Applied [ 1613294 ] wxGetMouseState/wxIsKeyDown bug

[wxWidgets.git] / src / gtk / dnd.cpp

diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp
index a6922b83ee0e8a7b841ab00fb2398fa9eb2a11c3..0733a6e2e4fcc084b9632161c692e3e34d640534 100644 (file)
--- a/src/gtk/dnd.cpp
+++ b/src/gtk/dnd.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        dnd.cpp
+// Name:        src/gtk/dnd.cpp

 // Purpose:     wxDropTarget class
 // Author:      Robert Roebling
 // Id:          $Id$
 // Purpose:     wxDropTarget class
 // Author:      Robert Roebling
 // Id:          $Id$


@@ -10,17 +10,18 @@
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 

-#include "wx/dnd.h"
-#include "wx/log.h"
-
-

 #if wxUSE_DRAG_AND_DROP
 
 #if wxUSE_DRAG_AND_DROP
 

-#include "wx/window.h"
-#include "wx/app.h"
-#include "wx/gdicmn.h"
-#include "wx/intl.h"
-#include "wx/utils.h"
+#include "wx/dnd.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/utils.h"
+    #include "wx/window.h"
+    #include "wx/gdicmn.h"
+#endif

 
 #include "wx/gtk/private.h"
 
 
 #include "wx/gtk/private.h"
 


@@ -29,20 +30,6 @@
 #include <gtk/gtkdnd.h>
 #include <gtk/gtkselection.h>
 
 #include <gtk/gtkdnd.h>
 #include <gtk/gtkselection.h>
 

-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
-
-//-----------------------------------------------------------------------------
-// thread system
-//-----------------------------------------------------------------------------
-
-#if wxUSE_THREADS
-#endif
-

 //----------------------------------------------------------------------------
 // global data
 //----------------------------------------------------------------------------
 //----------------------------------------------------------------------------
 // global data
 //----------------------------------------------------------------------------


@@ -52,10 +39,17 @@ extern bool g_blockEventsOnDrag;
 // the flags used for the last DoDragDrop()
 static long gs_flagsForDrag = 0;
 
 // 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");
 // 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
 
 //----------------------------------------------------------------------------
 // standard icons


@@ -340,8 +334,10 @@ static gboolean target_drag_drop( GtkWidget *widget,
 
     if (!ret)
     {
 
     if (!ret)
     {

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );
         wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );

-
+#endif
+       

         /* cancel the whole thing */
         gtk_drag_finish( context,
                           FALSE,        /* no success */
         /* cancel the whole thing */
         gtk_drag_finish( context,
                           FALSE,        /* no success */


@@ -350,8 +346,10 @@ static gboolean target_drag_drop( GtkWidget *widget,
     }
     else
     {
     }
     else
     {

-        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") );
-
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned true") );
+#endif
+       

 #if wxUSE_THREADS
         /* disable GUI threads */
 #endif
 #if wxUSE_THREADS
         /* disable GUI threads */
 #endif


@@ -359,7 +357,7 @@ static gboolean target_drag_drop( GtkWidget *widget,
         GdkAtom format = drop_target->GetMatchingPair();
 
         // this does happen somehow, see bug 555111
         GdkAtom format = drop_target->GetMatchingPair();
 
         // this does happen somehow, see bug 555111

-        wxCHECK_MSG( format, FALSE, _T("no matching GdkAtom for format?") )
+        wxCHECK_MSG( format, FALSE, _T("no matching GdkAtom for format?") );

 
 /*
         GdkDragAction action = GDK_ACTION_MOVE;
 
 /*
         GdkDragAction action = GDK_ACTION_MOVE;


@@ -418,8 +416,10 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
         return;
     }
 
         return;
     }
 

+#ifdef __WXDEBUG__

     wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") );
     wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") );

-
+#endif
+   

     /* inform the wxDropTarget about the current GtkSelectionData.
        this is only valid for the duration of this call */
     drop_target->SetDragData( data );
     /* inform the wxDropTarget about the current GtkSelectionData.
        this is only valid for the duration of this call */
     drop_target->SetDragData( data );


@@ -428,15 +428,19 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
 
     if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
     {
 
     if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
     {

-        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") );
-
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned true") );
+#endif
+       

         /* tell GTK that data transfer was successful */
         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {
         /* tell GTK that data transfer was successful */
         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") );
         wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") );

-
+#endif
+       

         /* tell GTK that data transfer was not successful */
         gtk_drag_finish( context, FALSE, FALSE, time );
     }
         /* tell GTK that data transfer was not successful */
         gtk_drag_finish( context, FALSE, FALSE, time );
     }


@@ -607,29 +611,37 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     wxDataFormat format( selection_data->target );
 
 
     wxDataFormat format( selection_data->target );
 

+#ifdef __WXDEBUG__

     wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"),
                format.GetId().c_str());
     wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"),
                format.GetId().c_str());

-
+#endif
+   

     drop_source->m_retValue = wxDragCancel;
 
     wxDataObject *data = drop_source->GetDataObject();
 
     if (!data)
     {
     drop_source->m_retValue = wxDragCancel;
 
     wxDataObject *data = drop_source->GetDataObject();
 
     if (!data)
     {

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );
         wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );

-        return;
+#endif
+       return;

     }
 
     if (!data->IsSupportedFormat(format))
     {
     }
 
     if (!data->IsSupportedFormat(format))
     {

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") );
         wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") );

-        return;
+#endif
+       return;

     }
 
     if (data->GetDataSize(format) == 0)
     {
     }
 
     if (data->GetDataSize(format) == 0)
     {

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );
         wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );

-        return;
+#endif
+       return;

     }
 
     size_t size = data->GetDataSize(format);
     }
 
     size_t size = data->GetDataSize(format);


@@ -668,7 +680,7 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 extern "C" {
 static void source_drag_data_delete( 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)
                                      wxDropSource *WXUNUSED(drop_source) )
 {
     if (g_isIdle)


@@ -719,8 +731,7 @@ extern "C" {
 static gint
 gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source )
 {
 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) );
 
 
     source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
 


@@ -811,7 +822,7 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
     GdkPixmap *pixmap = icon->GetPixmap();
 
     gint width,height;
     GdkPixmap *pixmap = icon->GetPixmap();
 
     gint width,height;

-    gdk_window_get_size (pixmap, &width, &height);
+    gdk_drawable_get_size (pixmap, &width, &height);

 
     GdkColormap *colormap = gtk_widget_get_colormap( m_widget );
     gtk_widget_push_colormap (colormap);
 
     GdkColormap *colormap = gtk_widget_get_colormap( m_widget );
     gtk_widget_push_colormap (colormap);


@@ -822,7 +833,7 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
 
     gtk_widget_pop_colormap ();
 
 
     gtk_widget_pop_colormap ();
 

-    gtk_widget_set_usize (m_iconWindow, width, height);
+    gtk_widget_set_size_request (m_iconWindow, width, height);

     gtk_widget_realize (m_iconWindow);
 
     g_signal_connect (m_iconWindow, "configure_event",
     gtk_widget_realize (m_iconWindow);
 
     g_signal_connect (m_iconWindow, "configure_event",


@@ -845,6 +856,14 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
     if (g_blockEventsOnDrag)
         return wxDragNone;
 
     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;
 
     // disabled for now
     g_blockEventsOnDrag = true;
 


@@ -860,65 +879,38 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
     for (size_t i = 0; i < count; i++)
     {
         GdkAtom atom = array[i];
     for (size_t i = 0; i < count; i++)
     {
         GdkAtom atom = array[i];

+#ifdef __WXDEBUG__

         wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
         wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));

-        gtk_target_list_add( target_list, atom, 0, 0 );
+#endif
+       gtk_target_list_add( target_list, atom, 0, 0 );

     }
     delete[] array;
 
     }
     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
+    // 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;

 
 

-    /* 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;
-
-        GdkDragContext *context = gtk_drag_begin( m_widget,
+    GdkDragContext *context = gtk_drag_begin( m_widget,

                 target_list,
                 (GdkDragAction)action,
                 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;
 
 
     g_blockEventsOnDrag = false;