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 == 0 || event_time_after(t, grab_time)))
49 gboolean grab_on_keyboard()
54 gboolean grab_on_pointer()
59 gboolean grab_keyboard(gboolean grab)
65 ret = XGrabKeyboard(ob_display, RootWindow(ob_display, ob_screen),
66 FALSE, GrabModeAsync, GrabModeAsync,
67 event_curtime) == Success;
71 grab_time = event_curtime;
74 } else if (kgrabs > 0) {
76 XUngrabKeyboard(ob_display, ungrab_time());
84 gboolean grab_pointer(gboolean grab, ObCursor cur)
90 ret = XGrabPointer(ob_display, screen_support_win,
91 False, GRAB_PTR_MASK, GrabModeAsync,
93 ob_cursor(cur), event_curtime) == Success;
97 grab_time = event_curtime;
100 } else if (pgrabs > 0) {
102 XUngrabPointer(ob_display, ungrab_time());
109 gboolean grab_pointer_window(gboolean grab, ObCursor cur, Window win)
111 gboolean ret = FALSE;
115 ret = XGrabPointer(ob_display, win, False, GRAB_PTR_MASK,
116 GrabModeAsync, GrabModeAsync, None,
118 event_curtime) == Success;
122 grab_time = event_curtime;
125 } else if (pgrabs > 0) {
127 XUngrabPointer(ob_display, ungrab_time());
134 gint grab_server(gboolean grab)
136 static guint sgrabs = 0;
139 XGrabServer(ob_display);
140 XSync(ob_display, FALSE);
142 } else if (sgrabs > 0) {
144 XUngrabServer(ob_display);
151 void grab_startup(gboolean reconfig)
155 if (reconfig) return;
158 mask_list[i++] = LockMask;
159 mask_list[i++] = NumLockMask;
160 mask_list[i++] = LockMask | NumLockMask;
161 mask_list[i++] = ScrollLockMask;
162 mask_list[i++] = ScrollLockMask | LockMask;
163 mask_list[i++] = ScrollLockMask | NumLockMask;
164 mask_list[i++] = ScrollLockMask | LockMask | NumLockMask;
165 g_assert(i == MASK_LIST_SIZE);
168 void grab_shutdown(gboolean reconfig)
170 if (reconfig) return;
172 while (grab_keyboard(FALSE));
173 while (grab_pointer(FALSE, OB_CURSOR_NONE));
174 while (grab_pointer_window(FALSE, OB_CURSOR_NONE, None));
175 while (grab_server(FALSE));
178 void grab_button_full(guint button, guint state, Window win, guint mask,
179 gint pointer_mode, ObCursor cur)
183 xerror_set_ignore(TRUE); /* can get BadAccess' from these */
184 xerror_occured = FALSE;
185 for (i = 0; i < MASK_LIST_SIZE; ++i)
186 XGrabButton(ob_display, button, state | mask_list[i], win, FALSE, mask,
187 pointer_mode, GrabModeSync, None, ob_cursor(cur));
188 xerror_set_ignore(FALSE);
190 g_warning("failed to grab button %d modifiers %d", button, state);
193 void grab_button(guint button, guint state, Window win, guint mask)
195 grab_button_full(button, state, win, mask, GrabModeAsync, OB_CURSOR_NONE);
198 void ungrab_button(guint button, guint state, Window win)
202 for (i = 0; i < MASK_LIST_SIZE; ++i)
203 XUngrabButton(ob_display, button, state | mask_list[i], win);
206 void grab_key(guint keycode, guint state, Window win, gint keyboard_mode)
210 xerror_set_ignore(TRUE); /* can get BadAccess' from these */
211 xerror_occured = FALSE;
212 for (i = 0; i < MASK_LIST_SIZE; ++i)
213 XGrabKey(ob_display, keycode, state | mask_list[i], win, FALSE,
214 GrabModeAsync, keyboard_mode);
215 xerror_set_ignore(FALSE);
217 g_warning("failed to grab keycode %d modifiers %d", keycode, state);
220 void ungrab_all_keys(Window win)
222 XUngrabKey(ob_display, AnyKey, AnyModifier, win);