Fix possible exception when disposing terminal

Fixes #4757
xtermjs · Sep 10, 2023 · cc43fe5 · cc43fe5
1 parent cfced0c
commit cc43fe5
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/src/browser/services/RenderService.ts b/src/browser/services/RenderService.ts
@@ -203,11 +203,14 @@ export class RenderService extends Disposable implements IRenderService {
 
   public setRenderer(renderer: IRenderer): void {
     this._renderer.value = renderer;
-    this._renderer.value.onRequestRedraw(e => this.refreshRows(e.start, e.end, true));
+    // If the value was not set, the terminal is being disposed so ignore it
+    if (this._renderer.value) {
+      this._renderer.value.onRequestRedraw(e => this.refreshRows(e.start, e.end, true));
 
-    // Force a refresh
-    this._needsSelectionRefresh = true;
-    this._fullRefresh();
+      // Force a refresh
+      this._needsSelectionRefresh = true;
+      this._fullRefresh();
+    }
   }
 
   public addRefreshCallback(callback: FrameRequestCallback): number {