Convert the sidebar to ES6 syntax
This commit is contained in:
Tim van der Meij
parent
0e8f020e2e
commit
26ad82f5c2
@ -16,9 +16,9 @@
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import { mozL10n } from './ui_utils';
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import { RenderingStates } from './pdf_rendering_queue';
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var UI_NOTIFICATION_CLASS = 'pdfSidebarNotification';
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const UI_NOTIFICATION_CLASS = 'pdfSidebarNotification';
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var SidebarView = {
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const SidebarView = {
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NONE: 0,
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THUMBS: 1,
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OUTLINE: 2,
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@ -53,15 +53,11 @@ var SidebarView = {
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* for documents containing outline/attachments. The default value is `false`.
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*/
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/**
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* @class
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*/
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var PDFSidebar = (function PDFSidebarClosure() {
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class PDFSidebar {
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/**
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* @constructs PDFSidebar
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* @param {PDFSidebarOptions} options
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*/
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function PDFSidebar(options) {
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constructor(options) {
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this.isOpen = false;
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this.active = SidebarView.THUMBS;
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this.isInitialViewSet = false;
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@ -94,356 +90,350 @@ var PDFSidebar = (function PDFSidebarClosure() {
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this._addEventListeners();
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}
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PDFSidebar.prototype = {
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reset: function PDFSidebar_reset() {
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this.isInitialViewSet = false;
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reset() {
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this.isInitialViewSet = false;
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this._hideUINotification(null);
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this.switchView(SidebarView.THUMBS);
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this._hideUINotification(null);
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this.switchView(SidebarView.THUMBS);
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this.outlineButton.disabled = false;
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this.attachmentsButton.disabled = false;
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},
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this.outlineButton.disabled = false;
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this.attachmentsButton.disabled = false;
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}
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/**
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* @returns {number} One of the values in {SidebarView}.
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*/
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get visibleView() {
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return (this.isOpen ? this.active : SidebarView.NONE);
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},
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/**
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* @returns {number} One of the values in {SidebarView}.
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*/
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get visibleView() {
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return (this.isOpen ? this.active : SidebarView.NONE);
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}
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get isThumbnailViewVisible() {
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return (this.isOpen && this.active === SidebarView.THUMBS);
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},
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get isThumbnailViewVisible() {
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return (this.isOpen && this.active === SidebarView.THUMBS);
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}
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get isOutlineViewVisible() {
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return (this.isOpen && this.active === SidebarView.OUTLINE);
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},
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get isOutlineViewVisible() {
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return (this.isOpen && this.active === SidebarView.OUTLINE);
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}
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get isAttachmentsViewVisible() {
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return (this.isOpen && this.active === SidebarView.ATTACHMENTS);
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},
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get isAttachmentsViewVisible() {
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return (this.isOpen && this.active === SidebarView.ATTACHMENTS);
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}
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/**
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* @param {number} view - The sidebar view that should become visible,
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* must be one of the values in {SidebarView}.
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*/
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setInitialView: function PDFSidebar_setInitialView(view) {
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if (this.isInitialViewSet) {
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/**
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* @param {number} view - The sidebar view that should become visible,
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* must be one of the values in {SidebarView}.
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*/
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setInitialView(view) {
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if (this.isInitialViewSet) {
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return;
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}
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this.isInitialViewSet = true;
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if (this.isOpen && view === SidebarView.NONE) {
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this._dispatchEvent();
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// If the user has already manually opened the sidebar,
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// immediately closing it would be bad UX.
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return;
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}
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var isViewPreserved = (view === this.visibleView);
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this.switchView(view, /* forceOpen */ true);
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if (isViewPreserved) {
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// Prevent dispatching two back-to-back `sidebarviewchanged` events,
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// since `this.switchView` dispatched the event if the view changed.
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this._dispatchEvent();
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}
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}
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/**
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* @param {number} view - The sidebar view that should be switched to,
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* must be one of the values in {SidebarView}.
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* @param {boolean} forceOpen - (optional) Ensure that the sidebar is open.
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* The default value is `false`.
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*/
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switchView(view, forceOpen = false) {
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if (view === SidebarView.NONE) {
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this.close();
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return;
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}
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var isViewChanged = (view !== this.active);
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var shouldForceRendering = false;
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switch (view) {
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case SidebarView.THUMBS:
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this.thumbnailButton.classList.add('toggled');
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this.outlineButton.classList.remove('toggled');
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this.attachmentsButton.classList.remove('toggled');
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this.thumbnailView.classList.remove('hidden');
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this.outlineView.classList.add('hidden');
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this.attachmentsView.classList.add('hidden');
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if (this.isOpen && isViewChanged) {
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this._updateThumbnailViewer();
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shouldForceRendering = true;
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}
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break;
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case SidebarView.OUTLINE:
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if (this.outlineButton.disabled) {
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return;
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}
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this.thumbnailButton.classList.remove('toggled');
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this.outlineButton.classList.add('toggled');
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this.attachmentsButton.classList.remove('toggled');
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this.thumbnailView.classList.add('hidden');
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this.outlineView.classList.remove('hidden');
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this.attachmentsView.classList.add('hidden');
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break;
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case SidebarView.ATTACHMENTS:
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if (this.attachmentsButton.disabled) {
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return;
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}
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this.thumbnailButton.classList.remove('toggled');
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this.outlineButton.classList.remove('toggled');
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this.attachmentsButton.classList.add('toggled');
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this.thumbnailView.classList.add('hidden');
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this.outlineView.classList.add('hidden');
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this.attachmentsView.classList.remove('hidden');
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break;
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default:
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console.error('PDFSidebar_switchView: "' + view +
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'" is an unsupported value.');
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return;
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}
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this.isInitialViewSet = true;
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}
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// Update the active view *after* it has been validated above,
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// in order to prevent setting it to an invalid state.
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this.active = view | 0;
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if (this.isOpen && view === SidebarView.NONE) {
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this._dispatchEvent();
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// If the user has already manually opened the sidebar,
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// immediately closing it would be bad UX.
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return;
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}
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var isViewPreserved = (view === this.visibleView);
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this.switchView(view, /* forceOpen */ true);
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if (forceOpen && !this.isOpen) {
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this.open();
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return; // NOTE: Opening will trigger rendering, and dispatch the event.
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}
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if (shouldForceRendering) {
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this._forceRendering();
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}
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if (isViewChanged) {
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this._dispatchEvent();
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}
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this._hideUINotification(this.active);
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}
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if (isViewPreserved) {
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// Prevent dispatching two back-to-back `sidebarviewchanged` events,
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// since `this.switchView` dispatched the event if the view changed.
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this._dispatchEvent();
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}
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},
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open() {
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if (this.isOpen) {
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return;
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}
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this.isOpen = true;
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this.toggleButton.classList.add('toggled');
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/**
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* @param {number} view - The sidebar view that should be switched to,
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* must be one of the values in {SidebarView}.
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* @param {boolean} forceOpen - (optional) Ensure that the sidebar is open.
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* The default value is false.
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*/
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switchView: function PDFSidebar_switchView(view, forceOpen) {
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if (view === SidebarView.NONE) {
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this.close();
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return;
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}
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var isViewChanged = (view !== this.active);
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var shouldForceRendering = false;
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this.outerContainer.classList.add('sidebarMoving');
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this.outerContainer.classList.add('sidebarOpen');
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if (this.active === SidebarView.THUMBS) {
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this._updateThumbnailViewer();
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}
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this._forceRendering();
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this._dispatchEvent();
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this._hideUINotification(this.active);
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}
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close() {
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if (!this.isOpen) {
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return;
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}
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this.isOpen = false;
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this.toggleButton.classList.remove('toggled');
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this.outerContainer.classList.add('sidebarMoving');
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this.outerContainer.classList.remove('sidebarOpen');
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this._forceRendering();
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this._dispatchEvent();
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}
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toggle() {
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if (this.isOpen) {
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this.close();
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} else {
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this.open();
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}
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}
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/**
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* @private
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*/
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_dispatchEvent() {
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this.eventBus.dispatch('sidebarviewchanged', {
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source: this,
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view: this.visibleView,
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});
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}
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/**
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* @private
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*/
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_forceRendering() {
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if (this.onToggled) {
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this.onToggled();
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} else { // Fallback
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this.pdfViewer.forceRendering();
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this.pdfThumbnailViewer.forceRendering();
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}
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}
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/**
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* @private
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*/
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_updateThumbnailViewer() {
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var pdfViewer = this.pdfViewer;
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var thumbnailViewer = this.pdfThumbnailViewer;
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// Use the rendered pages to set the corresponding thumbnail images.
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var pagesCount = pdfViewer.pagesCount;
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for (var pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
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var pageView = pdfViewer.getPageView(pageIndex);
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if (pageView && pageView.renderingState === RenderingStates.FINISHED) {
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var thumbnailView = thumbnailViewer.getThumbnail(pageIndex);
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thumbnailView.setImage(pageView);
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}
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}
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thumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber);
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}
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/**
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* @private
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*/
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_showUINotification(view) {
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if (this.disableNotification) {
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return;
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}
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this.toggleButton.title = mozL10n.get('toggle_sidebar_notification.title',
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null, 'Toggle Sidebar (document contains outline/attachments)');
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if (!this.isOpen) {
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// Only show the notification on the `toggleButton` if the sidebar is
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// currently closed, to avoid unnecessarily bothering the user.
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this.toggleButton.classList.add(UI_NOTIFICATION_CLASS);
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} else if (view === this.active) {
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// If the sidebar is currently open *and* the `view` is visible, do not
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// bother the user with a notification on the corresponding button.
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return;
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}
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switch (view) {
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case SidebarView.OUTLINE:
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this.outlineButton.classList.add(UI_NOTIFICATION_CLASS);
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break;
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case SidebarView.ATTACHMENTS:
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this.attachmentsButton.classList.add(UI_NOTIFICATION_CLASS);
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break;
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}
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}
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/**
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* @private
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*/
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_hideUINotification(view) {
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if (this.disableNotification) {
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return;
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}
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var removeNotification = (view) => {
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switch (view) {
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case SidebarView.THUMBS:
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this.thumbnailButton.classList.add('toggled');
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this.outlineButton.classList.remove('toggled');
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this.attachmentsButton.classList.remove('toggled');
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this.thumbnailView.classList.remove('hidden');
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this.outlineView.classList.add('hidden');
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this.attachmentsView.classList.add('hidden');
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if (this.isOpen && isViewChanged) {
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this._updateThumbnailViewer();
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shouldForceRendering = true;
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}
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break;
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case SidebarView.OUTLINE:
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if (this.outlineButton.disabled) {
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return;
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}
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this.thumbnailButton.classList.remove('toggled');
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this.outlineButton.classList.add('toggled');
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this.attachmentsButton.classList.remove('toggled');
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this.thumbnailView.classList.add('hidden');
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this.outlineView.classList.remove('hidden');
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this.attachmentsView.classList.add('hidden');
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this.outlineButton.classList.remove(UI_NOTIFICATION_CLASS);
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break;
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case SidebarView.ATTACHMENTS:
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if (this.attachmentsButton.disabled) {
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return;
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}
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this.thumbnailButton.classList.remove('toggled');
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this.outlineButton.classList.remove('toggled');
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this.attachmentsButton.classList.add('toggled');
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this.thumbnailView.classList.add('hidden');
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this.outlineView.classList.add('hidden');
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this.attachmentsView.classList.remove('hidden');
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this.attachmentsButton.classList.remove(UI_NOTIFICATION_CLASS);
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break;
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default:
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console.error('PDFSidebar_switchView: "' + view +
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'" is an unsupported value.');
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return;
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}
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// Update the active view *after* it has been validated above,
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// in order to prevent setting it to an invalid state.
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this.active = view | 0;
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};
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if (forceOpen && !this.isOpen) {
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this.open();
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return; // NOTE: Opening will trigger rendering, and dispatch the event.
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}
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if (shouldForceRendering) {
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this._forceRendering();
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}
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if (isViewChanged) {
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this._dispatchEvent();
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}
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this._hideUINotification(this.active);
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},
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if (!this.isOpen && view !== null) {
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// Only hide the notifications when the sidebar is currently open,
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// or when it is being reset (i.e. `view === null`).
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return;
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}
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this.toggleButton.classList.remove(UI_NOTIFICATION_CLASS);
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open: function PDFSidebar_open() {
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if (this.isOpen) {
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return;
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if (view !== null) {
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removeNotification(view);
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return;
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}
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for (view in SidebarView) { // Remove all sidebar notifications on reset.
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removeNotification(SidebarView[view]);
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}
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this.toggleButton.title = mozL10n.get('toggle_sidebar.title', null,
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'Toggle Sidebar');
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}
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/**
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* @private
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*/
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_addEventListeners() {
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this.mainContainer.addEventListener('transitionend', (evt) => {
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if (evt.target === this.mainContainer) {
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this.outerContainer.classList.remove('sidebarMoving');
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}
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this.isOpen = true;
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this.toggleButton.classList.add('toggled');
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});
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this.outerContainer.classList.add('sidebarMoving');
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this.outerContainer.classList.add('sidebarOpen');
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// Buttons for switching views.
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this.thumbnailButton.addEventListener('click', () => {
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this.switchView(SidebarView.THUMBS);
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});
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if (this.active === SidebarView.THUMBS) {
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this.outlineButton.addEventListener('click', () => {
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this.switchView(SidebarView.OUTLINE);
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});
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this.outlineButton.addEventListener('dblclick', () => {
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this.pdfOutlineViewer.toggleOutlineTree();
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});
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this.attachmentsButton.addEventListener('click', () => {
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this.switchView(SidebarView.ATTACHMENTS);
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});
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// Disable/enable views.
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this.eventBus.on('outlineloaded', (evt) => {
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var outlineCount = evt.outlineCount;
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this.outlineButton.disabled = !outlineCount;
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if (outlineCount) {
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this._showUINotification(SidebarView.OUTLINE);
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} else if (this.active === SidebarView.OUTLINE) {
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// If the outline view was opened during document load, switch away
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// from it if it turns out that the document has no outline.
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this.switchView(SidebarView.THUMBS);
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}
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});
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this.eventBus.on('attachmentsloaded', (evt) => {
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var attachmentsCount = evt.attachmentsCount;
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this.attachmentsButton.disabled = !attachmentsCount;
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if (attachmentsCount) {
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this._showUINotification(SidebarView.ATTACHMENTS);
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} else if (this.active === SidebarView.ATTACHMENTS) {
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// If the attachment view was opened during document load, switch away
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// from it if it turns out that the document has no attachments.
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this.switchView(SidebarView.THUMBS);
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}
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});
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// Update the thumbnailViewer, if visible, when exiting presentation mode.
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this.eventBus.on('presentationmodechanged', (evt) => {
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if (!evt.active && !evt.switchInProgress && this.isThumbnailViewVisible) {
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this._updateThumbnailViewer();
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}
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this._forceRendering();
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this._dispatchEvent();
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this._hideUINotification(this.active);
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},
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close: function PDFSidebar_close() {
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if (!this.isOpen) {
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return;
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}
|
||||
this.isOpen = false;
|
||||
this.toggleButton.classList.remove('toggled');
|
||||
|
||||
this.outerContainer.classList.add('sidebarMoving');
|
||||
this.outerContainer.classList.remove('sidebarOpen');
|
||||
|
||||
this._forceRendering();
|
||||
this._dispatchEvent();
|
||||
},
|
||||
|
||||
toggle: function PDFSidebar_toggle() {
|
||||
if (this.isOpen) {
|
||||
this.close();
|
||||
} else {
|
||||
this.open();
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_dispatchEvent: function PDFSidebar_dispatchEvent() {
|
||||
this.eventBus.dispatch('sidebarviewchanged', {
|
||||
source: this,
|
||||
view: this.visibleView,
|
||||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_forceRendering: function PDFSidebar_forceRendering() {
|
||||
if (this.onToggled) {
|
||||
this.onToggled();
|
||||
} else { // Fallback
|
||||
this.pdfViewer.forceRendering();
|
||||
this.pdfThumbnailViewer.forceRendering();
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_updateThumbnailViewer: function PDFSidebar_updateThumbnailViewer() {
|
||||
var pdfViewer = this.pdfViewer;
|
||||
var thumbnailViewer = this.pdfThumbnailViewer;
|
||||
|
||||
// Use the rendered pages to set the corresponding thumbnail images.
|
||||
var pagesCount = pdfViewer.pagesCount;
|
||||
for (var pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
|
||||
var pageView = pdfViewer.getPageView(pageIndex);
|
||||
if (pageView && pageView.renderingState === RenderingStates.FINISHED) {
|
||||
var thumbnailView = thumbnailViewer.getThumbnail(pageIndex);
|
||||
thumbnailView.setImage(pageView);
|
||||
}
|
||||
}
|
||||
thumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber);
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_showUINotification: function (view) {
|
||||
if (this.disableNotification) {
|
||||
return;
|
||||
}
|
||||
|
||||
this.toggleButton.title = mozL10n.get('toggle_sidebar_notification.title',
|
||||
null, 'Toggle Sidebar (document contains outline/attachments)');
|
||||
|
||||
if (!this.isOpen) {
|
||||
// Only show the notification on the `toggleButton` if the sidebar is
|
||||
// currently closed, to avoid unnecessarily bothering the user.
|
||||
this.toggleButton.classList.add(UI_NOTIFICATION_CLASS);
|
||||
} else if (view === this.active) {
|
||||
// If the sidebar is currently open *and* the `view` is visible, do not
|
||||
// bother the user with a notification on the corresponding button.
|
||||
return;
|
||||
}
|
||||
|
||||
switch (view) {
|
||||
case SidebarView.OUTLINE:
|
||||
this.outlineButton.classList.add(UI_NOTIFICATION_CLASS);
|
||||
break;
|
||||
case SidebarView.ATTACHMENTS:
|
||||
this.attachmentsButton.classList.add(UI_NOTIFICATION_CLASS);
|
||||
break;
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_hideUINotification: function (view) {
|
||||
if (this.disableNotification) {
|
||||
return;
|
||||
}
|
||||
|
||||
var removeNotification = function (view) {
|
||||
switch (view) {
|
||||
case SidebarView.OUTLINE:
|
||||
this.outlineButton.classList.remove(UI_NOTIFICATION_CLASS);
|
||||
break;
|
||||
case SidebarView.ATTACHMENTS:
|
||||
this.attachmentsButton.classList.remove(UI_NOTIFICATION_CLASS);
|
||||
break;
|
||||
}
|
||||
}.bind(this);
|
||||
|
||||
if (!this.isOpen && view !== null) {
|
||||
// Only hide the notifications when the sidebar is currently open,
|
||||
// or when it is being reset (i.e. `view === null`).
|
||||
return;
|
||||
}
|
||||
this.toggleButton.classList.remove(UI_NOTIFICATION_CLASS);
|
||||
|
||||
if (view !== null) {
|
||||
removeNotification(view);
|
||||
return;
|
||||
}
|
||||
for (view in SidebarView) { // Remove all sidebar notifications on reset.
|
||||
removeNotification(SidebarView[view]);
|
||||
}
|
||||
|
||||
this.toggleButton.title = mozL10n.get('toggle_sidebar.title', null,
|
||||
'Toggle Sidebar');
|
||||
},
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
_addEventListeners: function PDFSidebar_addEventListeners() {
|
||||
var self = this;
|
||||
|
||||
self.mainContainer.addEventListener('transitionend', function(evt) {
|
||||
if (evt.target === /* mainContainer */ this) {
|
||||
self.outerContainer.classList.remove('sidebarMoving');
|
||||
}
|
||||
});
|
||||
|
||||
// Buttons for switching views.
|
||||
self.thumbnailButton.addEventListener('click', function() {
|
||||
self.switchView(SidebarView.THUMBS);
|
||||
});
|
||||
|
||||
self.outlineButton.addEventListener('click', function() {
|
||||
self.switchView(SidebarView.OUTLINE);
|
||||
});
|
||||
self.outlineButton.addEventListener('dblclick', function() {
|
||||
self.pdfOutlineViewer.toggleOutlineTree();
|
||||
});
|
||||
|
||||
self.attachmentsButton.addEventListener('click', function() {
|
||||
self.switchView(SidebarView.ATTACHMENTS);
|
||||
});
|
||||
|
||||
// Disable/enable views.
|
||||
self.eventBus.on('outlineloaded', function(e) {
|
||||
var outlineCount = e.outlineCount;
|
||||
|
||||
self.outlineButton.disabled = !outlineCount;
|
||||
|
||||
if (outlineCount) {
|
||||
self._showUINotification(SidebarView.OUTLINE);
|
||||
} else if (self.active === SidebarView.OUTLINE) {
|
||||
// If the outline view was opened during document load, switch away
|
||||
// from it if it turns out that the document has no outline.
|
||||
self.switchView(SidebarView.THUMBS);
|
||||
}
|
||||
});
|
||||
|
||||
self.eventBus.on('attachmentsloaded', function(e) {
|
||||
var attachmentsCount = e.attachmentsCount;
|
||||
|
||||
self.attachmentsButton.disabled = !attachmentsCount;
|
||||
|
||||
if (attachmentsCount) {
|
||||
self._showUINotification(SidebarView.ATTACHMENTS);
|
||||
} else if (self.active === SidebarView.ATTACHMENTS) {
|
||||
// If the attachment view was opened during document load, switch away
|
||||
// from it if it turns out that the document has no attachments.
|
||||
self.switchView(SidebarView.THUMBS);
|
||||
}
|
||||
});
|
||||
|
||||
// Update the thumbnailViewer, if visible, when exiting presentation mode.
|
||||
self.eventBus.on('presentationmodechanged', function(e) {
|
||||
if (!e.active && !e.switchInProgress && self.isThumbnailViewVisible) {
|
||||
self._updateThumbnailViewer();
|
||||
}
|
||||
});
|
||||
},
|
||||
};
|
||||
|
||||
return PDFSidebar;
|
||||
})();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
export {
|
||||
SidebarView,
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user