Added reparenting helper classes to help apps to grab the windows

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

diff --git a/src/common/popupcmn.cpp b/src/common/popupcmn.cpp
index ae9ab6392e7458f9c5786b0e34c95ba3dd65d93a..b4ec9cf52622c5166900734e5dc1afb1cbc5f9d2 100644 (file)
--- a/src/common/popupcmn.cpp
+++ b/src/common/popupcmn.cpp
@@ -34,12 +34,25 @@
 
 #ifndef WX_PRECOMP
     #include "wx/combobox.h"        // wxComboControl
 
 #ifndef WX_PRECOMP
     #include "wx/combobox.h"        // wxComboControl

+    #include "wx/log.h"

 #endif //WX_PRECOMP
 
 #ifdef __WXUNIVERSAL__
     #include "wx/univ/renderer.h"
 #endif // __WXUNIVERSAL__
 
 #endif //WX_PRECOMP
 
 #ifdef __WXUNIVERSAL__
     #include "wx/univ/renderer.h"
 #endif // __WXUNIVERSAL__
 

+// there is no src/{msw,mgl}/popupwin.cpp to put this in, so we do it here - BTW we
+// probably could do it for all ports here just as well
+#if defined(__WXMSW__) || defined(__WXMGL__)
+    IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
+#endif // __WXMSW__
+
+IMPLEMENT_DYNAMIC_CLASS(wxPopupTransientWindow, wxPopupWindow)
+
+#if wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
+    IMPLEMENT_DYNAMIC_CLASS(wxPopupComboWindow, wxPopupTransientWindow)
+#endif
+

 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------


@@ -64,15 +77,30 @@ private:
 class wxPopupFocusHandler : public wxEvtHandler
 {
 public:
 class wxPopupFocusHandler : public wxEvtHandler
 {
 public:

-    wxPopupFocusHandler(wxPopupTransientWindow *popup) { m_popup = popup; }
+    wxPopupFocusHandler(wxPopupTransientWindow *popup)
+    {
+        m_popup = popup;
+
+#ifdef __WXGTK__
+        // ignore the next few OnKillFocus() calls
+        m_creationTime = time(NULL);
+#endif // __WXGTK__
+    }

 
 protected:
     // event handlers
     void OnKillFocus(wxFocusEvent& event);
 
 protected:
     // event handlers
     void OnKillFocus(wxFocusEvent& event);

+    void OnKeyDown(wxKeyEvent& event);

 
 private:
     wxPopupTransientWindow *m_popup;
 
 
 private:
     wxPopupTransientWindow *m_popup;
 

+    // hack around wxGTK bug: we always get several kill focus events
+    // immediately after creation!
+#ifdef __WXGTK__
+    time_t m_creationTime;
+#endif // __WXGTK__
+

     DECLARE_EVENT_TABLE()
 };
 
     DECLARE_EVENT_TABLE()
 };
 


@@ -86,6 +114,7 @@ END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
     EVT_KILL_FOCUS(wxPopupFocusHandler::OnKillFocus)
 
 BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
     EVT_KILL_FOCUS(wxPopupFocusHandler::OnKillFocus)

+    EVT_KEY_DOWN(wxPopupFocusHandler::OnKeyDown)

 END_EVENT_TABLE()
 
 // ============================================================================
 END_EVENT_TABLE()
 
 // ============================================================================


@@ -96,6 +125,11 @@ END_EVENT_TABLE()
 // wxPopupWindowBase
 // ----------------------------------------------------------------------------
 
 // wxPopupWindowBase
 // ----------------------------------------------------------------------------
 

+wxPopupWindowBase::~wxPopupWindowBase()
+{
+    // this destructor is required for Darwin
+}
+

 bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
 {
     return TRUE;
 bool wxPopupWindowBase::Create(wxWindow* WXUNUSED(parent), int WXUNUSED(flags))
 {
     return TRUE;


@@ -145,32 +179,49 @@ void wxPopupTransientWindow::Init()
 {
     m_child =
     m_focus = (wxWindow *)NULL;
 {
     m_child =
     m_focus = (wxWindow *)NULL;

+
+    m_handlerFocus = NULL;
+    m_handlerPopup = NULL;

 }
 
 }
 

-wxPopupTransientWindow::wxPopupTransientWindow(wxWindow *parent)
+wxPopupTransientWindow::wxPopupTransientWindow(wxWindow *parent, int style)

 {
     Init();
 
 {
     Init();
 

-    (void)Create(parent);
+    (void)Create(parent, style);

 }
 
 wxPopupTransientWindow::~wxPopupTransientWindow()
 {
     PopHandlers();
 }
 
 wxPopupTransientWindow::~wxPopupTransientWindow()
 {
     PopHandlers();

+
+    delete m_handlerFocus;
+    delete m_handlerPopup;

 }
 
 void wxPopupTransientWindow::PopHandlers()
 {
     if ( m_child )
     {
 }
 
 void wxPopupTransientWindow::PopHandlers()
 {
     if ( m_child )
     {

-        m_child->PopEventHandler(TRUE /* delete it */);
+        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
+            m_handlerPopup = NULL;
+        }
+

         m_child->ReleaseMouse();
         m_child = NULL;
     }
 
     if ( m_focus )
     {
         m_child->ReleaseMouse();
         m_child = NULL;
     }
 
     if ( m_focus )
     {

-        m_focus->PopEventHandler(TRUE /* delete it */);
+        if ( !m_focus->RemoveEventHandler(m_handlerFocus) )
+        {
+            // see above
+            m_handlerFocus = NULL;
+        }
+

         m_focus = NULL;
     }
 }
         m_focus = NULL;
     }
 }


@@ -187,21 +238,32 @@ void wxPopupTransientWindow::Popup(wxWindow *winFocus)
         m_child = this;
     }
 
         m_child = this;
     }
 

-    // we can't capture mouse before the window is shown in wxGTL
-#ifdef __WXGTK__
+    // we can't capture mouse before the window is shown in wxGTK, so do it
+    // first

     Show();
     Show();

-#endif

 
 

-    m_child->CaptureMouse();
-    m_child->PushEventHandler(new wxPopupWindowHandler(this));
+    delete m_handlerPopup;
+    m_handlerPopup = new wxPopupWindowHandler(this);

 
 

-#ifndef __WXGTK__
-    Show();
-#endif
+    m_child->CaptureMouse();
+    m_child->PushEventHandler(m_handlerPopup);

 
     m_focus = winFocus ? winFocus : this;
 
     m_focus = winFocus ? winFocus : this;

-    m_focus->PushEventHandler(new wxPopupFocusHandler(this));

     m_focus->SetFocus();
     m_focus->SetFocus();

+
+#ifdef __WXMSW__
+    // MSW doesn't allow to set focus to the popup window, but we need to
+    // subclass the window which has the focus, and not winFocus passed in or
+    // otherwise everything else breaks down
+    m_focus = FindFocus();
+    if ( m_focus )
+    {
+        delete m_handlerFocus;
+        m_handlerFocus = new wxPopupFocusHandler(this);
+
+        m_focus->PushEventHandler(m_handlerFocus);
+    }
+#endif // __WXMSW__

 }
 
 void wxPopupTransientWindow::Dismiss()
 }
 
 void wxPopupTransientWindow::Dismiss()


@@ -286,13 +348,14 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
     {
         return;
     }
     {
         return;
     }

-
+    

     wxPoint pos = event.GetPosition();
 
     // scrollbar on which the click occured
     wxWindow *sbar = NULL;
 
     wxWindow *win = (wxWindow *)event.GetEventObject();
     wxPoint pos = event.GetPosition();
 
     // scrollbar on which the click occured
     wxWindow *sbar = NULL;
 
     wxWindow *win = (wxWindow *)event.GetEventObject();

+    

     switch ( win->HitTest(pos.x, pos.y) )
     {
         case wxHT_WINDOW_OUTSIDE:
     switch ( win->HitTest(pos.x, pos.y) )
     {
         case wxHT_WINDOW_OUTSIDE:


@@ -345,12 +408,38 @@ void wxPopupWindowHandler::OnLeftDown(wxMouseEvent& event)
 
 void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
 {
 
 void wxPopupFocusHandler::OnKillFocus(wxFocusEvent& event)
 {

-    // when we lose focus we always disappear
+#ifdef __WXGTK__
+    // ignore the next OnKillFocus() call
+    if ( time(NULL) < m_creationTime + 1 )
+    {
+        event.Skip();

 
 

-    // But if m_popup was about to get the focus,
-    // don't disappear.
-    if (event.GetWindow() != m_popup)
+        return;
+    }
+#endif // __WXGTK__
+
+    // when we lose focus we always disappear - unless it goes to the popup (in
+    // which case we don't really lose it)
+    wxWindow *win = event.GetWindow();
+    while ( win )
+    {
+        if ( win == m_popup )
+            return;
+        win = win->GetParent();
+    }
+    
+    m_popup->DismissAndNotify();
+}
+
+void wxPopupFocusHandler::OnKeyDown(wxKeyEvent& event)
+{
+    // let the window have it first, it might process the keys
+    if ( !m_popup->ProcessEvent(event) )
+    {
+        // by default, dismiss the popup

         m_popup->DismissAndNotify();
         m_popup->DismissAndNotify();

+    }

 }
 
 #endif // wxUSE_POPUPWIN
 }
 
 #endif // wxUSE_POPUPWIN

+