X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=openbox%2Fgrab.c;h=b6a7a9392fb43c8a039bac6fe9425fa8a0a20bca;hb=3db93a6ab5801ad8f8b67c54cdc8942e08a540aa;hp=63127117f985a8535d165429db552f44e84803c9;hpb=4bcd03b2d0904e2b5443a2383b66055422240255;p=chaz%2Fopenbox diff --git a/openbox/grab.c b/openbox/grab.c index 63127117..b6a7a939 100644 --- a/openbox/grab.c +++ b/openbox/grab.c @@ -1,35 +1,125 @@ +/* -*- 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 "modkeys.h" #include "openbox.h" +#include "event.h" +#include "xerror.h" +#include "screen.h" +#include "debug.h" + #include #include -static guint kgrabs, pgrabs, sgrabs; +#define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask) +#define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask) -void grab_keyboard(gboolean grab) +#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 Time ungrab_time() { + 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() +{ + return kgrabs > 0; +} + +gboolean grab_on_pointer() +{ + return pgrabs > 0; +} + +gboolean grab_keyboard(gboolean grab) +{ + gboolean ret = FALSE; + if (grab) { - if (kgrabs++ == 0) - XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, GrabModeSync, - CurrentTime); + if (kgrabs++ == 0) { + ret = XGrabKeyboard(ob_display, RootWindow(ob_display, ob_screen), + False, GrabModeAsync, GrabModeAsync, + event_curtime) == Success; + if (!ret) + --kgrabs; + else + grab_time = event_curtime; + } else + ret = TRUE; } else if (kgrabs > 0) { - if (--kgrabs == 0) - XUngrabKeyboard(ob_display, CurrentTime); + if (--kgrabs == 0) { + XUngrabKeyboard(ob_display, ungrab_time()); + } + ret = TRUE; } + + return ret; } -void grab_pointer(gboolean grab, Cursor cur) +gboolean grab_pointer(gboolean grab, gboolean owner_events, ObCursor cur) { + gboolean ret = FALSE; + if (grab) { - if (pgrabs++ == 0) - XGrabPointer(ob_display, ob_root, False, 0, GrabModeAsync, - GrabModeAsync, FALSE, cur, CurrentTime); + if (pgrabs++ == 0) { + ret = XGrabPointer(ob_display, screen_support_win, owner_events, + GRAB_PTR_MASK, + GrabModeAsync, GrabModeAsync, 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(ob_display, ungrab_time()); + } + ret = TRUE; } + return ret; } -void grab_server(gboolean grab) +gint grab_server(gboolean grab) { + static guint sgrabs = 0; if (grab) { if (sgrabs++ == 0) { XGrabServer(ob_display); @@ -41,16 +131,76 @@ void grab_server(gboolean grab) XFlush(ob_display); } } + return sgrabs; +} + +void grab_startup(gboolean reconfig) +{ + guint i = 0; + guint num, caps, scroll; + + num = modkeys_key_to_mask(OB_MODKEY_KEY_NUMLOCK); + caps = modkeys_key_to_mask(OB_MODKEY_KEY_CAPSLOCK); + scroll = modkeys_key_to_mask(OB_MODKEY_KEY_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 (grab_keyboard(FALSE)); + while (grab_pointer(FALSE, FALSE, OB_CURSOR_NONE)); + while (grab_server(FALSE)); +} + +void grab_button_full(guint button, guint state, Window win, guint mask, + gint 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, GrabModeAsync, None, ob_cursor(cur)); + xerror_set_ignore(FALSE); + if (xerror_occured) + ob_debug("Failed to grab button %d modifiers %d", button, state); } -void grab_startup() +void ungrab_button(guint button, guint state, Window win) { - kgrabs = pgrabs = sgrabs = 0; + 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, gint 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) + ob_debug("Failed to grab keycode %d modifiers %d", keycode, state); } -void grab_shutdown() +void ungrab_all_keys(Window win) { - while (kgrabs) grab_keyboard(FALSE); - while (pgrabs) grab_pointer(FALSE, None); - while (sgrabs) grab_server(FALSE); + XUngrabKey(ob_display, AnyKey, AnyModifier, win); }