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 xcb_connection_t *conn;
61 static xcb_get_modifier_mapping_reply_t *modmap_reply;
62 static uint32_t font_id;
63 static uint32_t font_bold_id;
64 static char *socket_path;
65 static int font_height;
66 static int font_bold_height;
67 static xcb_window_t win;
68 static xcb_pixmap_t pixmap;
69 static xcb_gcontext_t pixmap_gc;
70 static xcb_key_symbols_t *symbols;
74 char *rewrite_binding(const char *bindingline);
78 * This function resolves ~ in pathnames.
79 * It may resolve wildcards in the first part of the path, but if no match
80 * or multiple matches are found, it just returns a copy of path as given.
83 static char *resolve_tilde(const char *path) {
84 static glob_t globbuf;
85 char *head, *tail, *result;
87 tail = strchr(path, '/');
88 head = strndup(path, tail ? tail - path : strlen(path));
90 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
92 /* no match, or many wildcard matches are bad */
93 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
94 result = strdup(path);
96 err(1, "glob() failed");
98 head = globbuf.gl_pathv[0];
99 result = calloc(1, strlen(head) + (tail ? strlen(tail) : 0) + 1);
100 strncpy(result, head, strlen(head));
102 strncat(result, tail, strlen(tail));
110 * Handles expose events, that is, draws the window contents.
113 static int handle_expose() {
114 /* re-draw the background */
115 xcb_rectangle_t border = {0, 0, 300, (15*font_height) + 8};
116 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#000000") });
117 xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
119 xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ font_id });
121 #define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font_height) + 2, text)
123 if (current_step == STEP_WELCOME) {
124 /* restore font color */
125 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") });
127 txt(10, 2, "You have not configured i3 yet.");
128 txt(10, 3, "Do you want me to generate ~/.i3/config?");
129 txt(85, 5, "Yes, generate ~/.i3/config");
130 txt(85, 7, "No, I will use the defaults");
133 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#00FF00") });
134 txt(25, 5, "<Enter>");
137 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") });
141 if (current_step == STEP_GENERATE) {
142 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") });
144 txt(10, 2, "Please choose either:");
145 txt(85, 4, "Win as default modifier");
146 txt(85, 5, "Alt as default modifier");
147 txt(10, 7, "Afterwards, press");
148 txt(85, 9, "to write ~/.i3/config");
149 txt(85, 10, "to abort");
151 /* the not-selected modifier */
152 if (modifier == MOD_Mod4)
154 else txt(31, 4, "<Win>");
156 /* the selected modifier */
157 xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ font_bold_id });
158 if (modifier == MOD_Mod4)
160 else txt(31, 5, "<Alt>");
163 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND | XCB_GC_FONT,
164 (uint32_t[]) { get_colorpixel("#00FF00"), font_id });
166 txt(25, 9, "<Enter>");
169 xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") });
170 txt(31, 10, "<ESC>");
173 /* Copy the contents of the pixmap to the real window */
174 xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
180 static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
181 printf("Keypress %d, state raw = %d\n", event->detail, event->state);
183 /* Remove the numlock bit, all other bits are modifiers we can bind to */
184 uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
185 /* Only use the lower 8 bits of the state (modifier masks) so that mouse
186 * button masks are filtered out */
187 state_filtered &= 0xFF;
189 xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, state_filtered);
191 printf("sym = %c (%d)\n", sym, sym);
193 if (sym == XK_Return || sym == XK_KP_Enter) {
194 if (current_step == STEP_WELCOME) {
195 current_step = STEP_GENERATE;
196 /* Set window title */
197 xcb_change_property(conn,
198 XCB_PROP_MODE_REPLACE,
203 strlen("i3: generate config"),
204 "i3: generate config");
210 /* cancel any time */
211 if (sym == XK_Escape)
214 /* Check if this is Mod1 or Mod4. The modmap contains Shift, Lock, Control,
215 * Mod1, Mod2, Mod3, Mod4, Mod5 (in that order) */
216 xcb_keycode_t *modmap = xcb_get_modifier_mapping_keycodes(modmap_reply);
219 for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
220 xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
221 if (code == XCB_NONE)
223 printf("Modifier keycode for Mod1: 0x%02x\n", code);
224 if (code == event->detail) {
226 printf("This is Mod1!\n");
232 for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
233 xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
234 if (code == XCB_NONE)
236 printf("Modifier keycode for Mod4: 0x%02x\n", code);
237 if (code == event->detail) {
239 printf("This is Mod4!\n");
248 * Handle button presses to make clicking on "<win>" and "<alt>" work
251 static void handle_button_press(xcb_button_press_event_t* event) {
252 if (current_step != STEP_GENERATE)
255 if (event->event_x >= 32 && event->event_x <= 68 &&
256 event->event_y >= 45 && event->event_y <= 54) {
261 if (event->event_x >= 32 && event->event_x <= 68 &&
262 event->event_y >= 56 && event->event_y <= 70) {
271 * Creates the config file and tells i3 to reload.
274 static void finish() {
275 printf("creating \"%s\"...\n", config_path);
277 if (!(dpy = XOpenDisplay(NULL)))
278 errx(1, "Could not connect to X11");
280 FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r");
281 if (kc_config == NULL)
282 err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes");
284 FILE *ks_config = fopen(config_path, "w");
285 if (ks_config == NULL)
286 err(1, "Could not open output config file \"%s\"", config_path);
290 #if !defined(__APPLE__)
293 bool head_of_file = true;
295 /* write a header about auto-generation to the output file */
296 fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config);
297 fputs("# It will not be overwritten, so edit it as you like.\n", ks_config);
298 fputs("#\n", ks_config);
299 fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config);
300 fputs("# this file and re-run i3-config-wizard(1).\n", ks_config);
301 fputs("#\n", ks_config);
303 #if defined(__APPLE__)
304 while ((line = fgetln(kc_config, &len)) != NULL) {
306 while ((read = getline(&line, &len, kc_config)) != -1) {
308 /* skip the warning block at the beginning of the input file */
310 strncmp("# WARNING", line, strlen("# WARNING")) == 0)
313 head_of_file = false;
315 /* Skip leading whitespace */
317 while (isspace(*walk) && walk < (line + len))
320 /* Set the modifier the user chose */
321 if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) {
322 if (modifier == MOD_Mod1)
323 fputs("set $mod Mod1\n", ks_config);
324 else fputs("set $mod Mod4\n", ks_config);
328 /* Check for 'bindcode'. If it’s not a bindcode line, we
329 * just copy it to the output file */
330 if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) {
331 fputs(line, ks_config);
334 char *result = rewrite_binding(walk);
335 fputs(result, ks_config);
339 /* sync to do our best in order to have the file really stored on disk */
341 fsync(fileno(ks_config));
347 /* tell i3 to reload the config file */
348 int sockfd = ipc_connect(socket_path);
349 ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload");
355 int main(int argc, char *argv[]) {
356 config_path = resolve_tilde("~/.i3/config");
357 socket_path = getenv("I3SOCK");
358 char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
359 char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
360 int o, option_index = 0;
362 static struct option long_options[] = {
363 {"socket", required_argument, 0, 's'},
364 {"version", no_argument, 0, 'v'},
365 {"limit", required_argument, 0, 'l'},
366 {"prompt", required_argument, 0, 'P'},
367 {"prefix", required_argument, 0, 'p'},
368 {"font", required_argument, 0, 'f'},
369 {"help", no_argument, 0, 'h'},
373 char *options_string = "s:vh";
375 while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
379 socket_path = strdup(optarg);
382 printf("i3-config-wizard " I3_VERSION "\n");
385 printf("i3-config-wizard " I3_VERSION "\n");
386 printf("i3-config-wizard [-s <socket>] [-v]\n");
391 /* Check if the destination config file does not exist but the path is
392 * writable. If not, exit now, this program is not useful in that case. */
394 if (stat(config_path, &stbuf) == 0) {
395 printf("The config file \"%s\" already exists. Exiting.\n", config_path);
399 /* Create ~/.i3 if it does not yet exist */
400 char *config_dir = resolve_tilde("~/.i3");
401 if (stat(config_dir, &stbuf) != 0)
402 if (mkdir(config_dir, 0755) == -1)
403 err(1, "mkdir(%s) failed", config_dir);
407 if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
408 printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
414 if (socket_path == NULL)
415 socket_path = socket_path_from_x11();
417 if (socket_path == NULL)
418 socket_path = "/tmp/i3-ipc.sock";
421 if ((conn = xcb_connect(NULL, &screens)) == NULL ||
422 xcb_connection_has_error(conn))
423 errx(1, "Cannot open display\n");
425 xcb_get_modifier_mapping_cookie_t modmap_cookie;
426 modmap_cookie = xcb_get_modifier_mapping(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 /* XXX: we should refactor xcb_get_numlock_mask so that it uses the
441 * modifier mapping we already have */
442 xcb_get_numlock_mask(conn);
444 symbols = xcb_key_symbols_alloc(conn);
446 font_id = get_font_id(conn, pattern, &font_height);
447 font_bold_id = get_font_id(conn, patternbold, &font_bold_height);
449 /* Open an input window */
450 win = open_input_window(conn, 300, 205);
452 /* Setup NetWM atoms */
453 #define xmacro(name) \
455 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
457 errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \
459 A_ ## name = reply->atom; \
462 #include "atoms.xmacro"
466 xcb_change_property(conn,
467 XCB_PROP_MODE_REPLACE,
469 A__NET_WM_WINDOW_TYPE,
473 (unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG);
475 /* Set window title */
476 xcb_change_property(conn,
477 XCB_PROP_MODE_REPLACE,
482 strlen("i3: first configuration"),
483 "i3: first configuration");
486 pixmap = xcb_generate_id(conn);
487 pixmap_gc = xcb_generate_id(conn);
488 xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
489 xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
491 /* Grab the keyboard to get all input */
494 /* Try (repeatedly, if necessary) to grab the keyboard. We might not
495 * get the keyboard at the first attempt because of the keybinding
496 * still being active when started via a wm’s keybinding. */
497 xcb_grab_keyboard_cookie_t cookie;
498 xcb_grab_keyboard_reply_t *reply = NULL;
501 while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
502 cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
503 reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
507 if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
508 fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
514 xcb_generic_event_t *event;
515 while ((event = xcb_wait_for_event(conn)) != NULL) {
516 if (event->response_type == 0) {
517 fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
521 /* Strip off the highest bit (set if the event is generated) */
522 int type = (event->response_type & 0x7F);
526 handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
529 /* TODO: handle mappingnotify */
531 case XCB_BUTTON_PRESS:
532 handle_button_press((xcb_button_press_event_t*)event);