ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.app.Activity;
   4import android.app.AlertDialog;
   5import android.app.Fragment;
   6import android.app.PendingIntent;
   7import android.content.ActivityNotFoundException;
   8import android.content.Context;
   9import android.content.DialogInterface;
  10import android.content.Intent;
  11import android.content.IntentSender.SendIntentException;
  12import android.os.Bundle;
  13import android.os.Handler;
  14import android.text.InputType;
  15import android.util.Log;
  16import android.util.Pair;
  17import android.view.ContextMenu;
  18import android.view.ContextMenu.ContextMenuInfo;
  19import android.view.Gravity;
  20import android.view.KeyEvent;
  21import android.view.LayoutInflater;
  22import android.view.MenuItem;
  23import android.view.View;
  24import android.view.View.OnClickListener;
  25import android.view.ViewGroup;
  26import android.view.inputmethod.EditorInfo;
  27import android.view.inputmethod.InputMethodManager;
  28import android.widget.AbsListView;
  29import android.widget.AbsListView.OnScrollListener;
  30import android.widget.AdapterView;
  31import android.widget.AdapterView.AdapterContextMenuInfo;
  32import android.widget.ImageButton;
  33import android.widget.ListView;
  34import android.widget.RelativeLayout;
  35import android.widget.TextView;
  36import android.widget.TextView.OnEditorActionListener;
  37import android.widget.Toast;
  38
  39import net.java.otr4j.session.SessionStatus;
  40
  41import java.util.ArrayList;
  42import java.util.Collections;
  43import java.util.List;
  44import java.util.UUID;
  45
  46import eu.siacs.conversations.Config;
  47import eu.siacs.conversations.R;
  48import eu.siacs.conversations.entities.Account;
  49import eu.siacs.conversations.entities.Contact;
  50import eu.siacs.conversations.entities.Conversation;
  51import eu.siacs.conversations.entities.DownloadableFile;
  52import eu.siacs.conversations.entities.Message;
  53import eu.siacs.conversations.entities.MucOptions;
  54import eu.siacs.conversations.entities.Presence;
  55import eu.siacs.conversations.entities.Transferable;
  56import eu.siacs.conversations.entities.TransferablePlaceholder;
  57import eu.siacs.conversations.http.HttpDownloadConnection;
  58import eu.siacs.conversations.services.MessageArchiveService;
  59import eu.siacs.conversations.services.XmppConnectionService;
  60import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
  61import eu.siacs.conversations.ui.XmppActivity.OnValueEdited;
  62import eu.siacs.conversations.ui.adapter.MessageAdapter;
  63import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked;
  64import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
  65import eu.siacs.conversations.ui.widget.ListSelectionManager;
  66import eu.siacs.conversations.utils.GeoHelper;
  67import eu.siacs.conversations.utils.UIHelper;
  68import eu.siacs.conversations.xmpp.XmppConnection;
  69import eu.siacs.conversations.xmpp.chatstate.ChatState;
  70import eu.siacs.conversations.xmpp.jid.Jid;
  71
  72public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  73
  74	protected Conversation conversation;
  75	private OnClickListener leaveMuc = new OnClickListener() {
  76
  77		@Override
  78		public void onClick(View v) {
  79			activity.endConversation(conversation);
  80		}
  81	};
  82	private OnClickListener joinMuc = new OnClickListener() {
  83
  84		@Override
  85		public void onClick(View v) {
  86			activity.xmppConnectionService.joinMuc(conversation);
  87		}
  88	};
  89	private OnClickListener enterPassword = new OnClickListener() {
  90
  91		@Override
  92		public void onClick(View v) {
  93			MucOptions muc = conversation.getMucOptions();
  94			String password = muc.getPassword();
  95			if (password == null) {
  96				password = "";
  97			}
  98			activity.quickPasswordEdit(password, new OnValueEdited() {
  99
 100				@Override
 101				public void onValueEdited(String value) {
 102					activity.xmppConnectionService.providePasswordForMuc(
 103							conversation, value);
 104				}
 105			});
 106		}
 107	};
 108	protected ListView messagesView;
 109	final protected List<Message> messageList = new ArrayList<>();
 110	protected MessageAdapter messageListAdapter;
 111	private EditMessage mEditMessage;
 112	private ImageButton mSendButton;
 113	private RelativeLayout snackbar;
 114	private TextView snackbarMessage;
 115	private TextView snackbarAction;
 116	private boolean messagesLoaded = true;
 117	private Toast messageLoaderToast;
 118
 119	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 120
 121		@Override
 122		public void onScrollStateChanged(AbsListView view, int scrollState) {
 123			// TODO Auto-generated method stub
 124
 125		}
 126
 127		@Override
 128		public void onScroll(AbsListView view, int firstVisibleItem,
 129							 int visibleItemCount, int totalItemCount) {
 130			synchronized (ConversationFragment.this.messageList) {
 131				if (firstVisibleItem < 5 && messagesLoaded && messageList.size() > 0) {
 132					long timestamp;
 133					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 134						timestamp = messageList.get(1).getTimeSent();
 135					} else {
 136						timestamp = messageList.get(0).getTimeSent();
 137					}
 138					messagesLoaded = false;
 139					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 140						@Override
 141						public void onMoreMessagesLoaded(final int c, Conversation conversation) {
 142							if (ConversationFragment.this.conversation != conversation) {
 143								return;
 144							}
 145							activity.runOnUiThread(new Runnable() {
 146								@Override
 147								public void run() {
 148									final int oldPosition = messagesView.getFirstVisiblePosition();
 149									final Message message;
 150									if (oldPosition < messageList.size()) {
 151										message = messageList.get(oldPosition);
 152									}  else {
 153										message = null;
 154									}
 155									String uuid = message != null ? message.getUuid() : null;
 156									View v = messagesView.getChildAt(0);
 157									final int pxOffset = (v == null) ? 0 : v.getTop();
 158									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 159									try {
 160										updateStatusMessages();
 161									} catch (IllegalStateException e) {
 162										Log.d(Config.LOGTAG,"caught illegal state exception while updating status messages");
 163									}
 164									messageListAdapter.notifyDataSetChanged();
 165									int pos = Math.max(getIndexOf(uuid,messageList),0);
 166									messagesView.setSelectionFromTop(pos, pxOffset);
 167									messagesLoaded = true;
 168									if (messageLoaderToast != null) {
 169										messageLoaderToast.cancel();
 170									}
 171								}
 172							});
 173						}
 174
 175						@Override
 176						public void informUser(final int resId) {
 177
 178							activity.runOnUiThread(new Runnable() {
 179								@Override
 180								public void run() {
 181									if (messageLoaderToast != null) {
 182										messageLoaderToast.cancel();
 183									}
 184									if (ConversationFragment.this.conversation != conversation) {
 185										return;
 186									}
 187									messageLoaderToast = Toast.makeText(activity, resId, Toast.LENGTH_LONG);
 188									messageLoaderToast.show();
 189								}
 190							});
 191
 192						}
 193					});
 194
 195				}
 196			}
 197		}
 198	};
 199
 200	private int getIndexOf(String uuid, List<Message> messages) {
 201		if (uuid == null) {
 202			return messages.size() - 1;
 203		}
 204		for(int i = 0; i < messages.size(); ++i) {
 205			if (uuid.equals(messages.get(i).getUuid())) {
 206				return i;
 207			} else {
 208				Message next = messages.get(i);
 209				while(next != null && next.wasMergedIntoPrevious()) {
 210					if (uuid.equals(next.getUuid())) {
 211						return i;
 212					}
 213					next = next.next();
 214				}
 215
 216			}
 217		}
 218		return -1;
 219	}
 220
 221	public Pair<Integer,Integer> getScrollPosition() {
 222		if (this.messagesView.getCount() == 0 ||
 223				this.messagesView.getLastVisiblePosition() == this.messagesView.getCount() - 1) {
 224			return null;
 225		} else {
 226			final int pos = messagesView.getFirstVisiblePosition();
 227			final View view = messagesView.getChildAt(0);
 228			if (view == null) {
 229				return null;
 230			} else {
 231				return new Pair<>(pos, view.getTop());
 232			}
 233		}
 234	}
 235
 236	public void setScrollPosition(Pair<Integer,Integer> scrollPosition) {
 237		if (scrollPosition != null) {
 238			this.messagesView.setSelectionFromTop(scrollPosition.first, scrollPosition.second);
 239		}
 240	}
 241
 242	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 243
 244		@Override
 245		public void onClick(View v) {
 246			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 247			if (pendingIntent != null) {
 248				try {
 249					activity.startIntentSenderForResult(pendingIntent.getIntentSender(),
 250                            ConversationActivity.REQUEST_DECRYPT_PGP,
 251                            null,
 252                            0,
 253                            0,
 254                            0);
 255				} catch (SendIntentException e) {
 256					Toast.makeText(activity,R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 257					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 258				}
 259			}
 260			updateSnackBar(conversation);
 261		}
 262	};
 263	protected OnClickListener clickToVerify = new OnClickListener() {
 264
 265		@Override
 266		public void onClick(View v) {
 267			activity.verifyOtrSessionDialog(conversation, v);
 268		}
 269	};
 270	private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
 271
 272		@Override
 273		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 274			if (actionId == EditorInfo.IME_ACTION_SEND) {
 275				InputMethodManager imm = (InputMethodManager) v.getContext()
 276						.getSystemService(Context.INPUT_METHOD_SERVICE);
 277				if (imm.isFullscreenMode()) {
 278					imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 279				}
 280				sendMessage();
 281				return true;
 282			} else {
 283				return false;
 284			}
 285		}
 286	};
 287	private OnClickListener mSendButtonListener = new OnClickListener() {
 288
 289		@Override
 290		public void onClick(View v) {
 291			Object tag = v.getTag();
 292			if (tag instanceof SendButtonAction) {
 293				SendButtonAction action = (SendButtonAction) tag;
 294				switch (action) {
 295					case TAKE_PHOTO:
 296						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_TAKE_PHOTO);
 297						break;
 298					case SEND_LOCATION:
 299						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_LOCATION);
 300						break;
 301					case RECORD_VOICE:
 302						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
 303						break;
 304					case CHOOSE_PICTURE:
 305						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 306						break;
 307					case CANCEL:
 308						if (conversation != null) {
 309							if (conversation.getCorrectingMessage() != null) {
 310								conversation.setCorrectingMessage(null);
 311								mEditMessage.getEditableText().clear();
 312							}
 313							if (conversation.getMode() == Conversation.MODE_MULTI) {
 314								conversation.setNextCounterpart(null);
 315							}
 316							updateChatMsgHint();
 317							updateSendButton();
 318						}
 319						break;
 320					default:
 321						sendMessage();
 322				}
 323			} else {
 324				sendMessage();
 325			}
 326		}
 327	};
 328	private OnClickListener clickToMuc = new OnClickListener() {
 329
 330		@Override
 331		public void onClick(View v) {
 332			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 333			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 334			intent.putExtra("uuid", conversation.getUuid());
 335			startActivity(intent);
 336		}
 337	};
 338	private ConversationActivity activity;
 339	private Message selectedMessage;
 340
 341	public void setMessagesLoaded() {
 342		this.messagesLoaded = true;
 343	}
 344
 345	private void sendMessage() {
 346		final String body = mEditMessage.getText().toString();
 347		if (body.length() == 0 || this.conversation == null) {
 348			return;
 349		}
 350		final Message message;
 351		if (conversation.getCorrectingMessage() == null) {
 352			message = new Message(conversation, body, conversation.getNextEncryption());
 353			if (conversation.getMode() == Conversation.MODE_MULTI) {
 354				if (conversation.getNextCounterpart() != null) {
 355					message.setCounterpart(conversation.getNextCounterpart());
 356					message.setType(Message.TYPE_PRIVATE);
 357				}
 358			}
 359		} else {
 360			message = conversation.getCorrectingMessage();
 361			message.setBody(body);
 362			message.setEdited(message.getUuid());
 363			message.setUuid(UUID.randomUUID().toString());
 364			conversation.setCorrectingMessage(null);
 365		}
 366		switch (conversation.getNextEncryption()) {
 367			case Message.ENCRYPTION_OTR:
 368				sendOtrMessage(message);
 369				break;
 370			case Message.ENCRYPTION_PGP:
 371				sendPgpMessage(message);
 372				break;
 373			case Message.ENCRYPTION_AXOLOTL:
 374				if(!activity.trustKeysIfNeeded(ConversationActivity.REQUEST_TRUST_KEYS_TEXT)) {
 375					sendAxolotlMessage(message);
 376				}
 377				break;
 378			default:
 379				sendPlainTextMessage(message);
 380		}
 381	}
 382
 383	public void updateChatMsgHint() {
 384		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 385		if (conversation.getCorrectingMessage() != null) {
 386			this.mEditMessage.setHint(R.string.send_corrected_message);
 387		} else if (multi && conversation.getNextCounterpart() != null) {
 388			this.mEditMessage.setHint(getString(
 389					R.string.send_private_message_to,
 390					conversation.getNextCounterpart().getResourcepart()));
 391		} else if (multi && !conversation.getMucOptions().participating()) {
 392			this.mEditMessage.setHint(R.string.you_are_not_participating);
 393		} else {
 394			this.mEditMessage.setHint(UIHelper.getMessageHint(activity,conversation));
 395			getActivity().invalidateOptionsMenu();
 396		}
 397	}
 398
 399	public void setupIme() {
 400		if (activity == null) {
 401			return;
 402		} else if (activity.usingEnterKey() && activity.enterIsSend()) {
 403			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_FLAG_MULTI_LINE));
 404			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 405		} else if (activity.usingEnterKey()) {
 406			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 407			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 408		} else {
 409			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 410			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 411		}
 412	}
 413
 414	@Override
 415	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 416		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
 417		view.setOnClickListener(null);
 418		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 419		mEditMessage.setOnClickListener(new OnClickListener() {
 420
 421			@Override
 422			public void onClick(View v) {
 423				if (activity != null) {
 424					activity.hideConversationsOverview();
 425				}
 426			}
 427		});
 428		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 429
 430		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 431		mSendButton.setOnClickListener(this.mSendButtonListener);
 432
 433		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 434		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 435		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 436
 437		messagesView = (ListView) view.findViewById(R.id.messages_view);
 438		messagesView.setOnScrollListener(mOnScrollListener);
 439		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 440		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 441		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 442
 443			@Override
 444			public void onContactPictureClicked(Message message) {
 445				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 446					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 447						Jid user = message.getCounterpart();
 448						if (user != null && !user.isBareJid()) {
 449							if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
 450								Toast.makeText(activity,activity.getString(R.string.user_has_left_conference,user.getResourcepart()),Toast.LENGTH_SHORT).show();
 451							}
 452							highlightInConference(user.getResourcepart());
 453						}
 454					} else {
 455						if (!message.getContact().isSelf()) {
 456							String fingerprint;
 457							if (message.getEncryption() == Message.ENCRYPTION_PGP
 458									|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 459								fingerprint = "pgp";
 460							} else {
 461								fingerprint = message.getFingerprint();
 462							}
 463							activity.switchToContactDetails(message.getContact(), fingerprint);
 464						}
 465					}
 466				} else {
 467					Account account = message.getConversation().getAccount();
 468					Intent intent;
 469					if (activity.manuallyChangePresence()) {
 470						intent = new Intent(activity, SetPresenceActivity.class);
 471						intent.putExtra(SetPresenceActivity.EXTRA_ACCOUNT, account.getJid().toBareJid().toString());
 472					} else {
 473						intent = new Intent(activity, EditAccountActivity.class);
 474						intent.putExtra("jid", account.getJid().toBareJid().toString());
 475						String fingerprint;
 476						if (message.getEncryption() == Message.ENCRYPTION_PGP
 477								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 478							fingerprint = "pgp";
 479						} else {
 480							fingerprint = message.getFingerprint();
 481						}
 482						intent.putExtra("fingerprint", fingerprint);
 483					}
 484					startActivity(intent);
 485				}
 486			}
 487		});
 488		messageListAdapter
 489				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 490
 491					@Override
 492					public void onContactPictureLongClicked(Message message) {
 493						if (message.getStatus() <= Message.STATUS_RECEIVED) {
 494							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 495								Jid user = message.getCounterpart();
 496								if (user != null && !user.isBareJid()) {
 497									if (message.getConversation().getMucOptions().isUserInRoom(user)) {
 498										privateMessageWith(user);
 499									} else {
 500										Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
 501									}
 502								}
 503							}
 504						} else {
 505							activity.showQrCode();
 506						}
 507					}
 508				});
 509		messagesView.setAdapter(messageListAdapter);
 510
 511		registerForContextMenu(messagesView);
 512
 513		return view;
 514	}
 515
 516	@Override
 517	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 518		synchronized (this.messageList) {
 519			super.onCreateContextMenu(menu, v, menuInfo);
 520			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 521			this.selectedMessage = this.messageList.get(acmi.position);
 522			populateContextMenu(menu);
 523		}
 524	}
 525
 526	private void populateContextMenu(ContextMenu menu) {
 527		final Message m = this.selectedMessage;
 528		final Transferable t = m.getTransferable();
 529		Message relevantForCorrection = m;
 530		while(relevantForCorrection.mergeable(relevantForCorrection.next())) {
 531			relevantForCorrection = relevantForCorrection.next();
 532		}
 533		if (m.getType() != Message.TYPE_STATUS) {
 534			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
 535					&& m.getType() != Message.TYPE_PRIVATE
 536					&& t == null;
 537			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 538			menu.setHeaderTitle(R.string.message_options);
 539			MenuItem copyText = menu.findItem(R.id.copy_text);
 540			MenuItem selectText = menu.findItem(R.id.select_text);
 541			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
 542			MenuItem correctMessage = menu.findItem(R.id.correct_message);
 543			MenuItem shareWith = menu.findItem(R.id.share_with);
 544			MenuItem sendAgain = menu.findItem(R.id.send_again);
 545			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 546			MenuItem downloadFile = menu.findItem(R.id.download_file);
 547			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 548			MenuItem deleteFile = menu.findItem(R.id.delete_file);
 549			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
 550			if (!treatAsFile
 551					&& !GeoHelper.isGeoUri(m.getBody())
 552					&& m.treatAsDownloadable() != Message.Decision.MUST) {
 553				copyText.setVisible(true);
 554				selectText.setVisible(ListSelectionManager.isSupported());
 555			}
 556			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 557				retryDecryption.setVisible(true);
 558			}
 559			if (relevantForCorrection.getType() == Message.TYPE_TEXT
 560					&& relevantForCorrection.isLastCorrectableMessage()
 561					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
 562				correctMessage.setVisible(true);
 563			}
 564			if (treatAsFile || (GeoHelper.isGeoUri(m.getBody()))) {
 565				shareWith.setVisible(true);
 566			}
 567			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
 568				sendAgain.setVisible(true);
 569			}
 570			if (m.hasFileOnRemoteHost()
 571					|| GeoHelper.isGeoUri(m.getBody())
 572					|| m.treatAsDownloadable() == Message.Decision.MUST
 573					|| (t != null && t instanceof HttpDownloadConnection)) {
 574				copyUrl.setVisible(true);
 575			}
 576			if ((m.getType() == Message.TYPE_TEXT && t == null && m.treatAsDownloadable() != Message.Decision.NEVER)
 577					|| (m.isFileOrImage() && t instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())){
 578				downloadFile.setVisible(true);
 579				downloadFile.setTitle(activity.getString(R.string.download_x_file,UIHelper.getFileDescriptionString(activity, m)));
 580			}
 581			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
 582					|| m.getStatus() == Message.STATUS_UNSEND
 583					|| m.getStatus() == Message.STATUS_OFFERED;
 584			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
 585				cancelTransmission.setVisible(true);
 586			}
 587			if (treatAsFile) {
 588				String path = m.getRelativeFilePath();
 589				if (path == null || !path.startsWith("/")) {
 590					deleteFile.setVisible(true);
 591					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
 592				}
 593			}
 594			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
 595				showErrorMessage.setVisible(true);
 596			}
 597		}
 598	}
 599
 600	@Override
 601	public boolean onContextItemSelected(MenuItem item) {
 602		switch (item.getItemId()) {
 603			case R.id.share_with:
 604				shareWith(selectedMessage);
 605				return true;
 606			case R.id.copy_text:
 607				copyText(selectedMessage);
 608				return true;
 609			case R.id.select_text:
 610				selectText(selectedMessage);
 611				return true;
 612			case R.id.correct_message:
 613				correctMessage(selectedMessage);
 614				return true;
 615			case R.id.send_again:
 616				resendMessage(selectedMessage);
 617				return true;
 618			case R.id.copy_url:
 619				copyUrl(selectedMessage);
 620				return true;
 621			case R.id.download_file:
 622				downloadFile(selectedMessage);
 623				return true;
 624			case R.id.cancel_transmission:
 625				cancelTransmission(selectedMessage);
 626				return true;
 627			case R.id.retry_decryption:
 628				retryDecryption(selectedMessage);
 629				return true;
 630			case R.id.delete_file:
 631				deleteFile(selectedMessage);
 632				return true;
 633			case R.id.show_error_message:
 634				showErrorMessage(selectedMessage);
 635				return true;
 636			default:
 637				return super.onContextItemSelected(item);
 638		}
 639	}
 640
 641	private void showErrorMessage(final Message message) {
 642		AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 643		builder.setTitle(R.string.error_message);
 644		builder.setMessage(message.getErrorMessage());
 645		builder.setPositiveButton(R.string.confirm,null);
 646		builder.create().show();
 647	}
 648
 649	private void shareWith(Message message) {
 650		Intent shareIntent = new Intent();
 651		shareIntent.setAction(Intent.ACTION_SEND);
 652		if (GeoHelper.isGeoUri(message.getBody())) {
 653			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 654			shareIntent.setType("text/plain");
 655		} else {
 656			shareIntent.putExtra(Intent.EXTRA_STREAM,
 657					activity.xmppConnectionService.getFileBackend()
 658							.getJingleFileUri(message));
 659			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 660			String mime = message.getMimeType();
 661			if (mime == null) {
 662				mime = "*/*";
 663			}
 664			shareIntent.setType(mime);
 665		}
 666		try {
 667			activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
 668		} catch (ActivityNotFoundException e) {
 669			//This should happen only on faulty androids because normally chooser is always available
 670			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
 671		}
 672	}
 673
 674	private void copyText(Message message) {
 675		if (activity.copyTextToClipboard(message.getMergedBody().toString(),
 676				R.string.message_text)) {
 677			Toast.makeText(activity, R.string.message_copied_to_clipboard,
 678					Toast.LENGTH_SHORT).show();
 679		}
 680	}
 681
 682	private void selectText(Message message) {
 683		final int index;
 684		synchronized (this.messageList) {
 685			index = this.messageList.indexOf(message);
 686		}
 687		if (index >= 0) {
 688			final int first = this.messagesView.getFirstVisiblePosition();
 689			final int last = first + this.messagesView.getChildCount();
 690			if (index >= first && index < last)	{
 691				final View view = this.messagesView.getChildAt(index - first);
 692				final TextView messageBody = this.messageListAdapter.getMessageBody(view);
 693				if (messageBody != null) {
 694					ListSelectionManager.startSelection(messageBody);
 695				}
 696			}
 697		}
 698	}
 699
 700	private void deleteFile(Message message) {
 701		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
 702			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 703			activity.updateConversationList();
 704			updateMessages();
 705		}
 706	}
 707
 708	private void resendMessage(Message message) {
 709		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 710			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 711			if (!file.exists()) {
 712				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 713				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 714				activity.updateConversationList();
 715				updateMessages();
 716				return;
 717			}
 718		}
 719		activity.xmppConnectionService.resendFailedMessages(message);
 720	}
 721
 722	private void copyUrl(Message message) {
 723		final String url;
 724		final int resId;
 725		if (GeoHelper.isGeoUri(message.getBody())) {
 726			resId = R.string.location;
 727			url = message.getBody();
 728		} else if (message.hasFileOnRemoteHost()) {
 729			resId = R.string.file_url;
 730			url = message.getFileParams().url.toString();
 731		} else {
 732			url = message.getBody().trim();
 733			resId = R.string.file_url;
 734		}
 735		if (activity.copyTextToClipboard(url, resId)) {
 736			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 737					Toast.LENGTH_SHORT).show();
 738		}
 739	}
 740
 741	private void downloadFile(Message message) {
 742		activity.xmppConnectionService.getHttpConnectionManager()
 743				.createNewDownloadConnection(message,true);
 744	}
 745
 746	private void cancelTransmission(Message message) {
 747		Transferable transferable = message.getTransferable();
 748		if (transferable != null) {
 749			transferable.cancel();
 750		} else {
 751			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
 752		}
 753	}
 754
 755	private void retryDecryption(Message message) {
 756		message.setEncryption(Message.ENCRYPTION_PGP);
 757		activity.updateConversationList();
 758		updateMessages();
 759		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
 760	}
 761
 762	protected void privateMessageWith(final Jid counterpart) {
 763		this.mEditMessage.setText("");
 764		this.conversation.setNextCounterpart(counterpart);
 765		updateChatMsgHint();
 766		updateSendButton();
 767	}
 768
 769	private void correctMessage(Message message) {
 770		while(message.mergeable(message.next())) {
 771			message = message.next();
 772		}
 773		this.conversation.setCorrectingMessage(message);
 774		this.mEditMessage.getEditableText().clear();
 775		this.mEditMessage.getEditableText().append(message.getBody());
 776
 777	}
 778
 779	protected void highlightInConference(String nick) {
 780		String oldString = mEditMessage.getText().toString().trim();
 781		if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
 782			mEditMessage.getText().insert(0, nick + ": ");
 783		} else {
 784			if (mEditMessage.getText().charAt(
 785					mEditMessage.getSelectionStart() - 1) != ' ') {
 786				nick = " " + nick;
 787			}
 788			mEditMessage.getText().insert(mEditMessage.getSelectionStart(),
 789					nick + " ");
 790		}
 791	}
 792
 793	@Override
 794	public void onStop() {
 795		super.onStop();
 796		if (this.conversation != null) {
 797			final String msg = mEditMessage.getText().toString();
 798			this.conversation.setNextMessage(msg);
 799			updateChatState(this.conversation, msg);
 800		}
 801	}
 802
 803	private void updateChatState(final Conversation conversation, final String msg) {
 804		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 805		Account.State status = conversation.getAccount().getStatus();
 806		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 807			activity.xmppConnectionService.sendChatState(conversation);
 808		}
 809	}
 810
 811	public boolean reInit(Conversation conversation) {
 812		if (conversation == null) {
 813			return false;
 814		}
 815		this.activity = (ConversationActivity) getActivity();
 816		setupIme();
 817		if (this.conversation != null) {
 818			final String msg = mEditMessage.getText().toString();
 819			this.conversation.setNextMessage(msg);
 820			if (this.conversation != conversation) {
 821				updateChatState(this.conversation, msg);
 822			}
 823			this.conversation.trim();
 824		}
 825
 826		this.conversation = conversation;
 827		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating();
 828		this.mEditMessage.setEnabled(canWrite);
 829		this.mSendButton.setEnabled(canWrite);
 830		this.mEditMessage.setKeyboardListener(null);
 831		this.mEditMessage.setText("");
 832		this.mEditMessage.append(this.conversation.getNextMessage());
 833		this.mEditMessage.setKeyboardListener(this);
 834		messageListAdapter.updatePreferences();
 835		this.messagesView.setAdapter(messageListAdapter);
 836		updateMessages();
 837		this.messagesLoaded = true;
 838		synchronized (this.messageList) {
 839			final Message first = conversation.getFirstUnreadMessage();
 840			final int bottom = Math.max(0, this.messageList.size() - 1);
 841			final int pos;
 842			if (first == null) {
 843				pos = bottom;
 844			} else {
 845				int i = getIndexOf(first.getUuid(), this.messageList);
 846				pos = i < 0 ? bottom : i;
 847			}
 848			messagesView.setSelection(pos);
 849			return pos == bottom;
 850		}
 851	}
 852
 853	private OnClickListener mEnableAccountListener = new OnClickListener() {
 854		@Override
 855		public void onClick(View v) {
 856			final Account account = conversation == null ? null : conversation.getAccount();
 857			if (account != null) {
 858				account.setOption(Account.OPTION_DISABLED, false);
 859				activity.xmppConnectionService.updateAccount(account);
 860			}
 861		}
 862	};
 863
 864	private OnClickListener mUnblockClickListener = new OnClickListener() {
 865		@Override
 866		public void onClick(final View v) {
 867			v.post(new Runnable() {
 868				@Override
 869				public void run() {
 870					v.setVisibility(View.INVISIBLE);
 871				}
 872			});
 873			if (conversation.isDomainBlocked()) {
 874				BlockContactDialog.show(activity, activity.xmppConnectionService, conversation);
 875			} else {
 876				activity.unblockConversation(conversation);
 877			}
 878		}
 879	};
 880
 881	private OnClickListener mAddBackClickListener = new OnClickListener() {
 882
 883		@Override
 884		public void onClick(View v) {
 885			final Contact contact = conversation == null ? null : conversation.getContact();
 886			if (contact != null) {
 887				activity.xmppConnectionService.createContact(contact);
 888				activity.switchToContactDetails(contact);
 889			}
 890		}
 891	};
 892
 893	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 894		@Override
 895		public void onClick(View v) {
 896			final Contact contact = conversation == null ? null : conversation.getContact();
 897			if (contact != null) {
 898				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 899						activity.xmppConnectionService.getPresenceGenerator()
 900								.sendPresenceUpdatesTo(contact));
 901				hideSnackbar();
 902			}
 903		}
 904	};
 905
 906	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
 907		@Override
 908		public void onClick(View view) {
 909			Intent intent = new Intent(activity, VerifyOTRActivity.class);
 910			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 911			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 912			intent.putExtra(VerifyOTRActivity.EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 913			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
 914			startActivity(intent);
 915		}
 916	};
 917
 918	private void updateSnackBar(final Conversation conversation) {
 919		final Account account = conversation.getAccount();
 920		final int mode = conversation.getMode();
 921		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
 922		if (account.getStatus() == Account.State.DISABLED) {
 923			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
 924		} else if (conversation.isBlocked()) {
 925			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
 926		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 927			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener);
 928		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
 929			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription);
 930		} else if (mode == Conversation.MODE_MULTI
 931				&& !conversation.getMucOptions().online()
 932				&& account.getStatus() == Account.State.ONLINE) {
 933			switch (conversation.getMucOptions().getError()) {
 934				case NICK_IN_USE:
 935					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
 936					break;
 937				case NO_RESPONSE:
 938					showSnackbar(R.string.joining_conference, 0, null);
 939					break;
 940				case SERVER_NOT_FOUND:
 941					showSnackbar(R.string.remote_server_not_found,R.string.leave, leaveMuc);
 942					break;
 943				case PASSWORD_REQUIRED:
 944					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 945					break;
 946				case BANNED:
 947					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
 948					break;
 949				case MEMBERS_ONLY:
 950					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
 951					break;
 952				case KICKED:
 953					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
 954					break;
 955				case UNKNOWN:
 956					showSnackbar(R.string.conference_unknown_error, R.string.join, joinMuc);
 957					break;
 958				case SHUTDOWN:
 959					showSnackbar(R.string.conference_shutdown, R.string.join, joinMuc);
 960					break;
 961				default:
 962					break;
 963			}
 964		} else if (account.hasPendingPgpIntent(conversation)) {
 965			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
 966		} else if (mode == Conversation.MODE_SINGLE
 967				&& conversation.smpRequested()) {
 968			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
 969		} else if (mode == Conversation.MODE_SINGLE
 970				&& conversation.hasValidOtrSession()
 971				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
 972				&& (!conversation.isOtrFingerprintVerified())) {
 973			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
 974		} else {
 975			hideSnackbar();
 976		}
 977	}
 978
 979	public void updateMessages() {
 980		synchronized (this.messageList) {
 981			if (getView() == null) {
 982				return;
 983			}
 984			final ConversationActivity activity = (ConversationActivity) getActivity();
 985			if (this.conversation != null) {
 986				conversation.populateWithMessages(ConversationFragment.this.messageList);
 987				updateSnackBar(conversation);
 988				updateStatusMessages();
 989				this.messageListAdapter.notifyDataSetChanged();
 990				updateChatMsgHint();
 991				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
 992					activity.sendReadMarkerIfNecessary(conversation);
 993				}
 994				this.updateSendButton();
 995			}
 996		}
 997	}
 998
 999	protected void messageSent() {
1000		mEditMessage.setText("");
1001		updateChatMsgHint();
1002		new Handler().post(new Runnable() {
1003			@Override
1004			public void run() {
1005				int size = messageList.size();
1006				messagesView.setSelection(size - 1);
1007			}
1008		});
1009	}
1010
1011	public void setFocusOnInputField() {
1012		mEditMessage.requestFocus();
1013	}
1014
1015	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE}
1016
1017	private int getSendButtonImageResource(SendButtonAction action, Presence.Status status) {
1018		switch (action) {
1019			case TEXT:
1020				switch (status) {
1021					case CHAT:
1022					case ONLINE:
1023						return R.drawable.ic_send_text_online;
1024					case AWAY:
1025						return R.drawable.ic_send_text_away;
1026					case XA:
1027					case DND:
1028						return R.drawable.ic_send_text_dnd;
1029					default:
1030						return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1031				}
1032			case TAKE_PHOTO:
1033				switch (status) {
1034					case CHAT:
1035					case ONLINE:
1036						return R.drawable.ic_send_photo_online;
1037					case AWAY:
1038						return R.drawable.ic_send_photo_away;
1039					case XA:
1040					case DND:
1041						return R.drawable.ic_send_photo_dnd;
1042					default:
1043						return activity.getThemeResource(R.attr.ic_send_photo_offline, R.drawable.ic_send_photo_offline);
1044				}
1045			case RECORD_VOICE:
1046				switch (status) {
1047					case CHAT:
1048					case ONLINE:
1049						return R.drawable.ic_send_voice_online;
1050					case AWAY:
1051						return R.drawable.ic_send_voice_away;
1052					case XA:
1053					case DND:
1054						return R.drawable.ic_send_voice_dnd;
1055					default:
1056						return activity.getThemeResource(R.attr.ic_send_voice_offline, R.drawable.ic_send_voice_offline);
1057				}
1058			case SEND_LOCATION:
1059				switch (status) {
1060					case CHAT:
1061					case ONLINE:
1062						return R.drawable.ic_send_location_online;
1063					case AWAY:
1064						return R.drawable.ic_send_location_away;
1065					case XA:
1066					case DND:
1067						return R.drawable.ic_send_location_dnd;
1068					default:
1069						return activity.getThemeResource(R.attr.ic_send_location_offline, R.drawable.ic_send_location_offline);
1070				}
1071			case CANCEL:
1072				switch (status) {
1073					case CHAT:
1074					case ONLINE:
1075						return R.drawable.ic_send_cancel_online;
1076					case AWAY:
1077						return R.drawable.ic_send_cancel_away;
1078					case XA:
1079					case DND:
1080						return R.drawable.ic_send_cancel_dnd;
1081					default:
1082						return activity.getThemeResource(R.attr.ic_send_cancel_offline, R.drawable.ic_send_cancel_offline);
1083				}
1084			case CHOOSE_PICTURE:
1085				switch (status) {
1086					case CHAT:
1087					case ONLINE:
1088						return R.drawable.ic_send_picture_online;
1089					case AWAY:
1090						return R.drawable.ic_send_picture_away;
1091					case XA:
1092					case DND:
1093						return R.drawable.ic_send_picture_dnd;
1094					default:
1095						return activity.getThemeResource(R.attr.ic_send_picture_offline, R.drawable.ic_send_picture_offline);
1096				}
1097		}
1098		return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1099	}
1100
1101	public void updateSendButton() {
1102		final Conversation c = this.conversation;
1103		final SendButtonAction action;
1104		final Presence.Status status;
1105		final String text = this.mEditMessage == null ? "" : this.mEditMessage.getText().toString();
1106		final boolean empty = text.length() == 0;
1107		final boolean conference = c.getMode() == Conversation.MODE_MULTI;
1108		if (c.getCorrectingMessage() != null && (empty || text.equals(c.getCorrectingMessage().getBody()))) {
1109			action = SendButtonAction.CANCEL;
1110		} else if (conference && !c.getAccount().httpUploadAvailable()) {
1111			if (empty && c.getNextCounterpart() != null) {
1112				action = SendButtonAction.CANCEL;
1113			} else {
1114				action = SendButtonAction.TEXT;
1115			}
1116		} else {
1117			if (empty) {
1118				if (conference && c.getNextCounterpart() != null) {
1119					action = SendButtonAction.CANCEL;
1120				} else {
1121					String setting = activity.getPreferences().getString("quick_action", "recent");
1122					if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
1123						setting = "location";
1124					} else if (setting.equals("recent")) {
1125						setting = activity.getPreferences().getString("recently_used_quick_action", "text");
1126					}
1127					switch (setting) {
1128						case "photo":
1129							action = SendButtonAction.TAKE_PHOTO;
1130							break;
1131						case "location":
1132							action = SendButtonAction.SEND_LOCATION;
1133							break;
1134						case "voice":
1135							action = SendButtonAction.RECORD_VOICE;
1136							break;
1137						case "picture":
1138							action = SendButtonAction.CHOOSE_PICTURE;
1139							break;
1140						default:
1141							action = SendButtonAction.TEXT;
1142							break;
1143					}
1144				}
1145			} else {
1146				action = SendButtonAction.TEXT;
1147			}
1148		}
1149		if (activity.useSendButtonToIndicateStatus() && c != null
1150				&& c.getAccount().getStatus() == Account.State.ONLINE) {
1151			if (c.getMode() == Conversation.MODE_SINGLE) {
1152				status = c.getContact().getShownStatus();
1153			} else {
1154				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
1155			}
1156		} else {
1157			status = Presence.Status.OFFLINE;
1158		}
1159		this.mSendButton.setTag(action);
1160		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
1161	}
1162
1163	protected void updateStatusMessages() {
1164		synchronized (this.messageList) {
1165			if (showLoadMoreMessages(conversation)) {
1166				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
1167			}
1168			if (conversation.getMode() == Conversation.MODE_SINGLE) {
1169				ChatState state = conversation.getIncomingChatState();
1170				if (state == ChatState.COMPOSING) {
1171					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
1172				} else if (state == ChatState.PAUSED) {
1173					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
1174				} else {
1175					for (int i = this.messageList.size() - 1; i >= 0; --i) {
1176						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
1177							return;
1178						} else {
1179							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
1180								this.messageList.add(i + 1,
1181										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
1182								return;
1183							}
1184						}
1185					}
1186				}
1187			}
1188		}
1189	}
1190
1191	private boolean showLoadMoreMessages(final Conversation c) {
1192		final boolean mam = hasMamSupport(c);
1193		final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
1194		return mam && (c.getLastClearHistory() != 0  || (c.countMessages() == 0 && c.hasMessagesLeftOnServer()  && !service.queryInProgress(c)));
1195	}
1196
1197	private boolean hasMamSupport(final Conversation c) {
1198		if (c.getMode() == Conversation.MODE_SINGLE) {
1199			final XmppConnection connection = c.getAccount().getXmppConnection();
1200			return connection != null && connection.getFeatures().mam();
1201		} else {
1202			return c.getMucOptions().mamSupport();
1203		}
1204	}
1205
1206	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
1207		snackbar.setVisibility(View.VISIBLE);
1208		snackbar.setOnClickListener(null);
1209		snackbarMessage.setText(message);
1210		snackbarMessage.setOnClickListener(null);
1211		snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
1212		if (action != 0) {
1213			snackbarAction.setText(action);
1214		}
1215		snackbarAction.setOnClickListener(clickListener);
1216	}
1217
1218	protected void hideSnackbar() {
1219		snackbar.setVisibility(View.GONE);
1220	}
1221
1222	protected void sendPlainTextMessage(Message message) {
1223		ConversationActivity activity = (ConversationActivity) getActivity();
1224		activity.xmppConnectionService.sendMessage(message);
1225		messageSent();
1226	}
1227
1228	protected void sendPgpMessage(final Message message) {
1229		final ConversationActivity activity = (ConversationActivity) getActivity();
1230		final XmppConnectionService xmppService = activity.xmppConnectionService;
1231		final Contact contact = message.getConversation().getContact();
1232		if (!activity.hasPgp()) {
1233			activity.showInstallPgpDialog();
1234			return;
1235		}
1236		if (conversation.getAccount().getPgpSignature() == null) {
1237			activity.announcePgp(conversation.getAccount(), conversation, activity.onOpenPGPKeyPublished);
1238			return;
1239		}
1240		if (conversation.getMode() == Conversation.MODE_SINGLE) {
1241			if (contact.getPgpKeyId() != 0) {
1242				xmppService.getPgpEngine().hasKey(contact,
1243						new UiCallback<Contact>() {
1244
1245							@Override
1246							public void userInputRequried(PendingIntent pi,
1247														  Contact contact) {
1248								activity.runIntent(
1249										pi,
1250										ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
1251							}
1252
1253							@Override
1254							public void success(Contact contact) {
1255								activity.encryptTextMessage(message);
1256							}
1257
1258							@Override
1259							public void error(int error, Contact contact) {
1260								activity.runOnUiThread(new Runnable() {
1261									@Override
1262									public void run() {
1263										Toast.makeText(activity,
1264												R.string.unable_to_connect_to_keychain,
1265												Toast.LENGTH_SHORT
1266										).show();
1267									}
1268								});
1269							}
1270						});
1271
1272			} else {
1273				showNoPGPKeyDialog(false,
1274						new DialogInterface.OnClickListener() {
1275
1276							@Override
1277							public void onClick(DialogInterface dialog,
1278												int which) {
1279								conversation
1280										.setNextEncryption(Message.ENCRYPTION_NONE);
1281								xmppService.updateConversation(conversation);
1282								message.setEncryption(Message.ENCRYPTION_NONE);
1283								xmppService.sendMessage(message);
1284								messageSent();
1285							}
1286						});
1287			}
1288		} else {
1289			if (conversation.getMucOptions().pgpKeysInUse()) {
1290				if (!conversation.getMucOptions().everybodyHasKeys()) {
1291					Toast warning = Toast
1292							.makeText(getActivity(),
1293									R.string.missing_public_keys,
1294									Toast.LENGTH_LONG);
1295					warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1296					warning.show();
1297				}
1298				activity.encryptTextMessage(message);
1299			} else {
1300				showNoPGPKeyDialog(true,
1301						new DialogInterface.OnClickListener() {
1302
1303							@Override
1304							public void onClick(DialogInterface dialog,
1305												int which) {
1306								conversation
1307										.setNextEncryption(Message.ENCRYPTION_NONE);
1308								message.setEncryption(Message.ENCRYPTION_NONE);
1309								xmppService.updateConversation(conversation);
1310								xmppService.sendMessage(message);
1311								messageSent();
1312							}
1313						});
1314			}
1315		}
1316	}
1317
1318	public void showNoPGPKeyDialog(boolean plural,
1319								   DialogInterface.OnClickListener listener) {
1320		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1321		builder.setIconAttribute(android.R.attr.alertDialogIcon);
1322		if (plural) {
1323			builder.setTitle(getString(R.string.no_pgp_keys));
1324			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
1325		} else {
1326			builder.setTitle(getString(R.string.no_pgp_key));
1327			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
1328		}
1329		builder.setNegativeButton(getString(R.string.cancel), null);
1330		builder.setPositiveButton(getString(R.string.send_unencrypted),
1331				listener);
1332		builder.create().show();
1333	}
1334
1335	protected void sendAxolotlMessage(final Message message) {
1336		final ConversationActivity activity = (ConversationActivity) getActivity();
1337		final XmppConnectionService xmppService = activity.xmppConnectionService;
1338		xmppService.sendMessage(message);
1339		messageSent();
1340	}
1341
1342	protected void sendOtrMessage(final Message message) {
1343		final ConversationActivity activity = (ConversationActivity) getActivity();
1344		final XmppConnectionService xmppService = activity.xmppConnectionService;
1345		activity.selectPresence(message.getConversation(),
1346				new OnPresenceSelected() {
1347
1348					@Override
1349					public void onPresenceSelected() {
1350						message.setCounterpart(conversation.getNextCounterpart());
1351						xmppService.sendMessage(message);
1352						messageSent();
1353					}
1354				});
1355	}
1356
1357	public void appendText(String text) {
1358		if (text == null) {
1359			return;
1360		}
1361		String previous = this.mEditMessage.getText().toString();
1362		if (previous.length() != 0 && !previous.endsWith(" ")) {
1363			text = " " + text;
1364		}
1365		this.mEditMessage.append(text);
1366	}
1367
1368	@Override
1369	public boolean onEnterPressed() {
1370		if (activity.enterIsSend()) {
1371			sendMessage();
1372			return true;
1373		} else {
1374			return false;
1375		}
1376	}
1377
1378	@Override
1379	public void onTypingStarted() {
1380		Account.State status = conversation.getAccount().getStatus();
1381		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1382			activity.xmppConnectionService.sendChatState(conversation);
1383		}
1384		activity.hideConversationsOverview();
1385		updateSendButton();
1386	}
1387
1388	@Override
1389	public void onTypingStopped() {
1390		Account.State status = conversation.getAccount().getStatus();
1391		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1392			activity.xmppConnectionService.sendChatState(conversation);
1393		}
1394	}
1395
1396	@Override
1397	public void onTextDeleted() {
1398		Account.State status = conversation.getAccount().getStatus();
1399		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1400			activity.xmppConnectionService.sendChatState(conversation);
1401		}
1402		updateSendButton();
1403	}
1404
1405	@Override
1406	public void onTextChanged() {
1407		if (conversation != null && conversation.getCorrectingMessage() != null) {
1408			updateSendButton();
1409		}
1410	}
1411
1412	private int completionIndex = 0;
1413	private int lastCompletionLength = 0;
1414	private String incomplete;
1415	private int lastCompletionCursor;
1416	private boolean firstWord = false;
1417
1418	@Override
1419	public boolean onTabPressed(boolean repeated) {
1420		if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
1421			return false;
1422		}
1423		if (repeated) {
1424			completionIndex++;
1425		} else {
1426			lastCompletionLength = 0;
1427			completionIndex = 0;
1428			final String content = mEditMessage.getText().toString();
1429			lastCompletionCursor = mEditMessage.getSelectionEnd();
1430			int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ",lastCompletionCursor-1) + 1 : 0;
1431			firstWord = start == 0;
1432			incomplete = content.substring(start,lastCompletionCursor);
1433		}
1434		List<String> completions = new ArrayList<>();
1435		for(MucOptions.User user : conversation.getMucOptions().getUsers()) {
1436			String name = user.getName();
1437			if (name != null && name.startsWith(incomplete)) {
1438				completions.add(name+(firstWord ? ": " : " "));
1439			}
1440		}
1441		Collections.sort(completions);
1442		if (completions.size() > completionIndex) {
1443			String completion = completions.get(completionIndex).substring(incomplete.length());
1444			mEditMessage.getEditableText().delete(lastCompletionCursor,lastCompletionCursor + lastCompletionLength);
1445			mEditMessage.getEditableText().insert(lastCompletionCursor, completion);
1446			lastCompletionLength = completion.length();
1447		} else {
1448			completionIndex = -1;
1449			mEditMessage.getEditableText().delete(lastCompletionCursor,lastCompletionCursor + lastCompletionLength);
1450			lastCompletionLength = 0;
1451		}
1452		return true;
1453	}
1454
1455	@Override
1456	public void onActivityResult(int requestCode, int resultCode,
1457	                                final Intent data) {
1458		if (resultCode == Activity.RESULT_OK) {
1459			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1460				activity.getSelectedConversation().getAccount().getPgpDecryptionService().continueDecryption(true);
1461			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_TEXT) {
1462				final String body = mEditMessage.getText().toString();
1463				Message message = new Message(conversation, body, conversation.getNextEncryption());
1464				sendAxolotlMessage(message);
1465			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_MENU) {
1466				int choice = data.getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID);
1467				activity.selectPresenceToAttachFile(choice, conversation.getNextEncryption());
1468			}
1469		}
1470	}
1471
1472}