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.util.Log;
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.showDialogSafe(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);
                
        }
        
        
        /* these 3 dialogs helper functions are very rude and ugly hack
         * to remove these auto-reported exceptions 
         * - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
         * - java.lang.IllegalArgumentException: View not attached to window manager 
         */
        
        public void showDialogSafe(int id) {
                try {
                        showDialog(id);
                } catch (Exception e) {
                        Log.e("StationList", "showDialog failed", e);
                }
        }
        
        public void dismissDialogSafe(int id) {
                try {
                        dismissDialog(id);
                } catch (Exception e) {
                        Log.e("StationList", "dismissDialog failed", e);
                }
        }
        public void dismissDialogSafe(Dialog dlg) {
                try {
                        dlg.dismiss();
                } catch (Exception e) {
                        Log.e("StationList", "dismissDialog failed", e);
                }
        }
        
        public void builderShowSafe(AlertDialog.Builder builder) {
                try {
                        builder.show();
                } catch (Exception e) {
                        Log.e("StationList", "builder.show() failed", e);
                }
                
        }
        /* EOF rude and ugly dialog hack */
        

    @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());
                        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);
                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("stationbean", station);
                startActivity(intent);
        }

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

        public void startLookup() {
                isRunning = true;               
                dialogMessage = getString( stationlist_waitforlocation );
                showDialogSafe(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialogSafe(DLG_PROGRESS);

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

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


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialogSafe(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:
                                dismissDialogSafe(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialogSafe(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locationLookup.stopSearch();
                                        if (locationLookup.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialogSafe(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();
                                                        }                                                       
                                                });
                                                builderShowSafe(builder); // 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) {
                        
                        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:
                                success = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                success = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                success = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                success = false; // not possible        
                        }
                        
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dismissDialogSafe(dialog);
                        
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }
                                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();
                                                
                                                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();
                                        }                                                       
                                });
                                
                                builderShowSafe(builder); // 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.util.Log;
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
52
53
54	public static final int DLG_PROGRESS = 3001;
55	public static final int DLG_STATIONNAME = 3002;
56
57	static enum LookupMethod {
58	ByLocation,
59	ByName,
60	ByList,
61	MethodNone
62	}
63
64
65	String dialogMessage = "";
66	ProgressDialog dialog;
67	LocationLookup locationLookup = null;
68	FindStationsTask findStationsTask;
69	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
70
71	GeoPair location = new GeoPair();
72
73	boolean isRunning = false;
74	List<StationBean> stations = new ArrayList<StationBean>();
75
76	StationProvider stationProvider = ProviderFactory.getStationProvider();
77
78	StationListAdapter adapter = null;
79
80	FavoritesMenu contextMenu = new FavoritesMenu();
81	IntSet favorites = new IntSet();
82
83	WelcomeScreen.ListType listType;
84	SharedPreferences prefs;
85
86	///////////////////////////////////////////////////////////////////////////////////////////
87	//Activity call backs
88
89	@SuppressWarnings("unchecked")
90	@Override
91	public void onCreate(Bundle savedInstanceState) {
92	super.onCreate(savedInstanceState);
93	setContentView(R.layout.stationlist);
94
95
96	adapter = new StationListAdapter(this);
97	setListAdapter(adapter);
98
99	ListView lv = getListView();
100	lv.setOnCreateContextMenuListener(contextMenu);
101
102	locationLookup = new LocationLookup(this, stationsFetched);
103
104
105	prefs = getSharedPreferences("TrainStation", 0);
106	String favoriteString = prefs.getString("favorites", "");
107	if (! favoriteString.equals("") ) {
108	favorites.fromString(favoriteString);
109	}
110
111	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
112	setTitle();
113
114	if (savedInstanceState == null) {
115
116
117	switch (listType) {
118	case ListNearest:
119	startLookup();
120	break;
121	case ListSearch:
122	this.showDialogSafe(DLG_STATIONNAME);
123	break;
124	case ListFavorites:
125	startFavoriteLookup();
126	break;
127	default:
128	// Not possible !?!
129	}
130
131	} else {
132	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
133	adapter.setStations(stations);
134	location = (GeoPair) savedInstanceState.getSerializable("location");
135	}
136
137	}
138	protected void setTitle() {
139	String dialogTitle = getResources().getString(app_name);
140	switch (listType) {
141	case ListNearest:
142	dialogTitle += " - " + getString(stationlist_nearbystations);
143	break;
144	case ListSearch:
145	dialogTitle += " - " + getString(stationlist_search);
146	break;
147	case ListFavorites:
148	dialogTitle += " - " + getString(stationlist_favorites);
149	break;
150	default:
151	dialogTitle = "";//not possible
152	}
153
154	setTitle(dialogTitle);
155
156	}
157
158
159	/* these 3 dialogs helper functions are very rude and ugly hack
160	* to remove these auto-reported exceptions
161	* - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
162	* - java.lang.IllegalArgumentException: View not attached to window manager
163	*/
164
165	public void showDialogSafe(int id) {
166	try {
167	showDialog(id);
168	} catch (Exception e) {
169	Log.e("StationList", "showDialog failed", e);
170	}
171	}
172
173	public void dismissDialogSafe(int id) {
174	try {
175	dismissDialog(id);
176	} catch (Exception e) {
177	Log.e("StationList", "dismissDialog failed", e);
178	}
179	}
180	public void dismissDialogSafe(Dialog dlg) {
181	try {
182	dlg.dismiss();
183	} catch (Exception e) {
184	Log.e("StationList", "dismissDialog failed", e);
185	}
186	}
187
188	public void builderShowSafe(AlertDialog.Builder builder) {
189	try {
190	builder.show();
191	} catch (Exception e) {
192	Log.e("StationList", "builder.show() failed", e);
193	}
194
195	}
196	/* EOF rude and ugly dialog hack */
197
198
199
200	@Override
201	public void onSaveInstanceState(Bundle outState)
202	{
203	if (dialog != null && dialog.isShowing())
204	dialog.dismiss();
205	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
206	outState.putSerializable("location", location);
207
208	}
209
210
211
212	@Override
213	public boolean onCreateOptionsMenu(Menu menu) {
214	MenuItem item;
215
216	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
217	item.setIcon(android.R.drawable.ic_menu_mapmode);
218
219	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
220	item.setIcon(android.R.drawable.ic_menu_mapmode);
221
222	return true;
223	}
224
225	@Override
226	public boolean onOptionsItemSelected(MenuItem item) {
227	boolean retval = true;
228
229	//TODO: Cleanup
230	switch (item.getItemId()) {
231	case OPTIONS_MAP:
232
233	Intent intent = new Intent(this,StationMapView.class);
234
235	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
236	for (StationBean st : stations ) {
237	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
238	}
239
240	intent.putExtra("stations", stationPoints);
241
242	startActivity(intent);
243	break;
244	case OPTIONS_GPSINFO:
245	Location loc = locationLookup.getLocation();
246	StringBuffer message = new StringBuffer();
247	message.append( getString(stationlist_locationinfo) ).append(":\n");
248	if (loc != null) {
249	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
250	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
251	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
252	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
253	} else {
254	message.append( getString(stationlist_nolocation) );
255	}
256
257	MessageBox.showMessage(this, message.toString());
258	break;
259	default:
260	retval = super.onOptionsItemSelected(item);
261	}
262
263	return retval;
264	}
265
266
267
268	@Override
269	public boolean onContextItemSelected(MenuItem item) {
270	contextMenu.onContextItemSelected(item);
271	return true;
272
273
274	}
275
276	public void showMessageAndClose(String message) {
277	AlertDialog.Builder builder = new AlertDialog.Builder(this);
278	builder.setMessage(message)
279	.setCancelable(false)
280	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
281	public void onClick(DialogInterface dialog, int id) {
282	dialog.dismiss();
283	StationList.this.finish();
284	}
285	})
286	.show();
287	}
288
289
290
291
292	@Override
293	protected Dialog onCreateDialog(int id) {
294	switch (id) {
295	case DLG_PROGRESS:
296	ProgressDialog dlg = new ProgressDialog(this);
297	dlg.setMessage( getString(stationlist_waitforlocation) );
298	dlg.setCancelable(false);
299	return dlg;
300	case DLG_STATIONNAME:
301	LayoutInflater factory = LayoutInflater.from(this);
302	final View rootView = factory.inflate(R.layout.textinput, null);
303
304
305	AlertDialog.Builder builder = new AlertDialog.Builder(this);
306
307	builder.setTitle( getString(stationlist_stationsearch) );
308	builder.setView(rootView);
309	builder.setCancelable(true);
310	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
311	public void onClick(DialogInterface dialog, int which) {
312	EditText et = (EditText) rootView.findViewById(R.id.EditText);
313	dialog.dismiss();
314	String search = et.getText().toString().trim();
315	if (search.length() >= 2) {
316	startNameSearch(search);
317	} else {
318	showMessageAndClose( getString(stationlist_twocharmin) );
319	}
320	}
321	});
322	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
323	public void onClick(DialogInterface dialog, int which) {
324	dialog.dismiss();
325	StationList.this.finish(); // Close this Activity
326	}
327	});
328	return builder.create();
329
330	default:
331	return super.onCreateDialog(id);
332	}
333
334	}
335
336
337	@Override
338	protected void onPrepareDialog(int id, Dialog dialog) {
339	super.onPrepareDialog(id, dialog);
340	switch (id) {
341	case DLG_PROGRESS:
342	this.dialog = (ProgressDialog) dialog;
343	if (!dialogMessage.equals("")) {
344	this.dialog.setMessage(dialogMessage);
345	dialogMessage = "";
346	}
347	break;
348	}
349	}
350
351	@Override
352	protected void onListItemClick(ListView l, View v, int position, long id) {
353	super.onListItemClick(l, v, position, id);
354
355	StationBean station = stations.get(position);
356
357	Intent intent = new Intent(this, DepartureList.class);
358	intent.putExtra("stationbean", station);
359	startActivity(intent);
360	}
361
362	/////////////////////////////////////////////////////////////
363	//
364
365	public void startLookup() {
366	isRunning = true;
367	dialogMessage = getString( stationlist_waitforlocation );
368	showDialogSafe(DLG_PROGRESS);
369
370	locationLookup.locateStations();
371	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
372	}
373
374	void startNameSearch(String name) {
375	dialogMessage = getString( stationlist_findbyname );
376	showDialogSafe(DLG_PROGRESS);
377
378	findStationsTask = new FindStationsTask();
379	findStationsTask.searchByName(name);
380	findStationsTask.execute();
381
382	}
383
384	public void startFavoriteLookup() {
385
386	if (favorites.size() > 0) {
387	dialogMessage = getString( stationlist_loadfavorites );
388	showDialogSafe(DLG_PROGRESS);
389
390	findStationsTask = new FindStationsTask();
391	findStationsTask.searchByIds( favorites.toString() );
392	findStationsTask.execute();
393	} else {
394	showMessageAndClose( getString( stationlist_nofavorites ) );
395	}
396	}
397
398
399
400	void startLocatorTask()
401	{
402	dialogMessage = getString( stationlist_findingnearby );
403	showDialogSafe(DLG_PROGRESS);
404
405	findStationsTask = new FindStationsTask();
406	findStationsTask.searchByLocation( locationLookup.getLocation() );
407	findStationsTask.execute();
408	}
409
410
411	////////////////////////////////////////////////////////////////////////////
412	// Inner classes
413
414	class StationsFetchedHandler extends Handler {
415	@Override
416	public void handleMessage(Message msg) {
417
418	switch (msg.what) {
419	case GOTLOCATION:
420	dismissDialogSafe(DLG_PROGRESS);
421
422	startLocatorTask();
423	location = GeoPair.fromLocation( locationLookup.getLocation() );
424
425	break;
426
427	case NOPROVIDER:
428	dismissDialogSafe(DLG_PROGRESS);
429	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
430	break;
431	case LOCATIONFIXTIMEOUT:
432	if (isRunning) {
433	locationLookup.stopSearch();
434	if (locationLookup.hasLocation()) {
435	stationsFetched.sendEmptyMessage( GOTLOCATION );
436	} else {
437	dismissDialogSafe(DLG_PROGRESS);
438
439	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
440	builder.setMessage( getString( stationlist_gpstimeout) );
441	builder.setCancelable(true);
442	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
443	public void onClick(DialogInterface dialog, int id) {
444	dialog.dismiss();
445	startLookup();
446
447	}
448	});
449	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
450	public void onClick(DialogInterface dialog, int id) {
451	dialog.dismiss();
452	}
453	});
454	builderShowSafe(builder); // builder.show()
455
456	}
457	}
458	break;
459	}
460	isRunning = false;
461	}
462	};
463
464
465	class FindStationsTask extends AsyncTask<Void,Void,Void> {
466
467	LookupMethod method = LookupMethod.MethodNone;
468	boolean success;
469	String name;
470	Location loc;
471	String ids;
472
473	public void searchByName(String n) {
474
475	method = LookupMethod.ByName;
476	name = n;
477	}
478
479	public void searchByLocation(Location l) {
480	method = LookupMethod.ByLocation;
481	loc = l;
482	}
483
484	public void searchByIds(String id) {
485
486	method = LookupMethod.ByList;
487	ids = id;
488	}
489
490	@Override
491	protected void onPreExecute() {
492
493	if (method.equals(LookupMethod.MethodNone))
494	throw new RuntimeException("Method not set");
495	super.onPreExecute();
496	}
497
498	@Override
499	protected Void doInBackground(Void... params) {
500
501	switch (method) {
502	case ByLocation:
503	success = stationProvider.lookupStations(loc);
504	break;
505	case ByName:
506	success = stationProvider.lookupStationsByName(name);
507	break;
508	case ByList:
509	success = stationProvider.lookupStationsByIds(ids);
510	break;
511	default:
512	success = false; // not possible
513	}
514
515
516	return null;
517	}
518
519	@Override
520	protected void onPostExecute(Void result) {
521	super.onPostExecute(result);
522	dismissDialogSafe(dialog);
523
524
525	if (success) {
526	if (stationProvider.getStations().size() == 0) {
527	showMessageAndClose(getString(stationlist_nostations));
528	}
529	stations = stationProvider.getStations();
530	adapter.setStations( stations );
531
532	} else { //communication or parse errors
533	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
534	builder.setMessage(getString(stationlist_nearbyerror));
535	builder.setCancelable(true);
536	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
537	public void onClick(DialogInterface dialog, int id) {
538	dialog.dismiss();
539
540	Runnable runner = null;
541	switch (method) {
542	case ByLocation:
543	runner = new Runnable() {
544	@Override
545	public void run() {
546	startLocatorTask();
547	}
548	};
549	break;
550	case ByName:
551	runner = new Runnable() {
552	@Override
553	public void run() {
554	startNameSearch( FindStationsTask.this.name );
555	}
556	};
557	break;
558	case ByList:
559	runner = new Runnable() {
560	@Override
561	public void run() {
562	startFavoriteLookup();
563	}
564	};
565	break;
566	}
567
568	stationsFetched.post( runner );
569	}
570	});
571	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
572	public void onClick(DialogInterface dialog, int id) {
573	dialog.dismiss();
574	}
575	});
576
577	builderShowSafe(builder); // builder.show()
578	}
579	}
580	}
581
582
583	class FavoritesMenu implements OnCreateContextMenuListener {
584	private final static int FAVORITES_ADD = 9001;
585	private final static int FAVORITES_REMOVE = 9002;
586
587	private int selectedPosition;
588
589
590	@Override
591	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
592
593	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
594	selectedPosition = info.position;
595	int stationID = stations.get(selectedPosition).getId();
596
597	if (!favorites.contains(stationID)) {
598	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
599	} else {
600	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
601	}
602
603	}
604
605	public void onContextItemSelected(MenuItem item) {
606	StationBean sb = stations.get(selectedPosition);
607
608	int stationID = sb.getId();
609	if (item.getItemId() == FAVORITES_ADD) {
610	favorites.add(stationID);
611	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
612	} else {
613
614	favorites.remove(stationID);
615	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
616
617
618	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
619	stations.remove(selectedPosition);
620	adapter.notifyDataSetChanged();
621	}
622	}
623	Editor ed = prefs.edit();
624	ed.putString("favorites", favorites.toString());
625	ed.commit();
626	}
627	}
628	}