event-target: add a type field

include/dom/events/event_target.h

@@ -17,7 +17,14 @@ struct dom_event;
 
 struct listener_entry;
 
-/* Event target is a mixin interface, thus has no concrete implementation. 
+/**
+ * Type of a DOM event_target
+ */
+typedef enum {
+	DOM_EVENT_TARGET_NODE		= 1,
+} dom_event_target_type;
+
+/* Event target is a mixin interface, thus has no concrete implementation.
  * Subclasses must provide implementations of the event target methods. */
 typedef struct dom_event_target {
 	void *vtable;
@@ -51,6 +58,9 @@ typedef struct dom_event_target_vtable {
 			struct listener_entry *cur,
 			struct listener_entry **next,
 			struct dom_event_listener **listener);
+	dom_exception (*dom_event_target_get_type)(
+			dom_event_target *et,
+			dom_event_target_type *result);
 } dom_event_target_vtable;
 
 static inline dom_exception dom_event_target_add_event_listener(
@@ -132,5 +142,13 @@ static inline dom_exception dom_event_iter_event_listener(
 		(struct listener_entry *) (c), (struct listener_entry **) (n),\
 		(struct dom_event_listener **) (l))
 
+static inline dom_exception dom_event_target_get_type(dom_event_target *et,
+		dom_event_target_type *result)
+{
+	return ((dom_event_target_vtable *) et->vtable)
+		->dom_event_target_get_type(et, result);
+}
+#define dom_event_target_get_type(et, r) dom_event_target_get_type( \
+		(dom_event_target *) (et), (dom_event_target_type *) (r))
 #endif
 

src/core/node.c

@@ -2645,3 +2645,11 @@ dom_exception _dom_node_iter_event_listener(dom_event_target *et,
 	return _dom_event_target_iter_event_listener(
 		node_internal->eti, type, capture, cur, next, listener);
 }
+
+dom_exception _dom_node_event_target_get_type(dom_event_target *et,
+		dom_event_target_type *result)
+{
+	assert(et != NULL);
+	dom_node_internal *node_internal = (dom_node_internal *)et;
+	return _dom_event_target_get_type(node_internal->eti, result);
+}

src/core/node.h

@@ -108,6 +108,8 @@ dom_exception _dom_node_iter_event_listener(dom_event_target *et,
 	        dom_string *type, bool capture,
 		struct listener_entry *cur, struct listener_entry **next,
 		struct dom_event_listener **listener);
+dom_exception _dom_node_event_target_get_type(dom_event_target *et,
+		dom_event_target_type *result);
 
 /* The DOM Node's vtable methods */
 dom_exception _dom_node_get_node_name(dom_node_internal *node,
@@ -195,7 +197,8 @@ dom_exception _dom_node_get_user_data(const dom_node_internal *node,
 	_dom_node_dispatch_event, \
 	_dom_node_add_event_listener_ns, \
 	_dom_node_remove_event_listener_ns, \
-	_dom_node_iter_event_listener
+	_dom_node_iter_event_listener, \
+	_dom_node_event_target_get_type
 
 #define DOM_NODE_VTABLE \
 	_dom_node_try_destroy, \

src/events/event_target.c

@@ -323,3 +323,20 @@ dom_exception _dom_event_target_iter_event_listener(dom_event_target_internal et
 	}
 	return DOM_NO_ERR;
 }
+
+/**
+ * Retrieve the type of an event_target
+ *
+ * \param node    The eti to retrieve the type of
+ * \param result  Pointer to location to receive node type
+ * \return DOM_NO_ERR.
+ */
+dom_exception _dom_event_target_get_type(dom_event_target_internal eti,
+		dom_event_target_type *result)
+{
+	UNUSED(eti);
+
+	*result = DOM_EVENT_TARGET_NODE;
+
+	return DOM_NO_ERR;
+}

src/events/event_target.h

@@ -89,4 +89,7 @@ dom_exception _dom_event_target_iter_event_listener(dom_event_target_internal et
 		struct listener_entry *cur, struct listener_entry **next,
 		dom_event_listener **listener);
 
+dom_exception _dom_event_target_get_type(dom_event_target_internal eti,
+		dom_event_target_type *result);
+
 #endif