/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * 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.
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 * 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
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#ifndef AbstractWorker_h
#define AbstractWorker_h

#include "core/CoreExport.h"
#include "core/dom/ContextLifecycleObserver.h"
#include "core/dom/events/EventListener.h"
#include "core/dom/events/EventTarget.h"
#include "platform/heap/Handle.h"
#include "platform/wtf/Forward.h"

namespace blink {

class ExceptionState;
class KURL;
class ExecutionContext;

// Implementation of the AbstractWorker interface defined in the WebWorker HTML
// spec: https://html.spec.whatwg.org/multipage/workers.html#abstractworker
class CORE_EXPORT AbstractWorker : public EventTargetWithInlineData,
                                   public ContextLifecycleObserver {
  USING_GARBAGE_COLLECTED_MIXIN(AbstractWorker);

 public:
  // EventTarget APIs
  ExecutionContext* GetExecutionContext() const final {
    return ContextLifecycleObserver::GetExecutionContext();
  }

  DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(error);

  AbstractWorker(ExecutionContext*);
  ~AbstractWorker() override;

  DECLARE_VIRTUAL_TRACE();

 protected:
  // Helper function that converts a URL to an absolute URL and checks the
  // result for validity.
  static KURL ResolveURL(ExecutionContext*,
                         const String& url,
                         ExceptionState&,
                         WebURLRequest::RequestContext);
};

}  // namespace blink

#endif  // AbstractWorker_h