File: KeyboardEvent.h

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/*
 * 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, 2007, 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 KeyboardEvent_h
#define KeyboardEvent_h

#include "core/CoreExport.h"
#include "core/events/KeyboardEventInit.h"
#include "core/events/UIEventWithKeyState.h"
#include "public/platform/WebInputEvent.h"
#include <memory>

namespace blink {

class CORE_EXPORT KeyboardEvent final : public UIEventWithKeyState {
  DEFINE_WRAPPERTYPEINFO();

 public:
  enum KeyLocationCode {
    kDomKeyLocationStandard = 0x00,
    kDomKeyLocationLeft = 0x01,
    kDomKeyLocationRight = 0x02,
    kDomKeyLocationNumpad = 0x03
  };

  static KeyboardEvent* create() { return new KeyboardEvent; }

  static KeyboardEvent* create(const WebKeyboardEvent& webEvent,
                               LocalDOMWindow* domWindow) {
    return new KeyboardEvent(webEvent, domWindow);
  }

  static KeyboardEvent* create(ScriptState*,
                               const AtomicString& type,
                               const KeyboardEventInit&);

  KeyboardEvent(const AtomicString&, const KeyboardEventInit&);
  ~KeyboardEvent() override;

  void initKeyboardEvent(ScriptState*,
                         const AtomicString& type,
                         bool canBubble,
                         bool cancelable,
                         AbstractView*,
                         const String& keyIdentifier,
                         unsigned location,
                         bool ctrlKey,
                         bool altKey,
                         bool shiftKey,
                         bool metaKey);

  const String& code() const { return m_code; }
  const String& key() const { return m_key; }

  unsigned location() const { return m_location; }

  const WebKeyboardEvent* keyEvent() const { return m_keyEvent.get(); }

  int keyCode()
      const;  // key code for keydown and keyup, character for keypress
  int charCode() const;  // character code for keypress, 0 for keydown and keyup
  bool repeat() const { return modifiers() & PlatformEvent::IsAutoRepeat; }

  const AtomicString& interfaceName() const override;
  bool isKeyboardEvent() const override;
  int which() const override;
  bool isComposing() const { return m_isComposing; }

  DECLARE_VIRTUAL_TRACE();

 private:
  KeyboardEvent();
  KeyboardEvent(const WebKeyboardEvent&, LocalDOMWindow*);

  void initLocationModifiers(unsigned location);

  std::unique_ptr<WebKeyboardEvent> m_keyEvent;
  String m_code;
  String m_key;
  unsigned m_location;
  bool m_isComposing;
};

DEFINE_EVENT_TYPE_CASTS(KeyboardEvent);

}  // namespace blink

#endif  // KeyboardEvent_h