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html2canvas.min.js

html2canvas.min.js 39 KB
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  1. (function(j,l,e){var k={},h,c,i;k.Util={};k.Util.log=function(n){if(k.logging&&j.console&&j.console.log){j.console.log(n)}};k.Util.trimText=(function(n){return function(o){return n?n.apply(o):((o||"")+"").replace(/^\s+|\s+$/g,"")}})(String.prototype.trim);k.Util.asFloat=function(n){return parseFloat(n)};(function(){var o=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;var n=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;k.Util.parseTextShadows=function(u){if(!u||u==="none"){return[]}var t=u.match(o),q=[];for(var p=0;t&&(p<t.length);p++){var r=t[p].match(n);q.push({color:r[0],offsetX:r[1]?r[1].replace("px",""):0,offsetY:r[2]?r[2].replace("px",""):0,blur:r[3]?r[3].replace("px",""):0})}return q}})();k.Util.parseBackgroundImage=function(y){var p=" \r\n\t",o,q,v,C,r,t=[],x,u=0,z=0,n,w;var B=function(){if(o){if(q.substr(0,1)==='"'){q=q.substr(1,q.length-2)}if(q){w.push(q)}if(o.substr(0,1)==="-"&&(C=o.indexOf("-",1)+1)>0){v=o.substr(0,C);o=o.substr(C)}t.push({prefix:v,method:o.toLowerCase(),value:r,args:w})}w=[];o=v=q=r=""};B();for(var s=0,A=y.length;s<A;s++){x=y[s];if(u===0&&p.indexOf(x)>-1){continue}switch(x){case'"':if(!n){n=x}else{if(n===x){n=null}}break;case"(":if(n){break}else{if(u===0){u=1;r+=x;continue}else{z++}}break;case")":if(n){break}else{if(u===1){if(z===0){u=0;r+=x;B();continue}else{z--}}}break;case",":if(n){break}else{if(u===0){B();continue}else{if(u===1){if(z===0&&!o.match(/^url$/i)){w.push(q);q="";r+=x;continue}}}}break}r+=x;if(u===0){o+=x}else{q+=x}}B();return t};k.Util.Bounds=function(n){var p,o={};if(n.getBoundingClientRect){p=n.getBoundingClientRect();o.top=p.top;o.bottom=p.bottom||(p.top+p.height);o.left=p.left;o.width=n.offsetWidth;o.height=n.offsetHeight}return o};k.Util.OffsetBounds=function(n){var o=n.offsetParent?k.Util.OffsetBounds(n.offsetParent):{top:0,left:0};return{top:n.offsetTop+o.top,bottom:n.offsetTop+n.offsetHeight+o.top,left:n.offsetLeft+o.left,width:n.offsetWidth,height:n.offsetHeight}};function d(o,q,r){var n=o.runtimeStyle&&o.runtimeStyle[q],s,p=o.style;if(!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(r)&&/^-?\d/.test(r)){s=p.left;if(n){o.runtimeStyle.left=o.currentStyle.left}p.left=q==="fontSize"?"1em":(r||0);r=p.pixelLeft+"px";p.left=s;if(n){o.runtimeStyle.left=n}}if(!/^(thin|medium|thick)$/i.test(r)){return Math.round(parseFloat(r))+"px"}return r}function b(n){return parseInt(n,10)}function m(q,o,p,n){q=(q||"").split(",");q=q[n||0]||q[0]||"auto";q=k.Util.trimText(q).split(" ");if(p==="backgroundSize"&&(!q[0]||q[0].match(/cover|contain|auto/))){}else{q[0]=(q[0].indexOf("%")===-1)?d(o,p+"X",q[0]):q[0];if(q[1]===e){if(p==="backgroundSize"){q[1]="auto";return q}else{q[1]=q[0]}}q[1]=(q[1].indexOf("%")===-1)?d(o,p+"Y",q[1]):q[1]}return q}k.Util.getCSS=function(p,q,o){if(h!==p){c=l.defaultView.getComputedStyle(p,null)}var r=c[q];if(/^background(Size|Position)$/.test(q)){return m(r,p,q,o)}else{if(/border(Top|Bottom)(Left|Right)Radius/.test(q)){var n=r.split(" ");if(n.length<=1){n[1]=n[0]}return n.map(b)}}return r};k.Util.resizeBounds=function(s,n,t,u,v){var q=t/u,p=s/n,o,r;if(!v||v==="auto"){o=t;r=u}else{if(q<p^v==="contain"){r=u;o=u*p}else{o=t;r=t/p}}return{width:o,height:r}};function g(o,q,n,u,p,x){var s=k.Util.getCSS(q,o,p),w,t,y,r;if(s.length===1){r=s[0];s=[];s[0]=r;s[1]=r}if(s[0].toString().indexOf("%")!==-1){y=(parseFloat(s[0])/100);t=n.width*y;if(o!=="backgroundSize"){t-=(x||u).width*y}}else{if(o==="backgroundSize"){if(s[0]==="auto"){t=u.width}else{if(/contain|cover/.test(s[0])){var v=k.Util.resizeBounds(u.width,u.height,n.width,n.height,s[0]);t=v.width;w=v.height}else{t=parseInt(s[0],10)}}}else{t=parseInt(s[0],10)}}if(s[1]==="auto"){w=t/u.width*u.height}else{if(s[1].toString().indexOf("%")!==-1){y=(parseFloat(s[1])/100);w=n.height*y;if(o!=="backgroundSize"){w-=(x||u).height*y}}else{w=parseInt(s[1],10)}}return[t,w]}k.Util.BackgroundPosition=function(q,r,s,o,p){var n=g("backgroundPosition",q,r,s,o,p);return{left:n[0],top:n[1]}};k.Util.BackgroundSize=function(p,q,r,o){var n=g("backgroundSize",p,q,r,o);return{width:n[0],height:n[1]}};k.Util.Extend=function(n,p){for(var o in n){if(n.hasOwnProperty(o)){p[o]=n[o]}}return p};k.Util.Children=function(p){var o;try{o=(p.nodeName&&p.nodeName.toUpperCase()==="IFRAME")?p.contentDocument||p.contentWindow.document:(function(r){var q=[];if(r!==null){(function(w,u){var v=w.length,t=0;if(typeof u.length==="number"){for(var s=u.length;t<s;t++){w[v++]=u[t]}}else{while(u[t]!==e){w[v++]=u[t++]}}w.length=v;return w})(q,r)}return q})(p.childNodes)}catch(n){k.Util.log("html2canvas.Util.Children failed with exception: "+n.message);o=[]}return o};k.Util.isTransparent=function(n){return(n==="transparent"||n==="rgba(0, 0, 0, 0)")};k.Util.Font=(function(){var n={};return function(q,x,u){if(n[q+"-"+x]!==e){return n[q+"-"+x]}var o=u.createElement("div"),r=u.createElement("img"),v=u.createElement("span"),p="Hidden Text",t,w,s;o.style.visibility="hidden";o.style.fontFamily=q;o.style.fontSize=x;o.style.margin=0;o.style.padding=0;u.body.appendChild(o);r.src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=";r.width=1;r.height=1;r.style.margin=0;r.style.padding=0;r.style.verticalAlign="baseline";v.style.fontFamily=q;v.style.fontSize=x;v.style.margin=0;v.style.padding=0;v.appendChild(u.createTextNode(p));o.appendChild(v);o.appendChild(r);t=(r.offsetTop-v.offsetTop)+1;o.removeChild(v);o.appendChild(u.createTextNode(p));o.style.lineHeight="normal";r.style.verticalAlign="super";w=(r.offsetTop-o.offsetTop)+1;s={baseline:t,lineWidth:1,middle:w};n[q+"-"+x]=s;u.body.removeChild(o);return s}})();(function(){var p=k.Util,n={};k.Generate=n;var q=[/^(-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,%\(\)]+)\)$/];n.parseGradient=function(w,r){var A,v,x=q.length,F,z,C,s,u,B,E,y,D,t;for(v=0;v<x;v+=1){F=w.match(q[v]);if(F){break}}if(F){switch(F[1]){case"-webkit-linear-gradient":case"-o-linear-gradient":A={type:"linear",x0:null,y0:null,x1:null,y1:null,colorStops:[]};C=F[2].match(/\w+/g);if(C){s=C.length;for(v=0;v<s;v+=1){switch(C[v]){case"top":A.y0=0;A.y1=r.height;break;case"right":A.x0=r.width;A.x1=0;break;case"bottom":A.y0=r.height;A.y1=0;break;case"left":A.x0=0;A.x1=r.width;break}}}if(A.x0===null&&A.x1===null){A.x0=A.x1=r.width/2}if(A.y0===null&&A.y1===null){A.y0=A.y1=r.height/2}C=F[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);if(C){s=C.length;u=1/Math.max(s-1,1);for(v=0;v<s;v+=1){B=C[v].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if(B[2]){z=parseFloat(B[2]);if(B[3]==="%"){z/=100}else{z/=r.width}}else{z=v*u}A.colorStops.push({color:B[1],stop:z})}}break;case"-webkit-gradient":A={type:F[2]==="radial"?"circle":F[2],x0:0,y0:0,x1:0,y1:0,colorStops:[]};C=F[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/);if(C){A.x0=(C[1]*r.width)/100;A.y0=(C[2]*r.height)/100;A.x1=(C[3]*r.width)/100;A.y1=(C[4]*r.height)/100}C=F[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);if(C){s=C.length;for(v=0;v<s;v+=1){B=C[v].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/);z=parseFloat(B[2]);if(B[1]==="from"){z=0}if(B[1]==="to"){z=1}A.colorStops.push({color:B[3],stop:z})}}break;case"-moz-linear-gradient":A={type:"linear",x0:0,y0:0,x1:0,y1:0,colorStops:[]};C=F[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);if(C){A.x0=(C[1]*r.width)/100;A.y0=(C[2]*r.height)/100;A.x1=r.width-A.x0;A.y1=r.height-A.y0}C=F[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g);if(C){s=C.length;u=1/Math.max(s-1,1);for(v=0;v<s;v+=1){B=C[v].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/);if(B[2]){z=parseFloat(B[2]);if(B[3]){z/=100}}else{z=v*u}A.colorStops.push({color:B[1],stop:z})}}break;case"-webkit-radial-gradient":case"-moz-radial-gradient":case"-o-radial-gradient":A={type:"circle",x0:0,y0:0,x1:r.width,y1:r.height,cx:0,cy:0,rx:0,ry:0,colorStops:[]};C=F[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);if(C){A.cx=(C[1]*r.width)/100;A.cy=(C[2]*r.height)/100}C=F[3].match(/\w+/);B=F[4].match(/[a-z\-]*/);if(C&&B){switch(B[0]){case"farthest-corner":case"cover":case"":E=Math.sqrt(Math.pow(A.cx,2)+Math.pow(A.cy,2));y=Math.sqrt(Math.pow(A.cx,2)+Math.pow(A.y1-A.cy,2));D=Math.sqrt(Math.pow(A.x1-A.cx,2)+Math.pow(A.y1-A.cy,2));t=Math.sqrt(Math.pow(A.x1-A.cx,2)+Math.pow(A.cy,2));A.rx=A.ry=Math.max(E,y,D,t);break;case"closest-corner":E=Math.sqrt(Math.pow(A.cx,2)+Math.pow(A.cy,2));y=Math.sqrt(Math.pow(A.cx,2)+Math.pow(A.y1-A.cy,2));D=Math.sqrt(Math.pow(A.x1-A.cx,2)+Math.pow(A.y1-A.cy,2));t=Math.sqrt(Math.pow(A.x1-A.cx,2)+Math.pow(A.cy,2));A.rx=A.ry=Math.min(E,y,D,t);break;case"farthest-side":if(C[0]==="circle"){A.rx=A.ry=Math.max(A.cx,A.cy,A.x1-A.cx,A.y1-A.cy)}else{A.type=C[0];A.rx=Math.max(A.cx,A.x1-A.cx);A.ry=Math.max(A.cy,A.y1-A.cy)}break;case"closest-side":case"contain":if(C[0]==="circle"){A.rx=A.ry=Math.min(A.cx,A.cy,A.x1-A.cx,A.y1-A.cy)}else{A.type=C[0];A.rx=Math.min(A.cx,A.x1-A.cx);A.ry=Math.min(A.cy,A.y1-A.cy)}break}}C=F[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);if(C){s=C.length;u=1/Math.max(s-1,1);for(v=0;v<s;v+=1){B=C[v].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if(B[2]){z=parseFloat(B[2]);if(B[3]==="%"){z/=100}else{z/=r.width}}else{z=v*u}A.colorStops.push({color:B[1],stop:z})}}break}}return A};function o(r){return function(s){try{r.addColorStop(s.stop,s.color)}catch(t){p.log(["failed to add color stop: ",t,"; tried to add: ",s])}}}n.Gradient=function(r,s){if(s.width===0||s.height===0){return}var u=l.createElement("canvas"),A=u.getContext("2d"),y,z;u.width=s.width;u.height=s.height;y=k.Generate.parseGradient(r,s);if(y){switch(y.type){case"linear":z=A.createLinearGradient(y.x0,y.y0,y.x1,y.y1);y.colorStops.forEach(o(z));A.fillStyle=z;A.fillRect(0,0,s.width,s.height);break;case"circle":z=A.createRadialGradient(y.cx,y.cy,0,y.cx,y.cy,y.rx);y.colorStops.forEach(o(z));A.fillStyle=z;A.fillRect(0,0,s.width,s.height);break;case"ellipse":var v=l.createElement("canvas"),t=v.getContext("2d"),x=Math.max(y.rx,y.ry),w=x*2;v.width=v.height=w;z=t.createRadialGradient(y.rx,y.ry,0,y.rx,y.ry,x);y.colorStops.forEach(o(z));t.fillStyle=z;t.fillRect(0,0,w,w);A.fillStyle=y.colorStops[y.colorStops.length-1].color;A.fillRect(0,0,u.width,u.height);A.drawImage(v,y.cx-y.rx,y.cy-y.ry,2*y.rx,2*y.ry);break}}return u};n.ListAlpha=function(t){var s="",r;do{r=t%26;s=String.fromCharCode((r)+64)+s;t=t/26}while((t*26)>26);return s};n.ListRoman=function(w){var u=["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"],s=[1000,900,500,400,100,90,50,40,10,9,5,4,1],x="",t,r=u.length;if(w<=0||w>=4000){return w}for(t=0;t<r;t+=1){while(w>=s[t]){w-=s[t];x+=u[t]}}return x}})();function f(o,n){var p=[];return{storage:p,width:o,height:n,clip:function(){p.push({type:"function",name:"clip","arguments":arguments})},translate:function(){p.push({type:"function",name:"translate","arguments":arguments})},fill:function(){p.push({type:"function",name:"fill","arguments":arguments})},save:function(){p.push({type:"function",name:"save","arguments":arguments})},restore:function(){p.push({type:"function",name:"restore","arguments":arguments})},fillRect:function(){p.push({type:"function",name:"fillRect","arguments":arguments})},createPattern:function(){p.push({type:"function",name:"createPattern","arguments":arguments})},drawShape:function(){var q=[];p.push({type:"function",name:"drawShape","arguments":q});return{moveTo:function(){q.push({name:"moveTo","arguments":arguments})},lineTo:function(){q.push({name:"lineTo","arguments":arguments})},arcTo:function(){q.push({name:"arcTo","arguments":arguments})},bezierCurveTo:function(){q.push({name:"bezierCurveTo","arguments":arguments})},quadraticCurveTo:function(){q.push({name:"quadraticCurveTo","arguments":arguments})}}},drawImage:function(){p.push({type:"function",name:"drawImage","arguments":arguments})},fillText:function(){p.push({type:"function",name:"fillText","arguments":arguments})},setVariable:function(q,r){p.push({type:"variable",name:q,"arguments":r});return r}}}k.Parse=function(v,ac){j.scroll(0,0);var M=((ac.elements===e)?l.body:ac.elements[0]),w=0,z=M.ownerDocument,r=k.Util,aq=r.Support(ac,z),am=new RegExp("("+ac.ignoreElements+")"),Z=z.body,X=r.getCSS,Q="___html2canvas___pseudoelement",P=z.createElement("style");P.innerHTML="."+Q+'-before:before { content: "" !important; display: none !important; }.'+Q+'-after:after { content: "" !important; display: none !important; }';Z.appendChild(P);v=v||{};function ao(){return Math.max(Math.max(z.body.scrollWidth,z.documentElement.scrollWidth),Math.max(z.body.offsetWidth,z.documentElement.offsetWidth),Math.max(z.body.clientWidth,z.documentElement.clientWidth))}function K(){return Math.max(Math.max(z.body.scrollHeight,z.documentElement.scrollHeight),Math.max(z.body.offsetHeight,z.documentElement.offsetHeight),Math.max(z.body.clientHeight,z.documentElement.clientHeight))}function Y(aE,aF){var aG=parseInt(X(aE,aF),10);return(isNaN(aG))?0:aG}function aA(aH,aE,aJ,aG,aI,aF){if(aF!=="transparent"){aH.setVariable("fillStyle",aF);aH.fillRect(aE,aJ,aG,aI);w+=1}}function ae(aE,aG,aF){if(aE.length>0){return aG+aF.toUpperCase()}}function y(aF,aE){switch(aE){case"lowercase":return aF.toLowerCase();case"capitalize":return aF.replace(/(^|\s|:|-|\(|\))([a-z])/g,ae);case"uppercase":return aF.toUpperCase();default:return 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