/* 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.
*/
/* globals DEFAULT_URL, PDFBug, Stats */
'use strict';
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define('pdfjs-web/app', ['exports', 'pdfjs-web/ui_utils',
'pdfjs-web/download_manager', 'pdfjs-web/pdf_history',
'pdfjs-web/preferences', 'pdfjs-web/pdf_sidebar',
'pdfjs-web/view_history', 'pdfjs-web/pdf_thumbnail_viewer',
'pdfjs-web/secondary_toolbar', 'pdfjs-web/password_prompt',
'pdfjs-web/pdf_presentation_mode', 'pdfjs-web/pdf_document_properties',
'pdfjs-web/hand_tool', 'pdfjs-web/pdf_viewer',
'pdfjs-web/pdf_rendering_queue', 'pdfjs-web/pdf_link_service',
'pdfjs-web/pdf_outline_viewer', 'pdfjs-web/overlay_manager',
'pdfjs-web/pdf_attachment_viewer', 'pdfjs-web/pdf_find_controller',
'pdfjs-web/pdf_find_bar', 'pdfjs-web/dom_events', 'pdfjs-web/pdfjs'],
factory);
} else if (typeof exports !== 'undefined') {
factory(exports, require('./ui_utils.js'), require('./download_manager.js'),
require('./pdf_history.js'), require('./preferences.js'),
require('./pdf_sidebar.js'), require('./view_history.js'),
require('./pdf_thumbnail_viewer.js'), require('./secondary_toolbar.js'),
require('./password_prompt.js'), require('./pdf_presentation_mode.js'),
require('./pdf_document_properties.js'), require('./hand_tool.js'),
require('./pdf_viewer.js'), require('./pdf_rendering_queue.js'),
require('./pdf_link_service.js'), require('./pdf_outline_viewer.js'),
require('./overlay_manager.js'), require('./pdf_attachment_viewer.js'),
require('./pdf_find_controller.js'), require('./pdf_find_bar.js'),
require('./dom_events.js'), require('./pdfjs.js'));
} else {
factory((root.pdfjsWebApp = {}), root.pdfjsWebUIUtils,
root.pdfjsWebDownloadManager, root.pdfjsWebPDFHistory,
root.pdfjsWebPreferences, root.pdfjsWebPDFSidebar,
root.pdfjsWebViewHistory, root.pdfjsWebPDFThumbnailViewer,
root.pdfjsWebSecondaryToolbar, root.pdfjsWebPasswordPrompt,
root.pdfjsWebPDFPresentationMode, root.pdfjsWebPDFDocumentProperties,
root.pdfjsWebHandTool, root.pdfjsWebPDFViewer,
root.pdfjsWebPDFRenderingQueue, root.pdfjsWebPDFLinkService,
root.pdfjsWebPDFOutlineViewer, root.pdfjsWebOverlayManager,
root.pdfjsWebPDFAttachmentViewer, root.pdfjsWebPDFFindController,
root.pdfjsWebPDFFindBar, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
}
}(this, function (exports, uiUtilsLib, downloadManagerLib, pdfHistoryLib,
preferencesLib, pdfSidebarLib, viewHistoryLib,
pdfThumbnailViewerLib, secondaryToolbarLib, passwordPromptLib,
pdfPresentationModeLib, pdfDocumentPropertiesLib, handToolLib,
pdfViewerLib, pdfRenderingQueueLib, pdfLinkServiceLib,
pdfOutlineViewerLib, overlayManagerLib,
pdfAttachmentViewerLib, pdfFindControllerLib, pdfFindBarLib,
domEventsLib, pdfjsLib) {
var UNKNOWN_SCALE = uiUtilsLib.UNKNOWN_SCALE;
var DEFAULT_SCALE_VALUE = uiUtilsLib.DEFAULT_SCALE_VALUE;
var ProgressBar = uiUtilsLib.ProgressBar;
var getPDFFileNameFromURL = uiUtilsLib.getPDFFileNameFromURL;
var noContextMenuHandler = uiUtilsLib.noContextMenuHandler;
var mozL10n = uiUtilsLib.mozL10n;
var parseQueryString = uiUtilsLib.parseQueryString;
var PDFHistory = pdfHistoryLib.PDFHistory;
var Preferences = preferencesLib.Preferences;
var SidebarView = pdfSidebarLib.SidebarView;
var PDFSidebar = pdfSidebarLib.PDFSidebar;
var ViewHistory = viewHistoryLib.ViewHistory;
var PDFThumbnailViewer = pdfThumbnailViewerLib.PDFThumbnailViewer;
var SecondaryToolbar = secondaryToolbarLib.SecondaryToolbar;
var PasswordPrompt = passwordPromptLib.PasswordPrompt;
var PDFPresentationMode = pdfPresentationModeLib.PDFPresentationMode;
var PDFDocumentProperties = pdfDocumentPropertiesLib.PDFDocumentProperties;
var HandTool = handToolLib.HandTool;
var PresentationModeState = pdfViewerLib.PresentationModeState;
var PDFViewer = pdfViewerLib.PDFViewer;
var RenderingStates = pdfRenderingQueueLib.RenderingStates;
var PDFRenderingQueue = pdfRenderingQueueLib.PDFRenderingQueue;
var PDFLinkService = pdfLinkServiceLib.PDFLinkService;
var PDFOutlineViewer = pdfOutlineViewerLib.PDFOutlineViewer;
var OverlayManager = overlayManagerLib.OverlayManager;
var PDFAttachmentViewer = pdfAttachmentViewerLib.PDFAttachmentViewer;
var PDFFindController = pdfFindControllerLib.PDFFindController;
var PDFFindBar = pdfFindBarLib.PDFFindBar;
var getGlobalEventBus = domEventsLib.getGlobalEventBus;
var DEFAULT_SCALE_DELTA = 1.1;
var MIN_SCALE = 0.25;
var MAX_SCALE = 10.0;
var SCALE_SELECT_CONTAINER_PADDING = 8;
var SCALE_SELECT_PADDING = 22;
var PAGE_NUMBER_LOADING_INDICATOR = 'visiblePageIsLoading';
var DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
function configure(PDFJS) {
PDFJS.imageResourcesPath = './images/';
//#if (FIREFOX || MOZCENTRAL || GENERIC || CHROME)
//PDFJS.workerSrc = '../build/pdf.worker.js';
//#endif
//#if !PRODUCTION
PDFJS.cMapUrl = '../external/bcmaps/';
PDFJS.cMapPacked = true;
PDFJS.workerSrc = '../src/worker_loader.js';
//#else
//PDFJS.cMapUrl = '../web/cmaps/';
//PDFJS.cMapPacked = true;
//#endif
}
var DefaultExernalServices = {
updateFindControlState: function (data) {},
initPassiveLoading: function (callbacks) {},
fallback: function (data, callback) {},
reportTelemetry: function (data) {},
createDownloadManager: function () {
return new downloadManagerLib.DownloadManager();
},
supportsIntegratedFind: false,
supportsDocumentFonts: true,
supportsDocumentColors: true,
supportedMouseWheelZoomModifierKeys: {
ctrlKey: true,
metaKey: true,
}
};
var PDFViewerApplication = {
initialBookmark: document.location.hash.substring(1),
initialDestination: null,
initialized: false,
fellback: false,
appConfig: null,
pdfDocument: null,
pdfLoadingTask: null,
printing: false,
/** @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 {PDFOutlineViewer} */
pdfOutlineViewer: null,
/** @type {PDFAttachmentViewer} */
pdfAttachmentViewer: null,
/** @type {ViewHistory} */
store: null,
/** @type {DownloadManager} */
downloadManager: null,
/** @type {EventBus} */
eventBus: null,
pageRotation: 0,
isInitialViewSet: false,
animationStartedPromise: null,
preferenceSidebarViewOnLoad: SidebarView.NONE,
preferencePdfBugEnabled: false,
preferenceShowPreviousViewOnLoad: true,
preferenceDefaultZoomValue: '',
isViewerEmbedded: (window.parent !== window),
url: '',
externalServices: DefaultExernalServices,
// called once when the document is loaded
initialize: function pdfViewInitialize(appConfig) {
configure(pdfjsLib.PDFJS);
this.appConfig = appConfig;
var eventBus = appConfig.eventBus || getGlobalEventBus();
this.eventBus = eventBus;
this.bindEvents();
var pdfRenderingQueue = new PDFRenderingQueue();
pdfRenderingQueue.onIdle = this.cleanup.bind(this);
this.pdfRenderingQueue = pdfRenderingQueue;
var pdfLinkService = new PDFLinkService({
eventBus: eventBus
});
this.pdfLinkService = pdfLinkService;
var downloadManager = this.externalServices.createDownloadManager();
this.downloadManager = downloadManager;
var container = appConfig.mainContainer;
var viewer = appConfig.viewerContainer;
this.pdfViewer = new PDFViewer({
container: container,
viewer: viewer,
eventBus: eventBus,
renderingQueue: pdfRenderingQueue,
linkService: pdfLinkService,
downloadManager: downloadManager
});
pdfRenderingQueue.setViewer(this.pdfViewer);
pdfLinkService.setViewer(this.pdfViewer);
var thumbnailContainer = appConfig.sidebar.thumbnailView;
this.pdfThumbnailViewer = new PDFThumbnailViewer({
container: thumbnailContainer,
renderingQueue: pdfRenderingQueue,
linkService: pdfLinkService
});
pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer);
Preferences.initialize();
this.preferences = Preferences;
this.pdfHistory = new PDFHistory({
linkService: pdfLinkService,
eventBus: this.eventBus
});
pdfLinkService.setHistory(this.pdfHistory);
this.findController = new PDFFindController({
pdfViewer: this.pdfViewer
});
this.findController.onUpdateResultsCount = function (matchCount) {
if (this.supportsIntegratedFind) {
return;
}
this.findBar.updateResultsCount(matchCount);
}.bind(this);
this.findController.onUpdateState = function (state, previous, matchCount) {
if (this.supportsIntegratedFind) {
this.externalServices.updateFindControlState(
{result: state, findPrevious: previous});
} else {
this.findBar.updateUIState(state, previous, matchCount);
}
}.bind(this);
this.pdfViewer.setFindController(this.findController);
// FIXME better PDFFindBar constructor parameters
var findBarConfig = Object.create(appConfig.findBar);
findBarConfig.findController = this.findController;
findBarConfig.eventBus = this.eventBus;
this.findBar = new PDFFindBar(findBarConfig);
this.overlayManager = OverlayManager;
this.handTool = new HandTool({
container: container,
eventBus: this.eventBus,
});
this.pdfDocumentProperties =
new PDFDocumentProperties(appConfig.documentProperties);
this.secondaryToolbar =
new SecondaryToolbar(appConfig.secondaryToolbar, eventBus);
if (this.supportsFullscreen) {
this.pdfPresentationMode = new PDFPresentationMode({
container: container,
viewer: viewer,
pdfViewer: this.pdfViewer,
eventBus: this.eventBus,
contextMenuItems: appConfig.fullscreen
});
}
this.passwordPrompt = new PasswordPrompt(appConfig.passwordOverlay);
this.pdfOutlineViewer = new PDFOutlineViewer({
container: appConfig.sidebar.outlineView,
eventBus: this.eventBus,
linkService: pdfLinkService,
});
this.pdfAttachmentViewer = new PDFAttachmentViewer({
container: appConfig.sidebar.attachmentsView,
eventBus: this.eventBus,
downloadManager: downloadManager
});
// FIXME better PDFSidebar constructor parameters
var sidebarConfig = Object.create(appConfig.sidebar);
sidebarConfig.pdfViewer = this.pdfViewer;
sidebarConfig.pdfThumbnailViewer = this.pdfThumbnailViewer;
sidebarConfig.pdfOutlineViewer = this.pdfOutlineViewer;
sidebarConfig.eventBus = this.eventBus;
this.pdfSidebar = new PDFSidebar(sidebarConfig);
this.pdfSidebar.onToggled = this.forceRendering.bind(this);
var self = this;
var PDFJS = pdfjsLib.PDFJS;
var initializedPromise = Promise.all([
Preferences.get('enableWebGL').then(function resolved(value) {
PDFJS.disableWebGL = !value;
}),
Preferences.get('sidebarViewOnLoad').then(function resolved(value) {
self.preferenceSidebarViewOnLoad = value;
}),
Preferences.get('pdfBugEnabled').then(function resolved(value) {
self.preferencePdfBugEnabled = value;
}),
Preferences.get('showPreviousViewOnLoad').then(function resolved(value) {
self.preferenceShowPreviousViewOnLoad = value;
}),
Preferences.get('defaultZoomValue').then(function resolved(value) {
self.preferenceDefaultZoomValue = value;
}),
Preferences.get('disableTextLayer').then(function resolved(value) {
if (PDFJS.disableTextLayer === true) {
return;
}
PDFJS.disableTextLayer = value;
}),
Preferences.get('disableRange').then(function resolved(value) {
if (PDFJS.disableRange === true) {
return;
}
PDFJS.disableRange = value;
}),
Preferences.get('disableStream').then(function resolved(value) {
if (PDFJS.disableStream === true) {
return;
}
PDFJS.disableStream = value;
}),
Preferences.get('disableAutoFetch').then(function resolved(value) {
PDFJS.disableAutoFetch = value;
}),
Preferences.get('disableFontFace').then(function resolved(value) {
if (PDFJS.disableFontFace === true) {
return;
}
PDFJS.disableFontFace = value;
}),
Preferences.get('useOnlyCssZoom').then(function resolved(value) {
PDFJS.useOnlyCssZoom = value;
}),
Preferences.get('externalLinkTarget').then(function resolved(value) {
if (PDFJS.isExternalLinkTargetSet()) {
return;
}
PDFJS.externalLinkTarget = value;
}),
// TODO move more preferences and other async stuff here
]).catch(function (reason) { });
return initializedPromise.then(function () {
if (self.isViewerEmbedded && !PDFJS.isExternalLinkTargetSet()) {
// Prevent external links from "replacing" the viewer,
// when it's embedded in e.g. an iframe or an object.
PDFJS.externalLinkTarget = PDFJS.LinkTarget.TOP;
}
self.initialized = true;
});
},
run: function pdfViewRun(config) {
this.initialize(config).then(webViewerInitialized);
},
zoomIn: function pdfViewZoomIn(ticks) {
var newScale = this.pdfViewer.currentScale;
do {
newScale = (newScale * DEFAULT_SCALE_DELTA).toFixed(2);
newScale = Math.ceil(newScale * 10) / 10;
newScale = Math.min(MAX_SCALE, newScale);
} while (--ticks > 0 && newScale < MAX_SCALE);
this.pdfViewer.currentScaleValue = newScale;
},
zoomOut: function pdfViewZoomOut(ticks) {
var newScale = this.pdfViewer.currentScale;
do {
newScale = (newScale / DEFAULT_SCALE_DELTA).toFixed(2);
newScale = Math.floor(newScale * 10) / 10;
newScale = Math.max(MIN_SCALE, newScale);
} while (--ticks > 0 && newScale > MIN_SCALE);
this.pdfViewer.currentScaleValue = newScale;
},
get pagesCount() {
return this.pdfDocument.numPages;
},
set page(val) {
this.pdfLinkService.page = val;
},
get page() { // TODO remove
return this.pdfLinkService.page;
},
get supportsPrinting() {
var canvas = document.createElement('canvas');
var value = 'mozPrintCallback' in canvas;
return pdfjsLib.shadow(this, 'supportsPrinting', value);
},
get supportsFullscreen() {
//#if MOZCENTRAL
// var support = document.fullscreenEnabled === true;
//#else
var doc = document.documentElement;
var support = !!(doc.requestFullscreen || doc.mozRequestFullScreen ||
doc.webkitRequestFullScreen || doc.msRequestFullscreen);
if (document.fullscreenEnabled === false ||
document.mozFullScreenEnabled === false ||
document.webkitFullscreenEnabled === false ||
document.msFullscreenEnabled === false) {
support = false;
}
//#endif
if (support && pdfjsLib.PDFJS.disableFullscreen === true) {
support = false;
}
return pdfjsLib.shadow(this, 'supportsFullscreen', support);
},
get supportsIntegratedFind() {
return this.externalServices.supportsIntegratedFind;
},
get supportsDocumentFonts() {
return this.externalServices.supportsDocumentFonts;
},
get supportsDocumentColors() {
return this.externalServices.supportsDocumentColors;
},
get loadingBar() {
var bar = new ProgressBar('#loadingBar', {});
return pdfjsLib.shadow(this, 'loadingBar', bar);
},
get supportedMouseWheelZoomModifierKeys() {
return this.externalServices.supportedMouseWheelZoomModifierKeys;
},
//#if (FIREFOX || MOZCENTRAL || CHROME)
initPassiveLoading: function pdfViewInitPassiveLoading() {
this.externalServices.initPassiveLoading({
onOpenWithTransport: function (url, length, transport) {
PDFViewerApplication.open(url, {range: transport});
if (length) {
PDFViewerApplication.pdfDocumentProperties.setFileSize(length);
}
},
onOpenWithData: function (data) {
PDFViewerApplication.open(data);
},
onOpenWithURL: function (url, length, originalURL) {
var file = url, args = null;
if (length !== undefined) {
args = {length: length};
}
if (originalURL !== undefined) {
file = {file: url, originalURL: originalURL};
}
PDFViewerApplication.open(file, args);
},
onError: function (e) {
PDFViewerApplication.error(mozL10n.get('loading_error', null,
'An error occurred while loading the PDF.'), e);
},
onProgress: function (loaded, total) {
PDFViewerApplication.progress(loaded / total);
}
});
},
//#endif
setTitleUsingUrl: function pdfViewSetTitleUsingUrl(url) {
this.url = url;
try {
this.setTitle(decodeURIComponent(
pdfjsLib.getFilenameFromUrl(url)) || url);
} catch (e) {
// decodeURIComponent may throw URIError,
// fall back to using the unprocessed url in that case
this.setTitle(url);
}
},
setTitle: function pdfViewSetTitle(title) {
if (this.isViewerEmbedded) {
// Embedded PDF viewers should not be changing their parent page's title.
return;
}
document.title = title;
},
/**
* Closes opened PDF document.
* @returns {Promise} - Returns the promise, which is resolved when all
* destruction is completed.
*/
close: function pdfViewClose() {
var errorWrapper = this.appConfig.errorWrapper.container;
errorWrapper.setAttribute('hidden', 'true');
if (!this.pdfLoadingTask) {
return Promise.resolve();
}
var promise = this.pdfLoadingTask.destroy();
this.pdfLoadingTask = null;
if (this.pdfDocument) {
this.pdfDocument = null;
this.pdfThumbnailViewer.setDocument(null);
this.pdfViewer.setDocument(null);
this.pdfLinkService.setDocument(null, null);
}
this.store = null;
this.isInitialViewSet = false;
this.pdfSidebar.reset();
this.pdfOutlineViewer.reset();
this.pdfAttachmentViewer.reset();
this.findController.reset();
this.findBar.reset();
if (typeof PDFBug !== 'undefined') {
PDFBug.cleanup();
}
return promise;
},
/**
* Opens PDF document specified by URL or array with additional arguments.
* @param {string|TypedArray|ArrayBuffer} file - PDF location or binary data.
* @param {Object} args - (optional) 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.
*/
open: function pdfViewOpen(file, args) {
var scale = 0;
if (arguments.length > 2 || typeof args === 'number') {
console.warn('Call of open() with obsolete signature.');
if (typeof args === 'number') {
scale = args; // scale argument was found
}
args = arguments[4] || null;
if (arguments[3] && typeof arguments[3] === 'object') {
// The pdfDataRangeTransport argument is present.
args = Object.create(args);
args.range = arguments[3];
}
if (typeof arguments[2] === 'string') {
// The password argument is present.
args = Object.create(args);
args.password = arguments[2];
}
}
if (this.pdfLoadingTask) {
// We need to destroy already opened document.
return this.close().then(function () {
// Reload the preferences if a document was previously opened.
Preferences.reload();
// ... and repeat the open() call.
return this.open(file, args);
}.bind(this));
}
var parameters = Object.create(null);
if (typeof file === 'string') { // URL
this.setTitleUsingUrl(file);
parameters.url = file;
} else if (file && 'byteLength' in file) { // ArrayBuffer
parameters.data = file;
} else if (file.url && file.originalUrl) {
this.setTitleUsingUrl(file.originalUrl);
parameters.url = file.url;
}
if (args) {
for (var prop in args) {
parameters[prop] = args[prop];
}
}
var self = this;
self.downloadComplete = false;
var loadingTask = pdfjsLib.getDocument(parameters);
this.pdfLoadingTask = loadingTask;
loadingTask.onPassword = function passwordNeeded(updateCallback, reason) {
self.passwordPrompt.setUpdateCallback(updateCallback, reason);
self.passwordPrompt.open();
};
loadingTask.onProgress = function getDocumentProgress(progressData) {
self.progress(progressData.loaded / progressData.total);
};
// Listen for unsupported features to trigger the fallback UI.
loadingTask.onUnsupportedFeature = this.fallback.bind(this);
var result = loadingTask.promise.then(
function getDocumentCallback(pdfDocument) {
self.load(pdfDocument, scale);
},
function getDocumentError(exception) {
var message = exception && exception.message;
var loadingErrorMessage = mozL10n.get('loading_error', null,
'An error occurred while loading the PDF.');
if (exception instanceof pdfjsLib.InvalidPDFException) {
// change error message also for other builds
loadingErrorMessage = mozL10n.get('invalid_file_error', null,
'Invalid or corrupted PDF file.');
} else if (exception instanceof pdfjsLib.MissingPDFException) {
// special message for missing PDF's
loadingErrorMessage = mozL10n.get('missing_file_error', null,
'Missing PDF file.');
} else if (exception instanceof pdfjsLib.UnexpectedResponseException) {
loadingErrorMessage = mozL10n.get('unexpected_response_error', null,
'Unexpected server response.');
}
var moreInfo = {
message: message
};
self.error(loadingErrorMessage, moreInfo);
throw new Error(loadingErrorMessage);
}
);
if (args && args.length) {
PDFViewerApplication.pdfDocumentProperties.setFileSize(args.length);
}
return result;
},
download: function pdfViewDownload() {
function downloadByUrl() {
downloadManager.downloadUrl(url, filename);
}
var url = this.url.split('#')[0];
var filename = getPDFFileNameFromURL(url);
var downloadManager = this.downloadManager;
downloadManager.onerror = function (err) {
// This error won't really be helpful because it's likely the
// fallback won't work either (or is already open).
PDFViewerApplication.error('PDF failed to download.');
};
if (!this.pdfDocument) { // the PDF is not ready yet
downloadByUrl();
return;
}
if (!this.downloadComplete) { // the PDF is still downloading
downloadByUrl();
return;
}
this.pdfDocument.getData().then(
function getDataSuccess(data) {
var blob = pdfjsLib.createBlob(data, 'application/pdf');
downloadManager.download(blob, url, filename);
},
downloadByUrl // Error occurred try downloading with just the url.
).then(null, downloadByUrl);
},
fallback: function pdfViewFallback(featureId) {
//#if !PRODUCTION
if (true) {
return;
}
//#endif
//#if (FIREFOX || MOZCENTRAL)
// Only trigger the fallback once so we don't spam the user with messages
// for one PDF.
if (this.fellback) {
return;
}
this.fellback = true;
var url = this.url.split('#')[0];
this.externalServices.fallback({ featureId: featureId, url: url },
function response(download) {
if (!download) {
return;
}
PDFViewerApplication.download();
});
//#endif
},
/**
* Show the error box.
* @param {String} message A message that is human readable.
* @param {Object} moreInfo (optional) Further information about the error
* that is more technical. Should have a 'message'
* and optionally a 'stack' property.
*/
error: function pdfViewError(message, moreInfo) {
var moreInfoText = mozL10n.get('error_version_info',
{version: pdfjsLib.version || '?', build: pdfjsLib.build || '?'},
'PDF.js v{{version}} (build: {{build}})') + '\n';
if (moreInfo) {
moreInfoText +=
mozL10n.get('error_message', {message: moreInfo.message},
'Message: {{message}}');
if (moreInfo.stack) {
moreInfoText += '\n' +
mozL10n.get('error_stack', {stack: moreInfo.stack},
'Stack: {{stack}}');
} else {
if (moreInfo.filename) {
moreInfoText += '\n' +
mozL10n.get('error_file', {file: moreInfo.filename},
'File: {{file}}');
}
if (moreInfo.lineNumber) {
moreInfoText += '\n' +
mozL10n.get('error_line', {line: moreInfo.lineNumber},
'Line: {{line}}');
}
}
}
//#if !(FIREFOX || MOZCENTRAL)
var errorWrapperConfig = this.appConfig.errorWrapper;
var errorWrapper = errorWrapperConfig.container;
errorWrapper.removeAttribute('hidden');
var errorMessage = errorWrapperConfig.errorMessage;
errorMessage.textContent = message;
var closeButton = errorWrapperConfig.closeButton;
closeButton.onclick = function() {
errorWrapper.setAttribute('hidden', 'true');
};
var errorMoreInfo = errorWrapperConfig.errorMoreInfo;
var moreInfoButton = errorWrapperConfig.moreInfoButton;
var lessInfoButton = errorWrapperConfig.lessInfoButton;
moreInfoButton.onclick = function() {
errorMoreInfo.removeAttribute('hidden');
moreInfoButton.setAttribute('hidden', 'true');
lessInfoButton.removeAttribute('hidden');
errorMoreInfo.style.height = errorMoreInfo.scrollHeight + 'px';
};
lessInfoButton.onclick = function() {
errorMoreInfo.setAttribute('hidden', 'true');
moreInfoButton.removeAttribute('hidden');
lessInfoButton.setAttribute('hidden', 'true');
};
moreInfoButton.oncontextmenu = noContextMenuHandler;
lessInfoButton.oncontextmenu = noContextMenuHandler;
closeButton.oncontextmenu = noContextMenuHandler;
moreInfoButton.removeAttribute('hidden');
lessInfoButton.setAttribute('hidden', 'true');
errorMoreInfo.value = moreInfoText;
//#else
// console.error(message + '\n' + moreInfoText);
// this.fallback();
//#endif
},
progress: function pdfViewProgress(level) {
var percent = Math.round(level * 100);
// When we transition from full request to range requests, it's possible
// that we discard some of the loaded data. This can cause the loading
// bar to move backwards. So prevent this by only updating the bar if it
// increases.
if (percent > this.loadingBar.percent || isNaN(percent)) {
this.loadingBar.percent = percent;
// When disableAutoFetch is enabled, it's not uncommon for the entire file
// to never be fetched (depends on e.g. the file structure). In this case
// the loading bar will not be completely filled, nor will it be hidden.
// To prevent displaying a partially filled loading bar permanently, we
// hide it when no data has been loaded during a certain amount of time.
if (pdfjsLib.PDFJS.disableAutoFetch && percent) {
if (this.disableAutoFetchLoadingBarTimeout) {
clearTimeout(this.disableAutoFetchLoadingBarTimeout);
this.disableAutoFetchLoadingBarTimeout = null;
}
this.loadingBar.show();
this.disableAutoFetchLoadingBarTimeout = setTimeout(function () {
this.loadingBar.hide();
this.disableAutoFetchLoadingBarTimeout = null;
}.bind(this), DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT);
}
}
},
load: function pdfViewLoad(pdfDocument, scale) {
var self = this;
scale = scale || UNKNOWN_SCALE;
this.pdfDocument = pdfDocument;
this.pdfDocumentProperties.setDocumentAndUrl(pdfDocument, this.url);
var downloadedPromise = pdfDocument.getDownloadInfo().then(function() {
self.downloadComplete = true;
self.loadingBar.hide();
});
var pagesCount = pdfDocument.numPages;
var toolbarConfig = this.appConfig.toolbar;
toolbarConfig.numPages.textContent =
mozL10n.get('page_of', {pageCount: pagesCount}, 'of {{pageCount}}');
toolbarConfig.pageNumber.max = pagesCount;
var id = this.documentFingerprint = pdfDocument.fingerprint;
var store = this.store = new ViewHistory(id);
//#if GENERIC
var baseDocumentUrl = null;
//#endif
//#if (FIREFOX || MOZCENTRAL)
// var baseDocumentUrl = this.url.split('#')[0];
//#endif
//#if CHROME
// var baseDocumentUrl = location.href.split('#')[0];
//#endif
this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
var pdfViewer = this.pdfViewer;
pdfViewer.currentScale = scale;
pdfViewer.setDocument(pdfDocument);
var firstPagePromise = pdfViewer.firstPagePromise;
var pagesPromise = pdfViewer.pagesPromise;
var onePageRendered = pdfViewer.onePageRendered;
this.pageRotation = 0;
this.pdfThumbnailViewer.setDocument(pdfDocument);
firstPagePromise.then(function(pdfPage) {
downloadedPromise.then(function () {
self.eventBus.dispatch('documentload', {source: self});
});
self.loadingBar.setWidth(self.appConfig.viewerContainer);
if (!pdfjsLib.PDFJS.disableHistory && !self.isViewerEmbedded) {
// The browsing history is only enabled when the viewer is standalone,
// i.e. not when it is embedded in a web page.
if (!self.preferenceShowPreviousViewOnLoad) {
self.pdfHistory.clearHistoryState();
}
self.pdfHistory.initialize(self.documentFingerprint);
if (self.pdfHistory.initialDestination) {
self.initialDestination = self.pdfHistory.initialDestination;
} else if (self.pdfHistory.initialBookmark) {
self.initialBookmark = self.pdfHistory.initialBookmark;
}
}
var initialParams = {
destination: self.initialDestination,
bookmark: self.initialBookmark,
hash: null,
};
store.initializedPromise.then(function resolved() {
var storedHash = null, sidebarView = null;
if (self.preferenceShowPreviousViewOnLoad &&
store.get('exists', false)) {
var pageNum = store.get('page', '1');
var zoom = self.preferenceDefaultZoomValue ||
store.get('zoom', DEFAULT_SCALE_VALUE);
var left = store.get('scrollLeft', '0');
var top = store.get('scrollTop', '0');
storedHash = 'page=' + pageNum + '&zoom=' + zoom + ',' +
left + ',' + top;
sidebarView = store.get('sidebarView', SidebarView.NONE);
} else if (self.preferenceDefaultZoomValue) {
storedHash = 'page=1&zoom=' + self.preferenceDefaultZoomValue;
}
self.setInitialView(storedHash,
{ scale: scale, sidebarView: sidebarView });
initialParams.hash = storedHash;
// Make all navigation keys work on document load,
// unless the viewer is embedded in a web page.
if (!self.isViewerEmbedded) {
self.pdfViewer.focus();
}
}, function rejected(reason) {
console.error(reason);
self.setInitialView(null, { scale: scale });
});
// For documents with different page sizes,
// ensure that the correct location becomes visible on load.
pagesPromise.then(function resolved() {
if (!initialParams.destination && !initialParams.bookmark &&
!initialParams.hash) {
return;
}
if (self.hasEqualPageSizes) {
return;
}
self.initialDestination = initialParams.destination;
self.initialBookmark = initialParams.bookmark;
self.pdfViewer.currentScaleValue = self.pdfViewer.currentScaleValue;
self.setInitialView(initialParams.hash);
});
});
pagesPromise.then(function() {
if (self.supportsPrinting) {
pdfDocument.getJavaScript().then(function(javaScript) {
if (javaScript.length) {
console.warn('Warning: JavaScript is not supported');
self.fallback(pdfjsLib.UNSUPPORTED_FEATURES.javaScript);
}
// Hack to support auto printing.
var regex = /\bprint\s*\(/;
for (var i = 0, ii = javaScript.length; i < ii; i++) {
var js = javaScript[i];
if (js && regex.test(js)) {
setTimeout(function() {
window.print();
});
return;
}
}
});
}
});
Promise.all([onePageRendered, this.animationStartedPromise]).then(
function() {
pdfDocument.getOutline().then(function(outline) {
self.pdfOutlineViewer.render({ outline: outline });
});
pdfDocument.getAttachments().then(function(attachments) {
self.pdfAttachmentViewer.render({ attachments: attachments });
});
});
pdfDocument.getMetadata().then(function(data) {
var info = data.info, metadata = data.metadata;
self.documentInfo = info;
self.metadata = metadata;
// Provides some basic debug information
console.log('PDF ' + pdfDocument.fingerprint + ' [' +
info.PDFFormatVersion + ' ' + (info.Producer || '-').trim() +
' / ' + (info.Creator || '-').trim() + ']' +
' (PDF.js: ' + (pdfjsLib.version || '-') +
(!pdfjsLib.PDFJS.disableWebGL ? ' [WebGL]' : '') + ')');
var pdfTitle;
if (metadata && metadata.has('dc:title')) {
var title = metadata.get('dc:title');
// Ghostscript sometimes return 'Untitled', sets the title to 'Untitled'
if (title !== 'Untitled') {
pdfTitle = title;
}
}
if (!pdfTitle && info && info['Title']) {
pdfTitle = info['Title'];
}
if (pdfTitle) {
self.setTitle(pdfTitle + ' - ' + document.title);
}
if (info.IsAcroFormPresent) {
console.warn('Warning: AcroForm/XFA is not supported');
self.fallback(pdfjsLib.UNSUPPORTED_FEATURES.forms);
}
//#if !PRODUCTION
if (true) {
return;
}
//#endif
//#if (FIREFOX || MOZCENTRAL)
var versionId = String(info.PDFFormatVersion).slice(-1) | 0;
var generatorId = 0;
var KNOWN_GENERATORS = [
'acrobat distiller', 'acrobat pdfwriter', 'adobe livecycle',
'adobe pdf library', 'adobe photoshop', 'ghostscript', 'tcpdf',
'cairo', 'dvipdfm', 'dvips', 'pdftex', 'pdfkit', 'itext', 'prince',
'quarkxpress', 'mac os x', 'microsoft', 'openoffice', 'oracle',
'luradocument', 'pdf-xchange', 'antenna house', 'aspose.cells', 'fpdf'
];
if (info.Producer) {
KNOWN_GENERATORS.some(function (generator, s, i) {
if (generator.indexOf(s) < 0) {
return false;
}
generatorId = i + 1;
return true;
}.bind(null, info.Producer.toLowerCase()));
}
var formType = !info.IsAcroFormPresent ? null : info.IsXFAPresent ?
'xfa' : 'acroform';
self.externalServices.reportTelemetry({
type: 'documentInfo',
version: versionId,
generator: generatorId,
formType: formType
});
//#endif
});
},
setInitialView: function pdfViewSetInitialView(storedHash, options) {
var scale = options && options.scale;
var sidebarView = options && options.sidebarView;
this.isInitialViewSet = true;
// When opening a new file, when one is already loaded in the viewer,
// ensure that the 'pageNumber' element displays the correct value.
this.appConfig.toolbar.pageNumber.value = this.pdfViewer.currentPageNumber;
this.pdfSidebar.setInitialView(this.preferenceSidebarViewOnLoad ||
(sidebarView | 0));
if (this.initialDestination) {
this.pdfLinkService.navigateTo(this.initialDestination);
this.initialDestination = null;
} else if (this.initialBookmark) {
this.pdfLinkService.setHash(this.initialBookmark);
this.pdfHistory.push({ hash: this.initialBookmark }, true);
this.initialBookmark = null;
} else if (storedHash) {
this.pdfLinkService.setHash(storedHash);
} else if (scale) {
this.pdfViewer.currentScaleValue = scale;
this.page = 1;
}
if (!this.pdfViewer.currentScaleValue) {
// Scale was not initialized: invalid bookmark or scale was not specified.
// Setting the default one.
this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
}
},
cleanup: function pdfViewCleanup() {
if (!this.pdfDocument) {
return; // run cleanup when document is loaded
}
this.pdfViewer.cleanup();
this.pdfThumbnailViewer.cleanup();
this.pdfDocument.cleanup();
},
forceRendering: function pdfViewForceRendering() {
this.pdfRenderingQueue.printing = this.printing;
this.pdfRenderingQueue.isThumbnailViewEnabled =
this.pdfSidebar.isThumbnailViewVisible;
this.pdfRenderingQueue.renderHighestPriority();
},
beforePrint: function pdfViewSetupBeforePrint() {
if (!this.supportsPrinting) {
var printMessage = mozL10n.get('printing_not_supported', null,
'Warning: Printing is not fully supported by this browser.');
this.error(printMessage);
return;
}
var alertNotReady = false;
var i, ii;
if (!this.pdfDocument || !this.pagesCount) {
alertNotReady = true;
} else {
for (i = 0, ii = this.pagesCount; i < ii; ++i) {
if (!this.pdfViewer.getPageView(i).pdfPage) {
alertNotReady = true;
break;
}
}
}
if (alertNotReady) {
var notReadyMessage = mozL10n.get('printing_not_ready', null,
'Warning: The PDF is not fully loaded for printing.');
window.alert(notReadyMessage);
return;
}
this.printing = true;
this.forceRendering();
var printContainer = this.appConfig.printContainer;
var body = document.querySelector('body');
body.setAttribute('data-mozPrintCallback', true);
if (!this.hasEqualPageSizes) {
console.warn('Not all pages have the same size. The printed result ' +
'may be incorrect!');
}
// Insert a @page + size rule to make sure that the page size is correctly
// set. Note that we assume that all pages have the same size, because
// variable-size pages are not supported yet (at least in Chrome & Firefox).
// TODO(robwu): Use named pages when size calculation bugs get resolved
// (e.g. https://crbug.com/355116) AND when support for named pages is
// added (http://www.w3.org/TR/css3-page/#using-named-pages).
// In browsers where @page + size is not supported (such as Firefox,
// https://bugzil.la/851441), the next stylesheet will be ignored and the
// user has to select the correct paper size in the UI if wanted.
this.pageStyleSheet = document.createElement('style');
var pageSize = this.pdfViewer.getPageView(0).pdfPage.getViewport(1);
this.pageStyleSheet.textContent =
// "size:<width> <height>" is what we need. But also add "A4" because
// Firefox incorrectly reports support for the other value.
'@supports ((size:A4) and (size:1pt 1pt)) {' +
'@page { size: ' + pageSize.width + 'pt ' + pageSize.height + 'pt;}' +
'}';
body.appendChild(this.pageStyleSheet);
for (i = 0, ii = this.pagesCount; i < ii; ++i) {
this.pdfViewer.getPageView(i).beforePrint(printContainer);
}
//#if !PRODUCTION
if (true) {
return;
}
//#endif
//#if (FIREFOX || MOZCENTRAL)
this.externalServices.reportTelemetry({
type: 'print'
});
//#endif
},
// Whether all pages of the PDF have the same width and height.
get hasEqualPageSizes() {
var firstPage = this.pdfViewer.getPageView(0);
for (var i = 1, ii = this.pagesCount; i < ii; ++i) {
var pageView = this.pdfViewer.getPageView(i);
if (pageView.width !== firstPage.width ||
pageView.height !== firstPage.height) {
return false;
}
}
return true;
},
afterPrint: function pdfViewSetupAfterPrint() {
var div = this.appConfig.printContainer;
while (div.hasChildNodes()) {
div.removeChild(div.lastChild);
}
if (this.pageStyleSheet && this.pageStyleSheet.parentNode) {
this.pageStyleSheet.parentNode.removeChild(this.pageStyleSheet);
this.pageStyleSheet = null;
}
this.printing = false;
this.forceRendering();
},
rotatePages: function pdfViewRotatePages(delta) {
var pageNumber = this.page;
this.pageRotation = (this.pageRotation + 360 + delta) % 360;
this.pdfViewer.pagesRotation = this.pageRotation;
this.pdfThumbnailViewer.pagesRotation = this.pageRotation;
this.forceRendering();
this.pdfViewer.scrollPageIntoView(pageNumber);
},
requestPresentationMode: function pdfViewRequestPresentationMode() {
if (!this.pdfPresentationMode) {
return;
}
this.pdfPresentationMode.request();
},
/**
* @param {number} delta - The delta value from the mouse event.
*/
scrollPresentationMode: function pdfViewScrollPresentationMode(delta) {
if (!this.pdfPresentationMode) {
return;
}
this.pdfPresentationMode.mouseScroll(delta);
},
bindEvents: function pdfViewBindEvents() {
var eventBus = this.eventBus;
eventBus.on('resize', webViewerResize);
eventBus.on('localized', webViewerLocalized);
eventBus.on('hashchange', webViewerHashchange);
eventBus.on('beforeprint', this.beforePrint.bind(this));
eventBus.on('afterprint', this.afterPrint.bind(this));
eventBus.on('pagerendered', webViewerPageRendered);
eventBus.on('textlayerrendered', webViewerTextLayerRendered);
eventBus.on('updateviewarea', webViewerUpdateViewarea);
eventBus.on('pagechanging', webViewerPageChanging);
eventBus.on('scalechanging', webViewerScaleChanging);
eventBus.on('sidebarviewchanged', webViewerSidebarViewChanged);
eventBus.on('pagemode', webViewerPageMode);
eventBus.on('namedaction', webViewerNamedAction);
eventBus.on('presentationmodechanged', webViewerPresentationModeChanged);
eventBus.on('presentationmode', webViewerPresentationMode);
eventBus.on('openfile', webViewerOpenFile);
eventBus.on('print', webViewerPrint);
eventBus.on('download', webViewerDownload);
eventBus.on('firstpage', webViewerFirstPage);
eventBus.on('lastpage', webViewerLastPage);
eventBus.on('rotatecw', webViewerRotateCw);
eventBus.on('rotateccw', webViewerRotateCcw);
eventBus.on('documentproperties', webViewerDocumentProperties);
eventBus.on('find', webViewerFind);
eventBus.on('findfromurlhash', webViewerFindFromUrlHash);
//#if GENERIC
eventBus.on('fileinputchange', webViewerFileInputChange);
//#endif
}
};
//#if GENERIC
var HOSTED_VIEWER_ORIGINS = ['null',
'http://mozilla.github.io', 'https://mozilla.github.io'];
function validateFileURL(file) {
try {
var viewerOrigin = new URL(window.location.href).origin || 'null';
if (HOSTED_VIEWER_ORIGINS.indexOf(viewerOrigin) >= 0) {
// Hosted or local viewer, allow for any file locations
return;
}
var fileOrigin = new URL(file, window.location.href).origin;
// Removing of the following line will not guarantee that the viewer will
// start accepting URLs from foreign origin -- CORS headers on the remote
// server must be properly configured.
if (fileOrigin !== viewerOrigin) {
throw new Error('file origin does not match viewer\'s');
}
} catch (e) {
var message = e && e.message;
var loadingErrorMessage = mozL10n.get('loading_error', null,
'An error occurred while loading the PDF.');
var moreInfo = {
message: message
};
PDFViewerApplication.error(loadingErrorMessage, moreInfo);
throw e;
}
}
//#endif
function loadAndEnablePDFBug(enabledTabs) {
return new Promise(function (resolve, reject) {
var appConfig = PDFViewerApplication.appConfig;
var script = document.createElement('script');
script.src = appConfig.debuggerScriptPath;
script.onload = function () {
PDFBug.enable(enabledTabs);
PDFBug.init(pdfjsLib, appConfig.mainContainer);
resolve();
};
script.onerror = function () {
reject(new Error('Cannot load debugger at ' + script.src));
};
(document.getElementsByTagName('head')[0] || document.body).
appendChild(script);
});
}
function webViewerInitialized() {
//#if GENERIC
var queryString = document.location.search.substring(1);
var params = parseQueryString(queryString);
var file = 'file' in params ? params.file : DEFAULT_URL;
validateFileURL(file);
//#endif
//#if (FIREFOX || MOZCENTRAL)
//var file = window.location.href.split('#')[0];
//#endif
//#if CHROME
//var file = DEFAULT_URL;
//#endif
var waitForBeforeOpening = [];
var appConfig = PDFViewerApplication.appConfig;
//#if GENERIC
var fileInput = document.createElement('input');
fileInput.id = appConfig.openFileInputName;
fileInput.className = 'fileInput';
fileInput.setAttribute('type', 'file');
fileInput.oncontextmenu = noContextMenuHandler;
document.body.appendChild(fileInput);
if (!window.File || !window.FileReader || !window.FileList || !window.Blob) {
appConfig.toolbar.openFile.setAttribute('hidden', 'true');
appConfig.secondaryToolbar.openFileButton.setAttribute('hidden', 'true');
} else {
fileInput.value = null;
}
//#else
//appConfig.toolbar.openFile.setAttribute('hidden', 'true');
//appConfig.secondaryToolbar.openFileButton.setAttribute('hidden', 'true');
//#endif
var PDFJS = pdfjsLib.PDFJS;
//#if !PRODUCTION
if (true) {
//#else
//if (PDFViewerApplication.preferencePdfBugEnabled) {
//#endif
// Special debugging flags in the hash section of the URL.
var hash = document.location.hash.substring(1);
var hashParams = parseQueryString(hash);
if ('disableworker' in hashParams) {
PDFJS.disableWorker = (hashParams['disableworker'] === 'true');
}
if ('disablerange' in hashParams) {
PDFJS.disableRange = (hashParams['disablerange'] === 'true');
}
if ('disablestream' in hashParams) {
PDFJS.disableStream = (hashParams['disablestream'] === 'true');
}
if ('disableautofetch' in hashParams) {
PDFJS.disableAutoFetch = (hashParams['disableautofetch'] === 'true');
}
if ('disablefontface' in hashParams) {
PDFJS.disableFontFace = (hashParams['disablefontface'] === 'true');
}
if ('disablehistory' in hashParams) {
PDFJS.disableHistory = (hashParams['disablehistory'] === 'true');
}
if ('webgl' in hashParams) {
PDFJS.disableWebGL = (hashParams['webgl'] !== 'true');
}
if ('useonlycsszoom' in hashParams) {
PDFJS.useOnlyCssZoom = (hashParams['useonlycsszoom'] === 'true');
}
if ('verbosity' in hashParams) {
PDFJS.verbosity = hashParams['verbosity'] | 0;
}
if ('ignorecurrentpositiononzoom' in hashParams) {
PDFJS.ignoreCurrentPositionOnZoom =
(hashParams['ignorecurrentpositiononzoom'] === 'true');
}
//#if !PRODUCTION
if ('disablebcmaps' in hashParams && hashParams['disablebcmaps']) {
PDFJS.cMapUrl = '../external/cmaps/';
PDFJS.cMapPacked = false;
}
//#endif
//#if !(FIREFOX || MOZCENTRAL)
if ('locale' in hashParams) {
PDFJS.locale = hashParams['locale'];
}
//#endif
if ('textlayer' in hashParams) {
switch (hashParams['textlayer']) {
case 'off':
PDFJS.disableTextLayer = true;
break;
case 'visible':
case 'shadow':
case 'hover':
var viewer = appConfig.viewerContainer;
viewer.classList.add('textLayer-' + hashParams['textlayer']);
break;
}
}
if ('pdfbug' in hashParams) {
PDFJS.pdfBug = true;
var pdfBug = hashParams['pdfbug'];
var enabled = pdfBug.split(',');
waitForBeforeOpening.push(loadAndEnablePDFBug(enabled));
}
}
//#if !(FIREFOX || MOZCENTRAL)
mozL10n.setLanguage(PDFJS.locale);
//#endif
//#if (FIREFOX || MOZCENTRAL)
if (!PDFViewerApplication.supportsDocumentFonts) {
PDFJS.disableFontFace = true;
console.warn(mozL10n.get('web_fonts_disabled', null,
'Web fonts are disabled: unable to use embedded PDF fonts.'));
}
//#endif
if (!PDFViewerApplication.supportsPrinting) {
appConfig.toolbar.print.classList.add('hidden');
appConfig.secondaryToolbar.printButton.classList.add('hidden');
}
if (!PDFViewerApplication.supportsFullscreen) {
appConfig.toolbar.presentationModeButton.classList.add('hidden');
appConfig.secondaryToolbar.presentationModeButton.classList.add('hidden');
}
if (PDFViewerApplication.supportsIntegratedFind) {
appConfig.toolbar.viewFind.classList.add('hidden');
}
// Suppress context menus for some controls
appConfig.toolbar.scaleSelect.oncontextmenu = noContextMenuHandler;
appConfig.sidebar.mainContainer.addEventListener('transitionend',
function(e) {
if (e.target === /* mainContainer */ this) {
PDFViewerApplication.eventBus.dispatch('resize');
}
}, true);
appConfig.sidebar.toggleButton.addEventListener('click',
function() {
PDFViewerApplication.pdfSidebar.toggle();
});
appConfig.toolbar.previous.addEventListener('click',
function() {
PDFViewerApplication.page--;
});
appConfig.toolbar.next.addEventListener('click',
function() {
PDFViewerApplication.page++;
});
appConfig.toolbar.zoomIn.addEventListener('click',
function() {
PDFViewerApplication.zoomIn();
});
appConfig.toolbar.zoomOut.addEventListener('click',
function() {
PDFViewerApplication.zoomOut();
});
appConfig.toolbar.pageNumber.addEventListener('click', function() {
this.select();
});
appConfig.toolbar.pageNumber.addEventListener('change', function() {
// Handle the user inputting a floating point number.
PDFViewerApplication.page = (this.value | 0);
if (this.value !== (this.value | 0).toString()) {
this.value = PDFViewerApplication.page;
}
});
appConfig.toolbar.scaleSelect.addEventListener('change', function() {
if (this.value === 'custom') {
return;
}
PDFViewerApplication.pdfViewer.currentScaleValue = this.value;
});
appConfig.toolbar.presentationModeButton.addEventListener('click',
function (e) {
PDFViewerApplication.eventBus.dispatch('presentationmode');
});
appConfig.toolbar.openFile.addEventListener('click', function (e) {
PDFViewerApplication.eventBus.dispatch('openfile');
});
appConfig.toolbar.print.addEventListener('click', function (e) {
PDFViewerApplication.eventBus.dispatch('print');
});
appConfig.toolbar.download.addEventListener('click', function (e) {
PDFViewerApplication.eventBus.dispatch('download');
});
Promise.all(waitForBeforeOpening).then(function () {
webViewerOpenFileViaURL(file);
}).catch(function (reason) {
PDFViewerApplication.error(mozL10n.get('loading_error', null,
'An error occurred while opening.'), reason);
});
}
//#if GENERIC
function webViewerOpenFileViaURL(file) {
if (file && file.lastIndexOf('file:', 0) === 0) {
// file:-scheme. Load the contents in the main thread because QtWebKit
// cannot load file:-URLs in a Web Worker. file:-URLs are usually loaded
// very quickly, so there is no need to set up progress event listeners.
PDFViewerApplication.setTitleUsingUrl(file);
var xhr = new XMLHttpRequest();
xhr.onload = function() {
PDFViewerApplication.open(new Uint8Array(xhr.response));
};
try {
xhr.open('GET', file);
xhr.responseType = 'arraybuffer';
xhr.send();
} catch (e) {
PDFViewerApplication.error(mozL10n.get('loading_error', null,
'An error occurred while loading the PDF.'), e);
}
return;
}
if (file) {
PDFViewerApplication.open(file);
}
}
//#elif (FIREFOX || MOZCENTRAL || CHROME)
//function webViewerOpenFileViaURL(file) {
// PDFViewerApplication.setTitleUsingUrl(file);
// PDFViewerApplication.initPassiveLoading();
//}
//#else
//function webViewerOpenFileURL(file) {
// if (file) {
// throw new Error('Not implemented: webViewerOpenFileURL');
// }
//}
//#endif
function webViewerPageRendered(e) {
var pageNumber = e.pageNumber;
var pageIndex = pageNumber - 1;
var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
// Use the rendered page to set the corresponding thumbnail image.
if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
var thumbnailView = PDFViewerApplication.pdfThumbnailViewer.
getThumbnail(pageIndex);
thumbnailView.setImage(pageView);
}
if (pdfjsLib.PDFJS.pdfBug && Stats.enabled && pageView.stats) {
Stats.add(pageNumber, pageView.stats);
}
if (pageView.error) {
PDFViewerApplication.error(mozL10n.get('rendering_error', null,
'An error occurred while rendering the page.'), pageView.error);
}
// If the page is still visible when it has finished rendering,
// ensure that the page number input loading indicator is hidden.
if (pageNumber === PDFViewerApplication.page) {
var pageNumberInput = PDFViewerApplication.appConfig.toolbar.pageNumber;
pageNumberInput.classList.remove(PAGE_NUMBER_LOADING_INDICATOR);
}
//#if !PRODUCTION
if (true) {
return;
}
//#endif
//#if (FIREFOX || MOZCENTRAL)
PDFViewerApplication.externalServices.reportTelemetry({
type: 'pageInfo'
});
// It is a good time to report stream and font types.
PDFViewerApplication.pdfDocument.getStats().then(function (stats) {
PDFViewerApplication.externalServices.reportTelemetry({
type: 'documentStats',
stats: stats
});
});
//#endif
}
function webViewerTextLayerRendered(e) {
var pageIndex = e.pageNumber - 1;
var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
//#if !PRODUCTION
if (true) {
return;
}
//#endif
//#if (FIREFOX || MOZCENTRAL)
if (pageView.textLayer && pageView.textLayer.textDivs &&
pageView.textLayer.textDivs.length > 0 &&
!PDFViewerApplication.supportsDocumentColors) {
console.error(mozL10n.get('document_colors_not_allowed', null,
'PDF documents are not allowed to use their own colors: ' +
'\'Allow pages to choose their own colors\' ' +
'is deactivated in the browser.'));
PDFViewerApplication.fallback();
}
//#endif
}
function webViewerPageMode(e) {
if (!PDFViewerApplication.initialized) {
return;
}
// Handle the 'pagemode' hash parameter, see also `PDFLinkService_setHash`.
var mode = e.mode, view;
switch (mode) {
case 'thumbs':
view = SidebarView.THUMBS;
break;
case 'bookmarks':
case 'outline':
view = SidebarView.OUTLINE;
break;
case 'attachments':
view = SidebarView.ATTACHMENTS;
break;
case 'none':
view = SidebarView.NONE;
break;
default:
console.error('Invalid "pagemode" hash parameter: ' + mode);
return;
}
PDFViewerApplication.pdfSidebar.switchView(view, /* forceOpen = */ true);
}
function webViewerNamedAction(e) {
if (!PDFViewerApplication.initialized) {
return;
}
// Processing couple of named actions that might be useful.
// See also PDFLinkService.executeNamedAction
var action = e.action;
switch (action) {
case 'GoToPage':
PDFViewerApplication.appConfig.toolbar.pageNumber.focus();
break;
case 'Find':
if (!PDFViewerApplication.supportsIntegratedFind) {
PDFViewerApplication.findBar.toggle();
}
break;
}
}
function webViewerPresentationModeChanged(e) {
var active = e.active;
var switchInProgress = e.switchInProgress;
PDFViewerApplication.pdfViewer.presentationModeState =
switchInProgress ? PresentationModeState.CHANGING :
active ? PresentationModeState.FULLSCREEN : PresentationModeState.NORMAL;
}
function webViewerSidebarViewChanged(e) {
if (!PDFViewerApplication.initialized) {
return;
}
PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled =
PDFViewerApplication.pdfSidebar.isThumbnailViewVisible;
var store = PDFViewerApplication.store;
if (!store || !PDFViewerApplication.isInitialViewSet) {
// Only update the storage when the document has been loaded *and* rendered.
return;
}
store.initializedPromise.then(function() {
store.set('sidebarView', e.view).catch(function() {});
});
}
function webViewerUpdateViewarea(e) {
if (!PDFViewerApplication.initialized) {
return;
}
var location = e.location, store = PDFViewerApplication.store;
if (store) {
store.initializedPromise.then(function() {
store.setMultiple({
'exists': true,
'page': location.pageNumber,
'zoom': location.scale,
'scrollLeft': location.left,
'scrollTop': location.top,
}).catch(function() { /* unable to write to storage */ });
});
}
var href =
PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams);
PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href;
PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href =
href;
// Update the current bookmark in the browsing history.
PDFViewerApplication.pdfHistory.updateCurrentBookmark(location.pdfOpenParams,
location.pageNumber);
// Show/hide the loading indicator in the page number input element.
var pageNumberInput = PDFViewerApplication.appConfig.toolbar.pageNumber;
var currentPage =
PDFViewerApplication.pdfViewer.getPageView(PDFViewerApplication.page - 1);
if (currentPage.renderingState === RenderingStates.FINISHED) {
pageNumberInput.classList.remove(PAGE_NUMBER_LOADING_INDICATOR);
} else {
pageNumberInput.classList.add(PAGE_NUMBER_LOADING_INDICATOR);
}
}
window.addEventListener('resize', function webViewerResize(evt) {
PDFViewerApplication.eventBus.dispatch('resize');
});
function webViewerResize() {
if (PDFViewerApplication.initialized) {
var currentScaleValue = PDFViewerApplication.pdfViewer.currentScaleValue;
if (currentScaleValue === 'auto' ||
currentScaleValue === 'page-fit' ||
currentScaleValue === 'page-width') {
// Note: the scale is constant for 'page-actual'.
PDFViewerApplication.pdfViewer.currentScaleValue = currentScaleValue;
} else if (!currentScaleValue) {
// Normally this shouldn't happen, but if the scale wasn't initialized
// we set it to the default value in order to prevent any issues.
// (E.g. the document being rendered with the wrong scale on load.)
PDFViewerApplication.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
}
PDFViewerApplication.pdfViewer.update();
}
// Set the 'max-height' CSS property of the secondary toolbar.
var mainContainer = PDFViewerApplication.appConfig.mainContainer;
PDFViewerApplication.secondaryToolbar.setMaxHeight(mainContainer);
}
window.addEventListener('hashchange', function webViewerHashchange(evt) {
var hash = document.location.hash.substring(1);
PDFViewerApplication.eventBus.dispatch('hashchange', {hash: hash});
});
function webViewerHashchange(e) {
if (PDFViewerApplication.pdfHistory.isHashChangeUnlocked) {
var hash = e.hash;
if (!hash) {
return;
}
if (!PDFViewerApplication.isInitialViewSet) {
PDFViewerApplication.initialBookmark = hash;
} else {
PDFViewerApplication.pdfLinkService.setHash(hash);
}
}
}
//#if GENERIC
window.addEventListener('change', function webViewerChange(evt) {
var files = evt.target.files;
if (!files || files.length === 0) {
return;
}
PDFViewerApplication.eventBus.dispatch('fileinputchange',
{fileInput: evt.target});
}, true);
function webViewerFileInputChange(e) {
var file = e.fileInput.files[0];
if (!pdfjsLib.PDFJS.disableCreateObjectURL &&
typeof URL !== 'undefined' && URL.createObjectURL) {
PDFViewerApplication.open(URL.createObjectURL(file));
} else {
// Read the local file into a Uint8Array.
var fileReader = new FileReader();
fileReader.onload = function webViewerChangeFileReaderOnload(evt) {
var buffer = evt.target.result;
var uint8Array = new Uint8Array(buffer);
PDFViewerApplication.open(uint8Array);
};
fileReader.readAsArrayBuffer(file);
}
PDFViewerApplication.setTitleUsingUrl(file.name);
// URL does not reflect proper document location - hiding some icons.
var appConfig = PDFViewerApplication.appConfig;
appConfig.toolbar.viewBookmark.setAttribute('hidden', 'true');
appConfig.secondaryToolbar.viewBookmarkButton.setAttribute('hidden', 'true');
appConfig.toolbar.download.setAttribute('hidden', 'true');
appConfig.secondaryToolbar.downloadButton.setAttribute('hidden', 'true');
}
//#endif
function selectScaleOption(value) {
var options = PDFViewerApplication.appConfig.toolbar.scaleSelect.options;
var predefinedValueFound = false;
for (var i = 0, ii = options.length; i < ii; i++) {
var option = options[i];
if (option.value !== value) {
option.selected = false;
continue;
}
option.selected = true;
predefinedValueFound = true;
}
return predefinedValueFound;
}
window.addEventListener('localized', function localized(evt) {
PDFViewerApplication.eventBus.dispatch('localized');
});
function webViewerLocalized() {
document.getElementsByTagName('html')[0].dir = mozL10n.getDirection();
PDFViewerApplication.animationStartedPromise.then(function() {
// Adjust the width of the zoom box to fit the content.
// Note: If the window is narrow enough that the zoom box is not visible,
// we temporarily show it to be able to adjust its width.
var container = PDFViewerApplication.appConfig.toolbar.scaleSelectContainer;
if (container.clientWidth === 0) {
container.setAttribute('style', 'display: inherit;');
}
if (container.clientWidth > 0) {
var select = PDFViewerApplication.appConfig.toolbar.scaleSelect;
select.setAttribute('style', 'min-width: inherit;');
var width = select.clientWidth + SCALE_SELECT_CONTAINER_PADDING;
select.setAttribute('style', 'min-width: ' +
(width + SCALE_SELECT_PADDING) + 'px;');
container.setAttribute('style', 'min-width: ' + width + 'px; ' +
'max-width: ' + width + 'px;');
}
// Set the 'max-height' CSS property of the secondary toolbar.
var mainContainer = PDFViewerApplication.appConfig.mainContainer;
PDFViewerApplication.secondaryToolbar.setMaxHeight(mainContainer);
});
}
function webViewerPresentationMode() {
PDFViewerApplication.requestPresentationMode();
}
function webViewerOpenFile() {
var openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
document.getElementById(openFileInputName).click();
}
function webViewerPrint() {
window.print();
}
function webViewerDownload() {
PDFViewerApplication.download();
}
function webViewerFirstPage() {
if (PDFViewerApplication.pdfDocument) {
PDFViewerApplication.page = 1;
}
}
function webViewerLastPage() {
if (PDFViewerApplication.pdfDocument) {
PDFViewerApplication.page = PDFViewerApplication.pagesCount;
}
}
function webViewerRotateCw() {
PDFViewerApplication.rotatePages(90);
}
function webViewerRotateCcw() {
PDFViewerApplication.rotatePages(-90);
}
function webViewerDocumentProperties() {
PDFViewerApplication.pdfDocumentProperties.open();
}
function webViewerFind(e) {
PDFViewerApplication.findController.executeCommand('find' + e.type, {
query: e.query,
phraseSearch: e.phraseSearch,
caseSensitive: e.caseSensitive,
highlightAll: e.highlightAll,
findPrevious: e.findPrevious
});
}
function webViewerFindFromUrlHash(e) {
PDFViewerApplication.findController.executeCommand('find', {
query: e.query,
phraseSearch: e.phraseSearch,
caseSensitive: false,
highlightAll: true,
findPrevious: false
});
}
function webViewerScaleChanging(e) {
var appConfig = PDFViewerApplication.appConfig;
appConfig.toolbar.zoomOut.disabled = (e.scale === MIN_SCALE);
appConfig.toolbar.zoomIn.disabled = (e.scale === MAX_SCALE);
// Update the 'scaleSelect' DOM element.
var predefinedValueFound = selectScaleOption(e.presetValue ||
'' + e.scale);
if (!predefinedValueFound) {
var customScaleOption = appConfig.toolbar.customScaleOption;
var customScale = Math.round(e.scale * 10000) / 100;
customScaleOption.textContent =
mozL10n.get('page_scale_percent', { scale: customScale }, '{{scale}}%');
customScaleOption.selected = true;
}
if (!PDFViewerApplication.initialized) {
return;
}
PDFViewerApplication.pdfViewer.update();
}
function webViewerPageChanging(e) {
var page = e.pageNumber;
if (e.previousPageNumber !== page) {
PDFViewerApplication.appConfig.toolbar.pageNumber.value = page;
if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
PDFViewerApplication.pdfThumbnailViewer.scrollThumbnailIntoView(page);
}
}
var numPages = PDFViewerApplication.pagesCount;
PDFViewerApplication.appConfig.toolbar.previous.disabled = (page <= 1);
PDFViewerApplication.appConfig.toolbar.next.disabled = (page >= numPages);
PDFViewerApplication.appConfig.toolbar.firstPage.disabled = (page <= 1);
PDFViewerApplication.appConfig.toolbar.lastPage.disabled = (page >= numPages);
// we need to update stats
if (pdfjsLib.PDFJS.pdfBug && Stats.enabled) {
var pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);
if (pageView.stats) {
Stats.add(page, pageView.stats);
}
}
}
var zoomDisabled = false, zoomDisabledTimeout;
function handleMouseWheel(evt) {
var MOUSE_WHEEL_DELTA_FACTOR = 40;
var ticks = (evt.type === 'DOMMouseScroll') ? -evt.detail :
evt.wheelDelta / MOUSE_WHEEL_DELTA_FACTOR;
var direction = (ticks < 0) ? 'zoomOut' : 'zoomIn';
var pdfViewer = PDFViewerApplication.pdfViewer;
if (pdfViewer.isInPresentationMode) {
evt.preventDefault();
PDFViewerApplication.scrollPresentationMode(ticks *
MOUSE_WHEEL_DELTA_FACTOR);
} else if (evt.ctrlKey || evt.metaKey) {
var support = PDFViewerApplication.supportedMouseWheelZoomModifierKeys;
if ((evt.ctrlKey && !support.ctrlKey) ||
(evt.metaKey && !support.metaKey)) {
return;
}
// Only zoom the pages, not the entire viewer.
evt.preventDefault();
// NOTE: this check must be placed *after* preventDefault.
if (zoomDisabled) {
return;
}
var previousScale = pdfViewer.currentScale;
PDFViewerApplication[direction](Math.abs(ticks));
var currentScale = pdfViewer.currentScale;
if (previousScale !== currentScale) {
// After scaling the page via zoomIn/zoomOut, the position of the upper-
// left corner is restored. When the mouse wheel is used, the position
// under the cursor should be restored instead.
var scaleCorrectionFactor = currentScale / previousScale - 1;
var rect = pdfViewer.container.getBoundingClientRect();
var dx = evt.clientX - rect.left;
var dy = evt.clientY - rect.top;
pdfViewer.container.scrollLeft += dx * scaleCorrectionFactor;
pdfViewer.container.scrollTop += dy * scaleCorrectionFactor;
}
} else {
zoomDisabled = true;
clearTimeout(zoomDisabledTimeout);
zoomDisabledTimeout = setTimeout(function () {
zoomDisabled = false;
}, 1000);
}
}
window.addEventListener('DOMMouseScroll', handleMouseWheel);
window.addEventListener('mousewheel', handleMouseWheel);
window.addEventListener('click', function click(evt) {
if (!PDFViewerApplication.secondaryToolbar.isOpen) {
return;
}
var appConfig = PDFViewerApplication.appConfig;
if (PDFViewerApplication.pdfViewer.containsElement(evt.target) ||
(appConfig.toolbar.container.contains(evt.target) &&
evt.target !== appConfig.secondaryToolbar.toggleButton)) {
PDFViewerApplication.secondaryToolbar.close();
}
}, true);
window.addEventListener('keydown', function keydown(evt) {
if (OverlayManager.active) {
return;
}
var handled = false;
var cmd = (evt.ctrlKey ? 1 : 0) |
(evt.altKey ? 2 : 0) |
(evt.shiftKey ? 4 : 0) |
(evt.metaKey ? 8 : 0);
var pdfViewer = PDFViewerApplication.pdfViewer;
var isViewerInPresentationMode = pdfViewer && pdfViewer.isInPresentationMode;
// First, handle the key bindings that are independent whether an input
// control is selected or not.
if (cmd === 1 || cmd === 8 || cmd === 5 || cmd === 12) {
// either CTRL or META key with optional SHIFT.
switch (evt.keyCode) {
case 70: // f
if (!PDFViewerApplication.supportsIntegratedFind) {
PDFViewerApplication.findBar.open();
handled = true;
}
break;
case 71: // g
if (!PDFViewerApplication.supportsIntegratedFind) {
var findState = PDFViewerApplication.findController.state;
if (findState) {
PDFViewerApplication.findController.executeCommand('findagain', {
query: findState.query,
phraseSearch: findState.phraseSearch,
caseSensitive: findState.caseSensitive,
highlightAll: findState.highlightAll,
findPrevious: cmd === 5 || cmd === 12
});
}
handled = true;
}
break;
case 61: // FF/Mac '='
case 107: // FF '+' and '='
case 187: // Chrome '+'
case 171: // FF with German keyboard
if (!isViewerInPresentationMode) {
PDFViewerApplication.zoomIn();
}
handled = true;
break;
case 173: // FF/Mac '-'
case 109: // FF '-'
case 189: // Chrome '-'
if (!isViewerInPresentationMode) {
PDFViewerApplication.zoomOut();
}
handled = true;
break;
case 48: // '0'
case 96: // '0' on Numpad of Swedish keyboard
if (!isViewerInPresentationMode) {
// keeping it unhandled (to restore page zoom to 100%)
setTimeout(function () {
// ... and resetting the scale after browser adjusts its scale
pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
});
handled = false;
}
break;
}
}
//#if !(FIREFOX || MOZCENTRAL)
// CTRL or META without shift
if (cmd === 1 || cmd === 8) {
switch (evt.keyCode) {
case 83: // s
PDFViewerApplication.download();
handled = true;
break;
}
}
//#endif
// CTRL+ALT or Option+Command
if (cmd === 3 || cmd === 10) {
switch (evt.keyCode) {
case 80: // p
PDFViewerApplication.requestPresentationMode();
handled = true;
break;
case 71: // g
// focuses input#pageNumber field
PDFViewerApplication.appConfig.toolbar.pageNumber.select();
handled = true;
break;
}
}
if (handled) {
evt.preventDefault();
return;
}
// Some shortcuts should not get handled if a control/input element
// is selected.
var curElement = document.activeElement || document.querySelector(':focus');
var curElementTagName = curElement && curElement.tagName.toUpperCase();
if (curElementTagName === 'INPUT' ||
curElementTagName === 'TEXTAREA' ||
curElementTagName === 'SELECT') {
// Make sure that the secondary toolbar is closed when Escape is pressed.
if (evt.keyCode !== 27) { // 'Esc'
return;
}
}
var ensureViewerFocused = false;
if (cmd === 0) { // no control key pressed at all.
switch (evt.keyCode) {
case 38: // up arrow
case 33: // pg up
case 8: // backspace
if (!isViewerInPresentationMode &&
pdfViewer.currentScaleValue !== 'page-fit') {
break;
}
/* in presentation mode */
/* falls through */
case 37: // left arrow
// horizontal scrolling using arrow keys
if (pdfViewer.isHorizontalScrollbarEnabled) {
break;
}
/* falls through */
case 75: // 'k'
case 80: // 'p'
PDFViewerApplication.page--;
handled = true;
break;
case 27: // esc key
if (PDFViewerApplication.secondaryToolbar.isOpen) {
PDFViewerApplication.secondaryToolbar.close();
handled = true;
}
if (!PDFViewerApplication.supportsIntegratedFind &&
PDFViewerApplication.findBar.opened) {
PDFViewerApplication.findBar.close();
handled = true;
}
break;
case 40: // down arrow
case 34: // pg down
case 32: // spacebar
if (!isViewerInPresentationMode &&
pdfViewer.currentScaleValue !== 'page-fit') {
break;
}
/* falls through */
case 39: // right arrow
// horizontal scrolling using arrow keys
if (pdfViewer.isHorizontalScrollbarEnabled) {
break;
}
/* falls through */
case 74: // 'j'
case 78: // 'n'
PDFViewerApplication.page++;
handled = true;
break;
case 36: // home
if (isViewerInPresentationMode || PDFViewerApplication.page > 1) {
PDFViewerApplication.page = 1;
handled = true;
ensureViewerFocused = true;
}
break;
case 35: // end
if (isViewerInPresentationMode || (PDFViewerApplication.pdfDocument &&
PDFViewerApplication.page < PDFViewerApplication.pagesCount)) {
PDFViewerApplication.page = PDFViewerApplication.pagesCount;
handled = true;
ensureViewerFocused = true;
}
break;
case 72: // 'h'
if (!isViewerInPresentationMode) {
PDFViewerApplication.handTool.toggle();
}
break;
case 82: // 'r'
PDFViewerApplication.rotatePages(90);
break;
}
}
if (cmd === 4) { // shift-key
switch (evt.keyCode) {
case 32: // spacebar
if (!isViewerInPresentationMode &&
pdfViewer.currentScaleValue !== 'page-fit') {
break;
}
PDFViewerApplication.page--;
handled = true;
break;
case 82: // 'r'
PDFViewerApplication.rotatePages(-90);
break;
}
}
if (!handled && !isViewerInPresentationMode) {
// 33=Page Up 34=Page Down 35=End 36=Home
// 37=Left 38=Up 39=Right 40=Down
// 32=Spacebar
if ((evt.keyCode >= 33 && evt.keyCode <= 40) ||
(evt.keyCode === 32 && curElementTagName !== 'BUTTON')) {
ensureViewerFocused = true;
}
}
if (cmd === 2) { // alt-key
switch (evt.keyCode) {
case 37: // left arrow
if (isViewerInPresentationMode) {
PDFViewerApplication.pdfHistory.back();
handled = true;
}
break;
case 39: // right arrow
if (isViewerInPresentationMode) {
PDFViewerApplication.pdfHistory.forward();
handled = true;
}
break;
}
}
if (ensureViewerFocused && !pdfViewer.containsElement(curElement)) {
// The page container is not focused, but a page navigation key has been
// pressed. Change the focus to the viewer container to make sure that
// navigation by keyboard works as expected.
pdfViewer.focus();
}
if (handled) {
evt.preventDefault();
}
});
window.addEventListener('beforeprint', function beforePrint(evt) {
PDFViewerApplication.eventBus.dispatch('beforeprint');
});
window.addEventListener('afterprint', function afterPrint(evt) {
PDFViewerApplication.eventBus.dispatch('afterprint');
});
(function animationStartedClosure() {
// The offsetParent is not set until the pdf.js iframe or object is visible.
// Waiting for first animation.
PDFViewerApplication.animationStartedPromise = new Promise(
function (resolve) {
window.requestAnimationFrame(resolve);
});
})();
exports.PDFViewerApplication = PDFViewerApplication;
exports.DefaultExernalServices = DefaultExernalServices;
}));