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.utils.UIHelper;
  63import eu.siacs.conversations.xmpp.chatstate.ChatState;
  64import eu.siacs.conversations.xmpp.jid.Jid;
  65
  66public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  67
  68	protected Conversation conversation;
  69	private OnClickListener leaveMuc = new OnClickListener() {
  70
  71		@Override
  72		public void onClick(View v) {
  73			activity.endConversation(conversation);
  74		}
  75	};
  76	private OnClickListener joinMuc = new OnClickListener() {
  77
  78		@Override
  79		public void onClick(View v) {
  80			activity.xmppConnectionService.joinMuc(conversation);
  81		}
  82	};
  83	private OnClickListener enterPassword = new OnClickListener() {
  84
  85		@Override
  86		public void onClick(View v) {
  87			MucOptions muc = conversation.getMucOptions();
  88			String password = muc.getPassword();
  89			if (password == null) {
  90				password = "";
  91			}
  92			activity.quickPasswordEdit(password, new OnValueEdited() {
  93
  94				@Override
  95				public void onValueEdited(String value) {
  96					activity.xmppConnectionService.providePasswordForMuc(
  97							conversation, value);
  98				}
  99			});
 100		}
 101	};
 102	protected ListView messagesView;
 103	final protected List<Message> messageList = new ArrayList<>();
 104	protected MessageAdapter messageListAdapter;
 105	private EditMessage mEditMessage;
 106	private ImageButton mSendButton;
 107	private RelativeLayout snackbar;
 108	private TextView snackbarMessage;
 109	private TextView snackbarAction;
 110	private boolean messagesLoaded = true;
 111	private Toast messageLoaderToast;
 112
 113	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 114
 115		@Override
 116		public void onScrollStateChanged(AbsListView view, int scrollState) {
 117			// TODO Auto-generated method stub
 118
 119		}
 120
 121		private int getIndexOf(String uuid, List<Message> messages) {
 122			if (uuid == null) {
 123				return 0;
 124			}
 125			for(int i = 0; i < messages.size(); ++i) {
 126				if (uuid.equals(messages.get(i).getUuid())) {
 127					return i;
 128				} else {
 129					Message next = messages.get(i);
 130					while(next != null && next.wasMergedIntoPrevious()) {
 131						if (uuid.equals(next.getUuid())) {
 132							return i;
 133						}
 134						next = next.next();
 135					}
 136
 137				}
 138			}
 139			return 0;
 140		}
 141
 142		@Override
 143		public void onScroll(AbsListView view, int firstVisibleItem,
 144							 int visibleItemCount, int totalItemCount) {
 145			synchronized (ConversationFragment.this.messageList) {
 146				if (firstVisibleItem < 5 && messagesLoaded && messageList.size() > 0) {
 147					long timestamp = ConversationFragment.this.messageList.get(0).getTimeSent();
 148					messagesLoaded = false;
 149					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 150						@Override
 151						public void onMoreMessagesLoaded(final int c, Conversation conversation) {
 152							if (ConversationFragment.this.conversation != conversation) {
 153								return;
 154							}
 155							activity.runOnUiThread(new Runnable() {
 156								@Override
 157								public void run() {
 158									final int oldPosition = messagesView.getFirstVisiblePosition();
 159									Message message = messageList.get(oldPosition);
 160									String uuid = message != null ? message.getUuid() : null;
 161									View v = messagesView.getChildAt(0);
 162									final int pxOffset = (v == null) ? 0 : v.getTop();
 163									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 164									updateStatusMessages();
 165									messageListAdapter.notifyDataSetChanged();
 166									int pos = getIndexOf(uuid,messageList);
 167									messagesView.setSelectionFromTop(pos, pxOffset);
 168									messagesLoaded = true;
 169									if (messageLoaderToast != null) {
 170										messageLoaderToast.cancel();
 171									}
 172								}
 173							});
 174						}
 175
 176						@Override
 177						public void informUser(final int resId) {
 178
 179							activity.runOnUiThread(new Runnable() {
 180								@Override
 181								public void run() {
 182									if (messageLoaderToast != null) {
 183										messageLoaderToast.cancel();
 184									}
 185									if (ConversationFragment.this.conversation != conversation) {
 186										return;
 187									}
 188									messageLoaderToast = Toast.makeText(activity, resId, Toast.LENGTH_LONG);
 189									messageLoaderToast.show();
 190								}
 191							});
 192
 193						}
 194					});
 195
 196				}
 197			}
 198		}
 199	};
 200	private IntentSender askForPassphraseIntent = null;
 201	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 202
 203		@Override
 204		public void onClick(View v) {
 205			if (activity.hasPgp() && askForPassphraseIntent != null) {
 206				try {
 207					getActivity().startIntentSenderForResult(
 208							askForPassphraseIntent,
 209							ConversationActivity.REQUEST_DECRYPT_PGP, null, 0,
 210							0, 0);
 211					askForPassphraseIntent = null;
 212				} catch (SendIntentException e) {
 213					//
 214				}
 215			}
 216		}
 217	};
 218	protected OnClickListener clickToVerify = new OnClickListener() {
 219
 220		@Override
 221		public void onClick(View v) {
 222			activity.verifyOtrSessionDialog(conversation, v);
 223		}
 224	};
 225	private ConcurrentLinkedQueue<Message> mEncryptedMessages = new ConcurrentLinkedQueue<>();
 226	private boolean mDecryptJobRunning = false;
 227	private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
 228
 229		@Override
 230		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 231			if (actionId == EditorInfo.IME_ACTION_SEND) {
 232				InputMethodManager imm = (InputMethodManager) v.getContext()
 233						.getSystemService(Context.INPUT_METHOD_SERVICE);
 234				imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 235				sendMessage();
 236				return true;
 237			} else {
 238				return false;
 239			}
 240		}
 241	};
 242	private OnClickListener mSendButtonListener = new OnClickListener() {
 243
 244		@Override
 245		public void onClick(View v) {
 246			Object tag = v.getTag();
 247			if (tag instanceof SendButtonAction) {
 248				SendButtonAction action = (SendButtonAction) tag;
 249				switch (action) {
 250					case TAKE_PHOTO:
 251						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_TAKE_PHOTO);
 252						break;
 253					case SEND_LOCATION:
 254						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_LOCATION);
 255						break;
 256					case RECORD_VOICE:
 257						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
 258						break;
 259					case CANCEL:
 260						if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 261							conversation.setNextCounterpart(null);
 262							updateChatMsgHint();
 263							updateSendButton();
 264						}
 265						break;
 266					default:
 267						sendMessage();
 268				}
 269			} else {
 270				sendMessage();
 271			}
 272		}
 273	};
 274	private OnClickListener clickToMuc = new OnClickListener() {
 275
 276		@Override
 277		public void onClick(View v) {
 278			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 279			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 280			intent.putExtra("uuid", conversation.getUuid());
 281			startActivity(intent);
 282		}
 283	};
 284	private ConversationActivity activity;
 285	private Message selectedMessage;
 286
 287	private void sendMessage() {
 288		final String body = mEditMessage.getText().toString();
 289		if (body.length() == 0 || this.conversation == null) {
 290			return;
 291		}
 292		Message message = new Message(conversation, body, conversation.getNextEncryption(activity.forceEncryption()));
 293		if (conversation.getMode() == Conversation.MODE_MULTI) {
 294			if (conversation.getNextCounterpart() != null) {
 295				message.setCounterpart(conversation.getNextCounterpart());
 296				message.setType(Message.TYPE_PRIVATE);
 297			}
 298		}
 299		if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_OTR) {
 300			sendOtrMessage(message);
 301		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_PGP) {
 302			sendPgpMessage(message);
 303		} else {
 304			sendPlainTextMessage(message);
 305		}
 306	}
 307
 308	public void updateChatMsgHint() {
 309		if (conversation.getMode() == Conversation.MODE_MULTI
 310				&& conversation.getNextCounterpart() != null) {
 311			this.mEditMessage.setHint(getString(
 312					R.string.send_private_message_to,
 313					conversation.getNextCounterpart().getResourcepart()));
 314		} else {
 315			switch (conversation.getNextEncryption(activity.forceEncryption())) {
 316				case Message.ENCRYPTION_NONE:
 317					mEditMessage
 318							.setHint(getString(R.string.send_plain_text_message));
 319					break;
 320				case Message.ENCRYPTION_OTR:
 321					mEditMessage.setHint(getString(R.string.send_otr_message));
 322					break;
 323				case Message.ENCRYPTION_PGP:
 324					mEditMessage.setHint(getString(R.string.send_pgp_message));
 325					break;
 326				default:
 327					break;
 328			}
 329			getActivity().invalidateOptionsMenu();
 330		}
 331	}
 332
 333	private void setupIme() {
 334		if (((ConversationActivity) getActivity()).usingEnterKey()) {
 335			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 336		} else {
 337			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 338		}
 339	}
 340
 341	@Override
 342	public View onCreateView(final LayoutInflater inflater,
 343							 ViewGroup container, Bundle savedInstanceState) {
 344		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
 345		view.setOnClickListener(null);
 346		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 347		setupIme();
 348		mEditMessage.setOnClickListener(new OnClickListener() {
 349
 350			@Override
 351			public void onClick(View v) {
 352				if (activity != null) {
 353					activity.hideConversationsOverview();
 354				}
 355			}
 356		});
 357		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 358
 359		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 360		mSendButton.setOnClickListener(this.mSendButtonListener);
 361
 362		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 363		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 364		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 365
 366		messagesView = (ListView) view.findViewById(R.id.messages_view);
 367		messagesView.setOnScrollListener(mOnScrollListener);
 368		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 369		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 370		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 371
 372			@Override
 373			public void onContactPictureClicked(Message message) {
 374				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 375					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 376						if (message.getCounterpart() != null) {
 377							if (!message.getCounterpart().isBareJid()) {
 378								highlightInConference(message.getCounterpart().getResourcepart());
 379							} else {
 380								highlightInConference(message.getCounterpart().toString());
 381							}
 382						}
 383					} else {
 384						activity.switchToContactDetails(message.getContact());
 385					}
 386				} else {
 387					Account account = message.getConversation().getAccount();
 388					Intent intent = new Intent(activity, EditAccountActivity.class);
 389					intent.putExtra("jid", account.getJid().toBareJid().toString());
 390					startActivity(intent);
 391				}
 392			}
 393		});
 394		messageListAdapter
 395				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 396
 397					@Override
 398					public void onContactPictureLongClicked(Message message) {
 399						if (message.getStatus() <= Message.STATUS_RECEIVED) {
 400							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 401								if (message.getCounterpart() != null) {
 402									privateMessageWith(message.getCounterpart());
 403								}
 404							}
 405						} else {
 406							activity.showQrCode();
 407						}
 408					}
 409				});
 410		messagesView.setAdapter(messageListAdapter);
 411
 412		registerForContextMenu(messagesView);
 413
 414		return view;
 415	}
 416
 417	@Override
 418	public void onCreateContextMenu(ContextMenu menu, View v,
 419									ContextMenuInfo menuInfo) {
 420		synchronized (this.messageList) {
 421			super.onCreateContextMenu(menu, v, menuInfo);
 422			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 423			this.selectedMessage = this.messageList.get(acmi.position);
 424			populateContextMenu(menu);
 425		}
 426	}
 427
 428	private void populateContextMenu(ContextMenu menu) {
 429		final Message m = this.selectedMessage;
 430		if (m.getType() != Message.TYPE_STATUS) {
 431			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 432			menu.setHeaderTitle(R.string.message_options);
 433			MenuItem copyText = menu.findItem(R.id.copy_text);
 434			MenuItem shareWith = menu.findItem(R.id.share_with);
 435			MenuItem sendAgain = menu.findItem(R.id.send_again);
 436			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 437			MenuItem downloadImage = menu.findItem(R.id.download_image);
 438			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 439			if ((m.getType() != Message.TYPE_TEXT && m.getType() != Message.TYPE_PRIVATE)
 440					|| m.getDownloadable() != null || GeoHelper.isGeoUri(m.getBody())) {
 441				copyText.setVisible(false);
 442			}
 443			if ((m.getType() == Message.TYPE_TEXT
 444					|| m.getType() == Message.TYPE_PRIVATE
 445					|| m.getDownloadable() != null)
 446					&& (!GeoHelper.isGeoUri(m.getBody()))) {
 447				shareWith.setVisible(false);
 448			}
 449			if (m.getStatus() != Message.STATUS_SEND_FAILED) {
 450				sendAgain.setVisible(false);
 451			}
 452			if (((m.getType() != Message.TYPE_IMAGE && m.getDownloadable() == null)
 453					|| m.getImageParams().url == null) && !GeoHelper.isGeoUri(m.getBody())) {
 454				copyUrl.setVisible(false);
 455			}
 456			if (m.getType() != Message.TYPE_TEXT
 457					|| m.getDownloadable() != null
 458					|| !m.bodyContainsDownloadable()) {
 459				downloadImage.setVisible(false);
 460			}
 461			if (!((m.getDownloadable() != null && !(m.getDownloadable() instanceof DownloadablePlaceholder))
 462					|| (m.isFileOrImage() && (m.getStatus() == Message.STATUS_WAITING
 463					|| m.getStatus() == Message.STATUS_OFFERED)))) {
 464				cancelTransmission.setVisible(false);
 465			}
 466		}
 467	}
 468
 469	@Override
 470	public boolean onContextItemSelected(MenuItem item) {
 471		switch (item.getItemId()) {
 472			case R.id.share_with:
 473				shareWith(selectedMessage);
 474				return true;
 475			case R.id.copy_text:
 476				copyText(selectedMessage);
 477				return true;
 478			case R.id.send_again:
 479				resendMessage(selectedMessage);
 480				return true;
 481			case R.id.copy_url:
 482				copyUrl(selectedMessage);
 483				return true;
 484			case R.id.download_image:
 485				downloadImage(selectedMessage);
 486				return true;
 487			case R.id.cancel_transmission:
 488				cancelTransmission(selectedMessage);
 489				return true;
 490			default:
 491				return super.onContextItemSelected(item);
 492		}
 493	}
 494
 495	private void shareWith(Message message) {
 496		Intent shareIntent = new Intent();
 497		shareIntent.setAction(Intent.ACTION_SEND);
 498		if (GeoHelper.isGeoUri(message.getBody())) {
 499			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 500			shareIntent.setType("text/plain");
 501		} else {
 502			shareIntent.putExtra(Intent.EXTRA_STREAM,
 503					activity.xmppConnectionService.getFileBackend()
 504							.getJingleFileUri(message));
 505			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 506			String path = message.getRelativeFilePath();
 507			String mime = path == null ? null : URLConnection.guessContentTypeFromName(path);
 508			if (mime == null) {
 509				mime = "image/webp";
 510			}
 511			shareIntent.setType(mime);
 512		}
 513		activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
 514	}
 515
 516	private void copyText(Message message) {
 517		if (activity.copyTextToClipboard(message.getMergedBody(),
 518				R.string.message_text)) {
 519			Toast.makeText(activity, R.string.message_copied_to_clipboard,
 520					Toast.LENGTH_SHORT).show();
 521		}
 522	}
 523
 524	private void resendMessage(Message message) {
 525		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 526			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 527			if (!file.exists()) {
 528				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 529				message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 530				return;
 531			}
 532		}
 533		activity.xmppConnectionService.resendFailedMessages(message);
 534	}
 535
 536	private void copyUrl(Message message) {
 537		final String url;
 538		final int resId;
 539		if (GeoHelper.isGeoUri(message.getBody())) {
 540			resId = R.string.location;
 541			url = message.getBody();
 542		} else {
 543			resId = R.string.image_url;
 544			url = message.getImageParams().url.toString();
 545		}
 546		if (activity.copyTextToClipboard(url, resId)) {
 547			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 548					Toast.LENGTH_SHORT).show();
 549		}
 550	}
 551
 552	private void downloadImage(Message message) {
 553		activity.xmppConnectionService.getHttpConnectionManager()
 554				.createNewConnection(message);
 555	}
 556
 557	private void cancelTransmission(Message message) {
 558		Downloadable downloadable = message.getDownloadable();
 559		if (downloadable != null) {
 560			downloadable.cancel();
 561		} else {
 562			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
 563		}
 564	}
 565
 566	protected void privateMessageWith(final Jid counterpart) {
 567		this.mEditMessage.setText("");
 568		this.conversation.setNextCounterpart(counterpart);
 569		updateChatMsgHint();
 570		updateSendButton();
 571	}
 572
 573	protected void highlightInConference(String nick) {
 574		String oldString = mEditMessage.getText().toString().trim();
 575		if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
 576			mEditMessage.getText().insert(0, nick + ": ");
 577		} else {
 578			if (mEditMessage.getText().charAt(
 579					mEditMessage.getSelectionStart() - 1) != ' ') {
 580				nick = " " + nick;
 581			}
 582			mEditMessage.getText().insert(mEditMessage.getSelectionStart(),
 583					nick + " ");
 584		}
 585	}
 586
 587	@Override
 588	public void onStop() {
 589		mDecryptJobRunning = false;
 590		super.onStop();
 591		if (this.conversation != null) {
 592			final String msg = mEditMessage.getText().toString();
 593			this.conversation.setNextMessage(msg);
 594			updateChatState(this.conversation, msg);
 595		}
 596	}
 597
 598	private void updateChatState(final Conversation conversation, final String msg) {
 599		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 600		Account.State status = conversation.getAccount().getStatus();
 601		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 602			activity.xmppConnectionService.sendChatState(conversation);
 603		}
 604	}
 605
 606	public void reInit(Conversation conversation) {
 607		if (conversation == null) {
 608			return;
 609		}
 610
 611		this.activity = (ConversationActivity) getActivity();
 612
 613		if (this.conversation != null) {
 614			final String msg = mEditMessage.getText().toString();
 615			this.conversation.setNextMessage(msg);
 616			if (this.conversation != conversation) {
 617				updateChatState(this.conversation, msg);
 618			}
 619			this.conversation.trim();
 620		}
 621
 622		this.askForPassphraseIntent = null;
 623		this.conversation = conversation;
 624		this.mDecryptJobRunning = false;
 625		this.mEncryptedMessages.clear();
 626		if (this.conversation.getMode() == Conversation.MODE_MULTI) {
 627			this.conversation.setNextCounterpart(null);
 628		}
 629		this.mEditMessage.setKeyboardListener(null);
 630		this.mEditMessage.setText("");
 631		this.mEditMessage.append(this.conversation.getNextMessage());
 632		this.mEditMessage.setKeyboardListener(this);
 633		this.messagesView.setAdapter(messageListAdapter);
 634		updateMessages();
 635		this.messagesLoaded = true;
 636		int size = this.messageList.size();
 637		if (size > 0) {
 638			messagesView.setSelection(size - 1);
 639		}
 640	}
 641
 642	private OnClickListener mUnblockClickListener = new OnClickListener() {
 643		@Override
 644		public void onClick(final View v) {
 645			v.post(new Runnable() {
 646				@Override
 647				public void run() {
 648					v.setVisibility(View.INVISIBLE);
 649				}
 650			});
 651			if (conversation.isDomainBlocked()) {
 652				BlockContactDialog.show(activity, activity.xmppConnectionService, conversation);
 653			} else {
 654				activity.unblockConversation(conversation);
 655			}
 656		}
 657	};
 658
 659	private OnClickListener mAddBackClickListener = new OnClickListener() {
 660
 661		@Override
 662		public void onClick(View v) {
 663			final Contact contact = conversation == null ? null : conversation.getContact();
 664			if (contact != null) {
 665				activity.xmppConnectionService.createContact(contact);
 666				activity.switchToContactDetails(contact);
 667			}
 668		}
 669	};
 670
 671	private OnClickListener mUnmuteClickListener = new OnClickListener() {
 672
 673		@Override
 674		public void onClick(final View v) {
 675			activity.unmuteConversation(conversation);
 676		}
 677	};
 678
 679	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
 680		@Override
 681		public void onClick(View view) {
 682			Intent intent = new Intent(activity, VerifyOTRActivity.class);
 683			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 684			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 685			intent.putExtra("account", conversation.getAccount().getJid().toBareJid().toString());
 686			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
 687			startActivity(intent);
 688		}
 689	};
 690
 691	private void updateSnackBar(final Conversation conversation) {
 692		final Account account = conversation.getAccount();
 693		final Contact contact = conversation.getContact();
 694		final int mode = conversation.getMode();
 695		if (conversation.isBlocked()) {
 696			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
 697		} else if (!contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 698			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener);
 699		} else if (mode == Conversation.MODE_MULTI
 700				&& !conversation.getMucOptions().online()
 701				&& account.getStatus() == Account.State.ONLINE) {
 702			switch (conversation.getMucOptions().getError()) {
 703				case MucOptions.ERROR_NICK_IN_USE:
 704					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
 705					break;
 706				case MucOptions.ERROR_UNKNOWN:
 707					showSnackbar(R.string.conference_not_found, R.string.leave, leaveMuc);
 708					break;
 709				case MucOptions.ERROR_PASSWORD_REQUIRED:
 710					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 711					break;
 712				case MucOptions.ERROR_BANNED:
 713					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
 714					break;
 715				case MucOptions.ERROR_MEMBERS_ONLY:
 716					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
 717					break;
 718				case MucOptions.KICKED_FROM_ROOM:
 719					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
 720					break;
 721				default:
 722					break;
 723			}
 724		} else if (askForPassphraseIntent != null) {
 725			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
 726		} else if (mode == Conversation.MODE_SINGLE
 727				&& conversation.smpRequested()) {
 728			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
 729		} else if (mode == Conversation.MODE_SINGLE
 730				&& conversation.hasValidOtrSession()
 731				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
 732				&& (!conversation.isOtrFingerprintVerified())) {
 733			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
 734		} else if (conversation.isMuted()) {
 735			showSnackbar(R.string.notifications_disabled, R.string.enable, this.mUnmuteClickListener);
 736		} else {
 737			hideSnackbar();
 738		}
 739	}
 740
 741	public void updateMessages() {
 742		synchronized (this.messageList) {
 743			if (getView() == null) {
 744				return;
 745			}
 746			final ConversationActivity activity = (ConversationActivity) getActivity();
 747			if (this.conversation != null) {
 748				updateSnackBar(this.conversation);
 749				conversation.populateWithMessages(ConversationFragment.this.messageList);
 750				for (final Message message : this.messageList) {
 751					if (message.getEncryption() == Message.ENCRYPTION_PGP
 752							&& (message.getStatus() == Message.STATUS_RECEIVED || message
 753							.getStatus() >= Message.STATUS_SEND)
 754							&& message.getDownloadable() == null) {
 755						if (!mEncryptedMessages.contains(message)) {
 756							mEncryptedMessages.add(message);
 757						}
 758					}
 759				}
 760				decryptNext();
 761				updateStatusMessages();
 762				this.messageListAdapter.notifyDataSetChanged();
 763				updateChatMsgHint();
 764				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
 765					activity.sendReadMarkerIfNecessary(conversation);
 766				}
 767				this.updateSendButton();
 768			}
 769		}
 770	}
 771
 772	private void decryptNext() {
 773		Message next = this.mEncryptedMessages.peek();
 774		PgpEngine engine = activity.xmppConnectionService.getPgpEngine();
 775
 776		if (next != null && engine != null && !mDecryptJobRunning) {
 777			mDecryptJobRunning = true;
 778			engine.decrypt(next, new UiCallback<Message>() {
 779
 780				@Override
 781				public void userInputRequried(PendingIntent pi, Message message) {
 782					mDecryptJobRunning = false;
 783					askForPassphraseIntent = pi.getIntentSender();
 784					updateSnackBar(conversation);
 785				}
 786
 787				@Override
 788				public void success(Message message) {
 789					mDecryptJobRunning = false;
 790					try {
 791						mEncryptedMessages.remove();
 792					} catch (final NoSuchElementException ignored) {
 793
 794					}
 795					askForPassphraseIntent = null;
 796					activity.xmppConnectionService.updateMessage(message);
 797				}
 798
 799				@Override
 800				public void error(int error, Message message) {
 801					message.setEncryption(Message.ENCRYPTION_DECRYPTION_FAILED);
 802					mDecryptJobRunning = false;
 803					try {
 804						mEncryptedMessages.remove();
 805					} catch (final NoSuchElementException ignored) {
 806
 807					}
 808					activity.xmppConnectionService.updateConversationUi();
 809				}
 810			});
 811		}
 812	}
 813
 814	private void messageSent() {
 815		int size = this.messageList.size();
 816		messagesView.setSelection(size - 1);
 817		mEditMessage.setText("");
 818		updateChatMsgHint();
 819	}
 820
 821	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL}
 822
 823	private int getSendButtonImageResource(SendButtonAction action, int status) {
 824		switch (action) {
 825			case TEXT:
 826				switch (status) {
 827					case Presences.CHAT:
 828					case Presences.ONLINE:
 829						return R.drawable.ic_send_text_online;
 830					case Presences.AWAY:
 831						return R.drawable.ic_send_text_away;
 832					case Presences.XA:
 833					case Presences.DND:
 834						return R.drawable.ic_send_text_dnd;
 835					default:
 836						return R.drawable.ic_send_text_offline;
 837				}
 838			case TAKE_PHOTO:
 839				switch (status) {
 840					case Presences.CHAT:
 841					case Presences.ONLINE:
 842						return R.drawable.ic_send_photo_online;
 843					case Presences.AWAY:
 844						return R.drawable.ic_send_photo_away;
 845					case Presences.XA:
 846					case Presences.DND:
 847						return R.drawable.ic_send_photo_dnd;
 848					default:
 849						return R.drawable.ic_send_photo_offline;
 850				}
 851			case RECORD_VOICE:
 852				switch (status) {
 853					case Presences.CHAT:
 854					case Presences.ONLINE:
 855						return R.drawable.ic_send_voice_online;
 856					case Presences.AWAY:
 857						return R.drawable.ic_send_voice_away;
 858					case Presences.XA:
 859					case Presences.DND:
 860						return R.drawable.ic_send_voice_dnd;
 861					default:
 862						return R.drawable.ic_send_voice_offline;
 863				}
 864			case SEND_LOCATION:
 865				switch (status) {
 866					case Presences.CHAT:
 867					case Presences.ONLINE:
 868						return R.drawable.ic_send_location_online;
 869					case Presences.AWAY:
 870						return R.drawable.ic_send_location_away;
 871					case Presences.XA:
 872					case Presences.DND:
 873						return R.drawable.ic_send_location_dnd;
 874					default:
 875						return R.drawable.ic_send_location_offline;
 876				}
 877			case CANCEL:
 878				switch (status) {
 879					case Presences.CHAT:
 880					case Presences.ONLINE:
 881						return R.drawable.ic_send_cancel_online;
 882					case Presences.AWAY:
 883						return R.drawable.ic_send_cancel_away;
 884					case Presences.XA:
 885					case Presences.DND:
 886						return R.drawable.ic_send_cancel_dnd;
 887					default:
 888						return R.drawable.ic_send_cancel_offline;
 889				}
 890		}
 891		return R.drawable.ic_send_text_offline;
 892	}
 893
 894	public void updateSendButton() {
 895		final Conversation c = this.conversation;
 896		final SendButtonAction action;
 897		final int status;
 898		final boolean empty = this.mEditMessage == null || this.mEditMessage.getText().length() == 0;
 899		if (c.getMode() == Conversation.MODE_MULTI) {
 900			if (empty && c.getNextCounterpart() != null) {
 901				action = SendButtonAction.CANCEL;
 902			} else {
 903				action = SendButtonAction.TEXT;
 904			}
 905		} else {
 906			if (empty) {
 907				String setting = activity.getPreferences().getString("quick_action","recent");
 908				if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
 909					setting = "location";
 910				} else if (setting.equals("recent")) {
 911					setting = activity.getPreferences().getString("recently_used_quick_action","text");
 912				}
 913				switch (setting) {
 914					case "photo":
 915						action = SendButtonAction.TAKE_PHOTO;
 916						break;
 917					case "location":
 918						action = SendButtonAction.SEND_LOCATION;
 919						break;
 920					case "voice":
 921						action = SendButtonAction.RECORD_VOICE;
 922						break;
 923					default:
 924						action = SendButtonAction.TEXT;
 925						break;
 926				}
 927			} else {
 928				action = SendButtonAction.TEXT;
 929			}
 930		}
 931		if (activity.useSendButtonToIndicateStatus() && c != null
 932				&& c.getAccount().getStatus() == Account.State.ONLINE) {
 933			if (c.getMode() == Conversation.MODE_SINGLE) {
 934				status = c.getContact().getMostAvailableStatus();
 935			} else {
 936				status = c.getMucOptions().online() ? Presences.ONLINE : Presences.OFFLINE;
 937			}
 938		} else {
 939			status = Presences.OFFLINE;
 940		}
 941		this.mSendButton.setTag(action);
 942		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
 943	}
 944
 945	protected void updateStatusMessages() {
 946		synchronized (this.messageList) {
 947			if (conversation.getMode() == Conversation.MODE_SINGLE) {
 948				ChatState state = conversation.getIncomingChatState();
 949				if (state == ChatState.COMPOSING) {
 950					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
 951				} else if (state == ChatState.PAUSED) {
 952					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
 953				} else {
 954					for (int i = this.messageList.size() - 1; i >= 0; --i) {
 955						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
 956							return;
 957						} else {
 958							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
 959								this.messageList.add(i + 1,
 960										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
 961								return;
 962							}
 963						}
 964					}
 965				}
 966			}
 967		}
 968	}
 969
 970	protected void showSnackbar(final int message, final int action,
 971								final OnClickListener clickListener) {
 972		snackbar.setVisibility(View.VISIBLE);
 973		snackbar.setOnClickListener(null);
 974		snackbarMessage.setText(message);
 975		snackbarMessage.setOnClickListener(null);
 976		snackbarAction.setVisibility(View.VISIBLE);
 977		snackbarAction.setText(action);
 978		snackbarAction.setOnClickListener(clickListener);
 979	}
 980
 981	protected void hideSnackbar() {
 982		snackbar.setVisibility(View.GONE);
 983	}
 984
 985	protected void sendPlainTextMessage(Message message) {
 986		ConversationActivity activity = (ConversationActivity) getActivity();
 987		activity.xmppConnectionService.sendMessage(message);
 988		messageSent();
 989	}
 990
 991	protected void sendPgpMessage(final Message message) {
 992		final ConversationActivity activity = (ConversationActivity) getActivity();
 993		final XmppConnectionService xmppService = activity.xmppConnectionService;
 994		final Contact contact = message.getConversation().getContact();
 995		if (activity.hasPgp()) {
 996			if (conversation.getMode() == Conversation.MODE_SINGLE) {
 997				if (contact.getPgpKeyId() != 0) {
 998					xmppService.getPgpEngine().hasKey(contact,
 999							new UiCallback<Contact>() {
1000
1001								@Override
1002								public void userInputRequried(PendingIntent pi,
1003															  Contact contact) {
1004									activity.runIntent(
1005											pi,
1006											ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
1007								}
1008
1009								@Override
1010								public void success(Contact contact) {
1011									messageSent();
1012									activity.encryptTextMessage(message);
1013								}
1014
1015								@Override
1016								public void error(int error, Contact contact) {
1017
1018								}
1019							});
1020
1021				} else {
1022					showNoPGPKeyDialog(false,
1023							new DialogInterface.OnClickListener() {
1024
1025								@Override
1026								public void onClick(DialogInterface dialog,
1027													int which) {
1028									conversation
1029											.setNextEncryption(Message.ENCRYPTION_NONE);
1030									xmppService.databaseBackend
1031											.updateConversation(conversation);
1032									message.setEncryption(Message.ENCRYPTION_NONE);
1033									xmppService.sendMessage(message);
1034									messageSent();
1035								}
1036							});
1037				}
1038			} else {
1039				if (conversation.getMucOptions().pgpKeysInUse()) {
1040					if (!conversation.getMucOptions().everybodyHasKeys()) {
1041						Toast warning = Toast
1042								.makeText(getActivity(),
1043										R.string.missing_public_keys,
1044										Toast.LENGTH_LONG);
1045						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1046						warning.show();
1047					}
1048					activity.encryptTextMessage(message);
1049					messageSent();
1050				} else {
1051					showNoPGPKeyDialog(true,
1052							new DialogInterface.OnClickListener() {
1053
1054								@Override
1055								public void onClick(DialogInterface dialog,
1056													int which) {
1057									conversation
1058											.setNextEncryption(Message.ENCRYPTION_NONE);
1059									message.setEncryption(Message.ENCRYPTION_NONE);
1060									xmppService.databaseBackend
1061											.updateConversation(conversation);
1062									xmppService.sendMessage(message);
1063									messageSent();
1064								}
1065							});
1066				}
1067			}
1068		} else {
1069			activity.showInstallPgpDialog();
1070		}
1071	}
1072
1073	public void showNoPGPKeyDialog(boolean plural,
1074								   DialogInterface.OnClickListener listener) {
1075		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1076		builder.setIconAttribute(android.R.attr.alertDialogIcon);
1077		if (plural) {
1078			builder.setTitle(getString(R.string.no_pgp_keys));
1079			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
1080		} else {
1081			builder.setTitle(getString(R.string.no_pgp_key));
1082			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
1083		}
1084		builder.setNegativeButton(getString(R.string.cancel), null);
1085		builder.setPositiveButton(getString(R.string.send_unencrypted),
1086				listener);
1087		builder.create().show();
1088	}
1089
1090	protected void sendOtrMessage(final Message message) {
1091		final ConversationActivity activity = (ConversationActivity) getActivity();
1092		final XmppConnectionService xmppService = activity.xmppConnectionService;
1093		activity.selectPresence(message.getConversation(),
1094				new OnPresenceSelected() {
1095
1096					@Override
1097					public void onPresenceSelected() {
1098						message.setCounterpart(conversation.getNextCounterpart());
1099						xmppService.sendMessage(message);
1100						messageSent();
1101					}
1102				});
1103	}
1104
1105	public void appendText(String text) {
1106		if (text == null) {
1107			return;
1108		}
1109		String previous = this.mEditMessage.getText().toString();
1110		if (previous.length() != 0 && !previous.endsWith(" ")) {
1111			text = " " + text;
1112		}
1113		this.mEditMessage.append(text);
1114	}
1115
1116	@Override
1117	public boolean onEnterPressed() {
1118		if (activity.enterIsSend()) {
1119			sendMessage();
1120			return true;
1121		} else {
1122			return false;
1123		}
1124	}
1125
1126	@Override
1127	public void onTypingStarted() {
1128		Account.State status = conversation.getAccount().getStatus();
1129		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1130			activity.xmppConnectionService.sendChatState(conversation);
1131		}
1132		updateSendButton();
1133	}
1134
1135	@Override
1136	public void onTypingStopped() {
1137		Account.State status = conversation.getAccount().getStatus();
1138		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1139			activity.xmppConnectionService.sendChatState(conversation);
1140		}
1141	}
1142
1143	@Override
1144	public void onTextDeleted() {
1145		Account.State status = conversation.getAccount().getStatus();
1146		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1147			activity.xmppConnectionService.sendChatState(conversation);
1148		}
1149		updateSendButton();
1150	}
1151
1152}