620 lines
26 KiB
C
620 lines
26 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <glob.h>
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/* We need Xlib for XStringToKeysym */
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#include <X11/Xlib.h>
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#include <xcb/xcb_keysyms.h>
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#include "i3.h"
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#include "util.h"
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#include "config.h"
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#include "xcb.h"
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#include "table.h"
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#include "workspace.h"
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/* prototype for src/cfgparse.y, will be cleaned up as soon as we completely
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* switched to the new scanner/parser. */
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void parse_file(const char *f);
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Config config;
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struct modes_head modes;
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bool config_use_lexer = false;
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/*
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* This function resolves ~ in pathnames.
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*
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*/
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static char *glob_path(const char *path) {
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static glob_t globbuf;
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if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
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die("glob() failed");
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char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
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globfree(&globbuf);
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return result;
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}
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/*
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* This function does a very simple replacement of each instance of key with value.
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*
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*/
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static void replace_variable(char *buffer, const char *key, const char *value) {
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char *pos;
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/* To prevent endless recursions when the user makes an error configuring,
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* we stop after 100 replacements. That should be vastly more than enough. */
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int c = 0;
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while ((pos = strcasestr(buffer, key)) != NULL && c++ < 100) {
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char *rest = pos + strlen(key);
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*pos = '\0';
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char *replaced;
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asprintf(&replaced, "%s%s%s", buffer, value, rest);
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/* Hm, this is a bit ugly, but sizeof(buffer) = 4, as it’s just a pointer.
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* So we need to hard-code the dimensions here. */
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strncpy(buffer, replaced, 1026);
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free(replaced);
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}
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}
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/**
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* Ungrabs all keys, to be called before re-grabbing the keys because of a
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* mapping_notify event or a configuration file reload
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*
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*/
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void ungrab_all_keys(xcb_connection_t *conn) {
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LOG("Ungrabbing all keys\n");
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xcb_ungrab_key(conn, XCB_GRAB_ANY, root, XCB_BUTTON_MASK_ANY);
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}
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static void grab_keycode_for_binding(xcb_connection_t *conn, Binding *bind, uint32_t keycode) {
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LOG("Grabbing %d\n", keycode);
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if ((bind->mods & BIND_MODE_SWITCH) != 0)
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xcb_grab_key(conn, 0, root, 0, keycode,
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_SYNC);
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else {
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/* Grab the key in all combinations */
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#define GRAB_KEY(modifier) xcb_grab_key(conn, 0, root, modifier, keycode, \
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC)
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GRAB_KEY(bind->mods);
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GRAB_KEY(bind->mods | xcb_numlock_mask);
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GRAB_KEY(bind->mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
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}
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}
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/*
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* Grab the bound keys (tell X to send us keypress events for those keycodes)
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*
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*/
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void grab_all_keys(xcb_connection_t *conn) {
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Binding *bind;
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TAILQ_FOREACH(bind, bindings, bindings) {
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/* The easy case: the user specified a keycode directly. */
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if (bind->keycode > 0) {
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grab_keycode_for_binding(conn, bind, bind->keycode);
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continue;
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}
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/* We need to translate the symbol to a keycode */
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xcb_keysym_t keysym = XStringToKeysym(bind->symbol);
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if (keysym == NoSymbol) {
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LOG("Could not translate string to key symbol: \"%s\"\n", bind->symbol);
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continue;
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}
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#ifdef OLD_XCB_KEYSYMS_API
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bind->number_keycodes = 1;
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xcb_keycode_t code = xcb_key_symbols_get_keycode(keysyms, keysym);
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LOG("Translated symbol \"%s\" to 1 keycode (%d)\n", bind->symbol, code);
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grab_keycode_for_binding(conn, bind, code);
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bind->translated_to = smalloc(sizeof(xcb_keycode_t));
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memcpy(bind->translated_to, &code, sizeof(xcb_keycode_t));
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#else
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uint32_t last_keycode = 0;
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xcb_keycode_t *keycodes = xcb_key_symbols_get_keycode(keysyms, keysym);
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if (keycodes == NULL) {
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LOG("Could not translate symbol \"%s\"\n", bind->symbol);
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continue;
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}
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bind->number_keycodes = 0;
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for (xcb_keycode_t *walk = keycodes; *walk != 0; walk++) {
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/* We hope duplicate keycodes will be returned in order
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* and skip them */
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if (last_keycode == *walk)
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continue;
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grab_keycode_for_binding(conn, bind, *walk);
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last_keycode = *walk;
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bind->number_keycodes++;
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}
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LOG("Translated symbol \"%s\" to %d keycode\n", bind->symbol, bind->number_keycodes);
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bind->translated_to = smalloc(bind->number_keycodes * sizeof(xcb_keycode_t));
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memcpy(bind->translated_to, keycodes, bind->number_keycodes * sizeof(xcb_keycode_t));
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free(keycodes);
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#endif
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}
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}
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/*
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* Switches the key bindings to the given mode, if the mode exists
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*
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*/
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void switch_mode(xcb_connection_t *conn, const char *new_mode) {
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struct Mode *mode;
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LOG("Switching to mode %s\n", new_mode);
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SLIST_FOREACH(mode, &modes, modes) {
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if (strcasecmp(mode->name, new_mode) != 0)
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continue;
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ungrab_all_keys(conn);
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bindings = mode->bindings;
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grab_all_keys(conn);
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return;
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}
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LOG("ERROR: Mode not found\n");
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}
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/*
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* Reads the configuration from ~/.i3/config or /etc/i3/config if not found.
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*
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* If you specify override_configpath, only this path is used to look for a
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* configuration file.
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*
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*/
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void load_configuration(xcb_connection_t *conn, const char *override_configpath, bool reload) {
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if (reload) {
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/* First ungrab the keys */
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ungrab_all_keys(conn);
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struct Mode *mode;
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Binding *bind;
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while (!SLIST_EMPTY(&modes)) {
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mode = SLIST_FIRST(&modes);
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FREE(mode->name);
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/* Clear the old binding list */
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bindings = mode->bindings;
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while (!TAILQ_EMPTY(bindings)) {
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bind = TAILQ_FIRST(bindings);
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TAILQ_REMOVE(bindings, bind, bindings);
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FREE(bind->translated_to);
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FREE(bind->command);
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FREE(bind);
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}
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FREE(bindings);
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SLIST_REMOVE(&modes, mode, Mode, modes);
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}
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struct Assignment *assign;
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while (!TAILQ_EMPTY(&assignments)) {
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assign = TAILQ_FIRST(&assignments);
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FREE(assign->windowclass_title);
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TAILQ_REMOVE(&assignments, assign, assignments);
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FREE(assign);
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}
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}
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SLIST_INIT(&modes);
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struct Mode *default_mode = scalloc(sizeof(struct Mode));
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default_mode->name = sstrdup("default");
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default_mode->bindings = scalloc(sizeof(struct bindings_head));
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TAILQ_INIT(default_mode->bindings);
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SLIST_INSERT_HEAD(&modes, default_mode, modes);
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bindings = default_mode->bindings;
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SLIST_HEAD(variables_head, Variable) variables;
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#define OPTION_STRING(name) \
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if (strcasecmp(key, #name) == 0) { \
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config.name = sstrdup(value); \
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continue; \
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}
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#define REQUIRED_OPTION(name) \
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if (config.name == NULL) \
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die("You did not specify required configuration option " #name "\n");
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#define OPTION_COLORTRIPLE(opt, name) \
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if (strcasecmp(key, opt) == 0) { \
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char border[8], background[8], text[8]; \
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memset(border, 0, sizeof(border)); \
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memset(background, 0, sizeof(background)); \
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memset(text, 0, sizeof(text)); \
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border[0] = background[0] = text[0] = '#'; \
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if (sscanf(value, "#%06[0-9a-fA-F] #%06[0-9a-fA-F] #%06[0-9a-fA-F]", \
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border + 1, background + 1, text + 1) != 3 || \
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strlen(border) != 7 || \
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strlen(background) != 7 || \
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strlen(text) != 7) \
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die("invalid color code line: %s\n", value); \
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config.name.border = get_colorpixel(conn, border); \
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config.name.background = get_colorpixel(conn, background); \
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config.name.text = get_colorpixel(conn, text); \
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continue; \
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}
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/* Clear the old config or initialize the data structure */
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memset(&config, 0, sizeof(config));
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SLIST_INIT(&variables);
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/* Initialize default colors */
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config.client.focused.border = get_colorpixel(conn, "#4c7899");
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config.client.focused.background = get_colorpixel(conn, "#285577");
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config.client.focused.text = get_colorpixel(conn, "#ffffff");
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config.client.focused_inactive.border = get_colorpixel(conn, "#333333");
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config.client.focused_inactive.background = get_colorpixel(conn, "#5f676a");
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config.client.focused_inactive.text = get_colorpixel(conn, "#ffffff");
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config.client.unfocused.border = get_colorpixel(conn, "#333333");
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config.client.unfocused.background = get_colorpixel(conn, "#222222");
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config.client.unfocused.text = get_colorpixel(conn, "#888888");
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config.client.urgent.border = get_colorpixel(conn, "#2f343a");
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config.client.urgent.background = get_colorpixel(conn, "#900000");
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config.client.urgent.text = get_colorpixel(conn, "#ffffff");
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config.bar.focused.border = get_colorpixel(conn, "#4c7899");
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config.bar.focused.background = get_colorpixel(conn, "#285577");
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config.bar.focused.text = get_colorpixel(conn, "#ffffff");
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config.bar.unfocused.border = get_colorpixel(conn, "#333333");
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config.bar.unfocused.background = get_colorpixel(conn, "#222222");
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config.bar.unfocused.text = get_colorpixel(conn, "#888888");
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config.bar.urgent.border = get_colorpixel(conn, "#2f343a");
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config.bar.urgent.background = get_colorpixel(conn, "#900000");
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config.bar.urgent.text = get_colorpixel(conn, "#ffffff");
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if (config_use_lexer) {
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/* Yes, this will be cleaned up soon. */
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if (override_configpath != NULL) {
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parse_file(override_configpath);
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} else {
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FILE *handle;
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char *globbed = glob_path("~/.i3/config");
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if ((handle = fopen(globbed, "r")) == NULL) {
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if ((handle = fopen("/etc/i3/config", "r")) == NULL) {
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die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
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} else {
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parse_file("/etc/i3/config");
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}
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} else {
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parse_file(globbed);
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}
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}
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if (reload)
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grab_all_keys(conn);
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} else {
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FILE *handle;
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if (override_configpath != NULL) {
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if ((handle = fopen(override_configpath, "r")) == NULL)
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die("Could not open configfile \"%s\".\n", override_configpath);
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} else {
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/* We first check for ~/.i3/config, then for /etc/i3/config */
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char *globbed = glob_path("~/.i3/config");
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if ((handle = fopen(globbed, "r")) == NULL)
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if ((handle = fopen("/etc/i3/config", "r")) == NULL)
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die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
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free(globbed);
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}
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char key[512], value[512], buffer[1026];
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while (!feof(handle)) {
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if (fgets(buffer, 1024, handle) == NULL) {
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/* fgets returns NULL on EOF and on error, so see which one it is. */
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if (feof(handle))
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break;
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die("Could not read configuration file\n");
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}
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if (config.terminal != NULL)
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replace_variable(buffer, "$terminal", config.terminal);
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/* Replace all custom variables */
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struct Variable *current;
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SLIST_FOREACH(current, &variables, variables)
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replace_variable(buffer, current->key, current->value);
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/* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
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if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
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key[0] == '#' || strlen(key) < 3)
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continue;
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OPTION_STRING(terminal);
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OPTION_STRING(font);
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/* Colors */
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OPTION_COLORTRIPLE("client.focused", client.focused);
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OPTION_COLORTRIPLE("client.focused_inactive", client.focused_inactive);
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OPTION_COLORTRIPLE("client.unfocused", client.unfocused);
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OPTION_COLORTRIPLE("client.urgent", client.urgent);
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OPTION_COLORTRIPLE("bar.focused", bar.focused);
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OPTION_COLORTRIPLE("bar.unfocused", bar.unfocused);
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OPTION_COLORTRIPLE("bar.urgent", bar.urgent);
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/* exec-lines (autostart) */
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if (strcasecmp(key, "exec") == 0) {
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struct Autostart *new = smalloc(sizeof(struct Autostart));
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new->command = sstrdup(value);
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TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
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continue;
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}
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/* key bindings */
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if (strcasecmp(key, "bind") == 0 || strcasecmp(key, "bindsym") == 0) {
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#define CHECK_MODIFIER(name) \
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if (strncasecmp(walk, #name, strlen(#name)) == 0) { \
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modifiers |= BIND_##name; \
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walk += strlen(#name) + 1; \
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continue; \
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}
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char *walk = value, *rest;
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uint32_t modifiers = 0;
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while (*walk != '\0') {
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/* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
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CHECK_MODIFIER(SHIFT);
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CHECK_MODIFIER(CONTROL);
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CHECK_MODIFIER(MODE_SWITCH);
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CHECK_MODIFIER(MOD1);
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CHECK_MODIFIER(MOD2);
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CHECK_MODIFIER(MOD3);
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CHECK_MODIFIER(MOD4);
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CHECK_MODIFIER(MOD5);
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/* No modifier found? Then we’re done with this step */
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break;
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}
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Binding *new = scalloc(sizeof(Binding));
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/* Now check for the keycode or copy the symbol */
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if (strcasecmp(key, "bind") == 0) {
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int keycode = strtol(walk, &rest, 10);
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if (!rest || *rest != ' ')
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die("Invalid binding (keycode)\n");
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new->keycode = keycode;
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} else {
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rest = walk;
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char *sym = rest;
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while (*rest != '\0' && *rest != ' ')
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rest++;
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if (*rest != ' ')
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die("Invalid binding (keysym)\n");
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#if defined(__OpenBSD__)
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size_t len = strlen(sym);
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if (len > (rest - sym))
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len = (rest - sym);
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new->symbol = smalloc(len + 1);
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memcpy(new->symbol, sym, len+1);
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new->symbol[len]='\0';
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#else
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new->symbol = strndup(sym, (rest - sym));
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#endif
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}
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rest++;
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LOG("keycode = %d, symbol = %s, modifiers = %d, command = *%s*\n", new->keycode, new->symbol, modifiers, rest);
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new->mods = modifiers;
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new->command = sstrdup(rest);
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TAILQ_INSERT_TAIL(bindings, new, bindings);
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continue;
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}
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if (strcasecmp(key, "floating_modifier") == 0) {
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char *walk = value;
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uint32_t modifiers = 0;
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while (*walk != '\0') {
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/* Need to check for Mod1-5, Ctrl, Shift, Mode_switch */
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CHECK_MODIFIER(SHIFT);
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CHECK_MODIFIER(CONTROL);
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CHECK_MODIFIER(MODE_SWITCH);
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CHECK_MODIFIER(MOD1);
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CHECK_MODIFIER(MOD2);
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CHECK_MODIFIER(MOD3);
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CHECK_MODIFIER(MOD4);
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CHECK_MODIFIER(MOD5);
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/* No modifier found? Then we’re done with this step */
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break;
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}
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LOG("Floating modifiers = %d\n", modifiers);
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config.floating_modifier = modifiers;
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continue;
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}
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/* workspace "workspace number" [screen <screen>] ["name of the workspace"]
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* with screen := <number> | <position>, e.g. screen 1280 or screen 1 */
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if (strcasecmp(key, "name") == 0 || strcasecmp(key, "workspace") == 0) {
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LOG("workspace: %s\n",value);
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char *ws_str = sstrdup(value);
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char *end = strchr(ws_str, ' ');
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if (end == NULL)
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die("Malformed name, couln't find terminating space\n");
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*end = '\0';
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/* Strip trailing whitespace */
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while (strlen(value) > 0 && value[strlen(value)-1] == ' ')
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value[strlen(value)-1] = '\0';
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int ws_num = atoi(ws_str);
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if (ws_num < 1 || ws_num > 10)
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die("Malformed name, invalid workspace number\n");
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/* find the name */
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char *name = value;
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name += strlen(ws_str) + 1;
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if (strncasecmp(name, "screen ", strlen("screen ")) == 0) {
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char *screen = strdup(name + strlen("screen "));
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if ((end = strchr(screen, ' ')) != NULL)
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*end = '\0';
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LOG("Setting preferred screen for workspace %d to \"%s\"\n", ws_num, screen);
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workspace_get(ws_num-1)->preferred_screen = screen;
|
||
|
||
name += strlen("screen ") + strlen(screen);
|
||
}
|
||
|
||
/* Strip leading whitespace */
|
||
while (*name != '\0' && *name == ' ')
|
||
name++;
|
||
|
||
LOG("rest to parse = %s\n", name);
|
||
|
||
if (name == '\0') {
|
||
free(ws_str);
|
||
continue;
|
||
}
|
||
|
||
LOG("setting name to \"%s\"\n", name);
|
||
|
||
if (*name != '\0')
|
||
workspace_set_name(workspace_get(ws_num - 1), name);
|
||
free(ws_str);
|
||
continue;
|
||
}
|
||
|
||
/* assign window class[/window title] → workspace */
|
||
if (strcasecmp(key, "assign") == 0) {
|
||
LOG("assign: \"%s\"\n", value);
|
||
char *class_title;
|
||
char *target;
|
||
char *end;
|
||
|
||
/* If the window class/title is quoted we skip quotes */
|
||
if (value[0] == '"') {
|
||
class_title = sstrdup(value+1);
|
||
end = strchr(class_title, '"');
|
||
} else {
|
||
class_title = sstrdup(value);
|
||
/* If it is not quoted, we terminate it at the first space */
|
||
end = strchr(class_title, ' ');
|
||
}
|
||
if (end == NULL)
|
||
die("Malformed assignment, couldn't find terminating quote\n");
|
||
*end = '\0';
|
||
|
||
/* Strip trailing whitespace */
|
||
while (strlen(value) > 0 && value[strlen(value)-1] == ' ')
|
||
value[strlen(value)-1] = '\0';
|
||
|
||
/* The target is the last argument separated by a space */
|
||
if ((target = strrchr(value, ' ')) == NULL)
|
||
die("Malformed assignment, couldn't find target (\"%s\")\n", value);
|
||
target++;
|
||
|
||
if (strchr(target, '~') == NULL && (atoi(target) < 1 || atoi(target) > 10))
|
||
die("Malformed assignment, invalid workspace number\n");
|
||
|
||
LOG("assignment parsed: \"%s\" to \"%s\"\n", class_title, target);
|
||
|
||
struct Assignment *new = scalloc(sizeof(struct Assignment));
|
||
new->windowclass_title = class_title;
|
||
if (strchr(target, '~') != NULL)
|
||
new->floating = ASSIGN_FLOATING_ONLY;
|
||
|
||
while (*target == '~')
|
||
target++;
|
||
|
||
if (atoi(target) >= 1) {
|
||
if (new->floating == ASSIGN_FLOATING_ONLY)
|
||
new->floating = ASSIGN_FLOATING;
|
||
new->workspace = atoi(target);
|
||
}
|
||
TAILQ_INSERT_TAIL(&assignments, new, assignments);
|
||
|
||
LOG("Assignment loaded: \"%s\":\n", class_title);
|
||
if (new->floating != ASSIGN_FLOATING_ONLY)
|
||
LOG(" to workspace %d\n", new->workspace);
|
||
|
||
if (new->floating != ASSIGN_FLOATING_NO)
|
||
LOG(" will be floating\n");
|
||
|
||
continue;
|
||
}
|
||
|
||
/* set a custom variable */
|
||
if (strcasecmp(key, "set") == 0) {
|
||
if (value[0] != '$')
|
||
die("Malformed variable assignment, name has to start with $\n");
|
||
|
||
/* get key/value for this variable */
|
||
char *v_key = value, *v_value;
|
||
if ((v_value = strstr(value, " ")) == NULL)
|
||
die("Malformed variable assignment, need a value\n");
|
||
|
||
*(v_value++) = '\0';
|
||
|
||
struct Variable *new = scalloc(sizeof(struct Variable));
|
||
new->key = sstrdup(v_key);
|
||
new->value = sstrdup(v_value);
|
||
SLIST_INSERT_HEAD(&variables, new, variables);
|
||
LOG("Got new variable %s = %s\n", v_key, v_value);
|
||
continue;
|
||
}
|
||
|
||
if (strcasecmp(key, "ipc-socket") == 0) {
|
||
config.ipc_socket_path = sstrdup(value);
|
||
continue;
|
||
}
|
||
|
||
die("Unknown configfile option: %s\n", key);
|
||
}
|
||
/* now grab all keys again */
|
||
if (reload)
|
||
grab_all_keys(conn);
|
||
fclose(handle);
|
||
|
||
while (!SLIST_EMPTY(&variables)) {
|
||
struct Variable *v = SLIST_FIRST(&variables);
|
||
SLIST_REMOVE_HEAD(&variables, variables);
|
||
free(v->key);
|
||
free(v->value);
|
||
free(v);
|
||
}
|
||
}
|
||
|
||
REQUIRED_OPTION(terminal);
|
||
REQUIRED_OPTION(font);
|
||
|
||
/* Set an empty name for every workspace which got no name */
|
||
Workspace *ws;
|
||
TAILQ_FOREACH(ws, workspaces, workspaces) {
|
||
if (ws->name != NULL) {
|
||
/* If the font was not specified when the workspace name
|
||
* was loaded, we need to predict the text width now */
|
||
if (ws->text_width == 0)
|
||
ws->text_width = predict_text_width(global_conn,
|
||
config.font, ws->name, ws->name_len);
|
||
continue;
|
||
}
|
||
|
||
workspace_set_name(ws, NULL);
|
||
}
|
||
|
||
return;
|
||
}
|