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00015 #include <stdio.h>
00016 #include <string.h>
00017 #include <sys/stat.h>
00018 #include <sys/types.h>
00019 #include <stdlib.h>
00020 #include <glob.h>
00021 #include <wordexp.h>
00022 #include <unistd.h>
00023
00024
00025 #include <X11/Xlib.h>
00026
00027 #include <xcb/xcb_keysyms.h>
00028
00029 #include "i3.h"
00030 #include "util.h"
00031 #include "config.h"
00032 #include "xcb.h"
00033 #include "table.h"
00034 #include "workspace.h"
00035 #include "log.h"
00036
00037 Config config;
00038 struct modes_head modes;
00039
00040
00041
00042
00043
00044 char *glob_path(const char *path) {
00045 static glob_t globbuf;
00046 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
00047 die("glob() failed");
00048 char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
00049 globfree(&globbuf);
00050
00051
00052
00053 if (strcmp(result, path) == 0) {
00054 wordexp_t we;
00055 wordexp(path, &we, WRDE_NOCMD);
00056 if (we.we_wordc > 0) {
00057 free(result);
00058 result = sstrdup(we.we_wordv[0]);
00059 }
00060 wordfree(&we);
00061 }
00062
00063 return result;
00064 }
00065
00066
00067
00068
00069
00070 bool path_exists(const char *path) {
00071 struct stat buf;
00072 return (stat(path, &buf) == 0);
00073 }
00074
00080 void ungrab_all_keys(xcb_connection_t *conn) {
00081 DLOG("Ungrabbing all keys\n");
00082 xcb_ungrab_key(conn, XCB_GRAB_ANY, root, XCB_BUTTON_MASK_ANY);
00083 }
00084
00085 static void grab_keycode_for_binding(xcb_connection_t *conn, Binding *bind, uint32_t keycode) {
00086 DLOG("Grabbing %d\n", keycode);
00087
00088 #define GRAB_KEY(modifier) \
00089 do { \
00090 xcb_grab_key(conn, 0, root, modifier, keycode, \
00091 XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); \
00092 } while (0)
00093 int mods = bind->mods;
00094 if ((bind->mods & BIND_MODE_SWITCH) != 0) {
00095 mods &= ~BIND_MODE_SWITCH;
00096 if (mods == 0)
00097 mods = XCB_MOD_MASK_ANY;
00098 }
00099 GRAB_KEY(mods);
00100 GRAB_KEY(mods | xcb_numlock_mask);
00101 GRAB_KEY(mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
00102 }
00103
00104
00105
00106
00107
00108
00109 Binding *get_binding(uint16_t modifiers, xcb_keycode_t keycode) {
00110 Binding *bind;
00111
00112 TAILQ_FOREACH(bind, bindings, bindings) {
00113
00114 if (bind->mods != modifiers)
00115 continue;
00116
00117
00118
00119 if (bind->symbol != NULL) {
00120 if (memmem(bind->translated_to,
00121 bind->number_keycodes * sizeof(xcb_keycode_t),
00122 &keycode, sizeof(xcb_keycode_t)) != NULL)
00123 break;
00124 } else {
00125
00126 if (bind->keycode == keycode)
00127 break;
00128 }
00129 }
00130
00131 return (bind == TAILQ_END(bindings) ? NULL : bind);
00132 }
00133
00134
00135
00136
00137
00138 void translate_keysyms() {
00139 Binding *bind;
00140 TAILQ_FOREACH(bind, bindings, bindings) {
00141 if (bind->keycode > 0)
00142 continue;
00143
00144
00145 xcb_keysym_t keysym = XStringToKeysym(bind->symbol);
00146 if (keysym == NoSymbol) {
00147 ELOG("Could not translate string to key symbol: \"%s\"\n", bind->symbol);
00148 continue;
00149 }
00150
00151 #ifdef OLD_XCB_KEYSYMS_API
00152 bind->number_keycodes = 1;
00153 xcb_keycode_t code = xcb_key_symbols_get_keycode(keysyms, keysym);
00154 DLOG("Translated symbol \"%s\" to 1 keycode (%d)\n", bind->symbol, code);
00155 grab_keycode_for_binding(global_conn, bind, code);
00156 bind->translated_to = smalloc(sizeof(xcb_keycode_t));
00157 memcpy(bind->translated_to, &code, sizeof(xcb_keycode_t));
00158 #else
00159 uint32_t last_keycode = 0;
00160 xcb_keycode_t *keycodes = xcb_key_symbols_get_keycode(keysyms, keysym);
00161 if (keycodes == NULL) {
00162 DLOG("Could not translate symbol \"%s\"\n", bind->symbol);
00163 continue;
00164 }
00165
00166 bind->number_keycodes = 0;
00167
00168 for (xcb_keycode_t *walk = keycodes; *walk != 0; walk++) {
00169
00170
00171 if (last_keycode == *walk)
00172 continue;
00173 last_keycode = *walk;
00174 bind->number_keycodes++;
00175 }
00176 DLOG("Translated symbol \"%s\" to %d keycode\n", bind->symbol, bind->number_keycodes);
00177 bind->translated_to = smalloc(bind->number_keycodes * sizeof(xcb_keycode_t));
00178 memcpy(bind->translated_to, keycodes, bind->number_keycodes * sizeof(xcb_keycode_t));
00179 free(keycodes);
00180 #endif
00181 }
00182 }
00183
00184
00185
00186
00187
00188 void grab_all_keys(xcb_connection_t *conn, bool bind_mode_switch) {
00189 Binding *bind;
00190 TAILQ_FOREACH(bind, bindings, bindings) {
00191 if ((bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) == 0) ||
00192 (!bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) != 0))
00193 continue;
00194
00195
00196 if (bind->keycode > 0) {
00197 grab_keycode_for_binding(conn, bind, bind->keycode);
00198 continue;
00199 }
00200
00201 xcb_keycode_t *walk = bind->translated_to;
00202 for (int i = 0; i < bind->number_keycodes; i++)
00203 grab_keycode_for_binding(conn, bind, *walk);
00204 }
00205 }
00206
00207
00208
00209
00210
00211 void switch_mode(xcb_connection_t *conn, const char *new_mode) {
00212 struct Mode *mode;
00213
00214 LOG("Switching to mode %s\n", new_mode);
00215
00216 SLIST_FOREACH(mode, &modes, modes) {
00217 if (strcasecmp(mode->name, new_mode) != 0)
00218 continue;
00219
00220 ungrab_all_keys(conn);
00221 bindings = mode->bindings;
00222 translate_keysyms();
00223 grab_all_keys(conn, false);
00224 return;
00225 }
00226
00227 ELOG("ERROR: Mode not found\n");
00228 }
00229
00230
00231
00232
00233
00234
00235 static char *get_config_path() {
00236
00237 char *xdg_config_home, *xdg_config_dirs, *config_path;
00238
00239 if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
00240 xdg_config_home = "~/.config";
00241
00242 xdg_config_home = glob_path(xdg_config_home);
00243 if (asprintf(&config_path, "%s/i3/config", xdg_config_home) == -1)
00244 die("asprintf() failed");
00245 free(xdg_config_home);
00246
00247 if (path_exists(config_path))
00248 return config_path;
00249 free(config_path);
00250
00251
00252 if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
00253 xdg_config_dirs = "/etc/xdg";
00254
00255 char *buf = strdup(xdg_config_dirs);
00256 char *tok = strtok(buf, ":");
00257 while (tok != NULL) {
00258 tok = glob_path(tok);
00259 if (asprintf(&config_path, "%s/i3/config", tok) == -1)
00260 die("asprintf() failed");
00261 free(tok);
00262 if (path_exists(config_path)) {
00263 free(buf);
00264 return config_path;
00265 }
00266 free(config_path);
00267 tok = strtok(NULL, ":");
00268 }
00269 free(buf);
00270
00271
00272 config_path = glob_path("~/.i3/config");
00273 if (path_exists(config_path))
00274 return config_path;
00275
00276 config_path = strdup("/etc/i3/config");
00277 if (!path_exists(config_path))
00278 die("Neither $XDG_CONFIG_HOME/i3/config, nor "
00279 "$XDG_CONFIG_DIRS/i3/config, nor ~/.i3/config nor "
00280 "/etc/i3/config exist.");
00281
00282 return config_path;
00283 }
00284
00285
00286
00287
00288
00289
00290
00291 static void parse_configuration(const char *override_configpath) {
00292 if (override_configpath != NULL) {
00293 parse_file(override_configpath);
00294 return;
00295 }
00296
00297 char *path = get_config_path();
00298 DLOG("Parsing configfile %s\n", path);
00299 parse_file(path);
00300 free(path);
00301 }
00302
00303
00304
00305
00306
00307 void load_configuration(xcb_connection_t *conn, const char *override_configpath, bool reload) {
00308 if (reload) {
00309
00310 ungrab_all_keys(conn);
00311
00312 struct Mode *mode;
00313 Binding *bind;
00314 while (!SLIST_EMPTY(&modes)) {
00315 mode = SLIST_FIRST(&modes);
00316 FREE(mode->name);
00317
00318
00319 bindings = mode->bindings;
00320 while (!TAILQ_EMPTY(bindings)) {
00321 bind = TAILQ_FIRST(bindings);
00322 TAILQ_REMOVE(bindings, bind, bindings);
00323 FREE(bind->translated_to);
00324 FREE(bind->command);
00325 FREE(bind);
00326 }
00327 FREE(bindings);
00328 SLIST_REMOVE(&modes, mode, Mode, modes);
00329 }
00330
00331 struct Assignment *assign;
00332 while (!TAILQ_EMPTY(&assignments)) {
00333 assign = TAILQ_FIRST(&assignments);
00334 FREE(assign->windowclass_title);
00335 TAILQ_REMOVE(&assignments, assign, assignments);
00336 FREE(assign);
00337 }
00338
00339
00340 Workspace *ws;
00341 TAILQ_FOREACH(ws, workspaces, workspaces)
00342 workspace_set_name(ws, NULL);
00343 }
00344
00345 SLIST_INIT(&modes);
00346
00347 struct Mode *default_mode = scalloc(sizeof(struct Mode));
00348 default_mode->name = sstrdup("default");
00349 default_mode->bindings = scalloc(sizeof(struct bindings_head));
00350 TAILQ_INIT(default_mode->bindings);
00351 SLIST_INSERT_HEAD(&modes, default_mode, modes);
00352
00353 bindings = default_mode->bindings;
00354
00355 #define REQUIRED_OPTION(name) \
00356 if (config.name == NULL) \
00357 die("You did not specify required configuration option " #name "\n");
00358
00359
00360 memset(&config, 0, sizeof(config));
00361
00362
00363 #define INIT_COLOR(x, cborder, cbackground, ctext) \
00364 do { \
00365 x.border = get_colorpixel(conn, cborder); \
00366 x.background = get_colorpixel(conn, cbackground); \
00367 x.text = get_colorpixel(conn, ctext); \
00368 } while (0)
00369
00370 INIT_COLOR(config.client.focused, "#4c7899", "#285577", "#ffffff");
00371 INIT_COLOR(config.client.focused_inactive, "#333333", "#5f676a", "#ffffff");
00372 INIT_COLOR(config.client.unfocused, "#333333", "#222222", "#888888");
00373 INIT_COLOR(config.client.urgent, "#2f343a", "#900000", "#ffffff");
00374 INIT_COLOR(config.bar.focused, "#4c7899", "#285577", "#ffffff");
00375 INIT_COLOR(config.bar.unfocused, "#333333", "#222222", "#888888");
00376 INIT_COLOR(config.bar.urgent, "#2f343a", "#900000", "#ffffff");
00377
00378 parse_configuration(override_configpath);
00379
00380 if (reload) {
00381 translate_keysyms();
00382 grab_all_keys(conn, false);
00383 }
00384
00385 REQUIRED_OPTION(font);
00386
00387
00388 Workspace *ws;
00389 TAILQ_FOREACH(ws, workspaces, workspaces) {
00390 if (ws->name != NULL) {
00391
00392
00393 if (ws->text_width == 0)
00394 ws->text_width = predict_text_width(global_conn,
00395 config.font, ws->name, ws->name_len);
00396 continue;
00397 }
00398
00399 workspace_set_name(ws, NULL);
00400 }
00401 }