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