fix(module:drawer): create focus trap error when nzVisible default …

…value is true close #3200
NG-ZORRO · Apr 1, 2019 · 5b95ebe · 5b95ebe
1 parent 51c0d53
commit 5b95ebe
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/components/drawer/nz-drawer.component.ts b/components/drawer/nz-drawer.component.ts
@@ -296,10 +296,10 @@ export class NzDrawerComponent<T = any, R = any, D = any> extends NzDrawerRef<R>
   }
 
   private trapFocus(): void {
-    if (!this.focusTrap) {
+    if (!this.focusTrap && this.overlayRef && this.overlayRef.overlayElement) {
       this.focusTrap = this.focusTrapFactory.create(this.overlayRef!.overlayElement);
+      this.focusTrap.focusInitialElement();
     }
-    this.focusTrap.focusInitialElement();
   }
 
   private restoreFocus(): void {