feat(viewcontroller): adds onWillDismiss callback (0 delay)

fixed ionic-team#6702
manucorporat · Jun 26, 2016 · fbb5a22 · fbb5a22
1 parent d0b1930
commit fbb5a22
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Showing 2 changed files with 26 additions and 11 deletions.
diff --git a/src/components/modal/test/basic/index.ts b/src/components/modal/test/basic/index.ts
@@ -36,8 +36,13 @@ class E2EPage {
     let modal = Modal.create(ModalPassData, { userId: 8675309 });
     this.nav.present(modal);
 
+    modal.onWillDismiss((data: any) => {
+      console.log('WILL DISMISS with data', data);
+      console.timeEnd('modal');
+    });
     modal.onDismiss((data: any) => {
       console.log('modal data', data);
+      console.timeEnd('modal');
     });
   }
 
@@ -155,27 +160,28 @@ class ModalPassData {
   }
 
   submit() {
+    console.time('modal');
     this.viewCtrl.dismiss(this.data);
   }
 
   ionViewLoaded(){
-    console.log("ModalPassData ionViewLoaded fired");
+    console.log('ModalPassData ionViewLoaded fired');
   }
 
   ionViewWillEnter(){
-    console.log("ModalPassData ionViewWillEnter fired");
+    console.log('ModalPassData ionViewWillEnter fired');
   }
 
   ionViewDidEnter(){
-    console.log("ModalPassData ionViewDidEnter fired");
+    console.log('ModalPassData ionViewDidEnter fired');
   }
 
   ionViewWillLeave(){
-    console.log("ModalPassData ionViewWillLeave fired");
+    console.log('ModalPassData ionViewWillLeave fired');
   }
 
   ionViewDidLeave(){
-    console.log("ModalPassData ionViewDidLeave fired");
+    console.log('ModalPassData ionViewDidLeave fired');
   }
 }
 
@@ -367,15 +373,15 @@ class ModalFirstPage {
   }
 
   ionViewLoaded(){
-    console.log("ModalFirstPage ionViewLoaded fired");
+    console.log('ModalFirstPage ionViewLoaded fired');
   }
 
   ionViewWillEnter(){
-    console.log("ModalFirstPage ionViewWillEnter fired");
+    console.log('ModalFirstPage ionViewWillEnter fired');
   }
 
   ionViewDidEnter(){
-    console.log("ModalFirstPage ionViewDidEnter fired");
+    console.log('ModalFirstPage ionViewDidEnter fired');
   }
 
   openActionSheet() {
@@ -448,15 +454,15 @@ class ModalSecondPage {
   }
 
   ionViewLoaded(){
-    console.log("ModalSecondPage ionViewLoaded");
+    console.log('ModalSecondPage ionViewLoaded');
   }
 
   ionViewWillEnter(){
-    console.log("ModalSecondPage ionViewWillEnter");
+    console.log('ModalSecondPage ionViewWillEnter');
   }
 
   ionViewDidEnter(){
-    console.log("ModalSecondPage ionViewDidEnter");
+    console.log('ModalSecondPage ionViewDidEnter');
   }
 }
 

diff --git a/src/components/nav/view-controller.ts b/src/components/nav/view-controller.ts
@@ -36,6 +36,7 @@ export class ViewController {
   private _loaded: boolean = false;
   private _nbDir: Navbar;
   private _onDismiss: Function = null;
+  private _onWillDismiss: Function = null;
   private _pgRef: ElementRef;
   private _cd: ChangeDetectorRef;
   protected _nav: NavController;
@@ -127,11 +128,19 @@ export class ViewController {
     this._onDismiss = callback;
   }
 
+  /**
+   * @private
+   */
+  onWillDismiss(callback: Function) {
+    this._onWillDismiss = callback;
+  }
+
   /**
    * @private
    */
   dismiss(data?: any, role?: any, navOptions: NavOptions = {}) {
     let options = merge({}, this._leavingOpts, navOptions);
+    this._onWillDismiss && this._onWillDismiss(data, role);
     return this._nav.remove(this._nav.indexOf(this), 1, options).then(() => {
       this._onDismiss && this._onDismiss(data, role);
       return data;