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      1 package com.svox.pico.voice.eng.usa;
      2 
      3 import java.io.File;
      4 import java.io.FileOutputStream;
      5 import java.io.IOException;
      6 import java.io.InputStream;
      7 import java.util.zip.ZipEntry;
      8 import java.util.zip.ZipInputStream;
      9 
     10 import android.app.Activity;
     11 import android.content.Intent;
     12 import android.content.res.AssetFileDescriptor;
     13 import android.content.res.Resources;
     14 import android.os.Bundle;
     15 import android.speech.tts.TextToSpeech;
     16 import android.util.Log;
     17 import android.view.View;
     18 import android.view.View.OnClickListener;
     19 import android.widget.Button;
     20 
     21 public class InstallerActivity extends Activity {
     22     private static final int DATA_ROOT_DIRECTORY_REQUEST_CODE = 42;
     23     private String rootDirectory = "";
     24     private InstallerActivity self;
     25     private static boolean sInstallationSuccess = false;
     26     private static boolean sIsInstalling = false;
     27     private final static Object sInstallerStateLock = new Object();
     28 
     29     /** Called when the activity is first created. */
     30     @Override
     31     public void onCreate(Bundle savedInstanceState) {
     32         super.onCreate(savedInstanceState);
     33         self = this;
     34         Intent getRootDirectoryIntent = new Intent();
     35         getRootDirectoryIntent.setClassName("com.svox.pico", "com.svox.pico.CheckVoiceData");
     36         startActivityForResult(getRootDirectoryIntent, DATA_ROOT_DIRECTORY_REQUEST_CODE);
     37     }
     38 
     39     @Override
     40     public void onActivityResult(int requestCode, int resultCode, Intent data){
     41         super.onActivityResult(requestCode, resultCode, data);
     42         if (requestCode == DATA_ROOT_DIRECTORY_REQUEST_CODE) {
     43             rootDirectory = data.getStringExtra(TextToSpeech.Engine.EXTRA_VOICE_DATA_ROOT_DIRECTORY);
     44             // only run the installer if there isn't another one running
     45             synchronized (sInstallerStateLock) {
     46                 if (!sIsInstalling && !sInstallationSuccess) {
     47                     sIsInstalling = true;
     48                     runInstaller();
     49                 }
     50             }
     51         }
     52     }
     53 
     54     private void runInstaller(){
     55         try {
     56             Resources res = getResources();
     57             AssetFileDescriptor langPackFd = res
     58                     .openRawResourceFd(R.raw.svoxlangpack);
     59             InputStream stream = langPackFd.createInputStream();
     60 
     61             (new Thread(new unzipper(stream))).start();
     62         } catch (IOException e) {
     63             Log.e("PicoLangInstaller", "Unable to open langpack resource.");
     64             e.printStackTrace();
     65         }
     66         setContentView(R.layout.installing);
     67     }
     68 
     69 
     70     private boolean unzipLangPack(InputStream stream) {
     71         FileOutputStream out;
     72         byte buf[] = new byte[16384];
     73         try {
     74             ZipInputStream zis = new ZipInputStream(stream);
     75             ZipEntry entry = zis.getNextEntry();
     76             while (entry != null) {
     77                 if (entry.isDirectory()) {
     78                     File newDir = new File(rootDirectory + entry.getName());
     79                     newDir.mkdir();
     80                 } else {
     81                     String name = entry.getName();
     82                     File outputFile = new File(rootDirectory + name);
     83                     String outputPath = outputFile.getCanonicalPath();
     84                     name = outputPath
     85                             .substring(outputPath.lastIndexOf("/") + 1);
     86                     outputPath = outputPath.substring(0, outputPath
     87                             .lastIndexOf("/"));
     88                     File outputDir = new File(outputPath);
     89                     outputDir.mkdirs();
     90                     outputFile = new File(outputPath, name);
     91                     outputFile.createNewFile();
     92                     out = new FileOutputStream(outputFile);
     93 
     94                     int numread = 0;
     95                     do {
     96                         numread = zis.read(buf);
     97                         if (numread <= 0) {
     98                             break;
     99                         } else {
    100                             out.write(buf, 0, numread);
    101                         }
    102                     } while (true);
    103                     out.close();
    104                 }
    105                 entry = zis.getNextEntry();
    106             }
    107             return true;
    108         } catch (IOException e) {
    109             e.printStackTrace();
    110             return false;
    111         }
    112     }
    113 
    114     private class unzipper implements Runnable {
    115         public InputStream stream;
    116 
    117         public unzipper(InputStream is) {
    118             stream = is;
    119         }
    120 
    121         public void run() {
    122             boolean result = unzipLangPack(stream);
    123             synchronized (sInstallerStateLock) {
    124                 sInstallationSuccess = result;
    125                 sIsInstalling = false;
    126             }
    127             if (sInstallationSuccess) {
    128                 // installation completed: signal success (extra set to SUCCESS)
    129                 Intent installCompleteIntent =
    130                         new Intent(TextToSpeech.Engine.ACTION_TTS_DATA_INSTALLED);
    131                 installCompleteIntent.putExtra(TextToSpeech.Engine.EXTRA_TTS_DATA_INSTALLED,
    132                         TextToSpeech.SUCCESS);
    133                 self.sendBroadcast(installCompleteIntent);
    134                 finish();
    135             } else {
    136                 // installation failed
    137                 // signal install error if the activity is finishing (can't ask the user to retry)
    138                 if (self.isFinishing()) {
    139                     Intent installCompleteIntent =
    140                         new Intent(TextToSpeech.Engine.ACTION_TTS_DATA_INSTALLED);
    141                     installCompleteIntent.putExtra(TextToSpeech.Engine.EXTRA_TTS_DATA_INSTALLED,
    142                             TextToSpeech.ERROR);
    143                     self.sendBroadcast(installCompleteIntent);
    144                 } else {
    145                     // the activity is still running, ask the user to retry.
    146                     runOnUiThread(new retryDisplayer());
    147                 }
    148             }
    149         }
    150     }
    151 
    152 
    153     public class retryDisplayer implements Runnable {
    154         public void run() {
    155             setContentView(R.layout.retry);
    156             Button retryButton = (Button) findViewById(R.id.retryButton);
    157             retryButton.setOnClickListener(new OnClickListener() {
    158                 public void onClick(View arg0) {
    159                     // only run the installer if there isn't another one running
    160                     // (we only get here if the installer couldn't complete successfully before)
    161                     synchronized (sInstallerStateLock) {
    162                         if (!sIsInstalling) {
    163                             sIsInstalling = true;
    164                             runInstaller();
    165                         }
    166                     }
    167                 }
    168             });
    169         }
    170     }
    171 
    172 }
    173