Implement UIEvent.sourceDevice

Source/core/events/UIEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple 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 UIEvent_h
 #define UIEvent_h
 
 #include "core/CoreExport.h"
 #include "core/events/Event.h"
 #include "core/events/EventDispatchMediator.h"
+#include "core/events/InputDevice.h"
 #include "core/events/UIEventInit.h"
 #include "core/frame/DOMWindow.h"
 
+#include <stdlib.h>

[tdresser, 2015/06/01 17:36:46]

What's stdlib being used for?

[lanwei, 2015/06/02 14:08:30]

Done.

+
 namespace blink {
 
 // FIXME: Get rid of this typedef.
 typedef DOMWindow AbstractView;
 
 class CORE_EXPORT UIEvent : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<UIEvent> create()
     {
         return adoptRefWillBeNoop(new UIEvent);
     }
     static PassRefPtrWillBeRawPtr<UIEvent> create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view, int detail)
     {
         return adoptRefWillBeNoop(new UIEvent(type, canBubble, cancelable, view, detail));
     }
     static PassRefPtrWillBeRawPtr<UIEvent> create(const AtomicString& type, const UIEventInit& initializer)
     {
         return adoptRefWillBeNoop(new UIEvent(type, initializer));
     }
     virtual ~UIEvent();
 
     void initUIEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView>, int detail);
 
     AbstractView* view() const { return m_view.get(); }
     int detail() const { return m_detail; }
+    InputDevice* sourceDevice() const
+    {
+        return m_sourceDevice ? m_sourceDevice.get() : InputDevice::create().get();
+    }
 
     virtual const AtomicString& interfaceName() const override;
     virtual bool isUIEvent() const override final;
 
     virtual int keyCode() const;
     virtual int charCode() const;
 
     virtual int layerX();
     virtual int layerY();
 
     virtual int pageX() const;
     virtual int pageY() const;
 
     virtual int which() const;
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     UIEvent();
     UIEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView>, int detail);
     UIEvent(const AtomicString&, const UIEventInit&);
 
 private:
     RefPtrWillBeMember<AbstractView> m_view;
     int m_detail;
+    RefPtrWillBeMember<InputDevice> m_sourceDevice;
 };
 
 } // namespace blink
 
 #endif // UIEvent_h