Move webview's use of setIgnoreMenuShortcuts to main processes

Part of microsoft#95955

Switches from calling `setIgnoreMenuShortcuts` on the renderer to calling it on the main thread

Author: mjbvz

src/vs/code/electron-main/app.ts

@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import { app, ipcMain as ipc, systemPreferences, shell, Event, contentTracing, protocol, powerMonitor, IpcMainEvent, BrowserWindow, dialog, session } from 'electron';
+import { app, ipcMain as ipc, systemPreferences, shell, Event, contentTracing, protocol, powerMonitor, IpcMainEvent, BrowserWindow, dialog, session, webContents } from 'electron';
 import { IProcessEnvironment, isWindows, isMacintosh } from 'vs/base/common/platform';
 import { WindowsMainService } from 'vs/platform/windows/electron-main/windowsMainService';
 import { IWindowOpenable } from 'vs/platform/windows/common/windows';
@@ -296,6 +296,16 @@ export class CodeApplication extends Disposable {
 
 		ipc.on('vscode:reloadWindow', (event: IpcMainEvent) => event.sender.reload());
 
+		ipc.on('vscode:webview.setIgnoreMenuShortcuts', (_event: IpcMainEvent, webContentsId: number, enabled: boolean) => {
+			const contents = webContents.fromId(webContentsId);
+			if (!contents) {
+				throw new Error(`Invalid webContentsId: ${webContentsId}`);
+			}
+			if (!contents.isDestroyed()) {
+				contents.setIgnoreMenuShortcuts(enabled);
+			}
+		});
+
 		// Some listeners after window opened
 		(async () => {
 			await this.lifecycleMainService.when(LifecycleMainPhase.AfterWindowOpen);

src/vs/workbench/contrib/webview/electron-browser/webviewElement.ts

@@ -184,26 +184,23 @@ class WebviewPortMappingProvider extends Disposable {
 
 class WebviewKeyboardHandler {
 
-	private readonly _webviews = new Set<WebviewTagHandle>();
+	private readonly _webviews = new Set<WebviewTag>();
 	private readonly _isUsingNativeTitleBars: boolean;
 
 	constructor(configurationService: IConfigurationService) {
 		this._isUsingNativeTitleBars = configurationService.getValue<string>('window.titleBarStyle') === 'native';
 	}
 
-	public add(
-		webviewHandle: WebviewTagHandle,
-	): IDisposable {
-		this._webviews.add(webviewHandle);
+	public add(webview: WebviewTag): IDisposable {
+		this._webviews.add(webview);
 
 		const disposables = new DisposableStore();
+
 		if (this.shouldToggleMenuShortcutsEnablement) {
-			disposables.add(webviewHandle.onFirstLoad(() => {
-				this.setIgnoreMenuShortcutsForWebview(webviewHandle, true);
-			}));
+			this.setIgnoreMenuShortcutsForWebview(webview, true);
 		}
 
-		disposables.add(addDisposableListener(webviewHandle.webview, 'ipc-message', (event) => {
+		disposables.add(addDisposableListener(webview, 'ipc-message', (event) => {
 			switch (event.channel) {
 				case 'did-focus':
 					this.setIgnoreMenuShortcuts(true);
@@ -217,7 +214,7 @@ class WebviewKeyboardHandler {
 
 		return toDisposable(() => {
 			disposables.dispose();
-			this._webviews.delete(webviewHandle);
+			this._webviews.delete(webview);
 		});
 	}
 
@@ -231,12 +228,9 @@ class WebviewKeyboardHandler {
 		}
 	}
 
-	private setIgnoreMenuShortcutsForWebview(webview: WebviewTagHandle, value: boolean) {
+	private setIgnoreMenuShortcutsForWebview(webview: WebviewTag, value: boolean) {
 		if (this.shouldToggleMenuShortcutsEnablement) {
-			const contents = webview.webContents;
-			if (!contents?.isDestroyed()) {
-				contents?.setIgnoreMenuShortcuts(value);
-			}
+			ipcRenderer.send('vscode:webview.setIgnoreMenuShortcuts', webview.getWebContentsId(), value);
 		}
 	}
 }
@@ -290,7 +284,9 @@ export class ElectronWebviewBasedWebview extends BaseWebview<WebviewTag> impleme
 			tunnelService,
 		));
 
-		this._register(ElectronWebviewBasedWebview.getWebviewKeyboardHandler(configurationService).add(webviewAndContents));
+		this._register(addDisposableListener(this.element!, 'did-start-loading', once(() => {
+			this._register(ElectronWebviewBasedWebview.getWebviewKeyboardHandler(configurationService).add(this.element!));
+		})));
 
 		this._domReady = new Promise(resolve => {
 			const subscription = this._register(this.on(WebviewMessageChannels.webviewReady, () => {