Web MIDI: implement MIDIPort

Source/modules/webmidi/MIDIPort.h

Index: Source/modules/webmidi/MIDIPort.h
diff --git a/Source/modules/mediasource/SourceBufferList.h b/Source/modules/webmidi/MIDIPort.h
similarity index 53%
copy from Source/modules/mediasource/SourceBufferList.h
copy to Source/modules/webmidi/MIDIPort.h
index 7c5b2156c6e21f9e49cdd7af05ddddc055c0231f..4352b2c2a7bb60456ec92969b0cd9d73aa175ecf 100644
--- a/Source/modules/mediasource/SourceBufferList.h
+++ b/Source/modules/webmidi/MIDIPort.h
@@ -1,5 +1,5 @@
 /*
- * 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
@@ -28,59 +28,65 @@
  * 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 SourceBufferList : public RefCounted<SourceBufferList>, public EventTarget {
+class MIDIPort : public ActiveDOMObject, public RefCounted<MIDIPort>, public EventTarget {
 public:
-    static PassRefPtr<SourceBufferList> create(ScriptExecutionContext* context, GenericEventQueue* asyncEventQueue)
-    {
-        return adoptRef(new SourceBufferList(context, asyncEventQueue));
-    }
-    virtual ~SourceBufferList() { }
+    enum MIDIPortTypeCode {
+        MIDIPortTypeInput,
+        MIDIPortTypeOutput
+    };
 
-    unsigned long length() const;
-    SourceBuffer* item(unsigned index) const;
+    static PassRefPtr<MIDIPort> create(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode, const String& version);
+    virtual ~MIDIPort();
 
-    void add(PassRefPtr<SourceBuffer>);
-    bool remove(SourceBuffer*);
-    void clear();
+    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; }
 
-    // EventTarget interface
-    virtual const AtomicString& interfaceName() const OVERRIDE;
-    virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE;
+    using RefCounted<MIDIPort>::ref;
+    using RefCounted<MIDIPort>::deref;
 
-    using RefCounted<SourceBufferList>::ref;
-    using RefCounted<SourceBufferList>::deref;
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(disconnect);
 
-protected:
-    virtual EventTargetData* eventTargetData() OVERRIDE;
-    virtual EventTargetData* ensureEventTargetData() OVERRIDE;
+    // EventTarget
+    virtual const AtomicString& interfaceName() const OVERRIDE { return eventNames().interfaceForMIDIPort; }
+    virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE { return ActiveDOMObject::scriptExecutionContext(); }
 
-private:
-    SourceBufferList(ScriptExecutionContext*, GenericEventQueue*);
+    // ActiveDOMObject
+    virtual bool canSuspend() const OVERRIDE { return true; }
 
-    void createAndFireEvent(const AtomicString&);
+protected:
+    MIDIPort(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode, const String& version);
 
+private:
+    // 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