+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ grab.c for the Openbox window manager
+ Copyright (c) 2006 Mikael Magnusson
+ Copyright (c) 2003-2007 Dana Jansens
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include "grab.h"
#include "openbox.h"
+#include "event.h"
+#include "screen.h"
+#include "debug.h"
+#include "obt/display.h"
+#include "obt/keyboard.h"
+
#include <glib.h>
#include <X11/Xlib.h>
-static guint kgrabs, pgrabs;
+#define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
+#define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask)
+
+#define MASK_LIST_SIZE 8
+
+/*! A list of all possible combinations of keyboard lock masks */
+static guint mask_list[MASK_LIST_SIZE];
+static guint kgrabs = 0;
+static guint pgrabs = 0;
+/*! The time at which the last grab was made */
+static Time grab_time = CurrentTime;
+static gint passive_count = 0;
+
+static Time ungrab_time(void)
+{
+ Time t = event_curtime;
+ if (grab_time == CurrentTime ||
+ !(t == CurrentTime || event_time_after(t, grab_time)))
+ /* When the time moves backward on the server, then we can't use
+ the grab time because that will be in the future. So instead we
+ have to use CurrentTime.
+
+ "XUngrabPointer does not release the pointer if the specified time
+ is earlier than the last-pointer-grab time or is later than the
+ current X server time."
+ */
+ t = CurrentTime; /*grab_time;*/
+ return t;
+}
+
+gboolean grab_on_keyboard(void)
+{
+ return kgrabs > 0;
+}
-void grab_keyboard(gboolean grab)
+gboolean grab_on_pointer(void)
{
+ return pgrabs > 0;
+}
+
+gboolean grab_keyboard_full(gboolean grab)
+{
+ gboolean ret = FALSE;
+
if (grab) {
- if (kgrabs++ == 0)
- XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, GrabModeSync,
- CurrentTime);
+ if (kgrabs++ == 0) {
+ ret = XGrabKeyboard(obt_display, obt_root(ob_screen),
+ False, GrabModeAsync, GrabModeAsync,
+ event_curtime) == Success;
+ if (!ret)
+ --kgrabs;
+ else {
+ passive_count = 0;
+ grab_time = event_curtime;
+ }
+ } else
+ ret = TRUE;
} else if (kgrabs > 0) {
- if (--kgrabs == 0)
- XUngrabKeyboard(ob_display, CurrentTime);
+ if (--kgrabs == 0) {
+ XUngrabKeyboard(obt_display, ungrab_time());
+ }
+ ret = TRUE;
}
+
+ return ret;
}
-void grab_pointer(gboolean grab, Cursor cur)
+gboolean grab_pointer_full(gboolean grab, gboolean owner_events,
+ gboolean confine, ObCursor cur)
{
+ gboolean ret = FALSE;
+
if (grab) {
- if (pgrabs++ == 0)
- XGrabPointer(ob_display, ob_root, False, 0, GrabModeAsync,
- GrabModeSync, FALSE, cur, CurrentTime);
+ if (pgrabs++ == 0) {
+ ret = XGrabPointer(obt_display, screen_support_win, owner_events,
+ GRAB_PTR_MASK,
+ GrabModeAsync, GrabModeAsync,
+ (confine ? obt_root(ob_screen) : None),
+ ob_cursor(cur), event_curtime) == Success;
+ if (!ret)
+ --pgrabs;
+ else
+ grab_time = event_curtime;
+ } else
+ ret = TRUE;
} else if (pgrabs > 0) {
- if (--pgrabs == 0)
- XUngrabPointer(ob_display, CurrentTime);
+ if (--pgrabs == 0) {
+ XUngrabPointer(obt_display, ungrab_time());
+ }
+ ret = TRUE;
}
+ return ret;
}
-void grab_startup()
+gint grab_server(gboolean grab)
{
- kgrabs = pgrabs = 0;
+ static guint sgrabs = 0;
+ if (grab) {
+ if (sgrabs++ == 0) {
+ XGrabServer(obt_display);
+ XSync(obt_display, FALSE);
+ }
+ } else if (sgrabs > 0) {
+ if (--sgrabs == 0) {
+ XUngrabServer(obt_display);
+ XFlush(obt_display);
+ }
+ }
+ return sgrabs;
}
-void grab_shutdown()
+void grab_startup(gboolean reconfig)
{
- while (kgrabs) grab_keyboard(FALSE);
- while (pgrabs) grab_pointer(FALSE, None);
+ guint i = 0;
+ guint num, caps, scroll;
+
+ num = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_NUMLOCK);
+ caps = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_CAPSLOCK);
+ scroll = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_SCROLLLOCK);
+
+ mask_list[i++] = 0;
+ mask_list[i++] = num;
+ mask_list[i++] = caps;
+ mask_list[i++] = scroll;
+ mask_list[i++] = num | caps;
+ mask_list[i++] = num | scroll;
+ mask_list[i++] = caps | scroll;
+ mask_list[i++] = num | caps | scroll;
+ g_assert(i == MASK_LIST_SIZE);
+}
+
+void grab_shutdown(gboolean reconfig)
+{
+ if (reconfig) return;
+
+ while (ungrab_keyboard());
+ while (ungrab_pointer());
+ while (grab_server(FALSE));
+}
+
+void grab_button_full(guint button, guint state, Window win, guint mask,
+ gint pointer_mode, ObCursor cur)
+{
+ guint i;
+
+ /* can get BadAccess from these */
+ obt_display_ignore_errors(TRUE);
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XGrabButton(obt_display, button, state | mask_list[i], win, False,
+ mask, pointer_mode, GrabModeAsync, None, ob_cursor(cur));
+ obt_display_ignore_errors(FALSE);
+ if (obt_display_error_occured)
+ ob_debug("Failed to grab button %d modifiers %d", button, state);
+}
+
+void ungrab_button(guint button, guint state, Window win)
+{
+ guint i;
+
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XUngrabButton(obt_display, button, state | mask_list[i], win);
+}
+
+void grab_key(guint keycode, guint state, Window win, gint keyboard_mode)
+{
+ guint i;
+
+ /* can get BadAccess' from these */
+ obt_display_ignore_errors(TRUE);
+ for (i = 0; i < MASK_LIST_SIZE; ++i)
+ XGrabKey(obt_display, keycode, state | mask_list[i], win, FALSE,
+ GrabModeAsync, keyboard_mode);
+ obt_display_ignore_errors(FALSE);
+ if (obt_display_error_occured)
+ ob_debug("Failed to grab keycode %d modifiers %d", keycode, state);
+}
+
+void ungrab_all_keys(Window win)
+{
+ XUngrabKey(obt_display, AnyKey, AnyModifier, win);
+}
+
+void grab_key_passive_count(int change)
+{
+ if (grab_on_keyboard()) return;
+ passive_count += change;
+ if (passive_count < 0) passive_count = 0;
+}
+
+void ungrab_passive_key(void)
+{
+ /*ob_debug("ungrabbing %d passive grabs\n", passive_count);*/
+ if (passive_count) {
+ /* kill our passive grab */
+ XUngrabKeyboard(obt_display, event_curtime);
+ passive_count = 0;
+ }
}
projects / dana / openbox.git / blobdiff