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21 |
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22 | "use strict";
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23 |
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24 | Object.defineProperty(exports, "__esModule", {
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25 | value: true
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26 | });
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27 | exports.WorkerTask = exports.WorkerMessageHandler = void 0;
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28 |
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29 | var _util = require("../shared/util.js");
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30 |
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31 | var _primitives = require("./primitives.js");
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32 |
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33 | var _core_utils = require("./core_utils.js");
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34 |
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35 | var _pdf_manager = require("./pdf_manager.js");
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36 |
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37 | var _cleanup_helper = require("./cleanup_helper.js");
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38 |
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39 | var _writer = require("./writer.js");
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40 |
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41 | var _is_node = require("../shared/is_node.js");
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42 |
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43 | var _message_handler = require("../shared/message_handler.js");
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44 |
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45 | var _worker_stream = require("./worker_stream.js");
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46 |
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47 | class WorkerTask {
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48 | constructor(name) {
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49 | this.name = name;
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50 | this.terminated = false;
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51 | this._capability = (0, _util.createPromiseCapability)();
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52 | }
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53 |
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54 | get finished() {
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55 | return this._capability.promise;
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56 | }
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57 |
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58 | finish() {
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59 | this._capability.resolve();
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60 | }
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61 |
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62 | terminate() {
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63 | this.terminated = true;
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64 | }
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65 |
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66 | ensureNotTerminated() {
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67 | if (this.terminated) {
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68 | throw new Error("Worker task was terminated");
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69 | }
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70 | }
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71 |
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72 | }
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73 |
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74 | exports.WorkerTask = WorkerTask;
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75 |
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76 | class WorkerMessageHandler {
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77 | static setup(handler, port) {
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78 | let testMessageProcessed = false;
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79 | handler.on("test", function wphSetupTest(data) {
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80 | if (testMessageProcessed) {
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81 | return;
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82 | }
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83 |
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84 | testMessageProcessed = true;
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85 | handler.send("test", data instanceof Uint8Array);
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86 | });
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87 | handler.on("configure", function wphConfigure(data) {
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88 | (0, _util.setVerbosityLevel)(data.verbosity);
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89 | });
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90 | handler.on("GetDocRequest", function wphSetupDoc(data) {
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91 | return WorkerMessageHandler.createDocumentHandler(data, port);
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92 | });
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93 | }
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94 |
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95 | static createDocumentHandler(docParams, port) {
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96 | let pdfManager;
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97 | let terminated = false;
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98 | let cancelXHRs = null;
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99 | const WorkerTasks = [];
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100 | const verbosity = (0, _util.getVerbosityLevel)();
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101 | const apiVersion = docParams.apiVersion;
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102 | const workerVersion = '2.15.349';
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103 |
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104 | if (apiVersion !== workerVersion) {
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105 | throw new Error(`The API version "${apiVersion}" does not match ` + `the Worker version "${workerVersion}".`);
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106 | }
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107 |
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108 | const enumerableProperties = [];
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109 |
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110 | for (const property in []) {
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111 | enumerableProperties.push(property);
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112 | }
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113 |
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114 | if (enumerableProperties.length) {
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115 | throw new Error("The `Array.prototype` contains unexpected enumerable properties: " + enumerableProperties.join(", ") + "; thus breaking e.g. `for...in` iteration of `Array`s.");
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116 | }
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117 |
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118 | if (typeof ReadableStream === "undefined") {
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119 | const partialMsg = "The browser/environment lacks native support for critical " + "functionality used by the PDF.js library (e.g. `ReadableStream`); ";
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120 |
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121 | if (_is_node.isNodeJS) {
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122 | throw new Error(partialMsg + "please use a `legacy`-build instead.");
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123 | }
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124 |
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125 | throw new Error(partialMsg + "please update to a supported browser.");
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126 | }
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127 |
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128 | const docId = docParams.docId;
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129 | const docBaseUrl = docParams.docBaseUrl;
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130 | const workerHandlerName = docParams.docId + "_worker";
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131 | let handler = new _message_handler.MessageHandler(workerHandlerName, docId, port);
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132 |
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133 | function ensureNotTerminated() {
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134 | if (terminated) {
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135 | throw new Error("Worker was terminated");
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136 | }
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137 | }
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138 |
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139 | function startWorkerTask(task) {
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140 | WorkerTasks.push(task);
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141 | }
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142 |
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143 | function finishWorkerTask(task) {
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144 | task.finish();
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145 | const i = WorkerTasks.indexOf(task);
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146 | WorkerTasks.splice(i, 1);
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147 | }
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148 |
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149 | async function loadDocument(recoveryMode) {
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150 | await pdfManager.ensureDoc("checkHeader");
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151 | await pdfManager.ensureDoc("parseStartXRef");
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152 | await pdfManager.ensureDoc("parse", [recoveryMode]);
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153 | await pdfManager.ensureDoc("checkFirstPage", [recoveryMode]);
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154 | await pdfManager.ensureDoc("checkLastPage", [recoveryMode]);
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155 | const isPureXfa = await pdfManager.ensureDoc("isPureXfa");
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156 |
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157 | if (isPureXfa) {
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158 | const task = new WorkerTask("loadXfaFonts");
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159 | startWorkerTask(task);
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160 | await Promise.all([pdfManager.loadXfaFonts(handler, task).catch(reason => {}).then(() => finishWorkerTask(task)), pdfManager.loadXfaImages()]);
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161 | }
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162 |
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163 | const [numPages, fingerprints] = await Promise.all([pdfManager.ensureDoc("numPages"), pdfManager.ensureDoc("fingerprints")]);
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164 | const htmlForXfa = isPureXfa ? await pdfManager.ensureDoc("htmlForXfa") : null;
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165 | return {
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166 | numPages,
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167 | fingerprints,
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168 | htmlForXfa
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169 | };
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170 | }
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171 |
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172 | function getPdfManager(data, evaluatorOptions, enableXfa) {
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173 | const pdfManagerCapability = (0, _util.createPromiseCapability)();
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174 | let newPdfManager;
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175 | const source = data.source;
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176 |
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177 | if (source.data) {
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178 | try {
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179 | newPdfManager = new _pdf_manager.LocalPdfManager(docId, source.data, source.password, handler, evaluatorOptions, enableXfa, docBaseUrl);
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180 | pdfManagerCapability.resolve(newPdfManager);
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181 | } catch (ex) {
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182 | pdfManagerCapability.reject(ex);
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183 | }
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184 |
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185 | return pdfManagerCapability.promise;
|
186 | }
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187 |
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188 | let pdfStream,
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189 | cachedChunks = [];
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190 |
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191 | try {
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192 | pdfStream = new _worker_stream.PDFWorkerStream(handler);
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193 | } catch (ex) {
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194 | pdfManagerCapability.reject(ex);
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195 | return pdfManagerCapability.promise;
|
196 | }
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197 |
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198 | const fullRequest = pdfStream.getFullReader();
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199 | fullRequest.headersReady.then(function () {
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200 | if (!fullRequest.isRangeSupported) {
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201 | return;
|
202 | }
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203 |
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204 | const disableAutoFetch = source.disableAutoFetch || fullRequest.isStreamingSupported;
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205 | newPdfManager = new _pdf_manager.NetworkPdfManager(docId, pdfStream, {
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206 | msgHandler: handler,
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207 | password: source.password,
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208 | length: fullRequest.contentLength,
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209 | disableAutoFetch,
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210 | rangeChunkSize: source.rangeChunkSize
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211 | }, evaluatorOptions, enableXfa, docBaseUrl);
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212 |
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213 | for (const chunk of cachedChunks) {
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214 | newPdfManager.sendProgressiveData(chunk);
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215 | }
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216 |
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217 | cachedChunks = [];
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218 | pdfManagerCapability.resolve(newPdfManager);
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219 | cancelXHRs = null;
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220 | }).catch(function (reason) {
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221 | pdfManagerCapability.reject(reason);
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222 | cancelXHRs = null;
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223 | });
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224 | let loaded = 0;
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225 |
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226 | const flushChunks = function () {
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227 | const pdfFile = (0, _util.arraysToBytes)(cachedChunks);
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228 |
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229 | if (source.length && pdfFile.length !== source.length) {
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230 | (0, _util.warn)("reported HTTP length is different from actual");
|
231 | }
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232 |
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233 | try {
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234 | newPdfManager = new _pdf_manager.LocalPdfManager(docId, pdfFile, source.password, handler, evaluatorOptions, enableXfa, docBaseUrl);
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235 | pdfManagerCapability.resolve(newPdfManager);
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236 | } catch (ex) {
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237 | pdfManagerCapability.reject(ex);
|
238 | }
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239 |
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240 | cachedChunks = [];
|
241 | };
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242 |
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243 | const readPromise = new Promise(function (resolve, reject) {
|
244 | const readChunk = function ({
|
245 | value,
|
246 | done
|
247 | }) {
|
248 | try {
|
249 | ensureNotTerminated();
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250 |
|
251 | if (done) {
|
252 | if (!newPdfManager) {
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253 | flushChunks();
|
254 | }
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255 |
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256 | cancelXHRs = null;
|
257 | return;
|
258 | }
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259 |
|
260 | loaded += (0, _util.arrayByteLength)(value);
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261 |
|
262 | if (!fullRequest.isStreamingSupported) {
|
263 | handler.send("DocProgress", {
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264 | loaded,
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265 | total: Math.max(loaded, fullRequest.contentLength || 0)
|
266 | });
|
267 | }
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268 |
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269 | if (newPdfManager) {
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270 | newPdfManager.sendProgressiveData(value);
|
271 | } else {
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272 | cachedChunks.push(value);
|
273 | }
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274 |
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275 | fullRequest.read().then(readChunk, reject);
|
276 | } catch (e) {
|
277 | reject(e);
|
278 | }
|
279 | };
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280 |
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281 | fullRequest.read().then(readChunk, reject);
|
282 | });
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283 | readPromise.catch(function (e) {
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284 | pdfManagerCapability.reject(e);
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285 | cancelXHRs = null;
|
286 | });
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287 |
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288 | cancelXHRs = function (reason) {
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289 | pdfStream.cancelAllRequests(reason);
|
290 | };
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291 |
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292 | return pdfManagerCapability.promise;
|
293 | }
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294 |
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295 | function setupDoc(data) {
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296 | function onSuccess(doc) {
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297 | ensureNotTerminated();
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298 | handler.send("GetDoc", {
|
299 | pdfInfo: doc
|
300 | });
|
301 | }
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302 |
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303 | function onFailure(ex) {
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304 | ensureNotTerminated();
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305 |
|
306 | if (ex instanceof _util.PasswordException) {
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307 | const task = new WorkerTask(`PasswordException: response ${ex.code}`);
|
308 | startWorkerTask(task);
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309 | handler.sendWithPromise("PasswordRequest", ex).then(function ({
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310 | password
|
311 | }) {
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312 | finishWorkerTask(task);
|
313 | pdfManager.updatePassword(password);
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314 | pdfManagerReady();
|
315 | }).catch(function () {
|
316 | finishWorkerTask(task);
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317 | handler.send("DocException", ex);
|
318 | });
|
319 | } else if (ex instanceof _util.InvalidPDFException || ex instanceof _util.MissingPDFException || ex instanceof _util.UnexpectedResponseException || ex instanceof _util.UnknownErrorException) {
|
320 | handler.send("DocException", ex);
|
321 | } else {
|
322 | handler.send("DocException", new _util.UnknownErrorException(ex.message, ex.toString()));
|
323 | }
|
324 | }
|
325 |
|
326 | function pdfManagerReady() {
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327 | ensureNotTerminated();
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328 | loadDocument(false).then(onSuccess, function (reason) {
|
329 | ensureNotTerminated();
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330 |
|
331 | if (!(reason instanceof _core_utils.XRefParseException)) {
|
332 | onFailure(reason);
|
333 | return;
|
334 | }
|
335 |
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336 | pdfManager.requestLoadedStream();
|
337 | pdfManager.onLoadedStream().then(function () {
|
338 | ensureNotTerminated();
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339 | loadDocument(true).then(onSuccess, onFailure);
|
340 | });
|
341 | });
|
342 | }
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343 |
|
344 | ensureNotTerminated();
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345 | const evaluatorOptions = {
|
346 | maxImageSize: data.maxImageSize,
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347 | disableFontFace: data.disableFontFace,
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348 | ignoreErrors: data.ignoreErrors,
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349 | isEvalSupported: data.isEvalSupported,
|
350 | fontExtraProperties: data.fontExtraProperties,
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351 | useSystemFonts: data.useSystemFonts,
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352 | cMapUrl: data.cMapUrl,
|
353 | standardFontDataUrl: data.standardFontDataUrl
|
354 | };
|
355 | getPdfManager(data, evaluatorOptions, data.enableXfa).then(function (newPdfManager) {
|
356 | if (terminated) {
|
357 | newPdfManager.terminate(new _util.AbortException("Worker was terminated."));
|
358 | throw new Error("Worker was terminated");
|
359 | }
|
360 |
|
361 | pdfManager = newPdfManager;
|
362 | pdfManager.onLoadedStream().then(function (stream) {
|
363 | handler.send("DataLoaded", {
|
364 | length: stream.bytes.byteLength
|
365 | });
|
366 | });
|
367 | }).then(pdfManagerReady, onFailure);
|
368 | }
|
369 |
|
370 | handler.on("GetPage", function wphSetupGetPage(data) {
|
371 | return pdfManager.getPage(data.pageIndex).then(function (page) {
|
372 | return Promise.all([pdfManager.ensure(page, "rotate"), pdfManager.ensure(page, "ref"), pdfManager.ensure(page, "userUnit"), pdfManager.ensure(page, "view")]).then(function ([rotate, ref, userUnit, view]) {
|
373 | return {
|
374 | rotate,
|
375 | ref,
|
376 | userUnit,
|
377 | view
|
378 | };
|
379 | });
|
380 | });
|
381 | });
|
382 | handler.on("GetPageIndex", function wphSetupGetPageIndex(data) {
|
383 | const pageRef = _primitives.Ref.get(data.num, data.gen);
|
384 |
|
385 | return pdfManager.ensureCatalog("getPageIndex", [pageRef]);
|
386 | });
|
387 | handler.on("GetDestinations", function wphSetupGetDestinations(data) {
|
388 | return pdfManager.ensureCatalog("destinations");
|
389 | });
|
390 | handler.on("GetDestination", function wphSetupGetDestination(data) {
|
391 | return pdfManager.ensureCatalog("getDestination", [data.id]);
|
392 | });
|
393 | handler.on("GetPageLabels", function wphSetupGetPageLabels(data) {
|
394 | return pdfManager.ensureCatalog("pageLabels");
|
395 | });
|
396 | handler.on("GetPageLayout", function wphSetupGetPageLayout(data) {
|
397 | return pdfManager.ensureCatalog("pageLayout");
|
398 | });
|
399 | handler.on("GetPageMode", function wphSetupGetPageMode(data) {
|
400 | return pdfManager.ensureCatalog("pageMode");
|
401 | });
|
402 | handler.on("GetViewerPreferences", function (data) {
|
403 | return pdfManager.ensureCatalog("viewerPreferences");
|
404 | });
|
405 | handler.on("GetOpenAction", function (data) {
|
406 | return pdfManager.ensureCatalog("openAction");
|
407 | });
|
408 | handler.on("GetAttachments", function wphSetupGetAttachments(data) {
|
409 | return pdfManager.ensureCatalog("attachments");
|
410 | });
|
411 | handler.on("GetJavaScript", function wphSetupGetJavaScript(data) {
|
412 | return pdfManager.ensureCatalog("javaScript");
|
413 | });
|
414 | handler.on("GetDocJSActions", function wphSetupGetDocJSActions(data) {
|
415 | return pdfManager.ensureCatalog("jsActions");
|
416 | });
|
417 | handler.on("GetPageJSActions", function ({
|
418 | pageIndex
|
419 | }) {
|
420 | return pdfManager.getPage(pageIndex).then(function (page) {
|
421 | return pdfManager.ensure(page, "jsActions");
|
422 | });
|
423 | });
|
424 | handler.on("GetOutline", function wphSetupGetOutline(data) {
|
425 | return pdfManager.ensureCatalog("documentOutline");
|
426 | });
|
427 | handler.on("GetOptionalContentConfig", function (data) {
|
428 | return pdfManager.ensureCatalog("optionalContentConfig");
|
429 | });
|
430 | handler.on("GetPermissions", function (data) {
|
431 | return pdfManager.ensureCatalog("permissions");
|
432 | });
|
433 | handler.on("GetMetadata", function wphSetupGetMetadata(data) {
|
434 | return Promise.all([pdfManager.ensureDoc("documentInfo"), pdfManager.ensureCatalog("metadata")]);
|
435 | });
|
436 | handler.on("GetMarkInfo", function wphSetupGetMarkInfo(data) {
|
437 | return pdfManager.ensureCatalog("markInfo");
|
438 | });
|
439 | handler.on("GetData", function wphSetupGetData(data) {
|
440 | pdfManager.requestLoadedStream();
|
441 | return pdfManager.onLoadedStream().then(function (stream) {
|
442 | return stream.bytes;
|
443 | });
|
444 | });
|
445 | handler.on("GetAnnotations", function ({
|
446 | pageIndex,
|
447 | intent
|
448 | }) {
|
449 | return pdfManager.getPage(pageIndex).then(function (page) {
|
450 | return page.getAnnotationsData(intent);
|
451 | });
|
452 | });
|
453 | handler.on("GetFieldObjects", function (data) {
|
454 | return pdfManager.ensureDoc("fieldObjects");
|
455 | });
|
456 | handler.on("HasJSActions", function (data) {
|
457 | return pdfManager.ensureDoc("hasJSActions");
|
458 | });
|
459 | handler.on("GetCalculationOrderIds", function (data) {
|
460 | return pdfManager.ensureDoc("calculationOrderIds");
|
461 | });
|
462 | handler.on("SaveDocument", function ({
|
463 | isPureXfa,
|
464 | numPages,
|
465 | annotationStorage,
|
466 | filename
|
467 | }) {
|
468 | pdfManager.requestLoadedStream();
|
469 | const newAnnotationsByPage = !isPureXfa ? (0, _core_utils.getNewAnnotationsMap)(annotationStorage) : null;
|
470 | const promises = [pdfManager.onLoadedStream(), pdfManager.ensureCatalog("acroForm"), pdfManager.ensureCatalog("acroFormRef"), pdfManager.ensureDoc("xref"), pdfManager.ensureDoc("startXRef")];
|
471 |
|
472 | if (newAnnotationsByPage) {
|
473 | for (const [pageIndex, annotations] of newAnnotationsByPage) {
|
474 | promises.push(pdfManager.getPage(pageIndex).then(page => {
|
475 | const task = new WorkerTask(`Save (editor): page ${pageIndex}`);
|
476 | return page.saveNewAnnotations(handler, task, annotations).finally(function () {
|
477 | finishWorkerTask(task);
|
478 | });
|
479 | }));
|
480 | }
|
481 | }
|
482 |
|
483 | if (isPureXfa) {
|
484 | promises.push(pdfManager.serializeXfaData(annotationStorage));
|
485 | } else {
|
486 | for (let pageIndex = 0; pageIndex < numPages; pageIndex++) {
|
487 | promises.push(pdfManager.getPage(pageIndex).then(function (page) {
|
488 | const task = new WorkerTask(`Save: page ${pageIndex}`);
|
489 | return page.save(handler, task, annotationStorage).finally(function () {
|
490 | finishWorkerTask(task);
|
491 | });
|
492 | }));
|
493 | }
|
494 | }
|
495 |
|
496 | return Promise.all(promises).then(function ([stream, acroForm, acroFormRef, xref, startXRef, ...refs]) {
|
497 | let newRefs = [];
|
498 | let xfaData = null;
|
499 |
|
500 | if (isPureXfa) {
|
501 | xfaData = refs[0];
|
502 |
|
503 | if (!xfaData) {
|
504 | return stream.bytes;
|
505 | }
|
506 | } else {
|
507 | newRefs = refs.flat(2);
|
508 |
|
509 | if (newRefs.length === 0) {
|
510 | return stream.bytes;
|
511 | }
|
512 | }
|
513 |
|
514 | const xfa = acroForm instanceof _primitives.Dict && acroForm.get("XFA") || null;
|
515 | let xfaDatasetsRef = null;
|
516 | let hasXfaDatasetsEntry = false;
|
517 |
|
518 | if (Array.isArray(xfa)) {
|
519 | for (let i = 0, ii = xfa.length; i < ii; i += 2) {
|
520 | if (xfa[i] === "datasets") {
|
521 | xfaDatasetsRef = xfa[i + 1];
|
522 | acroFormRef = null;
|
523 | hasXfaDatasetsEntry = true;
|
524 | }
|
525 | }
|
526 |
|
527 | if (xfaDatasetsRef === null) {
|
528 | xfaDatasetsRef = xref.getNewRef();
|
529 | }
|
530 | } else if (xfa) {
|
531 | acroFormRef = null;
|
532 | (0, _util.warn)("Unsupported XFA type.");
|
533 | }
|
534 |
|
535 | let newXrefInfo = Object.create(null);
|
536 |
|
537 | if (xref.trailer) {
|
538 | const infoObj = Object.create(null);
|
539 | const xrefInfo = xref.trailer.get("Info") || null;
|
540 |
|
541 | if (xrefInfo instanceof _primitives.Dict) {
|
542 | xrefInfo.forEach((key, value) => {
|
543 | if (typeof value === "string") {
|
544 | infoObj[key] = (0, _util.stringToPDFString)(value);
|
545 | }
|
546 | });
|
547 | }
|
548 |
|
549 | newXrefInfo = {
|
550 | rootRef: xref.trailer.getRaw("Root") || null,
|
551 | encryptRef: xref.trailer.getRaw("Encrypt") || null,
|
552 | newRef: xref.getNewRef(),
|
553 | infoRef: xref.trailer.getRaw("Info") || null,
|
554 | info: infoObj,
|
555 | fileIds: xref.trailer.get("ID") || null,
|
556 | startXRef,
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557 | filename
|
558 | };
|
559 | }
|
560 |
|
561 | xref.resetNewRef();
|
562 | return (0, _writer.incrementalUpdate)({
|
563 | originalData: stream.bytes,
|
564 | xrefInfo: newXrefInfo,
|
565 | newRefs,
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566 | xref,
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567 | hasXfa: !!xfa,
|
568 | xfaDatasetsRef,
|
569 | hasXfaDatasetsEntry,
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570 | acroFormRef,
|
571 | acroForm,
|
572 | xfaData
|
573 | });
|
574 | });
|
575 | });
|
576 | handler.on("GetOperatorList", function wphSetupRenderPage(data, sink) {
|
577 | const pageIndex = data.pageIndex;
|
578 | pdfManager.getPage(pageIndex).then(function (page) {
|
579 | const task = new WorkerTask(`GetOperatorList: page ${pageIndex}`);
|
580 | startWorkerTask(task);
|
581 | const start = verbosity >= _util.VerbosityLevel.INFOS ? Date.now() : 0;
|
582 | page.getOperatorList({
|
583 | handler,
|
584 | sink,
|
585 | task,
|
586 | intent: data.intent,
|
587 | cacheKey: data.cacheKey,
|
588 | annotationStorage: data.annotationStorage
|
589 | }).then(function (operatorListInfo) {
|
590 | finishWorkerTask(task);
|
591 |
|
592 | if (start) {
|
593 | (0, _util.info)(`page=${pageIndex + 1} - getOperatorList: time=` + `${Date.now() - start}ms, len=${operatorListInfo.length}`);
|
594 | }
|
595 |
|
596 | sink.close();
|
597 | }, function (reason) {
|
598 | finishWorkerTask(task);
|
599 |
|
600 | if (task.terminated) {
|
601 | return;
|
602 | }
|
603 |
|
604 | handler.send("UnsupportedFeature", {
|
605 | featureId: _util.UNSUPPORTED_FEATURES.errorOperatorList
|
606 | });
|
607 | sink.error(reason);
|
608 | });
|
609 | });
|
610 | });
|
611 | handler.on("GetTextContent", function wphExtractText(data, sink) {
|
612 | const pageIndex = data.pageIndex;
|
613 | pdfManager.getPage(pageIndex).then(function (page) {
|
614 | const task = new WorkerTask("GetTextContent: page " + pageIndex);
|
615 | startWorkerTask(task);
|
616 | const start = verbosity >= _util.VerbosityLevel.INFOS ? Date.now() : 0;
|
617 | page.extractTextContent({
|
618 | handler,
|
619 | task,
|
620 | sink,
|
621 | includeMarkedContent: data.includeMarkedContent,
|
622 | combineTextItems: data.combineTextItems
|
623 | }).then(function () {
|
624 | finishWorkerTask(task);
|
625 |
|
626 | if (start) {
|
627 | (0, _util.info)(`page=${pageIndex + 1} - getTextContent: time=` + `${Date.now() - start}ms`);
|
628 | }
|
629 |
|
630 | sink.close();
|
631 | }, function (reason) {
|
632 | finishWorkerTask(task);
|
633 |
|
634 | if (task.terminated) {
|
635 | return;
|
636 | }
|
637 |
|
638 | sink.error(reason);
|
639 | });
|
640 | });
|
641 | });
|
642 | handler.on("GetStructTree", function wphGetStructTree(data) {
|
643 | return pdfManager.getPage(data.pageIndex).then(function (page) {
|
644 | return pdfManager.ensure(page, "getStructTree");
|
645 | });
|
646 | });
|
647 | handler.on("FontFallback", function (data) {
|
648 | return pdfManager.fontFallback(data.id, handler);
|
649 | });
|
650 | handler.on("Cleanup", function wphCleanup(data) {
|
651 | return pdfManager.cleanup(true);
|
652 | });
|
653 | handler.on("Terminate", function wphTerminate(data) {
|
654 | terminated = true;
|
655 | const waitOn = [];
|
656 |
|
657 | if (pdfManager) {
|
658 | pdfManager.terminate(new _util.AbortException("Worker was terminated."));
|
659 | const cleanupPromise = pdfManager.cleanup();
|
660 | waitOn.push(cleanupPromise);
|
661 | pdfManager = null;
|
662 | } else {
|
663 | (0, _cleanup_helper.clearGlobalCaches)();
|
664 | }
|
665 |
|
666 | if (cancelXHRs) {
|
667 | cancelXHRs(new _util.AbortException("Worker was terminated."));
|
668 | }
|
669 |
|
670 | for (const task of WorkerTasks) {
|
671 | waitOn.push(task.finished);
|
672 | task.terminate();
|
673 | }
|
674 |
|
675 | return Promise.all(waitOn).then(function () {
|
676 | handler.destroy();
|
677 | handler = null;
|
678 | });
|
679 | });
|
680 | handler.on("Ready", function wphReady(data) {
|
681 | setupDoc(docParams);
|
682 | docParams = null;
|
683 | });
|
684 | return workerHandlerName;
|
685 | }
|
686 |
|
687 | static initializeFromPort(port) {
|
688 | const handler = new _message_handler.MessageHandler("worker", "main", port);
|
689 | WorkerMessageHandler.setup(handler, port);
|
690 | handler.send("ready", null);
|
691 | }
|
692 |
|
693 | }
|
694 |
|
695 | exports.WorkerMessageHandler = WorkerMessageHandler;
|
696 |
|
697 | function isMessagePort(maybePort) {
|
698 | return typeof maybePort.postMessage === "function" && "onmessage" in maybePort;
|
699 | }
|
700 |
|
701 | if (typeof window === "undefined" && !_is_node.isNodeJS && typeof self !== "undefined" && isMessagePort(self)) {
|
702 | WorkerMessageHandler.initializeFromPort(self);
|
703 | } |
\ | No newline at end of file |