pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
1,858 lines (1,565 loc) • 369 kB
JavaScript
/**
* @licstart The following is the entire license notice for the
* Javascript code in this page
*
* Copyright 2020 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
*/
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define("pdfjs-dist/build/pdf", [], factory);
else if(typeof exports === 'object')
exports["pdfjs-dist/build/pdf"] = factory();
else
root["pdfjs-dist/build/pdf"] = root.pdfjsLib = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
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/******/ function __w_pdfjs_require__(moduleId) {
/******/
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/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __w_pdfjs_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __w_pdfjs_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __w_pdfjs_require__.d = function(exports, name, getter) {
/******/ if(!__w_pdfjs_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __w_pdfjs_require__.r = function(exports) {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // create a fake namespace object
/******/ // mode & 1: value is a module id, require it
/******/ // mode & 2: merge all properties of value into the ns
/******/ // mode & 4: return value when already ns object
/******/ // mode & 8|1: behave like require
/******/ __w_pdfjs_require__.t = function(value, mode) {
/******/ if(mode & 1) value = __w_pdfjs_require__(value);
/******/ if(mode & 8) return value;
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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/******/ __w_pdfjs_require__.r(ns);
/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __w_pdfjs_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ return ns;
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __w_pdfjs_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __w_pdfjs_require__.d(getter, 'a', getter);
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/******/ // Load entry module and return exports
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/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
var pdfjsVersion = '2.4.456';
var pdfjsBuild = '228a591c';
var pdfjsSharedUtil = __w_pdfjs_require__(1);
var pdfjsDisplayAPI = __w_pdfjs_require__(3);
var pdfjsDisplayTextLayer = __w_pdfjs_require__(16);
var pdfjsDisplayAnnotationLayer = __w_pdfjs_require__(17);
var pdfjsDisplayDisplayUtils = __w_pdfjs_require__(4);
var pdfjsDisplaySVG = __w_pdfjs_require__(18);
const pdfjsDisplayWorkerOptions = __w_pdfjs_require__(10);
const pdfjsDisplayAPICompatibility = __w_pdfjs_require__(6);
{
const {
isNodeJS
} = __w_pdfjs_require__(7);
if (isNodeJS) {
const PDFNodeStream = __w_pdfjs_require__(19).PDFNodeStream;
pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => {
return new PDFNodeStream(params);
});
} else {
const PDFNetworkStream = __w_pdfjs_require__(22).PDFNetworkStream;
let PDFFetchStream;
if (pdfjsDisplayDisplayUtils.isFetchSupported()) {
PDFFetchStream = __w_pdfjs_require__(23).PDFFetchStream;
}
pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => {
if (PDFFetchStream && pdfjsDisplayDisplayUtils.isValidFetchUrl(params.url)) {
return new PDFFetchStream(params);
}
return new PDFNetworkStream(params);
});
}
}
exports.build = pdfjsDisplayAPI.build;
exports.version = pdfjsDisplayAPI.version;
exports.getDocument = pdfjsDisplayAPI.getDocument;
exports.LoopbackPort = pdfjsDisplayAPI.LoopbackPort;
exports.PDFDataRangeTransport = pdfjsDisplayAPI.PDFDataRangeTransport;
exports.PDFWorker = pdfjsDisplayAPI.PDFWorker;
exports.renderTextLayer = pdfjsDisplayTextLayer.renderTextLayer;
exports.AnnotationLayer = pdfjsDisplayAnnotationLayer.AnnotationLayer;
exports.createPromiseCapability = pdfjsSharedUtil.createPromiseCapability;
exports.PasswordResponses = pdfjsSharedUtil.PasswordResponses;
exports.InvalidPDFException = pdfjsSharedUtil.InvalidPDFException;
exports.MissingPDFException = pdfjsSharedUtil.MissingPDFException;
exports.SVGGraphics = pdfjsDisplaySVG.SVGGraphics;
exports.NativeImageDecoding = pdfjsSharedUtil.NativeImageDecoding;
exports.CMapCompressionType = pdfjsSharedUtil.CMapCompressionType;
exports.PermissionFlag = pdfjsSharedUtil.PermissionFlag;
exports.UnexpectedResponseException = pdfjsSharedUtil.UnexpectedResponseException;
exports.OPS = pdfjsSharedUtil.OPS;
exports.VerbosityLevel = pdfjsSharedUtil.VerbosityLevel;
exports.UNSUPPORTED_FEATURES = pdfjsSharedUtil.UNSUPPORTED_FEATURES;
exports.createValidAbsoluteUrl = pdfjsSharedUtil.createValidAbsoluteUrl;
exports.createObjectURL = pdfjsSharedUtil.createObjectURL;
exports.removeNullCharacters = pdfjsSharedUtil.removeNullCharacters;
exports.shadow = pdfjsSharedUtil.shadow;
exports.Util = pdfjsSharedUtil.Util;
exports.RenderingCancelledException = pdfjsDisplayDisplayUtils.RenderingCancelledException;
exports.getFilenameFromUrl = pdfjsDisplayDisplayUtils.getFilenameFromUrl;
exports.LinkTarget = pdfjsDisplayDisplayUtils.LinkTarget;
exports.addLinkAttributes = pdfjsDisplayDisplayUtils.addLinkAttributes;
exports.loadScript = pdfjsDisplayDisplayUtils.loadScript;
exports.PDFDateString = pdfjsDisplayDisplayUtils.PDFDateString;
exports.GlobalWorkerOptions = pdfjsDisplayWorkerOptions.GlobalWorkerOptions;
exports.apiCompatibilityParams = pdfjsDisplayAPICompatibility.apiCompatibilityParams;
/***/ }),
/* 1 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
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.isSameOrigin = isSameOrigin;
exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
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;
exports.IsEvalSupportedCached = exports.IsLittleEndianCached = 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;
__w_pdfjs_require__(2);
const IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
const FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
const NativeImageDecoding = {
NONE: "none",
DECODE: "decode",
DISPLAY: "display"
};
exports.NativeImageDecoding = NativeImageDecoding;
const 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;
const 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;
const ImageKind = {
GRAYSCALE_1BPP: 1,
RGB_24BPP: 2,
RGBA_32BPP: 3
};
exports.ImageKind = ImageKind;
const 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;
const AnnotationStateModelType = {
MARKED: "Marked",
REVIEW: "Review"
};
exports.AnnotationStateModelType = AnnotationStateModelType;
const AnnotationMarkedState = {
MARKED: "Marked",
UNMARKED: "Unmarked"
};
exports.AnnotationMarkedState = AnnotationMarkedState;
const AnnotationReviewState = {
ACCEPTED: "Accepted",
REJECTED: "Rejected",
CANCELLED: "Cancelled",
COMPLETED: "Completed",
NONE: "None"
};
exports.AnnotationReviewState = AnnotationReviewState;
const AnnotationReplyType = {
GROUP: "Group",
REPLY: "R"
};
exports.AnnotationReplyType = AnnotationReplyType;
const AnnotationFlag = {
INVISIBLE: 0x01,
HIDDEN: 0x02,
PRINT: 0x04,
NOZOOM: 0x08,
NOROTATE: 0x10,
NOVIEW: 0x20,
READONLY: 0x40,
LOCKED: 0x80,
TOGGLENOVIEW: 0x100,
LOCKEDCONTENTS: 0x200
};
exports.AnnotationFlag = AnnotationFlag;
const 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;
const AnnotationBorderStyleType = {
SOLID: 1,
DASHED: 2,
BEVELED: 3,
INSET: 4,
UNDERLINE: 5
};
exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
const StreamType = {
UNKNOWN: "UNKNOWN",
FLATE: "FLATE",
LZW: "LZW",
DCT: "DCT",
JPX: "JPX",
JBIG: "JBIG",
A85: "A85",
AHX: "AHX",
CCF: "CCF",
RLX: "RLX"
};
exports.StreamType = StreamType;
const 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;
const VerbosityLevel = {
ERRORS: 0,
WARNINGS: 1,
INFOS: 5
};
exports.VerbosityLevel = VerbosityLevel;
const CMapCompressionType = {
NONE: 0,
BINARY: 1,
STREAM: 2
};
exports.CMapCompressionType = CMapCompressionType;
const 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;
const UNSUPPORTED_FEATURES = {
unknown: "unknown",
forms: "forms",
javaScript: "javaScript",
smask: "smask",
shadingPattern: "shadingPattern",
font: "font"
};
exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
const PasswordResponses = {
NEED_PASSWORD: 1,
INCORRECT_PASSWORD: 2
};
exports.PasswordResponses = PasswordResponses;
let 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: ${msg}`);
}
}
function warn(msg) {
if (verbosity >= VerbosityLevel.WARNINGS) {
console.log(`Warning: ${msg}`);
}
}
function unreachable(msg) {
throw new Error(msg);
}
function assert(cond, msg) {
if (!cond) {
unreachable(msg);
}
}
function isSameOrigin(baseUrl, otherUrl) {
let base;
try {
base = new URL(baseUrl);
if (!base.origin || base.origin === "null") {
return false;
}
} catch (e) {
return false;
}
const 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 {
const 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,
enumerable: true,
configurable: true,
writable: false
});
return value;
}
const 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;
class PasswordException extends BaseException {
constructor(msg, code) {
super(msg);
this.code = code;
}
}
exports.PasswordException = PasswordException;
class UnknownErrorException extends BaseException {
constructor(msg, details) {
super(msg);
this.details = details;
}
}
exports.UnknownErrorException = UnknownErrorException;
class InvalidPDFException extends BaseException {}
exports.InvalidPDFException = InvalidPDFException;
class MissingPDFException extends BaseException {}
exports.MissingPDFException = MissingPDFException;
class UnexpectedResponseException extends BaseException {
constructor(msg, status) {
super(msg);
this.status = status;
}
}
exports.UnexpectedResponseException = UnexpectedResponseException;
class FormatError extends BaseException {}
exports.FormatError = FormatError;
class AbortException extends BaseException {}
exports.AbortException = AbortException;
const 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");
const length = bytes.length;
const MAX_ARGUMENT_COUNT = 8192;
if (length < MAX_ARGUMENT_COUNT) {
return String.fromCharCode.apply(null, bytes);
}
const strBuf = [];
for (let i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
const chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
const 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");
const length = str.length;
const bytes = new Uint8Array(length);
for (let 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) {
const length = arr.length;
if (length === 1 && arr[0] instanceof Uint8Array) {
return arr[0];
}
let resultLength = 0;
for (let i = 0; i < length; i++) {
resultLength += arrayByteLength(arr[i]);
}
let pos = 0;
const data = new Uint8Array(resultLength);
for (let i = 0; i < length; i++) {
let item = arr[i];
if (!(item instanceof Uint8Array)) {
if (typeof item === "string") {
item = stringToBytes(item);
} else {
item = new Uint8Array(item);
}
}
const 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 isLittleEndian() {
const buffer8 = new Uint8Array(4);
buffer8[0] = 1;
const view32 = new Uint32Array(buffer8.buffer, 0, 1);
return view32[0] === 1;
}
const IsLittleEndianCached = {
get value() {
return shadow(this, "value", isLittleEndian());
}
};
exports.IsLittleEndianCached = IsLittleEndianCached;
function isEvalSupported() {
try {
new Function("");
return true;
} catch (e) {
return false;
}
}
const IsEvalSupportedCached = {
get value() {
return shadow(this, "value", isEvalSupported());
}
};
exports.IsEvalSupportedCached = IsEvalSupportedCached;
const rgbBuf = ["rgb(", 0, ",", 0, ",", 0, ")"];
class Util {
static makeCssRgb(r, g, b) {
rgbBuf[1] = r;
rgbBuf[3] = g;
rgbBuf[5] = b;
return rgbBuf.join("");
}
static 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]];
}
static applyTransform(p, m) {
const xt = p[0] * m[0] + p[1] * m[2] + m[4];
const yt = p[0] * m[1] + p[1] * m[3] + m[5];
return [xt, yt];
}
static applyInverseTransform(p, m) {
const d = m[0] * m[3] - m[1] * m[2];
const xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
const yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
return [xt, yt];
}
static getAxialAlignedBoundingBox(r, m) {
const p1 = Util.applyTransform(r, m);
const p2 = Util.applyTransform(r.slice(2, 4), m);
const p3 = Util.applyTransform([r[0], r[3]], m);
const 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])];
}
static inverseTransform(m) {
const 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];
}
static 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]];
}
static singularValueDecompose2dScale(m) {
const transpose = [m[0], m[2], m[1], m[3]];
const a = m[0] * transpose[0] + m[1] * transpose[2];
const b = m[0] * transpose[1] + m[1] * transpose[3];
const c = m[2] * transpose[0] + m[3] * transpose[2];
const d = m[2] * transpose[1] + m[3] * transpose[3];
const first = (a + d) / 2;
const second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
const sx = first + second || 1;
const sy = first - second || 1;
return [Math.sqrt(sx), Math.sqrt(sy)];
}
static normalizeRect(rect) {
const 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;
}
static intersect(rect1, rect2) {
function compare(a, b) {
return a - b;
}
const orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare);
const orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare);
const 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;
}
}
exports.Util = Util;
const 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) {
const length = str.length,
strBuf = [];
if (str[0] === "\xFE" && str[1] === "\xFF") {
for (let i = 2; i < length; i += 2) {
strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
}
} else if (str[0] === "\xFF" && str[1] === "\xFE") {
for (let i = 2; i < length; i += 2) {
strBuf.push(String.fromCharCode(str.charCodeAt(i + 1) << 8 | str.charCodeAt(i)));
}
} else {
for (let i = 0; i < length; ++i) {
const 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 (const 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 createPromiseCapability() {
const capability = Object.create(null);
let isSettled = false;
Object.defineProperty(capability, "settled", {
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;
}
const createObjectURL = function createObjectURLClosure() {
const digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return function createObjectURL(data, contentType, forceDataSchema = false) {
if (!forceDataSchema && URL.createObjectURL) {
const blob = new Blob([data], {
type: contentType
});
return URL.createObjectURL(blob);
}
let buffer = `data:${contentType};base64,`;
for (let i = 0, ii = data.length; i < ii; i += 3) {
const b1 = data[i] & 0xff;
const b2 = data[i + 1] & 0xff;
const b3 = data[i + 2] & 0xff;
const d1 = b1 >> 2,
d2 = (b1 & 3) << 4 | b2 >> 4;
const d3 = i + 1 < ii ? (b2 & 0xf) << 2 | b3 >> 6 : 64;
const d4 = i + 2 < ii ? b3 & 0x3f : 64;
buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
}
return buffer;
};
}();
exports.createObjectURL = createObjectURL;
/***/ }),
/* 2 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
;
/***/ }),
/* 3 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getDocument = getDocument;
exports.setPDFNetworkStreamFactory = setPDFNetworkStreamFactory;
exports.build = exports.version = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = void 0;
var _util = __w_pdfjs_require__(1);
var _display_utils = __w_pdfjs_require__(4);
var _font_loader = __w_pdfjs_require__(5);
var _api_compatibility = __w_pdfjs_require__(6);
var _canvas = __w_pdfjs_require__(8);
var _worker_options = __w_pdfjs_require__(10);
var _is_node = __w_pdfjs_require__(7);
var _message_handler = __w_pdfjs_require__(11);
var _metadata = __w_pdfjs_require__(12);
var _transport_stream = __w_pdfjs_require__(14);
var _webgl = __w_pdfjs_require__(15);
const DEFAULT_RANGE_CHUNK_SIZE = 65536;
const RENDERING_CANCELLED_TIMEOUT = 100;
let createPDFNetworkStream;
function setPDFNetworkStreamFactory(pdfNetworkStreamFactory) {
createPDFNetworkStream = pdfNetworkStreamFactory;
}
function getDocument(src) {
const task = new PDFDocumentLoadingTask();
let source;
if (typeof src === "string") {
source = {
url: src
};
} else if ((0, _util.isArrayBuffer)(src)) {
source = {
data: src
};
} else if (src instanceof PDFDataRangeTransport) {
source = {
range: src
};
} else {
if (typeof src !== "object") {
throw new Error("Invalid parameter in getDocument, " + "need either Uint8Array, string or a parameter object");
}
if (!src.url && !src.data && !src.range) {
throw new Error("Invalid parameter object: need either .data, .range or .url");
}
source = src;
}
const params = Object.create(null);
let rangeTransport = null,
worker = null;
for (const key in source) {
if (key === "url" && typeof window !== "undefined") {
params[key] = new URL(source[key], window.location).href;
continue;
} else if (key === "range") {
rangeTransport = source[key];
continue;
} else if (key === "worker") {
worker = source[key];
continue;
} else if (key === "data" && !(source[key] instanceof Uint8Array)) {
const pdfBytes = source[key];
if (typeof pdfBytes === "string") {
params[key] = (0, _util.stringToBytes)(pdfBytes);
} else if (typeof pdfBytes === "object" && pdfBytes !== null && !isNaN(pdfBytes.length)) {
params[key] = new Uint8Array(pdfBytes);
} else if ((0, _util.isArrayBuffer)(pdfBytes)) {
params[key] = new Uint8Array(pdfBytes);
} else {
throw new Error("Invalid PDF binary data: either typed array, " + "string or array-like object is expected in the " + "data property.");
}
continue;
}
params[key] = source[key];
}
params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
params.CMapReaderFactory = params.CMapReaderFactory || _display_utils.DOMCMapReaderFactory;
params.ignoreErrors = params.stopAtErrors !== true;
params.pdfBug = params.pdfBug === true;
const NativeImageDecoderValues = Object.values(_util.NativeImageDecoding);
if (params.nativeImageDecoderSupport === undefined || !NativeImageDecoderValues.includes(params.nativeImageDecoderSupport)) {
params.nativeImageDecoderSupport = _api_compatibility.apiCompatibilityParams.nativeImageDecoderSupport || _util.NativeImageDecoding.DECODE;
}
if (!Number.isInteger(params.maxImageSize)) {
params.maxImageSize = -1;
}
if (typeof params.isEvalSupported !== "boolean") {
params.isEvalSupported = true;
}
if (typeof params.disableFontFace !== "boolean") {
params.disableFontFace = _api_compatibility.apiCompatibilityParams.disableFontFace || false;
}
if (typeof params.disableRange !== "boolean") {
params.disableRange = false;
}
if (typeof params.disableStream !== "boolean") {
params.disableStream = false;
}
if (typeof params.disableAutoFetch !== "boolean") {
params.disableAutoFetch = false;
}
if (typeof params.disableCreateObjectURL !== "boolean") {
params.disableCreateObjectURL = _api_compatibility.apiCompatibilityParams.disableCreateObjectURL || false;
}
(0, _util.setVerbosityLevel)(params.verbosity);
if (!worker) {
const workerParams = {
verbosity: params.verbosity,
port: _worker_options.GlobalWorkerOptions.workerPort
};
worker = workerParams.port ? PDFWorker.fromPort(workerParams) : new PDFWorker(workerParams);
task._worker = worker;
}
const docId = task.docId;
worker.promise.then(function () {
if (task.destroyed) {
throw new Error("Loading aborted");
}
return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
if (task.destroyed) {
throw new Error("Loading aborted");
}
let networkStream;
if (rangeTransport) {
networkStream = new _transport_stream.PDFDataTransportStream({
length: params.length,
initialData: params.initialData,
progressiveDone: params.progressiveDone,
disableRange: params.disableRange,
disableStream: params.disableStream
}, rangeTransport);
} else if (!params.data) {
networkStream = createPDFNetworkStream({
url: params.url,
length: params.length,
httpHeaders: params.httpHeaders,
withCredentials: params.withCredentials,
rangeChunkSize: params.rangeChunkSize,
disableRange: params.disableRange,
disableStream: params.disableStream
});
}
const messageHandler = new _message_handler.MessageHandler(docId, workerId, worker.port);
messageHandler.postMessageTransfers = worker.postMessageTransfers;
const transport = new WorkerTransport(messageHandler, task, networkStream, params);
task._transport = transport;
messageHandler.send("Ready", null);
});
}).catch(task._capability.reject);
return task;
}
function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
if (worker.destroyed) {
return Promise.reject(new Error("Worker was destroyed"));
}
if (pdfDataRangeTransport) {
source.length = pdfDataRangeTransport.length;
source.initialData = pdfDataRangeTransport.initialData;
source.progressiveDone = pdfDataRangeTransport.progressiveDone;
}
return worker.messageHandler.sendWithPromise("GetDocRequest", {
docId,
apiVersion: '2.4.456',
source: {
data: source.data,
url: source.url,
password: source.password,
disableAutoFetch: source.disableAutoFetch,
rangeChunkSize: source.rangeChunkSize,
length: source.length
},
maxImageSize: source.maxImageSize,
disableFontFace: source.disableFontFace,
disableCreateObjectURL: source.disableCreateObjectURL,
postMessageTransfers: worker.postMessageTransfers,
docBaseUrl: source.docBaseUrl,
nativeImageDecoderSupport: source.nativeImageDecoderSupport,
ignoreErrors: source.ignoreErrors,
isEvalSupported: source.isEvalSupported
}).then(function (workerId) {
if (worker.destroyed) {
throw new Error("Worker was destroyed");
}
return workerId;
});
}
const PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
let nextDocumentId = 0;
class PDFDocumentLoadingTask {
constructor() {
this._capability = (0, _util.createPromiseCapability)();
this._transport = null;
this._worker = null;
this.docId = "d" + nextDocumentId++;
this.destroyed = false;
this.onPassword = null;
this.onProgress = null;
this.onUnsupportedFeature = null;
}
get promise() {
return this._capability.promise;
}
destroy() {
this.destroyed = true;
const transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
return transportDestroyed.then(() => {
this._transport = null;
if (this._worker) {
this._worker.destroy();
this._worker = null;
}
});
}
then(onFulfilled, onRejected) {
throw new Error("Removed API method: " + "PDFDocumentLoadingTask.then, use the `promise` getter instead.");
}
}
return PDFDocumentLoadingTask;
}();
class PDFDataRangeTransport {
constructor(length, initialData, progressiveDone = false) {
this.length = length;
this.initialData = initialData;
this.progressiveDone = progressiveDone;
this._rangeListeners = [];
this._progressListeners = [];
this._progressiveReadListeners = [];
this._progressiveDoneListeners = [];
this._readyCapability = (0, _util.createPromiseCapability)();
}
addRangeListener(listener) {
this._rangeListeners.push(listener);
}
addProgressListener(listener) {
this._progressListeners.push(listener);
}
addProgressiveReadListener(listener) {
this._progressiveReadListeners.push(listener);
}
addProgressiveDoneListener(listener) {
this._progressiveDoneListeners.push(listener);
}
onDataRange(begin, chunk) {
for (const listener of this._rangeListeners) {
listener(begin, chunk);
}
}
onDataProgress(loaded, total) {
this._readyCapability.promise.then(() => {
for (const listener of this._progressListeners) {
listener(loaded, total);
}
});
}
onDataProgressiveRead(chunk) {
this._readyCapability.promise.then(() => {
for (const listener of this._progressiveReadListeners) {
listener(chunk);
}
});
}
onDataProgressiveDone() {
this._readyCapability.promise.then(() => {
for (const listener of this._progressiveDoneListeners) {
listener();
}
});
}
transportReady() {
this._readyCapability.resolve();
}
requestDataRange(begin, end) {
(0, _util.unreachable)("Abstract method PDFDataRangeTransport.requestDataRange");
}
abort() {}
}
exports.PDFDataRangeTransport = PDFDataRangeTransport;
class PDFDocumentProxy {
constructor(pdfInfo, transport) {
this._pdfInfo = pdfInfo;
this._transport = transport;
}
get numPages() {
return this._pdfInfo.numPages;
}
get fingerprint() {
return this._pdfInfo.fingerprint;
}
getPage(pageNumber) {
return this._transport.getPage(pageNumber);
}
getPageIndex(ref) {
return this._transport.getPageIndex(ref);
}
getDestinations() {
return this._transport.getDestinations();
}
getDestination(id) {
return this._transport.getDestination(id);
}
getPageLabels() {
return this._transport.getPageLabels();
}
getPageLayout() {
return this._transport.getPageLayout();
}
getPageMode() {
return this._transport.getPageMode();
}
getViewerPreferences() {
return this._transport.getViewerPreferences();
}
getOpenAction() {
return this._transport.getOpenAction();
}
getOpenActionDestination() {
(0, _display_utils.deprecated)("getOpenActionDestination, use getOpenAction instead.");
return this.getOpenAction().then(function (openAction) {
return openAction && openAction.dest ? openAction.dest : null;
});
}
getAttachments() {
return this._transport.getAttachments();
}
getJavaScript() {
return this._transport.getJavaScript();
}
getOutline() {
return this._transport.getOutline();
}
getPermissions() {
return this._transport.getPermissions();
}
getMetadata() {
return this._transport.getMetadata();
}
getData() {
return this._transport.getData();
}
getDownloadInfo() {
return this._transport.downloadInfoCapability.promise;
}
getStats() {
return this._transport.getStats();
}
cleanup() {
return this._transport.startCleanup();
}
destroy() {
return this.loadingTask.destroy();
}
get loadingParams() {
return this._transport.loadingParams;
}
get loadingTask() {
return this._transport.loadingTask;
}
}
exports.PDFDocumentProxy = PDFDocumentProxy;
class PDFPageProxy {
constructor(pageIndex, pageInfo, transport, pdfBug = false) {
this._pageIndex = pageIndex;
this._pageInfo = pageInfo;
this._transport = transport;
this._stats = pdfBug ? new _display_utils.StatTimer() : null;
this._pdfBug = pdfBug;
this.commonObjs = transport.commonObjs;
this.objs = new PDFObjects();
this.cleanupAfterRender = false;
this.pendingCleanup = false;
this.intentStates = Object.create(null);
this.destroyed = false;
}
get pageNumber() {
return this._pageIndex + 1;
}
get rotate() {
return this._pageInfo.rotate;
}
get ref() {
return this._pageInfo.ref;
}
get userUnit() {
return this._pageInfo.userUnit;
}
get view() {
return this._pageInfo.view;
}
getViewport({
scale,
rotation = this.rotate,
offsetX = 0,
offsetY = 0,
dontFlip = false
} = {}) {
if (arguments.length > 1 || typeof arguments[0] === "number") {
throw new Error("PDFPageProxy.getViewport is called with obsolete arguments.");
}
return new _display_utils.PageViewport({
viewBox: this.view,
scale,
rotation,
offsetX,
offsetY,
dontFlip
});
}
getAnnotations({
intent = null
} = {}) {
if (!this.annotationsPromise || this.annotationsIntent !== intent) {
this.annotationsPromise = this._transport.getAnnotations(this._pageIndex, intent);
this.annotationsIntent = intent;
}
return this.annotationsPromise;
}
render({
canvasContext,
viewport,
intent = "display",
enableWebGL = false,
renderInteractiveForms = false,
transform = null,
imageLayer = null,
canvasFactory = null,
background = null
}) {
if (this._stats) {
this._stats.time("Overall");
}
const renderingIntent = intent === "print" ? "print" : "display";
this.pendingCleanup = false;
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
}
const intentState = this.intentStates[renderingIntent];
if (intentState.streamReaderCancelTimeout) {
clearTimeout(intentState.streamReaderCancelTimeout);
intentState.streamReaderCancelTimeout = null;
}
const canvasFactoryInstance = canvasFactory || new _display_utils.DOMCanvasFactory();
const webGLContext = new _webgl.WebGLContext({
enable: enableWebGL
});
if (!intentState.displayReadyCapability) {
intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
intentState.operatorList = {
fnArray: [],
argsArray: [],
lastChunk: false
};
if (this._stats) {
this._stats.time("Page Request");
}
this._pumpOperatorList({
pageIndex: this._pageIndex,
intent: renderingIntent,
renderInteractiveForms: renderInteractiveForms === true
});
}
const complete = error => {
const i = intentState.renderTasks.indexOf(internalRenderTask);
if (i >= 0) {
intentState.renderTasks.splice(i, 1);
}
if (this.cleanupAfterRender || renderingIntent === "print") {
this.pendingCleanup = true;
}
this._tryCleanup();
if (error) {
internalRenderTask.capability.reject(error);
this._abortOperatorList({
intentState,
reason: error
});
} else {
internalRenderTask.capability.resolve();
}
if (this._stats) {
this._stats.timeEnd("Rendering");
this._stats.timeEnd("Overall");
}
};
const internalRenderTask = new InternalRenderTask({
callback: complete,
params: {
canvasContext,
viewport,
transform,
imageLayer,
background
},
objs: this.objs,
commonObjs: this.commonObjs,
operatorList: intentState.operatorList,
pageIndex: this._pageIndex,
canvasFactory: canvasFactoryInstance,
webGLContext,
useRequestAnimationFrame: renderingIntent !== "print",
pdfBug: this._pdfBug
});
if (!intentState.renderTasks) {
intentState.renderTasks = [];
}
intentState.renderTasks.push(internalRenderTask);
const renderTask = internalRenderTask.task;
intentState.displayReadyCapability.promise.then(transparency => {
if (this.pendingCleanup) {
complete();
return;
}
if (this._stats) {
this._stats.time("Rendering");
}
internalRenderTask.initializeGraphics(transparency);
internalRenderTask.operatorListChanged();
}).catch(complete);
return renderTask;
}
getOperatorList() {
function operatorListChanged() {
if (intentState.operatorList.lastChunk) {
intentState.opListReadCapability.resolve(intentState.operatorList);
const i = intentState.renderTasks.indexOf(opListTask);
if (i >= 0) {
intentState.renderTasks.splice(i, 1);
}
}
}
const renderingIntent = "oplist";
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
}
const intentState = this.intentStates[renderingIntent];
let opListTask;
if (!intentState.opListReadCapability) {
opListTask = {};
opListTask.operatorListChanged = operatorListChanged;
intentState.opListReadCapability = (0, _util.createPromiseCapability)();
intentState.renderTasks = [];
intentState.renderTasks.push(opListTask);
intentState.operatorList = {
fnArray: [],
argsArray: [],
lastChunk: false
};
if (this._stats) {
this._stats.time("Page Request");
}
this._pumpOperatorList({
pageIndex: this._pageIndex,
intent: renderingIntent
});
}
return intentState.opListReadCapability.promise;
}
streamTextContent({
normalizeWhitespace = false,
disableCombineTextItems = false
} = {}) {
const TEXT_CONTENT_CHUNK_SIZE = 100;
return this._transport.messageHandler.sendWithStream("GetTextContent", {
pageIndex: this._pageIndex,
normalizeWhitespace: normalizeWhitespace === true,
combineTextItems: disableCombineTextItems !== true
}, {
highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
size(textContent) {
return textContent.items.length;
}
});
}
getTextContent(params = {}) {
const readableStream = this.streamTextContent(params);
return new Promise(function (resolve, reject) {
function pump() {
reader.read().then(function ({
value,
done
}) {
if (done) {
resolve(textContent);
return;
}
Object.assign(textContent.styles, value.styles);
textContent.items.push(...value.items);
pump();
}, reject);
}
const reader = readableStream.getReader();
const textContent = {
items: [],
styles: Object.create(null)
};
pump();
});
}
_destroy() {
this.destroyed = true;
this._transport.pageCache[this._pageIndex] = null;
const waitOn = [];
Object.keys(this.intentStates).forEach(intent => {
const intentState = this.intentStates[intent];
this._abortOperatorList({
intentState,
reason: new Error("Page was destroyed."),
force: true
});
if (intent === "oplist") {
return;
}
intentState.renderTasks.forEach(function (renderTask) {
const renderCompleted = renderTask.capability.promise.catch(function () {});
waitOn.push(renderCompleted);
renderTask.cancel();
});
});
this.objs.clear();
this.annotationsPromise = null;
this.pendingCleanup = false;
return Promise.all(waitOn);
}
cleanup(resetStats = false) {
this.pendingCleanup = true;
return this._tryCleanup(resetStats);
}
_tryCleanup(resetStats = false) {
if (!this.pendingCleanup || Object.keys(this.intentStates).some(intent => {
const intentState = this.intentStates[intent];
return intentState.renderTasks.length !== 0 || !intentState.operatorList.lastChunk;
})) {
return false;
}
Object.keys(this.intentStates).forEach(intent => {
delete this.intentStates[intent];
});
this.objs.clear();
this.annotationsPromise = null;
if (resetStats && this._stats) {
this._stats = new _display_utils.StatTimer();
}
this.pendingCleanup = false;
return true;
}
_startRenderPage(transparency, intent) {
const intentState = this.intentStates[intent];
if (!intentState) {
return;
}
if (this._stats) {
this._stats.timeEnd("Page Request");
}
if (intentState.displayReadyCapability) {
intentState.displayReadyCapability.resolve(transparency);
}
}
_renderPageChunk(operatorListChunk, intentState) {
for (let i = 0, ii = operatorListChunk.length; i < ii; i++) {
intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
in