canvas实现屏幕截图

1.引入html2canvas.js

2.调用

  2.1 <script src="html2canvas.js"></script>

  2.2 定义一个div,这是需要截图的区域,<div id='map' style="height: 50%;width: 50%;top: 25%;left: 50%; "></div>

  2.3 定义一个img,把截好的图放进去<img id="aaa" style="left: 20%;top: 20%;height: 30%;width: 30%;" src="" />

  2.4 调用截图方法

            function screenCapture() {
                console.log("截屏");
                html2canvas(document.getElementById('map'), {

                }).then(canvas=>{
                    var aa = document.body.appendChild(canvas);
                    document.getElementById("aaa").src=canvas.toDataURL();
                });
            }

 

html2canvas.js文件

/*
  html2canvas 0.5.0-beta3 <http://html2canvas.hertzen.com>
  Copyright (c) 2016 Niklas von Hertzen

  Released under  License
*/

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.html2canvas=e()}}(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(_dereq_,module,exports){
        (function (global){
            /*! http://mths.be/punycode v1.2.4 by @mathias */
            ;(function(root) {

                /** Detect free variables */
                var freeExports = typeof exports == 'object' && exports;
                var freeModule = typeof module == 'object' && module &&
                    module.exports == freeExports && module;
                var freeGlobal = typeof global == 'object' && global;
                if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
                    root = freeGlobal;
                }

                /**
                 * The `punycode` object.
                 * @name punycode
                 * @type Object
                 */
                var punycode,

                    /** Highest positive signed 32-bit float value */
                    maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

                    /** Bootstring parameters */
                    base = 36,
                    tMin = 1,
                    tMax = 26,
                    skew = 38,
                    damp = 700,
                    initialBias = 72,
                    initialN = 128, // 0x80
                    delimiter = '-', // '\x2D'

                    /** Regular expressions */
                    regexPunycode = /^xn--/,
                    regexNonASCII = /[^ -~]/, // unprintable ASCII chars + non-ASCII chars
                    regexSeparators = /\x2E|\u3002|\uFF0E|\uFF61/g, // RFC 3490 separators

                    /** Error messages */
                    errors = {
                        'overflow': 'Overflow: input needs wider integers to process',
                        'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
                        'invalid-input': 'Invalid input'
                    },

                    /** Convenience shortcuts */
                    baseMinusTMin = base - tMin,
                    floor = Math.floor,
                    stringFromCharCode = String.fromCharCode,

                    /** Temporary variable */
                    key;

                /*--------------------------------------------------------------------------*/

                /**
                 * A generic error utility function.
                 * @private
                 * @param {String} type The error type.
                 * @returns {Error} Throws a `RangeError` with the applicable error message.
                 */
                function error(type) {
                    throw RangeError(errors[type]);
                }

                /**
                 * A generic `Array#map` utility function.
                 * @private
                 * @param {Array} array The array to iterate over.
                 * @param {Function} callback The function that gets called for every array
                 * item.
                 * @returns {Array} A new array of values returned by the callback function.
                 */
                function map(array, fn) {
                    var length = array.length;
                    while (length--) {
                        array[length] = fn(array[length]);
                    }
                    return array;
                }

                /**
                 * A simple `Array#map`-like wrapper to work with domain name strings.
                 * @private
                 * @param {String} domain The domain name.
                 * @param {Function} callback The function that gets called for every
                 * character.
                 * @returns {Array} A new string of characters returned by the callback
                 * function.
                 */
                function mapDomain(string, fn) {
                    return map(string.split(regexSeparators), fn).join('.');
                }

                /**
                 * Creates an array containing the numeric code points of each Unicode
                 * character in the string. While JavaScript uses UCS-2 internally,
                 * this function will convert a pair of surrogate halves (each of which
                 * UCS-2 exposes as separate characters) into a single code point,
                 * matching UTF-16.
                 * @see `punycode.ucs2.encode`
                 * @see <http://mathiasbynens.be/notes/javascript-encoding>
                 * @memberOf punycode.ucs2
                 * @name decode
                 * @param {String} string The Unicode input string (UCS-2).
                 * @returns {Array} The new array of code points.
                 */
                function ucs2decode(string) {
                    var output = [],
                        counter = 0,
                        length = string.length,
                        value,
                        extra;
                    while (counter < length) {
                        value = string.charCodeAt(counter++);
                        if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
                            // high surrogate, and there is a next character
                            extra = string.charCodeAt(counter++);
                            if ((extra & 0xFC00) == 0xDC00) { // low surrogate
                                output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
                            } else {
                                // unmatched surrogate; only append this code unit, in case the next
                                // code unit is the high surrogate of a surrogate pair
                                output.push(value);
                                counter--;
                            }
                        } else {
                            output.push(value);
                        }
                    }
                    return output;
                }

                /**
                 * Creates a string based on an array of numeric code points.
                 * @see `punycode.ucs2.decode`
                 * @memberOf punycode.ucs2
                 * @name encode
                 * @param {Array} codePoints The array of numeric code points.
                 * @returns {String} The new Unicode string (UCS-2).
                 */
                function ucs2encode(array) {
                    return map(array, function(value) {
                        var output = '';
                        if (value > 0xFFFF) {
                            value -= 0x10000;
                            output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
                            value = 0xDC00 | value & 0x3FF;
                        }
                        output += stringFromCharCode(value);
                        return output;
                    }).join('');
                }

                /**
                 * Converts a basic code point into a digit/integer.
                 * @see `digitToBasic()`
                 * @private
                 * @param {Number} codePoint The basic numeric code point value.
                 * @returns {Number} The numeric value of a basic code point (for use in
                 * representing integers) in the range `0` to `base - 1`, or `base` if
                 * the code point does not represent a value.
                 */
                function basicToDigit(codePoint) {
                    if (codePoint - 48 < 10) {
                        return codePoint - 22;
                    }
                    if (codePoint - 65 < 26) {
                        return codePoint - 65;
                    }
                    if (codePoint - 97 < 26) {
                        return codePoint - 97;
                    }
                    return base;
                }

                /**
                 * Converts a digit/integer into a basic code point.
                 * @see `basicToDigit()`
                 * @private
                 * @param {Number} digit The numeric value of a basic code point.
                 * @returns {Number} The basic code point whose value (when used for
                 * representing integers) is `digit`, which needs to be in the range
                 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
                 * used; else, the lowercase form is used. The behavior is undefined
                 * if `flag` is non-zero and `digit` has no uppercase form.
                 */
                function digitToBasic(digit, flag) {
                    //  0..25 map to ASCII a..z or A..Z
                    // 26..35 map to ASCII 0..9
                    return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
                }

                /**
                 * Bias adaptation function as per section 3.4 of RFC 3492.
                 * http://tools.ietf.org/html/rfc3492#section-3.4
                 * @private
                 */
                function adapt(delta, numPoints, firstTime) {
                    var k = 0;
                    delta = firstTime ? floor(delta / damp) : delta >> 1;
                    delta += floor(delta / numPoints);
                    for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
                        delta = floor(delta / baseMinusTMin);
                    }
                    return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
                }

                /**
                 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
                 * symbols.
                 * @memberOf punycode
                 * @param {String} input The Punycode string of ASCII-only symbols.
                 * @returns {String} The resulting string of Unicode symbols.
                 */
                function decode(input) {
                    // Don't use UCS-2
                    var output = [],
                        inputLength = input.length,
                        out,
                        i = 0,
                        n = initialN,
                        bias = initialBias,
                        basic,
                        j,
                        index,
                        oldi,
                        w,
                        k,
                        digit,
                        t,
                        /** Cached calculation results */
                        baseMinusT;

                    // Handle the basic code points: let `basic` be the number of input code
                    // points before the last delimiter, or `0` if there is none, then copy
                    // the first basic code points to the output.

                    basic = input.lastIndexOf(delimiter);
                    if (basic < 0) {
                        basic = 0;
                    }

                    for (j = 0; j < basic; ++j) {
                        // if it's not a basic code point
                        if (input.charCodeAt(j) >= 0x80) {
                            error('not-basic');
                        }
                        output.push(input.charCodeAt(j));
                    }

                    // Main decoding loop: start just after the last delimiter if any basic code
                    // points were copied; start at the beginning otherwise.

                    for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

                        // `index` is the index of the next character to be consumed.
                        // Decode a generalized variable-length integer into `delta`,
                        // which gets added to `i`. The overflow checking is easier
                        // if we increase `i` as we go, then subtract off its starting
                        // value at the end to obtain `delta`.
                        for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

                            if (index >= inputLength) {
                                error('invalid-input');
                            }

                            digit = basicToDigit(input.charCodeAt(index++));

                            if (digit >= base || digit > floor((maxInt - i) / w)) {
                                error('overflow');
                            }

                            i += digit * w;
                            t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

                            if (digit < t) {
                                break;
                            }

                            baseMinusT = base - t;
                            if (w > floor(maxInt / baseMinusT)) {
                                error('overflow');
                            }

                            w *= baseMinusT;

                        }

                        out = output.length + 1;
                        bias = adapt(i - oldi, out, oldi == 0);

                        // `i` was supposed to wrap around from `out` to `0`,
                        // incrementing `n` each time, so we'll fix that now:
                        if (floor(i / out) > maxInt - n) {
                            error('overflow');
                        }

                        n += floor(i / out);
                        i %= out;

                        // Insert `n` at position `i` of the output
                        output.splice(i++, 0, n);

                    }

                    return ucs2encode(output);
                }

                /**
                 * Converts a string of Unicode symbols to a Punycode string of ASCII-only
                 * symbols.
                 * @memberOf punycode
                 * @param {String} input The string of Unicode symbols.
                 * @returns {String} The resulting Punycode string of ASCII-only symbols.
                 */
                function encode(input) {
                    var n,
                        delta,
                        handledCPCount,
                        basicLength,
                        bias,
                        j,
                        m,
                        q,
                        k,
                        t,
                        currentValue,
                        output = [],
                        /** `inputLength` will hold the number of code points in `input`. */
                        inputLength,
                        /** Cached calculation results */
                        handledCPCountPlusOne,
                        baseMinusT,
                        qMinusT;

                    // Convert the input in UCS-2 to Unicode
                    input = ucs2decode(input);

                    // Cache the length
                    inputLength = input.length;

                    // Initialize the state
                    n = initialN;
                    delta = 0;
                    bias = initialBias;

                    // Handle the basic code points
                    for (j = 0; j < inputLength; ++j) {
                        currentValue = input[j];
                        if (currentValue < 0x80) {
                            output.push(stringFromCharCode(currentValue));
                        }
                    }

                    handledCPCount = basicLength = output.length;

                    // `handledCPCount` is the number of code points that have been handled;
                    // `basicLength` is the number of basic code points.

                    // Finish the basic string - if it is not empty - with a delimiter
                    if (basicLength) {
                        output.push(delimiter);
                    }

                    // Main encoding loop:
                    while (handledCPCount < inputLength) {

                        // All non-basic code points < n have been handled already. Find the next
                        // larger one:
                        for (m = maxInt, j = 0; j < inputLength; ++j) {
                            currentValue = input[j];
                            if (currentValue >= n && currentValue < m) {
                                m = currentValue;
                            }
                        }

                        // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
                        // but guard against overflow
                        handledCPCountPlusOne = handledCPCount + 1;
                        if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
                            error('overflow');
                        }

                        delta += (m - n) * handledCPCountPlusOne;
                        n = m;

                        for (j = 0; j < inputLength; ++j) {
                            currentValue = input[j];

                            if (currentValue < n && ++delta > maxInt) {
                                error('overflow');
                            }

                            if (currentValue == n) {
                                // Represent delta as a generalized variable-length integer
                                for (q = delta, k = base; /* no condition */; k += base) {
                                    t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
                                    if (q < t) {
                                        break;
                                    }
                                    qMinusT = q - t;
                                    baseMinusT = base - t;
                                    output.push(
                                        stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
                                    );
                                    q = floor(qMinusT / baseMinusT);
                                }

                                output.push(stringFromCharCode(digitToBasic(q, 0)));
                                bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
                                delta = 0;
                                ++handledCPCount;
                            }
                        }

                        ++delta;
                        ++n;

                    }
                    return output.join('');
                }

                /**
                 * Converts a Punycode string representing a domain name to Unicode. Only the
                 * Punycoded parts of the domain name will be converted, i.e. it doesn't
                 * matter if you call it on a string that has already been converted to
                 * Unicode.
                 * @memberOf punycode
                 * @param {String} domain The Punycode domain name to convert to Unicode.
                 * @returns {String} The Unicode representation of the given Punycode
                 * string.
                 */
                function toUnicode(domain) {
                    return mapDomain(domain, function(string) {
                        return regexPunycode.test(string)
                            ? decode(string.slice(4).toLowerCase())
                            : string;
                    });
                }

                /**
                 * Converts a Unicode string representing a domain name to Punycode. Only the
                 * non-ASCII parts of the domain name will be converted, i.e. it doesn't
                 * matter if you call it with a domain that's already in ASCII.
                 * @memberOf punycode
                 * @param {String} domain The domain name to convert, as a Unicode string.
                 * @returns {String} The Punycode representation of the given domain name.
                 */
                function toASCII(domain) {
                    return mapDomain(domain, function(string) {
                        return regexNonASCII.test(string)
                            ? 'xn--' + encode(string)
                            : string;
                    });
                }

                /*--------------------------------------------------------------------------*/

                /** Define the public API */
                punycode = {
                    /**
                     * A string representing the current Punycode.js version number.
                     * @memberOf punycode
                     * @type String
                     */
                    'version': '1.2.4',
                    /**
                     * An object of methods to convert from JavaScript's internal character
                     * representation (UCS-2) to Unicode code points, and back.
                     * @see <http://mathiasbynens.be/notes/javascript-encoding>
                     * @memberOf punycode
                     * @type Object
                     */
                    'ucs2': {
                        'decode': ucs2decode,
                        'encode': ucs2encode
                    },
                    'decode': decode,
                    'encode': encode,
                    'toASCII': toASCII,
                    'toUnicode': toUnicode
                };

                /** Expose `punycode` */
                // Some AMD build optimizers, like r.js, check for specific condition patterns
                // like the following:
                if (
                    typeof define == 'function' &&
                    typeof define.amd == 'object' &&
                    define.amd
                ) {
                    define('punycode', function() {
                        return punycode;
                    });
                } else if (freeExports && !freeExports.nodeType) {
                    if (freeModule) { // in Node.js or RingoJS v0.8.0+
                        freeModule.exports = punycode;
                    } else { // in Narwhal or RingoJS v0.7.0-
                        for (key in punycode) {
                            punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
                        }
                    }
                } else { // in Rhino or a web browser
                    root.punycode = punycode;
                }

            }(this));

        }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],2:[function(_dereq_,module,exports){
        var log = _dereq_('./log');

        function restoreOwnerScroll(ownerDocument, x, y) {
            if (ownerDocument.defaultView && (x !== ownerDocument.defaultView.pageXOffset || y !== ownerDocument.defaultView.pageYOffset)) {
                ownerDocument.defaultView.scrollTo(x, y);
            }
        }

        function cloneCanvasContents(canvas, clonedCanvas) {
            try {
                if (clonedCanvas) {
                    clonedCanvas.width = canvas.width;
                    clonedCanvas.height = canvas.height;
                    clonedCanvas.getContext("2d").putImageData(canvas.getContext("2d").getImageData(0, 0, canvas.width, canvas.height), 0, 0);
                }
            } catch(e) {
                log("Unable to copy canvas content from", canvas, e);
            }
        }

        function cloneNode(node, javascriptEnabled) {
            var clone = node.nodeType === 3 ? document.createTextNode(node.nodeValue) : node.cloneNode(false);

            var child = node.firstChild;
            while(child) {
                if (javascriptEnabled === true || child.nodeType !== 1 || child.nodeName !== 'SCRIPT') {
                    clone.appendChild(cloneNode(child, javascriptEnabled));
                }
                child = child.nextSibling;
            }

            if (node.nodeType === 1) {
                clone._scrollTop = node.scrollTop;
                clone._scrollLeft = node.scrollLeft;
                if (node.nodeName === "CANVAS") {
                    cloneCanvasContents(node, clone);
                } else if (node.nodeName === "TEXTAREA" || node.nodeName === "SELECT") {
                    clone.value = node.value;
                }
            }

            return clone;
        }

        function initNode(node) {
            if (node.nodeType === 1) {
                node.scrollTop = node._scrollTop;
                node.scrollLeft = node._scrollLeft;

                var child = node.firstChild;
                while(child) {
                    initNode(child);
                    child = child.nextSibling;
                }
            }
        }

        module.exports = function(ownerDocument, containerDocument, width, height, options, x ,y) {
            var documentElement = cloneNode(ownerDocument.documentElement, options.javascriptEnabled);
            var container = containerDocument.createElement("iframe");

            container.className = "html2canvas-container";
            container.style.visibility = "hidden";
            container.style.position = "fixed";
            container.style.left = "-10000px";
            container.style.top = "0px";
            container.style.border = "0";
            container.width = width;
            container.height = height;
            container.scrolling = "no"; // ios won't scroll without it
            containerDocument.body.appendChild(container);

            return new Promise(function(resolve) {
                var documentClone = container.contentWindow.document;

                /* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
         if window url is about:blank, we can assign the url to current by writing onto the document
         */
                container.contentWindow.onload = container.onload = function() {
                    var interval = setInterval(function() {
                        if (documentClone.body.childNodes.length > 0) {
                            initNode(documentClone.documentElement);
                            clearInterval(interval);
                            if (options.type === "view") {
                                container.contentWindow.scrollTo(x, y);
                                if ((/(iPad|iPhone|iPod)/g).test(navigator.userAgent) && (container.contentWindow.scrollY !== y || container.contentWindow.scrollX !== x)) {
                                    documentClone.documentElement.style.top = (-y) + "px";
                                    documentClone.documentElement.style.left = (-x) + "px";
                                    documentClone.documentElement.style.position = 'absolute';
                                }
                            }
                            resolve(container);
                        }
                    }, 50);
                };

                documentClone.open();
                documentClone.write("<!DOCTYPE html><html></html>");
                // Chrome scrolls the parent document for some reason after the write to the cloned window???
                restoreOwnerScroll(ownerDocument, x, y);
                documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
                documentClone.close();
            });
        };

    },{"./log":13}],3:[function(_dereq_,module,exports){
// http://dev.w3.org/csswg/css-color/

        function Color(value) {
            this.r = 0;
            this.g = 0;
            this.b = 0;
            this.a = null;
            var result = this.fromArray(value) ||
                this.namedColor(value) ||
                this.rgb(value) ||
                this.rgba(value) ||
                this.hex6(value) ||
                this.hex3(value);
        }

        Color.prototype.darken = function(amount) {
            var a = 1 - amount;
            return  new Color([
                Math.round(this.r * a),
                Math.round(this.g * a),
                Math.round(this.b * a),
                this.a
            ]);
        };

        Color.prototype.isTransparent = function() {
            return this.a === 0;
        };

        Color.prototype.isBlack = function() {
            return this.r === 0 && this.g === 0 && this.b === 0;
        };

        Color.prototype.fromArray = function(array) {
            if (Array.isArray(array)) {
                this.r = Math.min(array[0], 255);
                this.g = Math.min(array[1], 255);
                this.b = Math.min(array[2], 255);
                if (array.length > 3) {
                    this.a = array[3];
                }
            }

            return (Array.isArray(array));
        };

        var _hex3 = /^#([a-f0-9]{3})$/i;

        Color.prototype.hex3 = function(value) {
            var match = null;
            if ((match = value.match(_hex3)) !== null) {
                this.r = parseInt(match[1][0] + match[1][0], 16);
                this.g = parseInt(match[1][1] + match[1][1], 16);
                this.b = parseInt(match[1][2] + match[1][2], 16);
            }
            return match !== null;
        };

        var _hex6 = /^#([a-f0-9]{6})$/i;

        Color.prototype.hex6 = function(value) {
            var match = null;
            if ((match = value.match(_hex6)) !== null) {
                this.r = parseInt(match[1].substring(0, 2), 16);
                this.g = parseInt(match[1].substring(2, 4), 16);
                this.b = parseInt(match[1].substring(4, 6), 16);
            }
            return match !== null;
        };


        var _rgb = /^rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)$/;

        Color.prototype.rgb = function(value) {
            var match = null;
            if ((match = value.match(_rgb)) !== null) {
                this.r = Number(match[1]);
                this.g = Number(match[2]);
                this.b = Number(match[3]);
            }
            return match !== null;
        };

        var _rgba = /^rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d?\.?\d+)\s*\)$/;

        Color.prototype.rgba = function(value) {
            var match = null;
            if ((match = value.match(_rgba)) !== null) {
                this.r = Number(match[1]);
                this.g = Number(match[2]);
                this.b = Number(match[3]);
                this.a = Number(match[4]);
            }
            return match !== null;
        };

        Color.prototype.toString = function() {
            return this.a !== null && this.a !== 1 ?
                "rgba(" + [this.r, this.g, this.b, this.a].join(",") + ")" :
                "rgb(" + [this.r, this.g, this.b].join(",") + ")";
        };

        Color.prototype.namedColor = function(value) {
            value = value.toLowerCase();
            var color = colors[value];
            if (color) {
                this.r = color[0];
                this.g = color[1];
                this.b = color[2];
            } else if (value === "transparent") {
                this.r = this.g = this.b = this.a = 0;
                return true;
            }

            return !!color;
        };

        Color.prototype.isColor = true;

// 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}, {}))
        var colors = {
            "aliceblue": [240, 248, 255],
            "antiquewhite": [250, 235, 215],
            "aqua": [0, 255, 255],
            "aquamarine": [127, 255, 212],
            "azure": [240, 255, 255],
            "beige": [245, 245, 220],
            "bisque": [255, 228, 196],
            "black": [0, 0, 0],
            "blanchedalmond": [255, 235, 205],
            "blue": [0, 0, 255],
            "blueviolet": [138, 43, 226],
            "brown": [165, 42, 42],
            "burlywood": [222, 184, 135],
            "cadetblue": [95, 158, 160],
            "chartreuse": [127, 255, 0],
            "chocolate": [210, 105, 30],
            "coral": [255, 127, 80],
            "cornflowerblue": [100, 149, 237],
            "cornsilk": [255, 248, 220],
            "crimson": [220, 20, 60],
            "cyan": [0, 255, 255],
            "darkblue": [0, 0, 139],
            "darkcyan": [0, 139, 139],
            "darkgoldenrod": [184, 134, 11],
            "darkgray": [169, 169, 169],
            "darkgreen": [0, 100, 0],
            "darkgrey": [169, 169, 169],
            "darkkhaki": [189, 183, 107],
            "darkmagenta": [139, 0, 139],
            "darkolivegreen": [85, 107, 47],
            "darkorange": [255, 140, 0],
            "darkorchid": [153, 50, 204],
            "darkred": [139, 0, 0],
            "darksalmon": [233, 150, 122],
            "darkseagreen": [143, 188, 143],
            "darkslateblue": [72, 61, 139],
            "darkslategray": [47, 79, 79],
            "darkslategrey": [47, 79, 79],
            "darkturquoise": [0, 206, 209],
            "darkviolet": [148, 0, 211],
            "deeppink": [255, 20, 147],
            "deepskyblue": [0, 191, 255],
            "dimgray": [105, 105, 105],
            "dimgrey": [105, 105, 105],
            "dodgerblue": [30, 144, 255],
            "firebrick": [178, 34, 34],
            "floralwhite": [255, 250, 240],
            "forestgreen": [34, 139, 34],
            "fuchsia": [255, 0, 255],
            "gainsboro": [220, 220, 220],
            "ghostwhite": [248, 248, 255],
            "gold": [255, 215, 0],
            "goldenrod": [218, 165, 32],
            "gray": [128, 128, 128],
            "green": [0, 128, 0],
            "greenyellow": [173, 255, 47],
            "grey": [128, 128, 128],
            "honeydew": [240, 255, 240],
            "hotpink": [255, 105, 180],
            "indianred": [205, 92, 92],
            "indigo": [75, 0, 130],
            "ivory": [255, 255, 240],
            "khaki": [240, 230, 140],
            "lavender": [230, 230, 250],
            "lavenderblush": [255, 240, 245],
            "lawngreen": [124, 252, 0],
            "lemonchiffon": [255, 250, 205],
            "lightblue": [173, 216, 230],
            "lightcoral": [240, 128, 128],
            "lightcyan": [224, 255, 255],
            "lightgoldenrodyellow": [250, 250, 210],
            "lightgray": [211, 211, 211],
            "lightgreen": [144, 238, 144],
            "lightgrey": [211, 211, 211],
            "lightpink": [255, 182, 193],
            "lightsalmon": [255, 160, 122],
            "lightseagreen": [32, 178, 170],
            "lightskyblue": [135, 206, 250],
            "lightslategray": [119, 136, 153],
            "lightslategrey": [119, 136, 153],
            "lightsteelblue": [176, 196, 222],
            "lightyellow": [255, 255, 224],
            "lime": [0, 255, 0],
            "limegreen": [50, 205, 50],
            "linen": [250, 240, 230],
            "magenta": [255, 0, 255],
            "maroon": [128, 0, 0],
            "mediumaquamarine": [102, 205, 170],
            "mediumblue": [0, 0, 205],
            "mediumorchid": [186, 85, 211],
            "mediumpurple": [147, 112, 219],
            "mediumseagreen": [60, 179, 113],
            "mediumslateblue": [123, 104, 238],
            "mediumspringgreen": [0, 250, 154],
            "mediumturquoise": [72, 209, 204],
            "mediumvioletred": [199, 21, 133],
            "midnightblue": [25, 25, 112],
            "mintcream": [245, 255, 250],
            "mistyrose": [255, 228, 225],
            "moccasin": [255, 228, 181],
            "navajowhite": [255, 222, 173],
            "navy": [0, 0, 128],
            "oldlace": [253, 245, 230],
            "olive": [128, 128, 0],
            "olivedrab": [107, 142, 35],
            "orange": [255, 165, 0],
            "orangered": [255, 69, 0],
            "orchid": [218, 112, 214],
            "palegoldenrod": [238, 232, 170],
            "palegreen": [152, 251, 152],
            "paleturquoise": [175, 238, 238],
            "palevioletred": [219, 112, 147],
            "papayawhip": [255, 239, 213],
            "peachpuff": [255, 218, 185],
            "peru": [205, 133, 63],
            "pink": [255, 192, 203],
            "plum": [221, 160, 221],
            "powderblue": [176, 224, 230],
            "purple": [128, 0, 128],
            "rebeccapurple": [102, 51, 153],
            "red": [255, 0, 0],
            "rosybrown": [188, 143, 143],
            "royalblue": [65, 105, 225],
            "saddlebrown": [139, 69, 19],
            "salmon": [250, 128, 114],
            "sandybrown": [244, 164, 96],
            "seagreen": [46, 139, 87],
            "seashell": [255, 245, 238],
            "sienna": [160, 82, 45],
            "silver": [192, 192, 192],
            "skyblue": [135, 206, 235],
            "slateblue": [106, 90, 205],
            "slategray": [112, 128, 144],
            "slategrey": [112, 128, 144],
            "snow": [255, 250, 250],
            "springgreen": [0, 255, 127],
            "steelblue": [70, 130, 180],
            "tan": [210, 180, 140],
            "teal": [0, 128, 128],
            "thistle": [216, 191, 216],
            "tomato": [255, 99, 71],
            "turquoise": [64, 224, 208],
            "violet": [238, 130, 238],
            "wheat": [245, 222, 179],
            "white": [255, 255, 255],
            "whitesmoke": [245, 245, 245],
            "yellow": [255, 255, 0],
            "yellowgreen": [154, 205, 50]
        };

        module.exports = Color;

    },{}],4:[function(_dereq_,module,exports){
        var Support = _dereq_('./support');
        var CanvasRenderer = _dereq_('./renderers/canvas');
        var ImageLoader = _dereq_('./imageloader');
        var NodeParser = _dereq_('./nodeparser');
        var NodeContainer = _dereq_('./nodecontainer');
        var log = _dereq_('./log');
        var utils = _dereq_('./utils');
        var createWindowClone = _dereq_('./clone');
        var loadUrlDocument = _dereq_('./proxy').loadUrlDocument;
        var getBounds = utils.getBounds;

        var html2canvasNodeAttribute = "data-html2canvas-node";
        var html2canvasCloneIndex = 0;

        function html2canvas(nodeList, options) {
            var index = html2canvasCloneIndex++;
            options = options || {};
            if (options.logging) {
                log.options.logging = true;
                log.options.start = Date.now();
            }

            options.async = typeof(options.async) === "undefined" ? true : options.async;
            options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
            options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
            options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
            options.imageTimeout = typeof(options.imageTimeout) === "undefined" ? 10000 : options.imageTimeout;
            options.renderer = typeof(options.renderer) === "function" ? options.renderer : CanvasRenderer;
            options.strict = !!options.strict;

            if (typeof(nodeList) === "string") {
                if (typeof(options.proxy) !== "string") {
                    return Promise.reject("Proxy must be used when rendering url");
                }
                var width = options.width != null ? options.width : window.innerWidth;
                var height = options.height != null ? options.height : window.innerHeight;
                return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, width, height, options).then(function(container) {
                    return renderWindow(container.contentWindow.document.documentElement, container, options, width, height);
                });
            }

            var node = ((nodeList === undefined) ? [document.documentElement] : ((nodeList.length) ? nodeList : [nodeList]))[0];
            node.setAttribute(html2canvasNodeAttribute + index, index);
            return renderDocument(node.ownerDocument, options, node.ownerDocument.defaultView.innerWidth, node.ownerDocument.defaultView.innerHeight, index).then(function(canvas) {
                if (typeof(options.onrendered) === "function") {
                    log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
                    options.onrendered(canvas);
                }
                return canvas;
            });
        }

        html2canvas.CanvasRenderer = CanvasRenderer;
        html2canvas.NodeContainer = NodeContainer;
        html2canvas.log = log;
        html2canvas.utils = utils;

        var html2canvasExport = (typeof(document) === "undefined" || typeof(Object.create) !== "function" || typeof(document.createElement("canvas").getContext) !== "function") ? function() {
            return Promise.reject("No canvas support");
        } : html2canvas;

        module.exports = html2canvasExport;

        if (typeof(define) === 'function' && define.amd) {
            define('html2canvas', [], function() {
                return html2canvasExport;
            });
        }

        function renderDocument(document, options, windowWidth, windowHeight, html2canvasIndex) {
            return createWindowClone(document, document, windowWidth, windowHeight, options, document.defaultView.pageXOffset, document.defaultView.pageYOffset).then(function(container) {
                log("Document cloned");
                var attributeName = html2canvasNodeAttribute + html2canvasIndex;
                var selector = "[" + attributeName + "='" + html2canvasIndex + "']";
                document.querySelector(selector).removeAttribute(attributeName);
                var clonedWindow = container.contentWindow;
                var node = clonedWindow.document.querySelector(selector);
                var oncloneHandler = (typeof(options.onclone) === "function") ? Promise.resolve(options.onclone(clonedWindow.document)) : Promise.resolve(true);
                return oncloneHandler.then(function() {
                    return renderWindow(node, container, options, windowWidth, windowHeight);
                });
            });
        }

        function renderWindow(node, container, options, windowWidth, windowHeight) {
            var clonedWindow = container.contentWindow;
            var support = new Support(clonedWindow.document);
            var imageLoader = new ImageLoader(options, support);
            var bounds = getBounds(node);
            var width = options.type === "view" ? windowWidth : documentWidth(clonedWindow.document);
            var height = options.type === "view" ? windowHeight : documentHeight(clonedWindow.document);
            var renderer = new options.renderer(width, height, imageLoader, options, document);
            var parser = new NodeParser(node, renderer, support, imageLoader, options);
            return parser.ready.then(function() {
                log("Finished rendering");
                var canvas;

                if (options.type === "view") {
                    canvas = crop(renderer.canvas, {width: renderer.canvas.width, height: renderer.canvas.height, top: 0, left: 0, x: 0, y: 0});
                } else if (node === clonedWindow.document.body || node === clonedWindow.document.documentElement || options.canvas != null) {
                    canvas = renderer.canvas;
                } else {
                    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: 0, y: 0});
                }

                cleanupContainer(container, options);
                return canvas;
            });
        }

        function cleanupContainer(container, options) {
            if (options.removeContainer) {
                container.parentNode.removeChild(container);
                log("Cleaned up container");
            }
        }

        function crop(canvas, bounds) {
            var croppedCanvas = document.createElement("canvas");
            var x1 = Math.min(canvas.width - 1, Math.max(0, bounds.left));
            var x2 = Math.min(canvas.width, Math.max(1, bounds.left + bounds.width));
            var y1 = Math.min(canvas.height - 1, Math.max(0, bounds.top));
            var y2 = Math.min(canvas.height, Math.max(1, bounds.top + bounds.height));
            croppedCanvas.width = bounds.width;
            croppedCanvas.height =  bounds.height;
            var width = x2-x1;
            var height = y2-y1;
            log("Cropping canvas at:", "left:", bounds.left, "top:", bounds.top, "width:", width, "height:", height);
            log("Resulting crop with width", bounds.width, "and height", bounds.height, "with x", x1, "and y", y1);
            croppedCanvas.getContext("2d").drawImage(canvas, x1, y1, width, height, bounds.x, bounds.y, width, height);
            return croppedCanvas;
        }

        function documentWidth (doc) {
            return Math.max(
                Math.max(doc.body.scrollWidth, doc.documentElement.scrollWidth),
                Math.max(doc.body.offsetWidth, doc.documentElement.offsetWidth),
                Math.max(doc.body.clientWidth, doc.documentElement.clientWidth)
            );
        }

        function documentHeight (doc) {
            return Math.max(
                Math.max(doc.body.scrollHeight, doc.documentElement.scrollHeight),
                Math.max(doc.body.offsetHeight, doc.documentElement.offsetHeight),
                Math.max(doc.body.clientHeight, doc.documentElement.clientHeight)
            );
        }

        function absoluteUrl(url) {
            var link = document.createElement("a");
            link.href = url;
            link.href = link.href;
            return link;
        }

    },{"./clone":2,"./imageloader":11,"./log":13,"./nodecontainer":14,"./nodeparser":15,"./proxy":16,"./renderers/canvas":20,"./support":22,"./utils":26}],5:[function(_dereq_,module,exports){
        var log = _dereq_('./log');
        var smallImage = _dereq_('./utils').smallImage;

        function DummyImageContainer(src) {
            this.src = src;
            log("DummyImageContainer for", src);
            if (!this.promise || !this.image) {
                log("Initiating DummyImageContainer");
                DummyImageContainer.prototype.image = new Image();
                var image = this.image;
                DummyImageContainer.prototype.promise = new Promise(function(resolve, reject) {
                    image.onload = resolve;
                    image.onerror = reject;
                    image.src = smallImage();
                    if (image.complete === true) {
                        resolve(image);
                    }
                });
            }
        }

        module.exports = DummyImageContainer;

    },{"./log":13,"./utils":26}],6:[function(_dereq_,module,exports){
        var smallImage = _dereq_('./utils').smallImage;

        function Font(family, size) {
            var container = document.createElement('div'),
                img = document.createElement('img'),
                span = document.createElement('span'),
                sampleText = 'Hidden Text',
                baseline,
                middle;

            container.style.visibility = "hidden";
            container.style.fontFamily = family;
            container.style.fontSize = size;
            container.style.margin = 0;
            container.style.padding = 0;

            document.body.appendChild(container);

            img.src = smallImage();
            img.width = 1;
            img.height = 1;

            img.style.margin = 0;
            img.style.padding = 0;
            img.style.verticalAlign = "baseline";

            span.style.fontFamily = family;
            span.style.fontSize = size;
            span.style.margin = 0;
            span.style.padding = 0;

            span.appendChild(document.createTextNode(sampleText));
            container.appendChild(span);
            container.appendChild(img);
            baseline = (img.offsetTop - span.offsetTop) + 1;

            container.removeChild(span);
            container.appendChild(document.createTextNode(sampleText));

            container.style.lineHeight = "normal";
            img.style.verticalAlign = "super";

            middle = (img.offsetTop-container.offsetTop) + 1;

            document.body.removeChild(container);

            this.baseline = baseline;
            this.lineWidth = 1;
            this.middle = middle;
        }

        module.exports = Font;

    },{"./utils":26}],7:[function(_dereq_,module,exports){
        var Font = _dereq_('./font');

        function FontMetrics() {
            this.data = {};
        }

        FontMetrics.prototype.getMetrics = function(family, size) {
            if (this.data[family + "-" + size] === undefined) {
                this.data[family + "-" + size] = new Font(family, size);
            }
            return this.data[family + "-" + size];
        };

        module.exports = FontMetrics;

    },{"./font":6}],8:[function(_dereq_,module,exports){
        var utils = _dereq_('./utils');
        var getBounds = utils.getBounds;
        var loadUrlDocument = _dereq_('./proxy').loadUrlDocument;

        function FrameContainer(container, sameOrigin, options) {
            this.image = null;
            this.src = container;
            var self = this;
            var bounds = getBounds(container);
            this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
                if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
                    container.contentWindow.onload = container.onload = function() {
                        resolve(container);
                    };
                } else {
                    resolve(container);
                }
            })).then(function(container) {
                var html2canvas = _dereq_('./core');
                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});
            }).then(function(canvas) {
                return self.image = canvas;
            });
        }

        FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
            var container = this.src;
            return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
        };

        module.exports = FrameContainer;

    },{"./core":4,"./proxy":16,"./utils":26}],9:[function(_dereq_,module,exports){
        function GradientContainer(imageData) {
            this.src = imageData.value;
            this.colorStops = [];
            this.type = null;
            this.x0 = 0.5;
            this.y0 = 0.5;
            this.x1 = 0.5;
            this.y1 = 0.5;
            this.promise = Promise.resolve(true);
        }

        GradientContainer.TYPES = {
            LINEAR: 1,
            RADIAL: 2
        };

// TODO: support hsl[a], negative %/length values
// TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
        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;

        module.exports = GradientContainer;

    },{}],10:[function(_dereq_,module,exports){
        function ImageContainer(src, cors) {
            this.src = src;
            this.image = new Image();
            var self = this;
            this.tainted = null;
            this.promise = new Promise(function(resolve, reject) {
                self.image.onload = resolve;
                self.image.onerror = reject;
                if (cors) {
                    self.image.crossOrigin = "anonymous";
                }
                self.image.src = src;
                if (self.image.complete === true) {
                    resolve(self.image);
                }
            });
        }

        module.exports = ImageContainer;

    },{}],11:[function(_dereq_,module,exports){
        var log = _dereq_('./log');
        var ImageContainer = _dereq_('./imagecontainer');
        var DummyImageContainer = _dereq_('./dummyimagecontainer');
        var ProxyImageContainer = _dereq_('./proxyimagecontainer');
        var FrameContainer = _dereq_('./framecontainer');
        var SVGContainer = _dereq_('./svgcontainer');
        var SVGNodeContainer = _dereq_('./svgnodecontainer');
        var LinearGradientContainer = _dereq_('./lineargradientcontainer');
        var WebkitGradientContainer = _dereq_('./webkitgradientcontainer');
        var bind = _dereq_('./utils').bind;

        function ImageLoader(options, support) {
            this.link = null;
            this.options = options;
            this.support = support;
            this.origin = this.getOrigin(window.location.href);
        }

        ImageLoader.prototype.findImages = function(nodes) {
            var images = [];
            nodes.reduce(function(imageNodes, container) {
                switch(container.node.nodeName) {
                    case "IMG":
                        return imageNodes.concat([{
                            args: [container.node.src],
                            method: "url"
                        }]);
                    case "svg":
                    case "IFRAME":
                        return imageNodes.concat([{
                            args: [container.node],
                            method: container.node.nodeName
                        }]);
                }
                return imageNodes;
            }, []).forEach(this.addImage(images, this.loadImage), this);
            return images;
        };

        ImageLoader.prototype.findBackgroundImage = function(images, container) {
            container.parseBackgroundImages().filter(this.hasImageBackground).forEach(this.addImage(images, this.loadImage), this);
            return images;
        };

        ImageLoader.prototype.addImage = function(images, callback) {
            return function(newImage) {
                newImage.args.forEach(function(image) {
                    if (!this.imageExists(images, image)) {
                        images.splice(0, 0, callback.call(this, newImage));
                        log('Added image #' + (images.length), typeof(image) === "string" ? image.substring(0, 100) : image);
                    }
                }, this);
            };
        };

        ImageLoader.prototype.hasImageBackground = function(imageData) {
            return imageData.method !== "none";
        };

        ImageLoader.prototype.loadImage = function(imageData) {
            if (imageData.method === "url") {
                var src = imageData.args[0];
                if (this.isSVG(src) && !this.support.svg && !this.options.allowTaint) {
                    return new SVGContainer(src);
                } else if (src.match(/data:image\/.*;base64,/i)) {
                    return new ImageContainer(src.replace(/url\(['"]{0,}|['"]{0,}\)$/ig, ''), false);
                } else if (this.isSameOrigin(src) || this.options.allowTaint === true || this.isSVG(src)) {
                    return new ImageContainer(src, false);
                } else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) {
                    return new ImageContainer(src, true);
                } else if (this.options.proxy) {
                    return new ProxyImageContainer(src, this.options.proxy);
                } else {
                    return new DummyImageContainer(src);
                }
            } else if (imageData.method === "linear-gradient") {
                return new LinearGradientContainer(imageData);
            } else if (imageData.method === "gradient") {
                return new WebkitGradientContainer(imageData);
            } else if (imageData.method === "svg") {
                return new SVGNodeContainer(imageData.args[0], this.support.svg);
            } else if (imageData.method === "IFRAME") {
                return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
            } else {
                return new DummyImageContainer(imageData);
            }
        };

        ImageLoader.prototype.isSVG = function(src) {
            return src.substring(src.length - 3).toLowerCase() === "svg" || SVGContainer.prototype.isInline(src);
        };

        ImageLoader.prototype.imageExists = function(images, src) {
            return images.some(function(image) {
                return image.src === src;
            });
        };

        ImageLoader.prototype.isSameOrigin = function(url) {
            return (this.getOrigin(url) === this.origin);
        };

        ImageLoader.prototype.getOrigin = function(url) {
            var link = this.link || (this.link = document.createElement("a"));
            link.href = url;
            link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
            return link.protocol + link.hostname + link.port;
        };

        ImageLoader.prototype.getPromise = function(container) {
            return this.timeout(container, this.options.imageTimeout)['catch'](function() {
                var dummy = new DummyImageContainer(container.src);
                return dummy.promise.then(function(image) {
                    container.image = image;
                });
            });
        };

        ImageLoader.prototype.get = function(src) {
            var found = null;
            return this.images.some(function(img) {
                return (found = img).src === src;
            }) ? found : null;
        };

        ImageLoader.prototype.fetch = function(nodes) {
            this.images = nodes.reduce(bind(this.findBackgroundImage, this), this.findImages(nodes));
            this.images.forEach(function(image, index) {
                image.promise.then(function() {
                    log("Succesfully loaded image #"+ (index+1), image);
                }, function(e) {
                    log("Failed loading image #"+ (index+1), image, e);
                });
            });
            this.ready = Promise.all(this.images.map(this.getPromise, this));
            log("Finished searching images");
            return this;
        };

        ImageLoader.prototype.timeout = function(container, timeout) {
            var timer;
            var promise = Promise.race([container.promise, new Promise(function(res, reject) {
                timer = setTimeout(function() {
                    log("Timed out loading image", container);
                    reject(container);
                }, timeout);
            })]).then(function(container) {
                clearTimeout(timer);
                return container;
            });
            promise['catch'](function() {
                clearTimeout(timer);
            });
            return promise;
        };

        module.exports = ImageLoader;

    },{"./dummyimagecontainer":5,"./framecontainer":8,"./imagecontainer":10,"./lineargradientcontainer":12,"./log":13,"./proxyimagecontainer":17,"./svgcontainer":23,"./svgnodecontainer":24,"./utils":26,"./webkitgradientcontainer":27}],12:[function(_dereq_,module,exports){
        var GradientContainer = _dereq_('./gradientcontainer');
        var Color = _dereq_('./color');

        function LinearGradientContainer(imageData) {
            GradientContainer.apply(this, arguments);
            this.type = GradientContainer.TYPES.LINEAR;

            var hasDirection = LinearGradientContainer.REGEXP_DIRECTION.test( imageData.args[0] ) ||
                !GradientContainer.REGEXP_COLORSTOP.test( imageData.args[0] );

            if (hasDirection) {
                imageData.args[0].split(/\s+/).reverse().forEach(function(position, index) {
                    switch(position) {
                        case "left":
                            this.x0 = 0;
                            this.x1 = 1;
                            break;
                        case "top":
                            this.y0 = 0;
                            this.y1 = 1;
                            break;
                        case "right":
                            this.x0 = 1;
                            this.x1 = 0;
                            break;
                        case "bottom":
                            this.y0 = 1;
                            this.y1 = 0;
                            break;
                        case "to":
                            var y0 = this.y0;
                            var x0 = this.x0;
                            this.y0 = this.y1;
                            this.x0 = this.x1;
                            this.x1 = x0;
                            this.y1 = y0;
                            break;
                        case "center":
                            break; // centered by default
                        // Firefox internally converts position keywords to percentages:
                        // http://www.w3.org/TR/2010/WD-CSS2-20101207/colors.html#propdef-background-position
                        default: // percentage or absolute length
                            // TODO: support absolute start point positions (e.g., use bounds to convert px to a ratio)
                            var ratio = parseFloat(position, 10) * 1e-2;
                            if (isNaN(ratio)) { // invalid or unhandled value
                                break;
                            }
                            if (index === 0) {
                                this.y0 = ratio;
                                this.y1 = 1 - this.y0;
                            } else {
                                this.x0 = ratio;
                                this.x1 = 1 - this.x0;
                            }
                            break;
                    }
                }, this);
            } else {
                this.y0 = 0;
                this.y1 = 1;
            }

            this.colorStops = imageData.args.slice(hasDirection ? 1 : 0).map(function(colorStop) {
                var colorStopMatch = colorStop.match(GradientContainer.REGEXP_COLORSTOP);
                var value = +colorStopMatch[2];
                var unit = value === 0 ? "%" : colorStopMatch[3]; // treat "0" as "0%"
                return {
                    color: new Color(colorStopMatch[1]),
                    // TODO: support absolute stop positions (e.g., compute gradient line length & convert px to ratio)
                    stop: unit === "%" ? value / 100 : null
                };
            });

            if (this.colorStops[0].stop === null) {
                this.colorStops[0].stop = 0;
            }

            if (this.colorStops[this.colorStops.length - 1].stop === null) {
                this.colorStops[this.colorStops.length - 1].stop = 1;
            }

            // calculates and fills-in explicit stop positions when omitted from rule
            this.colorStops.forEach(function(colorStop, index) {
                if (colorStop.stop === null) {
                    this.colorStops.slice(index).some(function(find, count) {
                        if (find.stop !== null) {
                            colorStop.stop = ((find.stop - this.colorStops[index - 1].stop) / (count + 1)) + this.colorStops[index - 1].stop;
                            return true;
                        } else {
                            return false;
                        }
                    }, this);
                }
            }, this);
        }

        LinearGradientContainer.prototype = Object.create(GradientContainer.prototype);

// TODO: support <angle> (e.g. -?\d{1,3}(?:\.\d+)deg, etc. : https://developer.mozilla.org/docs/Web/CSS/angle )
        LinearGradientContainer.REGEXP_DIRECTION = /^\s*(?:to|left|right|top|bottom|center|\d{1,3}(?:\.\d+)?%?)(?:\s|$)/i;

        module.exports = LinearGradientContainer;

    },{"./color":3,"./gradientcontainer":9}],13:[function(_dereq_,module,exports){
        var logger = function() {
            if (logger.options.logging && window.console && window.console.log) {
                Function.prototype.bind.call(window.console.log, (window.console)).apply(window.console, [(Date.now() - logger.options.start) + "ms", "html2canvas:"].concat([].slice.call(arguments, 0)));
            }
        };

        logger.options = {logging: false};
        module.exports = logger;

    },{}],14:[function(_dereq_,module,exports){
        var Color = _dereq_('./color');
        var utils = _dereq_('./utils');
        var getBounds = utils.getBounds;
        var parseBackgrounds = utils.parseBackgrounds;
        var offsetBounds = utils.offsetBounds;

        function NodeContainer(node, parent) {
            this.node = node;
            this.parent = parent;
            this.stack = null;
            this.bounds = null;
            this.borders = null;
            this.clip = [];
            this.backgroundClip = [];
            this.offsetBounds = null;
            this.visible = null;
            this.computedStyles = null;
            this.colors = {};
            this.styles = {};
            this.backgroundImages = null;
            this.transformData = null;
            this.transformMatrix = null;
            this.isPseudoElement = false;
            this.opacity = null;
        }

        NodeContainer.prototype.cloneTo = function(stack) {
            stack.visible = this.visible;
            stack.borders = this.borders;
            stack.bounds = this.bounds;
            stack.clip = this.clip;
            stack.backgroundClip = this.backgroundClip;
            stack.computedStyles = this.computedStyles;
            stack.styles = this.styles;
            stack.backgroundImages = this.backgroundImages;
            stack.opacity = this.opacity;
        };

        NodeContainer.prototype.getOpacity = function() {
            return this.opacity === null ? (this.opacity = this.cssFloat('opacity')) : this.opacity;
        };

        NodeContainer.prototype.assignStack = function(stack) {
            this.stack = stack;
            stack.children.push(this);
        };

        NodeContainer.prototype.isElementVisible = function() {
            return this.node.nodeType === Node.TEXT_NODE ? this.parent.visible : (
                this.css('display') !== "none" &&
                this.css('visibility') !== "hidden" &&
                !this.node.hasAttribute("data-html2canvas-ignore") &&
                (this.node.nodeName !== "INPUT" || this.node.getAttribute("type") !== "hidden")
            );
        };

        NodeContainer.prototype.css = function(attribute) {
            if (!this.computedStyles) {
                this.computedStyles = this.isPseudoElement ? this.parent.computedStyle(this.before ? ":before" : ":after") : this.computedStyle(null);
            }

            return this.styles[attribute] || (this.styles[attribute] = this.computedStyles[attribute]);
        };

        NodeContainer.prototype.prefixedCss = function(attribute) {
            var prefixes = ["webkit", "moz", "ms", "o"];
            var value = this.css(attribute);
            if (value === undefined) {
                prefixes.some(function(prefix) {
                    value = this.css(prefix + attribute.substr(0, 1).toUpperCase() + attribute.substr(1));
                    return value !== undefined;
                }, this);
            }
            return value === undefined ? null : value;
        };

        NodeContainer.prototype.computedStyle = function(type) {
            return this.node.ownerDocument.defaultView.getComputedStyle(this.node, type);
        };

        NodeContainer.prototype.cssInt = function(attribute) {
            var value = parseInt(this.css(attribute), 10);
            return (isNaN(value)) ? 0 : value; // borders in old IE are throwing 'medium' for demo.html
        };

        NodeContainer.prototype.color = function(attribute) {
            return this.colors[attribute] || (this.colors[attribute] = new Color(this.css(attribute)));
        };

        NodeContainer.prototype.cssFloat = function(attribute) {
            var value = parseFloat(this.css(attribute));
            return (isNaN(value)) ? 0 : value;
        };

        NodeContainer.prototype.fontWeight = function() {
            var weight = this.css("fontWeight");
            switch(parseInt(weight, 10)){
                case 401:
                    weight = "bold";
                    break;
                case 400:
                    weight = "normal";
                    break;
            }
            return weight;
        };

        NodeContainer.prototype.parseClip = function() {
            var matches = this.css('clip').match(this.CLIP);
            if (matches) {
                return {
                    top: parseInt(matches[1], 10),
                    right: parseInt(matches[2], 10),
                    bottom: parseInt(matches[3], 10),
                    left: parseInt(matches[4], 10)
                };
            }
            return null;
        };

        NodeContainer.prototype.parseBackgroundImages = function() {
            return this.backgroundImages || (this.backgroundImages = parseBackgrounds(this.css("backgroundImage")));
        };

        NodeContainer.prototype.cssList = function(property, index) {
            var value = (this.css(property) || '').split(',');
            value = value[index || 0] || value[0] || 'auto';
            value = value.trim().split(' ');
            if (value.length === 1) {
                value = [value[0], isPercentage(value[0]) ? 'auto' : value[0]];
            }
            return value;
        };

        NodeContainer.prototype.parseBackgroundSize = function(bounds, image, index) {
            var size = this.cssList("backgroundSize", index);
            var width, height;

            if (isPercentage(size[0])) {
                width = bounds.width * parseFloat(size[0]) / 100;
            } else if (/contain|cover/.test(size[0])) {
                var targetRatio = bounds.width / bounds.height, currentRatio = image.width / image.height;
                return (targetRatio < currentRatio ^ size[0] === 'contain') ?  {width: bounds.height * currentRatio, height: bounds.height} : {width: bounds.width, height: bounds.width / currentRatio};
            } else {
                width = parseInt(size[0], 10);
            }

            if (size[0] === 'auto' && size[1] === 'auto') {
                height = image.height;
            } else if (size[1] === 'auto') {
                height = width / image.width * image.height;
            } else if (isPercentage(size[1])) {
                height =  bounds.height * parseFloat(size[1]) / 100;
            } else {
                height = parseInt(size[1], 10);
            }

            if (size[0] === 'auto') {
                width = height / image.height * image.width;
            }

            return {width: width, height: height};
        };

        NodeContainer.prototype.parseBackgroundPosition = function(bounds, image, index, backgroundSize) {
            var position = this.cssList('backgroundPosition', index);
            var left, top;

            if (isPercentage(position[0])){
                left = (bounds.width - (backgroundSize || image).width) * (parseFloat(position[0]) / 100);
            } else {
                left = parseInt(position[0], 10);
            }

            if (position[1] === 'auto') {
                top = left / image.width * image.height;
            } else if (isPercentage(position[1])){
                top =  (bounds.height - (backgroundSize || image).height) * parseFloat(position[1]) / 100;
            } else {
                top = parseInt(position[1], 10);
            }

            if (position[0] === 'auto') {
                left = top / image.height * image.width;
            }

            return {left: left, top: top};
        };

        NodeContainer.prototype.parseBackgroundRepeat = function(index) {
            return this.cssList("backgroundRepeat", index)[0];
        };

        NodeContainer.prototype.parseTextShadows = function() {
            var textShadow = this.css("textShadow");
            var results = [];

            if (textShadow && textShadow !== 'none') {
                var shadows = textShadow.match(this.TEXT_SHADOW_PROPERTY);
                for (var i = 0; shadows && (i < shadows.length); i++) {
                    var s = shadows[i].match(this.TEXT_SHADOW_VALUES);
                    results.push({
                        color: new Color(s[0]),
                        offsetX: s[1] ? parseFloat(s[1].replace('px', '')) : 0,
                        offsetY: s[2] ? parseFloat(s[2].replace('px', '')) : 0,
                        blur: s[3] ? s[3].replace('px', '') : 0
                    });
                }
            }
            return results;
        };

        NodeContainer.prototype.parseTransform = function() {
            if (!this.transformData) {
                if (this.hasTransform()) {
                    var offset = this.parseBounds();
                    var origin = this.prefixedCss("transformOrigin").split(" ").map(removePx).map(asFloat);
                    origin[0] += offset.left;
                    origin[1] += offset.top;
                    this.transformData = {
                        origin: origin,
                        matrix: this.parseTransformMatrix()
                    };
                } else {
                    this.transformData = {
                        origin: [0, 0],
                        matrix: [1, 0, 0, 1, 0, 0]
                    };
                }
            }
            return this.transformData;
        };

        NodeContainer.prototype.parseTransformMatrix = function() {
            if (!this.transformMatrix) {
                var transform = this.prefixedCss("transform");
                var matrix = transform ? parseMatrix(transform.match(this.MATRIX_PROPERTY)) : null;
                this.transformMatrix = matrix ? matrix : [1, 0, 0, 1, 0, 0];
            }
            return this.transformMatrix;
        };

        NodeContainer.prototype.parseBounds = function() {
            return this.bounds || (this.bounds = this.hasTransform() ? offsetBounds(this.node) : getBounds(this.node));
        };

        NodeContainer.prototype.hasTransform = function() {
            return this.parseTransformMatrix().join(",") !== "1,0,0,1,0,0" || (this.parent && this.parent.hasTransform());
        };

        NodeContainer.prototype.getValue = function() {
            var value = this.node.value || "";
            if (this.node.tagName === "SELECT") {
                value = selectionValue(this.node);
            } else if (this.node.type === "password") {
                value = Array(value.length + 1).join('\u2022'); // jshint ignore:line
            }
            return value.length === 0 ? (this.node.placeholder || "") : value;
        };

        NodeContainer.prototype.MATRIX_PROPERTY = /(matrix|matrix3d)\((.+)\)/;
        NodeContainer.prototype.TEXT_SHADOW_PROPERTY = /((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;
        NodeContainer.prototype.TEXT_SHADOW_VALUES = /(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;
        NodeContainer.prototype.CLIP = /^rect\((\d+)px,? (\d+)px,? (\d+)px,? (\d+)px\)$/;

        function selectionValue(node) {
            var option = node.options[node.selectedIndex || 0];
            return option ? (option.text || "") : "";
        }

        function parseMatrix(match) {
            if (match && match[1] === "matrix") {
                return match[2].split(",").map(function(s) {
                    return parseFloat(s.trim());
                });
            } else if (match && match[1] === "matrix3d") {
                var matrix3d = match[2].split(",").map(function(s) {
                    return parseFloat(s.trim());
                });
                return [matrix3d[0], matrix3d[1], matrix3d[4], matrix3d[5], matrix3d[12], matrix3d[13]];
            }
        }

        function isPercentage(value) {
            return value.toString().indexOf("%") !== -1;
        }

        function removePx(str) {
            return str.replace("px", "");
        }

        function asFloat(str) {
            return parseFloat(str);
        }

        module.exports = NodeContainer;

    },{"./color":3,"./utils":26}],15:[function(_dereq_,module,exports){
        var log = _dereq_('./log');
        var punycode = _dereq_('punycode');
        var NodeContainer = _dereq_('./nodecontainer');
        var TextContainer = _dereq_('./textcontainer');
        var PseudoElementContainer = _dereq_('./pseudoelementcontainer');
        var FontMetrics = _dereq_('./fontmetrics');
        var Color = _dereq_('./color');
        var StackingContext = _dereq_('./stackingcontext');
        var utils = _dereq_('./utils');
        var bind = utils.bind;
        var getBounds = utils.getBounds;
        var parseBackgrounds = utils.parseBackgrounds;
        var offsetBounds = utils.offsetBounds;

        function NodeParser(element, renderer, support, imageLoader, options) {
            log("Starting NodeParser");
            this.renderer = renderer;
            this.options = options;
            this.range = null;
            this.support = support;
            this.renderQueue = [];
            this.stack = new StackingContext(true, 1, element.ownerDocument, null);
            var parent = new NodeContainer(element, null);
            if (options.background) {
                renderer.rectangle(0, 0, renderer.width, renderer.height, new Color(options.background));
            }
            if (element === element.ownerDocument.documentElement) {
                // http://www.w3.org/TR/css3-background/#special-backgrounds
                var canvasBackground = new NodeContainer(parent.color('backgroundColor').isTransparent() ? element.ownerDocument.body : element.ownerDocument.documentElement, null);
                renderer.rectangle(0, 0, renderer.width, renderer.height, canvasBackground.color('backgroundColor'));
            }
            parent.visibile = parent.isElementVisible();
            this.createPseudoHideStyles(element.ownerDocument);
            this.disableAnimations(element.ownerDocument);
            this.nodes = flatten([parent].concat(this.getChildren(parent)).filter(function(container) {
                return container.visible = container.isElementVisible();
            }).map(this.getPseudoElements, this));
            this.fontMetrics = new FontMetrics();
            log("Fetched nodes, total:", this.nodes.length);
            log("Calculate overflow clips");
            this.calculateOverflowClips();
            log("Start fetching images");
            this.images = imageLoader.fetch(this.nodes.filter(isElement));
            this.ready = this.images.ready.then(bind(function() {
                log("Images loaded, starting parsing");
                log("Creating stacking contexts");
                this.createStackingContexts();
                log("Sorting stacking contexts");
                this.sortStackingContexts(this.stack);
                this.parse(this.stack);
                log("Render queue created with " + this.renderQueue.length + " items");
                return new Promise(bind(function(resolve) {
                    if (!options.async) {
                        this.renderQueue.forEach(this.paint, this);
                        resolve();
                    } else if (typeof(options.async) === "function") {
                        options.async.call(this, this.renderQueue, resolve);
                    } else if (this.renderQueue.length > 0){
                        this.renderIndex = 0;
                        this.asyncRenderer(this.renderQueue, resolve);
                    } else {
                        resolve();
                    }
                }, this));
            }, this));
        }

        NodeParser.prototype.calculateOverflowClips = function() {
            this.nodes.forEach(function(container) {
                if (isElement(container)) {
                    if (isPseudoElement(container)) {
                        container.appendToDOM();
                    }
                    container.borders = this.parseBorders(container);
                    var clip = (container.css('overflow') === "hidden") ? [container.borders.clip] : [];
                    var cssClip = container.parseClip();
                    if (cssClip && ["absolute", "fixed"].indexOf(container.css('position')) !== -1) {
                        clip.push([["rect",
                            container.bounds.left + cssClip.left,
                            container.bounds.top + cssClip.top,
                            cssClip.right - cssClip.left,
                            cssClip.bottom - cssClip.top
                        ]]);
                    }
                    container.clip = hasParentClip(container) ? container.parent.clip.concat(clip) : clip;
                    container.backgroundClip = (container.css('overflow') !== "hidden") ? container.clip.concat([container.borders.clip]) : container.clip;
                    if (isPseudoElement(container)) {
                        container.cleanDOM();
                    }
                } else if (isTextNode(container)) {
                    container.clip = hasParentClip(container) ? container.parent.clip : [];
                }
                if (!isPseudoElement(container)) {
                    container.bounds = null;
                }
            }, this);
        };

        function hasParentClip(container) {
            return container.parent && container.parent.clip.length;
        }

        NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
            asyncTimer = asyncTimer || Date.now();
            this.paint(queue[this.renderIndex++]);
            if (queue.length === this.renderIndex) {
                resolve();
            } else if (asyncTimer + 20 > Date.now()) {
                this.asyncRenderer(queue, resolve, asyncTimer);
            } else {
                setTimeout(bind(function() {
                    this.asyncRenderer(queue, resolve);
                }, this), 0);
            }
        };

        NodeParser.prototype.createPseudoHideStyles = function(document) {
            this.createStyles(document, '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + ':before { content: "" !important; display: none !important; }' +
                '.' + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER + ':after { content: "" !important; display: none !important; }');
        };

        NodeParser.prototype.disableAnimations = function(document) {
            this.createStyles(document, '* { -webkit-animation: none !important; -moz-animation: none !important; -o-animation: none !important; animation: none !important; ' +
                '-webkit-transition: none !important; -moz-transition: none !important; -o-transition: none !important; transition: none !important;}');
        };

        NodeParser.prototype.createStyles = function(document, styles) {
            var hidePseudoElements = document.createElement('style');
            hidePseudoElements.innerHTML = styles;
            document.body.appendChild(hidePseudoElements);
        };

        NodeParser.prototype.getPseudoElements = function(container) {
            var nodes = [[container]];
            if (container.node.nodeType === Node.ELEMENT_NODE) {
                var before = this.getPseudoElement(container, ":before");
                var after = this.getPseudoElement(container, ":after");

                if (before) {
                    nodes.push(before);
                }

                if (after) {
                    nodes.push(after);
                }
            }
            return flatten(nodes);
        };

        function toCamelCase(str) {
            return str.replace(/(\-[a-z])/g, function(match){
                return match.toUpperCase().replace('-','');
            });
        }

        NodeParser.prototype.getPseudoElement = function(container, type) {
            var style = container.computedStyle(type);
            if(!style || !style.content || style.content === "none" || style.content === "-moz-alt-content" || style.display === "none") {
                return null;
            }

            var content = stripQuotes(style.content);
            var isImage = content.substr(0, 3) === 'url';
            var pseudoNode = document.createElement(isImage ? 'img' : 'html2canvaspseudoelement');
            var pseudoContainer = new PseudoElementContainer(pseudoNode, container, type);

            for (var i = style.length-1; i >= 0; i--) {
                var property = toCamelCase(style.item(i));
                pseudoNode.style[property] = style[property];
            }

            pseudoNode.className = PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE + " " + PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER;

            if (isImage) {
                pseudoNode.src = parseBackgrounds(content)[0].args[0];
                return [pseudoContainer];
            } else {
                var text = document.createTextNode(content);
                pseudoNode.appendChild(text);
                return [pseudoContainer, new TextContainer(text, pseudoContainer)];
            }
        };


        NodeParser.prototype.getChildren = function(parentContainer) {
            return flatten([].filter.call(parentContainer.node.childNodes, renderableNode).map(function(node) {
                var container = [node.nodeType === Node.TEXT_NODE ? new TextContainer(node, parentContainer) : new NodeContainer(node, parentContainer)].filter(nonIgnoredElement);
                return node.nodeType === Node.ELEMENT_NODE && container.length && node.tagName !== "TEXTAREA" ? (container[0].isElementVisible() ? container.concat(this.getChildren(container[0])) : []) : container;
            }, this));
        };

        NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
            var stack = new StackingContext(hasOwnStacking, container.getOpacity(), container.node, container.parent);
            container.cloneTo(stack);
            var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
            parentStack.contexts.push(stack);
            container.stack = stack;
        };

        NodeParser.prototype.createStackingContexts = function() {
            this.nodes.forEach(function(container) {
                if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container) || container.hasTransform())) {
                    this.newStackingContext(container, true);
                } else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
                    this.newStackingContext(container, false);
                } else {
                    container.assignStack(container.parent.stack);
                }
            }, this);
        };

        NodeParser.prototype.isBodyWithTransparentRoot = function(container) {
            return container.node.nodeName === "BODY" && container.parent.color('backgroundColor').isTransparent();
        };

        NodeParser.prototype.isRootElement = function(container) {
            return container.parent === null;
        };

        NodeParser.prototype.sortStackingContexts = function(stack) {
            stack.contexts.sort(zIndexSort(stack.contexts.slice(0)));
            stack.contexts.forEach(this.sortStackingContexts, this);
        };

        NodeParser.prototype.parseTextBounds = function(container) {
            return function(text, index, textList) {
                if (container.parent.css("textDecoration").substr(0, 4) !== "none" || text.trim().length !== 0) {
                    if (this.support.rangeBounds && !container.parent.hasTransform()) {
                        var offset = textList.slice(0, index).join("").length;
                        return this.getRangeBounds(container.node, offset, text.length);
                    } else if (container.node && typeof(container.node.data) === "string") {
                        var replacementNode = container.node.splitText(text.length);
                        var bounds = this.getWrapperBounds(container.node, container.parent.hasTransform());
                        container.node = replacementNode;
                        return bounds;
                    }
                } else if(!this.support.rangeBounds || container.parent.hasTransform()){
                    container.node = container.node.splitText(text.length);
                }
                return {};
            };
        };

        NodeParser.prototype.getWrapperBounds = function(node, transform) {
            var wrapper = node.ownerDocument.createElement('html2canvaswrapper');
            var parent = node.parentNode,
                backupText = node.cloneNode(true);

            wrapper.appendChild(node.cloneNode(true));
            parent.replaceChild(wrapper, node);
            var bounds = transform ? offsetBounds(wrapper) : getBounds(wrapper);
            parent.replaceChild(backupText, wrapper);
            return bounds;
        };

        NodeParser.prototype.getRangeBounds = function(node, offset, length) {
            var range = this.range || (this.range = node.ownerDocument.createRange());
            range.setStart(node, offset);
            range.setEnd(node, offset + length);
            return range.getBoundingClientRect();
        };

        function ClearTransform() {}

        NodeParser.prototype.parse = function(stack) {
            // http://www.w3.org/TR/CSS21/visuren.html#z-index
            var negativeZindex = stack.contexts.filter(negativeZIndex); // 2. the child stacking contexts with negative stack levels (most negative first).
            var descendantElements = stack.children.filter(isElement);
            var descendantNonFloats = descendantElements.filter(not(isFloating));
            var nonInlineNonPositionedDescendants = descendantNonFloats.filter(not(isPositioned)).filter(not(inlineLevel)); // 3 the in-flow, non-inline-level, non-positioned descendants.
            var nonPositionedFloats = descendantElements.filter(not(isPositioned)).filter(isFloating); // 4. the non-positioned floats.
            var inFlow = descendantNonFloats.filter(not(isPositioned)).filter(inlineLevel); // 5. the in-flow, inline-level, non-positioned descendants, including inline tables and inline blocks.
            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.
            var text = stack.children.filter(isTextNode).filter(hasText);
            var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
            negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
                .concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
                this.renderQueue.push(container);
                if (isStackingContext(container)) {
                    this.parse(container);
                    this.renderQueue.push(new ClearTransform());
                }
            }, this);
        };

        NodeParser.prototype.paint = function(container) {
            try {
                if (container instanceof ClearTransform) {
                    this.renderer.ctx.restore();
                } else if (isTextNode(container)) {
                    if (isPseudoElement(container.parent)) {
                        container.parent.appendToDOM();
                    }
                    this.paintText(container);
                    if (isPseudoElement(container.parent)) {
                        container.parent.cleanDOM();
                    }
                } else {
                    this.paintNode(container);
                }
            } catch(e) {
                log(e);
                if (this.options.strict) {
                    throw e;
                }
            }
        };

        NodeParser.prototype.paintNode = function(container) {
            if (isStackingContext(container)) {
                this.renderer.setOpacity(container.opacity);
                this.renderer.ctx.save();
                if (container.hasTransform()) {
                    this.renderer.setTransform(container.parseTransform());
                }
            }

            if (container.node.nodeName === "INPUT" && container.node.type === "checkbox") {
                this.paintCheckbox(container);
            } else if (container.node.nodeName === "INPUT" && container.node.type === "radio") {
                this.paintRadio(container);
            } else {
                this.paintElement(container);
            }
        };

        NodeParser.prototype.paintElement = function(container) {
            var bounds = container.parseBounds();
            this.renderer.clip(container.backgroundClip, function() {
                this.renderer.renderBackground(container, bounds, container.borders.borders.map(getWidth));
            }, this);

            this.renderer.clip(container.clip, function() {
                this.renderer.renderBorders(container.borders.borders);
            }, this);

            this.renderer.clip(container.backgroundClip, function() {
                switch (container.node.nodeName) {
                    case "svg":
                    case "IFRAME":
                        var imgContainer = this.images.get(container.node);
                        if (imgContainer) {
                            this.renderer.renderImage(container, bounds, container.borders, imgContainer);
                        } else {
                            log("Error loading <" + container.node.nodeName + ">", container.node);
                        }
                        break;
                    case "IMG":
                        var imageContainer = this.images.get(container.node.src);
                        if (imageContainer) {
                            this.renderer.renderImage(container, bounds, container.borders, imageContainer);
                        } else {
                            log("Error loading <img>", container.node.src);
                        }
                        break;
                    case "CANVAS":
                        this.renderer.renderImage(container, bounds, container.borders, {image: container.node});
                        break;
                    case "SELECT":
                    case "INPUT":
                    case "TEXTAREA":
                        this.paintFormValue(container);
                        break;
                }
            }, this);
        };

        NodeParser.prototype.paintCheckbox = function(container) {
            var b = container.parseBounds();

            var size = Math.min(b.width, b.height);
            var bounds = {width: size - 1, height: size - 1, top: b.top, left: b.left};
            var r = [3, 3];
            var radius = [r, r, r, r];
            var borders = [1,1,1,1].map(function(w) {
                return {color: new Color('#A5A5A5'), width: w};
            });

            var borderPoints = calculateCurvePoints(bounds, radius, borders);

            this.renderer.clip(container.backgroundClip, function() {
                this.renderer.rectangle(bounds.left + 1, bounds.top + 1, bounds.width - 2, bounds.height - 2, new Color("#DEDEDE"));
                this.renderer.renderBorders(calculateBorders(borders, bounds, borderPoints, radius));
                if (container.node.checked) {
                    this.renderer.font(new Color('#424242'), 'normal', 'normal', 'bold', (size - 3) + "px", 'arial');
                    this.renderer.text("\u2714", bounds.left + size / 6, bounds.top + size - 1);
                }
            }, this);
        };

        NodeParser.prototype.paintRadio = function(container) {
            var bounds = container.parseBounds();

            var size = Math.min(bounds.width, bounds.height) - 2;

            this.renderer.clip(container.backgroundClip, function() {
                this.renderer.circleStroke(bounds.left + 1, bounds.top + 1, size, new Color('#DEDEDE'), 1, new Color('#A5A5A5'));
                if (container.node.checked) {
                    this.renderer.circle(Math.ceil(bounds.left + size / 4) + 1, Math.ceil(bounds.top + size / 4) + 1, Math.floor(size / 2), new Color('#424242'));
                }
            }, this);
        };

        NodeParser.prototype.paintFormValue = function(container) {
            var value = container.getValue();
            if (value.length > 0) {
                var document = container.node.ownerDocument;
                var wrapper = document.createElement('html2canvaswrapper');
                var properties = ['lineHeight', 'textAlign', 'fontFamily', 'fontWeight', 'fontSize', 'color',
                    'paddingLeft', 'paddingTop', 'paddingRight', 'paddingBottom',
                    'width', 'height', 'borderLeftStyle', 'borderTopStyle', 'borderLeftWidth', 'borderTopWidth',
                    'boxSizing', 'whiteSpace', 'wordWrap'];

                properties.forEach(function(property) {
                    try {
                        wrapper.style[property] = container.css(property);
                    } catch(e) {
                        // Older IE has issues with "border"
                        log("html2canvas: Parse: Exception caught in renderFormValue: " + e.message);
                    }
                });
                var bounds = container.parseBounds();
                wrapper.style.position = "fixed";
                wrapper.style.left = bounds.left + "px";
                wrapper.style.top = bounds.top + "px";
                wrapper.textContent = value;
                document.body.appendChild(wrapper);
                this.paintText(new TextContainer(wrapper.firstChild, container));
                document.body.removeChild(wrapper);
            }
        };

        NodeParser.prototype.paintText = function(container) {
            container.applyTextTransform();
            var characters = punycode.ucs2.decode(container.node.data);
            var textList = (!this.options.letterRendering || noLetterSpacing(container)) && !hasUnicode(container.node.data) ? getWords(characters) : characters.map(function(character) {
                return punycode.ucs2.encode([character]);
            });

            var weight = container.parent.fontWeight();
            var size = container.parent.css('fontSize');
            var family = container.parent.css('fontFamily');
            var shadows = container.parent.parseTextShadows();

            this.renderer.font(container.parent.color('color'), container.parent.css('fontStyle'), container.parent.css('fontVariant'), weight, size, family);
            if (shadows.length) {
                // TODO: support multiple text shadows
                this.renderer.fontShadow(shadows[0].color, shadows[0].offsetX, shadows[0].offsetY, shadows[0].blur);
            } else {
                this.renderer.clearShadow();
            }

            this.renderer.clip(container.parent.clip, function() {
                textList.map(this.parseTextBounds(container), this).forEach(function(bounds, index) {
                    if (bounds) {
                        this.renderer.text(textList[index], bounds.left, bounds.bottom);
                        this.renderTextDecoration(container.parent, bounds, this.fontMetrics.getMetrics(family, size));
                    }
                }, this);
            }, this);
        };

        NodeParser.prototype.renderTextDecoration = function(container, bounds, metrics) {
            switch(container.css("textDecoration").split(" ")[0]) {
                case "underline":
                    // Draws a line at the baseline of the font
                    // TODO As some browsers display the line as more than 1px if the font-size is big, need to take that into account both in position and size
                    this.renderer.rectangle(bounds.left, Math.round(bounds.top + metrics.baseline + metrics.lineWidth), bounds.width, 1, container.color("color"));
                    break;
                case "overline":
                    this.renderer.rectangle(bounds.left, Math.round(bounds.top), bounds.width, 1, container.color("color"));
                    break;
                case "line-through":
                    // TODO try and find exact position for line-through
                    this.renderer.rectangle(bounds.left, Math.ceil(bounds.top + metrics.middle + metrics.lineWidth), bounds.width, 1, container.color("color"));
                    break;
            }
        };

        var borderColorTransforms = {
            inset: [
                ["darken", 0.60],
                ["darken", 0.10],
                ["darken", 0.10],
                ["darken", 0.60]
            ]
        };

        NodeParser.prototype.parseBorders = function(container) {
            var nodeBounds = container.parseBounds();
            var radius = getBorderRadiusData(container);
            var borders = ["Top", "Right", "Bottom", "Left"].map(function(side, index) {
                var style = container.css('border' + side + 'Style');
                var color = container.color('border' + side + 'Color');
                if (style === "inset" && color.isBlack()) {
                    color = new Color([255, 255, 255, color.a]); // this is wrong, but
                }
                var colorTransform = borderColorTransforms[style] ? borderColorTransforms[style][index] : null;
                return {
                    width: container.cssInt('border' + side + 'Width'),
                    color: colorTransform ? color[colorTransform[0]](colorTransform[1]) : color,
                    args: null
                };
            });
            var borderPoints = calculateCurvePoints(nodeBounds, radius, borders);

            return {
                clip: this.parseBackgroundClip(container, borderPoints, borders, radius, nodeBounds),
                borders: calculateBorders(borders, nodeBounds, borderPoints, radius)
            };
        };

        function calculateBorders(borders, nodeBounds, borderPoints, radius) {
            return borders.map(function(border, borderSide) {
                if (border.width > 0) {
                    var bx = nodeBounds.left;
                    var by = nodeBounds.top;
                    var bw = nodeBounds.width;
                    var bh = nodeBounds.height - (borders[2].width);

                    switch(borderSide) {
                        case 0:
                            // top border
                            bh = borders[0].width;
                            border.args = drawSide({
                                    c1: [bx, by],
                                    c2: [bx + bw, by],
                                    c3: [bx + bw - borders[1].width, by + bh],
                                    c4: [bx + borders[3].width, by + bh]
                                }, radius[0], radius[1],
                                borderPoints.topLeftOuter, borderPoints.topLeftInner, borderPoints.topRightOuter, borderPoints.topRightInner);
                            break;
                        case 1:
                            // right border
                            bx = nodeBounds.left + nodeBounds.width - (borders[1].width);
                            bw = borders[1].width;

                            border.args = drawSide({
                                    c1: [bx + bw, by],
                                    c2: [bx + bw, by + bh + borders[2].width],
                                    c3: [bx, by + bh],
                                    c4: [bx, by + borders[0].width]
                                }, radius[1], radius[2],
                                borderPoints.topRightOuter, borderPoints.topRightInner, borderPoints.bottomRightOuter, borderPoints.bottomRightInner);
                            break;
                        case 2:
                            // bottom border
                            by = (by + nodeBounds.height) - (borders[2].width);
                            bh = borders[2].width;
                            border.args = drawSide({
                                    c1: [bx + bw, by + bh],
                                    c2: [bx, by + bh],
                                    c3: [bx + borders[3].width, by],
                                    c4: [bx + bw - borders[3].width, by]
                                }, radius[2], radius[3],
                                borderPoints.bottomRightOuter, borderPoints.bottomRightInner, borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner);
                            break;
                        case 3:
                            // left border
                            bw = borders[3].width;
                            border.args = drawSide({
                                    c1: [bx, by + bh + borders[2].width],
                                    c2: [bx, by],
                                    c3: [bx + bw, by + borders[0].width],
                                    c4: [bx + bw, by + bh]
                                }, radius[3], radius[0],
                                borderPoints.bottomLeftOuter, borderPoints.bottomLeftInner, borderPoints.topLeftOuter, borderPoints.topLeftInner);
                            break;
                    }
                }
                return border;
            });
        }

        NodeParser.prototype.parseBackgroundClip = function(container, borderPoints, borders, radius, bounds) {
            var backgroundClip = container.css('backgroundClip'),
                borderArgs = [];

            switch(backgroundClip) {
                case "content-box":
                case "padding-box":
                    parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftInner, borderPoints.topRightInner, bounds.left + borders[3].width, bounds.top + borders[0].width);
                    parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightInner, borderPoints.bottomRightInner, bounds.left + bounds.width - borders[1].width, bounds.top + borders[0].width);
                    parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightInner, borderPoints.bottomLeftInner, bounds.left + bounds.width - borders[1].width, bounds.top + bounds.height - borders[2].width);
                    parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftInner, borderPoints.topLeftInner, bounds.left + borders[3].width, bounds.top + bounds.height - borders[2].width);
                    break;

                default:
                    parseCorner(borderArgs, radius[0], radius[1], borderPoints.topLeftOuter, borderPoints.topRightOuter, bounds.left, bounds.top);
                    parseCorner(borderArgs, radius[1], radius[2], borderPoints.topRightOuter, borderPoints.bottomRightOuter, bounds.left + bounds.width, bounds.top);
                    parseCorner(borderArgs, radius[2], radius[3], borderPoints.bottomRightOuter, borderPoints.bottomLeftOuter, bounds.left + bounds.width, bounds.top + bounds.height);
                    parseCorner(borderArgs, radius[3], radius[0], borderPoints.bottomLeftOuter, borderPoints.topLeftOuter, bounds.left, bounds.top + bounds.height);
                    break;
            }

            return borderArgs;
        };

        function getCurvePoints(x, y, r1, r2) {
            var kappa = 4 * ((Math.sqrt(2) - 1) / 3);
            var ox = (r1) * kappa, // control point offset horizontal
                oy = (r2) * kappa, // control point offset vertical
                xm = x + r1, // x-middle
                ym = y + r2; // y-middle
            return {
                topLeft: bezierCurve({x: x, y: ym}, {x: x, y: ym - oy}, {x: xm - ox, y: y}, {x: xm, y: y}),
                topRight: bezierCurve({x: x, y: y}, {x: x + ox,y: y}, {x: xm, y: ym - oy}, {x: xm, y: ym}),
                bottomRight: bezierCurve({x: xm, y: y}, {x: xm, y: y + oy}, {x: x + ox, y: ym}, {x: x, y: ym}),
                bottomLeft: bezierCurve({x: xm, y: ym}, {x: xm - ox, y: ym}, {x: x, y: y + oy}, {x: x, y:y})
            };
        }

        function calculateCurvePoints(bounds, borderRadius, borders) {
            var x = bounds.left,
                y = bounds.top,
                width = bounds.width,
                height = bounds.height,

                tlh = borderRadius[0][0] < width / 2 ? borderRadius[0][0] : width / 2,
                tlv = borderRadius[0][1] < height / 2 ? borderRadius[0][1] : height / 2,
                trh = borderRadius[1][0] < width / 2 ? borderRadius[1][0] : width / 2,
                trv = borderRadius[1][1] < height / 2 ? borderRadius[1][1] : height / 2,
                brh = borderRadius[2][0] < width / 2 ? borderRadius[2][0] : width / 2,
                brv = borderRadius[2][1] < height / 2 ? borderRadius[2][1] : height / 2,
                blh = borderRadius[3][0] < width / 2 ? borderRadius[3][0] : width / 2,
                blv = borderRadius[3][1] < height / 2 ? borderRadius[3][1] : height / 2;

            var topWidth = width - trh,
                rightHeight = height - brv,
                bottomWidth = width - brh,
                leftHeight = height - blv;

            return {
                topLeftOuter: getCurvePoints(x, y, tlh, tlv).topLeft.subdivide(0.5),
                topLeftInner: getCurvePoints(x + borders[3].width, y + borders[0].width, Math.max(0, tlh - borders[3].width), Math.max(0, tlv - borders[0].width)).topLeft.subdivide(0.5),
                topRightOuter: getCurvePoints(x + topWidth, y, trh, trv).topRight.subdivide(0.5),
                topRightInner: getCurvePoints(x + Math.min(topWidth, width + borders[3].width), y + borders[0].width, (topWidth > width + borders[3].width) ? 0 :trh - borders[3].width, trv - borders[0].width).topRight.subdivide(0.5),
                bottomRightOuter: getCurvePoints(x + bottomWidth, y + rightHeight, brh, brv).bottomRight.subdivide(0.5),
                bottomRightInner: getCurvePoints(x + Math.min(bottomWidth, width - borders[3].width), y + Math.min(rightHeight, height + borders[0].width), Math.max(0, brh - borders[1].width),  brv - borders[2].width).bottomRight.subdivide(0.5),
                bottomLeftOuter: getCurvePoints(x, y + leftHeight, blh, blv).bottomLeft.subdivide(0.5),
                bottomLeftInner: getCurvePoints(x + borders[3].width, y + leftHeight, Math.max(0, blh - borders[3].width), blv - borders[2].width).bottomLeft.subdivide(0.5)
            };
        }

        function bezierCurve(start, startControl, endControl, end) {
            var lerp = function (a, b, t) {
                return {
                    x: a.x + (b.x - a.x) * t,
                    y: a.y + (b.y - a.y) * t
                };
            };

            return {
                start: start,
                startControl: startControl,
                endControl: endControl,
                end: end,
                subdivide: function(t) {
                    var ab = lerp(start, startControl, t),
                        bc = lerp(startControl, endControl, t),
                        cd = lerp(endControl, end, t),
                        abbc = lerp(ab, bc, t),
                        bccd = lerp(bc, cd, t),
                        dest = lerp(abbc, bccd, t);
                    return [bezierCurve(start, ab, abbc, dest), bezierCurve(dest, bccd, cd, end)];
                },
                curveTo: function(borderArgs) {
                    borderArgs.push(["bezierCurve", startControl.x, startControl.y, endControl.x, endControl.y, end.x, end.y]);
                },
                curveToReversed: function(borderArgs) {
                    borderArgs.push(["bezierCurve", endControl.x, endControl.y, startControl.x, startControl.y, start.x, start.y]);
                }
            };
        }

        function drawSide(borderData, radius1, radius2, outer1, inner1, outer2, inner2) {
            var borderArgs = [];

            if (radius1[0] > 0 || radius1[1] > 0) {
                borderArgs.push(["line", outer1[1].start.x, outer1[1].start.y]);
                outer1[1].curveTo(borderArgs);
            } else {
                borderArgs.push([ "line", borderData.c1[0], borderData.c1[1]]);
            }

            if (radius2[0] > 0 || radius2[1] > 0) {
                borderArgs.push(["line", outer2[0].start.x, outer2[0].start.y]);
                outer2[0].curveTo(borderArgs);
                borderArgs.push(["line", inner2[0].end.x, inner2[0].end.y]);
                inner2[0].curveToReversed(borderArgs);
            } else {
                borderArgs.push(["line", borderData.c2[0], borderData.c2[1]]);
                borderArgs.push(["line", borderData.c3[0], borderData.c3[1]]);
            }

            if (radius1[0] > 0 || radius1[1] > 0) {
                borderArgs.push(["line", inner1[1].end.x, inner1[1].end.y]);
                inner1[1].curveToReversed(borderArgs);
            } else {
                borderArgs.push(["line", borderData.c4[0], borderData.c4[1]]);
            }

            return borderArgs;
        }

        function parseCorner(borderArgs, radius1, radius2, corner1, corner2, x, y) {
            if (radius1[0] > 0 || radius1[1] > 0) {
                borderArgs.push(["line", corner1[0].start.x, corner1[0].start.y]);
                corner1[0].curveTo(borderArgs);
                corner1[1].curveTo(borderArgs);
            } else {
                borderArgs.push(["line", x, y]);
            }

            if (radius2[0] > 0 || radius2[1] > 0) {
                borderArgs.push(["line", corner2[0].start.x, corner2[0].start.y]);
            }
        }

        function negativeZIndex(container) {
            return container.cssInt("zIndex") < 0;
        }

        function positiveZIndex(container) {
            return container.cssInt("zIndex") > 0;
        }

        function zIndex0(container) {
            return container.cssInt("zIndex") === 0;
        }

        function inlineLevel(container) {
            return ["inline", "inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
        }

        function isStackingContext(container) {
            return (container instanceof StackingContext);
        }

        function hasText(container) {
            return container.node.data.trim().length > 0;
        }

        function noLetterSpacing(container) {
            return (/^(normal|none|0px)$/.test(container.parent.css("letterSpacing")));
        }

        function getBorderRadiusData(container) {
            return ["TopLeft", "TopRight", "BottomRight", "BottomLeft"].map(function(side) {
                var value = container.css('border' + side + 'Radius');
                var arr = value.split(" ");
                if (arr.length <= 1) {
                    arr[1] = arr[0];
                }
                return arr.map(asInt);
            });
        }

        function renderableNode(node) {
            return (node.nodeType === Node.TEXT_NODE || node.nodeType === Node.ELEMENT_NODE);
        }

        function isPositionedForStacking(container) {
            var position = container.css("position");
            var zIndex = (["absolute", "relative", "fixed"].indexOf(position) !== -1) ? container.css("zIndex") : "auto";
            return zIndex !== "auto";
        }

        function isPositioned(container) {
            return container.css("position") !== "static";
        }

        function isFloating(container) {
            return container.css("float") !== "none";
        }

        function isInlineBlock(container) {
            return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
        }

        function not(callback) {
            var context = this;
            return function() {
                return !callback.apply(context, arguments);
            };
        }

        function isElement(container) {
            return container.node.nodeType === Node.ELEMENT_NODE;
        }

        function isPseudoElement(container) {
            return container.isPseudoElement === true;
        }

        function isTextNode(container) {
            return container.node.nodeType === Node.TEXT_NODE;
        }

        function zIndexSort(contexts) {
            return function(a, b) {
                return (a.cssInt("zIndex") + (contexts.indexOf(a) / contexts.length)) - (b.cssInt("zIndex") + (contexts.indexOf(b) / contexts.length));
            };
        }

        function hasOpacity(container) {
            return container.getOpacity() < 1;
        }

        function asInt(value) {
            return parseInt(value, 10);
        }

        function getWidth(border) {
            return border.width;
        }

        function nonIgnoredElement(nodeContainer) {
            return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR", "OPTION"].indexOf(nodeContainer.node.nodeName) === -1);
        }

        function flatten(arrays) {
            return [].concat.apply([], arrays);
        }

        function stripQuotes(content) {
            var first = content.substr(0, 1);
            return (first === content.substr(content.length - 1) && first.match(/'|"/)) ? content.substr(1, content.length - 2) : content;
        }

        function getWords(characters) {
            var words = [], i = 0, onWordBoundary = false, word;
            while(characters.length) {
                if (isWordBoundary(characters[i]) === onWordBoundary) {
                    word = characters.splice(0, i);
                    if (word.length) {
                        words.push(punycode.ucs2.encode(word));
                    }
                    onWordBoundary =! onWordBoundary;
                    i = 0;
                } else {
                    i++;
                }

                if (i >= characters.length) {
                    word = characters.splice(0, i);
                    if (word.length) {
                        words.push(punycode.ucs2.encode(word));
                    }
                }
            }
            return words;
        }

        function isWordBoundary(characterCode) {
            return [
                32, // <space>
                13, // \r
                10, // \n
                9, // \t
                45 // -
            ].indexOf(characterCode) !== -1;
        }

        function hasUnicode(string) {
            return (/[^\u0000-\u00ff]/).test(string);
        }

        module.exports = NodeParser;

    },{"./color":3,"./fontmetrics":7,"./log":13,"./nodecontainer":14,"./pseudoelementcontainer":18,"./stackingcontext":21,"./textcontainer":25,"./utils":26,"punycode":1}],16:[function(_dereq_,module,exports){
        var XHR = _dereq_('./xhr');
        var utils = _dereq_('./utils');
        var log = _dereq_('./log');
        var createWindowClone = _dereq_('./clone');
        var decode64 = utils.decode64;

        function Proxy(src, proxyUrl, document) {
            var supportsCORS = ('withCredentials' in new XMLHttpRequest());
            if (!proxyUrl) {
                return Promise.reject("No proxy configured");
            }
            var callback = createCallback(supportsCORS);
            var url = createProxyUrl(proxyUrl, src, callback);

            return supportsCORS ? XHR(url) : (jsonp(document, url, callback).then(function(response) {
                return decode64(response.content);
            }));
        }
        var proxyCount = 0;

        function ProxyURL(src, proxyUrl, document) {
            var supportsCORSImage = ('crossOrigin' in new Image());
            var callback = createCallback(supportsCORSImage);
            var url = createProxyUrl(proxyUrl, src, callback);
            return (supportsCORSImage ? Promise.resolve(url) : jsonp(document, url, callback).then(function(response) {
                return "data:" + response.type + ";base64," + response.content;
            }));
        }

        function jsonp(document, url, callback) {
            return new Promise(function(resolve, reject) {
                var s = document.createElement("script");
                var cleanup = function() {
                    delete window.html2canvas.proxy[callback];
                    document.body.removeChild(s);
                };
                window.html2canvas.proxy[callback] = function(response) {
                    cleanup();
                    resolve(response);
                };
                s.src = url;
                s.onerror = function(e) {
                    cleanup();
                    reject(e);
                };
                document.body.appendChild(s);
            });
        }

        function createCallback(useCORS) {
            return !useCORS ? "html2canvas_" + Date.now() + "_" + (++proxyCount) + "_" + Math.round(Math.random() * 100000) : "";
        }

        function createProxyUrl(proxyUrl, src, callback) {
            return proxyUrl + "?url=" + encodeURIComponent(src) + (callback.length ? "&callback=html2canvas.proxy." + callback : "");
        }

        function documentFromHTML(src) {
            return function(html) {
                var parser = new DOMParser(), doc;
                try {
                    doc = parser.parseFromString(html, "text/html");
                } catch(e) {
                    log("DOMParser not supported, falling back to createHTMLDocument");
                    doc = document.implementation.createHTMLDocument("");
                    try {
                        doc.open();
                        doc.write(html);
                        doc.close();
                    } catch(ee) {
                        log("createHTMLDocument write not supported, falling back to document.body.innerHTML");
                        doc.body.innerHTML = html; // ie9 doesnt support writing to documentElement
                    }
                }

                var b = doc.querySelector("base");
                if (!b || !b.href.host) {
                    var base = doc.createElement("base");
                    base.href = src;
                    doc.head.insertBefore(base, doc.head.firstChild);
                }

                return doc;
            };
        }

        function loadUrlDocument(src, proxy, document, width, height, options) {
            return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
                return createWindowClone(doc, document, width, height, options, 0, 0);
            });
        }

        exports.Proxy = Proxy;
        exports.ProxyURL = ProxyURL;
        exports.loadUrlDocument = loadUrlDocument;

    },{"./clone":2,"./log":13,"./utils":26,"./xhr":28}],17:[function(_dereq_,module,exports){
        var ProxyURL = _dereq_('./proxy').ProxyURL;

        function ProxyImageContainer(src, proxy) {
            var link = document.createElement("a");
            link.href = src;
            src = link.href;
            this.src = src;
            this.image = new Image();
            var self = this;
            this.promise = new Promise(function(resolve, reject) {
                self.image.crossOrigin = "Anonymous";
                self.image.onload = resolve;
                self.image.onerror = reject;

                new ProxyURL(src, proxy, document).then(function(url) {
                    self.image.src = url;
                })['catch'](reject);
            });
        }

        module.exports = ProxyImageContainer;

    },{"./proxy":16}],18:[function(_dereq_,module,exports){
        var NodeContainer = _dereq_('./nodecontainer');

        function PseudoElementContainer(node, parent, type) {
            NodeContainer.call(this, node, parent);
            this.isPseudoElement = true;
            this.before = type === ":before";
        }

        PseudoElementContainer.prototype.cloneTo = function(stack) {
            PseudoElementContainer.prototype.cloneTo.call(this, stack);
            stack.isPseudoElement = true;
            stack.before = this.before;
        };

        PseudoElementContainer.prototype = Object.create(NodeContainer.prototype);

        PseudoElementContainer.prototype.appendToDOM = function() {
            if (this.before) {
                this.parent.node.insertBefore(this.node, this.parent.node.firstChild);
            } else {
                this.parent.node.appendChild(this.node);
            }
            this.parent.node.className += " " + this.getHideClass();
        };

        PseudoElementContainer.prototype.cleanDOM = function() {
            this.node.parentNode.removeChild(this.node);
            this.parent.node.className = this.parent.node.className.replace(this.getHideClass(), "");
        };

        PseudoElementContainer.prototype.getHideClass = function() {
            return this["PSEUDO_HIDE_ELEMENT_CLASS_" + (this.before ? "BEFORE" : "AFTER")];
        };

        PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_BEFORE = "___html2canvas___pseudoelement_before";
        PseudoElementContainer.prototype.PSEUDO_HIDE_ELEMENT_CLASS_AFTER = "___html2canvas___pseudoelement_after";

        module.exports = PseudoElementContainer;

    },{"./nodecontainer":14}],19:[function(_dereq_,module,exports){
        var log = _dereq_('./log');

        function Renderer(width, height, images, options, document) {
            this.width = width;
            this.height = height;
            this.images = images;
            this.options = options;
            this.document = document;
        }

        Renderer.prototype.renderImage = function(container, bounds, borderData, imageContainer) {
            var paddingLeft = container.cssInt('paddingLeft'),
                paddingTop = container.cssInt('paddingTop'),
                paddingRight = container.cssInt('paddingRight'),
                paddingBottom = container.cssInt('paddingBottom'),
                borders = borderData.borders;

            var width = bounds.width - (borders[1].width + borders[3].width + paddingLeft + paddingRight);
            var height = bounds.height - (borders[0].width + borders[2].width + paddingTop + paddingBottom);
            this.drawImage(
                imageContainer,
                0,
                0,
                imageContainer.image.width || width,
                imageContainer.image.height || height,
                bounds.left + paddingLeft + borders[3].width,
                bounds.top + paddingTop + borders[0].width,
                width,
                height
            );
        };

        Renderer.prototype.renderBackground = function(container, bounds, borderData) {
            if (bounds.height > 0 && bounds.width > 0) {
                this.renderBackgroundColor(container, bounds);
                this.renderBackgroundImage(container, bounds, borderData);
            }
        };

        Renderer.prototype.renderBackgroundColor = function(container, bounds) {
            var color = container.color("backgroundColor");
            if (!color.isTransparent()) {
                this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, color);
            }
        };

        Renderer.prototype.renderBorders = function(borders) {
            borders.forEach(this.renderBorder, this);
        };

        Renderer.prototype.renderBorder = function(data) {
            if (!data.color.isTransparent() && data.args !== null) {
                this.drawShape(data.args, data.color);
            }
        };

        Renderer.prototype.renderBackgroundImage = function(container, bounds, borderData) {
            var backgroundImages = container.parseBackgroundImages();
            backgroundImages.reverse().forEach(function(backgroundImage, index, arr) {
                switch(backgroundImage.method) {
                    case "url":
                        var image = this.images.get(backgroundImage.args[0]);
                        if (image) {
                            this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1), borderData);
                        } else {
                            log("Error loading background-image", backgroundImage.args[0]);
                        }
                        break;
                    case "linear-gradient":
                    case "gradient":
                        var gradientImage = this.images.get(backgroundImage.value);
                        if (gradientImage) {
                            this.renderBackgroundGradient(gradientImage, bounds, borderData);
                        } else {
                            log("Error loading background-image", backgroundImage.args[0]);
                        }
                        break;
                    case "none":
                        break;
                    default:
                        log("Unknown background-image type", backgroundImage.args[0]);
                }
            }, this);
        };

        Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index, borderData) {
            var size = container.parseBackgroundSize(bounds, imageContainer.image, index);
            var position = container.parseBackgroundPosition(bounds, imageContainer.image, index, size);
            var repeat = container.parseBackgroundRepeat(index);
            switch (repeat) {
                case "repeat-x":
                case "repeat no-repeat":
                    this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + borderData[3], bounds.top + position.top + borderData[0], 99999, size.height, borderData);
                    break;
                case "repeat-y":
                case "no-repeat repeat":
                    this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + borderData[0], size.width, 99999, borderData);
                    break;
                case "no-repeat":
                    this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + position.top + borderData[0], size.width, size.height, borderData);
                    break;
                default:
                    this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left}, borderData[3], borderData[0]);
                    break;
            }
        };

        module.exports = Renderer;

    },{"./log":13}],20:[function(_dereq_,module,exports){
        var Renderer = _dereq_('../renderer');
        var LinearGradientContainer = _dereq_('../lineargradientcontainer');
        var log = _dereq_('../log');

        function CanvasRenderer(width, height) {
            Renderer.apply(this, arguments);
            this.canvas = this.options.canvas || this.document.createElement("canvas");
            if (!this.options.canvas) {
                this.canvas.width = width;
                this.canvas.height = height;
            }
            this.ctx = this.canvas.getContext("2d");
            this.taintCtx = this.document.createElement("canvas").getContext("2d");
            this.ctx.textBaseline = "bottom";
            this.variables = {};
            log("Initialized CanvasRenderer with size", width, "x", height);
        }

        CanvasRenderer.prototype = Object.create(Renderer.prototype);

        CanvasRenderer.prototype.setFillStyle = function(fillStyle) {
            this.ctx.fillStyle = typeof(fillStyle) === "object" && !!fillStyle.isColor ? fillStyle.toString() : fillStyle;
            return this.ctx;
        };

        CanvasRenderer.prototype.rectangle = function(left, top, width, height, color) {
            this.setFillStyle(color).fillRect(left, top, width, height);
        };

        CanvasRenderer.prototype.circle = function(left, top, size, color) {
            this.setFillStyle(color);
            this.ctx.beginPath();
            this.ctx.arc(left + size / 2, top + size / 2, size / 2, 0, Math.PI*2, true);
            this.ctx.closePath();
            this.ctx.fill();
        };

        CanvasRenderer.prototype.circleStroke = function(left, top, size, color, stroke, strokeColor) {
            this.circle(left, top, size, color);
            this.ctx.strokeStyle = strokeColor.toString();
            this.ctx.stroke();
        };

        CanvasRenderer.prototype.drawShape = function(shape, color) {
            this.shape(shape);
            this.setFillStyle(color).fill();
        };

        CanvasRenderer.prototype.taints = function(imageContainer) {
            if (imageContainer.tainted === null) {
                this.taintCtx.drawImage(imageContainer.image, 0, 0);
                try {
                    this.taintCtx.getImageData(0, 0, 1, 1);
                    imageContainer.tainted = false;
                } catch(e) {
                    this.taintCtx = document.createElement("canvas").getContext("2d");
                    imageContainer.tainted = true;
                }
            }

            return imageContainer.tainted;
        };

        CanvasRenderer.prototype.drawImage = function(imageContainer, sx, sy, sw, sh, dx, dy, dw, dh) {
            if (!this.taints(imageContainer) || this.options.allowTaint) {
                this.ctx.drawImage(imageContainer.image, sx, sy, sw, sh, dx, dy, dw, dh);
            }
        };

        CanvasRenderer.prototype.clip = function(shapes, callback, context) {
            this.ctx.save();
            shapes.filter(hasEntries).forEach(function(shape) {
                this.shape(shape).clip();
            }, this);
            callback.call(context);
            this.ctx.restore();
        };

        CanvasRenderer.prototype.shape = function(shape) {
            this.ctx.beginPath();
            shape.forEach(function(point, index) {
                if (point[0] === "rect") {
                    this.ctx.rect.apply(this.ctx, point.slice(1));
                } else {
                    this.ctx[(index === 0) ? "moveTo" : point[0] + "To" ].apply(this.ctx, point.slice(1));
                }
            }, this);
            this.ctx.closePath();
            return this.ctx;
        };

        CanvasRenderer.prototype.font = function(color, style, variant, weight, size, family) {
            this.setFillStyle(color).font = [style, variant, weight, size, family].join(" ").split(",")[0];
        };

        CanvasRenderer.prototype.fontShadow = function(color, offsetX, offsetY, blur) {
            this.setVariable("shadowColor", color.toString())
                .setVariable("shadowOffsetY", offsetX)
                .setVariable("shadowOffsetX", offsetY)
                .setVariable("shadowBlur", blur);
        };

        CanvasRenderer.prototype.clearShadow = function() {
            this.setVariable("shadowColor", "rgba(0,0,0,0)");
        };

        CanvasRenderer.prototype.setOpacity = function(opacity) {
            this.ctx.globalAlpha = opacity;
        };

        CanvasRenderer.prototype.setTransform = function(transform) {
            this.ctx.translate(transform.origin[0], transform.origin[1]);
            this.ctx.transform.apply(this.ctx, transform.matrix);
            this.ctx.translate(-transform.origin[0], -transform.origin[1]);
        };

        CanvasRenderer.prototype.setVariable = function(property, value) {
            if (this.variables[property] !== value) {
                this.variables[property] = this.ctx[property] = value;
            }

            return this;
        };

        CanvasRenderer.prototype.text = function(text, left, bottom) {
            this.ctx.fillText(text, left, bottom);
        };

        CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height, borderData) {
            var shape = [
                ["line", Math.round(left), Math.round(top)],
                ["line", Math.round(left + width), Math.round(top)],
                ["line", Math.round(left + width), Math.round(height + top)],
                ["line", Math.round(left), Math.round(height + top)]
            ];
            this.clip([shape], function() {
                this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds, borderData[3], borderData[0]);
            }, this);
        };

        CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds, borderLeft, borderTop) {
            var offsetX = Math.round(bounds.left + backgroundPosition.left + borderLeft), offsetY = Math.round(bounds.top + backgroundPosition.top + borderTop);
            this.setFillStyle(this.ctx.createPattern(this.resizeImage(imageContainer, size), "repeat"));
            this.ctx.translate(offsetX, offsetY);
            this.ctx.fill();
            this.ctx.translate(-offsetX, -offsetY);
        };

        CanvasRenderer.prototype.renderBackgroundGradient = function(gradientImage, bounds) {
            if (gradientImage instanceof LinearGradientContainer) {
                var gradient = this.ctx.createLinearGradient(
                    bounds.left + bounds.width * gradientImage.x0,
                    bounds.top + bounds.height * gradientImage.y0,
                    bounds.left +  bounds.width * gradientImage.x1,
                    bounds.top +  bounds.height * gradientImage.y1);
                gradientImage.colorStops.forEach(function(colorStop) {
                    gradient.addColorStop(colorStop.stop, colorStop.color.toString());
                });
                this.rectangle(bounds.left, bounds.top, bounds.width, bounds.height, gradient);
            }
        };

        CanvasRenderer.prototype.resizeImage = function(imageContainer, size) {
            var image = imageContainer.image;
            if(image.width === size.width && image.height === size.height) {
                return image;
            }

            var ctx, canvas = document.createElement('canvas');
            canvas.width = size.width;
            canvas.height = size.height;
            ctx = canvas.getContext("2d");
            ctx.drawImage(image, 0, 0, image.width, image.height, 0, 0, size.width, size.height );
            return canvas;
        };

        function hasEntries(array) {
            return array.length > 0;
        }

        module.exports = CanvasRenderer;

    },{"../lineargradientcontainer":12,"../log":13,"../renderer":19}],21:[function(_dereq_,module,exports){
        var NodeContainer = _dereq_('./nodecontainer');

        function StackingContext(hasOwnStacking, opacity, element, parent) {
            NodeContainer.call(this, element, parent);
            this.ownStacking = hasOwnStacking;
            this.contexts = [];
            this.children = [];
            this.opacity = (this.parent ? this.parent.stack.opacity : 1) * opacity;
        }

        StackingContext.prototype = Object.create(NodeContainer.prototype);

        StackingContext.prototype.getParentStack = function(context) {
            var parentStack = (this.parent) ? this.parent.stack : null;
            return parentStack ? (parentStack.ownStacking ? parentStack : parentStack.getParentStack(context)) : context.stack;
        };

        module.exports = StackingContext;

    },{"./nodecontainer":14}],22:[function(_dereq_,module,exports){
        function Support(document) {
            this.rangeBounds = this.testRangeBounds(document);
            this.cors = this.testCORS();
            this.svg = this.testSVG();
        }

        Support.prototype.testRangeBounds = function(document) {
            var range, testElement, rangeBounds, rangeHeight, support = false;

            if (document.createRange) {
                range = document.createRange();
                if (range.getBoundingClientRect) {
                    testElement = document.createElement('boundtest');
                    testElement.style.height = "123px";
                    testElement.style.display = "block";
                    document.body.appendChild(testElement);

                    range.selectNode(testElement);
                    rangeBounds = range.getBoundingClientRect();
                    rangeHeight = rangeBounds.height;

                    if (rangeHeight === 123) {
                        support = true;
                    }
                    document.body.removeChild(testElement);
                }
            }

            return support;
        };

        Support.prototype.testCORS = function() {
            return typeof((new Image()).crossOrigin) !== "undefined";
        };

        Support.prototype.testSVG = function() {
            var img = new Image();
            var canvas = document.createElement("canvas");
            var ctx =  canvas.getContext("2d");
            img.src = "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>";

            try {
                ctx.drawImage(img, 0, 0);
                canvas.toDataURL();
            } catch(e) {
                return false;
            }
            return true;
        };

        module.exports = Support;

    },{}],23:[function(_dereq_,module,exports){
        var XHR = _dereq_('./xhr');
        var decode64 = _dereq_('./utils').decode64;

        function SVGContainer(src) {
            this.src = src;
            this.image = null;
            var self = this;

            this.promise = this.hasFabric().then(function() {
                return (self.isInline(src) ? Promise.resolve(self.inlineFormatting(src)) : XHR(src));
            }).then(function(svg) {
                return new Promise(function(resolve) {
                    window.html2canvas.svg.fabric.loadSVGFromString(svg, self.createCanvas.call(self, resolve));
                });
            });
        }

        SVGContainer.prototype.hasFabric = function() {
            return !window.html2canvas.svg || !window.html2canvas.svg.fabric ? Promise.reject(new Error("html2canvas.svg.js is not loaded, cannot render svg")) : Promise.resolve();
        };

        SVGContainer.prototype.inlineFormatting = function(src) {
            return (/^data:image\/svg\+xml;base64,/.test(src)) ? this.decode64(this.removeContentType(src)) : this.removeContentType(src);
        };

        SVGContainer.prototype.removeContentType = function(src) {
            return src.replace(/^data:image\/svg\+xml(;base64)?,/,'');
        };

        SVGContainer.prototype.isInline = function(src) {
            return (/^data:image\/svg\+xml/i.test(src));
        };

        SVGContainer.prototype.createCanvas = function(resolve) {
            var self = this;
            return function (objects, options) {
                var canvas = new window.html2canvas.svg.fabric.StaticCanvas('c');
                self.image = canvas.lowerCanvasEl;
                canvas
                    .setWidth(options.width)
                    .setHeight(options.height)
                    .add(window.html2canvas.svg.fabric.util.groupSVGElements(objects, options))
                    .renderAll();
                resolve(canvas.lowerCanvasEl);
            };
        };

        SVGContainer.prototype.decode64 = function(str) {
            return (typeof(window.atob) === "function") ? window.atob(str) : decode64(str);
        };

        module.exports = SVGContainer;

    },{"./utils":26,"./xhr":28}],24:[function(_dereq_,module,exports){
        var SVGContainer = _dereq_('./svgcontainer');

        function SVGNodeContainer(node, _native) {
            this.src = node;
            this.image = null;
            var self = this;

            this.promise = _native ? new Promise(function(resolve, reject) {
                self.image = new Image();
                self.image.onload = resolve;
                self.image.onerror = reject;
                self.image.src = "data:image/svg+xml," + (new XMLSerializer()).serializeToString(node);
                if (self.image.complete === true) {
                    resolve(self.image);
                }
            }) : this.hasFabric().then(function() {
                return new Promise(function(resolve) {
                    window.html2canvas.svg.fabric.parseSVGDocument(node, self.createCanvas.call(self, resolve));
                });
            });
        }

        SVGNodeContainer.prototype = Object.create(SVGContainer.prototype);

        module.exports = SVGNodeContainer;

    },{"./svgcontainer":23}],25:[function(_dereq_,module,exports){
        var NodeContainer = _dereq_('./nodecontainer');

        function TextContainer(node, parent) {
            NodeContainer.call(this, node, parent);
        }

        TextContainer.prototype = Object.create(NodeContainer.prototype);

        TextContainer.prototype.applyTextTransform = function() {
            this.node.data = this.transform(this.parent.css("textTransform"));
        };

        TextContainer.prototype.transform = function(transform) {
            var text = this.node.data;
            switch(transform){
                case "lowercase":
                    return text.toLowerCase();
                case "capitalize":
                    return text.replace(/(^|\s|:|-|\(|\))([a-z])/g, capitalize);
                case "uppercase":
                    return text.toUpperCase();
                default:
                    return text;
            }
        };

        function capitalize(m, p1, p2) {
            if (m.length > 0) {
                return p1 + p2.toUpperCase();
            }
        }

        module.exports = TextContainer;

    },{"./nodecontainer":14}],26:[function(_dereq_,module,exports){
        exports.smallImage = function smallImage() {
            return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
        };

        exports.bind = function(callback, context) {
            return function() {
                return callback.apply(context, arguments);
            };
        };

        /*
 * base64-arraybuffer
 * https://github.com/niklasvh/base64-arraybuffer
 *
 * Copyright (c) 2012 Niklas von Hertzen
 * Licensed under the MIT license.
 */

        exports.decode64 = function(base64) {
            var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
            var len = base64.length, i, encoded1, encoded2, encoded3, encoded4, byte1, byte2, byte3;

            var output = "";

            for (i = 0; i < len; i+=4) {
                encoded1 = chars.indexOf(base64[i]);
                encoded2 = chars.indexOf(base64[i+1]);
                encoded3 = chars.indexOf(base64[i+2]);
                encoded4 = chars.indexOf(base64[i+3]);

                byte1 = (encoded1 << 2) | (encoded2 >> 4);
                byte2 = ((encoded2 & 15) << 4) | (encoded3 >> 2);
                byte3 = ((encoded3 & 3) << 6) | encoded4;
                if (encoded3 === 64) {
                    output += String.fromCharCode(byte1);
                } else if (encoded4 === 64 || encoded4 === -1) {
                    output += String.fromCharCode(byte1, byte2);
                } else{
                    output += String.fromCharCode(byte1, byte2, byte3);
                }
            }

            return output;
        };

        exports.getBounds = function(node) {
            if (node.getBoundingClientRect) {
                var clientRect = node.getBoundingClientRect();
                var width = node.offsetWidth == null ? clientRect.width : node.offsetWidth;
                return {
                    top: clientRect.top,
                    bottom: clientRect.bottom || (clientRect.top + clientRect.height),
                    right: clientRect.left + width,
                    left: clientRect.left,
                    width:  width,
                    height: node.offsetHeight == null ? clientRect.height : node.offsetHeight
                };
            }
            return {};
        };

        exports.offsetBounds = function(node) {
            var parent = node.offsetParent ? exports.offsetBounds(node.offsetParent) : {top: 0, left: 0};

            return {
                top: node.offsetTop + parent.top,
                bottom: node.offsetTop + node.offsetHeight + parent.top,
                right: node.offsetLeft + parent.left + node.offsetWidth,
                left: node.offsetLeft + parent.left,
                width: node.offsetWidth,
                height: node.offsetHeight
            };
        };

        exports.parseBackgrounds = function(backgroundImage) {
            var whitespace = ' \r\n\t',
                method, definition, prefix, prefix_i, block, results = [],
                mode = 0, numParen = 0, quote, args;
            var appendResult = function() {
                if(method) {
                    if (definition.substr(0, 1) === '"') {
                        definition = definition.substr(1, definition.length - 2);
                    }
                    if (definition) {
                        args.push(definition);
                    }
                    if (method.substr(0, 1) === '-' && (prefix_i = method.indexOf('-', 1 ) + 1) > 0) {
                        prefix = method.substr(0, prefix_i);
                        method = method.substr(prefix_i);
                    }
                    results.push({
                        prefix: prefix,
                        method: method.toLowerCase(),
                        value: block,
                        args: args,
                        image: null
                    });
                }
                args = [];
                method = prefix = definition = block = '';
            };
            args = [];
            method = prefix = definition = block = '';
            backgroundImage.split("").forEach(function(c) {
                if (mode === 0 && whitespace.indexOf(c) > -1) {
                    return;
                }
                switch(c) {
                    case '"':
                        if(!quote) {
                            quote = c;
                        } else if(quote === c) {
                            quote = null;
                        }
                        break;
                    case '(':
                        if(quote) {
                            break;
                        } else if(mode === 0) {
                            mode = 1;
                            block += c;
                            return;
                        } else {
                            numParen++;
                        }
                        break;
                    case ')':
                        if (quote) {
                            break;
                        } else if(mode === 1) {
                            if(numParen === 0) {
                                mode = 0;
                                block += c;
                                appendResult();
                                return;
                            } else {
                                numParen--;
                            }
                        }
                        break;

                    case ',':
                        if (quote) {
                            break;
                        } else if(mode === 0) {
                            appendResult();
                            return;
                        } else if (mode === 1) {
                            if (numParen === 0 && !method.match(/^url$/i)) {
                                args.push(definition);
                                definition = '';
                                block += c;
                                return;
                            }
                        }
                        break;
                }

                block += c;
                if (mode === 0) {
                    method += c;
                } else {
                    definition += c;
                }
            });

            appendResult();
            return results;
        };

    },{}],27:[function(_dereq_,module,exports){
        var GradientContainer = _dereq_('./gradientcontainer');

        function WebkitGradientContainer(imageData) {
            GradientContainer.apply(this, arguments);
            this.type = imageData.args[0] === "linear" ? GradientContainer.TYPES.LINEAR : GradientContainer.TYPES.RADIAL;
        }

        WebkitGradientContainer.prototype = Object.create(GradientContainer.prototype);

        module.exports = WebkitGradientContainer;

    },{"./gradientcontainer":9}],28:[function(_dereq_,module,exports){
        function XHR(url) {
            return new Promise(function(resolve, reject) {
                var xhr = new XMLHttpRequest();
                xhr.open('GET', url);

                xhr.onload = function() {
                    if (xhr.status === 200) {
                        resolve(xhr.responseText);
                    } else {
                        reject(new Error(xhr.statusText));
                    }
                };

                xhr.onerror = function() {
                    reject(new Error("Network Error"));
                };

                xhr.send();
            });
        }

        module.exports = XHR;

    },{}]},{},[4])(4)
});

 

posted @ 2021-07-30 13:51  农名工进城  阅读(2293)  评论(0编辑  收藏  举报