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

   1 /* AppSearchStuv.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 import de.dhbwloe.campusapp.search.StuvSearchHelper;
  38
  39 /**
  40  * A simple {@link Fragment} subclass.
  41  */
  42 public class AppSearchStuv extends CampusAppFragment implements AppSearchProvider {
  43     private String sSearchQuery;
  44     private boolean bQueryExecuted = false;
  45     private boolean bExecuteOnload = false;
  46     private AppSearchListAdapter appSearchAdapter;
  47     private StuvSearchHelper seachHelper;
  48     private ArrayList<AppSearchListItem> searchResultItems = new ArrayList<AppSearchListItem>();
  49     private ProgressBar progressBar;
  50
  51     @Override
  52     public void onCreate(Bundle savedInstanceState) {
  53         super.onCreate(savedInstanceState);
  54         Bundle savedState;
  55         if((savedState = getArguments()) != null)
  56             sSearchQuery = savedState.getString("query");
  57         if(savedInstanceState != null && (savedState = savedInstanceState.getBundle("SearchStuv")) != null) {
  58             sSearchQuery = savedState.getString("query");
  59             if(savedState.getBoolean("executed")) {
  60                 executeSearch(false);
  61             }
  62         }
  63     }
  64
  65     @Override
  66     public void onSaveInstanceState(Bundle savedInstanceState) {
  67         Bundle bundle = new Bundle();
  68         bundle.putString("query", sSearchQuery);
  69         bundle.putBoolean("executed", bQueryExecuted);
  70         savedInstanceState.putBundle("SearchStuv", bundle);
  71         super.onSaveInstanceState(savedInstanceState);
  72     }
  73
  74     @Override
  75     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  76                              Bundle savedInstanceState) {
  77         if(AppContext == null)
  78             AppContext = CampusAppContext.getInstance();
  79         oFragmentView = inflater.inflate(R.layout.fragment_appsearch_list, container, false);
  80
  81         Bundle args = getArguments();
  82         if(args != null) {
  83             String queryString = args.getString("query");
  84             if(queryString != null)
  85                 sSearchQuery = queryString;
  86         }
  87
  88         ListView searchResultList = (ListView) oFragmentView.findViewById(R.id.searchResultItems);
  89         if(appSearchAdapter == null)
  90             appSearchAdapter = new AppSearchListAdapter(oFragmentView.getContext(), R.layout.fragment_appsearch_listitem, searchResultItems);
  91         searchResultList.setAdapter(appSearchAdapter);
  92
  93         searchResultList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  94             @Override
  95             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  96                 AppSearchListItem item = searchResultItems.get(position);
  97                 if (item == null)
  98                     return;
  99                 navigateToResult(item);
 100             }
 101         });
 102
 103         return oFragmentView;
 104     }
 105
 106     public void executeSearch(final boolean reset) {
 107         if(AppContext == null)
 108             AppContext = CampusAppContext.getInstance();
 109         if(bQueryExecuted && !reset)
 110             return;
 111         bQueryExecuted = true;
 112         progressBar = (ProgressBar) oFragmentView.findViewById(R.id.searchProgress);
 113         progressBar.setVisibility(View.VISIBLE);
 114
 115         searchResultItems.clear();
 116
 117         if(seachHelper == null)
 118             seachHelper = new StuvSearchHelper();
 119         seachHelper.search(sSearchQuery, new SearchResultListener() {
 120             @Override
 121             public void onSearchResultsReceived(List<AppSearchListItem> results) {
 122                 Log.i("SearchStuv", "Success: "+results.size());
 123                 for(AppSearchListItem result : results)
 124                     searchResultItems.add(result);
 125                 progressBar.setVisibility(View.GONE);
 126                 if(appSearchAdapter != null)
 127                     appSearchAdapter.notifyDataSetChanged();
 128             }
 129
 130             @Override
 131             public void onSearchFailed(String error) {
 132                 Log.i("SearchDhbw", "Failed: " + error);
 133                 progressBar.setVisibility(View.GONE);
 134             }
 135         });
 136
 137     }
 138
 139     private void navigateToResult(AppSearchListItem result) {
 140         SearchTarget target = result.getTarget();
 141
 142         target.navigate(AppContext.getNavigationManager());
 143     }
 144
 145 }