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.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 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);
                
                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);
                
                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 );
                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();
                                                StationList.this.finish();
                                        }                                                       
                                });
                                
                                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.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.util.Log;
23	import android.view.ContextMenu;
24	import android.view.LayoutInflater;
25	import android.view.Menu;
26	import android.view.MenuItem;
27	import android.view.View;
28	import android.view.ContextMenu.ContextMenuInfo;
29	import android.view.View.OnCreateContextMenuListener;
30	import android.widget.AdapterView;
31	import android.widget.EditText;
32	import android.widget.ListView;
33	import android.widget.Toast;
34	import dk.thoerup.traininfo.provider.ProviderFactory;
35	import dk.thoerup.traininfo.provider.StationProvider;
36	import dk.thoerup.traininfo.stationmap.GeoPair;
37	import dk.thoerup.traininfo.stationmap.StationMapView;
38	import dk.thoerup.traininfo.util.IntSet;
39	import dk.thoerup.traininfo.util.MessageBox;
40
41	import static dk.thoerup.traininfo.R.string.*;
42
43	public class StationList extends ListActivity {
44	public static final int GOTLOCATION = 1001;
45	public static final int GOTSTATIONLIST = 1002;
46	public static final int NOPROVIDER = 1003;
47	public static final int LOCATIONFIXTIMEOUT = 1004;
48
49	public static final int OPTIONS_MAP = 2003;
50	public static final int OPTIONS_GPSINFO = 2004;
51
52
53
54
55	public static final int DLG_PROGRESS = 3001;
56	public static final int DLG_STATIONNAME = 3002;
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	if (savedInstanceState == null) {
119
120
121	switch (listType) {
122	case ListNearest:
123	startLookup();
124	break;
125	case ListSearch:
126	this.showDialogSafe(DLG_STATIONNAME);
127	break;
128	case ListFavorites:
129	startFavoriteLookup();
130	break;
131	default:
132	// Not possible !?!
133	}
134
135	} else {
136	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
137	adapter.setStations(stations);
138	location = (GeoPair) savedInstanceState.getSerializable("location");
139	}
140
141	}
142	protected void setTitle() {
143	String dialogTitle = getResources().getString(app_name);
144	switch (listType) {
145	case ListNearest:
146	dialogTitle += " - " + getString(stationlist_nearbystations);
147	break;
148	case ListSearch:
149	dialogTitle += " - " + getString(stationlist_search);
150	break;
151	case ListFavorites:
152	dialogTitle += " - " + getString(stationlist_favorites);
153	break;
154	default:
155	dialogTitle = "";//not possible
156	}
157
158	setTitle(dialogTitle);
159
160	}
161
162
163	/* these 3 dialogs helper functions are very rude and ugly hack
164	* to remove these auto-reported exceptions
165	* - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
166	* - java.lang.IllegalArgumentException: View not attached to window manager
167	*/
168
169	public void showDialogSafe(int id) {
170	try {
171	showDialog(id);
172	} catch (Exception e) {
173	Log.e("StationList", "showDialog failed", e);
174	}
175	}
176
177	public void dismissDialogSafe(int id) {
178	try {
179	dismissDialog(id);
180	} catch (Exception e) {
181	Log.e("StationList", "dismissDialog failed", e);
182	}
183	}
184	public void dismissDialogSafe(Dialog dlg) {
185	try {
186	dlg.dismiss();
187	} catch (Exception e) {
188	Log.e("StationList", "dismissDialog failed", e);
189	}
190	}
191
192	public void builderShowSafe(AlertDialog.Builder builder) {
193	try {
194	builder.show();
195	} catch (Exception e) {
196	Log.e("StationList", "builder.show() failed", e);
197	}
198
199	}
200	/* EOF rude and ugly dialog hack */
201
202
203
204	@Override
205	public void onSaveInstanceState(Bundle outState)
206	{
207	if (dialog != null && dialog.isShowing())
208	dialog.dismiss();
209	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
210	outState.putSerializable("location", location);
211
212	}
213
214
215
216	@Override
217	public boolean onCreateOptionsMenu(Menu menu) {
218	MenuItem item;
219
220	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
221	item.setIcon(android.R.drawable.ic_menu_mapmode);
222
223	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
224	item.setIcon(android.R.drawable.ic_menu_mapmode);
225
226	return true;
227	}
228
229	@Override
230	public boolean onOptionsItemSelected(MenuItem item) {
231	boolean retval = true;
232
233	//TODO: Cleanup
234	switch (item.getItemId()) {
235	case OPTIONS_MAP:
236
237	Intent intent = new Intent(this,StationMapView.class);
238
239	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
240	for (StationBean st : stations ) {
241	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
242	}
243
244	intent.putExtra("stations", stationPoints);
245
246	startActivity(intent);
247	break;
248	case OPTIONS_GPSINFO:
249	Location loc = locationLookup.getLocation();
250	StringBuffer message = new StringBuffer();
251	message.append( getString(stationlist_locationinfo) ).append(":\n");
252	if (loc != null) {
253	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
254	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
255	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
256	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
257	} else {
258	message.append( getString(stationlist_nolocation) );
259	}
260
261	MessageBox.showMessage(this, message.toString());
262	break;
263	default:
264	retval = super.onOptionsItemSelected(item);
265	}
266
267	return retval;
268	}
269
270
271
272	@Override
273	public boolean onContextItemSelected(MenuItem item) {
274	contextMenu.onContextItemSelected(item);
275	return true;
276
277
278	}
279
280	public void showMessageAndClose(String message) {
281	AlertDialog.Builder builder = new AlertDialog.Builder(this);
282	builder.setMessage(message)
283	.setCancelable(false)
284	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
285	public void onClick(DialogInterface dialog, int id) {
286	dialog.dismiss();
287	StationList.this.finish();
288	}
289	})
290	.show();
291	}
292
293
294
295
296	@Override
297	protected Dialog onCreateDialog(int id) {
298	switch (id) {
299	case DLG_PROGRESS:
300	ProgressDialog dlg = new ProgressDialog(this);
301	dlg.setMessage( getString(stationlist_waitforlocation) );
302	dlg.setCancelable(false);
303	return dlg;
304	case DLG_STATIONNAME:
305	LayoutInflater factory = LayoutInflater.from(this);
306	final View rootView = factory.inflate(R.layout.textinput, null);
307
308
309	AlertDialog.Builder builder = new AlertDialog.Builder(this);
310
311	builder.setTitle( getString(stationlist_stationsearch) );
312	builder.setView(rootView);
313	builder.setCancelable(true);
314	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
315	public void onClick(DialogInterface dialog, int which) {
316	EditText et = (EditText) rootView.findViewById(R.id.EditText);
317	dialog.dismiss();
318	String search = et.getText().toString().trim();
319	if (search.length() >= 2) {
320	startNameSearch(search);
321	} else {
322	showMessageAndClose( getString(stationlist_twocharmin) );
323	}
324	}
325	});
326	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
327	public void onClick(DialogInterface dialog, int which) {
328	dialog.dismiss();
329	StationList.this.finish(); // Close this Activity
330	}
331	});
332	return builder.create();
333
334	default:
335	return super.onCreateDialog(id);
336	}
337
338	}
339
340
341	@Override
342	protected void onPrepareDialog(int id, Dialog dialog) {
343	super.onPrepareDialog(id, dialog);
344	switch (id) {
345	case DLG_PROGRESS:
346	this.dialog = (ProgressDialog) dialog;
347	if (!dialogMessage.equals("")) {
348	this.dialog.setMessage(dialogMessage);
349	dialogMessage = "";
350	}
351	break;
352	}
353	}
354
355	@Override
356	protected void onListItemClick(ListView l, View v, int position, long id) {
357	super.onListItemClick(l, v, position, id);
358
359	StationBean station = stations.get(position);
360
361	if (isLaunchedforShortcut == true) {
362	Intent i = new Intent();
363	i.putExtra("station", station);
364	setResult(Activity.RESULT_OK, i);
365	finish();
366	} else {
367	Intent intent = new Intent(this, DepartureList.class);
368	intent.putExtra("stationbean", station);
369	startActivity(intent);
370	}
371	}
372
373	/////////////////////////////////////////////////////////////
374	//
375
376	public void startLookup() {
377	isRunning = true;
378	dialogMessage = getString( stationlist_waitforlocation );
379	showDialogSafe(DLG_PROGRESS);
380
381	locationLookup.locateStations();
382	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
383	}
384
385	void startNameSearch(String name) {
386	dialogMessage = getString( stationlist_findbyname );
387	showDialogSafe(DLG_PROGRESS);
388
389	findStationsTask = new FindStationsTask();
390	findStationsTask.searchByName(name);
391	findStationsTask.execute();
392
393	}
394
395	public void startFavoriteLookup() {
396
397	if (favorites.size() > 0) {
398	dialogMessage = getString( stationlist_loadfavorites );
399	showDialogSafe(DLG_PROGRESS);
400
401	findStationsTask = new FindStationsTask();
402	findStationsTask.searchByIds( favorites.toString() );
403	findStationsTask.execute();
404	} else {
405	showMessageAndClose( getString( stationlist_nofavorites ) );
406	}
407	}
408
409
410
411	void startLocatorTask()
412	{
413	dialogMessage = getString( stationlist_findingnearby );
414	showDialogSafe(DLG_PROGRESS);
415
416	findStationsTask = new FindStationsTask();
417	findStationsTask.searchByLocation( locationLookup.getLocation() );
418	findStationsTask.execute();
419	}
420
421
422	////////////////////////////////////////////////////////////////////////////
423	// Inner classes
424
425	class StationsFetchedHandler extends Handler {
426	@Override
427	public void handleMessage(Message msg) {
428
429	switch (msg.what) {
430	case GOTLOCATION:
431	dismissDialogSafe(DLG_PROGRESS);
432
433	startLocatorTask();
434	location = GeoPair.fromLocation( locationLookup.getLocation() );
435
436	break;
437
438	case NOPROVIDER:
439	dismissDialogSafe(DLG_PROGRESS);
440	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
441	break;
442	case LOCATIONFIXTIMEOUT:
443	if (isRunning) {
444	locationLookup.stopSearch();
445	if (locationLookup.hasLocation()) {
446	stationsFetched.sendEmptyMessage( GOTLOCATION );
447	} else {
448	dismissDialogSafe(DLG_PROGRESS);
449
450	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
451	builder.setMessage( getString( stationlist_gpstimeout) );
452	builder.setCancelable(true);
453	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
454	public void onClick(DialogInterface dialog, int id) {
455	dialog.dismiss();
456	startLookup();
457
458	}
459	});
460	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
461	public void onClick(DialogInterface dialog, int id) {
462	dialog.dismiss();
463	}
464	});
465	builderShowSafe(builder); // builder.show()
466
467	}
468	}
469	break;
470	}
471	isRunning = false;
472	}
473	};
474
475
476	class FindStationsTask extends AsyncTask<Void,Void,Void> {
477
478	LookupMethod method = LookupMethod.MethodNone;
479	boolean success;
480	String name;
481	Location loc;
482	String ids;
483
484	public void searchByName(String n) {
485
486	method = LookupMethod.ByName;
487	name = n;
488	}
489
490	public void searchByLocation(Location l) {
491	method = LookupMethod.ByLocation;
492	loc = l;
493	}
494
495	public void searchByIds(String id) {
496
497	method = LookupMethod.ByList;
498	ids = id;
499	}
500
501	@Override
502	protected void onPreExecute() {
503
504	if (method.equals(LookupMethod.MethodNone))
505	throw new RuntimeException("Method not set");
506	super.onPreExecute();
507	}
508
509	@Override
510	protected Void doInBackground(Void... params) {
511
512	switch (method) {
513	case ByLocation:
514	success = stationProvider.lookupStations(loc);
515	break;
516	case ByName:
517	success = stationProvider.lookupStationsByName(name);
518	break;
519	case ByList:
520	success = stationProvider.lookupStationsByIds(ids);
521	break;
522	default:
523	success = false; // not possible
524	}
525
526
527	return null;
528	}
529
530	@Override
531	protected void onPostExecute(Void result) {
532	super.onPostExecute(result);
533	dismissDialogSafe(dialog);
534
535
536	if (success) {
537	if (stationProvider.getStations().size() == 0) {
538	showMessageAndClose(getString(stationlist_nostations));
539	}
540	stations = stationProvider.getStations();
541	adapter.setStations( stations );
542
543	} else { //communication or parse errors
544	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
545	builder.setMessage(getString(stationlist_nearbyerror));
546	builder.setCancelable(true);
547	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
548	public void onClick(DialogInterface dialog, int id) {
549	dialog.dismiss();
550
551	Runnable runner = null;
552	switch (method) {
553	case ByLocation:
554	runner = new Runnable() {
555	@Override
556	public void run() {
557	startLocatorTask();
558	}
559	};
560	break;
561	case ByName:
562	runner = new Runnable() {
563	@Override
564	public void run() {
565	startNameSearch( FindStationsTask.this.name );
566	}
567	};
568	break;
569	case ByList:
570	runner = new Runnable() {
571	@Override
572	public void run() {
573	startFavoriteLookup();
574	}
575	};
576	break;
577	}
578
579	stationsFetched.post( runner );
580	}
581	});
582	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
583	public void onClick(DialogInterface dialog, int id) {
584	dialog.dismiss();
585	StationList.this.finish();
586	}
587	});
588
589	builderShowSafe(builder); // builder.show()
590	}
591	}
592	}
593
594
595	class FavoritesMenu implements OnCreateContextMenuListener {
596	private final static int FAVORITES_ADD = 9001;
597	private final static int FAVORITES_REMOVE = 9002;
598
599	private int selectedPosition;
600
601
602	@Override
603	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
604
605	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
606	selectedPosition = info.position;
607	int stationID = stations.get(selectedPosition).getId();
608
609	if (!favorites.contains(stationID)) {
610	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
611	} else {
612	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
613	}
614
615	}
616
617	public void onContextItemSelected(MenuItem item) {
618	StationBean sb = stations.get(selectedPosition);
619
620	int stationID = sb.getId();
621	if (item.getItemId() == FAVORITES_ADD) {
622	favorites.add(stationID);
623	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
624	} else {
625
626	favorites.remove(stationID);
627	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
628
629
630	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
631	stations.remove(selectedPosition);
632	adapter.notifyDataSetChanged();
633	}
634	}
635	Editor ed = prefs.edit();
636	ed.putString("favorites", favorites.toString());
637	ed.commit();
638	}
639	}
640	}