-#define _GNU_SOURCE
+/*
+ * vim:ts=8:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ *
+ * © 2009 Michael Stapelberg and contributors
+ *
+ * See file LICENSE for license information.
+ *
+ */
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdbool.h>
#include <assert.h>
-
-#include <xcb/xcb.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_wm.h>
+#include <xcb/xcb.h>
+#include <xcb/xcb_atom.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_event.h>
#include <xcb/xcb_property.h>
#include <xcb/xcb_keysyms.h>
#include <xcb/xcb_icccm.h>
#include <xcb/xinerama.h>
-#include "data.h"
-#include "queue.h"
-#include "table.h"
-#include "font.h"
-#include "layout.h"
+#include <ev.h>
+
+#include "config.h"
+#include "data.h"
#include "debug.h"
#include "handlers.h"
+#include "i3.h"
+#include "layout.h"
+#include "queue.h"
+#include "table.h"
#include "util.h"
+#include "xcb.h"
+#include "xinerama.h"
+#include "manage.h"
+#include "ipc.h"
+
+xcb_connection_t *global_conn;
-#define TERMINAL "/usr/pkg/bin/urxvt"
+/* 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;
-TAILQ_HEAD(bindings_head, Binding) bindings;
-xcb_event_handlers_t evenths;
+xcb_key_symbols_t *keysyms;
+
+/* The list of key bindings */
+struct bindings_head bindings = TAILQ_HEAD_INITIALIZER(bindings);
+
+/* The list of exec-lines */
+struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
-static const int TOP = 20;
-static const int LEFT = 5;
-static const int BOTTOM = 5;
-static const int RIGHT = 5;
+/* The list of assignments */
+struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
-/* hm, xcb_wm wants us to implement this. */
-table_t *byChild = 0;
-table_t *byParent = 0;
-xcb_window_t root_win;
+/* This is a list of Stack_Windows, global, for easier/faster access on expose events */
+struct stack_wins_head stack_wins = SLIST_HEAD_INITIALIZER(stack_wins);
+
+/* The event handlers need to be global because they are accessed by our custom event handler
+ in handle_button_press(), needed for graphical resizing */
+xcb_event_handlers_t evenths;
+xcb_atom_t atoms[NUM_ATOMS];
-char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso8859-1";
+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;
+
/*
- *
- * TODO: what exactly does this, what happens if we leave stuff out?
+ * 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
*
*/
-void manage_window(xcb_property_handlers_t *prophs, xcb_connection_t *c, xcb_window_t window, window_attributes_t wa)
-{
- printf("managing window.\n");
- xcb_drawable_t d = { window };
- xcb_get_geometry_cookie_t geomc;
- xcb_get_geometry_reply_t *geom;
- xcb_get_window_attributes_reply_t *attr = 0;
- if(wa.tag == TAG_COOKIE)
- {
- attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
- if(!attr)
- return;
- if(attr->map_state != XCB_MAP_STATE_VIEWABLE)
- {
- printf("Window 0x%08x is not mapped. Ignoring.\n", window);
- free(attr);
- return;
- }
- wa.tag = TAG_VALUE;
- wa.u.override_redirect = attr->override_redirect;
- }
- if(!wa.u.override_redirect && table_get(byChild, window))
- {
- printf("Window 0x%08x already managed. Ignoring.\n", window);
- free(attr);
- return;
- }
- if(wa.u.override_redirect)
- {
- printf("Window 0x%08x has override-redirect set. Ignoring.\n", window);
- free(attr);
- return;
- }
- geomc = xcb_get_geometry(c, d);
- if(!attr)
- {
- wa.tag = TAG_COOKIE;
- wa.u.cookie = xcb_get_window_attributes(c, window);
- attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0);
- }
- geom = xcb_get_geometry_reply(c, geomc, 0);
- if(attr && geom)
- {
- reparent_window(c, window, attr->visual, geom->root, geom->depth, geom->x, geom->y, geom->width, geom->height);
- xcb_property_changed(prophs, XCB_PROPERTY_NEW_VALUE, window, WM_NAME);
- }
- free(attr);
- free(geom);
+static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
+ /* empty, because xcb_prepare_cb and xcb_check_cb are used */
}
/*
- * Let’s own this window…
+ * Flush before blocking (and waiting for new events)
*
*/
-void reparent_window(xcb_connection_t *conn, xcb_window_t child,
- xcb_visualid_t visual, xcb_window_t root, uint8_t depth,
- int16_t x, int16_t y, uint16_t width, uint16_t height) {
-
- Client *new = table_get(byChild, child);
- if (new == NULL) {
- printf("oh, it's new\n");
- new = calloc(sizeof(Client), 1);
- new->x = -1;
- new->y = -1;
- }
- uint32_t mask = 0;
- uint32_t values[3];
-
- /* Insert into the currently active container */
- CIRCLEQ_INSERT_TAIL(&(CUR_CELL->clients), new, clients);
-
- printf("currently_focused = %p\n", new);
- CUR_CELL->currently_focused = new;
- new->container = CUR_CELL;
-
- new->frame = xcb_generate_id(conn);
- new->child = child;
- new->width = width;
- new->height = height;
-
- /* Don’t generate events for our new window, it should *not* be managed */
- mask |= XCB_CW_OVERRIDE_REDIRECT;
- values[0] = 1;
-
- /* We want to know when… */
- mask |= XCB_CW_EVENT_MASK;
- values[1] = XCB_EVENT_MASK_BUTTON_PRESS | /* …mouse is pressed/released */
- XCB_EVENT_MASK_BUTTON_RELEASE |
- XCB_EVENT_MASK_EXPOSURE | /* …our window needs to be redrawn */
- XCB_EVENT_MASK_ENTER_WINDOW /* …user moves cursor inside our window */;
-
- printf("Reparenting 0x%08x under 0x%08x.\n", child, new->frame);
-
- /* Yo dawg, I heard you like windows, so I create a window around your window… */
- xcb_create_window(conn,
- depth,
- new->frame,
- root,
- x,
- y,
- width + LEFT + RIGHT,
- height + TOP + BOTTOM,
- /* border_width */ 0,
- XCB_WINDOW_CLASS_INPUT_OUTPUT,
- visual,
- mask,
- values);
- xcb_change_save_set(conn, XCB_SET_MODE_INSERT, child);
-
- /* Map the window on the screen (= make it visible) */
- xcb_map_window(conn, new->frame);
-
- /* Generate a graphics context for the titlebar */
- new->titlegc = xcb_generate_id(conn);
- xcb_create_gc(conn, new->titlegc, new->frame, 0, 0);
-
- /* Draw decorations */
- decorate_window(conn, new);
-
- /* Put our data structure (Client) into the table */
- table_put(byParent, new->frame, new);
- table_put(byChild, child, new);
-
- /* Moves the original window into the new frame we've created for it */
- i3Font *font = load_font(conn, pattern);
- xcb_reparent_window(conn, child, new->frame, 0, font->height);
-
- /* We are interested in property changes */
- mask = XCB_CW_EVENT_MASK;
- values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
- XCB_EVENT_MASK_STRUCTURE_NOTIFY |
- XCB_EVENT_MASK_ENTER_WINDOW |
- XCB_EVENT_MASK_BUTTON_PRESS;
- xcb_change_window_attributes(conn, child, mask, values);
-
- /* We need to grab the mouse buttons for click to focus */
- xcb_grab_button(conn, false, child, XCB_EVENT_MASK_BUTTON_PRESS,
- XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 1 /* left mouse button */,
- XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
-
- /* Focus the new window */
- xcb_set_input_focus(conn, XCB_INPUT_FOCUS_NONE, new->child, XCB_CURRENT_TIME);
-
- render_layout(conn);
+static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
+ xcb_flush(evenths.c);
}
-void manage_existing_windows(xcb_connection_t *c, xcb_property_handlers_t *prophs, xcb_window_t root) {
- xcb_query_tree_cookie_t wintree;
- xcb_query_tree_reply_t *rep;
- int i, len;
- xcb_window_t *children;
- xcb_get_window_attributes_cookie_t *cookies;
-
- wintree = xcb_query_tree(c, root);
- rep = xcb_query_tree_reply(c, wintree, 0);
- if(!rep)
- return;
- len = xcb_query_tree_children_length(rep);
- cookies = malloc(len * sizeof(*cookies));
- if(!cookies)
- {
- free(rep);
- return;
- }
- children = xcb_query_tree_children(rep);
- for(i = 0; i < len; ++i)
- cookies[i] = xcb_get_window_attributes(c, children[i]);
- for(i = 0; i < len; ++i)
- {
- window_attributes_t wa = { TAG_COOKIE, { cookies[i] } };
- manage_window(prophs, c, children[i], wa);
- }
- free(rep);
-}
-
-static void initialize_xinerama(xcb_connection_t *conn) {
- xcb_xinerama_query_screens_reply_t *reply;
- xcb_xinerama_screen_info_t *screen_info;
- int screen;
-
- if (!xcb_get_extension_data(conn, &xcb_xinerama_id)->present) {
- printf("Xinerama extension not found, disabling.\n");
- return;
- }
-
- if (!xcb_xinerama_is_active_reply(conn, xcb_xinerama_is_active(conn), NULL)->state) {
- printf("Xinerama is not active (in your X-Server), disabling.\n");
- return;
- }
-
-
- reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL);
- /* TODO: error check */
- screen_info = xcb_xinerama_query_screens_screen_info(reply);
-
- num_screens = xcb_xinerama_query_screens_screen_info_length(reply);
-
- /* Just go through each workspace and associate as many screens as we can. */
- for (screen = 0; screen < num_screens; screen++) {
- workspaces[screen].x = screen_info[screen].x_org;
- workspaces[screen].y = screen_info[screen].y_org;
- workspaces[screen].width = screen_info[screen].width;
- workspaces[screen].height = screen_info[screen].height;
- workspaces[screen].screen_num = screen;
-
- printf("found Xinerama screen: %d x %d at %d x %d\n",
- screen_info[screen].width, screen_info[screen].height,
- screen_info[screen].x_org, screen_info[screen].y_org);
- }
+/*
+ * 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;
- free(screen_info);
+ while ((event = xcb_poll_for_event(evenths.c)) != NULL) {
+ xcb_event_handle(&evenths, event);
+ free(event);
+ }
}
-int main(int argc, char *argv[], char *env[]) {
- int i, screens;
- xcb_connection_t *c;
- xcb_property_handlers_t prophs;
- xcb_window_t root;
-
- /* Initialize the table data structures for each workspace */
- init_table();
-
- memset(&evenths, 0, sizeof(xcb_event_handlers_t));
- memset(&prophs, 0, sizeof(xcb_property_handlers_t));
-
- byChild = alloc_table();
- byParent = alloc_table();
-
- TAILQ_INIT(&bindings);
-
- c = xcb_connect(NULL, &screens);
-
- /* TODO: this has to be more beautiful somewhen */
- int major, minor, error;
-
- major = XkbMajorVersion;
- minor = XkbMinorVersion;
-
- int evBase, errBase;
-
- if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &evBase, &errBase, &major, &minor, &error)) == NULL) {
- fprintf(stderr, "XkbOpenDisplay() failed\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 */
-
- xcb_event_handlers_init(c, &evenths);
- for(i = 2; i < 128; ++i)
- xcb_event_set_handler(&evenths, i, handle_event, 0);
-
- for(i = 0; i < 256; ++i)
- xcb_event_set_error_handler(&evenths, i, (xcb_generic_error_handler_t)handle_event, 0);
-
- /* Expose = an Application should redraw itself. That is, we have to redraw our
- * contents (= top/bottom bar, titlebars for each window) */
- xcb_event_set_expose_handler(&evenths, handle_expose_event, 0);
-
- /* Key presses/releases are pretty obvious, I think */
- xcb_event_set_key_press_handler(&evenths, handle_key_press, 0);
- xcb_event_set_key_release_handler(&evenths, handle_key_release, 0);
-
- /* Enter window = user moved his mouse over the window */
- xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, 0);
-
- /* Button press = user pushed a mouse button over one of our windows */
- xcb_event_set_button_press_handler(&evenths, handle_button_press, 0);
-
- xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, 0);
-
- xcb_property_handlers_init(&prophs, &evenths);
- xcb_event_set_map_notify_handler(&evenths, handle_map_notify_event, &prophs);
-
- xcb_watch_wm_name(&prophs, 128, handle_windowname_change, 0);
-
- root = xcb_aux_get_screen(c, screens)->root;
- root_win = root;
-
- uint32_t mask = XCB_CW_EVENT_MASK;
- uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE };
- xcb_change_window_attributes(c, root, mask, values);
-
- #define BIND(key, modifier, cmd) { \
- Binding *new = malloc(sizeof(Binding)); \
- new->keycode = key; \
- new->mods = modifier; \
- new->command = cmd; \
- TAILQ_INSERT_TAIL(&bindings, new, bindings); \
- }
-
- /* 38 = 'a' */
- BIND(38, BIND_MODE_SWITCH, "foo");
-
- BIND(30, 0, "exec /usr/pkg/bin/urxvt");
-
- BIND(44, BIND_MOD_1, "h");
- BIND(45, BIND_MOD_1, "j");
- BIND(46, BIND_MOD_1, "k");
- BIND(47, BIND_MOD_1, "l");
-
- BIND(44, BIND_MOD_1 | BIND_CONTROL, "sh");
- BIND(45, BIND_MOD_1 | BIND_CONTROL, "sj");
- BIND(46, BIND_MOD_1 | BIND_CONTROL, "sk");
- BIND(47, BIND_MOD_1 | BIND_CONTROL, "sl");
-
- BIND(44, BIND_MOD_1 | BIND_SHIFT, "mh");
- BIND(45, BIND_MOD_1 | BIND_SHIFT, "mj");
- BIND(46, BIND_MOD_1 | BIND_SHIFT, "mk");
- BIND(47, BIND_MOD_1 | BIND_SHIFT, "ml");
-
- BIND(10, BIND_MOD_1 , "1");
- BIND(11, BIND_MOD_1 , "2");
- BIND(12, BIND_MOD_1 , "3");
- BIND(13, BIND_MOD_1 , "4");
- BIND(14, BIND_MOD_1 , "5");
- BIND(15, BIND_MOD_1 , "6");
- BIND(16, BIND_MOD_1 , "7");
- BIND(17, BIND_MOD_1 , "8");
- BIND(18, BIND_MOD_1 , "9");
- BIND(19, BIND_MOD_1 , "0");
-
- Binding *bind;
- TAILQ_FOREACH(bind, &bindings, bindings) {
- printf("Grabbing %d\n", bind->keycode);
- if (bind->mods & BIND_MODE_SWITCH)
- xcb_grab_key(c, 0, root, 0, bind->keycode, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_SYNC);
- else xcb_grab_key(c, 0, root, bind->mods, bind->keycode, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC);
- }
-
- /* check for Xinerama */
- printf("Checking for Xinerama...\n");
- initialize_xinerama(c);
-
- start_application(TERMINAL);
-
- xcb_flush(c);
+/*
+ * 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) {
+ LOG("got xkb event, yay\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);
+ LOG("Re-grabbing...\n");
+ grab_all_keys(global_conn);
+ LOG("Done\n");
- manage_existing_windows(c, &prophs, root);
+}
- xcb_event_wait_for_event_loop(&evenths);
- /* not reached */
- return 0;
+int main(int argc, char *argv[], char *env[]) {
+ int i, screens, opt;
+ char *override_configpath = NULL;
+ bool autostart = true;
+ xcb_connection_t *conn;
+ xcb_property_handlers_t prophs;
+ 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, "");
+
+ /* 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:vah", 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 'v':
+ printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n");
+ exit(EXIT_SUCCESS);
+ default:
+ fprintf(stderr, "Usage: %s [-c configfile] [-a] [-v]\n", argv[0]);
+ fprintf(stderr, "\n");
+ fprintf(stderr, "-a: disable autostart\n");
+ fprintf(stderr, "-v: display version and exit\n");
+ fprintf(stderr, "-c <configfile>: use the provided configfile instead\n");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ LOG("i3 version " I3_VERSION " starting\n");
+
+ /* Initialize the table data structures for each workspace */
+ init_table();
+
+ memset(&evenths, 0, sizeof(xcb_event_handlers_t));
+ memset(&prophs, 0, sizeof(xcb_property_handlers_t));
+
+ conn = global_conn = xcb_connect(NULL, &screens);
+
+ if (xcb_connection_has_error(conn))
+ die("Cannot open display\n");
+
+ load_configuration(conn, override_configpath, false);
+
+ /* 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);
+
+ /* TODO: this has to be more beautiful somewhen */
+ int major, minor, error;
+
+ major = XkbMajorVersion;
+ minor = XkbMinorVersion;
+
+ int evBase, errBase;
+
+ if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &evBase, &errBase, &major, &minor, &error)) == NULL) {
+ fprintf(stderr, "XkbOpenDisplay() failed\n");
+ return 1;
+ }
+
+ 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;
+ }
+
+ /* Initialize event loop using libev */
+ struct ev_loop *loop = ev_default_loop(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);
+
+ 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);
+
+ /* DEBUG: Trap all events and print them */
+ for (i = 2; i < 128; ++i)
+ xcb_event_set_handler(&evenths, i, handle_event, 0);
+
+ for (i = 0; i < 256; ++i)
+ xcb_event_set_error_handler(&evenths, i, (xcb_generic_error_handler_t)handle_event, 0);
+
+ /* Expose = an Application should redraw itself, in this case it’s our titlebars. */
+ xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL);
+
+ /* Key presses/releases are pretty obvious, I think */
+ xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL);
+ xcb_event_set_key_release_handler(&evenths, handle_key_release, NULL);
+
+ /* Enter window = user moved his mouse over the window */
+ xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, NULL);
+
+ /* Button press = user pushed a mouse button over one of our windows */
+ xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL);
+
+ /* Map notify = there is a new window */
+ xcb_event_set_map_request_handler(&evenths, handle_map_request, &prophs);
+
+ /* Unmap notify = window disappeared. When sent from a client, we don’t manage
+ it any longer. Usually, the client destroys the window shortly afterwards. */
+ xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL);
+
+ /* Configure notify = window’s configuration (geometry, stacking, …). We only need
+ it to set up ignore the following enter_notify events */
+ xcb_event_set_configure_notify_handler(&evenths, handle_configure_event, NULL);
+
+ /* 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);
+
+ /* Initialize the property handlers */
+ xcb_property_handlers_init(&prophs, &evenths);
+
+ /* Watch size hints (to obey correct aspect ratio) */
+ xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL);
+
+ /* Get the root window and set the event mask */
+ 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);
+
+ /* 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"); \
+ exit(-1); \
+ } \
+ atoms[name] = reply->atom; \
+ free(reply); \
+ }
+
+ 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);
+
+ 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");
+ /* Set up the window manager’s name */
+ 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_all_keys(conn);
+
+ /* Autostarting exec-lines */
+ struct Autostart *exec;
+ 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);
+
+ 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");
+ return 1;
+ }
+
+ i3Screen *screen = get_screen_containing(reply->root_x, reply->root_y);
+ if (screen == NULL) {
+ LOG("ERROR: No screen at %d x %d, starting on the first screen\n",
+ reply->root_x, reply->root_y);
+ screen = TAILQ_FIRST(virtual_screens);
+ }
+
+ LOG("Starting on %d\n", screen->current_workspace);
+ c_ws = &workspaces[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) {
+ LOG("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);
+ }
+ }
+
+ /* Handle the events which arrived until now */
+ xcb_check_cb(NULL, NULL, 0);
+
+ /* 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