1/* 2 * Copyright (C) 2014 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef WebScriptMessageHandler_h 27#define WebScriptMessageHandler_h 28 29#include <wtf/PassRefPtr.h> 30#include <wtf/RefCounted.h> 31#include <wtf/text/WTFString.h> 32 33namespace IPC { 34class ArgumentDecoder; 35class ArgumentEncoder; 36} 37 38namespace WebCore { 39class SerializedScriptValue; 40} 41 42namespace WebKit { 43 44class WebPageProxy; 45class WebFrameProxy; 46 47struct WebScriptMessageHandlerHandle { 48 void encode(IPC::ArgumentEncoder&) const; 49 static bool decode(IPC::ArgumentDecoder&, WebScriptMessageHandlerHandle&); 50 51 uint64_t identifier; 52 String name; 53}; 54 55class WebScriptMessageHandler : public RefCounted<WebScriptMessageHandler> { 56public: 57 class Client { 58 public: 59 virtual ~Client() { } 60 virtual void didPostMessage(WebPageProxy&, WebFrameProxy&, WebCore::SerializedScriptValue&) = 0; 61 }; 62 63 static PassRefPtr<WebScriptMessageHandler> create(std::unique_ptr<Client>, const String& name); 64 virtual ~WebScriptMessageHandler(); 65 66 WebScriptMessageHandlerHandle handle() { return { m_identifier, m_name }; } 67 68 uint64_t identifier() const { return m_identifier; } 69 String name() const { return m_name; } 70 71 Client& client() const { return *m_client; } 72 73private: 74 WebScriptMessageHandler(std::unique_ptr<Client>, const String&); 75 76 uint64_t m_identifier; 77 78 std::unique_ptr<Client> m_client; 79 String m_name; 80}; 81 82} // namespace API 83 84#endif // WebScriptMessageHandler_h 85