2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
6 * © 2011 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
10 * i3-config-wizard: Program to convert configs using keycodes to configs using
16 #include <sys/types.h>
32 #include <xcb/xcb_aux.h>
33 #include <xcb/xcb_event.h>
34 #include <xcb/xcb_keysyms.h>
37 #include <X11/keysym.h>
39 /* We need SYSCONFDIR for the path to the keycode config template, so raise an
40 * error if it’s not defined for whatever reason */
42 #error "SYSCONFDIR not defined"
45 #define FREE(pointer) do { \
46 if (pointer != NULL) { \
56 enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
57 enum { MOD_Mod1, MOD_Mod4 } modifier = MOD_Mod4;
59 static char *config_path;
60 static uint32_t xcb_numlock_mask;
61 xcb_connection_t *conn;
62 static xcb_get_modifier_mapping_reply_t *modmap_reply;
64 static i3Font bold_font;
65 static char *socket_path;
66 static xcb_window_t win;
67 static xcb_pixmap_t pixmap;
68 static xcb_gcontext_t pixmap_gc;
69 static xcb_key_symbols_t *symbols;
73 char *rewrite_binding(const char *bindingline);
77 * This function resolves ~ in pathnames.
78 * It may resolve wildcards in the first part of the path, but if no match
79 * or multiple matches are found, it just returns a copy of path as given.
82 static char *resolve_tilde(const char *path) {
83 static glob_t globbuf;
84 char *head, *tail, *result;
86 tail = strchr(path, '/');
87 head = strndup(path, tail ? tail - path : strlen(path));
89 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
91 /* no match, or many wildcard matches are bad */
92 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
93 result = strdup(path);
95 err(1, "glob() failed");
97 head = globbuf.gl_pathv[0];
98 result = calloc(1, strlen(head) + (tail ? strlen(tail) : 0) + 1);
99 strncpy(result, head, strlen(head));
101 strncat(result, tail, strlen(tail));
109 * Handles expose events, that is, draws the window contents.
112 static int handle_expose() {
113 /* re-draw the background */
114 xcb_rectangle_t border = {0, 0, 300, (15 * font.height) + 8};
115 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#000000") });
116 xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
118 xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ font.id });
120 #define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font.height) + 2, text)
122 if (current_step == STEP_WELCOME) {
123 /* restore font color */
124 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") });
126 txt(10, 2, "You have not configured i3 yet.");
127 txt(10, 3, "Do you want me to generate ~/.i3/config?");
128 txt(85, 5, "Yes, generate ~/.i3/config");
129 txt(85, 7, "No, I will use the defaults");
132 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#00FF00") });
133 txt(25, 5, "<Enter>");
136 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") });
140 if (current_step == STEP_GENERATE) {
141 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") });
143 txt(10, 2, "Please choose either:");
144 txt(85, 4, "Win as default modifier");
145 txt(85, 5, "Alt as default modifier");
146 txt(10, 7, "Afterwards, press");
147 txt(85, 9, "to write ~/.i3/config");
148 txt(85, 10, "to abort");
150 /* the not-selected modifier */
151 if (modifier == MOD_Mod4)
153 else txt(31, 4, "<Win>");
155 /* the selected modifier */
156 xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ bold_font.id });
157 if (modifier == MOD_Mod4)
159 else txt(31, 5, "<Alt>");
162 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND | XCB_GC_FONT,
163 (uint32_t[]) { get_colorpixel("#00FF00"), font.id });
165 txt(25, 9, "<Enter>");
168 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") });
169 txt(31, 10, "<ESC>");
172 /* Copy the contents of the pixmap to the real window */
173 xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
179 static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
180 printf("Keypress %d, state raw = %d\n", event->detail, event->state);
182 /* Remove the numlock bit, all other bits are modifiers we can bind to */
183 uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
184 /* Only use the lower 8 bits of the state (modifier masks) so that mouse
185 * button masks are filtered out */
186 state_filtered &= 0xFF;
188 xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, state_filtered);
190 printf("sym = %c (%d)\n", sym, sym);
192 if (sym == XK_Return || sym == XK_KP_Enter) {
193 if (current_step == STEP_WELCOME) {
194 current_step = STEP_GENERATE;
195 /* Set window title */
196 xcb_change_property(conn,
197 XCB_PROP_MODE_REPLACE,
202 strlen("i3: generate config"),
203 "i3: generate config");
209 /* cancel any time */
210 if (sym == XK_Escape)
213 /* Check if this is Mod1 or Mod4. The modmap contains Shift, Lock, Control,
214 * Mod1, Mod2, Mod3, Mod4, Mod5 (in that order) */
215 xcb_keycode_t *modmap = xcb_get_modifier_mapping_keycodes(modmap_reply);
218 for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
219 xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
220 if (code == XCB_NONE)
222 printf("Modifier keycode for Mod1: 0x%02x\n", code);
223 if (code == event->detail) {
225 printf("This is Mod1!\n");
231 for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
232 xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
233 if (code == XCB_NONE)
235 printf("Modifier keycode for Mod4: 0x%02x\n", code);
236 if (code == event->detail) {
238 printf("This is Mod4!\n");
247 * Handle button presses to make clicking on "<win>" and "<alt>" work
250 static void handle_button_press(xcb_button_press_event_t* event) {
251 if (current_step != STEP_GENERATE)
254 if (event->event_x >= 32 && event->event_x <= 68 &&
255 event->event_y >= 45 && event->event_y <= 54) {
260 if (event->event_x >= 32 && event->event_x <= 68 &&
261 event->event_y >= 56 && event->event_y <= 70) {
270 * Creates the config file and tells i3 to reload.
273 static void finish() {
274 printf("creating \"%s\"...\n", config_path);
276 if (!(dpy = XOpenDisplay(NULL)))
277 errx(1, "Could not connect to X11");
279 FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r");
280 if (kc_config == NULL)
281 err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes");
283 FILE *ks_config = fopen(config_path, "w");
284 if (ks_config == NULL)
285 err(1, "Could not open output config file \"%s\"", config_path);
289 #if !defined(__APPLE__)
292 bool head_of_file = true;
294 /* write a header about auto-generation to the output file */
295 fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config);
296 fputs("# It will not be overwritten, so edit it as you like.\n", ks_config);
297 fputs("#\n", ks_config);
298 fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config);
299 fputs("# this file and re-run i3-config-wizard(1).\n", ks_config);
300 fputs("#\n", ks_config);
302 #if defined(__APPLE__)
303 while ((line = fgetln(kc_config, &len)) != NULL) {
305 while ((read = getline(&line, &len, kc_config)) != -1) {
307 /* skip the warning block at the beginning of the input file */
309 strncmp("# WARNING", line, strlen("# WARNING")) == 0)
312 head_of_file = false;
314 /* Skip leading whitespace */
316 while (isspace(*walk) && walk < (line + len))
319 /* Set the modifier the user chose */
320 if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) {
321 if (modifier == MOD_Mod1)
322 fputs("set $mod Mod1\n", ks_config);
323 else fputs("set $mod Mod4\n", ks_config);
327 /* Check for 'bindcode'. If it’s not a bindcode line, we
328 * just copy it to the output file */
329 if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) {
330 fputs(line, ks_config);
333 char *result = rewrite_binding(walk);
334 fputs(result, ks_config);
338 /* sync to do our best in order to have the file really stored on disk */
340 fsync(fileno(ks_config));
346 /* tell i3 to reload the config file */
347 int sockfd = ipc_connect(socket_path);
348 ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload");
354 int main(int argc, char *argv[]) {
355 config_path = resolve_tilde("~/.i3/config");
356 socket_path = getenv("I3SOCK");
357 char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
358 char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
359 int o, option_index = 0;
361 static struct option long_options[] = {
362 {"socket", required_argument, 0, 's'},
363 {"version", no_argument, 0, 'v'},
364 {"limit", required_argument, 0, 'l'},
365 {"prompt", required_argument, 0, 'P'},
366 {"prefix", required_argument, 0, 'p'},
367 {"font", required_argument, 0, 'f'},
368 {"help", no_argument, 0, 'h'},
372 char *options_string = "s:vh";
374 while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
378 socket_path = strdup(optarg);
381 printf("i3-config-wizard " I3_VERSION "\n");
384 printf("i3-config-wizard " I3_VERSION "\n");
385 printf("i3-config-wizard [-s <socket>] [-v]\n");
390 /* Check if the destination config file does not exist but the path is
391 * writable. If not, exit now, this program is not useful in that case. */
393 if (stat(config_path, &stbuf) == 0) {
394 printf("The config file \"%s\" already exists. Exiting.\n", config_path);
398 /* Create ~/.i3 if it does not yet exist */
399 char *config_dir = resolve_tilde("~/.i3");
400 if (stat(config_dir, &stbuf) != 0)
401 if (mkdir(config_dir, 0755) == -1)
402 err(1, "mkdir(%s) failed", config_dir);
406 if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
407 printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
413 if (socket_path == NULL)
414 socket_path = socket_path_from_x11();
416 if (socket_path == NULL)
417 socket_path = "/tmp/i3-ipc.sock";
420 if ((conn = xcb_connect(NULL, &screens)) == NULL ||
421 xcb_connection_has_error(conn))
422 errx(1, "Cannot open display\n");
424 xcb_get_modifier_mapping_cookie_t modmap_cookie;
425 modmap_cookie = xcb_get_modifier_mapping(conn);
426 symbols = xcb_key_symbols_alloc(conn);
428 /* Place requests for the atoms we need as soon as possible */
429 #define xmacro(atom) \
430 xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
431 #include "atoms.xmacro"
434 xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
435 root = root_screen->root;
437 if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL)))
438 errx(EXIT_FAILURE, "Could not get modifier mapping\n");
440 xcb_numlock_mask = get_mod_mask_for(XCB_NUM_LOCK, symbols, modmap_reply);
442 font = load_font(pattern, true);
443 bold_font = load_font(patternbold, true);
445 /* Open an input window */
446 win = xcb_generate_id(conn);
449 XCB_COPY_FROM_PARENT,
450 win, /* the window id */
451 root, /* parent == root */
452 490, 297, 300, 205, /* dimensions */
453 0, /* X11 border = 0, we draw our own */
454 XCB_WINDOW_CLASS_INPUT_OUTPUT,
455 XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
456 XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,
458 0, /* back pixel: black */
459 XCB_EVENT_MASK_EXPOSURE |
460 XCB_EVENT_MASK_BUTTON_PRESS
463 /* Map the window (make it visible) */
464 xcb_map_window(conn, win);
466 /* Setup NetWM atoms */
467 #define xmacro(name) \
469 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
471 errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \
473 A_ ## name = reply->atom; \
476 #include "atoms.xmacro"
480 xcb_change_property(conn,
481 XCB_PROP_MODE_REPLACE,
483 A__NET_WM_WINDOW_TYPE,
487 (unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG);
489 /* Set window title */
490 xcb_change_property(conn,
491 XCB_PROP_MODE_REPLACE,
496 strlen("i3: first configuration"),
497 "i3: first configuration");
500 pixmap = xcb_generate_id(conn);
501 pixmap_gc = xcb_generate_id(conn);
502 xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
503 xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
505 /* Grab the keyboard to get all input */
508 /* Try (repeatedly, if necessary) to grab the keyboard. We might not
509 * get the keyboard at the first attempt because of the keybinding
510 * still being active when started via a wm’s keybinding. */
511 xcb_grab_keyboard_cookie_t cookie;
512 xcb_grab_keyboard_reply_t *reply = NULL;
515 while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
516 cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
517 reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
521 if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
522 fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
528 xcb_generic_event_t *event;
529 while ((event = xcb_wait_for_event(conn)) != NULL) {
530 if (event->response_type == 0) {
531 fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
535 /* Strip off the highest bit (set if the event is generated) */
536 int type = (event->response_type & 0x7F);
540 handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
543 /* TODO: handle mappingnotify */
545 case XCB_BUTTON_PRESS:
546 handle_button_press((xcb_button_press_event_t*)event);