1 /* 2 * Copyright (C) 2009 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 WebMessagePortChannel_h 32 #define WebMessagePortChannel_h 33 34 #include "WebCommon.h" 35 #include "WebVector.h" 36 37 namespace blink { 38 39 class WebMessagePortChannelClient; 40 class WebString; 41 42 typedef WebVector<class WebMessagePortChannel*> WebMessagePortChannelArray; 43 44 // Provides an interface to a Message Port Channel implementation. The object owns itself and 45 // is signalled that its not needed anymore with the destroy() call. 46 class WebMessagePortChannel { 47 public: 48 virtual void setClient(WebMessagePortChannelClient*) = 0; 49 virtual void destroy() = 0; 50 // WebKit versions of WebCore::MessagePortChannel. 51 virtual void entangle(WebMessagePortChannel*) = 0; 52 // Callee receives ownership of the passed vector. 53 virtual void postMessage(const WebString&, WebMessagePortChannelArray*) = 0; 54 virtual bool tryGetMessage(WebString*, WebMessagePortChannelArray&) = 0; 55 56 protected: 57 ~WebMessagePortChannel() { } 58 }; 59 60 } // namespace blink 61 62 #if INSIDE_BLINK 63 64 namespace WTF { 65 66 template<typename T> struct OwnedPtrDeleter; 67 template<> struct OwnedPtrDeleter<blink::WebMessagePortChannel> { 68 static void deletePtr(blink::WebMessagePortChannel* channel) 69 { 70 if (channel) 71 channel->destroy(); 72 } 73 }; 74 75 } // namespace WTF 76 77 #endif // INSIDE_BLINK 78 79 #endif // WebMessagePortChannel_h 80
