wlroots/rootston/config.c

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18 KiB
C
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#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <assert.h>
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#include <getopt.h>
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#include <limits.h>
#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <sys/param.h>
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#include <unistd.h>
#include <wlr/config.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/util/log.h>
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#include "rootston/config.h"
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#include "rootston/ini.h"
#include "rootston/input.h"
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#include "rootston/keyboard.h"
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static void usage(const char *name, int ret) {
fprintf(stderr,
"usage: %s [-C <FILE>] [-E <COMMAND>]\n"
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"\n"
" -C <FILE> Path to the configuration file\n"
" (default: rootston.ini).\n"
" See `rootston.ini.example` for config\n"
" file documentation.\n"
" -E <COMMAND> Command that will be ran at startup.\n"
" -D Enable damage tracking debugging.\n"
" -l <LEVEL> Set log verbosity, where,\n"
" 0:SILENT, 1:ERROR, 2:INFO, 3+:DEBUG\n"
" (default: DEBUG)\n",
name);
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exit(ret);
}
static struct wlr_box *parse_geometry(const char *str) {
// format: {width}x{height}+{x}+{y}
if (strlen(str) > 255) {
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wlr_log(WLR_ERROR, "cannot parse geometry string, too long");
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return NULL;
}
char *buf = strdup(str);
struct wlr_box *box = calloc(1, sizeof(struct wlr_box));
bool has_width = false;
bool has_height = false;
bool has_x = false;
bool has_y = false;
char *pch = strtok(buf, "x+");
while (pch != NULL) {
errno = 0;
char *endptr;
long val = strtol(pch, &endptr, 0);
if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) ||
(errno != 0 && val == 0)) {
goto invalid_input;
}
if (endptr == pch) {
goto invalid_input;
}
if (!has_width) {
box->width = val;
has_width = true;
} else if (!has_height) {
box->height = val;
has_height = true;
} else if (!has_x) {
box->x = val;
has_x = true;
} else if (!has_y) {
box->y = val;
has_y = true;
} else {
break;
}
pch = strtok(NULL, "x+");
}
if (!has_width || !has_height) {
goto invalid_input;
}
free(buf);
return box;
invalid_input:
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wlr_log(WLR_ERROR, "could not parse geometry string: %s", str);
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free(buf);
free(box);
return NULL;
}
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static uint32_t parse_modifier(const char *symname) {
if (strcmp(symname, "Shift") == 0) {
return WLR_MODIFIER_SHIFT;
} else if (strcmp(symname, "Caps") == 0) {
return WLR_MODIFIER_CAPS;
} else if (strcmp(symname, "Ctrl") == 0) {
return WLR_MODIFIER_CTRL;
} else if (strcmp(symname, "Alt") == 0) {
return WLR_MODIFIER_ALT;
} else if (strcmp(symname, "Mod2") == 0) {
return WLR_MODIFIER_MOD2;
} else if (strcmp(symname, "Mod3") == 0) {
return WLR_MODIFIER_MOD3;
} else if (strcmp(symname, "Logo") == 0) {
return WLR_MODIFIER_LOGO;
} else if (strcmp(symname, "Mod5") == 0) {
return WLR_MODIFIER_MOD5;
} else {
return 0;
}
}
static bool parse_modeline(const char *s, drmModeModeInfo *mode) {
char hsync[16];
char vsync[16];
float fclock;
mode->type = DRM_MODE_TYPE_USERDEF;
if (sscanf(s, "%f %hd %hd %hd %hd %hd %hd %hd %hd %15s %15s",
&fclock,
&mode->hdisplay,
&mode->hsync_start,
&mode->hsync_end,
&mode->htotal,
&mode->vdisplay,
&mode->vsync_start,
&mode->vsync_end,
&mode->vtotal, hsync, vsync) != 11) {
return false;
}
mode->clock = fclock * 1000;
mode->vrefresh = mode->clock * 1000.0 * 1000.0
/ mode->htotal / mode->vtotal;
if (strcasecmp(hsync, "+hsync") == 0) {
mode->flags |= DRM_MODE_FLAG_PHSYNC;
} else if (strcasecmp(hsync, "-hsync") == 0) {
mode->flags |= DRM_MODE_FLAG_NHSYNC;
} else {
return false;
}
if (strcasecmp(vsync, "+vsync") == 0) {
mode->flags |= DRM_MODE_FLAG_PVSYNC;
} else if (strcasecmp(vsync, "-vsync") == 0) {
mode->flags |= DRM_MODE_FLAG_NVSYNC;
} else {
return false;
}
snprintf(mode->name, sizeof(mode->name), "%dx%d@%d",
mode->hdisplay, mode->vdisplay, mode->vrefresh / 1000);
return true;
}
void add_binding_config(struct wl_list *bindings, const char* combination,
const char* command) {
struct roots_binding_config *bc =
calloc(1, sizeof(struct roots_binding_config));
xkb_keysym_t keysyms[ROOTS_KEYBOARD_PRESSED_KEYSYMS_CAP];
char *symnames = strdup(combination);
char *symname = strtok(symnames, "+");
while (symname) {
uint32_t modifier = parse_modifier(symname);
if (modifier != 0) {
bc->modifiers |= modifier;
} else {
xkb_keysym_t sym = xkb_keysym_from_name(symname,
XKB_KEYSYM_NO_FLAGS);
if (sym == XKB_KEY_NoSymbol) {
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wlr_log(WLR_ERROR, "got unknown key binding symbol: %s",
symname);
free(bc);
bc = NULL;
break;
}
keysyms[bc->keysyms_len] = sym;
bc->keysyms_len++;
}
symname = strtok(NULL, "+");
}
free(symnames);
if (bc) {
wl_list_insert(bindings, &bc->link);
bc->command = strdup(command);
bc->keysyms = malloc(bc->keysyms_len * sizeof(xkb_keysym_t));
memcpy(bc->keysyms, keysyms, bc->keysyms_len * sizeof(xkb_keysym_t));
}
}
void add_switch_config(struct wl_list *switches, const char *switch_name,
const char* command) {
wlr_log(WLR_DEBUG, "config switch %s: %s", switch_name, command);
}
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static void config_handle_cursor(struct roots_config *config,
const char *seat_name, const char *name, const char *value) {
struct roots_cursor_config *cc;
bool found = false;
wl_list_for_each(cc, &config->cursors, link) {
if (strcmp(cc->seat, seat_name) == 0) {
found = true;
break;
}
}
if (!found) {
cc = calloc(1, sizeof(struct roots_cursor_config));
cc->seat = strdup(seat_name);
wl_list_insert(&config->cursors, &cc->link);
}
if (strcmp(name, "map-to-output") == 0) {
free(cc->mapped_output);
cc->mapped_output = strdup(value);
} else if (strcmp(name, "geometry") == 0) {
free(cc->mapped_box);
cc->mapped_box = parse_geometry(value);
} else if (strcmp(name, "theme") == 0) {
free(cc->theme);
cc->theme = strdup(value);
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} else if (strcmp(name, "default-image") == 0) {
free(cc->default_image);
cc->default_image = strdup(value);
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} else {
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wlr_log(WLR_ERROR, "got unknown cursor config: %s", name);
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}
}
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static void config_handle_keyboard(struct roots_config *config,
const char *device_name, const char *name, const char *value) {
struct roots_keyboard_config *kc;
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bool found = false;
wl_list_for_each(kc, &config->keyboards, link) {
if (strcmp(kc->name, device_name) == 0) {
found = true;
break;
}
}
if (!found) {
kc = calloc(1, sizeof(struct roots_keyboard_config));
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kc->name = strdup(device_name);
wl_list_insert(&config->keyboards, &kc->link);
}
if (strcmp(name, "meta-key") == 0) {
kc->meta_key = parse_modifier(value);
if (kc->meta_key == 0) {
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wlr_log(WLR_ERROR, "got unknown meta key: %s", name);
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}
} else if (strcmp(name, "rules") == 0) {
kc->rules = strdup(value);
} else if (strcmp(name, "model") == 0) {
kc->model = strdup(value);
} else if (strcmp(name, "layout") == 0) {
kc->layout = strdup(value);
} else if (strcmp(name, "variant") == 0) {
kc->variant = strdup(value);
} else if (strcmp(name, "options") == 0) {
kc->options = strdup(value);
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} else if (strcmp(name, "repeat-rate") == 0) {
kc->repeat_rate = strtol(value, NULL, 10);
} else if (strcmp(name, "repeat-delay") == 0) {
kc->repeat_delay = strtol(value, NULL, 10);
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} else {
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wlr_log(WLR_ERROR, "got unknown keyboard config: %s", name);
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}
}
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static const char *output_prefix = "output:";
static const char *device_prefix = "device:";
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static const char *keyboard_prefix = "keyboard:";
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static const char *cursor_prefix = "cursor:";
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static int config_ini_handler(void *user, const char *section, const char *name,
const char *value) {
struct roots_config *config = user;
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if (strcmp(section, "core") == 0) {
if (strcmp(name, "xwayland") == 0) {
if (strcasecmp(value, "true") == 0) {
config->xwayland = true;
} else if (strcasecmp(value, "immediate") == 0) {
config->xwayland = true;
config->xwayland_lazy = false;
} else if (strcasecmp(value, "false") == 0) {
config->xwayland = false;
} else {
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wlr_log(WLR_ERROR, "got unknown xwayland value: %s", value);
}
} else {
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wlr_log(WLR_ERROR, "got unknown core config: %s", name);
}
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} else if (strncmp(output_prefix, section, strlen(output_prefix)) == 0) {
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const char *output_name = section + strlen(output_prefix);
struct roots_output_config *oc;
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bool found = false;
wl_list_for_each(oc, &config->outputs, link) {
if (strcmp(oc->name, output_name) == 0) {
found = true;
break;
}
}
if (!found) {
oc = calloc(1, sizeof(struct roots_output_config));
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oc->name = strdup(output_name);
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
oc->scale = 1;
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oc->enable = true;
wl_list_init(&oc->modes);
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wl_list_insert(&config->outputs, &oc->link);
}
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if (strcmp(name, "enable") == 0) {
if (strcasecmp(value, "true") == 0) {
oc->enable = true;
} else if (strcasecmp(value, "false") == 0) {
oc->enable = false;
} else {
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wlr_log(WLR_ERROR, "got invalid output enable value: %s", value);
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}
} else if (strcmp(name, "x") == 0) {
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oc->x = strtol(value, NULL, 10);
} else if (strcmp(name, "y") == 0) {
oc->y = strtol(value, NULL, 10);
} else if (strcmp(name, "scale") == 0) {
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oc->scale = strtof(value, NULL);
assert(oc->scale > 0);
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} else if (strcmp(name, "rotate") == 0) {
if (strcmp(value, "normal") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
} else if (strcmp(value, "90") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_90;
} else if (strcmp(value, "180") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_180;
} else if (strcmp(value, "270") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_270;
} else if (strcmp(value, "flipped") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
} else if (strcmp(value, "flipped-90") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
} else if (strcmp(value, "flipped-180") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
} else if (strcmp(value, "flipped-270") == 0) {
oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
} else {
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wlr_log(WLR_ERROR, "got unknown transform value: %s", value);
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}
} else if (strcmp(name, "mode") == 0) {
char *end;
oc->mode.width = strtol(value, &end, 10);
assert(*end == 'x');
++end;
oc->mode.height = strtol(end, &end, 10);
if (*end) {
assert(*end == '@');
++end;
oc->mode.refresh_rate = strtof(end, &end);
assert(strcmp("Hz", end) == 0);
}
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wlr_log(WLR_DEBUG, "Configured output %s with mode %dx%d@%f",
oc->name, oc->mode.width, oc->mode.height,
oc->mode.refresh_rate);
} else if (strcmp(name, "modeline") == 0) {
struct roots_output_mode_config *mode = calloc(1, sizeof(*mode));
if (parse_modeline(value, &mode->info)) {
wl_list_insert(&oc->modes, &mode->link);
} else {
free(mode);
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wlr_log(WLR_ERROR, "Invalid modeline: %s", value);
}
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}
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} else if (strncmp(cursor_prefix, section, strlen(cursor_prefix)) == 0) {
const char *seat_name = section + strlen(cursor_prefix);
config_handle_cursor(config, seat_name, name, value);
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} else if (strcmp(section, "cursor") == 0) {
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config_handle_cursor(config, ROOTS_CONFIG_DEFAULT_SEAT_NAME, name,
value);
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} else if (strncmp(device_prefix, section, strlen(device_prefix)) == 0) {
const char *device_name = section + strlen(device_prefix);
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struct roots_device_config *dc;
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bool found = false;
wl_list_for_each(dc, &config->devices, link) {
if (strcmp(dc->name, device_name) == 0) {
found = true;
break;
}
}
if (!found) {
dc = calloc(1, sizeof(struct roots_device_config));
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dc->name = strdup(device_name);
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dc->seat = strdup(ROOTS_CONFIG_DEFAULT_SEAT_NAME);
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wl_list_insert(&config->devices, &dc->link);
}
if (strcmp(name, "map-to-output") == 0) {
free(dc->mapped_output);
dc->mapped_output = strdup(value);
} else if (strcmp(name, "geometry") == 0) {
free(dc->mapped_box);
dc->mapped_box = parse_geometry(value);
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} else if (strcmp(name, "seat") == 0) {
free(dc->seat);
dc->seat = strdup(value);
} else if (strcmp(name, "tap_enabled") == 0) {
if (strcasecmp(value, "true") == 0) {
dc->tap_enabled = true;
} else if (strcasecmp(value, "false") == 0) {
dc->tap_enabled = false;
} else {
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wlr_log(WLR_ERROR,
"got unknown tap_enabled value: %s",
value);
}
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} else {
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wlr_log(WLR_ERROR, "got unknown device config: %s", name);
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}
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} else if (strcmp(section, "keyboard") == 0) {
config_handle_keyboard(config, "", name, value);
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} else if (strncmp(keyboard_prefix,
section, strlen(keyboard_prefix)) == 0) {
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const char *device_name = section + strlen(keyboard_prefix);
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config_handle_keyboard(config, device_name, name, value);
} else if (strcmp(section, "bindings") == 0) {
add_binding_config(&config->bindings, name, value);
} else if (strcmp(section, "switches") == 0) {
add_switch_config(&config->bindings, name, value);
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} else {
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wlr_log(WLR_ERROR, "got unknown config section: %s", section);
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}
return 1;
}
struct roots_config *roots_config_create_from_args(int argc, char *argv[]) {
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struct roots_config *config = calloc(1, sizeof(struct roots_config));
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if (config == NULL) {
return NULL;
}
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config->xwayland = true;
config->xwayland_lazy = true;
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wl_list_init(&config->outputs);
wl_list_init(&config->devices);
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wl_list_init(&config->keyboards);
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wl_list_init(&config->cursors);
wl_list_init(&config->bindings);
wl_list_init(&config->switches);
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int c;
unsigned int log_verbosity = WLR_DEBUG;
while ((c = getopt(argc, argv, "C:E:hDl:")) != -1) {
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switch (c) {
case 'C':
config->config_path = strdup(optarg);
break;
case 'E':
config->startup_cmd = strdup(optarg);
break;
case 'D':
config->debug_damage_tracking = true;
break;
case 'l':
log_verbosity = strtoul(optarg, NULL, 10);
if (log_verbosity >= WLR_LOG_IMPORTANCE_LAST) {
log_verbosity = WLR_LOG_IMPORTANCE_LAST - 1;
}
break;
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case 'h':
case '?':
usage(argv[0], c != 'h');
}
}
wlr_log_init(log_verbosity, NULL);
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if (!config->config_path) {
// get the config path from the current directory
char cwd[MAXPATHLEN];
if (getcwd(cwd, sizeof(cwd)) != NULL) {
char buf[MAXPATHLEN];
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if (snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "rootston.ini") >= MAXPATHLEN) {
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wlr_log(WLR_ERROR, "config path too long");
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exit(1);
}
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config->config_path = strdup(buf);
} else {
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wlr_log(WLR_ERROR, "could not get cwd");
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exit(1);
}
}
int result = ini_parse(config->config_path, config_ini_handler, config);
if (result == -1) {
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wlr_log(WLR_DEBUG, "No config file found. Using sensible defaults.");
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add_binding_config(&config->bindings, "Logo+Shift+E", "exit");
add_binding_config(&config->bindings, "Ctrl+q", "close");
add_binding_config(&config->bindings, "Alt+Tab", "next_window");
add_binding_config(&config->bindings, "Logo+Escape", "break_pointer_constraint");
struct roots_keyboard_config *kc =
calloc(1, sizeof(struct roots_keyboard_config));
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kc->meta_key = WLR_MODIFIER_LOGO;
kc->name = strdup("");
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wl_list_insert(&config->keyboards, &kc->link);
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} else if (result == -2) {
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wlr_log(WLR_ERROR, "Could not allocate memory to parse config file");
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exit(1);
} else if (result != 0) {
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wlr_log(WLR_ERROR, "Could not parse config file");
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exit(1);
}
return config;
}
void roots_config_destroy(struct roots_config *config) {
struct roots_output_config *oc, *otmp = NULL;
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wl_list_for_each_safe(oc, otmp, &config->outputs, link) {
struct roots_output_mode_config *omc, *omctmp = NULL;
wl_list_for_each_safe(omc, omctmp, &oc->modes, link) {
free(omc);
}
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free(oc->name);
free(oc);
}
struct roots_device_config *dc, *dtmp = NULL;
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wl_list_for_each_safe(dc, dtmp, &config->devices, link) {
free(dc->name);
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free(dc->seat);
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free(dc->mapped_output);
free(dc->mapped_box);
free(dc);
}
struct roots_keyboard_config *kc, *ktmp = NULL;
wl_list_for_each_safe(kc, ktmp, &config->keyboards, link) {
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free(kc->name);
free(kc->rules);
free(kc->model);
free(kc->layout);
free(kc->variant);
free(kc->options);
free(kc);
}
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struct roots_cursor_config *cc, *ctmp = NULL;
wl_list_for_each_safe(cc, ctmp, &config->cursors, link) {
free(cc->seat);
free(cc->mapped_output);
free(cc->mapped_box);
free(cc->theme);
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free(cc->default_image);
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free(cc);
}
struct roots_binding_config *bc, *btmp = NULL;
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wl_list_for_each_safe(bc, btmp, &config->bindings, link) {
free(bc->keysyms);
free(bc->command);
free(bc);
}
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free(config->config_path);
free(config);
}
struct roots_output_config *roots_config_get_output(struct roots_config *config,
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struct wlr_output *output) {
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char name[88];
snprintf(name, sizeof(name), "%s %s %s", output->make, output->model,
output->serial);
struct roots_output_config *oc;
wl_list_for_each(oc, &config->outputs, link) {
if (strcmp(oc->name, output->name) == 0 ||
strcmp(oc->name, name) == 0) {
return oc;
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}
}
return NULL;
}
struct roots_device_config *roots_config_get_device(struct roots_config *config,
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struct wlr_input_device *device) {
struct roots_device_config *d_config;
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wl_list_for_each(d_config, &config->devices, link) {
if (strcmp(d_config->name, device->name) == 0) {
return d_config;
}
}
return NULL;
}
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struct roots_keyboard_config *roots_config_get_keyboard(
struct roots_config *config, struct wlr_input_device *device) {
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const char *device_name = "";
if (device != NULL) {
device_name = device->name;
}
struct roots_keyboard_config *kc;
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wl_list_for_each(kc, &config->keyboards, link) {
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if (strcmp(kc->name, device_name) == 0) {
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return kc;
}
}
return NULL;
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}
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struct roots_cursor_config *roots_config_get_cursor(struct roots_config *config,
const char *seat_name) {
if (seat_name == NULL) {
seat_name = ROOTS_CONFIG_DEFAULT_SEAT_NAME;
}
struct roots_cursor_config *cc;
wl_list_for_each(cc, &config->cursors, link) {
if (strcmp(cc->seat, seat_name) == 0) {
return cc;
}
}
return NULL;
}