swayfx/sway/config.c
Tarmack 36d9037f2c fix_edge_gaps: Allow negative values for outer gaps.
While allowing negative values for the outer gaps it is still prevented that negative values move windows out of the container. This replaces the non-i3 option for edge_gaps.
2018-10-13 17:42:49 +02:00

856 lines
23 KiB
C

#define _POSIX_C_SOURCE 200809L
#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <libgen.h>
#include <wordexp.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <signal.h>
#include <libinput.h>
#include <limits.h>
#include <dirent.h>
#include <strings.h>
#ifdef __linux__
#include <linux/input-event-codes.h>
#elif __FreeBSD__
#include <dev/evdev/input-event-codes.h>
#endif
#include <wlr/types/wlr_output.h>
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/commands.h"
#include "sway/config.h"
#include "sway/criteria.h"
#include "sway/swaynag.h"
#include "sway/tree/arrange.h"
#include "sway/tree/root.h"
#include "sway/tree/workspace.h"
#include "cairo.h"
#include "pango.h"
#include "readline.h"
#include "stringop.h"
#include "list.h"
#include "log.h"
struct sway_config *config = NULL;
static void free_mode(struct sway_mode *mode) {
int i;
if (!mode) {
return;
}
free(mode->name);
if (mode->keysym_bindings) {
for (i = 0; i < mode->keysym_bindings->length; i++) {
free_sway_binding(mode->keysym_bindings->items[i]);
}
list_free(mode->keysym_bindings);
}
if (mode->keycode_bindings) {
for (i = 0; i < mode->keycode_bindings->length; i++) {
free_sway_binding(mode->keycode_bindings->items[i]);
}
list_free(mode->keycode_bindings);
}
if (mode->mouse_bindings) {
for (i = 0; i < mode->mouse_bindings->length; i++) {
free_sway_binding(mode->mouse_bindings->items[i]);
}
list_free(mode->mouse_bindings);
}
free(mode);
}
void free_config(struct sway_config *config) {
if (!config) {
return;
}
memset(&config->handler_context, 0, sizeof(config->handler_context));
// TODO: handle all currently unhandled lists as we add implementations
if (config->symbols) {
for (int i = 0; i < config->symbols->length; ++i) {
free_sway_variable(config->symbols->items[i]);
}
list_free(config->symbols);
}
if (config->modes) {
for (int i = 0; i < config->modes->length; ++i) {
free_mode(config->modes->items[i]);
}
list_free(config->modes);
}
if (config->bars) {
for (int i = 0; i < config->bars->length; ++i) {
free_bar_config(config->bars->items[i]);
}
list_free(config->bars);
}
list_free(config->cmd_queue);
if (config->workspace_configs) {
for (int i = 0; i < config->workspace_configs->length; i++) {
free_workspace_config(config->workspace_configs->items[i]);
}
list_free(config->workspace_configs);
}
if (config->output_configs) {
for (int i = 0; i < config->output_configs->length; i++) {
free_output_config(config->output_configs->items[i]);
}
list_free(config->output_configs);
}
if (config->input_configs) {
for (int i = 0; i < config->input_configs->length; i++) {
free_input_config(config->input_configs->items[i]);
}
list_free(config->input_configs);
}
if (config->seat_configs) {
for (int i = 0; i < config->seat_configs->length; i++) {
free_seat_config(config->seat_configs->items[i]);
}
list_free(config->seat_configs);
}
if (config->criteria) {
for (int i = 0; i < config->criteria->length; ++i) {
criteria_destroy(config->criteria->items[i]);
}
list_free(config->criteria);
}
list_free(config->no_focus);
list_free(config->active_bar_modifiers);
list_free(config->config_chain);
list_free(config->command_policies);
list_free(config->feature_policies);
list_free(config->ipc_policies);
free(config->floating_scroll_up_cmd);
free(config->floating_scroll_down_cmd);
free(config->floating_scroll_left_cmd);
free(config->floating_scroll_right_cmd);
free(config->font);
free(config->swaybg_command);
free(config->swaynag_command);
free((char *)config->current_config_path);
free((char *)config->current_config);
free(config);
}
static void destroy_removed_seats(struct sway_config *old_config,
struct sway_config *new_config) {
struct seat_config *seat_config;
struct sway_seat *seat;
int i;
for (i = 0; i < old_config->seat_configs->length; i++) {
seat_config = old_config->seat_configs->items[i];
/* Also destroy seats that aren't present in new config */
if (new_config && list_seq_find(new_config->seat_configs,
seat_name_cmp, seat_config->name) < 0) {
seat = input_manager_get_seat(input_manager,
seat_config->name);
seat_destroy(seat);
}
}
}
static void set_color(float dest[static 4], uint32_t color) {
dest[0] = ((color >> 16) & 0xff) / 255.0;
dest[1] = ((color >> 8) & 0xff) / 255.0;
dest[2] = (color & 0xff) / 255.0;
dest[3] = 1.0;
}
static void config_defaults(struct sway_config *config) {
if (!(config->swaynag_command = strdup("swaynag"))) goto cleanup;
config->swaynag_config_errors = (struct swaynag_instance){
.args = "--type error "
"--message 'There are errors in your config file' "
"--detailed-message "
"--button 'Exit sway' 'swaymsg exit' "
"--button 'Reload sway' 'swaymsg reload'",
.pid = -1,
.detailed = true,
};
if (!(config->symbols = create_list())) goto cleanup;
if (!(config->modes = create_list())) goto cleanup;
if (!(config->bars = create_list())) goto cleanup;
if (!(config->workspace_configs = create_list())) goto cleanup;
if (!(config->criteria = create_list())) goto cleanup;
if (!(config->no_focus = create_list())) goto cleanup;
if (!(config->input_configs = create_list())) goto cleanup;
if (!(config->seat_configs = create_list())) goto cleanup;
if (!(config->output_configs = create_list())) goto cleanup;
if (!(config->cmd_queue = create_list())) goto cleanup;
if (!(config->current_mode = malloc(sizeof(struct sway_mode))))
goto cleanup;
if (!(config->current_mode->name = malloc(sizeof("default")))) goto cleanup;
strcpy(config->current_mode->name, "default");
if (!(config->current_mode->keysym_bindings = create_list())) goto cleanup;
if (!(config->current_mode->keycode_bindings = create_list())) goto cleanup;
if (!(config->current_mode->mouse_bindings = create_list())) goto cleanup;
list_add(config->modes, config->current_mode);
config->floating_mod = 0;
config->floating_mod_inverse = false;
config->dragging_key = BTN_LEFT;
config->resizing_key = BTN_RIGHT;
if (!(config->floating_scroll_up_cmd = strdup(""))) goto cleanup;
if (!(config->floating_scroll_down_cmd = strdup(""))) goto cleanup;
if (!(config->floating_scroll_left_cmd = strdup(""))) goto cleanup;
if (!(config->floating_scroll_right_cmd = strdup(""))) goto cleanup;
config->default_layout = L_NONE;
config->default_orientation = L_NONE;
if (!(config->font = strdup("monospace 10"))) goto cleanup;
config->font_height = 17; // height of monospace 10
config->urgent_timeout = 500;
config->popup_during_fullscreen = POPUP_SMART;
// floating view
config->floating_maximum_width = 0;
config->floating_maximum_height = 0;
config->floating_minimum_width = 75;
config->floating_minimum_height = 50;
// Flags
config->focus_follows_mouse = true;
config->raise_floating = true;
config->mouse_warping = WARP_OUTPUT;
config->focus_wrapping = WRAP_YES;
config->validating = false;
config->reloading = false;
config->active = false;
config->failed = false;
config->auto_back_and_forth = false;
config->reading = false;
config->show_marks = true;
config->tiling_drag = true;
config->smart_gaps = false;
config->gaps_inner = 0;
config->gaps_outer = 0;
if (!(config->active_bar_modifiers = create_list())) goto cleanup;
if (!(config->swaybg_command = strdup("swaybg"))) goto cleanup;
if (!(config->config_chain = create_list())) goto cleanup;
config->current_config_path = NULL;
config->current_config = NULL;
// borders
config->border = B_NORMAL;
config->floating_border = B_NORMAL;
config->border_thickness = 2;
config->floating_border_thickness = 2;
config->hide_edge_borders = E_NONE;
config->saved_edge_borders = E_NONE;
// border colors
set_color(config->border_colors.focused.border, 0x4C7899);
set_color(config->border_colors.focused.border, 0x4C7899);
set_color(config->border_colors.focused.background, 0x285577);
set_color(config->border_colors.focused.text, 0xFFFFFFFF);
set_color(config->border_colors.focused.indicator, 0x2E9EF4);
set_color(config->border_colors.focused.child_border, 0x285577);
set_color(config->border_colors.focused_inactive.border, 0x333333);
set_color(config->border_colors.focused_inactive.background, 0x5F676A);
set_color(config->border_colors.focused_inactive.text, 0xFFFFFFFF);
set_color(config->border_colors.focused_inactive.indicator, 0x484E50);
set_color(config->border_colors.focused_inactive.child_border, 0x5F676A);
set_color(config->border_colors.unfocused.border, 0x333333);
set_color(config->border_colors.unfocused.background, 0x222222);
set_color(config->border_colors.unfocused.text, 0x88888888);
set_color(config->border_colors.unfocused.indicator, 0x292D2E);
set_color(config->border_colors.unfocused.child_border, 0x222222);
set_color(config->border_colors.urgent.border, 0x2F343A);
set_color(config->border_colors.urgent.background, 0x900000);
set_color(config->border_colors.urgent.text, 0xFFFFFFFF);
set_color(config->border_colors.urgent.indicator, 0x900000);
set_color(config->border_colors.urgent.child_border, 0x900000);
set_color(config->border_colors.placeholder.border, 0x000000);
set_color(config->border_colors.placeholder.background, 0x0C0C0C);
set_color(config->border_colors.placeholder.text, 0xFFFFFFFF);
set_color(config->border_colors.placeholder.indicator, 0x000000);
set_color(config->border_colors.placeholder.child_border, 0x0C0C0C);
set_color(config->border_colors.background, 0xFFFFFF);
// Security
if (!(config->command_policies = create_list())) goto cleanup;
if (!(config->feature_policies = create_list())) goto cleanup;
if (!(config->ipc_policies = create_list())) goto cleanup;
return;
cleanup:
sway_abort("Unable to allocate config structures");
}
static bool file_exists(const char *path) {
return path && access(path, R_OK) != -1;
}
static char *get_config_path(void) {
static const char *config_paths[] = {
"$HOME/.sway/config",
"$XDG_CONFIG_HOME/sway/config",
"$HOME/.i3/config",
"$XDG_CONFIG_HOME/i3/config",
SYSCONFDIR "/sway/config",
SYSCONFDIR "/i3/config",
};
if (!getenv("XDG_CONFIG_HOME")) {
char *home = getenv("HOME");
char *config_home = malloc(strlen(home) + strlen("/.config") + 1);
if (!config_home) {
wlr_log(WLR_ERROR, "Unable to allocate $HOME/.config");
} else {
strcpy(config_home, home);
strcat(config_home, "/.config");
setenv("XDG_CONFIG_HOME", config_home, 1);
wlr_log(WLR_DEBUG, "Set XDG_CONFIG_HOME to %s", config_home);
free(config_home);
}
}
wordexp_t p;
char *path;
int i;
for (i = 0; i < (int)(sizeof(config_paths) / sizeof(char *)); ++i) {
if (wordexp(config_paths[i], &p, 0) == 0) {
path = strdup(p.we_wordv[0]);
wordfree(&p);
if (file_exists(path)) {
return path;
}
free(path);
}
}
return NULL; // Not reached
}
static bool load_config(const char *path, struct sway_config *config,
struct swaynag_instance *swaynag) {
if (path == NULL) {
wlr_log(WLR_ERROR, "Unable to find a config file!");
return false;
}
wlr_log(WLR_INFO, "Loading config from %s", path);
struct stat sb;
if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
return false;
}
FILE *f = fopen(path, "r");
if (!f) {
wlr_log(WLR_ERROR, "Unable to open %s for reading", path);
return false;
}
bool config_load_success = read_config(f, config, swaynag);
fclose(f);
if (!config_load_success) {
wlr_log(WLR_ERROR, "Error(s) loading config!");
}
return true;
}
bool load_main_config(const char *file, bool is_active, bool validating) {
char *path;
if (file != NULL) {
path = strdup(file);
} else {
path = get_config_path();
}
struct sway_config *old_config = config;
config = calloc(1, sizeof(struct sway_config));
if (!config) {
sway_abort("Unable to allocate config");
}
config_defaults(config);
config->validating = validating;
if (is_active) {
wlr_log(WLR_DEBUG, "Performing configuration file reload");
config->reloading = true;
config->active = true;
swaynag_kill(&old_config->swaynag_config_errors);
memcpy(&config->swaynag_config_errors,
&old_config->swaynag_config_errors,
sizeof(struct swaynag_instance));
create_default_output_configs();
}
config->current_config_path = path;
list_add(config->config_chain, path);
config->reading = true;
// Read security configs
// TODO: Security
bool success = true;
/*
DIR *dir = opendir(SYSCONFDIR "/sway/security.d");
if (!dir) {
wlr_log(WLR_ERROR,
"%s does not exist, sway will have no security configuration"
" and will probably be broken", SYSCONFDIR "/sway/security.d");
} else {
list_t *secconfigs = create_list();
char *base = SYSCONFDIR "/sway/security.d/";
struct dirent *ent = readdir(dir);
struct stat s;
while (ent != NULL) {
char *_path = malloc(strlen(ent->d_name) + strlen(base) + 1);
strcpy(_path, base);
strcat(_path, ent->d_name);
lstat(_path, &s);
if (S_ISREG(s.st_mode) && ent->d_name[0] != '.') {
list_add(secconfigs, _path);
}
else {
free(_path);
}
ent = readdir(dir);
}
closedir(dir);
list_qsort(secconfigs, qstrcmp);
for (int i = 0; i < secconfigs->length; ++i) {
char *_path = secconfigs->items[i];
if (stat(_path, &s) || s.st_uid != 0 || s.st_gid != 0 ||
(((s.st_mode & 0777) != 0644) &&
(s.st_mode & 0777) != 0444)) {
wlr_log(WLR_ERROR,
"Refusing to load %s - it must be owned by root "
"and mode 644 or 444", _path);
success = false;
} else {
success = success && load_config(_path, config);
}
}
free_flat_list(secconfigs);
}
*/
success = success && load_config(path, config,
&config->swaynag_config_errors);
if (validating) {
free_config(config);
config = old_config;
return success;
}
if (is_active) {
for (int i = 0; i < config->output_configs->length; i++) {
apply_output_config_to_outputs(config->output_configs->items[i]);
}
config->reloading = false;
if (config->swaynag_config_errors.pid > 0) {
swaynag_show(&config->swaynag_config_errors);
}
}
if (old_config) {
destroy_removed_seats(old_config, config);
free_config(old_config);
}
config->reading = false;
return success;
}
static bool load_include_config(const char *path, const char *parent_dir,
struct sway_config *config, struct swaynag_instance *swaynag) {
// save parent config
const char *parent_config = config->current_config_path;
char *full_path;
int len = strlen(path);
if (len >= 1 && path[0] != '/') {
len = len + strlen(parent_dir) + 2;
full_path = malloc(len * sizeof(char));
if (!full_path) {
wlr_log(WLR_ERROR,
"Unable to allocate full path to included config");
return false;
}
snprintf(full_path, len, "%s/%s", parent_dir, path);
} else {
full_path = strdup(path);
}
char *real_path = realpath(full_path, NULL);
free(full_path);
if (real_path == NULL) {
wlr_log(WLR_DEBUG, "%s not found.", path);
return false;
}
// check if config has already been included
int j;
for (j = 0; j < config->config_chain->length; ++j) {
char *old_path = config->config_chain->items[j];
if (strcmp(real_path, old_path) == 0) {
wlr_log(WLR_DEBUG,
"%s already included once, won't be included again.",
real_path);
free(real_path);
return false;
}
}
config->current_config_path = real_path;
list_add(config->config_chain, real_path);
int index = config->config_chain->length - 1;
if (!load_config(real_path, config, swaynag)) {
free(real_path);
config->current_config_path = parent_config;
list_del(config->config_chain, index);
return false;
}
// restore current_config_path
config->current_config_path = parent_config;
return true;
}
bool load_include_configs(const char *path, struct sway_config *config,
struct swaynag_instance *swaynag) {
char *wd = getcwd(NULL, 0);
char *parent_path = strdup(config->current_config_path);
const char *parent_dir = dirname(parent_path);
if (chdir(parent_dir) < 0) {
free(parent_path);
free(wd);
return false;
}
wordexp_t p;
if (wordexp(path, &p, 0) < 0) {
free(parent_path);
free(wd);
return false;
}
char **w = p.we_wordv;
size_t i;
for (i = 0; i < p.we_wordc; ++i) {
load_include_config(w[i], parent_dir, config, swaynag);
}
free(parent_path);
wordfree(&p);
// restore wd
if (chdir(wd) < 0) {
free(wd);
wlr_log(WLR_ERROR, "failed to restore working directory");
return false;
}
free(wd);
return true;
}
static int detect_brace_on_following_line(FILE *file, char *line,
int line_number) {
int lines = 0;
if (line[strlen(line) - 1] != '{' && line[strlen(line) - 1] != '}') {
char *peeked = NULL;
long position = 0;
do {
wlr_log(WLR_DEBUG, "Peeking line %d", line_number + lines + 1);
free(peeked);
peeked = peek_line(file, lines, &position);
if (peeked) {
peeked = strip_whitespace(peeked);
}
wlr_log(WLR_DEBUG, "Peeked line: `%s`", peeked);
lines++;
} while (peeked && strlen(peeked) == 0);
if (peeked && strlen(peeked) == 1 && peeked[0] == '{') {
fseek(file, position, SEEK_SET);
} else {
lines = 0;
}
free(peeked);
}
return lines;
}
static char *expand_line(const char *block, const char *line, bool add_brace) {
int size = (block ? strlen(block) + 1 : 0) + strlen(line)
+ (add_brace ? 2 : 0) + 1;
char *expanded = calloc(1, size);
if (!expanded) {
wlr_log(WLR_ERROR, "Cannot allocate expanded line buffer");
return NULL;
}
snprintf(expanded, size, "%s%s%s%s", block ? block : "",
block ? " " : "", line, add_brace ? " {" : "");
return expanded;
}
bool read_config(FILE *file, struct sway_config *config,
struct swaynag_instance *swaynag) {
bool reading_main_config = false;
char *this_config = NULL;
size_t config_size = 0;
if (config->current_config == NULL) {
reading_main_config = true;
int ret_seek = fseek(file, 0, SEEK_END);
long ret_tell = ftell(file);
if (ret_seek == -1 || ret_tell == -1) {
wlr_log(WLR_ERROR, "Unable to get size of config file");
return false;
}
config_size = ret_tell;
rewind(file);
config->current_config = this_config = calloc(1, config_size + 1);
if (this_config == NULL) {
wlr_log(WLR_ERROR, "Unable to allocate buffer for config contents");
return false;
}
}
bool success = true;
int line_number = 0;
char *line;
list_t *stack = create_list();
size_t read = 0;
while (!feof(file)) {
char *block = stack->length ? stack->items[0] : NULL;
line = read_line(file);
if (!line) {
continue;
}
line_number++;
wlr_log(WLR_DEBUG, "Read line %d: %s", line_number, line);
if (reading_main_config) {
size_t length = strlen(line);
if (read + length > config_size) {
wlr_log(WLR_ERROR, "Config file changed during reading");
list_foreach(stack, free);
list_free(stack);
free(line);
return false;
}
strcpy(this_config + read, line);
if (line_number != 1) {
this_config[read - 1] = '\n';
}
read += length + 1;
}
line = strip_whitespace(line);
if (line[0] == '#') {
free(line);
continue;
}
if (strlen(line) == 0) {
free(line);
continue;
}
int brace_detected = detect_brace_on_following_line(file, line,
line_number);
if (brace_detected > 0) {
line_number += brace_detected;
wlr_log(WLR_DEBUG, "Detected open brace on line %d", line_number);
}
char *expanded = expand_line(block, line, brace_detected > 0);
if (!expanded) {
list_foreach(stack, free);
list_free(stack);
free(line);
return false;
}
wlr_log(WLR_DEBUG, "Expanded line: %s", expanded);
struct cmd_results *res;
if (block && strcmp(block, "<commands>") == 0) {
// Special case
res = config_commands_command(expanded);
} else {
res = config_command(expanded);
}
switch(res->status) {
case CMD_FAILURE:
case CMD_INVALID:
wlr_log(WLR_ERROR, "Error on line %i '%s': %s (%s)", line_number,
line, res->error, config->current_config_path);
if (!config->validating) {
swaynag_log(config->swaynag_command, swaynag,
"Error on line %i (%s) '%s': %s", line_number,
config->current_config_path, line, res->error);
}
success = false;
break;
case CMD_DEFER:
wlr_log(WLR_DEBUG, "Deferring command `%s'", line);
list_add(config->cmd_queue, strdup(expanded));
break;
case CMD_BLOCK_COMMANDS:
wlr_log(WLR_DEBUG, "Entering commands block");
list_insert(stack, 0, "<commands>");
break;
case CMD_BLOCK:
wlr_log(WLR_DEBUG, "Entering block '%s'", res->input);
list_insert(stack, 0, strdup(res->input));
if (strcmp(res->input, "bar") == 0) {
config->current_bar = NULL;
}
break;
case CMD_BLOCK_END:
if (!block) {
wlr_log(WLR_DEBUG, "Unmatched '}' on line %i", line_number);
success = false;
break;
}
if (strcmp(block, "bar") == 0) {
config->current_bar = NULL;
}
wlr_log(WLR_DEBUG, "Exiting block '%s'", block);
list_del(stack, 0);
free(block);
memset(&config->handler_context, 0,
sizeof(config->handler_context));
default:;
}
free(expanded);
free(line);
free_cmd_results(res);
}
list_foreach(stack, free);
list_free(stack);
return success;
}
char *do_var_replacement(char *str) {
int i;
char *find = str;
while ((find = strchr(find, '$'))) {
// Skip if escaped.
if (find > str && find[-1] == '\\') {
if (find == str + 1 || !(find > str + 1 && find[-2] == '\\')) {
++find;
continue;
}
}
// Unescape double $ and move on
if (find[1] == '$') {
size_t length = strlen(find + 1);
memmove(find, find + 1, length);
find[length] = '\0';
++find;
continue;
}
// Find matching variable
for (i = 0; i < config->symbols->length; ++i) {
struct sway_variable *var = config->symbols->items[i];
int vnlen = strlen(var->name);
if (strncmp(find, var->name, vnlen) == 0) {
int vvlen = strlen(var->value);
char *newstr = malloc(strlen(str) - vnlen + vvlen + 1);
if (!newstr) {
wlr_log(WLR_ERROR,
"Unable to allocate replacement "
"during variable expansion");
break;
}
char *newptr = newstr;
int offset = find - str;
strncpy(newptr, str, offset);
newptr += offset;
strncpy(newptr, var->value, vvlen);
newptr += vvlen;
strcpy(newptr, find + vnlen);
free(str);
str = newstr;
find = str + offset + vvlen;
break;
}
}
if (i == config->symbols->length) {
++find;
}
}
return str;
}
// the naming is intentional (albeit long): a workspace_output_cmp function
// would compare two structs in full, while this method only compares the
// workspace.
int workspace_output_cmp_workspace(const void *a, const void *b) {
const struct workspace_config *wsa = a, *wsb = b;
return lenient_strcmp(wsa->workspace, wsb->workspace);
}
static void find_font_height_iterator(struct sway_container *con, void *data) {
size_t amount_below_baseline = con->title_height - con->title_baseline;
size_t extended_height = config->font_baseline + amount_below_baseline;
if (extended_height > config->font_height) {
config->font_height = extended_height;
}
}
static void find_baseline_iterator(struct sway_container *con, void *data) {
bool *recalculate = data;
if (*recalculate) {
container_calculate_title_height(con);
}
if (con->title_baseline > config->font_baseline) {
config->font_baseline = con->title_baseline;
}
}
void config_update_font_height(bool recalculate) {
size_t prev_max_height = config->font_height;
config->font_height = 0;
config->font_baseline = 0;
root_for_each_container(find_baseline_iterator, &recalculate);
root_for_each_container(find_font_height_iterator, NULL);
if (config->font_height != prev_max_height) {
arrange_root();
}
}