/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * * © 2011 Michael Stapelberg and contributors * * See file LICENSE for license information. * * i3-config-wizard: Program to convert configs using keycodes to configs using * keysyms. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* We need SYSCONFDIR for the path to the keycode config template, so raise an * error if it’s not defined for whatever reason */ #ifndef SYSCONFDIR #error "SYSCONFDIR not defined" #endif #define FREE(pointer) do { \ if (pointer != NULL) { \ free(pointer); \ pointer = NULL; \ } \ } \ while (0) #include "xcb.h" #include "libi3.h" enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME; enum { MOD_Mod1, MOD_Mod4 } modifier = MOD_Mod4; static char *config_path; static uint32_t xcb_numlock_mask; xcb_connection_t *conn; static xcb_get_modifier_mapping_reply_t *modmap_reply; static i3Font font; static i3Font bold_font; static char *socket_path; static xcb_window_t win; static xcb_pixmap_t pixmap; static xcb_gcontext_t pixmap_gc; static xcb_key_symbols_t *symbols; xcb_window_t root; Display *dpy; char *rewrite_binding(const char *bindingline); static void finish(); /* * This function resolves ~ in pathnames. * It may resolve wildcards in the first part of the path, but if no match * or multiple matches are found, it just returns a copy of path as given. * */ static char *resolve_tilde(const char *path) { static glob_t globbuf; char *head, *tail, *result; tail = strchr(path, '/'); head = strndup(path, tail ? tail - path : strlen(path)); int res = glob(head, GLOB_TILDE, NULL, &globbuf); free(head); /* no match, or many wildcard matches are bad */ if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1) result = strdup(path); else if (res != 0) { err(1, "glob() failed"); } else { head = globbuf.gl_pathv[0]; result = calloc(1, strlen(head) + (tail ? strlen(tail) : 0) + 1); strncpy(result, head, strlen(head)); if (tail) strncat(result, tail, strlen(tail)); } globfree(&globbuf); return result; } /* * Handles expose events, that is, draws the window contents. * */ static int handle_expose() { /* re-draw the background */ xcb_rectangle_t border = {0, 0, 300, (15 * font.height) + 8}; xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#000000") }); xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border); xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ font.id }); #define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font.height) + 2, text) if (current_step == STEP_WELCOME) { /* restore font color */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") }); txt(10, 2, "You have not configured i3 yet."); txt(10, 3, "Do you want me to generate ~/.i3/config?"); txt(85, 5, "Yes, generate ~/.i3/config"); txt(85, 7, "No, I will use the defaults"); /* green */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#00FF00") }); txt(25, 5, ""); /* red */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") }); txt(31, 7, ""); } if (current_step == STEP_GENERATE) { xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FFFFFF") }); txt(10, 2, "Please choose either:"); txt(85, 4, "Win as default modifier"); txt(85, 5, "Alt as default modifier"); txt(10, 7, "Afterwards, press"); txt(85, 9, "to write ~/.i3/config"); txt(85, 10, "to abort"); /* the not-selected modifier */ if (modifier == MOD_Mod4) txt(31, 5, ""); else txt(31, 4, ""); /* the selected modifier */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FONT, (uint32_t[]){ bold_font.id }); if (modifier == MOD_Mod4) txt(31, 4, ""); else txt(31, 5, ""); /* green */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND | XCB_GC_FONT, (uint32_t[]) { get_colorpixel("#00FF00"), font.id }); txt(25, 9, ""); /* red */ xcb_change_gc(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#FF0000") }); txt(31, 10, ""); } /* Copy the contents of the pixmap to the real window */ xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500); xcb_flush(conn); return 1; } static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) { printf("Keypress %d, state raw = %d\n", event->detail, event->state); /* Remove the numlock bit, all other bits are modifiers we can bind to */ uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK); /* Only use the lower 8 bits of the state (modifier masks) so that mouse * button masks are filtered out */ state_filtered &= 0xFF; xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, state_filtered); printf("sym = %c (%d)\n", sym, sym); if (sym == XK_Return || sym == XK_KP_Enter) { if (current_step == STEP_WELCOME) { current_step = STEP_GENERATE; /* Set window title */ xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win, A__NET_WM_NAME, A_UTF8_STRING, 8, strlen("i3: generate config"), "i3: generate config"); xcb_flush(conn); } else finish(); } /* cancel any time */ if (sym == XK_Escape) exit(0); /* Check if this is Mod1 or Mod4. The modmap contains Shift, Lock, Control, * Mod1, Mod2, Mod3, Mod4, Mod5 (in that order) */ xcb_keycode_t *modmap = xcb_get_modifier_mapping_keycodes(modmap_reply); /* Mod1? */ int mask = 3; for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) { xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i]; if (code == XCB_NONE) continue; printf("Modifier keycode for Mod1: 0x%02x\n", code); if (code == event->detail) { modifier = MOD_Mod1; printf("This is Mod1!\n"); } } /* Mod4? */ mask = 6; for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) { xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i]; if (code == XCB_NONE) continue; printf("Modifier keycode for Mod4: 0x%02x\n", code); if (code == event->detail) { modifier = MOD_Mod4; printf("This is Mod4!\n"); } } handle_expose(); return 1; } /* * Handle button presses to make clicking on "" and "" work * */ static void handle_button_press(xcb_button_press_event_t* event) { if (current_step != STEP_GENERATE) return; if (event->event_x >= 32 && event->event_x <= 68 && event->event_y >= 45 && event->event_y <= 54) { modifier = MOD_Mod4; handle_expose(); } if (event->event_x >= 32 && event->event_x <= 68 && event->event_y >= 56 && event->event_y <= 70) { modifier = MOD_Mod1; handle_expose(); } return; } /* * Creates the config file and tells i3 to reload. * */ static void finish() { printf("creating \"%s\"...\n", config_path); if (!(dpy = XOpenDisplay(NULL))) errx(1, "Could not connect to X11"); FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r"); if (kc_config == NULL) err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes"); FILE *ks_config = fopen(config_path, "w"); if (ks_config == NULL) err(1, "Could not open output config file \"%s\"", config_path); char *line = NULL; size_t len = 0; #if !defined(__APPLE__) ssize_t read; #endif bool head_of_file = true; /* write a header about auto-generation to the output file */ fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config); fputs("# It will not be overwritten, so edit it as you like.\n", ks_config); fputs("#\n", ks_config); fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config); fputs("# this file and re-run i3-config-wizard(1).\n", ks_config); fputs("#\n", ks_config); #if defined(__APPLE__) while ((line = fgetln(kc_config, &len)) != NULL) { #else while ((read = getline(&line, &len, kc_config)) != -1) { #endif /* skip the warning block at the beginning of the input file */ if (head_of_file && strncmp("# WARNING", line, strlen("# WARNING")) == 0) continue; head_of_file = false; /* Skip leading whitespace */ char *walk = line; while (isspace(*walk) && walk < (line + len)) walk++; /* Set the modifier the user chose */ if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) { if (modifier == MOD_Mod1) fputs("set $mod Mod1\n", ks_config); else fputs("set $mod Mod4\n", ks_config); continue; } /* Check for 'bindcode'. If it’s not a bindcode line, we * just copy it to the output file */ if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) { fputs(line, ks_config); continue; } char *result = rewrite_binding(walk); fputs(result, ks_config); free(result); } /* sync to do our best in order to have the file really stored on disk */ fflush(ks_config); fsync(fileno(ks_config)); free(line); fclose(kc_config); fclose(ks_config); /* tell i3 to reload the config file */ int sockfd = ipc_connect(socket_path); ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload"); close(sockfd); exit(0); } int main(int argc, char *argv[]) { config_path = resolve_tilde("~/.i3/config"); socket_path = getenv("I3SOCK"); char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1"; char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1"; int o, option_index = 0; static struct option long_options[] = { {"socket", required_argument, 0, 's'}, {"version", no_argument, 0, 'v'}, {"limit", required_argument, 0, 'l'}, {"prompt", required_argument, 0, 'P'}, {"prefix", required_argument, 0, 'p'}, {"font", required_argument, 0, 'f'}, {"help", no_argument, 0, 'h'}, {0, 0, 0, 0} }; char *options_string = "s:vh"; while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) { switch (o) { case 's': FREE(socket_path); socket_path = strdup(optarg); break; case 'v': printf("i3-config-wizard " I3_VERSION "\n"); return 0; case 'h': printf("i3-config-wizard " I3_VERSION "\n"); printf("i3-config-wizard [-s ] [-v]\n"); return 0; } } /* Check if the destination config file does not exist but the path is * writable. If not, exit now, this program is not useful in that case. */ struct stat stbuf; if (stat(config_path, &stbuf) == 0) { printf("The config file \"%s\" already exists. Exiting.\n", config_path); return 0; } /* Create ~/.i3 if it does not yet exist */ char *config_dir = resolve_tilde("~/.i3"); if (stat(config_dir, &stbuf) != 0) if (mkdir(config_dir, 0755) == -1) err(1, "mkdir(%s) failed", config_dir); free(config_dir); int fd; if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) { printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno)); return 0; } close(fd); unlink(config_path); if (socket_path == NULL) socket_path = socket_path_from_x11(); if (socket_path == NULL) socket_path = "/tmp/i3-ipc.sock"; int screens; if ((conn = xcb_connect(NULL, &screens)) == NULL || xcb_connection_has_error(conn)) errx(1, "Cannot open display\n"); xcb_get_modifier_mapping_cookie_t modmap_cookie; modmap_cookie = xcb_get_modifier_mapping(conn); symbols = xcb_key_symbols_alloc(conn); /* Place requests for the atoms we need as soon as possible */ #define xmacro(atom) \ xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom); #include "atoms.xmacro" #undef xmacro xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens); root = root_screen->root; if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL))) errx(EXIT_FAILURE, "Could not get modifier mapping\n"); xcb_numlock_mask = get_mod_mask_for(XCB_NUM_LOCK, symbols, modmap_reply); font = load_font(pattern, true); bold_font = load_font(patternbold, true); /* Open an input window */ win = xcb_generate_id(conn); xcb_create_window( conn, XCB_COPY_FROM_PARENT, win, /* the window id */ root, /* parent == root */ 490, 297, 300, 205, /* dimensions */ 0, /* X11 border = 0, we draw our own */ XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */ XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK, (uint32_t[]){ 0, /* back pixel: black */ XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS }); /* Map the window (make it visible) */ xcb_map_window(conn, win); /* Setup NetWM atoms */ #define xmacro(name) \ do { \ xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \ if (!reply) \ errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \ \ A_ ## name = reply->atom; \ free(reply); \ } while (0); #include "atoms.xmacro" #undef xmacro /* Set dock mode */ xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win, A__NET_WM_WINDOW_TYPE, A_ATOM, 32, 1, (unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG); /* Set window title */ xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win, A__NET_WM_NAME, A_UTF8_STRING, 8, strlen("i3: first configuration"), "i3: first configuration"); /* Create pixmap */ pixmap = xcb_generate_id(conn); pixmap_gc = xcb_generate_id(conn); xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500); xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0); /* Grab the keyboard to get all input */ xcb_flush(conn); /* Try (repeatedly, if necessary) to grab the keyboard. We might not * get the keyboard at the first attempt because of the keybinding * still being active when started via a wm’s keybinding. */ xcb_grab_keyboard_cookie_t cookie; xcb_grab_keyboard_reply_t *reply = NULL; int count = 0; while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) { cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); reply = xcb_grab_keyboard_reply(conn, cookie, NULL); usleep(1000); } if (reply->status != XCB_GRAB_STATUS_SUCCESS) { fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status); exit(-1); } xcb_flush(conn); xcb_generic_event_t *event; while ((event = xcb_wait_for_event(conn)) != NULL) { if (event->response_type == 0) { fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence); continue; } /* Strip off the highest bit (set if the event is generated) */ int type = (event->response_type & 0x7F); switch (type) { case XCB_KEY_PRESS: handle_key_press(NULL, conn, (xcb_key_press_event_t*)event); break; /* TODO: handle mappingnotify */ case XCB_BUTTON_PRESS: handle_button_press((xcb_button_press_event_t*)event); break; case XCB_EXPOSE: handle_expose(); break; } free(event); } return 0; }