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, 18 insertions, 2 deletions

diff --git a/swaybar/config.c b/swaybar/config.c
index d4cc9b1a..0071c7f9 100644
--- a/swaybar/config.c
+++ b/swaybar/config.c
@@ -78,6 +78,7 @@ struct swaybar_config *init_config(void) {
 
 #if HAVE_TRAY
         config->tray_padding = 2;
+        wl_list_init(&config->tray_bindings);
 #endif
 
         return config;
@@ -91,6 +92,16 @@ static void free_binding(struct swaybar_binding *binding) {
         free(binding);
 }
 
+#if HAVE_TRAY
+static void free_tray_binding(struct tray_binding *binding) {
+        if (!binding) {
+                return;
+        }
+        free(binding->command);
+        free(binding);
+}
+#endif
+
 void free_config(struct swaybar_config *config) {
         free(config->status_command);
         free(config->font);
@@ -111,9 +122,14 @@ void free_config(struct swaybar_config *config) {
         }
 #if HAVE_TRAY
         list_free_items_and_destroy(config->tray_outputs);
-        for (int i = 0; i < 10; ++i) {
-                free(config->tray_bindings[i]);
+
+        struct tray_binding *tray_bind = NULL, *tmp_tray_bind = NULL;
+        wl_list_for_each_safe(tray_bind, tmp_tray_bind, &config->tray_bindings,
+                        link) {
+                wl_list_remove(&tray_bind->link);
+                free_tray_binding(tray_bind);
         }
+
         free(config->icon_theme);
 #endif
         free(config);