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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.camera.one.v2.core;
     18 
     19 import android.hardware.camera2.CaptureFailure;
     20 import android.hardware.camera2.CaptureResult;
     21 import android.hardware.camera2.TotalCaptureResult;
     22 
     23 import com.google.common.collect.ImmutableList;
     24 
     25 import java.util.Collection;
     26 
     27 /**
     28  * Combines multiple {@link ResponseListener}s into a single one which
     29  * dispatches to all listeners for each callback.
     30  */
     31 class ResponseListenerBroadcaster extends ResponseListener {
     32     private final ImmutableList<ResponseListener> mListeners;
     33 
     34     public ResponseListenerBroadcaster(ResponseListener[] listeners) {
     35         mListeners = ImmutableList.copyOf(listeners);
     36     }
     37 
     38     public ResponseListenerBroadcaster(Collection<ResponseListener> listeners) {
     39         mListeners = ImmutableList.copyOf(listeners);
     40     }
     41 
     42     @Override
     43     public void onStarted(long timestamp) {
     44         for (ResponseListener listener : mListeners) {
     45             listener.onStarted(timestamp);
     46         }
     47     }
     48 
     49     @Override
     50     public void onProgressed(CaptureResult partialResult) {
     51         for (ResponseListener listener : mListeners) {
     52             listener.onProgressed(partialResult);
     53         }
     54     }
     55 
     56     @Override
     57     public void onCompleted(TotalCaptureResult result) {
     58         for (ResponseListener listener : mListeners) {
     59             listener.onCompleted(result);
     60         }
     61     }
     62 
     63     @Override
     64     public void onFailed(CaptureFailure failure) {
     65         for (ResponseListener listener : mListeners) {
     66             listener.onFailed(failure);
     67         }
     68     }
     69 }
     70