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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) 2003 Ben Jansens
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 See the COPYING file for a copy of the GNU General Public License.
28 #define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
29 #define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask)
31 #define MASK_LIST_SIZE 8
33 /*! A list of all possible combinations of keyboard lock masks */
34 static unsigned int mask_list
[MASK_LIST_SIZE
];
35 static guint kgrabs
= 0;
36 static guint pgrabs
= 0;
38 gboolean
grab_on_keyboard()
43 gboolean
grab_on_pointer()
48 gboolean
grab_keyboard(gboolean grab
)
54 ret
= XGrabKeyboard(ob_display
, RootWindow(ob_display
, ob_screen
),
55 FALSE
, GrabModeAsync
, GrabModeAsync
,
56 event_lasttime
) == Success
;
59 } else if (kgrabs
> 0) {
61 XUngrabKeyboard(ob_display
, event_lasttime
);
68 gboolean
grab_pointer(gboolean grab
, ObCursor cur
)
74 ret
= XGrabPointer(ob_display
, screen_support_win
,
75 False
, GRAB_PTR_MASK
, GrabModeAsync
,
77 ob_cursor(cur
), event_lasttime
) == Success
;
80 } else if (pgrabs
> 0) {
82 XUngrabPointer(ob_display
, event_lasttime
);
84 /* ignore all enter events caused by ungrabbing the pointer */
86 GSList
*saved
= NULL
, *it
;
90 XSync(ob_display
, FALSE
);
92 /* count the events */
95 if (XCheckTypedEvent(ob_display
, EnterNotify
, e
)) {
96 saved
= g_slist_append(saved
, e
);
103 /* put the events back */
104 for (it
= saved
; it
; it
= g_slist_next(it
)) {
105 XPutBackEvent(ob_display
, it
->data
);
109 /* ignore the events */
110 event_ignore_enter_focus(n
);
118 gboolean
grab_pointer_window(gboolean grab
, ObCursor cur
, Window win
)
120 gboolean ret
= FALSE
;
124 ret
= XGrabPointer(ob_display
, win
, False
, GRAB_PTR_MASK
,
125 GrabModeAsync
, GrabModeAsync
, TRUE
,
127 event_lasttime
) == Success
;
130 } else if (pgrabs
> 0) {
132 XUngrabPointer(ob_display
, event_lasttime
);
138 gint
grab_server(gboolean grab
)
140 static guint sgrabs
= 0;
143 XGrabServer(ob_display
);
144 XSync(ob_display
, FALSE
);
146 } else if (sgrabs
> 0) {
148 XUngrabServer(ob_display
);
155 void grab_startup(gboolean reconfig
)
159 if (reconfig
) return;
162 mask_list
[i
++] = LockMask
;
163 mask_list
[i
++] = NumLockMask
;
164 mask_list
[i
++] = LockMask
| NumLockMask
;
165 mask_list
[i
++] = ScrollLockMask
;
166 mask_list
[i
++] = ScrollLockMask
| LockMask
;
167 mask_list
[i
++] = ScrollLockMask
| NumLockMask
;
168 mask_list
[i
++] = ScrollLockMask
| LockMask
| NumLockMask
;
169 g_assert(i
== MASK_LIST_SIZE
);
172 void grab_shutdown(gboolean reconfig
)
174 if (reconfig
) return;
176 while (grab_keyboard(FALSE
));
177 while (grab_pointer(FALSE
, OB_CURSOR_NONE
));
178 while (grab_pointer_window(FALSE
, OB_CURSOR_NONE
, None
));
179 while (grab_server(FALSE
));
182 void grab_button_full(guint button
, guint state
, Window win
, guint mask
,
183 int pointer_mode
, ObCursor cur
)
187 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
188 xerror_occured
= FALSE
;
189 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
190 XGrabButton(ob_display
, button
, state
| mask_list
[i
], win
, FALSE
, mask
,
191 pointer_mode
, GrabModeSync
, None
, ob_cursor(cur
));
192 xerror_set_ignore(FALSE
);
194 g_warning("failed to grab button %d modifiers %d", button
, state
);
197 void grab_button(guint button
, guint state
, Window win
, guint mask
)
199 grab_button_full(button
, state
, win
, mask
, GrabModeAsync
, OB_CURSOR_NONE
);
202 void ungrab_button(guint button
, guint state
, Window win
)
206 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
207 XUngrabButton(ob_display
, button
, state
| mask_list
[i
], win
);
210 void grab_key(guint keycode
, guint state
, Window win
, int keyboard_mode
)
214 xerror_set_ignore(TRUE
); /* can get BadAccess' from these */
215 xerror_occured
= FALSE
;
216 for (i
= 0; i
< MASK_LIST_SIZE
; ++i
)
217 XGrabKey(ob_display
, keycode
, state
| mask_list
[i
], win
, FALSE
,
218 GrabModeAsync
, keyboard_mode
);
219 xerror_set_ignore(FALSE
);
221 g_warning("failed to grab keycode %d modifiers %d", keycode
, state
);
224 void ungrab_all_keys(Window win
)
226 XUngrabKey(ob_display
, AnyKey
, AnyModifier
, win
);
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