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#define _POSIX_C_SOURCE 200809L
#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <wordexp.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <signal.h>
#include <strings.h>
#include <signal.h>
#include "sway/config.h"
#include "sway/output.h"
#include "stringop.h"
#include "list.h"
#include "log.h"
static void terminate_swaybar(pid_t pid) {
wlr_log(WLR_DEBUG, "Terminating swaybar %d", pid);
int ret = kill(-pid, SIGTERM);
if (ret != 0) {
wlr_log_errno(WLR_ERROR, "Unable to terminate swaybar %d", pid);
} else {
int status;
waitpid(pid, &status, 0);
}
}
void free_bar_binding(struct bar_binding *binding) {
if (!binding) {
return;
}
free(binding->command);
free(binding);
}
void free_bar_config(struct bar_config *bar) {
if (!bar) {
return;
}
free(bar->id);
free(bar->mode);
free(bar->position);
free(bar->hidden_state);
free(bar->status_command);
free(bar->font);
free(bar->separator_symbol);
for (int i = 0; i < bar->bindings->length; i++) {
struct bar_binding *binding = bar->bindings->items[i];
free_bar_binding(binding);
}
list_free(bar->bindings);
if (bar->outputs) {
free_flat_list(bar->outputs);
}
if (bar->pid != 0) {
terminate_swaybar(bar->pid);
}
free(bar->colors.background);
free(bar->colors.statusline);
free(bar->colors.separator);
free(bar->colors.focused_background);
free(bar->colors.focused_statusline);
free(bar->colors.focused_separator);
free(bar->colors.focused_workspace_border);
free(bar->colors.focused_workspace_bg);
free(bar->colors.focused_workspace_text);
free(bar->colors.active_workspace_border);
free(bar->colors.active_workspace_bg);
free(bar->colors.active_workspace_text);
free(bar->colors.inactive_workspace_border);
free(bar->colors.inactive_workspace_bg);
free(bar->colors.inactive_workspace_text);
free(bar->colors.urgent_workspace_border);
free(bar->colors.urgent_workspace_bg);
free(bar->colors.urgent_workspace_text);
free(bar->colors.binding_mode_border);
free(bar->colors.binding_mode_bg);
free(bar->colors.binding_mode_text);
free(bar);
}
struct bar_config *default_bar_config(void) {
struct bar_config *bar = NULL;
bar = calloc(1, sizeof(struct bar_config));
if (!bar) {
return NULL;
}
bar->outputs = NULL;
bar->position = strdup("bottom");
bar->pango_markup = false;
bar->swaybar_command = NULL;
bar->font = NULL;
bar->height = -1;
bar->workspace_buttons = true;
bar->wrap_scroll = false;
bar->separator_symbol = NULL;
bar->strip_workspace_numbers = false;
bar->binding_mode_indicator = true;
bar->verbose = false;
bar->pid = 0;
if (!(bar->mode = strdup("dock"))) {
goto cleanup;
}
if (!(bar->hidden_state = strdup("hide"))) {
goto cleanup;
}
if (!(bar->bindings = create_list())) {
goto cleanup;
}
// set default colors
if (!(bar->colors.background = strndup("#000000ff", 9))) {
goto cleanup;
}
if (!(bar->colors.statusline = strndup("#ffffffff", 9))) {
goto cleanup;
}
if (!(bar->colors.separator = strndup("#666666ff", 9))) {
goto cleanup;
}
if (!(bar->colors.focused_workspace_border = strndup("#4c7899ff", 9))) {
goto cleanup;
}
if (!(bar->colors.focused_workspace_bg = strndup("#285577ff", 9))) {
goto cleanup;
}
if (!(bar->colors.focused_workspace_text = strndup("#ffffffff", 9))) {
goto cleanup;
}
if (!(bar->colors.active_workspace_border = strndup("#333333ff", 9))) {
goto cleanup;
}
if (!(bar->colors.active_workspace_bg = strndup("#5f676aff", 9))) {
goto cleanup;
}
if (!(bar->colors.active_workspace_text = strndup("#ffffffff", 9))) {
goto cleanup;
}
if (!(bar->colors.inactive_workspace_border = strndup("#333333ff", 9))) {
goto cleanup;
}
if (!(bar->colors.inactive_workspace_bg = strndup("#222222ff", 9))) {
goto cleanup;
}
if (!(bar->colors.inactive_workspace_text = strndup("#888888ff", 9))) {
goto cleanup;
}
if (!(bar->colors.urgent_workspace_border = strndup("#2f343aff", 9))) {
goto cleanup;
}
if (!(bar->colors.urgent_workspace_bg = strndup("#900000ff", 9))) {
goto cleanup;
}
if (!(bar->colors.urgent_workspace_text = strndup("#ffffffff", 9))) {
goto cleanup;
}
// if the following colors stay undefined, they fall back to background,
// statusline, separator and urgent_workspace_*.
bar->colors.focused_background = NULL;
bar->colors.focused_statusline = NULL;
bar->colors.focused_separator = NULL;
bar->colors.binding_mode_border = NULL;
bar->colors.binding_mode_bg = NULL;
bar->colors.binding_mode_text = NULL;
list_add(config->bars, bar);
return bar;
cleanup:
free_bar_config(bar);
return NULL;
}
static void invoke_swaybar(struct bar_config *bar) {
// Pipe to communicate errors
int filedes[2];
if (pipe(filedes) == -1) {
wlr_log(WLR_ERROR, "Pipe setup failed! Cannot fork into bar");
return;
}
bar->pid = fork();
if (bar->pid == 0) {
setpgid(0, 0);
close(filedes[0]);
sigset_t set;
sigemptyset(&set);
sigprocmask(SIG_SETMASK, &set, NULL);
// run custom swaybar
size_t len = snprintf(NULL, 0, "%s -b %s",
bar->swaybar_command ? bar->swaybar_command : "swaybar",
bar->id);
char *command = malloc(len + 1);
if (!command) {
const char msg[] = "Unable to allocate swaybar command string";
size_t msg_len = sizeof(msg);
if (write(filedes[1], &msg_len, sizeof(size_t))) {};
if (write(filedes[1], msg, msg_len)) {};
close(filedes[1]);
exit(1);
}
snprintf(command, len + 1, "%s -b %s",
bar->swaybar_command ? bar->swaybar_command : "swaybar",
bar->id);
char *const cmd[] = { "sh", "-c", command, NULL, };
close(filedes[1]);
execvp(cmd[0], cmd);
exit(1);
}
wlr_log(WLR_DEBUG, "Spawned swaybar %d", bar->pid);
close(filedes[0]);
size_t len;
if (read(filedes[1], &len, sizeof(size_t)) == sizeof(size_t)) {
char *buf = malloc(len);
if(!buf) {
wlr_log(WLR_ERROR, "Cannot allocate error string");
return;
}
if (read(filedes[1], buf, len)) {
wlr_log(WLR_ERROR, "%s", buf);
}
free(buf);
}
close(filedes[1]);
}
void load_swaybar(struct bar_config *bar) {
if (bar->pid != 0) {
terminate_swaybar(bar->pid);
}
wlr_log(WLR_DEBUG, "Invoking swaybar for bar id '%s'", bar->id);
invoke_swaybar(bar);
}
void load_swaybars(void) {
for (int i = 0; i < config->bars->length; ++i) {
struct bar_config *bar = config->bars->items[i];
load_swaybar(bar);
}
}
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