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.MenuDoubleTabUtil;
  89import eu.siacs.conversations.ui.util.PendingItem;
  90import eu.siacs.conversations.ui.util.PresenceSelector;
  91import eu.siacs.conversations.ui.util.ScrollState;
  92import eu.siacs.conversations.ui.util.SendButtonAction;
  93import eu.siacs.conversations.ui.util.SendButtonTool;
  94import eu.siacs.conversations.ui.widget.EditMessage;
  95import eu.siacs.conversations.utils.MessageUtils;
  96import eu.siacs.conversations.utils.NickValidityChecker;
  97import eu.siacs.conversations.utils.StylingHelper;
  98import eu.siacs.conversations.utils.TimeframeUtils;
  99import eu.siacs.conversations.utils.UIHelper;
 100import eu.siacs.conversations.xmpp.XmppConnection;
 101import eu.siacs.conversations.xmpp.chatstate.ChatState;
 102import rocks.xmpp.addr.Jid;
 103
 104import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 105import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 106
 107
 108public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener {
 109
 110
 111	public static final int REQUEST_SEND_MESSAGE = 0x0201;
 112	public static final int REQUEST_DECRYPT_PGP = 0x0202;
 113	public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 114	public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 115	public static final int REQUEST_TRUST_KEYS_MENU = 0x0209;
 116	public static final int REQUEST_START_DOWNLOAD = 0x0210;
 117	public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 118	public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 119	public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 120	public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 121	public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 122	public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 123	public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 124	public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 125
 126	public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 127	public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 128	public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 129	public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".take_photo_uri";
 130
 131
 132	final protected List<Message> messageList = new ArrayList<>();
 133	private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 134	private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 135	private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 136	private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 137	private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 138	private final PendingItem<Message> pendingMessage = new PendingItem<>();
 139	public Uri mPendingEditorContent = null;
 140	protected MessageAdapter messageListAdapter;
 141	private Conversation conversation;
 142	private FragmentConversationBinding binding;
 143	private Toast messageLoaderToast;
 144	private ConversationsActivity activity;
 145	private boolean reInitRequiredOnStart = true;
 146	private OnClickListener clickToMuc = new OnClickListener() {
 147
 148		@Override
 149		public void onClick(View v) {
 150			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 151			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 152			intent.putExtra("uuid", conversation.getUuid());
 153			startActivity(intent);
 154		}
 155	};
 156	private OnClickListener leaveMuc = new OnClickListener() {
 157
 158		@Override
 159		public void onClick(View v) {
 160			activity.xmppConnectionService.archiveConversation(conversation);
 161			activity.onConversationArchived(conversation);
 162		}
 163	};
 164	private OnClickListener joinMuc = new OnClickListener() {
 165
 166		@Override
 167		public void onClick(View v) {
 168			activity.xmppConnectionService.joinMuc(conversation);
 169		}
 170	};
 171	private OnClickListener enterPassword = new OnClickListener() {
 172
 173		@Override
 174		public void onClick(View v) {
 175			MucOptions muc = conversation.getMucOptions();
 176			String password = muc.getPassword();
 177			if (password == null) {
 178				password = "";
 179			}
 180			activity.quickPasswordEdit(password, value -> {
 181				activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 182				return null;
 183			});
 184		}
 185	};
 186	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 187
 188		@Override
 189		public void onScrollStateChanged(AbsListView view, int scrollState) {
 190			// TODO Auto-generated method stub
 191
 192		}
 193
 194		@Override
 195		public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 196			synchronized (ConversationFragment.this.messageList) {
 197				if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 198					long timestamp;
 199					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 200						timestamp = messageList.get(1).getTimeSent();
 201					} else {
 202						timestamp = messageList.get(0).getTimeSent();
 203					}
 204					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 205						@Override
 206						public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 207							if (ConversationFragment.this.conversation != conversation) {
 208								conversation.messagesLoaded.set(true);
 209								return;
 210							}
 211							runOnUiThread(() -> {
 212								final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 213								Message message = null;
 214								int childPos;
 215								for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 216									message = messageList.get(oldPosition + childPos);
 217									if (message.getType() != Message.TYPE_STATUS) {
 218										break;
 219									}
 220								}
 221								final String uuid = message != null ? message.getUuid() : null;
 222								View v = binding.messagesView.getChildAt(childPos);
 223								final int pxOffset = (v == null) ? 0 : v.getTop();
 224								ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 225								try {
 226									updateStatusMessages();
 227								} catch (IllegalStateException e) {
 228									Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 229								}
 230								messageListAdapter.notifyDataSetChanged();
 231								int pos = Math.max(getIndexOf(uuid, messageList), 0);
 232								binding.messagesView.setSelectionFromTop(pos, pxOffset);
 233								if (messageLoaderToast != null) {
 234									messageLoaderToast.cancel();
 235								}
 236								conversation.messagesLoaded.set(true);
 237							});
 238						}
 239
 240						@Override
 241						public void informUser(final int resId) {
 242
 243							runOnUiThread(() -> {
 244								if (messageLoaderToast != null) {
 245									messageLoaderToast.cancel();
 246								}
 247								if (ConversationFragment.this.conversation != conversation) {
 248									return;
 249								}
 250								messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 251								messageLoaderToast.show();
 252							});
 253
 254						}
 255					});
 256
 257				}
 258			}
 259		}
 260	};
 261	private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 262		@Override
 263		public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 264			// try to get permission to read the image, if applicable
 265			if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 266				try {
 267					inputContentInfo.requestPermission();
 268				} catch (Exception e) {
 269					Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 270					Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 271					).show();
 272					return false;
 273				}
 274			}
 275			if (hasStoragePermission(REQUEST_ADD_EDITOR_CONTENT)) {
 276				attachImageToConversation(inputContentInfo.getContentUri());
 277			} else {
 278				mPendingEditorContent = inputContentInfo.getContentUri();
 279			}
 280			return true;
 281		}
 282	};
 283	private Message selectedMessage;
 284	private OnClickListener mEnableAccountListener = new OnClickListener() {
 285		@Override
 286		public void onClick(View v) {
 287			final Account account = conversation == null ? null : conversation.getAccount();
 288			if (account != null) {
 289				account.setOption(Account.OPTION_DISABLED, false);
 290				activity.xmppConnectionService.updateAccount(account);
 291			}
 292		}
 293	};
 294	private OnClickListener mUnblockClickListener = new OnClickListener() {
 295		@Override
 296		public void onClick(final View v) {
 297			v.post(() -> v.setVisibility(View.INVISIBLE));
 298			if (conversation.isDomainBlocked()) {
 299				BlockContactDialog.show(activity, conversation);
 300			} else {
 301				unblockConversation(conversation);
 302			}
 303		}
 304	};
 305	private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 306	private OnClickListener mAddBackClickListener = new OnClickListener() {
 307
 308		@Override
 309		public void onClick(View v) {
 310			final Contact contact = conversation == null ? null : conversation.getContact();
 311			if (contact != null) {
 312				activity.xmppConnectionService.createContact(contact, true);
 313				activity.switchToContactDetails(contact);
 314			}
 315		}
 316	};
 317	private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 318	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 319		@Override
 320		public void onClick(View v) {
 321			final Contact contact = conversation == null ? null : conversation.getContact();
 322			if (contact != null) {
 323				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 324						activity.xmppConnectionService.getPresenceGenerator()
 325								.sendPresenceUpdatesTo(contact));
 326				hideSnackbar();
 327			}
 328		}
 329	};
 330	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 331
 332		@Override
 333		public void onClick(View v) {
 334			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 335			if (pendingIntent != null) {
 336				try {
 337					getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 338							REQUEST_DECRYPT_PGP,
 339							null,
 340							0,
 341							0,
 342							0);
 343				} catch (SendIntentException e) {
 344					Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 345					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 346				}
 347			}
 348			updateSnackBar(conversation);
 349		}
 350	};
 351	private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 352	private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 353		if (actionId == EditorInfo.IME_ACTION_SEND) {
 354			InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 355			if (imm != null && imm.isFullscreenMode()) {
 356				imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 357			}
 358			sendMessage();
 359			return true;
 360		} else {
 361			return false;
 362		}
 363	};
 364	private OnClickListener mSendButtonListener = new OnClickListener() {
 365
 366		@Override
 367		public void onClick(View v) {
 368			Object tag = v.getTag();
 369			if (tag instanceof SendButtonAction) {
 370				SendButtonAction action = (SendButtonAction) tag;
 371				switch (action) {
 372					case TAKE_PHOTO:
 373					case RECORD_VIDEO:
 374					case SEND_LOCATION:
 375					case RECORD_VOICE:
 376					case CHOOSE_PICTURE:
 377						attachFile(action.toChoice());
 378						break;
 379					case CANCEL:
 380						if (conversation != null) {
 381							if (conversation.setCorrectingMessage(null)) {
 382								binding.textinput.setText("");
 383								binding.textinput.append(conversation.getDraftMessage());
 384								conversation.setDraftMessage(null);
 385							} else if (conversation.getMode() == Conversation.MODE_MULTI) {
 386								conversation.setNextCounterpart(null);
 387							}
 388							updateChatMsgHint();
 389							updateSendButton();
 390							updateEditablity();
 391						}
 392						break;
 393					default:
 394						sendMessage();
 395				}
 396			} else {
 397				sendMessage();
 398			}
 399		}
 400	};
 401	private int completionIndex = 0;
 402	private int lastCompletionLength = 0;
 403	private String incomplete;
 404	private int lastCompletionCursor;
 405	private boolean firstWord = false;
 406	private Message mPendingDownloadableMessage;
 407
 408	private static ConversationFragment findConversationFragment(Activity activity) {
 409		Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 410		if (fragment != null && fragment instanceof ConversationFragment) {
 411			return (ConversationFragment) fragment;
 412		}
 413		fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 414		if (fragment != null && fragment instanceof ConversationFragment) {
 415			return (ConversationFragment) fragment;
 416		}
 417		return null;
 418	}
 419
 420	public static void startStopPending(Activity activity) {
 421		ConversationFragment fragment = findConversationFragment(activity);
 422		if (fragment != null) {
 423			fragment.messageListAdapter.startStopPending();
 424		}
 425	}
 426
 427	public static void downloadFile(Activity activity, Message message) {
 428		ConversationFragment fragment = findConversationFragment(activity);
 429		if (fragment != null) {
 430			fragment.startDownloadable(message);
 431		}
 432	}
 433
 434	public static void registerPendingMessage(Activity activity, Message message) {
 435		ConversationFragment fragment = findConversationFragment(activity);
 436		if (fragment != null) {
 437			fragment.pendingMessage.push(message);
 438		}
 439	}
 440
 441	public static void openPendingMessage(Activity activity) {
 442		ConversationFragment fragment = findConversationFragment(activity);
 443		if (fragment != null) {
 444			Message message = fragment.pendingMessage.pop();
 445			if (message != null) {
 446				fragment.messageListAdapter.openDownloadable(message);
 447			}
 448		}
 449	}
 450
 451	public static Conversation getConversation(Activity activity) {
 452		return getConversation(activity, R.id.secondary_fragment);
 453	}
 454
 455	private static Conversation getConversation(Activity activity, @IdRes int res) {
 456		final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 457		if (fragment != null && fragment instanceof ConversationFragment) {
 458			return ((ConversationFragment) fragment).getConversation();
 459		} else {
 460			return null;
 461		}
 462	}
 463
 464	public static Conversation getConversationReliable(Activity activity) {
 465		final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 466		if (conversation != null) {
 467			return conversation;
 468		}
 469		return getConversation(activity, R.id.main_fragment);
 470	}
 471
 472	private static boolean allGranted(int[] grantResults) {
 473		for (int grantResult : grantResults) {
 474			if (grantResult != PackageManager.PERMISSION_GRANTED) {
 475				return false;
 476			}
 477		}
 478		return true;
 479	}
 480
 481	private static String getFirstDenied(int[] grantResults, String[] permissions) {
 482		for (int i = 0; i < grantResults.length; ++i) {
 483			if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
 484				return permissions[i];
 485			}
 486		}
 487		return null;
 488	}
 489
 490	private int getIndexOf(String uuid, List<Message> messages) {
 491		if (uuid == null) {
 492			return messages.size() - 1;
 493		}
 494		for (int i = 0; i < messages.size(); ++i) {
 495			if (uuid.equals(messages.get(i).getUuid())) {
 496				return i;
 497			} else {
 498				Message next = messages.get(i);
 499				while (next != null && next.wasMergedIntoPrevious()) {
 500					if (uuid.equals(next.getUuid())) {
 501						return i;
 502					}
 503					next = next.next();
 504				}
 505
 506			}
 507		}
 508		return -1;
 509	}
 510
 511	private ScrollState getScrollPosition() {
 512		final ListView listView = this.binding.messagesView;
 513		if (listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 514			return null;
 515		} else {
 516			final int pos = listView.getFirstVisiblePosition();
 517			final View view = listView.getChildAt(0);
 518			if (view == null) {
 519				return null;
 520			} else {
 521				return new ScrollState(pos, view.getTop());
 522			}
 523		}
 524	}
 525
 526	private void setScrollPosition(ScrollState scrollPosition) {
 527		if (scrollPosition != null) {
 528			//TODO maybe this needs a 'post'
 529			this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 530		}
 531	}
 532
 533	private void attachLocationToConversation(Conversation conversation, Uri uri) {
 534		if (conversation == null) {
 535			return;
 536		}
 537		activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 538
 539			@Override
 540			public void success(Message message) {
 541
 542			}
 543
 544			@Override
 545			public void error(int errorCode, Message object) {
 546				//TODO show possible pgp error
 547			}
 548
 549			@Override
 550			public void userInputRequried(PendingIntent pi, Message object) {
 551
 552			}
 553		});
 554	}
 555
 556	private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 557		if (conversation == null) {
 558			return;
 559		}
 560		final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 561		prepareFileToast.show();
 562		activity.delegateUriPermissionsToService(uri);
 563		activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 564			@Override
 565			public void inform(final String text) {
 566				hidePrepareFileToast(prepareFileToast);
 567				runOnUiThread(() -> activity.replaceToast(text));
 568			}
 569
 570			@Override
 571			public void success(Message message) {
 572				runOnUiThread(() -> activity.hideToast());
 573				hidePrepareFileToast(prepareFileToast);
 574			}
 575
 576			@Override
 577			public void error(final int errorCode, Message message) {
 578				hidePrepareFileToast(prepareFileToast);
 579				runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 580
 581			}
 582
 583			@Override
 584			public void userInputRequried(PendingIntent pi, Message message) {
 585				hidePrepareFileToast(prepareFileToast);
 586			}
 587		});
 588	}
 589
 590	public void attachImageToConversation(Uri uri) {
 591		this.attachImageToConversation(conversation, uri);
 592	}
 593
 594	private void attachImageToConversation(Conversation conversation, Uri uri) {
 595		if (conversation == null) {
 596			return;
 597		}
 598		final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 599		prepareFileToast.show();
 600		activity.delegateUriPermissionsToService(uri);
 601		activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 602				new UiCallback<Message>() {
 603
 604					@Override
 605					public void userInputRequried(PendingIntent pi, Message object) {
 606						hidePrepareFileToast(prepareFileToast);
 607					}
 608
 609					@Override
 610					public void success(Message message) {
 611						hidePrepareFileToast(prepareFileToast);
 612					}
 613
 614					@Override
 615					public void error(final int error, Message message) {
 616						hidePrepareFileToast(prepareFileToast);
 617						activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 618					}
 619				});
 620	}
 621
 622	private void hidePrepareFileToast(final Toast prepareFileToast) {
 623		if (prepareFileToast != null && activity != null) {
 624			activity.runOnUiThread(prepareFileToast::cancel);
 625		}
 626	}
 627
 628	private void sendMessage() {
 629		final String body = this.binding.textinput.getText().toString();
 630		final Conversation conversation = this.conversation;
 631		if (body.length() == 0 || conversation == null) {
 632			return;
 633		}
 634		final Message message;
 635		if (conversation.getCorrectingMessage() == null) {
 636			message = new Message(conversation, body, conversation.getNextEncryption());
 637			if (conversation.getMode() == Conversation.MODE_MULTI) {
 638				final Jid nextCounterpart = conversation.getNextCounterpart();
 639				if (nextCounterpart != null) {
 640					message.setCounterpart(nextCounterpart);
 641					message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
 642					message.setType(Message.TYPE_PRIVATE);
 643				}
 644			}
 645		} else {
 646			message = conversation.getCorrectingMessage();
 647			message.setBody(body);
 648			message.setEdited(message.getUuid());
 649			message.setUuid(UUID.randomUUID().toString());
 650		}
 651		switch (message.getConversation().getNextEncryption()) {
 652			case Message.ENCRYPTION_PGP:
 653				sendPgpMessage(message);
 654				break;
 655			case Message.ENCRYPTION_AXOLOTL:
 656				if (!trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 657					sendMessage(message);
 658				}
 659				break;
 660			default:
 661				sendMessage(message);
 662		}
 663	}
 664
 665	protected boolean trustKeysIfNeeded(int requestCode) {
 666		return trustKeysIfNeeded(requestCode, ATTACHMENT_CHOICE_INVALID);
 667	}
 668
 669	protected boolean trustKeysIfNeeded(int requestCode, int attachmentChoice) {
 670		AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 671		final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 672		boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 673		boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 674		boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 675		boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 676		boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 677		if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted) {
 678			axolotlService.createSessionsIfNeeded(conversation);
 679			Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 680			String[] contacts = new String[targets.size()];
 681			for (int i = 0; i < contacts.length; ++i) {
 682				contacts[i] = targets.get(i).toString();
 683			}
 684			intent.putExtra("contacts", contacts);
 685			intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 686			intent.putExtra("choice", attachmentChoice);
 687			intent.putExtra("conversation", conversation.getUuid());
 688			startActivityForResult(intent, requestCode);
 689			return true;
 690		} else {
 691			return false;
 692		}
 693	}
 694
 695	public void updateChatMsgHint() {
 696		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 697		if (conversation.getCorrectingMessage() != null) {
 698			this.binding.textinput.setHint(R.string.send_corrected_message);
 699		} else if (multi && conversation.getNextCounterpart() != null) {
 700			this.binding.textinput.setHint(getString(
 701					R.string.send_private_message_to,
 702					conversation.getNextCounterpart().getResource()));
 703		} else if (multi && !conversation.getMucOptions().participating()) {
 704			this.binding.textinput.setHint(R.string.you_are_not_participating);
 705		} else {
 706			this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 707			getActivity().invalidateOptionsMenu();
 708		}
 709	}
 710
 711	public void setupIme() {
 712		this.binding.textinput.refreshIme();
 713	}
 714
 715	private void handleActivityResult(ActivityResult activityResult) {
 716		if (activityResult.resultCode == Activity.RESULT_OK) {
 717			handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 718		} else {
 719			handleNegativeActivityResult(activityResult.requestCode);
 720		}
 721	}
 722
 723	private void handlePositiveActivityResult(int requestCode, final Intent data) {
 724		switch (requestCode) {
 725			case REQUEST_TRUST_KEYS_TEXT:
 726				final String body = this.binding.textinput.getText().toString();
 727				Message message = new Message(conversation, body, conversation.getNextEncryption());
 728				sendMessage(message);
 729				break;
 730			case REQUEST_TRUST_KEYS_MENU:
 731				int choice = data.getIntExtra("choice", ATTACHMENT_CHOICE_INVALID);
 732				selectPresenceToAttachFile(choice);
 733				break;
 734			case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 735				List<Uri> imageUris = AttachmentTool.extractUriFromIntent(data);
 736				for (Iterator<Uri> i = imageUris.iterator(); i.hasNext(); i.remove()) {
 737					Log.d(Config.LOGTAG, "ConversationsActivity.onActivityResult() - attaching image to conversations. CHOOSE_IMAGE");
 738					attachImageToConversation(conversation, i.next());
 739				}
 740				break;
 741			case ATTACHMENT_CHOICE_TAKE_PHOTO:
 742				Uri takePhotoUri = pendingTakePhotoUri.pop();
 743				if (takePhotoUri != null) {
 744					attachImageToConversation(conversation, takePhotoUri);
 745				} else {
 746					Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 747				}
 748				break;
 749			case ATTACHMENT_CHOICE_CHOOSE_FILE:
 750			case ATTACHMENT_CHOICE_RECORD_VIDEO:
 751			case ATTACHMENT_CHOICE_RECORD_VOICE:
 752				final List<Uri> fileUris = AttachmentTool.extractUriFromIntent(data);
 753				String type = data.getType();
 754				final PresenceSelector.OnPresenceSelected callback = () -> {
 755					for (Iterator<Uri> i = fileUris.iterator(); i.hasNext(); i.remove()) {
 756						Log.d(Config.LOGTAG, "ConversationsActivity.onActivityResult() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 757						attachFileToConversation(conversation, i.next(), type);
 758					}
 759				};
 760				if (conversation == null || conversation.getMode() == Conversation.MODE_MULTI || FileBackend.allFilesUnderSize(getActivity(), fileUris, getMaxHttpUploadSize(conversation))) {
 761					callback.onPresenceSelected();
 762				} else {
 763					activity.selectPresence(conversation, callback);
 764				}
 765				break;
 766			case ATTACHMENT_CHOICE_LOCATION:
 767				double latitude = data.getDoubleExtra("latitude", 0);
 768				double longitude = data.getDoubleExtra("longitude", 0);
 769				Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 770				attachLocationToConversation(conversation, geo);
 771				break;
 772			case REQUEST_INVITE_TO_CONVERSATION:
 773				XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 774				if (invite != null) {
 775					if (invite.execute(activity)) {
 776						activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 777						activity.mToast.show();
 778					}
 779				}
 780				break;
 781		}
 782	}
 783
 784	private void handleNegativeActivityResult(int requestCode) {
 785		switch (requestCode) {
 786			//nothing to do for now
 787		}
 788	}
 789
 790	@Override
 791	public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 792		super.onActivityResult(requestCode, resultCode, data);
 793		ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 794		if (activity != null && activity.xmppConnectionService != null) {
 795			handleActivityResult(activityResult);
 796		} else {
 797			this.postponedActivityResult.push(activityResult);
 798		}
 799	}
 800
 801	public void unblockConversation(final Blockable conversation) {
 802		activity.xmppConnectionService.sendUnblockRequest(conversation);
 803	}
 804
 805	@Override
 806	public void onAttach(Activity activity) {
 807		super.onAttach(activity);
 808		Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 809		if (activity instanceof ConversationsActivity) {
 810			this.activity = (ConversationsActivity) activity;
 811		} else {
 812			throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 813		}
 814	}
 815
 816	@Override
 817	public void onDetach() {
 818		super.onDetach();
 819		this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 820	}
 821
 822	@Override
 823	public void onCreate(Bundle savedInstanceState) {
 824		super.onCreate(savedInstanceState);
 825		setHasOptionsMenu(true);
 826	}
 827
 828	@Override
 829	public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 830		menuInflater.inflate(R.menu.fragment_conversation, menu);
 831		final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 832		final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 833		final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 834		final MenuItem menuMute = menu.findItem(R.id.action_mute);
 835		final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 836
 837
 838		if (conversation != null) {
 839			if (conversation.getMode() == Conversation.MODE_MULTI) {
 840				menuContactDetails.setVisible(false);
 841				menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 842			} else {
 843				menuContactDetails.setVisible(!this.conversation.withSelf());
 844				menuMucDetails.setVisible(false);
 845				final XmppConnectionService service = activity.xmppConnectionService;
 846				menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 847			}
 848			if (conversation.isMuted()) {
 849				menuMute.setVisible(false);
 850			} else {
 851				menuUnmute.setVisible(false);
 852			}
 853			ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 854			ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 855		}
 856		super.onCreateOptionsMenu(menu, menuInflater);
 857	}
 858
 859	@Override
 860	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 861		this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 862		binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 863
 864		binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 865
 866		binding.textinput.setOnEditorActionListener(mEditorActionListener);
 867		binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 868
 869		binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 870
 871		binding.messagesView.setOnScrollListener(mOnScrollListener);
 872		binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 873		messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
 874		messageListAdapter.setOnContactPictureClicked(message -> {
 875			final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
 876			if (received) {
 877				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 878					Jid user = message.getCounterpart();
 879					if (user != null && !user.isBareJid()) {
 880						final MucOptions mucOptions = message.getConversation().getMucOptions();
 881						if (mucOptions.participating() || message.getConversation().getNextCounterpart() != null) {
 882							if (!mucOptions.isUserInRoom(user)) {
 883								Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
 884							}
 885							highlightInConference(user.getResource());
 886						} else {
 887							Toast.makeText(getActivity(),R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
 888						}
 889					}
 890					return;
 891				} else {
 892					if (!message.getContact().isSelf()) {
 893						String fingerprint;
 894						if (message.getEncryption() == Message.ENCRYPTION_PGP
 895								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 896							fingerprint = "pgp";
 897						} else {
 898							fingerprint = message.getFingerprint();
 899						}
 900						activity.switchToContactDetails(message.getContact(), fingerprint);
 901						return;
 902					}
 903				}
 904			}
 905			Account account = message.getConversation().getAccount();
 906			Intent intent = new Intent(activity, EditAccountActivity.class);
 907			intent.putExtra("jid", account.getJid().asBareJid().toString());
 908			String fingerprint;
 909			if (message.getEncryption() == Message.ENCRYPTION_PGP
 910					|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 911				fingerprint = "pgp";
 912			} else {
 913				fingerprint = message.getFingerprint();
 914			}
 915			intent.putExtra("fingerprint", fingerprint);
 916			startActivity(intent);
 917		});
 918		messageListAdapter.setOnContactPictureLongClicked(message -> {
 919			if (message.getStatus() <= Message.STATUS_RECEIVED) {
 920				if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 921					final MucOptions mucOptions = conversation.getMucOptions();
 922					if (!mucOptions.allowPm()) {
 923						Toast.makeText(getActivity(), R.string.private_messages_are_disabled, Toast.LENGTH_SHORT).show();
 924						return;
 925					}
 926					Jid user = message.getCounterpart();
 927					if (user != null && !user.isBareJid()) {
 928						if (mucOptions.isUserInRoom(user)) {
 929							privateMessageWith(user);
 930						} else {
 931							Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
 932						}
 933					}
 934				}
 935			} else {
 936				activity.showQrCode(conversation.getAccount().getShareableUri());
 937			}
 938		});
 939		messageListAdapter.setOnQuoteListener(this::quoteText);
 940		binding.messagesView.setAdapter(messageListAdapter);
 941
 942		registerForContextMenu(binding.messagesView);
 943
 944		return binding.getRoot();
 945	}
 946
 947	private void quoteText(String text) {
 948		if (binding.textinput.isEnabled()) {
 949			text = text.replaceAll("(\n *){2,}", "\n").replaceAll("(^|\n)", "$1> ").replaceAll("\n$", "");
 950			Editable editable = binding.textinput.getEditableText();
 951			int position = binding.textinput.getSelectionEnd();
 952			if (position == -1) position = editable.length();
 953			if (position > 0 && editable.charAt(position - 1) != '\n') {
 954				editable.insert(position++, "\n");
 955			}
 956			editable.insert(position, text);
 957			position += text.length();
 958			editable.insert(position++, "\n");
 959			if (position < editable.length() && editable.charAt(position) != '\n') {
 960				editable.insert(position, "\n");
 961			}
 962			binding.textinput.setSelection(position);
 963			binding.textinput.requestFocus();
 964			InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
 965			if (inputMethodManager != null) {
 966				inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
 967			}
 968		}
 969	}
 970
 971	private static void hideSoftKeyboard(final Activity activity) {
 972		InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 973		View view = activity.getCurrentFocus();
 974		if (view != null && imm != null) {
 975			imm.hideSoftInputFromWindow(view.getWindowToken(),0);
 976		}
 977	}
 978
 979	private void quoteMessage(Message message) {
 980		quoteText(MessageUtils.prepareQuote(message));
 981	}
 982
 983	@Override
 984	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 985		synchronized (this.messageList) {
 986			super.onCreateContextMenu(menu, v, menuInfo);
 987			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 988			this.selectedMessage = this.messageList.get(acmi.position);
 989			populateContextMenu(menu);
 990		}
 991	}
 992
 993	private void populateContextMenu(ContextMenu menu) {
 994		final Message m = this.selectedMessage;
 995		final Transferable t = m.getTransferable();
 996		Message relevantForCorrection = m;
 997		while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
 998			relevantForCorrection = relevantForCorrection.next();
 999		}
1000		if (m.getType() != Message.TYPE_STATUS) {
1001			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
1002					&& m.getType() != Message.TYPE_PRIVATE
1003					&& t == null;
1004			final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1005					|| m.getEncryption() == Message.ENCRYPTION_PGP;
1006			activity.getMenuInflater().inflate(R.menu.message_context, menu);
1007			menu.setHeaderTitle(R.string.message_options);
1008			MenuItem copyMessage = menu.findItem(R.id.copy_message);
1009			MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1010			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1011			MenuItem correctMessage = menu.findItem(R.id.correct_message);
1012			MenuItem shareWith = menu.findItem(R.id.share_with);
1013			MenuItem sendAgain = menu.findItem(R.id.send_again);
1014			MenuItem copyUrl = menu.findItem(R.id.copy_url);
1015			MenuItem downloadFile = menu.findItem(R.id.download_file);
1016			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1017			MenuItem deleteFile = menu.findItem(R.id.delete_file);
1018			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1019			if (!treatAsFile && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1020				copyMessage.setVisible(true);
1021				quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
1022			}
1023			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
1024				retryDecryption.setVisible(true);
1025			}
1026			if (relevantForCorrection.getType() == Message.TYPE_TEXT
1027					&& relevantForCorrection.isLastCorrectableMessage()
1028					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
1029				correctMessage.setVisible(true);
1030			}
1031			if (treatAsFile || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1032				shareWith.setVisible(true);
1033			}
1034			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1035				sendAgain.setVisible(true);
1036			}
1037			if (m.hasFileOnRemoteHost()
1038					|| m.isGeoUri()
1039					|| m.treatAsDownloadable()
1040					|| (t != null && t instanceof HttpDownloadConnection)) {
1041				copyUrl.setVisible(true);
1042			}
1043			if ((m.isFileOrImage() && t instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())) {
1044				downloadFile.setVisible(true);
1045				downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1046			}
1047			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1048					|| m.getStatus() == Message.STATUS_UNSEND
1049					|| m.getStatus() == Message.STATUS_OFFERED;
1050			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
1051				cancelTransmission.setVisible(true);
1052			}
1053			if (treatAsFile) {
1054				String path = m.getRelativeFilePath();
1055				if (path == null || !path.startsWith("/")) {
1056					deleteFile.setVisible(true);
1057					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1058				}
1059			}
1060			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
1061				showErrorMessage.setVisible(true);
1062			}
1063		}
1064	}
1065
1066	@Override
1067	public boolean onContextItemSelected(MenuItem item) {
1068		switch (item.getItemId()) {
1069			case R.id.share_with:
1070				shareWith(selectedMessage);
1071				return true;
1072			case R.id.correct_message:
1073				correctMessage(selectedMessage);
1074				return true;
1075			case R.id.copy_message:
1076				copyMessage(selectedMessage);
1077				return true;
1078			case R.id.quote_message:
1079				quoteMessage(selectedMessage);
1080				return true;
1081			case R.id.send_again:
1082				resendMessage(selectedMessage);
1083				return true;
1084			case R.id.copy_url:
1085				copyUrl(selectedMessage);
1086				return true;
1087			case R.id.download_file:
1088				startDownloadable(selectedMessage);
1089				return true;
1090			case R.id.cancel_transmission:
1091				cancelTransmission(selectedMessage);
1092				return true;
1093			case R.id.retry_decryption:
1094				retryDecryption(selectedMessage);
1095				return true;
1096			case R.id.delete_file:
1097				deleteFile(selectedMessage);
1098				return true;
1099			case R.id.show_error_message:
1100				showErrorMessage(selectedMessage);
1101				return true;
1102			default:
1103				return super.onContextItemSelected(item);
1104		}
1105	}
1106
1107	@Override
1108	public boolean onOptionsItemSelected(final MenuItem item) {
1109		if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1110			return false;
1111		} else if (conversation == null) {
1112			return super.onOptionsItemSelected(item);
1113		}
1114		switch (item.getItemId()) {
1115			case R.id.encryption_choice_axolotl:
1116			case R.id.encryption_choice_pgp:
1117			case R.id.encryption_choice_none:
1118				handleEncryptionSelection(item);
1119				break;
1120			case R.id.attach_choose_picture:
1121			case R.id.attach_take_picture:
1122			case R.id.attach_record_video:
1123			case R.id.attach_choose_file:
1124			case R.id.attach_record_voice:
1125			case R.id.attach_location:
1126				handleAttachmentSelection(item);
1127				break;
1128			case R.id.action_archive:
1129				activity.xmppConnectionService.archiveConversation(conversation);
1130				activity.onConversationArchived(conversation);
1131				break;
1132			case R.id.action_contact_details:
1133				activity.switchToContactDetails(conversation.getContact());
1134				break;
1135			case R.id.action_muc_details:
1136				Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1137				intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1138				intent.putExtra("uuid", conversation.getUuid());
1139				startActivity(intent);
1140				break;
1141			case R.id.action_invite:
1142				startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1143				break;
1144			case R.id.action_clear_history:
1145				clearHistoryDialog(conversation);
1146				break;
1147			case R.id.action_mute:
1148				muteConversationDialog(conversation);
1149				break;
1150			case R.id.action_unmute:
1151				unmuteConversation(conversation);
1152				break;
1153			case R.id.action_block:
1154			case R.id.action_unblock:
1155				final Activity activity = getActivity();
1156				if (activity instanceof XmppActivity) {
1157					BlockContactDialog.show((XmppActivity) activity, conversation);
1158				}
1159				break;
1160			default:
1161				break;
1162		}
1163		return super.onOptionsItemSelected(item);
1164	}
1165
1166	private void handleAttachmentSelection(MenuItem item) {
1167		switch (item.getItemId()) {
1168			case R.id.attach_choose_picture:
1169				attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1170				break;
1171			case R.id.attach_take_picture:
1172				attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1173				break;
1174			case R.id.attach_record_video:
1175				attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1176				break;
1177			case R.id.attach_choose_file:
1178				attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1179				break;
1180			case R.id.attach_record_voice:
1181				attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1182				break;
1183			case R.id.attach_location:
1184				attachFile(ATTACHMENT_CHOICE_LOCATION);
1185				break;
1186		}
1187	}
1188
1189	private void handleEncryptionSelection(MenuItem item) {
1190		if (conversation == null) {
1191			return;
1192		}
1193		switch (item.getItemId()) {
1194			case R.id.encryption_choice_none:
1195				conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1196				item.setChecked(true);
1197				break;
1198			case R.id.encryption_choice_pgp:
1199				if (activity.hasPgp()) {
1200					if (conversation.getAccount().getPgpSignature() != null) {
1201						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1202						item.setChecked(true);
1203					} else {
1204						activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1205					}
1206				} else {
1207					activity.showInstallPgpDialog();
1208				}
1209				break;
1210			case R.id.encryption_choice_axolotl:
1211				Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1212						+ "Enabled axolotl for Contact " + conversation.getContact().getJid());
1213				conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1214				item.setChecked(true);
1215				break;
1216			default:
1217				conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1218				break;
1219		}
1220		activity.xmppConnectionService.updateConversation(conversation);
1221		updateChatMsgHint();
1222		getActivity().invalidateOptionsMenu();
1223		activity.refreshUi();
1224	}
1225
1226	public void attachFile(final int attachmentChoice) {
1227		if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1228			if (!hasStorageAndCameraPermission(attachmentChoice)) {
1229				return;
1230			}
1231		} else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1232			if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(attachmentChoice)) {
1233				return;
1234			}
1235		}
1236		try {
1237			activity.getPreferences().edit()
1238					.putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1239					.apply();
1240		} catch (IllegalArgumentException e) {
1241			//just do not save
1242		}
1243		final int encryption = conversation.getNextEncryption();
1244		final int mode = conversation.getMode();
1245		if (encryption == Message.ENCRYPTION_PGP) {
1246			if (activity.hasPgp()) {
1247				if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1248					activity.xmppConnectionService.getPgpEngine().hasKey(
1249							conversation.getContact(),
1250							new UiCallback<Contact>() {
1251
1252								@Override
1253								public void userInputRequried(PendingIntent pi, Contact contact) {
1254									startPendingIntent(pi, attachmentChoice);
1255								}
1256
1257								@Override
1258								public void success(Contact contact) {
1259									selectPresenceToAttachFile(attachmentChoice);
1260								}
1261
1262								@Override
1263								public void error(int error, Contact contact) {
1264									activity.replaceToast(getString(error));
1265								}
1266							});
1267				} else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1268					if (!conversation.getMucOptions().everybodyHasKeys()) {
1269						Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1270						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1271						warning.show();
1272					}
1273					selectPresenceToAttachFile(attachmentChoice);
1274				} else {
1275					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
1276							.findFragmentByTag("conversation");
1277					if (fragment != null) {
1278						fragment.showNoPGPKeyDialog(false, (dialog, which) -> {
1279							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1280							activity.xmppConnectionService.updateConversation(conversation);
1281							selectPresenceToAttachFile(attachmentChoice);
1282						});
1283					}
1284				}
1285			} else {
1286				activity.showInstallPgpDialog();
1287			}
1288		} else {
1289			if (encryption != Message.ENCRYPTION_AXOLOTL || !trustKeysIfNeeded(REQUEST_TRUST_KEYS_MENU, attachmentChoice)) {
1290				selectPresenceToAttachFile(attachmentChoice);
1291			}
1292		}
1293	}
1294
1295	@Override
1296	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
1297		if (grantResults.length > 0)
1298			if (allGranted(grantResults)) {
1299				if (requestCode == REQUEST_START_DOWNLOAD) {
1300					if (this.mPendingDownloadableMessage != null) {
1301						startDownloadable(this.mPendingDownloadableMessage);
1302					}
1303				} else if (requestCode == REQUEST_ADD_EDITOR_CONTENT) {
1304					if (this.mPendingEditorContent != null) {
1305						attachImageToConversation(this.mPendingEditorContent);
1306					}
1307				} else {
1308					attachFile(requestCode);
1309				}
1310			} else {
1311				@StringRes int res;
1312				if (Manifest.permission.CAMERA.equals(getFirstDenied(grantResults, permissions))) {
1313					res = R.string.no_camera_permission;
1314				} else {
1315					res = R.string.no_storage_permission;
1316				}
1317				Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1318			}
1319	}
1320
1321	public void startDownloadable(Message message) {
1322		if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(REQUEST_START_DOWNLOAD)) {
1323			this.mPendingDownloadableMessage = message;
1324			return;
1325		}
1326		Transferable transferable = message.getTransferable();
1327		if (transferable != null) {
1328			if (transferable instanceof TransferablePlaceholder && message.treatAsDownloadable()) {
1329				activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1330				return;
1331			}
1332			if (!transferable.start()) {
1333				Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1334			}
1335		} else if (message.treatAsDownloadable()) {
1336			activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1337		}
1338	}
1339
1340	@SuppressLint("InflateParams")
1341	protected void clearHistoryDialog(final Conversation conversation) {
1342		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1343		builder.setTitle(getString(R.string.clear_conversation_history));
1344		final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1345		final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1346		builder.setView(dialogView);
1347		builder.setNegativeButton(getString(R.string.cancel), null);
1348		builder.setPositiveButton(getString(R.string.delete_messages), (dialog, which) -> {
1349			this.activity.xmppConnectionService.clearConversationHistory(conversation);
1350			if (endConversationCheckBox.isChecked()) {
1351				this.activity.xmppConnectionService.archiveConversation(conversation);
1352				this.activity.onConversationArchived(conversation);
1353			} else {
1354				activity.onConversationsListItemUpdated();
1355				refresh();
1356			}
1357		});
1358		builder.create().show();
1359	}
1360
1361	protected void muteConversationDialog(final Conversation conversation) {
1362		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1363		builder.setTitle(R.string.disable_notifications);
1364		final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1365		final CharSequence[] labels = new CharSequence[durations.length];
1366		for (int i = 0; i < durations.length; ++i) {
1367			if (durations[i] == -1) {
1368				labels[i] = getString(R.string.until_further_notice);
1369			} else {
1370				labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1371			}
1372		}
1373		builder.setItems(labels, (dialog, which) -> {
1374			final long till;
1375			if (durations[which] == -1) {
1376				till = Long.MAX_VALUE;
1377			} else {
1378				till = System.currentTimeMillis() + (durations[which] * 1000);
1379			}
1380			conversation.setMutedTill(till);
1381			activity.xmppConnectionService.updateConversation(conversation);
1382			activity.onConversationsListItemUpdated();
1383			refresh();
1384			getActivity().invalidateOptionsMenu();
1385		});
1386		builder.create().show();
1387	}
1388
1389	private boolean hasStoragePermission(int requestCode) {
1390		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1391			if (activity.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
1392				requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
1393				return false;
1394			} else {
1395				return true;
1396			}
1397		} else {
1398			return true;
1399		}
1400	}
1401
1402	private boolean hasStorageAndCameraPermission(int requestCode) {
1403		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1404			List<String> missingPermissions = new ArrayList<>();
1405			if (!Config.ONLY_INTERNAL_STORAGE && activity.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
1406				missingPermissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
1407			}
1408			if (activity.checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
1409				missingPermissions.add(Manifest.permission.CAMERA);
1410			}
1411			if (missingPermissions.size() == 0) {
1412				return true;
1413			} else {
1414				requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1415				return false;
1416			}
1417		} else {
1418			return true;
1419		}
1420	}
1421
1422	public void unmuteConversation(final Conversation conversation) {
1423		conversation.setMutedTill(0);
1424		this.activity.xmppConnectionService.updateConversation(conversation);
1425		this.activity.onConversationsListItemUpdated();
1426		refresh();
1427		getActivity().invalidateOptionsMenu();
1428	}
1429
1430	protected void selectPresenceToAttachFile(final int attachmentChoice) {
1431		final Account account = conversation.getAccount();
1432		final PresenceSelector.OnPresenceSelected callback = () -> {
1433			Intent intent = new Intent();
1434			boolean chooser = false;
1435			String fallbackPackageId = null;
1436			switch (attachmentChoice) {
1437				case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1438					intent.setAction(Intent.ACTION_GET_CONTENT);
1439					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1440						intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1441					}
1442					intent.setType("image/*");
1443					chooser = true;
1444					break;
1445				case ATTACHMENT_CHOICE_RECORD_VIDEO:
1446					intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1447					break;
1448				case ATTACHMENT_CHOICE_TAKE_PHOTO:
1449					final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1450					pendingTakePhotoUri.push(uri);
1451					intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1452					intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1453					intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1454					intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1455					break;
1456				case ATTACHMENT_CHOICE_CHOOSE_FILE:
1457					chooser = true;
1458					intent.setType("*/*");
1459					intent.addCategory(Intent.CATEGORY_OPENABLE);
1460					intent.setAction(Intent.ACTION_GET_CONTENT);
1461					break;
1462				case ATTACHMENT_CHOICE_RECORD_VOICE:
1463					intent.setAction(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
1464					fallbackPackageId = "eu.siacs.conversations.voicerecorder";
1465					break;
1466				case ATTACHMENT_CHOICE_LOCATION:
1467					intent.setAction("eu.siacs.conversations.location.request");
1468					fallbackPackageId = "eu.siacs.conversations.sharelocation";
1469					break;
1470			}
1471			if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1472				if (chooser) {
1473					startActivityForResult(
1474							Intent.createChooser(intent, getString(R.string.perform_action_with)),
1475							attachmentChoice);
1476				} else {
1477					startActivityForResult(intent, attachmentChoice);
1478				}
1479			} else if (fallbackPackageId != null) {
1480				startActivity(getInstallApkIntent(fallbackPackageId));
1481			}
1482		};
1483		if (account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) {
1484			conversation.setNextCounterpart(null);
1485			callback.onPresenceSelected();
1486		} else {
1487			activity.selectPresence(conversation, callback);
1488		}
1489	}
1490
1491	private Intent getInstallApkIntent(final String packageId) {
1492		Intent intent = new Intent(Intent.ACTION_VIEW);
1493		intent.setData(Uri.parse("market://details?id=" + packageId));
1494		if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1495			return intent;
1496		} else {
1497			intent.setData(Uri.parse("http://play.google.com/store/apps/details?id=" + packageId));
1498			return intent;
1499		}
1500	}
1501
1502	@Override
1503	public void onResume() {
1504		new Handler().post(() -> {
1505			final Activity activity = getActivity();
1506			if (activity == null) {
1507				return;
1508			}
1509			final PackageManager packageManager = activity.getPackageManager();
1510			ConversationMenuConfigurator.updateAttachmentAvailability(packageManager);
1511			getActivity().invalidateOptionsMenu();
1512		});
1513		super.onResume();
1514		if (activity != null && this.conversation != null) {
1515			activity.onConversationRead(this.conversation);
1516		}
1517	}
1518
1519	private void showErrorMessage(final Message message) {
1520		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1521		builder.setTitle(R.string.error_message);
1522		builder.setMessage(message.getErrorMessage());
1523		builder.setPositiveButton(R.string.confirm, null);
1524		builder.create().show();
1525	}
1526
1527	private void shareWith(Message message) {
1528		Intent shareIntent = new Intent();
1529		shareIntent.setAction(Intent.ACTION_SEND);
1530		if (message.isGeoUri()) {
1531			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
1532			shareIntent.setType("text/plain");
1533		} else if (!message.isFileOrImage()) {
1534			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getMergedBody().toString());
1535			shareIntent.setType("text/plain");
1536		} else {
1537			final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1538			try {
1539				shareIntent.putExtra(Intent.EXTRA_STREAM, FileBackend.getUriForFile(getActivity(), file));
1540			} catch (SecurityException e) {
1541				Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
1542				return;
1543			}
1544			shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1545			String mime = message.getMimeType();
1546			if (mime == null) {
1547				mime = "*/*";
1548			}
1549			shareIntent.setType(mime);
1550		}
1551		try {
1552			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
1553		} catch (ActivityNotFoundException e) {
1554			//This should happen only on faulty androids because normally chooser is always available
1555			Toast.makeText(getActivity(), R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
1556		}
1557	}
1558
1559	private void copyMessage(Message message) {
1560		if (activity.copyTextToClipboard(message.getMergedBody().toString(), R.string.message)) {
1561			Toast.makeText(getActivity(), R.string.message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1562		}
1563	}
1564
1565	private void deleteFile(Message message) {
1566		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1567			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1568			activity.onConversationsListItemUpdated();
1569			refresh();
1570		}
1571	}
1572
1573	private void resendMessage(final Message message) {
1574		if (message.isFileOrImage()) {
1575			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1576			if (file.exists()) {
1577				final Conversation conversation = message.getConversation();
1578				final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1579				if (!message.hasFileOnRemoteHost()
1580						&& xmppConnection != null
1581						&& !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1582					activity.selectPresence(conversation, () -> {
1583						message.setCounterpart(conversation.getNextCounterpart());
1584						activity.xmppConnectionService.resendFailedMessages(message);
1585						new Handler().post(() -> {
1586							int size = messageList.size();
1587							this.binding.messagesView.setSelection(size - 1);
1588						});
1589					});
1590					return;
1591				}
1592			} else {
1593				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1594				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1595				activity.onConversationsListItemUpdated();
1596				refresh();
1597				return;
1598			}
1599		}
1600		activity.xmppConnectionService.resendFailedMessages(message);
1601		new Handler().post(() -> {
1602			int size = messageList.size();
1603			this.binding.messagesView.setSelection(size - 1);
1604		});
1605	}
1606
1607	private void copyUrl(Message message) {
1608		final String url;
1609		final int resId;
1610		if (message.isGeoUri()) {
1611			resId = R.string.location;
1612			url = message.getBody();
1613		} else if (message.hasFileOnRemoteHost()) {
1614			resId = R.string.file_url;
1615			url = message.getFileParams().url.toString();
1616		} else {
1617			url = message.getBody().trim();
1618			resId = R.string.file_url;
1619		}
1620		if (activity.copyTextToClipboard(url, resId)) {
1621			Toast.makeText(getActivity(), R.string.url_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1622		}
1623	}
1624
1625	private void cancelTransmission(Message message) {
1626		Transferable transferable = message.getTransferable();
1627		if (transferable != null) {
1628			transferable.cancel();
1629		} else if (message.getStatus() != Message.STATUS_RECEIVED) {
1630			activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
1631		}
1632	}
1633
1634	private void retryDecryption(Message message) {
1635		message.setEncryption(Message.ENCRYPTION_PGP);
1636		activity.onConversationsListItemUpdated();
1637		refresh();
1638		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1639	}
1640
1641	private void privateMessageWith(final Jid counterpart) {
1642		if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1643			activity.xmppConnectionService.sendChatState(conversation);
1644		}
1645		this.binding.textinput.setText("");
1646		this.conversation.setNextCounterpart(counterpart);
1647		updateChatMsgHint();
1648		updateSendButton();
1649		updateEditablity();
1650	}
1651
1652	private void correctMessage(Message message) {
1653		while (message.mergeable(message.next())) {
1654			message = message.next();
1655		}
1656		this.conversation.setCorrectingMessage(message);
1657		final Editable editable = binding.textinput.getText();
1658		this.conversation.setDraftMessage(editable.toString());
1659		this.binding.textinput.setText("");
1660		this.binding.textinput.append(message.getBody());
1661
1662	}
1663
1664	private void highlightInConference(String nick) {
1665		final Editable editable = this.binding.textinput.getText();
1666		String oldString = editable.toString().trim();
1667		final int pos = this.binding.textinput.getSelectionStart();
1668		if (oldString.isEmpty() || pos == 0) {
1669			editable.insert(0, nick + ": ");
1670		} else {
1671			final char before = editable.charAt(pos - 1);
1672			final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1673			if (before == '\n') {
1674				editable.insert(pos, nick + ": ");
1675			} else {
1676				if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1677					if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1678						editable.insert(pos - 2, ", " + nick);
1679						return;
1680					}
1681				}
1682				editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1683				if (Character.isWhitespace(after)) {
1684					this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1685				}
1686			}
1687		}
1688	}
1689
1690	@Override
1691	public void onSaveInstanceState(Bundle outState) {
1692		super.onSaveInstanceState(outState);
1693		if (conversation != null) {
1694			outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1695			final Uri uri = pendingTakePhotoUri.peek();
1696			if (uri != null) {
1697				outState.putString(STATE_PHOTO_URI, uri.toString());
1698			}
1699			final ScrollState scrollState = getScrollPosition();
1700			if (scrollState != null) {
1701				outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1702			}
1703		}
1704	}
1705
1706	@Override
1707	public void onActivityCreated(Bundle savedInstanceState) {
1708		super.onActivityCreated(savedInstanceState);
1709		if (savedInstanceState == null) {
1710			return;
1711		}
1712		String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1713		if (uuid != null) {
1714			this.pendingConversationsUuid.push(uuid);
1715			String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1716			if (takePhotoUri != null) {
1717				pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1718			}
1719			pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1720		}
1721	}
1722
1723	@Override
1724	public void onStart() {
1725		super.onStart();
1726		if (this.reInitRequiredOnStart) {
1727			final Bundle extras = pendingExtras.pop();
1728			reInit(conversation, extras != null);
1729			if (extras != null) {
1730				processExtras(extras);
1731			}
1732		} else {
1733			Log.d(Config.LOGTAG, "skipped reinit on start");
1734		}
1735	}
1736
1737	@Override
1738	public void onStop() {
1739		super.onStop();
1740		final Activity activity = getActivity();
1741		if (activity == null || !activity.isChangingConfigurations()) {
1742			hideSoftKeyboard(activity);
1743			messageListAdapter.stopAudioPlayer();
1744		}
1745		if (this.conversation != null) {
1746			final String msg = this.binding.textinput.getText().toString();
1747			if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && this.conversation.setNextMessage(msg)) {
1748				this.activity.xmppConnectionService.updateConversation(this.conversation);
1749			}
1750			updateChatState(this.conversation, msg);
1751			this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1752		}
1753		this.reInitRequiredOnStart = true;
1754	}
1755
1756	private void updateChatState(final Conversation conversation, final String msg) {
1757		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
1758		Account.State status = conversation.getAccount().getStatus();
1759		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1760			activity.xmppConnectionService.sendChatState(conversation);
1761		}
1762	}
1763
1764	private void saveMessageDraftStopAudioPlayer() {
1765		final Conversation previousConversation = this.conversation;
1766		if (this.activity == null || this.binding == null || previousConversation == null) {
1767			return;
1768		}
1769		Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1770		final String msg = this.binding.textinput.getText().toString();
1771		if (previousConversation.setNextMessage(msg)) {
1772			activity.xmppConnectionService.updateConversation(previousConversation);
1773		}
1774		updateChatState(this.conversation, msg);
1775		messageListAdapter.stopAudioPlayer();
1776	}
1777
1778	public void reInit(Conversation conversation, Bundle extras) {
1779		this.saveMessageDraftStopAudioPlayer();
1780		if (this.reInit(conversation, extras != null)) {
1781			if (extras != null) {
1782				processExtras(extras);
1783			}
1784			this.reInitRequiredOnStart = false;
1785		} else {
1786			this.reInitRequiredOnStart = true;
1787			pendingExtras.push(extras);
1788		}
1789	}
1790
1791	private void reInit(Conversation conversation) {
1792		reInit(conversation, false);
1793	}
1794
1795	private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1796		if (conversation == null) {
1797			return false;
1798		}
1799		this.conversation = conversation;
1800		//once we set the conversation all is good and it will automatically do the right thing in onStart()
1801		if (this.activity == null || this.binding == null) {
1802			return false;
1803		}
1804		stopScrolling();
1805		Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1806
1807		if (this.conversation.isRead() && hasExtras) {
1808			Log.d(Config.LOGTAG, "trimming conversation");
1809			this.conversation.trim();
1810		}
1811
1812		setupIme();
1813
1814		final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1815
1816		this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1817		this.binding.textinput.setKeyboardListener(null);
1818		this.binding.textinput.setText("");
1819		this.binding.textinput.append(this.conversation.getNextMessage());
1820		this.binding.textinput.setKeyboardListener(this);
1821		messageListAdapter.updatePreferences();
1822		refresh(false);
1823		this.conversation.messagesLoaded.set(true);
1824
1825		Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1826
1827		if (hasExtras || scrolledToBottomAndNoPending) {
1828			synchronized (this.messageList) {
1829				Log.d(Config.LOGTAG, "jump to first unread message");
1830				final Message first = conversation.getFirstUnreadMessage();
1831				final int bottom = Math.max(0, this.messageList.size() - 1);
1832				final int pos;
1833				if (first == null) {
1834					pos = bottom;
1835				} else {
1836					int i = getIndexOf(first.getUuid(), this.messageList);
1837					pos = i < 0 ? bottom : i;
1838				}
1839				setSelection(pos);
1840			}
1841		}
1842
1843		activity.onConversationRead(this.conversation);
1844		//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
1845		activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1846		return true;
1847	}
1848
1849	private void setSelection(int pos) {
1850		this.binding.messagesView.setSelection(pos);
1851		this.binding.messagesView.post(() -> this.binding.messagesView.setSelection(pos));
1852	}
1853
1854	private boolean scrolledToBottom() {
1855		if (this.binding == null) {
1856			return false;
1857		}
1858		final ListView listView = this.binding.messagesView;
1859		if (listView.getLastVisiblePosition() == listView.getAdapter().getCount() - 1) {
1860			final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
1861			return lastChild != null && lastChild.getBottom() <= listView.getHeight();
1862		} else {
1863			return false;
1864		}
1865	}
1866
1867	private void processExtras(Bundle extras) {
1868		final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
1869		final String text = extras.getString(ConversationsActivity.EXTRA_TEXT);
1870		final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
1871		final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
1872		if (nick != null) {
1873			if (pm) {
1874				Jid jid = conversation.getJid();
1875				try {
1876					Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
1877					privateMessageWith(next);
1878				} catch (final IllegalArgumentException ignored) {
1879					//do nothing
1880				}
1881			} else {
1882				final MucOptions mucOptions = conversation.getMucOptions();
1883				if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
1884					highlightInConference(nick);
1885				}
1886			}
1887		} else {
1888			appendText(text);
1889		}
1890		final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
1891		if (message != null) {
1892			startDownloadable(message);
1893		}
1894	}
1895
1896	private boolean showBlockSubmenu(View view) {
1897		final Jid jid = conversation.getJid();
1898		if (jid.getLocal() == null) {
1899			BlockContactDialog.show(activity, conversation);
1900		} else {
1901			PopupMenu popupMenu = new PopupMenu(getActivity(), view);
1902			popupMenu.inflate(R.menu.block);
1903			popupMenu.setOnMenuItemClickListener(menuItem -> {
1904				Blockable blockable;
1905				switch (menuItem.getItemId()) {
1906					case R.id.block_domain:
1907						blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
1908						break;
1909					default:
1910						blockable = conversation;
1911				}
1912				BlockContactDialog.show(activity, blockable);
1913				return true;
1914			});
1915			popupMenu.show();
1916		}
1917		return true;
1918	}
1919
1920	private void updateSnackBar(final Conversation conversation) {
1921		final Account account = conversation.getAccount();
1922		final XmppConnection connection = account.getXmppConnection();
1923		final int mode = conversation.getMode();
1924		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
1925		if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
1926			return;
1927		}
1928		if (account.getStatus() == Account.State.DISABLED) {
1929			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
1930		} else if (conversation.isBlocked()) {
1931			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
1932		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1933			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
1934		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1935			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
1936		} else if (mode == Conversation.MODE_MULTI
1937				&& !conversation.getMucOptions().online()
1938				&& account.getStatus() == Account.State.ONLINE) {
1939			switch (conversation.getMucOptions().getError()) {
1940				case NICK_IN_USE:
1941					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
1942					break;
1943				case NO_RESPONSE:
1944					showSnackbar(R.string.joining_conference, 0, null);
1945					break;
1946				case SERVER_NOT_FOUND:
1947					if (conversation.receivedMessagesCount() > 0) {
1948						showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
1949					} else {
1950						showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
1951					}
1952					break;
1953				case PASSWORD_REQUIRED:
1954					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
1955					break;
1956				case BANNED:
1957					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
1958					break;
1959				case MEMBERS_ONLY:
1960					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
1961					break;
1962				case KICKED:
1963					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
1964					break;
1965				case UNKNOWN:
1966					showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
1967					break;
1968				case INVALID_NICK:
1969					showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
1970				case SHUTDOWN:
1971					showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
1972					break;
1973				default:
1974					hideSnackbar();
1975					break;
1976			}
1977		} else if (account.hasPendingPgpIntent(conversation)) {
1978			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
1979		} else if (connection != null
1980				&& connection.getFeatures().blocking()
1981				&& conversation.countMessages() != 0
1982				&& !conversation.isBlocked()
1983				&& conversation.isWithStranger()) {
1984			showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
1985		} else {
1986			hideSnackbar();
1987		}
1988	}
1989
1990	@Override
1991	public void refresh() {
1992		if (this.binding == null) {
1993			Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
1994			return;
1995		}
1996		this.refresh(true);
1997	}
1998
1999	private void refresh(boolean notifyConversationRead) {
2000		synchronized (this.messageList) {
2001			if (this.conversation != null) {
2002				conversation.populateWithMessages(this.messageList);
2003				updateSnackBar(conversation);
2004				updateStatusMessages();
2005				this.messageListAdapter.notifyDataSetChanged();
2006				updateChatMsgHint();
2007				if (notifyConversationRead && activity != null) {
2008					activity.onConversationRead(this.conversation);
2009				}
2010				updateSendButton();
2011				updateEditablity();
2012			}
2013		}
2014	}
2015
2016	protected void messageSent() {
2017		mSendingPgpMessage.set(false);
2018		this.binding.textinput.setText("");
2019		if (conversation.setCorrectingMessage(null)) {
2020			this.binding.textinput.append(conversation.getDraftMessage());
2021			conversation.setDraftMessage(null);
2022		}
2023		if (conversation.setNextMessage(this.binding.textinput.getText().toString())) {
2024			activity.xmppConnectionService.updateConversation(conversation);
2025		}
2026		updateChatMsgHint();
2027		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2028		final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2029		if (prefScrollToBottom || scrolledToBottom()) {
2030			new Handler().post(() -> {
2031				int size = messageList.size();
2032				this.binding.messagesView.setSelection(size - 1);
2033			});
2034		}
2035	}
2036
2037	public void setFocusOnInputField() {
2038		this.binding.textinput.requestFocus();
2039	}
2040
2041	public void doneSendingPgpMessage() {
2042		mSendingPgpMessage.set(false);
2043	}
2044
2045	public long getMaxHttpUploadSize(Conversation conversation) {
2046		final XmppConnection connection = conversation.getAccount().getXmppConnection();
2047		return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2048	}
2049
2050	private void updateEditablity() {
2051		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2052		this.binding.textinput.setFocusable(canWrite);
2053		this.binding.textinput.setFocusableInTouchMode(canWrite);
2054		this.binding.textSendButton.setEnabled(canWrite);
2055		this.binding.textinput.setCursorVisible(canWrite);
2056	}
2057
2058	public void updateSendButton() {
2059		boolean useSendButtonToIndicateStatus = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("send_button_status", getResources().getBoolean(R.bool.send_button_status));
2060		final Conversation c = this.conversation;
2061		final Presence.Status status;
2062		final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2063		final SendButtonAction action = SendButtonTool.getAction(getActivity(), c, text);
2064		if (useSendButtonToIndicateStatus && c.getAccount().getStatus() == Account.State.ONLINE) {
2065			if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2066				status = Presence.Status.OFFLINE;
2067			} else if (c.getMode() == Conversation.MODE_SINGLE) {
2068				status = c.getContact().getShownStatus();
2069			} else {
2070				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2071			}
2072		} else {
2073			status = Presence.Status.OFFLINE;
2074		}
2075		this.binding.textSendButton.setTag(action);
2076		this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(getActivity(), action, status));
2077	}
2078
2079	protected void updateDateSeparators() {
2080		synchronized (this.messageList) {
2081			for (int i = 0; i < this.messageList.size(); ++i) {
2082				final Message current = this.messageList.get(i);
2083				if (i == 0 || !UIHelper.sameDay(this.messageList.get(i - 1).getTimeSent(), current.getTimeSent())) {
2084					this.messageList.add(i, Message.createDateSeparator(current));
2085					i++;
2086				}
2087			}
2088		}
2089	}
2090
2091	protected void updateStatusMessages() {
2092		updateDateSeparators();
2093		synchronized (this.messageList) {
2094			if (showLoadMoreMessages(conversation)) {
2095				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2096			}
2097			if (conversation.getMode() == Conversation.MODE_SINGLE) {
2098				ChatState state = conversation.getIncomingChatState();
2099				if (state == ChatState.COMPOSING) {
2100					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2101				} else if (state == ChatState.PAUSED) {
2102					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2103				} else {
2104					for (int i = this.messageList.size() - 1; i >= 0; --i) {
2105						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
2106							return;
2107						} else {
2108							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
2109								this.messageList.add(i + 1,
2110										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2111								return;
2112							}
2113						}
2114					}
2115				}
2116			} else {
2117				final MucOptions mucOptions = conversation.getMucOptions();
2118				final List<MucOptions.User> allUsers = mucOptions.getUsers();
2119				final Set<ReadByMarker> addedMarkers = new HashSet<>();
2120				ChatState state = ChatState.COMPOSING;
2121				List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2122				if (users.size() == 0) {
2123					state = ChatState.PAUSED;
2124					users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2125				}
2126				if (mucOptions.isPrivateAndNonAnonymous()) {
2127					for (int i = this.messageList.size() - 1; i >= 0; --i) {
2128						final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2129						final List<MucOptions.User> shownMarkers = new ArrayList<>();
2130						for (ReadByMarker marker : markersForMessage) {
2131							if (!ReadByMarker.contains(marker, addedMarkers)) {
2132								addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2133								MucOptions.User user = mucOptions.findUser(marker);
2134								if (user != null && !users.contains(user)) {
2135									shownMarkers.add(user);
2136								}
2137							}
2138						}
2139						final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2140						final Message statusMessage;
2141						final int size = shownMarkers.size();
2142						if (size > 1) {
2143							final String body;
2144							if (size <= 4) {
2145								body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2146							} else {
2147								body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2148							}
2149							statusMessage = Message.createStatusMessage(conversation, body);
2150							statusMessage.setCounterparts(shownMarkers);
2151						} else if (size == 1) {
2152							statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2153							statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2154							statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2155						} else {
2156							statusMessage = null;
2157						}
2158						if (statusMessage != null) {
2159							this.messageList.add(i + 1, statusMessage);
2160						}
2161						addedMarkers.add(markerForSender);
2162						if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2163							break;
2164						}
2165					}
2166				}
2167				if (users.size() > 0) {
2168					Message statusMessage;
2169					if (users.size() == 1) {
2170						MucOptions.User user = users.get(0);
2171						int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2172						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2173						statusMessage.setTrueCounterpart(user.getRealJid());
2174						statusMessage.setCounterpart(user.getFullJid());
2175					} else {
2176						int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2177						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2178						statusMessage.setCounterparts(users);
2179					}
2180					this.messageList.add(statusMessage);
2181				}
2182
2183			}
2184		}
2185	}
2186
2187	private void stopScrolling() {
2188		long now = SystemClock.uptimeMillis();
2189		MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2190		binding.messagesView.dispatchTouchEvent(cancel);
2191	}
2192
2193	private boolean showLoadMoreMessages(final Conversation c) {
2194		if (activity == null || activity.xmppConnectionService == null) {
2195			return false;
2196		}
2197		final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2198		final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2199		return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2200	}
2201
2202	private boolean hasMamSupport(final Conversation c) {
2203		if (c.getMode() == Conversation.MODE_SINGLE) {
2204			final XmppConnection connection = c.getAccount().getXmppConnection();
2205			return connection != null && connection.getFeatures().mam();
2206		} else {
2207			return c.getMucOptions().mamSupport();
2208		}
2209	}
2210
2211	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2212		showSnackbar(message, action, clickListener, null);
2213	}
2214
2215	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2216		this.binding.snackbar.setVisibility(View.VISIBLE);
2217		this.binding.snackbar.setOnClickListener(null);
2218		this.binding.snackbarMessage.setText(message);
2219		this.binding.snackbarMessage.setOnClickListener(null);
2220		this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2221		if (action != 0) {
2222			this.binding.snackbarAction.setText(action);
2223		}
2224		this.binding.snackbarAction.setOnClickListener(clickListener);
2225		this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2226	}
2227
2228	protected void hideSnackbar() {
2229		this.binding.snackbar.setVisibility(View.GONE);
2230	}
2231
2232	protected void sendMessage(Message message) {
2233		activity.xmppConnectionService.sendMessage(message);
2234		messageSent();
2235	}
2236
2237	protected void sendPgpMessage(final Message message) {
2238		final XmppConnectionService xmppService = activity.xmppConnectionService;
2239		final Contact contact = message.getConversation().getContact();
2240		if (!activity.hasPgp()) {
2241			activity.showInstallPgpDialog();
2242			return;
2243		}
2244		if (conversation.getAccount().getPgpSignature() == null) {
2245			activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2246			return;
2247		}
2248		if (!mSendingPgpMessage.compareAndSet(false, true)) {
2249			Log.d(Config.LOGTAG, "sending pgp message already in progress");
2250		}
2251		if (conversation.getMode() == Conversation.MODE_SINGLE) {
2252			if (contact.getPgpKeyId() != 0) {
2253				xmppService.getPgpEngine().hasKey(contact,
2254						new UiCallback<Contact>() {
2255
2256							@Override
2257							public void userInputRequried(PendingIntent pi, Contact contact) {
2258								startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2259							}
2260
2261							@Override
2262							public void success(Contact contact) {
2263								encryptTextMessage(message);
2264							}
2265
2266							@Override
2267							public void error(int error, Contact contact) {
2268								activity.runOnUiThread(() -> Toast.makeText(activity,
2269										R.string.unable_to_connect_to_keychain,
2270										Toast.LENGTH_SHORT
2271								).show());
2272								mSendingPgpMessage.set(false);
2273							}
2274						});
2275
2276			} else {
2277				showNoPGPKeyDialog(false, (dialog, which) -> {
2278					conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2279					xmppService.updateConversation(conversation);
2280					message.setEncryption(Message.ENCRYPTION_NONE);
2281					xmppService.sendMessage(message);
2282					messageSent();
2283				});
2284			}
2285		} else {
2286			if (conversation.getMucOptions().pgpKeysInUse()) {
2287				if (!conversation.getMucOptions().everybodyHasKeys()) {
2288					Toast warning = Toast
2289							.makeText(getActivity(),
2290									R.string.missing_public_keys,
2291									Toast.LENGTH_LONG);
2292					warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2293					warning.show();
2294				}
2295				encryptTextMessage(message);
2296			} else {
2297				showNoPGPKeyDialog(true, (dialog, which) -> {
2298					conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2299					message.setEncryption(Message.ENCRYPTION_NONE);
2300					xmppService.updateConversation(conversation);
2301					xmppService.sendMessage(message);
2302					messageSent();
2303				});
2304			}
2305		}
2306	}
2307
2308	public void encryptTextMessage(Message message) {
2309		activity.xmppConnectionService.getPgpEngine().encrypt(message,
2310				new UiCallback<Message>() {
2311
2312					@Override
2313					public void userInputRequried(PendingIntent pi, Message message) {
2314						startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2315					}
2316
2317					@Override
2318					public void success(Message message) {
2319						//TODO the following two call can be made before the callback
2320						getActivity().runOnUiThread(() -> messageSent());
2321					}
2322
2323					@Override
2324					public void error(final int error, Message message) {
2325						getActivity().runOnUiThread(() -> {
2326							doneSendingPgpMessage();
2327							Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
2328						});
2329
2330					}
2331				});
2332	}
2333
2334	public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2335		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2336		builder.setIconAttribute(android.R.attr.alertDialogIcon);
2337		if (plural) {
2338			builder.setTitle(getString(R.string.no_pgp_keys));
2339			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2340		} else {
2341			builder.setTitle(getString(R.string.no_pgp_key));
2342			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2343		}
2344		builder.setNegativeButton(getString(R.string.cancel), null);
2345		builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2346		builder.create().show();
2347	}
2348
2349	public void appendText(String text) {
2350		if (text == null) {
2351			return;
2352		}
2353		String previous = this.binding.textinput.getText().toString();
2354		if (previous.length() != 0 && !previous.endsWith(" ")) {
2355			text = " " + text;
2356		}
2357		this.binding.textinput.append(text);
2358	}
2359
2360	@Override
2361	public boolean onEnterPressed() {
2362		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2363		final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2364		if (enterIsSend) {
2365			sendMessage();
2366			return true;
2367		} else {
2368			return false;
2369		}
2370	}
2371
2372	@Override
2373	public void onTypingStarted() {
2374		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2375		if (service == null) {
2376			return;
2377		}
2378		Account.State status = conversation.getAccount().getStatus();
2379		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2380			service.sendChatState(conversation);
2381		}
2382		updateSendButton();
2383	}
2384
2385	@Override
2386	public void onTypingStopped() {
2387		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2388		if (service == null) {
2389			return;
2390		}
2391		Account.State status = conversation.getAccount().getStatus();
2392		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2393			service.sendChatState(conversation);
2394		}
2395	}
2396
2397	@Override
2398	public void onTextDeleted() {
2399		final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2400		if (service == null) {
2401			return;
2402		}
2403		Account.State status = conversation.getAccount().getStatus();
2404		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
2405			service.sendChatState(conversation);
2406		}
2407		updateSendButton();
2408	}
2409
2410	@Override
2411	public void onTextChanged() {
2412		if (conversation != null && conversation.getCorrectingMessage() != null) {
2413			updateSendButton();
2414		}
2415	}
2416
2417	@Override
2418	public boolean onTabPressed(boolean repeated) {
2419		if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2420			return false;
2421		}
2422		if (repeated) {
2423			completionIndex++;
2424		} else {
2425			lastCompletionLength = 0;
2426			completionIndex = 0;
2427			final String content = this.binding.textinput.getText().toString();
2428			lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2429			int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2430			firstWord = start == 0;
2431			incomplete = content.substring(start, lastCompletionCursor);
2432		}
2433		List<String> completions = new ArrayList<>();
2434		for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2435			String name = user.getName();
2436			if (name != null && name.startsWith(incomplete)) {
2437				completions.add(name + (firstWord ? ": " : " "));
2438			}
2439		}
2440		Collections.sort(completions);
2441		if (completions.size() > completionIndex) {
2442			String completion = completions.get(completionIndex).substring(incomplete.length());
2443			this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2444			this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2445			lastCompletionLength = completion.length();
2446		} else {
2447			completionIndex = -1;
2448			this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2449			lastCompletionLength = 0;
2450		}
2451		return true;
2452	}
2453
2454	private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2455		try {
2456			getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2457		} catch (final SendIntentException ignored) {
2458		}
2459	}
2460
2461	@Override
2462	public void onBackendConnected() {
2463		Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2464		String uuid = pendingConversationsUuid.pop();
2465		if (uuid != null) {
2466			Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2467			if (conversation == null) {
2468				Log.d(Config.LOGTAG, "unable to restore activity");
2469				clearPending();
2470				return;
2471			}
2472			reInit(conversation);
2473			ScrollState scrollState = pendingScrollState.pop();
2474			if (scrollState != null) {
2475				setScrollPosition(scrollState);
2476			}
2477		}
2478		ActivityResult activityResult = postponedActivityResult.pop();
2479		if (activityResult != null) {
2480			handleActivityResult(activityResult);
2481		}
2482		clearPending();
2483	}
2484
2485	private void clearPending() {
2486		if (postponedActivityResult.pop() != null) {
2487			Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2488		}
2489		pendingScrollState.pop();
2490		if (pendingTakePhotoUri.pop() != null) {
2491			Log.e(Config.LOGTAG, "cleared pending photo uri");
2492		}
2493	}
2494
2495	public Conversation getConversation() {
2496		return conversation;
2497	}
2498}