git.maemo.org Git - navit-package/blob - navit/android/src/org/navitproject/navit/Navit.java

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2008 Navit Team
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 package org.navitproject.navit;
  21
  22 import android.app.Activity;
  23 import android.widget.TextView;
  24 import android.os.Bundle;
  25 import android.os.Debug;
  26 import android.os.Message;
  27 import android.os.Handler;
  28 import android.os.PowerManager;
  29 import android.content.Context;
  30 import android.content.res.Resources;
  31 import android.util.Log;
  32 import java.util.Locale;
  33 import java.io.File;
  34 import java.io.FileInputStream;
  35 import java.io.FileOutputStream;
  36 import java.io.InputStream;
  37
  38
  39 public class Navit extends Activity implements Handler.Callback
  40 {
  41     public Handler handler;
  42     private PowerManager.WakeLock wl;
  43     private boolean extractRes(String resname, String result)
  44     {
  45         int slash=-1;
  46         boolean needs_update=false;
  47         File resultfile;
  48         Resources res=getResources();
  49         Log.e("Navit","Res Name " + resname);
  50         Log.e("Navit","result " + result);
  51         int id=res.getIdentifier(resname,"raw","org.navitproject.navit");
  52         Log.e("Navit","Res ID " + id);
  53         if (id == 0)
  54                 return false;
  55         while ((slash=result.indexOf("/",slash+1)) != -1) {
  56                 if (slash != 0) {
  57                         Log.e("Navit","Checking "+result.substring(0,slash));
  58                         resultfile=new File(result.substring(0,slash));
  59                         if (!resultfile.exists()) {
  60                                 Log.e("Navit","Creating dir");
  61                                 if (!resultfile.mkdir())
  62                                         return false;
  63                                 needs_update=true;
  64                         }
  65                 }
  66         }
  67         resultfile=new File(result);
  68         if (!resultfile.exists())
  69                 needs_update=true;
  70         if (!needs_update) {
  71                 try {
  72                         InputStream resourcestream=res.openRawResource(id);
  73                         FileInputStream resultfilestream=new FileInputStream(resultfile);
  74                         byte[] resourcebuf = new byte[1024];
  75                         byte[] resultbuf = new byte[1024];
  76                         int i = 0;
  77                         while ((i = resourcestream.read(resourcebuf)) != -1) {
  78                                 if (resultfilestream.read(resultbuf) != i) {
  79                                         Log.e("Navit","Result is too short");
  80                                         needs_update=true;
  81                                         break;
  82                                 }
  83                                 for (int j = 0 ; j < i ; j++) {
  84                                         if (resourcebuf[j] != resultbuf[j]) {
  85                                                 Log.e("Navit","Result is different");
  86                                                 needs_update=true;
  87                                                 break;
  88                                         }
  89                                 }
  90                                 if (needs_update)
  91                                         break;
  92                         }
  93                         if (!needs_update && resultfilestream.read(resultbuf) != -1) {
  94                                 Log.e("Navit","Result is too long");
  95                                 needs_update=true;
  96                         }
  97                 }
  98                 catch (Exception e) {
  99                         Log.e("Navit","Exception "+e.getMessage());
 100                         return false;
 101                 }
 102         }
 103         if (needs_update) {
 104                 Log.e("Navit","Extracting resource");
 105
 106                 try {
 107                         InputStream resourcestream=res.openRawResource(id);
 108                         FileOutputStream resultfilestream=new FileOutputStream(resultfile);
 109                         byte[] buf = new byte[1024];
 110                         int i = 0;
 111                         while ((i = resourcestream.read(buf)) != -1) {
 112                                 resultfilestream.write(buf, 0, i);
 113                         }
 114                 }
 115                 catch (Exception e) {
 116                         Log.e("Navit","Exception "+e.getMessage());
 117                         return false;
 118                 }
 119         }
 120         return true;
 121     }
 122     /** Called when the activity is first created. */
 123     @Override
 124     public void onCreate(Bundle savedInstanceState)
 125     {
 126         super.onCreate(savedInstanceState);
 127         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 128         wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK|PowerManager.ON_AFTER_RELEASE, "NavitDoNotDimScreen");
 129         Locale locale=java.util.Locale.getDefault();
 130         String lang=locale.getLanguage();
 131         String langu=lang;
 132         String langc=lang;
 133         int pos=langu.indexOf('_');
 134         if (pos != -1) {
 135                 langc=langu.substring(0, pos);
 136                 langu=langc + langu.substring(pos).toUpperCase(locale);
 137         } else {
 138                 String country=locale.getCountry();
 139                 Log.e("Navit","Country "+country);
 140                 langu=langc + "_" + country.toUpperCase(locale);
 141         }
 142         Log.e("Navit","Language " + lang);
 143
 144         if (!extractRes(langc,"/data/data/org.navitproject.navit/locale/"+langc+"/LC_MESSAGES/navit.mo")) {
 145                 Log.e("Navit","Failed to extract language resource "+langc);
 146         }
 147         if (!extractRes("navit","/data/data/org.navitproject.navit/share/navit.xml")) {
 148                 Log.e("Navit","Failed to extract navit.xml");
 149         }
 150         // Debug.startMethodTracing("calc");
 151         NavitMain(this, langu);
 152         NavitActivity(3);
 153     }
 154     @Override public void onStart()
 155     {
 156         super.onStart();
 157         Log.e("Navit","OnStart");
 158         NavitActivity(2);
 159     }
 160     @Override public void onRestart()
 161     {
 162         super.onRestart();
 163         Log.e("Navit","OnRestart");
 164         NavitActivity(0);
 165     }
 166     @Override public void onResume()
 167     {
 168         super.onResume();
 169         Log.e("Navit","OnResume");
 170         NavitActivity(1);
 171     }
 172     @Override public void onPause()
 173     {
 174         super.onPause();
 175         Log.e("Navit","OnPause");
 176         NavitActivity(-1);
 177     }
 178     @Override public void onStop()
 179     {
 180         super.onStop();
 181         Log.e("Navit","OnStop");
 182         NavitActivity(-2);
 183     }
 184     @Override public void onDestroy()
 185     {
 186         super.onDestroy();
 187         Log.e("Navit","OnDestroy");
 188         NavitActivity(-3);
 189     }
 190
 191     public void disableSuspend()
 192     {
 193         wl.acquire();
 194         wl.release();
 195     }
 196
 197     public void exit()
 198     {
 199         finish();
 200     }
 201
 202     public boolean handleMessage(Message m) {
 203         Log.e("Navit","Handler received message");
 204         return true;
 205     }
 206
 207     /* A native method that is implemented by the
 208      * 'hello-jni' native library, which is packaged
 209      * with this application.
 210      */
 211     public native void NavitMain(Navit x, String lang);
 212     public native void NavitActivity(int activity);
 213
 214     /* this is used to load the 'hello-jni' library on application
 215      * startup. The library has already been unpacked into
 216      * /data/data/com.example.Navit/lib/libhello-jni.so at
 217      * installation time by the package manager.
 218      */
 219     static {
 220         System.loadLibrary("navit");
 221     }
 222 }
 223