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      1 /*
      2  * Copyright (C) 2016 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.tv.dvr.ui;
     18 
     19 import android.support.v17.leanback.widget.PresenterSelector;
     20 
     21 import com.android.tv.common.recording.RecordedProgram;
     22 import com.android.tv.dvr.DvrDataManager;
     23 
     24 /**
     25  * Adapter for {@link RecordedProgram}.
     26  */
     27 final class RecordedProgramsAdapter extends SortedArrayAdapter<RecordedProgram>
     28         implements DvrDataManager.RecordedProgramListener {
     29     private final DvrDataManager mDataManager;
     30 
     31     RecordedProgramsAdapter(DvrDataManager dataManager, PresenterSelector presenterSelector) {
     32         super(presenterSelector, RecordedProgram.START_TIME_THEN_ID_COMPARATOR);
     33         mDataManager = dataManager;
     34     }
     35 
     36     public void start() {
     37         clear();
     38         addAll(mDataManager.getRecordedPrograms());
     39         mDataManager.addRecordedProgramListener(this);
     40     }
     41 
     42     public void stop() {
     43         mDataManager.removeRecordedProgramListener(this);
     44     }
     45 
     46     @Override
     47     long getId(RecordedProgram item) {
     48         return item.getId();
     49     }
     50 
     51     @Override  // DvrDataManager.RecordedProgramListener
     52     public void onRecordedProgramAdded(RecordedProgram recordedProgram) {
     53         add(recordedProgram);
     54     }
     55 
     56     @Override  // DvrDataManager.RecordedProgramListener
     57     public void onRecordedProgramChanged(RecordedProgram recordedProgram) {
     58         change(recordedProgram);
     59     }
     60 
     61     @Override  // DvrDataManager.RecordedProgramListener
     62     public void onRecordedProgramRemoved(RecordedProgram recordedProgram) {
     63         remove(recordedProgram);
     64     }
     65 }
     66