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/**
* @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 = {};
/******/
/******/ // The require function
/******/ function __w_pdfjs_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ 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;
/******/ var ns = Object.create(null);
/******/ __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);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __w_pdfjs_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __w_pdfjs_require__.p = "";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __w_pdfjs_require__(__w_pdfjs_require__.s = 0);
/******/ })
/************************************************************************/
/******/ ([
/* 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]);
intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);
}
intentState.operatorList.lastChunk = operatorListChunk.lastChunk;
for (let i = 0; i < intentState.renderTasks.length; i++) {
intentState.renderTasks[i].operatorListChanged();
}
if (operatorListChunk.lastChunk) {
this._tryCleanup();
}
}
_pumpOperatorList(args) {
(0, _util.assert)(args.intent, 'PDFPageProxy._pumpOperatorList: Expected "intent" argument.');
const readableStream = this._transport.messageHandler.sendWithStream("GetOperatorList", args);
const reader = readableStream.getReader();
const intentState = this.intentStates[args.intent];
intentState.streamReader = reader;
const pump = () => {
reader.read().then(({
value,
done
}) => {
if (done) {
intentState.streamReader = null;
return;
}
if (this._transport.destroyed) {
return;
}
this._renderPageChunk(value, intentState);
pump();
}, reason => {
intentState.streamReader = null;
if (this._transport.destroyed) {
return;
}
if (intentState.operatorList) {
intentState.operatorList.lastChunk = true;
for (let i = 0; i < intentState.renderTasks.length; i++) {
intentState.renderTasks[i].operatorListChanged();
}
this._tryCleanup();
}
if (intentState.displayReadyCapability) {
intentState.displayReadyCapability.reject(reason);
} else if (intentState.opListReadCapability) {
intentState.opListReadCapability.reject(reason);
} else {
throw reason;
}
});
};
pump();
}
_abortOperatorList({
intentState,
reason,
force = false
}) {
(0, _util.assert)(reason instanceof Error || typeof reason === "object" && reason !== null, 'PDFPageProxy._abortOperatorList: Expected "reason" argument.');
if (!intentState.streamReader) {
return;
}
if (!force) {
if (intentState.renderTasks.length !== 0) {
return;
}
if (reason instanceof _display_utils.RenderingCancelledException) {
intentState.streamReaderCancelTimeout = setTimeout(() => {
this._abortOperatorList({
intentState,
reason,
force: true
});
intentState.streamReaderCancelTimeout = null;
}, RENDERING_CANCELLED_TIMEOUT);
return;
}
}
intentState.streamReader.cancel(new _util.AbortException(reason && reason.message));
intentState.streamReader = null;
if (this._transport.destroyed) {
return;
}
Object.keys(this.intentStates).some(intent => {
if (this.intentStates[intent] === intentState) {
delete this.intentStates[intent];
return true;
}
return false;
});
this.cleanup();
}
get stats() {
return this._stats;
}
}
exports.PDFPageProxy = PDFPageProxy;
class LoopbackPort {
constructor(defer = true) {
this._listeners = [];
this._defer = defer;
this._deferred = Promise.resolve(undefined);
}
postMessage(obj, transfers) {
function cloneValue(value) {
if (typeof value !== "object" || value === null) {
return value;
}
if (cloned.has(value)) {
return cloned.get(value);
}
let buffer, result;
if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
const transferable = transfers && transfers.includes(buffer);
if (transferable) {
result = new value.constructor(buffer, value.byteOffset, value.byteLength);
} else {
result = new value.constructor(value);
}
cloned.set(value, result);
return result;
}
result = Array.isArray(value) ? [] : {};
cloned.set(value, result);
for (const i in value) {
let desc,
p = value;
while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
p = Object.getPrototypeOf(p);
}
if (typeof desc.value === "undefined") {
continue;
}
if (typeof desc.value === "function") {
if (value.hasOwnProperty && value.hasOwnProperty(i)) {
throw new Error(`LoopbackPort.postMessage - cannot clone: ${value[i]}`);
}
continue;
}
result[i] = cloneValue(desc.value);
}
return result;
}
if (!this._defer) {
this._listeners.forEach(listener => {
listener.call(this, {
data: obj
});
});
return;
}
const cloned = new WeakMap();
const e = {
data: cloneValue(obj)
};
this._deferred.then(() => {
this._listeners.forEach(listener => {
listener.call(this, e);
});
});
}
addEventListener(name, listener) {
this._listeners.push(listener);
}
removeEventListener(name, listener) {
const i = this._listeners.indexOf(listener);
this._listeners.splice(i, 1);
}
terminate() {
this._listeners.length = 0;
}
}
exports.LoopbackPort = LoopbackPort;
const PDFWorker = function PDFWorkerClosure() {
const pdfWorkerPorts = new WeakMap();
let isWorkerDisabled = false;
let fallbackWorkerSrc;
let nextFakeWorkerId = 0;
let fakeWorkerCapability;
if (_is_node.isNodeJS && typeof require === "function") {
isWorkerDisabled = true;
fallbackWorkerSrc = "./pdf.worker.js";
} else if (typeof document === "object" && "currentScript" in document) {
const pdfjsFilePath = document.currentScript && document.currentScript.src;
if (pdfjsFilePath) {
fallbackWorkerSrc = pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, ".worker$1$2");
}
}
function getWorkerSrc() {
if (_worker_options.GlobalWorkerOptions.workerSrc) {
return _worker_options.GlobalWorkerOptions.workerSrc;
}
if (typeof fallbackWorkerSrc !== "undefined") {
if (!_is_node.isNodeJS) {
(0, _display_utils.deprecated)('No "GlobalWorkerOptions.workerSrc" specified.');
}
return fallbackWorkerSrc;
}
throw new Error('No "GlobalWorkerOptions.workerSrc" specified.');
}
function getMainThreadWorkerMessageHandler() {
let mainWorkerMessageHandler;
try {
mainWorkerMessageHandler = globalThis.pdfjsWorker && globalThis.pdfjsWorker.WorkerMessageHandler;
} catch (ex) {}
return mainWorkerMessageHandler || null;
}
function setupFakeWorkerGlobal() {
if (fakeWorkerCapability) {
return fakeWorkerCapability.promise;
}
fakeWorkerCapability = (0, _util.createPromiseCapability)();
const loader = async function () {
const mainWorkerMessageHandler = getMainThreadWorkerMessageHandler();
if (mainWorkerMessageHandler) {
return mainWorkerMessageHandler;
}
if (_is_node.isNodeJS && typeof require === "function") {
const worker = eval("require")(getWorkerSrc());
return worker.WorkerMessageHandler;
}
await (0, _display_utils.loadScript)(getWorkerSrc());
return window.pdfjsWorker.WorkerMessageHandler;
};
loader().then(fakeWorkerCapability.resolve, fakeWorkerCapability.reject);
return fakeWorkerCapability.promise;
}
function createCDNWrapper(url) {
const wrapper = "importScripts('" + url + "');";
return URL.createObjectURL(new Blob([wrapper]));
}
class PDFWorker {
constructor({
name = null,
port = null,
verbosity = (0, _util.getVerbosityLevel)()
} = {}) {
if (port && pdfWorkerPorts.has(port)) {
throw new Error("Cannot use more than one PDFWorker per port");
}
this.name = name;
this.destroyed = false;
this.postMessageTransfers = true;
this.verbosity = verbosity;
this._readyCapability = (0, _util.createPromiseCapability)();
this._port = null;
this._webWorker = null;
this._messageHandler = null;
if (port) {
pdfWorkerPorts.set(port, this);
this._initializeFromPort(port);
return;
}
this._initialize();
}
get promise() {
return this._readyCapability.promise;
}
get port() {
return this._port;
}
get messageHandler() {
return this._messageHandler;
}
_initializeFromPort(port) {
this._port = port;
this._messageHandler = new _message_handler.MessageHandler("main", "worker", port);
this._messageHandler.on("ready", function () {});
this._readyCapability.resolve();
}
_initialize() {
if (typeof Worker !== "undefined" && !isWorkerDisabled && !getMainThreadWorkerMessageHandler()) {
let workerSrc = getWorkerSrc();
try {
if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
workerSrc = createCDNWrapper(new URL(workerSrc, window.location).href);
}
const worker = new Worker(workerSrc);
const messageHandler = new _message_handler.MessageHandler("main", "worker", worker);
const terminateEarly = () => {
worker.removeEventListener("error", onWorkerError);
messageHandler.destroy();
worker.terminate();
if (this.destroyed) {
this._readyCapability.reject(new Error("Worker was destroyed"));
} else {
this._setupFakeWorker();
}
};
const onWorkerError = () => {
if (!this._webWorker) {
terminateEarly();
}
};
worker.addEventListener("error", onWorkerError);
messageHandler.on("test", data => {
worker.removeEventListener("error", onWorkerError);
if (this.destroyed) {
terminateEarly();
return;
}
if (data) {
this._messageHandler = messageHandler;
this._port = worker;
this._webWorker = worker;
if (!data.supportTransfers) {
this.postMessageTransfers = false;
}
this._readyCapability.resolve();
messageHandler.send("configure", {
verbosity: this.verbosity
});
} else {
this._setupFakeWorker();
messageHandler.destroy();
worker.terminate();
}
});
messageHandler.on("ready", data => {
worker.removeEventListener("error", onWorkerError);
if (this.destroyed) {
terminateEarly();
return;
}
try {
sendTest();
} catch (e) {
this._setupFakeWorker();
}
});
const sendTest = () => {
const testObj = new Uint8Array([this.postMessageTransfers ? 255 : 0]);
try {
messageHandler.send("test", testObj, [testObj.buffer]);
} catch (ex) {
(0, _util.warn)("Cannot use postMessage transfers.");
testObj[0] = 0;
messageHandler.send("test", testObj);
}
};
sendTest();
return;
} catch (e) {
(0, _util.info)("The worker has been disabled.");
}
}
this._setupFakeWorker();
}
_setupFakeWorker() {
if (!isWorkerDisabled) {
(0, _util.warn)("Setting up fake worker.");
isWorkerDisabled = true;
}
setupFakeWorkerGlobal().then(WorkerMessageHandler => {
if (this.destroyed) {
this._readyCapability.reject(new Error("Worker was destroyed"));
return;
}
const port = new LoopbackPort();
this._port = port;
const id = "fake" + nextFakeWorkerId++;
const workerHandler = new _message_handler.MessageHandler(id + "_worker", id, port);
WorkerMessageHandler.setup(workerHandler, port);
const messageHandler = new _message_handler.MessageHandler(id, id + "_worker", port);
this._messageHandler = messageHandler;
this._readyCapability.resolve();
messageHandler.send("configure", {
verbosity: this.verbosity
});
}).catch(reason => {
this._readyCapability.reject(new Error(`Setting up fake worker failed: "${reason.message}".`));
});
}
destroy() {
this.destroyed = true;
if (this._webWorker) {
this._webWorker.terminate();
this._webWorker = null;
}
pdfWorkerPorts.delete(this._port);
this._port = null;
if (this._messageHandler) {
this._messageHandler.destroy();
this._messageHandler = null;
}
}
static fromPort(params) {
if (!params || !params.port) {
throw new Error("PDFWorker.fromPort - invalid method signature.");
}
if (pdfWorkerPorts.has(params.port)) {
return pdfWorkerPorts.get(params.port);
}
return new PDFWorker(params);
}
static getWorkerSrc() {
return getWorkerSrc();
}
}
return PDFWorker;
}();
exports.PDFWorker = PDFWorker;
class WorkerTransport {
constructor(messageHandler, loadingTask, networkStream, params) {
this.messageHandler = messageHandler;
this.loadingTask = loadingTask;
this.commonObjs = new PDFObjects();
this.fontLoader = new _font_loader.FontLoader({
docId: loadingTask.docId,
onUnsupportedFeature: this._onUnsupportedFeature.bind(this)
});
this._params = params;
this.CMapReaderFactory = new params.CMapReaderFactory({
baseUrl: params.cMapUrl,
isCompressed: params.cMapPacked
});
this.destroyed = false;
this.destroyCapability = null;
this._passwordCapability = null;
this._networkStream = networkStream;
this._fullReader = null;
this._lastProgress = null;
this.pageCache = [];
this.pagePromises = [];
this.downloadInfoCapability = (0, _util.createPromiseCapability)();
this.setupMessageHandler();
}
destroy() {
if (this.destroyCapability) {
return this.destroyCapability.promise;
}
this.destroyed = true;
this.destroyCapability = (0, _util.createPromiseCapability)();
if (this._passwordCapability) {
this._passwordCapability.reject(new Error("Worker was destroyed during onPassword callback"));
}
const waitOn = [];
this.pageCache.forEach(function (page) {
if (page) {
waitOn.push(page._destroy());
}
});
this.pageCache.length = 0;
this.pagePromises.length = 0;
const terminated = this.messageHandler.sendWithPromise("Terminate", null);
waitOn.push(terminated);
Promise.all(waitOn).then(() => {
this.fontLoader.clear();
if (this._networkStream) {
this._networkStream.cancelAllRequests(new _util.AbortException("Worker was terminated."));
}
if (this.messageHandler) {
this.messageHandler.destroy();
this.messageHandler = null;
}
this.destroyCapability.resolve();
}, this.destroyCapability.reject);
return this.destroyCapability.promise;
}
setupMessageHandler() {
const {
messageHandler,
loadingTask
} = this;
messageHandler.on("GetReader", (data, sink) => {
(0, _util.assert)(this._networkStream);
this._fullReader = this._networkStream.getFullReader();
this._fullReader.onProgress = evt => {
this._lastProgress = {
loaded: evt.loaded,
total: evt.total
};
};
sink.onPull = () => {
this._fullReader.read().then(function ({
value,
done
}) {
if (done) {
sink.close();
return;
}
(0, _util.assert)((0, _util.isArrayBuffer)(value));
sink.enqueue(new Uint8Array(value), 1, [value]);
}).catch(reason => {
sink.error(reason);
});
};
sink.onCancel = reason => {
this._fullReader.cancel(reason);
};
});
messageHandler.on("ReaderHeadersReady", data => {
const headersCapability = (0, _util.createPromiseCapability)();
const fullReader = this._fullReader;
fullReader.headersReady.then(() => {
if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
if (this._lastProgress && loadingTask.onProgress) {
loadingTask.onProgress(this._lastProgress);
}
fullReader.onProgress = evt => {
if (loadingTask.onProgress) {
loadingTask.onProgress({
loaded: evt.loaded,
total: evt.total
});
}
};
}
headersCapability.resolve({
isStreamingSupported: fullReader.isStreamingSupported,
isRangeSupported: fullReader.isRangeSupported,
contentLength: fullReader.contentLength
});
}, headersCapability.reject);
return headersCapability.promise;
});
messageHandler.on("GetRangeReader", (data, sink) => {
(0, _util.assert)(this._networkStream);
const rangeReader = this._networkStream.getRangeReader(data.begin, data.end);
if (!rangeReader) {
sink.close();
return;
}
sink.onPull = () => {
rangeReader.read().then(function ({
value,
done
}) {
if (done) {
sink.close();
return;
}
(0, _util.assert)((0, _util.isArrayBuffer)(value));
sink.enqueue(new Uint8Array(value), 1, [value]);
}).catch(reason => {
sink.error(reason);
});
};
sink.onCancel = reason => {
rangeReader.cancel(reason);
};
});
messageHandler.on("GetDoc", ({
pdfInfo
}) => {
this._numPages = pdfInfo.numPages;
loadingTask._capability.resolve(new PDFDocumentProxy(pdfInfo, this));
});
messageHandler.on("DocException", function (ex) {
let reason;
switch (ex.name) {
case "PasswordException":
reason = new _util.PasswordException(ex.message, ex.code);
break;
case "InvalidPDFException":
reason = new _util.InvalidPDFException(ex.message);
break;
case "MissingPDFException":
reason = new _util.MissingPDFException(ex.message);
break;
case "UnexpectedResponseException":
reason = new _util.UnexpectedResponseException(ex.message, ex.status);
break;
case "UnknownErrorException":
reason = new _util.UnknownErrorException(ex.message, ex.details);
break;
}
loadingTask._capability.reject(reason);
});
messageHandler.on("PasswordRequest", exception => {
this._passwordCapability = (0, _util.createPromiseCapability)();
if (loadingTask.onPassword) {
const updatePassword = password => {
this._passwordCapability.resolve({
password
});
};
try {
loadingTask.onPassword(updatePassword, exception.code);
} catch (ex) {
this._passwordCapability.reject(ex);
}
} else {
this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
}
return this._passwordCapability.promise;
});
messageHandler.on("DataLoaded", data => {
if (loadingTask.onProgress) {
loadingTask.onProgress({
loaded: data.length,
total: data.length
});
}
this.downloadInfoCapability.resolve(data);
});
messageHandler.on("StartRenderPage", data => {
if (this.destroyed) {
return;
}
const page = this.pageCache[data.pageIndex];
page._startRenderPage(data.transparency, data.intent);
});
messageHandler.on("commonobj", data => {
if (this.destroyed) {
return;
}
const [id, type, exportedData] = data;
if (this.commonObjs.has(id)) {
return;
}
switch (type) {
case "Font":
const params = this._params;
if ("error" in exportedData) {
const exportedError = exportedData.error;
(0, _util.warn)(`Error during font loading: ${exportedError}`);
this.commonObjs.resolve(id, exportedError);
break;
}
let fontRegistry = null;
if (params.pdfBug && globalThis.FontInspector && globalThis.FontInspector.enabled) {
fontRegistry = {
registerFont(font, url) {
globalThis.FontInspector.fontAdded(font, url);
}
};
}
const font = new _font_loader.FontFaceObject(exportedData, {
isEvalSupported: params.isEvalSupported,
disableFontFace: params.disableFontFace,
ignoreErrors: params.ignoreErrors,
onUnsupportedFeature: this._onUnsupportedFeature.bind(this),
fontRegistry
});
this.fontLoader.bind(font).then(() => {
this.commonObjs.resolve(id, font);
}, reason => {
messageHandler.sendWithPromise("FontFallback", {
id
}).finally(() => {
this.commonObjs.resolve(id, font);
});
});
break;
case "FontPath":
case "FontType3Res":
this.commonObjs.resolve(id, exportedData);
break;
default:
throw new Error(`Got unknown common object type ${type}`);
}
});
messageHandler.on("obj", data => {
if (this.destroyed) {
return undefined;
}
const [id, pageIndex, type, imageData] = data;
const pageProxy = this.pageCache[pageIndex];
if (pageProxy.objs.has(id)) {
return undefined;
}
switch (type) {
case "JpegStream":
return new Promise((resolve, reject) => {
const img = new Image();
img.onload = function () {
resolve(img);
};
img.onerror = function () {
reject(new Error("Error during JPEG image loading"));
(0, _display_utils.releaseImageResources)(img);
};
img.src = imageData;
}).then(img => {
pageProxy.objs.resolve(id, img);
});
case "Image":
pageProxy.objs.resolve(id, imageData);
const MAX_IMAGE_SIZE_TO_STORE = 8000000;
if (imageData && "data" in imageData && imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
pageProxy.cleanupAfterRender = true;
}
break;
default:
throw new Error(`Got unknown object type ${type}`);
}
return undefined;
});
messageHandler.on("DocProgress", data => {
if (this.destroyed) {
return;
}
if (loadingTask.onProgress) {
loadingTask.onProgress({
loaded: data.loaded,
total: data.total
});
}
});
messageHandler.on("UnsupportedFeature", this._onUnsupportedFeature.bind(this));
messageHandler.on("JpegDecode", data => {
if (this.destroyed) {
return Promise.reject(new Error("Worker was destroyed"));
}
if (typeof document === "undefined") {
return Promise.reject(new Error('"document" is not defined.'));
}
const [imageUrl, components] = data;
if (components !== 3 && components !== 1) {
return Promise.reject(new Error("Only 3 components or 1 component can be returned"));
}
return new Promise(function (resolve, reject) {
const img = new Image();
img.onload = function () {
const {
width,
height
} = img;
const size = width * height;
const rgbaLength = size * 4;
const buf = new Uint8ClampedArray(size * components);
let tmpCanvas = document.createElement("canvas");
tmpCanvas.width = width;
tmpCanvas.height = height;
let tmpCtx = tmpCanvas.getContext("2d");
tmpCtx.drawImage(img, 0, 0);
const data = tmpCtx.getImageData(0, 0, width, height).data;
if (components === 3) {
for (let i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
buf[j] = data[i];
buf[j + 1] = data[i + 1];
buf[j + 2] = data[i + 2];
}
} else if (components === 1) {
for (let i = 0, j = 0; i < rgbaLength; i += 4, j++) {
buf[j] = data[i];
}
}
resolve({
data: buf,
width,
height
});
(0, _display_utils.releaseImageResources)(img);
tmpCanvas.width = 0;
tmpCanvas.height = 0;
tmpCanvas = null;
tmpCtx = null;
};
img.onerror = function () {
reject(new Error("JpegDecode failed to load image"));
(0, _display_utils.releaseImageResources)(img);
};
img.src = imageUrl;
});
});
messageHandler.on("FetchBuiltInCMap", (data, sink) => {
if (this.destroyed) {
sink.error(new Error("Worker was destroyed"));
return;
}
let fetched = false;
sink.onPull = () => {
if (fetched) {
sink.close();
return;
}
fetched = true;
this.CMapReaderFactory.fetch(data).then(function (builtInCMap) {
sink.enqueue(builtInCMap, 1, [builtInCMap.cMapData.buffer]);
}).catch(function (reason) {
sink.error(reason);
});
};
});
}
_onUnsupportedFeature({
featureId
}) {
if (this.destroyed) {
return;
}
if (this.loadingTask.onUnsupportedFeature) {
this.loadingTask.onUnsupportedFeature(featureId);
}
}
getData() {
return this.messageHandler.sendWithPromise("GetData", null);
}
getPage(pageNumber) {
if (!Number.isInteger(pageNumber) || pageNumber <= 0 || pageNumber > this._numPages) {
return Promise.reject(new Error("Invalid page request"));
}
const pageIndex = pageNumber - 1;
if (pageIndex in this.pagePromises) {
return this.pagePromises[pageIndex];
}
const promise = this.messageHandler.sendWithPromise("GetPage", {
pageIndex
}).then(pageInfo => {
if (this.destroyed) {
throw new Error("Transport destroyed");
}
const page = new PDFPageProxy(pageIndex, pageInfo, this, this._params.pdfBug);
this.pageCache[pageIndex] = page;
return page;
});
this.pagePromises[pageIndex] = promise;
return promise;
}
getPageIndex(ref) {
return this.messageHandler.sendWithPromise("GetPageIndex", {
ref
}).catch(function (reason) {
return Promise.reject(new Error(reason));
});
}
getAnnotations(pageIndex, intent) {
return this.messageHandler.sendWithPromise("GetAnnotations", {
pageIndex,
intent
});
}
getDestinations() {
return this.messageHandler.sendWithPromise("GetDestinations", null);
}
getDestination(id) {
if (typeof id !== "string") {
return Promise.reject(new Error("Invalid destination request."));
}
return this.messageHandler.sendWithPromise("GetDestination", {
id
});
}
getPageLabels() {
return this.messageHandler.sendWithPromise("GetPageLabels", null);
}
getPageLayout() {
return this.messageHandler.sendWithPromise("GetPageLayout", null);
}
getPageMode() {
return this.messageHandler.sendWithPromise("GetPageMode", null);
}
getViewerPreferences() {
return this.messageHandler.sendWithPromise("GetViewerPreferences", null);
}
getOpenAction() {
return this.messageHandler.sendWithPromise("GetOpenAction", null);
}
getAttachments() {
return this.messageHandler.sendWithPromise("GetAttachments", null);
}
getJavaScript() {
return this.messageHandler.sendWithPromise("GetJavaScript", null);
}
getOutline() {
return this.messageHandler.sendWithPromise("GetOutline", null);
}
getPermissions() {
return this.messageHandler.sendWithPromise("GetPermissions", null);
}
getMetadata() {
return this.messageHandler.sendWithPromise("GetMetadata", null).then(results => {
return {
info: results[0],
metadata: results[1] ? new _metadata.Metadata(results[1]) : null,
contentDispositionFilename: this._fullReader ? this._fullReader.filename : null
};
});
}
getStats() {
return this.messageHandler.sendWithPromise("GetStats", null);
}
startCleanup() {
return this.messageHandler.sendWithPromise("Cleanup", null).then(() => {
for (let i = 0, ii = this.pageCache.length; i < ii; i++) {
const page = this.pageCache[i];
if (page) {
const cleanupSuccessful = page.cleanup();
if (!cleanupSuccessful) {
throw new Error(`startCleanup: Page ${i + 1} is currently rendering.`);
}
}
}
this.commonObjs.clear();
this.fontLoader.clear();
});
}
get loadingParams() {
const params = this._params;
return (0, _util.shadow)(this, "loadingParams", {
disableAutoFetch: params.disableAutoFetch,
disableCreateObjectURL: params.disableCreateObjectURL,
disableFontFace: params.disableFontFace,
nativeImageDecoderSupport: params.nativeImageDecoderSupport
});
}
}
class PDFObjects {
constructor() {
this._objs = Object.create(null);
}
_ensureObj(objId) {
if (this._objs[objId]) {
return this._objs[objId];
}
return this._objs[objId] = {
capability: (0, _util.createPromiseCapability)(),
data: null,
resolved: false
};
}
get(objId, callback = null) {
if (callback) {
this._ensureObj(objId).capability.promise.then(callback);
return null;
}
const obj = this._objs[objId];
if (!obj || !obj.resolved) {
throw new Error(`Requesting object that isn't resolved yet ${objId}.`);
}
return obj.data;
}
has(objId) {
const obj = this._objs[objId];
return obj ? obj.resolved : false;
}
resolve(objId, data) {
const obj = this._ensureObj(objId);
obj.resolved = true;
obj.data = data;
obj.capability.resolve(data);
}
clear() {
for (const objId in this._objs) {
const {
data
} = this._objs[objId];
if (typeof Image !== "undefined" && data instanceof Image) {
(0, _display_utils.releaseImageResources)(data);
}
}
this._objs = Object.create(null);
}
}
class RenderTask {
constructor(internalRenderTask) {
this._internalRenderTask = internalRenderTask;
this.onContinue = null;
}
get promise() {
return this._internalRenderTask.capability.promise;
}
cancel() {
this._internalRenderTask.cancel();
}
then(onFulfilled, onRejected) {
throw new Error("Removed API method: " + "RenderTask.then, use the `promise` getter instead.");
}
}
const InternalRenderTask = function InternalRenderTaskClosure() {
const canvasInRendering = new WeakSet();
class InternalRenderTask {
constructor({
callback,
params,
objs,
commonObjs,
operatorList,
pageIndex,
canvasFactory,
webGLContext,
useRequestAnimationFrame = false,
pdfBug = false
}) {
this.callback = callback;
this.params = params;
this.objs = objs;
this.commonObjs = commonObjs;
this.operatorListIdx = null;
this.operatorList = operatorList;
this._pageIndex = pageIndex;
this.canvasFactory = canvasFactory;
this.webGLContext = webGLContext;
this._pdfBug = pdfBug;
this.running = false;
this.graphicsReadyCallback = null;
this.graphicsReady = false;
this._useRequestAnimationFrame = useRequestAnimationFrame === true && typeof window !== "undefined";
this.cancelled = false;
this.capability = (0, _util.createPromiseCapability)();
this.task = new RenderTask(this);
this._continueBound = this._continue.bind(this);
this._scheduleNextBound = this._scheduleNext.bind(this);
this._nextBound = this._next.bind(this);
this._canvas = params.canvasContext.canvas;
}
initializeGraphics(transparency = false) {
if (this.cancelled) {
return;
}
if (this._canvas) {
if (canvasInRendering.has(this._canvas)) {
throw new Error("Cannot use the same canvas during multiple render() operations. " + "Use different canvas or ensure previous operations were " + "cancelled or completed.");
}
canvasInRendering.add(this._canvas);
}
if (this._pdfBug && globalThis.StepperManager && globalThis.StepperManager.enabled) {
this.stepper = globalThis.StepperManager.create(this._pageIndex);
this.stepper.init(this.operatorList);
this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
}
const {
canvasContext,
viewport,
transform,
imageLayer,
background
} = this.params;
this.gfx = new _canvas.CanvasGraphics(canvasContext, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext, imageLayer);
this.gfx.beginDrawing({
transform,
viewport,
transparency,
background
});
this.operatorListIdx = 0;
this.graphicsReady = true;
if (this.graphicsReadyCallback) {
this.graphicsReadyCallback();
}
}
cancel(error = null) {
this.running = false;
this.cancelled = true;
if (this.gfx) {
this.gfx.endDrawing();
}
if (this._canvas) {
canvasInRendering.delete(this._canvas);
}
this.callback(error || new _display_utils.RenderingCancelledException(`Rendering cancelled, page ${this._pageIndex + 1}`, "canvas"));
}
operatorListChanged() {
if (!this.graphicsReady) {
if (!this.graphicsReadyCallback) {
this.graphicsReadyCallback = this._continueBound;
}
return;
}
if (this.stepper) {
this.stepper.updateOperatorList(this.operatorList);
}
if (this.running) {
return;
}
this._continue();
}
_continue() {
this.running = true;
if (this.cancelled) {
return;
}
if (this.task.onContinue) {
this.task.onContinue(this._scheduleNextBound);
} else {
this._scheduleNext();
}
}
_scheduleNext() {
if (this._useRequestAnimationFrame) {
window.requestAnimationFrame(() => {
this._nextBound().catch(this.cancel.bind(this));
});
} else {
Promise.resolve().then(this._nextBound).catch(this.cancel.bind(this));
}
}
async _next() {
if (this.cancelled) {
return;
}
this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList, this.operatorListIdx, this._continueBound, this.stepper);
if (this.operatorListIdx === this.operatorList.argsArray.length) {
this.running = false;
if (this.operatorList.lastChunk) {
this.gfx.endDrawing();
if (this._canvas) {
canvasInRendering.delete(this._canvas);
}
this.callback();
}
}
}
}
return InternalRenderTask;
}();
const version = '2.4.456';
exports.version = version;
const build = '228a591c';
exports.build = build;
/***/ }),
/* 4 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.addLinkAttributes = addLinkAttributes;
exports.getFilenameFromUrl = getFilenameFromUrl;
exports.isFetchSupported = isFetchSupported;
exports.isValidFetchUrl = isValidFetchUrl;
exports.loadScript = loadScript;
exports.deprecated = deprecated;
exports.releaseImageResources = releaseImageResources;
exports.PDFDateString = exports.StatTimer = exports.DOMSVGFactory = exports.DOMCMapReaderFactory = exports.DOMCanvasFactory = exports.DEFAULT_LINK_REL = exports.LinkTarget = exports.RenderingCancelledException = exports.PageViewport = void 0;
var _util = __w_pdfjs_require__(1);
const DEFAULT_LINK_REL = "noopener noreferrer nofollow";
exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;
const SVG_NS = "http://www.w3.org/2000/svg";
class DOMCanvasFactory {
create(width, height) {
if (width <= 0 || height <= 0) {
throw new Error("Invalid canvas size");
}
const canvas = document.createElement("canvas");
const context = canvas.getContext("2d");
canvas.width = width;
canvas.height = height;
return {
canvas,
context
};
}
reset(canvasAndContext, width, height) {
if (!canvasAndContext.canvas) {
throw new Error("Canvas is not specified");
}
if (width <= 0 || height <= 0) {
throw new Error("Invalid canvas size");
}
canvasAndContext.canvas.width = width;
canvasAndContext.canvas.height = height;
}
destroy(canvasAndContext) {
if (!canvasAndContext.canvas) {
throw new Error("Canvas is not specified");
}
canvasAndContext.canvas.width = 0;
canvasAndContext.canvas.height = 0;
canvasAndContext.canvas = null;
canvasAndContext.context = null;
}
}
exports.DOMCanvasFactory = DOMCanvasFactory;
class DOMCMapReaderFactory {
constructor({
baseUrl = null,
isCompressed = false
}) {
this.baseUrl = baseUrl;
this.isCompressed = isCompressed;
}
async fetch({
name
}) {
if (!this.baseUrl) {
throw new Error('The CMap "baseUrl" parameter must be specified, ensure that ' + 'the "cMapUrl" and "cMapPacked" API parameters are provided.');
}
if (!name) {
throw new Error("CMap name must be specified.");
}
const url = this.baseUrl + name + (this.isCompressed ? ".bcmap" : "");
const compressionType = this.isCompressed ? _util.CMapCompressionType.BINARY : _util.CMapCompressionType.NONE;
if (isFetchSupported() && isValidFetchUrl(url, document.baseURI)) {
return fetch(url).then(async response => {
if (!response.ok) {
throw new Error(response.statusText);
}
let cMapData;
if (this.isCompressed) {
cMapData = new Uint8Array((await response.arrayBuffer()));
} else {
cMapData = (0, _util.stringToBytes)((await response.text()));
}
return {
cMapData,
compressionType
};
}).catch(reason => {
throw new Error(`Unable to load ${this.isCompressed ? "binary " : ""}` + `CMap at: ${url}`);
});
}
return new Promise((resolve, reject) => {
const request = new XMLHttpRequest();
request.open("GET", url, true);
if (this.isCompressed) {
request.responseType = "arraybuffer";
}
request.onreadystatechange = () => {
if (request.readyState !== XMLHttpRequest.DONE) {
return;
}
if (request.status === 200 || request.status === 0) {
let cMapData;
if (this.isCompressed && request.response) {
cMapData = new Uint8Array(request.response);
} else if (!this.isCompressed && request.responseText) {
cMapData = (0, _util.stringToBytes)(request.responseText);
}
if (cMapData) {
resolve({
cMapData,
compressionType
});
return;
}
}
reject(new Error(request.statusText));
};
request.send(null);
}).catch(reason => {
throw new Error(`Unable to load ${this.isCompressed ? "binary " : ""}` + `CMap at: ${url}`);
});
}
}
exports.DOMCMapReaderFactory = DOMCMapReaderFactory;
class DOMSVGFactory {
create(width, height) {
(0, _util.assert)(width > 0 && height > 0, "Invalid SVG dimensions");
const svg = document.createElementNS(SVG_NS, "svg:svg");
svg.setAttribute("version", "1.1");
svg.setAttribute("width", width + "px");
svg.setAttribute("height", height + "px");
svg.setAttribute("preserveAspectRatio", "none");
svg.setAttribute("viewBox", "0 0 " + width + " " + height);
return svg;
}
createElement(type) {
(0, _util.assert)(typeof type === "string", "Invalid SVG element type");
return document.createElementNS(SVG_NS, type);
}
}
exports.DOMSVGFactory = DOMSVGFactory;
class PageViewport {
constructor({
viewBox,
scale,
rotation,
offsetX = 0,
offsetY = 0,
dontFlip = false
}) {
this.viewBox = viewBox;
this.scale = scale;
this.rotation = rotation;
this.offsetX = offsetX;
this.offsetY = offsetY;
const centerX = (viewBox[2] + viewBox[0]) / 2;
const centerY = (viewBox[3] + viewBox[1]) / 2;
let 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;
default:
rotateA = 1;
rotateB = 0;
rotateC = 0;
rotateD = -1;
break;
}
if (dontFlip) {
rotateC = -rotateC;
rotateD = -rotateD;
}
let offsetCanvasX, offsetCanvasY;
let 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;
}
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;
}
clone({
scale = this.scale,
rotation = this.rotation,
offsetX = this.offsetX,
offsetY = this.offsetY,
dontFlip = false
} = {}) {
return new PageViewport({
viewBox: this.viewBox.slice(),
scale,
rotation,
offsetX,
offsetY,
dontFlip
});
}
convertToViewportPoint(x, y) {
return _util.Util.applyTransform([x, y], this.transform);
}
convertToViewportRectangle(rect) {
const topLeft = _util.Util.applyTransform([rect[0], rect[1]], this.transform);
const bottomRight = _util.Util.applyTransform([rect[2], rect[3]], this.transform);
return [topLeft[0], topLeft[1], bottomRight[0], bottomRight[1]];
}
convertToPdfPoint(x, y) {
return _util.Util.applyInverseTransform([x, y], this.transform);
}
}
exports.PageViewport = PageViewport;
class RenderingCancelledException extends _util.BaseException {
constructor(msg, type) {
super(msg);
this.type = type;
}
}
exports.RenderingCancelledException = RenderingCancelledException;
const LinkTarget = {
NONE: 0,
SELF: 1,
BLANK: 2,
PARENT: 3,
TOP: 4
};
exports.LinkTarget = LinkTarget;
function addLinkAttributes(link, {
url,
target,
rel,
enabled = true
} = {}) {
(0, _util.assert)(url && typeof url === "string", 'addLinkAttributes: A valid "url" parameter must provided.');
const urlNullRemoved = (0, _util.removeNullCharacters)(url);
if (enabled) {
link.href = link.title = urlNullRemoved;
} else {
link.href = "";
link.title = `Disabled: ${urlNullRemoved}`;
link.onclick = () => {
return false;
};
}
let targetStr = "";
switch (target) {
case LinkTarget.NONE:
break;
case LinkTarget.SELF:
targetStr = "_self";
break;
case LinkTarget.BLANK:
targetStr = "_blank";
break;
case LinkTarget.PARENT:
targetStr = "_parent";
break;
case LinkTarget.TOP:
targetStr = "_top";
break;
}
link.target = targetStr;
link.rel = typeof rel === "string" ? rel : DEFAULT_LINK_REL;
}
function getFilenameFromUrl(url) {
const anchor = url.indexOf("#");
const query = url.indexOf("?");
const end = Math.min(anchor > 0 ? anchor : url.length, query > 0 ? query : url.length);
return url.substring(url.lastIndexOf("/", end) + 1, end);
}
class StatTimer {
constructor() {
this.started = Object.create(null);
this.times = [];
}
time(name) {
if (name in this.started) {
(0, _util.warn)(`Timer is already running for ${name}`);
}
this.started[name] = Date.now();
}
timeEnd(name) {
if (!(name in this.started)) {
(0, _util.warn)(`Timer has not been started for ${name}`);
}
this.times.push({
name,
start: this.started[name],
end: Date.now()
});
delete this.started[name];
}
toString() {
const outBuf = [];
let longest = 0;
for (const time of this.times) {
const name = time.name;
if (name.length > longest) {
longest = name.length;
}
}
for (const time of this.times) {
const duration = time.end - time.start;
outBuf.push(`${time.name.padEnd(longest)} ${duration}ms\n`);
}
return outBuf.join("");
}
}
exports.StatTimer = StatTimer;
function isFetchSupported() {
return typeof fetch !== "undefined" && typeof Response !== "undefined" && "body" in Response.prototype && typeof ReadableStream !== "undefined";
}
function isValidFetchUrl(url, baseUrl) {
try {
const {
protocol
} = baseUrl ? new URL(url, baseUrl) : new URL(url);
return protocol === "http:" || protocol === "https:";
} catch (ex) {
return false;
}
}
function loadScript(src) {
return new Promise((resolve, reject) => {
const script = document.createElement("script");
script.src = src;
script.onload = resolve;
script.onerror = function () {
reject(new Error(`Cannot load script at: ${script.src}`));
};
(document.head || document.documentElement).appendChild(script);
});
}
function deprecated(details) {
console.log("Deprecated API usage: " + details);
}
function releaseImageResources(img) {
(0, _util.assert)(img instanceof Image, "Invalid `img` parameter.");
const url = img.src;
if (typeof url === "string" && url.startsWith("blob:") && URL.revokeObjectURL) {
URL.revokeObjectURL(url);
}
img.removeAttribute("src");
}
let pdfDateStringRegex;
class PDFDateString {
static toDateObject(input) {
if (!input || !(0, _util.isString)(input)) {
return null;
}
if (!pdfDateStringRegex) {
pdfDateStringRegex = new RegExp("^D:" + "(\\d{4})" + "(\\d{2})?" + "(\\d{2})?" + "(\\d{2})?" + "(\\d{2})?" + "(\\d{2})?" + "([Z|+|-])?" + "(\\d{2})?" + "'?" + "(\\d{2})?" + "'?");
}
const matches = pdfDateStringRegex.exec(input);
if (!matches) {
return null;
}
const year = parseInt(matches[1], 10);
let month = parseInt(matches[2], 10);
month = month >= 1 && month <= 12 ? month - 1 : 0;
let day = parseInt(matches[3], 10);
day = day >= 1 && day <= 31 ? day : 1;
let hour = parseInt(matches[4], 10);
hour = hour >= 0 && hour <= 23 ? hour : 0;
let minute = parseInt(matches[5], 10);
minute = minute >= 0 && minute <= 59 ? minute : 0;
let second = parseInt(matches[6], 10);
second = second >= 0 && second <= 59 ? second : 0;
const universalTimeRelation = matches[7] || "Z";
let offsetHour = parseInt(matches[8], 10);
offsetHour = offsetHour >= 0 && offsetHour <= 23 ? offsetHour : 0;
let offsetMinute = parseInt(matches[9], 10) || 0;
offsetMinute = offsetMinute >= 0 && offsetMinute <= 59 ? offsetMinute : 0;
if (universalTimeRelation === "-") {
hour += offsetHour;
minute += offsetMinute;
} else if (universalTimeRelation === "+") {
hour -= offsetHour;
minute -= offsetMinute;
}
return new Date(Date.UTC(year, month, day, hour, minute, second));
}
}
exports.PDFDateString = PDFDateString;
/***/ }),
/* 5 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.FontLoader = exports.FontFaceObject = void 0;
var _util = __w_pdfjs_require__(1);
class BaseFontLoader {
constructor({
docId,
onUnsupportedFeature
}) {
if (this.constructor === BaseFontLoader) {
(0, _util.unreachable)("Cannot initialize BaseFontLoader.");
}
this.docId = docId;
this._onUnsupportedFeature = onUnsupportedFeature;
this.nativeFontFaces = [];
this.styleElement = null;
}
addNativeFontFace(nativeFontFace) {
this.nativeFontFaces.push(nativeFontFace);
document.fonts.add(nativeFontFace);
}
insertRule(rule) {
let styleElement = this.styleElement;
if (!styleElement) {
styleElement = this.styleElement = document.createElement("style");
styleElement.id = `PDFJS_FONT_STYLE_TAG_${this.docId}`;
document.documentElement.getElementsByTagName("head")[0].appendChild(styleElement);
}
const styleSheet = styleElement.sheet;
styleSheet.insertRule(rule, styleSheet.cssRules.length);
}
clear() {
this.nativeFontFaces.forEach(function (nativeFontFace) {
document.fonts.delete(nativeFontFace);
});
this.nativeFontFaces.length = 0;
if (this.styleElement) {
this.styleElement.remove();
this.styleElement = null;
}
}
async bind(font) {
if (font.attached || font.missingFile) {
return;
}
font.attached = true;
if (this.isFontLoadingAPISupported) {
const nativeFontFace = font.createNativeFontFace();
if (nativeFontFace) {
this.addNativeFontFace(nativeFontFace);
try {
await nativeFontFace.loaded;
} catch (ex) {
this._onUnsupportedFeature({
featureId: _util.UNSUPPORTED_FEATURES.font
});
(0, _util.warn)(`Failed to load font '${nativeFontFace.family}': '${ex}'.`);
font.disableFontFace = true;
throw ex;
}
}
return;
}
const rule = font.createFontFaceRule();
if (rule) {
this.insertRule(rule);
if (this.isSyncFontLoadingSupported) {
return;
}
await new Promise(resolve => {
const request = this._queueLoadingCallback(resolve);
this._prepareFontLoadEvent([rule], [font], request);
});
}
}
_queueLoadingCallback(callback) {
(0, _util.unreachable)("Abstract method `_queueLoadingCallback`.");
}
get isFontLoadingAPISupported() {
const supported = typeof document !== "undefined" && !!document.fonts;
return (0, _util.shadow)(this, "isFontLoadingAPISupported", supported);
}
get isSyncFontLoadingSupported() {
(0, _util.unreachable)("Abstract method `isSyncFontLoadingSupported`.");
}
get _loadTestFont() {
(0, _util.unreachable)("Abstract method `_loadTestFont`.");
}
_prepareFontLoadEvent(rules, fontsToLoad, request) {
(0, _util.unreachable)("Abstract method `_prepareFontLoadEvent`.");
}
}
let FontLoader;
exports.FontLoader = FontLoader;
{
exports.FontLoader = FontLoader = class GenericFontLoader extends BaseFontLoader {
constructor(docId) {
super(docId);
this.loadingContext = {
requests: [],
nextRequestId: 0
};
this.loadTestFontId = 0;
}
get isSyncFontLoadingSupported() {
let supported = false;
if (typeof navigator === "undefined") {
supported = true;
} else {
const m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);
if (m && m[1] >= 14) {
supported = true;
}
}
return (0, _util.shadow)(this, "isSyncFontLoadingSupported", supported);
}
_queueLoadingCallback(callback) {
function completeRequest() {
(0, _util.assert)(!request.done, "completeRequest() cannot be called twice.");
request.done = true;
while (context.requests.length > 0 && context.requests[0].done) {
const otherRequest = context.requests.shift();
setTimeout(otherRequest.callback, 0);
}
}
const context = this.loadingContext;
const request = {
id: `pdfjs-font-loading-${context.nextRequestId++}`,
done: false,
complete: completeRequest,
callback
};
context.requests.push(request);
return request;
}
get _loadTestFont() {
const getLoadTestFont = function () {
return atob("T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQA" + "FQAABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAA" + "ALwAAAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgA" + "AAAGbmFtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1" + "AAsD6AAAAADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD" + "6AAAAAAD6AABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACM" + "AooCvAAAAeAAMQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4D" + "IP84AFoDIQAAAAAAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAA" + "AAEAAQAAAAEAAAAAAAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUA" + "AQAAAAEAAAAAAAYAAQAAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgAB" + "AAMAAQQJAAMAAgABAAMAAQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABY" + "AAAAAAAAAwAAAAMAAAAcAAEAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAA" + "AC7////TAAEAAAAAAAABBgAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" + "AAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAA" + "AAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgcA/gXBIwMAYuL+nz5tQXkD5j3CBLnEQAC" + "AQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYAAABAQAADwACAQEEE/t3" + "Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQAAAAAAAABAAAAAMmJbzEAAAAAzgTj" + "FQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAgABAAAAAAAAAAAD6AAAAAAAAA==");
};
return (0, _util.shadow)(this, "_loadTestFont", getLoadTestFont());
}
_prepareFontLoadEvent(rules, fonts, request) {
function int32(data, offset) {
return data.charCodeAt(offset) << 24 | data.charCodeAt(offset + 1) << 16 | data.charCodeAt(offset + 2) << 8 | data.charCodeAt(offset + 3) & 0xff;
}
function spliceString(s, offset, remove, insert) {
const chunk1 = s.substring(0, offset);
const chunk2 = s.substring(offset + remove);
return chunk1 + insert + chunk2;
}
let i, ii;
const canvas = document.createElement("canvas");
canvas.width = 1;
canvas.height = 1;
const ctx = canvas.getContext("2d");
let called = 0;
function isFontReady(name, callback) {
called++;
if (called > 30) {
(0, _util.warn)("Load test font never loaded.");
callback();
return;
}
ctx.font = "30px " + name;
ctx.fillText(".", 0, 20);
const imageData = ctx.getImageData(0, 0, 1, 1);
if (imageData.data[3] > 0) {
callback();
return;
}
setTimeout(isFontReady.bind(null, name, callback));
}
const loadTestFontId = `lt${Date.now()}${this.loadTestFontId++}`;
let data = this._loadTestFont;
const COMMENT_OFFSET = 976;
data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length, loadTestFontId);
const CFF_CHECKSUM_OFFSET = 16;
const XXXX_VALUE = 0x58585858;
let checksum = int32(data, CFF_CHECKSUM_OFFSET);
for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
checksum = checksum - XXXX_VALUE + int32(loadTestFontId, i) | 0;
}
if (i < loadTestFontId.length) {
checksum = checksum - XXXX_VALUE + int32(loadTestFontId + "XXX", i) | 0;
}
data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, (0, _util.string32)(checksum));
const url = `url(data:font/opentype;base64,${btoa(data)});`;
const rule = `@font-face {font-family:"${loadTestFontId}";src:${url}}`;
this.insertRule(rule);
const names = [];
for (i = 0, ii = fonts.length; i < ii; i++) {
names.push(fonts[i].loadedName);
}
names.push(loadTestFontId);
const div = document.createElement("div");
div.style.visibility = "hidden";
div.style.width = div.style.height = "10px";
div.style.position = "absolute";
div.style.top = div.style.left = "0px";
for (i = 0, ii = names.length; i < ii; ++i) {
const span = document.createElement("span");
span.textContent = "Hi";
span.style.fontFamily = names[i];
div.appendChild(span);
}
document.body.appendChild(div);
isFontReady(loadTestFontId, function () {
document.body.removeChild(div);
request.complete();
});
}
};
}
class FontFaceObject {
constructor(translatedData, {
isEvalSupported = true,
disableFontFace = false,
ignoreErrors = false,
onUnsupportedFeature = null,
fontRegistry = null
}) {
this.compiledGlyphs = Object.create(null);
for (const i in translatedData) {
this[i] = translatedData[i];
}
this.isEvalSupported = isEvalSupported !== false;
this.disableFontFace = disableFontFace === true;
this.ignoreErrors = ignoreErrors === true;
this._onUnsupportedFeature = onUnsupportedFeature;
this.fontRegistry = fontRegistry;
}
createNativeFontFace() {
if (!this.data || this.disableFontFace) {
return null;
}
const nativeFontFace = new FontFace(this.loadedName, this.data, {});
if (this.fontRegistry) {
this.fontRegistry.registerFont(this);
}
return nativeFontFace;
}
createFontFaceRule() {
if (!this.data || this.disableFontFace) {
return null;
}
const data = (0, _util.bytesToString)(new Uint8Array(this.data));
const url = `url(data:${this.mimetype};base64,${btoa(data)});`;
const rule = `@font-face {font-family:"${this.loadedName}";src:${url}}`;
if (this.fontRegistry) {
this.fontRegistry.registerFont(this, url);
}
return rule;
}
getPathGenerator(objs, character) {
if (this.compiledGlyphs[character] !== undefined) {
return this.compiledGlyphs[character];
}
let cmds, current;
try {
cmds = objs.get(this.loadedName + "_path_" + character);
} catch (ex) {
if (!this.ignoreErrors) {
throw ex;
}
if (this._onUnsupportedFeature) {
this._onUnsupportedFeature({
featureId: _util.UNSUPPORTED_FEATURES.font
});
}
(0, _util.warn)(`getPathGenerator - ignoring character: "${ex}".`);
return this.compiledGlyphs[character] = function (c, size) {};
}
if (this.isEvalSupported && _util.IsEvalSupportedCached.value) {
let args,
js = "";
for (let i = 0, ii = cmds.length; i < ii; i++) {
current = cmds[i];
if (current.args !== undefined) {
args = current.args.join(",");
} else {
args = "";
}
js += "c." + current.cmd + "(" + args + ");\n";
}
return this.compiledGlyphs[character] = new Function("c", "size", js);
}
return this.compiledGlyphs[character] = function (c, size) {
for (let i = 0, ii = cmds.length; i < ii; i++) {
current = cmds[i];
if (current.cmd === "scale") {
current.args = [size, -size];
}
c[current.cmd].apply(c, current.args);
}
};
}
}
exports.FontFaceObject = FontFaceObject;
/***/ }),
/* 6 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
const compatibilityParams = Object.create(null);
{
const {
isNodeJS
} = __w_pdfjs_require__(7);
const userAgent = typeof navigator !== "undefined" && navigator.userAgent || "";
const isIE = /Trident/.test(userAgent);
const isIOSChrome = /CriOS/.test(userAgent);
(function checkOnBlobSupport() {
if (isIE || isIOSChrome) {
compatibilityParams.disableCreateObjectURL = true;
}
})();
(function checkFontFaceAndImage() {
if (isNodeJS) {
compatibilityParams.disableFontFace = true;
compatibilityParams.nativeImageDecoderSupport = "none";
}
})();
}
exports.apiCompatibilityParams = Object.freeze(compatibilityParams);
/***/ }),
/* 7 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.isNodeJS = void 0;
const isNodeJS = typeof process === "object" && process + "" === "[object process]" && !process.versions["nw"] && !process.versions["electron"];
exports.isNodeJS = isNodeJS;
/***/ }),
/* 8 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.CanvasGraphics = void 0;
var _util = __w_pdfjs_require__(1);
var _pattern_helper = __w_pdfjs_require__(9);
var MIN_FONT_SIZE = 16;
var MAX_FONT_SIZE = 100;
var MAX_GROUP_SIZE = 4096;
var MIN_WIDTH_FACTOR = 0.65;
var COMPILE_TYPE3_GLYPHS = true;
var MAX_SIZE_TO_COMPILE = 1000;
var FULL_CHUNK_HEIGHT = 16;
function addContextCurrentTransform(ctx) {
if (!ctx.mozCurrentTransform) {
ctx._originalSave = ctx.save;
ctx._originalRestore = ctx.restore;
ctx._originalRotate = ctx.rotate;
ctx._originalScale = ctx.scale;
ctx._originalTranslate = ctx.translate;
ctx._originalTransform = ctx.transform;
ctx._originalSetTransform = ctx.setTransform;
ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
ctx._transformStack = [];
Object.defineProperty(ctx, "mozCurrentTransform", {
get: function getCurrentTransform() {
return this._transformMatrix;
}
});
Object.defineProperty(ctx, "mozCurrentTransformInverse", {
get: function getCurrentTransformInverse() {
var m = this._transformMatrix;
var a = m[0],
b = m[1],
c = m[2],
d = m[3],
e = m[4],
f = m[5];
var ad_bc = a * d - b * c;
var bc_ad = b * c - a * d;
return [d / ad_bc, b / bc_ad, c / bc_ad, a / ad_bc, (d * e - c * f) / bc_ad, (b * e - a * f) / ad_bc];
}
});
ctx.save = function ctxSave() {
var old = this._transformMatrix;
this._transformStack.push(old);
this._transformMatrix = old.slice(0, 6);
this._originalSave();
};
ctx.restore = function ctxRestore() {
var prev = this._transformStack.pop();
if (prev) {
this._transformMatrix = prev;
this._originalRestore();
}
};
ctx.translate = function ctxTranslate(x, y) {
var m = this._transformMatrix;
m[4] = m[0] * x + m[2] * y + m[4];
m[5] = m[1] * x + m[3] * y + m[5];
this._originalTranslate(x, y);
};
ctx.scale = function ctxScale(x, y) {
var m = this._transformMatrix;
m[0] = m[0] * x;
m[1] = m[1] * x;
m[2] = m[2] * y;
m[3] = m[3] * y;
this._originalScale(x, y);
};
ctx.transform = function ctxTransform(a, b, c, d, e, f) {
var m = this._transformMatrix;
this._transformMatrix = [m[0] * a + m[2] * b, m[1] * a + m[3] * b, m[0] * c + m[2] * d, m[1] * c + m[3] * d, m[0] * e + m[2] * f + m[4], m[1] * e + m[3] * f + m[5]];
ctx._originalTransform(a, b, c, d, e, f);
};
ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
this._transformMatrix = [a, b, c, d, e, f];
ctx._originalSetTransform(a, b, c, d, e, f);
};
ctx.rotate = function ctxRotate(angle) {
var cosValue = Math.cos(angle);
var sinValue = Math.sin(angle);
var m = this._transformMatrix;
this._transformMatrix = [m[0] * cosValue + m[2] * sinValue, m[1] * cosValue + m[3] * sinValue, m[0] * -sinValue + m[2] * cosValue, m[1] * -sinValue + m[3] * cosValue, m[4], m[5]];
this._originalRotate(angle);
};
}
}
var CachedCanvases = function CachedCanvasesClosure() {
function CachedCanvases(canvasFactory) {
this.canvasFactory = canvasFactory;
this.cache = Object.create(null);
}
CachedCanvases.prototype = {
getCanvas: function CachedCanvases_getCanvas(id, width, height, trackTransform) {
var canvasEntry;
if (this.cache[id] !== undefined) {
canvasEntry = this.cache[id];
this.canvasFactory.reset(canvasEntry, width, height);
canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
} else {
canvasEntry = this.canvasFactory.create(width, height);
this.cache[id] = canvasEntry;
}
if (trackTransform) {
addContextCurrentTransform(canvasEntry.context);
}
return canvasEntry;
},
clear() {
for (var id in this.cache) {
var canvasEntry = this.cache[id];
this.canvasFactory.destroy(canvasEntry);
delete this.cache[id];
}
}
};
return CachedCanvases;
}();
function compileType3Glyph(imgData) {
var POINT_TO_PROCESS_LIMIT = 1000;
var width = imgData.width,
height = imgData.height;
var i,
j,
j0,
width1 = width + 1;
var points = new Uint8Array(width1 * (height + 1));
var POINT_TYPES = new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
var lineSize = width + 7 & ~7,
data0 = imgData.data;
var data = new Uint8Array(lineSize * height),
pos = 0,
ii;
for (i = 0, ii = data0.length; i < ii; i++) {
var mask = 128,
elem = data0[i];
while (mask > 0) {
data[pos++] = elem & mask ? 0 : 255;
mask >>= 1;
}
}
var count = 0;
pos = 0;
if (data[pos] !== 0) {
points[0] = 1;
++count;
}
for (j = 1; j < width; j++) {
if (data[pos] !== data[pos + 1]) {
points[j] = data[pos] ? 2 : 1;
++count;
}
pos++;
}
if (data[pos] !== 0) {
points[j] = 2;
++count;
}
for (i = 1; i < height; i++) {
pos = i * lineSize;
j0 = i * width1;
if (data[pos - lineSize] !== data[pos]) {
points[j0] = data[pos] ? 1 : 8;
++count;
}
var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);
for (j = 1; j < width; j++) {
sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + (data[pos - lineSize + 1] ? 8 : 0);
if (POINT_TYPES[sum]) {
points[j0 + j] = POINT_TYPES[sum];
++count;
}
pos++;
}
if (data[pos - lineSize] !== data[pos]) {
points[j0 + j] = data[pos] ? 2 : 4;
++count;
}
if (count > POINT_TO_PROCESS_LIMIT) {
return null;
}
}
pos = lineSize * (height - 1);
j0 = i * width1;
if (data[pos] !== 0) {
points[j0] = 8;
++count;
}
for (j = 1; j < width; j++) {
if (data[pos] !== data[pos + 1]) {
points[j0 + j] = data[pos] ? 4 : 8;
++count;
}
pos++;
}
if (data[pos] !== 0) {
points[j0 + j] = 4;
++count;
}
if (count > POINT_TO_PROCESS_LIMIT) {
return null;
}
var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
var outlines = [];
for (i = 0; count && i <= height; i++) {
var p = i * width1;
var end = p + width;
while (p < end && !points[p]) {
p++;
}
if (p === end) {
continue;
}
var coords = [p % width1, i];
var type = points[p],
p0 = p,
pp;
do {
var step = steps[type];
do {
p += step;
} while (!points[p]);
pp = points[p];
if (pp !== 5 && pp !== 10) {
type = pp;
points[p] = 0;
} else {
type = pp & 0x33 * type >> 4;
points[p] &= type >> 2 | type << 2;
}
coords.push(p % width1);
coords.push(p / width1 | 0);
if (!points[p]) {
--count;
}
} while (p0 !== p);
outlines.push(coords);
--i;
}
var drawOutline = function (c) {
c.save();
c.scale(1 / width, -1 / height);
c.translate(0, -height);
c.beginPath();
for (var i = 0, ii = outlines.length; i < ii; i++) {
var o = outlines[i];
c.moveTo(o[0], o[1]);
for (var j = 2, jj = o.length; j < jj; j += 2) {
c.lineTo(o[j], o[j + 1]);
}
}
c.fill();
c.beginPath();
c.restore();
};
return drawOutline;
}
var CanvasExtraState = function CanvasExtraStateClosure() {
function CanvasExtraState() {
this.alphaIsShape = false;
this.fontSize = 0;
this.fontSizeScale = 1;
this.textMatrix = _util.IDENTITY_MATRIX;
this.textMatrixScale = 1;
this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
this.leading = 0;
this.x = 0;
this.y = 0;
this.lineX = 0;
this.lineY = 0;
this.charSpacing = 0;
this.wordSpacing = 0;
this.textHScale = 1;
this.textRenderingMode = _util.TextRenderingMode.FILL;
this.textRise = 0;
this.fillColor = "#000000";
this.strokeColor = "#000000";
this.patternFill = false;
this.fillAlpha = 1;
this.strokeAlpha = 1;
this.lineWidth = 1;
this.activeSMask = null;
this.resumeSMaskCtx = null;
}
CanvasExtraState.prototype = {
clone: function CanvasExtraState_clone() {
return Object.create(this);
},
setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
this.x = x;
this.y = y;
}
};
return CanvasExtraState;
}();
var CanvasGraphics = function CanvasGraphicsClosure() {
var EXECUTION_TIME = 15;
var EXECUTION_STEPS = 10;
function CanvasGraphics(canvasCtx, commonObjs, objs, canvasFactory, webGLContext, imageLayer) {
this.ctx = canvasCtx;
this.current = new CanvasExtraState();
this.stateStack = [];
this.pendingClip = null;
this.pendingEOFill = false;
this.res = null;
this.xobjs = null;
this.commonObjs = commonObjs;
this.objs = objs;
this.canvasFactory = canvasFactory;
this.webGLContext = webGLContext;
this.imageLayer = imageLayer;
this.groupStack = [];
this.processingType3 = null;
this.baseTransform = null;
this.baseTransformStack = [];
this.groupLevel = 0;
this.smaskStack = [];
this.smaskCounter = 0;
this.tempSMask = null;
this.cachedCanvases = new CachedCanvases(this.canvasFactory);
if (canvasCtx) {
addContextCurrentTransform(canvasCtx);
}
this._cachedGetSinglePixelWidth = null;
}
function putBinaryImageData(ctx, imgData) {
if (typeof ImageData !== "undefined" && imgData instanceof ImageData) {
ctx.putImageData(imgData, 0, 0);
return;
}
var height = imgData.height,
width = imgData.width;
var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
var srcPos = 0,
destPos;
var src = imgData.data;
var dest = chunkImgData.data;
var i, j, thisChunkHeight, elemsInThisChunk;
if (imgData.kind === _util.ImageKind.GRAYSCALE_1BPP) {
var srcLength = src.byteLength;
var dest32 = new Uint32Array(dest.buffer, 0, dest.byteLength >> 2);
var dest32DataLength = dest32.length;
var fullSrcDiff = width + 7 >> 3;
var white = 0xffffffff;
var black = _util.IsLittleEndianCached.value ? 0xff000000 : 0x000000ff;
for (i = 0; i < totalChunks; i++) {
thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
destPos = 0;
for (j = 0; j < thisChunkHeight; j++) {
var srcDiff = srcLength - srcPos;
var k = 0;
var kEnd = srcDiff > fullSrcDiff ? width : srcDiff * 8 - 7;
var kEndUnrolled = kEnd & ~7;
var mask = 0;
var srcByte = 0;
for (; k < kEndUnrolled; k += 8) {
srcByte = src[srcPos++];
dest32[destPos++] = srcByte & 128 ? white : black;
dest32[destPos++] = srcByte & 64 ? white : black;
dest32[destPos++] = srcByte & 32 ? white : black;
dest32[destPos++] = srcByte & 16 ? white : black;
dest32[destPos++] = srcByte & 8 ? white : black;
dest32[destPos++] = srcByte & 4 ? white : black;
dest32[destPos++] = srcByte & 2 ? white : black;
dest32[destPos++] = srcByte & 1 ? white : black;
}
for (; k < kEnd; k++) {
if (mask === 0) {
srcByte = src[srcPos++];
mask = 128;
}
dest32[destPos++] = srcByte & mask ? white : black;
mask >>= 1;
}
}
while (destPos < dest32DataLength) {
dest32[destPos++] = 0;
}
ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
}
} else if (imgData.kind === _util.ImageKind.RGBA_32BPP) {
j = 0;
elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;
for (i = 0; i < fullChunks; i++) {
dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
srcPos += elemsInThisChunk;
ctx.putImageData(chunkImgData, 0, j);
j += FULL_CHUNK_HEIGHT;
}
if (i < totalChunks) {
elemsInThisChunk = width * partialChunkHeight * 4;
dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
ctx.putImageData(chunkImgData, 0, j);
}
} else if (imgData.kind === _util.ImageKind.RGB_24BPP) {
thisChunkHeight = FULL_CHUNK_HEIGHT;
elemsInThisChunk = width * thisChunkHeight;
for (i = 0; i < totalChunks; i++) {
if (i >= fullChunks) {
thisChunkHeight = partialChunkHeight;
elemsInThisChunk = width * thisChunkHeight;
}
destPos = 0;
for (j = elemsInThisChunk; j--;) {
dest[destPos++] = src[srcPos++];
dest[destPos++] = src[srcPos++];
dest[destPos++] = src[srcPos++];
dest[destPos++] = 255;
}
ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
}
} else {
throw new Error(`bad image kind: ${imgData.kind}`);
}
}
function putBinaryImageMask(ctx, imgData) {
var height = imgData.height,
width = imgData.width;
var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
var srcPos = 0;
var src = imgData.data;
var dest = chunkImgData.data;
for (var i = 0; i < totalChunks; i++) {
var thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
var destPos = 3;
for (var j = 0; j < thisChunkHeight; j++) {
var mask = 0;
for (var k = 0; k < width; k++) {
if (!mask) {
var elem = src[srcPos++];
mask = 128;
}
dest[destPos] = elem & mask ? 0 : 255;
destPos += 4;
mask >>= 1;
}
}
ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
}
}
function copyCtxState(sourceCtx, destCtx) {
var properties = ["strokeStyle", "fillStyle", "fillRule", "globalAlpha", "lineWidth", "lineCap", "lineJoin", "miterLimit", "globalCompositeOperation", "font"];
for (var i = 0, ii = properties.length; i < ii; i++) {
var property = properties[i];
if (sourceCtx[property] !== undefined) {
destCtx[property] = sourceCtx[property];
}
}
if (sourceCtx.setLineDash !== undefined) {
destCtx.setLineDash(sourceCtx.getLineDash());
destCtx.lineDashOffset = sourceCtx.lineDashOffset;
}
}
function resetCtxToDefault(ctx) {
ctx.strokeStyle = "#000000";
ctx.fillStyle = "#000000";
ctx.fillRule = "nonzero";
ctx.globalAlpha = 1;
ctx.lineWidth = 1;
ctx.lineCap = "butt";
ctx.lineJoin = "miter";
ctx.miterLimit = 10;
ctx.globalCompositeOperation = "source-over";
ctx.font = "10px sans-serif";
if (ctx.setLineDash !== undefined) {
ctx.setLineDash([]);
ctx.lineDashOffset = 0;
}
}
function composeSMaskBackdrop(bytes, r0, g0, b0) {
var length = bytes.length;
for (var i = 3; i < length; i += 4) {
var alpha = bytes[i];
if (alpha === 0) {
bytes[i - 3] = r0;
bytes[i - 2] = g0;
bytes[i - 1] = b0;
} else if (alpha < 255) {
var alpha_ = 255 - alpha;
bytes[i - 3] = bytes[i - 3] * alpha + r0 * alpha_ >> 8;
bytes[i - 2] = bytes[i - 2] * alpha + g0 * alpha_ >> 8;
bytes[i - 1] = bytes[i - 1] * alpha + b0 * alpha_ >> 8;
}
}
}
function composeSMaskAlpha(maskData, layerData, transferMap) {
var length = maskData.length;
var scale = 1 / 255;
for (var i = 3; i < length; i += 4) {
var alpha = transferMap ? transferMap[maskData[i]] : maskData[i];
layerData[i] = layerData[i] * alpha * scale | 0;
}
}
function composeSMaskLuminosity(maskData, layerData, transferMap) {
var length = maskData.length;
for (var i = 3; i < length; i += 4) {
var y = maskData[i - 3] * 77 + maskData[i - 2] * 152 + maskData[i - 1] * 28;
layerData[i] = transferMap ? layerData[i] * transferMap[y >> 8] >> 8 : layerData[i] * y >> 16;
}
}
function genericComposeSMask(maskCtx, layerCtx, width, height, subtype, backdrop, transferMap) {
var hasBackdrop = !!backdrop;
var r0 = hasBackdrop ? backdrop[0] : 0;
var g0 = hasBackdrop ? backdrop[1] : 0;
var b0 = hasBackdrop ? backdrop[2] : 0;
var composeFn;
if (subtype === "Luminosity") {
composeFn = composeSMaskLuminosity;
} else {
composeFn = composeSMaskAlpha;
}
var PIXELS_TO_PROCESS = 1048576;
var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));
for (var row = 0; row < height; row += chunkSize) {
var chunkHeight = Math.min(chunkSize, height - row);
var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
var layerData = layerCtx.getImageData(0, row, width, chunkHeight);
if (hasBackdrop) {
composeSMaskBackdrop(maskData.data, r0, g0, b0);
}
composeFn(maskData.data, layerData.data, transferMap);
maskCtx.putImageData(layerData, 0, row);
}
}
function composeSMask(ctx, smask, layerCtx, webGLContext) {
var mask = smask.canvas;
var maskCtx = smask.context;
ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, smask.offsetX, smask.offsetY);
var backdrop = smask.backdrop || null;
if (!smask.transferMap && webGLContext.isEnabled) {
const composed = webGLContext.composeSMask({
layer: layerCtx.canvas,
mask,
properties: {
subtype: smask.subtype,
backdrop
}
});
ctx.setTransform(1, 0, 0, 1, 0, 0);
ctx.drawImage(composed, smask.offsetX, smask.offsetY);
return;
}
genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, smask.subtype, backdrop, smask.transferMap);
ctx.drawImage(mask, 0, 0);
}
var LINE_CAP_STYLES = ["butt", "round", "square"];
var LINE_JOIN_STYLES = ["miter", "round", "bevel"];
var NORMAL_CLIP = {};
var EO_CLIP = {};
CanvasGraphics.prototype = {
beginDrawing({
transform,
viewport,
transparency = false,
background = null
}) {
var width = this.ctx.canvas.width;
var height = this.ctx.canvas.height;
this.ctx.save();
this.ctx.fillStyle = background || "rgb(255, 255, 255)";
this.ctx.fillRect(0, 0, width, height);
this.ctx.restore();
if (transparency) {
var transparentCanvas = this.cachedCanvases.getCanvas("transparent", width, height, true);
this.compositeCtx = this.ctx;
this.transparentCanvas = transparentCanvas.canvas;
this.ctx = transparentCanvas.context;
this.ctx.save();
this.ctx.transform.apply(this.ctx, this.compositeCtx.mozCurrentTransform);
}
this.ctx.save();
resetCtxToDefault(this.ctx);
if (transform) {
this.ctx.transform.apply(this.ctx, transform);
}
this.ctx.transform.apply(this.ctx, viewport.transform);
this.baseTransform = this.ctx.mozCurrentTransform.slice();
if (this.imageLayer) {
this.imageLayer.beginLayout();
}
},
executeOperatorList: function CanvasGraphics_executeOperatorList(operatorList, executionStartIdx, continueCallback, stepper) {
var argsArray = operatorList.argsArray;
var fnArray = operatorList.fnArray;
var i = executionStartIdx || 0;
var argsArrayLen = argsArray.length;
if (argsArrayLen === i) {
return i;
}
var chunkOperations = argsArrayLen - i > EXECUTION_STEPS && typeof continueCallback === "function";
var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
var steps = 0;
var commonObjs = this.commonObjs;
var objs = this.objs;
var fnId;
while (true) {
if (stepper !== undefined && i === stepper.nextBreakPoint) {
stepper.breakIt(i, continueCallback);
return i;
}
fnId = fnArray[i];
if (fnId !== _util.OPS.dependency) {
this[fnId].apply(this, argsArray[i]);
} else {
for (const depObjId of argsArray[i]) {
const objsPool = depObjId.startsWith("g_") ? commonObjs : objs;
if (!objsPool.has(depObjId)) {
objsPool.get(depObjId, continueCallback);
return i;
}
}
}
i++;
if (i === argsArrayLen) {
return i;
}
if (chunkOperations && ++steps > EXECUTION_STEPS) {
if (Date.now() > endTime) {
continueCallback();
return i;
}
steps = 0;
}
}
},
endDrawing: function CanvasGraphics_endDrawing() {
if (this.current.activeSMask !== null) {
this.endSMaskGroup();
}
this.ctx.restore();
if (this.transparentCanvas) {
this.ctx = this.compositeCtx;
this.ctx.save();
this.ctx.setTransform(1, 0, 0, 1, 0, 0);
this.ctx.drawImage(this.transparentCanvas, 0, 0);
this.ctx.restore();
this.transparentCanvas = null;
}
this.cachedCanvases.clear();
this.webGLContext.clear();
if (this.imageLayer) {
this.imageLayer.endLayout();
}
},
setLineWidth: function CanvasGraphics_setLineWidth(width) {
this.current.lineWidth = width;
this.ctx.lineWidth = width;
},
setLineCap: function CanvasGraphics_setLineCap(style) {
this.ctx.lineCap = LINE_CAP_STYLES[style];
},
setLineJoin: function CanvasGraphics_setLineJoin(style) {
this.ctx.lineJoin = LINE_JOIN_STYLES[style];
},
setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
this.ctx.miterLimit = limit;
},
setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
var ctx = this.ctx;
if (ctx.setLineDash !== undefined) {
ctx.setLineDash(dashArray);
ctx.lineDashOffset = dashPhase;
}
},
setRenderingIntent(intent) {},
setFlatness(flatness) {},
setGState: function CanvasGraphics_setGState(states) {
for (var i = 0, ii = states.length; i < ii; i++) {
var state = states[i];
var key = state[0];
var value = state[1];
switch (key) {
case "LW":
this.setLineWidth(value);
break;
case "LC":
this.setLineCap(value);
break;
case "LJ":
this.setLineJoin(value);
break;
case "ML":
this.setMiterLimit(value);
break;
case "D":
this.setDash(value[0], value[1]);
break;
case "RI":
this.setRenderingIntent(value);
break;
case "FL":
this.setFlatness(value);
break;
case "Font":
this.setFont(value[0], value[1]);
break;
case "CA":
this.current.strokeAlpha = state[1];
break;
case "ca":
this.current.fillAlpha = state[1];
this.ctx.globalAlpha = state[1];
break;
case "BM":
this.ctx.globalCompositeOperation = value;
break;
case "SMask":
if (this.current.activeSMask) {
if (this.stateStack.length > 0 && this.stateStack[this.stateStack.length - 1].activeSMask === this.current.activeSMask) {
this.suspendSMaskGroup();
} else {
this.endSMaskGroup();
}
}
this.current.activeSMask = value ? this.tempSMask : null;
if (this.current.activeSMask) {
this.beginSMaskGroup();
}
this.tempSMask = null;
break;
}
}
},
beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
var activeSMask = this.current.activeSMask;
var drawnWidth = activeSMask.canvas.width;
var drawnHeight = activeSMask.canvas.height;
var cacheId = "smaskGroupAt" + this.groupLevel;
var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
var currentCtx = this.ctx;
var currentTransform = currentCtx.mozCurrentTransform;
this.ctx.save();
var groupCtx = scratchCanvas.context;
groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
groupCtx.transform.apply(groupCtx, currentTransform);
activeSMask.startTransformInverse = groupCtx.mozCurrentTransformInverse;
copyCtxState(currentCtx, groupCtx);
this.ctx = groupCtx;
this.setGState([["BM", "source-over"], ["ca", 1], ["CA", 1]]);
this.groupStack.push(currentCtx);
this.groupLevel++;
},
suspendSMaskGroup: function CanvasGraphics_endSMaskGroup() {
var groupCtx = this.ctx;
this.groupLevel--;
this.ctx = this.groupStack.pop();
composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
this.ctx.restore();
this.ctx.save();
copyCtxState(groupCtx, this.ctx);
this.current.resumeSMaskCtx = groupCtx;
var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);
this.ctx.transform.apply(this.ctx, deltaTransform);
groupCtx.save();
groupCtx.setTransform(1, 0, 0, 1, 0, 0);
groupCtx.clearRect(0, 0, groupCtx.canvas.width, groupCtx.canvas.height);
groupCtx.restore();
},
resumeSMaskGroup: function CanvasGraphics_endSMaskGroup() {
var groupCtx = this.current.resumeSMaskCtx;
var currentCtx = this.ctx;
this.ctx = groupCtx;
this.groupStack.push(currentCtx);
this.groupLevel++;
},
endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
var groupCtx = this.ctx;
this.groupLevel--;
this.ctx = this.groupStack.pop();
composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
this.ctx.restore();
copyCtxState(groupCtx, this.ctx);
var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);
this.ctx.transform.apply(this.ctx, deltaTransform);
},
save: function CanvasGraphics_save() {
this.ctx.save();
var old = this.current;
this.stateStack.push(old);
this.current = old.clone();
this.current.resumeSMaskCtx = null;
},
restore: function CanvasGraphics_restore() {
if (this.current.resumeSMaskCtx) {
this.resumeSMaskGroup();
}
if (this.current.activeSMask !== null && (this.stateStack.length === 0 || this.stateStack[this.stateStack.length - 1].activeSMask !== this.current.activeSMask)) {
this.endSMaskGroup();
}
if (this.stateStack.length !== 0) {
this.current = this.stateStack.pop();
this.ctx.restore();
this.pendingClip = null;
this._cachedGetSinglePixelWidth = null;
}
},
transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
this.ctx.transform(a, b, c, d, e, f);
this._cachedGetSinglePixelWidth = null;
},
constructPath: function CanvasGraphics_constructPath(ops, args) {
var ctx = this.ctx;
var current = this.current;
var x = current.x,
y = current.y;
for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
switch (ops[i] | 0) {
case _util.OPS.rectangle:
x = args[j++];
y = args[j++];
var width = args[j++];
var height = args[j++];
if (width === 0) {
width = this.getSinglePixelWidth();
}
if (height === 0) {
height = this.getSinglePixelWidth();
}
var xw = x + width;
var yh = y + height;
this.ctx.moveTo(x, y);
this.ctx.lineTo(xw, y);
this.ctx.lineTo(xw, yh);
this.ctx.lineTo(x, yh);
this.ctx.lineTo(x, y);
this.ctx.closePath();
break;
case _util.OPS.moveTo:
x = args[j++];
y = args[j++];
ctx.moveTo(x, y);
break;
case _util.OPS.lineTo:
x = args[j++];
y = args[j++];
ctx.lineTo(x, y);
break;
case _util.OPS.curveTo:
x = args[j + 4];
y = args[j + 5];
ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
j += 6;
break;
case _util.OPS.curveTo2:
ctx.bezierCurveTo(x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
x = args[j + 2];
y = args[j + 3];
j += 4;
break;
case _util.OPS.curveTo3:
x = args[j + 2];
y = args[j + 3];
ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
j += 4;
break;
case _util.OPS.closePath:
ctx.closePath();
break;
}
}
current.setCurrentPoint(x, y);
},
closePath: function CanvasGraphics_closePath() {
this.ctx.closePath();
},
stroke: function CanvasGraphics_stroke(consumePath) {
consumePath = typeof consumePath !== "undefined" ? consumePath : true;
var ctx = this.ctx;
var strokeColor = this.current.strokeColor;
ctx.globalAlpha = this.current.strokeAlpha;
if (strokeColor && strokeColor.hasOwnProperty("type") && strokeColor.type === "Pattern") {
ctx.save();
const transform = ctx.mozCurrentTransform;
const scale = _util.Util.singularValueDecompose2dScale(transform)[0];
ctx.strokeStyle = strokeColor.getPattern(ctx, this);
ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth * scale);
ctx.stroke();
ctx.restore();
} else {
ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth);
ctx.stroke();
}
if (consumePath) {
this.consumePath();
}
ctx.globalAlpha = this.current.fillAlpha;
},
closeStroke: function CanvasGraphics_closeStroke() {
this.closePath();
this.stroke();
},
fill: function CanvasGraphics_fill(consumePath) {
consumePath = typeof consumePath !== "undefined" ? consumePath : true;
var ctx = this.ctx;
var fillColor = this.current.fillColor;
var isPatternFill = this.current.patternFill;
var needRestore = false;
if (isPatternFill) {
ctx.save();
if (this.baseTransform) {
ctx.setTransform.apply(ctx, this.baseTransform);
}
ctx.fillStyle = fillColor.getPattern(ctx, this);
needRestore = true;
}
if (this.pendingEOFill) {
ctx.fill("evenodd");
this.pendingEOFill = false;
} else {
ctx.fill();
}
if (needRestore) {
ctx.restore();
}
if (consumePath) {
this.consumePath();
}
},
eoFill: function CanvasGraphics_eoFill() {
this.pendingEOFill = true;
this.fill();
},
fillStroke: function CanvasGraphics_fillStroke() {
this.fill(false);
this.stroke(false);
this.consumePath();
},
eoFillStroke: function CanvasGraphics_eoFillStroke() {
this.pendingEOFill = true;
this.fillStroke();
},
closeFillStroke: function CanvasGraphics_closeFillStroke() {
this.closePath();
this.fillStroke();
},
closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
this.pendingEOFill = true;
this.closePath();
this.fillStroke();
},
endPath: function CanvasGraphics_endPath() {
this.consumePath();
},
clip: function CanvasGraphics_clip() {
this.pendingClip = NORMAL_CLIP;
},
eoClip: function CanvasGraphics_eoClip() {
this.pendingClip = EO_CLIP;
},
beginText: function CanvasGraphics_beginText() {
this.current.textMatrix = _util.IDENTITY_MATRIX;
this.current.textMatrixScale = 1;
this.current.x = this.current.lineX = 0;
this.current.y = this.current.lineY = 0;
},
endText: function CanvasGraphics_endText() {
var paths = this.pendingTextPaths;
var ctx = this.ctx;
if (paths === undefined) {
ctx.beginPath();
return;
}
ctx.save();
ctx.beginPath();
for (var i = 0; i < paths.length; i++) {
var path = paths[i];
ctx.setTransform.apply(ctx, path.transform);
ctx.translate(path.x, path.y);
path.addToPath(ctx, path.fontSize);
}
ctx.restore();
ctx.clip();
ctx.beginPath();
delete this.pendingTextPaths;
},
setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
this.current.charSpacing = spacing;
},
setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
this.current.wordSpacing = spacing;
},
setHScale: function CanvasGraphics_setHScale(scale) {
this.current.textHScale = scale / 100;
},
setLeading: function CanvasGraphics_setLeading(leading) {
this.current.leading = -leading;
},
setFont: function CanvasGraphics_setFont(fontRefName, size) {
var fontObj = this.commonObjs.get(fontRefName);
var current = this.current;
if (!fontObj) {
throw new Error(`Can't find font for ${fontRefName}`);
}
current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
if (current.fontMatrix[0] === 0 || current.fontMatrix[3] === 0) {
(0, _util.warn)("Invalid font matrix for font " + fontRefName);
}
if (size < 0) {
size = -size;
current.fontDirection = -1;
} else {
current.fontDirection = 1;
}
this.current.font = fontObj;
this.current.fontSize = size;
if (fontObj.isType3Font) {
return;
}
var name = fontObj.loadedName || "sans-serif";
let bold = "normal";
if (fontObj.black) {
bold = "900";
} else if (fontObj.bold) {
bold = "bold";
}
var italic = fontObj.italic ? "italic" : "normal";
var typeface = `"${name}", ${fontObj.fallbackName}`;
let browserFontSize = size;
if (size < MIN_FONT_SIZE) {
browserFontSize = MIN_FONT_SIZE;
} else if (size > MAX_FONT_SIZE) {
browserFontSize = MAX_FONT_SIZE;
}
this.current.fontSizeScale = size / browserFontSize;
this.ctx.font = `${italic} ${bold} ${browserFontSize}px ${typeface}`;
},
setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
this.current.textRenderingMode = mode;
},
setTextRise: function CanvasGraphics_setTextRise(rise) {
this.current.textRise = rise;
},
moveText: function CanvasGraphics_moveText(x, y) {
this.current.x = this.current.lineX += x;
this.current.y = this.current.lineY += y;
},
setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
this.setLeading(-y);
this.moveText(x, y);
},
setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
this.current.textMatrix = [a, b, c, d, e, f];
this.current.textMatrixScale = Math.sqrt(a * a + b * b);
this.current.x = this.current.lineX = 0;
this.current.y = this.current.lineY = 0;
},
nextLine: function CanvasGraphics_nextLine() {
this.moveText(0, this.current.leading);
},
paintChar(character, x, y, patternTransform) {
var ctx = this.ctx;
var current = this.current;
var font = current.font;
var textRenderingMode = current.textRenderingMode;
var fontSize = current.fontSize / current.fontSizeScale;
var fillStrokeMode = textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
var isAddToPathSet = !!(textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG);
const patternFill = current.patternFill && font.data;
var addToPath;
if (font.disableFontFace || isAddToPathSet || patternFill) {
addToPath = font.getPathGenerator(this.commonObjs, character);
}
if (font.disableFontFace || patternFill) {
ctx.save();
ctx.translate(x, y);
ctx.beginPath();
addToPath(ctx, fontSize);
if (patternTransform) {
ctx.setTransform.apply(ctx, patternTransform);
}
if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
ctx.fill();
}
if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
ctx.stroke();
}
ctx.restore();
} else {
if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
ctx.fillText(character, x, y);
}
if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
ctx.strokeText(character, x, y);
}
}
if (isAddToPathSet) {
var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
paths.push({
transform: ctx.mozCurrentTransform,
x,
y,
fontSize,
addToPath
});
}
},
get isFontSubpixelAAEnabled() {
const {
context: ctx
} = this.cachedCanvases.getCanvas("isFontSubpixelAAEnabled", 10, 10);
ctx.scale(1.5, 1);
ctx.fillText("I", 0, 10);
var data = ctx.getImageData(0, 0, 10, 10).data;
var enabled = false;
for (var i = 3; i < data.length; i += 4) {
if (data[i] > 0 && data[i] < 255) {
enabled = true;
break;
}
}
return (0, _util.shadow)(this, "isFontSubpixelAAEnabled", enabled);
},
showText: function CanvasGraphics_showText(glyphs) {
var current = this.current;
var font = current.font;
if (font.isType3Font) {
return this.showType3Text(glyphs);
}
var fontSize = current.fontSize;
if (fontSize === 0) {
return undefined;
}
var ctx = this.ctx;
var fontSizeScale = current.fontSizeScale;
var charSpacing = current.charSpacing;
var wordSpacing = current.wordSpacing;
var fontDirection = current.fontDirection;
var textHScale = current.textHScale * fontDirection;
var glyphsLength = glyphs.length;
var vertical = font.vertical;
var spacingDir = vertical ? 1 : -1;
var defaultVMetrics = font.defaultVMetrics;
var widthAdvanceScale = fontSize * current.fontMatrix[0];
var simpleFillText = current.textRenderingMode === _util.TextRenderingMode.FILL && !font.disableFontFace && !current.patternFill;
ctx.save();
let patternTransform;
if (current.patternFill) {
ctx.save();
const pattern = current.fillColor.getPattern(ctx, this);
patternTransform = ctx.mozCurrentTransform;
ctx.restore();
ctx.fillStyle = pattern;
}
ctx.transform.apply(ctx, current.textMatrix);
ctx.translate(current.x, current.y + current.textRise);
if (fontDirection > 0) {
ctx.scale(textHScale, -1);
} else {
ctx.scale(textHScale, 1);
}
var lineWidth = current.lineWidth;
var scale = current.textMatrixScale;
if (scale === 0 || lineWidth === 0) {
var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
this._cachedGetSinglePixelWidth = null;
lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
}
} else {
lineWidth /= scale;
}
if (fontSizeScale !== 1.0) {
ctx.scale(fontSizeScale, fontSizeScale);
lineWidth /= fontSizeScale;
}
ctx.lineWidth = lineWidth;
var x = 0,
i;
for (i = 0; i < glyphsLength; ++i) {
var glyph = glyphs[i];
if ((0, _util.isNum)(glyph)) {
x += spacingDir * glyph * fontSize / 1000;
continue;
}
var restoreNeeded = false;
var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
var character = glyph.fontChar;
var accent = glyph.accent;
var scaledX, scaledY, scaledAccentX, scaledAccentY;
var width = glyph.width;
if (vertical) {
var vmetric, vx, vy;
vmetric = glyph.vmetric || defaultVMetrics;
vx = glyph.vmetric ? vmetric[1] : width * 0.5;
vx = -vx * widthAdvanceScale;
vy = vmetric[2] * widthAdvanceScale;
width = vmetric ? -vmetric[0] : width;
scaledX = vx / fontSizeScale;
scaledY = (x + vy) / fontSizeScale;
} else {
scaledX = x / fontSizeScale;
scaledY = 0;
}
if (font.remeasure && width > 0) {
var measuredWidth = ctx.measureText(character).width * 1000 / fontSize * fontSizeScale;
if (width < measuredWidth && this.isFontSubpixelAAEnabled) {
var characterScaleX = width / measuredWidth;
restoreNeeded = true;
ctx.save();
ctx.scale(characterScaleX, 1);
scaledX /= characterScaleX;
} else if (width !== measuredWidth) {
scaledX += (width - measuredWidth) / 2000 * fontSize / fontSizeScale;
}
}
if (glyph.isInFont || font.missingFile) {
if (simpleFillText && !accent) {
ctx.fillText(character, scaledX, scaledY);
} else {
this.paintChar(character, scaledX, scaledY, patternTransform);
if (accent) {
scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY, patternTransform);
}
}
}
var charWidth;
if (vertical) {
charWidth = width * widthAdvanceScale - spacing * fontDirection;
} else {
charWidth = width * widthAdvanceScale + spacing * fontDirection;
}
x += charWidth;
if (restoreNeeded) {
ctx.restore();
}
}
if (vertical) {
current.y -= x;
} else {
current.x += x * textHScale;
}
ctx.restore();
},
showType3Text: function CanvasGraphics_showType3Text(glyphs) {
var ctx = this.ctx;
var current = this.current;
var font = current.font;
var fontSize = current.fontSize;
var fontDirection = current.fontDirection;
var spacingDir = font.vertical ? 1 : -1;
var charSpacing = current.charSpacing;
var wordSpacing = current.wordSpacing;
var textHScale = current.textHScale * fontDirection;
var fontMatrix = current.fontMatrix || _util.FONT_IDENTITY_MATRIX;
var glyphsLength = glyphs.length;
var isTextInvisible = current.textRenderingMode === _util.TextRenderingMode.INVISIBLE;
var i, glyph, width, spacingLength;
if (isTextInvisible || fontSize === 0) {
return;
}
this._cachedGetSinglePixelWidth = null;
ctx.save();
ctx.transform.apply(ctx, current.textMatrix);
ctx.translate(current.x, current.y);
ctx.scale(textHScale, fontDirection);
for (i = 0; i < glyphsLength; ++i) {
glyph = glyphs[i];
if ((0, _util.isNum)(glyph)) {
spacingLength = spacingDir * glyph * fontSize / 1000;
this.ctx.translate(spacingLength, 0);
current.x += spacingLength * textHScale;
continue;
}
var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
var operatorList = font.charProcOperatorList[glyph.operatorListId];
if (!operatorList) {
(0, _util.warn)(`Type3 character "${glyph.operatorListId}" is not available.`);
continue;
}
this.processingType3 = glyph;
this.save();
ctx.scale(fontSize, fontSize);
ctx.transform.apply(ctx, fontMatrix);
this.executeOperatorList(operatorList);
this.restore();
var transformed = _util.Util.applyTransform([glyph.width, 0], fontMatrix);
width = transformed[0] * fontSize + spacing;
ctx.translate(width, 0);
current.x += width * textHScale;
}
ctx.restore();
this.processingType3 = null;
},
setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {},
setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, yWidth, llx, lly, urx, ury) {
this.ctx.rect(llx, lly, urx - llx, ury - lly);
this.clip();
this.endPath();
},
getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
var pattern;
if (IR[0] === "TilingPattern") {
var color = IR[1];
var baseTransform = this.baseTransform || this.ctx.mozCurrentTransform.slice();
var canvasGraphicsFactory = {
createCanvasGraphics: ctx => {
return new CanvasGraphics(ctx, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext);
}
};
pattern = new _pattern_helper.TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, baseTransform);
} else {
pattern = (0, _pattern_helper.getShadingPatternFromIR)(IR);
}
return pattern;
},
setStrokeColorN: function CanvasGraphics_setStrokeColorN() {
this.current.strokeColor = this.getColorN_Pattern(arguments);
},
setFillColorN: function CanvasGraphics_setFillColorN() {
this.current.fillColor = this.getColorN_Pattern(arguments);
this.current.patternFill = true;
},
setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
var color = _util.Util.makeCssRgb(r, g, b);
this.ctx.strokeStyle = color;
this.current.strokeColor = color;
},
setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
var color = _util.Util.makeCssRgb(r, g, b);
this.ctx.fillStyle = color;
this.current.fillColor = color;
this.current.patternFill = false;
},
shadingFill: function CanvasGraphics_shadingFill(patternIR) {
var ctx = this.ctx;
this.save();
var pattern = (0, _pattern_helper.getShadingPatternFromIR)(patternIR);
ctx.fillStyle = pattern.getPattern(ctx, this, true);
var inv = ctx.mozCurrentTransformInverse;
if (inv) {
var canvas = ctx.canvas;
var width = canvas.width;
var height = canvas.height;
var bl = _util.Util.applyTransform([0, 0], inv);
var br = _util.Util.applyTransform([0, height], inv);
var ul = _util.Util.applyTransform([width, 0], inv);
var ur = _util.Util.applyTransform([width, height], inv);
var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
} else {
this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
}
this.restore();
},
beginInlineImage: function CanvasGraphics_beginInlineImage() {
(0, _util.unreachable)("Should not call beginInlineImage");
},
beginImageData: function CanvasGraphics_beginImageData() {
(0, _util.unreachable)("Should not call beginImageData");
},
paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, bbox) {
this.save();
this.baseTransformStack.push(this.baseTransform);
if (Array.isArray(matrix) && matrix.length === 6) {
this.transform.apply(this, matrix);
}
this.baseTransform = this.ctx.mozCurrentTransform;
if (bbox) {
var width = bbox[2] - bbox[0];
var height = bbox[3] - bbox[1];
this.ctx.rect(bbox[0], bbox[1], width, height);
this.clip();
this.endPath();
}
},
paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
this.restore();
this.baseTransform = this.baseTransformStack.pop();
},
beginGroup: function CanvasGraphics_beginGroup(group) {
this.save();
var currentCtx = this.ctx;
if (!group.isolated) {
(0, _util.info)("TODO: Support non-isolated groups.");
}
if (group.knockout) {
(0, _util.warn)("Knockout groups not supported.");
}
var currentTransform = currentCtx.mozCurrentTransform;
if (group.matrix) {
currentCtx.transform.apply(currentCtx, group.matrix);
}
if (!group.bbox) {
throw new Error("Bounding box is required.");
}
var bounds = _util.Util.getAxialAlignedBoundingBox(group.bbox, currentCtx.mozCurrentTransform);
var canvasBounds = [0, 0, currentCtx.canvas.width, currentCtx.canvas.height];
bounds = _util.Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
var offsetX = Math.floor(bounds[0]);
var offsetY = Math.floor(bounds[1]);
var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
var scaleX = 1,
scaleY = 1;
if (drawnWidth > MAX_GROUP_SIZE) {
scaleX = drawnWidth / MAX_GROUP_SIZE;
drawnWidth = MAX_GROUP_SIZE;
}
if (drawnHeight > MAX_GROUP_SIZE) {
scaleY = drawnHeight / MAX_GROUP_SIZE;
drawnHeight = MAX_GROUP_SIZE;
}
var cacheId = "groupAt" + this.groupLevel;
if (group.smask) {
cacheId += "_smask_" + this.smaskCounter++ % 2;
}
var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
var groupCtx = scratchCanvas.context;
groupCtx.scale(1 / scaleX, 1 / scaleY);
groupCtx.translate(-offsetX, -offsetY);
groupCtx.transform.apply(groupCtx, currentTransform);
if (group.smask) {
this.smaskStack.push({
canvas: scratchCanvas.canvas,
context: groupCtx,
offsetX,
offsetY,
scaleX,
scaleY,
subtype: group.smask.subtype,
backdrop: group.smask.backdrop,
transferMap: group.smask.transferMap || null,
startTransformInverse: null
});
} else {
currentCtx.setTransform(1, 0, 0, 1, 0, 0);
currentCtx.translate(offsetX, offsetY);
currentCtx.scale(scaleX, scaleY);
}
copyCtxState(currentCtx, groupCtx);
this.ctx = groupCtx;
this.setGState([["BM", "source-over"], ["ca", 1], ["CA", 1]]);
this.groupStack.push(currentCtx);
this.groupLevel++;
this.current.activeSMask = null;
},
endGroup: function CanvasGraphics_endGroup(group) {
this.groupLevel--;
var groupCtx = this.ctx;
this.ctx = this.groupStack.pop();
if (this.ctx.imageSmoothingEnabled !== undefined) {
this.ctx.imageSmoothingEnabled = false;
} else {
this.ctx.mozImageSmoothingEnabled = false;
}
if (group.smask) {
this.tempSMask = this.smaskStack.pop();
} else {
this.ctx.drawImage(groupCtx.canvas, 0, 0);
}
this.restore();
},
beginAnnotations: function CanvasGraphics_beginAnnotations() {
this.save();
if (this.baseTransform) {
this.ctx.setTransform.apply(this.ctx, this.baseTransform);
}
},
endAnnotations: function CanvasGraphics_endAnnotations() {
this.restore();
},
beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, matrix) {
this.save();
resetCtxToDefault(this.ctx);
this.current = new CanvasExtraState();
if (Array.isArray(rect) && rect.length === 4) {
var width = rect[2] - rect[0];
var height = rect[3] - rect[1];
this.ctx.rect(rect[0], rect[1], width, height);
this.clip();
this.endPath();
}
this.transform.apply(this, transform);
this.transform.apply(this, matrix);
},
endAnnotation: function CanvasGraphics_endAnnotation() {
this.restore();
},
paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
const domImage = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);
if (!domImage) {
(0, _util.warn)("Dependent image isn't ready yet");
return;
}
this.save();
var ctx = this.ctx;
ctx.scale(1 / w, -1 / h);
ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, 0, -h, w, h);
if (this.imageLayer) {
var currentTransform = ctx.mozCurrentTransformInverse;
var position = this.getCanvasPosition(0, 0);
this.imageLayer.appendImage({
objId,
left: position[0],
top: position[1],
width: w / currentTransform[0],
height: h / currentTransform[3]
});
}
this.restore();
},
paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
var ctx = this.ctx;
var width = img.width,
height = img.height;
var fillColor = this.current.fillColor;
var isPatternFill = this.current.patternFill;
var glyph = this.processingType3;
if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
glyph.compiled = compileType3Glyph({
data: img.data,
width,
height
});
} else {
glyph.compiled = null;
}
}
if (glyph && glyph.compiled) {
glyph.compiled(ctx);
return;
}
var maskCanvas = this.cachedCanvases.getCanvas("maskCanvas", width, height);
var maskCtx = maskCanvas.context;
maskCtx.save();
putBinaryImageMask(maskCtx, img);
maskCtx.globalCompositeOperation = "source-in";
maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
maskCtx.fillRect(0, 0, width, height);
maskCtx.restore();
this.paintInlineImageXObject(maskCanvas.canvas);
},
paintImageMaskXObjectRepeat: function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, scaleY, positions) {
var width = imgData.width;
var height = imgData.height;
var fillColor = this.current.fillColor;
var isPatternFill = this.current.patternFill;
var maskCanvas = this.cachedCanvases.getCanvas("maskCanvas", width, height);
var maskCtx = maskCanvas.context;
maskCtx.save();
putBinaryImageMask(maskCtx, imgData);
maskCtx.globalCompositeOperation = "source-in";
maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
maskCtx.fillRect(0, 0, width, height);
maskCtx.restore();
var ctx = this.ctx;
for (var i = 0, ii = positions.length; i < ii; i += 2) {
ctx.save();
ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
ctx.scale(1, -1);
ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
ctx.restore();
}
},
paintImageMaskXObjectGroup: function CanvasGraphics_paintImageMaskXObjectGroup(images) {
var ctx = this.ctx;
var fillColor = this.current.fillColor;
var isPatternFill = this.current.patternFill;
for (var i = 0, ii = images.length; i < ii; i++) {
var image = images[i];
var width = image.width,
height = image.height;
var maskCanvas = this.cachedCanvases.getCanvas("maskCanvas", width, height);
var maskCtx = maskCanvas.context;
maskCtx.save();
putBinaryImageMask(maskCtx, image);
maskCtx.globalCompositeOperation = "source-in";
maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
maskCtx.fillRect(0, 0, width, height);
maskCtx.restore();
ctx.save();
ctx.transform.apply(ctx, image.transform);
ctx.scale(1, -1);
ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
ctx.restore();
}
},
paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
const imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);
if (!imgData) {
(0, _util.warn)("Dependent image isn't ready yet");
return;
}
this.paintInlineImageXObject(imgData);
},
paintImageXObjectRepeat: function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, positions) {
const imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);
if (!imgData) {
(0, _util.warn)("Dependent image isn't ready yet");
return;
}
var width = imgData.width;
var height = imgData.height;
var map = [];
for (var i = 0, ii = positions.length; i < ii; i += 2) {
map.push({
transform: [scaleX, 0, 0, scaleY, positions[i], positions[i + 1]],
x: 0,
y: 0,
w: width,
h: height
});
}
this.paintInlineImageXObjectGroup(imgData, map);
},
paintInlineImageXObject: function CanvasGraphics_paintInlineImageXObject(imgData) {
var width = imgData.width;
var height = imgData.height;
var ctx = this.ctx;
this.save();
ctx.scale(1 / width, -1 / height);
var currentTransform = ctx.mozCurrentTransformInverse;
var a = currentTransform[0],
b = currentTransform[1];
var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
var c = currentTransform[2],
d = currentTransform[3];
var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
var imgToPaint, tmpCanvas;
if (typeof HTMLElement === "function" && imgData instanceof HTMLElement || !imgData.data) {
imgToPaint = imgData;
} else {
tmpCanvas = this.cachedCanvases.getCanvas("inlineImage", width, height);
var tmpCtx = tmpCanvas.context;
putBinaryImageData(tmpCtx, imgData);
imgToPaint = tmpCanvas.canvas;
}
var paintWidth = width,
paintHeight = height;
var tmpCanvasId = "prescale1";
while (widthScale > 2 && paintWidth > 1 || heightScale > 2 && paintHeight > 1) {
var newWidth = paintWidth,
newHeight = paintHeight;
if (widthScale > 2 && paintWidth > 1) {
newWidth = Math.ceil(paintWidth / 2);
widthScale /= paintWidth / newWidth;
}
if (heightScale > 2 && paintHeight > 1) {
newHeight = Math.ceil(paintHeight / 2);
heightScale /= paintHeight / newHeight;
}
tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
tmpCtx = tmpCanvas.context;
tmpCtx.clearRect(0, 0, newWidth, newHeight);
tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, 0, newWidth, newHeight);
imgToPaint = tmpCanvas.canvas;
paintWidth = newWidth;
paintHeight = newHeight;
tmpCanvasId = tmpCanvasId === "prescale1" ? "prescale2" : "prescale1";
}
ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, -height, width, height);
if (this.imageLayer) {
var position = this.getCanvasPosition(0, -height);
this.imageLayer.appendImage({
imgData,
left: position[0],
top: position[1],
width: width / currentTransform[0],
height: height / currentTransform[3]
});
}
this.restore();
},
paintInlineImageXObjectGroup: function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
var ctx = this.ctx;
var w = imgData.width;
var h = imgData.height;
var tmpCanvas = this.cachedCanvases.getCanvas("inlineImage", w, h);
var tmpCtx = tmpCanvas.context;
putBinaryImageData(tmpCtx, imgData);
for (var i = 0, ii = map.length; i < ii; i++) {
var entry = map[i];
ctx.save();
ctx.transform.apply(ctx, entry.transform);
ctx.scale(1, -1);
ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, 0, -1, 1, 1);
if (this.imageLayer) {
var position = this.getCanvasPosition(entry.x, entry.y);
this.imageLayer.appendImage({
imgData,
left: position[0],
top: position[1],
width: w,
height: h
});
}
ctx.restore();
}
},
paintSolidColorImageMask: function CanvasGraphics_paintSolidColorImageMask() {
this.ctx.fillRect(0, 0, 1, 1);
},
paintXObject: function CanvasGraphics_paintXObject() {
(0, _util.warn)("Unsupported 'paintXObject' command.");
},
markPoint: function CanvasGraphics_markPoint(tag) {},
markPointProps: function CanvasGraphics_markPointProps(tag, properties) {},
beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {},
beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(tag, properties) {},
endMarkedContent: function CanvasGraphics_endMarkedContent() {},
beginCompat: function CanvasGraphics_beginCompat() {},
endCompat: function CanvasGraphics_endCompat() {},
consumePath: function CanvasGraphics_consumePath() {
var ctx = this.ctx;
if (this.pendingClip) {
if (this.pendingClip === EO_CLIP) {
ctx.clip("evenodd");
} else {
ctx.clip();
}
this.pendingClip = null;
}
ctx.beginPath();
},
getSinglePixelWidth(scale) {
if (this._cachedGetSinglePixelWidth === null) {
const inverse = this.ctx.mozCurrentTransformInverse;
this._cachedGetSinglePixelWidth = Math.sqrt(Math.max(inverse[0] * inverse[0] + inverse[1] * inverse[1], inverse[2] * inverse[2] + inverse[3] * inverse[3]));
}
return this._cachedGetSinglePixelWidth;
},
getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
var transform = this.ctx.mozCurrentTransform;
return [transform[0] * x + transform[2] * y + transform[4], transform[1] * x + transform[3] * y + transform[5]];
}
};
for (var op in _util.OPS) {
CanvasGraphics.prototype[_util.OPS[op]] = CanvasGraphics.prototype[op];
}
return CanvasGraphics;
}();
exports.CanvasGraphics = CanvasGraphics;
/***/ }),
/* 9 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getShadingPatternFromIR = getShadingPatternFromIR;
exports.TilingPattern = void 0;
var _util = __w_pdfjs_require__(1);
var ShadingIRs = {};
function applyBoundingBox(ctx, bbox) {
if (!bbox || typeof Path2D === "undefined") {
return;
}
const width = bbox[2] - bbox[0];
const height = bbox[3] - bbox[1];
const region = new Path2D();
region.rect(bbox[0], bbox[1], width, height);
ctx.clip(region);
}
ShadingIRs.RadialAxial = {
fromIR: function RadialAxial_fromIR(raw) {
var type = raw[1];
var bbox = raw[2];
var colorStops = raw[3];
var p0 = raw[4];
var p1 = raw[5];
var r0 = raw[6];
var r1 = raw[7];
return {
type: "Pattern",
getPattern: function RadialAxial_getPattern(ctx) {
applyBoundingBox(ctx, bbox);
var grad;
if (type === "axial") {
grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
} else if (type === "radial") {
grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
}
for (var i = 0, ii = colorStops.length; i < ii; ++i) {
var c = colorStops[i];
grad.addColorStop(c[0], c[1]);
}
return grad;
}
};
}
};
var createMeshCanvas = function createMeshCanvasClosure() {
function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
var coords = context.coords,
colors = context.colors;
var bytes = data.data,
rowSize = data.width * 4;
var tmp;
if (coords[p1 + 1] > coords[p2 + 1]) {
tmp = p1;
p1 = p2;
p2 = tmp;
tmp = c1;
c1 = c2;
c2 = tmp;
}
if (coords[p2 + 1] > coords[p3 + 1]) {
tmp = p2;
p2 = p3;
p3 = tmp;
tmp = c2;
c2 = c3;
c3 = tmp;
}
if (coords[p1 + 1] > coords[p2 + 1]) {
tmp = p1;
p1 = p2;
p2 = tmp;
tmp = c1;
c1 = c2;
c2 = tmp;
}
var x1 = (coords[p1] + context.offsetX) * context.scaleX;
var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
var x2 = (coords[p2] + context.offsetX) * context.scaleX;
var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
var x3 = (coords[p3] + context.offsetX) * context.scaleX;
var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;
if (y1 >= y3) {
return;
}
var c1r = colors[c1],
c1g = colors[c1 + 1],
c1b = colors[c1 + 2];
var c2r = colors[c2],
c2g = colors[c2 + 1],
c2b = colors[c2 + 2];
var c3r = colors[c3],
c3g = colors[c3 + 1],
c3b = colors[c3 + 2];
var minY = Math.round(y1),
maxY = Math.round(y3);
var xa, car, cag, cab;
var xb, cbr, cbg, cbb;
for (var y = minY; y <= maxY; y++) {
if (y < y2) {
let k;
if (y < y1) {
k = 0;
} else if (y1 === y2) {
k = 1;
} else {
k = (y1 - y) / (y1 - y2);
}
xa = x1 - (x1 - x2) * k;
car = c1r - (c1r - c2r) * k;
cag = c1g - (c1g - c2g) * k;
cab = c1b - (c1b - c2b) * k;
} else {
let k;
if (y > y3) {
k = 1;
} else if (y2 === y3) {
k = 0;
} else {
k = (y2 - y) / (y2 - y3);
}
xa = x2 - (x2 - x3) * k;
car = c2r - (c2r - c3r) * k;
cag = c2g - (c2g - c3g) * k;
cab = c2b - (c2b - c3b) * k;
}
let k;
if (y < y1) {
k = 0;
} else if (y > y3) {
k = 1;
} else {
k = (y1 - y) / (y1 - y3);
}
xb = x1 - (x1 - x3) * k;
cbr = c1r - (c1r - c3r) * k;
cbg = c1g - (c1g - c3g) * k;
cbb = c1b - (c1b - c3b) * k;
var x1_ = Math.round(Math.min(xa, xb));
var x2_ = Math.round(Math.max(xa, xb));
var j = rowSize * y + x1_ * 4;
for (var x = x1_; x <= x2_; x++) {
let k = (xa - x) / (xa - xb);
if (k < 0) {
k = 0;
} else if (k > 1) {
k = 1;
}
bytes[j++] = car - (car - cbr) * k | 0;
bytes[j++] = cag - (cag - cbg) * k | 0;
bytes[j++] = cab - (cab - cbb) * k | 0;
bytes[j++] = 255;
}
}
}
function drawFigure(data, figure, context) {
var ps = figure.coords;
var cs = figure.colors;
var i, ii;
switch (figure.type) {
case "lattice":
var verticesPerRow = figure.verticesPerRow;
var rows = Math.floor(ps.length / verticesPerRow) - 1;
var cols = verticesPerRow - 1;
for (i = 0; i < rows; i++) {
var q = i * verticesPerRow;
for (var j = 0; j < cols; j++, q++) {
drawTriangle(data, context, ps[q], ps[q + 1], ps[q + verticesPerRow], cs[q], cs[q + 1], cs[q + verticesPerRow]);
drawTriangle(data, context, ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
}
}
break;
case "triangles":
for (i = 0, ii = ps.length; i < ii; i += 3) {
drawTriangle(data, context, ps[i], ps[i + 1], ps[i + 2], cs[i], cs[i + 1], cs[i + 2]);
}
break;
default:
throw new Error("illegal figure");
}
}
function createMeshCanvas(bounds, combinesScale, coords, colors, figures, backgroundColor, cachedCanvases, webGLContext) {
var EXPECTED_SCALE = 1.1;
var MAX_PATTERN_SIZE = 3000;
var BORDER_SIZE = 2;
var offsetX = Math.floor(bounds[0]);
var offsetY = Math.floor(bounds[1]);
var boundsWidth = Math.ceil(bounds[2]) - offsetX;
var boundsHeight = Math.ceil(bounds[3]) - offsetY;
var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
var scaleX = boundsWidth / width;
var scaleY = boundsHeight / height;
var context = {
coords,
colors,
offsetX: -offsetX,
offsetY: -offsetY,
scaleX: 1 / scaleX,
scaleY: 1 / scaleY
};
var paddedWidth = width + BORDER_SIZE * 2;
var paddedHeight = height + BORDER_SIZE * 2;
var canvas, tmpCanvas, i, ii;
if (webGLContext.isEnabled) {
canvas = webGLContext.drawFigures({
width,
height,
backgroundColor,
figures,
context
});
tmpCanvas = cachedCanvases.getCanvas("mesh", paddedWidth, paddedHeight, false);
tmpCanvas.context.drawImage(canvas, BORDER_SIZE, BORDER_SIZE);
canvas = tmpCanvas.canvas;
} else {
tmpCanvas = cachedCanvases.getCanvas("mesh", paddedWidth, paddedHeight, false);
var tmpCtx = tmpCanvas.context;
var data = tmpCtx.createImageData(width, height);
if (backgroundColor) {
var bytes = data.data;
for (i = 0, ii = bytes.length; i < ii; i += 4) {
bytes[i] = backgroundColor[0];
bytes[i + 1] = backgroundColor[1];
bytes[i + 2] = backgroundColor[2];
bytes[i + 3] = 255;
}
}
for (i = 0; i < figures.length; i++) {
drawFigure(data, figures[i], context);
}
tmpCtx.putImageData(data, BORDER_SIZE, BORDER_SIZE);
canvas = tmpCanvas.canvas;
}
return {
canvas,
offsetX: offsetX - BORDER_SIZE * scaleX,
offsetY: offsetY - BORDER_SIZE * scaleY,
scaleX,
scaleY
};
}
return createMeshCanvas;
}();
ShadingIRs.Mesh = {
fromIR: function Mesh_fromIR(raw) {
var coords = raw[2];
var colors = raw[3];
var figures = raw[4];
var bounds = raw[5];
var matrix = raw[6];
var bbox = raw[7];
var background = raw[8];
return {
type: "Pattern",
getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
applyBoundingBox(ctx, bbox);
var scale;
if (shadingFill) {
scale = _util.Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
} else {
scale = _util.Util.singularValueDecompose2dScale(owner.baseTransform);
if (matrix) {
var matrixScale = _util.Util.singularValueDecompose2dScale(matrix);
scale = [scale[0] * matrixScale[0], scale[1] * matrixScale[1]];
}
}
var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, colors, figures, shadingFill ? null : background, owner.cachedCanvases, owner.webGLContext);
if (!shadingFill) {
ctx.setTransform.apply(ctx, owner.baseTransform);
if (matrix) {
ctx.transform.apply(ctx, matrix);
}
}
ctx.translate(temporaryPatternCanvas.offsetX, temporaryPatternCanvas.offsetY);
ctx.scale(temporaryPatternCanvas.scaleX, temporaryPatternCanvas.scaleY);
return ctx.createPattern(temporaryPatternCanvas.canvas, "no-repeat");
}
};
}
};
ShadingIRs.Dummy = {
fromIR: function Dummy_fromIR() {
return {
type: "Pattern",
getPattern: function Dummy_fromIR_getPattern() {
return "hotpink";
}
};
}
};
function getShadingPatternFromIR(raw) {
var shadingIR = ShadingIRs[raw[0]];
if (!shadingIR) {
throw new Error(`Unknown IR type: ${raw[0]}`);
}
return shadingIR.fromIR(raw);
}
var TilingPattern = function TilingPatternClosure() {
var PaintType = {
COLORED: 1,
UNCOLORED: 2
};
var MAX_PATTERN_SIZE = 3000;
function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) {
this.operatorList = IR[2];
this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
this.bbox = IR[4];
this.xstep = IR[5];
this.ystep = IR[6];
this.paintType = IR[7];
this.tilingType = IR[8];
this.color = color;
this.canvasGraphicsFactory = canvasGraphicsFactory;
this.baseTransform = baseTransform;
this.type = "Pattern";
this.ctx = ctx;
}
TilingPattern.prototype = {
createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
var operatorList = this.operatorList;
var bbox = this.bbox;
var xstep = this.xstep;
var ystep = this.ystep;
var paintType = this.paintType;
var tilingType = this.tilingType;
var color = this.color;
var canvasGraphicsFactory = this.canvasGraphicsFactory;
(0, _util.info)("TilingType: " + tilingType);
var x0 = bbox[0],
y0 = bbox[1],
x1 = bbox[2],
y1 = bbox[3];
var matrixScale = _util.Util.singularValueDecompose2dScale(this.matrix);
var curMatrixScale = _util.Util.singularValueDecompose2dScale(this.baseTransform);
var combinedScale = [matrixScale[0] * curMatrixScale[0], matrixScale[1] * curMatrixScale[1]];
var dimx = this.getSizeAndScale(xstep, this.ctx.canvas.width, combinedScale[0]);
var dimy = this.getSizeAndScale(ystep, this.ctx.canvas.height, combinedScale[1]);
var tmpCanvas = owner.cachedCanvases.getCanvas("pattern", dimx.size, dimy.size, true);
var tmpCtx = tmpCanvas.context;
var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx);
graphics.groupLevel = owner.groupLevel;
this.setFillAndStrokeStyleToContext(graphics, paintType, color);
graphics.transform(dimx.scale, 0, 0, dimy.scale, 0, 0);
graphics.transform(1, 0, 0, 1, -x0, -y0);
this.clipBbox(graphics, bbox, x0, y0, x1, y1);
graphics.executeOperatorList(operatorList);
this.ctx.transform(1, 0, 0, 1, x0, y0);
this.ctx.scale(1 / dimx.scale, 1 / dimy.scale);
return tmpCanvas.canvas;
},
getSizeAndScale: function TilingPattern_getSizeAndScale(step, realOutputSize, scale) {
step = Math.abs(step);
var maxSize = Math.max(MAX_PATTERN_SIZE, realOutputSize);
var size = Math.ceil(step * scale);
if (size >= maxSize) {
size = maxSize;
} else {
scale = size / step;
}
return {
scale,
size
};
},
clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
if (Array.isArray(bbox) && bbox.length === 4) {
var bboxWidth = x1 - x0;
var bboxHeight = y1 - y0;
graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
graphics.clip();
graphics.endPath();
}
},
setFillAndStrokeStyleToContext: function setFillAndStrokeStyleToContext(graphics, paintType, color) {
const context = graphics.ctx,
current = graphics.current;
switch (paintType) {
case PaintType.COLORED:
var ctx = this.ctx;
context.fillStyle = ctx.fillStyle;
context.strokeStyle = ctx.strokeStyle;
current.fillColor = ctx.fillStyle;
current.strokeColor = ctx.strokeStyle;
break;
case PaintType.UNCOLORED:
var cssColor = _util.Util.makeCssRgb(color[0], color[1], color[2]);
context.fillStyle = cssColor;
context.strokeStyle = cssColor;
current.fillColor = cssColor;
current.strokeColor = cssColor;
break;
default:
throw new _util.FormatError(`Unsupported paint type: ${paintType}`);
}
},
getPattern: function TilingPattern_getPattern(ctx, owner) {
ctx = this.ctx;
ctx.setTransform.apply(ctx, this.baseTransform);
ctx.transform.apply(ctx, this.matrix);
var temporaryPatternCanvas = this.createPatternCanvas(owner);
return ctx.createPattern(temporaryPatternCanvas, "repeat");
}
};
return TilingPattern;
}();
exports.TilingPattern = TilingPattern;
/***/ }),
/* 10 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.GlobalWorkerOptions = void 0;
const GlobalWorkerOptions = Object.create(null);
exports.GlobalWorkerOptions = GlobalWorkerOptions;
GlobalWorkerOptions.workerPort = GlobalWorkerOptions.workerPort === undefined ? null : GlobalWorkerOptions.workerPort;
GlobalWorkerOptions.workerSrc = GlobalWorkerOptions.workerSrc === undefined ? "" : GlobalWorkerOptions.workerSrc;
/***/ }),
/* 11 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.MessageHandler = void 0;
var _util = __w_pdfjs_require__(1);
const CallbackKind = {
UNKNOWN: 0,
DATA: 1,
ERROR: 2
};
const StreamKind = {
UNKNOWN: 0,
CANCEL: 1,
CANCEL_COMPLETE: 2,
CLOSE: 3,
ENQUEUE: 4,
ERROR: 5,
PULL: 6,
PULL_COMPLETE: 7,
START_COMPLETE: 8
};
function wrapReason(reason) {
if (typeof reason !== "object" || reason === null) {
return reason;
}
switch (reason.name) {
case "AbortException":
return new _util.AbortException(reason.message);
case "MissingPDFException":
return new _util.MissingPDFException(reason.message);
case "UnexpectedResponseException":
return new _util.UnexpectedResponseException(reason.message, reason.status);
case "UnknownErrorException":
return new _util.UnknownErrorException(reason.message, reason.details);
default:
return new _util.UnknownErrorException(reason.message, reason.toString());
}
}
class MessageHandler {
constructor(sourceName, targetName, comObj) {
this.sourceName = sourceName;
this.targetName = targetName;
this.comObj = comObj;
this.callbackId = 1;
this.streamId = 1;
this.postMessageTransfers = true;
this.streamSinks = Object.create(null);
this.streamControllers = Object.create(null);
this.callbackCapabilities = Object.create(null);
this.actionHandler = Object.create(null);
this._onComObjOnMessage = event => {
const data = event.data;
if (data.targetName !== this.sourceName) {
return;
}
if (data.stream) {
this._processStreamMessage(data);
return;
}
if (data.callback) {
const callbackId = data.callbackId;
const capability = this.callbackCapabilities[callbackId];
if (!capability) {
throw new Error(`Cannot resolve callback ${callbackId}`);
}
delete this.callbackCapabilities[callbackId];
if (data.callback === CallbackKind.DATA) {
capability.resolve(data.data);
} else if (data.callback === CallbackKind.ERROR) {
capability.reject(wrapReason(data.reason));
} else {
throw new Error("Unexpected callback case");
}
return;
}
const action = this.actionHandler[data.action];
if (!action) {
throw new Error(`Unknown action from worker: ${data.action}`);
}
if (data.callbackId) {
const sourceName = this.sourceName;
const targetName = data.sourceName;
new Promise(function (resolve) {
resolve(action(data.data));
}).then(function (result) {
comObj.postMessage({
sourceName,
targetName,
callback: CallbackKind.DATA,
callbackId: data.callbackId,
data: result
});
}, function (reason) {
comObj.postMessage({
sourceName,
targetName,
callback: CallbackKind.ERROR,
callbackId: data.callbackId,
reason: wrapReason(reason)
});
});
return;
}
if (data.streamId) {
this._createStreamSink(data);
return;
}
action(data.data);
};
comObj.addEventListener("message", this._onComObjOnMessage);
}
on(actionName, handler) {
const ah = this.actionHandler;
if (ah[actionName]) {
throw new Error(`There is already an actionName called "${actionName}"`);
}
ah[actionName] = handler;
}
send(actionName, data, transfers) {
this._postMessage({
sourceName: this.sourceName,
targetName: this.targetName,
action: actionName,
data
}, transfers);
}
sendWithPromise(actionName, data, transfers) {
const callbackId = this.callbackId++;
const capability = (0, _util.createPromiseCapability)();
this.callbackCapabilities[callbackId] = capability;
try {
this._postMessage({
sourceName: this.sourceName,
targetName: this.targetName,
action: actionName,
callbackId,
data
}, transfers);
} catch (ex) {
capability.reject(ex);
}
return capability.promise;
}
sendWithStream(actionName, data, queueingStrategy, transfers) {
const streamId = this.streamId++;
const sourceName = this.sourceName;
const targetName = this.targetName;
const comObj = this.comObj;
return new ReadableStream({
start: controller => {
const startCapability = (0, _util.createPromiseCapability)();
this.streamControllers[streamId] = {
controller,
startCall: startCapability,
pullCall: null,
cancelCall: null,
isClosed: false
};
this._postMessage({
sourceName,
targetName,
action: actionName,
streamId,
data,
desiredSize: controller.desiredSize
}, transfers);
return startCapability.promise;
},
pull: controller => {
const pullCapability = (0, _util.createPromiseCapability)();
this.streamControllers[streamId].pullCall = pullCapability;
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.PULL,
streamId,
desiredSize: controller.desiredSize
});
return pullCapability.promise;
},
cancel: reason => {
(0, _util.assert)(reason instanceof Error, "cancel must have a valid reason");
const cancelCapability = (0, _util.createPromiseCapability)();
this.streamControllers[streamId].cancelCall = cancelCapability;
this.streamControllers[streamId].isClosed = true;
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.CANCEL,
streamId,
reason: wrapReason(reason)
});
return cancelCapability.promise;
}
}, queueingStrategy);
}
_createStreamSink(data) {
const self = this;
const action = this.actionHandler[data.action];
const streamId = data.streamId;
const sourceName = this.sourceName;
const targetName = data.sourceName;
const comObj = this.comObj;
const streamSink = {
enqueue(chunk, size = 1, transfers) {
if (this.isCancelled) {
return;
}
const lastDesiredSize = this.desiredSize;
this.desiredSize -= size;
if (lastDesiredSize > 0 && this.desiredSize <= 0) {
this.sinkCapability = (0, _util.createPromiseCapability)();
this.ready = this.sinkCapability.promise;
}
self._postMessage({
sourceName,
targetName,
stream: StreamKind.ENQUEUE,
streamId,
chunk
}, transfers);
},
close() {
if (this.isCancelled) {
return;
}
this.isCancelled = true;
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.CLOSE,
streamId
});
delete self.streamSinks[streamId];
},
error(reason) {
(0, _util.assert)(reason instanceof Error, "error must have a valid reason");
if (this.isCancelled) {
return;
}
this.isCancelled = true;
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.ERROR,
streamId,
reason: wrapReason(reason)
});
},
sinkCapability: (0, _util.createPromiseCapability)(),
onPull: null,
onCancel: null,
isCancelled: false,
desiredSize: data.desiredSize,
ready: null
};
streamSink.sinkCapability.resolve();
streamSink.ready = streamSink.sinkCapability.promise;
this.streamSinks[streamId] = streamSink;
new Promise(function (resolve) {
resolve(action(data.data, streamSink));
}).then(function () {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.START_COMPLETE,
streamId,
success: true
});
}, function (reason) {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.START_COMPLETE,
streamId,
reason: wrapReason(reason)
});
});
}
_processStreamMessage(data) {
const streamId = data.streamId;
const sourceName = this.sourceName;
const targetName = data.sourceName;
const comObj = this.comObj;
switch (data.stream) {
case StreamKind.START_COMPLETE:
if (data.success) {
this.streamControllers[streamId].startCall.resolve();
} else {
this.streamControllers[streamId].startCall.reject(wrapReason(data.reason));
}
break;
case StreamKind.PULL_COMPLETE:
if (data.success) {
this.streamControllers[streamId].pullCall.resolve();
} else {
this.streamControllers[streamId].pullCall.reject(wrapReason(data.reason));
}
break;
case StreamKind.PULL:
if (!this.streamSinks[streamId]) {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.PULL_COMPLETE,
streamId,
success: true
});
break;
}
if (this.streamSinks[streamId].desiredSize <= 0 && data.desiredSize > 0) {
this.streamSinks[streamId].sinkCapability.resolve();
}
this.streamSinks[streamId].desiredSize = data.desiredSize;
const {
onPull
} = this.streamSinks[data.streamId];
new Promise(function (resolve) {
resolve(onPull && onPull());
}).then(function () {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.PULL_COMPLETE,
streamId,
success: true
});
}, function (reason) {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.PULL_COMPLETE,
streamId,
reason: wrapReason(reason)
});
});
break;
case StreamKind.ENQUEUE:
(0, _util.assert)(this.streamControllers[streamId], "enqueue should have stream controller");
if (this.streamControllers[streamId].isClosed) {
break;
}
this.streamControllers[streamId].controller.enqueue(data.chunk);
break;
case StreamKind.CLOSE:
(0, _util.assert)(this.streamControllers[streamId], "close should have stream controller");
if (this.streamControllers[streamId].isClosed) {
break;
}
this.streamControllers[streamId].isClosed = true;
this.streamControllers[streamId].controller.close();
this._deleteStreamController(streamId);
break;
case StreamKind.ERROR:
(0, _util.assert)(this.streamControllers[streamId], "error should have stream controller");
this.streamControllers[streamId].controller.error(wrapReason(data.reason));
this._deleteStreamController(streamId);
break;
case StreamKind.CANCEL_COMPLETE:
if (data.success) {
this.streamControllers[streamId].cancelCall.resolve();
} else {
this.streamControllers[streamId].cancelCall.reject(wrapReason(data.reason));
}
this._deleteStreamController(streamId);
break;
case StreamKind.CANCEL:
if (!this.streamSinks[streamId]) {
break;
}
const {
onCancel
} = this.streamSinks[data.streamId];
new Promise(function (resolve) {
resolve(onCancel && onCancel(wrapReason(data.reason)));
}).then(function () {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.CANCEL_COMPLETE,
streamId,
success: true
});
}, function (reason) {
comObj.postMessage({
sourceName,
targetName,
stream: StreamKind.CANCEL_COMPLETE,
streamId,
reason: wrapReason(reason)
});
});
this.streamSinks[streamId].sinkCapability.reject(wrapReason(data.reason));
this.streamSinks[streamId].isCancelled = true;
delete this.streamSinks[streamId];
break;
default:
throw new Error("Unexpected stream case");
}
}
async _deleteStreamController(streamId) {
await Promise.allSettled([this.streamControllers[streamId].startCall, this.streamControllers[streamId].pullCall, this.streamControllers[streamId].cancelCall].map(function (capability) {
return capability && capability.promise;
}));
delete this.streamControllers[streamId];
}
_postMessage(message, transfers) {
if (transfers && this.postMessageTransfers) {
this.comObj.postMessage(message, transfers);
} else {
this.comObj.postMessage(message);
}
}
destroy() {
this.comObj.removeEventListener("message", this._onComObjOnMessage);
}
}
exports.MessageHandler = MessageHandler;
/***/ }),
/* 12 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.Metadata = void 0;
var _util = __w_pdfjs_require__(1);
var _xml_parser = __w_pdfjs_require__(13);
class Metadata {
constructor(data) {
(0, _util.assert)(typeof data === "string", "Metadata: input is not a string");
data = this._repair(data);
const parser = new _xml_parser.SimpleXMLParser();
const xmlDocument = parser.parseFromString(data);
this._metadataMap = new Map();
if (xmlDocument) {
this._parse(xmlDocument);
}
}
_repair(data) {
return data.replace(/^[^<]+/, "").replace(/>\\376\\377([^<]+)/g, function (all, codes) {
const bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, function (code, d1, d2, d3) {
return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
}).replace(/&(amp|apos|gt|lt|quot);/g, function (str, name) {
switch (name) {
case "amp":
return "&";
case "apos":
return "'";
case "gt":
return ">";
case "lt":
return "<";
case "quot":
return '"';
}
throw new Error(`_repair: ${name} isn't defined.`);
});
let chars = "";
for (let i = 0, ii = bytes.length; i < ii; i += 2) {
const code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);
if (code >= 32 && code < 127 && code !== 60 && code !== 62 && code !== 38) {
chars += String.fromCharCode(code);
} else {
chars += "&#x" + (0x10000 + code).toString(16).substring(1) + ";";
}
}
return ">" + chars;
});
}
_parse(xmlDocument) {
let rdf = xmlDocument.documentElement;
if (rdf.nodeName.toLowerCase() !== "rdf:rdf") {
rdf = rdf.firstChild;
while (rdf && rdf.nodeName.toLowerCase() !== "rdf:rdf") {
rdf = rdf.nextSibling;
}
}
const nodeName = rdf ? rdf.nodeName.toLowerCase() : null;
if (!rdf || nodeName !== "rdf:rdf" || !rdf.hasChildNodes()) {
return;
}
const children = rdf.childNodes;
for (let i = 0, ii = children.length; i < ii; i++) {
const desc = children[i];
if (desc.nodeName.toLowerCase() !== "rdf:description") {
continue;
}
for (let j = 0, jj = desc.childNodes.length; j < jj; j++) {
if (desc.childNodes[j].nodeName.toLowerCase() !== "#text") {
const entry = desc.childNodes[j];
const name = entry.nodeName.toLowerCase();
this._metadataMap.set(name, entry.textContent.trim());
}
}
}
}
get(name) {
return this._metadataMap.has(name) ? this._metadataMap.get(name) : null;
}
getAll() {
const obj = Object.create(null);
for (const [key, value] of this._metadataMap) {
obj[key] = value;
}
return obj;
}
has(name) {
return this._metadataMap.has(name);
}
}
exports.Metadata = Metadata;
/***/ }),
/* 13 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.SimpleXMLParser = void 0;
const XMLParserErrorCode = {
NoError: 0,
EndOfDocument: -1,
UnterminatedCdat: -2,
UnterminatedXmlDeclaration: -3,
UnterminatedDoctypeDeclaration: -4,
UnterminatedComment: -5,
MalformedElement: -6,
OutOfMemory: -7,
UnterminatedAttributeValue: -8,
UnterminatedElement: -9,
ElementNeverBegun: -10
};
function isWhitespace(s, index) {
const ch = s[index];
return ch === " " || ch === "\n" || ch === "\r" || ch === "\t";
}
function isWhitespaceString(s) {
for (let i = 0, ii = s.length; i < ii; i++) {
if (!isWhitespace(s, i)) {
return false;
}
}
return true;
}
class XMLParserBase {
_resolveEntities(s) {
return s.replace(/&([^;]+);/g, (all, entity) => {
if (entity.substring(0, 2) === "#x") {
return String.fromCharCode(parseInt(entity.substring(2), 16));
} else if (entity.substring(0, 1) === "#") {
return String.fromCharCode(parseInt(entity.substring(1), 10));
}
switch (entity) {
case "lt":
return "<";
case "gt":
return ">";
case "amp":
return "&";
case "quot":
return '"';
}
return this.onResolveEntity(entity);
});
}
_parseContent(s, start) {
const attributes = [];
let pos = start;
function skipWs() {
while (pos < s.length && isWhitespace(s, pos)) {
++pos;
}
}
while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== ">" && s[pos] !== "/") {
++pos;
}
const name = s.substring(start, pos);
skipWs();
while (pos < s.length && s[pos] !== ">" && s[pos] !== "/" && s[pos] !== "?") {
skipWs();
let attrName = "",
attrValue = "";
while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== "=") {
attrName += s[pos];
++pos;
}
skipWs();
if (s[pos] !== "=") {
return null;
}
++pos;
skipWs();
const attrEndChar = s[pos];
if (attrEndChar !== '"' && attrEndChar !== "'") {
return null;
}
const attrEndIndex = s.indexOf(attrEndChar, ++pos);
if (attrEndIndex < 0) {
return null;
}
attrValue = s.substring(pos, attrEndIndex);
attributes.push({
name: attrName,
value: this._resolveEntities(attrValue)
});
pos = attrEndIndex + 1;
skipWs();
}
return {
name,
attributes,
parsed: pos - start
};
}
_parseProcessingInstruction(s, start) {
let pos = start;
function skipWs() {
while (pos < s.length && isWhitespace(s, pos)) {
++pos;
}
}
while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== ">" && s[pos] !== "/") {
++pos;
}
const name = s.substring(start, pos);
skipWs();
const attrStart = pos;
while (pos < s.length && (s[pos] !== "?" || s[pos + 1] !== ">")) {
++pos;
}
const value = s.substring(attrStart, pos);
return {
name,
value,
parsed: pos - start
};
}
parseXml(s) {
let i = 0;
while (i < s.length) {
const ch = s[i];
let j = i;
if (ch === "<") {
++j;
const ch2 = s[j];
let q;
switch (ch2) {
case "/":
++j;
q = s.indexOf(">", j);
if (q < 0) {
this.onError(XMLParserErrorCode.UnterminatedElement);
return;
}
this.onEndElement(s.substring(j, q));
j = q + 1;
break;
case "?":
++j;
const pi = this._parseProcessingInstruction(s, j);
if (s.substring(j + pi.parsed, j + pi.parsed + 2) !== "?>") {
this.onError(XMLParserErrorCode.UnterminatedXmlDeclaration);
return;
}
this.onPi(pi.name, pi.value);
j += pi.parsed + 2;
break;
case "!":
if (s.substring(j + 1, j + 3) === "--") {
q = s.indexOf("-->", j + 3);
if (q < 0) {
this.onError(XMLParserErrorCode.UnterminatedComment);
return;
}
this.onComment(s.substring(j + 3, q));
j = q + 3;
} else if (s.substring(j + 1, j + 8) === "[CDATA[") {
q = s.indexOf("]]>", j + 8);
if (q < 0) {
this.onError(XMLParserErrorCode.UnterminatedCdat);
return;
}
this.onCdata(s.substring(j + 8, q));
j = q + 3;
} else if (s.substring(j + 1, j + 8) === "DOCTYPE") {
const q2 = s.indexOf("[", j + 8);
let complexDoctype = false;
q = s.indexOf(">", j + 8);
if (q < 0) {
this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
return;
}
if (q2 > 0 && q > q2) {
q = s.indexOf("]>", j + 8);
if (q < 0) {
this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
return;
}
complexDoctype = true;
}
const doctypeContent = s.substring(j + 8, q + (complexDoctype ? 1 : 0));
this.onDoctype(doctypeContent);
j = q + (complexDoctype ? 2 : 1);
} else {
this.onError(XMLParserErrorCode.MalformedElement);
return;
}
break;
default:
const content = this._parseContent(s, j);
if (content === null) {
this.onError(XMLParserErrorCode.MalformedElement);
return;
}
let isClosed = false;
if (s.substring(j + content.parsed, j + content.parsed + 2) === "/>") {
isClosed = true;
} else if (s.substring(j + content.parsed, j + content.parsed + 1) !== ">") {
this.onError(XMLParserErrorCode.UnterminatedElement);
return;
}
this.onBeginElement(content.name, content.attributes, isClosed);
j += content.parsed + (isClosed ? 2 : 1);
break;
}
} else {
while (j < s.length && s[j] !== "<") {
j++;
}
const text = s.substring(i, j);
this.onText(this._resolveEntities(text));
}
i = j;
}
}
onResolveEntity(name) {
return `&${name};`;
}
onPi(name, value) {}
onComment(text) {}
onCdata(text) {}
onDoctype(doctypeContent) {}
onText(text) {}
onBeginElement(name, attributes, isEmpty) {}
onEndElement(name) {}
onError(code) {}
}
class SimpleDOMNode {
constructor(nodeName, nodeValue) {
this.nodeName = nodeName;
this.nodeValue = nodeValue;
Object.defineProperty(this, "parentNode", {
value: null,
writable: true
});
}
get firstChild() {
return this.childNodes && this.childNodes[0];
}
get nextSibling() {
const childNodes = this.parentNode.childNodes;
if (!childNodes) {
return undefined;
}
const index = childNodes.indexOf(this);
if (index === -1) {
return undefined;
}
return childNodes[index + 1];
}
get textContent() {
if (!this.childNodes) {
return this.nodeValue || "";
}
return this.childNodes.map(function (child) {
return child.textContent;
}).join("");
}
hasChildNodes() {
return this.childNodes && this.childNodes.length > 0;
}
}
class SimpleXMLParser extends XMLParserBase {
constructor() {
super();
this._currentFragment = null;
this._stack = null;
this._errorCode = XMLParserErrorCode.NoError;
}
parseFromString(data) {
this._currentFragment = [];
this._stack = [];
this._errorCode = XMLParserErrorCode.NoError;
this.parseXml(data);
if (this._errorCode !== XMLParserErrorCode.NoError) {
return undefined;
}
const [documentElement] = this._currentFragment;
if (!documentElement) {
return undefined;
}
return {
documentElement
};
}
onResolveEntity(name) {
switch (name) {
case "apos":
return "'";
}
return super.onResolveEntity(name);
}
onText(text) {
if (isWhitespaceString(text)) {
return;
}
const node = new SimpleDOMNode("#text", text);
this._currentFragment.push(node);
}
onCdata(text) {
const node = new SimpleDOMNode("#text", text);
this._currentFragment.push(node);
}
onBeginElement(name, attributes, isEmpty) {
const node = new SimpleDOMNode(name);
node.childNodes = [];
this._currentFragment.push(node);
if (isEmpty) {
return;
}
this._stack.push(this._currentFragment);
this._currentFragment = node.childNodes;
}
onEndElement(name) {
this._currentFragment = this._stack.pop() || [];
const lastElement = this._currentFragment[this._currentFragment.length - 1];
if (!lastElement) {
return;
}
for (let i = 0, ii = lastElement.childNodes.length; i < ii; i++) {
lastElement.childNodes[i].parentNode = lastElement;
}
}
onError(code) {
this._errorCode = code;
}
}
exports.SimpleXMLParser = SimpleXMLParser;
/***/ }),
/* 14 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PDFDataTransportStream = void 0;
var _util = __w_pdfjs_require__(1);
class PDFDataTransportStream {
constructor(params, pdfDataRangeTransport) {
(0, _util.assert)(pdfDataRangeTransport);
this._queuedChunks = [];
this._progressiveDone = params.progressiveDone || false;
const initialData = params.initialData;
if (initialData && initialData.length > 0) {
const buffer = new Uint8Array(initialData).buffer;
this._queuedChunks.push(buffer);
}
this._pdfDataRangeTransport = pdfDataRangeTransport;
this._isStreamingSupported = !params.disableStream;
this._isRangeSupported = !params.disableRange;
this._contentLength = params.length;
this._fullRequestReader = null;
this._rangeReaders = [];
this._pdfDataRangeTransport.addRangeListener((begin, chunk) => {
this._onReceiveData({
begin,
chunk
});
});
this._pdfDataRangeTransport.addProgressListener((loaded, total) => {
this._onProgress({
loaded,
total
});
});
this._pdfDataRangeTransport.addProgressiveReadListener(chunk => {
this._onReceiveData({
chunk
});
});
this._pdfDataRangeTransport.addProgressiveDoneListener(() => {
this._onProgressiveDone();
});
this._pdfDataRangeTransport.transportReady();
}
_onReceiveData(args) {
const buffer = new Uint8Array(args.chunk).buffer;
if (args.begin === undefined) {
if (this._fullRequestReader) {
this._fullRequestReader._enqueue(buffer);
} else {
this._queuedChunks.push(buffer);
}
} else {
const found = this._rangeReaders.some(function (rangeReader) {
if (rangeReader._begin !== args.begin) {
return false;
}
rangeReader._enqueue(buffer);
return true;
});
(0, _util.assert)(found);
}
}
get _progressiveDataLength() {
return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
}
_onProgress(evt) {
if (evt.total === undefined) {
const firstReader = this._rangeReaders[0];
if (firstReader && firstReader.onProgress) {
firstReader.onProgress({
loaded: evt.loaded
});
}
} else {
const fullReader = this._fullRequestReader;
if (fullReader && fullReader.onProgress) {
fullReader.onProgress({
loaded: evt.loaded,
total: evt.total
});
}
}
}
_onProgressiveDone() {
if (this._fullRequestReader) {
this._fullRequestReader.progressiveDone();
}
this._progressiveDone = true;
}
_removeRangeReader(reader) {
const i = this._rangeReaders.indexOf(reader);
if (i >= 0) {
this._rangeReaders.splice(i, 1);
}
}
getFullReader() {
(0, _util.assert)(!this._fullRequestReader);
const queuedChunks = this._queuedChunks;
this._queuedChunks = null;
return new PDFDataTransportStreamReader(this, queuedChunks, this._progressiveDone);
}
getRangeReader(begin, end) {
if (end <= this._progressiveDataLength) {
return null;
}
const reader = new PDFDataTransportStreamRangeReader(this, begin, end);
this._pdfDataRangeTransport.requestDataRange(begin, end);
this._rangeReaders.push(reader);
return reader;
}
cancelAllRequests(reason) {
if (this._fullRequestReader) {
this._fullRequestReader.cancel(reason);
}
const readers = this._rangeReaders.slice(0);
readers.forEach(function (rangeReader) {
rangeReader.cancel(reason);
});
this._pdfDataRangeTransport.abort();
}
}
exports.PDFDataTransportStream = PDFDataTransportStream;
class PDFDataTransportStreamReader {
constructor(stream, queuedChunks, progressiveDone = false) {
this._stream = stream;
this._done = progressiveDone || false;
this._filename = null;
this._queuedChunks = queuedChunks || [];
this._loaded = 0;
for (const chunk of this._queuedChunks) {
this._loaded += chunk.byteLength;
}
this._requests = [];
this._headersReady = Promise.resolve();
stream._fullRequestReader = this;
this.onProgress = null;
}
_enqueue(chunk) {
if (this._done) {
return;
}
if (this._requests.length > 0) {
const requestCapability = this._requests.shift();
requestCapability.resolve({
value: chunk,
done: false
});
} else {
this._queuedChunks.push(chunk);
}
this._loaded += chunk.byteLength;
}
get headersReady() {
return this._headersReady;
}
get filename() {
return this._filename;
}
get isRangeSupported() {
return this._stream._isRangeSupported;
}
get isStreamingSupported() {
return this._stream._isStreamingSupported;
}
get contentLength() {
return this._stream._contentLength;
}
async read() {
if (this._queuedChunks.length > 0) {
const chunk = this._queuedChunks.shift();
return {
value: chunk,
done: false
};
}
if (this._done) {
return {
value: undefined,
done: true
};
}
const requestCapability = (0, _util.createPromiseCapability)();
this._requests.push(requestCapability);
return requestCapability.promise;
}
cancel(reason) {
this._done = true;
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
}
progressiveDone() {
if (this._done) {
return;
}
this._done = true;
}
}
class PDFDataTransportStreamRangeReader {
constructor(stream, begin, end) {
this._stream = stream;
this._begin = begin;
this._end = end;
this._queuedChunk = null;
this._requests = [];
this._done = false;
this.onProgress = null;
}
_enqueue(chunk) {
if (this._done) {
return;
}
if (this._requests.length === 0) {
this._queuedChunk = chunk;
} else {
const requestsCapability = this._requests.shift();
requestsCapability.resolve({
value: chunk,
done: false
});
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
}
this._done = true;
this._stream._removeRangeReader(this);
}
get isStreamingSupported() {
return false;
}
async read() {
if (this._queuedChunk) {
const chunk = this._queuedChunk;
this._queuedChunk = null;
return {
value: chunk,
done: false
};
}
if (this._done) {
return {
value: undefined,
done: true
};
}
const requestCapability = (0, _util.createPromiseCapability)();
this._requests.push(requestCapability);
return requestCapability.promise;
}
cancel(reason) {
this._done = true;
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
this._stream._removeRangeReader(this);
}
}
/***/ }),
/* 15 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.WebGLContext = void 0;
var _util = __w_pdfjs_require__(1);
class WebGLContext {
constructor({
enable = false
}) {
this._enabled = enable === true;
}
get isEnabled() {
let enabled = this._enabled;
if (enabled) {
enabled = WebGLUtils.tryInitGL();
}
return (0, _util.shadow)(this, "isEnabled", enabled);
}
composeSMask({
layer,
mask,
properties
}) {
return WebGLUtils.composeSMask(layer, mask, properties);
}
drawFigures({
width,
height,
backgroundColor,
figures,
context
}) {
return WebGLUtils.drawFigures(width, height, backgroundColor, figures, context);
}
clear() {
WebGLUtils.cleanup();
}
}
exports.WebGLContext = WebGLContext;
var WebGLUtils = function WebGLUtilsClosure() {
function loadShader(gl, code, shaderType) {
var shader = gl.createShader(shaderType);
gl.shaderSource(shader, code);
gl.compileShader(shader);
var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
if (!compiled) {
var errorMsg = gl.getShaderInfoLog(shader);
throw new Error("Error during shader compilation: " + errorMsg);
}
return shader;
}
function createVertexShader(gl, code) {
return loadShader(gl, code, gl.VERTEX_SHADER);
}
function createFragmentShader(gl, code) {
return loadShader(gl, code, gl.FRAGMENT_SHADER);
}
function createProgram(gl, shaders) {
var program = gl.createProgram();
for (var i = 0, ii = shaders.length; i < ii; ++i) {
gl.attachShader(program, shaders[i]);
}
gl.linkProgram(program);
var linked = gl.getProgramParameter(program, gl.LINK_STATUS);
if (!linked) {
var errorMsg = gl.getProgramInfoLog(program);
throw new Error("Error during program linking: " + errorMsg);
}
return program;
}
function createTexture(gl, image, textureId) {
gl.activeTexture(textureId);
var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
return texture;
}
var currentGL, currentCanvas;
function generateGL() {
if (currentGL) {
return;
}
currentCanvas = document.createElement("canvas");
currentGL = currentCanvas.getContext("webgl", {
premultipliedalpha: false
});
}
var smaskVertexShaderCode = "\
attribute vec2 a_position; \
attribute vec2 a_texCoord; \
\
uniform vec2 u_resolution; \
\
varying vec2 v_texCoord; \
\
void main() { \
vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \
gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
\
v_texCoord = a_texCoord; \
} ";
var smaskFragmentShaderCode = "\
precision mediump float; \
\
uniform vec4 u_backdrop; \
uniform int u_subtype; \
uniform sampler2D u_image; \
uniform sampler2D u_mask; \
\
varying vec2 v_texCoord; \
\
void main() { \
vec4 imageColor = texture2D(u_image, v_texCoord); \
vec4 maskColor = texture2D(u_mask, v_texCoord); \
if (u_backdrop.a > 0.0) { \
maskColor.rgb = maskColor.rgb * maskColor.a + \
u_backdrop.rgb * (1.0 - maskColor.a); \
} \
float lum; \
if (u_subtype == 0) { \
lum = maskColor.a; \
} else { \
lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \
maskColor.b * 0.11; \
} \
imageColor.a *= lum; \
imageColor.rgb *= imageColor.a; \
gl_FragColor = imageColor; \
} ";
var smaskCache = null;
function initSmaskGL() {
var canvas, gl;
generateGL();
canvas = currentCanvas;
currentCanvas = null;
gl = currentGL;
currentGL = null;
var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
var program = createProgram(gl, [vertexShader, fragmentShader]);
gl.useProgram(program);
var cache = {};
cache.gl = gl;
cache.canvas = canvas;
cache.resolutionLocation = gl.getUniformLocation(program, "u_resolution");
cache.positionLocation = gl.getAttribLocation(program, "a_position");
cache.backdropLocation = gl.getUniformLocation(program, "u_backdrop");
cache.subtypeLocation = gl.getUniformLocation(program, "u_subtype");
var texCoordLocation = gl.getAttribLocation(program, "a_texCoord");
var texLayerLocation = gl.getUniformLocation(program, "u_image");
var texMaskLocation = gl.getUniformLocation(program, "u_mask");
var texCoordBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]), gl.STATIC_DRAW);
gl.enableVertexAttribArray(texCoordLocation);
gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
gl.uniform1i(texLayerLocation, 0);
gl.uniform1i(texMaskLocation, 1);
smaskCache = cache;
}
function composeSMask(layer, mask, properties) {
var width = layer.width,
height = layer.height;
if (!smaskCache) {
initSmaskGL();
}
var cache = smaskCache,
canvas = cache.canvas,
gl = cache.gl;
canvas.width = width;
canvas.height = height;
gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
gl.uniform2f(cache.resolutionLocation, width, height);
if (properties.backdrop) {
gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], properties.backdrop[1], properties.backdrop[2], 1);
} else {
gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
}
gl.uniform1i(cache.subtypeLocation, properties.subtype === "Luminosity" ? 1 : 0);
var texture = createTexture(gl, layer, gl.TEXTURE0);
var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, width, 0, 0, height, 0, height, width, 0, width, height]), gl.STATIC_DRAW);
gl.enableVertexAttribArray(cache.positionLocation);
gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0, 0, 0, 0);
gl.enable(gl.BLEND);
gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 6);
gl.flush();
gl.deleteTexture(texture);
gl.deleteTexture(maskTexture);
gl.deleteBuffer(buffer);
return canvas;
}
var figuresVertexShaderCode = "\
attribute vec2 a_position; \
attribute vec3 a_color; \
\
uniform vec2 u_resolution; \
uniform vec2 u_scale; \
uniform vec2 u_offset; \
\
varying vec4 v_color; \
\
void main() { \
vec2 position = (a_position + u_offset) * u_scale; \
vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \
gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
\
v_color = vec4(a_color / 255.0, 1.0); \
} ";
var figuresFragmentShaderCode = "\
precision mediump float; \
\
varying vec4 v_color; \
\
void main() { \
gl_FragColor = v_color; \
} ";
var figuresCache = null;
function initFiguresGL() {
var canvas, gl;
generateGL();
canvas = currentCanvas;
currentCanvas = null;
gl = currentGL;
currentGL = null;
var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
var program = createProgram(gl, [vertexShader, fragmentShader]);
gl.useProgram(program);
var cache = {};
cache.gl = gl;
cache.canvas = canvas;
cache.resolutionLocation = gl.getUniformLocation(program, "u_resolution");
cache.scaleLocation = gl.getUniformLocation(program, "u_scale");
cache.offsetLocation = gl.getUniformLocation(program, "u_offset");
cache.positionLocation = gl.getAttribLocation(program, "a_position");
cache.colorLocation = gl.getAttribLocation(program, "a_color");
figuresCache = cache;
}
function drawFigures(width, height, backgroundColor, figures, context) {
if (!figuresCache) {
initFiguresGL();
}
var cache = figuresCache,
canvas = cache.canvas,
gl = cache.gl;
canvas.width = width;
canvas.height = height;
gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
gl.uniform2f(cache.resolutionLocation, width, height);
var count = 0;
var i, ii, rows;
for (i = 0, ii = figures.length; i < ii; i++) {
switch (figures[i].type) {
case "lattice":
rows = figures[i].coords.length / figures[i].verticesPerRow | 0;
count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
break;
case "triangles":
count += figures[i].coords.length;
break;
}
}
var coords = new Float32Array(count * 2);
var colors = new Uint8Array(count * 3);
var coordsMap = context.coords,
colorsMap = context.colors;
var pIndex = 0,
cIndex = 0;
for (i = 0, ii = figures.length; i < ii; i++) {
var figure = figures[i],
ps = figure.coords,
cs = figure.colors;
switch (figure.type) {
case "lattice":
var cols = figure.verticesPerRow;
rows = ps.length / cols | 0;
for (var row = 1; row < rows; row++) {
var offset = row * cols + 1;
for (var col = 1; col < cols; col++, offset++) {
coords[pIndex] = coordsMap[ps[offset - cols - 1]];
coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
coords[pIndex + 2] = coordsMap[ps[offset - cols]];
coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
coords[pIndex + 4] = coordsMap[ps[offset - 1]];
coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
colors[cIndex] = colorsMap[cs[offset - cols - 1]];
colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
colors[cIndex + 3] = colorsMap[cs[offset - cols]];
colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
colors[cIndex + 6] = colorsMap[cs[offset - 1]];
colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
coords[pIndex + 6] = coords[pIndex + 2];
coords[pIndex + 7] = coords[pIndex + 3];
coords[pIndex + 8] = coords[pIndex + 4];
coords[pIndex + 9] = coords[pIndex + 5];
coords[pIndex + 10] = coordsMap[ps[offset]];
coords[pIndex + 11] = coordsMap[ps[offset] + 1];
colors[cIndex + 9] = colors[cIndex + 3];
colors[cIndex + 10] = colors[cIndex + 4];
colors[cIndex + 11] = colors[cIndex + 5];
colors[cIndex + 12] = colors[cIndex + 6];
colors[cIndex + 13] = colors[cIndex + 7];
colors[cIndex + 14] = colors[cIndex + 8];
colors[cIndex + 15] = colorsMap[cs[offset]];
colors[cIndex + 16] = colorsMap[cs[offset] + 1];
colors[cIndex + 17] = colorsMap[cs[offset] + 2];
pIndex += 12;
cIndex += 18;
}
}
break;
case "triangles":
for (var j = 0, jj = ps.length; j < jj; j++) {
coords[pIndex] = coordsMap[ps[j]];
coords[pIndex + 1] = coordsMap[ps[j] + 1];
colors[cIndex] = colorsMap[cs[j]];
colors[cIndex + 1] = colorsMap[cs[j] + 1];
colors[cIndex + 2] = colorsMap[cs[j] + 2];
pIndex += 2;
cIndex += 3;
}
break;
}
}
if (backgroundColor) {
gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, backgroundColor[2] / 255, 1.0);
} else {
gl.clearColor(0, 0, 0, 0);
}
gl.clear(gl.COLOR_BUFFER_BIT);
var coordsBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
gl.enableVertexAttribArray(cache.positionLocation);
gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
var colorsBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
gl.enableVertexAttribArray(cache.colorLocation);
gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, 0, 0);
gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
gl.drawArrays(gl.TRIANGLES, 0, count);
gl.flush();
gl.deleteBuffer(coordsBuffer);
gl.deleteBuffer(colorsBuffer);
return canvas;
}
return {
tryInitGL() {
try {
generateGL();
return !!currentGL;
} catch (ex) {}
return false;
},
composeSMask,
drawFigures,
cleanup() {
if (smaskCache && smaskCache.canvas) {
smaskCache.canvas.width = 0;
smaskCache.canvas.height = 0;
}
if (figuresCache && figuresCache.canvas) {
figuresCache.canvas.width = 0;
figuresCache.canvas.height = 0;
}
smaskCache = null;
figuresCache = null;
}
};
}();
/***/ }),
/* 16 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.renderTextLayer = void 0;
var _util = __w_pdfjs_require__(1);
var renderTextLayer = function renderTextLayerClosure() {
var MAX_TEXT_DIVS_TO_RENDER = 100000;
var NonWhitespaceRegexp = /\S/;
function isAllWhitespace(str) {
return !NonWhitespaceRegexp.test(str);
}
function appendText(task, geom, styles) {
var textDiv = document.createElement("span");
var textDivProperties = {
angle: 0,
canvasWidth: 0,
isWhitespace: false,
originalTransform: null,
paddingBottom: 0,
paddingLeft: 0,
paddingRight: 0,
paddingTop: 0,
scale: 1
};
task._textDivs.push(textDiv);
if (isAllWhitespace(geom.str)) {
textDivProperties.isWhitespace = true;
task._textDivProperties.set(textDiv, textDivProperties);
return;
}
var tx = _util.Util.transform(task._viewport.transform, geom.transform);
var angle = Math.atan2(tx[1], tx[0]);
var style = styles[geom.fontName];
if (style.vertical) {
angle += Math.PI / 2;
}
var fontHeight = Math.sqrt(tx[2] * tx[2] + tx[3] * tx[3]);
var fontAscent = fontHeight;
if (style.ascent) {
fontAscent = style.ascent * fontAscent;
} else if (style.descent) {
fontAscent = (1 + style.descent) * fontAscent;
}
let left, top;
if (angle === 0) {
left = tx[4];
top = tx[5] - fontAscent;
} else {
left = tx[4] + fontAscent * Math.sin(angle);
top = tx[5] - fontAscent * Math.cos(angle);
}
textDiv.style.left = `${left}px`;
textDiv.style.top = `${top}px`;
textDiv.style.fontSize = `${fontHeight}px`;
textDiv.style.fontFamily = style.fontFamily;
textDiv.textContent = geom.str;
if (task._fontInspectorEnabled) {
textDiv.dataset.fontName = geom.fontName;
}
if (angle !== 0) {
textDivProperties.angle = angle * (180 / Math.PI);
}
if (geom.str.length > 1) {
if (style.vertical) {
textDivProperties.canvasWidth = geom.height * task._viewport.scale;
} else {
textDivProperties.canvasWidth = geom.width * task._viewport.scale;
}
}
task._textDivProperties.set(textDiv, textDivProperties);
if (task._textContentStream) {
task._layoutText(textDiv);
}
if (task._enhanceTextSelection) {
var angleCos = 1,
angleSin = 0;
if (angle !== 0) {
angleCos = Math.cos(angle);
angleSin = Math.sin(angle);
}
var divWidth = (style.vertical ? geom.height : geom.width) * task._viewport.scale;
var divHeight = fontHeight;
var m, b;
if (angle !== 0) {
m = [angleCos, angleSin, -angleSin, angleCos, left, top];
b = _util.Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);
} else {
b = [left, top, left + divWidth, top + divHeight];
}
task._bounds.push({
left: b[0],
top: b[1],
right: b[2],
bottom: b[3],
div: textDiv,
size: [divWidth, divHeight],
m
});
}
}
function render(task) {
if (task._canceled) {
return;
}
var textDivs = task._textDivs;
var capability = task._capability;
var textDivsLength = textDivs.length;
if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {
task._renderingDone = true;
capability.resolve();
return;
}
if (!task._textContentStream) {
for (var i = 0; i < textDivsLength; i++) {
task._layoutText(textDivs[i]);
}
}
task._renderingDone = true;
capability.resolve();
}
function expand(task) {
var bounds = task._bounds;
var viewport = task._viewport;
var expanded = expandBounds(viewport.width, viewport.height, bounds);
for (var i = 0; i < expanded.length; i++) {
var div = bounds[i].div;
var divProperties = task._textDivProperties.get(div);
if (divProperties.angle === 0) {
divProperties.paddingLeft = bounds[i].left - expanded[i].left;
divProperties.paddingTop = bounds[i].top - expanded[i].top;
divProperties.paddingRight = expanded[i].right - bounds[i].right;
divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;
task._textDivProperties.set(div, divProperties);
continue;
}
var e = expanded[i],
b = bounds[i];
var m = b.m,
c = m[0],
s = m[1];
var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];
var ts = new Float64Array(64);
points.forEach(function (p, i) {
var t = _util.Util.applyTransform(p, m);
ts[i + 0] = c && (e.left - t[0]) / c;
ts[i + 4] = s && (e.top - t[1]) / s;
ts[i + 8] = c && (e.right - t[0]) / c;
ts[i + 12] = s && (e.bottom - t[1]) / s;
ts[i + 16] = s && (e.left - t[0]) / -s;
ts[i + 20] = c && (e.top - t[1]) / c;
ts[i + 24] = s && (e.right - t[0]) / -s;
ts[i + 28] = c && (e.bottom - t[1]) / c;
ts[i + 32] = c && (e.left - t[0]) / -c;
ts[i + 36] = s && (e.top - t[1]) / -s;
ts[i + 40] = c && (e.right - t[0]) / -c;
ts[i + 44] = s && (e.bottom - t[1]) / -s;
ts[i + 48] = s && (e.left - t[0]) / s;
ts[i + 52] = c && (e.top - t[1]) / -c;
ts[i + 56] = s && (e.right - t[0]) / s;
ts[i + 60] = c && (e.bottom - t[1]) / -c;
});
var findPositiveMin = function (ts, offset, count) {
var result = 0;
for (var i = 0; i < count; i++) {
var t = ts[offset++];
if (t > 0) {
result = result ? Math.min(t, result) : t;
}
}
return result;
};
var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));
divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;
divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;
divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;
divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;
task._textDivProperties.set(div, divProperties);
}
}
function expandBounds(width, height, boxes) {
var bounds = boxes.map(function (box, i) {
return {
x1: box.left,
y1: box.top,
x2: box.right,
y2: box.bottom,
index: i,
x1New: undefined,
x2New: undefined
};
});
expandBoundsLTR(width, bounds);
var expanded = new Array(boxes.length);
bounds.forEach(function (b) {
var i = b.index;
expanded[i] = {
left: b.x1New,
top: 0,
right: b.x2New,
bottom: 0
};
});
boxes.map(function (box, i) {
var e = expanded[i],
b = bounds[i];
b.x1 = box.top;
b.y1 = width - e.right;
b.x2 = box.bottom;
b.y2 = width - e.left;
b.index = i;
b.x1New = undefined;
b.x2New = undefined;
});
expandBoundsLTR(height, bounds);
bounds.forEach(function (b) {
var i = b.index;
expanded[i].top = b.x1New;
expanded[i].bottom = b.x2New;
});
return expanded;
}
function expandBoundsLTR(width, bounds) {
bounds.sort(function (a, b) {
return a.x1 - b.x1 || a.index - b.index;
});
var fakeBoundary = {
x1: -Infinity,
y1: -Infinity,
x2: 0,
y2: Infinity,
index: -1,
x1New: 0,
x2New: 0
};
var horizon = [{
start: -Infinity,
end: Infinity,
boundary: fakeBoundary
}];
bounds.forEach(function (boundary) {
var i = 0;
while (i < horizon.length && horizon[i].end <= boundary.y1) {
i++;
}
var j = horizon.length - 1;
while (j >= 0 && horizon[j].start >= boundary.y2) {
j--;
}
var horizonPart, affectedBoundary;
var q,
k,
maxXNew = -Infinity;
for (q = i; q <= j; q++) {
horizonPart = horizon[q];
affectedBoundary = horizonPart.boundary;
var xNew;
if (affectedBoundary.x2 > boundary.x1) {
xNew = affectedBoundary.index > boundary.index ? affectedBoundary.x1New : boundary.x1;
} else if (affectedBoundary.x2New === undefined) {
xNew = (affectedBoundary.x2 + boundary.x1) / 2;
} else {
xNew = affectedBoundary.x2New;
}
if (xNew > maxXNew) {
maxXNew = xNew;
}
}
boundary.x1New = maxXNew;
for (q = i; q <= j; q++) {
horizonPart = horizon[q];
affectedBoundary = horizonPart.boundary;
if (affectedBoundary.x2New === undefined) {
if (affectedBoundary.x2 > boundary.x1) {
if (affectedBoundary.index > boundary.index) {
affectedBoundary.x2New = affectedBoundary.x2;
}
} else {
affectedBoundary.x2New = maxXNew;
}
} else if (affectedBoundary.x2New > maxXNew) {
affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);
}
}
var changedHorizon = [],
lastBoundary = null;
for (q = i; q <= j; q++) {
horizonPart = horizon[q];
affectedBoundary = horizonPart.boundary;
var useBoundary = affectedBoundary.x2 > boundary.x2 ? affectedBoundary : boundary;
if (lastBoundary === useBoundary) {
changedHorizon[changedHorizon.length - 1].end = horizonPart.end;
} else {
changedHorizon.push({
start: horizonPart.start,
end: horizonPart.end,
boundary: useBoundary
});
lastBoundary = useBoundary;
}
}
if (horizon[i].start < boundary.y1) {
changedHorizon[0].start = boundary.y1;
changedHorizon.unshift({
start: horizon[i].start,
end: boundary.y1,
boundary: horizon[i].boundary
});
}
if (boundary.y2 < horizon[j].end) {
changedHorizon[changedHorizon.length - 1].end = boundary.y2;
changedHorizon.push({
start: boundary.y2,
end: horizon[j].end,
boundary: horizon[j].boundary
});
}
for (q = i; q <= j; q++) {
horizonPart = horizon[q];
affectedBoundary = horizonPart.boundary;
if (affectedBoundary.x2New !== undefined) {
continue;
}
var used = false;
for (k = i - 1; !used && k >= 0 && horizon[k].start >= affectedBoundary.y1; k--) {
used = horizon[k].boundary === affectedBoundary;
}
for (k = j + 1; !used && k < horizon.length && horizon[k].end <= affectedBoundary.y2; k++) {
used = horizon[k].boundary === affectedBoundary;
}
for (k = 0; !used && k < changedHorizon.length; k++) {
used = changedHorizon[k].boundary === affectedBoundary;
}
if (!used) {
affectedBoundary.x2New = maxXNew;
}
}
Array.prototype.splice.apply(horizon, [i, j - i + 1].concat(changedHorizon));
});
horizon.forEach(function (horizonPart) {
var affectedBoundary = horizonPart.boundary;
if (affectedBoundary.x2New === undefined) {
affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);
}
});
}
function TextLayerRenderTask({
textContent,
textContentStream,
container,
viewport,
textDivs,
textContentItemsStr,
enhanceTextSelection
}) {
this._textContent = textContent;
this._textContentStream = textContentStream;
this._container = container;
this._viewport = viewport;
this._textDivs = textDivs || [];
this._textContentItemsStr = textContentItemsStr || [];
this._enhanceTextSelection = !!enhanceTextSelection;
this._fontInspectorEnabled = !!(globalThis.FontInspector && globalThis.FontInspector.enabled);
this._reader = null;
this._layoutTextLastFontSize = null;
this._layoutTextLastFontFamily = null;
this._layoutTextCtx = null;
this._textDivProperties = new WeakMap();
this._renderingDone = false;
this._canceled = false;
this._capability = (0, _util.createPromiseCapability)();
this._renderTimer = null;
this._bounds = [];
this._capability.promise.finally(() => {
if (this._layoutTextCtx) {
this._layoutTextCtx.canvas.width = 0;
this._layoutTextCtx.canvas.height = 0;
this._layoutTextCtx = null;
}
}).catch(() => {});
}
TextLayerRenderTask.prototype = {
get promise() {
return this._capability.promise;
},
cancel: function TextLayer_cancel() {
this._canceled = true;
if (this._reader) {
this._reader.cancel(new _util.AbortException("TextLayer task cancelled."));
this._reader = null;
}
if (this._renderTimer !== null) {
clearTimeout(this._renderTimer);
this._renderTimer = null;
}
this._capability.reject(new Error("TextLayer task cancelled."));
},
_processItems(items, styleCache) {
for (let i = 0, len = items.length; i < len; i++) {
this._textContentItemsStr.push(items[i].str);
appendText(this, items[i], styleCache);
}
},
_layoutText(textDiv) {
const textDivProperties = this._textDivProperties.get(textDiv);
if (textDivProperties.isWhitespace) {
return;
}
let transform = "";
if (textDivProperties.canvasWidth !== 0) {
const {
fontSize,
fontFamily
} = textDiv.style;
if (fontSize !== this._layoutTextLastFontSize || fontFamily !== this._layoutTextLastFontFamily) {
this._layoutTextCtx.font = `${fontSize} ${fontFamily}`;
this._layoutTextLastFontSize = fontSize;
this._layoutTextLastFontFamily = fontFamily;
}
const {
width
} = this._layoutTextCtx.measureText(textDiv.textContent);
if (width > 0) {
textDivProperties.scale = textDivProperties.canvasWidth / width;
transform = `scaleX(${textDivProperties.scale})`;
}
}
if (textDivProperties.angle !== 0) {
transform = `rotate(${textDivProperties.angle}deg) ${transform}`;
}
if (transform.length > 0) {
if (this._enhanceTextSelection) {
textDivProperties.originalTransform = transform;
}
textDiv.style.transform = transform;
}
this._textDivProperties.set(textDiv, textDivProperties);
this._container.appendChild(textDiv);
},
_render: function TextLayer_render(timeout) {
const capability = (0, _util.createPromiseCapability)();
let styleCache = Object.create(null);
const canvas = document.createElement("canvas");
canvas.mozOpaque = true;
this._layoutTextCtx = canvas.getContext("2d", {
alpha: false
});
if (this._textContent) {
const textItems = this._textContent.items;
const textStyles = this._textContent.styles;
this._processItems(textItems, textStyles);
capability.resolve();
} else if (this._textContentStream) {
const pump = () => {
this._reader.read().then(({
value,
done
}) => {
if (done) {
capability.resolve();
return;
}
Object.assign(styleCache, value.styles);
this._processItems(value.items, styleCache);
pump();
}, capability.reject);
};
this._reader = this._textContentStream.getReader();
pump();
} else {
throw new Error('Neither "textContent" nor "textContentStream"' + " parameters specified.");
}
capability.promise.then(() => {
styleCache = null;
if (!timeout) {
render(this);
} else {
this._renderTimer = setTimeout(() => {
render(this);
this._renderTimer = null;
}, timeout);
}
}, this._capability.reject);
},
expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {
if (!this._enhanceTextSelection || !this._renderingDone) {
return;
}
if (this._bounds !== null) {
expand(this);
this._bounds = null;
}
const transformBuf = [],
paddingBuf = [];
for (var i = 0, ii = this._textDivs.length; i < ii; i++) {
const div = this._textDivs[i];
const divProps = this._textDivProperties.get(div);
if (divProps.isWhitespace) {
continue;
}
if (expandDivs) {
transformBuf.length = 0;
paddingBuf.length = 0;
if (divProps.originalTransform) {
transformBuf.push(divProps.originalTransform);
}
if (divProps.paddingTop > 0) {
paddingBuf.push(`${divProps.paddingTop}px`);
transformBuf.push(`translateY(${-divProps.paddingTop}px)`);
} else {
paddingBuf.push(0);
}
if (divProps.paddingRight > 0) {
paddingBuf.push(`${divProps.paddingRight / divProps.scale}px`);
} else {
paddingBuf.push(0);
}
if (divProps.paddingBottom > 0) {
paddingBuf.push(`${divProps.paddingBottom}px`);
} else {
paddingBuf.push(0);
}
if (divProps.paddingLeft > 0) {
paddingBuf.push(`${divProps.paddingLeft / divProps.scale}px`);
transformBuf.push(`translateX(${-divProps.paddingLeft / divProps.scale}px)`);
} else {
paddingBuf.push(0);
}
div.style.padding = paddingBuf.join(" ");
if (transformBuf.length) {
div.style.transform = transformBuf.join(" ");
}
} else {
div.style.padding = null;
div.style.transform = divProps.originalTransform;
}
}
}
};
function renderTextLayer(renderParameters) {
var task = new TextLayerRenderTask({
textContent: renderParameters.textContent,
textContentStream: renderParameters.textContentStream,
container: renderParameters.container,
viewport: renderParameters.viewport,
textDivs: renderParameters.textDivs,
textContentItemsStr: renderParameters.textContentItemsStr,
enhanceTextSelection: renderParameters.enhanceTextSelection
});
task._render(renderParameters.timeout);
return task;
}
return renderTextLayer;
}();
exports.renderTextLayer = renderTextLayer;
/***/ }),
/* 17 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.AnnotationLayer = void 0;
var _display_utils = __w_pdfjs_require__(4);
var _util = __w_pdfjs_require__(1);
class AnnotationElementFactory {
static create(parameters) {
const subtype = parameters.data.annotationType;
switch (subtype) {
case _util.AnnotationType.LINK:
return new LinkAnnotationElement(parameters);
case _util.AnnotationType.TEXT:
return new TextAnnotationElement(parameters);
case _util.AnnotationType.WIDGET:
const fieldType = parameters.data.fieldType;
switch (fieldType) {
case "Tx":
return new TextWidgetAnnotationElement(parameters);
case "Btn":
if (parameters.data.radioButton) {
return new RadioButtonWidgetAnnotationElement(parameters);
} else if (parameters.data.checkBox) {
return new CheckboxWidgetAnnotationElement(parameters);
}
return new PushButtonWidgetAnnotationElement(parameters);
case "Ch":
return new ChoiceWidgetAnnotationElement(parameters);
}
return new WidgetAnnotationElement(parameters);
case _util.AnnotationType.POPUP:
return new PopupAnnotationElement(parameters);
case _util.AnnotationType.FREETEXT:
return new FreeTextAnnotationElement(parameters);
case _util.AnnotationType.LINE:
return new LineAnnotationElement(parameters);
case _util.AnnotationType.SQUARE:
return new SquareAnnotationElement(parameters);
case _util.AnnotationType.CIRCLE:
return new CircleAnnotationElement(parameters);
case _util.AnnotationType.POLYLINE:
return new PolylineAnnotationElement(parameters);
case _util.AnnotationType.CARET:
return new CaretAnnotationElement(parameters);
case _util.AnnotationType.INK:
return new InkAnnotationElement(parameters);
case _util.AnnotationType.POLYGON:
return new PolygonAnnotationElement(parameters);
case _util.AnnotationType.HIGHLIGHT:
return new HighlightAnnotationElement(parameters);
case _util.AnnotationType.UNDERLINE:
return new UnderlineAnnotationElement(parameters);
case _util.AnnotationType.SQUIGGLY:
return new SquigglyAnnotationElement(parameters);
case _util.AnnotationType.STRIKEOUT:
return new StrikeOutAnnotationElement(parameters);
case _util.AnnotationType.STAMP:
return new StampAnnotationElement(parameters);
case _util.AnnotationType.FILEATTACHMENT:
return new FileAttachmentAnnotationElement(parameters);
default:
return new AnnotationElement(parameters);
}
}
}
class AnnotationElement {
constructor(parameters, isRenderable = false, ignoreBorder = false) {
this.isRenderable = isRenderable;
this.data = parameters.data;
this.layer = parameters.layer;
this.page = parameters.page;
this.viewport = parameters.viewport;
this.linkService = parameters.linkService;
this.downloadManager = parameters.downloadManager;
this.imageResourcesPath = parameters.imageResourcesPath;
this.renderInteractiveForms = parameters.renderInteractiveForms;
this.svgFactory = parameters.svgFactory;
if (isRenderable) {
this.container = this._createContainer(ignoreBorder);
}
}
_createContainer(ignoreBorder = false) {
const data = this.data,
page = this.page,
viewport = this.viewport;
const container = document.createElement("section");
let width = data.rect[2] - data.rect[0];
let height = data.rect[3] - data.rect[1];
container.setAttribute("data-annotation-id", data.id);
const rect = _util.Util.normalizeRect([data.rect[0], page.view[3] - data.rect[1] + page.view[1], data.rect[2], page.view[3] - data.rect[3] + page.view[1]]);
container.style.transform = `matrix(${viewport.transform.join(",")})`;
container.style.transformOrigin = `-${rect[0]}px -${rect[1]}px`;
if (!ignoreBorder && data.borderStyle.width > 0) {
container.style.borderWidth = `${data.borderStyle.width}px`;
if (data.borderStyle.style !== _util.AnnotationBorderStyleType.UNDERLINE) {
width = width - 2 * data.borderStyle.width;
height = height - 2 * data.borderStyle.width;
}
const horizontalRadius = data.borderStyle.horizontalCornerRadius;
const verticalRadius = data.borderStyle.verticalCornerRadius;
if (horizontalRadius > 0 || verticalRadius > 0) {
const radius = `${horizontalRadius}px / ${verticalRadius}px`;
container.style.borderRadius = radius;
}
switch (data.borderStyle.style) {
case _util.AnnotationBorderStyleType.SOLID:
container.style.borderStyle = "solid";
break;
case _util.AnnotationBorderStyleType.DASHED:
container.style.borderStyle = "dashed";
break;
case _util.AnnotationBorderStyleType.BEVELED:
(0, _util.warn)("Unimplemented border style: beveled");
break;
case _util.AnnotationBorderStyleType.INSET:
(0, _util.warn)("Unimplemented border style: inset");
break;
case _util.AnnotationBorderStyleType.UNDERLINE:
container.style.borderBottomStyle = "solid";
break;
default:
break;
}
if (data.color) {
container.style.borderColor = _util.Util.makeCssRgb(data.color[0] | 0, data.color[1] | 0, data.color[2] | 0);
} else {
container.style.borderWidth = 0;
}
}
container.style.left = `${rect[0]}px`;
container.style.top = `${rect[1]}px`;
container.style.width = `${width}px`;
container.style.height = `${height}px`;
return container;
}
_createPopup(container, trigger, data) {
if (!trigger) {
trigger = document.createElement("div");
trigger.style.height = container.style.height;
trigger.style.width = container.style.width;
container.appendChild(trigger);
}
const popupElement = new PopupElement({
container,
trigger,
color: data.color,
title: data.title,
modificationDate: data.modificationDate,
contents: data.contents,
hideWrapper: true
});
const popup = popupElement.render();
popup.style.left = container.style.width;
container.appendChild(popup);
}
render() {
(0, _util.unreachable)("Abstract method `AnnotationElement.render` called");
}
}
class LinkAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.url || parameters.data.dest || parameters.data.action);
super(parameters, isRenderable);
}
render() {
this.container.className = "linkAnnotation";
const {
data,
linkService
} = this;
const link = document.createElement("a");
if (data.url) {
(0, _display_utils.addLinkAttributes)(link, {
url: data.url,
target: data.newWindow ? _display_utils.LinkTarget.BLANK : linkService.externalLinkTarget,
rel: linkService.externalLinkRel,
enabled: linkService.externalLinkEnabled
});
} else if (data.action) {
this._bindNamedAction(link, data.action);
} else {
this._bindLink(link, data.dest);
}
this.container.appendChild(link);
return this.container;
}
_bindLink(link, destination) {
link.href = this.linkService.getDestinationHash(destination);
link.onclick = () => {
if (destination) {
this.linkService.navigateTo(destination);
}
return false;
};
if (destination) {
link.className = "internalLink";
}
}
_bindNamedAction(link, action) {
link.href = this.linkService.getAnchorUrl("");
link.onclick = () => {
this.linkService.executeNamedAction(action);
return false;
};
link.className = "internalLink";
}
}
class TextAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable);
}
render() {
this.container.className = "textAnnotation";
const image = document.createElement("img");
image.style.height = this.container.style.height;
image.style.width = this.container.style.width;
image.src = this.imageResourcesPath + "annotation-" + this.data.name.toLowerCase() + ".svg";
image.alt = "[{{type}} Annotation]";
image.dataset.l10nId = "text_annotation_type";
image.dataset.l10nArgs = JSON.stringify({
type: this.data.name
});
if (!this.data.hasPopup) {
this._createPopup(this.container, image, this.data);
}
this.container.appendChild(image);
return this.container;
}
}
class WidgetAnnotationElement extends AnnotationElement {
render() {
return this.container;
}
}
class TextWidgetAnnotationElement extends WidgetAnnotationElement {
constructor(parameters) {
const isRenderable = parameters.renderInteractiveForms || !parameters.data.hasAppearance && !!parameters.data.fieldValue;
super(parameters, isRenderable);
}
render() {
const TEXT_ALIGNMENT = ["left", "center", "right"];
this.container.className = "textWidgetAnnotation";
let element = null;
if (this.renderInteractiveForms) {
if (this.data.multiLine) {
element = document.createElement("textarea");
element.textContent = this.data.fieldValue;
} else {
element = document.createElement("input");
element.type = "text";
element.setAttribute("value", this.data.fieldValue);
}
element.disabled = this.data.readOnly;
if (this.data.maxLen !== null) {
element.maxLength = this.data.maxLen;
}
if (this.data.comb) {
const fieldWidth = this.data.rect[2] - this.data.rect[0];
const combWidth = fieldWidth / this.data.maxLen;
element.classList.add("comb");
element.style.letterSpacing = `calc(${combWidth}px - 1ch)`;
}
} else {
element = document.createElement("div");
element.textContent = this.data.fieldValue;
element.style.verticalAlign = "middle";
element.style.display = "table-cell";
let font = null;
if (this.data.fontRefName && this.page.commonObjs.has(this.data.fontRefName)) {
font = this.page.commonObjs.get(this.data.fontRefName);
}
this._setTextStyle(element, font);
}
if (this.data.textAlignment !== null) {
element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];
}
this.container.appendChild(element);
return this.container;
}
_setTextStyle(element, font) {
const style = element.style;
style.fontSize = `${this.data.fontSize}px`;
style.direction = this.data.fontDirection < 0 ? "rtl" : "ltr";
if (!font) {
return;
}
let bold = "normal";
if (font.black) {
bold = "900";
} else if (font.bold) {
bold = "bold";
}
style.fontWeight = bold;
style.fontStyle = font.italic ? "italic" : "normal";
const fontFamily = font.loadedName ? `"${font.loadedName}", ` : "";
const fallbackName = font.fallbackName || "Helvetica, sans-serif";
style.fontFamily = fontFamily + fallbackName;
}
}
class CheckboxWidgetAnnotationElement extends WidgetAnnotationElement {
constructor(parameters) {
super(parameters, parameters.renderInteractiveForms);
}
render() {
this.container.className = "buttonWidgetAnnotation checkBox";
const element = document.createElement("input");
element.disabled = this.data.readOnly;
element.type = "checkbox";
if (this.data.fieldValue && this.data.fieldValue !== "Off") {
element.setAttribute("checked", true);
}
this.container.appendChild(element);
return this.container;
}
}
class RadioButtonWidgetAnnotationElement extends WidgetAnnotationElement {
constructor(parameters) {
super(parameters, parameters.renderInteractiveForms);
}
render() {
this.container.className = "buttonWidgetAnnotation radioButton";
const element = document.createElement("input");
element.disabled = this.data.readOnly;
element.type = "radio";
element.name = this.data.fieldName;
if (this.data.fieldValue === this.data.buttonValue) {
element.setAttribute("checked", true);
}
this.container.appendChild(element);
return this.container;
}
}
class PushButtonWidgetAnnotationElement extends LinkAnnotationElement {
render() {
const container = super.render();
container.className = "buttonWidgetAnnotation pushButton";
return container;
}
}
class ChoiceWidgetAnnotationElement extends WidgetAnnotationElement {
constructor(parameters) {
super(parameters, parameters.renderInteractiveForms);
}
render() {
this.container.className = "choiceWidgetAnnotation";
const selectElement = document.createElement("select");
selectElement.disabled = this.data.readOnly;
if (!this.data.combo) {
selectElement.size = this.data.options.length;
if (this.data.multiSelect) {
selectElement.multiple = true;
}
}
for (const option of this.data.options) {
const optionElement = document.createElement("option");
optionElement.textContent = option.displayValue;
optionElement.value = option.exportValue;
if (this.data.fieldValue.includes(option.displayValue)) {
optionElement.setAttribute("selected", true);
}
selectElement.appendChild(optionElement);
}
this.container.appendChild(selectElement);
return this.container;
}
}
class PopupAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.title || parameters.data.contents);
super(parameters, isRenderable);
}
render() {
const IGNORE_TYPES = ["Line", "Square", "Circle", "PolyLine", "Polygon", "Ink"];
this.container.className = "popupAnnotation";
if (IGNORE_TYPES.includes(this.data.parentType)) {
return this.container;
}
const selector = `[data-annotation-id="${this.data.parentId}"]`;
const parentElement = this.layer.querySelector(selector);
if (!parentElement) {
return this.container;
}
const popup = new PopupElement({
container: this.container,
trigger: parentElement,
color: this.data.color,
title: this.data.title,
modificationDate: this.data.modificationDate,
contents: this.data.contents
});
const parentLeft = parseFloat(parentElement.style.left);
const parentWidth = parseFloat(parentElement.style.width);
this.container.style.transformOrigin = `-${parentLeft + parentWidth}px -${parentElement.style.top}`;
this.container.style.left = `${parentLeft + parentWidth}px`;
this.container.appendChild(popup.render());
return this.container;
}
}
class PopupElement {
constructor(parameters) {
this.container = parameters.container;
this.trigger = parameters.trigger;
this.color = parameters.color;
this.title = parameters.title;
this.modificationDate = parameters.modificationDate;
this.contents = parameters.contents;
this.hideWrapper = parameters.hideWrapper || false;
this.pinned = false;
}
render() {
const BACKGROUND_ENLIGHT = 0.7;
const wrapper = document.createElement("div");
wrapper.className = "popupWrapper";
this.hideElement = this.hideWrapper ? wrapper : this.container;
this.hideElement.setAttribute("hidden", true);
const popup = document.createElement("div");
popup.className = "popup";
const color = this.color;
if (color) {
const r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];
const g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];
const b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];
popup.style.backgroundColor = _util.Util.makeCssRgb(r | 0, g | 0, b | 0);
}
const title = document.createElement("h1");
title.textContent = this.title;
popup.appendChild(title);
const dateObject = _display_utils.PDFDateString.toDateObject(this.modificationDate);
if (dateObject) {
const modificationDate = document.createElement("span");
modificationDate.textContent = "{{date}}, {{time}}";
modificationDate.dataset.l10nId = "annotation_date_string";
modificationDate.dataset.l10nArgs = JSON.stringify({
date: dateObject.toLocaleDateString(),
time: dateObject.toLocaleTimeString()
});
popup.appendChild(modificationDate);
}
const contents = this._formatContents(this.contents);
popup.appendChild(contents);
this.trigger.addEventListener("click", this._toggle.bind(this));
this.trigger.addEventListener("mouseover", this._show.bind(this, false));
this.trigger.addEventListener("mouseout", this._hide.bind(this, false));
popup.addEventListener("click", this._hide.bind(this, true));
wrapper.appendChild(popup);
return wrapper;
}
_formatContents(contents) {
const p = document.createElement("p");
const lines = contents.split(/(?:\r\n?|\n)/);
for (let i = 0, ii = lines.length; i < ii; ++i) {
const line = lines[i];
p.appendChild(document.createTextNode(line));
if (i < ii - 1) {
p.appendChild(document.createElement("br"));
}
}
return p;
}
_toggle() {
if (this.pinned) {
this._hide(true);
} else {
this._show(true);
}
}
_show(pin = false) {
if (pin) {
this.pinned = true;
}
if (this.hideElement.hasAttribute("hidden")) {
this.hideElement.removeAttribute("hidden");
this.container.style.zIndex += 1;
}
}
_hide(unpin = true) {
if (unpin) {
this.pinned = false;
}
if (!this.hideElement.hasAttribute("hidden") && !this.pinned) {
this.hideElement.setAttribute("hidden", true);
this.container.style.zIndex -= 1;
}
}
}
class FreeTextAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "freeTextAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class LineAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "lineAnnotation";
const data = this.data;
const width = data.rect[2] - data.rect[0];
const height = data.rect[3] - data.rect[1];
const svg = this.svgFactory.create(width, height);
const line = this.svgFactory.createElement("svg:line");
line.setAttribute("x1", data.rect[2] - data.lineCoordinates[0]);
line.setAttribute("y1", data.rect[3] - data.lineCoordinates[1]);
line.setAttribute("x2", data.rect[2] - data.lineCoordinates[2]);
line.setAttribute("y2", data.rect[3] - data.lineCoordinates[3]);
line.setAttribute("stroke-width", data.borderStyle.width || 1);
line.setAttribute("stroke", "transparent");
svg.appendChild(line);
this.container.append(svg);
this._createPopup(this.container, line, data);
return this.container;
}
}
class SquareAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "squareAnnotation";
const data = this.data;
const width = data.rect[2] - data.rect[0];
const height = data.rect[3] - data.rect[1];
const svg = this.svgFactory.create(width, height);
const borderWidth = data.borderStyle.width;
const square = this.svgFactory.createElement("svg:rect");
square.setAttribute("x", borderWidth / 2);
square.setAttribute("y", borderWidth / 2);
square.setAttribute("width", width - borderWidth);
square.setAttribute("height", height - borderWidth);
square.setAttribute("stroke-width", borderWidth || 1);
square.setAttribute("stroke", "transparent");
square.setAttribute("fill", "none");
svg.appendChild(square);
this.container.append(svg);
this._createPopup(this.container, square, data);
return this.container;
}
}
class CircleAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "circleAnnotation";
const data = this.data;
const width = data.rect[2] - data.rect[0];
const height = data.rect[3] - data.rect[1];
const svg = this.svgFactory.create(width, height);
const borderWidth = data.borderStyle.width;
const circle = this.svgFactory.createElement("svg:ellipse");
circle.setAttribute("cx", width / 2);
circle.setAttribute("cy", height / 2);
circle.setAttribute("rx", width / 2 - borderWidth / 2);
circle.setAttribute("ry", height / 2 - borderWidth / 2);
circle.setAttribute("stroke-width", borderWidth || 1);
circle.setAttribute("stroke", "transparent");
circle.setAttribute("fill", "none");
svg.appendChild(circle);
this.container.append(svg);
this._createPopup(this.container, circle, data);
return this.container;
}
}
class PolylineAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
this.containerClassName = "polylineAnnotation";
this.svgElementName = "svg:polyline";
}
render() {
this.container.className = this.containerClassName;
const data = this.data;
const width = data.rect[2] - data.rect[0];
const height = data.rect[3] - data.rect[1];
const svg = this.svgFactory.create(width, height);
let points = [];
for (const coordinate of data.vertices) {
const x = coordinate.x - data.rect[0];
const y = data.rect[3] - coordinate.y;
points.push(x + "," + y);
}
points = points.join(" ");
const polyline = this.svgFactory.createElement(this.svgElementName);
polyline.setAttribute("points", points);
polyline.setAttribute("stroke-width", data.borderStyle.width || 1);
polyline.setAttribute("stroke", "transparent");
polyline.setAttribute("fill", "none");
svg.appendChild(polyline);
this.container.append(svg);
this._createPopup(this.container, polyline, data);
return this.container;
}
}
class PolygonAnnotationElement extends PolylineAnnotationElement {
constructor(parameters) {
super(parameters);
this.containerClassName = "polygonAnnotation";
this.svgElementName = "svg:polygon";
}
}
class CaretAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "caretAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class InkAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
this.containerClassName = "inkAnnotation";
this.svgElementName = "svg:polyline";
}
render() {
this.container.className = this.containerClassName;
const data = this.data;
const width = data.rect[2] - data.rect[0];
const height = data.rect[3] - data.rect[1];
const svg = this.svgFactory.create(width, height);
for (const inkList of data.inkLists) {
let points = [];
for (const coordinate of inkList) {
const x = coordinate.x - data.rect[0];
const y = data.rect[3] - coordinate.y;
points.push(`${x},${y}`);
}
points = points.join(" ");
const polyline = this.svgFactory.createElement(this.svgElementName);
polyline.setAttribute("points", points);
polyline.setAttribute("stroke-width", data.borderStyle.width || 1);
polyline.setAttribute("stroke", "transparent");
polyline.setAttribute("fill", "none");
this._createPopup(this.container, polyline, data);
svg.appendChild(polyline);
}
this.container.append(svg);
return this.container;
}
}
class HighlightAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "highlightAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class UnderlineAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "underlineAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class SquigglyAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "squigglyAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class StrikeOutAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "strikeoutAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class StampAnnotationElement extends AnnotationElement {
constructor(parameters) {
const isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
super(parameters, isRenderable, true);
}
render() {
this.container.className = "stampAnnotation";
if (!this.data.hasPopup) {
this._createPopup(this.container, null, this.data);
}
return this.container;
}
}
class FileAttachmentAnnotationElement extends AnnotationElement {
constructor(parameters) {
super(parameters, true);
const {
filename,
content
} = this.data.file;
this.filename = (0, _display_utils.getFilenameFromUrl)(filename);
this.content = content;
if (this.linkService.eventBus) {
this.linkService.eventBus.dispatch("fileattachmentannotation", {
source: this,
id: (0, _util.stringToPDFString)(filename),
filename,
content
});
}
}
render() {
this.container.className = "fileAttachmentAnnotation";
const trigger = document.createElement("div");
trigger.style.height = this.container.style.height;
trigger.style.width = this.container.style.width;
trigger.addEventListener("dblclick", this._download.bind(this));
if (!this.data.hasPopup && (this.data.title || this.data.contents)) {
this._createPopup(this.container, trigger, this.data);
}
this.container.appendChild(trigger);
return this.container;
}
_download() {
if (!this.downloadManager) {
(0, _util.warn)("Download cannot be started due to unavailable download manager");
return;
}
this.downloadManager.downloadData(this.content, this.filename, "");
}
}
class AnnotationLayer {
static render(parameters) {
const sortedAnnotations = [],
popupAnnotations = [];
for (const data of parameters.annotations) {
if (!data) {
continue;
}
if (data.annotationType === _util.AnnotationType.POPUP) {
popupAnnotations.push(data);
continue;
}
sortedAnnotations.push(data);
}
if (popupAnnotations.length) {
sortedAnnotations.push(...popupAnnotations);
}
for (const data of sortedAnnotations) {
const element = AnnotationElementFactory.create({
data,
layer: parameters.div,
page: parameters.page,
viewport: parameters.viewport,
linkService: parameters.linkService,
downloadManager: parameters.downloadManager,
imageResourcesPath: parameters.imageResourcesPath || "",
renderInteractiveForms: parameters.renderInteractiveForms || false,
svgFactory: new _display_utils.DOMSVGFactory()
});
if (element.isRenderable) {
parameters.div.appendChild(element.render());
}
}
}
static update(parameters) {
for (const data of parameters.annotations) {
const element = parameters.div.querySelector(`[data-annotation-id="${data.id}"]`);
if (element) {
element.style.transform = `matrix(${parameters.viewport.transform.join(",")})`;
}
}
parameters.div.removeAttribute("hidden");
}
}
exports.AnnotationLayer = AnnotationLayer;
/***/ }),
/* 18 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.SVGGraphics = void 0;
var _util = __w_pdfjs_require__(1);
var _display_utils = __w_pdfjs_require__(4);
var _is_node = __w_pdfjs_require__(7);
let SVGGraphics = function () {
throw new Error("Not implemented: SVGGraphics");
};
exports.SVGGraphics = SVGGraphics;
{
const SVG_DEFAULTS = {
fontStyle: "normal",
fontWeight: "normal",
fillColor: "#000000"
};
const XML_NS = "http://www.w3.org/XML/1998/namespace";
const XLINK_NS = "http://www.w3.org/1999/xlink";
const LINE_CAP_STYLES = ["butt", "round", "square"];
const LINE_JOIN_STYLES = ["miter", "round", "bevel"];
const convertImgDataToPng = function () {
const PNG_HEADER = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
const CHUNK_WRAPPER_SIZE = 12;
const crcTable = new Int32Array(256);
for (let i = 0; i < 256; i++) {
let c = i;
for (let h = 0; h < 8; h++) {
if (c & 1) {
c = 0xedb88320 ^ c >> 1 & 0x7fffffff;
} else {
c = c >> 1 & 0x7fffffff;
}
}
crcTable[i] = c;
}
function crc32(data, start, end) {
let crc = -1;
for (let i = start; i < end; i++) {
const a = (crc ^ data[i]) & 0xff;
const b = crcTable[a];
crc = crc >>> 8 ^ b;
}
return crc ^ -1;
}
function writePngChunk(type, body, data, offset) {
let p = offset;
const len = body.length;
data[p] = len >> 24 & 0xff;
data[p + 1] = len >> 16 & 0xff;
data[p + 2] = len >> 8 & 0xff;
data[p + 3] = len & 0xff;
p += 4;
data[p] = type.charCodeAt(0) & 0xff;
data[p + 1] = type.charCodeAt(1) & 0xff;
data[p + 2] = type.charCodeAt(2) & 0xff;
data[p + 3] = type.charCodeAt(3) & 0xff;
p += 4;
data.set(body, p);
p += body.length;
const crc = crc32(data, offset + 4, p);
data[p] = crc >> 24 & 0xff;
data[p + 1] = crc >> 16 & 0xff;
data[p + 2] = crc >> 8 & 0xff;
data[p + 3] = crc & 0xff;
}
function adler32(data, start, end) {
let a = 1;
let b = 0;
for (let i = start; i < end; ++i) {
a = (a + (data[i] & 0xff)) % 65521;
b = (b + a) % 65521;
}
return b << 16 | a;
}
function deflateSync(literals) {
if (!_is_node.isNodeJS) {
return deflateSyncUncompressed(literals);
}
try {
let input;
if (parseInt(process.versions.node) >= 8) {
input = literals;
} else {
input = Buffer.from(literals);
}
const output = require("zlib").deflateSync(input, {
level: 9
});
return output instanceof Uint8Array ? output : new Uint8Array(output);
} catch (e) {
(0, _util.warn)("Not compressing PNG because zlib.deflateSync is unavailable: " + e);
}
return deflateSyncUncompressed(literals);
}
function deflateSyncUncompressed(literals) {
let len = literals.length;
const maxBlockLength = 0xffff;
const deflateBlocks = Math.ceil(len / maxBlockLength);
const idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
let pi = 0;
idat[pi++] = 0x78;
idat[pi++] = 0x9c;
let pos = 0;
while (len > maxBlockLength) {
idat[pi++] = 0x00;
idat[pi++] = 0xff;
idat[pi++] = 0xff;
idat[pi++] = 0x00;
idat[pi++] = 0x00;
idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
pi += maxBlockLength;
pos += maxBlockLength;
len -= maxBlockLength;
}
idat[pi++] = 0x01;
idat[pi++] = len & 0xff;
idat[pi++] = len >> 8 & 0xff;
idat[pi++] = ~len & 0xffff & 0xff;
idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
idat.set(literals.subarray(pos), pi);
pi += literals.length - pos;
const adler = adler32(literals, 0, literals.length);
idat[pi++] = adler >> 24 & 0xff;
idat[pi++] = adler >> 16 & 0xff;
idat[pi++] = adler >> 8 & 0xff;
idat[pi++] = adler & 0xff;
return idat;
}
function encode(imgData, kind, forceDataSchema, isMask) {
const width = imgData.width;
const height = imgData.height;
let bitDepth, colorType, lineSize;
const bytes = imgData.data;
switch (kind) {
case _util.ImageKind.GRAYSCALE_1BPP:
colorType = 0;
bitDepth = 1;
lineSize = width + 7 >> 3;
break;
case _util.ImageKind.RGB_24BPP:
colorType = 2;
bitDepth = 8;
lineSize = width * 3;
break;
case _util.ImageKind.RGBA_32BPP:
colorType = 6;
bitDepth = 8;
lineSize = width * 4;
break;
default:
throw new Error("invalid format");
}
const literals = new Uint8Array((1 + lineSize) * height);
let offsetLiterals = 0,
offsetBytes = 0;
for (let y = 0; y < height; ++y) {
literals[offsetLiterals++] = 0;
literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize), offsetLiterals);
offsetBytes += lineSize;
offsetLiterals += lineSize;
}
if (kind === _util.ImageKind.GRAYSCALE_1BPP && isMask) {
offsetLiterals = 0;
for (let y = 0; y < height; y++) {
offsetLiterals++;
for (let i = 0; i < lineSize; i++) {
literals[offsetLiterals++] ^= 0xff;
}
}
}
const ihdr = new Uint8Array([width >> 24 & 0xff, width >> 16 & 0xff, width >> 8 & 0xff, width & 0xff, height >> 24 & 0xff, height >> 16 & 0xff, height >> 8 & 0xff, height & 0xff, bitDepth, colorType, 0x00, 0x00, 0x00]);
const idat = deflateSync(literals);
const pngLength = PNG_HEADER.length + CHUNK_WRAPPER_SIZE * 3 + ihdr.length + idat.length;
const data = new Uint8Array(pngLength);
let offset = 0;
data.set(PNG_HEADER, offset);
offset += PNG_HEADER.length;
writePngChunk("IHDR", ihdr, data, offset);
offset += CHUNK_WRAPPER_SIZE + ihdr.length;
writePngChunk("IDATA", idat, data, offset);
offset += CHUNK_WRAPPER_SIZE + idat.length;
writePngChunk("IEND", new Uint8Array(0), data, offset);
return (0, _util.createObjectURL)(data, "image/png", forceDataSchema);
}
return function convertImgDataToPng(imgData, forceDataSchema, isMask) {
const kind = imgData.kind === undefined ? _util.ImageKind.GRAYSCALE_1BPP : imgData.kind;
return encode(imgData, kind, forceDataSchema, isMask);
};
}();
class SVGExtraState {
constructor() {
this.fontSizeScale = 1;
this.fontWeight = SVG_DEFAULTS.fontWeight;
this.fontSize = 0;
this.textMatrix = _util.IDENTITY_MATRIX;
this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
this.leading = 0;
this.textRenderingMode = _util.TextRenderingMode.FILL;
this.textMatrixScale = 1;
this.x = 0;
this.y = 0;
this.lineX = 0;
this.lineY = 0;
this.charSpacing = 0;
this.wordSpacing = 0;
this.textHScale = 1;
this.textRise = 0;
this.fillColor = SVG_DEFAULTS.fillColor;
this.strokeColor = "#000000";
this.fillAlpha = 1;
this.strokeAlpha = 1;
this.lineWidth = 1;
this.lineJoin = "";
this.lineCap = "";
this.miterLimit = 0;
this.dashArray = [];
this.dashPhase = 0;
this.dependencies = [];
this.activeClipUrl = null;
this.clipGroup = null;
this.maskId = "";
}
clone() {
return Object.create(this);
}
setCurrentPoint(x, y) {
this.x = x;
this.y = y;
}
}
function opListToTree(opList) {
let opTree = [];
const tmp = [];
for (const opListElement of opList) {
if (opListElement.fn === "save") {
opTree.push({
fnId: 92,
fn: "group",
items: []
});
tmp.push(opTree);
opTree = opTree[opTree.length - 1].items;
continue;
}
if (opListElement.fn === "restore") {
opTree = tmp.pop();
} else {
opTree.push(opListElement);
}
}
return opTree;
}
function pf(value) {
if (Number.isInteger(value)) {
return value.toString();
}
const s = value.toFixed(10);
let i = s.length - 1;
if (s[i] !== "0") {
return s;
}
do {
i--;
} while (s[i] === "0");
return s.substring(0, s[i] === "." ? i : i + 1);
}
function pm(m) {
if (m[4] === 0 && m[5] === 0) {
if (m[1] === 0 && m[2] === 0) {
if (m[0] === 1 && m[3] === 1) {
return "";
}
return `scale(${pf(m[0])} ${pf(m[3])})`;
}
if (m[0] === m[3] && m[1] === -m[2]) {
const a = Math.acos(m[0]) * 180 / Math.PI;
return `rotate(${pf(a)})`;
}
} else {
if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
return `translate(${pf(m[4])} ${pf(m[5])})`;
}
}
return `matrix(${pf(m[0])} ${pf(m[1])} ${pf(m[2])} ${pf(m[3])} ${pf(m[4])} ` + `${pf(m[5])})`;
}
let clipCount = 0;
let maskCount = 0;
let shadingCount = 0;
exports.SVGGraphics = SVGGraphics = class SVGGraphics {
constructor(commonObjs, objs, forceDataSchema) {
this.svgFactory = new _display_utils.DOMSVGFactory();
this.current = new SVGExtraState();
this.transformMatrix = _util.IDENTITY_MATRIX;
this.transformStack = [];
this.extraStack = [];
this.commonObjs = commonObjs;
this.objs = objs;
this.pendingClip = null;
this.pendingEOFill = false;
this.embedFonts = false;
this.embeddedFonts = Object.create(null);
this.cssStyle = null;
this.forceDataSchema = !!forceDataSchema;
this._operatorIdMapping = [];
for (const op in _util.OPS) {
this._operatorIdMapping[_util.OPS[op]] = op;
}
}
save() {
this.transformStack.push(this.transformMatrix);
const old = this.current;
this.extraStack.push(old);
this.current = old.clone();
}
restore() {
this.transformMatrix = this.transformStack.pop();
this.current = this.extraStack.pop();
this.pendingClip = null;
this.tgrp = null;
}
group(items) {
this.save();
this.executeOpTree(items);
this.restore();
}
loadDependencies(operatorList) {
const fnArray = operatorList.fnArray;
const argsArray = operatorList.argsArray;
for (let i = 0, ii = fnArray.length; i < ii; i++) {
if (fnArray[i] !== _util.OPS.dependency) {
continue;
}
for (const obj of argsArray[i]) {
const objsPool = obj.startsWith("g_") ? this.commonObjs : this.objs;
const promise = new Promise(resolve => {
objsPool.get(obj, resolve);
});
this.current.dependencies.push(promise);
}
}
return Promise.all(this.current.dependencies);
}
transform(a, b, c, d, e, f) {
const transformMatrix = [a, b, c, d, e, f];
this.transformMatrix = _util.Util.transform(this.transformMatrix, transformMatrix);
this.tgrp = null;
}
getSVG(operatorList, viewport) {
this.viewport = viewport;
const svgElement = this._initialize(viewport);
return this.loadDependencies(operatorList).then(() => {
this.transformMatrix = _util.IDENTITY_MATRIX;
this.executeOpTree(this.convertOpList(operatorList));
return svgElement;
});
}
convertOpList(operatorList) {
const operatorIdMapping = this._operatorIdMapping;
const argsArray = operatorList.argsArray;
const fnArray = operatorList.fnArray;
const opList = [];
for (let i = 0, ii = fnArray.length; i < ii; i++) {
const fnId = fnArray[i];
opList.push({
fnId,
fn: operatorIdMapping[fnId],
args: argsArray[i]
});
}
return opListToTree(opList);
}
executeOpTree(opTree) {
for (const opTreeElement of opTree) {
const fn = opTreeElement.fn;
const fnId = opTreeElement.fnId;
const args = opTreeElement.args;
switch (fnId | 0) {
case _util.OPS.beginText:
this.beginText();
break;
case _util.OPS.dependency:
break;
case _util.OPS.setLeading:
this.setLeading(args);
break;
case _util.OPS.setLeadingMoveText:
this.setLeadingMoveText(args[0], args[1]);
break;
case _util.OPS.setFont:
this.setFont(args);
break;
case _util.OPS.showText:
this.showText(args[0]);
break;
case _util.OPS.showSpacedText:
this.showText(args[0]);
break;
case _util.OPS.endText:
this.endText();
break;
case _util.OPS.moveText:
this.moveText(args[0], args[1]);
break;
case _util.OPS.setCharSpacing:
this.setCharSpacing(args[0]);
break;
case _util.OPS.setWordSpacing:
this.setWordSpacing(args[0]);
break;
case _util.OPS.setHScale:
this.setHScale(args[0]);
break;
case _util.OPS.setTextMatrix:
this.setTextMatrix(args[0], args[1], args[2], args[3], args[4], args[5]);
break;
case _util.OPS.setTextRise:
this.setTextRise(args[0]);
break;
case _util.OPS.setTextRenderingMode:
this.setTextRenderingMode(args[0]);
break;
case _util.OPS.setLineWidth:
this.setLineWidth(args[0]);
break;
case _util.OPS.setLineJoin:
this.setLineJoin(args[0]);
break;
case _util.OPS.setLineCap:
this.setLineCap(args[0]);
break;
case _util.OPS.setMiterLimit:
this.setMiterLimit(args[0]);
break;
case _util.OPS.setFillRGBColor:
this.setFillRGBColor(args[0], args[1], args[2]);
break;
case _util.OPS.setStrokeRGBColor:
this.setStrokeRGBColor(args[0], args[1], args[2]);
break;
case _util.OPS.setStrokeColorN:
this.setStrokeColorN(args);
break;
case _util.OPS.setFillColorN:
this.setFillColorN(args);
break;
case _util.OPS.shadingFill:
this.shadingFill(args[0]);
break;
case _util.OPS.setDash:
this.setDash(args[0], args[1]);
break;
case _util.OPS.setRenderingIntent:
this.setRenderingIntent(args[0]);
break;
case _util.OPS.setFlatness:
this.setFlatness(args[0]);
break;
case _util.OPS.setGState:
this.setGState(args[0]);
break;
case _util.OPS.fill:
this.fill();
break;
case _util.OPS.eoFill:
this.eoFill();
break;
case _util.OPS.stroke:
this.stroke();
break;
case _util.OPS.fillStroke:
this.fillStroke();
break;
case _util.OPS.eoFillStroke:
this.eoFillStroke();
break;
case _util.OPS.clip:
this.clip("nonzero");
break;
case _util.OPS.eoClip:
this.clip("evenodd");
break;
case _util.OPS.paintSolidColorImageMask:
this.paintSolidColorImageMask();
break;
case _util.OPS.paintJpegXObject:
this.paintJpegXObject(args[0], args[1], args[2]);
break;
case _util.OPS.paintImageXObject:
this.paintImageXObject(args[0]);
break;
case _util.OPS.paintInlineImageXObject:
this.paintInlineImageXObject(args[0]);
break;
case _util.OPS.paintImageMaskXObject:
this.paintImageMaskXObject(args[0]);
break;
case _util.OPS.paintFormXObjectBegin:
this.paintFormXObjectBegin(args[0], args[1]);
break;
case _util.OPS.paintFormXObjectEnd:
this.paintFormXObjectEnd();
break;
case _util.OPS.closePath:
this.closePath();
break;
case _util.OPS.closeStroke:
this.closeStroke();
break;
case _util.OPS.closeFillStroke:
this.closeFillStroke();
break;
case _util.OPS.closeEOFillStroke:
this.closeEOFillStroke();
break;
case _util.OPS.nextLine:
this.nextLine();
break;
case _util.OPS.transform:
this.transform(args[0], args[1], args[2], args[3], args[4], args[5]);
break;
case _util.OPS.constructPath:
this.constructPath(args[0], args[1]);
break;
case _util.OPS.endPath:
this.endPath();
break;
case 92:
this.group(opTreeElement.items);
break;
default:
(0, _util.warn)(`Unimplemented operator ${fn}`);
break;
}
}
}
setWordSpacing(wordSpacing) {
this.current.wordSpacing = wordSpacing;
}
setCharSpacing(charSpacing) {
this.current.charSpacing = charSpacing;
}
nextLine() {
this.moveText(0, this.current.leading);
}
setTextMatrix(a, b, c, d, e, f) {
const current = this.current;
current.textMatrix = current.lineMatrix = [a, b, c, d, e, f];
current.textMatrixScale = Math.sqrt(a * a + b * b);
current.x = current.lineX = 0;
current.y = current.lineY = 0;
current.xcoords = [];
current.tspan = this.svgFactory.createElement("svg:tspan");
current.tspan.setAttributeNS(null, "font-family", current.fontFamily);
current.tspan.setAttributeNS(null, "font-size", `${pf(current.fontSize)}px`);
current.tspan.setAttributeNS(null, "y", pf(-current.y));
current.txtElement = this.svgFactory.createElement("svg:text");
current.txtElement.appendChild(current.tspan);
}
beginText() {
const current = this.current;
current.x = current.lineX = 0;
current.y = current.lineY = 0;
current.textMatrix = _util.IDENTITY_MATRIX;
current.lineMatrix = _util.IDENTITY_MATRIX;
current.textMatrixScale = 1;
current.tspan = this.svgFactory.createElement("svg:tspan");
current.txtElement = this.svgFactory.createElement("svg:text");
current.txtgrp = this.svgFactory.createElement("svg:g");
current.xcoords = [];
}
moveText(x, y) {
const current = this.current;
current.x = current.lineX += x;
current.y = current.lineY += y;
current.xcoords = [];
current.tspan = this.svgFactory.createElement("svg:tspan");
current.tspan.setAttributeNS(null, "font-family", current.fontFamily);
current.tspan.setAttributeNS(null, "font-size", `${pf(current.fontSize)}px`);
current.tspan.setAttributeNS(null, "y", pf(-current.y));
}
showText(glyphs) {
const current = this.current;
const font = current.font;
const fontSize = current.fontSize;
if (fontSize === 0) {
return;
}
const charSpacing = current.charSpacing;
const wordSpacing = current.wordSpacing;
const fontDirection = current.fontDirection;
const textHScale = current.textHScale * fontDirection;
const vertical = font.vertical;
const widthAdvanceScale = fontSize * current.fontMatrix[0];
let x = 0;
for (const glyph of glyphs) {
if (glyph === null) {
x += fontDirection * wordSpacing;
continue;
} else if ((0, _util.isNum)(glyph)) {
x += -glyph * fontSize * 0.001;
continue;
}
const width = glyph.width;
const character = glyph.fontChar;
const spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
const charWidth = width * widthAdvanceScale + spacing * fontDirection;
if (!glyph.isInFont && !font.missingFile) {
x += charWidth;
continue;
}
current.xcoords.push(current.x + x);
current.tspan.textContent += character;
x += charWidth;
}
if (vertical) {
current.y -= x * textHScale;
} else {
current.x += x * textHScale;
}
current.tspan.setAttributeNS(null, "x", current.xcoords.map(pf).join(" "));
current.tspan.setAttributeNS(null, "y", pf(-current.y));
current.tspan.setAttributeNS(null, "font-family", current.fontFamily);
current.tspan.setAttributeNS(null, "font-size", `${pf(current.fontSize)}px`);
if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
current.tspan.setAttributeNS(null, "font-style", current.fontStyle);
}
if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
current.tspan.setAttributeNS(null, "font-weight", current.fontWeight);
}
const fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
if (current.fillColor !== SVG_DEFAULTS.fillColor) {
current.tspan.setAttributeNS(null, "fill", current.fillColor);
}
if (current.fillAlpha < 1) {
current.tspan.setAttributeNS(null, "fill-opacity", current.fillAlpha);
}
} else if (current.textRenderingMode === _util.TextRenderingMode.ADD_TO_PATH) {
current.tspan.setAttributeNS(null, "fill", "transparent");
} else {
current.tspan.setAttributeNS(null, "fill", "none");
}
if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
const lineWidthScale = 1 / (current.textMatrixScale || 1);
this._setStrokeAttributes(current.tspan, lineWidthScale);
}
let textMatrix = current.textMatrix;
if (current.textRise !== 0) {
textMatrix = textMatrix.slice();
textMatrix[5] += current.textRise;
}
current.txtElement.setAttributeNS(null, "transform", `${pm(textMatrix)} scale(${pf(textHScale)}, -1)`);
current.txtElement.setAttributeNS(XML_NS, "xml:space", "preserve");
current.txtElement.appendChild(current.tspan);
current.txtgrp.appendChild(current.txtElement);
this._ensureTransformGroup().appendChild(current.txtElement);
}
setLeadingMoveText(x, y) {
this.setLeading(-y);
this.moveText(x, y);
}
addFontStyle(fontObj) {
if (!this.cssStyle) {
this.cssStyle = this.svgFactory.createElement("svg:style");
this.cssStyle.setAttributeNS(null, "type", "text/css");
this.defs.appendChild(this.cssStyle);
}
const url = (0, _util.createObjectURL)(fontObj.data, fontObj.mimetype, this.forceDataSchema);
this.cssStyle.textContent += `@font-face { font-family: "${fontObj.loadedName}";` + ` src: url(${url}); }\n`;
}
setFont(details) {
const current = this.current;
const fontObj = this.commonObjs.get(details[0]);
let size = details[1];
current.font = fontObj;
if (this.embedFonts && fontObj.data && !this.embeddedFonts[fontObj.loadedName]) {
this.addFontStyle(fontObj);
this.embeddedFonts[fontObj.loadedName] = fontObj;
}
current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
let bold = "normal";
if (fontObj.black) {
bold = "900";
} else if (fontObj.bold) {
bold = "bold";
}
const italic = fontObj.italic ? "italic" : "normal";
if (size < 0) {
size = -size;
current.fontDirection = -1;
} else {
current.fontDirection = 1;
}
current.fontSize = size;
current.fontFamily = fontObj.loadedName;
current.fontWeight = bold;
current.fontStyle = italic;
current.tspan = this.svgFactory.createElement("svg:tspan");
current.tspan.setAttributeNS(null, "y", pf(-current.y));
current.xcoords = [];
}
endText() {
const current = this.current;
if (current.textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG && current.txtElement && current.txtElement.hasChildNodes()) {
current.element = current.txtElement;
this.clip("nonzero");
this.endPath();
}
}
setLineWidth(width) {
if (width > 0) {
this.current.lineWidth = width;
}
}
setLineCap(style) {
this.current.lineCap = LINE_CAP_STYLES[style];
}
setLineJoin(style) {
this.current.lineJoin = LINE_JOIN_STYLES[style];
}
setMiterLimit(limit) {
this.current.miterLimit = limit;
}
setStrokeAlpha(strokeAlpha) {
this.current.strokeAlpha = strokeAlpha;
}
setStrokeRGBColor(r, g, b) {
this.current.strokeColor = _util.Util.makeCssRgb(r, g, b);
}
setFillAlpha(fillAlpha) {
this.current.fillAlpha = fillAlpha;
}
setFillRGBColor(r, g, b) {
this.current.fillColor = _util.Util.makeCssRgb(r, g, b);
this.current.tspan = this.svgFactory.createElement("svg:tspan");
this.current.xcoords = [];
}
setStrokeColorN(args) {
this.current.strokeColor = this._makeColorN_Pattern(args);
}
setFillColorN(args) {
this.current.fillColor = this._makeColorN_Pattern(args);
}
shadingFill(args) {
const width = this.viewport.width;
const height = this.viewport.height;
const inv = _util.Util.inverseTransform(this.transformMatrix);
const bl = _util.Util.applyTransform([0, 0], inv);
const br = _util.Util.applyTransform([0, height], inv);
const ul = _util.Util.applyTransform([width, 0], inv);
const ur = _util.Util.applyTransform([width, height], inv);
const x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
const y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
const x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
const y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
const rect = this.svgFactory.createElement("svg:rect");
rect.setAttributeNS(null, "x", x0);
rect.setAttributeNS(null, "y", y0);
rect.setAttributeNS(null, "width", x1 - x0);
rect.setAttributeNS(null, "height", y1 - y0);
rect.setAttributeNS(null, "fill", this._makeShadingPattern(args));
this._ensureTransformGroup().appendChild(rect);
}
_makeColorN_Pattern(args) {
if (args[0] === "TilingPattern") {
return this._makeTilingPattern(args);
}
return this._makeShadingPattern(args);
}
_makeTilingPattern(args) {
const color = args[1];
const operatorList = args[2];
const matrix = args[3] || _util.IDENTITY_MATRIX;
const [x0, y0, x1, y1] = args[4];
const xstep = args[5];
const ystep = args[6];
const paintType = args[7];
const tilingId = `shading${shadingCount++}`;
const [tx0, ty0] = _util.Util.applyTransform([x0, y0], matrix);
const [tx1, ty1] = _util.Util.applyTransform([x1, y1], matrix);
const [xscale, yscale] = _util.Util.singularValueDecompose2dScale(matrix);
const txstep = xstep * xscale;
const tystep = ystep * yscale;
const tiling = this.svgFactory.createElement("svg:pattern");
tiling.setAttributeNS(null, "id", tilingId);
tiling.setAttributeNS(null, "patternUnits", "userSpaceOnUse");
tiling.setAttributeNS(null, "width", txstep);
tiling.setAttributeNS(null, "height", tystep);
tiling.setAttributeNS(null, "x", `${tx0}`);
tiling.setAttributeNS(null, "y", `${ty0}`);
const svg = this.svg;
const transformMatrix = this.transformMatrix;
const fillColor = this.current.fillColor;
const strokeColor = this.current.strokeColor;
const bbox = this.svgFactory.create(tx1 - tx0, ty1 - ty0);
this.svg = bbox;
this.transformMatrix = matrix;
if (paintType === 2) {
const cssColor = _util.Util.makeCssRgb(...color);
this.current.fillColor = cssColor;
this.current.strokeColor = cssColor;
}
this.executeOpTree(this.convertOpList(operatorList));
this.svg = svg;
this.transformMatrix = transformMatrix;
this.current.fillColor = fillColor;
this.current.strokeColor = strokeColor;
tiling.appendChild(bbox.childNodes[0]);
this.defs.appendChild(tiling);
return `url(#${tilingId})`;
}
_makeShadingPattern(args) {
switch (args[0]) {
case "RadialAxial":
const shadingId = `shading${shadingCount++}`;
const colorStops = args[3];
let gradient;
switch (args[1]) {
case "axial":
const point0 = args[4];
const point1 = args[5];
gradient = this.svgFactory.createElement("svg:linearGradient");
gradient.setAttributeNS(null, "id", shadingId);
gradient.setAttributeNS(null, "gradientUnits", "userSpaceOnUse");
gradient.setAttributeNS(null, "x1", point0[0]);
gradient.setAttributeNS(null, "y1", point0[1]);
gradient.setAttributeNS(null, "x2", point1[0]);
gradient.setAttributeNS(null, "y2", point1[1]);
break;
case "radial":
const focalPoint = args[4];
const circlePoint = args[5];
const focalRadius = args[6];
const circleRadius = args[7];
gradient = this.svgFactory.createElement("svg:radialGradient");
gradient.setAttributeNS(null, "id", shadingId);
gradient.setAttributeNS(null, "gradientUnits", "userSpaceOnUse");
gradient.setAttributeNS(null, "cx", circlePoint[0]);
gradient.setAttributeNS(null, "cy", circlePoint[1]);
gradient.setAttributeNS(null, "r", circleRadius);
gradient.setAttributeNS(null, "fx", focalPoint[0]);
gradient.setAttributeNS(null, "fy", focalPoint[1]);
gradient.setAttributeNS(null, "fr", focalRadius);
break;
default:
throw new Error(`Unknown RadialAxial type: ${args[1]}`);
}
for (const colorStop of colorStops) {
const stop = this.svgFactory.createElement("svg:stop");
stop.setAttributeNS(null, "offset", colorStop[0]);
stop.setAttributeNS(null, "stop-color", colorStop[1]);
gradient.appendChild(stop);
}
this.defs.appendChild(gradient);
return `url(#${shadingId})`;
case "Mesh":
(0, _util.warn)("Unimplemented pattern Mesh");
return null;
case "Dummy":
return "hotpink";
default:
throw new Error(`Unknown IR type: ${args[0]}`);
}
}
setDash(dashArray, dashPhase) {
this.current.dashArray = dashArray;
this.current.dashPhase = dashPhase;
}
constructPath(ops, args) {
const current = this.current;
let x = current.x,
y = current.y;
let d = [];
let j = 0;
for (const op of ops) {
switch (op | 0) {
case _util.OPS.rectangle:
x = args[j++];
y = args[j++];
const width = args[j++];
const height = args[j++];
const xw = x + width;
const yh = y + height;
d.push("M", pf(x), pf(y), "L", pf(xw), pf(y), "L", pf(xw), pf(yh), "L", pf(x), pf(yh), "Z");
break;
case _util.OPS.moveTo:
x = args[j++];
y = args[j++];
d.push("M", pf(x), pf(y));
break;
case _util.OPS.lineTo:
x = args[j++];
y = args[j++];
d.push("L", pf(x), pf(y));
break;
case _util.OPS.curveTo:
x = args[j + 4];
y = args[j + 5];
d.push("C", pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]), pf(x), pf(y));
j += 6;
break;
case _util.OPS.curveTo2:
d.push("C", pf(x), pf(y), pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]));
x = args[j + 2];
y = args[j + 3];
j += 4;
break;
case _util.OPS.curveTo3:
x = args[j + 2];
y = args[j + 3];
d.push("C", pf(args[j]), pf(args[j + 1]), pf(x), pf(y), pf(x), pf(y));
j += 4;
break;
case _util.OPS.closePath:
d.push("Z");
break;
}
}
d = d.join(" ");
if (current.path && ops.length > 0 && ops[0] !== _util.OPS.rectangle && ops[0] !== _util.OPS.moveTo) {
d = current.path.getAttributeNS(null, "d") + d;
} else {
current.path = this.svgFactory.createElement("svg:path");
this._ensureTransformGroup().appendChild(current.path);
}
current.path.setAttributeNS(null, "d", d);
current.path.setAttributeNS(null, "fill", "none");
current.element = current.path;
current.setCurrentPoint(x, y);
}
endPath() {
const current = this.current;
current.path = null;
if (!this.pendingClip) {
return;
}
if (!current.element) {
this.pendingClip = null;
return;
}
const clipId = `clippath${clipCount++}`;
const clipPath = this.svgFactory.createElement("svg:clipPath");
clipPath.setAttributeNS(null, "id", clipId);
clipPath.setAttributeNS(null, "transform", pm(this.transformMatrix));
const clipElement = current.element.cloneNode(true);
if (this.pendingClip === "evenodd") {
clipElement.setAttributeNS(null, "clip-rule", "evenodd");
} else {
clipElement.setAttributeNS(null, "clip-rule", "nonzero");
}
this.pendingClip = null;
clipPath.appendChild(clipElement);
this.defs.appendChild(clipPath);
if (current.activeClipUrl) {
current.clipGroup = null;
this.extraStack.forEach(function (prev) {
prev.clipGroup = null;
});
clipPath.setAttributeNS(null, "clip-path", current.activeClipUrl);
}
current.activeClipUrl = `url(#${clipId})`;
this.tgrp = null;
}
clip(type) {
this.pendingClip = type;
}
closePath() {
const current = this.current;
if (current.path) {
const d = `${current.path.getAttributeNS(null, "d")}Z`;
current.path.setAttributeNS(null, "d", d);
}
}
setLeading(leading) {
this.current.leading = -leading;
}
setTextRise(textRise) {
this.current.textRise = textRise;
}
setTextRenderingMode(textRenderingMode) {
this.current.textRenderingMode = textRenderingMode;
}
setHScale(scale) {
this.current.textHScale = scale / 100;
}
setRenderingIntent(intent) {}
setFlatness(flatness) {}
setGState(states) {
for (const [key, value] of states) {
switch (key) {
case "LW":
this.setLineWidth(value);
break;
case "LC":
this.setLineCap(value);
break;
case "LJ":
this.setLineJoin(value);
break;
case "ML":
this.setMiterLimit(value);
break;
case "D":
this.setDash(value[0], value[1]);
break;
case "RI":
this.setRenderingIntent(value);
break;
case "FL":
this.setFlatness(value);
break;
case "Font":
this.setFont(value);
break;
case "CA":
this.setStrokeAlpha(value);
break;
case "ca":
this.setFillAlpha(value);
break;
default:
(0, _util.warn)(`Unimplemented graphic state operator ${key}`);
break;
}
}
}
fill() {
const current = this.current;
if (current.element) {
current.element.setAttributeNS(null, "fill", current.fillColor);
current.element.setAttributeNS(null, "fill-opacity", current.fillAlpha);
this.endPath();
}
}
stroke() {
const current = this.current;
if (current.element) {
this._setStrokeAttributes(current.element);
current.element.setAttributeNS(null, "fill", "none");
this.endPath();
}
}
_setStrokeAttributes(element, lineWidthScale = 1) {
const current = this.current;
let dashArray = current.dashArray;
if (lineWidthScale !== 1 && dashArray.length > 0) {
dashArray = dashArray.map(function (value) {
return lineWidthScale * value;
});
}
element.setAttributeNS(null, "stroke", current.strokeColor);
element.setAttributeNS(null, "stroke-opacity", current.strokeAlpha);
element.setAttributeNS(null, "stroke-miterlimit", pf(current.miterLimit));
element.setAttributeNS(null, "stroke-linecap", current.lineCap);
element.setAttributeNS(null, "stroke-linejoin", current.lineJoin);
element.setAttributeNS(null, "stroke-width", pf(lineWidthScale * current.lineWidth) + "px");
element.setAttributeNS(null, "stroke-dasharray", dashArray.map(pf).join(" "));
element.setAttributeNS(null, "stroke-dashoffset", pf(lineWidthScale * current.dashPhase) + "px");
}
eoFill() {
if (this.current.element) {
this.current.element.setAttributeNS(null, "fill-rule", "evenodd");
}
this.fill();
}
fillStroke() {
this.stroke();
this.fill();
}
eoFillStroke() {
if (this.current.element) {
this.current.element.setAttributeNS(null, "fill-rule", "evenodd");
}
this.fillStroke();
}
closeStroke() {
this.closePath();
this.stroke();
}
closeFillStroke() {
this.closePath();
this.fillStroke();
}
closeEOFillStroke() {
this.closePath();
this.eoFillStroke();
}
paintSolidColorImageMask() {
const rect = this.svgFactory.createElement("svg:rect");
rect.setAttributeNS(null, "x", "0");
rect.setAttributeNS(null, "y", "0");
rect.setAttributeNS(null, "width", "1px");
rect.setAttributeNS(null, "height", "1px");
rect.setAttributeNS(null, "fill", this.current.fillColor);
this._ensureTransformGroup().appendChild(rect);
}
paintJpegXObject(objId, w, h) {
const imgObj = this.objs.get(objId);
const imgEl = this.svgFactory.createElement("svg:image");
imgEl.setAttributeNS(XLINK_NS, "xlink:href", imgObj.src);
imgEl.setAttributeNS(null, "width", pf(w));
imgEl.setAttributeNS(null, "height", pf(h));
imgEl.setAttributeNS(null, "x", "0");
imgEl.setAttributeNS(null, "y", pf(-h));
imgEl.setAttributeNS(null, "transform", `scale(${pf(1 / w)} ${pf(-1 / h)})`);
this._ensureTransformGroup().appendChild(imgEl);
}
paintImageXObject(objId) {
const imgData = this.objs.get(objId);
if (!imgData) {
(0, _util.warn)(`Dependent image with object ID ${objId} is not ready yet`);
return;
}
this.paintInlineImageXObject(imgData);
}
paintInlineImageXObject(imgData, mask) {
const width = imgData.width;
const height = imgData.height;
const imgSrc = convertImgDataToPng(imgData, this.forceDataSchema, !!mask);
const cliprect = this.svgFactory.createElement("svg:rect");
cliprect.setAttributeNS(null, "x", "0");
cliprect.setAttributeNS(null, "y", "0");
cliprect.setAttributeNS(null, "width", pf(width));
cliprect.setAttributeNS(null, "height", pf(height));
this.current.element = cliprect;
this.clip("nonzero");
const imgEl = this.svgFactory.createElement("svg:image");
imgEl.setAttributeNS(XLINK_NS, "xlink:href", imgSrc);
imgEl.setAttributeNS(null, "x", "0");
imgEl.setAttributeNS(null, "y", pf(-height));
imgEl.setAttributeNS(null, "width", pf(width) + "px");
imgEl.setAttributeNS(null, "height", pf(height) + "px");
imgEl.setAttributeNS(null, "transform", `scale(${pf(1 / width)} ${pf(-1 / height)})`);
if (mask) {
mask.appendChild(imgEl);
} else {
this._ensureTransformGroup().appendChild(imgEl);
}
}
paintImageMaskXObject(imgData) {
const current = this.current;
const width = imgData.width;
const height = imgData.height;
const fillColor = current.fillColor;
current.maskId = `mask${maskCount++}`;
const mask = this.svgFactory.createElement("svg:mask");
mask.setAttributeNS(null, "id", current.maskId);
const rect = this.svgFactory.createElement("svg:rect");
rect.setAttributeNS(null, "x", "0");
rect.setAttributeNS(null, "y", "0");
rect.setAttributeNS(null, "width", pf(width));
rect.setAttributeNS(null, "height", pf(height));
rect.setAttributeNS(null, "fill", fillColor);
rect.setAttributeNS(null, "mask", `url(#${current.maskId})`);
this.defs.appendChild(mask);
this._ensureTransformGroup().appendChild(rect);
this.paintInlineImageXObject(imgData, mask);
}
paintFormXObjectBegin(matrix, bbox) {
if (Array.isArray(matrix) && matrix.length === 6) {
this.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
}
if (bbox) {
const width = bbox[2] - bbox[0];
const height = bbox[3] - bbox[1];
const cliprect = this.svgFactory.createElement("svg:rect");
cliprect.setAttributeNS(null, "x", bbox[0]);
cliprect.setAttributeNS(null, "y", bbox[1]);
cliprect.setAttributeNS(null, "width", pf(width));
cliprect.setAttributeNS(null, "height", pf(height));
this.current.element = cliprect;
this.clip("nonzero");
this.endPath();
}
}
paintFormXObjectEnd() {}
_initialize(viewport) {
const svg = this.svgFactory.create(viewport.width, viewport.height);
const definitions = this.svgFactory.createElement("svg:defs");
svg.appendChild(definitions);
this.defs = definitions;
const rootGroup = this.svgFactory.createElement("svg:g");
rootGroup.setAttributeNS(null, "transform", pm(viewport.transform));
svg.appendChild(rootGroup);
this.svg = rootGroup;
return svg;
}
_ensureClipGroup() {
if (!this.current.clipGroup) {
const clipGroup = this.svgFactory.createElement("svg:g");
clipGroup.setAttributeNS(null, "clip-path", this.current.activeClipUrl);
this.svg.appendChild(clipGroup);
this.current.clipGroup = clipGroup;
}
return this.current.clipGroup;
}
_ensureTransformGroup() {
if (!this.tgrp) {
this.tgrp = this.svgFactory.createElement("svg:g");
this.tgrp.setAttributeNS(null, "transform", pm(this.transformMatrix));
if (this.current.activeClipUrl) {
this._ensureClipGroup().appendChild(this.tgrp);
} else {
this.svg.appendChild(this.tgrp);
}
}
return this.tgrp;
}
};
}
/***/ }),
/* 19 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PDFNodeStream = void 0;
var _util = __w_pdfjs_require__(1);
var _network_utils = __w_pdfjs_require__(20);
const fs = require("fs");
const http = require("http");
const https = require("https");
const url = require("url");
const fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//;
function parseUrl(sourceUrl) {
const parsedUrl = url.parse(sourceUrl);
if (parsedUrl.protocol === "file:" || parsedUrl.host) {
return parsedUrl;
}
if (/^[a-z]:[/\\]/i.test(sourceUrl)) {
return url.parse(`file:///${sourceUrl}`);
}
if (!parsedUrl.host) {
parsedUrl.protocol = "file:";
}
return parsedUrl;
}
class PDFNodeStream {
constructor(source) {
this.source = source;
this.url = parseUrl(source.url);
this.isHttp = this.url.protocol === "http:" || this.url.protocol === "https:";
this.isFsUrl = this.url.protocol === "file:";
this.httpHeaders = this.isHttp && source.httpHeaders || {};
this._fullRequestReader = null;
this._rangeRequestReaders = [];
}
get _progressiveDataLength() {
return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
}
getFullReader() {
(0, _util.assert)(!this._fullRequestReader);
this._fullRequestReader = this.isFsUrl ? new PDFNodeStreamFsFullReader(this) : new PDFNodeStreamFullReader(this);
return this._fullRequestReader;
}
getRangeReader(start, end) {
if (end <= this._progressiveDataLength) {
return null;
}
const rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);
this._rangeRequestReaders.push(rangeReader);
return rangeReader;
}
cancelAllRequests(reason) {
if (this._fullRequestReader) {
this._fullRequestReader.cancel(reason);
}
const readers = this._rangeRequestReaders.slice(0);
readers.forEach(function (reader) {
reader.cancel(reason);
});
}
}
exports.PDFNodeStream = PDFNodeStream;
class BaseFullReader {
constructor(stream) {
this._url = stream.url;
this._done = false;
this._storedError = null;
this.onProgress = null;
const source = stream.source;
this._contentLength = source.length;
this._loaded = 0;
this._filename = null;
this._disableRange = source.disableRange || false;
this._rangeChunkSize = source.rangeChunkSize;
if (!this._rangeChunkSize && !this._disableRange) {
this._disableRange = true;
}
this._isStreamingSupported = !source.disableStream;
this._isRangeSupported = !source.disableRange;
this._readableStream = null;
this._readCapability = (0, _util.createPromiseCapability)();
this._headersCapability = (0, _util.createPromiseCapability)();
}
get headersReady() {
return this._headersCapability.promise;
}
get filename() {
return this._filename;
}
get contentLength() {
return this._contentLength;
}
get isRangeSupported() {
return this._isRangeSupported;
}
get isStreamingSupported() {
return this._isStreamingSupported;
}
async read() {
await this._readCapability.promise;
if (this._done) {
return {
value: undefined,
done: true
};
}
if (this._storedError) {
throw this._storedError;
}
const chunk = this._readableStream.read();
if (chunk === null) {
this._readCapability = (0, _util.createPromiseCapability)();
return this.read();
}
this._loaded += chunk.length;
if (this.onProgress) {
this.onProgress({
loaded: this._loaded,
total: this._contentLength
});
}
const buffer = new Uint8Array(chunk).buffer;
return {
value: buffer,
done: false
};
}
cancel(reason) {
if (!this._readableStream) {
this._error(reason);
return;
}
this._readableStream.destroy(reason);
}
_error(reason) {
this._storedError = reason;
this._readCapability.resolve();
}
_setReadableStream(readableStream) {
this._readableStream = readableStream;
readableStream.on("readable", () => {
this._readCapability.resolve();
});
readableStream.on("end", () => {
readableStream.destroy();
this._done = true;
this._readCapability.resolve();
});
readableStream.on("error", reason => {
this._error(reason);
});
if (!this._isStreamingSupported && this._isRangeSupported) {
this._error(new _util.AbortException("streaming is disabled"));
}
if (this._storedError) {
this._readableStream.destroy(this._storedError);
}
}
}
class BaseRangeReader {
constructor(stream) {
this._url = stream.url;
this._done = false;
this._storedError = null;
this.onProgress = null;
this._loaded = 0;
this._readableStream = null;
this._readCapability = (0, _util.createPromiseCapability)();
const source = stream.source;
this._isStreamingSupported = !source.disableStream;
}
get isStreamingSupported() {
return this._isStreamingSupported;
}
async read() {
await this._readCapability.promise;
if (this._done) {
return {
value: undefined,
done: true
};
}
if (this._storedError) {
throw this._storedError;
}
const chunk = this._readableStream.read();
if (chunk === null) {
this._readCapability = (0, _util.createPromiseCapability)();
return this.read();
}
this._loaded += chunk.length;
if (this.onProgress) {
this.onProgress({
loaded: this._loaded
});
}
const buffer = new Uint8Array(chunk).buffer;
return {
value: buffer,
done: false
};
}
cancel(reason) {
if (!this._readableStream) {
this._error(reason);
return;
}
this._readableStream.destroy(reason);
}
_error(reason) {
this._storedError = reason;
this._readCapability.resolve();
}
_setReadableStream(readableStream) {
this._readableStream = readableStream;
readableStream.on("readable", () => {
this._readCapability.resolve();
});
readableStream.on("end", () => {
readableStream.destroy();
this._done = true;
this._readCapability.resolve();
});
readableStream.on("error", reason => {
this._error(reason);
});
if (this._storedError) {
this._readableStream.destroy(this._storedError);
}
}
}
function createRequestOptions(url, headers) {
return {
protocol: url.protocol,
auth: url.auth,
host: url.hostname,
port: url.port,
path: url.path,
method: "GET",
headers
};
}
class PDFNodeStreamFullReader extends BaseFullReader {
constructor(stream) {
super(stream);
const handleResponse = response => {
if (response.statusCode === 404) {
const error = new _util.MissingPDFException(`Missing PDF "${this._url}".`);
this._storedError = error;
this._headersCapability.reject(error);
return;
}
this._headersCapability.resolve();
this._setReadableStream(response);
const getResponseHeader = name => {
return this._readableStream.headers[name.toLowerCase()];
};
const {
allowRangeRequests,
suggestedLength
} = (0, _network_utils.validateRangeRequestCapabilities)({
getResponseHeader,
isHttp: stream.isHttp,
rangeChunkSize: this._rangeChunkSize,
disableRange: this._disableRange
});
this._isRangeSupported = allowRangeRequests;
this._contentLength = suggestedLength || this._contentLength;
this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
};
this._request = null;
if (this._url.protocol === "http:") {
this._request = http.request(createRequestOptions(this._url, stream.httpHeaders), handleResponse);
} else {
this._request = https.request(createRequestOptions(this._url, stream.httpHeaders), handleResponse);
}
this._request.on("error", reason => {
this._storedError = reason;
this._headersCapability.reject(reason);
});
this._request.end();
}
}
class PDFNodeStreamRangeReader extends BaseRangeReader {
constructor(stream, start, end) {
super(stream);
this._httpHeaders = {};
for (const property in stream.httpHeaders) {
const value = stream.httpHeaders[property];
if (typeof value === "undefined") {
continue;
}
this._httpHeaders[property] = value;
}
this._httpHeaders["Range"] = `bytes=${start}-${end - 1}`;
const handleResponse = response => {
if (response.statusCode === 404) {
const error = new _util.MissingPDFException(`Missing PDF "${this._url}".`);
this._storedError = error;
return;
}
this._setReadableStream(response);
};
this._request = null;
if (this._url.protocol === "http:") {
this._request = http.request(createRequestOptions(this._url, this._httpHeaders), handleResponse);
} else {
this._request = https.request(createRequestOptions(this._url, this._httpHeaders), handleResponse);
}
this._request.on("error", reason => {
this._storedError = reason;
});
this._request.end();
}
}
class PDFNodeStreamFsFullReader extends BaseFullReader {
constructor(stream) {
super(stream);
let path = decodeURIComponent(this._url.path);
if (fileUriRegex.test(this._url.href)) {
path = path.replace(/^\//, "");
}
fs.lstat(path, (error, stat) => {
if (error) {
if (error.code === "ENOENT") {
error = new _util.MissingPDFException(`Missing PDF "${path}".`);
}
this._storedError = error;
this._headersCapability.reject(error);
return;
}
this._contentLength = stat.size;
this._setReadableStream(fs.createReadStream(path));
this._headersCapability.resolve();
});
}
}
class PDFNodeStreamFsRangeReader extends BaseRangeReader {
constructor(stream, start, end) {
super(stream);
let path = decodeURIComponent(this._url.path);
if (fileUriRegex.test(this._url.href)) {
path = path.replace(/^\//, "");
}
this._setReadableStream(fs.createReadStream(path, {
start,
end: end - 1
}));
}
}
/***/ }),
/* 20 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.createResponseStatusError = createResponseStatusError;
exports.extractFilenameFromHeader = extractFilenameFromHeader;
exports.validateRangeRequestCapabilities = validateRangeRequestCapabilities;
exports.validateResponseStatus = validateResponseStatus;
var _util = __w_pdfjs_require__(1);
var _content_disposition = __w_pdfjs_require__(21);
function validateRangeRequestCapabilities({
getResponseHeader,
isHttp,
rangeChunkSize,
disableRange
}) {
(0, _util.assert)(rangeChunkSize > 0, "Range chunk size must be larger than zero");
const returnValues = {
allowRangeRequests: false,
suggestedLength: undefined
};
const length = parseInt(getResponseHeader("Content-Length"), 10);
if (!Number.isInteger(length)) {
return returnValues;
}
returnValues.suggestedLength = length;
if (length <= 2 * rangeChunkSize) {
return returnValues;
}
if (disableRange || !isHttp) {
return returnValues;
}
if (getResponseHeader("Accept-Ranges") !== "bytes") {
return returnValues;
}
const contentEncoding = getResponseHeader("Content-Encoding") || "identity";
if (contentEncoding !== "identity") {
return returnValues;
}
returnValues.allowRangeRequests = true;
return returnValues;
}
function extractFilenameFromHeader(getResponseHeader) {
const contentDisposition = getResponseHeader("Content-Disposition");
if (contentDisposition) {
let filename = (0, _content_disposition.getFilenameFromContentDispositionHeader)(contentDisposition);
if (filename.includes("%")) {
try {
filename = decodeURIComponent(filename);
} catch (ex) {}
}
if (/\.pdf$/i.test(filename)) {
return filename;
}
}
return null;
}
function createResponseStatusError(status, url) {
if (status === 404 || status === 0 && url.startsWith("file:")) {
return new _util.MissingPDFException('Missing PDF "' + url + '".');
}
return new _util.UnexpectedResponseException("Unexpected server response (" + status + ') while retrieving PDF "' + url + '".', status);
}
function validateResponseStatus(status) {
return status === 200 || status === 206;
}
/***/ }),
/* 21 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getFilenameFromContentDispositionHeader = getFilenameFromContentDispositionHeader;
function getFilenameFromContentDispositionHeader(contentDisposition) {
let needsEncodingFixup = true;
let tmp = toParamRegExp("filename\\*", "i").exec(contentDisposition);
if (tmp) {
tmp = tmp[1];
let filename = rfc2616unquote(tmp);
filename = unescape(filename);
filename = rfc5987decode(filename);
filename = rfc2047decode(filename);
return fixupEncoding(filename);
}
tmp = rfc2231getparam(contentDisposition);
if (tmp) {
const filename = rfc2047decode(tmp);
return fixupEncoding(filename);
}
tmp = toParamRegExp("filename", "i").exec(contentDisposition);
if (tmp) {
tmp = tmp[1];
let filename = rfc2616unquote(tmp);
filename = rfc2047decode(filename);
return fixupEncoding(filename);
}
function toParamRegExp(attributePattern, flags) {
return new RegExp("(?:^|;)\\s*" + attributePattern + "\\s*=\\s*" + "(" + '[^";\\s][^;\\s]*' + "|" + '"(?:[^"\\\\]|\\\\"?)+"?' + ")", flags);
}
function textdecode(encoding, value) {
if (encoding) {
if (!/^[\x00-\xFF]+$/.test(value)) {
return value;
}
try {
const decoder = new TextDecoder(encoding, {
fatal: true
});
const bytes = Array.from(value, function (ch) {
return ch.charCodeAt(0) & 0xff;
});
value = decoder.decode(new Uint8Array(bytes));
needsEncodingFixup = false;
} catch (e) {
if (/^utf-?8$/i.test(encoding)) {
try {
value = decodeURIComponent(escape(value));
needsEncodingFixup = false;
} catch (err) {}
}
}
}
return value;
}
function fixupEncoding(value) {
if (needsEncodingFixup && /[\x80-\xff]/.test(value)) {
value = textdecode("utf-8", value);
if (needsEncodingFixup) {
value = textdecode("iso-8859-1", value);
}
}
return value;
}
function rfc2231getparam(contentDisposition) {
const matches = [];
let match;
const iter = toParamRegExp("filename\\*((?!0\\d)\\d+)(\\*?)", "ig");
while ((match = iter.exec(contentDisposition)) !== null) {
let [, n, quot, part] = match;
n = parseInt(n, 10);
if (n in matches) {
if (n === 0) {
break;
}
continue;
}
matches[n] = [quot, part];
}
const parts = [];
for (let n = 0; n < matches.length; ++n) {
if (!(n in matches)) {
break;
}
let [quot, part] = matches[n];
part = rfc2616unquote(part);
if (quot) {
part = unescape(part);
if (n === 0) {
part = rfc5987decode(part);
}
}
parts.push(part);
}
return parts.join("");
}
function rfc2616unquote(value) {
if (value.startsWith('"')) {
const parts = value.slice(1).split('\\"');
for (let i = 0; i < parts.length; ++i) {
const quotindex = parts[i].indexOf('"');
if (quotindex !== -1) {
parts[i] = parts[i].slice(0, quotindex);
parts.length = i + 1;
}
parts[i] = parts[i].replace(/\\(.)/g, "$1");
}
value = parts.join('"');
}
return value;
}
function rfc5987decode(extvalue) {
const encodingend = extvalue.indexOf("'");
if (encodingend === -1) {
return extvalue;
}
const encoding = extvalue.slice(0, encodingend);
const langvalue = extvalue.slice(encodingend + 1);
const value = langvalue.replace(/^[^']*'/, "");
return textdecode(encoding, value);
}
function rfc2047decode(value) {
if (!value.startsWith("=?") || /[\x00-\x19\x80-\xff]/.test(value)) {
return value;
}
return value.replace(/=\?([\w-]*)\?([QqBb])\?((?:[^?]|\?(?!=))*)\?=/g, function (_, charset, encoding, text) {
if (encoding === "q" || encoding === "Q") {
text = text.replace(/_/g, " ");
text = text.replace(/=([0-9a-fA-F]{2})/g, function (_, hex) {
return String.fromCharCode(parseInt(hex, 16));
});
return textdecode(charset, text);
}
try {
text = atob(text);
} catch (e) {}
return textdecode(charset, text);
});
}
return "";
}
/***/ }),
/* 22 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PDFNetworkStream = void 0;
var _util = __w_pdfjs_require__(1);
var _network_utils = __w_pdfjs_require__(20);
;
const OK_RESPONSE = 200;
const PARTIAL_CONTENT_RESPONSE = 206;
function getArrayBuffer(xhr) {
const data = xhr.response;
if (typeof data !== "string") {
return data;
}
const array = (0, _util.stringToBytes)(data);
return array.buffer;
}
class NetworkManager {
constructor(url, args) {
this.url = url;
args = args || {};
this.isHttp = /^https?:/i.test(url);
this.httpHeaders = this.isHttp && args.httpHeaders || {};
this.withCredentials = args.withCredentials || false;
this.getXhr = args.getXhr || function NetworkManager_getXhr() {
return new XMLHttpRequest();
};
this.currXhrId = 0;
this.pendingRequests = Object.create(null);
}
requestRange(begin, end, listeners) {
const args = {
begin,
end
};
for (const prop in listeners) {
args[prop] = listeners[prop];
}
return this.request(args);
}
requestFull(listeners) {
return this.request(listeners);
}
request(args) {
const xhr = this.getXhr();
const xhrId = this.currXhrId++;
const pendingRequest = this.pendingRequests[xhrId] = {
xhr
};
xhr.open("GET", this.url);
xhr.withCredentials = this.withCredentials;
for (const property in this.httpHeaders) {
const value = this.httpHeaders[property];
if (typeof value === "undefined") {
continue;
}
xhr.setRequestHeader(property, value);
}
if (this.isHttp && "begin" in args && "end" in args) {
xhr.setRequestHeader("Range", `bytes=${args.begin}-${args.end - 1}`);
pendingRequest.expectedStatus = PARTIAL_CONTENT_RESPONSE;
} else {
pendingRequest.expectedStatus = OK_RESPONSE;
}
xhr.responseType = "arraybuffer";
if (args.onError) {
xhr.onerror = function (evt) {
args.onError(xhr.status);
};
}
xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
xhr.onprogress = this.onProgress.bind(this, xhrId);
pendingRequest.onHeadersReceived = args.onHeadersReceived;
pendingRequest.onDone = args.onDone;
pendingRequest.onError = args.onError;
pendingRequest.onProgress = args.onProgress;
xhr.send(null);
return xhrId;
}
onProgress(xhrId, evt) {
const pendingRequest = this.pendingRequests[xhrId];
if (!pendingRequest) {
return;
}
if (pendingRequest.onProgress) {
pendingRequest.onProgress(evt);
}
}
onStateChange(xhrId, evt) {
const pendingRequest = this.pendingRequests[xhrId];
if (!pendingRequest) {
return;
}
const xhr = pendingRequest.xhr;
if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
pendingRequest.onHeadersReceived();
delete pendingRequest.onHeadersReceived;
}
if (xhr.readyState !== 4) {
return;
}
if (!(xhrId in this.pendingRequests)) {
return;
}
delete this.pendingRequests[xhrId];
if (xhr.status === 0 && this.isHttp) {
if (pendingRequest.onError) {
pendingRequest.onError(xhr.status);
}
return;
}
const xhrStatus = xhr.status || OK_RESPONSE;
const ok_response_on_range_request = xhrStatus === OK_RESPONSE && pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;
if (!ok_response_on_range_request && xhrStatus !== pendingRequest.expectedStatus) {
if (pendingRequest.onError) {
pendingRequest.onError(xhr.status);
}
return;
}
const chunk = getArrayBuffer(xhr);
if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
const rangeHeader = xhr.getResponseHeader("Content-Range");
const matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
pendingRequest.onDone({
begin: parseInt(matches[1], 10),
chunk
});
} else if (chunk) {
pendingRequest.onDone({
begin: 0,
chunk
});
} else if (pendingRequest.onError) {
pendingRequest.onError(xhr.status);
}
}
hasPendingRequests() {
for (const xhrId in this.pendingRequests) {
return true;
}
return false;
}
getRequestXhr(xhrId) {
return this.pendingRequests[xhrId].xhr;
}
isPendingRequest(xhrId) {
return xhrId in this.pendingRequests;
}
abortAllRequests() {
for (const xhrId in this.pendingRequests) {
this.abortRequest(xhrId | 0);
}
}
abortRequest(xhrId) {
const xhr = this.pendingRequests[xhrId].xhr;
delete this.pendingRequests[xhrId];
xhr.abort();
}
}
class PDFNetworkStream {
constructor(source) {
this._source = source;
this._manager = new NetworkManager(source.url, {
httpHeaders: source.httpHeaders,
withCredentials: source.withCredentials
});
this._rangeChunkSize = source.rangeChunkSize;
this._fullRequestReader = null;
this._rangeRequestReaders = [];
}
_onRangeRequestReaderClosed(reader) {
const i = this._rangeRequestReaders.indexOf(reader);
if (i >= 0) {
this._rangeRequestReaders.splice(i, 1);
}
}
getFullReader() {
(0, _util.assert)(!this._fullRequestReader);
this._fullRequestReader = new PDFNetworkStreamFullRequestReader(this._manager, this._source);
return this._fullRequestReader;
}
getRangeReader(begin, end) {
const reader = new PDFNetworkStreamRangeRequestReader(this._manager, begin, end);
reader.onClosed = this._onRangeRequestReaderClosed.bind(this);
this._rangeRequestReaders.push(reader);
return reader;
}
cancelAllRequests(reason) {
if (this._fullRequestReader) {
this._fullRequestReader.cancel(reason);
}
const readers = this._rangeRequestReaders.slice(0);
readers.forEach(function (reader) {
reader.cancel(reason);
});
}
}
exports.PDFNetworkStream = PDFNetworkStream;
class PDFNetworkStreamFullRequestReader {
constructor(manager, source) {
this._manager = manager;
const args = {
onHeadersReceived: this._onHeadersReceived.bind(this),
onDone: this._onDone.bind(this),
onError: this._onError.bind(this),
onProgress: this._onProgress.bind(this)
};
this._url = source.url;
this._fullRequestId = manager.requestFull(args);
this._headersReceivedCapability = (0, _util.createPromiseCapability)();
this._disableRange = source.disableRange || false;
this._contentLength = source.length;
this._rangeChunkSize = source.rangeChunkSize;
if (!this._rangeChunkSize && !this._disableRange) {
this._disableRange = true;
}
this._isStreamingSupported = false;
this._isRangeSupported = false;
this._cachedChunks = [];
this._requests = [];
this._done = false;
this._storedError = undefined;
this._filename = null;
this.onProgress = null;
}
_onHeadersReceived() {
const fullRequestXhrId = this._fullRequestId;
const fullRequestXhr = this._manager.getRequestXhr(fullRequestXhrId);
const getResponseHeader = name => {
return fullRequestXhr.getResponseHeader(name);
};
const {
allowRangeRequests,
suggestedLength
} = (0, _network_utils.validateRangeRequestCapabilities)({
getResponseHeader,
isHttp: this._manager.isHttp,
rangeChunkSize: this._rangeChunkSize,
disableRange: this._disableRange
});
if (allowRangeRequests) {
this._isRangeSupported = true;
}
this._contentLength = suggestedLength || this._contentLength;
this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
if (this._isRangeSupported) {
this._manager.abortRequest(fullRequestXhrId);
}
this._headersReceivedCapability.resolve();
}
_onDone(args) {
if (args) {
if (this._requests.length > 0) {
const requestCapability = this._requests.shift();
requestCapability.resolve({
value: args.chunk,
done: false
});
} else {
this._cachedChunks.push(args.chunk);
}
}
this._done = true;
if (this._cachedChunks.length > 0) {
return;
}
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
}
_onError(status) {
const url = this._url;
const exception = (0, _network_utils.createResponseStatusError)(status, url);
this._storedError = exception;
this._headersReceivedCapability.reject(exception);
this._requests.forEach(function (requestCapability) {
requestCapability.reject(exception);
});
this._requests = [];
this._cachedChunks = [];
}
_onProgress(data) {
if (this.onProgress) {
this.onProgress({
loaded: data.loaded,
total: data.lengthComputable ? data.total : this._contentLength
});
}
}
get filename() {
return this._filename;
}
get isRangeSupported() {
return this._isRangeSupported;
}
get isStreamingSupported() {
return this._isStreamingSupported;
}
get contentLength() {
return this._contentLength;
}
get headersReady() {
return this._headersReceivedCapability.promise;
}
async read() {
if (this._storedError) {
throw this._storedError;
}
if (this._cachedChunks.length > 0) {
const chunk = this._cachedChunks.shift();
return {
value: chunk,
done: false
};
}
if (this._done) {
return {
value: undefined,
done: true
};
}
const requestCapability = (0, _util.createPromiseCapability)();
this._requests.push(requestCapability);
return requestCapability.promise;
}
cancel(reason) {
this._done = true;
this._headersReceivedCapability.reject(reason);
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
if (this._manager.isPendingRequest(this._fullRequestId)) {
this._manager.abortRequest(this._fullRequestId);
}
this._fullRequestReader = null;
}
}
class PDFNetworkStreamRangeRequestReader {
constructor(manager, begin, end) {
this._manager = manager;
const args = {
onDone: this._onDone.bind(this),
onProgress: this._onProgress.bind(this)
};
this._requestId = manager.requestRange(begin, end, args);
this._requests = [];
this._queuedChunk = null;
this._done = false;
this.onProgress = null;
this.onClosed = null;
}
_close() {
if (this.onClosed) {
this.onClosed(this);
}
}
_onDone(data) {
const chunk = data.chunk;
if (this._requests.length > 0) {
const requestCapability = this._requests.shift();
requestCapability.resolve({
value: chunk,
done: false
});
} else {
this._queuedChunk = chunk;
}
this._done = true;
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
this._close();
}
_onProgress(evt) {
if (!this.isStreamingSupported && this.onProgress) {
this.onProgress({
loaded: evt.loaded
});
}
}
get isStreamingSupported() {
return false;
}
async read() {
if (this._queuedChunk !== null) {
const chunk = this._queuedChunk;
this._queuedChunk = null;
return {
value: chunk,
done: false
};
}
if (this._done) {
return {
value: undefined,
done: true
};
}
const requestCapability = (0, _util.createPromiseCapability)();
this._requests.push(requestCapability);
return requestCapability.promise;
}
cancel(reason) {
this._done = true;
this._requests.forEach(function (requestCapability) {
requestCapability.resolve({
value: undefined,
done: true
});
});
this._requests = [];
if (this._manager.isPendingRequest(this._requestId)) {
this._manager.abortRequest(this._requestId);
}
this._close();
}
}
/***/ }),
/* 23 */
/***/ (function(module, exports, __w_pdfjs_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PDFFetchStream = void 0;
var _util = __w_pdfjs_require__(1);
var _network_utils = __w_pdfjs_require__(20);
function createFetchOptions(headers, withCredentials, abortController) {
return {
method: "GET",
headers,
signal: abortController && abortController.signal,
mode: "cors",
credentials: withCredentials ? "include" : "same-origin",
redirect: "follow"
};
}
function createHeaders(httpHeaders) {
const headers = new Headers();
for (const property in httpHeaders) {
const value = httpHeaders[property];
if (typeof value === "undefined") {
continue;
}
headers.append(property, value);
}
return headers;
}
class PDFFetchStream {
constructor(source) {
this.source = source;
this.isHttp = /^https?:/i.test(source.url);
this.httpHeaders = this.isHttp && source.httpHeaders || {};
this._fullRequestReader = null;
this._rangeRequestReaders = [];
}
get _progressiveDataLength() {
return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
}
getFullReader() {
(0, _util.assert)(!this._fullRequestReader);
this._fullRequestReader = new PDFFetchStreamReader(this);
return this._fullRequestReader;
}
getRangeReader(begin, end) {
if (end <= this._progressiveDataLength) {
return null;
}
const reader = new PDFFetchStreamRangeReader(this, begin, end);
this._rangeRequestReaders.push(reader);
return reader;
}
cancelAllRequests(reason) {
if (this._fullRequestReader) {
this._fullRequestReader.cancel(reason);
}
const readers = this._rangeRequestReaders.slice(0);
readers.forEach(function (reader) {
reader.cancel(reason);
});
}
}
exports.PDFFetchStream = PDFFetchStream;
class PDFFetchStreamReader {
constructor(stream) {
this._stream = stream;
this._reader = null;
this._loaded = 0;
this._filename = null;
const source = stream.source;
this._withCredentials = source.withCredentials || false;
this._contentLength = source.length;
this._headersCapability = (0, _util.createPromiseCapability)();
this._disableRange = source.disableRange || false;
this._rangeChunkSize = source.rangeChunkSize;
if (!this._rangeChunkSize && !this._disableRange) {
this._disableRange = true;
}
if (typeof AbortController !== "undefined") {
this._abortController = new AbortController();
}
this._isStreamingSupported = !source.disableStream;
this._isRangeSupported = !source.disableRange;
this._headers = createHeaders(this._stream.httpHeaders);
const url = source.url;
fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(response => {
if (!(0, _network_utils.validateResponseStatus)(response.status)) {
throw (0, _network_utils.createResponseStatusError)(response.status, url);
}
this._reader = response.body.getReader();
this._headersCapability.resolve();
const getResponseHeader = name => {
return response.headers.get(name);
};
const {
allowRangeRequests,
suggestedLength
} = (0, _network_utils.validateRangeRequestCapabilities)({
getResponseHeader,
isHttp: this._stream.isHttp,
rangeChunkSize: this._rangeChunkSize,
disableRange: this._disableRange
});
this._isRangeSupported = allowRangeRequests;
this._contentLength = suggestedLength || this._contentLength;
this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
if (!this._isStreamingSupported && this._isRangeSupported) {
this.cancel(new _util.AbortException("Streaming is disabled."));
}
}).catch(this._headersCapability.reject);
this.onProgress = null;
}
get headersReady() {
return this._headersCapability.promise;
}
get filename() {
return this._filename;
}
get contentLength() {
return this._contentLength;
}
get isRangeSupported() {
return this._isRangeSupported;
}
get isStreamingSupported() {
return this._isStreamingSupported;
}
async read() {
await this._headersCapability.promise;
const {
value,
done
} = await this._reader.read();
if (done) {
return {
value,
done
};
}
this._loaded += value.byteLength;
if (this.onProgress) {
this.onProgress({
loaded: this._loaded,
total: this._contentLength
});
}
const buffer = new Uint8Array(value).buffer;
return {
value: buffer,
done: false
};
}
cancel(reason) {
if (this._reader) {
this._reader.cancel(reason);
}
if (this._abortController) {
this._abortController.abort();
}
}
}
class PDFFetchStreamRangeReader {
constructor(stream, begin, end) {
this._stream = stream;
this._reader = null;
this._loaded = 0;
const source = stream.source;
this._withCredentials = source.withCredentials || false;
this._readCapability = (0, _util.createPromiseCapability)();
this._isStreamingSupported = !source.disableStream;
if (typeof AbortController !== "undefined") {
this._abortController = new AbortController();
}
this._headers = createHeaders(this._stream.httpHeaders);
this._headers.append("Range", `bytes=${begin}-${end - 1}`);
const url = source.url;
fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(response => {
if (!(0, _network_utils.validateResponseStatus)(response.status)) {
throw (0, _network_utils.createResponseStatusError)(response.status, url);
}
this._readCapability.resolve();
this._reader = response.body.getReader();
});
this.onProgress = null;
}
get isStreamingSupported() {
return this._isStreamingSupported;
}
async read() {
await this._readCapability.promise;
const {
value,
done
} = await this._reader.read();
if (done) {
return {
value,
done
};
}
this._loaded += value.byteLength;
if (this.onProgress) {
this.onProgress({
loaded: this._loaded
});
}
const buffer = new Uint8Array(value).buffer;
return {
value: buffer,
done: false
};
}
cancel(reason) {
if (this._reader) {
this._reader.cancel(reason);
}
if (this._abortController) {
this._abortController.abort();
}
}
}
/***/ })
/******/ ]);
});
//# sourceMappingURL=pdf.js.map