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Code Issues Projects Releases Wiki Activity
7ebd191488
html2canvas/dist/html2canvas.min.js
Niklas von Hertzen 7ebd191488 Fix form placeholder/value positioning for scrolled pages
2014-11-02 19:18:39 +02:00

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/*
html2canvas 0.5.0-alpha <http://html2canvas.hertzen.com>
Copyright (c) 2014 Niklas von Hertzen
Released under MIT License
*/
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this.computedStyles||(this.computedStyles=this.isPseudoElement?this.parent.computedStyle(this.before?":before":":after"):this.computedStyle(null)),this.styles[a]||(this.styles[a]=this.computedStyles[a])},F.prototype.prefixedCss=function(a){var b=["webkit","moz","ms","o"],c=this.css(a);return c===g&&b.some(function(b){return c=this.css(b+a.substr(0,1).toUpperCase()+a.substr(1)),c!==g
},this),c===g?null:c},F.prototype.computedStyle=function(a){return this.node.ownerDocument.defaultView.getComputedStyle(this.node,a)},F.prototype.cssInt=function(a){var b=parseInt(this.css(a),10);return isNaN(b)?0:b},F.prototype.cssFloat=function(a){var b=parseFloat(this.css(a));return isNaN(b)?0:b},F.prototype.fontWeight=function(){var a=this.css("fontWeight");switch(parseInt(a,10)){case 401:a="bold";break;case 400:a="normal"}return a},F.prototype.parseClip=function(){var a=this.css("clip").match(this.CLIP);return a?{top:parseInt(a[1],10),right:parseInt(a[2],10),bottom:parseInt(a[3],10),left:parseInt(a[4],10)}:null},F.prototype.parseBackgroundImages=function(){return this.backgroundImages||(this.backgroundImages=J(this.css("backgroundImage")))},F.prototype.cssList=function(a,b){var c=(this.css(a)||"").split(",");return c=c[b||0]||c[0]||"auto",c=c.trim().split(" "),1===c.length&&(c=[c[0],c[0]]),c},F.prototype.parseBackgroundSize=function(a,b,c){var d,e,f=this.cssList("backgroundSize",c);if(I(f[0]))d=a.width*parseFloat(f[0])/100;else{if(/contain|cover/.test(f[0])){var g=a.width/a.height,h=b.width/b.height;return h>g^"contain"===f[0]?{width:a.height*h,height:a.height}:{width:a.width,height:a.width/h}}d=parseInt(f[0],10)}return e="auto"===f[0]&&"auto"===f[1]?b.height:"auto"===f[1]?d/b.width*b.height:I(f[1])?a.height*parseFloat(f[1])/100:parseInt(f[1],10),"auto"===f[0]&&(d=e/b.height*b.width),{width:d,height:e}},F.prototype.parseBackgroundPosition=function(a,b,c,d){var e,f,g=this.cssList("backgroundPosition",c);return e=I(g[0])?(a.width-(d||b).width)*(parseFloat(g[0])/100):parseInt(g[0],10),f="auto"===g[1]?e/b.width*b.height:I(g[1])?(a.height-(d||b).height)*parseFloat(g[1])/100:parseInt(g[1],10),"auto"===g[0]&&(e=f/b.height*b.width),{left:e,top:f}},F.prototype.parseBackgroundRepeat=function(a){return this.cssList("backgroundRepeat",a)[0]},F.prototype.parseTextShadows=function(){var a=this.css("textShadow"),b=[];if(a&&"none"!==a)for(var c=a.match(this.TEXT_SHADOW_PROPERTY),d=0;c&&d<c.length;d++){var e=c[d].match(this.TEXT_SHADOW_VALUES);b.push({color:e[0],offsetX:e[1]?parseFloat(e[1].replace("px","")):0,offsetY:e[2]?parseFloat(e[2].replace("px","")):0,blur:e[3]?e[3].replace("px",""):0})}return b},F.prototype.parseTransform=function(){if(!this.transformData)if(this.hasTransform()){var a=this.parseBounds(),b=this.prefixedCss("transformOrigin").split(" ").map(K).map(L);b[0]+=a.left,b[1]+=a.top,this.transformData={origin:b,matrix:this.parseTransformMatrix()}}else this.transformData={origin:[0,0],matrix:[1,0,0,1,0,0]};return this.transformData},F.prototype.parseTransformMatrix=function(){if(!this.transformMatrix){var a=this.prefixedCss("transform"),b=a?H(a.match(this.MATRIX_PROPERTY)):null;this.transformMatrix=b?b:[1,0,0,1,0,0]}return this.transformMatrix},F.prototype.parseBounds=function(){return this.bounds||(this.bounds=this.hasTransform()?N(this.node):M(this.node))},F.prototype.hasTransform=function(){return"1,0,0,1,0,0"!==this.parseTransformMatrix().join(",")||this.parent&&this.parent.hasTransform()},F.prototype.getValue=function(){var a=this.node.value||"";return a="SELECT"===this.node.tagName?G(this.node):a,0===a.length?this.node.placeholder||"":a},F.prototype.MATRIX_PROPERTY=/(matrix)\((.+)\)/,F.prototype.TEXT_SHADOW_PROPERTY=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g,F.prototype.TEXT_SHADOW_VALUES=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g,F.prototype.CLIP=/^rect\((\d+)px,? (\d+)px,? (\d+)px,? (\d+)px\)$/,O.prototype.calculateOverflowClips=function(){this.nodes.forEach(function(a){if(jb(a)){kb(a)&&a.appendToDOM(),a.borders=this.parseBorders(a);var b="hidden"===a.css("overflow")?[a.borders.clip]:[],c=a.parseClip();c&&-1!==["absolute","fixed"].indexOf(a.css("position"))&&b.push([["rect",a.bounds.left+c.left,a.bounds.top+c.top,c.right-c.left,c.bottom-c.top]]),a.clip=P(a)?a.parent.clip.concat(b):b,a.backgroundClip="hidden"!==a.css("overflow")?a.clip.concat([a.borders.clip]):a.clip,kb(a)&&a.cleanDOM()}else lb(a)&&(a.clip=P(a)?a.parent.clip:[]);kb(a)||(a.bounds=null)},this)},O.prototype.asyncRenderer=function(a,b,c){c=c||Date.now(),this.paint(a[this.renderIndex++]),a.length===this.renderIndex?b():c+20>Date.now()?this.asyncRenderer(a,b,c):setTimeout(ob(function(){this.asyncRenderer(a,b)},this),0)},O.prototype.createPseudoHideStyles=function(a){this.createStyles(a,"."+Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE+':before { content: "" !important; display: none !important; }.'+Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER+':after { content: "" !important; display: none !important; }')},O.prototype.disableAnimations=function(a){this.createStyles(a,"* { -webkit-animation: none !important; -moz-animation: none !important; -o-animation: none !important; animation: none !important; }")},O.prototype.createStyles=function(a,b){var c=a.createElement("style");c.innerHTML=b,a.body.appendChild(c)},O.prototype.getPseudoElements=function(a){var b=[[a]];if(a.node.nodeType===Node.ELEMENT_NODE){var c=this.getPseudoElement(a,":before"),d=this.getPseudoElement(a,":after");c&&b.push(c),d&&b.push(d)}return sb(b)},O.prototype.getPseudoElement=function(a,c){var d=a.computedStyle(c);if(!d||!d.content||"none"===d.content||"-moz-alt-content"===d.content||"none"===d.display)return null;for(var e=tb(d.content),f="url"===e.substr(0,3),g=b.createElement(f?"img":"html2canvaspseudoelement"),h=new Db(g,a,c),i=d.length-1;i>=0;i--){var j=Q(d.item(i));g.style[j]=d[j]}if(g.className=Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE+" "+Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER,f)return g.src=J(e)[0].args[0],[h];var k=b.createTextNode(e);return g.appendChild(k),[h,new Kb(k,h)]},O.prototype.getChildren=function(a){return sb([].filter.call(a.node.childNodes,db).map(function(b){var c=[b.nodeType===Node.TEXT_NODE?new Kb(b,a):new F(b,a)].filter(rb);return b.nodeType===Node.ELEMENT_NODE&&c.length&&"TEXTAREA"!==b.tagName?c[0].isElementVisible()?c.concat(this.getChildren(c[0])):[]:c},this))},O.prototype.newStackingContext=function(a,b){var c=new Fb(b,a.getOpacity(),a.node,a.parent);a.cloneTo(c);var d=b?c.getParentStack(this):c.parent.stack;d.contexts.push(c),a.stack=c},O.prototype.createStackingContexts=function(){this.nodes.forEach(function(a){jb(a)&&(this.isRootElement(a)||nb(a)||eb(a)||this.isBodyWithTransparentRoot(a)||a.hasTransform())?this.newStackingContext(a,!0):jb(a)&&(fb(a)&&Z(a)||hb(a)||gb(a))?this.newStackingContext(a,!1):a.assignStack(a.parent.stack)},this)},O.prototype.isBodyWithTransparentRoot=function(a){return"BODY"===a.node.nodeName&&this.renderer.isTransparent(a.parent.css("backgroundColor"))},O.prototype.isRootElement=function(a){return null===a.parent},O.prototype.sortStackingContexts=function(a){a.contexts.sort(mb(a.contexts.slice(0))),a.contexts.forEach(this.sortStackingContexts,this)},O.prototype.parseTextBounds=function(a){return function(b,c,d){if("none"!==a.parent.css("textDecoration").substr(0,4)||0!==b.trim().length){if(this.support.rangeBounds&&!a.parent.hasTransform()){var e=d.slice(0,c).join("").length;return this.getRangeBounds(a.node,e,b.length)}if(a.node&&"string"==typeof a.node.data){var f=a.node.splitText(b.length),g=this.getWrapperBounds(a.node,a.parent.hasTransform());return a.node=f,g}}else(!this.support.rangeBounds||a.parent.hasTransform())&&(a.node=a.node.splitText(b.length));return{}}},O.prototype.getWrapperBounds=function(a,b){var c=a.ownerDocument.createElement("html2canvaswrapper"),d=a.parentNode,e=a.cloneNode(!0);c.appendChild(a.cloneNode(!0)),d.replaceChild(c,a);var f=b?N(c):M(c);return d.replaceChild(e,c),f},O.prototype.getRangeBounds=function(a,b,c){var d=this.range||(this.range=a.ownerDocument.createRange());return d.setStart(a,b),d.setEnd(a,b+c),d.getBoundingClientRect()},O.prototype.parse=function(a){var b=a.contexts.filter(X),c=a.children.filter(jb),d=c.filter(ib(gb)),e=d.filter(ib(fb)).filter(ib($)),f=c.filter(ib(fb)).filter(gb),g=d.filter(ib(fb)).filter($),h=a.contexts.concat(d.filter(fb)).filter(Z),i=a.children.filter(lb).filter(ab),j=a.contexts.filter(Y);b.concat(e).concat(f).concat(g).concat(h).concat(i).concat(j).forEach(function(a){this.renderQueue.push(a),_(a)&&(this.parse(a),this.renderQueue.push(new R))},this)},O.prototype.paint=function(a){try{a instanceof R?this.renderer.ctx.restore():lb(a)?(kb(a.parent)&&a.parent.appendToDOM(),this.paintText(a),kb(a.parent)&&a.parent.cleanDOM()):this.paintNode(a)}catch(b){E(b)}},O.prototype.paintNode=function(a){_(a)&&(this.renderer.setOpacity(a.opacity),this.renderer.ctx.save(),a.hasTransform()&&this.renderer.setTransform(a.parseTransform()));var b=a.parseBounds();this.renderer.clip(a.backgroundClip,function(){this.renderer.renderBackground(a,b,a.borders.borders.map(qb))},this),this.renderer.clip(a.clip,function(){this.renderer.renderBorders(a.borders.borders)},this),this.renderer.clip(a.backgroundClip,function(){switch(a.node.nodeName){case"svg":case"IFRAME":var c=this.images.get(a.node);c?this.renderer.renderImage(a,b,a.borders,c):E("Error loading <"+a.node.nodeName+">",a.node);break;case"IMG":var d=this.images.get(a.node.src);d?this.renderer.renderImage(a,b,a.borders,d):E("Error loading <img>",a.node.src);break;case"CANVAS":this.renderer.renderImage(a,b,a.borders,{image:a.node});break;case"SELECT":case"INPUT":case"TEXTAREA":this.paintFormValue(a)}},this)},O.prototype.paintFormValue=function(a){if(a.getValue().length>0){var b=a.node.ownerDocument,c=b.createElement("html2canvaswrapper"),d=["lineHeight","textAlign","fontFamily","fontWeight","fontSize","color","paddingLeft","paddingTop","paddingRight","paddingBottom","width","height","borderLeftStyle","borderTopStyle","borderLeftWidth","borderTopWidth","boxSizing","whiteSpace","wordWrap"];d.forEach(function(b){try{c.style[b]=a.css(b)}catch(d){E("html2canvas: Parse: Exception caught in renderFormValue: "+d.message)}});var e=a.parseBounds();c.style.position="fixed",c.style.left=e.left+"px",c.style.top=e.top+"px",c.textContent=a.getValue(),b.body.appendChild(c),this.paintText(new Kb(c.firstChild,a)),b.body.removeChild(c)}},O.prototype.paintText=function(b){b.applyTextTransform();var c=a.html2canvas.punycode.ucs2.decode(b.node.data),d=this.options.letterRendering&&!bb(b)||wb(b.node.data)?c.map(function(b){return a.html2canvas.punycode.ucs2.encode([b])}):ub(c),e=b.parent.fontWeight(),f=b.parent.css("fontSize"),g=b.parent.css("fontFamily"),h=b.parent.parseTextShadows();this.renderer.font(b.parent.css("color"),b.parent.css("fontStyle"),b.parent.css("fontVariant"),e,f,g),h.length?this.renderer.fontShadow(h[0].color,h[0].offsetX,h[0].offsetY,h[0].blur):this.renderer.clearShadow(),this.renderer.clip(b.parent.clip,function(){d.map(this.parseTextBounds(b),this).forEach(function(a,c){a&&(this.renderer.text(d[c],a.left,a.bottom),this.renderTextDecoration(b.parent,a,this.fontMetrics.getMetrics(g,f)))},this)},this)},O.prototype.renderTextDecoration=function(a,b,c){switch(a.css("textDecoration").split(" ")[0]){case"underline":this.renderer.rectangle(b.left,Math.round(b.top+c.baseline+c.lineWidth),b.width,1,a.css("color"));break;case"overline":this.renderer.rectangle(b.left,Math.round(b.top),b.width,1,a.css("color"));break;case"line-through":this.renderer.rectangle(b.left,Math.ceil(b.top+c.middle+c.lineWidth),b.width,1,a.css("color"))}},O.prototype.parseBorders=function(a){var b=a.parseBounds(),c=cb(a),d=["Top","Right","Bottom","Left"].map(function(b){return{width:a.cssInt("border"+b+"Width"),color:a.css("border"+b+"Color"),args:null}}),e=T(b,c,d);return{clip:this.parseBackgroundClip(a,e,d,c,b),borders:d.map(function(a,f){if(a.width>0){var g=b.left,h=b.top,i=b.width,j=b.height-d[2].width;switch(f){case 0:j=d[0].width,a.args=V({c1:[g,h],c2:[g+i,h],c3:[g+i-d[1].width,h+j],c4:[g+d[3].width,h+j]},c[0],c[1],e.topLeftOuter,e.topLeftInner,e.topRightOuter,e.topRightInner);break;case 1:g=b.left+b.width-d[1].width,i=d[1].width,a.args=V({c1:[g+i,h],c2:[g+i,h+j+d[2].width],c3:[g,h+j],c4:[g,h+d[0].width]},c[1],c[2],e.topRightOuter,e.topRightInner,e.bottomRightOuter,e.bottomRightInner);break;case 2:h=h+b.height-d[2].width,j=d[2].width,a.args=V({c1:[g+i,h+j],c2:[g,h+j],c3:[g+d[3].width,h],c4:[g+i-d[3].width,h]},c[2],c[3],e.bottomRightOuter,e.bottomRightInner,e.bottomLeftOuter,e.bottomLeftInner);break;case 3:i=d[3].width,a.args=V({c1:[g,h+j+d[2].width],c2:[g,h],c3:[g+i,h+d[0].width],c4:[g+i,h+j]},c[3],c[0],e.bottomLeftOuter,e.bottomLeftInner,e.topLeftOuter,e.topLeftInner)}}return a})}},O.prototype.parseBackgroundClip=function(a,b,c,d,e){var f=a.css("backgroundClip"),g=[];switch(f){case"content-box":case"padding-box":W(g,d[0],d[1],b.topLeftInner,b.topRightInner,e.left+c[3].width,e.top+c[0].width),W(g,d[1],d[2],b.topRightInner,b.bottomRightInner,e.left+e.width-c[1].width,e.top+c[0].width),W(g,d[2],d[3],b.bottomRightInner,b.bottomLeftInner,e.left+e.width-c[1].width,e.top+e.height-c[2].width),W(g,d[3],d[0],b.bottomLeftInner,b.topLeftInner,e.left+c[3].width,e.top+e.height-c[2].width);break;default:W(g,d[0],d[1],b.topLeftOuter,b.topRightOuter,e.left,e.top),W(g,d[1],d[2],b.topRightOuter,b.bottomRightOuter,e.left+e.width,e.top),W(g,d[2],d[3],b.bottomRightOuter,b.bottomLeftOuter,e.left+e.width,e.top+e.height),W(g,d[3],d[0],b.bottomLeftOuter,b.topLeftOuter,e.left,e.top+e.height)}return g};var Tb=0,Ub="withCredentials"in new XMLHttpRequest,Vb="crossOrigin"in new Image;Db.prototype.cloneTo=function(a){Db.prototype.cloneTo.call(this,a),a.isPseudoElement=!0,a.before=this.before},Db.prototype=Object.create(F.prototype),Db.prototype.appendToDOM=function(){this.before?this.parent.node.insertBefore(this.node,this.parent.node.firstChild):this.parent.node.appendChild(this.node),this.parent.node.className+=" "+this.getHideClass()},Db.prototype.cleanDOM=function(){this.node.parentNode.removeChild(this.node),this.parent.node.className=this.parent.node.className.replace(this.getHideClass(),"")},Db.prototype.getHideClass=function(){return this["PSEUDO_HIDE_ELEMENT_CLASS_"+(this.before?"BEFORE":"AFTER")]},Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE="___html2canvas___pseudoelement_before",Db.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER="___html2canvas___pseudoelement_after",Eb.prototype.renderImage=function(a,b,c,d){var e=a.cssInt("paddingLeft"),f=a.cssInt("paddingTop"),g=a.cssInt("paddingRight"),h=a.cssInt("paddingBottom"),i=c.borders,j=b.width-(i[1].width+i[3].width+e+g),k=b.height-(i[0].width+i[2].width+f+h);this.drawImage(d,0,0,d.image.width||j,d.image.height||k,b.left+e+i[3].width,b.top+f+i[0].width,j,k)},Eb.prototype.renderBackground=function(a,b,c){b.height>0&&b.width>0&&(this.renderBackgroundColor(a,b),this.renderBackgroundImage(a,b,c))},Eb.prototype.renderBackgroundColor=function(a,b){var c=a.css("backgroundColor");this.isTransparent(c)||this.rectangle(b.left,b.top,b.width,b.height,a.css("backgroundColor"))},Eb.prototype.renderBorders=function(a){a.forEach(this.renderBorder,this)},Eb.prototype.renderBorder=function(a){this.isTransparent(a.color)||null===a.args||this.drawShape(a.args,a.color)},Eb.prototype.renderBackgroundImage=function(a,b,c){var d=a.parseBackgroundImages();d.reverse().forEach(function(d,e,f){switch(d.method){case"url":var g=this.images.get(d.args[0]);g?this.renderBackgroundRepeating(a,b,g,f.length-(e+1),c):E("Error loading background-image",d.args[0]);break;case"linear-gradient":case"gradient":var h=this.images.get(d.value);h?this.renderBackgroundGradient(h,b,c):E("Error loading background-image",d.args[0]);break;case"none":break;default:E("Unknown background-image type",d.args[0])}},this)},Eb.prototype.renderBackgroundRepeating=function(a,b,c,d,e){var f=a.parseBackgroundSize(b,c.image,d),g=a.parseBackgroundPosition(b,c.image,d,f),h=a.parseBackgroundRepeat(d);switch(h){case"repeat-x":case"repeat no-repeat":this.backgroundRepeatShape(c,g,f,b,b.left+e[3],b.top+g.top+e[0],99999,f.height,e);break;case"repeat-y":case"no-repeat repeat":this.backgroundRepeatShape(c,g,f,b,b.left+g.left+e[3],b.top+e[0],f.width,99999,e);break;case"no-repeat":this.backgroundRepeatShape(c,g,f,b,b.left+g.left+e[3],b.top+g.top+e[0],f.width,f.height,e);break;default:this.renderBackgroundRepeat(c,g,f,{top:b.top,left:b.left},e[3],e[0])}},Eb.prototype.isTransparent=function(a){return!a||"transparent"===a||"rgba(0, 0, 0, 0)"===a},Fb.prototype=Object.create(F.prototype),Fb.prototype.getParentStack=function(a){var b=this.parent?this.parent.stack:null;return b?b.ownStacking?b:b.getParentStack(a):a.stack},Gb.prototype.testRangeBounds=function(a){var b,c,d,e,f=!1;return a.createRange&&(b=a.createRange(),b.getBoundingClientRect&&(c=a.createElement("boundtest"),c.style.height="123px",c.style.display="block",a.body.appendChild(c),b.selectNode(c),d=b.getBoundingClientRect(),e=d.height,123===e&&(f=!0),a.body.removeChild(c))),f},Gb.prototype.testCORS=function(){return"undefined"!=typeof(new Image).crossOrigin},Gb.prototype.testSVG=function(){var a=new Image,c=b.createElement("canvas"),d=c.getContext("2d");a.src="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>";try{d.drawImage(a,0,0),c.toDataURL()}catch(e){return!1}return!0},Hb.prototype.hasFabric=function(){return html2canvas.fabric?Promise.resolve():Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg"))},Hb.prototype.inlineFormatting=function(a){return/^data:image\/svg\+xml;base64,/.test(a)?this.decode64(this.removeContentType(a)):this.removeContentType(a)},Hb.prototype.removeContentType=function(a){return a.replace(/^data:image\/svg\+xml(;base64)?,/,"")},Hb.prototype.isInline=function(a){return/^data:image\/svg\+xml/i.test(a)},Hb.prototype.createCanvas=function(a){var b=this;return function(c,d){var e=new html2canvas.fabric.StaticCanvas("c");b.image=e.lowerCanvasEl,e.setWidth(d.width).setHeight(d.height).add(html2canvas.fabric.util.groupSVGElements(c,d)).renderAll(),a(e.lowerCanvasEl)}},Hb.prototype.decode64=function(b){return"function"==typeof a.atob?a.atob(b):Ib(b)},Jb.prototype=Object.create(Hb.prototype),Kb.prototype=Object.create(F.prototype),Kb.prototype.applyTextTransform=function(){this.node.data=this.transform(this.parent.css("textTransform"))},Kb.prototype.transform=function(a){var b=this.node.data;switch(a){case"lowercase":return b.toLowerCase();case"capitalize":return b.replace(/(^|\s|:|-|\(|\))([a-z])/g,Lb);case"uppercase":return b.toUpperCase();default:return b}},Mb.prototype=Object.create(A.prototype),Ob.prototype=Object.create(Eb.prototype),Ob.prototype.setFillStyle=function(a){return this.ctx.fillStyle=a,this.ctx},Ob.prototype.rectangle=function(a,b,c,d,e){this.setFillStyle(e).fillRect(a,b,c,d)},Ob.prototype.drawShape=function(a,b){this.shape(a),this.setFillStyle(b).fill()},Ob.prototype.taints=function(a){if(null===a.tainted){this.taintCtx.drawImage(a.image,0,0);try{this.taintCtx.getImageData(0,0,1,1),a.tainted=!1}catch(c){this.taintCtx=b.createElement("canvas").getContext("2d"),a.tainted=!0}}return a.tainted},Ob.prototype.drawImage=function(a,b,c,d,e,f,g,h,i){(!this.taints(a)||this.options.allowTaint)&&this.ctx.drawImage(a.image,b,c,d,e,f,g,h,i)},Ob.prototype.clip=function(a,b,c){this.ctx.save(),a.filter(Pb).forEach(function(a){this.shape(a).clip()},this),b.call(c),this.ctx.restore()},Ob.prototype.shape=function(a){return this.ctx.beginPath(),a.forEach(function(a,b){"rect"===a[0]?this.ctx.rect.apply(this.ctx,a.slice(1)):this.ctx[0===b?"moveTo":a[0]+"To"].apply(this.ctx,a.slice(1))},this),this.ctx.closePath(),this.ctx},Ob.prototype.font=function(a,b,c,d,e,f){this.setFillStyle(a).font=[b,c,d,e,f].join(" ")},Ob.prototype.fontShadow=function(a,b,c,d){this.setVariable("shadowColor",a).setVariable("shadowOffsetY",b).setVariable("shadowOffsetX",c).setVariable("shadowBlur",d)},Ob.prototype.clearShadow=function(){this.setVariable("shadowColor","rgba(0,0,0,0)")},Ob.prototype.setOpacity=function(a){this.ctx.globalAlpha=a},Ob.prototype.setTransform=function(a){this.ctx.translate(a.origin[0],a.origin[1]),this.ctx.transform.apply(this.ctx,a.matrix),this.ctx.translate(-a.origin[0],-a.origin[1])},Ob.prototype.setVariable=function(a,b){return this.variables[a]!==b&&(this.variables[a]=this.ctx[a]=b),this},Ob.prototype.text=function(a,b,c){this.ctx.fillText(a,b,c)},Ob.prototype.backgroundRepeatShape=function(a,b,c,d,e,f,g,h,i){var j=[["line",Math.round(e),Math.round(f)],["line",Math.round(e+g),Math.round(f)],["line",Math.round(e+g),Math.round(h+f)],["line",Math.round(e),Math.round(h+f)]];this.clip([j],function(){this.renderBackgroundRepeat(a,b,c,d,i[3],i[0])},this)},Ob.prototype.renderBackgroundRepeat=function(a,b,c,d,e,f){var g=Math.round(d.left+b.left+e),h=Math.round(d.top+b.top+f);this.setFillStyle(this.ctx.createPattern(this.resizeImage(a,c),"repeat")),this.ctx.translate(g,h),this.ctx.fill(),this.ctx.translate(-g,-h)},Ob.prototype.renderBackgroundGradient=function(a,b){if(a instanceof D){var c=this.ctx.createLinearGradient(b.left+b.width*a.x0,b.top+b.height*a.y0,b.left+b.width*a.x1,b.top+b.height*a.y1);a.colorStops.forEach(function(a){c.addColorStop(a.stop,a.color)}),this.rectangle(b.left,b.top,b.width,b.height,c)}},Ob.prototype.resizeImage=function(a,c){var d=a.image;if(d.width===c.width&&d.height===c.height)return d;var e,f=b.createElement("canvas");return f.width=c.width,f.height=c.height,e=f.getContext("2d"),e.drawImage(d,0,0,d.width,d.height,0,0,c.width,c.height),f}}).call({},window,document);
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