content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * 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 android.hardware.hdmi;
  
  import android.annotation.SystemApi;
  import android.os.RemoteException;
  import android.util.Log;
  
  /**
   * HdmiPlaybackClient represents HDMI-CEC logical device of type Playback
   * in the Android system which acts as a playback device such as set-top box.
   *
   * <p>HdmiPlaybackClient provides methods that control, get information from TV/Display device
   * connected through HDMI bus.
   *
   * @hide
   */
  @SystemApi
  public final class HdmiPlaybackClient extends HdmiClient {
      private static final String TAG = "HdmiPlaybackClient";
  
      // Logical address of TV. The secondary TV is not handled.
      private static final int ADDR_TV = 0;
  
      /**
       * Listener used by the client to get the result of one touch play operation.
       */
      public interface OneTouchPlayCallback {
          /**
           * Called when the result of the feature one touch play is returned.
           *
           * @param result the result of the operation. {@link HdmiControlManager#RESULT_SUCCESS}
           *         if successful.
           */
          public void onComplete(int result);
      }
  
      /**
       * Listener used by the client to get display device status.
       */
      public interface DisplayStatusCallback {
          /**
           * Called when display device status is reported.
           *
           * @param status display device status. It should be one of the following values.
           *            <ul>
           *            <li>{@link HdmiControlManager#POWER_STATUS_ON}
           *            <li>{@link HdmiControlManager#POWER_STATUS_STANDBY}
           *            <li>{@link HdmiControlManager#POWER_STATUS_TRANSIENT_TO_ON}
           *            <li>{@link HdmiControlManager#POWER_STATUS_TRANSIENT_TO_STANDBY}
           *            <li>{@link HdmiControlManager#POWER_STATUS_UNKNOWN}
           *            </ul>
           */
          public void onComplete(int status);
      }
  
      /* package */ HdmiPlaybackClient(IHdmiControlService service) {
          super(service);
      }
  
      /**
       * Performs the feature 'one touch play' from playback device to turn on display
       * and switch the input.
       *
       * @param callback {@link OneTouchPlayCallback} object to get informed
       *         of the result
       */
      public void oneTouchPlay(OneTouchPlayCallback callback) {
          // TODO: Use PendingResult.
          try {
              mService.oneTouchPlay(getCallbackWrapper(callback));
          } catch (RemoteException e) {
              Log.e(TAG, "oneTouchPlay threw exception ", e);
          }
      }
  
      @Override
      public int getDeviceType() {
          return HdmiDeviceInfo.DEVICE_PLAYBACK;
      }
  
      /**
       * Gets the status of display device connected through HDMI bus.
       *
       * @param callback {@link DisplayStatusCallback} object to get informed
       *         of the result
       */
      public void queryDisplayStatus(DisplayStatusCallback callback) {
          try {
              mService.queryDisplayStatus(getCallbackWrapper(callback));
          } catch (RemoteException e) {
              Log.e(TAG, "queryDisplayStatus threw exception ", e);
          }
      }
  
      /**
       * Sends a &lt;Standby&gt; command to TV.
       */
      public void sendStandby() {
          try {
              mService.sendStandby(getDeviceType(), HdmiDeviceInfo.idForCecDevice(ADDR_TV));
          } catch (RemoteException e) {
              Log.e(TAG, "sendStandby threw exception ", e);
          }
      }
  
      private IHdmiControlCallback getCallbackWrapper(final OneTouchPlayCallback callback) {
          return new IHdmiControlCallback.Stub() {
              @Override
              public void onComplete(int result) {
                  callback.onComplete(result);
              }
          };
      }
  
      private IHdmiControlCallback getCallbackWrapper(final DisplayStatusCallback callback) {
          return new IHdmiControlCallback.Stub() {
              @Override
              public void onComplete(int status) {
                  callback.onComplete(status);
              }
          };
      }
  }
  