Fix dispatch event for capturing/bubbling phases for own target

The standard is not very clear about that.

On the general description of
events (https://dom.spec.whatwg.org/#events) it says "all the object’s
inclusive ancestor event listeners whose capture is true are invoked"
for capturing and bubbling phases. So the target itself *should be included*.

But later when describing the
phases (https://dom.spec.whatwg.org/#dom-event-eventphase) it says
that capturing phase is _before_ the target and bubbling phase is
_after_ the target. So the target itself *should not be included*.

The behavior of modern web browsers (Chrome/Firefox) do not include
the target in capturing/bubbling phase so let's follow that.

Signed-off-by: Francis Bouvier <[email protected]>

src/events/event_target.c

@@ -227,11 +227,15 @@ dom_exception _dom_event_target_dispatch(dom_event_target *et,
 			if (dom_string_isequal(le->type, evt->type)) {
 				assert(le->listener->handler != NULL);
 
+				bool ancestor = evt->current != evt->target;
+
 				if ((le->capture &&
-				     phase == DOM_CAPTURING_PHASE) ||
+				     phase == DOM_CAPTURING_PHASE &&
+				     ancestor) ||
 				    (le->capture == false &&
 				     evt->bubble &&
-				     phase == DOM_BUBBLING_PHASE) ||
+				     phase == DOM_BUBBLING_PHASE &&
+				     ancestor) ||
 				    (evt->target == evt->current &&
 				     phase == DOM_AT_TARGET)) {
 					le->listener->handler(evt,