text: /**
   * Colorpicker component class
   *
   * @param {Object|String} element
   * @param {Object} options
   * @constructor
   */
  var Colorpicker = function(element, options) {
    this.element = $(element).addClass('colorpicker-element');
    this.options = $.extend(true, {}, defaults, this.element.data(), options);
    this.component = this.options.component;
    this.component = (this.component !== false) ? this.element.find(this.component) : false;
    if (this.component && (this.component.length === 0)) {
      this.component = false;
    }
    this.container = (this.options.container === true) ? this.element : this.options.container;
    this.container = (this.container !== false) ? $(this.container) : false;
  
    // Is the element an input? Should we search inside for any input?
    this.input = this.element.is('input') ? this.element : (this.options.input ?
      this.element.find(this.options.input) : false);
    if (this.input && (this.input.length === 0)) {
      this.input = false;
    }
    // Set HSB color
    this.color = this.createColor(this.options.color !== false ? this.options.color : this.getValue());
  
    this.format = this.options.format !== false ? this.options.format : this.color.origFormat;
  
    if (this.options.color !== false) {
      this.updateInput(this.color);
      this.updateData(this.color);
    }
  
    // Setup picker
    var $picker = this.picker = $(this.options.template);
    if (this.options.customClass) {
      $picker.addClass(this.options.customClass);
    }
    if (this.options.inline) {
      $picker.addClass('colorpicker-inline colorpicker-visible');
    } else {
      $picker.addClass('colorpicker-hidden');
    }
    if (this.options.horizontal) {
      $picker.addClass('colorpicker-horizontal');
    }
    if (
      (['rgba', 'hsla', 'alias'].indexOf(this.format) !== -1) ||
      this.options.format === false ||
      this.getValue() === 'transparent'
    ) {
      $picker.addClass('colorpicker-with-alpha');
    }
    if (this.options.align === 'right') {
      $picker.addClass('colorpicker-right');
    }
    if (this.options.inline === true) {
      $picker.addClass('colorpicker-no-arrow');
    }
    if (this.options.colorSelectors) {
      var colorpicker = this,
        selectorsContainer = colorpicker.picker.find('.colorpicker-selectors');
  
      if (selectorsContainer.length > 0) {
        $.each(this.options.colorSelectors, function(name, color) {
          var $btn = $('<i />')
            .addClass('colorpicker-selectors-color')
            .css('background-color', color)
            .data('class', name).data('alias', name);
  
          $btn.on('mousedown.colorpicker touchstart.colorpicker', function(event) {
            event.preventDefault();
            colorpicker.setValue(
              colorpicker.format === 'alias' ? $(this).data('alias') : $(this).css('background-color')
            );
          });
          selectorsContainer.append($btn);
        });
        selectorsContainer.show().addClass('colorpicker-visible');
      }
    }
  
    // Prevent closing the colorpicker when clicking on itself
    $picker.on('mousedown.colorpicker touchstart.colorpicker', $.proxy(function(e) {
      if (e.target === e.currentTarget) {
        e.preventDefault();
      }
    }, this));
  
    // Bind click/tap events on the sliders
    $picker.find('.colorpicker-saturation, .colorpicker-hue, .colorpicker-alpha')
      .on('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.mousedown, this));
  
    $picker.appendTo(this.container ? this.container : $('body'));
  
    // Bind other events
    if (this.input !== false) {
      this.input.on({
        'keyup.colorpicker': $.proxy(this.keyup, this)
      });
      this.input.on({
        'change.colorpicker': $.proxy(this.change, this)
      });
      if (this.component === false) {
        this.element.on({
          'focus.colorpicker': $.proxy(this.show, this)
        });
      }
      if (this.options.inline === false) {
        this.element.on({
          'focusout.colorpicker': $.proxy(this.hide, this)
        });
      }
    }
  
    if (this.component !== false) {
      this.component.on({
        'click.colorpicker': $.proxy(this.show, this)
      });
    }
  
    if ((this.input === false) && (this.component === false)) {
      this.element.on({
        'click.colorpicker': $.proxy(this.show, this)
      });
    }
  
    // for HTML5 input[type='color']
    if ((this.input !== false) && (this.component !== false) && (this.input.attr('type') === 'color')) {
  
      this.input.on({
        'click.colorpicker': $.proxy(this.show, this),
        'focus.colorpicker': $.proxy(this.show, this)
      });
    }
    this.update();
  
    $($.proxy(function() {
      this.element.trigger('create');
    }, this));
  };
  
  Colorpicker.Color = Color;
  
  Colorpicker.prototype = {
    constructor: Colorpicker,
    destroy: function() {
      this.picker.remove();
      this.element.removeData('colorpicker', 'color').off('.colorpicker');
      if (this.input !== false) {
        this.input.off('.colorpicker');
      }
      if (this.component !== false) {
        this.component.off('.colorpicker');
      }
      this.element.removeClass('colorpicker-element');
      this.element.trigger({
        type: 'destroy'
      });
    },
    reposition: function() {
      if (this.options.inline !== false || this.options.container) {
        return false;
      }
      var type = this.container && this.container[0] !== window.document.body ? 'position' : 'offset';
      var element = this.component || this.element;
      var offset = element[type]();
      if (this.options.align === 'right') {
        offset.left -= this.picker.outerWidth() - element.outerWidth();
      }
      this.picker.css({
        top: offset.top + element.outerHeight(),
        left: offset.left
      });
    },
    show: function(e) {
      if (this.isDisabled()) {
        // Don't show the widget if it's disabled (the input)
        return;
      }
      this.picker.addClass('colorpicker-visible').removeClass('colorpicker-hidden');
      this.reposition();
      $(window).on('resize.colorpicker', $.proxy(this.reposition, this));
      if (e && (!this.hasInput() || this.input.attr('type') === 'color')) {
        if (e.stopPropagation && e.preventDefault) {
          e.stopPropagation();
          e.preventDefault();
        }
      }
      if ((this.component || !this.input) && (this.options.inline === false)) {
        $(window.document).on({
          'mousedown.colorpicker': $.proxy(this.hide, this)
        });
      }
      this.element.trigger({
        type: 'showPicker',
        color: this.color
      });
    },
    hide: function(e) {
      if ((typeof e !== 'undefined') && e.target) {
        // Prevent hide if triggered by an event and an element inside the colorpicker has been clicked/touched
        if (
          $(e.currentTarget).parents('.colorpicker').length > 0 ||
          $(e.target).parents('.colorpicker').length > 0
        ) {
          return false;
        }
      }
      this.picker.addClass('colorpicker-hidden').removeClass('colorpicker-visible');
      $(window).off('resize.colorpicker', this.reposition);
      $(window.document).off({
        'mousedown.colorpicker': this.hide
      });
      this.update();
      this.element.trigger({
        type: 'hidePicker',
        color: this.color
      });
    },
    updateData: function(val) {
      val = val || this.color.toString(this.format, false);
      this.element.data('color', val);
      return val;
    },
    updateInput: function(val) {
      val = val || this.color.toString(this.format, false);
      if (this.input !== false) {
        this.input.prop('value', val);
        this.input.trigger('change');
      }
      return val;
    },
    updatePicker: function(val) {
      if (typeof val !== 'undefined') {
        this.color = this.createColor(val);
      }
      var sl = (this.options.horizontal === false) ? this.options.sliders : this.options.slidersHorz;
      var icns = this.picker.find('i');
      if (icns.length === 0) {
        return;
      }
      if (this.options.horizontal === false) {
        sl = this.options.sliders;
        icns.eq(1).css('top', sl.hue.maxTop * (1 - this.color.value.h)).end()
          .eq(2).css('top', sl.alpha.maxTop * (1 - this.color.value.a));
      } else {
        sl = this.options.slidersHorz;
        icns.eq(1).css('left', sl.hue.maxLeft * (1 - this.color.value.h)).end()
          .eq(2).css('left', sl.alpha.maxLeft * (1 - this.color.value.a));
      }
      icns.eq(0).css({
        'top': sl.saturation.maxTop - this.color.value.b * sl.saturation.maxTop,
        'left': this.color.value.s * sl.saturation.maxLeft
      });
  
      this.picker.find('.colorpicker-saturation')
        .css('backgroundColor', (this.options.hexNumberSignPrefix ? '' : '#') + this.color.toHex(this.color.value.h, 1, 1, 1));
  
      this.picker.find('.colorpicker-alpha')
        .css('backgroundColor', (this.options.hexNumberSignPrefix ? '' : '#') + this.color.toHex());
  
      this.picker.find('.colorpicker-color, .colorpicker-color div')
        .css('backgroundColor', this.color.toString(this.format, true));
  
      return val;
    },
    updateComponent: function(val) {
      var color;
  
      if (typeof val !== 'undefined') {
        color = this.createColor(val);
      } else {
        color = this.color;
      }
  
      if (this.component !== false) {
        var icn = this.component.find('i').eq(0);
        if (icn.length > 0) {
          icn.css({
            'backgroundColor': color.toString(this.format, true)
          });
        } else {
          this.component.css({
            'backgroundColor': color.toString(this.format, true)
          });
        }
      }
  
      return color.toString(this.format, false);
    },
    update: function(force) {
      var val;
      if ((this.getValue(false) !== false) || (force === true)) {
        // Update input/data only if the current value is not empty
        val = this.updateComponent();
        this.updateInput(val);
        this.updateData(val);
        this.updatePicker(); // only update picker if value is not empty
      }
      return val;
  
    },
    setValue: function(val) { // set color manually
      this.color = this.createColor(val);
      this.update(true);
      this.element.trigger({
        type: 'changeColor',
        color: this.color,
        value: val
      });
    },
    /**
     * Creates a new color using the instance options
     * @protected
     * @param {String} val
     * @returns {Color}
     */
    createColor: function(val) {
      return new Color(
        val ? val : null,
        this.options.colorSelectors,
        this.options.fallbackColor ? this.options.fallbackColor : this.color,
        this.options.fallbackFormat,
        this.options.hexNumberSignPrefix
      );
    },
    getValue: function(defaultValue) {
      defaultValue = (typeof defaultValue === 'undefined') ? this.options.fallbackColor : defaultValue;
      var val;
      if (this.hasInput()) {
        val = this.input.val();
      } else {
        val = this.element.data('color');
      }
      if ((val === undefined) || (val === '') || (val === null)) {
        // if not defined or empty, return default
        val = defaultValue;
      }
      return val;
    },
    hasInput: function() {
      return (this.input !== false);
    },
    isDisabled: function() {
      if (this.hasInput()) {
        return (this.input.prop('disabled') === true);
      }
      return false;
    },
    disable: function() {
      if (this.hasInput()) {
        this.input.prop('disabled', true);
        this.element.trigger({
          type: 'disable',
          color: this.color,
          value: this.getValue()
        });
        return true;
      }
      return false;
    },
    enable: function() {
      if (this.hasInput()) {
        this.input.prop('disabled', false);
        this.element.trigger({
          type: 'enable',
          color: this.color,
          value: this.getValue()
        });
        return true;
      }
      return false;
    },
    currentSlider: null,
    mousePointer: {
      left: 0,
      top: 0
    },
    mousedown: function(e) {
      if (!e.pageX && !e.pageY && e.originalEvent && e.originalEvent.touches) {
        e.pageX = e.originalEvent.touches[0].pageX;
        e.pageY = e.originalEvent.touches[0].pageY;
      }
      e.stopPropagation();
      e.preventDefault();
  
      var target = $(e.target);
  
      //detect the slider and set the limits and callbacks
      var zone = target.closest('div');
      var sl = this.options.horizontal ? this.options.slidersHorz : this.options.sliders;
      if (!zone.is('.colorpicker')) {
        if (zone.is('.colorpicker-saturation')) {
          this.currentSlider = $.extend({}, sl.saturation);
        } else if (zone.is('.colorpicker-hue')) {
          this.currentSlider = $.extend({}, sl.hue);
        } else if (zone.is('.colorpicker-alpha')) {
          this.currentSlider = $.extend({}, sl.alpha);
        } else {
          return false;
        }
        var offset = zone.offset();
        //reference to guide's style
        this.currentSlider.guide = zone.find('i')[0].style;
        this.currentSlider.left = e.pageX - offset.left;
        this.currentSlider.top = e.pageY - offset.top;
        this.mousePointer = {
          left: e.pageX,
          top: e.pageY
        };
        //trigger mousemove to move the guide to the current position
        $(window.document).on({
          'mousemove.colorpicker': $.proxy(this.mousemove, this),
          'touchmove.colorpicker': $.proxy(this.mousemove, this),
          'mouseup.colorpicker': $.proxy(this.mouseup, this),
          'touchend.colorpicker': $.proxy(this.mouseup, this)
        }).trigger('mousemove');
      }
      return false;
    },
    mousemove: function(e) {
      if (!e.pageX && !e.pageY && e.originalEvent && e.originalEvent.touches) {
        e.pageX = e.originalEvent.touches[0].pageX;
        e.pageY = e.originalEvent.touches[0].pageY;
      }
      e.stopPropagation();
      e.preventDefault();
      var left = Math.max(
        0,
        Math.min(
          this.currentSlider.maxLeft,
          this.currentSlider.left + ((e.pageX || this.mousePointer.left) - this.mousePointer.left)
        )
      );
      var top = Math.max(
        0,
        Math.min(
          this.currentSlider.maxTop,
          this.currentSlider.top + ((e.pageY || this.mousePointer.top) - this.mousePointer.top)
        )
      );
      this.currentSlider.guide.left = left + 'px';
      this.currentSlider.guide.top = top + 'px';
      if (this.currentSlider.callLeft) {
        this.color[this.currentSlider.callLeft].call(this.color, left / this.currentSlider.maxLeft);
      }
      if (this.currentSlider.callTop) {
        this.color[this.currentSlider.callTop].call(this.color, top / this.currentSlider.maxTop);
      }
      // Change format dynamically
      // Only occurs if users choose the dynamic format by
      // setting option format to false
      if (
        this.options.format === false &&
        (this.currentSlider.callTop === 'setAlpha' ||
          this.currentSlider.callLeft === 'setAlpha')
      ) {
  
        // Converting from hex / rgb to rgba
        if (this.color.value.a !== 1) {
          this.format = 'rgba';
          this.color.origFormat = 'rgba';
        }
  
        // Converting from rgba to hex
        else {
          this.format = 'hex';
          this.color.origFormat = 'hex';
        }
      }
      this.update(true);
  
      this.element.trigger({
        type: 'changeColor',
        color: this.color
      });
      return false;
    },
    mouseup: function(e) {
      e.stopPropagation();
      e.preventDefault();
      $(window.document).off({
        'mousemove.colorpicker': this.mousemove,
        'touchmove.colorpicker': this.mousemove,
        'mouseup.colorpicker': this.mouseup,
        'touchend.colorpicker': this.mouseup
      });
      return false;
    },
    change: function(e) {
      this.keyup(e);
    },
    keyup: function(e) {
      if ((e.keyCode === 38)) {
        if (this.color.value.a < 1) {
          this.color.value.a = Math.round((this.color.value.a + 0.01) * 100) / 100;
        }
        this.update(true);
      } else if ((e.keyCode === 40)) {
        if (this.color.value.a > 0) {
          this.color.value.a = Math.round((this.color.value.a - 0.01) * 100) / 100;
        }
        this.update(true);
      } else {
        this.color = this.createColor(this.input.val());
        // Change format dynamically
        // Only occurs if users choose the dynamic format by
        // setting option format to false
        if (this.color.origFormat && this.options.format === false) {
          this.format = this.color.origFormat;
        }
        if (this.getValue(false) !== false) {
          this.updateData();
          this.updateComponent();
          this.updatePicker();
        }
      }
      this.element.trigger({
        type: 'changeColor',
        color: this.color,
        value: this.input.val()
      });
    }
  };
  
  $.colorpicker = Colorpicker;
  
  $.fn.colorpicker = function(option) {
    var apiArgs = Array.prototype.slice.call(arguments, 1),
      isSingleElement = (this.length === 1),
      returnValue = null;
  
    var $jq = this.each(function() {
      var $this = $(this),
        inst = $this.data('colorpicker'),
        options = ((typeof option === 'object') ? option : {});
  
      if (!inst) {
        inst = new Colorpicker(this, options);
        $this.data('colorpicker', inst);
      }
  
      if (typeof option === 'string') {
        if ($.isFunction(inst[option])) {
          returnValue = inst[option].apply(inst, apiArgs);
        } else { // its a property ?
          if (apiArgs.length) {
            // set property
            inst[option] = apiArgs[0];
          }
          returnValue = inst[option];
        }
      } else {
        returnValue = $this;
      }
    });
    return isSingleElement ? returnValue : $jq;
  };
  
  $.fn.colorpicker.constructor = Colorpicker;
  