media/midi/usb_midi_device_android.h

   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   ~UsbMidiDeviceAndroid() override;
  27
  28   // UsbMidiDevice implementation.
  29   std::vector<uint8> GetDescriptor() override;
  30   void Send(int endpoint_number, const std::vector<uint8>& data) override;
  31
  32   // Called by the Java world.
  33   void OnData(JNIEnv* env,
  34               jobject caller,
  35               jint endpoint_number,
  36               jbyteArray data);
  37
  38   static bool RegisterUsbMidiDevice(JNIEnv* env);
  39
  40  private:
  41   // The actual device object.
  42   base::android::ScopedJavaGlobalRef<jobject> raw_device_;
  43   UsbMidiDeviceDelegate* delegate_;
  44
  45   DISALLOW_IMPLICIT_CONSTRUCTORS(UsbMidiDeviceAndroid);
  46 };
  47
  48 }  // namespace media
  49
  50 #endif  // MEDIA_MIDI_USB_MIDI_DEVICE_ANDROID_H_