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, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "config.h"
  28
  29 #include "gdkdndprivate.h"
  30
  31 #include "gdkinternals.h"
  32 #include "gdkproperty.h"
  33 #include "gdkprivate-broadway.h"
  34 #include "gdkinternals.h"
  35 #include "gdkscreen-broadway.h"
  36 #include "gdkdisplay-broadway.h"
  37
  38 #include <string.h>
  39
  40 #define GDK_TYPE_BROADWAY_DRAG_CONTEXT              (gdk_broadway_drag_context_get_type ())
  41 #define GDK_BROADWAY_DRAG_CONTEXT(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContext))
  42 #define GDK_BROADWAY_DRAG_CONTEXT_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContextClass))
  43 #define GDK_IS_BROADWAY_DRAG_CONTEXT(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_BROADWAY_DRAG_CONTEXT))
  44 #define GDK_IS_BROADWAY_DRAG_CONTEXT_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_BROADWAY_DRAG_CONTEXT))
  45 #define GDK_BROADWAY_DRAG_CONTEXT_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_BROADWAY_DRAG_CONTEXT, GdkBroadwayDragContextClass))
  46
  47 #ifdef GDK_COMPILATION
  48 typedef struct _GdkBroadwayDragContext GdkBroadwayDragContext;
  49 #else
  50 typedef GdkDragContext GdkBroadwayDragContext;
  51 #endif
  52 typedef struct _GdkBroadwayDragContextClass GdkBroadwayDragContextClass;
  53
  54 GType     gdk_broadway_drag_context_get_type (void);
  55
  56 struct _GdkBroadwayDragContext {
  57   GdkDragContext context;
  58 };
  59
  60 struct _GdkBroadwayDragContextClass
  61 {
  62   GdkDragContextClass parent_class;
  63 };
  64
  65 static void gdk_broadway_drag_context_finalize (GObject *object);
  66
  67 static GList *contexts;
  68
  69 G_DEFINE_TYPE (GdkBroadwayDragContext, gdk_broadway_drag_context, GDK_TYPE_DRAG_CONTEXT)
  70
  71 static void
  72 gdk_broadway_drag_context_init (GdkBroadwayDragContext *dragcontext)
  73 {
  74   contexts = g_list_prepend (contexts, dragcontext);
  75 }
  76
  77 static void
  78 gdk_broadway_drag_context_finalize (GObject *object)
  79 {
  80   GdkDragContext *context = GDK_DRAG_CONTEXT (object);
  81
  82   contexts = g_list_remove (contexts, context);
  83
  84   G_OBJECT_CLASS (gdk_broadway_drag_context_parent_class)->finalize (object);
  85 }
  86
  87 /* Drag Contexts */
  88
  89 GdkDragContext *
  90 _gdk_broadway_window_drag_begin (GdkWindow *window,
  91                                  GdkDevice *device,
  92                                  GList     *targets)
  93 {
  94   GdkDragContext *new_context;
  95
  96   g_return_val_if_fail (window != NULL, NULL);
  97   g_return_val_if_fail (GDK_WINDOW_IS_BROADWAY (window), NULL);
  98
  99   new_context = g_object_new (GDK_TYPE_BROADWAY_DRAG_CONTEXT,
 100                               NULL);
 101
 102   return new_context;
 103 }
 104
 105 GdkDragProtocol
 106 _gdk_broadway_window_get_drag_protocol (GdkWindow *window,
 107                                         GdkWindow **target)
 108 {
 109   return GDK_DRAG_PROTO_NONE;
 110 }
 111
 112 static GdkWindow *
 113 gdk_broadway_drag_context_find_window (GdkDragContext  *context,
 114                                        GdkWindow       *drag_window,
 115                                        GdkScreen       *screen,
 116                                        gint             x_root,
 117                                        gint             y_root,
 118                                        GdkDragProtocol *protocol)
 119 {
 120   g_return_val_if_fail (context != NULL, NULL);
 121   return NULL;
 122 }
 123
 124 static gboolean
 125 gdk_broadway_drag_context_drag_motion (GdkDragContext *context,
 126                                        GdkWindow      *dest_window,
 127                                        GdkDragProtocol protocol,
 128                                        gint            x_root,
 129                                        gint            y_root,
 130                                        GdkDragAction   suggested_action,
 131                                        GdkDragAction   possible_actions,
 132                                        guint32         time)
 133 {
 134   g_return_val_if_fail (context != NULL, FALSE);
 135   g_return_val_if_fail (dest_window == NULL || GDK_WINDOW_IS_BROADWAY (dest_window), FALSE);
 136
 137   return FALSE;
 138 }
 139
 140 static void
 141 gdk_broadway_drag_context_drag_drop (GdkDragContext *context,
 142                                      guint32         time)
 143 {
 144   g_return_if_fail (context != NULL);
 145 }
 146
 147 static void
 148 gdk_broadway_drag_context_drag_abort (GdkDragContext *context,
 149                                       guint32         time)
 150 {
 151   g_return_if_fail (context != NULL);
 152 }
 153
 154 /* Destination side */
 155
 156 static void
 157 gdk_broadway_drag_context_drag_status (GdkDragContext   *context,
 158                                        GdkDragAction     action,
 159                                        guint32           time)
 160 {
 161   g_return_if_fail (context != NULL);
 162 }
 163
 164 static void
 165 gdk_broadway_drag_context_drop_reply (GdkDragContext   *context,
 166                                       gboolean          ok,
 167                                       guint32           time)
 168 {
 169   g_return_if_fail (context != NULL);
 170 }
 171
 172 static void
 173 gdk_broadway_drag_context_drop_finish (GdkDragContext   *context,
 174                                        gboolean          success,
 175                                        guint32           time)
 176 {
 177   g_return_if_fail (context != NULL);
 178 }
 179
 180 void
 181 _gdk_broadway_window_register_dnd (GdkWindow      *window)
 182 {
 183 }
 184
 185 static GdkAtom
 186 gdk_broadway_drag_context_get_selection (GdkDragContext *context)
 187 {
 188   g_return_val_if_fail (context != NULL, GDK_NONE);
 189
 190   return GDK_NONE;
 191 }
 192
 193 static gboolean
 194 gdk_broadway_drag_context_drop_status (GdkDragContext *context)
 195 {
 196   g_return_val_if_fail (context != NULL, FALSE);
 197
 198   return FALSE;
 199 }
 200
 201 void
 202 _gdk_broadway_display_init_dnd (GdkDisplay *display)
 203 {
 204 }
 205
 206 static void
 207 gdk_broadway_drag_context_class_init (GdkBroadwayDragContextClass *klass)
 208 {
 209   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 210   GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
 211
 212   object_class->finalize = gdk_broadway_drag_context_finalize;
 213
 214   context_class->find_window = gdk_broadway_drag_context_find_window;
 215   context_class->drag_status = gdk_broadway_drag_context_drag_status;
 216   context_class->drag_motion = gdk_broadway_drag_context_drag_motion;
 217   context_class->drag_abort = gdk_broadway_drag_context_drag_abort;
 218   context_class->drag_drop = gdk_broadway_drag_context_drag_drop;
 219   context_class->drop_reply = gdk_broadway_drag_context_drop_reply;
 220   context_class->drop_finish = gdk_broadway_drag_context_drop_finish;
 221   context_class->drop_status = gdk_broadway_drag_context_drop_status;
 222   context_class->get_selection = gdk_broadway_drag_context_get_selection;
 223 }