swayfx/sway/commands/input/scroll_button.c
2018-09-23 19:56:52 -04:00

38 lines
1.1 KiB
C

#include <string.h>
#include <strings.h>
#include <errno.h>
#include "sway/config.h"
#include "sway/commands.h"
#include "sway/input/input-manager.h"
struct cmd_results *input_cmd_scroll_button(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "scroll_button", EXPECTED_AT_LEAST, 1))) {
return error;
}
struct input_config *ic = config->handler_context.input_config;
if (!ic) {
return cmd_results_new(CMD_FAILURE, "scroll_button",
"No input device defined.");
}
errno = 0;
char *endptr;
int scroll_button = strtol(*argv, &endptr, 10);
if (endptr == *argv && scroll_button == 0) {
return cmd_results_new(CMD_INVALID, "scroll_button",
"Scroll button identifier must be an integer.");
}
if (errno == ERANGE) {
return cmd_results_new(CMD_INVALID, "scroll_button",
"Scroll button identifier out of range.");
}
if (scroll_button < 0) {
return cmd_results_new(CMD_INVALID, "scroll_button",
"Scroll button identifier cannot be negative.");
}
ic->scroll_button = scroll_button;
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}