UsbDevicePermissionReceiver.java

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/*
 * Copyright (C) 2011 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.ros.android.android_acm_serial;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;

class UsbDevicePermissionReceiver extends BroadcastReceiver {

  private final UsbDevicePermissionCallback callback;

  public UsbDevicePermissionReceiver(UsbDevicePermissionCallback callback) {
    this.callback = callback;
  }

  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    if (AcmDeviceActivity.ACTION_USB_PERMISSION.equals(action)) {
      synchronized (this) {
        if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
          UsbDevice device = (UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
          callback.onPermissionGranted(device);
        } else {
          callback.onPermissionDenied();
        }
      }
    }
  }
}