pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
973 lines (837 loc) • 26.5 kB
JavaScript
/**
* @licstart The following is the entire license notice for the
* Javascript code in this page
*
* Copyright 2019 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.
*
* @licend The above is the entire license notice for the
* Javascript code in this page
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.arrayByteLength = arrayByteLength;
exports.arraysToBytes = arraysToBytes;
exports.assert = assert;
exports.bytesToString = bytesToString;
exports.createPromiseCapability = createPromiseCapability;
exports.getVerbosityLevel = getVerbosityLevel;
exports.info = info;
exports.isArrayBuffer = isArrayBuffer;
exports.isArrayEqual = isArrayEqual;
exports.isBool = isBool;
exports.isEmptyObj = isEmptyObj;
exports.isNum = isNum;
exports.isString = isString;
exports.isSpace = isSpace;
exports.isSameOrigin = isSameOrigin;
exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
exports.isLittleEndian = isLittleEndian;
exports.isEvalSupported = isEvalSupported;
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;
exports.unreachable = unreachable;
Object.defineProperty(exports, "ReadableStream", {
enumerable: true,
get: function () {
return _streams_polyfill.ReadableStream;
}
});
exports.createObjectURL = exports.FormatError = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.NativeImageDecoding = exports.MissingPDFException = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationStateModelType = exports.AnnotationReviewState = exports.AnnotationReplyType = exports.AnnotationMarkedState = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VerbosityLevel = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = exports.BaseException = void 0;
require("./compatibility");
var _streams_polyfill = require("./streams_polyfill");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
var NativeImageDecoding = {
NONE: 'none',
DECODE: 'decode',
DISPLAY: 'display'
};
exports.NativeImageDecoding = NativeImageDecoding;
var PermissionFlag = {
PRINT: 0x04,
MODIFY_CONTENTS: 0x08,
COPY: 0x10,
MODIFY_ANNOTATIONS: 0x20,
FILL_INTERACTIVE_FORMS: 0x100,
COPY_FOR_ACCESSIBILITY: 0x200,
ASSEMBLE: 0x400,
PRINT_HIGH_QUALITY: 0x800
};
exports.PermissionFlag = PermissionFlag;
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
};
exports.TextRenderingMode = TextRenderingMode;
var ImageKind = {
GRAYSCALE_1BPP: 1,
RGB_24BPP: 2,
RGBA_32BPP: 3
};
exports.ImageKind = ImageKind;
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
};
exports.AnnotationType = AnnotationType;
var AnnotationStateModelType = {
MARKED: 'Marked',
REVIEW: 'Review'
};
exports.AnnotationStateModelType = AnnotationStateModelType;
var AnnotationMarkedState = {
MARKED: 'Marked',
UNMARKED: 'Unmarked'
};
exports.AnnotationMarkedState = AnnotationMarkedState;
var AnnotationReviewState = {
ACCEPTED: 'Accepted',
REJECTED: 'Rejected',
CANCELLED: 'Cancelled',
COMPLETED: 'Completed',
NONE: 'None'
};
exports.AnnotationReviewState = AnnotationReviewState;
var AnnotationReplyType = {
GROUP: 'Group',
REPLY: 'R'
};
exports.AnnotationReplyType = AnnotationReplyType;
var AnnotationFlag = {
INVISIBLE: 0x01,
HIDDEN: 0x02,
PRINT: 0x04,
NOZOOM: 0x08,
NOROTATE: 0x10,
NOVIEW: 0x20,
READONLY: 0x40,
LOCKED: 0x80,
TOGGLENOVIEW: 0x100,
LOCKEDCONTENTS: 0x200
};
exports.AnnotationFlag = AnnotationFlag;
var AnnotationFieldFlag = {
READONLY: 0x0000001,
REQUIRED: 0x0000002,
NOEXPORT: 0x0000004,
MULTILINE: 0x0001000,
PASSWORD: 0x0002000,
NOTOGGLETOOFF: 0x0004000,
RADIO: 0x0008000,
PUSHBUTTON: 0x0010000,
COMBO: 0x0020000,
EDIT: 0x0040000,
SORT: 0x0080000,
FILESELECT: 0x0100000,
MULTISELECT: 0x0200000,
DONOTSPELLCHECK: 0x0400000,
DONOTSCROLL: 0x0800000,
COMB: 0x1000000,
RICHTEXT: 0x2000000,
RADIOSINUNISON: 0x2000000,
COMMITONSELCHANGE: 0x4000000
};
exports.AnnotationFieldFlag = AnnotationFieldFlag;
var AnnotationBorderStyleType = {
SOLID: 1,
DASHED: 2,
BEVELED: 3,
INSET: 4,
UNDERLINE: 5
};
exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
var StreamType = {
UNKNOWN: 'UNKNOWN',
FLATE: 'FLATE',
LZW: 'LZW',
DCT: 'DCT',
JPX: 'JPX',
JBIG: 'JBIG',
A85: 'A85',
AHX: 'AHX',
CCF: 'CCF',
RLX: 'RLX'
};
exports.StreamType = StreamType;
var FontType = {
UNKNOWN: 'UNKNOWN',
TYPE1: 'TYPE1',
TYPE1C: 'TYPE1C',
CIDFONTTYPE0: 'CIDFONTTYPE0',
CIDFONTTYPE0C: 'CIDFONTTYPE0C',
TRUETYPE: 'TRUETYPE',
CIDFONTTYPE2: 'CIDFONTTYPE2',
TYPE3: 'TYPE3',
OPENTYPE: 'OPENTYPE',
TYPE0: 'TYPE0',
MMTYPE1: 'MMTYPE1'
};
exports.FontType = FontType;
var VerbosityLevel = {
ERRORS: 0,
WARNINGS: 1,
INFOS: 5
};
exports.VerbosityLevel = VerbosityLevel;
var CMapCompressionType = {
NONE: 0,
BINARY: 1,
STREAM: 2
};
exports.CMapCompressionType = CMapCompressionType;
var OPS = {
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
};
exports.OPS = OPS;
var UNSUPPORTED_FEATURES = {
unknown: 'unknown',
forms: 'forms',
javaScript: 'javaScript',
smask: 'smask',
shadingPattern: 'shadingPattern',
font: 'font'
};
exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
var PasswordResponses = {
NEED_PASSWORD: 1,
INCORRECT_PASSWORD: 2
};
exports.PasswordResponses = PasswordResponses;
var verbosity = VerbosityLevel.WARNINGS;
function setVerbosityLevel(level) {
if (Number.isInteger(level)) {
verbosity = level;
}
}
function getVerbosityLevel() {
return verbosity;
}
function info(msg) {
if (verbosity >= VerbosityLevel.INFOS) {
console.log("Info: ".concat(msg));
}
}
function warn(msg) {
if (verbosity >= VerbosityLevel.WARNINGS) {
console.log("Warning: ".concat(msg));
}
}
function unreachable(msg) {
throw new Error(msg);
}
function assert(cond, msg) {
if (!cond) {
unreachable(msg);
}
}
function isSameOrigin(baseUrl, otherUrl) {
var base;
try {
base = new URL(baseUrl);
if (!base.origin || base.origin === 'null') {
return false;
}
} catch (e) {
return false;
}
var other = new URL(otherUrl, base);
return base.origin === other.origin;
}
function _isValidProtocol(url) {
if (!url) {
return false;
}
switch (url.protocol) {
case 'http:':
case 'https:':
case 'ftp:':
case 'mailto:':
case 'tel:':
return true;
default:
return false;
}
}
function createValidAbsoluteUrl(url, baseUrl) {
if (!url) {
return null;
}
try {
var absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
if (_isValidProtocol(absoluteUrl)) {
return absoluteUrl;
}
} catch (ex) {}
return null;
}
function shadow(obj, prop, value) {
Object.defineProperty(obj, prop, {
value: value,
enumerable: true,
configurable: true,
writable: false
});
return value;
}
var BaseException = function BaseExceptionClosure() {
function BaseException(message) {
if (this.constructor === BaseException) {
unreachable('Cannot initialize BaseException.');
}
this.message = message;
this.name = this.constructor.name;
}
BaseException.prototype = new Error();
BaseException.constructor = BaseException;
return BaseException;
}();
exports.BaseException = BaseException;
var PasswordException =
/*#__PURE__*/
function (_BaseException) {
_inherits(PasswordException, _BaseException);
function PasswordException(msg, code) {
var _this;
_classCallCheck(this, PasswordException);
_this = _possibleConstructorReturn(this, _getPrototypeOf(PasswordException).call(this, msg));
_this.code = code;
return _this;
}
return PasswordException;
}(BaseException);
exports.PasswordException = PasswordException;
var UnknownErrorException =
/*#__PURE__*/
function (_BaseException2) {
_inherits(UnknownErrorException, _BaseException2);
function UnknownErrorException(msg, details) {
var _this2;
_classCallCheck(this, UnknownErrorException);
_this2 = _possibleConstructorReturn(this, _getPrototypeOf(UnknownErrorException).call(this, msg));
_this2.details = details;
return _this2;
}
return UnknownErrorException;
}(BaseException);
exports.UnknownErrorException = UnknownErrorException;
var InvalidPDFException =
/*#__PURE__*/
function (_BaseException3) {
_inherits(InvalidPDFException, _BaseException3);
function InvalidPDFException() {
_classCallCheck(this, InvalidPDFException);
return _possibleConstructorReturn(this, _getPrototypeOf(InvalidPDFException).apply(this, arguments));
}
return InvalidPDFException;
}(BaseException);
exports.InvalidPDFException = InvalidPDFException;
var MissingPDFException =
/*#__PURE__*/
function (_BaseException4) {
_inherits(MissingPDFException, _BaseException4);
function MissingPDFException() {
_classCallCheck(this, MissingPDFException);
return _possibleConstructorReturn(this, _getPrototypeOf(MissingPDFException).apply(this, arguments));
}
return MissingPDFException;
}(BaseException);
exports.MissingPDFException = MissingPDFException;
var UnexpectedResponseException =
/*#__PURE__*/
function (_BaseException5) {
_inherits(UnexpectedResponseException, _BaseException5);
function UnexpectedResponseException(msg, status) {
var _this3;
_classCallCheck(this, UnexpectedResponseException);
_this3 = _possibleConstructorReturn(this, _getPrototypeOf(UnexpectedResponseException).call(this, msg));
_this3.status = status;
return _this3;
}
return UnexpectedResponseException;
}(BaseException);
exports.UnexpectedResponseException = UnexpectedResponseException;
var FormatError =
/*#__PURE__*/
function (_BaseException6) {
_inherits(FormatError, _BaseException6);
function FormatError() {
_classCallCheck(this, FormatError);
return _possibleConstructorReturn(this, _getPrototypeOf(FormatError).apply(this, arguments));
}
return FormatError;
}(BaseException);
exports.FormatError = FormatError;
var AbortException =
/*#__PURE__*/
function (_BaseException7) {
_inherits(AbortException, _BaseException7);
function AbortException() {
_classCallCheck(this, AbortException);
return _possibleConstructorReturn(this, _getPrototypeOf(AbortException).apply(this, arguments));
}
return AbortException;
}(BaseException);
exports.AbortException = AbortException;
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;
}
function arrayByteLength(arr) {
if (arr.length !== undefined) {
return arr.length;
}
assert(arr.byteLength !== undefined);
return arr.byteLength;
}
function arraysToBytes(arr) {
var length = arr.length;
if (length === 1 && arr[0] instanceof Uint8Array) {
return arr[0];
}
var resultLength = 0;
for (var i = 0; i < length; i++) {
resultLength += arrayByteLength(arr[i]);
}
var pos = 0;
var data = new Uint8Array(resultLength);
for (var _i = 0; _i < length; _i++) {
var item = arr[_i];
if (!(item instanceof Uint8Array)) {
if (typeof item === 'string') {
item = stringToBytes(item);
} else {
item = new Uint8Array(item);
}
}
var 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) {
if (x <= 0) {
return 0;
}
return Math.ceil(Math.log2(x));
}
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;
}
function isLittleEndian() {
var buffer8 = new Uint8Array(4);
buffer8[0] = 1;
var view32 = new Uint32Array(buffer8.buffer, 0, 1);
return view32[0] === 1;
}
function isEvalSupported() {
try {
new Function('');
return true;
} catch (e) {
return false;
}
}
var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
var Util =
/*#__PURE__*/
function () {
function Util() {
_classCallCheck(this, Util);
}
_createClass(Util, null, [{
key: "makeCssRgb",
value: function makeCssRgb(r, g, b) {
rgbBuf[1] = r;
rgbBuf[3] = g;
rgbBuf[5] = b;
return rgbBuf.join('');
}
}, {
key: "transform",
value: function 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]];
}
}, {
key: "applyTransform",
value: function 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];
}
}, {
key: "applyInverseTransform",
value: function 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];
}
}, {
key: "getAxialAlignedBoundingBox",
value: function 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])];
}
}, {
key: "inverseTransform",
value: function 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];
}
}, {
key: "apply3dTransform",
value: function 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]];
}
}, {
key: "singularValueDecompose2dScale",
value: function singularValueDecompose2dScale(m) {
var transpose = [m[0], m[2], m[1], m[3]];
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];
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;
return [Math.sqrt(sx), Math.sqrt(sy)];
}
}, {
key: "normalizeRect",
value: function normalizeRect(rect) {
var r = rect.slice(0);
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;
}
}, {
key: "intersect",
value: function intersect(rect1, rect2) {
function compare(a, b) {
return a - b;
}
var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare);
var orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare);
var result = [];
rect1 = Util.normalizeRect(rect1);
rect2 = Util.normalizeRect(rect2);
if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
result[0] = orderedX[1];
result[2] = orderedX[2];
} else {
return null;
}
if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
result[1] = orderedY[1];
result[3] = orderedY[2];
} else {
return null;
}
return result;
}
}]);
return Util;
}();
exports.Util = Util;
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 length = str.length,
strBuf = [];
if (str[0] === '\xFE' && str[1] === '\xFF') {
for (var i = 2; i < length; i += 2) {
strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
}
} else {
for (var _i2 = 0; _i2 < length; ++_i2) {
var code = PDFStringTranslateTable[str.charCodeAt(_i2)];
strBuf.push(code ? String.fromCharCode(code) : str.charAt(_i2));
}
}
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 isNum(v) {
return typeof v === 'number';
}
function isString(v) {
return typeof v === 'string';
}
function isArrayBuffer(v) {
return _typeof(v) === 'object' && v !== null && v.byteLength !== undefined;
}
function isArrayEqual(arr1, arr2) {
if (arr1.length !== arr2.length) {
return false;
}
return arr1.every(function (element, index) {
return element === arr2[index];
});
}
function isSpace(ch) {
return ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A;
}
function createPromiseCapability() {
var capability = Object.create(null);
var isSettled = false;
Object.defineProperty(capability, 'settled', {
get: function get() {
return isSettled;
}
});
capability.promise = new Promise(function (resolve, reject) {
capability.resolve = function (data) {
isSettled = true;
resolve(data);
};
capability.reject = function (reason) {
isSettled = true;
reject(reason);
};
});
return capability;
}
var createObjectURL = function createObjectURLClosure() {
var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
return function createObjectURL(data, contentType) {
var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
if (!forceDataSchema && URL.createObjectURL) {
var blob = new Blob([data], {
type: contentType
});
return URL.createObjectURL(blob);
}
var buffer = "data:".concat(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;
};
}();
exports.createObjectURL = createObjectURL;