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app.js
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/* Copyright 2012 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.
*/
import {
animationStarted,
apiPageLayoutToViewerModes,
apiPageModeToSidebarView,
AutoPrintRegExp,
DEFAULT_SCALE_VALUE,
getActiveOrFocusedElement,
isValidRotation,
isValidScrollMode,
isValidSpreadMode,
normalizeWheelEventDirection,
parseQueryString,
ProgressBar,
RendererType,
RenderingStates,
ScrollMode,
SidebarView,
SpreadMode,
TextLayerMode,
} from "./ui_utils.js";
import {
AnnotationEditorType,
build,
createPromiseCapability,
getDocument,
getFilenameFromUrl,
getPdfFilenameFromUrl,
GlobalWorkerOptions,
InvalidPDFException,
isDataScheme,
isPdfFile,
loadScript,
MissingPDFException,
OPS,
PDFWorker,
shadow,
UnexpectedResponseException,
version,
} from "pdfjs-lib";
import { AppOptions, OptionKind } from "./app_options.js";
import { AutomationEventBus, EventBus } from "./event_utils.js";
import { CursorTool, PDFCursorTools } from "./pdf_cursor_tools.js";
import { LinkTarget, PDFLinkService } from "./pdf_link_service.js";
import { AnnotationEditorParams } from "./annotation_editor_params.js";
import { OverlayManager } from "./overlay_manager.js";
import { PasswordPrompt } from "./password_prompt.js";
import { PDFAttachmentViewer } from "./pdf_attachment_viewer.js";
import { PDFDocumentProperties } from "./pdf_document_properties.js";
import { PDFFindBar } from "./pdf_find_bar.js";
import { PDFFindController } from "./pdf_find_controller.js";
import { PDFHistory } from "./pdf_history.js";
import { PDFLayerViewer } from "./pdf_layer_viewer.js";
import { PDFOutlineViewer } from "./pdf_outline_viewer.js";
import { PDFPresentationMode } from "./pdf_presentation_mode.js";
import { PDFRenderingQueue } from "./pdf_rendering_queue.js";
import { PDFScriptingManager } from "./pdf_scripting_manager.js";
import { PDFSidebar } from "./pdf_sidebar.js";
import { PDFSidebarResizer } from "./pdf_sidebar_resizer.js";
import { PDFThumbnailViewer } from "./pdf_thumbnail_viewer.js";
import { PDFViewer } from "./pdf_viewer.js";
import { SecondaryToolbar } from "./secondary_toolbar.js";
import { Toolbar } from "./toolbar.js";
import { ViewHistory } from "./view_history.js";
const DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000; // ms
const FORCE_PAGES_LOADED_TIMEOUT = 10000; // ms
const WHEEL_ZOOM_DISABLED_TIMEOUT = 1000; // ms
const ViewOnLoad = {
UNKNOWN: -1,
PREVIOUS: 0, // Default value.
INITIAL: 1,
};
const ViewerCssTheme = {
AUTOMATIC: 0, // Default value.
LIGHT: 1,
DARK: 2,
};
class DefaultExternalServices {
constructor() {
throw new Error("Cannot initialize DefaultExternalServices.");
}
static updateFindControlState(data) {}
static updateFindMatchesCount(data) {}
static initPassiveLoading(callbacks) {}
static reportTelemetry(data) {}
static createDownloadManager() {
throw new Error("Not implemented: createDownloadManager");
}
static createPreferences() {
throw new Error("Not implemented: createPreferences");
}
static createL10n(options) {
throw new Error("Not implemented: createL10n");
}
static createScripting(options) {
throw new Error("Not implemented: createScripting");
}
static get supportsIntegratedFind() {
return shadow(this, "supportsIntegratedFind", false);
}
static get supportsDocumentFonts() {
return shadow(this, "supportsDocumentFonts", true);
}
static get supportedMouseWheelZoomModifierKeys() {
return shadow(this, "supportedMouseWheelZoomModifierKeys", {
ctrlKey: true,
metaKey: true,
});
}
static get isInAutomation() {
return shadow(this, "isInAutomation", false);
}
static updateEditorStates(data) {
throw new Error("Not implemented: updateEditorStates");
}
}
const PDFViewerApplication = {
initialBookmark: document.location.hash.substring(1),
_initializedCapability: createPromiseCapability(),
appConfig: null,
pdfDocument: null,
pdfLoadingTask: null,
printService: null,
/** @type {PDFViewer} */
pdfViewer: null,
/** @type {PDFThumbnailViewer} */
pdfThumbnailViewer: null,
/** @type {PDFRenderingQueue} */
pdfRenderingQueue: null,
/** @type {PDFPresentationMode} */
pdfPresentationMode: null,
/** @type {PDFDocumentProperties} */
pdfDocumentProperties: null,
/** @type {PDFLinkService} */
pdfLinkService: null,
/** @type {PDFHistory} */
pdfHistory: null,
/** @type {PDFSidebar} */
pdfSidebar: null,
/** @type {PDFSidebarResizer} */
pdfSidebarResizer: null,
/** @type {PDFOutlineViewer} */
pdfOutlineViewer: null,
/** @type {PDFAttachmentViewer} */
pdfAttachmentViewer: null,
/** @type {PDFLayerViewer} */
pdfLayerViewer: null,
/** @type {PDFCursorTools} */
pdfCursorTools: null,
/** @type {PDFScriptingManager} */
pdfScriptingManager: null,
/** @type {ViewHistory} */
store: null,
/** @type {DownloadManager} */
downloadManager: null,
/** @type {OverlayManager} */
overlayManager: null,
/** @type {Preferences} */
preferences: null,
/** @type {Toolbar} */
toolbar: null,
/** @type {SecondaryToolbar} */
secondaryToolbar: null,
/** @type {EventBus} */
eventBus: null,
/** @type {IL10n} */
l10n: null,
/** @type {AnnotationEditorParams} */
annotationEditorParams: null,
isInitialViewSet: false,
downloadComplete: false,
isViewerEmbedded: window.parent !== window,
url: "",
baseUrl: "",
_downloadUrl: "",
externalServices: DefaultExternalServices,
_boundEvents: Object.create(null),
documentInfo: null,
metadata: null,
_contentDispositionFilename: null,
_contentLength: null,
_saveInProgress: false,
_wheelUnusedTicks: 0,
_PDFBug: null,
_hasAnnotationEditors: false,
_title: document.title,
_printAnnotationStoragePromise: null,
// Called once when the document is loaded.
async initialize(appConfig) {
this.preferences = this.externalServices.createPreferences();
this.appConfig = appConfig;
await this._readPreferences();
await this._parseHashParameters();
this._forceCssTheme();
await this._initializeL10n();
if (
this.isViewerEmbedded &&
AppOptions.get("externalLinkTarget") === LinkTarget.NONE
) {
// Prevent external links from "replacing" the viewer,
// when it's embedded in e.g. an <iframe> or an <object>.
AppOptions.set("externalLinkTarget", LinkTarget.TOP);
}
await this._initializeViewerComponents();
// Bind the various event handlers *after* the viewer has been
// initialized, to prevent errors if an event arrives too soon.
this.bindEvents();
this.bindWindowEvents();
// We can start UI localization now.
const appContainer = appConfig.appContainer || document.documentElement;
this.l10n.translate(appContainer).then(() => {
// Dispatch the 'localized' event on the `eventBus` once the viewer
// has been fully initialized and translated.
this.eventBus.dispatch("localized", { source: this });
});
this._initializedCapability.resolve();
},
/**
* @private
*/
async _readPreferences() {
if (
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC")
) {
if (AppOptions.get("disablePreferences")) {
// Give custom implementations of the default viewer a simpler way to
// opt-out of having the `Preferences` override existing `AppOptions`.
return;
}
if (AppOptions._hasUserOptions()) {
console.warn(
"_readPreferences: The Preferences may override manually set AppOptions; " +
'please use the "disablePreferences"-option in order to prevent that.'
);
}
}
try {
AppOptions.setAll(await this.preferences.getAll());
} catch (reason) {
console.error(`_readPreferences: "${reason?.message}".`);
}
},
/**
* Potentially parse special debugging flags in the hash section of the URL.
* @private
*/
async _parseHashParameters() {
if (!AppOptions.get("pdfBugEnabled")) {
return;
}
const hash = document.location.hash.substring(1);
if (!hash) {
return;
}
const { mainContainer, viewerContainer } = this.appConfig,
params = parseQueryString(hash);
if (params.get("disableworker") === "true") {
try {
await loadFakeWorker();
} catch (ex) {
console.error(`_parseHashParameters: "${ex.message}".`);
}
}
if (params.has("disablerange")) {
AppOptions.set("disableRange", params.get("disablerange") === "true");
}
if (params.has("disablestream")) {
AppOptions.set("disableStream", params.get("disablestream") === "true");
}
if (params.has("disableautofetch")) {
AppOptions.set(
"disableAutoFetch",
params.get("disableautofetch") === "true"
);
}
if (params.has("disablefontface")) {
AppOptions.set(
"disableFontFace",
params.get("disablefontface") === "true"
);
}
if (params.has("disablehistory")) {
AppOptions.set("disableHistory", params.get("disablehistory") === "true");
}
if (params.has("verbosity")) {
AppOptions.set("verbosity", params.get("verbosity") | 0);
}
if (params.has("textlayer")) {
switch (params.get("textlayer")) {
case "off":
AppOptions.set("textLayerMode", TextLayerMode.DISABLE);
break;
case "visible":
case "shadow":
case "hover":
viewerContainer.classList.add(`textLayer-${params.get("textlayer")}`);
try {
await loadPDFBug(this);
this._PDFBug.loadCSS();
} catch (ex) {
console.error(`_parseHashParameters: "${ex.message}".`);
}
break;
}
}
if (params.has("pdfbug")) {
AppOptions.set("pdfBug", true);
AppOptions.set("fontExtraProperties", true);
const enabled = params.get("pdfbug").split(",");
try {
await loadPDFBug(this);
this._PDFBug.init({ OPS }, mainContainer, enabled);
} catch (ex) {
console.error(`_parseHashParameters: "${ex.message}".`);
}
}
// It is not possible to change locale for the (various) extension builds.
if (
(typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC")) &&
params.has("locale")
) {
AppOptions.set("locale", params.get("locale"));
}
},
/**
* @private
*/
async _initializeL10n() {
this.l10n = this.externalServices.createL10n(
typeof PDFJSDev === "undefined" || PDFJSDev.test("!PRODUCTION || GENERIC")
? { locale: AppOptions.get("locale") }
: null
);
const dir = await this.l10n.getDirection();
document.getElementsByTagName("html")[0].dir = dir;
},
/**
* @private
*/
_forceCssTheme() {
const cssTheme = AppOptions.get("viewerCssTheme");
if (
cssTheme === ViewerCssTheme.AUTOMATIC ||
!Object.values(ViewerCssTheme).includes(cssTheme)
) {
return;
}
try {
const styleSheet = document.styleSheets[0];
const cssRules = styleSheet?.cssRules || [];
for (let i = 0, ii = cssRules.length; i < ii; i++) {
const rule = cssRules[i];
if (
rule instanceof CSSMediaRule &&
rule.media?.[0] === "(prefers-color-scheme: dark)"
) {
if (cssTheme === ViewerCssTheme.LIGHT) {
styleSheet.deleteRule(i);
return;
}
// cssTheme === ViewerCssTheme.DARK
const darkRules =
/^@media \(prefers-color-scheme: dark\) {\n\s*([\w\s-.,:;/\\{}()]+)\n}$/.exec(
rule.cssText
);
if (darkRules?.[1]) {
styleSheet.deleteRule(i);
styleSheet.insertRule(darkRules[1], i);
}
return;
}
}
} catch (reason) {
console.error(`_forceCssTheme: "${reason?.message}".`);
}
},
/**
* @private
*/
async _initializeViewerComponents() {
const { appConfig, externalServices } = this;
const eventBus = externalServices.isInAutomation
? new AutomationEventBus()
: new EventBus();
this.eventBus = eventBus;
this.overlayManager = new OverlayManager();
const pdfRenderingQueue = new PDFRenderingQueue();
pdfRenderingQueue.onIdle = this._cleanup.bind(this);
this.pdfRenderingQueue = pdfRenderingQueue;
const pdfLinkService = new PDFLinkService({
eventBus,
externalLinkTarget: AppOptions.get("externalLinkTarget"),
externalLinkRel: AppOptions.get("externalLinkRel"),
ignoreDestinationZoom: AppOptions.get("ignoreDestinationZoom"),
});
this.pdfLinkService = pdfLinkService;
const downloadManager = externalServices.createDownloadManager();
this.downloadManager = downloadManager;
const findController = new PDFFindController({
linkService: pdfLinkService,
eventBus,
});
this.findController = findController;
const pdfScriptingManager = new PDFScriptingManager({
eventBus,
sandboxBundleSrc:
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC || CHROME")
? AppOptions.get("sandboxBundleSrc")
: null,
scriptingFactory: externalServices,
docPropertiesLookup: this._scriptingDocProperties.bind(this),
});
this.pdfScriptingManager = pdfScriptingManager;
const container = appConfig.mainContainer,
viewer = appConfig.viewerContainer;
const annotationEditorMode = AppOptions.get("annotationEditorMode");
const pageColors =
AppOptions.get("forcePageColors") ||
window.matchMedia("(forced-colors: active)").matches
? {
background: AppOptions.get("pageColorsBackground"),
foreground: AppOptions.get("pageColorsForeground"),
}
: null;
this.pdfViewer = new PDFViewer({
container,
viewer,
eventBus,
renderingQueue: pdfRenderingQueue,
linkService: pdfLinkService,
downloadManager,
findController,
scriptingManager:
AppOptions.get("enableScripting") && pdfScriptingManager,
renderer:
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC")
? AppOptions.get("renderer")
: null,
l10n: this.l10n,
textLayerMode: AppOptions.get("textLayerMode"),
annotationMode: AppOptions.get("annotationMode"),
annotationEditorMode,
imageResourcesPath: AppOptions.get("imageResourcesPath"),
enablePrintAutoRotate: AppOptions.get("enablePrintAutoRotate"),
useOnlyCssZoom: AppOptions.get("useOnlyCssZoom"),
isOffscreenCanvasSupported: AppOptions.get("isOffscreenCanvasSupported"),
maxCanvasPixels: AppOptions.get("maxCanvasPixels"),
enablePermissions: AppOptions.get("enablePermissions"),
pageColors,
});
pdfRenderingQueue.setViewer(this.pdfViewer);
pdfLinkService.setViewer(this.pdfViewer);
pdfScriptingManager.setViewer(this.pdfViewer);
if (appConfig.sidebar?.thumbnailView) {
this.pdfThumbnailViewer = new PDFThumbnailViewer({
container: appConfig.sidebar.thumbnailView,
eventBus,
renderingQueue: pdfRenderingQueue,
linkService: pdfLinkService,
l10n: this.l10n,
pageColors,
});
pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer);
}
// The browsing history is only enabled when the viewer is standalone,
// i.e. not when it is embedded in a web page.
if (!this.isViewerEmbedded && !AppOptions.get("disableHistory")) {
this.pdfHistory = new PDFHistory({
linkService: pdfLinkService,
eventBus,
});
pdfLinkService.setHistory(this.pdfHistory);
}
if (!this.supportsIntegratedFind && appConfig.findBar) {
this.findBar = new PDFFindBar(appConfig.findBar, eventBus, this.l10n);
}
if (appConfig.annotationEditorParams) {
if (annotationEditorMode !== AnnotationEditorType.DISABLE) {
this.annotationEditorParams = new AnnotationEditorParams(
appConfig.annotationEditorParams,
eventBus
);
} else {
for (const id of ["editorModeButtons", "editorModeSeparator"]) {
document.getElementById(id)?.classList.add("hidden");
}
}
}
if (appConfig.documentProperties) {
this.pdfDocumentProperties = new PDFDocumentProperties(
appConfig.documentProperties,
this.overlayManager,
eventBus,
this.l10n,
/* fileNameLookup = */ () => {
return this._docFilename;
}
);
}
this.pdfCursorTools = new PDFCursorTools({
container,
eventBus,
cursorToolOnLoad: AppOptions.get("cursorToolOnLoad"),
});
if (appConfig.toolbar) {
this.toolbar = new Toolbar(appConfig.toolbar, eventBus, this.l10n);
}
if (appConfig.secondaryToolbar) {
this.secondaryToolbar = new SecondaryToolbar(
appConfig.secondaryToolbar,
eventBus,
this.externalServices
);
}
if (this.supportsFullscreen) {
this.pdfPresentationMode = new PDFPresentationMode({
container,
pdfViewer: this.pdfViewer,
eventBus,
});
}
if (appConfig.passwordOverlay) {
this.passwordPrompt = new PasswordPrompt(
appConfig.passwordOverlay,
this.overlayManager,
this.l10n,
this.isViewerEmbedded
);
}
if (appConfig.sidebar?.outlineView) {
this.pdfOutlineViewer = new PDFOutlineViewer({
container: appConfig.sidebar.outlineView,
eventBus,
linkService: pdfLinkService,
downloadManager,
});
}
if (appConfig.sidebar?.attachmentsView) {
this.pdfAttachmentViewer = new PDFAttachmentViewer({
container: appConfig.sidebar.attachmentsView,
eventBus,
downloadManager,
});
}
if (appConfig.sidebar?.layersView) {
this.pdfLayerViewer = new PDFLayerViewer({
container: appConfig.sidebar.layersView,
eventBus,
l10n: this.l10n,
});
}
if (appConfig.sidebar) {
this.pdfSidebar = new PDFSidebar({
elements: appConfig.sidebar,
pdfViewer: this.pdfViewer,
pdfThumbnailViewer: this.pdfThumbnailViewer,
eventBus,
l10n: this.l10n,
});
this.pdfSidebar.onToggled = this.forceRendering.bind(this);
this.pdfSidebarResizer = new PDFSidebarResizer(
appConfig.sidebarResizer,
eventBus,
this.l10n
);
}
},
run(config) {
this.initialize(config).then(webViewerInitialized);
},
get initialized() {
return this._initializedCapability.settled;
},
get initializedPromise() {
return this._initializedCapability.promise;
},
zoomIn(steps) {
if (this.pdfViewer.isInPresentationMode) {
return;
}
this.pdfViewer.increaseScale(steps, {
drawingDelay: AppOptions.get("defaultZoomDelay"),
});
},
zoomOut(steps) {
if (this.pdfViewer.isInPresentationMode) {
return;
}
this.pdfViewer.decreaseScale(steps, {
drawingDelay: AppOptions.get("defaultZoomDelay"),
});
},
zoomReset() {
if (this.pdfViewer.isInPresentationMode) {
return;
}
this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
},
get pagesCount() {
return this.pdfDocument ? this.pdfDocument.numPages : 0;
},
get page() {
return this.pdfViewer.currentPageNumber;
},
set page(val) {
this.pdfViewer.currentPageNumber = val;
},
get supportsPrinting() {
return PDFPrintServiceFactory.instance.supportsPrinting;
},
get supportsFullscreen() {
return shadow(this, "supportsFullscreen", document.fullscreenEnabled);
},
get supportsIntegratedFind() {
return this.externalServices.supportsIntegratedFind;
},
get supportsDocumentFonts() {
return this.externalServices.supportsDocumentFonts;
},
get loadingBar() {
const barElement = document.getElementById("loadingBar");
const bar = barElement ? new ProgressBar(barElement) : null;
return shadow(this, "loadingBar", bar);
},
get supportedMouseWheelZoomModifierKeys() {
return this.externalServices.supportedMouseWheelZoomModifierKeys;
},
initPassiveLoading() {
if (
typeof PDFJSDev === "undefined" ||
!PDFJSDev.test("MOZCENTRAL || CHROME")
) {
throw new Error("Not implemented: initPassiveLoading");
}
this.externalServices.initPassiveLoading({
onOpenWithTransport: (url, length, transport) => {
this.open(url, { length, range: transport });
},
onOpenWithData: (data, contentDispositionFilename) => {
if (isPdfFile(contentDispositionFilename)) {
this._contentDispositionFilename = contentDispositionFilename;
}
this.open(data);
},
onOpenWithURL: (url, length, originalUrl) => {
const file = originalUrl !== undefined ? { url, originalUrl } : url;
const args = length !== undefined ? { length } : null;
this.open(file, args);
},
onError: err => {
this.l10n.get("loading_error").then(msg => {
this._documentError(msg, err);
});
},
onProgress: (loaded, total) => {
this.progress(loaded / total);
},
});
},
setTitleUsingUrl(url = "", downloadUrl = null) {
this.url = url;
this.baseUrl = url.split("#")[0];
if (downloadUrl) {
this._downloadUrl =
downloadUrl === url ? this.baseUrl : downloadUrl.split("#")[0];
}
if (isDataScheme(url)) {
this._hideViewBookmark();
}
let title = getPdfFilenameFromUrl(url, "");
if (!title) {
try {
title = decodeURIComponent(getFilenameFromUrl(url)) || url;
} catch (ex) {
// decodeURIComponent may throw URIError,
// fall back to using the unprocessed url in that case
title = url;
}
}
this.setTitle(title);
},
setTitle(title = this._title) {
this._title = title;
if (this.isViewerEmbedded) {
// Embedded PDF viewers should not be changing their parent page's title.
return;
}
const editorIndicator =
this._hasAnnotationEditors && !this.pdfRenderingQueue.printing;
document.title = `${editorIndicator ? "* " : ""}${title}`;
},
get _docFilename() {
// Use `this.url` instead of `this.baseUrl` to perform filename detection
// based on the reference fragment as ultimate fallback if needed.
return this._contentDispositionFilename || getPdfFilenameFromUrl(this.url);
},
/**
* @private
*/
_hideViewBookmark() {
const { secondaryToolbar } = this.appConfig;
// URL does not reflect proper document location - hiding some buttons.
secondaryToolbar?.viewBookmarkButton.classList.add("hidden");
// Avoid displaying multiple consecutive separators in the secondaryToolbar.
if (secondaryToolbar?.presentationModeButton.classList.contains("hidden")) {
document.getElementById("viewBookmarkSeparator")?.classList.add("hidden");
}
},
/**
* Closes opened PDF document.
* @returns {Promise} - Returns the promise, which is resolved when all
* destruction is completed.
*/
async close() {
this._unblockDocumentLoadEvent();
this._hideViewBookmark();
if (!this.pdfLoadingTask) {
return;
}
if (
(typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) &&
this.pdfDocument?.annotationStorage.size > 0 &&
this._annotationStorageModified
) {
try {
// Trigger saving, to prevent data loss in forms; see issue 12257.
await this.save();
} catch (reason) {
// Ignoring errors, to ensure that document closing won't break.
}
}
const promises = [];
promises.push(this.pdfLoadingTask.destroy());
this.pdfLoadingTask = null;
if (this.pdfDocument) {
this.pdfDocument = null;
this.pdfThumbnailViewer?.setDocument(null);
this.pdfViewer.setDocument(null);
this.pdfLinkService.setDocument(null);
this.pdfDocumentProperties?.setDocument(null);
}
this.pdfLinkService.externalLinkEnabled = true;
this.store = null;
this.isInitialViewSet = false;
this.downloadComplete = false;
this.url = "";
this.baseUrl = "";
this._downloadUrl = "";
this.documentInfo = null;
this.metadata = null;
this._contentDispositionFilename = null;
this._contentLength = null;
this._saveInProgress = false;
this._hasAnnotationEditors = false;
promises.push(this.pdfScriptingManager.destroyPromise);
this.setTitle();
this.pdfSidebar?.reset();
this.pdfOutlineViewer?.reset();
this.pdfAttachmentViewer?.reset();
this.pdfLayerViewer?.reset();
this.pdfHistory?.reset();
this.findBar?.reset();
this.toolbar?.reset();
this.secondaryToolbar?.reset();
this._PDFBug?.cleanup();
await Promise.all(promises);
},
/**
* Opens PDF document specified by URL or array with additional arguments.
* @param {string|TypedArray|ArrayBuffer} file - PDF location or binary data.
* @param {Object} [args] - Additional arguments for the getDocument call,
* e.g. HTTP headers ('httpHeaders') or alternative
* data transport ('range').
* @returns {Promise} - Returns the promise, which is resolved when document
* is opened.
*/
async open(file, args) {
if (this.pdfLoadingTask) {
// We need to destroy already opened document.
await this.close();
}
// Set the necessary global worker parameters, using the available options.
const workerParameters = AppOptions.getAll(OptionKind.WORKER);
for (const key in workerParameters) {
GlobalWorkerOptions[key] = workerParameters[key];
}
const parameters = Object.create(null);
if (typeof file === "string") {
// URL
this.setTitleUsingUrl(file, /* downloadUrl = */ file);
parameters.url = file;
} else if (file && "byteLength" in file) {
// ArrayBuffer
parameters.data = file;
} else if (file.url && file.originalUrl) {
this.setTitleUsingUrl(file.originalUrl, /* downloadUrl = */ file.url);
parameters.url = file.url;
}
// Set the necessary API parameters, using the available options.
const apiParameters = AppOptions.getAll(OptionKind.API);
for (const key in apiParameters) {
let value = apiParameters[key];
if (key === "docBaseUrl" && !value) {
if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("PRODUCTION")) {
value = document.URL.split("#")[0];
} else if (PDFJSDev.test("MOZCENTRAL || CHROME")) {
value = this.baseUrl;
}
}
parameters[key] = value;
}
// Finally, update the API parameters with the arguments (if they exist).
if (args) {
for (const key in args) {
parameters[key] = args[key];
}
}
const loadingTask = getDocument(parameters);
this.pdfLoadingTask = loadingTask;
loadingTask.onPassword = (updateCallback, reason) => {
if (this.isViewerEmbedded) {
// The load event can't be triggered until the password is entered, so
// if the viewer is in an iframe and its visibility depends on the
// onload callback then the viewer never shows (bug 1801341).
this._unblockDocumentLoadEvent();
}
this.pdfLinkService.externalLinkEnabled = false;
this.passwordPrompt.setUpdateCallback(updateCallback, reason);
this.passwordPrompt.open();
};
loadingTask.onProgress = ({ loaded, total }) => {
this.progress(loaded / total);
};
return loadingTask.promise.then(
pdfDocument => {
this.load(pdfDocument);
},
reason => {
if (loadingTask !== this.pdfLoadingTask) {
return undefined; // Ignore errors for previously opened PDF files.
}
let key = "loading_error";
if (reason instanceof InvalidPDFException) {
key = "invalid_file_error";
} else if (reason instanceof MissingPDFException) {
key = "missing_file_error";
} else if (reason instanceof UnexpectedResponseException) {
key = "unexpected_response_error";
}
return this.l10n.get(key).then(msg => {
this._documentError(msg, { message: reason?.message });
throw reason;
});
}
);
},
/**
* @private
*/
_ensureDownloadComplete() {
if (this.pdfDocument && this.downloadComplete) {
return;
}
throw new Error("PDF document not downloaded.");
},
async download() {
const url = this._downloadUrl,
filename = this._docFilename;
try {
this._ensureDownloadComplete();
const data = await this.pdfDocument.getData();
const blob = new Blob([data], { type: "application/pdf" });
await this.downloadManager.download(blob, url, filename);
} catch (reason) {
// When the PDF document isn't ready, or the PDF file is still
// downloading, simply download using the URL.
await this.downloadManager.downloadUrl(url, filename);
}
},
async save() {
if (this._saveInProgress) {