text: /*
   * 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, 2008, 2009, 2010 Apple Inc. All rights
   * reserved.
   * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
   * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
   * (http://www.torchmobile.com/)
   * Copyright (C) 2011 Google Inc. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #ifndef EventDispatcher_h
  #define EventDispatcher_h
  
  #include "core/dom/events/EventDispatchResult.h"
  #include "core/dom/events/SimulatedClickOptions.h"
  #include "platform/heap/Handle.h"
  #include "platform/wtf/RefPtr.h"
  
  namespace blink {
  
  class Event;
  class EventDispatchMediator;
  class EventDispatchHandlingState;
  class LocalFrameView;
  class Node;
  
  class EventDispatchHandlingState
      : public GarbageCollected<EventDispatchHandlingState> {
   public:
    DEFINE_INLINE_VIRTUAL_TRACE() {}
  };
  
  enum EventDispatchContinuation { kContinueDispatching, kDoneDispatching };
  
  class EventDispatcher {
    STACK_ALLOCATED();
  
   public:
    static DispatchEventResult DispatchEvent(Node&, EventDispatchMediator*);
    static void DispatchScopedEvent(Node&, EventDispatchMediator*);
  
    static void DispatchSimulatedClick(Node&,
                                       Event* underlying_event,
                                       SimulatedClickMouseEventOptions,
                                       SimulatedClickCreationScope);
  
    DispatchEventResult Dispatch();
    Node& GetNode() const { return *node_; }
    Event& GetEvent() const { return *event_; }
  
   private:
    EventDispatcher(Node&, Event*);
  
    EventDispatchContinuation DispatchEventPreProcess(
        Node* activation_target,
        EventDispatchHandlingState*&);
    EventDispatchContinuation DispatchEventAtCapturing();
    EventDispatchContinuation DispatchEventAtTarget();
    void DispatchEventAtBubbling();
    void DispatchEventPostProcess(Node* activation_target,
                                  EventDispatchHandlingState*);
  
    Member<Node> node_;
    Member<Event> event_;
    Member<LocalFrameView> view_;
  #if DCHECK_IS_ON()
    bool event_dispatched_ = false;
  #endif
  };
  
  }  // namespace blink
  
  #endif
  