// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef AURA_EVENT_H_
#define AURA_EVENT_H_
#pragma once

#include "base/basictypes.h"
#include "base/time.h"
#include "ui/base/events.h"
#include "ui/base/keycodes/keyboard_codes.h"
#include "ui/gfx/point.h"

namespace aura {

#if defined(OS_WIN)
typedef MSG NativeEvent;
#elif defined(USE_X11)
typedef union _XEvent XEvent;
typedef XEvent* NativeEvent;
#endif

class Event {
 public:
  const NativeEvent& native_event() const { return native_event_; }
  ui::EventType type() const { return type_; }
  const base::Time& time_stamp() const { return time_stamp_; }
  int flags() const { return flags_; }

 protected:
  Event(ui::EventType type, int flags);
  Event(NativeEvent native_event, ui::EventType type, int flags);
  Event(const Event& copy);

 private:
  void operator=(const Event&);

  // Safely initializes the native event members of this class.
  void Init();
  void InitWithNativeEvent(NativeEvent native_event);

  NativeEvent native_event_;
  ui::EventType type_;
  base::Time time_stamp_;
  int flags_;
};

class LocatedEvent : public Event {
 public:
  int x() const { return location_.x(); }
  int y() const { return location_.y(); }
  gfx::Point location() const { return location_; }

 protected:
  explicit LocatedEvent(NativeEvent native_event);

  gfx::Point location_;

 private:
  DISALLOW_COPY_AND_ASSIGN(LocatedEvent);
};

class MouseEvent : public LocatedEvent {
 public:
  explicit MouseEvent(NativeEvent native_event);

 private:
  DISALLOW_COPY_AND_ASSIGN(MouseEvent);
};


}  // namespace aura

#endif  // AURA_EVENT_H_