1 /* 2 * Copyright (C) 2013 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 MIDIAccessor_h 32 #define MIDIAccessor_h 33 34 #include "public/platform/WebMIDIAccessor.h" 35 #include "public/platform/WebMIDIAccessorClient.h" 36 #include "wtf/OwnPtr.h" 37 #include "wtf/PassOwnPtr.h" 38 39 namespace blink { 40 41 class MIDIAccessorClient; 42 43 class MIDIAccessor FINAL : public WebMIDIAccessorClient { 44 public: 45 static PassOwnPtr<MIDIAccessor> create(MIDIAccessorClient*); 46 47 virtual ~MIDIAccessor() { } 48 49 void startSession(); 50 void sendMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp); 51 // MIDIAccessInitializer and MIDIAccess are both MIDIAccessClient. 52 // MIDIAccessInitializer is the first client and MIDIAccess takes over it 53 // once the initialization successfully finishes. 54 void setClient(MIDIAccessorClient* client) { m_client = client; } 55 56 // WebMIDIAccessorClient 57 virtual void didAddInputPort(const WebString& id, const WebString& manufacturer, const WebString& name, const WebString& version) OVERRIDE; 58 virtual void didAddOutputPort(const WebString& id, const WebString& manufacturer, const WebString& name, const WebString& version) OVERRIDE; 59 virtual void didStartSession(bool success, const WebString& error, const WebString& message) OVERRIDE; 60 virtual void didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp) OVERRIDE; 61 62 private: 63 explicit MIDIAccessor(MIDIAccessorClient*); 64 65 MIDIAccessorClient* m_client; 66 OwnPtr<WebMIDIAccessor> m_accessor; 67 }; 68 69 } // namespace blink 70 71 #endif // MIDIAccessor_h 72
