mirror of
https://github.com/niklasvh/html2canvas.git
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8 lines
46 KiB
JavaScript
8 lines
46 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 i(a,c,d,b).then(function(h){t("Document cloned");var i="["+wb+"='true']";a.querySelector(i).removeAttribute(wb);var j=h.contentWindow,k=j.document.querySelector(i),l=new nb(j.document),m=new r(b,l),n=B(k),o=null!=b.width?b.width:"view"===b.type?Math.min(n.width,c):f(),p=null!=b.height?b.height:"view"===b.type?Math.min(n.height,d):g(),q=new vb(o,p,m,b,a),s=new D(k,q,l,m,b);return s.ready.then(function(){t("Finished rendering");var a="view"===b.type||k!==j.document.body&&k!==j.document.documentElement?e(q.canvas,n):q.canvas;return b.removeContainer&&(h.parentNode.removeChild(h),t("Cleaned up container")),a})})}function e(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 t("Cropping canvas at:","left:",c.left,"top:",c.top,"width:",c.width,"height:",c.height),t("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 f(){return Math.max(Math.max(b.body.scrollWidth,b.documentElement.scrollWidth),Math.max(b.body.offsetWidth,b.documentElement.offsetWidth),Math.max(b.body.clientWidth,b.documentElement.clientWidth))}function g(){return Math.max(Math.max(b.body.scrollHeight,b.documentElement.scrollHeight),Math.max(b.body.offsetHeight,b.documentElement.offsetHeight),Math.max(b.body.clientHeight,b.documentElement.clientHeight))}function h(){return"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"}function i(b,c,d,e){var f=b.documentElement.cloneNode(!0),g=b.createElement("iframe");return g.style.visibility="hidden",g.style.position="absolute",g.style.left=g.style.top="-10000px",g.width=c,g.height=d,g.scrolling="no",b.body.appendChild(g),new Promise(function(b){var c=g.contentWindow.document;g.contentWindow.onload=g.onload=function(){b(g)},c.open(),c.write("<!DOCTYPE html>"),c.close(),c.replaceChild(j(c.adoptNode(f)),c.documentElement),"view"===e.type&&g.contentWindow.scrollTo(a.pageXOffset,a.pageYOffset)})}function j(a){return[].slice.call(a.childNodes,0).filter(k).forEach(function(b){"SCRIPT"===b.tagName?a.removeChild(b):j(b)}),a}function k(a){return a.nodeType===Node.ELEMENT_NODE}function l(a){if(this.src=a,t("DummyImageContainer for",a),!this.promise||!this.image){t("Initiating DummyImageContainer"),l.prototype.image=new Image;var b=this.image;l.prototype.promise=new Promise(function(a,c){b.onload=a,b.onerror=c,b.src=h(),b.complete===!0&&a(b)})}}function m(a,c){var d,e,f=b.createElement("div"),g=b.createElement("img"),i=b.createElement("span"),j="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=h(),g.width=1,g.height=1,g.style.margin=0,g.style.padding=0,g.style.verticalAlign="baseline",i.style.fontFamily=a,i.style.fontSize=c,i.style.margin=0,i.style.padding=0,i.appendChild(b.createTextNode(j)),f.appendChild(i),f.appendChild(g),d=g.offsetTop-i.offsetTop+1,f.removeChild(i),f.appendChild(b.createTextNode(j)),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 n(){this.data={}}function o(a){this.image=null,this.src=a;var b=this,c=B(a);this.promise=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)}).then(function(a){return html2canvas(a.contentWindow.document.documentElement,{width:c.width,height:c.height})}).then(function(a){return b.image=a})}function p(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 q(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)})["catch"](function(){var b=new l(a);return b.promise.then(function(a){c.image=a})})}function r(b,c){this.link=null,this.options=b,this.support=c,this.origin=a.location.protocol+a.location.hostname+a.location.port}function s(a){p.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;break;default:var d=a.match(this.angleRegExp);if(d)switch(d[2]){case"deg":var e=parseFloat(d[1]),f=e/(180/Math.PI),g=Math.tan(f);this.y0=2/Math.tan(g)/2,this.x0=0,this.x1=1,this.y1=0}}},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 null!==c.stop?(a.stop=(c.stop-this.colorStops[b-1].stop)/(d+1)+this.colorStops[b-1].stop,!0):!1},this)},this)}function t(){a.html2canvas.logging&&a.console&&a.console.log&&Function.prototype.bind.call(a.console.log,a.console).apply(a.console,[Date.now()-a.html2canvas.start+"ms","html2canvas:"].concat([].slice.call(arguments,0)))}function u(a,b){this.node=a,this.parent=b,this.stack=null,this.bounds=null,this.offsetBounds=null,this.visible=null,this.computedStyles=null,this.styles={},this.backgroundImages=null,this.transformData=null,this.transformMatrix=null}function v(a){var b=a.options[a.selectedIndex||0];return b?b.text||"":""}function w(a){return a&&"matrix"===a[1]?a[2].split(",").map(function(a){return parseFloat(a.trim())}):void 0}function x(a){return-1!==a.toString().indexOf("%")}function y(a){var b,c,d,e,f,g,h,i=" \r\n ",j=[],k=0,l=0,m=function(){b&&('"'===c.substr(0,1)&&(c=c.substr(1,c.length-2)),c&&h.push(c),"-"===b.substr(0,1)&&(e=b.indexOf("-",1)+1)>0&&(d=b.substr(0,e),b=b.substr(e)),j.push({prefix:d,method:b.toLowerCase(),value:f,args:h,image:null})),h=[],b=d=c=f=""};return h=[],b=d=c=f="",a.split("").forEach(function(a){if(!(0===k&&i.indexOf(a)>-1)){switch(a){case'"':g?g===a&&(g=null):g=a;break;case"(":if(g)break;if(0===k)return k=1,void(f+=a);l++;break;case")":if(g)break;if(1===k){if(0===l)return k=0,f+=a,void m();l--}break;case",":if(g)break;if(0===k)return void m();if(1===k&&0===l&&!b.match(/^url$/i))return h.push(c),c="",void(f+=a)}f+=a,0===k?b+=a:c+=a}}),m(),j}function z(a){return a.replace("px","")}function A(a){return parseFloat(a)}function B(a){if(a.getBoundingClientRect){var b=a.getBoundingClientRect(),c="BODY"===a.nodeName,d=c?a.scrollWidth:null==a.offsetWidth?b.width:a.offsetWidth;return{top:b.top,bottom:b.bottom||b.top+b.height,right:b.left+d,left:b.left,width:d,height:c?a.scrollHeight:null==a.offsetHeight?b.height:a.offsetHeight}}return{}}function C(a){var b=a.offsetParent?C(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 D(a,b,c,d,e){t("Starting NodeParser"),this.renderer=b,this.options=e,this.range=null,this.support=c,this.renderQueue=[],this.stack=new mb(!0,1,a.ownerDocument,null);var f=new u(a,null);a!==a.ownerDocument.documentElement&&this.renderer.isTransparent(f.css("backgroundColor"))&&b.rectangle(0,0,b.width,b.height,new u(a.ownerDocument.documentElement,null).css("backgroundColor")),f.visibile=f.isElementVisible(),this.createPseudoHideStyles(a.ownerDocument),this.nodes=fb([f].concat(this.getChildren(f)).filter(function(a){return a.visible=a.isElementVisible()}).map(this.getPseudoElements,this)),this.fontMetrics=new n,t("Fetched nodes"),this.images=d.fetch(this.nodes.filter(Z)),t("Creating stacking contexts"),this.createStackingContexts(),t("Sorting stacking contexts"),this.sortStackingContexts(this.stack),this.ready=this.images.ready.then(bb(function(){return t("Images loaded, starting parsing"),this.parse(this.stack),t("Render queue created with "+this.renderQueue.length+" items"),new Promise(bb(function(a){e.async?"function"==typeof e.async?e.async.call(this,this.renderQueue,a):(this.renderIndex=0,this.asyncRenderer(this.renderQueue,a)):(this.renderQueue.forEach(this.paint,this),a())},this))},this))}function E(a){return a.replace(/(\-[a-z])/g,function(a){return a.toUpperCase().replace("-","")})}function F(){}function G(a,b,c,d){var e=4*((Math.sqrt(2)-1)/3),f=c*e,g=d*e,h=a+c,i=b+d;return{topLeft:I({x:a,y:i},{x:a,y:i-g},{x:h-f,y:b},{x:h,y:b}),topRight:I({x:a,y:b},{x:a+f,y:b},{x:h,y:i-g},{x:h,y:i}),bottomRight:I({x:h,y:b},{x:h,y:b+g},{x:a+f,y:i},{x:a,y:i}),bottomLeft:I({x:h,y:i},{x:h-f,y:i},{x:a,y:b+g},{x:a,y:b})}}function H(a,b,c){var d=a.left,e=a.top,f=a.width,g=a.height,h=b[0][0],i=b[0][1],j=b[1][0],k=b[1][1],l=b[2][0],m=b[2][1],n=b[3][0],o=b[3][1],p=f-j,q=g-m,r=f-l,s=g-o;return{topLeftOuter:G(d,e,h,i).topLeft.subdivide(.5),topLeftInner:G(d+c[3].width,e+c[0].width,Math.max(0,h-c[3].width),Math.max(0,i-c[0].width)).topLeft.subdivide(.5),topRightOuter:G(d+p,e,j,k).topRight.subdivide(.5),topRightInner:G(d+Math.min(p,f+c[3].width),e+c[0].width,p>f+c[3].width?0:j-c[3].width,k-c[0].width).topRight.subdivide(.5),bottomRightOuter:G(d+r,e+q,l,m).bottomRight.subdivide(.5),bottomRightInner:G(d+Math.min(r,f+c[3].width),e+Math.min(q,g+c[0].width),Math.max(0,l-c[1].width),Math.max(0,m-c[2].width)).bottomRight.subdivide(.5),bottomLeftOuter:G(d,e+s,n,o).bottomLeft.subdivide(.5),bottomLeftInner:G(d+c[3].width,e+s,Math.max(0,n-c[3].width),Math.max(0,o-c[2].width)).bottomLeft.subdivide(.5)}}function I(a,b,c,d){var e=function(a,b,c){return{x:a.x+(b.x-a.x)*c,y:a.y+(b.y-a.y)*c}};return{start:a,startControl:b,endControl:c,end:d,subdivide:function(f){var g=e(a,b,f),h=e(b,c,f),i=e(c,d,f),j=e(g,h,f),k=e(h,i,f),l=e(j,k,f);return[I(a,g,j,l),I(l,k,i,d)]},curveTo:function(a){a.push(["bezierCurve",b.x,b.y,c.x,c.y,d.x,d.y])},curveToReversed:function(d){d.push(["bezierCurve",c.x,c.y,b.x,b.y,a.x,a.y])}}}function J(a,b,c,d,e,f,g){var h=[];return b[0]>0||b[1]>0?(h.push(["line",d[1].start.x,d[1].start.y]),d[1].curveTo(h)):h.push(["line",a.c1[0],a.c1[1]]),c[0]>0||c[1]>0?(h.push(["line",f[0].start.x,f[0].start.y]),f[0].curveTo(h),h.push(["line",g[0].end.x,g[0].end.y]),g[0].curveToReversed(h)):(h.push(["line",a.c2[0],a.c2[1]]),h.push(["line",a.c3[0],a.c3[1]])),b[0]>0||b[1]>0?(h.push(["line",e[1].end.x,e[1].end.y]),e[1].curveToReversed(h)):h.push(["line",a.c4[0],a.c4[1]]),h}function K(a,b,c,d,e,f,g){b[0]>0||b[1]>0?(a.push(["line",d[0].start.x,d[0].start.y]),d[0].curveTo(a),d[1].curveTo(a)):a.push(["line",f,g]),(c[0]>0||c[1]>0)&&a.push(["line",e[0].start.x,e[0].start.y])}function L(a){return a.cssInt("zIndex")<0}function M(a){return a.cssInt("zIndex")>0}function N(a){return 0===a.cssInt("zIndex")}function O(a){return-1!==["inline","inline-block","inline-table"].indexOf(a.css("display"))}function P(a){return a instanceof mb}function Q(a){return a.node.data.trim().length>0}function R(a){return/^(normal|none|0px)$/.test(a.parent.css("letterSpacing"))}function S(a){return["TopLeft","TopRight","BottomRight","BottomLeft"].map(function(b){var c=a.css("border"+b+"Radius"),d=c.split(" ");return d.length<=1&&(d[1]=d[0]),d.map(cb)})}function T(a){return a.nodeType===Node.TEXT_NODE||a.nodeType===Node.ELEMENT_NODE}function U(a){var b=a.css("position"),c="absolute"===b||"relative"===b?a.css("zIndex"):"auto";return"auto"!==c}function V(a){return"static"!==a.css("position")}function W(a){return"none"!==a.css("float")}function X(a){return-1!==["inline-block","inline-table"].indexOf(a.css("display"))}function Y(a){var b=this;return function(){return!a.apply(b,arguments)}}function Z(a){return a.node.nodeType===Node.ELEMENT_NODE}function $(a){return a.node.nodeType===Node.TEXT_NODE}function _(a,b){return a.cssInt("zIndex")-b.cssInt("zIndex")}function ab(a){return a.css("opacity")<1}function bb(a,b){return function(){return a.apply(b,arguments)}}function cb(a){return parseInt(a,10)}function db(a){return a.width}function eb(a){return a.node.nodeType!==Node.ELEMENT_NODE||-1===["SCRIPT","HEAD","TITLE","OBJECT","BR","OPTION"].indexOf(a.node.nodeName)}function fb(a){return[].concat.apply([],a)}function gb(a){var b=a.substr(0,1);return b===a.substr(a.length-1)&&b.match(/'|"/)?a.substr(1,a.length-2):a}function hb(b){for(var c,d=[],e=0,f=!1;b.length;)ib(b[e])===f?(c=b.splice(0,e),c.length&&d.push(a.html2canvas.punycode.ucs2.encode(c)),f=!f,e=0):e++,e>=b.length&&(c=b.splice(0,e),c.length&&d.push(a.html2canvas.punycode.ucs2.encode(c)));return d}function ib(a){return-1!==[32,13,10,9,45].indexOf(a)}function jb(a){return/[^\u0000-\u00ff]/.test(a)}function kb(d,e){var f="html2canvas_"+xb++,g=b.createElement("script"),h=b.createElement("a");h.href=d,d=h.href;var i=e+(e.indexOf("?")>-1?"&":"?")+"url="+encodeURIComponent(d)+"&callback="+f;this.src=d,this.image=new Image;var j=this;this.promise=new Promise(function(d,e){j.image.onload=d,j.image.onerror=e,a[f]=function(b){"error:"===b.substring(0,6)?e():j.image.src=b,a[f]=c;try{delete a[f]}catch(d){}g.parentNode.removeChild(g)},g.setAttribute("type","text/javascript"),g.setAttribute("src",i),b.body.appendChild(g)})["catch"](function(){var a=new l(d);return a.promise.then(function(a){j.image=a})})}function lb(a,b,c,d,e){this.width=a,this.height=b,this.images=c,this.options=d,this.document=e}function mb(a,b,c,d){u.call(this,c,d),this.ownStacking=a,this.contexts=[],this.children=[],this.opacity=(this.parent?this.parent.stack.opacity:1)*b}function nb(a){this.rangeBounds=this.testRangeBounds(a),this.cors=this.testCORS(),this.svg=this.testSVG()}function ob(a){this.src=a,this.image=null;var b=this;this.promise=this.hasFabric().then(function(){return b.isInline(a)?Promise.resolve(b.inlineFormatting(a)):ub(a)}).then(function(a){return new Promise(function(c){html2canvas.fabric.loadSVGFromString(a,b.createCanvas.call(b,c))})})}function pb(a){var b,c,d,e,f,g,h,i,j="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",k=a.length,l="";for(b=0;k>b;b+=4)c=j.indexOf(a[b]),d=j.indexOf(a[b+1]),e=j.indexOf(a[b+2]),f=j.indexOf(a[b+3]),g=c<<2|d>>4,h=(15&d)<<4|e>>2,i=(3&e)<<6|f,l+=64===e?String.fromCharCode(g):64===f||-1===f?String.fromCharCode(g,h):String.fromCharCode(g,h,i);return l}function qb(a){this.src=a,this.image=null;var b=this;this.promise=this.hasFabric().then(function(){return new Promise(function(c){html2canvas.fabric.parseSVGDocument(a,b.createCanvas.call(b,c))})})}function rb(a,b){u.call(this,a,b)}function sb(a,b,c){return a.length>0?b+c.toUpperCase():void 0}function tb(a){p.apply(this,arguments),this.type="linear"===a.args[0]?this.TYPES.LINEAR:this.TYPES.RADIAL}function ub(a){return new Promise(function(b,c){var d=new XMLHttpRequest;d.open("GET",a),d.onload=function(){200===d.status?b(d.responseText):c(new Error(d.statusText))},d.onerror=function(){c(new Error("Network Error"))},d.send()})}function vb(a,b){lb.apply(this,arguments),this.canvas=this.document.createElement("canvas"),this.canvas.width=a,this.canvas.height=b,this.ctx=this.canvas.getContext("2d"),this.taintCtx=this.document.createElement("canvas").getContext("2d"),this.ctx.textBaseline="bottom",this.variables={},t("Initialized CanvasRenderer")}if(!function(){var c,d,e,f;!function(){var 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d=b?c.getParentStack(this):c.parent.stack;d.contexts.push(c),a.stack=c},D.prototype.createStackingContexts=function(){this.nodes.forEach(function(a){Z(a)&&(this.isRootElement(a)||ab(a)||U(a)||this.isBodyWithTransparentRoot(a)||a.hasTransform())?this.newStackingContext(a,!0):Z(a)&&(V(a)&&N(a)||X(a)||W(a))?this.newStackingContext(a,!1):a.assignStack(a.parent.stack)},this)},D.prototype.isBodyWithTransparentRoot=function(a){return"BODY"===a.node.nodeName&&this.renderer.isTransparent(a.parent.css("backgroundColor"))},D.prototype.isRootElement=function(a){return null===a.parent},D.prototype.sortStackingContexts=function(a){a.contexts.sort(_),a.contexts.forEach(this.sortStackingContexts,this)},D.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{}}},D.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?C(c):B(c);return d.replaceChild(e,c),f},D.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()},D.prototype.parse=function(a){var b=a.contexts.filter(L),c=a.children.filter(Z),d=c.filter(Y(W)),e=d.filter(Y(V)).filter(Y(O)),f=c.filter(Y(V)).filter(W),g=d.filter(Y(V)).filter(O),h=a.contexts.concat(d.filter(V)).filter(N),i=a.children.filter($).filter(Q),j=a.contexts.filter(M);b.concat(e).concat(f).concat(g).concat(h).concat(i).concat(j).forEach(function(a){this.renderQueue.push(a),P(a)&&(this.parse(a),this.renderQueue.push(new F))},this)},D.prototype.paint=function(a){try{a instanceof F?this.renderer.ctx.restore():$(a)?this.paintText(a):this.paintNode(a)}catch(b){t(b)}},D.prototype.paintNode=function(a){P(a)&&(this.renderer.setOpacity(a.opacity),this.renderer.ctx.save(),a.hasTransform()&&this.renderer.setTransform(a.parseTransform()));var b=a.parseBounds(),c=this.parseBorders(a);switch(this.renderer.clip(c.clip,function(){this.renderer.renderBackground(a,b,c.borders.map(db))},this),this.renderer.renderBorders(c.borders),a.node.nodeName){case"svg":case"IFRAME":var d=this.images.get(a.node);d?this.renderer.renderImage(a,b,c,d):t("Error loading <"+a.node.nodeName+">",a.node);break;case"IMG":var e=this.images.get(a.node.src);e?this.renderer.renderImage(a,b,c,e):t("Error loading <img>",a.node.src);break;case"SELECT":case"INPUT":case"TEXTAREA":this.paintFormValue(a)}},D.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){t("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 rb(c.firstChild,a)),b.body.removeChild(c)}},D.prototype.paintText=function(b){b.applyTextTransform();var c=a.html2canvas.punycode.ucs2.decode(b.node.data),d=this.options.letterRendering&&!R(b)||jb(b.node.data)?c.map(function(b){return a.html2canvas.punycode.ucs2.encode([b])}):hb(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(),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)},D.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"))}},D.prototype.parseBorders=function(a){var b=a.bounds,c=S(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=H(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=J({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=J({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=J({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=J({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})}},D.prototype.parseBackgroundClip=function(a,b,c,d,e){var f=a.css("backgroundClip"),g=[];switch(f){case"content-box":case"padding-box":K(g,d[0],d[1],b.topLeftInner,b.topRightInner,e.left+c[3].width,e.top+c[0].width),K(g,d[1],d[2],b.topRightInner,b.bottomRightInner,e.left+e.width-c[1].width,e.top+c[0].width),K(g,d[2],d[3],b.bottomRightInner,b.bottomLeftInner,e.left+e.width-c[1].width,e.top+e.height-c[2].width),K(g,d[3],d[0],b.bottomLeftInner,b.topLeftInner,e.left+c[3].width,e.top+e.height-c[2].width);break;default:K(g,d[0],d[1],b.topLeftOuter,b.topRightOuter,e.left,e.top),K(g,d[1],d[2],b.topRightOuter,b.bottomRightOuter,e.left+e.width,e.top),K(g,d[2],d[3],b.bottomRightOuter,b.bottomLeftOuter,e.left+e.width,e.top+e.height),K(g,d[3],d[0],b.bottomLeftOuter,b.topLeftOuter,e.left,e.top+e.height)}return g},D.prototype.pseudoHideClass="___html2canvas___pseudoelement";var xb=0;lb.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)},lb.prototype.renderBackground=function(a,b,c){b.height>0&&b.width>0&&(this.renderBackgroundColor(a,b),this.renderBackgroundImage(a,b,c))},lb.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"))},lb.prototype.renderBorders=function(a){a.forEach(this.renderBorder,this)},lb.prototype.renderBorder=function(a){this.isTransparent(a.color)||null===a.args||this.drawShape(a.args,a.color)},lb.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):t("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):t("Error loading background-image",d.args[0]);break;case"none":break;default:t("Unknown background-image type",d.args[0])}},this)},lb.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,c.image.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],c.image.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],c.image.width,c.image.height,e);break;default:this.renderBackgroundRepeat(c,g,f,{top:b.top,left:b.left},e[3],e[0])}},lb.prototype.isTransparent=function(a){return!a||"transparent"===a||"rgba(0, 0, 0, 0)"===a},mb.prototype=Object.create(u.prototype),mb.prototype.getParentStack=function(a){var b=this.parent?this.parent.stack:null;return b?b.ownStacking?b:b.getParentStack(a):a.stack},nb.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},nb.prototype.testCORS=function(){return"undefined"!=typeof(new Image).crossOrigin},nb.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},ob.prototype.hasFabric=function(){return html2canvas.fabric?Promise.resolve():Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg"))},ob.prototype.inlineFormatting=function(a){return/^data:image\/svg\+xml;base64,/.test(a)?this.decode64(this.removeContentType(a)):this.removeContentType(a)},ob.prototype.removeContentType=function(a){return a.replace(/^data:image\/svg\+xml(;base64)?,/,"")},ob.prototype.isInline=function(a){return/^data:image\/svg\+xml/i.test(a)},ob.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)}},ob.prototype.decode64=function(b){return"function"==typeof a.atob?a.atob(b):pb(b)},qb.prototype=Object.create(ob.prototype),rb.prototype=Object.create(u.prototype),rb.prototype.applyTextTransform=function(){this.node.data=this.transform(this.parent.css("textTransform"))},rb.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,sb);case"uppercase":return b.toUpperCase();default:return b}},tb.prototype=Object.create(p.prototype),vb.prototype=Object.create(lb.prototype),vb.prototype.setFillStyle=function(a){return this.ctx.fillStyle=a,this.ctx},vb.prototype.rectangle=function(a,b,c,d,e){this.setFillStyle(e).fillRect(a,b,c,d)},vb.prototype.drawShape=function(a,b){this.shape(a),this.setFillStyle(b).fill()},vb.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},vb.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)},vb.prototype.clip=function(a,b,c){this.ctx.save(),this.shape(a).clip(),b.call(c),this.ctx.restore()},vb.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},vb.prototype.font=function(a,b,c,d,e,f){this.setFillStyle(a).font=[b,c,d,e,f].join(" ")},vb.prototype.fontShadow=function(a,b,c,d){this.setVariable("shadowColor",a).setVariable("shadowOffsetY",b).setVariable("shadowOffsetX",c).setVariable("shadowBlur",d)},vb.prototype.clearShadow=function(){this.setVariable("shadowColor","rgba(0,0,0,0)")},vb.prototype.setOpacity=function(a){this.ctx.globalAlpha=a},vb.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])},vb.prototype.setVariable=function(a,b){return this.variables[a]!==b&&(this.variables[a]=this.ctx[a]=b),this},vb.prototype.text=function(a,b,c){this.ctx.fillText(a,b,c)},vb.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)},vb.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)},vb.prototype.renderBackgroundGradient=function(a,b){if(a instanceof s){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)}},vb.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); |