fix(nav): portal nav should always animate

Closes #6059

ionic/components/nav/nav-controller.ts

@@ -142,6 +142,11 @@ export class NavController extends Ion {
    */
   config: Config;
 
+  /**
+   * @private
+   */
+  isPortal: boolean = false;
+
   constructor(
     parent: any,
     protected _app: IonicApp,
@@ -425,6 +430,10 @@ export class NavController extends Ion {
       opts = {};
     }
 
+    if (enteringView.usePortal && this._portal) {
+      return this._portal.present(enteringView, opts);
+    }
+
     enteringView.setNav(rootNav);
 
     opts.keyboardClose = false;
@@ -440,11 +449,6 @@ export class NavController extends Ion {
       animation: enteringView.getTransitionName('back')
     });
 
-    if (enteringView.usePortal && this._portal) {
-      this._portal.present(enteringView);
-      return;
-    }
-
     // start the transition
     return rootNav._insertViews(-1, [enteringView], opts);
   }
@@ -740,7 +744,7 @@ export class NavController extends Ion {
       // get the view thats ready to enter
       let enteringView = this.getByState(STATE_INIT_ENTER);
 
-      if (!enteringView && this._portal) {
+      if (!enteringView && !this.isPortal) {
         // oh nos! no entering view to go to!
         // if there is no previous view that would enter in this nav stack
         // and the option is set to climb up the nav parent looking
@@ -912,9 +916,7 @@ export class NavController extends Ion {
       opts = {};
     }
 
-    if (this.config.get('animate') === false || (this._views.length === 1 && !this._init)) {
-      opts.animate = false;
-    }
+    this._setAnimate(opts);
 
     if (!leavingView) {
       // if no leaving view then create a bogus one
@@ -943,6 +945,12 @@ export class NavController extends Ion {
     });
   }
 
+  private _setAnimate(opts: NavOptions) {
+    if ((this._views.length === 1 && !this._init && !this.isPortal) || this.config.get('animate') === false) {
+      opts.animate = false;
+    }
+  }
+
   /**
    * @private
    */
@@ -1097,9 +1105,7 @@ export class NavController extends Ion {
       this._trans && this._trans.destroy();
       this._trans = transAnimation;
 
-      // Portal elements should always animate
-      // so ignore this if it is a portal
-      if (opts.animate === false && this._portal) {
+      if (opts.animate === false) {
         // force it to not animate the elements, just apply the "to" styles
         transAnimation.duration(0);
       }
@@ -1253,7 +1259,7 @@ export class NavController extends Ion {
       this._app && this._app.setEnabled(true);
       this.setTransitioning(false);
 
-      if (direction !== null && hasCompleted && this._portal) {
+      if (direction !== null && hasCompleted && !this.isPortal) {
         // notify router of the state change if a direction was provided
         // multiple routers can exist and each should be notified
         this.routers.forEach(router => {
@@ -1662,7 +1668,7 @@ export class NavController extends Ion {
 
         } else {
           // this is the initial view
-          enteringView.setZIndex(this._portal ? INIT_ZINDEX : PORTAL_ZINDEX, this._renderer);
+          enteringView.setZIndex(this.isPortal ? PORTAL_ZINDEX : INIT_ZINDEX, this._renderer);
         }
 
       } else if (direction === 'back') {

ionic/components/nav/nav-portal.ts

@@ -26,5 +26,6 @@ export class Portal extends NavController {
     renderer: Renderer
   ) {
     super(hostNavCtrl, app, config, keyboard, elementRef, null, compiler, viewManager, zone, renderer);
+    this.isPortal = true;
   }
 }

ionic/components/nav/test/nav-controller.spec.ts

@@ -641,7 +641,7 @@ export function run() {
       it('should set zIndex 9999 on first entering portal view', () => {
         let enteringView = new ViewController();
         enteringView.setPageRef({});
-        nav._portal = null;
+        nav.isPortal = true;
         nav._setZIndex(enteringView, null, 'forward');
         expect(enteringView.zIndex).toEqual(9999);
       });
@@ -670,6 +670,51 @@ export function run() {
 
     });
 
+    describe('_setAnimate', () => {
+
+      it('should be unchanged when the nav is a portal', () => {
+        nav._views = [new ViewController()];
+        nav._init = false;
+        nav.isPortal = true;
+        let opts: NavOptions = {};
+        nav._setAnimate(opts);
+        expect(opts.animate).toBeUndefined();
+      });
+
+      it('should not animate when theres only 1 view, and nav hasnt initialized yet', () => {
+        nav._views = [new ViewController()];
+        nav._init = false;
+        let opts: NavOptions = {};
+        nav._setAnimate(opts);
+        expect(opts.animate).toEqual(false);
+      });
+
+      it('should be unchanged when theres only 1 view, and nav has already initialized', () => {
+        nav._views = [new ViewController()];
+        nav._init = true;
+        let opts: NavOptions = {};
+        nav._setAnimate(opts);
+        expect(opts.animate).toBeUndefined();
+      });
+
+      it('should not animate with config animate = false, and has initialized', () => {
+        config.set('animate', false);
+        nav._init = true;
+        let opts: NavOptions = {};
+        nav._setAnimate(opts);
+        expect(opts.animate).toEqual(false);
+      });
+
+      it('should not animate with config animate = false, and has not initialized', () => {
+        config.set('animate', false);
+        nav._init = false;
+        let opts: NavOptions = {};
+        nav._setAnimate(opts);
+        expect(opts.animate).toEqual(false);
+      });
+
+    });
+
     describe('_afterTrans', () => {
 
       it('should call didEnter/didLeave', () => {