2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
7 * i3-config-wizard: Program to convert configs using keycodes to configs using
11 #if defined(__FreeBSD__)
12 #include <sys/param.h>
15 /* For systems without getline, fall back to fgetln */
16 #if defined(__APPLE__) || (defined(__FreeBSD__) && __FreeBSD_version < 800000) || defined(__OpenBSD__)
18 #elif defined(__FreeBSD__)
19 /* Defining this macro before including stdio.h is necessary in order to have
20 * a prototype for getline in FreeBSD. */
26 #include <sys/types.h>
42 #include <xcb/xcb_aux.h>
43 #include <xcb/xcb_event.h>
44 #include <xcb/xcb_keysyms.h>
47 #include <X11/keysym.h>
49 /* We need SYSCONFDIR for the path to the keycode config template, so raise an
50 * error if it’s not defined for whatever reason */
52 #error "SYSCONFDIR not defined"
55 #define FREE(pointer) do { \
56 if (pointer != NULL) { \
66 enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
67 enum { MOD_Mod1, MOD_Mod4 } modifier = MOD_Mod4;
69 static char *config_path;
70 static uint32_t xcb_numlock_mask;
71 xcb_connection_t *conn;
72 xcb_screen_t *root_screen;
73 static xcb_get_modifier_mapping_reply_t *modmap_reply;
75 static i3Font bold_font;
76 static char *socket_path;
77 static xcb_window_t win;
78 static xcb_pixmap_t pixmap;
79 static xcb_gcontext_t pixmap_gc;
80 static xcb_key_symbols_t *symbols;
84 char *rewrite_binding(const char *bindingline);
88 * This function resolves ~ in pathnames.
89 * It may resolve wildcards in the first part of the path, but if no match
90 * or multiple matches are found, it just returns a copy of path as given.
93 static char *resolve_tilde(const char *path) {
94 static glob_t globbuf;
95 char *head, *tail, *result;
97 tail = strchr(path, '/');
98 head = strndup(path, tail ? tail - path : strlen(path));
100 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
102 /* no match, or many wildcard matches are bad */
103 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
104 result = strdup(path);
106 err(1, "glob() failed");
108 head = globbuf.gl_pathv[0];
109 result = calloc(1, strlen(head) + (tail ? strlen(tail) : 0) + 1);
110 strncpy(result, head, strlen(head));
112 strncat(result, tail, strlen(tail));
120 * Handles expose events, that is, draws the window contents.
123 static int handle_expose() {
124 /* re-draw the background */
125 xcb_rectangle_t border = {0, 0, 300, (15 * font.height) + 8};
126 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#000000") });
127 xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
131 #define txt(x, row, text) \
132 draw_text_ascii(text, pixmap, pixmap_gc,\
133 x, (row - 1) * font.height + 4, 300 - x * 2)
135 if (current_step == STEP_WELCOME) {
136 /* restore font color */
137 set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
139 txt(10, 2, "You have not configured i3 yet.");
140 txt(10, 3, "Do you want me to generate ~/.i3/config?");
141 txt(85, 5, "Yes, generate ~/.i3/config");
142 txt(85, 7, "No, I will use the defaults");
145 set_font_colors(pixmap_gc, get_colorpixel("#00FF00"), get_colorpixel("#000000"));
146 txt(25, 5, "<Enter>");
149 set_font_colors(pixmap_gc, get_colorpixel("#FF0000"), get_colorpixel("#000000"));
153 if (current_step == STEP_GENERATE) {
154 set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
156 txt(10, 2, "Please choose either:");
157 txt(85, 4, "Win as default modifier");
158 txt(85, 5, "Alt as default modifier");
159 txt(10, 7, "Afterwards, press");
160 txt(85, 9, "to write ~/.i3/config");
161 txt(85, 10, "to abort");
163 /* the not-selected modifier */
164 if (modifier == MOD_Mod4)
166 else txt(31, 4, "<Win>");
168 /* the selected modifier */
169 set_font(&bold_font);
170 set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
171 if (modifier == MOD_Mod4)
172 txt(10, 4, "-> <Win>");
173 else txt(10, 5, "-> <Alt>");
177 set_font_colors(pixmap_gc, get_colorpixel("#00FF00"), get_colorpixel("#000000"));
178 txt(25, 9, "<Enter>");
181 set_font_colors(pixmap_gc, get_colorpixel("#FF0000"), get_colorpixel("#000000"));
182 txt(31, 10, "<ESC>");
185 /* Copy the contents of the pixmap to the real window */
186 xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
192 static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
193 printf("Keypress %d, state raw = %d\n", event->detail, event->state);
195 /* Remove the numlock bit, all other bits are modifiers we can bind to */
196 uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
197 /* Only use the lower 8 bits of the state (modifier masks) so that mouse
198 * button masks are filtered out */
199 state_filtered &= 0xFF;
201 xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, state_filtered);
203 printf("sym = %c (%d)\n", sym, sym);
205 if (sym == XK_Return || sym == XK_KP_Enter) {
206 if (current_step == STEP_WELCOME) {
207 current_step = STEP_GENERATE;
208 /* Set window title */
209 xcb_change_property(conn,
210 XCB_PROP_MODE_REPLACE,
215 strlen("i3: generate config"),
216 "i3: generate config");
222 /* cancel any time */
223 if (sym == XK_Escape)
226 /* Check if this is Mod1 or Mod4. The modmap contains Shift, Lock, Control,
227 * Mod1, Mod2, Mod3, Mod4, Mod5 (in that order) */
228 xcb_keycode_t *modmap = xcb_get_modifier_mapping_keycodes(modmap_reply);
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 Mod1: 0x%02x\n", code);
236 if (code == event->detail) {
238 printf("This is Mod1!\n");
244 for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
245 xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
246 if (code == XCB_NONE)
248 printf("Modifier keycode for Mod4: 0x%02x\n", code);
249 if (code == event->detail) {
251 printf("This is Mod4!\n");
260 * Handle button presses to make clicking on "<win>" and "<alt>" work
263 static void handle_button_press(xcb_button_press_event_t* event) {
264 if (current_step != STEP_GENERATE)
267 if (event->event_x >= 32 && event->event_x <= 68 &&
268 event->event_y >= 45 && event->event_y <= 54) {
273 if (event->event_x >= 32 && event->event_x <= 68 &&
274 event->event_y >= 56 && event->event_y <= 70) {
283 * Creates the config file and tells i3 to reload.
286 static void finish() {
287 printf("creating \"%s\"...\n", config_path);
289 if (!(dpy = XOpenDisplay(NULL)))
290 errx(1, "Could not connect to X11");
292 FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r");
293 if (kc_config == NULL)
294 err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes");
296 FILE *ks_config = fopen(config_path, "w");
297 if (ks_config == NULL)
298 err(1, "Could not open output config file \"%s\"", config_path);
306 bool head_of_file = true;
308 /* write a header about auto-generation to the output file */
309 fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config);
310 fputs("# It will not be overwritten, so edit it as you like.\n", ks_config);
311 fputs("#\n", ks_config);
312 fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config);
313 fputs("# this file and re-run i3-config-wizard(1).\n", ks_config);
314 fputs("#\n", ks_config);
318 while ((buf = fgetln(kc_config, &len)) != NULL) {
319 /* fgetln does not return null-terminated strings */
321 sasprintf(&line, "%.*s", len, buf);
324 while ((read = getline(&line, &linecap, kc_config)) != -1) {
327 /* skip the warning block at the beginning of the input file */
329 strncmp("# WARNING", line, strlen("# WARNING")) == 0)
332 head_of_file = false;
334 /* Skip leading whitespace */
336 while (isspace(*walk) && walk < (line + len)) {
337 /* Pre-output the skipped whitespaces to keep proper indentation */
338 fputc(*walk, ks_config);
342 /* Set the modifier the user chose */
343 if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) {
344 if (modifier == MOD_Mod1)
345 fputs("set $mod Mod1\n", ks_config);
346 else fputs("set $mod Mod4\n", ks_config);
350 /* Check for 'bindcode'. If it’s not a bindcode line, we
351 * just copy it to the output file */
352 if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) {
353 fputs(walk, ks_config);
356 char *result = rewrite_binding(walk);
357 fputs(result, ks_config);
361 /* sync to do our best in order to have the file really stored on disk */
363 fsync(fileno(ks_config));
372 /* tell i3 to reload the config file */
373 int sockfd = ipc_connect(socket_path);
374 ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload");
380 int main(int argc, char *argv[]) {
381 config_path = resolve_tilde("~/.i3/config");
382 socket_path = getenv("I3SOCK");
383 char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
384 char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
385 int o, option_index = 0;
387 static struct option long_options[] = {
388 {"socket", required_argument, 0, 's'},
389 {"version", no_argument, 0, 'v'},
390 {"limit", required_argument, 0, 'l'},
391 {"prompt", required_argument, 0, 'P'},
392 {"prefix", required_argument, 0, 'p'},
393 {"font", required_argument, 0, 'f'},
394 {"help", no_argument, 0, 'h'},
398 char *options_string = "s:vh";
400 while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
404 socket_path = strdup(optarg);
407 printf("i3-config-wizard " I3_VERSION "\n");
410 printf("i3-config-wizard " I3_VERSION "\n");
411 printf("i3-config-wizard [-s <socket>] [-v]\n");
416 /* Check if the destination config file does not exist but the path is
417 * writable. If not, exit now, this program is not useful in that case. */
419 if (stat(config_path, &stbuf) == 0) {
420 printf("The config file \"%s\" already exists. Exiting.\n", config_path);
424 /* Create ~/.i3 if it does not yet exist */
425 char *config_dir = resolve_tilde("~/.i3");
426 if (stat(config_dir, &stbuf) != 0)
427 if (mkdir(config_dir, 0755) == -1)
428 err(1, "mkdir(%s) failed", config_dir);
432 if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
433 printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
439 if (socket_path == NULL)
440 socket_path = root_atom_contents("I3_SOCKET_PATH");
442 if (socket_path == NULL)
443 socket_path = "/tmp/i3-ipc.sock";
446 if ((conn = xcb_connect(NULL, &screens)) == NULL ||
447 xcb_connection_has_error(conn))
448 errx(1, "Cannot open display\n");
450 xcb_get_modifier_mapping_cookie_t modmap_cookie;
451 modmap_cookie = xcb_get_modifier_mapping(conn);
452 symbols = xcb_key_symbols_alloc(conn);
454 /* Place requests for the atoms we need as soon as possible */
455 #define xmacro(atom) \
456 xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
457 #include "atoms.xmacro"
460 root_screen = xcb_aux_get_screen(conn, screens);
461 root = root_screen->root;
463 if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL)))
464 errx(EXIT_FAILURE, "Could not get modifier mapping\n");
466 xcb_numlock_mask = get_mod_mask_for(XCB_NUM_LOCK, symbols, modmap_reply);
468 font = load_font(pattern, true);
469 bold_font = load_font(patternbold, true);
471 /* Open an input window */
472 win = xcb_generate_id(conn);
475 XCB_COPY_FROM_PARENT,
476 win, /* the window id */
477 root, /* parent == root */
478 490, 297, 300, 205, /* dimensions */
479 0, /* X11 border = 0, we draw our own */
480 XCB_WINDOW_CLASS_INPUT_OUTPUT,
481 XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
482 XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,
484 0, /* back pixel: black */
485 XCB_EVENT_MASK_EXPOSURE |
486 XCB_EVENT_MASK_BUTTON_PRESS
489 /* Map the window (make it visible) */
490 xcb_map_window(conn, win);
492 /* Setup NetWM atoms */
493 #define xmacro(name) \
495 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
497 errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \
499 A_ ## name = reply->atom; \
502 #include "atoms.xmacro"
506 xcb_change_property(conn,
507 XCB_PROP_MODE_REPLACE,
509 A__NET_WM_WINDOW_TYPE,
513 (unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG);
515 /* Set window title */
516 xcb_change_property(conn,
517 XCB_PROP_MODE_REPLACE,
522 strlen("i3: first configuration"),
523 "i3: first configuration");
526 pixmap = xcb_generate_id(conn);
527 pixmap_gc = xcb_generate_id(conn);
528 xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
529 xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
531 /* Grab the keyboard to get all input */
534 /* Try (repeatedly, if necessary) to grab the keyboard. We might not
535 * get the keyboard at the first attempt because of the keybinding
536 * still being active when started via a wm’s keybinding. */
537 xcb_grab_keyboard_cookie_t cookie;
538 xcb_grab_keyboard_reply_t *reply = NULL;
541 while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
542 cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
543 reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
547 if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
548 fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
554 xcb_generic_event_t *event;
555 while ((event = xcb_wait_for_event(conn)) != NULL) {
556 if (event->response_type == 0) {
557 fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
561 /* Strip off the highest bit (set if the event is generated) */
562 int type = (event->response_type & 0x7F);
566 handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
569 /* TODO: handle mappingnotify */
571 case XCB_BUTTON_PRESS:
572 handle_button_press((xcb_button_press_event_t*)event);