text: /*
   * Copyright (C) 2009 Google 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:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * 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.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
   * OWNER OR 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.
   */
  
  #ifndef WebNotificationPresenter_h
  #define WebNotificationPresenter_h
  
  #include "../platform/WebString.h"
  
  namespace blink {
  
  class WebDocument;
  class WebNotification;
  class WebNotificationPermissionCallback;
  class WebSecurityOrigin;
  
  // Provides the services to show desktop notifications to the user.
  class WebNotificationPresenter {
  public:
      enum Permission {
          PermissionAllowed,     // User has allowed permission to the origin.
          PermissionNotAllowed,  // User has not taken an action on the origin (defaults to not allowed).
          PermissionDenied       // User has explicitly denied permission from the origin.
      };
  
      // Shows a notification.
      virtual bool show(const WebNotification&) = 0;
  
      // Closes a notification previously shown, and removes it if being shown.
      // FIXME: Remove cancel() once Chromium updated to the new name, and make close() pure virtual.
      virtual void close(const WebNotification&) { }
      virtual void cancel(const WebNotification&) = 0;
  
      // Indiciates that the notification object subscribed to events for a previously shown notification is
      // being destroyed.  Does _not_ remove the notification if being shown, but detaches it from receiving events.
      virtual void objectDestroyed(const WebNotification&) = 0;
  
      // Checks the permission level for the given origin.
      virtual Permission checkPermission(const WebSecurityOrigin&) = 0;
  };
  
  } // namespace blink
  
  #endif
  