Merge pull request #600 from SamWhited/gradle

Build system and library changes (Gradle / Subtree merging)

1 files changed, 892 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
new file mode 100644
index 00000000..20eeeb30
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -0,0 +1,892 @@
+package eu.siacs.conversations.ui;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
+import net.java.otr4j.session.SessionStatus;
+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.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.utils.UIHelper;
+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.text.Editable;
+import android.text.Selection;
+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.OnScrollListener;
+import android.widget.TextView.OnEditorActionListener;
+import android.widget.AbsListView;
+
+import android.widget.AdapterView;
+import android.widget.AdapterView.AdapterContextMenuInfo;
+import android.widget.ListView;
+import android.widget.ImageButton;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class ConversationFragment extends Fragment {
+
+	protected Conversation conversation;
+	protected ListView messagesView;
+	protected LayoutInflater inflater;
+	protected List<Message> messageList = new ArrayList<Message>();
+	protected MessageAdapter messageListAdapter;
+	protected Contact contact;
+
+	protected String queuedPqpMessage = null;
+
+	private EditMessage mEditMessage;
+	private ImageButton mSendButton;
+	private String pastedText = null;
+	private RelativeLayout snackbar;
+	private TextView snackbarMessage;
+	private TextView snackbarAction;
+
+	private boolean messagesLoaded = false;
+
+	private IntentSender askForPassphraseIntent = null;
+
+	private ConcurrentLinkedQueue<Message> mEncryptedMessages = new ConcurrentLinkedQueue<Message>();
+	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();
+		}
+	};
+	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) {
+					//
+				}
+			}
+		}
+	};
+
+	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 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);
+				}
+			});
+		}
+	};
+
+	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 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.setNextPresence(null);
+				updateChatMsgHint();
+			}
+			return;
+		}
+		Message message = new Message(conversation, mEditMessage.getText()
+				.toString(), conversation.getNextEncryption(activity
+				.forceEncryption()));
+		if (conversation.getMode() == Conversation.MODE_MULTI) {
+			if (conversation.getNextPresence() != null) {
+				message.setPresence(conversation.getNextPresence());
+				message.setType(Message.TYPE_PRIVATE);
+				conversation.setNextPresence(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.getNextPresence() != null) {
+			this.mEditMessage.setHint(getString(
+					R.string.send_private_message_to,
+					conversation.getNextPresence()));
+		} 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.getPresence() != null) {
+									highlightInConference(message.getPresence());
+								} else {
+									highlightInConference(message
+											.getCounterpart());
+								}
+							} else {
+								Contact contact = message.getConversation()
+										.getContact();
+								if (contact.showInRoster()) {
+									activity.switchToContactDetails(contact);
+								} else {
+									activity.showAddToRosterDialog(message
+											.getConversation());
+								}
+							}
+						}
+					}
+				});
+		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.getPresence() != null) {
+									privateMessageWith(message.getPresence());
+								} else {
+									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);
+			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);
+			}
+		}
+	}
+
+	@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;
+		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) {
+		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);
+	}
+
+	protected void privateMessageWith(String counterpart) {
+		this.mEditMessage.setText("");
+		this.conversation.setNextPresence(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 onStart() {
+		super.onStart();
+		this.activity = (ConversationActivity) getActivity();
+		if (activity.xmppConnectionServiceBound) {
+			this.onBackendConnected();
+		}
+	}
+
+	@Override
+	public void onStop() {
+		mDecryptJobRunning = false;
+		super.onStop();
+		if (this.conversation != null) {
+			this.conversation.setNextMessage(mEditMessage.getText().toString());
+		}
+	}
+
+	public void onBackendConnected() {
+		this.activity = (ConversationActivity) getActivity();
+		this.conversation = activity.getSelectedConversation();
+		if (this.conversation == null) {
+			return;
+		}
+		String oldString = conversation.getNextMessage().trim();
+		if (this.pastedText == null) {
+			this.mEditMessage.setText(oldString);
+		} else {
+
+			if (oldString.isEmpty()) {
+				mEditMessage.setText(pastedText);
+			} else {
+				mEditMessage.setText(oldString + " " + pastedText);
+			}
+			pastedText = null;
+		}
+		int position = mEditMessage.length();
+		Editable etext = mEditMessage.getText();
+		Selection.setSelection(etext, position);
+		if (activity.isConversationsOverviewHideable()) {
+			if (!activity.shouldPaneBeOpen()) {
+				activity.hideConversationsOverview();
+				activity.openConversation(conversation);
+			}
+		}
+		if (this.conversation.getMode() == Conversation.MODE_MULTI) {
+			conversation.setNextPresence(null);
+		}
+		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);
+							}
+						});
+			}
+			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();
+			if (conversation.getMode() == Conversation.MODE_SINGLE) {
+				if (messageList.size() >= 1) {
+					makeFingerprintWarning();
+				}
+			} else {
+				if (!conversation.getMucOptions().online()
+						&& conversation.getAccount().getStatus() == Account.STATUS_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;
+					}
+				}
+			}
+			getActivity().invalidateOptionsMenu();
+			updateChatMsgHint();
+			if (!activity.shouldPaneBeOpen()) {
+				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<Message>() {
+
+				@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.STATUS_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() {
+		Set<String> knownFingerprints = conversation.getContact()
+				.getOtrFingerprints();
+		if (conversation.hasValidOtrSession()
+						&& (!conversation.isMuted())
+						&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!knownFingerprints
+							.contains(conversation.getOtrFingerprint()))) {
+			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify,
+					new OnClickListener() {
+
+						@Override
+						public void onClick(View v) {
+							if (conversation.getOtrFingerprint() != null) {
+								AlertDialog dialog = UIHelper
+										.getVerifyFingerprintDialog(
+												(ConversationActivity) getActivity(),
+												conversation, snackbar);
+								dialog.show();
+							}
+						}
+					});
+		}
+	}
+
+	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<Contact>() {
+
+								@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;
+		if (conversation.hasValidOtrSession()) {
+			activity.xmppConnectionService.sendMessage(message);
+			messageSent();
+		} else {
+			activity.selectPresence(message.getConversation(),
+					new OnPresenceSelected() {
+
+						@Override
+						public void onPresenceSelected() {
+							message.setPresence(conversation.getNextPresence());
+							xmppService.sendMessage(message);
+							messageSent();
+						}
+					});
+		}
+	}
+
+	public void setText(String text) {
+		this.pastedText = text;
+	}
+
+	public void clearInputField() {
+		this.mEditMessage.setText("");
+	}
+}