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.os.SystemClock;
  15import android.support.v13.view.inputmethod.InputConnectionCompat;
  16import android.support.v13.view.inputmethod.InputContentInfoCompat;
  17import android.text.Editable;
  18import android.text.InputType;
  19import android.util.Log;
  20import android.util.Pair;
  21import android.view.ContextMenu;
  22import android.view.ContextMenu.ContextMenuInfo;
  23import android.view.Gravity;
  24import android.view.KeyEvent;
  25import android.view.LayoutInflater;
  26import android.view.MenuItem;
  27import android.view.MotionEvent;
  28import android.view.View;
  29import android.view.View.OnClickListener;
  30import android.view.ViewGroup;
  31import android.view.inputmethod.EditorInfo;
  32import android.view.inputmethod.InputMethodManager;
  33import android.widget.AbsListView;
  34import android.widget.AbsListView.OnScrollListener;
  35import android.widget.AdapterView;
  36import android.widget.AdapterView.AdapterContextMenuInfo;
  37import android.widget.ImageButton;
  38import android.widget.ListView;
  39import android.widget.PopupMenu;
  40import android.widget.RelativeLayout;
  41import android.widget.TextView;
  42import android.widget.TextView.OnEditorActionListener;
  43import android.widget.Toast;
  44
  45import net.java.otr4j.session.SessionStatus;
  46
  47import java.util.ArrayList;
  48import java.util.Arrays;
  49import java.util.Collections;
  50import java.util.HashSet;
  51import java.util.List;
  52import java.util.Set;
  53import java.util.UUID;
  54import java.util.concurrent.atomic.AtomicBoolean;
  55
  56import eu.siacs.conversations.Config;
  57import eu.siacs.conversations.R;
  58import eu.siacs.conversations.entities.Account;
  59import eu.siacs.conversations.entities.Blockable;
  60import eu.siacs.conversations.entities.Contact;
  61import eu.siacs.conversations.entities.Conversation;
  62import eu.siacs.conversations.entities.DownloadableFile;
  63import eu.siacs.conversations.entities.Message;
  64import eu.siacs.conversations.entities.MucOptions;
  65import eu.siacs.conversations.entities.Presence;
  66import eu.siacs.conversations.entities.ReadByMarker;
  67import eu.siacs.conversations.entities.Transferable;
  68import eu.siacs.conversations.entities.TransferablePlaceholder;
  69import eu.siacs.conversations.http.HttpDownloadConnection;
  70import eu.siacs.conversations.persistance.FileBackend;
  71import eu.siacs.conversations.services.MessageArchiveService;
  72import eu.siacs.conversations.services.XmppConnectionService;
  73import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
  74import eu.siacs.conversations.ui.XmppActivity.OnValueEdited;
  75import eu.siacs.conversations.ui.adapter.MessageAdapter;
  76import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked;
  77import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
  78import eu.siacs.conversations.ui.widget.EditMessage;
  79import eu.siacs.conversations.utils.MessageUtils;
  80import eu.siacs.conversations.utils.NickValidityChecker;
  81import eu.siacs.conversations.utils.StylingHelper;
  82import eu.siacs.conversations.utils.UIHelper;
  83import eu.siacs.conversations.xmpp.XmppConnection;
  84import eu.siacs.conversations.xmpp.chatstate.ChatState;
  85import eu.siacs.conversations.xmpp.jid.Jid;
  86
  87public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  88
  89	final protected List<Message> messageList = new ArrayList<>();
  90	protected Conversation conversation;
  91	protected ListView messagesView;
  92	protected MessageAdapter messageListAdapter;
  93	private EditMessage mEditMessage;
  94	private ImageButton mSendButton;
  95	private RelativeLayout snackbar;
  96	private TextView snackbarMessage;
  97	private TextView snackbarAction;
  98	private Toast messageLoaderToast;
  99	private OnClickListener clickToMuc = new OnClickListener() {
 100
 101		@Override
 102		public void onClick(View v) {
 103			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 104			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 105			intent.putExtra("uuid", conversation.getUuid());
 106			startActivity(intent);
 107		}
 108	};
 109	private ConversationActivity activity;
 110	private OnClickListener leaveMuc = new OnClickListener() {
 111
 112		@Override
 113		public void onClick(View v) {
 114			activity.endConversation(conversation);
 115		}
 116	};
 117	private OnClickListener joinMuc = new OnClickListener() {
 118
 119		@Override
 120		public void onClick(View v) {
 121			activity.xmppConnectionService.joinMuc(conversation);
 122		}
 123	};
 124	private OnClickListener enterPassword = new OnClickListener() {
 125
 126		@Override
 127		public void onClick(View v) {
 128			MucOptions muc = conversation.getMucOptions();
 129			String password = muc.getPassword();
 130			if (password == null) {
 131				password = "";
 132			}
 133			activity.quickPasswordEdit(password, new OnValueEdited() {
 134
 135				@Override
 136				public String onValueEdited(String value) {
 137					activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 138					return null;
 139				}
 140			});
 141		}
 142	};
 143	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 144
 145		@Override
 146		public void onScrollStateChanged(AbsListView view, int scrollState) {
 147			// TODO Auto-generated method stub
 148
 149		}
 150
 151		@Override
 152		public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 153			synchronized (ConversationFragment.this.messageList) {
 154				if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 155					long timestamp;
 156					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 157						timestamp = messageList.get(1).getTimeSent();
 158					} else {
 159						timestamp = messageList.get(0).getTimeSent();
 160					}
 161					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 162						@Override
 163						public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 164							if (ConversationFragment.this.conversation != conversation) {
 165								conversation.messagesLoaded.set(true);
 166								return;
 167							}
 168							activity.runOnUiThread(new Runnable() {
 169								@Override
 170								public void run() {
 171									final int oldPosition = messagesView.getFirstVisiblePosition();
 172									Message message = null;
 173									int childPos;
 174									for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 175										message = messageList.get(oldPosition + childPos);
 176										if (message.getType() != Message.TYPE_STATUS) {
 177											break;
 178										}
 179									}
 180									final String uuid = message != null ? message.getUuid() : null;
 181									View v = messagesView.getChildAt(childPos);
 182									final int pxOffset = (v == null) ? 0 : v.getTop();
 183									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 184									try {
 185										updateStatusMessages();
 186									} catch (IllegalStateException e) {
 187										Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 188									}
 189									messageListAdapter.notifyDataSetChanged();
 190									int pos = Math.max(getIndexOf(uuid, messageList), 0);
 191									messagesView.setSelectionFromTop(pos, pxOffset);
 192									if (messageLoaderToast != null) {
 193										messageLoaderToast.cancel();
 194									}
 195									conversation.messagesLoaded.set(true);
 196								}
 197							});
 198						}
 199
 200						@Override
 201						public void informUser(final int resId) {
 202
 203							activity.runOnUiThread(new Runnable() {
 204								@Override
 205								public void run() {
 206									if (messageLoaderToast != null) {
 207										messageLoaderToast.cancel();
 208									}
 209									if (ConversationFragment.this.conversation != conversation) {
 210										return;
 211									}
 212									messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 213									messageLoaderToast.show();
 214								}
 215							});
 216
 217						}
 218					});
 219
 220				}
 221			}
 222		}
 223	};
 224	protected OnClickListener clickToVerify = new OnClickListener() {
 225
 226		@Override
 227		public void onClick(View v) {
 228			activity.verifyOtrSessionDialog(conversation, v);
 229		}
 230	};
 231	private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 232		@Override
 233		public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 234			// try to get permission to read the image, if applicable
 235			if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 236				try {
 237					inputContentInfo.requestPermission();
 238				} catch (Exception e) {
 239					Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 240					Toast.makeText(
 241							activity,
 242							activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()),
 243							Toast.LENGTH_LONG
 244					).show();
 245					return false;
 246				}
 247			}
 248			if (activity.hasStoragePermission(ConversationActivity.REQUEST_ADD_EDITOR_CONTENT)) {
 249				activity.attachImageToConversation(inputContentInfo.getContentUri());
 250			} else {
 251				activity.mPendingEditorContent = inputContentInfo.getContentUri();
 252			}
 253			return true;
 254		}
 255	};
 256	private Message selectedMessage;
 257	private OnClickListener mEnableAccountListener = new OnClickListener() {
 258		@Override
 259		public void onClick(View v) {
 260			final Account account = conversation == null ? null : conversation.getAccount();
 261			if (account != null) {
 262				account.setOption(Account.OPTION_DISABLED, false);
 263				activity.xmppConnectionService.updateAccount(account);
 264			}
 265		}
 266	};
 267	private OnClickListener mUnblockClickListener = new OnClickListener() {
 268		@Override
 269		public void onClick(final View v) {
 270			v.post(new Runnable() {
 271				@Override
 272				public void run() {
 273					v.setVisibility(View.INVISIBLE);
 274				}
 275			});
 276			if (conversation.isDomainBlocked()) {
 277				BlockContactDialog.show(activity, conversation);
 278			} else {
 279				activity.unblockConversation(conversation);
 280			}
 281		}
 282	};
 283	private OnClickListener mBlockClickListener = new OnClickListener() {
 284		@Override
 285		public void onClick(final View view) {
 286			showBlockSubmenu(view);
 287		}
 288	};
 289	private OnClickListener mAddBackClickListener = new OnClickListener() {
 290
 291		@Override
 292		public void onClick(View v) {
 293			final Contact contact = conversation == null ? null : conversation.getContact();
 294			if (contact != null) {
 295				activity.xmppConnectionService.createContact(contact);
 296				activity.switchToContactDetails(contact);
 297			}
 298		}
 299	};
 300	private View.OnLongClickListener mLongPressBlockListener = new View.OnLongClickListener() {
 301		@Override
 302		public boolean onLongClick(View v) {
 303			showBlockSubmenu(v);
 304			return true;
 305		}
 306	};
 307	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 308		@Override
 309		public void onClick(View v) {
 310			final Contact contact = conversation == null ? null : conversation.getContact();
 311			if (contact != null) {
 312				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 313						activity.xmppConnectionService.getPresenceGenerator()
 314								.sendPresenceUpdatesTo(contact));
 315				hideSnackbar();
 316			}
 317		}
 318	};
 319	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
 320		@Override
 321		public void onClick(View view) {
 322			Intent intent = new Intent(activity, VerifyOTRActivity.class);
 323			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 324			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 325			intent.putExtra(VerifyOTRActivity.EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 326			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
 327			startActivity(intent);
 328		}
 329	};
 330	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 331
 332		@Override
 333		public void onClick(View v) {
 334			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 335			if (pendingIntent != null) {
 336				try {
 337					activity.startIntentSenderForResult(pendingIntent.getIntentSender(),
 338							ConversationActivity.REQUEST_DECRYPT_PGP,
 339							null,
 340							0,
 341							0,
 342							0);
 343				} catch (SendIntentException e) {
 344					Toast.makeText(activity, R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 345					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 346				}
 347			}
 348			updateSnackBar(conversation);
 349		}
 350	};
 351	private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 352	private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
 353
 354		@Override
 355		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 356			if (actionId == EditorInfo.IME_ACTION_SEND) {
 357				InputMethodManager imm = (InputMethodManager) v.getContext()
 358						.getSystemService(Context.INPUT_METHOD_SERVICE);
 359				if (imm.isFullscreenMode()) {
 360					imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 361				}
 362				sendMessage();
 363				return true;
 364			} else {
 365				return false;
 366			}
 367		}
 368	};
 369	private OnClickListener mSendButtonListener = new OnClickListener() {
 370
 371		@Override
 372		public void onClick(View v) {
 373			Object tag = v.getTag();
 374			if (tag instanceof SendButtonAction) {
 375				SendButtonAction action = (SendButtonAction) tag;
 376				switch (action) {
 377					case TAKE_PHOTO:
 378						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_TAKE_PHOTO);
 379						break;
 380					case RECORD_VIDEO:
 381						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VIDEO);
 382						break;
 383					case SEND_LOCATION:
 384						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_LOCATION);
 385						break;
 386					case RECORD_VOICE:
 387						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
 388						break;
 389					case CHOOSE_PICTURE:
 390						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 391						break;
 392					case CANCEL:
 393						if (conversation != null) {
 394							if (conversation.setCorrectingMessage(null)) {
 395								mEditMessage.setText("");
 396								mEditMessage.append(conversation.getDraftMessage());
 397								conversation.setDraftMessage(null);
 398							} else if (conversation.getMode() == Conversation.MODE_MULTI) {
 399								conversation.setNextCounterpart(null);
 400							}
 401							updateChatMsgHint();
 402							updateSendButton();
 403							updateEditablity();
 404						}
 405						break;
 406					default:
 407						sendMessage();
 408				}
 409			} else {
 410				sendMessage();
 411			}
 412		}
 413	};
 414	private int completionIndex = 0;
 415	private int lastCompletionLength = 0;
 416	private String incomplete;
 417	private int lastCompletionCursor;
 418	private boolean firstWord = false;
 419
 420	private int getIndexOf(String uuid, List<Message> messages) {
 421		if (uuid == null) {
 422			return messages.size() - 1;
 423		}
 424		for (int i = 0; i < messages.size(); ++i) {
 425			if (uuid.equals(messages.get(i).getUuid())) {
 426				return i;
 427			} else {
 428				Message next = messages.get(i);
 429				while (next != null && next.wasMergedIntoPrevious()) {
 430					if (uuid.equals(next.getUuid())) {
 431						return i;
 432					}
 433					next = next.next();
 434				}
 435
 436			}
 437		}
 438		return -1;
 439	}
 440
 441	public Pair<Integer, Integer> getScrollPosition() {
 442		if (this.messagesView.getCount() == 0 ||
 443				this.messagesView.getLastVisiblePosition() == this.messagesView.getCount() - 1) {
 444			return null;
 445		} else {
 446			final int pos = messagesView.getFirstVisiblePosition();
 447			final View view = messagesView.getChildAt(0);
 448			if (view == null) {
 449				return null;
 450			} else {
 451				return new Pair<>(pos, view.getTop());
 452			}
 453		}
 454	}
 455
 456	public void setScrollPosition(Pair<Integer, Integer> scrollPosition) {
 457		if (scrollPosition != null) {
 458			this.messagesView.setSelectionFromTop(scrollPosition.first, scrollPosition.second);
 459		}
 460	}
 461
 462	private void sendMessage() {
 463		final String body = mEditMessage.getText().toString();
 464		final Conversation conversation = this.conversation;
 465		if (body.length() == 0 || conversation == null) {
 466			return;
 467		}
 468		final Message message;
 469		if (conversation.getCorrectingMessage() == null) {
 470			message = new Message(conversation, body, conversation.getNextEncryption());
 471			if (conversation.getMode() == Conversation.MODE_MULTI) {
 472				if (conversation.getNextCounterpart() != null) {
 473					message.setCounterpart(conversation.getNextCounterpart());
 474					message.setType(Message.TYPE_PRIVATE);
 475				}
 476			}
 477		} else {
 478			message = conversation.getCorrectingMessage();
 479			message.setBody(body);
 480			message.setEdited(message.getUuid());
 481			message.setUuid(UUID.randomUUID().toString());
 482		}
 483		switch (message.getConversation().getNextEncryption()) {
 484			case Message.ENCRYPTION_OTR:
 485				sendOtrMessage(message);
 486				break;
 487			case Message.ENCRYPTION_PGP:
 488				sendPgpMessage(message);
 489				break;
 490			case Message.ENCRYPTION_AXOLOTL:
 491				if (!activity.trustKeysIfNeeded(ConversationActivity.REQUEST_TRUST_KEYS_TEXT)) {
 492					sendAxolotlMessage(message);
 493				}
 494				break;
 495			default:
 496				sendPlainTextMessage(message);
 497		}
 498	}
 499
 500	public void updateChatMsgHint() {
 501		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 502		if (conversation.getCorrectingMessage() != null) {
 503			this.mEditMessage.setHint(R.string.send_corrected_message);
 504		} else if (multi && conversation.getNextCounterpart() != null) {
 505			this.mEditMessage.setHint(getString(
 506					R.string.send_private_message_to,
 507					conversation.getNextCounterpart().getResourcepart()));
 508		} else if (multi && !conversation.getMucOptions().participating()) {
 509			this.mEditMessage.setHint(R.string.you_are_not_participating);
 510		} else {
 511			this.mEditMessage.setHint(UIHelper.getMessageHint(activity, conversation));
 512			getActivity().invalidateOptionsMenu();
 513		}
 514	}
 515
 516	public void setupIme() {
 517		if (activity != null) {
 518			if (activity.usingEnterKey() && activity.enterIsSend()) {
 519				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_FLAG_MULTI_LINE));
 520				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 521			} else if (activity.usingEnterKey()) {
 522				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 523				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 524			} else {
 525				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 526				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 527			}
 528		}
 529	}
 530
 531	@Override
 532	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 533		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
 534		view.setOnClickListener(null);
 535
 536		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 537		mEditMessage.setOnClickListener(new OnClickListener() {
 538
 539			@Override
 540			public void onClick(View v) {
 541				if (activity != null) {
 542					activity.hideConversationsOverview();
 543				}
 544			}
 545		});
 546
 547		mEditMessage.addTextChangedListener(new StylingHelper.MessageEditorStyler(mEditMessage));
 548
 549		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 550		mEditMessage.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 551
 552		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 553		mSendButton.setOnClickListener(this.mSendButtonListener);
 554
 555		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 556		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 557		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 558
 559		messagesView = (ListView) view.findViewById(R.id.messages_view);
 560		messagesView.setOnScrollListener(mOnScrollListener);
 561		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 562		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 563		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 564
 565			@Override
 566			public void onContactPictureClicked(Message message) {
 567				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 568					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 569						Jid user = message.getCounterpart();
 570						if (user != null && !user.isBareJid()) {
 571							if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
 572								Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
 573							}
 574							highlightInConference(user.getResourcepart());
 575						}
 576					} else {
 577						if (!message.getContact().isSelf()) {
 578							String fingerprint;
 579							if (message.getEncryption() == Message.ENCRYPTION_PGP
 580									|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 581								fingerprint = "pgp";
 582							} else {
 583								fingerprint = message.getFingerprint();
 584							}
 585							activity.switchToContactDetails(message.getContact(), fingerprint);
 586						}
 587					}
 588				} else {
 589					Account account = message.getConversation().getAccount();
 590					Intent intent;
 591					if (activity.manuallyChangePresence()) {
 592						intent = new Intent(activity, SetPresenceActivity.class);
 593						intent.putExtra(SetPresenceActivity.EXTRA_ACCOUNT, account.getJid().toBareJid().toString());
 594					} else {
 595						intent = new Intent(activity, EditAccountActivity.class);
 596						intent.putExtra("jid", account.getJid().toBareJid().toString());
 597						String fingerprint;
 598						if (message.getEncryption() == Message.ENCRYPTION_PGP
 599								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 600							fingerprint = "pgp";
 601						} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 602							fingerprint = "otr";
 603						} else {
 604							fingerprint = message.getFingerprint();
 605						}
 606						intent.putExtra("fingerprint", fingerprint);
 607					}
 608					startActivity(intent);
 609				}
 610			}
 611		});
 612		messageListAdapter
 613				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 614
 615					@Override
 616					public void onContactPictureLongClicked(Message message) {
 617						if (message.getStatus() <= Message.STATUS_RECEIVED) {
 618							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 619								Jid user = message.getCounterpart();
 620								if (user != null && !user.isBareJid()) {
 621									if (message.getConversation().getMucOptions().isUserInRoom(user)) {
 622										privateMessageWith(user);
 623									} else {
 624										Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
 625									}
 626								}
 627							}
 628						} else {
 629							activity.showQrCode();
 630						}
 631					}
 632				});
 633		messageListAdapter.setOnQuoteListener(new MessageAdapter.OnQuoteListener() {
 634
 635			@Override
 636			public void onQuote(String text) {
 637				quoteText(text);
 638			}
 639		});
 640		messagesView.setAdapter(messageListAdapter);
 641
 642		registerForContextMenu(messagesView);
 643
 644		return view;
 645	}
 646
 647	private void quoteText(String text) {
 648		if (mEditMessage.isEnabled()) {
 649			text = text.replaceAll("(\n *){2,}", "\n").replaceAll("(^|\n)", "$1> ").replaceAll("\n$", "");
 650			Editable editable = mEditMessage.getEditableText();
 651			int position = mEditMessage.getSelectionEnd();
 652			if (position == -1) position = editable.length();
 653			if (position > 0 && editable.charAt(position - 1) != '\n') {
 654				editable.insert(position++, "\n");
 655			}
 656			editable.insert(position, text);
 657			position += text.length();
 658			editable.insert(position++, "\n");
 659			if (position < editable.length() && editable.charAt(position) != '\n') {
 660				editable.insert(position, "\n");
 661			}
 662			mEditMessage.setSelection(position);
 663			mEditMessage.requestFocus();
 664			InputMethodManager inputMethodManager = (InputMethodManager) getActivity()
 665					.getSystemService(Context.INPUT_METHOD_SERVICE);
 666			if (inputMethodManager != null) {
 667				inputMethodManager.showSoftInput(mEditMessage, InputMethodManager.SHOW_IMPLICIT);
 668			}
 669		}
 670	}
 671
 672	private void quoteMessage(Message message) {
 673		quoteText(MessageUtils.prepareQuote(message));
 674	}
 675
 676	@Override
 677	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 678		synchronized (this.messageList) {
 679			super.onCreateContextMenu(menu, v, menuInfo);
 680			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 681			this.selectedMessage = this.messageList.get(acmi.position);
 682			populateContextMenu(menu);
 683		}
 684	}
 685
 686	private void populateContextMenu(ContextMenu menu) {
 687		final Message m = this.selectedMessage;
 688		final Transferable t = m.getTransferable();
 689		Message relevantForCorrection = m;
 690		while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
 691			relevantForCorrection = relevantForCorrection.next();
 692		}
 693		if (m.getType() != Message.TYPE_STATUS) {
 694			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
 695					&& m.getType() != Message.TYPE_PRIVATE
 696					&& t == null;
 697			final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
 698					|| m.getEncryption() == Message.ENCRYPTION_PGP;
 699			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 700			menu.setHeaderTitle(R.string.message_options);
 701			MenuItem copyMessage = menu.findItem(R.id.copy_message);
 702			MenuItem quoteMessage = menu.findItem(R.id.quote_message);
 703			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
 704			MenuItem correctMessage = menu.findItem(R.id.correct_message);
 705			MenuItem shareWith = menu.findItem(R.id.share_with);
 706			MenuItem sendAgain = menu.findItem(R.id.send_again);
 707			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 708			MenuItem downloadFile = menu.findItem(R.id.download_file);
 709			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 710			MenuItem deleteFile = menu.findItem(R.id.delete_file);
 711			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
 712			if (!treatAsFile && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
 713				copyMessage.setVisible(true);
 714				quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
 715			}
 716			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 717				retryDecryption.setVisible(true);
 718			}
 719			if (relevantForCorrection.getType() == Message.TYPE_TEXT
 720					&& relevantForCorrection.isLastCorrectableMessage()
 721					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
 722				correctMessage.setVisible(true);
 723			}
 724			if (treatAsFile || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
 725				shareWith.setVisible(true);
 726			}
 727			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
 728				sendAgain.setVisible(true);
 729			}
 730			if (m.hasFileOnRemoteHost()
 731					|| m.isGeoUri()
 732					|| m.treatAsDownloadable()
 733					|| (t != null && t instanceof HttpDownloadConnection)) {
 734				copyUrl.setVisible(true);
 735			}
 736			if ((m.isFileOrImage() && t instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())) {
 737				downloadFile.setVisible(true);
 738				downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
 739			}
 740			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
 741					|| m.getStatus() == Message.STATUS_UNSEND
 742					|| m.getStatus() == Message.STATUS_OFFERED;
 743			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
 744				cancelTransmission.setVisible(true);
 745			}
 746			if (treatAsFile) {
 747				String path = m.getRelativeFilePath();
 748				if (path == null || !path.startsWith("/")) {
 749					deleteFile.setVisible(true);
 750					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
 751				}
 752			}
 753			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
 754				showErrorMessage.setVisible(true);
 755			}
 756		}
 757	}
 758
 759	@Override
 760	public boolean onContextItemSelected(MenuItem item) {
 761		switch (item.getItemId()) {
 762			case R.id.share_with:
 763				shareWith(selectedMessage);
 764				return true;
 765			case R.id.correct_message:
 766				correctMessage(selectedMessage);
 767				return true;
 768			case R.id.copy_message:
 769				copyMessage(selectedMessage);
 770				return true;
 771			case R.id.quote_message:
 772				quoteMessage(selectedMessage);
 773				return true;
 774			case R.id.send_again:
 775				resendMessage(selectedMessage);
 776				return true;
 777			case R.id.copy_url:
 778				copyUrl(selectedMessage);
 779				return true;
 780			case R.id.download_file:
 781				downloadFile(selectedMessage);
 782				return true;
 783			case R.id.cancel_transmission:
 784				cancelTransmission(selectedMessage);
 785				return true;
 786			case R.id.retry_decryption:
 787				retryDecryption(selectedMessage);
 788				return true;
 789			case R.id.delete_file:
 790				deleteFile(selectedMessage);
 791				return true;
 792			case R.id.show_error_message:
 793				showErrorMessage(selectedMessage);
 794				return true;
 795			default:
 796				return super.onContextItemSelected(item);
 797		}
 798	}
 799
 800	private void showErrorMessage(final Message message) {
 801		AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 802		builder.setTitle(R.string.error_message);
 803		builder.setMessage(message.getErrorMessage());
 804		builder.setPositiveButton(R.string.confirm, null);
 805		builder.create().show();
 806	}
 807
 808	private void shareWith(Message message) {
 809		Intent shareIntent = new Intent();
 810		shareIntent.setAction(Intent.ACTION_SEND);
 811		if (message.isGeoUri()) {
 812			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 813			shareIntent.setType("text/plain");
 814		} else if (!message.isFileOrImage()) {
 815			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getMergedBody().toString());
 816			shareIntent.setType("text/plain");
 817		} else {
 818			final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 819			try {
 820				shareIntent.putExtra(Intent.EXTRA_STREAM, FileBackend.getUriForFile(activity, file));
 821			} catch (SecurityException e) {
 822				Toast.makeText(activity, activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
 823				return;
 824			}
 825			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 826			String mime = message.getMimeType();
 827			if (mime == null) {
 828				mime = "*/*";
 829			}
 830			shareIntent.setType(mime);
 831		}
 832		try {
 833			activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
 834		} catch (ActivityNotFoundException e) {
 835			//This should happen only on faulty androids because normally chooser is always available
 836			Toast.makeText(activity, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
 837		}
 838	}
 839
 840	private void copyMessage(Message message) {
 841		if (activity.copyTextToClipboard(message.getMergedBody().toString(), R.string.message)) {
 842			Toast.makeText(activity, R.string.message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
 843		}
 844	}
 845
 846	private void deleteFile(Message message) {
 847		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
 848			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 849			activity.updateConversationList();
 850			updateMessages();
 851		}
 852	}
 853
 854	private void resendMessage(final Message message) {
 855		if (message.isFileOrImage()) {
 856			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 857			if (file.exists()) {
 858				final Conversation conversation = message.getConversation();
 859				final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
 860				if (!message.hasFileOnRemoteHost()
 861						&& xmppConnection != null
 862						&& !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
 863					activity.selectPresence(conversation, new OnPresenceSelected() {
 864						@Override
 865						public void onPresenceSelected() {
 866							message.setCounterpart(conversation.getNextCounterpart());
 867							activity.xmppConnectionService.resendFailedMessages(message);
 868						}
 869					});
 870					return;
 871				}
 872			} else {
 873				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 874				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 875				activity.updateConversationList();
 876				updateMessages();
 877				return;
 878			}
 879		}
 880		activity.xmppConnectionService.resendFailedMessages(message);
 881	}
 882
 883	private void copyUrl(Message message) {
 884		final String url;
 885		final int resId;
 886		if (message.isGeoUri()) {
 887			resId = R.string.location;
 888			url = message.getBody();
 889		} else if (message.hasFileOnRemoteHost()) {
 890			resId = R.string.file_url;
 891			url = message.getFileParams().url.toString();
 892		} else {
 893			url = message.getBody().trim();
 894			resId = R.string.file_url;
 895		}
 896		if (activity.copyTextToClipboard(url, resId)) {
 897			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 898					Toast.LENGTH_SHORT).show();
 899		}
 900	}
 901
 902	private void downloadFile(Message message) {
 903		activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
 904	}
 905
 906	private void cancelTransmission(Message message) {
 907		Transferable transferable = message.getTransferable();
 908		if (transferable != null) {
 909			transferable.cancel();
 910		} else if (message.getStatus() != Message.STATUS_RECEIVED) {
 911			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
 912		}
 913	}
 914
 915	private void retryDecryption(Message message) {
 916		message.setEncryption(Message.ENCRYPTION_PGP);
 917		activity.updateConversationList();
 918		updateMessages();
 919		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
 920	}
 921
 922	protected void privateMessageWith(final Jid counterpart) {
 923		if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 924			activity.xmppConnectionService.sendChatState(conversation);
 925		}
 926		this.mEditMessage.setText("");
 927		this.conversation.setNextCounterpart(counterpart);
 928		updateChatMsgHint();
 929		updateSendButton();
 930		updateEditablity();
 931	}
 932
 933	private void correctMessage(Message message) {
 934		while (message.mergeable(message.next())) {
 935			message = message.next();
 936		}
 937		this.conversation.setCorrectingMessage(message);
 938		final Editable editable = mEditMessage.getText();
 939		this.conversation.setDraftMessage(editable.toString());
 940		this.mEditMessage.setText("");
 941		this.mEditMessage.append(message.getBody());
 942
 943	}
 944
 945	protected void highlightInConference(String nick) {
 946		final Editable editable = mEditMessage.getText();
 947		String oldString = editable.toString().trim();
 948		final int pos = mEditMessage.getSelectionStart();
 949		if (oldString.isEmpty() || pos == 0) {
 950			editable.insert(0, nick + ": ");
 951		} else {
 952			final char before = editable.charAt(pos - 1);
 953			final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
 954			if (before == '\n') {
 955				editable.insert(pos, nick + ": ");
 956			} else {
 957				if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
 958					if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
 959						editable.insert(pos - 2, ", " + nick);
 960						return;
 961					}
 962				}
 963				editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
 964				if (Character.isWhitespace(after)) {
 965					mEditMessage.setSelection(mEditMessage.getSelectionStart() + 1);
 966				}
 967			}
 968		}
 969	}
 970
 971	@Override
 972	public void onStop() {
 973		super.onStop();
 974		if (activity == null || !activity.isChangingConfigurations()) {
 975			messageListAdapter.stopAudioPlayer();
 976		}
 977		if (this.conversation != null) {
 978			final String msg = mEditMessage.getText().toString();
 979			if (this.conversation.setNextMessage(msg)) {
 980				activity.xmppConnectionService.updateConversation(this.conversation);
 981			}
 982			updateChatState(this.conversation, msg);
 983		}
 984	}
 985
 986	private void updateChatState(final Conversation conversation, final String msg) {
 987		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 988		Account.State status = conversation.getAccount().getStatus();
 989		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 990			activity.xmppConnectionService.sendChatState(conversation);
 991		}
 992	}
 993
 994	public boolean reInit(Conversation conversation) {
 995		if (conversation == null) {
 996			return false;
 997		}
 998		this.activity = (ConversationActivity) getActivity();
 999		setupIme();
1000		if (this.conversation != null) {
1001			final String msg = mEditMessage.getText().toString();
1002			if (this.conversation.setNextMessage(msg)) {
1003				activity.xmppConnectionService.updateConversation(conversation);
1004			}
1005			if (this.conversation != conversation) {
1006				updateChatState(this.conversation, msg);
1007				messageListAdapter.stopAudioPlayer();
1008			}
1009			this.conversation.trim();
1010
1011		}
1012
1013		if (activity != null) {
1014			this.mSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1015		}
1016
1017		this.conversation = conversation;
1018		this.mEditMessage.setKeyboardListener(null);
1019		this.mEditMessage.setText("");
1020		this.mEditMessage.append(this.conversation.getNextMessage());
1021		this.mEditMessage.setKeyboardListener(this);
1022		messageListAdapter.updatePreferences();
1023		this.messagesView.setAdapter(messageListAdapter);
1024		updateMessages();
1025		this.conversation.messagesLoaded.set(true);
1026		synchronized (this.messageList) {
1027			final Message first = conversation.getFirstUnreadMessage();
1028			final int bottom = Math.max(0, this.messageList.size() - 1);
1029			final int pos;
1030			if (first == null) {
1031				pos = bottom;
1032			} else {
1033				int i = getIndexOf(first.getUuid(), this.messageList);
1034				pos = i < 0 ? bottom : i;
1035			}
1036			messagesView.setSelection(pos);
1037			return pos == bottom;
1038		}
1039	}
1040
1041	private void showBlockSubmenu(View view) {
1042		final Jid jid = conversation.getJid();
1043		if (jid.isDomainJid()) {
1044			BlockContactDialog.show(activity, conversation);
1045		} else {
1046			PopupMenu popupMenu = new PopupMenu(activity, view);
1047			popupMenu.inflate(R.menu.block);
1048			popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
1049				@Override
1050				public boolean onMenuItemClick(MenuItem menuItem) {
1051					Blockable blockable;
1052					switch (menuItem.getItemId()) {
1053						case R.id.block_domain:
1054							blockable = conversation.getAccount().getRoster().getContact(jid.toDomainJid());
1055							break;
1056						default:
1057							blockable = conversation;
1058					}
1059					BlockContactDialog.show(activity, blockable);
1060					return true;
1061				}
1062			});
1063			popupMenu.show();
1064		}
1065	}
1066
1067	private void updateSnackBar(final Conversation conversation) {
1068		final Account account = conversation.getAccount();
1069		final XmppConnection connection = account.getXmppConnection();
1070		final int mode = conversation.getMode();
1071		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
1072		if (account.getStatus() == Account.State.DISABLED) {
1073			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
1074		} else if (conversation.isBlocked()) {
1075			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
1076		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1077			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
1078		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1079			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
1080		} else if (mode == Conversation.MODE_MULTI
1081				&& !conversation.getMucOptions().online()
1082				&& account.getStatus() == Account.State.ONLINE) {
1083			switch (conversation.getMucOptions().getError()) {
1084				case NICK_IN_USE:
1085					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
1086					break;
1087				case NO_RESPONSE:
1088					showSnackbar(R.string.joining_conference, 0, null);
1089					break;
1090				case SERVER_NOT_FOUND:
1091					if (conversation.receivedMessagesCount() > 0) {
1092						showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
1093					} else {
1094						showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
1095					}
1096					break;
1097				case PASSWORD_REQUIRED:
1098					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
1099					break;
1100				case BANNED:
1101					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
1102					break;
1103				case MEMBERS_ONLY:
1104					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
1105					break;
1106				case KICKED:
1107					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
1108					break;
1109				case UNKNOWN:
1110					showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
1111					break;
1112				case INVALID_NICK:
1113					showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
1114				case SHUTDOWN:
1115					showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
1116					break;
1117				default:
1118					hideSnackbar();
1119					break;
1120			}
1121		} else if (account.hasPendingPgpIntent(conversation)) {
1122			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
1123		} else if (mode == Conversation.MODE_SINGLE
1124				&& conversation.smpRequested()) {
1125			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
1126		} else if (mode == Conversation.MODE_SINGLE
1127				&& conversation.hasValidOtrSession()
1128				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
1129				&& (!conversation.isOtrFingerprintVerified())) {
1130			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
1131		} else if (connection != null
1132				&& connection.getFeatures().blocking()
1133				&& conversation.countMessages() != 0
1134				&& !conversation.isBlocked()
1135				&& conversation.isWithStranger()) {
1136			showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
1137		} else {
1138			hideSnackbar();
1139		}
1140	}
1141
1142	public void updateMessages() {
1143		synchronized (this.messageList) {
1144			if (getView() == null) {
1145				return;
1146			}
1147			final ConversationActivity activity = (ConversationActivity) getActivity();
1148			if (this.conversation != null) {
1149				conversation.populateWithMessages(ConversationFragment.this.messageList);
1150				updateSnackBar(conversation);
1151				updateStatusMessages();
1152				this.messageListAdapter.notifyDataSetChanged();
1153				updateChatMsgHint();
1154				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
1155					activity.sendReadMarkerIfNecessary(conversation);
1156				}
1157				updateSendButton();
1158				updateEditablity();
1159			}
1160		}
1161	}
1162
1163	protected void messageSent() {
1164		mSendingPgpMessage.set(false);
1165		mEditMessage.setText("");
1166		if (conversation.setCorrectingMessage(null)) {
1167			mEditMessage.append(conversation.getDraftMessage());
1168			conversation.setDraftMessage(null);
1169		}
1170		if (conversation.setNextMessage(mEditMessage.getText().toString())) {
1171			activity.xmppConnectionService.updateConversation(conversation);
1172		}
1173		updateChatMsgHint();
1174		new Handler().post(new Runnable() {
1175			@Override
1176			public void run() {
1177				int size = messageList.size();
1178				messagesView.setSelection(size - 1);
1179			}
1180		});
1181	}
1182
1183	public void setFocusOnInputField() {
1184		mEditMessage.requestFocus();
1185	}
1186
1187	public void doneSendingPgpMessage() {
1188		mSendingPgpMessage.set(false);
1189	}
1190
1191	private int getSendButtonImageResource(SendButtonAction action, Presence.Status status) {
1192		switch (action) {
1193			case TEXT:
1194				switch (status) {
1195					case CHAT:
1196					case ONLINE:
1197						return R.drawable.ic_send_text_online;
1198					case AWAY:
1199						return R.drawable.ic_send_text_away;
1200					case XA:
1201					case DND:
1202						return R.drawable.ic_send_text_dnd;
1203					default:
1204						return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1205				}
1206			case RECORD_VIDEO:
1207				switch (status) {
1208					case CHAT:
1209					case ONLINE:
1210						return R.drawable.ic_send_videocam_online;
1211					case AWAY:
1212						return R.drawable.ic_send_videocam_away;
1213					case XA:
1214					case DND:
1215						return R.drawable.ic_send_videocam_dnd;
1216					default:
1217						return activity.getThemeResource(R.attr.ic_send_videocam_offline, R.drawable.ic_send_videocam_offline);
1218				}
1219			case TAKE_PHOTO:
1220				switch (status) {
1221					case CHAT:
1222					case ONLINE:
1223						return R.drawable.ic_send_photo_online;
1224					case AWAY:
1225						return R.drawable.ic_send_photo_away;
1226					case XA:
1227					case DND:
1228						return R.drawable.ic_send_photo_dnd;
1229					default:
1230						return activity.getThemeResource(R.attr.ic_send_photo_offline, R.drawable.ic_send_photo_offline);
1231				}
1232			case RECORD_VOICE:
1233				switch (status) {
1234					case CHAT:
1235					case ONLINE:
1236						return R.drawable.ic_send_voice_online;
1237					case AWAY:
1238						return R.drawable.ic_send_voice_away;
1239					case XA:
1240					case DND:
1241						return R.drawable.ic_send_voice_dnd;
1242					default:
1243						return activity.getThemeResource(R.attr.ic_send_voice_offline, R.drawable.ic_send_voice_offline);
1244				}
1245			case SEND_LOCATION:
1246				switch (status) {
1247					case CHAT:
1248					case ONLINE:
1249						return R.drawable.ic_send_location_online;
1250					case AWAY:
1251						return R.drawable.ic_send_location_away;
1252					case XA:
1253					case DND:
1254						return R.drawable.ic_send_location_dnd;
1255					default:
1256						return activity.getThemeResource(R.attr.ic_send_location_offline, R.drawable.ic_send_location_offline);
1257				}
1258			case CANCEL:
1259				switch (status) {
1260					case CHAT:
1261					case ONLINE:
1262						return R.drawable.ic_send_cancel_online;
1263					case AWAY:
1264						return R.drawable.ic_send_cancel_away;
1265					case XA:
1266					case DND:
1267						return R.drawable.ic_send_cancel_dnd;
1268					default:
1269						return activity.getThemeResource(R.attr.ic_send_cancel_offline, R.drawable.ic_send_cancel_offline);
1270				}
1271			case CHOOSE_PICTURE:
1272				switch (status) {
1273					case CHAT:
1274					case ONLINE:
1275						return R.drawable.ic_send_picture_online;
1276					case AWAY:
1277						return R.drawable.ic_send_picture_away;
1278					case XA:
1279					case DND:
1280						return R.drawable.ic_send_picture_dnd;
1281					default:
1282						return activity.getThemeResource(R.attr.ic_send_picture_offline, R.drawable.ic_send_picture_offline);
1283				}
1284		}
1285		return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1286	}
1287
1288	private void updateEditablity() {
1289		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
1290		this.mEditMessage.setFocusable(canWrite);
1291		this.mEditMessage.setFocusableInTouchMode(canWrite);
1292		this.mSendButton.setEnabled(canWrite);
1293		this.mEditMessage.setCursorVisible(canWrite);
1294	}
1295
1296	public void updateSendButton() {
1297		final Conversation c = this.conversation;
1298		final SendButtonAction action;
1299		final Presence.Status status;
1300		final String text = this.mEditMessage == null ? "" : this.mEditMessage.getText().toString();
1301		final boolean empty = text.length() == 0;
1302		final boolean conference = c.getMode() == Conversation.MODE_MULTI;
1303		if (c.getCorrectingMessage() != null && (empty || text.equals(c.getCorrectingMessage().getBody()))) {
1304			action = SendButtonAction.CANCEL;
1305		} else if (conference && !c.getAccount().httpUploadAvailable()) {
1306			if (empty && c.getNextCounterpart() != null) {
1307				action = SendButtonAction.CANCEL;
1308			} else {
1309				action = SendButtonAction.TEXT;
1310			}
1311		} else {
1312			if (empty) {
1313				if (conference && c.getNextCounterpart() != null) {
1314					action = SendButtonAction.CANCEL;
1315				} else {
1316					String setting = activity.getPreferences().getString("quick_action", activity.getResources().getString(R.string.quick_action));
1317					if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
1318						action = SendButtonAction.SEND_LOCATION;
1319					} else {
1320						if (setting.equals("recent")) {
1321							setting = activity.getPreferences().getString(ConversationActivity.RECENTLY_USED_QUICK_ACTION, SendButtonAction.TEXT.toString());
1322							action = SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
1323						} else {
1324							action = SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
1325						}
1326					}
1327				}
1328			} else {
1329				action = SendButtonAction.TEXT;
1330			}
1331		}
1332		if (activity.useSendButtonToIndicateStatus() && c.getAccount().getStatus() == Account.State.ONLINE) {
1333			if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
1334				status = Presence.Status.OFFLINE;
1335			} else if (c.getMode() == Conversation.MODE_SINGLE) {
1336				status = c.getContact().getShownStatus();
1337			} else {
1338				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
1339			}
1340		} else {
1341			status = Presence.Status.OFFLINE;
1342		}
1343		this.mSendButton.setTag(action);
1344		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
1345	}
1346
1347	protected void updateDateSeparators() {
1348		synchronized (this.messageList) {
1349			for (int i = 0; i < this.messageList.size(); ++i) {
1350				final Message current = this.messageList.get(i);
1351				if (i == 0 || !UIHelper.sameDay(this.messageList.get(i - 1).getTimeSent(), current.getTimeSent())) {
1352					this.messageList.add(i, Message.createDateSeparator(current));
1353					i++;
1354				}
1355			}
1356		}
1357	}
1358
1359	protected void updateStatusMessages() {
1360		updateDateSeparators();
1361		synchronized (this.messageList) {
1362			if (showLoadMoreMessages(conversation)) {
1363				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
1364			}
1365			if (conversation.getMode() == Conversation.MODE_SINGLE) {
1366				ChatState state = conversation.getIncomingChatState();
1367				if (state == ChatState.COMPOSING) {
1368					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
1369				} else if (state == ChatState.PAUSED) {
1370					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
1371				} else {
1372					for (int i = this.messageList.size() - 1; i >= 0; --i) {
1373						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
1374							return;
1375						} else {
1376							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
1377								this.messageList.add(i + 1,
1378										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
1379								return;
1380							}
1381						}
1382					}
1383				}
1384			} else {
1385				final MucOptions mucOptions = conversation.getMucOptions();
1386				final List<MucOptions.User> allUsers = mucOptions.getUsers();
1387				final Set<ReadByMarker> addedMarkers = new HashSet<>();
1388				ChatState state = ChatState.COMPOSING;
1389				List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
1390				if (users.size() == 0) {
1391					state = ChatState.PAUSED;
1392					users = conversation.getMucOptions().getUsersWithChatState(state, 5);
1393				}
1394				if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
1395					for (int i = this.messageList.size() - 1; i >= 0; --i) {
1396						final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
1397						final List<MucOptions.User> shownMarkers = new ArrayList<>();
1398						for (ReadByMarker marker : markersForMessage) {
1399							if (!ReadByMarker.contains(marker, addedMarkers)) {
1400								addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
1401								MucOptions.User user = mucOptions.findUser(marker);
1402								if (user != null && !users.contains(user)) {
1403									shownMarkers.add(user);
1404								}
1405							}
1406						}
1407						final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
1408						final Message statusMessage;
1409						final int size = shownMarkers.size();
1410						if (size > 1) {
1411							final String body;
1412							if (size <= 4) {
1413								body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
1414							} else {
1415								body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
1416							}
1417							statusMessage = Message.createStatusMessage(conversation, body);
1418							statusMessage.setCounterparts(shownMarkers);
1419						} else if (size == 1) {
1420							statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
1421							statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
1422							statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
1423						} else {
1424							statusMessage = null;
1425						}
1426						if (statusMessage != null) {
1427							this.messageList.add(i + 1, statusMessage);
1428						}
1429						addedMarkers.add(markerForSender);
1430						if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
1431							break;
1432						}
1433					}
1434				}
1435				if (users.size() > 0) {
1436					Message statusMessage;
1437					if (users.size() == 1) {
1438						MucOptions.User user = users.get(0);
1439						int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
1440						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
1441						statusMessage.setTrueCounterpart(user.getRealJid());
1442						statusMessage.setCounterpart(user.getFullJid());
1443					} else {
1444						int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
1445						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
1446						statusMessage.setCounterparts(users);
1447					}
1448					this.messageList.add(statusMessage);
1449				}
1450
1451			}
1452		}
1453	}
1454
1455	public void stopScrolling() {
1456		long now = SystemClock.uptimeMillis();
1457		MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
1458		messagesView.dispatchTouchEvent(cancel);
1459	}
1460
1461	private boolean showLoadMoreMessages(final Conversation c) {
1462		final boolean mam = hasMamSupport(c);
1463		final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
1464		return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
1465	}
1466
1467	private boolean hasMamSupport(final Conversation c) {
1468		if (c.getMode() == Conversation.MODE_SINGLE) {
1469			final XmppConnection connection = c.getAccount().getXmppConnection();
1470			return connection != null && connection.getFeatures().mam();
1471		} else {
1472			return c.getMucOptions().mamSupport();
1473		}
1474	}
1475
1476	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
1477		showSnackbar(message, action, clickListener, null);
1478	}
1479
1480	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
1481		snackbar.setVisibility(View.VISIBLE);
1482		snackbar.setOnClickListener(null);
1483		snackbarMessage.setText(message);
1484		snackbarMessage.setOnClickListener(null);
1485		snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
1486		if (action != 0) {
1487			snackbarAction.setText(action);
1488		}
1489		snackbarAction.setOnClickListener(clickListener);
1490		snackbarAction.setOnLongClickListener(longClickListener);
1491	}
1492
1493	protected void hideSnackbar() {
1494		snackbar.setVisibility(View.GONE);
1495	}
1496
1497	protected void sendPlainTextMessage(Message message) {
1498		ConversationActivity activity = (ConversationActivity) getActivity();
1499		activity.xmppConnectionService.sendMessage(message);
1500		messageSent();
1501	}
1502
1503	protected void sendPgpMessage(final Message message) {
1504		final ConversationActivity activity = (ConversationActivity) getActivity();
1505		final XmppConnectionService xmppService = activity.xmppConnectionService;
1506		final Contact contact = message.getConversation().getContact();
1507		if (!activity.hasPgp()) {
1508			activity.showInstallPgpDialog();
1509			return;
1510		}
1511		if (conversation.getAccount().getPgpSignature() == null) {
1512			activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1513			return;
1514		}
1515		if (!mSendingPgpMessage.compareAndSet(false, true)) {
1516			Log.d(Config.LOGTAG, "sending pgp message already in progress");
1517		}
1518		if (conversation.getMode() == Conversation.MODE_SINGLE) {
1519			if (contact.getPgpKeyId() != 0) {
1520				xmppService.getPgpEngine().hasKey(contact,
1521						new UiCallback<Contact>() {
1522
1523							@Override
1524							public void userInputRequried(PendingIntent pi,
1525							                              Contact contact) {
1526								activity.runIntent(
1527										pi,
1528										ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
1529							}
1530
1531							@Override
1532							public void success(Contact contact) {
1533								activity.encryptTextMessage(message);
1534							}
1535
1536							@Override
1537							public void error(int error, Contact contact) {
1538								activity.runOnUiThread(new Runnable() {
1539									@Override
1540									public void run() {
1541										Toast.makeText(activity,
1542												R.string.unable_to_connect_to_keychain,
1543												Toast.LENGTH_SHORT
1544										).show();
1545									}
1546								});
1547								mSendingPgpMessage.set(false);
1548							}
1549						});
1550
1551			} else {
1552				showNoPGPKeyDialog(false,
1553						new DialogInterface.OnClickListener() {
1554
1555							@Override
1556							public void onClick(DialogInterface dialog,
1557							                    int which) {
1558								conversation
1559										.setNextEncryption(Message.ENCRYPTION_NONE);
1560								xmppService.updateConversation(conversation);
1561								message.setEncryption(Message.ENCRYPTION_NONE);
1562								xmppService.sendMessage(message);
1563								messageSent();
1564							}
1565						});
1566			}
1567		} else {
1568			if (conversation.getMucOptions().pgpKeysInUse()) {
1569				if (!conversation.getMucOptions().everybodyHasKeys()) {
1570					Toast warning = Toast
1571							.makeText(getActivity(),
1572									R.string.missing_public_keys,
1573									Toast.LENGTH_LONG);
1574					warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1575					warning.show();
1576				}
1577				activity.encryptTextMessage(message);
1578			} else {
1579				showNoPGPKeyDialog(true,
1580						new DialogInterface.OnClickListener() {
1581
1582							@Override
1583							public void onClick(DialogInterface dialog,
1584							                    int which) {
1585								conversation
1586										.setNextEncryption(Message.ENCRYPTION_NONE);
1587								message.setEncryption(Message.ENCRYPTION_NONE);
1588								xmppService.updateConversation(conversation);
1589								xmppService.sendMessage(message);
1590								messageSent();
1591							}
1592						});
1593			}
1594		}
1595	}
1596
1597	public void showNoPGPKeyDialog(boolean plural,
1598	                               DialogInterface.OnClickListener listener) {
1599		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1600		builder.setIconAttribute(android.R.attr.alertDialogIcon);
1601		if (plural) {
1602			builder.setTitle(getString(R.string.no_pgp_keys));
1603			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
1604		} else {
1605			builder.setTitle(getString(R.string.no_pgp_key));
1606			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
1607		}
1608		builder.setNegativeButton(getString(R.string.cancel), null);
1609		builder.setPositiveButton(getString(R.string.send_unencrypted),
1610				listener);
1611		builder.create().show();
1612	}
1613
1614	protected void sendAxolotlMessage(final Message message) {
1615		final ConversationActivity activity = (ConversationActivity) getActivity();
1616		final XmppConnectionService xmppService = activity.xmppConnectionService;
1617		xmppService.sendMessage(message);
1618		messageSent();
1619	}
1620
1621	protected void sendOtrMessage(final Message message) {
1622		final ConversationActivity activity = (ConversationActivity) getActivity();
1623		final XmppConnectionService xmppService = activity.xmppConnectionService;
1624		activity.selectPresence(message.getConversation(),
1625				new OnPresenceSelected() {
1626
1627					@Override
1628					public void onPresenceSelected() {
1629						message.setCounterpart(conversation.getNextCounterpart());
1630						xmppService.sendMessage(message);
1631						messageSent();
1632					}
1633				});
1634	}
1635
1636	public void appendText(String text) {
1637		if (text == null) {
1638			return;
1639		}
1640		String previous = this.mEditMessage.getText().toString();
1641		if (previous.length() != 0 && !previous.endsWith(" ")) {
1642			text = " " + text;
1643		}
1644		this.mEditMessage.append(text);
1645	}
1646
1647	@Override
1648	public boolean onEnterPressed() {
1649		if (activity.enterIsSend()) {
1650			sendMessage();
1651			return true;
1652		} else {
1653			return false;
1654		}
1655	}
1656
1657	@Override
1658	public void onTypingStarted() {
1659		Account.State status = conversation.getAccount().getStatus();
1660		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1661			activity.xmppConnectionService.sendChatState(conversation);
1662		}
1663		activity.hideConversationsOverview();
1664		updateSendButton();
1665	}
1666
1667	@Override
1668	public void onTypingStopped() {
1669		Account.State status = conversation.getAccount().getStatus();
1670		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1671			activity.xmppConnectionService.sendChatState(conversation);
1672		}
1673	}
1674
1675	@Override
1676	public void onTextDeleted() {
1677		Account.State status = conversation.getAccount().getStatus();
1678		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1679			activity.xmppConnectionService.sendChatState(conversation);
1680		}
1681		updateSendButton();
1682	}
1683
1684	@Override
1685	public void onTextChanged() {
1686		if (conversation != null && conversation.getCorrectingMessage() != null) {
1687			updateSendButton();
1688		}
1689	}
1690
1691	@Override
1692	public boolean onTabPressed(boolean repeated) {
1693		if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
1694			return false;
1695		}
1696		if (repeated) {
1697			completionIndex++;
1698		} else {
1699			lastCompletionLength = 0;
1700			completionIndex = 0;
1701			final String content = mEditMessage.getText().toString();
1702			lastCompletionCursor = mEditMessage.getSelectionEnd();
1703			int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
1704			firstWord = start == 0;
1705			incomplete = content.substring(start, lastCompletionCursor);
1706		}
1707		List<String> completions = new ArrayList<>();
1708		for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
1709			String name = user.getName();
1710			if (name != null && name.startsWith(incomplete)) {
1711				completions.add(name + (firstWord ? ": " : " "));
1712			}
1713		}
1714		Collections.sort(completions);
1715		if (completions.size() > completionIndex) {
1716			String completion = completions.get(completionIndex).substring(incomplete.length());
1717			mEditMessage.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
1718			mEditMessage.getEditableText().insert(lastCompletionCursor, completion);
1719			lastCompletionLength = completion.length();
1720		} else {
1721			completionIndex = -1;
1722			mEditMessage.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
1723			lastCompletionLength = 0;
1724		}
1725		return true;
1726	}
1727
1728	@Override
1729	public void onActivityResult(int requestCode, int resultCode,
1730	                             final Intent data) {
1731		if (resultCode == Activity.RESULT_OK) {
1732			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1733				activity.getSelectedConversation().getAccount().getPgpDecryptionService().continueDecryption(data);
1734			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_TEXT) {
1735				final String body = mEditMessage.getText().toString();
1736				Message message = new Message(conversation, body, conversation.getNextEncryption());
1737				sendAxolotlMessage(message);
1738			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_MENU) {
1739				int choice = data.getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID);
1740				activity.selectPresenceToAttachFile(choice, conversation.getNextEncryption());
1741			}
1742		} else if (resultCode == Activity.RESULT_CANCELED) {
1743			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1744				// discard the message to prevent decryption being blocked
1745				conversation.getAccount().getPgpDecryptionService().giveUpCurrentDecryption();
1746			}
1747		}
1748	}
1749
1750	enum SendButtonAction {
1751		TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE, RECORD_VIDEO;
1752
1753		public static SendButtonAction valueOfOrDefault(String setting, SendButtonAction text) {
1754			try {
1755				return valueOf(setting);
1756			} catch (IllegalArgumentException e) {
1757				return TEXT;
1758			}
1759		}
1760	}
1761
1762}