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 gboolean grab_on_keyboard()
46 gboolean grab_on_pointer()
51 gboolean grab_keyboard(gboolean grab)
57 ret = XGrabKeyboard(ob_display, RootWindow(ob_display, ob_screen),
58 FALSE, GrabModeAsync, GrabModeAsync,
59 event_curtime) == Success;
63 grab_time = event_curtime;
66 } else if (kgrabs > 0) {
68 Time t = event_curtime;
69 if (t != 0 && t < grab_time)
71 XUngrabKeyboard(ob_display, t);
79 gboolean grab_pointer(gboolean grab, ObCursor cur)
85 ret = XGrabPointer(ob_display, screen_support_win,
86 False, GRAB_PTR_MASK, GrabModeAsync,
88 ob_cursor(cur), event_curtime) == Success;
92 grab_time = event_curtime;
95 } else if (pgrabs > 0) {
97 Time t = event_curtime;
98 if (t != 0 && t < grab_time)
100 XUngrabPointer(ob_display, event_curtime);
107 gboolean grab_pointer_window(gboolean grab, ObCursor cur, Window win)
109 gboolean ret = FALSE;
113 ret = XGrabPointer(ob_display, win, False, GRAB_PTR_MASK,
114 GrabModeAsync, GrabModeAsync, None,
116 event_curtime) == Success;
120 grab_time = event_curtime;
123 } else if (pgrabs > 0) {
125 Time t = event_curtime;
126 if (t != 0 && t < grab_time)
128 XUngrabPointer(ob_display, event_curtime);
135 gint grab_server(gboolean grab)
137 static guint sgrabs = 0;
140 XGrabServer(ob_display);
141 XSync(ob_display, FALSE);
143 } else if (sgrabs > 0) {
145 XUngrabServer(ob_display);
152 void grab_startup(gboolean reconfig)
156 if (reconfig) return;
159 mask_list[i++] = LockMask;
160 mask_list[i++] = NumLockMask;
161 mask_list[i++] = LockMask | NumLockMask;
162 mask_list[i++] = ScrollLockMask;
163 mask_list[i++] = ScrollLockMask | LockMask;
164 mask_list[i++] = ScrollLockMask | NumLockMask;
165 mask_list[i++] = ScrollLockMask | LockMask | NumLockMask;
166 g_assert(i == MASK_LIST_SIZE);
169 void grab_shutdown(gboolean reconfig)
171 if (reconfig) return;
173 while (grab_keyboard(FALSE));
174 while (grab_pointer(FALSE, OB_CURSOR_NONE));
175 while (grab_pointer_window(FALSE, OB_CURSOR_NONE, None));
176 while (grab_server(FALSE));
179 void grab_button_full(guint button, guint state, Window win, guint mask,
180 gint pointer_mode, ObCursor cur)
184 xerror_set_ignore(TRUE); /* can get BadAccess' from these */
185 xerror_occured = FALSE;
186 for (i = 0; i < MASK_LIST_SIZE; ++i)
187 XGrabButton(ob_display, button, state | mask_list[i], win, FALSE, mask,
188 pointer_mode, GrabModeSync, None, ob_cursor(cur));
189 xerror_set_ignore(FALSE);
191 g_warning("failed to grab button %d modifiers %d", button, state);
194 void grab_button(guint button, guint state, Window win, guint mask)
196 grab_button_full(button, state, win, mask, GrabModeAsync, OB_CURSOR_NONE);
199 void ungrab_button(guint button, guint state, Window win)
203 for (i = 0; i < MASK_LIST_SIZE; ++i)
204 XUngrabButton(ob_display, button, state | mask_list[i], win);
207 void grab_key(guint keycode, guint state, Window win, gint keyboard_mode)
211 xerror_set_ignore(TRUE); /* can get BadAccess' from these */
212 xerror_occured = FALSE;
213 for (i = 0; i < MASK_LIST_SIZE; ++i)
214 XGrabKey(ob_display, keycode, state | mask_list[i], win, FALSE,
215 GrabModeAsync, keyboard_mode);
216 xerror_set_ignore(FALSE);
218 g_warning("failed to grab keycode %d modifiers %d", keycode, state);
221 void ungrab_all_keys(Window win)
223 XUngrabKey(ob_display, AnyKey, AnyModifier, win);