mirror of
https://github.com/niklasvh/html2canvas.git
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8 lines
37 KiB
JavaScript
8 lines
37 KiB
JavaScript
/*
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html2canvas 0.4.1 <http://html2canvas.hertzen.com>
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Copyright (c) 2013 Niklas von Hertzen
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Released under MIT License
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*/
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(function(t,e,n){"use strict";function r(t,e,n){var r,a=t.runtimeStyle&&t.runtimeStyle[e],o=t.style;return!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(n)&&/^-?\d/.test(n)&&(r=o.left,a&&(t.runtimeStyle.left=t.currentStyle.left),o.left="fontSize"===e?"1em":n||0,n=o.pixelLeft+"px",o.left=r,a&&(t.runtimeStyle.left=a)),/^(thin|medium|thick)$/i.test(n)?n:Math.round(parseFloat(n))+"px"}function a(t){return parseInt(t,10)}function o(t){return-1!==(""+t).indexOf("%")}function i(t,e,a,o){if(t=(t||"").split(","),t=t[o||0]||t[0]||"auto",t=d.Util.trimText(t).split(" "),"backgroundSize"===a&&t[0]&&t[0].match(/^(cover|contain|auto)$/))return t;if(t[0]=-1===t[0].indexOf("%")?r(e,a+"X",t[0]):t[0],t[1]===n){if("backgroundSize"===a)return t[1]="auto",t;t[1]=t[0]}return t[1]=-1===t[1].indexOf("%")?r(e,a+"Y",t[1]):t[1],t}function l(t,e){var n=[];return{storage:n,width:t,height:e,clip:function(){n.push({type:"function",name:"clip",arguments:arguments})},translate:function(){n.push({type:"function",name:"translate",arguments:arguments})},fill:function(){n.push({type:"function",name:"fill",arguments:arguments})},save:function(){n.push({type:"function",name:"save",arguments:arguments})},restore:function(){n.push({type:"function",name:"restore",arguments:arguments})},fillRect:function(){n.push({type:"function",name:"fillRect",arguments:arguments})},createPattern:function(){n.push({type:"function",name:"createPattern",arguments:arguments})},drawShape:function(){var t=[];return n.push({type:"function",name:"drawShape",arguments:t}),{moveTo:function(){t.push({name:"moveTo",arguments:arguments})},lineTo:function(){t.push({name:"lineTo",arguments:arguments})},arcTo:function(){t.push({name:"arcTo",arguments:arguments})},bezierCurveTo:function(){t.push({name:"bezierCurveTo",arguments:arguments})},quadraticCurveTo:function(){t.push({name:"quadraticCurveTo",arguments:arguments})}}},drawImage:function(){n.push({type:"function",name:"drawImage",arguments:arguments})},fillText:function(){n.push({type:"function",name:"fillText",arguments:arguments})},setVariable:function(t,e){return n.push({type:"variable",name:t,arguments:e}),e}}}var s,c,d={};d.Util={},d.Util.log=function(e){d.logging&&t.console&&t.console.log&&t.console.log(e)},d.Util.trimText=function(t){return function(e){return t?t.apply(e):((e||"")+"").replace(/^\s+|\s+$/g,"")}}(String.prototype.trim),d.Util.asFloat=function(t){return parseFloat(t)},function(){var t=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g,e=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;d.Util.parseTextShadows=function(n){if(!n||"none"===n)return[];for(var r=n.match(t),a=[],o=0;r&&r.length>o;o++){var i=r[o].match(e);a.push({color:i[0],offsetX:i[1]?i[1].replace("px",""):0,offsetY:i[2]?i[2].replace("px",""):0,blur:i[3]?i[3].replace("px",""):0})}return a}}(),d.Util.parseBackgroundImage=function(t){var e,n,r,a,o,i,l,s,c=" \r\n ",d=[],h=0,u=0,f=function(){e&&('"'===n.substr(0,1)&&(n=n.substr(1,n.length-2)),n&&s.push(n),"-"===e.substr(0,1)&&(a=e.indexOf("-",1)+1)>0&&(r=e.substr(0,a),e=e.substr(a)),d.push({prefix:r,method:e.toLowerCase(),value:o,args:s})),s=[],e=r=n=o=""};f();for(var p=0,g=t.length;g>p;p++)if(i=t[p],!(0===h&&c.indexOf(i)>-1)){switch(i){case'"':l?l===i&&(l=null):l=i;break;case"(":if(l)break;if(0===h){h=1,o+=i;continue}u++;break;case")":if(l)break;if(1===h){if(0===u){h=0,o+=i,f();continue}u--}break;case",":if(l)break;if(0===h){f();continue}if(1===h&&0===u&&!e.match(/^url$/i)){s.push(n),n="",o+=i;continue}}o+=i,0===h?e+=i:n+=i}return f(),d},d.Util.Bounds=function(t){var e,n={};return t.getBoundingClientRect&&(e=t.getBoundingClientRect(),n.top=e.top,n.bottom=e.bottom||e.top+e.height,n.left=e.left,n.width=t.offsetWidth,n.height=t.offsetHeight),n},d.Util.OffsetBounds=function(t){var e=t.offsetParent?d.Util.OffsetBounds(t.offsetParent):{top:0,left:0};return{top:t.offsetTop+e.top,bottom:t.offsetTop+t.offsetHeight+e.top,left:t.offsetLeft+e.left,width:t.offsetWidth,height:t.offsetHeight}},d.Util.getCSS=function(t,n,r){s!==t&&(c=e.defaultView.getComputedStyle(t,null));var o=c[n];if(/^background(Size|Position)$/.test(n))return i(o,t,n,r);if(/border(Top|Bottom)(Left|Right)Radius/.test(n)){var l=o.split(" ");return 1>=l.length&&(l[1]=l[0]),l.map(a)}return o},d.Util.resizeBounds=function(t,e,n,r,a){var o,i,l=n/r,s=t/e;return a&&"auto"!==a?s>l^"contain"===a?(i=r,o=r*s):(o=n,i=n/s):(o=n,i=r),{width:o,height:i}},d.Util.BackgroundPosition=function(t,e,n,r,a){var i,l,s=d.Util.getCSS(t,"backgroundPosition",r);return 1===s.length&&(s=[s[0],s[0]]),i=o(s[0])?(e.width-(a||n).width)*(parseFloat(s[0])/100):parseInt(s[0],10),l="auto"===s[1]?i/n.width*n.height:o(s[1])?(e.height-(a||n).height)*parseFloat(s[1])/100:parseInt(s[1],10),"auto"===s[0]&&(i=l/n.height*n.width),{left:i,top:l}},d.Util.BackgroundSize=function(t,e,n,r){var a,i,l=d.Util.getCSS(t,"backgroundSize",r);if(1===l.length&&(l=[l[0],l[0]]),o(l[0]))a=e.width*parseFloat(l[0])/100;else{if(/contain|cover/.test(l[0]))return d.Util.resizeBounds(n.width,n.height,e.width,e.height,l[0]);a=parseInt(l[0],10)}return i="auto"===l[0]&&"auto"===l[1]?n.height:"auto"===l[1]?a/n.width*n.height:o(l[1])?e.height*parseFloat(l[1])/100:parseInt(l[1],10),"auto"===l[0]&&(a=i/n.height*n.width),{width:a,height:i}},d.Util.BackgroundRepeat=function(t,e){var n=d.Util.getCSS(t,"backgroundRepeat").split(",").map(d.Util.trimText);return n[e]||n[0]},d.Util.Extend=function(t,e){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e},d.Util.Children=function(t){var e;try{e=t.nodeName&&"IFRAME"===t.nodeName.toUpperCase()?t.contentDocument||t.contentWindow.document:function(t){var e=[];return null!==t&&function(t,e){var r=t.length,a=0;if("number"==typeof e.length)for(var o=e.length;o>a;a++)t[r++]=e[a];else for(;e[a]!==n;)t[r++]=e[a++];return t.length=r,t}(e,t),e}(t.childNodes)}catch(r){d.Util.log("html2canvas.Util.Children failed with exception: "+r.message),e=[]}return e},d.Util.isTransparent=function(t){return!t||"transparent"===t||"rgba(0, 0, 0, 0)"===t},d.Util.Font=function(){var t={};return function(e,r,a){if(t[e+"-"+r]!==n)return t[e+"-"+r];var o,i,l,s=a.createElement("div"),c=a.createElement("img"),d=a.createElement("span"),h="Hidden Text";return s.style.visibility="hidden",s.style.fontFamily=e,s.style.fontSize=r,s.style.margin=0,s.style.padding=0,a.body.appendChild(s),c.src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=",c.width=1,c.height=1,c.style.margin=0,c.style.padding=0,c.style.verticalAlign="baseline",d.style.fontFamily=e,d.style.fontSize=r,d.style.margin=0,d.style.padding=0,d.appendChild(a.createTextNode(h)),s.appendChild(d),s.appendChild(c),o=c.offsetTop-d.offsetTop+1,s.removeChild(d),s.appendChild(a.createTextNode(h)),s.style.lineHeight="normal",c.style.verticalAlign="super",i=c.offsetTop-s.offsetTop+1,l={baseline:o,lineWidth:1,middle:i},t[e+"-"+r]=l,a.body.removeChild(s),l}}(),function(){function t(t){return function(e){try{t.addColorStop(e.stop,e.color)}catch(r){n.log(["failed to add color stop: ",r,"; tried to add: ",e])}}}var n=d.Util,r={};d.Generate=r;var a=[/^(-webkit-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-gradient)\((linear|radial),\s((?:\d{1,3}%?)\s(?:\d{1,3}%?),\s(?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)\-]+)\)$/,/^(-moz-linear-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-moz-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s?([a-z\-]*)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/];r.parseGradient=function(t,e){var n,r,o,i,l,s,c,d,h,u,f,p,g=a.length;for(r=0;g>r&&!(o=t.match(a[r]));r+=1);if(o)switch(o[1]){case"-webkit-linear-gradient":case"-o-linear-gradient":if(n={type:"linear",x0:null,y0:null,x1:null,y1:null,colorStops:[]},l=o[2].match(/\w+/g))for(s=l.length,r=0;s>r;r+=1)switch(l[r]){case"top":n.y0=0,n.y1=e.height;break;case"right":n.x0=e.width,n.x1=0;break;case"bottom":n.y0=e.height,n.y1=0;break;case"left":n.x0=0,n.x1=e.width}if(null===n.x0&&null===n.x1&&(n.x0=n.x1=e.width/2),null===n.y0&&null===n.y1&&(n.y0=n.y1=e.height/2),l=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),d[2]?(i=parseFloat(d[2]),i/="%"===d[3]?100:e.width):i=r*c,n.colorStops.push({color:d[1],stop:i});break;case"-webkit-gradient":if(n={type:"radial"===o[2]?"circle":o[2],x0:0,y0:0,x1:0,y1:0,colorStops:[]},l=o[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.x0=l[1]*e.width/100,n.y0=l[2]*e.height/100,n.x1=l[3]*e.width/100,n.y1=l[4]*e.height/100),l=o[4].match(/((?:from|to|color-stop)\((?:[0-9\.]+,\s)?(?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)\))+/g))for(s=l.length,r=0;s>r;r+=1)d=l[r].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/),i=parseFloat(d[2]),"from"===d[1]&&(i=0),"to"===d[1]&&(i=1),n.colorStops.push({color:d[3],stop:i});break;case"-moz-linear-gradient":if(n={type:"linear",x0:0,y0:0,x1:0,y1:0,colorStops:[]},l=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.x0=l[1]*e.width/100,n.y0=l[2]*e.height/100,n.x1=e.width-n.x0,n.y1=e.height-n.y0),l=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/),d[2]?(i=parseFloat(d[2]),d[3]&&(i/=100)):i=r*c,n.colorStops.push({color:d[1],stop:i});break;case"-webkit-radial-gradient":case"-moz-radial-gradient":case"-o-radial-gradient":if(n={type:"circle",x0:0,y0:0,x1:e.width,y1:e.height,cx:0,cy:0,rx:0,ry:0,colorStops:[]},l=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/),l&&(n.cx=l[1]*e.width/100,n.cy=l[2]*e.height/100),l=o[3].match(/\w+/),d=o[4].match(/[a-z\-]*/),l&&d)switch(d[0]){case"farthest-corner":case"cover":case"":h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2)),u=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2)),f=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2)),p=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2)),n.rx=n.ry=Math.max(h,u,f,p);break;case"closest-corner":h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2)),u=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2)),f=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2)),p=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2)),n.rx=n.ry=Math.min(h,u,f,p);break;case"farthest-side":"circle"===l[0]?n.rx=n.ry=Math.max(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy):(n.type=l[0],n.rx=Math.max(n.cx,n.x1-n.cx),n.ry=Math.max(n.cy,n.y1-n.cy));break;case"closest-side":case"contain":"circle"===l[0]?n.rx=n.ry=Math.min(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy):(n.type=l[0],n.rx=Math.min(n.cx,n.x1-n.cx),n.ry=Math.min(n.cy,n.y1-n.cy))}if(l=o[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g))for(s=l.length,c=1/Math.max(s-1,1),r=0;s>r;r+=1)d=l[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),d[2]?(i=parseFloat(d[2]),i/="%"===d[3]?100:e.width):i=r*c,n.colorStops.push({color:d[1],stop:i})}return n},r.Gradient=function(n,r){if(0!==r.width&&0!==r.height){var a,o,i=e.createElement("canvas"),l=i.getContext("2d");if(i.width=r.width,i.height=r.height,a=d.Generate.parseGradient(n,r))switch(a.type){case"linear":o=l.createLinearGradient(a.x0,a.y0,a.x1,a.y1),a.colorStops.forEach(t(o)),l.fillStyle=o,l.fillRect(0,0,r.width,r.height);break;case"circle":o=l.createRadialGradient(a.cx,a.cy,0,a.cx,a.cy,a.rx),a.colorStops.forEach(t(o)),l.fillStyle=o,l.fillRect(0,0,r.width,r.height);break;case"ellipse":var s=e.createElement("canvas"),c=s.getContext("2d"),h=Math.max(a.rx,a.ry),u=2*h;s.width=s.height=u,o=c.createRadialGradient(a.rx,a.ry,0,a.rx,a.ry,h),a.colorStops.forEach(t(o)),c.fillStyle=o,c.fillRect(0,0,u,u),l.fillStyle=a.colorStops[a.colorStops.length-1].color,l.fillRect(0,0,i.width,i.height),l.drawImage(s,a.cx-a.rx,a.cy-a.ry,2*a.rx,2*a.ry)}return i}},r.ListAlpha=function(t){var e,n="";do e=t%26,n=String.fromCharCode(e+64)+n,t/=26;while(26*t>26);return n},r.ListRoman=function(t){var e,n=["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"],r=[1e3,900,500,400,100,90,50,40,10,9,5,4,1],a="",o=n.length;if(0>=t||t>=4e3)return t;for(e=0;o>e;e+=1)for(;t>=r[e];)t-=r[e],a+=n[e];return a}}(),d.Parse=function(r,a,o){function i(){var t=be(e.documentElement,"backgroundColor"),n=me.isTransparent(t)&&fe===e.body,r=ce(fe,null,!1,n);s(fe),ue(fe,r,function(){n&&(t=r.backgroundColor),c(),me.log("Done parsing, moving to Render."),o({backgroundColor:t,stack:r})})}function s(t){function n(){for(var t=/:before|:after/,n=e.styleSheets,r=0,a=n.length;a>r;r++)try{for(var o=n[r].cssRules,i=0,s=o.length;s>i;i++)t.test(o[i].selectorText)&&l.push(o[i].selectorText)}catch(c){}for(r=0,a=l.length;a>r;r++)l[r]=l[r].match(/(^[^:]*)/)[1]}function r(){for(var t=e.querySelectorAll(l.join(",")),n=0,r=t.length;r>n;n++)a(t[n])}function a(t){var e=Y(t,":before"),n=Y(t,":after");e&&i.push({type:"before",pseudo:e,el:t}),n&&i.push({type:"after",pseudo:n,el:t})}function o(){i.forEach(function(t){h(t.el,ve+"-parent")}),i.forEach(function(t){"before"===t.type?t.el.insertBefore(t.pseudo,t.el.firstChild):t.el.appendChild(t.pseudo)})}var i=[],l=[];n(),r(t),o()}function c(){xe.removeChild(Ce);for(var t=e.getElementsByClassName(ve+"-element");t.length;)t[0].parentNode.removeChild(t[0]);for(var n=e.getElementsByClassName(ve+"-parent");n.length;)u(n[0],ve+"-parent")}function h(t,e){t.classList?t.classList.add(e):t.className=t.className+" "+e}function u(t,e){t.classList?t.classList.remove(e):t.className=t.className.replace(e,"").trim()}function f(){return Math.max(Math.max(ge.body.scrollWidth,ge.documentElement.scrollWidth),Math.max(ge.body.offsetWidth,ge.documentElement.offsetWidth),Math.max(ge.body.clientWidth,ge.documentElement.clientWidth))}function p(){return 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t.setVariable("fillStyle",a),t.setVariable("font",[be(e,"fontStyle"),be(e,"fontVariant"),i,s,l].join(" ")),t.setVariable("textAlign",o?"right":"left"),c.length&&(t.setVariable("shadowColor",c[0].color),t.setVariable("shadowOffsetX",c[0].offsetX),t.setVariable("shadowOffsetY",c[0].offsetY),t.setVariable("shadowBlur",c[0].blur)),"none"!==r?me.Font(l,s,ge):n}function C(t,e,n,r,a){switch(e){case"underline":m(t,n.left,Math.round(n.top+r.baseline+r.lineWidth),n.width,1,a);break;case"overline":m(t,n.left,Math.round(n.top),n.width,1,a);break;case"line-through":m(t,n.left,Math.ceil(n.top+r.middle+r.lineWidth),n.width,1,a)}}function k(t,e,n,r,a){var o;if(ye.rangeBounds&&!a)("none"!==n||0!==me.trimText(e).length)&&(o=T(e,t.node,t.textOffset)),t.textOffset+=e.length;else if(t.node&&"string"==typeof t.node.nodeValue){var i=r?t.node.splitText(e.length):null;o=S(t.node,a),t.node=i}return o}function T(t,e,n){var r=ge.createRange();return 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if(!x.cleanupDone){a&&"string"==typeof a?b.log("html2canvas: Cleanup because: "+a):b.log("html2canvas: Cleanup after timeout: "+r.timeout+" ms.");for(l in x)if(x.hasOwnProperty(l)&&(i=x[l],"object"==typeof i&&i.callbackname&&i.succeeded===n)){t[i.callbackname]=n;try{delete t[i.callbackname]}catch(s){}i.script&&i.script.parentNode&&(i.script.setAttribute("src","about:blank"),i.script.parentNode.removeChild(i.script)),x.numLoaded++,x.numFailed++,b.log("html2canvas: Cleaned up failed img: '"+l+"' Steps: "+x.numLoaded+" / "+x.numTotal)}t.stop!==n?t.stop():e.execCommand!==n&&e.execCommand("Stop",!1),e.close!==n&&e.close(),x.cleanupDone=!0,a&&"string"==typeof a||o()}},renderingDone:function(){w&&t.clearTimeout(w)}},r.timeout>0&&(w=t.setTimeout(m.cleanupDOM,r.timeout)),b.log("html2canvas: Preload starts: finding background-images"),x.firstRun=!0,f(C),b.log("html2canvas: Preload: Finding images"),y=0;S>y;y+=1)m.loadImage(T[y].getAttribute("src"));return x.firstRun=!1,b.log("html2canvas: 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e.createRange&&(t=e.createRange(),t.getBoundingClientRect&&(n=e.createElement("boundtest"),n.style.height="123px",n.style.display="block",e.body.appendChild(n),t.selectNode(n),r=t.getBoundingClientRect(),a=r.height,123===a&&(o=!0),e.body.removeChild(n))),o}return{rangeBounds:a(),svgRendering:t.svgRendering&&r()}},t.html2canvas=function(e,n){e=e.length?e:[e];var r,a={logging:!1,elements:e,background:"#fff",proxy:null,timeout:0,useCORS:!1,allowTaint:!1,svgRendering:!1,ignoreElements:"IFRAME|OBJECT|PARAM",useOverflow:!0,letterRendering:!1,chinese:!1,async:!1,width:null,height:null,taintTest:!0,renderer:"Canvas"};return a=d.Util.Extend(n,a),d.logging=a.logging,a.complete=function(t){("function"!=typeof a.onpreloaded||a.onpreloaded(t)!==!1)&&d.Parse(t,a,function(t){("function"!=typeof a.onparsed||a.onparsed(t)!==!1)&&(r=d.Renderer(t,a),"function"==typeof a.onrendered&&a.onrendered(r))})},t.setTimeout(function(){d.Preload(a)},0),{render:function(t,e){return d.Renderer(t,d.Util.Extend(e,a))},parse:function(t,e){return d.Parse(t,d.Util.Extend(e,a))},preload:function(t){return d.Preload(d.Util.Extend(t,a))},log:d.Util.log}},t.html2canvas.log=d.Util.log,t.html2canvas.Renderer={Canvas:n},d.Renderer.Canvas=function(t){function r(t,e){t.beginPath(),e.forEach(function(e){t[e.name].apply(t,e.arguments)}),t.closePath()}function a(t){if(-1===l.indexOf(t.arguments[0].src)){c.drawImage(t.arguments[0],0,0);try{c.getImageData(0,0,1,1)}catch(e){return s=i.createElement("canvas"),c=s.getContext("2d"),!1}l.push(t.arguments[0].src)}return!0}function o(e,n){switch(n.type){case"variable":e[n.name]=n.arguments;break;case"function":switch(n.name){case"createPattern":if(n.arguments[0].width>0&&n.arguments[0].height>0)try{e.fillStyle=e.createPattern(n.arguments[0],"repeat")}catch(o){h.log("html2canvas: Renderer: Error creating pattern",o.message)}break;case"drawShape":r(e,n.arguments);break;case"drawImage":n.arguments[8]>0&&n.arguments[7]>0&&(!t.taintTest||t.taintTest&&a(n))&&e.drawImage.apply(e,n.arguments);break;default:e[n.name].apply(e,n.arguments)}}}t=t||{};var i=e,l=[],s=e.createElement("canvas"),c=s.getContext("2d"),h=d.Util,u=t.canvas||i.createElement("canvas");return function(t,e,r,a,i){var l,s,c,d=u.getContext("2d"),f=t.stack;return u.width=u.style.width=e.width||f.ctx.width,u.height=u.style.height=e.height||f.ctx.height,c=d.fillStyle,d.fillStyle=h.isTransparent(t.backgroundColor)&&e.background!==n?e.background:t.backgroundColor,d.fillRect(0,0,u.width,u.height),d.fillStyle=c,a.forEach(function(t){d.textBaseline="bottom",d.save(),t.transform.matrix&&(d.translate(t.transform.origin[0],t.transform.origin[1]),d.transform.apply(d,t.transform.matrix),d.translate(-t.transform.origin[0],-t.transform.origin[1])),t.clip&&(d.beginPath(),d.rect(t.clip.left,t.clip.top,t.clip.width,t.clip.height),d.clip()),t.ctx.storage&&t.ctx.storage.forEach(function(t){o(d,t)}),d.restore()}),h.log("html2canvas: Renderer: Canvas renderer done - returning canvas obj"),1===e.elements.length&&"object"==typeof e.elements[0]&&"BODY"!==e.elements[0].nodeName?(s=i.Util.Bounds(e.elements[0]),l=r.createElement("canvas"),l.width=Math.ceil(s.width),l.height=Math.ceil(s.height),d=l.getContext("2d"),d.drawImage(u,s.left,s.top,s.width,s.height,0,0,s.width,s.height),u=null,l):u}}})(window,document); |