Warning fix.

[wxWidgets.git] / src / common / event.cpp

diff --git a/src/common/event.cpp b/src/common/event.cpp
index ec31583f0d0caaf600a64b0a9b1fa56db211866e..e0ea296ae23ed5b35c9f551fb9a15de0925335bb 100644 (file)
--- a/src/common/event.cpp
+++ b/src/common/event.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        event.cpp
+// Name:        src/common/event.cpp
 // Purpose:     Event classes
 // Author:      Julian Smart
 // Modified by:
@@ -25,7 +25,6 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/defs.h"
     #include "wx/app.h"
     #include "wx/list.h"
 
@@ -1023,6 +1022,8 @@ wxEvtHandler::~wxEvtHandler()
         delete m_dynamicEvents;
     };
 
+    if (m_pendingEvents)
+        m_pendingEvents->DeleteContents(true);
     delete m_pendingEvents;
 
 #if wxUSE_THREADS
@@ -1084,10 +1085,7 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event)
     wxENTER_CRIT_SECT( Lock() );
 
     if ( !m_pendingEvents )
-    {
       m_pendingEvents = new wxList;
-      m_pendingEvents->DeleteContents(true);
-    }
 
     m_pendingEvents->Append(eventCopy);
 
@@ -1104,7 +1102,7 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event)
 
     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
 
-    // 3) Inform the system that new pending events are somwehere,
+    // 3) Inform the system that new pending events are somewhere,
     //    and that these should be processed in idle time.
     wxWakeUpIdle();
 }
@@ -1129,15 +1127,19 @@ void wxEvtHandler::ProcessPendingEvents()
     {
         wxEvent *event = (wxEvent *)node->GetData();
 
+        // It's importan we remove event from list before processing it.
+        // Else a nested event loop, for example from a modal dialog, might
+        // process the same event again.
+        m_pendingEvents->Erase(node);
+
         wxLEAVE_CRIT_SECT( Lock() );
 
         ProcessEvent(*event);
+        delete event;
 
         wxENTER_CRIT_SECT( Lock() );
 
-        m_pendingEvents->Erase(node);
-
-        if ( !--n )
+        if ( --n == 0 )
             break;
     }
 
@@ -1342,6 +1344,10 @@ bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
 
+        // get next node before (maybe) calling the event handler as it could
+        // call Disconnect() invalidating the current node
+        node = node->GetNext();
+
         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
         {
             wxEvtHandler *handler =
@@ -1356,8 +1362,6 @@ bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
                 return true;
             }
         }
-
-        node = node->GetNext();
     }
 
     return false;