text: /*global define*/
  define([
          '../../Core/defined',
          '../../Core/defineProperties',
          '../../Core/destroyObject',
          '../../Core/DeveloperError',
          '../../Core/FeatureDetection',
          '../../ThirdParty/knockout',
          '../getElement',
          './GeocoderViewModel'
      ], function(
          defined,
          defineProperties,
          destroyObject,
          DeveloperError,
          FeatureDetection,
          knockout,
          getElement,
          GeocoderViewModel) {
      "use strict";
  
      var startSearchPath = 'M29.772,26.433l-7.126-7.126c0.96-1.583,1.523-3.435,1.524-5.421C24.169,8.093,19.478,3.401,13.688,3.399C7.897,3.401,3.204,8.093,3.204,13.885c0,5.789,4.693,10.481,10.484,10.481c1.987,0,3.839-0.563,5.422-1.523l7.128,7.127L29.772,26.433zM7.203,13.885c0.006-3.582,2.903-6.478,6.484-6.486c3.579,0.008,6.478,2.904,6.484,6.486c-0.007,3.58-2.905,6.476-6.484,6.484C10.106,20.361,7.209,17.465,7.203,13.885z';
      var stopSearchPath = 'M24.778,21.419 19.276,15.917 24.777,10.415 21.949,7.585 16.447,13.087 10.945,7.585 8.117,10.415 13.618,15.917 8.116,21.419 10.946,24.248 16.447,18.746 21.948,24.248z';
  
      /**
       * A widget for finding addresses and landmarks, and flying the camera to them.  Geocoding is
       * performed using the {@link http://msdn.microsoft.com/en-us/library/ff701715.aspx|Bing Maps Locations API}.
       *
       * @alias Geocoder
       * @constructor
       *
       * @param {Object} options Object with the following properties:
       * @param {Element|String} options.container The DOM element or ID that will contain the widget.
       * @param {Scene} options.scene The Scene instance to use.
       * @param {String} [options.url='//dev.virtualearth.net'] The base URL of the Bing Maps API.
       * @param {String} [options.key] The Bing Maps key for your application, which can be
       *        created at {@link https://www.bingmapsportal.com}.
       *        If this parameter is not provided, {@link BingMapsApi.defaultKey} is used.
       *        If {@link BingMapsApi.defaultKey} is undefined as well, a message is
       *        written to the console reminding you that you must create and supply a Bing Maps
       *        key as soon as possible.  Please do not deploy an application that uses
       *        this widget without creating a separate key for your application.
       * @param {Number} [options.flightDuration=1.5] The duration of the camera flight to an entered location, in seconds.
       */
      var Geocoder = function(options) {
          //>>includeStart('debug', pragmas.debug);
          if (!defined(options) || !defined(options.container)) {
              throw new DeveloperError('options.container is required.');
          }
          if (!defined(options.scene)) {
              throw new DeveloperError('options.scene is required.');
          }
          //>>includeEnd('debug');
  
          var container = getElement(options.container);
          var viewModel = new GeocoderViewModel(options);
  
          viewModel._startSearchPath = startSearchPath;
          viewModel._stopSearchPath = stopSearchPath;
  
          var form = document.createElement('form');
          form.setAttribute('data-bind', 'submit: search');
  
          var textBox = document.createElement('input');
          textBox.type = 'search';
          textBox.className = 'cesium-geocoder-input';
          textBox.setAttribute('placeholder', 'Enter an address or landmark...');
          textBox.setAttribute('data-bind', '\
  value: searchText,\
  valueUpdate: "afterkeydown",\
  disable: isSearchInProgress,\
  css: { "cesium-geocoder-input-wide" : searchText.length > 0 }');
          form.appendChild(textBox);
  
          var searchButton = document.createElement('span');
          searchButton.className = 'cesium-geocoder-searchButton';
          searchButton.setAttribute('data-bind', '\
  click: search,\
  cesiumSvgPath: { path: isSearchInProgress ? _stopSearchPath : _startSearchPath, width: 32, height: 32 }');
          form.appendChild(searchButton);
  
          container.appendChild(form);
  
          knockout.applyBindings(viewModel, form);
  
          this._container = container;
          this._viewModel = viewModel;
          this._form = form;
  
          this._onInputBegin = function(e) {
              if (!container.contains(e.target)) {
                  textBox.blur();
              }
          };
  
          this._onInputEnd = function(e) {
              if (container.contains(e.target)) {
                  textBox.focus();
              }
          };
  
          //We subscribe to both begin and end events in order to give the text box
          //focus no matter where on the widget is clicked.
  
          if (FeatureDetection.supportsPointerEvents()) {
              document.addEventListener('pointerdown', this._onInputBegin, true);
              document.addEventListener('pointerup', this._onInputEnd, true);
          } else {
              document.addEventListener('mousedown', this._onInputBegin, true);
              document.addEventListener('mouseup', this._onInputEnd, true);
              document.addEventListener('touchstart', this._onInputBegin, true);
              document.addEventListener('touchend', this._onInputEnd, true);
          }
  
      };
  
      defineProperties(Geocoder.prototype, {
          /**
           * Gets the parent container.
           * @memberof Geocoder.prototype
           *
           * @type {Element}
           */
          container : {
              get : function() {
                  return this._container;
              }
          },
  
          /**
           * Gets the view model.
           * @memberof Geocoder.prototype
           *
           * @type {GeocoderViewModel}
           */
          viewModel : {
              get : function() {
                  return this._viewModel;
              }
          }
      });
  
      /**
       * @returns {Boolean} true if the object has been destroyed, false otherwise.
       */
      Geocoder.prototype.isDestroyed = function() {
          return false;
      };
  
      /**
       * Destroys the widget.  Should be called if permanently
       * removing the widget from layout.
       */
      Geocoder.prototype.destroy = function() {
          if (FeatureDetection.supportsPointerEvents()) {
              document.removeEventListener('pointerdown', this._onInputBegin, true);
              document.removeEventListener('pointerup', this._onInputEnd, true);
          } else {
              document.removeEventListener('mousedown', this._onInputBegin, true);
              document.removeEventListener('mouseup', this._onInputEnd, true);
              document.removeEventListener('touchstart', this._onInputBegin, true);
              document.removeEventListener('touchend', this._onInputEnd, true);
          }
  
          knockout.cleanNode(this._form);
          this._container.removeChild(this._form);
  
          return destroyObject(this);
      };
  
      return Geocoder;
  });
  