package eu.siacs.conversations.ui; import android.app.AlertDialog; import android.app.Fragment; import android.app.PendingIntent; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentSender; import android.content.IntentSender.SendIntentException; import android.os.Bundle; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.Gravity; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.view.inputmethod.InputMethodManager; import android.widget.AbsListView; import android.widget.AbsListView.OnScrollListener; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.ImageButton; import android.widget.ListView; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.TextView.OnEditorActionListener; import android.widget.Toast; import net.java.otr4j.session.SessionStatus; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ConcurrentLinkedQueue; import eu.siacs.conversations.R; import eu.siacs.conversations.crypto.PgpEngine; import eu.siacs.conversations.entities.Account; import eu.siacs.conversations.entities.Contact; import eu.siacs.conversations.entities.Conversation; import eu.siacs.conversations.entities.Downloadable; import eu.siacs.conversations.entities.DownloadableFile; import eu.siacs.conversations.entities.DownloadablePlaceholder; import eu.siacs.conversations.entities.Message; import eu.siacs.conversations.entities.MucOptions; import eu.siacs.conversations.entities.Presences; import eu.siacs.conversations.services.XmppConnectionService; import eu.siacs.conversations.ui.EditMessage.OnEnterPressed; import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected; import eu.siacs.conversations.ui.XmppActivity.OnValueEdited; import eu.siacs.conversations.ui.adapter.MessageAdapter; import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked; import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked; import eu.siacs.conversations.xmpp.jid.Jid; public class ConversationFragment extends Fragment { protected Conversation conversation; private OnClickListener leaveMuc = new OnClickListener() { @Override public void onClick(View v) { activity.endConversation(conversation); } }; private OnClickListener joinMuc = new OnClickListener() { @Override public void onClick(View v) { activity.xmppConnectionService.joinMuc(conversation); } }; private OnClickListener enterPassword = new OnClickListener() { @Override public void onClick(View v) { MucOptions muc = conversation.getMucOptions(); String password = muc.getPassword(); if (password == null) { password = ""; } activity.quickPasswordEdit(password, new OnValueEdited() { @Override public void onValueEdited(String value) { activity.xmppConnectionService.providePasswordForMuc( conversation, value); } }); } }; protected ListView messagesView; protected List messageList = new ArrayList<>(); protected MessageAdapter messageListAdapter; protected Contact contact; private EditMessage mEditMessage; private ImageButton mSendButton; private RelativeLayout snackbar; private TextView snackbarMessage; private TextView snackbarAction; private boolean messagesLoaded = false; private OnScrollListener mOnScrollListener = new OnScrollListener() { @Override public void onScrollStateChanged(AbsListView view, int scrollState) { // TODO Auto-generated method stub } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { if (firstVisibleItem == 0 && messagesLoaded) { long timestamp = messageList.get(0).getTimeSent(); messagesLoaded = false; int size = activity.xmppConnectionService.loadMoreMessages( conversation, timestamp); messageList.clear(); messageList.addAll(conversation.getMessages()); updateStatusMessages(); messageListAdapter.notifyDataSetChanged(); if (size != 0) { messagesLoaded = true; } messagesView.setSelectionFromTop(size + 1, 0); } } }; private IntentSender askForPassphraseIntent = null; protected OnClickListener clickToDecryptListener = new OnClickListener() { @Override public void onClick(View v) { if (activity.hasPgp() && askForPassphraseIntent != null) { try { getActivity().startIntentSenderForResult( askForPassphraseIntent, ConversationActivity.REQUEST_DECRYPT_PGP, null, 0, 0, 0); } catch (SendIntentException e) { // } } } }; protected OnClickListener clickToVerify = new OnClickListener() { @Override public void onClick(View v) { if (conversation.getOtrFingerprint() != null) { Intent intent = new Intent(getActivity(), VerifyOTRActivity.class); intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT); intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString()); intent.putExtra("account", conversation.getAccount().getJid().toBareJid().toString()); startActivity(intent); } } }; private ConcurrentLinkedQueue mEncryptedMessages = new ConcurrentLinkedQueue<>(); private boolean mDecryptJobRunning = false; private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() { @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { if (actionId == EditorInfo.IME_ACTION_SEND) { InputMethodManager imm = (InputMethodManager) v.getContext() .getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(v.getWindowToken(), 0); sendMessage(); return true; } else { return false; } } }; private OnClickListener mSendButtonListener = new OnClickListener() { @Override public void onClick(View v) { sendMessage(); } }; private OnClickListener clickToMuc = new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class); intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC); intent.putExtra("uuid", conversation.getUuid()); startActivity(intent); } }; private ConversationActivity activity; private Message selectedMessage; private void sendMessage() { if (this.conversation == null) { return; } if (mEditMessage.getText().length() < 1) { if (this.conversation.getMode() == Conversation.MODE_MULTI) { conversation.setNextCounterpart(null); updateChatMsgHint(); } return; } Message message = new Message(conversation, mEditMessage.getText() .toString(), conversation.getNextEncryption(activity .forceEncryption())); if (conversation.getMode() == Conversation.MODE_MULTI) { if (conversation.getNextCounterpart() != null) { message.setCounterpart(conversation.getNextCounterpart()); message.setType(Message.TYPE_PRIVATE); conversation.setNextCounterpart(null); } } if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_OTR) { sendOtrMessage(message); } else if (conversation.getNextEncryption(activity.forceEncryption()) == Message.ENCRYPTION_PGP) { sendPgpMessage(message); } else { sendPlainTextMessage(message); } } public void updateChatMsgHint() { if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getNextCounterpart() != null) { this.mEditMessage.setHint(getString( R.string.send_private_message_to, conversation.getNextCounterpart().getResourcepart())); } else { switch (conversation.getNextEncryption(activity.forceEncryption())) { case Message.ENCRYPTION_NONE: mEditMessage .setHint(getString(R.string.send_plain_text_message)); break; case Message.ENCRYPTION_OTR: mEditMessage.setHint(getString(R.string.send_otr_message)); break; case Message.ENCRYPTION_PGP: mEditMessage.setHint(getString(R.string.send_pgp_message)); break; default: break; } } } @Override public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.fragment_conversation, container, false); mEditMessage = (EditMessage) view.findViewById(R.id.textinput); mEditMessage.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { activity.hideConversationsOverview(); } }); mEditMessage.setOnEditorActionListener(mEditorActionListener); mEditMessage.setOnEnterPressedListener(new OnEnterPressed() { @Override public void onEnterPressed() { sendMessage(); } }); mSendButton = (ImageButton) view.findViewById(R.id.textSendButton); mSendButton.setOnClickListener(this.mSendButtonListener); snackbar = (RelativeLayout) view.findViewById(R.id.snackbar); snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message); snackbarAction = (TextView) view.findViewById(R.id.snackbar_action); messagesView = (ListView) view.findViewById(R.id.messages_view); messagesView.setOnScrollListener(mOnScrollListener); messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL); messageListAdapter = new MessageAdapter( (ConversationActivity) getActivity(), this.messageList); messageListAdapter .setOnContactPictureClicked(new OnContactPictureClicked() { @Override public void onContactPictureClicked(Message message) { if (message.getStatus() <= Message.STATUS_RECEIVED) { if (message.getConversation().getMode() == Conversation.MODE_MULTI) { if (message.getCounterpart() != null) { if (!message.getCounterpart().isBareJid()) { highlightInConference(message.getCounterpart().getResourcepart()); } else { highlightInConference(message.getCounterpart().toString()); } } } else { Contact contact = message.getConversation() .getContact(); if (contact.showInRoster()) { activity.switchToContactDetails(contact); } else { activity.showAddToRosterDialog(message .getConversation()); } } } else { Account account = message.getConversation().getAccount(); Intent intent = new Intent(activity, EditAccountActivity.class); intent.putExtra("jid", account.getJid().toBareJid().toString()); startActivity(intent); } } }); messageListAdapter .setOnContactPictureLongClicked(new OnContactPictureLongClicked() { @Override public void onContactPictureLongClicked(Message message) { if (message.getStatus() <= Message.STATUS_RECEIVED) { if (message.getConversation().getMode() == Conversation.MODE_MULTI) { if (message.getCounterpart() != null) { privateMessageWith(message.getCounterpart()); } } } } }); messagesView.setAdapter(messageListAdapter); registerForContextMenu(messagesView); return view; } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo; this.selectedMessage = this.messageList.get(acmi.position); populateContextMenu(menu); } private void populateContextMenu(ContextMenu menu) { if (this.selectedMessage.getType() != Message.TYPE_STATUS) { activity.getMenuInflater().inflate(R.menu.message_context, menu); menu.setHeaderTitle(R.string.message_options); MenuItem copyText = menu.findItem(R.id.copy_text); MenuItem shareImage = menu.findItem(R.id.share_image); MenuItem sendAgain = menu.findItem(R.id.send_again); MenuItem copyUrl = menu.findItem(R.id.copy_url); MenuItem downloadImage = menu.findItem(R.id.download_image); MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission); if (this.selectedMessage.getType() != Message.TYPE_TEXT || this.selectedMessage.getDownloadable() != null) { copyText.setVisible(false); } if (this.selectedMessage.getType() != Message.TYPE_IMAGE || this.selectedMessage.getDownloadable() != null) { shareImage.setVisible(false); } if (this.selectedMessage.getStatus() != Message.STATUS_SEND_FAILED) { sendAgain.setVisible(false); } if ((this.selectedMessage.getType() != Message.TYPE_IMAGE && this.selectedMessage .getDownloadable() == null) || this.selectedMessage.getImageParams().url == null) { copyUrl.setVisible(false); } if (this.selectedMessage.getType() != Message.TYPE_TEXT || this.selectedMessage.getDownloadable() != null || !this.selectedMessage.bodyContainsDownloadable()) { downloadImage.setVisible(false); } if (this.selectedMessage.getDownloadable() == null || this.selectedMessage.getDownloadable() instanceof DownloadablePlaceholder) { cancelTransmission.setVisible(false); } } } @Override public boolean onContextItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.share_image: shareImage(selectedMessage); return true; case R.id.copy_text: copyText(selectedMessage); return true; case R.id.send_again: resendMessage(selectedMessage); return true; case R.id.copy_url: copyUrl(selectedMessage); return true; case R.id.download_image: downloadImage(selectedMessage); return true; case R.id.cancel_transmission: cancelTransmission(selectedMessage); return true; default: return super.onContextItemSelected(item); } } private void shareImage(Message message) { Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); shareIntent.putExtra(Intent.EXTRA_STREAM, activity.xmppConnectionService.getFileBackend() .getJingleFileUri(message)); shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); shareIntent.setType("image/webp"); activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with))); } private void copyText(Message message) { if (activity.copyTextToClipboard(message.getMergedBody(), R.string.message_text)) { Toast.makeText(activity, R.string.message_copied_to_clipboard, Toast.LENGTH_SHORT).show(); } } private void resendMessage(Message message) { if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) { DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message); if (!file.exists()) { Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show(); message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED)); return; } } activity.xmppConnectionService.resendFailedMessages(message); } private void copyUrl(Message message) { if (activity.copyTextToClipboard( message.getImageParams().url.toString(), R.string.image_url)) { Toast.makeText(activity, R.string.url_copied_to_clipboard, Toast.LENGTH_SHORT).show(); } } private void downloadImage(Message message) { activity.xmppConnectionService.getHttpConnectionManager() .createNewConnection(message); } private void cancelTransmission(Message message) { Downloadable downloadable = message.getDownloadable(); if (downloadable!=null) { downloadable.cancel(); } } protected void privateMessageWith(final Jid counterpart) { this.mEditMessage.setText(""); this.conversation.setNextCounterpart(counterpart); updateChatMsgHint(); } protected void highlightInConference(String nick) { String oldString = mEditMessage.getText().toString().trim(); if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) { mEditMessage.getText().insert(0, nick + ": "); } else { if (mEditMessage.getText().charAt( mEditMessage.getSelectionStart() - 1) != ' ') { nick = " " + nick; } mEditMessage.getText().insert(mEditMessage.getSelectionStart(), nick + " "); } } @Override public void onStop() { mDecryptJobRunning = false; super.onStop(); if (this.conversation != null) { this.conversation.setNextMessage(mEditMessage.getText().toString()); } } public void reInit(Conversation conversation) { if (this.conversation != null) { this.conversation.setNextMessage(mEditMessage.getText().toString()); } this.activity = (ConversationActivity) getActivity(); this.conversation = conversation; if (this.conversation.getMode() == Conversation.MODE_MULTI) { this.conversation.setNextCounterpart(null); } this.mEditMessage.setText(""); this.mEditMessage.append(this.conversation.getNextMessage()); this.messagesView.invalidate(); updateMessages(); } public void updateMessages() { if (getView() == null) { return; } hideSnackbar(); final ConversationActivity activity = (ConversationActivity) getActivity(); if (this.conversation != null) { final Contact contact = this.conversation.getContact(); if (this.conversation.isMuted()) { showSnackbar(R.string.notifications_disabled, R.string.enable, new OnClickListener() { @Override public void onClick(View v) { conversation.setMutedTill(0); activity.xmppConnectionService.databaseBackend .updateConversation(conversation); updateMessages(); } }); } else if (!contact.showInRoster() && contact .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) { showSnackbar(R.string.contact_added_you, R.string.add_back, new OnClickListener() { @Override public void onClick(View v) { activity.xmppConnectionService .createContact(contact); activity.switchToContactDetails(contact); } }); } else if (conversation.getMode() == Conversation.MODE_SINGLE) { makeFingerprintWarning(); } else if (!conversation.getMucOptions().online() && conversation.getAccount().getStatus() == Account.State.ONLINE) { int error = conversation.getMucOptions().getError(); switch (error) { case MucOptions.ERROR_NICK_IN_USE: showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc); break; case MucOptions.ERROR_ROOM_NOT_FOUND: showSnackbar(R.string.conference_not_found, R.string.leave, leaveMuc); break; case MucOptions.ERROR_PASSWORD_REQUIRED: showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword); break; case MucOptions.ERROR_BANNED: showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc); break; case MucOptions.ERROR_MEMBERS_ONLY: showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc); break; case MucOptions.KICKED_FROM_ROOM: showSnackbar(R.string.conference_kicked, R.string.join, joinMuc); break; default: break; } } for (Message message : this.conversation.getMessages()) { if (message.getEncryption() == Message.ENCRYPTION_PGP && (message.getStatus() == Message.STATUS_RECEIVED || message .getStatus() >= Message.STATUS_SEND) && message.getDownloadable() == null) { if (!mEncryptedMessages.contains(message)) { mEncryptedMessages.add(message); } } } decryptNext(); this.messageList.clear(); if (this.conversation.getMessages().size() == 0) { messagesLoaded = false; } else { this.messageList.addAll(this.conversation.getMessages()); messagesLoaded = true; updateStatusMessages(); } this.messageListAdapter.notifyDataSetChanged(); updateChatMsgHint(); if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) { activity.xmppConnectionService.markRead(conversation, true); activity.updateConversationList(); } this.updateSendButton(); } } private void decryptNext() { Message next = this.mEncryptedMessages.peek(); PgpEngine engine = activity.xmppConnectionService.getPgpEngine(); if (next != null && engine != null && !mDecryptJobRunning) { mDecryptJobRunning = true; engine.decrypt(next, new UiCallback() { @Override public void userInputRequried(PendingIntent pi, Message message) { mDecryptJobRunning = false; askForPassphraseIntent = pi.getIntentSender(); showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener); } @Override public void success(Message message) { mDecryptJobRunning = false; mEncryptedMessages.remove(); activity.xmppConnectionService.updateMessage(message); } @Override public void error(int error, Message message) { message.setEncryption(Message.ENCRYPTION_DECRYPTION_FAILED); mDecryptJobRunning = false; mEncryptedMessages.remove(); activity.xmppConnectionService.updateConversationUi(); } }); } } private void messageSent() { int size = this.messageList.size(); messagesView.setSelection(size - 1); mEditMessage.setText(""); updateChatMsgHint(); } public void updateSendButton() { Conversation c = this.conversation; if (activity.useSendButtonToIndicateStatus() && c != null && c.getAccount().getStatus() == Account.State.ONLINE) { if (c.getMode() == Conversation.MODE_SINGLE) { switch (c.getContact().getMostAvailableStatus()) { case Presences.CHAT: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_online); break; case Presences.ONLINE: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_online); break; case Presences.AWAY: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_away); break; case Presences.XA: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_away); break; case Presences.DND: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_dnd); break; default: this.mSendButton .setImageResource(R.drawable.ic_action_send_now_offline); break; } } else if (c.getMode() == Conversation.MODE_MULTI) { if (c.getMucOptions().online()) { this.mSendButton .setImageResource(R.drawable.ic_action_send_now_online); } else { this.mSendButton .setImageResource(R.drawable.ic_action_send_now_offline); } } else { this.mSendButton .setImageResource(R.drawable.ic_action_send_now_offline); } } else { this.mSendButton .setImageResource(R.drawable.ic_action_send_now_offline); } } protected void updateStatusMessages() { if (conversation.getMode() == Conversation.MODE_SINGLE) { for (int i = this.messageList.size() - 1; i >= 0; --i) { if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) { return; } else { if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) { this.messageList.add(i + 1, Message.createStatusMessage(conversation)); return; } } } } } protected void makeFingerprintWarning() { if (conversation.smpRequested()) { showSnackbar(R.string.smp_requested, R.string.verify, clickToVerify); } else if (conversation.hasValidOtrSession() && (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!conversation.isOtrFingerprintVerified())) { showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify); } } protected void showSnackbar(int message, int action, OnClickListener clickListener) { snackbar.setVisibility(View.VISIBLE); snackbar.setOnClickListener(null); snackbarMessage.setText(message); snackbarMessage.setOnClickListener(null); snackbarAction.setText(action); snackbarAction.setOnClickListener(clickListener); } protected void hideSnackbar() { snackbar.setVisibility(View.GONE); } protected void sendPlainTextMessage(Message message) { ConversationActivity activity = (ConversationActivity) getActivity(); activity.xmppConnectionService.sendMessage(message); messageSent(); } protected void sendPgpMessage(final Message message) { final ConversationActivity activity = (ConversationActivity) getActivity(); final XmppConnectionService xmppService = activity.xmppConnectionService; final Contact contact = message.getConversation().getContact(); if (activity.hasPgp()) { if (conversation.getMode() == Conversation.MODE_SINGLE) { if (contact.getPgpKeyId() != 0) { xmppService.getPgpEngine().hasKey(contact, new UiCallback() { @Override public void userInputRequried(PendingIntent pi, Contact contact) { activity.runIntent( pi, ConversationActivity.REQUEST_ENCRYPT_MESSAGE); } @Override public void success(Contact contact) { messageSent(); activity.encryptTextMessage(message); } @Override public void error(int error, Contact contact) { } }); } else { showNoPGPKeyDialog(false, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { conversation .setNextEncryption(Message.ENCRYPTION_NONE); xmppService.databaseBackend .updateConversation(conversation); message.setEncryption(Message.ENCRYPTION_NONE); xmppService.sendMessage(message); messageSent(); } }); } } else { if (conversation.getMucOptions().pgpKeysInUse()) { if (!conversation.getMucOptions().everybodyHasKeys()) { Toast warning = Toast .makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG); warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0); warning.show(); } activity.encryptTextMessage(message); messageSent(); } else { showNoPGPKeyDialog(true, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { conversation .setNextEncryption(Message.ENCRYPTION_NONE); message.setEncryption(Message.ENCRYPTION_NONE); xmppService.databaseBackend .updateConversation(conversation); xmppService.sendMessage(message); messageSent(); } }); } } } else { activity.showInstallPgpDialog(); } } public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); builder.setIconAttribute(android.R.attr.alertDialogIcon); if (plural) { builder.setTitle(getString(R.string.no_pgp_keys)); builder.setMessage(getText(R.string.contacts_have_no_pgp_keys)); } else { builder.setTitle(getString(R.string.no_pgp_key)); builder.setMessage(getText(R.string.contact_has_no_pgp_key)); } builder.setNegativeButton(getString(R.string.cancel), null); builder.setPositiveButton(getString(R.string.send_unencrypted), listener); builder.create().show(); } protected void sendOtrMessage(final Message message) { final ConversationActivity activity = (ConversationActivity) getActivity(); final XmppConnectionService xmppService = activity.xmppConnectionService; activity.selectPresence(message.getConversation(), new OnPresenceSelected() { @Override public void onPresenceSelected() { message.setCounterpart(conversation.getNextCounterpart()); xmppService.sendMessage(message); messageSent(); } }); } public void appendText(String text) { String previous = this.mEditMessage.getText().toString(); if (previous.length() != 0 && !previous.endsWith(" ")) { text = " " + text; } this.mEditMessage.append(text); } public void clearInputField() { this.mEditMessage.setText(""); } }