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, 5 insertions, 4 deletions

diff --git a/sway/sway-input.5.scd b/sway/sway-input.5.scd
index 820194a9..1b2255b8 100644
--- a/sway/sway-input.5.scd
+++ b/sway/sway-input.5.scd
@@ -105,10 +105,11 @@ The following commands may only be used in the configuration file.
 *input* <identifier> repeat\_rate <characters per second>
         Sets the frequency of key repeats once the repeat\_delay has passed.
 
-*input* <identifier> scroll\_button <button\_identifier>
-        Sets button used for scroll\_method on\_button\_down. The button identifier
-        can be obtained from `libinput debug-events`.
-        If set to 0, it disables the scroll\_button on\_button\_down.
+*input* <identifier> scroll\_button disable|button[1-3,8,9]|<event-code-or-name>
+        Sets the button used for scroll\_method on\_button\_down. The button can
+        be given as an event name or code, which can be obtained from `libinput
+        debug-events`, or as a x11 mouse button (button[1-3,8,9]). If set to
+        _disable_, it disables the scroll\_method on\_button\_down.
 
 *input* <identifier> scroll\_factor <floating point value>
         Changes the scroll factor for the specified input device. Scroll speed will