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

   1 package de.dhbwloe.campusapp.fragments;
   2
   3
   4 import android.os.Bundle;
   5 import android.support.v4.app.Fragment;
   6 import android.util.Log;
   7 import android.view.LayoutInflater;
   8 import android.view.View;
   9 import android.view.ViewGroup;
  10 import android.widget.AdapterView;
  11 import android.widget.ListView;
  12 import android.widget.TextView;
  13
  14 import java.util.ArrayList;
  15 import java.util.Date;
  16
  17 import de.dhbwloe.campusapp.CampusAppContext;
  18 import de.dhbwloe.campusapp.CampusAppFragment;
  19 import de.dhbwloe.campusapp.R;
  20 import de.dhbwloe.campusapp.search.SearchIndices;
  21 import de.dhbwloe.campusapp.search.SearchTarget;
  22
  23 /**
  24  * A simple {@link Fragment} subclass.
  25  */
  26 public class AppSearchInternal extends CampusAppFragment implements AppSearchProvider {
  27     private String sSearchQuery;
  28     private boolean bQueryExecuted = false;
  29     private AppSearchListAdapter appSearchAdapter;
  30     private ArrayList<AppSearchListItem> searchResultItems = new ArrayList<AppSearchListItem>();
  31
  32     @Override
  33     public void onCreate(Bundle savedInstanceState) {
  34         Log.i("AppSearchInternal", "Event: onCreate");
  35         super.onCreate(savedInstanceState);
  36         Bundle savedState;
  37         if((savedState = getArguments()) != null)
  38             sSearchQuery = savedState.getString("query");
  39         else if(savedInstanceState != null && (savedState = savedInstanceState.getBundle("SearchInternal")) != null) {
  40             sSearchQuery = savedState.getString("query");
  41             if(savedState.getBoolean("executed")) {
  42                 executeSearch(false);
  43             }
  44         }
  45     }
  46
  47     @Override
  48     public void onSaveInstanceState(Bundle savedInstanceState) {
  49         Log.i("AppSearchInternal", "Event: onSaveInstanceState");
  50         Bundle bundle = new Bundle();
  51         bundle.putString("query", sSearchQuery);
  52         bundle.putBoolean("executed", bQueryExecuted);
  53         savedInstanceState.putBundle("SearchInternal", bundle);
  54         super.onSaveInstanceState(savedInstanceState);
  55     }
  56
  57     private void parseIstanceState(Bundle bundle) {
  58         if(sSearchQuery != null)
  59             return;
  60         Bundle args = getArguments();
  61         if(args != null) {
  62             String queryString = args.getString("query");
  63             if(queryString != null)
  64                 sSearchQuery = queryString;
  65         }
  66         if(sSearchQuery == null && bundle != null) {
  67             String queryString = bundle.getString("query");
  68             if(queryString != null)
  69                 sSearchQuery = queryString;
  70         }
  71     }
  72
  73     @Override
  74     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  75                              Bundle savedInstanceState) {
  76         Log.i("AppSearchInternal", "Event: onCreateView");
  77         if(AppContext == null)
  78             AppContext = CampusAppContext.getInstance();
  79         oFragmentView = inflater.inflate(R.layout.fragment_appsearch_list, container, false);
  80
  81         parseIstanceState(savedInstanceState);
  82
  83         ListView searchResultList = (ListView) oFragmentView.findViewById(R.id.searchResultItems);
  84         appSearchAdapter = new AppSearchListAdapter(oFragmentView.getContext(), R.layout.fragment_appsearch_listitem, searchResultItems);
  85         searchResultList.setAdapter(appSearchAdapter);
  86
  87         searchResultList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  88             @Override
  89             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  90                 AppSearchListItem item = searchResultItems.get(position);
  91                 if (item == null)
  92                     return;
  93                 navigateToResult(item);
  94             }
  95         });
  96
  97         return oFragmentView;
  98     }
  99
 100     public void executeSearch(boolean reset) {
 101         if(sSearchQuery == null)
 102             parseIstanceState(null);
 103         Log.i("AppSearchInternal", "Action: executeSearch "+sSearchQuery);
 104         if(AppContext == null)
 105             AppContext = CampusAppContext.getInstance();
 106         if(bQueryExecuted && !reset)
 107             return;
 108         bQueryExecuted = true;
 109
 110         searchResultItems.clear();
 111
 112         SearchIndices[] indices = AppContext.getDatabaseManager().performSearchRequest(sSearchQuery, 40);
 113         for(int i = 0; i < indices.length; i++) {
 114             SearchTarget target = new SearchTarget(indices[i].getTarget());
 115             AppSearchListItem item = new AppSearchListItem(indices[i].getTitle(), indices[i].getDescription(), target);
 116             searchResultItems.add(item);
 117         }
 118         if(appSearchAdapter != null)
 119             appSearchAdapter.notifyDataSetChanged();
 120
 121     }
 122
 123     private void navigateToResult(AppSearchListItem result) {
 124         SearchTarget target = result.getTarget();
 125
 126         target.navigate(AppContext.getNavigationManager());
 127     }
 128
 129 }