+ static guint pgrabs = 0;
+ gboolean ret = FALSE;
+
+ if (grab) {
+ if (pgrabs++ == 0)
+ ret = XGrabPointer(ob_display, win, False, GRAB_PTR_MASK,
+ GrabModeAsync, GrabModeAsync, TRUE,
+ ob_cursor(cur),
+ event_lasttime) == Success;
+ else
+ ret = TRUE;
+ } else if (pgrabs > 0) {
+ if (--pgrabs == 0)
+ XUngrabPointer(ob_display, event_lasttime);
+ ret = TRUE;
+ }
+ return ret;
+}
+
+gint grab_server(gboolean grab)
+{
+ static guint sgrabs = 0;
+ if (grab) {
+ if (sgrabs++ == 0) {
+ XGrabServer(ob_display);
+ XSync(ob_display, FALSE);
+ }
+ } else if (sgrabs > 0) {
+ if (--sgrabs == 0) {
+ XUngrabServer(ob_display);
+ XFlush(ob_display);
+ }
+ }
+ return sgrabs;
+}
+
+void grab_startup(gboolean reconfig)
+{
+ guint i = 0;
+
+ if (reconfig) return;
+
+ mask_list[i++] = 0;
+ mask_list[i++] = LockMask;
+ mask_list[i++] = NumLockMask;
+ mask_list[i++] = LockMask | NumLockMask;
+ mask_list[i++] = ScrollLockMask;
+ mask_list[i++] = ScrollLockMask | LockMask;
+ mask_list[i++] = ScrollLockMask | NumLockMask;
+ mask_list[i++] = ScrollLockMask | LockMask | NumLockMask;
+ g_assert(i == MASK_LIST_SIZE);
+}
+
+void grab_shutdown(gboolean reconfig)
+{
+ if (reconfig) return;
+
+ while (grab_keyboard(FALSE));
+ while (grab_pointer(FALSE, OB_CURSOR_NONE));
+ while (grab_pointer_window(FALSE, OB_CURSOR_NONE, None));
+ while (grab_server(FALSE));
+}
+
+void grab_button_full(guint button, guint state, Window win, guint mask,
+ int pointer_mode, ObCursor cur)
+{
+ guint i;
+
+ xerror_set_ignore(TRUE); /* can get BadAccess' from these */
+ xerror_occured = FALSE;
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XGrabButton(ob_display, button, state | mask_list[i], win, FALSE, mask,
+ pointer_mode, GrabModeSync, None, ob_cursor(cur));
+ xerror_set_ignore(FALSE);
+ if (xerror_occured)
+ g_warning("failed to grab button %d modifiers %d", button, state);
+}
+
+void grab_button(guint button, guint state, Window win, guint mask)
+{
+ grab_button_full(button, state, win, mask, GrabModeAsync, OB_CURSOR_NONE);
+}
+
+void ungrab_button(guint button, guint state, Window win)
+{
+ guint i;
+
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XUngrabButton(ob_display, button, state | mask_list[i], win);
+}
+
+void grab_key(guint keycode, guint state, Window win, int keyboard_mode)
+{
+ guint i;
+
+ xerror_set_ignore(TRUE); /* can get BadAccess' from these */
+ xerror_occured = FALSE;
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XGrabKey(ob_display, keycode, state | mask_list[i], win, FALSE,
+ GrabModeAsync, keyboard_mode);
+ xerror_set_ignore(FALSE);
+ if (xerror_occured)
+ g_warning("failed to grab keycode %d modifiers %d", keycode, state);