gdkdisplay.c 53.8 KB
Newer Older
Cody Russell's avatar
Cody Russell committed
1
/* GDK - The GIMP Drawing Kit
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
 * gdkdisplay.c
 * 
 * Copyright 2001 Sun Microsystems Inc. 
 *
 * Erwann Chenede <erwann.chenede@sun.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library 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.
 */

24
#include "config.h"
25
#include <math.h>
26
#include <glib.h>
27
#include "gdk.h"		/* gdk_event_send_client_message() */
28
#include "gdkdisplay.h"
29
#include "gdkwindowimpl.h"
30
#include "gdkinternals.h"
31
#include "gdkmarshalers.h"
32
#include "gdkscreen.h"
33
#include "gdkalias.h"
34

35
enum {
36
  OPENED,
37 38 39 40
  CLOSED,
  LAST_SIGNAL
};

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73
static void gdk_display_dispose     (GObject         *object);
static void gdk_display_finalize    (GObject         *object);

static void        multihead_get_device_state           (GdkDisplay       *display,
                                                         GdkDevice        *device,
                                                         GdkScreen       **screen,
                                                         gint             *x,
                                                         gint             *y,
                                                         GdkModifierType  *mask);
static GdkWindow * multihead_window_get_device_position (GdkDisplay       *display,
                                                         GdkDevice        *device,
                                                         GdkWindow        *window,
                                                         gint             *x,
                                                         gint             *y,
                                                         GdkModifierType  *mask);
static GdkWindow * multihead_window_at_device_position  (GdkDisplay       *display,
                                                         GdkDevice        *device,
                                                         gint             *win_x,
                                                         gint             *win_y);

static void        multihead_default_get_pointer        (GdkDisplay       *display,
                                                         GdkScreen       **screen,
                                                         gint             *x,
                                                         gint             *y,
                                                         GdkModifierType  *mask);
static GdkWindow * multihead_default_window_get_pointer (GdkDisplay      *display,
                                                         GdkWindow       *window,
                                                         gint            *x,
                                                         gint            *y,
                                                         GdkModifierType *mask);
static GdkWindow * multihead_default_window_at_pointer  (GdkDisplay      *display,
                                                         gint            *win_x,
                                                         gint            *win_y);
74

75

Matthias Clasen's avatar
Matthias Clasen committed
76
static void       singlehead_get_pointer (GdkDisplay       *display,
77 78 79 80
					  GdkScreen       **screen,
					  gint             *x,
					  gint             *y,
					  GdkModifierType  *mask);
Matthias Clasen's avatar
Matthias Clasen committed
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
static GdkWindow* singlehead_window_get_pointer (GdkDisplay       *display,
						 GdkWindow        *window,
						 gint             *x,
						 gint             *y,
						 GdkModifierType  *mask);
static GdkWindow* singlehead_window_at_pointer  (GdkDisplay       *display,
						 gint             *win_x,
						 gint             *win_y);

static GdkWindow* singlehead_default_window_get_pointer (GdkWindow       *window,
							 gint            *x,
							 gint            *y,
							 GdkModifierType *mask);
static GdkWindow* singlehead_default_window_at_pointer  (GdkScreen       *screen,
							 gint            *win_x,
							 gint            *win_y);
97 98 99 100 101 102 103 104 105 106
static GdkWindow *gdk_window_real_window_get_device_position     (GdkDisplay       *display,
                                                                  GdkDevice        *device,
                                                                  GdkWindow        *window,
                                                                  gint             *x,
                                                                  gint             *y,
                                                                  GdkModifierType  *mask);
static GdkWindow *gdk_display_real_get_window_at_device_position (GdkDisplay       *display,
                                                                  GdkDevice        *device,
                                                                  gint             *win_x,
                                                                  gint             *win_y);
107

108 109
static guint signals[LAST_SIGNAL] = { 0 };

110
static char *gdk_sm_client_id;
111

112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
static const GdkDisplayDeviceHooks default_device_hooks = {
  _gdk_windowing_get_device_state,
  gdk_window_real_window_get_device_position,
  gdk_display_real_get_window_at_device_position
};

static const GdkDisplayDeviceHooks multihead_pointer_hooks = {
  multihead_get_device_state,
  multihead_window_get_device_position,
  multihead_window_at_device_position
};

static const GdkDisplayPointerHooks multihead_default_pointer_hooks = {
  multihead_default_get_pointer,
  multihead_default_window_get_pointer,
  multihead_default_window_at_pointer
128 129 130 131 132 133 134 135 136 137 138 139 140 141
};

static const GdkDisplayPointerHooks singlehead_pointer_hooks = {
  singlehead_get_pointer,
  singlehead_window_get_pointer,
  singlehead_window_at_pointer
};

static const GdkPointerHooks singlehead_default_pointer_hooks = {
  singlehead_default_window_get_pointer,
  singlehead_default_window_at_pointer
};

static const GdkPointerHooks *singlehead_current_pointer_hooks = &singlehead_default_pointer_hooks;
142
static const GdkDisplayPointerHooks *multihead_current_pointer_hooks = &multihead_default_pointer_hooks;
143

Matthias Clasen's avatar
Matthias Clasen committed
144
G_DEFINE_TYPE (GdkDisplay, gdk_display, G_TYPE_OBJECT)
145 146 147 148 149

static void
gdk_display_class_init (GdkDisplayClass *class)
{
  GObjectClass *object_class = G_OBJECT_CLASS (class);
150

151
  object_class->finalize = gdk_display_finalize;
152
  object_class->dispose = gdk_display_dispose;
153

154 155 156 157 158 159 160 161 162 163 164 165 166
  /**
   * GdkDisplay::opened.
   * @display: the object on which the signal is emitted
   *
   */
  signals[OPENED] =
    g_signal_new (g_intern_static_string ("opened"),
		  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  0, NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

167 168 169 170 171 172 173 174 175 176
  /**
   * GdkDisplay::closed:
   * @display: the object on which the signal is emitted
   * @is_error: %TRUE if the display was closed due to an error
   *
   * The ::closed signal is emitted when the connection to the windowing
   * system for @display is closed.
   *
   * Since: 2.2
   */   
177
  signals[CLOSED] =
Matthias Clasen's avatar
Matthias Clasen committed
178
    g_signal_new (g_intern_static_string ("closed"),
179 180 181 182
		  G_OBJECT_CLASS_TYPE (object_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GdkDisplayClass, closed),
		  NULL, NULL,
Matthias Clasen's avatar
Matthias Clasen committed
183
		  _gdk_marshal_VOID__BOOLEAN,
184 185 186
		  G_TYPE_NONE,
		  1,
		  G_TYPE_BOOLEAN);
187 188
}

189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
static void
free_pointer_info (GdkPointerWindowInfo *info)
{
  g_object_unref (info->toplevel_under_pointer);
  g_slice_free (GdkPointerWindowInfo, info);
}

static void
free_device_grab (GdkDeviceGrabInfo *info)
{
  g_object_unref (info->window);
  g_object_unref (info->native_window);
  g_free (info);
}

static gboolean
free_device_grabs_foreach (gpointer key,
                           gpointer value,
                           gpointer user_data)
{
  GList *list = value;

  g_list_foreach (list, (GFunc) free_device_grab, NULL);
  g_list_free (list);

  return TRUE;
}

static void
device_removed_cb (GdkDeviceManager *device_manager,
                   GdkDevice        *device,
                   GdkDisplay       *display)
{
  g_hash_table_remove (display->multiple_click_info, device);
  g_hash_table_remove (display->device_grabs, device);
  g_hash_table_remove (display->pointers_info, device);

  /* FIXME: change core pointer and remove from device list */
}

static void
gdk_display_opened (GdkDisplay *display)
{
  GdkDeviceManager *device_manager;

  device_manager = gdk_display_get_device_manager (display);

  g_signal_connect (device_manager, "device-removed",
                    G_CALLBACK (device_removed_cb), display);
}

240 241 242 243 244 245
static void
gdk_display_init (GdkDisplay *display)
{
  _gdk_displays = g_slist_prepend (_gdk_displays, display);

  display->double_click_time = 250;
246
  display->double_click_distance = 5;
247

248 249 250 251 252 253 254 255 256 257 258 259 260 261
  display->device_hooks = &default_device_hooks;

  display->device_grabs = g_hash_table_new (NULL, NULL);
  display->motion_hint_info = g_hash_table_new_full (NULL, NULL, NULL,
                                                     (GDestroyNotify) g_free);

  display->pointers_info = g_hash_table_new_full (NULL, NULL, NULL,
                                                  (GDestroyNotify) free_pointer_info);

  display->multiple_click_info = g_hash_table_new_full (NULL, NULL, NULL,
                                                        (GDestroyNotify) g_free);

  g_signal_connect (display, "opened",
                    G_CALLBACK (gdk_display_opened), NULL);
262 263
}

264 265 266 267
static void
gdk_display_dispose (GObject *object)
{
  GdkDisplay *display = GDK_DISPLAY_OBJECT (object);
268 269 270
  GdkDeviceManager *device_manager;

  device_manager = gdk_display_get_device_manager (GDK_DISPLAY_OBJECT (object));
271 272 273 274 275 276 277 278 279

  g_list_foreach (display->queued_events, (GFunc)gdk_event_free, NULL);
  g_list_free (display->queued_events);
  display->queued_events = NULL;
  display->queued_tail = NULL;

  _gdk_displays = g_slist_remove (_gdk_displays, object);

  if (gdk_display_get_default() == display)
280 281 282 283 284 285 286 287
    {
      if (_gdk_displays)
        gdk_display_manager_set_default_display (gdk_display_manager_get(),
                                                 _gdk_displays->data);
      else
        gdk_display_manager_set_default_display (gdk_display_manager_get(),
                                                 NULL);
    }
288

289 290 291
  if (device_manager)
    g_signal_handlers_disconnect_by_func (device_manager, device_removed_cb, object);

Matthias Clasen's avatar
Matthias Clasen committed
292
  G_OBJECT_CLASS (gdk_display_parent_class)->dispose (object);
293 294
}

295 296 297
static void
gdk_display_finalize (GObject *object)
{
298 299 300 301 302 303 304 305 306 307 308 309 310
  GdkDisplay *display = GDK_DISPLAY_OBJECT (object);

  g_hash_table_foreach_remove (display->device_grabs,
                               free_device_grabs_foreach,
                               NULL);
  g_hash_table_destroy (display->device_grabs);

  g_hash_table_destroy (display->pointers_info);
  g_hash_table_destroy (display->multiple_click_info);

  if (display->device_manager)
    g_object_unref (display->device_manager);

Matthias Clasen's avatar
Matthias Clasen committed
311
  G_OBJECT_CLASS (gdk_display_parent_class)->finalize (object);
312 313 314 315 316 317
}

/**
 * gdk_display_close:
 * @display: a #GdkDisplay
 *
318
 * Closes the connection to the windowing system for the given display,
319
 * and cleans up associated resources.
Matthias Clasen's avatar
Matthias Clasen committed
320 321
 *
 * Since: 2.2
322 323 324 325 326
 */
void
gdk_display_close (GdkDisplay *display)
{
  g_return_if_fail (GDK_IS_DISPLAY (display));
327 328 329 330

  if (!display->closed)
    {
      display->closed = TRUE;
331 332
      
      g_signal_emit (display, signals[CLOSED], 0, FALSE);
333 334
      g_object_run_dispose (G_OBJECT (display));
      
335
      g_object_unref (display);
336
    }
337 338 339 340 341 342 343 344 345 346 347
}

/**
 * gdk_display_get_event:
 * @display: a #GdkDisplay
 * 
 * Gets the next #GdkEvent to be processed for @display, fetching events from the
 * windowing system if necessary.
 * 
 * Return value: the next #GdkEvent to be processed, or %NULL if no events
 * are pending. The returned #GdkEvent should be freed with gdk_event_free().
Matthias Clasen's avatar
Matthias Clasen committed
348 349
 *
 * Since: 2.2
350 351 352 353 354 355 356 357 358 359 360 361
 **/
GdkEvent*
gdk_display_get_event (GdkDisplay *display)
{
  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
  
  _gdk_events_queue (display);
  return _gdk_event_unqueue (display);
}

/**
 * gdk_display_peek_event:
Alex Larsson's avatar
Alex Larsson committed
362
 * @display: a #GdkDisplay 
363 364 365 366 367 368
 * 
 * Gets a copy of the first #GdkEvent in the @display's event queue, without
 * removing the event from the queue.  (Note that this function will
 * not get more events from the windowing system.  It only checks the events
 * that have already been moved to the GDK event queue.)
 * 
Matthias Clasen's avatar
Matthias Clasen committed
369 370
 * Return value: a copy of the first #GdkEvent on the event queue, or %NULL 
 * if no events are in the queue. The returned #GdkEvent should be freed with
371
 * gdk_event_free().
Matthias Clasen's avatar
Matthias Clasen committed
372 373
 *
 * Since: 2.2
374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
 **/
GdkEvent*
gdk_display_peek_event (GdkDisplay *display)
{
  GList *tmp_list;

  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);

  tmp_list = _gdk_event_queue_find_first (display);
  
  if (tmp_list)
    return gdk_event_copy (tmp_list->data);
  else
    return NULL;
}

/**
 * gdk_display_put_event:
 * @display: a #GdkDisplay
 * @event: a #GdkEvent.
 *
 * Appends a copy of the given event onto the front of the event
 * queue for @display.
Matthias Clasen's avatar
Matthias Clasen committed
397 398
 *
 * Since: 2.2
399 400
 **/
void
401 402
gdk_display_put_event (GdkDisplay     *display,
		       const GdkEvent *event)
403 404 405 406 407
{
  g_return_if_fail (GDK_IS_DISPLAY (display));
  g_return_if_fail (event != NULL);

  _gdk_event_queue_append (display, gdk_event_copy (event));
408 409
  /* If the main loop is blocking in a different thread, wake it up */
  g_main_context_wakeup (NULL); 
410
}
411

412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451
/**
 * gdk_display_pointer_ungrab:
 * @display: a #GdkDisplay.
 * @time_: a timestap (e.g. %GDK_CURRENT_TIME).
 *
 * Release any pointer grab.
 *
 * Since: 2.2
 *
 * Deprecated: 3.0. Use gdk_device_ungrab(), together with gdk_device_grab()
 *             instead.
 */
void
gdk_display_pointer_ungrab (GdkDisplay *display,
			    guint32     time_)
{
  GdkDeviceManager *device_manager;
  GList *devices, *dev;
  GdkDevice *device;

  g_return_if_fail (GDK_IS_DISPLAY (display));

  device_manager = gdk_display_get_device_manager (display);
  devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);

  /* FIXME: Should this be generic to all backends? */
  /* FIXME: What happens with extended devices? */
  for (dev = devices; dev; dev = dev->next)
    {
      device = dev->data;

      if (device->source != GDK_SOURCE_MOUSE)
        continue;

      gdk_device_ungrab (device, time_);
    }

  g_list_free (devices);
}

452 453
/**
 * gdk_pointer_ungrab:
Matthias Clasen's avatar
Matthias Clasen committed
454 455
 * @time_: a timestamp from a #GdkEvent, or %GDK_CURRENT_TIME if no 
 *  timestamp is available.
456
 *
457 458
 * Ungrabs the pointer on the default display, if it is grabbed by this 
 * application.
459 460 461
 *
 * Deprecated: 3.0. Use gdk_device_ungrab(), together with gdk_device_grab()
 *             instead.
462 463 464 465
 **/
void
gdk_pointer_ungrab (guint32 time)
{
Owen Taylor's avatar
Owen Taylor committed
466
  gdk_display_pointer_ungrab (gdk_display_get_default (), time);
467 468 469 470 471
}

/**
 * gdk_pointer_is_grabbed:
 * 
472 473
 * Returns %TRUE if the pointer on the default display is currently 
 * grabbed by this application.
474 475 476
 *
 * Note that this does not take the inmplicit pointer grab on button
 * presses into account.
477 478 479 480
 *
 * Return value: %TRUE if the pointer is currently grabbed by this application.
 *
 * Deprecated: 3.0. Use gdk_display_device_is_grabbed() instead.
481 482 483 484
 **/
gboolean
gdk_pointer_is_grabbed (void)
{
Owen Taylor's avatar
Owen Taylor committed
485
  return gdk_display_pointer_is_grabbed (gdk_display_get_default ());
486 487
}

488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527
/**
 * gdk_display_keyboard_ungrab:
 * @display: a #GdkDisplay.
 * @time_: a timestap (e.g #GDK_CURRENT_TIME).
 *
 * Release any keyboard grab
 *
 * Since: 2.2
 *
 * Deprecated: 3.0. Use gdk_device_ungrab(), together with gdk_device_grab()
 *             instead.
 */
void
gdk_display_keyboard_ungrab (GdkDisplay *display,
			     guint32     time)
{
  GdkDeviceManager *device_manager;
  GList *devices, *dev;
  GdkDevice *device;

  g_return_if_fail (GDK_IS_DISPLAY (display));

  device_manager = gdk_display_get_device_manager (display);
  devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);

  /* FIXME: Should this be generic to all backends? */
  /* FIXME: What happens with extended devices? */
  for (dev = devices; dev; dev = dev->next)
    {
      device = dev->data;

      if (device->source != GDK_SOURCE_KEYBOARD)
        continue;

      gdk_device_ungrab (device, time);
    }

  g_list_free (devices);
}

528 529
/**
 * gdk_keyboard_ungrab:
530
 * @time_: a timestamp from a #GdkEvent, or %GDK_CURRENT_TIME if no
531 532
 *        timestamp is available.
 * 
533 534
 * Ungrabs the keyboard on the default display, if it is grabbed by this 
 * application.
535 536 537
 *
 * Deprecated: 3.0. Use gdk_device_ungrab(), together with gdk_device_grab()
 *             instead.
538 539 540 541
 **/
void
gdk_keyboard_ungrab (guint32 time)
{
Owen Taylor's avatar
Owen Taylor committed
542
  gdk_display_keyboard_ungrab (gdk_display_get_default (), time);
543 544 545 546 547
}

/**
 * gdk_beep:
 * 
548
 * Emits a short beep on the default display.
549 550 551 552
 **/
void
gdk_beep (void)
{
Owen Taylor's avatar
Owen Taylor committed
553
  gdk_display_beep (gdk_display_get_default ());
554 555 556 557 558
}

/**
 * gdk_event_send_client_message:
 * @event: the #GdkEvent to send, which should be a #GdkEventClient.
Owen Taylor's avatar
Owen Taylor committed
559
 * @winid:  the window to send the X ClientMessage event to.
560 561 562 563 564 565 566 567 568
 * 
 * Sends an X ClientMessage event to a given window (which must be
 * on the default #GdkDisplay.)
 * This could be used for communicating between different applications,
 * though the amount of data is limited to 20 bytes.
 * 
 * Return value: non-zero on success.
 **/
gboolean
Owen Taylor's avatar
Owen Taylor committed
569 570
gdk_event_send_client_message (GdkEvent        *event,
			       GdkNativeWindow  winid)
571 572 573
{
  g_return_val_if_fail (event != NULL, FALSE);

Owen Taylor's avatar
Owen Taylor committed
574
  return gdk_event_send_client_message_for_display (gdk_display_get_default (),
Owen Taylor's avatar
Owen Taylor committed
575
						    event, winid);
576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594
}

/**
 * gdk_event_send_clientmessage_toall:
 * @event: the #GdkEvent to send, which should be a #GdkEventClient.
 *
 * Sends an X ClientMessage event to all toplevel windows on the default
 * #GdkScreen.
 *
 * Toplevel windows are determined by checking for the WM_STATE property, as
 * described in the Inter-Client Communication Conventions Manual (ICCCM).
 * If no windows are found with the WM_STATE property set, the message is sent
 * to all children of the root window.
 **/
void
gdk_event_send_clientmessage_toall (GdkEvent *event)
{
  g_return_if_fail (event != NULL);

Owen Taylor's avatar
Owen Taylor committed
595
  gdk_screen_broadcast_client_message (gdk_screen_get_default (), event);
596 597
}

598 599 600 601 602 603 604
/**
 * gdk_device_get_core_pointer:
 * 
 * Returns the core pointer device for the default display.
 * 
 * Return value: the core pointer device; this is owned by the
 *   display and should not be freed.
605 606 607 608
 *
 * Deprecated: 3.0. Use gdk_display_get_device_manager() instead, or
 *             gdk_event_get_device() if a #GdkEvent with pointer device
 *             information is available.
609 610 611 612
 **/
GdkDevice *
gdk_device_get_core_pointer (void)
{
Owen Taylor's avatar
Owen Taylor committed
613
  return gdk_display_get_core_pointer (gdk_display_get_default ());
614 615 616 617 618 619 620 621 622 623
}

/**
 * gdk_display_get_core_pointer:
 * @display: a #GdkDisplay
 * 
 * Returns the core pointer device for the given display
 * 
 * Return value: the core pointer device; this is owned by the
 *   display and should not be freed.
Matthias Clasen's avatar
Matthias Clasen committed
624 625
 *
 * Since: 2.2
626 627 628 629
 *
 * Deprecated: 3.0. Use gdk_display_get_device_manager() instead, or
 *             gdk_event_get_device() if a #GdkEvent with device
 *             information is available.
630 631 632 633 634 635
 **/
GdkDevice *
gdk_display_get_core_pointer (GdkDisplay *display)
{
  return display->core_pointer;
}
636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653

/**
 * gdk_set_sm_client_id:
 * @sm_client_id: the client id assigned by the session manager when the
 *    connection was opened, or %NULL to remove the property.
 * 
 * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
 * the window manager can save the application's state using the X11R6 ICCCM
 * session management protocol.
 *
 * See the X Session Management Library documentation for more information on
 * session management and the Inter-Client Communication Conventions Manual
 * (ICCCM) for information on the <literal>WM_CLIENT_LEADER</literal> property. 
 * (Both documents are part of the X Window System distribution.)
 **/
void
gdk_set_sm_client_id (const gchar* sm_client_id)
{
654 655 656 657 658 659 660 661 662 663
  GSList *displays, *tmp_list;
  
  g_free (gdk_sm_client_id);
  gdk_sm_client_id = g_strdup (sm_client_id);

  displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
  for (tmp_list = displays; tmp_list; tmp_list = tmp_list->next)
    _gdk_windowing_display_set_sm_client_id (tmp_list->data, sm_client_id);

  g_slist_free (displays);
664 665
}

666 667 668 669 670 671 672 673 674 675 676 677 678
/**
 * _gdk_get_sm_client_id:
 * 
 * Gets the client ID set with gdk_set_sm_client_id(), if any.
 * 
 * Return value: Session ID, or %NULL if gdk_set_sm_client_id()
 *               has never been called.
 **/
const char *
_gdk_get_sm_client_id (void)
{
  return gdk_sm_client_id;
}
679

680
void
681 682
_gdk_display_enable_motion_hints (GdkDisplay *display,
                                  GdkDevice  *device)
683
{
684 685 686 687 688 689 690 691 692 693 694 695
  gulong *device_serial, serial;

  device_serial = g_hash_table_lookup (display->motion_hint_info, device);

  if (!device_serial)
    {
      device_serial = g_new0 (gulong, 1);
      *device_serial = G_MAXULONG;
      g_hash_table_insert (display->motion_hint_info, device, device_serial);
    }

  if (*device_serial != 0)
696
    {
697 698 699
      serial = _gdk_windowing_window_get_next_serial (display);
      /* We might not actually generate the next request, so
	 make sure this triggers always, this may cause it to
Matthias Clasen's avatar
Matthias Clasen committed
700
	 trigger slightly too early, but this is just a hint
701 702 703
	 anyway. */
      if (serial > 0)
	serial--;
704 705
      if (serial < *device_serial)
	*device_serial = serial;
706 707 708
    }
}

709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815
/**
 * gdk_display_get_device_state:
 * @display: a #GdkDisplay.
 * @device: device to query status to.
 * @screen: location to store the #GdkScreen the @device is on, or %NULL.
 * @x: location to store root window X coordinate of @device, or %NULL.
 * @y: location to store root window Y coordinate of @device, or %NULL.
 * @mask: location to store current modifier mask for @device, or %NULL.
 *
 * Gets the current location and state of @device for a given display.
 *
 * Since: 3.0
 **/
void
gdk_display_get_device_state (GdkDisplay       *display,
                              GdkDevice        *device,
                              GdkScreen       **screen,
                              gint             *x,
                              gint             *y,
                              GdkModifierType  *mask)
{
  GdkScreen *tmp_screen;
  gint tmp_x, tmp_y;
  GdkModifierType tmp_mask;

  g_return_if_fail (GDK_IS_DISPLAY (display));
  g_return_if_fail (GDK_IS_DEVICE (device));

  display->device_hooks->get_device_state (display, device, &tmp_screen, &tmp_x, &tmp_y, &tmp_mask);

  if (screen)
    *screen = tmp_screen;
  if (x)
    *x = tmp_x;
  if (y)
    *y = tmp_y;
  if (mask)
    *mask = tmp_mask;
}

/**
 * gdk_display_get_window_at_device_position:
 * @display: a #GdkDisplay.
 * @device: #GdkDevice to query info to.
 * @win_x: return location for the X coordinate of the device location, relative to the window origin, or %NULL.
 * @win_y: return location for the Y coordinate of the device location, relative to the window origin, or %NULL.
 *
 * Obtains the window underneath @device, returning the location of the device in @win_x and @win_y. Returns
 * %NULL if the window tree under @device is not known to GDK (for example, belongs to another application).
 *
 * Returns: the #GdkWindow under the device position, or %NULL.
 *
 * Since: 3.0
 **/
GdkWindow *
gdk_display_get_window_at_device_position (GdkDisplay *display,
                                           GdkDevice  *device,
                                           gint       *win_x,
                                           gint       *win_y)
{
  gint tmp_x, tmp_y;
  GdkWindow *window;

  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
  g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);

  window = display->device_hooks->window_at_device_position (display, device, &tmp_x, &tmp_y);

  if (win_x)
    *win_x = tmp_x;
  if (win_y)
    *win_y = tmp_y;

  return window;
}

/**
 * gdk_display_set_device_hooks:
 * @display: a #GdkDisplay.
 * @new_hooks: a table of pointers to functions for getting quantities related to all
 *             devices position, or %NULL to restore the default table.
 *
 * This function allows for hooking into the operation of getting the current location of any
 * #GdkDevice on a particular #GdkDisplay. This is only useful for such low-level tools as
 * an event recorder. Applications should never have any reason to use this facility.
 *
 * Returns: The previous device hook table.
 *
 * Since: 3.0
 **/
GdkDisplayDeviceHooks *
gdk_display_set_device_hooks (GdkDisplay                  *display,
                              const GdkDisplayDeviceHooks *new_hooks)
{
  const GdkDisplayDeviceHooks *result;

  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
  result = display->device_hooks;

  if (new_hooks)
    display->device_hooks = new_hooks;
  else
    display->device_hooks = &default_device_hooks;

  return (GdkDisplayDeviceHooks *) result;
}

816 817 818
/**
 * gdk_display_get_pointer:
 * @display: a #GdkDisplay
819
 * @screen: (allow-none): location to store the screen that the
820
 *          cursor is on, or %NULL.
Johan Dahlin's avatar
Johan Dahlin committed
821 822 823
 * @x: (allow-none): (out): location to store root window X coordinate of pointer, or %NULL.
 * @y: (allow-none): (out): location to store root window Y coordinate of pointer, or %NULL.
 * @mask: (allow-none): (out): location to store current modifier mask, or %NULL
824
 *
825 826
 * Gets the current location of the pointer and the current modifier
 * mask for a given display.
Matthias Clasen's avatar
Matthias Clasen committed
827 828
 *
 * Since: 2.2
829 830
 *
 * Deprecated: 3.0. Use gdk_display_get_device_state() instead.
831 832 833 834 835 836 837 838 839 840
 **/
void
gdk_display_get_pointer (GdkDisplay      *display,
			 GdkScreen      **screen,
			 gint            *x,
			 gint            *y,
			 GdkModifierType *mask)
{
  g_return_if_fail (GDK_IS_DISPLAY (display));

841
  gdk_display_get_device_state (display, display->core_pointer, screen, x, y, mask);
842 843
}

844
static GdkWindow *
845 846 847 848
gdk_display_real_get_window_at_device_position (GdkDisplay *display,
                                                GdkDevice  *device,
                                                gint       *win_x,
                                                gint       *win_y)
849 850 851 852
{
  GdkWindow *window;
  gint x, y;

853
  window = _gdk_windowing_window_at_device_position (display, device, &x, &y, NULL, FALSE);
854 855 856 857 858 859

  /* This might need corrections, as the native window returned
     may contain client side children */
  if (window)
    {
      double xx, yy;
860

861
      window = _gdk_window_find_descendant_at (window,
862
					       x, y,
863 864 865 866
					       &xx, &yy);
      x = floor (xx + 0.5);
      y = floor (yy + 0.5);
    }
867

868 869
  *win_x = x;
  *win_y = y;
870

871 872 873 874
  return window;
}

static GdkWindow *
875 876 877 878 879 880
gdk_window_real_window_get_device_position (GdkDisplay       *display,
                                            GdkDevice        *device,
                                            GdkWindow        *window,
                                            gint             *x,
                                            gint             *y,
                                            GdkModifierType  *mask)
881 882 883
{
  GdkWindowObject *private;
  gint tmpx, tmpy;
884
  GdkModifierType tmp_mask;
885
  gboolean normal_child;
886 887 888

  private = (GdkWindowObject *) window;

889 890 891 892
  normal_child = GDK_WINDOW_IMPL_GET_IFACE (private->impl)->get_device_state (window,
                                                                              device,
                                                                              &tmpx, &tmpy,
                                                                              &tmp_mask);
Matthias Clasen's avatar
Matthias Clasen committed
893
  /* We got the coords on the impl, convert to the window */
894 895
  tmpx -= private->abs_x;
  tmpy -= private->abs_y;
896

897 898 899 900
  if (x)
    *x = tmpx;
  if (y)
    *y = tmpy;
901 902
  if (mask)
    *mask = tmp_mask;
903

904 905 906
  if (normal_child)
    return _gdk_window_find_child_at (window, tmpx, tmpy);
  return NULL;
907 908
}

909 910 911
/**
 * gdk_display_get_window_at_pointer:
 * @display: a #GdkDisplay
912
 * @win_x: (out) (allow-none): return location for x coordinate of the pointer location relative
913
 *    to the window origin, or %NULL
914
 * @win_y: (out) (allow-none): return location for y coordinate of the pointer location relative
915
 &    to the window origin, or %NULL
916
 *
917
 * Obtains the window underneath the mouse pointer, returning the location
918
 * of the pointer in that window in @win_x, @win_y for @screen. Returns %NULL
919 920
 * if the window under the mouse pointer is not known to GDK (for example, 
 * belongs to another application).
921 922
 *
 * Returns: (transfer none): the window under the mouse pointer, or %NULL
Matthias Clasen's avatar
Matthias Clasen committed
923 924
 *
 * Since: 2.2
925 926
 *
 * Deprecated: 3.0. Use gdk_display_get_window_at_device_position() instead.
927 928 929 930 931 932 933
 **/
GdkWindow *
gdk_display_get_window_at_pointer (GdkDisplay *display,
				   gint       *win_x,
				   gint       *win_y)
{
  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
Kristian Rietveld's avatar
Kristian Rietveld committed
934

935 936
  return gdk_display_get_window_at_device_position (display, display->core_pointer, win_x, win_y);
}
937

938 939 940 941 942 943 944 945 946 947
static void
multihead_get_device_state (GdkDisplay       *display,
                            GdkDevice        *device,
                            GdkScreen       **screen,
                            gint             *x,
                            gint             *y,
                            GdkModifierType  *mask)
{
  multihead_current_pointer_hooks->get_pointer (display, screen, x, y, mask);
}
Kristian Rietveld's avatar
Kristian Rietveld committed
948

949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000
static GdkWindow *
multihead_window_get_device_position (GdkDisplay      *display,
                                      GdkDevice       *device,
                                      GdkWindow       *window,
                                      gint            *x,
                                      gint            *y,
                                      GdkModifierType *mask)
{
  return multihead_current_pointer_hooks->window_get_pointer (display, window, x, y, mask);
}

static GdkWindow *
multihead_window_at_device_position (GdkDisplay *display,
                                     GdkDevice  *device,
                                     gint       *win_x,
                                     gint       *win_y)
{
  return multihead_current_pointer_hooks->window_at_pointer (display, win_x, win_y);
}

static void
multihead_default_get_pointer (GdkDisplay       *display,
                               GdkScreen       **screen,
                               gint             *x,
                               gint             *y,
                               GdkModifierType  *mask)
{
  return _gdk_windowing_get_device_state (display,
                                          display->core_pointer,
                                          screen, x, y, mask);
}

static GdkWindow *
multihead_default_window_get_pointer (GdkDisplay      *display,
                                      GdkWindow       *window,
                                      gint            *x,
                                      gint            *y,
                                      GdkModifierType *mask)
{
  return gdk_window_real_window_get_device_position (display,
                                                     display->core_pointer,
                                                     window, x, y, mask);
}

static GdkWindow *
multihead_default_window_at_pointer (GdkDisplay *display,
                                     gint       *win_x,
                                     gint       *win_y)
{
  return gdk_display_real_get_window_at_device_position (display,
                                                         display->core_pointer,
                                                         win_x, win_y);
1001 1002 1003 1004
}

/**
 * gdk_display_set_pointer_hooks:
Matthias Clasen's avatar
Matthias Clasen committed
1005
 * @display: a #GdkDisplay
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
 * @new_hooks: a table of pointers to functions for getting
 *   quantities related to the current pointer position,
 *   or %NULL to restore the default table.
 * 
 * This function allows for hooking into the operation
 * of getting the current location of the pointer on a particular
 * display. This is only useful for such low-level tools as an
 * event recorder. Applications should never have any
 * reason to use this facility.
 *
 * Return value: the previous pointer hook table
Matthias Clasen's avatar
Matthias Clasen committed
1017 1018
 *
 * Since: 2.2
1019 1020
 *
 * Deprecated: 3.0. Use gdk_display_set_device_hooks() instead.
1021 1022 1023 1024 1025
 **/
GdkDisplayPointerHooks *
gdk_display_set_pointer_hooks (GdkDisplay                   *display,
			       const GdkDisplayPointerHooks *new_hooks)
{
1026
  const GdkDisplayPointerHooks *result = multihead_current_pointer_hooks;
1027 1028 1029 1030

  g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);

  if (new_hooks)
1031
    multihead_current_pointer_hooks = new_hooks;
1032
  else
1033 1034 1035
    multihead_current_pointer_hooks = &multihead_default_pointer_hooks;

  gdk_display_set_device_hooks (display, &multihead_pointer_hooks);
1036 1037 1038 1039

  return (GdkDisplayPointerHooks *)result;
}

Matthias Clasen's avatar
Matthias Clasen committed
1040
static void
1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054
singlehead_get_pointer (GdkDisplay       *display,
			GdkScreen       **screen,
			gint             *x,
			gint             *y,
			GdkModifierType  *mask)
{
  GdkScreen *default_screen = gdk_display_get_default_screen (display);
  GdkWindow *root_window = gdk_screen_get_root_window (default_screen);

  *screen = default_screen;

  singlehead_current_pointer_hooks->get_pointer (root_window, x, y, mask);
}

Matthias Clasen's avatar
Matthias Clasen committed
1055
static GdkWindow*
1056 1057 1058 1059 1060 1061 1062 1063 1064
singlehead_window_get_pointer (GdkDisplay       *display,
			       GdkWindow        *window,
			       gint             *x,
			       gint             *y,
			       GdkModifierType  *mask)
{
  return singlehead_current_pointer_hooks->get_pointer (window, x, y, mask);
}

Matthias Clasen's avatar
Matthias Clasen committed
1065
static GdkWindow*
1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
singlehead_window_at_pointer   (GdkDisplay *display,
				gint       *win_x,
				gint       *win_y)
{
  GdkScreen *default_screen = gdk_display_get_default_screen (display);

  return singlehead_current_pointer_hooks->window_at_pointer (default_screen,
							      win_x, win_y);
}

Matthias Clasen's avatar
Matthias Clasen committed
1076
static GdkWindow*
1077 1078 1079 1080 1081
singlehead_default_window_get_pointer (GdkWindow       *window,
				       gint            *x,
				       gint            *y,
				       GdkModifierType *mask)
{
1082 1083 1084 1085 1086 1087 1088
  GdkDisplay *display;

  display = gdk_drawable_get_display (window);

  return gdk_window_real_window_get_device_position (display,
                                                     display->core_pointer,
                                                     window, x, y, mask);
1089 1090
}

Matthias Clasen's avatar
Matthias Clasen committed
1091
static GdkWindow*
1092 1093 1094 1095
singlehead_default_window_at_pointer  (GdkScreen       *screen,
				       gint            *win_x,
				       gint            *win_y)
{
1096 1097 1098 1099 1100 1101 1102
  GdkDisplay *display;

  display = gdk_screen_get_display (screen);

  return gdk_display_real_get_window_at_device_position (display,
                                                         display->core_pointer,
                                                         win_x, win_y);
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120
}

/**
 * gdk_set_pointer_hooks:
 * @new_hooks: a table of pointers to functions for getting
 *   quantities related to the current pointer position,
 *   or %NULL to restore the default table.
 * 
 * This function allows for hooking into the operation
 * of getting the current location of the pointer. This
 * is only useful for such low-level tools as an
 * event recorder. Applications should never have any
 * reason to use this facility.
 *
 * This function is not multihead safe. For multihead operation,
 * see gdk_display_set_pointer_hooks().
 * 
 * Return value: the previous pointer hook table
1121 1122
 *
 * Deprecated: 3.0. Use gdk_display_set_device_hooks() instead.
1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139
 **/
GdkPointerHooks *
gdk_set_pointer_hooks (const GdkPointerHooks *new_hooks)
{
  const GdkPointerHooks *result = singlehead_current_pointer_hooks;

  if (new_hooks)
    singlehead_current_pointer_hooks = new_hooks;
  else
    singlehead_current_pointer_hooks = &singlehead_default_pointer_hooks;

  gdk_display_set_pointer_hooks (gdk_display_get_default (),
				 &singlehead_pointer_hooks);
  
  return (GdkPointerHooks *)result;
}

1140 1141
static void
generate_grab_broken_event (GdkWindow *window,
1142
                            GdkDevice *device,
1143 1144 1145 1146 1147 1148 1149
			    gboolean   implicit,
			    GdkWindow *grab_window)
{
  g_return_if_fail (window != NULL);

  if (!GDK_WINDOW_DESTROYED (window))
    {
1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
      GdkEvent *event;

      event = gdk_event_new (GDK_GRAB_BROKEN);
      event->grab_broken.window = g_object_ref (window);
      event->grab_broken.send_event = FALSE;
      event->grab_broken.implicit = implicit;
      event->grab_broken.grab_window = grab_window;
      gdk_event_set_device (event, device);
      event->grab_broken.keyboard = (device->source == GDK_SOURCE_KEYBOARD) ? TRUE : FALSE;

      gdk_event_put (event);
      gdk_event_free (event);
1162 1163 1164
    }
}

1165 1166 1167
GdkDeviceGrabInfo *
_gdk_display_get_last_device_grab (GdkDisplay *display,
                                   GdkDevice  *device)
1168 1169 1170
{
  GList *l;

1171
  l = g_hash_table_lookup (display->device_grabs, device);
1172

1173 1174 1175 1176 1177
  if (l)
    {
      l = g_list_last (l);
      return l->data;
    }
1178

1179 1180
  return NULL;
}
1181

1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192
GdkDeviceGrabInfo *
_gdk_display_add_device_grab (GdkDisplay       *display,
                              GdkDevice        *device,
                              GdkWindow        *window,
                              GdkWindow        *native_window,
                              GdkGrabOwnership  grab_ownership,
                              gboolean          owner_events,
                              GdkEventMask      event_mask,
                              unsigned long     serial_start,
                              guint32           time,
                              gboolean          implicit)
1193
{
1194 1195
  GdkDeviceGrabInfo *info, *other_info;
  GList *grabs, *l;
1196

1197
  info = g_new0 (GdkDeviceGrabInfo, 1);
1198 1199 1200 1201 1202 1203 1204 1205 1206

  info->window = g_object_ref (window);
  info->native_window = g_object_ref (native_window);
  info->serial_start = serial_start;
  info->serial_end = G_MAXULONG;
  info->owner_events = owner_events;
  info->event_mask = event_mask;
  info->time = time;
  info->implicit = implicit;
1207 1208 1209
  info->ownership = grab_ownership;

  grabs = g_hash_table_lookup (display->device_grabs, device);
1210 1211 1212 1213

  /* Find the first grab that has a larger start time (if any) and insert
   * before that. I.E we insert after already existing grabs with same
   * start time */
1214
  for (l = grabs; l != NULL; l = l->next)
1215
    {
1216
      other_info = l->data;
1217

1218 1219 1220
      if (info->serial_start < other_info->serial_start)
	break;
    }
1221 1222

  grabs = g_list_insert_before (grabs, l, info);
1223 1224 1225 1226 1227 1228

  /* Make sure the new grab end before next grab */
  if (l)
    {
      other_info = l->data;
      info->serial_end = other_info->serial_start;
1229
    }
1230

1231
  /* Find any previous grab and update its end time */
1232
  l = g_list_find (grabs, info);
1233 1234
  l = l->prev;
  if (l)
1235
    {
1236 1237 1238 1239
      other_info = l->data;
      other_info->serial_end = serial_start;
    }

1240
  g_hash_table_insert (display->device_grabs, device, grabs);
1241

1242
  return info;
1243 1244
}

Alexander Larsson's avatar
Alexander Larsson committed
1245
/* _gdk_synthesize_crossing_events only works inside one toplevel.
1246 1247 1248
   This function splits things into two calls if needed, converting the
   coordinates to the right toplevel */
static void
1249 1250 1251 1252 1253 1254 1255
synthesize_crossing_events (GdkDisplay      *display,
                            GdkDevice       *device,
			    GdkWindow       *src_window,
			    GdkWindow       *dest_window,
			    GdkCrossingMode  crossing_mode,
			    guint32          time,
			    gulong           serial)
1256 1257 1258 1259
{
  GdkWindow *src_toplevel, *dest_toplevel;
  GdkModifierType state;
  int x, y;
1260 1261 1262 1263

  /* We use the native crossing events if all native */
  if (_gdk_native_windows)
    return;
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
  
  if (src_window)
    src_toplevel = gdk_window_get_toplevel (src_window);
  else
    src_toplevel = NULL;
  if (dest_window)
    dest_toplevel = gdk_window_get_toplevel (dest_window);
  else
    dest_toplevel = NULL;

  if (src_toplevel == NULL && dest_toplevel == NULL)
    return;
  
  if (src_toplevel == NULL ||
      src_toplevel == dest_toplevel)
    {
      /* Same toplevels */
1281 1282
      gdk_window_get_pointer (dest_toplevel,
			      &x, &y, &state);
Alexander Larsson's avatar
Alexander Larsson committed
1283
      _gdk_synthesize_crossing_events (display,
1284 1285
				       src_window,
				       dest_window,
1286
                                       device,
1287 1288 1289