MOBILE-3068 splitview: Force only one push at a time

src/components/split-view/split-view.ts

@@ -60,6 +60,7 @@ export class CoreSplitViewComponent implements OnInit, OnDestroy {
     protected ignoreSplitChanged = false;
     protected audioCaptureSubscription: Subscription;
     protected languageChangedSubscription: Subscription;
+    protected pushOngoing: boolean;
 
     // Empty placeholder for the 'detail' page.
     detailPage: any = null;
@@ -185,20 +186,29 @@ export class CoreSplitViewComponent implements OnInit, OnDestroy {
      * @param {boolean} [retrying] Whether it's retrying.
      */
     push(page: any, params?: any, retrying?: boolean): void {
+        // Check there's no ongoing push.
+        if (!this.pushOngoing) {
             if (typeof this.isEnabled == 'undefined' && !retrying) {
                 // Hasn't calculated if it's enabled yet. Wait a bit and try again.
                 setTimeout(() => {
                     this.push(page, params, true);
                 }, 200);
             } else {
+                this.pushOngoing = true;
+                let promise;
+
                 if (this.isEnabled) {
-                this.detailNav.setRoot(page, params);
+                    promise = this.detailNav.setRoot(page, params);
                 } else {
                     this.loadDetailPage = {
                         component: page,
                         data: params
                     };
-                this.masterNav.push(page, params);
+                    promise = this.masterNav.push(page, params);
+                }
+                promise.finally(() =>  {
+                    this.pushOngoing = false;
+                });
             }
         }
     }