Unregister all instances of a listener

Sometimes we register a listener a lot on an event target.  This change allows
us to pass NULL as the event type to the remove call in order to remove every
instance of the given listener, regardless of event type and capture vs.
bubble.

1 files changed, 12 insertions, 3 deletions

diff --git a/src/events/event_target.c b/src/events/event_target.c
index ef2dc83..4592fee 100644
--- a/src/events/event_target.c
+++ b/src/events/event_target.c
@@ -99,6 +99,9 @@ dom_exception _dom_event_target_add_event_listener(
 /**
  * Remove an EventListener from the EventTarget
  *
+ * (LibDOM extension: If type is NULL, remove all listener registrations
+ * regardless of type and cature)
+ *
  * \param et        The EventTarget object
  * \param type      The event type this listener is registered for 
  * \param listener  The listener object
@@ -114,9 +117,15 @@ dom_exception _dom_event_target_remove_event_listener(
 		struct listener_entry *le = eti->listeners;
 
 		do {
-			if (dom_string_isequal(le->type, type) &&
-					le->listener == listener &&
-					le->capture == capture) {
+			bool matches;
+			if (type == NULL) {
+				matches = (le->listener == listener);
+			} else {
+				matches = dom_string_isequal(le->type, type) &&
+					(le->listener == listener) &&
+					(le->capture == capture);
+			}
+			if (matches) {
 				if (le->list.next == &le->list) {
 					eti->listeners = NULL;
 				} else {