content: /*
   * Copyright (C) 2010 ZXing authors
   *
   * 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 com.google.zxing.camera;
  
  import android.hardware.Camera;
  import android.os.Handler;
  import android.os.Message;
  import android.util.Log;
  
  final class AutoFocusCallback implements Camera.AutoFocusCallback {
  
    private static final String TAG = AutoFocusCallback.class.getSimpleName();
  
    private static final long AUTOFOCUS_INTERVAL_MS = 1500L;
  
    private Handler autoFocusHandler;
    private int autoFocusMessage;
  
    void setHandler(Handler autoFocusHandler, int autoFocusMessage) {
      this.autoFocusHandler = autoFocusHandler;
      this.autoFocusMessage = autoFocusMessage;
    }
  
    public void onAutoFocus(boolean success, Camera camera) {
      if (autoFocusHandler != null) {
        Message message = autoFocusHandler.obtainMessage(autoFocusMessage, success);
        autoFocusHandler.sendMessageDelayed(message, AUTOFOCUS_INTERVAL_MS);
        autoFocusHandler = null;
      } else {
        Log.d(TAG, "Got auto-focus callback, but no handler for it");
      }
    }
  
  }
  