Applied patch [ 1183157 ] Compilation with GCC 4.0

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

diff --git a/src/common/popupcmn.cpp b/src/common/popupcmn.cpp
index 47099f03ba83a6ad5c332fb783e65abccfbca095..5e6586bb3ccf48ec1c3504ce1afafc9fcd97acc7 100644 (file)
--- a/src/common/popupcmn.cpp
+++ b/src/common/popupcmn.cpp
@@ -66,7 +66,8 @@ IMPLEMENT_DYNAMIC_CLASS(wxPopupTransientWindow, wxPopupWindow)
 class wxPopupWindowHandler : public wxEvtHandler
 {
 public:
-    wxPopupWindowHandler(wxPopupTransientWindow *popup) { m_popup = popup; }
+    wxPopupWindowHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
+    ~wxPopupWindowHandler();
 
 protected:
     // event handlers
@@ -82,10 +83,8 @@ private:
 class wxPopupFocusHandler : public wxEvtHandler
 {
 public:
-    wxPopupFocusHandler(wxPopupTransientWindow *popup)
-    {
-        m_popup = popup;
-    }
+    wxPopupFocusHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
+    ~wxPopupFocusHandler();
 
 protected:
     void OnKillFocus(wxFocusEvent& event);
@@ -111,6 +110,12 @@ BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
     EVT_KEY_DOWN(wxPopupFocusHandler::OnKeyDown)
 END_EVENT_TABLE()
 
+BEGIN_EVENT_TABLE(wxPopupTransientWindow, wxPopupWindow)
+#ifdef __WXMSW__
+    EVT_IDLE(wxPopupTransientWindow::OnIdle)
+#endif
+END_EVENT_TABLE()
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -200,7 +205,10 @@ void wxPopupTransientWindow::PopHandlers()
             // handler - so don't risk deleting it second time
             m_handlerPopup = NULL;
         }
-
+        if (m_child->HasCapture())
+        {       
+            m_child->ReleaseMouse();
+        }
         m_child = NULL;
     }
 
@@ -244,6 +252,10 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
 
     Show();
 
+    // There is is a problem if these are still valid
+    wxASSERT_MSG(!m_handlerPopup, wxT("Popup handler not deleted"));
+    wxASSERT_MSG(!m_handlerFocus, wxT("Focus handler not deleted"));
+
     delete m_handlerPopup;
     m_handlerPopup = new wxPopupWindowHandler(this);
 
@@ -272,6 +284,14 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
     PushEventHandler(m_handlerFocus);
 #endif // __WXMSW__
 
+    // catch destroy events, if you close a program with a popup shown in MSW
+    // you get a segfault if m_child or m_focus are deleted before this is
+    m_child->Connect(wxEVT_DESTROY,
+                     wxWindowDestroyEventHandler(wxPopupTransientWindow::OnDestroy),
+                     NULL, this);
+    m_focus->Connect(wxEVT_DESTROY,
+                     wxWindowDestroyEventHandler(wxPopupTransientWindow::OnDestroy),
+                     NULL, this);
 }
 
 bool wxPopupTransientWindow::Show( bool show )
@@ -292,6 +312,13 @@ bool wxPopupTransientWindow::Show( bool show )
     }
 #endif
 
+#ifdef __WXMSW__
+    if (!show && m_child && m_child->HasCapture())
+    {       
+        m_child->ReleaseMouse();
+    }
+#endif
+    
     bool ret = wxPopupWindow::Show( show );
 
 #ifdef __WXGTK__
@@ -326,20 +353,27 @@ bool wxPopupTransientWindow::Show( bool show )
             CurrentTime );
     }
 #endif
+
+#ifdef __WXMSW__
+    if (show && m_child)
+    {
+        // Assume that the mouse is outside the popup to begin with
+        m_child->CaptureMouse();
+    }
+#endif
+
     return ret;
 }
 
 void wxPopupTransientWindow::Dismiss()
 {
-    PopHandlers();
-
     Hide();
+    PopHandlers();
 }
 
 void wxPopupTransientWindow::DismissAndNotify()
 {
     Dismiss();
-
     OnDismiss();
 }
 
@@ -354,6 +388,43 @@ bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
     return false;
 }
 
+void wxPopupTransientWindow::OnDestroy(wxWindowDestroyEvent& event)
+{
+    if (event.GetEventObject() == m_child)
+        m_child = NULL;
+    if (event.GetEventObject() == m_focus)
+        m_focus = NULL;
+}
+
+#ifdef __WXMSW__
+void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
+{
+    event.Skip();
+
+    if (IsShown() && m_child)
+    {
+        wxPoint pos = ScreenToClient(wxGetMousePosition());
+        wxRect rect(GetSize());
+
+        if ( rect.Inside(pos) )
+        {
+            if ( m_child->HasCapture() )
+            {
+                m_child->ReleaseMouse();
+            }
+        }
+        else
+        {
+            if ( !m_child->HasCapture() )
+            {
+                m_child->CaptureMouse();
+            }
+        }                
+    }
+}
+#endif
+
+
 #if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 
 // ----------------------------------------------------------------------------
@@ -411,6 +482,11 @@ void wxPopupComboWindow::OnKeyDown(wxKeyEvent& event)
 // ----------------------------------------------------------------------------
 // wxPopupWindowHandler
 // ----------------------------------------------------------------------------
+wxPopupWindowHandler::~wxPopupWindowHandler()
+{
+    if (m_popup && (m_popup->m_handlerPopup == this))
+        m_popup->m_handlerPopup = NULL;
+}
 
 void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
 {
@@ -499,6 +575,11 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
 // ----------------------------------------------------------------------------
 // wxPopupFocusHandler
 // ----------------------------------------------------------------------------
+wxPopupFocusHandler::~wxPopupFocusHandler()
+{
+    if (m_popup && (m_popup->m_handlerFocus == this))
+        m_popup->m_handlerFocus = NULL;
+}
 
 void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
 {