ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import androidx.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import androidx.annotation.IdRes;
  15import androidx.annotation.NonNull;
  16import androidx.annotation.StringRes;
  17import androidx.appcompat.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import androidx.core.view.inputmethod.InputConnectionCompat;
  28import androidx.core.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.LayoutInflater;
  36import android.view.Menu;
  37import android.view.MenuInflater;
  38import android.view.MenuItem;
  39import android.view.MotionEvent;
  40import android.view.View;
  41import android.view.View.OnClickListener;
  42import android.view.ViewGroup;
  43import android.view.inputmethod.EditorInfo;
  44import android.view.inputmethod.InputMethodManager;
  45import android.widget.AbsListView;
  46import android.widget.AbsListView.OnScrollListener;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.CheckBox;
  50import android.widget.ListView;
  51import android.widget.PopupMenu;
  52import android.widget.TextView.OnEditorActionListener;
  53import android.widget.Toast;
  54
  55import com.google.common.base.Optional;
  56
  57import java.util.ArrayList;
  58import java.util.Arrays;
  59import java.util.Collection;
  60import java.util.Collections;
  61import java.util.HashSet;
  62import java.util.Iterator;
  63import java.util.List;
  64import java.util.Set;
  65import java.util.UUID;
  66import java.util.concurrent.atomic.AtomicBoolean;
  67
  68import eu.siacs.conversations.Config;
  69import eu.siacs.conversations.R;
  70import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  71import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  72import eu.siacs.conversations.databinding.FragmentConversationBinding;
  73import eu.siacs.conversations.entities.Account;
  74import eu.siacs.conversations.entities.Blockable;
  75import eu.siacs.conversations.entities.Contact;
  76import eu.siacs.conversations.entities.Conversation;
  77import eu.siacs.conversations.entities.Conversational;
  78import eu.siacs.conversations.entities.DownloadableFile;
  79import eu.siacs.conversations.entities.Message;
  80import eu.siacs.conversations.entities.MucOptions;
  81import eu.siacs.conversations.entities.MucOptions.User;
  82import eu.siacs.conversations.entities.Presence;
  83import eu.siacs.conversations.entities.ReadByMarker;
  84import eu.siacs.conversations.entities.Transferable;
  85import eu.siacs.conversations.entities.TransferablePlaceholder;
  86import eu.siacs.conversations.http.HttpDownloadConnection;
  87import eu.siacs.conversations.persistance.FileBackend;
  88import eu.siacs.conversations.services.MessageArchiveService;
  89import eu.siacs.conversations.services.QuickConversationsService;
  90import eu.siacs.conversations.services.XmppConnectionService;
  91import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  92import eu.siacs.conversations.ui.adapter.MessageAdapter;
  93import eu.siacs.conversations.ui.util.ActivityResult;
  94import eu.siacs.conversations.ui.util.Attachment;
  95import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  96import eu.siacs.conversations.ui.util.DateSeparator;
  97import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  98import eu.siacs.conversations.ui.util.ListViewUtils;
  99import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 100import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 101import eu.siacs.conversations.ui.util.PendingItem;
 102import eu.siacs.conversations.ui.util.PresenceSelector;
 103import eu.siacs.conversations.ui.util.ScrollState;
 104import eu.siacs.conversations.ui.util.SendButtonAction;
 105import eu.siacs.conversations.ui.util.SendButtonTool;
 106import eu.siacs.conversations.ui.util.ShareUtil;
 107import eu.siacs.conversations.ui.util.ViewUtil;
 108import eu.siacs.conversations.ui.widget.EditMessage;
 109import eu.siacs.conversations.utils.AccountUtils;
 110import eu.siacs.conversations.utils.Compatibility;
 111import eu.siacs.conversations.utils.GeoHelper;
 112import eu.siacs.conversations.utils.MessageUtils;
 113import eu.siacs.conversations.utils.NickValidityChecker;
 114import eu.siacs.conversations.utils.Patterns;
 115import eu.siacs.conversations.utils.QuickLoader;
 116import eu.siacs.conversations.utils.StylingHelper;
 117import eu.siacs.conversations.utils.TimeFrameUtils;
 118import eu.siacs.conversations.utils.UIHelper;
 119import eu.siacs.conversations.xml.Namespace;
 120import eu.siacs.conversations.xmpp.XmppConnection;
 121import eu.siacs.conversations.xmpp.chatstate.ChatState;
 122import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 123import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 124import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 125import eu.siacs.conversations.xmpp.jingle.Media;
 126import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 127import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 128import eu.siacs.conversations.xmpp.Jid;
 129
 130import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 131import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 132import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 133import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 134import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 135import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 136
 137
 138public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 139
 140
 141    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 142    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 143    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 144    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 145    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 146    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 147    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 148    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 149    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 150    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 151    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 152    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 153    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 154    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 155    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 156    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 157    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 158
 159    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 160    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 161    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 162    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 163    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 164    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 165
 166    private final List<Message> messageList = new ArrayList<>();
 167    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 168    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 169    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 170    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 171    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 172    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 173    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 174    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 175    public Uri mPendingEditorContent = null;
 176    protected MessageAdapter messageListAdapter;
 177    private MediaPreviewAdapter mediaPreviewAdapter;
 178    private String lastMessageUuid = null;
 179    private Conversation conversation;
 180    private FragmentConversationBinding binding;
 181    private Toast messageLoaderToast;
 182    private ConversationsActivity activity;
 183    private boolean reInitRequiredOnStart = true;
 184    private final OnClickListener clickToMuc = new OnClickListener() {
 185
 186        @Override
 187        public void onClick(View v) {
 188            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 189            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 190            intent.putExtra("uuid", conversation.getUuid());
 191            startActivity(intent);
 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(Activity activity) {
 471        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 472        if (fragment instanceof ConversationFragment) {
 473            return (ConversationFragment) fragment;
 474        }
 475        fragment = activity.getFragmentManager().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(Activity activity) {
 483        ConversationFragment fragment = findConversationFragment(activity);
 484        if (fragment != null) {
 485            fragment.messageListAdapter.startStopPending();
 486        }
 487    }
 488
 489    public static void downloadFile(Activity activity, Message message) {
 490        ConversationFragment fragment = findConversationFragment(activity);
 491        if (fragment != null) {
 492            fragment.startDownloadable(message);
 493        }
 494    }
 495
 496    public static void registerPendingMessage(Activity activity, Message message) {
 497        ConversationFragment fragment = findConversationFragment(activity);
 498        if (fragment != null) {
 499            fragment.pendingMessage.push(message);
 500        }
 501    }
 502
 503    public static void openPendingMessage(Activity activity) {
 504        ConversationFragment fragment = findConversationFragment(activity);
 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(Activity activity) {
 514        return getConversation(activity, R.id.secondary_fragment);
 515    }
 516
 517    private static Conversation getConversation(Activity activity, @IdRes int res) {
 518        final Fragment fragment = activity.getFragmentManager().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(Activity activity) {
 527        FragmentManager fragmentManager = activity.getFragmentManager();
 528        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 529        if (fragment instanceof ConversationFragment) {
 530            return (ConversationFragment) fragment;
 531        } else {
 532            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 533            return fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 534        }
 535    }
 536
 537    public static Conversation getConversationReliable(Activity activity) {
 538        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 539        if (conversation != null) {
 540            return conversation;
 541        }
 542        return getConversation(activity, R.id.main_fragment);
 543    }
 544
 545    private static boolean scrolledToBottom(AbsListView listView) {
 546        final int count = listView.getCount();
 547        if (count == 0) {
 548            return true;
 549        } else if (listView.getLastVisiblePosition() == count - 1) {
 550            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 551            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 552        } else {
 553            return false;
 554        }
 555    }
 556
 557    private void toggleScrollDownButton() {
 558        toggleScrollDownButton(binding.messagesView);
 559    }
 560
 561    private void toggleScrollDownButton(AbsListView listView) {
 562        if (conversation == null) {
 563            return;
 564        }
 565        if (scrolledToBottom(listView)) {
 566            lastMessageUuid = null;
 567            hideUnreadMessagesCount();
 568        } else {
 569            binding.scrollToBottomButton.setEnabled(true);
 570            binding.scrollToBottomButton.show();
 571            if (lastMessageUuid == null) {
 572                lastMessageUuid = conversation.getLatestMessage().getUuid();
 573            }
 574            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 575                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 576            }
 577        }
 578    }
 579
 580    private int getIndexOf(String uuid, List<Message> messages) {
 581        if (uuid == null) {
 582            return messages.size() - 1;
 583        }
 584        for (int i = 0; i < messages.size(); ++i) {
 585            if (uuid.equals(messages.get(i).getUuid())) {
 586                return i;
 587            } else {
 588                Message next = messages.get(i);
 589                while (next != null && next.wasMergedIntoPrevious()) {
 590                    if (uuid.equals(next.getUuid())) {
 591                        return i;
 592                    }
 593                    next = next.next();
 594                }
 595
 596            }
 597        }
 598        return -1;
 599    }
 600
 601    private ScrollState getScrollPosition() {
 602        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 603        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 604            return null;
 605        } else {
 606            final int pos = listView.getFirstVisiblePosition();
 607            final View view = listView.getChildAt(0);
 608            if (view == null) {
 609                return null;
 610            } else {
 611                return new ScrollState(pos, view.getTop());
 612            }
 613        }
 614    }
 615
 616    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 617        if (scrollPosition != null) {
 618
 619            this.lastMessageUuid = lastMessageUuid;
 620            if (lastMessageUuid != null) {
 621                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 622            }
 623            //TODO maybe this needs a 'post'
 624            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 625            toggleScrollDownButton();
 626        }
 627    }
 628
 629    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 630        if (conversation == null) {
 631            return;
 632        }
 633        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 634
 635            @Override
 636            public void success(Message message) {
 637
 638            }
 639
 640            @Override
 641            public void error(int errorCode, Message object) {
 642                //TODO show possible pgp error
 643            }
 644
 645            @Override
 646            public void userInputRequired(PendingIntent pi, Message object) {
 647
 648            }
 649        });
 650    }
 651
 652    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 653        if (conversation == null) {
 654            return;
 655        }
 656        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 657        prepareFileToast.show();
 658        activity.delegateUriPermissionsToService(uri);
 659        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 660            @Override
 661            public void inform(final String text) {
 662                hidePrepareFileToast(prepareFileToast);
 663                runOnUiThread(() -> activity.replaceToast(text));
 664            }
 665
 666            @Override
 667            public void success(Message message) {
 668                runOnUiThread(() -> activity.hideToast());
 669                hidePrepareFileToast(prepareFileToast);
 670            }
 671
 672            @Override
 673            public void error(final int errorCode, Message message) {
 674                hidePrepareFileToast(prepareFileToast);
 675                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 676
 677            }
 678
 679            @Override
 680            public void userInputRequired(PendingIntent pi, Message message) {
 681                hidePrepareFileToast(prepareFileToast);
 682            }
 683        });
 684    }
 685
 686    public void attachEditorContentToConversation(Uri uri) {
 687        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 688        toggleInputMethod();
 689    }
 690
 691    private void attachImageToConversation(Conversation conversation, Uri uri) {
 692        if (conversation == null) {
 693            return;
 694        }
 695        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 696        prepareFileToast.show();
 697        activity.delegateUriPermissionsToService(uri);
 698        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 699                new UiCallback<Message>() {
 700
 701                    @Override
 702                    public void userInputRequired(PendingIntent pi, Message object) {
 703                        hidePrepareFileToast(prepareFileToast);
 704                    }
 705
 706                    @Override
 707                    public void success(Message message) {
 708                        hidePrepareFileToast(prepareFileToast);
 709                    }
 710
 711                    @Override
 712                    public void error(final int error, Message message) {
 713                        hidePrepareFileToast(prepareFileToast);
 714                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 715                    }
 716                });
 717    }
 718
 719    private void hidePrepareFileToast(final Toast prepareFileToast) {
 720        if (prepareFileToast != null && activity != null) {
 721            activity.runOnUiThread(prepareFileToast::cancel);
 722        }
 723    }
 724
 725    private void sendMessage() {
 726        if (mediaPreviewAdapter.hasAttachments()) {
 727            commitAttachments();
 728            return;
 729        }
 730        final Editable text = this.binding.textinput.getText();
 731        final String body = text == null ? "" : text.toString();
 732        final Conversation conversation = this.conversation;
 733        if (body.length() == 0 || conversation == null) {
 734            return;
 735        }
 736        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 737            return;
 738        }
 739        final Message message;
 740        if (conversation.getCorrectingMessage() == null) {
 741            message = new Message(conversation, body, conversation.getNextEncryption());
 742            Message.configurePrivateMessage(message);
 743        } else {
 744            message = conversation.getCorrectingMessage();
 745            message.setBody(body);
 746            message.putEdited(message.getUuid(), message.getServerMsgId());
 747            message.setServerMsgId(null);
 748            message.setUuid(UUID.randomUUID().toString());
 749        }
 750        switch (conversation.getNextEncryption()) {
 751            case Message.ENCRYPTION_PGP:
 752                sendPgpMessage(message);
 753                break;
 754            default:
 755                sendMessage(message);
 756        }
 757    }
 758
 759    protected boolean trustKeysIfNeeded(int requestCode) {
 760        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 761        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 762        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 763        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 764        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 765        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 766        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 767        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 768        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 769            axolotlService.createSessionsIfNeeded(conversation);
 770            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 771            String[] contacts = new String[targets.size()];
 772            for (int i = 0; i < contacts.length; ++i) {
 773                contacts[i] = targets.get(i).toString();
 774            }
 775            intent.putExtra("contacts", contacts);
 776            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toEscapedString());
 777            intent.putExtra("conversation", conversation.getUuid());
 778            startActivityForResult(intent, requestCode);
 779            return true;
 780        } else {
 781            return false;
 782        }
 783    }
 784
 785    public void updateChatMsgHint() {
 786        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 787        if (conversation.getCorrectingMessage() != null) {
 788            this.binding.textInputHint.setVisibility(View.GONE);
 789            this.binding.textinput.setHint(R.string.send_corrected_message);
 790        } else if (multi && conversation.getNextCounterpart() != null) {
 791            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 792            this.binding.textInputHint.setVisibility(View.VISIBLE);
 793            this.binding.textInputHint.setText(getString(
 794                    R.string.send_private_message_to,
 795                    conversation.getNextCounterpart().getResource()));
 796        } else if (multi && !conversation.getMucOptions().participating()) {
 797            this.binding.textInputHint.setVisibility(View.GONE);
 798            this.binding.textinput.setHint(R.string.you_are_not_participating);
 799        } else {
 800            this.binding.textInputHint.setVisibility(View.GONE);
 801            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 802            getActivity().invalidateOptionsMenu();
 803        }
 804    }
 805
 806    public void setupIme() {
 807        this.binding.textinput.refreshIme();
 808    }
 809
 810    private void handleActivityResult(ActivityResult activityResult) {
 811        if (activityResult.resultCode == Activity.RESULT_OK) {
 812            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 813        } else {
 814            handleNegativeActivityResult(activityResult.requestCode);
 815        }
 816    }
 817
 818    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 819        switch (requestCode) {
 820            case REQUEST_TRUST_KEYS_TEXT:
 821                sendMessage();
 822                break;
 823            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 824                commitAttachments();
 825                break;
 826            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 827                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 828                mediaPreviewAdapter.addMediaPreviews(imageUris);
 829                toggleInputMethod();
 830                break;
 831            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 832                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 833                if (takePhotoUri != null) {
 834                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 835                    toggleInputMethod();
 836                } else {
 837                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 838                }
 839                break;
 840            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 841            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 842            case ATTACHMENT_CHOICE_RECORD_VOICE:
 843                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 844                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 845                mediaPreviewAdapter.addMediaPreviews(fileUris);
 846                toggleInputMethod();
 847                break;
 848            case ATTACHMENT_CHOICE_LOCATION:
 849                double latitude = data.getDoubleExtra("latitude", 0);
 850                double longitude = data.getDoubleExtra("longitude", 0);
 851                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 852                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 853                toggleInputMethod();
 854                break;
 855            case REQUEST_INVITE_TO_CONVERSATION:
 856                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 857                if (invite != null) {
 858                    if (invite.execute(activity)) {
 859                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 860                        activity.mToast.show();
 861                    }
 862                }
 863                break;
 864        }
 865    }
 866
 867    private void commitAttachments() {
 868        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 869        if (anyNeedsExternalStoragePermission(attachments) && !hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 870            return;
 871        }
 872        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 873            return;
 874        }
 875        final PresenceSelector.OnPresenceSelected callback = () -> {
 876            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 877                final Attachment attachment = i.next();
 878                if (attachment.getType() == Attachment.Type.LOCATION) {
 879                    attachLocationToConversation(conversation, attachment.getUri());
 880                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 881                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 882                    attachImageToConversation(conversation, attachment.getUri());
 883                } else {
 884                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 885                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 886                }
 887            }
 888            mediaPreviewAdapter.notifyDataSetChanged();
 889            toggleInputMethod();
 890        };
 891        if (conversation == null
 892                || conversation.getMode() == Conversation.MODE_MULTI
 893                || Attachment.canBeSendInband(attachments)
 894                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 895            callback.onPresenceSelected();
 896        } else {
 897            activity.selectPresence(conversation, callback);
 898        }
 899    }
 900
 901
 902    private static boolean anyNeedsExternalStoragePermission(final Collection<Attachment> attachments) {
 903        for (final Attachment attachment : attachments) {
 904            if (attachment.getType() != Attachment.Type.LOCATION) {
 905                return true;
 906            }
 907        }
 908        return false;
 909    }
 910
 911    public void toggleInputMethod() {
 912        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 913        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 914        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 915        updateSendButton();
 916    }
 917
 918    private void handleNegativeActivityResult(int requestCode) {
 919        switch (requestCode) {
 920            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 921                if (pendingTakePhotoUri.clear()) {
 922                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 923                }
 924                break;
 925        }
 926    }
 927
 928    @Override
 929    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 930        super.onActivityResult(requestCode, resultCode, data);
 931        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 932        if (activity != null && activity.xmppConnectionService != null) {
 933            handleActivityResult(activityResult);
 934        } else {
 935            this.postponedActivityResult.push(activityResult);
 936        }
 937    }
 938
 939    public void unblockConversation(final Blockable conversation) {
 940        activity.xmppConnectionService.sendUnblockRequest(conversation);
 941    }
 942
 943    @Override
 944    public void onAttach(Activity activity) {
 945        super.onAttach(activity);
 946        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 947        if (activity instanceof ConversationsActivity) {
 948            this.activity = (ConversationsActivity) activity;
 949        } else {
 950            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 951        }
 952    }
 953
 954    @Override
 955    public void onDetach() {
 956        super.onDetach();
 957        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 958    }
 959
 960    @Override
 961    public void onCreate(Bundle savedInstanceState) {
 962        super.onCreate(savedInstanceState);
 963        setHasOptionsMenu(true);
 964    }
 965
 966    @Override
 967    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 968        menuInflater.inflate(R.menu.fragment_conversation, menu);
 969        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 970        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 971        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 972        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 973        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 974        final MenuItem menuCall = menu.findItem(R.id.action_call);
 975        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
 976        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 977        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
 978
 979
 980        if (conversation != null) {
 981            if (conversation.getMode() == Conversation.MODE_MULTI) {
 982                menuContactDetails.setVisible(false);
 983                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 984                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 985                menuCall.setVisible(false);
 986                menuOngoingCall.setVisible(false);
 987            } else {
 988                final XmppConnectionService service = activity.xmppConnectionService;
 989                final Optional<OngoingRtpSession> ongoingRtpSession = service == null ? Optional.absent() : service.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
 990                if (ongoingRtpSession.isPresent()) {
 991                    menuOngoingCall.setVisible(true);
 992                    menuCall.setVisible(false);
 993                } else {
 994                    menuOngoingCall.setVisible(false);
 995                    final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 996                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 997                    menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 998                }
 999                menuContactDetails.setVisible(!this.conversation.withSelf());
1000                menuMucDetails.setVisible(false);
1001                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
1002            }
1003            if (conversation.isMuted()) {
1004                menuMute.setVisible(false);
1005            } else {
1006                menuUnmute.setVisible(false);
1007            }
1008            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1009            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1010            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1011                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1012            } else {
1013                menuTogglePinned.setTitle(R.string.add_to_favorites);
1014            }
1015        }
1016        super.onCreateOptionsMenu(menu, menuInflater);
1017    }
1018
1019    @Override
1020    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1021        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1022        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
1023
1024        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
1025
1026        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1027        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1028
1029        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1030
1031        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1032        binding.messagesView.setOnScrollListener(mOnScrollListener);
1033        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1034        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1035        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1036        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1037        messageListAdapter.setOnContactPictureClicked(this);
1038        messageListAdapter.setOnContactPictureLongClicked(this);
1039        messageListAdapter.setOnQuoteListener(this::quoteText);
1040        binding.messagesView.setAdapter(messageListAdapter);
1041
1042        registerForContextMenu(binding.messagesView);
1043
1044        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1045            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1046        }
1047
1048        return binding.getRoot();
1049    }
1050
1051    @Override
1052    public void onDestroyView() {
1053        super.onDestroyView();
1054        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1055        messageListAdapter.setOnContactPictureClicked(null);
1056        messageListAdapter.setOnContactPictureLongClicked(null);
1057        messageListAdapter.setOnQuoteListener(null);
1058    }
1059
1060    private void quoteText(String text) {
1061        if (binding.textinput.isEnabled()) {
1062            binding.textinput.insertAsQuote(text);
1063            binding.textinput.requestFocus();
1064            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1065            if (inputMethodManager != null) {
1066                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1067            }
1068        }
1069    }
1070
1071    private void quoteMessage(Message message) {
1072        quoteText(MessageUtils.prepareQuote(message));
1073    }
1074
1075    @Override
1076    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1077        //This should cancel any remaining click events that would otherwise trigger links
1078        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1079        synchronized (this.messageList) {
1080            super.onCreateContextMenu(menu, v, menuInfo);
1081            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1082            this.selectedMessage = this.messageList.get(acmi.position);
1083            populateContextMenu(menu);
1084        }
1085    }
1086
1087    private void populateContextMenu(ContextMenu menu) {
1088        final Message m = this.selectedMessage;
1089        final Transferable t = m.getTransferable();
1090        Message relevantForCorrection = m;
1091        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1092            relevantForCorrection = relevantForCorrection.next();
1093        }
1094        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1095
1096            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1097                return;
1098            }
1099
1100            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1101                return;
1102            }
1103
1104            final boolean deleted = m.isDeleted();
1105            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1106                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1107            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1108            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1109            menu.setHeaderTitle(R.string.message_options);
1110            MenuItem openWith = menu.findItem(R.id.open_with);
1111            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1112            MenuItem copyLink = menu.findItem(R.id.copy_link);
1113            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1114            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1115            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1116            MenuItem shareWith = menu.findItem(R.id.share_with);
1117            MenuItem sendAgain = menu.findItem(R.id.send_again);
1118            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1119            MenuItem downloadFile = menu.findItem(R.id.download_file);
1120            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1121            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1122            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1123            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1124            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1125                copyMessage.setVisible(true);
1126                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1127                String body = m.getMergedBody().toString();
1128                if (ShareUtil.containsXmppUri(body)) {
1129                    copyLink.setTitle(R.string.copy_jabber_id);
1130                    copyLink.setVisible(true);
1131                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1132                    copyLink.setVisible(true);
1133                }
1134            }
1135            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1136                retryDecryption.setVisible(true);
1137            }
1138            if (!showError
1139                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1140                    && !m.isGeoUri()
1141                    && relevantForCorrection.isLastCorrectableMessage()
1142                    && m.getConversation() instanceof Conversation) {
1143                correctMessage.setVisible(true);
1144            }
1145            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1146                shareWith.setVisible(true);
1147            }
1148            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1149                sendAgain.setVisible(true);
1150            }
1151            if (m.hasFileOnRemoteHost()
1152                    || m.isGeoUri()
1153                    || m.treatAsDownloadable()
1154                    || t instanceof HttpDownloadConnection) {
1155                copyUrl.setVisible(true);
1156            }
1157            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1158                downloadFile.setVisible(true);
1159                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1160            }
1161            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1162                    || m.getStatus() == Message.STATUS_UNSEND
1163                    || m.getStatus() == Message.STATUS_OFFERED;
1164            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1165            if (cancelable) {
1166                cancelTransmission.setVisible(true);
1167            }
1168            if (m.isFileOrImage() && !deleted && !cancelable) {
1169                String path = m.getRelativeFilePath();
1170                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1171                    deleteFile.setVisible(true);
1172                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1173                }
1174            }
1175            if (showError) {
1176                showErrorMessage.setVisible(true);
1177            }
1178            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1179            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1180                openWith.setVisible(true);
1181            }
1182        }
1183    }
1184
1185    @Override
1186    public boolean onContextItemSelected(MenuItem item) {
1187        switch (item.getItemId()) {
1188            case R.id.share_with:
1189                ShareUtil.share(activity, selectedMessage);
1190                return true;
1191            case R.id.correct_message:
1192                correctMessage(selectedMessage);
1193                return true;
1194            case R.id.copy_message:
1195                ShareUtil.copyToClipboard(activity, selectedMessage);
1196                return true;
1197            case R.id.copy_link:
1198                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1199                return true;
1200            case R.id.quote_message:
1201                quoteMessage(selectedMessage);
1202                return true;
1203            case R.id.send_again:
1204                resendMessage(selectedMessage);
1205                return true;
1206            case R.id.copy_url:
1207                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1208                return true;
1209            case R.id.download_file:
1210                startDownloadable(selectedMessage);
1211                return true;
1212            case R.id.cancel_transmission:
1213                cancelTransmission(selectedMessage);
1214                return true;
1215            case R.id.retry_decryption:
1216                retryDecryption(selectedMessage);
1217                return true;
1218            case R.id.delete_file:
1219                deleteFile(selectedMessage);
1220                return true;
1221            case R.id.show_error_message:
1222                showErrorMessage(selectedMessage);
1223                return true;
1224            case R.id.open_with:
1225                openWith(selectedMessage);
1226                return true;
1227            default:
1228                return super.onContextItemSelected(item);
1229        }
1230    }
1231
1232    @Override
1233    public boolean onOptionsItemSelected(final MenuItem item) {
1234        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1235            return false;
1236        } else if (conversation == null) {
1237            return super.onOptionsItemSelected(item);
1238        }
1239        switch (item.getItemId()) {
1240            case R.id.encryption_choice_axolotl:
1241            case R.id.encryption_choice_pgp:
1242            case R.id.encryption_choice_none:
1243                handleEncryptionSelection(item);
1244                break;
1245            case R.id.attach_choose_picture:
1246            case R.id.attach_take_picture:
1247            case R.id.attach_record_video:
1248            case R.id.attach_choose_file:
1249            case R.id.attach_record_voice:
1250            case R.id.attach_location:
1251                handleAttachmentSelection(item);
1252                break;
1253            case R.id.action_search:
1254                startSearch();
1255                break;
1256            case R.id.action_archive:
1257                activity.xmppConnectionService.archiveConversation(conversation);
1258                break;
1259            case R.id.action_contact_details:
1260                activity.switchToContactDetails(conversation.getContact());
1261                break;
1262            case R.id.action_muc_details:
1263                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1264                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1265                intent.putExtra("uuid", conversation.getUuid());
1266                startActivity(intent);
1267                break;
1268            case R.id.action_invite:
1269                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1270                break;
1271            case R.id.action_clear_history:
1272                clearHistoryDialog(conversation);
1273                break;
1274            case R.id.action_mute:
1275                muteConversationDialog(conversation);
1276                break;
1277            case R.id.action_unmute:
1278                unmuteConversation(conversation);
1279                break;
1280            case R.id.action_block:
1281            case R.id.action_unblock:
1282                final Activity activity = getActivity();
1283                if (activity instanceof XmppActivity) {
1284                    BlockContactDialog.show((XmppActivity) activity, conversation);
1285                }
1286                break;
1287            case R.id.action_audio_call:
1288                checkPermissionAndTriggerAudioCall();
1289                break;
1290            case R.id.action_video_call:
1291                checkPermissionAndTriggerVideoCall();
1292                break;
1293            case R.id.action_ongoing_call:
1294                returnToOngoingCall();
1295                break;
1296            case R.id.action_toggle_pinned:
1297                togglePinned();
1298                break;
1299            default:
1300                break;
1301        }
1302        return super.onOptionsItemSelected(item);
1303    }
1304
1305    private void startSearch() {
1306        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1307        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1308        startActivity(intent);
1309    }
1310
1311    private void returnToOngoingCall() {
1312        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1313        if (ongoingRtpSession.isPresent()) {
1314            final OngoingRtpSession id = ongoingRtpSession.get();
1315            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1316            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1317            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1318            if (id instanceof AbstractJingleConnection.Id) {
1319                intent.setAction(Intent.ACTION_VIEW);
1320                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1321            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1322                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1323                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1324                } else {
1325                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1326                }
1327            }
1328            startActivity(intent);
1329        }
1330
1331    }
1332
1333    private void togglePinned() {
1334        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1335        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1336        activity.xmppConnectionService.updateConversation(conversation);
1337        activity.invalidateOptionsMenu();
1338    }
1339
1340    private void checkPermissionAndTriggerAudioCall() {
1341        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1342            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1343            return;
1344        }
1345        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1346            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1347        }
1348    }
1349
1350    private void checkPermissionAndTriggerVideoCall() {
1351        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1352            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1353            return;
1354        }
1355        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1356            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1357        }
1358    }
1359
1360
1361    private void triggerRtpSession(final String action) {
1362        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1363            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1364            return;
1365        }
1366
1367        final Contact contact = conversation.getContact();
1368        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1369            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1370        } else {
1371            final RtpCapability.Capability capability;
1372            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1373                capability = RtpCapability.Capability.VIDEO;
1374            } else {
1375                capability = RtpCapability.Capability.AUDIO;
1376            }
1377            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1378                triggerRtpSession(contact.getAccount(), fullJid, action);
1379            });
1380        }
1381    }
1382
1383    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1384        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1385        intent.setAction(action);
1386        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1387        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1388        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1389        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1390        startActivity(intent);
1391    }
1392
1393    private void handleAttachmentSelection(MenuItem item) {
1394        switch (item.getItemId()) {
1395            case R.id.attach_choose_picture:
1396                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1397                break;
1398            case R.id.attach_take_picture:
1399                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1400                break;
1401            case R.id.attach_record_video:
1402                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1403                break;
1404            case R.id.attach_choose_file:
1405                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1406                break;
1407            case R.id.attach_record_voice:
1408                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1409                break;
1410            case R.id.attach_location:
1411                attachFile(ATTACHMENT_CHOICE_LOCATION);
1412                break;
1413        }
1414    }
1415
1416    private void handleEncryptionSelection(MenuItem item) {
1417        if (conversation == null) {
1418            return;
1419        }
1420        final boolean updated;
1421        switch (item.getItemId()) {
1422            case R.id.encryption_choice_none:
1423                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1424                item.setChecked(true);
1425                break;
1426            case R.id.encryption_choice_pgp:
1427                if (activity.hasPgp()) {
1428                    if (conversation.getAccount().getPgpSignature() != null) {
1429                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1430                        item.setChecked(true);
1431                    } else {
1432                        updated = false;
1433                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1434                    }
1435                } else {
1436                    activity.showInstallPgpDialog();
1437                    updated = false;
1438                }
1439                break;
1440            case R.id.encryption_choice_axolotl:
1441                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1442                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1443                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1444                item.setChecked(true);
1445                break;
1446            default:
1447                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1448                break;
1449        }
1450        if (updated) {
1451            activity.xmppConnectionService.updateConversation(conversation);
1452        }
1453        updateChatMsgHint();
1454        getActivity().invalidateOptionsMenu();
1455        activity.refreshUi();
1456    }
1457
1458    public void attachFile(final int attachmentChoice) {
1459        attachFile(attachmentChoice, true);
1460    }
1461
1462    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1463        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1464            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1465                return;
1466            }
1467        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1468            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1469                return;
1470            }
1471        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1472            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1473                return;
1474            }
1475        }
1476        if (updateRecentlyUsed) {
1477            storeRecentlyUsedQuickAction(attachmentChoice);
1478        }
1479        final int encryption = conversation.getNextEncryption();
1480        final int mode = conversation.getMode();
1481        if (encryption == Message.ENCRYPTION_PGP) {
1482            if (activity.hasPgp()) {
1483                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1484                    activity.xmppConnectionService.getPgpEngine().hasKey(
1485                            conversation.getContact(),
1486                            new UiCallback<Contact>() {
1487
1488                                @Override
1489                                public void userInputRequired(PendingIntent pi, Contact contact) {
1490                                    startPendingIntent(pi, attachmentChoice);
1491                                }
1492
1493                                @Override
1494                                public void success(Contact contact) {
1495                                    invokeAttachFileIntent(attachmentChoice);
1496                                }
1497
1498                                @Override
1499                                public void error(int error, Contact contact) {
1500                                    activity.replaceToast(getString(error));
1501                                }
1502                            });
1503                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1504                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1505                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1506                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1507                        warning.show();
1508                    }
1509                    invokeAttachFileIntent(attachmentChoice);
1510                } else {
1511                    showNoPGPKeyDialog(false, (dialog, which) -> {
1512                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1513                        activity.xmppConnectionService.updateConversation(conversation);
1514                        invokeAttachFileIntent(attachmentChoice);
1515                    });
1516                }
1517            } else {
1518                activity.showInstallPgpDialog();
1519            }
1520        } else {
1521            invokeAttachFileIntent(attachmentChoice);
1522        }
1523    }
1524
1525    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1526        try {
1527            activity.getPreferences().edit()
1528                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1529                    .apply();
1530        } catch (IllegalArgumentException e) {
1531            //just do not save
1532        }
1533    }
1534
1535    @Override
1536    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1537        if (grantResults.length > 0) {
1538            if (allGranted(grantResults)) {
1539                switch (requestCode) {
1540                    case REQUEST_START_DOWNLOAD:
1541                        if (this.mPendingDownloadableMessage != null) {
1542                            startDownloadable(this.mPendingDownloadableMessage);
1543                        }
1544                        break;
1545                    case REQUEST_ADD_EDITOR_CONTENT:
1546                        if (this.mPendingEditorContent != null) {
1547                            attachEditorContentToConversation(this.mPendingEditorContent);
1548                        }
1549                        break;
1550                    case REQUEST_COMMIT_ATTACHMENTS:
1551                        commitAttachments();
1552                        break;
1553                    case REQUEST_START_AUDIO_CALL:
1554                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1555                        break;
1556                    case REQUEST_START_VIDEO_CALL:
1557                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1558                        break;
1559                    default:
1560                        attachFile(requestCode);
1561                        break;
1562                }
1563            } else {
1564                @StringRes int res;
1565                String firstDenied = getFirstDenied(grantResults, permissions);
1566                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1567                    res = R.string.no_microphone_permission;
1568                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1569                    res = R.string.no_camera_permission;
1570                } else {
1571                    res = R.string.no_storage_permission;
1572                }
1573                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1574            }
1575        }
1576        if (writeGranted(grantResults, permissions)) {
1577            if (activity != null && activity.xmppConnectionService != null) {
1578                activity.xmppConnectionService.restartFileObserver();
1579            }
1580            refresh();
1581        }
1582    }
1583
1584    public void startDownloadable(Message message) {
1585        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1586            this.mPendingDownloadableMessage = message;
1587            return;
1588        }
1589        Transferable transferable = message.getTransferable();
1590        if (transferable != null) {
1591            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1592                createNewConnection(message);
1593                return;
1594            }
1595            if (!transferable.start()) {
1596                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1597                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1598            }
1599        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1600            createNewConnection(message);
1601        } else {
1602            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1603        }
1604    }
1605
1606    private void createNewConnection(final Message message) {
1607        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1608            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1609            return;
1610        }
1611        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1612    }
1613
1614    @SuppressLint("InflateParams")
1615    protected void clearHistoryDialog(final Conversation conversation) {
1616        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1617        builder.setTitle(getString(R.string.clear_conversation_history));
1618        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1619        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1620        builder.setView(dialogView);
1621        builder.setNegativeButton(getString(R.string.cancel), null);
1622        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1623            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1624            if (endConversationCheckBox.isChecked()) {
1625                this.activity.xmppConnectionService.archiveConversation(conversation);
1626                this.activity.onConversationArchived(conversation);
1627            } else {
1628                activity.onConversationsListItemUpdated();
1629                refresh();
1630            }
1631        });
1632        builder.create().show();
1633    }
1634
1635    protected void muteConversationDialog(final Conversation conversation) {
1636        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1637        builder.setTitle(R.string.disable_notifications);
1638        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1639        final CharSequence[] labels = new CharSequence[durations.length];
1640        for (int i = 0; i < durations.length; ++i) {
1641            if (durations[i] == -1) {
1642                labels[i] = getString(R.string.until_further_notice);
1643            } else {
1644                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1645            }
1646        }
1647        builder.setItems(labels, (dialog, which) -> {
1648            final long till;
1649            if (durations[which] == -1) {
1650                till = Long.MAX_VALUE;
1651            } else {
1652                till = System.currentTimeMillis() + (durations[which] * 1000);
1653            }
1654            conversation.setMutedTill(till);
1655            activity.xmppConnectionService.updateConversation(conversation);
1656            activity.onConversationsListItemUpdated();
1657            refresh();
1658            getActivity().invalidateOptionsMenu();
1659        });
1660        builder.create().show();
1661    }
1662
1663    private boolean hasPermissions(int requestCode, String... permissions) {
1664        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1665            final List<String> missingPermissions = new ArrayList<>();
1666            for (String permission : permissions) {
1667                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1668                    continue;
1669                }
1670                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1671                    missingPermissions.add(permission);
1672                }
1673            }
1674            if (missingPermissions.size() == 0) {
1675                return true;
1676            } else {
1677                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1678                return false;
1679            }
1680        } else {
1681            return true;
1682        }
1683    }
1684
1685    public void unmuteConversation(final Conversation conversation) {
1686        conversation.setMutedTill(0);
1687        this.activity.xmppConnectionService.updateConversation(conversation);
1688        this.activity.onConversationsListItemUpdated();
1689        refresh();
1690        getActivity().invalidateOptionsMenu();
1691    }
1692
1693
1694    protected void invokeAttachFileIntent(final int attachmentChoice) {
1695        Intent intent = new Intent();
1696        boolean chooser = false;
1697        switch (attachmentChoice) {
1698            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1699                intent.setAction(Intent.ACTION_GET_CONTENT);
1700                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1701                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1702                }
1703                intent.setType("image/*");
1704                chooser = true;
1705                break;
1706            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1707                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1708                break;
1709            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1710                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1711                pendingTakePhotoUri.push(uri);
1712                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1713                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1714                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1715                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1716                break;
1717            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1718                chooser = true;
1719                intent.setType("*/*");
1720                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1721                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1722                }
1723                intent.addCategory(Intent.CATEGORY_OPENABLE);
1724                intent.setAction(Intent.ACTION_GET_CONTENT);
1725                break;
1726            case ATTACHMENT_CHOICE_RECORD_VOICE:
1727                intent = new Intent(getActivity(), RecordingActivity.class);
1728                break;
1729            case ATTACHMENT_CHOICE_LOCATION:
1730                intent = GeoHelper.getFetchIntent(activity);
1731                break;
1732        }
1733        final Context context = getActivity();
1734        if (context == null) {
1735            return;
1736        }
1737        if (intent.resolveActivity(context.getPackageManager()) != null) {
1738            if (chooser) {
1739                startActivityForResult(
1740                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1741                        attachmentChoice);
1742            } else {
1743                startActivityForResult(intent, attachmentChoice);
1744            }
1745        } else {
1746            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
1747        }
1748    }
1749
1750    @Override
1751    public void onResume() {
1752        super.onResume();
1753        binding.messagesView.post(this::fireReadEvent);
1754    }
1755
1756    private void fireReadEvent() {
1757        if (activity != null && this.conversation != null) {
1758            String uuid = getLastVisibleMessageUuid();
1759            if (uuid != null) {
1760                activity.onConversationRead(this.conversation, uuid);
1761            }
1762        }
1763    }
1764
1765    private String getLastVisibleMessageUuid() {
1766        if (binding == null) {
1767            return null;
1768        }
1769        synchronized (this.messageList) {
1770            int pos = binding.messagesView.getLastVisiblePosition();
1771            if (pos >= 0) {
1772                Message message = null;
1773                for (int i = pos; i >= 0; --i) {
1774                    try {
1775                        message = (Message) binding.messagesView.getItemAtPosition(i);
1776                    } catch (IndexOutOfBoundsException e) {
1777                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1778                        continue;
1779                    }
1780                    if (message.getType() != Message.TYPE_STATUS) {
1781                        break;
1782                    }
1783                }
1784                if (message != null) {
1785                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1786                        message = message.next();
1787                    }
1788                    return message.getUuid();
1789                }
1790            }
1791        }
1792        return null;
1793    }
1794
1795    private void openWith(final Message message) {
1796        if (message.isGeoUri()) {
1797            GeoHelper.view(getActivity(), message);
1798        } else {
1799            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1800            ViewUtil.view(activity, file);
1801        }
1802    }
1803
1804    private void showErrorMessage(final Message message) {
1805        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1806        builder.setTitle(R.string.error_message);
1807        final String errorMessage = message.getErrorMessage();
1808        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1809        final String displayError;
1810        if (errorMessageParts.length == 2) {
1811            displayError = errorMessageParts[1];
1812        } else {
1813            displayError = errorMessage;
1814        }
1815        builder.setMessage(displayError);
1816        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1817            activity.copyTextToClipboard(displayError, R.string.error_message);
1818            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1819        });
1820        builder.setPositiveButton(R.string.confirm, null);
1821        builder.create().show();
1822    }
1823
1824
1825    private void deleteFile(final Message message) {
1826        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1827        builder.setNegativeButton(R.string.cancel, null);
1828        builder.setTitle(R.string.delete_file_dialog);
1829        builder.setMessage(R.string.delete_file_dialog_msg);
1830        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1831            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1832                message.setDeleted(true);
1833                activity.xmppConnectionService.evictPreview(message.getUuid());
1834                activity.xmppConnectionService.updateMessage(message, false);
1835                activity.onConversationsListItemUpdated();
1836                refresh();
1837            }
1838        });
1839        builder.create().show();
1840
1841    }
1842
1843    private void resendMessage(final Message message) {
1844        if (message.isFileOrImage()) {
1845            if (!(message.getConversation() instanceof Conversation)) {
1846                return;
1847            }
1848            final Conversation conversation = (Conversation) message.getConversation();
1849            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1850            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1851                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1852                if (!message.hasFileOnRemoteHost()
1853                        && xmppConnection != null
1854                        && conversation.getMode() == Conversational.MODE_SINGLE
1855                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1856                    activity.selectPresence(conversation, () -> {
1857                        message.setCounterpart(conversation.getNextCounterpart());
1858                        activity.xmppConnectionService.resendFailedMessages(message);
1859                        new Handler().post(() -> {
1860                            int size = messageList.size();
1861                            this.binding.messagesView.setSelection(size - 1);
1862                        });
1863                    });
1864                    return;
1865                }
1866            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1867                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1868                return;
1869            } else {
1870                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1871                message.setDeleted(true);
1872                activity.xmppConnectionService.updateMessage(message, false);
1873                activity.onConversationsListItemUpdated();
1874                refresh();
1875                return;
1876            }
1877        }
1878        activity.xmppConnectionService.resendFailedMessages(message);
1879        new Handler().post(() -> {
1880            int size = messageList.size();
1881            this.binding.messagesView.setSelection(size - 1);
1882        });
1883    }
1884
1885    private void cancelTransmission(Message message) {
1886        Transferable transferable = message.getTransferable();
1887        if (transferable != null) {
1888            transferable.cancel();
1889        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1890            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1891        }
1892    }
1893
1894    private void retryDecryption(Message message) {
1895        message.setEncryption(Message.ENCRYPTION_PGP);
1896        activity.onConversationsListItemUpdated();
1897        refresh();
1898        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1899    }
1900
1901    public void privateMessageWith(final Jid counterpart) {
1902        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1903            activity.xmppConnectionService.sendChatState(conversation);
1904        }
1905        this.binding.textinput.setText("");
1906        this.conversation.setNextCounterpart(counterpart);
1907        updateChatMsgHint();
1908        updateSendButton();
1909        updateEditablity();
1910    }
1911
1912    private void correctMessage(Message message) {
1913        while (message.mergeable(message.next())) {
1914            message = message.next();
1915        }
1916        this.conversation.setCorrectingMessage(message);
1917        final Editable editable = binding.textinput.getText();
1918        this.conversation.setDraftMessage(editable.toString());
1919        this.binding.textinput.setText("");
1920        this.binding.textinput.append(message.getBody());
1921
1922    }
1923
1924    private void highlightInConference(String nick) {
1925        final Editable editable = this.binding.textinput.getText();
1926        String oldString = editable.toString().trim();
1927        final int pos = this.binding.textinput.getSelectionStart();
1928        if (oldString.isEmpty() || pos == 0) {
1929            editable.insert(0, nick + ": ");
1930        } else {
1931            final char before = editable.charAt(pos - 1);
1932            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1933            if (before == '\n') {
1934                editable.insert(pos, nick + ": ");
1935            } else {
1936                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1937                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1938                        editable.insert(pos - 2, ", " + nick);
1939                        return;
1940                    }
1941                }
1942                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1943                if (Character.isWhitespace(after)) {
1944                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1945                }
1946            }
1947        }
1948    }
1949
1950    @Override
1951    public void startActivityForResult(Intent intent, int requestCode) {
1952        final Activity activity = getActivity();
1953        if (activity instanceof ConversationsActivity) {
1954            ((ConversationsActivity) activity).clearPendingViewIntent();
1955        }
1956        super.startActivityForResult(intent, requestCode);
1957    }
1958
1959    @Override
1960    public void onSaveInstanceState(Bundle outState) {
1961        super.onSaveInstanceState(outState);
1962        if (conversation != null) {
1963            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1964            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1965            final Uri uri = pendingTakePhotoUri.peek();
1966            if (uri != null) {
1967                outState.putString(STATE_PHOTO_URI, uri.toString());
1968            }
1969            final ScrollState scrollState = getScrollPosition();
1970            if (scrollState != null) {
1971                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1972            }
1973            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1974            if (attachments.size() > 0) {
1975                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1976            }
1977        }
1978    }
1979
1980    @Override
1981    public void onActivityCreated(Bundle savedInstanceState) {
1982        super.onActivityCreated(savedInstanceState);
1983        if (savedInstanceState == null) {
1984            return;
1985        }
1986        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1987        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1988        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1989        if (uuid != null) {
1990            QuickLoader.set(uuid);
1991            this.pendingConversationsUuid.push(uuid);
1992            if (attachments != null && attachments.size() > 0) {
1993                this.pendingMediaPreviews.push(attachments);
1994            }
1995            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1996            if (takePhotoUri != null) {
1997                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1998            }
1999            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2000        }
2001    }
2002
2003    @Override
2004    public void onStart() {
2005        super.onStart();
2006        if (this.reInitRequiredOnStart && this.conversation != null) {
2007            final Bundle extras = pendingExtras.pop();
2008            reInit(this.conversation, extras != null);
2009            if (extras != null) {
2010                processExtras(extras);
2011            }
2012        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2013            final String uuid = pendingConversationsUuid.pop();
2014            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2015            if (uuid != null) {
2016                findAndReInitByUuidOrArchive(uuid);
2017            }
2018        }
2019    }
2020
2021    @Override
2022    public void onStop() {
2023        super.onStop();
2024        final Activity activity = getActivity();
2025        messageListAdapter.unregisterListenerInAudioPlayer();
2026        if (activity == null || !activity.isChangingConfigurations()) {
2027            hideSoftKeyboard(activity);
2028            messageListAdapter.stopAudioPlayer();
2029        }
2030        if (this.conversation != null) {
2031            final String msg = this.binding.textinput.getText().toString();
2032            storeNextMessage(msg);
2033            updateChatState(this.conversation, msg);
2034            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2035        }
2036        this.reInitRequiredOnStart = true;
2037    }
2038
2039    private void updateChatState(final Conversation conversation, final String msg) {
2040        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2041        Account.State status = conversation.getAccount().getStatus();
2042        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2043            activity.xmppConnectionService.sendChatState(conversation);
2044        }
2045    }
2046
2047    private void saveMessageDraftStopAudioPlayer() {
2048        final Conversation previousConversation = this.conversation;
2049        if (this.activity == null || this.binding == null || previousConversation == null) {
2050            return;
2051        }
2052        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2053        final String msg = this.binding.textinput.getText().toString();
2054        storeNextMessage(msg);
2055        updateChatState(this.conversation, msg);
2056        messageListAdapter.stopAudioPlayer();
2057        mediaPreviewAdapter.clearPreviews();
2058        toggleInputMethod();
2059    }
2060
2061    public void reInit(final Conversation conversation, final Bundle extras) {
2062        QuickLoader.set(conversation.getUuid());
2063        final boolean changedConversation = this.conversation != conversation;
2064        if (changedConversation) {
2065            this.saveMessageDraftStopAudioPlayer();
2066        }
2067        this.clearPending();
2068        if (this.reInit(conversation, extras != null)) {
2069            if (extras != null) {
2070                processExtras(extras);
2071            }
2072            this.reInitRequiredOnStart = false;
2073        } else {
2074            this.reInitRequiredOnStart = true;
2075            pendingExtras.push(extras);
2076        }
2077        resetUnreadMessagesCount();
2078    }
2079
2080    private void reInit(Conversation conversation) {
2081        reInit(conversation, false);
2082    }
2083
2084    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2085        if (conversation == null) {
2086            return false;
2087        }
2088        this.conversation = conversation;
2089        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2090        if (this.activity == null || this.binding == null) {
2091            return false;
2092        }
2093
2094        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2095            activity.onConversationArchived(this.conversation);
2096            return false;
2097        }
2098
2099        stopScrolling();
2100        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
2101
2102        if (this.conversation.isRead() && hasExtras) {
2103            Log.d(Config.LOGTAG, "trimming conversation");
2104            this.conversation.trim();
2105        }
2106
2107        setupIme();
2108
2109        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2110
2111        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2112        this.binding.textinput.setKeyboardListener(null);
2113        this.binding.textinput.setText("");
2114        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2115        if (participating) {
2116            this.binding.textinput.append(this.conversation.getNextMessage());
2117        }
2118        this.binding.textinput.setKeyboardListener(this);
2119        messageListAdapter.updatePreferences();
2120        refresh(false);
2121        activity.invalidateOptionsMenu();
2122        this.conversation.messagesLoaded.set(true);
2123        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
2124
2125        if (hasExtras || scrolledToBottomAndNoPending) {
2126            resetUnreadMessagesCount();
2127            synchronized (this.messageList) {
2128                Log.d(Config.LOGTAG, "jump to first unread message");
2129                final Message first = conversation.getFirstUnreadMessage();
2130                final int bottom = Math.max(0, this.messageList.size() - 1);
2131                final int pos;
2132                final boolean jumpToBottom;
2133                if (first == null) {
2134                    pos = bottom;
2135                    jumpToBottom = true;
2136                } else {
2137                    int i = getIndexOf(first.getUuid(), this.messageList);
2138                    pos = i < 0 ? bottom : i;
2139                    jumpToBottom = false;
2140                }
2141                setSelection(pos, jumpToBottom);
2142            }
2143        }
2144
2145
2146        this.binding.messagesView.post(this::fireReadEvent);
2147        //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
2148        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2149        return true;
2150    }
2151
2152    private void resetUnreadMessagesCount() {
2153        lastMessageUuid = null;
2154        hideUnreadMessagesCount();
2155    }
2156
2157    private void hideUnreadMessagesCount() {
2158        if (this.binding == null) {
2159            return;
2160        }
2161        this.binding.scrollToBottomButton.setEnabled(false);
2162        this.binding.scrollToBottomButton.hide();
2163        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2164    }
2165
2166    private void setSelection(int pos, boolean jumpToBottom) {
2167        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2168        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2169        this.binding.messagesView.post(this::fireReadEvent);
2170    }
2171
2172
2173    private boolean scrolledToBottom() {
2174        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2175    }
2176
2177    private void processExtras(final Bundle extras) {
2178        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2179        final String text = extras.getString(Intent.EXTRA_TEXT);
2180        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2181        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2182        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2183        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2184        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2185        final List<Uri> uris = extractUris(extras);
2186        if (uris != null && uris.size() > 0) {
2187            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2188                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2189            } else {
2190                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2191                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2192            }
2193            toggleInputMethod();
2194            return;
2195        }
2196        if (nick != null) {
2197            if (pm) {
2198                Jid jid = conversation.getJid();
2199                try {
2200                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2201                    privateMessageWith(next);
2202                } catch (final IllegalArgumentException ignored) {
2203                    //do nothing
2204                }
2205            } else {
2206                final MucOptions mucOptions = conversation.getMucOptions();
2207                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2208                    highlightInConference(nick);
2209                }
2210            }
2211        } else {
2212            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2213                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2214                toggleInputMethod();
2215                return;
2216            } else if (text != null && asQuote) {
2217                quoteText(text);
2218            } else {
2219                appendText(text, doNotAppend);
2220            }
2221        }
2222        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2223            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2224            return;
2225        }
2226        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2227        if (message != null) {
2228            startDownloadable(message);
2229        }
2230    }
2231
2232    private List<Uri> extractUris(final Bundle extras) {
2233        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2234        if (uris != null) {
2235            return uris;
2236        }
2237        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2238        if (uri != null) {
2239            return Collections.singletonList(uri);
2240        } else {
2241            return null;
2242        }
2243    }
2244
2245    private List<Uri> cleanUris(final List<Uri> uris) {
2246        Iterator<Uri> iterator = uris.iterator();
2247        while (iterator.hasNext()) {
2248            final Uri uri = iterator.next();
2249            if (FileBackend.weOwnFile(getActivity(), uri)) {
2250                iterator.remove();
2251                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2252            }
2253        }
2254        return uris;
2255    }
2256
2257    private boolean showBlockSubmenu(View view) {
2258        final Jid jid = conversation.getJid();
2259        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2260        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2261        popupMenu.inflate(R.menu.block);
2262        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2263        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2264        popupMenu.setOnMenuItemClickListener(menuItem -> {
2265            Blockable blockable;
2266            switch (menuItem.getItemId()) {
2267                case R.id.reject:
2268                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2269                    updateSnackBar(conversation);
2270                    return true;
2271                case R.id.block_domain:
2272                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2273                    break;
2274                default:
2275                    blockable = conversation;
2276            }
2277            BlockContactDialog.show(activity, blockable);
2278            return true;
2279        });
2280        popupMenu.show();
2281        return true;
2282    }
2283
2284    private void updateSnackBar(final Conversation conversation) {
2285        final Account account = conversation.getAccount();
2286        final XmppConnection connection = account.getXmppConnection();
2287        final int mode = conversation.getMode();
2288        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2289        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2290            return;
2291        }
2292        if (account.getStatus() == Account.State.DISABLED) {
2293            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2294        } else if (conversation.isBlocked()) {
2295            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2296        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2297            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2298        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2299            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2300        } else if (mode == Conversation.MODE_MULTI
2301                && !conversation.getMucOptions().online()
2302                && account.getStatus() == Account.State.ONLINE) {
2303            switch (conversation.getMucOptions().getError()) {
2304                case NICK_IN_USE:
2305                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2306                    break;
2307                case NO_RESPONSE:
2308                    showSnackbar(R.string.joining_conference, 0, null);
2309                    break;
2310                case SERVER_NOT_FOUND:
2311                    if (conversation.receivedMessagesCount() > 0) {
2312                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2313                    } else {
2314                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2315                    }
2316                    break;
2317                case REMOTE_SERVER_TIMEOUT:
2318                    if (conversation.receivedMessagesCount() > 0) {
2319                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2320                    } else {
2321                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2322                    }
2323                    break;
2324                case PASSWORD_REQUIRED:
2325                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2326                    break;
2327                case BANNED:
2328                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2329                    break;
2330                case MEMBERS_ONLY:
2331                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2332                    break;
2333                case RESOURCE_CONSTRAINT:
2334                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2335                    break;
2336                case KICKED:
2337                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2338                    break;
2339                case UNKNOWN:
2340                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2341                    break;
2342                case INVALID_NICK:
2343                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2344                case SHUTDOWN:
2345                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2346                    break;
2347                case DESTROYED:
2348                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2349                    break;
2350                case NON_ANONYMOUS:
2351                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2352                    break;
2353                default:
2354                    hideSnackbar();
2355                    break;
2356            }
2357        } else if (account.hasPendingPgpIntent(conversation)) {
2358            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2359        } else if (connection != null
2360                && connection.getFeatures().blocking()
2361                && conversation.countMessages() != 0
2362                && !conversation.isBlocked()
2363                && conversation.isWithStranger()) {
2364            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2365        } else {
2366            hideSnackbar();
2367        }
2368    }
2369
2370    @Override
2371    public void refresh() {
2372        if (this.binding == null) {
2373            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2374            return;
2375        }
2376        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2377            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2378                activity.onConversationArchived(this.conversation);
2379                return;
2380            }
2381        }
2382        this.refresh(true);
2383    }
2384
2385    private void refresh(boolean notifyConversationRead) {
2386        synchronized (this.messageList) {
2387            if (this.conversation != null) {
2388                conversation.populateWithMessages(this.messageList);
2389                updateSnackBar(conversation);
2390                updateStatusMessages();
2391                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2392                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2393                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2394                }
2395                this.messageListAdapter.notifyDataSetChanged();
2396                updateChatMsgHint();
2397                if (notifyConversationRead && activity != null) {
2398                    binding.messagesView.post(this::fireReadEvent);
2399                }
2400                updateSendButton();
2401                updateEditablity();
2402            }
2403        }
2404    }
2405
2406    protected void messageSent() {
2407        mSendingPgpMessage.set(false);
2408        this.binding.textinput.setText("");
2409        if (conversation.setCorrectingMessage(null)) {
2410            this.binding.textinput.append(conversation.getDraftMessage());
2411            conversation.setDraftMessage(null);
2412        }
2413        storeNextMessage();
2414        updateChatMsgHint();
2415        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2416        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2417        if (prefScrollToBottom || scrolledToBottom()) {
2418            new Handler().post(() -> {
2419                int size = messageList.size();
2420                this.binding.messagesView.setSelection(size - 1);
2421            });
2422        }
2423    }
2424
2425    private boolean storeNextMessage() {
2426        return storeNextMessage(this.binding.textinput.getText().toString());
2427    }
2428
2429    private boolean storeNextMessage(String msg) {
2430        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2431        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2432            this.activity.xmppConnectionService.updateConversation(this.conversation);
2433            return true;
2434        }
2435        return false;
2436    }
2437
2438    public void doneSendingPgpMessage() {
2439        mSendingPgpMessage.set(false);
2440    }
2441
2442    public long getMaxHttpUploadSize(Conversation conversation) {
2443        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2444        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2445    }
2446
2447    private void updateEditablity() {
2448        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2449        this.binding.textinput.setFocusable(canWrite);
2450        this.binding.textinput.setFocusableInTouchMode(canWrite);
2451        this.binding.textSendButton.setEnabled(canWrite);
2452        this.binding.textinput.setCursorVisible(canWrite);
2453        this.binding.textinput.setEnabled(canWrite);
2454    }
2455
2456    public void updateSendButton() {
2457        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2458        final Conversation c = this.conversation;
2459        final Presence.Status status;
2460        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2461        final SendButtonAction action;
2462        if (hasAttachments) {
2463            action = SendButtonAction.TEXT;
2464        } else {
2465            action = SendButtonTool.getAction(getActivity(), c, text);
2466        }
2467        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2468            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2469                status = Presence.Status.OFFLINE;
2470            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2471                status = c.getContact().getShownStatus();
2472            } else {
2473                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2474            }
2475        } else {
2476            status = Presence.Status.OFFLINE;
2477        }
2478        this.binding.textSendButton.setTag(action);
2479        final Activity activity = getActivity();
2480        if (activity != null) {
2481            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2482        }
2483    }
2484
2485    protected void updateStatusMessages() {
2486        DateSeparator.addAll(this.messageList);
2487        if (showLoadMoreMessages(conversation)) {
2488            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2489        }
2490        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2491            ChatState state = conversation.getIncomingChatState();
2492            if (state == ChatState.COMPOSING) {
2493                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2494            } else if (state == ChatState.PAUSED) {
2495                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2496            } else {
2497                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2498                    final Message message = this.messageList.get(i);
2499                    if (message.getType() != Message.TYPE_STATUS) {
2500                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2501                            return;
2502                        } else {
2503                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2504                                this.messageList.add(i + 1,
2505                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2506                                return;
2507                            }
2508                        }
2509                    }
2510                }
2511            }
2512        } else {
2513            final MucOptions mucOptions = conversation.getMucOptions();
2514            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2515            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2516            ChatState state = ChatState.COMPOSING;
2517            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2518            if (users.size() == 0) {
2519                state = ChatState.PAUSED;
2520                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2521            }
2522            if (mucOptions.isPrivateAndNonAnonymous()) {
2523                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2524                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2525                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2526                    for (ReadByMarker marker : markersForMessage) {
2527                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2528                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2529                            MucOptions.User user = mucOptions.findUser(marker);
2530                            if (user != null && !users.contains(user)) {
2531                                shownMarkers.add(user);
2532                            }
2533                        }
2534                    }
2535                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2536                    final Message statusMessage;
2537                    final int size = shownMarkers.size();
2538                    if (size > 1) {
2539                        final String body;
2540                        if (size <= 4) {
2541                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2542                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2543                            body = getString(R.string.everyone_has_read_up_to_this_point);
2544                        } else {
2545                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2546                        }
2547                        statusMessage = Message.createStatusMessage(conversation, body);
2548                        statusMessage.setCounterparts(shownMarkers);
2549                    } else if (size == 1) {
2550                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2551                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2552                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2553                    } else {
2554                        statusMessage = null;
2555                    }
2556                    if (statusMessage != null) {
2557                        this.messageList.add(i + 1, statusMessage);
2558                    }
2559                    addedMarkers.add(markerForSender);
2560                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2561                        break;
2562                    }
2563                }
2564            }
2565            if (users.size() > 0) {
2566                Message statusMessage;
2567                if (users.size() == 1) {
2568                    MucOptions.User user = users.get(0);
2569                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2570                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2571                    statusMessage.setTrueCounterpart(user.getRealJid());
2572                    statusMessage.setCounterpart(user.getFullJid());
2573                } else {
2574                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2575                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2576                    statusMessage.setCounterparts(users);
2577                }
2578                this.messageList.add(statusMessage);
2579            }
2580
2581        }
2582    }
2583
2584    private void stopScrolling() {
2585        long now = SystemClock.uptimeMillis();
2586        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2587        binding.messagesView.dispatchTouchEvent(cancel);
2588    }
2589
2590    private boolean showLoadMoreMessages(final Conversation c) {
2591        if (activity == null || activity.xmppConnectionService == null) {
2592            return false;
2593        }
2594        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2595        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2596        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2597    }
2598
2599    private boolean hasMamSupport(final Conversation c) {
2600        if (c.getMode() == Conversation.MODE_SINGLE) {
2601            final XmppConnection connection = c.getAccount().getXmppConnection();
2602            return connection != null && connection.getFeatures().mam();
2603        } else {
2604            return c.getMucOptions().mamSupport();
2605        }
2606    }
2607
2608    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2609        showSnackbar(message, action, clickListener, null);
2610    }
2611
2612    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2613        this.binding.snackbar.setVisibility(View.VISIBLE);
2614        this.binding.snackbar.setOnClickListener(null);
2615        this.binding.snackbarMessage.setText(message);
2616        this.binding.snackbarMessage.setOnClickListener(null);
2617        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2618        if (action != 0) {
2619            this.binding.snackbarAction.setText(action);
2620        }
2621        this.binding.snackbarAction.setOnClickListener(clickListener);
2622        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2623    }
2624
2625    protected void hideSnackbar() {
2626        this.binding.snackbar.setVisibility(View.GONE);
2627    }
2628
2629    protected void sendMessage(Message message) {
2630        activity.xmppConnectionService.sendMessage(message);
2631        messageSent();
2632    }
2633
2634    protected void sendPgpMessage(final Message message) {
2635        final XmppConnectionService xmppService = activity.xmppConnectionService;
2636        final Contact contact = message.getConversation().getContact();
2637        if (!activity.hasPgp()) {
2638            activity.showInstallPgpDialog();
2639            return;
2640        }
2641        if (conversation.getAccount().getPgpSignature() == null) {
2642            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2643            return;
2644        }
2645        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2646            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2647        }
2648        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2649            if (contact.getPgpKeyId() != 0) {
2650                xmppService.getPgpEngine().hasKey(contact,
2651                        new UiCallback<Contact>() {
2652
2653                            @Override
2654                            public void userInputRequired(PendingIntent pi, Contact contact) {
2655                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2656                            }
2657
2658                            @Override
2659                            public void success(Contact contact) {
2660                                encryptTextMessage(message);
2661                            }
2662
2663                            @Override
2664                            public void error(int error, Contact contact) {
2665                                activity.runOnUiThread(() -> Toast.makeText(activity,
2666                                        R.string.unable_to_connect_to_keychain,
2667                                        Toast.LENGTH_SHORT
2668                                ).show());
2669                                mSendingPgpMessage.set(false);
2670                            }
2671                        });
2672
2673            } else {
2674                showNoPGPKeyDialog(false, (dialog, which) -> {
2675                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2676                    xmppService.updateConversation(conversation);
2677                    message.setEncryption(Message.ENCRYPTION_NONE);
2678                    xmppService.sendMessage(message);
2679                    messageSent();
2680                });
2681            }
2682        } else {
2683            if (conversation.getMucOptions().pgpKeysInUse()) {
2684                if (!conversation.getMucOptions().everybodyHasKeys()) {
2685                    Toast warning = Toast
2686                            .makeText(getActivity(),
2687                                    R.string.missing_public_keys,
2688                                    Toast.LENGTH_LONG);
2689                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2690                    warning.show();
2691                }
2692                encryptTextMessage(message);
2693            } else {
2694                showNoPGPKeyDialog(true, (dialog, which) -> {
2695                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2696                    message.setEncryption(Message.ENCRYPTION_NONE);
2697                    xmppService.updateConversation(conversation);
2698                    xmppService.sendMessage(message);
2699                    messageSent();
2700                });
2701            }
2702        }
2703    }
2704
2705    public void encryptTextMessage(Message message) {
2706        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2707                new UiCallback<Message>() {
2708
2709                    @Override
2710                    public void userInputRequired(PendingIntent pi, Message message) {
2711                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2712                    }
2713
2714                    @Override
2715                    public void success(Message message) {
2716                        //TODO the following two call can be made before the callback
2717                        getActivity().runOnUiThread(() -> messageSent());
2718                    }
2719
2720                    @Override
2721                    public void error(final int error, Message message) {
2722                        getActivity().runOnUiThread(() -> {
2723                            doneSendingPgpMessage();
2724                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2725                        });
2726
2727                    }
2728                });
2729    }
2730
2731    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2732        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2733        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2734        if (plural) {
2735            builder.setTitle(getString(R.string.no_pgp_keys));
2736            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2737        } else {
2738            builder.setTitle(getString(R.string.no_pgp_key));
2739            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2740        }
2741        builder.setNegativeButton(getString(R.string.cancel), null);
2742        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2743        builder.create().show();
2744    }
2745
2746    public void appendText(String text, final boolean doNotAppend) {
2747        if (text == null) {
2748            return;
2749        }
2750        final Editable editable = this.binding.textinput.getText();
2751        String previous = editable == null ? "" : editable.toString();
2752        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2753            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2754            return;
2755        }
2756        if (UIHelper.isLastLineQuote(previous)) {
2757            text = '\n' + text;
2758        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2759            text = " " + text;
2760        }
2761        this.binding.textinput.append(text);
2762    }
2763
2764    @Override
2765    public boolean onEnterPressed(final boolean isCtrlPressed) {
2766        if (isCtrlPressed || enterIsSend()) {
2767            sendMessage();
2768            return true;
2769        }
2770        return false;
2771    }
2772
2773    private boolean enterIsSend() {
2774        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2775        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2776    }
2777
2778    public boolean onArrowUpCtrlPressed() {
2779        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2780        if (lastEditableMessage != null) {
2781            correctMessage(lastEditableMessage);
2782            return true;
2783        } else {
2784            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2785            return false;
2786        }
2787    }
2788
2789    @Override
2790    public void onTypingStarted() {
2791        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2792        if (service == null) {
2793            return;
2794        }
2795        final Account.State status = conversation.getAccount().getStatus();
2796        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2797            service.sendChatState(conversation);
2798        }
2799        runOnUiThread(this::updateSendButton);
2800    }
2801
2802    @Override
2803    public void onTypingStopped() {
2804        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2805        if (service == null) {
2806            return;
2807        }
2808        final Account.State status = conversation.getAccount().getStatus();
2809        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2810            service.sendChatState(conversation);
2811        }
2812    }
2813
2814    @Override
2815    public void onTextDeleted() {
2816        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2817        if (service == null) {
2818            return;
2819        }
2820        final Account.State status = conversation.getAccount().getStatus();
2821        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2822            service.sendChatState(conversation);
2823        }
2824        if (storeNextMessage()) {
2825            runOnUiThread(() -> {
2826                if (activity == null) {
2827                    return;
2828                }
2829                activity.onConversationsListItemUpdated();
2830            });
2831        }
2832        runOnUiThread(this::updateSendButton);
2833    }
2834
2835    @Override
2836    public void onTextChanged() {
2837        if (conversation != null && conversation.getCorrectingMessage() != null) {
2838            runOnUiThread(this::updateSendButton);
2839        }
2840    }
2841
2842    @Override
2843    public boolean onTabPressed(boolean repeated) {
2844        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2845            return false;
2846        }
2847        if (repeated) {
2848            completionIndex++;
2849        } else {
2850            lastCompletionLength = 0;
2851            completionIndex = 0;
2852            final String content = this.binding.textinput.getText().toString();
2853            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2854            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2855            firstWord = start == 0;
2856            incomplete = content.substring(start, lastCompletionCursor);
2857        }
2858        List<String> completions = new ArrayList<>();
2859        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2860            String name = user.getName();
2861            if (name != null && name.startsWith(incomplete)) {
2862                completions.add(name + (firstWord ? ": " : " "));
2863            }
2864        }
2865        Collections.sort(completions);
2866        if (completions.size() > completionIndex) {
2867            String completion = completions.get(completionIndex).substring(incomplete.length());
2868            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2869            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2870            lastCompletionLength = completion.length();
2871        } else {
2872            completionIndex = -1;
2873            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2874            lastCompletionLength = 0;
2875        }
2876        return true;
2877    }
2878
2879    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2880        try {
2881            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2882        } catch (final SendIntentException ignored) {
2883        }
2884    }
2885
2886    @Override
2887    public void onBackendConnected() {
2888        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2889        String uuid = pendingConversationsUuid.pop();
2890        if (uuid != null) {
2891            if (!findAndReInitByUuidOrArchive(uuid)) {
2892                return;
2893            }
2894        } else {
2895            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2896                clearPending();
2897                activity.onConversationArchived(conversation);
2898                return;
2899            }
2900        }
2901        ActivityResult activityResult = postponedActivityResult.pop();
2902        if (activityResult != null) {
2903            handleActivityResult(activityResult);
2904        }
2905        clearPending();
2906    }
2907
2908    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2909        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2910        if (conversation == null) {
2911            clearPending();
2912            activity.onConversationArchived(null);
2913            return false;
2914        }
2915        reInit(conversation);
2916        ScrollState scrollState = pendingScrollState.pop();
2917        String lastMessageUuid = pendingLastMessageUuid.pop();
2918        List<Attachment> attachments = pendingMediaPreviews.pop();
2919        if (scrollState != null) {
2920            setScrollPosition(scrollState, lastMessageUuid);
2921        }
2922        if (attachments != null && attachments.size() > 0) {
2923            Log.d(Config.LOGTAG, "had attachments on restore");
2924            mediaPreviewAdapter.addMediaPreviews(attachments);
2925            toggleInputMethod();
2926        }
2927        return true;
2928    }
2929
2930    private void clearPending() {
2931        if (postponedActivityResult.clear()) {
2932            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2933            if (pendingTakePhotoUri.clear()) {
2934                Log.e(Config.LOGTAG, "cleared pending photo uri");
2935            }
2936        }
2937        if (pendingScrollState.clear()) {
2938            Log.e(Config.LOGTAG, "cleared scroll state");
2939        }
2940        if (pendingConversationsUuid.clear()) {
2941            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2942        }
2943        if (pendingMediaPreviews.clear()) {
2944            Log.e(Config.LOGTAG, "cleared pending media previews");
2945        }
2946    }
2947
2948    public Conversation getConversation() {
2949        return conversation;
2950    }
2951
2952    @Override
2953    public void onContactPictureLongClicked(View v, final Message message) {
2954        final String fingerprint;
2955        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2956            fingerprint = "pgp";
2957        } else {
2958            fingerprint = message.getFingerprint();
2959        }
2960        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2961        final Contact contact = message.getContact();
2962        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2963            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2964                final Jid cp = message.getCounterpart();
2965                if (cp == null || cp.isBareJid()) {
2966                    return;
2967                }
2968                final Jid tcp = message.getTrueCounterpart();
2969                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2970                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2971                popupMenu.inflate(R.menu.muc_details_context);
2972                final Menu menu = popupMenu.getMenu();
2973                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2974                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2975            } else {
2976                popupMenu.inflate(R.menu.one_on_one_context);
2977                popupMenu.setOnMenuItemClickListener(item -> {
2978                    switch (item.getItemId()) {
2979                        case R.id.action_contact_details:
2980                            activity.switchToContactDetails(message.getContact(), fingerprint);
2981                            break;
2982                        case R.id.action_show_qr_code:
2983                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2984                            break;
2985                    }
2986                    return true;
2987                });
2988            }
2989        } else {
2990            popupMenu.inflate(R.menu.account_context);
2991            final Menu menu = popupMenu.getMenu();
2992            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2993            popupMenu.setOnMenuItemClickListener(item -> {
2994                switch (item.getItemId()) {
2995                    case R.id.action_show_qr_code:
2996                        activity.showQrCode(conversation.getAccount().getShareableUri());
2997                        break;
2998                    case R.id.action_account_details:
2999                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3000                        break;
3001                    case R.id.action_manage_accounts:
3002                        AccountUtils.launchManageAccounts(activity);
3003                        break;
3004                }
3005                return true;
3006            });
3007        }
3008        popupMenu.show();
3009    }
3010
3011    @Override
3012    public void onContactPictureClicked(Message message) {
3013        String fingerprint;
3014        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3015            fingerprint = "pgp";
3016        } else {
3017            fingerprint = message.getFingerprint();
3018        }
3019        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3020        if (received) {
3021            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3022                Jid tcp = message.getTrueCounterpart();
3023                Jid user = message.getCounterpart();
3024                if (user != null && !user.isBareJid()) {
3025                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3026                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3027                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3028                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3029                        }
3030                        highlightInConference(user.getResource());
3031                    } else {
3032                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3033                    }
3034                }
3035                return;
3036            } else {
3037                if (!message.getContact().isSelf()) {
3038                    activity.switchToContactDetails(message.getContact(), fingerprint);
3039                    return;
3040                }
3041            }
3042        }
3043        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3044    }
3045}