ngx-extended-pdf-viewer
Version:
Embedding PDF files in your Angular application. Highly configurable viewer including the toolbar, sidebar, and all the features you're used to.
1,339 lines (1,338 loc) • 301 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { Component, ViewEncapsulation, Input, Output, EventEmitter, ChangeDetectionStrategy, HostListener, NgZone, TemplateRef, Inject, PLATFORM_ID, ViewChild, } from '@angular/core';
import { defaultOptions } from './options/default-options';
import { ServiceWorkerOptions } from './options/service-worker-options';
import * as deburr from 'lodash.deburr'; // #177
// #177
import { VerbosityLevel } from './options/verbosity-level';
import { FindState } from './events/find-result';
import { isPlatformBrowser } from '@angular/common';
import { PdfDummyComponentsComponent } from './pdf-dummy-components/pdf-dummy-components.component';
import { ElementRef } from '@angular/core';
import { PdfSecondaryToolbarComponent } from './secondary-toolbar/pdf-secondary-toolbar/pdf-secondary-toolbar.component';
import { PDFNotificationService } from './pdf-notification-service';
import { PdfCursorTools } from './options/pdf-cursor-tools';
import { Location } from '@angular/common';
import { PinchOnMobileSupport } from './pinch-on-mobile-support';
if (typeof window !== 'undefined') {
((/** @type {?} */ (window))).deburr = deburr; // #177
}
/**
* @record
*/
function ElementAndPosition() { }
if (false) {
/** @type {?} */
ElementAndPosition.prototype.element;
/** @type {?} */
ElementAndPosition.prototype.x;
/** @type {?} */
ElementAndPosition.prototype.y;
}
export class NgxExtendedPdfViewerComponent {
/**
* @param {?} ngZone
* @param {?} platformId
* @param {?} notificationService
* @param {?} location
*/
constructor(ngZone, platformId, notificationService, location) {
this.ngZone = ngZone;
this.platformId = platformId;
this.notificationService = notificationService;
this.location = location;
this.customFindbarButtons = undefined;
this.srcChange = new EventEmitter();
this.contextMenuAllowed = true;
this.afterPrint = new EventEmitter();
this.beforePrint = new EventEmitter();
this.currentZoomFactor = new EventEmitter();
this.enablePrint = true;
/**
* Number of milliseconds to wait between initializing the PDF viewer and loading the PDF file.
* Most users can let this parameter safely at it's default value of zero.
* Set this to 1000 or higher if you run into timing problems (typically caused by loading the locale files
* after the PDF files, so they are not available when the PDF viewer is initialized).
*/
this.delayFirstView = 0;
/**
* How many log messages should be printed?
* Legal values: VerbosityLevel.INFOS (= 5), VerbosityLevel.WARNINGS (= 1), VerbosityLevel.ERRORS (= 0)
*/
this.logLevel = VerbosityLevel.WARNINGS;
this.enablePinchOnMobile = false;
this.primaryMenuVisible = true;
/**
* option to increase (or reduce) print resolution. Default is 150 (dpi). Sensible values
* are 300, 600, and 1200. Note the increase memory consumption, which may even result in a browser crash.
*/
this.printResolution = null;
this.rotationChange = new EventEmitter();
this.minHeight = undefined;
this._height = '100%';
/**
* If this flag is true, this components adds a link to the locale assets. The pdf viewer
* sees this link and uses it to load the locale files automatically.
* @param useBrowserLocale boolean
*/
this.useBrowserLocale = false;
this.backgroundColor = '#e8e8eb';
/**
* Allows the user to define the name of the file after clicking "download"
*/
this.filenameForDownload = 'document.pdf';
/**
* Allows the user to disable the keyboard bindings completely
*/
this.ignoreKeyboard = false;
/**
* Allows the user to disable a list of key bindings.
*/
this.ignoreKeys = [];
/**
* Allows the user to enable a list of key bindings explicitly. If this property is set, every other key binding is ignored.
*/
this.acceptKeys = [];
/**
* Allows the user to put the viewer's svg images into an arbitrary folder
*/
this.imageResourcesPath = './assets/images/';
/**
* Override the default locale. This must be the complete locale name, such as "es-ES". The string is allowed to be all lowercase.
*/
this.language = undefined;
/**
* By default, listening to the URL is deactivated because often the anchor tag is used for the Angular router
*/
this.listenToURL = false;
/**
* Navigate to a certain "named destination"
*/
this.nameddest = undefined;
/**
* allows you to pass a password to read password-protected files
*/
this.password = undefined;
this._showSidebarButton = true;
this.viewerPositionTop = '32px';
/**
* pdf.js can show signatures, but fails to verify them. So they are switched off by default.
* Set "[showUnverifiedSignatures]"="true" to display e-signatures nonetheless.
*/
this.showUnverifiedSignatures = false;
/**
* If [showSideBarButton]="true", do you want the sidebar to be shown by default ([showSidebarOnLoad])="true")
* or not? By default, this flag is undefined, telling the PDF viewer to use the last setting used with this particular
* document, or to hide the sidebar if the document is opened for the first time.
* @deprecated Use showSidebar instead; dreprecated since 1.8.0; to be removed with 2.0.0
*/
this.showSidebarOnLoad = undefined;
this.sidebarVisible = undefined;
this.sidebarVisibleChange = new EventEmitter();
this.showFindButton = undefined;
this.showPagingButtons = true;
this.showZoomButtons = true;
this.showPresentationModeButton = false;
this.showOpenFileButton = true;
this.showPrintButton = true;
this.showDownloadButton = true;
this.showBookmarkButton = true;
this.showSecondaryToolbarButton = true;
/**
* Set by the event (secondaryMenuIsEmpty)
*/
this.hideKebabMenuForSecondaryToolbar = false;
this.showRotateButton = true;
this.handTool = true;
this.handToolChange = new EventEmitter();
this.showHandToolButton = false;
this.showScrollingButton = true;
this.showSpreadButton = true;
this.showPropertiesButton = true;
this.showBorders = false;
this.spreadChange = new EventEmitter();
this.page = undefined;
this.pageChange = new EventEmitter();
this.pageLabel = undefined;
this.pageLabelChange = new EventEmitter();
this.pagesLoaded = new EventEmitter();
this.pageRendered = new EventEmitter();
this.pdfDownloaded = new EventEmitter();
this.pdfLoaded = new EventEmitter();
this.pdfLoadingFailed = new EventEmitter();
this.textLayer = undefined;
/**
* deprecated
*/
this.textlayerRendered = new EventEmitter();
this.textLayerRendered = new EventEmitter();
this.updateFindMatchesCount = new EventEmitter();
this.updateFindState = new EventEmitter();
/**
* Legal values: undefined, 'auto', 'page-actual', 'page_fit', 'page-width', or '50' (or any other percentage)
*/
this.zoom = undefined;
this.zoomChange = new EventEmitter();
/**
* This attributes allows you to increase the size of the UI elements so you can use them on small mobile devices.
* This attribute is a string with a percent character at the end (e.g. "150%").
*/
this._mobileFriendlyZoom = '100%';
this.mobileFriendlyZoomScale = 1;
this.toolbarPaddingTop = '0px';
this.toolbarWidth = '100%';
this.toolbarWidthInPixels = 100;
this.secondaryToolbarTop = undefined;
// dirty IE11 hack - temporary solution
this.findbarTop = undefined;
// dirty IE11 hack - temporary solution
this.findbarLeft = undefined;
this._top = undefined;
if (isPlatformBrowser(this.platformId)) {
if (!window['pdfjs-dist/build/pdf']) {
/** @type {?} */
const isIE = !!((/** @type {?} */ (window))).MSInputMethodContext && !!((/** @type {?} */ (document))).documentMode;
/** @type {?} */
const isEdge = /Edge\/\d./i.test(navigator.userAgent);
/** @type {?} */
const script = document.createElement('script');
script.src = this.location.normalize(isIE || isEdge ? 'assets/pdf-es5.js' : 'assets/pdf.js');
script.type = 'text/javascript';
script.async = true;
document.getElementsByTagName('head')[0].appendChild(script);
}
if (!((/** @type {?} */ (window))).webViewerLoad) {
this.loadViewer();
}
}
}
/**
* @param {?} url
* @return {?}
*/
set src(url) {
if (url instanceof Uint8Array) {
this._src = url.buffer;
}
else if (url instanceof Blob) {
this._src = URL.createObjectURL(url);
}
else if (typeof url === 'string') {
this._src = url;
if (url.length > 980) {
// minimal length of a base64 encoded PDF
if (url.length % 4 === 0) {
if (/^[a-zA-Z\d\/+]+={0,2}$/.test(url)) {
console.error('The URL looks like a base64 encoded string. If so, please use the attribute base64 instead of src');
}
}
}
}
else {
this._src = url;
}
}
/**
* @param {?} base64
* @return {?}
*/
set base64Src(base64) {
/** @type {?} */
const binary_string = window.atob(base64);
/** @type {?} */
const len = binary_string.length;
/** @type {?} */
const bytes = new Uint8Array(len);
for (let i = 0; i < len; i++) {
bytes[i] = binary_string.charCodeAt(i);
}
this.src = bytes.buffer;
}
/**
* @param {?} h
* @return {?}
*/
set height(h) {
this.minHeight = undefined;
if (h) {
this._height = h;
}
else {
this.height = '100%';
}
setTimeout((/**
* @return {?}
*/
() => {
this.checkHeight();
}));
}
/**
* @return {?}
*/
get height() {
return this._height;
}
/**
* @return {?}
*/
get showSidebarButton() {
return this._showSidebarButton;
}
/**
* @param {?} show
* @return {?}
*/
set showSidebarButton(show) {
this._showSidebarButton = show;
/** @type {?} */
const isIE = /msie\s|trident\//i.test(window.navigator.userAgent);
/** @type {?} */
let factor = 1;
if (isIE) {
factor = Number((this._mobileFriendlyZoom || '100').replace('%', '')) / 100;
}
if (this._showSidebarButton) {
this.findbarLeft = (68 * factor).toString() + 'px';
}
else {
this.findbarLeft = '0px';
}
}
/**
* @return {?}
*/
get mobileFriendlyZoom() {
return this._mobileFriendlyZoom;
}
/**
* This attributes allows you to increase the size of the UI elements so you can use them on small mobile devices.
* This attribute is a string with a percent character at the end (e.g. "150%").
* @param {?} zoom
* @return {?}
*/
set mobileFriendlyZoom(zoom) {
// tslint:disable-next-line:triple-equals - the type conversion is intended
if (zoom == 'true') {
zoom = '150%';
// tslint:disable-next-line:triple-equals - the type conversion is intended
}
else if (zoom == 'false' || zoom === undefined || zoom === null) {
zoom = '100%';
}
this._mobileFriendlyZoom = zoom;
/** @type {?} */
let factor = 1;
if (!String(zoom).includes('%')) {
zoom = 100 * Number(zoom) + '%';
}
factor = Number((zoom || '100').replace('%', '')) / 100;
this.mobileFriendlyZoomScale = factor;
this.toolbarWidth = (100 / factor).toString() + '%';
this.toolbarPaddingTop = (factor - 1) * 8 + 'px';
if (this.showSidebarButton) {
this.findbarLeft = (68 * factor).toString() + 'px';
}
else {
this.findbarLeft = '0px';
}
this.secondaryToolbarTop = (36 + 36 * (factor - 1)).toString() + 'px';
this.findbarTop = (36 + 116 * (factor - 1)).toString() + 'px';
}
/**
* Deprecated. Please use [mobileFriendlyZoom] instead.
* This attributes allows you to increase the size of the UI elements so you can use them on small mobile devices.
* This attribute is a string with a percent character at the end (e.g. "150%").
* @param {?} mobileFriendlyZoom
* @return {?}
*/
set mobileZoom(mobileFriendlyZoom) {
this.mobileFriendlyZoom = mobileFriendlyZoom;
}
/**
* @return {?}
*/
get sidebarPositionTop() {
if (this._top) {
return this._top;
}
if (this.mobileFriendlyZoom) {
if (this.mobileFriendlyZoom.endsWith('%')) {
/** @type {?} */
const zoom = Number(this.mobileFriendlyZoom.substring(0, this.mobileFriendlyZoom.length - 1));
return (2 + 0.29 * zoom).toString() + 'px';
}
if (this.mobileFriendlyZoom.endsWith('px')) {
return this.mobileFriendlyZoom;
}
return (16 + 0.16 * Number(this.mobileFriendlyZoom)).toString() + 'px';
}
return '32px';
}
/**
* @return {?}
*/
calcViewerPositionTop() {
if (this._top) {
this.viewerPositionTop = this._top;
return;
}
if (this.mobileFriendlyZoom) {
if (this.mobileFriendlyZoom.endsWith('%')) {
/** @type {?} */
const zoom = Number(this.mobileFriendlyZoom.substring(0, this.mobileFriendlyZoom.length - 1));
if (!this.isPrimaryMenuVisible()) {
this.viewerPositionTop = '0';
}
else {
this.viewerPositionTop = (1 + 0.32 * zoom).toString() + 'px';
}
return;
}
if (this.mobileFriendlyZoom.endsWith('px')) {
this.viewerPositionTop = this.mobileFriendlyZoom;
return;
}
}
if (this.isPrimaryMenuVisible()) {
this.viewerPositionTop = '32px';
}
else {
this.viewerPositionTop = '0';
}
}
/**
* @private
* @return {?}
*/
loadViewer() {
if (!window['pdfjs-dist/build/pdf']) {
setTimeout((/**
* @return {?}
*/
() => this.loadViewer()), 25);
}
else {
/** @type {?} */
const isIE = !!((/** @type {?} */ (window))).MSInputMethodContext && !!((/** @type {?} */ (document))).documentMode;
/** @type {?} */
const isEdge = /Edge\/\d./i.test(navigator.userAgent);
/** @type {?} */
const script2 = document.createElement('script');
script2.src = this.location.normalize(isIE || isEdge ? 'assets/viewer-es5.js' : 'assets/viewer.js');
script2.type = 'text/javascript';
script2.async = true;
document.getElementsByTagName('head')[0].appendChild(script2);
}
}
/**
* @param {?} value
* @return {?}
*/
emitZoomChange(value) {
this.zoomChange.emit(value);
}
/**
* @return {?}
*/
ngOnInit() {
this.onResize();
}
/**
* @return {?}
*/
ngAfterViewInit() {
if (((/** @type {?} */ (window))).webViewerLoad) {
this.doInitPDFViewer();
}
else {
setTimeout((/**
* @return {?}
*/
() => this.ngAfterViewInit()), 50);
}
}
/**
* @private
* @return {?}
*/
assignTabindexes() {
if (this.startTabindex) {
/** @type {?} */
const r = (/** @type {?} */ (this.root.nativeElement.cloneNode(true)));
r.classList.add('offscreen');
this.showElementsRecursively(r);
document.body.appendChild(r);
/** @type {?} */
const elements = this.collectElementPositions(r, this.root.nativeElement, []);
document.body.removeChild(r);
/** @type {?} */
const sorted = elements.sort((/**
* @param {?} a
* @param {?} b
* @return {?}
*/
(a, b) => {
if (a.y - b.y > 15) {
return 1;
}
if (b.y - a.y > 15) {
return -1;
}
return a.x - b.x;
}));
for (let i = 0; i < sorted.length; i++) {
sorted[i].element.tabIndex = this.startTabindex + i;
}
}
}
/**
* @private
* @param {?} root
* @return {?}
*/
showElementsRecursively(root) {
root.classList.remove('hidden');
root.classList.remove('invisible');
root.classList.remove('hiddenXXLView');
root.classList.remove('hiddenXLView');
root.classList.remove('hiddenLargeView');
root.classList.remove('hiddenMediumView');
root.classList.remove('hiddenSmallView');
root.classList.remove('hiddenTinyView');
root.classList.remove('visibleXXLView');
root.classList.remove('visibleXLView');
root.classList.remove('visibleLargeView');
root.classList.remove('visibleMediumView');
root.classList.remove('visibleSmallView');
root.classList.remove('visibleTinyView');
if (root instanceof HTMLButtonElement || root instanceof HTMLAnchorElement || root instanceof HTMLInputElement || root instanceof HTMLSelectElement) {
return;
}
else if (root.childElementCount > 0) {
for (let i = 0; i < root.childElementCount; i++) {
/** @type {?} */
const c = root.children.item(i);
if (c) {
this.showElementsRecursively(c);
}
}
}
}
/**
* @private
* @param {?} copy
* @param {?} original
* @param {?} elements
* @return {?}
*/
collectElementPositions(copy, original, elements) {
if (copy instanceof HTMLButtonElement || copy instanceof HTMLAnchorElement || copy instanceof HTMLInputElement || copy instanceof HTMLSelectElement) {
/** @type {?} */
const rect = copy.getBoundingClientRect();
/** @type {?} */
const elementAndPos = (/** @type {?} */ ({
element: original,
x: Math.round(rect.left),
y: Math.round(rect.top),
}));
elements.push(elementAndPos);
}
else if (copy.childElementCount > 0) {
for (let i = 0; i < copy.childElementCount; i++) {
/** @type {?} */
const c = copy.children.item(i);
/** @type {?} */
const o = original.children.item(i);
if (c && o) {
elements = this.collectElementPositions(c, o, elements);
}
}
}
return elements;
}
/**
* @private
* @return {?}
*/
doInitPDFViewer() {
/** @type {?} */
const langLinks = document.querySelectorAll('link[type="application/l10n"]');
/** @type {?} */
const langCount = langLinks.length;
if (langCount === 0) {
/** @type {?} */
const dict = document.querySelector('script[type="application/l10n"]');
if (!dict) {
if (!this.useBrowserLocale) {
console.error(
// tslint:disable-next-line:quotemark
"If you set the attribute 'useBrowserLocale' to false, you must provide the translations yourself in a script or link tag.");
console.error('The easiest way to do this is to add them to the index.html.');
}
}
else if (this.useBrowserLocale) {
console.error(
// tslint:disable-next-line:quotemark
"Please set the attribute 'useBrowserLocale' to false if you provide the translations yourself in a script or link tag.");
}
}
else if (this.useBrowserLocale) {
/** @type {?} */
const o = langLinks[0].attributes['origin'];
if (o && o.value !== 'ngx-extended-pdf-viewer') {
console.error(
// tslint:disable-next-line:quotemark
"Please set the attribute 'useBrowserLocale' to false if you provide the translations yourself in a script or link tag.");
}
}
/** @type {?} */
const callback = (/**
* @param {?} e
* @return {?}
*/
(e) => {
document.removeEventListener('localized', callback);
this.initTimeout = setTimeout((/**
* @return {?}
*/
() => {
this.afterLibraryInit();
this.openPDF();
this.assignTabindexes();
}), this.delayFirstView);
});
window.addEventListener('afterprint', (/**
* @param {?} event
* @return {?}
*/
(event) => {
this.afterPrint.emit();
}));
window.addEventListener('beforeprint', (/**
* @param {?} event
* @return {?}
*/
(event) => {
this.beforePrint.emit();
}));
document.addEventListener('localized', callback);
if (NgxExtendedPdfViewerComponent.ngxExtendedPdfViewerInitialized) {
// tslint:disable-next-line:quotemark
console.error("You're trying to open two instances of the PDF viewer. Most likely, this will result in errors.");
}
/** @type {?} */
const onLoaded = (/**
* @return {?}
*/
() => {
this.overrideDefaultSettings();
document.removeEventListener('webviewerloaded', onLoaded);
debugger;
if (this.enablePinchOnMobile) {
this.pinchOnMobileSupport = new PinchOnMobileSupport(this.ngZone);
}
});
document.addEventListener('webviewerloaded', onLoaded);
this.activateTextlayerIfNecessary(null);
setTimeout((/**
* @return {?}
*/
() => {
// This initializes the webviewer, the file may be passed in to it to initialize the viewer with a pdf directly
this.primaryMenuVisible = true;
/** @type {?} */
const showSecondaryMenu = this.hideKebabMenuForSecondaryToolbar && this.showSecondaryToolbarButton;
if (showSecondaryMenu) {
if (!this.isPrimaryMenuVisible()) {
this.primaryMenuVisible = false;
}
}
this.calcViewerPositionTop();
this.dummyComponents.addMissingStandardWidgets();
((/** @type {?} */ (window))).webViewerLoad();
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
PDFViewerApplication.appConfig.defaultUrl = ''; // IE bugfix
PDFViewerApplication.appConfig.filenameForDownload = this.filenameForDownload;
/** @type {?} */
const PDFViewerApplicationOptions = ((/** @type {?} */ (window))).PDFViewerApplicationOptions;
PDFViewerApplicationOptions.set('locale', this.language);
PDFViewerApplicationOptions.set('imageResourcesPath', this.imageResourcesPath);
PDFViewerApplication.isViewerEmbedded = true;
if (PDFViewerApplication.printKeyDownListener) {
window.addEventListener('keydown', PDFViewerApplication.printKeyDownListener, true);
}
/** @type {?} */
const pc = document.getElementById('printContainer');
if (pc) {
document.getElementsByTagName('body')[0].appendChild(pc);
}
}), 0);
}
/**
* Notifies every widget that implements onLibraryInit() that the PDF viewer objects are available
* @private
* @return {?}
*/
afterLibraryInit() {
this.notificationService.onPDFJSInit.next();
}
/**
* @return {?}
*/
checkHeight() {
/** @type {?} */
const container = document.getElementsByClassName('zoom')[0];
if (container.clientHeight === 0 && this._height.includes('%')) {
/** @type {?} */
const available = window.innerHeight;
/** @type {?} */
const rect = container.getBoundingClientRect();
/** @type {?} */
const top = rect.top;
/** @type {?} */
let mh = available - top;
/** @type {?} */
const factor = Number(this._height.replace('%', ''));
mh = (mh * factor) / 100;
if (mh > 100) {
this.minHeight = mh + 'px';
}
else {
this.minHeight = '100px';
}
}
}
/**
* @param {?} newSpread
* @return {?}
*/
onSpreadChange(newSpread) {
this.spreadChange.emit(newSpread);
}
/**
* @private
* @param {?} options
* @return {?}
*/
activateTextlayerIfNecessary(options) {
if (this.textLayer === undefined) {
if (!this.handTool) {
if (options) {
options.set('textLayerMode', 1);
}
this.textLayer = true;
if (this.showFindButton === undefined) {
this.showFindButton = true;
setTimeout((/**
* @return {?}
*/
() => {
// todo remove this hack:
/** @type {?} */
const viewFind = (/** @type {?} */ (document.getElementById('viewFind')));
if (viewFind) {
viewFind.classList.remove('invisible');
}
/** @type {?} */
const findbar = (/** @type {?} */ (document.getElementById('findbar')));
if (findbar) {
findbar.classList.remove('invisible');
}
}));
}
}
else {
if (options) {
options.set('textLayerMode', this.showHandToolButton ? 1 : 0);
}
if (!this.showHandToolButton) {
if (this.showFindButton || this.showFindButton === undefined) {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.showFindButton = false;
}));
if (this.logLevel >= VerbosityLevel.WARNINGS) {
console.warn(
// tslint:disable-next-line:max-line-length
'Hiding the "find" button because the text layer of the PDF file is not rendered. Use [textLayer]="true" to enable the find button.');
}
}
if (this.showHandToolButton) {
if (this.logLevel >= VerbosityLevel.WARNINGS) {
console.warn(
// tslint:disable-next-line:max-line-length
'Hiding the "hand tool / selection mode" menu because the text layer of the PDF file is not rendered. Use [textLayer]="true" to enable the the menu items.');
this.showHandToolButton = false;
}
}
}
}
}
else {
if (this.textLayer) {
if (options) {
options.set('textLayerMode', 1);
}
this.textLayer = true;
if (this.showFindButton === undefined) {
this.showFindButton = true;
setTimeout((/**
* @return {?}
*/
() => {
// todo remove this hack:
/** @type {?} */
const viewFind = (/** @type {?} */ (document.getElementById('viewFind')));
if (viewFind) {
viewFind.classList.remove('invisible');
}
/** @type {?} */
const findbar = (/** @type {?} */ (document.getElementById('findbar')));
if (findbar) {
findbar.classList.remove('invisible');
}
}));
}
}
else {
if (options) {
options.set('textLayerMode', 0);
}
this.textLayer = false;
if (this.showFindButton) {
if (this.logLevel >= VerbosityLevel.WARNINGS) {
// tslint:disable-next-line:max-line-length
console.warn('Hiding the "find" button because the text layer of the PDF file is not rendered. Use [textLayer]="true" to enable the find button.');
this.ngZone.run((/**
* @return {?}
*/
() => {
this.showFindButton = false;
}));
}
}
if (this.showHandToolButton) {
if (this.logLevel >= VerbosityLevel.WARNINGS) {
console.warn(
// tslint:disable-next-line:max-line-length
'Hiding the "hand tool / selection mode" menu because the text layer of the PDF file is not rendered. Use [textLayer]="true" to enable the the menu items.');
this.showHandToolButton = false;
}
}
}
}
}
/**
* @private
* @return {?}
*/
overrideDefaultSettings() {
/** @type {?} */
const options = (/** @type {?} */ (((/** @type {?} */ (window))).PDFViewerApplicationOptions));
// tslint:disable-next-line:forin
for (const key in defaultOptions) {
options.set(key, defaultOptions[key]);
}
options.set('disablePreferences', true);
this.setZoom();
options.set('ignoreKeyboard', this.ignoreKeyboard);
options.set('ignoreKeys', this.ignoreKeys);
options.set('acceptKeys', this.acceptKeys);
this.activateTextlayerIfNecessary(options);
/** @type {?} */
let sidebarVisible = this.sidebarVisible;
if (sidebarVisible === undefined) {
sidebarVisible = this.showSidebarOnLoad;
}
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
if (sidebarVisible !== undefined) {
PDFViewerApplication.sidebarViewOnLoad = sidebarVisible ? 1 : 0;
if (PDFViewerApplication.appConfig) {
PDFViewerApplication.appConfig.sidebarViewOnLoad = sidebarVisible ? 1 : 0;
}
options.set('sidebarViewOnLoad', this.sidebarVisible ? 1 : 0);
}
if (this.spread === 'even') {
options.set('spreadModeOnLoad', 2);
if (PDFViewerApplication.pdfViewer) {
PDFViewerApplication.pdfViewer.spreadMode = 2;
}
this.onSpreadChange('even');
}
else if (this.spread === 'odd') {
options.set('spreadModeOnLoad', 1);
if (PDFViewerApplication.pdfViewer) {
PDFViewerApplication.pdfViewer.spreadMode = 1;
}
this.onSpreadChange('odd');
}
else {
options.set('spreadModeOnLoad', 0);
if (PDFViewerApplication.pdfViewer) {
PDFViewerApplication.pdfViewer.spreadMode = 0;
}
this.onSpreadChange('off');
}
if (this.printResolution) {
options.set('printResolution', this.printResolution);
}
if (this.showBorders) {
options.set('showBorders', this.showBorders);
}
}
/**
* @private
* @return {?}
*/
openPDF() {
ServiceWorkerOptions.showUnverifiedSignatures = this.showUnverifiedSignatures;
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
PDFViewerApplication.enablePrint = this.enablePrint;
NgxExtendedPdfViewerComponent.ngxExtendedPdfViewerInitialized = true;
this.onResize();
if (!this.listenToURL) {
PDFViewerApplication.pdfLinkService.setHash = (/**
* @return {?}
*/
function () { });
}
this.initTimeout = null;
this.selectCursorTool();
PDFViewerApplication.eventBus.on('textlayerrendered', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.textlayerRendered.emit(x); // deprecated - kept to avoid a breaking change
this.textLayerRendered.emit(x);
}));
PDFViewerApplication.eventBus.on('pagesloaded', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.pagesLoaded.emit(x);
if (this.rotation) {
/** @type {?} */
const r = Number(this.rotation);
if (r === 0 || r === 90 || r === 180 || r === 270) {
PDFViewerApplication.pdfViewer.pagesRotation = r;
}
}
else {
PDFViewerApplication.pdfViewer.pagesRotation = 0;
}
setTimeout((/**
* @return {?}
*/
() => {
if (this.nameddest) {
PDFViewerApplication.pdfLinkService.navigateTo(this.nameddest);
}
else if (this.page) {
PDFViewerApplication.page = Number(this.page);
}
else if (this.pageLabel) {
PDFViewerApplication.pdfViewer.currentPageLabel = this.pageLabel;
}
}));
this.setZoom();
}));
PDFViewerApplication.eventBus.on('pagerendered', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.pageRendered.emit(x);
}));
}));
PDFViewerApplication.eventBus.on('download', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.pdfDownloaded.emit(x);
}));
}));
PDFViewerApplication.eventBus.on('scalechanging', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
setTimeout((/**
* @return {?}
*/
() => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.currentZoomFactor.emit(x.scale);
if (this.zoom !== 'auto' && this.zoom !== 'page-fit' && this.zoom !== 'page-actual' && this.zoom !== 'page-width') {
this.emitZoomChange(x.scale * 100);
}
}));
}));
}));
}));
PDFViewerApplication.eventBus.on('rotationchanging', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.rotationChange.emit(x.pagesRotation);
}));
}));
PDFViewerApplication.eventBus.on('fileinputchange', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
/** @type {?} */
const path = x.fileInput.value.replace('C:\\fakepath\\', '');
this.srcChange.emit(path);
}));
}));
PDFViewerApplication.eventBus.on('cursortoolchanged', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.handToolChange.emit(x.tool === PdfCursorTools.HAND);
}));
}));
PDFViewerApplication.eventBus.on('sidebarviewchanged', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
this.sidebarVisibleChange.emit(x.view === 1);
}));
}));
PDFViewerApplication.eventBus.on('updatefindcontrolstate', (/**
* @param {?} x
* @return {?}
*/
(x) => {
if (this.updateFindMatchesCount) {
if (x.state === FindState.NOT_FOUND) {
this.updateFindMatchesCount.emit({ current: 0, total: 0 });
}
else if (x.matchesCount.total) {
this.updateFindMatchesCount.emit(x.matchesCount);
}
}
if (this.updateFindState) {
this.updateFindState.emit(x.state);
}
}));
PDFViewerApplication.eventBus.on('updatefindmatchescount', (/**
* @param {?} x
* @return {?}
*/
(x) => {
if (this.updateFindMatchesCount) {
if (x.matchesCount.total) {
this.updateFindMatchesCount.emit(x.matchesCount);
}
}
}));
PDFViewerApplication.eventBus.on('pagechanging', (/**
* @param {?} x
* @return {?}
*/
(x) => {
this.ngZone.run((/**
* @return {?}
*/
() => {
/** @type {?} */
const currentPage = PDFViewerApplication.pdfViewer.currentPageNumber;
/** @type {?} */
const currentPageLabel = PDFViewerApplication.pdfViewer.currentPageLabel;
this.pageChange.emit(currentPage);
this.pageLabelChange.emit(currentPageLabel);
}));
}));
this.checkHeight();
// open a file in the viewer
if (!!this._src) {
/** @type {?} */
const options = {
password: this.password,
verbosity: this.logLevel,
};
PDFViewerApplication.onError = (/**
* @param {?} error
* @return {?}
*/
(error) => this.pdfLoadingFailed.emit(error));
PDFViewerApplication.open(this._src, options).then((/**
* @return {?}
*/
() => this.pdfLoaded.emit({ pagesCount: PDFViewerApplication.pagesCount })));
}
setTimeout((/**
* @return {?}
*/
() => {
if (this.page) {
PDFViewerApplication.page = Number(this.page);
}
}), 100);
}
/**
* @private
* @return {?}
*/
selectCursorTool() {
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
PDFViewerApplication.eventBus.dispatch('switchcursortool', { tool: this.handTool ? 1 : 0 });
}
/**
* @return {?}
*/
ngOnDestroy() {
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
NgxExtendedPdfViewerComponent.ngxExtendedPdfViewerInitialized = false;
if (this.initTimeout) {
clearTimeout(this.initTimeout);
this.initTimeout = undefined;
}
if (PDFViewerApplication) {
if (this.pinchOnMobileSupport) {
this.pinchOnMobileSupport.destroyPinchZoom();
this.pinchOnMobileSupport = undefined;
}
PDFViewerApplication.cleanup();
PDFViewerApplication.close();
if (PDFViewerApplication.printKeyDownListener) {
removeEventListener('keydown', PDFViewerApplication.printKeyDownListener, true);
}
if (PDFViewerApplication._boundEvents) {
PDFViewerApplication.unbindWindowEvents();
}
/** @type {?} */
const bus = PDFViewerApplication.eventBus;
if (bus) {
PDFViewerApplication.unbindEvents();
for (const key in bus._listeners) {
if (bus._listeners[key]) {
/** @type {?} */
const list = bus._listeners[key];
// not sure if the for loop is necessary - but
// it might improve garbage collection if the "listeners"
// array is stored somewhere else
for (let i = 0; i < list.length; i++) {
list[i] = undefined;
}
bus._listeners[key] = undefined;
}
}
}
((/** @type {?} */ (PDFViewerApplication.eventBus))) = null;
}
/** @type {?} */
const body = document.getElementsByTagName('body');
if (body[0]) {
/** @type {?} */
const topLevelElements = body[0].children;
for (let i = topLevelElements.length - 1; i >= 0; i--) {
/** @type {?} */
const e = topLevelElements.item(i);
if (e && e.id === 'printContainer') {
body[0].removeChild(e);
}
else if (e && e.id === 'fileInput') {
body[0].removeChild(e);
}
}
}
}
/**
* @private
* @return {?}
*/
isPrimaryMenuVisible() {
/** @type {?} */
const visible = this.showBookmarkButton ||
this.showDownloadButton ||
this.showFindButton ||
this.showOpenFileButton ||
this.showPagingButtons ||
this.showPresentationModeButton ||
this.showPrintButton ||
this.showPropertiesButton ||
this.showSidebarButton ||
this.showZoomButtons;
if (visible) {
return true;
}
return false;
}
/**
* @param {?} changes
* @return {?}
*/
ngOnChanges(changes) {
/** @type {?} */
const PDFViewerApplication = ((/** @type {?} */ (window))).PDFViewerApplication;
/** @type {?} */
const PDFViewerApplicationOptions = ((/** @type {?} */ (window))).PDFViewerApplicationOptions;
if (NgxExtendedPdfViewerComponent.ngxExtendedPdfViewerInitialized) {
if ('src' in changes || 'base64Src' in changes) {
if (!!this._src) {
this.overrideDefaultSettings();
PDFViewerApplication.open(this._src).then((/**
* @return {?}
*/
() => this.pdfLoaded.emit({ pagesCount: PDFViewerApplication.pagesCount })), (/**
* @param {?} error
* @return {?}
*/
(error) => this.pdfLoadingFailed.emit(error)));
}
}
if ('zoom' in changes) {
this.setZoom();
}
if ('handTool' in changes) {
this.selectCursorTool();
}
if ('page' in changes) {
if (this.page) {
PDFViewerApplication.page = this.page;
}
}
if ('pageLabel' in changes) {
if (this.pageLabel) {
PDFViewerApplication.pdfViewer.currentPageLabel = this.pageLabel;
}
}
if ('rotation' in changes) {
if (this.rotation) {
/** @type {?} */
const r = Number(this.rotation);
if (r === 0 || r === 90 || r === 180 || r === 270) {
PDFViewerApplication.pdfViewer.pagesRotation = r;
}
}
else {
PDFViewerApplication.pdfViewer.pagesRotation = 0;
}
}
if ('sidebarVisible' in changes) {
if (this.sidebarVisible) {
PDFViewerApplication.pdfSidebar.open();
}
else {
PDFViewerApplication.pdfSidebar.close();
}
}
if ('filenameForDownload' in changes) {
PDFViewerApplication.appConfig.filenameForDownload = this.filenameForDownload;
}
if ('nameddest' in changes) {
if (this.nameddest) {
PDFViewerApplication.pdfLinkService.navigateTo(this.nameddest);
}
}
if ('spread' in changes) {
if (this.spread === 'even') {
PDFViewerApplication.spreadModeOnLoad = 2;
PDFViewerApplication.pdfViewer.spreadMode = 2;
this.onSpreadChange('even');
}
else if (this.spread === 'odd') {
PDFViewerApplication.spreadModeOnLoad = 1;
PDFViewerApplication.pdfViewer.spreadMode = 1;
this.onSpreadChange('odd');
}
else {
PDFViewerApplication.spreadModeOnLoad = 0;
PDFViewerApplication.pdfViewer.spreadMode = 0;
this.onSpreadChange('off');
}
}
if ('enablePinchOnMobile' in changes) {
if (!changes['enablePinchOnMobile'].isFirstChange) {
if (changes['enablePinchOnMobile'].currentValue !== changes['enablePinchOnMobile'].previousValue) {
if (this.enablePinchOnMobile) {
this.pinchOnMobileSupport = new PinchOnMobileSupport(this.ngZone);
}
else {
if (this.pinchOnMobileSupport) {
this.pinchOnMobileSupport.destroyPinchZoom();
this.pinchOnMobileSupport = undefined;
}
}
}
}
}
this.primaryMenuVisible = true;
if (!this.showSecondaryToolbarButton || !this.hideKebabMenuForSecondaryToolbar) {
if (!this.isPrimaryMenuVisible()) {
this.primaryMenuVisible = false;
}
}
this.calcViewerPositionTop();
}
this.onResize();
if ('printResolution' in changes) {
/** @type {?} */
const options = PDFViewerApplicationOptions;
if (options) {
options.set('printResolution', this.printResolution);
}
}
if ('ignoreKeyboard' in changes) {
/** @type {?} */
const options = PDFViewerApplicationOptions;
if (options) {
this.overrideDefaultSettings();
}
}
if ('ignoreKeys' in changes) {
/** @type {?} */
const options = PDFViewerApplicationOptions;
if (options) {
this.overrideDefaultSettings();