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