bar_cmd_tray_bind: Use mouse button helpers

This modifies `bar_cmd_tray_bindsym` to use `get_mouse_bindsym` for
parsing mouse buttons. This also introduces `bar_cmd_tray_bindcode`,
which will use `get_mouse_bindcode` for parsing mouse buttons. Like with
sway bindings, the two commands are encapsulated in a single file to
maximize shared code.

This also modifies tray bindings to work off of events codes rather than
x11 buttons, which allows for any mouse buttons to be used.

For `get_bar_config`, `event_code` has been added to the `tray_bindings`
section and will include to event code for the button. If the event code
can be mapped to a x11 button, `input_code` will still be the x11 button
number. Otherwise, `input_code` will be `0`.

1 files changed, 16 insertions, 0 deletions

diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 731e82ad..5eb44412 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -1237,3 +1237,19 @@ uint32_t get_mouse_button(const char *name, char **error) {
 	}
 	return button;
 }
+
+const char *get_mouse_button_name(uint32_t button) {
+	const char *name = libevdev_event_code_get_name(EV_KEY, button);
+	if (!name) {
+		if (button == SWAY_SCROLL_UP) {
+			name = "SWAY_SCROLL_UP";
+		} else if (button == SWAY_SCROLL_DOWN) {
+			name = "SWAY_SCROLL_DOWN";
+		} else if (button == SWAY_SCROLL_LEFT) {
+			name = "SWAY_SCROLL_LEFT";
+		} else if (button == SWAY_SCROLL_RIGHT) {
+			name = "SWAY_SCROLL_RIGHT";
+		}
+	}
+	return name;
+}