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gri3-wm/src/nc.c

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/*
* vim:ts=4:sw=4:expandtab
*/
#include <ev.h>
#include "all.h"
static int xkb_event_base;
int xkb_current_group;
extern Con *focused;
char **start_argv;
xcb_connection_t *conn;
xcb_event_handlers_t evenths;
xcb_atom_t atoms[NUM_ATOMS];
xcb_window_t root;
uint8_t root_depth;
xcb_key_symbols_t *keysyms;
/* The list of key bindings */
struct bindings_head *bindings;
/* The list of exec-lines */
struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
/* The list of assignments */
struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
/*
* 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(conn);
}
/*
* 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(conn)) != NULL) {
xcb_event_handle(&evenths, event);
free(event);
}
}
int handle_map_request(void *unused, xcb_connection_t *conn, xcb_map_request_event_t *event) {
xcb_get_window_attributes_cookie_t cookie;
cookie = xcb_get_window_attributes_unchecked(conn, event->window);
LOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
//add_ignore_event(event->sequence);
manage_window(event->window, cookie, false);
return 1;
}
int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
LOG("unmap event for 0x%08x\n", event->window);
Con *con = con_by_window_id(event->window);
if (con == NULL) {
LOG("Not a managed window, ignoring\n");
return 1;
}
tree_close(con);
tree_render();
return 1;
}
int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
Con *parent, *con;
/* event->count is the number of minimum remaining expose events for this window, so we
skip all events but the last one */
if (event->count != 0)
return 1;
LOG("expose-event, window = %08x\n", event->window);
if ((parent = con_by_frame_id(event->window)) == NULL) {
LOG("expose event for unknown window, ignoring\n");
return 1;
}
TAILQ_FOREACH(con, &(parent->nodes_head), nodes) {
LOG("expose for con %p / %s\n", con, con->name);
if (con->window)
x_draw_decoration(con);
}
xcb_flush(conn);
return 1;
}
void parse_command(const char *command) {
printf("received command: %s\n", command);
if (strcasecmp(command, "open") == 0)
tree_open_con(NULL);
else if (strcasecmp(command, "close") == 0)
tree_close_con();
else if (strcasecmp(command, "split h") == 0)
tree_split(focused, HORIZ);
else if (strcasecmp(command, "split v") == 0)
tree_split(focused, VERT);
else if (strcasecmp(command, "level up") == 0)
level_up();
else if (strcasecmp(command, "level down") == 0)
level_down();
else if (strcasecmp(command, "prev h") == 0)
tree_next('p', HORIZ);
else if (strcasecmp(command, "prev v") == 0)
tree_next('p', VERT);
else if (strcasecmp(command, "next h") == 0)
tree_next('n', HORIZ);
else if (strcasecmp(command, "next v") == 0)
tree_next('n', VERT);
else if (strncasecmp(command, "workspace ", strlen("workspace ")) == 0)
workspace_show(command + strlen("workspace "));
else if (strcasecmp(command, "move before h") == 0)
tree_move('p', HORIZ);
else if (strcasecmp(command, "move before v") == 0)
tree_move('p', VERT);
else if (strcasecmp(command, "move after h") == 0)
tree_move('n', HORIZ);
else if (strcasecmp(command, "move after v") == 0)
tree_move('n', VERT);
else if (strncasecmp(command, "restore", strlen("restore")) == 0)
tree_append_json(command + strlen("restore "));
else if (strncasecmp(command, "exec", strlen("exec")) == 0)
start_application(command + strlen("exec "));
else if (strcasecmp(command, "restart") == 0)
i3_restart();
else if (strcasecmp(command, "floating") == 0)
toggle_floating_mode(focused, false);
tree_render();
#if 0
if (strcasecmp(command, "prev") == 0)
tree_prev(O_CURRENT);
#endif
}
int main(int argc, char *argv[]) {
int screens;
char *override_configpath = NULL;
bool autostart = true;
bool only_check_config = false;
bool force_xinerama = false;
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'},
{"force-xinerama", no_argument, 0, 0},
{0, 0, 0, 0}
};
int option_index = 0, opt;
setlocale(LC_ALL, "");
/* Disable output buffering to make redirects in .xsession actually useful for debugging */
if (!isatty(fileno(stdout)))
setbuf(stdout, NULL);
start_argv = argv;
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;
case 0:
if (strcmp(long_options[option_index].name, "force-xinerama") == 0) {
force_xinerama = true;
ELOG("Using Xinerama instead of RandR. This option should be "
"avoided at all cost because it does not refresh the list "
"of screens, so you cannot configure displays at runtime. "
"Please check if your driver really does not support RandR "
"and disable this option as soon as you can.\n");
break;
}
/* fall-through */
default:
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");
fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This "
"option should only be used if you are stuck with the "
"nvidia closed source driver which does not support RandR.\n");
exit(EXIT_FAILURE);
}
}
LOG("i3 (tree) version " I3_VERSION " starting\n");
conn = xcb_connect(NULL, &screens);
if (xcb_connection_has_error(conn))
errx(EXIT_FAILURE, "Cannot open display\n");
load_configuration(conn, override_configpath, false);
if (only_check_config) {
LOG("Done checking configuration file. Exiting.\n");
exit(0);
}
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_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");
/* 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_SUPPORTED);
REQUEST_ATOM(_NET_WM_STATE_FULLSCREEN);
REQUEST_ATOM(_NET_SUPPORTING_WM_CHECK);
REQUEST_ATOM(_NET_WM_NAME);
REQUEST_ATOM(_NET_WM_STATE);
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);
xcb_event_handlers_init(conn, &evenths);
xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL);
xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL);
xcb_event_set_map_request_handler(&evenths, handle_map_request, NULL);
xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL);
//xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_notify_event, NULL);
xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL);
/* Setup NetWM atoms */
#define GET_ATOM(name) \
do { \
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \
if (!reply) { \
ELOG("Could not get atom " #name "\n"); \
exit(-1); \
} \
atoms[name] = reply->atom; \
free(reply); \
} while (0)
GET_ATOM(_NET_SUPPORTED);
GET_ATOM(_NET_WM_STATE_FULLSCREEN);
GET_ATOM(_NET_SUPPORTING_WM_CHECK);
GET_ATOM(_NET_WM_NAME);
GET_ATOM(_NET_WM_STATE);
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);
keysyms = xcb_key_symbols_alloc(conn);
xcb_get_numlock_mask(conn);
translate_keysyms();
grab_all_keys(conn, false);
int randr_base;
if (force_xinerama) {
xinerama_init();
} else {
DLOG("Checking for XRandR...\n");
randr_init(&randr_base);
#if 0
xcb_event_set_handler(&evenths,
randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
handle_screen_change,
NULL);
#endif
}
if (!tree_restore())
tree_init();
tree_render();
/* proof-of-concept for assignments */
Con *ws = workspace_get("3");
Match *current_swallow = scalloc(sizeof(Match));
TAILQ_INSERT_TAIL(&(ws->swallow_head), current_swallow, matches);
current_swallow->insert_where = M_ACTIVE;
current_swallow->class = strdup("xterm");
struct ev_loop *loop = ev_loop_new(0);
if (loop == NULL)
die("Could not initialize libev. Bad LIBEV_FLAGS?\n");
/* 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);
}
}
struct ev_io *xcb_watcher = 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);
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);
xcb_flush(conn);
manage_existing_windows(root);
ev_loop(loop, 0);
}
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