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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"); you may not use this file except
      5  * in compliance with the License. You may obtain a copy of the License at
      6  *
      7  * http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the License
     10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
     11  * or implied. See the License for the specific language governing permissions and limitations under
     12  * the License.
     13  */
     14 
     15 package com.example.android.tvleanback.ui;
     16 
     17 import android.content.Intent;
     18 import android.os.Bundle;
     19 import android.os.Handler;
     20 import android.support.v17.leanback.widget.ArrayObjectAdapter;
     21 import android.support.v17.leanback.widget.HeaderItem;
     22 import android.support.v17.leanback.widget.ImageCardView;
     23 import android.support.v17.leanback.widget.ListRow;
     24 import android.support.v17.leanback.widget.ListRowPresenter;
     25 import android.support.v17.leanback.widget.ObjectAdapter;
     26 import android.support.v17.leanback.widget.OnItemViewClickedListener;
     27 import android.support.v17.leanback.widget.Presenter;
     28 import android.support.v17.leanback.widget.Row;
     29 import android.support.v17.leanback.widget.RowPresenter;
     30 import android.support.v4.app.ActivityOptionsCompat;
     31 import android.text.TextUtils;
     32 import android.util.Log;
     33 import android.widget.Toast;
     34 
     35 import com.example.android.tvleanback.R;
     36 import com.example.android.tvleanback.data.VideoProvider;
     37 import com.example.android.tvleanback.model.Movie;
     38 import com.example.android.tvleanback.presenter.CardPresenter;
     39 
     40 import java.util.HashMap;
     41 import java.util.List;
     42 import java.util.Locale;
     43 import java.util.Map;
     44 
     45 /*
     46  * This class demonstrates how to do in-app search
     47  */
     48 public class SearchFragment extends android.support.v17.leanback.app.SearchFragment
     49         implements android.support.v17.leanback.app.SearchFragment.SearchResultProvider {
     50     private static final String TAG = "SearchFragment";
     51     private static final int SEARCH_DELAY_MS = 1000;
     52 
     53     private ArrayObjectAdapter mRowsAdapter;
     54     private Handler mHandler = new Handler();
     55     private SearchRunnable mDelayedLoad;
     56     private String mQuery;
     57 
     58     @Override
     59     public void onCreate(Bundle savedInstanceState) {
     60         super.onCreate(savedInstanceState);
     61 
     62         mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
     63         setSearchResultProvider(this);
     64         setOnItemViewClickedListener(new ItemViewClickedListener());
     65         mDelayedLoad = new SearchRunnable();
     66     }
     67 
     68     @Override
     69     public ObjectAdapter getResultsAdapter() {
     70         return mRowsAdapter;
     71     }
     72 
     73     @Override
     74     public boolean onQueryTextChange(String newQuery) {
     75         Log.i(TAG, String.format("Search Query Text Change %s", newQuery));
     76         loadQuery(newQuery);
     77         return true;
     78     }
     79 
     80     @Override
     81     public boolean onQueryTextSubmit(String query) {
     82         Log.i(TAG, String.format("Search Query Text Submit %s", query));
     83         loadQuery(query);
     84         return true;
     85     }
     86 
     87     private void loadQuery(String query) {
     88         mQuery = query;
     89         mRowsAdapter.clear();
     90         mHandler.removeCallbacks(mDelayedLoad);
     91         if (!TextUtils.isEmpty(query) && !query.equals("nil")) {
     92             mDelayedLoad.setSearchQuery(query);
     93             mHandler.postDelayed(mDelayedLoad, SEARCH_DELAY_MS);
     94         }
     95     }
     96 
     97     private void loadRows(String query) {
     98         HashMap<String, List<Movie>> movies = VideoProvider.getMovieList();
     99         ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(new CardPresenter());
    100         for (Map.Entry<String, List<Movie>> entry : movies.entrySet()) {
    101             for (Movie movie : entry.getValue()) {
    102                 if (movie.getTitle().toLowerCase(Locale.ENGLISH)
    103                         .contains(query.toLowerCase(Locale.ENGLISH))
    104                         || movie.getDescription().toLowerCase(Locale.ENGLISH)
    105                         .contains(query.toLowerCase(Locale.ENGLISH))) {
    106                     listRowAdapter.add(movie);
    107                 }
    108             }
    109         }
    110         HeaderItem header = new HeaderItem(0, getResources().getString(R.string.search_results)
    111                 + " '" + mQuery + "'");
    112         mRowsAdapter.add(new ListRow(header, listRowAdapter));
    113     }
    114 
    115     private class SearchRunnable implements Runnable {
    116 
    117         private volatile String searchQuery;
    118 
    119         public SearchRunnable() {
    120         }
    121 
    122         public void run() {
    123             loadRows(searchQuery);
    124         }
    125 
    126         public void setSearchQuery(String value) {
    127             this.searchQuery = value;
    128         }
    129     }
    130 
    131     private final class ItemViewClickedListener implements OnItemViewClickedListener {
    132         @Override
    133         public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
    134                                   RowPresenter.ViewHolder rowViewHolder, Row row) {
    135 
    136             if (item instanceof Movie) {
    137                 Movie movie = (Movie) item;
    138                 Log.d(TAG, "Movie: " + movie.toString());
    139                 Intent intent = new Intent(getActivity(), MovieDetailsActivity.class);
    140                 intent.putExtra(MovieDetailsActivity.MOVIE, movie);
    141 
    142                 Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
    143                         getActivity(),
    144                         ((ImageCardView) itemViewHolder.view).getMainImageView(),
    145                         MovieDetailsActivity.SHARED_ELEMENT_NAME).toBundle();
    146                 getActivity().startActivity(intent, bundle);
    147             } else {
    148                 Toast.makeText(getActivity(), ((String) item), Toast.LENGTH_SHORT)
    149                         .show();
    150             }
    151         }
    152     }
    153 
    154 
    155 }
    156