Things to unfork.

Source/WebCore/bindings/dart/DartEventListener.cpp

Index: Source/WebCore/bindings/dart/DartEventListener.cpp
diff --git a/Source/WebCore/bindings/dart/DartEventListener.cpp b/Source/WebCore/bindings/dart/DartEventListener.cpp
deleted file mode 100644
index 683b37468c2e7593449d04b4b8378143f68ebeaf..0000000000000000000000000000000000000000
--- a/Source/WebCore/bindings/dart/DartEventListener.cpp
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY 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 "config.h"
-#include "DartEventListener.h"
-
-#include "DartController.h"
-#include "DartEvent.h"
-#include "DartIsolateState.h"
-#include "DartUtilities.h"
-#include "ScriptExecutionContext.h"
-
-namespace WebCore {
-
-DartEventListener::DartEventListener(Dart_Isolate isolate, Dart_Handle listener)
-    : EventListener(JSEventListenerType)
-    , m_listener(0)
-{
-    setListenerObject(isolate, listener);
-}
-
-DartEventListener::~DartEventListener()
-{
-    disposeListenerObject();
-}
-
-PassRefPtr<DartEventListener> DartEventListener::createOrFetch(Dart_Handle listener)
-{
-    ASSERT(Dart_IsClosure(listener));
-    DartEventListener* nativeListener = reinterpret_cast<DartEventListener*>(Dart_ClosureSmrck(listener));
-    if (nativeListener)
-        return nativeListener;
-    return adoptRef(new DartEventListener(Dart_CurrentIsolate(), listener));
-}
-
-void DartEventListener::handleEvent(ScriptExecutionContext* context, Event* event)
-{
-    // Don't reenter Dart if execution was terminated in this instance of Dart.
-    // FIXME: we probably need isDartExecutionForbidden.
-    if (context->isJSExecutionForbidden())
-        return;
-
-    // FIXME: Validate that this isolate hasn't been shutdown.
-    DartIsolateState::push(m_isolate);
-    ASSERT(event);
-
-    // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it.
-    // See issue 889829.
-    RefPtr<DartEventListener> protect(this);
-
-    {
-      DartApiScope scope;
-
-      // Get the Dart wrapper for the event object.
-      Dart_Handle dartEvent = toDartValue(event);
-      ASSERT(dartEvent);
-
-      invokeEventHandler(context, event, dartEvent);
-    }
-    DartIsolateState::pop();
-}
-
-void DartEventListener::invokeEventHandler(ScriptExecutionContext* context, Event* event, Dart_Handle dartEvent)
-{
-    if (!dartEvent)
-        return;
-
-    // FIXME: consider if DateExtension manipulations are necessary and if yes (most probably),
-    // factor out common logic. For example by introducing EventProcessScope RAII to manage DateExtension.
-    Dart_Handle result = callListenerFunction(context, dartEvent, event);
-    if (Dart_IsError(result)) {
-        DartUtilities::reportProblem(context, result);
-        return;
-    }
-
-    if (Dart_IsString(result)) {
-        if (event->storesResultAsString())
-            event->storeResult(DartUtilities::dartStringToString(result));
-    }
-}
-
-Dart_Handle DartEventListener::callListenerFunction(ScriptExecutionContext* context, Dart_Handle dartEvent, Event* event)
-{
-    if (!m_listener)
-        return Dart_Error("No listener to call");
-
-    DartController* dartController = DartController::retrieve(context);
-    if (!dartController)
-        return Dart_Error("Internal error: failed to fetch Dart controller");
-
-    Dart_Handle parameters[1] = { dartEvent };
-    Dart_Handle result = dartController->callFunction(m_listener, 1, parameters);
-    if (Dart_IsError(result))
-        DartUtilities::reportProblem(context, result);
-    return result;
-}
-
-void DartEventListener::setListenerObject(Dart_Isolate isolate, Dart_Handle listener)
-{
-    disposeListenerObject();
-    ASSERT(Dart_IsClosure(listener));
-    m_isolate = isolate;
-    // FIXME: Validate isolate.
-    ASSERT(m_isolate);
-    // NOTE: DartEventListener destructor will clean wild smrck so
-    // Dart wrapper never keeps the pointer to destroyed object.
-    ASSERT(!Dart_ClosureSmrck(listener));
-    Dart_ClosureSetSmrck(listener, reinterpret_cast<int64_t>(this));
-
-    m_listener = Dart_NewPersistentHandle(listener);
-}
-
-void DartEventListener::disposeListenerObject()
-{
-    if (!m_listener)
-        return;
-
-    DartIsolateState::push(m_isolate);
-
-    {
-        DartApiScope scope;
-
-        ASSERT(this == reinterpret_cast<DartEventListener*>(Dart_ClosureSmrck(m_listener)));
-
-        // DartEventListener is going to be disposed, remove a pointer to it from Dart wrapper.
-        Dart_ClosureSetSmrck(m_listener, 0);
-
-        // FIXME: implement persistent handles tracking a la V8GCController::unregisterGlobalHandle.
-        Dart_DeletePersistentHandle(m_listener);
-        m_listener = 0;
-    }
-
-    // FIXME: We probably should ref count the isolate and
-    // shutdown if this is the last one.  This can happen if the
-    // isolate sets a listener on another frame and its original
-    // frame is closed.
-    DartIsolateState::pop();
-}
-
-}