/* =========================================================
* bootstrap-colorpicker.js
* http://www.eyecon.ro/bootstrap-colorpicker
* =========================================================
* Copyright 2012 Stefan Petre
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================================================= */
!function( $ ) {
// Color object
var Color = function(val) {
this.value = {
h: 1,
s: 1,
b: 1,
a: 1
};
this.setColor(val);
};
Color.prototype = {
constructor: Color,
//parse a string to HSB
setColor: function(val){
val = val.toLowerCase();
var that = this;
$.each( CPGlobal.stringParsers, function( i, parser ) {
var match = parser.re.exec( val ),
values = match && parser.parse( match ),
space = parser.space||'rgba';
if ( values ) {
if (space === 'hsla') {
that.value = CPGlobal.RGBtoHSB.apply(null, CPGlobal.HSLtoRGB.apply(null, values));
} else {
that.value = CPGlobal.RGBtoHSB.apply(null, values);
}
return false;
}
});
},
setHue: function(h) {
this.value.h = 1- h;
},
setSaturation: function(s) {
this.value.s = s;
},
setLightness: function(b) {
this.value.b = 1- b;
},
setAlpha: function(a) {
this.value.a = parseInt((1 - a)*100, 10)/100;
},
// HSBtoRGB from RaphaelJS
// https://github.com/DmitryBaranovskiy/raphael/
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);
return '#'+((1 << 24) | (parseInt(rgb.r) << 16) | (parseInt(rgb.g) << 8) | parseInt(rgb.b)).toString(16).substr(1);
},
toHSL: function(h, s, b, a){
if (!h) {
h = this.value.h;
s = this.value.s;
b = this.value.b;
}
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||this.value.a
};
}
};
// Picker object
var Colorpicker = function(element, options){
this.element = $(element);
var format = options.format||this.element.data('color-format')||'hex';
this.format = CPGlobal.translateFormats[format];
this.isInput = this.element.is('input');
this.component = this.element.is('.color') ? this.element.find('.add-on') : false;
this.picker = $(CPGlobal.template)
.appendTo('body')
.on('mousedown', $.proxy(this.mousedown, this));
if (this.isInput) {
this.element.on({
'focus': $.proxy(this.show, this),
'keyup': $.proxy(this.update, this)
});
} else if (this.component){
this.component.on({
'click': $.proxy(this.show, this)
});
} else {
this.element.on({
'click': $.proxy(this.show, this)
});
}
if (format === 'rgba' || format === 'hsla') {
this.picker.addClass('alpha');
this.alpha = this.picker.find('.colorpicker-alpha')[0].style;
}
if (this.component){
this.picker.find('.colorpicker-color').hide();
this.preview = this.element.find('i')[0].style;
} else {
this.preview = this.picker.find('div:last')[0].style;
}
this.base = this.picker.find('div:first')[0].style;
this.update();
};
Colorpicker.prototype = {
constructor: Colorpicker,
show: function(e) {
this.picker.show();
this.height = this.component ? this.component.outerHeight() : this.element.outerHeight();
this.place();
$(window).on('resize', $.proxy(this.place, this));
if (!this.isInput) {
if (e) {
e.stopPropagation();
e.preventDefault();
}
}
$(document).on({
'mousedown': $.proxy(this.hide, this)
});
this.element.trigger({
type: 'show',
color: this.color
});
},
update: function(){
this.color = new Color(this.isInput ? this.element.prop('value') : this.element.data('color'));
this.picker.find('i')
.eq(0).css({left: this.color.value.s*100, top: 100 - this.color.value.b*100}).end()
.eq(1).css('top', 100 * (1 - this.color.value.h)).end()
.eq(2).css('top', 100 * (1 - this.color.value.a));
this.previewColor();
},
setValue: function(newColor) {
this.color = new Color(newColor);
this.picker.find('i')
.eq(0).css({left: this.color.value.s*100, top: 100 - this.color.value.b*100}).end()
.eq(1).css('top', 100 * (1 - this.color.value.h)).end()
.eq(2).css('top', 100 * (1 - this.color.value.a));
this.previewColor();
this.element.trigger({
type: 'changeColor',
color: this.color
});
},
hide: function(){
this.picker.hide();
$(window).off('resize', this.place);
if (!this.isInput) {
$(document).off({
'mousedown': this.hide
});
if (this.component){
this.element.find('input').prop('value', this.format.call(this));
}
this.element.data('color', this.format.call(this));
} else {
this.element.prop('value', this.format.call(this));
}
this.element.trigger({
type: 'hide',
color: this.color
});
},
place: function(){
var offset = this.component ? this.component.offset() : this.element.offset();
this.picker.css({
top: offset.top + this.height,
left: offset.left
});
},
//preview color change
previewColor: function(){
try {
this.preview.backgroundColor = this.format.call(this);
} catch(e) {
this.preview.backgroundColor = this.color.toHex();
}
//set the color for brightness/saturation slider
this.base.backgroundColor = this.color.toHex(this.color.value.h, 1, 1, 1);
//set te color for alpha slider
if (this.alpha) {
this.alpha.backgroundColor = this.color.toHex();
}
},
pointer: null,
slider: null,
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');
if (!zone.is('.colorpicker')) {
if (zone.is('.colorpicker-saturation')) {
this.slider = $.extend({}, CPGlobal.sliders.saturation);
}
else if (zone.is('.colorpicker-hue')) {
this.slider = $.extend({}, CPGlobal.sliders.hue);
}
else if (zone.is('.colorpicker-alpha')) {
this.slider = $.extend({}, CPGlobal.sliders.alpha);
} else {
return false;
}
var offset = zone.offset();
//reference to knob's style
this.slider.knob = zone.find('i')[0].style;
this.slider.left = e.pageX - offset.left;
this.slider.top = e.pageY - offset.top;
this.pointer = {
left: e.pageX,
top: e.pageY
};
//trigger mousemove to move the knob to the current position
$(document).on({
mousemove: $.proxy(this.mousemove, this),
mouseup: $.proxy(this.mouseup, this)
}).trigger('mousemove');
}
return false;
},
mousemove: function(e){
e.stopPropagation();
e.preventDefault();
var left = Math.max(
0,
Math.min(
this.slider.maxLeft,
this.slider.left + ((e.pageX||this.pointer.left) - this.pointer.left)
)
);
var top = Math.max(
0,
Math.min(
this.slider.maxTop,
this.slider.top + ((e.pageY||this.pointer.top) - this.pointer.top)
)
);
this.slider.knob.left = left + 'px';
this.slider.knob.top = top + 'px';
if (this.slider.callLeft) {
this.color[this.slider.callLeft].call(this.color, left/100);
}
if (this.slider.callTop) {
this.color[this.slider.callTop].call(this.color, top/100);
}
this.previewColor();
this.element.trigger({
type: 'changeColor',
color: this.color
});
return false;
},
mouseup: function(e){
e.stopPropagation();
e.preventDefault();
$(document).off({
mousemove: this.mousemove,
mouseup: this.mouseup
});
return false;
}
}
$.fn.colorpicker = function ( option ) {
return this.each(function () {
var $this = $(this),
data = $this.data('colorpicker'),
options = typeof option === 'object' && option;
if (!data) {
$this.data('colorpicker', (data = new Colorpicker(this, $.extend({}, $.fn.colorpicker.defaults,options))));
}
if (typeof option === 'string') data[option]();
});
};
$.fn.colorpicker.defaults = {
};
$.fn.colorpicker.Constructor = Colorpicker;
var CPGlobal = {
// translate a format from Color object to a string
translateFormats: {
'rgb': function(){
var rgb = this.color.toRGB();
return 'rgb('+rgb.r+','+rgb.g+','+rgb.b+')';
},
'rgba': function(){
var rgb = this.color.toRGB();
return 'rgba('+rgb.r+','+rgb.g+','+rgb.b+','+rgb.a+')';
},
'hsl': function(){
var hsl = this.color.toHSL();
return 'hsl('+Math.round(hsl.h*360)+','+Math.round(hsl.s*100)+'%,'+Math.round(hsl.l*100)+'%)';
},
'hsla': function(){
var hsl = this.color.toHSL();
return 'hsla('+Math.round(hsl.h*360)+','+Math.round(hsl.s*100)+'%,'+Math.round(hsl.l*100)+'%,'+hsl.a+')';
},
'hex': function(){
return this.color.toHex();
}
},
sliders: {
saturation: {
maxLeft: 100,
maxTop: 100,
callLeft: 'setSaturation',
callTop: 'setLightness'
},
hue: {
maxLeft: 0,
maxTop: 100,
callLeft: false,
callTop: 'setHue'
},
alpha: {
maxLeft: 0,
maxTop: 100,
callLeft: false,
callTop: 'setAlpha'
}
},
// HSBtoRGB from RaphaelJS
// https://github.com/DmitryBaranovskiy/raphael/
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: H||1, s: S, b: V, a: a||1};
},
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(CPGlobal.HueToRGB(p, q, tr) * 255);
var g = Math.round(CPGlobal.HueToRGB(p, q, tg) * 255);
var b = Math.round(CPGlobal.HueToRGB(p, q, tb) * 255);
return [r, g, b, a||1];
},
// 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: /rgba?\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*(?:,\s*(\d+(?:\.\d+)?)\s*)?\)/,
parse: function( execResult ) {
return [
execResult[ 1 ],
execResult[ 2 ],
execResult[ 3 ],
execResult[ 4 ]
];
}
}, {
re: /rgba?\(\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*(?:,\s*(\d+(?:\.\d+)?)\s*)?\)/,
parse: function( execResult ) {
return [
2.55 * execResult[1],
2.55 * execResult[2],
2.55 * execResult[3],
execResult[ 4 ]
];
}
}, {
re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/,
parse: function( execResult ) {
return [
parseInt( execResult[ 1 ], 16 ),
parseInt( execResult[ 2 ], 16 ),
parseInt( execResult[ 3 ], 16 )
];
}
}, {
re: /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/,
parse: function( execResult ) {
return [
parseInt( execResult[ 1 ] + execResult[ 1 ], 16 ),
parseInt( execResult[ 2 ] + execResult[ 2 ], 16 ),
parseInt( execResult[ 3 ] + execResult[ 3 ], 16 )
];
}
}, {
re: /hsla?\(\s*(\d+(?:\.\d+)?)\s*,\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*(?:,\s*(\d+(?:\.\d+)?)\s*)?\)/,
space: 'hsla',
parse: function( execResult ) {
return [
execResult[1]/360,
execResult[2] / 100,
execResult[3] / 100,
execResult[4]
];
}
}
],
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>'
};
}( window.jQuery )
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