ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.app.AlertDialog;
   4import android.app.Fragment;
   5import android.app.PendingIntent;
   6import android.content.Context;
   7import android.content.DialogInterface;
   8import android.content.Intent;
   9import android.content.IntentSender;
  10import android.content.IntentSender.SendIntentException;
  11import android.os.Bundle;
  12import android.text.InputType;
  13import android.view.ContextMenu;
  14import android.view.ContextMenu.ContextMenuInfo;
  15import android.view.Gravity;
  16import android.view.KeyEvent;
  17import android.view.LayoutInflater;
  18import android.view.MenuItem;
  19import android.view.View;
  20import android.view.View.OnClickListener;
  21import android.view.ViewGroup;
  22import android.view.inputmethod.EditorInfo;
  23import android.view.inputmethod.InputMethodManager;
  24import android.widget.AbsListView;
  25import android.widget.AbsListView.OnScrollListener;
  26import android.widget.AdapterView;
  27import android.widget.AdapterView.AdapterContextMenuInfo;
  28import android.widget.ImageButton;
  29import android.widget.ListView;
  30import android.widget.RelativeLayout;
  31import android.widget.TextView;
  32import android.widget.TextView.OnEditorActionListener;
  33import android.widget.Toast;
  34
  35import net.java.otr4j.session.SessionStatus;
  36
  37import java.net.URLConnection;
  38import java.util.ArrayList;
  39import java.util.List;
  40import java.util.NoSuchElementException;
  41import java.util.concurrent.ConcurrentLinkedQueue;
  42
  43import eu.siacs.conversations.Config;
  44import eu.siacs.conversations.R;
  45import eu.siacs.conversations.crypto.PgpEngine;
  46import eu.siacs.conversations.entities.Account;
  47import eu.siacs.conversations.entities.Contact;
  48import eu.siacs.conversations.entities.Conversation;
  49import eu.siacs.conversations.entities.Downloadable;
  50import eu.siacs.conversations.entities.DownloadableFile;
  51import eu.siacs.conversations.entities.DownloadablePlaceholder;
  52import eu.siacs.conversations.entities.Message;
  53import eu.siacs.conversations.entities.MucOptions;
  54import eu.siacs.conversations.entities.Presences;
  55import eu.siacs.conversations.services.XmppConnectionService;
  56import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
  57import eu.siacs.conversations.ui.XmppActivity.OnValueEdited;
  58import eu.siacs.conversations.ui.adapter.MessageAdapter;
  59import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked;
  60import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
  61import eu.siacs.conversations.utils.GeoHelper;
  62import eu.siacs.conversations.xmpp.chatstate.ChatState;
  63import eu.siacs.conversations.xmpp.jid.Jid;
  64
  65public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  66
  67	protected Conversation conversation;
  68	private OnClickListener leaveMuc = new OnClickListener() {
  69
  70		@Override
  71		public void onClick(View v) {
  72			activity.endConversation(conversation);
  73		}
  74	};
  75	private OnClickListener joinMuc = new OnClickListener() {
  76
  77		@Override
  78		public void onClick(View v) {
  79			activity.xmppConnectionService.joinMuc(conversation);
  80		}
  81	};
  82	private OnClickListener enterPassword = new OnClickListener() {
  83
  84		@Override
  85		public void onClick(View v) {
  86			MucOptions muc = conversation.getMucOptions();
  87			String password = muc.getPassword();
  88			if (password == null) {
  89				password = "";
  90			}
  91			activity.quickPasswordEdit(password, new OnValueEdited() {
  92
  93				@Override
  94				public void onValueEdited(String value) {
  95					activity.xmppConnectionService.providePasswordForMuc(
  96							conversation, value);
  97				}
  98			});
  99		}
 100	};
 101	protected ListView messagesView;
 102	final protected List<Message> messageList = new ArrayList<>();
 103	protected MessageAdapter messageListAdapter;
 104	private EditMessage mEditMessage;
 105	private ImageButton mSendButton;
 106	private RelativeLayout snackbar;
 107	private TextView snackbarMessage;
 108	private TextView snackbarAction;
 109	private boolean messagesLoaded = true;
 110	private Toast messageLoaderToast;
 111
 112	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 113
 114		@Override
 115		public void onScrollStateChanged(AbsListView view, int scrollState) {
 116			// TODO Auto-generated method stub
 117
 118		}
 119
 120		@Override
 121		public void onScroll(AbsListView view, int firstVisibleItem,
 122				int visibleItemCount, int totalItemCount) {
 123			synchronized (ConversationFragment.this.messageList) {
 124				if (firstVisibleItem < 5 && messagesLoaded && messageList.size() > 0) {
 125					long timestamp = ConversationFragment.this.messageList.get(0).getTimeSent();
 126					messagesLoaded = false;
 127					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 128						@Override
 129						public void onMoreMessagesLoaded(final int count, Conversation conversation) {
 130							if (ConversationFragment.this.conversation != conversation) {
 131								return;
 132							}
 133							activity.runOnUiThread(new Runnable() {
 134								@Override
 135								public void run() {
 136									final int oldPosition = messagesView.getFirstVisiblePosition();
 137									View v = messagesView.getChildAt(0);
 138									final int pxOffset = (v == null) ? 0 : v.getTop();
 139									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 140									updateStatusMessages();
 141									messageListAdapter.notifyDataSetChanged();
 142									if (count != 0) {
 143										final int newPosition = oldPosition + count;
 144										int offset = 0;
 145										try {
 146											Message tmpMessage = messageList.get(newPosition);
 147
 148											while(tmpMessage.wasMergedIntoPrevious()) {
 149												offset++;
 150												tmpMessage = tmpMessage.prev();
 151											}
 152										} catch (final IndexOutOfBoundsException ignored) {
 153
 154										}
 155										messagesView.setSelectionFromTop(newPosition - offset, pxOffset);
 156										messagesLoaded = true;
 157										if (messageLoaderToast != null) {
 158											messageLoaderToast.cancel();
 159										}
 160									}
 161								}
 162							});
 163						}
 164
 165						@Override
 166						public void informUser(final int resId) {
 167
 168							activity.runOnUiThread(new Runnable() {
 169								@Override
 170								public void run() {
 171									if (messageLoaderToast != null) {
 172										messageLoaderToast.cancel();
 173									}
 174									if (ConversationFragment.this.conversation != conversation) {
 175										return;
 176									}
 177									messageLoaderToast = Toast.makeText(activity,resId,Toast.LENGTH_LONG);
 178									messageLoaderToast.show();
 179								}
 180							});
 181
 182						}
 183					});
 184
 185				}
 186			}
 187		}
 188	};
 189	private IntentSender askForPassphraseIntent = null;
 190	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 191
 192		@Override
 193		public void onClick(View v) {
 194			if (activity.hasPgp() && askForPassphraseIntent != null) {
 195				try {
 196					getActivity().startIntentSenderForResult(
 197							askForPassphraseIntent,
 198							ConversationActivity.REQUEST_DECRYPT_PGP, null, 0,
 199							0, 0);
 200					askForPassphraseIntent = null;
 201				} catch (SendIntentException e) {
 202					//
 203				}
 204			}
 205		}
 206	};
 207	protected OnClickListener clickToVerify = new OnClickListener() {
 208
 209		@Override
 210		public void onClick(View v) {
 211			activity.verifyOtrSessionDialog(conversation,v);
 212		}
 213	};
 214	private ConcurrentLinkedQueue<Message> mEncryptedMessages = new ConcurrentLinkedQueue<>();
 215	private boolean mDecryptJobRunning = false;
 216	private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
 217
 218		@Override
 219		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 220			if (actionId == EditorInfo.IME_ACTION_SEND) {
 221				InputMethodManager imm = (InputMethodManager) v.getContext()
 222					.getSystemService(Context.INPUT_METHOD_SERVICE);
 223				imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 224				sendMessage();
 225				return true;
 226			} else {
 227				return false;
 228			}
 229		}
 230	};
 231	private OnClickListener mSendButtonListener = new OnClickListener() {
 232
 233		@Override
 234		public void onClick(View v) {
 235			sendMessage();
 236		}
 237	};
 238	private OnClickListener clickToMuc = new OnClickListener() {
 239
 240		@Override
 241		public void onClick(View v) {
 242			Intent intent = new Intent(getActivity(),
 243					ConferenceDetailsActivity.class);
 244			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 245			intent.putExtra("uuid", conversation.getUuid());
 246			startActivity(intent);
 247		}
 248	};
 249	private ConversationActivity activity;
 250	private Message selectedMessage;
 251
 252	private void sendMessage() {
 253		if (this.conversation == null) {
 254			return;
 255		}
 256		if (mEditMessage.getText().length() < 1) {
 257			if (this.conversation.getMode() == Conversation.MODE_MULTI) {
 258				conversation.setNextCounterpart(null);
 259				updateChatMsgHint();
 260			}
 261			return;
 262		}
 263		Message message = new Message(conversation, mEditMessage.getText()
 264				.toString(), conversation.getNextEncryption(activity
 265					.forceEncryption()));
 266		if (conversation.getMode() == Conversation.MODE_MULTI) {
 267			if (conversation.getNextCounterpart() != null) {
 268				message.setCounterpart(conversation.getNextCounterpart());
 269				message.setType(Message.TYPE_PRIVATE);
 270			}
 271		}
 272		if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_OTR) {
 273			sendOtrMessage(message);
 274		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_PGP) {
 275			sendPgpMessage(message);
 276		} else {
 277			sendPlainTextMessage(message);
 278		}
 279	}
 280
 281	public void updateChatMsgHint() {
 282		if (conversation.getMode() == Conversation.MODE_MULTI
 283				&& conversation.getNextCounterpart() != null) {
 284			this.mEditMessage.setHint(getString(
 285						R.string.send_private_message_to,
 286						conversation.getNextCounterpart().getResourcepart()));
 287		} else {
 288			switch (conversation.getNextEncryption(activity.forceEncryption())) {
 289				case Message.ENCRYPTION_NONE:
 290					mEditMessage
 291						.setHint(getString(R.string.send_plain_text_message));
 292					break;
 293				case Message.ENCRYPTION_OTR:
 294					mEditMessage.setHint(getString(R.string.send_otr_message));
 295					break;
 296				case Message.ENCRYPTION_PGP:
 297					mEditMessage.setHint(getString(R.string.send_pgp_message));
 298					break;
 299				default:
 300					break;
 301			}
 302			getActivity().invalidateOptionsMenu();
 303		}
 304	}
 305
 306	private void setupIme() {
 307		if (((ConversationActivity)getActivity()).usingEnterKey()) {
 308			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 309		} else {
 310			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 311		}
 312	}
 313
 314	@Override
 315	public View onCreateView(final LayoutInflater inflater,
 316			ViewGroup container, Bundle savedInstanceState) {
 317		final View view = inflater.inflate(R.layout.fragment_conversation,container, false);
 318		view.setOnClickListener(null);
 319		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 320		setupIme();
 321		mEditMessage.setOnClickListener(new OnClickListener() {
 322
 323			@Override
 324			public void onClick(View v) {
 325				if (activity != null) {
 326					activity.hideConversationsOverview();
 327				}
 328			}
 329		});
 330		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 331
 332		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 333		mSendButton.setOnClickListener(this.mSendButtonListener);
 334
 335		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 336		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 337		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 338
 339		messagesView = (ListView) view.findViewById(R.id.messages_view);
 340		messagesView.setOnScrollListener(mOnScrollListener);
 341		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 342		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 343		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 344
 345			@Override
 346			public void onContactPictureClicked(Message message) {
 347				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 348					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 349						if (message.getCounterpart() != null) {
 350							if (!message.getCounterpart().isBareJid()) {
 351								highlightInConference(message.getCounterpart().getResourcepart());
 352							} else {
 353								highlightInConference(message.getCounterpart().toString());
 354							}
 355						}
 356					} else {
 357						activity.switchToContactDetails(message.getContact());
 358					}
 359				} else {
 360					Account account = message.getConversation().getAccount();
 361					Intent intent = new Intent(activity, EditAccountActivity.class);
 362					intent.putExtra("jid", account.getJid().toBareJid().toString());
 363					startActivity(intent);
 364				}
 365			}
 366		});
 367		messageListAdapter
 368			.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 369
 370				@Override
 371				public void onContactPictureLongClicked(Message message) {
 372					if (message.getStatus() <= Message.STATUS_RECEIVED) {
 373						if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 374							if (message.getCounterpart() != null) {
 375								privateMessageWith(message.getCounterpart());
 376							}
 377						}
 378					} else {
 379						activity.showQrCode();
 380					}
 381				}
 382			});
 383		messagesView.setAdapter(messageListAdapter);
 384
 385		registerForContextMenu(messagesView);
 386
 387		return view;
 388	}
 389
 390	@Override
 391	public void onCreateContextMenu(ContextMenu menu, View v,
 392			ContextMenuInfo menuInfo) {
 393		synchronized (this.messageList) {
 394			super.onCreateContextMenu(menu, v, menuInfo);
 395			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 396			this.selectedMessage = this.messageList.get(acmi.position);
 397			populateContextMenu(menu);
 398		}
 399	}
 400
 401	private void populateContextMenu(ContextMenu menu) {
 402		final Message m = this.selectedMessage;
 403		if (m.getType() != Message.TYPE_STATUS) {
 404			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 405			menu.setHeaderTitle(R.string.message_options);
 406			MenuItem copyText = menu.findItem(R.id.copy_text);
 407			MenuItem shareWith = menu.findItem(R.id.share_with);
 408			MenuItem sendAgain = menu.findItem(R.id.send_again);
 409			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 410			MenuItem downloadImage = menu.findItem(R.id.download_image);
 411			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 412			if ((m.getType() != Message.TYPE_TEXT && m.getType() != Message.TYPE_PRIVATE)
 413					|| m.getDownloadable() != null || GeoHelper.isGeoUri(m.getBody())) {
 414				copyText.setVisible(false);
 415			}
 416			if ((m.getType() == Message.TYPE_TEXT
 417					|| m.getType() == Message.TYPE_PRIVATE
 418					|| m.getDownloadable() != null)
 419				&& (!GeoHelper.isGeoUri(m.getBody()))) {
 420				shareWith.setVisible(false);
 421			}
 422			if (m.getStatus() != Message.STATUS_SEND_FAILED) {
 423				sendAgain.setVisible(false);
 424			}
 425			if (((m.getType() != Message.TYPE_IMAGE && m.getDownloadable() == null)
 426					|| m.getImageParams().url == null) && !GeoHelper.isGeoUri(m.getBody())) {
 427				copyUrl.setVisible(false);
 428					}
 429			if (m.getType() != Message.TYPE_TEXT
 430					|| m.getDownloadable() != null
 431					|| !m.bodyContainsDownloadable()) {
 432				downloadImage.setVisible(false);
 433					}
 434			if (!((m.getDownloadable() != null && !(m.getDownloadable() instanceof DownloadablePlaceholder))
 435						|| (m.isFileOrImage() && (m.getStatus() == Message.STATUS_WAITING
 436								|| m.getStatus() == Message.STATUS_OFFERED)))) {
 437				cancelTransmission.setVisible(false);
 438								}
 439		}
 440	}
 441
 442	@Override
 443	public boolean onContextItemSelected(MenuItem item) {
 444		switch (item.getItemId()) {
 445			case R.id.share_with:
 446				shareWith(selectedMessage);
 447				return true;
 448			case R.id.copy_text:
 449				copyText(selectedMessage);
 450				return true;
 451			case R.id.send_again:
 452				resendMessage(selectedMessage);
 453				return true;
 454			case R.id.copy_url:
 455				copyUrl(selectedMessage);
 456				return true;
 457			case R.id.download_image:
 458				downloadImage(selectedMessage);
 459				return true;
 460			case R.id.cancel_transmission:
 461				cancelTransmission(selectedMessage);
 462				return true;
 463			default:
 464				return super.onContextItemSelected(item);
 465		}
 466	}
 467
 468	private void shareWith(Message message) {
 469		Intent shareIntent = new Intent();
 470		shareIntent.setAction(Intent.ACTION_SEND);
 471		if (GeoHelper.isGeoUri(message.getBody())) {
 472			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 473			shareIntent.setType("text/plain");
 474		} else {
 475			shareIntent.putExtra(Intent.EXTRA_STREAM,
 476					activity.xmppConnectionService.getFileBackend()
 477							.getJingleFileUri(message));
 478			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 479			String path = message.getRelativeFilePath();
 480			String mime = path == null ? null : URLConnection.guessContentTypeFromName(path);
 481			if (mime == null) {
 482				mime = "image/webp";
 483			}
 484			shareIntent.setType(mime);
 485		}
 486		activity.startActivity(Intent.createChooser(shareIntent,getText(R.string.share_with)));
 487	}
 488
 489	private void copyText(Message message) {
 490		if (activity.copyTextToClipboard(message.getMergedBody(),
 491					R.string.message_text)) {
 492			Toast.makeText(activity, R.string.message_copied_to_clipboard,
 493					Toast.LENGTH_SHORT).show();
 494		}
 495	}
 496
 497	private void resendMessage(Message message) {
 498		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 499			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 500			if (!file.exists()) {
 501				Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
 502				message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 503				return;
 504			}
 505		}
 506		activity.xmppConnectionService.resendFailedMessages(message);
 507	}
 508
 509	private void copyUrl(Message message) {
 510		final String url;
 511		final int resId;
 512		if (GeoHelper.isGeoUri(message.getBody())) {
 513			resId = R.string.location;
 514			url = message.getBody();
 515		} else {
 516			resId = R.string.image_url;
 517			url = message.getImageParams().url.toString();
 518		}
 519		if (activity.copyTextToClipboard(url, resId)) {
 520			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 521					Toast.LENGTH_SHORT).show();
 522					}
 523	}
 524
 525	private void downloadImage(Message message) {
 526		activity.xmppConnectionService.getHttpConnectionManager()
 527			.createNewConnection(message);
 528	}
 529
 530	private void cancelTransmission(Message message) {
 531		Downloadable downloadable = message.getDownloadable();
 532		if (downloadable!=null) {
 533			downloadable.cancel();
 534		} else {
 535			activity.xmppConnectionService.markMessage(message,Message.STATUS_SEND_FAILED);
 536		}
 537	}
 538
 539	protected void privateMessageWith(final Jid counterpart) {
 540		this.mEditMessage.setText("");
 541		this.conversation.setNextCounterpart(counterpart);
 542		updateChatMsgHint();
 543	}
 544
 545	protected void highlightInConference(String nick) {
 546		String oldString = mEditMessage.getText().toString().trim();
 547		if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
 548			mEditMessage.getText().insert(0, nick + ": ");
 549		} else {
 550			if (mEditMessage.getText().charAt(
 551						mEditMessage.getSelectionStart() - 1) != ' ') {
 552				nick = " " + nick;
 553						}
 554			mEditMessage.getText().insert(mEditMessage.getSelectionStart(),
 555					nick + " ");
 556		}
 557	}
 558
 559	@Override
 560	public void onStop() {
 561		mDecryptJobRunning = false;
 562		super.onStop();
 563		if (this.conversation != null) {
 564			final String msg = mEditMessage.getText().toString();
 565			this.conversation.setNextMessage(msg);
 566			updateChatState(this.conversation,msg);
 567		}
 568	}
 569
 570	private void updateChatState(final Conversation conversation, final String msg) {
 571		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 572		Account.State status = conversation.getAccount().getStatus();
 573		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 574			activity.xmppConnectionService.sendChatState(conversation);
 575		}
 576	}
 577
 578	public void reInit(Conversation conversation) {
 579		if (conversation == null) {
 580			return;
 581		}
 582
 583		this.activity = (ConversationActivity) getActivity();
 584
 585		if (this.conversation != null) {
 586			final String msg = mEditMessage.getText().toString();
 587			this.conversation.setNextMessage(msg);
 588			if (this.conversation != conversation) {
 589				updateChatState(this.conversation,msg);
 590			}
 591			this.conversation.trim();
 592		}
 593
 594		this.askForPassphraseIntent = null;
 595		this.conversation = conversation;
 596		this.mDecryptJobRunning = false;
 597		this.mEncryptedMessages.clear();
 598		if (this.conversation.getMode() == Conversation.MODE_MULTI) {
 599			this.conversation.setNextCounterpart(null);
 600		}
 601		this.mEditMessage.setKeyboardListener(null);
 602		this.mEditMessage.setText("");
 603		this.mEditMessage.append(this.conversation.getNextMessage());
 604		this.mEditMessage.setKeyboardListener(this);
 605		this.messagesView.setAdapter(messageListAdapter);
 606		updateMessages();
 607		this.messagesLoaded = true;
 608		int size = this.messageList.size();
 609		if (size > 0) {
 610			messagesView.setSelection(size - 1);
 611		}
 612	}
 613
 614	private OnClickListener mUnblockClickListener = new OnClickListener() {
 615		@Override
 616		public void onClick(final View v) {
 617			v.post(new Runnable() {
 618				@Override
 619				public void run() {
 620					v.setVisibility(View.INVISIBLE);
 621				}
 622			});
 623			if (conversation.isDomainBlocked()) {
 624				BlockContactDialog.show(activity, activity.xmppConnectionService, conversation);
 625			} else {
 626				activity.unblockConversation(conversation);
 627			}
 628		}
 629	};
 630
 631	private OnClickListener mAddBackClickListener = new OnClickListener() {
 632
 633		@Override
 634		public void onClick(View v) {
 635			final Contact contact = conversation == null ? null :conversation.getContact();
 636			if (contact != null) {
 637				activity.xmppConnectionService.createContact(contact);
 638				activity.switchToContactDetails(contact);
 639			}
 640		}
 641	};
 642
 643	private OnClickListener mUnmuteClickListener = new OnClickListener() {
 644
 645		@Override
 646		public void onClick(final View v) {
 647			activity.unmuteConversation(conversation);
 648		}
 649	};
 650
 651	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
 652		@Override
 653		public void onClick(View view) {
 654			Intent intent = new Intent(activity, VerifyOTRActivity.class);
 655			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 656			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 657			intent.putExtra("account", conversation.getAccount().getJid().toBareJid().toString());
 658			intent.putExtra("mode",VerifyOTRActivity.MODE_ANSWER_QUESTION);
 659			startActivity(intent);
 660		}
 661	};
 662
 663	private void updateSnackBar(final Conversation conversation) {
 664		final Account account = conversation.getAccount();
 665		final Contact contact = conversation.getContact();
 666		final int mode = conversation.getMode();
 667		if (conversation.isBlocked()) {
 668			showSnackbar(R.string.contact_blocked, R.string.unblock,this.mUnblockClickListener);
 669		} else if (!contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 670			showSnackbar(R.string.contact_added_you, R.string.add_back,this.mAddBackClickListener);
 671		} else if (mode == Conversation.MODE_MULTI
 672				&&!conversation.getMucOptions().online()
 673				&& account.getStatus() == Account.State.ONLINE) {
 674			switch (conversation.getMucOptions().getError()) {
 675				case MucOptions.ERROR_NICK_IN_USE:
 676					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
 677					break;
 678				case MucOptions.ERROR_UNKNOWN:
 679					showSnackbar(R.string.conference_not_found, R.string.leave, leaveMuc);
 680					break;
 681				case MucOptions.ERROR_PASSWORD_REQUIRED:
 682					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 683					break;
 684				case MucOptions.ERROR_BANNED:
 685					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
 686					break;
 687				case MucOptions.ERROR_MEMBERS_ONLY:
 688					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
 689					break;
 690				case MucOptions.KICKED_FROM_ROOM:
 691					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
 692					break;
 693				default:
 694					break;
 695			}
 696		} else if (askForPassphraseIntent != null ) {
 697			showSnackbar(R.string.openpgp_messages_found,R.string.decrypt, clickToDecryptListener);
 698		} else if (mode == Conversation.MODE_SINGLE
 699				&& conversation.smpRequested()) {
 700			showSnackbar(R.string.smp_requested, R.string.verify,this.mAnswerSmpClickListener);
 701		} else if (mode == Conversation.MODE_SINGLE
 702				&&conversation.hasValidOtrSession()
 703				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
 704				&& (!conversation.isOtrFingerprintVerified())) {
 705			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
 706		} else if (conversation.isMuted()) {
 707			showSnackbar(R.string.notifications_disabled, R.string.enable,this.mUnmuteClickListener);
 708		} else {
 709			hideSnackbar();
 710		}
 711	}
 712
 713	public void updateMessages() {
 714		synchronized (this.messageList) {
 715			if (getView() == null) {
 716				return;
 717			}
 718			final ConversationActivity activity = (ConversationActivity) getActivity();
 719			if (this.conversation != null) {
 720				updateSnackBar(this.conversation);
 721				final Contact contact = this.conversation.getContact();
 722				if (this.conversation.isBlocked()) {
 723
 724				} else if (!contact.showInRoster()
 725						&& contact
 726						.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 727
 728				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
 729					makeFingerprintWarning();
 730				} else if (!conversation.getMucOptions().online()
 731						&& conversation.getAccount().getStatus() == Account.State.ONLINE) {
 732
 733				} else if (this.conversation.isMuted()) {
 734
 735				}
 736				conversation.populateWithMessages(ConversationFragment.this.messageList);
 737				for (final Message message : this.messageList) {
 738					if (message.getEncryption() == Message.ENCRYPTION_PGP
 739							&& (message.getStatus() == Message.STATUS_RECEIVED || message
 740								.getStatus() >= Message.STATUS_SEND)
 741							&& message.getDownloadable() == null) {
 742						if (!mEncryptedMessages.contains(message)) {
 743							mEncryptedMessages.add(message);
 744						}
 745							}
 746				}
 747				decryptNext();
 748				updateStatusMessages();
 749				this.messageListAdapter.notifyDataSetChanged();
 750				updateChatMsgHint();
 751				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
 752					activity.sendReadMarkerIfNecessary(conversation);
 753				}
 754				this.updateSendButton();
 755			}
 756		}
 757	}
 758
 759	private void decryptNext() {
 760		Message next = this.mEncryptedMessages.peek();
 761		PgpEngine engine = activity.xmppConnectionService.getPgpEngine();
 762
 763		if (next != null && engine != null && !mDecryptJobRunning) {
 764			mDecryptJobRunning = true;
 765			engine.decrypt(next, new UiCallback<Message>() {
 766
 767				@Override
 768				public void userInputRequried(PendingIntent pi, Message message) {
 769					mDecryptJobRunning = false;
 770					askForPassphraseIntent = pi.getIntentSender();
 771					updateSnackBar(conversation);
 772				}
 773
 774				@Override
 775				public void success(Message message) {
 776					mDecryptJobRunning = false;
 777					try {
 778						mEncryptedMessages.remove();
 779					} catch (final NoSuchElementException ignored) {
 780
 781					}
 782					activity.xmppConnectionService.updateMessage(message);
 783				}
 784
 785				@Override
 786				public void error(int error, Message message) {
 787					message.setEncryption(Message.ENCRYPTION_DECRYPTION_FAILED);
 788					mDecryptJobRunning = false;
 789					try {
 790						mEncryptedMessages.remove();
 791					} catch (final NoSuchElementException ignored) {
 792
 793					}
 794					activity.xmppConnectionService.updateConversationUi();
 795				}
 796			});
 797		}
 798	}
 799
 800	private void messageSent() {
 801		int size = this.messageList.size();
 802		messagesView.setSelection(size - 1);
 803		mEditMessage.setText("");
 804		updateChatMsgHint();
 805	}
 806
 807	public void updateSendButton() {
 808		Conversation c = this.conversation;
 809		if (activity.useSendButtonToIndicateStatus() && c != null
 810				&& c.getAccount().getStatus() == Account.State.ONLINE) {
 811			if (c.getMode() == Conversation.MODE_SINGLE) {
 812				switch (c.getContact().getMostAvailableStatus()) {
 813					case Presences.CHAT:
 814						this.mSendButton
 815							.setImageResource(R.drawable.ic_action_send_now_online);
 816						break;
 817					case Presences.ONLINE:
 818						this.mSendButton
 819							.setImageResource(R.drawable.ic_action_send_now_online);
 820						break;
 821					case Presences.AWAY:
 822						this.mSendButton
 823							.setImageResource(R.drawable.ic_action_send_now_away);
 824						break;
 825					case Presences.XA:
 826						this.mSendButton
 827							.setImageResource(R.drawable.ic_action_send_now_away);
 828						break;
 829					case Presences.DND:
 830						this.mSendButton
 831							.setImageResource(R.drawable.ic_action_send_now_dnd);
 832						break;
 833					default:
 834						this.mSendButton
 835							.setImageResource(R.drawable.ic_action_send_now_offline);
 836						break;
 837				}
 838			} else if (c.getMode() == Conversation.MODE_MULTI) {
 839				if (c.getMucOptions().online()) {
 840					this.mSendButton
 841						.setImageResource(R.drawable.ic_action_send_now_online);
 842				} else {
 843					this.mSendButton
 844						.setImageResource(R.drawable.ic_action_send_now_offline);
 845				}
 846			} else {
 847				this.mSendButton
 848					.setImageResource(R.drawable.ic_action_send_now_offline);
 849			}
 850		} else {
 851			this.mSendButton
 852				.setImageResource(R.drawable.ic_action_send_now_offline);
 853		}
 854	}
 855
 856	protected void updateStatusMessages() {
 857		synchronized (this.messageList) {
 858			if (conversation.getMode() == Conversation.MODE_SINGLE) {
 859				ChatState state = conversation.getIncomingChatState();
 860				if (state == ChatState.COMPOSING) {
 861					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
 862				} else if (state == ChatState.PAUSED) {
 863					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
 864				} else {
 865					for (int i = this.messageList.size() - 1; i >= 0; --i) {
 866						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
 867							return;
 868						} else {
 869							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
 870								this.messageList.add(i + 1,
 871										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
 872								return;
 873							}
 874						}
 875					}
 876				}
 877			}
 878		}
 879	}
 880
 881	protected void makeFingerprintWarning() {
 882
 883	}
 884
 885	protected void showSnackbar(final int message, final int action,
 886			final OnClickListener clickListener) {
 887		snackbar.setVisibility(View.VISIBLE);
 888		snackbar.setOnClickListener(null);
 889		snackbarMessage.setText(message);
 890		snackbarMessage.setOnClickListener(null);
 891		snackbarAction.setVisibility(View.VISIBLE);
 892		snackbarAction.setText(action);
 893		snackbarAction.setOnClickListener(clickListener);
 894	}
 895
 896	protected void hideSnackbar() {
 897		snackbar.setVisibility(View.GONE);
 898	}
 899
 900	protected void sendPlainTextMessage(Message message) {
 901		ConversationActivity activity = (ConversationActivity) getActivity();
 902		activity.xmppConnectionService.sendMessage(message);
 903		messageSent();
 904	}
 905
 906	protected void sendPgpMessage(final Message message) {
 907		final ConversationActivity activity = (ConversationActivity) getActivity();
 908		final XmppConnectionService xmppService = activity.xmppConnectionService;
 909		final Contact contact = message.getConversation().getContact();
 910		if (activity.hasPgp()) {
 911			if (conversation.getMode() == Conversation.MODE_SINGLE) {
 912				if (contact.getPgpKeyId() != 0) {
 913					xmppService.getPgpEngine().hasKey(contact,
 914							new UiCallback<Contact>() {
 915
 916								@Override
 917								public void userInputRequried(PendingIntent pi,
 918										Contact contact) {
 919									activity.runIntent(
 920											pi,
 921											ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
 922								}
 923
 924								@Override
 925								public void success(Contact contact) {
 926									messageSent();
 927									activity.encryptTextMessage(message);
 928								}
 929
 930								@Override
 931								public void error(int error, Contact contact) {
 932
 933								}
 934							});
 935
 936				} else {
 937					showNoPGPKeyDialog(false,
 938							new DialogInterface.OnClickListener() {
 939
 940								@Override
 941								public void onClick(DialogInterface dialog,
 942										int which) {
 943									conversation
 944										.setNextEncryption(Message.ENCRYPTION_NONE);
 945									xmppService.databaseBackend
 946										.updateConversation(conversation);
 947									message.setEncryption(Message.ENCRYPTION_NONE);
 948									xmppService.sendMessage(message);
 949									messageSent();
 950								}
 951							});
 952				}
 953			} else {
 954				if (conversation.getMucOptions().pgpKeysInUse()) {
 955					if (!conversation.getMucOptions().everybodyHasKeys()) {
 956						Toast warning = Toast
 957							.makeText(getActivity(),
 958									R.string.missing_public_keys,
 959									Toast.LENGTH_LONG);
 960						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
 961						warning.show();
 962					}
 963					activity.encryptTextMessage(message);
 964					messageSent();
 965				} else {
 966					showNoPGPKeyDialog(true,
 967							new DialogInterface.OnClickListener() {
 968
 969								@Override
 970								public void onClick(DialogInterface dialog,
 971										int which) {
 972									conversation
 973										.setNextEncryption(Message.ENCRYPTION_NONE);
 974									message.setEncryption(Message.ENCRYPTION_NONE);
 975									xmppService.databaseBackend
 976										.updateConversation(conversation);
 977									xmppService.sendMessage(message);
 978									messageSent();
 979								}
 980							});
 981				}
 982			}
 983		} else {
 984			activity.showInstallPgpDialog();
 985		}
 986	}
 987
 988	public void showNoPGPKeyDialog(boolean plural,
 989			DialogInterface.OnClickListener listener) {
 990		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
 991		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 992		if (plural) {
 993			builder.setTitle(getString(R.string.no_pgp_keys));
 994			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
 995		} else {
 996			builder.setTitle(getString(R.string.no_pgp_key));
 997			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
 998		}
 999		builder.setNegativeButton(getString(R.string.cancel), null);
1000		builder.setPositiveButton(getString(R.string.send_unencrypted),
1001				listener);
1002		builder.create().show();
1003	}
1004
1005	protected void sendOtrMessage(final Message message) {
1006		final ConversationActivity activity = (ConversationActivity) getActivity();
1007		final XmppConnectionService xmppService = activity.xmppConnectionService;
1008		activity.selectPresence(message.getConversation(),
1009				new OnPresenceSelected() {
1010
1011					@Override
1012					public void onPresenceSelected() {
1013						message.setCounterpart(conversation.getNextCounterpart());
1014						xmppService.sendMessage(message);
1015						messageSent();
1016					}
1017				});
1018	}
1019
1020	public void appendText(String text) {
1021		if (text == null) {
1022			return;
1023		}
1024		String previous = this.mEditMessage.getText().toString();
1025		if (previous.length() != 0 && !previous.endsWith(" ")) {
1026			text = " " + text;
1027		}
1028		this.mEditMessage.append(text);
1029	}
1030
1031	@Override
1032	public boolean onEnterPressed() {
1033		if (activity.enterIsSend()) {
1034			sendMessage();
1035			return true;
1036		} else {
1037			return false;
1038		}
1039	}
1040
1041	@Override
1042	public void onTypingStarted() {
1043		Account.State status = conversation.getAccount().getStatus();
1044		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1045			activity.xmppConnectionService.sendChatState(conversation);
1046		}
1047	}
1048
1049	@Override
1050	public void onTypingStopped() {
1051		Account.State status = conversation.getAccount().getStatus();
1052		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1053			activity.xmppConnectionService.sendChatState(conversation);
1054		}
1055	}
1056
1057	@Override
1058	public void onTextDeleted() {
1059		Account.State status = conversation.getAccount().getStatus();
1060		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1061			activity.xmppConnectionService.sendChatState(conversation);
1062		}
1063	}
1064
1065}