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