1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef AbstractWorker_h 32#define AbstractWorker_h 33 34#if ENABLE(WORKERS) 35 36#include "ActiveDOMObject.h" 37#include "EventListener.h" 38#include "EventNames.h" 39#include "EventTarget.h" 40#include <wtf/PassRefPtr.h> 41#include <wtf/RefCounted.h> 42#include <wtf/RefPtr.h> 43#include <wtf/text/AtomicStringHash.h> 44 45namespace WebCore { 46 47 class KURL; 48 class ScriptExecutionContext; 49 50 class AbstractWorker : public RefCounted<AbstractWorker>, public ActiveDOMObject, public EventTarget { 51 public: 52 // EventTarget APIs 53 virtual ScriptExecutionContext* scriptExecutionContext() const { return ActiveDOMObject::scriptExecutionContext(); } 54 55 DEFINE_ATTRIBUTE_EVENT_LISTENER(error); 56 57 using RefCounted<AbstractWorker>::ref; 58 using RefCounted<AbstractWorker>::deref; 59 60 virtual void contextDestroyed(); 61 AbstractWorker(ScriptExecutionContext*); 62 virtual ~AbstractWorker(); 63 64 protected: 65 // Helper function that converts a URL to an absolute URL and checks the result for validity. 66 KURL resolveURL(const String& url, ExceptionCode& ec); 67 intptr_t asID() const { return reinterpret_cast<intptr_t>(this); } 68 69 private: 70 virtual void refEventTarget() { ref(); } 71 virtual void derefEventTarget() { deref(); } 72 virtual EventTargetData* eventTargetData(); 73 virtual EventTargetData* ensureEventTargetData(); 74 void onDestroyWorker(); 75 76 EventTargetData m_eventTargetData; 77 }; 78 79} // namespace WebCore 80 81#endif // ENABLE(WORKERS) 82 83#endif // AbstractWorker_h 84