js html等比例放大后生成图片 html2canvas

原html：

注：图片带有html://的域名地址不兼容

<html><head><title>预览</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width,user-scalable=no"><script type="text/javascript" src="jquery.min.js"></script><script type="text/javascript" src="jquery-1.9.1.min.js"></script><script type="text/javascript" src="html2canvas.js"></script><style>*{margin: 0;padding: 0; -webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;}body{font-family: "微软雅黑";font-size: 14px;color: #000000;-webkit-overflow-scrolling: touch;}a{text-decoration: none;color: #000000;}.all{position: absolute;overflow: auto;width: 100%;height: 100%;}.all .card{width: 100%;margin-top: 2px; position: absolute; display:block; overflow-x:hidden; overflow-y:auto }/*height: 202px;*/.all .card .card_bj{width: 100%; border: 1px solid #D5B8A6; margin-top:5px; position: relative; margin-top: 20px; float: left; display: block; overflow: hidden;}            .imgcard { position: absolute; background-color: white;top: 0px;left: -10000px;}            </style></head><body><div class="all"><div class="card" style="height: 549px;"><div class="card_bj card_back" style="height: 495px; width: 297px; margin-left: 11.5px;"><div style="width: 100%;height: 100%; background: #DE5E3B; position: absolute; "><div style="width: 100%;height: 80%;position: absolute;left: 0;top: 10%;background: #0B090A;"> </div><div style="position: absolute;left: 33%;top: 30%;"><img style="width: 80px;" src="/logo/bd_logo1_31bdc765.png"></div><div style="position: absolute;color: white;width: 100%;text-align: center; font-size: 16px;top: 64%;">我的智能名片</div><div style="position: absolute;color: white;width: 100%;text-align: center; font-size: 12px;top: 73%;">公司名称</div><div style="position: absolute;color: white;width: 100%;text-align: center; font-size: 6px;top: 77%; font-family: arial;">Chongqing new her network technology co . LTD</div></div></div><div style="width:100%; height:30px; margin-bottom: 50px; line-height:30px; text-align:center; float:left;" οnclick="htmlimg('.card .card_back', '.imgcard .card_back')">生成图片</div></div></div><div><div class="imgcard"><div class="card_bj card_back" style="position: absolute; overflow: auto; background-color: white; width: 297px; height: 495px;"></div></div></div><script type="text/javascript" src="pcpreview.js"></script></body>
</html>

pcpreview.js

$(function () {var card_bj_w = 313.2// Math.floor((parseInt($(".all .card .card_bj").width()) * 0.94 - 2) * 100) / 100var card_bj_h = 313.2 / 90 * 54$(".card .card_bj").css({"height": card_bj_h,"width": card_bj_w,"margin-left": (parseInt($(".all .card .card_bj").width()) - card_bj_w) / 2 + "px"})$(".all .card").css({"height": parseInt($(window).height()) + 27})$(".card_btn").hide()setTimeout(function () {$(".card_btn").show()}, 1500)
})function gettransform(clschildren) {if ($(clschildren).css("transform") == 'none') {return 0;} else {var trans = $(clschildren).css("transform");var values = trans.split('(')[1].split(')')[0].split(',');var one = values[0];var two = values[1];var scale = Math.sqrt(one * one + two * two);var sin = two / scale;return Math.round(Math.atan2(two, one) * (180 / Math.PI));}
}/type = 0 div   type = 1 img 等比例放大//
function div_install(obj, card_actual, card_w, card_h, type) {var card_percentw = parseFloat(card_actual) * parseFloat(card_w) / 100.00;var card_percenth = parseFloat(card_actual) * parseFloat(card_h) / 100.00;var transformmatrix = $(obj).css("transform")if (transformmatrix != undefined && transformmatrix != "none") {$(obj).css("transform", "rotate(0deg)");}if (type == 1) {var widthint = $(obj).width()var heightint = $(obj).height()var widthpint = $(obj).parent().width()var heightpint = $(obj).parent().height()if (widthint > 0) {$(obj).width(actualFloat(widthint, card_actual))}if (heightint > 0) {$(obj).height(actualFloat(heightint, card_actual))}if (widthpint > 0) {$(obj).parent().width(actualFloat(widthpint, card_actual));}if (heightpint > 0) {$(obj).parent().height(actualFloat(heightpint, card_actual));}} else {if ($(obj).children("img").length == 0) {if (type == 0 && $(obj).text().trim().length > 0) {$(obj).css("font-size", actualFloat($(obj).css("font-size"), card_actual));} else {var widthint = $(obj).width()var heightint = $(obj).height()$(obj).width(actualFloat(widthint, card_actual))$(obj).height(actualFloat(heightint, card_actual))}}}var csstop = $(obj).css("top")if (pcard_float(csstop) != 0) {if (csstop.indexOf('%') != -1) {$(obj).css("top", actualFloat(csstop, card_percenth));} else {$(obj).css("top", actualFloat(csstop, card_actual));}}var cssleft = $(obj).css("left")if (pcard_float(cssleft) != 0) {if (cssleft.indexOf('%') != -1) {$(obj).css("left", actualFloat(cssleft, card_percentw));} else {$(obj).css("left", actualFloat(cssleft, card_actual));}}var cssmarginleft = $(obj).css("margin-left")if (pcard_float(cssmarginleft) != 0) {if (cssmarginleft.indexOf('%') != -1) {$(obj).css("margin-left", actualFloat(cssmarginleft, card_percentw));} else {$(obj).css("margin-left", actualFloat(cssmarginleft, card_actual));}}var cssmargintop = $(obj).css("margin-top")if (pcard_float(cssmargintop) != 0) {if (cssmargintop.indexOf('%') != -1) {$(obj).css("margin-top", actualFloat(cssmargintop, card_percenth));} else {$(obj).css("margin-top", actualFloat(cssmargintop, card_actual));}}var csspaddingleft = $(obj).css("padding-left")if (pcard_float(csspaddingleft) != 0) {if (csspaddingleft.indexOf('%') != -1) {$(obj).css("padding-left", actualFloat(csspaddingleft, card_percentw));} else {$(obj).css("padding-left", actualFloat(csspaddingleft, card_actual));}}var csspaddingtop = $(obj).css("padding-top")if (pcard_float(csspaddingtop) != 0) {if (csspaddingtop.indexOf('%') != -1) {$(obj).css("padding-top", actualFloat(csspaddingtop, card_percenth));} else {$(obj).css("padding-top", actualFloat(csspaddingtop, card_actual));}}var cssborderwidth = $(obj).css("border-width")if (pcard_float(cssborderwidth) != 0) {if (cssborderwidth.indexOf('%') != -1) {$(obj).css("border-width", actualFloat(cssborderwidth, card_percenth));} else {$(obj).css("border-width", actualFloat(cssborderwidth, card_actual));}}if (transformmatrix != undefined && transformmatrix != "none") {$(obj).css("transform", transformmatrix);}
}function pcard_float(obj) {obj = obj.toString().replace(/[^-0-9][^0-9]/ig, "");if (!isNaN(parseFloat(obj))) {if (obj.toString().split(".").length == 1) {return parseInt(obj)} else if (obj.toString().split(".")[1].length > 4) {return parseFloat(parseFloat(obj).toFixed(4))}return parseFloat(obj)} else {return 0}
}function htmlimg1(html_div, img_div) {$(img_div).show()var card_w = 313.2 //长var card_h = 313.2 / 90 * 54 //宽var actual_w = 648$(img_div).css({ "width": card_w, "height": card_h })var card_actual = actual_w / card_w //和要生成长宽的实际比例card_actual = parseFloat(parseFloat(card_actual).toFixed(4))var pritstr = ""$(img_div).html($(html_div).html())var width = 0, height = 0;var transformmatrix = ""$(img_div + " div div").each(function () {div_install($(this), card_actual, card_w, card_h, 0);})$(img_div + " img").each(function () {div_install($(this), card_actual, card_w, card_h, 1);})div_install($($(img_div + " div").get(0)), card_actual, card_w, card_h, 0);
}function htmlimg(html_div, img_div) {$(".imgcard .card_bj").hide()if ($(img_div).children("div").length == 0 && $(img_div).children("img").length > 0) {$(img_div).show()$(".imgcard").css({ "width": parseInt($("body", window.parent.document).width()), "height": parseInt($(window).height()), "left": "0px" })$($(".all").get(0)).css({ "display": "none" })} else if ($(img_div).children("div").length > 0) {$(img_div).show()var card_w = 313.2 //长var card_h = 313.2 / 90 * 54 //宽var actual_w = 648var actual_h = 389var card_actual = actual_w / card_w //和要生成长宽的实际比例card_actual = parseFloat(parseFloat(card_actual).toFixed(4))actual_w = card_w * card_actualactual_h = card_h * card_actualsetTimeout(function () {$(img_div).css({ "width": actual_w, "height": actual_h })$(".imgcard").css({ "width": actual_w, "height": actual_h+70 })html2canvas($($(img_div).children("div").get(0)), {allowTaint: true,taintTest: false,onrendered: function (canvas) {canvas.id = "mycanvas";//生成base64图片数据    var dataUrl = canvas.toDataURL("image/jpg").replace("image/jpg", "image/octet-stream");var newImg = document.createElement("img");newImg.src = dataUrl;$(img_div).html(newImg);$(img_div + " img").css({ "width": parseFloat(parseInt($("body", window.parent.document).width()) * 0.8) - 2, "border": "1px solid red", "margin-left": "" + parseInt($("body", window.parent.document).width()) * 0.1 + "px" })$(".imgcard").css({ "overflow-x": "hidden", "overflow-y": "auto", "width": parseInt($("body", window.parent.document).width()), "height": parseInt($(window).height()) })$(img_div).css({ "width": $("body", window.parent.document).width(), "height": $(window).height() })}})$(".imgcard").css({ "left": "0px" })$($(".all").get(0)).css({ "display": "none" })}, 500)}
}//数字等比例放大
function actualFloat(obj, card_actual) {if (obj == undefined) {return 0;} else {if (!isNaN(obj)) {return parseFloat((parseFloat(obj) * card_actual).toFixed(2))} else {return parseFloat((parseFloat(obj.replace(/[^-0-9][^0-9]/ig, "")) * card_actual).toFixed(2))}}
}htmlimg1('.card .card_back', '.imgcard .card_back')

html2canvas.js

(function (window, document, undefined) {"use strict";var _html2canvas = {},previousElement,computedCSS,html2canvas;_html2canvas.Util = {};_html2canvas.Util.log = function (a) {if (_html2canvas.logging && window.console && window.console.log) {window.console.log(a);}};_html2canvas.Util.trimText = (function (isNative) {return function (input) {return isNative ? isNative.apply(input) : ((input || '') + '').replace(/^\s+|\s+$/g, '');};})(String.prototype.trim);_html2canvas.Util.asFloat = function (v) {return parseFloat(v);};(function () {// TODO: support all possible length valuesvar TEXT_SHADOW_PROPERTY = /((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;var TEXT_SHADOW_VALUES = /(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;_html2canvas.Util.parseTextShadows = function (value) {if (!value || value === 'none') {return [];}// find multiple shadow declarationsvar shadows = value.match(TEXT_SHADOW_PROPERTY),results = [];for (var i = 0; shadows && (i < shadows.length) ; i++) {var s = shadows[i].match(TEXT_SHADOW_VALUES);results.push({color: s[0],offsetX: s[1] ? s[1].replace('px', '') : 0,offsetY: s[2] ? s[2].replace('px', '') : 0,blur: s[3] ? s[3].replace('px', '') : 0});}return results;};})();_html2canvas.Util.parseBackgroundImage = function (value) {var whitespace = ' \r\n\t',method, definition, prefix, prefix_i, block, results = [],c, mode = 0, numParen = 0, quote, args;var appendResult = function () {if (method) {if (definition.substr(0, 1) === '"') {definition = definition.substr(1, definition.length - 2);}if (definition) {args.push(definition);}if (method.substr(0, 1) === '-' &&(prefix_i = method.indexOf('-', 1) + 1) > 0) {prefix = method.substr(0, prefix_i);method = method.substr(prefix_i);}results.push({prefix: prefix,method: method.toLowerCase(),value: block,args: args});}args = []; //for some odd reason, setting .length = 0 didn't work in safarimethod =prefix =definition =block = '';};appendResult();for (var i = 0, ii = value.length; i < ii; i++) {c = value[i];if (mode === 0 && whitespace.indexOf(c) > -1) {continue;}switch (c) {case '"':if (!quote) {quote = c;}else if (quote === c) {quote = null;}break;case '(':if (quote) { break; }else if (mode === 0) {mode = 1;block += c;continue;} else {numParen++;}break;case ')':if (quote) { break; }else if (mode === 1) {if (numParen === 0) {mode = 0;block += c;appendResult();continue;} else {numParen--;}}break;case ',':if (quote) { break; }else if (mode === 0) {appendResult();continue;}else if (mode === 1) {if (numParen === 0 && !method.match(/^url$/i)) {args.push(definition);definition = '';block += c;continue;}}break;}block += c;if (mode === 0) { method += c; }else { definition += c; }}appendResult();return results;};_html2canvas.Util.Bounds = function (element) {var clientRect, bounds = {};if (element.getBoundingClientRect) {clientRect = element.getBoundingClientRect();// TODO add scroll position to bounds, so no scrolling of window necessarybounds.top = clientRect.top;bounds.bottom = clientRect.bottom || (clientRect.top + clientRect.height);bounds.left = clientRect.left;bounds.width = element.offsetWidth;bounds.height = element.offsetHeight;}return bounds;};// TODO ideally, we'd want everything to go through this function instead of Util.Bounds,// but would require further work to calculate the correct positions for elements with offsetParents_html2canvas.Util.OffsetBounds = function (element) {var parent = element.offsetParent ? _html2canvas.Util.OffsetBounds(element.offsetParent) : { top: 0, left: 0 };return {top: element.offsetTop + parent.top,bottom: element.offsetTop + element.offsetHeight + parent.top,left: element.offsetLeft + parent.left,width: element.offsetWidth,height: element.offsetHeight};};function toPX(element, attribute, value) {var rsLeft = element.runtimeStyle && element.runtimeStyle[attribute],left,style = element.style;// Check if we are not dealing with pixels, (Opera has issues with this)// Ported from jQuery css.js// From the awesome hack by Dean Edwards// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291// If we're not dealing with a regular pixel number// but a number that has a weird ending, we need to convert it to pixelsif (!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(value) && /^-?\d/.test(value)) {// Remember the original valuesleft = style.left;// Put in the new values to get a computed value outif (rsLeft) {element.runtimeStyle.left = element.currentStyle.left;}style.left = attribute === "fontSize" ? "1em" : (value || 0);value = style.pixelLeft + "px";// Revert the changed valuesstyle.left = left;if (rsLeft) {element.runtimeStyle.left = rsLeft;}}if (!/^(thin|medium|thick)$/i.test(value)) {return Math.round(parseFloat(value)) + "px";}return value;}function asInt(val) {return parseInt(val, 10);}function parseBackgroundSizePosition(value, element, attribute, index) {value = (value || '').split(',');value = value[index || 0] || value[0] || 'auto';value = _html2canvas.Util.trimText(value).split(' ');if (attribute === 'backgroundSize' && (!value[0] || value[0].match(/cover|contain|auto/))) {//these values will be handled in the parent function} else {value[0] = (value[0].indexOf("%") === -1) ? toPX(element, attribute + "X", value[0]) : value[0];if (value[1] === undefined) {if (attribute === 'backgroundSize') {value[1] = 'auto';return value;} else {// IE 9 doesn't return double digit alwaysvalue[1] = value[0];}}value[1] = (value[1].indexOf("%") === -1) ? toPX(element, attribute + "Y", value[1]) : value[1];}return value;}_html2canvas.Util.getCSS = function (element, attribute, index) {if (previousElement !== element) {computedCSS = document.defaultView.getComputedStyle(element, null);}var value = computedCSS[attribute];if (/^background(Size|Position)$/.test(attribute)) {return parseBackgroundSizePosition(value, element, attribute, index);} else if (/border(Top|Bottom)(Left|Right)Radius/.test(attribute)) {var arr = value.split(" ");if (arr.length <= 1) {arr[1] = arr[0];}return arr.map(asInt);}return value;};_html2canvas.Util.resizeBounds = function (current_width, current_height, target_width, target_height, stretch_mode) {var target_ratio = target_width / target_height,current_ratio = current_width / current_height,output_width, output_height;if (!stretch_mode || stretch_mode === 'auto') {output_width = target_width;output_height = target_height;} else if (target_ratio < current_ratio ^ stretch_mode === 'contain') {output_height = target_height;output_width = target_height * current_ratio;} else {output_width = target_width;output_height = target_width / current_ratio;}return {width: output_width,height: output_height};};function backgroundBoundsFactory(prop, el, bounds, image, imageIndex, backgroundSize) {var bgposition = _html2canvas.Util.getCSS(el, prop, imageIndex),topPos,left,percentage,val;if (bgposition.length === 1) {val = bgposition[0];bgposition = [];bgposition[0] = val;bgposition[1] = val;}if (bgposition[0].toString().indexOf("%") !== -1) {percentage = (parseFloat(bgposition[0]) / 100);left = bounds.width * percentage;if (prop !== 'backgroundSize') {left -= (backgroundSize || image).width * percentage;}} else {if (prop === 'backgroundSize') {if (bgposition[0] === 'auto') {left = image.width;} else {if (/contain|cover/.test(bgposition[0])) {var resized = _html2canvas.Util.resizeBounds(image.width, image.height, bounds.width, bounds.height, bgposition[0]);left = resized.width;topPos = resized.height;} else {left = parseInt(bgposition[0], 10);}}} else {left = parseInt(bgposition[0], 10);}}if (bgposition[1] === 'auto') {topPos = left / image.width * image.height;} else if (bgposition[1].toString().indexOf("%") !== -1) {percentage = (parseFloat(bgposition[1]) / 100);topPos = bounds.height * percentage;if (prop !== 'backgroundSize') {topPos -= (backgroundSize || image).height * percentage;}} else {topPos = parseInt(bgposition[1], 10);}return [left, topPos];}_html2canvas.Util.BackgroundPosition = function (el, bounds, image, imageIndex, backgroundSize) {var result = backgroundBoundsFactory('backgroundPosition', el, bounds, image, imageIndex, backgroundSize);return { left: result[0], top: result[1] };};_html2canvas.Util.BackgroundSize = function (el, bounds, image, imageIndex) {var result = backgroundBoundsFactory('backgroundSize', el, bounds, image, imageIndex);return { width: result[0], height: result[1] };};_html2canvas.Util.Extend = function (options, defaults) {for (var key in options) {if (options.hasOwnProperty(key)) {defaults[key] = options[key];}}return defaults;};/** Derived from jQuery.contents()* Copyright 2010, John Resig* Dual licensed under the MIT or GPL Version 2 licenses.* http://jquery.org/license*/_html2canvas.Util.Children = function (elem) {var children;try {children = (elem.nodeName && elem.nodeName.toUpperCase() === "IFRAME") ? elem.contentDocument || elem.contentWindow.document : (function (array) {var ret = [];if (array !== null) {(function (first, second) {var i = first.length,j = 0;if (typeof second.length === "number") {for (var l = second.length; j < l; j++) {first[i++] = second[j];}} else {while (second[j] !== undefined) {first[i++] = second[j++];}}first.length = i;return first;})(ret, array);}return ret;})(elem.childNodes);} catch (ex) {_html2canvas.Util.log("html2canvas.Util.Children failed with exception: " + ex.message);children = [];}return children;};_html2canvas.Util.isTransparent = function (backgroundColor) {return (backgroundColor === "transparent" || backgroundColor === "rgba(0, 0, 0, 0)");};_html2canvas.Util.Font = (function () {var fontData = {};return function (font, fontSize, doc) {if (fontData[font + "-" + fontSize] !== undefined) {return fontData[font + "-" + fontSize];}var container = doc.createElement('div'),img = doc.createElement('img'),span = doc.createElement('span'),sampleText = 'Hidden Text',baseline,middle,metricsObj;container.style.visibility = "hidden";container.style.fontFamily = font;container.style.fontSize = fontSize;container.style.margin = 0;container.style.padding = 0;doc.body.appendChild(container);// http://probablyprogramming.com/2009/03/15/the-tiniest-gif-ever (handtinywhite.gif)img.src = "data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=";img.width = 1;img.height = 1;img.style.margin = 0;img.style.padding = 0;img.style.verticalAlign = "baseline";span.style.fontFamily = font;span.style.fontSize = fontSize;span.style.margin = 0;span.style.padding = 0;span.appendChild(doc.createTextNode(sampleText));container.appendChild(span);container.appendChild(img);baseline = (img.offsetTop - span.offsetTop) + 1;container.removeChild(span);container.appendChild(doc.createTextNode(sampleText));container.style.lineHeight = "normal";img.style.verticalAlign = "super";middle = (img.offsetTop - container.offsetTop) + 1;metricsObj = {baseline: baseline,lineWidth: 1,middle: middle};fontData[font + "-" + fontSize] = metricsObj;doc.body.removeChild(container);return metricsObj;};})();(function () {var Util = _html2canvas.Util,Generate = {};_html2canvas.Generate = Generate;var reGradients = [/^(-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,%\(\)]+)\)$/];/** TODO: Add IE10 vendor prefix (-ms) support* TODO: Add W3C gradient (linear-gradient) support* TODO: Add old Webkit -webkit-gradient(radial, ...) support* TODO: Maybe some RegExp optimizations are possible ;o)*/Generate.parseGradient = function (css, bounds) {var gradient, i, len = reGradients.length, m1, stop, m2, m2Len, step, m3, tl, tr, br, bl;for (i = 0; i < len; i += 1) {m1 = css.match(reGradients[i]);if (m1) {break;}}if (m1) {switch (m1[1]) {case '-webkit-linear-gradient':case '-o-linear-gradient':gradient = {type: 'linear',x0: null,y0: null,x1: null,y1: null,colorStops: []};// get coordinatesm2 = m1[2].match(/\w+/g);if (m2) {m2Len = m2.length;for (i = 0; i < m2Len; i += 1) {switch (m2[i]) {case 'top':gradient.y0 = 0;gradient.y1 = bounds.height;break;case 'right':gradient.x0 = bounds.width;gradient.x1 = 0;break;case 'bottom':gradient.y0 = bounds.height;gradient.y1 = 0;break;case 'left':gradient.x0 = 0;gradient.x1 = bounds.width;break;}}}if (gradient.x0 === null && gradient.x1 === null) { // centergradient.x0 = gradient.x1 = bounds.width / 2;}if (gradient.y0 === null && gradient.y1 === null) { // centergradient.y0 = gradient.y1 = bounds.height / 2;}// get colors and stopsm2 = m1[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 (m2) {m2Len = m2.length;step = 1 / Math.max(m2Len - 1, 1);for (i = 0; i < m2Len; i += 1) {m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if (m3[2]) {stop = parseFloat(m3[2]);if (m3[3] === '%') {stop /= 100;} else { // px - stupid operastop /= bounds.width;}} else {stop = i * step;}gradient.colorStops.push({color: m3[1],stop: stop});}}break;case '-webkit-gradient':gradient = {type: m1[2] === 'radial' ? 'circle' : m1[2], // TODO: Add radial gradient support for older mozilla definitionsx0: 0,y0: 0,x1: 0,y1: 0,colorStops: []};// get coordinatesm2 = m1[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/);if (m2) {gradient.x0 = (m2[1] * bounds.width) / 100;gradient.y0 = (m2[2] * bounds.height) / 100;gradient.x1 = (m2[3] * bounds.width) / 100;gradient.y1 = (m2[4] * bounds.height) / 100;}// get colors and stopsm2 = m1[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 (m2) {m2Len = m2.length;for (i = 0; i < m2Len; i += 1) {m3 = m2[i].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/);stop = parseFloat(m3[2]);if (m3[1] === 'from') {stop = 0.0;}if (m3[1] === 'to') {stop = 1.0;}gradient.colorStops.push({color: m3[3],stop: stop});}}break;case '-moz-linear-gradient':gradient = {type: 'linear',x0: 0,y0: 0,x1: 0,y1: 0,colorStops: []};// get coordinatesm2 = m1[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);// m2[1] == 0%   -> left// m2[1] == 50%  -> center// m2[1] == 100% -> right// m2[2] == 0%   -> top// m2[2] == 50%  -> center// m2[2] == 100% -> bottomif (m2) {gradient.x0 = (m2[1] * bounds.width) / 100;gradient.y0 = (m2[2] * bounds.height) / 100;gradient.x1 = bounds.width - gradient.x0;gradient.y1 = bounds.height - gradient.y0;}// get colors and stopsm2 = m1[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g);if (m2) {m2Len = m2.length;step = 1 / Math.max(m2Len - 1, 1);for (i = 0; i < m2Len; i += 1) {m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/);if (m3[2]) {stop = parseFloat(m3[2]);if (m3[3]) { // percentagestop /= 100;}} else {stop = i * step;}gradient.colorStops.push({color: m3[1],stop: stop});}}break;case '-webkit-radial-gradient':case '-moz-radial-gradient':case '-o-radial-gradient':gradient = {type: 'circle',x0: 0,y0: 0,x1: bounds.width,y1: bounds.height,cx: 0,cy: 0,rx: 0,ry: 0,colorStops: []};// centerm2 = m1[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);if (m2) {gradient.cx = (m2[1] * bounds.width) / 100;gradient.cy = (m2[2] * bounds.height) / 100;}// sizem2 = m1[3].match(/\w+/);m3 = m1[4].match(/[a-z\-]*/);if (m2 && m3) {switch (m3[0]) {case 'farthest-corner':case 'cover': // is equivalent to farthest-cornercase '': // mozilla removes "cover" from definition :(tl = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.cy, 2));tr = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));br = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));bl = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.cy, 2));gradient.rx = gradient.ry = Math.max(tl, tr, br, bl);break;case 'closest-corner':tl = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.cy, 2));tr = Math.sqrt(Math.pow(gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));br = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.y1 - gradient.cy, 2));bl = Math.sqrt(Math.pow(gradient.x1 - gradient.cx, 2) + Math.pow(gradient.cy, 2));gradient.rx = gradient.ry = Math.min(tl, tr, br, bl);break;case 'farthest-side':if (m2[0] === 'circle') {gradient.rx = gradient.ry = Math.max(gradient.cx,gradient.cy,gradient.x1 - gradient.cx,gradient.y1 - gradient.cy);} else { // ellipsegradient.type = m2[0];gradient.rx = Math.max(gradient.cx,gradient.x1 - gradient.cx);gradient.ry = Math.max(gradient.cy,gradient.y1 - gradient.cy);}break;case 'closest-side':case 'contain': // is equivalent to closest-sideif (m2[0] === 'circle') {gradient.rx = gradient.ry = Math.min(gradient.cx,gradient.cy,gradient.x1 - gradient.cx,gradient.y1 - gradient.cy);} else { // ellipsegradient.type = m2[0];gradient.rx = Math.min(gradient.cx,gradient.x1 - gradient.cx);gradient.ry = Math.min(gradient.cy,gradient.y1 - gradient.cy);}break;// TODO: add support for "30px 40px" sizes (webkit only)}}// color stopsm2 = m1[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 (m2) {m2Len = m2.length;step = 1 / Math.max(m2Len - 1, 1);for (i = 0; i < m2Len; i += 1) {m3 = m2[i].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if (m3[2]) {stop = parseFloat(m3[2]);if (m3[3] === '%') {stop /= 100;} else { // px - stupid operastop /= bounds.width;}} else {stop = i * step;}gradient.colorStops.push({color: m3[1],stop: stop});}}break;}}return gradient;};function addScrollStops(grad) {return function (colorStop) {try {grad.addColorStop(colorStop.stop, colorStop.color);}catch (e) {Util.log(['failed to add color stop: ', e, '; tried to add: ', colorStop]);}};}Generate.Gradient = function (src, bounds) {if (bounds.width === 0 || bounds.height === 0) {return;}var canvas = document.createElement('canvas'),ctx = canvas.getContext('2d'),gradient, grad;canvas.width = bounds.width;canvas.height = bounds.height;// TODO: add support for multi defined background gradientsgradient = _html2canvas.Generate.parseGradient(src, bounds);if (gradient) {switch (gradient.type) {case 'linear':grad = ctx.createLinearGradient(gradient.x0, gradient.y0, gradient.x1, gradient.y1);gradient.colorStops.forEach(addScrollStops(grad));ctx.fillStyle = grad;ctx.fillRect(0, 0, bounds.width, bounds.height);break;case 'circle':grad = ctx.createRadialGradient(gradient.cx, gradient.cy, 0, gradient.cx, gradient.cy, gradient.rx);gradient.colorStops.forEach(addScrollStops(grad));ctx.fillStyle = grad;ctx.fillRect(0, 0, bounds.width, bounds.height);break;case 'ellipse':var canvasRadial = document.createElement('canvas'),ctxRadial = canvasRadial.getContext('2d'),ri = Math.max(gradient.rx, gradient.ry),di = ri * 2;canvasRadial.width = canvasRadial.height = di;grad = ctxRadial.createRadialGradient(gradient.rx, gradient.ry, 0, gradient.rx, gradient.ry, ri);gradient.colorStops.forEach(addScrollStops(grad));ctxRadial.fillStyle = grad;ctxRadial.fillRect(0, 0, di, di);ctx.fillStyle = gradient.colorStops[gradient.colorStops.length - 1].color;ctx.fillRect(0, 0, canvas.width, canvas.height);ctx.drawImage(canvasRadial, gradient.cx - gradient.rx, gradient.cy - gradient.ry, 2 * gradient.rx, 2 * gradient.ry);break;}}return canvas;};Generate.ListAlpha = function (number) {var tmp = "",modulus;do {modulus = number % 26;tmp = String.fromCharCode((modulus) + 64) + tmp;number = number / 26;} while ((number * 26) > 26);return tmp;};Generate.ListRoman = function (number) {var romanArray = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"],decimal = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1],roman = "",v,len = romanArray.length;if (number <= 0 || number >= 4000) {return number;}for (v = 0; v < len; v += 1) {while (number >= decimal[v]) {number -= decimal[v];roman += romanArray[v];}}return roman;};})();function h2cRenderContext(width, height) {var storage = [];return {storage: storage,width: width,height: height,clip: function () {storage.push({type: "function",name: "clip",'arguments': arguments});},translate: function () {storage.push({type: "function",name: "translate",'arguments': arguments});},fill: function () {storage.push({type: "function",name: "fill",'arguments': arguments});},save: function () {storage.push({type: "function",name: "save",'arguments': arguments});},restore: function () {storage.push({type: "function",name: "restore",'arguments': arguments});},fillRect: function () {storage.push({type: "function",name: "fillRect",'arguments': arguments});},createPattern: function () {storage.push({type: "function",name: "createPattern",'arguments': arguments});},drawShape: function () {var shape = [];storage.push({type: "function",name: "drawShape",'arguments': shape});return {moveTo: function () {shape.push({name: "moveTo",'arguments': arguments});},lineTo: function () {shape.push({name: "lineTo",'arguments': arguments});},arcTo: function () {shape.push({name: "arcTo",'arguments': arguments});},bezierCurveTo: function () {shape.push({name: "bezierCurveTo",'arguments': arguments});},quadraticCurveTo: function () {shape.push({name: "quadraticCurveTo",'arguments': arguments});}};},drawImage: function () {storage.push({type: "function",name: "drawImage",'arguments': arguments});},fillText: function () {storage.push({type: "function",name: "fillText",'arguments': arguments});},setVariable: function (variable, value) {storage.push({type: "variable",name: variable,'arguments': value});return value;}};}_html2canvas.Parse = function (images, options) {window.scroll(0, 0);var element = ((options.elements === undefined) ? document.body : options.elements[0]), // select body by defaultnumDraws = 0,doc = element.ownerDocument,Util = _html2canvas.Util,support = Util.Support(options, doc),ignoreElementsRegExp = new RegExp("(" + options.ignoreElements + ")"),body = doc.body,getCSS = Util.getCSS,pseudoHide = "___html2canvas___pseudoelement",hidePseudoElements = doc.createElement('style');hidePseudoElements.innerHTML = '.' + pseudoHide + '-before:before { content: "" !important; display: none !important; }' +'.' + pseudoHide + '-after:after { content: "" !important; display: none !important; }';body.appendChild(hidePseudoElements);images = images || {};function documentWidth() {return Math.max(Math.max(doc.body.scrollWidth, doc.documentElement.scrollWidth),Math.max(doc.body.offsetWidth, doc.documentElement.offsetWidth),Math.max(doc.body.clientWidth, doc.documentElement.clientWidth));}function documentHeight() {return Math.max(Math.max(doc.body.scrollHeight, doc.documentElement.scrollHeight),Math.max(doc.body.offsetHeight, doc.documentElement.offsetHeight),Math.max(doc.body.clientHeight, doc.documentElement.clientHeight));}function getCSSInt(element, attribute) {var val = parseInt(getCSS(element, attribute), 10);return (isNaN(val)) ? 0 : val; // borders in old IE are throwing 'medium' for demo.html}function renderRect(ctx, x, y, w, h, bgcolor) {if (bgcolor !== "transparent") {ctx.setVariable("fillStyle", bgcolor);ctx.fillRect(x, y, w, h);numDraws += 1;}}function capitalize(m, p1, p2) {if (m.length > 0) {return p1 + p2.toUpperCase();}}function textTransform(text, transform) {switch (transform) {case "lowercase":return text.toLowerCase();case "capitalize":return text.replace(/(^|\s|:|-|\(|\))([a-z])/g, capitalize);case "uppercase":return text.toUpperCase();default:return text;}}function noLetterSpacing(letter_spacing) {return (/^(normal|none|0px)$/.test(letter_spacing));}function drawText(currentText, x, y, ctx) {if (currentText !== null && Util.trimText(currentText).length > 0) {ctx.fillText(currentText, x, y);numDraws += 1;}}function setTextVariables(ctx, el, text_decoration, color) {var align = false,bold = getCSS(el, "fontWeight"),family = getCSS(el, "fontFamily"),size = getCSS(el, "fontSize"),shadows = Util.parseTextShadows(getCSS(el, "textShadow"));switch (parseInt(bold, 10)) {case 401:bold = "bold";break;case 400:bold = "normal";break;}ctx.setVariable("fillStyle", color);ctx.setVariable("font", [getCSS(el, "fontStyle"), getCSS(el, "fontVariant"), bold, size, family].join(" "));ctx.setVariable("textAlign", (align) ? "right" : "left");if (shadows.length) {// TODO: support multiple text shadows// apply the first text shadowctx.setVariable("shadowColor", shadows[0].color);ctx.setVariable("shadowOffsetX", shadows[0].offsetX);ctx.setVariable("shadowOffsetY", shadows[0].offsetY);ctx.setVariable("shadowBlur", shadows[0].blur);}if (text_decoration !== "none") {return Util.Font(family, size, doc);}}function renderTextDecoration(ctx, text_decoration, bounds, metrics, color) {switch (text_decoration) {case "underline":// Draws a line at the baseline of the font// TODO As some browsers display the line as more than 1px if the font-size is big, need to take that into account both in position and sizerenderRect(ctx, bounds.left, Math.round(bounds.top + metrics.baseline + metrics.lineWidth), bounds.width, 1, color);break;case "overline":renderRect(ctx, bounds.left, Math.round(bounds.top), bounds.width, 1, color);break;case "line-through":// TODO try and find exact position for line-throughrenderRect(ctx, bounds.left, Math.ceil(bounds.top + metrics.middle + metrics.lineWidth), bounds.width, 1, color);break;}}function getTextBounds(state, text, textDecoration, isLast, transform) {var bounds;if (support.rangeBounds && !transform) {if (textDecoration !== "none" || Util.trimText(text).length !== 0) {bounds = textRangeBounds(text, state.node, state.textOffset);}state.textOffset += text.length;} else if (state.node && typeof state.node.nodeValue === "string") {var newTextNode = (isLast) ? state.node.splitText(text.length) : null;bounds = textWrapperBounds(state.node, transform);state.node = newTextNode;}return bounds;}function textRangeBounds(text, textNode, textOffset) {var range = doc.createRange();range.setStart(textNode, textOffset);range.setEnd(textNode, textOffset + text.length);return range.getBoundingClientRect();}function textWrapperBounds(oldTextNode, transform) {var parent = oldTextNode.parentNode,wrapElement = doc.createElement('wrapper'),backupText = oldTextNode.cloneNode(true);wrapElement.appendChild(oldTextNode.cloneNode(true));parent.replaceChild(wrapElement, oldTextNode);var bounds = transform ? Util.OffsetBounds(wrapElement) : Util.Bounds(wrapElement);parent.replaceChild(backupText, wrapElement);return bounds;}function renderText(el, textNode, stack) {var ctx = stack.ctx,color = getCSS(el, "color"),textDecoration = getCSS(el, "textDecoration"),textAlign = getCSS(el, "textAlign"),metrics,textList,state = {node: textNode,textOffset: 0};if (Util.trimText(textNode.nodeValue).length > 0) {textNode.nodeValue = textTransform(textNode.nodeValue, getCSS(el, "textTransform"));textAlign = textAlign.replace(["-webkit-auto"], ["auto"]);textList = (!options.letterRendering && /^(left|right|justify|auto)$/.test(textAlign) && noLetterSpacing(getCSS(el, "letterSpacing"))) ?textNode.nodeValue.split(/(\b| )/): textNode.nodeValue.split("");metrics = setTextVariables(ctx, el, textDecoration, color);if (options.chinese) {textList.forEach(function (word, index) {if (/.*[\u4E00-\u9FA5].*$/.test(word)) {word = word.split("");word.unshift(index, 1);textList.splice.apply(textList, word);}});}textList.forEach(function (text, index) {var bounds = getTextBounds(state, text, textDecoration, (index < textList.length - 1), stack.transform.matrix);if (bounds) {drawText(text, bounds.left, bounds.bottom, ctx);renderTextDecoration(ctx, textDecoration, bounds, metrics, color);}});}}function listPosition(element, val) {var boundElement = doc.createElement("boundelement"),originalType,bounds;boundElement.style.display = "inline";originalType = element.style.listStyleType;element.style.listStyleType = "none";boundElement.appendChild(doc.createTextNode(val));element.insertBefore(boundElement, element.firstChild);bounds = Util.Bounds(boundElement);element.removeChild(boundElement);element.style.listStyleType = originalType;return bounds;}function elementIndex(el) {var i = -1,count = 1,childs = el.parentNode.childNodes;if (el.parentNode) {while (childs[++i] !== el) {if (childs[i].nodeType === 1) {count++;}}return count;} else {return -1;}}function listItemText(element, type) {var currentIndex = elementIndex(element), text;switch (type) {case "decimal":text = currentIndex;break;case "decimal-leading-zero":text = (currentIndex.toString().length === 1) ? currentIndex = "0" + currentIndex.toString() : currentIndex.toString();break;case "upper-roman":text = _html2canvas.Generate.ListRoman(currentIndex);break;case "lower-roman":text = _html2canvas.Generate.ListRoman(currentIndex).toLowerCase();break;case "lower-alpha":text = _html2canvas.Generate.ListAlpha(currentIndex).toLowerCase();break;case "upper-alpha":text = _html2canvas.Generate.ListAlpha(currentIndex);break;}return text + ". ";}function renderListItem(element, stack, elBounds) {var x,text,ctx = stack.ctx,type = getCSS(element, "listStyleType"),listBounds;if (/^(decimal|decimal-leading-zero|upper-alpha|upper-latin|upper-roman|lower-alpha|lower-greek|lower-latin|lower-roman)$/i.test(type)) {text = listItemText(element, type);listBounds = listPosition(element, text);setTextVariables(ctx, element, "none", getCSS(element, "color"));if (getCSS(element, "listStylePosition") === "inside") {ctx.setVariable("textAlign", "left");x = elBounds.left;} else {return;}drawText(text, x, listBounds.bottom, ctx);}}function loadImage(src) {var img = images[src];return (img && img.succeeded === true) ? img.img : false;}function clipBounds(src, dst) {var x = Math.max(src.left, dst.left),y = Math.max(src.top, dst.top),x2 = Math.min((src.left + src.width), (dst.left + dst.width)),y2 = Math.min((src.top + src.height), (dst.top + dst.height));return {left: x,top: y,width: x2 - x,height: y2 - y};}function setZ(element, stack, parentStack) {var newContext,isPositioned = stack.cssPosition !== 'static',zIndex = isPositioned ? getCSS(element, 'zIndex') : 'auto',opacity = getCSS(element, 'opacity'),isFloated = getCSS(element, 'cssFloat') !== 'none';// https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Understanding_z_index/The_stacking_context// When a new stacking context should be created:// the root element (HTML),// positioned (absolutely or relatively) with a z-index value other than "auto",// elements with an opacity value less than 1. (See the specification for opacity),// on mobile WebKit and Chrome 22+, position: fixed always creates a new stacking context, even when z-index is "auto" (See this post)stack.zIndex = newContext = h2czContext(zIndex);newContext.isPositioned = isPositioned;newContext.isFloated = isFloated;newContext.opacity = opacity;newContext.ownStacking = (zIndex !== 'auto' || opacity < 1);if (parentStack) {parentStack.zIndex.children.push(stack);}}function renderImage(ctx, element, image, bounds, borders) {var paddingLeft = getCSSInt(element, 'paddingLeft'),paddingTop = getCSSInt(element, 'paddingTop'),paddingRight = getCSSInt(element, 'paddingRight'),paddingBottom = getCSSInt(element, 'paddingBottom');drawImage(ctx,image,0, //sx0, //syimage.width, //swimage.height, //shbounds.left + paddingLeft + borders[3].width, //dxbounds.top + paddingTop + borders[0].width, // dybounds.width - (borders[1].width + borders[3].width + paddingLeft + paddingRight), //dwbounds.height - (borders[0].width + borders[2].width + paddingTop + paddingBottom) //dh);}function getBorderData(element) {return ["Top", "Right", "Bottom", "Left"].map(function (side) {return {width: getCSSInt(element, 'border' + side + 'Width'),color: getCSS(element, 'border' + side + 'Color')};});}function getBorderRadiusData(element) {return ["TopLeft", "TopRight", "BottomRight", "BottomLeft"].map(function (side) {return getCSS(element, 'border' + side + 'Radius');});}var getCurvePoints = (function (kappa) {return function (x, y, r1, r2) {var ox = (r1) * kappa, // control point offset horizontaloy = (r2) * kappa, // control point offset verticalxm = x + r1, // x-middleym = y + r2; // y-middlereturn {topLeft: bezierCurve({x: x,y: ym}, {x: x,y: ym - oy}, {x: xm - ox,y: y}, {x: xm,y: y}),topRight: bezierCurve({x: x,y: y}, {x: x + ox,y: y}, {x: xm,y: ym - oy}, {x: xm,y: ym}),bottomRight: bezierCurve({x: xm,y: y}, {x: xm,y: y + oy}, {x: x + ox,y: ym}, {x: x,y: ym}),bottomLeft: bezierCurve({x: xm,y: ym}, {x: xm - ox,y: ym}, {x: x,y: y + oy}, {x: x,y: y})};};})(4 * ((Math.sqrt(2) - 1) / 3));function bezierCurve(start, startControl, endControl, end) {var lerp = function (a, b, t) {return {x: a.x + (b.x - a.x) * t,y: a.y + (b.y - a.y) * t};};return {start: start,startControl: startControl,endControl: endControl,end: end,subdivide: function (t) {var ab = lerp(start, startControl, t),bc = lerp(startControl, endControl, t),cd = lerp(endControl, end, t),abbc = lerp(ab, bc, t),bccd = lerp(bc, cd, t),dest = lerp(abbc, bccd, t);return [bezierCurve(start, ab, abbc, dest), bezierCurve(dest, bccd, cd, end)];},curveTo: function (borderArgs) {borderArgs.push(["bezierCurve", startControl.x, startControl.y, endControl.x, endControl.y, end.x, end.y]);},curveToReversed: function (borderArgs) {borderArgs.push(["bezierCurve", endControl.x, endControl.y, startControl.x, startControl.y, start.x, start.y]);}};}function parseCorner(borderArgs, radius1, radius2, corner1, corner2, x, y) {if (radius1[0] > 0 || radius1[1] > 0) {borderArgs.push(["line", corner1[0].start.x, corner1[0].start.y]);corner1[0].curveTo(borderArgs);corner1[1].curveTo(borderArgs);} else {borderArgs.push(["line", x, y]);}if (radius2[0] > 0 || radius2[1] > 0) {borderArgs.push(["line", corner2[0].start.x, corner2[0].start.y]);}}function drawSide(borderData, radius1, radius2, outer1, inner1, outer2, inner2) {var borderArgs = [];if (radius1[0] > 0 || radius1[1] > 0) {borderArgs.push(["line", outer1[1].start.x, outer1[1].start.y]);outer1[1].curveTo(borderArgs);} else {borderArgs.push(["line", borderData.c1[0], borderData.c1[1]]);}if (radius2[0] > 0 || radius2[1] > 0) {borderArgs.push(["line", outer2[0].start.x, outer2[0].start.y]);outer2[0].curveTo(borderArgs);borderArgs.push(["line", inner2[0].end.x, inner2[0].end.y]);inner2[0].curveToReversed(borderArgs);} else {borderArgs.push(["line", borderData.c2[0], borderData.c2[1]]);borderArgs.push(["line", borderData.c3[0], borderData.c3[1]]);}if (radius1[0] > 0 || radius1[1] > 0) {borderArgs.push(["line", inner1[1].end.x, inner1[1].end.y]);inner1[1].curveToReversed(borderArgs);} else {borderArgs.push(["line", borderData.c4[0], borderData.c4[1]]);}return borderArgs;}function calculateCurvePoints(bounds, borderRadius, borders) {var x = bounds.left,y = bounds.top,width = bounds.width,height = bounds.height,tlh = borderRadius[0][0],tlv = borderRadius[0][1],trh = borderRadius[1][0],trv = borderRadius[1][1],brh = borderRadius[2][0],brv = borderRadius[2][1],blh = borderRadius[3][0],blv = borderRadius[3][1],topWidth = width - trh,rightHeight = height - brv,bottomWidth = width - brh,leftHeight = height - blv;return {topLeftOuter: getCurvePoints(x,y,tlh,tlv).topLeft.subdivide(0.5),topLeftInner: getCurvePoints(x + borders[3].width,y + borders[0].width,Math.max(0, tlh - borders[3].width),Math.max(0, tlv - borders[0].width)).topLeft.subdivide(0.5),topRightOuter: getCurvePoints(x + topWidth,y,trh,trv).topRight.subdivide(0.5),topRightInner: getCurvePoints(x + Math.min(topWidth, width + borders[3].width),y + borders[0].width,(topWidth > width + borders[3].width) ? 0 : trh - borders[3].width,trv - borders[0].width).topRight.subdivide(0.5),bottomRightOuter: getCurvePoints(x + bottomWidth,y + rightHeight,brh,brv).bottomRight.subdivide(0.5),bottomRightInner: getCurvePoints(x + Math.min(bottomWidth, width + borders[3].width),y + Math.min(rightHeight, height + borders[0].width),Math.max(0, brh - borders[1].width),Math.max(0, brv - borders[2].width)).bottomRight.subdivide(0.5),bottomLeftOuter: getCurvePoints(x,y + leftHeight,blh,blv).bottomLeft.subdivide(0.5),bottomLeftInner: getCurvePoints(x + borders[3].width,y + leftHeight,Math.max(0, blh - borders[3].width),Math.max(0, blv - borders[2].width)).bottomLeft.subdivide(0.5)};}function getBorderClip(element, borderPoints, borders, radius, bounds) {var backgroundClip = getCSS(element, 'backgroundClip'),borderArgs = [];switch (backgroundClip) {case "content-box":case "padding-box":parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftInner, borderPoints.topRightInner, bounds.left + borders[3].width, bounds.top + borders[0].width);parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightInner, borderPoints.bottomRightInner, bounds.left + bounds.width - borders[1].width, bounds.top + borders[0].width);parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightInner, borderPoints.bottomLeftInner, bounds.left + bounds.width - borders[1].width, bounds.top + bounds.height - borders[2].width);parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftInner, borderPoints.topLeftInner, bounds.left + borders[3].width, bounds.top + bounds.height - borders[2].width);break;default:parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftOuter, borderPoints.topRightOuter, bounds.left, bounds.top);parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightOuter, borderPoints.bottomRightOuter, bounds.left + bounds.width, bounds.top);parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightOuter, borderPoints.bottomLeftOuter, bounds.left + bounds.width, bounds.top + bounds.height);parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftOuter, borderPoints.topLeftOuter, bounds.left, bounds.top + bounds.height);break;}return borderArgs;}function parseBorders(element, bounds, borders) {var x = bounds.left,y = bounds.top,width = bounds.width,height = bounds.height,borderSide,bx,by,bw,bh,borderArgs,// http://www.w3.org/TR/css3-background/#the-border-radiusborderRadius = getBorderRadiusData(element),borderPoints = calculateCurvePoints(bounds, borderRadius, borders),borderData = {clip: getBorderClip(element, borderPoints, borders, borderRadius, bounds),borders: []};for (borderSide = 0; borderSide < 4; borderSide++) {if (borders[borderSide].width > 0) {bx = x;by = y;bw = width;bh = height - (borders[2].width);switch (borderSide) {case 0:// top borderbh = borders[0].width;borderArgs = drawSide({c1: [bx, by],c2: [bx + bw, by],c3: [bx + bw - borders[1].width, by + bh],c4: [bx + borders[3].width, by + bh]}, borderRadius[0], borderRadius[1],borderPoints.topLeftOuter, borderPoints.topLeftInner, borderPoints.topRightOuter, borderPoints.topRightInner);break;case 1:// right borderbx = x + width - (borders[1].width);bw = borders[1].width;borderArgs = drawSide({c1: [bx + bw, by],c2: [bx + bw, by + bh + borders[2].width],c3: [bx, by + bh],c4: [bx, by + borders[0].width]}, borderRadius[1], borderRadius[2],borderPoints.topRightOuter, borderPoints.topRightInner, borderPoints.bottomRightOuter, borderPoints.bottomRightInner);break;case 2:// bottom borderby = (by + height) - (borders[2].width);bh = borders[2].width;borderArgs = drawSide({c1: [bx + bw, by + bh],c2: [bx, by + bh],c3: [bx + borders[3].width, by],c4: [bx + bw - borders[3].width, by]}, borderRadius[2], borderRadius[3],borderPoints.bottomRightOuter, borderPoints.bottomRightInner, borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner);break;case 3:// left borderbw = borders[3].width;borderArgs = drawSide({c1: [bx, by + bh + borders[2].width],c2: [bx, by],c3: [bx + bw, by + borders[0].width],c4: [bx + bw, by + bh]}, borderRadius[3], borderRadius[0],borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner, borderPoints.topLeftOuter, borderPoints.topLeftInner);break;}borderData.borders.push({args: borderArgs,color: borders[borderSide].color});}}return borderData;}function createShape(ctx, args) {var shape = ctx.drawShape();args.forEach(function (border, index) {shape[(index === 0) ? "moveTo" : border[0] + "To"].apply(null, border.slice(1));});return shape;}function renderBorders(ctx, borderArgs, color) {if (color !== "transparent") {ctx.setVariable("fillStyle", color);createShape(ctx, borderArgs);ctx.fill();numDraws += 1;}}function renderFormValue(el, bounds, stack) {var valueWrap = doc.createElement('valuewrap'),cssPropertyArray = ['lineHeight', 'textAlign', 'fontFamily', 'color', 'fontSize', 'paddingLeft', 'paddingTop', 'width', 'height', 'border', 'borderLeftWidth', 'borderTopWidth'],textValue,textNode;cssPropertyArray.forEach(function (property) {try {valueWrap.style[property] = getCSS(el, property);} catch (e) {// Older IE has issues with "border"Util.log("html2canvas: Parse: Exception caught in renderFormValue: " + e.message);}});valueWrap.style.borderColor = "black";valueWrap.style.borderStyle = "solid";valueWrap.style.display = "block";valueWrap.style.position = "absolute";if (/^(submit|reset|button|text|password)$/.test(el.type) || el.nodeName === "SELECT") {valueWrap.style.lineHeight = getCSS(el, "height");}valueWrap.style.top = bounds.top + "px";valueWrap.style.left = bounds.left + "px";textValue = (el.nodeName === "SELECT") ? (el.options[el.selectedIndex] || 0).text : el.value;if (!textValue) {textValue = el.placeholder;}textNode = doc.createTextNode(textValue);valueWrap.appendChild(textNode);body.appendChild(valueWrap);renderText(el, textNode, stack);body.removeChild(valueWrap);}function drawImage(ctx) {ctx.drawImage.apply(ctx, Array.prototype.slice.call(arguments, 1));numDraws += 1;}function getPseudoElement(el, which) {var elStyle = window.getComputedStyle(el, which);if (!elStyle || !elStyle.content || elStyle.content === "none" || elStyle.content === "-moz-alt-content" || elStyle.display === "none") {return;}var content = elStyle.content + '',first = content.substr(0, 1);//strips quotesif (first === content.substr(content.length - 1) && first.match(/'|"/)) {content = content.substr(1, content.length - 2);}var isImage = content.substr(0, 3) === 'url',elps = document.createElement(isImage ? 'img' : 'span');elps.className = pseudoHide + "-before " + pseudoHide + "-after";Object.keys(elStyle).filter(indexedProperty).forEach(function (prop) {// Prevent assigning of read only CSS Rules, ex. length, parentRuletry {elps.style[prop] = elStyle[prop];} catch (e) {Util.log(['Tried to assign readonly property ', prop, 'Error:', e]);}});if (isImage) {elps.src = Util.parseBackgroundImage(content)[0].args[0];} else {elps.innerHTML = content;}return elps;}function indexedProperty(property) {return (isNaN(window.parseInt(property, 10)));}function injectPseudoElements(el, stack) {var before = getPseudoElement(el, ':before'),after = getPseudoElement(el, ':after');if (!before && !after) {return;}if (before) {el.className += " " + pseudoHide + "-before";el.parentNode.insertBefore(before, el);parseElement(before, stack, true);el.parentNode.removeChild(before);el.className = el.className.replace(pseudoHide + "-before", "").trim();}if (after) {el.className += " " + pseudoHide + "-after";el.appendChild(after);parseElement(after, stack, true);el.removeChild(after);el.className = el.className.replace(pseudoHide + "-after", "").trim();}}function renderBackgroundRepeat(ctx, image, backgroundPosition, bounds) {var offsetX = Math.round(bounds.left + backgroundPosition.left),offsetY = Math.round(bounds.top + backgroundPosition.top);ctx.createPattern(image);ctx.translate(offsetX, offsetY);ctx.fill();ctx.translate(-offsetX, -offsetY);}function backgroundRepeatShape(ctx, image, backgroundPosition, bounds, left, top, width, height) {var args = [];args.push(["line", Math.round(left), Math.round(top)]);args.push(["line", Math.round(left + width), Math.round(top)]);args.push(["line", Math.round(left + width), Math.round(height + top)]);args.push(["line", Math.round(left), Math.round(height + top)]);createShape(ctx, args);ctx.save();ctx.clip();renderBackgroundRepeat(ctx, image, backgroundPosition, bounds);ctx.restore();}function renderBackgroundColor(ctx, backgroundBounds, bgcolor) {renderRect(ctx,backgroundBounds.left,backgroundBounds.top,backgroundBounds.width,backgroundBounds.height,bgcolor);}function renderBackgroundRepeating(el, bounds, ctx, image, imageIndex) {var backgroundSize = Util.BackgroundSize(el, bounds, image, imageIndex),backgroundPosition = Util.BackgroundPosition(el, bounds, image, imageIndex, backgroundSize),backgroundRepeat = getCSS(el, "backgroundRepeat").split(",").map(Util.trimText);image = resizeImage(image, backgroundSize);backgroundRepeat = backgroundRepeat[imageIndex] || backgroundRepeat[0];switch (backgroundRepeat) {case "repeat-x":backgroundRepeatShape(ctx, image, backgroundPosition, bounds,bounds.left, bounds.top + backgroundPosition.top, 99999, image.height);break;case "repeat-y":backgroundRepeatShape(ctx, image, backgroundPosition, bounds,bounds.left + backgroundPosition.left, bounds.top, image.width, 99999);break;case "no-repeat":backgroundRepeatShape(ctx, image, backgroundPosition, bounds,bounds.left + backgroundPosition.left, bounds.top + backgroundPosition.top, image.width, image.height);break;default:renderBackgroundRepeat(ctx, image, backgroundPosition, {top: bounds.top,left: bounds.left,width: image.width,height: image.height});break;}}function renderBackgroundImage(element, bounds, ctx) {var backgroundImage = getCSS(element, "backgroundImage"),backgroundImages = Util.parseBackgroundImage(backgroundImage),image,imageIndex = backgroundImages.length;while (imageIndex--) {backgroundImage = backgroundImages[imageIndex];if (!backgroundImage.args || backgroundImage.args.length === 0) {continue;}var key = backgroundImage.method === 'url' ?backgroundImage.args[0] :backgroundImage.value;image = loadImage(key);// TODO add support for background-originif (image) {renderBackgroundRepeating(element, bounds, ctx, image, imageIndex);} else {Util.log("html2canvas: Error loading background:", backgroundImage);}}}function resizeImage(image, bounds) {if (image.width === bounds.width && image.height === bounds.height) {return image;}var ctx, canvas = doc.createElement('canvas');canvas.width = bounds.width;canvas.height = bounds.height;ctx = canvas.getContext("2d");drawImage(ctx, image, 0, 0, image.width, image.height, 0, 0, bounds.width, bounds.height);return canvas;}function setOpacity(ctx, element, parentStack) {return ctx.setVariable("globalAlpha", getCSS(element, "opacity") * ((parentStack) ? parentStack.opacity : 1));}function removePx(str) {return str.replace("px", "");}var transformRegExp = /(matrix)\((.+)\)/;function getTransform(element, parentStack) {var transform = getCSS(element, "transform") || getCSS(element, "-webkit-transform") || getCSS(element, "-moz-transform") || getCSS(element, "-ms-transform") || getCSS(element, "-o-transform");var transformOrigin = getCSS(element, "transform-origin") || getCSS(element, "-webkit-transform-origin") || getCSS(element, "-moz-transform-origin") || getCSS(element, "-ms-transform-origin") || getCSS(element, "-o-transform-origin") || "0px 0px";transformOrigin = transformOrigin.split(" ").map(removePx).map(Util.asFloat);var matrix;if (transform && transform !== "none") {var match = transform.match(transformRegExp);if (match) {switch (match[1]) {case "matrix":matrix = match[2].split(",").map(Util.trimText).map(Util.asFloat);break;}}}return {origin: transformOrigin,matrix: matrix};}function createStack(element, parentStack, bounds, transform) {var ctx = h2cRenderContext((!parentStack) ? documentWidth() : bounds.width, (!parentStack) ? documentHeight() : bounds.height),stack = {ctx: ctx,opacity: setOpacity(ctx, element, parentStack),cssPosition: getCSS(element, "position"),borders: getBorderData(element),transform: transform,clip: (parentStack && parentStack.clip) ? Util.Extend({}, parentStack.clip) : null};setZ(element, stack, parentStack);// TODO correct overflow for absolute content residing under a static positionif (options.useOverflow === true && /(hidden|scroll|auto)/.test(getCSS(element, "overflow")) === true && /(BODY)/i.test(element.nodeName) === false) {stack.clip = (stack.clip) ? clipBounds(stack.clip, bounds) : bounds;}return stack;}function getBackgroundBounds(borders, bounds, clip) {var backgroundBounds = {left: bounds.left + borders[3].width,top: bounds.top + borders[0].width,width: bounds.width - (borders[1].width + borders[3].width),height: bounds.height - (borders[0].width + borders[2].width)};if (clip) {backgroundBounds = clipBounds(backgroundBounds, clip);}return backgroundBounds;}function getBounds(element, transform) {var bounds = (transform.matrix) ? Util.OffsetBounds(element) : Util.Bounds(element);transform.origin[0] += bounds.left;transform.origin[1] += bounds.top;return bounds;}function renderElement(element, parentStack, pseudoElement, ignoreBackground) {var transform = getTransform(element, parentStack),bounds = getBounds(element, transform),image,stack = createStack(element, parentStack, bounds, transform),borders = stack.borders,ctx = stack.ctx,backgroundBounds = getBackgroundBounds(borders, bounds, stack.clip),borderData = parseBorders(element, bounds, borders),backgroundColor = (ignoreElementsRegExp.test(element.nodeName)) ? "#efefef" : getCSS(element, "backgroundColor");createShape(ctx, borderData.clip);ctx.save();ctx.clip();if (backgroundBounds.height > 0 && backgroundBounds.width > 0 && !ignoreBackground) {renderBackgroundColor(ctx, bounds, backgroundColor);renderBackgroundImage(element, backgroundBounds, ctx);} else if (ignoreBackground) {stack.backgroundColor = backgroundColor;}ctx.restore();borderData.borders.forEach(function (border) {renderBorders(ctx, border.args, border.color);});if (!pseudoElement) {injectPseudoElements(element, stack);}switch (element.nodeName) {case "IMG":if ((image = loadImage(element.getAttribute('src')))) {renderImage(ctx, element, image, bounds, borders);} else {Util.log("html2canvas: Error loading <img>:" + element.getAttribute('src'));}break;case "INPUT":// TODO add all relevant type's, i.e. HTML5 new stuff// todo add support for placeholder attribute for browsers which support itif (/^(text|url|email|submit|button|reset)$/.test(element.type) && (element.value || element.placeholder || "").length > 0) {renderFormValue(element, bounds, stack);}break;case "TEXTAREA":if ((element.value || element.placeholder || "").length > 0) {renderFormValue(element, bounds, stack);}break;case "SELECT":if ((element.options || element.placeholder || "").length > 0) {renderFormValue(element, bounds, stack);}break;case "LI":renderListItem(element, stack, backgroundBounds);break;case "CANVAS":renderImage(ctx, element, element, bounds, borders);break;}return stack;}function isElementVisible(element) {return (getCSS(element, 'display') !== "none" && getCSS(element, 'visibility') !== "hidden" && !element.hasAttribute("data-html2canvas-ignore"));}function parseElement(element, stack, pseudoElement) {if (isElementVisible(element)) {stack = renderElement(element, stack, pseudoElement, false) || stack;if (!ignoreElementsRegExp.test(element.nodeName)) {parseChildren(element, stack, pseudoElement);}}}function parseChildren(element, stack, pseudoElement) {Util.Children(element).forEach(function (node) {if (node.nodeType === node.ELEMENT_NODE) {parseElement(node, stack, pseudoElement);} else if (node.nodeType === node.TEXT_NODE) {renderText(element, node, stack);}});}function init() {var background = getCSS(document.documentElement, "backgroundColor"),transparentBackground = (Util.isTransparent(background) && element === document.body),stack = renderElement(element, null, false, transparentBackground);parseChildren(element, stack);if (transparentBackground) {background = stack.backgroundColor;}body.removeChild(hidePseudoElements);return {backgroundColor: background,stack: stack};}return init();};function h2czContext(zindex) {return {zindex: zindex,children: []};}_html2canvas.Preload = function (options) {var images = {numLoaded: 0,   // also failed are counted herenumFailed: 0,numTotal: 0,cleanupDone: false},pageOrigin,Util = _html2canvas.Util,methods,i,count = 0,element = options.elements[0] || document.body,doc = element.ownerDocument,domImages = element.getElementsByTagName('img'), // Fetch images of the present element onlyimgLen = domImages.length,link = doc.createElement("a"),supportCORS = (function (img) {return (img.crossOrigin !== undefined);})(new Image()),timeoutTimer;link.href = window.location.href;pageOrigin = link.protocol + link.host;function isSameOrigin(url) {link.href = url;link.href = link.href; // YES, BELIEVE IT OR NOT, that is required for IE9 - http://jsfiddle.net/niklasvh/2e48b/var origin = link.protocol + link.host;return (origin === pageOrigin);}function start() {Util.log("html2canvas: start: images: " + images.numLoaded + " / " + images.numTotal + " (failed: " + images.numFailed + ")");if (!images.firstRun && images.numLoaded >= images.numTotal) {Util.log("Finished loading images: # " + images.numTotal + " (failed: " + images.numFailed + ")");if (typeof options.complete === "function") {options.complete(images);}}}// TODO modify proxy to serve images with CORS enabled, where availablefunction proxyGetImage(url, img, imageObj) {var callback_name,scriptUrl = options.proxy,script;link.href = url;url = link.href; // work around for pages with base href="" set - WARNING: this may change the urlcallback_name = 'html2canvas_' + (count++);imageObj.callbackname = callback_name;if (scriptUrl.indexOf("?") > -1) {scriptUrl += "&";} else {scriptUrl += "?";}scriptUrl += 'url=' + encodeURIComponent(url) + '&callback=' + callback_name;script = doc.createElement("script");window[callback_name] = function (a) {if (a.substring(0, 6) === "error:") {imageObj.succeeded = false;images.numLoaded++;images.numFailed++;start();} else {setImageLoadHandlers(img, imageObj);img.src = a;}window[callback_name] = undefined; // to work with IE<9  // NOTE: that the undefined callback property-name still exists on the window object (for IE<9)try {delete window[callback_name];  // for all browser that support this} catch (ex) { }script.parentNode.removeChild(script);script = null;delete imageObj.script;delete imageObj.callbackname;};script.setAttribute("type", "text/javascript");script.setAttribute("src", scriptUrl);imageObj.script = script;window.document.body.appendChild(script);}function loadPseudoElement(element, type) {var style = window.getComputedStyle(element, type),content = style.content;if (content.substr(0, 3) === 'url') {methods.loadImage(_html2canvas.Util.parseBackgroundImage(content)[0].args[0]);}loadBackgroundImages(style.backgroundImage, element);}function loadPseudoElementImages(element) {loadPseudoElement(element, ":before");loadPseudoElement(element, ":after");}function loadGradientImage(backgroundImage, bounds) {var img = _html2canvas.Generate.Gradient(backgroundImage, bounds);if (img !== undefined) {images[backgroundImage] = {img: img,succeeded: true};images.numTotal++;images.numLoaded++;start();}}function invalidBackgrounds(background_image) {return (background_image && background_image.method && background_image.args && background_image.args.length > 0);}function loadBackgroundImages(background_image, el) {var bounds;_html2canvas.Util.parseBackgroundImage(background_image).filter(invalidBackgrounds).forEach(function (background_image) {if (background_image.method === 'url') {methods.loadImage(background_image.args[0]);} else if (background_image.method.match(/\-?gradient$/)) {if (bounds === undefined) {bounds = _html2canvas.Util.Bounds(el);}loadGradientImage(background_image.value, bounds);}});}function getImages(el) {var elNodeType = false;// Firefox fails with permission denied on pages with iframestry {Util.Children(el).forEach(getImages);}catch (e) { }try {elNodeType = el.nodeType;} catch (ex) {elNodeType = false;Util.log("html2canvas: failed to access some element's nodeType - Exception: " + ex.message);}if (elNodeType === 1 || elNodeType === undefined) {loadPseudoElementImages(el);try {loadBackgroundImages(Util.getCSS(el, 'backgroundImage'), el);} catch (e) {Util.log("html2canvas: failed to get background-image - Exception: " + e.message);}loadBackgroundImages(el);}}function setImageLoadHandlers(img, imageObj) {img.onload = function () {if (imageObj.timer !== undefined) {// CORS succeededwindow.clearTimeout(imageObj.timer);}images.numLoaded++;imageObj.succeeded = true;img.onerror = img.onload = null;start();};img.onerror = function () {if (img.crossOrigin === "anonymous") {// CORS failedwindow.clearTimeout(imageObj.timer);// let's try with proxy insteadif (options.proxy) {var src = img.src;img = new Image();imageObj.img = img;img.src = src;proxyGetImage(img.src, img, imageObj);return;}}images.numLoaded++;images.numFailed++;imageObj.succeeded = false;img.onerror = img.onload = null;start();};}methods = {loadImage: function (src) {var img, imageObj;if (src && images[src] === undefined) {img = new Image();if (src.match(/data:image\/.*;base64,/i)) {img.src = src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, '');imageObj = images[src] = {img: img};images.numTotal++;setImageLoadHandlers(img, imageObj);} else if (isSameOrigin(src) || options.allowTaint === true) {imageObj = images[src] = {img: img};images.numTotal++;setImageLoadHandlers(img, imageObj);img.src = src;} else if (supportCORS && !options.allowTaint && options.useCORS) {// attempt to load with CORSimg.crossOrigin = "anonymous";imageObj = images[src] = {img: img};images.numTotal++;setImageLoadHandlers(img, imageObj);img.src = src;} else if (options.proxy) {imageObj = images[src] = {img: img};images.numTotal++;proxyGetImage(src, img, imageObj);}}},cleanupDOM: function (cause) {var img, src;if (!images.cleanupDone) {if (cause && typeof cause === "string") {Util.log("html2canvas: Cleanup because: " + cause);} else {Util.log("html2canvas: Cleanup after timeout: " + options.timeout + " ms.");}for (src in images) {if (images.hasOwnProperty(src)) {img = images[src];if (typeof img === "object" && img.callbackname && img.succeeded === undefined) {// cancel proxy image requestwindow[img.callbackname] = undefined; // to work with IE<9  // NOTE: that the undefined callback property-name still exists on the window object (for IE<9)try {delete window[img.callbackname];  // for all browser that support this} catch (ex) { }if (img.script && img.script.parentNode) {img.script.setAttribute("src", "about:blank");  // try to cancel running requestimg.script.parentNode.removeChild(img.script);}images.numLoaded++;images.numFailed++;Util.log("html2canvas: Cleaned up failed img: '" + src + "' Steps: " + images.numLoaded + " / " + images.numTotal);}}}// cancel any pending requestsif (window.stop !== undefined) {window.stop();} else if (document.execCommand !== undefined) {document.execCommand("Stop", false);}if (document.close !== undefined) {document.close();}images.cleanupDone = true;if (!(cause && typeof cause === "string")) {start();}}},renderingDone: function () {if (timeoutTimer) {window.clearTimeout(timeoutTimer);}}};if (options.timeout > 0) {timeoutTimer = window.setTimeout(methods.cleanupDOM, options.timeout);}Util.log('html2canvas: Preload starts: finding background-images');images.firstRun = true;getImages(element);Util.log('html2canvas: Preload: Finding images');// load <img> imagesfor (i = 0; i < imgLen; i += 1) {methods.loadImage(domImages[i].getAttribute("src"));}images.firstRun = false;Util.log('html2canvas: Preload: Done.');if (images.numTotal === images.numLoaded) {start();}return methods;};_html2canvas.Renderer = function (parseQueue, options) {// http://www.w3.org/TR/CSS21/zindex.htmlfunction createRenderQueue(parseQueue) {var queue = [],rootContext;rootContext = (function buildStackingContext(rootNode) {var rootContext = {};function insert(context, node, specialParent) {var zi = (node.zIndex.zindex === 'auto') ? 0 : Number(node.zIndex.zindex),contextForChildren = context, // the stacking context for childrenisPositioned = node.zIndex.isPositioned,isFloated = node.zIndex.isFloated,stub = { node: node },childrenDest = specialParent; // where children without z-index should be pushed intoif (node.zIndex.ownStacking) {// '!' comes before numbers in sorted arraycontextForChildren = stub.context = { '!': [{ node: node, children: [] }] };childrenDest = undefined;} else if (isPositioned || isFloated) {childrenDest = stub.children = [];}if (zi === 0 && specialParent) {specialParent.push(stub);} else {if (!context[zi]) { context[zi] = []; }context[zi].push(stub);}node.zIndex.children.forEach(function (childNode) {insert(contextForChildren, childNode, childrenDest);});}insert(rootContext, rootNode);return rootContext;})(parseQueue);function sortZ(context) {Object.keys(context).sort().forEach(function (zi) {var nonPositioned = [],floated = [],positioned = [],list = [];// positioned after staticcontext[zi].forEach(function (v) {if (v.node.zIndex.isPositioned || v.node.zIndex.opacity < 1) {// http://www.w3.org/TR/css3-color/#transparency// non-positioned element with opactiy < 1 should be stacked as if it were a positioned element with ‘z-index: 0’ and ‘opacity: 1’.positioned.push(v);} else if (v.node.zIndex.isFloated) {floated.push(v);} else {nonPositioned.push(v);}});(function walk(arr) {arr.forEach(function (v) {list.push(v);if (v.children) { walk(v.children); }});})(nonPositioned.concat(floated, positioned));list.forEach(function (v) {if (v.context) {sortZ(v.context);} else {queue.push(v.node);}});});}sortZ(rootContext);return queue;}function getRenderer(rendererName) {var renderer;if (typeof options.renderer === "string" && _html2canvas.Renderer[rendererName] !== undefined) {renderer = _html2canvas.Renderer[rendererName](options);} else if (typeof rendererName === "function") {renderer = rendererName(options);} else {throw new Error("Unknown renderer");}if (typeof renderer !== "function") {throw new Error("Invalid renderer defined");}return renderer;}return getRenderer(options.renderer)(parseQueue, options, document, createRenderQueue(parseQueue.stack), _html2canvas);};_html2canvas.Util.Support = function (options, doc) {function supportSVGRendering() {var img = new Image(),canvas = doc.createElement("canvas"),ctx = (canvas.getContext === undefined) ? false : canvas.getContext("2d");if (ctx === false) {return false;}canvas.width = canvas.height = 10;img.src = ["data:image/svg+xml,","<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10'>","<foreignObject width='10' height='10'>","<div xmlns='http://www.w3.org/1999/xhtml' style='width:10;height:10;'>","sup","</div>","</foreignObject>","</svg>"].join("");try {ctx.drawImage(img, 0, 0);canvas.toDataURL();} catch (e) {return false;}_html2canvas.Util.log('html2canvas: Parse: SVG powered rendering available');return true;}// Test whether we can use ranges to measure bounding boxes// Opera doesn't provide valid bounds.height/bottom even though it supports the method.function supportRangeBounds() {var r, testElement, rangeBounds, rangeHeight, support = false;if (doc.createRange) {r = doc.createRange();if (r.getBoundingClientRect) {testElement = doc.createElement('boundtest');testElement.style.height = "123px";testElement.style.display = "block";doc.body.appendChild(testElement);r.selectNode(testElement);rangeBounds = r.getBoundingClientRect();rangeHeight = rangeBounds.height;if (rangeHeight === 123) {support = true;}doc.body.removeChild(testElement);}}return support;}return {rangeBounds: supportRangeBounds(),svgRendering: options.svgRendering && supportSVGRendering()};};window.html2canvas = function (elements, opts) {elements = (elements.length) ? elements : [elements];var queue,canvas,options = {// generallogging: false,elements: elements,background: "#fff",// preload optionsproxy: null,timeout: 0,    // no timeoutuseCORS: false, // try to load images as CORS (where available), before falling back to proxyallowTaint: false, // whether to allow images to taint the canvas, won't need proxy if set to true// parse optionssvgRendering: false, // use svg powered rendering where available (FF11+)ignoreElements: "IFRAME|OBJECT|PARAM",useOverflow: true,letterRendering: false,chinese: false,// render optionswidth: null,height: null,taintTest: true, // do a taint test with all images before applying to canvasrenderer: "Canvas"};options = _html2canvas.Util.Extend(opts, options);_html2canvas.logging = options.logging;options.complete = function (images) {if (typeof options.onpreloaded === "function") {if (options.onpreloaded(images) === false) {return;}}queue = _html2canvas.Parse(images, options);if (typeof options.onparsed === "function") {if (options.onparsed(queue) === false) {return;}}canvas = _html2canvas.Renderer(queue, options);if (typeof options.onrendered === "function") {options.onrendered(canvas);}};// for pages without images, we still want this to be async, i.e. return methods before executingwindow.setTimeout(function () {_html2canvas.Preload(options);}, 0);return {render: function (queue, opts) {return _html2canvas.Renderer(queue, _html2canvas.Util.Extend(opts, options));},parse: function (images, opts) {return _html2canvas.Parse(images, _html2canvas.Util.Extend(opts, options));},preload: function (opts) {return _html2canvas.Preload(_html2canvas.Util.Extend(opts, options));},log: _html2canvas.Util.log};};window.html2canvas.log = _html2canvas.Util.log; // for rendererswindow.html2canvas.Renderer = {Canvas: undefined // We are assuming this will be used};_html2canvas.Renderer.Canvas = function (options) {options = options || {};var doc = document,safeImages = [],testCanvas = document.createElement("canvas"),testctx = testCanvas.getContext("2d"),Util = _html2canvas.Util,canvas = options.canvas || doc.createElement('canvas');function createShape(ctx, args) {ctx.beginPath();args.forEach(function (arg) {ctx[arg.name].apply(ctx, arg['arguments']);});ctx.closePath();}function safeImage(item) {if (safeImages.indexOf(item['arguments'][0].src) === -1) {testctx.drawImage(item['arguments'][0], 0, 0);try {testctx.getImageData(0, 0, 1, 1);} catch (e) {testCanvas = doc.createElement("canvas");testctx = testCanvas.getContext("2d");return false;}safeImages.push(item['arguments'][0].src);}return true;}function renderItem(ctx, item) {switch (item.type) {case "variable":ctx[item.name] = item['arguments'];break;case "function":switch (item.name) {case "createPattern":if (item['arguments'][0].width > 0 && item['arguments'][0].height > 0) {try {ctx.fillStyle = ctx.createPattern(item['arguments'][0], "repeat");}catch (e) {Util.log("html2canvas: Renderer: Error creating pattern", e.message);}}break;case "drawShape":createShape(ctx, item['arguments']);break;case "drawImage":if (item['arguments'][8] > 0 && item['arguments'][7] > 0) {if (!options.taintTest || (options.taintTest && safeImage(item))) {ctx.drawImage.apply(ctx, item['arguments']);}}break;default:ctx[item.name].apply(ctx, item['arguments']);}break;}}return function (parsedData, options, document, queue, _html2canvas) {var ctx = canvas.getContext("2d"),newCanvas,bounds,fstyle,zStack = parsedData.stack;canvas.width = canvas.style.width = options.width || zStack.ctx.width;canvas.height = canvas.style.height = options.height || zStack.ctx.height;fstyle = ctx.fillStyle;ctx.fillStyle = (Util.isTransparent(zStack.backgroundColor) && options.background !== undefined) ? options.background : parsedData.backgroundColor;ctx.fillRect(0, 0, canvas.width, canvas.height);ctx.fillStyle = fstyle;queue.forEach(function (storageContext) {// set common settings for canvasctx.textBaseline = "bottom";ctx.save();if (storageContext.transform.matrix) {ctx.translate(storageContext.transform.origin[0], storageContext.transform.origin[1]);ctx.transform.apply(ctx, storageContext.transform.matrix);ctx.translate(-storageContext.transform.origin[0], -storageContext.transform.origin[1]);}if (storageContext.clip) {ctx.beginPath();ctx.rect(storageContext.clip.left, storageContext.clip.top, storageContext.clip.width, storageContext.clip.height);ctx.clip();}if (storageContext.ctx.storage) {storageContext.ctx.storage.forEach(function (item) {renderItem(ctx, item);});}ctx.restore();});Util.log("html2canvas: Renderer: Canvas renderer done - returning canvas obj");if (options.elements.length === 1) {if (typeof options.elements[0] === "object" && options.elements[0].nodeName !== "BODY") {// crop image to the bounds of selected (single) elementbounds = _html2canvas.Util.Bounds(options.elements[0]);newCanvas = document.createElement('canvas');newCanvas.width = Math.ceil(bounds.width);newCanvas.height = Math.ceil(bounds.height);ctx = newCanvas.getContext("2d");ctx.drawImage(canvas, bounds.left, bounds.top, bounds.width, bounds.height, 0, 0, bounds.width, bounds.height);canvas = null;return newCanvas;}}return canvas;};};
})(window, document);

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