easydiffusion/ui/media/js/drawingboard.min.js

/* drawingboard.js v0.4.6 - https://github.com/Leimi/drawingboard.js
* Copyright (c) 2015 Emmanuel Pelletier
* Licensed MIT */
!function(){"use strict";function a(a,b){for(;a.length>b;)a.shift()}var b=function(a){var b=a?a:{},c={provider:function(){throw new Error("No provider!")},maxLength:30,onUpdate:function(){}};this.provider="undefined"!=typeof b.provider?b.provider:c.provider,this.maxLength="undefined"!=typeof b.maxLength?b.maxLength:c.maxLength,this.onUpdate="undefined"!=typeof b.onUpdate?b.onUpdate:c.onUpdate,this.initialItem=null,this.clear()};b.prototype.initialize=function(a){this.stack[0]=a,this.initialItem=a},b.prototype.clear=function(){this.stack=[this.initialItem],this.position=0,this.onUpdate()},b.prototype.save=function(){this.provider(function(b){a(this.stack,this.maxLength),this.position=Math.min(this.position,this.stack.length-1),this.stack=this.stack.slice(0,this.position+1),this.stack.push(b),this.position++,this.onUpdate()}.bind(this))},b.prototype.undo=function(a){if(this.canUndo()){var b=this.stack[--this.position];this.onUpdate(),a&&a(b)}},b.prototype.redo=function(a){if(this.canRedo()){var b=this.stack[++this.position];this.onUpdate(),a&&a(b)}},b.prototype.canUndo=function(){return this.position>0},b.prototype.canRedo=function(){return this.position<this.count()},b.prototype.count=function(){return this.stack.length-1},"undefined"!=typeof module&&(module.exports=b),"undefined"!=typeof window&&(window.SimpleUndo=b)}(),window.DrawingBoard="undefined"!=typeof DrawingBoard?DrawingBoard:{},DrawingBoard.Utils={},DrawingBoard.Utils.tpl=function(){"use strict";var a,b="{{",c="}}",d="[a-z0-9_][\\.a-z0-9_]*",e=new RegExp(b+"\\s*("+d+")\\s*"+c,"gi");return function(b,c){return b.replace(e,function(b,d){for(var e=d.split("."),f=e.length,g=c,h=0;f>h;h++){if(g=g[e[h]],g===a)throw"tim: '"+e[h]+"' not found in "+b;if(h===f-1)return g}})}}(),DrawingBoard.Utils.MicroEvent=function(){},DrawingBoard.Utils.MicroEvent.prototype={bind:function(a,b){this._events=this._events||{},this._events[a]=this._events[a]||[],this._events[a].push(b)},unbind:function(a,b){this._events=this._events||{},a in this._events!=!1&&this._events[a].splice(this._events[a].indexOf(b),1)},trigger:function(a){if(this._events=this._events||{},a in this._events!=!1)for(var b=0;b<this._events[a].length;b++)this._events[a][b].apply(this,Array.prototype.slice.call(arguments,1))}},DrawingBoard.Utils._boxBorderSize=function(a,b,c,d){b=!!b||!0,c=!!c||!1;var e,f=0;"width"==d?(e=["border-left-width","border-right-width"],b&&e.push("padding-left","padding-right"),c&&e.push("margin-left","margin-right")):(e=["border-top-width","border-bottom-width"],b&&e.push("padding-top","padding-bottom"),c&&e.push("margin-top","margin-bottom"));for(var g=e.length-1;g>=0;g--)f+=parseInt(a.css(e[g]).replace("px",""),10);return f},DrawingBoard.Utils.boxBorderWidth=function(a,b,c){return DrawingBoard.Utils._boxBorderSize(a,b,c,"width")},DrawingBoard.Utils.boxBorderHeight=function(a,b,c){return DrawingBoard.Utils._boxBorderSize(a,b,c,"height")},DrawingBoard.Utils.isColor=function(a){return a&&a.length?/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a)||-1!==$.inArray(a.substring(0,3),["rgb","hsl"]):!1},DrawingBoard.Utils.RGBToInt=function(a,b,c){var d=0;return d|=(255&a)<<16,d|=(255&b)<<8,d|=255&c},DrawingBoard.Utils.pixelAt=function(a,b,c){var d=4*(c*a.width+b),e=DrawingBoard.Utils.RGBToInt(a.data[d],a.data[d+1],a.data[d+2]);return[d,b,c,e]},DrawingBoard.Utils.compareColors=function(a,b,c){if(0===c)return a===b;var d=a>>16&255,e=b>>16&255,f=a>>8&255,g=b>>8&255,h=255&a,i=255&b;return Math.abs(d-e)<=c&&Math.abs(f-g)<=c&&Math.abs(h-i)<=c},function(){for(var a=["ms","moz","webkit","o"],b=0;b<a.length&&!window.requestAnimationFrame;++b)window.requestAnimationFrame=window[a[b]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[a[b]+"CancelAnimationFrame"]||window[a[b]+"CancelRequestAnimationFrame"]}(),window.DrawingBoard="undefined"!=typeof DrawingBoard?DrawingBoard:{},DrawingBoard.Board=function(a,b){if(this.opts=this.mergeOptions(b),this.ev=new DrawingBoard.Utils.MicroEvent,this.id=a,this.$el=$(document.getElementById(a)),!this.$el.length)return!1;var c='<div class="drawing-board-canvas-wrapper">