Web MIDI: implement MIDIPort

Source/modules/webmidi/MIDIPort.h

 /*
- * Copyright (C) 2012 Google Inc. All rights reserved.
+ * 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.
  */
 
-#ifndef SourceBufferList_h
-#define SourceBufferList_h
+#ifndef MIDIPort_h
+#define MIDIPort_h
 
+#include "core/dom/ActiveDOMObject.h"
 #include "core/dom/EventTarget.h"
 #include "wtf/RefCounted.h"
+#include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
-class SourceBuffer;
-class GenericEventQueue;
+class MIDIPort : public ActiveDOMObject, public RefCounted<MIDIPort>, public EventTarget {
+public:
+    enum MIDIPortTypeCode {
+        MIDIPortTypeInput,
+        MIDIPortTypeOutput
+    };
 
-class SourceBufferList : public RefCounted<SourceBufferList>, public EventTarget {
-public:
-    static PassRefPtr<SourceBufferList> create(ScriptExecutionContext* context, GenericEventQueue* asyncEventQueue)
-    {
-        return adoptRef(new SourceBufferList(context, asyncEventQueue));
-    }
-    virtual ~SourceBufferList() { }
+    static PassRefPtr<MIDIPort> create(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode, const String& version);
+    virtual ~MIDIPort();
 
-    unsigned long length() const;
-    SourceBuffer* item(unsigned index) const;
+    String id() const { return m_id; }
+    String manufacturer() const { return m_manufacturer; }
+    String name() const { return m_name; }
+    String type() const;
+    String version() const { return m_version; }
 
-    void add(PassRefPtr<SourceBuffer>);
-    bool remove(SourceBuffer*);
-    void clear();
+    using RefCounted<MIDIPort>::ref;
+    using RefCounted<MIDIPort>::deref;
 
-    // EventTarget interface
-    virtual const AtomicString& interfaceName() const OVERRIDE;
-    virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE;
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(disconnect);
 
-    using RefCounted<SourceBufferList>::ref;
-    using RefCounted<SourceBufferList>::deref;
+    // EventTarget
+    virtual const AtomicString& interfaceName() const OVERRIDE { return eventNames().interfaceForMIDIPort; }
+    virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE { return ActiveDOMObject::scriptExecutionContext(); }
+
+    // ActiveDOMObject
+    virtual bool canSuspend() const OVERRIDE { return true; }
 
 protected:
-    virtual EventTargetData* eventTargetData() OVERRIDE;
-    virtual EventTargetData* ensureEventTargetData() OVERRIDE;
+    MIDIPort(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode, const String& version);
 
 private:
-    SourceBufferList(ScriptExecutionContext*, GenericEventQueue*);
-
-    void createAndFireEvent(const AtomicString&);
-
+    // EventTarget
     virtual void refEventTarget() OVERRIDE { ref(); }
     virtual void derefEventTarget() OVERRIDE { deref(); }
+    virtual EventTargetData* eventTargetData() OVERRIDE { return &m_eventTargetData; }
+    virtual EventTargetData* ensureEventTargetData() OVERRIDE { return &m_eventTargetData; }
 
+    String m_id;
+    String m_manufacturer;
+    String m_name;
+    MIDIPortTypeCode m_type;
+    String m_version;
     EventTargetData m_eventTargetData;
-    ScriptExecutionContext* m_scriptExecutionContext;
-    GenericEventQueue* m_asyncEventQueue;
+};
 
-    Vector<RefPtr<SourceBuffer> > m_list;
-};
+typedef Vector<RefPtr<MIDIPort> > MIDIPortVector;
 
 } // namespace WebCore
 
-#endif
+#endif // MIDIPort_h