input_cmd_scroll_button: utilize mouse btn helpers

This modifies `input_cmd_scroll_button` to utilize the mouse button
helper `get_mouse_button` when parsing the button. x11 axis buttons are
not supported with this command and `CMD_INVALID` will be returned, but
all other x11 buttons, button event names, and button event codes should
be working

1 files changed, 18 insertions, 16 deletions

diff --git a/sway/commands/input/scroll_button.c b/sway/commands/input/scroll_button.c
index 1958f23c..d82a1fe1 100644
--- a/sway/commands/input/scroll_button.c
+++ b/sway/commands/input/scroll_button.c
@@ -1,9 +1,7 @@
-#include <string.h>
-#include <strings.h>
-#include <errno.h>
+#include <libevdev/libevdev.h>
 #include "sway/config.h"
 #include "sway/commands.h"
-#include "sway/input/input-manager.h"
+#include "sway/input/cursor.h"
 
 struct cmd_results *input_cmd_scroll_button(int argc, char **argv) {
         struct cmd_results *error = NULL;
@@ -16,22 +14,26 @@ struct cmd_results *input_cmd_scroll_button(int argc, char **argv) {
                         "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 (strcmp(*argv, "disable") == 0) {
+                ic->scroll_button = 0;
+                return cmd_results_new(CMD_SUCCESS, NULL, NULL);
         }
-        if (errno == ERANGE) {
+
+        char *message = NULL;
+        uint32_t button = get_mouse_button(*argv, &message);
+        if (message) {
+                error = cmd_results_new(CMD_INVALID, "scroll_button", message);
+                free(message);
+                return error;
+        } else if (button == SWAY_SCROLL_UP || button == SWAY_SCROLL_DOWN
+                        || button == SWAY_SCROLL_LEFT || button == SWAY_SCROLL_RIGHT) {
                 return cmd_results_new(CMD_INVALID, "scroll_button",
-                                "Scroll button identifier out of range.");
-        }
-        if (scroll_button < 0) {
+                                "X11 axis buttons are not supported for scroll_button");
+        } else if (!button) {
                 return cmd_results_new(CMD_INVALID, "scroll_button",
-                                "Scroll button identifier cannot be negative.");
+                                "Unknown button %s", *argv);
         }
-        ic->scroll_button = scroll_button;
+        ic->scroll_button = button;
 
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }