thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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


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;
        
        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 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();
                
                if (savedInstanceState == null) {

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:
                                this.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");
                }
                
        }
        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( loc.getLatitude()).append("\n");
                                message.append( getString(stationlist_longitude) ).append( loc.getLongitude() ).append("\n");
                        } else {
                                message.append( getString(stationlist_nolocation) );
                        }                       
                        
                        MessageBox.showMessage(this, message.toString());
                        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();
                                        if (et.getText().toString().length() >= 2) {
                                                startNameSearch(et.getText().toString());
                                        } 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);
                
                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, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialog(DLG_PROGRESS);

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

                        findStationsTask = new FindStationsTask();
                        findStationsTask.searchByIds(favorites.toString(), locationLookup.getLocation());
                        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();     
        }
        

        /* TODO: Remove this no longer needed function
        String lookupAddress(double latitude, double longitude) {
                
                Geocoder coder = new Geocoder(this, new Locale("da"));
                StringBuilder sb = new StringBuilder();
                Log.i("lookupaddr", "" + latitude + "/" + longitude);
                try {
                        List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
                        Address addr = addressList.get(0);
                        
                        
                        int max = addr.getMaxAddressLineIndex();
                        for (int i=0; i<max; i++) {
                                if (i>0)
                                        sb.append(", ");
                                
                                sb.append(addr.getAddressLine(i));
                        }
                        
                        
                } catch (Exception e) {
                        Log.e("DepartureList", "geocoder failed", e);
                }
                
                return sb.toString();
        }*/
        
        
        ////////////////////////////////////////////////////////////////////////////
        // 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) );
                                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;
                boolean success;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n, Location l) {
                        
                        method = LookupMethod.ByName;
                        loc = l;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id, Location l) {
                        
                        method = LookupMethod.ByList;
                        loc = l;
                        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:
                                success = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                success = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                success = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                success = false; // not possible        
                        }
                        
                        
                        Location dummy = new Location("gps");
                        List<StationBean> stations = stationProvider.getStations();
                        
                        for (StationBean station : stations) { 
                                                                
                                if (method.equals(LookupMethod.ByName) || method.equals(LookupMethod.ByList)) {
                                        if (loc != null) { //only do the distance calc if we have a location
                                                dummy.setLatitude(station.getLatitude());
                                                dummy.setLongitude(station.getLongitude());
                                                station.setDistance( (int)loc.distanceTo(dummy) );
                                        } else {
                                                station.setDistance(0);
                                        }
                                }

                        }                                               
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0)
                                        MessageBox.showMessage(StationList.this, getString(stationlist_nostations) ); // this should not be possible !?!
                                stations = stationProvider.getStations();
                                adapter.setStations( stations );                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage(getString(stationlist_nearbyerror));                         
                                builder.setCancelable(true);
                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                stationsFetched.post( new Runnable() {
                                                        @Override
                                                        public void run() {
                                                                startLocatorTask();                                                             
                                                        }
                                                });
                                        }
                                });
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });                                                                                             
                                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.AlertDialog;
8	import android.app.Dialog;
9	import android.app.ListActivity;
10	import android.app.ProgressDialog;
11	import android.content.DialogInterface;
12	import android.content.Intent;
13	import android.content.SharedPreferences;
14	import android.content.SharedPreferences.Editor;
15	import android.location.Location;
16	import android.os.AsyncTask;
17	import android.os.Bundle;
18	import android.os.Handler;
19	import android.os.Message;
20
21	import android.view.ContextMenu;
22	import android.view.LayoutInflater;
23	import android.view.Menu;
24	import android.view.MenuItem;
25	import android.view.View;
26	import android.view.ContextMenu.ContextMenuInfo;
27	import android.view.View.OnCreateContextMenuListener;
28	import android.widget.AdapterView;
29	import android.widget.EditText;
30	import android.widget.ListView;
31	import android.widget.Toast;
32	import dk.thoerup.traininfo.provider.ProviderFactory;
33	import dk.thoerup.traininfo.provider.StationProvider;
34	import dk.thoerup.traininfo.stationmap.GeoPair;
35	import dk.thoerup.traininfo.stationmap.StationMapView;
36	import dk.thoerup.traininfo.util.IntSet;
37	import dk.thoerup.traininfo.util.MessageBox;
38
39	import static dk.thoerup.traininfo.R.string.*;
40
41	public class StationList extends ListActivity {
42	public static final int GOTLOCATION = 1001;
43	public static final int GOTSTATIONLIST = 1002;
44	public static final int NOPROVIDER = 1003;
45	public static final int LOCATIONFIXTIMEOUT = 1004;
46
47	public static final int OPTIONS_MAP = 2003;
48	public static final int OPTIONS_GPSINFO = 2004;
49
50
51
52
53	public static final int DLG_PROGRESS = 3001;
54	public static final int DLG_STATIONNAME = 3002;
55
56	static enum LookupMethod {
57	ByLocation,
58	ByName,
59	ByList,
60	MethodNone
61	}
62
63
64	String dialogMessage = "";
65	ProgressDialog dialog;
66	LocationLookup locationLookup = null;
67	FindStationsTask findStationsTask;
68	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
69
70	GeoPair location = new GeoPair();
71
72	boolean isRunning = false;
73	List<StationBean> stations = new ArrayList<StationBean>();
74
75	StationProvider stationProvider = ProviderFactory.getStationProvider();
76
77	StationListAdapter adapter = null;
78
79	FavoritesMenu contextMenu = new FavoritesMenu();
80	IntSet favorites = new IntSet();
81
82	WelcomeScreen.ListType listType;
83	SharedPreferences prefs;
84
85	///////////////////////////////////////////////////////////////////////////////////////////
86	//Activity call backs
87
88	@SuppressWarnings("unchecked")
89	@Override
90	public void onCreate(Bundle savedInstanceState) {
91	super.onCreate(savedInstanceState);
92	setContentView(R.layout.stationlist);
93
94
95	adapter = new StationListAdapter(this);
96	setListAdapter(adapter);
97
98	ListView lv = getListView();
99	lv.setOnCreateContextMenuListener(contextMenu);
100
101	locationLookup = new LocationLookup(this, stationsFetched);
102
103
104	prefs = getSharedPreferences("TrainStation", 0);
105	String favoriteString = prefs.getString("favorites", "");
106	if (! favoriteString.equals("") ) {
107	favorites.fromString(favoriteString);
108	}
109
110	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
111	setTitle();
112
113	if (savedInstanceState == null) {
114
115
116	switch (listType) {
117	case ListNearest:
118	startLookup();
119	break;
120	case ListSearch:
121	this.showDialog(DLG_STATIONNAME);
122	break;
123	case ListFavorites:
124	startFavoriteLookup();
125	break;
126	default:
127	// Not possible !?!
128	}
129
130	} else {
131	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
132	adapter.setStations(stations);
133	location = (GeoPair) savedInstanceState.getSerializable("location");
134	}
135
136	}
137	protected void setTitle() {
138	String dialogTitle = getResources().getString(app_name);
139	switch (listType) {
140	case ListNearest:
141	dialogTitle += " - " + getString(stationlist_nearbystations);
142	break;
143	case ListSearch:
144	dialogTitle += " - " + getString(stationlist_search);
145	break;
146	case ListFavorites:
147	dialogTitle += " - " + getString(stationlist_favorites);
148	break;
149	default:
150	dialogTitle = "";//not possible
151	}
152
153	setTitle(dialogTitle);
154	}
155
156
157
158
159	@Override
160	public void onSaveInstanceState(Bundle outState)
161	{
162	if (dialog != null && dialog.isShowing())
163	dialog.dismiss();
164	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
165	outState.putSerializable("location", location);
166
167	}
168
169
170
171	@Override
172	public boolean onCreateOptionsMenu(Menu menu) {
173	MenuItem item;
174
175	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
176	item.setIcon(android.R.drawable.ic_menu_mapmode);
177
178	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
179	item.setIcon(android.R.drawable.ic_menu_mapmode);
180
181	return true;
182	}
183
184	@Override
185	public boolean onOptionsItemSelected(MenuItem item) {
186	boolean retval = true;
187
188	//TODO: Cleanup
189	switch (item.getItemId()) {
190	case OPTIONS_MAP:
191
192	Intent intent = new Intent(this,StationMapView.class);
193
194	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
195	for (StationBean st : stations ) {
196	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
197	}
198
199	intent.putExtra("stations", stationPoints);
200
201	startActivity(intent);
202	break;
203	case OPTIONS_GPSINFO:
204	Location loc = locationLookup.getLocation();
205	StringBuffer message = new StringBuffer();
206	message.append( getString(stationlist_locationinfo) ).append(":\n");
207	if (loc != null) {
208	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
209	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
210	message.append( getString(stationlist_latitude) ).append( loc.getLatitude()).append("\n");
211	message.append( getString(stationlist_longitude) ).append( loc.getLongitude() ).append("\n");
212	} else {
213	message.append( getString(stationlist_nolocation) );
214	}
215
216	MessageBox.showMessage(this, message.toString());
217	break;
218	default:
219	retval = super.onOptionsItemSelected(item);
220	}
221
222	return retval;
223	}
224
225
226
227	@Override
228	public boolean onContextItemSelected(MenuItem item) {
229	contextMenu.onContextItemSelected(item);
230	return true;
231
232
233	}
234
235	public void showMessageAndClose(String message) {
236	AlertDialog.Builder builder = new AlertDialog.Builder(this);
237	builder.setMessage(message)
238	.setCancelable(false)
239	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
240	public void onClick(DialogInterface dialog, int id) {
241	dialog.dismiss();
242	StationList.this.finish();
243	}
244	})
245	.show();
246	}
247
248
249
250
251	@Override
252	protected Dialog onCreateDialog(int id) {
253	switch (id) {
254	case DLG_PROGRESS:
255	ProgressDialog dlg = new ProgressDialog(this);
256	dlg.setMessage( getString(stationlist_waitforlocation) );
257	dlg.setCancelable(false);
258	return dlg;
259	case DLG_STATIONNAME:
260	LayoutInflater factory = LayoutInflater.from(this);
261	final View rootView = factory.inflate(R.layout.textinput, null);
262
263
264	AlertDialog.Builder builder = new AlertDialog.Builder(this);
265
266	builder.setTitle( getString(stationlist_stationsearch) );
267	builder.setView(rootView);
268	builder.setCancelable(true);
269	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
270	public void onClick(DialogInterface dialog, int which) {
271	EditText et = (EditText) rootView.findViewById(R.id.EditText);
272	dialog.dismiss();
273	if (et.getText().toString().length() >= 2) {
274	startNameSearch(et.getText().toString());
275	} else {
276	showMessageAndClose( getString(stationlist_twocharmin) );
277	}
278	}
279	});
280	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
281	public void onClick(DialogInterface dialog, int which) {
282	dialog.dismiss();
283	StationList.this.finish(); // Close this Activity
284	}
285	});
286	return builder.create();
287
288	default:
289	return super.onCreateDialog(id);
290	}
291
292	}
293
294
295	@Override
296	protected void onPrepareDialog(int id, Dialog dialog) {
297	super.onPrepareDialog(id, dialog);
298	switch (id) {
299	case DLG_PROGRESS:
300	this.dialog = (ProgressDialog) dialog;
301	if (!dialogMessage.equals("")) {
302	this.dialog.setMessage(dialogMessage);
303	dialogMessage = "";
304	}
305	break;
306	}
307	}
308
309	@Override
310	protected void onListItemClick(ListView l, View v, int position, long id) {
311	super.onListItemClick(l, v, position, id);
312
313	StationBean station = stations.get(position);
314
315	Intent intent = new Intent(this, DepartureList.class);
316	intent.putExtra("stationbean", station);
317	startActivity(intent);
318	}
319
320	/////////////////////////////////////////////////////////////
321	//
322
323	public void startLookup() {
324	isRunning = true;
325	dialogMessage = getString( stationlist_waitforlocation );
326	showDialog(DLG_PROGRESS);
327
328	locationLookup.locateStations();
329	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
330	}
331
332	void startNameSearch(String name) {
333	dialogMessage = getString( stationlist_findbyname );
334	showDialog(DLG_PROGRESS);
335
336	findStationsTask = new FindStationsTask();
337	findStationsTask.searchByName(name, locationLookup.getLocation());
338	findStationsTask.execute();
339
340	}
341
342	public void startFavoriteLookup() {
343
344	if (favorites.size() > 0) {
345	dialogMessage = getString( stationlist_loadfavorites );
346	showDialog(DLG_PROGRESS);
347
348	findStationsTask = new FindStationsTask();
349	findStationsTask.searchByIds(favorites.toString(), locationLookup.getLocation());
350	findStationsTask.execute();
351	} else {
352	showMessageAndClose( getString( stationlist_nofavorites ) );
353	}
354	}
355
356
357
358	void startLocatorTask()
359	{
360	dialogMessage = getString( stationlist_findingnearby );
361	showDialog(DLG_PROGRESS);
362
363	findStationsTask = new FindStationsTask();
364	findStationsTask.searchByLocation( locationLookup.getLocation() );
365	findStationsTask.execute();
366	}
367
368
369	/* TODO: Remove this no longer needed function
370	String lookupAddress(double latitude, double longitude) {
371
372	Geocoder coder = new Geocoder(this, new Locale("da"));
373	StringBuilder sb = new StringBuilder();
374	Log.i("lookupaddr", "" + latitude + "/" + longitude);
375	try {
376	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
377	Address addr = addressList.get(0);
378
379
380	int max = addr.getMaxAddressLineIndex();
381	for (int i=0; i<max; i++) {
382	if (i>0)
383	sb.append(", ");
384
385	sb.append(addr.getAddressLine(i));
386	}
387
388
389	} catch (Exception e) {
390	Log.e("DepartureList", "geocoder failed", e);
391	}
392
393	return sb.toString();
394	}*/
395
396
397	////////////////////////////////////////////////////////////////////////////
398	// Inner classes
399
400	class StationsFetchedHandler extends Handler {
401	@Override
402	public void handleMessage(Message msg) {
403
404	switch (msg.what) {
405	case GOTLOCATION:
406	dismissDialog(DLG_PROGRESS);
407
408	startLocatorTask();
409	location = GeoPair.fromLocation( locationLookup.getLocation() );
410
411	break;
412
413	case NOPROVIDER:
414	dismissDialog(DLG_PROGRESS);
415	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
416	break;
417	case LOCATIONFIXTIMEOUT:
418	if (isRunning) {
419	locationLookup.stopSearch();
420	if (locationLookup.hasLocation()) {
421	stationsFetched.sendEmptyMessage( GOTLOCATION );
422	} else {
423	dismissDialog(DLG_PROGRESS);
424
425	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
426	builder.setMessage( getString( stationlist_gpstimeout) );
427	builder.setCancelable(true);
428	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
429	public void onClick(DialogInterface dialog, int id) {
430	dialog.dismiss();
431	startLookup();
432
433	}
434	});
435	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
436	public void onClick(DialogInterface dialog, int id) {
437	dialog.dismiss();
438	}
439	});
440	builder.show();
441
442	}
443	}
444	break;
445	}
446	isRunning = false;
447	}
448	};
449
450
451	class FindStationsTask extends AsyncTask<Void,Void,Void> {
452
453	LookupMethod method = LookupMethod.MethodNone;
454	boolean success;
455	String name;
456	Location loc;
457	String ids;
458
459	public void searchByName(String n, Location l) {
460
461	method = LookupMethod.ByName;
462	loc = l;
463	name = n;
464	}
465
466	public void searchByLocation(Location l) {
467	method = LookupMethod.ByLocation;
468	loc = l;
469	}
470
471	public void searchByIds(String id, Location l) {
472
473	method = LookupMethod.ByList;
474	loc = l;
475	ids = id;
476	}
477
478	@Override
479	protected void onPreExecute() {
480
481	if (method.equals(LookupMethod.MethodNone))
482	throw new RuntimeException("Method not set");
483	super.onPreExecute();
484	}
485
486	@Override
487	protected Void doInBackground(Void... params) {
488
489	switch (method) {
490	case ByLocation:
491	success = stationProvider.lookupStations(loc);
492	break;
493	case ByName:
494	success = stationProvider.lookupStationsByName(name);
495	break;
496	case ByList:
497	success = stationProvider.lookupStationsByIds(ids);
498	break;
499	default:
500	success = false; // not possible
501	}
502
503
504	Location dummy = new Location("gps");
505	List<StationBean> stations = stationProvider.getStations();
506
507	for (StationBean station : stations) {
508
509	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
510	if (loc != null) { //only do the distance calc if we have a location
511	dummy.setLatitude(station.getLatitude());
512	dummy.setLongitude(station.getLongitude());
513	station.setDistance( (int)loc.distanceTo(dummy) );
514	} else {
515	station.setDistance(0);
516	}
517	}
518
519	}
520
521	return null;
522	}
523
524	@Override
525	protected void onPostExecute(Void result) {
526	super.onPostExecute(result);
527	dialog.dismiss();
528
529
530	if (success) {
531	if (stationProvider.getStations().size() == 0)
532	MessageBox.showMessage(StationList.this, getString(stationlist_nostations) ); // this should not be possible !?!
533	stations = stationProvider.getStations();
534	adapter.setStations( stations );
535
536	} else { //communication or parse errors
537	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
538	builder.setMessage(getString(stationlist_nearbyerror));
539	builder.setCancelable(true);
540	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
541	public void onClick(DialogInterface dialog, int id) {
542	dialog.dismiss();
543
544	stationsFetched.post( new Runnable() {
545	@Override
546	public void run() {
547	startLocatorTask();
548	}
549	});
550	}
551	});
552	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
553	public void onClick(DialogInterface dialog, int id) {
554	dialog.dismiss();
555	}
556	});
557	builder.show();
558	}
559	}
560	}
561
562
563	class FavoritesMenu implements OnCreateContextMenuListener {
564	private final static int FAVORITES_ADD = 9001;
565	private final static int FAVORITES_REMOVE = 9002;
566
567	private int selectedPosition;
568
569
570	@Override
571	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
572
573	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
574	selectedPosition = info.position;
575	int stationID = stations.get(selectedPosition).getId();
576
577	if (!favorites.contains(stationID)) {
578	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
579	} else {
580	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
581	}
582
583	}
584
585	public void onContextItemSelected(MenuItem item) {
586	StationBean sb = stations.get(selectedPosition);
587
588	int stationID = sb.getId();
589	if (item.getItemId() == FAVORITES_ADD) {
590	favorites.add(stationID);
591	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
592	} else {
593
594	favorites.remove(stationID);
595	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
596
597
598	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
599	stations.remove(selectedPosition);
600	adapter.notifyDataSetChanged();
601	}
602	}
603	Editor ed = prefs.edit();
604	ed.putString("favorites", favorites.toString());
605	ed.commit();
606	}
607	}
608	}