fix(frame): root tabview with modal frame when suspend/resume app (#5408)

tests/app/testRunner.ts

@@ -226,7 +226,7 @@ import * as cssAnimationTests from "./ui/animation/css-animation-tests";
 allTests["CSS-ANIMATION"] = cssAnimationTests;
 
 import * as transitionTests from "./navigation/transition-tests";
-allTests["TANSITIONS"] = transitionTests;
+allTests["TRANSITIONS"] = transitionTests;
 import * as searchBarTests from "./ui/search-bar/search-bar-tests";
 allTests["SEARCH-BAR"] = searchBarTests;
 

tests/app/ui/page/page-tests-common.ts

@@ -19,7 +19,7 @@ import * as helper from "../helper";
 import { GridLayout } from "tns-core-modules/ui/layouts/grid-layout";
 import { StackLayout } from "tns-core-modules/ui/layouts/stack-layout";
 import { View, PercentLength, Observable, unsetValue, EventData, isIOS } from "tns-core-modules/ui/core/view";
-import { Frame } from "tns-core-modules/ui/frame";
+import { Frame, stack } from "tns-core-modules/ui/frame";
 import { Label } from "tns-core-modules/ui/label";
 import { Color } from "tns-core-modules/color";
 
@@ -548,6 +548,7 @@ export function test_WhenModalPageShownHostPageNavigationEventsShouldNotBeRaised
     let ready = false;
 
     const modalCloseCallback = function (returnValue: any) {
+        TKUnit.assertEqual(stack().length, 1, "Single frame should be instantiated at this point!");
         ready = true;
     }
 
@@ -567,6 +568,10 @@ export function test_WhenModalPageShownHostPageNavigationEventsShouldNotBeRaised
         hostNavigatedFromCount++;
     };
 
+    const modalPageShownModallyEventHandler = function() {
+        TKUnit.assertEqual(stack().length, 1, "Single frame should be instantiated at this point!");
+    }
+
     const hostNavigatedToEventHandler2 = function(args: NavigatedData) {
         const page = <Page>args.object;
         page.off(Page.navigatedToEvent, hostNavigatedToEventHandler2);
@@ -576,7 +581,11 @@ export function test_WhenModalPageShownHostPageNavigationEventsShouldNotBeRaised
             moduleName: basePath + "modal-page"
         };
 
+        TKUnit.assertEqual(stack().length, 1, "Single frame should be instantiated at this point!");
+
         const modalPage = createViewFromEntry(entry) as Page;
+        modalPage.on(Frame.shownModallyEvent, modalPageShownModallyEventHandler);
+
         page.showModal(modalPage, {}, modalCloseCallback, false, false);
     }
     
@@ -694,6 +703,7 @@ export function test_WhenModalFrameShownModalEventsRaisedOnRootModalFrame() {
     let ready = false;
 
     const modalCloseCallback = function (returnValue: any) {
+        TKUnit.assertEqual(stack().length, 1, "Single frame should be instantiated at this point!");
         ready = true;
     }
 
@@ -703,6 +713,7 @@ export function test_WhenModalFrameShownModalEventsRaisedOnRootModalFrame() {
 
     const modalFrameShownModallyEventHandler = function(args: ShownModallyData) {
         shownModallyCount++;
+        TKUnit.assertEqual(stack().length, 2, "Host and modal frame should be instantiated at this point!");
 
         args.closeCallback("return value");
     }
@@ -720,11 +731,15 @@ export function test_WhenModalFrameShownModalEventsRaisedOnRootModalFrame() {
 
         const modalPage = createViewFromEntry(entry) as Page;
 
+        TKUnit.assertEqual(stack().length, 1, "Single frame should be instantiated at this point!");
+
         modalFrame = new Frame();
         modalFrame.on(Frame.showingModallyEvent, modalFrameShowingModallyEventHandler);
         modalFrame.on(Frame.shownModallyEvent, modalFrameShownModallyEventHandler);
         modalFrame.navigate(() => modalPage);
 
+        TKUnit.assertEqual(stack().length, 2, "Host and modal frame should be instantiated at this point!");
+
         page.showModal(modalFrame, {}, modalCloseCallback, false, false);
     }
     

tns-core-modules/ui/core/view-base/view-base.d.ts

@@ -263,6 +263,10 @@ export abstract class ViewBase extends Observable {
      */
     public _removeViewCore(view: ViewBase): void;
     public _parentChanged(oldParent: ViewBase): void;
+    /**
+     * Method is intended to be overridden by inheritors and used as "protected"
+     */
+    public _dialogClosed(): void;
 
     _domId: number;
 

tns-core-modules/ui/core/view-base/view-base.ts

@@ -956,6 +956,10 @@ export abstract class ViewBase extends Observable implements ViewBaseDefinition
             parent.closeModal();
         }
     }
+
+    public _dialogClosed(): void {
+        return;
+    }
 }
 
 ViewBase.prototype.isCollapsed = false;

tns-core-modules/ui/core/view/view-common.ts

@@ -251,10 +251,12 @@ export abstract class ViewCommon extends ViewBase implements ViewDefinition {
                 const modalIndex = _rootModalViews.indexOf(that);
                 _rootModalViews.splice(modalIndex);
                 that._hideNativeModalView(parent);
-                that._modalParent = null
+                that._modalParent = null;
                 that._modalContext = null;
                 that._closeModalCallback = null;
+                that._dialogClosed();
                 parent._modal = null;
+                
                 if (typeof closeCallback === "function") {
                     closeCallback.apply(undefined, arguments);
                 }

tns-core-modules/ui/frame/frame-common.ts

@@ -58,18 +58,10 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
     @profile
     public onLoaded() {
         super.onLoaded();
-
+        
-        this._pushInFrameStack();
         this._processNextNavigationEntry();
     }
 
-    @profile
-    public onUnloaded() {
-        super.onUnloaded();
-
-        this._popFromFrameStack();
-    }
-
     public canGoBack(): boolean {
         let backstack = this._backStack.length;
         let previousForwardNotInBackstack = false;
@@ -192,6 +184,8 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
         //     app.on(app.orientationChangedEvent, (data) => this._onOrientationChanged());
         // }
 
+        this._pushInFrameStack();
+
         const backstackEntry: BackstackEntry = {
             entry: entry,
             resolvedPage: page,
@@ -430,6 +424,10 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
         this._isInFrameStack = false;
     }
 
+    public _dialogClosed(): void {
+        this._popFromFrameStack();
+    }
+
     get _childrenCount(): number {
         if (this.currentPage) {
             return 1;

tns-core-modules/ui/frame/frame.android.ts

@@ -243,7 +243,9 @@ export class Frame extends FrameBase {
         if (this.canGoBack()) {
             this.goBack();
             return true;
-        } else if (!this.navigationQueueIsEmpty()) {
+        }
+        
+        if (!this.navigationQueueIsEmpty()) {
             const manager = this._getFragmentManager();
             if (manager) {
                 manager.executePendingTransactions();