Pileus Git - ~andy/gtk/blob - gdk/broadway/gdkdnd-broadway.c

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GTK+ Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #include "config.h"
  26
  27 #include "gdkdndprivate.h"
  28
  29 #include "gdkinternals.h"
  30 #include "gdkproperty.h"
  31 #include "gdkprivate-broadway.h"
  32 #include "gdkinternals.h"
  33 #include "gdkscreen-broadway.h"
  34 #include "gdkdisplay-broadway.h"
  35
  36 #include <string.h>
  37
  38 #define GDK_TYPE_BROADWAY_DRAG_CONTEXT              (gdk_broadway_drag_context_get_type ())
  39 #define GDK_BROADWAY_DRAG_CONTEXT(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContext))
  40 #define GDK_BROADWAY_DRAG_CONTEXT_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContextClass))
  41 #define GDK_IS_BROADWAY_DRAG_CONTEXT(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_BROADWAY_DRAG_CONTEXT))
  42 #define GDK_IS_BROADWAY_DRAG_CONTEXT_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_BROADWAY_DRAG_CONTEXT))
  43 #define GDK_BROADWAY_DRAG_CONTEXT_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContextClass))
  44
  45 #ifdef GDK_COMPILATION
  46 typedef struct _GdkBroadwayDragContext GdkBroadwayDragContext;
  47 #else
  48 typedef GdkDragContext GdkBroadwayDragContext;
  49 #endif
  50 typedef struct _GdkBroadwayDragContextClass GdkBroadwayDragContextClass;
  51
  52 GType     gdk_broadway_drag_context_get_type (void);
  53
  54 struct _GdkBroadwayDragContext {
  55   GdkDragContext context;
  56 };
  57
  58 struct _GdkBroadwayDragContextClass
  59 {
  60   GdkDragContextClass parent_class;
  61 };
  62
  63 static void gdk_broadway_drag_context_finalize (GObject *object);
  64
  65 static GList *contexts;
  66
  67 G_DEFINE_TYPE (GdkBroadwayDragContext, gdk_broadway_drag_context, GDK_TYPE_DRAG_CONTEXT)
  68
  69 static void
  70 gdk_broadway_drag_context_init (GdkBroadwayDragContext *dragcontext)
  71 {
  72   contexts = g_list_prepend (contexts, dragcontext);
  73 }
  74
  75 static void
  76 gdk_broadway_drag_context_finalize (GObject *object)
  77 {
  78   GdkDragContext *context = GDK_DRAG_CONTEXT (object);
  79
  80   contexts = g_list_remove (contexts, context);
  81
  82   G_OBJECT_CLASS (gdk_broadway_drag_context_parent_class)->finalize (object);
  83 }
  84
  85 /* Drag Contexts */
  86
  87 GdkDragContext *
  88 _gdk_broadway_window_drag_begin (GdkWindow *window,
  89                                  GdkDevice *device,
  90                                  GList     *targets)
  91 {
  92   GdkDragContext *new_context;
  93
  94   g_return_val_if_fail (window != NULL, NULL);
  95   g_return_val_if_fail (GDK_WINDOW_IS_BROADWAY (window), NULL);
  96
  97   new_context = g_object_new (GDK_TYPE_BROADWAY_DRAG_CONTEXT,
  98                               NULL);
  99
 100   return new_context;
 101 }
 102
 103 GdkDragProtocol
 104 _gdk_broadway_window_get_drag_protocol (GdkWindow *window,
 105                                         GdkWindow **target)
 106 {
 107   return GDK_DRAG_PROTO_NONE;
 108 }
 109
 110 static GdkWindow *
 111 gdk_broadway_drag_context_find_window (GdkDragContext  *context,
 112                                        GdkWindow       *drag_window,
 113                                        GdkScreen       *screen,
 114                                        gint             x_root,
 115                                        gint             y_root,
 116                                        GdkDragProtocol *protocol)
 117 {
 118   g_return_val_if_fail (context != NULL, NULL);
 119   return NULL;
 120 }
 121
 122 static gboolean
 123 gdk_broadway_drag_context_drag_motion (GdkDragContext *context,
 124                                        GdkWindow      *dest_window,
 125                                        GdkDragProtocol protocol,
 126                                        gint            x_root,
 127                                        gint            y_root,
 128                                        GdkDragAction   suggested_action,
 129                                        GdkDragAction   possible_actions,
 130                                        guint32         time)
 131 {
 132   g_return_val_if_fail (context != NULL, FALSE);
 133   g_return_val_if_fail (dest_window == NULL || GDK_WINDOW_IS_BROADWAY (dest_window), FALSE);
 134
 135   return FALSE;
 136 }
 137
 138 static void
 139 gdk_broadway_drag_context_drag_drop (GdkDragContext *context,
 140                                      guint32         time)
 141 {
 142   g_return_if_fail (context != NULL);
 143 }
 144
 145 static void
 146 gdk_broadway_drag_context_drag_abort (GdkDragContext *context,
 147                                       guint32         time)
 148 {
 149   g_return_if_fail (context != NULL);
 150 }
 151
 152 /* Destination side */
 153
 154 static void
 155 gdk_broadway_drag_context_drag_status (GdkDragContext   *context,
 156                                        GdkDragAction     action,
 157                                        guint32           time)
 158 {
 159   g_return_if_fail (context != NULL);
 160 }
 161
 162 static void
 163 gdk_broadway_drag_context_drop_reply (GdkDragContext   *context,
 164                                       gboolean          ok,
 165                                       guint32           time)
 166 {
 167   g_return_if_fail (context != NULL);
 168 }
 169
 170 static void
 171 gdk_broadway_drag_context_drop_finish (GdkDragContext   *context,
 172                                        gboolean          success,
 173                                        guint32           time)
 174 {
 175   g_return_if_fail (context != NULL);
 176 }
 177
 178 void
 179 _gdk_broadway_window_register_dnd (GdkWindow      *window)
 180 {
 181 }
 182
 183 static GdkAtom
 184 gdk_broadway_drag_context_get_selection (GdkDragContext *context)
 185 {
 186   g_return_val_if_fail (context != NULL, GDK_NONE);
 187
 188   return GDK_NONE;
 189 }
 190
 191 static gboolean
 192 gdk_broadway_drag_context_drop_status (GdkDragContext *context)
 193 {
 194   g_return_val_if_fail (context != NULL, FALSE);
 195
 196   return FALSE;
 197 }
 198
 199 void
 200 _gdk_broadway_display_init_dnd (GdkDisplay *display)
 201 {
 202 }
 203
 204 static void
 205 gdk_broadway_drag_context_class_init (GdkBroadwayDragContextClass *klass)
 206 {
 207   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 208   GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
 209
 210   object_class->finalize = gdk_broadway_drag_context_finalize;
 211
 212   context_class->find_window = gdk_broadway_drag_context_find_window;
 213   context_class->drag_status = gdk_broadway_drag_context_drag_status;
 214   context_class->drag_motion = gdk_broadway_drag_context_drag_motion;
 215   context_class->drag_abort = gdk_broadway_drag_context_drag_abort;
 216   context_class->drag_drop = gdk_broadway_drag_context_drag_drop;
 217   context_class->drop_reply = gdk_broadway_drag_context_drop_reply;
 218   context_class->drop_finish = gdk_broadway_drag_context_drop_finish;
 219   context_class->drop_status = gdk_broadway_drag_context_drop_status;
 220   context_class->get_selection = gdk_broadway_drag_context_get_selection;
 221 }