ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.PendingIntent;
   7import android.content.Context;
   8import android.content.DialogInterface;
   9import android.content.Intent;
  10import android.content.IntentSender.SendIntentException;
  11import android.content.SharedPreferences;
  12import android.content.pm.PackageManager;
  13import android.net.Uri;
  14import android.os.Build;
  15import android.os.Bundle;
  16import android.os.Handler;
  17import android.os.SystemClock;
  18import android.preference.PreferenceManager;
  19import android.provider.MediaStore;
  20import android.text.Editable;
  21import android.text.TextUtils;
  22import android.util.Log;
  23import android.view.ContextMenu;
  24import android.view.ContextMenu.ContextMenuInfo;
  25import android.view.Gravity;
  26import android.view.LayoutInflater;
  27import android.view.Menu;
  28import android.view.MenuInflater;
  29import android.view.MenuItem;
  30import android.view.MotionEvent;
  31import android.view.View;
  32import android.view.View.OnClickListener;
  33import android.view.ViewGroup;
  34import android.view.inputmethod.EditorInfo;
  35import android.view.inputmethod.InputMethodManager;
  36import android.widget.AbsListView;
  37import android.widget.AbsListView.OnScrollListener;
  38import android.widget.AdapterView;
  39import android.widget.AdapterView.AdapterContextMenuInfo;
  40import android.widget.CheckBox;
  41import android.widget.ListView;
  42import android.widget.PopupMenu;
  43import android.widget.TextView.OnEditorActionListener;
  44import android.widget.Toast;
  45
  46import androidx.annotation.IdRes;
  47import androidx.annotation.NonNull;
  48import androidx.annotation.StringRes;
  49import androidx.appcompat.app.AlertDialog;
  50import androidx.core.view.inputmethod.InputConnectionCompat;
  51import androidx.core.view.inputmethod.InputContentInfoCompat;
  52import androidx.databinding.DataBindingUtil;
  53import androidx.fragment.app.Fragment;
  54import androidx.fragment.app.FragmentManager;
  55
  56import com.google.common.base.Optional;
  57
  58import java.util.ArrayList;
  59import java.util.Arrays;
  60import java.util.Collection;
  61import java.util.Collections;
  62import java.util.HashSet;
  63import java.util.Iterator;
  64import java.util.List;
  65import java.util.Set;
  66import java.util.UUID;
  67import java.util.concurrent.atomic.AtomicBoolean;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  72import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  73import eu.siacs.conversations.databinding.FragmentConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Blockable;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Conversational;
  79import eu.siacs.conversations.entities.DownloadableFile;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.MucOptions;
  82import eu.siacs.conversations.entities.MucOptions.User;
  83import eu.siacs.conversations.entities.Presence;
  84import eu.siacs.conversations.entities.ReadByMarker;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.http.HttpDownloadConnection;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.Patterns;
 116import eu.siacs.conversations.utils.QuickLoader;
 117import eu.siacs.conversations.utils.StylingHelper;
 118import eu.siacs.conversations.utils.TimeFrameUtils;
 119import eu.siacs.conversations.utils.UIHelper;
 120import eu.siacs.conversations.xml.Namespace;
 121import eu.siacs.conversations.xmpp.Jid;
 122import eu.siacs.conversations.xmpp.XmppConnection;
 123import eu.siacs.conversations.xmpp.chatstate.ChatState;
 124import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 125import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 126import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 127import eu.siacs.conversations.xmpp.jingle.Media;
 128import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 129import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 130
 131import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 132import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 133import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 134import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 135import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 136import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 137
 138import org.jetbrains.annotations.NotNull;
 139
 140
 141public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 142
 143
 144    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 145    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 146    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 147    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 148    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 149    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 150    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 151    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 152    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 153    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 154    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 155    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 156    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 157    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 158    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 159    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 160    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 161
 162    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 163    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 164    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 165    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 166    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 167    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 168
 169    private final List<Message> messageList = new ArrayList<>();
 170    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 171    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 172    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 173    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 174    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 175    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 176    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 177    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 178    public Uri mPendingEditorContent = null;
 179    protected MessageAdapter messageListAdapter;
 180    private MediaPreviewAdapter mediaPreviewAdapter;
 181    private String lastMessageUuid = null;
 182    private Conversation conversation;
 183    private FragmentConversationBinding binding;
 184    private Toast messageLoaderToast;
 185    private ConversationsActivity activity;
 186    private boolean reInitRequiredOnStart = true;
 187    private final OnClickListener clickToMuc = new OnClickListener() {
 188
 189        @Override
 190        public void onClick(View v) {
 191            ConferenceDetailsActivity.open(getActivity(), conversation);
 192        }
 193    };
 194    private final OnClickListener leaveMuc = new OnClickListener() {
 195
 196        @Override
 197        public void onClick(View v) {
 198            activity.xmppConnectionService.archiveConversation(conversation);
 199        }
 200    };
 201    private final OnClickListener joinMuc = new OnClickListener() {
 202
 203        @Override
 204        public void onClick(View v) {
 205            activity.xmppConnectionService.joinMuc(conversation);
 206        }
 207    };
 208
 209    private final OnClickListener acceptJoin = new OnClickListener() {
 210        @Override
 211        public void onClick(View v) {
 212            conversation.setAttribute("accept_non_anonymous", true);
 213            activity.xmppConnectionService.updateConversation(conversation);
 214            activity.xmppConnectionService.joinMuc(conversation);
 215        }
 216    };
 217
 218    private final OnClickListener enterPassword = new OnClickListener() {
 219
 220        @Override
 221        public void onClick(View v) {
 222            MucOptions muc = conversation.getMucOptions();
 223            String password = muc.getPassword();
 224            if (password == null) {
 225                password = "";
 226            }
 227            activity.quickPasswordEdit(password, value -> {
 228                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 229                return null;
 230            });
 231        }
 232    };
 233    private final OnScrollListener mOnScrollListener = new OnScrollListener() {
 234
 235        @Override
 236        public void onScrollStateChanged(AbsListView view, int scrollState) {
 237            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 238                fireReadEvent();
 239            }
 240        }
 241
 242        @Override
 243        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 244            toggleScrollDownButton(view);
 245            synchronized (ConversationFragment.this.messageList) {
 246                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 247                    long timestamp;
 248                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 249                        timestamp = messageList.get(1).getTimeSent();
 250                    } else {
 251                        timestamp = messageList.get(0).getTimeSent();
 252                    }
 253                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 254                        @Override
 255                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 256                            if (ConversationFragment.this.conversation != conversation) {
 257                                conversation.messagesLoaded.set(true);
 258                                return;
 259                            }
 260                            runOnUiThread(() -> {
 261                                synchronized (messageList) {
 262                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 263                                    Message message = null;
 264                                    int childPos;
 265                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 266                                        message = messageList.get(oldPosition + childPos);
 267                                        if (message.getType() != Message.TYPE_STATUS) {
 268                                            break;
 269                                        }
 270                                    }
 271                                    final String uuid = message != null ? message.getUuid() : null;
 272                                    View v = binding.messagesView.getChildAt(childPos);
 273                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 274                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 275                                    try {
 276                                        updateStatusMessages();
 277                                    } catch (IllegalStateException e) {
 278                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 279                                    }
 280                                    messageListAdapter.notifyDataSetChanged();
 281                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 282                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 283                                    if (messageLoaderToast != null) {
 284                                        messageLoaderToast.cancel();
 285                                    }
 286                                    conversation.messagesLoaded.set(true);
 287                                }
 288                            });
 289                        }
 290
 291                        @Override
 292                        public void informUser(final int resId) {
 293
 294                            runOnUiThread(() -> {
 295                                if (messageLoaderToast != null) {
 296                                    messageLoaderToast.cancel();
 297                                }
 298                                if (ConversationFragment.this.conversation != conversation) {
 299                                    return;
 300                                }
 301                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 302                                messageLoaderToast.show();
 303                            });
 304
 305                        }
 306                    });
 307
 308                }
 309            }
 310        }
 311    };
 312    private final EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 313        @Override
 314        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 315            // try to get permission to read the image, if applicable
 316            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 317                try {
 318                    inputContentInfo.requestPermission();
 319                } catch (Exception e) {
 320                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 321                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 322                    ).show();
 323                    return false;
 324                }
 325            }
 326            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 327                attachEditorContentToConversation(inputContentInfo.getContentUri());
 328            } else {
 329                mPendingEditorContent = inputContentInfo.getContentUri();
 330            }
 331            return true;
 332        }
 333    };
 334    private Message selectedMessage;
 335    private final OnClickListener mEnableAccountListener = new OnClickListener() {
 336        @Override
 337        public void onClick(View v) {
 338            final Account account = conversation == null ? null : conversation.getAccount();
 339            if (account != null) {
 340                account.setOption(Account.OPTION_DISABLED, false);
 341                activity.xmppConnectionService.updateAccount(account);
 342            }
 343        }
 344    };
 345    private final OnClickListener mUnblockClickListener = new OnClickListener() {
 346        @Override
 347        public void onClick(final View v) {
 348            v.post(() -> v.setVisibility(View.INVISIBLE));
 349            if (conversation.isDomainBlocked()) {
 350                BlockContactDialog.show(activity, conversation);
 351            } else {
 352                unblockConversation(conversation);
 353            }
 354        }
 355    };
 356    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 357    private final OnClickListener mAddBackClickListener = new OnClickListener() {
 358
 359        @Override
 360        public void onClick(View v) {
 361            final Contact contact = conversation == null ? null : conversation.getContact();
 362            if (contact != null) {
 363                activity.xmppConnectionService.createContact(contact, true);
 364                activity.switchToContactDetails(contact);
 365            }
 366        }
 367    };
 368    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 369    private final OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 370        @Override
 371        public void onClick(View v) {
 372            final Contact contact = conversation == null ? null : conversation.getContact();
 373            if (contact != null) {
 374                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 375                        activity.xmppConnectionService.getPresenceGenerator()
 376                                .sendPresenceUpdatesTo(contact));
 377                hideSnackbar();
 378            }
 379        }
 380    };
 381    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 382
 383        @Override
 384        public void onClick(View v) {
 385            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 386            if (pendingIntent != null) {
 387                try {
 388                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 389                            REQUEST_DECRYPT_PGP,
 390                            null,
 391                            0,
 392                            0,
 393                            0);
 394                } catch (SendIntentException e) {
 395                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 396                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 397                }
 398            }
 399            updateSnackBar(conversation);
 400        }
 401    };
 402    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 403    private final OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 404        if (actionId == EditorInfo.IME_ACTION_SEND) {
 405            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 406            if (imm != null && imm.isFullscreenMode()) {
 407                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 408            }
 409            sendMessage();
 410            return true;
 411        } else {
 412            return false;
 413        }
 414    };
 415    private final OnClickListener mScrollButtonListener = new OnClickListener() {
 416
 417        @Override
 418        public void onClick(View v) {
 419            stopScrolling();
 420            setSelection(binding.messagesView.getCount() - 1, true);
 421        }
 422    };
 423    private final OnClickListener mSendButtonListener = new OnClickListener() {
 424
 425        @Override
 426        public void onClick(View v) {
 427            Object tag = v.getTag();
 428            if (tag instanceof SendButtonAction) {
 429                SendButtonAction action = (SendButtonAction) tag;
 430                switch (action) {
 431                    case TAKE_PHOTO:
 432                    case RECORD_VIDEO:
 433                    case SEND_LOCATION:
 434                    case RECORD_VOICE:
 435                    case CHOOSE_PICTURE:
 436                        attachFile(action.toChoice());
 437                        break;
 438                    case CANCEL:
 439                        if (conversation != null) {
 440                            if (conversation.setCorrectingMessage(null)) {
 441                                binding.textinput.setText("");
 442                                binding.textinput.append(conversation.getDraftMessage());
 443                                conversation.setDraftMessage(null);
 444                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 445                                conversation.setNextCounterpart(null);
 446                                binding.textinput.setText("");
 447                            } else {
 448                                binding.textinput.setText("");
 449                            }
 450                            updateChatMsgHint();
 451                            updateSendButton();
 452                            updateEditablity();
 453                        }
 454                        break;
 455                    default:
 456                        sendMessage();
 457                }
 458            } else {
 459                sendMessage();
 460            }
 461        }
 462    };
 463    private int completionIndex = 0;
 464    private int lastCompletionLength = 0;
 465    private String incomplete;
 466    private int lastCompletionCursor;
 467    private boolean firstWord = false;
 468    private Message mPendingDownloadableMessage;
 469
 470    private static ConversationFragment findConversationFragment(FragmentManager fragmentManager) {
 471        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 472        if (fragment instanceof ConversationFragment) {
 473            return (ConversationFragment) fragment;
 474        }
 475        fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 476        if (fragment instanceof ConversationFragment) {
 477            return (ConversationFragment) fragment;
 478        }
 479        return null;
 480    }
 481
 482    public static void startStopPending(FragmentManager fragmentManager) {
 483        ConversationFragment fragment = findConversationFragment(fragmentManager);
 484        if (fragment != null) {
 485            fragment.messageListAdapter.startStopPending();
 486        }
 487    }
 488
 489    public static void downloadFile(FragmentManager fragmentManager, Message message) {
 490        ConversationFragment fragment = findConversationFragment(fragmentManager);
 491        if (fragment != null) {
 492            fragment.startDownloadable(message);
 493        }
 494    }
 495
 496    public static void registerPendingMessage(FragmentManager fragmentManager, Message message) {
 497        ConversationFragment fragment = findConversationFragment(fragmentManager);
 498        if (fragment != null) {
 499            fragment.pendingMessage.push(message);
 500        }
 501    }
 502
 503    public static void openPendingMessage(FragmentManager fragmentManager) {
 504        ConversationFragment fragment = findConversationFragment(fragmentManager);
 505        if (fragment != null) {
 506            Message message = fragment.pendingMessage.pop();
 507            if (message != null) {
 508                fragment.messageListAdapter.openDownloadable(message);
 509            }
 510        }
 511    }
 512
 513    public static Conversation getConversation(FragmentManager fragmentManager) {
 514        return getConversation(fragmentManager, R.id.secondary_fragment);
 515    }
 516
 517    private static Conversation getConversation(FragmentManager fragmentManager, @IdRes int res) {
 518        final Fragment fragment = fragmentManager.findFragmentById(res);
 519        if (fragment instanceof ConversationFragment) {
 520            return ((ConversationFragment) fragment).getConversation();
 521        } else {
 522            return null;
 523        }
 524    }
 525
 526    public static ConversationFragment get(FragmentManager fragmentManager) {
 527        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 528        if (fragment instanceof ConversationFragment) {
 529            return (ConversationFragment) fragment;
 530        } else {
 531            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 532            return fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 533        }
 534    }
 535
 536    public static Conversation getConversationReliable(FragmentManager fragmentManager) {
 537        final Conversation conversation = getConversation(fragmentManager, R.id.secondary_fragment);
 538        if (conversation != null) {
 539            return conversation;
 540        }
 541        return getConversation(fragmentManager, R.id.main_fragment);
 542    }
 543
 544    private static boolean scrolledToBottom(AbsListView listView) {
 545        final int count = listView.getCount();
 546        if (count == 0) {
 547            return true;
 548        } else if (listView.getLastVisiblePosition() == count - 1) {
 549            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 550            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 551        } else {
 552            return false;
 553        }
 554    }
 555
 556    private void toggleScrollDownButton() {
 557        toggleScrollDownButton(binding.messagesView);
 558    }
 559
 560    private void toggleScrollDownButton(AbsListView listView) {
 561        if (conversation == null) {
 562            return;
 563        }
 564        if (scrolledToBottom(listView)) {
 565            lastMessageUuid = null;
 566            hideUnreadMessagesCount();
 567        } else {
 568            binding.scrollToBottomButton.setEnabled(true);
 569            binding.scrollToBottomButton.show();
 570            if (lastMessageUuid == null) {
 571                lastMessageUuid = conversation.getLatestMessage().getUuid();
 572            }
 573            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 574                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 575            }
 576        }
 577    }
 578
 579    private int getIndexOf(String uuid, List<Message> messages) {
 580        if (uuid == null) {
 581            return messages.size() - 1;
 582        }
 583        for (int i = 0; i < messages.size(); ++i) {
 584            if (uuid.equals(messages.get(i).getUuid())) {
 585                return i;
 586            } else {
 587                Message next = messages.get(i);
 588                while (next != null && next.wasMergedIntoPrevious()) {
 589                    if (uuid.equals(next.getUuid())) {
 590                        return i;
 591                    }
 592                    next = next.next();
 593                }
 594
 595            }
 596        }
 597        return -1;
 598    }
 599
 600    private ScrollState getScrollPosition() {
 601        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 602        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 603            return null;
 604        } else {
 605            final int pos = listView.getFirstVisiblePosition();
 606            final View view = listView.getChildAt(0);
 607            if (view == null) {
 608                return null;
 609            } else {
 610                return new ScrollState(pos, view.getTop());
 611            }
 612        }
 613    }
 614
 615    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 616        if (scrollPosition != null) {
 617
 618            this.lastMessageUuid = lastMessageUuid;
 619            if (lastMessageUuid != null) {
 620                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 621            }
 622            //TODO maybe this needs a 'post'
 623            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 624            toggleScrollDownButton();
 625        }
 626    }
 627
 628    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 629        if (conversation == null) {
 630            return;
 631        }
 632        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 633
 634            @Override
 635            public void success(Message message) {
 636
 637            }
 638
 639            @Override
 640            public void error(int errorCode, Message object) {
 641                //TODO show possible pgp error
 642            }
 643
 644            @Override
 645            public void userInputRequired(PendingIntent pi, Message object) {
 646
 647            }
 648        });
 649    }
 650
 651    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 652        if (conversation == null) {
 653            return;
 654        }
 655        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 656        prepareFileToast.show();
 657        activity.delegateUriPermissionsToService(uri);
 658        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 659            @Override
 660            public void inform(final String text) {
 661                hidePrepareFileToast(prepareFileToast);
 662                runOnUiThread(() -> activity.replaceToast(text));
 663            }
 664
 665            @Override
 666            public void success(Message message) {
 667                runOnUiThread(() -> activity.hideToast());
 668                hidePrepareFileToast(prepareFileToast);
 669            }
 670
 671            @Override
 672            public void error(final int errorCode, Message message) {
 673                hidePrepareFileToast(prepareFileToast);
 674                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 675
 676            }
 677
 678            @Override
 679            public void userInputRequired(PendingIntent pi, Message message) {
 680                hidePrepareFileToast(prepareFileToast);
 681            }
 682        });
 683    }
 684
 685    public void attachEditorContentToConversation(Uri uri) {
 686        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 687        toggleInputMethod();
 688    }
 689
 690    private void attachImageToConversation(Conversation conversation, Uri uri) {
 691        if (conversation == null) {
 692            return;
 693        }
 694        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 695        prepareFileToast.show();
 696        activity.delegateUriPermissionsToService(uri);
 697        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 698                new UiCallback<Message>() {
 699
 700                    @Override
 701                    public void userInputRequired(PendingIntent pi, Message object) {
 702                        hidePrepareFileToast(prepareFileToast);
 703                    }
 704
 705                    @Override
 706                    public void success(Message message) {
 707                        hidePrepareFileToast(prepareFileToast);
 708                    }
 709
 710                    @Override
 711                    public void error(final int error, Message message) {
 712                        hidePrepareFileToast(prepareFileToast);
 713                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 714                    }
 715                });
 716    }
 717
 718    private void hidePrepareFileToast(final Toast prepareFileToast) {
 719        if (prepareFileToast != null && activity != null) {
 720            activity.runOnUiThread(prepareFileToast::cancel);
 721        }
 722    }
 723
 724    private void sendMessage() {
 725        if (mediaPreviewAdapter.hasAttachments()) {
 726            commitAttachments();
 727            return;
 728        }
 729        final Editable text = this.binding.textinput.getText();
 730        final String body = text == null ? "" : text.toString();
 731        final Conversation conversation = this.conversation;
 732        if (body.length() == 0 || conversation == null) {
 733            return;
 734        }
 735        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 736            return;
 737        }
 738        final Message message;
 739        if (conversation.getCorrectingMessage() == null) {
 740            message = new Message(conversation, body, conversation.getNextEncryption());
 741            Message.configurePrivateMessage(message);
 742        } else {
 743            message = conversation.getCorrectingMessage();
 744            message.setBody(body);
 745            message.putEdited(message.getUuid(), message.getServerMsgId());
 746            message.setServerMsgId(null);
 747            message.setUuid(UUID.randomUUID().toString());
 748        }
 749        switch (conversation.getNextEncryption()) {
 750            case Message.ENCRYPTION_PGP:
 751                sendPgpMessage(message);
 752                break;
 753            default:
 754                sendMessage(message);
 755        }
 756    }
 757
 758    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 759        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(requestCode);
 760    }
 761
 762    protected boolean trustKeysIfNeeded(int requestCode) {
 763        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 764        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 765        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 766        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 767        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 768        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 769        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 770        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 771        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 772            axolotlService.createSessionsIfNeeded(conversation);
 773            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 774            String[] contacts = new String[targets.size()];
 775            for (int i = 0; i < contacts.length; ++i) {
 776                contacts[i] = targets.get(i).toString();
 777            }
 778            intent.putExtra("contacts", contacts);
 779            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toEscapedString());
 780            intent.putExtra("conversation", conversation.getUuid());
 781            startActivityForResult(intent, requestCode);
 782            return true;
 783        } else {
 784            return false;
 785        }
 786    }
 787
 788    public void updateChatMsgHint() {
 789        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 790        if (conversation.getCorrectingMessage() != null) {
 791            this.binding.textInputHint.setVisibility(View.GONE);
 792            this.binding.textinput.setHint(R.string.send_corrected_message);
 793        } else if (multi && conversation.getNextCounterpart() != null) {
 794            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 795            this.binding.textInputHint.setVisibility(View.VISIBLE);
 796            this.binding.textInputHint.setText(getString(
 797                    R.string.send_private_message_to,
 798                    conversation.getNextCounterpart().getResource()));
 799        } else if (multi && !conversation.getMucOptions().participating()) {
 800            this.binding.textInputHint.setVisibility(View.GONE);
 801            this.binding.textinput.setHint(R.string.you_are_not_participating);
 802        } else {
 803            this.binding.textInputHint.setVisibility(View.GONE);
 804            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 805            getActivity().invalidateOptionsMenu();
 806        }
 807    }
 808
 809    public void setupIme() {
 810        this.binding.textinput.refreshIme();
 811    }
 812
 813    private void handleActivityResult(ActivityResult activityResult) {
 814        if (activityResult.resultCode == Activity.RESULT_OK) {
 815            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 816        } else {
 817            handleNegativeActivityResult(activityResult.requestCode);
 818        }
 819    }
 820
 821    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 822        switch (requestCode) {
 823            case REQUEST_TRUST_KEYS_TEXT:
 824                sendMessage();
 825                break;
 826            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 827                commitAttachments();
 828                break;
 829            case REQUEST_START_AUDIO_CALL:
 830                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 831                break;
 832            case REQUEST_START_VIDEO_CALL:
 833                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 834                break;
 835            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 836                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 837                mediaPreviewAdapter.addMediaPreviews(imageUris);
 838                toggleInputMethod();
 839                break;
 840            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 841                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 842                if (takePhotoUri != null) {
 843                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 844                    toggleInputMethod();
 845                } else {
 846                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 847                }
 848                break;
 849            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 850            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 851            case ATTACHMENT_CHOICE_RECORD_VOICE:
 852                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 853                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 854                mediaPreviewAdapter.addMediaPreviews(fileUris);
 855                toggleInputMethod();
 856                break;
 857            case ATTACHMENT_CHOICE_LOCATION:
 858                double latitude = data.getDoubleExtra("latitude", 0);
 859                double longitude = data.getDoubleExtra("longitude", 0);
 860                Uri geo = Uri.parse("geo:" + latitude + "," + longitude);
 861                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 862                toggleInputMethod();
 863                break;
 864            case REQUEST_INVITE_TO_CONVERSATION:
 865                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 866                if (invite != null) {
 867                    if (invite.execute(activity)) {
 868                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 869                        activity.mToast.show();
 870                    }
 871                }
 872                break;
 873        }
 874    }
 875
 876    private void commitAttachments() {
 877        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 878        if (anyNeedsExternalStoragePermission(attachments) && !hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 879            return;
 880        }
 881        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 882            return;
 883        }
 884        final PresenceSelector.OnPresenceSelected callback = () -> {
 885            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 886                final Attachment attachment = i.next();
 887                if (attachment.getType() == Attachment.Type.LOCATION) {
 888                    attachLocationToConversation(conversation, attachment.getUri());
 889                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 890                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 891                    attachImageToConversation(conversation, attachment.getUri());
 892                } else {
 893                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 894                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 895                }
 896            }
 897            mediaPreviewAdapter.notifyDataSetChanged();
 898            toggleInputMethod();
 899        };
 900        if (conversation == null
 901                || conversation.getMode() == Conversation.MODE_MULTI
 902                || Attachment.canBeSendInband(attachments)
 903                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 904            callback.onPresenceSelected();
 905        } else {
 906            activity.selectPresence(conversation, callback);
 907        }
 908    }
 909
 910
 911    private static boolean anyNeedsExternalStoragePermission(final Collection<Attachment> attachments) {
 912        for (final Attachment attachment : attachments) {
 913            if (attachment.getType() != Attachment.Type.LOCATION) {
 914                return true;
 915            }
 916        }
 917        return false;
 918    }
 919
 920    public void toggleInputMethod() {
 921        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 922        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 923        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 924        updateSendButton();
 925    }
 926
 927    private void handleNegativeActivityResult(int requestCode) {
 928        switch (requestCode) {
 929            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 930                if (pendingTakePhotoUri.clear()) {
 931                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 932                }
 933                break;
 934        }
 935    }
 936
 937    @Override
 938    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 939        super.onActivityResult(requestCode, resultCode, data);
 940        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 941        if (activity != null && activity.xmppConnectionService != null) {
 942            handleActivityResult(activityResult);
 943        } else {
 944            this.postponedActivityResult.push(activityResult);
 945        }
 946    }
 947
 948    public void unblockConversation(final Blockable conversation) {
 949        activity.xmppConnectionService.sendUnblockRequest(conversation);
 950    }
 951
 952    @Override
 953    public void onAttach(Activity activity) {
 954        super.onAttach(activity);
 955        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 956        if (activity instanceof ConversationsActivity) {
 957            this.activity = (ConversationsActivity) activity;
 958        } else {
 959            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 960        }
 961    }
 962
 963    @Override
 964    public void onDetach() {
 965        super.onDetach();
 966        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 967    }
 968
 969    @Override
 970    public void onCreate(Bundle savedInstanceState) {
 971        super.onCreate(savedInstanceState);
 972        setHasOptionsMenu(true);
 973    }
 974
 975    @Override
 976    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 977        menuInflater.inflate(R.menu.fragment_conversation, menu);
 978        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 979        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 980        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 981        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 982        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 983        final MenuItem menuCall = menu.findItem(R.id.action_call);
 984        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
 985        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 986        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
 987
 988
 989        if (conversation != null) {
 990            if (conversation.getMode() == Conversation.MODE_MULTI) {
 991                menuContactDetails.setVisible(false);
 992                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 993                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 994                menuCall.setVisible(false);
 995                menuOngoingCall.setVisible(false);
 996            } else {
 997                final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
 998                final Optional<OngoingRtpSession> ongoingRtpSession = service == null ? Optional.absent() : service.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
 999                if (ongoingRtpSession.isPresent()) {
1000                    menuOngoingCall.setVisible(true);
1001                    menuCall.setVisible(false);
1002                } else {
1003                    menuOngoingCall.setVisible(false);
1004                    final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
1005                    final boolean cameraAvailable = activity != null && activity.isCameraFeatureAvailable();
1006                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1007                    menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1008                }
1009                menuContactDetails.setVisible(!this.conversation.withSelf());
1010                menuMucDetails.setVisible(false);
1011                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
1012            }
1013            if (conversation.isMuted()) {
1014                menuMute.setVisible(false);
1015            } else {
1016                menuUnmute.setVisible(false);
1017            }
1018            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1019            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1020            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1021                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1022            } else {
1023                menuTogglePinned.setTitle(R.string.add_to_favorites);
1024            }
1025        }
1026        super.onCreateOptionsMenu(menu, menuInflater);
1027    }
1028
1029    @Override
1030    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1031        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1032        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
1033
1034        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
1035
1036        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1037        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1038
1039        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1040
1041        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1042        binding.messagesView.setOnScrollListener(mOnScrollListener);
1043        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1044        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1045        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1046        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1047        messageListAdapter.setOnContactPictureClicked(this);
1048        messageListAdapter.setOnContactPictureLongClicked(this);
1049        binding.messagesView.setAdapter(messageListAdapter);
1050
1051        registerForContextMenu(binding.messagesView);
1052
1053        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1054            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1055        }
1056
1057        return binding.getRoot();
1058    }
1059
1060    @Override
1061    public void onDestroyView() {
1062        super.onDestroyView();
1063        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1064        messageListAdapter.setOnContactPictureClicked(null);
1065        messageListAdapter.setOnContactPictureLongClicked(null);
1066    }
1067
1068    private void quoteText(String text) {
1069        if (binding.textinput.isEnabled()) {
1070            binding.textinput.insertAsQuote(text);
1071            binding.textinput.requestFocus();
1072            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1073            if (inputMethodManager != null) {
1074                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1075            }
1076        }
1077    }
1078
1079    private void quoteMessage(Message message) {
1080        quoteText(MessageUtils.prepareQuote(message));
1081    }
1082
1083    @Override
1084    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1085        //This should cancel any remaining click events that would otherwise trigger links
1086        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1087        synchronized (this.messageList) {
1088            super.onCreateContextMenu(menu, v, menuInfo);
1089            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1090            this.selectedMessage = this.messageList.get(acmi.position);
1091            populateContextMenu(menu);
1092        }
1093    }
1094
1095    private void populateContextMenu(ContextMenu menu) {
1096        final Message m = this.selectedMessage;
1097        final Transferable t = m.getTransferable();
1098        Message relevantForCorrection = m;
1099        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1100            relevantForCorrection = relevantForCorrection.next();
1101        }
1102        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1103
1104            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1105                return;
1106            }
1107
1108            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1109                return;
1110            }
1111
1112            final boolean deleted = m.isDeleted();
1113            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1114                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1115            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1116            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1117            menu.setHeaderTitle(R.string.message_options);
1118            MenuItem openWith = menu.findItem(R.id.open_with);
1119            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1120            MenuItem copyLink = menu.findItem(R.id.copy_link);
1121            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1122            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1123            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1124            MenuItem shareWith = menu.findItem(R.id.share_with);
1125            MenuItem sendAgain = menu.findItem(R.id.send_again);
1126            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1127            MenuItem downloadFile = menu.findItem(R.id.download_file);
1128            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1129            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1130            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1131            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1132            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1133            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable() && !unInitiatedButKnownSize && t == null) {
1134                copyMessage.setVisible(true);
1135                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1136                String body = m.getMergedBody().toString();
1137                if (ShareUtil.containsXmppUri(body)) {
1138                    copyLink.setTitle(R.string.copy_jabber_id);
1139                    copyLink.setVisible(true);
1140                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1141                    copyLink.setVisible(true);
1142                }
1143            }
1144            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1145                retryDecryption.setVisible(true);
1146            }
1147            if (!showError
1148                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1149                    && !m.isGeoUri()
1150                    && relevantForCorrection.isLastCorrectableMessage()
1151                    && m.getConversation() instanceof Conversation) {
1152                correctMessage.setVisible(true);
1153            }
1154            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable()) && !unInitiatedButKnownSize && t == null) {
1155                shareWith.setVisible(true);
1156            }
1157            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1158                sendAgain.setVisible(true);
1159            }
1160            if (m.hasFileOnRemoteHost()
1161                    || m.isGeoUri()
1162                    || m.treatAsDownloadable()
1163                    || unInitiatedButKnownSize
1164                    || t instanceof HttpDownloadConnection) {
1165                copyUrl.setVisible(true);
1166            }
1167            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1168                downloadFile.setVisible(true);
1169                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1170            }
1171            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1172                    || m.getStatus() == Message.STATUS_UNSEND
1173                    || m.getStatus() == Message.STATUS_OFFERED;
1174            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1175            if (cancelable) {
1176                cancelTransmission.setVisible(true);
1177            }
1178            if (m.isFileOrImage() && !deleted && !cancelable) {
1179                String path = m.getRelativeFilePath();
1180                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1181                    deleteFile.setVisible(true);
1182                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1183                }
1184            }
1185            if (showError) {
1186                showErrorMessage.setVisible(true);
1187            }
1188            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1189            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1190                openWith.setVisible(true);
1191            }
1192        }
1193    }
1194
1195    @Override
1196    public boolean onContextItemSelected(MenuItem item) {
1197        switch (item.getItemId()) {
1198            case R.id.share_with:
1199                ShareUtil.share(activity, selectedMessage);
1200                return true;
1201            case R.id.correct_message:
1202                correctMessage(selectedMessage);
1203                return true;
1204            case R.id.copy_message:
1205                ShareUtil.copyToClipboard(activity, selectedMessage);
1206                return true;
1207            case R.id.copy_link:
1208                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1209                return true;
1210            case R.id.quote_message:
1211                quoteMessage(selectedMessage);
1212                return true;
1213            case R.id.send_again:
1214                resendMessage(selectedMessage);
1215                return true;
1216            case R.id.copy_url:
1217                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1218                return true;
1219            case R.id.download_file:
1220                startDownloadable(selectedMessage);
1221                return true;
1222            case R.id.cancel_transmission:
1223                cancelTransmission(selectedMessage);
1224                return true;
1225            case R.id.retry_decryption:
1226                retryDecryption(selectedMessage);
1227                return true;
1228            case R.id.delete_file:
1229                deleteFile(selectedMessage);
1230                return true;
1231            case R.id.show_error_message:
1232                showErrorMessage(selectedMessage);
1233                return true;
1234            case R.id.open_with:
1235                openWith(selectedMessage);
1236                return true;
1237            default:
1238                return super.onContextItemSelected(item);
1239        }
1240    }
1241
1242    @Override
1243    public boolean onOptionsItemSelected(final MenuItem item) {
1244        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1245            return false;
1246        } else if (conversation == null) {
1247            return super.onOptionsItemSelected(item);
1248        }
1249        switch (item.getItemId()) {
1250            case R.id.encryption_choice_axolotl:
1251            case R.id.encryption_choice_pgp:
1252            case R.id.encryption_choice_none:
1253                handleEncryptionSelection(item);
1254                break;
1255            case R.id.attach_choose_picture:
1256            case R.id.attach_take_picture:
1257            case R.id.attach_record_video:
1258            case R.id.attach_choose_file:
1259            case R.id.attach_record_voice:
1260            case R.id.attach_location:
1261                handleAttachmentSelection(item);
1262                break;
1263            case R.id.action_search:
1264                startSearch();
1265                break;
1266            case R.id.action_archive:
1267                activity.xmppConnectionService.archiveConversation(conversation);
1268                break;
1269            case R.id.action_contact_details:
1270                activity.switchToContactDetails(conversation.getContact());
1271                break;
1272            case R.id.action_muc_details:
1273                ConferenceDetailsActivity.open(getActivity(), conversation);
1274                break;
1275            case R.id.action_invite:
1276                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1277                break;
1278            case R.id.action_clear_history:
1279                clearHistoryDialog(conversation);
1280                break;
1281            case R.id.action_mute:
1282                muteConversationDialog(conversation);
1283                break;
1284            case R.id.action_unmute:
1285                unmuteConversation(conversation);
1286                break;
1287            case R.id.action_block:
1288            case R.id.action_unblock:
1289                final Activity activity = getActivity();
1290                if (activity instanceof XmppActivity) {
1291                    BlockContactDialog.show((XmppActivity) activity, conversation);
1292                }
1293                break;
1294            case R.id.action_audio_call:
1295                checkPermissionAndTriggerAudioCall();
1296                break;
1297            case R.id.action_video_call:
1298                checkPermissionAndTriggerVideoCall();
1299                break;
1300            case R.id.action_ongoing_call:
1301                returnToOngoingCall();
1302                break;
1303            case R.id.action_toggle_pinned:
1304                togglePinned();
1305                break;
1306            default:
1307                break;
1308        }
1309        return super.onOptionsItemSelected(item);
1310    }
1311
1312    private void startSearch() {
1313        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1314        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1315        startActivity(intent);
1316    }
1317
1318    private void returnToOngoingCall() {
1319        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1320        if (ongoingRtpSession.isPresent()) {
1321            final OngoingRtpSession id = ongoingRtpSession.get();
1322            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1323            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1324            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1325            if (id instanceof AbstractJingleConnection.Id) {
1326                intent.setAction(Intent.ACTION_VIEW);
1327                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1328            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1329                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1330                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1331                } else {
1332                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1333                }
1334            }
1335            startActivity(intent);
1336        }
1337
1338    }
1339
1340    private void togglePinned() {
1341        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1342        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1343        activity.xmppConnectionService.updateConversation(conversation);
1344        activity.invalidateOptionsMenu();
1345    }
1346
1347    private void checkPermissionAndTriggerAudioCall() {
1348        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1349            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1350            return;
1351        }
1352        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1353            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1354        }
1355    }
1356
1357    private void checkPermissionAndTriggerVideoCall() {
1358        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1359            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1360            return;
1361        }
1362        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1363            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1364        }
1365    }
1366
1367
1368    private void triggerRtpSession(final String action) {
1369        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1370            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1371            return;
1372        }
1373        final Contact contact = conversation.getContact();
1374        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1375            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1376        } else {
1377            final RtpCapability.Capability capability;
1378            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1379                capability = RtpCapability.Capability.VIDEO;
1380            } else {
1381                capability = RtpCapability.Capability.AUDIO;
1382            }
1383            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1384                triggerRtpSession(contact.getAccount(), fullJid, action);
1385            });
1386        }
1387    }
1388
1389    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1390        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1391        intent.setAction(action);
1392        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1393        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1394        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1395        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1396        startActivity(intent);
1397    }
1398
1399    private void handleAttachmentSelection(MenuItem item) {
1400        switch (item.getItemId()) {
1401            case R.id.attach_choose_picture:
1402                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1403                break;
1404            case R.id.attach_take_picture:
1405                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1406                break;
1407            case R.id.attach_record_video:
1408                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1409                break;
1410            case R.id.attach_choose_file:
1411                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1412                break;
1413            case R.id.attach_record_voice:
1414                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1415                break;
1416            case R.id.attach_location:
1417                attachFile(ATTACHMENT_CHOICE_LOCATION);
1418                break;
1419        }
1420    }
1421
1422    private void handleEncryptionSelection(MenuItem item) {
1423        if (conversation == null) {
1424            return;
1425        }
1426        final boolean updated;
1427        switch (item.getItemId()) {
1428            case R.id.encryption_choice_none:
1429                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1430                item.setChecked(true);
1431                break;
1432            case R.id.encryption_choice_pgp:
1433                if (activity.hasPgp()) {
1434                    if (conversation.getAccount().getPgpSignature() != null) {
1435                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1436                        item.setChecked(true);
1437                    } else {
1438                        updated = false;
1439                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1440                    }
1441                } else {
1442                    activity.showInstallPgpDialog();
1443                    updated = false;
1444                }
1445                break;
1446            case R.id.encryption_choice_axolotl:
1447                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1448                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1449                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1450                item.setChecked(true);
1451                break;
1452            default:
1453                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1454                break;
1455        }
1456        if (updated) {
1457            activity.xmppConnectionService.updateConversation(conversation);
1458        }
1459        updateChatMsgHint();
1460        getActivity().invalidateOptionsMenu();
1461        activity.refreshUi();
1462    }
1463
1464    public void attachFile(final int attachmentChoice) {
1465        attachFile(attachmentChoice, true);
1466    }
1467
1468    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1469        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1470            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1471                return;
1472            }
1473        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1474            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1475                return;
1476            }
1477        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1478            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1479                return;
1480            }
1481        }
1482        if (updateRecentlyUsed) {
1483            storeRecentlyUsedQuickAction(attachmentChoice);
1484        }
1485        final int encryption = conversation.getNextEncryption();
1486        final int mode = conversation.getMode();
1487        if (encryption == Message.ENCRYPTION_PGP) {
1488            if (activity.hasPgp()) {
1489                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1490                    activity.xmppConnectionService.getPgpEngine().hasKey(
1491                            conversation.getContact(),
1492                            new UiCallback<Contact>() {
1493
1494                                @Override
1495                                public void userInputRequired(PendingIntent pi, Contact contact) {
1496                                    startPendingIntent(pi, attachmentChoice);
1497                                }
1498
1499                                @Override
1500                                public void success(Contact contact) {
1501                                    invokeAttachFileIntent(attachmentChoice);
1502                                }
1503
1504                                @Override
1505                                public void error(int error, Contact contact) {
1506                                    activity.replaceToast(getString(error));
1507                                }
1508                            });
1509                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1510                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1511                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1512                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1513                        warning.show();
1514                    }
1515                    invokeAttachFileIntent(attachmentChoice);
1516                } else {
1517                    showNoPGPKeyDialog(false, (dialog, which) -> {
1518                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1519                        activity.xmppConnectionService.updateConversation(conversation);
1520                        invokeAttachFileIntent(attachmentChoice);
1521                    });
1522                }
1523            } else {
1524                activity.showInstallPgpDialog();
1525            }
1526        } else {
1527            invokeAttachFileIntent(attachmentChoice);
1528        }
1529    }
1530
1531    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1532        try {
1533            activity.getPreferences().edit()
1534                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1535                    .apply();
1536        } catch (IllegalArgumentException e) {
1537            //just do not save
1538        }
1539    }
1540
1541    @Override
1542    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1543        if (grantResults.length > 0) {
1544            if (allGranted(grantResults)) {
1545                switch (requestCode) {
1546                    case REQUEST_START_DOWNLOAD:
1547                        if (this.mPendingDownloadableMessage != null) {
1548                            startDownloadable(this.mPendingDownloadableMessage);
1549                        }
1550                        break;
1551                    case REQUEST_ADD_EDITOR_CONTENT:
1552                        if (this.mPendingEditorContent != null) {
1553                            attachEditorContentToConversation(this.mPendingEditorContent);
1554                        }
1555                        break;
1556                    case REQUEST_COMMIT_ATTACHMENTS:
1557                        commitAttachments();
1558                        break;
1559                    case REQUEST_START_AUDIO_CALL:
1560                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1561                        break;
1562                    case REQUEST_START_VIDEO_CALL:
1563                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1564                        break;
1565                    default:
1566                        attachFile(requestCode);
1567                        break;
1568                }
1569            } else {
1570                @StringRes int res;
1571                String firstDenied = getFirstDenied(grantResults, permissions);
1572                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1573                    res = R.string.no_microphone_permission;
1574                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1575                    res = R.string.no_camera_permission;
1576                } else {
1577                    res = R.string.no_storage_permission;
1578                }
1579                Toast.makeText(getActivity(), getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT).show();
1580            }
1581        }
1582        if (writeGranted(grantResults, permissions)) {
1583            if (activity != null && activity.xmppConnectionService != null) {
1584                activity.xmppConnectionService.getBitmapCache().evictAll();
1585                activity.xmppConnectionService.restartFileObserver();
1586            }
1587            refresh();
1588        }
1589    }
1590
1591    public void startDownloadable(Message message) {
1592        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1593            this.mPendingDownloadableMessage = message;
1594            return;
1595        }
1596        Transferable transferable = message.getTransferable();
1597        if (transferable != null) {
1598            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1599                createNewConnection(message);
1600                return;
1601            }
1602            if (!transferable.start()) {
1603                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1604                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1605            }
1606        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1607            createNewConnection(message);
1608        } else {
1609            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1610        }
1611    }
1612
1613    private void createNewConnection(final Message message) {
1614        if (!activity.xmppConnectionService.hasInternetConnection()) {
1615            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1616            return;
1617        }
1618        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1619    }
1620
1621    @SuppressLint("InflateParams")
1622    protected void clearHistoryDialog(final Conversation conversation) {
1623        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1624        builder.setTitle(getString(R.string.clear_conversation_history));
1625        final View dialogView = requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1626        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1627        builder.setView(dialogView);
1628        builder.setNegativeButton(getString(R.string.cancel), null);
1629        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1630            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1631            if (endConversationCheckBox.isChecked()) {
1632                this.activity.xmppConnectionService.archiveConversation(conversation);
1633                this.activity.onConversationArchived(conversation);
1634            } else {
1635                activity.onConversationsListItemUpdated();
1636                refresh();
1637            }
1638        });
1639        builder.create().show();
1640    }
1641
1642    protected void muteConversationDialog(final Conversation conversation) {
1643        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1644        builder.setTitle(R.string.disable_notifications);
1645        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1646        final CharSequence[] labels = new CharSequence[durations.length];
1647        for (int i = 0; i < durations.length; ++i) {
1648            if (durations[i] == -1) {
1649                labels[i] = getString(R.string.until_further_notice);
1650            } else {
1651                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1652            }
1653        }
1654        builder.setItems(labels, (dialog, which) -> {
1655            final long till;
1656            if (durations[which] == -1) {
1657                till = Long.MAX_VALUE;
1658            } else {
1659                till = System.currentTimeMillis() + (durations[which] * 1000L);
1660            }
1661            conversation.setMutedTill(till);
1662            activity.xmppConnectionService.updateConversation(conversation);
1663            activity.onConversationsListItemUpdated();
1664            refresh();
1665            requireActivity().invalidateOptionsMenu();
1666        });
1667        builder.create().show();
1668    }
1669
1670    private boolean hasPermissions(int requestCode, String... permissions) {
1671        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1672            final List<String> missingPermissions = new ArrayList<>();
1673            for (String permission : permissions) {
1674                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1675                    continue;
1676                }
1677                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1678                    missingPermissions.add(permission);
1679                }
1680            }
1681            if (missingPermissions.size() == 0) {
1682                return true;
1683            } else {
1684                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1685                return false;
1686            }
1687        } else {
1688            return true;
1689        }
1690    }
1691
1692    public void unmuteConversation(final Conversation conversation) {
1693        conversation.setMutedTill(0);
1694        this.activity.xmppConnectionService.updateConversation(conversation);
1695        this.activity.onConversationsListItemUpdated();
1696        refresh();
1697        requireActivity().invalidateOptionsMenu();
1698    }
1699
1700
1701    protected void invokeAttachFileIntent(final int attachmentChoice) {
1702        Intent intent = new Intent();
1703        boolean chooser = false;
1704        switch (attachmentChoice) {
1705            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1706                intent.setAction(Intent.ACTION_GET_CONTENT);
1707                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1708                intent.setType("image/*");
1709                chooser = true;
1710                break;
1711            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1712                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1713                break;
1714            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1715                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1716                pendingTakePhotoUri.push(uri);
1717                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1718                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1719                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1720                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1721                break;
1722            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1723                chooser = true;
1724                intent.setType("*/*");
1725                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1726                intent.addCategory(Intent.CATEGORY_OPENABLE);
1727                intent.setAction(Intent.ACTION_GET_CONTENT);
1728                break;
1729            case ATTACHMENT_CHOICE_RECORD_VOICE:
1730                intent = new Intent(getActivity(), RecordingActivity.class);
1731                break;
1732            case ATTACHMENT_CHOICE_LOCATION:
1733                intent = GeoHelper.getFetchIntent(activity);
1734                break;
1735        }
1736        final Context context = getActivity();
1737        if (context == null) {
1738            return;
1739        }
1740        if (intent.resolveActivity(context.getPackageManager()) != null) {
1741            if (chooser) {
1742                startActivityForResult(
1743                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1744                        attachmentChoice);
1745            } else {
1746                startActivityForResult(intent, attachmentChoice);
1747            }
1748        } else {
1749            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
1750        }
1751    }
1752
1753    @Override
1754    public void onResume() {
1755        super.onResume();
1756        binding.messagesView.post(this::fireReadEvent);
1757    }
1758
1759    private void fireReadEvent() {
1760        if (activity != null && this.conversation != null) {
1761            String uuid = getLastVisibleMessageUuid();
1762            if (uuid != null) {
1763                activity.onConversationRead(this.conversation, uuid);
1764            }
1765        }
1766    }
1767
1768    private String getLastVisibleMessageUuid() {
1769        if (binding == null) {
1770            return null;
1771        }
1772        synchronized (this.messageList) {
1773            int pos = binding.messagesView.getLastVisiblePosition();
1774            if (pos >= 0) {
1775                Message message = null;
1776                for (int i = pos; i >= 0; --i) {
1777                    try {
1778                        message = (Message) binding.messagesView.getItemAtPosition(i);
1779                    } catch (IndexOutOfBoundsException e) {
1780                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1781                        continue;
1782                    }
1783                    if (message.getType() != Message.TYPE_STATUS) {
1784                        break;
1785                    }
1786                }
1787                if (message != null) {
1788                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1789                        message = message.next();
1790                    }
1791                    return message.getUuid();
1792                }
1793            }
1794        }
1795        return null;
1796    }
1797
1798    private void openWith(final Message message) {
1799        if (message.isGeoUri()) {
1800            GeoHelper.view(getActivity(), message);
1801        } else {
1802            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1803            ViewUtil.view(activity, file);
1804        }
1805    }
1806
1807    private void showErrorMessage(final Message message) {
1808        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1809        builder.setTitle(R.string.error_message);
1810        final String errorMessage = message.getErrorMessage();
1811        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1812        final String displayError;
1813        if (errorMessageParts.length == 2) {
1814            displayError = errorMessageParts[1];
1815        } else {
1816            displayError = errorMessage;
1817        }
1818        builder.setMessage(displayError);
1819        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1820            activity.copyTextToClipboard(displayError, R.string.error_message);
1821            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1822        });
1823        builder.setPositiveButton(R.string.confirm, null);
1824        builder.create().show();
1825    }
1826
1827
1828    private void deleteFile(final Message message) {
1829        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1830        builder.setNegativeButton(R.string.cancel, null);
1831        builder.setTitle(R.string.delete_file_dialog);
1832        builder.setMessage(R.string.delete_file_dialog_msg);
1833        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1834            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1835                message.setDeleted(true);
1836                activity.xmppConnectionService.evictPreview(message.getUuid());
1837                activity.xmppConnectionService.updateMessage(message, false);
1838                activity.onConversationsListItemUpdated();
1839                refresh();
1840            }
1841        });
1842        builder.create().show();
1843
1844    }
1845
1846    private void resendMessage(final Message message) {
1847        if (message.isFileOrImage()) {
1848            if (!(message.getConversation() instanceof Conversation)) {
1849                return;
1850            }
1851            final Conversation conversation = (Conversation) message.getConversation();
1852            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1853            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1854                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1855                if (!message.hasFileOnRemoteHost()
1856                        && xmppConnection != null
1857                        && conversation.getMode() == Conversational.MODE_SINGLE
1858                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().getSize())) {
1859                    activity.selectPresence(conversation, () -> {
1860                        message.setCounterpart(conversation.getNextCounterpart());
1861                        activity.xmppConnectionService.resendFailedMessages(message);
1862                        new Handler().post(() -> {
1863                            int size = messageList.size();
1864                            this.binding.messagesView.setSelection(size - 1);
1865                        });
1866                    });
1867                    return;
1868                }
1869            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1870                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1871                return;
1872            } else {
1873                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1874                message.setDeleted(true);
1875                activity.xmppConnectionService.updateMessage(message, false);
1876                activity.onConversationsListItemUpdated();
1877                refresh();
1878                return;
1879            }
1880        }
1881        activity.xmppConnectionService.resendFailedMessages(message);
1882        new Handler().post(() -> {
1883            int size = messageList.size();
1884            this.binding.messagesView.setSelection(size - 1);
1885        });
1886    }
1887
1888    private void cancelTransmission(Message message) {
1889        Transferable transferable = message.getTransferable();
1890        if (transferable != null) {
1891            transferable.cancel();
1892        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1893            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1894        }
1895    }
1896
1897    private void retryDecryption(Message message) {
1898        message.setEncryption(Message.ENCRYPTION_PGP);
1899        activity.onConversationsListItemUpdated();
1900        refresh();
1901        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1902    }
1903
1904    public void privateMessageWith(final Jid counterpart) {
1905        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1906            activity.xmppConnectionService.sendChatState(conversation);
1907        }
1908        this.binding.textinput.setText("");
1909        this.conversation.setNextCounterpart(counterpart);
1910        updateChatMsgHint();
1911        updateSendButton();
1912        updateEditablity();
1913    }
1914
1915    private void correctMessage(Message message) {
1916        while (message.mergeable(message.next())) {
1917            message = message.next();
1918        }
1919        this.conversation.setCorrectingMessage(message);
1920        final Editable editable = binding.textinput.getText();
1921        this.conversation.setDraftMessage(editable.toString());
1922        this.binding.textinput.setText("");
1923        this.binding.textinput.append(message.getBody());
1924
1925    }
1926
1927    private void highlightInConference(String nick) {
1928        final Editable editable = this.binding.textinput.getText();
1929        String oldString = editable.toString().trim();
1930        final int pos = this.binding.textinput.getSelectionStart();
1931        if (oldString.isEmpty() || pos == 0) {
1932            editable.insert(0, nick + ": ");
1933        } else {
1934            final char before = editable.charAt(pos - 1);
1935            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1936            if (before == '\n') {
1937                editable.insert(pos, nick + ": ");
1938            } else {
1939                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1940                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1941                        editable.insert(pos - 2, ", " + nick);
1942                        return;
1943                    }
1944                }
1945                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1946                if (Character.isWhitespace(after)) {
1947                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1948                }
1949            }
1950        }
1951    }
1952
1953    @Override
1954    public void startActivityForResult(Intent intent, int requestCode) {
1955        final Activity activity = getActivity();
1956        if (activity instanceof ConversationsActivity) {
1957            ((ConversationsActivity) activity).clearPendingViewIntent();
1958        }
1959        super.startActivityForResult(intent, requestCode);
1960    }
1961
1962    @Override
1963    public void onSaveInstanceState(@NotNull Bundle outState) {
1964        super.onSaveInstanceState(outState);
1965        if (conversation != null) {
1966            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1967            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1968            final Uri uri = pendingTakePhotoUri.peek();
1969            if (uri != null) {
1970                outState.putString(STATE_PHOTO_URI, uri.toString());
1971            }
1972            final ScrollState scrollState = getScrollPosition();
1973            if (scrollState != null) {
1974                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1975            }
1976            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1977            if (attachments.size() > 0) {
1978                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1979            }
1980        }
1981    }
1982
1983    @Override
1984    public void onActivityCreated(Bundle savedInstanceState) {
1985        super.onActivityCreated(savedInstanceState);
1986        if (savedInstanceState == null) {
1987            return;
1988        }
1989        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1990        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1991        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1992        if (uuid != null) {
1993            QuickLoader.set(uuid);
1994            this.pendingConversationsUuid.push(uuid);
1995            if (attachments != null && attachments.size() > 0) {
1996                this.pendingMediaPreviews.push(attachments);
1997            }
1998            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1999            if (takePhotoUri != null) {
2000                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2001            }
2002            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2003        }
2004    }
2005
2006    @Override
2007    public void onStart() {
2008        super.onStart();
2009        if (this.reInitRequiredOnStart && this.conversation != null) {
2010            final Bundle extras = pendingExtras.pop();
2011            reInit(this.conversation, extras != null);
2012            if (extras != null) {
2013                processExtras(extras);
2014            }
2015        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2016            final String uuid = pendingConversationsUuid.pop();
2017            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2018            if (uuid != null) {
2019                findAndReInitByUuidOrArchive(uuid);
2020            }
2021        }
2022    }
2023
2024    @Override
2025    public void onStop() {
2026        super.onStop();
2027        final Activity activity = getActivity();
2028        messageListAdapter.unregisterListenerInAudioPlayer();
2029        if (activity == null || !activity.isChangingConfigurations()) {
2030            hideSoftKeyboard(activity);
2031            messageListAdapter.stopAudioPlayer();
2032        }
2033        if (this.conversation != null) {
2034            final String msg = this.binding.textinput.getText().toString();
2035            storeNextMessage(msg);
2036            updateChatState(this.conversation, msg);
2037            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2038        }
2039        this.reInitRequiredOnStart = true;
2040    }
2041
2042    private void updateChatState(final Conversation conversation, final String msg) {
2043        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2044        Account.State status = conversation.getAccount().getStatus();
2045        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2046            activity.xmppConnectionService.sendChatState(conversation);
2047        }
2048    }
2049
2050    private void saveMessageDraftStopAudioPlayer() {
2051        final Conversation previousConversation = this.conversation;
2052        if (this.activity == null || this.binding == null || previousConversation == null) {
2053            return;
2054        }
2055        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2056        final String msg = this.binding.textinput.getText().toString();
2057        storeNextMessage(msg);
2058        updateChatState(this.conversation, msg);
2059        messageListAdapter.stopAudioPlayer();
2060        mediaPreviewAdapter.clearPreviews();
2061        toggleInputMethod();
2062    }
2063
2064    public void reInit(final Conversation conversation, final Bundle extras) {
2065        QuickLoader.set(conversation.getUuid());
2066        final boolean changedConversation = this.conversation != conversation;
2067        if (changedConversation) {
2068            this.saveMessageDraftStopAudioPlayer();
2069        }
2070        this.clearPending();
2071        if (this.reInit(conversation, extras != null)) {
2072            if (extras != null) {
2073                processExtras(extras);
2074            }
2075            this.reInitRequiredOnStart = false;
2076        } else {
2077            this.reInitRequiredOnStart = true;
2078            pendingExtras.push(extras);
2079        }
2080        resetUnreadMessagesCount();
2081    }
2082
2083    private void reInit(Conversation conversation) {
2084        reInit(conversation, false);
2085    }
2086
2087    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2088        if (conversation == null) {
2089            return false;
2090        }
2091        this.conversation = conversation;
2092        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2093        if (this.activity == null || this.binding == null) {
2094            return false;
2095        }
2096
2097        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2098            activity.onConversationArchived(this.conversation);
2099            return false;
2100        }
2101
2102        stopScrolling();
2103        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2104
2105        if (this.conversation.isRead() && hasExtras) {
2106            Log.d(Config.LOGTAG, "trimming conversation");
2107            this.conversation.trim();
2108        }
2109
2110        setupIme();
2111
2112        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2113
2114        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2115        this.binding.textinput.setKeyboardListener(null);
2116        this.binding.textinput.setText("");
2117        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2118        if (participating) {
2119            this.binding.textinput.append(this.conversation.getNextMessage());
2120        }
2121        this.binding.textinput.setKeyboardListener(this);
2122        messageListAdapter.updatePreferences();
2123        refresh(false);
2124        activity.invalidateOptionsMenu();
2125        this.conversation.messagesLoaded.set(true);
2126        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2127
2128        if (hasExtras || scrolledToBottomAndNoPending) {
2129            resetUnreadMessagesCount();
2130            synchronized (this.messageList) {
2131                Log.d(Config.LOGTAG, "jump to first unread message");
2132                final Message first = conversation.getFirstUnreadMessage();
2133                final int bottom = Math.max(0, this.messageList.size() - 1);
2134                final int pos;
2135                final boolean jumpToBottom;
2136                if (first == null) {
2137                    pos = bottom;
2138                    jumpToBottom = true;
2139                } else {
2140                    int i = getIndexOf(first.getUuid(), this.messageList);
2141                    pos = i < 0 ? bottom : i;
2142                    jumpToBottom = false;
2143                }
2144                setSelection(pos, jumpToBottom);
2145            }
2146        }
2147
2148
2149        this.binding.messagesView.post(this::fireReadEvent);
2150        //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
2151        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2152        return true;
2153    }
2154
2155    private void resetUnreadMessagesCount() {
2156        lastMessageUuid = null;
2157        hideUnreadMessagesCount();
2158    }
2159
2160    private void hideUnreadMessagesCount() {
2161        if (this.binding == null) {
2162            return;
2163        }
2164        this.binding.scrollToBottomButton.setEnabled(false);
2165        this.binding.scrollToBottomButton.hide();
2166        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2167    }
2168
2169    private void setSelection(int pos, boolean jumpToBottom) {
2170        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2171        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2172        this.binding.messagesView.post(this::fireReadEvent);
2173    }
2174
2175
2176    private boolean scrolledToBottom() {
2177        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2178    }
2179
2180    private void processExtras(final Bundle extras) {
2181        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2182        final String text = extras.getString(Intent.EXTRA_TEXT);
2183        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2184        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2185        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2186        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2187        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2188        final List<Uri> uris = extractUris(extras);
2189        if (uris != null && uris.size() > 0) {
2190            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2191                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2192            } else {
2193                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2194                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2195            }
2196            toggleInputMethod();
2197            return;
2198        }
2199        if (nick != null) {
2200            if (pm) {
2201                Jid jid = conversation.getJid();
2202                try {
2203                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2204                    privateMessageWith(next);
2205                } catch (final IllegalArgumentException ignored) {
2206                    //do nothing
2207                }
2208            } else {
2209                final MucOptions mucOptions = conversation.getMucOptions();
2210                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2211                    highlightInConference(nick);
2212                }
2213            }
2214        } else {
2215            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2216                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2217                toggleInputMethod();
2218                return;
2219            } else if (text != null && asQuote) {
2220                quoteText(text);
2221            } else {
2222                appendText(text, doNotAppend);
2223            }
2224        }
2225        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2226            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2227            return;
2228        }
2229        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2230        if (message != null) {
2231            startDownloadable(message);
2232        }
2233    }
2234
2235    private List<Uri> extractUris(final Bundle extras) {
2236        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2237        if (uris != null) {
2238            return uris;
2239        }
2240        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2241        if (uri != null) {
2242            return Collections.singletonList(uri);
2243        } else {
2244            return null;
2245        }
2246    }
2247
2248    private List<Uri> cleanUris(final List<Uri> uris) {
2249        Iterator<Uri> iterator = uris.iterator();
2250        while (iterator.hasNext()) {
2251            final Uri uri = iterator.next();
2252            if (FileBackend.weOwnFile(getActivity(), uri)) {
2253                iterator.remove();
2254                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2255            }
2256        }
2257        return uris;
2258    }
2259
2260    private boolean showBlockSubmenu(View view) {
2261        final Jid jid = conversation.getJid();
2262        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2263        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2264        popupMenu.inflate(R.menu.block);
2265        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2266        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2267        popupMenu.setOnMenuItemClickListener(menuItem -> {
2268            Blockable blockable;
2269            switch (menuItem.getItemId()) {
2270                case R.id.reject:
2271                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2272                    updateSnackBar(conversation);
2273                    return true;
2274                case R.id.block_domain:
2275                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2276                    break;
2277                default:
2278                    blockable = conversation;
2279            }
2280            BlockContactDialog.show(activity, blockable);
2281            return true;
2282        });
2283        popupMenu.show();
2284        return true;
2285    }
2286
2287    private void updateSnackBar(final Conversation conversation) {
2288        final Account account = conversation.getAccount();
2289        final XmppConnection connection = account.getXmppConnection();
2290        final int mode = conversation.getMode();
2291        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2292        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2293            return;
2294        }
2295        if (account.getStatus() == Account.State.DISABLED) {
2296            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2297        } else if (conversation.isBlocked()) {
2298            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2299        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2300            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2301        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2302            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2303        } else if (mode == Conversation.MODE_MULTI
2304                && !conversation.getMucOptions().online()
2305                && account.getStatus() == Account.State.ONLINE) {
2306            switch (conversation.getMucOptions().getError()) {
2307                case NICK_IN_USE:
2308                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2309                    break;
2310                case NO_RESPONSE:
2311                    showSnackbar(R.string.joining_conference, 0, null);
2312                    break;
2313                case SERVER_NOT_FOUND:
2314                    if (conversation.receivedMessagesCount() > 0) {
2315                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2316                    } else {
2317                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2318                    }
2319                    break;
2320                case REMOTE_SERVER_TIMEOUT:
2321                    if (conversation.receivedMessagesCount() > 0) {
2322                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2323                    } else {
2324                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2325                    }
2326                    break;
2327                case PASSWORD_REQUIRED:
2328                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2329                    break;
2330                case BANNED:
2331                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2332                    break;
2333                case MEMBERS_ONLY:
2334                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2335                    break;
2336                case RESOURCE_CONSTRAINT:
2337                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2338                    break;
2339                case KICKED:
2340                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2341                    break;
2342                case UNKNOWN:
2343                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2344                    break;
2345                case INVALID_NICK:
2346                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2347                case SHUTDOWN:
2348                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2349                    break;
2350                case DESTROYED:
2351                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2352                    break;
2353                case NON_ANONYMOUS:
2354                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2355                    break;
2356                default:
2357                    hideSnackbar();
2358                    break;
2359            }
2360        } else if (account.hasPendingPgpIntent(conversation)) {
2361            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2362        } else if (connection != null
2363                && connection.getFeatures().blocking()
2364                && conversation.countMessages() != 0
2365                && !conversation.isBlocked()
2366                && conversation.isWithStranger()) {
2367            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2368        } else {
2369            hideSnackbar();
2370        }
2371    }
2372
2373    @Override
2374    public void refresh() {
2375        if (this.binding == null) {
2376            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2377            return;
2378        }
2379        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2380            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2381                activity.onConversationArchived(this.conversation);
2382                return;
2383            }
2384        }
2385        this.refresh(true);
2386    }
2387
2388    private void refresh(boolean notifyConversationRead) {
2389        synchronized (this.messageList) {
2390            if (this.conversation != null) {
2391                conversation.populateWithMessages(this.messageList);
2392                updateSnackBar(conversation);
2393                updateStatusMessages();
2394                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2395                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2396                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2397                }
2398                this.messageListAdapter.notifyDataSetChanged();
2399                updateChatMsgHint();
2400                if (notifyConversationRead && activity != null) {
2401                    binding.messagesView.post(this::fireReadEvent);
2402                }
2403                updateSendButton();
2404                updateEditablity();
2405            }
2406        }
2407    }
2408
2409    protected void messageSent() {
2410        mSendingPgpMessage.set(false);
2411        this.binding.textinput.setText("");
2412        if (conversation.setCorrectingMessage(null)) {
2413            this.binding.textinput.append(conversation.getDraftMessage());
2414            conversation.setDraftMessage(null);
2415        }
2416        storeNextMessage();
2417        updateChatMsgHint();
2418        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2419        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2420        if (prefScrollToBottom || scrolledToBottom()) {
2421            new Handler().post(() -> {
2422                int size = messageList.size();
2423                this.binding.messagesView.setSelection(size - 1);
2424            });
2425        }
2426    }
2427
2428    private boolean storeNextMessage() {
2429        return storeNextMessage(this.binding.textinput.getText().toString());
2430    }
2431
2432    private boolean storeNextMessage(String msg) {
2433        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2434        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2435            this.activity.xmppConnectionService.updateConversation(this.conversation);
2436            return true;
2437        }
2438        return false;
2439    }
2440
2441    public void doneSendingPgpMessage() {
2442        mSendingPgpMessage.set(false);
2443    }
2444
2445    public long getMaxHttpUploadSize(Conversation conversation) {
2446        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2447        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2448    }
2449
2450    private void updateEditablity() {
2451        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2452        this.binding.textinput.setFocusable(canWrite);
2453        this.binding.textinput.setFocusableInTouchMode(canWrite);
2454        this.binding.textSendButton.setEnabled(canWrite);
2455        this.binding.textinput.setCursorVisible(canWrite);
2456        this.binding.textinput.setEnabled(canWrite);
2457    }
2458
2459    public void updateSendButton() {
2460        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2461        final Conversation c = this.conversation;
2462        final Presence.Status status;
2463        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2464        final SendButtonAction action;
2465        if (hasAttachments) {
2466            action = SendButtonAction.TEXT;
2467        } else {
2468            action = SendButtonTool.getAction(getActivity(), c, text);
2469        }
2470        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2471            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2472                status = Presence.Status.OFFLINE;
2473            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2474                status = c.getContact().getShownStatus();
2475            } else {
2476                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2477            }
2478        } else {
2479            status = Presence.Status.OFFLINE;
2480        }
2481        this.binding.textSendButton.setTag(action);
2482        final Activity activity = getActivity();
2483        if (activity != null) {
2484            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2485        }
2486    }
2487
2488    protected void updateStatusMessages() {
2489        DateSeparator.addAll(this.messageList);
2490        if (showLoadMoreMessages(conversation)) {
2491            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2492        }
2493        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2494            ChatState state = conversation.getIncomingChatState();
2495            if (state == ChatState.COMPOSING) {
2496                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2497            } else if (state == ChatState.PAUSED) {
2498                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2499            } else {
2500                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2501                    final Message message = this.messageList.get(i);
2502                    if (message.getType() != Message.TYPE_STATUS) {
2503                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2504                            return;
2505                        } else {
2506                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2507                                this.messageList.add(i + 1,
2508                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2509                                return;
2510                            }
2511                        }
2512                    }
2513                }
2514            }
2515        } else {
2516            final MucOptions mucOptions = conversation.getMucOptions();
2517            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2518            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2519            ChatState state = ChatState.COMPOSING;
2520            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2521            if (users.size() == 0) {
2522                state = ChatState.PAUSED;
2523                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2524            }
2525            if (mucOptions.isPrivateAndNonAnonymous()) {
2526                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2527                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2528                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2529                    for (ReadByMarker marker : markersForMessage) {
2530                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2531                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2532                            MucOptions.User user = mucOptions.findUser(marker);
2533                            if (user != null && !users.contains(user)) {
2534                                shownMarkers.add(user);
2535                            }
2536                        }
2537                    }
2538                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2539                    final Message statusMessage;
2540                    final int size = shownMarkers.size();
2541                    if (size > 1) {
2542                        final String body;
2543                        if (size <= 4) {
2544                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2545                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2546                            body = getString(R.string.everyone_has_read_up_to_this_point);
2547                        } else {
2548                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2549                        }
2550                        statusMessage = Message.createStatusMessage(conversation, body);
2551                        statusMessage.setCounterparts(shownMarkers);
2552                    } else if (size == 1) {
2553                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2554                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2555                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2556                    } else {
2557                        statusMessage = null;
2558                    }
2559                    if (statusMessage != null) {
2560                        this.messageList.add(i + 1, statusMessage);
2561                    }
2562                    addedMarkers.add(markerForSender);
2563                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2564                        break;
2565                    }
2566                }
2567            }
2568            if (users.size() > 0) {
2569                Message statusMessage;
2570                if (users.size() == 1) {
2571                    MucOptions.User user = users.get(0);
2572                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2573                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2574                    statusMessage.setTrueCounterpart(user.getRealJid());
2575                    statusMessage.setCounterpart(user.getFullJid());
2576                } else {
2577                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2578                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2579                    statusMessage.setCounterparts(users);
2580                }
2581                this.messageList.add(statusMessage);
2582            }
2583
2584        }
2585    }
2586
2587    private void stopScrolling() {
2588        long now = SystemClock.uptimeMillis();
2589        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2590        binding.messagesView.dispatchTouchEvent(cancel);
2591    }
2592
2593    private boolean showLoadMoreMessages(final Conversation c) {
2594        if (activity == null || activity.xmppConnectionService == null) {
2595            return false;
2596        }
2597        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2598        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2599        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2600    }
2601
2602    private boolean hasMamSupport(final Conversation c) {
2603        if (c.getMode() == Conversation.MODE_SINGLE) {
2604            final XmppConnection connection = c.getAccount().getXmppConnection();
2605            return connection != null && connection.getFeatures().mam();
2606        } else {
2607            return c.getMucOptions().mamSupport();
2608        }
2609    }
2610
2611    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2612        showSnackbar(message, action, clickListener, null);
2613    }
2614
2615    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2616        this.binding.snackbar.setVisibility(View.VISIBLE);
2617        this.binding.snackbar.setOnClickListener(null);
2618        this.binding.snackbarMessage.setText(message);
2619        this.binding.snackbarMessage.setOnClickListener(null);
2620        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2621        if (action != 0) {
2622            this.binding.snackbarAction.setText(action);
2623        }
2624        this.binding.snackbarAction.setOnClickListener(clickListener);
2625        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2626    }
2627
2628    protected void hideSnackbar() {
2629        this.binding.snackbar.setVisibility(View.GONE);
2630    }
2631
2632    protected void sendMessage(Message message) {
2633        activity.xmppConnectionService.sendMessage(message);
2634        messageSent();
2635    }
2636
2637    protected void sendPgpMessage(final Message message) {
2638        final XmppConnectionService xmppService = activity.xmppConnectionService;
2639        final Contact contact = message.getConversation().getContact();
2640        if (!activity.hasPgp()) {
2641            activity.showInstallPgpDialog();
2642            return;
2643        }
2644        if (conversation.getAccount().getPgpSignature() == null) {
2645            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2646            return;
2647        }
2648        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2649            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2650        }
2651        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2652            if (contact.getPgpKeyId() != 0) {
2653                xmppService.getPgpEngine().hasKey(contact,
2654                        new UiCallback<Contact>() {
2655
2656                            @Override
2657                            public void userInputRequired(PendingIntent pi, Contact contact) {
2658                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2659                            }
2660
2661                            @Override
2662                            public void success(Contact contact) {
2663                                encryptTextMessage(message);
2664                            }
2665
2666                            @Override
2667                            public void error(int error, Contact contact) {
2668                                activity.runOnUiThread(() -> Toast.makeText(activity,
2669                                        R.string.unable_to_connect_to_keychain,
2670                                        Toast.LENGTH_SHORT
2671                                ).show());
2672                                mSendingPgpMessage.set(false);
2673                            }
2674                        });
2675
2676            } else {
2677                showNoPGPKeyDialog(false, (dialog, which) -> {
2678                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2679                    xmppService.updateConversation(conversation);
2680                    message.setEncryption(Message.ENCRYPTION_NONE);
2681                    xmppService.sendMessage(message);
2682                    messageSent();
2683                });
2684            }
2685        } else {
2686            if (conversation.getMucOptions().pgpKeysInUse()) {
2687                if (!conversation.getMucOptions().everybodyHasKeys()) {
2688                    Toast warning = Toast
2689                            .makeText(getActivity(),
2690                                    R.string.missing_public_keys,
2691                                    Toast.LENGTH_LONG);
2692                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2693                    warning.show();
2694                }
2695                encryptTextMessage(message);
2696            } else {
2697                showNoPGPKeyDialog(true, (dialog, which) -> {
2698                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2699                    message.setEncryption(Message.ENCRYPTION_NONE);
2700                    xmppService.updateConversation(conversation);
2701                    xmppService.sendMessage(message);
2702                    messageSent();
2703                });
2704            }
2705        }
2706    }
2707
2708    public void encryptTextMessage(Message message) {
2709        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2710                new UiCallback<Message>() {
2711
2712                    @Override
2713                    public void userInputRequired(PendingIntent pi, Message message) {
2714                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2715                    }
2716
2717                    @Override
2718                    public void success(Message message) {
2719                        //TODO the following two call can be made before the callback
2720                        getActivity().runOnUiThread(() -> messageSent());
2721                    }
2722
2723                    @Override
2724                    public void error(final int error, Message message) {
2725                        getActivity().runOnUiThread(() -> {
2726                            doneSendingPgpMessage();
2727                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2728                        });
2729
2730                    }
2731                });
2732    }
2733
2734    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2735        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2736        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2737        if (plural) {
2738            builder.setTitle(getString(R.string.no_pgp_keys));
2739            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2740        } else {
2741            builder.setTitle(getString(R.string.no_pgp_key));
2742            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2743        }
2744        builder.setNegativeButton(getString(R.string.cancel), null);
2745        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2746        builder.create().show();
2747    }
2748
2749    public void appendText(String text, final boolean doNotAppend) {
2750        if (text == null) {
2751            return;
2752        }
2753        final Editable editable = this.binding.textinput.getText();
2754        String previous = editable == null ? "" : editable.toString();
2755        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2756            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2757            return;
2758        }
2759        if (UIHelper.isLastLineQuote(previous)) {
2760            text = '\n' + text;
2761        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2762            text = " " + text;
2763        }
2764        this.binding.textinput.append(text);
2765    }
2766
2767    @Override
2768    public boolean onEnterPressed(final boolean isCtrlPressed) {
2769        if (isCtrlPressed || enterIsSend()) {
2770            sendMessage();
2771            return true;
2772        }
2773        return false;
2774    }
2775
2776    private boolean enterIsSend() {
2777        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2778        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2779    }
2780
2781    public boolean onArrowUpCtrlPressed() {
2782        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2783        if (lastEditableMessage != null) {
2784            correctMessage(lastEditableMessage);
2785            return true;
2786        } else {
2787            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2788            return false;
2789        }
2790    }
2791
2792    @Override
2793    public void onTypingStarted() {
2794        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2795        if (service == null) {
2796            return;
2797        }
2798        final Account.State status = conversation.getAccount().getStatus();
2799        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2800            service.sendChatState(conversation);
2801        }
2802        runOnUiThread(this::updateSendButton);
2803    }
2804
2805    @Override
2806    public void onTypingStopped() {
2807        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2808        if (service == null) {
2809            return;
2810        }
2811        final Account.State status = conversation.getAccount().getStatus();
2812        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2813            service.sendChatState(conversation);
2814        }
2815    }
2816
2817    @Override
2818    public void onTextDeleted() {
2819        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2820        if (service == null) {
2821            return;
2822        }
2823        final Account.State status = conversation.getAccount().getStatus();
2824        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2825            service.sendChatState(conversation);
2826        }
2827        if (storeNextMessage()) {
2828            runOnUiThread(() -> {
2829                if (activity == null) {
2830                    return;
2831                }
2832                activity.onConversationsListItemUpdated();
2833            });
2834        }
2835        runOnUiThread(this::updateSendButton);
2836    }
2837
2838    @Override
2839    public void onTextChanged() {
2840        if (conversation != null && conversation.getCorrectingMessage() != null) {
2841            runOnUiThread(this::updateSendButton);
2842        }
2843    }
2844
2845    @Override
2846    public boolean onTabPressed(boolean repeated) {
2847        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2848            return false;
2849        }
2850        if (repeated) {
2851            completionIndex++;
2852        } else {
2853            lastCompletionLength = 0;
2854            completionIndex = 0;
2855            final String content = this.binding.textinput.getText().toString();
2856            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2857            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2858            firstWord = start == 0;
2859            incomplete = content.substring(start, lastCompletionCursor);
2860        }
2861        List<String> completions = new ArrayList<>();
2862        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2863            String name = user.getName();
2864            if (name != null && name.startsWith(incomplete)) {
2865                completions.add(name + (firstWord ? ": " : " "));
2866            }
2867        }
2868        Collections.sort(completions);
2869        if (completions.size() > completionIndex) {
2870            String completion = completions.get(completionIndex).substring(incomplete.length());
2871            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2872            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2873            lastCompletionLength = completion.length();
2874        } else {
2875            completionIndex = -1;
2876            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2877            lastCompletionLength = 0;
2878        }
2879        return true;
2880    }
2881
2882    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2883        try {
2884            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2885        } catch (final SendIntentException ignored) {
2886        }
2887    }
2888
2889    @Override
2890    public void onBackendConnected() {
2891        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2892        String uuid = pendingConversationsUuid.pop();
2893        if (uuid != null) {
2894            if (!findAndReInitByUuidOrArchive(uuid)) {
2895                return;
2896            }
2897        } else {
2898            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2899                clearPending();
2900                activity.onConversationArchived(conversation);
2901                return;
2902            }
2903        }
2904        ActivityResult activityResult = postponedActivityResult.pop();
2905        if (activityResult != null) {
2906            handleActivityResult(activityResult);
2907        }
2908        clearPending();
2909    }
2910
2911    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2912        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2913        if (conversation == null) {
2914            clearPending();
2915            activity.onConversationArchived(null);
2916            return false;
2917        }
2918        reInit(conversation);
2919        ScrollState scrollState = pendingScrollState.pop();
2920        String lastMessageUuid = pendingLastMessageUuid.pop();
2921        List<Attachment> attachments = pendingMediaPreviews.pop();
2922        if (scrollState != null) {
2923            setScrollPosition(scrollState, lastMessageUuid);
2924        }
2925        if (attachments != null && attachments.size() > 0) {
2926            Log.d(Config.LOGTAG, "had attachments on restore");
2927            mediaPreviewAdapter.addMediaPreviews(attachments);
2928            toggleInputMethod();
2929        }
2930        return true;
2931    }
2932
2933    private void clearPending() {
2934        if (postponedActivityResult.clear()) {
2935            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2936            if (pendingTakePhotoUri.clear()) {
2937                Log.e(Config.LOGTAG, "cleared pending photo uri");
2938            }
2939        }
2940        if (pendingScrollState.clear()) {
2941            Log.e(Config.LOGTAG, "cleared scroll state");
2942        }
2943        if (pendingConversationsUuid.clear()) {
2944            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2945        }
2946        if (pendingMediaPreviews.clear()) {
2947            Log.e(Config.LOGTAG, "cleared pending media previews");
2948        }
2949    }
2950
2951    public Conversation getConversation() {
2952        return conversation;
2953    }
2954
2955    @Override
2956    public void onContactPictureLongClicked(View v, final Message message) {
2957        final String fingerprint;
2958        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2959            fingerprint = "pgp";
2960        } else {
2961            fingerprint = message.getFingerprint();
2962        }
2963        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2964        final Contact contact = message.getContact();
2965        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2966            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2967                final Jid cp = message.getCounterpart();
2968                if (cp == null || cp.isBareJid()) {
2969                    return;
2970                }
2971                final Jid tcp = message.getTrueCounterpart();
2972                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2973                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2974                popupMenu.inflate(R.menu.muc_details_context);
2975                final Menu menu = popupMenu.getMenu();
2976                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2977                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2978            } else {
2979                popupMenu.inflate(R.menu.one_on_one_context);
2980                popupMenu.setOnMenuItemClickListener(item -> {
2981                    switch (item.getItemId()) {
2982                        case R.id.action_contact_details:
2983                            activity.switchToContactDetails(message.getContact(), fingerprint);
2984                            break;
2985                        case R.id.action_show_qr_code:
2986                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2987                            break;
2988                    }
2989                    return true;
2990                });
2991            }
2992        } else {
2993            popupMenu.inflate(R.menu.account_context);
2994            final Menu menu = popupMenu.getMenu();
2995            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2996            popupMenu.setOnMenuItemClickListener(item -> {
2997                final XmppActivity activity = this.activity;
2998                if (activity == null) {
2999                    Log.e(Config.LOGTAG,"Unable to perform action. no context provided");
3000                    return true;
3001                }
3002                switch (item.getItemId()) {
3003                    case R.id.action_show_qr_code:
3004                        activity.showQrCode(conversation.getAccount().getShareableUri());
3005                        break;
3006                    case R.id.action_account_details:
3007                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3008                        break;
3009                    case R.id.action_manage_accounts:
3010                        AccountUtils.launchManageAccounts(activity);
3011                        break;
3012                }
3013                return true;
3014            });
3015        }
3016        popupMenu.show();
3017    }
3018
3019    @Override
3020    public void onContactPictureClicked(Message message) {
3021        String fingerprint;
3022        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3023            fingerprint = "pgp";
3024        } else {
3025            fingerprint = message.getFingerprint();
3026        }
3027        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3028        if (received) {
3029            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3030                Jid tcp = message.getTrueCounterpart();
3031                Jid user = message.getCounterpart();
3032                if (user != null && !user.isBareJid()) {
3033                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3034                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3035                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3036                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3037                        }
3038                        highlightInConference(user.getResource());
3039                    } else {
3040                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3041                    }
3042                }
3043                return;
3044            } else {
3045                if (!message.getContact().isSelf()) {
3046                    activity.switchToContactDetails(message.getContact(), fingerprint);
3047                    return;
3048                }
3049            }
3050        }
3051        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3052    }
3053}