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Dogcows Code - chaz/openbox/blob - openbox/grab.c
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 Ben 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.
29 #define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | \
30 PointerMotionMask | EnterWindowMask | LeaveWindowMask)
31 #define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask)
33 #define MASK_LIST_SIZE 8
35 /*! A list of all possible combinations of keyboard lock masks */
36 static guint mask_list
[MASK_LIST_SIZE
];
37 static guint kgrabs
= 0;
38 static guint pgrabs
= 0;
39 /*! The time at which the last grab was made */
40 static Time grab_time
= CurrentTime
;
42 static Time
ungrab_time()
44 Time t
= event_curtime
;
45 if (!(t
== CurrentTime
|| event_time_after(t
, grab_time
)))
46 /* When the time moves backward on the server, then we can't use
47 the grab time because that will be in the future. So instead we
48 have to use CurrentTime.
50 "XUngrabPointer does not release the pointer if the specified time
51 is earlier than the last-pointer-grab time or is later than the
52 current X server time."
54 t
= CurrentTime
; /*grab_time;*/
58 gboolean
grab_on_keyboard()
63 gboolean
grab_on_pointer()
68 gboolean
grab_keyboard(gboolean grab
)
74 ret
= XGrabKeyboard(ob_display
, RootWindow(ob_display
, ob_screen
),
75 False
, GrabModeAsync
, GrabModeAsync
,
76 event_curtime
) == Success
;
80 grab_time
= event_curtime
;
83 } else if (kgrabs
> 0) {
85 XUngrabKeyboard(ob_display
, ungrab_time());
93 gboolean
grab_pointer(gboolean grab
, ObCursor cur
)
99 ret
= XGrabPointer(ob_display
, screen_support_win
,
100 True
, GRAB_PTR_MASK
, GrabModeAsync
,
102 ob_cursor(cur
), event_curtime
) == Success
;
106 grab_time
= event_curtime
;
109 } else if (pgrabs
> 0) {
111 XUngrabPointer(ob_display
, ungrab_time());
118 gboolean
grab_pointer_window(gboolean grab
, ObCursor cur
, Window win
)
120 gboolean ret
= FALSE
;
124 ret
= XGrabPointer(ob_display
, win
, True
, GRAB_PTR_MASK
,
125 GrabModeAsync
, GrabModeAsync
, None
,
127 event_curtime
) == Success
;
131 grab_time
= event_curtime
;
134 } else if (pgrabs
> 0) {
136 XUngrabPointer(ob_display
, ungrab_time());
143 gint
grab_server(gboolean grab
)
145 static guint sgrabs
= 0;
148 XGrabServer(ob_display
);
149 XSync(ob_display
, FALSE
);
151 } else if (sgrabs
> 0) {
153 XUngrabServer(ob_display
);
160 void grab_startup(gboolean reconfig
)
164 if (reconfig
) return;
167 mask_list
[i
++] = LockMask
;
168 mask_list
[i
++] = NumLockMask
;
169 mask_list
[i
++] = LockMask
| NumLockMask
;
170 mask_list
[i
++] = ScrollLockMask
;
171 mask_list
[i
++] = ScrollLockMask
| LockMask
;
172 mask_list
[i
++] = ScrollLockMask
| NumLockMask
;
173 mask_list
[i
++] = ScrollLockMask
| LockMask
| NumLockMask
;
174 g_assert(i
== MASK_LIST_SIZE
);
177 void grab_shutdown(gboolean reconfig
)
179 if (reconfig
) return;
181 while (grab_keyboard(FALSE
));
182 while (grab_pointer(FALSE
, OB_CURSOR_NONE
));
183 while (grab_pointer_window(FALSE
, OB_CURSOR_NONE
, None
));
184 while (grab_server(FALSE
));
187 void grab_button_full(guint button
, guint state
, Window win
, guint mask
,
188 gint pointer_mode
, ObCursor cur
)
192 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
193 xerror_occured
= FALSE
;
194 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
195 XGrabButton(ob_display
, button
, state
| mask_list
[i
], win
, FALSE
, mask
,
196 pointer_mode
, GrabModeSync
, None
, ob_cursor(cur
));
197 xerror_set_ignore(FALSE
);
199 g_warning("failed to grab button %d modifiers %d", button
, state
);
202 void grab_button(guint button
, guint state
, Window win
, guint mask
)
204 grab_button_full(button
, state
, win
, mask
, GrabModeAsync
, OB_CURSOR_NONE
);
207 void ungrab_button(guint button
, guint state
, Window win
)
211 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
212 XUngrabButton(ob_display
, button
, state
| mask_list
[i
], win
);
215 void grab_key(guint keycode
, guint state
, Window win
, gint keyboard_mode
)
219 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
220 xerror_occured
= FALSE
;
221 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
222 XGrabKey(ob_display
, keycode
, state
| mask_list
[i
], win
, FALSE
,
223 GrabModeAsync
, keyboard_mode
);
224 xerror_set_ignore(FALSE
);
226 g_warning("failed to grab keycode %d modifiers %d", keycode
, state
);
229 void ungrab_all_keys(Window win
)
231 XUngrabKey(ob_display
, AnyKey
, AnyModifier
, win
);
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