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      1 /*
      2  * Copyright (c) 2008-2009, Motorola, Inc.
      3  *
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions are met:
      8  *
      9  * - Redistributions of source code must retain the above copyright notice,
     10  * this list of conditions and the following disclaimer.
     11  *
     12  * - Redistributions in binary form must reproduce the above copyright notice,
     13  * this list of conditions and the following disclaimer in the documentation
     14  * and/or other materials provided with the distribution.
     15  *
     16  * - Neither the name of the Motorola, Inc. nor the names of its contributors
     17  * may be used to endorse or promote products derived from this software
     18  * without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
     24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 package com.android.bluetooth.opp;
     34 
     35 import com.android.bluetooth.R;
     36 
     37 import java.io.File;
     38 import java.io.FileNotFoundException;
     39 import java.io.FileOutputStream;
     40 import java.io.IOException;
     41 import java.util.ArrayList;
     42 
     43 import android.app.Activity;
     44 import android.bluetooth.BluetoothDevice;
     45 import android.bluetooth.BluetoothDevicePicker;
     46 import android.content.Intent;
     47 import android.content.ContentResolver;
     48 import android.content.Context;
     49 import android.net.Uri;
     50 import android.os.Bundle;
     51 import android.util.Log;
     52 import android.provider.Settings;
     53 
     54 /**
     55  * This class is designed to act as the entry point of handling the share intent
     56  * via BT from other APPs. and also make "Bluetooth" available in sharing method
     57  * selection dialog.
     58  */
     59 public class BluetoothOppLauncherActivity extends Activity {
     60     private static final String TAG = "BluetoothLauncherActivity";
     61     private static final boolean D = Constants.DEBUG;
     62     private static final boolean V = Constants.VERBOSE;
     63 
     64     @Override
     65     public void onCreate(Bundle savedInstanceState) {
     66         super.onCreate(savedInstanceState);
     67 
     68         Intent intent = getIntent();
     69         String action = intent.getAction();
     70 
     71         if (action.equals(Intent.ACTION_SEND) || action.equals(Intent.ACTION_SEND_MULTIPLE)) {
     72             //Check if Bluetooth is available in the beginning instead of at the end
     73             if (!isBluetoothAllowed()) {
     74                 Intent in = new Intent(this, BluetoothOppBtErrorActivity.class);
     75                 in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     76                 in.putExtra("title", this.getString(R.string.airplane_error_title));
     77                 in.putExtra("content", this.getString(R.string.airplane_error_msg));
     78                 startActivity(in);
     79                 finish();
     80                 return;
     81             }
     82 
     83             /*
     84              * Other application is trying to share a file via Bluetooth,
     85              * probably Pictures, videos, or vCards. The Intent should contain
     86              * an EXTRA_STREAM with the data to attach.
     87              */
     88             if (action.equals(Intent.ACTION_SEND)) {
     89                 // TODO: handle type == null case
     90                 final String type = intent.getType();
     91                 final Uri stream = (Uri)intent.getParcelableExtra(Intent.EXTRA_STREAM);
     92                 CharSequence extra_text = intent.getCharSequenceExtra(Intent.EXTRA_TEXT);
     93                 // If we get ACTION_SEND intent with EXTRA_STREAM, we'll use the
     94                 // uri data;
     95                 // If we get ACTION_SEND intent without EXTRA_STREAM, but with
     96                 // EXTRA_TEXT, we will try send this TEXT out; Currently in
     97                 // Browser, share one link goes to this case;
     98                 if (stream != null && type != null) {
     99                     if (V) Log.v(TAG, "Get ACTION_SEND intent: Uri = " + stream + "; mimetype = "
    100                                 + type);
    101                     // Save type/stream, will be used when adding transfer
    102                     // session to DB.
    103                     Thread t = new Thread(new Runnable() {
    104                         public void run() {
    105                             BluetoothOppManager.getInstance(BluetoothOppLauncherActivity.this)
    106                                 .saveSendingFileInfo(type,stream.toString(), false);
    107                             //Done getting file info..Launch device picker and finish this activity
    108                             launchDevicePicker();
    109                             finish();
    110                         }
    111                     });
    112                     t.start();
    113                     return;
    114                 } else if (extra_text != null && type != null) {
    115                     if (V) Log.v(TAG, "Get ACTION_SEND intent with Extra_text = "
    116                                 + extra_text.toString() + "; mimetype = " + type);
    117                     final Uri fileUri = creatFileForSharedContent(this, extra_text);
    118                     if (fileUri != null) {
    119                         Thread t = new Thread(new Runnable() {
    120                             public void run() {
    121                                 BluetoothOppManager.getInstance(BluetoothOppLauncherActivity.this)
    122                                     .saveSendingFileInfo(type,fileUri.toString(), false);
    123                                 //Done getting file info..Launch device picker
    124                                 //and finish this activity
    125                                 launchDevicePicker();
    126                                 finish();
    127                             }
    128                         });
    129                         t.start();
    130                         return;
    131                     } else {
    132                         Log.w(TAG,"Error trying to do set text...File not created!");
    133                         finish();
    134                         return;
    135                     }
    136                 } else {
    137                     Log.e(TAG, "type is null; or sending file URI is null");
    138                     finish();
    139                     return;
    140                 }
    141             } else if (action.equals(Intent.ACTION_SEND_MULTIPLE)) {
    142                 final String mimeType = intent.getType();
    143                 final ArrayList<Uri> uris = intent.getParcelableArrayListExtra(Intent.EXTRA_STREAM);
    144                 if (mimeType != null && uris != null) {
    145                     if (V) Log.v(TAG, "Get ACTION_SHARE_MULTIPLE intent: uris " + uris + "\n Type= "
    146                                 + mimeType);
    147                     Thread t = new Thread(new Runnable() {
    148                         public void run() {
    149                             BluetoothOppManager.getInstance(BluetoothOppLauncherActivity.this)
    150                                 .saveSendingFileInfo(mimeType,uris, false);
    151                             //Done getting file info..Launch device picker
    152                             //and finish this activity
    153                             launchDevicePicker();
    154                             finish();
    155                         }
    156                     });
    157                     t.start();
    158                     return;
    159                 } else {
    160                     Log.e(TAG, "type is null; or sending files URIs are null");
    161                     finish();
    162                     return;
    163                 }
    164             }
    165         } else if (action.equals(Constants.ACTION_OPEN)) {
    166             Uri uri = getIntent().getData();
    167             if (V) Log.v(TAG, "Get ACTION_OPEN intent: Uri = " + uri);
    168 
    169             Intent intent1 = new Intent();
    170             intent1.setAction(action);
    171             intent1.setClassName(Constants.THIS_PACKAGE_NAME, BluetoothOppReceiver.class.getName());
    172             intent1.setDataAndNormalize(uri);
    173             this.sendBroadcast(intent1);
    174             finish();
    175         } else {
    176             Log.w(TAG, "Unsupported action: " + action);
    177             finish();
    178         }
    179     }
    180 
    181     /**
    182      * Turns on Bluetooth if not already on, or launches device picker if Bluetooth is on
    183      * @return
    184      */
    185     private final void launchDevicePicker() {
    186         // TODO: In the future, we may send intent to DevicePickerActivity
    187         // directly,
    188         // and let DevicePickerActivity to handle Bluetooth Enable.
    189         if (!BluetoothOppManager.getInstance(this).isEnabled()) {
    190             if (V) Log.v(TAG, "Prepare Enable BT!! ");
    191             Intent in = new Intent(this, BluetoothOppBtEnableActivity.class);
    192             in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    193             startActivity(in);
    194         } else {
    195             if (V) Log.v(TAG, "BT already enabled!! ");
    196             Intent in1 = new Intent(BluetoothDevicePicker.ACTION_LAUNCH);
    197             in1.setFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
    198             in1.putExtra(BluetoothDevicePicker.EXTRA_NEED_AUTH, false);
    199             in1.putExtra(BluetoothDevicePicker.EXTRA_FILTER_TYPE,
    200                     BluetoothDevicePicker.FILTER_TYPE_TRANSFER);
    201             in1.putExtra(BluetoothDevicePicker.EXTRA_LAUNCH_PACKAGE,
    202                     Constants.THIS_PACKAGE_NAME);
    203             in1.putExtra(BluetoothDevicePicker.EXTRA_LAUNCH_CLASS,
    204                     BluetoothOppReceiver.class.getName());
    205             if (V) {Log.d(TAG,"Launching " +BluetoothDevicePicker.ACTION_LAUNCH );}
    206             startActivity(in1);
    207         }
    208     }
    209     /* Returns true if Bluetooth is allowed given current airplane mode settings. */
    210     private final boolean isBluetoothAllowed() {
    211         final ContentResolver resolver = this.getContentResolver();
    212 
    213         // Check if airplane mode is on
    214         final boolean isAirplaneModeOn = Settings.System.getInt(resolver,
    215                 Settings.System.AIRPLANE_MODE_ON, 0) == 1;
    216         if (!isAirplaneModeOn) {
    217             return true;
    218         }
    219 
    220         // Check if airplane mode matters
    221         final String airplaneModeRadios = Settings.System.getString(resolver,
    222                 Settings.System.AIRPLANE_MODE_RADIOS);
    223         final boolean isAirplaneSensitive = airplaneModeRadios == null ? true :
    224                 airplaneModeRadios.contains(Settings.System.RADIO_BLUETOOTH);
    225         if (!isAirplaneSensitive) {
    226             return true;
    227         }
    228 
    229         // Check if Bluetooth may be enabled in airplane mode
    230         final String airplaneModeToggleableRadios = Settings.System.getString(resolver,
    231                 Settings.System.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
    232         final boolean isAirplaneToggleable = airplaneModeToggleableRadios == null ? false :
    233                 airplaneModeToggleableRadios.contains(Settings.System.RADIO_BLUETOOTH);
    234         if (isAirplaneToggleable) {
    235             return true;
    236         }
    237 
    238         // If we get here we're not allowed to use Bluetooth right now
    239         return false;
    240     }
    241 
    242     private Uri creatFileForSharedContent(Context context, CharSequence shareContent) {
    243         if (shareContent == null) {
    244             return null;
    245         }
    246 
    247         Uri fileUri = null;
    248         FileOutputStream outStream = null;
    249         try {
    250             String fileName = getString(R.string.bluetooth_share_file_name) + ".html";
    251             context.deleteFile(fileName);
    252 
    253             String uri = shareContent.toString();
    254             String content = "<html><head><meta http-equiv=\"Content-Type\" content=\"text/html;"
    255                 + " charset=UTF-8\"/></head><body>" + "<a href=\"" + uri + "\">" + uri + "</a></p>"
    256                 + "</body></html>";
    257             byte[] byteBuff = content.getBytes();
    258 
    259             outStream = context.openFileOutput(fileName, Context.MODE_PRIVATE);
    260             if (outStream != null) {
    261                 outStream.write(byteBuff, 0, byteBuff.length);
    262                 fileUri = Uri.fromFile(new File(context.getFilesDir(), fileName));
    263                 if (fileUri != null) {
    264                     if (D) Log.d(TAG, "Created one file for shared content: "
    265                             + fileUri.toString());
    266                 }
    267             }
    268         } catch (FileNotFoundException e) {
    269             Log.e(TAG, "FileNotFoundException: " + e.toString());
    270             e.printStackTrace();
    271         } catch (IOException e) {
    272             Log.e(TAG, "IOException: " + e.toString());
    273         } catch (Exception e) {
    274             Log.e(TAG, "Exception: " + e.toString());
    275         } finally {
    276             try {
    277                 if (outStream != null) {
    278                     outStream.close();
    279                 }
    280             } catch (IOException e) {
    281                 e.printStackTrace();
    282             }
    283         }
    284         return fileUri;
    285     }
    286 }
    287