/*!
 * Copyright 2014 Drifty Co.
 * http://drifty.com/
 *
 * Ionic, v1.0.0-rc.1
 * A powerful HTML5 mobile app framework.
 * http://ionicframework.com/
 *
 * By @maxlynch, @benjsperry, @adamdbradley <3
 *
 * Licensed under the MIT license. Please see LICENSE for more information.
 *
 */

(function() {
/*
 * deprecated.js
 * https://github.com/wearefractal/deprecated/
 * Copyright (c) 2014 Fractal <contact@wearefractal.com>
 * License MIT
 */
//Interval object
var deprecated = {
  method: function(msg, log, fn) {
    var called = false;
    return function deprecatedMethod() {
      if (!called) {
        called = true;
        log(msg);
      }
      return fn.apply(this, arguments);
    };
  },

  field: function(msg, log, parent, field, val) {
    var called = false;
    var getter = function() {
      if (!called) {
        called = true;
        log(msg);
      }
      return val;
    };
    var setter = function(v) {
      if (!called) {
        called = true;
        log(msg);
      }
      val = v;
      return v;
    };
    Object.defineProperty(parent, field, {
      get: getter,
      set: setter,
      enumerable: true
    });
    return;
  }
};

var IonicModule = angular.module('ionic', ['ngAnimate', 'ngSanitize', 'ui.router']),
  extend = angular.extend,
  forEach = angular.forEach,
  isDefined = angular.isDefined,
  isNumber = angular.isNumber,
  isString = angular.isString,
  jqLite = angular.element,
  noop = angular.noop;

/**
 * @ngdoc service
 * @name $ionicActionSheet
 * @module ionic
 * @description
 * The Action Sheet is a slide-up pane that lets the user choose from a set of options.
 * Dangerous options are highlighted in red and made obvious.
 *
 * There are easy ways to cancel out of the action sheet, such as tapping the backdrop or even
 * hitting escape on the keyboard for desktop testing.
 *
 * ![Action Sheet](http://ionicframework.com.s3.amazonaws.com/docs/controllers/actionSheet.gif)
 *
 * @usage
 * To trigger an Action Sheet in your code, use the $ionicActionSheet service in your angular controllers:
 *
 * ```js
 * angular.module('mySuperApp', ['ionic'])
 * .controller(function($scope, $ionicActionSheet, $timeout) {
 *
 *  // Triggered on a button click, or some other target
 *  $scope.show = function() {
 *
 *    // Show the action sheet
 *    var hideSheet = $ionicActionSheet.show({
 *      buttons: [
 *        { text: '<b>Share</b> This' },
 *        { text: 'Move' }
 *      ],
 *      destructiveText: 'Delete',
 *      titleText: 'Modify your album',
 *      cancelText: 'Cancel',
 *      cancel: function() {
          // add cancel code..
        },
 *      buttonClicked: function(index) {
 *        return true;
 *      }
 *    });
 *
 *    // For example's sake, hide the sheet after two seconds
 *    $timeout(function() {
 *      hideSheet();
 *    }, 2000);
 *
 *  };
 * });
 * ```
 *
 */
IonicModule
.factory('$ionicActionSheet', [
  '$rootScope',
  '$compile',
  '$animate',
  '$timeout',
  '$ionicTemplateLoader',
  '$ionicPlatform',
  '$ionicBody',
function($rootScope, $compile, $animate, $timeout, $ionicTemplateLoader, $ionicPlatform, $ionicBody) {

  return {
    show: actionSheet
  };

  /**
   * @ngdoc method
   * @name $ionicActionSheet#show
   * @description
   * Load and return a new action sheet.
   *
   * A new isolated scope will be created for the
   * action sheet and the new element will be appended into the body.
   *
   * @param {object} options The options for this ActionSheet. Properties:
   *
   *  - `[Object]` `buttons` Which buttons to show.  Each button is an object with a `text` field.
   *  - `{string}` `titleText` The title to show on the action sheet.
   *  - `{string=}` `cancelText` the text for a 'cancel' button on the action sheet.
   *  - `{string=}` `destructiveText` The text for a 'danger' on the action sheet.
   *  - `{function=}` `cancel` Called if the cancel button is pressed, the backdrop is tapped or
   *     the hardware back button is pressed.
   *  - `{function=}` `buttonClicked` Called when one of the non-destructive buttons is clicked,
   *     with the index of the button that was clicked and the button object. Return true to close
   *     the action sheet, or false to keep it opened.
   *  - `{function=}` `destructiveButtonClicked` Called when the destructive button is clicked.
   *     Return true to close the action sheet, or false to keep it opened.
   *  -  `{boolean=}` `cancelOnStateChange` Whether to cancel the actionSheet when navigating
   *     to a new state.  Default true.
   *  - `{string}` `cssClass` The custom CSS class name.
   *
   * @returns {function} `hideSheet` A function which, when called, hides & cancels the action sheet.
   */
  function actionSheet(opts) {
    var scope = $rootScope.$new(true);

    extend(scope, {
      cancel: noop,
      destructiveButtonClicked: noop,
      buttonClicked: noop,
      $deregisterBackButton: noop,
      buttons: [],
      cancelOnStateChange: true
    }, opts || {});

    function textForIcon(text) {
      if (text && /icon/.test(text)) {
        scope.$actionSheetHasIcon = true;
      }
    }

    for (var x = 0; x < scope.buttons.length; x++) {
      textForIcon(scope.buttons[x].text);
    }
    textForIcon(scope.cancelText);
    textForIcon(scope.destructiveText);

    // Compile the template
    var element = scope.element = $compile('<ion-action-sheet ng-class="cssClass" buttons="buttons"></ion-action-sheet>')(scope);

    // Grab the sheet element for animation
    var sheetEl = jqLite(element[0].querySelector('.action-sheet-wrapper'));

    var stateChangeListenDone = scope.cancelOnStateChange ?
      $rootScope.$on('$stateChangeSuccess', function() { scope.cancel(); }) :
      noop;

    // removes the actionSheet from the screen
    scope.removeSheet = function(done) {
      if (scope.removed) return;

      scope.removed = true;
      sheetEl.removeClass('action-sheet-up');
      $timeout(function() {
        // wait to remove this due to a 300ms delay native
        // click which would trigging whatever was underneath this
        $ionicBody.removeClass('action-sheet-open');
      }, 400);
      scope.$deregisterBackButton();
      stateChangeListenDone();

      $animate.removeClass(element, 'active').then(function() {
        scope.$destroy();
        element.remove();
        // scope.cancel.$scope is defined near the bottom
        scope.cancel.$scope = sheetEl = null;
        (done || noop)();
      });
    };

    scope.showSheet = function(done) {
      if (scope.removed) return;

      $ionicBody.append(element)
                .addClass('action-sheet-open');

      $animate.addClass(element, 'active').then(function() {
        if (scope.removed) return;
        (done || noop)();
      });
      $timeout(function() {
        if (scope.removed) return;
        sheetEl.addClass('action-sheet-up');
      }, 20, false);
    };

    // registerBackButtonAction returns a callback to deregister the action
    scope.$deregisterBackButton = $ionicPlatform.registerBackButtonAction(
      function() {
        $timeout(scope.cancel);
      },
      PLATFORM_BACK_BUTTON_PRIORITY_ACTION_SHEET
    );

    // called when the user presses the cancel button
    scope.cancel = function() {
      // after the animation is out, call the cancel callback
      scope.removeSheet(opts.cancel);
    };

    scope.buttonClicked = function(index) {
      // Check if the button click event returned true, which means
      // we can close the action sheet
      if (opts.buttonClicked(index, opts.buttons[index]) === true) {
        scope.removeSheet();
      }
    };

    scope.destructiveButtonClicked = function() {
      // Check if the destructive button click event returned true, which means
      // we can close the action sheet
      if (opts.destructiveButtonClicked() === true) {
        scope.removeSheet();
      }
    };

    scope.showSheet();

    // Expose the scope on $ionicActionSheet's return value for the sake
    // of testing it.
    scope.cancel.$scope = scope;

    return scope.cancel;
  }
}]);


jqLite.prototype.addClass = function(cssClasses) {
  var x, y, cssClass, el, splitClasses, existingClasses;
  if (cssClasses && cssClasses != 'ng-scope' && cssClasses != 'ng-isolate-scope') {
    for (x = 0; x < this.length; x++) {
      el = this[x];
      if (el.setAttribute) {

        if (cssClasses.indexOf(' ') < 0 && el.classList.add) {
          el.classList.add(cssClasses);
        } else {
          existingClasses = (' ' + (el.getAttribute('class') || '') + ' ')
            .replace(/[\n\t]/g, " ");
          splitClasses = cssClasses.split(' ');

          for (y = 0; y < splitClasses.length; y++) {
            cssClass = splitClasses[y].trim();
            if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {
              existingClasses += cssClass + ' ';
            }
          }
          el.setAttribute('class', existingClasses.trim());
        }
      }
    }
  }
  return this;
};

jqLite.prototype.removeClass = function(cssClasses) {
  var x, y, splitClasses, cssClass, el;
  if (cssClasses) {
    for (x = 0; x < this.length; x++) {
      el = this[x];
      if (el.getAttribute) {
        if (cssClasses.indexOf(' ') < 0 && el.classList.remove) {
          el.classList.remove(cssClasses);
        } else {
          splitClasses = cssClasses.split(' ');

          for (y = 0; y < splitClasses.length; y++) {
            cssClass = splitClasses[y];
            el.setAttribute('class', (
                (" " + (el.getAttribute('class') || '') + " ")
                .replace(/[\n\t]/g, " ")
                .replace(" " + cssClass.trim() + " ", " ")).trim()
            );
          }
        }
      }
    }
  }
  return this;
};

/**
 * @ngdoc service
 * @name $ionicBackdrop
 * @module ionic
 * @description
 * Shows and hides a backdrop over the UI.  Appears behind popups, loading,
 * and other overlays.
 *
 * Often, multiple UI components require a backdrop, but only one backdrop is
 * ever needed in the DOM at a time.
 *
 * Therefore, each component that requires the backdrop to be shown calls
 * `$ionicBackdrop.retain()` when it wants the backdrop, then `$ionicBackdrop.release()`
 * when it is done with the backdrop.
 *
 * For each time `retain` is called, the backdrop will be shown until `release` is called.
 *
 * For example, if `retain` is called three times, the backdrop will be shown until `release`
 * is called three times.
 *
 * @usage
 *
 * ```js
 * function MyController($scope, $ionicBackdrop, $timeout) {
 *   //Show a backdrop for one second
 *   $scope.action = function() {
 *     $ionicBackdrop.retain();
 *     $timeout(function() {
 *       $ionicBackdrop.release();
 *     }, 1000);
 *   };
 * }
 * ```
 */
IonicModule
.factory('$ionicBackdrop', [
  '$document', '$timeout',
function($document, $timeout) {

  var el = jqLite('<div class="backdrop">');
  var backdropHolds = 0;

  $document[0].body.appendChild(el[0]);

  return {
    /**
     * @ngdoc method
     * @name $ionicBackdrop#retain
     * @description Retains the backdrop.
     */
    retain: retain,
    /**
     * @ngdoc method
     * @name $ionicBackdrop#release
     * @description
     * Releases the backdrop.
     */
    release: release,

    getElement: getElement,

    // exposed for testing
    _element: el
  };

  function retain() {
    if ((++backdropHolds) === 1) {
      el.addClass('visible');
      ionic.requestAnimationFrame(function() {
        backdropHolds && el.addClass('active');
      });
    }
  }
  function release() {
    if ((--backdropHolds) === 0) {
      el.removeClass('active');
      $timeout(function() {
        !backdropHolds && el.removeClass('visible');
      }, 400, false);
    }
  }

  function getElement() {
    return el;
  }

}]);

/**
 * @private
 */
IonicModule
.factory('$ionicBind', ['$parse', '$interpolate', function($parse, $interpolate) {
  var LOCAL_REGEXP = /^\s*([@=&])(\??)\s*(\w*)\s*$/;
  return function(scope, attrs, bindDefinition) {
    forEach(bindDefinition || {}, function (definition, scopeName) {
      //Adapted from angular.js $compile
      var match = definition.match(LOCAL_REGEXP) || [],
        attrName = match[3] || scopeName,
        mode = match[1], // @, =, or &
        parentGet,
        unwatch;

      switch (mode) {
        case '@':
          if (!attrs[attrName]) {
            return;
          }
          attrs.$observe(attrName, function(value) {
            scope[scopeName] = value;
          });
          // we trigger an interpolation to ensure
          // the value is there for use immediately
          if (attrs[attrName]) {
            scope[scopeName] = $interpolate(attrs[attrName])(scope);
          }
          break;

        case '=':
          if (!attrs[attrName]) {
            return;
          }
          unwatch = scope.$watch(attrs[attrName], function(value) {
            scope[scopeName] = value;
          });
          //Destroy parent scope watcher when this scope is destroyed
          scope.$on('$destroy', unwatch);
          break;

        case '&':
          /* jshint -W044 */
          if (attrs[attrName] && attrs[attrName].match(RegExp(scopeName + '\(.*?\)'))) {
            throw new Error('& expression binding "' + scopeName + '" looks like it will recursively call "' +
                          attrs[attrName] + '" and cause a stack overflow! Please choose a different scopeName.');
          }
          parentGet = $parse(attrs[attrName]);
          scope[scopeName] = function(locals) {
            return parentGet(scope, locals);
          };
          break;
      }
    });
  };
}]);

/**
 * @ngdoc service
 * @name $ionicBody
 * @module ionic
 * @description An angular utility service to easily and efficiently
 * add and remove CSS classes from the document's body element.
 */
IonicModule
.factory('$ionicBody', ['$document', function($document) {
  return {
    /**
     * @ngdoc method
     * @name $ionicBody#add
     * @description Add a class to the document's body element.
     * @param {string} class Each argument will be added to the body element.
     * @returns {$ionicBody} The $ionicBody service so methods can be chained.
     */
    addClass: function() {
      for (var x = 0; x < arguments.length; x++) {
        $document[0].body.classList.add(arguments[x]);
      }
      return this;
    },
    /**
     * @ngdoc method
     * @name $ionicBody#removeClass
     * @description Remove a class from the document's body element.
     * @param {string} class Each argument will be removed from the body element.
     * @returns {$ionicBody} The $ionicBody service so methods can be chained.
     */
    removeClass: function() {
      for (var x = 0; x < arguments.length; x++) {
        $document[0].body.classList.remove(arguments[x]);
      }
      return this;
    },
    /**
     * @ngdoc method
     * @name $ionicBody#enableClass
     * @description Similar to the `add` method, except the first parameter accepts a boolean
     * value determining if the class should be added or removed. Rather than writing user code,
     * such as "if true then add the class, else then remove the class", this method can be
     * given a true or false value which reduces redundant code.
     * @param {boolean} shouldEnableClass A true/false value if the class should be added or removed.
     * @param {string} class Each remaining argument would be added or removed depending on
     * the first argument.
     * @returns {$ionicBody} The $ionicBody service so methods can be chained.
     */
    enableClass: function(shouldEnableClass) {
      var args = Array.prototype.slice.call(arguments).slice(1);
      if (shouldEnableClass) {
        this.addClass.apply(this, args);
      } else {
        this.removeClass.apply(this, args);
      }
      return this;
    },
    /**
     * @ngdoc method
     * @name $ionicBody#append
     * @description Append a child to the document's body.
     * @param {element} element The element to be appended to the body. The passed in element
     * can be either a jqLite element, or a DOM element.
     * @returns {$ionicBody} The $ionicBody service so methods can be chained.
     */
    append: function(ele) {
      $document[0].body.appendChild(ele.length ? ele[0] : ele);
      return this;
    },
    /**
     * @ngdoc method
     * @name $ionicBody#get
     * @description Get the document's body element.
     * @returns {element} Returns the document's body element.
     */
    get: function() {
      return $document[0].body;
    }
  };
}]);

IonicModule
.factory('$ionicClickBlock', [
  '$document',
  '$ionicBody',
  '$timeout',
function($document, $ionicBody, $timeout) {
  var CSS_HIDE = 'click-block-hide';
  var cbEle, fallbackTimer, pendingShow;

  function preventClick(ev) {
    ev.preventDefault();
    ev.stopPropagation();
  }

  function addClickBlock() {
    if (pendingShow) {
      if (cbEle) {
        cbEle.classList.remove(CSS_HIDE);
      } else {
        cbEle = $document[0].createElement('div');
        cbEle.className = 'click-block';
        $ionicBody.append(cbEle);
        cbEle.addEventListener('touchstart', preventClick);
        cbEle.addEventListener('mousedown', preventClick);
      }
      pendingShow = false;
    }
  }

  function removeClickBlock() {
    cbEle && cbEle.classList.add(CSS_HIDE);
  }

  return {
    show: function(autoExpire) {
      pendingShow = true;
      $timeout.cancel(fallbackTimer);
      fallbackTimer = $timeout(this.hide, autoExpire || 310);
      addClickBlock();
    },
    hide: function() {
      pendingShow = false;
      $timeout.cancel(fallbackTimer);
      removeClickBlock();
    }
  };
}]);

/**
 * @ngdoc service
 * @name $ionicGesture
 * @module ionic
 * @description An angular service exposing ionic
 * {@link ionic.utility:ionic.EventController}'s gestures.
 */
IonicModule
.factory('$ionicGesture', [function() {
  return {
    /**
     * @ngdoc method
     * @name $ionicGesture#on
     * @description Add an event listener for a gesture on an element. See {@link ionic.utility:ionic.EventController#onGesture}.
     * @param {string} eventType The gesture event to listen for.
     * @param {function(e)} callback The function to call when the gesture
     * happens.
     * @param {element} $element The angular element to listen for the event on.
     * @param {object} options object.
     * @returns {ionic.Gesture} The gesture object (use this to remove the gesture later on).
     */
    on: function(eventType, cb, $element, options) {
      return window.ionic.onGesture(eventType, cb, $element[0], options);
    },
    /**
     * @ngdoc method
     * @name $ionicGesture#off
     * @description Remove an event listener for a gesture on an element. See {@link ionic.utility:ionic.EventController#offGesture}.
     * @param {ionic.Gesture} gesture The gesture that should be removed.
     * @param {string} eventType The gesture event to remove the listener for.
     * @param {function(e)} callback The listener to remove.
     */
    off: function(gesture, eventType, cb) {
      return window.ionic.offGesture(gesture, eventType, cb);
    }
  };
}]);

/**
 * @ngdoc service
 * @name $ionicHistory
 * @module ionic
 * @description
 * $ionicHistory keeps track of views as the user navigates through an app. Similar to the way a
 * browser behaves, an Ionic app is able to keep track of the previous view, the current view, and
 * the forward view (if there is one).  However, a typical web browser only keeps track of one
 * history stack in a linear fashion.
 *
 * Unlike a traditional browser environment, apps and webapps have parallel independent histories,
 * such as with tabs. Should a user navigate few pages deep on one tab, and then switch to a new
 * tab and back, the back button relates not to the previous tab, but to the previous pages
 * visited within _that_ tab.
 *
 * `$ionicHistory` facilitates this parallel history architecture.
 */

IonicModule
.factory('$ionicHistory', [
  '$rootScope',
  '$state',
  '$location',
  '$window',
  '$timeout',
  '$ionicViewSwitcher',
  '$ionicNavViewDelegate',
function($rootScope, $state, $location, $window, $timeout, $ionicViewSwitcher, $ionicNavViewDelegate) {

  // history actions while navigating views
  var ACTION_INITIAL_VIEW = 'initialView';
  var ACTION_NEW_VIEW = 'newView';
  var ACTION_MOVE_BACK = 'moveBack';
  var ACTION_MOVE_FORWARD = 'moveForward';

  // direction of navigation
  var DIRECTION_BACK = 'back';
  var DIRECTION_FORWARD = 'forward';
  var DIRECTION_ENTER = 'enter';
  var DIRECTION_EXIT = 'exit';
  var DIRECTION_SWAP = 'swap';
  var DIRECTION_NONE = 'none';

  var stateChangeCounter = 0;
  var lastStateId, nextViewOptions, nextViewExpireTimer, forcedNav;

  var viewHistory = {
    histories: { root: { historyId: 'root', parentHistoryId: null, stack: [], cursor: -1 } },
    views: {},
    backView: null,
    forwardView: null,
    currentView: null
  };

  var View = function() {};
  View.prototype.initialize = function(data) {
    if (data) {
      for (var name in data) this[name] = data[name];
      return this;
    }
    return null;
  };
  View.prototype.go = function() {

    if (this.stateName) {
      return $state.go(this.stateName, this.stateParams);
    }

    if (this.url && this.url !== $location.url()) {

      if (viewHistory.backView === this) {
        return $window.history.go(-1);
      } else if (viewHistory.forwardView === this) {
        return $window.history.go(1);
      }

      $location.url(this.url);
      return;
    }

    return null;
  };
  View.prototype.destroy = function() {
    if (this.scope) {
      this.scope.$destroy && this.scope.$destroy();
      this.scope = null;
    }
  };


  function getViewById(viewId) {
    return (viewId ? viewHistory.views[ viewId ] : null);
  }

  function getBackView(view) {
    return (view ? getViewById(view.backViewId) : null);
  }

  function getForwardView(view) {
    return (view ? getViewById(view.forwardViewId) : null);
  }

  function getHistoryById(historyId) {
    return (historyId ? viewHistory.histories[ historyId ] : null);
  }

  function getHistory(scope) {
    var histObj = getParentHistoryObj(scope);

    if (!viewHistory.histories[ histObj.historyId ]) {
      // this history object exists in parent scope, but doesn't
      // exist in the history data yet
      viewHistory.histories[ histObj.historyId ] = {
        historyId: histObj.historyId,
        parentHistoryId: getParentHistoryObj(histObj.scope.$parent).historyId,
        stack: [],
        cursor: -1
      };
    }
    return getHistoryById(histObj.historyId);
  }

  function getParentHistoryObj(scope) {
    var parentScope = scope;
    while (parentScope) {
      if (parentScope.hasOwnProperty('$historyId')) {
        // this parent scope has a historyId
        return { historyId: parentScope.$historyId, scope: parentScope };
      }
      // nothing found keep climbing up
      parentScope = parentScope.$parent;
    }
    // no history for the parent, use the root
    return { historyId: 'root', scope: $rootScope };
  }

  function setNavViews(viewId) {
    viewHistory.currentView = getViewById(viewId);
    viewHistory.backView = getBackView(viewHistory.currentView);
    viewHistory.forwardView = getForwardView(viewHistory.currentView);
  }

  function getCurrentStateId() {
    var id;
    if ($state && $state.current && $state.current.name) {
      id = $state.current.name;
      if ($state.params) {
        for (var key in $state.params) {
          if ($state.params.hasOwnProperty(key) && $state.params[key]) {
            id += "_" + key + "=" + $state.params[key];
          }
        }
      }
      return id;
    }
    // if something goes wrong make sure its got a unique stateId
    return ionic.Utils.nextUid();
  }

  function getCurrentStateParams() {
    var rtn;
    if ($state && $state.params) {
      for (var key in $state.params) {
        if ($state.params.hasOwnProperty(key)) {
          rtn = rtn || {};
          rtn[key] = $state.params[key];
        }
      }
    }
    return rtn;
  }


  return {

    register: function(parentScope, viewLocals) {

      var currentStateId = getCurrentStateId(),
          hist = getHistory(parentScope),
          currentView = viewHistory.currentView,
          backView = viewHistory.backView,
          forwardView = viewHistory.forwardView,
          viewId = null,
          action = null,
          direction = DIRECTION_NONE,
          historyId = hist.historyId,
          url = $location.url(),
          tmp, x, ele;

      if (lastStateId !== currentStateId) {
        lastStateId = currentStateId;
        stateChangeCounter++;
      }

      if (forcedNav) {
        // we've previously set exactly what to do
        viewId = forcedNav.viewId;
        action = forcedNav.action;
        direction = forcedNav.direction;
        forcedNav = null;

      } else if (backView && backView.stateId === currentStateId) {
        // they went back one, set the old current view as a forward view
        viewId = backView.viewId;
        historyId = backView.historyId;
        action = ACTION_MOVE_BACK;
        if (backView.historyId === currentView.historyId) {
          // went back in the same history
          direction = DIRECTION_BACK;

        } else if (currentView) {
          direction = DIRECTION_EXIT;

          tmp = getHistoryById(backView.historyId);
          if (tmp && tmp.parentHistoryId === currentView.historyId) {
            direction = DIRECTION_ENTER;

          } else {
            tmp = getHistoryById(currentView.historyId);
            if (tmp && tmp.parentHistoryId === hist.parentHistoryId) {
              direction = DIRECTION_SWAP;
            }
          }
        }

      } else if (forwardView && forwardView.stateId === currentStateId) {
        // they went to the forward one, set the forward view to no longer a forward view
        viewId = forwardView.viewId;
        historyId = forwardView.historyId;
        action = ACTION_MOVE_FORWARD;
        if (forwardView.historyId === currentView.historyId) {
          direction = DIRECTION_FORWARD;

        } else if (currentView) {
          direction = DIRECTION_EXIT;

          if (currentView.historyId === hist.parentHistoryId) {
            direction = DIRECTION_ENTER;

          } else {
            tmp = getHistoryById(currentView.historyId);
            if (tmp && tmp.parentHistoryId === hist.parentHistoryId) {
              direction = DIRECTION_SWAP;
            }
          }
        }

        tmp = getParentHistoryObj(parentScope);
        if (forwardView.historyId && tmp.scope) {
          // if a history has already been created by the forward view then make sure it stays the same
          tmp.scope.$historyId = forwardView.historyId;
          historyId = forwardView.historyId;
        }

      } else if (currentView && currentView.historyId !== historyId &&
                hist.cursor > -1 && hist.stack.length > 0 && hist.cursor < hist.stack.length &&
                hist.stack[hist.cursor].stateId === currentStateId) {
        // they just changed to a different history and the history already has views in it
        var switchToView = hist.stack[hist.cursor];
        viewId = switchToView.viewId;
        historyId = switchToView.historyId;
        action = ACTION_MOVE_BACK;
        direction = DIRECTION_SWAP;

        tmp = getHistoryById(currentView.historyId);
        if (tmp && tmp.parentHistoryId === historyId) {
          direction = DIRECTION_EXIT;

        } else {
          tmp = getHistoryById(historyId);
          if (tmp && tmp.parentHistoryId === currentView.historyId) {
            direction = DIRECTION_ENTER;
          }
        }

        // if switching to a different history, and the history of the view we're switching
        // to has an existing back view from a different history than itself, then
        // it's back view would be better represented using the current view as its back view
        tmp = getViewById(switchToView.backViewId);
        if (tmp && switchToView.historyId !== tmp.historyId) {
          hist.stack[hist.cursor].backViewId = currentView.viewId;
        }

      } else {

        // create an element from the viewLocals template
        ele = $ionicViewSwitcher.createViewEle(viewLocals);
        if (this.isAbstractEle(ele, viewLocals)) {
          void 0;
          return {
            action: 'abstractView',
            direction: DIRECTION_NONE,
            ele: ele
          };
        }

        // set a new unique viewId
        viewId = ionic.Utils.nextUid();

        if (currentView) {
          // set the forward view if there is a current view (ie: if its not the first view)
          currentView.forwardViewId = viewId;

          action = ACTION_NEW_VIEW;

          // check if there is a new forward view within the same history
          if (forwardView && currentView.stateId !== forwardView.stateId &&
             currentView.historyId === forwardView.historyId) {
            // they navigated to a new view but the stack already has a forward view
            // since its a new view remove any forwards that existed
            tmp = getHistoryById(forwardView.historyId);
            if (tmp) {
              // the forward has a history
              for (x = tmp.stack.length - 1; x >= forwardView.index; x--) {
                // starting from the end destroy all forwards in this history from this point
                var stack_x = tmp.stack[x];
                stack_x && stack_x.destroy && stack_x.destroy();
                tmp.stack.splice(x);
              }
              historyId = forwardView.historyId;
            }
          }

          // its only moving forward if its in the same history
          if (hist.historyId === currentView.historyId) {
            direction = DIRECTION_FORWARD;

          } else if (currentView.historyId !== hist.historyId) {
            direction = DIRECTION_ENTER;

            tmp = getHistoryById(currentView.historyId);
            if (tmp && tmp.parentHistoryId === hist.parentHistoryId) {
              direction = DIRECTION_SWAP;

            } else {
              tmp = getHistoryById(tmp.parentHistoryId);
              if (tmp && tmp.historyId === hist.historyId) {
                direction = DIRECTION_EXIT;
              }
            }
          }

        } else {
          // there's no current view, so this must be the initial view
          action = ACTION_INITIAL_VIEW;
        }

        if (stateChangeCounter < 2) {
          // views that were spun up on the first load should not animate
          direction = DIRECTION_NONE;
        }

        // add the new view
        viewHistory.views[viewId] = this.createView({
          viewId: viewId,
          index: hist.stack.length,
          historyId: hist.historyId,
          backViewId: (currentView && currentView.viewId ? currentView.viewId : null),
          forwardViewId: null,
          stateId: currentStateId,
          stateName: this.currentStateName(),
          stateParams: getCurrentStateParams(),
          url: url
        });

        // add the new view to this history's stack
        hist.stack.push(viewHistory.views[viewId]);
      }

      $timeout.cancel(nextViewExpireTimer);
      if (nextViewOptions) {
        if (nextViewOptions.disableAnimate) direction = DIRECTION_NONE;
        if (nextViewOptions.disableBack) viewHistory.views[viewId].backViewId = null;
        if (nextViewOptions.historyRoot) {
          for (x = 0; x < hist.stack.length; x++) {
            if (hist.stack[x].viewId === viewId) {
              hist.stack[x].index = 0;
              hist.stack[x].backViewId = hist.stack[x].forwardViewId = null;
            } else {
              delete viewHistory.views[hist.stack[x].viewId];
            }
          }
          hist.stack = [viewHistory.views[viewId]];
        }
        nextViewOptions = null;
      }

      setNavViews(viewId);

      if (viewHistory.backView && historyId == viewHistory.backView.historyId && currentStateId == viewHistory.backView.stateId && url == viewHistory.backView.url) {
        for (x = 0; x < hist.stack.length; x++) {
          if (hist.stack[x].viewId == viewId) {
            action = 'dupNav';
            direction = DIRECTION_NONE;
            if (x > 0) {
              hist.stack[x - 1].forwardViewId = null;
            }
            viewHistory.forwardView = null;
            viewHistory.currentView.index = viewHistory.backView.index;
            viewHistory.currentView.backViewId = viewHistory.backView.backViewId;
            viewHistory.backView = getBackView(viewHistory.backView);
            hist.stack.splice(x, 1);
            break;
          }
        }
      }

      void 0;

      hist.cursor = viewHistory.currentView.index;

      return {
        viewId: viewId,
        action: action,
        direction: direction,
        historyId: historyId,
        enableBack: this.enabledBack(viewHistory.currentView),
        isHistoryRoot: (viewHistory.currentView.index === 0),
        ele: ele
      };
    },

    registerHistory: function(scope) {
      scope.$historyId = ionic.Utils.nextUid();
    },

    createView: function(data) {
      var newView = new View();
      return newView.initialize(data);
    },

    getViewById: getViewById,

    /**
     * @ngdoc method
     * @name $ionicHistory#viewHistory
     * @description The app's view history data, such as all the views and histories, along
     * with how they are ordered and linked together within the navigation stack.
     * @returns {object} Returns an object containing the apps view history data.
     */
    viewHistory: function() {
      return viewHistory;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#currentView
     * @description The app's current view.
     * @returns {object} Returns the current view.
     */
    currentView: function(view) {
      if (arguments.length) {
        viewHistory.currentView = view;
      }
      return viewHistory.currentView;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#currentHistoryId
     * @description The ID of the history stack which is the parent container of the current view.
     * @returns {string} Returns the current history ID.
     */
    currentHistoryId: function() {
      return viewHistory.currentView ? viewHistory.currentView.historyId : null;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#currentTitle
     * @description Gets and sets the current view's title.
     * @param {string=} val The title to update the current view with.
     * @returns {string} Returns the current view's title.
     */
    currentTitle: function(val) {
      if (viewHistory.currentView) {
        if (arguments.length) {
          viewHistory.currentView.title = val;
        }
        return viewHistory.currentView.title;
      }
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#backView
     * @description Returns the view that was before the current view in the history stack.
     * If the user navigated from View A to View B, then View A would be the back view, and
     * View B would be the current view.
     * @returns {object} Returns the back view.
     */
    backView: function(view) {
      if (arguments.length) {
        viewHistory.backView = view;
      }
      return viewHistory.backView;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#backTitle
     * @description Gets the back view's title.
     * @returns {string} Returns the back view's title.
     */
    backTitle: function(view) {
      var backView = (view && getViewById(view.backViewId)) || viewHistory.backView;
      return backView && backView.title;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#forwardView
     * @description Returns the view that was in front of the current view in the history stack.
     * A forward view would exist if the user navigated from View A to View B, then
     * navigated back to View A. At this point then View B would be the forward view, and View
     * A would be the current view.
     * @returns {object} Returns the forward view.
     */
    forwardView: function(view) {
      if (arguments.length) {
        viewHistory.forwardView = view;
      }
      return viewHistory.forwardView;
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#currentStateName
     * @description Returns the current state name.
     * @returns {string}
     */
    currentStateName: function() {
      return ($state && $state.current ? $state.current.name : null);
    },

    isCurrentStateNavView: function(navView) {
      return !!($state && $state.current && $state.current.views && $state.current.views[navView]);
    },

    goToHistoryRoot: function(historyId) {
      if (historyId) {
        var hist = getHistoryById(historyId);
        if (hist && hist.stack.length) {
          if (viewHistory.currentView && viewHistory.currentView.viewId === hist.stack[0].viewId) {
            return;
          }
          forcedNav = {
            viewId: hist.stack[0].viewId,
            action: ACTION_MOVE_BACK,
            direction: DIRECTION_BACK
          };
          hist.stack[0].go();
        }
      }
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#goBack
     * @description Navigates the app to the back view, if a back view exists.
     */
    goBack: function() {
      viewHistory.backView && viewHistory.backView.go();
    },


    enabledBack: function(view) {
      var backView = getBackView(view);
      return !!(backView && backView.historyId === view.historyId);
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#clearHistory
     * @description Clears out the app's entire history, except for the current view.
     */
    clearHistory: function() {
      var
      histories = viewHistory.histories,
      currentView = viewHistory.currentView;

      if (histories) {
        for (var historyId in histories) {

          if (histories[historyId].stack) {
            histories[historyId].stack = [];
            histories[historyId].cursor = -1;
          }

          if (currentView && currentView.historyId === historyId) {
            currentView.backViewId = currentView.forwardViewId = null;
            histories[historyId].stack.push(currentView);
          } else if (histories[historyId].destroy) {
            histories[historyId].destroy();
          }

        }
      }

      for (var viewId in viewHistory.views) {
        if (viewId !== currentView.viewId) {
          delete viewHistory.views[viewId];
        }
      }

      if (currentView) {
        setNavViews(currentView.viewId);
      }
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#clearCache
     * @description Removes all cached views within every {@link ionic.directive:ionNavView}.
     * This both removes the view element from the DOM, and destroy it's scope.
     */
    clearCache: function() {
      $ionicNavViewDelegate._instances.forEach(function(instance) {
        instance.clearCache();
      });
    },

    /**
     * @ngdoc method
     * @name $ionicHistory#nextViewOptions
     * @description Sets options for the next view. This method can be useful to override
     * certain view/transition defaults right before a view transition happens. For example,
     * the {@link ionic.directive:menuClose} directive uses this method internally to ensure
     * an animated view transition does not happen when a side menu is open, and also sets
     * the next view as the root of its history stack. After the transition these options
     * are set back to null.
     *
     * Available options:
     *
     * * `disableAnimate`: Do not animate the next transition.
     * * `disableBack`: The next view should forget its back view, and set it to null.
     * * `historyRoot`: The next view should become the root view in its history stack.
     *
     * ```js
     * $ionicHistory.nextViewOptions({
     *   disableAnimate: true,
     *   disableBack: true
     * });
     * ```
     */
    nextViewOptions: function(opts) {
      if (arguments.length) {
        $timeout.cancel(nextViewExpireTimer);
        if (opts === null) {
          nextViewOptions = opts;
        } else {
          nextViewOptions = nextViewOptions || {};
          extend(nextViewOptions, opts);
          if (nextViewOptions.expire) {
            nextViewExpireTimer = $timeout(function() {
              nextViewOptions = null;
            }, nextViewOptions.expire);
          }
        }
      }
      return nextViewOptions;
    },

    isAbstractEle: function(ele, viewLocals) {
      if (viewLocals && viewLocals.$$state && viewLocals.$$state.self.abstract) {
        return true;
      }
      return !!(ele && (isAbstractTag(ele) || isAbstractTag(ele.children())));
    },

    isActiveScope: function(scope) {
      if (!scope) return false;

      var climbScope = scope;
      var currentHistoryId = this.currentHistoryId();
      var foundHistoryId;

      while (climbScope) {
        if (climbScope.$$disconnected) {
          return false;
        }

        if (!foundHistoryId && climbScope.hasOwnProperty('$historyId')) {
          foundHistoryId = true;
        }

        if (currentHistoryId) {
          if (climbScope.hasOwnProperty('$historyId') && currentHistoryId == climbScope.$historyId) {
            return true;
          }
          if (climbScope.hasOwnProperty('$activeHistoryId')) {
            if (currentHistoryId == climbScope.$activeHistoryId) {
              if (climbScope.hasOwnProperty('$historyId')) {
                return true;
              }
              if (!foundHistoryId) {
                return true;
              }
            }
          }
        }

        if (foundHistoryId && climbScope.hasOwnProperty('$activeHistoryId')) {
          foundHistoryId = false;
        }

        climbScope = climbScope.$parent;
      }

      return currentHistoryId ? currentHistoryId == 'root' : true;
    }

  };

  function isAbstractTag(ele) {
    return ele && ele.length && /ion-side-menus|ion-tabs/i.test(ele[0].tagName);
  }

}])

.run([
  '$rootScope',
  '$state',
  '$location',
  '$document',
  '$ionicPlatform',
  '$ionicHistory',
function($rootScope, $state, $location, $document, $ionicPlatform, $ionicHistory) {

  // always reset the keyboard state when change stage
  $rootScope.$on('$ionicView.beforeEnter', function() {
    ionic.keyboard && ionic.keyboard.hide && ionic.keyboard.hide();
  });

  $rootScope.$on('$ionicHistory.change', function(e, data) {
    if (!data) return;

    var viewHistory = $ionicHistory.viewHistory();

    var hist = (data.historyId ? viewHistory.histories[ data.historyId ] : null);
    if (hist && hist.cursor > -1 && hist.cursor < hist.stack.length) {
      // the history they're going to already exists
      // go to it's last view in its stack
      var view = hist.stack[ hist.cursor ];
      return view.go(data);
    }

    // this history does not have a URL, but it does have a uiSref
    // figure out its URL from the uiSref
    if (!data.url && data.uiSref) {
      data.url = $state.href(data.uiSref);
    }

    if (data.url) {
      // don't let it start with a #, messes with $location.url()
      if (data.url.indexOf('#') === 0) {
        data.url = data.url.replace('#', '');
      }
      if (data.url !== $location.url()) {
        // we've got a good URL, ready GO!
        $location.url(data.url);
      }
    }
  });

  $rootScope.$ionicGoBack = function() {
    $ionicHistory.goBack();
  };

  // Set the document title when a new view is shown
  $rootScope.$on('$ionicView.afterEnter', function(ev, data) {
    if (data && data.title) {
      $document[0].title = data.title;
    }
  });

  // Triggered when devices with a hardware back button (Android) is clicked by the user
  // This is a Cordova/Phonegap platform specifc method
  function onHardwareBackButton(e) {
    var backView = $ionicHistory.backView();
    if (backView) {
      // there is a back view, go to it
      backView.go();
    } else {
      // there is no back view, so close the app instead
      ionic.Platform.exitApp();
    }
    e.preventDefault();
    return false;
  }
  $ionicPlatform.registerBackButtonAction(
    onHardwareBackButton,
    PLATFORM_BACK_BUTTON_PRIORITY_VIEW
  );

}]);

/**
 * @ngdoc provider
 * @name $ionicConfigProvider
 * @module ionic
 * @description
 * Ionic automatically takes platform configurations into account to adjust things like what
 * transition style to use and whether tab icons should show on the top or bottom. For example,
 * iOS will move forward by transitioning the entering view from right to center and the leaving
 * view from center to left. However, Android will transition with the entering view going from
 * bottom to center, covering the previous view, which remains stationary. It should be noted
 * that when a platform is not iOS or Android, then it'll default to iOS. So if you are
 * developing on a desktop browser, it's going to take on iOS default configs.
 *
 * These configs can be changed using the `$ionicConfigProvider` during the configuration phase
 * of your app. Additionally, `$ionicConfig` can also set and get config values during the run
 * phase and within the app itself.
 *
 * By default, all base config variables are set to `'platform'`, which means it'll take on the
 * default config of the platform on which it's running. Config variables can be set at this
 * level so all platforms follow the same setting, rather than its platform config.
 * The following code would set the same config variable for all platforms:
 *
 * ```js
 * $ionicConfigProvider.views.maxCache(10);
 * ```
 *
 * Additionally, each platform can have it's own config within the `$ionicConfigProvider.platform`
 * property. The config below would only apply to Android devices.
 *
 * ```js
 * $ionicConfigProvider.platform.android.views.maxCache(5);
 * ```
 *
 * @usage
 * ```js
 * var myApp = angular.module('reallyCoolApp', ['ionic']);
 *
 * myApp.config(function($ionicConfigProvider) {
 *   $ionicConfigProvider.views.maxCache(5);
 *
 *   // note that you can also chain configs
 *   $ionicConfigProvider.backButton.text('Go Back').icon('ion-chevron-left');
 * });
 * ```
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#views.transition
 * @description Animation style when transitioning between views. Default `platform`.
 *
 * @param {string} transition Which style of view transitioning to use.
 *
 * * `platform`: Dynamically choose the correct transition style depending on the platform
 * the app is running from. If the platform is not `ios` or `android` then it will default
 * to `ios`.
 * * `ios`: iOS style transition.
 * * `android`: Android style transition.
 * * `none`: Do not perform animated transitions.
 *
 * @returns {string} value
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#views.maxCache
 * @description  Maximum number of view elements to cache in the DOM. When the max number is
 * exceeded, the view with the longest time period since it was accessed is removed. Views that
 * stay in the DOM cache the view's scope, current state, and scroll position. The scope is
 * disconnected from the `$watch` cycle when it is cached and reconnected when it enters again.
 * When the maximum cache is `0`, the leaving view's element will be removed from the DOM after
 * each view transition, and the next time the same view is shown, it will have to re-compile,
 * attach to the DOM, and link the element again. This disables caching, in effect.
 * @param {number} maxNumber Maximum number of views to retain. Default `10`.
 * @returns {number} How many views Ionic will hold onto until the a view is removed.
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#views.forwardCache
 * @description  By default, when navigating, views that were recently visited are cached, and
 * the same instance data and DOM elements are referenced when navigating back. However, when
 * navigating back in the history, the "forward" views are removed from the cache. If you
 * navigate forward to the same view again, it'll create a new DOM element and controller
 * instance. Basically, any forward views are reset each time. Set this config to `true` to have
 * forward views cached and not reset on each load.
 * @param {boolean} value
 * @returns {boolean}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#backButton.icon
 * @description Back button icon.
 * @param {string} value
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#backButton.text
 * @description Back button text.
 * @param {string} value Defaults to `Back`.
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#backButton.previousTitleText
 * @description If the previous title text should become the back button text. This
 * is the default for iOS.
 * @param {boolean} value
 * @returns {boolean}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#form.checkbox
 * @description Checkbox style. Android defaults to `square` and iOS defaults to `circle`.
 * @param {string} value
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#form.toggle
 * @description Toggle item style. Android defaults to `small` and iOS defaults to `large`.
 * @param {string} value
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#tabs.style
 * @description Tab style. Android defaults to `striped` and iOS defaults to `standard`.
 * @param {string} value Available values include `striped` and `standard`.
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#tabs.position
 * @description Tab position. Android defaults to `top` and iOS defaults to `bottom`.
 * @param {string} value Available values include `top` and `bottom`.
 * @returns {string}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#templates.maxPrefetch
 * @description Sets the maximum number of templates to prefetch from the templateUrls defined in
 * $stateProvider.state. If set to `0`, the user will have to wait
 * for a template to be fetched the first time when navigating to a new page. Default `30`.
 * @param {integer} value Max number of template to prefetch from the templateUrls defined in
 * `$stateProvider.state()`.
 * @returns {integer}
 */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#navBar.alignTitle
 * @description Which side of the navBar to align the title. Default `center`.
 *
 * @param {string} value side of the navBar to align the title.
 *
 * * `platform`: Dynamically choose the correct title style depending on the platform
 * the app is running from. If the platform is `ios`, it will default to `center`.
 * If the platform is `android`, it will default to `left`. If the platform is not
 * `ios` or `android`, it will default to `center`.
 *
 * * `left`: Left align the title in the navBar
 * * `center`: Center align the title in the navBar
 * * `right`: Right align the title in the navBar.
 *
 * @returns {string} value
 */

/**
  * @ngdoc method
  * @name $ionicConfigProvider#navBar.positionPrimaryButtons
  * @description Which side of the navBar to align the primary navBar buttons. Default `left`.
  *
  * @param {string} value side of the navBar to align the primary navBar buttons.
  *
  * * `platform`: Dynamically choose the correct title style depending on the platform
  * the app is running from. If the platform is `ios`, it will default to `left`.
  * If the platform is `android`, it will default to `right`. If the platform is not
  * `ios` or `android`, it will default to `left`.
  *
  * * `left`: Left align the primary navBar buttons in the navBar
  * * `right`: Right align the primary navBar buttons in the navBar.
  *
  * @returns {string} value
  */

/**
 * @ngdoc method
 * @name $ionicConfigProvider#navBar.positionSecondaryButtons
 * @description Which side of the navBar to align the secondary navBar buttons. Default `right`.
 *
 * @param {string} value side of the navBar to align the secondary navBar buttons.
 *
 * * `platform`: Dynamically choose the correct title style depending on the platform
 * the app is running from. If the platform is `ios`, it will default to `right`.
 * If the platform is `android`, it will default to `right`. If the platform is not
 * `ios` or `android`, it will default to `right`.
 *
 * * `left`: Left align the secondary navBar buttons in the navBar
 * * `right`: Right align the secondary navBar buttons in the navBar.
 *
 * @returns {string} value
 */

IonicModule
.provider('$ionicConfig', function() {

  var provider = this;
  provider.platform = {};
  var PLATFORM = 'platform';

  var configProperties = {
    views: {
      maxCache: PLATFORM,
      forwardCache: PLATFORM,
      transition: PLATFORM,
      swipeBackEnabled: PLATFORM,
      swipeBackHitWidth: PLATFORM
    },
    navBar: {
      alignTitle: PLATFORM,
      positionPrimaryButtons: PLATFORM,
      positionSecondaryButtons: PLATFORM,
      transition: PLATFORM
    },
    backButton: {
      icon: PLATFORM,
      text: PLATFORM,
      previousTitleText: PLATFORM
    },
    form: {
      checkbox: PLATFORM,
      toggle: PLATFORM
    },
    scrolling: {
      jsScrolling: PLATFORM
    },
    tabs: {
      style: PLATFORM,
      position: PLATFORM
    },
    templates: {
      maxPrefetch: PLATFORM
    },
    platform: {}
  };
  createConfig(configProperties, provider, '');



  // Default
  // -------------------------
  setPlatformConfig('default', {

    views: {
      maxCache: 10,
      forwardCache: false,
      transition: 'ios',
      swipeBackEnabled: true,
      swipeBackHitWidth: 45
    },

    navBar: {
      alignTitle: 'center',
      positionPrimaryButtons: 'left',
      positionSecondaryButtons: 'right',
      transition: 'view'
    },

    backButton: {
      icon: 'ion-ios-arrow-back',
      text: 'Back',
      previousTitleText: true
    },

    form: {
      checkbox: 'circle',
      toggle: 'large'
    },

    scrolling: {
      jsScrolling: true
    },

    tabs: {
      style: 'standard',
      position: 'bottom'
    },

    templates: {
      maxPrefetch: 30
    }

  });



  // iOS (it is the default already)
  // -------------------------
  setPlatformConfig('ios', {});



  // Android
  // -------------------------
  setPlatformConfig('android', {

    views: {
      transition: 'android',
      swipeBackEnabled: false
    },

    navBar: {
      alignTitle: 'left',
      positionPrimaryButtons: 'right',
      positionSecondaryButtons: 'right'
    },

    backButton: {
      icon: 'ion-android-arrow-back',
      text: false,
      previousTitleText: false
    },

    form: {
      checkbox: 'square',
      toggle: 'small'
    },

    tabs: {
      style: 'striped',
      position: 'top'
    }

  });


  provider.transitions = {
    views: {},
    navBar: {}
  };


  // iOS Transitions
  // -----------------------
  provider.transitions.views.ios = function(enteringEle, leavingEle, direction, shouldAnimate) {

    function setStyles(ele, opacity, x, boxShadowOpacity) {
      var css = {};
      css[ionic.CSS.TRANSITION_DURATION] = d.shouldAnimate ? '' : 0;
      css.opacity = opacity;
      if (boxShadowOpacity > -1) {
        css.boxShadow = '0 0 10px rgba(0,0,0,' + (d.shouldAnimate ? boxShadowOpacity * 0.45 : 0.3) + ')';
      }
      css[ionic.CSS.TRANSFORM] = 'translate3d(' + x + '%,0,0)';
      ionic.DomUtil.cachedStyles(ele, css);
    }

    var d = {
      run: function(step) {
        if (direction == 'forward') {
          setStyles(enteringEle, 1, (1 - step) * 99, 1 - step); // starting at 98% prevents a flicker
          setStyles(leavingEle, (1 - 0.1 * step), step * -33, -1);

        } else if (direction == 'back') {
          setStyles(enteringEle, (1 - 0.1 * (1 - step)), (1 - step) * -33, -1);
          setStyles(leavingEle, 1, step * 100, 1 - step);

        } else {
          // swap, enter, exit
          setStyles(enteringEle, 1, 0, -1);
          setStyles(leavingEle, 0, 0, -1);
        }
      },
      shouldAnimate: shouldAnimate && (direction == 'forward' || direction == 'back')
    };

    return d;
  };

  provider.transitions.navBar.ios = function(enteringHeaderBar, leavingHeaderBar, direction, shouldAnimate) {

    function setStyles(ctrl, opacity, titleX, backTextX) {
      var css = {};
      css[ionic.CSS.TRANSITION_DURATION] = d.shouldAnimate ? '' : 0;
      css.opacity = opacity === 1 ? '' : opacity;

      ctrl.setCss('buttons-left', css);
      ctrl.setCss('buttons-right', css);
      ctrl.setCss('back-button', css);

      css[ionic.CSS.TRANSFORM] = 'translate3d(' + backTextX + 'px,0,0)';
      ctrl.setCss('back-text', css);

      css[ionic.CSS.TRANSFORM] = 'translate3d(' + titleX + 'px,0,0)';
      ctrl.setCss('title', css);
    }

    function enter(ctrlA, ctrlB, step) {
      if (!ctrlA || !ctrlB) return;
      var titleX = (ctrlA.titleTextX() + ctrlA.titleWidth()) * (1 - step);
      var backTextX = (ctrlB && (ctrlB.titleTextX() - ctrlA.backButtonTextLeft()) * (1 - step)) || 0;
      setStyles(ctrlA, step, titleX, backTextX);
    }

    function leave(ctrlA, ctrlB, step) {
      if (!ctrlA || !ctrlB) return;
      var titleX = (-(ctrlA.titleTextX() - ctrlB.backButtonTextLeft()) - (ctrlA.titleLeftRight())) * step;
      setStyles(ctrlA, 1 - step, titleX, 0);
    }

    var d = {
      run: function(step) {
        var enteringHeaderCtrl = enteringHeaderBar.controller();
        var leavingHeaderCtrl = leavingHeaderBar && leavingHeaderBar.controller();
        if (d.direction == 'back') {
          leave(enteringHeaderCtrl, leavingHeaderCtrl, 1 - step);
          enter(leavingHeaderCtrl, enteringHeaderCtrl, 1 - step);
        } else {
          enter(enteringHeaderCtrl, leavingHeaderCtrl, step);
          leave(leavingHeaderCtrl, enteringHeaderCtrl, step);
        }
      },
      direction: direction,
      shouldAnimate: shouldAnimate && (direction == 'forward' || direction == 'back')
    };

    return d;
  };


  // Android Transitions
  // -----------------------

  provider.transitions.views.android = function(enteringEle, leavingEle, direction, shouldAnimate) {
    shouldAnimate = shouldAnimate && (direction == 'forward' || direction == 'back');

    function setStyles(ele, x) {
      var css = {};
      css[ionic.CSS.TRANSITION_DURATION] = d.shouldAnimate ? '' : 0;
      css[ionic.CSS.TRANSFORM] = 'translate3d(' + x + '%,0,0)';
      ionic.DomUtil.cachedStyles(ele, css);
    }

    var d = {
      run: function(step) {
        if (direction == 'forward') {
          setStyles(enteringEle, (1 - step) * 99); // starting at 98% prevents a flicker
          setStyles(leavingEle, step * -100);

        } else if (direction == 'back') {
          setStyles(enteringEle, (1 - step) * -100);
          setStyles(leavingEle, step * 100);

        } else {
          // swap, enter, exit
          setStyles(enteringEle, 0);
          setStyles(leavingEle, 0);
        }
      },
      shouldAnimate: shouldAnimate
    };

    return d;
  };

  provider.transitions.navBar.android = function(enteringHeaderBar, leavingHeaderBar, direction, shouldAnimate) {

    function setStyles(ctrl, opacity) {
      if (!ctrl) return;
      var css = {};
      css.opacity = opacity === 1 ? '' : opacity;

      ctrl.setCss('buttons-left', css);
      ctrl.setCss('buttons-right', css);
      ctrl.setCss('back-button', css);
      ctrl.setCss('back-text', css);
      ctrl.setCss('title', css);
    }

    return {
      run: function(step) {
        setStyles(enteringHeaderBar.controller(), step);
        setStyles(leavingHeaderBar && leavingHeaderBar.controller(), 1 - step);
      },
      shouldAnimate: shouldAnimate && (direction == 'forward' || direction == 'back')
    };
  };


  // No Transition
  // -----------------------

  provider.transitions.views.none = function(enteringEle, leavingEle) {
    return {
      run: function(step) {
        provider.transitions.views.android(enteringEle, leavingEle, false, false).run(step);
      },
      shouldAnimate: false
    };
  };

  provider.transitions.navBar.none = function(enteringHeaderBar, leavingHeaderBar) {
    return {
      run: function(step) {
        provider.transitions.navBar.ios(enteringHeaderBar, leavingHeaderBar, false, false).run(step);
        provider.transitions.navBar.android(enteringHeaderBar, leavingHeaderBar, false, false).run(step);
      },
      shouldAnimate: false
    };
  };


  // private: used to set platform configs
  function setPlatformConfig(platformName, platformConfigs) {
    configProperties.platform[platformName] = platformConfigs;
    provider.platform[platformName] = {};

    addConfig(configProperties, configProperties.platform[platformName]);

    createConfig(configProperties.platform[platformName], provider.platform[platformName], '');
  }


  // private: used to recursively add new platform configs
  function addConfig(configObj, platformObj) {
    for (var n in configObj) {
      if (n != PLATFORM && configObj.hasOwnProperty(n)) {
        if (angular.isObject(configObj[n])) {
          if (!isDefined(platformObj[n])) {
            platformObj[n] = {};
          }
          addConfig(configObj[n], platformObj[n]);

        } else if (!isDefined(platformObj[n])) {
          platformObj[n] = null;
        }
      }
    }
  }


  // private: create methods for each config to get/set
  function createConfig(configObj, providerObj, platformPath) {
    forEach(configObj, function(value, namespace) {

      if (angular.isObject(configObj[namespace])) {
        // recursively drill down the config object so we can create a method for each one
        providerObj[namespace] = {};
        createConfig(configObj[namespace], providerObj[namespace], platformPath + '.' + namespace);

      } else {
        // create a method for the provider/config methods that will be exposed
        providerObj[namespace] = function(newValue) {
          if (arguments.length) {
            configObj[namespace] = newValue;
            return providerObj;
          }
          if (configObj[namespace] == PLATFORM) {
            // if the config is set to 'platform', then get this config's platform value
            var platformConfig = stringObj(configProperties.platform, ionic.Platform.platform() + platformPath + '.' + namespace);
            if (platformConfig || platformConfig === false) {
              return platformConfig;
            }
            // didnt find a specific platform config, now try the default
            return stringObj(configProperties.platform, 'default' + platformPath + '.' + namespace);
          }
          return configObj[namespace];
        };
      }

    });
  }

  function stringObj(obj, str) {
    str = str.split(".");
    for (var i = 0; i < str.length; i++) {
      if (obj && isDefined(obj[str[i]])) {
        obj = obj[str[i]];
      } else {
        return null;
      }
    }
    return obj;
  }

  provider.setPlatformConfig = setPlatformConfig;


  // private: Service definition for internal Ionic use
  /**
   * @ngdoc service
   * @name $ionicConfig
   * @module ionic
   * @private
   */
  provider.$get = function() {
    return provider;
  };
});


var LOADING_TPL =
  '<div class="loading-container">' +
    '<div class="loading">' +
    '</div>' +
  '</div>';

var LOADING_HIDE_DEPRECATED = '$ionicLoading instance.hide() has been deprecated. Use $ionicLoading.hide().';
var LOADING_SHOW_DEPRECATED = '$ionicLoading instance.show() has been deprecated. Use $ionicLoading.show().';
var LOADING_SET_DEPRECATED = '$ionicLoading instance.setContent() has been deprecated. Use $ionicLoading.show({ template: \'my content\' }).';

/**
 * @ngdoc service
 * @name $ionicLoading
 * @module ionic
 * @description
 * An overlay that can be used to indicate activity while blocking user
 * interaction.
 *
 * @usage
 * ```js
 * angular.module('LoadingApp', ['ionic'])
 * .controller('LoadingCtrl', function($scope, $ionicLoading) {
 *   $scope.show = function() {
 *     $ionicLoading.show({
 *       template: 'Loading...'
 *     });
 *   };
 *   $scope.hide = function(){
 *     $ionicLoading.hide();
 *   };
 * });
 * ```
 */
/**
 * @ngdoc object
 * @name $ionicLoadingConfig
 * @module ionic
 * @description
 * Set the default options to be passed to the {@link ionic.service:$ionicLoading} service.
 *
 * @usage
 * ```js
 * var app = angular.module('myApp', ['ionic'])
 * app.constant('$ionicLoadingConfig', {
 *   template: 'Default Loading Template...'
 * });
 * app.controller('AppCtrl', function($scope, $ionicLoading) {
 *   $scope.showLoading = function() {
 *     $ionicLoading.show(); //options default to values in $ionicLoadingConfig
 *   };
 * });
 * ```
 */
IonicModule
.constant('$ionicLoadingConfig', {
  template: '<ion-spinner></ion-spinner>'
})
.factory('$ionicLoading', [
  '$ionicLoadingConfig',
  '$ionicBody',
  '$ionicTemplateLoader',
  '$ionicBackdrop',
  '$timeout',
  '$q',
  '$log',
  '$compile',
  '$ionicPlatform',
  '$rootScope',
function($ionicLoadingConfig, $ionicBody, $ionicTemplateLoader, $ionicBackdrop, $timeout, $q, $log, $compile, $ionicPlatform, $rootScope) {

  var loaderInstance;
  //default values
  var deregisterBackAction = noop;
  var deregisterStateListener1 = noop;
  var deregisterStateListener2 = noop;
  var loadingShowDelay = $q.when();

  return {
    /**
     * @ngdoc method
     * @name $ionicLoading#show
     * @description Shows a loading indicator. If the indicator is already shown,
     * it will set the options given and keep the indicator shown.
     * @param {object} opts The options for the loading indicator. Available properties:
     *  - `{string=}` `template` The html content of the indicator.
     *  - `{string=}` `templateUrl` The url of an html template to load as the content of the indicator.
     *  - `{object=}` `scope` The scope to be a child of. Default: creates a child of $rootScope.
     *  - `{boolean=}` `noBackdrop` Whether to hide the backdrop. By default it will be shown.
     *  - `{boolean=}` `hideOnStateChange` Whether to hide the loading spinner when navigating
     *    to a new state. Default false.
     *  - `{number=}` `delay` How many milliseconds to delay showing the indicator. By default there is no delay.
     *  - `{number=}` `duration` How many milliseconds to wait until automatically
     *  hiding the indicator. By default, the indicator will be shown until `.hide()` is called.
     */
    show: showLoader,
    /**
     * @ngdoc method
     * @name $ionicLoading#hide
     * @description Hides the loading indicator, if shown.
     */
    hide: hideLoader,
    /**
     * @private for testing
     */
    _getLoader: getLoader
  };

  function getLoader() {
    if (!loaderInstance) {
      loaderInstance = $ionicTemplateLoader.compile({
        template: LOADING_TPL,
        appendTo: $ionicBody.get()
      })
      .then(function(self) {
        self.show = function(options) {
          var templatePromise = options.templateUrl ?
            $ionicTemplateLoader.load(options.templateUrl) :
            //options.content: deprecated
            $q.when(options.template || options.content || '');

          self.scope = options.scope || self.scope;

          if (!self.isShown) {
            //options.showBackdrop: deprecated
            self.hasBackdrop = !options.noBackdrop && options.showBackdrop !== false;
            if (self.hasBackdrop) {
              $ionicBackdrop.retain();
              $ionicBackdrop.getElement().addClass('backdrop-loading');
            }
          }

          if (options.duration) {
            $timeout.cancel(self.durationTimeout);
            self.durationTimeout = $timeout(
              angular.bind(self, self.hide),
              +options.duration
            );
          }

          deregisterBackAction();
          //Disable hardware back button while loading
          deregisterBackAction = $ionicPlatform.registerBackButtonAction(
            noop,
            PLATFORM_BACK_BUTTON_PRIORITY_LOADING
          );

          templatePromise.then(function(html) {
            if (html) {
              var loading = self.element.children();
              loading.html(html);
              $compile(loading.contents())(self.scope);
            }

            //Don't show until template changes
            if (self.isShown) {
              self.element.addClass('visible');
              ionic.requestAnimationFrame(function() {
                if (self.isShown) {
                  self.element.addClass('active');
                  $ionicBody.addClass('loading-active');
                }
              });
            }
          });

          self.isShown = true;
        };
        self.hide = function() {

          deregisterBackAction();
          if (self.isShown) {
            if (self.hasBackdrop) {
              $ionicBackdrop.release();
              $ionicBackdrop.getElement().removeClass('backdrop-loading');
            }
            self.element.removeClass('active');
            $ionicBody.removeClass('loading-active');
            setTimeout(function() {
              !self.isShown && self.element.removeClass('visible');
            }, 200);
          }
          $timeout.cancel(self.durationTimeout);
          self.isShown = false;
        };

        return self;
      });
    }
    return loaderInstance;
  }

  function showLoader(options) {
    options = extend({}, $ionicLoadingConfig || {}, options || {});
    var delay = options.delay || options.showDelay || 0;

    deregisterStateListener1();
    deregisterStateListener2();
    if (options.hideOnStateChange) {
      deregisterStateListener1 = $rootScope.$on('$stateChangeSuccess', hideLoader);
      deregisterStateListener2 = $rootScope.$on('$stateChangeError', hideLoader);
    }

    //If loading.show() was called previously, cancel it and show with our new options
    $timeout.cancel(loadingShowDelay);
    loadingShowDelay = $timeout(noop, delay);
    loadingShowDelay.then(getLoader).then(function(loader) {
      return loader.show(options);
    });

    return {
      hide: deprecated.method(LOADING_HIDE_DEPRECATED, $log.error, hideLoader),
      show: deprecated.method(LOADING_SHOW_DEPRECATED, $log.error, function() {
        showLoader(options);
      }),
      setContent: deprecated.method(LOADING_SET_DEPRECATED, $log.error, function(content) {
        getLoader().then(function(loader) {
          loader.show({ template: content });
        });
      })
    };
  }

  function hideLoader() {
    deregisterStateListener1();
    deregisterStateListener2();
    $timeout.cancel(loadingShowDelay);
    getLoader().then(function(loader) {
      loader.hide();
    });
  }
}]);

/**
 * @ngdoc service
 * @name $ionicModal
 * @module ionic
 * @description
 *
 * Related: {@link ionic.controller:ionicModal ionicModal controller}.
 *
 * The Modal is a content pane that can go over the user's main view
 * temporarily.  Usually used for making a choice or editing an item.
 *
 * Put the content of the modal inside of an `<ion-modal-view>` element.
 *
 * **Notes:**
 * - A modal will broadcast 'modal.shown', 'modal.hidden', and 'modal.removed' events from its originating
 * scope, passing in itself as an event argument. Both the modal.removed and modal.hidden events are
 * called when the modal is removed.
 *
 * - This example assumes your modal is in your main index file or another template file. If it is in its own
 * template file, remove the script tags and call it by file name.
 *
 * @usage
 * ```html
 * <script id="my-modal.html" type="text/ng-template">
 *   <ion-modal-view>
 *     <ion-header-bar>
 *       <h1 class="title">My Modal title</h1>
 *     </ion-header-bar>
 *     <ion-content>
 *       Hello!
 *     </ion-content>
 *   </ion-modal-view>
 * </script>
 * ```
 * ```js
 * angular.module('testApp', ['ionic'])
 * .controller('MyController', function($scope, $ionicModal) {
 *   $ionicModal.fromTemplateUrl('my-modal.html', {
 *     scope: $scope,
 *     animation: 'slide-in-up'
 *   }).then(function(modal) {
 *     $scope.modal = modal;
 *   });
 *   $scope.openModal = function() {
 *     $scope.modal.show();
 *   };
 *   $scope.closeModal = function() {
 *     $scope.modal.hide();
 *   };
 *   //Cleanup the modal when we're done with it!
 *   $scope.$on('$destroy', function() {
 *     $scope.modal.remove();
 *   });
 *   // Execute action on hide modal
 *   $scope.$on('modal.hidden', function() {
 *     // Execute action
 *   });
 *   // Execute action on remove modal
 *   $scope.$on('modal.removed', function() {
 *     // Execute action
 *   });
 * });
 * ```
 */
IonicModule
.factory('$ionicModal', [
  '$rootScope',
  '$ionicBody',
  '$compile',
  '$timeout',
  '$ionicPlatform',
  '$ionicTemplateLoader',
  '$q',
  '$log',
function($rootScope, $ionicBody, $compile, $timeout, $ionicPlatform, $ionicTemplateLoader, $q, $log) {

  /**
   * @ngdoc controller
   * @name ionicModal
   * @module ionic
   * @description
   * Instantiated by the {@link ionic.service:$ionicModal} service.
   *
   * Be sure to call [remove()](#remove) when you are done with each modal
   * to clean it up and avoid memory leaks.
   *
   * Note: a modal will broadcast 'modal.shown', 'modal.hidden', and 'modal.removed' events from its originating
   * scope, passing in itself as an event argument. Note: both modal.removed and modal.hidden are
   * called when the modal is removed.
   */
  var ModalView = ionic.views.Modal.inherit({
    /**
     * @ngdoc method
     * @name ionicModal#initialize
     * @description Creates a new modal controller instance.
     * @param {object} options An options object with the following properties:
     *  - `{object=}` `scope` The scope to be a child of.
     *    Default: creates a child of $rootScope.
     *  - `{string=}` `animation` The animation to show & hide with.
     *    Default: 'slide-in-up'
     *  - `{boolean=}` `focusFirstInput` Whether to autofocus the first input of
     *    the modal when shown.  Default: false.
     *  - `{boolean=}` `backdropClickToClose` Whether to close the modal on clicking the backdrop.
     *    Default: true.
     *  - `{boolean=}` `hardwareBackButtonClose` Whether the modal can be closed using the hardware
     *    back button on Android and similar devices.  Default: true.
     */
    initialize: function(opts) {
      ionic.views.Modal.prototype.initialize.call(this, opts);
      this.animation = opts.animation || 'slide-in-up';
    },

    /**
     * @ngdoc method
     * @name ionicModal#show
     * @description Show this modal instance.
     * @returns {promise} A promise which is resolved when the modal is finished animating in.
     */
    show: function(target) {
      var self = this;

      if (self.scope.$$destroyed) {
        $log.error('Cannot call ' +  self.viewType + '.show() after remove(). Please create a new ' +  self.viewType + ' instance.');
        return;
      }

      var modalEl = jqLite(self.modalEl);

      self.el.classList.remove('hide');
      $timeout(function() {
        $ionicBody.addClass(self.viewType + '-open');
      }, 400);

      if (!self.el.parentElement) {
        modalEl.addClass(self.animation);
        $ionicBody.append(self.el);
      }

      if (target && self.positionView) {
        self.positionView(target, modalEl);
        // set up a listener for in case the window size changes
        ionic.on('resize',function() {
          ionic.off('resize',null,window);
          self.positionView(target,modalEl);
        },window);
      }

      modalEl.addClass('ng-enter active')
             .removeClass('ng-leave ng-leave-active');

      self._isShown = true;
      self._deregisterBackButton = $ionicPlatform.registerBackButtonAction(
        self.hardwareBackButtonClose ? angular.bind(self, self.hide) : noop,
        PLATFORM_BACK_BUTTON_PRIORITY_MODAL
      );

      ionic.views.Modal.prototype.show.call(self);

      $timeout(function() {
        modalEl.addClass('ng-enter-active');
        ionic.trigger('resize');
        self.scope.$parent && self.scope.$parent.$broadcast(self.viewType + '.shown', self);
        self.el.classList.add('active');
        self.scope.$broadcast('$ionicHeader.align');
      }, 20);

      return $timeout(function() {
        //After animating in, allow hide on backdrop click
        self.$el.on('click', function(e) {
          if (self.backdropClickToClose && e.target === self.el) {
            self.hide();
          }
        });
      }, 400);
    },

    /**
     * @ngdoc method
     * @name ionicModal#hide
     * @description Hide this modal instance.
     * @returns {promise} A promise which is resolved when the modal is finished animating out.
     */
    hide: function() {
      var self = this;
      var modalEl = jqLite(self.modalEl);

      self.el.classList.remove('active');
      modalEl.addClass('ng-leave');

      $timeout(function() {
        modalEl.addClass('ng-leave-active')
               .removeClass('ng-enter ng-enter-active active');
      }, 20);

      self.$el.off('click');
      self._isShown = false;
      self.scope.$parent && self.scope.$parent.$broadcast(self.viewType + '.hidden', self);
      self._deregisterBackButton && self._deregisterBackButton();

      ionic.views.Modal.prototype.hide.call(self);

      // clean up event listeners
      if (self.positionView) {
        ionic.off('resize',null,window);
      }

      return $timeout(function() {
        $ionicBody.removeClass(self.viewType + '-open');
        self.el.classList.add('hide');
      }, self.hideDelay || 320);
    },

    /**
     * @ngdoc method
     * @name ionicModal#remove
     * @description Remove this modal instance from the DOM and clean up.
     * @returns {promise} A promise which is resolved when the modal is finished animating out.
     */
    remove: function() {
      var self = this;
      self.scope.$parent && self.scope.$parent.$broadcast(self.viewType + '.removed', self);

      return self.hide().then(function() {
        self.scope.$destroy();
        self.$el.remove();
      });
    },

    /**
     * @ngdoc method
     * @name ionicModal#isShown
     * @returns boolean Whether this modal is currently shown.
     */
    isShown: function() {
      return !!this._isShown;
    }
  });

  var createModal = function(templateString, options) {
    // Create a new scope for the modal
    var scope = options.scope && options.scope.$new() || $rootScope.$new(true);

    options.viewType = options.viewType || 'modal';

    extend(scope, {
      $hasHeader: false,
      $hasSubheader: false,
      $hasFooter: false,
      $hasSubfooter: false,
      $hasTabs: false,
      $hasTabsTop: false
    });

    // Compile the template
    var element = $compile('<ion-' + options.viewType + '>' + templateString + '</ion-' + options.viewType + '>')(scope);

    options.$el = element;
    options.el = element[0];
    options.modalEl = options.el.querySelector('.' + options.viewType);
    var modal = new ModalView(options);

    modal.scope = scope;

    // If this wasn't a defined scope, we can assign the viewType to the isolated scope
    // we created
    if (!options.scope) {
      scope[ options.viewType ] = modal;
    }

    return modal;
  };

  return {
    /**
     * @ngdoc method
     * @name $ionicModal#fromTemplate
     * @param {string} templateString The template string to use as the modal's
     * content.
     * @param {object} options Options to be passed {@link ionic.controller:ionicModal#initialize ionicModal#initialize} method.
     * @returns {object} An instance of an {@link ionic.controller:ionicModal}
     * controller.
     */
    fromTemplate: function(templateString, options) {
      var modal = createModal(templateString, options || {});
      return modal;
    },
    /**
     * @ngdoc method
     * @name $ionicModal#fromTemplateUrl
     * @param {string} templateUrl The url to load the template from.
     * @param {object} options Options to be passed {@link ionic.controller:ionicModal#initialize ionicModal#initialize} method.
     * options object.
     * @returns {promise} A promise that will be resolved with an instance of
     * an {@link ionic.controller:ionicModal} controller.
     */
    fromTemplateUrl: function(url, options, _) {
      var cb;
      //Deprecated: allow a callback as second parameter. Now we return a promise.
      if (angular.isFunction(options)) {
        cb = options;
        options = _;
      }
      return $ionicTemplateLoader.load(url).then(function(templateString) {
        var modal = createModal(templateString, options || {});
        cb && cb(modal);
        return modal;
      });
    }
  };
}]);


/**
 * @ngdoc service
 * @name $ionicNavBarDelegate
 * @module ionic
 * @description
 * Delegate for controlling the {@link ionic.directive:ionNavBar} directive.
 *
 * @usage
 *
 * ```html
 * <body ng-controller="MyCtrl">
 *   <ion-nav-bar>
 *     <button ng-click="setNavTitle('banana')">
 *       Set title to banana!
 *     </button>
 *   </ion-nav-bar>
 * </body>
 * ```
 * ```js
 * function MyCtrl($scope, $ionicNavBarDelegate) {
 *   $scope.setNavTitle = function(title) {
 *     $ionicNavBarDelegate.title(title);
 *   }
 * }
 * ```
 */
IonicModule
.service('$ionicNavBarDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicNavBarDelegate#align
   * @description Aligns the title with the buttons in a given direction.
   * @param {string=} direction The direction to the align the title text towards.
   * Available: 'left', 'right', 'center'. Default: 'center'.
   */
  'align',
  /**
   * @ngdoc method
   * @name $ionicNavBarDelegate#showBackButton
   * @description
   * Set/get whether the {@link ionic.directive:ionNavBackButton} is shown
   * (if it exists and there is a previous view that can be navigated to).
   * @param {boolean=} show Whether to show the back button.
   * @returns {boolean} Whether the back button is shown.
   */
  'showBackButton',
  /**
   * @ngdoc method
   * @name $ionicNavBarDelegate#showBar
   * @description
   * Set/get whether the {@link ionic.directive:ionNavBar} is shown.
   * @param {boolean} show Whether to show the bar.
   * @returns {boolean} Whether the bar is shown.
   */
  'showBar',
  /**
   * @ngdoc method
   * @name $ionicNavBarDelegate#title
   * @description
   * Set the title for the {@link ionic.directive:ionNavBar}.
   * @param {string} title The new title to show.
   */
  'title',

  // DEPRECATED, as of v1.0.0-beta14 -------
  'changeTitle',
  'setTitle',
  'getTitle',
  'back',
  'getPreviousTitle'
  // END DEPRECATED -------
]));


IonicModule
.service('$ionicNavViewDelegate', ionic.DelegateService([
  'clearCache'
]));


var PLATFORM_BACK_BUTTON_PRIORITY_VIEW = 100;
var PLATFORM_BACK_BUTTON_PRIORITY_SIDE_MENU = 150;
var PLATFORM_BACK_BUTTON_PRIORITY_MODAL = 200;
var PLATFORM_BACK_BUTTON_PRIORITY_ACTION_SHEET = 300;
var PLATFORM_BACK_BUTTON_PRIORITY_POPUP = 400;
var PLATFORM_BACK_BUTTON_PRIORITY_LOADING = 500;

/**
 * @ngdoc service
 * @name $ionicPlatform
 * @module ionic
 * @description
 * An angular abstraction of {@link ionic.utility:ionic.Platform}.
 *
 * Used to detect the current platform, as well as do things like override the
 * Android back button in PhoneGap/Cordova.
 */
IonicModule
.provider('$ionicPlatform', function() {
  return {
    $get: ['$q', '$rootScope', function($q, $rootScope) {
      var self = {

        /**
         * @ngdoc method
         * @name $ionicPlatform#onHardwareBackButton
         * @description
         * Some platforms have a hardware back button, so this is one way to
         * bind to it.
         * @param {function} callback the callback to trigger when this event occurs
         */
        onHardwareBackButton: function(cb) {
          ionic.Platform.ready(function() {
            document.addEventListener('backbutton', cb, false);
          });
        },

        /**
         * @ngdoc method
         * @name $ionicPlatform#offHardwareBackButton
         * @description
         * Remove an event listener for the backbutton.
         * @param {function} callback The listener function that was
         * originally bound.
         */
        offHardwareBackButton: function(fn) {
          ionic.Platform.ready(function() {
            document.removeEventListener('backbutton', fn);
          });
        },

        /**
         * @ngdoc method
         * @name $ionicPlatform#registerBackButtonAction
         * @description
         * Register a hardware back button action. Only one action will execute
         * when the back button is clicked, so this method decides which of
         * the registered back button actions has the highest priority.
         *
         * For example, if an actionsheet is showing, the back button should
         * close the actionsheet, but it should not also go back a page view
         * or close a modal which may be open.
         *
         * The priorities for the existing back button hooks are as follows:
         *   Return to previous view = 100
         *   Close side menu = 150
         *   Dismiss modal = 200
         *   Close action sheet = 300
         *   Dismiss popup = 400
         *   Dismiss loading overlay = 500
         * 
         * Your back button action will override each of the above actions
         * whose priority is less than the priority you provide. For example,
         * an action assigned a priority of 101 will override the 'return to
         * previous view' action, but not any of the other actions.
         * 
         * @param {function} callback Called when the back button is pressed,
         * if this listener is the highest priority.
         * @param {number} priority Only the highest priority will execute.
         * @param {*=} actionId The id to assign this action. Default: a
         * random unique id.
         * @returns {function} A function that, when called, will deregister
         * this backButtonAction.
         */
        $backButtonActions: {},
        registerBackButtonAction: function(fn, priority, actionId) {

          if (!self._hasBackButtonHandler) {
            // add a back button listener if one hasn't been setup yet
            self.$backButtonActions = {};
            self.onHardwareBackButton(self.hardwareBackButtonClick);
            self._hasBackButtonHandler = true;
          }

          var action = {
            id: (actionId ? actionId : ionic.Utils.nextUid()),
            priority: (priority ? priority : 0),
            fn: fn
          };
          self.$backButtonActions[action.id] = action;

          // return a function to de-register this back button action
          return function() {
            delete self.$backButtonActions[action.id];
          };
        },

        /**
         * @private
         */
        hardwareBackButtonClick: function(e) {
          // loop through all the registered back button actions
          // and only run the last one of the highest priority
          var priorityAction, actionId;
          for (actionId in self.$backButtonActions) {
            if (!priorityAction || self.$backButtonActions[actionId].priority >= priorityAction.priority) {
              priorityAction = self.$backButtonActions[actionId];
            }
          }
          if (priorityAction) {
            priorityAction.fn(e);
            return priorityAction;
          }
        },

        is: function(type) {
          return ionic.Platform.is(type);
        },

        /**
         * @ngdoc method
         * @name $ionicPlatform#on
         * @description
         * Add Cordova event listeners, such as `pause`, `resume`, `volumedownbutton`, `batterylow`,
         * `offline`, etc. More information about available event types can be found in
         * [Cordova's event documentation](https://cordova.apache.org/docs/en/edge/cordova_events_events.md.html#Events).
         * @param {string} type Cordova [event type](https://cordova.apache.org/docs/en/edge/cordova_events_events.md.html#Events).
         * @param {function} callback Called when the Cordova event is fired.
         * @returns {function} Returns a deregistration function to remove the event listener.
         */
        on: function(type, cb) {
          ionic.Platform.ready(function() {
            document.addEventListener(type, cb, false);
          });
          return function() {
            ionic.Platform.ready(function() {
              document.removeEventListener(type, cb);
            });
          };
        },

        /**
         * @ngdoc method
         * @name $ionicPlatform#ready
         * @description
         * Trigger a callback once the device is ready,
         * or immediately if the device is already ready.
         * @param {function=} callback The function to call.
         * @returns {promise} A promise which is resolved when the device is ready.
         */
        ready: function(cb) {
          var q = $q.defer();

          ionic.Platform.ready(function() {
            q.resolve();
            cb && cb();
          });

          return q.promise;
        }
      };
      return self;
    }]
  };

});

/**
 * @ngdoc service
 * @name $ionicPopover
 * @module ionic
 * @description
 *
 * Related: {@link ionic.controller:ionicPopover ionicPopover controller}.
 *
 * The Popover is a view that floats above an app’s content. Popovers provide an
 * easy way to present or gather information from the user and are
 * commonly used in the following situations:
 *
 * - Show more info about the current view
 * - Select a commonly used tool or configuration
 * - Present a list of actions to perform inside one of your views
 *
 * Put the content of the popover inside of an `<ion-popover-view>` element.
 *
 * @usage
 * ```html
 * <p>
 *   <button ng-click="openPopover($event)">Open Popover</button>
 * </p>
 *
 * <script id="my-popover.html" type="text/ng-template">
 *   <ion-popover-view>
 *     <ion-header-bar>
 *       <h1 class="title">My Popover Title</h1>
 *     </ion-header-bar>
 *     <ion-content>
 *       Hello!
 *     </ion-content>
 *   </ion-popover-view>
 * </script>
 * ```
 * ```js
 * angular.module('testApp', ['ionic'])
 * .controller('MyController', function($scope, $ionicPopover) {
 *
 *   // .fromTemplate() method
 *   var template = '<ion-popover-view><ion-header-bar> <h1 class="title">My Popover Title</h1> </ion-header-bar> <ion-content> Hello! </ion-content></ion-popover-view>';
 *
 *   $scope.popover = $ionicPopover.fromTemplate(template, {
 *     scope: $scope
 *   });
 *
 *   // .fromTemplateUrl() method
 *   $ionicPopover.fromTemplateUrl('my-popover.html', {
 *     scope: $scope
 *   }).then(function(popover) {
 *     $scope.popover = popover;
 *   });
 *
 *
 *   $scope.openPopover = function($event) {
 *     $scope.popover.show($event);
 *   };
 *   $scope.closePopover = function() {
 *     $scope.popover.hide();
 *   };
 *   //Cleanup the popover when we're done with it!
 *   $scope.$on('$destroy', function() {
 *     $scope.popover.remove();
 *   });
 *   // Execute action on hide popover
 *   $scope.$on('popover.hidden', function() {
 *     // Execute action
 *   });
 *   // Execute action on remove popover
 *   $scope.$on('popover.removed', function() {
 *     // Execute action
 *   });
 * });
 * ```
 */


IonicModule
.factory('$ionicPopover', ['$ionicModal', '$ionicPosition', '$document', '$window',
function($ionicModal, $ionicPosition, $document, $window) {

  var POPOVER_BODY_PADDING = 6;

  var POPOVER_OPTIONS = {
    viewType: 'popover',
    hideDelay: 1,
    animation: 'none',
    positionView: positionView
  };

  function positionView(target, popoverEle) {
    var targetEle = jqLite(target.target || target);
    var buttonOffset = $ionicPosition.offset(targetEle);
    var popoverWidth = popoverEle.prop('offsetWidth');
    var popoverHeight = popoverEle.prop('offsetHeight');
    var bodyWidth = $document[0].body.clientWidth;
    // clientHeight doesn't work on all platforms for body
    var bodyHeight = $window.innerHeight;

    var popoverCSS = {
      left: buttonOffset.left + buttonOffset.width / 2 - popoverWidth / 2
    };
    var arrowEle = jqLite(popoverEle[0].querySelector('.popover-arrow'));

    if (popoverCSS.left < POPOVER_BODY_PADDING) {
      popoverCSS.left = POPOVER_BODY_PADDING;
    } else if (popoverCSS.left + popoverWidth + POPOVER_BODY_PADDING > bodyWidth) {
      popoverCSS.left = bodyWidth - popoverWidth - POPOVER_BODY_PADDING;
    }

    // If the popover when popped down stretches past bottom of screen,
    // make it pop up if there's room above
    if (buttonOffset.top + buttonOffset.height + popoverHeight > bodyHeight &&
        buttonOffset.top - popoverHeight > 0) {
      popoverCSS.top = buttonOffset.top - popoverHeight;
      popoverEle.addClass('popover-bottom');
    } else {
      popoverCSS.top = buttonOffset.top + buttonOffset.height;
      popoverEle.removeClass('popover-bottom');
    }

    arrowEle.css({
      left: buttonOffset.left + buttonOffset.width / 2 -
        arrowEle.prop('offsetWidth') / 2 - popoverCSS.left + 'px'
    });

    popoverEle.css({
      top: popoverCSS.top + 'px',
      left: popoverCSS.left + 'px',
      marginLeft: '0',
      opacity: '1'
    });

  }

  /**
   * @ngdoc controller
   * @name ionicPopover
   * @module ionic
   * @description
   * Instantiated by the {@link ionic.service:$ionicPopover} service.
   *
   * Be sure to call [remove()](#remove) when you are done with each popover
   * to clean it up and avoid memory leaks.
   *
   * Note: a popover will broadcast 'popover.shown', 'popover.hidden', and 'popover.removed' events from its originating
   * scope, passing in itself as an event argument. Both the popover.removed and popover.hidden events are
   * called when the popover is removed.
   */

  /**
   * @ngdoc method
   * @name ionicPopover#initialize
   * @description Creates a new popover controller instance.
   * @param {object} options An options object with the following properties:
   *  - `{object=}` `scope` The scope to be a child of.
   *    Default: creates a child of $rootScope.
   *  - `{boolean=}` `focusFirstInput` Whether to autofocus the first input of
   *    the popover when shown.  Default: false.
   *  - `{boolean=}` `backdropClickToClose` Whether to close the popover on clicking the backdrop.
   *    Default: true.
   *  - `{boolean=}` `hardwareBackButtonClose` Whether the popover can be closed using the hardware
   *    back button on Android and similar devices.  Default: true.
   */

  /**
   * @ngdoc method
   * @name ionicPopover#show
   * @description Show this popover instance.
   * @param {$event} $event The $event or target element which the popover should align
   * itself next to.
   * @returns {promise} A promise which is resolved when the popover is finished animating in.
   */

  /**
   * @ngdoc method
   * @name ionicPopover#hide
   * @description Hide this popover instance.
   * @returns {promise} A promise which is resolved when the popover is finished animating out.
   */

  /**
   * @ngdoc method
   * @name ionicPopover#remove
   * @description Remove this popover instance from the DOM and clean up.
   * @returns {promise} A promise which is resolved when the popover is finished animating out.
   */

  /**
   * @ngdoc method
   * @name ionicPopover#isShown
   * @returns boolean Whether this popover is currently shown.
   */

  return {
    /**
     * @ngdoc method
     * @name $ionicPopover#fromTemplate
     * @param {string} templateString The template string to use as the popovers's
     * content.
     * @param {object} options Options to be passed to the initialize method.
     * @returns {object} An instance of an {@link ionic.controller:ionicPopover}
     * controller (ionicPopover is built on top of $ionicPopover).
     */
    fromTemplate: function(templateString, options) {
      return $ionicModal.fromTemplate(templateString, ionic.Utils.extend(POPOVER_OPTIONS, options || {}));
    },
    /**
     * @ngdoc method
     * @name $ionicPopover#fromTemplateUrl
     * @param {string} templateUrl The url to load the template from.
     * @param {object} options Options to be passed to the initialize method.
     * @returns {promise} A promise that will be resolved with an instance of
     * an {@link ionic.controller:ionicPopover} controller (ionicPopover is built on top of $ionicPopover).
     */
    fromTemplateUrl: function(url, options) {
      return $ionicModal.fromTemplateUrl(url, ionic.Utils.extend(POPOVER_OPTIONS, options || {}));
    }
  };

}]);


var POPUP_TPL =
  '<div class="popup-container" ng-class="cssClass">' +
    '<div class="popup">' +
      '<div class="popup-head">' +
        '<h3 class="popup-title" ng-bind-html="title"></h3>' +
        '<h5 class="popup-sub-title" ng-bind-html="subTitle" ng-if="subTitle"></h5>' +
      '</div>' +
      '<div class="popup-body">' +
      '</div>' +
      '<div class="popup-buttons" ng-show="buttons.length">' +
        '<button ng-repeat="button in buttons" ng-click="$buttonTapped(button, $event)" class="button" ng-class="button.type || \'button-default\'" ng-bind-html="button.text"></button>' +
      '</div>' +
    '</div>' +
  '</div>';

/**
 * @ngdoc service
 * @name $ionicPopup
 * @module ionic
 * @restrict E
 * @codepen zkmhJ
 * @description
 *
 * The Ionic Popup service allows programmatically creating and showing popup
 * windows that require the user to respond in order to continue.
 *
 * The popup system has support for more flexible versions of the built in `alert()`, `prompt()`,
 * and `confirm()` functions that users are used to, in addition to allowing popups with completely
 * custom content and look.
 *
 * An input can be given an `autofocus` attribute so it automatically receives focus when
 * the popup first shows. However, depending on certain use-cases this can cause issues with
 * the tap/click system, which is why Ionic prefers using the `autofocus` attribute as
 * an opt-in feature and not the default.
 *
 * @usage
 * A few basic examples, see below for details about all of the options available.
 *
 * ```js
 *angular.module('mySuperApp', ['ionic'])
 *.controller('PopupCtrl',function($scope, $ionicPopup, $timeout) {
 *
 * // Triggered on a button click, or some other target
 * $scope.showPopup = function() {
 *   $scope.data = {}
 *
 *   // An elaborate, custom popup
 *   var myPopup = $ionicPopup.show({
 *     template: '<input type="password" ng-model="data.wifi">',
 *     title: 'Enter Wi-Fi Password',
 *     subTitle: 'Please use normal things',
 *     scope: $scope,
 *     buttons: [
 *       { text: 'Cancel' },
 *       {
 *         text: '<b>Save</b>',
 *         type: 'button-positive',
 *         onTap: function(e) {
 *           if (!$scope.data.wifi) {
 *             //don't allow the user to close unless he enters wifi password
 *             e.preventDefault();
 *           } else {
 *             return $scope.data.wifi;
 *           }
 *         }
 *       }
 *     ]
 *   });
 *   myPopup.then(function(res) {
 *     console.log('Tapped!', res);
 *   });
 *   $timeout(function() {
 *      myPopup.close(); //close the popup after 3 seconds for some reason
 *   }, 3000);
 *  };
 *  // A confirm dialog
 *  $scope.showConfirm = function() {
 *    var confirmPopup = $ionicPopup.confirm({
 *      title: 'Consume Ice Cream',
 *      template: 'Are you sure you want to eat this ice cream?'
 *    });
 *    confirmPopup.then(function(res) {
 *      if(res) {
 *        console.log('You are sure');
 *      } else {
 *        console.log('You are not sure');
 *      }
 *    });
 *  };
 *
 *  // An alert dialog
 *  $scope.showAlert = function() {
 *    var alertPopup = $ionicPopup.alert({
 *      title: 'Don\'t eat that!',
 *      template: 'It might taste good'
 *    });
 *    alertPopup.then(function(res) {
 *      console.log('Thank you for not eating my delicious ice cream cone');
 *    });
 *  };
 *});
 *```
 */

IonicModule
.factory('$ionicPopup', [
  '$ionicTemplateLoader',
  '$ionicBackdrop',
  '$q',
  '$timeout',
  '$rootScope',
  '$ionicBody',
  '$compile',
  '$ionicPlatform',
function($ionicTemplateLoader, $ionicBackdrop, $q, $timeout, $rootScope, $ionicBody, $compile, $ionicPlatform) {
  //TODO allow this to be configured
  var config = {
    stackPushDelay: 75
  };
  var popupStack = [];
  var $ionicPopup = {
    /**
     * @ngdoc method
     * @description
     * Show a complex popup. This is the master show function for all popups.
     *
     * A complex popup has a `buttons` array, with each button having a `text` and `type`
     * field, in addition to an `onTap` function.  The `onTap` function, called when
     * the corresponding button on the popup is tapped, will by default close the popup
     * and resolve the popup promise with its return value.  If you wish to prevent the
     * default and keep the popup open on button tap, call `event.preventDefault()` on the
     * passed in tap event.  Details below.
     *
     * @name $ionicPopup#show
     * @param {object} options The options for the new popup, of the form:
     *
     * ```
     * {
     *   title: '', // String. The title of the popup.
     *   cssClass: '', // String, The custom CSS class name
     *   subTitle: '', // String (optional). The sub-title of the popup.
     *   template: '', // String (optional). The html template to place in the popup body.
     *   templateUrl: '', // String (optional). The URL of an html template to place in the popup   body.
     *   scope: null, // Scope (optional). A scope to link to the popup content.
     *   buttons: [{ // Array[Object] (optional). Buttons to place in the popup footer.
     *     text: 'Cancel',
     *     type: 'button-default',
     *     onTap: function(e) {
     *       // e.preventDefault() will stop the popup from closing when tapped.
     *       e.preventDefault();
     *     }
     *   }, {
     *     text: 'OK',
     *     type: 'button-positive',
     *     onTap: function(e) {
     *       // Returning a value will cause the promise to resolve with the given value.
     *       return scope.data.response;
     *     }
     *   }]
     * }
     * ```
     *
     * @returns {object} A promise which is resolved when the popup is closed. Has an additional
     * `close` function, which can be used to programmatically close the popup.
     */
    show: showPopup,

    /**
     * @ngdoc method
     * @name $ionicPopup#alert
     * @description Show a simple alert popup with a message and one button that the user can
     * tap to close the popup.
     *
     * @param {object} options The options for showing the alert, of the form:
     *
     * ```
     * {
     *   title: '', // String. The title of the popup.
     *   cssClass: '', // String, The custom CSS class name
     *   subTitle: '', // String (optional). The sub-title of the popup.
     *   template: '', // String (optional). The html template to place in the popup body.
     *   templateUrl: '', // String (optional). The URL of an html template to place in the popup   body.
     *   okText: '', // String (default: 'OK'). The text of the OK button.
     *   okType: '', // String (default: 'button-positive'). The type of the OK button.
     * }
     * ```
     *
     * @returns {object} A promise which is resolved when the popup is closed. Has one additional
     * function `close`, which can be called with any value to programmatically close the popup
     * with the given value.
     */
    alert: showAlert,

    /**
     * @ngdoc method
     * @name $ionicPopup#confirm
     * @description
     * Show a simple confirm popup with a Cancel and OK button.
     *
     * Resolves the promise with true if the user presses the OK button, and false if the
     * user presses the Cancel button.
     *
     * @param {object} options The options for showing the confirm popup, of the form:
     *
     * ```
     * {
     *   title: '', // String. The title of the popup.
     *   cssClass: '', // String, The custom CSS class name
     *   subTitle: '', // String (optional). The sub-title of the popup.
     *   template: '', // String (optional). The html template to place in the popup body.
     *   templateUrl: '', // String (optional). The URL of an html template to place in the popup   body.
     *   cancelText: '', // String (default: 'Cancel'). The text of the Cancel button.
     *   cancelType: '', // String (default: 'button-default'). The type of the Cancel button.
     *   okText: '', // String (default: 'OK'). The text of the OK button.
     *   okType: '', // String (default: 'button-positive'). The type of the OK button.
     * }
     * ```
     *
     * @returns {object} A promise which is resolved when the popup is closed. Has one additional
     * function `close`, which can be called with any value to programmatically close the popup
     * with the given value.
     */
    confirm: showConfirm,

    /**
     * @ngdoc method
     * @name $ionicPopup#prompt
     * @description Show a simple prompt popup, which has an input, OK button, and Cancel button.
     * Resolves the promise with the value of the input if the user presses OK, and with undefined
     * if the user presses Cancel.
     *
     * ```javascript
     *  $ionicPopup.prompt({
     *    title: 'Password Check',
     *    template: 'Enter your secret password',
     *    inputType: 'password',
     *    inputPlaceholder: 'Your password'
     *  }).then(function(res) {
     *    console.log('Your password is', res);
     *  });
     * ```
     * @param {object} options The options for showing the prompt popup, of the form:
     *
     * ```
     * {
     *   title: '', // String. The title of the popup.
     *   cssClass: '', // String, The custom CSS class name
     *   subTitle: '', // String (optional). The sub-title of the popup.
     *   template: '', // String (optional). The html template to place in the popup body.
     *   templateUrl: '', // String (optional). The URL of an html template to place in the popup   body.
     *   inputType: // String (default: 'text'). The type of input to use
     *   inputPlaceholder: // String (default: ''). A placeholder to use for the input.
     *   cancelText: // String (default: 'Cancel'. The text of the Cancel button.
     *   cancelType: // String (default: 'button-default'). The type of the Cancel button.
     *   okText: // String (default: 'OK'). The text of the OK button.
     *   okType: // String (default: 'button-positive'). The type of the OK button.
     * }
     * ```
     *
     * @returns {object} A promise which is resolved when the popup is closed. Has one additional
     * function `close`, which can be called with any value to programmatically close the popup
     * with the given value.
     */
    prompt: showPrompt,
    /**
     * @private for testing
     */
    _createPopup: createPopup,
    _popupStack: popupStack
  };

  return $ionicPopup;

  function createPopup(options) {
    options = extend({
      scope: null,
      title: '',
      buttons: []
    }, options || {});

    var popupPromise = $ionicTemplateLoader.compile({
      template: POPUP_TPL,
      scope: options.scope && options.scope.$new(),
      appendTo: $ionicBody.get()
    });
    var contentPromise = options.templateUrl ?
      $ionicTemplateLoader.load(options.templateUrl) :
      $q.when(options.template || options.content || '');

    return $q.all([popupPromise, contentPromise])
    .then(function(results) {
      var self = results[0];
      var content = results[1];
      var responseDeferred = $q.defer();

      self.responseDeferred = responseDeferred;

      //Can't ng-bind-html for popup-body because it can be insecure html
      //(eg an input in case of prompt)
      var body = jqLite(self.element[0].querySelector('.popup-body'));
      if (content) {
        body.html(content);
        $compile(body.contents())(self.scope);
      } else {
        body.remove();
      }

      extend(self.scope, {
        title: options.title,
        buttons: options.buttons,
        subTitle: options.subTitle,
        cssClass: options.cssClass,
        $buttonTapped: function(button, event) {
          var result = (button.onTap || noop)(event);
          event = event.originalEvent || event; //jquery events

          if (!event.defaultPrevented) {
            responseDeferred.resolve(result);
          }
        }
      });

      self.show = function() {
        if (self.isShown) return;

        self.isShown = true;
        ionic.requestAnimationFrame(function() {
          //if hidden while waiting for raf, don't show
          if (!self.isShown) return;

          self.element.removeClass('popup-hidden');
          self.element.addClass('popup-showing active');
          focusInput(self.element);
        });
      };
      self.hide = function(callback) {
        callback = callback || noop;
        if (!self.isShown) return callback();

        self.isShown = false;
        self.element.removeClass('active');
        self.element.addClass('popup-hidden');
        $timeout(callback, 250);
      };
      self.remove = function() {
        if (self.removed) return;

        self.hide(function() {
          self.element.remove();
          self.scope.$destroy();
        });

        self.removed = true;
      };

      return self;
    });
  }

  function onHardwareBackButton(e) {
    popupStack[0] && popupStack[0].responseDeferred.resolve();
  }

  function showPopup(options) {
    var popupPromise = $ionicPopup._createPopup(options);
    var previousPopup = popupStack[0];

    if (previousPopup) {
      previousPopup.hide();
    }

    var resultPromise = $timeout(noop, previousPopup ? config.stackPushDelay : 0)
    .then(function() { return popupPromise; })
    .then(function(popup) {
      if (!previousPopup) {
        //Add popup-open & backdrop if this is first popup
        $ionicBody.addClass('popup-open');
        $ionicBackdrop.retain();
        //only show the backdrop on the first popup
        $ionicPopup._backButtonActionDone = $ionicPlatform.registerBackButtonAction(
          onHardwareBackButton,
          PLATFORM_BACK_BUTTON_PRIORITY_POPUP
        );
      }
      popupStack.unshift(popup);
      popup.show();

      //DEPRECATED: notify the promise with an object with a close method
      popup.responseDeferred.notify({
        close: resultPromise.close
      });

      return popup.responseDeferred.promise.then(function(result) {
        var index = popupStack.indexOf(popup);
        if (index !== -1) {
          popupStack.splice(index, 1);
        }
        popup.remove();

        var previousPopup = popupStack[0];
        if (previousPopup) {
          previousPopup.show();
        } else {
          //Remove popup-open & backdrop if this is last popup
          $timeout(function() {
            // wait to remove this due to a 300ms delay native
            // click which would trigging whatever was underneath this
            $ionicBody.removeClass('popup-open');
          }, 400);
          $timeout(function() {
            $ionicBackdrop.release();
          }, config.stackPushDelay || 0);
          ($ionicPopup._backButtonActionDone || noop)();
        }
        return result;
      });
    });

    function close(result) {
      popupPromise.then(function(popup) {
        if (!popup.removed) {
          popup.responseDeferred.resolve(result);
        }
      });
    }
    resultPromise.close = close;

    return resultPromise;
  }

  function focusInput(element) {
    var focusOn = element[0].querySelector('[autofocus]');
    if (focusOn) {
      focusOn.focus();
    }
  }

  function showAlert(opts) {
    return showPopup(extend({
      buttons: [{
        text: opts.okText || 'OK',
        type: opts.okType || 'button-positive',
        onTap: function(e) {
          return true;
        }
      }]
    }, opts || {}));
  }

  function showConfirm(opts) {
    return showPopup(extend({
      buttons: [{
        text: opts.cancelText || 'Cancel',
        type: opts.cancelType || 'button-default',
        onTap: function(e) { return false; }
      }, {
        text: opts.okText || 'OK',
        type: opts.okType || 'button-positive',
        onTap: function(e) { return true; }
      }]
    }, opts || {}));
  }

  function showPrompt(opts) {
    var scope = $rootScope.$new(true);
    scope.data = {};
    var text = '';
    if (opts.template && /<[a-z][\s\S]*>/i.test(opts.template) === false) {
      text = '<span>' + opts.template + '</span>';
      delete opts.template;
    }
    return showPopup(extend({
      template: text + '<input ng-model="data.response" type="' + (opts.inputType || 'text') +
        '" placeholder="' + (opts.inputPlaceholder || '') + '">',
      scope: scope,
      buttons: [{
        text: opts.cancelText || 'Cancel',
        type: opts.cancelType || 'button-default',
        onTap: function(e) {}
      }, {
        text: opts.okText || 'OK',
        type: opts.okType || 'button-positive',
        onTap: function(e) {
          return scope.data.response || '';
        }
      }]
    }, opts || {}));
  }
}]);

/**
 * @ngdoc service
 * @name $ionicPosition
 * @module ionic
 * @description
 * A set of utility methods that can be use to retrieve position of DOM elements.
 * It is meant to be used where we need to absolute-position DOM elements in
 * relation to other, existing elements (this is the case for tooltips, popovers, etc.).
 *
 * Adapted from [AngularUI Bootstrap](https://github.com/angular-ui/bootstrap/blob/master/src/position/position.js),
 * ([license](https://github.com/angular-ui/bootstrap/blob/master/LICENSE))
 */
IonicModule
.factory('$ionicPosition', ['$document', '$window', function($document, $window) {

  function getStyle(el, cssprop) {
    if (el.currentStyle) { //IE
      return el.currentStyle[cssprop];
    } else if ($window.getComputedStyle) {
      return $window.getComputedStyle(el)[cssprop];
    }
    // finally try and get inline style
    return el.style[cssprop];
  }

  /**
   * Checks if a given element is statically positioned
   * @param element - raw DOM element
   */
  function isStaticPositioned(element) {
    return (getStyle(element, 'position') || 'static') === 'static';
  }

  /**
   * returns the closest, non-statically positioned parentOffset of a given element
   * @param element
   */
  var parentOffsetEl = function(element) {
    var docDomEl = $document[0];
    var offsetParent = element.offsetParent || docDomEl;
    while (offsetParent && offsetParent !== docDomEl && isStaticPositioned(offsetParent)) {
      offsetParent = offsetParent.offsetParent;
    }
    return offsetParent || docDomEl;
  };

  return {
    /**
     * @ngdoc method
     * @name $ionicPosition#position
     * @description Get the current coordinates of the element, relative to the offset parent.
     * Read-only equivalent of [jQuery's position function](http://api.jquery.com/position/).
     * @param {element} element The element to get the position of.
     * @returns {object} Returns an object containing the properties top, left, width and height.
     */
    position: function(element) {
      var elBCR = this.offset(element);
      var offsetParentBCR = { top: 0, left: 0 };
      var offsetParentEl = parentOffsetEl(element[0]);
      if (offsetParentEl != $document[0]) {
        offsetParentBCR = this.offset(jqLite(offsetParentEl));
        offsetParentBCR.top += offsetParentEl.clientTop - offsetParentEl.scrollTop;
        offsetParentBCR.left += offsetParentEl.clientLeft - offsetParentEl.scrollLeft;
      }

      var boundingClientRect = element[0].getBoundingClientRect();
      return {
        width: boundingClientRect.width || element.prop('offsetWidth'),
        height: boundingClientRect.height || element.prop('offsetHeight'),
        top: elBCR.top - offsetParentBCR.top,
        left: elBCR.left - offsetParentBCR.left
      };
    },

    /**
     * @ngdoc method
     * @name $ionicPosition#offset
     * @description Get the current coordinates of the element, relative to the document.
     * Read-only equivalent of [jQuery's offset function](http://api.jquery.com/offset/).
     * @param {element} element The element to get the offset of.
     * @returns {object} Returns an object containing the properties top, left, width and height.
     */
    offset: function(element) {
      var boundingClientRect = element[0].getBoundingClientRect();
      return {
        width: boundingClientRect.width || element.prop('offsetWidth'),
        height: boundingClientRect.height || element.prop('offsetHeight'),
        top: boundingClientRect.top + ($window.pageYOffset || $document[0].documentElement.scrollTop),
        left: boundingClientRect.left + ($window.pageXOffset || $document[0].documentElement.scrollLeft)
      };
    }

  };
}]);


/**
 * @ngdoc service
 * @name $ionicScrollDelegate
 * @module ionic
 * @description
 * Delegate for controlling scrollViews (created by
 * {@link ionic.directive:ionContent} and
 * {@link ionic.directive:ionScroll} directives).
 *
 * Methods called directly on the $ionicScrollDelegate service will control all scroll
 * views.  Use the {@link ionic.service:$ionicScrollDelegate#$getByHandle $getByHandle}
 * method to control specific scrollViews.
 *
 * @usage
 *
 * ```html
 * <body ng-controller="MainCtrl">
 *   <ion-content>
 *     <button ng-click="scrollTop()">Scroll to Top!</button>
 *   </ion-content>
 * </body>
 * ```
 * ```js
 * function MainCtrl($scope, $ionicScrollDelegate) {
 *   $scope.scrollTop = function() {
 *     $ionicScrollDelegate.scrollTop();
 *   };
 * }
 * ```
 *
 * Example of advanced usage, with two scroll areas using `delegate-handle`
 * for fine control.
 *
 * ```html
 * <body ng-controller="MainCtrl">
 *   <ion-content delegate-handle="mainScroll">
 *     <button ng-click="scrollMainToTop()">
 *       Scroll content to top!
 *     </button>
 *     <ion-scroll delegate-handle="small" style="height: 100px;">
 *       <button ng-click="scrollSmallToTop()">
 *         Scroll small area to top!
 *       </button>
 *     </ion-scroll>
 *   </ion-content>
 * </body>
 * ```
 * ```js
 * function MainCtrl($scope, $ionicScrollDelegate) {
 *   $scope.scrollMainToTop = function() {
 *     $ionicScrollDelegate.$getByHandle('mainScroll').scrollTop();
 *   };
 *   $scope.scrollSmallToTop = function() {
 *     $ionicScrollDelegate.$getByHandle('small').scrollTop();
 *   };
 * }
 * ```
 */
IonicModule
.service('$ionicScrollDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#resize
   * @description Tell the scrollView to recalculate the size of its container.
   */
  'resize',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#scrollTop
   * @param {boolean=} shouldAnimate Whether the scroll should animate.
   */
  'scrollTop',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#scrollBottom
   * @param {boolean=} shouldAnimate Whether the scroll should animate.
   */
  'scrollBottom',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#scrollTo
   * @param {number} left The x-value to scroll to.
   * @param {number} top The y-value to scroll to.
   * @param {boolean=} shouldAnimate Whether the scroll should animate.
   */
  'scrollTo',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#scrollBy
   * @param {number} left The x-offset to scroll by.
   * @param {number} top The y-offset to scroll by.
   * @param {boolean=} shouldAnimate Whether the scroll should animate.
   */
  'scrollBy',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#zoomTo
   * @param {number} level Level to zoom to.
   * @param {boolean=} animate Whether to animate the zoom.
   * @param {number=} originLeft Zoom in at given left coordinate.
   * @param {number=} originTop Zoom in at given top coordinate.
   */
  'zoomTo',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#zoomBy
   * @param {number} factor The factor to zoom by.
   * @param {boolean=} animate Whether to animate the zoom.
   * @param {number=} originLeft Zoom in at given left coordinate.
   * @param {number=} originTop Zoom in at given top coordinate.
   */
  'zoomBy',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#getScrollPosition
   * @returns {object} The scroll position of this view, with the following properties:
   *  - `{number}` `left` The distance the user has scrolled from the left (starts at 0).
   *  - `{number}` `top` The distance the user has scrolled from the top (starts at 0).
   */
  'getScrollPosition',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#anchorScroll
   * @description Tell the scrollView to scroll to the element with an id
   * matching window.location.hash.
   *
   * If no matching element is found, it will scroll to top.
   *
   * @param {boolean=} shouldAnimate Whether the scroll should animate.
   */
  'anchorScroll',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#freezeScroll
   * @description Does not allow this scroll view to scroll either x or y.
   * @param {boolean=} shouldFreeze Should this scroll view be prevented from scrolling or not.
   * @returns {object} If the scroll view is being prevented from scrolling or not.
   */
  'freezeScroll',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#freezeAllScrolls
   * @description Does not allow any of the app's scroll views to scroll either x or y.
   * @param {boolean=} shouldFreeze Should all app scrolls be prevented from scrolling or not.
   */
  'freezeAllScrolls',
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#getScrollView
   * @returns {object} The scrollView associated with this delegate.
   */
  'getScrollView'
  /**
   * @ngdoc method
   * @name $ionicScrollDelegate#$getByHandle
   * @param {string} handle
   * @returns `delegateInstance` A delegate instance that controls only the
   * scrollViews with `delegate-handle` matching the given handle.
   *
   * Example: `$ionicScrollDelegate.$getByHandle('my-handle').scrollTop();`
   */
]));


/**
 * @ngdoc service
 * @name $ionicSideMenuDelegate
 * @module ionic
 *
 * @description
 * Delegate for controlling the {@link ionic.directive:ionSideMenus} directive.
 *
 * Methods called directly on the $ionicSideMenuDelegate service will control all side
 * menus.  Use the {@link ionic.service:$ionicSideMenuDelegate#$getByHandle $getByHandle}
 * method to control specific ionSideMenus instances.
 *
 * @usage
 *
 * ```html
 * <body ng-controller="MainCtrl">
 *   <ion-side-menus>
 *     <ion-side-menu-content>
 *       Content!
 *       <button ng-click="toggleLeftSideMenu()">
 *         Toggle Left Side Menu
 *       </button>
 *     </ion-side-menu-content>
 *     <ion-side-menu side="left">
 *       Left Menu!
 *     <ion-side-menu>
 *   </ion-side-menus>
 * </body>
 * ```
 * ```js
 * function MainCtrl($scope, $ionicSideMenuDelegate) {
 *   $scope.toggleLeftSideMenu = function() {
 *     $ionicSideMenuDelegate.toggleLeft();
 *   };
 * }
 * ```
 */
IonicModule
.service('$ionicSideMenuDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#toggleLeft
   * @description Toggle the left side menu (if it exists).
   * @param {boolean=} isOpen Whether to open or close the menu.
   * Default: Toggles the menu.
   */
  'toggleLeft',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#toggleRight
   * @description Toggle the right side menu (if it exists).
   * @param {boolean=} isOpen Whether to open or close the menu.
   * Default: Toggles the menu.
   */
  'toggleRight',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#getOpenRatio
   * @description Gets the ratio of open amount over menu width. For example, a
   * menu of width 100 that is opened by 50 pixels is 50% opened, and would return
   * a ratio of 0.5.
   *
   * @returns {float} 0 if nothing is open, between 0 and 1 if left menu is
   * opened/opening, and between 0 and -1 if right menu is opened/opening.
   */
  'getOpenRatio',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#isOpen
   * @returns {boolean} Whether either the left or right menu is currently opened.
   */
  'isOpen',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#isOpenLeft
   * @returns {boolean} Whether the left menu is currently opened.
   */
  'isOpenLeft',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#isOpenRight
   * @returns {boolean} Whether the right menu is currently opened.
   */
  'isOpenRight',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#canDragContent
   * @param {boolean=} canDrag Set whether the content can or cannot be dragged to open
   * side menus.
   * @returns {boolean} Whether the content can be dragged to open side menus.
   */
  'canDragContent',
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#edgeDragThreshold
   * @param {boolean|number=} value Set whether the content drag can only start if it is below a certain threshold distance from the edge of the screen. Accepts three different values:
   *  - If a non-zero number is given, that many pixels is used as the maximum allowed distance from the edge that starts dragging the side menu.
   *  - If true is given, the default number of pixels (25) is used as the maximum allowed distance.
   *  - If false or 0 is given, the edge drag threshold is disabled, and dragging from anywhere on the content is allowed.
   * @returns {boolean} Whether the drag can start only from within the edge of screen threshold.
   */
  'edgeDragThreshold'
  /**
   * @ngdoc method
   * @name $ionicSideMenuDelegate#$getByHandle
   * @param {string} handle
   * @returns `delegateInstance` A delegate instance that controls only the
   * {@link ionic.directive:ionSideMenus} directives with `delegate-handle` matching
   * the given handle.
   *
   * Example: `$ionicSideMenuDelegate.$getByHandle('my-handle').toggleLeft();`
   */
]));


/**
 * @ngdoc service
 * @name $ionicSlideBoxDelegate
 * @module ionic
 * @description
 * Delegate that controls the {@link ionic.directive:ionSlideBox} directive.
 *
 * Methods called directly on the $ionicSlideBoxDelegate service will control all slide boxes.  Use the {@link ionic.service:$ionicSlideBoxDelegate#$getByHandle $getByHandle}
 * method to control specific slide box instances.
 *
 * @usage
 *
 * ```html
 * <ion-view>
 *   <ion-slide-box>
 *     <ion-slide>
 *       <div class="box blue">
 *         <button ng-click="nextSlide()">Next slide!</button>
 *       </div>
 *     </ion-slide>
 *     <ion-slide>
 *       <div class="box red">
 *         Slide 2!
 *       </div>
 *     </ion-slide>
 *   </ion-slide-box>
 * </ion-view>
 * ```
 * ```js
 * function MyCtrl($scope, $ionicSlideBoxDelegate) {
 *   $scope.nextSlide = function() {
 *     $ionicSlideBoxDelegate.next();
 *   }
 * }
 * ```
 */
IonicModule
.service('$ionicSlideBoxDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#update
   * @description
   * Update the slidebox (for example if using Angular with ng-repeat,
   * resize it for the elements inside).
   */
  'update',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#slide
   * @param {number} to The index to slide to.
   * @param {number=} speed The number of milliseconds for the change to take.
   */
  'slide',
  'select',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#enableSlide
   * @param {boolean=} shouldEnable Whether to enable sliding the slidebox.
   * @returns {boolean} Whether sliding is enabled.
   */
  'enableSlide',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#previous
   * @description Go to the previous slide. Wraps around if at the beginning.
   */
  'previous',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#next
   * @description Go to the next slide. Wraps around if at the end.
   */
  'next',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#stop
   * @description Stop sliding. The slideBox will not move again until
   * explicitly told to do so.
   */
  'stop',
  'autoPlay',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#start
   * @description Start sliding again if the slideBox was stopped.
   */
  'start',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#currentIndex
   * @returns number The index of the current slide.
   */
  'currentIndex',
  'selected',
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#slidesCount
   * @returns number The number of slides there are currently.
   */
  'slidesCount',
  'count',
  'loop'
  /**
   * @ngdoc method
   * @name $ionicSlideBoxDelegate#$getByHandle
   * @param {string} handle
   * @returns `delegateInstance` A delegate instance that controls only the
   * {@link ionic.directive:ionSlideBox} directives with `delegate-handle` matching
   * the given handle.
   *
   * Example: `$ionicSlideBoxDelegate.$getByHandle('my-handle').stop();`
   */
]));


/**
 * @ngdoc service
 * @name $ionicTabsDelegate
 * @module ionic
 *
 * @description
 * Delegate for controlling the {@link ionic.directive:ionTabs} directive.
 *
 * Methods called directly on the $ionicTabsDelegate service will control all ionTabs
 * directives. Use the {@link ionic.service:$ionicTabsDelegate#$getByHandle $getByHandle}
 * method to control specific ionTabs instances.
 *
 * @usage
 *
 * ```html
 * <body ng-controller="MyCtrl">
 *   <ion-tabs>
 *
 *     <ion-tab title="Tab 1">
 *       Hello tab 1!
 *       <button ng-click="selectTabWithIndex(1)">Select tab 2!</button>
 *     </ion-tab>
 *     <ion-tab title="Tab 2">Hello tab 2!</ion-tab>
 *
 *   </ion-tabs>
 * </body>
 * ```
 * ```js
 * function MyCtrl($scope, $ionicTabsDelegate) {
 *   $scope.selectTabWithIndex = function(index) {
 *     $ionicTabsDelegate.select(index);
 *   }
 * }
 * ```
 */
IonicModule
.service('$ionicTabsDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicTabsDelegate#select
   * @description Select the tab matching the given index.
   *
   * @param {number} index Index of the tab to select.
   */
  'select',
  /**
   * @ngdoc method
   * @name $ionicTabsDelegate#selectedIndex
   * @returns `number` The index of the selected tab, or -1.
   */
  'selectedIndex'
  /**
   * @ngdoc method
   * @name $ionicTabsDelegate#$getByHandle
   * @param {string} handle
   * @returns `delegateInstance` A delegate instance that controls only the
   * {@link ionic.directive:ionTabs} directives with `delegate-handle` matching
   * the given handle.
   *
   * Example: `$ionicTabsDelegate.$getByHandle('my-handle').select(0);`
   */
]));


// closure to keep things neat
(function() {
  var templatesToCache = [];

/**
 * @ngdoc service
 * @name $ionicTemplateCache
 * @module ionic
 * @description A service that preemptively caches template files to eliminate transition flicker and boost performance.
 * @usage
 * State templates are cached automatically, but you can optionally cache other templates.
 *
 * ```js
 * $ionicTemplateCache('myNgIncludeTemplate.html');
 * ```
 *
 * Optionally disable all preemptive caching with the `$ionicConfigProvider` or individual states by setting `prefetchTemplate`
 * in the `$state` definition
 *
 * ```js
 *   angular.module('myApp', ['ionic'])
 *   .config(function($stateProvider, $ionicConfigProvider) {
 *
 *     // disable preemptive template caching globally
 *     $ionicConfigProvider.templates.prefetch(false);
 *
 *     // disable individual states
 *     $stateProvider
 *       .state('tabs', {
 *         url: "/tab",
 *         abstract: true,
 *         prefetchTemplate: false,
 *         templateUrl: "tabs-templates/tabs.html"
 *       })
 *       .state('tabs.home', {
 *         url: "/home",
 *         views: {
 *           'home-tab': {
 *             prefetchTemplate: false,
 *             templateUrl: "tabs-templates/home.html",
 *             controller: 'HomeTabCtrl'
 *           }
 *         }
 *       });
 *   });
 * ```
 */
IonicModule
.factory('$ionicTemplateCache', [
'$http',
'$templateCache',
'$timeout',
function($http, $templateCache, $timeout) {
  var toCache = templatesToCache,
      hasRun;

  function $ionicTemplateCache(templates) {
    if (typeof templates === 'undefined') {
      return run();
    }
    if (isString(templates)) {
      templates = [templates];
    }
    forEach(templates, function(template) {
      toCache.push(template);
    });
    if (hasRun) {
      run();
    }
  }

  // run through methods - internal method
  function run() {
    $ionicTemplateCache._runCount++;

    hasRun = true;
    // ignore if race condition already zeroed out array
    if (toCache.length === 0) return;

    var i = 0;
    while (i < 4 && (template = toCache.pop())) {
      // note that inline templates are ignored by this request
      if (isString(template)) $http.get(template, { cache: $templateCache });
      i++;
    }
    // only preload 3 templates a second
    if (toCache.length) {
      $timeout(run, 1000);
    }
  }

  // exposing for testing
  $ionicTemplateCache._runCount = 0;
  // default method
  return $ionicTemplateCache;
}])

// Intercepts the $stateprovider.state() command to look for templateUrls that can be cached
.config([
'$stateProvider',
'$ionicConfigProvider',
function($stateProvider, $ionicConfigProvider) {
  var stateProviderState = $stateProvider.state;
  $stateProvider.state = function(stateName, definition) {
    // don't even bother if it's disabled. note, another config may run after this, so it's not a catch-all
    if (typeof definition === 'object') {
      var enabled = definition.prefetchTemplate !== false && templatesToCache.length < $ionicConfigProvider.templates.maxPrefetch();
      if (enabled && isString(definition.templateUrl)) templatesToCache.push(definition.templateUrl);
      if (angular.isObject(definition.views)) {
        for (var key in definition.views) {
          enabled = definition.views[key].prefetchTemplate !== false && templatesToCache.length < $ionicConfigProvider.templates.maxPrefetch();
          if (enabled && isString(definition.views[key].templateUrl)) templatesToCache.push(definition.views[key].templateUrl);
        }
      }
    }
    return stateProviderState.call($stateProvider, stateName, definition);
  };
}])

// process the templateUrls collected by the $stateProvider, adding them to the cache
.run(['$ionicTemplateCache', function($ionicTemplateCache) {
  $ionicTemplateCache();
}]);

})();

IonicModule
.factory('$ionicTemplateLoader', [
  '$compile',
  '$controller',
  '$http',
  '$q',
  '$rootScope',
  '$templateCache',
function($compile, $controller, $http, $q, $rootScope, $templateCache) {

  return {
    load: fetchTemplate,
    compile: loadAndCompile
  };

  function fetchTemplate(url) {
    return $http.get(url, {cache: $templateCache})
    .then(function(response) {
      return response.data && response.data.trim();
    });
  }

  function loadAndCompile(options) {
    options = extend({
      template: '',
      templateUrl: '',
      scope: null,
      controller: null,
      locals: {},
      appendTo: null
    }, options || {});

    var templatePromise = options.templateUrl ?
      this.load(options.templateUrl) :
      $q.when(options.template);

    return templatePromise.then(function(template) {
      var controller;
      var scope = options.scope || $rootScope.$new();

      //Incase template doesn't have just one root element, do this
      var element = jqLite('<div>').html(template).contents();

      if (options.controller) {
        controller = $controller(
          options.controller,
          extend(options.locals, {
            $scope: scope
          })
        );
        element.children().data('$ngControllerController', controller);
      }
      if (options.appendTo) {
        jqLite(options.appendTo).append(element);
      }

      $compile(element)(scope);

      return {
        element: element,
        scope: scope
      };
    });
  }

}]);

/**
 * @private
 * DEPRECATED, as of v1.0.0-beta14 -------
 */
IonicModule
.factory('$ionicViewService', ['$ionicHistory', '$log', function($ionicHistory, $log) {

  function warn(oldMethod, newMethod) {
    $log.warn('$ionicViewService' + oldMethod + ' is deprecated, please use $ionicHistory' + newMethod + ' instead: http://ionicframework.com/docs/nightly/api/service/$ionicHistory/');
  }

  warn('', '');

  var methodsMap = {
    getCurrentView: 'currentView',
    getBackView: 'backView',
    getForwardView: 'forwardView',
    getCurrentStateName: 'currentStateName',
    nextViewOptions: 'nextViewOptions',
    clearHistory: 'clearHistory'
  };

  forEach(methodsMap, function(newMethod, oldMethod) {
    methodsMap[oldMethod] = function() {
      warn('.' + oldMethod, '.' + newMethod);
      return $ionicHistory[newMethod].apply(this, arguments);
    };
  });

  return methodsMap;

}]);

/**
 * @private
 * TODO document
 */

IonicModule
.factory('$ionicViewSwitcher',[
  '$timeout',
  '$document',
  '$q',
  '$ionicClickBlock',
  '$ionicConfig',
  '$ionicNavBarDelegate',
function($timeout, $document, $q, $ionicClickBlock, $ionicConfig, $ionicNavBarDelegate) {

  var TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';
  var DATA_NO_CACHE = '$noCache';
  var DATA_DESTROY_ELE = '$destroyEle';
  var DATA_ELE_IDENTIFIER = '$eleId';
  var DATA_VIEW_ACCESSED = '$accessed';
  var DATA_FALLBACK_TIMER = '$fallbackTimer';
  var DATA_VIEW = '$viewData';
  var NAV_VIEW_ATTR = 'nav-view';
  var HISTORY_CURSOR_ATTR = 'history-cursor';
  var VIEW_STATUS_ACTIVE = 'active';
  var VIEW_STATUS_CACHED = 'cached';
  var VIEW_STATUS_STAGED = 'stage';

  var transitionCounter = 0;
  var nextTransition, nextDirection;
  ionic.transition = ionic.transition || {};
  ionic.transition.isActive = false;
  var isActiveTimer;
  var cachedAttr = ionic.DomUtil.cachedAttr;
  var transitionPromises = [];
  var defaultTimeout = 1100;

  var ionicViewSwitcher = {

    create: function(navViewCtrl, viewLocals, enteringView, leavingView, renderStart, renderEnd) {
      // get a reference to an entering/leaving element if they exist
      // loop through to see if the view is already in the navViewElement
      var enteringEle, leavingEle;
      var transitionId = ++transitionCounter;
      var alreadyInDom;

      var switcher = {

        init: function(registerData, callback) {
          ionicViewSwitcher.isTransitioning(true);

          switcher.loadViewElements(registerData);

          switcher.render(registerData, function() {
            callback && callback();
          });
        },

        loadViewElements: function(registerData) {
          var x, l, viewEle;
          var viewElements = navViewCtrl.getViewElements();
          var enteringEleIdentifier = getViewElementIdentifier(viewLocals, enteringView);
          var navViewActiveEleId = navViewCtrl.activeEleId();

          for (x = 0, l = viewElements.length; x < l; x++) {
            viewEle = viewElements.eq(x);

            if (viewEle.data(DATA_ELE_IDENTIFIER) === enteringEleIdentifier) {
              // we found an existing element in the DOM that should be entering the view
              if (viewEle.data(DATA_NO_CACHE)) {
                // the existing element should not be cached, don't use it
                viewEle.data(DATA_ELE_IDENTIFIER, enteringEleIdentifier + ionic.Utils.nextUid());
                viewEle.data(DATA_DESTROY_ELE, true);

              } else {
                enteringEle = viewEle;
              }

            } else if (isDefined(navViewActiveEleId) && viewEle.data(DATA_ELE_IDENTIFIER) === navViewActiveEleId) {
              leavingEle = viewEle;
            }

            if (enteringEle && leavingEle) break;
          }

          alreadyInDom = !!enteringEle;

          if (!alreadyInDom) {
            // still no existing element to use
            // create it using existing template/scope/locals
            enteringEle = registerData.ele || ionicViewSwitcher.createViewEle(viewLocals);

            // existing elements in the DOM are looked up by their state name and state id
            enteringEle.data(DATA_ELE_IDENTIFIER, enteringEleIdentifier);
          }

          if (renderEnd) {
            navViewCtrl.activeEleId(enteringEleIdentifier);
          }

          registerData.ele = null;
        },

        render: function(registerData, callback) {
          if (alreadyInDom) {
            // it was already found in the DOM, just reconnect the scope
            ionic.Utils.reconnectScope(enteringEle.scope());

          } else {
            // the entering element is not already in the DOM
            // set that the entering element should be "staged" and its
            // styles of where this element will go before it hits the DOM
            navViewAttr(enteringEle, VIEW_STATUS_STAGED);

            var enteringData = getTransitionData(viewLocals, enteringEle, registerData.direction, enteringView);
            var transitionFn = $ionicConfig.transitions.views[enteringData.transition] || $ionicConfig.transitions.views.none;
            transitionFn(enteringEle, null, enteringData.direction, true).run(0);

            enteringEle.data(DATA_VIEW, {
              viewId: enteringData.viewId,
              historyId: enteringData.historyId,
              stateName: enteringData.stateName,
              stateParams: enteringData.stateParams
            });

            // if the current state has cache:false
            // or the element has cache-view="false" attribute
            if (viewState(viewLocals).cache === false || viewState(viewLocals).cache === 'false' ||
                enteringEle.attr('cache-view') == 'false' || $ionicConfig.views.maxCache() === 0) {
              enteringEle.data(DATA_NO_CACHE, true);
            }

            // append the entering element to the DOM, create a new scope and run link
            var viewScope = navViewCtrl.appendViewElement(enteringEle, viewLocals);

            delete enteringData.direction;
            delete enteringData.transition;
            viewScope.$emit('$ionicView.loaded', enteringData);
          }

          // update that this view was just accessed
          enteringEle.data(DATA_VIEW_ACCESSED, Date.now());

          callback && callback();
        },

        transition: function(direction, enableBack, allowAnimate) {
          var deferred;
          var enteringData = getTransitionData(viewLocals, enteringEle, direction, enteringView);
          var leavingData = extend(extend({}, enteringData), getViewData(leavingView));
          enteringData.transitionId = leavingData.transitionId = transitionId;
          enteringData.fromCache = !!alreadyInDom;
          enteringData.enableBack = !!enableBack;
          enteringData.renderStart = renderStart;
          enteringData.renderEnd = renderEnd;

          cachedAttr(enteringEle.parent(), 'nav-view-transition', enteringData.transition);
          cachedAttr(enteringEle.parent(), 'nav-view-direction', enteringData.direction);

          // cancel any previous transition complete fallbacks
          $timeout.cancel(enteringEle.data(DATA_FALLBACK_TIMER));

          // get the transition ready and see if it'll animate
          var transitionFn = $ionicConfig.transitions.views[enteringData.transition] || $ionicConfig.transitions.views.none;
          var viewTransition = transitionFn(enteringEle, leavingEle, enteringData.direction,
                                            enteringData.shouldAnimate && allowAnimate && renderEnd);

          if (viewTransition.shouldAnimate) {
            // attach transitionend events (and fallback timer)
            enteringEle.on(TRANSITIONEND_EVENT, completeOnTransitionEnd);
            enteringEle.data(DATA_FALLBACK_TIMER, $timeout(transitionComplete, defaultTimeout));
            $ionicClickBlock.show(defaultTimeout);
          }

          if (renderStart) {
            // notify the views "before" the transition starts
            switcher.emit('before', enteringData, leavingData);

            // stage entering element, opacity 0, no transition duration
            navViewAttr(enteringEle, VIEW_STATUS_STAGED);

            // render the elements in the correct location for their starting point
            viewTransition.run(0);
          }

          if (renderEnd) {
            // create a promise so we can keep track of when all transitions finish
            // only required if this transition should complete
            deferred = $q.defer();
            transitionPromises.push(deferred.promise);
          }

          if (renderStart && renderEnd) {
            // CSS "auto" transitioned, not manually transitioned
            // wait a frame so the styles apply before auto transitioning
            $timeout(onReflow, 16);

          } else if (!renderEnd) {
            // just the start of a manual transition
            // but it will not render the end of the transition
            navViewAttr(enteringEle, 'entering');
            navViewAttr(leavingEle, 'leaving');

            // return the transition run method so each step can be ran manually
            return {
              run: viewTransition.run,
              cancel: function(shouldAnimate) {
                if (shouldAnimate) {
                  enteringEle.on(TRANSITIONEND_EVENT, cancelOnTransitionEnd);
                  enteringEle.data(DATA_FALLBACK_TIMER, $timeout(cancelTransition, defaultTimeout));
                  $ionicClickBlock.show(defaultTimeout);
                } else {
                  cancelTransition();
                }
                viewTransition.shouldAnimate = shouldAnimate;
                viewTransition.run(0);
                viewTransition = null;
              }
            };

          } else if (renderEnd) {
            // just the end of a manual transition
            // happens after the manual transition has completed
            // and a full history change has happened
            onReflow();
          }


          function onReflow() {
            // remove that we're staging the entering element so it can auto transition
            navViewAttr(enteringEle, viewTransition.shouldAnimate ? 'entering' : VIEW_STATUS_ACTIVE);
            navViewAttr(leavingEle, viewTransition.shouldAnimate ? 'leaving' : VIEW_STATUS_CACHED);

            // start the auto transition and let the CSS take over
            viewTransition.run(1);

            // trigger auto transitions on the associated nav bars
            $ionicNavBarDelegate._instances.forEach(function(instance) {
              instance.triggerTransitionStart(transitionId);
            });

            if (!viewTransition.shouldAnimate) {
              // no animated auto transition
              transitionComplete();
            }
          }

          // Make sure that transitionend events bubbling up from children won't fire
          // transitionComplete. Will only go forward if ev.target == the element listening.
          function completeOnTransitionEnd(ev) {
            if (ev.target !== this) return;
            transitionComplete();
          }
          function transitionComplete() {
            if (transitionComplete.x) return;
            transitionComplete.x = true;

            enteringEle.off(TRANSITIONEND_EVENT, completeOnTransitionEnd);
            $timeout.cancel(enteringEle.data(DATA_FALLBACK_TIMER));
            leavingEle && $timeout.cancel(leavingEle.data(DATA_FALLBACK_TIMER));

            // emit that the views have finished transitioning
            // each parent nav-view will update which views are active and cached
            switcher.emit('after', enteringData, leavingData);

            // resolve that this one transition (there could be many w/ nested views)
            deferred && deferred.resolve(navViewCtrl);

            // the most recent transition added has completed and all the active
            // transition promises should be added to the services array of promises
            if (transitionId === transitionCounter) {
              $q.all(transitionPromises).then(ionicViewSwitcher.transitionEnd);
              switcher.cleanup(enteringData);
            }

            // tell the nav bars that the transition has ended
            $ionicNavBarDelegate._instances.forEach(function(instance) {
              instance.triggerTransitionEnd();
            });

            // remove any references that could cause memory issues
            nextTransition = nextDirection = enteringView = leavingView = enteringEle = leavingEle = null;
          }

          // Make sure that transitionend events bubbling up from children won't fire
          // transitionComplete. Will only go forward if ev.target == the element listening.
          function cancelOnTransitionEnd(ev) {
            if (ev.target !== this) return;
            cancelTransition();
          }
          function cancelTransition() {
            navViewAttr(enteringEle, VIEW_STATUS_CACHED);
            navViewAttr(leavingEle, VIEW_STATUS_ACTIVE);
            enteringEle.off(TRANSITIONEND_EVENT, cancelOnTransitionEnd);
            $timeout.cancel(enteringEle.data(DATA_FALLBACK_TIMER));
            ionicViewSwitcher.transitionEnd([navViewCtrl]);
          }

        },

        emit: function(step, enteringData, leavingData) {
          var scope = enteringEle.scope();
          if (scope) {
            scope.$emit('$ionicView.' + step + 'Enter', enteringData);
            if (step == 'after') {
              scope.$emit('$ionicView.enter', enteringData);
            }
          }

          if (leavingEle) {
            scope = leavingEle.scope();
            if (scope) {
              scope.$emit('$ionicView.' + step + 'Leave', leavingData);
              if (step == 'after') {
                scope.$emit('$ionicView.leave', leavingData);
              }
            }

          } else if (scope && leavingData && leavingData.viewId) {
            scope.$emit('$ionicNavView.' + step + 'Leave', leavingData);
            if (step == 'after') {
              scope.$emit('$ionicNavView.leave', leavingData);
            }
          }
        },

        cleanup: function(transData) {
          // check if any views should be removed
          if (leavingEle && transData.direction == 'back' && !$ionicConfig.views.forwardCache()) {
            // if they just navigated back we can destroy the forward view
            // do not remove forward views if cacheForwardViews config is true
            destroyViewEle(leavingEle);
          }

          var viewElements = navViewCtrl.getViewElements();
          var viewElementsLength = viewElements.length;
          var x, viewElement;
          var removeOldestAccess = (viewElementsLength - 1) > $ionicConfig.views.maxCache();
          var removableEle;
          var oldestAccess = Date.now();

          for (x = 0; x < viewElementsLength; x++) {
            viewElement = viewElements.eq(x);

            if (removeOldestAccess && viewElement.data(DATA_VIEW_ACCESSED) < oldestAccess) {
              // remember what was the oldest element to be accessed so it can be destroyed
              oldestAccess = viewElement.data(DATA_VIEW_ACCESSED);
              removableEle = viewElements.eq(x);

            } else if (viewElement.data(DATA_DESTROY_ELE) && navViewAttr(viewElement) != VIEW_STATUS_ACTIVE) {
              destroyViewEle(viewElement);
            }
          }

          destroyViewEle(removableEle);

          if (enteringEle.data(DATA_NO_CACHE)) {
            enteringEle.data(DATA_DESTROY_ELE, true);
          }
        },

        enteringEle: function() { return enteringEle; },
        leavingEle: function() { return leavingEle; }

      };

      return switcher;
    },

    transitionEnd: function(navViewCtrls) {
      forEach(navViewCtrls, function(navViewCtrl) {
        navViewCtrl.transitionEnd();
      });

      ionicViewSwitcher.isTransitioning(false);
      $ionicClickBlock.hide();
      transitionPromises = [];
    },

    nextTransition: function(val) {
      nextTransition = val;
    },

    nextDirection: function(val) {
      nextDirection = val;
    },

    isTransitioning: function(val) {
      if (arguments.length) {
        ionic.transition.isActive = !!val;
        $timeout.cancel(isActiveTimer);
        if (val) {
          isActiveTimer = $timeout(function() {
            ionicViewSwitcher.isTransitioning(false);
          }, 999);
        }
      }
      return ionic.transition.isActive;
    },

    createViewEle: function(viewLocals) {
      var containerEle = $document[0].createElement('div');
      if (viewLocals && viewLocals.$template) {
        containerEle.innerHTML = viewLocals.$template;
        if (containerEle.children.length === 1) {
          containerEle.children[0].classList.add('pane');
          return jqLite(containerEle.children[0]);
        }
      }
      containerEle.className = "pane";
      return jqLite(containerEle);
    },

    viewEleIsActive: function(viewEle, isActiveAttr) {
      navViewAttr(viewEle, isActiveAttr ? VIEW_STATUS_ACTIVE : VIEW_STATUS_CACHED);
    },

    getTransitionData: getTransitionData,
    navViewAttr: navViewAttr,
    destroyViewEle: destroyViewEle

  };

  return ionicViewSwitcher;


  function getViewElementIdentifier(locals, view) {
    if (viewState(locals).abstract) return viewState(locals).name;
    if (view) return view.stateId || view.viewId;
    return ionic.Utils.nextUid();
  }

  function viewState(locals) {
    return locals && locals.$$state && locals.$$state.self || {};
  }

  function getTransitionData(viewLocals, enteringEle, direction, view) {
    // Priority
    // 1) attribute directive on the button/link to this view
    // 2) entering element's attribute
    // 3) entering view's $state config property
    // 4) view registration data
    // 5) global config
    // 6) fallback value

    var state = viewState(viewLocals);
    var viewTransition = nextTransition || cachedAttr(enteringEle, 'view-transition') || state.viewTransition || $ionicConfig.views.transition() || 'ios';
    var navBarTransition = $ionicConfig.navBar.transition();
    direction = nextDirection || cachedAttr(enteringEle, 'view-direction') || state.viewDirection || direction || 'none';

    return extend(getViewData(view), {
      transition: viewTransition,
      navBarTransition: navBarTransition === 'view' ? viewTransition : navBarTransition,
      direction: direction,
      shouldAnimate: (viewTransition !== 'none' && direction !== 'none')
    });
  }

  function getViewData(view) {
    view = view || {};
    return {
      viewId: view.viewId,
      historyId: view.historyId,
      stateId: view.stateId,
      stateName: view.stateName,
      stateParams: view.stateParams
    };
  }

  function navViewAttr(ele, value) {
    if (arguments.length > 1) {
      cachedAttr(ele, NAV_VIEW_ATTR, value);
    } else {
      return cachedAttr(ele, NAV_VIEW_ATTR);
    }
  }

  function destroyViewEle(ele) {
    // we found an element that should be removed
    // destroy its scope, then remove the element
    if (ele && ele.length) {
      var viewScope = ele.scope();
      if (viewScope) {
        viewScope.$emit('$ionicView.unloaded', ele.data(DATA_VIEW));
        viewScope.$destroy();
      }
      ele.remove();
    }
  }

}]);

/**
 * @private
 * Parts of Ionic requires that $scope data is attached to the element.
 * We do not want to disable adding $scope data to the $element when
 * $compileProvider.debugInfoEnabled(false) is used.
 */
IonicModule.config(['$provide', function($provide) {
  $provide.decorator('$compile', ['$delegate', function($compile) {
     $compile.$$addScopeInfo = function $$addScopeInfo($element, scope, isolated, noTemplate) {
       var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';
       $element.data(dataName, scope);
     };
     return $compile;
  }]);
}]);

/**
 * @private
 */
IonicModule.config([
  '$provide',
function($provide) {
  function $LocationDecorator($location, $timeout) {

    $location.__hash = $location.hash;
    //Fix: when window.location.hash is set, the scrollable area
    //found nearest to body's scrollTop is set to scroll to an element
    //with that ID.
    $location.hash = function(value) {
      if (isDefined(value)) {
        $timeout(function() {
          var scroll = document.querySelector('.scroll-content');
          if (scroll)
            scroll.scrollTop = 0;
        }, 0, false);
      }
      return $location.__hash(value);
    };

    return $location;
  }

  $provide.decorator('$location', ['$delegate', '$timeout', $LocationDecorator]);
}]);

IonicModule

.controller('$ionicHeaderBar', [
  '$scope',
  '$element',
  '$attrs',
  '$q',
  '$ionicConfig',
  '$ionicHistory',
function($scope, $element, $attrs, $q, $ionicConfig, $ionicHistory) {
  var TITLE = 'title';
  var BACK_TEXT = 'back-text';
  var BACK_BUTTON = 'back-button';
  var DEFAULT_TITLE = 'default-title';
  var PREVIOUS_TITLE = 'previous-title';
  var HIDE = 'hide';

  var self = this;
  var titleText = '';
  var previousTitleText = '';
  var titleLeft = 0;
  var titleRight = 0;
  var titleCss = '';
  var isBackEnabled = false;
  var isBackShown = true;
  var isNavBackShown = true;
  var isBackElementShown = false;
  var titleTextWidth = 0;


  self.beforeEnter = function(viewData) {
    $scope.$broadcast('$ionicView.beforeEnter', viewData);
  };


  self.title = function(newTitleText) {
    if (arguments.length && newTitleText !== titleText) {
      getEle(TITLE).innerHTML = newTitleText;
      titleText = newTitleText;
      titleTextWidth = 0;
    }
    return titleText;
  };


  self.enableBack = function(shouldEnable, disableReset) {
    // whether or not the back button show be visible, according
    // to the navigation and history
    if (arguments.length) {
      isBackEnabled = shouldEnable;
      if (!disableReset) self.updateBackButton();
    }
    return isBackEnabled;
  };


  self.showBack = function(shouldShow, disableReset) {
    // different from enableBack() because this will always have the back
    // visually hidden if false, even if the history says it should show
    if (arguments.length) {
      isBackShown = shouldShow;
      if (!disableReset) self.updateBackButton();
    }
    return isBackShown;
  };


  self.showNavBack = function(shouldShow) {
    // different from showBack() because this is for the entire nav bar's
    // setting for all of it's child headers. For internal use.
    isNavBackShown = shouldShow;
    self.updateBackButton();
  };


  self.updateBackButton = function() {
    if ((isBackShown && isNavBackShown && isBackEnabled) !== isBackElementShown) {
      isBackElementShown = isBackShown && isNavBackShown && isBackEnabled;
      var backBtnEle = getEle(BACK_BUTTON);
      backBtnEle && backBtnEle.classList[ isBackElementShown ? 'remove' : 'add' ](HIDE);
    }
  };


  self.titleTextWidth = function() {
    if (!titleTextWidth) {
      var bounds = ionic.DomUtil.getTextBounds(getEle(TITLE));
      titleTextWidth = Math.min(bounds && bounds.width || 30);
    }
    return titleTextWidth;
  };


  self.titleWidth = function() {
    var titleWidth = self.titleTextWidth();
    var offsetWidth = getEle(TITLE).offsetWidth;
    if (offsetWidth < titleWidth) {
      titleWidth = offsetWidth + (titleLeft - titleRight - 5);
    }
    return titleWidth;
  };


  self.titleTextX = function() {
    return ($element[0].offsetWidth / 2) - (self.titleWidth() / 2);
  };


  self.titleLeftRight = function() {
    return titleLeft - titleRight;
  };


  self.backButtonTextLeft = function() {
    var offsetLeft = 0;
    var ele = getEle(BACK_TEXT);
    while (ele) {
      offsetLeft += ele.offsetLeft;
      ele = ele.parentElement;
    }
    return offsetLeft;
  };


  self.resetBackButton = function(viewData) {
    if ($ionicConfig.backButton.previousTitleText()) {
      var previousTitleEle = getEle(PREVIOUS_TITLE);
      if (previousTitleEle) {
        previousTitleEle.classList.remove(HIDE);

        var view = (viewData && $ionicHistory.getViewById(viewData.viewId));
        var newPreviousTitleText = $ionicHistory.backTitle(view);

        if (newPreviousTitleText !== previousTitleText) {
          previousTitleText = previousTitleEle.innerHTML = newPreviousTitleText;
        }
      }
      var defaultTitleEle = getEle(DEFAULT_TITLE);
      if (defaultTitleEle) {
        defaultTitleEle.classList.remove(HIDE);
      }
    }
  };


  self.align = function(textAlign) {
    var titleEle = getEle(TITLE);

    textAlign = textAlign || $attrs.alignTitle || $ionicConfig.navBar.alignTitle();

    var widths = self.calcWidths(textAlign, false);

    if (isBackShown && previousTitleText && $ionicConfig.backButton.previousTitleText()) {
      var previousTitleWidths = self.calcWidths(textAlign, true);

      var availableTitleWidth = $element[0].offsetWidth - previousTitleWidths.titleLeft - previousTitleWidths.titleRight;

      if (self.titleTextWidth() <= availableTitleWidth) {
        widths = previousTitleWidths;
      }
    }

    return self.updatePositions(titleEle, widths.titleLeft, widths.titleRight, widths.buttonsLeft, widths.buttonsRight, widths.css, widths.showPrevTitle);
  };


  self.calcWidths = function(textAlign, isPreviousTitle) {
    var titleEle = getEle(TITLE);
    var backBtnEle = getEle(BACK_BUTTON);
    var x, y, z, b, c, d, childSize, bounds;
    var childNodes = $element[0].childNodes;
    var buttonsLeft = 0;
    var buttonsRight = 0;
    var isCountRightOfTitle;
    var updateTitleLeft = 0;
    var updateTitleRight = 0;
    var updateCss = '';
    var backButtonWidth = 0;

    // Compute how wide the left children are
    // Skip all titles (there may still be two titles, one leaving the dom)
    // Once we encounter a titleEle, realize we are now counting the right-buttons, not left
    for (x = 0; x < childNodes.length; x++) {
      c = childNodes[x];

      childSize = 0;
      if (c.nodeType == 1) {
        // element node
        if (c === titleEle) {
          isCountRightOfTitle = true;
          continue;
        }

        if (c.classList.contains(HIDE)) {
          continue;
        }

        if (isBackShown && c === backBtnEle) {

          for (y = 0; y < c.childNodes.length; y++) {
            b = c.childNodes[y];

            if (b.nodeType == 1) {

              if (b.classList.contains(BACK_TEXT)) {
                for (z = 0; z < b.children.length; z++) {
                  d = b.children[z];

                  if (isPreviousTitle) {
                    if (d.classList.contains(DEFAULT_TITLE)) continue;
                    backButtonWidth += d.offsetWidth;
                  } else {
                    if (d.classList.contains(PREVIOUS_TITLE)) continue;
                    backButtonWidth += d.offsetWidth;
                  }
                }

              } else {
                backButtonWidth += b.offsetWidth;
              }

            } else if (b.nodeType == 3 && b.nodeValue.trim()) {
              bounds = ionic.DomUtil.getTextBounds(b);
              backButtonWidth += bounds && bounds.width || 0;
            }

          }
          childSize = backButtonWidth || c.offsetWidth;

        } else {
          // not the title, not the back button, not a hidden element
          childSize = c.offsetWidth;
        }

      } else if (c.nodeType == 3 && c.nodeValue.trim()) {
        // text node
        bounds = ionic.DomUtil.getTextBounds(c);
        childSize = bounds && bounds.width || 0;
      }

      if (isCountRightOfTitle) {
        buttonsRight += childSize;
      } else {
        buttonsLeft += childSize;
      }
    }

    // Size and align the header titleEle based on the sizes of the left and
    // right children, and the desired alignment mode
    if (textAlign == 'left') {
      updateCss = 'title-left';
      if (buttonsLeft) {
        updateTitleLeft = buttonsLeft + 15;
      }
      if (buttonsRight) {
        updateTitleRight = buttonsRight + 15;
      }

    } else if (textAlign == 'right') {
      updateCss = 'title-right';
      if (buttonsLeft) {
        updateTitleLeft = buttonsLeft + 15;
      }
      if (buttonsRight) {
        updateTitleRight = buttonsRight + 15;
      }

    } else {
      // center the default
      var margin = Math.max(buttonsLeft, buttonsRight) + 10;
      if (margin > 10) {
        updateTitleLeft = updateTitleRight = margin;
      }
    }

    return {
      backButtonWidth: backButtonWidth,
      buttonsLeft: buttonsLeft,
      buttonsRight: buttonsRight,
      titleLeft: updateTitleLeft,
      titleRight: updateTitleRight,
      showPrevTitle: isPreviousTitle,
      css: updateCss
    };
  };


  self.updatePositions = function(titleEle, updateTitleLeft, updateTitleRight, buttonsLeft, buttonsRight, updateCss, showPreviousTitle) {
    var deferred = $q.defer();

    // only make DOM updates when there are actual changes
    if (titleEle) {
      if (updateTitleLeft !== titleLeft) {
        titleEle.style.left = updateTitleLeft ? updateTitleLeft + 'px' : '';
        titleLeft = updateTitleLeft;
      }
      if (updateTitleRight !== titleRight) {
        titleEle.style.right = updateTitleRight ? updateTitleRight + 'px' : '';
        titleRight = updateTitleRight;
      }

      if (updateCss !== titleCss) {
        updateCss && titleEle.classList.add(updateCss);
        titleCss && titleEle.classList.remove(titleCss);
        titleCss = updateCss;
      }
    }

    if ($ionicConfig.backButton.previousTitleText()) {
      var prevTitle = getEle(PREVIOUS_TITLE);
      var defaultTitle = getEle(DEFAULT_TITLE);

      prevTitle && prevTitle.classList[ showPreviousTitle ? 'remove' : 'add'](HIDE);
      defaultTitle && defaultTitle.classList[ showPreviousTitle ? 'add' : 'remove'](HIDE);
    }

    ionic.requestAnimationFrame(function() {
      if (titleEle && titleEle.offsetWidth + 10 < titleEle.scrollWidth) {
        var minRight = buttonsRight + 5;
        var testRight = $element[0].offsetWidth - titleLeft - self.titleTextWidth() - 20;
        updateTitleRight = testRight < minRight ? minRight : testRight;
        if (updateTitleRight !== titleRight) {
          titleEle.style.right = updateTitleRight + 'px';
          titleRight = updateTitleRight;
        }
      }
      deferred.resolve();
    });

    return deferred.promise;
  };


  self.setCss = function(elementClassname, css) {
    ionic.DomUtil.cachedStyles(getEle(elementClassname), css);
  };


  var eleCache = {};
  function getEle(className) {
    if (!eleCache[className]) {
      eleCache[className] = $element[0].querySelector('.' + className);
    }
    return eleCache[className];
  }


  $scope.$on('$destroy', function() {
    for (var n in eleCache) eleCache[n] = null;
  });

}]);

IonicModule
.controller('$ionInfiniteScroll', [
  '$scope',
  '$attrs',
  '$element',
  '$timeout',
  function($scope, $attrs,  $element, $timeout) {
  var self = this;
  self.isLoading = false;

  $scope.icon = function() {
    return isDefined($attrs.icon) ? $attrs.icon : 'ion-load-d';
  };

  $scope.spinner = function() {
    return isDefined($attrs.spinner) ? $attrs.spinner : '';
  };

  $scope.$on('scroll.infiniteScrollComplete', function() {
    finishInfiniteScroll();
  });

  $scope.$on('$destroy', function() {
    if (self.scrollCtrl && self.scrollCtrl.$element) self.scrollCtrl.$element.off('scroll', self.checkBounds);
    if (self.scrollEl && self.scrollEl.removeEventListener) {
      self.scrollEl.removeEventListener('scroll', self.checkBounds);
    }
  });

  // debounce checking infinite scroll events
  self.checkBounds = ionic.Utils.throttle(checkInfiniteBounds, 300);

  function onInfinite() {
    ionic.requestAnimationFrame(function() {
      $element[0].classList.add('active');
    });
    self.isLoading = true;
    $scope.$parent && $scope.$parent.$apply($attrs.onInfinite || '');
  }

  function finishInfiniteScroll() {
    ionic.requestAnimationFrame(function() {
      $element[0].classList.remove('active');
    });
    $timeout(function() {
      if (self.jsScrolling) self.scrollView.resize();
      self.checkBounds();
    }, 30, false);
    self.isLoading = false;
  }

  // check if we've scrolled far enough to trigger an infinite scroll
  function checkInfiniteBounds() {
    if (self.isLoading) return;
    var maxScroll = {};

    if (self.jsScrolling) {
      maxScroll = self.getJSMaxScroll();
      var scrollValues = self.scrollView.getValues();
      if ((maxScroll.left !== -1 && scrollValues.left >= maxScroll.left) ||
        (maxScroll.top !== -1 && scrollValues.top >= maxScroll.top)) {
        onInfinite();
      }
    } else {
      maxScroll = self.getNativeMaxScroll();
      if ((
        maxScroll.left !== -1 &&
        self.scrollEl.scrollLeft >= maxScroll.left - self.scrollEl.clientWidth
        ) || (
        maxScroll.top !== -1 &&
        self.scrollEl.scrollTop >= maxScroll.top - self.scrollEl.clientHeight
        )) {
        onInfinite();
      }
    }
  }

  // determine the threshold at which we should fire an infinite scroll
  // note: this gets processed every scroll event, can it be cached?
  self.getJSMaxScroll = function() {
    var maxValues = self.scrollView.getScrollMax();
    return {
      left: self.scrollView.options.scrollingX ?
        calculateMaxValue(maxValues.left) :
        -1,
      top: self.scrollView.options.scrollingY ?
        calculateMaxValue(maxValues.top) :
        -1
    };
  };

  self.getNativeMaxScroll = function() {
    var maxValues = {
      left: self.scrollEl.scrollWidth,
      top:  self.scrollEl.scrollHeight
    };
    var computedStyle = window.getComputedStyle(self.scrollEl) || {};
    return {
      left: computedStyle.overflowX === 'scroll' ||
      computedStyle.overflowX === 'auto' ||
      self.scrollEl.style['overflow-x'] === 'scroll' ?
        calculateMaxValue(maxValues.left) : -1,
      top: computedStyle.overflowY === 'scroll' ||
      computedStyle.overflowY === 'auto' ||
      self.scrollEl.style['overflow-y'] === 'scroll' ?
        calculateMaxValue(maxValues.top) : -1
    };
  };

  // determine pixel refresh distance based on % or value
  function calculateMaxValue(maximum) {
    distance = ($attrs.distance || '2.5%').trim();
    isPercent = distance.indexOf('%') !== -1;
    return isPercent ?
    maximum * (1 - parseFloat(distance) / 100) :
    maximum - parseFloat(distance);
  }

}]);


/**
 * @ngdoc service
 * @name $ionicListDelegate
 * @module ionic
 *
 * @description
 * Delegate for controlling the {@link ionic.directive:ionList} directive.
 *
 * Methods called directly on the $ionicListDelegate service will control all lists.
 * Use the {@link ionic.service:$ionicListDelegate#$getByHandle $getByHandle}
 * method to control specific ionList instances.
 *
 * @usage
 *
 * ````html
 * <ion-content ng-controller="MyCtrl">
 *   <button class="button" ng-click="showDeleteButtons()"></button>
 *   <ion-list>
 *     <ion-item ng-repeat="i in items">
 *       {% raw %}Hello, {{i}}!{% endraw %}
 *       <ion-delete-button class="ion-minus-circled"></ion-delete-button>
 *     </ion-item>
 *   </ion-list>
 * </ion-content>
 * ```
 * ```js
 * function MyCtrl($scope, $ionicListDelegate) {
 *   $scope.showDeleteButtons = function() {
 *     $ionicListDelegate.showDelete(true);
 *   };
 * }
 * ```
 */
IonicModule
.service('$ionicListDelegate', ionic.DelegateService([
  /**
   * @ngdoc method
   * @name $ionicListDelegate#showReorder
   * @param {boolean=} showReorder Set whether or not this list is showing its reorder buttons.
   * @returns {boolean} Whether the reorder buttons are shown.
   */
  'showReorder',
  /**
   * @ngdoc method
   * @name $ionicListDelegate#showDelete
   * @param {boolean=} showDelete Set whether or not this list is showing its delete buttons.
   * @returns {boolean} Whether the delete buttons are shown.
   */
  'showDelete',
  /**
   * @ngdoc method
   * @name $ionicListDelegate#canSwipeItems
   * @param {boolean=} canSwipeItems Set whether or not this list is able to swipe to show
   * option buttons.
   * @returns {boolean} Whether the list is able to swipe to show option buttons.
   */
  'canSwipeItems',
  /**
   * @ngdoc method
   * @name $ionicListDelegate#closeOptionButtons
   * @description Closes any option buttons on the list that are swiped open.
   */
  'closeOptionButtons',
  /**
   * @ngdoc method
   * @name $ionicListDelegate#$getByHandle
   * @param {string} handle
   * @returns `delegateInstance` A delegate instance that controls only the
   * {@link ionic.directive:ionList} directives with `delegate-handle` matching
   * the given handle.
   *
   * Example: `$ionicListDelegate.$getByHandle('my-handle').showReorder(true);`
   */
]))

.controller('$ionicList', [
  '$scope',
  '$attrs',
  '$ionicListDelegate',
  '$ionicHistory',
function($scope, $attrs, $ionicListDelegate, $ionicHistory) {
  var self = this;
  var isSwipeable = true;
  var isReorderShown = false;
  var isDeleteShown = false;

  var deregisterInstance = $ionicListDelegate._registerInstance(
    self, $attrs.delegateHandle, function() {
      return $ionicHistory.isActiveScope($scope);
    }
  );
  $scope.$on('$destroy', deregisterInstance);

  self.showReorder = function(show) {
    if (arguments.length) {
      isReorderShown = !!show;
    }
    return isReorderShown;
  };

  self.showDelete = function(show) {
    if (arguments.length) {
      isDeleteShown = !!show;
    }
    return isDeleteShown;
  };

  self.canSwipeItems = function(can) {
    if (arguments.length) {
      isSwipeable = !!can;
    }
    return isSwipeable;
  };

  self.closeOptionButtons = function() {
    self.listView && self.listView.clearDragEffects();
  };
}]);

IonicModule

.controller('$ionicNavBar', [
  '$scope',
  '$element',
  '$attrs',
  '$compile',
  '$timeout',
  '$ionicNavBarDelegate',
  '$ionicConfig',
  '$ionicHistory',
function($scope, $element, $attrs, $compile, $timeout, $ionicNavBarDelegate, $ionicConfig, $ionicHistory) {

  var CSS_HIDE = 'hide';
  var DATA_NAV_BAR_CTRL = '$ionNavBarController';
  var PRIMARY_BUTTONS = 'primaryButtons';
  var SECONDARY_BUTTONS = 'secondaryButtons';
  var BACK_BUTTON = 'backButton';
  var ITEM_TYPES = 'primaryButtons secondaryButtons leftButtons rightButtons title'.split(' ');

  var self = this;
  var headerBars = [];
  var navElementHtml = {};
  var isVisible = true;
  var queuedTransitionStart, queuedTransitionEnd, latestTransitionId;

  $element.parent().data(DATA_NAV_BAR_CTRL, self);

  var delegateHandle = $attrs.delegateHandle || 'navBar' + ionic.Utils.nextUid();

  var deregisterInstance = $ionicNavBarDelegate._registerInstance(self, delegateHandle);


  self.init = function() {
    $element.addClass('nav-bar-container');
    ionic.DomUtil.cachedAttr($element, 'nav-bar-transition', $ionicConfig.views.transition());

    // create two nav bar blocks which will trade out which one is shown
    self.createHeaderBar(false);
    self.createHeaderBar(true);

    $scope.$emit('ionNavBar.init', delegateHandle);
  };


  self.createHeaderBar = function(isActive, navBarClass) {
    var containerEle = jqLite('<div class="nav-bar-block">');
    ionic.DomUtil.cachedAttr(containerEle, 'nav-bar', isActive ? 'active' : 'cached');

    var alignTitle = $attrs.alignTitle || $ionicConfig.navBar.alignTitle();
    var headerBarEle = jqLite('<ion-header-bar>').addClass($attrs['class']).attr('align-title', alignTitle);
    if (isDefined($attrs.noTapScroll)) headerBarEle.attr('no-tap-scroll', $attrs.noTapScroll);
    var titleEle = jqLite('<div class="title title-' + alignTitle + '">');
    var navEle = {};
    var lastViewItemEle = {};
    var leftButtonsEle, rightButtonsEle;

    //navEle[BACK_BUTTON] = self.createBackButtonElement(headerBarEle);
    navEle[BACK_BUTTON] = createNavElement(BACK_BUTTON);
    navEle[BACK_BUTTON] && headerBarEle.append(navEle[BACK_BUTTON]);

    // append title in the header, this is the rock to where buttons append
    headerBarEle.append(titleEle);

    forEach(ITEM_TYPES, function(itemType) {
      // create default button elements
      navEle[itemType] = createNavElement(itemType);
      // append and position buttons
      positionItem(navEle[itemType], itemType);
    });

    // add header-item to the root children
    for (var x = 0; x < headerBarEle[0].children.length; x++) {
      headerBarEle[0].children[x].classList.add('header-item');
    }

    // compile header and append to the DOM
    containerEle.append(headerBarEle);
    $element.append($compile(containerEle)($scope.$new()));

    var headerBarCtrl = headerBarEle.data('$ionHeaderBarController');

    var headerBarInstance = {
      isActive: isActive,
      title: function(newTitleText) {
        headerBarCtrl.title(newTitleText);
      },
      setItem: function(navBarItemEle, itemType) {
        // first make sure any exiting nav bar item has been removed
        headerBarInstance.removeItem(itemType);

        if (navBarItemEle) {
          if (itemType === 'title') {
            // clear out the text based title
            headerBarInstance.title("");
          }

          // there's a custom nav bar item
          positionItem(navBarItemEle, itemType);

          if (navEle[itemType]) {
            // make sure the default on this itemType is hidden
            navEle[itemType].addClass(CSS_HIDE);
          }
          lastViewItemEle[itemType] = navBarItemEle;

        } else if (navEle[itemType]) {
          // there's a default button for this side and no view button
          navEle[itemType].removeClass(CSS_HIDE);
        }
      },
      removeItem: function(itemType) {
        if (lastViewItemEle[itemType]) {
          lastViewItemEle[itemType].scope().$destroy();
          lastViewItemEle[itemType].remove();
          lastViewItemEle[itemType] = null;
        }
      },
      containerEle: function() {
        return containerEle;
      },
      headerBarEle: function() {
        return headerBarEle;
      },
      afterLeave: function() {
        forEach(ITEM_TYPES, function(itemType) {
          headerBarInstance.removeItem(itemType);
        });
        headerBarCtrl.resetBackButton();
      },
      controller: function() {
        return headerBarCtrl;
      },
      destroy: function() {
        forEach(ITEM_TYPES, function(itemType) {
          headerBarInstance.removeItem(itemType);
        });
        containerEle.scope().$destroy();
        for (var n in navEle) {
          if (navEle[n]) {
            navEle[n].removeData();
            navEle[n] = null;
          }
        }
        leftButtonsEle && leftButtonsEle.removeData();
        rightButtonsEle && rightButtonsEle.removeData();
        titleEle.removeData();
        headerBarEle.removeData();
        containerEle.remove();
        containerEle = headerBarEle = titleEle = leftButtonsEle = rightButtonsEle = null;
      }
    };

    function positionItem(ele, itemType) {
      if (!ele) return;

      if (itemType === 'title') {
        // title element
        titleEle.append(ele);

      } else if (itemType == 'rightButtons' ||
                (itemType == SECONDARY_BUTTONS && $ionicConfig.navBar.positionSecondaryButtons() != 'left') ||
                (itemType == PRIMARY_BUTTONS && $ionicConfig.navBar.positionPrimaryButtons() == 'right')) {
        // right side
        if (!rightButtonsEle) {
          rightButtonsEle = jqLite('<div class="buttons buttons-right">');
          headerBarEle.append(rightButtonsEle);
        }
        if (itemType == SECONDARY_BUTTONS) {
          rightButtonsEle.append(ele);
        } else {
          rightButtonsEle.prepend(ele);
        }

      } else {
        // left side
        if (!leftButtonsEle) {
          leftButtonsEle = jqLite('<div class="buttons buttons-left">');
          if (navEle[BACK_BUTTON]) {
            navEle[BACK_BUTTON].after(leftButtonsEle);
          } else {
            headerBarEle.prepend(leftButtonsEle);
          }
        }
        if (itemType == SECONDARY_BUTTONS) {
          leftButtonsEle.append(ele);
        } else {
          leftButtonsEle.prepend(ele);
        }
      }

    }

    headerBars.push(headerBarInstance);

    return headerBarInstance;
  };


  self.navElement = function(type, html) {
    if (isDefined(html)) {
      navElementHtml[type] = html;
    }
    return navElementHtml[type];
  };


  self.update = function(viewData) {
    var showNavBar = !viewData.hasHeaderBar && viewData.showNavBar;
    viewData.transition = $ionicConfig.views.transition();

    if (!showNavBar) {
      viewData.direction = 'none';
    }

    self.enable(showNavBar);
    var enteringHeaderBar = self.isInitialized ? getOffScreenHeaderBar() : getOnScreenHeaderBar();
    var leavingHeaderBar = self.isInitialized ? getOnScreenHeaderBar() : null;
    var enteringHeaderCtrl = enteringHeaderBar.controller();

    // update if the entering header should show the back button or not
    enteringHeaderCtrl.enableBack(viewData.enableBack, true);
    enteringHeaderCtrl.showBack(viewData.showBack, true);
    enteringHeaderCtrl.updateBackButton();

    // update the entering header bar's title
    self.title(viewData.title, enteringHeaderBar);

    self.showBar(showNavBar);

    // update the nav bar items, depending if the view has their own or not
    if (viewData.navBarItems) {
      forEach(ITEM_TYPES, function(itemType) {
        enteringHeaderBar.setItem(viewData.navBarItems[itemType], itemType);
      });
    }

    // begin transition of entering and leaving header bars
    self.transition(enteringHeaderBar, leavingHeaderBar, viewData);

    self.isInitialized = true;
    navSwipeAttr('');
  };


  self.transition = function(enteringHeaderBar, leavingHeaderBar, viewData) {
    var enteringHeaderBarCtrl = enteringHeaderBar.controller();
    var transitionFn = $ionicConfig.transitions.navBar[viewData.navBarTransition] || $ionicConfig.transitions.navBar.none;
    var transitionId = viewData.transitionId;

    enteringHeaderBarCtrl.beforeEnter(viewData);

    var navBarTransition = transitionFn(enteringHeaderBar, leavingHeaderBar, viewData.direction, viewData.shouldAnimate && self.isInitialized);

    ionic.DomUtil.cachedAttr($element, 'nav-bar-transition', viewData.navBarTransition);
    ionic.DomUtil.cachedAttr($element, 'nav-bar-direction', viewData.direction);

    if (navBarTransition.shouldAnimate && viewData.renderEnd) {
      navBarAttr(enteringHeaderBar, 'stage');
    } else {
      navBarAttr(enteringHeaderBar, 'entering');
      navBarAttr(leavingHeaderBar, 'leaving');
    }

    enteringHeaderBarCtrl.resetBackButton(viewData);

    navBarTransition.run(0);

    self.activeTransition = {
      run: function(step) {
        navBarTransition.shouldAnimate = false;
        navBarTransition.direction = 'back';
        navBarTransition.run(step);
      },
      cancel: function(shouldAnimate, speed) {
        navSwipeAttr(speed);
        navBarAttr(leavingHeaderBar, 'active');
        navBarAttr(enteringHeaderBar, 'cached');
        navBarTransition.shouldAnimate = shouldAnimate;
        navBarTransition.run(0);
        self.activeTransition = navBarTransition = null;
      },
      complete: function(shouldAnimate, speed) {
        navSwipeAttr(speed);
        navBarTransition.shouldAnimate = shouldAnimate;
        navBarTransition.run(1);
        queuedTransitionEnd = transitionEnd;
      }
    };

    $timeout(enteringHeaderBarCtrl.align, 16);

    queuedTransitionStart = function() {
      if (latestTransitionId !== transitionId) return;

      navBarAttr(enteringHeaderBar, 'entering');
      navBarAttr(leavingHeaderBar, 'leaving');

      navBarTransition.run(1);

      queuedTransitionEnd = function() {
        if (latestTransitionId == transitionId || !navBarTransition.shouldAnimate) {
          transitionEnd();
        }
      };

      queuedTransitionStart = null;
    };

    function transitionEnd() {
      for (var x = 0; x < headerBars.length; x++) {
        headerBars[x].isActive = false;
      }
      enteringHeaderBar.isActive = true;

      navBarAttr(enteringHeaderBar, 'active');
      navBarAttr(leavingHeaderBar, 'cached');

      self.activeTransition = navBarTransition = queuedTransitionEnd = null;
    }

    queuedTransitionStart();
  };


  self.triggerTransitionStart = function(triggerTransitionId) {
    latestTransitionId = triggerTransitionId;
    queuedTransitionStart && queuedTransitionStart();
  };


  self.triggerTransitionEnd = function() {
    queuedTransitionEnd && queuedTransitionEnd();
  };


  self.showBar = function(shouldShow) {
    if (arguments.length) {
      self.visibleBar(shouldShow);
      $scope.$parent.$hasHeader = !!shouldShow;
    }
    return !!$scope.$parent.$hasHeader;
  };


  self.visibleBar = function(shouldShow) {
    if (shouldShow && !isVisible) {
      $element.removeClass(CSS_HIDE);
    } else if (!shouldShow && isVisible) {
      $element.addClass(CSS_HIDE);
    }
    isVisible = shouldShow;
  };


  self.enable = function(val) {
    // set primary to show first
    self.visibleBar(val);

    // set non primary to hide second
    for (var x = 0; x < $ionicNavBarDelegate._instances.length; x++) {
      if ($ionicNavBarDelegate._instances[x] !== self) $ionicNavBarDelegate._instances[x].visibleBar(false);
    }
  };


  /**
   * @ngdoc method
   * @name $ionicNavBar#showBackButton
   * @description Show/hide the nav bar back button when there is a
   * back view. If the back button is not possible, for example, the
   * first view in the stack, then this will not force the back button
   * to show.
   */
  self.showBackButton = function(shouldShow) {
    for (var x = 0; x < headerBars.length; x++) {
      headerBars[x].controller().showNavBack(!!shouldShow);
    }
    $scope.$isBackButtonShown = !!shouldShow;
    return $scope.$isBackButtonShown;
  };


  /**
   * @ngdoc method
   * @name $ionicNavBar#showActiveBackButton
   * @description Show/hide only the active header bar's back button.
   */
  self.showActiveBackButton = function(shouldShow) {
    var headerBar = getOnScreenHeaderBar();
    headerBar && headerBar.controller().showBack(shouldShow);
  };


  self.title = function(newTitleText, headerBar) {
    if (isDefined(newTitleText)) {
      newTitleText = newTitleText || '';
      headerBar = headerBar || getOnScreenHeaderBar();
      headerBar && headerBar.title(newTitleText);
      $scope.$title = newTitleText;
      $ionicHistory.currentTitle(newTitleText);
    }
    return $scope.$title;
  };


  self.align = function(val, headerBar) {
    headerBar = headerBar || getOnScreenHeaderBar();
    headerBar && headerBar.controller().align(val);
  };


  self.hasTabsTop = function(isTabsTop) {
    $element[isTabsTop ? 'addClass' : 'removeClass']('nav-bar-tabs-top');
  };

  self.hasBarSubheader = function(isBarSubheader) {
    $element[isBarSubheader ? 'addClass' : 'removeClass']('nav-bar-has-subheader');
  };

  // DEPRECATED, as of v1.0.0-beta14 -------
  self.changeTitle = function(val) {
    deprecatedWarning('changeTitle(val)', 'title(val)');
    self.title(val);
  };
  self.setTitle = function(val) {
    deprecatedWarning('setTitle(val)', 'title(val)');
    self.title(val);
  };
  self.getTitle = function() {
    deprecatedWarning('getTitle()', 'title()');
    return self.title();
  };
  self.back = function() {
    deprecatedWarning('back()', '$ionicHistory.goBack()');
    $ionicHistory.goBack();
  };
  self.getPreviousTitle = function() {
    deprecatedWarning('getPreviousTitle()', '$ionicHistory.backTitle()');
    $ionicHistory.goBack();
  };
  function deprecatedWarning(oldMethod, newMethod) {
    var warn = console.warn || console.log;
    warn && warn.call(console, 'navBarController.' + oldMethod + ' is deprecated, please use ' + newMethod + ' instead');
  }
  // END DEPRECATED -------


  function createNavElement(type) {
    if (navElementHtml[type]) {
      return jqLite(navElementHtml[type]);
    }
  }


  function getOnScreenHeaderBar() {
    for (var x = 0; x < headerBars.length; x++) {
      if (headerBars[x].isActive) return headerBars[x];
    }
  }


  function getOffScreenHeaderBar() {
    for (var x = 0; x < headerBars.length; x++) {
      if (!headerBars[x].isActive) return headerBars[x];
    }
  }


  function navBarAttr(ctrl, val) {
    ctrl && ionic.DomUtil.cachedAttr(ctrl.containerEle(), 'nav-bar', val);
  }

  function navSwipeAttr(val) {
    ionic.DomUtil.cachedAttr($element, 'nav-swipe', val);
  }


  $scope.$on('$destroy', function() {
    $scope.$parent.$hasHeader = false;
    $element.parent().removeData(DATA_NAV_BAR_CTRL);
    for (var x = 0; x < headerBars.length; x++) {
      headerBars[x].destroy();
    }
    $element.remove();
    $element = headerBars = null;
    deregisterInstance();
  });

}]);

IonicModule
.controller('$ionicNavView', [
  '$scope',
  '$element',
  '$attrs',
  '$compile',
  '$controller',
  '$ionicNavBarDelegate',
  '$ionicNavViewDelegate',
  '$ionicHistory',
  '$ionicViewSwitcher',
  '$ionicConfig',
  '$ionicScrollDelegate',
function($scope, $element, $attrs, $compile, $controller, $ionicNavBarDelegate, $ionicNavViewDelegate, $ionicHistory, $ionicViewSwitcher, $ionicConfig, $ionicScrollDelegate) {

  var DATA_ELE_IDENTIFIER = '$eleId';
  var DATA_DESTROY_ELE = '$destroyEle';
  var DATA_NO_CACHE = '$noCache';
  var VIEW_STATUS_ACTIVE = 'active';
  var VIEW_STATUS_CACHED = 'cached';

  var self = this;
  var direction;
  var isPrimary = false;
  var navBarDelegate;
  var activeEleId;
  var navViewAttr = $ionicViewSwitcher.navViewAttr;
  var disableRenderStartViewId, disableAnimation;
  var transitionDuration, transitionTiming;

  self.scope = $scope;
  self.element = $element;

  self.init = function() {
    var navViewName = $attrs.name || '';

    // Find the details of the parent view directive (if any) and use it
    // to derive our own qualified view name, then hang our own details
    // off the DOM so child directives can find it.
    var parent = $element.parent().inheritedData('$uiView');
    var parentViewName = ((parent && parent.state) ? parent.state.name : '');
    if (navViewName.indexOf('@') < 0) navViewName  = navViewName + '@' + parentViewName;

    var viewData = { name: navViewName, state: null };
    $element.data('$uiView', viewData);

    var deregisterInstance = $ionicNavViewDelegate._registerInstance(self, $attrs.delegateHandle);
    $scope.$on('$destroy', function() {
      deregisterInstance();

      // ensure no scrolls have been left frozen
      if (self.isSwipeFreeze) {
        $ionicScrollDelegate.freezeAllScrolls(false);
      }
    });

    $scope.$on('$ionicHistory.deselect', self.cacheCleanup);
    $scope.$on('$ionicTabs.top', onTabsTop);
    $scope.$on('$ionicSubheader', onBarSubheader);

    $scope.$on('$ionicTabs.beforeLeave', onTabsLeave);
    $scope.$on('$ionicTabs.afterLeave', onTabsLeave);
    $scope.$on('$ionicTabs.leave', onTabsLeave);

    ionic.Platform.ready(function() {
      if (ionic.Platform.isWebView() && $ionicConfig.views.swipeBackEnabled()) {
        self.initSwipeBack();
      }
    });

    return viewData;
  };


  self.register = function(viewLocals) {
    var leavingView = extend({}, $ionicHistory.currentView());

    // register that a view is coming in and get info on how it should transition
    var registerData = $ionicHistory.register($scope, viewLocals);

    // update which direction
    self.update(registerData);

    // begin rendering and transitioning
    var enteringView = $ionicHistory.getViewById(registerData.viewId) || {};

    var renderStart = (disableRenderStartViewId !== registerData.viewId);
    self.render(registerData, viewLocals, enteringView, leavingView, renderStart, true);
  };


  self.update = function(registerData) {
    // always reset that this is the primary navView
    isPrimary = true;

    // remember what direction this navView should use
    // this may get updated later by a child navView
    direction = registerData.direction;

    var parentNavViewCtrl = $element.parent().inheritedData('$ionNavViewController');
    if (parentNavViewCtrl) {
      // this navView is nested inside another one
      // update the parent to use this direction and not
      // the other it originally was set to

      // inform the parent navView that it is not the primary navView
      parentNavViewCtrl.isPrimary(false);

      if (direction === 'enter' || direction === 'exit') {
        // they're entering/exiting a history
        // find parent navViewController
        parentNavViewCtrl.direction(direction);

        if (direction === 'enter') {
          // reset the direction so this navView doesn't animate
          // because it's parent will
          direction = 'none';
        }
      }
    }
  };


  self.render = function(registerData, viewLocals, enteringView, leavingView, renderStart, renderEnd) {
    // register the view and figure out where it lives in the various
    // histories and nav stacks, along with how views should enter/leave
    var switcher = $ionicViewSwitcher.create(self, viewLocals, enteringView, leavingView, renderStart, renderEnd);

    // init the rendering of views for this navView directive
    switcher.init(registerData, function() {
      // the view is now compiled, in the dom and linked, now lets transition the views.
      // this uses a callback incase THIS nav-view has a nested nav-view, and after the NESTED
      // nav-view links, the NESTED nav-view would update which direction THIS nav-view should use

      // kick off the transition of views
      switcher.transition(self.direction(), registerData.enableBack, !disableAnimation);

      // reset private vars for next time
      disableRenderStartViewId = disableAnimation = null;
    });

  };


  self.beforeEnter = function(transitionData) {
    if (isPrimary) {
      // only update this nav-view's nav-bar if this is the primary nav-view
      navBarDelegate = transitionData.navBarDelegate;
      var associatedNavBarCtrl = getAssociatedNavBarCtrl();
      associatedNavBarCtrl && associatedNavBarCtrl.update(transitionData);
      navSwipeAttr('');
    }
  };


  self.activeEleId = function(eleId) {
    if (arguments.length) {
      activeEleId = eleId;
    }
    return activeEleId;
  };


  self.transitionEnd = function() {
    var viewElements = $element.children();
    var x, l, viewElement;

    for (x = 0, l = viewElements.length; x < l; x++) {
      viewElement = viewElements.eq(x);

      if (viewElement.data(DATA_ELE_IDENTIFIER) === activeEleId) {
        // this is the active element
        navViewAttr(viewElement, VIEW_STATUS_ACTIVE);

      } else if (navViewAttr(viewElement) === 'leaving' || navViewAttr(viewElement) === VIEW_STATUS_ACTIVE || navViewAttr(viewElement) === VIEW_STATUS_CACHED) {
        // this is a leaving element or was the former active element, or is an cached element
        if (viewElement.data(DATA_DESTROY_ELE) || viewElement.data(DATA_NO_CACHE)) {
          // this element shouldn't stay cached
          $ionicViewSwitcher.destroyViewEle(viewElement);

        } else {
          // keep in the DOM, mark as cached
          navViewAttr(viewElement, VIEW_STATUS_CACHED);

          // disconnect the leaving scope
          ionic.Utils.disconnectScope(viewElement.scope());
        }
      }
    }

    navSwipeAttr('');

    // ensure no scrolls have been left frozen
    if (self.isSwipeFreeze) {
      $ionicScrollDelegate.freezeAllScrolls(false);
    }
  };


  function onTabsLeave(ev, data) {
    var viewElements = $element.children();
    var viewElement, viewScope;

    for (var x = 0, l = viewElements.length; x < l; x++) {
      viewElement = viewElements.eq(x);
      if (navViewAttr(viewElement) == VIEW_STATUS_ACTIVE) {
        viewScope = viewElement.scope();
        viewScope && viewScope.$emit(ev.name.replace('Tabs', 'View'), data);
        break;
      }
    }
  }


  self.cacheCleanup = function() {
    var viewElements = $element.children();
    for (var x = 0, l = viewElements.length; x < l; x++) {
      if (viewElements.eq(x).data(DATA_DESTROY_ELE)) {
        $ionicViewSwitcher.destroyViewEle(viewElements.eq(x));
      }
    }
  };


  self.clearCache = function() {
    var viewElements = $element.children();
    var viewElement, viewScope;

    for (var x = 0, l = viewElements.length; x < l; x++) {
      viewElement = viewElements.eq(x);
      if (navViewAttr(viewElement) == VIEW_STATUS_CACHED) {
        $ionicViewSwitcher.destroyViewEle(viewElement);
      } else if (navViewAttr(viewElement) == VIEW_STATUS_ACTIVE) {
        viewScope = viewElement.scope();
        viewScope && viewScope.$broadcast('$ionicView.clearCache');
      }
    }
  };


  self.getViewElements = function() {
    return $element.children();
  };


  self.appendViewElement = function(viewEle, viewLocals) {
    // compile the entering element and get the link function
    var linkFn = $compile(viewEle);

    $element.append(viewEle);

    var viewScope = $scope.$new();

    if (viewLocals && viewLocals.$$controller) {
      viewLocals.$scope = viewScope;
      var controller = $controller(viewLocals.$$controller, viewLocals);
      $element.children().data('$ngControllerController', controller);
    }

    linkFn(viewScope);

    return viewScope;
  };


  self.title = function(val) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.title(val);
  };


  /**
   * @ngdoc method
   * @name $ionicNavView#enableBackButton
   * @description Enable/disable if the back button can be shown or not. For
   * example, the very first view in the navigation stack would not have a
   * back view, so the back button would be disabled.
   */
  self.enableBackButton = function(shouldEnable) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.enableBackButton(shouldEnable);
  };


  /**
   * @ngdoc method
   * @name $ionicNavView#showBackButton
   * @description Show/hide the nav bar active back button. If the back button
   * is not possible this will not force the back button to show. The
   * `enableBackButton()` method handles if a back button is even possible or not.
   */
  self.showBackButton = function(shouldShow) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.showActiveBackButton(shouldShow);
  };


  self.showBar = function(val) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.showBar(val);
  };


  self.isPrimary = function(val) {
    if (arguments.length) {
      isPrimary = val;
    }
    return isPrimary;
  };


  self.direction = function(val) {
    if (arguments.length) {
      direction = val;
    }
    return direction;
  };


  self.initSwipeBack = function() {
    var swipeBackHitWidth = $ionicConfig.views.swipeBackHitWidth();
    var viewTransition, associatedNavBarCtrl, backView;
    var deregDragStart, deregDrag, deregRelease;
    var windowWidth, startDragX, dragPoints;

    function onDragStart(ev) {
      if (!isPrimary) return;

      startDragX = getDragX(ev);
      if (startDragX > swipeBackHitWidth) return;

      backView = $ionicHistory.backView();

      if (!backView || backView.historyId !== $ionicHistory.currentView().historyId) return;

      if (!windowWidth) windowWidth = window.innerWidth;

      self.isSwipeFreeze = $ionicScrollDelegate.freezeAllScrolls(true);

      var registerData = {
        direction: 'back'
      };

      dragPoints = [];

      var switcher = $ionicViewSwitcher.create(self, registerData, backView, $ionicHistory.currentView(), true, false);
      switcher.loadViewElements(registerData);
      switcher.render(registerData);

      viewTransition = switcher.transition('back', $ionicHistory.enabledBack(backView), true);

      associatedNavBarCtrl = getAssociatedNavBarCtrl();

      deregDrag = ionic.onGesture('drag', onDrag, $element[0]);
      deregRelease = ionic.onGesture('release', onRelease, $element[0]);
    }

    function onDrag(ev) {
      if (isPrimary && viewTransition) {
        var dragX = getDragX(ev);

        dragPoints.push({
          t: Date.now(),
          x: dragX
        });

        if (dragX >= windowWidth - 15) {
          onRelease(ev);

        } else {
          var step = Math.min(Math.max(getSwipeCompletion(dragX), 0), 1);
          viewTransition.run(step);
          associatedNavBarCtrl && associatedNavBarCtrl.activeTransition && associatedNavBarCtrl.activeTransition.run(step);
        }

      }
    }

    function onRelease(ev) {
      if (isPrimary && viewTransition && dragPoints && dragPoints.length > 1) {

        var now = Date.now();
        var releaseX = getDragX(ev);
        var startDrag = dragPoints[dragPoints.length - 1];

        for (var x = dragPoints.length - 2; x >= 0; x--) {
          if (now - startDrag.t > 200) {
            break;
          }
          startDrag = dragPoints[x];
        }

        var isSwipingRight = (releaseX >= dragPoints[dragPoints.length - 2].x);
        var releaseSwipeCompletion = getSwipeCompletion(releaseX);
        var velocity = Math.abs(startDrag.x - releaseX) / (now - startDrag.t);

        // private variables because ui-router has no way to pass custom data using $state.go
        disableRenderStartViewId = backView.viewId;
        disableAnimation = (releaseSwipeCompletion < 0.03 || releaseSwipeCompletion > 0.97);

        if (isSwipingRight && (releaseSwipeCompletion > 0.5 || velocity > 0.1)) {
          var speed = (velocity > 0.5 || velocity < 0.05 || releaseX > windowWidth - 45) ? 'fast' : 'slow';
          navSwipeAttr(disableAnimation ? '' : speed);
          backView.go();
          associatedNavBarCtrl && associatedNavBarCtrl.activeTransition && associatedNavBarCtrl.activeTransition.complete(!disableAnimation, speed);

        } else {
          navSwipeAttr(disableAnimation ? '' : 'fast');
          disableRenderStartViewId = null;
          viewTransition.cancel(!disableAnimation);
          associatedNavBarCtrl && associatedNavBarCtrl.activeTransition && associatedNavBarCtrl.activeTransition.cancel(!disableAnimation, 'fast');
          disableAnimation = null;
        }

      }

      ionic.offGesture(deregDrag, 'drag', onDrag);
      ionic.offGesture(deregRelease, 'release', onRelease);

      windowWidth = viewTransition = dragPoints = null;

      self.isSwipeFreeze = $ionicScrollDelegate.freezeAllScrolls(false);
    }

    function getDragX(ev) {
      return ionic.tap.pointerCoord(ev.gesture.srcEvent).x;
    }

    function getSwipeCompletion(dragX) {
      return (dragX - startDragX) / windowWidth;
    }

    deregDragStart = ionic.onGesture('dragstart', onDragStart, $element[0]);

    $scope.$on('$destroy', function() {
      ionic.offGesture(deregDragStart, 'dragstart', onDragStart);
      ionic.offGesture(deregDrag, 'drag', onDrag);
      ionic.offGesture(deregRelease, 'release', onRelease);
      self.element = viewTransition = associatedNavBarCtrl = null;
    });
  };


  function navSwipeAttr(val) {
    ionic.DomUtil.cachedAttr($element, 'nav-swipe', val);
  }


  function onTabsTop(ev, isTabsTop) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.hasTabsTop(isTabsTop);
  }

  function onBarSubheader(ev, isBarSubheader) {
    var associatedNavBarCtrl = getAssociatedNavBarCtrl();
    associatedNavBarCtrl && associatedNavBarCtrl.hasBarSubheader(isBarSubheader);
  }

  function getAssociatedNavBarCtrl() {
    if (navBarDelegate) {
      for (var x=0; x < $ionicNavBarDelegate._instances.length; x++) {
        if ($ionicNavBarDelegate._instances[x].$$delegateHandle == navBarDelegate) {
          return $ionicNavBarDelegate._instances[x];
        }
      }
    }
    return $element.inheritedData('$ionNavBarController');
  }

}]);

IonicModule
.controller('$ionicRefresher', [
  '$scope',
  '$attrs',
  '$element',
  '$ionicBind',
  '$timeout',
  function($scope, $attrs,  $element, $ionicBind, $timeout) {
    var self = this,
        isDragging = false,
        isOverscrolling = false,
        dragOffset = 0,
        lastOverscroll = 0,
        ptrThreshold = 60,
        activated = false,
        scrollTime = 500,
        startY = null,
        deltaY = null,
        canOverscroll = true,
        scrollParent,
        scrollChild;

    if (!isDefined($attrs.pullingIcon)) {
      $attrs.$set('pullingIcon', 'ion-android-arrow-down');
    }

    $scope.showSpinner = !isDefined($attrs.refreshingIcon) && $attrs.spinner != 'none';

    $scope.showIcon = isDefined($attrs.refreshingIcon);

    $ionicBind($scope, $attrs, {
      pullingIcon: '@',
      pullingText: '@',
      refreshingIcon: '@',
      refreshingText: '@',
      spinner: '@',
      disablePullingRotation: '@',
      $onRefresh: '&onRefresh',
      $onPulling: '&onPulling'
    });

    function handleTouchend() {
      // if this wasn't an overscroll, get out immediately
      if (!canOverscroll && !isDragging) {
        return;
      }
      // reset Y
      startY = null;
      // the user has overscrolled but went back to native scrolling
      if (!isDragging) {
        dragOffset = 0;
        isOverscrolling = false;
        setScrollLock(false);
        return true;
      }
      isDragging = false;
      dragOffset = 0;

      // the user has scroll far enough to trigger a refresh
      if (lastOverscroll > ptrThreshold) {
        start();
        scrollTo(ptrThreshold, scrollTime);

      // the user has overscrolled but not far enough to trigger a refresh
      } else {
        scrollTo(0, scrollTime, deactivate);
        isOverscrolling = false;
      }
      return true;
    }

    function handleTouchmove(e) {
      // if multitouch or regular scroll event, get out immediately
      if (!canOverscroll || e.touches.length > 1) {
        return;
      }
      //if this is a new drag, keep track of where we start
      if (startY === null) {
        startY = parseInt(e.touches[0].screenY, 10);
      }

      // how far have we dragged so far?
      deltaY = parseInt(e.touches[0].screenY, 10) - startY;

      // if we've dragged up and back down in to native scroll territory
      if (deltaY - dragOffset <= 0 || scrollParent.scrollTop !== 0) {

        if (isOverscrolling) {
          isOverscrolling = false;
          setScrollLock(false);
        }

        if (isDragging) {
          nativescroll(scrollParent,parseInt(deltaY - dragOffset, 10) * -1);
        }

        // if we're not at overscroll 0 yet, 0 out
        if (lastOverscroll !== 0) {
          overscroll(0);
        }

        return true;

      } else if (deltaY > 0 && scrollParent.scrollTop === 0 && !isOverscrolling) {
        // starting overscroll, but drag started below scrollTop 0, so we need to offset the position
        dragOffset = deltaY;
      }

      // prevent native scroll events while overscrolling
      e.preventDefault();

      // if not overscrolling yet, initiate overscrolling
      if (!isOverscrolling) {
        isOverscrolling = true;
        setScrollLock(true);
      }

      isDragging = true;
      // overscroll according to the user's drag so far
      overscroll(parseInt((deltaY - dragOffset) / 3, 10));

      // update the icon accordingly
      if (!activated && lastOverscroll > ptrThreshold) {
        activated = true;
        ionic.requestAnimationFrame(activate);

      } else if (activated && lastOverscroll < ptrThreshold) {
        activated = false;
        ionic.requestAnimationFrame(deactivate);
      }
    }

    function handleScroll(e) {
      // canOverscrol is used to greatly simplify the drag handler during normal scrolling
      canOverscroll = (e.target.scrollTop === 0) || isDragging;
    }

    function overscroll(val) {
      scrollChild.style[ionic.CSS.TRANSFORM] = 'translateY(' + val + 'px)';
      lastOverscroll = val;
    }

    function nativescroll(target, newScrollTop) {
      // creates a scroll event that bubbles, can be cancelled, and with its view
      // and detail property initialized to window and 1, respectively
      target.scrollTop = newScrollTop;
      var e = document.createEvent("UIEvents");
      e.initUIEvent("scroll", true, true, window, 1);
      target.dispatchEvent(e);
    }

    function setScrollLock(enabled) {
      // set the scrollbar to be position:fixed in preparation to overscroll
      // or remove it so the app can be natively scrolled
      if (enabled) {
        ionic.requestAnimationFrame(function() {
          scrollChild.classList.add('overscroll');
          show();
        });

      } else {
        ionic.requestAnimationFrame(function() {
          scrollChild.classList.remove('overscroll');
          hide();
          deactivate();
        });
      }
    }

    $scope.$on('scroll.refreshComplete', function() {
      // prevent the complete from firing before the scroll has started
      $timeout(function() {

        ionic.requestAnimationFrame(tail);

        // scroll back to home during tail animation
        scrollTo(0, scrollTime, deactivate);

        // return to native scrolling after tail animation has time to finish
        $timeout(function() {

          if (isOverscrolling) {
            isOverscrolling = false;
            setScrollLock(false);
          }

        }, scrollTime);

      }, scrollTime);
    });

    function scrollTo(Y, duration, callback) {
      // scroll animation loop w/ easing
      // credit https://gist.github.com/dezinezync/5487119
      var start = Date.now(),
          from = lastOverscroll;

      if (from === Y) {
        callback();
        return; /* Prevent scrolling to the Y point if already there */
      }

      // decelerating to zero velocity
      function easeOutCubic(t) {
        return (--t) * t * t + 1;
      }

      // scroll loop
      function scroll() {
        var currentTime = Date.now(),
          time = Math.min(1, ((currentTime - start) / duration)),
          // where .5 would be 50% of time on a linear scale easedT gives a
          // fraction based on the easing method
          easedT = easeOutCubic(time);

        overscroll(parseInt((easedT * (Y - from)) + from, 10));

        if (time < 1) {
          ionic.requestAnimationFrame(scroll);

        } else {

          if (Y < 5 && Y > -5) {
            isOverscrolling = false;
            setScrollLock(false);
          }

          callback && callback();
        }
      }

      // start scroll loop
      ionic.requestAnimationFrame(scroll);
    }


    self.init = function() {
      scrollParent = $element.parent().parent()[0];
      scrollChild = $element.parent()[0];

      if (!scrollParent.classList.contains('ionic-scroll') ||
          !scrollChild.classList.contains('scroll')) {
        throw new Error('Refresher must be immediate child of ion-content or ion-scroll');
      }

      ionic.on('touchmove', handleTouchmove, scrollChild);
      ionic.on('touchend', handleTouchend, scrollChild);
      ionic.on('scroll', handleScroll, scrollParent);

      // cleanup when done
      $scope.$on('$destroy', destroy);
    };

    function destroy() {
      ionic.off('touchmove', handleTouchmove, scrollChild);
      ionic.off('touchend', handleTouchend, scrollChild);
      ionic.off('scroll', handleScroll, scrollParent);
      scrollParent = null;
      scrollChild = null;
    }

    // DOM manipulation and broadcast methods shared by JS and Native Scrolling
    // getter used by JS Scrolling
    self.getRefresherDomMethods = function() {
      return {
        activate: activate,
        deactivate: deactivate,
        start: start,
        show: show,
        hide: hide,
        tail: tail
      };
    };

    function activate() {
      $element[0].classList.add('active');
      $scope.$onPulling();
    }

    function deactivate() {
      // give tail 150ms to finish
      $timeout(function() {
        // deactivateCallback
        $element.removeClass('active refreshing refreshing-tail');
        if (activated) activated = false;
      }, 150);
    }

    function start() {
      // startCallback
      $element[0].classList.add('refreshing');
      $scope.$onRefresh();
    }

    function show() {
      // showCallback
      $element[0].classList.remove('invisible');
    }

    function  hide() {
      // showCallback
      $element[0].classList.add('invisible');
    }

    function tail() {
      // tailCallback
      $element[0].classList.add('refreshing-tail');
    }

    // for testing
    self.__handleTouchmove = handleTouchmove;
    self.__getScrollChild = function() { return scrollChild; };
    self.__getScrollParent= function() { return scrollParent; };
  }
]);

/**
 * @private
 */
IonicModule

.controller('$ionicScroll', [
  '$scope',
  'scrollViewOptions',
  '$timeout',
  '$window',
  '$location',
  '$document',
  '$ionicScrollDelegate',
  '$ionicHistory',
function($scope,
         scrollViewOptions,
         $timeout,
         $window,
         $location,
         $document,
         $ionicScrollDelegate,
         $ionicHistory) {

  var self = this;
  // for testing
  self.__timeout = $timeout;

  self._scrollViewOptions = scrollViewOptions; //for testing

  var element = self.element = scrollViewOptions.el;
  var $element = self.$element = jqLite(element);
  var scrollView = self.scrollView = new ionic.views.Scroll(scrollViewOptions);

  //Attach self to element as a controller so other directives can require this controller
  //through `require: '$ionicScroll'
  //Also attach to parent so that sibling elements can require this
  ($element.parent().length ? $element.parent() : $element)
    .data('$$ionicScrollController', self);

  var deregisterInstance = $ionicScrollDelegate._registerInstance(
    self, scrollViewOptions.delegateHandle, function() {
      return $ionicHistory.isActiveScope($scope);
    }
  );

  if (!isDefined(scrollViewOptions.bouncing)) {
    ionic.Platform.ready(function() {
      if (scrollView.options) {
        scrollView.options.bouncing = true;
        if (ionic.Platform.isAndroid()) {
          // No bouncing by default on Android
          scrollView.options.bouncing = false;
          // Faster scroll decel
          scrollView.options.deceleration = 0.95;
        }
      }
    });
  }

  var resize = angular.bind(scrollView, scrollView.resize);
  angular.element($window).on('resize', resize);

  var scrollFunc = function(e) {
    var detail = (e.originalEvent || e).detail || {};
    $scope.$onScroll && $scope.$onScroll({
      event: e,
      scrollTop: detail.scrollTop || 0,
      scrollLeft: detail.scrollLeft || 0
    });
  };

  $element.on('scroll', scrollFunc);

  $scope.$on('$destroy', function() {
    deregisterInstance();
    scrollView && scrollView.__cleanup && scrollView.__cleanup();
    angular.element($window).off('resize', resize);
    $element.off('scroll', scrollFunc);
    scrollView = self.scrollView = scrollViewOptions = self._scrollViewOptions = scrollViewOptions.el = self._scrollViewOptions.el = $element = self.$element = element = null;
  });

  $timeout(function() {
    scrollView && scrollView.run && scrollView.run();
  });

  self.getScrollView = function() {
    return scrollView;
  };

  self.getScrollPosition = function() {
    return scrollView.getValues();
  };

  self.resize = function() {
    return $timeout(resize).then(function() {
      $element && $element.triggerHandler('scroll.resize');
    });
  };

  self.scrollTop = function(shouldAnimate) {
    self.resize().then(function() {
      scrollView.scrollTo(0, 0, !!shouldAnimate);
    });
  };

  self.scrollBottom = function(shouldAnimate) {
    self.resize().then(function() {
      var max = scrollView.getScrollMax();
      scrollView.scrollTo(max.left, max.top, !!shouldAnimate);
    });
  };

  self.scrollTo = function(left, top, shouldAnimate) {
    self.resize().then(function() {
      scrollView.scrollTo(left, top, !!shouldAnimate);
    });
  };

  self.zoomTo = function(zoom, shouldAnimate, originLeft, originTop) {
    self.resize().then(function() {
      scrollView.zoomTo(zoom, !!shouldAnimate, originLeft, originTop);
    });
  };

  self.zoomBy = function(zoom, shouldAnimate, originLeft, originTop) {
    self.resize().then(function() {
      scrollView.zoomBy(zoom, !!shouldAnimate, originLeft, originTop);
    });
  };

  self.scrollBy = function(left, top, shouldAnimate) {
    self.resize().then(function() {
      scrollView.scrollBy(left, top, !!shouldAnimate);
    });
  };

  self.anchorScroll = function(shouldAnimate) {
    self.resize().then(function() {
      var hash = $location.hash();
      var elm = hash && $document[0].getElementById(hash);
      if (!(hash && elm)) {
        scrollView.scrollTo(0,0, !!shouldAnimate);
        return;
      }
      var curElm = elm;
      var scrollLeft = 0, scrollTop = 0, levelsClimbed = 0;
      do {
        if (curElm !== null) scrollLeft += curElm.offsetLeft;
        if (curElm !== null) scrollTop += curElm.offsetTop;
        curElm = curElm.offsetParent;
        levelsClimbed++;
      } while (curElm.attributes != self.element.attributes && curElm.offsetParent);
      scrollView.scrollTo(scrollLeft, scrollTop, !!shouldAnimate);
    });
  };

  self.freezeScroll = scrollView.freeze;

  self.freezeAllScrolls = function(shouldFreeze) {
    for (var i = 0; i < $ionicScrollDelegate._instances.length; i++) {
      $ionicScrollDelegate._instances[i].freezeScroll(shouldFreeze);
    }
  };


  /**
   * @private
   */
  self._setRefresher = function(refresherScope, refresherElement, refresherMethods) {
    self.refresher = refresherElement;
    var refresherHeight = self.refresher.clientHeight || 60;
    scrollView.activatePullToRefresh(
      refresherHeight,
      refresherMethods
    );
  };

}]);

IonicModule
.controller('$ionicSideMenus', [
  '$scope',
  '$attrs',
  '$ionicSideMenuDelegate',
  '$ionicPlatform',
  '$ionicBody',
  '$ionicHistory',
  '$ionicScrollDelegate',
function($scope, $attrs, $ionicSideMenuDelegate, $ionicPlatform, $ionicBody, $ionicHistory, $ionicScrollDelegate) {
  var self = this;
  var rightShowing, leftShowing, isDragging;
  var startX, lastX, offsetX, isAsideExposed;
  var enableMenuWithBackViews = true;

  self.$scope = $scope;

  self.initialize = function(options) {
    self.left = options.left;
    self.right = options.right;
    self.setContent(options.content);
    self.dragThresholdX = options.dragThresholdX || 10;
    $ionicHistory.registerHistory(self.$scope);
  };

  /**
   * Set the content view controller if not passed in the constructor options.
   *
   * @param {object} content
   */
  self.setContent = function(content) {
    if (content) {
      self.content = content;

      self.content.onDrag = function(e) {
        self._handleDrag(e);
      };

      self.content.endDrag = function(e) {
        self._endDrag(e);
      };
    }
  };

  self.isOpenLeft = function() {
    return self.getOpenAmount() > 0;
  };

  self.isOpenRight = function() {
    return self.getOpenAmount() < 0;
  };

  /**
   * Toggle the left menu to open 100%
   */
  self.toggleLeft = function(shouldOpen) {
    if (isAsideExposed || !self.left.isEnabled) return;
    var openAmount = self.getOpenAmount();
    if (arguments.length === 0) {
      shouldOpen = openAmount <= 0;
    }
    self.content.enableAnimation();
    if (!shouldOpen) {
      self.openPercentage(0);
    } else {
      self.openPercentage(100);
    }
  };

  /**
   * Toggle the right menu to open 100%
   */
  self.toggleRight = function(shouldOpen) {
    if (isAsideExposed || !self.right.isEnabled) return;
    var openAmount = self.getOpenAmount();
    if (arguments.length === 0) {
      shouldOpen = openAmount >= 0;
    }
    self.content.enableAnimation();
    if (!shouldOpen) {
      self.openPercentage(0);
    } else {
      self.openPercentage(-100);
    }
  };

  self.toggle = function(side) {
    if (side == 'right') {
      self.toggleRight();
    } else {
      self.toggleLeft();
    }
  };

  /**
   * Close all menus.
   */
  self.close = function() {
    self.openPercentage(0);
  };

  /**
   * @return {float} The amount the side menu is open, either positive or negative for left (positive), or right (negative)
   */
  self.getOpenAmount = function() {
    return self.content && self.content.getTranslateX() || 0;
  };

  /**
   * @return {float} The ratio of open amount over menu width. For example, a
   * menu of width 100 open 50 pixels would be open 50% or a ratio of 0.5. Value is negative
   * for right menu.
   */
  self.getOpenRatio = function() {
    var amount = self.getOpenAmount();
    if (amount >= 0) {
      return amount / self.left.width;
    }
    return amount / self.right.width;
  };

  self.isOpen = function() {
    return self.getOpenAmount() !== 0;
  };

  /**
   * @return {float} The percentage of open amount over menu width. For example, a
   * menu of width 100 open 50 pixels would be open 50%. Value is negative
   * for right menu.
   */
  self.getOpenPercentage = function() {
    return self.getOpenRatio() * 100;
  };

  /**
   * Open the menu with a given percentage amount.
   * @param {float} percentage The percentage (positive or negative for left/right) to open the menu.
   */
  self.openPercentage = function(percentage) {
    var p = percentage / 100;

    if (self.left && percentage >= 0) {
      self.openAmount(self.left.width * p);
    } else if (self.right && percentage < 0) {
      var maxRight = self.right.width;
      self.openAmount(self.right.width * p);
    }

    // add the CSS class "menu-open" if the percentage does not
    // equal 0, otherwise remove the class from the body element
    $ionicBody.enableClass((percentage !== 0), 'menu-open');

    freezeAllScrolls(false);
  };

  function freezeAllScrolls(shouldFreeze) {
    if (shouldFreeze && !self.isScrollFreeze) {
      $ionicScrollDelegate.freezeAllScrolls(shouldFreeze);

    } else if (!shouldFreeze && self.isScrollFreeze) {
      $ionicScrollDelegate.freezeAllScrolls(false);
    }
    self.isScrollFreeze = shouldFreeze;
  }

  /**
   * Open the menu the given pixel amount.
   * @param {float} amount the pixel amount to open the menu. Positive value for left menu,
   * negative value for right menu (only one menu will be visible at a time).
   */
  self.openAmount = function(amount) {
    var maxLeft = self.left && self.left.width || 0;
    var maxRight = self.right && self.right.width || 0;

    // Check if we can move to that side, depending if the left/right panel is enabled
    if (!(self.left && self.left.isEnabled) && amount > 0) {
      self.content.setTranslateX(0);
      return;
    }

    if (!(self.right && self.right.isEnabled) && amount < 0) {
      self.content.setTranslateX(0);
      return;
    }

    if (leftShowing && amount > maxLeft) {
      self.content.setTranslateX(maxLeft);
      return;
    }

    if (rightShowing && amount < -maxRight) {
      self.content.setTranslateX(-maxRight);
      return;
    }

    self.content.setTranslateX(amount);

    if (amount >= 0) {
      leftShowing = true;
      rightShowing = false;

      if (amount > 0) {
        // Push the z-index of the right menu down
        self.right && self.right.pushDown && self.right.pushDown();
        // Bring the z-index of the left menu up
        self.left && self.left.bringUp && self.left.bringUp();
      }
    } else {
      rightShowing = true;
      leftShowing = false;

      // Bring the z-index of the right menu up
      self.right && self.right.bringUp && self.right.bringUp();
      // Push the z-index of the left menu down
      self.left && self.left.pushDown && self.left.pushDown();
    }
  };

  /**
   * Given an event object, find the final resting position of this side
   * menu. For example, if the user "throws" the content to the right and
   * releases the touch, the left menu should snap open (animated, of course).
   *
   * @param {Event} e the gesture event to use for snapping
   */
  self.snapToRest = function(e) {
    // We want to animate at the end of this
    self.content.enableAnimation();
    isDragging = false;

    // Check how much the panel is open after the drag, and
    // what the drag velocity is
    var ratio = self.getOpenRatio();

    if (ratio === 0) {
      // Just to be safe
      self.openPercentage(0);
      return;
    }

    var velocityThreshold = 0.3;
    var velocityX = e.gesture.velocityX;
    var direction = e.gesture.direction;

    // Going right, less than half, too slow (snap back)
    if (ratio > 0 && ratio < 0.5 && direction == 'right' && velocityX < velocityThreshold) {
      self.openPercentage(0);
    }

    // Going left, more than half, too slow (snap back)
    else if (ratio > 0.5 && direction == 'left' && velocityX < velocityThreshold) {
      self.openPercentage(100);
    }

    // Going left, less than half, too slow (snap back)
    else if (ratio < 0 && ratio > -0.5 && direction == 'left' && velocityX < velocityThreshold) {
      self.openPercentage(0);
    }

    // Going right, more than half, too slow (snap back)
    else if (ratio < 0.5 && direction == 'right' && velocityX < velocityThreshold) {
      self.openPercentage(-100);
    }

    // Going right, more than half, or quickly (snap open)
    else if (direction == 'right' && ratio >= 0 && (ratio >= 0.5 || velocityX > velocityThreshold)) {
      self.openPercentage(100);
    }

    // Going left, more than half, or quickly (span open)
    else if (direction == 'left' && ratio <= 0 && (ratio <= -0.5 || velocityX > velocityThreshold)) {
      self.openPercentage(-100);
    }

    // Snap back for safety
    else {
      self.openPercentage(0);
    }
  };

  self.enableMenuWithBackViews = function(val) {
    if (arguments.length) {
      enableMenuWithBackViews = !!val;
    }
    return enableMenuWithBackViews;
  };

  self.isAsideExposed = function() {
    return !!isAsideExposed;
  };

  self.exposeAside = function(shouldExposeAside) {
    if (!(self.left && self.left.isEnabled) && !(self.right && self.right.isEnabled)) return;
    self.close();

    isAsideExposed = shouldExposeAside;
    if (self.left && self.left.isEnabled) {
      // set the left marget width if it should be exposed
      // otherwise set false so there's no left margin
      self.content.setMarginLeft(isAsideExposed ? self.left.width : 0);
    } else if (self.right && self.right.isEnabled) {
      self.content.setMarginRight(isAsideExposed ? self.right.width : 0);
    }

    self.$scope.$emit('$ionicExposeAside', isAsideExposed);
  };

  self.activeAsideResizing = function(isResizing) {
    $ionicBody.enableClass(isResizing, 'aside-resizing');
  };

  // End a drag with the given event
  self._endDrag = function(e) {
    freezeAllScrolls(false);

    if (isAsideExposed) return;

    if (isDragging) {
      self.snapToRest(e);
    }
    startX = null;
    lastX = null;
    offsetX = null;
  };

  // Handle a drag event
  self._handleDrag = function(e) {
    if (isAsideExposed || !$scope.dragContent) return;

    // If we don't have start coords, grab and store them
    if (!startX) {
      startX = e.gesture.touches[0].pageX;
      lastX = startX;
    } else {
      // Grab the current tap coords
      lastX = e.gesture.touches[0].pageX;
    }

    // Calculate difference from the tap points
    if (!isDragging && Math.abs(lastX - startX) > self.dragThresholdX) {
      // if the difference is greater than threshold, start dragging using the current
      // point as the starting point
      startX = lastX;

      isDragging = true;
      // Initialize dragging
      self.content.disableAnimation();
      offsetX = self.getOpenAmount();
    }

    if (isDragging) {
      self.openAmount(offsetX + (lastX - startX));
      freezeAllScrolls(true);
    }
  };

  self.canDragContent = function(canDrag) {
    if (arguments.length) {
      $scope.dragContent = !!canDrag;
    }
    return $scope.dragContent;
  };

  self.edgeThreshold = 25;
  self.edgeThresholdEnabled = false;
  self.edgeDragThreshold = function(value) {
    if (arguments.length) {
      if (isNumber(value) && value > 0) {
        self.edgeThreshold = value;
        self.edgeThresholdEnabled = true;
      } else {
        self.edgeThresholdEnabled = !!value;
      }
    }
    return self.edgeThresholdEnabled;
  };

  self.isDraggableTarget = function(e) {
    //Only restrict edge when sidemenu is closed and restriction is enabled
    var shouldOnlyAllowEdgeDrag = self.edgeThresholdEnabled && !self.isOpen();
    var startX = e.gesture.startEvent && e.gesture.startEvent.center &&
      e.gesture.startEvent.center.pageX;

    var dragIsWithinBounds = !shouldOnlyAllowEdgeDrag ||
      startX <= self.edgeThreshold ||
      startX >= self.content.element.offsetWidth - self.edgeThreshold;

    var backView = $ionicHistory.backView();
    var menuEnabled = enableMenuWithBackViews ? true : !backView;
    if (!menuEnabled) {
      var currentView = $ionicHistory.currentView() || {};
      return backView.historyId !== currentView.historyId;
    }

    return ($scope.dragContent || self.isOpen()) &&
      dragIsWithinBounds &&
      !e.gesture.srcEvent.defaultPrevented &&
      menuEnabled &&
      !e.target.tagName.match(/input|textarea|select|object|embed/i) &&
      !e.target.isContentEditable &&
      !(e.target.dataset ? e.target.dataset.preventScroll : e.target.getAttribute('data-prevent-scroll') == 'true');
  };

  $scope.sideMenuContentTranslateX = 0;

  var deregisterBackButtonAction = noop;
  var closeSideMenu = angular.bind(self, self.close);

  $scope.$watch(function() {
    return self.getOpenAmount() !== 0;
  }, function(isOpen) {
    deregisterBackButtonAction();
    if (isOpen) {
      deregisterBackButtonAction = $ionicPlatform.registerBackButtonAction(
        closeSideMenu,
        PLATFORM_BACK_BUTTON_PRIORITY_SIDE_MENU
      );
    }
  });

  var deregisterInstance = $ionicSideMenuDelegate._registerInstance(
    self, $attrs.delegateHandle, function() {
      return $ionicHistory.isActiveScope($scope);
    }
  );

  $scope.$on('$destroy', function() {
    deregisterInstance();
    deregisterBackButtonAction();
    self.$scope = null;
    if (self.content) {
      self.content.element = null;
      self.content = null;
    }

    // ensure scrolls are unfrozen
    freezeAllScrolls(false);
  });

  self.initialize({
    left: {
      width: 275
    },
    right: {
      width: 275
    }
  });

}]);

(function(ionic) {

  var TRANSLATE32 = 'translate(32,32)';
  var STROKE_OPACITY = 'stroke-opacity';
  var ROUND = 'round';
  var INDEFINITE = 'indefinite';
  var DURATION = '750ms';
  var NONE = 'none';
  var SHORTCUTS = {
    a: 'animate',
    an: 'attributeName',
    at: 'animateTransform',
    c: 'circle',
    da: 'stroke-dasharray',
    os: 'stroke-dashoffset',
    f: 'fill',
    lc: 'stroke-linecap',
    rc: 'repeatCount',
    sw: 'stroke-width',
    t: 'transform',
    v: 'values'
  };

  var SPIN_ANIMATION = {
    v: '0,32,32;360,32,32',
    an: 'transform',
    type: 'rotate',
    rc: INDEFINITE,
    dur: DURATION
  };

  function createSvgElement(tagName, data, parent, spinnerName) {
    var ele = document.createElement(SHORTCUTS[tagName] || tagName);
    var k, x, y;

    for (k in data) {

      if (angular.isArray(data[k])) {
        for (x = 0; x < data[k].length; x++) {
          if (data[k][x].fn) {
            for (y = 0; y < data[k][x].t; y++) {
              createSvgElement(k, data[k][x].fn(y, spinnerName), ele, spinnerName);
            }
          } else {
            createSvgElement(k, data[k][x], ele, spinnerName);
          }
        }

      } else {
        setSvgAttribute(ele, k, data[k]);
      }
    }

    parent.appendChild(ele);
  }

  function setSvgAttribute(ele, k, v) {
    ele.setAttribute(SHORTCUTS[k] || k, v);
  }

  function animationValues(strValues, i) {
    var values = strValues.split(';');
    var back = values.slice(i);
    var front = values.slice(0, values.length - back.length);
    values = back.concat(front).reverse();
    return values.join(';') + ';' + values[0];
  }

  var IOS_SPINNER = {
    sw: 4,
    lc: ROUND,
    line: [{
      fn: function(i, spinnerName) {
        return {
          y1: spinnerName == 'ios' ? 17 : 12,
          y2: spinnerName == 'ios' ? 29 : 20,
          t: TRANSLATE32 + ' rotate(' + (30 * i + (i < 6 ? 180 : -180)) + ')',
          a: [{
            fn: function() {
              return {
                an: STROKE_OPACITY,
                dur: DURATION,
                v: animationValues('0;.1;.15;.25;.35;.45;.55;.65;.7;.85;1', i),
                rc: INDEFINITE
              };
            },
            t: 1
          }]
        };
      },
      t: 12
    }]
  };

  var spinners = {

    android: {
      c: [{
        sw: 6,
        da: 128,
        os: 82,
        r: 26,
        cx: 32,
        cy: 32,
        f: NONE
      }]
    },

    ios: IOS_SPINNER,

    'ios-small': IOS_SPINNER,

    bubbles: {
      sw: 0,
      c: [{
        fn: function(i) {
          return {
            cx: 24 * Math.cos(2 * Math.PI * i / 8),
            cy: 24 * Math.sin(2 * Math.PI * i / 8),
            t: TRANSLATE32,
            a: [{
              fn: function() {
                return {
                  an: 'r',
                  dur: DURATION,
                  v: animationValues('1;2;3;4;5;6;7;8', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            }]
          };
        },
        t: 8
      }]
    },

    circles: {

      c: [{
        fn: function(i) {
          return {
            r: 5,
            cx: 24 * Math.cos(2 * Math.PI * i / 8),
            cy: 24 * Math.sin(2 * Math.PI * i / 8),
            t: TRANSLATE32,
            sw: 0,
            a: [{
              fn: function() {
                return {
                  an: 'fill-opacity',
                  dur: DURATION,
                  v: animationValues('.3;.3;.3;.4;.7;.85;.9;1', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            }]
          };
        },
        t: 8
      }]
    },

    crescent: {
      c: [{
        sw: 4,
        da: 128,
        os: 82,
        r: 26,
        cx: 32,
        cy: 32,
        f: NONE,
        at: [SPIN_ANIMATION]
      }]
    },

    dots: {

      c: [{
        fn: function(i) {
          return {
            cx: 16 + (16 * i),
            cy: 32,
            sw: 0,
            a: [{
              fn: function() {
                return {
                  an: 'fill-opacity',
                  dur: DURATION,
                  v: animationValues('.5;.6;.8;1;.8;.6;.5', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            }, {
              fn: function() {
                return {
                  an: 'r',
                  dur: DURATION,
                  v: animationValues('4;5;6;5;4;3;3', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            }]
          };
        },
        t: 3
      }]
    },

    lines: {
      sw: 7,
      lc: ROUND,
      line: [{
        fn: function(i) {
          return {
            x1: 10 + (i * 14),
            x2: 10 + (i * 14),
            a: [{
              fn: function() {
                return {
                  an: 'y1',
                  dur: DURATION,
                  v: animationValues('16;18;28;18;16', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            },{
              fn: function() {
                return {
                  an: 'y2',
                  dur: DURATION,
                  v: animationValues('48;44;36;46;48', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            },{
              fn: function() {
                return {
                  an: STROKE_OPACITY,
                  dur: DURATION,
                  v: animationValues('1;.8;.5;.4;1', i),
                  rc: INDEFINITE
                };
              },
              t: 1
            }]
          };
        },
        t: 4
      }]
    },

    ripple: {
      f: NONE,
      'fill-rule': 'evenodd',
      sw: 3,
      circle: [{
        fn: function(i) {
          return {
            cx: 32,
            cy: 32,
            a: [{
              fn: function() {
                return {
                  an: 'r',
                  begin: (i * -1) + 's',
                  dur: '2s',
                  v: '0;24',
                  keyTimes: '0;1',
                  keySplines: '0.1,0.2,0.3,1',
                  calcMode: 'spline',
                  rc: INDEFINITE
                };
              },
              t: 1
            },{
              fn: function() {
                return {
                  an: STROKE_OPACITY,
                  begin: (i * -1) + 's',
                  dur: '2s',
                  v: '.2;1;.2;0',
                  rc: INDEFINITE
                };
              },
              t: 1
            }]
          };
        },
        t: 2
      }]
    },

    spiral: {
      defs: [{
        linearGradient: [{
          id: 'sGD',
          gradientUnits: 'userSpaceOnUse',
          x1: 55, y1: 46, x2: 2, y2: 46,
          stop: [{
            offset: 0.1,
            class: 'stop1'
          }, {
            offset: 1,
            class: 'stop2'
          }]
        }]
      }],
      g: [{
        sw: 4,
        lc: ROUND,
        f: NONE,
        path: [{
          stroke: 'url(#sGD)',
          d: 'M4,32 c0,15,12,28,28,28c8,0,16-4,21-9'
        }, {
          d: 'M60,32 C60,16,47.464,4,32,4S4,16,4,32'
        }],
        at: [SPIN_ANIMATION]
      }]
    }

  };

  var animations = {

    android: function(ele) {
      var rIndex = 0;
      var rotateCircle = 0;
      var startTime;
      var svgEle = ele.querySelector('g');
      var circleEle = ele.querySelector('circle');

      function run() {
        var v = easeInOutCubic(Date.now() - startTime, 650);
        var scaleX = 1;
        var translateX = 0;
        var dasharray = (188 - (58 * v));
        var dashoffset = (182 - (182 * v));

        if (rIndex % 2) {
          scaleX = -1;
          translateX = -64;
          dasharray = (128 - (-58 * v));
          dashoffset = (182 * v);
        }

        var rotateLine = [0, -101, -90, -11, -180, 79, -270, -191][rIndex];

        setSvgAttribute(circleEle, 'da', Math.max(Math.min(dasharray, 188), 128));
        setSvgAttribute(circleEle, 'os', Math.max(Math.min(dashoffset, 182), 0));
        setSvgAttribute(circleEle, 't', 'scale(' + scaleX + ',1) translate(' + translateX + ',0) rotate(' + rotateLine + ',32,32)');

        rotateCircle += 4.1;
        if (rotateCircle > 359) rotateCircle = 0;
        setSvgAttribute(svgEle, 't', 'rotate(' + rotateCircle + ',32,32)');

        if (v >= 1) {
          rIndex++;
          if (rIndex > 7) rIndex = 0;
          startTime = Date.now();
        }

        ionic.requestAnimationFrame(run);
      }

      return function() {
        startTime = Date.now();
        run();
      };

    }

  };

  function easeInOutCubic(t, c) {
    t /= c / 2;
    if (t < 1) return 1 / 2 * t * t * t;
    t -= 2;
    return 1 / 2 * (t * t * t + 2);
  }


  IonicModule
  .controller('$ionicSpinner', [
    '$element',
    '$attrs',
  function($element, $attrs) {
    var spinnerName, spinner;

    this.init = function() {
      spinnerName = $attrs.icon || ionic.Platform.platform();
      spinner = spinners[spinnerName];
      if (!spinner) {
        spinnerName = 'ios';
        spinner = spinners.ios;
      }

      var container = document.createElement('div');
      createSvgElement('svg', {
        viewBox: '0 0 64 64',
        g: [spinners[spinnerName]]
      }, container, spinnerName);

      // Specifically for animations to work,
      // Android 4.3 and below requires the element to be
      // added as an html string, rather than dynmically
      // building up the svg element and appending it.
      $element.html(container.innerHTML);

      this.start();

      return spinnerName;
    };

    this.start = function() {
      animations[spinnerName] && animations[spinnerName]($element[0])();
    };

  }]);

})(ionic);

IonicModule
.controller('$ionicTab', [
  '$scope',
  '$ionicHistory',
  '$attrs',
  '$location',
  '$state',
function($scope, $ionicHistory, $attrs, $location, $state) {
  this.$scope = $scope;

  //All of these exposed for testing
  this.hrefMatchesState = function() {
    return $attrs.href && $location.path().indexOf(
      $attrs.href.replace(/^#/, '').replace(/\/$/, '')
    ) === 0;
  };
  this.srefMatchesState = function() {
    return $attrs.uiSref && $state.includes($attrs.uiSref.split('(')[0]);
  };
  this.navNameMatchesState = function() {
    return this.navViewName && $ionicHistory.isCurrentStateNavView(this.navViewName);
  };

  this.tabMatchesState = function() {
    return this.hrefMatchesState() || this.srefMatchesState() || this.navNameMatchesState();
  };
}]);

IonicModule
.controller('$ionicTabs', [
  '$scope',
  '$element',
  '$ionicHistory',
function($scope, $element, $ionicHistory) {
  var self = this;
  var selectedTab = null;
  var previousSelectedTab = null;
  var selectedTabIndex;
  self.tabs = [];

  self.selectedIndex = function() {
    return self.tabs.indexOf(selectedTab);
  };
  self.selectedTab = function() {
    return selectedTab;
  };
  self.previousSelectedTab = function() {
    return previousSelectedTab;
  };

  self.add = function(tab) {
    $ionicHistory.registerHistory(tab);
    self.tabs.push(tab);
  };

  self.remove = function(tab) {
    var tabIndex = self.tabs.indexOf(tab);
    if (tabIndex === -1) {
      return;
    }
    //Use a field like '$tabSelected' so developers won't accidentally set it in controllers etc
    if (tab.$tabSelected) {
      self.deselect(tab);
      //Try to select a new tab if we're removing a tab
      if (self.tabs.length === 1) {
        //do nothing if there are no other tabs to select
      } else {
        //Select previous tab if it's the last tab, else select next tab
        var newTabIndex = tabIndex === self.tabs.length - 1 ? tabIndex - 1 : tabIndex + 1;
        self.select(self.tabs[newTabIndex]);
      }
    }
    self.tabs.splice(tabIndex, 1);
  };

  self.deselect = function(tab) {
    if (tab.$tabSelected) {
      previousSelectedTab = selectedTab;
      selectedTab = selectedTabIndex = null;
      tab.$tabSelected = false;
      (tab.onDeselect || noop)();
      tab.$broadcast && tab.$broadcast('$ionicHistory.deselect');
    }
  };

  self.select = function(tab, shouldEmitEvent) {
    var tabIndex;
    if (isNumber(tab)) {
      tabIndex = tab;
      if (tabIndex >= self.tabs.length) return;
      tab = self.tabs[tabIndex];
    } else {
      tabIndex = self.tabs.indexOf(tab);
    }

    if (arguments.length === 1) {
      shouldEmitEvent = !!(tab.navViewName || tab.uiSref);
    }

    if (selectedTab && selectedTab.$historyId == tab.$historyId) {
      if (shouldEmitEvent) {
        $ionicHistory.goToHistoryRoot(tab.$historyId);
      }

    } else if (selectedTabIndex !== tabIndex) {
      forEach(self.tabs, function(tab) {
        self.deselect(tab);
      });

      selectedTab = tab;
      selectedTabIndex = tabIndex;

      if (self.$scope && self.$scope.$parent) {
        self.$scope.$parent.$activeHistoryId = tab.$historyId;
      }

      //Use a funny name like $tabSelected so the developer doesn't overwrite the var in a child scope
      tab.$tabSelected = true;
      (tab.onSelect || noop)();

      if (shouldEmitEvent) {
        $scope.$emit('$ionicHistory.change', {
          type: 'tab',
          tabIndex: tabIndex,
          historyId: tab.$historyId,
          navViewName: tab.navViewName,
          hasNavView: !!tab.navViewName,
          title: tab.title,
          url: tab.href,
          uiSref: tab.uiSref
        });
      }
    }
  };

  self.hasActiveScope = function() {
    for (var x = 0; x < self.tabs.length; x++) {
      if ($ionicHistory.isActiveScope(self.tabs[x])) {
        return true;
      }
    }
    return false;
  };

}]);

IonicModule
.controller('$ionicView', [
  '$scope',
  '$element',
  '$attrs',
  '$compile',
  '$rootScope',
  '$ionicViewSwitcher',
function($scope, $element, $attrs, $compile, $rootScope, $ionicViewSwitcher) {
  var self = this;
  var navElementHtml = {};
  var navViewCtrl;
  var navBarDelegateHandle;
  var hasViewHeaderBar;
  var deregisters = [];
  var viewTitle;

  var deregIonNavBarInit = $scope.$on('ionNavBar.init', function(ev, delegateHandle) {
    // this view has its own ion-nav-bar, remember the navBarDelegateHandle for this view
    ev.stopPropagation();
    navBarDelegateHandle = delegateHandle;
  });


  self.init = function() {
    deregIonNavBarInit();

    var modalCtrl = $element.inheritedData('$ionModalController');
    navViewCtrl = $element.inheritedData('$ionNavViewController');

    // don't bother if inside a modal or there's no parent navView
    if (!navViewCtrl || modalCtrl) return;

    // add listeners for when this view changes
    $scope.$on('$ionicView.beforeEnter', self.beforeEnter);
    $scope.$on('$ionicView.afterEnter', afterEnter);
    $scope.$on('$ionicView.beforeLeave', deregisterFns);
  };

  self.beforeEnter = function(ev, transData) {
    // this event was emitted, starting at intial ion-view, then bubbles up
    // only the first ion-view should do something with it, parent ion-views should ignore
    if (transData && !transData.viewNotified) {
      transData.viewNotified = true;

      if (!$rootScope.$$phase) $scope.$digest();
      viewTitle = isDefined($attrs.viewTitle) ? $attrs.viewTitle : $attrs.title;

      var navBarItems = {};
      for (var n in navElementHtml) {
        navBarItems[n] = generateNavBarItem(navElementHtml[n]);
      }

      navViewCtrl.beforeEnter(extend(transData, {
        title: viewTitle,
        showBack: !attrTrue('hideBackButton'),
        navBarItems: navBarItems,
        navBarDelegate: navBarDelegateHandle || null,
        showNavBar: !attrTrue('hideNavBar'),
        hasHeaderBar: !!hasViewHeaderBar
      }));

      // make sure any existing observers are cleaned up
      deregisterFns();
    }
  };


  function afterEnter() {
    // only listen for title updates after it has entered
    // but also deregister the observe before it leaves
    var viewTitleAttr = isDefined($attrs.viewTitle) && 'viewTitle' || isDefined($attrs.title) && 'title';
    if (viewTitleAttr) {
      titleUpdate($attrs[viewTitleAttr]);
      deregisters.push($attrs.$observe(viewTitleAttr, titleUpdate));
    }

    if (isDefined($attrs.hideBackButton)) {
      deregisters.push($scope.$watch($attrs.hideBackButton, function(val) {
        navViewCtrl.showBackButton(!val);
      }));
    }

    if (isDefined($attrs.hideNavBar)) {
      deregisters.push($scope.$watch($attrs.hideNavBar, function(val) {
        navViewCtrl.showBar(!val);
      }));
    }
  }


  function titleUpdate(newTitle) {
    if (isDefined(newTitle) && newTitle !== viewTitle) {
      viewTitle = newTitle;
      navViewCtrl.title(viewTitle);
    }
  }


  function deregisterFns() {
    // remove all existing $attrs.$observe's
    for (var x = 0; x < deregisters.length; x++) {
      deregisters[x]();
    }
    deregisters = [];
  }


  function generateNavBarItem(html) {
    if (html) {
      // every time a view enters we need to recreate its view buttons if they exist
      return $compile(html)($scope.$new());
    }
  }


  function attrTrue(key) {
    return !!$scope.$eval($attrs[key]);
  }


  self.navElement = function(type, html) {
    navElementHtml[type] = html;
  };

}]);

/*
 * We don't document the ionActionSheet directive, we instead document
 * the $ionicActionSheet service
 */
IonicModule
.directive('ionActionSheet', ['$document', function($document) {
  return {
    restrict: 'E',
    scope: true,
    replace: true,
    link: function($scope, $element) {

      var keyUp = function(e) {
        if (e.which == 27) {
          $scope.cancel();
          $scope.$apply();
        }
      };

      var backdropClick = function(e) {
        if (e.target == $element[0]) {
          $scope.cancel();
          $scope.$apply();
        }
      };
      $scope.$on('$destroy', function() {
        $element.remove();
        $document.unbind('keyup', keyUp);
      });

      $document.bind('keyup', keyUp);
      $element.bind('click', backdropClick);
    },
    template: '<div class="action-sheet-backdrop">' +
                '<div class="action-sheet-wrapper">' +
                  '<div class="action-sheet" ng-class="{\'action-sheet-has-icons\': $actionSheetHasIcon}">' +
                    '<div class="action-sheet-group action-sheet-options">' +
                      '<div class="action-sheet-title" ng-if="titleText" ng-bind-html="titleText"></div>' +
                      '<button class="button action-sheet-option" ng-click="buttonClicked($index)" ng-repeat="b in buttons" ng-bind-html="b.text"></button>' +
                      '<button class="button destructive action-sheet-destructive" ng-if="destructiveText" ng-click="destructiveButtonClicked()" ng-bind-html="destructiveText"></button>' +
                    '</div>' +
                    '<div class="action-sheet-group action-sheet-cancel" ng-if="cancelText">' +
                      '<button class="button" ng-click="cancel()" ng-bind-html="cancelText"></button>' +
                    '</div>' +
                  '</div>' +
                '</div>' +
              '</div>'
  };
}]);


/**
 * @ngdoc directive
 * @name ionCheckbox
 * @module ionic
 * @restrict E
 * @codepen hqcju
 * @description
 * The checkbox is no different than the HTML checkbox input, except it's styled differently.
 *
 * The checkbox behaves like any [AngularJS checkbox](http://docs.angularjs.org/api/ng/input/input[checkbox]).
 *
 * @usage
 * ```html
 * <ion-checkbox ng-model="isChecked">Checkbox Label</ion-checkbox>
 * ```
 */

IonicModule
.directive('ionCheckbox', ['$ionicConfig', function($ionicConfig) {
  return {
    restrict: 'E',
    replace: true,
    require: '?ngModel',
    transclude: true,
    template:
      '<label class="item item-checkbox">' +
        '<div class="checkbox checkbox-input-hidden disable-pointer-events">' +
          '<input type="checkbox">' +
          '<i class="checkbox-icon"></i>' +
        '</div>' +
        '<div class="item-content disable-pointer-events" ng-transclude></div>' +
      '</label>',
    compile: function(element, attr) {
      var input = element.find('input');
      forEach({
        'name': attr.name,
        'ng-value': attr.ngValue,
        'ng-model': attr.ngModel,
        'ng-checked': attr.ngChecked,
        'ng-disabled': attr.ngDisabled,
        'ng-true-value': attr.ngTrueValue,
        'ng-false-value': attr.ngFalseValue,
        'ng-change': attr.ngChange
      }, function(value, name) {
        if (isDefined(value)) {
          input.attr(name, value);
        }
      });
      var checkboxWrapper = element[0].querySelector('.checkbox');
      checkboxWrapper.classList.add('checkbox-' + $ionicConfig.form.checkbox());
    }
  };
}]);


/**
 * @ngdoc directive
 * @restrict A
 * @name collectionRepeat
 * @module ionic
 * @codepen 7ec1ec58f2489ab8f359fa1a0fe89c15
 * @description
 * `collection-repeat` allows an app to show huge lists of items much more performantly than
 * `ng-repeat`.
 *
 * It renders into the DOM only as many items as are currently visible.
 *
 * This means that on a phone screen that can fit eight items, only the eight items matching
 * the current scroll position will be rendered.
 *
 * **The Basics**:
 *
 * - The data given to collection-repeat must be an array.
 * - If the `item-height` and `item-width` attributes are not supplied, it will be assumed that
 *   every item in the list has the same dimensions as the first item.
 * - Don't use angular one-time binding (`::`) with collection-repeat. The scope of each item is
 *   assigned new data and re-digested as you scroll. Bindings need to update, and one-time bindings
 *   won't.
 *
 * **Performance Tips**:
 *
 * - The iOS webview has a performance bottleneck when switching out `<img src>` attributes.
 *   To increase performance of images on iOS, cache your images in advance and,
 *   if possible, lower the number of unique images. We're working on [a solution](https://github.com/driftyco/ionic/issues/3194).
 *
 * @usage
 * #### Basic Item List ([codepen](http://codepen.io/ionic/pen/0c2c35a34a8b18ad4d793fef0b081693))
 * ```html
 * <ion-content>
 *   <ion-item collection-repeat="item in items">
 *     {% raw %}{{item}}{% endraw %}
 *   </ion-item>
 * </ion-content>
 * ```
 *
 * #### Grid of Images ([codepen](http://codepen.io/ionic/pen/5515d4efd9d66f780e96787387f41664))
 * ```html
 * <ion-content>
 *   <img collection-repeat="photo in photos"
 *     item-width="33%"
 *     item-height="200px"
 *     ng-src="{% raw %}{{photo.url}}{% endraw %}">
 * </ion-content>
 * ```
 *
 * #### Horizontal Scroller, Dynamic Item Width ([codepen](http://codepen.io/ionic/pen/67cc56b349124a349acb57a0740e030e))
 * ```html
 * <ion-content>
 *   <h2>Available Kittens:</h2>
 *   <ion-scroll direction="x" class="available-scroller">
 *     <div class="photo" collection-repeat="photo in main.photos"
 *        item-height="250" item-width="photo.width + 30">
 *        <img ng-src="{{photo.src}}">
 *     </div>
 *   </ion-scroll>
 * </ion-content>
 * ```
 *
 * @param {expression} collection-repeat The expression indicating how to enumerate a collection,
 *   of the format  `variable in expression` – where variable is the user defined loop variable
 *   and `expression` is a scope expression giving the collection to enumerate.
 *   For example: `album in artist.albums` or `album in artist.albums | orderBy:'name'`.
 * @param {expression=} item-width The width of the repeated element. The expression must return
 *   a number (pixels) or a percentage. Defaults to the width of the first item in the list.
 *   (previously named collection-item-width)
 * @param {expression=} item-height The height of the repeated element. The expression must return
 *   a number (pixels) or a percentage. Defaults to the height of the first item in the list.
 *   (previously named collection-item-height)
 * @param {number=} item-render-buffer The number of items to load before and after the visible
 *   items in the list. Default 3. Tip: set this higher if you have lots of images to preload, but
 *   don't set it too high or you'll see performance loss.
 * @param {boolean=} force-refresh-images Force images to refresh as you scroll. This fixes a problem
 *   where, when an element is interchanged as scrolling, its image will still have the old src
 *   while the new src loads. Setting this to true comes with a small performance loss.
 */

IonicModule
.directive('collectionRepeat', CollectionRepeatDirective)
.factory('$ionicCollectionManager', RepeatManagerFactory);

var ONE_PX_TRANSPARENT_IMG_SRC = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
var WIDTH_HEIGHT_REGEX = /height:.*?px;\s*width:.*?px/;
var DEFAULT_RENDER_BUFFER = 3;

CollectionRepeatDirective.$inject = ['$ionicCollectionManager', '$parse', '$window', '$$rAF', '$rootScope', '$timeout'];
function CollectionRepeatDirective($ionicCollectionManager, $parse, $window, $$rAF, $rootScope, $timeout) {
  return {
    restrict: 'A',
    priority: 1000,
    transclude: 'element',
    $$tlb: true,
    require: '^^$ionicScroll',
    link: postLink
  };

  function postLink(scope, element, attr, scrollCtrl, transclude) {
    var scrollView = scrollCtrl.scrollView;
    var node = element[0];
    var containerNode = angular.element('<div class="collection-repeat-container">')[0];
    node.parentNode.replaceChild(containerNode, node);

    if (scrollView.options.scrollingX && scrollView.options.scrollingY) {
      throw new Error("collection-repeat expected a parent x or y scrollView, not " +
                      "an xy scrollView.");
    }

    var repeatExpr = attr.collectionRepeat;
    var match = repeatExpr.match(/^\s*([\s\S]+?)\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?\s*$/);
    if (!match) {
      throw new Error("collection-repeat expected expression in form of '_item_ in " +
                      "_collection_[ track by _id_]' but got '" + attr.collectionRepeat + "'.");
    }
    var keyExpr = match[1];
    var listExpr = match[2];
    var listGetter = $parse(listExpr);
    var heightData = {};
    var widthData = {};
    var computedStyleDimensions = {};
    var data = [];
    var repeatManager;

    // attr.collectionBufferSize is deprecated
    var renderBufferExpr = attr.itemRenderBuffer || attr.collectionBufferSize;
    var renderBuffer = angular.isDefined(renderBufferExpr) ?
      parseInt(renderBufferExpr) :
      DEFAULT_RENDER_BUFFER;

    // attr.collectionItemHeight is deprecated
    var heightExpr = attr.itemHeight || attr.collectionItemHeight;
    // attr.collectionItemWidth is deprecated
    var widthExpr = attr.itemWidth || attr.collectionItemWidth;

    var afterItemsContainer = initAfterItemsContainer();

    var changeValidator = makeChangeValidator();
    initDimensions();

    // Dimensions are refreshed on resize or data change.
    scrollCtrl.$element.on('scroll.resize', refreshDimensions);

    angular.element($window).on('resize', onResize);
    var unlistenToExposeAside = $rootScope.$on('$ionicExposeAside', onResize);
    $timeout(refreshDimensions, 0, false);

    function onResize() {
      if (changeValidator.resizeRequiresRefresh(scrollView.__clientWidth, scrollView.__clientHeight)) {
        refreshDimensions();
      }
    }

    scope.$watchCollection(listGetter, function(newValue) {
      data = newValue || (newValue = []);
      if (!angular.isArray(newValue)) {
        throw new Error("collection-repeat expected an array for '" + listExpr + "', " +
          "but got a " + typeof value);
      }
      // Wait for this digest to end before refreshing everything.
      scope.$$postDigest(function() {
        getRepeatManager().setData(data);
        if (changeValidator.dataChangeRequiresRefresh(data)) refreshDimensions();
      });
    });

    scope.$on('$destroy', function() {
      angular.element($window).off('resize', onResize);
      unlistenToExposeAside();
      scrollCtrl.$element && scrollCtrl.$element.off('scroll.resize', refreshDimensions);

      computedStyleNode && computedStyleNode.parentNode &&
        computedStyleNode.parentNode.removeChild(computedStyleNode);
      computedStyleScope && computedStyleScope.$destroy();
      computedStyleScope = computedStyleNode = null;

      repeatManager && repeatManager.destroy();
      repeatManager = null;
    });

    function makeChangeValidator() {
      var self;
      return (self = {
        dataLength: 0,
        width: 0,
        height: 0,
        // A resize triggers a refresh only if we have data, the scrollView has size,
        // and the size has changed.
        resizeRequiresRefresh: function(newWidth, newHeight) {
          var requiresRefresh = self.dataLength && newWidth && newHeight &&
            (newWidth !== self.width || newHeight !== self.height);

          self.width = newWidth;
          self.height = newHeight;

          return !!requiresRefresh;
        },
        // A change in data only triggers a refresh if the data has length, or if the data's
        // length is less than before.
        dataChangeRequiresRefresh: function(newData) {
          var requiresRefresh = newData.length > 0 || newData.length < self.dataLength;

          self.dataLength = newData.length;

          return !!requiresRefresh;
        }
      });
    }

    function getRepeatManager() {
      return repeatManager || (repeatManager = new $ionicCollectionManager({
        afterItemsNode: afterItemsContainer[0],
        containerNode: containerNode,
        heightData: heightData,
        widthData: widthData,
        forceRefreshImages: !!(isDefined(attr.forceRefreshImages) && attr.forceRefreshImages !== 'false'),
        keyExpression: keyExpr,
        renderBuffer: renderBuffer,
        scope: scope,
        scrollView: scrollCtrl.scrollView,
        transclude: transclude,
      }));
    }

    function initAfterItemsContainer() {
      var container = angular.element(
        scrollView.__content.querySelector('.collection-repeat-after-container')
      );
      // Put everything in the view after the repeater into a container.
      if (!container.length) {
        var elementIsAfterRepeater = false;
        var afterNodes = [].filter.call(scrollView.__content.childNodes, function(node) {
          if (ionic.DomUtil.contains(node, containerNode)) {
            elementIsAfterRepeater = true;
            return false;
          }
          return elementIsAfterRepeater;
        });
        container = angular.element('<span class="collection-repeat-after-container">');
        if (scrollView.options.scrollingX) {
          container.addClass('horizontal');
        }
        container.append(afterNodes);
        scrollView.__content.appendChild(container[0]);
      }
      return container;
    }

    function initDimensions() {
      //Height and width have four 'modes':
      //1) Computed Mode
      //  - Nothing is supplied, so we getComputedStyle() on one element in the list and use
      //    that width and height value for the width and height of every item. This is re-computed
      //    every resize.
      //2) Constant Mode, Static Integer
      //  - The user provides a constant number for width or height, in pixels. We parse it,
      //    store it on the `value` field, and it never changes
      //3) Constant Mode, Percent
      //  - The user provides a percent string for width or height. The getter for percent is
      //    stored on the `getValue()` field, and is re-evaluated once every resize. The result
      //    is stored on the `value` field.
      //4) Dynamic Mode
      //  - The user provides a dynamic expression for the width or height.  This is re-evaluated
      //    for every item, stored on the `.getValue()` field.
      if (!heightExpr && !widthExpr) {
        heightData.computed = widthData.computed = true;
      } else {
        if (heightExpr) {
          parseDimensionAttr(heightExpr, heightData);
        } else {
          heightData.computed = true;
        }
        if (!widthExpr) widthExpr = '"100%"';
        parseDimensionAttr(widthExpr, widthData);
      }
    }

    function refreshDimensions() {
      var hasData = data.length > 0;

      if (hasData && (heightData.computed || widthData.computed)) {
        computeStyleDimensions();
      }

      if (hasData && heightData.computed) {
        heightData.value = computedStyleDimensions.height;
        if (!heightData.value) {
          throw new Error('collection-repeat tried to compute the height of repeated elements "' +
            repeatExpr + '", but was unable to. Please provide the "item-height" attribute. ' +
            'http://ionicframework.com/docs/api/directive/collectionRepeat/');
        }
      } else if (!heightData.dynamic && heightData.getValue) {
        // If it's a constant with a getter (eg percent), we just refresh .value after resize
        heightData.value = heightData.getValue();
      }

      if (hasData && widthData.computed) {
        widthData.value = computedStyleDimensions.width;
        if (!widthData.value) {
          throw new Error('collection-repeat tried to compute the width of repeated elements "' +
            repeatExpr + '", but was unable to. Please provide the "item-width" attribute. ' +
            'http://ionicframework.com/docs/api/directive/collectionRepeat/');
        }
      } else if (!widthData.dynamic && widthData.getValue) {
        // If it's a constant with a getter (eg percent), we just refresh .value after resize
        widthData.value = widthData.getValue();
      }
      // Dynamic dimensions aren't updated on resize. Since they're already dynamic anyway,
      // .getValue() will be used.

      getRepeatManager().refreshLayout();
    }

    function parseDimensionAttr(attrValue, dimensionData) {
      if (!attrValue) return;

      var parsedValue;
      // Try to just parse the plain attr value
      try {
        parsedValue = $parse(attrValue);
      } catch(e) {
        // If the parse fails and the value has `px` or `%` in it, surround the attr in
        // quotes, to attempt to let the user provide a simple `attr="100%"` or `attr="100px"`
        if (attrValue.trim().match(/\d+(px|%)$/)) {
          attrValue = '"' + attrValue + '"';
        }
        parsedValue = $parse(attrValue);
      }

      var constantAttrValue = attrValue.replace(/(\'|\"|px|%)/g, '').trim();
      var isConstant = constantAttrValue.length && !/([a-zA-Z]|\$|:|\?)/.test(constantAttrValue);
      dimensionData.attrValue = attrValue;

      // If it's a constant, it's either a percent or just a constant pixel number.
      if (isConstant) {
        var intValue = parseInt(parsedValue());

        // For percents, store the percent getter on .getValue()
        if (attrValue.indexOf('%') > -1) {
          var decimalValue = intValue / 100;
          dimensionData.getValue = dimensionData === heightData ?
            function() { return Math.floor(decimalValue * scrollView.__clientHeight); } :
            function() { return Math.floor(decimalValue * scrollView.__clientWidth); };
        } else {
          // For static constants, just store the static constant.
          dimensionData.value = intValue;
        }

      } else {
        dimensionData.dynamic = true;
        dimensionData.getValue = dimensionData === heightData ?
          function heightGetter(scope, locals) {
            var result = parsedValue(scope, locals);
            if (result.charAt && result.charAt(result.length - 1) === '%')
              return Math.floor(parseInt(result) / 100 * scrollView.__clientHeight);
            return parseInt(result);
          } :
          function widthGetter(scope, locals) {
            var result = parsedValue(scope, locals);
            if (result.charAt && result.charAt(result.length - 1) === '%')
              return Math.floor(parseInt(result) / 100 * scrollView.__clientWidth);
            return parseInt(result);
          };
      }
    }

    var computedStyleNode;
    var computedStyleScope;
    function computeStyleDimensions() {
      if (!computedStyleNode) {
        transclude(computedStyleScope = scope.$new(), function(clone) {
          clone[0].removeAttribute('collection-repeat'); // remove absolute position styling
          computedStyleNode = clone[0];
        });
      }

      computedStyleScope[keyExpr] = (listGetter(scope) || [])[0];
      if (!$rootScope.$$phase) computedStyleScope.$digest();
      containerNode.appendChild(computedStyleNode);

      var style = $window.getComputedStyle(computedStyleNode);
      computedStyleDimensions.width = parseInt(style.width);
      computedStyleDimensions.height = parseInt(style.height);

      containerNode.removeChild(computedStyleNode);
    }

  }

}

RepeatManagerFactory.$inject = ['$rootScope', '$window', '$$rAF'];
function RepeatManagerFactory($rootScope, $window, $$rAF) {
  var EMPTY_DIMENSION = { primaryPos: 0, secondaryPos: 0, primarySize: 0, secondarySize: 0 };

  return function RepeatController(options) {
    var afterItemsNode = options.afterItemsNode;
    var containerNode = options.containerNode;
    var forceRefreshImages = options.forceRefreshImages;
    var heightData = options.heightData;
    var widthData = options.widthData;
    var keyExpression = options.keyExpression;
    var renderBuffer = options.renderBuffer;
    var scope = options.scope;
    var scrollView = options.scrollView;
    var transclude = options.transclude;

    var data = [];

    var getterLocals = {};
    var heightFn = heightData.getValue || function() { return heightData.value; };
    var heightGetter = function(index, value) {
      getterLocals[keyExpression] = value;
      getterLocals.$index = index;
      return heightFn(scope, getterLocals);
    };

    var widthFn = widthData.getValue || function() { return widthData.value; };
    var widthGetter = function(index, value) {
      getterLocals[keyExpression] = value;
      getterLocals.$index = index;
      return widthFn(scope, getterLocals);
    };

    var isVertical = !!scrollView.options.scrollingY;

    // We say it's a grid view if we're either dynamic or not 100% width
    var isGridView = isVertical ?
      (widthData.dynamic || widthData.value !== scrollView.__clientWidth) :
      (heightData.dynamic || heightData.value !== scrollView.__clientHeight);

    var isStaticView = !heightData.dynamic && !widthData.dynamic;

    var PRIMARY = 'PRIMARY';
    var SECONDARY = 'SECONDARY';
    var TRANSLATE_TEMPLATE_STR = isVertical ?
      'translate3d(SECONDARYpx,PRIMARYpx,0)' :
      'translate3d(PRIMARYpx,SECONDARYpx,0)';
    var WIDTH_HEIGHT_TEMPLATE_STR = isVertical ?
      'height: PRIMARYpx; width: SECONDARYpx;' :
      'height: SECONDARYpx; width: PRIMARYpx;';

    var estimatedHeight;
    var estimatedWidth;

    var repeaterBeforeSize = 0;
    var repeaterAfterSize = 0;

    var renderStartIndex = -1;
    var renderEndIndex = -1;
    var renderAfterBoundary = -1;
    var renderBeforeBoundary = -1;

    var itemsPool = [];
    var itemsLeaving = [];
    var itemsEntering = [];
    var itemsShownMap = {};
    var nextItemId = 0;
    var estimatedItemsAcross;

    var scrollViewSetDimensions = isVertical ?
      function() { scrollView.setDimensions(null, null, null, view.getContentSize(), true); } :
      function() { scrollView.setDimensions(null, null, view.getContentSize(), null, true); };

    // view is a mix of list/grid methods + static/dynamic methods.
    // See bottom for implementations. Available methods:
    //
    // getEstimatedPrimaryPos(i), getEstimatedSecondaryPos(i), getEstimatedIndex(scrollTop),
    // calculateDimensions(toIndex), getDimensions(index),
    // updateRenderRange(scrollTop, scrollValueEnd), onRefreshLayout(), onRefreshData()
    var view = isVertical ? new VerticalViewType() : new HorizontalViewType();
    (isGridView ? GridViewType : ListViewType).call(view);
    (isStaticView ? StaticViewType : DynamicViewType).call(view);

    var contentSizeStr = isVertical ? 'getContentHeight' : 'getContentWidth';
    var originalGetContentSize = scrollView.options[contentSizeStr];
    scrollView.options[contentSizeStr] = angular.bind(view, view.getContentSize);

    scrollView.__$callback = scrollView.__callback;
    scrollView.__callback = function(transformLeft, transformTop, zoom, wasResize) {
      var scrollValue = view.getScrollValue();
      if (renderStartIndex === -1 ||
          scrollValue + view.scrollPrimarySize > renderAfterBoundary ||
          scrollValue < renderBeforeBoundary) {
        render();
      }
      scrollView.__$callback(transformLeft, transformTop, zoom, wasResize);
    };

    var isLayoutReady = false;
    var isDataReady = false;
    this.refreshLayout = function(itemsAfterRepeater) {
      estimatedHeight = heightGetter(0, data[0]);
      estimatedWidth = widthGetter(0, data[0]);

      // Get the size of every element AFTER the repeater. We have to get the margin before and
      // after the first/last element to fix a browser bug with getComputedStyle() not counting
      // the first/last child's margins into height.
      var style = getComputedStyle(afterItemsNode) || {};
      var firstStyle = afterItemsNode.firstElementChild && getComputedStyle(afterItemsNode.firstElementChild) || {};
      var lastStyle = afterItemsNode.lastElementChild && getComputedStyle(afterItemsNode.lastElementChild) || {};
      repeaterAfterSize = (parseInt(style[isVertical ? 'height' : 'width']) || 0) +
        (firstStyle && parseInt(firstStyle[isVertical ? 'marginTop' : 'marginLeft']) || 0) +
        (lastStyle && parseInt(lastStyle[isVertical ? 'marginBottom' : 'marginRight']) || 0);

      // Get the offsetTop of the repeater.
      repeaterBeforeSize = 0;
      var current = containerNode;
      do {
        repeaterBeforeSize += current[isVertical ? 'offsetTop' : 'offsetLeft'];
      } while( ionic.DomUtil.contains(scrollView.__content, current = current.offsetParent) );

      var containerPrevNode = containerNode.previousElementSibling;
      var beforeStyle = containerPrevNode ?  $window.getComputedStyle(containerPrevNode) : {};
      var beforeMargin = parseInt(beforeStyle[isVertical ? 'marginBottom' : 'marginRight'] || 0);

      // Because we position the collection container with position: relative, it doesn't take
      // into account where to position itself relative to the previous element's marginBottom.
      // To compensate, we translate the container up by the previous element's margin.
      containerNode.style[ionic.CSS.TRANSFORM] = TRANSLATE_TEMPLATE_STR
        .replace(PRIMARY, -beforeMargin)
        .replace(SECONDARY, 0);
      repeaterBeforeSize -= beforeMargin;

      if (!scrollView.__clientHeight || !scrollView.__clientWidth) {
        scrollView.__clientWidth = scrollView.__container.clientWidth;
        scrollView.__clientHeight = scrollView.__container.clientHeight;
      }

      (view.onRefreshLayout || angular.noop)();
      view.refreshDirection();
      scrollViewSetDimensions();

      // Create the pool of items for reuse, setting the size to (estimatedItemsOnScreen) * 2,
      // plus the size of the renderBuffer.
      if (!isLayoutReady) {
        var poolSize = Math.max(20, renderBuffer * 3);
        for (var i = 0; i < poolSize; i++) {
          itemsPool.push(new RepeatItem());
        }
      }

      isLayoutReady = true;
      if (isLayoutReady && isDataReady) {
        // If the resize or latest data change caused the scrollValue to
        // now be out of bounds, resize the scrollView.
        if (scrollView.__scrollLeft > scrollView.__maxScrollLeft ||
            scrollView.__scrollTop > scrollView.__maxScrollTop) {
          scrollView.resize();
        }
        forceRerender(true);
      }
    };

    this.setData = function(newData) {
      data = newData;
      (view.onRefreshData || angular.noop)();
      isDataReady = true;
    };

    this.destroy = function() {
      render.destroyed = true;

      itemsPool.forEach(function(item) {
        item.scope.$destroy();
        item.scope = item.element = item.node = item.images = null;
      });
      itemsPool.length = itemsEntering.length = itemsLeaving.length = 0;
      itemsShownMap = {};

      //Restore the scrollView's normal behavior and resize it to normal size.
      scrollView.options[contentSizeStr] = originalGetContentSize;
      scrollView.__callback = scrollView.__$callback;
      scrollView.resize();

      (view.onDestroy || angular.noop)();
    };

    function forceRerender() {
      return render(true);
    }
    function render(forceRerender) {
      if (render.destroyed) return;
      var i;
      var item;
      var dim;
      var scope;
      var scrollValue = view.getScrollValue();
      var scrollValueEnd = scrollValue + view.scrollPrimarySize;

      view.updateRenderRange(scrollValue, scrollValueEnd);

      renderStartIndex = Math.max(0, renderStartIndex - renderBuffer);
      renderEndIndex = Math.min(data.length - 1, renderEndIndex + renderBuffer);

      for (i in itemsShownMap) {
        if (i < renderStartIndex || i > renderEndIndex) {
          item = itemsShownMap[i];
          delete itemsShownMap[i];
          itemsLeaving.push(item);
          item.isShown = false;
        }
      }

      // Render indicies that aren't shown yet
      //
      // NOTE(ajoslin): this may sound crazy, but calling any other functions during this render
      // loop will often push the render time over the edge from less than one frame to over
      // one frame, causing visible jank.
      // DON'T call any other functions inside this loop unless it's vital.
      for (i = renderStartIndex; i <= renderEndIndex; i++) {
        // We only go forward with render if the index is in data, the item isn't already shown,
        // or forceRerender is on.
        if (i >= data.length || (itemsShownMap[i] && !forceRerender)) continue;

        item = itemsShownMap[i] || (itemsShownMap[i] = itemsLeaving.length ? itemsLeaving.pop() :
                                    itemsPool.length ? itemsPool.shift() :
                                    new RepeatItem());
        itemsEntering.push(item);
        item.isShown = true;

        scope = item.scope;
        scope.$index = i;
        scope[keyExpression] = data[i];
        scope.$first = (i === 0);
        scope.$last = (i === (data.length - 1));
        scope.$middle = !(scope.$first || scope.$last);
        scope.$odd = !(scope.$even = (i&1) === 0);

        if (scope.$$disconnected) ionic.Utils.reconnectScope(item.scope);

        dim = view.getDimensions(i);
        if (item.secondaryPos !== dim.secondaryPos || item.primaryPos !== dim.primaryPos) {
          item.node.style[ionic.CSS.TRANSFORM] = TRANSLATE_TEMPLATE_STR
            .replace(PRIMARY, (item.primaryPos = dim.primaryPos))
            .replace(SECONDARY, (item.secondaryPos = dim.secondaryPos));
        }
        if (item.secondarySize !== dim.secondarySize || item.primarySize !== dim.primarySize) {
          item.node.style.cssText = item.node.style.cssText
            .replace(WIDTH_HEIGHT_REGEX, WIDTH_HEIGHT_TEMPLATE_STR
              .replace(PRIMARY, (item.primarySize = dim.primarySize) + 1)
              .replace(SECONDARY, (item.secondarySize = dim.secondarySize))
            );
        }

      }

      // If we reach the end of the list, render the afterItemsNode - this contains all the
      // elements the developer placed after the collection-repeat
      if (renderEndIndex === data.length - 1) {
        dim = view.getDimensions(data.length - 1) || EMPTY_DIMENSION;
        afterItemsNode.style[ionic.CSS.TRANSFORM] = TRANSLATE_TEMPLATE_STR
          .replace(PRIMARY, dim.primaryPos + dim.primarySize)
          .replace(SECONDARY, 0);
      }

      while (itemsLeaving.length) {
        item = itemsLeaving.pop();
        item.scope.$broadcast('$collectionRepeatLeave');
        ionic.Utils.disconnectScope(item.scope);
        itemsPool.push(item);
        item.node.style[ionic.CSS.TRANSFORM] = 'translate3d(-9999px,-9999px,0)';
        item.primaryPos = item.secondaryPos = null;
      }

      if (forceRefreshImages) {
        for (i = 0, ii = itemsEntering.length; i < ii && (item = itemsEntering[i]); i++) {
          if (!item.images) continue;
          for (var j = 0, jj = item.images.length, img; j < jj && (img = item.images[j]); j++) {
            var src = img.src;
            img.src = ONE_PX_TRANSPARENT_IMG_SRC;
            img.src = src;
          }
        }
      }
      if (forceRerender) {
        var rootScopePhase = $rootScope.$$phase;
        while (itemsEntering.length) {
          item = itemsEntering.pop();
          if (!rootScopePhase) item.scope.$digest();
        }
      } else {
        digestEnteringItems();
      }
    }

    function getNextItem() {
      if (itemsLeaving.length)
        return itemsLeaving.pop();
      else if (itemsPool.length)
        return itemsPool.shift();
      return new RepeatItem();
    }

    function digestEnteringItems() {
      var item;
      if (digestEnteringItems.running) return;
      digestEnteringItems.running = true;

      $$rAF(function process() {
        var rootScopePhase = $rootScope.$$phase;
        while (itemsEntering.length) {
          item = itemsEntering.pop();
          if (item.isShown) {
            if (!rootScopePhase) item.scope.$digest();
          }
        }
        digestEnteringItems.running = false;
      });
    }

    function RepeatItem() {
      var self = this;
      this.scope = scope.$new();
      this.id = 'item'+ (nextItemId++);
      transclude(this.scope, function(clone) {
        self.element = clone;
        self.element.data('$$collectionRepeatItem', self);
        // TODO destroy
        self.node = clone[0];
        // Batch style setting to lower repaints
        self.node.style[ionic.CSS.TRANSFORM] = 'translate3d(-9999px,-9999px,0)';
        self.node.style.cssText += ' height: 0px; width: 0px;';
        ionic.Utils.disconnectScope(self.scope);
        containerNode.appendChild(self.node);
        self.images = clone[0].getElementsByTagName('img');
      });
    }

    function VerticalViewType() {
      this.getItemPrimarySize = heightGetter;
      this.getItemSecondarySize = widthGetter;

      this.getScrollValue = function() {
        return Math.max(0, Math.min(scrollView.__scrollTop - repeaterBeforeSize,
          scrollView.__maxScrollTop - repeaterBeforeSize - repeaterAfterSize));
      };

      this.refreshDirection = function() {
        this.scrollPrimarySize = scrollView.__clientHeight;
        this.scrollSecondarySize = scrollView.__clientWidth;

        this.estimatedPrimarySize = estimatedHeight;
        this.estimatedSecondarySize = estimatedWidth;
        this.estimatedItemsAcross = isGridView &&
          Math.floor(scrollView.__clientWidth / estimatedWidth) ||
          1;
      };
    }
    function HorizontalViewType() {
      this.getItemPrimarySize = widthGetter;
      this.getItemSecondarySize = heightGetter;

      this.getScrollValue = function() {
        return Math.max(0, Math.min(scrollView.__scrollLeft - repeaterBeforeSize,
          scrollView.__maxScrollLeft - repeaterBeforeSize - repeaterAfterSize));
      };

      this.refreshDirection = function() {
        this.scrollPrimarySize = scrollView.__clientWidth;
        this.scrollSecondarySize = scrollView.__clientHeight;

        this.estimatedPrimarySize = estimatedWidth;
        this.estimatedSecondarySize = estimatedHeight;
        this.estimatedItemsAcross = isGridView &&
          Math.floor(scrollView.__clientHeight / estimatedHeight) ||
          1;
      };
    }

    function GridViewType() {
      this.getEstimatedSecondaryPos = function(index) {
        return (index % this.estimatedItemsAcross) * this.estimatedSecondarySize;
      };
      this.getEstimatedPrimaryPos = function(index) {
        return Math.floor(index / this.estimatedItemsAcross) * this.estimatedPrimarySize;
      };
      this.getEstimatedIndex = function(scrollValue) {
        return Math.floor(scrollValue / this.estimatedPrimarySize) *
          this.estimatedItemsAcross;
      };
    }

    function ListViewType() {
      this.getEstimatedSecondaryPos = function() {
        return 0;
      };
      this.getEstimatedPrimaryPos = function(index) {
        return index * this.estimatedPrimarySize;
      };
      this.getEstimatedIndex = function(scrollValue) {
        return Math.floor((scrollValue) / this.estimatedPrimarySize);
      };
    }

    function StaticViewType() {
      this.getContentSize = function() {
        return this.getEstimatedPrimaryPos(data.length - 1) + this.estimatedPrimarySize +
          repeaterBeforeSize + repeaterAfterSize;
      };
      // static view always returns the same object for getDimensions, to avoid memory allocation
      // while scrolling. This could be dangerous if this was a public function, but it's not.
      // Only we use it.
      var dim = {};
      this.getDimensions = function(index) {
        dim.primaryPos = this.getEstimatedPrimaryPos(index);
        dim.secondaryPos = this.getEstimatedSecondaryPos(index);
        dim.primarySize = this.estimatedPrimarySize;
        dim.secondarySize = this.estimatedSecondarySize;
        return dim;
      };
      this.updateRenderRange = function(scrollValue, scrollValueEnd) {
        renderStartIndex = Math.max(0, this.getEstimatedIndex(scrollValue));

        // Make sure the renderEndIndex takes into account all the items on the row
        renderEndIndex = Math.min(data.length - 1,
          this.getEstimatedIndex(scrollValueEnd) + this.estimatedItemsAcross - 1);

        renderBeforeBoundary = Math.max(0,
          this.getEstimatedPrimaryPos(renderStartIndex));
        renderAfterBoundary = this.getEstimatedPrimaryPos(renderEndIndex) +
          this.estimatedPrimarySize;
      };
    }

    function DynamicViewType() {
      var self = this;
      var debouncedScrollViewSetDimensions = ionic.debounce(scrollViewSetDimensions, 25, true);
      var calculateDimensions = isGridView ? calculateDimensionsGrid : calculateDimensionsList;
      var dimensionsIndex;
      var dimensions = [];


      // Get the dimensions at index. {width, height, left, top}.
      // We start with no dimensions calculated, then any time dimensions are asked for at an
      // index we calculate dimensions up to there.
      function calculateDimensionsList(toIndex) {
        var i, prevDimension, dim;
        for (i = Math.max(0, dimensionsIndex); i <= toIndex && (dim = dimensions[i]); i++) {
          prevDimension = dimensions[i - 1] || EMPTY_DIMENSION;
          dim.primarySize = self.getItemPrimarySize(i, data[i]);
          dim.secondarySize = self.scrollSecondarySize;
          dim.primaryPos = prevDimension.primaryPos + prevDimension.primarySize;
          dim.secondaryPos = 0;
        }
      }
      function calculateDimensionsGrid(toIndex) {
        var i, prevDimension, dim;
        for (i = Math.max(dimensionsIndex, 0); i <= toIndex && (dim = dimensions[i]); i++) {
          prevDimension = dimensions[i - 1] || EMPTY_DIMENSION;
          dim.secondarySize = Math.min(
            self.getItemSecondarySize(i, data[i]),
            self.scrollSecondarySize
          );
          dim.secondaryPos = prevDimension.secondaryPos + prevDimension.secondarySize;

          if (i === 0 || dim.secondaryPos + dim.secondarySize > self.scrollSecondarySize) {
            dim.rowStartIndex = i;
            dim.secondaryPos = 0;
            dim.primarySize = self.getItemPrimarySize(i, data[i]);
            dim.primaryPos = prevDimension.primaryPos + prevDimension.primarySize;
          } else {
            dim.rowStartIndex = prevDimension.rowStartIndex;
            dim.primarySize = prevDimension.primarySize;
            dim.primaryPos = prevDimension.primaryPos;
          }
        }
      }

      this.getContentSize = function() {
        var dim = dimensions[dimensionsIndex] || EMPTY_DIMENSION;
        return ((dim.primaryPos + dim.primarySize) || 0) +
          this.getEstimatedPrimaryPos(data.length - dimensionsIndex - 1) +
          repeaterBeforeSize + repeaterAfterSize;
      };
      this.onDestroy = function() {
        dimensions.length = 0;
      };

      this.onRefreshData = function() {
        // Make sure dimensions has as many items as data.length.
        // This is to be sure we don't have to allocate objects while scrolling.
        for (i = dimensions.length, len = data.length; i < len; i++) {
          dimensions.push({});
        }
        dimensionsIndex = -1;
      };
      this.onRefreshLayout = function() {
        dimensionsIndex = -1;
      };
      this.getDimensions = function(index) {
        index = Math.min(index, data.length - 1);

        if (dimensionsIndex < index) {
          // Once we start asking for dimensions near the end of the list, go ahead and calculate
          // everything. This is to make sure when the user gets to the end of the list, the
          // scroll height of the list is 100% accurate (not estimated anymore).
          if (index > data.length * 0.9) {
            calculateDimensions(data.length - 1);
            dimensionsIndex = data.length - 1;
            scrollViewSetDimensions();
          } else {
            calculateDimensions(index);
            dimensionsIndex = index;
            debouncedScrollViewSetDimensions();
          }

        }
        return dimensions[index];
      };

      var oldRenderStartIndex = -1;
      var oldScrollValue = -1;
      this.updateRenderRange = function(scrollValue, scrollValueEnd) {
        var i;
        var len;
        var dim;

        // Calculate more dimensions than we estimate we'll need, to be sure.
        this.getDimensions( this.getEstimatedIndex(scrollValueEnd) * 2 );

        // -- Calculate renderStartIndex
        // base case: start at 0
        if (oldRenderStartIndex === -1 || scrollValue === 0) {
          i = 0;
        // scrolling down
        } else if (scrollValue >= oldScrollValue) {
          for (i = oldRenderStartIndex, len = data.length; i < len; i++) {
            if ((dim = this.getDimensions(i)) && dim.primaryPos + dim.primarySize >= scrollValue) {
              break;
            }
          }
        // scrolling up
        } else {
          for (i = oldRenderStartIndex; i >= 0; i--) {
            if ((dim = this.getDimensions(i)) && dim.primaryPos <= scrollValue) {
              // when grid view, make sure the render starts at the beginning of a row.
              i = isGridView ? dim.rowStartIndex : i;
              break;
            }
          }
        }

        renderStartIndex = Math.min(Math.max(0, i), data.length - 1);
        renderBeforeBoundary = renderStartIndex !== -1 ? this.getDimensions(renderStartIndex).primaryPos : -1;

        // -- Calculate renderEndIndex
        var lastRowDim;
        for (i = renderStartIndex + 1, len = data.length; i < len; i++) {
          if ((dim = this.getDimensions(i)) && dim.primaryPos + dim.primarySize > scrollValueEnd) {

            // Go all the way to the end of the row if we're in a grid
            if (isGridView) {
              lastRowDim = dim;
              while (i < len - 1 &&
                    (dim = this.getDimensions(i + 1)).primaryPos === lastRowDim.primaryPos) {
                i++;
              }
            }
            break;
          }
        }

        renderEndIndex = Math.min(i, data.length - 1);
        renderAfterBoundary = renderEndIndex !== -1 ?
          ((dim = this.getDimensions(renderEndIndex)).primaryPos + dim.primarySize) :
          -1;

        oldScrollValue = scrollValue;
        oldRenderStartIndex = renderStartIndex;
      };
    }


  };

}



/**
 * @ngdoc directive
 * @name ionContent
 * @module ionic
 * @delegate ionic.service:$ionicScrollDelegate
 * @restrict E
 *
 * @description
 * The ionContent directive provides an easy to use content area that can be configured
 * to use Ionic's custom Scroll View, or the built in overflow scrolling of the browser.
 *
 * While we recommend using the custom Scroll features in Ionic in most cases, sometimes
 * (for performance reasons) only the browser's native overflow scrolling will suffice,
 * and so we've made it easy to toggle between the Ionic scroll implementation and
 * overflow scrolling.
 *
 * You can implement pull-to-refresh with the {@link ionic.directive:ionRefresher}
 * directive, and infinite scrolling with the {@link ionic.directive:ionInfiniteScroll}
 * directive.
 *
 * Be aware that this directive gets its own child scope. If you do not understand why this
 * is important, you can read [https://docs.angularjs.org/guide/scope](https://docs.angularjs.org/guide/scope).
 *
 * @param {string=} delegate-handle The handle used to identify this scrollView
 * with {@link ionic.service:$ionicScrollDelegate}.
 * @param {string=} direction Which way to scroll. 'x' or 'y' or 'xy'. Default 'y'.
 * @param {boolean=} locking Whether to lock scrolling in one direction at a time. Useful to set to false when zoomed in or scrolling in two directions. Default true.
 * @param {boolean=} padding Whether to add padding to the content.
 * of the content.  Defaults to true on iOS, false on Android.
 * @param {boolean=} scroll Whether to allow scrolling of content.  Defaults to true.
 * @param {boolean=} overflow-scroll Whether to use overflow-scrolling instead of
 * Ionic scroll.
 * @param {boolean=} scrollbar-x Whether to show the horizontal scrollbar. Default true.
 * @param {boolean=} scrollbar-y Whether to show the vertical scrollbar. Default true.
 * @param {string=} start-x Initial horizontal scroll position. Default 0.
 * @param {string=} start-y Initial vertical scroll position. Default 0.
 * @param {expression=} on-scroll Expression to evaluate when the content is scrolled.
 * @param {expression=} on-scroll-complete Expression to evaluate when a scroll action completes.
 * @param {boolean=} has-bouncing Whether to allow scrolling to bounce past the edges
 * of the content.  Defaults to true on iOS, false on Android.
 * @param {number=} scroll-event-interval Number of milliseconds between each firing of the 'on-scroll' expression. Default 10.
 */
IonicModule
.directive('ionContent', [
  '$timeout',
  '$controller',
  '$ionicBind',
  '$ionicConfig',
function($timeout, $controller, $ionicBind, $ionicConfig) {
  return {
    restrict: 'E',
    require: '^?ionNavView',
    scope: true,
    priority: 800,
    compile: function(element, attr) {
      var innerElement;

      element.addClass('scroll-content ionic-scroll');

      if (attr.scroll != 'false') {
        //We cannot use normal transclude here because it breaks element.data()
        //inheritance on compile
        innerElement = jqLite('<div class="scroll"></div>');
        innerElement.append(element.contents());
        element.append(innerElement);
      } else {
        element.addClass('scroll-content-false');
      }

      return { pre: prelink };
      function prelink($scope, $element, $attr, navViewCtrl) {
        var parentScope = $scope.$parent;
        $scope.$watch(function() {
          return (parentScope.$hasHeader ? ' has-header' : '')  +
            (parentScope.$hasSubheader ? ' has-subheader' : '') +
            (parentScope.$hasFooter ? ' has-footer' : '') +
            (parentScope.$hasSubfooter ? ' has-subfooter' : '') +
            (parentScope.$hasTabs ? ' has-tabs' : '') +
            (parentScope.$hasTabsTop ? ' has-tabs-top' : '');
        }, function(className, oldClassName) {
          $element.removeClass(oldClassName);
          $element.addClass(className);
        });

        //Only this ionContent should use these variables from parent scopes
        $scope.$hasHeader = $scope.$hasSubheader =
          $scope.$hasFooter = $scope.$hasSubfooter =
          $scope.$hasTabs = $scope.$hasTabsTop =
          false;
        $ionicBind($scope, $attr, {
          $onScroll: '&onScroll',
          $onScrollComplete: '&onScrollComplete',
          hasBouncing: '@',
          padding: '@',
          direction: '@',
          scrollbarX: '@',
          scrollbarY: '@',
          startX: '@',
          startY: '@',
          scrollEventInterval: '@'
        });
        $scope.direction = $scope.direction || 'y';

        if (isDefined($attr.padding)) {
          $scope.$watch($attr.padding, function(newVal) {
              (innerElement || $element).toggleClass('padding', !!newVal);
          });
        }

        if ($attr.scroll === "false") {
          //do nothing
        } else if (attr.overflowScroll === "true" || !$ionicConfig.scrolling.jsScrolling()) {
          // use native scrolling
          $element.addClass('overflow-scroll');
        } else {
          var scrollViewOptions = {
            el: $element[0],
            delegateHandle: attr.delegateHandle,
            locking: (attr.locking || 'true') === 'true',
            bouncing: $scope.$eval($scope.hasBouncing),
            startX: $scope.$eval($scope.startX) || 0,
            startY: $scope.$eval($scope.startY) || 0,
            scrollbarX: $scope.$eval($scope.scrollbarX) !== false,
            scrollbarY: $scope.$eval($scope.scrollbarY) !== false,
            scrollingX: $scope.direction.indexOf('x') >= 0,
            scrollingY: $scope.direction.indexOf('y') >= 0,
            scrollEventInterval: parseInt($scope.scrollEventInterval, 10) || 10,
            scrollingComplete: function() {
              $scope.$onScrollComplete({
                scrollTop: this.__scrollTop,
                scrollLeft: this.__scrollLeft
              });
            }
          };
          $controller('$ionicScroll', {
            $scope: $scope,
            scrollViewOptions: scrollViewOptions
          });

          $scope.$on('$destroy', function() {
            scrollViewOptions.scrollingComplete = noop;
            delete scrollViewOptions.el;
            innerElement = null;
            $element = null;
            attr.$$element = null;
          });
        }

      }
    }
  };
}]);

/**
 * @ngdoc directive
 * @name exposeAsideWhen
 * @module ionic
 * @restrict A
 * @parent ionic.directive:ionSideMenus
 *
 * @description
 * It is common for a tablet application to hide a menu when in portrait mode, but to show the
 * same menu on the left side when the tablet is in landscape mode. The `exposeAsideWhen` attribute
 * directive can be used to accomplish a similar interface.
 *
 * By default, side menus are hidden underneath its side menu content, and can be opened by either
 * swiping the content left or right, or toggling a button to show the side menu. However, by adding the
 * `exposeAsideWhen` attribute directive to an {@link ionic.directive:ionSideMenu} element directive,
 * a side menu can be given instructions on "when" the menu should be exposed (always viewable). For
 * example, the `expose-aside-when="large"` attribute will keep the side menu hidden when the viewport's
 * width is less than `768px`, but when the viewport's width is `768px` or greater, the menu will then
 * always be shown and can no longer be opened or closed like it could when it was hidden for smaller
 * viewports.
 *
 * Using `large` as the attribute's value is a shortcut value to `(min-width:768px)` since it is
 * the most common use-case. However, for added flexibility, any valid media query could be added
 * as the value, such as `(min-width:600px)` or even multiple queries such as
 * `(min-width:750px) and (max-width:1200px)`.

 * @usage
 * ```html
 * <ion-side-menus>
 *   <!-- Center content -->
 *   <ion-side-menu-content>
 *   </ion-side-menu-content>
 *
 *   <!-- Left menu -->
 *   <ion-side-menu expose-aside-when="large">
 *   </ion-side-menu>
 * </ion-side-menus>
 * ```
 * For a complete side menu example, see the
 * {@link ionic.directive:ionSideMenus} documentation.
 */
IonicModule
.directive('exposeAsideWhen', ['$window', function($window) {
  return {
    restrict: 'A',
    require: '^ionSideMenus',
    link: function($scope, $element, $attr, sideMenuCtrl) {

      function checkAsideExpose() {
        var mq = $attr.exposeAsideWhen == 'large' ? '(min-width:768px)' : $attr.exposeAsideWhen;
        sideMenuCtrl.exposeAside($window.matchMedia(mq).matches);
        sideMenuCtrl.activeAsideResizing(false);
      }

      function onResize() {
        sideMenuCtrl.activeAsideResizing(true);
        debouncedCheck();
      }

      var debouncedCheck = ionic.debounce(function() {
        $scope.$apply(checkAsideExpose);
      }, 300, false);

      checkAsideExpose();

      ionic.on('resize', onResize, $window);

      $scope.$on('$destroy', function(){
        ionic.off('resize', onResize, $window);
      });

    }
  };
}]);


var GESTURE_DIRECTIVES = 'onHold onTap onDoubleTap onTouch onRelease onDrag onDragUp onDragRight onDragDown onDragLeft onSwipe onSwipeUp onSwipeRight onSwipeDown onSwipeLeft'.split(' ');

GESTURE_DIRECTIVES.forEach(function(name) {
  IonicModule.directive(name, gestureDirective(name));
});


/**
 * @ngdoc directive
 * @name onHold
 * @module ionic
 * @restrict A
 *
 * @description
 * Touch stays at the same location for 500ms. Similar to long touch events available for AngularJS and jQuery.
 *
 * @usage
 * ```html
 * <button on-hold="onHold()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onTap
 * @module ionic
 * @restrict A
 *
 * @description
 * Quick touch at a location. If the duration of the touch goes
 * longer than 250ms it is no longer a tap gesture.
 *
 * @usage
 * ```html
 * <button on-tap="onTap()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDoubleTap
 * @module ionic
 * @restrict A
 *
 * @description
 * Double tap touch at a location.
 *
 * @usage
 * ```html
 * <button on-double-tap="onDoubleTap()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onTouch
 * @module ionic
 * @restrict A
 *
 * @description
 * Called immediately when the user first begins a touch. This
 * gesture does not wait for a touchend/mouseup.
 *
 * @usage
 * ```html
 * <button on-touch="onTouch()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onRelease
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when the user ends a touch.
 *
 * @usage
 * ```html
 * <button on-release="onRelease()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDrag
 * @module ionic
 * @restrict A
 *
 * @description
 * Move with one touch around on the page. Blocking the scrolling when
 * moving left and right is a good practice. When all the drag events are
 * blocking you disable scrolling on that area.
 *
 * @usage
 * ```html
 * <button on-drag="onDrag()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDragUp
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when the element is dragged up.
 *
 * @usage
 * ```html
 * <button on-drag-up="onDragUp()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDragRight
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when the element is dragged to the right.
 *
 * @usage
 * ```html
 * <button on-drag-right="onDragRight()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDragDown
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when the element is dragged down.
 *
 * @usage
 * ```html
 * <button on-drag-down="onDragDown()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onDragLeft
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when the element is dragged to the left.
 *
 * @usage
 * ```html
 * <button on-drag-left="onDragLeft()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onSwipe
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when a moving touch has a high velocity in any direction.
 *
 * @usage
 * ```html
 * <button on-swipe="onSwipe()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onSwipeUp
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when a moving touch has a high velocity moving up.
 *
 * @usage
 * ```html
 * <button on-swipe-up="onSwipeUp()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onSwipeRight
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when a moving touch has a high velocity moving to the right.
 *
 * @usage
 * ```html
 * <button on-swipe-right="onSwipeRight()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onSwipeDown
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when a moving touch has a high velocity moving down.
 *
 * @usage
 * ```html
 * <button on-swipe-down="onSwipeDown()" class="button">Test</button>
 * ```
 */


/**
 * @ngdoc directive
 * @name onSwipeLeft
 * @module ionic
 * @restrict A
 *
 * @description
 * Called when a moving touch has a high velocity moving to the left.
 *
 * @usage
 * ```html
 * <button on-swipe-left="onSwipeLeft()" class="button">Test</button>
 * ```
 */


function gestureDirective(directiveName) {
  return ['$ionicGesture', '$parse', function($ionicGesture, $parse) {
    var eventType = directiveName.substr(2).toLowerCase();

    return function(scope, element, attr) {
      var fn = $parse( attr[directiveName] );

      var listener = function(ev) {
        scope.$apply(function() {
          fn(scope, {
            $event: ev
          });
        });
      };

      var gesture = $ionicGesture.on(eventType, listener, element);

      scope.$on('$destroy', function() {
        $ionicGesture.off(gesture, eventType, listener);
      });
    };
  }];
}


IonicModule
.directive('ionHeaderBar', tapScrollToTopDirective())

/**
 * @ngdoc directive
 * @name ionHeaderBar
 * @module ionic
 * @restrict E
 *
 * @description
 * Adds a fixed header bar above some content.
 *
 * Can also be a subheader (lower down) if the 'bar-subheader' class is applied.
 * See [the header CSS docs](/docs/components/#subheader).
 *
 * @param {string=} align-title How to align the title. By default the title
 * will be aligned the same as how the platform aligns its titles (iOS centers
 * titles, Android aligns them left).
 * Available: 'left', 'right', or 'center'.  Defaults to the same as the platform.
 * @param {boolean=} no-tap-scroll By default, the header bar will scroll the
 * content to the top when tapped.  Set no-tap-scroll to true to disable this
 * behavior.
 * Available: true or false.  Defaults to false.
 *
 * @usage
 * ```html
 * <ion-header-bar align-title="left" class="bar-positive">
 *   <div class="buttons">
 *     <button class="button" ng-click="doSomething()">Left Button</button>
 *   </div>
 *   <h1 class="title">Title!</h1>
 *   <div class="buttons">
 *     <button class="button">Right Button</button>
 *   </div>
 * </ion-header-bar>
 * <ion-content>
 *   Some content!
 * </ion-content>
 * ```
 */
.directive('ionHeaderBar', headerFooterBarDirective(true))

/**
 * @ngdoc directive
 * @name ionFooterBar
 * @module ionic
 * @restrict E
 *
 * @description
 * Adds a fixed footer bar below some content.
 *
 * Can also be a subfooter (higher up) if the 'bar-subfooter' class is applied.
 * See [the footer CSS docs](/docs/components/#footer).
 *
 * Note: If you use ionFooterBar in combination with ng-if, the surrounding content
 * will not align correctly.  This will be fixed soon.
 *
 * @param {string=} align-title Where to align the title.
 * Available: 'left', 'right', or 'center'.  Defaults to 'center'.
 *
 * @usage
 * ```html
 * <ion-content>
 *   Some content!
 * </ion-content>
 * <ion-footer-bar align-title="left" class="bar-assertive">
 *   <div class="buttons">
 *     <button class="button">Left Button</button>
 *   </div>
 *   <h1 class="title">Title!</h1>
 *   <div class="buttons" ng-click="doSomething()">
 *     <button class="button">Right Button</button>
 *   </div>
 * </ion-footer-bar>
 * ```
 */
.directive('ionFooterBar', headerFooterBarDirective(false));

function tapScrollToTopDirective() {
  return ['$ionicScrollDelegate', function($ionicScrollDelegate) {
    return {
      restrict: 'E',
      link: function($scope, $element, $attr) {
        if ($attr.noTapScroll == 'true') {
          return;
        }
        ionic.on('tap', onTap, $element[0]);
        $scope.$on('$destroy', function() {
          ionic.off('tap', onTap, $element[0]);
        });

        function onTap(e) {
          var depth = 3;
          var current = e.target;
          //Don't scroll to top in certain cases
          while (depth-- && current) {
            if (current.classList.contains('button') ||
                current.tagName.match(/input|textarea|select/i) ||
                current.isContentEditable) {
              return;
            }
            current = current.parentNode;
          }
          var touch = e.gesture && e.gesture.touches[0] || e.detail.touches[0];
          var bounds = $element[0].getBoundingClientRect();
          if (ionic.DomUtil.rectContains(
            touch.pageX, touch.pageY,
            bounds.left, bounds.top - 20,
            bounds.left + bounds.width, bounds.top + bounds.height
          )) {
            $ionicScrollDelegate.scrollTop(true);
          }
        }
      }
    };
  }];
}

function headerFooterBarDirective(isHeader) {
  return ['$document', '$timeout',function($document, $timeout) {
    return {
      restrict: 'E',
      controller: '$ionicHeaderBar',
      compile: function(tElement, $attr) {
        tElement.addClass(isHeader ? 'bar bar-header' : 'bar bar-footer');
        // top style tabs? if so, remove bottom border for seamless display
        $timeout(function() {
          if (isHeader && $document[0].getElementsByClassName('tabs-top').length) tElement.addClass('has-tabs-top');
        });

        return { pre: prelink };
        function prelink($scope, $element, $attr, ctrl) {
          if (isHeader) {
            $scope.$watch(function() { return $element[0].className; }, function(value) {
              var isShown = value.indexOf('ng-hide') === -1;
              var isSubheader = value.indexOf('bar-subheader') !== -1;
              $scope.$hasHeader = isShown && !isSubheader;
              $scope.$hasSubheader = isShown && isSubheader;
              $scope.$emit('$ionicSubheader', $scope.$hasSubheader);
            });
            $scope.$on('$destroy', function() {
              delete $scope.$hasHeader;
              delete $scope.$hasSubheader;
            });
            ctrl.align();
            $scope.$on('$ionicHeader.align', function() {
              ionic.requestAnimationFrame(function() {
                ctrl.align();
              });
            });

          } else {
            $scope.$watch(function() { return $element[0].className; }, function(value) {
              var isShown = value.indexOf('ng-hide') === -1;
              var isSubfooter = value.indexOf('bar-subfooter') !== -1;
              $scope.$hasFooter = isShown && !isSubfooter;
              $scope.$hasSubfooter = isShown && isSubfooter;
            });
            $scope.$on('$destroy', function() {
              delete $scope.$hasFooter;
              delete $scope.$hasSubfooter;
            });
            $scope.$watch('$hasTabs', function(val) {
              $element.toggleClass('has-tabs', !!val);
            });
          }
        }
      }
    };
  }];
}

/**
 * @ngdoc directive
 * @name ionInfiniteScroll
 * @module ionic
 * @parent ionic.directive:ionContent, ionic.directive:ionScroll
 * @restrict E
 *
 * @description
 * The ionInfiniteScroll directive allows you to call a function whenever
 * the user gets to the bottom of the page or near the bottom of the page.
 *
 * The expression you pass in for `on-infinite` is called when the user scrolls
 * greater than `distance` away from the bottom of the content.  Once `on-infinite`
 * is done loading new data, it should broadcast the `scroll.infiniteScrollComplete`
 * event from your controller (see below example).
 *
 * @param {expression} on-infinite What to call when the scroller reaches the
 * bottom.
 * @param {string=} distance The distance from the bottom that the scroll must
 * reach to trigger the on-infinite expression. Default: 1%.
 * @param {string=} spinner The {@link ionic.directive:ionSpinner} to show while loading. The SVG
 * {@link ionic.directive:ionSpinner} is now the default, replacing rotating font icons.
 * @param {string=} icon The icon to show while loading. Default: 'ion-load-d'.  This is depreicated
 * in favor of the SVG {@link ionic.directive:ionSpinner}.
 * @param {boolean=} immediate-check Whether to check the infinite scroll bounds immediately on load.
 *
 * @usage
 * ```html
 * <ion-content ng-controller="MyController">
 *   <ion-list>
 *   ....
 *   ....
 *   </ion-list>
 *
 *   <ion-infinite-scroll
 *     on-infinite="loadMore()"
 *     distance="1%">
 *   </ion-infinite-scroll>
 * </ion-content>
 * ```
 * ```js
 * function MyController($scope, $http) {
 *   $scope.items = [];
 *   $scope.loadMore = function() {
 *     $http.get('/more-items').success(function(items) {
 *       useItems(items);
 *       $scope.$broadcast('scroll.infiniteScrollComplete');
 *     });
 *   };
 *
 *   $scope.$on('$stateChangeSuccess', function() {
 *     $scope.loadMore();
 *   });
 * }
 * ```
 *
 * An easy to way to stop infinite scroll once there is no more data to load
 * is to use angular's `ng-if` directive:
 *
 * ```html
 * <ion-infinite-scroll
 *   ng-if="moreDataCanBeLoaded()"
 *   icon="ion-loading-c"
 *   on-infinite="loadMoreData()">
 * </ion-infinite-scroll>
 * ```
 */
IonicModule
.directive('ionInfiniteScroll', ['$timeout', function($timeout) {
  return {
    restrict: 'E',
    require: ['?^$ionicScroll', 'ionInfiniteScroll'],
    template: function($element, $attrs) {
      if ($attrs.icon) return '<i class="icon {{icon()}} icon-refreshing {{scrollingType}}"></i>';
      return '<ion-spinner icon="{{spinner()}}"></ion-spinner>';
    },
    scope: true,
    controller: '$ionInfiniteScroll',
    link: function($scope, $element, $attrs, ctrls) {
      var infiniteScrollCtrl = ctrls[1];
      var scrollCtrl = infiniteScrollCtrl.scrollCtrl = ctrls[0];
      var jsScrolling = infiniteScrollCtrl.jsScrolling = !!scrollCtrl;
      // if this view is not beneath a scrollCtrl, it can't be injected, proceed w/ native scrolling
      if (jsScrolling) {
        infiniteScrollCtrl.scrollView = scrollCtrl.scrollView;
      } else {
        // grabbing the scrollable element, to determine dimensions, and current scroll pos
        var scrollEl = ionic.DomUtil.getParentOrSelfWithClass($element[0].parentNode,'overflow-scroll');
        infiniteScrollCtrl.scrollEl = scrollEl;
        // if there's no scroll controller, and no overflow scroll div, infinite scroll wont work
        if (!scrollEl) {
          throw 'Infinite scroll must be used inside a scrollable div';
        }
      }
      //bind to appropriate scroll event
      if (jsScrolling) {
        $scope.scrollingType = 'js-scrolling';
        scrollCtrl.$element.on('scroll', infiniteScrollCtrl.checkBounds);
      } else {
        infiniteScrollCtrl.scrollEl.addEventListener('scroll', infiniteScrollCtrl.checkBounds);
      }
      // Optionally check bounds on start after scrollView is fully rendered
      var doImmediateCheck = isDefined($attrs.immediateCheck) ? $scope.$eval($attrs.immediateCheck) : true;
      if (doImmediateCheck) {
        $timeout(function() { infiniteScrollCtrl.checkBounds(); });
      }
    }
  };
}]);

var ITEM_TPL_CONTENT_ANCHOR =
  '<a class="item-content" ng-href="{{$href()}}" target="{{$target()}}"></a>';
var ITEM_TPL_CONTENT =
  '<div class="item-content"></div>';
/**
* @ngdoc directive
* @name ionItem
* @parent ionic.directive:ionList
* @module ionic
* @restrict E
* Creates a list-item that can easily be swiped,
* deleted, reordered, edited, and more.
*
* See {@link ionic.directive:ionList} for a complete example & explanation.
*
* Can be assigned any item class name. See the
* [list CSS documentation](/docs/components/#list).
*
* @usage
*
* ```html
* <ion-list>
*   <ion-item>Hello!</ion-item>
*   <ion-item href="#/detail">
*     Link to detail page
*   </ion-item>
* </ion-list>
* ```
*/
IonicModule
.directive('ionItem', ['$$rAF', function($$rAF) {
      var nextId = 0;
  return {
    restrict: 'E',
    controller: ['$scope', '$element', function($scope, $element) {
      this.$scope = $scope;
      this.$element = $element;
    }],
    scope: true,
    compile: function($element, $attrs) {
      var isAnchor = isDefined($attrs.href) ||
                     isDefined($attrs.ngHref) ||
                     isDefined($attrs.uiSref);
      var isComplexItem = isAnchor ||
        //Lame way of testing, but we have to know at compile what to do with the element
        /ion-(delete|option|reorder)-button/i.test($element.html());

      if (isComplexItem) {
        var innerElement = jqLite(isAnchor ? ITEM_TPL_CONTENT_ANCHOR : ITEM_TPL_CONTENT);
        innerElement.append($element.contents());

        $element.append(innerElement);
        $element.addClass('item item-complex');
      } else {
        $element.addClass('item');
      }

      return function link($scope, $element, $attrs) {
        var listCtrl;
        $scope.$href = function() {
          return $attrs.href || $attrs.ngHref;
        };
        $scope.$target = function() {
          return $attrs.target || '_self';
        };

        var content = $element[0].querySelector('.item-content');
        if (content) {
          $scope.$on('$collectionRepeatLeave', function() {
            if (content && content.$$ionicOptionsOpen) {
              content.style[ionic.CSS.TRANSFORM] = '';
              content.style[ionic.CSS.TRANSITION] = 'none';
              $$rAF(function() {
                content.style[ionic.CSS.TRANSITION] = '';
              });
              content.$$ionicOptionsOpen = false;
            }
          });
        }
      };

    }
  };
}]);

var ITEM_TPL_DELETE_BUTTON =
  '<div class="item-left-edit item-delete enable-pointer-events">' +
  '</div>';
/**
* @ngdoc directive
* @name ionDeleteButton
* @parent ionic.directive:ionItem
* @module ionic
* @restrict E
* Creates a delete button inside a list item, that is visible when the
* {@link ionic.directive:ionList ionList parent's} `show-delete` evaluates to true or
* `$ionicListDelegate.showDelete(true)` is called.
*
* Takes any ionicon as a class.
*
* See {@link ionic.directive:ionList} for a complete example & explanation.
*
* @usage
*
* ```html
* <ion-list show-delete="shouldShowDelete">
*   <ion-item>
*     <ion-delete-button class="ion-minus-circled"></ion-delete-button>
*     Hello, list item!
*   </ion-item>
* </ion-list>
* <ion-toggle ng-model="shouldShowDelete">
*   Show Delete?
* </ion-toggle>
* ```
*/
IonicModule
.directive('ionDeleteButton', function() {
  return {
    restrict: 'E',
    require: ['^^ionItem', '^?ionList'],
    //Run before anything else, so we can move it before other directives process
    //its location (eg ngIf relies on the location of the directive in the dom)
    priority: Number.MAX_VALUE,
    compile: function($element, $attr) {
      //Add the classes we need during the compile phase, so that they stay
      //even if something else like ngIf removes the element and re-addss it
      $attr.$set('class', ($attr['class'] || '') + ' button icon button-icon', true);
      return function($scope, $element, $attr, ctrls) {
        var itemCtrl = ctrls[0];
        var listCtrl = ctrls[1];
        var container = jqLite(ITEM_TPL_DELETE_BUTTON);
        container.append($element);
        itemCtrl.$element.append(container).addClass('item-left-editable');

        init();
        $scope.$on('$ionic.reconnectScope', init);
        function init() {
          listCtrl = listCtrl || $element.controller('ionList');
          if (listCtrl && listCtrl.showDelete()) {
            container.addClass('visible active');
          }
        }
      };
    }
  };
});


IonicModule
.directive('itemFloatingLabel', function() {
  return {
    restrict: 'C',
    link: function(scope, element) {
      var el = element[0];
      var input = el.querySelector('input, textarea');
      var inputLabel = el.querySelector('.input-label');

      if (!input || !inputLabel) return;

      var onInput = function() {
        if (input.value) {
          inputLabel.classList.add('has-input');
        } else {
          inputLabel.classList.remove('has-input');
        }
      };

      input.addEventListener('input', onInput);

      var ngModelCtrl = jqLite(input).controller('ngModel');
      if (ngModelCtrl) {
        ngModelCtrl.$render = function() {
          input.value = ngModelCtrl.$viewValue || '';
          onInput();
        };
      }

      scope.$on('$destroy', function() {
        input.removeEventListener('input', onInput);
      });
    }
  };
});

var ITEM_TPL_OPTION_BUTTONS =
  '<div class="item-options invisible">' +
  '</div>';
/**
* @ngdoc directive
* @name ionOptionButton
* @parent ionic.directive:ionItem
* @module ionic
* @restrict E
* Creates an option button inside a list item, that is visible when the item is swiped
* to the left by the user.  Swiped open option buttons can be hidden with
* {@link ionic.service:$ionicListDelegate#closeOptionButtons $ionicListDelegate#closeOptionButtons}.
*
* Can be assigned any button class.
*
* See {@link ionic.directive:ionList} for a complete example & explanation.
*
* @usage
*
* ```html
* <ion-list>
*   <ion-item>
*     I love kittens!
*     <ion-option-button class="button-positive">Share</ion-option-button>
*     <ion-option-button class="button-assertive">Edit</ion-option-button>
*   </ion-item>
* </ion-list>
* ```
*/
IonicModule
.directive('ionOptionButton', ['$compile', function($compile) {
  function stopPropagation(e) {
    e.stopPropagation();
  }
  return {
    restrict: 'E',
    require: '^ionItem',
    priority: Number.MAX_VALUE,
    compile: function($element, $attr) {
      $attr.$set('class', ($attr['class'] || '') + ' button', true);
      return function($scope, $element, $attr, itemCtrl) {
        if (!itemCtrl.optionsContainer) {
          itemCtrl.optionsContainer = jqLite(ITEM_TPL_OPTION_BUTTONS);
          itemCtrl.$element.append(itemCtrl.optionsContainer);
        }
        itemCtrl.optionsContainer.append($element);

        itemCtrl.$element.addClass('item-right-editable');

        //Don't bubble click up to main .item
        $element.on('click', stopPropagation);
      };
    }
  };
}]);

var ITEM_TPL_REORDER_BUTTON =
  '<div data-prevent-scroll="true" class="item-right-edit item-reorder enable-pointer-events">' +
  '</div>';

/**
* @ngdoc directive
* @name ionReorderButton
* @parent ionic.directive:ionItem
* @module ionic
* @restrict E
* Creates a reorder button inside a list item, that is visible when the
* {@link ionic.directive:ionList ionList parent's} `show-reorder` evaluates to true or
* `$ionicListDelegate.showReorder(true)` is called.
*
* Can be dragged to reorder items in the list. Takes any ionicon class.
*
* Note: Reordering works best when used with `ng-repeat`.  Be sure that all `ion-item` children of an `ion-list` are part of the same `ng-repeat` expression.
*
* When an item reorder is complete, the expression given in the `on-reorder` attribute is called. The `on-reorder` expression is given two locals that can be used: `$fromIndex` and `$toIndex`.  See below for an example.
*
* Look at {@link ionic.directive:ionList} for more examples.
*
* @usage
*
* ```html
* <ion-list ng-controller="MyCtrl" show-reorder="true">
*   <ion-item ng-repeat="item in items">
*     Item {{item}}
*     <ion-reorder-button class="ion-navicon"
*                         on-reorder="moveItem(item, $fromIndex, $toIndex)">
*     </ion-reorder-button>
*   </ion-item>
* </ion-list>
* ```
* ```js
* function MyCtrl($scope) {
*   $scope.items = [1, 2, 3, 4];
*   $scope.moveItem = function(item, fromIndex, toIndex) {
*     //Move the item in the array
*     $scope.items.splice(fromIndex, 1);
*     $scope.items.splice(toIndex, 0, item);
*   };
* }
* ```
*
* @param {expression=} on-reorder Expression to call when an item is reordered.
* Parameters given: $fromIndex, $toIndex.
*/
IonicModule
.directive('ionReorderButton', ['$parse', function($parse) {
  return {
    restrict: 'E',
    require: ['^ionItem', '^?ionList'],
    priority: Number.MAX_VALUE,
    compile: function($element, $attr) {
      $attr.$set('class', ($attr['class'] || '') + ' button icon button-icon', true);
      $element[0].setAttribute('data-prevent-scroll', true);
      return function($scope, $element, $attr, ctrls) {
        var itemCtrl = ctrls[0];
        var listCtrl = ctrls[1];
        var onReorderFn = $parse($attr.onReorder);

        $scope.$onReorder = function(oldIndex, newIndex) {
          onReorderFn($scope, {
            $fromIndex: oldIndex,
            $toIndex: newIndex
          });
        };

        // prevent clicks from bubbling up to the item
        if(!$attr.ngClick && !$attr.onClick && !$attr.onclick){
          $element[0].onclick = function(e){e.stopPropagation(); return false;};
        }

        var container = jqLite(ITEM_TPL_REORDER_BUTTON);
        container.append($element);
        itemCtrl.$element.append(container).addClass('item-right-editable');

        if (listCtrl && listCtrl.showReorder()) {
          container.addClass('visible active');
        }
      };
    }
  };
}]);

/**
 * @ngdoc directive
 * @name keyboardAttach
 * @module ionic
 * @restrict A
 *
 * @description
 * keyboard-attach is an attribute directive which will cause an element to float above
 * the keyboard when the keyboard shows. Currently only supports the
 * [ion-footer-bar]({{ page.versionHref }}/api/directive/ionFooterBar/) directive.
 *
 * ### Notes
 * - This directive requires the
 * [Ionic Keyboard Plugin](https://github.com/driftyco/ionic-plugins-keyboard).
 * - On Android not in fullscreen mode, i.e. you have
 *   `<preference name="Fullscreen" value="false" />` or no preference in your `config.xml` file,
 *   this directive is unnecessary since it is the default behavior.
 * - On iOS, if there is an input in your footer, you will need to set
 *   `cordova.plugins.Keyboard.disableScroll(true)`.
 *
 * @usage
 *
 * ```html
 *  <ion-footer-bar align-title="left" keyboard-attach class="bar-assertive">
 *    <h1 class="title">Title!</h1>
 *  </ion-footer-bar>
 * ```
 */

IonicModule
.directive('keyboardAttach', function() {
  return function(scope, element, attrs) {
    ionic.on('native.keyboardshow', onShow, window);
    ionic.on('native.keyboardhide', onHide, window);

    //deprecated
    ionic.on('native.showkeyboard', onShow, window);
    ionic.on('native.hidekeyboard', onHide, window);


    var scrollCtrl;

    function onShow(e) {
      if (ionic.Platform.isAndroid() && !ionic.Platform.isFullScreen) {
        return;
      }

      //for testing
      var keyboardHeight = e.keyboardHeight || e.detail.keyboardHeight;
      element.css('bottom', keyboardHeight + "px");
      scrollCtrl = element.controller('$ionicScroll');
      if (scrollCtrl) {
        scrollCtrl.scrollView.__container.style.bottom = keyboardHeight + keyboardAttachGetClientHeight(element[0]) + "px";
      }
    }

    function onHide() {
      if (ionic.Platform.isAndroid() && !ionic.Platform.isFullScreen) {
        return;
      }

      element.css('bottom', '');
      if (scrollCtrl) {
        scrollCtrl.scrollView.__container.style.bottom = '';
      }
    }

    scope.$on('$destroy', function() {
      ionic.off('native.keyboardshow', onShow, window);
      ionic.off('native.keyboardhide', onHide, window);

      //deprecated
      ionic.off('native.showkeyboard', onShow, window);
      ionic.off('native.hidekeyboard', onHide, window);
    });
  };
});

function keyboardAttachGetClientHeight(element) {
  return element.clientHeight;
}

/**
* @ngdoc directive
* @name ionList
* @module ionic
* @delegate ionic.service:$ionicListDelegate
* @codepen JsHjf
* @restrict E
* @description
* The List is a widely used interface element in almost any mobile app, and can include
* content ranging from basic text all the way to buttons, toggles, icons, and thumbnails.
*
* Both the list, which contains items, and the list items themselves can be any HTML
* element. The containing element requires the `list` class and each list item requires
* the `item` class.
*
* However, using the ionList and ionItem directives make it easy to support various
* interaction modes such as swipe to edit, drag to reorder, and removing items.
*
* Related: {@link ionic.directive:ionItem}, {@link ionic.directive:ionOptionButton}
* {@link ionic.directive:ionReorderButton}, {@link ionic.directive:ionDeleteButton}, [`list CSS documentation`](/docs/components/#list).
*
* @usage
*
* Basic Usage:
*
* ```html
* <ion-list>
*   <ion-item ng-repeat="item in items">
*     {% raw %}Hello, {{item}}!{% endraw %}
*   </ion-item>
* </ion-list>
* ```
*
* Advanced Usage: Thumbnails, Delete buttons, Reordering, Swiping
*
* ```html
* <ion-list ng-controller="MyCtrl"
*           show-delete="shouldShowDelete"
*           show-reorder="shouldShowReorder"
*           can-swipe="listCanSwipe">
*   <ion-item ng-repeat="item in items"
*             class="item-thumbnail-left">
*
*     {% raw %}<img ng-src="{{item.img}}">
*     <h2>{{item.title}}</h2>
*     <p>{{item.description}}</p>{% endraw %}
*     <ion-option-button class="button-positive"
*                        ng-click="share(item)">
*       Share
*     </ion-option-button>
*     <ion-option-button class="button-info"
*                        ng-click="edit(item)">
*       Edit
*     </ion-option-button>
*     <ion-delete-button class="ion-minus-circled"
*                        ng-click="items.splice($index, 1)">
*     </ion-delete-button>
*     <ion-reorder-button class="ion-navicon"
*                         on-reorder="reorderItem(item, $fromIndex, $toIndex)">
*     </ion-reorder-button>
*
*   </ion-item>
* </ion-list>
* ```
*
*```javascript
* app.controller('MyCtrl', function($scope) {
*  $scope.shouldShowDelete = false;
*  $scope.shouldShowReorder = false;
*  $scope.listCanSwipe = true
* });
*```
*
* @param {string=} delegate-handle The handle used to identify this list with
* {@link ionic.service:$ionicListDelegate}.
* @param type {string=} The type of list to use (list-inset or card)
* @param show-delete {boolean=} Whether the delete buttons for the items in the list are
* currently shown or hidden.
* @param show-reorder {boolean=} Whether the reorder buttons for the items in the list are
* currently shown or hidden.
* @param can-swipe {boolean=} Whether the items in the list are allowed to be swiped to reveal
* option buttons. Default: true.
*/
IonicModule
.directive('ionList', [
  '$timeout',
function($timeout) {
  return {
    restrict: 'E',
    require: ['ionList', '^?$ionicScroll'],
    controller: '$ionicList',
    compile: function($element, $attr) {
      var listEl = jqLite('<div class="list">')
        .append($element.contents())
        .addClass($attr.type);

      $element.append(listEl);

      return function($scope, $element, $attrs, ctrls) {
        var listCtrl = ctrls[0];
        var scrollCtrl = ctrls[1];

        // Wait for child elements to render...
        $timeout(init);

        function init() {
          var listView = listCtrl.listView = new ionic.views.ListView({
            el: $element[0],
            listEl: $element.children()[0],
            scrollEl: scrollCtrl && scrollCtrl.element,
            scrollView: scrollCtrl && scrollCtrl.scrollView,
            onReorder: function(el, oldIndex, newIndex) {
              var itemScope = jqLite(el).scope();
              if (itemScope && itemScope.$onReorder) {
                // Make sure onReorder is called in apply cycle,
                // but also make sure it has no conflicts by doing
                // $evalAsync
                $timeout(function() {
                  itemScope.$onReorder(oldIndex, newIndex);
                });
              }
            },
            canSwipe: function() {
              return listCtrl.canSwipeItems();
            }
          });

          $scope.$on('$destroy', function() {
            if (listView) {
              listView.deregister && listView.deregister();
              listView = null;
            }
          });

          if (isDefined($attr.canSwipe)) {
            $scope.$watch('!!(' + $attr.canSwipe + ')', function(value) {
              listCtrl.canSwipeItems(value);
            });
          }
          if (isDefined($attr.showDelete)) {
            $scope.$watch('!!(' + $attr.showDelete + ')', function(value) {
              listCtrl.showDelete(value);
            });
          }
          if (isDefined($attr.showReorder)) {
            $scope.$watch('!!(' + $attr.showReorder + ')', function(value) {
              listCtrl.showReorder(value);
            });
          }

          $scope.$watch(function() {
            return listCtrl.showDelete();
          }, function(isShown, wasShown) {
            //Only use isShown=false if it was already shown
            if (!isShown && !wasShown) { return; }

            if (isShown) listCtrl.closeOptionButtons();
            listCtrl.canSwipeItems(!isShown);

            $element.children().toggleClass('list-left-editing', isShown);
            $element.toggleClass('disable-pointer-events', isShown);

            var deleteButton = jqLite($element[0].getElementsByClassName('item-delete'));
            setButtonShown(deleteButton, listCtrl.showDelete);
          });

          $scope.$watch(function() {
            return listCtrl.showReorder();
          }, function(isShown, wasShown) {
            //Only use isShown=false if it was already shown
            if (!isShown && !wasShown) { return; }

            if (isShown) listCtrl.closeOptionButtons();
            listCtrl.canSwipeItems(!isShown);

            $element.children().toggleClass('list-right-editing', isShown);
            $element.toggleClass('disable-pointer-events', isShown);

            var reorderButton = jqLite($element[0].getElementsByClassName('item-reorder'));
            setButtonShown(reorderButton, listCtrl.showReorder);
          });

          function setButtonShown(el, shown) {
            shown() && el.addClass('visible') || el.removeClass('active');
            ionic.requestAnimationFrame(function() {
              shown() && el.addClass('active') || el.removeClass('visible');
            });
          }
        }

      };
    }
  };
}]);

/**
 * @ngdoc directive
 * @name menuClose
 * @module ionic
 * @restrict AC
 *
 * @description
 * `menu-close` is an attribute directive that closes a currently opened side menu.
 * Note that by default, navigation transitions will not animate between views when
 * the menu is open. Additionally, this directive will reset the entering view's
 * history stack, making the new page the root of the history stack. This is done
 * to replicate the user experience seen in most side menu implementations, which is
 * to not show the back button at the root of the stack and show only the
 * menu button. We recommend that you also use the `enable-menu-with-back-views="false"`
 * {@link ionic.directive:ionSideMenus} attribute when using the menuClose directive.
 *
 * @usage
 * Below is an example of a link within a side menu. Tapping this link would
 * automatically close the currently opened menu.
 *
 * ```html
 * <a menu-close href="#/home" class="item">Home</a>
 * ```
 */
IonicModule
.directive('menuClose', ['$ionicHistory', function($ionicHistory) {
  return {
    restrict: 'AC',
    link: function($scope, $element) {
      $element.bind('click', function() {
        var sideMenuCtrl = $element.inheritedData('$ionSideMenusController');
        if (sideMenuCtrl) {
          $ionicHistory.nextViewOptions({
            historyRoot: true,
            disableAnimate: true,
            expire: 300
          });
          sideMenuCtrl.close();
        }
      });
    }
  };
}]);

/**
 * @ngdoc directive
 * @name menuToggle
 * @module ionic
 * @restrict AC
 *
 * @description
 * Toggle a side menu on the given side.
 *
 * @usage
 * Below is an example of a link within a nav bar. Tapping this button
 * would open the given side menu, and tapping it again would close it.
 *
 * ```html
 * <ion-nav-bar>
 *   <ion-nav-buttons side="left">
 *    <button menu-toggle="left" class="button button-icon icon ion-navicon"></button>
 *   </ion-nav-buttons>
 * </ion-nav-bar>
 * ```
 *
 * ### Button Hidden On Child Views
 * By default, the menu toggle button will only appear on a root
 * level side-menu page. Navigating in to child views will hide the menu-
 * toggle button. They can be made visible on child pages by setting the
 * enable-menu-with-back-views attribute of the {@link ionic.directive:ionSideMenus}
 * directive to true.
 *
 * ```html
 * <ion-side-menus enable-menu-with-back-views="true">
 * ```
 */
IonicModule
.directive('menuToggle', function() {
  return {
    restrict: 'AC',
    link: function($scope, $element, $attr) {
      $scope.$on('$ionicView.beforeEnter', function(ev, viewData) {
        if (viewData.enableBack) {
          var sideMenuCtrl = $element.inheritedData('$ionSideMenusController');
          if (!sideMenuCtrl.enableMenuWithBackViews()) {
            $element.addClass('hide');
          }
        } else {
          $element.removeClass('hide');
        }
      });

      $element.bind('click', function() {
        var sideMenuCtrl = $element.inheritedData('$ionSideMenusController');
        sideMenuCtrl && sideMenuCtrl.toggle($attr.menuToggle);
      });
    }
  };
});

/*
 * We don't document the ionModal directive, we instead document
 * the $ionicModal service
 */
IonicModule
.directive('ionModal', [function() {
  return {
    restrict: 'E',
    transclude: true,
    replace: true,
    controller: [function() {}],
    template: '<div class="modal-backdrop">' +
                '<div class="modal-backdrop-bg"></div>' +
                '<div class="modal-wrapper" ng-transclude></div>' +
              '</div>'
  };
}]);

IonicModule
.directive('ionModalView', function() {
  return {
    restrict: 'E',
    compile: function(element, attr) {
      element.addClass('modal');
    }
  };
});

/**
 * @ngdoc directive
 * @name ionNavBackButton
 * @module ionic
 * @restrict E
 * @parent ionNavBar
 * @description
 * Creates a back button inside an {@link ionic.directive:ionNavBar}.
 *
 * The back button will appear when the user is able to go back in the current navigation stack. By
 * default, the markup of the back button is automatically built using platform-appropriate defaults
 * (iOS back button icon on iOS and Android icon on Android).
 *
 * Additionally, the button is automatically set to `$ionicGoBack()` on click/tap. By default, the
 * app will navigate back one view when the back button is clicked.  More advanced behavior is also
 * possible, as outlined below.
 *
 * @usage
 *
 * Recommended markup for default settings:
 *
 * ```html
 * <ion-nav-bar>
 *   <ion-nav-back-button>
 *   </ion-nav-back-button>
 * </ion-nav-bar>
 * ```
 *
 * With custom inner markup, and automatically adds a default click action:
 *
 * ```html
 * <ion-nav-bar>
 *   <ion-nav-back-button class="button-clear">
 *     <i class="ion-arrow-left-c"></i> Back
 *   </ion-nav-back-button>
 * </ion-nav-bar>
 * ```
 *
 * With custom inner markup and custom click action, using {@link ionic.service:$ionicHistory}:
 *
 * ```html
 * <ion-nav-bar ng-controller="MyCtrl">
 *   <ion-nav-back-button class="button-clear"
 *     ng-click="myGoBack()">
 *     <i class="ion-arrow-left-c"></i> Back
 *   </ion-nav-back-button>
 * </ion-nav-bar>
 * ```
 * ```js
 * function MyCtrl($scope, $ionicHistory) {
 *   $scope.myGoBack = function() {
 *     $ionicHistory.goBack();
 *   };
 * }
 * ```
 */
IonicModule
.directive('ionNavBackButton', ['$ionicConfig', '$document', function($ionicConfig, $document) {
  return {
    restrict: 'E',
    require: '^ionNavBar',
    compile: function(tElement, tAttrs) {

      // clone the back button, but as a <div>
      var buttonEle = $document[0].createElement('button');
      for (var n in tAttrs.$attr) {
        buttonEle.setAttribute(tAttrs.$attr[n], tAttrs[n]);
      }

      if (!tAttrs.ngClick) {
        buttonEle.setAttribute('ng-click', '$ionicGoBack($event)');
      }

      buttonEle.className = 'button back-button hide buttons ' + (tElement.attr('class') || '');
      buttonEle.innerHTML = tElement.html() || '';

      var childNode;
      var hasIcon = hasIconClass(tElement[0]);
      var hasInnerText;
      var hasButtonText;
      var hasPreviousTitle;

      for (var x = 0; x < tElement[0].childNodes.length; x++) {
        childNode = tElement[0].childNodes[x];
        if (childNode.nodeType === 1) {
          if (hasIconClass(childNode)) {
            hasIcon = true;
          } else if (childNode.classList.contains('default-title')) {
            hasButtonText = true;
          } else if (childNode.classList.contains('previous-title')) {
            hasPreviousTitle = true;
          }
        } else if (!hasInnerText && childNode.nodeType === 3) {
          hasInnerText = !!childNode.nodeValue.trim();
        }
      }

      function hasIconClass(ele) {
        return /ion-|icon/.test(ele.className);
      }

      var defaultIcon = $ionicConfig.backButton.icon();
      if (!hasIcon && defaultIcon && defaultIcon !== 'none') {
        buttonEle.innerHTML = '<i class="icon ' + defaultIcon + '"></i> ' + buttonEle.innerHTML;
        buttonEle.className += ' button-clear';
      }

      if (!hasInnerText) {
        var buttonTextEle = $document[0].createElement('span');
        buttonTextEle.className = 'back-text';

        if (!hasButtonText && $ionicConfig.backButton.text()) {
          buttonTextEle.innerHTML += '<span class="default-title">' + $ionicConfig.backButton.text() + '</span>';
        }
        if (!hasPreviousTitle && $ionicConfig.backButton.previousTitleText()) {
          buttonTextEle.innerHTML += '<span class="previous-title"></span>';
        }
        buttonEle.appendChild(buttonTextEle);

      }

      tElement.attr('class', 'hide');
      tElement.empty();

      return {
        pre: function($scope, $element, $attr, navBarCtrl) {
          // only register the plain HTML, the navBarCtrl takes care of scope/compile/link
          navBarCtrl.navElement('backButton', buttonEle.outerHTML);
          buttonEle = null;
        }
      };
    }
  };
}]);


/**
 * @ngdoc directive
 * @name ionNavBar
 * @module ionic
 * @delegate ionic.service:$ionicNavBarDelegate
 * @restrict E
 *
 * @description
 * If we have an {@link ionic.directive:ionNavView} directive, we can also create an
 * `<ion-nav-bar>`, which will create a topbar that updates as the application state changes.
 *
 * We can add a back button by putting an {@link ionic.directive:ionNavBackButton} inside.
 *
 * We can add buttons depending on the currently visible view using
 * {@link ionic.directive:ionNavButtons}.
 *
 * Note that the ion-nav-bar element will only work correctly if your content has an
 * ionView around it.
 *
 * @usage
 *
 * ```html
 * <body ng-app="starter">
 *   <!-- The nav bar that will be updated as we navigate -->
 *   <ion-nav-bar class="bar-positive">
 *   </ion-nav-bar>
 *
 *   <!-- where the initial view template will be rendered -->
 *   <ion-nav-view>
 *     <ion-view>
 *       <ion-content>Hello!</ion-content>
 *     </ion-view>
 *   </ion-nav-view>
 * </body>
 * ```
 *
 * @param {string=} delegate-handle The handle used to identify this navBar
 * with {@link ionic.service:$ionicNavBarDelegate}.
 * @param align-title {string=} Where to align the title of the navbar.
 * Available: 'left', 'right', 'center'. Defaults to 'center'.
 * @param {boolean=} no-tap-scroll By default, the navbar will scroll the content
 * to the top when tapped.  Set no-tap-scroll to true to disable this behavior.
 *
 * </table><br/>
 */
IonicModule
.directive('ionNavBar', function() {
  return {
    restrict: 'E',
    controller: '$ionicNavBar',
    scope: true,
    link: function($scope, $element, $attr, ctrl) {
      ctrl.init();
    }
  };
});


/**
 * @ngdoc directive
 * @name ionNavButtons
 * @module ionic
 * @restrict E
 * @parent ionNavView
 *
 * @description
 * Use nav buttons to set the buttons on your {@link ionic.directive:ionNavBar}
 * from within an {@link ionic.directive:ionView}. This gives each
 * view template the ability to specify which buttons should show in the nav bar,
 * overriding any default buttons already placed in the nav bar.
 *
 * Any buttons you declare will be positioned on the navbar's corresponding side. Primary
 * buttons generally map to the left side of the header, and secondary buttons are
 * generally on the right side. However, their exact locations are platform-specific.
 * For example, in iOS, the primary buttons are on the far left of the header, and
 * secondary buttons are on the far right, with the header title centered between them.
 * For Android, however, both groups of buttons are on the far right of the header,
 * with the header title aligned left.
 *
 * We recommend always using `primary` and `secondary`, so the buttons correctly map
 * to the side familiar to users of each platform. However, in cases where buttons should
 * always be on an exact side, both `left` and `right` sides are still available. For
 * example, a toggle button for a left side menu should be on the left side; in this case,
 * we'd recommend using `side="left"`, so it's always on the left, no matter the platform.
 *
 * ***Note*** that `ion-nav-buttons` must be immediate descendants of the `ion-view` or
 * `ion-nav-bar` element (basically, don't wrap it in another div).
 *
 * @usage
 * ```html
 * <ion-nav-bar>
 * </ion-nav-bar>
 * <ion-nav-view>
 *   <ion-view>
 *     <ion-nav-buttons side="primary">
 *       <button class="button" ng-click="doSomething()">
 *         I'm a button on the primary of the navbar!
 *       </button>
 *     </ion-nav-buttons>
 *     <ion-content>
 *       Some super content here!
 *     </ion-content>
 *   </ion-view>
 * </ion-nav-view>
 * ```
 *
 * @param {string} side The side to place the buttons in the
 * {@link ionic.directive:ionNavBar}. Available sides: `primary`, `secondary`, `left`, and `right`.
 */
IonicModule
.directive('ionNavButtons', ['$document', function($document) {
  return {
    require: '^ionNavBar',
    restrict: 'E',
    compile: function(tElement, tAttrs) {
      var side = 'left';

      if (/^primary|secondary|right$/i.test(tAttrs.side || '')) {
        side = tAttrs.side.toLowerCase();
      }

      var spanEle = $document[0].createElement('span');
      spanEle.className = side + '-buttons';
      spanEle.innerHTML = tElement.html();

      var navElementType = side + 'Buttons';

      tElement.attr('class', 'hide');
      tElement.empty();

      return {
        pre: function($scope, $element, $attrs, navBarCtrl) {
          // only register the plain HTML, the navBarCtrl takes care of scope/compile/link

          var parentViewCtrl = $element.parent().data('$ionViewController');
          if (parentViewCtrl) {
            // if the parent is an ion-view, then these are ion-nav-buttons for JUST this ion-view
            parentViewCtrl.navElement(navElementType, spanEle.outerHTML);

          } else {
            // these are buttons for all views that do not have their own ion-nav-buttons
            navBarCtrl.navElement(navElementType, spanEle.outerHTML);
          }

          spanEle = null;
        }
      };
    }
  };
}]);

/**
 * @ngdoc directive
 * @name navDirection
 * @module ionic
 * @restrict A
 *
 * @description
 * The direction which the nav view transition should animate. Available options
 * are: `forward`, `back`, `enter`, `exit`, `swap`.
 *
 * @usage
 *
 * ```html
 * <a nav-direction="forward" href="#/home">Home</a>
 * ```
 */
IonicModule
.directive('navDirection', ['$ionicViewSwitcher', function($ionicViewSwitcher) {
  return {
    restrict: 'A',
    priority: 1000,
    link: function($scope, $element, $attr) {
      $element.bind('click', function() {
        $ionicViewSwitcher.nextDirection($attr.navDirection);
      });
    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionNavTitle
 * @module ionic
 * @restrict E
 * @parent ionNavView
 *
 * @description
 *
 * The nav title directive replaces an {@link ionic.directive:ionNavBar} title text with
 * custom HTML from within an {@link ionic.directive:ionView} template. This gives each
 * view the ability to specify its own custom title element, such as an image or any HTML,
 * rather than being text-only. Alternatively, text-only titles can be updated using the
 * `view-title` {@link ionic.directive:ionView} attribute.
 *
 * Note that `ion-nav-title` must be an immediate descendant of the `ion-view` or
 * `ion-nav-bar` element (basically don't wrap it in another div).
 *
 * @usage
 * ```html
 * <ion-nav-bar>
 * </ion-nav-bar>
 * <ion-nav-view>
 *   <ion-view>
 *     <ion-nav-title>
 *       <img src="logo.svg">
 *     </ion-nav-title>
 *     <ion-content>
 *       Some super content here!
 *     </ion-content>
 *   </ion-view>
 * </ion-nav-view>
 * ```
 *
 */
IonicModule
.directive('ionNavTitle', ['$document', function($document) {
  return {
    require: '^ionNavBar',
    restrict: 'E',
    compile: function(tElement, tAttrs) {
      var navElementType = 'title';
      var spanEle = $document[0].createElement('span');
      for (var n in tAttrs.$attr) {
        spanEle.setAttribute(tAttrs.$attr[n], tAttrs[n]);
      }
      spanEle.classList.add('nav-bar-title');
      spanEle.innerHTML = tElement.html();

      tElement.attr('class', 'hide');
      tElement.empty();

      return {
        pre: function($scope, $element, $attrs, navBarCtrl) {
          // only register the plain HTML, the navBarCtrl takes care of scope/compile/link

          var parentViewCtrl = $element.parent().data('$ionViewController');
          if (parentViewCtrl) {
            // if the parent is an ion-view, then these are ion-nav-buttons for JUST this ion-view
            parentViewCtrl.navElement(navElementType, spanEle.outerHTML);

          } else {
            // these are buttons for all views that do not have their own ion-nav-buttons
            navBarCtrl.navElement(navElementType, spanEle.outerHTML);
          }

          spanEle = null;
        }
      };
    }
  };
}]);

/**
 * @ngdoc directive
 * @name navTransition
 * @module ionic
 * @restrict A
 *
 * @description
 * The transition type which the nav view transition should use when it animates.
 * Current, options are `ios`, `android`, and `none`. More options coming soon.
 *
 * @usage
 *
 * ```html
 * <a nav-transition="none" href="#/home">Home</a>
 * ```
 */
IonicModule
.directive('navTransition', ['$ionicViewSwitcher', function($ionicViewSwitcher) {
  return {
    restrict: 'A',
    priority: 1000,
    link: function($scope, $element, $attr) {
      $element.bind('click', function() {
        $ionicViewSwitcher.nextTransition($attr.navTransition);
      });
    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionNavView
 * @module ionic
 * @restrict E
 * @codepen odqCz
 *
 * @description
 * As a user navigates throughout your app, Ionic is able to keep track of their
 * navigation history. By knowing their history, transitions between views
 * correctly enter and exit using the platform's transition style. An additional
 * benefit to Ionic's navigation system is its ability to manage multiple
 * histories. For example, each tab can have it's own navigation history stack.
 *
 * Ionic uses the AngularUI Router module so app interfaces can be organized
 * into various "states". Like Angular's core $route service, URLs can be used
 * to control the views. However, the AngularUI Router provides a more powerful
 * state manager in that states are bound to named, nested, and parallel views,
 * allowing more than one template to be rendered on the same page.
 * Additionally, each state is not required to be bound to a URL, and data can
 * be pushed to each state which allows much flexibility.
 *
 * The ionNavView directive is used to render templates in your application. Each template
 * is part of a state. States are usually mapped to a url, and are defined programatically
 * using angular-ui-router (see [their docs](https://github.com/angular-ui/ui-router/wiki),
 * and remember to replace ui-view with ion-nav-view in examples).
 *
 * @usage
 * In this example, we will create a navigation view that contains our different states for the app.
 *
 * To do this, in our markup we use ionNavView top level directive. To display a header bar we use
 * the {@link ionic.directive:ionNavBar} directive that updates as we navigate through the
 * navigation stack.
 *
 * Next, we need to setup our states that will be rendered.
 *
 * ```js
 * var app = angular.module('myApp', ['ionic']);
 * app.config(function($stateProvider) {
 *   $stateProvider
 *   .state('index', {
 *     url: '/',
 *     templateUrl: 'home.html'
 *   })
 *   .state('music', {
 *     url: '/music',
 *     templateUrl: 'music.html'
 *   });
 * });
 * ```
 * Then on app start, $stateProvider will look at the url, see it matches the index state,
 * and then try to load home.html into the `<ion-nav-view>`.
 *
 * Pages are loaded by the URLs given. One simple way to create templates in Angular is to put
 * them directly into your HTML file and use the `<script type="text/ng-template">` syntax.
 * So here is one way to put home.html into our app:
 *
 * ```html
 * <script id="home" type="text/ng-template">
 *   <!-- The title of the ion-view will be shown on the navbar -->
 *   <ion-view view-title="Home">
 *     <ion-content ng-controller="HomeCtrl">
 *       <!-- The content of the page -->
 *       <a href="#/music">Go to music page!</a>
 *     </ion-content>
 *   </ion-view>
 * </script>
 * ```
 *
 * This is good to do because the template will be cached for very fast loading, instead of
 * having to fetch them from the network.
 *
 * ## Caching
 *
 * By default, views are cached to improve performance. When a view is navigated away from, its
 * element is left in the DOM, and its scope is disconnected from the `$watch` cycle. When
 * navigating to a view that is already cached, its scope is then reconnected, and the existing
 * element that was left in the DOM becomes the active view. This also allows for the scroll
 * position of previous views to be maintained.
 *
 * Caching can be disabled and enabled in multiple ways. By default, Ionic will cache a maximum of
 * 10 views, and not only can this be configured, but apps can also explicitly state which views
 * should and should not be cached.
 *
 * Note that because we are caching these views, *we aren’t destroying scopes*. Instead, scopes
 * are being disconnected from the watch cycle. Because scopes are not being destroyed and
 * recreated, controllers are not loading again on a subsequent viewing. If the app/controller
 * needs to know when a view has entered or has left, then view events emitted from the
 * {@link ionic.directive:ionView} scope, such as `$ionicView.enter`, may be useful.
 *
 * By default, when navigating back in the history, the "forward" views are removed from the cache.
 * If you navigate forward to the same view again, it'll create a new DOM element and controller
 * instance. Basically, any forward views are reset each time. This can be configured using the
 * {@link ionic.provider:$ionicConfigProvider}:
 *
 * ```js
 * $ionicConfigProvider.views.forwardCache(true);
 * ```
 *
 * #### Disable cache globally
 *
 * The {@link ionic.provider:$ionicConfigProvider} can be used to set the maximum allowable views
 * which can be cached, but this can also be use to disable all caching by setting it to 0.
 *
 * ```js
 * $ionicConfigProvider.views.maxCache(0);
 * ```
 *
 * #### Disable cache within state provider
 *
 * ```js
 * $stateProvider.state('myState', {
 *    cache: false,
 *    url : '/myUrl',
 *    templateUrl : 'my-template.html'
 * })
 * ```
 *
 * #### Disable cache with an attribute
 *
 * ```html
 * <ion-view cache-view="false" view-title="My Title!">
 *   ...
 * </ion-view>
 * ```
 *
 *
 * ## AngularUI Router
 *
 * Please visit [AngularUI Router's docs](https://github.com/angular-ui/ui-router/wiki) for
 * more info. Below is a great video by the AngularUI Router team that may help to explain
 * how it all works:
 *
 * <iframe width="560" height="315" src="//www.youtube.com/embed/dqJRoh8MnBo"
 * frameborder="0" allowfullscreen></iframe>
 *
 * @param {string=} name A view name. The name should be unique amongst the other views in the
 * same state. You can have views of the same name that live in different states. For more
 * information, see ui-router's
 * [ui-view documentation](http://angular-ui.github.io/ui-router/site/#/api/ui.router.state.directive:ui-view).
 */
IonicModule
.directive('ionNavView', [
  '$state',
  '$ionicConfig',
function($state, $ionicConfig) {
  // IONIC's fork of Angular UI Router, v0.2.10
  // the navView handles registering views in the history and how to transition between them
  return {
    restrict: 'E',
    terminal: true,
    priority: 2000,
    transclude: true,
    controller: '$ionicNavView',
    compile: function(tElement, tAttrs, transclude) {

      // a nav view element is a container for numerous views
      tElement.addClass('view-container');
      ionic.DomUtil.cachedAttr(tElement, 'nav-view-transition', $ionicConfig.views.transition());

      return function($scope, $element, $attr, navViewCtrl) {
        var latestLocals;

        // Put in the compiled initial view
        transclude($scope, function(clone) {
          $element.append(clone);
        });

        var viewData = navViewCtrl.init();

        // listen for $stateChangeSuccess
        $scope.$on('$stateChangeSuccess', function() {
          updateView(false);
        });
        $scope.$on('$viewContentLoading', function() {
          updateView(false);
        });

        // initial load, ready go
        updateView(true);


        function updateView(firstTime) {
          // get the current local according to the $state
          var viewLocals = $state.$current && $state.$current.locals[viewData.name];

          // do not update THIS nav-view if its is not the container for the given state
          // if the viewLocals are the same as THIS latestLocals, then nothing to do
          if (!viewLocals || (!firstTime && viewLocals === latestLocals)) return;

          // update the latestLocals
          latestLocals = viewLocals;
          viewData.state = viewLocals.$$state;

          // register, update and transition to the new view
          navViewCtrl.register(viewLocals);
        }

      };
    }
  };
}]);

IonicModule

.config(['$provide', function($provide) {
  $provide.decorator('ngClickDirective', ['$delegate', function($delegate) {
    // drop the default ngClick directive
    $delegate.shift();
    return $delegate;
  }]);
}])

/**
 * @private
 */
.factory('$ionicNgClick', ['$parse', function($parse) {
  return function(scope, element, clickExpr) {
    var clickHandler = angular.isFunction(clickExpr) ?
      clickExpr :
      $parse(clickExpr);

    element.on('click', function(event) {
      scope.$apply(function() {
        clickHandler(scope, {$event: (event)});
      });
    });

    // Hack for iOS Safari's benefit. It goes searching for onclick handlers and is liable to click
    // something else nearby.
    element.onclick = function(event) { };
  };
}])

.directive('ngClick', ['$ionicNgClick', function($ionicNgClick) {
  return function(scope, element, attr) {
    $ionicNgClick(scope, element, attr.ngClick);
  };
}])

.directive('ionStopEvent', function() {
  return {
    restrict: 'A',
    link: function(scope, element, attr) {
      element.bind(attr.ionStopEvent, eventStopPropagation);
    }
  };
});
function eventStopPropagation(e) {
  e.stopPropagation();
}


/**
 * @ngdoc directive
 * @name ionPane
 * @module ionic
 * @restrict E
 *
 * @description A simple container that fits content, with no side effects.  Adds the 'pane' class to the element.
 */
IonicModule
.directive('ionPane', function() {
  return {
    restrict: 'E',
    link: function(scope, element, attr) {
      element.addClass('pane');
    }
  };
});

/*
 * We don't document the ionPopover directive, we instead document
 * the $ionicPopover service
 */
IonicModule
.directive('ionPopover', [function() {
  return {
    restrict: 'E',
    transclude: true,
    replace: true,
    controller: [function(){}],
    template: '<div class="popover-backdrop">' +
                '<div class="popover-wrapper" ng-transclude></div>' +
              '</div>'
  };
}]);

IonicModule
.directive('ionPopoverView', function() {
  return {
    restrict: 'E',
    compile: function(element) {
      element.append(jqLite('<div class="popover-arrow">'));
      element.addClass('popover');
    }
  };
});

/**
 * @ngdoc directive
 * @name ionRadio
 * @module ionic
 * @restrict E
 * @codepen saoBG
 * @description
 * The radio directive is no different than the HTML radio input, except it's styled differently.
 *
 * Radio behaves like any [AngularJS radio](http://docs.angularjs.org/api/ng/input/input[radio]).
 *
 * @usage
 * ```html
 * <ion-radio ng-model="choice" ng-value="'A'">Choose A</ion-radio>
 * <ion-radio ng-model="choice" ng-value="'B'">Choose B</ion-radio>
 * <ion-radio ng-model="choice" ng-value="'C'">Choose C</ion-radio>
 * ```
 *
 * @param {string=} name The name of the radio input.
 * @param {expression=} value The value of the radio input.
 * @param {boolean=} disabled The state of the radio input.
 * @param {string=} icon The icon to use when the radio input is selected.
 * @param {expression=} ng-value Angular equivalent of the value attribute.
 * @param {expression=} ng-model The angular model for the radio input.
 * @param {boolean=} ng-disabled Angular equivalent of the disabled attribute.
 * @param {expression=} ng-change Triggers given expression when radio input's model changes
 */
IonicModule
.directive('ionRadio', function() {
  return {
    restrict: 'E',
    replace: true,
    require: '?ngModel',
    transclude: true,
    template:
      '<label class="item item-radio">' +
        '<input type="radio" name="radio-group">' +
        '<div class="item-content disable-pointer-events" ng-transclude></div>' +
        '<i class="radio-icon disable-pointer-events icon ion-checkmark"></i>' +
      '</label>',

    compile: function(element, attr) {
      if (attr.icon) {
        element.children().eq(2).removeClass('ion-checkmark').addClass(attr.icon);
      }

      var input = element.find('input');
      forEach({
          'name': attr.name,
          'value': attr.value,
          'disabled': attr.disabled,
          'ng-value': attr.ngValue,
          'ng-model': attr.ngModel,
          'ng-disabled': attr.ngDisabled,
          'ng-change': attr.ngChange
      }, function(value, name) {
        if (isDefined(value)) {
            input.attr(name, value);
          }
      });

      return function(scope, element, attr) {
        scope.getValue = function() {
          return scope.ngValue || attr.value;
        };
      };
    }
  };
});


/**
 * @ngdoc directive
 * @name ionRefresher
 * @module ionic
 * @restrict E
 * @parent ionic.directive:ionContent, ionic.directive:ionScroll
 * @description
 * Allows you to add pull-to-refresh to a scrollView.
 *
 * Place it as the first child of your {@link ionic.directive:ionContent} or
 * {@link ionic.directive:ionScroll} element.
 *
 * When refreshing is complete, $broadcast the 'scroll.refreshComplete' event
 * from your controller.
 *
 * @usage
 *
 * ```html
 * <ion-content ng-controller="MyController">
 *   <ion-refresher
 *     pulling-text="Pull to refresh..."
 *     on-refresh="doRefresh()">
 *   </ion-refresher>
 *   <ion-list>
 *     <ion-item ng-repeat="item in items"></ion-item>
 *   </ion-list>
 * </ion-content>
 * ```
 * ```js
 * angular.module('testApp', ['ionic'])
 * .controller('MyController', function($scope, $http) {
 *   $scope.items = [1,2,3];
 *   $scope.doRefresh = function() {
 *     $http.get('/new-items')
 *      .success(function(newItems) {
 *        $scope.items = newItems;
 *      })
 *      .finally(function() {
 *        // Stop the ion-refresher from spinning
 *        $scope.$broadcast('scroll.refreshComplete');
 *      });
 *   };
 * });
 * ```
 *
 * @param {expression=} on-refresh Called when the user pulls down enough and lets go
 * of the refresher.
 * @param {expression=} on-pulling Called when the user starts to pull down
 * on the refresher.
 * @param {string=} pulling-icon The icon to display while the user is pulling down.
 * Default: 'ion-android-arrow-down'.
 * @param {string=} spinner The {@link ionic.directive:ionSpinner} icon to display
 * after user lets go of the refresher. The SVG {@link ionic.directive:ionSpinner}
 * is now the default, replacing rotating font icons. Set to `none` to disable both the
 * spinner and the icon.
 * @param {string=} refreshing-icon The font icon to display after user lets go of the
 * refresher. This is depreicated in favor of the SVG {@link ionic.directive:ionSpinner}.
 * @param {boolean=} disable-pulling-rotation Disables the rotation animation of the pulling
 * icon when it reaches its activated threshold. To be used with a custom `pulling-icon`.
 *
 */
IonicModule
.directive('ionRefresher', [function() {
  return {
    restrict: 'E',
    replace: true,
    require: ['?^$ionicScroll', 'ionRefresher'],
    controller: '$ionicRefresher',
    template:
    '<div class="scroll-refresher invisible" collection-repeat-ignore>' +
      '<div class="ionic-refresher-content" ' +
      'ng-class="{\'ionic-refresher-with-text\': pullingText || refreshingText}">' +
        '<div class="icon-pulling" ng-class="{\'pulling-rotation-disabled\':disablePullingRotation}">' +
          '<i class="icon {{pullingIcon}}"></i>' +
        '</div>' +
        '<div class="text-pulling" ng-bind-html="pullingText"></div>' +
        '<div class="icon-refreshing">' +
          '<ion-spinner ng-if="showSpinner" icon="{{spinner}}"></ion-spinner>' +
          '<i ng-if="showIcon" class="icon {{refreshingIcon}}"></i>' +
        '</div>' +
        '<div class="text-refreshing" ng-bind-html="refreshingText"></div>' +
      '</div>' +
    '</div>',
    link: function($scope, $element, $attrs, ctrls) {

      // JS Scrolling uses the scroll controller
      var scrollCtrl = ctrls[0],
          refresherCtrl = ctrls[1];

      if (!!scrollCtrl) {
        $element[0].classList.add('js-scrolling');

        scrollCtrl._setRefresher(
          $scope,
          $element[0],
          refresherCtrl.getRefresherDomMethods()
        );

        $scope.$on('scroll.refreshComplete', function() {
          $scope.$evalAsync(function() {
            scrollCtrl.scrollView.finishPullToRefresh();
          });
        });

      } else {
        // Kick off native scrolling
        refresherCtrl.init();
      }

    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionScroll
 * @module ionic
 * @delegate ionic.service:$ionicScrollDelegate
 * @codepen mwFuh
 * @restrict E
 *
 * @description
 * Creates a scrollable container for all content inside.
 *
 * @usage
 *
 * Basic usage:
 *
 * ```html
 * <ion-scroll zooming="true" direction="xy" style="width: 500px; height: 500px">
 *   <div style="width: 5000px; height: 5000px; background: url('https://upload.wikimedia.org/wikipedia/commons/a/ad/Europe_geological_map-en.jpg') repeat"></div>
 *  </ion-scroll>
 * ```
 *
 * Note that it's important to set the height of the scroll box as well as the height of the inner
 * content to enable scrolling. This makes it possible to have full control over scrollable areas.
 *
 * If you'd just like to have a center content scrolling area, use {@link ionic.directive:ionContent} instead.
 *
 * @param {string=} delegate-handle The handle used to identify this scrollView
 * with {@link ionic.service:$ionicScrollDelegate}.
 * @param {string=} direction Which way to scroll. 'x' or 'y' or 'xy'. Default 'y'.
 * @param {boolean=} locking Whether to lock scrolling in one direction at a time. Useful to set to false when zoomed in or scrolling in two directions. Default true.
 * @param {boolean=} paging Whether to scroll with paging.
 * @param {expression=} on-refresh Called on pull-to-refresh, triggered by an {@link ionic.directive:ionRefresher}.
 * @param {expression=} on-scroll Called whenever the user scrolls.
 * @param {boolean=} scrollbar-x Whether to show the horizontal scrollbar. Default true.
 * @param {boolean=} scrollbar-y Whether to show the vertical scrollbar. Default true.
 * @param {boolean=} zooming Whether to support pinch-to-zoom
 * @param {integer=} min-zoom The smallest zoom amount allowed (default is 0.5)
 * @param {integer=} max-zoom The largest zoom amount allowed (default is 3)
 * @param {boolean=} has-bouncing Whether to allow scrolling to bounce past the edges
 * of the content.  Defaults to true on iOS, false on Android.
 */
IonicModule
.directive('ionScroll', [
  '$timeout',
  '$controller',
  '$ionicBind',
function($timeout, $controller, $ionicBind) {
  return {
    restrict: 'E',
    scope: true,
    controller: function() {},
    compile: function(element, attr) {
      element.addClass('scroll-view ionic-scroll');

      //We cannot transclude here because it breaks element.data() inheritance on compile
      var innerElement = jqLite('<div class="scroll"></div>');
      innerElement.append(element.contents());
      element.append(innerElement);

      return { pre: prelink };
      function prelink($scope, $element, $attr) {
        var scrollView, scrollCtrl;

        $ionicBind($scope, $attr, {
          direction: '@',
          paging: '@',
          $onScroll: '&onScroll',
          scroll: '@',
          scrollbarX: '@',
          scrollbarY: '@',
          zooming: '@',
          minZoom: '@',
          maxZoom: '@'
        });
        $scope.direction = $scope.direction || 'y';

        if (isDefined($attr.padding)) {
          $scope.$watch($attr.padding, function(newVal) {
            innerElement.toggleClass('padding', !!newVal);
          });
        }
        if($scope.$eval($scope.paging) === true) {
          innerElement.addClass('scroll-paging');
        }

        if(!$scope.direction) { $scope.direction = 'y'; }
        var isPaging = $scope.$eval($scope.paging) === true;

        var scrollViewOptions= {
          el: $element[0],
          delegateHandle: $attr.delegateHandle,
          locking: ($attr.locking || 'true') === 'true',
          bouncing: $scope.$eval($attr.hasBouncing),
          paging: isPaging,
          scrollbarX: $scope.$eval($scope.scrollbarX) !== false,
          scrollbarY: $scope.$eval($scope.scrollbarY) !== false,
          scrollingX: $scope.direction.indexOf('x') >= 0,
          scrollingY: $scope.direction.indexOf('y') >= 0,
          zooming: $scope.$eval($scope.zooming) === true,
          maxZoom: $scope.$eval($scope.maxZoom) || 3,
          minZoom: $scope.$eval($scope.minZoom) || 0.5,
          preventDefault: true
        };
        if (isPaging) {
          scrollViewOptions.speedMultiplier = 0.8;
          scrollViewOptions.bouncing = false;
        }

        scrollCtrl = $controller('$ionicScroll', {
          $scope: $scope,
          scrollViewOptions: scrollViewOptions
        });
        scrollView = $scope.$parent.scrollView = scrollCtrl.scrollView;
      }
    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionSideMenu
 * @module ionic
 * @restrict E
 * @parent ionic.directive:ionSideMenus
 *
 * @description
 * A container for a side menu, sibling to an {@link ionic.directive:ionSideMenuContent} directive.
 *
 * @usage
 * ```html
 * <ion-side-menu
 *   side="left"
 *   width="myWidthValue + 20"
 *   is-enabled="shouldLeftSideMenuBeEnabled()">
 * </ion-side-menu>
 * ```
 * For a complete side menu example, see the
 * {@link ionic.directive:ionSideMenus} documentation.
 *
 * @param {string} side Which side the side menu is currently on.  Allowed values: 'left' or 'right'.
 * @param {boolean=} is-enabled Whether this side menu is enabled.
 * @param {number=} width How many pixels wide the side menu should be.  Defaults to 275.
 */
IonicModule
.directive('ionSideMenu', function() {
  return {
    restrict: 'E',
    require: '^ionSideMenus',
    scope: true,
    compile: function(element, attr) {
      angular.isUndefined(attr.isEnabled) && attr.$set('isEnabled', 'true');
      angular.isUndefined(attr.width) && attr.$set('width', '275');

      element.addClass('menu menu-' + attr.side);

      return function($scope, $element, $attr, sideMenuCtrl) {
        $scope.side = $attr.side || 'left';

        var sideMenu = sideMenuCtrl[$scope.side] = new ionic.views.SideMenu({
          width: attr.width,
          el: $element[0],
          isEnabled: true
        });

        $scope.$watch($attr.width, function(val) {
          var numberVal = +val;
          if (numberVal && numberVal == val) {
            sideMenu.setWidth(+val);
          }
        });
        $scope.$watch($attr.isEnabled, function(val) {
          sideMenu.setIsEnabled(!!val);
        });
      };
    }
  };
});


/**
 * @ngdoc directive
 * @name ionSideMenuContent
 * @module ionic
 * @restrict E
 * @parent ionic.directive:ionSideMenus
 *
 * @description
 * A container for the main visible content, sibling to one or more
 * {@link ionic.directive:ionSideMenu} directives.
 *
 * @usage
 * ```html
 * <ion-side-menu-content
 *   edge-drag-threshold="true"
 *   drag-content="true">
 * </ion-side-menu-content>
 * ```
 * For a complete side menu example, see the
 * {@link ionic.directive:ionSideMenus} documentation.
 *
 * @param {boolean=} drag-content Whether the content can be dragged. Default true.
 * @param {boolean|number=} edge-drag-threshold Whether the content drag can only start if it is below a certain threshold distance from the edge of the screen.  Default false. Accepts three types of values:
   *  - If a non-zero number is given, that many pixels is used as the maximum allowed distance from the edge that starts dragging the side menu.
   *  - If true is given, the default number of pixels (25) is used as the maximum allowed distance.
   *  - If false or 0 is given, the edge drag threshold is disabled, and dragging from anywhere on the content is allowed.
 *
 */
IonicModule
.directive('ionSideMenuContent', [
  '$timeout',
  '$ionicGesture',
  '$window',
function($timeout, $ionicGesture, $window) {

  return {
    restrict: 'EA', //DEPRECATED 'A'
    require: '^ionSideMenus',
    scope: true,
    compile: function(element, attr) {
      element.addClass('menu-content pane');

      return { pre: prelink };
      function prelink($scope, $element, $attr, sideMenuCtrl) {
        var startCoord = null;
        var primaryScrollAxis = null;

        if (isDefined(attr.dragContent)) {
          $scope.$watch(attr.dragContent, function(value) {
            sideMenuCtrl.canDragContent(value);
          });
        } else {
          sideMenuCtrl.canDragContent(true);
        }

        if (isDefined(attr.edgeDragThreshold)) {
          $scope.$watch(attr.edgeDragThreshold, function(value) {
            sideMenuCtrl.edgeDragThreshold(value);
          });
        }

        // Listen for taps on the content to close the menu
        function onContentTap(gestureEvt) {
          if (sideMenuCtrl.getOpenAmount() !== 0) {
            sideMenuCtrl.close();
            gestureEvt.gesture.srcEvent.preventDefault();
            startCoord = null;
            primaryScrollAxis = null;
          } else if (!startCoord) {
            startCoord = ionic.tap.pointerCoord(gestureEvt.gesture.srcEvent);
          }
        }

        function onDragX(e) {
          if (!sideMenuCtrl.isDraggableTarget(e)) return;

          if (getPrimaryScrollAxis(e) == 'x') {
            sideMenuCtrl._handleDrag(e);
            e.gesture.srcEvent.preventDefault();
          }
        }

        function onDragY(e) {
          if (getPrimaryScrollAxis(e) == 'x') {
            e.gesture.srcEvent.preventDefault();
          }
        }

        function onDragRelease(e) {
          sideMenuCtrl._endDrag(e);
          startCoord = null;
          primaryScrollAxis = null;
        }

        function getPrimaryScrollAxis(gestureEvt) {
          // gets whether the user is primarily scrolling on the X or Y
          // If a majority of the drag has been on the Y since the start of
          // the drag, but the X has moved a little bit, it's still a Y drag

          if (primaryScrollAxis) {
            // we already figured out which way they're scrolling
            return primaryScrollAxis;
          }

          if (gestureEvt && gestureEvt.gesture) {

            if (!startCoord) {
              // get the starting point
              startCoord = ionic.tap.pointerCoord(gestureEvt.gesture.srcEvent);

            } else {
              // we already have a starting point, figure out which direction they're going
              var endCoord = ionic.tap.pointerCoord(gestureEvt.gesture.srcEvent);

              var xDistance = Math.abs(endCoord.x - startCoord.x);
              var yDistance = Math.abs(endCoord.y - startCoord.y);

              var scrollAxis = (xDistance < yDistance ? 'y' : 'x');

              if (Math.max(xDistance, yDistance) > 30) {
                // ok, we pretty much know which way they're going
                // let's lock it in
                primaryScrollAxis = scrollAxis;
              }

              return scrollAxis;
            }
          }
          return 'y';
        }

        var content = {
          element: element[0],
          onDrag: function(e) {},
          endDrag: function(e) {},
          getTranslateX: function() {
            return $scope.sideMenuContentTranslateX || 0;
          },
          setTranslateX: ionic.animationFrameThrottle(function(amount) {
            var xTransform = content.offsetX + amount;
            $element[0].style[ionic.CSS.TRANSFORM] = 'translate3d(' + xTransform + 'px,0,0)';
            $timeout(function() {
              $scope.sideMenuContentTranslateX = amount;
            });
          }),
          setMarginLeft: ionic.animationFrameThrottle(function(amount) {
            if (amount) {
              amount = parseInt(amount, 10);
              $element[0].style[ionic.CSS.TRANSFORM] = 'translate3d(' + amount + 'px,0,0)';
              $element[0].style.width = ($window.innerWidth - amount) + 'px';
              content.offsetX = amount;
            } else {
              $element[0].style[ionic.CSS.TRANSFORM] = 'translate3d(0,0,0)';
              $element[0].style.width = '';
              content.offsetX = 0;
            }
          }),
          setMarginRight: ionic.animationFrameThrottle(function(amount) {
            if (amount) {
              amount = parseInt(amount, 10);
              $element[0].style.width = ($window.innerWidth - amount) + 'px';
              content.offsetX = amount;
            } else {
              $element[0].style.width = '';
              content.offsetX = 0;
            }
            // reset incase left gets grabby
            $element[0].style[ionic.CSS.TRANSFORM] = 'translate3d(0,0,0)';
          }),
          enableAnimation: function() {
            $scope.animationEnabled = true;
            $element[0].classList.add('menu-animated');
          },
          disableAnimation: function() {
            $scope.animationEnabled = false;
            $element[0].classList.remove('menu-animated');
          },
          offsetX: 0
        };

        sideMenuCtrl.setContent(content);

        // add gesture handlers
        var gestureOpts = { stop_browser_behavior: false };
        var contentTapGesture = $ionicGesture.on('tap', onContentTap, $element, gestureOpts);
        var dragRightGesture = $ionicGesture.on('dragright', onDragX, $element, gestureOpts);
        var dragLeftGesture = $ionicGesture.on('dragleft', onDragX, $element, gestureOpts);
        var dragUpGesture = $ionicGesture.on('dragup', onDragY, $element, gestureOpts);
        var dragDownGesture = $ionicGesture.on('dragdown', onDragY, $element, gestureOpts);
        var releaseGesture = $ionicGesture.on('release', onDragRelease, $element, gestureOpts);

        // Cleanup
        $scope.$on('$destroy', function() {
          if (content) {
            content.element = null;
            content = null;
          }
          $ionicGesture.off(dragLeftGesture, 'dragleft', onDragX);
          $ionicGesture.off(dragRightGesture, 'dragright', onDragX);
          $ionicGesture.off(dragUpGesture, 'dragup', onDragY);
          $ionicGesture.off(dragDownGesture, 'dragdown', onDragY);
          $ionicGesture.off(releaseGesture, 'release', onDragRelease);
          $ionicGesture.off(contentTapGesture, 'tap', onContentTap);
        });
      }
    }
  };
}]);

IonicModule

/**
 * @ngdoc directive
 * @name ionSideMenus
 * @module ionic
 * @delegate ionic.service:$ionicSideMenuDelegate
 * @restrict E
 *
 * @description
 * A container element for side menu(s) and the main content. Allows the left and/or right side menu
 * to be toggled by dragging the main content area side to side.
 *
 * To automatically close an opened menu, you can add the {@link ionic.directive:menuClose} attribute
 * directive. The `menu-close` attribute is usually added to links and buttons within
 * `ion-side-menu-content`, so that when the element is clicked, the opened side menu will
 * automatically close.
 *
 * "Burger Icon" toggles can be added to the header with the {@link ionic.directive:menuToggle}
 * attribute directive. Clicking the toggle will open and close the side menu like the `menu-close`
 * directive. The side menu will automatically hide on child pages, but can be overridden with the
 * enable-menu-with-back-views attribute mentioned below.
 *
 * By default, side menus are hidden underneath their side menu content and can be opened by swiping
 * the content left or right or by toggling a button to show the side menu. Additionally, by adding the
 * {@link ionic.directive:exposeAsideWhen} attribute directive to an
 * {@link ionic.directive:ionSideMenu} element directive, a side menu can be given instructions about
 * "when" the menu should be exposed (always viewable).
 *
 * ![Side Menu](http://ionicframework.com.s3.amazonaws.com/docs/controllers/sidemenu.gif)
 *
 * For more information on side menus, check out:
 *
 * - {@link ionic.directive:ionSideMenuContent}
 * - {@link ionic.directive:ionSideMenu}
 * - {@link ionic.directive:menuToggle}
 * - {@link ionic.directive:menuClose}
 * - {@link ionic.directive:exposeAsideWhen}
 *
 * @usage
 * To use side menus, add an `<ion-side-menus>` parent element,
 * an `<ion-side-menu-content>` for the center content,
 * and one or more `<ion-side-menu>` directives.
 *
 * ```html
 * <ion-side-menus>
 *   <!-- Center content -->
 *   <ion-side-menu-content ng-controller="ContentController">
 *   </ion-side-menu-content>
 *
 *   <!-- Left menu -->
 *   <ion-side-menu side="left">
 *   </ion-side-menu>
 *
 *   <!-- Right menu -->
 *   <ion-side-menu side="right">
 *   </ion-side-menu>
 * </ion-side-menus>
 * ```
 * ```js
 * function ContentController($scope, $ionicSideMenuDelegate) {
 *   $scope.toggleLeft = function() {
 *     $ionicSideMenuDelegate.toggleLeft();
 *   };
 * }
 * ```
 *
 * @param {bool=} enable-menu-with-back-views Determines whether the side menu is enabled when the
 * back button is showing. When set to `false`, any {@link ionic.directive:menuToggle} will be hidden,
 * and the user cannot swipe to open the menu. When going back to the root page of the side menu (the
 * page without a back button visible), then any menuToggle buttons will show again, and menus will be
 * enabled again.
 * @param {string=} delegate-handle The handle used to identify this side menu
 * with {@link ionic.service:$ionicSideMenuDelegate}.
 *
 */
.directive('ionSideMenus', ['$ionicBody', function($ionicBody) {
  return {
    restrict: 'ECA',
    controller: '$ionicSideMenus',
    compile: function(element, attr) {
      attr.$set('class', (attr['class'] || '') + ' view');

      return { pre: prelink };
      function prelink($scope, $element, $attrs, ctrl) {

        ctrl.enableMenuWithBackViews($scope.$eval($attrs.enableMenuWithBackViews));

        $scope.$on('$ionicExposeAside', function(evt, isAsideExposed) {
          if (!$scope.$exposeAside) $scope.$exposeAside = {};
          $scope.$exposeAside.active = isAsideExposed;
          $ionicBody.enableClass(isAsideExposed, 'aside-open');
        });

        $scope.$on('$ionicView.beforeEnter', function(ev, d) {
          if (d.historyId) {
            $scope.$activeHistoryId = d.historyId;
          }
        });

        $scope.$on('$destroy', function() {
          $ionicBody.removeClass('menu-open', 'aside-open');
        });

      }
    }
  };
}]);


/**
 * @ngdoc directive
 * @name ionSlideBox
 * @module ionic
 * @delegate ionic.service:$ionicSlideBoxDelegate
 * @restrict E
 * @description
 * The Slide Box is a multi-page container where each page can be swiped or dragged between:
 *
 * ![SlideBox](http://ionicframework.com.s3.amazonaws.com/docs/controllers/slideBox.gif)
 *
 * @usage
 * ```html
 * <ion-slide-box on-slide-changed="slideHasChanged($index)">
 *   <ion-slide>
 *     <div class="box blue"><h1>BLUE</h1></div>
 *   </ion-slide>
 *   <ion-slide>
 *     <div class="box yellow"><h1>YELLOW</h1></div>
 *   </ion-slide>
 *   <ion-slide>
 *     <div class="box pink"><h1>PINK</h1></div>
 *   </ion-slide>
 * </ion-slide-box>
 * ```
 *
 * @param {string=} delegate-handle The handle used to identify this slideBox
 * with {@link ionic.service:$ionicSlideBoxDelegate}.
 * @param {boolean=} does-continue Whether the slide box should loop.
 * @param {boolean=} auto-play Whether the slide box should automatically slide. Default true if does-continue is true.
 * @param {number=} slide-interval How many milliseconds to wait to change slides (if does-continue is true). Defaults to 4000.
 * @param {boolean=} show-pager Whether a pager should be shown for this slide box. Accepts expressions via `show-pager="{{shouldShow()}}"`.
 * @param {expression=} pager-click Expression to call when a pager is clicked (if show-pager is true). Is passed the 'index' variable.
 * @param {expression=} on-slide-changed Expression called whenever the slide is changed.  Is passed an '$index' variable.
 * @param {expression=} active-slide Model to bind the current slide to.
 */
IonicModule
.directive('ionSlideBox', [
  '$timeout',
  '$compile',
  '$ionicSlideBoxDelegate',
  '$ionicHistory',
function($timeout, $compile, $ionicSlideBoxDelegate, $ionicHistory) {
  return {
    restrict: 'E',
    replace: true,
    transclude: true,
    scope: {
      autoPlay: '=',
      doesContinue: '@',
      slideInterval: '@',
      showPager: '@',
      pagerClick: '&',
      disableScroll: '@',
      onSlideChanged: '&',
      activeSlide: '=?'
    },
    controller: ['$scope', '$element', '$attrs', function($scope, $element, $attrs) {
      var _this = this;

      var continuous = $scope.$eval($scope.doesContinue) === true;
      var shouldAutoPlay = isDefined($attrs.autoPlay) ? !!$scope.autoPlay : false;
      var slideInterval = shouldAutoPlay ? $scope.$eval($scope.slideInterval) || 4000 : 0;

      var slider = new ionic.views.Slider({
        el: $element[0],
        auto: slideInterval,
        continuous: continuous,
        startSlide: $scope.activeSlide,
        slidesChanged: function() {
          $scope.currentSlide = slider.currentIndex();

          // Try to trigger a digest
          $timeout(function() {});
        },
        callback: function(slideIndex) {
          $scope.currentSlide = slideIndex;
          $scope.onSlideChanged({ index: $scope.currentSlide, $index: $scope.currentSlide});
          $scope.$parent.$broadcast('slideBox.slideChanged', slideIndex);
          $scope.activeSlide = slideIndex;
          // Try to trigger a digest
          $timeout(function() {});
        }
      });

      slider.enableSlide($scope.$eval($attrs.disableScroll) !== true);

      $scope.$watch('activeSlide', function(nv) {
        if (isDefined(nv)) {
          slider.slide(nv);
        }
      });

      $scope.$on('slideBox.nextSlide', function() {
        slider.next();
      });

      $scope.$on('slideBox.prevSlide', function() {
        slider.prev();
      });

      $scope.$on('slideBox.setSlide', function(e, index) {
        slider.slide(index);
      });

      //Exposed for testing
      this.__slider = slider;

      var deregisterInstance = $ionicSlideBoxDelegate._registerInstance(
        slider, $attrs.delegateHandle, function() {
          return $ionicHistory.isActiveScope($scope);
        }
      );
      $scope.$on('$destroy', deregisterInstance);

      this.slidesCount = function() {
        return slider.slidesCount();
      };

      this.onPagerClick = function(index) {
        void 0;
        $scope.pagerClick({index: index});
      };

      $timeout(function() {
        slider.load();
      });
    }],
    template: '<div class="slider">' +
      '<div class="slider-slides" ng-transclude>' +
      '</div>' +
    '</div>',

    link: function($scope, $element, $attr, slideBoxCtrl) {
      $attr.$observe('showPager', function(show) {
        show = $scope.$eval(show);
        getPager().toggleClass('hide', !show);
      });

      var pager;
      function getPager() {
        if (!pager) {
          var childScope = $scope.$new();
          pager = jqLite('<ion-pager></ion-pager>');
          $element.append(pager);
          pager = $compile(pager)(childScope);
        }
        return pager;
      }
    }
  };
}])
.directive('ionSlide', function() {
  return {
    restrict: 'E',
    require: '^ionSlideBox',
    compile: function(element, attr) {
      element.addClass('slider-slide');
      return function($scope, $element, $attr) {
      };
    }
  };
})

.directive('ionPager', function() {
  return {
    restrict: 'E',
    replace: true,
    require: '^ionSlideBox',
    template: '<div class="slider-pager"><span class="slider-pager-page" ng-repeat="slide in numSlides() track by $index" ng-class="{active: $index == currentSlide}" ng-click="pagerClick($index)"><i class="icon ion-record"></i></span></div>',
    link: function($scope, $element, $attr, slideBox) {
      var selectPage = function(index) {
        var children = $element[0].children;
        var length = children.length;
        for (var i = 0; i < length; i++) {
          if (i == index) {
            children[i].classList.add('active');
          } else {
            children[i].classList.remove('active');
          }
        }
      };

      $scope.pagerClick = function(index) {
        slideBox.onPagerClick(index);
      };

      $scope.numSlides = function() {
        return new Array(slideBox.slidesCount());
      };

      $scope.$watch('currentSlide', function(v) {
        selectPage(v);
      });
    }
  };

});

/**
* @ngdoc directive
* @name ionSpinner
* @module ionic
* @restrict E
 *
 * @description
 * The `ionSpinner` directive provides a variety of animated spinners.
 * Spinners enables you to give your users feedback that the app is
 * processing/thinking/waiting/chillin' out, or whatever you'd like it to indicate.
 * By default, the {@link ionic.directive:ionRefresher} feature uses this spinner, rather
 * than rotating font icons (previously included in [ionicons](http://ionicons.com/)).
 * While font icons are great for simple or stationary graphics, they're not suited to
 * provide great animations, which is why Ionic uses SVG instead.
 *
 * Ionic offers ten spinners out of the box, and by default, it will use the appropriate spinner
 * for the platform on which it's running. Under the hood, the `ionSpinner` directive dynamically
 * builds the required SVG element, which allows Ionic to provide all ten of the animated SVGs
 * within 3KB.
 *
 * <style>
 * .spinner-table {
 *   max-width: 280px;
 * }
 * .spinner-table tbody > tr > th, .spinner-table tbody > tr > td {
 *   vertical-align: middle;
 *   width: 42px;
 *   height: 42px;
 * }
 * .spinner {
 *   stroke: #444;
 *   fill: #444; }
 *   .spinner svg {
 *     width: 28px;
 *     height: 28px; }
 *   .spinner.spinner-inverse {
 *     stroke: #fff;
 *     fill: #fff; }
 *
 * .spinner-android {
 *   stroke: #4b8bf4; }
 *
 * .spinner-ios, .spinner-ios-small {
 *   stroke: #69717d; }
 *
 * .spinner-spiral .stop1 {
 *   stop-color: #fff;
 *   stop-opacity: 0; }
 * .spinner-spiral.spinner-inverse .stop1 {
 *   stop-color: #000; }
 * .spinner-spiral.spinner-inverse .stop2 {
 *   stop-color: #fff; }
 * </style>
 *
 * <script src="http://code.ionicframework.com/nightly/js/ionic.bundle.min.js"></script>
 * <table class="table spinner-table" ng-app="ionic">
 *  <tr>
 *    <th>
 *      <code>android</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="android"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>ios</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="ios"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>ios-small</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="ios-small"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>bubbles</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="bubbles"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>circles</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="circles"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>crescent</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="crescent"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>dots</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="dots"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>lines</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="lines"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>ripple</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="ripple"></ion-spinner>
 *    </td>
 *  </tr>
 *  <tr>
 *    <th>
 *      <code>spiral</code>
 *    </th>
 *    <td>
 *      <ion-spinner icon="spiral"></ion-spinner>
 *    </td>
 *  </tr>
 * </table>
 *
 * Each spinner uses SVG with SMIL animations, however, the Android spinner also uses JavaScript
 * so it also works on Android 4.0-4.3. Additionally, each spinner can be styled with CSS,
 * and scaled to any size.
 *
 *
 * @usage
 * The following code would use the default spinner for the platform it's running from. If it's neither
 * iOS or Android, it'll default to use `ios`.
 *
 * ```html
 * <ion-spinner></ion-spinner>
 * ```
 *
 * By setting the `icon` attribute, you can specify which spinner to use, no matter what
 * the platform is.
 *
 * ```html
 * <ion-spinner icon="spiral"></ion-spinner>
 * ```
 *
 * ## Spinner Colors
 * Like with most of Ionic's other components, spinners can also be styled using
 * Ionic's standard color naming convention. For example:
 *
 * ```html
 * <ion-spinner class="spinner-energized"></ion-spinner>
 * ```
 *
 *
 * ## Styling SVG with CSS
 * One cool thing about SVG is its ability to be styled with CSS! Some of the properties
 * have different names, for example, SVG uses the term `stroke` instead of `border`, and
 * `fill` instead of `background-color`.
 *
 * ```css
 * .spinner svg {
 *   width: 28px;
 *   height: 28px;
 *   stroke: #444;
 *   fill: #444;
 * }
 * ```
 *
*/
IonicModule
.directive('ionSpinner', function() {
  return {
    restrict: 'E',
    controller: '$ionicSpinner',
    link: function($scope, $element, $attrs, ctrl) {
      var spinnerName = ctrl.init();
      $element.addClass('spinner spinner-' + spinnerName);
    }
  };
});

/**
 * @ngdoc directive
 * @name ionTab
 * @module ionic
 * @restrict E
 * @parent ionic.directive:ionTabs
 *
 * @description
 * Contains a tab's content.  The content only exists while the given tab is selected.
 *
 * Each ionTab has its own view history.
 *
 * @usage
 * ```html
 * <ion-tab
 *   title="Tab!"
 *   icon="my-icon"
 *   href="#/tab/tab-link"
 *   on-select="onTabSelected()"
 *   on-deselect="onTabDeselected()">
 * </ion-tab>
 * ```
 * For a complete, working tab bar example, see the {@link ionic.directive:ionTabs} documentation.
 *
 * @param {string} title The title of the tab.
 * @param {string=} href The link that this tab will navigate to when tapped.
 * @param {string=} icon The icon of the tab. If given, this will become the default for icon-on and icon-off.
 * @param {string=} icon-on The icon of the tab while it is selected.
 * @param {string=} icon-off The icon of the tab while it is not selected.
 * @param {expression=} badge The badge to put on this tab (usually a number).
 * @param {expression=} badge-style The style of badge to put on this tab (eg: badge-positive).
 * @param {expression=} on-select Called when this tab is selected.
 * @param {expression=} on-deselect Called when this tab is deselected.
 * @param {expression=} ng-click By default, the tab will be selected on click. If ngClick is set, it will not.  You can explicitly switch tabs using {@link ionic.service:$ionicTabsDelegate#select $ionicTabsDelegate.select()}.
 * @param {expression=} hidden Whether the tab is to be hidden or not.
 * @param {expression=} disabled Whether the tab is to be disabled or not.
 */
IonicModule
.directive('ionTab', [
  '$compile',
  '$ionicConfig',
  '$ionicBind',
  '$ionicViewSwitcher',
function($compile, $ionicConfig, $ionicBind, $ionicViewSwitcher) {

  //Returns ' key="value"' if value exists
  function attrStr(k, v) {
    return isDefined(v) ? ' ' + k + '="' + v + '"' : '';
  }
  return {
    restrict: 'E',
    require: ['^ionTabs', 'ionTab'],
    controller: '$ionicTab',
    scope: true,
    compile: function(element, attr) {

      //We create the tabNavTemplate in the compile phase so that the
      //attributes we pass down won't be interpolated yet - we want
      //to pass down the 'raw' versions of the attributes
      var tabNavTemplate = '<ion-tab-nav' +
        attrStr('ng-click', attr.ngClick) +
        attrStr('title', attr.title) +
        attrStr('icon', attr.icon) +
        attrStr('icon-on', attr.iconOn) +
        attrStr('icon-off', attr.iconOff) +
        attrStr('badge', attr.badge) +
        attrStr('badge-style', attr.badgeStyle) +
        attrStr('hidden', attr.hidden) +
        attrStr('disabled', attr.disabled) +
        attrStr('class', attr['class']) +
        '></ion-tab-nav>';

      //Remove the contents of the element so we can compile them later, if tab is selected
      var tabContentEle = document.createElement('div');
      for (var x = 0; x < element[0].children.length; x++) {
        tabContentEle.appendChild(element[0].children[x].cloneNode(true));
      }
      var childElementCount = tabContentEle.childElementCount;
      element.empty();

      var navViewName, isNavView;
      if (childElementCount) {
        if (tabContentEle.children[0].tagName === 'ION-NAV-VIEW') {
          // get the name if it's a nav-view
          navViewName = tabContentEle.children[0].getAttribute('name');
          tabContentEle.children[0].classList.add('view-container');
          isNavView = true;
        }
        if (childElementCount === 1) {
          // make the 1 child element the primary tab content container
          tabContentEle = tabContentEle.children[0];
        }
        if (!isNavView) tabContentEle.classList.add('pane');
        tabContentEle.classList.add('tab-content');
      }

      return function link($scope, $element, $attr, ctrls) {
        var childScope;
        var childElement;
        var tabsCtrl = ctrls[0];
        var tabCtrl = ctrls[1];
        var isTabContentAttached = false;
        $scope.$tabSelected = false;

        $ionicBind($scope, $attr, {
          onSelect: '&',
          onDeselect: '&',
          title: '@',
          uiSref: '@',
          href: '@'
        });

        tabsCtrl.add($scope);
        $scope.$on('$destroy', function() {
          if (!$scope.$tabsDestroy) {
            // if the containing ionTabs directive is being destroyed
            // then don't bother going through the controllers remove
            // method, since remove will reset the active tab as each tab
            // is being destroyed, causing unnecessary view loads and transitions
            tabsCtrl.remove($scope);
          }
          tabNavElement.isolateScope().$destroy();
          tabNavElement.remove();
          tabNavElement = tabContentEle = childElement = null;
        });

        //Remove title attribute so browser-tooltip does not apear
        $element[0].removeAttribute('title');

        if (navViewName) {
          tabCtrl.navViewName = $scope.navViewName = navViewName;
        }
        $scope.$on('$stateChangeSuccess', selectIfMatchesState);
        selectIfMatchesState();
        function selectIfMatchesState() {
          if (tabCtrl.tabMatchesState()) {
            tabsCtrl.select($scope, false);
          }
        }

        var tabNavElement = jqLite(tabNavTemplate);
        tabNavElement.data('$ionTabsController', tabsCtrl);
        tabNavElement.data('$ionTabController', tabCtrl);
        tabsCtrl.$tabsElement.append($compile(tabNavElement)($scope));


        function tabSelected(isSelected) {
          if (isSelected && childElementCount) {
            // this tab is being selected

            // check if the tab is already in the DOM
            // only do this if the tab has child elements
            if (!isTabContentAttached) {
              // tab should be selected and is NOT in the DOM
              // create a new scope and append it
              childScope = $scope.$new();
              childElement = jqLite(tabContentEle);
              $ionicViewSwitcher.viewEleIsActive(childElement, true);
              tabsCtrl.$element.append(childElement);
              $compile(childElement)(childScope);
              isTabContentAttached = true;
            }

            // remove the hide class so the tabs content shows up
            $ionicViewSwitcher.viewEleIsActive(childElement, true);

          } else if (isTabContentAttached && childElement) {
            // this tab should NOT be selected, and it is already in the DOM

            if ($ionicConfig.views.maxCache() > 0) {
              // keep the tabs in the DOM, only css hide it
              $ionicViewSwitcher.viewEleIsActive(childElement, false);

            } else {
              // do not keep tabs in the DOM
              destroyTab();
            }

          }
        }

        function destroyTab() {
          childScope && childScope.$destroy();
          isTabContentAttached && childElement && childElement.remove();
          tabContentEle.innerHTML = '';
          isTabContentAttached = childScope = childElement = null;
        }

        $scope.$watch('$tabSelected', tabSelected);

        $scope.$on('$ionicView.afterEnter', function() {
          $ionicViewSwitcher.viewEleIsActive(childElement, $scope.$tabSelected);
        });

        $scope.$on('$ionicView.clearCache', function() {
          if (!$scope.$tabSelected) {
            destroyTab();
          }
        });

      };
    }
  };
}]);

IonicModule
.directive('ionTabNav', [function() {
  return {
    restrict: 'E',
    replace: true,
    require: ['^ionTabs', '^ionTab'],
    template:
    '<a ng-class="{\'tab-item-active\': isTabActive(), \'has-badge\':badge, \'tab-hidden\':isHidden()}" ' +
      ' ng-disabled="disabled()" class="tab-item">' +
      '<span class="badge {{badgeStyle}}" ng-if="badge">{{badge}}</span>' +
      '<i class="icon {{getIconOn()}}" ng-if="getIconOn() && isTabActive()"></i>' +
      '<i class="icon {{getIconOff()}}" ng-if="getIconOff() && !isTabActive()"></i>' +
      '<span class="tab-title" ng-bind-html="title"></span>' +
    '</a>',
    scope: {
      title: '@',
      icon: '@',
      iconOn: '@',
      iconOff: '@',
      badge: '=',
      hidden: '@',
      disabled: '&',
      badgeStyle: '@',
      'class': '@'
    },
    compile: function(element, attr, transclude) {
      return function link($scope, $element, $attrs, ctrls) {
        var tabsCtrl = ctrls[0],
          tabCtrl = ctrls[1];

        //Remove title attribute so browser-tooltip does not apear
        $element[0].removeAttribute('title');

        $scope.selectTab = function(e) {
          e.preventDefault();
          tabsCtrl.select(tabCtrl.$scope, true);
        };
        if (!$attrs.ngClick) {
          $element.on('click', function(event) {
            $scope.$apply(function() {
              $scope.selectTab(event);
            });
          });
        }

        $scope.isHidden = function() {
          if ($attrs.hidden === 'true' || $attrs.hidden === true) return true;
          return false;
        };

        $scope.getIconOn = function() {
          return $scope.iconOn || $scope.icon;
        };
        $scope.getIconOff = function() {
          return $scope.iconOff || $scope.icon;
        };

        $scope.isTabActive = function() {
          return tabsCtrl.selectedTab() === tabCtrl.$scope;
        };
      };
    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionTabs
 * @module ionic
 * @delegate ionic.service:$ionicTabsDelegate
 * @restrict E
 * @codepen odqCz
 *
 * @description
 * Powers a multi-tabbed interface with a Tab Bar and a set of "pages" that can be tabbed
 * through.
 *
 * Assign any [tabs class](/docs/components#tabs) to the element to define
 * its look and feel.
 *
 * For iOS, tabs will appear at the bottom of the screen. For Android, tabs will be at the top
 * of the screen, below the nav-bar. This follows each OS's design specification, but can be
 * configured with the [$ionicConfigProvider](docs/api/provider/$ionicConfigProvider/).
 *
 * See the {@link ionic.directive:ionTab} directive's documentation for more details on
 * individual tabs.
 *
 * Note: do not place ion-tabs inside of an ion-content element; it has been known to cause a
 * certain CSS bug.
 *
 * @usage
 * ```html
 * <ion-tabs class="tabs-positive tabs-icon-only">
 *
 *   <ion-tab title="Home" icon-on="ion-ios-filing" icon-off="ion-ios-filing-outline">
 *     <!-- Tab 1 content -->
 *   </ion-tab>
 *
 *   <ion-tab title="About" icon-on="ion-ios-clock" icon-off="ion-ios-clock-outline">
 *     <!-- Tab 2 content -->
 *   </ion-tab>
 *
 *   <ion-tab title="Settings" icon-on="ion-ios-gear" icon-off="ion-ios-gear-outline">
 *     <!-- Tab 3 content -->
 *   </ion-tab>
 *
 * </ion-tabs>
 * ```
 *
 * @param {string=} delegate-handle The handle used to identify these tabs
 * with {@link ionic.service:$ionicTabsDelegate}.
 */

IonicModule
.directive('ionTabs', [
  '$ionicTabsDelegate',
  '$ionicConfig',
  '$ionicHistory',
function($ionicTabsDelegate, $ionicConfig, $ionicHistory) {
  return {
    restrict: 'E',
    scope: true,
    controller: '$ionicTabs',
    compile: function(tElement) {
      //We cannot use regular transclude here because it breaks element.data()
      //inheritance on compile
      var innerElement = jqLite('<div class="tab-nav tabs">');
      innerElement.append(tElement.contents());

      tElement.append(innerElement)
              .addClass('tabs-' + $ionicConfig.tabs.position() + ' tabs-' + $ionicConfig.tabs.style());

      return { pre: prelink, post: postLink };
      function prelink($scope, $element, $attr, tabsCtrl) {
        var deregisterInstance = $ionicTabsDelegate._registerInstance(
          tabsCtrl, $attr.delegateHandle, tabsCtrl.hasActiveScope
        );

        tabsCtrl.$scope = $scope;
        tabsCtrl.$element = $element;
        tabsCtrl.$tabsElement = jqLite($element[0].querySelector('.tabs'));

        $scope.$watch(function() { return $element[0].className; }, function(value) {
          var isTabsTop = value.indexOf('tabs-top') !== -1;
          var isHidden = value.indexOf('tabs-item-hide') !== -1;
          $scope.$hasTabs = !isTabsTop && !isHidden;
          $scope.$hasTabsTop = isTabsTop && !isHidden;
          $scope.$emit('$ionicTabs.top', $scope.$hasTabsTop);
        });

        function emitLifecycleEvent(ev, data) {
          ev.stopPropagation();
          var previousSelectedTab = tabsCtrl.previousSelectedTab();
          if (previousSelectedTab) {
            previousSelectedTab.$broadcast(ev.name.replace('NavView', 'Tabs'), data);
          }
        }

        $scope.$on('$ionicNavView.beforeLeave', emitLifecycleEvent);
        $scope.$on('$ionicNavView.afterLeave', emitLifecycleEvent);
        $scope.$on('$ionicNavView.leave', emitLifecycleEvent);

        $scope.$on('$destroy', function() {
          // variable to inform child tabs that they're all being blown away
          // used so that while destorying an individual tab, each one
          // doesn't select the next tab as the active one, which causes unnecessary
          // loading of tab views when each will eventually all go away anyway
          $scope.$tabsDestroy = true;
          deregisterInstance();
          tabsCtrl.$tabsElement = tabsCtrl.$element = tabsCtrl.$scope = innerElement = null;
          delete $scope.$hasTabs;
          delete $scope.$hasTabsTop;
        });
      }

      function postLink($scope, $element, $attr, tabsCtrl) {
        if (!tabsCtrl.selectedTab()) {
          // all the tabs have been added
          // but one hasn't been selected yet
          tabsCtrl.select(0);
        }
      }
    }
  };
}]);

/**
 * @ngdoc directive
 * @name ionToggle
 * @module ionic
 * @codepen tfAzj
 * @restrict E
 *
 * @description
 * A toggle is an animated switch which binds a given model to a boolean.
 *
 * Allows dragging of the switch's nub.
 *
 * The toggle behaves like any [AngularJS checkbox](http://docs.angularjs.org/api/ng/input/input[checkbox]) otherwise.
 *
 * @param toggle-class {string=} Sets the CSS class on the inner `label.toggle` element created by the directive.
 *
 * @usage
 * Below is an example of a toggle directive which is wired up to the `airplaneMode` model
 * and has the `toggle-calm` CSS class assigned to the inner element.
 *
 * ```html
 * <ion-toggle ng-model="airplaneMode" toggle-class="toggle-calm">Airplane Mode</ion-toggle>
 * ```
 */
IonicModule
.directive('ionToggle', [
  '$timeout',
  '$ionicConfig',
function($timeout, $ionicConfig) {

  return {
    restrict: 'E',
    replace: true,
    require: '?ngModel',
    transclude: true,
    template:
      '<div class="item item-toggle">' +
        '<div ng-transclude></div>' +
        '<label class="toggle">' +
          '<input type="checkbox">' +
          '<div class="track">' +
            '<div class="handle"></div>' +
          '</div>' +
        '</label>' +
      '</div>',

    compile: function(element, attr) {
      var input = element.find('input');
      forEach({
        'name': attr.name,
        'ng-value': attr.ngValue,
        'ng-model': attr.ngModel,
        'ng-checked': attr.ngChecked,
        'ng-disabled': attr.ngDisabled,
        'ng-true-value': attr.ngTrueValue,
        'ng-false-value': attr.ngFalseValue,
        'ng-change': attr.ngChange
      }, function(value, name) {
        if (isDefined(value)) {
          input.attr(name, value);
        }
      });

      if (attr.toggleClass) {
        element[0].getElementsByTagName('label')[0].classList.add(attr.toggleClass);
      }

      element.addClass('toggle-' + $ionicConfig.form.toggle());

      return function($scope, $element) {
        var el = $element[0].getElementsByTagName('label')[0];
        var checkbox = el.children[0];
        var track = el.children[1];
        var handle = track.children[0];

        var ngModelController = jqLite(checkbox).controller('ngModel');

        $scope.toggle = new ionic.views.Toggle({
          el: el,
          track: track,
          checkbox: checkbox,
          handle: handle,
          onChange: function() {
            if (ngModelController) {
              ngModelController.$setViewValue(checkbox.checked);
              $scope.$apply();
            }
          }
        });

        $scope.$on('$destroy', function() {
          $scope.toggle.destroy();
        });
      };
    }

  };
}]);

/**
 * @ngdoc directive
 * @name ionView
 * @module ionic
 * @restrict E
 * @parent ionNavView
 *
 * @description
 * A container for view content and any navigational and header bar information. When a view
 * enters and exists its parent {@link ionic.directive:ionNavView}, the view also emits view
 * information, such as its title, whether the back button should show or not, whether the
 * corresponding {@link ionic.directive:ionNavBar} should show or not, which transition the view
 * should use to animate, and which direction to animate.
 *
 * *Views are cached to improve performance.* When a view is navigated away from, its element is
 * left in the DOM, and its scope is disconnected from the `$watch` cycle. When navigating to a
 * view that is already cached, its scope is reconnected, and the existing element, which was
 * left in the DOM, becomes active again. This can be disabled, or the maximum number of cached
 * views changed in {@link ionic.provider:$ionicConfigProvider}, in the view's `$state` configuration, or
 * as an attribute on the view itself (see below).
 *
 * @usage
 * Below is an example where our page will load with a {@link ionic.directive:ionNavBar} containing
 * "My Page" as the title.
 *
 * ```html
 * <ion-nav-bar></ion-nav-bar>
 * <ion-nav-view>
 *   <ion-view view-title="My Page">
 *     <ion-content>
 *       Hello!
 *     </ion-content>
 *   </ion-view>
 * </ion-nav-view>
 * ```
 *
 * ## View LifeCycle and Events
 *
 * Views can be cached, which means ***controllers normally only load once***, which may
 * affect your controller logic. To know when a view has entered or left, events
 * have been added that are emitted from the view's scope. These events also
 * contain data about the view, such as the title and whether the back button should
 * show. Also contained is transition data, such as the transition type and
 * direction that will be or was used.
 *
 * <table class="table">
 *  <tr>
 *   <td><code>$ionicView.loaded</code></td>
 *   <td>The view has loaded. This event only happens once per
 * view being created and added to the DOM. If a view leaves but is cached,
 * then this event will not fire again on a subsequent viewing. The loaded event
 * is good place to put your setup code for the view; however, it is not the
 * recommended event to listen to when a view becomes active.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.enter</code></td>
 *   <td>The view has fully entered and is now the active view.
 * This event will fire, whether it was the first load or a cached view.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.leave</code></td>
 *   <td>The view has finished leaving and is no longer the
 * active view. This event will fire, whether it is cached or destroyed.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.beforeEnter</code></td>
 *   <td>The view is about to enter and become the active view.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.beforeLeave</code></td>
 *   <td>The view is about to leave and no longer be the active view.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.afterEnter</code></td>
 *   <td>The view has fully entered and is now the active view.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.afterLeave</code></td>
 *   <td>The view has finished leaving and is no longer the active view.</td>
 *  </tr>
 *  <tr>
 *   <td><code>$ionicView.unloaded</code></td>
 *   <td>The view's controller has been destroyed and its element has been
 * removed from the DOM.</td>
 *  </tr>
 * </table>
 *
 * ## Caching
 *
 * Caching can be disabled and enabled in multiple ways. By default, Ionic will
 * cache a maximum of 10 views. You can optionally choose to disable caching at
 * either an individual view basis, or by global configuration. Please see the
 * _Caching_ section in {@link ionic.directive:ionNavView} for more info.
 *
 * @param {string=} view-title A text-only title to display on the parent {@link ionic.directive:ionNavBar}.
 * For an HTML title, such as an image, see {@link ionic.directive:ionNavTitle} instead.
 * @param {boolean=} cache-view If this view should be allowed to be cached or not.
 * Please see the _Caching_ section in {@link ionic.directive:ionNavView} for
 * more info. Default `true`
 * @param {boolean=} hide-back-button Whether to hide the back button on the parent
 * {@link ionic.directive:ionNavBar} by default.
 * @param {boolean=} hide-nav-bar Whether to hide the parent
 * {@link ionic.directive:ionNavBar} by default.
 */
IonicModule
.directive('ionView', function() {
  return {
    restrict: 'EA',
    priority: 1000,
    controller: '$ionicView',
    compile: function(tElement) {
      tElement.addClass('pane');
      tElement[0].removeAttribute('title');
      return function link($scope, $element, $attrs, viewCtrl) {
        viewCtrl.init();
      };
    }
  };
});

})();