X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=openbox%2Fgrab.c;h=a8a6200efa246b62e12bce1192ac90427789b37d;hb=854b2ae68498133f3119ec614b725025af3fd66b;hp=0f21a40f5bbffef059bb1c2203c6751509593cb2;hpb=4f101c1fb450b6d39f6284262ffe25c2c75cfb5c;p=chaz%2Fopenbox diff --git a/openbox/grab.c b/openbox/grab.c index 0f21a40f..a8a6200e 100644 --- a/openbox/grab.c +++ b/openbox/grab.c @@ -1,48 +1,148 @@ +/* -*- 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 Ben 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 "xerror.h" +#include "screen.h" #include #include -static guint kgrabs, pgrabs, sgrabs; +#define GRAB_PTR_MASK (ButtonPressMask | ButtonReleaseMask | \ + PointerMotionMask | EnterWindowMask | LeaveWindowMask) +#define GRAB_KEY_MASK (KeyPressMask | KeyReleaseMask) #define MASK_LIST_SIZE 8 /*! A list of all possible combinations of keyboard lock masks */ -static unsigned int mask_list[MASK_LIST_SIZE]; +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 (!(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; +} -void grab_keyboard(gboolean grab) +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) { - g_message("GRABBING KEYBOARD %d", kgrabs); - XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, GrabModeSync, - event_lasttime); + ret = XGrabKeyboard(ob_display, RootWindow(ob_display, ob_screen), + FALSE, GrabModeAsync, GrabModeAsync, + event_curtime) == Success; + if (!ret) + --kgrabs; + else + grab_time = event_curtime; } else - g_message("NOT GRABBING KEYBOARD %d", kgrabs); + ret = TRUE; } else if (kgrabs > 0) { if (--kgrabs == 0) { - g_message("UNGRABBING KEYBOARD %d", kgrabs); - XUngrabKeyboard(ob_display, CurrentTime); + XUngrabKeyboard(ob_display, ungrab_time()); + } + ret = TRUE; + } + + return ret; +} + +gboolean grab_pointer(gboolean grab, ObCursor cur) +{ + gboolean ret = FALSE; + + if (grab) { + if (pgrabs++ == 0) { + ret = XGrabPointer(ob_display, screen_support_win, + True, GRAB_PTR_MASK, GrabModeAsync, + GrabModeAsync, None, + ob_cursor(cur), event_curtime) == Success; + if (!ret) + --pgrabs; + else + grab_time = event_curtime; } else - g_message("NOT UNGRABBING KEYBOARD %d", kgrabs); + ret = TRUE; + } else if (pgrabs > 0) { + if (--pgrabs == 0) { + XUngrabPointer(ob_display, ungrab_time()); + } + ret = TRUE; } + return ret; } -void grab_pointer(gboolean grab, Cursor cur) +gboolean grab_pointer_window(gboolean grab, ObCursor cur, Window win) { + gboolean ret = FALSE; + if (grab) { - if (pgrabs++ == 0) - XGrabPointer(ob_display, ob_root, False, 0, GrabModeAsync, - GrabModeAsync, FALSE, cur, event_lasttime); + if (pgrabs++ == 0) { + ret = XGrabPointer(ob_display, win, True, 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); @@ -54,13 +154,14 @@ void grab_server(gboolean grab) XFlush(ob_display); } } + return sgrabs; } -void grab_startup() +void grab_startup(gboolean reconfig) { guint i = 0; - kgrabs = pgrabs = sgrabs = 0; + if (reconfig) return; mask_list[i++] = 0; mask_list[i++] = LockMask; @@ -73,21 +174,34 @@ void grab_startup() g_assert(i == MASK_LIST_SIZE); } -void grab_shutdown() +void grab_shutdown(gboolean reconfig) { - while (kgrabs) grab_keyboard(FALSE); - while (pgrabs) grab_pointer(FALSE, None); - while (sgrabs) grab_server(FALSE); + 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(guint button, guint state, Window win, guint mask, - int pointer_mode) +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, None); + 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) @@ -98,16 +212,21 @@ void ungrab_button(guint button, guint state, Window win) XUngrabButton(ob_display, button, state | mask_list[i], win); } -void grab_key(guint keycode, guint state, int keyboard_mode) +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], ob_root, FALSE, + 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); } -void ungrab_all_keys() +void ungrab_all_keys(Window win) { - XUngrabKey(ob_display, AnyKey, AnyModifier, ob_root); + XUngrabKey(ob_display, AnyKey, AnyModifier, win); }