Web MIDI: MIDIAccessor platform implementation and Blink API

Source/core/platform/midi/MIDIAccessor.cpp

+/*
+ * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "core/platform/midi/MIDIAccessor.h"
+
+#include "core/platform/midi/MIDIAccessorClient.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebMIDIAccessor.h"
+#include "wtf/text/WTFString.h"
+
+using WebKit::WebString;
+
+namespace WebCore {
+
+// Factory method
+PassOwnPtr<MIDIAccessor> MIDIAccessor::create(MIDIAccessorClient* client)
+{
+    return adoptPtr(new MIDIAccessor(client));
+}
+
+MIDIAccessor::MIDIAccessor(MIDIAccessorClient* client)
+    : m_client(client)
+{
+    ASSERT(client);
+
+    m_accessor = adoptPtr(WebKit::Platform::current()->createMIDIAccessor(this));
+
+    ASSERT(m_accessor);
+}
+
+void MIDIAccessor::requestAccess(int access)
+{
+    m_accessor->requestAccess(access);
+}
+
+void MIDIAccessor::sendMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp)
+{
+    m_accessor->sendMIDIData(portIndex, data, length, timeStamp);
+}
+
+void MIDIAccessor::receiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp)
+{
+    m_client->receiveMIDIData(portIndex, data, length, timeStamp);
+}
+
+void MIDIAccessor::addInputPort(const WebString& id, const WebString& manufacturer, const WebString& name, const WebString& version)
+{
+    m_client->addInputPort(id, manufacturer, name, version);
+}
+
+void MIDIAccessor::addOutputPort(const WebString& id, const WebString& manufacturer, const WebString& name, const WebString& version)
+{
+    m_client->addOutputPort(id, manufacturer, name, version);
+}
+
+} // namespace WebCore