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Generic build of PDF.js library.
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pdfjs-dist/src/shared/util.js

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/* Copyright 2012 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals URL, global */
'use strict';
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define('pdfjs/shared/util', ['exports'], factory);
} else if (typeof exports !== 'undefined') {
factory(exports);
} else {
factory((root.pdfjsSharedUtil = {}));
}
}(this, function (exports) {
var globalScope = (typeof window !== 'undefined') ? window :
(typeof global !== 'undefined') ? global :
(typeof self !== 'undefined') ? self : this;
var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
var TextRenderingMode = {
FILL: 0,
STROKE: 1,
FILL_STROKE: 2,
INVISIBLE: 3,
FILL_ADD_TO_PATH: 4,
STROKE_ADD_TO_PATH: 5,
FILL_STROKE_ADD_TO_PATH: 6,
ADD_TO_PATH: 7,
FILL_STROKE_MASK: 3,
ADD_TO_PATH_FLAG: 4
};
var ImageKind = {
GRAYSCALE_1BPP: 1,
RGB_24BPP: 2,
RGBA_32BPP: 3
};
var AnnotationType = {
TEXT: 1,
LINK: 2,
FREETEXT: 3,
LINE: 4,
SQUARE: 5,
CIRCLE: 6,
POLYGON: 7,
POLYLINE: 8,
HIGHLIGHT: 9,
UNDERLINE: 10,
SQUIGGLY: 11,
STRIKEOUT: 12,
STAMP: 13,
CARET: 14,
INK: 15,
POPUP: 16,
FILEATTACHMENT: 17,
SOUND: 18,
MOVIE: 19,
WIDGET: 20,
SCREEN: 21,
PRINTERMARK: 22,
TRAPNET: 23,
WATERMARK: 24,
THREED: 25,
REDACT: 26
};
var AnnotationFlag = {
INVISIBLE: 0x01,
HIDDEN: 0x02,
PRINT: 0x04,
NOZOOM: 0x08,
NOROTATE: 0x10,
NOVIEW: 0x20,
READONLY: 0x40,
LOCKED: 0x80,
TOGGLENOVIEW: 0x100,
LOCKEDCONTENTS: 0x200
};
var AnnotationBorderStyleType = {
SOLID: 1,
DASHED: 2,
BEVELED: 3,
INSET: 4,
UNDERLINE: 5
};
var StreamType = {
UNKNOWN: 0,
FLATE: 1,
LZW: 2,
DCT: 3,
JPX: 4,
JBIG: 5,
A85: 6,
AHX: 7,
CCF: 8,
RL: 9
};
var FontType = {
UNKNOWN: 0,
TYPE1: 1,
TYPE1C: 2,
CIDFONTTYPE0: 3,
CIDFONTTYPE0C: 4,
TRUETYPE: 5,
CIDFONTTYPE2: 6,
TYPE3: 7,
OPENTYPE: 8,
TYPE0: 9,
MMTYPE1: 10
};
var VERBOSITY_LEVELS = {
errors: 0,
warnings: 1,
infos: 5
};
// All the possible operations for an operator list.
var OPS = {
// Intentionally start from 1 so it is easy to spot bad operators that will be
// 0's.
dependency: 1,
setLineWidth: 2,
setLineCap: 3,
setLineJoin: 4,
setMiterLimit: 5,
setDash: 6,
setRenderingIntent: 7,
setFlatness: 8,
setGState: 9,
save: 10,
restore: 11,
transform: 12,
moveTo: 13,
lineTo: 14,
curveTo: 15,
curveTo2: 16,
curveTo3: 17,
closePath: 18,
rectangle: 19,
stroke: 20,
closeStroke: 21,
fill: 22,
eoFill: 23,
fillStroke: 24,
eoFillStroke: 25,
closeFillStroke: 26,
closeEOFillStroke: 27,
endPath: 28,
clip: 29,
eoClip: 30,
beginText: 31,
endText: 32,
setCharSpacing: 33,
setWordSpacing: 34,
setHScale: 35,
setLeading: 36,
setFont: 37,
setTextRenderingMode: 38,
setTextRise: 39,
moveText: 40,
setLeadingMoveText: 41,
setTextMatrix: 42,
nextLine: 43,
showText: 44,
showSpacedText: 45,
nextLineShowText: 46,
nextLineSetSpacingShowText: 47,
setCharWidth: 48,
setCharWidthAndBounds: 49,
setStrokeColorSpace: 50,
setFillColorSpace: 51,
setStrokeColor: 52,
setStrokeColorN: 53,
setFillColor: 54,
setFillColorN: 55,
setStrokeGray: 56,
setFillGray: 57,
setStrokeRGBColor: 58,
setFillRGBColor: 59,
setStrokeCMYKColor: 60,
setFillCMYKColor: 61,
shadingFill: 62,
beginInlineImage: 63,
beginImageData: 64,
endInlineImage: 65,
paintXObject: 66,
markPoint: 67,
markPointProps: 68,
beginMarkedContent: 69,
beginMarkedContentProps: 70,
endMarkedContent: 71,
beginCompat: 72,
endCompat: 73,
paintFormXObjectBegin: 74,
paintFormXObjectEnd: 75,
beginGroup: 76,
endGroup: 77,
beginAnnotations: 78,
endAnnotations: 79,
beginAnnotation: 80,
endAnnotation: 81,
paintJpegXObject: 82,
paintImageMaskXObject: 83,
paintImageMaskXObjectGroup: 84,
paintImageXObject: 85,
paintInlineImageXObject: 86,
paintInlineImageXObjectGroup: 87,
paintImageXObjectRepeat: 88,
paintImageMaskXObjectRepeat: 89,
paintSolidColorImageMask: 90,
constructPath: 91
};
var verbosity = VERBOSITY_LEVELS.warnings;
function setVerbosityLevel(level) {
verbosity = level;
}
function getVerbosityLevel() {
return verbosity;
}
// A notice for devs. These are good for things that are helpful to devs, such
// as warning that Workers were disabled, which is important to devs but not
// end users.
function info(msg) {
if (verbosity >= VERBOSITY_LEVELS.infos) {
console.log('Info: ' + msg);
}
}
// Non-fatal warnings.
function warn(msg) {
if (verbosity >= VERBOSITY_LEVELS.warnings) {
console.log('Warning: ' + msg);
}
}
// Deprecated API function -- display regardless of the PDFJS.verbosity setting.
function deprecated(details) {
console.log('Deprecated API usage: ' + details);
}
// Fatal errors that should trigger the fallback UI and halt execution by
// throwing an exception.
function error(msg) {
if (verbosity >= VERBOSITY_LEVELS.errors) {
console.log('Error: ' + msg);
console.log(backtrace());
}
throw new Error(msg);
}
function backtrace() {
try {
throw new Error();
} catch (e) {
return e.stack ? e.stack.split('\n').slice(2).join('\n') : '';
}
}
function assert(cond, msg) {
if (!cond) {
error(msg);
}
}
var UNSUPPORTED_FEATURES = {
unknown: 'unknown',
forms: 'forms',
javaScript: 'javaScript',
smask: 'smask',
shadingPattern: 'shadingPattern',
font: 'font'
};
// Checks if URLs have the same origin. For non-HTTP based URLs, returns false.
function isSameOrigin(baseUrl, otherUrl) {
try {
var base = new URL(baseUrl);
if (!base.origin || base.origin === 'null') {
return false; // non-HTTP url
}
} catch (e) {
return false;
}
var other = new URL(otherUrl, base);
return base.origin === other.origin;
}
// Validates if URL is safe and allowed, e.g. to avoid XSS.
function isValidUrl(url, allowRelative) {
if (!url || typeof url !== 'string') {
return false;
}
// RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3.1)
// scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
var protocol = /^[a-z][a-z0-9+\-.]*(?=:)/i.exec(url);
if (!protocol) {
return allowRelative;
}
protocol = protocol[0].toLowerCase();
switch (protocol) {
case 'http':
case 'https':
case 'ftp':
case 'mailto':
case 'tel':
return true;
default:
return false;
}
}
function shadow(obj, prop, value) {
Object.defineProperty(obj, prop, { value: value,
enumerable: true,
configurable: true,
writable: false });
return value;
}
function getLookupTableFactory(initializer) {
var lookup;
return function () {
if (initializer) {
lookup = Object.create(null);
initializer(lookup);
initializer = null;
}
return lookup;
};
}
var PasswordResponses = {
NEED_PASSWORD: 1,
INCORRECT_PASSWORD: 2
};
var PasswordException = (function PasswordExceptionClosure() {
function PasswordException(msg, code) {
this.name = 'PasswordException';
this.message = msg;
this.code = code;
}
PasswordException.prototype = new Error();
PasswordException.constructor = PasswordException;
return PasswordException;
})();
var UnknownErrorException = (function UnknownErrorExceptionClosure() {
function UnknownErrorException(msg, details) {
this.name = 'UnknownErrorException';
this.message = msg;
this.details = details;
}
UnknownErrorException.prototype = new Error();
UnknownErrorException.constructor = UnknownErrorException;
return UnknownErrorException;
})();
var InvalidPDFException = (function InvalidPDFExceptionClosure() {
function InvalidPDFException(msg) {
this.name = 'InvalidPDFException';
this.message = msg;
}
InvalidPDFException.prototype = new Error();
InvalidPDFException.constructor = InvalidPDFException;
return InvalidPDFException;
})();
var MissingPDFException = (function MissingPDFExceptionClosure() {
function MissingPDFException(msg) {
this.name = 'MissingPDFException';
this.message = msg;
}
MissingPDFException.prototype = new Error();
MissingPDFException.constructor = MissingPDFException;
return MissingPDFException;
})();
var UnexpectedResponseException =
(function UnexpectedResponseExceptionClosure() {
function UnexpectedResponseException(msg, status) {
this.name = 'UnexpectedResponseException';
this.message = msg;
this.status = status;
}
UnexpectedResponseException.prototype = new Error();
UnexpectedResponseException.constructor = UnexpectedResponseException;
return UnexpectedResponseException;
})();
var NotImplementedException = (function NotImplementedExceptionClosure() {
function NotImplementedException(msg) {
this.message = msg;
}
NotImplementedException.prototype = new Error();
NotImplementedException.prototype.name = 'NotImplementedException';
NotImplementedException.constructor = NotImplementedException;
return NotImplementedException;
})();
var MissingDataException = (function MissingDataExceptionClosure() {
function MissingDataException(begin, end) {
this.begin = begin;
this.end = end;
this.message = 'Missing data [' + begin + ', ' + end + ')';
}
MissingDataException.prototype = new Error();
MissingDataException.prototype.name = 'MissingDataException';
MissingDataException.constructor = MissingDataException;
return MissingDataException;
})();
var XRefParseException = (function XRefParseExceptionClosure() {
function XRefParseException(msg) {
this.message = msg;
}
XRefParseException.prototype = new Error();
XRefParseException.prototype.name = 'XRefParseException';
XRefParseException.constructor = XRefParseException;
return XRefParseException;
})();
var NullCharactersRegExp = /\x00/g;
function removeNullCharacters(str) {
if (typeof str !== 'string') {
warn('The argument for removeNullCharacters must be a string.');
return str;
}
return str.replace(NullCharactersRegExp, '');
}
function bytesToString(bytes) {
assert(bytes !== null && typeof bytes === 'object' &&
bytes.length !== undefined, 'Invalid argument for bytesToString');
var length = bytes.length;
var MAX_ARGUMENT_COUNT = 8192;
if (length < MAX_ARGUMENT_COUNT) {
return String.fromCharCode.apply(null, bytes);
}
var strBuf = [];
for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
var chunk = bytes.subarray(i, chunkEnd);
strBuf.push(String.fromCharCode.apply(null, chunk));
}
return strBuf.join('');
}
function stringToBytes(str) {
assert(typeof str === 'string', 'Invalid argument for stringToBytes');
var length = str.length;
var bytes = new Uint8Array(length);
for (var i = 0; i < length; ++i) {
bytes[i] = str.charCodeAt(i) & 0xFF;
}
return bytes;
}
/**
* Gets length of the array (Array, Uint8Array, or string) in bytes.
* @param {Array|Uint8Array|string} arr
* @returns {number}
*/
function arrayByteLength(arr) {
if (arr.length !== undefined) {
return arr.length;
}
assert(arr.byteLength !== undefined);
return arr.byteLength;
}
/**
* Combines array items (arrays) into single Uint8Array object.
* @param {Array} arr - the array of the arrays (Array, Uint8Array, or string).
* @returns {Uint8Array}
*/
function arraysToBytes(arr) {
// Shortcut: if first and only item is Uint8Array, return it.
if (arr.length === 1 && (arr[0] instanceof Uint8Array)) {
return arr[0];
}
var resultLength = 0;
var i, ii = arr.length;
var item, itemLength ;
for (i = 0; i < ii; i++) {
item = arr[i];
itemLength = arrayByteLength(item);
resultLength += itemLength;
}
var pos = 0;
var data = new Uint8Array(resultLength);
for (i = 0; i < ii; i++) {
item = arr[i];
if (!(item instanceof Uint8Array)) {
if (typeof item === 'string') {
item = stringToBytes(item);
} else {
item = new Uint8Array(item);
}
}
itemLength = item.byteLength;
data.set(item, pos);
pos += itemLength;
}
return data;
}
function string32(value) {
return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,
(value >> 8) & 0xff, value & 0xff);
}
function log2(x) {
var n = 1, i = 0;
while (x > n) {
n <<= 1;
i++;
}
return i;
}
function readInt8(data, start) {
return (data[start] << 24) >> 24;
}
function readUint16(data, offset) {
return (data[offset] << 8) | data[offset + 1];
}
function readUint32(data, offset) {
return ((data[offset] << 24) | (data[offset + 1] << 16) |
(data[offset + 2] << 8) | data[offset + 3]) >>> 0;
}
// Lazy test the endianness of the platform
// NOTE: This will be 'true' for simulated TypedArrays
function isLittleEndian() {
var buffer8 = new Uint8Array(2);
buffer8[0] = 1;
var buffer16 = new Uint16Array(buffer8.buffer);
return (buffer16[0] === 1);
}
// Checks if it's possible to eval JS expressions.
function isEvalSupported() {
try {
/* jshint evil: true */
new Function('');
return true;
} catch (e) {
return false;
}
}
//#if !(FIREFOX || MOZCENTRAL || CHROME)
var Uint32ArrayView = (function Uint32ArrayViewClosure() {
function Uint32ArrayView(buffer, length) {
this.buffer = buffer;
this.byteLength = buffer.length;
this.length = length === undefined ? (this.byteLength >> 2) : length;
ensureUint32ArrayViewProps(this.length);
}
Uint32ArrayView.prototype = Object.create(null);
var uint32ArrayViewSetters = 0;
function createUint32ArrayProp(index) {
return {
get: function () {
var buffer = this.buffer, offset = index << 2;
return (buffer[offset] | (buffer[offset + 1] << 8) |
(buffer[offset + 2] << 16) | (buffer[offset + 3] << 24)) >>> 0;
},
set: function (value) {
var buffer = this.buffer, offset = index << 2;
buffer[offset] = value & 255;
buffer[offset + 1] = (value >> 8) & 255;
buffer[offset + 2] = (value >> 16) & 255;
buffer[offset + 3] = (value >>> 24) & 255;
}
};
}
function ensureUint32ArrayViewProps(length) {
while (uint32ArrayViewSetters < length) {
Object.defineProperty(Uint32ArrayView.prototype,
uint32ArrayViewSetters,
createUint32ArrayProp(uint32ArrayViewSetters));
uint32ArrayViewSetters++;
}
}
return Uint32ArrayView;
})();
exports.Uint32ArrayView = Uint32ArrayView;
//#endif
var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
var Util = (function UtilClosure() {
function Util() {}
var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
// makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids
// creating many intermediate strings.
Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
rgbBuf[1] = r;
rgbBuf[3] = g;
rgbBuf[5] = b;
return rgbBuf.join('');
};
// Concatenates two transformation matrices together and returns the result.
Util.transform = function Util_transform(m1, m2) {
return [
m1[0] * m2[0] + m1[2] * m2[1],
m1[1] * m2[0] + m1[3] * m2[1],
m1[0] * m2[2] + m1[2] * m2[3],
m1[1] * m2[2] + m1[3] * m2[3],
m1[0] * m2[4] + m1[2] * m2[5] + m1[4],
m1[1] * m2[4] + m1[3] * m2[5] + m1[5]
];
};
// For 2d affine transforms
Util.applyTransform = function Util_applyTransform(p, m) {
var xt = p[0] * m[0] + p[1] * m[2] + m[4];
var yt = p[0] * m[1] + p[1] * m[3] + m[5];
return [xt, yt];
};
Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
var d = m[0] * m[3] - m[1] * m[2];
var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
return [xt, yt];
};
// Applies the transform to the rectangle and finds the minimum axially
// aligned bounding box.
Util.getAxialAlignedBoundingBox =
function Util_getAxialAlignedBoundingBox(r, m) {
var p1 = Util.applyTransform(r, m);
var p2 = Util.applyTransform(r.slice(2, 4), m);
var p3 = Util.applyTransform([r[0], r[3]], m);
var p4 = Util.applyTransform([r[2], r[1]], m);
return [
Math.min(p1[0], p2[0], p3[0], p4[0]),
Math.min(p1[1], p2[1], p3[1], p4[1]),
Math.max(p1[0], p2[0], p3[0], p4[0]),
Math.max(p1[1], p2[1], p3[1], p4[1])
];
};
Util.inverseTransform = function Util_inverseTransform(m) {
var d = m[0] * m[3] - m[1] * m[2];
return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,
(m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
};
// Apply a generic 3d matrix M on a 3-vector v:
// | a b c | | X |
// | d e f | x | Y |
// | g h i | | Z |
// M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],
// with v as [X,Y,Z]
Util.apply3dTransform = function Util_apply3dTransform(m, v) {
return [
m[0] * v[0] + m[1] * v[1] + m[2] * v[2],
m[3] * v[0] + m[4] * v[1] + m[5] * v[2],
m[6] * v[0] + m[7] * v[1] + m[8] * v[2]
];
};
// This calculation uses Singular Value Decomposition.
// The SVD can be represented with formula A = USV. We are interested in the
// matrix S here because it represents the scale values.
Util.singularValueDecompose2dScale =
function Util_singularValueDecompose2dScale(m) {
var transpose = [m[0], m[2], m[1], m[3]];
// Multiply matrix m with its transpose.
var a = m[0] * transpose[0] + m[1] * transpose[2];
var b = m[0] * transpose[1] + m[1] * transpose[3];
var c = m[2] * transpose[0] + m[3] * transpose[2];
var d = m[2] * transpose[1] + m[3] * transpose[3];
// Solve the second degree polynomial to get roots.
var first = (a + d) / 2;
var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
var sx = first + second || 1;
var sy = first - second || 1;
// Scale values are the square roots of the eigenvalues.
return [Math.sqrt(sx), Math.sqrt(sy)];
};
// Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)
// For coordinate systems whose origin lies in the bottom-left, this
// means normalization to (BL,TR) ordering. For systems with origin in the
// top-left, this means (TL,BR) ordering.
Util.normalizeRect = function Util_normalizeRect(rect) {
var r = rect.slice(0); // clone rect
if (rect[0] > rect[2]) {
r[0] = rect[2];
r[2] = rect[0];
}
if (rect[1] > rect[3]) {
r[1] = rect[3];
r[3] = rect[1];
}
return r;
};
// Returns a rectangle [x1, y1, x2, y2] corresponding to the
// intersection of rect1 and rect2. If no intersection, returns 'false'
// The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]
Util.intersect = function Util_intersect(rect1, rect2) {
function compare(a, b) {
return a - b;
}
// Order points along the axes
var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
result = [];
rect1 = Util.normalizeRect(rect1);
rect2 = Util.normalizeRect(rect2);
// X: first and second points belong to different rectangles?
if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||
(orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {
// Intersection must be between second and third points
result[0] = orderedX[1];
result[2] = orderedX[2];
} else {
return false;
}
// Y: first and second points belong to different rectangles?
if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||
(orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {
// Intersection must be between second and third points
result[1] = orderedY[1];
result[3] = orderedY[2];
} else {
return false;
}
return result;
};
Util.sign = function Util_sign(num) {
return num < 0 ? -1 : 1;
};
var ROMAN_NUMBER_MAP = [
'', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM',
'', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC',
'', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'
];
/**
* Converts positive integers to (upper case) Roman numerals.
* @param {integer} number - The number that should be converted.
* @param {boolean} lowerCase - Indicates if the result should be converted
* to lower case letters. The default is false.
* @return {string} The resulting Roman number.
*/
Util.toRoman = function Util_toRoman(number, lowerCase) {
assert(isInt(number) && number > 0,
'The number should be a positive integer.');
var pos, romanBuf = [];
// Thousands
while (number >= 1000) {
number -= 1000;
romanBuf.push('M');
}
// Hundreds
pos = (number / 100) | 0;
number %= 100;
romanBuf.push(ROMAN_NUMBER_MAP[pos]);
// Tens
pos = (number / 10) | 0;
number %= 10;
romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
// Ones
romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
var romanStr = romanBuf.join('');
return (lowerCase ? romanStr.toLowerCase() : romanStr);
};
Util.appendToArray = function Util_appendToArray(arr1, arr2) {
Array.prototype.push.apply(arr1, arr2);
};
Util.prependToArray = function Util_prependToArray(arr1, arr2) {
Array.prototype.unshift.apply(arr1, arr2);
};
Util.extendObj = function extendObj(obj1, obj2) {
for (var key in obj2) {
obj1[key] = obj2[key];
}
};
Util.getInheritableProperty = function Util_getInheritableProperty(dict,
name) {
while (dict && !dict.has(name)) {
dict = dict.get('Parent');
}
if (!dict) {
return null;
}
return dict.get(name);
};
Util.inherit = function Util_inherit(sub, base, prototype) {
sub.prototype = Object.create(base.prototype);
sub.prototype.constructor = sub;
for (var prop in prototype) {
sub.prototype[prop] = prototype[prop];
}
};
Util.loadScript = function Util_loadScript(src, callback) {
var script = document.createElement('script');
var loaded = false;
script.setAttribute('src', src);
if (callback) {
script.onload = function() {
if (!loaded) {
callback();
}
loaded = true;
};
}
document.getElementsByTagName('head')[0].appendChild(script);
};
return Util;
})();
/**
* PDF page viewport created based on scale, rotation and offset.
* @class
* @alias PageViewport
*/
var PageViewport = (function PageViewportClosure() {
/**
* @constructor
* @private
* @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.
* @param scale {number} scale of the viewport.
* @param rotation {number} rotations of the viewport in degrees.
* @param offsetX {number} offset X
* @param offsetY {number} offset Y
* @param dontFlip {boolean} if true, axis Y will not be flipped.
*/
function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
this.viewBox = viewBox;
this.scale = scale;
this.rotation = rotation;
this.offsetX = offsetX;
this.offsetY = offsetY;
// creating transform to convert pdf coordinate system to the normal
// canvas like coordinates taking in account scale and rotation
var centerX = (viewBox[2] + viewBox[0]) / 2;
var centerY = (viewBox[3] + viewBox[1]) / 2;
var rotateA, rotateB, rotateC, rotateD;
rotation = rotation % 360;
rotation = rotation < 0 ? rotation + 360 : rotation;
switch (rotation) {
case 180:
rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;
break;
case 90:
rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;
break;
case 270:
rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;
break;
//case 0:
default:
rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;
break;
}
if (dontFlip) {
rotateC = -rotateC; rotateD = -rotateD;
}
var offsetCanvasX, offsetCanvasY;
var width, height;
if (rotateA === 0) {
offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
width = Math.abs(viewBox[3] - viewBox[1]) * scale;
height = Math.abs(viewBox[2] - viewBox[0]) * scale;
} else {
offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
width = Math.abs(viewBox[2] - viewBox[0]) * scale;
height = Math.abs(viewBox[3] - viewBox[1]) * scale;
}
// creating transform for the following operations:
// translate(-centerX, -centerY), rotate and flip vertically,
// scale, and translate(offsetCanvasX, offsetCanvasY)
this.transform = [
rotateA * scale,
rotateB * scale,
rotateC * scale,
rotateD * scale,
offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,
offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY
];
this.width = width;
this.height = height;
this.fontScale = scale;
}
PageViewport.prototype = /** @lends PageViewport.prototype */ {
/**
* Clones viewport with additional properties.
* @param args {Object} (optional) If specified, may contain the 'scale' or
* 'rotation' properties to override the corresponding properties in
* the cloned viewport.
* @returns {PageViewport} Cloned viewport.
*/
clone: function PageViewPort_clone(args) {
args = args || {};
var scale = 'scale' in args ? args.scale : this.scale;
var rotation = 'rotation' in args ? args.rotation : this.rotation;
return new PageViewport(this.viewBox.slice(), scale, rotation,
this.offsetX, this.offsetY, args.dontFlip);
},
/**
* Converts PDF point to the viewport coordinates. For examples, useful for
* converting PDF location into canvas pixel coordinates.
* @param x {number} X coordinate.
* @param y {number} Y coordinate.
* @returns {Object} Object that contains 'x' and 'y' properties of the
* point in the viewport coordinate space.
* @see {@link convertToPdfPoint}
* @see {@link convertToViewportRectangle}
*/
convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
return Util.applyTransform([x, y], this.transform);
},
/**
* Converts PDF rectangle to the viewport coordinates.
* @param rect {Array} xMin, yMin, xMax and yMax coordinates.
* @returns {Array} Contains corresponding coordinates of the rectangle
* in the viewport coordinate space.
* @see {@link convertToViewportPoint}
*/
convertToViewportRectangle:
function PageViewport_convertToViewportRectangle(rect) {
var tl = Util.applyTransform([rect[0], rect[1]], this.transform);
var br = Util.applyTransform([rect[2], rect[3]], this.transform);
return [tl[0], tl[1], br[0], br[1]];
},
/**
* Converts viewport coordinates to the PDF location. For examples, useful
* for converting canvas pixel location into PDF one.
* @param x {number} X coordinate.
* @param y {number} Y coordinate.
* @returns {Object} Object that contains 'x' and 'y' properties of the
* point in the PDF coordinate space.
* @see {@link convertToViewportPoint}
*/
convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {
return Util.applyInverseTransform([x, y], this.transform);
}
};
return PageViewport;
})();
var PDFStringTranslateTable = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,
0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,
0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,
0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC
];
function stringToPDFString(str) {
var i, n = str.length, strBuf = [];
if (str[0] === '\xFE' && str[1] === '\xFF') {
// UTF16BE BOM
for (i = 2; i < n; i += 2) {
strBuf.push(String.fromCharCode(
(str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));
}
} else {
for (i = 0; i < n; ++i) {
var code = PDFStringTranslateTable[str.charCodeAt(i)];
strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
}
}
return strBuf.join('');
}
function stringToUTF8String(str) {
return decodeURIComponent(escape(str));
}
function utf8StringToString(str) {
return unescape(encodeURIComponent(str));
}
function isEmptyObj(obj) {
for (var key in obj) {
return false;
}
return true;
}
function isBool(v) {
return typeof v === 'boolean';
}
function isInt(v) {
return typeof v === 'number' && ((v | 0) === v);
}
function isNum(v) {
return typeof v === 'number';
}
function isString(v) {
return typeof v === 'string';
}
function isArray(v) {
return v instanceof Array;
}
function isArrayBuffer(v) {
return typeof v === 'object' && v !== null && v.byteLength !== undefined;
}
// Checks if ch is one of the following characters: SPACE, TAB, CR or LF.
function isSpace(ch) {
return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A);
}
/**
* Promise Capability object.
*
* @typedef {Object} PromiseCapability
* @property {Promise} promise - A promise object.
* @property {function} resolve - Fullfills the promise.
* @property {function} reject - Rejects the promise.
*/
/**
* Creates a promise capability object.
* @alias createPromiseCapability
*
* @return {PromiseCapability} A capability object contains:
* - a Promise, resolve and reject methods.
*/
function createPromiseCapability() {
var capability = {};
capability.promise = new Promise(function (resolve, reject) {
capability.resolve = resolve;
capability.reject = reject;
});
return capability;
}
/**
* Polyfill for Promises:
* The following promise implementation tries to generally implement the
* Promise/A+ spec. Some notable differences from other promise libaries are:
* - There currently isn't a seperate deferred and promise object.
* - Unhandled rejections eventually show an error if they aren't handled.
*
* Based off of the work in:
* https://bugzilla.mozilla.org/show_bug.cgi?id=810490
*/
(function PromiseClosure() {
if (globalScope.Promise) {
// Promises existing in the DOM/Worker, checking presence of all/resolve
if (typeof globalScope.Promise.all !== 'function') {
globalScope.Promise.all = function (iterable) {
var count = 0, results = [], resolve, reject;
var promise = new globalScope.Promise(function (resolve_, reject_) {
resolve = resolve_;
reject = reject_;
});
iterable.forEach(function (p, i) {
count++;
p.then(function (result) {
results[i] = result;
count--;
if (count === 0) {
resolve(results);
}
}, reject);
});
if (count === 0) {
resolve(results);
}
return promise;
};
}
if (typeof globalScope.Promise.resolve !== 'function') {
globalScope.Promise.resolve = function (value) {
return new globalScope.Promise(function (resolve) { resolve(value); });
};
}
if (typeof globalScope.Promise.reject !== 'function') {
globalScope.Promise.reject = function (reason) {
return new globalScope.Promise(function (resolve, reject) {
reject(reason);
});
};
}
if (typeof globalScope.Promise.prototype.catch !== 'function') {
globalScope.Promise.prototype.catch = function (onReject) {
return globalScope.Promise.prototype.then(undefined, onReject);
};
}
return;
}
//#if !MOZCENTRAL
var STATUS_PENDING = 0;
var STATUS_RESOLVED = 1;
var STATUS_REJECTED = 2;
// In an attempt to avoid silent exceptions, unhandled rejections are
// tracked and if they aren't handled in a certain amount of time an
// error is logged.
var REJECTION_TIMEOUT = 500;
var HandlerManager = {
handlers: [],
running: false,
unhandledRejections: [],
pendingRejectionCheck: false,
scheduleHandlers: function scheduleHandlers(promise) {
if (promise._status === STATUS_PENDING) {
return;
}
this.handlers = this.handlers.concat(promise._handlers);
promise._handlers = [];
if (this.running) {
return;
}
this.running = true;
setTimeout(this.runHandlers.bind(this), 0);
},
runHandlers: function runHandlers() {
var RUN_TIMEOUT = 1; // ms
var timeoutAt = Date.now() + RUN_TIMEOUT;
while (this.handlers.length > 0) {
var handler = this.handlers.shift();
var nextStatus = handler.thisPromise._status;
var nextValue = handler.thisPromise._value;
try {
if (nextStatus === STATUS_RESOLVED) {
if (typeof handler.onResolve === 'function') {
nextValue = handler.onResolve(nextValue);
}
} else if (typeof handler.onReject === 'function') {
nextValue = handler.onReject(nextValue);
nextStatus = STATUS_RESOLVED;
if (handler.thisPromise._unhandledRejection) {
this.removeUnhandeledRejection(handler.thisPromise);
}
}
} catch (ex) {
nextStatus = STATUS_REJECTED;
nextValue = ex;
}
handler.nextPromise._updateStatus(nextStatus, nextValue);
if (Date.now() >= timeoutAt) {
break;
}
}
if (this.handlers.length > 0) {
setTimeout(this.runHandlers.bind(this), 0);
return;
}
this.running = false;
},
addUnhandledRejection: function addUnhandledRejection(promise) {
this.unhandledRejections.push({
promise: promise,
time: Date.now()
});
this.scheduleRejectionCheck();
},
removeUnhandeledRejection: function removeUnhandeledRejection(promise) {
promise._unhandledRejection = false;
for (var i = 0; i < this.unhandledRejections.length; i++) {
if (this.unhandledRejections[i].promise === promise) {
this.unhandledRejections.splice(i);
i--;
}
}
},
scheduleRejectionCheck: function scheduleRejectionCheck() {
if (this.pendingRejectionCheck) {
return;
}
this.pendingRejectionCheck = true;
setTimeout(function rejectionCheck() {
this.pendingRejectionCheck = false;
var now = Date.now();
for (var i = 0; i < this.unhandledRejections.length; i++) {
if (now - this.unhandledRejections[i].time > REJECTION_TIMEOUT) {
var unhandled = this.unhandledRejections[i].promise._value;
var msg = 'Unhandled rejection: ' + unhandled;
if (unhandled.stack) {
msg += '\n' + unhandled.stack;
}
warn(msg);
this.unhandledRejections.splice(i);
i--;
}
}
if (this.unhandledRejections.length) {
this.scheduleRejectionCheck();
}
}.bind(this), REJECTION_TIMEOUT);
}
};
function Promise(resolver) {
this._status = STATUS_PENDING;
this._handlers = [];
try {
resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
} catch (e) {
this._reject(e);
}
}
/**
* Builds a promise that is resolved when all the passed in promises are
* resolved.
* @param {array} promises array of data and/or promises to wait for.
* @return {Promise} New dependant promise.
*/
Promise.all = function Promise_all(promises) {
var resolveAll, rejectAll;
var deferred = new Promise(function (resolve, reject) {
resolveAll = resolve;
rejectAll = reject;
});
var unresolved = promises.length;
var results = [];
if (unresolved === 0) {
resolveAll(results);
return deferred;
}
function reject(reason) {
if (deferred._status === STATUS_REJECTED) {
return;
}
results = [];
rejectAll(reason);
}
for (var i = 0, ii = promises.length; i < ii; ++i) {
var promise = promises[i];
var resolve = (function(i) {
return function(value) {
if (deferred._status === STATUS_REJECTED) {
return;
}
results[i] = value;
unresolved--;
if (unresolved === 0) {
resolveAll(results);
}
};
})(i);
if (Promise.isPromise(promise)) {
promise.then(resolve, reject);
} else {
resolve(promise);
}
}
return deferred;
};
/**
* Checks if the value is likely a promise (has a 'then' function).
* @return {boolean} true if value is thenable
*/
Promise.isPromise = function Promise_isPromise(value) {
return value && typeof value.then === 'function';
};
/**
* Creates resolved promise
* @param value resolve value
* @returns {Promise}
*/
Promise.resolve = function Promise_resolve(value) {
return new Promise(function (resolve) { resolve(value); });
};
/**
* Creates rejected promise
* @param reason rejection value
* @returns {Promise}
*/
Promise.reject = function Promise_reject(reason) {
return new Promise(function (resolve, reject) { reject(reason); });
};
Promise.prototype = {
_status: null,
_value: null,
_handlers: null,
_unhandledRejection: null,
_updateStatus: function Promise__updateStatus(status, value) {
if (this._status === STATUS_RESOLVED ||
this._status === STATUS_REJECTED) {
return;
}
if (status === STATUS_RESOLVED &&
Promise.isPromise(value)) {
value.then(this._updateStatus.bind(this, STATUS_RESOLVED),
this._updateStatus.bind(this, STATUS_REJECTED));
return;
}
this._status = status;
this._value = value;
if (status === STATUS_REJECTED && this._handlers.length === 0) {
this._unhandledRejection = true;
HandlerManager.addUnhandledRejection(this);
}
HandlerManager.scheduleHandlers(this);
},
_resolve: function Promise_resolve(value) {
this._updateStatus(STATUS_RESOLVED, value);
},
_reject: function Promise_reject(reason) {
this._updateStatus(STATUS_REJECTED, reason);
},
then: function Promise_then(onResolve, onReject) {
var nextPromise = new Promise(function (resolve, reject) {
this.resolve = resolve;
this.reject = reject;
});
this._handlers.push({
thisPromise: this,
onResolve: onResolve,
onReject: onReject,
nextPromise: nextPromise
});
HandlerManager.scheduleHandlers(this);
return nextPromise;
},
catch: function Promise_catch(onReject) {
return this.then(undefined, onReject);
}
};
globalScope.Promise = Promise;
//#else
//throw new Error('DOM Promise is not present');
//#endif
})();
var StatTimer = (function StatTimerClosure() {
function rpad(str, pad, length) {
while (str.length < length) {
str += pad;
}
return str;
}
function StatTimer() {
this.started = Object.create(null);
this.times = [];
this.enabled = true;
}
StatTimer.prototype = {
time: function StatTimer_time(name) {
if (!this.enabled) {
return;
}
if (name in this.started) {
warn('Timer is already running for ' + name);
}
this.started[name] = Date.now();
},
timeEnd: function StatTimer_timeEnd(name) {
if (!this.enabled) {
return;
}
if (!(name in this.started)) {
warn('Timer has not been started for ' + name);
}
this.times.push({
'name': name,
'start': this.started[name],
'end': Date.now()
});
// Remove timer from started so it can be called again.
delete this.started[name];
},
toString: function StatTimer_toString() {
var i, ii;
var times = this.times;
var out = '';
// Find the longest name for padding purposes.
var longest = 0;
for (i = 0, ii = times.length; i < ii; ++i) {
var name = times[i]['name'];
if (name.length > longest) {
longest = name.length;
}
}
for (i = 0, ii = times.length; i < ii; ++i) {
var span = times[i];
var duration = span.end - span.start;
out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\n';
}
return out;
}
};
return StatTimer;
})();
var createBlob = function createBlob(data, contentType) {
if (typeof Blob !== 'undefined') {
return new Blob([data], { type: contentType });
}
warn('The "Blob" constructor is not supported.');
};
var createObjectURL = (function createObjectURLClosure() {
// Blob/createObjectURL is not available, falling back to data schema.
var digits =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
return function createObjectURL(data, contentType, forceDataSchema) {
if (!forceDataSchema &&
typeof URL !== 'undefined' && URL.createObjectURL) {
var blob = createBlob(data, contentType);
return URL.createObjectURL(blob);
}
var buffer = 'data:' + contentType + ';base64,';
for (var i = 0, ii = data.length; i < ii; i += 3) {
var b1 = data[i] & 0xFF;
var b2 = data[i + 1] & 0xFF;
var b3 = data[i + 2] & 0xFF;
var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;
buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
}
return buffer;
};
})();
function MessageHandler(sourceName, targetName, comObj) {
this.sourceName = sourceName;
this.targetName = targetName;
this.comObj = comObj;
this.callbackIndex = 1;
this.postMessageTransfers = true;
var callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
var ah = this.actionHandler = Object.create(null);
this._onComObjOnMessage = function messageHandlerComObjOnMessage(event) {
var data = event.data;
if (data.targetName !== this.sourceName) {
return;
}
if (data.isReply) {
var callbackId = data.callbackId;
if (data.callbackId in callbacksCapabilities) {
var callback = callbacksCapabilities[callbackId];
delete callbacksCapabilities[callbackId];
if ('error' in data) {
callback.reject(data.error);
} else {
callback.resolve(data.data);
}
} else {
error('Cannot resolve callback ' + callbackId);
}
} else if (data.action in ah) {
var action = ah[data.action];
if (data.callbackId) {
var sourceName = this.sourceName;
var targetName = data.sourceName;
Promise.resolve().then(function () {
return action[0].call(action[1], data.data);
}).then(function (result) {
comObj.postMessage({
sourceName: sourceName,
targetName: targetName,
isReply: true,
callbackId: data.callbackId,
data: result
});
}, function (reason) {
if (reason instanceof Error) {
// Serialize error to avoid "DataCloneError"
reason = reason + '';
}
comObj.postMessage({
sourceName: sourceName,
targetName: targetName,
isReply: true,
callbackId: data.callbackId,
error: reason
});
});
} else {
action[0].call(action[1], data.data);
}
} else {
error('Unknown action from worker: ' + data.action);
}
}.bind(this);
comObj.addEventListener('message', this._onComObjOnMessage);
}
MessageHandler.prototype = {
on: function messageHandlerOn(actionName, handler, scope) {
var ah = this.actionHandler;
if (ah[actionName]) {
error('There is already an actionName called "' + actionName + '"');
}
ah[actionName] = [handler, scope];
},
/**
* Sends a message to the comObj to invoke the action with the supplied data.
* @param {String} actionName Action to call.
* @param {JSON} data JSON data to send.
* @param {Array} [transfers] Optional list of transfers/ArrayBuffers
*/
send: function messageHandlerSend(actionName, data, transfers) {
var message = {
sourceName: this.sourceName,
targetName: this.targetName,
action: actionName,
data: data
};
this.postMessage(message, transfers);
},
/**
* Sends a message to the comObj to invoke the action with the supplied data.
* Expects that other side will callback with the response.
* @param {String} actionName Action to call.
* @param {JSON} data JSON data to send.
* @param {Array} [transfers] Optional list of transfers/ArrayBuffers.
* @returns {Promise} Promise to be resolved with response data.
*/
sendWithPromise:
function messageHandlerSendWithPromise(actionName, data, transfers) {
var callbackId = this.callbackIndex++;
var message = {
sourceName: this.sourceName,
targetName: this.targetName,
action: actionName,
data: data,
callbackId: callbackId
};
var capability = createPromiseCapability();
this.callbacksCapabilities[callbackId] = capability;
try {
this.postMessage(message, transfers);
} catch (e) {
capability.reject(e);
}
return capability.promise;
},
/**
* Sends raw message to the comObj.
* @private
* @param message {Object} Raw message.
* @param transfers List of transfers/ArrayBuffers, or undefined.
*/
postMessage: function (message, transfers) {
if (transfers && this.postMessageTransfers) {
this.comObj.postMessage(message, transfers);
} else {
this.comObj.postMessage(message);
}
},
destroy: function () {
this.comObj.removeEventListener('message', this._onComObjOnMessage);
}
};
function loadJpegStream(id, imageUrl, objs) {
var img = new Image();
img.onload = (function loadJpegStream_onloadClosure() {
objs.resolve(id, img);
});
img.onerror = (function loadJpegStream_onerrorClosure() {
objs.resolve(id, null);
warn('Error during JPEG image loading');
});
img.src = imageUrl;
}
//#if !(MOZCENTRAL)
//// Polyfill from https://github.com/Polymer/URL
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
(function checkURLConstructor(scope) {
/* jshint ignore:start */
// feature detect for URL constructor
var hasWorkingUrl = false;
try {
if (typeof URL === 'function' &&
typeof URL.prototype === 'object' &&
('origin' in URL.prototype)) {
var u = new URL('b', 'http://a');
u.pathname = 'c%20d';
hasWorkingUrl = u.href === 'http://a/c%20d';
}
} catch(e) { }
if (hasWorkingUrl)
return;
var relative = Object.create(null);
relative['ftp'] = 21;
relative['file'] = 0;
relative['gopher'] = 70;
relative['http'] = 80;
relative['https'] = 443;
relative['ws'] = 80;
relative['wss'] = 443;
var relativePathDotMapping = Object.create(null);
relativePathDotMapping['%2e'] = '.';
relativePathDotMapping['.%2e'] = '..';
relativePathDotMapping['%2e.'] = '..';
relativePathDotMapping['%2e%2e'] = '..';
function isRelativeScheme(scheme) {
return relative[scheme] !== undefined;
}
function invalid() {
clear.call(this);
this._isInvalid = true;
}
function IDNAToASCII(h) {
if ('' == h) {
invalid.call(this)
}
// XXX
return h.toLowerCase()
}
function percentEscape(c) {
var unicode = c.charCodeAt(0);
if (unicode > 0x20 &&
unicode < 0x7F &&
// " # < > ? `
[0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) == -1
) {
return c;
}
return encodeURIComponent(c);
}
function percentEscapeQuery(c) {
// XXX This actually needs to encode c using encoding and then
// convert the bytes one-by-one.
var unicode = c.charCodeAt(0);
if (unicode > 0x20 &&
unicode < 0x7F &&
// " # < > ` (do not escape '?')
[0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) == -1
) {
return c;
}
return encodeURIComponent(c);
}
var EOF = undefined,
ALPHA = /[a-zA-Z]/,
ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;
function parse(input, stateOverride, base) {
function err(message) {
errors.push(message)
}
var state = stateOverride || 'scheme start',
cursor = 0,
buffer = '',
seenAt = false,
seenBracket = false,
errors = [];
loop: while ((input[cursor - 1] != EOF || cursor == 0) && !this._isInvalid) {
var c = input[cursor];
switch (state) {
case 'scheme start':
if (c && ALPHA.test(c)) {
buffer += c.toLowerCase(); // ASCII-safe
state = 'scheme';
} else if (!stateOverride) {
buffer = '';
state = 'no scheme';
continue;
} else {
err('Invalid scheme.');
break loop;
}
break;
case 'scheme':
if (c && ALPHANUMERIC.test(c)) {
buffer += c.toLowerCase(); // ASCII-safe
} else if (':' == c) {
this._scheme = buffer;
buffer = '';
if (stateOverride) {
break loop;
}
if (isRelativeScheme(this._scheme)) {
this._isRelative = true;
}
if ('file' == this._scheme) {
state = 'relative';
} else if (this._isRelative && base && base._scheme == this._scheme) {
state = 'relative or authority';
} else if (this._isRelative) {
state = 'authority first slash';
} else {
state = 'scheme data';
}
} else if (!stateOverride) {
buffer = '';
cursor = 0;
state = 'no scheme';
continue;
} else if (EOF == c) {
break loop;
} else {
err('Code point not allowed in scheme: ' + c)
break loop;
}
break;
case 'scheme data':
if ('?' == c) {
this._query = '?';
state = 'query';
} else if ('#' == c) {
this._fragment = '#';
state = 'fragment';
} else {
// XXX error handling
if (EOF != c && '\t' != c && '\n' != c && '\r' != c) {
this._schemeData += percentEscape(c);
}
}
break;
case 'no scheme':
if (!base || !(isRelativeScheme(base._scheme))) {
err('Missing scheme.');
invalid.call(this);
} else {
state = 'relative';
continue;
}
break;
case 'relative or authority':
if ('/' == c && '/' == input[cursor+1]) {
state = 'authority ignore slashes';
} else {
err('Expected /, got: ' + c);
state = 'relative';
continue
}
break;
case 'relative':
this._isRelative = true;
if ('file' != this._scheme)
this._scheme = base._scheme;
if (EOF == c) {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = base._query;
this._username = base._username;
this._password = base._password;
break loop;
} else if ('/' == c || '\\' == c) {
if ('\\' == c)
err('\\ is an invalid code point.');
state = 'relative slash';
} else if ('?' == c) {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = '?';
this._username = base._username;
this._password = base._password;
state = 'query';
} else if ('#' == c) {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = base._query;
this._fragment = '#';
this._username = base._username;
this._password = base._password;
state = 'fragment';
} else {
var nextC = input[cursor+1]
var nextNextC = input[cursor+2]
if (
'file' != this._scheme || !ALPHA.test(c) ||
(nextC != ':' && nextC != '|') ||
(EOF != nextNextC && '/' != nextNextC && '\\' != nextNextC && '?' != nextNextC && '#' != nextNextC)) {
this._host = base._host;
this._port = base._port;
this._username = base._username;
this._password = base._password;
this._path = base._path.slice();
this._path.pop();
}
state = 'relative path';
continue;
}
break;
case 'relative slash':
if ('/' == c || '\\' == c) {
if ('\\' == c) {
err('\\ is an invalid code point.');
}
if ('file' == this._scheme) {
state = 'file host';
} else {
state = 'authority ignore slashes';
}
} else {
if ('file' != this._scheme) {
this._host = base._host;
this._port = base._port;
this._username = base._username;
this._password = base._password;
}
state = 'relative path';
continue;
}
break;
case 'authority first slash':
if ('/' == c) {
state = 'authority second slash';
} else {
err("Expected '/', got: " + c);
state = 'authority ignore slashes';
continue;
}
break;
case 'authority second slash':
state = 'authority ignore slashes';
if ('/' != c) {
err("Expected '/', got: " + c);
continue;
}
break;
case 'authority ignore slashes':
if ('/' != c && '\\' != c) {
state = 'authority';
continue;
} else {
err('Expected authority, got: ' + c);
}
break;
case 'authority':
if ('@' == c) {
if (seenAt) {
err('@ already seen.');
buffer += '%40';
}
seenAt = true;
for (var i = 0; i < buffer.length; i++) {
var cp = buffer[i];
if ('\t' == cp || '\n' == cp || '\r' == cp) {
err('Invalid whitespace in authority.');
continue;
}
// XXX check URL code points
if (':' == cp && null === this._password) {
this._password = '';
continue;
}
var tempC = percentEscape(cp);
(null !== this._password) ? this._password += tempC : this._username += tempC;
}
buffer = '';
} else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) {
cursor -= buffer.length;
buffer = '';
state = 'host';
continue;
} else {
buffer += c;
}
break;
case 'file host':
if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) {
if (buffer.length == 2 && ALPHA.test(buffer[0]) && (buffer[1] == ':' || buffer[1] == '|')) {
state = 'relative path';
} else if (buffer.length == 0) {
state = 'relative path start';
} else {
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'relative path start';
}
continue;
} else if ('\t' == c || '\n' == c || '\r' == c) {
err('Invalid whitespace in file host.');
} else {
buffer += c;
}
break;
case 'host':
case 'hostname':
if (':' == c && !seenBracket) {
// XXX host parsing
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'port';
if ('hostname' == stateOverride) {
break loop;
}
} else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c) {
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'relative path start';
if (stateOverride) {
break loop;
}
continue;
} else if ('\t' != c && '\n' != c && '\r' != c) {
if ('[' == c) {
seenBracket = true;
} else if (']' == c) {
seenBracket = false;
}
buffer += c;
} else {
err('Invalid code point in host/hostname: ' + c);
}
break;
case 'port':
if (/[0-9]/.test(c)) {
buffer += c;
} else if (EOF == c || '/' == c || '\\' == c || '?' == c || '#' == c || stateOverride) {
if ('' != buffer) {
var temp = parseInt(buffer, 10);
if (temp != relative[this._scheme]) {
this._port = temp + '';
}
buffer = '';
}
if (stateOverride) {
break loop;
}
state = 'relative path start';
continue;
} else if ('\t' == c || '\n' == c || '\r' == c) {
err('Invalid code point in port: ' + c);
} else {
invalid.call(this);
}
break;
case 'relative path start':
if ('\\' == c)
err("'\\' not allowed in path.");
state = 'relative path';
if ('/' != c && '\\' != c) {
continue;
}
break;
case 'relative path':
if (EOF == c || '/' == c || '\\' == c || (!stateOverride && ('?' == c || '#' == c))) {
if ('\\' == c) {
err('\\ not allowed in relative path.');
}
var tmp;
if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
buffer = tmp;
}
if ('..' == buffer) {
this._path.pop();
if ('/' != c && '\\' != c) {
this._path.push('');
}
} else if ('.' == buffer && '/' != c && '\\' != c) {
this._path.push('');
} else if ('.' != buffer) {
if ('file' == this._scheme && this._path.length == 0 && buffer.length == 2 && ALPHA.test(buffer[0]) && buffer[1] == '|') {
buffer = buffer[0] + ':';
}
this._path.push(buffer);
}
buffer = '';
if ('?' == c) {
this._query = '?';
state = 'query';
} else if ('#' == c) {
this._fragment = '#';
state = 'fragment';
}
} else if ('\t' != c && '\n' != c && '\r' != c) {
buffer += percentEscape(c);
}
break;
case 'query':
if (!stateOverride && '#' == c) {
this._fragment = '#';
state = 'fragment';
} else if (EOF != c && '\t' != c && '\n' != c && '\r' != c) {
this._query += percentEscapeQuery(c);
}
break;
case 'fragment':
if (EOF != c && '\t' != c && '\n' != c && '\r' != c) {
this._fragment += c;
}
break;
}
cursor++;
}
}
function clear() {
this._scheme = '';
this._schemeData = '';
this._username = '';
this._password = null;
this._host = '';
this._port = '';
this._path = [];
this._query = '';
this._fragment = '';
this._isInvalid = false;
this._isRelative = false;
}
// Does not process domain names or IP addresses.
// Does not handle encoding for the query parameter.
function jURL(url, base /* , encoding */) {
if (base !== undefined && !(base instanceof jURL))
base = new jURL(String(base));
this._url = url;
clear.call(this);
var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
// encoding = encoding || 'utf-8'
parse.call(this, input, null, base);
}
jURL.prototype = {
toString: function() {
return this.href;
},
get href() {
if (this._isInvalid)
return this._url;
var authority = '';
if ('' != this._username || null != this._password) {
authority = this._username +
(null != this._password ? ':' + this._password : '') + '@';
}
return this.protocol +
(this._isRelative ? '//' + authority + this.host : '') +
this.pathname + this._query + this._fragment;
},
set href(href) {
clear.call(this);
parse.call(this, href);
},
get protocol() {
return this._scheme + ':';
},
set protocol(protocol) {
if (this._isInvalid)
return;
parse.call(this, protocol + ':', 'scheme start');
},
get host() {
return this._isInvalid ? '' : this._port ?
this._host + ':' + this._port : this._host;
},
set host(host) {
if (this._isInvalid || !this._isRelative)
return;
parse.call(this, host, 'host');
},
get hostname() {
return this._host;
},
set hostname(hostname) {
if (this._isInvalid || !this._isRelative)
return;
parse.call(this, hostname, 'hostname');
},
get port() {
return this._port;
},
set port(port) {
if (this._isInvalid || !this._isRelative)
return;
parse.call(this, port, 'port');
},
get pathname() {
return this._isInvalid ? '' : this._isRelative ?
'/' + this._path.join('/') : this._schemeData;
},
set pathname(pathname) {
if (this._isInvalid || !this._isRelative)
return;
this._path = [];
parse.call(this, pathname, 'relative path start');
},
get search() {
return this._isInvalid || !this._query || '?' == this._query ?
'' : this._query;
},
set search(search) {
if (this._isInvalid || !this._isRelative)
return;
this._query = '?';
if ('?' == search[0])
search = search.slice(1);
parse.call(this, search, 'query');
},
get hash() {
return this._isInvalid || !this._fragment || '#' == this._fragment ?
'' : this._fragment;
},
set hash(hash) {
if (this._isInvalid)
return;
this._fragment = '#';
if ('#' == hash[0])
hash = hash.slice(1);
parse.call(this, hash, 'fragment');
},
get origin() {
var host;
if (this._isInvalid || !this._scheme) {
return '';
}
// javascript: Gecko returns String(""), WebKit/Blink String("null")
// Gecko throws error for "data://"
// data: Gecko returns "", Blink returns "data://", WebKit returns "null"
// Gecko returns String("") for file: mailto:
// WebKit/Blink returns String("SCHEME://") for file: mailto:
switch (this._scheme) {
case 'data':
case 'file':
case 'javascript':
case 'mailto':
return 'null';
}
host = this.host;
if (!host) {
return '';
}
return this._scheme + '://' + host;
}
};
// Copy over the static methods
var OriginalURL = scope.URL;
if (OriginalURL) {
jURL.createObjectURL = function(blob) {
// IE extension allows a second optional options argument.
// http://msdn.microsoft.com/en-us/library/ie/hh772302(v=vs.85).aspx
return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
};
jURL.revokeObjectURL = function(url) {
OriginalURL.revokeObjectURL(url);
};
}
scope.URL = jURL;
/* jshint ignore:end */
})(globalScope);
//#endif
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
exports.OPS = OPS;
exports.VERBOSITY_LEVELS = VERBOSITY_LEVELS;
exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
exports.AnnotationFlag = AnnotationFlag;
exports.AnnotationType = AnnotationType;
exports.FontType = FontType;
exports.ImageKind = ImageKind;
exports.InvalidPDFException = InvalidPDFException;
exports.MessageHandler = MessageHandler;
exports.MissingDataException = MissingDataException;
exports.MissingPDFException = MissingPDFException;
exports.NotImplementedException = NotImplementedException;
exports.PageViewport = PageViewport;
exports.PasswordException = PasswordException;
exports.PasswordResponses = PasswordResponses;
exports.StatTimer = StatTimer;
exports.StreamType = StreamType;
exports.TextRenderingMode = TextRenderingMode;
exports.UnexpectedResponseException = UnexpectedResponseException;
exports.UnknownErrorException = UnknownErrorException;
exports.Util = Util;
exports.XRefParseException = XRefParseException;
exports.arrayByteLength = arrayByteLength;
exports.arraysToBytes = arraysToBytes;
exports.assert = assert;
exports.bytesToString = bytesToString;
exports.createBlob = createBlob;
exports.createPromiseCapability = createPromiseCapability;
exports.createObjectURL = createObjectURL;
exports.deprecated = deprecated;
exports.error = error;
exports.getLookupTableFactory = getLookupTableFactory;
exports.getVerbosityLevel = getVerbosityLevel;
exports.globalScope = globalScope;
exports.info = info;
exports.isArray = isArray;
exports.isArrayBuffer = isArrayBuffer;
exports.isBool = isBool;
exports.isEmptyObj = isEmptyObj;
exports.isInt = isInt;
exports.isNum = isNum;
exports.isString = isString;
exports.isSpace = isSpace;
exports.isSameOrigin = isSameOrigin;
exports.isValidUrl = isValidUrl;
exports.isLittleEndian = isLittleEndian;
exports.isEvalSupported = isEvalSupported;
exports.loadJpegStream = loadJpegStream;
exports.log2 = log2;
exports.readInt8 = readInt8;
exports.readUint16 = readUint16;
exports.readUint32 = readUint32;
exports.removeNullCharacters = removeNullCharacters;
exports.setVerbosityLevel = setVerbosityLevel;
exports.shadow = shadow;
exports.string32 = string32;
exports.stringToBytes = stringToBytes;
exports.stringToPDFString = stringToPDFString;
exports.stringToUTF8String = stringToUTF8String;
exports.utf8StringToString = utf8StringToString;
exports.warn = warn;
}));