File: ui.c

package info (click to toggle)
marco 1.8.2+dfsg1-6
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 10,056 kB
  • ctags: 4,789
  • sloc: ansic: 58,344; xml: 6,858; makefile: 329; sh: 31
file content (1259 lines) | stat: -rw-r--r-- 34,851 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
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
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
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
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
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
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
/* Marco interface for talking to GTK+ UI module */

/*
 * Copyright (C) 2002 Havoc Pennington
 * stock icon code Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include "prefs.h"
#include "ui.h"
#include "frames.h"
#include "util.h"
#include "menu.h"
#include "core.h"
#include "theme.h"

#include <string.h>
#include <stdlib.h>

#if GTK_CHECK_VERSION (3, 0, 0)
#include <cairo-xlib.h>
#endif

static void meta_ui_accelerator_parse(const char* accel, guint* keysym, guint* keycode, GdkModifierType* keymask);

struct _MetaUI {
	Display* xdisplay;
	Screen* xscreen;
	MetaFrames* frames;

	/* For double-click tracking */
	guint button_click_number;
	Window button_click_window;
	int button_click_x;
	int button_click_y;
	guint32 button_click_time;
};

void meta_ui_init(int* argc, char*** argv)
{
	if (!gtk_init_check (argc, argv))
	{
		meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));
	}
}

Display* meta_ui_get_display(void)
{
	return GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
}

/* We do some of our event handling in frames.c, which expects
 * GDK events delivered by GTK+.  However, since the transition to
 * client side windows, we can't let GDK see button events, since the
 * client-side tracking of implicit and explicit grabs it does will
 * get confused by our direct use of X grabs in the core code.
 *
 * So we do a very minimal GDK => GTK event conversion here and send on the
 * events we care about, and then filter them out so they don't go
 * through the normal GDK event handling.
 *
 * To reduce the amount of code, the only events fields filled out
 * below are the ones that frames.c uses. If frames.c is modified to
 * use more fields, more fields need to be filled out below.
 */

static gboolean
maybe_redirect_mouse_event (XEvent *xevent)
{
  GdkDisplay *gdisplay;
  MetaUI *ui;
#if GTK_CHECK_VERSION (3, 0, 0)
  GdkDeviceManager *gmanager;
  GdkEvent *gevent;
#else
  GdkEvent gevent;
#endif
  GdkWindow *gdk_window;
  Window window;

  switch (xevent->type)
    {
    case ButtonPress:
    case ButtonRelease:
      window = xevent->xbutton.window;
      break;
    case MotionNotify:
      window = xevent->xmotion.window;
      break;
    case EnterNotify:
    case LeaveNotify:
      window = xevent->xcrossing.window;
      break;
    default:
      return FALSE;
    }

  gdisplay = gdk_x11_lookup_xdisplay (xevent->xany.display);
  ui = g_object_get_data (G_OBJECT (gdisplay), "meta-ui");
  if (!ui)
    return FALSE;

#if GTK_CHECK_VERSION (3, 0, 0)
  gdk_window = gdk_x11_window_lookup_for_display (gdisplay, window);
#else
  gdk_window = gdk_window_lookup_for_display (gdisplay, window);
#endif
  if (gdk_window == NULL)
    return FALSE;

  /* If GDK already thinks it has a grab, we better let it see events; this
   * is the menu-navigation case and events need to get sent to the appropriate
   * (client-side) subwindow for individual menu items.
   */
  if (gdk_display_pointer_is_grabbed (gdisplay))
    return FALSE;

#if !GTK_CHECK_VERSION (3, 0, 0)
  memset (&gevent, 0, sizeof (gevent));
#endif

  switch (xevent->type)
    {
    case ButtonPress:
    case ButtonRelease:
      if (xevent->type == ButtonPress)
        {
          GtkSettings *settings = gtk_settings_get_default ();
          int double_click_time;
          int double_click_distance;

          g_object_get (settings,
                        "gtk-double-click-time", &double_click_time,
                        "gtk-double-click-distance", &double_click_distance,
                        NULL);

          if (xevent->xbutton.button == ui->button_click_number &&
              xevent->xbutton.window == ui->button_click_window &&
              xevent->xbutton.time < ui->button_click_time + double_click_time &&
              ABS (xevent->xbutton.x - ui->button_click_x) <= double_click_distance &&
              ABS (xevent->xbutton.y - ui->button_click_y) <= double_click_distance)
            {
#if GTK_CHECK_VERSION (3, 0, 0)
              gevent = gdk_event_new (GDK_2BUTTON_PRESS);
#else
              gevent.button.type = GDK_2BUTTON_PRESS;
#endif

              ui->button_click_number = 0;
            }
          else
            {
#if GTK_CHECK_VERSION (3, 0, 0)
              gevent = gdk_event_new (GDK_BUTTON_PRESS);
#else
              gevent.button.type = GDK_BUTTON_PRESS;
#endif
              ui->button_click_number = xevent->xbutton.button;
              ui->button_click_window = xevent->xbutton.window;
              ui->button_click_time = xevent->xbutton.time;
              ui->button_click_x = xevent->xbutton.x;
              ui->button_click_y = xevent->xbutton.y;
            }
        }
      else
        {
#if GTK_CHECK_VERSION (3, 0, 0)
          gevent = gdk_event_new (GDK_BUTTON_RELEASE);
#else
          gevent.button.type = GDK_BUTTON_RELEASE;
#endif
        }

#if GTK_CHECK_VERSION (3, 0, 0)
      gevent->button.window = g_object_ref (gdk_window);
      gevent->button.button = xevent->xbutton.button;
      gevent->button.time = xevent->xbutton.time;
      gevent->button.x = xevent->xbutton.x;
      gevent->button.y = xevent->xbutton.y;
      gevent->button.x_root = xevent->xbutton.x_root;
      gevent->button.y_root = xevent->xbutton.y_root;
#else
      gevent.button.window = gdk_window;
      gevent.button.button = xevent->xbutton.button;
      gevent.button.time = xevent->xbutton.time;
      gevent.button.x = xevent->xbutton.x;
      gevent.button.y = xevent->xbutton.y;
      gevent.button.x_root = xevent->xbutton.x_root;
      gevent.button.y_root = xevent->xbutton.y_root;
#endif

      break;
    case MotionNotify:
#if GTK_CHECK_VERSION (3, 0, 0)
      gevent = gdk_event_new (GDK_MOTION_NOTIFY);
      gevent->motion.type = GDK_MOTION_NOTIFY;
      gevent->motion.window = g_object_ref (gdk_window);
#else
      gevent.motion.type = GDK_MOTION_NOTIFY;
      gevent.motion.window = gdk_window;
#endif
      break;
    case EnterNotify:
    case LeaveNotify:
#if GTK_CHECK_VERSION (3, 0, 0)
      gevent = gdk_event_new (xevent->type == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY);
      gevent->crossing.window = g_object_ref (gdk_window);
      gevent->crossing.x = xevent->xcrossing.x;
      gevent->crossing.y = xevent->xcrossing.y;
#else
      gevent.crossing.type = xevent->type == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;
      gevent.crossing.window = gdk_window;
      gevent.crossing.x = xevent->xcrossing.x;
      gevent.crossing.y = xevent->xcrossing.y;
#endif
      break;
    default:
      g_assert_not_reached ();
      break;
    }

  /* If we've gotten here, we've filled in the gdk_event and should send it on */
#if GTK_CHECK_VERSION (3, 0, 0)
  gmanager = gdk_display_get_device_manager (gdisplay);
  gdk_event_set_device (gevent, gdk_device_manager_get_client_pointer (gmanager));  gtk_main_do_event (gevent);
  gdk_event_free (gevent);
#else
  gtk_main_do_event (&gevent);
#endif

  return TRUE;
}

typedef struct _EventFunc EventFunc;

struct _EventFunc
{
  MetaEventFunc func;
  gpointer data;
};

static EventFunc *ef = NULL;

static GdkFilterReturn
filter_func (GdkXEvent *xevent,
             GdkEvent *event,
             gpointer data)
{
  g_return_val_if_fail (ef != NULL, GDK_FILTER_CONTINUE);

  if ((* ef->func) (xevent, ef->data) ||
      maybe_redirect_mouse_event (xevent))
    return GDK_FILTER_REMOVE;
  else
    return GDK_FILTER_CONTINUE;
}

void
meta_ui_add_event_func (Display       *xdisplay,
                        MetaEventFunc  func,
                        gpointer       data)
{
  g_return_if_fail (ef == NULL);

  ef = g_new (EventFunc, 1);
  ef->func = func;
  ef->data = data;

  gdk_window_add_filter (NULL, filter_func, ef);
}

/* removal is by data due to proxy function */
void
meta_ui_remove_event_func (Display       *xdisplay,
                           MetaEventFunc  func,
                           gpointer       data)
{
  g_return_if_fail (ef != NULL);

  gdk_window_remove_filter (NULL, filter_func, ef);

  g_free (ef);
  ef = NULL;
}

MetaUI*
meta_ui_new (Display *xdisplay,
             Screen  *screen)
{
  GdkDisplay *gdisplay;
  MetaUI *ui;

  ui = g_new0 (MetaUI, 1);
  ui->xdisplay = xdisplay;
  ui->xscreen = screen;

  gdisplay = gdk_x11_lookup_xdisplay (xdisplay);
  g_assert (gdisplay == gdk_display_get_default ());

  g_assert (xdisplay == GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
  ui->frames = meta_frames_new (XScreenNumberOfScreen (screen));
  gtk_widget_realize (GTK_WIDGET (ui->frames));

  g_object_set_data (G_OBJECT (gdisplay), "meta-ui", ui);

  return ui;
}

void
meta_ui_free (MetaUI *ui)
{
  GdkDisplay *gdisplay;

  gtk_widget_destroy (GTK_WIDGET (ui->frames));

  gdisplay = gdk_x11_lookup_xdisplay (ui->xdisplay);
  g_object_set_data (G_OBJECT (gdisplay), "meta-ui", NULL);

  g_free (ui);
}

void
meta_ui_get_frame_geometry (MetaUI *ui,
                            Window frame_xwindow,
                            int *top_height, int *bottom_height,
                            int *left_width, int *right_width)
{
  meta_frames_get_geometry (ui->frames, frame_xwindow,
                            top_height, bottom_height,
                            left_width, right_width);
}

Window
meta_ui_create_frame_window (MetaUI *ui,
                             Display *xdisplay,
                             Visual *xvisual,
			     gint x,
			     gint y,
			     gint width,
			     gint height,
			     gint screen_no)
{
  GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
  GdkScreen *screen = gdk_display_get_screen (display, screen_no);
  GdkWindowAttr attrs;
  gint attributes_mask;
  GdkWindow *window;
  GdkVisual *visual;
#if !GTK_CHECK_VERSION (3, 0, 0)
  GdkColormap *cmap = gdk_screen_get_default_colormap (screen);
#endif

  /* Default depth/visual handles clients with weird visuals; they can
   * always be children of the root depth/visual obviously, but
   * e.g. DRI games can't be children of a parent that has the same
   * visual as the client.
   */
  if (!xvisual)
    visual = gdk_screen_get_system_visual (screen);
  else
    {
      visual = gdk_x11_screen_lookup_visual (screen,
                                             XVisualIDFromVisual (xvisual));
#if !GTK_CHECK_VERSION (3, 0, 0)
      cmap = gdk_colormap_new (visual, FALSE);
#endif
    }

  attrs.title = NULL;

  /* frame.c is going to replace the event mask immediately, but
   * we still have to set it here to let GDK know what it is.
   */
  attrs.event_mask =
    GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
    GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
    GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_FOCUS_CHANGE_MASK;
  attrs.x = x;
  attrs.y = y;
  attrs.wclass = GDK_INPUT_OUTPUT;
  attrs.visual = visual;
#if !GTK_CHECK_VERSION (3, 0, 0)
  attrs.colormap = cmap;
#endif
  attrs.window_type = GDK_WINDOW_CHILD;
  attrs.cursor = NULL;
  attrs.wmclass_name = NULL;
  attrs.wmclass_class = NULL;
  attrs.override_redirect = FALSE;

  attrs.width  = width;
  attrs.height = height;

#if GTK_CHECK_VERSION (3, 0, 0)
  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
#else
  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
#endif

  window =
    gdk_window_new (gdk_screen_get_root_window(screen),
		    &attrs, attributes_mask);

  gdk_window_resize (window, width, height);

  meta_frames_manage_window (ui->frames, GDK_WINDOW_XID (window), window);

  return GDK_WINDOW_XID (window);
}

void
meta_ui_destroy_frame_window (MetaUI *ui,
			      Window  xwindow)
{
  meta_frames_unmanage_window (ui->frames, xwindow);
}

void
meta_ui_move_resize_frame (MetaUI *ui,
			   Window frame,
			   int x,
			   int y,
			   int width,
			   int height)
{
  meta_frames_move_resize_frame (ui->frames, frame, x, y, width, height);
}

void
meta_ui_map_frame   (MetaUI *ui,
                     Window  xwindow)
{
  GdkWindow *window;

#if GTK_CHECK_VERSION (3, 0, 0)
  GdkDisplay *display;
  display = gdk_x11_lookup_xdisplay (ui->xdisplay);
  window = gdk_x11_window_lookup_for_display (display, xwindow);
#else
  window = gdk_xid_table_lookup (xwindow);
#endif

  if (window)
    gdk_window_show_unraised (window);
}

void
meta_ui_unmap_frame (MetaUI *ui,
                     Window  xwindow)
{
  GdkWindow *window;

#if GTK_CHECK_VERSION (3, 0, 0)
  GdkDisplay *display;
  display = gdk_x11_lookup_xdisplay (ui->xdisplay);
  window = gdk_x11_window_lookup_for_display (display, xwindow);
#else
  window = gdk_xid_table_lookup (xwindow);
#endif

  if (window)
    gdk_window_hide (window);
}

void
meta_ui_unflicker_frame_bg (MetaUI *ui,
                            Window  xwindow,
                            int     target_width,
                            int     target_height)
{
  meta_frames_unflicker_bg (ui->frames, xwindow,
                            target_width, target_height);
}

void
meta_ui_repaint_frame (MetaUI *ui,
                       Window xwindow)
{
  meta_frames_repaint_frame (ui->frames, xwindow);
}

void
meta_ui_reset_frame_bg (MetaUI *ui,
                        Window xwindow)
{
  meta_frames_reset_bg (ui->frames, xwindow);
}

void
meta_ui_apply_frame_shape  (MetaUI  *ui,
                            Window   xwindow,
                            int      new_window_width,
                            int      new_window_height,
                            gboolean window_has_shape)
{
  meta_frames_apply_shapes (ui->frames, xwindow,
                            new_window_width, new_window_height,
                            window_has_shape);
}

void
meta_ui_queue_frame_draw (MetaUI *ui,
                          Window xwindow)
{
  meta_frames_queue_draw (ui->frames, xwindow);
}


void
meta_ui_set_frame_title (MetaUI     *ui,
                         Window      xwindow,
                         const char *title)
{
  meta_frames_set_title (ui->frames, xwindow, title);
}

MetaWindowMenu*
meta_ui_window_menu_new  (MetaUI             *ui,
                          Window              client_xwindow,
                          MetaMenuOp          ops,
                          MetaMenuOp          insensitive,
                          unsigned long       active_workspace,
                          int                 n_workspaces,
                          MetaWindowMenuFunc  func,
                          gpointer            data)
{
  return meta_window_menu_new (ui->frames,
                               ops, insensitive,
                               client_xwindow,
                               active_workspace,
                               n_workspaces,
                               func, data);
}

void
meta_ui_window_menu_popup (MetaWindowMenu     *menu,
                           int                 root_x,
                           int                 root_y,
                           int                 button,
                           guint32             timestamp)
{
  meta_window_menu_popup (menu, root_x, root_y, button, timestamp);
}

void
meta_ui_window_menu_free (MetaWindowMenu *menu)
{
  meta_window_menu_free (menu);
}

#if !GTK_CHECK_VERSION (3, 0, 0)
struct _MetaImageWindow
{
  GtkWidget *window;
  GdkPixmap *pixmap;
};

MetaImageWindow*
meta_image_window_new (Display *xdisplay,
                       int      screen_number,
                       int      max_width,
                       int      max_height)
{
  MetaImageWindow *iw;
  GdkDisplay *gdisplay;
  GdkScreen *gscreen;

  iw = g_new (MetaImageWindow, 1);
  iw->window = gtk_window_new (GTK_WINDOW_POPUP);

  gdisplay = gdk_x11_lookup_xdisplay (xdisplay);
  gscreen = gdk_display_get_screen (gdisplay, screen_number);

  gtk_window_set_screen (GTK_WINDOW (iw->window), gscreen);

  gtk_widget_realize (iw->window);
  iw->pixmap = gdk_pixmap_new (gtk_widget_get_window (iw->window),
                               max_width, max_height,
                               -1);

  gtk_widget_set_size_request (iw->window, 1, 1);
  gtk_widget_set_double_buffered (iw->window, FALSE);
  gtk_widget_set_app_paintable (iw->window, TRUE);

  return iw;
}

void
meta_image_window_free (MetaImageWindow *iw)
{
  gtk_widget_destroy (iw->window);
  g_object_unref (G_OBJECT (iw->pixmap));
  g_free (iw);
}

void
meta_image_window_set_showing  (MetaImageWindow *iw,
                                gboolean         showing)
{
  if (showing)
    gtk_widget_show_all (iw->window);
  else
    {
      gtk_widget_hide (iw->window);
      meta_core_increment_event_serial (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
    }
}

void
meta_image_window_set (MetaImageWindow *iw,
                       GdkPixbuf       *pixbuf,
                       int              x,
                       int              y)
{
#if GTK_CHECK_VERSION (3, 0, 0)
  cairo_t *cr;
#endif

  /* We use a back pixmap to avoid having to handle exposes, because
   * it's really too slow for large clients being minimized, etc.
   * and this way flicker is genuinely zero.
   */

#if !GTK_CHECK_VERSION (3, 0, 0)
  gdk_draw_pixbuf (iw->pixmap,
                   gtk_widget_get_style (iw->window)->black_gc,
                   pixbuf,
                   0, 0,
                   0, 0,
                   gdk_pixbuf_get_width (pixbuf),
                   gdk_pixbuf_get_height (pixbuf),
                   GDK_RGB_DITHER_NORMAL,
                   0, 0);
#else
  cr = gdk_cairo_create (iw->pixmap);
  gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
  cairo_paint (cr);
  cairo_destroy (cr);
#endif

  gdk_window_set_back_pixmap (gtk_widget_get_window (iw->window),
                              iw->pixmap,
                              FALSE);

  gdk_window_move_resize (gtk_widget_get_window (iw->window),
                          x, y,
                          gdk_pixbuf_get_width (pixbuf),
                          gdk_pixbuf_get_height (pixbuf));

  gdk_window_clear (gtk_widget_get_window (iw->window));
}
#endif

#if !GTK_CHECK_VERSION (3, 0, 0)
static GdkColormap*
get_cmap (GdkPixmap *pixmap)
{
  GdkColormap *cmap;

  cmap = gdk_drawable_get_colormap (pixmap);
  if (cmap)
    g_object_ref (G_OBJECT (cmap));

  if (cmap == NULL)
    {
      if (gdk_drawable_get_depth (pixmap) == 1)
        {
          meta_verbose ("Using NULL colormap for snapshotting bitmap\n");
          cmap = NULL;
        }
      else
        {
          meta_verbose ("Using system cmap to snapshot pixmap\n");
          cmap = gdk_screen_get_system_colormap (gdk_drawable_get_screen (pixmap));

          g_object_ref (G_OBJECT (cmap));
        }
    }

  /* Be sure we aren't going to blow up due to visual mismatch */
  if (cmap &&
      (gdk_colormap_get_visual (cmap)->depth !=
       gdk_drawable_get_depth (pixmap)))
    {
      cmap = NULL;
      meta_verbose ("Switching back to NULL cmap because of depth mismatch\n");
    }

  return cmap;
}
#endif

#if GTK_CHECK_VERSION (3, 0, 0)
GdkPixbuf*
meta_gdk_pixbuf_get_from_pixmap (GdkPixbuf   *dest,
                                 Pixmap       xpixmap,
                                 int          src_x,
                                 int          src_y,
                                 int          dest_x,
                                 int          dest_y,
                                 int          width,
                                 int          height)
{
  cairo_surface_t *surface;
  Display *display;
  Window root_return;
  int x_ret, y_ret;
  unsigned int w_ret, h_ret, bw_ret, depth_ret;
  XWindowAttributes attrs;
  GdkPixbuf *retval;

  display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());

  if (!XGetGeometry (display, xpixmap, &root_return,
                     &x_ret, &y_ret, &w_ret, &h_ret, &bw_ret, &depth_ret))
    return NULL;

  if (depth_ret == 1)
    {
      surface = cairo_xlib_surface_create_for_bitmap (display,
                                                      xpixmap,
                                                      GDK_SCREEN_XSCREEN (gdk_screen_get_default ()),
                                                      w_ret,
                                                      h_ret);
    }
  else
    {
      if (!XGetWindowAttributes (display, root_return, &attrs))
        return NULL;

      surface = cairo_xlib_surface_create (display,
                                           xpixmap,
                                           attrs.visual,
                                           w_ret, h_ret);
    }

  retval = gdk_pixbuf_get_from_surface (surface,
                                        src_x,
                                        src_y,
                                        width,
                                        height);
  cairo_surface_destroy (surface);

  return retval;
}
#else
GdkPixbuf*
meta_gdk_pixbuf_get_from_pixmap (GdkPixbuf   *dest,
                                 Pixmap       xpixmap,
                                 int          src_x,
                                 int          src_y,
                                 int          dest_x,
                                 int          dest_y,
                                 int          width,
                                 int          height)
{
  GdkDrawable *drawable;
  GdkPixbuf *retval;
#if !GTK_CHECK_VERSION (3, 0, 0)
  GdkColormap *cmap;
#endif

  retval = NULL;
#if !GTK_CHECK_VERSION (3, 0, 0)
  cmap = NULL;
#endif

#if GTK_CHECK_VERSION (3, 0, 0)
  drawable = gdk_x11_window_lookup_for_display (gdk_display_get_default (), xpixmap);
#else
  drawable = gdk_xid_table_lookup (xpixmap);
#endif

  if (drawable)
    g_object_ref (G_OBJECT (drawable));
  else
    drawable = gdk_pixmap_foreign_new (xpixmap);

  if (drawable)
    {
      cmap = get_cmap (drawable);

      retval = gdk_pixbuf_get_from_drawable (dest,
                                             drawable,
                                             cmap,
                                             src_x, src_y,
                                             dest_x, dest_y,
                                             width, height);
    }
#if !GTK_CHECK_VERSION (3, 0, 0)
  if (cmap)
    g_object_unref (G_OBJECT (cmap));
#endif
  if (drawable)
    g_object_unref (G_OBJECT (drawable));

  return retval;
}
#endif

void
meta_ui_push_delay_exposes (MetaUI *ui)
{
  meta_frames_push_delay_exposes (ui->frames);
}

void
meta_ui_pop_delay_exposes  (MetaUI *ui)
{
  meta_frames_pop_delay_exposes (ui->frames);
}

GdkPixbuf*
meta_ui_get_default_window_icon (MetaUI *ui)
{
  static GdkPixbuf *default_icon = NULL;

  if (default_icon == NULL)
    {
      GtkIconTheme *theme;
      gboolean icon_exists;

      theme = gtk_icon_theme_get_default ();

      icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);

      if (icon_exists)
          default_icon = gtk_icon_theme_load_icon (theme,
                                                   META_DEFAULT_ICON_NAME,
                                                   META_ICON_WIDTH,
                                                   0,
                                                   NULL);
      else
          default_icon = gtk_icon_theme_load_icon (theme,
                                                   "image-missing",
                                                   META_ICON_WIDTH,
                                                   0,
                                                   NULL);

      g_assert (default_icon);
    }

  g_object_ref (G_OBJECT (default_icon));

  return default_icon;
}

GdkPixbuf*
meta_ui_get_default_mini_icon (MetaUI *ui)
{
  static GdkPixbuf *default_icon = NULL;

  if (default_icon == NULL)
    {
      GtkIconTheme *theme;
      gboolean icon_exists;

      theme = gtk_icon_theme_get_default ();

      icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);

      if (icon_exists)
          default_icon = gtk_icon_theme_load_icon (theme,
                                                   META_DEFAULT_ICON_NAME,
                                                   META_MINI_ICON_WIDTH,
                                                   0,
                                                   NULL);
      else
          default_icon = gtk_icon_theme_load_icon (theme,
                                                   "image-missing",
                                                   META_MINI_ICON_WIDTH,
                                                   0,
                                                   NULL);

      g_assert (default_icon);
    }

  g_object_ref (G_OBJECT (default_icon));

  return default_icon;
}

gboolean
meta_ui_window_should_not_cause_focus (Display *xdisplay,
                                       Window   xwindow)
{
  GdkWindow *window;

#if GTK_CHECK_VERSION (3, 0, 0)
  window = gdk_x11_window_lookup_for_display (gdk_display_get_default (), xwindow);
#else
  window = gdk_xid_table_lookup (xwindow);
#endif

  /* we shouldn't cause focus if we're an override redirect
   * toplevel which is not foreign
   */
  if (window && gdk_window_get_window_type (window) == GDK_WINDOW_TEMP)
    return TRUE;
  else
    return FALSE;
}

char*
meta_text_property_to_utf8 (Display             *xdisplay,
                            const XTextProperty *prop)
{
#if GTK_CHECK_VERSION (3, 0, 0)
  GdkDisplay *display;
#endif
  char **list;
  int count;
  char *retval;

  list = NULL;

#if GTK_CHECK_VERSION (3, 0, 0)
  display = gdk_x11_lookup_xdisplay (xdisplay);
  count = gdk_text_property_to_utf8_list_for_display (display,
                                                      gdk_x11_xatom_to_atom_for_display (display, prop->encoding),
                                                      prop->format,
                                                      prop->value,
                                                      prop->nitems,
                                                      &list);
#else
  count = gdk_text_property_to_utf8_list (gdk_x11_xatom_to_atom (prop->encoding),
                                          prop->format,
                                          prop->value,
                                          prop->nitems,
                                          &list);
#endif

  if (count == 0)
    retval = NULL;
  else
    {
      retval = list[0];
      list[0] = g_strdup (""); /* something to free */
    }

  g_strfreev (list);

  return retval;
}

void
meta_ui_theme_get_frame_borders (MetaUI *ui,
                                 MetaFrameType      type,
                                 MetaFrameFlags     flags,
                                 int               *top_height,
                                 int               *bottom_height,
                                 int               *left_width,
                                 int               *right_width)
{
  int text_height;
  PangoContext *context;
  const PangoFontDescription *font_desc;
  GtkStyle *default_style;

  if (meta_ui_have_a_theme ())
    {
      context = gtk_widget_get_pango_context (GTK_WIDGET (ui->frames));
      font_desc = meta_prefs_get_titlebar_font ();

      if (!font_desc)
        {
          default_style = gtk_widget_get_default_style ();
          font_desc = default_style->font_desc;
        }

      text_height = meta_pango_font_desc_get_text_height (font_desc, context);

      meta_theme_get_frame_borders (meta_theme_get_current (),
                                    type, text_height, flags,
                                    top_height, bottom_height,
                                    left_width, right_width);
    }
  else
    {
      *top_height = *bottom_height = *left_width = *right_width = 0;
    }
}

void
meta_ui_set_current_theme (const char *name,
                           gboolean    force_reload)
{
  meta_theme_set_current (name, force_reload);
  meta_invalidate_default_icons ();
}

gboolean
meta_ui_have_a_theme (void)
{
  return meta_theme_get_current () != NULL;
}

static void
meta_ui_accelerator_parse (const char      *accel,
                           guint           *keysym,
                           guint           *keycode,
                           GdkModifierType *keymask)
{
  if (accel[0] == '0' && accel[1] == 'x')
    {
      *keysym = 0;
      *keycode = (guint) strtoul (accel, NULL, 16);
      *keymask = 0;
    }
  else
    gtk_accelerator_parse (accel, keysym, keymask);
}

gboolean
meta_ui_parse_accelerator (const char          *accel,
                           unsigned int        *keysym,
                           unsigned int        *keycode,
                           MetaVirtualModifier *mask)
{
  GdkModifierType gdk_mask = 0;
  guint gdk_sym = 0;
  guint gdk_code = 0;

  *keysym = 0;
  *keycode = 0;
  *mask = 0;

  if (!accel[0] || strcmp (accel, "disabled") == 0)
    return TRUE;

  meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);
  if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)
    return FALSE;

  if (gdk_sym == None && gdk_code == 0)
    return FALSE;

  if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */
    return FALSE;

  *keysym = gdk_sym;
  *keycode = gdk_code;

  if (gdk_mask & GDK_SHIFT_MASK)
    *mask |= META_VIRTUAL_SHIFT_MASK;
  if (gdk_mask & GDK_CONTROL_MASK)
    *mask |= META_VIRTUAL_CONTROL_MASK;
  if (gdk_mask & GDK_MOD1_MASK)
    *mask |= META_VIRTUAL_ALT_MASK;
  if (gdk_mask & GDK_MOD2_MASK)
    *mask |= META_VIRTUAL_MOD2_MASK;
  if (gdk_mask & GDK_MOD3_MASK)
    *mask |= META_VIRTUAL_MOD3_MASK;
  if (gdk_mask & GDK_MOD4_MASK)
    *mask |= META_VIRTUAL_MOD4_MASK;
  if (gdk_mask & GDK_MOD5_MASK)
    *mask |= META_VIRTUAL_MOD5_MASK;
  if (gdk_mask & GDK_SUPER_MASK)
    *mask |= META_VIRTUAL_SUPER_MASK;
  if (gdk_mask & GDK_HYPER_MASK)
    *mask |= META_VIRTUAL_HYPER_MASK;
  if (gdk_mask & GDK_META_MASK)
    *mask |= META_VIRTUAL_META_MASK;

  return TRUE;
}

/* Caller responsible for freeing return string of meta_ui_accelerator_name! */
gchar*
meta_ui_accelerator_name  (unsigned int        keysym,
                           MetaVirtualModifier mask)
{
  GdkModifierType mods = 0;

  if (keysym == 0 && mask == 0)
    {
      return g_strdup ("disabled");
    }

  if (mask & META_VIRTUAL_SHIFT_MASK)
    mods |= GDK_SHIFT_MASK;
  if (mask & META_VIRTUAL_CONTROL_MASK)
    mods |= GDK_CONTROL_MASK;
  if (mask & META_VIRTUAL_ALT_MASK)
    mods |= GDK_MOD1_MASK;
  if (mask & META_VIRTUAL_MOD2_MASK)
    mods |= GDK_MOD2_MASK;
  if (mask & META_VIRTUAL_MOD3_MASK)
    mods |= GDK_MOD3_MASK;
  if (mask & META_VIRTUAL_MOD4_MASK)
    mods |= GDK_MOD4_MASK;
  if (mask & META_VIRTUAL_MOD5_MASK)
    mods |= GDK_MOD5_MASK;
  if (mask & META_VIRTUAL_SUPER_MASK)
    mods |= GDK_SUPER_MASK;
  if (mask & META_VIRTUAL_HYPER_MASK)
    mods |= GDK_HYPER_MASK;
  if (mask & META_VIRTUAL_META_MASK)
    mods |= GDK_META_MASK;

  return gtk_accelerator_name (keysym, mods);

}

gboolean
meta_ui_parse_modifier (const char          *accel,
                        MetaVirtualModifier *mask)
{
  GdkModifierType gdk_mask = 0;
  guint gdk_sym = 0;
  guint gdk_code = 0;

  *mask = 0;

  if (accel == NULL || !accel[0] || strcmp (accel, "disabled") == 0)
    return TRUE;

  meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);
  if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)
    return FALSE;

  if (gdk_sym != None || gdk_code != 0)
    return FALSE;

  if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */
    return FALSE;

  if (gdk_mask & GDK_SHIFT_MASK)
    *mask |= META_VIRTUAL_SHIFT_MASK;
  if (gdk_mask & GDK_CONTROL_MASK)
    *mask |= META_VIRTUAL_CONTROL_MASK;
  if (gdk_mask & GDK_MOD1_MASK)
    *mask |= META_VIRTUAL_ALT_MASK;
  if (gdk_mask & GDK_MOD2_MASK)
    *mask |= META_VIRTUAL_MOD2_MASK;
  if (gdk_mask & GDK_MOD3_MASK)
    *mask |= META_VIRTUAL_MOD3_MASK;
  if (gdk_mask & GDK_MOD4_MASK)
    *mask |= META_VIRTUAL_MOD4_MASK;
  if (gdk_mask & GDK_MOD5_MASK)
    *mask |= META_VIRTUAL_MOD5_MASK;
  if (gdk_mask & GDK_SUPER_MASK)
    *mask |= META_VIRTUAL_SUPER_MASK;
  if (gdk_mask & GDK_HYPER_MASK)
    *mask |= META_VIRTUAL_HYPER_MASK;
  if (gdk_mask & GDK_META_MASK)
    *mask |= META_VIRTUAL_META_MASK;

  return TRUE;
}

gboolean
meta_ui_window_is_widget (MetaUI *ui,
                          Window  xwindow)
{
  GdkWindow *window;

#if GTK_CHECK_VERSION (3, 0, 0)
  GdkDisplay *display;
  
  window = gdk_x11_window_lookup_for_display (display, xwindow);
#else
  window = gdk_xid_table_lookup (xwindow);
#endif

  if (window)
    {
      void *user_data = NULL;
      gdk_window_get_user_data (window, &user_data);
      return user_data != NULL && user_data != ui->frames;
    }
  else
    return FALSE;
}

/* stock icon code Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org> */

typedef struct {
	char* stock_id;
	const guint8* icon_data;
} MetaStockIcon;

int meta_ui_get_drag_threshold(MetaUI* ui)
{
	int threshold = 8;
	GtkSettings* settings = gtk_widget_get_settings(GTK_WIDGET(ui->frames));

	g_object_get(G_OBJECT(settings), "gtk-dnd-drag-threshold", &threshold, NULL);

	return threshold;
}

MetaUIDirection meta_ui_get_direction(void)
{
	if (gtk_widget_get_default_direction() == GTK_TEXT_DIR_RTL)
	{
		return META_UI_DIRECTION_RTL;
	}

	return META_UI_DIRECTION_LTR;
}

#if !GTK_CHECK_VERSION (3, 0, 0)
GdkPixbuf* meta_ui_get_pixbuf_from_pixmap(Pixmap pmap)
{
	GdkPixmap* gpmap;
	GdkScreen* screen;
	GdkPixbuf* pixbuf;
#if !GTK_CHECK_VERSION (3, 0, 0)
	GdkColormap* cmap;
#endif
	int width;
	int height;
	int depth;

	gpmap = gdk_pixmap_foreign_new(pmap);
	screen = gdk_drawable_get_screen(gpmap);

#if GTK_CHECK_VERSION(3, 0, 0)
	width = gdk_window_get_width(GDK_WINDOW(gpmap));
	height = gdk_window_get_height(GDK_WINDOW(gpmap));
#else
	gdk_drawable_get_size(GDK_DRAWABLE(gpmap), &width, &height);
#endif

	depth = gdk_drawable_get_depth(GDK_DRAWABLE(gpmap));

#if !GTK_CHECK_VERSION (3, 0, 0)
	if (depth <= 24)
	{
		cmap = gdk_screen_get_system_colormap(screen);
	}
	else
	{
		cmap = gdk_screen_get_rgba_colormap(screen);
	}
#endif

	pixbuf = gdk_pixbuf_get_from_drawable(NULL, gpmap, cmap, 0, 0, 0, 0, width, height);

	g_object_unref(gpmap);

	return pixbuf;
}
#endif