ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.app.AlertDialog;
   4import android.app.Fragment;
   5import android.app.PendingIntent;
   6import android.content.ActivityNotFoundException;
   7import android.content.Context;
   8import android.content.DialogInterface;
   9import android.content.Intent;
  10import android.content.IntentSender;
  11import android.content.IntentSender.SendIntentException;
  12import android.os.Bundle;
  13import android.text.InputType;
  14import android.view.ContextMenu;
  15import android.view.ContextMenu.ContextMenuInfo;
  16import android.view.Gravity;
  17import android.view.KeyEvent;
  18import android.view.LayoutInflater;
  19import android.view.MenuItem;
  20import android.view.View;
  21import android.view.View.OnClickListener;
  22import android.view.ViewGroup;
  23import android.view.inputmethod.EditorInfo;
  24import android.view.inputmethod.InputMethodManager;
  25import android.widget.AbsListView;
  26import android.widget.AbsListView.OnScrollListener;
  27import android.widget.AdapterView;
  28import android.widget.AdapterView.AdapterContextMenuInfo;
  29import android.widget.ImageButton;
  30import android.widget.ListView;
  31import android.widget.RelativeLayout;
  32import android.widget.TextView;
  33import android.widget.TextView.OnEditorActionListener;
  34import android.widget.Toast;
  35
  36import net.java.otr4j.session.SessionStatus;
  37
  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.Transferable;
  50import eu.siacs.conversations.entities.DownloadableFile;
  51import eu.siacs.conversations.entities.TransferablePlaceholder;
  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 CHOOSE_PICTURE:
 260						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 261						break;
 262					case CANCEL:
 263						if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 264							conversation.setNextCounterpart(null);
 265							updateChatMsgHint();
 266							updateSendButton();
 267						}
 268						break;
 269					default:
 270						sendMessage();
 271				}
 272			} else {
 273				sendMessage();
 274			}
 275		}
 276	};
 277	private OnClickListener clickToMuc = new OnClickListener() {
 278
 279		@Override
 280		public void onClick(View v) {
 281			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 282			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 283			intent.putExtra("uuid", conversation.getUuid());
 284			startActivity(intent);
 285		}
 286	};
 287	private ConversationActivity activity;
 288	private Message selectedMessage;
 289
 290	private void sendMessage() {
 291		final String body = mEditMessage.getText().toString();
 292		if (body.length() == 0 || this.conversation == null) {
 293			return;
 294		}
 295		Message message = new Message(conversation, body, conversation.getNextEncryption(activity.forceEncryption()));
 296		if (conversation.getMode() == Conversation.MODE_MULTI) {
 297			if (conversation.getNextCounterpart() != null) {
 298				message.setCounterpart(conversation.getNextCounterpart());
 299				message.setType(Message.TYPE_PRIVATE);
 300			}
 301		}
 302		if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_OTR) {
 303			sendOtrMessage(message);
 304		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_PGP) {
 305			sendPgpMessage(message);
 306		} else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_AXOLOTL) {
 307			sendAxolotlMessage(message);
 308		} else {
 309			sendPlainTextMessage(message);
 310		}
 311	}
 312
 313	public void updateChatMsgHint() {
 314		if (conversation.getMode() == Conversation.MODE_MULTI
 315				&& conversation.getNextCounterpart() != null) {
 316			this.mEditMessage.setHint(getString(
 317					R.string.send_private_message_to,
 318					conversation.getNextCounterpart().getResourcepart()));
 319		} else {
 320			switch (conversation.getNextEncryption(activity.forceEncryption())) {
 321				case Message.ENCRYPTION_NONE:
 322					mEditMessage
 323							.setHint(getString(R.string.send_plain_text_message));
 324					break;
 325				case Message.ENCRYPTION_OTR:
 326					mEditMessage.setHint(getString(R.string.send_otr_message));
 327					break;
 328				case Message.ENCRYPTION_AXOLOTL:
 329					mEditMessage.setHint(getString(R.string.send_axolotl_message));
 330					break;
 331				case Message.ENCRYPTION_PGP:
 332					mEditMessage.setHint(getString(R.string.send_pgp_message));
 333					break;
 334				default:
 335					break;
 336			}
 337			getActivity().invalidateOptionsMenu();
 338		}
 339	}
 340
 341	private void setupIme() {
 342		if (((ConversationActivity) getActivity()).usingEnterKey()) {
 343			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 344		} else {
 345			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 346		}
 347	}
 348
 349	@Override
 350	public View onCreateView(final LayoutInflater inflater,
 351							 ViewGroup container, Bundle savedInstanceState) {
 352		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
 353		view.setOnClickListener(null);
 354		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 355		setupIme();
 356		mEditMessage.setOnClickListener(new OnClickListener() {
 357
 358			@Override
 359			public void onClick(View v) {
 360				if (activity != null) {
 361					activity.hideConversationsOverview();
 362				}
 363			}
 364		});
 365		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 366
 367		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 368		mSendButton.setOnClickListener(this.mSendButtonListener);
 369
 370		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 371		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 372		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 373
 374		messagesView = (ListView) view.findViewById(R.id.messages_view);
 375		messagesView.setOnScrollListener(mOnScrollListener);
 376		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 377		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 378		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 379
 380			@Override
 381			public void onContactPictureClicked(Message message) {
 382				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 383					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 384						if (message.getCounterpart() != null) {
 385							if (!message.getCounterpart().isBareJid()) {
 386								highlightInConference(message.getCounterpart().getResourcepart());
 387							} else {
 388								highlightInConference(message.getCounterpart().toString());
 389							}
 390						}
 391					} else {
 392						activity.switchToContactDetails(message.getContact());
 393					}
 394				} else {
 395					Account account = message.getConversation().getAccount();
 396					Intent intent = new Intent(activity, EditAccountActivity.class);
 397					intent.putExtra("jid", account.getJid().toBareJid().toString());
 398					startActivity(intent);
 399				}
 400			}
 401		});
 402		messageListAdapter
 403				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 404
 405					@Override
 406					public void onContactPictureLongClicked(Message message) {
 407						if (message.getStatus() <= Message.STATUS_RECEIVED) {
 408							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 409								if (message.getCounterpart() != null) {
 410									privateMessageWith(message.getCounterpart());
 411								}
 412							}
 413						} else {
 414							activity.showQrCode();
 415						}
 416					}
 417				});
 418		messagesView.setAdapter(messageListAdapter);
 419
 420		registerForContextMenu(messagesView);
 421
 422		return view;
 423	}
 424
 425	@Override
 426	public void onCreateContextMenu(ContextMenu menu, View v,
 427									ContextMenuInfo menuInfo) {
 428		synchronized (this.messageList) {
 429			super.onCreateContextMenu(menu, v, menuInfo);
 430			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 431			this.selectedMessage = this.messageList.get(acmi.position);
 432			populateContextMenu(menu);
 433		}
 434	}
 435
 436	private void populateContextMenu(ContextMenu menu) {
 437		final Message m = this.selectedMessage;
 438		if (m.getType() != Message.TYPE_STATUS) {
 439			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 440			menu.setHeaderTitle(R.string.message_options);
 441			MenuItem copyText = menu.findItem(R.id.copy_text);
 442			MenuItem shareWith = menu.findItem(R.id.share_with);
 443			MenuItem sendAgain = menu.findItem(R.id.send_again);
 444			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 445			MenuItem downloadFile = menu.findItem(R.id.download_file);
 446			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 447			if ((m.getType() == Message.TYPE_TEXT || m.getType() == Message.TYPE_PRIVATE)
 448					&& m.getTransferable() == null
 449					&& !GeoHelper.isGeoUri(m.getBody())
 450					&& m.treatAsDownloadable() != Message.Decision.MUST) {
 451				copyText.setVisible(true);
 452			}
 453			if ((m.getType() != Message.TYPE_TEXT
 454					&& m.getType() != Message.TYPE_PRIVATE
 455					&& m.getTransferable() == null)
 456					|| (GeoHelper.isGeoUri(m.getBody()))) {
 457				shareWith.setVisible(true);
 458			}
 459			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
 460				sendAgain.setVisible(true);
 461			}
 462			if (m.hasFileOnRemoteHost()
 463					|| GeoHelper.isGeoUri(m.getBody())
 464					|| m.treatAsDownloadable() == Message.Decision.MUST) {
 465				copyUrl.setVisible(true);
 466			}
 467			if (m.getType() == Message.TYPE_TEXT && m.getTransferable() == null && m.treatAsDownloadable() != Message.Decision.NEVER) {
 468				downloadFile.setVisible(true);
 469				downloadFile.setTitle(activity.getString(R.string.download_x_file,UIHelper.getFileDescriptionString(activity, m)));
 470			}
 471			if ((m.getTransferable() != null && !(m.getTransferable() instanceof TransferablePlaceholder))
 472					|| (m.isFileOrImage() && (m.getStatus() == Message.STATUS_WAITING
 473					|| m.getStatus() == Message.STATUS_OFFERED))) {
 474				cancelTransmission.setVisible(true);
 475			}
 476		}
 477	}
 478
 479	@Override
 480	public boolean onContextItemSelected(MenuItem item) {
 481		switch (item.getItemId()) {
 482			case R.id.share_with:
 483				shareWith(selectedMessage);
 484				return true;
 485			case R.id.copy_text:
 486				copyText(selectedMessage);
 487				return true;
 488			case R.id.send_again:
 489				resendMessage(selectedMessage);
 490				return true;
 491			case R.id.copy_url:
 492				copyUrl(selectedMessage);
 493				return true;
 494			case R.id.download_file:
 495				downloadFile(selectedMessage);
 496				return true;
 497			case R.id.cancel_transmission:
 498				cancelTransmission(selectedMessage);
 499				return true;
 500			default:
 501				return super.onContextItemSelected(item);
 502		}
 503	}
 504
 505	private void shareWith(Message message) {
 506		Intent shareIntent = new Intent();
 507		shareIntent.setAction(Intent.ACTION_SEND);
 508		if (GeoHelper.isGeoUri(message.getBody())) {
 509			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 510			shareIntent.setType("text/plain");
 511		} else {
 512			shareIntent.putExtra(Intent.EXTRA_STREAM,
 513					activity.xmppConnectionService.getFileBackend()
 514							.getJingleFileUri(message));
 515			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 516			String mime = message.getMimeType();
 517			if (mime == null) {
 518				mime = "image/webp";
 519			}
 520			shareIntent.setType(mime);
 521		}
 522		try {
 523			activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
 524		} catch (ActivityNotFoundException e) {
 525			//This should happen only on faulty androids because normally chooser is always available
 526			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
 527		}
 528	}
 529
 530	private void copyText(Message message) {
 531		if (activity.copyTextToClipboard(message.getMergedBody(),
 532				R.string.message_text)) {
 533			Toast.makeText(activity, R.string.message_copied_to_clipboard,
 534					Toast.LENGTH_SHORT).show();
 535		}
 536	}
 537
 538	private void resendMessage(Message message) {
 539		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 540			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 541			if (!file.exists()) {
 542				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 543				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 544				return;
 545			}
 546		}
 547		activity.xmppConnectionService.resendFailedMessages(message);
 548	}
 549
 550	private void copyUrl(Message message) {
 551		final String url;
 552		final int resId;
 553		if (GeoHelper.isGeoUri(message.getBody())) {
 554			resId = R.string.location;
 555			url = message.getBody();
 556		} else if (message.hasFileOnRemoteHost()) {
 557			resId = R.string.file_url;
 558			url = message.getFileParams().url.toString();
 559		} else {
 560			url = message.getBody().trim();
 561			resId = R.string.file_url;
 562		}
 563		if (activity.copyTextToClipboard(url, resId)) {
 564			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 565					Toast.LENGTH_SHORT).show();
 566		}
 567	}
 568
 569	private void downloadFile(Message message) {
 570		activity.xmppConnectionService.getHttpConnectionManager()
 571				.createNewDownloadConnection(message);
 572	}
 573
 574	private void cancelTransmission(Message message) {
 575		Transferable transferable = message.getTransferable();
 576		if (transferable != null) {
 577			transferable.cancel();
 578		} else {
 579			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
 580		}
 581	}
 582
 583	protected void privateMessageWith(final Jid counterpart) {
 584		this.mEditMessage.setText("");
 585		this.conversation.setNextCounterpart(counterpart);
 586		updateChatMsgHint();
 587		updateSendButton();
 588	}
 589
 590	protected void highlightInConference(String nick) {
 591		String oldString = mEditMessage.getText().toString().trim();
 592		if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
 593			mEditMessage.getText().insert(0, nick + ": ");
 594		} else {
 595			if (mEditMessage.getText().charAt(
 596					mEditMessage.getSelectionStart() - 1) != ' ') {
 597				nick = " " + nick;
 598			}
 599			mEditMessage.getText().insert(mEditMessage.getSelectionStart(),
 600					nick + " ");
 601		}
 602	}
 603
 604	@Override
 605	public void onStop() {
 606		mDecryptJobRunning = false;
 607		super.onStop();
 608		if (this.conversation != null) {
 609			final String msg = mEditMessage.getText().toString();
 610			this.conversation.setNextMessage(msg);
 611			updateChatState(this.conversation, msg);
 612		}
 613	}
 614
 615	private void updateChatState(final Conversation conversation, final String msg) {
 616		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 617		Account.State status = conversation.getAccount().getStatus();
 618		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 619			activity.xmppConnectionService.sendChatState(conversation);
 620		}
 621	}
 622
 623	public void reInit(Conversation conversation) {
 624		if (conversation == null) {
 625			return;
 626		}
 627
 628		this.activity = (ConversationActivity) getActivity();
 629
 630		if (this.conversation != null) {
 631			final String msg = mEditMessage.getText().toString();
 632			this.conversation.setNextMessage(msg);
 633			if (this.conversation != conversation) {
 634				updateChatState(this.conversation, msg);
 635			}
 636			this.conversation.trim();
 637		}
 638
 639		this.askForPassphraseIntent = null;
 640		this.conversation = conversation;
 641		this.mDecryptJobRunning = false;
 642		this.mEncryptedMessages.clear();
 643		if (this.conversation.getMode() == Conversation.MODE_MULTI) {
 644			this.conversation.setNextCounterpart(null);
 645		}
 646		this.mEditMessage.setKeyboardListener(null);
 647		this.mEditMessage.setText("");
 648		this.mEditMessage.append(this.conversation.getNextMessage());
 649		this.mEditMessage.setKeyboardListener(this);
 650		this.messagesView.setAdapter(messageListAdapter);
 651		updateMessages();
 652		this.messagesLoaded = true;
 653		int size = this.messageList.size();
 654		if (size > 0) {
 655			messagesView.setSelection(size - 1);
 656		}
 657	}
 658
 659	private OnClickListener mUnblockClickListener = new OnClickListener() {
 660		@Override
 661		public void onClick(final View v) {
 662			v.post(new Runnable() {
 663				@Override
 664				public void run() {
 665					v.setVisibility(View.INVISIBLE);
 666				}
 667			});
 668			if (conversation.isDomainBlocked()) {
 669				BlockContactDialog.show(activity, activity.xmppConnectionService, conversation);
 670			} else {
 671				activity.unblockConversation(conversation);
 672			}
 673		}
 674	};
 675
 676	private OnClickListener mAddBackClickListener = new OnClickListener() {
 677
 678		@Override
 679		public void onClick(View v) {
 680			final Contact contact = conversation == null ? null : conversation.getContact();
 681			if (contact != null) {
 682				activity.xmppConnectionService.createContact(contact);
 683				activity.switchToContactDetails(contact);
 684			}
 685		}
 686	};
 687
 688	private OnClickListener mUnmuteClickListener = new OnClickListener() {
 689
 690		@Override
 691		public void onClick(final View v) {
 692			activity.unmuteConversation(conversation);
 693		}
 694	};
 695
 696	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
 697		@Override
 698		public void onClick(View view) {
 699			Intent intent = new Intent(activity, VerifyOTRActivity.class);
 700			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 701			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 702			intent.putExtra("account", conversation.getAccount().getJid().toBareJid().toString());
 703			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
 704			startActivity(intent);
 705		}
 706	};
 707
 708	private void updateSnackBar(final Conversation conversation) {
 709		final Account account = conversation.getAccount();
 710		final Contact contact = conversation.getContact();
 711		final int mode = conversation.getMode();
 712		if (conversation.isBlocked()) {
 713			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
 714		} else if (!contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 715			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener);
 716		} else if (mode == Conversation.MODE_MULTI
 717				&& !conversation.getMucOptions().online()
 718				&& account.getStatus() == Account.State.ONLINE) {
 719			switch (conversation.getMucOptions().getError()) {
 720				case MucOptions.ERROR_NICK_IN_USE:
 721					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
 722					break;
 723				case MucOptions.ERROR_UNKNOWN:
 724					showSnackbar(R.string.conference_not_found, R.string.leave, leaveMuc);
 725					break;
 726				case MucOptions.ERROR_PASSWORD_REQUIRED:
 727					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 728					break;
 729				case MucOptions.ERROR_BANNED:
 730					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
 731					break;
 732				case MucOptions.ERROR_MEMBERS_ONLY:
 733					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
 734					break;
 735				case MucOptions.KICKED_FROM_ROOM:
 736					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
 737					break;
 738				default:
 739					break;
 740			}
 741		} else if (askForPassphraseIntent != null) {
 742			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
 743		} else if (mode == Conversation.MODE_SINGLE
 744				&& conversation.smpRequested()) {
 745			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
 746		} else if (mode == Conversation.MODE_SINGLE
 747				&& conversation.hasValidOtrSession()
 748				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
 749				&& (!conversation.isOtrFingerprintVerified())) {
 750			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
 751		} else if (conversation.isMuted()) {
 752			showSnackbar(R.string.notifications_disabled, R.string.enable, this.mUnmuteClickListener);
 753		} else {
 754			hideSnackbar();
 755		}
 756	}
 757
 758	public void updateMessages() {
 759		synchronized (this.messageList) {
 760			if (getView() == null) {
 761				return;
 762			}
 763			final ConversationActivity activity = (ConversationActivity) getActivity();
 764			if (this.conversation != null) {
 765				updateSnackBar(this.conversation);
 766				conversation.populateWithMessages(ConversationFragment.this.messageList);
 767				for (final Message message : this.messageList) {
 768					if (message.getEncryption() == Message.ENCRYPTION_PGP
 769							&& (message.getStatus() == Message.STATUS_RECEIVED || message
 770							.getStatus() >= Message.STATUS_SEND)
 771							&& message.getTransferable() == null) {
 772						if (!mEncryptedMessages.contains(message)) {
 773							mEncryptedMessages.add(message);
 774						}
 775					}
 776				}
 777				decryptNext();
 778				updateStatusMessages();
 779				this.messageListAdapter.notifyDataSetChanged();
 780				updateChatMsgHint();
 781				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
 782					activity.sendReadMarkerIfNecessary(conversation);
 783				}
 784				this.updateSendButton();
 785			}
 786		}
 787	}
 788
 789	private void decryptNext() {
 790		Message next = this.mEncryptedMessages.peek();
 791		PgpEngine engine = activity.xmppConnectionService.getPgpEngine();
 792
 793		if (next != null && engine != null && !mDecryptJobRunning) {
 794			mDecryptJobRunning = true;
 795			engine.decrypt(next, new UiCallback<Message>() {
 796
 797				@Override
 798				public void userInputRequried(PendingIntent pi, Message message) {
 799					mDecryptJobRunning = false;
 800					askForPassphraseIntent = pi.getIntentSender();
 801					updateSnackBar(conversation);
 802				}
 803
 804				@Override
 805				public void success(Message message) {
 806					mDecryptJobRunning = false;
 807					try {
 808						mEncryptedMessages.remove();
 809					} catch (final NoSuchElementException ignored) {
 810
 811					}
 812					askForPassphraseIntent = null;
 813					activity.xmppConnectionService.updateMessage(message);
 814				}
 815
 816				@Override
 817				public void error(int error, Message message) {
 818					message.setEncryption(Message.ENCRYPTION_DECRYPTION_FAILED);
 819					mDecryptJobRunning = false;
 820					try {
 821						mEncryptedMessages.remove();
 822					} catch (final NoSuchElementException ignored) {
 823
 824					}
 825					activity.xmppConnectionService.updateConversationUi();
 826				}
 827			});
 828		}
 829	}
 830
 831	private void messageSent() {
 832		int size = this.messageList.size();
 833		messagesView.setSelection(size - 1);
 834		mEditMessage.setText("");
 835		updateChatMsgHint();
 836	}
 837
 838	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE}
 839
 840	private int getSendButtonImageResource(SendButtonAction action, int status) {
 841		switch (action) {
 842			case TEXT:
 843				switch (status) {
 844					case Presences.CHAT:
 845					case Presences.ONLINE:
 846						return R.drawable.ic_send_text_online;
 847					case Presences.AWAY:
 848						return R.drawable.ic_send_text_away;
 849					case Presences.XA:
 850					case Presences.DND:
 851						return R.drawable.ic_send_text_dnd;
 852					default:
 853						return R.drawable.ic_send_text_offline;
 854				}
 855			case TAKE_PHOTO:
 856				switch (status) {
 857					case Presences.CHAT:
 858					case Presences.ONLINE:
 859						return R.drawable.ic_send_photo_online;
 860					case Presences.AWAY:
 861						return R.drawable.ic_send_photo_away;
 862					case Presences.XA:
 863					case Presences.DND:
 864						return R.drawable.ic_send_photo_dnd;
 865					default:
 866						return R.drawable.ic_send_photo_offline;
 867				}
 868			case RECORD_VOICE:
 869				switch (status) {
 870					case Presences.CHAT:
 871					case Presences.ONLINE:
 872						return R.drawable.ic_send_voice_online;
 873					case Presences.AWAY:
 874						return R.drawable.ic_send_voice_away;
 875					case Presences.XA:
 876					case Presences.DND:
 877						return R.drawable.ic_send_voice_dnd;
 878					default:
 879						return R.drawable.ic_send_voice_offline;
 880				}
 881			case SEND_LOCATION:
 882				switch (status) {
 883					case Presences.CHAT:
 884					case Presences.ONLINE:
 885						return R.drawable.ic_send_location_online;
 886					case Presences.AWAY:
 887						return R.drawable.ic_send_location_away;
 888					case Presences.XA:
 889					case Presences.DND:
 890						return R.drawable.ic_send_location_dnd;
 891					default:
 892						return R.drawable.ic_send_location_offline;
 893				}
 894			case CANCEL:
 895				switch (status) {
 896					case Presences.CHAT:
 897					case Presences.ONLINE:
 898						return R.drawable.ic_send_cancel_online;
 899					case Presences.AWAY:
 900						return R.drawable.ic_send_cancel_away;
 901					case Presences.XA:
 902					case Presences.DND:
 903						return R.drawable.ic_send_cancel_dnd;
 904					default:
 905						return R.drawable.ic_send_cancel_offline;
 906				}
 907			case CHOOSE_PICTURE:
 908				switch (status) {
 909					case Presences.CHAT:
 910					case Presences.ONLINE:
 911						return R.drawable.ic_send_picture_online;
 912					case Presences.AWAY:
 913						return R.drawable.ic_send_picture_away;
 914					case Presences.XA:
 915					case Presences.DND:
 916						return R.drawable.ic_send_picture_dnd;
 917					default:
 918						return R.drawable.ic_send_picture_offline;
 919				}
 920		}
 921		return R.drawable.ic_send_text_offline;
 922	}
 923
 924	public void updateSendButton() {
 925		final Conversation c = this.conversation;
 926		final SendButtonAction action;
 927		final int status;
 928		final boolean empty = this.mEditMessage == null || this.mEditMessage.getText().length() == 0;
 929		final boolean conference = c.getMode() == Conversation.MODE_MULTI;
 930		if (conference && !c.getAccount().httpUploadAvailable()) {
 931			if (empty && c.getNextCounterpart() != null) {
 932				action = SendButtonAction.CANCEL;
 933			} else {
 934				action = SendButtonAction.TEXT;
 935			}
 936		} else {
 937			if (empty) {
 938				if (conference && c.getNextCounterpart() != null) {
 939					action = SendButtonAction.CANCEL;
 940				} else {
 941					String setting = activity.getPreferences().getString("quick_action", "recent");
 942					if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
 943						setting = "location";
 944					} else if (setting.equals("recent")) {
 945						setting = activity.getPreferences().getString("recently_used_quick_action", "text");
 946					}
 947					switch (setting) {
 948						case "photo":
 949							action = SendButtonAction.TAKE_PHOTO;
 950							break;
 951						case "location":
 952							action = SendButtonAction.SEND_LOCATION;
 953							break;
 954						case "voice":
 955							action = SendButtonAction.RECORD_VOICE;
 956							break;
 957						case "picture":
 958							action = SendButtonAction.CHOOSE_PICTURE;
 959							break;
 960						default:
 961							action = SendButtonAction.TEXT;
 962							break;
 963					}
 964				}
 965			} else {
 966				action = SendButtonAction.TEXT;
 967			}
 968		}
 969		if (activity.useSendButtonToIndicateStatus() && c != null
 970				&& c.getAccount().getStatus() == Account.State.ONLINE) {
 971			if (c.getMode() == Conversation.MODE_SINGLE) {
 972				status = c.getContact().getMostAvailableStatus();
 973			} else {
 974				status = c.getMucOptions().online() ? Presences.ONLINE : Presences.OFFLINE;
 975			}
 976		} else {
 977			status = Presences.OFFLINE;
 978		}
 979		this.mSendButton.setTag(action);
 980		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
 981	}
 982
 983	protected void updateStatusMessages() {
 984		synchronized (this.messageList) {
 985			if (conversation.getMode() == Conversation.MODE_SINGLE) {
 986				ChatState state = conversation.getIncomingChatState();
 987				if (state == ChatState.COMPOSING) {
 988					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
 989				} else if (state == ChatState.PAUSED) {
 990					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
 991				} else {
 992					for (int i = this.messageList.size() - 1; i >= 0; --i) {
 993						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
 994							return;
 995						} else {
 996							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
 997								this.messageList.add(i + 1,
 998										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
 999								return;
1000							}
1001						}
1002					}
1003				}
1004			}
1005		}
1006	}
1007
1008	protected void showSnackbar(final int message, final int action,
1009								final OnClickListener clickListener) {
1010		snackbar.setVisibility(View.VISIBLE);
1011		snackbar.setOnClickListener(null);
1012		snackbarMessage.setText(message);
1013		snackbarMessage.setOnClickListener(null);
1014		snackbarAction.setVisibility(View.VISIBLE);
1015		snackbarAction.setText(action);
1016		snackbarAction.setOnClickListener(clickListener);
1017	}
1018
1019	protected void hideSnackbar() {
1020		snackbar.setVisibility(View.GONE);
1021	}
1022
1023	protected void sendPlainTextMessage(Message message) {
1024		ConversationActivity activity = (ConversationActivity) getActivity();
1025		activity.xmppConnectionService.sendMessage(message);
1026		messageSent();
1027	}
1028
1029	protected void sendPgpMessage(final Message message) {
1030		final ConversationActivity activity = (ConversationActivity) getActivity();
1031		final XmppConnectionService xmppService = activity.xmppConnectionService;
1032		final Contact contact = message.getConversation().getContact();
1033		if (activity.hasPgp()) {
1034			if (conversation.getMode() == Conversation.MODE_SINGLE) {
1035				if (contact.getPgpKeyId() != 0) {
1036					xmppService.getPgpEngine().hasKey(contact,
1037							new UiCallback<Contact>() {
1038
1039								@Override
1040								public void userInputRequried(PendingIntent pi,
1041															  Contact contact) {
1042									activity.runIntent(
1043											pi,
1044											ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
1045								}
1046
1047								@Override
1048								public void success(Contact contact) {
1049									messageSent();
1050									activity.encryptTextMessage(message);
1051								}
1052
1053								@Override
1054								public void error(int error, Contact contact) {
1055
1056								}
1057							});
1058
1059				} else {
1060					showNoPGPKeyDialog(false,
1061							new DialogInterface.OnClickListener() {
1062
1063								@Override
1064								public void onClick(DialogInterface dialog,
1065													int which) {
1066									conversation
1067											.setNextEncryption(Message.ENCRYPTION_NONE);
1068									xmppService.databaseBackend
1069											.updateConversation(conversation);
1070									message.setEncryption(Message.ENCRYPTION_NONE);
1071									xmppService.sendMessage(message);
1072									messageSent();
1073								}
1074							});
1075				}
1076			} else {
1077				if (conversation.getMucOptions().pgpKeysInUse()) {
1078					if (!conversation.getMucOptions().everybodyHasKeys()) {
1079						Toast warning = Toast
1080								.makeText(getActivity(),
1081										R.string.missing_public_keys,
1082										Toast.LENGTH_LONG);
1083						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1084						warning.show();
1085					}
1086					activity.encryptTextMessage(message);
1087					messageSent();
1088				} else {
1089					showNoPGPKeyDialog(true,
1090							new DialogInterface.OnClickListener() {
1091
1092								@Override
1093								public void onClick(DialogInterface dialog,
1094													int which) {
1095									conversation
1096											.setNextEncryption(Message.ENCRYPTION_NONE);
1097									message.setEncryption(Message.ENCRYPTION_NONE);
1098									xmppService.databaseBackend
1099											.updateConversation(conversation);
1100									xmppService.sendMessage(message);
1101									messageSent();
1102								}
1103							});
1104				}
1105			}
1106		} else {
1107			activity.showInstallPgpDialog();
1108		}
1109	}
1110
1111	public void showNoPGPKeyDialog(boolean plural,
1112								   DialogInterface.OnClickListener listener) {
1113		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1114		builder.setIconAttribute(android.R.attr.alertDialogIcon);
1115		if (plural) {
1116			builder.setTitle(getString(R.string.no_pgp_keys));
1117			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
1118		} else {
1119			builder.setTitle(getString(R.string.no_pgp_key));
1120			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
1121		}
1122		builder.setNegativeButton(getString(R.string.cancel), null);
1123		builder.setPositiveButton(getString(R.string.send_unencrypted),
1124				listener);
1125		builder.create().show();
1126	}
1127
1128	protected void sendAxolotlMessage(final Message message) {
1129		final ConversationActivity activity = (ConversationActivity) getActivity();
1130		final XmppConnectionService xmppService = activity.xmppConnectionService;
1131		//message.setCounterpart(conversation.getNextCounterpart());
1132		xmppService.sendMessage(message);
1133		messageSent();
1134	}
1135
1136	protected void sendOtrMessage(final Message message) {
1137		final ConversationActivity activity = (ConversationActivity) getActivity();
1138		final XmppConnectionService xmppService = activity.xmppConnectionService;
1139		activity.selectPresence(message.getConversation(),
1140				new OnPresenceSelected() {
1141
1142					@Override
1143					public void onPresenceSelected() {
1144						message.setCounterpart(conversation.getNextCounterpart());
1145						xmppService.sendMessage(message);
1146						messageSent();
1147					}
1148				});
1149	}
1150
1151	public void appendText(String text) {
1152		if (text == null) {
1153			return;
1154		}
1155		String previous = this.mEditMessage.getText().toString();
1156		if (previous.length() != 0 && !previous.endsWith(" ")) {
1157			text = " " + text;
1158		}
1159		this.mEditMessage.append(text);
1160	}
1161
1162	@Override
1163	public boolean onEnterPressed() {
1164		if (activity.enterIsSend()) {
1165			sendMessage();
1166			return true;
1167		} else {
1168			return false;
1169		}
1170	}
1171
1172	@Override
1173	public void onTypingStarted() {
1174		Account.State status = conversation.getAccount().getStatus();
1175		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1176			activity.xmppConnectionService.sendChatState(conversation);
1177		}
1178		updateSendButton();
1179	}
1180
1181	@Override
1182	public void onTypingStopped() {
1183		Account.State status = conversation.getAccount().getStatus();
1184		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1185			activity.xmppConnectionService.sendChatState(conversation);
1186		}
1187	}
1188
1189	@Override
1190	public void onTextDeleted() {
1191		Account.State status = conversation.getAccount().getStatus();
1192		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1193			activity.xmppConnectionService.sendChatState(conversation);
1194		}
1195		updateSendButton();
1196	}
1197
1198}