1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * Copyright (C) 2010 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef SharedWorker_h 33 #define SharedWorker_h 34 35 #include "core/workers/AbstractWorker.h" 36 #include "platform/Supplementable.h" 37 #include "platform/heap/Handle.h" 38 39 namespace WebCore { 40 41 class ExceptionState; 42 43 class SharedWorker FINAL : public AbstractWorker, public ScriptWrappable, public WillBeHeapSupplementable<SharedWorker> { 44 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SharedWorker); 45 public: 46 static PassRefPtrWillBeRawPtr<SharedWorker> create(ExecutionContext*, const String& url, const String& name, ExceptionState&); 47 virtual ~SharedWorker(); 48 49 MessagePort* port() const { return m_port.get(); } 50 51 virtual const AtomicString& interfaceName() const OVERRIDE; 52 53 // Prevents this SharedWorker + JS wrapper from being garbage collected. 54 void setPreventGC(); 55 // Allows this SharedWorker + JS wrapper to be garbage collected. 56 void unsetPreventGC(); 57 58 virtual void trace(Visitor*) OVERRIDE; 59 60 private: 61 explicit SharedWorker(ExecutionContext*); 62 63 RefPtr<MessagePort> m_port; 64 }; 65 66 } // namespace WebCore 67 68 #endif // SharedWorker_h 69
