X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/de6185e212ebc37ff11ff70278e3c4f68419b097..bde733b0c646954653799d75d839960af3bd0d39:/src/gtk/dnd.cpp

diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp
index b199481b30..2a147ae682 100644
--- a/src/gtk/dnd.cpp
+++ b/src/gtk/dnd.cpp
@@ -19,11 +19,10 @@
     #include "wx/log.h"
     #include "wx/app.h"
     #include "wx/utils.h"
+    #include "wx/window.h"
+    #include "wx/gdicmn.h"
 #endif
 
-#include "wx/window.h"
-#include "wx/gdicmn.h"
-
 #include "wx/gtk/private.h"
 
 #include <gdk/gdkprivate.h>
@@ -40,10 +39,17 @@ extern bool g_blockEventsOnDrag;
 // the flags used for the last DoDragDrop()
 static long gs_flagsForDrag = 0;
 
+#ifdef __WXDEBUG__
 // the trace mask we use with wxLogTrace() - call
 // wxLog::AddTraceMask(TRACE_DND) to enable the trace messages from here
 // (there are quite a few of them, so don't enable this by default)
 static const wxChar *TRACE_DND = _T("dnd");
+#endif
+
+// global variables because GTK+ DnD want to have the
+// mouse event that caused it
+extern GdkEvent *g_lastMouseEvent;
+extern int       g_lastButtonNumber;
 
 //----------------------------------------------------------------------------
 // standard icons
@@ -656,7 +662,7 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 extern "C" {
 static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
-                                     GdkDragContext *context,
+                                     GdkDragContext *WXUNUSED(context),
                                      wxDropSource *WXUNUSED(drop_source) )
 {
     if (g_isIdle)
@@ -707,8 +713,7 @@ extern "C" {
 static gint
 gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source )
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    // don't need to install idle handler, its done from "event" signal
 
     source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
 
@@ -833,6 +838,14 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
     if (g_blockEventsOnDrag)
         return wxDragNone;
 
+    // don't start dragging if no button is down
+    if (g_lastButtonNumber == 0)
+        return wxDragNone;
+        
+    // we can only start a drag after a mouse event
+    if (g_lastMouseEvent == NULL)
+        return wxDragNone;
+
     // disabled for now
     g_blockEventsOnDrag = true;
 
@@ -853,60 +866,31 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
     }
     delete[] array;
 
-    GdkEventMotion event;
-    event.window = m_widget->window;
-    int x = 0;
-    int y = 0;
-    GdkModifierType state;
-    gdk_window_get_pointer( event.window, &x, &y, &state );
-    event.x = x;
-    event.y = y;
-    event.state = state;
-    event.time = (guint32)GDK_CURRENT_TIME;
-
-    /* GTK wants to know which button was pressed which caused the dragging */
-    int button_number = 0;
-    if (event.state & GDK_BUTTON1_MASK) button_number = 1;
-    else if (event.state & GDK_BUTTON2_MASK) button_number = 2;
-    else if (event.state & GDK_BUTTON3_MASK) button_number = 3;
+    int action = GDK_ACTION_COPY;
+    if ( flags & wxDrag_AllowMove )
+        action |= GDK_ACTION_MOVE;
 
-#if wxUSE_THREADS
-    /* disable GUI threads */
-#endif
-
-    /* don't start dragging if no button is down */
-    if (button_number)
-    {
-        int action = GDK_ACTION_COPY;
-        if ( flags & wxDrag_AllowMove )
-            action |= GDK_ACTION_MOVE;
-
-        // VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
-        //     to use a global to pass the flags to the drop target but I'd
-        //     surely prefer a better way to do it
-        gs_flagsForDrag = flags;
+    // VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
+    //     to use a global to pass the flags to the drop target but I'd
+    //     surely prefer a better way to do it
+    gs_flagsForDrag = flags;
 
-        GdkDragContext *context = gtk_drag_begin( m_widget,
+    GdkDragContext *context = gtk_drag_begin( m_widget,
                 target_list,
                 (GdkDragAction)action,
-                button_number,  /* number of mouse button which started drag */
-                (GdkEvent*) &event );
+                g_lastButtonNumber,  // number of mouse button which started drag
+                (GdkEvent*) g_lastMouseEvent );
 
-        m_dragContext = context;
+    m_dragContext = context;
 
-        PrepareIcon( action, context );
+    PrepareIcon( action, context );
 
-        while (m_waiting)
-            gtk_main_iteration();
+    while (m_waiting)
+        gtk_main_iteration();
 
-        m_retValue = ConvertFromGTK(context->action);
-        if ( m_retValue == wxDragNone )
-            m_retValue = wxDragCancel;
-    }
-
-#if wxUSE_THREADS
-    /* re-enable GUI threads */
-#endif
+    m_retValue = ConvertFromGTK(context->action);
+    if ( m_retValue == wxDragNone )
+         m_retValue = wxDragCancel;
 
     g_blockEventsOnDrag = false;