webiew: add support for activeWebviewPanelId

The commit adds support for the `activeWebviewPanelId` when-context-clause. Signed-off-by: vince-fugnitto <[email protected]>
eclipse-theia · Feb 14, 2023 · 7df1167 · 7df1167
1 parent ac339db
commit 7df1167
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/packages/plugin-ext/src/main/browser/webview/webview.ts b/packages/plugin-ext/src/main/browser/webview/webview.ts
@@ -50,6 +50,7 @@ import { FileOperationError, FileOperationResult } from '@theia/filesystem/lib/c
 import { BinaryBufferReadableStream } from '@theia/core/lib/common/buffer';
 import { ViewColumn } from '../../../plugin/types-impl';
 import { ExtractableWidget } from '@theia/core/lib/browser/widgets/extractable-widget';
+import { ContextKey, ContextKeyService } from '@theia/core/lib/browser/context-key-service';
 
 // Style from core
 const TRANSPARENT_OVERLAY_STYLE = 'theia-transparent-overlay';
@@ -105,6 +106,11 @@ export class WebviewWidget extends BaseWidget implements StatefulWidget, Extract
     // On `mousedown` we put a transparent div over the `iframe` to avoid losing the mouse tacking.
     protected transparentOverlay: HTMLElement;
 
+    protected _activeWebviewPanelId: ContextKey<string | undefined>;
+    get activeWebviewPanelId(): ContextKey<string | undefined> {
+        return this._activeWebviewPanelId;
+    }
+
     @inject(WebviewWidgetIdentifier)
     readonly identifier: WebviewWidgetIdentifier;
 
@@ -144,6 +150,9 @@ export class WebviewWidget extends BaseWidget implements StatefulWidget, Extract
     @inject(WebviewResourceCache)
     protected readonly resourceCache: WebviewResourceCache;
 
+    @inject(ContextKeyService)
+    protected readonly contextKeyService: ContextKeyService;
+
     viewState: WebviewPanelViewState = {
         visible: false,
         active: false,
@@ -202,6 +211,15 @@ export class WebviewWidget extends BaseWidget implements StatefulWidget, Extract
                 this.transparentOverlay.style.display = 'none';
             }
         }));
+
+        this._activeWebviewPanelId = this.contextKeyService.createKey<string | undefined>('activeWebviewPanelId', undefined);
+        this.toDispose.push(this.onDidChangeVisibility(() => {
+            if (this.isVisible) {
+                this.activeWebviewPanelId.set(this.viewType);
+            } else {
+                this.activeWebviewPanelId.set(undefined);
+            }
+        }));
     }
 
     protected override onBeforeAttach(msg: Message): void {