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Dogcows Code - chaz/openbox/blob - openbox/grab.c
a382c1adc31a7427094214872cb324a15d2fe0ec
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 grab.c for the Openbox window manager
4 Copyright (c) 2006 Mikael Magnusson
5 Copyright (c) 2003-2007 Dana Jansens
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 See the COPYING file for a copy of the GNU General Public License.
30 #define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | \
31 PointerMotionMask | PointerMotionHintMask)
32 #define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask)
34 #define MASK_LIST_SIZE 8
36 /*! A list of all possible combinations of keyboard lock masks */
37 static guint mask_list
[MASK_LIST_SIZE
];
38 static guint kgrabs
= 0;
39 static guint pgrabs
= 0;
40 /*! The time at which the last grab was made */
41 static Time grab_time
= CurrentTime
;
43 static Time
ungrab_time()
45 Time t
= event_curtime
;
46 if (!(t
== CurrentTime
|| event_time_after(t
, grab_time
)))
47 /* When the time moves backward on the server, then we can't use
48 the grab time because that will be in the future. So instead we
49 have to use CurrentTime.
51 "XUngrabPointer does not release the pointer if the specified time
52 is earlier than the last-pointer-grab time or is later than the
53 current X server time."
55 t
= CurrentTime
; /*grab_time;*/
59 gboolean
grab_on_keyboard()
64 gboolean
grab_on_pointer()
69 gboolean
grab_keyboard(gboolean grab
)
75 ret
= XGrabKeyboard(ob_display
, RootWindow(ob_display
, ob_screen
),
76 False
, GrabModeAsync
, GrabModeAsync
,
77 event_curtime
) == Success
;
81 grab_time
= event_curtime
;
84 } else if (kgrabs
> 0) {
86 XUngrabKeyboard(ob_display
, ungrab_time());
94 gboolean
grab_pointer(gboolean grab
, gboolean owner_events
, ObCursor cur
)
100 ret
= XGrabPointer(ob_display
, screen_support_win
, owner_events
,
102 GrabModeAsync
, GrabModeAsync
, None
,
103 ob_cursor(cur
), event_curtime
) == Success
;
107 grab_time
= event_curtime
;
110 } else if (pgrabs
> 0) {
112 XUngrabPointer(ob_display
, ungrab_time());
119 gint
grab_server(gboolean grab
)
121 static guint sgrabs
= 0;
124 XGrabServer(ob_display
);
125 XSync(ob_display
, FALSE
);
127 } else if (sgrabs
> 0) {
129 XUngrabServer(ob_display
);
136 void grab_startup(gboolean reconfig
)
140 if (reconfig
) return;
143 mask_list
[i
++] = LockMask
;
144 mask_list
[i
++] = NumLockMask
;
145 mask_list
[i
++] = LockMask
| NumLockMask
;
146 mask_list
[i
++] = ScrollLockMask
;
147 mask_list
[i
++] = ScrollLockMask
| LockMask
;
148 mask_list
[i
++] = ScrollLockMask
| NumLockMask
;
149 mask_list
[i
++] = ScrollLockMask
| LockMask
| NumLockMask
;
150 g_assert(i
== MASK_LIST_SIZE
);
153 void grab_shutdown(gboolean reconfig
)
155 if (reconfig
) return;
157 while (grab_keyboard(FALSE
));
158 while (grab_pointer(FALSE
, FALSE
, OB_CURSOR_NONE
));
159 while (grab_server(FALSE
));
162 void grab_button_full(guint button
, guint state
, Window win
, guint mask
,
163 gint pointer_mode
, ObCursor cur
)
167 xerror_set_ignore(TRUE
); /* can get BadAccess from these */
168 xerror_occured
= FALSE
;
169 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
170 XGrabButton(ob_display
, button
, state
| mask_list
[i
], win
, FALSE
, mask
,
171 pointer_mode
, GrabModeSync
, None
, ob_cursor(cur
));
172 xerror_set_ignore(FALSE
);
174 ob_debug("Failed to grab button %d modifiers %d", button
, state
);
177 void grab_button(guint button
, guint state
, Window win
, guint mask
)
179 grab_button_full(button
, state
, win
, mask
, GrabModeAsync
, OB_CURSOR_NONE
);
182 void ungrab_button(guint button
, guint state
, Window win
)
186 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
187 XUngrabButton(ob_display
, button
, state
| mask_list
[i
], win
);
190 void grab_key(guint keycode
, guint state
, Window win
, gint keyboard_mode
)
194 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
195 xerror_occured
= FALSE
;
196 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
197 XGrabKey(ob_display
, keycode
, state
| mask_list
[i
], win
, FALSE
,
198 GrabModeAsync
, keyboard_mode
);
199 xerror_set_ignore(FALSE
);
201 ob_debug("Failed to grab keycode %d modifiers %d", keycode
, state
);
204 void ungrab_all_keys(Window win
)
206 XUngrabKey(ob_display
, AnyKey
, AnyModifier
, win
);
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