Support vscode's titleBarStyle

CHANGELOG.md

@@ -7,7 +7,10 @@
 <a name="breaking_changes_1.18.0">[Breaking Changes:](#breaking_changes_1.18.0)</a>
 
 - [core] added `BreadcrumbsRendererFactory` to constructor arguments of `DockPanelRenderer` and `ToolbarAwareTabBar`. [#9920](https://github.com/eclipse-theia/theia/pull/9920)
-
+- [electron] `ElectronMainMenuFactory` now inherits from `BrowserMainMenuFactory` and had its methods renamed. [#10044](https://github.com/eclipse-theia/theia/pull/10044)
+  - renamed `handleDefault` to `handleElectronDefault`
+  - renamed `createContextMenu` to `createElectronContextMenu`
+  - renamed `createMenuBar` to `createElectronMenuBar`
 ## v1.17.2 - 9/1/2021
 
 [1.17.2 Milestone](https://github.com/eclipse-theia/theia/milestone/27)

examples/api-samples/src/electron-browser/menu/sample-electron-menu-module.ts

@@ -27,7 +27,7 @@ export default new ContainerModule((bind, unbind, isBound, rebind) => {
 class SampleElectronMainMenuFactory extends ElectronMainMenuFactory {
 
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    protected handleDefault(menuNode: CompositeMenuNode, args: any[] = [], options?: ElectronMenuOptions): Electron.MenuItemConstructorOptions[] {
+    protected handleElectronDefault(menuNode: CompositeMenuNode, args: any[] = [], options?: ElectronMenuOptions): Electron.MenuItemConstructorOptions[] {
         if (menuNode instanceof PlaceholderMenuNode) {
             return [{
                 label: menuNode.label,

examples/api-samples/src/electron-browser/updater/sample-updater-frontend-contribution.ts

@@ -90,7 +90,7 @@ export class ElectronMenuUpdater {
         this.setMenu();
     }
 
-    private setMenu(menu: Menu | null = this.factory.createMenuBar(), electronWindow: BrowserWindow = remote.getCurrentWindow()): void {
+    private setMenu(menu: Menu | null = this.factory.createElectronMenuBar(), electronWindow: BrowserWindow = remote.getCurrentWindow()): void {
         if (isOSX) {
             remote.Menu.setApplicationMenu(menu);
         } else {

packages/core/src/browser/menu/browser-context-menu-renderer.ts

@@ -36,7 +36,7 @@ export class BrowserContextMenuRenderer extends ContextMenuRenderer {
         super();
     }
 
-    protected doRender({ menuPath, anchor, args, onHide }: RenderContextMenuOptions): BrowserContextMenuAccess {
+    protected doRender({ menuPath, anchor, args, onHide }: RenderContextMenuOptions): ContextMenuAccess {
         const contextMenu = this.menuFactory.createContextMenu(menuPath, args);
         const { x, y } = coordinateFromAnchor(anchor);
         if (onHide) {

packages/core/src/electron-browser/menu/electron-context-menu-renderer.ts

@@ -17,11 +17,14 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
 import * as electron from '../../../shared/electron';
-import { inject, injectable } from 'inversify';
-import { ContextMenuRenderer, RenderContextMenuOptions, ContextMenuAccess, FrontendApplicationContribution, CommonCommands, coordinateFromAnchor } from '../../browser';
+import { inject, injectable, postConstruct } from 'inversify';
+import {
+    ContextMenuRenderer, RenderContextMenuOptions, ContextMenuAccess, FrontendApplicationContribution, CommonCommands, coordinateFromAnchor, PreferenceService
+} from '../../browser';
 import { ElectronMainMenuFactory } from './electron-main-menu-factory';
 import { ContextMenuContext } from '../../browser/menu/context-menu-context';
 import { MenuPath, MenuContribution, MenuModelRegistry } from '../../common';
+import { BrowserContextMenuRenderer } from '../../browser/menu/browser-context-menu-renderer';
 
 export class ElectronContextMenuAccess extends ContextMenuAccess {
     constructor(readonly menu: electron.Menu) {
@@ -73,27 +76,48 @@ export class ElectronTextInputContextMenuContribution implements FrontendApplica
 }
 
 @injectable()
-export class ElectronContextMenuRenderer extends ContextMenuRenderer {
+export class ElectronContextMenuRenderer extends BrowserContextMenuRenderer {
 
     @inject(ContextMenuContext)
     protected readonly context: ContextMenuContext;
 
-    constructor(@inject(ElectronMainMenuFactory) private menuFactory: ElectronMainMenuFactory) {
-        super();
+    @inject(PreferenceService)
+    protected readonly preferenceService: PreferenceService;
+
+    protected customTitleBarStyle: boolean = false;
+
+    constructor(@inject(ElectronMainMenuFactory) private electronMenuFactory: ElectronMainMenuFactory) {
+        super(electronMenuFactory);
+    }
+
+    @postConstruct()
+    protected async init(): Promise<void> {
+        const isCustom = (style?: string): boolean => (style || this.preferenceService.get('window.titleBarStyle')) === 'custom';
+        await this.preferenceService.ready;
+        this.customTitleBarStyle = isCustom();
+        electron.ipcRenderer.on('original-titleBarStyle', (_event, style: string) => {
+            this.customTitleBarStyle = isCustom(style);
+        });
+        electron.ipcRenderer.send('request-titleBarStyle');
     }
 
-    protected doRender({ menuPath, anchor, args, onHide }: RenderContextMenuOptions): ElectronContextMenuAccess {
-        const menu = this.menuFactory.createContextMenu(menuPath, args);
-        const { x, y } = coordinateFromAnchor(anchor);
-        const zoom = electron.webFrame.getZoomFactor();
-        // x and y values must be Ints or else there is a conversion error
-        menu.popup({ x: Math.round(x * zoom), y: Math.round(y * zoom) });
-        // native context menu stops the event loop, so there is no keyboard events
-        this.context.resetAltPressed();
-        if (onHide) {
-            menu.once('menu-will-close', () => onHide());
+    protected doRender(options: RenderContextMenuOptions): ContextMenuAccess {
+        if (this.customTitleBarStyle) {
+            return super.doRender(options);
+        } else {
+            const { menuPath, anchor, args, onHide } = options;
+            const menu = this.electronMenuFactory.createElectronContextMenu(menuPath, args);
+            const { x, y } = coordinateFromAnchor(anchor);
+            const zoom = electron.webFrame.getZoomFactor();
+            // x and y values must be Ints or else there is a conversion error
+            menu.popup({ x: Math.round(x * zoom), y: Math.round(y * zoom) });
+            // native context menu stops the event loop, so there is no keyboard events
+            this.context.resetAltPressed();
+            if (onHide) {
+                menu.once('menu-will-close', () => onHide());
+            }
+            return new ElectronContextMenuAccess(menu);
         }
-        return new ElectronContextMenuAccess(menu);
     }
 
 }

packages/core/src/electron-browser/menu/electron-main-menu-factory.ts

@@ -24,10 +24,9 @@ import {
 } from '../../common';
 import { Keybinding } from '../../common/keybinding';
 import { PreferenceService, KeybindingRegistry, CommonCommands } from '../../browser';
-import { ContextKeyService } from '../../browser/context-key-service';
 import debounce = require('lodash.debounce');
-import { ContextMenuContext } from '../../browser/menu/context-menu-context';
 import { MAXIMIZED_CLASS } from '../../browser/shell/theia-dock-panel';
+import { BrowserMainMenuFactory } from '../../browser/menu/browser-menu-plugin';
 
 /**
  * Representation of possible electron menu options.
@@ -55,23 +54,18 @@ export type ElectronMenuItemRole = ('undo' | 'redo' | 'cut' | 'copy' | 'paste' |
     'moveTabToNewWindow' | 'windowMenu');
 
 @injectable()
-export class ElectronMainMenuFactory {
+export class ElectronMainMenuFactory extends BrowserMainMenuFactory {
 
     protected _menu: Electron.Menu | undefined;
     protected _toggledCommands: Set<string> = new Set();
 
-    @inject(ContextKeyService)
-    protected readonly contextKeyService: ContextKeyService;
-
-    @inject(ContextMenuContext)
-    protected readonly context: ContextMenuContext;
-
     constructor(
         @inject(CommandRegistry) protected readonly commandRegistry: CommandRegistry,
         @inject(PreferenceService) protected readonly preferencesService: PreferenceService,
         @inject(MenuModelRegistry) protected readonly menuProvider: MenuModelRegistry,
         @inject(KeybindingRegistry) protected readonly keybindingRegistry: KeybindingRegistry
     ) {
+        super();
         preferencesService.onPreferenceChanged(
             debounce(e => {
                 if (e.preferenceName === 'window.menuBarVisibility') {
@@ -92,15 +86,16 @@ export class ElectronMainMenuFactory {
 
     async setMenuBar(): Promise<void> {
         await this.preferencesService.ready;
-        const createdMenuBar = this.createMenuBar();
         if (isOSX) {
+            const createdMenuBar = this.createElectronMenuBar();
             electron.remote.Menu.setApplicationMenu(createdMenuBar);
-        } else {
+        } else if (this.preferencesService.get('window.titleBarStyle') === 'native') {
+            const createdMenuBar = this.createElectronMenuBar();
             electron.remote.getCurrentWindow().setMenu(createdMenuBar);
         }
     }
 
-    createMenuBar(): Electron.Menu | null {
+    createElectronMenuBar(): Electron.Menu | null {
         const preference = this.preferencesService.get<string>('window.menuBarVisibility') || 'classic';
         const maxWidget = document.getElementsByClassName(MAXIMIZED_CLASS);
         if (preference === 'visible' || (preference === 'classic' && maxWidget.length === 0)) {
@@ -118,7 +113,7 @@ export class ElectronMainMenuFactory {
         return null;
     }
 
-    createContextMenu(menuPath: MenuPath, args?: any[]): Electron.Menu {
+    createElectronContextMenu(menuPath: MenuPath, args?: any[]): Electron.Menu {
         const menuModel = this.menuProvider.getMenu(menuPath);
         const template = this.fillMenuTemplate([], menuModel, args, { showDisabled: false });
         return electron.remote.Menu.buildFromTemplate(template);
@@ -221,13 +216,13 @@ export class ElectronMainMenuFactory {
                     this._toggledCommands.add(commandId);
                 }
             } else {
-                items.push(...this.handleDefault(menu, args, options));
+                items.push(...this.handleElectronDefault(menu, args, options));
             }
         }
         return items;
     }
 
-    protected handleDefault(menuNode: MenuNode, args: any[] = [], options?: ElectronMenuOptions): Electron.MenuItemConstructorOptions[] {
+    protected handleElectronDefault(menuNode: MenuNode, args: any[] = [], options?: ElectronMenuOptions): Electron.MenuItemConstructorOptions[] {
         return [];
     }
 

packages/core/src/electron-browser/menu/electron-menu-contribution.ts

@@ -20,11 +20,14 @@ import {
     Command, CommandContribution, CommandRegistry,
     isOSX, isWindows, MenuModelRegistry, MenuContribution, Disposable
 } from '../../common';
-import { ApplicationShell, KeybindingContribution, KeybindingRegistry, PreferenceScope, PreferenceService } from '../../browser';
+import { ApplicationShell, codicon, ConfirmDialog, KeybindingContribution, KeybindingRegistry, PreferenceScope, PreferenceService, Widget } from '../../browser';
 import { FrontendApplication, FrontendApplicationContribution, CommonMenus } from '../../browser';
 import { ElectronMainMenuFactory } from './electron-main-menu-factory';
 import { FrontendApplicationStateService, FrontendApplicationState } from '../../browser/frontend-application-state';
 import { ZoomLevel } from '../window/electron-window-preferences';
+import { BrowserMenuBarContribution } from '../../browser/menu/browser-menu-plugin';
+
+import '../../../src/electron-browser/menu/electron-menu-style.css';
 
 export namespace ElectronCommands {
     export const TOGGLE_DEVELOPER_TOOLS: Command = {
@@ -72,38 +75,36 @@ export namespace ElectronMenus {
 }
 
 @injectable()
-export class ElectronMenuContribution implements FrontendApplicationContribution, CommandContribution, MenuContribution, KeybindingContribution {
+export class ElectronMenuContribution extends BrowserMenuBarContribution implements FrontendApplicationContribution, CommandContribution, MenuContribution, KeybindingContribution {
 
     @inject(FrontendApplicationStateService)
     protected readonly stateService: FrontendApplicationStateService;
 
     @inject(PreferenceService)
     protected readonly preferenceService: PreferenceService;
 
+    protected titleBarStyleChangeFlag = false;
+    protected titleBarStyle?: string;
+
     constructor(
         @inject(ElectronMainMenuFactory) protected readonly factory: ElectronMainMenuFactory,
         @inject(ApplicationShell) protected shell: ApplicationShell
-    ) { }
+    ) {
+        super(factory);
+    }
 
     onStart(app: FrontendApplication): void {
-        this.hideTopPanel(app);
-        this.preferenceService.ready.then(() => {
-            this.setMenu();
-            electron.remote.getCurrentWindow().setMenuBarVisibility(true);
-        });
+        this.handleTitleBarStyling(app);
         if (isOSX) {
             // OSX: Recreate the menus when changing windows.
             // OSX only has one menu bar for all windows, so we need to swap
             // between them as the user switches windows.
-            electron.remote.getCurrentWindow().on('focus', () => this.setMenu());
+            electron.remote.getCurrentWindow().on('focus', () => this.setMenu(app));
         }
         // Make sure the application menu is complete, once the frontend application is ready.
         // https://github.com/theia-ide/theia/issues/5100
         let onStateChange: Disposable | undefined = undefined;
         const stateServiceListener = (state: FrontendApplicationState) => {
-            if (state === 'ready') {
-                this.setMenu();
-            }
             if (state === 'closing_window') {
                 if (!!onStateChange) {
                     onStateChange.dispose();
@@ -119,6 +120,28 @@ export class ElectronMenuContribution implements FrontendApplicationContribution
         });
     }
 
+    handleTitleBarStyling(app: FrontendApplication): void {
+        this.hideTopPanel(app);
+        electron.ipcRenderer.on('original-titleBarStyle', (_event, style: string) => {
+            this.titleBarStyle = style;
+        });
+        electron.ipcRenderer.send('request-titleBarStyle');
+        this.preferenceService.ready.then(() => {
+            this.titleBarStyle = this.titleBarStyle ?? this.preferenceService.get('window.titleBarStyle');
+            this.setMenu(app);
+            electron.remote.getCurrentWindow().setMenuBarVisibility(true);
+            setTimeout(() => {
+                this.titleBarStyleChangeFlag = true;
+            }, 1000);
+        });
+        this.preferenceService.onPreferenceChanged(change => {
+            if (change.preferenceName === 'window.titleBarStyle' && this.titleBarStyleChangeFlag && electron.remote.getCurrentWindow().isFocused()) {
+                electron.ipcRenderer.send('titleBarStyle-changed', change.newValue);
+                this.handleRequiredRestart();
+            }
+        });
+    }
+
     handleToggleMaximized(): void {
         const preference = this.preferenceService.get('window.menuBarVisibility');
         if (preference === 'classic') {
@@ -129,29 +152,90 @@ export class ElectronMenuContribution implements FrontendApplicationContribution
     /**
      * Makes the `theia-top-panel` hidden as it is unused for the electron-based application.
      * The `theia-top-panel` is used as the container of the main, application menu-bar for the
-     * browser. Electron has it's own.
+     * browser. Native Electron has it's own.
      * By default, this method is called on application `onStart`.
      */
     protected hideTopPanel(app: FrontendApplication): void {
         const itr = app.shell.children();
         let child = itr.next();
         while (child) {
-            // Top panel for the menu contribution is not required for Electron.
+            // Top panel for the menu contribution is not required for native Electron title bar.
             if (child.id === 'theia-top-panel') {
-                child.setHidden(true);
+                child.setHidden(this.titleBarStyle !== 'custom');
                 child = undefined;
             } else {
                 child = itr.next();
             }
         }
     }
 
-    private setMenu(menu: electron.Menu | null = this.factory.createMenuBar(), electronWindow: electron.BrowserWindow = electron.remote.getCurrentWindow()): void {
+    protected setMenu(app: FrontendApplication, electronMenu: electron.Menu | null = this.factory.createElectronMenuBar(),
+        electronWindow: electron.BrowserWindow = electron.remote.getCurrentWindow()): void {
         if (isOSX) {
-            electron.remote.Menu.setApplicationMenu(menu);
+            electron.remote.Menu.setApplicationMenu(electronMenu);
         } else {
+            this.hideTopPanel(app);
+            if (this.titleBarStyle === 'custom' && !this.menuBar) {
+                const dragPanel = new Widget();
+                dragPanel.id = 'theia-drag-panel';
+                app.shell.addWidget(dragPanel, { area: 'top' });
+                const logo = this.createLogo();
+                app.shell.addWidget(logo, { area: 'top' });
+                const menu = this.factory.createMenuBar();
+                app.shell.addWidget(menu, { area: 'top' });
+                menu.setHidden(['compact', 'hidden'].includes(this.preferenceService.get('window.menuBarVisibility', '')));
+                this.preferenceService.onPreferenceChanged(change => {
+                    if (change.preferenceName === 'window.menuBarVisibility') {
+                        menu.setHidden(['compact', 'hidden'].includes(change.newValue));
+                    }
+                });
+                const controls = document.createElement('div');
+                controls.id = 'window-controls';
+                controls.append(
+                    this.createControlButton('minimize', () => electronWindow.minimize()),
+                    this.createControlButton('maximize', () => electronWindow.maximize()),
+                    this.createControlButton('restore', () => electronWindow.unmaximize()),
+                    this.createControlButton('close', () => electronWindow.close())
+                );
+                app.shell.topPanel.node.append(controls);
+                this.handleWindowControls(electronWindow);
+            }
             // Unix/Windows: Set the per-window menus
-            electronWindow.setMenu(menu);
+            electronWindow.setMenu(electronMenu);
+        }
+    }
+
+    protected handleWindowControls(electronWindow: electron.BrowserWindow): void {
+        toggleControlButtons();
+        electronWindow.on('maximize', toggleControlButtons);
+        electronWindow.on('unmaximize', toggleControlButtons);
+
+        function toggleControlButtons(): void {
+            if (electronWindow.isMaximized()) {
+                document.body.classList.add('maximized');
+            } else {
+                document.body.classList.remove('maximized');
+            }
+        }
+    }
+
+    protected createControlButton(id: string, handler: () => void): HTMLElement {
+        const button = document.createElement('div');
+        button.id = `${id}-button`;
+        button.className = `control-button ${codicon(`chrome-${id}`)}`;
+        button.addEventListener('click', handler);
+        return button;
+    }
+
+    protected async handleRequiredRestart(): Promise<void> {
+        const dialog = new ConfirmDialog({
+            title: 'A setting has changed that requires a restart to take effect',
+            msg: 'Press the restart button to restart the application and enable the setting.',
+            ok: 'Restart',
+            cancel: 'Cancel'
+        });
+        if (await dialog.open()) {
+            electron.ipcRenderer.send('restart');
         }
     }