From 4028cf48813ef03833dd758c26951155889f973f Mon Sep 17 00:00:00 2001
From: Vladimir Enchev <vladimir.enchev@telerik.com>
Date: Thu, 12 Jun 2014 10:35:51 +0300
Subject: [PATCH] dialog close callback implement for Dialog class

---
 ui/dialogs/dialogs.android.ts |  6 ++++--
 ui/dialogs/dialogs.d.ts       |  2 +-
 ui/dialogs/dialogs.ios.ts     | 14 +++++++++++++-
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/ui/dialogs/dialogs.android.ts b/ui/dialogs/dialogs.android.ts
index be9a61db5..aa6c4bd88 100644
--- a/ui/dialogs/dialogs.android.ts
+++ b/ui/dialogs/dialogs.android.ts
@@ -161,10 +161,12 @@ export class Dialog {
     private _android: android.app.AlertDialog.Builder;
     //private _view: view.View;
 
-    constructor(message: string, options?: dialogs.DialogButtonsOptions) {
+    constructor(message: string, callback?: (result: boolean) => {}, options?: dialogs.DialogButtonsOptions) {
         this._android = createAlertDialog(message, options);
         addButtonsToAlertDialog(this.android, options, function (r) {
-
+            if (callback) {
+                callback(r);
+            }
         });
     }
 
diff --git a/ui/dialogs/dialogs.d.ts b/ui/dialogs/dialogs.d.ts
index 5607ff0d7..a497335b5 100644
--- a/ui/dialogs/dialogs.d.ts
+++ b/ui/dialogs/dialogs.d.ts
@@ -117,7 +117,7 @@
     }
 
     export class Dialog {
-        constructor(message: string, options?: DialogButtonsOptions);
+        constructor(message: string, callback?: (result: boolean) => {}, options?: DialogButtonsOptions);
         /**
         * Shows the dialog.
         */
diff --git a/ui/dialogs/dialogs.ios.ts b/ui/dialogs/dialogs.ios.ts
index 227f18443..477728820 100644
--- a/ui/dialogs/dialogs.ios.ts
+++ b/ui/dialogs/dialogs.ios.ts
@@ -172,9 +172,21 @@ export class Dialog {
     //private _view: view.View;
     //private _nativeView: UIKit.UIView;
 
-    constructor(message: string, options?: dialogs.DialogButtonsOptions) {
+    constructor(message: string, callback?: (result: boolean) => {}, options?: dialogs.DialogButtonsOptions) {
         this._ios = createUIAlertView(message, options);
         addButtonsToAlertDialog(this._ios, options);
+
+        // Assign first to local variable, otherwise it will be garbage collected since delegate is weak reference.
+        var delegate = createDelegate(function (view, index) {
+            if (callback) {
+                callback(index === 2 ? undefined : index === 0);
+            }
+            // Remove the local variable for the delegate.
+            delegate = undefined;
+        });
+
+        this._ios.delegate = delegate;
+
     }
 
     get ios(): UIKit.UIAlertView {