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/*!
 * Bootstrap Colorpicker v2.3.3
 * http://mjolnic.github.io/bootstrap-colorpicker/
 *
 * Originally written by (c) 2012 Stefan Petre
 * Licensed under the Apache License v2.0
 * http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 */

(function(factory) {
  "use strict";
  if (typeof exports === 'object') {
    module.exports = factory(window.jQuery);
  } else if (typeof define === 'function' && define.amd) {
    define(['jquery'], factory);
  } else if (window.jQuery && !window.jQuery.fn.colorpicker) {
    factory(window.jQuery);
  }
}(function($) {
  'use strict';

  /**
   * Color manipulation helper class
   *
   * @param {Object|String} val
   * @param {Object} predefinedColors
   * @constructor
   */
  var Color = function(val, predefinedColors) {
    this.value = {
      h: 0,
      s: 0,
      b: 0,
      a: 1
    };
    this.origFormat = null; // original string format
    if (predefinedColors) {
      $.extend(this.colors, predefinedColors);
    }
    if (val) {
      if (val.toLowerCase !== undefined) {
        // cast to string
        val = val + '';
        this.setColor(val);
      } else if (val.h !== undefined) {
        this.value = val;
      }
    }
  };

  Color.prototype = {
    constructor: Color,
    // 140 predefined colors from the HTML Colors spec
    colors: {
      "aliceblue": "#f0f8ff",
      "antiquewhite": "#faebd7",
      "aqua": "#00ffff",
      "aquamarine": "#7fffd4",
      "azure": "#f0ffff",
      "beige": "#f5f5dc",
      "bisque": "#ffe4c4",
      "black": "#000000",
      "blanchedalmond": "#ffebcd",
      "blue": "#0000ff",
      "blueviolet": "#8a2be2",
      "brown": "#a52a2a",
      "burlywood": "#deb887",
      "cadetblue": "#5f9ea0",
      "chartreuse": "#7fff00",
      "chocolate": "#d2691e",
      "coral": "#ff7f50",
      "cornflowerblue": "#6495ed",
      "cornsilk": "#fff8dc",
      "crimson": "#dc143c",
      "cyan": "#00ffff",
      "darkblue": "#00008b",
      "darkcyan": "#008b8b",
      "darkgoldenrod": "#b8860b",
      "darkgray": "#a9a9a9",
      "darkgreen": "#006400",
      "darkkhaki": "#bdb76b",
      "darkmagenta": "#8b008b",
      "darkolivegreen": "#556b2f",
      "darkorange": "#ff8c00",
      "darkorchid": "#9932cc",
      "darkred": "#8b0000",
      "darksalmon": "#e9967a",
      "darkseagreen": "#8fbc8f",
      "darkslateblue": "#483d8b",
      "darkslategray": "#2f4f4f",
      "darkturquoise": "#00ced1",
      "darkviolet": "#9400d3",
      "deeppink": "#ff1493",
      "deepskyblue": "#00bfff",
      "dimgray": "#696969",
      "dodgerblue": "#1e90ff",
      "firebrick": "#b22222",
      "floralwhite": "#fffaf0",
      "forestgreen": "#228b22",
      "fuchsia": "#ff00ff",
      "gainsboro": "#dcdcdc",
      "ghostwhite": "#f8f8ff",
      "gold": "#ffd700",
      "goldenrod": "#daa520",
      "gray": "#808080",
      "green": "#008000",
      "greenyellow": "#adff2f",
      "honeydew": "#f0fff0",
      "hotpink": "#ff69b4",
      "indianred": "#cd5c5c",
      "indigo": "#4b0082",
      "ivory": "#fffff0",
      "khaki": "#f0e68c",
      "lavender": "#e6e6fa",
      "lavenderblush": "#fff0f5",
      "lawngreen": "#7cfc00",
      "lemonchiffon": "#fffacd",
      "lightblue": "#add8e6",
      "lightcoral": "#f08080",
      "lightcyan": "#e0ffff",
      "lightgoldenrodyellow": "#fafad2",
      "lightgrey": "#d3d3d3",
      "lightgreen": "#90ee90",
      "lightpink": "#ffb6c1",
      "lightsalmon": "#ffa07a",
      "lightseagreen": "#20b2aa",
      "lightskyblue": "#87cefa",
      "lightslategray": "#778899",
      "lightsteelblue": "#b0c4de",
      "lightyellow": "#ffffe0",
      "lime": "#00ff00",
      "limegreen": "#32cd32",
      "linen": "#faf0e6",
      "magenta": "#ff00ff",
      "maroon": "#800000",
      "mediumaquamarine": "#66cdaa",
      "mediumblue": "#0000cd",
      "mediumorchid": "#ba55d3",
      "mediumpurple": "#9370d8",
      "mediumseagreen": "#3cb371",
      "mediumslateblue": "#7b68ee",
      "mediumspringgreen": "#00fa9a",
      "mediumturquoise": "#48d1cc",
      "mediumvioletred": "#c71585",
      "midnightblue": "#191970",
      "mintcream": "#f5fffa",
      "mistyrose": "#ffe4e1",
      "moccasin": "#ffe4b5",
      "navajowhite": "#ffdead",
      "navy": "#000080",
      "oldlace": "#fdf5e6",
      "olive": "#808000",
      "olivedrab": "#6b8e23",
      "orange": "#ffa500",
      "orangered": "#ff4500",
      "orchid": "#da70d6",
      "palegoldenrod": "#eee8aa",
      "palegreen": "#98fb98",
      "paleturquoise": "#afeeee",
      "palevioletred": "#d87093",
      "papayawhip": "#ffefd5",
      "peachpuff": "#ffdab9",
      "peru": "#cd853f",
      "pink": "#ffc0cb",
      "plum": "#dda0dd",
      "powderblue": "#b0e0e6",
      "purple": "#800080",
      "red": "#ff0000",
      "rosybrown": "#bc8f8f",
      "royalblue": "#4169e1",
      "saddlebrown": "#8b4513",
      "salmon": "#fa8072",
      "sandybrown": "#f4a460",
      "seagreen": "#2e8b57",
      "seashell": "#fff5ee",
      "sienna": "#a0522d",
      "silver": "#c0c0c0",
      "skyblue": "#87ceeb",
      "slateblue": "#6a5acd",
      "slategray": "#708090",
      "snow": "#fffafa",
      "springgreen": "#00ff7f",
      "steelblue": "#4682b4",
      "tan": "#d2b48c",
      "teal": "#008080",
      "thistle": "#d8bfd8",
      "tomato": "#ff6347",
      "turquoise": "#40e0d0",
      "violet": "#ee82ee",
      "wheat": "#f5deb3",
      "white": "#ffffff",
      "whitesmoke": "#f5f5f5",
      "yellow": "#ffff00",
      "yellowgreen": "#9acd32",
      "transparent": "transparent"
    },
    _sanitizeNumber: function(val) {
      if (typeof val === 'number') {
        return val;
      }
      if (isNaN(val) || (val === null) || (val === '') || (val === undefined)) {
        return 1;
      }
      if (val === '') {
        return 0;
      }
      if (val.toLowerCase !== undefined) {
        if (val.match(/^\./)) {
          val = "0" + val;
        }
        return Math.ceil(parseFloat(val) * 100) / 100;
      }
      return 1;
    },
    isTransparent: function(strVal) {
      if (!strVal) {
        return false;
      }
      strVal = strVal.toLowerCase().trim();
      return (strVal === 'transparent') || (strVal.match(/#?00000000/)) || (strVal.match(/(rgba|hsla)\(0,0,0,0?\.?0\)/));
    },
    rgbaIsTransparent: function(rgba) {
      return ((rgba.r === 0) && (rgba.g === 0) && (rgba.b === 0) && (rgba.a === 0));
    },
    //parse a string to HSB
    setColor: function(strVal) {
      strVal = strVal.toLowerCase().trim();
      if (strVal) {
        if (this.isTransparent(strVal)) {
          this.value = {
            h: 0,
            s: 0,
            b: 0,
            a: 0
          };
        } else {
          this.value = this.stringToHSB(strVal) || {
            h: 0,
            s: 0,
            b: 0,
            a: 1
          }; // if parser fails, defaults to black
        }
      }
    },
    stringToHSB: function(strVal) {
      strVal = strVal.toLowerCase();
      var alias;
      if (typeof this.colors[strVal] !== 'undefined') {
        strVal = this.colors[strVal];
        alias = 'alias';
      }
      var that = this,
        result = false;
      $.each(this.stringParsers, function(i, parser) {
        var match = parser.re.exec(strVal),
          values = match && parser.parse.apply(that, [match]),
          format = alias || parser.format || 'rgba';
        if (values) {
          if (format.match(/hsla?/)) {
            result = that.RGBtoHSB.apply(that, that.HSLtoRGB.apply(that, values));
          } else {
            result = that.RGBtoHSB.apply(that, values);
          }
          that.origFormat = format;
          return false;
        }
        return true;
      });
      return result;
    },
    setHue: function(h) {
      this.value.h = 1 - h;
    },
    setSaturation: function(s) {
      this.value.s = s;
    },
    setBrightness: function(b) {
      this.value.b = 1 - b;
    },
    setAlpha: function(a) {
      this.value.a = Math.round((parseInt((1 - a) * 100, 10) / 100) * 100) / 100;
    },
    toRGB: function(h, s, b, a) {
      if (!h) {
        h = this.value.h;
        s = this.value.s;
        b = this.value.b;
      }
      h *= 360;
      var R, G, B, X, C;
      h = (h % 360) / 60;
      C = b * s;
      X = C * (1 - Math.abs(h % 2 - 1));
      R = G = B = b - C;

      h = ~~h;
      R += [C, X, 0, 0, X, C][h];
      G += [X, C, C, X, 0, 0][h];
      B += [0, 0, X, C, C, X][h];
      return {
        r: Math.round(R * 255),
        g: Math.round(G * 255),
        b: Math.round(B * 255),
        a: a || this.value.a
      };
    },
    toHex: function(h, s, b, a) {
      var rgb = this.toRGB(h, s, b, a);
      if (this.rgbaIsTransparent(rgb)) {
        return 'transparent';
      }
      return '#' + ((1 << 24) | (parseInt(rgb.r) << 16) | (parseInt(rgb.g) << 8) | parseInt(rgb.b)).toString(16).substr(1);
    },
    toHSL: function(h, s, b, a) {
      h = h || this.value.h;
      s = s || this.value.s;
      b = b || this.value.b;
      a = a || this.value.a;

      var H = h,
        L = (2 - s) * b,
        S = s * b;
      if (L > 0 && L <= 1) {
        S /= L;
      } else {
        S /= 2 - L;
      }
      L /= 2;
      if (S > 1) {
        S = 1;
      }
      return {
        h: isNaN(H) ? 0 : H,
        s: isNaN(S) ? 0 : S,
        l: isNaN(L) ? 0 : L,
        a: isNaN(a) ? 0 : a
      };
    },
    toAlias: function(r, g, b, a) {
      var rgb = this.toHex(r, g, b, a);
      for (var alias in this.colors) {
        if (this.colors[alias] === rgb) {
          return alias;
        }
      }
      return false;
    },
    RGBtoHSB: function(r, g, b, a) {
      r /= 255;
      g /= 255;
      b /= 255;

      var H, S, V, C;
      V = Math.max(r, g, b);
      C = V - Math.min(r, g, b);
      H = (C === 0 ? null :
        V === r ? (g - b) / C :
        V === g ? (b - r) / C + 2 :
        (r - g) / C + 4
      );
      H = ((H + 360) % 6) * 60 / 360;
      S = C === 0 ? 0 : C / V;
      return {
        h: this._sanitizeNumber(H),
        s: S,
        b: V,
        a: this._sanitizeNumber(a)
      };
    },
    HueToRGB: function(p, q, h) {
      if (h < 0) {
        h += 1;
      } else if (h > 1) {
        h -= 1;
      }
      if ((h * 6) < 1) {
        return p + (q - p) * h * 6;
      } else if ((h * 2) < 1) {
        return q;
      } else if ((h * 3) < 2) {
        return p + (q - p) * ((2 / 3) - h) * 6;
      } else {
        return p;
      }
    },
    HSLtoRGB: function(h, s, l, a) {
      if (s < 0) {
        s = 0;
      }
      var q;
      if (l <= 0.5) {
        q = l * (1 + s);
      } else {
        q = l + s - (l * s);
      }

      var p = 2 * l - q;

      var tr = h + (1 / 3);
      var tg = h;
      var tb = h - (1 / 3);

      var r = Math.round(this.HueToRGB(p, q, tr) * 255);
      var g = Math.round(this.HueToRGB(p, q, tg) * 255);
      var b = Math.round(this.HueToRGB(p, q, tb) * 255);
      return [r, g, b, this._sanitizeNumber(a)];
    },
    toString: function(format) {
      format = format || 'rgba';
      var c = false;
      switch (format) {
        case 'rgb':
          {
            c = this.toRGB();
            if (this.rgbaIsTransparent(c)) {
              return 'transparent';
            }
            return 'rgb(' + c.r + ',' + c.g + ',' + c.b + ')';
          }
          break;
        case 'rgba':
          {
            c = this.toRGB();
            return 'rgba(' + c.r + ',' + c.g + ',' + c.b + ',' + c.a + ')';
          }
          break;
        case 'hsl':
          {
            c = this.toHSL();
            return 'hsl(' + Math.round(c.h * 360) + ',' + Math.round(c.s * 100) + '%,' + Math.round(c.l * 100) + '%)';
          }
          break;
        case 'hsla':
          {
            c = this.toHSL();
            return 'hsla(' + Math.round(c.h * 360) + ',' + Math.round(c.s * 100) + '%,' + Math.round(c.l * 100) + '%,' + c.a + ')';
          }
          break;
        case 'hex':
          {
            return this.toHex();
          }
          break;
        case 'alias':
          return this.toAlias() || this.toHex();
        default:
          {
            return c;
          }
          break;
      }
    },
    // a set of RE's that can match strings and generate color tuples.
    // from John Resig color plugin
    // https://github.com/jquery/jquery-color/
    stringParsers: [{
      re: /rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*?\)/,
      format: 'rgb',
      parse: function(execResult) {
        return [
          execResult[1],
          execResult[2],
          execResult[3],
          1
        ];
      }
    }, {
      re: /rgb\(\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*?\)/,
      format: 'rgb',
      parse: function(execResult) {
        return [
          2.55 * execResult[1],
          2.55 * execResult[2],
          2.55 * execResult[3],
          1
        ];
      }
    }, {
      re: /rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*(?:,\s*(\d*(?:\.\d+)?)\s*)?\)/,
      format: 'rgba',
      parse: function(execResult) {
        return [
          execResult[1],
          execResult[2],
          execResult[3],
          execResult[4]
        ];
      }
    }, {
      re: /rgba\(\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*(?:,\s*(\d*(?:\.\d+)?)\s*)?\)/,
      format: 'rgba',
      parse: function(execResult) {
        return [
          2.55 * execResult[1],
          2.55 * execResult[2],
          2.55 * execResult[3],
          execResult[4]
        ];
      }
    }, {
      re: /hsl\(\s*(\d*(?:\.\d+)?)\s*,\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*?\)/,
      format: 'hsl',
      parse: function(execResult) {
        return [
          execResult[1] / 360,
          execResult[2] / 100,
          execResult[3] / 100,
          execResult[4]
        ];
      }
    }, {
      re: /hsla\(\s*(\d*(?:\.\d+)?)\s*,\s*(\d*(?:\.\d+)?)\%\s*,\s*(\d*(?:\.\d+)?)\%\s*(?:,\s*(\d*(?:\.\d+)?)\s*)?\)/,
      format: 'hsla',
      parse: function(execResult) {
        return [
          execResult[1] / 360,
          execResult[2] / 100,
          execResult[3] / 100,
          execResult[4]
        ];
      }
    }, {
      re: /#?([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/,
      format: 'hex',
      parse: function(execResult) {
        return [
          parseInt(execResult[1], 16),
          parseInt(execResult[2], 16),
          parseInt(execResult[3], 16),
          1
        ];
      }
    }, {
      re: /#?([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/,
      format: 'hex',
      parse: function(execResult) {
        return [
          parseInt(execResult[1] + execResult[1], 16),
          parseInt(execResult[2] + execResult[2], 16),
          parseInt(execResult[3] + execResult[3], 16),
          1
        ];
      }
    }],
    colorNameToHex: function(name) {
      if (typeof this.colors[name.toLowerCase()] !== 'undefined') {
        return this.colors[name.toLowerCase()];
      }
      return false;
    }
  };

  /*
   * Default plugin options
   */
  var defaults = {
    horizontal: false, // horizontal mode layout ?
    inline: false, //forces to show the colorpicker as an inline element
    color: false, //forces a color
    format: false, //forces a format
    input: 'input', // children input selector
    container: false, // container selector
    component: '.add-on, .input-group-addon', // children component selector
    sliders: {
      saturation: {
        maxLeft: 100,
        maxTop: 100,
        callLeft: 'setSaturation',
        callTop: 'setBrightness'
      },
      hue: {
        maxLeft: 0,
        maxTop: 100,
        callLeft: false,
        callTop: 'setHue'
      },
      alpha: {
        maxLeft: 0,
        maxTop: 100,
        callLeft: false,
        callTop: 'setAlpha'
      }
    },
    slidersHorz: {
      saturation: {
        maxLeft: 100,
        maxTop: 100,
        callLeft: 'setSaturation',
        callTop: 'setBrightness'
      },
      hue: {
        maxLeft: 100,
        maxTop: 0,
        callLeft: 'setHue',
        callTop: false
      },
      alpha: {
        maxLeft: 100,
        maxTop: 0,
        callLeft: 'setAlpha',
        callTop: false
      }
    },
    template: '<div class="colorpicker dropdown-menu">' +
      '<div class="colorpicker-saturation"><i><b></b></i></div>' +
      '<div class="colorpicker-hue"><i></i></div>' +
      '<div class="colorpicker-alpha"><i></i></div>' +
      '<div class="colorpicker-color"><div /></div>' +
      '<div class="colorpicker-selectors"></div>' +
      '</div>',
    align: 'right',
    customClass: null,
    colorSelectors: null
  };

  /**
   * 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 = new Color(this.options.color !== false ? this.options.color : this.getValue(), this.options.colorSelectors);
    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
    this.picker = $(this.options.template);
    if (this.options.customClass) {
      this.picker.addClass(this.options.customClass);
    }
    if (this.options.inline) {
      this.picker.addClass('colorpicker-inline colorpicker-visible');
    } else {
      this.picker.addClass('colorpicker-hidden');
    }
    if (this.options.horizontal) {
      this.picker.addClass('colorpicker-horizontal');
    }
    if (this.format === 'rgba' || this.format === 'hsla' || this.options.format === false) {
      this.picker.addClass('colorpicker-with-alpha');
    }
    if (this.options.align === 'right') {
      this.picker.addClass('colorpicker-right');
    }
    if (this.options.inline === true) {
      this.picker.addClass('colorpicker-no-arrow');
    }
    if (this.options.colorSelectors) {
      var colorpicker = this;
      $.each(this.options.colorSelectors, function(name, color) {
        var $btn = $('<i />').css('background-color', color).data('class', name);
        $btn.click(function() {
          colorpicker.setValue($(this).css('background-color'));
        });
        colorpicker.picker.find('.colorpicker-selectors').append($btn);
      });
      this.picker.find('.colorpicker-selectors').show();
    }
    this.picker.on('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.mousedown, this));
    this.picker.appendTo(this.container ? this.container : $('body'));

    // Bind 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] !== 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()) {
        return false;
      }
      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() {
      this.picker.addClass('colorpicker-hidden').removeClass('colorpicker-visible');
      $(window).off('resize.colorpicker', this.reposition);
      $(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);
      this.element.data('color', val);
      return val;
    },
    updateInput: function(val) {
      val = val || this.color.toString(this.format);
      if (this.input !== false) {
        if (this.options.colorSelectors) {
          var color = new Color(val, this.options.colorSelectors);
          var alias = color.toAlias();
          if (typeof this.options.colorSelectors[alias] !== 'undefined') {
            val = alias;
          }
        }
        this.input.prop('value', val);
      }
      return val;
    },
    updatePicker: function(val) {
      if (val !== undefined) {
        this.color = new Color(val, this.options.colorSelectors);
      }
      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.color.toHex(this.color.value.h, 1, 1, 1));
      this.picker.find('.colorpicker-alpha').css('backgroundColor', this.color.toHex());
      this.picker.find('.colorpicker-color, .colorpicker-color div').css('backgroundColor', this.color.toString(this.format));
      return val;
    },
    updateComponent: function(val) {
      val = val || this.color.toString(this.format);
      if (this.component !== false) {
        var icn = this.component.find('i').eq(0);
        if (icn.length > 0) {
          icn.css({
            'backgroundColor': val
          });
        } else {
          this.component.css({
            'backgroundColor': val
          });
        }
      }
      return val;
    },
    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 = new Color(val, this.options.colorSelectors);
      this.update(true);
      this.element.trigger({
        type: 'changeColor',
        color: this.color,
        value: val
      });
    },
    getValue: function(defaultValue) {
      defaultValue = (defaultValue === undefined) ? '#000000' : 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
        $(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 user choose the dynamic format by
      // setting option format to false
      if (this.currentSlider.callTop === 'setAlpha' && this.options.format === false) {

        // 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();
      $(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 = new Color(this.input.val(), this.options.colorSelectors);
        // Change format dynamically
        // Only occurs if user 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 pickerArgs = arguments,
      rv = null;

    var $returnValue = this.each(function() {
      var $this = $(this),
        inst = $this.data('colorpicker'),
        options = ((typeof option === 'object') ? option : {});
      if ((!inst) && (typeof option !== 'string')) {
        $this.data('colorpicker', new Colorpicker(this, options));
      } else {
        if (typeof option === 'string') {
          rv = inst[option].apply(inst, Array.prototype.slice.call(pickerArgs, 1));
        }
      }
    });
    if (option === 'getValue') {
      return rv;
    }
    return $returnValue;
  };

  $.fn.colorpicker.constructor = Colorpicker;

}));