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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_FACTORY_ANDROID_H_
      6 #define MEDIA_MIDI_USB_MIDI_DEVICE_FACTORY_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 "base/memory/scoped_vector.h"
     15 #include "base/memory/weak_ptr.h"
     16 #include "media/base/media_export.h"
     17 #include "media/midi/usb_midi_device.h"
     18 
     19 namespace media {
     20 
     21 // This class enumerates UsbMidiDevices.
     22 class MEDIA_EXPORT UsbMidiDeviceFactoryAndroid : public UsbMidiDevice::Factory {
     23  public:
     24   UsbMidiDeviceFactoryAndroid();
     25   virtual ~UsbMidiDeviceFactoryAndroid();
     26 
     27   // UsbMidiDevice::Factory implementation.
     28   virtual void EnumerateDevices(UsbMidiDeviceDelegate* delegate,
     29                                 Callback callback) OVERRIDE;
     30 
     31   void OnUsbMidiDeviceRequestDone(JNIEnv* env,
     32                                   jobject caller,
     33                                   jobjectArray devices);
     34 
     35   static bool RegisterUsbMidiDeviceFactory(JNIEnv* env);
     36 
     37  private:
     38   base::android::ScopedJavaGlobalRef<jobject> raw_factory_;
     39   // Not owned.
     40   UsbMidiDeviceDelegate* delegate_;
     41   Callback callback_;
     42 
     43   DISALLOW_COPY_AND_ASSIGN(UsbMidiDeviceFactoryAndroid);
     44 };
     45 
     46 }  // namespace media
     47 
     48 #endif  // MEDIA_MIDI_USB_MIDI_DEVICE_FACTORY_ANDROID_H_
     49