gt: 						if (size > 1) {
context: package eu.siacs.conversations.ui;
  
  import android.app.Activity;
  import android.app.AlertDialog;
  import android.app.Fragment;
  import android.app.PendingIntent;
  import android.content.ActivityNotFoundException;
  import android.content.Context;
  import android.content.DialogInterface;
  import android.content.Intent;
  import android.content.IntentSender.SendIntentException;
  import android.os.Bundle;
  import android.os.Handler;
  import android.os.SystemClock;
  import android.support.v13.view.inputmethod.InputConnectionCompat;
  import android.support.v13.view.inputmethod.InputContentInfoCompat;
  import android.text.Editable;
  import android.text.InputType;
  import android.util.Log;
  import android.util.Pair;
  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.MotionEvent;
  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.PopupMenu;
  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.Arrays;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  import java.util.UUID;
  import java.util.concurrent.atomic.AtomicBoolean;
  
  import eu.siacs.conversations.Config;
  import eu.siacs.conversations.R;
  import eu.siacs.conversations.entities.Account;
  import eu.siacs.conversations.entities.Blockable;
  import eu.siacs.conversations.entities.Contact;
  import eu.siacs.conversations.entities.Conversation;
  import eu.siacs.conversations.entities.DownloadableFile;
  import eu.siacs.conversations.entities.Message;
  import eu.siacs.conversations.entities.MucOptions;
  import eu.siacs.conversations.entities.Presence;
  import eu.siacs.conversations.entities.ReadByMarker;
  import eu.siacs.conversations.entities.Transferable;
  import eu.siacs.conversations.entities.TransferablePlaceholder;
  import eu.siacs.conversations.http.HttpDownloadConnection;
  import eu.siacs.conversations.persistance.FileBackend;
  import eu.siacs.conversations.services.MessageArchiveService;
  import eu.siacs.conversations.services.XmppConnectionService;
  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.ui.widget.EditMessage;
  import eu.siacs.conversations.utils.MessageUtils;
  import eu.siacs.conversations.utils.NickValidityChecker;
  import eu.siacs.conversations.utils.StylingHelper;
  import eu.siacs.conversations.utils.UIHelper;
  import eu.siacs.conversations.xmpp.XmppConnection;
  import eu.siacs.conversations.xmpp.chatstate.ChatState;
  import eu.siacs.conversations.xmpp.jid.Jid;
  
  public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  
  	final protected List<Message> messageList = new ArrayList<>();
  	protected Conversation conversation;
  	protected ListView messagesView;
  	protected MessageAdapter messageListAdapter;
  	private EditMessage mEditMessage;
  	private ImageButton mSendButton;
  	private RelativeLayout snackbar;
  	private TextView snackbarMessage;
  	private TextView snackbarAction;
  	private Toast messageLoaderToast;
  	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 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 String onValueEdited(String value) {
  					activity.xmppConnectionService.providePasswordForMuc(conversation, value);
  					return null;
  				}
  			});
  		}
  	};
  	private OnScrollListener mOnScrollListener = new OnScrollListener() {
  
  		@Override
  		public void onScrollStateChanged(AbsListView view, int scrollState) {
  			// TODO Auto-generated method stub
  
  		}
  
  		@Override
  		public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
  			synchronized (ConversationFragment.this.messageList) {
  				if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
  					long timestamp;
  					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
  						timestamp = messageList.get(1).getTimeSent();
  					} else {
  						timestamp = messageList.get(0).getTimeSent();
  					}
  					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
  						@Override
  						public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
  							if (ConversationFragment.this.conversation != conversation) {
  								conversation.messagesLoaded.set(true);
  								return;
  							}
  							activity.runOnUiThread(new Runnable() {
  								@Override
  								public void run() {
  									final int oldPosition = messagesView.getFirstVisiblePosition();
  									Message message = null;
  									int childPos;
  									for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
  										message = messageList.get(oldPosition + childPos);
  										if (message.getType() != Message.TYPE_STATUS) {
  											break;
  										}
  									}
  									final String uuid = message != null ? message.getUuid() : null;
  									View v = messagesView.getChildAt(childPos);
  									final int pxOffset = (v == null) ? 0 : v.getTop();
  									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
  									try {
  										updateStatusMessages();
  									} catch (IllegalStateException e) {
  										Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
  									}
  									messageListAdapter.notifyDataSetChanged();
  									int pos = Math.max(getIndexOf(uuid, messageList), 0);
  									messagesView.setSelectionFromTop(pos, pxOffset);
  									if (messageLoaderToast != null) {
  										messageLoaderToast.cancel();
  									}
  									conversation.messagesLoaded.set(true);
  								}
  							});
  						}
  
  						@Override
  						public void informUser(final int resId) {
  
  							activity.runOnUiThread(new Runnable() {
  								@Override
  								public void run() {
  									if (messageLoaderToast != null) {
  										messageLoaderToast.cancel();
  									}
  									if (ConversationFragment.this.conversation != conversation) {
  										return;
  									}
  									messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
  									messageLoaderToast.show();
  								}
  							});
  
  						}
  					});
  
  				}
  			}
  		}
  	};
  	protected OnClickListener clickToVerify = new OnClickListener() {
  
  		@Override
  		public void onClick(View v) {
  			activity.verifyOtrSessionDialog(conversation, v);
  		}
  	};
  	private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
  		@Override
  		public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
  			// try to get permission to read the image, if applicable
  			if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
  				try {
  					inputContentInfo.requestPermission();
  				} catch (Exception e) {
  					Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
  					Toast.makeText(
  							activity,
  							activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()),
  							Toast.LENGTH_LONG
  					).show();
  					return false;
  				}
  			}
  			if (activity.hasStoragePermission(ConversationActivity.REQUEST_ADD_EDITOR_CONTENT)) {
  				activity.attachImageToConversation(inputContentInfo.getContentUri());
  			} else {
  				activity.mPendingEditorContent = inputContentInfo.getContentUri();
  			}
  			return true;
  		}
  	};
  	private Message selectedMessage;
  	private OnClickListener mEnableAccountListener = new OnClickListener() {
  		@Override
  		public void onClick(View v) {
  			final Account account = conversation == null ? null : conversation.getAccount();
  			if (account != null) {
  				account.setOption(Account.OPTION_DISABLED, false);
  				activity.xmppConnectionService.updateAccount(account);
  			}
  		}
  	};
  	private OnClickListener mUnblockClickListener = new OnClickListener() {
  		@Override
  		public void onClick(final View v) {
  			v.post(new Runnable() {
  				@Override
  				public void run() {
  					v.setVisibility(View.INVISIBLE);
  				}
  			});
  			if (conversation.isDomainBlocked()) {
  				BlockContactDialog.show(activity, conversation);
  			} else {
  				activity.unblockConversation(conversation);
  			}
  		}
  	};
  	private OnClickListener mBlockClickListener = new OnClickListener() {
  		@Override
  		public void onClick(final View view) {
  			showBlockSubmenu(view);
  		}
  	};
  	private OnClickListener mAddBackClickListener = new OnClickListener() {
  
  		@Override
  		public void onClick(View v) {
  			final Contact contact = conversation == null ? null : conversation.getContact();
  			if (contact != null) {
  				activity.xmppConnectionService.createContact(contact);
  				activity.switchToContactDetails(contact);
  			}
  		}
  	};
  	private View.OnLongClickListener mLongPressBlockListener = new View.OnLongClickListener() {
  		@Override
  		public boolean onLongClick(View v) {
  			showBlockSubmenu(v);
  			return true;
  		}
  	};
  	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
  		@Override
  		public void onClick(View v) {
  			final Contact contact = conversation == null ? null : conversation.getContact();
  			if (contact != null) {
  				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
  						activity.xmppConnectionService.getPresenceGenerator()
  								.sendPresenceUpdatesTo(contact));
  				hideSnackbar();
  			}
  		}
  	};
  	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
  		@Override
  		public void onClick(View view) {
  			Intent intent = new Intent(activity, VerifyOTRActivity.class);
  			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
  			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
  			intent.putExtra(VerifyOTRActivity.EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
  			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
  			startActivity(intent);
  		}
  	};
  	protected OnClickListener clickToDecryptListener = new OnClickListener() {
  
  		@Override
  		public void onClick(View v) {
  			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
  			if (pendingIntent != null) {
  				try {
  					activity.startIntentSenderForResult(pendingIntent.getIntentSender(),
  							ConversationActivity.REQUEST_DECRYPT_PGP,
  							null,
  							0,
  							0,
  							0);
  				} catch (SendIntentException e) {
  					Toast.makeText(activity, R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
  					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
  				}
  			}
  			updateSnackBar(conversation);
  		}
  	};
  	private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(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);
  				if (imm.isFullscreenMode()) {
  					imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
  				}
  				sendMessage();
  				return true;
  			} else {
  				return false;
  			}
  		}
  	};
  	private OnClickListener mSendButtonListener = new OnClickListener() {
  
  		@Override
  		public void onClick(View v) {
  			Object tag = v.getTag();
  			if (tag instanceof SendButtonAction) {
  				SendButtonAction action = (SendButtonAction) tag;
  				switch (action) {
  					case TAKE_PHOTO:
  						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_TAKE_PHOTO);
  						break;
  					case RECORD_VIDEO:
  						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VIDEO);
  						break;
  					case SEND_LOCATION:
  						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_LOCATION);
  						break;
  					case RECORD_VOICE:
  						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
  						break;
  					case CHOOSE_PICTURE:
  						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
  						break;
  					case CANCEL:
  						if (conversation != null) {
  							if (conversation.setCorrectingMessage(null)) {
  								mEditMessage.setText("");
  								mEditMessage.append(conversation.getDraftMessage());
  								conversation.setDraftMessage(null);
  							} else if (conversation.getMode() == Conversation.MODE_MULTI) {
  								conversation.setNextCounterpart(null);
  							}
  							updateChatMsgHint();
  							updateSendButton();
  							updateEditablity();
  						}
  						break;
  					default:
  						sendMessage();
  				}
  			} else {
  				sendMessage();
  			}
  		}
  	};
  	private int completionIndex = 0;
  	private int lastCompletionLength = 0;
  	private String incomplete;
  	private int lastCompletionCursor;
  	private boolean firstWord = false;
  
  	private int getIndexOf(String uuid, List<Message> messages) {
  		if (uuid == null) {
  			return messages.size() - 1;
  		}
  		for (int i = 0; i < messages.size(); ++i) {
  			if (uuid.equals(messages.get(i).getUuid())) {
  				return i;
  			} else {
  				Message next = messages.get(i);
  				while (next != null && next.wasMergedIntoPrevious()) {
  					if (uuid.equals(next.getUuid())) {
  						return i;
  					}
  					next = next.next();
  				}
  
  			}
  		}
  		return -1;
  	}
  
  	public Pair<Integer, Integer> getScrollPosition() {
  		if (this.messagesView.getCount() == 0 ||
  				this.messagesView.getLastVisiblePosition() == this.messagesView.getCount() - 1) {
  			return null;
  		} else {
  			final int pos = messagesView.getFirstVisiblePosition();
  			final View view = messagesView.getChildAt(0);
  			if (view == null) {
  				return null;
  			} else {
  				return new Pair<>(pos, view.getTop());
  			}
  		}
  	}
  
  	public void setScrollPosition(Pair<Integer, Integer> scrollPosition) {
  		if (scrollPosition != null) {
  			this.messagesView.setSelectionFromTop(scrollPosition.first, scrollPosition.second);
  		}
  	}
  
  	private void sendMessage() {
  		final String body = mEditMessage.getText().toString();
  		final Conversation conversation = this.conversation;
  		if (body.length() == 0 || conversation == null) {
  			return;
  		}
  		final Message message;
  		if (conversation.getCorrectingMessage() == null) {
  			message = new Message(conversation, body, conversation.getNextEncryption());
  			if (conversation.getMode() == Conversation.MODE_MULTI) {
  				final Jid nextCounterpart = conversation.getNextCounterpart();
  				if (nextCounterpart != null) {
  					message.setCounterpart(nextCounterpart);
  					message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
  					message.setType(Message.TYPE_PRIVATE);
  				}
  			}
  		} else {
  			message = conversation.getCorrectingMessage();
  			message.setBody(body);
  			message.setEdited(message.getUuid());
  			message.setUuid(UUID.randomUUID().toString());
  		}
  		switch (message.getConversation().getNextEncryption()) {
  			case Message.ENCRYPTION_OTR:
  				sendOtrMessage(message);
  				break;
  			case Message.ENCRYPTION_PGP:
  				sendPgpMessage(message);
  				break;
  			case Message.ENCRYPTION_AXOLOTL:
  				if (!activity.trustKeysIfNeeded(ConversationActivity.REQUEST_TRUST_KEYS_TEXT)) {
  					sendAxolotlMessage(message);
  				}
  				break;
  			default:
  				sendPlainTextMessage(message);
  		}
  	}
  
  	public void updateChatMsgHint() {
  		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
  		if (conversation.getCorrectingMessage() != null) {
  			this.mEditMessage.setHint(R.string.send_corrected_message);
  		} else if (multi && conversation.getNextCounterpart() != null) {
  			this.mEditMessage.setHint(getString(
  					R.string.send_private_message_to,
  					conversation.getNextCounterpart().getResourcepart()));
  		} else if (multi && !conversation.getMucOptions().participating()) {
  			this.mEditMessage.setHint(R.string.you_are_not_participating);
  		} else {
  			this.mEditMessage.setHint(UIHelper.getMessageHint(activity, conversation));
  			getActivity().invalidateOptionsMenu();
  		}
  	}
  
  	public void setupIme() {
  		if (activity != null) {
  			if (activity.usingEnterKey() && activity.enterIsSend()) {
  				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_FLAG_MULTI_LINE));
  				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
  			} else if (activity.usingEnterKey()) {
  				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
  				mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
  			} else {
  				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
  				mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
  			}
  		}
  	}
  
  	@Override
  	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
  		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
  		view.setOnClickListener(null);
  
  		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
  		mEditMessage.setOnClickListener(new OnClickListener() {
  
  			@Override
  			public void onClick(View v) {
  				if (activity != null) {
  					activity.hideConversationsOverview();
  				}
  			}
  		});
  
  		mEditMessage.addTextChangedListener(new StylingHelper.MessageEditorStyler(mEditMessage));
  
  		mEditMessage.setOnEditorActionListener(mEditorActionListener);
  		mEditMessage.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
  
  		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(message -> {
  			final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
  			if (received) {
  				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
  					Jid user = message.getCounterpart();
  					if (user != null && !user.isBareJid()) {
  						if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
  							Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
  						}
  						highlightInConference(user.getResourcepart());
  					}
  					return;
  				} else {
  					if (!message.getContact().isSelf()) {
  						String fingerprint;
  						if (message.getEncryption() == Message.ENCRYPTION_PGP
  								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
  							fingerprint = "pgp";
  						} else {
  							fingerprint = message.getFingerprint();
  						}
  						activity.switchToContactDetails(message.getContact(), fingerprint);
  						return;
  					}
  				}
  			}
  			Account account = message.getConversation().getAccount();
  			Intent intent;
  			if (activity.manuallyChangePresence() && !received) {
  				intent = new Intent(activity, SetPresenceActivity.class);
  				intent.putExtra(SetPresenceActivity.EXTRA_ACCOUNT, account.getJid().toBareJid().toString());
  			} else {
  				intent = new Intent(activity, EditAccountActivity.class);
  				intent.putExtra("jid", account.getJid().toBareJid().toString());
  				String fingerprint;
  				if (message.getEncryption() == Message.ENCRYPTION_PGP
  						|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
  					fingerprint = "pgp";
  				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
  					fingerprint = "otr";
  				} else {
  					fingerprint = message.getFingerprint();
  				}
  				intent.putExtra("fingerprint", fingerprint);
  			}
  			startActivity(intent);
  		});
  		messageListAdapter.setOnContactPictureLongClicked(message -> {
  			if (message.getStatus() <= Message.STATUS_RECEIVED) {
  				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
  					final MucOptions mucOptions = conversation.getMucOptions();
  					if (!mucOptions.allowPm()) {
  						Toast.makeText(activity, R.string.private_messages_are_disabled, Toast.LENGTH_SHORT).show();
  						return;
  					}
  					Jid user = message.getCounterpart();
  					if (user != null && !user.isBareJid()) {
  						if (mucOptions.isUserInRoom(user)) {
  							privateMessageWith(user);
  						} else {
  							Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
  						}
  					}
  				}
  			} else {
  				activity.showQrCode();
  			}
  		});
  		messageListAdapter.setOnQuoteListener(this::quoteText);
  		messagesView.setAdapter(messageListAdapter);
  
  		registerForContextMenu(messagesView);
  
  		return view;
  	}
  
  	private void quoteText(String text) {
  		if (mEditMessage.isEnabled()) {
  			text = text.replaceAll("(\n *){2,}", "\n").replaceAll("(^|\n)", "$1> ").replaceAll("\n$", "");
  			Editable editable = mEditMessage.getEditableText();
  			int position = mEditMessage.getSelectionEnd();
  			if (position == -1) position = editable.length();
  			if (position > 0 && editable.charAt(position - 1) != '\n') {
  				editable.insert(position++, "\n");
  			}
  			editable.insert(position, text);
  			position += text.length();
  			editable.insert(position++, "\n");
  			if (position < editable.length() && editable.charAt(position) != '\n') {
  				editable.insert(position, "\n");
  			}
  			mEditMessage.setSelection(position);
  			mEditMessage.requestFocus();
  			InputMethodManager inputMethodManager = (InputMethodManager) getActivity()
  					.getSystemService(Context.INPUT_METHOD_SERVICE);
  			if (inputMethodManager != null) {
  				inputMethodManager.showSoftInput(mEditMessage, InputMethodManager.SHOW_IMPLICIT);
  			}
  		}
  	}
  
  	private void quoteMessage(Message message) {
  		quoteText(MessageUtils.prepareQuote(message));
  	}
  
  	@Override
  	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
  		synchronized (this.messageList) {
  			super.onCreateContextMenu(menu, v, menuInfo);
  			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
  			this.selectedMessage = this.messageList.get(acmi.position);
  			populateContextMenu(menu);
  		}
  	}
  
  	private void populateContextMenu(ContextMenu menu) {
  		final Message m = this.selectedMessage;
  		final Transferable t = m.getTransferable();
  		Message relevantForCorrection = m;
  		while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
  			relevantForCorrection = relevantForCorrection.next();
  		}
  		if (m.getType() != Message.TYPE_STATUS) {
  			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
  					&& m.getType() != Message.TYPE_PRIVATE
  					&& t == null;
  			final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
  					|| m.getEncryption() == Message.ENCRYPTION_PGP;
  			activity.getMenuInflater().inflate(R.menu.message_context, menu);
  			menu.setHeaderTitle(R.string.message_options);
  			MenuItem copyMessage = menu.findItem(R.id.copy_message);
  			MenuItem quoteMessage = menu.findItem(R.id.quote_message);
  			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
  			MenuItem correctMessage = menu.findItem(R.id.correct_message);
  			MenuItem shareWith = menu.findItem(R.id.share_with);
  			MenuItem sendAgain = menu.findItem(R.id.send_again);
  			MenuItem copyUrl = menu.findItem(R.id.copy_url);
  			MenuItem downloadFile = menu.findItem(R.id.download_file);
  			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
  			MenuItem deleteFile = menu.findItem(R.id.delete_file);
  			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
  			if (!treatAsFile && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
  				copyMessage.setVisible(true);
  				quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
  			}
  			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
  				retryDecryption.setVisible(true);
  			}
  			if (relevantForCorrection.getType() == Message.TYPE_TEXT
  					&& relevantForCorrection.isLastCorrectableMessage()
  					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
  				correctMessage.setVisible(true);
  			}
  			if (treatAsFile || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
  				shareWith.setVisible(true);
  			}
  			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
  				sendAgain.setVisible(true);
  			}
  			if (m.hasFileOnRemoteHost()
  					|| m.isGeoUri()
  					|| m.treatAsDownloadable()
  					|| (t != null && t instanceof HttpDownloadConnection)) {
  				copyUrl.setVisible(true);
  			}
  			if ((m.isFileOrImage() && t instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())) {
  				downloadFile.setVisible(true);
  				downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
  			}
  			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
  					|| m.getStatus() == Message.STATUS_UNSEND
  					|| m.getStatus() == Message.STATUS_OFFERED;
  			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
  				cancelTransmission.setVisible(true);
  			}
  			if (treatAsFile) {
  				String path = m.getRelativeFilePath();
  				if (path == null || !path.startsWith("/")) {
  					deleteFile.setVisible(true);
  					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
  				}
  			}
  			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
  				showErrorMessage.setVisible(true);
  			}
  		}
  	}
  
  	@Override
  	public boolean onContextItemSelected(MenuItem item) {
  		switch (item.getItemId()) {
  			case R.id.share_with:
  				shareWith(selectedMessage);
  				return true;
  			case R.id.correct_message:
  				correctMessage(selectedMessage);
  				return true;
  			case R.id.copy_message:
  				copyMessage(selectedMessage);
  				return true;
  			case R.id.quote_message:
  				quoteMessage(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_file:
  				downloadFile(selectedMessage);
  				return true;
  			case R.id.cancel_transmission:
  				cancelTransmission(selectedMessage);
  				return true;
  			case R.id.retry_decryption:
  				retryDecryption(selectedMessage);
  				return true;
  			case R.id.delete_file:
  				deleteFile(selectedMessage);
  				return true;
  			case R.id.show_error_message:
  				showErrorMessage(selectedMessage);
  				return true;
  			default:
  				return super.onContextItemSelected(item);
  		}
  	}
  
  	private void showErrorMessage(final Message message) {
  		AlertDialog.Builder builder = new AlertDialog.Builder(activity);
  		builder.setTitle(R.string.error_message);
  		builder.setMessage(message.getErrorMessage());
  		builder.setPositiveButton(R.string.confirm, null);
  		builder.create().show();
  	}
  
  	private void shareWith(Message message) {
  		Intent shareIntent = new Intent();
  		shareIntent.setAction(Intent.ACTION_SEND);
  		if (message.isGeoUri()) {
  			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
  			shareIntent.setType("text/plain");
  		} else if (!message.isFileOrImage()) {
  			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getMergedBody().toString());
  			shareIntent.setType("text/plain");
  		} else {
  			final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
  			try {
  				shareIntent.putExtra(Intent.EXTRA_STREAM, FileBackend.getUriForFile(activity, file));
  			} catch (SecurityException e) {
  				Toast.makeText(activity, activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
  				return;
  			}
  			shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
  			String mime = message.getMimeType();
  			if (mime == null) {
  				mime = "*/*";
  			}
  			shareIntent.setType(mime);
  		}
  		try {
  			activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
  		} catch (ActivityNotFoundException e) {
  			//This should happen only on faulty androids because normally chooser is always available
  			Toast.makeText(activity, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
  		}
  	}
  
  	private void copyMessage(Message message) {
  		if (activity.copyTextToClipboard(message.getMergedBody().toString(), R.string.message)) {
  			Toast.makeText(activity, R.string.message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
  		}
  	}
  
  	private void deleteFile(Message message) {
  		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
  			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
  			activity.updateConversationList();
  			updateMessages();
  		}
  	}
  
  	private void resendMessage(final Message message) {
  		if (message.isFileOrImage()) {
  			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
  			if (file.exists()) {
  				final Conversation conversation = message.getConversation();
  				final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
  				if (!message.hasFileOnRemoteHost()
  						&& xmppConnection != null
  						&& !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
  					activity.selectPresence(conversation, new OnPresenceSelected() {
  						@Override
  						public void onPresenceSelected() {
  							message.setCounterpart(conversation.getNextCounterpart());
  							activity.xmppConnectionService.resendFailedMessages(message);
  						}
  					});
  					return;
  				}
  			} else {
  				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
  				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
  				activity.updateConversationList();
  				updateMessages();
  				return;
  			}
  		}
  		activity.xmppConnectionService.resendFailedMessages(message);
  	}
  
  	private void copyUrl(Message message) {
  		final String url;
  		final int resId;
  		if (message.isGeoUri()) {
  			resId = R.string.location;
  			url = message.getBody();
  		} else if (message.hasFileOnRemoteHost()) {
  			resId = R.string.file_url;
  			url = message.getFileParams().url.toString();
  		} else {
  			url = message.getBody().trim();
  			resId = R.string.file_url;
  		}
  		if (activity.copyTextToClipboard(url, resId)) {
  			Toast.makeText(activity, R.string.url_copied_to_clipboard,
  					Toast.LENGTH_SHORT).show();
  		}
  	}
  
  	private void downloadFile(Message message) {
  		activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
  	}
  
  	private void cancelTransmission(Message message) {
  		Transferable transferable = message.getTransferable();
  		if (transferable != null) {
  			transferable.cancel();
  		} else if (message.getStatus() != Message.STATUS_RECEIVED) {
  			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
  		}
  	}
  
  	private void retryDecryption(Message message) {
  		message.setEncryption(Message.ENCRYPTION_PGP);
  		activity.updateConversationList();
  		updateMessages();
  		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
  	}
  
  	protected void privateMessageWith(final Jid counterpart) {
  		if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
  			activity.xmppConnectionService.sendChatState(conversation);
  		}
  		this.mEditMessage.setText("");
  		this.conversation.setNextCounterpart(counterpart);
  		updateChatMsgHint();
  		updateSendButton();
  		updateEditablity();
  	}
  
  	private void correctMessage(Message message) {
  		while (message.mergeable(message.next())) {
  			message = message.next();
  		}
  		this.conversation.setCorrectingMessage(message);
  		final Editable editable = mEditMessage.getText();
  		this.conversation.setDraftMessage(editable.toString());
  		this.mEditMessage.setText("");
  		this.mEditMessage.append(message.getBody());
  
  	}
  
  	protected void highlightInConference(String nick) {
  		final Editable editable = mEditMessage.getText();
  		String oldString = editable.toString().trim();
  		final int pos = mEditMessage.getSelectionStart();
  		if (oldString.isEmpty() || pos == 0) {
  			editable.insert(0, nick + ": ");
  		} else {
  			final char before = editable.charAt(pos - 1);
  			final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
  			if (before == '\n') {
  				editable.insert(pos, nick + ": ");
  			} else {
  				if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
  					if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
  						editable.insert(pos - 2, ", " + nick);
  						return;
  					}
  				}
  				editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
  				if (Character.isWhitespace(after)) {
  					mEditMessage.setSelection(mEditMessage.getSelectionStart() + 1);
  				}
  			}
  		}
  	}
  
  	@Override
  	public void onStop() {
  		super.onStop();
  		if (activity == null || !activity.isChangingConfigurations()) {
  			messageListAdapter.stopAudioPlayer();
  		}
  		if (this.conversation != null) {
  			final String msg = mEditMessage.getText().toString();
  			if (this.conversation.setNextMessage(msg)) {
  				activity.xmppConnectionService.updateConversation(this.conversation);
  			}
  			updateChatState(this.conversation, msg);
  		}
  	}
  
  	private void updateChatState(final Conversation conversation, final String msg) {
  		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
  		Account.State status = conversation.getAccount().getStatus();
  		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
  			activity.xmppConnectionService.sendChatState(conversation);
  		}
  	}
  
  	public boolean reInit(Conversation conversation) {
  		if (conversation == null) {
  			return false;
  		}
  		this.activity = (ConversationActivity) getActivity();
  		setupIme();
  		if (this.conversation != null) {
  			final String msg = mEditMessage.getText().toString();
  			if (this.conversation.setNextMessage(msg)) {
  				activity.xmppConnectionService.updateConversation(conversation);
  			}
  			if (this.conversation != conversation) {
  				updateChatState(this.conversation, msg);
  				messageListAdapter.stopAudioPlayer();
  			}
  			this.conversation.trim();
  
  		}
  
  		if (activity != null) {
  			this.mSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
  		}
  
  		this.conversation = conversation;
  		this.mEditMessage.setKeyboardListener(null);
  		this.mEditMessage.setText("");
  		this.mEditMessage.append(this.conversation.getNextMessage());
  		this.mEditMessage.setKeyboardListener(this);
  		messageListAdapter.updatePreferences();
  		this.messagesView.setAdapter(messageListAdapter);
  		updateMessages();
  		this.conversation.messagesLoaded.set(true);
  		synchronized (this.messageList) {
  			final Message first = conversation.getFirstUnreadMessage();
  			final int bottom = Math.max(0, this.messageList.size() - 1);
  			final int pos;
  			if (first == null) {
  				pos = bottom;
  			} else {
  				int i = getIndexOf(first.getUuid(), this.messageList);
  				pos = i < 0 ? bottom : i;
  			}
  			messagesView.setSelection(pos);
  			return pos == bottom;
  		}
  	}
  
  	private void showBlockSubmenu(View view) {
  		final Jid jid = conversation.getJid();
  		if (jid.isDomainJid()) {
  			BlockContactDialog.show(activity, conversation);
  		} else {
  			PopupMenu popupMenu = new PopupMenu(activity, view);
  			popupMenu.inflate(R.menu.block);
  			popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
  				@Override
  				public boolean onMenuItemClick(MenuItem menuItem) {
  					Blockable blockable;
  					switch (menuItem.getItemId()) {
  						case R.id.block_domain:
  							blockable = conversation.getAccount().getRoster().getContact(jid.toDomainJid());
  							break;
  						default:
  							blockable = conversation;
  					}
  					BlockContactDialog.show(activity, blockable);
  					return true;
  				}
  			});
  			popupMenu.show();
  		}
  	}
  
  	private void updateSnackBar(final Conversation conversation) {
  		final Account account = conversation.getAccount();
  		final XmppConnection connection = account.getXmppConnection();
  		final int mode = conversation.getMode();
  		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
  		if (account.getStatus() == Account.State.DISABLED) {
  			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
  		} else if (conversation.isBlocked()) {
  			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
  		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
  			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
  		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
  			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
  		} else if (mode == Conversation.MODE_MULTI
  				&& !conversation.getMucOptions().online()
  				&& account.getStatus() == Account.State.ONLINE) {
  			switch (conversation.getMucOptions().getError()) {
  				case NICK_IN_USE:
  					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
  					break;
  				case NO_RESPONSE:
  					showSnackbar(R.string.joining_conference, 0, null);
  					break;
  				case SERVER_NOT_FOUND:
  					if (conversation.receivedMessagesCount() > 0) {
  						showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
  					} else {
  						showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
  					}
  					break;
  				case PASSWORD_REQUIRED:
  					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
  					break;
  				case BANNED:
  					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
  					break;
  				case MEMBERS_ONLY:
  					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
  					break;
  				case KICKED:
  					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
  					break;
  				case UNKNOWN:
  					showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
  					break;
  				case INVALID_NICK:
  					showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
  				case SHUTDOWN:
  					showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
  					break;
  				default:
  					hideSnackbar();
  					break;
  			}
  		} else if (account.hasPendingPgpIntent(conversation)) {
  			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
  		} else if (mode == Conversation.MODE_SINGLE
  				&& conversation.smpRequested()) {
  			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
  		} else if (mode == Conversation.MODE_SINGLE
  				&& conversation.hasValidOtrSession()
  				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
  				&& (!conversation.isOtrFingerprintVerified())) {
  			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
  		} else if (connection != null
  				&& connection.getFeatures().blocking()
  				&& conversation.countMessages() != 0
  				&& !conversation.isBlocked()
  				&& conversation.isWithStranger()) {
  			showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
  		} else {
  			hideSnackbar();
  		}
  	}
  
  	public void updateMessages() {
  		synchronized (this.messageList) {
  			if (getView() == null) {
  				return;
  			}
  			final ConversationActivity activity = (ConversationActivity) getActivity();
  			if (this.conversation != null) {
  				conversation.populateWithMessages(ConversationFragment.this.messageList);
  				updateSnackBar(conversation);
  				updateStatusMessages();
  				this.messageListAdapter.notifyDataSetChanged();
  				updateChatMsgHint();
  				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
  					activity.sendReadMarkerIfNecessary(conversation);
  				}
  				updateSendButton();
  				updateEditablity();
  			}
  		}
  	}
  
  	protected void messageSent() {
  		mSendingPgpMessage.set(false);
  		mEditMessage.setText("");
  		if (conversation.setCorrectingMessage(null)) {
  			mEditMessage.append(conversation.getDraftMessage());
  			conversation.setDraftMessage(null);
  		}
  		if (conversation.setNextMessage(mEditMessage.getText().toString())) {
  			activity.xmppConnectionService.updateConversation(conversation);
  		}
  		updateChatMsgHint();
  		new Handler().post(new Runnable() {
  			@Override
  			public void run() {
  				int size = messageList.size();
  				messagesView.setSelection(size - 1);
  			}
  		});
  	}
  
  	public void setFocusOnInputField() {
  		mEditMessage.requestFocus();
  	}
  
  	public void doneSendingPgpMessage() {
  		mSendingPgpMessage.set(false);
  	}
  
  	private int getSendButtonImageResource(SendButtonAction action, Presence.Status status) {
  		switch (action) {
  			case TEXT:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_text_online;
  					case AWAY:
  						return R.drawable.ic_send_text_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_text_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
  				}
  			case RECORD_VIDEO:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_videocam_online;
  					case AWAY:
  						return R.drawable.ic_send_videocam_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_videocam_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_videocam_offline, R.drawable.ic_send_videocam_offline);
  				}
  			case TAKE_PHOTO:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_photo_online;
  					case AWAY:
  						return R.drawable.ic_send_photo_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_photo_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_photo_offline, R.drawable.ic_send_photo_offline);
  				}
  			case RECORD_VOICE:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_voice_online;
  					case AWAY:
  						return R.drawable.ic_send_voice_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_voice_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_voice_offline, R.drawable.ic_send_voice_offline);
  				}
  			case SEND_LOCATION:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_location_online;
  					case AWAY:
  						return R.drawable.ic_send_location_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_location_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_location_offline, R.drawable.ic_send_location_offline);
  				}
  			case CANCEL:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_cancel_online;
  					case AWAY:
  						return R.drawable.ic_send_cancel_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_cancel_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_cancel_offline, R.drawable.ic_send_cancel_offline);
  				}
  			case CHOOSE_PICTURE:
  				switch (status) {
  					case CHAT:
  					case ONLINE:
  						return R.drawable.ic_send_picture_online;
  					case AWAY:
  						return R.drawable.ic_send_picture_away;
  					case XA:
  					case DND:
  						return R.drawable.ic_send_picture_dnd;
  					default:
  						return activity.getThemeResource(R.attr.ic_send_picture_offline, R.drawable.ic_send_picture_offline);
  				}
  		}
  		return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
  	}
  
  	private void updateEditablity() {
  		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
  		this.mEditMessage.setFocusable(canWrite);
  		this.mEditMessage.setFocusableInTouchMode(canWrite);
  		this.mSendButton.setEnabled(canWrite);
  		this.mEditMessage.setCursorVisible(canWrite);
  	}
  
  	public void updateSendButton() {
  		final Conversation c = this.conversation;
  		final SendButtonAction action;
  		final Presence.Status status;
  		final String text = this.mEditMessage == null ? "" : this.mEditMessage.getText().toString();
  		final boolean empty = text.length() == 0;
  		final boolean conference = c.getMode() == Conversation.MODE_MULTI;
  		if (c.getCorrectingMessage() != null && (empty || text.equals(c.getCorrectingMessage().getBody()))) {
  			action = SendButtonAction.CANCEL;
  		} else if (conference && !c.getAccount().httpUploadAvailable()) {
  			if (empty && c.getNextCounterpart() != null) {
  				action = SendButtonAction.CANCEL;
  			} else {
  				action = SendButtonAction.TEXT;
  			}
  		} else {
  			if (empty) {
  				if (conference && c.getNextCounterpart() != null) {
  					action = SendButtonAction.CANCEL;
  				} else {
  					String setting = activity.getPreferences().getString("quick_action", activity.getResources().getString(R.string.quick_action));
  					if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
  						action = SendButtonAction.SEND_LOCATION;
  					} else {
  						if (setting.equals("recent")) {
  							setting = activity.getPreferences().getString(ConversationActivity.RECENTLY_USED_QUICK_ACTION, SendButtonAction.TEXT.toString());
  							action = SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
  						} else {
  							action = SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
  						}
  					}
  				}
  			} else {
  				action = SendButtonAction.TEXT;
  			}
  		}
  		if (activity.useSendButtonToIndicateStatus() && c.getAccount().getStatus() == Account.State.ONLINE) {
  			if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
  				status = Presence.Status.OFFLINE;
  			} else if (c.getMode() == Conversation.MODE_SINGLE) {
  				status = c.getContact().getShownStatus();
  			} else {
  				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
  			}
  		} else {
  			status = Presence.Status.OFFLINE;
  		}
  		this.mSendButton.setTag(action);
  		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
  	}
  
  	protected void updateDateSeparators() {
  		synchronized (this.messageList) {
  			for (int i = 0; i < this.messageList.size(); ++i) {
  				final Message current = this.messageList.get(i);
  				if (i == 0 || !UIHelper.sameDay(this.messageList.get(i - 1).getTimeSent(), current.getTimeSent())) {
  					this.messageList.add(i, Message.createDateSeparator(current));
  					i++;
  				}
  			}
  		}
  	}
  
  	protected void updateStatusMessages() {
  		updateDateSeparators();
  		synchronized (this.messageList) {
  			if (showLoadMoreMessages(conversation)) {
  				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
  			}
  			if (conversation.getMode() == Conversation.MODE_SINGLE) {
  				ChatState state = conversation.getIncomingChatState();
  				if (state == ChatState.COMPOSING) {
  					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
  				} else if (state == ChatState.PAUSED) {
  					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
  				} else {
  					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, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
  								return;
  							}
  						}
  					}
  				}
  			} else {
  				final MucOptions mucOptions = conversation.getMucOptions();
  				final List<MucOptions.User> allUsers = mucOptions.getUsers();
  				final Set<ReadByMarker> addedMarkers = new HashSet<>();
  				ChatState state = ChatState.COMPOSING;
  				List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
  				if (users.size() == 0) {
  					state = ChatState.PAUSED;
  					users = conversation.getMucOptions().getUsersWithChatState(state, 5);
  				}
  				if (mucOptions.isPrivateAndNonAnonymous()) {
  					for (int i = this.messageList.size() - 1; i >= 0; --i) {
  						final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
  						final List<MucOptions.User> shownMarkers = new ArrayList<>();
  						for (ReadByMarker marker : markersForMessage) {
  							if (!ReadByMarker.contains(marker, addedMarkers)) {
  								addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
  								MucOptions.User user = mucOptions.findUser(marker);
  								if (user != null && !users.contains(user)) {
  									shownMarkers.add(user);
  								}
  							}
  						}
  						final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
  						final Message statusMessage;
  						final int size = shownMarkers.size();
  