Add context for when the webview supports find

Use this to disable the webview find command in those cases

src/vs/workbench/contrib/webview/browser/dynamicWebviewEditorOverlay.ts

@@ -11,7 +11,7 @@ import { URI } from 'vs/base/common/uri';
 import { Disposable, DisposableStore, MutableDisposable } from 'vs/base/common/lifecycle';
 import { IContextKey, IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 import { ExtensionIdentifier } from 'vs/platform/extensions/common/extensions';
-import { IWebviewService, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE, Webview, WebviewContentOptions, WebviewElement, WebviewExtensionDescription, WebviewOptions, WebviewOverlay } from 'vs/workbench/contrib/webview/browser/webview';
+import { IWebviewService, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_ENABLED, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE, Webview, WebviewContentOptions, WebviewElement, WebviewExtensionDescription, WebviewOptions, WebviewOverlay } from 'vs/workbench/contrib/webview/browser/webview';
 import { ILayoutService } from 'vs/platform/layout/browser/layoutService';
 
 /**
@@ -38,6 +38,7 @@ export class DynamicWebviewEditorOverlay extends Disposable implements WebviewOv
 
 	private readonly _scopedContextKeyService = this._register(new MutableDisposable<IContextKeyService>());
 	private _findWidgetVisible: IContextKey<boolean> | undefined;
+	private _findWidgetEnabled: IContextKey<boolean> | undefined;
 
 	public constructor(
 		public readonly id: string,
@@ -97,6 +98,10 @@ export class DynamicWebviewEditorOverlay extends Disposable implements WebviewOv
 
 			this._findWidgetVisible?.reset();
 			this._findWidgetVisible = KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE.bindTo(contextKeyService);
+
+			this._findWidgetEnabled?.reset();
+			this._findWidgetEnabled = KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_ENABLED.bindTo(contextKeyService);
+			this._findWidgetEnabled.set(!!this.options.enableFindWidget);
 		}
 	}
 
@@ -144,6 +149,8 @@ export class DynamicWebviewEditorOverlay extends Disposable implements WebviewOv
 				webview.initialScrollProgress = this._initialScrollProgress;
 			}
 
+			this._findWidgetEnabled?.set(!!this.options.enableFindWidget);
+
 			webview.mountTo(this.container);
 
 			// Forward events from inner webview to outer listeners

src/vs/workbench/contrib/webview/browser/webview.ts

@@ -18,6 +18,8 @@ import { createDecorator } from 'vs/platform/instantiation/common/instantiation'
  */
 export const KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE = new RawContextKey<boolean>('webviewFindWidgetVisible', false);
 export const KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_FOCUSED = new RawContextKey<boolean>('webviewFindWidgetFocused', false);
+export const KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_ENABLED = new RawContextKey<boolean>('webviewFindWidgetEnabled', false);
+
 
 export const webviewHasOwnEditFunctionsContextKey = 'webviewHasOwnEditFunctions';
 export const webviewHasOwnEditFunctionsContext = new RawContextKey<boolean>(webviewHasOwnEditFunctionsContextKey, false);

src/vs/workbench/contrib/webviewPanel/browser/webviewCommands.ts

@@ -10,7 +10,7 @@ import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
 import { ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
 import { KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry';
 import { CATEGORIES } from 'vs/workbench/common/actions';
-import { KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_FOCUSED, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE, Webview } from 'vs/workbench/contrib/webview/browser/webview';
+import { KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_ENABLED, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_FOCUSED, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_VISIBLE, Webview } from 'vs/workbench/contrib/webview/browser/webview';
 import { WebviewEditor } from 'vs/workbench/contrib/webviewPanel/browser/webviewEditor';
 import { WebviewInput } from 'vs/workbench/contrib/webviewPanel/browser/webviewEditorInput';
 import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
@@ -26,7 +26,7 @@ export class ShowWebViewEditorFindWidgetAction extends Action2 {
 			id: ShowWebViewEditorFindWidgetAction.ID,
 			title: ShowWebViewEditorFindWidgetAction.LABEL,
 			keybinding: {
-				when: webviewActiveContextKeyExpr,
+				when: ContextKeyExpr.and(webviewActiveContextKeyExpr, KEYBINDING_CONTEXT_WEBVIEW_FIND_WIDGET_ENABLED),
 				primary: KeyMod.CtrlCmd | KeyCode.KEY_F,
 				weight: KeybindingWeight.EditorContrib
 			}