assets/js/colpick.js
/*
colpick Color Picker
Copyright 2013 Jose Vargas. Licensed under GPL license. Based on Stefan Petre's Color Picker www.eyecon.ro, dual licensed under the MIT and GPL licenses
For usage and examples: colpick.com/plugin
*/
(function ($) {
var colpick = function () {
var
tpl = '<div class="colpick"><div class="colpick_color"><div class="colpick_color_overlay1"><div class="colpick_color_overlay2"><div class="colpick_selector_outer"><div class="colpick_selector_inner"></div></div></div></div></div><div class="colpick_hue"><div class="colpick_hue_arrs"><div class="colpick_hue_larr"></div><div class="colpick_hue_rarr"></div></div></div><div class="colpick_new_color"></div><div class="colpick_current_color"></div><div class="colpick_hex_field"><div class="colpick_field_letter">#</div><input type="text" maxlength="6" size="6" /></div><div class="colpick_rgb_r colpick_field"><div class="colpick_field_letter">R</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_rgb_g colpick_field"><div class="colpick_field_letter">G</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_rgb_b colpick_field"><div class="colpick_field_letter">B</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_h colpick_field"><div class="colpick_field_letter">H</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_s colpick_field"><div class="colpick_field_letter">S</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_hsb_b colpick_field"><div class="colpick_field_letter">B</div><input type="text" maxlength="3" size="3" /><div class="colpick_field_arrs"><div class="colpick_field_uarr"></div><div class="colpick_field_darr"></div></div></div><div class="colpick_submit"></div></div>',
defaults = {
showEvent: 'click',
onShow: function () {
},
onBeforeShow: function () {
},
onHide: function () {
},
onChange: function () {
},
onSubmit: function () {
},
colorScheme: 'light',
color: '3289c7',
livePreview: true,
flat: false,
layout: 'full',
submit: 1,
submitText: 'OK',
height: 156
},
//Fill the inputs of the plugin
fillRGBFields = function (hsb, cal) {
var rgb = hsbToRgb(hsb);
$(cal).data('colpick').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('colpick').fields
.eq(4).val(Math.round(hsb.h)).end()
.eq(5).val(Math.round(hsb.s)).end()
.eq(6).val(Math.round(hsb.b)).end();
},
fillHexFields = function (hsb, cal) {
$(cal).data('colpick').fields.eq(0).val(hsbToHex(hsb));
},
//Set the round selector position
setSelector = function (hsb, cal) {
$(cal).data('colpick').selector.css('backgroundColor', '#' + hsbToHex({h: hsb.h, s: 100, b: 100}));
$(cal).data('colpick').selectorIndic.css({
left: parseInt($(cal).data('colpick').height * hsb.s / 100, 10),
top: parseInt($(cal).data('colpick').height * (100 - hsb.b) / 100, 10)
});
},
//Set the hue selector position
setHue = function (hsb, cal) {
$(cal).data('colpick').hue.css('top', parseInt($(cal).data('colpick').height - $(cal).data('colpick').height * hsb.h / 360, 10));
},
//Set current and new colors
setCurrentColor = function (hsb, cal) {
$(cal).data('colpick').currentColor.css('backgroundColor', '#' + hsbToHex(hsb));
},
setNewColor = function (hsb, cal) {
$(cal).data('colpick').newColor.css('backgroundColor', '#' + hsbToHex(hsb));
},
//Called when the new color is changed
change = function (ev) {
var cal = $(this).parent().parent(), col;
if (this.parentNode.className.indexOf('_hex') > 0) {
cal.data('colpick').color = col = hexToHsb(fixHex(this.value));
fillRGBFields(col, cal.get(0));
fillHSBFields(col, cal.get(0));
} else if (this.parentNode.className.indexOf('_hsb') > 0) {
cal.data('colpick').color = col = fixHSB({
h: parseInt(cal.data('colpick').fields.eq(4).val(), 10),
s: parseInt(cal.data('colpick').fields.eq(5).val(), 10),
b: parseInt(cal.data('colpick').fields.eq(6).val(), 10)
});
fillRGBFields(col, cal.get(0));
fillHexFields(col, cal.get(0));
} else {
cal.data('colpick').color = col = rgbToHsb(fixRGB({
r: parseInt(cal.data('colpick').fields.eq(1).val(), 10),
g: parseInt(cal.data('colpick').fields.eq(2).val(), 10),
b: parseInt(cal.data('colpick').fields.eq(3).val(), 10)
}));
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('colpick').onChange.apply(cal.parent(), [col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el, 0]);
},
//Change style on blur and on focus of inputs
blur = function (ev) {
$(this).parent().removeClass('colpick_focus');
},
focus = function () {
$(this).parent().parent().data('colpick').fields.parent().removeClass('colpick_focus');
$(this).parent().addClass('colpick_focus');
},
//Increment/decrement arrows functions
downIncrement = function (ev) {
ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
var field = $(this).parent().find('input').focus();
var current = {
el: $(this).parent().addClass('colpick_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('colpick').livePreview
};
$(document).mouseup(current, upIncrement);
$(document).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('colpick_slider').find('input').focus();
$(document).off('mouseup', upIncrement);
$(document).off('mousemove', moveIncrement);
return false;
},
//Hue slider functions
downHue = function (ev) {
ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
var current = {
cal: $(this).parent(),
y: $(this).offset().top
};
$(document).on('mouseup touchend', current, upHue);
$(document).on('mousemove touchmove', current, moveHue);
var pageY = ((ev.type == 'touchstart') ? ev.originalEvent.changedTouches[0].pageY : ev.pageY );
change.apply(
current.cal.data('colpick')
.fields.eq(4).val(parseInt(360 * (current.cal.data('colpick').height - (pageY - current.y)) / current.cal.data('colpick').height, 10))
.get(0),
[current.cal.data('colpick').livePreview]
);
return false;
},
moveHue = function (ev) {
var pageY = ((ev.type == 'touchmove') ? ev.originalEvent.changedTouches[0].pageY : ev.pageY );
change.apply(
ev.data.cal.data('colpick')
.fields.eq(4).val(parseInt(360 * (ev.data.cal.data('colpick').height - Math.max(0, Math.min(ev.data.cal.data('colpick').height, (pageY - ev.data.y)))) / ev.data.cal.data('colpick').height, 10))
.get(0),
[ev.data.preview]
);
return false;
},
upHue = function (ev) {
fillRGBFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
fillHexFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
$(document).off('mouseup touchend', upHue);
$(document).off('mousemove touchmove', moveHue);
return false;
},
//Color selector functions
downSelector = function (ev) {
ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;
var current = {
cal: $(this).parent(),
pos: $(this).offset()
};
current.preview = current.cal.data('colpick').livePreview;
$(document).on('mouseup touchend', current, upSelector);
$(document).on('mousemove touchmove', current, moveSelector);
var payeX, pageY;
if (ev.type == 'touchstart') {
pageX = ev.originalEvent.changedTouches[0].pageX,
pageY = ev.originalEvent.changedTouches[0].pageY;
} else {
pageX = ev.pageX;
pageY = ev.pageY;
}
change.apply(
current.cal.data('colpick').fields
.eq(6).val(parseInt(100 * (current.cal.data('colpick').height - (pageY - current.pos.top)) / current.cal.data('colpick').height, 10)).end()
.eq(5).val(parseInt(100 * (pageX - current.pos.left) / current.cal.data('colpick').height, 10))
.get(0),
[current.preview]
);
return false;
},
moveSelector = function (ev) {
var payeX, pageY;
if (ev.type == 'touchmove') {
pageX = ev.originalEvent.changedTouches[0].pageX,
pageY = ev.originalEvent.changedTouches[0].pageY;
} else {
pageX = ev.pageX;
pageY = ev.pageY;
}
change.apply(
ev.data.cal.data('colpick').fields
.eq(6).val(parseInt(100 * (ev.data.cal.data('colpick').height - Math.max(0, Math.min(ev.data.cal.data('colpick').height, (pageY - ev.data.pos.top)))) / ev.data.cal.data('colpick').height, 10)).end()
.eq(5).val(parseInt(100 * (Math.max(0, Math.min(ev.data.cal.data('colpick').height, (pageX - ev.data.pos.left)))) / ev.data.cal.data('colpick').height, 10))
.get(0),
[ev.data.preview]
);
return false;
},
upSelector = function (ev) {
fillRGBFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
fillHexFields(ev.data.cal.data('colpick').color, ev.data.cal.get(0));
$(document).off('mouseup touchend', upSelector);
$(document).off('mousemove touchmove', moveSelector);
return false;
},
//Submit button
clickSubmit = function (ev) {
var cal = $(this).parent();
var col = cal.data('colpick').color;
cal.data('colpick').origColor = col;
setCurrentColor(col, cal.get(0));
cal.data('colpick').onSubmit(col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el);
},
//Show/hide the color picker
show = function (ev) {
// Prevent the trigger of any direct parent
ev.stopPropagation();
var cal = $('#' + $(this).data('colpickId'));
cal.data('colpick').onBeforeShow.apply(this, [cal.get(0)]);
var pos = $(this).offset();
var top = pos.top + this.offsetHeight;
var left = pos.left;
var viewPort = getViewport();
var calW = cal.width();
if (left + calW > viewPort.l + viewPort.w) {
left -= calW;
}
cal.css({left: left + 'px', top: top + 'px'});
if (cal.data('colpick').onShow.apply(this, [cal.get(0)]) != false) {
cal.show();
}
//Hide when user clicks outside
$('html').mousedown({cal: cal}, hide);
cal.mousedown(function (ev) {
ev.stopPropagation();
})
},
hide = function (ev) {
if (ev.data.cal.data('colpick').onHide.apply(this, [ev.data.cal.get(0)]) != false) {
ev.data.cal.hide();
}
$('html').off('mousedown', hide);
},
getViewport = function () {
var m = document.compatMode == 'CSS1Compat';
return {
l: window.pageXOffset || (m ? document.documentElement.scrollLeft : document.body.scrollLeft),
w: window.innerWidth || (m ? document.documentElement.clientWidth : document.body.clientWidth)
};
},
//Fix the values if the user enters a negative or high value
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;
},
restoreOriginal = function () {
var cal = $(this).parent();
var col = cal.data('colpick').origColor;
cal.data('colpick').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 = $.extend({}, defaults, opt || {});
//Set color
if (typeof opt.color == 'string') {
opt.color = hexToHsb(opt.color);
} else if (opt.color.r != undefined && opt.color.g != undefined && opt.color.b != undefined) {
opt.color = rgbToHsb(opt.color);
} else if (opt.color.h != undefined && opt.color.s != undefined && opt.color.b != undefined) {
opt.color = fixHSB(opt.color);
} else {
return this;
}
//For each selected DOM element
return this.each(function () {
//If the element does not have an ID
if (!$(this).data('colpickId')) {
var options = $.extend({}, opt);
options.origColor = opt.color;
//Generate and assign a random ID
var id = 'collorpicker_' + parseInt(Math.random() * 1000);
$(this).data('colpickId', id);
//Set the tpl's ID and get the HTML
var cal = $(tpl).attr('id', id);
//Add class according to layout
cal.addClass('colpick_' + options.layout + (options.submit ? '' : ' colpick_' + options.layout + '_ns'));
//Add class if the color scheme is not default
if (options.colorScheme != 'light') {
cal.addClass('colpick_' + options.colorScheme);
}
//Setup submit button
cal.find('div.colpick_submit').html(options.submitText).click(clickSubmit);
//Setup input fields
options.fields = cal.find('input').change(change).blur(blur).focus(focus);
cal.find('div.colpick_field_arrs').mousedown(downIncrement).end().find('div.colpick_current_color').click(restoreOriginal);
//Setup hue selector
options.selector = cal.find('div.colpick_color').on('mousedown touchstart', downSelector);
options.selectorIndic = options.selector.find('div.colpick_selector_outer');
//Store parts of the plugin
options.el = this;
options.hue = cal.find('div.colpick_hue_arrs');
huebar = options.hue.parent();
//Paint the hue bar
var UA = navigator.userAgent.toLowerCase();
var isIE = navigator.appName === 'Microsoft Internet Explorer';
var IEver = isIE ? parseFloat(UA.match(/msie ([0-9]{1,}[\.0-9]{0,})/)[1]) : 0;
var ngIE = ( isIE && IEver < 10 );
var stops = ['#ff0000', '#ff0080', '#ff00ff', '#8000ff', '#0000ff', '#0080ff', '#00ffff', '#00ff80', '#00ff00', '#80ff00', '#ffff00', '#ff8000', '#ff0000'];
if (ngIE) {
var i, div;
for (i = 0; i <= 11; i++) {
div = $('<div></div>').attr('style', 'height:8.333333%; filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=' + stops[i] + ', endColorstr=' + stops[i + 1] + '); -ms-filter: "progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=' + stops[i] + ', endColorstr=' + stops[i + 1] + ')";');
huebar.append(div);
}
} else {
stopList = stops.join(',');
huebar.attr('style', 'background:-webkit-linear-gradient(top,' + stopList + '); background: -o-linear-gradient(top,' + stopList + '); background: -ms-linear-gradient(top,' + stopList + '); background:-moz-linear-gradient(top,' + stopList + '); -webkit-linear-gradient(top,' + stopList + '); background:linear-gradient(to bottom,' + stopList + '); ');
}
cal.find('div.colpick_hue').on('mousedown touchstart', downHue);
options.newColor = cal.find('div.colpick_new_color');
options.currentColor = cal.find('div.colpick_current_color');
//Store options and fill with default color
cal.data('colpick', options);
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));
//Append to body if flat=false, else show in place
if (options.flat) {
cal.appendTo(this).show();
cal.css({
position: 'relative',
display: 'block'
});
} else {
cal.appendTo(document.body);
$(this).on(options.showEvent, show);
cal.css({
position: 'absolute'
});
}
}
});
},
//Shows the picker
showPicker: function () {
return this.each(function () {
if ($(this).data('colpickId')) {
show.apply(this);
}
});
},
//Hides the picker
hidePicker: function () {
return this.each(function () {
if ($(this).data('colpickId')) {
$('#' + $(this).data('colpickId')).hide();
}
});
},
//Sets a color as new and current (default)
setColor: function (col, setCurrent) {
setCurrent = (typeof setCurrent === "undefined") ? 1 : setCurrent;
if (typeof col == 'string') {
col = hexToHsb(col);
} else if (col.r != undefined && col.g != undefined && col.b != undefined) {
col = rgbToHsb(col);
} else if (col.h != undefined && col.s != undefined && col.b != undefined) {
col = fixHSB(col);
} else {
return this;
}
return this.each(function () {
if ($(this).data('colpickId')) {
var cal = $('#' + $(this).data('colpickId'));
cal.data('colpick').color = col;
cal.data('colpick').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));
setNewColor(col, cal.get(0));
cal.data('colpick').onChange.apply(cal.parent(), [col, hsbToHex(col), hsbToRgb(col), cal.data('colpick').el, 1]);
if (setCurrent) {
setCurrentColor(col, cal.get(0));
}
}
});
}
};
}();
//Color space convertions
var 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)};
};
var hexToHsb = function (hex) {
return rgbToHsb(hexToRgb(hex));
};
var 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;
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;
};
var hsbToRgb = function (hsb) {
var rgb = {};
var h = hsb.h;
var s = hsb.s * 255 / 100;
var v = 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)};
};
var 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('');
};
var hsbToHex = function (hsb) {
return rgbToHex(hsbToRgb(hsb));
};
$.fn.extend({
colpick: colpick.init,
colpickHide: colpick.hidePicker,
colpickShow: colpick.showPicker,
colpickSetColor: colpick.setColor
});
$.extend({
colpick: {
rgbToHex: rgbToHex,
rgbToHsb: rgbToHsb,
hsbToHex: hsbToHex,
hsbToRgb: hsbToRgb,
hexToHsb: hexToHsb,
hexToRgb: hexToRgb
}
});
})(jQuery);