mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
8 lines
49 KiB
JavaScript
8 lines
49 KiB
JavaScript
/*
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html2canvas 0.5.0-alpha <http://html2canvas.hertzen.com>
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Copyright (c) 2014 Niklas von Hertzen
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Released under MIT License
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*/
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!function(a,b,c){function d(a,b,c,d){return k(a,a,c,d,b).then(function(f){A("Document cloned");var g="["+Kb+"='true']";a.querySelector(g).removeAttribute(Kb);var h=f.contentWindow,i=h.document.querySelector(g);return e(i,f,b,c,d)})}function e(a,c,d,e,j){var k=c.contentWindow,l=new Ab(k.document),m=new y(d,l),n=I(a),o=null!=d.width?d.width:"view"===d.type?Math.min(n.width,e):h(k.document),p=null!=d.height?d.height:"view"===d.type?Math.min(n.height,j):i(k.document),q=new Ib(o,p,m,d,b),r=new K(a,q,l,m,d);return r.ready.then(function(){A("Finished rendering");var b="view"===d.type||a!==k.document.body&&a!==k.document.documentElement?g(q.canvas,{width:o,height:p,top:n.top,left:n.left}):q.canvas;return f(c,d),b})}function f(a,b){b.removeContainer&&(a.parentNode.removeChild(a),A("Cleaned up container"))}function g(a,c){var d=b.createElement("canvas"),e=Math.min(a.width-1,Math.max(0,c.left)),f=Math.min(a.width,Math.max(1,c.left+c.width)),g=Math.min(a.height-1,Math.max(0,c.top)),h=Math.min(a.height,Math.max(1,c.top+c.height)),i=d.width=f-e,j=d.height=h-g;return A("Cropping canvas at:","left:",c.left,"top:",c.top,"width:",c.width,"height:",c.height),A("Resulting crop with width",i,"and height",j," with x",e,"and y",g),d.getContext("2d").drawImage(a,e,g,i,j,0,0,i,j),d}function h(a){return Math.max(Math.max(a.body.scrollWidth,a.documentElement.scrollWidth),Math.max(a.body.offsetWidth,a.documentElement.offsetWidth),Math.max(a.body.clientWidth,a.documentElement.clientWidth))}function i(a){return Math.max(Math.max(a.body.scrollHeight,a.documentElement.scrollHeight),Math.max(a.body.offsetHeight,a.documentElement.offsetHeight),Math.max(a.body.clientHeight,a.documentElement.clientHeight))}function j(){return"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"}function k(b,c,d,e,f){n(b);var g=b.documentElement.cloneNode(!0),h=c.createElement("iframe");return h.style.visibility="hidden",h.style.position="absolute",h.style.left=h.style.top="-10000px",h.width=d,h.height=e,h.scrolling="no",c.body.appendChild(h),new Promise(function(c){var d=h.contentWindow.document;h.contentWindow.onload=h.onload=function(){var a=setInterval(function(){d.body.childNodes.length>0&&(o(b,d),clearInterval(a),c(h))},50)},d.open(),d.write("<!DOCTYPE html>"),d.close(),d.replaceChild(f.javascriptEnabled===!0?d.adoptNode(g):p(d.adoptNode(g)),d.documentElement),"view"===f.type&&h.contentWindow.scrollTo(a.pageXOffset,a.pageYOffset)})}function l(b,c,d,e,f,g){return new sb(b,c,a.document).then(m(b)).then(function(a){return k(a,d,e,f,g)})}function m(a){return function(b){var c=new DOMParser,d=c.parseFromString(b,"text/html"),e=d.querySelector("base");if(!e||!e.href.host){var f=d.createElement("base");f.href=a,d.head.insertBefore(f,d.head.firstChild)}return d}}function n(a){[].slice.call(a.querySelectorAll("canvas"),0).forEach(function(a){a.setAttribute(Lb,"canvas-"+Mb++)})}function o(a,b){[].slice.call(a.querySelectorAll("["+Lb+"]"),0).forEach(function(a){try{var c=b.querySelector("["+Lb+'="'+a.getAttribute(Lb)+'"]');c&&(c.width=a.width,c.height=a.height,c.getContext("2d").putImageData(a.getContext("2d").getImageData(0,0,a.width,a.height),0,0))}catch(d){A("Unable to copy canvas content from",a,d)}a.removeAttribute(Lb)})}function p(a){return[].slice.call(a.childNodes,0).filter(q).forEach(function(b){"SCRIPT"===b.tagName?a.removeChild(b):p(b)}),a}function q(a){return a.nodeType===Node.ELEMENT_NODE}function r(a){var c=b.createElement("a");return c.href=a,c.href=c.href,c}function s(a){if(this.src=a,A("DummyImageContainer for",a),!this.promise||!this.image){A("Initiating DummyImageContainer"),s.prototype.image=new Image;var b=this.image;s.prototype.promise=new Promise(function(a,c){b.onload=a,b.onerror=c,b.src=j(),b.complete===!0&&a(b)})}}function t(a,c){var d,e,f=b.createElement("div"),g=b.createElement("img"),h=b.createElement("span"),i="Hidden Text";f.style.visibility="hidden",f.style.fontFamily=a,f.style.fontSize=c,f.style.margin=0,f.style.padding=0,b.body.appendChild(f),g.src=j(),g.width=1,g.height=1,g.style.margin=0,g.style.padding=0,g.style.verticalAlign="baseline",h.style.fontFamily=a,h.style.fontSize=c,h.style.margin=0,h.style.padding=0,h.appendChild(b.createTextNode(i)),f.appendChild(h),f.appendChild(g),d=g.offsetTop-h.offsetTop+1,f.removeChild(h),f.appendChild(b.createTextNode(i)),f.style.lineHeight="normal",g.style.verticalAlign="super",e=g.offsetTop-f.offsetTop+1,b.body.removeChild(f),this.baseline=d,this.lineWidth=1,this.middle=e}function u(){this.data={}}function v(a,b,c){this.image=null,this.src=a;var d=this,e=I(a);this.promise=(b?new Promise(function(b){"about:blank"===a.contentWindow.document.URL||null==a.contentWindow.document.documentElement?a.contentWindow.onload=a.onload=function(){b(a)}:b(a)}):this.proxyLoad(c.proxy,e,c)).then(function(a){return html2canvas(a.contentWindow.document.documentElement,{type:"view",width:a.width,height:a.height,proxy:c.proxy,javascriptEnabled:c.javascriptEnabled,removeContainer:c.removeContainer,allowTaint:c.allowTaint,imageTimeout:c.imageTimeout/2})}).then(function(a){return d.image=a})}function w(a){this.src=a.value,this.colorStops=[],this.type=null,this.x0=.5,this.y0=.5,this.x1=.5,this.y1=.5,this.promise=Promise.resolve(!0)}function x(a,b){this.src=a,this.image=new Image;var c=this;this.tainted=null,this.promise=new Promise(function(d,e){c.image.onload=d,c.image.onerror=e,b&&(c.image.crossOrigin="anonymous"),c.image.src=a,c.image.complete===!0&&d(c.image)})}function y(b,c){this.link=null,this.options=b,this.support=c,this.origin=a.location.protocol+a.location.hostname+a.location.port}function z(a){w.apply(this,arguments),this.type=this.TYPES.LINEAR;var b=null===a.args[0].match(this.stepRegExp);b?a.args[0].split(" ").reverse().forEach(function(a){switch(a){case"left":this.x0=0,this.x1=1;break;case"top":this.y0=0,this.y1=1;break;case"right":this.x0=1,this.x1=0;break;case"bottom":this.y0=1,this.y1=0;break;case"to":var b=this.y0,c=this.x0;this.y0=this.y1,this.x0=this.x1,this.x1=c,this.y1=b}},this):(this.y0=0,this.y1=1),this.colorStops=a.args.slice(b?1:0).map(function(a){var b=a.match(this.stepRegExp);return{color:b[1],stop:"%"===b[3]?b[2]/100:null}},this),null===this.colorStops[0].stop&&(this.colorStops[0].stop=0),null===this.colorStops[this.colorStops.length-1].stop&&(this.colorStops[this.colorStops.length-1].stop=1),this.colorStops.forEach(function(a,b){null===a.stop&&this.colorStops.slice(b).some(function(c,d){return 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b=a.getBoundingClientRect(),c=null==a.offsetWidth?b.width:a.offsetWidth;return{top:b.top,bottom:b.bottom||b.top+b.height,right:b.left+c,left:b.left,width:c,height:null==a.offsetHeight?b.height:a.offsetHeight}}return{}}function J(a){var b=a.offsetParent?J(a.offsetParent):{top:0,left:0};return{top:a.offsetTop+b.top,bottom:a.offsetTop+a.offsetHeight+b.top,right:a.offsetLeft+b.left+a.offsetWidth,left:a.offsetLeft+b.left,width:a.offsetWidth,height:a.offsetHeight}}function K(a,b,c,d,e){A("Starting NodeParser"),this.renderer=b,this.options=e,this.range=null,this.support=c,this.renderQueue=[],this.stack=new zb(!0,1,a.ownerDocument,null);var f=new B(a,null);if(a===a.ownerDocument.documentElement){var g=new 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bb(a){return"static"!==a.css("position")}function cb(a){return"none"!==a.css("float")}function db(a){return-1!==["inline-block","inline-table"].indexOf(a.css("display"))}function eb(a){var b=this;return function(){return!a.apply(b,arguments)}}function fb(a){return a.node.nodeType===Node.ELEMENT_NODE}function gb(a){return a.node.nodeType===Node.TEXT_NODE}function hb(a,b){return a.cssInt("zIndex")-b.cssInt("zIndex")}function ib(a){return a.css("opacity")<1}function jb(a,b){return function(){return a.apply(b,arguments)}}function kb(a){return parseInt(a,10)}function lb(a){return a.width}function mb(a){return a.node.nodeType!==Node.ELEMENT_NODE||-1===["SCRIPT","HEAD","TITLE","OBJECT","BR","OPTION"].indexOf(a.node.nodeName)}function nb(a){return[].concat.apply([],a)}function ob(a){var b=a.substr(0,1);return b===a.substr(a.length-1)&&b.match(/'|"/)?a.substr(1,a.length-2):a}function pb(b){for(var 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this.transformMatrix},B.prototype.parseBounds=function(){return this.bounds||(this.bounds=this.hasTransform()?J(this.node):I(this.node))},B.prototype.hasTransform=function(){return"1,0,0,1,0,0"!==this.parseTransformMatrix().join(",")||this.parent&&this.parent.hasTransform()},B.prototype.getValue=function(){var a=this.node.value||"";return a="SELECT"===this.node.tagName?C(this.node):a,0===a.length?this.node.placeholder||"":a},B.prototype.MATRIX_PROPERTY=/(matrix)\((.+)\)/,B.prototype.TEXT_SHADOW_PROPERTY=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g,B.prototype.TEXT_SHADOW_VALUES=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g,K.prototype.calculateOverflowClips=function(){this.nodes.forEach(function(a){if(fb(a)){a.borders=this.parseBorders(a);var b="hidden"===a.css("overflow")?[a.borders.clip]:[];a.clip=L(a)?a.parent.clip.concat(b):b,a.backgroundClip="hidden"!==a.css("overflow")?a.clip.concat([a.borders.clip]):a.clip}else gb(a)&&(a.clip=L(a)?a.parent.clip:[]);a.bounds=null},this)},K.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(jb(function(){this.asyncRenderer(a,b)},this),0)},K.prototype.createPseudoHideStyles=function(a){var b=a.createElement("style");b.innerHTML="."+this.pseudoHideClass+':before { content: "" !important; display: none !important; }.'+this.pseudoHideClass+':after { content: "" !important; display: none !important; }',a.body.appendChild(b)},K.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&&(a.node.insertBefore(c[0].node,a.node.firstChild),b.push(c)),d&&(a.node.appendChild(d[0].node),b.push(d)),(c||d)&&(a.node.className+=" "+this.pseudoHideClass)}return nb(b)},K.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=ob(d.content),f="url"===e.substr(0,3),g=b.createElement(f?"img":"html2canvaspseudoelement"),h=new B(g,a),i=d.length-1;i>=0;i--){var j=M(d.item(i));g.style[j]=d[j]}if(g.className=this.pseudoHideClass,f)return g.src=F(e)[0].args[0],[h];var k=b.createTextNode(e);return g.appendChild(k),[h,new Eb(k,h)]},K.prototype.getChildren=function(a){return nb([].filter.call(a.node.childNodes,_).map(function(b){var c=[b.nodeType===Node.TEXT_NODE?new Eb(b,a):new B(b,a)].filter(mb);return b.nodeType===Node.ELEMENT_NODE&&c.length&&"TEXTAREA"!==b.tagName?c[0].isElementVisible()?c.concat(this.getChildren(c[0])):[]:c},this))},K.prototype.newStackingContext=function(a,b){var c=new zb(b,a.cssFloat("opacity"),a.node,a.parent);c.visible=a.visible,c.borders=a.borders,c.bounds=a.bounds,c.clip=a.clip,c.backgroundClip=a.backgroundClip;var d=b?c.getParentStack(this):c.parent.stack;d.contexts.push(c),a.stack=c},K.prototype.createStackingContexts=function(){this.nodes.forEach(function(a){fb(a)&&(this.isRootElement(a)||ib(a)||ab(a)||this.isBodyWithTransparentRoot(a)||a.hasTransform())?this.newStackingContext(a,!0):fb(a)&&(bb(a)&&V(a)||db(a)||cb(a))?this.newStackingContext(a,!1):a.assignStack(a.parent.stack)},this)},K.prototype.isBodyWithTransparentRoot=function(a){return"BODY"===a.node.nodeName&&this.renderer.isTransparent(a.parent.css("backgroundColor"))},K.prototype.isRootElement=function(a){return null===a.parent},K.prototype.sortStackingContexts=function(a){a.contexts.sort(hb),a.contexts.forEach(this.sortStackingContexts,this)},K.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{}}},K.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?J(c):I(c);return d.replaceChild(e,c),f},K.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()},K.prototype.parse=function(a){var b=a.contexts.filter(T),c=a.children.filter(fb),d=c.filter(eb(cb)),e=d.filter(eb(bb)).filter(eb(W)),f=c.filter(eb(bb)).filter(cb),g=d.filter(eb(bb)).filter(W),h=a.contexts.concat(d.filter(bb)).filter(V),i=a.children.filter(gb).filter(Y),j=a.contexts.filter(U);b.concat(e).concat(f).concat(g).concat(h).concat(i).concat(j).forEach(function(a){this.renderQueue.push(a),X(a)&&(this.parse(a),this.renderQueue.push(new N))},this)},K.prototype.paint=function(a){try{a instanceof N?this.renderer.ctx.restore():gb(a)?this.paintText(a):this.paintNode(a)}catch(b){A(b)}},K.prototype.paintNode=function(a){X(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(lb))},this),this.renderer.clip(a.clip,function(){switch(this.renderer.renderBorders(a.borders.borders),a.node.nodeName){case"svg":case"IFRAME":var c=this.images.get(a.node);c?this.renderer.renderImage(a,b,a.borders,c):A("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):A("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)},K.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){A("html2canvas: Parse: Exception caught in renderFormValue: "+d.message)}});var e=a.parseBounds();c.style.position="absolute",c.style.left=e.left+"px",c.style.top=e.top+"px",c.textContent=a.getValue(),b.body.appendChild(c),this.paintText(new Eb(c.firstChild,a)),b.body.removeChild(c)}},K.prototype.paintText=function(b){b.applyTextTransform();var c=a.html2canvas.punycode.ucs2.decode(b.node.data),d=this.options.letterRendering&&!Z(b)||rb(b.node.data)?c.map(function(b){return a.html2canvas.punycode.ucs2.encode([b])}):pb(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)},K.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"))}},K.prototype.parseBorders=function(a){var b=a.parseBounds(),c=$(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=P(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=R({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=R({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=R({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=R({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})}},K.prototype.parseBackgroundClip=function(a,b,c,d,e){var f=a.css("backgroundClip"),g=[];switch(f){case"content-box":case"padding-box":S(g,d[0],d[1],b.topLeftInner,b.topRightInner,e.left+c[3].width,e.top+c[0].width),S(g,d[1],d[2],b.topRightInner,b.bottomRightInner,e.left+e.width-c[1].width,e.top+c[0].width),S(g,d[2],d[3],b.bottomRightInner,b.bottomLeftInner,e.left+e.width-c[1].width,e.top+e.height-c[2].width),S(g,d[3],d[0],b.bottomLeftInner,b.topLeftInner,e.left+c[3].width,e.top+e.height-c[2].width);break;default:S(g,d[0],d[1],b.topLeftOuter,b.topRightOuter,e.left,e.top),S(g,d[1],d[2],b.topRightOuter,b.bottomRightOuter,e.left+e.width,e.top),S(g,d[2],d[3],b.bottomRightOuter,b.bottomLeftOuter,e.left+e.width,e.top+e.height),S(g,d[3],d[0],b.bottomLeftOuter,b.topLeftOuter,e.left,e.top+e.height)}return g},K.prototype.pseudoHideClass="___html2canvas___pseudoelement";var Nb=0,Ob="withCredentials"in new XMLHttpRequest,Pb="crossOrigin"in new Image;yb.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)},yb.prototype.renderBackground=function(a,b,c){b.height>0&&b.width>0&&(this.renderBackgroundColor(a,b),this.renderBackgroundImage(a,b,c))},yb.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"))},yb.prototype.renderBorders=function(a){a.forEach(this.renderBorder,this)},yb.prototype.renderBorder=function(a){this.isTransparent(a.color)||null===a.args||this.drawShape(a.args,a.color)},yb.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):A("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):A("Error loading background-image",d.args[0]);break;case"none":break;default:A("Unknown background-image type",d.args[0])}},this)},yb.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])}},yb.prototype.isTransparent=function(a){return!a||"transparent"===a||"rgba(0, 0, 0, 0)"===a},zb.prototype=Object.create(B.prototype),zb.prototype.getParentStack=function(a){var b=this.parent?this.parent.stack:null;return b?b.ownStacking?b:b.getParentStack(a):a.stack},Ab.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},Ab.prototype.testCORS=function(){return"undefined"!=typeof(new Image).crossOrigin},Ab.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},Bb.prototype.hasFabric=function(){return html2canvas.fabric?Promise.resolve():Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg"))},Bb.prototype.inlineFormatting=function(a){return/^data:image\/svg\+xml;base64,/.test(a)?this.decode64(this.removeContentType(a)):this.removeContentType(a)},Bb.prototype.removeContentType=function(a){return a.replace(/^data:image\/svg\+xml(;base64)?,/,"")},Bb.prototype.isInline=function(a){return/^data:image\/svg\+xml/i.test(a)},Bb.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)}},Bb.prototype.decode64=function(b){return"function"==typeof a.atob?a.atob(b):Cb(b)},Db.prototype=Object.create(Bb.prototype),Eb.prototype=Object.create(B.prototype),Eb.prototype.applyTextTransform=function(){this.node.data=this.transform(this.parent.css("textTransform"))},Eb.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,Fb);case"uppercase":return b.toUpperCase();default:return b}},Gb.prototype=Object.create(w.prototype),Ib.prototype=Object.create(yb.prototype),Ib.prototype.setFillStyle=function(a){return this.ctx.fillStyle=a,this.ctx},Ib.prototype.rectangle=function(a,b,c,d,e){this.setFillStyle(e).fillRect(a,b,c,d)},Ib.prototype.drawShape=function(a,b){this.shape(a),this.setFillStyle(b).fill()},Ib.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},Ib.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)},Ib.prototype.clip=function(a,b,c){this.ctx.save(),a.filter(Jb).forEach(function(a){this.shape(a).clip()},this),b.call(c),this.ctx.restore()},Ib.prototype.shape=function(a){return this.ctx.beginPath(),a.forEach(function(a,b){this.ctx[0===b?"moveTo":a[0]+"To"].apply(this.ctx,a.slice(1))},this),this.ctx.closePath(),this.ctx},Ib.prototype.font=function(a,b,c,d,e,f){this.setFillStyle(a).font=[b,c,d,e,f].join(" ")},Ib.prototype.fontShadow=function(a,b,c,d){this.setVariable("shadowColor",a).setVariable("shadowOffsetY",b).setVariable("shadowOffsetX",c).setVariable("shadowBlur",d)},Ib.prototype.clearShadow=function(){this.setVariable("shadowColor","rgba(0,0,0,0)")},Ib.prototype.setOpacity=function(a){this.ctx.globalAlpha=a},Ib.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])},Ib.prototype.setVariable=function(a,b){return this.variables[a]!==b&&(this.variables[a]=this.ctx[a]=b),this},Ib.prototype.text=function(a,b,c){this.ctx.fillText(a,b,c)},Ib.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)},Ib.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)},Ib.prototype.renderBackgroundGradient=function(a,b){if(a instanceof z){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)}},Ib.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}}(window,document); |