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fix(NavController): setView race condition

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This commit is contained in:
Adam Bradley
2015-10-09 17:02:18 -05:00
parent 085ee958c4
commit 627080b1e2
2 changed files with 16 additions and 10 deletions
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7
ionic/components/nav/nav-controller.ts
View File

@ -186,6 +186,8 @@ export class NavController extends Ion {
// create a new ViewController
let enteringView = new ViewController(this, componentType, params);
enteringView.shouldDestroy = false;
enteringView.shouldCache = false;
// add the view to the stack
this._add(enteringView);
@ -453,6 +455,11 @@ export class NavController extends Ion {
// wait for the new view to complete setup
enteringView.stage(() => {
if (enteringView.shouldDestroy) {
// already marked as a view that will be destroyed, don't continue
return callback();
}
this._zone.runOutsideAngular(() => {
enteringView.shouldDestroy = false;

15
ionic/components/nav/view-controller.ts
View File

@ -31,7 +31,7 @@ export class ViewController {
stage(done) {
let navCtrl = this.navCtrl;
if (this.instance || !navCtrl) {
if (this.instance || !navCtrl || this.shouldDestroy) {
// already compiled this view
return done();
}
@ -39,6 +39,8 @@ export class ViewController {
// compile the component and create a ProtoViewRef
navCtrl.compileView(this.componentType).then(hostProtoViewRef => {
if (this.shouldDestroy) return done();
// get the pane the NavController wants to use
// the pane is where all this content will be placed into
navCtrl.loadContainer(this.componentType, hostProtoViewRef, this, () => {
@ -96,13 +98,6 @@ export class ViewController {
}
this.didUnload();
// just to help prevent any possible memory leaks
for (let name in this) {
if (this.hasOwnProperty(name)) {
this[name] = null;
}
}
}
/**
@ -217,15 +212,19 @@ export class ViewController {
* recommended method to use when a view becomes active.
*/
loaded() {
if (!this.shouldDestroy) {
this.instance && this.instance.onPageLoaded && this.instance.onPageLoaded();
}
}
/**
* The view is about to enter and become the active view.
*/
willEnter() {
if (!this.shouldDestroy) {
this.instance && this.instance.onPageWillEnter && this.instance.onPageWillEnter();
}
}
/**
* The view has fully entered and is now the active view. This