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1x | /* Copyright 2017 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.
*/
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.build = exports.version = exports.setPDFNetworkStreamClass = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = exports.getDocument = undefined;
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; Eif ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { Eif (protoProps) defineProperties(Constructor.prototype, protoProps); Iif (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
var _util = require('../shared/util');
var _dom_utils = require('./dom_utils');
var _font_loader = require('./font_loader');
var _canvas = require('./canvas');
var _global_scope = require('../shared/global_scope');
var _global_scope2 = _interopRequireDefault(_global_scope);
var _metadata = require('./metadata');
var _transport_stream = require('./transport_stream');
var _webgl = require('./webgl');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var DEFAULT_RANGE_CHUNK_SIZE = 65536;
var isWorkerDisabled = false;
var workerSrc;
var isPostMessageTransfersDisabled = false;
var pdfjsFilePath = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : null;
var fakeWorkerFilesLoader = null;
var useRequireEnsure = false;
{
Eif (typeof window === 'undefined') {
isWorkerDisabled = true;
Eif (typeof require.ensure === 'undefined') {
require.ensure = require('node-ensure');
}
useRequireEnsure = true;
} else if (typeof require !== 'undefined' && typeof require.ensure === 'function') {
useRequireEnsure = true;
}
Iif (typeof requirejs !== 'undefined' && requirejs.toUrl) {
workerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');
}
var dynamicLoaderSupported = typeof requirejs !== 'undefined' && requirejs.load;
fakeWorkerFilesLoader = useRequireEnsure ? function (callback) {
require.ensure([], function () {
var worker;
worker = require('../pdf.worker.js');
callback(worker.WorkerMessageHandler);
});
} : dynamicLoaderSupported ? function (callback) {
requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {
callback(worker.WorkerMessageHandler);
});
} : null;
}
var PDFNetworkStream;
function setPDFNetworkStreamClass(cls) {
PDFNetworkStream = cls;
}
function getDocument(src) {
var task = new PDFDocumentLoadingTask();
var source;
Iif (typeof src === 'string') {
source = { url: src };
} else if ((0, _util.isArrayBuffer)(src)) {
source = { data: src };
} else Iif (src instanceof PDFDataRangeTransport) {
source = { range: src };
} else {
Iif ((typeof src === 'undefined' ? 'undefined' : _typeof(src)) !== 'object') {
throw new Error('Invalid parameter in getDocument, ' + 'need either Uint8Array, string or a parameter object');
}
Iif (!src.url && !src.data && !src.range) {
throw new Error('Invalid parameter object: need either .data, .range or .url');
}
source = src;
}
var params = {};
var rangeTransport = null;
var worker = null;
var CMapReaderFactory = _dom_utils.DOMCMapReaderFactory;
for (var key in source) {
Iif (key === 'url' && typeof window !== 'undefined') {
params[key] = new URL(source[key], window.location).href;
continue;
} else Iif (key === 'range') {
rangeTransport = source[key];
continue;
} else Iif (key === 'worker') {
worker = source[key];
continue;
} else Iif (key === 'data' && !(source[key] instanceof Uint8Array)) {
var pdfBytes = source[key];
if (typeof pdfBytes === 'string') {
params[key] = (0, _util.stringToBytes)(pdfBytes);
} else if ((typeof pdfBytes === 'undefined' ? 'undefined' : _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;
} else Iif (key === 'CMapReaderFactory') {
CMapReaderFactory = source[key];
continue;
}
params[key] = source[key];
}
params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
params.ignoreErrors = params.stopAtErrors !== true;
var nativeImageDecoderValues = Object.values(_util.NativeImageDecoding);
if (params.nativeImageDecoderSupport === undefined || !nativeImageDecoderValues.includes(params.nativeImageDecoderSupport)) {
params.nativeImageDecoderSupport = _util.NativeImageDecoding.DECODE;
}
Eif (!worker) {
var workerPort = (0, _dom_utils.getDefaultSetting)('workerPort');
worker = workerPort ? PDFWorker.fromPort(workerPort) : new PDFWorker();
task._worker = worker;
}
var docId = task.docId;
worker.promise.then(function () {
Iif (task.destroyed) {
throw new Error('Loading aborted');
}
return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
Iif (task.destroyed) {
throw new Error('Loading aborted');
}
var networkStream = void 0;
Iif (rangeTransport) {
networkStream = new _transport_stream.PDFDataTransportStream(params, rangeTransport);
} else Iif (!params.data) {
networkStream = new PDFNetworkStream(params);
}
var messageHandler = new _util.MessageHandler(docId, workerId, worker.port);
messageHandler.postMessageTransfers = worker.postMessageTransfers;
var transport = new WorkerTransport(messageHandler, task, networkStream, CMapReaderFactory);
task._transport = transport;
messageHandler.send('Ready', null);
});
}).catch(task._capability.reject);
return task;
}
function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
Iif (worker.destroyed) {
return Promise.reject(new Error('Worker was destroyed'));
}
var apiVersion = '2.0.213';
source.disableRange = (0, _dom_utils.getDefaultSetting)('disableRange');
source.disableAutoFetch = (0, _dom_utils.getDefaultSetting)('disableAutoFetch');
source.disableStream = (0, _dom_utils.getDefaultSetting)('disableStream');
Iif (pdfDataRangeTransport) {
source.length = pdfDataRangeTransport.length;
source.initialData = pdfDataRangeTransport.initialData;
}
return worker.messageHandler.sendWithPromise('GetDocRequest', {
docId: docId,
apiVersion: apiVersion,
source: {
data: source.data,
url: source.url,
password: source.password,
disableAutoFetch: source.disableAutoFetch,
rangeChunkSize: source.rangeChunkSize,
length: source.length
},
maxImageSize: (0, _dom_utils.getDefaultSetting)('maxImageSize'),
disableFontFace: (0, _dom_utils.getDefaultSetting)('disableFontFace'),
disableCreateObjectURL: (0, _dom_utils.getDefaultSetting)('disableCreateObjectURL'),
postMessageTransfers: (0, _dom_utils.getDefaultSetting)('postMessageTransfers') && !isPostMessageTransfersDisabled,
docBaseUrl: source.docBaseUrl,
nativeImageDecoderSupport: source.nativeImageDecoderSupport,
ignoreErrors: source.ignoreErrors,
isEvalSupported: (0, _dom_utils.getDefaultSetting)('isEvalSupported')
}).then(function (workerId) {
Iif (worker.destroyed) {
throw new Error('Worker was destroyed');
}
return workerId;
});
}
var PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
var nextDocumentId = 0;
function PDFDocumentLoadingTask() {
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;
}
PDFDocumentLoadingTask.prototype = {
get promise() {
return this._capability.promise;
},
destroy: function destroy() {
var _this = this;
this.destroyed = true;
var transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
return transportDestroyed.then(function () {
_this._transport = null;
Eif (_this._worker) {
_this._worker.destroy();
_this._worker = null;
}
});
},
then: function PDFDocumentLoadingTask_then(onFulfilled, onRejected) {
return this.promise.then.apply(this.promise, arguments);
}
};
return PDFDocumentLoadingTask;
}();
var PDFDataRangeTransport = function pdfDataRangeTransportClosure() {
function PDFDataRangeTransport(length, initialData) {
this.length = length;
this.initialData = initialData;
this._rangeListeners = [];
this._progressListeners = [];
this._progressiveReadListeners = [];
this._readyCapability = (0, _util.createPromiseCapability)();
}
PDFDataRangeTransport.prototype = {
addRangeListener: function PDFDataRangeTransport_addRangeListener(listener) {
this._rangeListeners.push(listener);
},
addProgressListener: function PDFDataRangeTransport_addProgressListener(listener) {
this._progressListeners.push(listener);
},
addProgressiveReadListener: function PDFDataRangeTransport_addProgressiveReadListener(listener) {
this._progressiveReadListeners.push(listener);
},
onDataRange: function PDFDataRangeTransport_onDataRange(begin, chunk) {
var listeners = this._rangeListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](begin, chunk);
}
},
onDataProgress: function PDFDataRangeTransport_onDataProgress(loaded) {
var _this2 = this;
this._readyCapability.promise.then(function () {
var listeners = _this2._progressListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](loaded);
}
});
},
onDataProgressiveRead: function PDFDataRangeTransport_onDataProgress(chunk) {
var _this3 = this;
this._readyCapability.promise.then(function () {
var listeners = _this3._progressiveReadListeners;
for (var i = 0, n = listeners.length; i < n; ++i) {
listeners[i](chunk);
}
});
},
transportReady: function PDFDataRangeTransport_transportReady() {
this._readyCapability.resolve();
},
requestDataRange: function PDFDataRangeTransport_requestDataRange(begin, end) {
throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');
},
abort: function PDFDataRangeTransport_abort() {}
};
return PDFDataRangeTransport;
}();
var PDFDocumentProxy = function PDFDocumentProxyClosure() {
function PDFDocumentProxy(pdfInfo, transport, loadingTask) {
this.pdfInfo = pdfInfo;
this.transport = transport;
this.loadingTask = loadingTask;
}
PDFDocumentProxy.prototype = {
get numPages() {
return this.pdfInfo.numPages;
},
get fingerprint() {
return this.pdfInfo.fingerprint;
},
getPage: function getPage(pageNumber) {
return this.transport.getPage(pageNumber);
},
getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {
return this.transport.getPageIndex(ref);
},
getDestinations: function PDFDocumentProxy_getDestinations() {
return this.transport.getDestinations();
},
getDestination: function PDFDocumentProxy_getDestination(id) {
return this.transport.getDestination(id);
},
getPageLabels: function PDFDocumentProxy_getPageLabels() {
return this.transport.getPageLabels();
},
getPageMode: function getPageMode() {
return this.transport.getPageMode();
},
getAttachments: function PDFDocumentProxy_getAttachments() {
return this.transport.getAttachments();
},
getJavaScript: function getJavaScript() {
return this.transport.getJavaScript();
},
getOutline: function PDFDocumentProxy_getOutline() {
return this.transport.getOutline();
},
getMetadata: function PDFDocumentProxy_getMetadata() {
return this.transport.getMetadata();
},
getData: function PDFDocumentProxy_getData() {
return this.transport.getData();
},
getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {
return this.transport.downloadInfoCapability.promise;
},
getStats: function PDFDocumentProxy_getStats() {
return this.transport.getStats();
},
cleanup: function PDFDocumentProxy_cleanup() {
this.transport.startCleanup();
},
destroy: function PDFDocumentProxy_destroy() {
return this.loadingTask.destroy();
}
};
return PDFDocumentProxy;
}();
var PDFPageProxy = function PDFPageProxyClosure() {
function PDFPageProxy(pageIndex, pageInfo, transport) {
this.pageIndex = pageIndex;
this.pageInfo = pageInfo;
this.transport = transport;
this._stats = (0, _dom_utils.getDefaultSetting)('enableStats') ? new _dom_utils.StatTimer() : _dom_utils.DummyStatTimer;
this.commonObjs = transport.commonObjs;
this.objs = new PDFObjects();
this.cleanupAfterRender = false;
this.pendingCleanup = false;
this.intentStates = Object.create(null);
this.destroyed = false;
}
PDFPageProxy.prototype = {
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: function PDFPageProxy_getViewport(scale, rotate) {
Iif (arguments.length < 2) {
rotate = this.rotate;
}
return new _util.PageViewport(this.view, scale, rotate, 0, 0);
},
getAnnotations: function PDFPageProxy_getAnnotations(params) {
var intent = params && params.intent || null;
Eif (!this.annotationsPromise || this.annotationsIntent !== intent) {
this.annotationsPromise = this.transport.getAnnotations(this.pageIndex, intent);
this.annotationsIntent = intent;
}
return this.annotationsPromise;
},
render: function PDFPageProxy_render(params) {
var _this4 = this;
var stats = this._stats;
stats.time('Overall');
this.pendingCleanup = false;
var renderingIntent = params.intent === 'print' ? 'print' : 'display';
var canvasFactory = params.canvasFactory || new _dom_utils.DOMCanvasFactory();
var webGLContext = new _webgl.WebGLContext({ enable: !(0, _dom_utils.getDefaultSetting)('disableWebGL') });
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
}
var intentState = this.intentStates[renderingIntent];
if (!intentState.displayReadyCapability) {
intentState.receivingOperatorList = true;
intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
intentState.operatorList = {
fnArray: [],
argsArray: [],
lastChunk: false
};
stats.time('Page Request');
this.transport.messageHandler.send('RenderPageRequest', {
pageIndex: this.pageNumber - 1,
intent: renderingIntent,
renderInteractiveForms: params.renderInteractiveForms === true
});
}
var complete = function complete(error) {
var i = intentState.renderTasks.indexOf(internalRenderTask);
if (i >= 0) {
intentState.renderTasks.splice(i, 1);
}
if (_this4.cleanupAfterRender) {
_this4.pendingCleanup = true;
}
_this4._tryCleanup();
if (error) {
internalRenderTask.capability.reject(error);
} else {
internalRenderTask.capability.resolve();
}
stats.timeEnd('Rendering');
stats.timeEnd('Overall');
};
var internalRenderTask = new InternalRenderTask(complete, params, this.objs, this.commonObjs, intentState.operatorList, this.pageNumber, canvasFactory, webGLContext);
internalRenderTask.useRequestAnimationFrame = renderingIntent !== 'print';
if (!intentState.renderTasks) {
intentState.renderTasks = [];
}
intentState.renderTasks.push(internalRenderTask);
var renderTask = internalRenderTask.task;
intentState.displayReadyCapability.promise.then(function (transparency) {
if (_this4.pendingCleanup) {
complete();
return;
}
stats.time('Rendering');
internalRenderTask.initializeGraphics(transparency);
internalRenderTask.operatorListChanged();
}).catch(complete);
return renderTask;
},
getOperatorList: function PDFPageProxy_getOperatorList() {
function operatorListChanged() {
Eif (intentState.operatorList.lastChunk) {
intentState.opListReadCapability.resolve(intentState.operatorList);
var i = intentState.renderTasks.indexOf(opListTask);
Eif (i >= 0) {
intentState.renderTasks.splice(i, 1);
}
}
}
var renderingIntent = 'oplist';
if (!this.intentStates[renderingIntent]) {
this.intentStates[renderingIntent] = Object.create(null);
}
var intentState = this.intentStates[renderingIntent];
var opListTask;
if (!intentState.opListReadCapability) {
opListTask = {};
opListTask.operatorListChanged = operatorListChanged;
intentState.receivingOperatorList = true;
intentState.opListReadCapability = (0, _util.createPromiseCapability)();
intentState.renderTasks = [];
intentState.renderTasks.push(opListTask);
intentState.operatorList = {
fnArray: [],
argsArray: [],
lastChunk: false
};
this.transport.messageHandler.send('RenderPageRequest', {
pageIndex: this.pageIndex,
intent: renderingIntent
});
}
return intentState.opListReadCapability.promise;
},
streamTextContent: function streamTextContent() {
var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var TEXT_CONTENT_CHUNK_SIZE = 100;
return this.transport.messageHandler.sendWithStream('GetTextContent', {
pageIndex: this.pageNumber - 1,
normalizeWhitespace: params.normalizeWhitespace === true,
combineTextItems: params.disableCombineTextItems !== true
}, {
highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
size: function size(textContent) {
return textContent.items.length;
}
});
},
getTextContent: function PDFPageProxy_getTextContent(params) {
params = params || {};
var readableStream = this.streamTextContent(params);
return new Promise(function (resolve, reject) {
function pump() {
reader.read().then(function (_ref) {
var value = _ref.value,
done = _ref.done;
if (done) {
resolve(textContent);
return;
}
_util.Util.extendObj(textContent.styles, value.styles);
_util.Util.appendToArray(textContent.items, value.items);
pump();
}, reject);
}
var reader = readableStream.getReader();
var textContent = {
items: [],
styles: Object.create(null)
};
pump();
});
},
_destroy: function PDFPageProxy_destroy() {
this.destroyed = true;
this.transport.pageCache[this.pageIndex] = null;
var waitOn = [];
Object.keys(this.intentStates).forEach(function (intent) {
Eif (intent === 'oplist') {
return;
}
var intentState = this.intentStates[intent];
intentState.renderTasks.forEach(function (renderTask) {
var renderCompleted = renderTask.capability.promise.catch(function () {});
waitOn.push(renderCompleted);
renderTask.cancel();
});
}, this);
this.objs.clear();
this.annotationsPromise = null;
this.pendingCleanup = false;
return Promise.all(waitOn);
},
cleanup: function cleanup() {
var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
this.pendingCleanup = true;
this._tryCleanup(resetStats);
},
_tryCleanup: function _tryCleanup() {
var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
Eif (!this.pendingCleanup || Object.keys(this.intentStates).some(function (intent) {
var intentState = this.intentStates[intent];
return intentState.renderTasks.length !== 0 || intentState.receivingOperatorList;
}, this)) {
return;
}
Object.keys(this.intentStates).forEach(function (intent) {
delete this.intentStates[intent];
}, this);
this.objs.clear();
this.annotationsPromise = null;
if (resetStats) {
this._stats.reset();
}
this.pendingCleanup = false;
},
_startRenderPage: function PDFPageProxy_startRenderPage(transparency, intent) {
var intentState = this.intentStates[intent];
Iif (intentState.displayReadyCapability) {
intentState.displayReadyCapability.resolve(transparency);
}
},
_renderPageChunk: function PDFPageProxy_renderPageChunk(operatorListChunk, intent) {
var intentState = this.intentStates[intent];
var i, ii;
for (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 (i = 0; i < intentState.renderTasks.length; i++) {
intentState.renderTasks[i].operatorListChanged();
}
Eif (operatorListChunk.lastChunk) {
intentState.receivingOperatorList = false;
this._tryCleanup();
}
},
get stats() {
return this._stats instanceof _dom_utils.StatTimer ? this._stats : null;
}
};
return PDFPageProxy;
}();
var LoopbackPort = function () {
function LoopbackPort(defer) {
_classCallCheck(this, LoopbackPort);
this._listeners = [];
this._defer = defer;
this._deferred = Promise.resolve(undefined);
}
_createClass(LoopbackPort, [{
key: 'postMessage',
value: function postMessage(obj, transfers) {
var _this5 = this;
function cloneValue(value) {
if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) !== 'object' || value === null) {
return value;
}
if (cloned.has(value)) {
return cloned.get(value);
}
var result;
var buffer;
if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
var transferable = transfers && transfers.indexOf(buffer) >= 0;
Iif (value === buffer) {
result = value;
} else 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 (var i in value) {
var desc,
p = value;
while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
p = Object.getPrototypeOf(p);
}
if (typeof desc.value === 'undefined' || typeof desc.value === 'function') {
continue;
}
result[i] = cloneValue(desc.value);
}
return result;
}
Iif (!this._defer) {
this._listeners.forEach(function (listener) {
listener.call(this, { data: obj });
}, this);
return;
}
var cloned = new WeakMap();
var e = { data: cloneValue(obj) };
this._deferred.then(function () {
_this5._listeners.forEach(function (listener) {
listener.call(this, e);
}, _this5);
});
}
}, {
key: 'addEventListener',
value: function addEventListener(name, listener) {
this._listeners.push(listener);
}
}, {
key: 'removeEventListener',
value: function removeEventListener(name, listener) {
var i = this._listeners.indexOf(listener);
this._listeners.splice(i, 1);
}
}, {
key: 'terminate',
value: function terminate() {
this._listeners = [];
}
}]);
return LoopbackPort;
}();
var PDFWorker = function PDFWorkerClosure() {
var nextFakeWorkerId = 0;
function getWorkerSrc() {
if (typeof workerSrc !== 'undefined') {
return workerSrc;
}
if ((0, _dom_utils.getDefaultSetting)('workerSrc')) {
return (0, _dom_utils.getDefaultSetting)('workerSrc');
}
if (pdfjsFilePath) {
return pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
}
throw new Error('No PDFJS.workerSrc specified');
}
var fakeWorkerFilesLoadedCapability = void 0;
function setupFakeWorkerGlobal() {
var WorkerMessageHandler;
if (fakeWorkerFilesLoadedCapability) {
return fakeWorkerFilesLoadedCapability.promise;
}
fakeWorkerFilesLoadedCapability = (0, _util.createPromiseCapability)();
var loader = fakeWorkerFilesLoader || function (callback) {
_util.Util.loadScript(getWorkerSrc(), function () {
callback(window.pdfjsDistBuildPdfWorker.WorkerMessageHandler);
});
};
loader(fakeWorkerFilesLoadedCapability.resolve);
return fakeWorkerFilesLoadedCapability.promise;
}
function createCDNWrapper(url) {
var wrapper = 'importScripts(\'' + url + '\');';
return URL.createObjectURL(new Blob([wrapper]));
}
var pdfWorkerPorts = new WeakMap();
function PDFWorker(name, port) {
Iif (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._readyCapability = (0, _util.createPromiseCapability)();
this._port = null;
this._webWorker = null;
this._messageHandler = null;
Iif (port) {
pdfWorkerPorts.set(port, this);
this._initializeFromPort(port);
return;
}
this._initialize();
}
PDFWorker.prototype = {
get promise() {
return this._readyCapability.promise;
},
get port() {
return this._port;
},
get messageHandler() {
return this._messageHandler;
},
_initializeFromPort: function PDFWorker_initializeFromPort(port) {
this._port = port;
this._messageHandler = new _util.MessageHandler('main', 'worker', port);
this._messageHandler.on('ready', function () {});
this._readyCapability.resolve();
},
_initialize: function PDFWorker_initialize() {
var _this6 = this;
Iif (!isWorkerDisabled && !(0, _dom_utils.getDefaultSetting)('disableWorker') && typeof Worker !== 'undefined') {
var workerSrc = getWorkerSrc();
try {
if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
workerSrc = createCDNWrapper(new URL(workerSrc, window.location).href);
}
var worker = new Worker(workerSrc);
var messageHandler = new _util.MessageHandler('main', 'worker', worker);
var terminateEarly = function terminateEarly() {
worker.removeEventListener('error', onWorkerError);
messageHandler.destroy();
worker.terminate();
if (_this6.destroyed) {
_this6._readyCapability.reject(new Error('Worker was destroyed'));
} else {
_this6._setupFakeWorker();
}
};
var onWorkerError = function onWorkerError() {
if (!_this6._webWorker) {
terminateEarly();
}
};
worker.addEventListener('error', onWorkerError);
messageHandler.on('test', function (data) {
worker.removeEventListener('error', onWorkerError);
if (_this6.destroyed) {
terminateEarly();
return;
}
var supportTypedArray = data && data.supportTypedArray;
if (supportTypedArray) {
_this6._messageHandler = messageHandler;
_this6._port = worker;
_this6._webWorker = worker;
if (!data.supportTransfers) {
_this6.postMessageTransfers = false;
isPostMessageTransfersDisabled = true;
}
_this6._readyCapability.resolve();
messageHandler.send('configure', { verbosity: (0, _util.getVerbosityLevel)() });
} else {
_this6._setupFakeWorker();
messageHandler.destroy();
worker.terminate();
}
});
messageHandler.on('ready', function (data) {
worker.removeEventListener('error', onWorkerError);
if (_this6.destroyed) {
terminateEarly();
return;
}
try {
sendTest();
} catch (e) {
_this6._setupFakeWorker();
}
});
var sendTest = function sendTest() {
var postMessageTransfers = (0, _dom_utils.getDefaultSetting)('postMessageTransfers') && !isPostMessageTransfersDisabled;
var testObj = new Uint8Array([postMessageTransfers ? 255 : 0]);
try {
messageHandler.send('test', testObj, [testObj.buffer]);
} catch (ex) {
(0, _util.info)('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: function PDFWorker_setupFakeWorker() {
var _this7 = this;
Iif (!isWorkerDisabled && !(0, _dom_utils.getDefaultSetting)('disableWorker')) {
(0, _util.warn)('Setting up fake worker.');
isWorkerDisabled = true;
}
setupFakeWorkerGlobal().then(function (WorkerMessageHandler) {
Iif (_this7.destroyed) {
_this7._readyCapability.reject(new Error('Worker was destroyed'));
return;
}
var isTypedArraysPresent = Uint8Array !== Float32Array;
var port = new LoopbackPort(isTypedArraysPresent);
_this7._port = port;
var id = 'fake' + nextFakeWorkerId++;
var workerHandler = new _util.MessageHandler(id + '_worker', id, port);
WorkerMessageHandler.setup(workerHandler, port);
var messageHandler = new _util.MessageHandler(id, id + '_worker', port);
_this7._messageHandler = messageHandler;
_this7._readyCapability.resolve();
});
},
destroy: function PDFWorker_destroy() {
this.destroyed = true;
Iif (this._webWorker) {
this._webWorker.terminate();
this._webWorker = null;
}
pdfWorkerPorts.delete(this._port);
this._port = null;
Eif (this._messageHandler) {
this._messageHandler.destroy();
this._messageHandler = null;
}
}
};
PDFWorker.fromPort = function (port) {
if (pdfWorkerPorts.has(port)) {
return pdfWorkerPorts.get(port);
}
return new PDFWorker(null, port);
};
return PDFWorker;
}();
var WorkerTransport = function WorkerTransportClosure() {
function WorkerTransport(messageHandler, loadingTask, networkStream, CMapReaderFactory) {
this.messageHandler = messageHandler;
this.loadingTask = loadingTask;
this.commonObjs = new PDFObjects();
this.fontLoader = new _font_loader.FontLoader(loadingTask.docId);
this.CMapReaderFactory = new CMapReaderFactory({
baseUrl: (0, _dom_utils.getDefaultSetting)('cMapUrl'),
isCompressed: (0, _dom_utils.getDefaultSetting)('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();
}
WorkerTransport.prototype = {
destroy: function WorkerTransport_destroy() {
var _this8 = this;
Iif (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'));
}
var waitOn = [];
this.pageCache.forEach(function (page) {
Eif (page) {
waitOn.push(page._destroy());
}
});
this.pageCache = [];
this.pagePromises = [];
var terminated = this.messageHandler.sendWithPromise('Terminate', null);
waitOn.push(terminated);
Promise.all(waitOn).then(function () {
_this8.fontLoader.clear();
Iif (_this8._networkStream) {
_this8._networkStream.cancelAllRequests();
}
Eif (_this8.messageHandler) {
_this8.messageHandler.destroy();
_this8.messageHandler = null;
}
_this8.destroyCapability.resolve();
}, this.destroyCapability.reject);
return this.destroyCapability.promise;
},
setupMessageHandler: function WorkerTransport_setupMessageHandler() {
var messageHandler = this.messageHandler;
var loadingTask = this.loadingTask;
messageHandler.on('GetReader', function (data, sink) {
var _this9 = this;
(0, _util.assert)(this._networkStream);
this._fullReader = this._networkStream.getFullReader();
this._fullReader.onProgress = function (evt) {
_this9._lastProgress = {
loaded: evt.loaded,
total: evt.total
};
};
sink.onPull = function () {
_this9._fullReader.read().then(function (_ref2) {
var value = _ref2.value,
done = _ref2.done;
if (done) {
sink.close();
return;
}
(0, _util.assert)((0, _util.isArrayBuffer)(value));
sink.enqueue(new Uint8Array(value), 1, [value]);
}).catch(function (reason) {
sink.error(reason);
});
};
sink.onCancel = function (reason) {
_this9._fullReader.cancel(reason);
};
}, this);
messageHandler.on('ReaderHeadersReady', function (data) {
var _this10 = this;
var headersCapability = (0, _util.createPromiseCapability)();
var fullReader = this._fullReader;
fullReader.headersReady.then(function () {
if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
if (_this10._lastProgress) {
var _loadingTask = _this10.loadingTask;
if (_loadingTask.onProgress) {
_loadingTask.onProgress(_this10._lastProgress);
}
}
fullReader.onProgress = function (evt) {
var loadingTask = _this10.loadingTask;
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;
}, this);
messageHandler.on('GetRangeReader', function (data, sink) {
(0, _util.assert)(this._networkStream);
var _rangeReader = this._networkStream.getRangeReader(data.begin, data.end);
sink.onPull = function () {
_rangeReader.read().then(function (_ref3) {
var value = _ref3.value,
done = _ref3.done;
if (done) {
sink.close();
return;
}
(0, _util.assert)((0, _util.isArrayBuffer)(value));
sink.enqueue(new Uint8Array(value), 1, [value]);
}).catch(function (reason) {
sink.error(reason);
});
};
sink.onCancel = function (reason) {
_rangeReader.cancel(reason);
};
}, this);
messageHandler.on('GetDoc', function transportDoc(data) {
var pdfInfo = data.pdfInfo;
this.numPages = data.pdfInfo.numPages;
var loadingTask = this.loadingTask;
var pdfDocument = new PDFDocumentProxy(pdfInfo, this, loadingTask);
this.pdfDocument = pdfDocument;
loadingTask._capability.resolve(pdfDocument);
}, this);
messageHandler.on('PasswordRequest', function transportPasswordRequest(exception) {
var _this11 = this;
this._passwordCapability = (0, _util.createPromiseCapability)();
if (loadingTask.onPassword) {
var updatePassword = function updatePassword(password) {
_this11._passwordCapability.resolve({ password: password });
};
loadingTask.onPassword(updatePassword, exception.code);
} else {
this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
}
return this._passwordCapability.promise;
}, this);
messageHandler.on('PasswordException', function transportPasswordException(exception) {
loadingTask._capability.reject(new _util.PasswordException(exception.message, exception.code));
}, this);
messageHandler.on('InvalidPDF', function transportInvalidPDF(exception) {
this.loadingTask._capability.reject(new _util.InvalidPDFException(exception.message));
}, this);
messageHandler.on('MissingPDF', function transportMissingPDF(exception) {
this.loadingTask._capability.reject(new _util.MissingPDFException(exception.message));
}, this);
messageHandler.on('UnexpectedResponse', function transportUnexpectedResponse(exception) {
this.loadingTask._capability.reject(new _util.UnexpectedResponseException(exception.message, exception.status));
}, this);
messageHandler.on('UnknownError', function transportUnknownError(exception) {
this.loadingTask._capability.reject(new _util.UnknownErrorException(exception.message, exception.details));
}, this);
messageHandler.on('DataLoaded', function transportPage(data) {
this.downloadInfoCapability.resolve(data);
}, this);
messageHandler.on('PDFManagerReady', function transportPage(data) {}, this);
messageHandler.on('StartRenderPage', function transportRender(data) {
Iif (this.destroyed) {
return;
}
var page = this.pageCache[data.pageIndex];
page._stats.timeEnd('Page Request');
page._startRenderPage(data.transparency, data.intent);
}, this);
messageHandler.on('RenderPageChunk', function transportRender(data) {
Iif (this.destroyed) {
return;
}
var page = this.pageCache[data.pageIndex];
page._renderPageChunk(data.operatorList, data.intent);
}, this);
messageHandler.on('commonobj', function transportObj(data) {
var _this12 = this;
Iif (this.destroyed) {
return;
}
var id = data[0];
var type = data[1];
Iif (this.commonObjs.hasData(id)) {
return;
}
switch (type) {
case 'Font':
var exportedData = data[2];
Iif ('error' in exportedData) {
var exportedError = exportedData.error;
(0, _util.warn)('Error during font loading: ' + exportedError);
this.commonObjs.resolve(id, exportedError);
break;
}
var fontRegistry = null;
Iif ((0, _dom_utils.getDefaultSetting)('pdfBug') && _global_scope2.default.FontInspector && _global_scope2.default['FontInspector'].enabled) {
fontRegistry = {
registerFont: function registerFont(font, url) {
_global_scope2.default['FontInspector'].fontAdded(font, url);
}
};
}
var font = new _font_loader.FontFaceObject(exportedData, {
isEvalSupported: (0, _dom_utils.getDefaultSetting)('isEvalSupported'),
disableFontFace: (0, _dom_utils.getDefaultSetting)('disableFontFace'),
fontRegistry: fontRegistry
});
var fontReady = function fontReady(fontObjs) {
_this12.commonObjs.resolve(id, font);
};
this.fontLoader.bind([font], fontReady);
break;
case 'FontPath':
this.commonObjs.resolve(id, data[2]);
break;
default:
throw new Error('Got unknown common object type ' + type);
}
}, this);
messageHandler.on('obj', function transportObj(data) {
Iif (this.destroyed) {
return;
}
var id = data[0];
var pageIndex = data[1];
var type = data[2];
var pageProxy = this.pageCache[pageIndex];
var imageData;
Iif (pageProxy.objs.hasData(id)) {
return;
}
switch (type) {
case 'JpegStream':
imageData = data[3];
(0, _util.loadJpegStream)(id, imageData, pageProxy.objs);
break;
case 'Image':
imageData = data[3];
pageProxy.objs.resolve(id, imageData);
var MAX_IMAGE_SIZE_TO_STORE = 8000000;
Iif (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);
}
}, this);
messageHandler.on('DocProgress', function transportDocProgress(data) {
if (this.destroyed) {
return;
}
var loadingTask = this.loadingTask;
if (loadingTask.onProgress) {
loadingTask.onProgress({
loaded: data.loaded,
total: data.total
});
}
}, this);
messageHandler.on('PageError', function transportError(data) {
if (this.destroyed) {
return;
}
var page = this.pageCache[data.pageNum - 1];
var intentState = page.intentStates[data.intent];
if (intentState.displayReadyCapability) {
intentState.displayReadyCapability.reject(data.error);
} else {
throw new Error(data.error);
}
if (intentState.operatorList) {
intentState.operatorList.lastChunk = true;
for (var i = 0; i < intentState.renderTasks.length; i++) {
intentState.renderTasks[i].operatorListChanged();
}
}
}, this);
messageHandler.on('UnsupportedFeature', function (data) {
if (this.destroyed) {
return;
}
var loadingTask = this.loadingTask;
if (loadingTask.onUnsupportedFeature) {
loadingTask.onUnsupportedFeature(data.featureId);
}
}, this);
messageHandler.on('JpegDecode', function (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.'));
}
var imageUrl = data[0];
var components = data[1];
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) {
var img = new Image();
img.onload = function () {
var width = img.width;
var height = img.height;
var size = width * height;
var rgbaLength = size * 4;
var buf = new Uint8Array(size * components);
var tmpCanvas = document.createElement('canvas');
tmpCanvas.width = width;
tmpCanvas.height = height;
var tmpCtx = tmpCanvas.getContext('2d');
tmpCtx.drawImage(img, 0, 0);
var data = tmpCtx.getImageData(0, 0, width, height).data;
var i, j;
if (components === 3) {
for (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 (i = 0, j = 0; i < rgbaLength; i += 4, j++) {
buf[j] = data[i];
}
}
resolve({
data: buf,
width: width,
height: height
});
};
img.onerror = function () {
reject(new Error('JpegDecode failed to load image'));
};
img.src = imageUrl;
});
}, this);
messageHandler.on('FetchBuiltInCMap', function (data) {
if (this.destroyed) {
return Promise.reject(new Error('Worker was destroyed'));
}
return this.CMapReaderFactory.fetch({ name: data.name });
}, this);
},
getData: function WorkerTransport_getData() {
return this.messageHandler.sendWithPromise('GetData', null);
},
getPage: function getPage(pageNumber) {
var _this13 = this;
if (!Number.isInteger(pageNumber) || pageNumber <= 0 || pageNumber > this.numPages) {
return Promise.reject(new Error('Invalid page request'));
}
var pageIndex = pageNumber - 1;
Iif (pageIndex in this.pagePromises) {
return this.pagePromises[pageIndex];
}
var promise = this.messageHandler.sendWithPromise('GetPage', { pageIndex: pageIndex }).then(function (pageInfo) {
Iif (_this13.destroyed) {
throw new Error('Transport destroyed');
}
var page = new PDFPageProxy(pageIndex, pageInfo, _this13);
_this13.pageCache[pageIndex] = page;
return page;
});
this.pagePromises[pageIndex] = promise;
return promise;
},
getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
return this.messageHandler.sendWithPromise('GetPageIndex', { ref: ref }).catch(function (reason) {
return Promise.reject(new Error(reason));
});
},
getAnnotations: function WorkerTransport_getAnnotations(pageIndex, intent) {
return this.messageHandler.sendWithPromise('GetAnnotations', {
pageIndex: pageIndex,
intent: intent
});
},
getDestinations: function WorkerTransport_getDestinations() {
return this.messageHandler.sendWithPromise('GetDestinations', null);
},
getDestination: function WorkerTransport_getDestination(id) {
return this.messageHandler.sendWithPromise('GetDestination', { id: id });
},
getPageLabels: function WorkerTransport_getPageLabels() {
return this.messageHandler.sendWithPromise('GetPageLabels', null);
},
getPageMode: function getPageMode() {
return this.messageHandler.sendWithPromise('GetPageMode', null);
},
getAttachments: function WorkerTransport_getAttachments() {
return this.messageHandler.sendWithPromise('GetAttachments', null);
},
getJavaScript: function WorkerTransport_getJavaScript() {
return this.messageHandler.sendWithPromise('GetJavaScript', null);
},
getOutline: function WorkerTransport_getOutline() {
return this.messageHandler.sendWithPromise('GetOutline', null);
},
getMetadata: function WorkerTransport_getMetadata() {
return this.messageHandler.sendWithPromise('GetMetadata', null).then(function transportMetadata(results) {
return {
info: results[0],
metadata: results[1] ? new _metadata.Metadata(results[1]) : null
};
});
},
getStats: function WorkerTransport_getStats() {
return this.messageHandler.sendWithPromise('GetStats', null);
},
startCleanup: function WorkerTransport_startCleanup() {
var _this14 = this;
this.messageHandler.sendWithPromise('Cleanup', null).then(function () {
for (var i = 0, ii = _this14.pageCache.length; i < ii; i++) {
var page = _this14.pageCache[i];
if (page) {
page.cleanup();
}
}
_this14.commonObjs.clear();
_this14.fontLoader.clear();
});
}
};
return WorkerTransport;
}();
var PDFObjects = function PDFObjectsClosure() {
function PDFObjects() {
this.objs = Object.create(null);
}
PDFObjects.prototype = {
ensureObj: function PDFObjects_ensureObj(objId) {
if (this.objs[objId]) {
return this.objs[objId];
}
var obj = {
capability: (0, _util.createPromiseCapability)(),
data: null,
resolved: false
};
this.objs[objId] = obj;
return obj;
},
get: function PDFObjects_get(objId, callback) {
if (callback) {
this.ensureObj(objId).capability.promise.then(callback);
return null;
}
var obj = this.objs[objId];
Iif (!obj || !obj.resolved) {
throw new Error('Requesting object that isn\'t resolved yet ' + objId);
}
return obj.data;
},
resolve: function PDFObjects_resolve(objId, data) {
var obj = this.ensureObj(objId);
obj.resolved = true;
obj.data = data;
obj.capability.resolve(data);
},
isResolved: function PDFObjects_isResolved(objId) {
var objs = this.objs;
Eif (!objs[objId]) {
return false;
}
return objs[objId].resolved;
},
hasData: function PDFObjects_hasData(objId) {
return this.isResolved(objId);
},
getData: function PDFObjects_getData(objId) {
var objs = this.objs;
if (!objs[objId] || !objs[objId].resolved) {
return null;
}
return objs[objId].data;
},
clear: function PDFObjects_clear() {
this.objs = Object.create(null);
}
};
return PDFObjects;
}();
var RenderTask = function RenderTaskClosure() {
function RenderTask(internalRenderTask) {
this._internalRenderTask = internalRenderTask;
this.onContinue = null;
}
RenderTask.prototype = {
get promise() {
return this._internalRenderTask.capability.promise;
},
cancel: function RenderTask_cancel() {
this._internalRenderTask.cancel();
},
then: function RenderTask_then(onFulfilled, onRejected) {
return this.promise.then.apply(this.promise, arguments);
}
};
return RenderTask;
}();
var InternalRenderTask = function InternalRenderTaskClosure() {
var canvasInRendering = new WeakMap();
function InternalRenderTask(callback, params, objs, commonObjs, operatorList, pageNumber, canvasFactory, webGLContext) {
this.callback = callback;
this.params = params;
this.objs = objs;
this.commonObjs = commonObjs;
this.operatorListIdx = null;
this.operatorList = operatorList;
this.pageNumber = pageNumber;
this.canvasFactory = canvasFactory;
this.webGLContext = webGLContext;
this.running = false;
this.graphicsReadyCallback = null;
this.graphicsReady = false;
this.useRequestAnimationFrame = false;
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;
}
InternalRenderTask.prototype = {
initializeGraphics: function InternalRenderTask_initializeGraphics(transparency) {
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.set(this._canvas, this);
}
if (this.cancelled) {
return;
}
if ((0, _dom_utils.getDefaultSetting)('pdfBug') && _global_scope2.default.StepperManager && _global_scope2.default.StepperManager.enabled) {
this.stepper = _global_scope2.default.StepperManager.create(this.pageNumber - 1);
this.stepper.init(this.operatorList);
this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
}
var params = this.params;
this.gfx = new _canvas.CanvasGraphics(params.canvasContext, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext, params.imageLayer);
this.gfx.beginDrawing({
transform: params.transform,
viewport: params.viewport,
transparency: transparency,
background: params.background
});
this.operatorListIdx = 0;
this.graphicsReady = true;
if (this.graphicsReadyCallback) {
this.graphicsReadyCallback();
}
},
cancel: function InternalRenderTask_cancel() {
this.running = false;
this.cancelled = true;
if (this._canvas) {
canvasInRendering.delete(this._canvas);
}
this.callback(new _dom_utils.RenderingCancelledException('Rendering cancelled, page ' + this.pageNumber, 'canvas'));
},
operatorListChanged: function InternalRenderTask_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: function InternalRenderTask__continue() {
this.running = true;
if (this.cancelled) {
return;
}
if (this.task.onContinue) {
this.task.onContinue(this._scheduleNextBound);
} else {
this._scheduleNext();
}
},
_scheduleNext: function InternalRenderTask__scheduleNext() {
if (this.useRequestAnimationFrame && typeof window !== 'undefined') {
window.requestAnimationFrame(this._nextBound);
} else {
Promise.resolve(undefined).then(this._nextBound);
}
},
_next: function InternalRenderTask__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;
}();
var version, build;
{
exports.version = version = '2.0.213';
exports.build = build = '82ae361';
}
exports.getDocument = getDocument;
exports.LoopbackPort = LoopbackPort;
exports.PDFDataRangeTransport = PDFDataRangeTransport;
exports.PDFWorker = PDFWorker;
exports.PDFDocumentProxy = PDFDocumentProxy;
exports.PDFPageProxy = PDFPageProxy;
exports.setPDFNetworkStreamClass = setPDFNetworkStreamClass;
exports.version = version;
exports.build = build; |