proxy: add a method to query the interface type

lib/wp/proxy.c

@@ -186,6 +186,29 @@ wp_proxy_get_bound_id (WpProxy * self)
   return priv->pw_proxy ? pw_proxy_get_bound_id (priv->pw_proxy) : SPA_ID_INVALID;
 }
 
+/**
+ * wp_proxy_get_interface_type:
+ * @self: the proxy
+ * @version: (out) (optional): the version of the interface
+ *
+ * Returns: the PipeWire type of the interface that is being proxied
+ */
+const gchar *
+wp_proxy_get_interface_type (WpProxy * self, guint32 * version)
+{
+  g_return_val_if_fail (WP_IS_PROXY (self), NULL);
+
+  WpProxyPrivate *priv = wp_proxy_get_instance_private (self);
+  if (priv->pw_proxy)
+    return pw_proxy_get_type (priv->pw_proxy, version);
+  else {
+    WpProxyClass *klass = WP_PROXY_GET_CLASS (self);
+    if (version)
+      *version = klass->pw_iface_version;
+    return klass->pw_iface_type;
+  }
+}
+
 /**
  * wp_proxy_get_pw_proxy:
  *

lib/wp/proxy.h

@@ -91,6 +91,9 @@ struct _WpProxyClass
 WP_API
 guint32 wp_proxy_get_bound_id (WpProxy * self);
 
+WP_API
+const gchar * wp_proxy_get_interface_type (WpProxy * self, guint32 * version);
+
 WP_API
 struct pw_proxy * wp_proxy_get_pw_proxy (WpProxy * self);
 

modules/module-lua-scripting/api.c

@@ -238,6 +238,24 @@ static const luaL_Reg object_methods[] = {
   { NULL, NULL }
 };
 
+/* WpProxy */
+
+static int
+proxy_get_interface_type (lua_State *L)
+{
+  WpProxy * p = wplua_checkobject (L, 1, WP_TYPE_PROXY);
+  guint32 version = 0;
+  const gchar *type = wp_proxy_get_interface_type (p, &version);
+  lua_pushstring (L, type);
+  lua_pushinteger (L, version);
+  return 2;
+}
+
+static const luaL_Reg proxy_methods[] = {
+  { "get_interface_type", proxy_get_interface_type },
+  { NULL, NULL }
+};
+
 /* WpGlobalProxy */
 
 static int
@@ -937,6 +955,8 @@ wp_lua_scripting_api_init (lua_State *L)
 
   wplua_register_type_methods (L, WP_TYPE_OBJECT,
       NULL, object_methods);
+  wplua_register_type_methods (L, WP_TYPE_PROXY,
+      NULL, proxy_methods);
   wplua_register_type_methods (L, WP_TYPE_GLOBAL_PROXY,
       NULL, global_proxy_methods);
   wplua_register_type_methods (L, WP_TYPE_OBJECT_INTEREST,