mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-10-30 15:40:45 +00:00
372 lines
9.7 KiB
C
372 lines
9.7 KiB
C
#ifndef _POSIX_C_SOURCE
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#define _POSIX_C_SOURCE 200809L
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#endif
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#include <stdlib.h>
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#include <limits.h>
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#include <getopt.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <wlr/util/log.h>
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#include <wlr/types/wlr_box.h>
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#include "rootston/config.h"
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#include "rootston/ini.h"
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static void usage(const char *name, int ret) {
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fprintf(stderr,
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"usage: %s [-C <FILE>]\n"
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"\n"
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" -C <FILE> Path to the configuration file\n"
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" (default: rootston.ini).\n"
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" See `rootston.ini.example` for config\n"
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" file documentation.\n", name);
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exit(ret);
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}
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static struct wlr_box *parse_geometry(const char *str) {
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// format: {width}x{height}+{x}+{y}
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if (strlen(str) > 255) {
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wlr_log(L_ERROR, "cannot parse geometry string, too long");
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return NULL;
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}
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char *buf = strdup(str);
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struct wlr_box *box = calloc(1, sizeof(struct wlr_box));
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bool has_width = false;
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bool has_height = false;
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bool has_x = false;
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bool has_y = false;
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char *pch = strtok(buf, "x+");
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while (pch != NULL) {
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errno = 0;
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char *endptr;
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long val = strtol(pch, &endptr, 0);
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if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) ||
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(errno != 0 && val == 0)) {
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goto invalid_input;
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}
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if (endptr == pch) {
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goto invalid_input;
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}
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if (!has_width) {
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box->width = val;
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has_width = true;
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} else if (!has_height) {
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box->height = val;
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has_height = true;
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} else if (!has_x) {
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box->x = val;
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has_x = true;
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} else if (!has_y) {
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box->y = val;
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has_y = true;
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} else {
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break;
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}
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pch = strtok(NULL, "x+");
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}
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if (!has_width || !has_height) {
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goto invalid_input;
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}
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free(buf);
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return box;
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invalid_input:
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wlr_log(L_ERROR, "could not parse geometry string: %s", str);
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free(buf);
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free(box);
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return NULL;
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}
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static uint32_t parse_modifier(const char *symname) {
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if (strcmp(symname, "Shift") == 0) {
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return WLR_MODIFIER_SHIFT;
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} else if (strcmp(symname, "Caps") == 0) {
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return WLR_MODIFIER_CAPS;
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} else if (strcmp(symname, "Ctrl") == 0) {
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return WLR_MODIFIER_CTRL;
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} else if (strcmp(symname, "Alt") == 0) {
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return WLR_MODIFIER_ALT;
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} else if (strcmp(symname, "Mod2") == 0) {
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return WLR_MODIFIER_MOD2;
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} else if (strcmp(symname, "Mod3") == 0) {
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return WLR_MODIFIER_MOD3;
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} else if (strcmp(symname, "Logo") == 0) {
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return WLR_MODIFIER_LOGO;
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} else if (strcmp(symname, "Mod5") == 0) {
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return WLR_MODIFIER_MOD5;
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} else {
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return 0;
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}
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}
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static const char *output_prefix = "output:";
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static const char *device_prefix = "device:";
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static int config_ini_handler(void *user, const char *section, const char *name,
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const char *value) {
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struct roots_config *config = user;
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if (strcmp(section, "core") == 0) {
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if (strcmp(name, "xwayland") == 0) {
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if (strcasecmp(value, "true") == 0) {
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config->xwayland = true;
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} else if (strcasecmp(value, "false") == 0) {
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config->xwayland = false;
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} else {
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wlr_log(L_ERROR, "got unknown xwayland value: %s", value);
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}
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} else {
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wlr_log(L_ERROR, "got unknown core config: %s", name);
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}
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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);
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struct output_config *oc;
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bool found = false;
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wl_list_for_each(oc, &config->outputs, link) {
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if (strcmp(oc->name, output_name) == 0) {
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found = true;
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break;
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}
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}
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if (!found) {
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oc = calloc(1, sizeof(struct output_config));
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oc->name = strdup(output_name);
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oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
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wl_list_insert(&config->outputs, &oc->link);
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}
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if (strcmp(name, "x") == 0) {
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oc->x = strtol(value, NULL, 10);
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} else if (strcmp(name, "y") == 0) {
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oc->y = strtol(value, NULL, 10);
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} else if (strcmp(name, "rotate") == 0) {
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if (strcmp(value, "90") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_90;
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} else if (strcmp(value, "180") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_180;
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} else if (strcmp(value, "270") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_270;
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} else if (strcmp(value, "flipped") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
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} else if (strcmp(value, "flipped-90") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
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} else if (strcmp(value, "flipped-180") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
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} else if (strcmp(value, "flipped-270") == 0) {
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oc->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
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} else {
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wlr_log(L_ERROR, "got unknown transform value: %s", value);
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}
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}
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} else if (strcmp(section, "cursor") == 0) {
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if (strcmp(name, "map-to-output") == 0) {
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free(config->cursor.mapped_output);
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config->cursor.mapped_output = strdup(value);
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} else if (strcmp(name, "geometry") == 0) {
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free(config->cursor.mapped_box);
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config->cursor.mapped_box = parse_geometry(value);
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} else {
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wlr_log(L_ERROR, "got unknown cursor config: %s", name);
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}
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} else if (strncmp(device_prefix, section, strlen(device_prefix)) == 0) {
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const char *device_name = section + strlen(device_prefix);
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struct device_config *dc;
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bool found = false;
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wl_list_for_each(dc, &config->devices, link) {
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if (strcmp(dc->name, device_name) == 0) {
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found = true;
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break;
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}
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}
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if (!found) {
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dc = calloc(1, sizeof(struct device_config));
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dc->name = strdup(device_name);
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wl_list_insert(&config->devices, &dc->link);
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}
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if (strcmp(name, "map-to-output") == 0) {
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free(dc->mapped_output);
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dc->mapped_output = strdup(value);
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} else if (strcmp(name, "geometry") == 0) {
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free(dc->mapped_box);
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dc->mapped_box = parse_geometry(value);
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} else {
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wlr_log(L_ERROR, "got unknown device config: %s", name);
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}
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} else if (strcmp(section, "keyboard") == 0) {
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if (strcmp(name, "meta-key") == 0) {
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config->keyboard.meta_key = parse_modifier(value);
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if (config->keyboard.meta_key == 0) {
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wlr_log(L_ERROR, "got unknown meta key: %s", name);
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}
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} else {
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wlr_log(L_ERROR, "got unknown keyboard config: %s", name);
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}
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} else if (strcmp(section, "bindings") == 0) {
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struct binding_config *bc = calloc(1, sizeof(struct binding_config));
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wl_list_insert(&config->bindings, &bc->link);
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bc->command = strdup(value);
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size_t keysyms_len = 1;
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char *symnames = strdup(name);
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for (char *c = symnames; *c != '\0'; c++) {
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if (*c == '+') {
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*c = '\0';
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keysyms_len++;
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}
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}
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// TODO: bc->keysyms is larger than needed
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bc->keysyms = calloc(1, keysyms_len * sizeof(xkb_keysym_t));
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char *symname = symnames;
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for (size_t i = 0; i < keysyms_len; i++) {
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uint32_t modifier = parse_modifier(symname);
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if (modifier != 0) {
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bc->modifiers |= modifier;
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} else {
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xkb_keysym_t sym = xkb_keysym_from_name(symname,
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XKB_KEYSYM_NO_FLAGS);
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if (sym == XKB_KEY_NoSymbol) {
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wlr_log(L_ERROR, "got unknown key binding symbol: %s",
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symname);
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wl_list_remove(&bc->link);
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free(bc->keysyms);
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free(bc);
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break;
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}
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bc->keysyms[bc->keysyms_len] = sym;
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bc->keysyms_len++;
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}
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symname += strlen(symname) + 1;
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}
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free(symnames);
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} else {
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wlr_log(L_ERROR, "got unknown config section: %s", section);
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}
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return 1;
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}
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struct roots_config *parse_args(int argc, char *argv[]) {
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struct roots_config *config = calloc(1, sizeof(struct roots_config));
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config->xwayland = true;
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wl_list_init(&config->outputs);
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wl_list_init(&config->devices);
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wl_list_init(&config->bindings);
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int c;
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while ((c = getopt(argc, argv, "C:h")) != -1) {
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switch (c) {
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case 'C':
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config->config_path = strdup(optarg);
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break;
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case 'h':
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case '?':
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usage(argv[0], c != 'h');
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}
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}
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if (!config->config_path) {
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// get the config path from the current directory
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char cwd[MAXPATHLEN];
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if (getcwd(cwd, sizeof(cwd)) != NULL) {
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char buf[MAXPATHLEN];
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snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "rootston.ini");
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config->config_path = strdup(buf);
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} else {
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wlr_log(L_ERROR, "could not get cwd");
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exit(1);
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}
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}
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int result = ini_parse(config->config_path, config_ini_handler, config);
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if (result == -1) {
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wlr_log(L_DEBUG, "No config file found. Using empty config.");
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struct binding_config *bc = calloc(1, sizeof(struct binding_config));
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wl_list_insert(&config->bindings, &bc->link);
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bc->command = strdup("exit");
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bc->modifiers = WLR_MODIFIER_LOGO;
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bc->keysyms_len = 2;
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bc->keysyms = calloc(1, bc->keysyms_len * sizeof(xkb_keysym_t));
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bc->keysyms[0] = XKB_KEY_Meta_L;
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bc->keysyms[1] = XKB_KEY_q;
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} else if (result == -2) {
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wlr_log(L_ERROR, "Could not allocate memory to parse config file");
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exit(1);
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} else if (result != 0) {
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wlr_log(L_ERROR, "Could not parse config file");
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exit(1);
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}
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return config;
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}
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void roots_config_destroy(struct roots_config *config) {
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struct output_config *oc, *otmp = NULL;
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wl_list_for_each_safe(oc, otmp, &config->outputs, link) {
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free(oc->name);
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free(oc);
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}
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struct device_config *dc, *dtmp = NULL;
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wl_list_for_each_safe(dc, dtmp, &config->devices, link) {
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free(dc->name);
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free(dc->mapped_output);
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free(dc->mapped_box);
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free(dc);
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}
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struct binding_config *bc, *btmp = NULL;
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wl_list_for_each_safe(bc, btmp, &config->bindings, link) {
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free(bc->keysyms);
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free(bc->command);
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free(bc);
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}
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free(config->config_path);
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free(config->cursor.mapped_output);
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free(config->cursor.mapped_box);
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free(config);
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}
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struct output_config *config_get_output(struct roots_config *config,
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struct wlr_output *output) {
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struct output_config *o_config;
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wl_list_for_each(o_config, &config->outputs, link) {
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if (strcmp(o_config->name, output->name) == 0) {
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return o_config;
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}
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}
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return NULL;
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}
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struct device_config *config_get_device(struct roots_config *config,
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struct wlr_input_device *device) {
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struct device_config *d_config;
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wl_list_for_each(d_config, &config->devices, link) {
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if (strcmp(d_config->name, device->name) == 0) {
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return d_config;
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}
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}
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return NULL;
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}
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