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#include <libgen.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <errno.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "sway/swaynag.h"
#include "log.h"
#include "stringop.h"
static const char *bg_options[] = {
"stretch",
"center",
"fill",
"fit",
"tile",
};
static bool validate_color(const char *color) {
if (strlen(color) != 7 || color[0] != '#') {
return false;
}
char *ptr = NULL;
strtol(&color[1], &ptr, 16);
return *ptr == '\0';
}
struct cmd_results *output_cmd_background(int argc, char **argv) {
if (!config->handler_context.output_config) {
return cmd_results_new(CMD_FAILURE, "Missing output config");
}
if (!argc) {
return cmd_results_new(CMD_INVALID,
"Missing background file or color specification.");
}
if (argc < 2) {
return cmd_results_new(CMD_INVALID,
"Missing background scaling mode or `solid_color`.");
}
struct output_config *output = config->handler_context.output_config;
if (strcasecmp(argv[1], "solid_color") == 0) {
if (!validate_color(argv[0])) {
return cmd_results_new(CMD_INVALID,
"Colors should be of the form #RRGGBB");
}
output->background = strdup(argv[0]);
output->background_option = strdup("solid_color");
output->background_fallback = NULL;
argc -= 2; argv += 2;
} else {
bool valid = false;
char *mode;
size_t j;
for (j = 0; j < (size_t)argc; ++j) {
mode = argv[j];
size_t n = sizeof(bg_options) / sizeof(char *);
for (size_t k = 0; k < n; ++k) {
if (strcasecmp(mode, bg_options[k]) == 0) {
valid = true;
break;
}
}
if (valid) {
break;
}
}
if (!valid) {
return cmd_results_new(CMD_INVALID,
"Missing background scaling mode.");
}
if (j == 0) {
return cmd_results_new(CMD_INVALID, "Missing background file");
}
char *src = join_args(argv, j);
if (!expand_path(&src)) {
struct cmd_results *cmd_res = cmd_results_new(CMD_INVALID,
"Invalid syntax (%s)", src);
free(src);
return cmd_res;
}
if (!src) {
sway_log(SWAY_ERROR, "Failed to allocate expanded path");
return cmd_results_new(CMD_FAILURE, "Unable to allocate resource");
}
if (config->reading && *src != '/') {
// src file is inside configuration dir
char *conf = strdup(config->current_config_path);
if (!conf) {
sway_log(SWAY_ERROR, "Failed to duplicate string");
free(src);
return cmd_results_new(CMD_FAILURE,
"Unable to allocate resources");
}
char *conf_path = dirname(conf);
char *real_src = malloc(strlen(conf_path) + strlen(src) + 2);
if (!real_src) {
free(src);
free(conf);
sway_log(SWAY_ERROR, "Unable to allocate memory");
return cmd_results_new(CMD_FAILURE,
"Unable to allocate resources");
}
snprintf(real_src, strlen(conf_path) + strlen(src) + 2, "%s/%s", conf_path, src);
free(src);
free(conf);
src = real_src;
}
bool can_access = access(src, F_OK) != -1;
if (!can_access) {
sway_log_errno(SWAY_ERROR, "Unable to access background file '%s'",
src);
config_add_swaynag_warning("Unable to access background file '%s'",
src);
struct cmd_results *result = cmd_results_new(CMD_FAILURE,
"unable to access background file '%s'", src);
free(src);
return result;
} else {
output->background = src;
output->background_option = strdup(mode);
}
argc -= j + 1; argv += j + 1;
output->background_fallback = NULL;
if (argc && *argv[0] == '#') {
if (!validate_color(argv[0])) {
return cmd_results_new(CMD_INVALID,
"fallback color should be of the form #RRGGBB");
}
output->background_fallback = strdup(argv[0]);
argc--; argv++;
if (!can_access) {
output->background = output->background_fallback;
output->background_option = strdup("solid_color");
output->background_fallback = NULL;
}
}
}
config->handler_context.leftovers.argc = argc;
config->handler_context.leftovers.argv = argv;
return NULL;
}
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