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(function (root, factory) { |
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if (typeof exports === 'object') { |
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module.exports = factory(root, require('jquery'), require('colors')); |
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} else if (typeof define === 'function' && define.amd) { |
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define(['jquery', 'colors'], function (jQuery, Colors) { |
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return factory(root, jQuery, Colors); |
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}); |
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} else { |
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factory(root, root.jQuery, root.Colors); |
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} |
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}(this, function(window, $, Colors, undefined){ |
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'use strict'; |
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|
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var $document = $(document), |
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_instance = $(), |
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_colorPicker, |
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_color, |
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_options, |
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|
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_$trigger, _$UI, |
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_$z_slider, _$xy_slider, |
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_$xy_cursor, _$z_cursor , _$alpha , _$alpha_cursor, |
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|
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_pointermove = 'touchmove.tcp mousemove.tcp pointermove.tcp', |
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_pointerdown = 'touchstart.tcp mousedown.tcp pointerdown.tcp', |
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_pointerup = 'touchend.tcp mouseup.tcp pointerup.tcp', |
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_GPU = false, |
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_animate = window.requestAnimationFrame || |
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window.webkitRequestAnimationFrame || function(cb){cb()}, |
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_html = '<div class="cp-color-picker"><div class="cp-z-slider"><div c' + |
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'lass="cp-z-cursor"></div></div><div class="cp-xy-slider"><div cl' + |
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'ass="cp-white"></div><div class="cp-xy-cursor"></div></div><div ' + |
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'class="cp-alpha"><div class="cp-alpha-cursor"></div></div></div>', |
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// 'grunt-contrib-uglify' puts all this back to one single string... |
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_css = '.cp-color-picker{position:absolute;overflow:hidden;padding:6p' + |
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'x 6px 0;background-color:#444;color:#bbb;font-family:Arial,Helve' + |
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'tica,sans-serif;font-size:12px;font-weight:400;cursor:default;bo' + |
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'rder-radius:5px}.cp-color-picker>div{position:relative;overflow:' + |
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'hidden}.cp-xy-slider{float:left;height:128px;width:128px;margin-' + |
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'bottom:6px;background:linear-gradient(to right,#FFF,rgba(255,255' + |
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',255,0))}.cp-white{height:100%;width:100%;background:linear-grad' + |
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'ient(rgba(0,0,0,0),#000)}.cp-xy-cursor{position:absolute;top:0;w' + |
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'idth:10px;height:10px;margin:-5px;border:1px solid #fff;border-r' + |
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'adius:100%;box-sizing:border-box}.cp-z-slider{float:right;margin' + |
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'-left:6px;height:128px;width:20px;background:linear-gradient(red' + |
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' 0,#f0f 17%,#00f 33%,#0ff 50%,#0f0 67%,#ff0 83%,red 100%)}.cp-z-' + |
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'cursor{position:absolute;margin-top:-4px;width:100%;border:4px s' + |
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'olid #fff;border-color:transparent #fff;box-sizing:border-box}.c' + |
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'p-alpha{clear:both;width:100%;height:16px;margin:6px 0;backgroun' + |
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'd:linear-gradient(to right,#444,rgba(0,0,0,0))}.cp-alpha-cursor{' + |
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'position:absolute;margin-left:-4px;height:100%;border:4px solid ' + |
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'#fff;border-color:#fff transparent;box-sizing:border-box}', |
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|
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ColorPicker = function(options) { |
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_color = this.color = new Colors(options); |
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_options = _color.options; |
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_colorPicker = this; |
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}; |
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|
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ColorPicker.prototype = { |
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render: preRender, |
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toggle: toggle |
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}; |
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|
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function extractValue(elm) { |
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return elm.value || elm.getAttribute('value') || |
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$(elm).css('background-color') || '#FFF'; |
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} |
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|
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function resolveEventType(event) { |
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event = event.originalEvent && event.originalEvent.touches ? |
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event.originalEvent.touches[0] : event; |
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|
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return event.originalEvent ? event.originalEvent : event; |
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} |
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|
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function findElement($elm) { |
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return $($elm.find(_options.doRender)[0] || $elm[0]); |
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} |
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|
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function toggle(event) { |
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var $this = $(this), |
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position = $this.offset(), |
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$window = $(window), |
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gap = _options.gap; |
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|
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if (event) { |
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_$trigger = findElement($this); |
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_$trigger._colorMode = _$trigger.data('colorMode'); |
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|
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_colorPicker.$trigger = $this; |
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|
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(_$UI || build()).css( |
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_options.positionCallback.call(_colorPicker, $this) || |
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{'left': (_$UI._left = position.left) - |
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((_$UI._left += _$UI._width - |
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($window.scrollLeft() + $window.width())) + gap > 0 ? |
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_$UI._left + gap : 0), |
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'top': (_$UI._top = position.top + $this.outerHeight()) - |
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((_$UI._top += _$UI._height - |
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($window.scrollTop() + $window.height())) + gap > 0 ? |
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_$UI._top + gap : 0) |
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}).show(_options.animationSpeed, function() { |
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if (event === true) { // resize, scroll |
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return; |
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} |
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_$alpha.toggle(!!_options.opacity)._width = _$alpha.width(); |
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_$xy_slider._width = _$xy_slider.width(); |
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_$xy_slider._height = _$xy_slider.height(); |
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_$z_slider._height = _$z_slider.height(); |
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_color.setColor(extractValue(_$trigger[0])); |
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|
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preRender(true); |
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}) |
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.off('.tcp').on(_pointerdown, |
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'.cp-xy-slider,.cp-z-slider,.cp-alpha', pointerdown); |
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} else if (_colorPicker.$trigger) { |
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$(_$UI).hide(_options.animationSpeed, function() { |
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preRender(false); |
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_colorPicker.$trigger = null; |
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}).off('.tcp'); |
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} |
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} |
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|
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function build() { |
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$('head').append('<style type="text/css" id="tinyColorPickerStyles">' + |
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(_options.css || _css) + (_options.cssAddon || '') + '</style>'); |
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|
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return $(_html).css({'margin': _options.margin}) |
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.appendTo('body') |
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.show(0, function() { |
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_colorPicker.$UI = _$UI = $(this); |
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|
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_GPU = _options.GPU && _$UI.css('perspective') !== undefined; |
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_$z_slider = $('.cp-z-slider', this); |
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_$xy_slider = $('.cp-xy-slider', this); |
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_$xy_cursor = $('.cp-xy-cursor', this); |
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_$z_cursor = $('.cp-z-cursor', this); |
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_$alpha = $('.cp-alpha', this); |
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_$alpha_cursor = $('.cp-alpha-cursor', this); |
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_options.buildCallback.call(_colorPicker, _$UI); |
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_$UI.prepend('<div>').children().eq(0).css('width', |
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_$UI.children().eq(0).width()); // stabilizer |
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_$UI._width = this.offsetWidth; |
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_$UI._height = this.offsetHeight; |
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}).hide(); |
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} |
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|
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function pointerdown(e) { |
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var action = this.className |
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.replace(/cp-(.*?)(?:\s*|$)/, '$1').replace('-', '_'); |
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|
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if ((e.button || e.which) > 1) return; |
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|
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e.preventDefault && e.preventDefault(); |
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e.returnValue = false; |
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|
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_$trigger._offset = $(this).offset(); |
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|
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(action = action === 'xy_slider' ? xy_slider : |
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action === 'z_slider' ? z_slider : alpha)(e); |
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preRender(); |
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|
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$document.on(_pointerup, function(e) { |
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$document.off('.tcp'); |
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}).on(_pointermove, function(e) { |
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action(e); |
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preRender(); |
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}); |
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} |
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|
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function xy_slider(event) { |
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var e = resolveEventType(event), |
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x = e.pageX - _$trigger._offset.left, |
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y = e.pageY - _$trigger._offset.top; |
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|
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_color.setColor({ |
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s: x / _$xy_slider._width * 100, |
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v: 100 - (y / _$xy_slider._height * 100) |
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}, 'hsv'); |
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} |
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|
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function z_slider(event) { |
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var z = resolveEventType(event).pageY - _$trigger._offset.top; |
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|
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_color.setColor({h: 360 - (z / _$z_slider._height * 360)}, 'hsv'); |
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} |
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|
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function alpha(event) { |
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var x = resolveEventType(event).pageX - _$trigger._offset.left, |
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alpha = x / _$alpha._width; |
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|
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_color.setColor({}, 'rgb', alpha); |
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} |
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|
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function preRender(toggled) { |
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var colors = _color.colors, |
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hueRGB = colors.hueRGB, |
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RGB = colors.RND.rgb, |
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HSL = colors.RND.hsl, |
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dark = _options.dark, |
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light = _options.light, |
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colorText = _color.toString(_$trigger._colorMode, _options.forceAlpha), |
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HUEContrast = colors.HUELuminance > 0.22 ? dark : light, |
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alphaContrast = colors.rgbaMixBlack.luminance > 0.22 ? dark : light, |
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h = (1 - colors.hsv.h) * _$z_slider._height, |
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s = colors.hsv.s * _$xy_slider._width, |
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v = (1 - colors.hsv.v) * _$xy_slider._height, |
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a = colors.alpha * _$alpha._width, |
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translate3d = _GPU ? 'translate3d' : '', |
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triggerValue = _$trigger[0].value, |
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hasNoValue = _$trigger[0].hasAttribute('value') && // question this |
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triggerValue === '' && toggled !== undefined; |
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|
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_$xy_slider._css = { |
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backgroundColor: 'rgb(' + |
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hueRGB.r + ',' + hueRGB.g + ',' + hueRGB.b + ')'}; |
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_$xy_cursor._css = { |
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transform: translate3d + '(' + s + 'px, ' + v + 'px, 0)', |
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left: !_GPU ? s : '', |
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top: !_GPU ? v : '', |
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borderColor : colors.RGBLuminance > 0.22 ? dark : light |
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}; |
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_$z_cursor._css = { |
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transform: translate3d + '(0, ' + h + 'px, 0)', |
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top: !_GPU ? h : '', |
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borderColor : 'transparent ' + HUEContrast |
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}; |
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_$alpha._css = {backgroundColor: '#' + colors.HEX}; |
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_$alpha_cursor._css = { |
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transform: translate3d + '(' + a + 'px, 0, 0)', |
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left: !_GPU ? a : '', |
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borderColor : alphaContrast + ' transparent' |
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}; |
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_$trigger._css = { |
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backgroundColor : hasNoValue ? '' : colorText, |
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color: hasNoValue ? '' : |
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colors.rgbaMixBGMixCustom.luminance > 0.22 ? dark : light |
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}; |
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_$trigger.text = hasNoValue ? '' : triggerValue !== colorText ? colorText : ''; |
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|
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toggled !== undefined ? render(toggled) : _animate(render); |
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} |
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|
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// As _animate() is actually requestAnimationFrame(), render() gets called |
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// decoupled from any pointer action (whenever the browser decides to do |
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// so) as an event. preRender() is coupled to toggle() and all pointermove |
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// actions; that's where all the calculations happen. render() can now be |
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// called without extra calculations which results in faster rendering. |
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function render(toggled) { |
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_$xy_slider.css(_$xy_slider._css); |
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_$xy_cursor.css(_$xy_cursor._css); |
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_$z_cursor.css(_$z_cursor._css); |
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_$alpha.css(_$alpha._css); |
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_$alpha_cursor.css(_$alpha_cursor._css); |
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|
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_options.doRender && _$trigger.css(_$trigger._css); |
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_$trigger.text && _$trigger.val(_$trigger.text); |
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|
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_options.renderCallback.call( |
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_colorPicker, |
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_$trigger, |
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typeof toggled === 'boolean' ? toggled : undefined |
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); |
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} |
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|
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$.fn.colorPicker = function(options) { |
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var _this = this, |
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noop = function(){}; |
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|
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options = $.extend({ |
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animationSpeed: 150, |
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GPU: true, |
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doRender: true, |
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customBG: '#FFF', |
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opacity: true, |
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renderCallback: noop, |
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buildCallback: noop, |
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positionCallback: noop, |
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body: document.body, |
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scrollResize: true, |
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gap: 4, |
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dark: '#222', |
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light: '#DDD' |
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// forceAlpha: undefined, |
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// css: '', |
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// cssAddon: '', |
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// margin: '', |
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// preventFocus: false |
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}, options); |
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|
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!_colorPicker && options.scrollResize && $(window) |
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.on('resize.tcp scroll.tcp', function() { |
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if (_colorPicker.$trigger) { |
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_colorPicker.toggle.call(_colorPicker.$trigger[0], true); |
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} |
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}); |
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_instance = _instance.add(this); |
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this.colorPicker = _colorPicker || new ColorPicker(options); |
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this.options = options; |
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|
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$(options.body).off('.tcp').on(_pointerdown, function(e) { |
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_instance.add(_$UI).add($(_$UI).find(e.target)). |
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index(e.target) === -1 && toggle(); |
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}); |
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|
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return this.on('focusin.tcp click.tcp', function(event) { |
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_colorPicker.color.options = // swap options to fake new instance |
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$.extend(_colorPicker.color.options, _options = _this.options); |
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toggle.call(this, event); |
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}) |
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.on('change.tcp', function() { |
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_color.setColor(this.value || '#FFF'); |
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_this.colorPicker.render(true); |
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}) |
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.each(function() { |
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var value = extractValue(this), |
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mode = value.split('('), |
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$elm = findElement($(this)); |
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|
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$elm.data('colorMode', mode[1] ? mode[0].substr(0, 3) : 'HEX') |
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.attr('readonly', _options.preventFocus); |
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options.doRender && |
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$elm.css({'background-color': value, |
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'color': function() { |
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return _color.setColor(value) |
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.rgbaMixBGMixCustom.luminance > 0.22 ? |
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options.dark : options.light |
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} |
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}); |
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}); |
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}; |
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|
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$.fn.colorPicker.destroy = function() { |
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$('*').off('.tcp'); // slower but saver |
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_colorPicker.toggle(false); |
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_instance = $(); |
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// destroy _colorPicker |
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}; |
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|
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})); |
