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maniator/ColorPicker.js

Created January 4, 2012 15:22
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ColorPicker jQuery Extension
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ColorPicker.js
/**
*
* Color picker
* Author: Stefan Petre www.eyecon.ro
*
* Dual licensed under the MIT and GPL licenses
*
*/
(function ($) {
var ColorPicker = function () {
var
ids = {},
inAction,
charMin = 65,
visible,
tpl = '<div class="colorpicker"><div class="colorpicker_color"><div><div></div></div></div><div class="colorpicker_hue"><div></div></div><div class="colorpicker_new_color"></div><div class="colorpicker_current_color"></div><div class="colorpicker_hex"><input type="text" maxlength="6" size="6" /></div><div class="colorpicker_rgb_r colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_rgb_g colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_rgb_b colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_h colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_s colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_b colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_submit"></div></div>',
defaults = {
eventName: 'click',
onShow: function () {},
onBeforeShow: function(){},
onHide: function () {},
onChange: function () {},
onSubmit: function () {},
color: 'ff0000',
livePreview: true,
flat: false
},
fillRGBFields = function (hsb, cal) {
var rgb = HSBToRGB(hsb);
$(cal).data('colorpicker').fields
.eq(1).val(rgb.r).end()
.eq(2).val(rgb.g).end()
.eq(3).val(rgb.b).end();
},
fillHSBFields = function (hsb, cal) {
$(cal).data('colorpicker').fields
.eq(4).val(hsb.h).end()
.eq(5).val(hsb.s).end()
.eq(6).val(hsb.b).end();
},
fillHexFields = function (hsb, cal) {
$(cal).data('colorpicker').fields
.eq(0).val(HSBToHex(hsb)).end();
},
setSelector = function (hsb, cal) {
$(cal).data('colorpicker').selector.css('backgroundColor', '#' + HSBToHex({h: hsb.h, s: 100, b: 100}));
$(cal).data('colorpicker').selectorIndic.css({
left: parseInt(150 * hsb.s/100, 10),
top: parseInt(150 * (100-hsb.b)/100, 10)
});
},
setHue = function (hsb, cal) {
$(cal).data('colorpicker').hue.css('top', parseInt(150 - 150 * hsb.h/360, 10));
},
setCurrentColor = function (hsb, cal) {
$(cal).data('colorpicker').currentColor.css('backgroundColor', '#' + HSBToHex(hsb));
},
setNewColor = function (hsb, cal) {
$(cal).data('colorpicker').newColor.css('backgroundColor', '#' + HSBToHex(hsb));
},
keyDown = function (ev) {
var pressedKey = ev.charCode || ev.keyCode || -1;
if ((pressedKey > charMin && pressedKey <= 90) || pressedKey == 32) {
return false;
}
var cal = $(this).parent().parent();
if (cal.data('colorpicker').livePreview === true) {
change.apply(this);
}
},
change = function (ev) {
var cal = $(this).parent().parent(), col;
if (this.parentNode.className.indexOf('_hex') > 0) {
cal.data('colorpicker').color = col = HexToHSB(fixHex(this.value));
} else if (this.parentNode.className.indexOf('_hsb') > 0) {
cal.data('colorpicker').color = col = fixHSB({
h: parseInt(cal.data('colorpicker').fields.eq(4).val(), 10),
s: parseInt(cal.data('colorpicker').fields.eq(5).val(), 10),
b: parseInt(cal.data('colorpicker').fields.eq(6).val(), 10)
});
} else {
cal.data('colorpicker').color = col = RGBToHSB(fixRGB({
r: parseInt(cal.data('colorpicker').fields.eq(1).val(), 10),
g: parseInt(cal.data('colorpicker').fields.eq(2).val(), 10),
b: parseInt(cal.data('colorpicker').fields.eq(3).val(), 10)
}));
}
if (ev) {
fillRGBFields(col, cal.get(0));
fillHexFields(col, cal.get(0));
fillHSBFields(col, cal.get(0));
}
setSelector(col, cal.get(0));
setHue(col, cal.get(0));
setNewColor(col, cal.get(0));
cal.data('colorpicker').onChange.apply(cal, [col, HSBToHex(col), HSBToRGB(col)]);
},
blur = function (ev) {
var cal = $(this).parent().parent();
cal.data('colorpicker').fields.parent().removeClass('colorpicker_focus');
},
focus = function () {
charMin = this.parentNode.className.indexOf('_hex') > 0 ? 70 : 65;
$(this).parent().parent().data('colorpicker').fields.parent().removeClass('colorpicker_focus');
$(this).parent().addClass('colorpicker_focus');
},
downIncrement = function (ev) {
var field = $(this).parent().find('input').focus();
var current = {
el: $(this).parent().addClass('colorpicker_slider'),
max: this.parentNode.className.indexOf('_hsb_h') > 0 ? 360 : (this.parentNode.className.indexOf('_hsb') > 0 ? 100 : 255),
y: ev.pageY,
field: field,
val: parseInt(field.val(), 10),
preview: $(this).parent().parent().data('colorpicker').livePreview
};
$(document).bind('mouseup', current, upIncrement);
$(document).bind('mousemove', current, moveIncrement);
},
moveIncrement = function (ev) {
ev.data.field.val(Math.max(0, Math.min(ev.data.max, parseInt(ev.data.val + ev.pageY - ev.data.y, 10))));
if (ev.data.preview) {
change.apply(ev.data.field.get(0), [true]);
}
return false;
},
upIncrement = function (ev) {
change.apply(ev.data.field.get(0), [true]);
ev.data.el.removeClass('colorpicker_slider').find('input').focus();
$(document).unbind('mouseup', upIncrement);
$(document).unbind('mousemove', moveIncrement);
return false;
},
downHue = function (ev) {
var current = {
cal: $(this).parent(),
y: $(this).offset().top
};
current.preview = current.cal.data('colorpicker').livePreview;
$(document).bind('mouseup', current, upHue);
$(document).bind('mousemove', current, moveHue);
},
moveHue = function (ev) {
change.apply(
ev.data.cal.data('colorpicker')
.fields
.eq(4)
.val(parseInt(360*(150 - Math.max(0,Math.min(150,(ev.pageY - ev.data.y))))/150, 10))
.get(0),
[ev.data.preview]
);
return false;
},
upHue = function (ev) {
fillRGBFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
fillHexFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
$(document).unbind('mouseup', upHue);
$(document).unbind('mousemove', moveHue);
return false;
},
downSelector = function (ev) {
var current = {
cal: $(this).parent(),
pos: $(this).offset()
};
current.preview = current.cal.data('colorpicker').livePreview;
$(document).bind('mouseup', current, upSelector);
$(document).bind('mousemove', current, moveSelector);
},
moveSelector = function (ev) {
change.apply(
ev.data.cal.data('colorpicker')
.fields
.eq(6)
.val(parseInt(100*(150 - Math.max(0,Math.min(150,(ev.pageY - ev.data.pos.top))))/150, 10))
.end()
.eq(5)
.val(parseInt(100*(Math.max(0,Math.min(150,(ev.pageX - ev.data.pos.left))))/150, 10))
.get(0),
[ev.data.preview]
);
return false;
},
upSelector = function (ev) {
fillRGBFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
fillHexFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
$(document).unbind('mouseup', upSelector);
$(document).unbind('mousemove', moveSelector);
return false;
},
enterSubmit = function (ev) {
$(this).addClass('colorpicker_focus');
},
leaveSubmit = function (ev) {
$(this).removeClass('colorpicker_focus');
},
clickSubmit = function (ev) {
var cal = $(this).parent();
var col = cal.data('colorpicker').color;
cal.data('colorpicker').origColor = col;
setCurrentColor(col, cal.get(0));
cal.data('colorpicker').onSubmit(col, HSBToHex(col), HSBToRGB(col), cal.data('colorpicker').el);
},
show = function (ev) {
var cal = $('#' + $(this).data('colorpickerId'));
cal.data('colorpicker').onBeforeShow.apply(this, [cal.get(0)]);
var pos = $(this).offset();
var viewPort = getViewport();
var top = pos.top + this.offsetHeight;
var left = pos.left;
if (top + 176 > viewPort.t + viewPort.h) {
top -= this.offsetHeight + 176;
}
if (left + 356 > viewPort.l + viewPort.w) {
left -= 356;
}
cal.css({left: left + 'px', top: top + 'px'});
if (cal.data('colorpicker').onShow.apply(this, [cal.get(0)]) != false) {
cal.show();
}
$(document).bind('mousedown', {cal: cal}, hide);
return false;
},
hide = function (ev) {
if (!isChildOf(ev.data.cal.get(0), ev.target, ev.data.cal.get(0))) {
if (ev.data.cal.data('colorpicker').onHide.apply(this, [ev.data.cal.get(0)]) != false) {
ev.data.cal.hide();
}
$(document).unbind('mousedown', hide);
}
},
isChildOf = function(parentEl, el, container) {
if (parentEl == el) {
return true;
}
if (parentEl.contains) {
return parentEl.contains(el);
}
if ( parentEl.compareDocumentPosition ) {
return !!(parentEl.compareDocumentPosition(el) & 16);
}
var prEl = el.parentNode;
while(prEl && prEl != container) {
if (prEl == parentEl)
return true;
prEl = prEl.parentNode;
}
return false;
},
getViewport = function () {
var m = document.compatMode == 'CSS1Compat';
return {
l : window.pageXOffset || (m ? document.documentElement.scrollLeft : document.body.scrollLeft),
t : window.pageYOffset || (m ? document.documentElement.scrollTop : document.body.scrollTop),
w : window.innerWidth || (m ? document.documentElement.clientWidth : document.body.clientWidth),
h : window.innerHeight || (m ? document.documentElement.clientHeight : document.body.clientHeight)
};
},
fixHSB = function (hsb) {
return {
h: Math.min(360, Math.max(0, hsb.h)),
s: Math.min(100, Math.max(0, hsb.s)),
b: Math.min(100, Math.max(0, hsb.b))
};
},
fixRGB = function (rgb) {
return {
r: Math.min(255, Math.max(0, rgb.r)),
g: Math.min(255, Math.max(0, rgb.g)),
b: Math.min(255, Math.max(0, rgb.b))
};
},
fixHex = function (hex) {
var len = 6 - hex.length;
if (len > 0) {
var o = [];
for (var i=0; i<len; i++) {
o.push('0');
}
o.push(hex);
hex = o.join('');
}
return hex;
},
HexToRGB = function (hex) {
var hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
return {r: hex >> 16, g: (hex & 0x00FF00) >> 8, b: (hex & 0x0000FF)};
},
HexToHSB = function (hex) {
return RGBToHSB(HexToRGB(hex));
},
RGBToHSB = function (rgb) {
var hsb = {
h: 0,
s: 0,
b: 0
};
var min = Math.min(rgb.r, rgb.g, rgb.b);
var max = Math.max(rgb.r, rgb.g, rgb.b);
var delta = max - min;
hsb.b = max;
if (max != 0) {
}
hsb.s = max != 0 ? 255 * delta / max : 0;
if (hsb.s != 0) {
if (rgb.r == max) {
hsb.h = (rgb.g - rgb.b) / delta;
} else if (rgb.g == max) {
hsb.h = 2 + (rgb.b - rgb.r) / delta;
} else {
hsb.h = 4 + (rgb.r - rgb.g) / delta;
}
} else {
hsb.h = -1;
}
hsb.h *= 60;
if (hsb.h < 0) {
hsb.h += 360;
}
hsb.s *= 100/255;
hsb.b *= 100/255;
return hsb;
},
HSBToRGB = function (hsb) {
var rgb = {};
var h = Math.round(hsb.h);
var s = Math.round(hsb.s*255/100);
var v = Math.round(hsb.b*255/100);
if(s == 0) {
rgb.r = rgb.g = rgb.b = v;
} else {
var t1 = v;
var t2 = (255-s)*v/255;
var t3 = (t1-t2)*(h%60)/60;
if(h==360) h = 0;
if(h<60) {rgb.r=t1; rgb.b=t2; rgb.g=t2+t3}
else if(h<120) {rgb.g=t1; rgb.b=t2; rgb.r=t1-t3}
else if(h<180) {rgb.g=t1; rgb.r=t2; rgb.b=t2+t3}
else if(h<240) {rgb.b=t1; rgb.r=t2; rgb.g=t1-t3}
else if(h<300) {rgb.b=t1; rgb.g=t2; rgb.r=t2+t3}
else if(h<360) {rgb.r=t1; rgb.g=t2; rgb.b=t1-t3}
else {rgb.r=0; rgb.g=0; rgb.b=0}
}
return {r:Math.round(rgb.r), g:Math.round(rgb.g), b:Math.round(rgb.b)};
},
RGBToHex = function (rgb) {
var hex = [
rgb.r.toString(16),
rgb.g.toString(16),
rgb.b.toString(16)
];
$.each(hex, function (nr, val) {
if (val.length == 1) {
hex[nr] = '0' + val;
}
});
return hex.join('');
},
HSBToHex = function (hsb) {
return RGBToHex(HSBToRGB(hsb));
},
restoreOriginal = function () {
var cal = $(this).parent();
var col = cal.data('colorpicker').origColor;
cal.data('colorpicker').color = col;
fillRGBFields(col, cal.get(0));
fillHexFields(col, cal.get(0));
fillHSBFields(col, cal.get(0));
setSelector(col, cal.get(0));
setHue(col, cal.get(0));
setNewColor(col, cal.get(0));
};
return {
init: function (opt) {
opt = $.extend({}, defaults, opt||{});
if (typeof opt.color == 'string') {
opt.color = HexToHSB(opt.color);
} else if (opt.color.r != undefined && opt.color.g != undefined && opt.color.b != undefined) {
opt.color = RGBToHSB(opt.color);
} else if (opt.color.h != undefined && opt.color.s != undefined && opt.color.b != undefined) {
opt.color = fixHSB(opt.color);
} else {
return this;
}
return this.each(function () {
if (!$(this).data('colorpickerId')) {
var options = $.extend({}, opt);
options.origColor = opt.color;
var id = 'collorpicker_' + parseInt(Math.random() * 1000);
$(this).data('colorpickerId', id);
var cal = $(tpl).attr('id', id);
if (options.flat) {
cal.appendTo(this).show();
} else {
cal.appendTo(document.body);
}
options.fields = cal
.find('input')
.bind('keyup', keyDown)
.bind('change', change)
.bind('blur', blur)
.bind('focus', focus);
cal
.find('span').bind('mousedown', downIncrement).end()
.find('>div.colorpicker_current_color').bind('click', restoreOriginal);
options.selector = cal.find('div.colorpicker_color').bind('mousedown', downSelector);
options.selectorIndic = options.selector.find('div div');
options.el = this;
options.hue = cal.find('div.colorpicker_hue div');
cal.find('div.colorpicker_hue').bind('mousedown', downHue);
options.newColor = cal.find('div.colorpicker_new_color');
options.currentColor = cal.find('div.colorpicker_current_color');
cal.data('colorpicker', options);
cal.find('div.colorpicker_submit')
.bind('mouseenter', enterSubmit)
.bind('mouseleave', leaveSubmit)
.bind('click', clickSubmit);
fillRGBFields(options.color, cal.get(0));
fillHSBFields(options.color, cal.get(0));
fillHexFields(options.color, cal.get(0));
setHue(options.color, cal.get(0));
setSelector(options.color, cal.get(0));
setCurrentColor(options.color, cal.get(0));
setNewColor(options.color, cal.get(0));
if (options.flat) {
cal.css({
position: 'relative',
display: 'block'
});
} else {
$(this).bind(options.eventName, show);
}
}
});
},
showPicker: function() {
return this.each( function () {
if ($(this).data('colorpickerId')) {
show.apply(this);
}
});
},
hidePicker: function() {
return this.each( function () {
if ($(this).data('colorpickerId')) {
$('#' + $(this).data('colorpickerId')).hide();
}
});
},
setColor: function(col) {
if (typeof col == 'string') {
col = HexToHSB(col);
} else if (col.r != undefined && col.g != undefined && col.b != undefined) {
col = RGBToHSB(col);
} else if (col.h != undefined && col.s != undefined && col.b != undefined) {
col = fixHSB(col);
} else {
return this;
}
return this.each(function(){
if ($(this).data('colorpickerId')) {
var cal = $('#' + $(this).data('colorpickerId'));
cal.data('colorpicker').color = col;
cal.data('colorpicker').origColor = col;
fillRGBFields(col, cal.get(0));
fillHSBFields(col, cal.get(0));
fillHexFields(col, cal.get(0));
setHue(col, cal.get(0));
setSelector(col, cal.get(0));
setCurrentColor(col, cal.get(0));
setNewColor(col, cal.get(0));
}
});
}
};
}();
$.fn.extend({
ColorPicker: ColorPicker.init,
ColorPickerHide: ColorPicker.hidePicker,
ColorPickerShow: ColorPicker.showPicker,
ColorPickerSetColor: ColorPicker.setColor
});
})(jQuery)
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