From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 21 Mar 2006 12:53:28 +0000 (+0000)
Subject: fix an infinite loop in HandleOnNavigationKey() when wxUSE_STL==1 and start_node... 
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/edc0a395c60f72a065d451778d64969739bf9534

fix an infinite loop in HandleOnNavigationKey() when wxUSE_STL==1 and start_node is NULL


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38239 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/common/containr.cpp b/src/common/containr.cpp
index b4b63b63af..55b6109a9b 100644
--- a/src/common/containr.cpp
+++ b/src/common/containr.cpp
@@ -302,7 +302,7 @@ void wxControlContainer::HandleOnNavigationKey( wxNavigationKeyEvent& event )
     }
 
     // where are we going?
-    bool forward = event.GetDirection();
+    const bool forward = event.GetDirection();
 
     // the node of the children list from which we should start looking for the
     // next acceptable child
@@ -319,11 +319,8 @@ void wxControlContainer::HandleOnNavigationKey( wxNavigationKeyEvent& event )
 
         // start from first or last depending on where we're going
         node = forward ? children.GetFirst() : children.GetLast();
-
-        // we want to cycle over all nodes
-        start_node = wxWindowList::compatibility_iterator();
     }
-    else
+    else // going up
     {
         // try to find the child which has the focus currently
 
@@ -349,10 +346,6 @@ void wxControlContainer::HandleOnNavigationKey( wxNavigationKeyEvent& event )
             // ok, we found the focus - now is it our child?
             start_node = children.Find( winFocus );
         }
-        else
-        {
-            start_node = wxWindowList::compatibility_iterator();
-        }
 
         if ( !start_node && m_winLastFocused )
         {
@@ -373,14 +366,18 @@ void wxControlContainer::HandleOnNavigationKey( wxNavigationKeyEvent& event )
     }
 
     // we want to cycle over all elements passing by NULL
-    while ( node != start_node )
+    for ( ;; )
     {
+        // don't go into infinite loop
+        if ( start_node && node == start_node )
+            break;
+
         // Have we come to the last or first item on the panel?
         if ( !node )
         {
             if ( !goingDown )
             {
-                // Check if our (may be grand) parent is another panel: if this
+                // Check if our (maybe grand) parent is another panel: if this
                 // is the case, they will know what to do with this navigation
                 // key and so give them the chance to process it instead of
                 // looping inside this panel (normally, the focus will go to