text: /*
   * Copyright (C) 2019 Apple 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:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "NavigatorClipboard.h"
  
  #include "Clipboard.h"
  #include "Navigator.h"
  #include <wtf/StdLibExtras.h>
  
  namespace WebCore {
  
  NavigatorClipboard::NavigatorClipboard(Navigator& navigator)
      : m_navigator(navigator)
  {
  }
  
  NavigatorClipboard::~NavigatorClipboard() = default;
  
  RefPtr<Clipboard> NavigatorClipboard::clipboard(Navigator& navigator)
  {
      return NavigatorClipboard::from(navigator)->clipboard();
  }
  
  RefPtr<Clipboard> NavigatorClipboard::clipboard()
  {
      if (!m_clipboard)
          m_clipboard = Clipboard::create(m_navigator);
      return m_clipboard;
  }
  
  NavigatorClipboard* NavigatorClipboard::from(Navigator& navigator)
  {
      auto* supplement = static_cast<NavigatorClipboard*>(Supplement<Navigator>::from(&navigator, supplementName()));
      if (!supplement) {
          auto newSupplement = makeUnique<NavigatorClipboard>(navigator);
          supplement = newSupplement.get();
          provideTo(&navigator, supplementName(), WTFMove(newSupplement));
      }
      return supplement;
  }
  
  const char* NavigatorClipboard::supplementName()
  {
      return "NavigatorClipboard";
  }
  
  }
  