Add new files.

2006-03-21  Anders Carlsson  <andersca@imendio.com>

        * gtk/Makefile.am:
        Add new files.

        * gtk/gtkclipboard-quartz.c: Added.
        * gtk/gtkdnd-quartz.c: Added.
        * gtk/gtkquartz.c: Added.
        * gtk/gtkquartz.h: Added.
        Add dnd and clipboard implementations.

1 files changed, 1769 insertions, 0 deletions

diff --git a/gtk/gtkdnd-quartz.c b/gtk/gtkdnd-quartz.c
new file mode 100644
index 0000000000..2000b1efe1
--- /dev/null
+++ b/gtk/gtkdnd-quartz.c
@@ -0,0 +1,1769 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "gdkconfig.h"
+
+#include "gdk/gdkkeysyms.h"
+
+#include "gtkdnd.h"
+#include "gtkiconfactory.h"
+#include "gtkicontheme.h"
+#include "gtkimage.h"
+#include "gtkinvisible.h"
+#include "gtkmain.h"
+#include "gtkplug.h"
+#include "gtkstock.h"
+#include "gtkwindow.h"
+#include "gtkintl.h"
+#include "gtkalias.h"
+
+#include "gtkquartz.h"
+#include "gdk/quartz/gdkquartz.h"
+
+typedef struct _GtkDragSourceSite GtkDragSourceSite;
+typedef struct _GtkDragSourceInfo GtkDragSourceInfo;
+typedef struct _GtkDragDestSite GtkDragDestSite;
+typedef struct _GtkDragDestInfo GtkDragDestInfo;
+typedef struct _GtkDragFindData GtkDragFindData;
+
+static void     gtk_drag_find_widget            (GtkWidget        *widget,
+						 GtkDragFindData  *data);
+static void     gtk_drag_dest_site_destroy      (gpointer          data);
+static void     gtk_drag_dest_leave             (GtkWidget        *widget,
+						 GdkDragContext   *context,
+						 guint             time);
+static GtkDragDestInfo *gtk_drag_get_dest_info  (GdkDragContext   *context,
+						 gboolean          create);
+static void gtk_drag_source_site_destroy        (gpointer           data);
+
+struct _GtkDragSourceSite 
+{
+  GdkModifierType    start_button_mask;
+  GtkTargetList     *target_list;        /* Targets for drag data */
+  GdkDragAction      actions;            /* Possible actions */
+
+  /* Drag icon */
+  GtkImageType icon_type;
+  union
+  {
+    GtkImagePixmapData pixmap;
+    GtkImagePixbufData pixbuf;
+    GtkImageStockData stock;
+    GtkImageIconNameData name;
+  } icon_data;
+  GdkBitmap *icon_mask;
+
+  GdkColormap       *colormap;	         /* Colormap for drag icon */
+
+  /* Stored button press information to detect drag beginning */
+  gint               state;
+  gint               x, y;
+};
+
+struct _GtkDragSourceInfo 
+{
+  GtkWidget         *widget;
+  GtkTargetList     *target_list; /* Targets for drag data */
+  GdkDragAction      possible_actions; /* Actions allowed by source */
+  GdkDragContext    *context;	  /* drag context */
+
+  gint hot_x, hot_y;		  /* Hot spot for drag */
+  GdkPixbuf         *icon_pixbuf;
+};
+
+struct _GtkDragDestSite 
+{
+  GtkDestDefaults    flags;
+  GtkTargetList     *target_list;
+  GdkDragAction      actions;
+  guint              have_drag : 1;
+};
+
+struct _GtkDragDestInfo 
+{
+  GtkWidget         *widget;	   /* Widget in which drag is in */
+  GdkDragContext    *context;	   /* Drag context */
+  guint              dropped : 1;     /* Set after we receive a drop */
+  gint               drop_x, drop_y; /* Position of drop */
+};
+
+struct _GtkDragFindData 
+{
+  gint x;
+  gint y;
+  GdkDragContext *context;
+  GtkDragDestInfo *info;
+  gboolean found;
+  gboolean toplevel;
+  gboolean (*callback) (GtkWidget *widget, GdkDragContext *context,
+			gint x, gint y, guint32 time);
+  guint32 time;
+};
+
+
+@interface GtkDragSourceOwner : NSObject {
+  GtkDragSourceInfo *info;
+}
+
+@end
+
+@implementation GtkDragSourceOwner
+-(void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSString *)type
+{
+  guint target_info;
+  GtkSelectionData selection_data;
+
+  selection_data.selection = GDK_NONE;
+  selection_data.data = NULL;
+  selection_data.target = _gtk_quartz_pasteboard_type_to_atom (type);
+
+  if (gtk_target_list_find (info->target_list, 
+			    selection_data.target, 
+			    &target_info)) 
+    {
+      g_signal_emit_by_name (info->widget, "drag_data_get",
+			     info->context,
+			     &selection_data,
+			     target_info,
+			     time);
+
+      _gtk_quartz_set_selection_data_for_pasteboard (sender, &selection_data);
+      
+      g_free (selection_data.data);
+    }
+}
+
+- (id)initWithInfo:(GtkDragSourceInfo *)anInfo
+{
+  self = [super init];
+
+  if (self) 
+    {
+      info = anInfo;
+    }
+
+  return self;
+}
+
+@end
+
+void 
+gtk_drag_get_data (GtkWidget      *widget,
+		   GdkDragContext *context,
+		   GdkAtom         target,
+		   guint32         time)
+{
+  id <NSDraggingInfo> dragging_info = GDK_DRAG_CONTEXT_PRIVATE (context)->dragging_info;
+  NSPasteboard *pasteboard = [dragging_info draggingPasteboard];
+  GtkSelectionData *selection_data;
+  GtkDragDestInfo *info;
+  GtkDragDestSite *site;
+
+  info = gtk_drag_get_dest_info (context, FALSE);
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+
+  selection_data = _gtk_quartz_get_selection_data_from_pasteboard (pasteboard,
+								   target, 0);
+
+  if (site && site->target_list)
+    {
+      guint target_info;
+      
+      if (gtk_target_list_find (site->target_list, 
+				selection_data->target,
+				&target_info))
+	{
+	  if (!(site->flags & GTK_DEST_DEFAULT_DROP) ||
+	      selection_data->length >= 0)
+	    g_signal_emit_by_name (widget,
+				   "drag_data_received",
+				   context, info->drop_x, info->drop_y,
+				   selection_data,
+				   target_info, time);
+	}
+    }
+  else
+    {
+      g_signal_emit_by_name (widget,
+			     "drag_data_received",
+			     context, info->drop_x, info->drop_y,
+			     selection_data,
+			     0, time);
+    }
+  
+  if (site && site->flags & GTK_DEST_DEFAULT_DROP)
+    {
+      gtk_drag_finish (context, 
+		       (selection_data->length >= 0),
+		       (context->action == GDK_ACTION_MOVE),
+		       time);
+    }      
+}
+
+
+GtkWidget *
+gtk_drag_get_source_widget (GdkDragContext *context)
+{
+  return NULL;
+}
+
+void 
+gtk_drag_finish (GdkDragContext *context,
+		 gboolean        success,
+		 gboolean        del,
+		 guint32         time)
+{
+}
+
+static void
+gtk_drag_dest_info_destroy (gpointer data)
+{
+  GtkDragDestInfo *info = data;
+
+  g_free (info);
+}
+
+static GtkDragDestInfo *
+gtk_drag_get_dest_info (GdkDragContext *context,
+			gboolean        create)
+{
+  GtkDragDestInfo *info;
+  static GQuark info_quark = 0;
+  if (!info_quark)
+    info_quark = g_quark_from_static_string ("gtk-dest-info");
+  
+  info = g_object_get_qdata (G_OBJECT (context), info_quark);
+  if (!info && create)
+    {
+      info = g_new (GtkDragDestInfo, 1);
+      info->widget = NULL;
+      info->context = context;
+      info->dropped = FALSE;
+      g_object_set_qdata_full (G_OBJECT (context), info_quark,
+			       info, gtk_drag_dest_info_destroy);
+    }
+
+  return info;
+}
+
+static GQuark dest_info_quark = 0;
+
+static GtkDragSourceInfo *
+gtk_drag_get_source_info (GdkDragContext *context,
+			  gboolean        create)
+{
+  GtkDragSourceInfo *info;
+  if (!dest_info_quark)
+    dest_info_quark = g_quark_from_static_string ("gtk-source-info");
+  
+  info = g_object_get_qdata (G_OBJECT (context), dest_info_quark);
+  if (!info && create)
+    {
+      info = g_new0 (GtkDragSourceInfo, 1);
+      info->context = context;
+      g_object_set_qdata (G_OBJECT (context), dest_info_quark, info);
+    }
+
+  return info;
+}
+
+static void
+gtk_drag_clear_source_info (GdkDragContext *context)
+{
+  g_object_set_qdata (G_OBJECT (context), dest_info_quark, NULL);
+}
+
+/*************************************************************
+ * gtk_drag_highlight_expose:
+ *     Callback for expose_event for highlighted widgets.
+ *   arguments:
+ *     widget:
+ *     event:
+ *     data:
+ *   results:
+ *************************************************************/
+
+static gboolean
+gtk_drag_highlight_expose (GtkWidget      *widget,
+			   GdkEventExpose *event,
+			   gpointer        data)
+{
+  gint x, y, width, height;
+  
+  if (GTK_WIDGET_DRAWABLE (widget))
+    {
+      cairo_t *cr;
+      
+      if (GTK_WIDGET_NO_WINDOW (widget))
+	{
+	  x = widget->allocation.x;
+	  y = widget->allocation.y;
+	  width = widget->allocation.width;
+	  height = widget->allocation.height;
+	}
+      else
+	{
+	  x = 0;
+	  y = 0;
+	  gdk_drawable_get_size (widget->window, &width, &height);
+	}
+      
+      gtk_paint_shadow (widget->style, widget->window,
+		        GTK_STATE_NORMAL, GTK_SHADOW_OUT,
+		        NULL, widget, "dnd",
+			x, y, width, height);
+
+      cr = gdk_cairo_create (widget->window);
+      cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
+      cairo_set_line_width (cr, 1.0);
+      cairo_rectangle (cr,
+		       x + 0.5, y + 0.5,
+		       width - 1, height - 1);
+      cairo_stroke (cr);
+      cairo_destroy (cr);
+    }
+
+  return FALSE;
+}
+
+/*************************************************************
+ * gtk_drag_highlight:
+ *     Highlight the given widget in the default manner.
+ *   arguments:
+ *     widget:
+ *   results:
+ *************************************************************/
+
+void 
+gtk_drag_highlight (GtkWidget  *widget)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  g_signal_connect_after (widget, "expose_event",
+			  G_CALLBACK (gtk_drag_highlight_expose),
+			  NULL);
+
+  gtk_widget_queue_draw (widget);
+}
+
+/*************************************************************
+ * gtk_drag_unhighlight:
+ *     Refresh the given widget to remove the highlight.
+ *   arguments:
+ *     widget:
+ *   results:
+ *************************************************************/
+
+void 
+gtk_drag_unhighlight (GtkWidget *widget)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  g_signal_handlers_disconnect_by_func (widget,
+					gtk_drag_highlight_expose,
+					NULL);
+  
+  gtk_widget_queue_draw (widget);
+}
+
+static NSWindow *
+get_toplevel_nswindow (GtkWidget *widget)
+{
+  GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
+  
+  if (GTK_WIDGET_TOPLEVEL (toplevel) && toplevel->window)
+    return [gdk_quartz_window_get_nsview (toplevel->window) window];
+  else
+    return NULL;
+}
+
+static void
+register_types (GtkWidget *widget, GtkDragDestSite *site)
+{
+  if (site->target_list)
+    {
+      NSWindow *nswindow = get_toplevel_nswindow (widget);
+      NSArray *types;
+      NSAutoreleasePool *pool;
+
+      if (!nswindow)
+	return;
+
+      pool= [[NSAutoreleasePool alloc] init];
+      types = _gtk_quartz_target_list_to_pasteboard_types (site->target_list);
+
+      [nswindow registerForDraggedTypes:types];
+      [pool release];
+    }
+}
+
+static void
+gtk_drag_dest_realized (GtkWidget *widget, 
+			gpointer   user_data)
+{
+  GtkDragDestSite *site = user_data;
+
+  register_types (widget, site);
+}
+
+static void
+gtk_drag_dest_hierarchy_changed (GtkWidget *widget,
+				 GtkWidget *previous_toplevel,
+				 gpointer   user_data)
+{
+  GtkDragDestSite *site = user_data;
+
+  register_types (widget, site);
+}
+
+static void
+gtk_drag_dest_site_destroy (gpointer data)
+{
+  GtkDragDestSite *site = data;
+    
+  if (site->target_list)
+    gtk_target_list_unref (site->target_list);
+
+  g_free (site);
+}
+
+void 
+gtk_drag_dest_set (GtkWidget            *widget,
+		   GtkDestDefaults       flags,
+		   const GtkTargetEntry *targets,
+		   gint                  n_targets,
+		   GdkDragAction         actions)
+{
+  GtkDragDestSite *old_site, *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  old_site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+  if (old_site)
+    {
+      g_signal_handlers_disconnect_by_func (widget,
+					    gtk_drag_dest_realized,
+					    old_site);
+      g_signal_handlers_disconnect_by_func (widget,
+					    gtk_drag_dest_hierarchy_changed,
+					    old_site);
+    }
+
+  site = g_new (GtkDragDestSite, 1);
+  site->flags = flags;
+  site->have_drag = FALSE;
+  if (targets)
+    site->target_list = gtk_target_list_new (targets, n_targets);
+  else
+    site->target_list = NULL;
+  site->actions = actions;
+
+  if (GTK_WIDGET_REALIZED (widget))
+    gtk_drag_dest_realized (widget, site);
+
+  g_signal_connect (widget, "realize",
+		    G_CALLBACK (gtk_drag_dest_realized), site);
+  g_signal_connect (widget, "hierarchy_changed",
+		    G_CALLBACK (gtk_drag_dest_hierarchy_changed), site);
+
+  g_object_set_data_full (G_OBJECT (widget), I_("gtk-drag-dest"),
+			  site, gtk_drag_dest_site_destroy);
+}
+
+void 
+gtk_drag_dest_set_proxy (GtkWidget      *widget,
+			 GdkWindow      *proxy_window,
+			 GdkDragProtocol protocol,
+			 gboolean        use_coordinates)
+{
+  g_warning ("gtk_drag_dest_set_proxy is not supported on Mac OS X.");
+}
+
+void 
+gtk_drag_dest_unset (GtkWidget *widget)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  g_object_set_data (G_OBJECT (widget), I_("gtk-drag-dest"), NULL);
+}
+
+GtkTargetList*
+gtk_drag_dest_get_target_list (GtkWidget *widget)
+{
+  GtkDragDestSite *site;
+
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
+  
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+
+  return site ? site->target_list : NULL;  
+}
+
+void
+gtk_drag_dest_set_target_list (GtkWidget      *widget,
+                               GtkTargetList  *target_list)
+{
+  GtkDragDestSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+  
+  if (!site)
+    {
+      g_warning ("Can't set a target list on a widget until you've called gtk_drag_dest_set() "
+                 "to make the widget into a drag destination");
+      return;
+    }
+
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  
+  if (site->target_list)
+    gtk_target_list_unref (site->target_list);
+
+  site->target_list = target_list;
+
+  register_types (widget, site);
+}
+
+void
+gtk_drag_dest_add_text_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_dest_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_text_targets (target_list, 0);
+  gtk_drag_dest_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+void
+gtk_drag_dest_add_image_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_dest_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_image_targets (target_list, 0, FALSE);
+  gtk_drag_dest_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+void
+gtk_drag_dest_add_uri_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_dest_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_uri_targets (target_list, 0);
+  gtk_drag_dest_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+static void
+prepend_and_ref_widget (GtkWidget *widget,
+			gpointer   data)
+{
+  GSList **slist_p = data;
+
+  *slist_p = g_slist_prepend (*slist_p, g_object_ref (widget));
+}
+
+static void
+gtk_drag_find_widget (GtkWidget       *widget,
+		      GtkDragFindData *data)
+{
+  GtkAllocation new_allocation;
+  gint allocation_to_window_x = 0;
+  gint allocation_to_window_y = 0;
+  gint x_offset = 0;
+  gint y_offset = 0;
+
+  if (data->found || !GTK_WIDGET_MAPPED (widget) || !GTK_WIDGET_SENSITIVE (widget))
+    return;
+
+  /* Note that in the following code, we only count the
+   * position as being inside a WINDOW widget if it is inside
+   * widget->window; points that are outside of widget->window
+   * but within the allocation are not counted. This is consistent
+   * with the way we highlight drag targets.
+   *
+   * data->x,y are relative to widget->parent->window (if
+   * widget is not a toplevel, widget->window otherwise).
+   * We compute the allocation of widget in the same coordinates,
+   * clipping to widget->window, and all intermediate
+   * windows. If data->x,y is inside that, then we translate
+   * our coordinates to be relative to widget->window and
+   * recurse.
+   */  
+  new_allocation = widget->allocation;
+
+  if (widget->parent)
+    {
+      gint tx, ty;
+      GdkWindow *window = widget->window;
+
+      /* Compute the offset from allocation-relative to
+       * window-relative coordinates.
+       */
+      allocation_to_window_x = widget->allocation.x;
+      allocation_to_window_y = widget->allocation.y;
+
+      if (!GTK_WIDGET_NO_WINDOW (widget))
+	{
+	  /* The allocation is relative to the parent window for
+	   * window widgets, not to widget->window.
+	   */
+          gdk_window_get_position (window, &tx, &ty);
+	  
+          allocation_to_window_x -= tx;
+          allocation_to_window_y -= ty;
+	}
+
+      new_allocation.x = 0 + allocation_to_window_x;
+      new_allocation.y = 0 + allocation_to_window_y;
+      
+      while (window && window != widget->parent->window)
+	{
+	  GdkRectangle window_rect = { 0, 0, 0, 0 };
+	  
+	  gdk_drawable_get_size (window, &window_rect.width, &window_rect.height);
+
+	  gdk_rectangle_intersect (&new_allocation, &window_rect, &new_allocation);
+
+	  gdk_window_get_position (window, &tx, &ty);
+	  new_allocation.x += tx;
+	  x_offset += tx;
+	  new_allocation.y += ty;
+	  y_offset += ty;
+	  
+	  window = gdk_window_get_parent (window);
+	}
+
+      if (!window)		/* Window and widget heirarchies didn't match. */
+	return;
+    }
+
+  if (data->toplevel ||
+      ((data->x >= new_allocation.x) && (data->y >= new_allocation.y) &&
+       (data->x < new_allocation.x + new_allocation.width) && 
+       (data->y < new_allocation.y + new_allocation.height)))
+    {
+      /* First, check if the drag is in a valid drop site in
+       * one of our children 
+       */
+      if (GTK_IS_CONTAINER (widget))
+	{
+	  GtkDragFindData new_data = *data;
+	  GSList *children = NULL;
+	  GSList *tmp_list;
+	  
+	  new_data.x -= x_offset;
+	  new_data.y -= y_offset;
+	  new_data.found = FALSE;
+	  new_data.toplevel = FALSE;
+	  
+	  /* need to reference children temporarily in case the
+	   * ::drag_motion/::drag_drop callbacks change the widget heirarchy.
+	   */
+	  gtk_container_forall (GTK_CONTAINER (widget), prepend_and_ref_widget, &children);
+	  for (tmp_list = children; tmp_list; tmp_list = tmp_list->next)
+	    {
+	      if (!new_data.found && GTK_WIDGET_DRAWABLE (tmp_list->data))
+		gtk_drag_find_widget (tmp_list->data, &new_data);
+	      g_object_unref (tmp_list->data);
+	    }
+	  g_slist_free (children);
+	  
+	  data->found = new_data.found;
+	}
+
+      /* If not, and this widget is registered as a drop site, check to
+       * emit "drag_motion" to check if we are actually in
+       * a drop site.
+       */
+      if (!data->found &&
+	  g_object_get_data (G_OBJECT (widget), "gtk-drag-dest"))
+	{
+	  data->found = data->callback (widget,
+					data->context,
+					data->x - x_offset - allocation_to_window_x,
+					data->y - y_offset - allocation_to_window_y,
+					data->time);
+	  /* If so, send a "drag_leave" to the last widget */
+	  if (data->found)
+	    {
+	      if (data->info->widget && data->info->widget != widget)
+		{
+		  gtk_drag_dest_leave (data->info->widget, data->context, data->time);
+		}
+	      data->info->widget = widget;
+	    }
+	}
+    }
+}
+
+static void  
+gtk_drag_dest_leave (GtkWidget      *widget,
+		     GdkDragContext *context,
+		     guint           time)
+{
+  GtkDragDestSite *site;
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+  g_return_if_fail (site != NULL);
+
+  if ((site->flags & GTK_DEST_DEFAULT_HIGHLIGHT) && site->have_drag)
+    gtk_drag_unhighlight (widget);
+  
+  if (!(site->flags & GTK_DEST_DEFAULT_MOTION) || site->have_drag)
+    g_signal_emit_by_name (widget, "drag_leave",
+			   context, time);
+  
+  site->have_drag = FALSE;
+}
+
+static gboolean
+gtk_drag_dest_motion (GtkWidget	     *widget,
+		      GdkDragContext *context,
+		      gint            x,
+		      gint            y,
+		      guint           time)
+{
+  GtkDragDestSite *site;
+  GdkDragAction action = 0;
+  gboolean retval;
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+  g_return_val_if_fail (site != NULL, FALSE);
+
+  if (site->flags & GTK_DEST_DEFAULT_MOTION)
+    {
+      if (context->suggested_action & site->actions)
+	action = context->suggested_action;
+      
+      if (action && gtk_drag_dest_find_target (widget, context, NULL))
+	{
+	  if (!site->have_drag)
+	    {
+	      site->have_drag = TRUE;
+	      if (site->flags & GTK_DEST_DEFAULT_HIGHLIGHT)
+		gtk_drag_highlight (widget);
+	    }
+	  
+	  gdk_drag_status (context, action, time);
+	}
+      else
+	{
+	  gdk_drag_status (context, 0, time);
+	  return TRUE;
+	}
+    }
+
+  g_signal_emit_by_name (widget, "drag_motion",
+			 context, x, y, time, &retval);
+
+  return (site->flags & GTK_DEST_DEFAULT_MOTION) ? TRUE : retval;
+}
+
+static gboolean
+gtk_drag_dest_drop (GtkWidget	     *widget,
+		    GdkDragContext   *context,
+		    gint              x,
+		    gint              y,
+		    guint             time)
+{
+  GtkDragDestSite *site;
+  GtkDragDestInfo *info;
+  gboolean retval;
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-drag-dest");
+  g_return_val_if_fail (site != NULL, FALSE);
+
+  info = gtk_drag_get_dest_info (context, FALSE);
+  g_return_val_if_fail (info != NULL, FALSE);
+
+  info->drop_x = x;
+  info->drop_y = y;
+
+  if (site->flags & GTK_DEST_DEFAULT_DROP)
+    {
+      GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
+
+      if (target == GDK_NONE)
+	{
+	  gtk_drag_finish (context, FALSE, FALSE, time);
+	  return TRUE;
+	}
+      else
+	gtk_drag_get_data (widget, context, target, time);
+    }
+  
+  g_signal_emit_by_name (widget, "drag_drop",
+			 context, x, y, time, &retval);
+
+  return (site->flags & GTK_DEST_DEFAULT_DROP) ? TRUE : retval;
+}
+
+void
+_gtk_drag_dest_handle_event (GtkWidget *toplevel,
+			     GdkEvent  *event)
+{
+  GtkDragDestInfo *info;
+  GdkDragContext *context;
+
+  g_return_if_fail (toplevel != NULL);
+  g_return_if_fail (event != NULL);
+
+  context = event->dnd.context;
+
+  info = gtk_drag_get_dest_info (context, TRUE);
+
+  /* Find the widget for the event */
+  switch (event->type)
+    {
+    case GDK_DRAG_ENTER:
+      break;
+
+    case GDK_DRAG_LEAVE:
+      if (info->widget)
+	{
+	  gtk_drag_dest_leave (info->widget, context, event->dnd.time);
+	  info->widget = NULL;
+	}
+      break;
+
+    case GDK_DRAG_MOTION:
+    case GDK_DROP_START:
+      {
+	GtkDragFindData data;
+	gint tx, ty;
+
+	if (event->type == GDK_DROP_START)
+	  {
+	    info->dropped = TRUE;
+	    /* We send a leave here so that the widget unhighlights
+	     * properly.
+	     */
+	    if (info->widget)
+	      {
+		gtk_drag_dest_leave (info->widget, context, event->dnd.time);
+		info->widget = NULL;
+	      }
+	  }
+
+	gdk_window_get_position (toplevel->window, &tx, &ty);
+	
+	data.x = event->dnd.x_root - tx;
+	data.y = event->dnd.y_root - ty;
+ 	data.context = context;
+	data.info = info;
+	data.found = FALSE;
+	data.toplevel = TRUE;
+	data.callback = (event->type == GDK_DRAG_MOTION) ?
+	  gtk_drag_dest_motion : gtk_drag_dest_drop;
+	data.time = event->dnd.time;
+	
+	gtk_drag_find_widget (toplevel, &data);
+
+	if (info->widget && !data.found)
+	  {
+	    gtk_drag_dest_leave (info->widget, context, event->dnd.time);
+	    info->widget = NULL;
+	  }
+
+	/* Send a reply.
+	 */
+	if (event->type == GDK_DRAG_MOTION)
+	  {
+	    if (!data.found)
+	      gdk_drag_status (context, 0, event->dnd.time);
+	  }
+
+	break;
+      default:
+	g_assert_not_reached ();
+      }
+    }
+}
+
+
+GdkAtom
+gtk_drag_dest_find_target (GtkWidget      *widget,
+                           GdkDragContext *context,
+                           GtkTargetList  *target_list)
+{
+  id <NSDraggingInfo> dragging_info = GDK_DRAG_CONTEXT_PRIVATE (context)->dragging_info;
+  NSPasteboard *pasteboard = [dragging_info draggingPasteboard];
+  GtkWidget *source_widget;
+  GList *tmp_target;
+  GList *tmp_source = NULL;
+  GList *source_targets;
+
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), GDK_NONE);
+  g_return_val_if_fail (GDK_IS_DRAG_CONTEXT (context), GDK_NONE);
+  g_return_val_if_fail (!context->is_source, GDK_NONE);
+
+  source_widget = gtk_drag_get_source_widget (context);
+
+  if (target_list == NULL)
+    target_list = gtk_drag_dest_get_target_list (widget);
+  
+  if (target_list == NULL)
+    return GDK_NONE;
+
+  source_targets = _gtk_quartz_pasteboard_types_to_atom_list ([pasteboard types]);
+  tmp_target = target_list->list;
+  while (tmp_target)
+    {
+      GtkTargetPair *pair = tmp_target->data;
+      tmp_source = source_targets;
+      while (tmp_source)
+	{
+	  if (tmp_source->data == GUINT_TO_POINTER (pair->target))
+	    {
+	      if ((!(pair->flags & GTK_TARGET_SAME_APP) || source_widget) &&
+		  (!(pair->flags & GTK_TARGET_SAME_WIDGET) || (source_widget == widget)))
+		{
+		  g_list_free (source_targets);
+		  return pair->target;
+		}
+	      else
+		break;
+	    }
+	  tmp_source = tmp_source->next;
+	}
+      tmp_target = tmp_target->next;
+    }
+
+  g_list_free (source_targets);
+  return GDK_NONE;
+}
+
+static GdkDragContext *
+gtk_drag_begin_internal (GtkWidget         *widget,
+			 GtkDragSourceSite *site,
+			 GtkTargetList     *target_list,
+			 GdkDragAction      actions,
+			 gint               button,
+			 GdkEvent          *event)
+{
+  GtkDragSourceInfo *info;
+  GdkDragContext *context;
+  NSWindow *nswindow;
+  NSPasteboard *pasteboard;
+  GtkDragSourceOwner *owner;
+  NSEvent *nsevent;
+  NSPoint point;
+
+  context = gdk_drag_begin (NULL, NULL);
+  context->is_source = TRUE;
+
+  info = gtk_drag_get_source_info (context, TRUE);
+  
+  info->widget = gtk_widget_ref (widget);
+  info->target_list = target_list;
+  gtk_target_list_ref (target_list);
+
+  info->possible_actions = actions;
+  
+  g_signal_emit_by_name (widget, "drag_begin", info->context);
+
+  /* Ensure that we have an icon before we start the drag; the
+   * application may have set one in ::drag_begin, or it may
+   * not have set one.
+   */
+  if (!info->icon_pixbuf)
+    {
+      if (!site || site->icon_type == GTK_IMAGE_EMPTY)
+	gtk_drag_set_icon_default (context);
+      else
+	switch (site->icon_type)
+	  {
+	  case GTK_IMAGE_PIXMAP:
+	    gtk_drag_set_icon_pixmap (context,
+				      site->colormap,
+				      site->icon_data.pixmap.pixmap,
+				      site->icon_mask,
+				      -2, -2);
+	    break;
+	  case GTK_IMAGE_PIXBUF:
+	    gtk_drag_set_icon_pixbuf (context,
+				      site->icon_data.pixbuf.pixbuf,
+				      -2, -2);
+	    break;
+	  case GTK_IMAGE_STOCK:
+	    gtk_drag_set_icon_stock (context,
+				     site->icon_data.stock.stock_id,
+				     -2, -2);
+	    break;
+	  case GTK_IMAGE_ICON_NAME:
+	    gtk_drag_set_icon_name (context,
+			    	    site->icon_data.name.icon_name,
+				    -2, -2);
+	    break;
+	  case GTK_IMAGE_EMPTY:
+	  default:
+	    g_assert_not_reached();
+	    break;
+	  }
+    }
+
+  gdk_pointer_ungrab (0);
+  
+  pasteboard = [NSPasteboard pasteboardWithName:NSDragPboard];
+  owner = [[GtkDragSourceOwner alloc] initWithInfo:info];
+
+  [pasteboard declareTypes:_gtk_quartz_target_list_to_pasteboard_types (target_list) owner:owner];
+
+  /* Ref the context. It's unreffed when the drag has been aborted */
+  g_object_ref (info->context);
+
+  nswindow = get_toplevel_nswindow (widget);
+
+  /* FIXME: If the event isn't a mouse event, use the global cursor position instead */
+  nsevent = [nswindow currentEvent];
+  point = [nsevent locationInWindow];
+
+  [nswindow dragImage:_gtk_quartz_create_image_from_pixbuf (info->icon_pixbuf)
+                   at:point
+               offset:NSMakeSize(0, 0)
+                event:nsevent
+           pasteboard:pasteboard
+               source:nswindow
+            slideBack:YES];
+
+  return info->context;
+}
+
+GdkDragContext *
+gtk_drag_begin (GtkWidget         *widget,
+		GtkTargetList     *targets,
+		GdkDragAction      actions,
+		gint               button,
+		GdkEvent          *event)
+{
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
+  g_return_val_if_fail (GTK_WIDGET_REALIZED (widget), NULL);
+  g_return_val_if_fail (targets != NULL, NULL);
+
+  return gtk_drag_begin_internal (widget, NULL, targets,
+				  actions, button, event);
+}
+
+
+static gboolean
+gtk_drag_source_event_cb (GtkWidget      *widget,
+			  GdkEvent       *event,
+			  gpointer        data)
+{
+  GtkDragSourceSite *site;
+  gboolean retval = FALSE;
+  site = (GtkDragSourceSite *)data;
+
+  switch (event->type)
+    {
+    case GDK_BUTTON_PRESS:
+      if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask)
+	{
+	  site->state |= (GDK_BUTTON1_MASK << (event->button.button - 1));
+	  site->x = event->button.x;
+	  site->y = event->button.y;
+	}
+      break;
+      
+    case GDK_BUTTON_RELEASE:
+      if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask)
+	site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1));
+      break;
+      
+    case GDK_MOTION_NOTIFY:
+      if (site->state & event->motion.state & site->start_button_mask)
+	{
+	  /* FIXME: This is really broken and can leave us
+	   * with a stuck grab
+	   */
+	  int i;
+	  for (i=1; i<6; i++)
+	    {
+	      if (site->state & event->motion.state & 
+		  GDK_BUTTON1_MASK << (i - 1))
+		break;
+	    }
+
+	  if (gtk_drag_check_threshold (widget, site->x, site->y,
+					event->motion.x, event->motion.y))
+	    {
+	      site->state = 0;
+	      gtk_drag_begin_internal (widget, site, site->target_list,
+				       site->actions, 
+				       i, event);
+
+	      retval = TRUE;
+	    }
+	}
+      break;
+      
+    default:			/* hit for 2/3BUTTON_PRESS */
+      break;
+    }
+  
+  return retval;
+}
+
+void 
+gtk_drag_source_set (GtkWidget            *widget,
+		     GdkModifierType       start_button_mask,
+		     const GtkTargetEntry *targets,
+		     gint                  n_targets,
+		     GdkDragAction         actions)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+
+  gtk_widget_add_events (widget,
+			 gtk_widget_get_events (widget) |
+			 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
+			 GDK_BUTTON_MOTION_MASK);
+
+  if (site)
+    {
+      if (site->target_list)
+	gtk_target_list_unref (site->target_list);
+    }
+  else
+    {
+      site = g_new0 (GtkDragSourceSite, 1);
+
+      site->icon_type = GTK_IMAGE_EMPTY;
+      
+      g_signal_connect (widget, "button_press_event",
+			G_CALLBACK (gtk_drag_source_event_cb),
+			site);
+      g_signal_connect (widget, "button_release_event",
+			G_CALLBACK (gtk_drag_source_event_cb),
+			site);
+      g_signal_connect (widget, "motion_notify_event",
+			G_CALLBACK (gtk_drag_source_event_cb),
+			site);
+      
+      g_object_set_data_full (G_OBJECT (widget),
+			      I_("gtk-site-data"), 
+			      site, gtk_drag_source_site_destroy);
+    }
+
+  site->start_button_mask = start_button_mask;
+
+  site->target_list = gtk_target_list_new (targets, n_targets);
+
+  site->actions = actions;
+}
+
+/*************************************************************
+ * gtk_drag_source_unset
+ *     Unregister this widget as a drag source.
+ *   arguments:
+ *     widget:
+ *   results:
+ *************************************************************/
+
+void 
+gtk_drag_source_unset (GtkWidget *widget)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+
+  if (site)
+    {
+      g_signal_handlers_disconnect_by_func (widget,
+					    gtk_drag_source_event_cb,
+					    site);
+      g_object_set_data (G_OBJECT (widget), I_("gtk-site-data"), NULL);
+    }
+}
+
+GtkTargetList *
+gtk_drag_source_get_target_list (GtkWidget *widget)
+{
+  GtkDragSourceSite *site;
+
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+
+  return site ? site->target_list : NULL;
+
+}
+
+void
+gtk_drag_source_set_target_list (GtkWidget     *widget,
+                                 GtkTargetList *target_list)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  if (site == NULL)
+    {
+      g_warning ("gtk_drag_source_set_target_list() requires the widget "
+		 "to already be a drag source.");
+      return;
+    }
+
+  if (target_list)
+    gtk_target_list_ref (target_list);
+
+  if (site->target_list)
+    gtk_target_list_unref (site->target_list);
+
+  site->target_list = target_list;
+}
+
+/**
+ * gtk_drag_source_add_text_targets:
+ * @widget: a #GtkWidget that's is a drag source
+ *
+ * Add the text targets supported by #GtkSelection to
+ * the target list of the drag source.  The targets
+ * are added with @info = 0. If you need another value, 
+ * use gtk_target_list_add_text_targets() and
+ * gtk_drag_source_set_target_list().
+ * 
+ * Since: 2.6
+ **/
+void
+gtk_drag_source_add_text_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_source_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_text_targets (target_list, 0);
+  gtk_drag_source_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+void
+gtk_drag_source_add_image_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_source_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_image_targets (target_list, 0, TRUE);
+  gtk_drag_source_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+void
+gtk_drag_source_add_uri_targets (GtkWidget *widget)
+{
+  GtkTargetList *target_list;
+
+  target_list = gtk_drag_source_get_target_list (widget);
+  if (target_list)
+    gtk_target_list_ref (target_list);
+  else
+    target_list = gtk_target_list_new (NULL, 0);
+  gtk_target_list_add_uri_targets (target_list, 0);
+  gtk_drag_source_set_target_list (widget, target_list);
+  gtk_target_list_unref (target_list);
+}
+
+static void
+gtk_drag_source_unset_icon (GtkDragSourceSite *site)
+{
+  switch (site->icon_type)
+    {
+    case GTK_IMAGE_EMPTY:
+      break;
+    case GTK_IMAGE_PIXMAP:
+      if (site->icon_data.pixmap.pixmap)
+	g_object_unref (site->icon_data.pixmap.pixmap);
+      if (site->icon_mask)
+	g_object_unref (site->icon_mask);
+      break;
+    case GTK_IMAGE_PIXBUF:
+      g_object_unref (site->icon_data.pixbuf.pixbuf);
+      break;
+    case GTK_IMAGE_STOCK:
+      g_free (site->icon_data.stock.stock_id);
+      break;
+    case GTK_IMAGE_ICON_NAME:
+      g_free (site->icon_data.name.icon_name);
+      break;
+    default:
+      g_assert_not_reached();
+      break;
+    }
+  site->icon_type = GTK_IMAGE_EMPTY;
+  
+  if (site->colormap)
+    g_object_unref (site->colormap);
+  site->colormap = NULL;
+}
+
+static void 
+gtk_drag_source_site_destroy (gpointer data)
+{
+  GtkDragSourceSite *site = data;
+
+  if (site->target_list)
+    gtk_target_list_unref (site->target_list);
+
+  gtk_drag_source_unset_icon (site);
+  g_free (site);
+}
+
+void 
+gtk_drag_source_set_icon (GtkWidget     *widget,
+			  GdkColormap   *colormap,
+			  GdkPixmap     *pixmap,
+			  GdkBitmap     *mask)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (GDK_IS_COLORMAP (colormap));
+  g_return_if_fail (GDK_IS_PIXMAP (pixmap));
+  g_return_if_fail (!mask || GDK_IS_PIXMAP (mask));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  g_return_if_fail (site != NULL);
+  
+  g_object_ref (colormap);
+  g_object_ref (pixmap);
+  if (mask)
+    g_object_ref (mask);
+
+  gtk_drag_source_unset_icon (site);
+
+  site->icon_type = GTK_IMAGE_PIXMAP;
+  
+  site->icon_data.pixmap.pixmap = pixmap;
+  site->icon_mask = mask;
+  site->colormap = colormap;
+}
+
+void 
+gtk_drag_source_set_icon_pixbuf (GtkWidget   *widget,
+				 GdkPixbuf   *pixbuf)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  g_return_if_fail (site != NULL); 
+  g_object_ref (pixbuf);
+
+  gtk_drag_source_unset_icon (site);
+
+  site->icon_type = GTK_IMAGE_PIXBUF;
+  site->icon_data.pixbuf.pixbuf = pixbuf;
+}
+
+/**
+ * gtk_drag_source_set_icon_stock:
+ * @widget: a #GtkWidget
+ * @stock_id: the ID of the stock icon to use
+ *
+ * Sets the icon that will be used for drags from a particular source
+ * to a stock icon. 
+ **/
+void 
+gtk_drag_source_set_icon_stock (GtkWidget   *widget,
+				const gchar *stock_id)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (stock_id != NULL);
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  g_return_if_fail (site != NULL);
+  
+  gtk_drag_source_unset_icon (site);
+
+  site->icon_type = GTK_IMAGE_STOCK;
+  site->icon_data.stock.stock_id = g_strdup (stock_id);
+}
+
+/**
+ * gtk_drag_source_set_icon_name:
+ * @widget: a #GtkWidget
+ * @icon_name: name of icon to use
+ * 
+ * Sets the icon that will be used for drags from a particular source
+ * to a themed icon. See the docs for #GtkIconTheme for more details.
+ *
+ * Since: 2.8
+ **/
+void 
+gtk_drag_source_set_icon_name (GtkWidget   *widget,
+			       const gchar *icon_name)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_if_fail (icon_name != NULL);
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  g_return_if_fail (site != NULL);
+
+  gtk_drag_source_unset_icon (site);
+
+  site->icon_type = GTK_IMAGE_ICON_NAME;
+  site->icon_data.name.icon_name = g_strdup (icon_name);
+}
+
+
+/**
+ * gtk_drag_set_icon_widget:
+ * @context: the context for a drag. (This must be called 
+          with a  context for the source side of a drag)
+ * @widget: a toplevel window to use as an icon.
+ * @hot_x: the X offset within @widget of the hotspot.
+ * @hot_y: the Y offset within @widget of the hotspot.
+ * 
+ * Changes the icon for a widget to a given widget. GTK+
+ * will not destroy the icon, so if you don't want
+ * it to persist, you should connect to the "drag_end" 
+ * signal and destroy it yourself.
+ **/
+void 
+gtk_drag_set_icon_widget (GdkDragContext    *context,
+			  GtkWidget         *widget,
+			  gint               hot_x,
+			  gint               hot_y)
+{
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (context->is_source);
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  g_warning ("gtk_drag_set_icon_widget is not supported on Mac OS X");
+}
+
+static void
+set_icon_stock_pixbuf (GdkDragContext    *context,
+		       const gchar       *stock_id,
+		       GdkPixbuf         *pixbuf,
+		       gint               hot_x,
+		       gint               hot_y)
+{
+  GtkDragSourceInfo *info;
+
+  info = gtk_drag_get_source_info (context, FALSE);
+
+  if (stock_id)
+    {
+      pixbuf = gtk_widget_render_icon (info->widget, stock_id,
+				       GTK_ICON_SIZE_DND, NULL);
+
+      if (!pixbuf)
+	{
+	  g_warning ("Cannot load drag icon from stock_id %s", stock_id);
+	  return;
+	}
+    }
+  else
+    g_object_ref (pixbuf);
+
+  if (info->icon_pixbuf)
+    g_object_unref (info->icon_pixbuf);
+  info->icon_pixbuf = pixbuf;
+  info->hot_x = hot_x;
+  info->hot_y = hot_y;
+}
+
+/**
+ * gtk_drag_set_icon_pixbuf:
+ * @context: the context for a drag. (This must be called 
+ *            with a  context for the source side of a drag)
+ * @pixbuf: the #GdkPixbuf to use as the drag icon.
+ * @hot_x: the X offset within @widget of the hotspot.
+ * @hot_y: the Y offset within @widget of the hotspot.
+ * 
+ * Sets @pixbuf as the icon for a given drag.
+ **/
+void 
+gtk_drag_set_icon_pixbuf  (GdkDragContext *context,
+			   GdkPixbuf      *pixbuf,
+			   gint            hot_x,
+			   gint            hot_y)
+{
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (context->is_source);
+  g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+
+  set_icon_stock_pixbuf (context, NULL, pixbuf, hot_x, hot_y);
+}
+
+/**
+ * gtk_drag_set_icon_stock:
+ * @context: the context for a drag. (This must be called 
+ *            with a  context for the source side of a drag)
+ * @stock_id: the ID of the stock icon to use for the drag.
+ * @hot_x: the X offset within the icon of the hotspot.
+ * @hot_y: the Y offset within the icon of the hotspot.
+ * 
+ * Sets the icon for a given drag from a stock ID.
+ **/
+void 
+gtk_drag_set_icon_stock  (GdkDragContext *context,
+			  const gchar    *stock_id,
+			  gint            hot_x,
+			  gint            hot_y)
+{
+
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (context->is_source);
+  g_return_if_fail (stock_id != NULL);
+
+  set_icon_stock_pixbuf (context, stock_id, NULL, hot_x, hot_y);
+}
+
+/**
+ * gtk_drag_set_icon_pixmap:
+ * @context: the context for a drag. (This must be called 
+ *            with a  context for the source side of a drag)
+ * @colormap: the colormap of the icon 
+ * @pixmap: the image data for the icon 
+ * @mask: the transparency mask for the icon
+ * @hot_x: the X offset within @pixmap of the hotspot.
+ * @hot_y: the Y offset within @pixmap of the hotspot.
+ * 
+ * Sets @pixmap as the icon for a given drag. GTK+ retains
+ * references for the arguments, and will release them when
+ * they are no longer needed. In general, gtk_drag_set_icon_pixbuf()
+ * will be more convenient to use.
+ **/
+void 
+gtk_drag_set_icon_pixmap (GdkDragContext    *context,
+			  GdkColormap       *colormap,
+			  GdkPixmap         *pixmap,
+			  GdkBitmap         *mask,
+			  gint               hot_x,
+			  gint               hot_y)
+{
+  g_warning ("gtk_drag_set_icon_pixmap is not supported on Mac OS X");
+}
+
+/**
+ * gtk_drag_set_icon_name:
+ * @context: the context for a drag. (This must be called 
+ *            with a context for the source side of a drag)
+ * @icon_name: name of icon to use
+ * @hot_x: the X offset of the hotspot within the icon
+ * @hot_y: the Y offset of the hotspot within the icon
+ * 
+ * Sets the icon for a given drag from a named themed icon. See
+ * the docs for #GtkIconTheme for more details. Note that the
+ * size of the icon depends on the icon theme (the icon is
+ * loaded at the symbolic size #GTK_ICON_SIZE_DND), thus 
+ * @hot_x and @hot_y have to be used with care.
+ *
+ * Since: 2.8
+ **/
+void 
+gtk_drag_set_icon_name (GdkDragContext *context,
+			const gchar    *icon_name,
+			gint            hot_x,
+			gint            hot_y)
+{
+  GdkScreen *screen;
+  GtkSettings *settings;
+  GtkIconTheme *icon_theme;
+  GdkPixbuf *pixbuf;
+  gint width, height, icon_size;
+
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (context->is_source);
+  g_return_if_fail (icon_name != NULL);
+
+  screen = gdk_drawable_get_screen (context->source_window);
+  g_return_if_fail (screen != NULL);
+
+  settings = gtk_settings_get_for_screen (screen);
+  if (gtk_icon_size_lookup_for_settings (settings,
+					 GTK_ICON_SIZE_DND,
+					 &width, &height))
+    icon_size = MAX (width, height);
+  else 
+    icon_size = 32; /* default value for GTK_ICON_SIZE_DND */ 
+
+  icon_theme = gtk_icon_theme_get_for_screen (screen);
+
+  pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name,
+		  		     icon_size, 0, NULL);
+  if (pixbuf)
+    set_icon_stock_pixbuf (context, NULL, pixbuf, hot_x, hot_y);
+  else
+    g_warning ("Cannot load drag icon from icon name %s", icon_name);
+}
+
+/**
+ * gtk_drag_set_icon_default:
+ * @context: the context for a drag. (This must be called 
+             with a  context for the source side of a drag)
+ * 
+ * Sets the icon for a particular drag to the default
+ * icon.
+ **/
+void 
+gtk_drag_set_icon_default (GdkDragContext    *context)
+{
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (context->is_source);
+
+  gtk_drag_set_icon_stock (context, GTK_STOCK_DND, -2, -2);
+}
+
+void 
+gtk_drag_set_default_icon (GdkColormap   *colormap,
+			   GdkPixmap     *pixmap,
+			   GdkBitmap     *mask,
+			   gint           hot_x,
+			   gint           hot_y)
+{
+  g_warning ("gtk_drag_set_default_icon is not supported on Mac OS X.");
+}
+
+static void
+gtk_drag_source_info_destroy (GtkDragSourceInfo *info)
+{
+  if (info->icon_pixbuf)
+    g_object_unref (info->icon_pixbuf);
+
+  g_signal_emit_by_name (info->widget, "drag_end", 
+			 info->context);
+
+  if (info->widget)
+    g_object_unref (info->widget);
+
+  gtk_target_list_unref (info->target_list);
+
+  gtk_drag_clear_source_info (info->context);
+  g_object_unref (info->context);
+
+  g_free (info);
+}
+
+static void
+gtk_drag_drop_finished (GtkDragSourceInfo *info)
+{
+  gtk_drag_source_info_destroy (info);
+}
+
+/*************************************************************
+ * _gtk_drag_source_handle_event:
+ *     Called from widget event handling code on Drag events
+ *     for drag sources.
+ *
+ *   arguments:
+ *     toplevel: Toplevel widget that received the event
+ *     event:
+ *   results:
+ *************************************************************/
+
+void
+_gtk_drag_source_handle_event (GtkWidget *widget,
+			       GdkEvent  *event)
+{
+  GtkDragSourceInfo *info;
+  GdkDragContext *context;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (event != NULL);
+
+  context = event->dnd.context;
+  info = gtk_drag_get_source_info (context, FALSE);
+  if (!info)
+    return;
+
+  switch (event->type)
+    {
+    case GDK_DROP_FINISHED:
+      gtk_drag_drop_finished (info);
+      break;
+    default:
+      g_assert_not_reached ();
+    }  
+}
+
+
+gboolean
+gtk_drag_check_threshold (GtkWidget *widget,
+			  gint       start_x,
+			  gint       start_y,
+			  gint       current_x,
+			  gint       current_y)
+{
+  gint drag_threshold;
+
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
+
+  g_object_get (gtk_widget_get_settings (widget),
+		"gtk-dnd-drag-threshold", &drag_threshold,
+		NULL);
+  
+  return (ABS (current_x - start_x) > drag_threshold ||
+	  ABS (current_y - start_y) > drag_threshold);
+}
+
+#define __GTK_DND_C__
+#include "gtkaliasdef.c"