937 lines
30 KiB
C
937 lines
30 KiB
C
/*
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* awesome.c - awesome main functions
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*
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* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include "awesome.h"
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#include "banning.h"
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#include "common/atoms.h"
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#include "common/backtrace.h"
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#include "common/version.h"
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#include "common/xutil.h"
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#include "xkb.h"
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#include "dbus.h"
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#include "event.h"
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#include "ewmh.h"
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#include "globalconf.h"
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#include "objects/client.h"
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#include "objects/screen.h"
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#include "spawn.h"
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#include "systray.h"
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#include "xwindow.h"
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#include "options.h"
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#include <getopt.h>
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#include <locale.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <xcb/bigreq.h>
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#include <xcb/randr.h>
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#include <xcb/xcb_atom.h>
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#include <xcb/xcb_aux.h>
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#include <xcb/xcb_event.h>
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#include <xcb/xinerama.h>
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#include <xcb/xtest.h>
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#include <xcb/shape.h>
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#include <xcb/xfixes.h>
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#include <xcb/composite.h>
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#include <xcb/damage.h>
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#include <glib-unix.h>
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awesome_t globalconf;
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/** argv used to run awesome */
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static char **awesome_argv;
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/** time of last main loop wakeup */
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static struct timeval last_wakeup;
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/** current limit for the main loop's runtime */
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static float main_loop_iteration_limit = 0.1;
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/** A pipe that is used to asynchronously handle SIGCHLD */
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static int sigchld_pipe[2];
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/* Initialise various random number generators */
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static void
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init_rng(void)
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{
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/* LuaJIT uses its own, internal RNG, so initialise that */
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lua_State *L = globalconf_get_lua_State();
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/* Get math.randomseed */
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lua_getglobal(L, "math");
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lua_getfield(L, -1, "randomseed");
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/* Push a seed */
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lua_pushnumber(L, g_random_int());
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/* Call math.randomseed */
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if(lua_pcall(L, 1, 0, 0))
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{
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warn("Random number generator initialization failed: %s", lua_tostring(L, -1));
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/* Remove error function and error string */
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lua_pop(L, 2);
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return;
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}
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/* Remove "math" global */
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lua_pop(L, 1);
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/* Lua 5.1, Lua 5.2, and (sometimes) Lua 5.3 use rand()/srand() */
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srand(g_random_int());
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/* When Lua 5.3 is built with LUA_USE_POSIX, it uses random()/srandom() */
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srandom(g_random_int());
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}
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/** Call before exiting.
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*/
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void
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awesome_atexit(bool restart)
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{
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lua_State *L = globalconf_get_lua_State();
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lua_pushboolean(L, restart);
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signal_object_emit(L, &global_signals, "exit", 1);
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/* Move clients where we want them to be and keep the stacking order intact */
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foreach(c, globalconf.stack)
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{
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area_t geometry = client_get_undecorated_geometry(*c);
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xcb_reparent_window(globalconf.connection, (*c)->window, globalconf.screen->root,
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geometry.x, geometry.y);
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}
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/* Save the client order. This is useful also for "hard" restarts. */
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xcb_window_t *wins = p_alloca(xcb_window_t, globalconf.clients.len);
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int n = 0;
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foreach(client, globalconf.clients)
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wins[n++] = (*client)->window;
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xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
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globalconf.screen->root,
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AWESOME_CLIENT_ORDER, XCB_ATOM_WINDOW, 32, n, wins);
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a_dbus_cleanup();
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systray_cleanup();
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/* Close Lua */
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lua_close(L);
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screen_cleanup();
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/* X11 is a great protocol. There is a save-set so that reparenting WMs
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* don't kill clients when they shut down. However, when a focused windows
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* is saved, the focus will move to its parent with revert-to none.
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* Immediately afterwards, this parent is destroyed and the focus is gone.
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* Work around this by placing the focus where we like it to be.
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*/
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xcb_set_input_focus(globalconf.connection, XCB_INPUT_FOCUS_POINTER_ROOT,
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XCB_NONE, globalconf.timestamp);
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xcb_aux_sync(globalconf.connection);
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xkb_free();
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/* Disconnect *after* closing lua */
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xcb_cursor_context_free(globalconf.cursor_ctx);
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#ifdef WITH_XCB_ERRORS
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xcb_errors_context_free(globalconf.errors_ctx);
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#endif
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xcb_disconnect(globalconf.connection);
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close(sigchld_pipe[0]);
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close(sigchld_pipe[1]);
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}
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/** Restore the client order after a restart */
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static void
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restore_client_order(xcb_get_property_cookie_t prop_cookie)
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{
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int client_idx = 0;
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xcb_window_t *windows;
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xcb_get_property_reply_t *reply;
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reply = xcb_get_property_reply(globalconf.connection, prop_cookie, NULL);
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if (!reply || reply->format != 32 || reply->value_len == 0) {
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p_delete(&reply);
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return;
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}
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windows = xcb_get_property_value(reply);
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for (uint32_t i = 0; i < reply->value_len; i++)
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/* Find windows[i] and swap it to where it belongs */
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foreach(c, globalconf.clients)
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if ((*c)->window == windows[i])
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{
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client_t *tmp = *c;
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*c = globalconf.clients.tab[client_idx];
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globalconf.clients.tab[client_idx] = tmp;
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client_idx++;
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}
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luaA_class_emit_signal(globalconf_get_lua_State(), &client_class, "list", 0);
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p_delete(&reply);
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}
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/** Scan X to find windows to manage.
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*/
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static void
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scan(xcb_query_tree_cookie_t tree_c)
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{
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int i, tree_c_len;
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xcb_query_tree_reply_t *tree_r;
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xcb_window_t *wins = NULL;
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xcb_get_window_attributes_reply_t *attr_r;
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xcb_get_geometry_reply_t *geom_r;
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xcb_get_property_cookie_t prop_cookie;
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tree_r = xcb_query_tree_reply(globalconf.connection,
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tree_c,
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NULL);
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if(!tree_r)
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return;
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/* This gets the property and deletes it */
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prop_cookie = xcb_get_property_unchecked(globalconf.connection, true,
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globalconf.screen->root, AWESOME_CLIENT_ORDER,
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XCB_ATOM_WINDOW, 0, UINT_MAX);
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/* Get the tree of the children windows of the current root window */
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if(!(wins = xcb_query_tree_children(tree_r)))
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fatal("cannot get tree children");
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tree_c_len = xcb_query_tree_children_length(tree_r);
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xcb_get_window_attributes_cookie_t attr_wins[tree_c_len];
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xcb_get_property_cookie_t state_wins[tree_c_len];
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xcb_get_geometry_cookie_t geom_wins[tree_c_len];
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for(i = 0; i < tree_c_len; i++)
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{
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attr_wins[i] = xcb_get_window_attributes_unchecked(globalconf.connection,
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wins[i]);
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state_wins[i] = xwindow_get_state_unchecked(wins[i]);
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geom_wins[i] = xcb_get_geometry_unchecked(globalconf.connection, wins[i]);
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}
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for(i = 0; i < tree_c_len; i++)
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{
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attr_r = xcb_get_window_attributes_reply(globalconf.connection,
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attr_wins[i],
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NULL);
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geom_r = xcb_get_geometry_reply(globalconf.connection, geom_wins[i], NULL);
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long state = xwindow_get_state_reply(state_wins[i]);
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if(!geom_r || !attr_r || attr_r->override_redirect
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|| attr_r->map_state == XCB_MAP_STATE_UNMAPPED
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|| state == XCB_ICCCM_WM_STATE_WITHDRAWN)
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{
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p_delete(&attr_r);
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p_delete(&geom_r);
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continue;
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}
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client_manage(wins[i], geom_r, attr_r);
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p_delete(&attr_r);
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p_delete(&geom_r);
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}
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p_delete(&tree_r);
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restore_client_order(prop_cookie);
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}
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static void
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acquire_WM_Sn(bool replace)
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{
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xcb_intern_atom_cookie_t atom_q;
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xcb_intern_atom_reply_t *atom_r;
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char *atom_name;
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xcb_get_selection_owner_reply_t *get_sel_reply;
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xcb_client_message_event_t ev;
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/* Get the WM_Sn atom */
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globalconf.selection_owner_window = xcb_generate_id(globalconf.connection);
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xcb_create_window(globalconf.connection, globalconf.screen->root_depth,
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globalconf.selection_owner_window, globalconf.screen->root,
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-1, -1, 1, 1, 0,
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XCB_COPY_FROM_PARENT, globalconf.screen->root_visual,
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0, NULL);
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xwindow_set_class_instance(globalconf.selection_owner_window);
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xwindow_set_name_static(globalconf.selection_owner_window,
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"Awesome WM_Sn selection owner window");
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atom_name = xcb_atom_name_by_screen("WM_S", globalconf.default_screen);
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if(!atom_name)
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fatal("error getting WM_Sn atom name");
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atom_q = xcb_intern_atom_unchecked(globalconf.connection, false,
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a_strlen(atom_name), atom_name);
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p_delete(&atom_name);
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atom_r = xcb_intern_atom_reply(globalconf.connection, atom_q, NULL);
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if(!atom_r)
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fatal("error getting WM_Sn atom");
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globalconf.selection_atom = atom_r->atom;
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p_delete(&atom_r);
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/* Is the selection already owned? */
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get_sel_reply = xcb_get_selection_owner_reply(globalconf.connection,
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xcb_get_selection_owner(globalconf.connection, globalconf.selection_atom),
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NULL);
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if (!get_sel_reply)
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fatal("GetSelectionOwner for WM_Sn failed");
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if (!replace && get_sel_reply->owner != XCB_NONE)
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fatal("another window manager is already running (selection owned; use --replace)");
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/* Acquire the selection */
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xcb_set_selection_owner(globalconf.connection, globalconf.selection_owner_window,
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globalconf.selection_atom, globalconf.timestamp);
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if (get_sel_reply->owner != XCB_NONE)
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{
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/* Wait for the old owner to go away */
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xcb_get_geometry_reply_t *geom_reply = NULL;
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do {
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p_delete(&geom_reply);
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geom_reply = xcb_get_geometry_reply(globalconf.connection,
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xcb_get_geometry(globalconf.connection, get_sel_reply->owner),
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NULL);
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} while (geom_reply != NULL);
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}
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p_delete(&get_sel_reply);
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/* Announce that we are the new owner */
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p_clear(&ev, 1);
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ev.response_type = XCB_CLIENT_MESSAGE;
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ev.window = globalconf.screen->root;
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ev.format = 32;
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ev.type = MANAGER;
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ev.data.data32[0] = globalconf.timestamp;
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ev.data.data32[1] = globalconf.selection_atom;
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ev.data.data32[2] = globalconf.selection_owner_window;
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ev.data.data32[3] = ev.data.data32[4] = 0;
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xcb_send_event(globalconf.connection, false, globalconf.screen->root, 0xFFFFFF, (char *) &ev);
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}
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static void
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acquire_timestamp(void)
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{
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/* Getting a current timestamp is hard. ICCCM recommends a zero-length
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* append to a property, so let's do that.
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*/
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xcb_generic_event_t *event;
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xcb_window_t win = globalconf.screen->root;
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xcb_atom_t atom = XCB_ATOM_RESOURCE_MANAGER; /* Just something random */
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xcb_atom_t type = XCB_ATOM_STRING; /* Equally random */
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xcb_grab_server(globalconf.connection);
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xcb_change_window_attributes(globalconf.connection, win,
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XCB_CW_EVENT_MASK, (uint32_t[]) { XCB_EVENT_MASK_PROPERTY_CHANGE });
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xcb_change_property(globalconf.connection, XCB_PROP_MODE_APPEND, win,
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atom, type, 8, 0, "");
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xcb_change_window_attributes(globalconf.connection, win,
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XCB_CW_EVENT_MASK, (uint32_t[]) { 0 });
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xutil_ungrab_server(globalconf.connection);
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/* Now wait for the event */
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while((event = xcb_wait_for_event(globalconf.connection)))
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{
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/* Is it the event we are waiting for? */
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if(XCB_EVENT_RESPONSE_TYPE(event) == XCB_PROPERTY_NOTIFY)
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{
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xcb_property_notify_event_t *ev = (void *) event;
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globalconf.timestamp = ev->time;
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p_delete(&event);
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break;
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}
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/* Hm, not the right event. */
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if (globalconf.pending_event != NULL)
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{
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event_handle(globalconf.pending_event);
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p_delete(&globalconf.pending_event);
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}
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globalconf.pending_event = event;
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}
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}
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static xcb_generic_event_t *poll_for_event(void)
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{
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if (globalconf.pending_event) {
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xcb_generic_event_t *event = globalconf.pending_event;
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globalconf.pending_event = NULL;
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return event;
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}
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return xcb_poll_for_event(globalconf.connection);
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}
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static void
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a_xcb_check(void)
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{
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xcb_generic_event_t *mouse = NULL, *event;
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while((event = poll_for_event()))
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{
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/* We will treat mouse events later.
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* We cannot afford to treat all mouse motion events,
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* because that would be too much CPU intensive, so we just
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* take the last we get after a bunch of events. */
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if(XCB_EVENT_RESPONSE_TYPE(event) == XCB_MOTION_NOTIFY)
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{
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p_delete(&mouse);
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mouse = event;
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}
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else
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{
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uint8_t type = XCB_EVENT_RESPONSE_TYPE(event);
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if(mouse && (type == XCB_ENTER_NOTIFY || type == XCB_LEAVE_NOTIFY
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|| type == XCB_BUTTON_PRESS || type == XCB_BUTTON_RELEASE))
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{
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/* Make sure enter/motion/leave/press/release events are handled
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* in the correct order */
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event_handle(mouse);
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p_delete(&mouse);
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}
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event_handle(event);
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p_delete(&event);
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}
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}
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if(mouse)
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{
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event_handle(mouse);
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p_delete(&mouse);
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}
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}
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static gboolean
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a_xcb_io_cb(GIOChannel *source, GIOCondition cond, gpointer data)
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{
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/* a_xcb_check() already handled all events */
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if(xcb_connection_has_error(globalconf.connection))
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fatal("X server connection broke (error %d)",
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xcb_connection_has_error(globalconf.connection));
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return TRUE;
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}
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static gint
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a_glib_poll(GPollFD *ufds, guint nfsd, gint timeout)
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{
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guint res;
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struct timeval now, length_time;
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float length;
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int saved_errno;
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lua_State *L = globalconf_get_lua_State();
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/* Do all deferred work now */
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awesome_refresh();
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/* Check if the Lua stack is the way it should be */
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if (lua_gettop(L) != 0) {
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warn("Something was left on the Lua stack, this is a bug!");
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luaA_dumpstack(L);
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lua_settop(L, 0);
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}
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/* Don't sleep if there is a pending event */
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assert(globalconf.pending_event == NULL);
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globalconf.pending_event = xcb_poll_for_event(globalconf.connection);
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if (globalconf.pending_event != NULL)
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timeout = 0;
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/* Check how long this main loop iteration took */
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gettimeofday(&now, NULL);
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timersub(&now, &last_wakeup, &length_time);
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length = length_time.tv_sec + length_time.tv_usec * 1.0f / 1e6;
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if (length > main_loop_iteration_limit) {
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warn("Last main loop iteration took %.6f seconds! Increasing limit for "
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"this warning to that value.", length);
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main_loop_iteration_limit = length;
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}
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/* Actually do the polling, record time of wakeup and check for new xcb events */
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res = g_poll(ufds, nfsd, timeout);
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saved_errno = errno;
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gettimeofday(&last_wakeup, NULL);
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a_xcb_check();
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errno = saved_errno;
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return res;
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}
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static void
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signal_fatal(int signum)
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{
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buffer_t buf;
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backtrace_get(&buf);
|
|
fatal("signal %d, dumping backtrace\n%s", signum, buf.s);
|
|
}
|
|
|
|
/* Signal handler for SIGCHLD. Causes reap_children() to be called. */
|
|
static void
|
|
signal_child(int signum)
|
|
{
|
|
assert(signum == SIGCHLD);
|
|
int res = write(sigchld_pipe[1], " ", 1);
|
|
(void) res;
|
|
assert(res == 1);
|
|
}
|
|
|
|
/* There was a SIGCHLD signal. Read from sigchld_pipe and reap children. */
|
|
static gboolean
|
|
reap_children(GIOChannel *channel, GIOCondition condition, gpointer user_data)
|
|
{
|
|
pid_t child;
|
|
int status;
|
|
char buffer[1024];
|
|
ssize_t result = read(sigchld_pipe[0], &buffer[0], sizeof(buffer));
|
|
if (result < 0)
|
|
fatal("Error reading from signal pipe: %s", strerror(errno));
|
|
|
|
while ((child = waitpid(-1, &status, WNOHANG)) > 0) {
|
|
spawn_child_exited(child, status);
|
|
}
|
|
if (child < 0 && errno != ECHILD)
|
|
warn("waitpid(-1) failed: %s", strerror(errno));
|
|
return TRUE;
|
|
}
|
|
|
|
/** Function to exit on some signals.
|
|
* \param data currently unused
|
|
*/
|
|
static gboolean
|
|
exit_on_signal(gpointer data)
|
|
{
|
|
g_main_loop_quit(globalconf.loop);
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
awesome_restart(void)
|
|
{
|
|
awesome_atexit(true);
|
|
execvp(awesome_argv[0], awesome_argv);
|
|
fatal("execv() failed: %s", strerror(errno));
|
|
}
|
|
|
|
/** Function to restart awesome on some signals.
|
|
* \param data currently unused
|
|
*/
|
|
static gboolean
|
|
restart_on_signal(gpointer data)
|
|
{
|
|
awesome_restart();
|
|
return TRUE;
|
|
}
|
|
|
|
static bool
|
|
true_config_callback(const char *unused)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/** Hello, this is main.
|
|
* \param argc Who knows.
|
|
* \param argv Who knows.
|
|
* \return EXIT_SUCCESS I hope.
|
|
*/
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
string_array_t searchpath;
|
|
int xfd;
|
|
xdgHandle xdg;
|
|
xcb_query_tree_cookie_t tree_c;
|
|
|
|
/* The default values for the init flags */
|
|
int default_init_flags = INIT_FLAG_NONE
|
|
| INIT_FLAG_ARGB
|
|
| INIT_FLAG_AUTO_SCREEN;
|
|
|
|
/* Make stdout/stderr line buffered. */
|
|
setvbuf(stdout, NULL, _IOLBF, 0);
|
|
setvbuf(stderr, NULL, _IOLBF, 0);
|
|
|
|
/* clear the globalconf structure */
|
|
p_clear(&globalconf, 1);
|
|
globalconf.keygrabber = LUA_REFNIL;
|
|
globalconf.mousegrabber = LUA_REFNIL;
|
|
globalconf.exit_code = EXIT_SUCCESS;
|
|
globalconf.api_level = awesome_default_api_level();
|
|
buffer_init(&globalconf.startup_errors);
|
|
string_array_init(&searchpath);
|
|
|
|
/* save argv */
|
|
awesome_argv = argv;
|
|
|
|
/* Text won't be printed correctly otherwise */
|
|
setlocale(LC_ALL, "");
|
|
|
|
char *confpath = options_detect_shebang(argc, argv);
|
|
|
|
/* if no shebang is detected, check the args. Shebang (#!) args are parsed later */
|
|
if (!confpath)
|
|
confpath = options_check_args(argc, argv, &default_init_flags, &searchpath);
|
|
|
|
/* Get XDG basedir data */
|
|
if(!xdgInitHandle(&xdg))
|
|
fatal("Function xdgInitHandle() failed, is $HOME unset?");
|
|
|
|
/* add XDG_CONFIG_DIR as include path */
|
|
const char * const *xdgconfigdirs = xdgSearchableConfigDirectories(&xdg);
|
|
for(; *xdgconfigdirs; xdgconfigdirs++)
|
|
{
|
|
/* Append /awesome to *xdgconfigdirs */
|
|
const char *suffix = "/awesome";
|
|
size_t len = a_strlen(*xdgconfigdirs) + a_strlen(suffix) + 1;
|
|
char *entry = p_new(char, len);
|
|
a_strcat(entry, len, *xdgconfigdirs);
|
|
a_strcat(entry, len, suffix);
|
|
string_array_append(&searchpath, entry);
|
|
}
|
|
|
|
/* Check the configfile syntax and exit */
|
|
if (default_init_flags & INIT_FLAG_RUN_TEST)
|
|
{
|
|
bool success = true;
|
|
/* Get the first config that will be tried */
|
|
const char *config = luaA_find_config(&xdg, confpath, true_config_callback);
|
|
fprintf(stdout, "Checking config '%s'... ", config);
|
|
|
|
/* Try to parse it */
|
|
lua_State *L = luaL_newstate();
|
|
if(luaL_loadfile(L, config))
|
|
{
|
|
const char *err = lua_tostring(L, -1);
|
|
fprintf(stdout, "\nERROR: %s\n", err);
|
|
success = false;
|
|
}
|
|
p_delete(&config);
|
|
lua_close(L);
|
|
|
|
if(!success)
|
|
{
|
|
return EXIT_FAILURE;
|
|
}
|
|
else
|
|
{
|
|
fprintf(stdout, "OK\n");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
}
|
|
|
|
/* Parse `rc.lua` to see if it has an AwesomeWM modeline */
|
|
if (!(default_init_flags & INIT_FLAG_FORCE_CMD_ARGS))
|
|
options_init_config(&xdg, awesome_argv[0], confpath, &default_init_flags, &searchpath);
|
|
|
|
/* Setup pipe for SIGCHLD processing */
|
|
{
|
|
if (!g_unix_open_pipe(sigchld_pipe, FD_CLOEXEC, NULL))
|
|
fatal("Failed to create pipe");
|
|
|
|
GIOChannel *channel = g_io_channel_unix_new(sigchld_pipe[0]);
|
|
g_io_add_watch(channel, G_IO_IN, reap_children, NULL);
|
|
g_io_channel_unref(channel);
|
|
}
|
|
|
|
/* register function for signals */
|
|
g_unix_signal_add(SIGINT, exit_on_signal, NULL);
|
|
g_unix_signal_add(SIGTERM, exit_on_signal, NULL);
|
|
g_unix_signal_add(SIGHUP, restart_on_signal, NULL);
|
|
|
|
struct sigaction sa = { .sa_handler = signal_fatal, .sa_flags = SA_RESETHAND };
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGABRT, &sa, 0);
|
|
sigaction(SIGBUS, &sa, 0);
|
|
sigaction(SIGFPE, &sa, 0);
|
|
sigaction(SIGILL, &sa, 0);
|
|
sigaction(SIGSEGV, &sa, 0);
|
|
signal(SIGPIPE, SIG_IGN);
|
|
|
|
sa.sa_handler = signal_child;
|
|
sa.sa_flags = SA_NOCLDSTOP | SA_RESTART;
|
|
sigaction(SIGCHLD, &sa, 0);
|
|
|
|
/* We have no clue where the input focus is right now */
|
|
globalconf.focus.need_update = true;
|
|
|
|
/* set the default preferred icon size */
|
|
globalconf.preferred_icon_size = 0;
|
|
|
|
/* X stuff */
|
|
globalconf.connection = xcb_connect(NULL, &globalconf.default_screen);
|
|
if(xcb_connection_has_error(globalconf.connection))
|
|
fatal("cannot open display (error %d)", xcb_connection_has_error(globalconf.connection));
|
|
|
|
globalconf.screen = xcb_aux_get_screen(globalconf.connection, globalconf.default_screen);
|
|
globalconf.default_visual = draw_default_visual(globalconf.screen);
|
|
if(default_init_flags & INIT_FLAG_ARGB)
|
|
globalconf.visual = draw_argb_visual(globalconf.screen);
|
|
if(!globalconf.visual)
|
|
globalconf.visual = globalconf.default_visual;
|
|
globalconf.default_depth = draw_visual_depth(globalconf.screen, globalconf.visual->visual_id);
|
|
globalconf.default_cmap = globalconf.screen->default_colormap;
|
|
if(globalconf.default_depth != globalconf.screen->root_depth)
|
|
{
|
|
// We need our own color map if we aren't using the default depth
|
|
globalconf.default_cmap = xcb_generate_id(globalconf.connection);
|
|
xcb_create_colormap(globalconf.connection, XCB_COLORMAP_ALLOC_NONE,
|
|
globalconf.default_cmap, globalconf.screen->root,
|
|
globalconf.visual->visual_id);
|
|
}
|
|
|
|
#ifdef WITH_XCB_ERRORS
|
|
if (xcb_errors_context_new(globalconf.connection, &globalconf.errors_ctx) < 0)
|
|
fatal("Failed to initialize xcb-errors");
|
|
#endif
|
|
|
|
/* Get a recent timestamp */
|
|
acquire_timestamp();
|
|
|
|
/* Prefetch all the extensions we might need */
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_big_requests_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_test_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_randr_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_xinerama_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_shape_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_xfixes_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_composite_id);
|
|
xcb_prefetch_extension_data(globalconf.connection, &xcb_damage_id);
|
|
|
|
if (xcb_cursor_context_new(globalconf.connection, globalconf.screen, &globalconf.cursor_ctx) < 0)
|
|
fatal("Failed to initialize xcb-cursor");
|
|
globalconf.xrmdb = xcb_xrm_database_from_default(globalconf.connection);
|
|
if (globalconf.xrmdb == NULL)
|
|
globalconf.xrmdb = xcb_xrm_database_from_string("");
|
|
if (globalconf.xrmdb == NULL)
|
|
fatal("Failed to initialize xcb-xrm");
|
|
|
|
/* Did we get some usable data from the above X11 setup? */
|
|
draw_test_cairo_xcb();
|
|
|
|
/* Acquire the WM_Sn selection */
|
|
acquire_WM_Sn(default_init_flags & INIT_FLAG_REPLACE_WM);
|
|
|
|
/* initialize dbus */
|
|
a_dbus_init();
|
|
|
|
/* Get the file descriptor corresponding to the X connection */
|
|
xfd = xcb_get_file_descriptor(globalconf.connection);
|
|
GIOChannel *channel = g_io_channel_unix_new(xfd);
|
|
g_io_add_watch(channel, G_IO_IN, a_xcb_io_cb, NULL);
|
|
g_io_channel_unref(channel);
|
|
|
|
/* Grab server */
|
|
xcb_grab_server(globalconf.connection);
|
|
|
|
{
|
|
const uint32_t select_input_val = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
|
|
xcb_void_cookie_t cookie;
|
|
|
|
/* This causes an error if some other window manager is running */
|
|
cookie = xcb_change_window_attributes_checked(globalconf.connection,
|
|
globalconf.screen->root,
|
|
XCB_CW_EVENT_MASK, &select_input_val);
|
|
if (xcb_request_check(globalconf.connection, cookie))
|
|
fatal("another window manager is already running (can't select SubstructureRedirect)");
|
|
}
|
|
|
|
/* Prefetch the maximum request length */
|
|
xcb_prefetch_maximum_request_length(globalconf.connection);
|
|
|
|
/* check for xtest extension */
|
|
const xcb_query_extension_reply_t *query;
|
|
query = xcb_get_extension_data(globalconf.connection, &xcb_test_id);
|
|
globalconf.have_xtest = query && query->present;
|
|
|
|
/* check for shape extension */
|
|
query = xcb_get_extension_data(globalconf.connection, &xcb_shape_id);
|
|
globalconf.have_shape = query && query->present;
|
|
if (globalconf.have_shape)
|
|
{
|
|
xcb_shape_query_version_reply_t *reply =
|
|
xcb_shape_query_version_reply(globalconf.connection,
|
|
xcb_shape_query_version_unchecked(globalconf.connection),
|
|
NULL);
|
|
globalconf.have_input_shape = reply && (reply->major_version > 1 ||
|
|
(reply->major_version == 1 && reply->minor_version >= 1));
|
|
p_delete(&reply);
|
|
}
|
|
|
|
/* check for xfixes extension */
|
|
query = xcb_get_extension_data(globalconf.connection, &xcb_xfixes_id);
|
|
globalconf.have_xfixes = query && query->present;
|
|
if (globalconf.have_xfixes)
|
|
xcb_discard_reply(globalconf.connection,
|
|
xcb_xfixes_query_version(globalconf.connection, 1, 0).sequence);
|
|
|
|
query = xcb_get_extension_data(globalconf.connection, &xcb_composite_id);
|
|
globalconf.have_composite = query && query->present;
|
|
if (globalconf.have_composite)
|
|
xcb_discard_reply(globalconf.connection,
|
|
xcb_composite_query_version(globalconf.connection, 0, 3).sequence);
|
|
|
|
query = xcb_get_extension_data(globalconf.connection, &xcb_damage_id);
|
|
globalconf.have_damage = query && query->present;
|
|
if (globalconf.have_damage)
|
|
xcb_discard_reply(globalconf.connection,
|
|
xcb_damage_query_version(globalconf.connection, 1, 0).sequence);
|
|
|
|
globalconf.is_compositing = globalconf.have_composite && globalconf.have_damage;
|
|
|
|
event_init();
|
|
|
|
/* Allocate the key symbols */
|
|
globalconf.keysyms = xcb_key_symbols_alloc(globalconf.connection);
|
|
|
|
/* init atom cache */
|
|
atoms_init(globalconf.connection);
|
|
|
|
ewmh_init();
|
|
systray_init();
|
|
|
|
/* init spawn (sn) */
|
|
spawn_init();
|
|
|
|
/* init xkb */
|
|
xkb_init();
|
|
|
|
/* The default GC is just a newly created associated with a window with
|
|
* depth globalconf.default_depth.
|
|
* The window_no_focus is used for "nothing has the input focus". */
|
|
globalconf.focus.window_no_focus = xcb_generate_id(globalconf.connection);
|
|
globalconf.gc = xcb_generate_id(globalconf.connection);
|
|
xcb_create_window(globalconf.connection, globalconf.default_depth,
|
|
globalconf.focus.window_no_focus, globalconf.screen->root,
|
|
-1, -1, 1, 1, 0,
|
|
XCB_COPY_FROM_PARENT, globalconf.visual->visual_id,
|
|
XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL |
|
|
XCB_CW_OVERRIDE_REDIRECT | XCB_CW_COLORMAP,
|
|
(const uint32_t [])
|
|
{
|
|
globalconf.screen->black_pixel,
|
|
globalconf.screen->black_pixel,
|
|
1,
|
|
globalconf.default_cmap
|
|
});
|
|
xwindow_set_class_instance(globalconf.focus.window_no_focus);
|
|
xwindow_set_name_static(globalconf.focus.window_no_focus, "Awesome no input window");
|
|
xcb_map_window(globalconf.connection, globalconf.focus.window_no_focus);
|
|
xcb_create_gc(globalconf.connection, globalconf.gc, globalconf.focus.window_no_focus,
|
|
XCB_GC_FOREGROUND | XCB_GC_BACKGROUND,
|
|
(const uint32_t[]) { globalconf.screen->black_pixel, globalconf.screen->white_pixel });
|
|
|
|
/* Get the window tree associated to this screen */
|
|
tree_c = xcb_query_tree_unchecked(globalconf.connection,
|
|
globalconf.screen->root);
|
|
|
|
xcb_change_window_attributes(globalconf.connection,
|
|
globalconf.screen->root,
|
|
XCB_CW_EVENT_MASK,
|
|
ROOT_WINDOW_EVENT_MASK);
|
|
|
|
/* we will receive events, stop grabbing server */
|
|
xutil_ungrab_server(globalconf.connection);
|
|
|
|
/* get the current wallpaper, from now on we are informed when it changes */
|
|
root_update_wallpaper();
|
|
|
|
/* init lua */
|
|
luaA_init(&xdg, &searchpath);
|
|
string_array_wipe(&searchpath);
|
|
init_rng();
|
|
|
|
ewmh_init_lua();
|
|
|
|
/* Parse and run configuration file before adding the screens */
|
|
if (globalconf.no_auto_screen)
|
|
{
|
|
/* Disable automatic screen creation, awful.screen has a fallback */
|
|
globalconf.ignore_screens = true;
|
|
|
|
if(!luaA_parserc(&xdg, confpath))
|
|
fatal("couldn't find any rc file");
|
|
}
|
|
|
|
/* init screens information */
|
|
screen_scan();
|
|
|
|
/* Parse and run configuration file after adding the screens */
|
|
if (((!globalconf.no_auto_screen) && !luaA_parserc(&xdg, confpath)))
|
|
fatal("couldn't find any rc file");
|
|
|
|
p_delete(&confpath);
|
|
|
|
xdgWipeHandle(&xdg);
|
|
|
|
/* Both screen scanning mode have this signal, it cannot be in screen_scan
|
|
since the automatic screen generation don't have executed rc.lua yet. */
|
|
screen_emit_scanned();
|
|
|
|
/* Exit if the user doesn't read the instructions properly */
|
|
if (globalconf.no_auto_screen && !globalconf.screens.len)
|
|
fatal("When -m/--screen is set to \"off\", you **must** create a "
|
|
"screen object before or inside the screen \"scanned\" "
|
|
" signal. Using AwesomeWM with no screen is **not supported**.");
|
|
|
|
client_emit_scanning();
|
|
|
|
/* scan existing windows */
|
|
scan(tree_c);
|
|
|
|
client_emit_scanned();
|
|
|
|
luaA_emit_startup();
|
|
|
|
/* Setup the main context */
|
|
g_main_context_set_poll_func(g_main_context_default(), &a_glib_poll);
|
|
gettimeofday(&last_wakeup, NULL);
|
|
|
|
/* main event loop (if not NULL, awesome.quit() was already called) */
|
|
if (globalconf.loop == NULL)
|
|
{
|
|
globalconf.loop = g_main_loop_new(NULL, FALSE);
|
|
g_main_loop_run(globalconf.loop);
|
|
}
|
|
g_main_loop_unref(globalconf.loop);
|
|
globalconf.loop = NULL;
|
|
|
|
awesome_atexit(false);
|
|
|
|
return globalconf.exit_code;
|
|
}
|
|
|
|
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|