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   1 /*
   2  * Copyright © 2012 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.AltosDroid;
  19
  20 import android.app.Activity;
  21 import android.bluetooth.BluetoothAdapter;
  22 import android.bluetooth.BluetoothDevice;
  23 import android.content.Intent;
  24 import android.content.Context;
  25 import android.content.ComponentName;
  26 import android.content.ServiceConnection;
  27 import android.os.IBinder;
  28 import android.os.Bundle;
  29 import android.os.Handler;
  30 import android.os.Message;
  31 import android.os.Messenger;
  32 import android.os.RemoteException;
  33 import android.text.method.ScrollingMovementMethod;
  34 import android.util.Log;
  35 //import android.view.KeyEvent;
  36 import android.view.Menu;
  37 import android.view.MenuInflater;
  38 import android.view.MenuItem;
  39 //import android.view.View;
  40 import android.view.Window;
  41 //import android.view.View.OnClickListener;
  42 //import android.view.inputmethod.EditorInfo;
  43 //import android.widget.Button;
  44 //import android.widget.EditText;
  45 import android.widget.TextView;
  46 import android.widget.Toast;
  47 import org.altusmetrum.AltosDroid.R;
  48
  49 /**
  50  * This is the main Activity that displays the current chat session.
  51  */
  52 public class AltosDroid extends Activity {
  53         // Debugging
  54         private static final String TAG = "AltosDroid";
  55         private static final boolean D = true;
  56
  57         // Message types sent from the TelemetryService Handler
  58         public static final int MSG_STATE_CHANGE    = 1;
  59         public static final int MSG_DEVNAME         = 2;
  60         public static final int MSG_INCOMING_TELEM  = 3;
  61         public static final int MSG_TOAST           = 4;
  62
  63         // Key names received from the TelemetryService Handler
  64         public static final String KEY_DEVNAME = "key_devname";
  65         public static final String KEY_TOAST   = "key_toast";
  66
  67         // Intent request codes
  68         private static final int REQUEST_CONNECT_DEVICE = 1;
  69         private static final int REQUEST_ENABLE_BT      = 2;
  70
  71         // Layout Views
  72         private TextView mTitle;
  73         private TextView mSerialView;
  74         //private EditText mOutEditText;
  75         //private Button mSendButton;
  76
  77         private boolean mIsBound;
  78         Messenger mService = null;
  79         final Messenger mMessenger = new Messenger(new IncomingHandler());
  80
  81         // Name of the connected device
  82         private String mConnectedDeviceName = null;
  83         // Local Bluetooth adapter
  84         private BluetoothAdapter mBluetoothAdapter = null;
  85
  86
  87         // The Handler that gets information back from the Telemetry Service
  88         class IncomingHandler extends Handler {
  89                 @Override
  90                 public void handleMessage(Message msg) {
  91                         switch (msg.what) {
  92                         case MSG_STATE_CHANGE:
  93                                 if(D) Log.i(TAG, "MSG_STATE_CHANGE: " + msg.arg1);
  94                                 switch (msg.arg1) {
  95                                 case TelemetryService.STATE_CONNECTED:
  96                                         mTitle.setText(R.string.title_connected_to);
  97                                         mTitle.append(mConnectedDeviceName);
  98                                         mSerialView.setText("");
  99                                         break;
 100                                 case TelemetryService.STATE_CONNECTING:
 101                                         mTitle.setText(R.string.title_connecting);
 102                                         break;
 103                                 case TelemetryService.STATE_READY:
 104                                 case TelemetryService.STATE_NONE:
 105                                         mTitle.setText(R.string.title_not_connected);
 106                                         break;
 107                                 }
 108                                 break;
 109                         case MSG_INCOMING_TELEM:
 110                                 byte[] buf = (byte[]) msg.obj;
 111                                 // construct a string from the buffer
 112                                 String telem = new String(buf);
 113                                 mSerialView.append(telem);
 114                                 break;
 115                         case MSG_DEVNAME:
 116                                 // save the connected device's name
 117                                 mConnectedDeviceName = msg.getData().getString(KEY_DEVNAME);
 118                                 Toast.makeText(getApplicationContext(), "Connected to "
 119                                                         + mConnectedDeviceName, Toast.LENGTH_SHORT).show();
 120                                 break;
 121                         case MSG_TOAST:
 122                                 Toast.makeText(
 123                                                 getApplicationContext(),
 124                                                 msg.getData().getString(KEY_TOAST),
 125                                                 Toast.LENGTH_SHORT).show();
 126                                 break;
 127                         }
 128                 }
 129         };
 130
 131
 132         private ServiceConnection mConnection = new ServiceConnection() {
 133                 public void onServiceConnected(ComponentName className, IBinder service) {
 134                         mService = new Messenger(service);
 135                         try {
 136                                 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
 137                                 msg.replyTo = mMessenger;
 138                                 mService.send(msg);
 139                         } catch (RemoteException e) {
 140                                 // In this case the service has crashed before we could even do anything with it
 141                         }
 142                 }
 143
 144                 public void onServiceDisconnected(ComponentName className) {
 145                         // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
 146                         mService = null;
 147                 }
 148         };
 149
 150
 151         @Override
 152         public void onCreate(Bundle savedInstanceState) {
 153                 super.onCreate(savedInstanceState);
 154                 if(D) Log.e(TAG, "+++ ON CREATE +++");
 155
 156                 // Set up the window layout
 157                 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
 158                 setContentView(R.layout.main);
 159                 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
 160
 161                 // Set up the custom title
 162                 mTitle = (TextView) findViewById(R.id.title_left_text);
 163                 mTitle.setText(R.string.app_name);
 164                 mTitle = (TextView) findViewById(R.id.title_right_text);
 165
 166                 mSerialView = (TextView) findViewById(R.id.in);
 167                 mSerialView.setMovementMethod(new ScrollingMovementMethod());
 168                 mSerialView.setClickable(false);
 169                 mSerialView.setLongClickable(false);
 170
 171                 // Get local Bluetooth adapter
 172                 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 173
 174                 // If the adapter is null, then Bluetooth is not supported
 175                 if (mBluetoothAdapter == null) {
 176                         Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
 177                         finish();
 178                         return;
 179                 }
 180
 181                 // Start Telemetry Service
 182                 startService(new Intent(AltosDroid.this, TelemetryService.class));
 183
 184                 doBindService();
 185         }
 186
 187         @Override
 188         public void onStart() {
 189                 super.onStart();
 190                 if(D) Log.e(TAG, "++ ON START ++");
 191
 192                 if (!mBluetoothAdapter.isEnabled()) {
 193                         Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
 194                         startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
 195                 } else {
 196                         //if (mChatService == null) setupChat();
 197                 }
 198         }
 199
 200         @Override
 201         public synchronized void onResume() {
 202                 super.onResume();
 203                 if(D) Log.e(TAG, "+ ON RESUME +");
 204
 205                 // Performing this check in onResume() covers the case in which BT was
 206                 // not enabled during onStart(), so we were paused to enable it...
 207                 // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
 208                 //if (mChatService != null) {
 209                         // Only if the state is STATE_NONE, do we know that we haven't started already
 210                         //if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
 211                         // Start the Bluetooth chat services
 212                         //mChatService.start();
 213                         //}
 214                 //}
 215         }
 216
 217         @Override
 218         public synchronized void onPause() {
 219                 super.onPause();
 220                 if(D) Log.e(TAG, "- ON PAUSE -");
 221         }
 222
 223         @Override
 224         public void onStop() {
 225                 super.onStop();
 226                 if(D) Log.e(TAG, "-- ON STOP --");
 227         }
 228
 229         @Override
 230         public void onDestroy() {
 231                 super.onDestroy();
 232
 233                 doUnbindService();
 234
 235                 if(D) Log.e(TAG, "--- ON DESTROY ---");
 236         }
 237
 238
 239
 240 /*
 241         private void setupChat() {
 242                 Log.d(TAG, "setupChat()");
 243
 244                 // Initialize the compose field with a listener for the return key
 245                 mOutEditText = (EditText) findViewById(R.id.edit_text_out);
 246                 mOutEditText.setOnEditorActionListener(mWriteListener);
 247
 248                 // Initialize the send button with a listener that for click events
 249                 mSendButton = (Button) findViewById(R.id.button_send);
 250                 mSendButton.setOnClickListener(new OnClickListener() {
 251                         public void onClick(View v) {
 252                                 // Send a message using content of the edit text widget
 253                                 TextView view = (TextView) findViewById(R.id.edit_text_out);
 254                                 String message = view.getText().toString();
 255                                 sendMessage(message);
 256                         }
 257                 });
 258
 259                 // Initialize the BluetoothChatService to perform bluetooth connections
 260                 mChatService = new BluetoothChatService(this, mHandler);
 261
 262                 // Initialize the buffer for outgoing messages
 263                 mOutStringBuffer = new StringBuffer("");
 264         }
 265 */
 266
 267         /**
 268          * Sends a message.
 269          * @param message  A string of text to send.
 270          */
 271         /*
 272         private void sendMessage(String message) {
 273                 // Check that we're actually connected before trying anything
 274                 if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
 275                         Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
 276                         return;
 277                 }
 278
 279                 // Check that there's actually something to send
 280                 if (message.length() > 0) {
 281                         // Get the message bytes and tell the BluetoothChatService to write
 282                         byte[] send = message.getBytes();
 283                         mChatService.write(send);
 284
 285                         // Reset out string buffer to zero and clear the edit text field
 286                         mOutStringBuffer.setLength(0);
 287                         mOutEditText.setText(mOutStringBuffer);
 288                 }
 289         }
 290
 291
 292         // The action listener for the EditText widget, to listen for the return key
 293         private TextView.OnEditorActionListener mWriteListener =
 294                 new TextView.OnEditorActionListener() {
 295                 public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
 296                         // If the action is a key-up event on the return key, send the message
 297                         if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
 298                                 String message = view.getText().toString();
 299                                 sendMessage(message);
 300                         }
 301                         if(D) Log.i(TAG, "END onEditorAction");
 302                         return true;
 303                 }
 304         };
 305         */
 306
 307         public void onActivityResult(int requestCode, int resultCode, Intent data) {
 308                 if(D) Log.d(TAG, "onActivityResult " + resultCode);
 309                 switch (requestCode) {
 310                 case REQUEST_CONNECT_DEVICE:
 311                         // When DeviceListActivity returns with a device to connect to
 312                         if (resultCode == Activity.RESULT_OK) {
 313                                 connectDevice(data);
 314                         }
 315                         break;
 316                 case REQUEST_ENABLE_BT:
 317                         // When the request to enable Bluetooth returns
 318                         if (resultCode == Activity.RESULT_OK) {
 319                                 // Bluetooth is now enabled, so set up a chat session
 320                                 //setupChat();
 321                         } else {
 322                                 // User did not enable Bluetooth or an error occured
 323                                 Log.d(TAG, "BT not enabled");
 324                                 stopService(new Intent(AltosDroid.this, TelemetryService.class));
 325                                 Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show();
 326                                 finish();
 327                         }
 328                 }
 329         }
 330
 331         private void connectDevice(Intent data) {
 332                 // Get the device MAC address
 333                 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
 334                 // Get the BLuetoothDevice object
 335                 BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
 336                 // Attempt to connect to the device
 337                 try {
 338                         //Message msg = Message.obtain(null, TelemetryService.MSG_CONNECT_TELEBT);
 339                         //msg.obj = device;
 340                         //mService.send(msg);
 341                         mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT_TELEBT, device));
 342                 } catch (RemoteException e) {
 343                         e.printStackTrace();
 344                 }
 345         }
 346
 347
 348         @Override
 349         public boolean onCreateOptionsMenu(Menu menu) {
 350                 MenuInflater inflater = getMenuInflater();
 351                 inflater.inflate(R.menu.option_menu, menu);
 352                 return true;
 353         }
 354
 355         @Override
 356         public boolean onOptionsItemSelected(MenuItem item) {
 357                 Intent serverIntent = null;
 358                 switch (item.getItemId()) {
 359                 case R.id.connect_scan:
 360                         // Launch the DeviceListActivity to see devices and do scan
 361                         serverIntent = new Intent(this, DeviceListActivity.class);
 362                         startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
 363                         return true;
 364                 }
 365                 return false;
 366         }
 367
 368
 369         void doBindService() {
 370                 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
 371                 mIsBound = true;
 372         }
 373
 374         void doUnbindService() {
 375                 if (mIsBound) {
 376                         // If we have received the service, and hence registered with it, then now is the time to unregister.
 377                         if (mService != null) {
 378                                 try {
 379                                         Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
 380                                         msg.replyTo = mMessenger;
 381                                         mService.send(msg);
 382                                 } catch (RemoteException e) {
 383                                         // There is nothing special we need to do if the service has crashed.
 384                                 }
 385                         }
 386                         // Detach our existing connection.
 387                         unbindService(mConnection);
 388                         mIsBound = false;
 389                 }
 390         }
 391
 392 }