app/src/main/java/de/dhbwloe/campusapp/fragments/AppSearchDhbw.java

   1 /* AppSearchDhbw.java
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 package de.dhbwloe.campusapp.fragments;
  17 import android.os.Bundle;
  18 import android.support.v4.app.Fragment;
  19 import android.util.Log;
  20 import android.view.LayoutInflater;
  21 import android.view.View;
  22 import android.view.ViewGroup;
  23 import android.widget.AdapterView;
  24 import android.widget.ListView;
  25 import android.widget.ProgressBar;
  26
  27 import java.util.ArrayList;
  28 import java.util.List;
  29
  30 import de.dhbwloe.campusapp.CampusAppContext;
  31 import de.dhbwloe.campusapp.CampusAppFragment;
  32 import de.dhbwloe.campusapp.R;
  33 import de.dhbwloe.campusapp.search.DhbwSearchHelper;
  34 import de.dhbwloe.campusapp.search.SearchIndices;
  35 import de.dhbwloe.campusapp.search.SearchResultListener;
  36 import de.dhbwloe.campusapp.search.SearchTarget;
  37
  38 /**
  39  * A simple {@link Fragment} subclass.
  40  */
  41 public class AppSearchDhbw extends CampusAppFragment implements AppSearchProvider {
  42     private String sSearchQuery;
  43     private boolean bQueryExecuted = false;
  44     private AppSearchListAdapter appSearchAdapter;
  45     private DhbwSearchHelper seachHelper;
  46     private ArrayList<AppSearchListItem> searchResultItems = new ArrayList<AppSearchListItem>();
  47     private ProgressBar progressBar;
  48
  49     @Override
  50     public void onCreate(Bundle savedInstanceState) {
  51         Log.i("AppSearchDhbw", "Event: onCreate");
  52         super.onCreate(savedInstanceState);
  53     }
  54
  55     @Override
  56     public void onSaveInstanceState(Bundle savedInstanceState) {
  57         Log.i("AppSearchDhbw", "Event: onSaveInstanceState");
  58         Bundle bundle = new Bundle();
  59         bundle.putString("query", sSearchQuery);
  60         bundle.putBoolean("executed", bQueryExecuted);
  61         savedInstanceState.putBundle("SearchDhbw", bundle);
  62         super.onSaveInstanceState(savedInstanceState);
  63     }
  64
  65     @Override
  66     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  67                              Bundle savedInstanceState) {
  68         Log.i("AppSearchDhbw", "Event: onCreateView");
  69         Bundle savedState;
  70         if((savedState = getArguments()) != null)
  71             sSearchQuery = savedState.getString("query");
  72         else if(savedInstanceState != null && (savedState = savedInstanceState.getBundle("SearchDhbw")) != null) {
  73             Log.i("AppSearchDhbw", "Parsed instance state");
  74             sSearchQuery = savedState.getString("query");
  75             if(savedState.getBoolean("executed")) {
  76                 bQueryExecuted = true;
  77             }
  78         }
  79         if(AppContext == null)
  80             AppContext = CampusAppContext.getInstance();
  81         oFragmentView = inflater.inflate(R.layout.fragment_appsearch_list, container, false);
  82
  83         Bundle args = getArguments();
  84         if(args != null) {
  85             String queryString = args.getString("query");
  86             if(queryString != null)
  87                 sSearchQuery = queryString;
  88         }
  89
  90         ListView searchResultList = (ListView) oFragmentView.findViewById(R.id.searchResultItems);
  91         appSearchAdapter = new AppSearchListAdapter(oFragmentView.getContext(), R.layout.fragment_appsearch_listitem, searchResultItems);
  92         searchResultList.setAdapter(appSearchAdapter);
  93
  94         searchResultList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  95             @Override
  96             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  97                 AppSearchListItem item = searchResultItems.get(position);
  98                 if (item == null)
  99                     return;
 100                 navigateToResult(item);
 101             }
 102         });
 103
 104         return oFragmentView;
 105     }
 106
 107     public void executeSearch(boolean reset) {
 108         Log.i("AppSearchDhbw", "Action: executeSearch");
 109         if(AppContext == null)
 110             AppContext = CampusAppContext.getInstance();
 111         if(bQueryExecuted && !reset)
 112             return;
 113         bQueryExecuted = true;
 114         progressBar = (ProgressBar) oFragmentView.findViewById(R.id.searchProgress);
 115         progressBar.setVisibility(View.VISIBLE);
 116
 117         searchResultItems.clear();
 118
 119         if(seachHelper == null)
 120             seachHelper = new DhbwSearchHelper();
 121         seachHelper.search(sSearchQuery, new SearchResultListener() {
 122             @Override
 123             public void onSearchResultsReceived(List<AppSearchListItem> results) {
 124                 Log.i("SearchDhbw", "Success: "+results.size());
 125                 for(AppSearchListItem result : results)
 126                     searchResultItems.add(result);
 127                 progressBar.setVisibility(View.GONE);
 128                 if(appSearchAdapter != null)
 129                     appSearchAdapter.notifyDataSetChanged();
 130                 else
 131                     Log.i("SearchDhbw", "appSearchAdapter is null in executeSearch");
 132             }
 133
 134             @Override
 135             public void onSearchFailed(String error) {
 136                 Log.i("SearchDhbw", "Failed: " + error);
 137                 progressBar.setVisibility(View.GONE);
 138             }
 139         });
 140     }
 141
 142     private void navigateToResult(AppSearchListItem result) {
 143         SearchTarget target = result.getTarget();
 144
 145         target.navigate(AppContext.getNavigationManager());
 146     }
 147
 148 }