swayfx/sway/commands/bar/id.c

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#define _POSIX_C_SOURCE 200809L
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#include <string.h>
#include "sway/commands.h"
#include "log.h"
struct cmd_results *bar_cmd_id(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "id", EXPECTED_EQUAL_TO, 1))) {
return error;
}
const char *name = argv[0];
const char *oldname = config->current_bar->id;
if (strcmp(name, oldname) == 0) {
return cmd_results_new(CMD_SUCCESS, NULL); // NOP
} else if (strcmp(name, "id") == 0) {
return cmd_results_new(CMD_INVALID, "id cannot be 'id'");
}
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// check if id is used by a previously defined bar
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for (int i = 0; i < config->bars->length; ++i) {
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struct bar_config *find = config->bars->items[i];
if (strcmp(name, find->id) == 0 && config->current_bar != find) {
return cmd_results_new(CMD_FAILURE,
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"Id '%s' already defined for another bar. Id unchanged (%s).",
name, oldname);
}
}
sway_log(SWAY_DEBUG, "Renaming bar: '%s' to '%s'", oldname, name);
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// free old bar id
free(config->current_bar->id);
config->current_bar->id = strdup(name);
return cmd_results_new(CMD_SUCCESS, NULL);
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}