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

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
   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 #include "config.h"
  19 #include <stdlib.h>
  20
  21 #include "gdkdevice-broadway.h"
  22
  23 #include "gdkwindow.h"
  24 #include "gdkprivate-broadway.h"
  25
  26 static gboolean gdk_broadway_device_get_history (GdkDevice      *device,
  27                                                  GdkWindow      *window,
  28                                                  guint32         start,
  29                                                  guint32         stop,
  30                                                  GdkTimeCoord ***events,
  31                                                  gint           *n_events);
  32 static void gdk_broadway_device_get_state (GdkDevice       *device,
  33                                            GdkWindow       *window,
  34                                            gdouble         *axes,
  35                                            GdkModifierType *mask);
  36 static void gdk_broadway_device_set_window_cursor (GdkDevice *device,
  37                                                    GdkWindow *window,
  38                                                    GdkCursor *cursor);
  39 static void gdk_broadway_device_warp (GdkDevice *device,
  40                                       GdkScreen *screen,
  41                                       gint       x,
  42                                       gint       y);
  43 static void gdk_broadway_device_query_state (GdkDevice        *device,
  44                                              GdkWindow        *window,
  45                                              GdkWindow       **root_window,
  46                                              GdkWindow       **child_window,
  47                                              gint             *root_x,
  48                                              gint             *root_y,
  49                                              gint             *win_x,
  50                                              gint             *win_y,
  51                                              GdkModifierType  *mask);
  52 static GdkGrabStatus gdk_broadway_device_grab   (GdkDevice     *device,
  53                                                  GdkWindow     *window,
  54                                                  gboolean       owner_events,
  55                                                  GdkEventMask   event_mask,
  56                                                  GdkWindow     *confine_to,
  57                                                  GdkCursor     *cursor,
  58                                                  guint32        time_);
  59 static void          gdk_broadway_device_ungrab (GdkDevice     *device,
  60                                                  guint32        time_);
  61 static GdkWindow * gdk_broadway_device_window_at_position (GdkDevice       *device,
  62                                                            gint            *win_x,
  63                                                            gint            *win_y,
  64                                                            GdkModifierType *mask,
  65                                                            gboolean         get_toplevel);
  66 static void      gdk_broadway_device_select_window_events (GdkDevice       *device,
  67                                                            GdkWindow       *window,
  68                                                            GdkEventMask     event_mask);
  69
  70
  71 G_DEFINE_TYPE (GdkBroadwayDevice, gdk_broadway_device, GDK_TYPE_DEVICE)
  72
  73 static void
  74 gdk_broadway_device_class_init (GdkBroadwayDeviceClass *klass)
  75 {
  76   GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
  77
  78   device_class->get_history = gdk_broadway_device_get_history;
  79   device_class->get_state = gdk_broadway_device_get_state;
  80   device_class->set_window_cursor = gdk_broadway_device_set_window_cursor;
  81   device_class->warp = gdk_broadway_device_warp;
  82   device_class->query_state = gdk_broadway_device_query_state;
  83   device_class->grab = gdk_broadway_device_grab;
  84   device_class->ungrab = gdk_broadway_device_ungrab;
  85   device_class->window_at_position = gdk_broadway_device_window_at_position;
  86   device_class->select_window_events = gdk_broadway_device_select_window_events;
  87 }
  88
  89 static void
  90 gdk_broadway_device_init (GdkBroadwayDevice *device_core)
  91 {
  92   GdkDevice *device;
  93
  94   device = GDK_DEVICE (device_core);
  95
  96   _gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_X, 0, 0, 1);
  97   _gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_Y, 0, 0, 1);
  98 }
  99
 100 static gboolean
 101 gdk_broadway_device_get_history (GdkDevice      *device,
 102                                  GdkWindow      *window,
 103                                  guint32         start,
 104                                  guint32         stop,
 105                                  GdkTimeCoord ***events,
 106                                  gint           *n_events)
 107 {
 108   return FALSE;
 109 }
 110
 111 static void
 112 gdk_broadway_device_get_state (GdkDevice       *device,
 113                                GdkWindow       *window,
 114                                gdouble         *axes,
 115                                GdkModifierType *mask)
 116 {
 117   gint x_int, y_int;
 118
 119   gdk_window_get_pointer (window, &x_int, &y_int, mask);
 120
 121   if (axes)
 122     {
 123       axes[0] = x_int;
 124       axes[1] = y_int;
 125     }
 126 }
 127
 128 static void
 129 gdk_broadway_device_set_window_cursor (GdkDevice *device,
 130                                        GdkWindow *window,
 131                                        GdkCursor *cursor)
 132 {
 133 }
 134
 135 static void
 136 gdk_broadway_device_warp (GdkDevice *device,
 137                           GdkScreen *screen,
 138                           gint       x,
 139                           gint       y)
 140 {
 141 }
 142
 143 static void
 144 gdk_broadway_device_query_state (GdkDevice        *device,
 145                                  GdkWindow        *window,
 146                                  GdkWindow       **root_window,
 147                                  GdkWindow       **child_window,
 148                                  gint             *root_x,
 149                                  gint             *root_y,
 150                                  gint             *win_x,
 151                                  gint             *win_y,
 152                                  GdkModifierType  *mask)
 153 {
 154   GdkWindow *toplevel;
 155   GdkWindowImplBroadway *impl;
 156   GdkDisplay *display;
 157   GdkBroadwayDisplay *broadway_display;
 158   GdkScreen *screen;
 159   gint32 device_root_x, device_root_y;
 160   guint32 mouse_toplevel_id;
 161   GdkWindow *mouse_toplevel;
 162   guint32 mask32;
 163
 164   if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
 165     return;
 166
 167   display = gdk_device_get_display (device);
 168   broadway_display = GDK_BROADWAY_DISPLAY (display);
 169
 170   impl = GDK_WINDOW_IMPL_BROADWAY (window->impl);
 171   toplevel = impl->wrapper;
 172
 173   if (root_window)
 174     {
 175       screen = gdk_window_get_screen (window);
 176       *root_window = gdk_screen_get_root_window (screen);
 177     }
 178
 179   _gdk_broadway_server_query_mouse (broadway_display->server,
 180                                     &mouse_toplevel_id,
 181                                     &device_root_x,
 182                                     &device_root_y,
 183                                     &mask32);
 184   mouse_toplevel = g_hash_table_lookup (broadway_display->id_ht, GUINT_TO_POINTER (mouse_toplevel_id));
 185
 186   if (root_x)
 187     *root_x = device_root_x;
 188   if (root_y)
 189     *root_y = device_root_y;
 190   if (win_x)
 191     *win_x = device_root_y - toplevel->x;
 192   if (win_y)
 193     *win_y = device_root_y - toplevel->y;
 194   if (mask)
 195     *mask = mask32;
 196   if (child_window)
 197     {
 198       if (gdk_window_get_window_type (toplevel) == GDK_WINDOW_ROOT)
 199         {
 200           *child_window = mouse_toplevel;
 201           if (*child_window == NULL)
 202             *child_window = toplevel;
 203         }
 204       else
 205         {
 206           /* No native children */
 207           *child_window = toplevel;
 208         }
 209     }
 210
 211   return;
 212 }
 213
 214 void
 215 _gdk_broadway_window_grab_check_destroy (GdkWindow *window)
 216 {
 217   GdkDisplay *display = gdk_window_get_display (window);
 218   GdkDeviceManager *device_manager;
 219   GdkDeviceGrabInfo *grab;
 220   GList *devices, *d;
 221
 222   device_manager = gdk_display_get_device_manager (display);
 223
 224   /* Get all devices */
 225   devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
 226
 227   for (d = devices; d; d = d->next)
 228     {
 229       /* Make sure there is no lasting grab in this native window */
 230       grab = _gdk_display_get_last_device_grab (display, d->data);
 231
 232       if (grab && grab->native_window == window)
 233         {
 234           grab->serial_end = grab->serial_start;
 235           grab->implicit_ungrab = TRUE;
 236         }
 237
 238     }
 239
 240   g_list_free (devices);
 241 }
 242
 243
 244 static GdkGrabStatus
 245 gdk_broadway_device_grab (GdkDevice    *device,
 246                           GdkWindow    *window,
 247                           gboolean      owner_events,
 248                           GdkEventMask  event_mask,
 249                           GdkWindow    *confine_to,
 250                           GdkCursor    *cursor,
 251                           guint32       time_)
 252 {
 253   GdkDisplay *display;
 254   GdkBroadwayDisplay *broadway_display;
 255
 256   display = gdk_device_get_display (device);
 257   broadway_display = GDK_BROADWAY_DISPLAY (display);
 258
 259   if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
 260     {
 261       /* Device is a keyboard */
 262       return GDK_GRAB_SUCCESS;
 263     }
 264   else
 265     {
 266       /* Device is a pointer */
 267       return _gdk_broadway_server_grab_pointer (broadway_display->server,
 268                                                 GDK_WINDOW_IMPL_BROADWAY (window->impl)->id,
 269                                                 owner_events,
 270                                                 event_mask,
 271                                                 time_);
 272     }
 273 }
 274
 275 #define TIME_IS_LATER(time1, time2)                        \
 276   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
 277     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
 278   )
 279
 280 static void
 281 gdk_broadway_device_ungrab (GdkDevice *device,
 282                             guint32    time_)
 283 {
 284   GdkDisplay *display;
 285   GdkBroadwayDisplay *broadway_display;
 286   GdkDeviceGrabInfo *grab;
 287   guint32 serial;
 288
 289   display = gdk_device_get_display (device);
 290   broadway_display = GDK_BROADWAY_DISPLAY (display);
 291
 292   if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
 293     {
 294       /* Device is a keyboard */
 295     }
 296   else
 297     {
 298       /* Device is a pointer */
 299       serial = _gdk_broadway_server_ungrab_pointer (broadway_display->server, time_);
 300
 301       if (serial != 0)
 302         {
 303           grab = _gdk_display_get_last_device_grab (display, device);
 304           if (grab &&
 305               (time_ == GDK_CURRENT_TIME ||
 306                grab->time == GDK_CURRENT_TIME ||
 307                !TIME_IS_LATER (grab->time, time_)))
 308             grab->serial_end = serial;
 309         }
 310     }
 311 }
 312
 313 static GdkWindow *
 314 gdk_broadway_device_window_at_position (GdkDevice       *device,
 315                                         gint            *win_x,
 316                                         gint            *win_y,
 317                                         GdkModifierType *mask,
 318                                         gboolean         get_toplevel)
 319 {
 320   GdkScreen *screen;
 321   GdkWindow *root_window;
 322   GdkWindow *window;
 323
 324   screen = gdk_screen_get_default ();
 325   root_window = gdk_screen_get_root_window (screen);
 326
 327   gdk_broadway_device_query_state (device, root_window, NULL, &window, NULL, NULL, win_x, win_y, mask);
 328
 329   return window;
 330 }
 331
 332 static void
 333 gdk_broadway_device_select_window_events (GdkDevice    *device,
 334                                           GdkWindow    *window,
 335                                           GdkEventMask  event_mask)
 336 {
 337 }