thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

import java.util.ArrayList;
import java.util.List;


import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.OnCreateContextMenuListener;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;
import dk.thoerup.traininfo.stationmap.GeoPair;
import dk.thoerup.traininfo.stationmap.StationMapView;
import dk.thoerup.traininfo.util.IntSet;
import dk.thoerup.traininfo.util.MessageBox;

import static dk.thoerup.traininfo.R.string.*;

public class StationList extends ListActivity  {
        public static final int GOTLOCATION = 1001;
        public static final int GOTSTATIONLIST = 1002;
        public static final int NOPROVIDER = 1003;
        public static final int LOCATIONFIXTIMEOUT = 1004;
        
        public static final int OPTIONS_MAP = 2003;
        public static final int OPTIONS_GPSINFO = 2004;
        
        public static final int DLG_PROGRESS = 3001;
        public static final int DLG_STATIONNAME = 3002;
        
        
        public static final int GPS_TIMEOUT_MS = 15000; //how long are we willing to wait for gps fix -in milliseconds
        
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locationLookup = null;
        FindStationsTask findStationsTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();

        boolean isLaunchedforShortcut;
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();

        WelcomeScreen.ListType listType;
        SharedPreferences prefs;
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.stationlist);
                
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                ListView lv = getListView();
                lv.setOnCreateContextMenuListener(contextMenu);
                
                locationLookup = new LocationLookup(this, stationsFetched);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
                setTitle();
                
                isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
                
                ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
                
                if (savedInstanceState == null) {

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:                                
                                showDialog(DLG_STATIONNAME); 
                                break;
                        case ListFavorites:
                                startFavoriteLookup();
                                break;
                        default:
                                // Not possible !?!
                        }
                        
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                        location = (GeoPair) savedInstanceState.getSerializable("location");
                }
                
        }
        
        
        @Override
        protected void onDestroy() {
                super.onDestroy();
                
                isRunning = false;
                
                if (locationLookup != null) {
                        locationLookup.stopSearch();
                }
                if (findStationsTask != null) {
                        findStationsTask.cancel(true);
                }               
        }

        
        protected void setTitle() {
                String dialogTitle = getResources().getString(app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - " + getString(stationlist_nearbystations);
                        break;
                case ListSearch:
                        dialogTitle += " - " + getString(stationlist_search);
                        break;
                case ListFavorites:
                        dialogTitle += " - " + getString(stationlist_favorites);
                        break;
                default:
                        dialogTitle = "";//not possible                                 
                }
        
                setTitle(dialogTitle);
                
        }
        
                
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (dialog != null && dialog.isShowing())
                dialog.dismiss();
        outState.putSerializable("stations", (ArrayList<StationBean>) stations);
        outState.putSerializable("location", location);
        
    }
        
        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
                item.setIcon(android.R.drawable.ic_menu_mapmode);               
                
                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;

                //TODO: Cleanup
                switch (item.getItemId()) {
                case OPTIONS_MAP:
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        
                        ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
                        for (StationBean st : stations ) {
                                stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
                        }
                        
                        intent.putExtra("stations", stationPoints);
                        
                        startActivity(intent);
                        break;
                case OPTIONS_GPSINFO:
                        Location loc = locationLookup.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append( getString(stationlist_locationinfo) ).append(":\n");
                        if (loc != null) {
                                message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
                                message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
                                message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
                                message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
                        } else {
                                message.append( getString(stationlist_nolocation) );
                        }                       
                        
                        MessageBox.showMessage(this, message.toString(), false);
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        
        
        @Override
        public boolean onContextItemSelected(MenuItem item) {
                contextMenu.onContextItemSelected(item);
                return true;


        }
        
        public void showMessageAndClose(String message) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage(message)
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                StationList.this.finish();
                        }
                })
                .show();
        }


        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage( getString(stationlist_waitforlocation) );
                        dlg.setCancelable(false);
                        return dlg;                     
                case DLG_STATIONNAME:
                        LayoutInflater factory = LayoutInflater.from(this); 
                        final View rootView = factory.inflate(R.layout.textinput, null);
                        
                        
                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
                        
                        builder.setTitle( getString(stationlist_stationsearch) );
                        builder.setView(rootView);
                        builder.setCancelable(true);
                        builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        EditText et = (EditText) rootView.findViewById(R.id.EditText);
                                        dialog.dismiss();
                                        String search = et.getText().toString().trim();
                                        if (search.length() >= 2) {
                                                startNameSearch(search);
                                        } else {
                                                showMessageAndClose( getString(stationlist_twocharmin) );
                                        }
                                }
                        });
                        builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                        StationList.this.finish(); // Close this Activity
                                }
                        });                     
                        return builder.create();
                        
                default:
                        return super.onCreateDialog(id);                
                }
                
        }
        
        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                switch (id) {
                case DLG_PROGRESS:
                        this.dialog = (ProgressDialog) dialog;
                        if (!dialogMessage.equals("")) {
                                this.dialog.setMessage(dialogMessage);
                                dialogMessage = "";
                        }
                        break;
                }
        }
        
        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
                super.onListItemClick(l, v, position, id);
                                
                StationBean station = stations.get(position);
                
                if (isLaunchedforShortcut == true) {
                        Intent i = new Intent();
                        i.putExtra("station", station);
                        setResult(Activity.RESULT_OK, i);
                        finish();
                } else {                
                        Intent intent = new Intent(this, DepartureList.class);
                        intent.putExtra("stationbean", station);
                        startActivity(intent);
                }
        }

        /////////////////////////////////////////////////////////////
        //

        public void startLookup() {
                isRunning = true;               
                dialogMessage = getString( stationlist_waitforlocation );
                showDialog(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialog(DLG_PROGRESS);

                findStationsTask = new FindStationsTask();
                findStationsTask.searchByName(name);
                findStationsTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        dialogMessage = getString( stationlist_loadfavorites );
                        showDialog(DLG_PROGRESS);

                        findStationsTask = new FindStationsTask();
                        findStationsTask.searchByIds( favorites.toString() );
                        findStationsTask.execute();
                } else {
                        showMessageAndClose( getString( stationlist_nofavorites ) );
                }
        }


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialog(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locationLookup.getLocation() );
                findStationsTask.execute();     
        }
                
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

        class StationsFetchedHandler extends Handler {
                @Override
                public void handleMessage(Message msg) {

                        switch (msg.what) {
                        case GOTLOCATION:
                                dismissDialog(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
                                //StationList.this.finish();
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locationLookup.stopSearch();
                                        if (locationLookup.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialog(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage(  getString( stationlist_gpstimeout) );
                                                builder.setCancelable(true);
                                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                        }                                                       
                                                });
                                                builder.show(); 

                                        }
                                }
                                break;
                        }
                        isRunning = false;
                }
        };

        
        class FindStationsTask extends AsyncTask<Void,Void,Void> {
                
                LookupMethod method = LookupMethod.MethodNone;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n) {
                        
                        method = LookupMethod.ByName;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id) {
                        
                        method = LookupMethod.ByList;
                        ids = id;
                }
                
                @Override
                protected void onPreExecute() {

                        if (method.equals(LookupMethod.MethodNone))
                                throw new RuntimeException("Method not set");
                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {

                        switch (method) {
                        case ByLocation:
                                stations = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                stations = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                stations = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                stations = null; // not possible        
                        }
                        
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        
                        if (stations != null) {                         
                                if (stations.size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }

                                StationList.this.getListView().invalidateViews();
                                adapter.setStations( stations );                                
                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage(getString(stationlist_fetcherror));                          
                                builder.setCancelable(true);
                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                Runnable runner = null;
                                                switch (method) {
                                                case ByLocation:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startLocatorTask();                                                             
                                                                }
                                                        };
                                                        break;
                                                case ByName:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startNameSearch( FindStationsTask.this.name );
                                                                }
                                                        };
                                                        break;
                                                case ByList:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startFavoriteLookup();
                                                                }
                                                        };
                                                        break;
                                                }
                                                
                                                stationsFetched.post( runner );
                                        }
                                });
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                StationList.this.finish();
                                        }                                                       
                                });
                                
                                builder.show(); 
                        }
                }
        }
        
        
        class FavoritesMenu implements OnCreateContextMenuListener {
                private final static int FAVORITES_ADD = 9001;
                private final static int FAVORITES_REMOVE = 9002;
                
                private int selectedPosition;
                
                
                @Override
                public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
                                                
                        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
                        selectedPosition = info.position;
                        int stationID = stations.get(selectedPosition).getId();

                        if (!favorites.contains(stationID)) {
                                menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
                        }
                        
                }
                
                public void onContextItemSelected(MenuItem item) {
                        StationBean sb = stations.get(selectedPosition);
                        
                        int stationID = sb.getId();
                        if (item.getItemId() == FAVORITES_ADD) {
                                favorites.add(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
                        } else {
                                
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
                                
                                
                                if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
                                        stations.remove(selectedPosition);
                                        adapter.notifyDataSetChanged();
                                }
                        }
                        Editor ed = prefs.edit();
                        ed.putString("favorites", favorites.toString());
                        ed.commit();
                }
        }
}
1	package dk.thoerup.traininfo;
2
3	import java.util.ArrayList;
4	import java.util.List;
5
6
7	import android.app.Activity;
8	import android.app.AlertDialog;
9	import android.app.Dialog;
10	import android.app.ListActivity;
11	import android.app.ProgressDialog;
12	import android.content.DialogInterface;
13	import android.content.Intent;
14	import android.content.SharedPreferences;
15	import android.content.SharedPreferences.Editor;
16	import android.location.Location;
17	import android.os.AsyncTask;
18	import android.os.Bundle;
19	import android.os.Handler;
20	import android.os.Message;
21
22	import android.view.ContextMenu;
23	import android.view.LayoutInflater;
24	import android.view.Menu;
25	import android.view.MenuItem;
26	import android.view.View;
27	import android.view.ContextMenu.ContextMenuInfo;
28	import android.view.View.OnCreateContextMenuListener;
29	import android.widget.AdapterView;
30	import android.widget.EditText;
31	import android.widget.ListView;
32	import android.widget.Toast;
33	import dk.thoerup.traininfo.provider.ProviderFactory;
34	import dk.thoerup.traininfo.provider.StationProvider;
35	import dk.thoerup.traininfo.stationmap.GeoPair;
36	import dk.thoerup.traininfo.stationmap.StationMapView;
37	import dk.thoerup.traininfo.util.IntSet;
38	import dk.thoerup.traininfo.util.MessageBox;
39
40	import static dk.thoerup.traininfo.R.string.*;
41
42	public class StationList extends ListActivity {
43	public static final int GOTLOCATION = 1001;
44	public static final int GOTSTATIONLIST = 1002;
45	public static final int NOPROVIDER = 1003;
46	public static final int LOCATIONFIXTIMEOUT = 1004;
47
48	public static final int OPTIONS_MAP = 2003;
49	public static final int OPTIONS_GPSINFO = 2004;
50
51	public static final int DLG_PROGRESS = 3001;
52	public static final int DLG_STATIONNAME = 3002;
53
54
55	public static final int GPS_TIMEOUT_MS = 15000; //how long are we willing to wait for gps fix -in milliseconds
56
57
58	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup locationLookup = null;
69	FindStationsTask findStationsTask;
70	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
71
72	GeoPair location = new GeoPair();
73
74	boolean isLaunchedforShortcut;
75	boolean isRunning = false;
76	List<StationBean> stations = new ArrayList<StationBean>();
77
78	StationProvider stationProvider = ProviderFactory.getStationProvider();
79
80	StationListAdapter adapter = null;
81
82	FavoritesMenu contextMenu = new FavoritesMenu();
83	IntSet favorites = new IntSet();
84
85	WelcomeScreen.ListType listType;
86	SharedPreferences prefs;
87
88	///////////////////////////////////////////////////////////////////////////////////////////
89	//Activity call backs
90
91	@SuppressWarnings("unchecked")
92	@Override
93	public void onCreate(Bundle savedInstanceState) {
94	super.onCreate(savedInstanceState);
95	setContentView(R.layout.stationlist);
96
97
98	adapter = new StationListAdapter(this);
99	setListAdapter(adapter);
100
101	ListView lv = getListView();
102	lv.setOnCreateContextMenuListener(contextMenu);
103
104	locationLookup = new LocationLookup(this, stationsFetched);
105
106
107	prefs = getSharedPreferences("TrainStation", 0);
108	String favoriteString = prefs.getString("favorites", "");
109	if (! favoriteString.equals("") ) {
110	favorites.fromString(favoriteString);
111	}
112
113	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
114	setTitle();
115
116	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
117
118	ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
119
120	if (savedInstanceState == null) {
121
122
123	switch (listType) {
124	case ListNearest:
125	startLookup();
126	break;
127	case ListSearch:
128	showDialog(DLG_STATIONNAME);
129	break;
130	case ListFavorites:
131	startFavoriteLookup();
132	break;
133	default:
134	// Not possible !?!
135	}
136
137	} else {
138	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
139	adapter.setStations(stations);
140	location = (GeoPair) savedInstanceState.getSerializable("location");
141	}
142
143	}
144
145
146
147
148
149
150	@Override
151	protected void onDestroy() {
152	super.onDestroy();
153
154	isRunning = false;
155
156	if (locationLookup != null) {
157	locationLookup.stopSearch();
158	}
159	if (findStationsTask != null) {
160	findStationsTask.cancel(true);
161	}
162	}
163
164
165	protected void setTitle() {
166	String dialogTitle = getResources().getString(app_name);
167	switch (listType) {
168	case ListNearest:
169	dialogTitle += " - " + getString(stationlist_nearbystations);
170	break;
171	case ListSearch:
172	dialogTitle += " - " + getString(stationlist_search);
173	break;
174	case ListFavorites:
175	dialogTitle += " - " + getString(stationlist_favorites);
176	break;
177	default:
178	dialogTitle = "";//not possible
179	}
180
181	setTitle(dialogTitle);
182
183	}
184
185
186
187	@Override
188	public void onSaveInstanceState(Bundle outState)
189	{
190	if (dialog != null && dialog.isShowing())
191	dialog.dismiss();
192	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
193	outState.putSerializable("location", location);
194
195	}
196
197
198
199	@Override
200	public boolean onCreateOptionsMenu(Menu menu) {
201	MenuItem item;
202
203	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
204	item.setIcon(android.R.drawable.ic_menu_mapmode);
205
206	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
207	item.setIcon(android.R.drawable.ic_menu_mapmode);
208
209	return true;
210	}
211
212	@Override
213	public boolean onOptionsItemSelected(MenuItem item) {
214	boolean retval = true;
215
216	//TODO: Cleanup
217	switch (item.getItemId()) {
218	case OPTIONS_MAP:
219
220	Intent intent = new Intent(this,StationMapView.class);
221
222	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
223	for (StationBean st : stations ) {
224	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
225	}
226
227	intent.putExtra("stations", stationPoints);
228
229	startActivity(intent);
230	break;
231	case OPTIONS_GPSINFO:
232	Location loc = locationLookup.getLocation();
233	StringBuffer message = new StringBuffer();
234	message.append( getString(stationlist_locationinfo) ).append(":\n");
235	if (loc != null) {
236	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
237	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
238	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
239	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
240	} else {
241	message.append( getString(stationlist_nolocation) );
242	}
243
244	MessageBox.showMessage(this, message.toString(), false);
245	break;
246	default:
247	retval = super.onOptionsItemSelected(item);
248	}
249
250	return retval;
251	}
252
253
254
255	@Override
256	public boolean onContextItemSelected(MenuItem item) {
257	contextMenu.onContextItemSelected(item);
258	return true;
259
260
261	}
262
263	public void showMessageAndClose(String message) {
264	AlertDialog.Builder builder = new AlertDialog.Builder(this);
265	builder.setMessage(message)
266	.setCancelable(false)
267	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
268	public void onClick(DialogInterface dialog, int id) {
269	dialog.dismiss();
270	StationList.this.finish();
271	}
272	})
273	.show();
274	}
275
276
277
278
279	@Override
280	protected Dialog onCreateDialog(int id) {
281	switch (id) {
282	case DLG_PROGRESS:
283	ProgressDialog dlg = new ProgressDialog(this);
284	dlg.setMessage( getString(stationlist_waitforlocation) );
285	dlg.setCancelable(false);
286	return dlg;
287	case DLG_STATIONNAME:
288	LayoutInflater factory = LayoutInflater.from(this);
289	final View rootView = factory.inflate(R.layout.textinput, null);
290
291
292	AlertDialog.Builder builder = new AlertDialog.Builder(this);
293
294	builder.setTitle( getString(stationlist_stationsearch) );
295	builder.setView(rootView);
296	builder.setCancelable(true);
297	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
298	public void onClick(DialogInterface dialog, int which) {
299	EditText et = (EditText) rootView.findViewById(R.id.EditText);
300	dialog.dismiss();
301	String search = et.getText().toString().trim();
302	if (search.length() >= 2) {
303	startNameSearch(search);
304	} else {
305	showMessageAndClose( getString(stationlist_twocharmin) );
306	}
307	}
308	});
309	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
310	public void onClick(DialogInterface dialog, int which) {
311	dialog.dismiss();
312	StationList.this.finish(); // Close this Activity
313	}
314	});
315	return builder.create();
316
317	default:
318	return super.onCreateDialog(id);
319	}
320
321	}
322
323
324	@Override
325	protected void onPrepareDialog(int id, Dialog dialog) {
326	super.onPrepareDialog(id, dialog);
327	switch (id) {
328	case DLG_PROGRESS:
329	this.dialog = (ProgressDialog) dialog;
330	if (!dialogMessage.equals("")) {
331	this.dialog.setMessage(dialogMessage);
332	dialogMessage = "";
333	}
334	break;
335	}
336	}
337
338	@Override
339	protected void onListItemClick(ListView l, View v, int position, long id) {
340	super.onListItemClick(l, v, position, id);
341
342	StationBean station = stations.get(position);
343
344	if (isLaunchedforShortcut == true) {
345	Intent i = new Intent();
346	i.putExtra("station", station);
347	setResult(Activity.RESULT_OK, i);
348	finish();
349	} else {
350	Intent intent = new Intent(this, DepartureList.class);
351	intent.putExtra("stationbean", station);
352	startActivity(intent);
353	}
354	}
355
356	/////////////////////////////////////////////////////////////
357	//
358
359	public void startLookup() {
360	isRunning = true;
361	dialogMessage = getString( stationlist_waitforlocation );
362	showDialog(DLG_PROGRESS);
363
364	locationLookup.locateStations();
365	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
366	}
367
368	void startNameSearch(String name) {
369	dialogMessage = getString( stationlist_findbyname );
370	showDialog(DLG_PROGRESS);
371
372	findStationsTask = new FindStationsTask();
373	findStationsTask.searchByName(name);
374	findStationsTask.execute();
375
376	}
377
378	public void startFavoriteLookup() {
379
380	if (favorites.size() > 0) {
381	dialogMessage = getString( stationlist_loadfavorites );
382	showDialog(DLG_PROGRESS);
383
384	findStationsTask = new FindStationsTask();
385	findStationsTask.searchByIds( favorites.toString() );
386	findStationsTask.execute();
387	} else {
388	showMessageAndClose( getString( stationlist_nofavorites ) );
389	}
390	}
391
392
393
394	void startLocatorTask()
395	{
396	dialogMessage = getString( stationlist_findingnearby );
397	showDialog(DLG_PROGRESS);
398
399	findStationsTask = new FindStationsTask();
400	findStationsTask.searchByLocation( locationLookup.getLocation() );
401	findStationsTask.execute();
402	}
403
404
405	////////////////////////////////////////////////////////////////////////////
406	// Inner classes
407
408	class StationsFetchedHandler extends Handler {
409	@Override
410	public void handleMessage(Message msg) {
411
412	switch (msg.what) {
413	case GOTLOCATION:
414	dismissDialog(DLG_PROGRESS);
415
416	startLocatorTask();
417	location = GeoPair.fromLocation( locationLookup.getLocation() );
418
419	break;
420
421	case NOPROVIDER:
422	dismissDialog(DLG_PROGRESS);
423	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
424	//StationList.this.finish();
425	break;
426	case LOCATIONFIXTIMEOUT:
427	if (isRunning) {
428	locationLookup.stopSearch();
429	if (locationLookup.hasLocation()) {
430	stationsFetched.sendEmptyMessage( GOTLOCATION );
431	} else {
432	dismissDialog(DLG_PROGRESS);
433
434	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
435	builder.setMessage( getString( stationlist_gpstimeout) );
436	builder.setCancelable(true);
437	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
438	public void onClick(DialogInterface dialog, int id) {
439	dialog.dismiss();
440	startLookup();
441
442	}
443	});
444	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
445	public void onClick(DialogInterface dialog, int id) {
446	dialog.dismiss();
447	}
448	});
449	builder.show();
450
451	}
452	}
453	break;
454	}
455	isRunning = false;
456	}
457	};
458
459
460	class FindStationsTask extends AsyncTask<Void,Void,Void> {
461
462	LookupMethod method = LookupMethod.MethodNone;
463	String name;
464	Location loc;
465	String ids;
466
467	public void searchByName(String n) {
468
469	method = LookupMethod.ByName;
470	name = n;
471	}
472
473	public void searchByLocation(Location l) {
474	method = LookupMethod.ByLocation;
475	loc = l;
476	}
477
478	public void searchByIds(String id) {
479
480	method = LookupMethod.ByList;
481	ids = id;
482	}
483
484	@Override
485	protected void onPreExecute() {
486
487	if (method.equals(LookupMethod.MethodNone))
488	throw new RuntimeException("Method not set");
489	super.onPreExecute();
490	}
491
492	@Override
493	protected Void doInBackground(Void... params) {
494
495	switch (method) {
496	case ByLocation:
497	stations = stationProvider.lookupStations(loc);
498	break;
499	case ByName:
500	stations = stationProvider.lookupStationsByName(name);
501	break;
502	case ByList:
503	stations = stationProvider.lookupStationsByIds(ids);
504	break;
505	default:
506	stations = null; // not possible
507	}
508
509
510	return null;
511	}
512
513	@Override
514	protected void onPostExecute(Void result) {
515	super.onPostExecute(result);
516	dialog.dismiss();
517
518
519	if (stations != null) {
520	if (stations.size() == 0) {
521	showMessageAndClose(getString(stationlist_nostations));
522	}
523
524	StationList.this.getListView().invalidateViews();
525	adapter.setStations( stations );
526
527
528	} else { //communication or parse errors
529	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
530	builder.setMessage(getString(stationlist_fetcherror));
531	builder.setCancelable(true);
532	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
533	public void onClick(DialogInterface dialog, int id) {
534	dialog.dismiss();
535
536	Runnable runner = null;
537	switch (method) {
538	case ByLocation:
539	runner = new Runnable() {
540	@Override
541	public void run() {
542	startLocatorTask();
543	}
544	};
545	break;
546	case ByName:
547	runner = new Runnable() {
548	@Override
549	public void run() {
550	startNameSearch( FindStationsTask.this.name );
551	}
552	};
553	break;
554	case ByList:
555	runner = new Runnable() {
556	@Override
557	public void run() {
558	startFavoriteLookup();
559	}
560	};
561	break;
562	}
563
564	stationsFetched.post( runner );
565	}
566	});
567	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
568	public void onClick(DialogInterface dialog, int id) {
569	dialog.dismiss();
570	StationList.this.finish();
571	}
572	});
573
574	builder.show();
575	}
576	}
577	}
578
579
580	class FavoritesMenu implements OnCreateContextMenuListener {
581	private final static int FAVORITES_ADD = 9001;
582	private final static int FAVORITES_REMOVE = 9002;
583
584	private int selectedPosition;
585
586
587	@Override
588	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
589
590	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
591	selectedPosition = info.position;
592	int stationID = stations.get(selectedPosition).getId();
593
594	if (!favorites.contains(stationID)) {
595	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
596	} else {
597	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
598	}
599
600	}
601
602	public void onContextItemSelected(MenuItem item) {
603	StationBean sb = stations.get(selectedPosition);
604
605	int stationID = sb.getId();
606	if (item.getItemId() == FAVORITES_ADD) {
607	favorites.add(stationID);
608	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
609	} else {
610
611	favorites.remove(stationID);
612	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
613
614
615	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
616	stations.remove(selectedPosition);
617	adapter.notifyDataSetChanged();
618	}
619	}
620	Editor ed = prefs.edit();
621	ed.putString("favorites", favorites.toString());
622	ed.commit();
623	}
624	}
625	}