only call fsync() on disk files, otherwise we get an error for pipes under Unix

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

diff --git a/src/common/popupcmn.cpp b/src/common/popupcmn.cpp
index 5e6586bb3ccf48ec1c3504ce1afafc9fcd97acc7..e29d8d2619b49e72bfbc455017f3c01448be6b4a 100644 (file)
--- a/src/common/popupcmn.cpp
+++ b/src/common/popupcmn.cpp
@@ -67,7 +67,6 @@ class wxPopupWindowHandler : public wxEvtHandler
 {
 public:
     wxPopupWindowHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
-    ~wxPopupWindowHandler();
 
 protected:
     // event handlers
@@ -84,7 +83,6 @@ class wxPopupFocusHandler : public wxEvtHandler
 {
 public:
     wxPopupFocusHandler(wxPopupTransientWindow *popup) : m_popup(popup) {}
-    ~wxPopupFocusHandler();
 
 protected:
     void OnKillFocus(wxFocusEvent& event);
@@ -192,14 +190,21 @@ wxPopupTransientWindow::wxPopupTransientWindow(wxWindow *parent, int style)
 
 wxPopupTransientWindow::~wxPopupTransientWindow()
 {
-    PopHandlers();
+    if (m_handlerPopup && m_handlerPopup->GetNextHandler())
+        PopHandlers();
+        
+    wxASSERT(!m_handlerFocus || !m_handlerFocus->GetNextHandler());
+    wxASSERT(!m_handlerPopup || !m_handlerPopup->GetNextHandler());
+
+    delete m_handlerFocus;
+    delete m_handlerPopup;
 }
 
 void wxPopupTransientWindow::PopHandlers()
 {
     if ( m_child )
     {
-        if ( m_handlerPopup && !m_child->RemoveEventHandler(m_handlerPopup) )
+        if ( !m_child->RemoveEventHandler(m_handlerPopup) )
         {
             // something is very wrong and someone else probably deleted our
             // handler - so don't risk deleting it second time
@@ -212,29 +217,14 @@ void wxPopupTransientWindow::PopHandlers()
         m_child = NULL;
     }
 
-#ifdef __WXMSW__
     if ( m_focus )
     {
-        if ( m_handlerFocus && !m_focus->RemoveEventHandler(m_handlerFocus) )
+        if ( !m_focus->RemoveEventHandler(m_handlerFocus) )
         {
             // see above
             m_handlerFocus = NULL;
         }
     }
-#else
-    if ( m_handlerFocus && !RemoveEventHandler(m_handlerFocus) )
-    {
-        // see above
-        m_handlerFocus = NULL;
-    }
-#endif
-
-    // delete the handlers, they'll be created as necessary in Popup()
-    delete m_handlerPopup;
-    m_handlerPopup = NULL;
-    delete m_handlerFocus;
-    m_handlerFocus = NULL;
-
     m_focus = NULL;
 }
 
@@ -252,12 +242,12 @@ 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"));
+    // There is is a problem if these are still in use
+    wxASSERT(!m_handlerFocus || !m_handlerFocus->GetNextHandler());
+    wxASSERT(!m_handlerPopup || !m_handlerPopup->GetNextHandler());
 
-    delete m_handlerPopup;
-    m_handlerPopup = new wxPopupWindowHandler(this);
+    if (!m_handlerPopup)
+        m_handlerPopup = new wxPopupWindowHandler(this);
 
     m_child->PushEventHandler(m_handlerPopup);
 
@@ -269,29 +259,19 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
     // subclass the window which has the focus, and not winFocus passed in or
     // otherwise everything else breaks down
     m_focus = FindFocus();
+#elif defined(__WXGTK__)
+    // GTK+ catches the activate events from the popup
+    // window, not the focus events from the child window
+    m_focus = this;
+#endif
+
     if ( m_focus )
     {
-        delete m_handlerFocus;
-        m_handlerFocus = new wxPopupFocusHandler(this);
+        if (!m_handlerFocus)
+            m_handlerFocus = new wxPopupFocusHandler(this);
 
         m_focus->PushEventHandler(m_handlerFocus);
     }
-#else
-    // GTK+ catches the activate events from the popup
-    // window, not the focus events from the child window
-    delete m_handlerFocus;
-    m_handlerFocus = new wxPopupFocusHandler(this);
-    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 )
@@ -388,14 +368,6 @@ 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)
 {
@@ -482,11 +454,6 @@ 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)
 {
@@ -499,7 +466,7 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
 
     wxPoint pos = event.GetPosition();
 
-    // scrollbar on which the click occured
+    // scrollbar on which the click occurred
     wxWindow *sbar = NULL;
 
     wxWindow *win = (wxWindow *)event.GetEventObject();
@@ -575,11 +542,6 @@ 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)
 {