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html2canvas - custom build of 0.5.0-beta2

I modified some stuff to fit in to my script, use official version instead.

此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.gf.qytechs.cn/scripts/13980/87728/html2canvas%20-%20custom%20build%20of%20050-beta2.js 

  1. /*
  2.   html2canvas 0.5.0-beta2 <http://html2canvas.hertzen.com>
  3.   Copyright (c) 2015 Niklas von Hertzen
  4.  
  5.   Released under MIT License
  6.  
  7.   Custom build by Jixun.Moe; for code changes please see:
  8. 	https://github.com/JixunMoe/html2canvas
  9. */
  10.  
  11. (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.html2canvas = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
  12. (function (global){
  13. /*! https://mths.be/punycode v1.3.2 by @mathias */
  14. ;(function(root) {
  15.  
  16. 	/** Detect free variables */
  17. 	var freeExports = typeof exports == 'object' && exports &&
  18. 		!exports.nodeType && exports;
  19. 	var freeModule = typeof module == 'object' && module &&
  20. 		!module.nodeType && module;
  21. 	var freeGlobal = typeof global == 'object' && global;
  22. 	if (
  23. 		freeGlobal.global === freeGlobal ||
  24. 		freeGlobal.window === freeGlobal ||
  25. 		freeGlobal.self === freeGlobal
  26. 	) {
  27. 		root = freeGlobal;
  28. 	}
  29.  
  30. 	/**
  31. 	 * The `punycode` object.
  32. 	 * @name punycode
  33. 	 * @type Object
  34. 	 */
  35. 	var punycode,
  36.  
  37. 	/** Highest positive signed 32-bit float value */
  38. 	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1
  39.  
  40. 	/** Bootstring parameters */
  41. 	base = 36,
  42. 	tMin = 1,
  43. 	tMax = 26,
  44. 	skew = 38,
  45. 	damp = 700,
  46. 	initialBias = 72,
  47. 	initialN = 128, // 0x80
  48. 	delimiter = '-', // '\x2D'
  49.  
  50. 	/** Regular expressions */
  51. 	regexPunycode = /^xn--/,
  52. 	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
  53. 	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators
  54.  
  55. 	/** Error messages */
  56. 	errors = {
  57. 		'overflow': 'Overflow: input needs wider integers to process',
  58. 		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
  59. 		'invalid-input': 'Invalid input'
  60. 	},
  61.  
  62. 	/** Convenience shortcuts */
  63. 	baseMinusTMin = base - tMin,
  64. 	floor = Math.floor,
  65. 	stringFromCharCode = String.fromCharCode,
  66.  
  67. 	/** Temporary variable */
  68. 	key;
  69.  
  70. 	/*--------------------------------------------------------------------------*/
  71.  
  72. 	/**
  73. 	 * A generic error utility function.
  74. 	 * @private
  75. 	 * @param {String} type The error type.
  76. 	 * @returns {Error} Throws a `RangeError` with the applicable error message.
  77. 	 */
  78. 	function error(type) {
  79. 		throw RangeError(errors[type]);
  80. 	}
  81.  
  82. 	/**
  83. 	 * A generic `Array#map` utility function.
  84. 	 * @private
  85. 	 * @param {Array} array The array to iterate over.
  86. 	 * @param {Function} callback The function that gets called for every array
  87. 	 * item.
  88. 	 * @returns {Array} A new array of values returned by the callback function.
  89. 	 */
  90. 	function map(array, fn) {
  91. 		var length = array.length;
  92. 		var result = [];
  93. 		while (length--) {
  94. 			result[length] = fn(array[length]);
  95. 		}
  96. 		return result;
  97. 	}
  98.  
  99. 	/**
  100. 	 * A simple `Array#map`-like wrapper to work with domain name strings or email
  101. 	 * addresses.
  102. 	 * @private
  103. 	 * @param {String} domain The domain name or email address.
  104. 	 * @param {Function} callback The function that gets called for every
  105. 	 * character.
  106. 	 * @returns {Array} A new string of characters returned by the callback
  107. 	 * function.
  108. 	 */
  109. 	function mapDomain(string, fn) {
  110. 		var parts = string.split('@');
  111. 		var result = '';
  112. 		if (parts.length > 1) {
  113. 			// In email addresses, only the domain name should be punycoded. Leave
  114. 			// the local part (i.e. everything up to `@`) intact.
  115. 			result = parts[0] + '@';
  116. 			string = parts[1];
  117. 		}
  118. 		// Avoid `split(regex)` for IE8 compatibility. See #17.
  119. 		string = string.replace(regexSeparators, '\x2E');
  120. 		var labels = string.split('.');
  121. 		var encoded = map(labels, fn).join('.');
  122. 		return result + encoded;
  123. 	}
  124.  
  125. 	/**
  126. 	 * Creates an array containing the numeric code points of each Unicode
  127. 	 * character in the string. While JavaScript uses UCS-2 internally,
  128. 	 * this function will convert a pair of surrogate halves (each of which
  129. 	 * UCS-2 exposes as separate characters) into a single code point,
  130. 	 * matching UTF-16.
  131. 	 * @see `punycode.ucs2.encode`
  132. 	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
  133. 	 * @memberOf punycode.ucs2
  134. 	 * @name decode
  135. 	 * @param {String} string The Unicode input string (UCS-2).
  136. 	 * @returns {Array} The new array of code points.
  137. 	 */
  138. 	function ucs2decode(string) {
  139. 		var output = [],
  140. 		    counter = 0,
  141. 		    length = string.length,
  142. 		    value,
  143. 		    extra;
  144. 		while (counter < length) {
  145. 			value = string.charCodeAt(counter++);
  146. 			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
  147. 				// high surrogate, and there is a next character
  148. 				extra = string.charCodeAt(counter++);
  149. 				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
  150. 					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
  151. 				} else {
  152. 					// unmatched surrogate; only append this code unit, in case the next
  153. 					// code unit is the high surrogate of a surrogate pair
  154. 					output.push(value);
  155. 					counter--;
  156. 				}
  157. 			} else {
  158. 				output.push(value);
  159. 			}
  160. 		}
  161. 		return output;
  162. 	}
  163.  
  164. 	/**
  165. 	 * Creates a string based on an array of numeric code points.
  166. 	 * @see `punycode.ucs2.decode`
  167. 	 * @memberOf punycode.ucs2
  168. 	 * @name encode
  169. 	 * @param {Array} codePoints The array of numeric code points.
  170. 	 * @returns {String} The new Unicode string (UCS-2).
  171. 	 */
  172. 	function ucs2encode(array) {
  173. 		return map(array, function(value) {
  174. 			var output = '';
  175. 			if (value > 0xFFFF) {
  176. 				value -= 0x10000;
  177. 				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
  178. 				value = 0xDC00 | value & 0x3FF;
  179. 			}
  180. 			output += stringFromCharCode(value);
  181. 			return output;
  182. 		}).join('');
  183. 	}
  184.  
  185. 	/**
  186. 	 * Converts a basic code point into a digit/integer.
  187. 	 * @see `digitToBasic()`
  188. 	 * @private
  189. 	 * @param {Number} codePoint The basic numeric code point value.
  190. 	 * @returns {Number} The numeric value of a basic code point (for use in
  191. 	 * representing integers) in the range `0` to `base - 1`, or `base` if
  192. 	 * the code point does not represent a value.
  193. 	 */
  194. 	function basicToDigit(codePoint) {
  195. 		if (codePoint - 48 < 10) {
  196. 			return codePoint - 22;
  197. 		}
  198. 		if (codePoint - 65 < 26) {
  199. 			return codePoint - 65;
  200. 		}
  201. 		if (codePoint - 97 < 26) {
  202. 			return codePoint - 97;
  203. 		}
  204. 		return base;
  205. 	}
  206.  
  207. 	/**
  208. 	 * Converts a digit/integer into a basic code point.
  209. 	 * @see `basicToDigit()`
  210. 	 * @private
  211. 	 * @param {Number} digit The numeric value of a basic code point.
  212. 	 * @returns {Number} The basic code point whose value (when used for
  213. 	 * representing integers) is `digit`, which needs to be in the range
  214. 	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
  215. 	 * used; else, the lowercase form is used. The behavior is undefined
  216. 	 * if `flag` is non-zero and `digit` has no uppercase form.
  217. 	 */
  218. 	function digitToBasic(digit, flag) {
  219. 		//  0..25 map to ASCII a..z or A..Z
  220. 		// 26..35 map to ASCII 0..9
  221. 		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
  222. 	}
  223.  
  224. 	/**
  225. 	 * Bias adaptation function as per section 3.4 of RFC 3492.
  226. 	 * http://tools.ietf.org/html/rfc3492#section-3.4
  227. 	 * @private
  228. 	 */
  229. 	function adapt(delta, numPoints, firstTime) {
  230. 		var k = 0;
  231. 		delta = firstTime ? floor(delta / damp) : delta >> 1;
  232. 		delta += floor(delta / numPoints);
  233. 		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
  234. 			delta = floor(delta / baseMinusTMin);
  235. 		}
  236. 		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
  237. 	}
  238.  
  239. 	/**
  240. 	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
  241. 	 * symbols.
  242. 	 * @memberOf punycode
  243. 	 * @param {String} input The Punycode string of ASCII-only symbols.
  244. 	 * @returns {String} The resulting string of Unicode symbols.
  245. 	 */
  246. 	function decode(input) {
  247. 		// Don't use UCS-2
  248. 		var output = [],
  249. 		    inputLength = input.length,
  250. 		    out,
  251. 		    i = 0,
  252. 		    n = initialN,
  253. 		    bias = initialBias,
  254. 		    basic,
  255. 		    j,
  256. 		    index,
  257. 		    oldi,
  258. 		    w,
  259. 		    k,
  260. 		    digit,
  261. 		    t,
  262. 		    /** Cached calculation results */
  263. 		    baseMinusT;
  264.  
  265. 		// Handle the basic code points: let `basic` be the number of input code
  266. 		// points before the last delimiter, or `0` if there is none, then copy
  267. 		// the first basic code points to the output.
  268.  
  269. 		basic = input.lastIndexOf(delimiter);
  270. 		if (basic < 0) {
  271. 			basic = 0;
  272. 		}
  273.  
  274. 		for (j = 0; j < basic; ++j) {
  275. 			// if it's not a basic code point
  276. 			if (input.charCodeAt(j) >= 0x80) {
  277. 				error('not-basic');
  278. 			}
  279. 			output.push(input.charCodeAt(j));
  280. 		}
  281.  
  282. 		// Main decoding loop: start just after the last delimiter if any basic code
  283. 		// points were copied; start at the beginning otherwise.
  284.  
  285. 		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
  286.  
  287. 			// `index` is the index of the next character to be consumed.
  288. 			// Decode a generalized variable-length integer into `delta`,
  289. 			// which gets added to `i`. The overflow checking is easier
  290. 			// if we increase `i` as we go, then subtract off its starting
  291. 			// value at the end to obtain `delta`.
  292. 			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {
  293.  
  294. 				if (index >= inputLength) {
  295. 					error('invalid-input');
  296. 				}
  297.  
  298. 				digit = basicToDigit(input.charCodeAt(index++));
  299.  
  300. 				if (digit >= base || digit > floor((maxInt - i) / w)) {
  301. 					error('overflow');
  302. 				}
  303.  
  304. 				i += digit * w;
  305. 				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
  306.  
  307. 				if (digit < t) {
  308. 					break;
  309. 				}
  310.  
  311. 				baseMinusT = base - t;
  312. 				if (w > floor(maxInt / baseMinusT)) {
  313. 					error('overflow');
  314. 				}
  315.  
  316. 				w *= baseMinusT;
  317.  
  318. 			}
  319.  
  320. 			out = output.length + 1;
  321. 			bias = adapt(i - oldi, out, oldi == 0);
  322.  
  323. 			// `i` was supposed to wrap around from `out` to `0`,
  324. 			// incrementing `n` each time, so we'll fix that now:
  325. 			if (floor(i / out) > maxInt - n) {
  326. 				error('overflow');
  327. 			}
  328.  
  329. 			n += floor(i / out);
  330. 			i %= out;
  331.  
  332. 			// Insert `n` at position `i` of the output
  333. 			output.splice(i++, 0, n);
  334.  
  335. 		}
  336.  
  337. 		return ucs2encode(output);
  338. 	}
  339.  
  340. 	/**
  341. 	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
  342. 	 * Punycode string of ASCII-only symbols.
  343. 	 * @memberOf punycode
  344. 	 * @param {String} input The string of Unicode symbols.
  345. 	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
  346. 	 */
  347. 	function encode(input) {
  348. 		var n,
  349. 		    delta,
  350. 		    handledCPCount,
  351. 		    basicLength,
  352. 		    bias,
  353. 		    j,
  354. 		    m,
  355. 		    q,
  356. 		    k,
  357. 		    t,
  358. 		    currentValue,
  359. 		    output = [],
  360. 		    /** `inputLength` will hold the number of code points in `input`. */
  361. 		    inputLength,
  362. 		    /** Cached calculation results */
  363. 		    handledCPCountPlusOne,
  364. 		    baseMinusT,
  365. 		    qMinusT;
  366.  
  367. 		// Convert the input in UCS-2 to Unicode
  368. 		input = ucs2decode(input);
  369.  
  370. 		// Cache the length
  371. 		inputLength = input.length;
  372.  
  373. 		// Initialize the state
  374. 		n = initialN;
  375. 		delta = 0;
  376. 		bias = initialBias;
  377.  
  378. 		// Handle the basic code points
  379. 		for (j = 0; j < inputLength; ++j) {
  380. 			currentValue = input[j];
  381. 			if (currentValue < 0x80) {
  382. 				output.push(stringFromCharCode(currentValue));
  383. 			}
  384. 		}
  385.  
  386. 		handledCPCount = basicLength = output.length;
  387.  
  388. 		// `handledCPCount` is the number of code points that have been handled;
  389. 		// `basicLength` is the number of basic code points.
  390.  
  391. 		// Finish the basic string - if it is not empty - with a delimiter
  392. 		if (basicLength) {
  393. 			output.push(delimiter);
  394. 		}
  395.  
  396. 		// Main encoding loop:
  397. 		while (handledCPCount < inputLength) {
  398.  
  399. 			// All non-basic code points < n have been handled already. Find the next
  400. 			// larger one:
  401. 			for (m = maxInt, j = 0; j < inputLength; ++j) {
  402. 				currentValue = input[j];
  403. 				if (currentValue >= n && currentValue < m) {
  404. 					m = currentValue;
  405. 				}
  406. 			}
  407.  
  408. 			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
  409. 			// but guard against overflow
  410. 			handledCPCountPlusOne = handledCPCount + 1;
  411. 			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
  412. 				error('overflow');
  413. 			}
  414.  
  415. 			delta += (m - n) * handledCPCountPlusOne;
  416. 			n = m;
  417.  
  418. 			for (j = 0; j < inputLength; ++j) {
  419. 				currentValue = input[j];
  420.  
  421. 				if (currentValue < n && ++delta > maxInt) {
  422. 					error('overflow');
  423. 				}
  424.  
  425. 				if (currentValue == n) {
  426. 					// Represent delta as a generalized variable-length integer
  427. 					for (q = delta, k = base; /* no condition */; k += base) {
  428. 						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
  429. 						if (q < t) {
  430. 							break;
  431. 						}
  432. 						qMinusT = q - t;
  433. 						baseMinusT = base - t;
  434. 						output.push(
  435. 							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
  436. 						);
  437. 						q = floor(qMinusT / baseMinusT);
  438. 					}
  439.  
  440. 					output.push(stringFromCharCode(digitToBasic(q, 0)));
  441. 					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
  442. 					delta = 0;
  443. 					++handledCPCount;
  444. 				}
  445. 			}
  446.  
  447. 			++delta;
  448. 			++n;
  449.  
  450. 		}
  451. 		return output.join('');
  452. 	}
  453.  
  454. 	/**
  455. 	 * Converts a Punycode string representing a domain name or an email address
  456. 	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
  457. 	 * it doesn't matter if you call it on a string that has already been
  458. 	 * converted to Unicode.
  459. 	 * @memberOf punycode
  460. 	 * @param {String} input The Punycoded domain name or email address to
  461. 	 * convert to Unicode.
  462. 	 * @returns {String} The Unicode representation of the given Punycode
  463. 	 * string.
  464. 	 */
  465. 	function toUnicode(input) {
  466. 		return mapDomain(input, function(string) {
  467. 			return regexPunycode.test(string)
  468. 				? decode(string.slice(4).toLowerCase())
  469. 				: string;
  470. 		});
  471. 	}
  472.  
  473. 	/**
  474. 	 * Converts a Unicode string representing a domain name or an email address to
  475. 	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
  476. 	 * i.e. it doesn't matter if you call it with a domain that's already in
  477. 	 * ASCII.
  478. 	 * @memberOf punycode
  479. 	 * @param {String} input The domain name or email address to convert, as a
  480. 	 * Unicode string.
  481. 	 * @returns {String} The Punycode representation of the given domain name or
  482. 	 * email address.
  483. 	 */
  484. 	function toASCII(input) {
  485. 		return mapDomain(input, function(string) {
  486. 			return regexNonASCII.test(string)
  487. 				? 'xn--' + encode(string)
  488. 				: string;
  489. 		});
  490. 	}
  491.  
  492. 	/*--------------------------------------------------------------------------*/
  493.  
  494. 	/** Define the public API */
  495. 	punycode = {
  496. 		/**
  497. 		 * A string representing the current Punycode.js version number.
  498. 		 * @memberOf punycode
  499. 		 * @type String
  500. 		 */
  501. 		'version': '1.3.2',
  502. 		/**
  503. 		 * An object of methods to convert from JavaScript's internal character
  504. 		 * representation (UCS-2) to Unicode code points, and back.
  505. 		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
  506. 		 * @memberOf punycode
  507. 		 * @type Object
  508. 		 */
  509. 		'ucs2': {
  510. 			'decode': ucs2decode,
  511. 			'encode': ucs2encode
  512. 		},
  513. 		'decode': decode,
  514. 		'encode': encode,
  515. 		'toASCII': toASCII,
  516. 		'toUnicode': toUnicode
  517. 	};
  518.  
  519. 	/** Expose `punycode` */
  520. 	// Some AMD build optimizers, like r.js, check for specific condition patterns
  521. 	// like the following:
  522. 	if (
  523. 		typeof define == 'function' &&
  524. 		typeof define.amd == 'object' &&
  525. 		define.amd
  526. 	) {
  527. 		define('punycode', function() {
  528. 			return punycode;
  529. 		});
  530. 	} else if (freeExports && freeModule) {
  531. 		if (module.exports == freeExports) { // in Node.js or RingoJS v0.8.0+
  532. 			freeModule.exports = punycode;
  533. 		} else { // in Narwhal or RingoJS v0.7.0-
  534. 			for (key in punycode) {
  535. 				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
  536. 			}
  537. 		}
  538. 	} else { // in Rhino or a web browser
  539. 		root.punycode = punycode;
  540. 	}
  541.  
  542. }(this));
  543.  
  544. }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  545. },{}],2:[function(require,module,exports){
  546. var log = require('./log');
  547.  
  548. function restoreOwnerScroll(ownerDocument, x, y) {
  549.     if (ownerDocument.defaultView && (x !== ownerDocument.defaultView.pageXOffset || y !== ownerDocument.defaultView.pageYOffset)) {
  550.         ownerDocument.defaultView.scrollTo(x, y);
  551.     }
  552. }
  553.  
  554. function cloneCanvasContents(canvas, clonedCanvas) {
  555.     try {
  556.         if (clonedCanvas) {
  557.             clonedCanvas.width = canvas.width;
  558.             clonedCanvas.height = canvas.height;
  559.             clonedCanvas.getContext("2d").putImageData(canvas.getContext("2d").getImageData(0, 0, canvas.width, canvas.height), 0, 0);
  560.         }
  561.     } catch(e) {
  562.         log("Unable to copy canvas content from", canvas, e);
  563.     }
  564. }
  565.  
  566. function cloneNode(node, javascriptEnabled) {
  567.     var clone = node.nodeType === 3 ? document.createTextNode(node.nodeValue) : node.cloneNode(false);
  568.  
  569.     var child = node.firstChild;
  570.     while(child) {
  571.         if (javascriptEnabled === true || child.nodeType !== 1 || child.nodeName !== 'SCRIPT') {
  572.             clone.appendChild(cloneNode(child, javascriptEnabled));
  573.         }
  574.         child = child.nextSibling;
  575.     }
  576.  
  577.     if (node.nodeType === 1) {
  578.         clone._scrollTop = node.scrollTop;
  579.         clone._scrollLeft = node.scrollLeft;
  580.         if (node.nodeName === "CANVAS") {
  581.             cloneCanvasContents(node, clone);
  582.         } else if (node.nodeName === "TEXTAREA" || node.nodeName === "SELECT") {
  583.             clone.value = node.value;
  584.         }
  585.     }
  586.  
  587.     return clone;
  588. }
  589.  
  590. function initNode(node) {
  591.     if (node.nodeType === 1) {
  592.         node.scrollTop = node._scrollTop;
  593.         node.scrollLeft = node._scrollLeft;
  594.  
  595.         var child = node.firstChild;
  596.         while(child) {
  597.             initNode(child);
  598.             child = child.nextSibling;
  599.         }
  600.     }
  601. }
  602.  
  603. module.exports = function(ownerDocument, containerDocument, width, height, options, x ,y) {
  604.     var documentElement = cloneNode(ownerDocument.documentElement, options.javascriptEnabled);
  605.     var container = containerDocument.createElement("iframe");
  606.  
  607.     container.className = "html2canvas-container";
  608.     container.style.visibility = "hidden";
  609.     container.style.position = "fixed";
  610.     container.style.left = "-10000px";
  611.     container.style.top = "0px";
  612.     container.style.border = "0";
  613.     container.width = width;
  614.     container.height = height;
  615.     container.scrolling = "no"; // ios won't scroll without it
  616.     containerDocument.body.appendChild(container);
  617.  
  618.     return new Promise(function(resolve) {
  619.         var documentClone = container.contentWindow.document;
  620.  
  621.         /* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
  622.          if window url is about:blank, we can assign the url to current by writing onto the document
  623.          */
  624.         container.contentWindow.onload = container.onload = function() {
  625.             var interval = setInterval(function() {
  626.                 if (documentClone.body.childNodes.length > 0) {
  627.                     initNode(documentClone.documentElement);
  628.                     clearInterval(interval);
  629.                     if (options.type === "view") {
  630.                         container.contentWindow.scrollTo(x, y);
  631.                         if ((/(iPad|iPhone|iPod)/g).test(navigator.userAgent) && (container.contentWindow.scrollY !== y || container.contentWindow.scrollX !== x)) {
  632.                             documentClone.documentElement.style.top = (-y) + "px";
  633.                             documentClone.documentElement.style.left = (-x) + "px";
  634.                             documentClone.documentElement.style.position = 'absolute';
  635.                         }
  636.                     }
  637.                     resolve(container);
  638.                 }
  639.             }, 50);
  640.         };
  641.  
  642.         documentClone.open();
  643.         documentClone.write("<!DOCTYPE html><html></html>");
  644.         // Chrome scrolls the parent document for some reason after the write to the cloned window???
  645.         restoreOwnerScroll(ownerDocument, x, y);
  646.         documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
  647.         documentClone.close();
  648.     });
  649. };
  650.  
  651. },{"./log":13}],3:[function(require,module,exports){
  652. // http://dev.w3.org/csswg/css-color/
  653.  
  654. function Color(value) {
  655.     this.r = 0;
  656.     this.g = 0;
  657.     this.b = 0;
  658.     this.a = null;
  659.     var result = this.fromArray(value) ||
  660.         this.namedColor(value) ||
  661.         this.rgb(value) ||
  662.         this.rgba(value) ||
  663.         this.hex6(value) ||
  664.         this.hex3(value);
  665. }
  666.  
  667. Color.prototype.darken = function(amount) {
  668.     var a = 1 - amount;
  669.     return  new Color([
  670.         Math.round(this.r * a),
  671.         Math.round(this.g * a),
  672.         Math.round(this.b * a),
  673.         this.a
  674.     ]);
  675. };
  676.  
  677. Color.prototype.isTransparent = function() {
  678.     return this.a === 0;
  679. };
  680.  
  681. Color.prototype.isBlack = function() {
  682.     return this.r === 0 && this.g === 0 && this.b === 0;
  683. };
  684.  
  685. Color.prototype.fromArray = function(array) {
  686.     if (Array.isArray(array)) {
  687.         this.r = Math.min(array[0], 255);
  688.         this.g = Math.min(array[1], 255);
  689.         this.b = Math.min(array[2], 255);
  690.         if (array.length > 3) {
  691.             this.a = array[3];
  692.         }
  693.     }
  694.  
  695.     return (Array.isArray(array));
  696. };
  697.  
  698. var _hex3 = /^#([a-f0-9]{3})$/i;
  699.  
  700. Color.prototype.hex3 = function(value) {
  701.     var match = null;
  702.     if ((match = value.match(_hex3)) !== null) {
  703.         this.r = parseInt(match[1][0] + match[1][0], 16);
  704.         this.g = parseInt(match[1][1] + match[1][1], 16);
  705.         this.b = parseInt(match[1][2] + match[1][2], 16);
  706.     }
  707.     return match !== null;
  708. };
  709.  
  710. var _hex6 = /^#([a-f0-9]{6})$/i;
  711.  
  712. Color.prototype.hex6 = function(value) {
  713.     var match = null;
  714.     if ((match = value.match(_hex6)) !== null) {
  715.         this.r = parseInt(match[1].substring(0, 2), 16);
  716.         this.g = parseInt(match[1].substring(2, 4), 16);
  717.         this.b = parseInt(match[1].substring(4, 6), 16);
  718.     }
  719.     return match !== null;
  720. };
  721.  
  722.  
  723. var _rgb = /^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/;
  724.  
  725. Color.prototype.rgb = function(value) {
  726.     var match = null;
  727.     if ((match = value.match(_rgb)) !== null) {
  728.         this.r = Number(match[1]);
  729.         this.g = Number(match[2]);
  730.         this.b = Number(match[3]);
  731.     }
  732.     return match !== null;
  733. };
  734.  
  735. var _rgba = /^rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d?\.?\d+)\s*\)$/;
  736.  
  737. Color.prototype.rgba = function(value) {
  738.     var match = null;
  739.     if ((match = value.match(_rgba)) !== null) {
  740.         this.r = Number(match[1]);
  741.         this.g = Number(match[2]);
  742.         this.b = Number(match[3]);
  743.         this.a = Number(match[4]);
  744.     }
  745.     return match !== null;
  746. };
  747.  
  748. Color.prototype.toString = function() {
  749.     return this.a !== null && this.a !== 1 ?
  750.     "rgba(" + [this.r, this.g, this.b, this.a].join(",") + ")" :
  751.     "rgb(" + [this.r, this.g, this.b].join(",") + ")";
  752. };
  753.  
  754. Color.prototype.namedColor = function(value) {
  755.     value = value.toLowerCase();
  756.     var color = colors[value];
  757.     if (color) {
  758.         this.r = color[0];
  759.         this.g = color[1];
  760.         this.b = color[2];
  761.     } else if (value === "transparent") {
  762.         this.r = this.g = this.b = this.a = 0;
  763.         return true;
  764.     }
  765.  
  766.     return !!color;
  767. };
  768.  
  769. Color.prototype.isColor = true;
  770.  
  771. // JSON.stringify([].slice.call($$('.named-color-table tr'), 1).map(function(row) { return [row.childNodes[3].textContent, row.childNodes[5].textContent.trim().split(",").map(Number)] }).reduce(function(data, row) {data[row[0]] = row[1]; return data}, {}))
  772. var colors = {
  773.     "aliceblue": [240, 248, 255],
  774.     "antiquewhite": [250, 235, 215],
  775.     "aqua": [0, 255, 255],
  776.     "aquamarine": [127, 255, 212],
  777.     "azure": [240, 255, 255],
  778.     "beige": [245, 245, 220],
  779.     "bisque": [255, 228, 196],
  780.     "black": [0, 0, 0],
  781.     "blanchedalmond": [255, 235, 205],
  782.     "blue": [0, 0, 255],
  783.     "blueviolet": [138, 43, 226],
  784.     "brown": [165, 42, 42],
  785.     "burlywood": [222, 184, 135],
  786.     "cadetblue": [95, 158, 160],
  787.     "chartreuse": [127, 255, 0],
  788.     "chocolate": [210, 105, 30],
  789.     "coral": [255, 127, 80],
  790.     "cornflowerblue": [100, 149, 237],
  791.     "cornsilk": [255, 248, 220],
  792.     "crimson": [220, 20, 60],
  793.     "cyan": [0, 255, 255],
  794.     "darkblue": [0, 0, 139],
  795.     "darkcyan": [0, 139, 139],
  796.     "darkgoldenrod": [184, 134, 11],
  797.     "darkgray": [169, 169, 169],
  798.     "darkgreen": [0, 100, 0],
  799.     "darkgrey": [169, 169, 169],
  800.     "darkkhaki": [189, 183, 107],
  801.     "darkmagenta": [139, 0, 139],
  802.     "darkolivegreen": [85, 107, 47],
  803.     "darkorange": [255, 140, 0],
  804.     "darkorchid": [153, 50, 204],
  805.     "darkred": [139, 0, 0],
  806.     "darksalmon": [233, 150, 122],
  807.     "darkseagreen": [143, 188, 143],
  808.     "darkslateblue": [72, 61, 139],
  809.     "darkslategray": [47, 79, 79],
  810.     "darkslategrey": [47, 79, 79],
  811.     "darkturquoise": [0, 206, 209],
  812.     "darkviolet": [148, 0, 211],
  813.     "deeppink": [255, 20, 147],
  814.     "deepskyblue": [0, 191, 255],
  815.     "dimgray": [105, 105, 105],
  816.     "dimgrey": [105, 105, 105],
  817.     "dodgerblue": [30, 144, 255],
  818.     "firebrick": [178, 34, 34],
  819.     "floralwhite": [255, 250, 240],
  820.     "forestgreen": [34, 139, 34],
  821.     "fuchsia": [255, 0, 255],
  822.     "gainsboro": [220, 220, 220],
  823.     "ghostwhite": [248, 248, 255],
  824.     "gold": [255, 215, 0],
  825.     "goldenrod": [218, 165, 32],
  826.     "gray": [128, 128, 128],
  827.     "green": [0, 128, 0],
  828.     "greenyellow": [173, 255, 47],
  829.     "grey": [128, 128, 128],
  830.     "honeydew": [240, 255, 240],
  831.     "hotpink": [255, 105, 180],
  832.     "indianred": [205, 92, 92],
  833.     "indigo": [75, 0, 130],
  834.     "ivory": [255, 255, 240],
  835.     "khaki": [240, 230, 140],
  836.     "lavender": [230, 230, 250],
  837.     "lavenderblush": [255, 240, 245],
  838.     "lawngreen": [124, 252, 0],
  839.     "lemonchiffon": [255, 250, 205],
  840.     "lightblue": [173, 216, 230],
  841.     "lightcoral": [240, 128, 128],
  842.     "lightcyan": [224, 255, 255],
  843.     "lightgoldenrodyellow": [250, 250, 210],
  844.     "lightgray": [211, 211, 211],
  845.     "lightgreen": [144, 238, 144],
  846.     "lightgrey": [211, 211, 211],
  847.     "lightpink": [255, 182, 193],
  848.     "lightsalmon": [255, 160, 122],
  849.     "lightseagreen": [32, 178, 170],
  850.     "lightskyblue": [135, 206, 250],
  851.     "lightslategray": [119, 136, 153],
  852.     "lightslategrey": [119, 136, 153],
  853.     "lightsteelblue": [176, 196, 222],
  854.     "lightyellow": [255, 255, 224],
  855.     "lime": [0, 255, 0],
  856.     "limegreen": [50, 205, 50],
  857.     "linen": [250, 240, 230],
  858.     "magenta": [255, 0, 255],
  859.     "maroon": [128, 0, 0],
  860.     "mediumaquamarine": [102, 205, 170],
  861.     "mediumblue": [0, 0, 205],
  862.     "mediumorchid": [186, 85, 211],
  863.     "mediumpurple": [147, 112, 219],
  864.     "mediumseagreen": [60, 179, 113],
  865.     "mediumslateblue": [123, 104, 238],
  866.     "mediumspringgreen": [0, 250, 154],
  867.     "mediumturquoise": [72, 209, 204],
  868.     "mediumvioletred": [199, 21, 133],
  869.     "midnightblue": [25, 25, 112],
  870.     "mintcream": [245, 255, 250],
  871.     "mistyrose": [255, 228, 225],
  872.     "moccasin": [255, 228, 181],
  873.     "navajowhite": [255, 222, 173],
  874.     "navy": [0, 0, 128],
  875.     "oldlace": [253, 245, 230],
  876.     "olive": [128, 128, 0],
  877.     "olivedrab": [107, 142, 35],
  878.     "orange": [255, 165, 0],
  879.     "orangered": [255, 69, 0],
  880.     "orchid": [218, 112, 214],
  881.     "palegoldenrod": [238, 232, 170],
  882.     "palegreen": [152, 251, 152],
  883.     "paleturquoise": [175, 238, 238],
  884.     "palevioletred": [219, 112, 147],
  885.     "papayawhip": [255, 239, 213],
  886.     "peachpuff": [255, 218, 185],
  887.     "peru": [205, 133, 63],
  888.     "pink": [255, 192, 203],
  889.     "plum": [221, 160, 221],
  890.     "powderblue": [176, 224, 230],
  891.     "purple": [128, 0, 128],
  892.     "rebeccapurple": [102, 51, 153],
  893.     "red": [255, 0, 0],
  894.     "rosybrown": [188, 143, 143],
  895.     "royalblue": [65, 105, 225],
  896.     "saddlebrown": [139, 69, 19],
  897.     "salmon": [250, 128, 114],
  898.     "sandybrown": [244, 164, 96],
  899.     "seagreen": [46, 139, 87],
  900.     "seashell": [255, 245, 238],
  901.     "sienna": [160, 82, 45],
  902.     "silver": [192, 192, 192],
  903.     "skyblue": [135, 206, 235],
  904.     "slateblue": [106, 90, 205],
  905.     "slategray": [112, 128, 144],
  906.     "slategrey": [112, 128, 144],
  907.     "snow": [255, 250, 250],
  908.     "springgreen": [0, 255, 127],
  909.     "steelblue": [70, 130, 180],
  910.     "tan": [210, 180, 140],
  911.     "teal": [0, 128, 128],
  912.     "thistle": [216, 191, 216],
  913.     "tomato": [255, 99, 71],
  914.     "turquoise": [64, 224, 208],
  915.     "violet": [238, 130, 238],
  916.     "wheat": [245, 222, 179],
  917.     "white": [255, 255, 255],
  918.     "whitesmoke": [245, 245, 245],
  919.     "yellow": [255, 255, 0],
  920.     "yellowgreen": [154, 205, 50]
  921. };
  922.  
  923. module.exports = Color;
  924.  
  925. },{}],4:[function(require,module,exports){
  926. var Support = require('./support');
  927. var CanvasRenderer = require('./renderers/canvas');
  928. var ImageLoader = require('./imageloader');
  929. var NodeParser = require('./nodeparser');
  930. var NodeContainer = require('./nodecontainer');
  931. var log = require('./log');
  932. var utils = require('./utils');
  933. var createWindowClone = require('./clone');
  934. var loadUrlDocument = require('./proxy').loadUrlDocument;
  935. var getBounds = utils.getBounds;
  936.  
  937. var html2canvasNodeAttribute = "data-html2canvas-node";
  938. var html2canvasCloneIndex = 0;
  939.  
  940. function html2canvas(nodeList, options) {
  941.     var index = html2canvasCloneIndex++;
  942.     options = options || {};
  943.     if (options.logging) {
  944.         window.html2canvas.logging = true;
  945.         window.html2canvas.start = Date.now();
  946.     }
  947.  
  948.     options.async = typeof(options.async) === "undefined" ? true : options.async;
  949.     options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
  950.     options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
  951.     options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
  952.     options.imageTimeout = typeof(options.imageTimeout) === "undefined" ? 10000 : options.imageTimeout;
  953.     options.renderer = typeof(options.renderer) === "function" ? options.renderer : CanvasRenderer;
  954.     options.strict = !!options.strict;
  955.  
  956.     if (typeof(nodeList) === "string") {
  957.         if (typeof(options.proxy) !== "string") {
  958.             return Promise.reject("Proxy must be used when rendering url");
  959.         }
  960.         var width = options.width != null ? options.width : window.innerWidth;
  961.         var height = options.height != null ? options.height : window.innerHeight;
  962.         return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, width, height, options).then(function(container) {
  963.             return renderWindow(container.contentWindow.document.documentElement, container, options, width, height);
  964.         });
  965.     }
  966.  
  967.     var node = ((nodeList === undefined) ? [document.documentElement] : ((nodeList.length) ? nodeList : [nodeList]))[0];
  968.     node.setAttribute(html2canvasNodeAttribute + index, index);
  969.     return renderDocument(node.ownerDocument, options, node.ownerDocument.defaultView.innerWidth, node.ownerDocument.defaultView.innerHeight, index).then(function(canvas) {
  970.         if (typeof(options.onrendered) === "function") {
  971.             log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
  972.             options.onrendered(canvas);
  973.         }
  974.         return canvas;
  975.     });
  976. }
  977.  
  978. html2canvas.CanvasRenderer = CanvasRenderer;
  979. html2canvas.NodeContainer = NodeContainer;
  980. html2canvas.log = log;
  981. html2canvas.utils = utils;
  982.  
  983. var html2canvasExport = (typeof(document) === "undefined" || typeof(Object.create) !== "function" || typeof(document.createElement("canvas").getContext) !== "function") ? function() {
  984.     return Promise.reject("No canvas support");
  985. } : html2canvas;
  986.  
  987. module.exports = html2canvasExport;
  988.  
  989. if (typeof(define) === 'function' && define.amd) {
  990.     define('html2canvas', [], function() {
  991.         return html2canvasExport;
  992.     });
  993. }
  994.  
  995. function renderDocument(document, options, windowWidth, windowHeight, html2canvasIndex) {
  996.     return createWindowClone(document, document, windowWidth, windowHeight, options, document.defaultView.pageXOffset, document.defaultView.pageYOffset).then(function(container) {
  997.         log("Document cloned");
  998.         var attributeName = html2canvasNodeAttribute + html2canvasIndex;
  999.         var selector = "[" + attributeName + "='" + html2canvasIndex + "']";
  1000.         document.querySelector(selector).removeAttribute(attributeName);
  1001.         var clonedWindow = container.contentWindow;
  1002.         var node = clonedWindow.document.querySelector(selector);
  1003.         var oncloneHandler = (typeof(options.onclone) === "function") ? Promise.resolve(options.onclone(clonedWindow.document)) : Promise.resolve(true);
  1004.         return oncloneHandler.then(function() {
  1005.             return renderWindow(node, container, options, windowWidth, windowHeight);
  1006.         });
  1007.     });
  1008. }
  1009.  
  1010. function renderWindow(node, container, options, windowWidth, windowHeight) {
  1011.     var clonedWindow = container.contentWindow;
  1012.     var support = new Support(clonedWindow.document);
  1013.     var imageLoader = new ImageLoader(options, support);
  1014.     var bounds = getBounds(node);
  1015.     var width = options.type === "view" ? windowWidth : documentWidth(clonedWindow.document);
  1016.     var height = options.type === "view" ? windowHeight : documentHeight(clonedWindow.document);
  1017.     var renderer = new options.renderer(width, height, imageLoader, options, document);
  1018.     var parser = new NodeParser(node, renderer, support, imageLoader, options);
  1019.     return parser.ready.then(function() {
  1020.         log("Finished rendering");
  1021.         var canvas;
  1022.  
  1023.         if (options.type === "view") {
  1024.             canvas = crop(renderer.canvas, {width: renderer.canvas.width, height: renderer.canvas.height, top: 0, left: 0, x: 0, y: 0});
  1025.         } else if (node === clonedWindow.document.body || node === clonedWindow.document.documentElement || options.canvas != null) {
  1026.             canvas = renderer.canvas;
  1027.         } else {
  1028.             canvas = crop(renderer.canvas, {width:  options.width != null ? options.width : bounds.width, height: options.height != null ? options.height : bounds.height, top: bounds.top, left: bounds.left, x: clonedWindow.pageXOffset, y: clonedWindow.pageYOffset});
  1029.         }
  1030.  
  1031.         cleanupContainer(container, options);
  1032.         return canvas;
  1033.     });
  1034. }
  1035.  
  1036. function cleanupContainer(container, options) {
  1037.     if (options.removeContainer) {
  1038.         container.parentNode.removeChild(container);
  1039.         log("Cleaned up container");
  1040.     }
  1041. }
  1042.  
  1043. function crop(canvas, bounds) {
  1044.     var croppedCanvas = document.createElement("canvas");
  1045.     var x1 = Math.min(canvas.width - 1, Math.max(0, bounds.left)) - 1;
  1046.     var x2 = Math.min(canvas.width, Math.max(1, bounds.left + bounds.width)) + 1;
  1047.     var y1 = Math.min(canvas.height - 1, Math.max(0, bounds.top)) - 1;
  1048.     var y2 = Math.min(canvas.height, Math.max(1, bounds.top + bounds.height)) + 1;
  1049.  
  1050.     var w = x2 - x1;
  1051.     var h = y2 - y1;
  1052.  
  1053.     croppedCanvas.width = w;
  1054.     croppedCanvas.height =  h;
  1055.     log("Cropping canvas at:", "left:", bounds.left, "top:", bounds.top, "width:", w, "height:", h);
  1056.     log("Resulting crop with width", bounds.width, "and height", bounds.height, " with x", x1, "and y", y1);
  1057.     var cropCtx = croppedCanvas.getContext("2d");
  1058.     cropCtx.drawImage(canvas, x1, y1, w, h, 0, 0, w, h);
  1059.     // Text got painted to screen offset?
  1060.     // cropCtx.drawImage(canvas, x1 - window.scrollX, y1 - window.scrollY, w, h, 0, 0, w, h);
  1061.     return croppedCanvas;
  1062. }
  1063.  
  1064. function documentWidth (doc) {
  1065.     return Math.max(
  1066.         Math.max(doc.body.scrollWidth, doc.documentElement.scrollWidth),
  1067.         Math.max(doc.body.offsetWidth, doc.documentElement.offsetWidth),
  1068.         Math.max(doc.body.clientWidth, doc.documentElement.clientWidth)
  1069.     );
  1070. }
  1071.  
  1072. function documentHeight (doc) {
  1073.     return Math.max(
  1074.         Math.max(doc.body.scrollHeight, doc.documentElement.scrollHeight),
  1075.         Math.max(doc.body.offsetHeight, doc.documentElement.offsetHeight),
  1076.         Math.max(doc.body.clientHeight, doc.documentElement.clientHeight)
  1077.     );
  1078. }
  1079.  
  1080. function absoluteUrl(url) {
  1081.     var link = document.createElement("a");
  1082.     link.href = url;
  1083.     link.href = link.href;
  1084.     return link;
  1085. }
  1086.  
  1087. },{"./clone":2,"./imageloader":11,"./log":13,"./nodecontainer":14,"./nodeparser":15,"./proxy":16,"./renderers/canvas":20,"./support":22,"./utils":26}],5:[function(require,module,exports){
  1088. var log = require('./log');
  1089. var smallImage = require('./utils').smallImage;
  1090.  
  1091. function DummyImageContainer(src) {
  1092.     this.src = src;
  1093.     log("DummyImageContainer for", src);
  1094.     if (!this.promise || !this.image) {
  1095.         log("Initiating DummyImageContainer");
  1096.         DummyImageContainer.prototype.image = new Image();
  1097.         var image = this.image;
  1098.         DummyImageContainer.prototype.promise = new Promise(function(resolve, reject) {
  1099.             image.onload = resolve;
  1100.             image.onerror = reject;
  1101.             image.src = smallImage();
  1102.             if (image.complete === true) {
  1103.                 resolve(image);
  1104.             }
  1105.         });
  1106.     }
  1107. }
  1108.  
  1109. module.exports = DummyImageContainer;
  1110.  
  1111. },{"./log":13,"./utils":26}],6:[function(require,module,exports){
  1112. var smallImage = require('./utils').smallImage;
  1113.  
  1114. function Font(family, size) {
  1115.     var container = document.createElement('div'),
  1116.         img = document.createElement('img'),
  1117.         span = document.createElement('span'),
  1118.         sampleText = 'Hidden Text',
  1119.         baseline,
  1120.         middle;
  1121.  
  1122.     container.style.visibility = "hidden";
  1123.     container.style.fontFamily = family;
  1124.     container.style.fontSize = size;
  1125.     container.style.margin = 0;
  1126.     container.style.padding = 0;
  1127.  
  1128.     document.body.appendChild(container);
  1129.  
  1130.     img.src = smallImage();
  1131.     img.width = 1;
  1132.     img.height = 1;
  1133.  
  1134.     img.style.margin = 0;
  1135.     img.style.padding = 0;
  1136.     img.style.verticalAlign = "baseline";
  1137.  
  1138.     span.style.fontFamily = family;
  1139.     span.style.fontSize = size;
  1140.     span.style.margin = 0;
  1141.     span.style.padding = 0;
  1142.  
  1143.     span.appendChild(document.createTextNode(sampleText));
  1144.     container.appendChild(span);
  1145.     container.appendChild(img);
  1146.     baseline = (img.offsetTop - span.offsetTop) + 1;
  1147.  
  1148.     container.removeChild(span);
  1149.     container.appendChild(document.createTextNode(sampleText));
  1150.  
  1151.     container.style.lineHeight = "normal";
  1152.     img.style.verticalAlign = "super";
  1153.  
  1154.     middle = (img.offsetTop-container.offsetTop) + 1;
  1155.  
  1156.     document.body.removeChild(container);
  1157.  
  1158.     this.baseline = baseline;
  1159.     this.lineWidth = 1;
  1160.     this.middle = middle;
  1161. }
  1162.  
  1163. module.exports = Font;
  1164.  
  1165. },{"./utils":26}],7:[function(require,module,exports){
  1166. var Font = require('./font');
  1167.  
  1168. function FontMetrics() {
  1169.     this.data = {};
  1170. }
  1171.  
  1172. FontMetrics.prototype.getMetrics = function(family, size) {
  1173.     if (this.data[family + "-" + size] === undefined) {
  1174.         this.data[family + "-" + size] = new Font(family, size);
  1175.     }
  1176.     return this.data[family + "-" + size];
  1177. };
  1178.  
  1179. module.exports = FontMetrics;
  1180.  
  1181. },{"./font":6}],8:[function(require,module,exports){
  1182. var utils = require('./utils');
  1183. var getBounds = utils.getBounds;
  1184. var loadUrlDocument = require('./proxy').loadUrlDocument;
  1185.  
  1186. function FrameContainer(container, sameOrigin, options) {
  1187.     this.image = null;
  1188.     this.src = container;
  1189.     var self = this;
  1190.     var bounds = getBounds(container);
  1191.     this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
  1192.         if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
  1193.             container.contentWindow.onload = container.onload = function() {
  1194.                 resolve(container);
  1195.             };
  1196.         } else {
  1197.             resolve(container);
  1198.         }
  1199.     })).then(function(container) {
  1200.         var html2canvas = require('./core');
  1201.         return html2canvas(container.contentWindow.document.documentElement, {type: 'view', width: container.width, height: container.height, proxy: options.proxy, javascriptEnabled: options.javascriptEnabled, removeContainer: options.removeContainer, allowTaint: options.allowTaint, imageTimeout: options.imageTimeout / 2});
  1202.     }).then(function(canvas) {
  1203.         return self.image = canvas;
  1204.     });
  1205. }
  1206.  
  1207. FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
  1208.     var container = this.src;
  1209.     return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
  1210. };
  1211.  
  1212. module.exports = FrameContainer;
  1213.  
  1214. },{"./core":4,"./proxy":16,"./utils":26}],9:[function(require,module,exports){
  1215. function GradientContainer(imageData) {
  1216.     this.src = imageData.value;
  1217.     this.colorStops = [];
  1218.     this.type = null;
  1219.     this.x0 = 0.5;
  1220.     this.y0 = 0.5;
  1221.     this.x1 = 0.5;
  1222.     this.y1 = 0.5;
  1223.     this.promise = Promise.resolve(true);
  1224. }
  1225.  
  1226. GradientContainer.TYPES = {
  1227.     LINEAR: 1,
  1228.     RADIAL: 2
  1229. };
  1230.  
  1231. // TODO: support hsl[a], negative %/length values
  1232. // TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
  1233. GradientContainer.REGEXP_COLORSTOP = /^\s*(rgba?\(\s*\d{1,3},\s*\d{1,3},\s*\d{1,3}(?:,\s*[0-9\.]+)?\s*\)|[a-z]{3,20}|#[a-f0-9]{3,6})(?:\s+(\d{1,3}(?:\.\d+)?)(%|px)?)?(?:\s|$)/i;
  1234.  
  1235. module.exports = GradientContainer;
  1236.  
  1237. },{}],10:[function(require,module,exports){
  1238. function ImageContainer(src, cors) {
  1239.     this.src = src;
  1240.     this.image = new Image();
  1241.     var self = this;
  1242.     this.tainted = null;
  1243.     this.promise = new Promise(function(resolve, reject) {
  1244.         self.image.onload = resolve;
  1245.         self.image.onerror = reject;
  1246.         if (cors) {
  1247.             self.image.crossOrigin = "anonymous";
  1248.         }
  1249.         self.image.src = src;
  1250.         if (self.image.complete === true) {
  1251.             resolve(self.image);
  1252.         }
  1253.     });
  1254. }
  1255.  
  1256. module.exports = ImageContainer;
  1257.  
  1258. },{}],11:[function(require,module,exports){
  1259. var log = require('./log');
  1260. var ImageContainer = require('./imagecontainer');
  1261. var DummyImageContainer = require('./dummyimagecontainer');
  1262. var ProxyImageContainer = require('./proxyimagecontainer');
  1263. var FrameContainer = require('./framecontainer');
  1264. var SVGContainer = require('./svgcontainer');
  1265. var SVGNodeContainer = require('./svgnodecontainer');
  1266. var LinearGradientContainer = require('./lineargradientcontainer');
  1267. var WebkitGradientContainer = require('./webkitgradientcontainer');
  1268. var bind = require('./utils').bind;
  1269.  
  1270. function ImageLoader(options, support) {
  1271.     this.link = null;
  1272.     this.options = options;
  1273.     this.support = support;
  1274.     this.origin = this.getOrigin(window.location.href);
  1275. }
  1276.  
  1277. ImageLoader.prototype.findImages = function(nodes) {
  1278.     var images = [];
  1279.     nodes.reduce(function(imageNodes, container) {
  1280.         switch(container.node.nodeName) {
  1281.         case "IMG":
  1282.             return imageNodes.concat([{
  1283.                 args: [container.node.src],
  1284.                 method: "url"
  1285.             }]);
  1286.         case "svg":
  1287.         case "IFRAME":
  1288.             return imageNodes.concat([{
  1289.                 args: [container.node],
  1290.                 method: container.node.nodeName
  1291.             }]);
  1292.         }
  1293.         return imageNodes;
  1294.     }, []).forEach(this.addImage(images, this.loadImage), this);
  1295.     return images;
  1296. };
  1297.  
  1298. ImageLoader.prototype.findBackgroundImage = function(images, container) {
  1299.     container.parseBackgroundImages().filter(this.hasImageBackground).forEach(this.addImage(images, this.loadImage), this);
  1300.     return images;
  1301. };
  1302.  
  1303. ImageLoader.prototype.addImage = function(images, callback) {
  1304.     return function(newImage) {
  1305.         newImage.args.forEach(function(image) {
  1306.             if (!this.imageExists(images, image)) {
  1307.                 images.splice(0, 0, callback.call(this, newImage));
  1308.                 log('Added image #' + (images.length), typeof(image) === "string" ? image.substring(0, 100) : image);
  1309.             }
  1310.         }, this);
  1311.     };
  1312. };
  1313.  
  1314. ImageLoader.prototype.hasImageBackground = function(imageData) {
  1315.     return imageData.method !== "none";
  1316. };
  1317.  
  1318. ImageLoader.prototype.loadImage = function(imageData) {
  1319.     if (imageData.method === "url") {
  1320.         var src = imageData.args[0];
  1321.         if (this.isSVG(src) && !this.support.svg && !this.options.allowTaint) {
  1322.             return new SVGContainer(src);
  1323.         } else if (src.match(/data:image\/.*;base64,/i)) {
  1324.             return new ImageContainer(src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, ''), false);
  1325.         } else if (this.isSameOrigin(src) || this.options.allowTaint === true || this.isSVG(src)) {
  1326.             return new ImageContainer(src, false);
  1327.         } else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) {
  1328.             return new ImageContainer(src, true);
  1329.         } else if (this.options.proxy) {
  1330.             return new ProxyImageContainer(src, this.options.proxy);
  1331.         } else {
  1332.             return new DummyImageContainer(src);
  1333.         }
  1334.     } else if (imageData.method === "linear-gradient") {
  1335.         return new LinearGradientContainer(imageData);
  1336.     } else if (imageData.method === "gradient") {
  1337.         return new WebkitGradientContainer(imageData);
  1338.     } else if (imageData.method === "svg") {
  1339.         return new SVGNodeContainer(imageData.args[0], this.support.svg);
  1340.     } else if (imageData.method === "IFRAME") {
  1341.         return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
  1342.     } else {
  1343.         return new DummyImageContainer(imageData);
  1344.     }
  1345. };
  1346.  
  1347. ImageLoader.prototype.isSVG = function(src) {
  1348.     return src.substring(src.length - 3).toLowerCase() === "svg" || SVGContainer.prototype.isInline(src);
  1349. };
  1350.  
  1351. ImageLoader.prototype.imageExists = function(images, src) {
  1352.     return images.some(function(image) {
  1353.         return image.src === src;
  1354.     });
  1355. };
  1356.  
  1357. ImageLoader.prototype.isSameOrigin = function(url) {
  1358.     return (this.getOrigin(url) === this.origin);
  1359. };
  1360.  
  1361. ImageLoader.prototype.getOrigin = function(url) {
  1362.     var link = this.link || (this.link = document.createElement("a"));
  1363.     link.href = url;
  1364.     link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
  1365.     return link.protocol + link.hostname + link.port;
  1366. };
  1367.  
  1368. ImageLoader.prototype.getPromise = function(container) {
  1369.     return this.timeout(container, this.options.imageTimeout)['catch'](function() {
  1370.         var dummy = new DummyImageContainer(container.src);
  1371.         return dummy.promise.then(function(image) {
  1372.             container.image = image;
  1373.         });
  1374.     });
  1375. };
  1376.  
  1377. ImageLoader.prototype.get = function(src) {
  1378.     var found = null;
  1379.     return this.images.some(function(img) {
  1380.         return (found = img).src === src;
  1381.     }) ? found : null;
  1382. };
  1383.  
  1384. ImageLoader.prototype.fetch = function(nodes) {
  1385.     this.images = nodes.reduce(bind(this.findBackgroundImage, this), this.findImages(nodes));
  1386.     this.images.forEach(function(image, index) {
  1387.         image.promise.then(function() {
  1388.             log("Succesfully loaded image #"+ (index+1), image);
  1389.         }, function(e) {
  1390.             log("Failed loading image #"+ (index+1), image, e);
  1391.         });
  1392.     });
  1393.     this.ready = Promise.all(this.images.map(this.getPromise, this));
  1394.     log("Finished searching images");
  1395.     return this;
  1396. };
  1397.  
  1398. ImageLoader.prototype.timeout = function(container, timeout) {
  1399.     var timer;
  1400.     var promise = Promise.race([container.promise, new Promise(function(res, reject) {
  1401.         timer = setTimeout(function() {
  1402.             log("Timed out loading image", container);
  1403.             reject(container);
  1404.         }, timeout);
  1405.     })]).then(function(container) {
  1406.         clearTimeout(timer);
  1407.         return container;
  1408.     });
  1409.     promise['catch'](function() {
  1410.         clearTimeout(timer);
  1411.     });
  1412.     return promise;
  1413. };
  1414.  
  1415. module.exports = ImageLoader;
  1416.  
  1417. },{"./dummyimagecontainer":5,"./framecontainer":8,"./imagecontainer":10,"./lineargradientcontainer":12,"./log":13,"./proxyimagecontainer":17,"./svgcontainer":23,"./svgnodecontainer":24,"./utils":26,"./webkitgradientcontainer":27}],12:[function(require,module,exports){
  1418. var GradientContainer = require('./gradientcontainer');
  1419. var Color = require('./color');
  1420.  
  1421. function LinearGradientContainer(imageData) {
  1422.     GradientContainer.apply(this, arguments);
  1423.     this.type = GradientContainer.TYPES.LINEAR;
  1424.  
  1425.     var hasDirection = LinearGradientContainer.REGEXP_DIRECTION.test( imageData.args[0] ) ||
  1426.         !GradientContainer.REGEXP_COLORSTOP.test( imageData.args[0] );
  1427.  
  1428.     if (hasDirection) {
  1429.         imageData.args[0].split(/\s+/).reverse().forEach(function(position, index) {
  1430.             switch(position) {
  1431.             case "left":
  1432.                 this.x0 = 0;
  1433.                 this.x1 = 1;
  1434.                 break;
  1435.             case "top":
  1436.                 this.y0 = 0;
  1437.                 this.y1 = 1;
  1438.                 break;
  1439.             case "right":
  1440.                 this.x0 = 1;
  1441.                 this.x1 = 0;
  1442.                 break;
  1443.             case "bottom":
  1444.                 this.y0 = 1;
  1445.                 this.y1 = 0;
  1446.                 break;
  1447.             case "to":
  1448.                 var y0 = this.y0;
  1449.                 var x0 = this.x0;
  1450.                 this.y0 = this.y1;
  1451.                 this.x0 = this.x1;
  1452.                 this.x1 = x0;
  1453.                 this.y1 = y0;
  1454.                 break;
  1455.             case "center":
  1456.                 break; // centered by default
  1457.             // Firefox internally converts position keywords to percentages:
  1458.             // http://www.w3.org/TR/2010/WD-CSS2-20101207/colors.html#propdef-background-position
  1459.             default: // percentage or absolute length
  1460.                 // TODO: support absolute start point positions (e.g., use bounds to convert px to a ratio)
  1461.                 var ratio = parseFloat(position, 10) * 1e-2;
  1462.                 if (isNaN(ratio)) { // invalid or unhandled value
  1463.                     break;
  1464.                 }
  1465.                 if (index === 0) {
  1466.                     this.y0 = ratio;
  1467.                     this.y1 = 1 - this.y0;
  1468.                 } else {
  1469.                     this.x0 = ratio;
  1470.                     this.x1 = 1 - this.x0;
  1471.                 }
  1472.                 break;
  1473.             }
  1474.         }, this);
  1475.     } else {
  1476.         this.y0 = 0;
  1477.         this.y1 = 1;
  1478.     }
  1479.  
  1480.     this.colorStops = imageData.args.slice(hasDirection ? 1 : 0).map(function(colorStop) {
  1481.         var colorStopMatch = colorStop.match(GradientContainer.REGEXP_COLORSTOP);
  1482.         var value = +colorStopMatch[2];
  1483.         var unit = value === 0 ? "%" : colorStopMatch[3]; // treat "0" as "0%"
  1484.         return {
  1485.             color: new Color(colorStopMatch[1]),
  1486.             // TODO: support absolute stop positions (e.g., compute gradient line length & convert px to ratio)
  1487.             stop: unit === "%" ? value / 100 : null
  1488.         };
  1489.     });
  1490.  
  1491.     if (this.colorStops[0].stop === null) {
  1492.         this.colorStops[0].stop = 0;
  1493.     }
  1494.  
  1495.     if (this.colorStops[this.colorStops.length - 1].stop === null) {
  1496.         this.colorStops[this.colorStops.length - 1].stop = 1;
  1497.     }
  1498.  
  1499.     // calculates and fills-in explicit stop positions when omitted from rule
  1500.     this.colorStops.forEach(function(colorStop, index) {
  1501.         if (colorStop.stop === null) {
  1502.             this.colorStops.slice(index).some(function(find, count) {
  1503.                 if (find.stop !== null) {
  1504.                     colorStop.stop = ((find.stop - this.colorStops[index - 1].stop) / (count + 1)) + this.colorStops[index - 1].stop;
  1505.                     return true;
  1506.                 } else {
  1507.                     return false;
  1508.                 }
  1509.             }, this);
  1510.         }
  1511.     }, this);
  1512. }
  1513.  
  1514. LinearGradientContainer.prototype = Object.create(GradientContainer.prototype);
  1515.  
  1516. // TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
  1517. LinearGradientContainer.REGEXP_DIRECTION = /^\s*(?:to|left|right|top|bottom|center|\d{1,3}(?:\.\d+)?%?)(?:\s|$)/i;
  1518.  
  1519. module.exports = LinearGradientContainer;
  1520.  
  1521. },{"./color":3,"./gradientcontainer":9}],13:[function(require,module,exports){
  1522. module.exports = function() {
  1523.     if (window.html2canvas.logging && window.console && window.console.log) {
  1524.         Function.prototype.bind.call(window.console.log, (window.console)).apply(window.console, [(Date.now() - window.html2canvas.start) + "ms", "html2canvas:"].concat([].slice.call(arguments, 0)));
  1525.     }
  1526. };
  1527.  
  1528. },{}],14:[function(require,module,exports){
  1529. var Color = require('./color');
  1530. var utils = require('./utils');
  1531. var getBounds = utils.getBounds;
  1532. var parseBackgrounds = utils.parseBackgrounds;
  1533. var offsetBounds = utils.offsetBounds;
  1534.  
  1535. function NodeContainer(node, parent) {
  1536.     this.node = node;
  1537.     this.parent = parent;
  1538.     this.stack = null;
  1539.     this.bounds = null;
  1540.     this.borders = null;
  1541.     this.clip = [];
  1542.     this.backgroundClip = [];
  1543.     this.offsetBounds = null;
  1544.     this.visible = null;
  1545.     this.computedStyles = null;
  1546.     this.colors = {};
  1547.     this.styles = {};
  1548.     this.backgroundImages = null;
  1549.     this.transformData = null;
  1550.     this.transformMatrix = null;
  1551.     this.isPseudoElement = false;
  1552.     this.opacity = null;
  1553. }
  1554.  
  1555. NodeContainer.prototype.cloneTo = function(stack) {
  1556.     stack.visible = this.visible;
  1557.     stack.borders = this.borders;
  1558.     stack.bounds = this.bounds;
  1559.     stack.clip = this.clip;
  1560.     stack.backgroundClip = this.backgroundClip;
  1561.     stack.computedStyles = this.computedStyles;
  1562.     stack.styles = this.styles;
  1563.     stack.backgroundImages = this.backgroundImages;
  1564.     stack.opacity = this.opacity;
  1565. };
  1566.  
  1567. NodeContainer.prototype.getOpacity = function() {
  1568.     return this.opacity === null ? (this.opacity = this.cssFloat('opacity')) : this.opacity;
  1569. };
  1570.  
  1571. NodeContainer.prototype.assignStack = function(stack) {
  1572.     this.stack = stack;
  1573.     stack.children.push(this);
  1574. };
  1575.  
  1576. NodeContainer.prototype.isElementVisible = function() {
  1577.     return this.node.nodeType === Node.TEXT_NODE ? this.parent.visible : (
  1578.         this.css('display') !== "none" &&
  1579.         this.css('visibility') !== "hidden" &&
  1580.         !this.node.hasAttribute("data-html2canvas-ignore") &&
  1581.         (this.node.nodeName !== "INPUT" || this.node.getAttribute("type") !== "hidden")
  1582.     );
  1583. };
  1584.  
  1585. NodeContainer.prototype.css = function(attribute) {
  1586.     if (!this.computedStyles) {
  1587.         this.computedStyles = this.isPseudoElement ? this.parent.computedStyle(this.before ? ":before" : ":after") : this.computedStyle(null);
  1588.     }
  1589.  
  1590.     return this.styles[attribute] || (this.styles[attribute] = this.computedStyles[attribute]);
  1591. };
  1592.  
  1593. NodeContainer.prototype.prefixedCss = function(attribute) {
  1594.     var prefixes = ["webkit", "moz", "ms", "o"];
  1595.     var value = this.css(attribute);
  1596.     if (value === undefined) {
  1597.         prefixes.some(function(prefix) {
  1598.             value = this.css(prefix + attribute.substr(0, 1).toUpperCase() + attribute.substr(1));
  1599.             return value !== undefined;
  1600.         }, this);
  1601.     }
  1602.     return value === undefined ? null : value;
  1603. };
  1604.  
  1605. NodeContainer.prototype.computedStyle = function(type) {
  1606.     return this.node.ownerDocument.defaultView.getComputedStyle(this.node, type);
  1607. };
  1608.  
  1609. NodeContainer.prototype.cssInt = function(attribute) {
  1610.     var value = parseInt(this.css(attribute), 10);
  1611.     return (isNaN(value)) ? 0 : value; // borders in old IE are throwing 'medium' for demo.html
  1612. };
  1613.  
  1614. NodeContainer.prototype.color = function(attribute) {
  1615.     return this.colors[attribute] || (this.colors[attribute] = new Color(this.css(attribute)));
  1616. };
  1617.  
  1618. NodeContainer.prototype.cssFloat = function(attribute) {
  1619.     var value = parseFloat(this.css(attribute));
  1620.     return (isNaN(value)) ? 0 : value;
  1621. };
  1622.  
  1623. NodeContainer.prototype.fontWeight = function() {
  1624.     var weight = this.css("fontWeight");
  1625.     switch(parseInt(weight, 10)){
  1626.     case 401:
  1627.         weight = "bold";
  1628.         break;
  1629.     case 400:
  1630.         weight = "normal";
  1631.         break;
  1632.     }
  1633.     return weight;
  1634. };
  1635.  
  1636. NodeContainer.prototype.parseClip = function() {
  1637.     var matches = this.css('clip').match(this.CLIP);
  1638.     if (matches) {
  1639.         return {
  1640.             top: parseInt(matches[1], 10),
  1641.             right: parseInt(matches[2], 10),
  1642.             bottom: parseInt(matches[3], 10),
  1643.             left: parseInt(matches[4], 10)
  1644.         };
  1645.     }
  1646.     return null;
  1647. };
  1648.  
  1649. NodeContainer.prototype.parseBackgroundImages = function() {
  1650.     return this.backgroundImages || (this.backgroundImages = parseBackgrounds(this.css("backgroundImage")));
  1651. };
  1652.  
  1653. NodeContainer.prototype.cssList = function(property, index) {
  1654.     var value = (this.css(property) || '').split(',');
  1655.     value = value[index || 0] || value[0] || 'auto';
  1656.     value = value.trim().split(' ');
  1657.     if (value.length === 1) {
  1658.         value = [value[0], isPercentage(value[0]) ? 'auto' : value[0]];
  1659.     }
  1660.     return value;
  1661. };
  1662.  
  1663. NodeContainer.prototype.parseBackgroundSize = function(bounds, image, index) {
  1664.     var size = this.cssList("backgroundSize", index);
  1665.     var width, height;
  1666.  
  1667.     if (isPercentage(size[0])) {
  1668.         width = bounds.width * parseFloat(size[0]) / 100;
  1669.     } else if (/contain|cover/.test(size[0])) {
  1670.         var targetRatio = bounds.width / bounds.height, currentRatio = image.width / image.height;
  1671.         return (targetRatio < currentRatio ^ size[0] === 'contain') ?  {width: bounds.height * currentRatio, height: bounds.height} : {width: bounds.width, height: bounds.width / currentRatio};
  1672.     } else {
  1673.         width = parseInt(size[0], 10);
  1674.     }
  1675.  
  1676.     if (size[0] === 'auto' && size[1] === 'auto') {
  1677.         height = image.height;
  1678.     } else if (size[1] === 'auto') {
  1679.         height = width / image.width * image.height;
  1680.     } else if (isPercentage(size[1])) {
  1681.         height =  bounds.height * parseFloat(size[1]) / 100;
  1682.     } else {
  1683.         height = parseInt(size[1], 10);
  1684.     }
  1685.  
  1686.     if (size[0] === 'auto') {
  1687.         width = height / image.height * image.width;
  1688.     }
  1689.  
  1690.     return {width: width, height: height};
  1691. };
  1692.  
  1693. NodeContainer.prototype.parseBackgroundPosition = function(bounds, image, index, backgroundSize) {
  1694.     var position = this.cssList('backgroundPosition', index);
  1695.     var left, top;
  1696.  
  1697.     if (isPercentage(position[0])){
  1698.         left = (bounds.width - (backgroundSize || image).width) * (parseFloat(position[0]) / 100);
  1699.     } else {
  1700.         left = parseInt(position[0], 10);
  1701.     }
  1702.  
  1703.     if (position[1] === 'auto') {
  1704.         top = left / image.width * image.height;
  1705.     } else if (isPercentage(position[1])){
  1706.         top =  (bounds.height - (backgroundSize || image).height) * parseFloat(position[1]) / 100;
  1707.     } else {
  1708.         top = parseInt(position[1], 10);
  1709.     }
  1710.  
  1711.     if (position[0] === 'auto') {
  1712.         left = top / image.height * image.width;
  1713.     }
  1714.  
  1715.     return {left: left, top: top};
  1716. };
  1717.  
  1718. NodeContainer.prototype.parseBackgroundRepeat = function(index) {
  1719.     return this.cssList("backgroundRepeat", index)[0];
  1720. };
  1721.  
  1722. NodeContainer.prototype.parseTextShadows = function() {
  1723.     var textShadow = this.css("textShadow");
  1724.     var results = [];
  1725.  
  1726.     if (textShadow && textShadow !== 'none') {
  1727.         var shadows = textShadow.match(this.TEXT_SHADOW_PROPERTY);
  1728.         for (var i = 0; shadows && (i < shadows.length); i++) {
  1729.             var s = shadows[i].match(this.TEXT_SHADOW_VALUES);
  1730.             results.push({
  1731.                 color: new Color(s[0]),
  1732.                 offsetX: s[1] ? parseFloat(s[1].replace('px', '')) : 0,
  1733.                 offsetY: s[2] ? parseFloat(s[2].replace('px', '')) : 0,
  1734.                 blur: s[3] ? s[3].replace('px', '') : 0
  1735.             });
  1736.         }
  1737.     }
  1738.     return results;
  1739. };
  1740.  
  1741. NodeContainer.prototype.parseTransform = function() {
  1742.     if (!this.transformData) {
  1743.         if (this.hasTransform()) {
  1744.             var offset = this.parseBounds();
  1745.             var origin = this.prefixedCss("transformOrigin").split(" ").map(removePx).map(asFloat);
  1746.             origin[0] += offset.left;
  1747.             origin[1] += offset.top;
  1748.             this.transformData = {
  1749.                 origin: origin,
  1750.                 matrix: this.parseTransformMatrix()
  1751.             };
  1752.         } else {
  1753.             this.transformData = {
  1754.                 origin: [0, 0],
  1755.                 matrix: [1, 0, 0, 1, 0, 0]
  1756.             };
  1757.         }
  1758.     }
  1759.     return this.transformData;
  1760. };
  1761.  
  1762. NodeContainer.prototype.parseTransformMatrix = function() {
  1763.     if (!this.transformMatrix) {
  1764.         var transform = this.prefixedCss("transform");
  1765.         var matrix = transform ? parseMatrix(transform.match(this.MATRIX_PROPERTY)) : null;
  1766.         this.transformMatrix = matrix ? matrix : [1, 0, 0, 1, 0, 0];
  1767.     }
  1768.     return this.transformMatrix;
  1769. };
  1770.  
  1771. NodeContainer.prototype.parseBounds = function() {
  1772.     return this.bounds || (this.bounds = this.hasTransform() ? offsetBounds(this.node) : getBounds(this.node));
  1773. };
  1774.  
  1775. NodeContainer.prototype.hasTransform = function() {
  1776.     return this.parseTransformMatrix().join(",") !== "1,0,0,1,0,0" || (this.parent && this.parent.hasTransform());
  1777. };
  1778.  
  1779. NodeContainer.prototype.getValue = function() {
  1780.     var value = this.node.value || "";
  1781.     if (this.node.tagName === "SELECT") {
  1782.         value = selectionValue(this.node);
  1783.     } else if (this.node.type === "password") {
  1784.         value = Array(value.length + 1).join('\u2022'); // jshint ignore:line
  1785.     }
  1786.     return value.length === 0 ? (this.node.placeholder || "") : value;
  1787. };
  1788.  
  1789. NodeContainer.prototype.MATRIX_PROPERTY = /(matrix|matrix3d)\((.+)\)/;
  1790. NodeContainer.prototype.TEXT_SHADOW_PROPERTY = /((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;
  1791. NodeContainer.prototype.TEXT_SHADOW_VALUES = /(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;
  1792. NodeContainer.prototype.CLIP = /^rect\((\d+)px,? (\d+)px,? (\d+)px,? (\d+)px\)$/;
  1793.  
  1794. function selectionValue(node) {
  1795.     var option = node.options[node.selectedIndex || 0];
  1796.     return option ? (option.text || "") : "";
  1797. }
  1798.  
  1799. function parseMatrix(match) {
  1800.     if (match && match[1] === "matrix") {
  1801.         return match[2].split(",").map(function(s) {
  1802.             return parseFloat(s.trim());
  1803.         });
  1804.     } else if (match && match[1] === "matrix3d") {
  1805.         var matrix3d = match[2].split(",").map(function(s) {
  1806.           return parseFloat(s.trim());
  1807.         });
  1808.         return [matrix3d[0], matrix3d[1], matrix3d[4], matrix3d[5], matrix3d[12], matrix3d[13]];
  1809.     }
  1810. }
  1811.  
  1812. function isPercentage(value) {
  1813.     return value.toString().indexOf("%") !== -1;
  1814. }
  1815.  
  1816. function removePx(str) {
  1817.     return str.replace("px", "");
  1818. }
  1819.  
  1820. function asFloat(str) {
  1821.     return parseFloat(str);
  1822. }
  1823.  
  1824. module.exports = NodeContainer;
  1825.  
  1826. },{"./color":3,"./utils":26}],15:[function(require,module,exports){
  1827. var log = require('./log');
  1828. var punycode = require('punycode');
  1829. var NodeContainer = require('./nodecontainer');
  1830. var TextContainer = require('./textcontainer');
  1831. var PseudoElementContainer = require('./pseudoelementcontainer');
  1832. var FontMetrics = require('./fontmetrics');
  1833. var Color = require('./color');
  1834. var StackingContext = require('./stackingcontext');
  1835. var utils = require('./utils');
  1836. var bind = utils.bind;
  1837. var getBounds = utils.getBounds;
  1838. var parseBackgrounds = utils.parseBackgrounds;
  1839. var offsetBounds = utils.offsetBounds;
  1840.  
  1841. function NodeParser(element, renderer, support, imageLoader, options) {
  1842.     log("Starting NodeParser");
  1843.     this.renderer = renderer;
  1844.     this.options = options;
  1845.     this.range = null;
  1846.     this.support = support;
  1847.     this.renderQueue = [];
  1848.     this.stack = new StackingContext(true, 1, element.ownerDocument, null);
  1849.     var parent = new NodeContainer(element, null);
  1850.     if (options.background) {
  1851.         renderer.rectangle(0, 0, renderer.width, renderer.height, new Color(options.background));
  1852.     }
  1853.     if (element === element.ownerDocument.documentElement) {
  1854.         // http://www.w3.org/TR/css3-background/#special-backgrounds
  1855.         var canvasBackground = new NodeContainer(parent.color('backgroundColor').isTransparent() ? element.ownerDocument.body : element.ownerDocument.documentElement, null);
  1856.         renderer.rectangle(0, 0, renderer.width, renderer.height, canvasBackground.color('backgroundColor'));
  1857.     }
  1858.     parent.visibile = parent.isElementVisible();
  1859.     this.createPseudoHideStyles(element.ownerDocument);
  1860.     this.disableAnimations(element.ownerDocument);
  1861.     this.nodes = flatten([parent].concat(this.getChildren(parent)).filter(function(container) {
  1862.         return container.visible = container.isElementVisible();
  1863.     }).map(this.getPseudoElements, this));
  1864.     this.fontMetrics = new FontMetrics();
  1865.     log("Fetched nodes, total:", this.nodes.length);
  1866.     log("Calculate overflow clips");
  1867.     this.calculateOverflowClips();
  1868.     log("Start fetching images");
  1869.     this.images = imageLoader.fetch(this.nodes.filter(isElement));
  1870.     this.ready = this.images.ready.then(bind(function() {
  1871.         log("Images loaded, starting parsing");
  1872.         log("Creating stacking contexts");
  1873.         this.createStackingContexts();
  1874.         log("Sorting stacking contexts");
  1875.         this.sortStackingContexts(this.stack);
  1876.         this.parse(this.stack);
  1877.         log("Render queue created with " + this.renderQueue.length + " items");
  1878.         return new Promise(bind(function(resolve) {
  1879.             if (!options.async) {
  1880.                 this.renderQueue.forEach(this.paint, this);
  1881.                 resolve();
  1882.             } else if (typeof(options.async) === "function") {
  1883.                 options.async.call(this, this.renderQueue, resolve);
  1884.             } else if (this.renderQueue.length > 0){
  1885.                 this.renderIndex = 0;
  1886.                 this.asyncRenderer(this.renderQueue, resolve);
  1887.             } else {
  1888.                 resolve();
  1889.             }
  1890.         }, this));
  1891.     }, this));
  1892. }
  1893.  
  1894. NodeParser.prototype.calculateOverflowClips = function() {
  1895.     this.nodes.forEach(function(container) {
  1896.         if (isElement(container)) {
  1897.             if (isPseudoElement(container)) {
  1898.                 container.appendToDOM();
  1899.             }
  1900.             container.borders = this.parseBorders(container);
  1901.             var clip = (container.css('overflow') === "hidden") ? [container.borders.clip] : [];
  1902.             var cssClip = container.parseClip();
  1903.             if (cssClip && ["absolute", "fixed"].indexOf(container.css('position')) !== -1) {
  1904.                 clip.push([["rect",
  1905.                         container.bounds.left + cssClip.left,
  1906.                         container.bounds.top + cssClip.top,
  1907.                         cssClip.right - cssClip.left,
  1908.                         cssClip.bottom - cssClip.top
  1909.                 ]]);
  1910.             }
  1911.             container.clip = hasParentClip(container) ? container.parent.clip.concat(clip) : clip;
  1912.             container.backgroundClip = (container.css('overflow') !== "hidden") ? container.clip.concat([container.borders.clip]) : container.clip;
  1913.             if (isPseudoElement(container)) {
  1914.                 container.cleanDOM();
  1915.             }
  1916.         } else if (isTextNode(container)) {
  1917.             container.clip = hasParentClip(container) ? container.parent.clip : [];
  1918.         }
  1919.         if (!isPseudoElement(container)) {
  1920.             container.bounds = null;
  1921.         }
  1922.     }, this);
  1923. };
  1924.  
  1925. function hasParentClip(container) {
  1926.     return container.parent && container.parent.clip.length;
  1927. }
  1928.  
  1929. NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
  1930.     asyncTimer = asyncTimer || Date.now();
  1931.     this.paint(queue[this.renderIndex++]);
  1932.     if (queue.length === this.renderIndex) {
  1933.         resolve();
  1934.     } else if (asyncTimer + 20 > Date.now()) {
  1935.         this.asyncRenderer(queue, resolve, asyncTimer);
  1936.     } else {
  1937.         setTimeout(bind(function() {
  1938.             this.asyncRenderer(queue, resolve);
  1939.         }, this), 0);
  1940.     }
  1941. };
  1942.  
  1943. NodeParser.prototype.createPseudoHideStyles = function(document) {
  1944.     this.createStyles(document, '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + ':before { content: "" !important; display: none !important; }' +
  1945.         '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER + ':after { content: "" !important; display: none !important; }');
  1946. };
  1947.  
  1948. NodeParser.prototype.disableAnimations = function(document) {
  1949.     this.createStyles(document, '* { -webkit-animation: none !important; -moz-animation: none !important; -o-animation: none !important; animation: none !important; ' +
  1950.         '-webkit-transition: none !important; -moz-transition: none !important; -o-transition: none !important; transition: none !important;}');
  1951. };
  1952.  
  1953. NodeParser.prototype.createStyles = function(document, styles) {
  1954.     var hidePseudoElements = document.createElement('style');
  1955.     hidePseudoElements.innerHTML = styles;
  1956.     document.body.appendChild(hidePseudoElements);
  1957. };
  1958.  
  1959. NodeParser.prototype.getPseudoElements = function(container) {
  1960.     var nodes = [[container]];
  1961.     if (container.node.nodeType === Node.ELEMENT_NODE) {
  1962.         var before = this.getPseudoElement(container, ":before");
  1963.         var after = this.getPseudoElement(container, ":after");
  1964.  
  1965.         if (before) {
  1966.             nodes.push(before);
  1967.         }
  1968.  
  1969.         if (after) {
  1970.             nodes.push(after);
  1971.         }
  1972.     }
  1973.     return flatten(nodes);
  1974. };
  1975.  
  1976. function toCamelCase(str) {
  1977.     return str.replace(/(\-[a-z])/g, function(match){
  1978.         return match.toUpperCase().replace('-','');
  1979.     });
  1980. }
  1981.  
  1982. NodeParser.prototype.getPseudoElement = function(container, type) {
  1983.     var style = container.computedStyle(type);
  1984.     if(!style || !style.content || style.content === "none" || style.content === "-moz-alt-content" || style.display === "none") {
  1985.         return null;
  1986.     }
  1987.  
  1988.     var content = stripQuotes(style.content);
  1989.     var isImage = content.substr(0, 3) === 'url';
  1990.     var pseudoNode = document.createElement(isImage ? 'img' : 'html2canvaspseudoelement');
  1991.     var pseudoContainer = new PseudoElementContainer(pseudoNode, container, type);
  1992.  
  1993.     for (var i = style.length-1; i >= 0; i--) {
  1994.         var property = toCamelCase(style.item(i));
  1995.         pseudoNode.style[property] = style[property];
  1996.     }
  1997.  
  1998.     pseudoNode.className = PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + " " + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER;
  1999.  
  2000.     if (isImage) {
  2001.         pseudoNode.src = parseBackgrounds(content)[0].args[0];
  2002.         return [pseudoContainer];
  2003.     } else {
  2004.         var text = document.createTextNode(content);
  2005.         pseudoNode.appendChild(text);
  2006.         return [pseudoContainer, new TextContainer(text, pseudoContainer)];
  2007.     }
  2008. };
  2009.  
  2010.  
  2011. NodeParser.prototype.getChildren = function(parentContainer) {
  2012.     return flatten([].filter.call(parentContainer.node.childNodes, renderableNode).map(function(node) {
  2013.         var container = [node.nodeType === Node.TEXT_NODE ? new TextContainer(node, parentContainer) : new NodeContainer(node, parentContainer)].filter(nonIgnoredElement);
  2014.         return node.nodeType === Node.ELEMENT_NODE && container.length && node.tagName !== "TEXTAREA" ? (container[0].isElementVisible() ? container.concat(this.getChildren(container[0])) : []) : container;
  2015.     }, this));
  2016. };
  2017.  
  2018. NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
  2019.     var stack = new StackingContext(hasOwnStacking, container.getOpacity(), container.node, container.parent);
  2020.     container.cloneTo(stack);
  2021.     var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
  2022.     parentStack.contexts.push(stack);
  2023.     container.stack = stack;
  2024. };
  2025.  
  2026. NodeParser.prototype.createStackingContexts = function() {
  2027.     this.nodes.forEach(function(container) {
  2028.         if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container) || container.hasTransform())) {
  2029.             this.newStackingContext(container, true);
  2030.         } else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
  2031.             this.newStackingContext(container, false);
  2032.         } else {
  2033.             container.assignStack(container.parent.stack);
  2034.         }
  2035.     }, this);
  2036. };
  2037.  
  2038. NodeParser.prototype.isBodyWithTransparentRoot = function(container) {
  2039.     return container.node.nodeName === "BODY" && container.parent.color('backgroundColor').isTransparent();
  2040. };
  2041.  
  2042. NodeParser.prototype.isRootElement = function(container) {
  2043.     return container.parent === null;
  2044. };
  2045.  
  2046. NodeParser.prototype.sortStackingContexts = function(stack) {
  2047.     stack.contexts.sort(zIndexSort(stack.contexts.slice(0)));
  2048.     stack.contexts.forEach(this.sortStackingContexts, this);
  2049. };
  2050.  
  2051. NodeParser.prototype.parseTextBounds = function(container) {
  2052.     return function(text, index, textList) {
  2053.         if (container.parent.css("textDecoration").substr(0, 4) !== "none" || text.trim().length !== 0) {
  2054.             if (this.support.rangeBounds && !container.parent.hasTransform()) {
  2055.                 var offset = textList.slice(0, index).join("").length;
  2056.                 return this.getRangeBounds(container.node, offset, text.length);
  2057.             } else if (container.node && typeof(container.node.data) === "string") {
  2058.                 var replacementNode = container.node.splitText(text.length);
  2059.                 var bounds = this.getWrapperBounds(container.node, container.parent.hasTransform());
  2060.                 container.node = replacementNode;
  2061.                 return bounds;
  2062.             }
  2063.         } else if(!this.support.rangeBounds || container.parent.hasTransform()){
  2064.             container.node = container.node.splitText(text.length);
  2065.         }
  2066.         return {};
  2067.     };
  2068. };
  2069.  
  2070. NodeParser.prototype.getWrapperBounds = function(node, transform) {
  2071.     var wrapper = node.ownerDocument.createElement('html2canvaswrapper');
  2072.     var parent = node.parentNode,
  2073.         backupText = node.cloneNode(true);
  2074.  
  2075.     wrapper.appendChild(node.cloneNode(true));
  2076.     parent.replaceChild(wrapper, node);
  2077.     var bounds = transform ? offsetBounds(wrapper) : getBounds(wrapper);
  2078.     parent.replaceChild(backupText, wrapper);
  2079.     return bounds;
  2080. };
  2081.  
  2082. NodeParser.prototype.getRangeBounds = function(node, offset, length) {
  2083.     var range = this.range || (this.range = node.ownerDocument.createRange());
  2084.     range.setStart(node, offset);
  2085.     range.setEnd(node, offset + length);
  2086.     return range.getBoundingClientRect();
  2087. };
  2088.  
  2089. function ClearTransform() {}
  2090.  
  2091. NodeParser.prototype.parse = function(stack) {
  2092.     // http://www.w3.org/TR/CSS21/visuren.html#z-index
  2093.     var negativeZindex = stack.contexts.filter(negativeZIndex); // 2. the child stacking contexts with negative stack levels (most negative first).
  2094.     var descendantElements = stack.children.filter(isElement);
  2095.     var descendantNonFloats = descendantElements.filter(not(isFloating));
  2096.     var nonInlineNonPositionedDescendants = descendantNonFloats.filter(not(isPositioned)).filter(not(inlineLevel)); // 3 the in-flow, non-inline-level, non-positioned descendants.
  2097.     var nonPositionedFloats = descendantElements.filter(not(isPositioned)).filter(isFloating); // 4. the non-positioned floats.
  2098.     var inFlow = descendantNonFloats.filter(not(isPositioned)).filter(inlineLevel); // 5. the in-flow, inline-level, non-positioned descendants, including inline tables and inline blocks.
  2099.     var stackLevel0 = stack.contexts.concat(descendantNonFloats.filter(isPositioned)).filter(zIndex0); // 6. the child stacking contexts with stack level 0 and the positioned descendants with stack level 0.
  2100.     var text = stack.children.filter(isTextNode).filter(hasText);
  2101.     var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
  2102.     negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
  2103.         .concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
  2104.             this.renderQueue.push(container);
  2105.             if (isStackingContext(container)) {
  2106.                 this.parse(container);
  2107.                 this.renderQueue.push(new ClearTransform());
  2108.             }
  2109.         }, this);
  2110. };
  2111.  
  2112. NodeParser.prototype.paint = function(container) {
  2113.     try {
  2114.         if (container instanceof ClearTransform) {
  2115.             this.renderer.ctx.restore();
  2116.         } else if (isTextNode(container)) {
  2117.             if (isPseudoElement(container.parent)) {
  2118.                 container.parent.appendToDOM();
  2119.             }
  2120.             this.paintText(container);
  2121.             if (isPseudoElement(container.parent)) {
  2122.                 container.parent.cleanDOM();
  2123.             }
  2124.         } else {
  2125.             this.paintNode(container);
  2126.         }
  2127.     } catch(e) {
  2128.         log(e);
  2129.         if (this.options.strict) {
  2130.             throw e;
  2131.         }
  2132.     }
  2133. };
  2134.  
  2135. NodeParser.prototype.paintNode = function(container) {
  2136.     if (isStackingContext(container)) {
  2137.         this.renderer.setOpacity(container.opacity);
  2138.         this.renderer.ctx.save();
  2139.         if (container.hasTransform()) {
  2140.             this.renderer.setTransform(container.parseTransform());
  2141.         }
  2142.     }
  2143.  
  2144.     if (container.node.nodeName === "INPUT" && container.node.type === "checkbox") {
  2145.         this.paintCheckbox(container);
  2146.     } else if (container.node.nodeName === "INPUT" && container.node.type === "radio") {
  2147.         this.paintRadio(container);
  2148.     } else {
  2149.         this.paintElement(container);
  2150.     }
  2151. };
  2152.  
  2153. NodeParser.prototype.paintElement = function(container) {
  2154.     var bounds = container.parseBounds();
  2155.     this.renderer.clip(container.backgroundClip, function() {
  2156.         this.renderer.renderBackground(container, bounds, container.borders.borders.map(getWidth));
  2157.     }, this);
  2158.  
  2159.     this.renderer.clip(container.clip, function() {
  2160.         this.renderer.renderBorders(container.borders.borders);
  2161.     }, this);
  2162.  
  2163.     this.renderer.clip(container.backgroundClip, function() {
  2164.         switch (container.node.nodeName) {
  2165.         case "svg":
  2166.         case "IFRAME":
  2167.             var imgContainer = this.images.get(container.node);
  2168.             if (imgContainer) {
  2169.                 this.renderer.renderImage(container, bounds, container.borders, imgContainer);
  2170.             } else {
  2171.                 log("Error loading <" + container.node.nodeName + ">", container.node);
  2172.             }
  2173.             break;
  2174.         case "IMG":
  2175.             var imageContainer = this.images.get(container.node.src);
  2176.             if (imageContainer) {
  2177.                 this.renderer.renderImage(container, bounds, container.borders, imageContainer);
  2178.             } else {
  2179.                 log("Error loading <img>", container.node.src);
  2180.             }
  2181.             break;
  2182.         case "CANVAS":
  2183.             this.renderer.renderImage(container, bounds, container.borders, {image: container.node});
  2184.             break;
  2185.         case "SELECT":
  2186.         case "INPUT":
  2187.         case "TEXTAREA":
  2188.             this.paintFormValue(container);
  2189.             break;
  2190.         }
  2191.     }, this);
  2192. };
  2193.  
  2194. NodeParser.prototype.paintCheckbox = function(container) {
  2195.     var b = container.parseBounds();
  2196.  
  2197.     var size = Math.min(b.width, b.height);
  2198.     var bounds = {width: size - 1, height: size - 1, top: b.top, left: b.left};
  2199.     var r = [3, 3];
  2200.     var radius = [r, r, r, r];
  2201.     var borders = [1,1,1,1].map(function(w) {
  2202.         return {color: new Color('#A5A5A5'), width: w};
  2203.     });
  2204.  
  2205.     var borderPoints = calculateCurvePoints(bounds, radius, borders);
  2206.  
  2207.     this.renderer.clip(container.backgroundClip, function() {
  2208.         this.renderer.rectangle(bounds.left + 1, bounds.top + 1, bounds.width - 2, bounds.height - 2, new Color("#DEDEDE"));
  2209.         this.renderer.renderBorders(calculateBorders(borders, bounds, borderPoints, radius));
  2210.         if (container.node.checked) {
  2211.             this.renderer.font(new Color('#424242'), 'normal', 'normal', 'bold', (size - 3) + "px", 'arial');
  2212.             this.renderer.text("\u2714", bounds.left + size / 6, bounds.top + size - 1);
  2213.         }
  2214.     }, this);
  2215. };
  2216.  
  2217. NodeParser.prototype.paintRadio = function(container) {
  2218.     var bounds = container.parseBounds();
  2219.  
  2220.     var size = Math.min(bounds.width, bounds.height) - 2;
  2221.  
  2222.     this.renderer.clip(container.backgroundClip, function() {
  2223.         this.renderer.circleStroke(bounds.left + 1, bounds.top + 1, size, new Color('#DEDEDE'), 1, new Color('#A5A5A5'));
  2224.         if (container.node.checked) {
  2225.             this.renderer.circle(Math.ceil(bounds.left + size / 4) + 1, Math.ceil(bounds.top + size / 4) + 1, Math.floor(size / 2), new Color('#424242'));
  2226.         }
  2227.     }, this);
  2228. };
  2229.  
  2230. NodeParser.prototype.paintFormValue = function(container) {
  2231.     var value = container.getValue();
  2232.     if (value.length > 0) {
  2233.         var document = container.node.ownerDocument;
  2234.         var wrapper = document.createElement('html2canvaswrapper');
  2235.         var properties = ['lineHeight', 'textAlign', 'fontFamily', 'fontWeight', 'fontSize', 'color',
  2236.             'paddingLeft', 'paddingTop', 'paddingRight', 'paddingBottom',
  2237.             'width', 'height', 'borderLeftStyle', 'borderTopStyle', 'borderLeftWidth', 'borderTopWidth',
  2238.             'boxSizing', 'whiteSpace', 'wordWrap'];
  2239.  
  2240.         properties.forEach(function(property) {
  2241.             try {
  2242.                 wrapper.style[property] = container.css(property);
  2243.             } catch(e) {
  2244.                 // Older IE has issues with "border"
  2245.                 log("html2canvas: Parse: Exception caught in renderFormValue: " + e.message);
  2246.             }
  2247.         });
  2248.         var bounds = container.parseBounds();
  2249.         wrapper.style.position = "fixed";
  2250.         wrapper.style.left = bounds.left + "px";
  2251.         wrapper.style.top = bounds.top + "px";
  2252.         wrapper.textContent = value;
  2253.         document.body.appendChild(wrapper);
  2254.         this.paintText(new TextContainer(wrapper.firstChild, container));
  2255.         document.body.removeChild(wrapper);
  2256.     }
  2257. };
  2258.  
  2259. NodeParser.prototype.paintText = function(container) {
  2260.     container.applyTextTransform();
  2261.     var characters = punycode.ucs2.decode(container.node.data);
  2262.     var textList = (!this.options.letterRendering || noLetterSpacing(container)) && !hasUnicode(container.node.data) ? getWords(characters) : characters.map(function(character) {
  2263.         return punycode.ucs2.encode([character]);
  2264.     });
  2265.  
  2266.     var weight = container.parent.fontWeight();
  2267.     var size = container.parent.css('fontSize');
  2268.     var family = container.parent.css('fontFamily');
  2269.     var shadows = container.parent.parseTextShadows();
  2270.  
  2271.     this.renderer.font(container.parent.color('color'), container.parent.css('fontStyle'), container.parent.css('fontVariant'), weight, size, family);
  2272.     if (shadows.length) {
  2273.         // TODO: support multiple text shadows
  2274.         this.renderer.fontShadow(shadows[0].color, shadows[0].offsetX, shadows[0].offsetY, shadows[0].blur);
  2275.     } else {
  2276.         this.renderer.clearShadow();
  2277.     }
  2278.  
  2279.     this.renderer.clip(container.parent.clip, function() {
  2280.         textList.map(this.parseTextBounds(container), this).forEach(function(bounds, index) {
  2281.             if (bounds) {
  2282.                 this.renderer.text(textList[index], bounds.left, bounds.bottom);
  2283.                 this.renderTextDecoration(container.parent, bounds, this.fontMetrics.getMetrics(family, size));
  2284.             }
  2285.         }, this);
  2286.     }, this);
  2287. };
  2288.  
  2289. NodeParser.prototype.renderTextDecoration = function(container, bounds, metrics) {
  2290.     switch(container.css("textDecoration").split(" ")[0]) {
  2291.     case "underline":
  2292.         // Draws a line at the baseline of the font
  2293.         // 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 size
  2294.         this.renderer.rectangle(bounds.left, Math.round(bounds.top + metrics.baseline + metrics.lineWidth), bounds.width, 1, container.color("color"));
  2295.         break;
  2296.     case "overline":
  2297.         this.renderer.rectangle(bounds.left, Math.round(bounds.top), bounds.width, 1, container.color("color"));
  2298.         break;
  2299.     case "line-through":
  2300.         // TODO try and find exact position for line-through
  2301.         this.renderer.rectangle(bounds.left, Math.ceil(bounds.top + metrics.middle + metrics.lineWidth), bounds.width, 1, container.color("color"));
  2302.         break;
  2303.     }
  2304. };
  2305.  
  2306. var borderColorTransforms = {
  2307.     inset: [
  2308.         ["darken", 0.60],
  2309.         ["darken", 0.10],
  2310.         ["darken", 0.10],
  2311.         ["darken", 0.60]
  2312.     ]
  2313. };
  2314.  
  2315. NodeParser.prototype.parseBorders = function(container) {
  2316.     var nodeBounds = container.parseBounds();
  2317.     var radius = getBorderRadiusData(container);
  2318.     var borders = ["Top", "Right", "Bottom", "Left"].map(function(side, index) {
  2319.         var style = container.css('border' + side + 'Style');
  2320.         var color = container.color('border' + side + 'Color');
  2321.         if (style === "inset" && color.isBlack()) {
  2322.             color = new Color([255, 255, 255, color.a]); // this is wrong, but
  2323.         }
  2324.         var colorTransform = borderColorTransforms[style] ? borderColorTransforms[style][index] : null;
  2325.         return {
  2326.             width: container.cssInt('border' + side + 'Width'),
  2327.             color: colorTransform ? color[colorTransform[0]](colorTransform[1]) : color,
  2328.             args: null
  2329.         };
  2330.     });
  2331.     var borderPoints = calculateCurvePoints(nodeBounds, radius, borders);
  2332.  
  2333.     return {
  2334.         clip: this.parseBackgroundClip(container, borderPoints, borders, radius, nodeBounds),
  2335.         borders: calculateBorders(borders, nodeBounds, borderPoints, radius)
  2336.     };
  2337. };
  2338.  
  2339. function calculateBorders(borders, nodeBounds, borderPoints, radius) {
  2340.     return borders.map(function(border, borderSide) {
  2341.         if (border.width > 0) {
  2342.             var bx = nodeBounds.left;
  2343.             var by = nodeBounds.top;
  2344.             var bw = nodeBounds.width;
  2345.             var bh = nodeBounds.height - (borders[2].width);
  2346.  
  2347.             switch(borderSide) {
  2348.             case 0:
  2349.                 // top border
  2350.                 bh = borders[0].width;
  2351.                 border.args = drawSide({
  2352.                         c1: [bx, by],
  2353.                         c2: [bx + bw, by],
  2354.                         c3: [bx + bw - borders[1].width, by + bh],
  2355.                         c4: [bx + borders[3].width, by + bh]
  2356.                     }, radius[0], radius[1],
  2357.                     borderPoints.topLeftOuter, borderPoints.topLeftInner, borderPoints.topRightOuter, borderPoints.topRightInner);
  2358.                 break;
  2359.             case 1:
  2360.                 // right border
  2361.                 bx = nodeBounds.left + nodeBounds.width - (borders[1].width);
  2362.                 bw = borders[1].width;
  2363.  
  2364.                 border.args = drawSide({
  2365.                         c1: [bx + bw, by],
  2366.                         c2: [bx + bw, by + bh + borders[2].width],
  2367.                         c3: [bx, by + bh],
  2368.                         c4: [bx, by + borders[0].width]
  2369.                     }, radius[1], radius[2],
  2370.                     borderPoints.topRightOuter, borderPoints.topRightInner, borderPoints.bottomRightOuter, borderPoints.bottomRightInner);
  2371.                 break;
  2372.             case 2:
  2373.                 // bottom border
  2374.                 by = (by + nodeBounds.height) - (borders[2].width);
  2375.                 bh = borders[2].width;
  2376.                 border.args = drawSide({
  2377.                         c1: [bx + bw, by + bh],
  2378.                         c2: [bx, by + bh],
  2379.                         c3: [bx + borders[3].width, by],
  2380.                         c4: [bx + bw - borders[3].width, by]
  2381.                     }, radius[2], radius[3],
  2382.                     borderPoints.bottomRightOuter, borderPoints.bottomRightInner, borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner);
  2383.                 break;
  2384.             case 3:
  2385.                 // left border
  2386.                 bw = borders[3].width;
  2387.                 border.args = drawSide({
  2388.                         c1: [bx, by + bh + borders[2].width],
  2389.                         c2: [bx, by],
  2390.                         c3: [bx + bw, by + borders[0].width],
  2391.                         c4: [bx + bw, by + bh]
  2392.                     }, radius[3], radius[0],
  2393.                     borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner, borderPoints.topLeftOuter, borderPoints.topLeftInner);
  2394.                 break;
  2395.             }
  2396.         }
  2397.         return border;
  2398.     });
  2399. }
  2400.  
  2401. NodeParser.prototype.parseBackgroundClip = function(container, borderPoints, borders, radius, bounds) {
  2402.     var backgroundClip = container.css('backgroundClip'),
  2403.         borderArgs = [];
  2404.  
  2405.     switch(backgroundClip) {
  2406.     case "content-box":
  2407.     case "padding-box":
  2408.         parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftInner, borderPoints.topRightInner, bounds.left + borders[3].width, bounds.top + borders[0].width);
  2409.         parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightInner, borderPoints.bottomRightInner, bounds.left + bounds.width - borders[1].width, bounds.top + borders[0].width);
  2410.         parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightInner, borderPoints.bottomLeftInner, bounds.left + bounds.width - borders[1].width, bounds.top + bounds.height - borders[2].width);
  2411.         parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftInner, borderPoints.topLeftInner, bounds.left + borders[3].width, bounds.top + bounds.height - borders[2].width);
  2412.         break;
  2413.  
  2414.     default:
  2415.         parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftOuter, borderPoints.topRightOuter, bounds.left, bounds.top);
  2416.         parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightOuter, borderPoints.bottomRightOuter, bounds.left + bounds.width, bounds.top);
  2417.         parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightOuter, borderPoints.bottomLeftOuter, bounds.left + bounds.width, bounds.top + bounds.height);
  2418.         parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftOuter, borderPoints.topLeftOuter, bounds.left, bounds.top + bounds.height);
  2419.         break;
  2420.     }
  2421.  
  2422.     return borderArgs;
  2423. };
  2424.  
  2425. function getCurvePoints(x, y, r1, r2) {
  2426.     var kappa = 4 * ((Math.sqrt(2) - 1) / 3);
  2427.     var ox = (r1) * kappa, // control point offset horizontal
  2428.         oy = (r2) * kappa, // control point offset vertical
  2429.         xm = x + r1, // x-middle
  2430.         ym = y + r2; // y-middle
  2431.     return {
  2432.         topLeft: bezierCurve({x: x, y: ym}, {x: x, y: ym - oy}, {x: xm - ox, y: y}, {x: xm, y: y}),
  2433.         topRight: bezierCurve({x: x, y: y}, {x: x + ox,y: y}, {x: xm, y: ym - oy}, {x: xm, y: ym}),
  2434.         bottomRight: bezierCurve({x: xm, y: y}, {x: xm, y: y + oy}, {x: x + ox, y: ym}, {x: x, y: ym}),
  2435.         bottomLeft: bezierCurve({x: xm, y: ym}, {x: xm - ox, y: ym}, {x: x, y: y + oy}, {x: x, y:y})
  2436.     };
  2437. }
  2438.  
  2439. function calculateCurvePoints(bounds, borderRadius, borders) {
  2440.     var x = bounds.left,
  2441.         y = bounds.top,
  2442.         width = bounds.width,
  2443.         height = bounds.height,
  2444.  
  2445.         tlh = borderRadius[0][0] < width / 2 ? borderRadius[0][0] : width / 2,
  2446.         tlv = borderRadius[0][1] < height / 2 ? borderRadius[0][1] : height / 2,
  2447.         trh = borderRadius[1][0] < width / 2 ? borderRadius[1][0] : width / 2,
  2448.         trv = borderRadius[1][1] < height / 2 ? borderRadius[1][1] : height / 2,
  2449.         brh = borderRadius[2][0] < width / 2 ? borderRadius[2][0] : width / 2,
  2450.         brv = borderRadius[2][1] < height / 2 ? borderRadius[2][1] : height / 2,
  2451.         blh = borderRadius[3][0] < width / 2 ? borderRadius[3][0] : width / 2,
  2452.         blv = borderRadius[3][1] < height / 2 ? borderRadius[3][1] : height / 2;
  2453.  
  2454.     var topWidth = width - trh,
  2455.         rightHeight = height - brv,
  2456.         bottomWidth = width - brh,
  2457.         leftHeight = height - blv;
  2458.  
  2459.     return {
  2460.         topLeftOuter: getCurvePoints(x, y, tlh, tlv).topLeft.subdivide(0.5),
  2461.         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),
  2462.         topRightOuter: getCurvePoints(x + topWidth, y, trh, trv).topRight.subdivide(0.5),
  2463.         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),
  2464.         bottomRightOuter: getCurvePoints(x + bottomWidth, y + rightHeight, brh, brv).bottomRight.subdivide(0.5),
  2465.         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),  brv - borders[2].width).bottomRight.subdivide(0.5),
  2466.         bottomLeftOuter: getCurvePoints(x, y + leftHeight, blh, blv).bottomLeft.subdivide(0.5),
  2467.         bottomLeftInner: getCurvePoints(x + borders[3].width, y + leftHeight, Math.max(0, blh - borders[3].width), blv - borders[2].width).bottomLeft.subdivide(0.5)
  2468.     };
  2469. }
  2470.  
  2471. function bezierCurve(start, startControl, endControl, end) {
  2472.     var lerp = function (a, b, t) {
  2473.         return {
  2474.             x: a.x + (b.x - a.x) * t,
  2475.             y: a.y + (b.y - a.y) * t
  2476.         };
  2477.     };
  2478.  
  2479.     return {
  2480.         start: start,
  2481.         startControl: startControl,
  2482.         endControl: endControl,
  2483.         end: end,
  2484.         subdivide: function(t) {
  2485.             var ab = lerp(start, startControl, t),
  2486.                 bc = lerp(startControl, endControl, t),
  2487.                 cd = lerp(endControl, end, t),
  2488.                 abbc = lerp(ab, bc, t),
  2489.                 bccd = lerp(bc, cd, t),
  2490.                 dest = lerp(abbc, bccd, t);
  2491.             return [bezierCurve(start, ab, abbc, dest), bezierCurve(dest, bccd, cd, end)];
  2492.         },
  2493.         curveTo: function(borderArgs) {
  2494.             borderArgs.push(["bezierCurve", startControl.x, startControl.y, endControl.x, endControl.y, end.x, end.y]);
  2495.         },
  2496.         curveToReversed: function(borderArgs) {
  2497.             borderArgs.push(["bezierCurve", endControl.x, endControl.y, startControl.x, startControl.y, start.x, start.y]);
  2498.         }
  2499.     };
  2500. }
  2501.  
  2502. function drawSide(borderData, radius1, radius2, outer1, inner1, outer2, inner2) {
  2503.     var borderArgs = [];
  2504.  
  2505.     if (radius1[0] > 0 || radius1[1] > 0) {
  2506.         borderArgs.push(["line", outer1[1].start.x, outer1[1].start.y]);
  2507.         outer1[1].curveTo(borderArgs);
  2508.     } else {
  2509.         borderArgs.push([ "line", borderData.c1[0], borderData.c1[1]]);
  2510.     }
  2511.  
  2512.     if (radius2[0] > 0 || radius2[1] > 0) {
  2513.         borderArgs.push(["line", outer2[0].start.x, outer2[0].start.y]);
  2514.         outer2[0].curveTo(borderArgs);
  2515.         borderArgs.push(["line", inner2[0].end.x, inner2[0].end.y]);
  2516.         inner2[0].curveToReversed(borderArgs);
  2517.     } else {
  2518.         borderArgs.push(["line", borderData.c2[0], borderData.c2[1]]);
  2519.         borderArgs.push(["line", borderData.c3[0], borderData.c3[1]]);
  2520.     }
  2521.  
  2522.     if (radius1[0] > 0 || radius1[1] > 0) {
  2523.         borderArgs.push(["line", inner1[1].end.x, inner1[1].end.y]);
  2524.         inner1[1].curveToReversed(borderArgs);
  2525.     } else {
  2526.         borderArgs.push(["line", borderData.c4[0], borderData.c4[1]]);
  2527.     }
  2528.  
  2529.     return borderArgs;
  2530. }
  2531.  
  2532. function parseCorner(borderArgs, radius1, radius2, corner1, corner2, x, y) {
  2533.     if (radius1[0] > 0 || radius1[1] > 0) {
  2534.         borderArgs.push(["line", corner1[0].start.x, corner1[0].start.y]);
  2535.         corner1[0].curveTo(borderArgs);
  2536.         corner1[1].curveTo(borderArgs);
  2537.     } else {
  2538.         borderArgs.push(["line", x, y]);
  2539.     }
  2540.  
  2541.     if (radius2[0] > 0 || radius2[1] > 0) {
  2542.         borderArgs.push(["line", corner2[0].start.x, corner2[0].start.y]);
  2543.     }
  2544. }
  2545.  
  2546. function negativeZIndex(container) {
  2547.     return container.cssInt("zIndex") < 0;
  2548. }
  2549.  
  2550. function positiveZIndex(container) {
  2551.     return container.cssInt("zIndex") > 0;
  2552. }
  2553.  
  2554. function zIndex0(container) {
  2555.     return container.cssInt("zIndex") === 0;
  2556. }
  2557.  
  2558. function inlineLevel(container) {
  2559.     return ["inline", "inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
  2560. }
  2561.  
  2562. function isStackingContext(container) {
  2563.     return (container instanceof StackingContext);
  2564. }
  2565.  
  2566. function hasText(container) {
  2567.     return container.node.data.trim().length > 0;
  2568. }
  2569.  
  2570. function noLetterSpacing(container) {
  2571.     return (/^(normal|none|0px)$/.test(container.parent.css("letterSpacing")));
  2572. }
  2573.  
  2574. function getBorderRadiusData(container) {
  2575.     return ["TopLeft", "TopRight", "BottomRight", "BottomLeft"].map(function(side) {
  2576.         var value = container.css('border' + side + 'Radius');
  2577.         var arr = value.split(" ");
  2578.         if (arr.length <= 1) {
  2579.             arr[1] = arr[0];
  2580.         }
  2581.         return arr.map(asInt);
  2582.     });
  2583. }
  2584.  
  2585. function renderableNode(node) {
  2586.     return (node.nodeType === Node.TEXT_NODE || node.nodeType === Node.ELEMENT_NODE);
  2587. }
  2588.  
  2589. function isPositionedForStacking(container) {
  2590.     var position = container.css("position");
  2591.     var zIndex = (["absolute", "relative", "fixed"].indexOf(position) !== -1) ? container.css("zIndex") : "auto";
  2592.     return zIndex !== "auto";
  2593. }
  2594.  
  2595. function isPositioned(container) {
  2596.     return container.css("position") !== "static";
  2597. }
  2598.  
  2599. function isFloating(container) {
  2600.     return container.css("float") !== "none";
  2601. }
  2602.  
  2603. function isInlineBlock(container) {
  2604.     return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
  2605. }
  2606.  
  2607. function not(callback) {
  2608.     var context = this;
  2609.     return function() {
  2610.         return !callback.apply(context, arguments);
  2611.     };
  2612. }
  2613.  
  2614. function isElement(container) {
  2615.     return container.node.nodeType === Node.ELEMENT_NODE;
  2616. }
  2617.  
  2618. function isPseudoElement(container) {
  2619.     return container.isPseudoElement === true;
  2620. }
  2621.  
  2622. function isTextNode(container) {
  2623.     return container.node.nodeType === Node.TEXT_NODE;
  2624. }
  2625.  
  2626. function zIndexSort(contexts) {
  2627.     return function(a, b) {
  2628.         return (a.cssInt("zIndex") + (contexts.indexOf(a) / contexts.length)) - (b.cssInt("zIndex") + (contexts.indexOf(b) / contexts.length));
  2629.     };
  2630. }
  2631.  
  2632. function hasOpacity(container) {
  2633.     return container.getOpacity() < 1;
  2634. }
  2635.  
  2636. function asInt(value) {
  2637.     return parseInt(value, 10);
  2638. }
  2639.  
  2640. function getWidth(border) {
  2641.     return border.width;
  2642. }
  2643.  
  2644. function nonIgnoredElement(nodeContainer) {
  2645.     return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR", "OPTION"].indexOf(nodeContainer.node.nodeName) === -1);
  2646. }
  2647.  
  2648. function flatten(arrays) {
  2649.     return [].concat.apply([], arrays);
  2650. }
  2651.  
  2652. function stripQuotes(content) {
  2653.     var first = content.substr(0, 1);
  2654.     return (first === content.substr(content.length - 1) && first.match(/'|"/)) ? content.substr(1, content.length - 2) : content;
  2655. }
  2656.  
  2657. function getWords(characters) {
  2658.     var words = [], i = 0, onWordBoundary = false, word;
  2659.     while(characters.length) {
  2660.         if (isWordBoundary(characters[i]) === onWordBoundary) {
  2661.             word = characters.splice(0, i);
  2662.             if (word.length) {
  2663.                 words.push(punycode.ucs2.encode(word));
  2664.             }
  2665.             onWordBoundary =! onWordBoundary;
  2666.             i = 0;
  2667.         } else {
  2668.             i++;
  2669.         }
  2670.  
  2671.         if (i >= characters.length) {
  2672.             word = characters.splice(0, i);
  2673.             if (word.length) {
  2674.                 words.push(punycode.ucs2.encode(word));
  2675.             }
  2676.         }
  2677.     }
  2678.     return words;
  2679. }
  2680.  
  2681. function isWordBoundary(characterCode) {
  2682.     return [
  2683.         32, // <space>
  2684.         13, // \r
  2685.         10, // \n
  2686.         9, // \t
  2687.         45 // -
  2688.     ].indexOf(characterCode) !== -1;
  2689. }
  2690.  
  2691. function hasUnicode(string) {
  2692.     return (/[^\u0000-\u00ff]/).test(string);
  2693. }
  2694.  
  2695. module.exports = NodeParser;
  2696.  
  2697. },{"./color":3,"./fontmetrics":7,"./log":13,"./nodecontainer":14,"./pseudoelementcontainer":18,"./stackingcontext":21,"./textcontainer":25,"./utils":26,"punycode":1}],16:[function(require,module,exports){
  2698. var XHR = require('./xhr');
  2699. var utils = require('./utils');
  2700. var log = require('./log');
  2701. var createWindowClone = require('./clone');
  2702. var decode64 = utils.decode64;
  2703.  
  2704. function Proxy(src, proxyUrl, document) {
  2705.     var supportsCORS = ('withCredentials' in new XMLHttpRequest());
  2706.     if (!proxyUrl) {
  2707.         return Promise.reject("No proxy configured");
  2708.     }
  2709.     var callback = createCallback(supportsCORS);
  2710.     var url = createProxyUrl(proxyUrl, src, callback);
  2711.  
  2712.     return supportsCORS ? XHR(url) : (jsonp(document, url, callback).then(function(response) {
  2713.         return decode64(response.content);
  2714.     }));
  2715. }
  2716. var proxyCount = 0;
  2717.  
  2718. function ProxyURL(src, proxyUrl, document) {
  2719.     var supportsCORSImage = ('crossOrigin' in new Image()) && !window.GM_PROXY;
  2720.     var callback = createCallback(supportsCORSImage);
  2721.     var url = createProxyUrl(proxyUrl, src, callback);
  2722.     return (supportsCORSImage ? Promise.resolve(url) : jsonp(document, url, callback).then(function(response) {
  2723.         return "data:" + response.type + ";base64," + response.content;
  2724.     }));
  2725. }
  2726.  
  2727. function jsonp(document, url, callback) {
  2728.     if (!window.html2canvas.proxy) {
  2729.         window.html2canvas.proxy = {};
  2730.     }
  2731.  
  2732.     return new Promise(function(resolve, reject) {
  2733.         var s = document.createElement("script");
  2734.         var cleanup = function() {
  2735.             delete window.html2canvas.proxy[callback];
  2736.             document.body.removeChild(s);
  2737.         };
  2738.         window.html2canvas.proxy[callback] = function(response) {
  2739.             cleanup();
  2740.             resolve(response);
  2741.         };
  2742.         s.src = url;
  2743.         s.onerror = function(e) {
  2744.             cleanup();
  2745.             reject(e);
  2746.         };
  2747.         document.body.appendChild(s);
  2748.     });
  2749. }
  2750.  
  2751. function createCallback(useCORS) {
  2752.     return !useCORS ? "html2canvas_" + Date.now() + "_" + (++proxyCount) + "_" + Math.round(Math.random() * 100000) : "";
  2753. }
  2754.  
  2755. function createProxyUrl(proxyUrl, src, callback) {
  2756.     return proxyUrl + "?url=" + encodeURIComponent(src) + (callback.length ? "&callback=html2canvas.proxy." + callback : "");
  2757. }
  2758.  
  2759. function documentFromHTML(src) {
  2760.     return function(html) {
  2761.         var parser = new DOMParser(), doc;
  2762.         try {
  2763.             doc = parser.parseFromString(html, "text/html");
  2764.         } catch(e) {
  2765.             log("DOMParser not supported, falling back to createHTMLDocument");
  2766.             doc = document.implementation.createHTMLDocument("");
  2767.             try {
  2768.                 doc.open();
  2769.                 doc.write(html);
  2770.                 doc.close();
  2771.             } catch(ee) {
  2772.                 log("createHTMLDocument write not supported, falling back to document.body.innerHTML");
  2773.                 doc.body.innerHTML = html; // ie9 doesnt support writing to documentElement
  2774.             }
  2775.         }
  2776.  
  2777.         var b = doc.querySelector("base");
  2778.         if (!b || !b.href.host) {
  2779.             var base = doc.createElement("base");
  2780.             base.href = src;
  2781.             doc.head.insertBefore(base, doc.head.firstChild);
  2782.         }
  2783.  
  2784.         return doc;
  2785.     };
  2786. }
  2787.  
  2788. function loadUrlDocument(src, proxy, document, width, height, options) {
  2789.     return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
  2790.         return createWindowClone(doc, document, width, height, options, 0, 0);
  2791.     });
  2792. }
  2793.  
  2794. exports.Proxy = Proxy;
  2795. exports.ProxyURL = ProxyURL;
  2796. exports.loadUrlDocument = loadUrlDocument;
  2797.  
  2798. },{"./clone":2,"./log":13,"./utils":26,"./xhr":28}],17:[function(require,module,exports){
  2799. var ProxyURL = require('./proxy').ProxyURL;
  2800.  
  2801. function ProxyImageContainer(src, proxy) {
  2802.     var link = document.createElement("a");
  2803.     link.href = src;
  2804.     src = link.href;
  2805.     this.src = src;
  2806.     this.image = new Image();
  2807.     var self = this;
  2808.     this.promise = new Promise(function(resolve, reject) {
  2809.         self.image.crossOrigin = "Anonymous";
  2810.         self.image.onload = resolve;
  2811.         self.image.onerror = reject;
  2812.  
  2813.         new ProxyURL(src, proxy, document).then(function(url) {
  2814.             self.image.src = url;
  2815.         })['catch'](reject);
  2816.     });
  2817. }
  2818.  
  2819. module.exports = ProxyImageContainer;
  2820.  
  2821. },{"./proxy":16}],18:[function(require,module,exports){
  2822. var NodeContainer = require('./nodecontainer');
  2823.  
  2824. function PseudoElementContainer(node, parent, type) {
  2825.     NodeContainer.call(this, node, parent);
  2826.     this.isPseudoElement = true;
  2827.     this.before = type === ":before";
  2828. }
  2829.  
  2830. PseudoElementContainer.prototype.cloneTo = function(stack) {
  2831.     PseudoElementContainer.prototype.cloneTo.call(this, stack);
  2832.     stack.isPseudoElement = true;
  2833.     stack.before = this.before;
  2834. };
  2835.  
  2836. PseudoElementContainer.prototype = Object.create(NodeContainer.prototype);
  2837.  
  2838. PseudoElementContainer.prototype.appendToDOM = function() {
  2839.     if (this.before) {
  2840.         this.parent.node.insertBefore(this.node, this.parent.node.firstChild);
  2841.     } else {
  2842.         this.parent.node.appendChild(this.node);
  2843.     }
  2844.     this.parent.node.className += " " + this.getHideClass();
  2845. };
  2846.  
  2847. PseudoElementContainer.prototype.cleanDOM = function() {
  2848.     this.node.parentNode.removeChild(this.node);
  2849.     this.parent.node.className = this.parent.node.className.replace(this.getHideClass(), "");
  2850. };
  2851.  
  2852. PseudoElementContainer.prototype.getHideClass = function() {
  2853.     return this["PSEUDO_HIDE_ELEMENT_CLASS_" + (this.before ? "BEFORE" : "AFTER")];
  2854. };
  2855.  
  2856. PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE = "___html2canvas___pseudoelement_before";
  2857. PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER = "___html2canvas___pseudoelement_after";
  2858.  
  2859. module.exports = PseudoElementContainer;
  2860.  
  2861. },{"./nodecontainer":14}],19:[function(require,module,exports){
  2862. var log = require('./log');
  2863.  
  2864. function Renderer(width, height, images, options, document) {
  2865.     this.width = width;
  2866.     this.height = height;
  2867.     this.images = images;
  2868.     this.options = options;
  2869.     this.document = document;
  2870. }
  2871.  
  2872. Renderer.prototype.renderImage = function(container, bounds, borderData, imageContainer) {
  2873.     var paddingLeft = container.cssInt('paddingLeft'),
  2874.         paddingTop = container.cssInt('paddingTop'),
  2875.         paddingRight = container.cssInt('paddingRight'),
  2876.         paddingBottom = container.cssInt('paddingBottom'),
  2877.         borders = borderData.borders;
  2878.  
  2879.     var width = bounds.width - (borders[1].width + borders[3].width + paddingLeft + paddingRight);
  2880.     var height = bounds.height - (borders[0].width + borders[2].width + paddingTop + paddingBottom);
  2881.     this.drawImage(
  2882.         imageContainer,
  2883.         0,
  2884.         0,
  2885.         imageContainer.image.width || width,
  2886.         imageContainer.image.height || height,
  2887.         bounds.left + paddingLeft + borders[3].width,
  2888.         bounds.top + paddingTop + borders[0].width,
  2889.         width,
  2890.         height
  2891.     );
  2892. };
  2893.  
  2894. Renderer.prototype.renderBackground = function(container, bounds, borderData) {
  2895.     if (bounds.height > 0 && bounds.width > 0) {
  2896.         this.renderBackgroundColor(container, bounds);
  2897.         this.renderBackgroundImage(container, bounds, borderData);
  2898.     }
  2899. };
  2900.  
  2901. Renderer.prototype.renderBackgroundColor = function(container, bounds) {
  2902.     var color = container.color("backgroundColor");
  2903.     if (!color.isTransparent()) {
  2904.         this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, color);
  2905.     }
  2906. };
  2907.  
  2908. Renderer.prototype.renderBorders = function(borders) {
  2909.     borders.forEach(this.renderBorder, this);
  2910. };
  2911.  
  2912. Renderer.prototype.renderBorder = function(data) {
  2913.     if (!data.color.isTransparent() && data.args !== null) {
  2914.         this.drawShape(data.args, data.color);
  2915.     }
  2916. };
  2917.  
  2918. Renderer.prototype.renderBackgroundImage = function(container, bounds, borderData) {
  2919.     var backgroundImages = container.parseBackgroundImages();
  2920.     backgroundImages.reverse().forEach(function(backgroundImage, index, arr) {
  2921.         switch(backgroundImage.method) {
  2922.         case "url":
  2923.             var image = this.images.get(backgroundImage.args[0]);
  2924.             if (image) {
  2925.                 this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1), borderData);
  2926.             } else {
  2927.                 log("Error loading background-image", backgroundImage.args[0]);
  2928.             }
  2929.             break;
  2930.         case "linear-gradient":
  2931.         case "gradient":
  2932.             var gradientImage = this.images.get(backgroundImage.value);
  2933.             if (gradientImage) {
  2934.                 this.renderBackgroundGradient(gradientImage, bounds, borderData);
  2935.             } else {
  2936.                 log("Error loading background-image", backgroundImage.args[0]);
  2937.             }
  2938.             break;
  2939.         case "none":
  2940.             break;
  2941.         default:
  2942.             log("Unknown background-image type", backgroundImage.args[0]);
  2943.         }
  2944.     }, this);
  2945. };
  2946.  
  2947. Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index, borderData) {
  2948.     var size = container.parseBackgroundSize(bounds, imageContainer.image, index);
  2949.     var position = container.parseBackgroundPosition(bounds, imageContainer.image, index, size);
  2950.     var repeat = container.parseBackgroundRepeat(index);
  2951.     switch (repeat) {
  2952.     case "repeat-x":
  2953.     case "repeat no-repeat":
  2954.         this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + borderData[3], bounds.top + position.top + borderData[0], 99999, size.height, borderData);
  2955.         break;
  2956.     case "repeat-y":
  2957.     case "no-repeat repeat":
  2958.         this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + borderData[0], size.width, 99999, borderData);
  2959.         break;
  2960.     case "no-repeat":
  2961.         this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + position.top + borderData[0], size.width, size.height, borderData);
  2962.         break;
  2963.     default:
  2964.         this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left}, borderData[3], borderData[0]);
  2965.         break;
  2966.     }
  2967. };
  2968.  
  2969. module.exports = Renderer;
  2970.  
  2971. },{"./log":13}],20:[function(require,module,exports){
  2972. var Renderer = require('../renderer');
  2973. var LinearGradientContainer = require('../lineargradientcontainer');
  2974. var log = require('../log');
  2975.  
  2976. function CanvasRenderer(width, height) {
  2977.     Renderer.apply(this, arguments);
  2978.     this.canvas = this.options.canvas || this.document.createElement("canvas");
  2979.     if (!this.options.canvas) {
  2980.         this.canvas.width = width;
  2981.         this.canvas.height = height;
  2982.     }
  2983.     this.ctx = this.canvas.getContext("2d");
  2984.     this.taintCtx = this.document.createElement("canvas").getContext("2d");
  2985.     this.ctx.textBaseline = "bottom";
  2986.     this.variables = {};
  2987.     log("Initialized CanvasRenderer with size", width, "x", height);
  2988. }
  2989.  
  2990. CanvasRenderer.prototype = Object.create(Renderer.prototype);
  2991.  
  2992. CanvasRenderer.prototype.setFillStyle = function(fillStyle) {
  2993.     this.ctx.fillStyle = typeof(fillStyle) === "object" && !!fillStyle.isColor ? fillStyle.toString() : fillStyle;
  2994.     return this.ctx;
  2995. };
  2996.  
  2997. CanvasRenderer.prototype.rectangle = function(left, top, width, height, color) {
  2998.     this.setFillStyle(color).fillRect(left, top, width, height);
  2999. };
  3000.  
  3001. CanvasRenderer.prototype.circle = function(left, top, size, color) {
  3002.     this.setFillStyle(color);
  3003.     this.ctx.beginPath();
  3004.     this.ctx.arc(left + size / 2, top + size / 2, size / 2, 0, Math.PI*2, true);
  3005.     this.ctx.closePath();
  3006.     this.ctx.fill();
  3007. };
  3008.  
  3009. CanvasRenderer.prototype.circleStroke = function(left, top, size, color, stroke, strokeColor) {
  3010.     this.circle(left, top, size, color);
  3011.     this.ctx.strokeStyle = strokeColor.toString();
  3012.     this.ctx.stroke();
  3013. };
  3014.  
  3015. CanvasRenderer.prototype.drawShape = function(shape, color) {
  3016.     this.shape(shape);
  3017.     this.setFillStyle(color).fill();
  3018. };
  3019.  
  3020. CanvasRenderer.prototype.taints = function(imageContainer) {
  3021.     if (imageContainer.tainted === null) {
  3022.         this.taintCtx.drawImage(imageContainer.image, 0, 0);
  3023.         try {
  3024.             this.taintCtx.getImageData(0, 0, 1, 1);
  3025.             imageContainer.tainted = false;
  3026.         } catch(e) {
  3027.             this.taintCtx = document.createElement("canvas").getContext("2d");
  3028.             imageContainer.tainted = true;
  3029.         }
  3030.     }
  3031.  
  3032.     return imageContainer.tainted;
  3033. };
  3034.  
  3035. CanvasRenderer.prototype.drawImage = function(imageContainer, sx, sy, sw, sh, dx, dy, dw, dh) {
  3036.     if (!this.taints(imageContainer) || this.options.allowTaint) {
  3037.         this.ctx.drawImage(imageContainer.image, sx, sy, sw, sh, dx, dy, dw, dh);
  3038.     }
  3039. };
  3040.  
  3041. CanvasRenderer.prototype.clip = function(shapes, callback, context) {
  3042.     this.ctx.save();
  3043.     shapes.filter(hasEntries).forEach(function(shape) {
  3044.         this.shape(shape).clip();
  3045.     }, this);
  3046.     callback.call(context);
  3047.     this.ctx.restore();
  3048. };
  3049.  
  3050. CanvasRenderer.prototype.shape = function(shape) {
  3051.     this.ctx.beginPath();
  3052.     shape.forEach(function(point, index) {
  3053.         if (point[0] === "rect") {
  3054.             this.ctx.rect.apply(this.ctx, point.slice(1));
  3055.         } else {
  3056.             this.ctx[(index === 0) ? "moveTo" : point[0] + "To" ].apply(this.ctx, point.slice(1));
  3057.         }
  3058.     }, this);
  3059.     this.ctx.closePath();
  3060.     return this.ctx;
  3061. };
  3062.  
  3063. CanvasRenderer.prototype.font = function(color, style, variant, weight, size, family) {
  3064.     this.setFillStyle(color).font = [style, variant, weight, size, family].join(" ").split(",")[0];
  3065. };
  3066.  
  3067. CanvasRenderer.prototype.fontShadow = function(color, offsetX, offsetY, blur) {
  3068.     this.setVariable("shadowColor", color.toString())
  3069.         .setVariable("shadowOffsetY", offsetX)
  3070.         .setVariable("shadowOffsetX", offsetY)
  3071.         .setVariable("shadowBlur", blur);
  3072. };
  3073.  
  3074. CanvasRenderer.prototype.clearShadow = function() {
  3075.     this.setVariable("shadowColor", "rgba(0,0,0,0)");
  3076. };
  3077.  
  3078. CanvasRenderer.prototype.setOpacity = function(opacity) {
  3079.     this.ctx.globalAlpha = opacity;
  3080. };
  3081.  
  3082. CanvasRenderer.prototype.setTransform = function(transform) {
  3083.     this.ctx.translate(transform.origin[0], transform.origin[1]);
  3084.     this.ctx.transform.apply(this.ctx, transform.matrix);
  3085.     this.ctx.translate(-transform.origin[0], -transform.origin[1]);
  3086. };
  3087.  
  3088. CanvasRenderer.prototype.setVariable = function(property, value) {
  3089.     if (this.variables[property] !== value) {
  3090.         this.variables[property] = this.ctx[property] = value;
  3091.     }
  3092.  
  3093.     return this;
  3094. };
  3095.  
  3096. CanvasRenderer.prototype.text = function(text, left, bottom) {
  3097.     this.ctx.fillText(text, left, bottom);
  3098. };
  3099.  
  3100. CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height, borderData) {
  3101.     var shape = [
  3102.         ["line", Math.round(left), Math.round(top)],
  3103.         ["line", Math.round(left + width), Math.round(top)],
  3104.         ["line", Math.round(left + width), Math.round(height + top)],
  3105.         ["line", Math.round(left), Math.round(height + top)]
  3106.     ];
  3107.     this.clip([shape], function() {
  3108.         this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds, borderData[3], borderData[0]);
  3109.     }, this);
  3110. };
  3111.  
  3112. CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds, borderLeft, borderTop) {
  3113.     var offsetX = Math.round(bounds.left + backgroundPosition.left + borderLeft), offsetY = Math.round(bounds.top + backgroundPosition.top + borderTop);
  3114.     this.setFillStyle(this.ctx.createPattern(this.resizeImage(imageContainer, size), "repeat"));
  3115.     this.ctx.translate(offsetX, offsetY);
  3116.     this.ctx.fill();
  3117.     this.ctx.translate(-offsetX, -offsetY);
  3118. };
  3119.  
  3120. CanvasRenderer.prototype.renderBackgroundGradient = function(gradientImage, bounds) {
  3121.     if (gradientImage instanceof LinearGradientContainer) {
  3122.         var gradient = this.ctx.createLinearGradient(
  3123.             bounds.left + bounds.width * gradientImage.x0,
  3124.             bounds.top + bounds.height * gradientImage.y0,
  3125.             bounds.left +  bounds.width * gradientImage.x1,
  3126.             bounds.top +  bounds.height * gradientImage.y1);
  3127.         gradientImage.colorStops.forEach(function(colorStop) {
  3128.             gradient.addColorStop(colorStop.stop, colorStop.color.toString());
  3129.         });
  3130.         this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, gradient);
  3131.     }
  3132. };
  3133.  
  3134. CanvasRenderer.prototype.resizeImage = function(imageContainer, size) {
  3135.     var image = imageContainer.image;
  3136.     if(image.width === size.width && image.height === size.height) {
  3137.         return image;
  3138.     }
  3139.  
  3140.     var ctx, canvas = document.createElement('canvas');
  3141.     canvas.width = size.width;
  3142.     canvas.height = size.height;
  3143.     ctx = canvas.getContext("2d");
  3144.     ctx.drawImage(image, 0, 0, image.width, image.height, 0, 0, size.width, size.height );
  3145.     return canvas;
  3146. };
  3147.  
  3148. function hasEntries(array) {
  3149.     return array.length > 0;
  3150. }
  3151.  
  3152. module.exports = CanvasRenderer;
  3153.  
  3154. },{"../lineargradientcontainer":12,"../log":13,"../renderer":19}],21:[function(require,module,exports){
  3155. var NodeContainer = require('./nodecontainer');
  3156.  
  3157. function StackingContext(hasOwnStacking, opacity, element, parent) {
  3158.     NodeContainer.call(this, element, parent);
  3159.     this.ownStacking = hasOwnStacking;
  3160.     this.contexts = [];
  3161.     this.children = [];
  3162.     this.opacity = (this.parent ? this.parent.stack.opacity : 1) * opacity;
  3163. }
  3164.  
  3165. StackingContext.prototype = Object.create(NodeContainer.prototype);
  3166.  
  3167. StackingContext.prototype.getParentStack = function(context) {
  3168.     var parentStack = (this.parent) ? this.parent.stack : null;
  3169.     return parentStack ? (parentStack.ownStacking ? parentStack : parentStack.getParentStack(context)) : context.stack;
  3170. };
  3171.  
  3172. module.exports = StackingContext;
  3173.  
  3174. },{"./nodecontainer":14}],22:[function(require,module,exports){
  3175. function Support(document) {
  3176.     this.rangeBounds = this.testRangeBounds(document);
  3177.     this.cors = this.testCORS();
  3178.     this.svg = this.testSVG();
  3179. }
  3180.  
  3181. Support.prototype.testRangeBounds = function(document) {
  3182.     var range, testElement, rangeBounds, rangeHeight, support = false;
  3183.  
  3184.     if (document.createRange) {
  3185.         range = document.createRange();
  3186.         if (range.getBoundingClientRect) {
  3187.             testElement = document.createElement('boundtest');
  3188.             testElement.style.height = "123px";
  3189.             testElement.style.display = "block";
  3190.             document.body.appendChild(testElement);
  3191.  
  3192.             range.selectNode(testElement);
  3193.             rangeBounds = range.getBoundingClientRect();
  3194.             rangeHeight = rangeBounds.height;
  3195.  
  3196.             if (rangeHeight === 123) {
  3197.                 support = true;
  3198.             }
  3199.             document.body.removeChild(testElement);
  3200.         }
  3201.     }
  3202.  
  3203.     return support;
  3204. };
  3205.  
  3206. Support.prototype.testCORS = function() {
  3207.     return typeof((new Image()).crossOrigin) !== "undefined";
  3208. };
  3209.  
  3210. Support.prototype.testSVG = function() {
  3211.     var img = new Image();
  3212.     var canvas = document.createElement("canvas");
  3213.     var ctx =  canvas.getContext("2d");
  3214.     img.src = "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>";
  3215.  
  3216.     try {
  3217.         ctx.drawImage(img, 0, 0);
  3218.         canvas.toDataURL();
  3219.     } catch(e) {
  3220.         return false;
  3221.     }
  3222.     return true;
  3223. };
  3224.  
  3225. module.exports = Support;
  3226.  
  3227. },{}],23:[function(require,module,exports){
  3228. var XHR = require('./xhr');
  3229. var decode64 = require('./utils').decode64;
  3230.  
  3231. function SVGContainer(src) {
  3232.     this.src = src;
  3233.     this.image = null;
  3234.     var self = this;
  3235.  
  3236.     this.promise = this.hasFabric().then(function() {
  3237.         return (self.isInline(src) ? Promise.resolve(self.inlineFormatting(src)) : XHR(src));
  3238.     }).then(function(svg) {
  3239.         return new Promise(function(resolve) {
  3240.             window.html2canvas.svg.fabric.loadSVGFromString(svg, self.createCanvas.call(self, resolve));
  3241.         });
  3242.     });
  3243. }
  3244.  
  3245. SVGContainer.prototype.hasFabric = function() {
  3246.     return !window.html2canvas.svg || !window.html2canvas.svg.fabric ? Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg")) : Promise.resolve();
  3247. };
  3248.  
  3249. SVGContainer.prototype.inlineFormatting = function(src) {
  3250.     return (/^data:image\/svg\+xml;base64,/.test(src)) ? this.decode64(this.removeContentType(src)) : this.removeContentType(src);
  3251. };
  3252.  
  3253. SVGContainer.prototype.removeContentType = function(src) {
  3254.     return src.replace(/^data:image\/svg\+xml(;base64)?,/,'');
  3255. };
  3256.  
  3257. SVGContainer.prototype.isInline = function(src) {
  3258.     return (/^data:image\/svg\+xml/i.test(src));
  3259. };
  3260.  
  3261. SVGContainer.prototype.createCanvas = function(resolve) {
  3262.     var self = this;
  3263.     return function (objects, options) {
  3264.         var canvas = new window.html2canvas.svg.fabric.StaticCanvas('c');
  3265.         self.image = canvas.lowerCanvasEl;
  3266.         canvas
  3267.             .setWidth(options.width)
  3268.             .setHeight(options.height)
  3269.             .add(window.html2canvas.svg.fabric.util.groupSVGElements(objects, options))
  3270.             .renderAll();
  3271.         resolve(canvas.lowerCanvasEl);
  3272.     };
  3273. };
  3274.  
  3275. SVGContainer.prototype.decode64 = function(str) {
  3276.     return (typeof(window.atob) === "function") ? window.atob(str) : decode64(str);
  3277. };
  3278.  
  3279. module.exports = SVGContainer;
  3280.  
  3281. },{"./utils":26,"./xhr":28}],24:[function(require,module,exports){
  3282. var SVGContainer = require('./svgcontainer');
  3283.  
  3284. function SVGNodeContainer(node, _native) {
  3285.     this.src = node;
  3286.     this.image = null;
  3287.     var self = this;
  3288.  
  3289.     this.promise = _native ? new Promise(function(resolve, reject) {
  3290.         self.image = new Image();
  3291.         self.image.onload = resolve;
  3292.         self.image.onerror = reject;
  3293.         self.image.src = "data:image/svg+xml," + (new XMLSerializer()).serializeToString(node);
  3294.         if (self.image.complete === true) {
  3295.             resolve(self.image);
  3296.         }
  3297.     }) : this.hasFabric().then(function() {
  3298.         return new Promise(function(resolve) {
  3299.             window.html2canvas.svg.fabric.parseSVGDocument(node, self.createCanvas.call(self, resolve));
  3300.         });
  3301.     });
  3302. }
  3303.  
  3304. SVGNodeContainer.prototype = Object.create(SVGContainer.prototype);
  3305.  
  3306. module.exports = SVGNodeContainer;
  3307.  
  3308. },{"./svgcontainer":23}],25:[function(require,module,exports){
  3309. var NodeContainer = require('./nodecontainer');
  3310.  
  3311. function TextContainer(node, parent) {
  3312.     NodeContainer.call(this, node, parent);
  3313. }
  3314.  
  3315. TextContainer.prototype = Object.create(NodeContainer.prototype);
  3316.  
  3317. TextContainer.prototype.applyTextTransform = function() {
  3318.     this.node.data = this.transform(this.parent.css("textTransform"));
  3319. };
  3320.  
  3321. TextContainer.prototype.transform = function(transform) {
  3322.     var text = this.node.data;
  3323.     switch(transform){
  3324.         case "lowercase":
  3325.             return text.toLowerCase();
  3326.         case "capitalize":
  3327.             return text.replace(/(^|\s|:|-|\(|\))([a-z])/g, capitalize);
  3328.         case "uppercase":
  3329.             return text.toUpperCase();
  3330.         default:
  3331.             return text;
  3332.     }
  3333. };
  3334.  
  3335. function capitalize(m, p1, p2) {
  3336.     if (m.length > 0) {
  3337.         return p1 + p2.toUpperCase();
  3338.     }
  3339. }
  3340.  
  3341. module.exports = TextContainer;
  3342.  
  3343. },{"./nodecontainer":14}],26:[function(require,module,exports){
  3344. exports.smallImage = function smallImage() {
  3345.     return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
  3346. };
  3347.  
  3348. exports.bind = function(callback, context) {
  3349.     return function() {
  3350.         return callback.apply(context, arguments);
  3351.     };
  3352. };
  3353.  
  3354. /*
  3355.  * base64-arraybuffer
  3356.  * https://github.com/niklasvh/base64-arraybuffer
  3357.  *
  3358.  * Copyright (c) 2012 Niklas von Hertzen
  3359.  * Licensed under the MIT license.
  3360.  */
  3361.  
  3362. exports.decode64 = function(base64) {
  3363.     var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  3364.     var len = base64.length, i, encoded1, encoded2, encoded3, encoded4, byte1, byte2, byte3;
  3365.  
  3366.     var output = "";
  3367.  
  3368.     for (i = 0; i < len; i+=4) {
  3369.         encoded1 = chars.indexOf(base64[i]);
  3370.         encoded2 = chars.indexOf(base64[i+1]);
  3371.         encoded3 = chars.indexOf(base64[i+2]);
  3372.         encoded4 = chars.indexOf(base64[i+3]);
  3373.  
  3374.         byte1 = (encoded1 << 2) | (encoded2 >> 4);
  3375.         byte2 = ((encoded2 & 15) << 4) | (encoded3 >> 2);
  3376.         byte3 = ((encoded3 & 3) << 6) | encoded4;
  3377.         if (encoded3 === 64) {
  3378.             output += String.fromCharCode(byte1);
  3379.         } else if (encoded4 === 64 || encoded4 === -1) {
  3380.             output += String.fromCharCode(byte1, byte2);
  3381.         } else{
  3382.             output += String.fromCharCode(byte1, byte2, byte3);
  3383.         }
  3384.     }
  3385.  
  3386.     return output;
  3387. };
  3388.  
  3389. exports.getBounds = function(node) {
  3390.     if (node.getBoundingClientRect) {
  3391.         var clientRect = node.getBoundingClientRect();
  3392.         var width = node.offsetWidth == null ? clientRect.width : node.offsetWidth;
  3393.         return {
  3394.             top: clientRect.top,
  3395.             bottom: clientRect.bottom || (clientRect.top + clientRect.height),
  3396.             right: clientRect.left + width,
  3397.             left: clientRect.left,
  3398.             width:  width,
  3399.             height: node.offsetHeight == null ? clientRect.height : node.offsetHeight
  3400.         };
  3401.     }
  3402.     return {};
  3403. };
  3404.  
  3405. exports.offsetBounds = function(node) {
  3406.     var parent = node.offsetParent ? exports.offsetBounds(node.offsetParent) : {top: 0, left: 0};
  3407.  
  3408.     return {
  3409.         top: node.offsetTop + parent.top,
  3410.         bottom: node.offsetTop + node.offsetHeight + parent.top,
  3411.         right: node.offsetLeft + parent.left + node.offsetWidth,
  3412.         left: node.offsetLeft + parent.left,
  3413.         width: node.offsetWidth,
  3414.         height: node.offsetHeight
  3415.     };
  3416. };
  3417.  
  3418. exports.parseBackgrounds = function(backgroundImage) {
  3419.     var whitespace = ' \r\n\t',
  3420.         method, definition, prefix, prefix_i, block, results = [],
  3421.         mode = 0, numParen = 0, quote, args;
  3422.     var appendResult = function() {
  3423.         if(method) {
  3424.             if (definition.substr(0, 1) === '"') {
  3425.                 definition = definition.substr(1, definition.length - 2);
  3426.             }
  3427.             if (definition) {
  3428.                 args.push(definition);
  3429.             }
  3430.             if (method.substr(0, 1) === '-' && (prefix_i = method.indexOf('-', 1 ) + 1) > 0) {
  3431.                 prefix = method.substr(0, prefix_i);
  3432.                 method = method.substr(prefix_i);
  3433.             }
  3434.             results.push({
  3435.                 prefix: prefix,
  3436.                 method: method.toLowerCase(),
  3437.                 value: block,
  3438.                 args: args,
  3439.                 image: null
  3440.             });
  3441.         }
  3442.         args = [];
  3443.         method = prefix = definition = block = '';
  3444.     };
  3445.     args = [];
  3446.     method = prefix = definition = block = '';
  3447.     backgroundImage.split("").forEach(function(c) {
  3448.         if (mode === 0 && whitespace.indexOf(c) > -1) {
  3449.             return;
  3450.         }
  3451.         switch(c) {
  3452.         case '"':
  3453.             if(!quote) {
  3454.                 quote = c;
  3455.             } else if(quote === c) {
  3456.                 quote = null;
  3457.             }
  3458.             break;
  3459.         case '(':
  3460.             if(quote) {
  3461.                 break;
  3462.             } else if(mode === 0) {
  3463.                 mode = 1;
  3464.                 block += c;
  3465.                 return;
  3466.             } else {
  3467.                 numParen++;
  3468.             }
  3469.             break;
  3470.         case ')':
  3471.             if (quote) {
  3472.                 break;
  3473.             } else if(mode === 1) {
  3474.                 if(numParen === 0) {
  3475.                     mode = 0;
  3476.                     block += c;
  3477.                     appendResult();
  3478.                     return;
  3479.                 } else {
  3480.                     numParen--;
  3481.                 }
  3482.             }
  3483.             break;
  3484.  
  3485.         case ',':
  3486.             if (quote) {
  3487.                 break;
  3488.             } else if(mode === 0) {
  3489.                 appendResult();
  3490.                 return;
  3491.             } else if (mode === 1) {
  3492.                 if (numParen === 0 && !method.match(/^url$/i)) {
  3493.                     args.push(definition);
  3494.                     definition = '';
  3495.                     block += c;
  3496.                     return;
  3497.                 }
  3498.             }
  3499.             break;
  3500.         }
  3501.  
  3502.         block += c;
  3503.         if (mode === 0) {
  3504.             method += c;
  3505.         } else {
  3506.             definition += c;
  3507.         }
  3508.     });
  3509.  
  3510.     appendResult();
  3511.     return results;
  3512. };
  3513.  
  3514. },{}],27:[function(require,module,exports){
  3515. var GradientContainer = require('./gradientcontainer');
  3516.  
  3517. function WebkitGradientContainer(imageData) {
  3518.     GradientContainer.apply(this, arguments);
  3519.     this.type = imageData.args[0] === "linear" ? GradientContainer.TYPES.LINEAR : GradientContainer.TYPES.RADIAL;
  3520. }
  3521.  
  3522. WebkitGradientContainer.prototype = Object.create(GradientContainer.prototype);
  3523.  
  3524. module.exports = WebkitGradientContainer;
  3525.  
  3526. },{"./gradientcontainer":9}],28:[function(require,module,exports){
  3527. function XHR(url) {
  3528.     return new Promise(function(resolve, reject) {
  3529.         var xhr = new XMLHttpRequest();
  3530.         xhr.open('GET', url);
  3531.  
  3532.         xhr.onload = function() {
  3533.             if (xhr.status === 200) {
  3534.                 resolve(xhr.responseText);
  3535.             } else {
  3536.                 reject(new Error(xhr.statusText));
  3537.             }
  3538.         };
  3539.  
  3540.         xhr.onerror = function() {
  3541.             reject(new Error("Network Error"));
  3542.         };
  3543.  
  3544.         xhr.send();
  3545.     });
  3546. }
  3547.  
  3548. module.exports = XHR;
  3549.  
  3550. },{}]},{},[4])(4)
  3551. });

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