openbox/focus.c (raw)
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/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- focus.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 "debug.h" #include "event.h" #include "openbox.h" #include "grab.h" #include "client.h" #include "config.h" #include "focus_cycle.h" #include "screen.h" #include "prop.h" #include "keyboard.h" #include "focus.h" #include "stacking.h" #include <X11/Xlib.h> #include <glib.h> #define FOCUS_INDICATOR_WIDTH 6 ObClient *focus_client = NULL; GList *focus_order = NULL; void focus_startup(gboolean reconfig) { if (reconfig) return; /* start with nothing focused */ focus_nothing(); } void focus_shutdown(gboolean reconfig) { if (reconfig) return; /* reset focus to root */ XSetInputFocus(ob_display, PointerRoot, RevertToNone, CurrentTime); } static void push_to_top(ObClient *client) { focus_order = g_list_remove(focus_order, client); focus_order = g_list_prepend(focus_order, client); } void focus_set_client(ObClient *client) { Window active; ob_debug_type(OB_DEBUG_FOCUS, "focus_set_client 0x%lx\n", client ? client->window : 0); if (focus_client == client) return; /* uninstall the old colormap, and install the new one */ screen_install_colormap(focus_client, FALSE); screen_install_colormap(client, TRUE); /* in the middle of cycling..? kill it. */ focus_cycle_stop(); focus_client = client; if (client != NULL) { /* move to the top of the list */ push_to_top(client); /* remove hiliting from the window when it gets focused */ client_hilite(client, FALSE); } /* set the NET_ACTIVE_WINDOW hint, but preserve it on shutdown */ if (ob_state() != OB_STATE_EXITING) { active = client ? client->window : None; PROP_SET32(RootWindow(ob_display, ob_screen), net_active_window, window, active); } } static ObClient* focus_fallback_target(gboolean allow_refocus, ObClient *old) { GList *it; ObClient *c; ob_debug_type(OB_DEBUG_FOCUS, "trying pointer stuff\n"); if (config_focus_follow && !config_focus_last) if ((c = client_under_pointer()) && (allow_refocus || c != old) && (client_normal(c) && client_focus(c))) { ob_debug_type(OB_DEBUG_FOCUS, "found in pointer stuff\n"); return c; } ob_debug_type(OB_DEBUG_FOCUS, "trying the focus order\n"); for (it = focus_order; it; it = g_list_next(it)) { c = it->data; /* fallback focus to a window if: 1. it is on the current desktop. this ignores omnipresent windows, which are problematic in their own rite. 2. it is a normal type window, don't fall back onto a dock or a splashscreen or a desktop window (save the desktop as a backup fallback though) */ if (c->desktop == screen_desktop && client_normal(c) && (allow_refocus || c != old) && client_focus(c)) { ob_debug_type(OB_DEBUG_FOCUS, "found in focus order\n"); return c; } } ob_debug_type(OB_DEBUG_FOCUS, "trying a desktop window\n"); for (it = focus_order; it; it = g_list_next(it)) { c = it->data; /* fallback focus to a window if: 1. it is on the current desktop. this ignores omnipresent windows, which are problematic in their own rite. 2. it is a normal type window, don't fall back onto a dock or a splashscreen or a desktop window (save the desktop as a backup fallback though) */ if (c->type == OB_CLIENT_TYPE_DESKTOP && (allow_refocus || c != old) && client_focus(c)) { ob_debug_type(OB_DEBUG_FOCUS, "found a desktop window\n"); return c; } } return NULL; } ObClient* focus_fallback(gboolean allow_refocus) { ObClient *new; ObClient *old = focus_client; /* unfocus any focused clients.. they can be focused by Pointer events and such, and then when we try focus them, we won't get a FocusIn event at all for them. */ focus_nothing(); new = focus_fallback_target(allow_refocus, old); return new; } void focus_nothing() { /* Install our own colormap */ if (focus_client != NULL) { screen_install_colormap(focus_client, FALSE); screen_install_colormap(NULL, TRUE); } /* nothing is focused, update the colormap and _the root property_ */ focus_set_client(NULL); /* if there is a grab going on, then we need to cancel it. if we move focus during the grab, applications will get NotifyWhileGrabbed events and ignore them ! actions should not rely on being able to move focus during an interactive grab. */ if (keyboard_interactively_grabbed()) keyboard_interactive_cancel(); /* when nothing will be focused, send focus to the backup target */ XSetInputFocus(ob_display, screen_support_win, RevertToPointerRoot, event_curtime); } void focus_order_remove(ObClient *c) { focus_order = g_list_remove(focus_order, c); } void focus_order_to_top(ObClient *c) { focus_order = g_list_remove(focus_order, c); if (!c->iconic) { focus_order = g_list_prepend(focus_order, c); } else { GList *it; /* insert before first iconic window */ for (it = focus_order; it && !((ObClient*)it->data)->iconic; it = g_list_next(it)); focus_order = g_list_insert_before(focus_order, it, c); } } void focus_order_to_bottom(ObClient *c) { focus_order = g_list_remove(focus_order, c); if (c->iconic) { focus_order = g_list_append(focus_order, c); } else { GList *it; /* insert before first iconic window */ for (it = focus_order; it && !((ObClient*)it->data)->iconic; it = g_list_next(it)); focus_order = g_list_insert_before(focus_order, it, c); } } ObClient *focus_order_find_first(guint desktop) { GList *it; for (it = focus_order; it; it = g_list_next(it)) { ObClient *c = it->data; if (c->desktop == desktop || c->desktop == DESKTOP_ALL) return c; } return NULL; } |