Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/events/EventTarget.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 15 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #include "sky/engine/config.h"
 #include "sky/engine/core/events/EventTarget.h"
 
 #include "gen/sky/platform/RuntimeEnabledFeatures.h"
-#include "sky/engine/bindings/core/v8/ExceptionState.h"
+#include "sky/engine/bindings2/exception_state.h"
 #include "sky/engine/core/dom/Document.h"
 #include "sky/engine/core/dom/ExceptionCode.h"
 #include "sky/engine/core/dom/ExecutionContext.h"
 #include "sky/engine/core/editing/Editor.h"
 #include "sky/engine/core/events/Event.h"
 #include "sky/engine/core/frame/LocalDOMWindow.h"
 #include "sky/engine/platform/EventDispatchForbiddenScope.h"
+#include "sky/engine/tonic/dart_gc_visitor.h"
 #include "sky/engine/wtf/StdLibExtras.h"
 #include "sky/engine/wtf/Vector.h"
 
 using namespace WTF;
 
 namespace blink {
 
 EventTargetData::EventTargetData()
 {
 }
 
 EventTargetData::~EventTargetData()
 {
 }
 
 EventTarget::EventTarget()
 {
 }
 
 EventTarget::~EventTarget()
 {
 }
 
+void EventTarget::AcceptDartGCVisitor(DartGCVisitor& visitor) const
+{
+    if (!visitor.have_found_set())
+        visitor.AddToSetForRoot(this, dart_wrapper());
+    EventListenerIterator iterator(this);
+    while (EventListener* listener = iterator.nextListener())
+        listener->AcceptDartGCVisitor(visitor);
+    DartWrappable::AcceptDartGCVisitor(visitor);
+}
+
 Node* EventTarget::toNode()
 {
     return 0;
 }
 
 LocalDOMWindow* EventTarget::toDOMWindow()
 {
     return 0;
 }
 
@@ skipping 40 matching lines @@
         if (indexOfRemovedListener <= firingIterator.iterator)
             --firingIterator.iterator;
     }
 
     return true;
 }
 
 bool EventTarget::dispatchEvent(PassRefPtr<Event> event, ExceptionState& exceptionState)
 {
     if (!event) {
-        exceptionState.throwDOMException(InvalidStateError, "The event provided is null.");
+        exceptionState.ThrowDOMException(InvalidStateError, "The event provided is null.");
         return false;
     }
     if (event->type().isEmpty()) {
-        exceptionState.throwDOMException(InvalidStateError, "The event provided is uninitialized.");
+        exceptionState.ThrowDOMException(InvalidStateError, "The event provided is uninitialized.");
         return false;
     }
     if (event->isBeingDispatched()) {
-        exceptionState.throwDOMException(InvalidStateError, "The event is already being dispatched.");
+        exceptionState.ThrowDOMException(InvalidStateError, "The event is already being dispatched.");
         return false;
     }
 
     if (!executionContext())
         return false;
 
     return dispatchEvent(event);
 }
 
 bool EventTarget::dispatchEvent(PassRefPtr<Event> event)
@@ skipping 92 matching lines @@
     // they have one less listener to invoke.
     if (d->firingEventIterators) {
         for (size_t i = 0; i < d->firingEventIterators->size(); ++i) {
             d->firingEventIterators->at(i).iterator = 0;
             d->firingEventIterators->at(i).end = 0;
         }
     }
 }
 
 } // namespace blink