ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.content.SharedPreferences;
   7import android.content.pm.PackageManager;
   8import android.databinding.DataBindingUtil;
   9import android.net.Uri;
  10import android.os.Build;
  11import android.preference.PreferenceManager;
  12import android.provider.MediaStore;
  13import android.support.annotation.IdRes;
  14import android.support.annotation.NonNull;
  15import android.support.annotation.StringRes;
  16import android.support.v7.app.AlertDialog;
  17import android.app.Fragment;
  18import android.app.PendingIntent;
  19import android.content.ActivityNotFoundException;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import android.support.v13.view.inputmethod.InputConnectionCompat;
  28import android.support.v13.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.util.Log;
  31import android.view.ContextMenu;
  32import android.view.ContextMenu.ContextMenuInfo;
  33import android.view.Gravity;
  34import android.view.LayoutInflater;
  35import android.view.Menu;
  36import android.view.MenuInflater;
  37import android.view.MenuItem;
  38import android.view.MotionEvent;
  39import android.view.View;
  40import android.view.View.OnClickListener;
  41import android.view.ViewGroup;
  42import android.view.inputmethod.EditorInfo;
  43import android.view.inputmethod.InputMethodManager;
  44import android.widget.AbsListView;
  45import android.widget.AbsListView.OnScrollListener;
  46import android.widget.AdapterView;
  47import android.widget.AdapterView.AdapterContextMenuInfo;
  48import android.widget.CheckBox;
  49import android.widget.ListView;
  50import android.widget.PopupMenu;
  51import android.widget.TextView.OnEditorActionListener;
  52import android.widget.Toast;
  53
  54import java.util.ArrayList;
  55import java.util.Arrays;
  56import java.util.Collections;
  57import java.util.HashSet;
  58import java.util.Iterator;
  59import java.util.List;
  60import java.util.Set;
  61import java.util.UUID;
  62import java.util.concurrent.atomic.AtomicBoolean;
  63
  64import eu.siacs.conversations.Config;
  65import eu.siacs.conversations.R;
  66import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  67import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  68import eu.siacs.conversations.databinding.FragmentConversationBinding;
  69import eu.siacs.conversations.entities.Account;
  70import eu.siacs.conversations.entities.Blockable;
  71import eu.siacs.conversations.entities.Contact;
  72import eu.siacs.conversations.entities.Conversation;
  73import eu.siacs.conversations.entities.DownloadableFile;
  74import eu.siacs.conversations.entities.Message;
  75import eu.siacs.conversations.entities.MucOptions;
  76import eu.siacs.conversations.entities.Presence;
  77import eu.siacs.conversations.entities.ReadByMarker;
  78import eu.siacs.conversations.entities.Transferable;
  79import eu.siacs.conversations.entities.TransferablePlaceholder;
  80import eu.siacs.conversations.http.HttpDownloadConnection;
  81import eu.siacs.conversations.persistance.FileBackend;
  82import eu.siacs.conversations.services.MessageArchiveService;
  83import eu.siacs.conversations.services.XmppConnectionService;
  84import eu.siacs.conversations.ui.adapter.MessageAdapter;
  85import eu.siacs.conversations.ui.util.ActivityResult;
  86import eu.siacs.conversations.ui.util.AttachmentTool;
  87import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  88import eu.siacs.conversations.ui.util.PendingItem;
  89import eu.siacs.conversations.ui.util.PresenceSelector;
  90import eu.siacs.conversations.ui.util.ScrollState;
  91import eu.siacs.conversations.ui.util.SendButtonAction;
  92import eu.siacs.conversations.ui.util.SendButtonTool;
  93import eu.siacs.conversations.ui.widget.EditMessage;
  94import eu.siacs.conversations.utils.MessageUtils;
  95import eu.siacs.conversations.utils.NickValidityChecker;
  96import eu.siacs.conversations.utils.StylingHelper;
  97import eu.siacs.conversations.utils.TimeframeUtils;
  98import eu.siacs.conversations.utils.UIHelper;
  99import eu.siacs.conversations.xmpp.XmppConnection;
 100import eu.siacs.conversations.xmpp.chatstate.ChatState;
 101import rocks.xmpp.addr.Jid;
 102
 103import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 104import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 105
 106
 107public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener {
 108
 109
 110	public static final int REQUEST_SEND_MESSAGE = 0x0201;
 111	public static final int REQUEST_DECRYPT_PGP = 0x0202;
 112	public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 113	public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 114	public static final int REQUEST_TRUST_KEYS_MENU = 0x0209;
 115	public static final int REQUEST_START_DOWNLOAD = 0x0210;
 116	public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 117	public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 118	public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 119	public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 120	public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 121	public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 122	public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 123	public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 124
 125	public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 126	public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 127	public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 128	public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".take_photo_uri";
 129
 130
 131	final protected List<Message> messageList = new ArrayList<>();
 132	private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 133	private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 134	private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 135	private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 136	private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 137	private final PendingItem<Message> pendingMessage = new PendingItem<>();
 138	public Uri mPendingEditorContent = null;
 139	protected MessageAdapter messageListAdapter;
 140	private Conversation conversation;
 141	private FragmentConversationBinding binding;
 142	private Toast messageLoaderToast;
 143	private ConversationsActivity activity;
 144	private boolean reInitRequiredOnStart = true;
 145	private OnClickListener clickToMuc = new OnClickListener() {
 146
 147		@Override
 148		public void onClick(View v) {
 149			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 150			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 151			intent.putExtra("uuid", conversation.getUuid());
 152			startActivity(intent);
 153		}
 154	};
 155	private OnClickListener leaveMuc = new OnClickListener() {
 156
 157		@Override
 158		public void onClick(View v) {
 159			activity.xmppConnectionService.archiveConversation(conversation);
 160			activity.onConversationArchived(conversation);
 161		}
 162	};
 163	private OnClickListener joinMuc = new OnClickListener() {
 164
 165		@Override
 166		public void onClick(View v) {
 167			activity.xmppConnectionService.joinMuc(conversation);
 168		}
 169	};
 170	private OnClickListener enterPassword = new OnClickListener() {
 171
 172		@Override
 173		public void onClick(View v) {
 174			MucOptions muc = conversation.getMucOptions();
 175			String password = muc.getPassword();
 176			if (password == null) {
 177				password = "";
 178			}
 179			activity.quickPasswordEdit(password, value -> {
 180				activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 181				return null;
 182			});
 183		}
 184	};
 185	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 186
 187		@Override
 188		public void onScrollStateChanged(AbsListView view, int scrollState) {
 189			// TODO Auto-generated method stub
 190
 191		}
 192
 193		@Override
 194		public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 195			synchronized (ConversationFragment.this.messageList) {
 196				if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 197					long timestamp;
 198					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 199						timestamp = messageList.get(1).getTimeSent();
 200					} else {
 201						timestamp = messageList.get(0).getTimeSent();
 202					}
 203					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 204						@Override
 205						public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 206							if (ConversationFragment.this.conversation != conversation) {
 207								conversation.messagesLoaded.set(true);
 208								return;
 209							}
 210							runOnUiThread(() -> {
 211								final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 212								Message message = null;
 213								int childPos;
 214								for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 215									message = messageList.get(oldPosition + childPos);
 216									if (message.getType() != Message.TYPE_STATUS) {
 217										break;
 218									}
 219								}
 220								final String uuid = message != null ? message.getUuid() : null;
 221								View v = binding.messagesView.getChildAt(childPos);
 222								final int pxOffset = (v == null) ? 0 : v.getTop();
 223								ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 224								try {
 225									updateStatusMessages();
 226								} catch (IllegalStateException e) {
 227									Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 228								}
 229								messageListAdapter.notifyDataSetChanged();
 230								int pos = Math.max(getIndexOf(uuid, messageList), 0);
 231								binding.messagesView.setSelectionFromTop(pos, pxOffset);
 232								if (messageLoaderToast != null) {
 233									messageLoaderToast.cancel();
 234								}
 235								conversation.messagesLoaded.set(true);
 236							});
 237						}
 238
 239						@Override
 240						public void informUser(final int resId) {
 241
 242							runOnUiThread(() -> {
 243								if (messageLoaderToast != null) {
 244									messageLoaderToast.cancel();
 245								}
 246								if (ConversationFragment.this.conversation != conversation) {
 247									return;
 248								}
 249								messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 250								messageLoaderToast.show();
 251							});
 252
 253						}
 254					});
 255
 256				}
 257			}
 258		}
 259	};
 260	private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 261		@Override
 262		public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 263			// try to get permission to read the image, if applicable
 264			if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 265				try {
 266					inputContentInfo.requestPermission();
 267				} catch (Exception e) {
 268					Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 269					Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 270					).show();
 271					return false;
 272				}
 273			}
 274			if (hasStoragePermission(REQUEST_ADD_EDITOR_CONTENT)) {
 275				attachImageToConversation(inputContentInfo.getContentUri());
 276			} else {
 277				mPendingEditorContent = inputContentInfo.getContentUri();
 278			}
 279			return true;
 280		}
 281	};
 282	private Message selectedMessage;
 283	private OnClickListener mEnableAccountListener = new OnClickListener() {
 284		@Override
 285		public void onClick(View v) {
 286			final Account account = conversation == null ? null : conversation.getAccount();
 287			if (account != null) {
 288				account.setOption(Account.OPTION_DISABLED, false);
 289				activity.xmppConnectionService.updateAccount(account);
 290			}
 291		}
 292	};
 293	private OnClickListener mUnblockClickListener = new OnClickListener() {
 294		@Override
 295		public void onClick(final View v) {
 296			v.post(() -> v.setVisibility(View.INVISIBLE));
 297			if (conversation.isDomainBlocked()) {
 298				BlockContactDialog.show(activity, conversation);
 299			} else {
 300				unblockConversation(conversation);
 301			}
 302		}
 303	};
 304	private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 305	private OnClickListener mAddBackClickListener = new OnClickListener() {
 306
 307		@Override
 308		public void onClick(View v) {
 309			final Contact contact = conversation == null ? null : conversation.getContact();
 310			if (contact != null) {
 311				activity.xmppConnectionService.createContact(contact, true);
 312				activity.switchToContactDetails(contact);
 313			}
 314		}
 315	};
 316	private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 317	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 318		@Override
 319		public void onClick(View v) {
 320			final Contact contact = conversation == null ? null : conversation.getContact();
 321			if (contact != null) {
 322				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 323						activity.xmppConnectionService.getPresenceGenerator()
 324								.sendPresenceUpdatesTo(contact));
 325				hideSnackbar();
 326			}
 327		}
 328	};
 329	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 330
 331		@Override
 332		public void onClick(View v) {
 333			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 334			if (pendingIntent != null) {
 335				try {
 336					getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 337							REQUEST_DECRYPT_PGP,
 338							null,
 339							0,
 340							0,
 341							0);
 342				} catch (SendIntentException e) {
 343					Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 344					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 345				}
 346			}
 347			updateSnackBar(conversation);
 348		}
 349	};
 350	private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 351	private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 352		if (actionId == EditorInfo.IME_ACTION_SEND) {
 353			InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 354			if (imm != null && imm.isFullscreenMode()) {
 355				imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 356			}
 357			sendMessage();
 358			return true;
 359		} else {
 360			return false;
 361		}
 362	};
 363	private OnClickListener mSendButtonListener = new OnClickListener() {
 364
 365		@Override
 366		public void onClick(View v) {
 367			Object tag = v.getTag();
 368			if (tag instanceof SendButtonAction) {
 369				SendButtonAction action = (SendButtonAction) tag;
 370				switch (action) {
 371					case TAKE_PHOTO:
 372					case RECORD_VIDEO:
 373					case SEND_LOCATION:
 374					case RECORD_VOICE:
 375					case CHOOSE_PICTURE:
 376						attachFile(action.toChoice());
 377						break;
 378					case CANCEL:
 379						if (conversation != null) {
 380							if (conversation.setCorrectingMessage(null)) {
 381								binding.textinput.setText("");
 382								binding.textinput.append(conversation.getDraftMessage());
 383								conversation.setDraftMessage(null);
 384							} else if (conversation.getMode() == Conversation.MODE_MULTI) {
 385								conversation.setNextCounterpart(null);
 386							}
 387							updateChatMsgHint();
 388							updateSendButton();
 389							updateEditablity();
 390						}
 391						break;
 392					default:
 393						sendMessage();
 394				}
 395			} else {
 396				sendMessage();
 397			}
 398		}
 399	};
 400	private int completionIndex = 0;
 401	private int lastCompletionLength = 0;
 402	private String incomplete;
 403	private int lastCompletionCursor;
 404	private boolean firstWord = false;
 405	private Message mPendingDownloadableMessage;
 406
 407	private static ConversationFragment findConversationFragment(Activity activity) {
 408		Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 409		if (fragment != null && fragment instanceof ConversationFragment) {
 410			return (ConversationFragment) fragment;
 411		}
 412		fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 413		if (fragment != null && fragment instanceof ConversationFragment) {
 414			return (ConversationFragment) fragment;
 415		}
 416		return null;
 417	}
 418
 419	public static void startStopPending(Activity activity) {
 420		ConversationFragment fragment = findConversationFragment(activity);
 421		if (fragment != null) {
 422			fragment.messageListAdapter.startStopPending();
 423		}
 424	}
 425
 426	public static void downloadFile(Activity activity, Message message) {
 427		ConversationFragment fragment = findConversationFragment(activity);
 428		if (fragment != null) {
 429			fragment.startDownloadable(message);
 430		}
 431	}
 432
 433	public static void registerPendingMessage(Activity activity, Message message) {
 434		ConversationFragment fragment = findConversationFragment(activity);
 435		if (fragment != null) {
 436			fragment.pendingMessage.push(message);
 437		}
 438	}
 439
 440	public static void openPendingMessage(Activity activity) {
 441		ConversationFragment fragment = findConversationFragment(activity);
 442		if (fragment != null) {
 443			Message message = fragment.pendingMessage.pop();
 444			if (message != null) {
 445				fragment.messageListAdapter.openDownloadable(message);
 446			}
 447		}
 448	}
 449
 450	public static Conversation getConversation(Activity activity) {
 451		return getConversation(activity, R.id.secondary_fragment);
 452	}
 453
 454	private static Conversation getConversation(Activity activity, @IdRes int res) {
 455		final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 456		if (fragment != null && fragment instanceof ConversationFragment) {
 457			return ((ConversationFragment) fragment).getConversation();
 458		} else {
 459			return null;
 460		}
 461	}
 462
 463	public static Conversation getConversationReliable(Activity activity) {
 464		final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 465		if (conversation != null) {
 466			return conversation;
 467		}
 468		return getConversation(activity, R.id.main_fragment);
 469	}
 470
 471	private static boolean allGranted(int[] grantResults) {
 472		for (int grantResult : grantResults) {
 473			if (grantResult != PackageManager.PERMISSION_GRANTED) {
 474				return false;
 475			}
 476		}
 477		return true;
 478	}
 479
 480	private static String getFirstDenied(int[] grantResults, String[] permissions) {
 481		for (int i = 0; i < grantResults.length; ++i) {
 482			if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
 483				return permissions[i];
 484			}
 485		}
 486		return null;
 487	}
 488
 489	private int getIndexOf(String uuid, List<Message> messages) {
 490		if (uuid == null) {
 491			return messages.size() - 1;
 492		}
 493		for (int i = 0; i < messages.size(); ++i) {
 494			if (uuid.equals(messages.get(i).getUuid())) {
 495				return i;
 496			} else {
 497				Message next = messages.get(i);
 498				while (next != null && next.wasMergedIntoPrevious()) {
 499					if (uuid.equals(next.getUuid())) {
 500						return i;
 501					}
 502					next = next.next();
 503				}
 504
 505			}
 506		}
 507		return -1;
 508	}
 509
 510	private ScrollState getScrollPosition() {
 511		final ListView listView = this.binding.messagesView;
 512		if (listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 513			return null;
 514		} else {
 515			final int pos = listView.getFirstVisiblePosition();
 516			final View view = listView.getChildAt(0);
 517			if (view == null) {
 518				return null;
 519			} else {
 520				return new ScrollState(pos, view.getTop());
 521			}
 522		}
 523	}
 524
 525	private void setScrollPosition(ScrollState scrollPosition) {
 526		if (scrollPosition != null) {
 527			//TODO maybe this needs a 'post'
 528			this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 529		}
 530	}
 531
 532	private void attachLocationToConversation(Conversation conversation, Uri uri) {
 533		if (conversation == null) {
 534			return;
 535		}
 536		activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 537
 538			@Override
 539			public void success(Message message) {
 540
 541			}
 542
 543			@Override
 544			public void error(int errorCode, Message object) {
 545				//TODO show possible pgp error
 546			}
 547
 548			@Override
 549			public void userInputRequried(PendingIntent pi, Message object) {
 550
 551			}
 552		});
 553	}
 554
 555	private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 556		if (conversation == null) {
 557			return;
 558		}
 559		final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 560		prepareFileToast.show();
 561		activity.delegateUriPermissionsToService(uri);
 562		activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 563			@Override
 564			public void inform(final String text) {
 565				hidePrepareFileToast(prepareFileToast);
 566				runOnUiThread(() -> activity.replaceToast(text));
 567			}
 568
 569			@Override
 570			public void success(Message message) {
 571				runOnUiThread(() -> activity.hideToast());
 572				hidePrepareFileToast(prepareFileToast);
 573			}
 574
 575			@Override
 576			public void error(final int errorCode, Message message) {
 577				hidePrepareFileToast(prepareFileToast);
 578				runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 579
 580			}
 581
 582			@Override
 583			public void userInputRequried(PendingIntent pi, Message message) {
 584				hidePrepareFileToast(prepareFileToast);
 585			}
 586		});
 587	}
 588
 589	public void attachImageToConversation(Uri uri) {
 590		this.attachImageToConversation(conversation, uri);
 591	}
 592
 593	private void attachImageToConversation(Conversation conversation, Uri uri) {
 594		if (conversation == null) {
 595			return;
 596		}
 597		final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 598		prepareFileToast.show();
 599		activity.delegateUriPermissionsToService(uri);
 600		activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 601				new UiCallback<Message>() {
 602
 603					@Override
 604					public void userInputRequried(PendingIntent pi, Message object) {
 605						hidePrepareFileToast(prepareFileToast);
 606					}
 607
 608					@Override
 609					public void success(Message message) {
 610						hidePrepareFileToast(prepareFileToast);
 611					}
 612
 613					@Override
 614					public void error(final int error, Message message) {
 615						hidePrepareFileToast(prepareFileToast);
 616						activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 617					}
 618				});
 619	}
 620
 621	private void hidePrepareFileToast(final Toast prepareFileToast) {
 622		if (prepareFileToast != null && activity != null) {
 623			activity.runOnUiThread(prepareFileToast::cancel);
 624		}
 625	}
 626
 627	private void sendMessage() {
 628		final String body = this.binding.textinput.getText().toString();
 629		final Conversation conversation = this.conversation;
 630		if (body.length() == 0 || conversation == null) {
 631			return;
 632		}
 633		final Message message;
 634		if (conversation.getCorrectingMessage() == null) {
 635			message = new Message(conversation, body, conversation.getNextEncryption());
 636			if (conversation.getMode() == Conversation.MODE_MULTI) {
 637				final Jid nextCounterpart = conversation.getNextCounterpart();
 638				if (nextCounterpart != null) {
 639					message.setCounterpart(nextCounterpart);
 640					message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
 641					message.setType(Message.TYPE_PRIVATE);
 642				}
 643			}
 644		} else {
 645			message = conversation.getCorrectingMessage();
 646			message.setBody(body);
 647			message.setEdited(message.getUuid());
 648			message.setUuid(UUID.randomUUID().toString());
 649		}
 650		switch (message.getConversation().getNextEncryption()) {
 651			case Message.ENCRYPTION_PGP:
 652				sendPgpMessage(message);
 653				break;
 654			case Message.ENCRYPTION_AXOLOTL:
 655				if (!trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 656					sendMessage(message);
 657				}
 658				break;
 659			default:
 660				sendMessage(message);
 661		}
 662	}
 663
 664	protected boolean trustKeysIfNeeded(int requestCode) {
 665		return trustKeysIfNeeded(requestCode, ATTACHMENT_CHOICE_INVALID);
 666	}
 667
 668	protected boolean trustKeysIfNeeded(int requestCode, int attachmentChoice) {
 669		AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 670		final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 671		boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 672		boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 673		boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 674		boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 675		boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 676		if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted) {
 677			axolotlService.createSessionsIfNeeded(conversation);
 678			Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 679			String[] contacts = new String[targets.size()];
 680			for (int i = 0; i < contacts.length; ++i) {
 681				contacts[i] = targets.get(i).toString();
 682			}
 683			intent.putExtra("contacts", contacts);
 684			intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 685			intent.putExtra("choice", attachmentChoice);
 686			intent.putExtra("conversation", conversation.getUuid());
 687			startActivityForResult(intent, requestCode);
 688			return true;
 689		} else {
 690			return false;
 691		}
 692	}
 693
 694	public void updateChatMsgHint() {
 695		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 696		if (conversation.getCorrectingMessage() != null) {
 697			this.binding.textinput.setHint(R.string.send_corrected_message);
 698		} else if (multi && conversation.getNextCounterpart() != null) {
 699			this.binding.textinput.setHint(getString(
 700					R.string.send_private_message_to,
 701					conversation.getNextCounterpart().getResource()));
 702		} else if (multi && !conversation.getMucOptions().participating()) {
 703			this.binding.textinput.setHint(R.string.you_are_not_participating);
 704		} else {
 705			this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 706			getActivity().invalidateOptionsMenu();
 707		}
 708	}
 709
 710	public void setupIme() {
 711		this.binding.textinput.refreshIme();
 712	}
 713
 714	private void handleActivityResult(ActivityResult activityResult) {
 715		if (activityResult.resultCode == Activity.RESULT_OK) {
 716			handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 717		} else {
 718			handleNegativeActivityResult(activityResult.requestCode);
 719		}
 720	}
 721
 722	private void handlePositiveActivityResult(int requestCode, final Intent data) {
 723		switch (requestCode) {
 724			case REQUEST_TRUST_KEYS_TEXT:
 725				final String body = this.binding.textinput.getText().toString();
 726				Message message = new Message(conversation, body, conversation.getNextEncryption());
 727				sendMessage(message);
 728				break;
 729			case REQUEST_TRUST_KEYS_MENU:
 730				int choice = data.getIntExtra("choice", ATTACHMENT_CHOICE_INVALID);
 731				selectPresenceToAttachFile(choice);
 732				break;
 733			case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 734				List<Uri> imageUris = AttachmentTool.extractUriFromIntent(data);
 735				for (Iterator<Uri> i = imageUris.iterator(); i.hasNext(); i.remove()) {
 736					Log.d(Config.LOGTAG, "ConversationsActivity.onActivityResult() - attaching image to conversations. CHOOSE_IMAGE");
 737					attachImageToConversation(conversation, i.next());
 738				}
 739				break;
 740			case ATTACHMENT_CHOICE_TAKE_PHOTO:
 741				Uri takePhotoUri = pendingTakePhotoUri.pop();
 742				if (takePhotoUri != null) {
 743					attachImageToConversation(conversation, takePhotoUri);
 744				} else {
 745					Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 746				}
 747				break;
 748			case ATTACHMENT_CHOICE_CHOOSE_FILE:
 749			case ATTACHMENT_CHOICE_RECORD_VIDEO:
 750			case ATTACHMENT_CHOICE_RECORD_VOICE:
 751				final List<Uri> fileUris = AttachmentTool.extractUriFromIntent(data);
 752				String type = data.getType();
 753				final PresenceSelector.OnPresenceSelected callback = () -> {
 754					for (Iterator<Uri> i = fileUris.iterator(); i.hasNext(); i.remove()) {
 755						Log.d(Config.LOGTAG, "ConversationsActivity.onActivityResult() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 756						attachFileToConversation(conversation, i.next(), type);
 757					}
 758				};
 759				if (conversation == null || conversation.getMode() == Conversation.MODE_MULTI || FileBackend.allFilesUnderSize(getActivity(), fileUris, getMaxHttpUploadSize(conversation))) {
 760					callback.onPresenceSelected();
 761				} else {
 762					activity.selectPresence(conversation, callback);
 763				}
 764				break;
 765			case ATTACHMENT_CHOICE_LOCATION:
 766				double latitude = data.getDoubleExtra("latitude", 0);
 767				double longitude = data.getDoubleExtra("longitude", 0);
 768				Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 769				attachLocationToConversation(conversation, geo);
 770				break;
 771			case REQUEST_INVITE_TO_CONVERSATION:
 772				XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 773				if (invite != null) {
 774					if (invite.execute(activity)) {
 775						activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 776						activity.mToast.show();
 777					}
 778				}
 779				break;
 780		}
 781	}
 782
 783	private void handleNegativeActivityResult(int requestCode) {
 784		switch (requestCode) {
 785			//nothing to do for now
 786		}
 787	}
 788
 789	@Override
 790	public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 791		super.onActivityResult(requestCode, resultCode, data);
 792		ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 793		if (activity != null && activity.xmppConnectionService != null) {
 794			handleActivityResult(activityResult);
 795		} else {
 796			this.postponedActivityResult.push(activityResult);
 797		}
 798	}
 799
 800	public void unblockConversation(final Blockable conversation) {
 801		activity.xmppConnectionService.sendUnblockRequest(conversation);
 802	}
 803
 804	@Override
 805	public void onAttach(Activity activity) {
 806		super.onAttach(activity);
 807		Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 808		if (activity instanceof ConversationsActivity) {
 809			this.activity = (ConversationsActivity) activity;
 810		} else {
 811			throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 812		}
 813	}
 814
 815	@Override
 816	public void onDetach() {
 817		super.onDetach();
 818		this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 819	}
 820
 821	@Override
 822	public void onCreate(Bundle savedInstanceState) {
 823		super.onCreate(savedInstanceState);
 824		setHasOptionsMenu(true);
 825	}
 826
 827	@Override
 828	public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 829		menuInflater.inflate(R.menu.fragment_conversation, menu);
 830		final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 831		final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 832		final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 833		final MenuItem menuMute = menu.findItem(R.id.action_mute);
 834		final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 835
 836
 837		if (conversation != null) {
 838			if (conversation.getMode() == Conversation.MODE_MULTI) {
 839				menuContactDetails.setVisible(false);
 840				menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 841			} else {
 842				menuContactDetails.setVisible(!this.conversation.withSelf());
 843				menuMucDetails.setVisible(false);
 844				final XmppConnectionService service = activity.xmppConnectionService;
 845				menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 846			}
 847			if (conversation.isMuted()) {
 848				menuMute.setVisible(false);
 849			} else {
 850				menuUnmute.setVisible(false);
 851			}
 852			ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 853			ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 854		}
 855		super.onCreateOptionsMenu(menu, menuInflater);
 856	}
 857
 858	@Override
 859	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 860		this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 861		binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 862
 863		binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 864
 865		binding.textinput.setOnEditorActionListener(mEditorActionListener);
 866		binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 867
 868		binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 869
 870		binding.messagesView.setOnScrollListener(mOnScrollListener);
 871		binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 872		messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
 873		messageListAdapter.setOnContactPictureClicked(message -> {
 874			final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
 875			if (received) {
 876				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 877					Jid user = message.getCounterpart();
 878					if (user != null && !user.isBareJid()) {
 879						final MucOptions mucOptions = message.getConversation().getMucOptions();
 880						if (mucOptions.participating() || message.getConversation().getNextCounterpart() != null) {
 881							if (!mucOptions.isUserInRoom(user)) {
 882								Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
 883							}
 884							highlightInConference(user.getResource());
 885						} else {
 886							Toast.makeText(getActivity(),R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
 887						}
 888					}
 889					return;
 890				} else {
 891					if (!message.getContact().isSelf()) {
 892						String fingerprint;
 893						if (message.getEncryption() == Message.ENCRYPTION_PGP
 894								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 895							fingerprint = "pgp";
 896						} else {
 897							fingerprint = message.getFingerprint();
 898						}
 899						activity.switchToContactDetails(message.getContact(), fingerprint);
 900						return;
 901					}
 902				}
 903			}
 904			Account account = message.getConversation().getAccount();
 905			Intent intent = new Intent(activity, EditAccountActivity.class);
 906			intent.putExtra("jid", account.getJid().asBareJid().toString());
 907			String fingerprint;
 908			if (message.getEncryption() == Message.ENCRYPTION_PGP
 909					|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 910				fingerprint = "pgp";
 911			} else {
 912				fingerprint = message.getFingerprint();
 913			}
 914			intent.putExtra("fingerprint", fingerprint);
 915			startActivity(intent);
 916		});
 917		messageListAdapter.setOnContactPictureLongClicked(message -> {
 918			if (message.getStatus() <= Message.STATUS_RECEIVED) {
 919				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 920					final MucOptions mucOptions = conversation.getMucOptions();
 921					if (!mucOptions.allowPm()) {
 922						Toast.makeText(getActivity(), R.string.private_messages_are_disabled, Toast.LENGTH_SHORT).show();
 923						return;
 924					}
 925					Jid user = message.getCounterpart();
 926					if (user != null && !user.isBareJid()) {
 927						if (mucOptions.isUserInRoom(user)) {
 928							privateMessageWith(user);
 929						} else {
 930							Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
 931						}
 932					}
 933				}
 934			} else {
 935				activity.showQrCode(conversation.getAccount().getShareableUri());
 936			}
 937		});
 938		messageListAdapter.setOnQuoteListener(this::quoteText);
 939		binding.messagesView.setAdapter(messageListAdapter);
 940
 941		registerForContextMenu(binding.messagesView);
 942
 943		return binding.getRoot();
 944	}
 945
 946	private void quoteText(String text) {
 947		if (binding.textinput.isEnabled()) {
 948			text = text.replaceAll("(\n *){2,}", "\n").replaceAll("(^|\n)", "$1> ").replaceAll("\n$", "");
 949			Editable editable = binding.textinput.getEditableText();
 950			int position = binding.textinput.getSelectionEnd();
 951			if (position == -1) position = editable.length();
 952			if (position > 0 && editable.charAt(position - 1) != '\n') {
 953				editable.insert(position++, "\n");
 954			}
 955			editable.insert(position, text);
 956			position += text.length();
 957			editable.insert(position++, "\n");
 958			if (position < editable.length() && editable.charAt(position) != '\n') {
 959				editable.insert(position, "\n");
 960			}
 961			binding.textinput.setSelection(position);
 962			binding.textinput.requestFocus();
 963			InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
 964			if (inputMethodManager != null) {
 965				inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
 966			}
 967		}
 968	}
 969
 970	private static void hideSoftKeyboard(final Activity activity) {
 971		InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 972		View view = activity.getCurrentFocus();
 973		if (view != null && imm != null) {
 974			imm.hideSoftInputFromWindow(view.getWindowToken(),0);
 975		}
 976	}
 977
 978	private void quoteMessage(Message message) {
 979		quoteText(MessageUtils.prepareQuote(message));
 980	}
 981
 982	@Override
 983	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 984		synchronized (this.messageList) {
 985			super.onCreateContextMenu(menu, v, menuInfo);
 986			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 987			this.selectedMessage = this.messageList.get(acmi.position);
 988			populateContextMenu(menu);
 989		}
 990	}
 991
 992	private void populateContextMenu(ContextMenu menu) {
 993		final Message m = this.selectedMessage;
 994		final Transferable t = m.getTransferable();
 995		Message relevantForCorrection = m;
 996		while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
 997			relevantForCorrection = relevantForCorrection.next();
 998		}
 999		if (m.getType() != Message.TYPE_STATUS) {
1000			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
1001					&& m.getType() != Message.TYPE_PRIVATE
1002					&& t == null;
1003			final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1004					|| m.getEncryption() == Message.ENCRYPTION_PGP;
1005			activity.getMenuInflater().inflate(R.menu.message_context, menu);
1006			menu.setHeaderTitle(R.string.message_options);
1007			MenuItem copyMessage = menu.findItem(R.id.copy_message);
1008			MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1009			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1010			MenuItem correctMessage = menu.findItem(R.id.correct_message);
1011			MenuItem shareWith = menu.findItem(R.id.share_with);
1012			MenuItem sendAgain = menu.findItem(R.id.send_again);
1013			MenuItem copyUrl = menu.findItem(R.id.copy_url);
1014			MenuItem downloadFile = menu.findItem(R.id.download_file);
1015			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1016			MenuItem deleteFile = menu.findItem(R.id.delete_file);
1017			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1018			if (!treatAsFile && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1019				copyMessage.setVisible(true);
1020				quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
1021			}
1022			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
1023				retryDecryption.setVisible(true);
1024			}
1025			if (relevantForCorrection.getType() == Message.TYPE_TEXT
1026					&& relevantForCorrection.isLastCorrectableMessage()
1027					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
1028				correctMessage.setVisible(true);
1029			}
1030			if (treatAsFile || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1031				shareWith.setVisible(true);
1032			}
1033			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1034				sendAgain.setVisible(true);
1035			}
1036			if (m.hasFileOnRemoteHost()
1037					|| m.isGeoUri()
1038					|| m.treatAsDownloadable()
1039					|| (t != null && t instanceof HttpDownloadConnection)) {
1040				copyUrl.setVisible(true);
1041			}
1042			if ((m.isFileOrImage() && t instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())) {
1043				downloadFile.setVisible(true);
1044				downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1045			}
1046			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1047					|| m.getStatus() == Message.STATUS_UNSEND
1048					|| m.getStatus() == Message.STATUS_OFFERED;
1049			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
1050				cancelTransmission.setVisible(true);
1051			}
1052			if (treatAsFile) {
1053				String path = m.getRelativeFilePath();
1054				if (path == null || !path.startsWith("/")) {
1055					deleteFile.setVisible(true);
1056					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1057				}
1058			}
1059			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
1060				showErrorMessage.setVisible(true);
1061			}
1062		}
1063	}
1064
1065	@Override
1066	public boolean onContextItemSelected(MenuItem item) {
1067		switch (item.getItemId()) {
1068			case R.id.share_with:
1069				shareWith(selectedMessage);
1070				return true;
1071			case R.id.correct_message:
1072				correctMessage(selectedMessage);
1073				return true;
1074			case R.id.copy_message:
1075				copyMessage(selectedMessage);
1076				return true;
1077			case R.id.quote_message:
1078				quoteMessage(selectedMessage);
1079				return true;
1080			case R.id.send_again:
1081				resendMessage(selectedMessage);
1082				return true;
1083			case R.id.copy_url:
1084				copyUrl(selectedMessage);
1085				return true;
1086			case R.id.download_file:
1087				startDownloadable(selectedMessage);
1088				return true;
1089			case R.id.cancel_transmission:
1090				cancelTransmission(selectedMessage);
1091				return true;
1092			case R.id.retry_decryption:
1093				retryDecryption(selectedMessage);
1094				return true;
1095			case R.id.delete_file:
1096				deleteFile(selectedMessage);
1097				return true;
1098			case R.id.show_error_message:
1099				showErrorMessage(selectedMessage);
1100				return true;
1101			default:
1102				return super.onContextItemSelected(item);
1103		}
1104	}
1105
1106	@Override
1107	public boolean onOptionsItemSelected(final MenuItem item) {
1108		if (conversation == null) {
1109			return super.onOptionsItemSelected(item);
1110		}
1111		switch (item.getItemId()) {
1112			case R.id.encryption_choice_axolotl:
1113			case R.id.encryption_choice_pgp:
1114			case R.id.encryption_choice_none:
1115				handleEncryptionSelection(item);
1116				break;
1117			case R.id.attach_choose_picture:
1118			case R.id.attach_take_picture:
1119			case R.id.attach_record_video:
1120			case R.id.attach_choose_file:
1121			case R.id.attach_record_voice:
1122			case R.id.attach_location:
1123				handleAttachmentSelection(item);
1124				break;
1125			case R.id.action_archive:
1126				activity.xmppConnectionService.archiveConversation(conversation);
1127				activity.onConversationArchived(conversation);
1128				break;
1129			case R.id.action_contact_details:
1130				activity.switchToContactDetails(conversation.getContact());
1131				break;
1132			case R.id.action_muc_details:
1133				Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1134				intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1135				intent.putExtra("uuid", conversation.getUuid());
1136				startActivity(intent);
1137				break;
1138			case R.id.action_invite:
1139				startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1140				break;
1141			case R.id.action_clear_history:
1142				clearHistoryDialog(conversation);
1143				break;
1144			case R.id.action_mute:
1145				muteConversationDialog(conversation);
1146				break;
1147			case R.id.action_unmute:
1148				unmuteConversation(conversation);
1149				break;
1150			case R.id.action_block:
1151			case R.id.action_unblock:
1152				final Activity activity = getActivity();
1153				if (activity instanceof XmppActivity) {
1154					BlockContactDialog.show((XmppActivity) activity, conversation);
1155				}
1156				break;
1157			default:
1158				break;
1159		}
1160		return super.onOptionsItemSelected(item);
1161	}
1162
1163	private void handleAttachmentSelection(MenuItem item) {
1164		switch (item.getItemId()) {
1165			case R.id.attach_choose_picture:
1166				attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1167				break;
1168			case R.id.attach_take_picture:
1169				attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1170				break;
1171			case R.id.attach_record_video:
1172				attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1173				break;
1174			case R.id.attach_choose_file:
1175				attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1176				break;
1177			case R.id.attach_record_voice:
1178				attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1179				break;
1180			case R.id.attach_location:
1181				attachFile(ATTACHMENT_CHOICE_LOCATION);
1182				break;
1183		}
1184	}
1185
1186	private void handleEncryptionSelection(MenuItem item) {
1187		if (conversation == null) {
1188			return;
1189		}
1190		switch (item.getItemId()) {
1191			case R.id.encryption_choice_none:
1192				conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1193				item.setChecked(true);
1194				break;
1195			case R.id.encryption_choice_pgp:
1196				if (activity.hasPgp()) {
1197					if (conversation.getAccount().getPgpSignature() != null) {
1198						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1199						item.setChecked(true);
1200					} else {
1201						activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1202					}
1203				} else {
1204					activity.showInstallPgpDialog();
1205				}
1206				break;
1207			case R.id.encryption_choice_axolotl:
1208				Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1209						+ "Enabled axolotl for Contact " + conversation.getContact().getJid());
1210				conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1211				item.setChecked(true);
1212				break;
1213			default:
1214				conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1215				break;
1216		}
1217		activity.xmppConnectionService.updateConversation(conversation);
1218		updateChatMsgHint();
1219		getActivity().invalidateOptionsMenu();
1220		activity.refreshUi();
1221	}
1222
1223	public void attachFile(final int attachmentChoice) {
1224		if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1225			if (!hasStorageAndCameraPermission(attachmentChoice)) {
1226				return;
1227			}
1228		} else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1229			if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(attachmentChoice)) {
1230				return;
1231			}
1232		}
1233		try {
1234			activity.getPreferences().edit()
1235					.putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1236					.apply();
1237		} catch (IllegalArgumentException e) {
1238			//just do not save
1239		}
1240		final int encryption = conversation.getNextEncryption();
1241		final int mode = conversation.getMode();
1242		if (encryption == Message.ENCRYPTION_PGP) {
1243			if (activity.hasPgp()) {
1244				if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1245					activity.xmppConnectionService.getPgpEngine().hasKey(
1246							conversation.getContact(),
1247							new UiCallback<Contact>() {
1248
1249								@Override
1250								public void userInputRequried(PendingIntent pi, Contact contact) {
1251									startPendingIntent(pi, attachmentChoice);
1252								}
1253
1254								@Override
1255								public void success(Contact contact) {
1256									selectPresenceToAttachFile(attachmentChoice);
1257								}
1258
1259								@Override
1260								public void error(int error, Contact contact) {
1261									activity.replaceToast(getString(error));
1262								}
1263							});
1264				} else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1265					if (!conversation.getMucOptions().everybodyHasKeys()) {
1266						Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1267						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1268						warning.show();
1269					}
1270					selectPresenceToAttachFile(attachmentChoice);
1271				} else {
1272					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
1273							.findFragmentByTag("conversation");
1274					if (fragment != null) {
1275						fragment.showNoPGPKeyDialog(false, (dialog, which) -> {
1276							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1277							activity.xmppConnectionService.updateConversation(conversation);
1278							selectPresenceToAttachFile(attachmentChoice);
1279						});
1280					}
1281				}
1282			} else {
1283				activity.showInstallPgpDialog();
1284			}
1285		} else {
1286			if (encryption != Message.ENCRYPTION_AXOLOTL || !trustKeysIfNeeded(REQUEST_TRUST_KEYS_MENU, attachmentChoice)) {
1287				selectPresenceToAttachFile(attachmentChoice);
1288			}
1289		}
1290	}
1291
1292	@Override
1293	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
1294		if (grantResults.length > 0)
1295			if (allGranted(grantResults)) {
1296				if (requestCode == REQUEST_START_DOWNLOAD) {
1297					if (this.mPendingDownloadableMessage != null) {
1298						startDownloadable(this.mPendingDownloadableMessage);
1299					}
1300				} else if (requestCode == REQUEST_ADD_EDITOR_CONTENT) {
1301					if (this.mPendingEditorContent != null) {
1302						attachImageToConversation(this.mPendingEditorContent);
1303					}
1304				} else {
1305					attachFile(requestCode);
1306				}
1307			} else {
1308				@StringRes int res;
1309				if (Manifest.permission.CAMERA.equals(getFirstDenied(grantResults, permissions))) {
1310					res = R.string.no_camera_permission;
1311				} else {
1312					res = R.string.no_storage_permission;
1313				}
1314				Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1315			}
1316	}
1317
1318	public void startDownloadable(Message message) {
1319		if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(REQUEST_START_DOWNLOAD)) {
1320			this.mPendingDownloadableMessage = message;
1321			return;
1322		}
1323		Transferable transferable = message.getTransferable();
1324		if (transferable != null) {
1325			if (transferable instanceof TransferablePlaceholder && message.treatAsDownloadable()) {
1326				activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1327				return;
1328			}
1329			if (!transferable.start()) {
1330				Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1331			}
1332		} else if (message.treatAsDownloadable()) {
1333			activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1334		}
1335	}
1336
1337	@SuppressLint("InflateParams")
1338	protected void clearHistoryDialog(final Conversation conversation) {
1339		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1340		builder.setTitle(getString(R.string.clear_conversation_history));
1341		final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1342		final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1343		builder.setView(dialogView);
1344		builder.setNegativeButton(getString(R.string.cancel), null);
1345		builder.setPositiveButton(getString(R.string.delete_messages), (dialog, which) -> {
1346			this.activity.xmppConnectionService.clearConversationHistory(conversation);
1347			if (endConversationCheckBox.isChecked()) {
1348				this.activity.xmppConnectionService.archiveConversation(conversation);
1349				this.activity.onConversationArchived(conversation);
1350			} else {
1351				activity.onConversationsListItemUpdated();
1352				refresh();
1353			}
1354		});
1355		builder.create().show();
1356	}
1357
1358	protected void muteConversationDialog(final Conversation conversation) {
1359		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1360		builder.setTitle(R.string.disable_notifications);
1361		final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1362		final CharSequence[] labels = new CharSequence[durations.length];
1363		for (int i = 0; i < durations.length; ++i) {
1364			if (durations[i] == -1) {
1365				labels[i] = getString(R.string.until_further_notice);
1366			} else {
1367				labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1368			}
1369		}
1370		builder.setItems(labels, (dialog, which) -> {
1371			final long till;
1372			if (durations[which] == -1) {
1373				till = Long.MAX_VALUE;
1374			} else {
1375				till = System.currentTimeMillis() + (durations[which] * 1000);
1376			}
1377			conversation.setMutedTill(till);
1378			activity.xmppConnectionService.updateConversation(conversation);
1379			activity.onConversationsListItemUpdated();
1380			refresh();
1381			getActivity().invalidateOptionsMenu();
1382		});
1383		builder.create().show();
1384	}
1385
1386	private boolean hasStoragePermission(int requestCode) {
1387		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1388			if (activity.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
1389				requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
1390				return false;
1391			} else {
1392				return true;
1393			}
1394		} else {
1395			return true;
1396		}
1397	}
1398
1399	private boolean hasStorageAndCameraPermission(int requestCode) {
1400		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1401			List<String> missingPermissions = new ArrayList<>();
1402			if (!Config.ONLY_INTERNAL_STORAGE && activity.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
1403				missingPermissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
1404			}
1405			if (activity.checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
1406				missingPermissions.add(Manifest.permission.CAMERA);
1407			}
1408			if (missingPermissions.size() == 0) {
1409				return true;
1410			} else {
1411				requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1412				return false;
1413			}
1414		} else {
1415			return true;
1416		}
1417	}
1418
1419	public void unmuteConversation(final Conversation conversation) {
1420		conversation.setMutedTill(0);
1421		this.activity.xmppConnectionService.updateConversation(conversation);
1422		this.activity.onConversationsListItemUpdated();
1423		refresh();
1424		getActivity().invalidateOptionsMenu();
1425	}
1426
1427	protected void selectPresenceToAttachFile(final int attachmentChoice) {
1428		final Account account = conversation.getAccount();
1429		final PresenceSelector.OnPresenceSelected callback = () -> {
1430			Intent intent = new Intent();
1431			boolean chooser = false;
1432			String fallbackPackageId = null;
1433			switch (attachmentChoice) {
1434				case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1435					intent.setAction(Intent.ACTION_GET_CONTENT);
1436					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1437						intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1438					}
1439					intent.setType("image/*");
1440					chooser = true;
1441					break;
1442				case ATTACHMENT_CHOICE_RECORD_VIDEO:
1443					intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1444					break;
1445				case ATTACHMENT_CHOICE_TAKE_PHOTO:
1446					final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1447					pendingTakePhotoUri.push(uri);
1448					intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1449					intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1450					intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1451					intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1452					break;
1453				case ATTACHMENT_CHOICE_CHOOSE_FILE:
1454					chooser = true;
1455					intent.setType("*/*");
1456					intent.addCategory(Intent.CATEGORY_OPENABLE);
1457					intent.setAction(Intent.ACTION_GET_CONTENT);
1458					break;
1459				case ATTACHMENT_CHOICE_RECORD_VOICE:
1460					intent.setAction(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
1461					fallbackPackageId = "eu.siacs.conversations.voicerecorder";
1462					break;
1463				case ATTACHMENT_CHOICE_LOCATION:
1464					intent.setAction("eu.siacs.conversations.location.request");
1465					fallbackPackageId = "eu.siacs.conversations.sharelocation";
1466					break;
1467			}
1468			if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1469				if (chooser) {
1470					startActivityForResult(
1471							Intent.createChooser(intent, getString(R.string.perform_action_with)),
1472							attachmentChoice);
1473				} else {
1474					startActivityForResult(intent, attachmentChoice);
1475				}
1476			} else if (fallbackPackageId != null) {
1477				startActivity(getInstallApkIntent(fallbackPackageId));
1478			}
1479		};
1480		if (account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) {
1481			conversation.setNextCounterpart(null);
1482			callback.onPresenceSelected();
1483		} else {
1484			activity.selectPresence(conversation, callback);
1485		}
1486	}
1487
1488	private Intent getInstallApkIntent(final String packageId) {
1489		Intent intent = new Intent(Intent.ACTION_VIEW);
1490		intent.setData(Uri.parse("market://details?id=" + packageId));
1491		if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1492			return intent;
1493		} else {
1494			intent.setData(Uri.parse("http://play.google.com/store/apps/details?id=" + packageId));
1495			return intent;
1496		}
1497	}
1498
1499	@Override
1500	public void onResume() {
1501		new Handler().post(() -> {
1502			final Activity activity = getActivity();
1503			if (activity == null) {
1504				return;
1505			}
1506			final PackageManager packageManager = activity.getPackageManager();
1507			ConversationMenuConfigurator.updateAttachmentAvailability(packageManager);
1508			getActivity().invalidateOptionsMenu();
1509		});
1510		super.onResume();
1511		if (activity != null && this.conversation != null) {
1512			activity.onConversationRead(this.conversation);
1513		}
1514	}
1515
1516	private void showErrorMessage(final Message message) {
1517		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1518		builder.setTitle(R.string.error_message);
1519		builder.setMessage(message.getErrorMessage());
1520		builder.setPositiveButton(R.string.confirm, null);
1521		builder.create().show();
1522	}
1523
1524	private void shareWith(Message message) {
1525		Intent shareIntent = new Intent();
1526		shareIntent.setAction(Intent.ACTION_SEND);
1527		if (message.isGeoUri()) {
1528			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
1529			shareIntent.setType("text/plain");
1530		} else if (!message.isFileOrImage()) {
1531			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getMergedBody().toString());
1532			shareIntent.setType("text/plain");
1533		} else {
1534			final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1535			try {
1536				shareIntent.putExtra(Intent.EXTRA_STREAM, FileBackend.getUriForFile(getActivity(), file));
1537			} catch (SecurityException e) {
1538				Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
1539				return;
1540			}
1541			shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1542			String mime = message.getMimeType();
1543			if (mime == null) {
1544				mime = "*/*";
1545			}
1546			shareIntent.setType(mime);
1547		}
1548		try {
1549			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
1550		} catch (ActivityNotFoundException e) {
1551			//This should happen only on faulty androids because normally chooser is always available
1552			Toast.makeText(getActivity(), R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
1553		}
1554	}
1555
1556	private void copyMessage(Message message) {
1557		if (activity.copyTextToClipboard(message.getMergedBody().toString(), R.string.message)) {
1558			Toast.makeText(getActivity(), R.string.message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1559		}
1560	}
1561
1562	private void deleteFile(Message message) {
1563		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1564			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1565			activity.onConversationsListItemUpdated();
1566			refresh();
1567		}
1568	}
1569
1570	private void resendMessage(final Message message) {
1571		if (message.isFileOrImage()) {
1572			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1573			if (file.exists()) {
1574				final Conversation conversation = message.getConversation();
1575				final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1576				if (!message.hasFileOnRemoteHost()
1577						&& xmppConnection != null
1578						&& !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1579					activity.selectPresence(conversation, () -> {
1580						message.setCounterpart(conversation.getNextCounterpart());
1581						activity.xmppConnectionService.resendFailedMessages(message);
1582						new Handler().post(() -> {
1583							int size = messageList.size();
1584							this.binding.messagesView.setSelection(size - 1);
1585						});
1586					});
1587					return;
1588				}
1589			} else {
1590				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1591				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1592				activity.onConversationsListItemUpdated();
1593				refresh();
1594				return;
1595			}
1596		}
1597		activity.xmppConnectionService.resendFailedMessages(message);
1598		new Handler().post(() -> {
1599			int size = messageList.size();
1600			this.binding.messagesView.setSelection(size - 1);
1601		});
1602	}
1603
1604	private void copyUrl(Message message) {
1605		final String url;
1606		final int resId;
1607		if (message.isGeoUri()) {
1608			resId = R.string.location;
1609			url = message.getBody();
1610		} else if (message.hasFileOnRemoteHost()) {
1611			resId = R.string.file_url;
1612			url = message.getFileParams().url.toString();
1613		} else {
1614			url = message.getBody().trim();
1615			resId = R.string.file_url;
1616		}
1617		if (activity.copyTextToClipboard(url, resId)) {
1618			Toast.makeText(getActivity(), R.string.url_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1619		}
1620	}
1621
1622	private void cancelTransmission(Message message) {
1623		Transferable transferable = message.getTransferable();
1624		if (transferable != null) {
1625			transferable.cancel();
1626		} else if (message.getStatus() != Message.STATUS_RECEIVED) {
1627			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
1628		}
1629	}
1630
1631	private void retryDecryption(Message message) {
1632		message.setEncryption(Message.ENCRYPTION_PGP);
1633		activity.onConversationsListItemUpdated();
1634		refresh();
1635		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1636	}
1637
1638	private void privateMessageWith(final Jid counterpart) {
1639		if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1640			activity.xmppConnectionService.sendChatState(conversation);
1641		}
1642		this.binding.textinput.setText("");
1643		this.conversation.setNextCounterpart(counterpart);
1644		updateChatMsgHint();
1645		updateSendButton();
1646		updateEditablity();
1647	}
1648
1649	private void correctMessage(Message message) {
1650		while (message.mergeable(message.next())) {
1651			message = message.next();
1652		}
1653		this.conversation.setCorrectingMessage(message);
1654		final Editable editable = binding.textinput.getText();
1655		this.conversation.setDraftMessage(editable.toString());
1656		this.binding.textinput.setText("");
1657		this.binding.textinput.append(message.getBody());
1658
1659	}
1660
1661	private void highlightInConference(String nick) {
1662		final Editable editable = this.binding.textinput.getText();
1663		String oldString = editable.toString().trim();
1664		final int pos = this.binding.textinput.getSelectionStart();
1665		if (oldString.isEmpty() || pos == 0) {
1666			editable.insert(0, nick + ": ");
1667		} else {
1668			final char before = editable.charAt(pos - 1);
1669			final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1670			if (before == '\n') {
1671				editable.insert(pos, nick + ": ");
1672			} else {
1673				if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1674					if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1675						editable.insert(pos - 2, ", " + nick);
1676						return;
1677					}
1678				}
1679				editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1680				if (Character.isWhitespace(after)) {
1681					this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1682				}
1683			}
1684		}
1685	}
1686
1687	@Override
1688	public void onSaveInstanceState(Bundle outState) {
1689		super.onSaveInstanceState(outState);
1690		if (conversation != null) {
1691			outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1692			final Uri uri = pendingTakePhotoUri.peek();
1693			if (uri != null) {
1694				outState.putString(STATE_PHOTO_URI, uri.toString());
1695			}
1696			final ScrollState scrollState = getScrollPosition();
1697			if (scrollState != null) {
1698				outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1699			}
1700		}
1701	}
1702
1703	@Override
1704	public void onActivityCreated(Bundle savedInstanceState) {
1705		super.onActivityCreated(savedInstanceState);
1706		if (savedInstanceState == null) {
1707			return;
1708		}
1709		String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1710		if (uuid != null) {
1711			this.pendingConversationsUuid.push(uuid);
1712			String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1713			if (takePhotoUri != null) {
1714				pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1715			}
1716			pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1717		}
1718	}
1719
1720	@Override
1721	public void onStart() {
1722		super.onStart();
1723		if (this.reInitRequiredOnStart) {
1724			final Bundle extras = pendingExtras.pop();
1725			reInit(conversation, extras != null);
1726			if (extras != null) {
1727				processExtras(extras);
1728			}
1729		} else {
1730			Log.d(Config.LOGTAG, "skipped reinit on start");
1731		}
1732	}
1733
1734	@Override
1735	public void onStop() {
1736		super.onStop();
1737		final Activity activity = getActivity();
1738		if (activity == null || !activity.isChangingConfigurations()) {
1739			hideSoftKeyboard(activity);
1740			messageListAdapter.stopAudioPlayer();
1741		}
1742		if (this.conversation != null) {
1743			final String msg = this.binding.textinput.getText().toString();
1744			if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && this.conversation.setNextMessage(msg)) {
1745				this.activity.xmppConnectionService.updateConversation(this.conversation);
1746			}
1747			updateChatState(this.conversation, msg);
1748			this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1749		}
1750		this.reInitRequiredOnStart = true;
1751	}
1752
1753	private void updateChatState(final Conversation conversation, final String msg) {
1754		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
1755		Account.State status = conversation.getAccount().getStatus();
1756		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1757			activity.xmppConnectionService.sendChatState(conversation);
1758		}
1759	}
1760
1761	private void saveMessageDraftStopAudioPlayer() {
1762		final Conversation previousConversation = this.conversation;
1763		if (this.activity == null || this.binding == null || previousConversation == null) {
1764			return;
1765		}
1766		Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1767		final String msg = this.binding.textinput.getText().toString();
1768		if (previousConversation.setNextMessage(msg)) {
1769			activity.xmppConnectionService.updateConversation(previousConversation);
1770		}
1771		updateChatState(this.conversation, msg);
1772		messageListAdapter.stopAudioPlayer();
1773	}
1774
1775	public void reInit(Conversation conversation, Bundle extras) {
1776		this.saveMessageDraftStopAudioPlayer();
1777		if (this.reInit(conversation, extras != null)) {
1778			if (extras != null) {
1779				processExtras(extras);
1780			}
1781			this.reInitRequiredOnStart = false;
1782		} else {
1783			this.reInitRequiredOnStart = true;
1784			pendingExtras.push(extras);
1785		}
1786	}
1787
1788	private void reInit(Conversation conversation) {
1789		reInit(conversation, false);
1790	}
1791
1792	private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1793		if (conversation == null) {
1794			return false;
1795		}
1796		this.conversation = conversation;
1797		//once we set the conversation all is good and it will automatically do the right thing in onStart()
1798		if (this.activity == null || this.binding == null) {
1799			return false;
1800		}
1801		stopScrolling();
1802		Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1803
1804		if (this.conversation.isRead() && hasExtras) {
1805			Log.d(Config.LOGTAG, "trimming conversation");
1806			this.conversation.trim();
1807		}
1808
1809		setupIme();
1810
1811		final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1812
1813		this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1814		this.binding.textinput.setKeyboardListener(null);
1815		this.binding.textinput.setText("");
1816		this.binding.textinput.append(this.conversation.getNextMessage());
1817		this.binding.textinput.setKeyboardListener(this);
1818		messageListAdapter.updatePreferences();
1819		refresh(false);
1820		this.conversation.messagesLoaded.set(true);
1821
1822		Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1823
1824		if (hasExtras || scrolledToBottomAndNoPending) {
1825			synchronized (this.messageList) {
1826				Log.d(Config.LOGTAG, "jump to first unread message");
1827				final Message first = conversation.getFirstUnreadMessage();
1828				final int bottom = Math.max(0, this.messageList.size() - 1);
1829				final int pos;
1830				if (first == null) {
1831					pos = bottom;
1832				} else {
1833					int i = getIndexOf(first.getUuid(), this.messageList);
1834					pos = i < 0 ? bottom : i;
1835				}
1836				setSelection(pos);
1837			}
1838		}
1839
1840		activity.onConversationRead(this.conversation);
1841		//TODO if we only do this when this fragment is running on main it won't *bing* in tablet layout which might be unnecessary since we can *see* it
1842		activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1843		return true;
1844	}
1845
1846	private void setSelection(int pos) {
1847		this.binding.messagesView.setSelection(pos);
1848		this.binding.messagesView.post(() -> this.binding.messagesView.setSelection(pos));
1849	}
1850
1851	private boolean scrolledToBottom() {
1852		if (this.binding == null) {
1853			return false;
1854		}
1855		final ListView listView = this.binding.messagesView;
1856		if (listView.getLastVisiblePosition() == listView.getAdapter().getCount() - 1) {
1857			final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
1858			return lastChild != null && lastChild.getBottom() <= listView.getHeight();
1859		} else {
1860			return false;
1861		}
1862	}
1863
1864	private void processExtras(Bundle extras) {
1865		final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
1866		final String text = extras.getString(ConversationsActivity.EXTRA_TEXT);
1867		final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
1868		final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
1869		if (nick != null) {
1870			if (pm) {
1871				Jid jid = conversation.getJid();
1872				try {
1873					Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
1874					privateMessageWith(next);
1875				} catch (final IllegalArgumentException ignored) {
1876					//do nothing
1877				}
1878			} else {
1879				final MucOptions mucOptions = conversation.getMucOptions();
1880				if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
1881					highlightInConference(nick);
1882				}
1883			}
1884		} else {
1885			appendText(text);
1886		}
1887		final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
1888		if (message != null) {
1889			startDownloadable(message);
1890		}
1891	}
1892
1893	private boolean showBlockSubmenu(View view) {
1894		final Jid jid = conversation.getJid();
1895		if (jid.getLocal() == null) {
1896			BlockContactDialog.show(activity, conversation);
1897		} else {
1898			PopupMenu popupMenu = new PopupMenu(getActivity(), view);
1899			popupMenu.inflate(R.menu.block);
1900			popupMenu.setOnMenuItemClickListener(menuItem -> {
1901				Blockable blockable;
1902				switch (menuItem.getItemId()) {
1903					case R.id.block_domain:
1904						blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
1905						break;
1906					default:
1907						blockable = conversation;
1908				}
1909				BlockContactDialog.show(activity, blockable);
1910				return true;
1911			});
1912			popupMenu.show();
1913		}
1914		return true;
1915	}
1916
1917	private void updateSnackBar(final Conversation conversation) {
1918		final Account account = conversation.getAccount();
1919		final XmppConnection connection = account.getXmppConnection();
1920		final int mode = conversation.getMode();
1921		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
1922		if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
1923			return;
1924		}
1925		if (account.getStatus() == Account.State.DISABLED) {
1926			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
1927		} else if (conversation.isBlocked()) {
1928			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
1929		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1930			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
1931		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1932			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
1933		} else if (mode == Conversation.MODE_MULTI
1934				&& !conversation.getMucOptions().online()
1935				&& account.getStatus() == Account.State.ONLINE) {
1936			switch (conversation.getMucOptions().getError()) {
1937				case NICK_IN_USE:
1938					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
1939					break;
1940				case NO_RESPONSE:
1941					showSnackbar(R.string.joining_conference, 0, null);
1942					break;
1943				case SERVER_NOT_FOUND:
1944					if (conversation.receivedMessagesCount() > 0) {
1945						showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
1946					} else {
1947						showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
1948					}
1949					break;
1950				case PASSWORD_REQUIRED:
1951					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
1952					break;
1953				case BANNED:
1954					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
1955					break;
1956				case MEMBERS_ONLY:
1957					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
1958					break;
1959				case KICKED:
1960					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
1961					break;
1962				case UNKNOWN:
1963					showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
1964					break;
1965				case INVALID_NICK:
1966					showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
1967				case SHUTDOWN:
1968					showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
1969					break;
1970				default:
1971					hideSnackbar();
1972					break;
1973			}
1974		} else if (account.hasPendingPgpIntent(conversation)) {
1975			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
1976		} else if (connection != null
1977				&& connection.getFeatures().blocking()
1978				&& conversation.countMessages() != 0
1979				&& !conversation.isBlocked()
1980				&& conversation.isWithStranger()) {
1981			showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
1982		} else {
1983			hideSnackbar();
1984		}
1985	}
1986
1987	@Override
1988	public void refresh() {
1989		if (this.binding == null) {
1990			Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
1991			return;
1992		}
1993		this.refresh(true);
1994	}
1995
1996	private void refresh(boolean notifyConversationRead) {
1997		synchronized (this.messageList) {
1998			if (this.conversation != null) {
1999				conversation.populateWithMessages(this.messageList);
2000				updateSnackBar(conversation);
2001				updateStatusMessages();
2002				this.messageListAdapter.notifyDataSetChanged();
2003				updateChatMsgHint();
2004				if (notifyConversationRead && activity != null) {
2005					activity.onConversationRead(this.conversation);
2006				}
2007				updateSendButton();
2008				updateEditablity();
2009			}
2010		}
2011	}
2012
2013	protected void messageSent() {
2014		mSendingPgpMessage.set(false);
2015		this.binding.textinput.setText("");
2016		if (conversation.setCorrectingMessage(null)) {
2017			this.binding.textinput.append(conversation.getDraftMessage());
2018			conversation.setDraftMessage(null);
2019		}
2020		if (conversation.setNextMessage(this.binding.textinput.getText().toString())) {
2021			activity.xmppConnectionService.updateConversation(conversation);
2022		}
2023		updateChatMsgHint();
2024		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2025		final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2026		if (prefScrollToBottom || scrolledToBottom()) {
2027			new Handler().post(() -> {
2028				int size = messageList.size();
2029				this.binding.messagesView.setSelection(size - 1);
2030			});
2031		}
2032	}
2033
2034	public void setFocusOnInputField() {
2035		this.binding.textinput.requestFocus();
2036	}
2037
2038	public void doneSendingPgpMessage() {
2039		mSendingPgpMessage.set(false);
2040	}
2041
2042	public long getMaxHttpUploadSize(Conversation conversation) {
2043		final XmppConnection connection = conversation.getAccount().getXmppConnection();
2044		return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2045	}
2046
2047	private void updateEditablity() {
2048		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2049		this.binding.textinput.setFocusable(canWrite);
2050		this.binding.textinput.setFocusableInTouchMode(canWrite);
2051		this.binding.textSendButton.setEnabled(canWrite);
2052		this.binding.textinput.setCursorVisible(canWrite);
2053	}
2054
2055	public void updateSendButton() {
2056		boolean useSendButtonToIndicateStatus = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("send_button_status", getResources().getBoolean(R.bool.send_button_status));
2057		final Conversation c = this.conversation;
2058		final Presence.Status status;
2059		final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2060		final SendButtonAction action = SendButtonTool.getAction(getActivity(), c, text);
2061		if (useSendButtonToIndicateStatus && c.getAccount().getStatus() == Account.State.ONLINE) {
2062			if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2063				status = Presence.Status.OFFLINE;
2064			} else if (c.getMode() == Conversation.MODE_SINGLE) {
2065				status = c.getContact().getShownStatus();
2066			} else {
2067				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2068			}
2069		} else {
2070			status = Presence.Status.OFFLINE;
2071		}
2072		this.binding.textSendButton.setTag(action);
2073		this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(getActivity(), action, status));
2074	}
2075
2076	protected void updateDateSeparators() {
2077		synchronized (this.messageList) {
2078			for (int i = 0; i < this.messageList.size(); ++i) {
2079				final Message current = this.messageList.get(i);
2080				if (i == 0 || !UIHelper.sameDay(this.messageList.get(i - 1).getTimeSent(), current.getTimeSent())) {
2081					this.messageList.add(i, Message.createDateSeparator(current));
2082					i++;
2083				}
2084			}
2085		}
2086	}
2087
2088	protected void updateStatusMessages() {
2089		updateDateSeparators();
2090		synchronized (this.messageList) {
2091			if (showLoadMoreMessages(conversation)) {
2092				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2093			}
2094			if (conversation.getMode() == Conversation.MODE_SINGLE) {
2095				ChatState state = conversation.getIncomingChatState();
2096				if (state == ChatState.COMPOSING) {
2097					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2098				} else if (state == ChatState.PAUSED) {
2099					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2100				} else {
2101					for (int i = this.messageList.size() - 1; i >= 0; --i) {
2102						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
2103							return;
2104						} else {
2105							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
2106								this.messageList.add(i + 1,
2107										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2108								return;
2109							}
2110						}
2111					}
2112				}
2113			} else {
2114				final MucOptions mucOptions = conversation.getMucOptions();
2115				final List<MucOptions.User> allUsers = mucOptions.getUsers();
2116				final Set<ReadByMarker> addedMarkers = new HashSet<>();
2117				ChatState state = ChatState.COMPOSING;
2118				List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2119				if (users.size() == 0) {
2120					state = ChatState.PAUSED;
2121					users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2122				}
2123				if (mucOptions.isPrivateAndNonAnonymous()) {
2124					for (int i = this.messageList.size() - 1; i >= 0; --i) {
2125						final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2126						final List<MucOptions.User> shownMarkers = new ArrayList<>();
2127						for (ReadByMarker marker : markersForMessage) {
2128							if (!ReadByMarker.contains(marker, addedMarkers)) {
2129								addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2130								MucOptions.User user = mucOptions.findUser(marker);
2131								if (user != null && !users.contains(user)) {
2132									shownMarkers.add(user);
2133								}
2134							}
2135						}
2136						final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2137						final Message statusMessage;
2138						final int size = shownMarkers.size();
2139						if (size > 1) {
2140							final String body;
2141							if (size <= 4) {
2142								body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2143							} else {
2144								body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2145							}
2146							statusMessage = Message.createStatusMessage(conversation, body);
2147							statusMessage.setCounterparts(shownMarkers);
2148						} else if (size == 1) {
2149							statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2150							statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2151							statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2152						} else {
2153							statusMessage = null;
2154						}
2155						if (statusMessage != null) {
2156							this.messageList.add(i + 1, statusMessage);
2157						}
2158						addedMarkers.add(markerForSender);
2159						if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2160							break;
2161						}
2162					}
2163				}
2164				if (users.size() > 0) {
2165					Message statusMessage;
2166					if (users.size() == 1) {
2167						MucOptions.User user = users.get(0);
2168						int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2169						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2170						statusMessage.setTrueCounterpart(user.getRealJid());
2171						statusMessage.setCounterpart(user.getFullJid());
2172					} else {
2173						int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2174						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2175						statusMessage.setCounterparts(users);
2176					}
2177					this.messageList.add(statusMessage);
2178				}
2179
2180			}
2181		}
2182	}
2183
2184	private void stopScrolling() {
2185		long now = SystemClock.uptimeMillis();
2186		MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2187		binding.messagesView.dispatchTouchEvent(cancel);
2188	}
2189
2190	private boolean showLoadMoreMessages(final Conversation c) {
2191		if (activity == null || activity.xmppConnectionService == null) {
2192			return false;
2193		}
2194		final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2195		final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2196		return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2197	}
2198
2199	private boolean hasMamSupport(final Conversation c) {
2200		if (c.getMode() == Conversation.MODE_SINGLE) {
2201			final XmppConnection connection = c.getAccount().getXmppConnection();
2202			return connection != null && connection.getFeatures().mam();
2203		} else {
2204			return c.getMucOptions().mamSupport();
2205		}
2206	}
2207
2208	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2209		showSnackbar(message, action, clickListener, null);
2210	}
2211
2212	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2213		this.binding.snackbar.setVisibility(View.VISIBLE);
2214		this.binding.snackbar.setOnClickListener(null);
2215		this.binding.snackbarMessage.setText(message);
2216		this.binding.snackbarMessage.setOnClickListener(null);
2217		this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2218		if (action != 0) {
2219			this.binding.snackbarAction.setText(action);
2220		}
2221		this.binding.snackbarAction.setOnClickListener(clickListener);
2222		this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2223	}
2224
2225	protected void hideSnackbar() {
2226		this.binding.snackbar.setVisibility(View.GONE);
2227	}
2228
2229	protected void sendMessage(Message message) {
2230		activity.xmppConnectionService.sendMessage(message);
2231		messageSent();
2232	}
2233
2234	protected void sendPgpMessage(final Message message) {
2235		final XmppConnectionService xmppService = activity.xmppConnectionService;
2236		final Contact contact = message.getConversation().getContact();
2237		if (!activity.hasPgp()) {
2238			activity.showInstallPgpDialog();
2239			return;
2240		}
2241		if (conversation.getAccount().getPgpSignature() == null) {
2242			activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2243			return;
2244		}
2245		if (!mSendingPgpMessage.compareAndSet(false, true)) {
2246			Log.d(Config.LOGTAG, "sending pgp message already in progress");
2247		}
2248		if (conversation.getMode() == Conversation.MODE_SINGLE) {
2249			if (contact.getPgpKeyId() != 0) {
2250				xmppService.getPgpEngine().hasKey(contact,
2251						new UiCallback<Contact>() {
2252
2253							@Override
2254							public void userInputRequried(PendingIntent pi, Contact contact) {
2255								startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2256							}
2257
2258							@Override
2259							public void success(Contact contact) {
2260								encryptTextMessage(message);
2261							}
2262
2263							@Override
2264							public void error(int error, Contact contact) {
2265								activity.runOnUiThread(() -> Toast.makeText(activity,
2266										R.string.unable_to_connect_to_keychain,
2267										Toast.LENGTH_SHORT
2268								).show());
2269								mSendingPgpMessage.set(false);
2270							}
2271						});
2272
2273			} else {
2274				showNoPGPKeyDialog(false, (dialog, which) -> {
2275					conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2276					xmppService.updateConversation(conversation);
2277					message.setEncryption(Message.ENCRYPTION_NONE);
2278					xmppService.sendMessage(message);
2279					messageSent();
2280				});
2281			}
2282		} else {
2283			if (conversation.getMucOptions().pgpKeysInUse()) {
2284				if (!conversation.getMucOptions().everybodyHasKeys()) {
2285					Toast warning = Toast
2286							.makeText(getActivity(),
2287									R.string.missing_public_keys,
2288									Toast.LENGTH_LONG);
2289					warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2290					warning.show();
2291				}
2292				encryptTextMessage(message);
2293			} else {
2294				showNoPGPKeyDialog(true, (dialog, which) -> {
2295					conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2296					message.setEncryption(Message.ENCRYPTION_NONE);
2297					xmppService.updateConversation(conversation);
2298					xmppService.sendMessage(message);
2299					messageSent();
2300				});
2301			}
2302		}
2303	}
2304
2305	public void encryptTextMessage(Message message) {
2306		activity.xmppConnectionService.getPgpEngine().encrypt(message,
2307				new UiCallback<Message>() {
2308
2309					@Override
2310					public void userInputRequried(PendingIntent pi, Message message) {
2311						startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2312					}
2313
2314					@Override
2315					public void success(Message message) {
2316						//TODO the following two call can be made before the callback
2317						getActivity().runOnUiThread(() -> messageSent());
2318					}
2319
2320					@Override
2321					public void error(final int error, Message message) {
2322						getActivity().runOnUiThread(() -> {
2323							doneSendingPgpMessage();
2324							Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
2325						});
2326
2327					}
2328				});
2329	}
2330
2331	public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2332		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2333		builder.setIconAttribute(android.R.attr.alertDialogIcon);
2334		if (plural) {
2335			builder.setTitle(getString(R.string.no_pgp_keys));
2336			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2337		} else {
2338			builder.setTitle(getString(R.string.no_pgp_key));
2339			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2340		}
2341		builder.setNegativeButton(getString(R.string.cancel), null);
2342		builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2343		builder.create().show();
2344	}
2345
2346	public void appendText(String text) {
2347		if (text == null) {
2348			return;
2349		}
2350		String previous = this.binding.textinput.getText().toString();
2351		if (previous.length() != 0 && !previous.endsWith(" ")) {
2352			text = " " + text;
2353		}
2354		this.binding.textinput.append(text);
2355	}
2356
2357	@Override
2358	public boolean onEnterPressed() {
2359		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2360		final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2361		if (enterIsSend) {
2362			sendMessage();
2363			return true;
2364		} else {
2365			return false;
2366		}
2367	}
2368
2369	@Override
2370	public void onTypingStarted() {
2371		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2372		if (service == null) {
2373			return;
2374		}
2375		Account.State status = conversation.getAccount().getStatus();
2376		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2377			service.sendChatState(conversation);
2378		}
2379		updateSendButton();
2380	}
2381
2382	@Override
2383	public void onTypingStopped() {
2384		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2385		if (service == null) {
2386			return;
2387		}
2388		Account.State status = conversation.getAccount().getStatus();
2389		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2390			service.sendChatState(conversation);
2391		}
2392	}
2393
2394	@Override
2395	public void onTextDeleted() {
2396		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2397		if (service == null) {
2398			return;
2399		}
2400		Account.State status = conversation.getAccount().getStatus();
2401		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
2402			service.sendChatState(conversation);
2403		}
2404		updateSendButton();
2405	}
2406
2407	@Override
2408	public void onTextChanged() {
2409		if (conversation != null && conversation.getCorrectingMessage() != null) {
2410			updateSendButton();
2411		}
2412	}
2413
2414	@Override
2415	public boolean onTabPressed(boolean repeated) {
2416		if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2417			return false;
2418		}
2419		if (repeated) {
2420			completionIndex++;
2421		} else {
2422			lastCompletionLength = 0;
2423			completionIndex = 0;
2424			final String content = this.binding.textinput.getText().toString();
2425			lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2426			int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2427			firstWord = start == 0;
2428			incomplete = content.substring(start, lastCompletionCursor);
2429		}
2430		List<String> completions = new ArrayList<>();
2431		for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2432			String name = user.getName();
2433			if (name != null && name.startsWith(incomplete)) {
2434				completions.add(name + (firstWord ? ": " : " "));
2435			}
2436		}
2437		Collections.sort(completions);
2438		if (completions.size() > completionIndex) {
2439			String completion = completions.get(completionIndex).substring(incomplete.length());
2440			this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2441			this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2442			lastCompletionLength = completion.length();
2443		} else {
2444			completionIndex = -1;
2445			this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2446			lastCompletionLength = 0;
2447		}
2448		return true;
2449	}
2450
2451	private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2452		try {
2453			getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2454		} catch (final SendIntentException ignored) {
2455		}
2456	}
2457
2458	@Override
2459	public void onBackendConnected() {
2460		Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2461		String uuid = pendingConversationsUuid.pop();
2462		if (uuid != null) {
2463			Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2464			if (conversation == null) {
2465				Log.d(Config.LOGTAG, "unable to restore activity");
2466				clearPending();
2467				return;
2468			}
2469			reInit(conversation);
2470			ScrollState scrollState = pendingScrollState.pop();
2471			if (scrollState != null) {
2472				setScrollPosition(scrollState);
2473			}
2474		}
2475		ActivityResult activityResult = postponedActivityResult.pop();
2476		if (activityResult != null) {
2477			handleActivityResult(activityResult);
2478		}
2479		clearPending();
2480	}
2481
2482	private void clearPending() {
2483		if (postponedActivityResult.pop() != null) {
2484			Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2485		}
2486		pendingScrollState.pop();
2487		if (pendingTakePhotoUri.pop() != null) {
2488			Log.e(Config.LOGTAG, "cleared pending photo uri");
2489		}
2490	}
2491
2492	public Conversation getConversation() {
2493		return conversation;
2494	}
2495}