Pileus Git - ~andy/gtk/blob - gdk/wayland/gdkdisplaymanager-wayland.c

   1 /* GDK - The GIMP Drawing Kit
   2  * gdkdisplaymanager-wayland.c
   3  *
   4  * Copyright 2010 Red Hat, Inc.
   5  *
   6  * Author: Matthias clasen
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "config.h"
  23
  24 #include "gdkdisplaymanagerprivate.h"
  25 #include "gdkdisplay-wayland.h"
  26 #include "gdkprivate-wayland.h"
  27
  28 #include "gdkinternals.h"
  29
  30 #include <X11/extensions/XKBcommon.h>
  31
  32 typedef struct _GdkWaylandDisplayManager GdkWaylandDisplayManager;
  33 typedef struct _GdkWaylandDisplayManagerClass GdkWaylandDisplayManagerClass;
  34
  35 #define GDK_TYPE_WAYLAND_DISPLAY_MANAGER              (gdk_wayland_display_manager_get_type())
  36 #define GDK_WAYLAND_DISPLAY_MANAGER(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_DISPLAY_MANAGER, GdkWaylandDisplayManager))
  37 #define GDK_WAYLAND_DISPLAY_MANAGER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WAYLAND_DISPLAY_MANAGER, GdkWaylandDisplayManagerClass))
  38 #define GDK_IS_WAYLAND_DISPLAY_MANAGER(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_DISPLAY_MANAGER))
  39 #define GDK_IS_WAYLAND_DISPLAY_MANAGER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WAYLAND_DISPLAY_MANAGER))
  40 #define GDK_WAYLAND_DISPLAY_MANAGER_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WAYLAND_DISPLAY_MANAGER, GdkWaylandDisplayManagerClass))
  41
  42 struct _GdkWaylandDisplayManager
  43 {
  44   GdkDisplayManager parent;
  45
  46   GdkDisplay *default_display;
  47   GSList *displays;
  48
  49   GHashTable *name_to_atoms;
  50   guint next_atom;
  51 };
  52
  53 struct _GdkWaylandDisplayManagerClass
  54 {
  55   GdkDisplayManagerClass parent_class;
  56 };
  57
  58 G_DEFINE_TYPE (GdkWaylandDisplayManager, gdk_wayland_display_manager, GDK_TYPE_DISPLAY_MANAGER)
  59
  60 static void
  61 gdk_wayland_display_manager_finalize (GObject *object)
  62 {
  63   g_error ("A GdkWaylandDisplayManager object was finalized. This should not happen");
  64   G_OBJECT_CLASS (gdk_wayland_display_manager_parent_class)->finalize (object);
  65 }
  66
  67 static GdkDisplay *
  68 gdk_wayland_display_manager_open_display (GdkDisplayManager *manager,
  69                                           const gchar       *name)
  70 {
  71   return _gdk_wayland_display_open (name);
  72 }
  73
  74 static GSList *
  75 gdk_wayland_display_manager_list_displays (GdkDisplayManager *manager)
  76 {
  77   return g_slist_copy (GDK_WAYLAND_DISPLAY_MANAGER (manager)->displays);
  78 }
  79
  80 static void
  81 gdk_wayland_display_manager_set_default_display (GdkDisplayManager *manager,
  82                                                  GdkDisplay        *display)
  83 {
  84   GDK_WAYLAND_DISPLAY_MANAGER (manager)->default_display = display;
  85
  86   _gdk_wayland_display_make_default (display);
  87 }
  88
  89 static GdkDisplay *
  90 gdk_wayland_display_manager_get_default_display (GdkDisplayManager *manager)
  91 {
  92   return GDK_WAYLAND_DISPLAY_MANAGER (manager)->default_display;
  93 }
  94
  95 static GdkAtom
  96 gdk_wayland_display_manager_atom_intern (GdkDisplayManager *manager_in,
  97                                          const gchar       *atom_name,
  98                                          gboolean           dup)
  99 {
 100   GdkWaylandDisplayManager *manager = GDK_WAYLAND_DISPLAY_MANAGER (manager_in);
 101   GdkAtom atom;
 102   gpointer data;
 103   const gchar *atom_name_intern;
 104
 105   atom_name_intern = g_intern_string (atom_name);
 106   data = g_hash_table_lookup (manager->name_to_atoms, atom_name_intern);
 107
 108   if (data)
 109     {
 110       atom = GDK_POINTER_TO_ATOM (data);
 111       return atom;
 112     }
 113
 114   atom = _GDK_MAKE_ATOM (manager->next_atom);
 115
 116   g_hash_table_insert (manager->name_to_atoms,
 117                        (gchar *)atom_name_intern,
 118                        GDK_ATOM_TO_POINTER (atom));
 119   manager->next_atom++;
 120
 121   return atom;
 122 }
 123
 124 static gchar *
 125 gdk_wayland_display_manager_get_atom_name (GdkDisplayManager *manager_in,
 126                                            GdkAtom            atom)
 127 {
 128   GdkWaylandDisplayManager *manager = GDK_WAYLAND_DISPLAY_MANAGER (manager_in);
 129   GHashTableIter iter;
 130   gpointer key, value;
 131
 132   g_hash_table_iter_init (&iter, manager->name_to_atoms);
 133
 134   while (g_hash_table_iter_next (&iter, &key, &value))
 135     {
 136       if (GDK_POINTER_TO_ATOM (value) == atom)
 137         return g_strdup (key);
 138     }
 139
 140   return NULL;
 141 }
 142
 143 static guint
 144 gdk_wayland_display_manager_lookup_keyval (GdkDisplayManager *manager,
 145                                            const gchar       *keyval_name)
 146 {
 147   g_return_val_if_fail (keyval_name != NULL, 0);
 148
 149   return xkb_string_to_keysym(keyval_name);
 150 }
 151
 152 static gchar *
 153 gdk_wayland_display_manager_get_keyval_name (GdkDisplayManager *manager,
 154                                              guint              keyval)
 155 {
 156   static char buf[128];
 157
 158   switch (keyval)
 159     {
 160     case GDK_KEY_Page_Up:
 161       return "Page_Up";
 162     case GDK_KEY_Page_Down:
 163       return "Page_Down";
 164     case GDK_KEY_KP_Page_Up:
 165       return "KP_Page_Up";
 166     case GDK_KEY_KP_Page_Down:
 167       return "KP_Page_Down";
 168     }
 169
 170   xkb_keysym_to_string(keyval, buf, sizeof buf);
 171
 172   return buf;
 173 }
 174
 175 static void
 176 gdk_wayland_display_manager_class_init (GdkWaylandDisplayManagerClass *class)
 177 {
 178   GObjectClass *object_class = G_OBJECT_CLASS (class);
 179   GdkDisplayManagerClass *manager_class = GDK_DISPLAY_MANAGER_CLASS (class);
 180
 181   object_class->finalize = gdk_wayland_display_manager_finalize;
 182
 183   manager_class->open_display = gdk_wayland_display_manager_open_display;
 184   manager_class->list_displays = gdk_wayland_display_manager_list_displays;
 185   manager_class->set_default_display = gdk_wayland_display_manager_set_default_display;
 186   manager_class->get_default_display = gdk_wayland_display_manager_get_default_display;
 187   manager_class->atom_intern = gdk_wayland_display_manager_atom_intern;
 188   manager_class->get_atom_name = gdk_wayland_display_manager_get_atom_name;
 189   manager_class->lookup_keyval = gdk_wayland_display_manager_lookup_keyval;
 190   manager_class->get_keyval_name = gdk_wayland_display_manager_get_keyval_name;
 191 }
 192
 193 struct {
 194   const gchar *name;
 195   guint atom_id;
 196 } predefined_atoms[] = {
 197       { "NONE", 0 },
 198       { "PRIMARY", 1 },
 199       { "SECONDARY", 2 },
 200       { "ATOM", 4 },
 201       { "BITMAP", 5 },
 202       { "COLORMAP", 7 },
 203       { "DRAWABLE", 17 },
 204       { "INTEGER", 19 },
 205       { "PIXMAP", 20 },
 206       { "STRING", 31 },
 207       { "WINDOW", 33 },
 208       { "CLIPBOARD", 69 },
 209 };
 210
 211 static void
 212 gdk_wayland_display_manager_init (GdkWaylandDisplayManager *manager)
 213 {
 214   gint i;
 215
 216   manager->name_to_atoms = g_hash_table_new (NULL, NULL);
 217
 218   for (i = 0; i < G_N_ELEMENTS (predefined_atoms); i++)
 219     {
 220       GdkAtom atom;
 221       const gchar *atom_name = predefined_atoms[i].name;
 222
 223       atom = _GDK_MAKE_ATOM (predefined_atoms[i].atom_id);
 224       g_hash_table_insert (manager->name_to_atoms,
 225                            (gchar *)g_intern_static_string (atom_name),
 226                            GDK_ATOM_TO_POINTER (atom));
 227     }
 228
 229   manager->next_atom =
 230     predefined_atoms[G_N_ELEMENTS (predefined_atoms) - 1].atom_id + 1;
 231 }
 232
 233 void
 234 _gdk_wayland_display_manager_add_display (GdkDisplayManager *manager,
 235                                           GdkDisplay        *display)
 236 {
 237   GdkWaylandDisplayManager *manager_wayland = GDK_WAYLAND_DISPLAY_MANAGER (manager);
 238
 239   if (manager_wayland->displays == NULL)
 240     gdk_display_manager_set_default_display (manager, display);
 241
 242   manager_wayland->displays = g_slist_prepend (manager_wayland->displays, display);
 243 }
 244
 245 void
 246 _gdk_wayland_display_manager_remove_display (GdkDisplayManager *manager,
 247                                              GdkDisplay        *display)
 248 {
 249   GdkWaylandDisplayManager *manager_wayland = GDK_WAYLAND_DISPLAY_MANAGER (manager);
 250
 251   manager_wayland->displays = g_slist_remove (manager_wayland->displays, display);
 252
 253   if (manager_wayland->default_display == display)
 254     {
 255       if (manager_wayland->displays)
 256         gdk_display_manager_set_default_display (manager, manager_wayland->displays->data);
 257       else
 258         gdk_display_manager_set_default_display (manager, NULL);
 259     }
 260 }