1 files changed, 44 insertions, 0 deletions

diff --git a/sway/commands/input/scroll_button.c b/sway/commands/input/scroll_button.c
new file mode 100644
index 00000000..350fcca2
--- /dev/null
+++ b/sway/commands/input/scroll_button.c
@@ -0,0 +1,44 @@
+#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 *current_input_config =
+                config->handler_context.input_config;
+        if (!current_input_config) {
+                return cmd_results_new(CMD_FAILURE, "scroll_button",
+                        "No input device defined.");
+        }
+        struct input_config *new_config =
+                new_input_config(current_input_config->identifier);
+
+        errno = 0;
+        char *endptr;
+        int scroll_button = strtol(*argv, &endptr, 10);
+        if (endptr == *argv && scroll_button == 0) {
+                free_input_config(new_config);
+                return cmd_results_new(CMD_INVALID, "scroll_button",
+                                "Scroll button identifier must be an integer.");
+        }
+        if (errno == ERANGE) {
+                free_input_config(new_config);
+                return cmd_results_new(CMD_INVALID, "scroll_button",
+                                "Scroll button identifier out of range.");
+        }
+        if (scroll_button < 0) {
+                free_input_config(new_config);
+                return cmd_results_new(CMD_INVALID, "scroll_button",
+                                "Scroll button identifier cannot be negative.");
+        }
+        new_config->scroll_button = scroll_button;
+
+        apply_input_config(new_config);
+        return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}