/*!

* Bootstrap Colorpicker
* 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
*
* @todo Update DOCS
*/

(function($) {

'use strict';

// Color object
var Color = function(val) {
    this.value = {
        h: 0,
        s: 0,
        b: 0,
        a: 1
    };
    this.origFormat = null; // original string format
    if (val) {
        if (val.toLowerCase !== undefined) {
            this.setColor(val);
        } else if (val.h !== undefined) {
            this.value = val;
        }
    }
};

Color.prototype = {
    constructor: Color,
    _sanitizeNumber: function(val) {
        if (typeof val === 'number') {
            return val;
        }
        if (isNaN(val) || (val === null) || (val === '') || (val === undefined)) {
            return 1;
        }
        if (val.toLowerCase !== undefined) {
            return parseFloat(val);
        }
        return 1;
    },
    //parse a string to HSB
    setColor: function(strVal) {
        strVal = strVal.toLowerCase();
        this.value = this.stringToHSB(strVal) ||  {
            h: 0,
            s: 0,
            b: 0,
            a: 1
        };
    },
    stringToHSB: function(strVal) {
        strVal = strVal.toLowerCase();
        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 = 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 = parseInt((1 - a) * 100, 10) / 100;
    },
    toRGB: function(h, s, v, a) {
        h = h || this.value.h;
        s = s || this.value.s;
        v = v || this.value.b;
        a = a || this.value.a;

        var r, g, b, i, f, p, q, t;
        if (h && s === undefined && v === undefined) {
            s = h.s, v = h.v, h = h.h;
        }
        i = Math.floor(h * 6);
        f = h * 6 - i;
        p = v * (1 - s);
        q = v * (1 - f * s);
        t = v * (1 - (1 - f) * s);
        switch (i % 6) {
            case 0:
                r = v, g = t, b = p;
                break;
            case 1:
                r = q, g = v, b = p;
                break;
            case 2:
                r = p, g = v, b = t;
                break;
            case 3:
                r = p, g = q, b = v;
                break;
            case 4:
                r = t, g = p, b = v;
                break;
            case 5:
                r = v, g = p, b = q;
                break;
        }
        return {
            r: Math.floor(r * 255),
            g: Math.floor(g * 255),
            b: Math.floor(b * 255),
            a: a
        };
    },
    toHex: function(h, s, b, a) {
        var rgb = this.toRGB(h, s, b, a);
        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: H,
            s: S,
            l: L,
            a: a
        };
    },
    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';
        switch (format) {
            case 'rgb':
                {
                    var rgb = this.toRGB();
                    return 'rgb(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ')';
                }
                break;
            case 'rgba':
                {
                    var rgb = this.toRGB();
                    return 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + rgb.a + ')';
                }
                break;
            case 'hsl':
                {
                    var hsl = this.toHSL();
                    return 'hsl(' + Math.round(hsl.h * 360) + ',' + Math.round(hsl.s * 100) + '%,' + Math.round(hsl.l * 100) + '%)';
                }
                break;
            case 'hsla':
                {
                    var hsl = this.toHSL();
                    return 'hsla(' + Math.round(hsl.h * 360) + ',' + Math.round(hsl.s * 100) + '%,' + Math.round(hsl.l * 100) + '%,' + hsl.a + ')';
                }
                break;
            case 'hex':
                {
                    return this.toHex();
                }
                break;
            default:
                {
                    return false;
                }
                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: /#([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
            ];
        }
    }, {
        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]
            ];
        }
    }, {
        //predefined color name
        re: /^([a-z]{3,})$/,
        format: 'alias',
        parse: function(execResult) {
            var hexval = this.colorNameToHex(execResult[0]) ||  '#000000';
            var match = this.stringParsers[0].re.exec(hexval),
                values = match && this.stringParsers[0].parse.apply(this, [match]);
            return values;
        }
    }],
    colorNameToHex: function(name) {
        // 140 predefined colors from the HTML Colors spec
        var 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"
        };

        if (typeof colors[name.toLowerCase()] !== 'undefined') {
            return colors[name.toLowerCase()];
        }
        return false;
    }
};

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>'
};

var Colorpicker = function(element, options) {
    this.element = $(element).addClass('colorpicker-element');
    this.options = $.extend({}, 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.format = this.options.format !== false ? this.options.format : this.color.origFormat;

    // Setup picker
    this.picker = $(this.options.template);
    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.picker.addClass('colorpicker-with-alpha');
    }
    this.picker.on('mousedown.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)
        });
        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)
        });
    }
    this.update();

    $($.proxy(function() {
        this.element.trigger('create');
    }, this));
};

Colorpicker.version = '2.0.0-beta';

Colorpicker.Color = Color;

Colorpicker.prototype = {
    constructor: Colorpicker,
    destroy: function() {
        this.picker.remove();
        this.element.removeData('colorpicker').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) {
            return false;
        }
        var offset = this.component ? this.component.offset() : this.element.offset();
        this.picker.css({
            top: offset.top + (this.component ? this.component.outerHeight() : this.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 (!this.hasInput() && e) {
            if (e.stopPropagation && e.preventDefault) {
                e.stopPropagation();
                e.preventDefault();
            }
        }
        if (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) {
            this.input.prop('value', val);
        }
        return val;
    },
    updatePicker: function(val) {
        if (val !== undefined) {
            this.color = new Color(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.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 = this.updateComponent();
        if ((this.getValue(false) !== false) || (force === true)) {
            // Update input/data only if the current value is not blank
            this.updateInput(val);
            this.updateData(val);
        }
        this.updatePicker();
        return val;

    },
    setValue: function(val) { // set color manually
        this.color = new Color(val);
        this.update();
        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);
            return true;
        }
        return false;
    },
    enable: function() {
        if (this.hasInput()) {
            this.input.prop('disabled', false);
            return true;
        }
        return false;
    },
    currentSlider: null,
    mousePointer: {
        left: 0,
        top: 0
    },
    mousedown: function(e) {
        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),
                'mouseup.colorpicker': $.proxy(this.mouseup, this)
            }).trigger('mousemove');
        }
        return false;
    },
    mousemove: function(e) {
        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 / 100);
        }
        if (this.currentSlider.callTop) {
            this.color[this.currentSlider.callTop].call(this.color, top / 100);
        }
        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,
            'mouseup.colorpicker': this.mouseup
        });
        return false;
    },
    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 {
            var val = this.input.val();
            this.color = new Color(val);
            if (this.getValue(false) !== false) {
                this.updateData();
                this.updateComponent();
                this.updatePicker();
            }
        }
        this.element.trigger({
            type: 'changeColor',
            color: this.color,
            value: val
        });
    }
};

$.colorpicker = Colorpicker;

$.fn.colorpicker = function(option) {
    return 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') {
                inst[option].apply(inst, Array.prototype.slice.call(arguments, 1));
            }
        }
    });
};

$.fn.colorpicker.constructor = Colorpicker;

})(window.jQuery);