*
* 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 <stdbool.h>
#include <assert.h>
#include <limits.h>
-
-#include <xcb/xcb.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 <ev.h>
#include "config.h"
-#include "queue.h"
-#include "table.h"
-#include "font.h"
-#include "layout.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 "randr.h"
#include "xinerama.h"
-#include "i3.h"
+#include "manage.h"
+#include "ipc.h"
+#include "log.h"
+#include "sighandler.h"
+
+static int xkb_event_base;
+
+int xkb_current_group;
+
+xcb_connection_t *global_conn;
/* This is the path to i3, copied from argv[0] when starting up */
-char *application_path;
+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);
+
+/* The list of assignments */
+struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
/* 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);
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;
+
/*
- * Do some sanity checks and then reparent the window.
+ * 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) {
- /* Check if the window is mapped (it could be not mapped when intializing and
- calling manage_window() for every window) */
- if ((attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0)) == NULL)
- return;
-
- if (attr->map_state != XCB_MAP_STATE_VIEWABLE)
- goto out;
-
- wa.tag = TAG_VALUE;
- wa.u.override_redirect = attr->override_redirect;
- }
-
- /* Check if the window is already managed */
- if (!wa.u.override_redirect && table_get(byChild, window))
- goto out;
-
- /* Don’t manage clients with the override_redirect flag */
- if (wa.u.override_redirect)
- goto out;
-
- /* Get the initial geometry (position, size, …) */
- 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(geom);
-out:
- free(attr);
- return;
+static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
+ /* empty, because xcb_prepare_cb and xcb_check_cb are used */
}
/*
- * reparent_window() gets called when a new window was opened and becomes a child of the root
- * window, or it gets called by us when we manage the already existing windows at startup.
+ * Flush before blocking (and waiting for new events)
*
- * Essentially, this is the point, where we take over control.
+ */
+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.
*
*/
-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) {
-
- xcb_get_property_cookie_t wm_type_cookie, strut_cookie;
-
- /* Place requests for properties ASAP */
- wm_type_cookie = xcb_get_any_property_unchecked(conn, false, child, atoms[_NET_WM_WINDOW_TYPE], UINT32_MAX);
- strut_cookie = xcb_get_any_property_unchecked(conn, false, child, atoms[_NET_WM_STRUT_PARTIAL], UINT32_MAX);
-
- Client *new = table_get(byChild, child);
- if (new == NULL) {
- /* TODO: When does this happen for existing clients? Is that a bug? */
- printf("oh, it's new\n");
- new = calloc(sizeof(Client), 1);
- new->force_reconfigure = true;
- }
- uint32_t mask = 0;
- uint32_t values[3];
-
- /* Update the data structures */
- CUR_CELL->currently_focused = new;
- new->container = CUR_CELL;
-
- new->frame = xcb_generate_id(conn);
- new->child = child;
- new->rect.width = width;
- new->rect.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);
-
- i3Font *font = load_font(conn, config.font);
- width = min(width, c_ws->rect.x + c_ws->rect.width);
- height = min(height, c_ws->rect.y + c_ws->rect.height);
-
- Rect framerect = {x, y,
- width + 2 + 2, /* 2 px border at each side */
- height + 2 + 2 + font->height}; /* 2 px border plus font’s height */
-
- /* Yo dawg, I heard you like windows, so I create a window around your window… */
- new->frame = create_window(conn, framerect, XCB_WINDOW_CLASS_INPUT_OUTPUT, mask, values);
-
- /* Put the client inside the save set. Upon termination (whether killed or normal exit
- does not matter) of the window manager, these clients will be correctly reparented
- to their most closest living ancestor (= cleanup) */
- xcb_change_save_set(conn, XCB_SET_MODE_INSERT, child);
-
- /* Generate a graphics context for the titlebar */
- new->titlegc = xcb_generate_id(conn);
- xcb_create_gc(conn, new->titlegc, new->frame, 0, 0);
-
- /* 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 */
- new->awaiting_useless_unmap = true;
- xcb_void_cookie_t cookie = xcb_reparent_window_checked(conn, child, new->frame, 0, font->height);
- check_error(conn, cookie, "Could not reparent window");
-
- /* 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;
- cookie = xcb_change_window_attributes_checked(conn, child, mask, values);
- check_error(conn, cookie, "Could not change window attributes");
-
- /* 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_SYNC, 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_POINTER_ROOT, new->child, XCB_CURRENT_TIME);
-
- /* Get _NET_WM_WINDOW_TYPE (to see if it’s a dock) */
- xcb_atom_t *atom;
- xcb_get_property_reply_t *preply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
- if (preply != NULL && preply->value_len > 0 && (atom = xcb_get_property_value(preply))) {
- for (int i = 0; i < xcb_get_property_value_length(preply); i++)
- if (atom[i] == atoms[_NET_WM_WINDOW_TYPE_DOCK]) {
- printf("Window is a dock.\n");
- new->dock = true;
- new->titlebar_position = TITLEBAR_OFF;
- new->force_reconfigure = true;
- new->container = NULL;
- SLIST_INSERT_HEAD(&(c_ws->dock_clients), new, dock_clients);
- }
- }
+static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
+ xcb_generic_event_t *event;
- /* Get _NET_WM_STRUT_PARTIAL to determine the client’s requested height */
- uint32_t *strut;
- preply = xcb_get_property_reply(conn, strut_cookie, NULL);
- if (preply != NULL && preply->value_len > 0 && (strut = xcb_get_property_value(preply))) {
- /* We only use a subset of the provided values, namely the reserved space at the top/bottom
- of the screen. This is because the only possibility for bars is at to be at the top/bottom
- with maximum horizontal size.
- TODO: bars at the top */
- new->desired_height = strut[3];
- printf("the client wants to be %d pixels height\n", new->desired_height);
+ while ((event = xcb_poll_for_event(evenths.c)) != NULL) {
+ xcb_event_handle(&evenths, event);
+ free(event);
}
-
- /* Insert into the currently active container, if it’s not a dock window */
- if (!new->dock)
- CIRCLEQ_INSERT_TAIL(&(CUR_CELL->clients), new, clients);
-
- render_layout(conn);
}
/*
- * Go through all existing windows (if the window manager is restarted) and manage them
+ * When using xmodmap to change the keyboard mapping, this event
+ * is only sent via XKB. Therefore, we need this special handler.
*
*/
-void manage_existing_windows(xcb_connection_t *c, xcb_property_handlers_t *prophs, xcb_window_t root) {
- xcb_query_tree_reply_t *reply;
- int i, len;
- xcb_window_t *children;
- xcb_get_window_attributes_cookie_t *cookies;
-
- /* Get the tree of windows whose parent is the root window (= all) */
- if ((reply = xcb_query_tree_reply(c, xcb_query_tree(c, root), 0)) == NULL)
- return;
+static void xkb_got_event(EV_P_ struct ev_io *w, int revents) {
+ DLOG("Handling XKB event\n");
+ XkbEvent ev;
+
+ /* When using xmodmap, every change (!) gets an own event.
+ * Therefore, we just read all events and only handle the
+ * mapping_notify once. */
+ bool mapping_changed = false;
+ while (XPending(xkbdpy)) {
+ XNextEvent(xkbdpy, (XEvent*)&ev);
+ /* While we should never receive a non-XKB event,
+ * better do sanity checking */
+ if (ev.type != xkb_event_base)
+ continue;
+
+ if (ev.any.xkb_type == XkbMapNotify) {
+ mapping_changed = true;
+ continue;
+ }
+
+ if (ev.any.xkb_type != XkbStateNotify) {
+ ELOG("Unknown XKB event received (type %d)\n", ev.any.xkb_type);
+ continue;
+ }
+
+ /* See The XKB Extension: Library Specification, section 14.1 */
+ /* We check if the current group (each group contains
+ * two levels) has been changed. Mode_switch activates
+ * group XkbGroup2Index */
+ if (xkb_current_group == ev.state.group)
+ continue;
+
+ xkb_current_group = ev.state.group;
+
+ if (ev.state.group == XkbGroup2Index) {
+ DLOG("Mode_switch enabled\n");
+ grab_all_keys(global_conn, true);
+ }
+
+ if (ev.state.group == XkbGroup1Index) {
+ DLOG("Mode_switch disabled\n");
+ ungrab_all_keys(global_conn);
+ grab_all_keys(global_conn, false);
+ }
+ }
- len = xcb_query_tree_children_length(reply);
- cookies = smalloc(len * sizeof(*cookies));
+ if (!mapping_changed)
+ return;
- /* Request the window attributes for every window */
- children = xcb_query_tree_children(reply);
- for(i = 0; i < len; ++i)
- cookies[i] = xcb_get_window_attributes(c, children[i]);
+ DLOG("Keyboard mapping changed, updating keybindings\n");
+ xcb_key_symbols_free(keysyms);
+ keysyms = xcb_key_symbols_alloc(global_conn);
- /* Call manage_window with the attributes for every window */
- for(i = 0; i < len; ++i) {
- window_attributes_t wa = { TAG_COOKIE, { cookies[i] } };
- manage_window(prophs, c, children[i], wa);
- }
+ xcb_get_numlock_mask(global_conn);
- free(reply);
+ ungrab_all_keys(global_conn);
+ DLOG("Re-grabbing...\n");
+ translate_keysyms();
+ grab_all_keys(global_conn, (xkb_current_group == XkbGroup2Index));
+ DLOG("Done\n");
}
+
int main(int argc, char *argv[], char *env[]) {
- int i, screens;
- xcb_connection_t *c;
+ int i, screens, opt;
+ char *override_configpath = NULL;
+ bool autostart = true;
+ bool only_check_config = false;
+ bool force_xinerama = false;
+ xcb_connection_t *conn;
xcb_property_handlers_t prophs;
- xcb_window_t root;
xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
-
- if (!isatty(stdout))
+ 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;
+
+ setlocale(LC_ALL, "");
+
+ /* Disable output buffering to make redirects in .xsession actually useful for debugging */
+ if (!isatty(fileno(stdout)))
setbuf(stdout, NULL);
- application_path = sstrdup(argv[0]);
+ 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 " © 2009-2010 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 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));
- byChild = alloc_table();
- byParent = alloc_table();
+ conn = global_conn = xcb_connect(NULL, &screens);
+
+ if (xcb_connection_has_error(conn))
+ die("Cannot open display\n");
- load_configuration("i3.config");
+ /* Get the root window */
+ xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
+ root = root_screen->root;
+ root_depth = root_screen->root_depth;
- c = 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(c, 0, strlen(#name), #name);
+ #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_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;
major = XkbMajorVersion;
minor = XkbMinorVersion;
- int evBase, errBase;
+ int errBase;
- if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &evBase, &errBase, &major, &minor, &error)) == NULL) {
- fprintf(stderr, "XkbOpenDisplay() failed\n");
- return 1;
+ if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &xkb_event_base, &errBase, &major, &minor, &error)) == NULL) {
+ 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,&xkb_event_base,&errBase,&major,&minor)) {
+ fprintf(stderr, "XKB not supported by X-server\n");
+ return 1;
+ }
+ /* end of ugliness */
+
+ if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd,
+ XkbMapNotifyMask | XkbStateNotifyMask,
+ XkbMapNotifyMask | XkbStateNotifyMask)) {
+ fprintf(stderr, "Could not set XKB event mask\n");
+ return 1;
+ }
}
- /* end of ugliness */
- xcb_event_handlers_init(c, &evenths);
+ /* 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);
/* DEBUG: Trap all events and print them */
for (i = 2; i < 128; ++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, 0);
+ 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, 0);
- xcb_event_set_key_release_handler(&evenths, handle_key_release, 0);
+ /* Key presses are pretty obvious, I think */
+ xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL);
/* Enter window = user moved his mouse over the window */
- xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, 0);
+ 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, 0);
+ xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL);
/* Map notify = there is a new window */
- xcb_event_set_map_notify_handler(&evenths, handle_map_notify_event, &prophs);
+ 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, 0);
+ xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL);
+
+ /* Destroy notify is handled the same as unmap notify */
+ xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_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);
- /* Client message = client changed its properties (EWMH) */
- /* TODO: can’t we do this via property handlers? */
- xcb_event_set_client_message_handler(&evenths, handle_client_message, 0);
+ /* 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 the WM_NAME (= title of the window) property */
- xcb_watch_wm_name(&prophs, 128, handle_windowname_change, 0);
-
- /* Get the root window and set the event mask */
- root = xcb_aux_get_screen(c, screens)->root;
+ /* Watch size hints (to obey correct aspect ratio) */
+ xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL);
+ /* set event mask */
uint32_t mask = XCB_CW_EVENT_MASK;
- uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
+ 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(c, 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(c, atom_cookies[name], NULL); \
+ xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \
if (!reply) { \
- printf("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, window_type_handler, NULL);
+ 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 */
- /* Set up the atoms we support */
- check_error(c, xcb_change_property_checked(c, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTED],
- ATOM, 32, 7, atoms), "Could not set _NET_SUPPORTED");
+ /* 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, 16, atoms), "Could not set _NET_SUPPORTED");
/* Set up the window manager’s name */
- xcb_change_property(c, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTING_WM_CHECK], WINDOW, 32, 1, &root);
- xcb_change_property(c, XCB_PROP_MODE_REPLACE, root, atoms[_NET_WM_NAME], atoms[UTF8_STRING], 8, strlen("i3"), "i3");
-
- /* Grab the bound keys */
- 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);
- }
+ 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");
- /* check for Xinerama */
- printf("Checking for Xinerama...\n");
- initialize_xinerama(c);
+ keysyms = xcb_key_symbols_alloc(conn);
- /* DEBUG: Start a terminal */
- start_application(config.terminal);
+ xcb_get_numlock_mask(conn);
- xcb_flush(c);
+ translate_keysyms();
+ grab_all_keys(conn, false);
- manage_existing_windows(c, &prophs, root);
+ int randr_base = -1;
+ if (force_xinerama) {
+ initialize_xinerama(conn);
+ } else {
+ DLOG("Checking for XRandR...\n");
+ initialize_randr(conn, &randr_base);
+
+ if (randr_base != -1)
+ xcb_event_set_handler(&evenths,
+ randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
+ handle_screen_change,
+ NULL);
+ }
+
+ 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(c, xcb_query_pointer(c, root), NULL)) == NULL) {
- printf("Could not get pointer position\n");
+ if ((reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL)) == NULL) {
+ ELOG("Could not get pointer position\n");
return 1;
}
- i3Screen *screen = get_screen_containing(reply->root_x, reply->root_y);
+ Output *screen = get_output_containing(reply->root_x, reply->root_y);
if (screen == NULL) {
- printf("ERROR: No such screen\n");
- 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();
+ }
+
+ 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);
+ }
}
- if (screen->current_workspace != 0) {
- printf("Ok, I need to go to the other workspace\n");
- c_ws = &workspaces[screen->current_workspace];
+
+ /* Handle the events which arrived until now */
+ xcb_check_cb(NULL, NULL, 0);
+
+ setup_signal_handler();
+
+ /* Ignore SIGPIPE to survive errors when an IPC client disconnects
+ * while we are sending him a message */
+ signal(SIGPIPE, SIG_IGN);
+
+ /* Ungrab the server to receive events and enter libev’s eventloop */
+ xcb_ungrab_server(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);
+ }
}
- /* Enter xcb’s event handler */
- xcb_event_wait_for_event_loop(&evenths);
+ ev_loop(loop, 0);
/* not reached */
return 0;