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.ProgressBar;
  13 import android.widget.TextView;
  14
  15 import java.util.ArrayList;
  16 import java.util.Date;
  17
  18 import de.dhbwloe.campusapp.CampusAppContext;
  19 import de.dhbwloe.campusapp.CampusAppFragment;
  20 import de.dhbwloe.campusapp.R;
  21 import de.dhbwloe.campusapp.search.SearchIndices;
  22 import de.dhbwloe.campusapp.search.SearchTarget;
  23
  24 /**
  25  * A simple {@link Fragment} subclass.
  26  */
  27 public class AppSearchInternal extends CampusAppFragment implements AppSearchProvider {
  28     private String sSearchQuery;
  29     private boolean bQueryExecuted = false;
  30     private AppSearchListAdapter appSearchAdapter;
  31     private ArrayList<AppSearchListItem> searchResultItems = new ArrayList<AppSearchListItem>();
  32
  33     @Override
  34     public void onCreate(Bundle savedInstanceState) {
  35         Log.i("AppSearchInternal", "Event: onCreate");
  36         super.onCreate(savedInstanceState);
  37         Bundle savedState;
  38         if((savedState = getArguments()) != null)
  39             sSearchQuery = savedState.getString("query");
  40         else if(savedInstanceState != null && (savedState = savedInstanceState.getBundle("SearchInternal")) != null) {
  41             sSearchQuery = savedState.getString("query");
  42             if(savedState.getBoolean("executed")) {
  43                 executeSearch(false);
  44             }
  45         }
  46     }
  47
  48     @Override
  49     public void onSaveInstanceState(Bundle savedInstanceState) {
  50         Log.i("AppSearchInternal", "Event: onSaveInstanceState");
  51         Bundle bundle = new Bundle();
  52         bundle.putString("query", sSearchQuery);
  53         bundle.putBoolean("executed", bQueryExecuted);
  54         savedInstanceState.putBundle("SearchInternal", bundle);
  55         super.onSaveInstanceState(savedInstanceState);
  56     }
  57
  58     private void parseIstanceState(Bundle bundle) {
  59         if(sSearchQuery != null)
  60             return;
  61         Bundle args = getArguments();
  62         if(args != null) {
  63             String queryString = args.getString("query");
  64             if(queryString != null)
  65                 sSearchQuery = queryString;
  66         }
  67         if(sSearchQuery == null && bundle != null) {
  68             String queryString = bundle.getString("query");
  69             if(queryString != null)
  70                 sSearchQuery = queryString;
  71         }
  72     }
  73
  74     @Override
  75     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  76                              Bundle savedInstanceState) {
  77         Log.i("AppSearchInternal", "Event: onCreateView");
  78         if(AppContext == null)
  79             AppContext = CampusAppContext.getInstance();
  80         oFragmentView = inflater.inflate(R.layout.fragment_appsearch_list, container, false);
  81
  82         parseIstanceState(savedInstanceState);
  83
  84         ListView searchResultList = (ListView) oFragmentView.findViewById(R.id.searchResultItems);
  85         appSearchAdapter = new AppSearchListAdapter(oFragmentView.getContext(), R.layout.fragment_appsearch_listitem, searchResultItems);
  86         searchResultList.setAdapter(appSearchAdapter);
  87
  88         searchResultList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  89             @Override
  90             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
  91                 AppSearchListItem item = searchResultItems.get(position);
  92                 if (item == null)
  93                     return;
  94                 navigateToResult(item);
  95             }
  96         });
  97
  98         return oFragmentView;
  99     }
 100
 101     public void executeSearch(boolean reset) {
 102         if(sSearchQuery == null)
 103             parseIstanceState(null);
 104         Log.i("AppSearchInternal", "Action: executeSearch "+sSearchQuery);
 105         if(AppContext == null)
 106             AppContext = CampusAppContext.getInstance();
 107         if(bQueryExecuted && !reset)
 108             return;
 109         bQueryExecuted = true;
 110
 111         searchResultItems.clear();
 112
 113         SearchIndices[] indices = AppContext.getDatabaseManager().performSearchRequest(sSearchQuery, 40);
 114         for(int i = 0; i < indices.length; i++) {
 115             SearchTarget target = new SearchTarget(indices[i].getTarget());
 116             AppSearchListItem item = new AppSearchListItem(indices[i].getTitle(), indices[i].getDescription(), target);
 117             searchResultItems.add(item);
 118         }
 119         if(appSearchAdapter != null)
 120             appSearchAdapter.notifyDataSetChanged();
 121
 122     }
 123
 124     private void navigateToResult(AppSearchListItem result) {
 125         SearchTarget target = result.getTarget();
 126
 127         target.navigate(AppContext.getNavigationManager());
 128     }
 129
 130 }