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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef MEDIA_MIDI_USB_MIDI_DEVICE_ANDROID_H_
      6 #define MEDIA_MIDI_USB_MIDI_DEVICE_ANDROID_H_
      7 
      8 #include <jni.h>
      9 #include <vector>
     10 
     11 #include "base/android/scoped_java_ref.h"
     12 #include "base/basictypes.h"
     13 #include "base/callback.h"
     14 #include "media/base/media_export.h"
     15 #include "media/midi/usb_midi_device.h"
     16 
     17 namespace media {
     18 
     19 class MEDIA_EXPORT UsbMidiDeviceAndroid : public UsbMidiDevice {
     20  public:
     21   typedef base::android::ScopedJavaLocalRef<jobject> ObjectRef;
     22 
     23   static scoped_ptr<Factory> CreateFactory();
     24 
     25   UsbMidiDeviceAndroid(ObjectRef raw_device, UsbMidiDeviceDelegate* delegate);
     26   virtual ~UsbMidiDeviceAndroid();
     27 
     28   // UsbMidiDevice implementation.
     29   virtual std::vector<uint8> GetDescriptor() OVERRIDE;
     30   virtual void Send(int endpoint_number,
     31                     const std::vector<uint8>& data) OVERRIDE;
     32 
     33   // Called by the Java world.
     34   void OnData(JNIEnv* env,
     35               jobject caller,
     36               jint endpoint_number,
     37               jbyteArray data);
     38 
     39   static bool RegisterUsbMidiDevice(JNIEnv* env);
     40 
     41  private:
     42   // The actual device object.
     43   base::android::ScopedJavaGlobalRef<jobject> raw_device_;
     44   UsbMidiDeviceDelegate* delegate_;
     45 
     46   DISALLOW_IMPLICIT_CONSTRUCTORS(UsbMidiDeviceAndroid);
     47 };
     48 
     49 }  // namespace media
     50 
     51 #endif  // MEDIA_MIDI_USB_MIDI_DEVICE_ANDROID_H_
     52