ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import android.support.annotation.IdRes;
  15import android.support.annotation.NonNull;
  16import android.support.annotation.StringRes;
  17import android.support.v7.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  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.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.LayoutInflater;
  36import android.view.Menu;
  37import android.view.MenuInflater;
  38import android.view.MenuItem;
  39import android.view.MotionEvent;
  40import android.view.View;
  41import android.view.View.OnClickListener;
  42import android.view.ViewGroup;
  43import android.view.inputmethod.EditorInfo;
  44import android.view.inputmethod.InputMethodManager;
  45import android.widget.AbsListView;
  46import android.widget.AbsListView.OnScrollListener;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.CheckBox;
  50import android.widget.ListView;
  51import android.widget.PopupMenu;
  52import android.widget.TextView.OnEditorActionListener;
  53import android.widget.Toast;
  54
  55import java.util.ArrayList;
  56import java.util.Arrays;
  57import java.util.Collections;
  58import java.util.HashSet;
  59import java.util.Iterator;
  60import java.util.List;
  61import java.util.Set;
  62import java.util.UUID;
  63import java.util.concurrent.atomic.AtomicBoolean;
  64
  65import eu.siacs.conversations.Config;
  66import eu.siacs.conversations.R;
  67import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  68import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  69import eu.siacs.conversations.databinding.FragmentConversationBinding;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Blockable;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.Conversational;
  75import eu.siacs.conversations.entities.DownloadableFile;
  76import eu.siacs.conversations.entities.Message;
  77import eu.siacs.conversations.entities.MucOptions;
  78import eu.siacs.conversations.entities.MucOptions.User;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.entities.ReadByMarker;
  81import eu.siacs.conversations.entities.Transferable;
  82import eu.siacs.conversations.entities.TransferablePlaceholder;
  83import eu.siacs.conversations.http.HttpDownloadConnection;
  84import eu.siacs.conversations.persistance.FileBackend;
  85import eu.siacs.conversations.services.AppRTCAudioManager;
  86import eu.siacs.conversations.services.MessageArchiveService;
  87import eu.siacs.conversations.services.QuickConversationsService;
  88import eu.siacs.conversations.services.XmppConnectionService;
  89import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  90import eu.siacs.conversations.ui.adapter.MessageAdapter;
  91import eu.siacs.conversations.ui.util.ActivityResult;
  92import eu.siacs.conversations.ui.util.Attachment;
  93import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  94import eu.siacs.conversations.ui.util.DateSeparator;
  95import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  96import eu.siacs.conversations.ui.util.ListViewUtils;
  97import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  98import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
  99import eu.siacs.conversations.ui.util.PendingItem;
 100import eu.siacs.conversations.ui.util.PresenceSelector;
 101import eu.siacs.conversations.ui.util.ScrollState;
 102import eu.siacs.conversations.ui.util.SendButtonAction;
 103import eu.siacs.conversations.ui.util.SendButtonTool;
 104import eu.siacs.conversations.ui.util.ShareUtil;
 105import eu.siacs.conversations.ui.util.ViewUtil;
 106import eu.siacs.conversations.ui.widget.EditMessage;
 107import eu.siacs.conversations.utils.AccountUtils;
 108import eu.siacs.conversations.utils.Compatibility;
 109import eu.siacs.conversations.utils.GeoHelper;
 110import eu.siacs.conversations.utils.MessageUtils;
 111import eu.siacs.conversations.utils.NickValidityChecker;
 112import eu.siacs.conversations.utils.Patterns;
 113import eu.siacs.conversations.utils.PermissionUtils;
 114import eu.siacs.conversations.utils.QuickLoader;
 115import eu.siacs.conversations.utils.StylingHelper;
 116import eu.siacs.conversations.utils.TimeframeUtils;
 117import eu.siacs.conversations.utils.UIHelper;
 118import eu.siacs.conversations.xmpp.XmppConnection;
 119import eu.siacs.conversations.xmpp.chatstate.ChatState;
 120import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 121import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 122import rocks.xmpp.addr.Jid;
 123
 124import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 125import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 126import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 127import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 128import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 129import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 130
 131
 132public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 133
 134
 135    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 136    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 137    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 138    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 139    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 140    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 141    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 142    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 143    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 144    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 145    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 146    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 147    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 148    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 149    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 150    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 151    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 152
 153    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 154    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 155    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 156    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 157    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 158    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 159
 160    private final List<Message> messageList = new ArrayList<>();
 161    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 162    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 163    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 164    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 165    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 166    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 167    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 168    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 169    public Uri mPendingEditorContent = null;
 170    protected MessageAdapter messageListAdapter;
 171    private MediaPreviewAdapter mediaPreviewAdapter;
 172    private String lastMessageUuid = null;
 173    private Conversation conversation;
 174    private FragmentConversationBinding binding;
 175    private Toast messageLoaderToast;
 176    private ConversationsActivity activity;
 177    private boolean reInitRequiredOnStart = true;
 178    private OnClickListener clickToMuc = new OnClickListener() {
 179
 180        @Override
 181        public void onClick(View v) {
 182            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 183            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 184            intent.putExtra("uuid", conversation.getUuid());
 185            startActivity(intent);
 186        }
 187    };
 188    private OnClickListener leaveMuc = new OnClickListener() {
 189
 190        @Override
 191        public void onClick(View v) {
 192            activity.xmppConnectionService.archiveConversation(conversation);
 193        }
 194    };
 195    private OnClickListener joinMuc = new OnClickListener() {
 196
 197        @Override
 198        public void onClick(View v) {
 199            activity.xmppConnectionService.joinMuc(conversation);
 200        }
 201    };
 202
 203    private OnClickListener acceptJoin = new OnClickListener() {
 204        @Override
 205        public void onClick(View v) {
 206            conversation.setAttribute("accept_non_anonymous", true);
 207            activity.xmppConnectionService.updateConversation(conversation);
 208            activity.xmppConnectionService.joinMuc(conversation);
 209        }
 210    };
 211
 212    private OnClickListener enterPassword = new OnClickListener() {
 213
 214        @Override
 215        public void onClick(View v) {
 216            MucOptions muc = conversation.getMucOptions();
 217            String password = muc.getPassword();
 218            if (password == null) {
 219                password = "";
 220            }
 221            activity.quickPasswordEdit(password, value -> {
 222                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 223                return null;
 224            });
 225        }
 226    };
 227    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 228
 229        @Override
 230        public void onScrollStateChanged(AbsListView view, int scrollState) {
 231            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 232                fireReadEvent();
 233            }
 234        }
 235
 236        @Override
 237        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 238            toggleScrollDownButton(view);
 239            synchronized (ConversationFragment.this.messageList) {
 240                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 241                    long timestamp;
 242                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 243                        timestamp = messageList.get(1).getTimeSent();
 244                    } else {
 245                        timestamp = messageList.get(0).getTimeSent();
 246                    }
 247                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 248                        @Override
 249                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 250                            if (ConversationFragment.this.conversation != conversation) {
 251                                conversation.messagesLoaded.set(true);
 252                                return;
 253                            }
 254                            runOnUiThread(() -> {
 255                                synchronized (messageList) {
 256                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 257                                    Message message = null;
 258                                    int childPos;
 259                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 260                                        message = messageList.get(oldPosition + childPos);
 261                                        if (message.getType() != Message.TYPE_STATUS) {
 262                                            break;
 263                                        }
 264                                    }
 265                                    final String uuid = message != null ? message.getUuid() : null;
 266                                    View v = binding.messagesView.getChildAt(childPos);
 267                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 268                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 269                                    try {
 270                                        updateStatusMessages();
 271                                    } catch (IllegalStateException e) {
 272                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 273                                    }
 274                                    messageListAdapter.notifyDataSetChanged();
 275                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 276                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 277                                    if (messageLoaderToast != null) {
 278                                        messageLoaderToast.cancel();
 279                                    }
 280                                    conversation.messagesLoaded.set(true);
 281                                }
 282                            });
 283                        }
 284
 285                        @Override
 286                        public void informUser(final int resId) {
 287
 288                            runOnUiThread(() -> {
 289                                if (messageLoaderToast != null) {
 290                                    messageLoaderToast.cancel();
 291                                }
 292                                if (ConversationFragment.this.conversation != conversation) {
 293                                    return;
 294                                }
 295                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 296                                messageLoaderToast.show();
 297                            });
 298
 299                        }
 300                    });
 301
 302                }
 303            }
 304        }
 305    };
 306    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 307        @Override
 308        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 309            // try to get permission to read the image, if applicable
 310            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 311                try {
 312                    inputContentInfo.requestPermission();
 313                } catch (Exception e) {
 314                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 315                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 316                    ).show();
 317                    return false;
 318                }
 319            }
 320            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 321                attachEditorContentToConversation(inputContentInfo.getContentUri());
 322            } else {
 323                mPendingEditorContent = inputContentInfo.getContentUri();
 324            }
 325            return true;
 326        }
 327    };
 328    private Message selectedMessage;
 329    private OnClickListener mEnableAccountListener = new OnClickListener() {
 330        @Override
 331        public void onClick(View v) {
 332            final Account account = conversation == null ? null : conversation.getAccount();
 333            if (account != null) {
 334                account.setOption(Account.OPTION_DISABLED, false);
 335                activity.xmppConnectionService.updateAccount(account);
 336            }
 337        }
 338    };
 339    private OnClickListener mUnblockClickListener = new OnClickListener() {
 340        @Override
 341        public void onClick(final View v) {
 342            v.post(() -> v.setVisibility(View.INVISIBLE));
 343            if (conversation.isDomainBlocked()) {
 344                BlockContactDialog.show(activity, conversation);
 345            } else {
 346                unblockConversation(conversation);
 347            }
 348        }
 349    };
 350    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 351    private OnClickListener mAddBackClickListener = new OnClickListener() {
 352
 353        @Override
 354        public void onClick(View v) {
 355            final Contact contact = conversation == null ? null : conversation.getContact();
 356            if (contact != null) {
 357                activity.xmppConnectionService.createContact(contact, true);
 358                activity.switchToContactDetails(contact);
 359            }
 360        }
 361    };
 362    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 363    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 364        @Override
 365        public void onClick(View v) {
 366            final Contact contact = conversation == null ? null : conversation.getContact();
 367            if (contact != null) {
 368                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 369                        activity.xmppConnectionService.getPresenceGenerator()
 370                                .sendPresenceUpdatesTo(contact));
 371                hideSnackbar();
 372            }
 373        }
 374    };
 375    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 376
 377        @Override
 378        public void onClick(View v) {
 379            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 380            if (pendingIntent != null) {
 381                try {
 382                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 383                            REQUEST_DECRYPT_PGP,
 384                            null,
 385                            0,
 386                            0,
 387                            0);
 388                } catch (SendIntentException e) {
 389                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 390                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 391                }
 392            }
 393            updateSnackBar(conversation);
 394        }
 395    };
 396    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 397    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 398        if (actionId == EditorInfo.IME_ACTION_SEND) {
 399            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 400            if (imm != null && imm.isFullscreenMode()) {
 401                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 402            }
 403            sendMessage();
 404            return true;
 405        } else {
 406            return false;
 407        }
 408    };
 409    private OnClickListener mScrollButtonListener = new OnClickListener() {
 410
 411        @Override
 412        public void onClick(View v) {
 413            stopScrolling();
 414            setSelection(binding.messagesView.getCount() - 1, true);
 415        }
 416    };
 417    private OnClickListener mSendButtonListener = new OnClickListener() {
 418
 419        @Override
 420        public void onClick(View v) {
 421            Object tag = v.getTag();
 422            if (tag instanceof SendButtonAction) {
 423                SendButtonAction action = (SendButtonAction) tag;
 424                switch (action) {
 425                    case TAKE_PHOTO:
 426                    case RECORD_VIDEO:
 427                    case SEND_LOCATION:
 428                    case RECORD_VOICE:
 429                    case CHOOSE_PICTURE:
 430                        attachFile(action.toChoice());
 431                        break;
 432                    case CANCEL:
 433                        if (conversation != null) {
 434                            if (conversation.setCorrectingMessage(null)) {
 435                                binding.textinput.setText("");
 436                                binding.textinput.append(conversation.getDraftMessage());
 437                                conversation.setDraftMessage(null);
 438                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 439                                conversation.setNextCounterpart(null);
 440                                binding.textinput.setText("");
 441                            } else {
 442                                binding.textinput.setText("");
 443                            }
 444                            updateChatMsgHint();
 445                            updateSendButton();
 446                            updateEditablity();
 447                        }
 448                        break;
 449                    default:
 450                        sendMessage();
 451                }
 452            } else {
 453                sendMessage();
 454            }
 455        }
 456    };
 457    private int completionIndex = 0;
 458    private int lastCompletionLength = 0;
 459    private String incomplete;
 460    private int lastCompletionCursor;
 461    private boolean firstWord = false;
 462    private Message mPendingDownloadableMessage;
 463
 464    private static ConversationFragment findConversationFragment(Activity activity) {
 465        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 466        if (fragment instanceof ConversationFragment) {
 467            return (ConversationFragment) fragment;
 468        }
 469        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 470        if (fragment instanceof ConversationFragment) {
 471            return (ConversationFragment) fragment;
 472        }
 473        return null;
 474    }
 475
 476    public static void startStopPending(Activity activity) {
 477        ConversationFragment fragment = findConversationFragment(activity);
 478        if (fragment != null) {
 479            fragment.messageListAdapter.startStopPending();
 480        }
 481    }
 482
 483    public static void downloadFile(Activity activity, Message message) {
 484        ConversationFragment fragment = findConversationFragment(activity);
 485        if (fragment != null) {
 486            fragment.startDownloadable(message);
 487        }
 488    }
 489
 490    public static void registerPendingMessage(Activity activity, Message message) {
 491        ConversationFragment fragment = findConversationFragment(activity);
 492        if (fragment != null) {
 493            fragment.pendingMessage.push(message);
 494        }
 495    }
 496
 497    public static void openPendingMessage(Activity activity) {
 498        ConversationFragment fragment = findConversationFragment(activity);
 499        if (fragment != null) {
 500            Message message = fragment.pendingMessage.pop();
 501            if (message != null) {
 502                fragment.messageListAdapter.openDownloadable(message);
 503            }
 504        }
 505    }
 506
 507    public static Conversation getConversation(Activity activity) {
 508        return getConversation(activity, R.id.secondary_fragment);
 509    }
 510
 511    private static Conversation getConversation(Activity activity, @IdRes int res) {
 512        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 513        if (fragment != null && fragment instanceof ConversationFragment) {
 514            return ((ConversationFragment) fragment).getConversation();
 515        } else {
 516            return null;
 517        }
 518    }
 519
 520    public static ConversationFragment get(Activity activity) {
 521        FragmentManager fragmentManager = activity.getFragmentManager();
 522        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 523        if (fragment != null && fragment instanceof ConversationFragment) {
 524            return (ConversationFragment) fragment;
 525        } else {
 526            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 527            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 528        }
 529    }
 530
 531    public static Conversation getConversationReliable(Activity activity) {
 532        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 533        if (conversation != null) {
 534            return conversation;
 535        }
 536        return getConversation(activity, R.id.main_fragment);
 537    }
 538
 539    private static boolean scrolledToBottom(AbsListView listView) {
 540        final int count = listView.getCount();
 541        if (count == 0) {
 542            return true;
 543        } else if (listView.getLastVisiblePosition() == count - 1) {
 544            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 545            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 546        } else {
 547            return false;
 548        }
 549    }
 550
 551    private void toggleScrollDownButton() {
 552        toggleScrollDownButton(binding.messagesView);
 553    }
 554
 555    private void toggleScrollDownButton(AbsListView listView) {
 556        if (conversation == null) {
 557            return;
 558        }
 559        if (scrolledToBottom(listView)) {
 560            lastMessageUuid = null;
 561            hideUnreadMessagesCount();
 562        } else {
 563            binding.scrollToBottomButton.setEnabled(true);
 564            binding.scrollToBottomButton.show();
 565            if (lastMessageUuid == null) {
 566                lastMessageUuid = conversation.getLatestMessage().getUuid();
 567            }
 568            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 569                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 570            }
 571        }
 572    }
 573
 574    private int getIndexOf(String uuid, List<Message> messages) {
 575        if (uuid == null) {
 576            return messages.size() - 1;
 577        }
 578        for (int i = 0; i < messages.size(); ++i) {
 579            if (uuid.equals(messages.get(i).getUuid())) {
 580                return i;
 581            } else {
 582                Message next = messages.get(i);
 583                while (next != null && next.wasMergedIntoPrevious()) {
 584                    if (uuid.equals(next.getUuid())) {
 585                        return i;
 586                    }
 587                    next = next.next();
 588                }
 589
 590            }
 591        }
 592        return -1;
 593    }
 594
 595    private ScrollState getScrollPosition() {
 596        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 597        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 598            return null;
 599        } else {
 600            final int pos = listView.getFirstVisiblePosition();
 601            final View view = listView.getChildAt(0);
 602            if (view == null) {
 603                return null;
 604            } else {
 605                return new ScrollState(pos, view.getTop());
 606            }
 607        }
 608    }
 609
 610    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 611        if (scrollPosition != null) {
 612
 613            this.lastMessageUuid = lastMessageUuid;
 614            if (lastMessageUuid != null) {
 615                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 616            }
 617            //TODO maybe this needs a 'post'
 618            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 619            toggleScrollDownButton();
 620        }
 621    }
 622
 623    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 624        if (conversation == null) {
 625            return;
 626        }
 627        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 628
 629            @Override
 630            public void success(Message message) {
 631
 632            }
 633
 634            @Override
 635            public void error(int errorCode, Message object) {
 636                //TODO show possible pgp error
 637            }
 638
 639            @Override
 640            public void userInputRequired(PendingIntent pi, Message object) {
 641
 642            }
 643        });
 644    }
 645
 646    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 647        if (conversation == null) {
 648            return;
 649        }
 650        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 651        prepareFileToast.show();
 652        activity.delegateUriPermissionsToService(uri);
 653        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 654            @Override
 655            public void inform(final String text) {
 656                hidePrepareFileToast(prepareFileToast);
 657                runOnUiThread(() -> activity.replaceToast(text));
 658            }
 659
 660            @Override
 661            public void success(Message message) {
 662                runOnUiThread(() -> activity.hideToast());
 663                hidePrepareFileToast(prepareFileToast);
 664            }
 665
 666            @Override
 667            public void error(final int errorCode, Message message) {
 668                hidePrepareFileToast(prepareFileToast);
 669                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 670
 671            }
 672
 673            @Override
 674            public void userInputRequired(PendingIntent pi, Message message) {
 675                hidePrepareFileToast(prepareFileToast);
 676            }
 677        });
 678    }
 679
 680    public void attachEditorContentToConversation(Uri uri) {
 681        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 682        toggleInputMethod();
 683    }
 684
 685    private void attachImageToConversation(Conversation conversation, Uri uri) {
 686        if (conversation == null) {
 687            return;
 688        }
 689        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 690        prepareFileToast.show();
 691        activity.delegateUriPermissionsToService(uri);
 692        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 693                new UiCallback<Message>() {
 694
 695                    @Override
 696                    public void userInputRequired(PendingIntent pi, Message object) {
 697                        hidePrepareFileToast(prepareFileToast);
 698                    }
 699
 700                    @Override
 701                    public void success(Message message) {
 702                        hidePrepareFileToast(prepareFileToast);
 703                    }
 704
 705                    @Override
 706                    public void error(final int error, Message message) {
 707                        hidePrepareFileToast(prepareFileToast);
 708                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 709                    }
 710                });
 711    }
 712
 713    private void hidePrepareFileToast(final Toast prepareFileToast) {
 714        if (prepareFileToast != null && activity != null) {
 715            activity.runOnUiThread(prepareFileToast::cancel);
 716        }
 717    }
 718
 719    private void sendMessage() {
 720        if (mediaPreviewAdapter.hasAttachments()) {
 721            commitAttachments();
 722            return;
 723        }
 724        final Editable text = this.binding.textinput.getText();
 725        final String body = text == null ? "" : text.toString();
 726        final Conversation conversation = this.conversation;
 727        if (body.length() == 0 || conversation == null) {
 728            return;
 729        }
 730        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 731            return;
 732        }
 733        final Message message;
 734        if (conversation.getCorrectingMessage() == null) {
 735            message = new Message(conversation, body, conversation.getNextEncryption());
 736            Message.configurePrivateMessage(message);
 737        } else {
 738            message = conversation.getCorrectingMessage();
 739            message.setBody(body);
 740            message.putEdited(message.getUuid(), message.getServerMsgId());
 741            message.setServerMsgId(null);
 742            message.setUuid(UUID.randomUUID().toString());
 743        }
 744        switch (conversation.getNextEncryption()) {
 745            case Message.ENCRYPTION_PGP:
 746                sendPgpMessage(message);
 747                break;
 748            default:
 749                sendMessage(message);
 750        }
 751    }
 752
 753    protected boolean trustKeysIfNeeded(int requestCode) {
 754        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 755        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 756        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 757        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 758        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 759        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 760        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 761        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 762        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 763            axolotlService.createSessionsIfNeeded(conversation);
 764            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 765            String[] contacts = new String[targets.size()];
 766            for (int i = 0; i < contacts.length; ++i) {
 767                contacts[i] = targets.get(i).toString();
 768            }
 769            intent.putExtra("contacts", contacts);
 770            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 771            intent.putExtra("conversation", conversation.getUuid());
 772            startActivityForResult(intent, requestCode);
 773            return true;
 774        } else {
 775            return false;
 776        }
 777    }
 778
 779    public void updateChatMsgHint() {
 780        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 781        if (conversation.getCorrectingMessage() != null) {
 782            this.binding.textInputHint.setVisibility(View.GONE);
 783            this.binding.textinput.setHint(R.string.send_corrected_message);
 784        } else if (multi && conversation.getNextCounterpart() != null) {
 785            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 786            this.binding.textInputHint.setVisibility(View.VISIBLE);
 787            this.binding.textInputHint.setText(getString(
 788                    R.string.send_private_message_to,
 789                    conversation.getNextCounterpart().getResource()));
 790        } else if (multi && !conversation.getMucOptions().participating()) {
 791            this.binding.textInputHint.setVisibility(View.GONE);
 792            this.binding.textinput.setHint(R.string.you_are_not_participating);
 793        } else {
 794            this.binding.textInputHint.setVisibility(View.GONE);
 795            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 796            getActivity().invalidateOptionsMenu();
 797        }
 798    }
 799
 800    public void setupIme() {
 801        this.binding.textinput.refreshIme();
 802    }
 803
 804    private void handleActivityResult(ActivityResult activityResult) {
 805        if (activityResult.resultCode == Activity.RESULT_OK) {
 806            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 807        } else {
 808            handleNegativeActivityResult(activityResult.requestCode);
 809        }
 810    }
 811
 812    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 813        switch (requestCode) {
 814            case REQUEST_TRUST_KEYS_TEXT:
 815                sendMessage();
 816                break;
 817            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 818                commitAttachments();
 819                break;
 820            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 821                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 822                mediaPreviewAdapter.addMediaPreviews(imageUris);
 823                toggleInputMethod();
 824                break;
 825            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 826                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 827                if (takePhotoUri != null) {
 828                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 829                    toggleInputMethod();
 830                } else {
 831                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 832                }
 833                break;
 834            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 835            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 836            case ATTACHMENT_CHOICE_RECORD_VOICE:
 837                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 838                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 839                mediaPreviewAdapter.addMediaPreviews(fileUris);
 840                toggleInputMethod();
 841                break;
 842            case ATTACHMENT_CHOICE_LOCATION:
 843                double latitude = data.getDoubleExtra("latitude", 0);
 844                double longitude = data.getDoubleExtra("longitude", 0);
 845                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 846                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 847                toggleInputMethod();
 848                break;
 849            case REQUEST_INVITE_TO_CONVERSATION:
 850                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 851                if (invite != null) {
 852                    if (invite.execute(activity)) {
 853                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 854                        activity.mToast.show();
 855                    }
 856                }
 857                break;
 858        }
 859    }
 860
 861    private void commitAttachments() {
 862        if (!hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 863            return;
 864        }
 865        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 866            return;
 867        }
 868        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 869        final PresenceSelector.OnPresenceSelected callback = () -> {
 870            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 871                final Attachment attachment = i.next();
 872                if (attachment.getType() == Attachment.Type.LOCATION) {
 873                    attachLocationToConversation(conversation, attachment.getUri());
 874                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 875                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 876                    attachImageToConversation(conversation, attachment.getUri());
 877                } else {
 878                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 879                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 880                }
 881            }
 882            mediaPreviewAdapter.notifyDataSetChanged();
 883            toggleInputMethod();
 884        };
 885        if (conversation == null
 886                || conversation.getMode() == Conversation.MODE_MULTI
 887                || Attachment.canBeSendInband(attachments)
 888                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 889            callback.onPresenceSelected();
 890        } else {
 891            activity.selectPresence(conversation, callback);
 892        }
 893    }
 894
 895    public void toggleInputMethod() {
 896        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 897        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 898        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 899        updateSendButton();
 900    }
 901
 902    private void handleNegativeActivityResult(int requestCode) {
 903        switch (requestCode) {
 904            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 905                if (pendingTakePhotoUri.clear()) {
 906                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 907                }
 908                break;
 909        }
 910    }
 911
 912    @Override
 913    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 914        super.onActivityResult(requestCode, resultCode, data);
 915        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 916        if (activity != null && activity.xmppConnectionService != null) {
 917            handleActivityResult(activityResult);
 918        } else {
 919            this.postponedActivityResult.push(activityResult);
 920        }
 921    }
 922
 923    public void unblockConversation(final Blockable conversation) {
 924        activity.xmppConnectionService.sendUnblockRequest(conversation);
 925    }
 926
 927    @Override
 928    public void onAttach(Activity activity) {
 929        super.onAttach(activity);
 930        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 931        if (activity instanceof ConversationsActivity) {
 932            this.activity = (ConversationsActivity) activity;
 933        } else {
 934            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 935        }
 936    }
 937
 938    @Override
 939    public void onDetach() {
 940        super.onDetach();
 941        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 942    }
 943
 944    @Override
 945    public void onCreate(Bundle savedInstanceState) {
 946        super.onCreate(savedInstanceState);
 947        setHasOptionsMenu(true);
 948    }
 949
 950    @Override
 951    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 952        menuInflater.inflate(R.menu.fragment_conversation, menu);
 953        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 954        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 955        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 956        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 957        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 958        final MenuItem menuCall = menu.findItem(R.id.action_call);
 959        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 960
 961
 962        if (conversation != null) {
 963            if (conversation.getMode() == Conversation.MODE_MULTI) {
 964                menuContactDetails.setVisible(false);
 965                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 966                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 967                menuCall.setVisible(false);
 968            } else {
 969                final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 970                menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 971                menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 972                menuContactDetails.setVisible(!this.conversation.withSelf());
 973                menuMucDetails.setVisible(false);
 974                final XmppConnectionService service = activity.xmppConnectionService;
 975                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 976            }
 977            if (conversation.isMuted()) {
 978                menuMute.setVisible(false);
 979            } else {
 980                menuUnmute.setVisible(false);
 981            }
 982            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 983            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 984        }
 985        super.onCreateOptionsMenu(menu, menuInflater);
 986    }
 987
 988    @Override
 989    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 990        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 991        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 992
 993        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 994
 995        binding.textinput.setOnEditorActionListener(mEditorActionListener);
 996        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 997
 998        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 999
1000        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1001        binding.messagesView.setOnScrollListener(mOnScrollListener);
1002        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1003        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1004        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1005        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1006        messageListAdapter.setOnContactPictureClicked(this);
1007        messageListAdapter.setOnContactPictureLongClicked(this);
1008        messageListAdapter.setOnQuoteListener(this::quoteText);
1009        binding.messagesView.setAdapter(messageListAdapter);
1010
1011        registerForContextMenu(binding.messagesView);
1012
1013        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1014            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1015        }
1016
1017        return binding.getRoot();
1018    }
1019
1020    private void quoteText(String text) {
1021        if (binding.textinput.isEnabled()) {
1022            binding.textinput.insertAsQuote(text);
1023            binding.textinput.requestFocus();
1024            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1025            if (inputMethodManager != null) {
1026                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1027            }
1028        }
1029    }
1030
1031    private void quoteMessage(Message message) {
1032        quoteText(MessageUtils.prepareQuote(message));
1033    }
1034
1035    @Override
1036    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1037        synchronized (this.messageList) {
1038            super.onCreateContextMenu(menu, v, menuInfo);
1039            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1040            this.selectedMessage = this.messageList.get(acmi.position);
1041            populateContextMenu(menu);
1042        }
1043    }
1044
1045    private void populateContextMenu(ContextMenu menu) {
1046        final Message m = this.selectedMessage;
1047        final Transferable t = m.getTransferable();
1048        Message relevantForCorrection = m;
1049        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1050            relevantForCorrection = relevantForCorrection.next();
1051        }
1052        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1053
1054            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1055                return;
1056            }
1057
1058            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1059                return;
1060            }
1061
1062            final boolean deleted = m.isDeleted();
1063            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1064                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1065            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1066            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1067            menu.setHeaderTitle(R.string.message_options);
1068            MenuItem openWith = menu.findItem(R.id.open_with);
1069            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1070            MenuItem copyLink = menu.findItem(R.id.copy_link);
1071            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1072            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1073            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1074            MenuItem shareWith = menu.findItem(R.id.share_with);
1075            MenuItem sendAgain = menu.findItem(R.id.send_again);
1076            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1077            MenuItem downloadFile = menu.findItem(R.id.download_file);
1078            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1079            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1080            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1081            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1082            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1083                copyMessage.setVisible(true);
1084                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1085                String body = m.getMergedBody().toString();
1086                if (ShareUtil.containsXmppUri(body)) {
1087                    copyLink.setTitle(R.string.copy_jabber_id);
1088                    copyLink.setVisible(true);
1089                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1090                    copyLink.setVisible(true);
1091                }
1092            }
1093            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1094                retryDecryption.setVisible(true);
1095            }
1096            if (!showError
1097                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1098                    && !m.isGeoUri()
1099                    && relevantForCorrection.isLastCorrectableMessage()
1100                    && m.getConversation() instanceof Conversation) {
1101                correctMessage.setVisible(true);
1102            }
1103            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1104                shareWith.setVisible(true);
1105            }
1106            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1107                sendAgain.setVisible(true);
1108            }
1109            if (m.hasFileOnRemoteHost()
1110                    || m.isGeoUri()
1111                    || m.treatAsDownloadable()
1112                    || t instanceof HttpDownloadConnection) {
1113                copyUrl.setVisible(true);
1114            }
1115            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1116                downloadFile.setVisible(true);
1117                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1118            }
1119            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1120                    || m.getStatus() == Message.STATUS_UNSEND
1121                    || m.getStatus() == Message.STATUS_OFFERED;
1122            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1123            if (cancelable) {
1124                cancelTransmission.setVisible(true);
1125            }
1126            if (m.isFileOrImage() && !deleted && !cancelable) {
1127                String path = m.getRelativeFilePath();
1128                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1129                    deleteFile.setVisible(true);
1130                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1131                }
1132            }
1133            if (showError) {
1134                showErrorMessage.setVisible(true);
1135            }
1136            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1137            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1138                openWith.setVisible(true);
1139            }
1140        }
1141    }
1142
1143    @Override
1144    public boolean onContextItemSelected(MenuItem item) {
1145        switch (item.getItemId()) {
1146            case R.id.share_with:
1147                ShareUtil.share(activity, selectedMessage);
1148                return true;
1149            case R.id.correct_message:
1150                correctMessage(selectedMessage);
1151                return true;
1152            case R.id.copy_message:
1153                ShareUtil.copyToClipboard(activity, selectedMessage);
1154                return true;
1155            case R.id.copy_link:
1156                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1157                return true;
1158            case R.id.quote_message:
1159                quoteMessage(selectedMessage);
1160                return true;
1161            case R.id.send_again:
1162                resendMessage(selectedMessage);
1163                return true;
1164            case R.id.copy_url:
1165                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1166                return true;
1167            case R.id.download_file:
1168                startDownloadable(selectedMessage);
1169                return true;
1170            case R.id.cancel_transmission:
1171                cancelTransmission(selectedMessage);
1172                return true;
1173            case R.id.retry_decryption:
1174                retryDecryption(selectedMessage);
1175                return true;
1176            case R.id.delete_file:
1177                deleteFile(selectedMessage);
1178                return true;
1179            case R.id.show_error_message:
1180                showErrorMessage(selectedMessage);
1181                return true;
1182            case R.id.open_with:
1183                openWith(selectedMessage);
1184                return true;
1185            default:
1186                return super.onContextItemSelected(item);
1187        }
1188    }
1189
1190    @Override
1191    public boolean onOptionsItemSelected(final MenuItem item) {
1192        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1193            return false;
1194        } else if (conversation == null) {
1195            return super.onOptionsItemSelected(item);
1196        }
1197        switch (item.getItemId()) {
1198            case R.id.encryption_choice_axolotl:
1199            case R.id.encryption_choice_pgp:
1200            case R.id.encryption_choice_none:
1201                handleEncryptionSelection(item);
1202                break;
1203            case R.id.attach_choose_picture:
1204            case R.id.attach_take_picture:
1205            case R.id.attach_record_video:
1206            case R.id.attach_choose_file:
1207            case R.id.attach_record_voice:
1208            case R.id.attach_location:
1209                handleAttachmentSelection(item);
1210                break;
1211            case R.id.action_archive:
1212                activity.xmppConnectionService.archiveConversation(conversation);
1213                break;
1214            case R.id.action_contact_details:
1215                activity.switchToContactDetails(conversation.getContact());
1216                break;
1217            case R.id.action_muc_details:
1218                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1219                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1220                intent.putExtra("uuid", conversation.getUuid());
1221                startActivity(intent);
1222                break;
1223            case R.id.action_invite:
1224                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1225                break;
1226            case R.id.action_clear_history:
1227                clearHistoryDialog(conversation);
1228                break;
1229            case R.id.action_mute:
1230                muteConversationDialog(conversation);
1231                break;
1232            case R.id.action_unmute:
1233                unmuteConversation(conversation);
1234                break;
1235            case R.id.action_block:
1236            case R.id.action_unblock:
1237                final Activity activity = getActivity();
1238                if (activity instanceof XmppActivity) {
1239                    BlockContactDialog.show((XmppActivity) activity, conversation);
1240                }
1241                break;
1242            case R.id.action_audio_call:
1243                checkPermissionAndTriggerAudioCall();
1244                break;
1245            case R.id.action_video_call:
1246                checkPermissionAndTriggerVideoCall();
1247                break;
1248            default:
1249                break;
1250        }
1251        return super.onOptionsItemSelected(item);
1252    }
1253
1254    private void checkPermissionAndTriggerAudioCall() {
1255        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1256            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1257            return;
1258        }
1259        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1260            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1261        }
1262    }
1263
1264    private void checkPermissionAndTriggerVideoCall() {
1265        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1266            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1267            return;
1268        }
1269        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1270            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1271        }
1272    }
1273
1274
1275    private void triggerRtpSession(final String action) {
1276        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1277            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1278            return;
1279        }
1280        final Contact contact = conversation.getContact();
1281        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1282        intent.setAction(action);
1283        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, contact.getAccount().getJid().toEscapedString());
1284        intent.putExtra(RtpSessionActivity.EXTRA_WITH, contact.getJid().asBareJid().toEscapedString());
1285        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1286        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1287        startActivity(intent);
1288    }
1289
1290    private void handleAttachmentSelection(MenuItem item) {
1291        switch (item.getItemId()) {
1292            case R.id.attach_choose_picture:
1293                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1294                break;
1295            case R.id.attach_take_picture:
1296                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1297                break;
1298            case R.id.attach_record_video:
1299                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1300                break;
1301            case R.id.attach_choose_file:
1302                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1303                break;
1304            case R.id.attach_record_voice:
1305                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1306                break;
1307            case R.id.attach_location:
1308                attachFile(ATTACHMENT_CHOICE_LOCATION);
1309                break;
1310        }
1311    }
1312
1313    private void handleEncryptionSelection(MenuItem item) {
1314        if (conversation == null) {
1315            return;
1316        }
1317        final boolean updated;
1318        switch (item.getItemId()) {
1319            case R.id.encryption_choice_none:
1320                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1321                item.setChecked(true);
1322                break;
1323            case R.id.encryption_choice_pgp:
1324                if (activity.hasPgp()) {
1325                    if (conversation.getAccount().getPgpSignature() != null) {
1326                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1327                        item.setChecked(true);
1328                    } else {
1329                        updated = false;
1330                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1331                    }
1332                } else {
1333                    activity.showInstallPgpDialog();
1334                    updated = false;
1335                }
1336                break;
1337            case R.id.encryption_choice_axolotl:
1338                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1339                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1340                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1341                item.setChecked(true);
1342                break;
1343            default:
1344                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1345                break;
1346        }
1347        if (updated) {
1348            activity.xmppConnectionService.updateConversation(conversation);
1349        }
1350        updateChatMsgHint();
1351        getActivity().invalidateOptionsMenu();
1352        activity.refreshUi();
1353    }
1354
1355    public void attachFile(final int attachmentChoice) {
1356        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1357            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1358                return;
1359            }
1360        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1361            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1362                return;
1363            }
1364        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1365            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1366                return;
1367            }
1368        }
1369        try {
1370            activity.getPreferences().edit()
1371                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1372                    .apply();
1373        } catch (IllegalArgumentException e) {
1374            //just do not save
1375        }
1376        final int encryption = conversation.getNextEncryption();
1377        final int mode = conversation.getMode();
1378        if (encryption == Message.ENCRYPTION_PGP) {
1379            if (activity.hasPgp()) {
1380                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1381                    activity.xmppConnectionService.getPgpEngine().hasKey(
1382                            conversation.getContact(),
1383                            new UiCallback<Contact>() {
1384
1385                                @Override
1386                                public void userInputRequired(PendingIntent pi, Contact contact) {
1387                                    startPendingIntent(pi, attachmentChoice);
1388                                }
1389
1390                                @Override
1391                                public void success(Contact contact) {
1392                                    invokeAttachFileIntent(attachmentChoice);
1393                                }
1394
1395                                @Override
1396                                public void error(int error, Contact contact) {
1397                                    activity.replaceToast(getString(error));
1398                                }
1399                            });
1400                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1401                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1402                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1403                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1404                        warning.show();
1405                    }
1406                    invokeAttachFileIntent(attachmentChoice);
1407                } else {
1408                    showNoPGPKeyDialog(false, (dialog, which) -> {
1409                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1410                        activity.xmppConnectionService.updateConversation(conversation);
1411                        invokeAttachFileIntent(attachmentChoice);
1412                    });
1413                }
1414            } else {
1415                activity.showInstallPgpDialog();
1416            }
1417        } else {
1418            invokeAttachFileIntent(attachmentChoice);
1419        }
1420    }
1421
1422    @Override
1423    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1424        if (grantResults.length > 0) {
1425            if (allGranted(grantResults)) {
1426                switch (requestCode) {
1427                    case REQUEST_START_DOWNLOAD:
1428                        if (this.mPendingDownloadableMessage != null) {
1429                            startDownloadable(this.mPendingDownloadableMessage);
1430                        }
1431                        break;
1432                    case REQUEST_ADD_EDITOR_CONTENT:
1433                        if (this.mPendingEditorContent != null) {
1434                            attachEditorContentToConversation(this.mPendingEditorContent);
1435                        }
1436                        break;
1437                    case REQUEST_COMMIT_ATTACHMENTS:
1438                        commitAttachments();
1439                        break;
1440                    case REQUEST_START_AUDIO_CALL:
1441                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1442                        break;
1443                    case REQUEST_START_VIDEO_CALL:
1444                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1445                        break;
1446                    default:
1447                        attachFile(requestCode);
1448                        break;
1449                }
1450            } else {
1451                @StringRes int res;
1452                String firstDenied = getFirstDenied(grantResults, permissions);
1453                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1454                    res = R.string.no_microphone_permission;
1455                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1456                    res = R.string.no_camera_permission;
1457                } else {
1458                    res = R.string.no_storage_permission;
1459                }
1460                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1461            }
1462        }
1463        if (writeGranted(grantResults, permissions)) {
1464            if (activity != null && activity.xmppConnectionService != null) {
1465                activity.xmppConnectionService.restartFileObserver();
1466            }
1467            refresh();
1468        }
1469    }
1470
1471    public void startDownloadable(Message message) {
1472        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1473            this.mPendingDownloadableMessage = message;
1474            return;
1475        }
1476        Transferable transferable = message.getTransferable();
1477        if (transferable != null) {
1478            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1479                createNewConnection(message);
1480                return;
1481            }
1482            if (!transferable.start()) {
1483                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1484                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1485            }
1486        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1487            createNewConnection(message);
1488        } else {
1489            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1490        }
1491    }
1492
1493    private void createNewConnection(final Message message) {
1494        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1495            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1496            return;
1497        }
1498        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1499    }
1500
1501    @SuppressLint("InflateParams")
1502    protected void clearHistoryDialog(final Conversation conversation) {
1503        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1504        builder.setTitle(getString(R.string.clear_conversation_history));
1505        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1506        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1507        builder.setView(dialogView);
1508        builder.setNegativeButton(getString(R.string.cancel), null);
1509        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1510            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1511            if (endConversationCheckBox.isChecked()) {
1512                this.activity.xmppConnectionService.archiveConversation(conversation);
1513                this.activity.onConversationArchived(conversation);
1514            } else {
1515                activity.onConversationsListItemUpdated();
1516                refresh();
1517            }
1518        });
1519        builder.create().show();
1520    }
1521
1522    protected void muteConversationDialog(final Conversation conversation) {
1523        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1524        builder.setTitle(R.string.disable_notifications);
1525        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1526        final CharSequence[] labels = new CharSequence[durations.length];
1527        for (int i = 0; i < durations.length; ++i) {
1528            if (durations[i] == -1) {
1529                labels[i] = getString(R.string.until_further_notice);
1530            } else {
1531                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1532            }
1533        }
1534        builder.setItems(labels, (dialog, which) -> {
1535            final long till;
1536            if (durations[which] == -1) {
1537                till = Long.MAX_VALUE;
1538            } else {
1539                till = System.currentTimeMillis() + (durations[which] * 1000);
1540            }
1541            conversation.setMutedTill(till);
1542            activity.xmppConnectionService.updateConversation(conversation);
1543            activity.onConversationsListItemUpdated();
1544            refresh();
1545            getActivity().invalidateOptionsMenu();
1546        });
1547        builder.create().show();
1548    }
1549
1550    private boolean hasPermissions(int requestCode, String... permissions) {
1551        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1552            final List<String> missingPermissions = new ArrayList<>();
1553            for (String permission : permissions) {
1554                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1555                    continue;
1556                }
1557                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1558                    missingPermissions.add(permission);
1559                }
1560            }
1561            if (missingPermissions.size() == 0) {
1562                return true;
1563            } else {
1564                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1565                return false;
1566            }
1567        } else {
1568            return true;
1569        }
1570    }
1571
1572    public void unmuteConversation(final Conversation conversation) {
1573        conversation.setMutedTill(0);
1574        this.activity.xmppConnectionService.updateConversation(conversation);
1575        this.activity.onConversationsListItemUpdated();
1576        refresh();
1577        getActivity().invalidateOptionsMenu();
1578    }
1579
1580
1581    protected void invokeAttachFileIntent(final int attachmentChoice) {
1582        Intent intent = new Intent();
1583        boolean chooser = false;
1584        switch (attachmentChoice) {
1585            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1586                intent.setAction(Intent.ACTION_GET_CONTENT);
1587                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1588                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1589                }
1590                intent.setType("image/*");
1591                chooser = true;
1592                break;
1593            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1594                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1595                break;
1596            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1597                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1598                pendingTakePhotoUri.push(uri);
1599                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1600                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1601                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1602                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1603                break;
1604            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1605                chooser = true;
1606                intent.setType("*/*");
1607                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1608                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1609                }
1610                intent.addCategory(Intent.CATEGORY_OPENABLE);
1611                intent.setAction(Intent.ACTION_GET_CONTENT);
1612                break;
1613            case ATTACHMENT_CHOICE_RECORD_VOICE:
1614                intent = new Intent(getActivity(), RecordingActivity.class);
1615                break;
1616            case ATTACHMENT_CHOICE_LOCATION:
1617                intent = GeoHelper.getFetchIntent(activity);
1618                break;
1619        }
1620        final Context context = getActivity();
1621        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1622            if (chooser) {
1623                startActivityForResult(
1624                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1625                        attachmentChoice);
1626            } else {
1627                startActivityForResult(intent, attachmentChoice);
1628            }
1629        }
1630    }
1631
1632    @Override
1633    public void onResume() {
1634        super.onResume();
1635        binding.messagesView.post(this::fireReadEvent);
1636    }
1637
1638    private void fireReadEvent() {
1639        if (activity != null && this.conversation != null) {
1640            String uuid = getLastVisibleMessageUuid();
1641            if (uuid != null) {
1642                activity.onConversationRead(this.conversation, uuid);
1643            }
1644        }
1645    }
1646
1647    private String getLastVisibleMessageUuid() {
1648        if (binding == null) {
1649            return null;
1650        }
1651        synchronized (this.messageList) {
1652            int pos = binding.messagesView.getLastVisiblePosition();
1653            if (pos >= 0) {
1654                Message message = null;
1655                for (int i = pos; i >= 0; --i) {
1656                    try {
1657                        message = (Message) binding.messagesView.getItemAtPosition(i);
1658                    } catch (IndexOutOfBoundsException e) {
1659                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1660                        continue;
1661                    }
1662                    if (message.getType() != Message.TYPE_STATUS) {
1663                        break;
1664                    }
1665                }
1666                if (message != null) {
1667                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1668                        message = message.next();
1669                    }
1670                    return message.getUuid();
1671                }
1672            }
1673        }
1674        return null;
1675    }
1676
1677    private void openWith(final Message message) {
1678        if (message.isGeoUri()) {
1679            GeoHelper.view(getActivity(), message);
1680        } else {
1681            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1682            ViewUtil.view(activity, file);
1683        }
1684    }
1685
1686    private void showErrorMessage(final Message message) {
1687        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1688        builder.setTitle(R.string.error_message);
1689        final String errorMessage = message.getErrorMessage();
1690        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1691        final String displayError;
1692        if (errorMessageParts.length == 2) {
1693            displayError = errorMessageParts[1];
1694        } else {
1695            displayError = errorMessage;
1696        }
1697        builder.setMessage(displayError);
1698        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1699            activity.copyTextToClipboard(displayError, R.string.error_message);
1700            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1701        });
1702        builder.setPositiveButton(R.string.confirm, null);
1703        builder.create().show();
1704    }
1705
1706
1707    private void deleteFile(final Message message) {
1708        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1709        builder.setNegativeButton(R.string.cancel, null);
1710        builder.setTitle(R.string.delete_file_dialog);
1711        builder.setMessage(R.string.delete_file_dialog_msg);
1712        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1713            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1714                message.setDeleted(true);
1715                activity.xmppConnectionService.evictPreview(message.getUuid());
1716                activity.xmppConnectionService.updateMessage(message, false);
1717                activity.onConversationsListItemUpdated();
1718                refresh();
1719            }
1720        });
1721        builder.create().show();
1722
1723    }
1724
1725    private void resendMessage(final Message message) {
1726        if (message.isFileOrImage()) {
1727            if (!(message.getConversation() instanceof Conversation)) {
1728                return;
1729            }
1730            final Conversation conversation = (Conversation) message.getConversation();
1731            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1732            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1733                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1734                if (!message.hasFileOnRemoteHost()
1735                        && xmppConnection != null
1736                        && conversation.getMode() == Conversational.MODE_SINGLE
1737                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1738                    activity.selectPresence(conversation, () -> {
1739                        message.setCounterpart(conversation.getNextCounterpart());
1740                        activity.xmppConnectionService.resendFailedMessages(message);
1741                        new Handler().post(() -> {
1742                            int size = messageList.size();
1743                            this.binding.messagesView.setSelection(size - 1);
1744                        });
1745                    });
1746                    return;
1747                }
1748            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1749                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1750                return;
1751            } else {
1752                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1753                message.setDeleted(true);
1754                activity.xmppConnectionService.updateMessage(message, false);
1755                activity.onConversationsListItemUpdated();
1756                refresh();
1757                return;
1758            }
1759        }
1760        activity.xmppConnectionService.resendFailedMessages(message);
1761        new Handler().post(() -> {
1762            int size = messageList.size();
1763            this.binding.messagesView.setSelection(size - 1);
1764        });
1765    }
1766
1767    private void cancelTransmission(Message message) {
1768        Transferable transferable = message.getTransferable();
1769        if (transferable != null) {
1770            transferable.cancel();
1771        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1772            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1773        }
1774    }
1775
1776    private void retryDecryption(Message message) {
1777        message.setEncryption(Message.ENCRYPTION_PGP);
1778        activity.onConversationsListItemUpdated();
1779        refresh();
1780        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1781    }
1782
1783    public void privateMessageWith(final Jid counterpart) {
1784        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1785            activity.xmppConnectionService.sendChatState(conversation);
1786        }
1787        this.binding.textinput.setText("");
1788        this.conversation.setNextCounterpart(counterpart);
1789        updateChatMsgHint();
1790        updateSendButton();
1791        updateEditablity();
1792    }
1793
1794    private void correctMessage(Message message) {
1795        while (message.mergeable(message.next())) {
1796            message = message.next();
1797        }
1798        this.conversation.setCorrectingMessage(message);
1799        final Editable editable = binding.textinput.getText();
1800        this.conversation.setDraftMessage(editable.toString());
1801        this.binding.textinput.setText("");
1802        this.binding.textinput.append(message.getBody());
1803
1804    }
1805
1806    private void highlightInConference(String nick) {
1807        final Editable editable = this.binding.textinput.getText();
1808        String oldString = editable.toString().trim();
1809        final int pos = this.binding.textinput.getSelectionStart();
1810        if (oldString.isEmpty() || pos == 0) {
1811            editable.insert(0, nick + ": ");
1812        } else {
1813            final char before = editable.charAt(pos - 1);
1814            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1815            if (before == '\n') {
1816                editable.insert(pos, nick + ": ");
1817            } else {
1818                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1819                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1820                        editable.insert(pos - 2, ", " + nick);
1821                        return;
1822                    }
1823                }
1824                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1825                if (Character.isWhitespace(after)) {
1826                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1827                }
1828            }
1829        }
1830    }
1831
1832    @Override
1833    public void startActivityForResult(Intent intent, int requestCode) {
1834        final Activity activity = getActivity();
1835        if (activity instanceof ConversationsActivity) {
1836            ((ConversationsActivity) activity).clearPendingViewIntent();
1837        }
1838        super.startActivityForResult(intent, requestCode);
1839    }
1840
1841    @Override
1842    public void onSaveInstanceState(Bundle outState) {
1843        super.onSaveInstanceState(outState);
1844        if (conversation != null) {
1845            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1846            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1847            final Uri uri = pendingTakePhotoUri.peek();
1848            if (uri != null) {
1849                outState.putString(STATE_PHOTO_URI, uri.toString());
1850            }
1851            final ScrollState scrollState = getScrollPosition();
1852            if (scrollState != null) {
1853                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1854            }
1855            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1856            if (attachments.size() > 0) {
1857                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1858            }
1859        }
1860    }
1861
1862    @Override
1863    public void onActivityCreated(Bundle savedInstanceState) {
1864        super.onActivityCreated(savedInstanceState);
1865        if (savedInstanceState == null) {
1866            return;
1867        }
1868        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1869        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1870        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1871        if (uuid != null) {
1872            QuickLoader.set(uuid);
1873            this.pendingConversationsUuid.push(uuid);
1874            if (attachments != null && attachments.size() > 0) {
1875                this.pendingMediaPreviews.push(attachments);
1876            }
1877            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1878            if (takePhotoUri != null) {
1879                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1880            }
1881            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1882        }
1883    }
1884
1885    @Override
1886    public void onStart() {
1887        super.onStart();
1888        if (this.reInitRequiredOnStart && this.conversation != null) {
1889            final Bundle extras = pendingExtras.pop();
1890            reInit(this.conversation, extras != null);
1891            if (extras != null) {
1892                processExtras(extras);
1893            }
1894        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1895            final String uuid = pendingConversationsUuid.pop();
1896            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1897            if (uuid != null) {
1898                findAndReInitByUuidOrArchive(uuid);
1899            }
1900        }
1901    }
1902
1903    @Override
1904    public void onStop() {
1905        super.onStop();
1906        final Activity activity = getActivity();
1907        messageListAdapter.unregisterListenerInAudioPlayer();
1908        if (activity == null || !activity.isChangingConfigurations()) {
1909            hideSoftKeyboard(activity);
1910            messageListAdapter.stopAudioPlayer();
1911        }
1912        if (this.conversation != null) {
1913            final String msg = this.binding.textinput.getText().toString();
1914            storeNextMessage(msg);
1915            updateChatState(this.conversation, msg);
1916            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1917        }
1918        this.reInitRequiredOnStart = true;
1919    }
1920
1921    private void updateChatState(final Conversation conversation, final String msg) {
1922        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
1923        Account.State status = conversation.getAccount().getStatus();
1924        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1925            activity.xmppConnectionService.sendChatState(conversation);
1926        }
1927    }
1928
1929    private void saveMessageDraftStopAudioPlayer() {
1930        final Conversation previousConversation = this.conversation;
1931        if (this.activity == null || this.binding == null || previousConversation == null) {
1932            return;
1933        }
1934        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1935        final String msg = this.binding.textinput.getText().toString();
1936        storeNextMessage(msg);
1937        updateChatState(this.conversation, msg);
1938        messageListAdapter.stopAudioPlayer();
1939        mediaPreviewAdapter.clearPreviews();
1940        toggleInputMethod();
1941    }
1942
1943    public void reInit(Conversation conversation, Bundle extras) {
1944        QuickLoader.set(conversation.getUuid());
1945        this.saveMessageDraftStopAudioPlayer();
1946        this.clearPending();
1947        if (this.reInit(conversation, extras != null)) {
1948            if (extras != null) {
1949                processExtras(extras);
1950            }
1951            this.reInitRequiredOnStart = false;
1952        } else {
1953            this.reInitRequiredOnStart = true;
1954            pendingExtras.push(extras);
1955        }
1956        resetUnreadMessagesCount();
1957    }
1958
1959    private void reInit(Conversation conversation) {
1960        reInit(conversation, false);
1961    }
1962
1963    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1964        if (conversation == null) {
1965            return false;
1966        }
1967        this.conversation = conversation;
1968        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1969        if (this.activity == null || this.binding == null) {
1970            return false;
1971        }
1972
1973        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1974            activity.onConversationArchived(this.conversation);
1975            return false;
1976        }
1977
1978        stopScrolling();
1979        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1980
1981        if (this.conversation.isRead() && hasExtras) {
1982            Log.d(Config.LOGTAG, "trimming conversation");
1983            this.conversation.trim();
1984        }
1985
1986        setupIme();
1987
1988        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1989
1990        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1991        this.binding.textinput.setKeyboardListener(null);
1992        this.binding.textinput.setText("");
1993        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1994        if (participating) {
1995            this.binding.textinput.append(this.conversation.getNextMessage());
1996        }
1997        this.binding.textinput.setKeyboardListener(this);
1998        messageListAdapter.updatePreferences();
1999        refresh(false);
2000        this.conversation.messagesLoaded.set(true);
2001        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
2002
2003        if (hasExtras || scrolledToBottomAndNoPending) {
2004            resetUnreadMessagesCount();
2005            synchronized (this.messageList) {
2006                Log.d(Config.LOGTAG, "jump to first unread message");
2007                final Message first = conversation.getFirstUnreadMessage();
2008                final int bottom = Math.max(0, this.messageList.size() - 1);
2009                final int pos;
2010                final boolean jumpToBottom;
2011                if (first == null) {
2012                    pos = bottom;
2013                    jumpToBottom = true;
2014                } else {
2015                    int i = getIndexOf(first.getUuid(), this.messageList);
2016                    pos = i < 0 ? bottom : i;
2017                    jumpToBottom = false;
2018                }
2019                setSelection(pos, jumpToBottom);
2020            }
2021        }
2022
2023
2024        this.binding.messagesView.post(this::fireReadEvent);
2025        //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
2026        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2027        return true;
2028    }
2029
2030    private void resetUnreadMessagesCount() {
2031        lastMessageUuid = null;
2032        hideUnreadMessagesCount();
2033    }
2034
2035    private void hideUnreadMessagesCount() {
2036        if (this.binding == null) {
2037            return;
2038        }
2039        this.binding.scrollToBottomButton.setEnabled(false);
2040        this.binding.scrollToBottomButton.hide();
2041        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2042    }
2043
2044    private void setSelection(int pos, boolean jumpToBottom) {
2045        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2046        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2047        this.binding.messagesView.post(this::fireReadEvent);
2048    }
2049
2050
2051    private boolean scrolledToBottom() {
2052        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2053    }
2054
2055    private void processExtras(Bundle extras) {
2056        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2057        final String text = extras.getString(Intent.EXTRA_TEXT);
2058        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2059        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2060        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2061        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2062        final List<Uri> uris = extractUris(extras);
2063        if (uris != null && uris.size() > 0) {
2064            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2065                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2066            } else {
2067                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2068                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2069            }
2070            toggleInputMethod();
2071            return;
2072        }
2073        if (nick != null) {
2074            if (pm) {
2075                Jid jid = conversation.getJid();
2076                try {
2077                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2078                    privateMessageWith(next);
2079                } catch (final IllegalArgumentException ignored) {
2080                    //do nothing
2081                }
2082            } else {
2083                final MucOptions mucOptions = conversation.getMucOptions();
2084                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2085                    highlightInConference(nick);
2086                }
2087            }
2088        } else {
2089            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2090                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2091                toggleInputMethod();
2092                return;
2093            } else if (text != null && asQuote) {
2094                quoteText(text);
2095            } else {
2096                appendText(text, doNotAppend);
2097            }
2098        }
2099        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2100        if (message != null) {
2101            startDownloadable(message);
2102        }
2103    }
2104
2105    private List<Uri> extractUris(Bundle extras) {
2106        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2107        if (uris != null) {
2108            return uris;
2109        }
2110        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2111        if (uri != null) {
2112            return Collections.singletonList(uri);
2113        } else {
2114            return null;
2115        }
2116    }
2117
2118    private List<Uri> cleanUris(List<Uri> uris) {
2119        Iterator<Uri> iterator = uris.iterator();
2120        while (iterator.hasNext()) {
2121            final Uri uri = iterator.next();
2122            if (FileBackend.weOwnFile(getActivity(), uri)) {
2123                iterator.remove();
2124                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2125            }
2126        }
2127        return uris;
2128    }
2129
2130    private boolean showBlockSubmenu(View view) {
2131        final Jid jid = conversation.getJid();
2132        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2133        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2134        popupMenu.inflate(R.menu.block);
2135        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2136        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2137        popupMenu.setOnMenuItemClickListener(menuItem -> {
2138            Blockable blockable;
2139            switch (menuItem.getItemId()) {
2140                case R.id.reject:
2141                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2142                    updateSnackBar(conversation);
2143                    return true;
2144                case R.id.block_domain:
2145                    blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2146                    break;
2147                default:
2148                    blockable = conversation;
2149            }
2150            BlockContactDialog.show(activity, blockable);
2151            return true;
2152        });
2153        popupMenu.show();
2154        return true;
2155    }
2156
2157    private void updateSnackBar(final Conversation conversation) {
2158        final Account account = conversation.getAccount();
2159        final XmppConnection connection = account.getXmppConnection();
2160        final int mode = conversation.getMode();
2161        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2162        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2163            return;
2164        }
2165        if (account.getStatus() == Account.State.DISABLED) {
2166            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2167        } else if (conversation.isBlocked()) {
2168            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2169        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2170            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2171        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2172            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2173        } else if (mode == Conversation.MODE_MULTI
2174                && !conversation.getMucOptions().online()
2175                && account.getStatus() == Account.State.ONLINE) {
2176            switch (conversation.getMucOptions().getError()) {
2177                case NICK_IN_USE:
2178                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2179                    break;
2180                case NO_RESPONSE:
2181                    showSnackbar(R.string.joining_conference, 0, null);
2182                    break;
2183                case SERVER_NOT_FOUND:
2184                    if (conversation.receivedMessagesCount() > 0) {
2185                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2186                    } else {
2187                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2188                    }
2189                    break;
2190                case REMOTE_SERVER_TIMEOUT:
2191                    if (conversation.receivedMessagesCount() > 0) {
2192                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2193                    } else {
2194                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2195                    }
2196                    break;
2197                case PASSWORD_REQUIRED:
2198                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2199                    break;
2200                case BANNED:
2201                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2202                    break;
2203                case MEMBERS_ONLY:
2204                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2205                    break;
2206                case RESOURCE_CONSTRAINT:
2207                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2208                    break;
2209                case KICKED:
2210                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2211                    break;
2212                case UNKNOWN:
2213                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2214                    break;
2215                case INVALID_NICK:
2216                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2217                case SHUTDOWN:
2218                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2219                    break;
2220                case DESTROYED:
2221                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2222                    break;
2223                case NON_ANONYMOUS:
2224                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2225                    break;
2226                default:
2227                    hideSnackbar();
2228                    break;
2229            }
2230        } else if (account.hasPendingPgpIntent(conversation)) {
2231            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2232        } else if (connection != null
2233                && connection.getFeatures().blocking()
2234                && conversation.countMessages() != 0
2235                && !conversation.isBlocked()
2236                && conversation.isWithStranger()) {
2237            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2238        } else {
2239            hideSnackbar();
2240        }
2241    }
2242
2243    @Override
2244    public void refresh() {
2245        if (this.binding == null) {
2246            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2247            return;
2248        }
2249        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2250            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2251                activity.onConversationArchived(this.conversation);
2252                return;
2253            }
2254        }
2255        this.refresh(true);
2256    }
2257
2258    private void refresh(boolean notifyConversationRead) {
2259        synchronized (this.messageList) {
2260            if (this.conversation != null) {
2261                conversation.populateWithMessages(this.messageList);
2262                updateSnackBar(conversation);
2263                updateStatusMessages();
2264                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2265                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2266                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2267                }
2268                this.messageListAdapter.notifyDataSetChanged();
2269                updateChatMsgHint();
2270                if (notifyConversationRead && activity != null) {
2271                    binding.messagesView.post(this::fireReadEvent);
2272                }
2273                updateSendButton();
2274                updateEditablity();
2275                activity.invalidateOptionsMenu();
2276            }
2277        }
2278    }
2279
2280    protected void messageSent() {
2281        mSendingPgpMessage.set(false);
2282        this.binding.textinput.setText("");
2283        if (conversation.setCorrectingMessage(null)) {
2284            this.binding.textinput.append(conversation.getDraftMessage());
2285            conversation.setDraftMessage(null);
2286        }
2287        storeNextMessage();
2288        updateChatMsgHint();
2289        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2290        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2291        if (prefScrollToBottom || scrolledToBottom()) {
2292            new Handler().post(() -> {
2293                int size = messageList.size();
2294                this.binding.messagesView.setSelection(size - 1);
2295            });
2296        }
2297    }
2298
2299    private boolean storeNextMessage() {
2300        return storeNextMessage(this.binding.textinput.getText().toString());
2301    }
2302
2303    private boolean storeNextMessage(String msg) {
2304        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2305        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2306            this.activity.xmppConnectionService.updateConversation(this.conversation);
2307            return true;
2308        }
2309        return false;
2310    }
2311
2312    public void doneSendingPgpMessage() {
2313        mSendingPgpMessage.set(false);
2314    }
2315
2316    public long getMaxHttpUploadSize(Conversation conversation) {
2317        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2318        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2319    }
2320
2321    private void updateEditablity() {
2322        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2323        this.binding.textinput.setFocusable(canWrite);
2324        this.binding.textinput.setFocusableInTouchMode(canWrite);
2325        this.binding.textSendButton.setEnabled(canWrite);
2326        this.binding.textinput.setCursorVisible(canWrite);
2327        this.binding.textinput.setEnabled(canWrite);
2328    }
2329
2330    public void updateSendButton() {
2331        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2332        final Conversation c = this.conversation;
2333        final Presence.Status status;
2334        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2335        final SendButtonAction action;
2336        if (hasAttachments) {
2337            action = SendButtonAction.TEXT;
2338        } else {
2339            action = SendButtonTool.getAction(getActivity(), c, text);
2340        }
2341        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2342            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2343                status = Presence.Status.OFFLINE;
2344            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2345                status = c.getContact().getShownStatus();
2346            } else {
2347                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2348            }
2349        } else {
2350            status = Presence.Status.OFFLINE;
2351        }
2352        this.binding.textSendButton.setTag(action);
2353        final Activity activity = getActivity();
2354        if (activity != null) {
2355            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2356        }
2357    }
2358
2359    protected void updateStatusMessages() {
2360        DateSeparator.addAll(this.messageList);
2361        if (showLoadMoreMessages(conversation)) {
2362            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2363        }
2364        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2365            ChatState state = conversation.getIncomingChatState();
2366            if (state == ChatState.COMPOSING) {
2367                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2368            } else if (state == ChatState.PAUSED) {
2369                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2370            } else {
2371                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2372                    final Message message = this.messageList.get(i);
2373                    if (message.getType() != Message.TYPE_STATUS) {
2374                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2375                            return;
2376                        } else {
2377                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2378                                this.messageList.add(i + 1,
2379                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2380                                return;
2381                            }
2382                        }
2383                    }
2384                }
2385            }
2386        } else {
2387            final MucOptions mucOptions = conversation.getMucOptions();
2388            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2389            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2390            ChatState state = ChatState.COMPOSING;
2391            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2392            if (users.size() == 0) {
2393                state = ChatState.PAUSED;
2394                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2395            }
2396            if (mucOptions.isPrivateAndNonAnonymous()) {
2397                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2398                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2399                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2400                    for (ReadByMarker marker : markersForMessage) {
2401                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2402                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2403                            MucOptions.User user = mucOptions.findUser(marker);
2404                            if (user != null && !users.contains(user)) {
2405                                shownMarkers.add(user);
2406                            }
2407                        }
2408                    }
2409                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2410                    final Message statusMessage;
2411                    final int size = shownMarkers.size();
2412                    if (size > 1) {
2413                        final String body;
2414                        if (size <= 4) {
2415                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2416                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2417                            body = getString(R.string.everyone_has_read_up_to_this_point);
2418                        } else {
2419                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2420                        }
2421                        statusMessage = Message.createStatusMessage(conversation, body);
2422                        statusMessage.setCounterparts(shownMarkers);
2423                    } else if (size == 1) {
2424                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2425                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2426                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2427                    } else {
2428                        statusMessage = null;
2429                    }
2430                    if (statusMessage != null) {
2431                        this.messageList.add(i + 1, statusMessage);
2432                    }
2433                    addedMarkers.add(markerForSender);
2434                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2435                        break;
2436                    }
2437                }
2438            }
2439            if (users.size() > 0) {
2440                Message statusMessage;
2441                if (users.size() == 1) {
2442                    MucOptions.User user = users.get(0);
2443                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2444                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2445                    statusMessage.setTrueCounterpart(user.getRealJid());
2446                    statusMessage.setCounterpart(user.getFullJid());
2447                } else {
2448                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2449                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2450                    statusMessage.setCounterparts(users);
2451                }
2452                this.messageList.add(statusMessage);
2453            }
2454
2455        }
2456    }
2457
2458    private void stopScrolling() {
2459        long now = SystemClock.uptimeMillis();
2460        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2461        binding.messagesView.dispatchTouchEvent(cancel);
2462    }
2463
2464    private boolean showLoadMoreMessages(final Conversation c) {
2465        if (activity == null || activity.xmppConnectionService == null) {
2466            return false;
2467        }
2468        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2469        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2470        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2471    }
2472
2473    private boolean hasMamSupport(final Conversation c) {
2474        if (c.getMode() == Conversation.MODE_SINGLE) {
2475            final XmppConnection connection = c.getAccount().getXmppConnection();
2476            return connection != null && connection.getFeatures().mam();
2477        } else {
2478            return c.getMucOptions().mamSupport();
2479        }
2480    }
2481
2482    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2483        showSnackbar(message, action, clickListener, null);
2484    }
2485
2486    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2487        this.binding.snackbar.setVisibility(View.VISIBLE);
2488        this.binding.snackbar.setOnClickListener(null);
2489        this.binding.snackbarMessage.setText(message);
2490        this.binding.snackbarMessage.setOnClickListener(null);
2491        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2492        if (action != 0) {
2493            this.binding.snackbarAction.setText(action);
2494        }
2495        this.binding.snackbarAction.setOnClickListener(clickListener);
2496        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2497    }
2498
2499    protected void hideSnackbar() {
2500        this.binding.snackbar.setVisibility(View.GONE);
2501    }
2502
2503    protected void sendMessage(Message message) {
2504        activity.xmppConnectionService.sendMessage(message);
2505        messageSent();
2506    }
2507
2508    protected void sendPgpMessage(final Message message) {
2509        final XmppConnectionService xmppService = activity.xmppConnectionService;
2510        final Contact contact = message.getConversation().getContact();
2511        if (!activity.hasPgp()) {
2512            activity.showInstallPgpDialog();
2513            return;
2514        }
2515        if (conversation.getAccount().getPgpSignature() == null) {
2516            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2517            return;
2518        }
2519        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2520            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2521        }
2522        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2523            if (contact.getPgpKeyId() != 0) {
2524                xmppService.getPgpEngine().hasKey(contact,
2525                        new UiCallback<Contact>() {
2526
2527                            @Override
2528                            public void userInputRequired(PendingIntent pi, Contact contact) {
2529                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2530                            }
2531
2532                            @Override
2533                            public void success(Contact contact) {
2534                                encryptTextMessage(message);
2535                            }
2536
2537                            @Override
2538                            public void error(int error, Contact contact) {
2539                                activity.runOnUiThread(() -> Toast.makeText(activity,
2540                                        R.string.unable_to_connect_to_keychain,
2541                                        Toast.LENGTH_SHORT
2542                                ).show());
2543                                mSendingPgpMessage.set(false);
2544                            }
2545                        });
2546
2547            } else {
2548                showNoPGPKeyDialog(false, (dialog, which) -> {
2549                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2550                    xmppService.updateConversation(conversation);
2551                    message.setEncryption(Message.ENCRYPTION_NONE);
2552                    xmppService.sendMessage(message);
2553                    messageSent();
2554                });
2555            }
2556        } else {
2557            if (conversation.getMucOptions().pgpKeysInUse()) {
2558                if (!conversation.getMucOptions().everybodyHasKeys()) {
2559                    Toast warning = Toast
2560                            .makeText(getActivity(),
2561                                    R.string.missing_public_keys,
2562                                    Toast.LENGTH_LONG);
2563                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2564                    warning.show();
2565                }
2566                encryptTextMessage(message);
2567            } else {
2568                showNoPGPKeyDialog(true, (dialog, which) -> {
2569                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2570                    message.setEncryption(Message.ENCRYPTION_NONE);
2571                    xmppService.updateConversation(conversation);
2572                    xmppService.sendMessage(message);
2573                    messageSent();
2574                });
2575            }
2576        }
2577    }
2578
2579    public void encryptTextMessage(Message message) {
2580        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2581                new UiCallback<Message>() {
2582
2583                    @Override
2584                    public void userInputRequired(PendingIntent pi, Message message) {
2585                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2586                    }
2587
2588                    @Override
2589                    public void success(Message message) {
2590                        //TODO the following two call can be made before the callback
2591                        getActivity().runOnUiThread(() -> messageSent());
2592                    }
2593
2594                    @Override
2595                    public void error(final int error, Message message) {
2596                        getActivity().runOnUiThread(() -> {
2597                            doneSendingPgpMessage();
2598                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2599                        });
2600
2601                    }
2602                });
2603    }
2604
2605    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2606        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2607        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2608        if (plural) {
2609            builder.setTitle(getString(R.string.no_pgp_keys));
2610            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2611        } else {
2612            builder.setTitle(getString(R.string.no_pgp_key));
2613            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2614        }
2615        builder.setNegativeButton(getString(R.string.cancel), null);
2616        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2617        builder.create().show();
2618    }
2619
2620    public void appendText(String text, final boolean doNotAppend) {
2621        if (text == null) {
2622            return;
2623        }
2624        final Editable editable = this.binding.textinput.getText();
2625        String previous = editable == null ? "" : editable.toString();
2626        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2627            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2628            return;
2629        }
2630        if (UIHelper.isLastLineQuote(previous)) {
2631            text = '\n' + text;
2632        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2633            text = " " + text;
2634        }
2635        this.binding.textinput.append(text);
2636    }
2637
2638    @Override
2639    public boolean onEnterPressed() {
2640        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2641        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2642        if (enterIsSend) {
2643            sendMessage();
2644            return true;
2645        } else {
2646            return false;
2647        }
2648    }
2649
2650    @Override
2651    public void onTypingStarted() {
2652        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2653        if (service == null) {
2654            return;
2655        }
2656        Account.State status = conversation.getAccount().getStatus();
2657        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2658            service.sendChatState(conversation);
2659        }
2660        runOnUiThread(this::updateSendButton);
2661    }
2662
2663    @Override
2664    public void onTypingStopped() {
2665        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2666        if (service == null) {
2667            return;
2668        }
2669        Account.State status = conversation.getAccount().getStatus();
2670        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2671            service.sendChatState(conversation);
2672        }
2673    }
2674
2675    @Override
2676    public void onTextDeleted() {
2677        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2678        if (service == null) {
2679            return;
2680        }
2681        Account.State status = conversation.getAccount().getStatus();
2682        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2683            service.sendChatState(conversation);
2684        }
2685        if (storeNextMessage()) {
2686            runOnUiThread(() -> {
2687                if (activity == null) {
2688                    return;
2689                }
2690                activity.onConversationsListItemUpdated();
2691            });
2692        }
2693        runOnUiThread(this::updateSendButton);
2694    }
2695
2696    @Override
2697    public void onTextChanged() {
2698        if (conversation != null && conversation.getCorrectingMessage() != null) {
2699            runOnUiThread(this::updateSendButton);
2700        }
2701    }
2702
2703    @Override
2704    public boolean onTabPressed(boolean repeated) {
2705        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2706            return false;
2707        }
2708        if (repeated) {
2709            completionIndex++;
2710        } else {
2711            lastCompletionLength = 0;
2712            completionIndex = 0;
2713            final String content = this.binding.textinput.getText().toString();
2714            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2715            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2716            firstWord = start == 0;
2717            incomplete = content.substring(start, lastCompletionCursor);
2718        }
2719        List<String> completions = new ArrayList<>();
2720        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2721            String name = user.getName();
2722            if (name != null && name.startsWith(incomplete)) {
2723                completions.add(name + (firstWord ? ": " : " "));
2724            }
2725        }
2726        Collections.sort(completions);
2727        if (completions.size() > completionIndex) {
2728            String completion = completions.get(completionIndex).substring(incomplete.length());
2729            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2730            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2731            lastCompletionLength = completion.length();
2732        } else {
2733            completionIndex = -1;
2734            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2735            lastCompletionLength = 0;
2736        }
2737        return true;
2738    }
2739
2740    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2741        try {
2742            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2743        } catch (final SendIntentException ignored) {
2744        }
2745    }
2746
2747    @Override
2748    public void onBackendConnected() {
2749        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2750        String uuid = pendingConversationsUuid.pop();
2751        if (uuid != null) {
2752            if (!findAndReInitByUuidOrArchive(uuid)) {
2753                return;
2754            }
2755        } else {
2756            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2757                clearPending();
2758                activity.onConversationArchived(conversation);
2759                return;
2760            }
2761        }
2762        ActivityResult activityResult = postponedActivityResult.pop();
2763        if (activityResult != null) {
2764            handleActivityResult(activityResult);
2765        }
2766        clearPending();
2767    }
2768
2769    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2770        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2771        if (conversation == null) {
2772            clearPending();
2773            activity.onConversationArchived(null);
2774            return false;
2775        }
2776        reInit(conversation);
2777        ScrollState scrollState = pendingScrollState.pop();
2778        String lastMessageUuid = pendingLastMessageUuid.pop();
2779        List<Attachment> attachments = pendingMediaPreviews.pop();
2780        if (scrollState != null) {
2781            setScrollPosition(scrollState, lastMessageUuid);
2782        }
2783        if (attachments != null && attachments.size() > 0) {
2784            Log.d(Config.LOGTAG, "had attachments on restore");
2785            mediaPreviewAdapter.addMediaPreviews(attachments);
2786            toggleInputMethod();
2787        }
2788        return true;
2789    }
2790
2791    private void clearPending() {
2792        if (postponedActivityResult.clear()) {
2793            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2794        }
2795        if (pendingScrollState.clear()) {
2796            Log.e(Config.LOGTAG, "cleared scroll state");
2797        }
2798        if (pendingTakePhotoUri.clear()) {
2799            Log.e(Config.LOGTAG, "cleared pending photo uri");
2800        }
2801        if (pendingConversationsUuid.clear()) {
2802            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2803        }
2804        if (pendingMediaPreviews.clear()) {
2805            Log.e(Config.LOGTAG, "cleared pending media previews");
2806        }
2807    }
2808
2809    public Conversation getConversation() {
2810        return conversation;
2811    }
2812
2813    @Override
2814    public void onContactPictureLongClicked(View v, final Message message) {
2815        final String fingerprint;
2816        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2817            fingerprint = "pgp";
2818        } else {
2819            fingerprint = message.getFingerprint();
2820        }
2821        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2822        final Contact contact = message.getContact();
2823        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2824            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2825                final Jid cp = message.getCounterpart();
2826                if (cp == null || cp.isBareJid()) {
2827                    return;
2828                }
2829                final Jid tcp = message.getTrueCounterpart();
2830                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2831                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2832                popupMenu.inflate(R.menu.muc_details_context);
2833                final Menu menu = popupMenu.getMenu();
2834                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2835                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2836            } else {
2837                popupMenu.inflate(R.menu.one_on_one_context);
2838                popupMenu.setOnMenuItemClickListener(item -> {
2839                    switch (item.getItemId()) {
2840                        case R.id.action_contact_details:
2841                            activity.switchToContactDetails(message.getContact(), fingerprint);
2842                            break;
2843                        case R.id.action_show_qr_code:
2844                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2845                            break;
2846                    }
2847                    return true;
2848                });
2849            }
2850        } else {
2851            popupMenu.inflate(R.menu.account_context);
2852            final Menu menu = popupMenu.getMenu();
2853            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2854            popupMenu.setOnMenuItemClickListener(item -> {
2855                switch (item.getItemId()) {
2856                    case R.id.action_show_qr_code:
2857                        activity.showQrCode(conversation.getAccount().getShareableUri());
2858                        break;
2859                    case R.id.action_account_details:
2860                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2861                        break;
2862                    case R.id.action_manage_accounts:
2863                        AccountUtils.launchManageAccounts(activity);
2864                        break;
2865                }
2866                return true;
2867            });
2868        }
2869        popupMenu.show();
2870    }
2871
2872    @Override
2873    public void onContactPictureClicked(Message message) {
2874        String fingerprint;
2875        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2876            fingerprint = "pgp";
2877        } else {
2878            fingerprint = message.getFingerprint();
2879        }
2880        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2881        if (received) {
2882            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2883                Jid tcp = message.getTrueCounterpart();
2884                Jid user = message.getCounterpart();
2885                if (user != null && !user.isBareJid()) {
2886                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2887                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2888                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2889                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2890                        }
2891                        highlightInConference(user.getResource());
2892                    } else {
2893                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2894                    }
2895                }
2896                return;
2897            } else {
2898                if (!message.getContact().isSelf()) {
2899                    activity.switchToContactDetails(message.getContact(), fingerprint);
2900                    return;
2901                }
2902            }
2903        }
2904        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2905    }
2906}