*
* i3 - an improved dynamic tiling window manager
*
- * © 2009 Michael Stapelberg and contributors
+ * © 2009-2010 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
*/
#include <stdio.h>
-#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <assert.h>
#include <limits.h>
#include <locale.h>
+#include <fcntl.h>
+#include <getopt.h>
#include <X11/XKBlib.h>
#include <X11/extensions/XKB.h>
#include <xcb/xcb_property.h>
#include <xcb/xcb_keysyms.h>
#include <xcb/xcb_icccm.h>
-#include <xcb/xinerama.h>
+
+#include <ev.h>
#include "config.h"
#include "data.h"
#include "debug.h"
#include "handlers.h"
+#include "click.h"
#include "i3.h"
#include "layout.h"
#include "queue.h"
#include "table.h"
#include "util.h"
#include "xcb.h"
-#include "xinerama.h"
+#include "randr.h"
#include "manage.h"
+#include "ipc.h"
+#include "log.h"
+#include "sighandler.h"
+
+xcb_connection_t *global_conn;
/* This is the path to i3, copied from argv[0] when starting up */
char **start_argv;
/* This is our connection to X11 for use with XKB */
Display *xkbdpy;
+xcb_key_symbols_t *keysyms;
+
/* The list of key bindings */
-struct bindings_head bindings = TAILQ_HEAD_INITIALIZER(bindings);
+struct bindings_head *bindings;
/* The list of exec-lines */
struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
xcb_event_handlers_t evenths;
xcb_atom_t atoms[NUM_ATOMS];
+xcb_window_t root;
int num_screens = 0;
+/* The depth of the root screen (used e.g. for creating new pixmaps later) */
+uint8_t root_depth;
+
+/* We hope that XKB is supported and set this to false */
+bool xkb_supported = true;
+
+/*
+ * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
+ * See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
+ *
+ */
+static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
+ /* empty, because xcb_prepare_cb and xcb_check_cb are used */
+}
+
+/*
+ * Flush before blocking (and waiting for new events)
+ *
+ */
+static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
+ xcb_flush(evenths.c);
+}
+
+/*
+ * Instead of polling the X connection socket we leave this to
+ * xcb_poll_for_event() which knows better than we can ever know.
+ *
+ */
+static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
+ xcb_generic_event_t *event;
+
+ while ((event = xcb_poll_for_event(evenths.c)) != NULL) {
+ xcb_event_handle(&evenths, event);
+ free(event);
+ }
+}
+
+/*
+ * When using xmodmap to change the keyboard mapping, this event
+ * is only sent via XKB. Therefore, we need this special handler.
+ *
+ */
+static void xkb_got_event(EV_P_ struct ev_io *w, int revents) {
+ DLOG("Handling XKB event\n");
+ XEvent ev;
+ /* When using xmodmap, every change (!) gets an own event.
+ * Therefore, we just read all events and only handle the
+ * mapping_notify once (we do not receive any other XKB
+ * events anyway). */
+ while (XPending(xkbdpy))
+ XNextEvent(xkbdpy, &ev);
+
+ xcb_key_symbols_free(keysyms);
+ keysyms = xcb_key_symbols_alloc(global_conn);
+
+ xcb_get_numlock_mask(global_conn);
+
+ ungrab_all_keys(global_conn);
+ DLOG("Re-grabbing...\n");
+ grab_all_keys(global_conn);
+ DLOG("Done\n");
+
+}
+
+
int main(int argc, char *argv[], char *env[]) {
int i, screens, opt;
char *override_configpath = NULL;
+ bool autostart = true;
+ bool only_check_config = false;
xcb_connection_t *conn;
xcb_property_handlers_t prophs;
- xcb_window_t root;
xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
+ static struct option long_options[] = {
+ {"no-autostart", no_argument, 0, 'a'},
+ {"config", required_argument, 0, 'c'},
+ {"version", no_argument, 0, 'v'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+ int option_index = 0;
setlocale(LC_ALL, "");
start_argv = argv;
- while ((opt = getopt(argc, argv, "c:v")) != -1) {
+ while ((opt = getopt_long(argc, argv, "c:Cvahld:V", long_options, &option_index)) != -1) {
switch (opt) {
+ case 'a':
+ LOG("Autostart disabled using -a\n");
+ autostart = false;
+ break;
case 'c':
override_configpath = sstrdup(optarg);
break;
+ case 'C':
+ LOG("Checking configuration file only (-C)\n");
+ only_check_config = true;
+ break;
case 'v':
printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n");
exit(EXIT_SUCCESS);
+ case 'V':
+ set_verbosity(true);
+ break;
+ case 'd':
+ LOG("Enabling debug loglevel %s\n", optarg);
+ add_loglevel(optarg);
+ break;
+ case 'l':
+ /* DEPRECATED, ignored for the next 3 versions (3.e, 3.f, 3.g) */
+ break;
default:
- fprintf(stderr, "Usage: %s [-c configfile]\n", argv[0]);
+ fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]);
+ fprintf(stderr, "\n");
+ fprintf(stderr, "-a: disable autostart\n");
+ fprintf(stderr, "-v: display version and exit\n");
+ fprintf(stderr, "-V: enable verbose mode\n");
+ fprintf(stderr, "-d <loglevel>: enable debug loglevel <loglevel>\n");
+ fprintf(stderr, "-c <configfile>: use the provided configfile instead\n");
+ fprintf(stderr, "-C: check configuration file and exit\n");
exit(EXIT_FAILURE);
}
}
memset(&evenths, 0, sizeof(xcb_event_handlers_t));
memset(&prophs, 0, sizeof(xcb_property_handlers_t));
- load_configuration(override_configpath);
+ conn = global_conn = xcb_connect(NULL, &screens);
+
+ if (xcb_connection_has_error(conn))
+ die("Cannot open display\n");
- conn = xcb_connect(NULL, &screens);
+ load_configuration(conn, override_configpath, false);
+ if (only_check_config) {
+ LOG("Done checking configuration file. Exiting.\n");
+ exit(0);
+ }
+
+ /* Create the initial container on the first workspace. This used to
+ * be part of init_table, but since it possibly requires an X
+ * connection and a loaded configuration (default mode for new
+ * containers may be stacking, which requires a new window to be
+ * created), it had to be delayed. */
+ expand_table_cols(TAILQ_FIRST(workspaces));
+ expand_table_rows(TAILQ_FIRST(workspaces));
/* Place requests for the atoms we need as soon as possible */
#define REQUEST_ATOM(name) atom_cookies[name] = xcb_intern_atom(conn, 0, strlen(#name), #name);
REQUEST_ATOM(_NET_WM_WINDOW_TYPE);
REQUEST_ATOM(_NET_WM_DESKTOP);
REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
+ REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
+ REQUEST_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
+ REQUEST_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
+ REQUEST_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
REQUEST_ATOM(_NET_WM_STRUT_PARTIAL);
REQUEST_ATOM(WM_PROTOCOLS);
REQUEST_ATOM(WM_DELETE_WINDOW);
REQUEST_ATOM(UTF8_STRING);
REQUEST_ATOM(WM_STATE);
+ REQUEST_ATOM(WM_CLIENT_LEADER);
+ REQUEST_ATOM(_NET_CURRENT_DESKTOP);
+ REQUEST_ATOM(_NET_ACTIVE_WINDOW);
+ REQUEST_ATOM(_NET_WORKAREA);
/* TODO: this has to be more beautiful somewhen */
int major, minor, error;
int evBase, errBase;
if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &evBase, &errBase, &major, &minor, &error)) == NULL) {
- fprintf(stderr, "XkbOpenDisplay() failed\n");
- return 1;
+ ELOG("ERROR: XkbOpenDisplay() failed, disabling XKB support\n");
+ xkb_supported = false;
}
- int i1;
- if (!XkbQueryExtension(xkbdpy,&i1,&evBase,&errBase,&major,&minor)) {
- fprintf(stderr, "XKB not supported by X-server\n");
- return 1;
+ if (xkb_supported) {
+ if (fcntl(ConnectionNumber(xkbdpy), F_SETFD, FD_CLOEXEC) == -1) {
+ fprintf(stderr, "Could not set FD_CLOEXEC on xkbdpy\n");
+ return 1;
+ }
+
+ int i1;
+ if (!XkbQueryExtension(xkbdpy,&i1,&evBase,&errBase,&major,&minor)) {
+ fprintf(stderr, "XKB not supported by X-server\n");
+ return 1;
+ }
+ /* end of ugliness */
+
+ if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd, XkbMapNotifyMask, XkbMapNotifyMask)) {
+ fprintf(stderr, "Could not set XKB event mask\n");
+ return 1;
+ }
}
- /* end of ugliness */
+
+ /* Initialize event loop using libev */
+ struct ev_loop *loop = ev_loop_new(0);
+ if (loop == NULL)
+ die("Could not initialize libev. Bad LIBEV_FLAGS?\n");
+
+ struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io));
+ struct ev_io *xkb = scalloc(sizeof(struct ev_io));
+ struct ev_check *xcb_check = scalloc(sizeof(struct ev_check));
+ struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare));
+
+ ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
+ ev_io_start(loop, xcb_watcher);
+
+ if (xkb_supported) {
+ ev_io_init(xkb, xkb_got_event, ConnectionNumber(xkbdpy), EV_READ);
+ ev_io_start(loop, xkb);
+
+ /* Flush the buffer so that libev can properly get new events */
+ XFlush(xkbdpy);
+ }
+
+ ev_check_init(xcb_check, xcb_check_cb);
+ ev_check_start(loop, xcb_check);
+
+ ev_prepare_init(xcb_prepare, xcb_prepare_cb);
+ ev_prepare_start(loop, xcb_prepare);
+
+ /* Grab the server to delay any events until we enter the eventloop */
+ xcb_grab_server(conn);
xcb_event_handlers_init(conn, &evenths);
/* Configure request = window tried to change size on its own */
xcb_event_set_configure_request_handler(&evenths, handle_configure_request, NULL);
+ /* Motion notify = user moved his cursor (over the root window and may
+ * cross virtual screen boundaries doing that) */
+ xcb_event_set_motion_notify_handler(&evenths, handle_motion_notify, NULL);
+
+ /* Mapping notify = keyboard mapping changed (Xmodmap), re-grab bindings */
+ xcb_event_set_mapping_notify_handler(&evenths, handle_mapping_notify, NULL);
+
/* Client message are sent to the root window. The only interesting client message
for us is _NET_WM_STATE, we honour _NET_WM_STATE_FULLSCREEN */
xcb_event_set_client_message_handler(&evenths, handle_client_message, NULL);
xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL);
/* Get the root window and set the event mask */
- root = xcb_aux_get_screen(conn, screens)->root;
+ xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
+ root = root_screen->root;
+ root_depth = root_screen->root_depth;
uint32_t mask = XCB_CW_EVENT_MASK;
uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video
projector), the root window gets a
ConfigureNotify */
+ XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_PROPERTY_CHANGE |
XCB_EVENT_MASK_ENTER_WINDOW };
- xcb_change_window_attributes(conn, root, mask, values);
+ xcb_void_cookie_t cookie;
+ cookie = xcb_change_window_attributes_checked(conn, root, mask, values);
+ check_error(conn, cookie, "Another window manager seems to be running");
/* Setup NetWM atoms */
#define GET_ATOM(name) { \
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \
if (!reply) { \
- LOG("Could not get atom " #name "\n"); \
+ ELOG("Could not get atom " #name "\n"); \
exit(-1); \
} \
atoms[name] = reply->atom; \
GET_ATOM(_NET_WM_WINDOW_TYPE);
GET_ATOM(_NET_WM_DESKTOP);
GET_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
+ GET_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
+ GET_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
+ GET_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
+ GET_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
GET_ATOM(_NET_WM_STRUT_PARTIAL);
GET_ATOM(WM_PROTOCOLS);
GET_ATOM(WM_DELETE_WINDOW);
GET_ATOM(UTF8_STRING);
GET_ATOM(WM_STATE);
+ GET_ATOM(WM_CLIENT_LEADER);
+ GET_ATOM(_NET_CURRENT_DESKTOP);
+ GET_ATOM(_NET_ACTIVE_WINDOW);
+ GET_ATOM(_NET_WORKAREA);
xcb_property_set_handler(&prophs, atoms[_NET_WM_WINDOW_TYPE], UINT_MAX, handle_window_type, NULL);
/* TODO: In order to comply with EWMH, we have to watch _NET_WM_STRUT_PARTIAL */
/* Watch _NET_WM_NAME (= title of the window in UTF-8) property */
xcb_property_set_handler(&prophs, atoms[_NET_WM_NAME], 128, handle_windowname_change, NULL);
+ /* Watch WM_TRANSIENT_FOR property (to which client this popup window belongs) */
+ xcb_property_set_handler(&prophs, WM_TRANSIENT_FOR, UINT_MAX, handle_transient_for, NULL);
+
/* Watch WM_NAME (= title of the window in compound text) property for legacy applications */
xcb_watch_wm_name(&prophs, 128, handle_windowname_change_legacy, NULL);
/* Watch WM_CLASS (= class of the window) */
xcb_property_set_handler(&prophs, WM_CLASS, 128, handle_windowclass_change, NULL);
+ /* Watch WM_CLIENT_LEADER (= logical parent window for toolbars etc.) */
+ xcb_property_set_handler(&prophs, atoms[WM_CLIENT_LEADER], UINT_MAX, handle_clientleader_change, NULL);
+
+ /* Watch WM_HINTS (contains the urgent property) */
+ xcb_property_set_handler(&prophs, WM_HINTS, UINT_MAX, handle_hints, NULL);
+
/* Set up the atoms we support */
check_error(conn, xcb_change_property_checked(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTED],
ATOM, 32, 7, atoms), "Could not set _NET_SUPPORTED");
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTING_WM_CHECK], WINDOW, 32, 1, &root);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_WM_NAME], atoms[UTF8_STRING], 8, strlen("i3"), "i3");
+ keysyms = xcb_key_symbols_alloc(conn);
+
xcb_get_numlock_mask(conn);
- /* Grab the bound keys */
- Binding *bind;
- TAILQ_FOREACH(bind, &bindings, bindings) {
- LOG("Grabbing %d\n", bind->keycode);
- if (bind->mods & BIND_MODE_SWITCH)
- xcb_grab_key(conn, 0, root, 0, bind->keycode, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_SYNC);
- else {
- /* Grab the key in all combinations */
- #define GRAB_KEY(modifier) xcb_grab_key(conn, 0, root, modifier, bind->keycode, \
- XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC)
- GRAB_KEY(bind->mods);
- GRAB_KEY(bind->mods | xcb_numlock_mask);
- GRAB_KEY(bind->mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
- }
- }
+ grab_all_keys(conn);
/* Autostarting exec-lines */
struct Autostart *exec;
- TAILQ_FOREACH(exec, &autostarts, autostarts) {
- LOG("auto-starting %s\n", exec->command);
- start_application(exec->command);
+ if (autostart) {
+ TAILQ_FOREACH(exec, &autostarts, autostarts) {
+ LOG("auto-starting %s\n", exec->command);
+ start_application(exec->command);
+ }
}
- /* check for Xinerama */
- LOG("Checking for Xinerama...\n");
- initialize_xinerama(conn);
+ DLOG("Checking for XRandR...\n");
+ int randr_base;
+ initialize_randr(conn, &randr_base);
- xcb_flush(conn);
+ xcb_event_set_handler(&evenths,
+ randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
+ handle_screen_change,
+ NULL);
- manage_existing_windows(conn, &prophs, root);
+ xcb_flush(conn);
/* Get pointer position to see on which screen we’re starting */
xcb_query_pointer_reply_t *reply;
if ((reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL)) == NULL) {
- LOG("Could not get pointer position\n");
+ ELOG("Could not get pointer position\n");
return 1;
}
- i3Screen *screen = get_screen_containing(reply->root_x, reply->root_y);
+ Output *screen = get_screen_containing(reply->root_x, reply->root_y);
if (screen == NULL) {
- LOG("ERROR: No screen at %d x %d\n", reply->root_x, reply->root_y);
- return 0;
+ ELOG("ERROR: No screen at %d x %d, starting on the first screen\n",
+ reply->root_x, reply->root_y);
+ screen = get_first_output();
}
- if (screen->current_workspace != 0) {
- LOG("Ok, I need to go to the other workspace\n");
- c_ws = &workspaces[screen->current_workspace];
+
+ DLOG("Starting on %p\n", screen->current_workspace);
+ c_ws = screen->current_workspace;
+
+ manage_existing_windows(conn, &prophs, root);
+
+ /* Create the UNIX domain socket for IPC */
+ if (config.ipc_socket_path != NULL) {
+ int ipc_socket = ipc_create_socket(config.ipc_socket_path);
+ if (ipc_socket == -1) {
+ ELOG("Could not create the IPC socket, IPC disabled\n");
+ } else {
+ struct ev_io *ipc_io = scalloc(sizeof(struct ev_io));
+ ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ);
+ ev_io_start(loop, ipc_io);
+ }
}
- /* Enter xcb’s event handler */
- xcb_event_wait_for_event_loop(&evenths);
+ /* Handle the events which arrived until now */
+ xcb_check_cb(NULL, NULL, 0);
+
+ setup_signal_handler();
+ /* Ungrab the server to receive events and enter libev’s eventloop */
+ xcb_ungrab_server(conn);
+ ev_loop(loop, 0);
/* not reached */
return 0;
projects / i3 / i3 / blobdiff