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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 | PointerMotionMask)
30 #define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask)
32 #define MASK_LIST_SIZE 8
34 /*! A list of all possible combinations of keyboard lock masks */
35 static guint mask_list
[MASK_LIST_SIZE
];
36 static guint kgrabs
= 0;
37 static guint pgrabs
= 0;
38 /*! The time at which the last grab was made */
39 static Time grab_time
= CurrentTime
;
41 static Time
ungrab_time()
43 Time t
= event_curtime
;
44 if (!(t
== CurrentTime
|| event_time_after(t
, grab_time
)))
45 /* When the time moves backward on the server, then we can't use
46 the grab time because that will be in the future. So instead we
47 have to use CurrentTime.
49 "XUngrabPointer does not release the pointer if the specified time
50 is earlier than the last-pointer-grab time or is later than the
51 current X server time."
53 t
= CurrentTime
; /*grab_time;*/
57 gboolean
grab_on_keyboard()
62 gboolean
grab_on_pointer()
67 gboolean
grab_keyboard(gboolean grab
)
73 ret
= XGrabKeyboard(ob_display
, RootWindow(ob_display
, ob_screen
),
74 FALSE
, GrabModeAsync
, GrabModeAsync
,
75 event_curtime
) == Success
;
79 grab_time
= event_curtime
;
82 } else if (kgrabs
> 0) {
84 XUngrabKeyboard(ob_display
, ungrab_time());
92 gboolean
grab_pointer(gboolean grab
, ObCursor cur
)
98 ret
= XGrabPointer(ob_display
, screen_support_win
,
99 False
, GRAB_PTR_MASK
, GrabModeAsync
,
101 ob_cursor(cur
), event_curtime
) == Success
;
105 grab_time
= event_curtime
;
108 } else if (pgrabs
> 0) {
110 XUngrabPointer(ob_display
, ungrab_time());
117 gboolean
grab_pointer_window(gboolean grab
, ObCursor cur
, Window win
)
119 gboolean ret
= FALSE
;
123 ret
= XGrabPointer(ob_display
, win
, False
, GRAB_PTR_MASK
,
124 GrabModeAsync
, GrabModeAsync
, None
,
126 event_curtime
) == Success
;
130 grab_time
= event_curtime
;
133 } else if (pgrabs
> 0) {
135 XUngrabPointer(ob_display
, ungrab_time());
142 gint
grab_server(gboolean grab
)
144 static guint sgrabs
= 0;
147 XGrabServer(ob_display
);
148 XSync(ob_display
, FALSE
);
150 } else if (sgrabs
> 0) {
152 XUngrabServer(ob_display
);
159 void grab_startup(gboolean reconfig
)
163 if (reconfig
) return;
166 mask_list
[i
++] = LockMask
;
167 mask_list
[i
++] = NumLockMask
;
168 mask_list
[i
++] = LockMask
| NumLockMask
;
169 mask_list
[i
++] = ScrollLockMask
;
170 mask_list
[i
++] = ScrollLockMask
| LockMask
;
171 mask_list
[i
++] = ScrollLockMask
| NumLockMask
;
172 mask_list
[i
++] = ScrollLockMask
| LockMask
| NumLockMask
;
173 g_assert(i
== MASK_LIST_SIZE
);
176 void grab_shutdown(gboolean reconfig
)
178 if (reconfig
) return;
180 while (grab_keyboard(FALSE
));
181 while (grab_pointer(FALSE
, OB_CURSOR_NONE
));
182 while (grab_pointer_window(FALSE
, OB_CURSOR_NONE
, None
));
183 while (grab_server(FALSE
));
186 void grab_button_full(guint button
, guint state
, Window win
, guint mask
,
187 gint pointer_mode
, ObCursor cur
)
191 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
192 xerror_occured
= FALSE
;
193 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
194 XGrabButton(ob_display
, button
, state
| mask_list
[i
], win
, FALSE
, mask
,
195 pointer_mode
, GrabModeSync
, None
, ob_cursor(cur
));
196 xerror_set_ignore(FALSE
);
198 g_warning("failed to grab button %d modifiers %d", button
, state
);
201 void grab_button(guint button
, guint state
, Window win
, guint mask
)
203 grab_button_full(button
, state
, win
, mask
, GrabModeAsync
, OB_CURSOR_NONE
);
206 void ungrab_button(guint button
, guint state
, Window win
)
210 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
211 XUngrabButton(ob_display
, button
, state
| mask_list
[i
], win
);
214 void grab_key(guint keycode
, guint state
, Window win
, gint keyboard_mode
)
218 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
219 xerror_occured
= FALSE
;
220 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
221 XGrabKey(ob_display
, keycode
, state
| mask_list
[i
], win
, FALSE
,
222 GrabModeAsync
, keyboard_mode
);
223 xerror_set_ignore(FALSE
);
225 g_warning("failed to grab keycode %d modifiers %d", keycode
, state
);
228 void ungrab_all_keys(Window win
)
230 XUngrabKey(ob_display
, AnyKey
, AnyModifier
, win
);
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