From 4459a5f60db483bc3e63587b1c911ca98f415ec7 Mon Sep 17 00:00:00 2001
From: and3md <and3md@gmail.com>
Date: Wed, 22 Mar 2017 19:31:28 +0100
Subject: [PATCH] Ability to safe destroy widget later by event.

---
 src/dlangui/core/events.d               | 14 ++++++++++++++
 src/dlangui/platforms/common/platform.d |  8 +++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/dlangui/core/events.d b/src/dlangui/core/events.d
index 3caa30de..f7c95a0b 100644
--- a/src/dlangui/core/events.d
+++ b/src/dlangui/core/events.d
@@ -1649,6 +1649,20 @@ class RunnableEvent : CustomEvent {
     }
 }
 
+/// save destroy event
+class SafeDestroyEvent : RunnableEvent {
+    Widget _widgetToDestroy;
+    this (Widget widgetToDestroy)
+    {
+        _widgetToDestroy = widgetToDestroy;
+        super(1,null, delegate void () {
+            if (_widgetToDestroy.parent) 
+                _widgetToDestroy.parent.removeChild(_widgetToDestroy);
+            destroy(_widgetToDestroy);
+        });
+    }
+}
+
 interface CustomEventTarget {
     /// post event to handle in UI thread (this method can be used from background thread)
     void postEvent(CustomEvent event);
diff --git a/src/dlangui/platforms/common/platform.d b/src/dlangui/platforms/common/platform.d
index 63629585..b41617a9 100644
--- a/src/dlangui/platforms/common/platform.d
+++ b/src/dlangui/platforms/common/platform.d
@@ -519,7 +519,13 @@ class Window : CustomEventTarget {
         destroy(_timerQueue);
         _eventList = null;
     }
-
+    /// safe destroy widget
+    void safeWidgetDestroy(Widget widgetToDestroy)
+    {
+        SafeDestroyEvent ev = new SafeDestroyEvent(widgetToDestroy);
+        postEvent(ev);
+    }
+    
     private void animate(Widget root, long interval) {
         if (root is null)
             return;