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html2canvas.min.js
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html2canvas.min.js
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/*
html2canvas v0.34 <http://html2canvas.hertzen.com>
Copyright (c) 2011 Niklas von Hertzen. All rights reserved.
http://www.twitter.com/niklasvh
Released under MIT License
*/
(function(t,u,l){function E(c){i.logging&&t.console&&t.console.log&&t.console.log(c)}function U(c,g){var e=[];return{storage:e,width:c,height:g,fillRect:function(){e.push({type:"function",name:"fillRect",arguments:arguments})},drawImage:function(){e.push({type:"function",name:"drawImage",arguments:arguments})},fillText:function(){e.push({type:"function",name:"fillText",arguments:arguments})},setVariable:function(a,d){e.push({type:"variable",name:a,arguments:d})}}}var i={},T,L;i.Util={};i.Util.backgroundImage=
function(c){if(/data:image\/.*;base64,/i.test(c)||/^(-webkit|-moz|linear-gradient|-o-)/.test(c))return c;c.toLowerCase().substr(0,5)==='url("'?(c=c.substr(5),c=c.substr(0,c.length-2)):(c=c.substr(4),c=c.substr(0,c.length-1));return c};i.Util.Bounds=function(c){var g={};if(c.getBoundingClientRect)return c=c.getBoundingClientRect(),g.top=c.top,g.bottom=c.bottom||c.top+c.height,g.left=c.left,g.width=c.width||c.right-c.left,g.height=c.height||c.bottom-c.top,g};i.Util.getCSS=function(c,g){function e(a,
b){var g=c.runtimeStyle&&c.runtimeStyle[a],e,k=c.style;if(!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(b)&&/^-?\d/.test(b)){e=k.left;if(g)c.runtimeStyle.left=c.currentStyle.left;k.left=a==="fontSize"?"1em":b||0;b=k.pixelLeft+"px";k.left=e;if(g)c.runtimeStyle.left=g}return!/^(thin|medium|thick)$/i.test(b)?Math.round(parseFloat(b))+"px":b}var a;if(t.getComputedStyle)void 0!==c&&(T=u.defaultView.getComputedStyle(c,null)),a=T[g],g==="backgroundPosition"&&(a=(a.split(",")[0]||"0 0").split(" "),a[0]=a[0].indexOf("%")===
-1?e(g+"X",a[0]):a[0],a[1]=a[1]===l?a[0]:a[1],a[1]=a[1].indexOf("%")===-1?e(g+"Y",a[1]):a[1]);else if(c.currentStyle)if(g==="backgroundPosition")a=[e(g+"X",c.currentStyle[g+"X"]),e(g+"Y",c.currentStyle[g+"Y"])];else if(a=e(g,c.currentStyle[g]),/^(border)/i.test(g)&&/^(medium|thin|thick)$/i.test(a))switch(a){case "thin":a="1px";break;case "medium":a="0px";break;case "thick":a="5px"}return a};i.Util.BackgroundPosition=function(c,g,e){var c=i.Util.getCSS(c,"backgroundPosition"),a,d;c.length===1&&(a=
c,c=[],c[0]=a,c[1]=a);c[0].toString().indexOf("%")!==-1?(d=parseFloat(c[0])/100,a=g.width*d-e.width*d):a=parseInt(c[0],10);c[1].toString().indexOf("%")!==-1?(d=parseFloat(c[1])/100,g=g.height*d-e.height*d):g=parseInt(c[1],10);return{top:g,left:a}};i.Util.Extend=function(c,g){for(var e in c)c.hasOwnProperty(e)&&(g[e]=c[e]);return g};i.Util.Children=function(c){var g;try{g=c.nodeName&&c.nodeName.toUpperCase()==="IFRAME"?c.contentDocument||c.contentWindow.document:function(a){var d=[];a!==null&&function(a,
d){var c=a.length,g=0;if(typeof d.length==="number")for(var e=d.length;g<e;g++)a[c++]=d[g];else for(;d[g]!==l;)a[c++]=d[g++];a.length=c;return a}(d,a);return d}(c.childNodes)}catch(e){E("html2canvas.Util.Children failed with exception: "+e.message),g=[]}return g};(function(){i.Generate={};var c=[/^(-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,%\(\)]+)\)$/];i.Generate.parseGradient=function(g,e){var a,d,b=c.length,h,f,k,n;for(d=0;d<b;d+=1)if(h=g.match(c[d]))break;if(h)switch(h[1]){case "-webkit-linear-gradient":case "-o-linear-gradient":a=
{type:"linear",x0:null,y0:null,x1:null,y1:null,colorStops:[]};if(b=h[2].match(/\w+/g)){f=b.length;for(d=0;d<f;d+=1)switch(b[d]){case "top":a.y0=0;a.y1=e.height;break;case "right":a.x0=e.width;a.x1=0;break;case "bottom":a.y0=e.height;a.y1=0;break;case "left":a.x0=0,a.x1=e.width}}if(a.x0===null&&a.x1===null)a.x0=a.x1=e.width/2;if(a.y0===null&&a.y1===null)a.y0=a.y1=e.height/2;if(b=h[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g)){f=b.length;k=1/Math.max(f-
1,1);for(d=0;d<f;d+=1)n=b[d].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),n[2]?(h=parseFloat(n[2]),h/=n[3]==="%"?100:e.width):h=d*k,a.colorStops.push({color:n[1],stop:h})}break;case "-webkit-gradient":a={type:h[2]==="radial"?"circle":h[2],x0:0,y0:0,x1:0,y1:0,colorStops:[]};if(b=h[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/))a.x0=b[1]*e.width/100,a.y0=b[2]*e.height/100,a.x1=b[3]*e.width/100,a.y1=b[4]*e.height/100;if(b=h[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)){f=
b.length;for(d=0;d<f;d+=1)n=b[d].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/),h=parseFloat(n[2]),n[1]==="from"&&(h=0),n[1]==="to"&&(h=1),a.colorStops.push({color:n[3],stop:h})}break;case "-moz-linear-gradient":a={type:"linear",x0:0,y0:0,x1:0,y1:0,colorStops:[]};if(b=h[2].match(/(\d{1,3})%?\s(\d{1,3})%?/))a.x0=b[1]*e.width/100,a.y0=b[2]*e.height/100,a.x1=e.width-a.x0,a.y1=e.height-a.y0;if(b=h[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g)){f=
b.length;k=1/Math.max(f-1,1);for(d=0;d<f;d+=1)n=b[d].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/),n[2]?(h=parseFloat(n[2]),n[3]&&(h/=100)):h=d*k,a.colorStops.push({color:n[1],stop:h})}break;case "-webkit-radial-gradient":case "-moz-radial-gradient":case "-o-radial-gradient":a={type:"circle",x0:0,y0:0,x1:e.width,y1:e.height,cx:0,cy:0,rx:0,ry:0,colorStops:[]};if(b=h[2].match(/(\d{1,3})%?\s(\d{1,3})%?/))a.cx=b[1]*e.width/100,a.cy=b[2]*e.height/100;b=h[3].match(/\w+/);
n=h[4].match(/[a-z-]*/);if(b&&n)switch(n[0]){case "farthest-corner":case "cover":case "":d=Math.sqrt(Math.pow(a.cx,2)+Math.pow(a.cy,2));b=Math.sqrt(Math.pow(a.cx,2)+Math.pow(a.y1-a.cy,2));f=Math.sqrt(Math.pow(a.x1-a.cx,2)+Math.pow(a.y1-a.cy,2));n=Math.sqrt(Math.pow(a.x1-a.cx,2)+Math.pow(a.cy,2));a.rx=a.ry=Math.max(d,b,f,n);break;case "closest-corner":d=Math.sqrt(Math.pow(a.cx,2)+Math.pow(a.cy,2));b=Math.sqrt(Math.pow(a.cx,2)+Math.pow(a.y1-a.cy,2));f=Math.sqrt(Math.pow(a.x1-a.cx,2)+Math.pow(a.y1-a.cy,
2));n=Math.sqrt(Math.pow(a.x1-a.cx,2)+Math.pow(a.cy,2));a.rx=a.ry=Math.min(d,b,f,n);break;case "farthest-side":b[0]==="circle"?a.rx=a.ry=Math.max(a.cx,a.cy,a.x1-a.cx,a.y1-a.cy):(a.type=b[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":b[0]==="circle"?a.rx=a.ry=Math.min(a.cx,a.cy,a.x1-a.cx,a.y1-a.cy):(a.type=b[0],a.rx=Math.min(a.cx,a.x1-a.cx),a.ry=Math.min(a.cy,a.y1-a.cy))}if(b=h[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g)){f=
b.length;k=1/Math.max(f-1,1);for(d=0;d<f;d+=1)n=b[d].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/),n[2]?(h=parseFloat(n[2]),h/=n[3]==="%"?100:e.width):h=d*k,a.colorStops.push({color:n[1],stop:h})}}return a};i.Generate.Gradient=function(c,e){var a=u.createElement("canvas"),d=a.getContext("2d"),b,h,f,k,n;a.width=e.width;a.height=e.height;b=i.Generate.parseGradient(c,e);n=new Image;if(b)if(b.type==="linear"){h=d.createLinearGradient(b.x0,b.y0,b.x1,b.y1);f=
0;for(k=b.colorStops.length;f<k;f+=1)try{h.addColorStop(b.colorStops[f].stop,b.colorStops[f].color)}catch(t){E(["failed to add color stop: ",t,"; tried to add: ",b.colorStops[f],"; stop: ",f,"; in: ",c])}d.fillStyle=h;d.fillRect(0,0,e.width,e.height);n.src=a.toDataURL()}else if(b.type==="circle"){h=d.createRadialGradient(b.cx,b.cy,0,b.cx,b.cy,b.rx);f=0;for(k=b.colorStops.length;f<k;f+=1)try{h.addColorStop(b.colorStops[f].stop,b.colorStops[f].color)}catch(l){E(["failed to add color stop: ",l,"; tried to add: ",
b.colorStops[f],"; stop: ",f,"; in: ",c])}d.fillStyle=h;d.fillRect(0,0,e.width,e.height);n.src=a.toDataURL()}else if(b.type==="ellipse"){var v=u.createElement("canvas"),x=v.getContext("2d");h=Math.max(b.rx,b.ry);var K=h*2,G;v.width=v.height=K;h=x.createRadialGradient(b.rx,b.ry,0,b.rx,b.ry,h);f=0;for(k=b.colorStops.length;f<k;f+=1)try{h.addColorStop(b.colorStops[f].stop,b.colorStops[f].color)}catch(B){E(["failed to add color stop: ",B,"; tried to add: ",b.colorStops[f],"; stop: ",f,"; in: ",c])}x.fillStyle=
h;x.fillRect(0,0,K,K);d.fillStyle=b.colorStops[f-1].color;d.fillRect(0,0,a.width,a.height);G=new Image;G.onload=function(){d.drawImage(G,b.cx-b.rx,b.cy-b.ry,2*b.rx,2*b.ry);n.src=a.toDataURL()};G.src=v.toDataURL()}return n};i.Generate.ListAlpha=function(c){var e="",a;do a=c%26,e=String.fromCharCode(a+64)+e,c/=26;while(c*26>26);return e};i.Generate.ListRoman=function(c){var e=["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"],a=[1E3,900,500,400,100,90,50,40,10,9,5,4,1],d="",b,h=e.length;if(c<=
0||c>=4E3)return c;for(b=0;b<h;b+=1)for(;c>=a[b];)c-=a[b],d+=e[b];return d}})();i.Parse=function(c,g){function e(){return{width: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)),height: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 a(a,b){var c=parseInt(y(a,b),10);return isNaN(c)?0:c}function d(a,b,c,d,g,e){e!=="transparent"&&(a.setVariable("fillStyle",e),a.fillRect(b,c,d,g),H+=1)}function b(a,b){switch(b){case "lowercase":return a.toLowerCase();case "capitalize":return a.replace(/(^|\s|:|-|\(|\))([a-z])/g,function(a,b,V){if(a.length>0)return b+V.toUpperCase()});case "uppercase":return a.toUpperCase();default:return a}}function h(a){return a.replace(/^\s*/g,"").replace(/\s*$/g,"")}function f(a,c,e){var e=e.ctx,f=y(a,
"fontFamily"),j=y(a,"fontSize"),k=y(a,"color"),n=y(a,"textDecoration"),F=y(a,"textAlign"),p=y(a,"letterSpacing"),I,q,m=y(a,"fontWeight"),r=y(a,"fontStyle"),s=y(a,"fontVariant"),A=0,o;c.nodeValue=b(c.nodeValue,y(a,"textTransform"));if(h(c.nodeValue).length>0){if(n!=="none")if(w[f+"-"+j]!==l)q=w[f+"-"+j];else{q=z.createElement("div");a=z.createElement("img");o=z.createElement("span");var v;q.style.visibility="hidden";q.style.fontFamily=f;q.style.fontSize=j;q.style.margin=0;q.style.padding=0;O.appendChild(q);
a.src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=";a.width=1;a.height=1;a.style.margin=0;a.style.padding=0;a.style.verticalAlign="baseline";o.style.fontFamily=f;o.style.fontSize=j;o.style.margin=0;o.style.padding=0;o.appendChild(z.createTextNode("Hidden Text"));q.appendChild(o);q.appendChild(a);v=a.offsetTop-o.offsetTop+1;q.removeChild(o);q.appendChild(z.createTextNode("Hidden Text"));q.style.lineHeight="normal";a.style.verticalAlign="super";a={baseline:v,lineWidth:1,middle:a.offsetTop-
q.offsetTop+1};w[f+"-"+j]=a;O.removeChild(q);q=a}F=F.replace(["-webkit-auto"],["auto"]);F=g.letterRendering===!1&&/^(left|right|justify|auto)$/.test(F)&&/^(normal|none)$/.test(p)?c.nodeValue.split(/(\b| )/):c.nodeValue.split("");switch(parseInt(m,10)){case 401:m="bold";break;case 400:m="normal"}e.setVariable("fillStyle",k);e.setVariable("font",r+" "+s+" "+m+" "+j+" "+f);e.setVariable("textAlign","left");j=c;m=0;for(f=F.length;m<f;m+=1){r=null;if(B.rangeBounds){if(n!=="none"||h(F[m]).length!==0)r=
F[m],z.createRange?(I=z.createRange(),I.setStart(c,A),I.setEnd(c,A+r.length)):I=O.createTextRange(),I=I.getBoundingClientRect()?I.getBoundingClientRect():{}}else{if(typeof j.nodeValue!=="string")continue;s=j.splitText(F[m].length);p=j.parentNode;a=z.createElement("wrapper");o=j.cloneNode(!0);a.appendChild(j.cloneNode(!0));p.replaceChild(a,j);I=i.Util.Bounds(a);r=j.nodeValue;j=s;p.replaceChild(o,a)}if(r!==null)s=I.left,p=I.bottom,a=e,h(r).length>0&&(a.fillText(r,s,p),H+=1);switch(n){case "underline":d(e,
I.left,Math.round(I.top+q.baseline+q.lineWidth),I.width,1,k);break;case "overline":d(e,I.left,I.top,I.width,1,k);break;case "line-through":d(e,I.left,Math.ceil(I.top+q.middle+q.lineWidth),I.width,1,k)}A+=F[m].length}}}function k(a){return(a=c[a])&&a.succeeded===!0?a.img:!1}function n(a,b){var c=Math.max(a.left,b.left),d=Math.max(a.top,b.top);return{left:c,top:d,width:Math.min(a.left+a.width,b.left+b.width)-c,height:Math.min(a.top+a.height,b.top+b.height)-d}}function Q(b,c,e,g){for(var f=e.left,j=
e.top,h=e.width,e=e.height,k,p,B,q,m,i=function(b){var c=[],d=["Top","Right","Bottom","Left"],e;for(e=0;e<4;e+=1)c.push({width:a(b,"border"+d[e]+"Width"),color:y(b,"border"+d[e]+"Color")});return c}(b),b=0;b<4;b+=1)if(k=i[b],k.width>0){p=f;B=j;q=h;m=e-i[2].width;switch(b){case 0:m=i[0].width;break;case 1:p=f+h-i[1].width;q=i[1].width;break;case 2:B=B+e-i[2].width;m=i[2].width;break;case 3:q=i[3].width}q={left:p,top:B,width:q,height:m};g&&(q=n(q,g));q.width>0&&q.height>0&&d(c,p,B,q.width,q.height,
k.color)}return i}function P(a,b,c){var d=z.createElement("valuewrap"),e=["lineHeight","textAlign","fontFamily","color","fontSize","paddingLeft","paddingTop","width","height","border","borderLeftWidth","borderTopWidth"],g,j,h;g=0;for(j=e.length;g<j;g+=1){h=e[g];try{d.style[h]=y(a,h)}catch(k){E("html2canvas: Parse: Exception caught in renderFormValue: "+k.message)}}d.style.borderColor="black";d.style.borderStyle="solid";d.style.display="block";d.style.position="absolute";if(/^(submit|reset|button|text|password)$/.test(a.type)||
a.nodeName==="SELECT")d.style.lineHeight=y(a,"height");d.style.top=b.top+"px";d.style.left=b.left+"px";b=z.createTextNode(a.nodeName==="SELECT"?a.options[a.selectedIndex].text:a.value);d.appendChild(b);O.appendChild(d);f(a,b,c);O.removeChild(d)}function v(a,b,c,d,e,g,f,j){var h=0,k=0;f-c>0&&(h=f-c);j-d>0&&(k=j-d);a.drawImage(b,h,k,e-h,g-k,c+h,d+k,e-h,g-k);H+=1}function x(a,b,c,d,e,g,f){var f=Math.min(b.height,f),h,j;c.left-=Math.ceil(c.left/b.width)*b.width;for(j=d+c.left;j<g+d;)h=Math.floor(j+b.width)>
g+d?g+d-j:b.width,v(a,b,j,e+c.top,h,f,d,e),j=Math.floor(j+b.width)}function K(b,c){var j=i.Util.Bounds(b),f=j.left,B=j.top,w=j.width,D=j.height,F,p=y(b,"backgroundColor"),t=y(b,"position"),q,m=y(b,"opacity"),r,s;c?L={}:(L=e(),c={opacity:1});s=y(b,"zIndex");(q=c.zIndex)?s!=="auto"&&(s={zindex:s,children:[]},q.children.push(s),q=s):q=s={zindex:0,children:[]};r={ctx:U(L.width||w,L.height||D),zIndex:q,opacity:m*c.opacity,cssPosition:t};if(c.clip)r.clip=i.Util.Extend({},c.clip);if(g.useOverflow===!0&&
/(hidden|scroll|auto)/.test(y(b,"overflow"))===!0&&/(BODY)/i.test(b.nodeName)===!1)r.clip=r.clip?n(r.clip,j):j;t=q.children.push(r);s=q.children[t-1].ctx;s.setVariable("globalAlpha",r.opacity);m=Q(b,s,j,!1);r.borders=m;A.test(b.nodeName)&&g.iframeDefault!=="transparent"&&(p=g.iframeDefault==="default"?"#efefef":g.iframeDefault);w={left:f+m[3].width,top:B+m[0].width,width:w-(m[1].width+m[3].width),height:D-(m[0].width+m[2].width)};r.clip&&(w=n(w,r.clip));if(w.height>0&&w.width>0){d(s,w.left,w.top,
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