my previous commit patched the wrong file

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

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index 531c674c3945a08f436c9d21938ef672942baba5..a519ffd7f07070bf408fed5141f5a6552ee89b8f 100644 (file)
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -2407,6 +2407,11 @@ void wxWindowBase::InternalOnPopupMenu(wxCommandEvent& event)
     gs_popupMenuSelection = event.GetId();
 }
 
+void wxWindowBase::InternalOnPopupMenuUpdate(wxUpdateUIEvent& WXUNUSED(event))
+{
+    // nothing to do but do not skip it
+}
+
 int
 wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
 {
@@ -2417,8 +2422,24 @@ wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
             NULL,
             this);
 
+    // it is common to construct the menu passed to this function dynamically
+    // using some fixed range of ids which could clash with the ids used
+    // elsewhere in the program, which could result in some menu items being
+    // unintentionally disabled or otherwise modified by update UI handlers
+    // elsewhere in the program code and this is difficult to avoid in the
+    // program itself, so instead we just temporarily suspend UI updating while
+    // this menu is shown
+    Connect(wxEVT_UPDATE_UI,
+            wxUpdateUIEventHandler(wxWindowBase::InternalOnPopupMenuUpdate),
+            NULL,
+            this);
+
     PopupMenu(&menu, x, y);
 
+    Disconnect(wxEVT_UPDATE_UI,
+               wxUpdateUIEventHandler(wxWindowBase::InternalOnPopupMenuUpdate),
+               NULL,
+               this);
     Disconnect(wxEVT_COMMAND_MENU_SELECTED,
                wxCommandEventHandler(wxWindowBase::InternalOnPopupMenu),
                NULL,
@@ -2897,6 +2918,61 @@ bool wxWindowBase::HasFocus() const
            win == wxConstCast(this, wxWindowBase)->GetMainWindowOfCompositeControl();
 }
 
+// ----------------------------------------------------------------------------
+// drag and drop
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DRAG_AND_DROP && !defined(__WXMSW__)
+
+namespace
+{
+
+class DragAcceptFilesTarget : public wxFileDropTarget
+{
+public:
+    DragAcceptFilesTarget(wxWindowBase *win) : m_win(win) {}
+
+    virtual bool OnDropFiles(wxCoord x, wxCoord y,
+                             const wxArrayString& filenames)
+    {
+        wxDropFilesEvent event(wxEVT_DROP_FILES,
+                               filenames.size(),
+                               wxCArrayString(filenames).Release());
+        event.SetEventObject(m_win);
+        event.m_pos.x = x;
+        event.m_pos.y = y;
+
+        return m_win->HandleWindowEvent(event);
+    }
+
+private:
+    wxWindowBase * const m_win;
+
+    DECLARE_NO_COPY_CLASS(DragAcceptFilesTarget)
+};
+
+
+} // anonymous namespace
+
+// Generic version of DragAcceptFiles(). It works by installing a simple
+// wxFileDropTarget-to-EVT_DROP_FILES adaptor and therefore cannot be used
+// together with explicit SetDropTarget() calls.
+void wxWindowBase::DragAcceptFiles(bool accept)
+{
+    if ( accept )
+    {
+        wxASSERT_MSG( !GetDropTarget(),
+                      "cannot use DragAcceptFiles() and SetDropTarget() together" );
+        SetDropTarget(new DragAcceptFilesTarget(this));
+    }
+    else
+    {
+        SetDropTarget(NULL);
+    }
+}
+
+#endif // wxUSE_DRAG_AND_DROP && !defined(__WXMSW__)
+
 // ----------------------------------------------------------------------------
 // global functions
 // ----------------------------------------------------------------------------