ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import android.support.annotation.IdRes;
  15import android.support.annotation.NonNull;
  16import android.support.annotation.StringRes;
  17import android.support.v7.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import android.support.v13.view.inputmethod.InputConnectionCompat;
  28import android.support.v13.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.KeyEvent;
  36import android.view.LayoutInflater;
  37import android.view.Menu;
  38import android.view.MenuInflater;
  39import android.view.MenuItem;
  40import android.view.MotionEvent;
  41import android.view.View;
  42import android.view.View.OnClickListener;
  43import android.view.ViewGroup;
  44import android.view.inputmethod.EditorInfo;
  45import android.view.inputmethod.InputMethodManager;
  46import android.widget.AbsListView;
  47import android.widget.AbsListView.OnScrollListener;
  48import android.widget.AdapterView;
  49import android.widget.AdapterView.AdapterContextMenuInfo;
  50import android.widget.CheckBox;
  51import android.widget.ListView;
  52import android.widget.PopupMenu;
  53import android.widget.TextView.OnEditorActionListener;
  54import android.widget.Toast;
  55
  56import com.google.common.base.Optional;
  57
  58import java.util.ArrayList;
  59import java.util.Arrays;
  60import java.util.Collection;
  61import java.util.Collections;
  62import java.util.HashSet;
  63import java.util.Iterator;
  64import java.util.List;
  65import java.util.Set;
  66import java.util.UUID;
  67import java.util.concurrent.atomic.AtomicBoolean;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  72import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  73import eu.siacs.conversations.databinding.FragmentConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Blockable;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Conversational;
  79import eu.siacs.conversations.entities.DownloadableFile;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.MucOptions;
  82import eu.siacs.conversations.entities.MucOptions.User;
  83import eu.siacs.conversations.entities.Presence;
  84import eu.siacs.conversations.entities.ReadByMarker;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.http.HttpDownloadConnection;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.Patterns;
 116import eu.siacs.conversations.utils.QuickLoader;
 117import eu.siacs.conversations.utils.StylingHelper;
 118import eu.siacs.conversations.utils.TimeFrameUtils;
 119import eu.siacs.conversations.utils.UIHelper;
 120import eu.siacs.conversations.xml.Namespace;
 121import eu.siacs.conversations.xmpp.XmppConnection;
 122import eu.siacs.conversations.xmpp.chatstate.ChatState;
 123import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 124import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 125import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 126import eu.siacs.conversations.xmpp.jingle.Media;
 127import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 128import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 129import eu.siacs.conversations.xmpp.Jid;
 130
 131import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 132import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 133import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 134import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 135import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 136import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 137
 138
 139public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 140
 141
 142    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 143    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 144    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 145    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 146    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 147    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 148    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 149    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 150    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 151    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 152    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 153    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 154    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 155    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 156    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 157    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 158    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 159
 160    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 161    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 162    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 163    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 164    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 165    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 166
 167    private final List<Message> messageList = new ArrayList<>();
 168    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 169    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 170    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 171    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 172    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 173    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 174    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 175    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 176    public Uri mPendingEditorContent = null;
 177    protected MessageAdapter messageListAdapter;
 178    private MediaPreviewAdapter mediaPreviewAdapter;
 179    private String lastMessageUuid = null;
 180    private Conversation conversation;
 181    private FragmentConversationBinding binding;
 182    private Toast messageLoaderToast;
 183    private ConversationsActivity activity;
 184    private boolean reInitRequiredOnStart = true;
 185    private OnClickListener clickToMuc = new OnClickListener() {
 186
 187        @Override
 188        public void onClick(View v) {
 189            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 190            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 191            intent.putExtra("uuid", conversation.getUuid());
 192            startActivity(intent);
 193        }
 194    };
 195    private OnClickListener leaveMuc = new OnClickListener() {
 196
 197        @Override
 198        public void onClick(View v) {
 199            activity.xmppConnectionService.archiveConversation(conversation);
 200        }
 201    };
 202    private OnClickListener joinMuc = new OnClickListener() {
 203
 204        @Override
 205        public void onClick(View v) {
 206            activity.xmppConnectionService.joinMuc(conversation);
 207        }
 208    };
 209
 210    private OnClickListener acceptJoin = new OnClickListener() {
 211        @Override
 212        public void onClick(View v) {
 213            conversation.setAttribute("accept_non_anonymous", true);
 214            activity.xmppConnectionService.updateConversation(conversation);
 215            activity.xmppConnectionService.joinMuc(conversation);
 216        }
 217    };
 218
 219    private OnClickListener enterPassword = new OnClickListener() {
 220
 221        @Override
 222        public void onClick(View v) {
 223            MucOptions muc = conversation.getMucOptions();
 224            String password = muc.getPassword();
 225            if (password == null) {
 226                password = "";
 227            }
 228            activity.quickPasswordEdit(password, value -> {
 229                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 230                return null;
 231            });
 232        }
 233    };
 234    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 235
 236        @Override
 237        public void onScrollStateChanged(AbsListView view, int scrollState) {
 238            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 239                fireReadEvent();
 240            }
 241        }
 242
 243        @Override
 244        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 245            toggleScrollDownButton(view);
 246            synchronized (ConversationFragment.this.messageList) {
 247                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 248                    long timestamp;
 249                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 250                        timestamp = messageList.get(1).getTimeSent();
 251                    } else {
 252                        timestamp = messageList.get(0).getTimeSent();
 253                    }
 254                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 255                        @Override
 256                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 257                            if (ConversationFragment.this.conversation != conversation) {
 258                                conversation.messagesLoaded.set(true);
 259                                return;
 260                            }
 261                            runOnUiThread(() -> {
 262                                synchronized (messageList) {
 263                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 264                                    Message message = null;
 265                                    int childPos;
 266                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 267                                        message = messageList.get(oldPosition + childPos);
 268                                        if (message.getType() != Message.TYPE_STATUS) {
 269                                            break;
 270                                        }
 271                                    }
 272                                    final String uuid = message != null ? message.getUuid() : null;
 273                                    View v = binding.messagesView.getChildAt(childPos);
 274                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 275                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 276                                    try {
 277                                        updateStatusMessages();
 278                                    } catch (IllegalStateException e) {
 279                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 280                                    }
 281                                    messageListAdapter.notifyDataSetChanged();
 282                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 283                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 284                                    if (messageLoaderToast != null) {
 285                                        messageLoaderToast.cancel();
 286                                    }
 287                                    conversation.messagesLoaded.set(true);
 288                                }
 289                            });
 290                        }
 291
 292                        @Override
 293                        public void informUser(final int resId) {
 294
 295                            runOnUiThread(() -> {
 296                                if (messageLoaderToast != null) {
 297                                    messageLoaderToast.cancel();
 298                                }
 299                                if (ConversationFragment.this.conversation != conversation) {
 300                                    return;
 301                                }
 302                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 303                                messageLoaderToast.show();
 304                            });
 305
 306                        }
 307                    });
 308
 309                }
 310            }
 311        }
 312    };
 313    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 314        @Override
 315        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 316            // try to get permission to read the image, if applicable
 317            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 318                try {
 319                    inputContentInfo.requestPermission();
 320                } catch (Exception e) {
 321                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 322                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 323                    ).show();
 324                    return false;
 325                }
 326            }
 327            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 328                attachEditorContentToConversation(inputContentInfo.getContentUri());
 329            } else {
 330                mPendingEditorContent = inputContentInfo.getContentUri();
 331            }
 332            return true;
 333        }
 334    };
 335    private Message selectedMessage;
 336    private OnClickListener mEnableAccountListener = new OnClickListener() {
 337        @Override
 338        public void onClick(View v) {
 339            final Account account = conversation == null ? null : conversation.getAccount();
 340            if (account != null) {
 341                account.setOption(Account.OPTION_DISABLED, false);
 342                activity.xmppConnectionService.updateAccount(account);
 343            }
 344        }
 345    };
 346    private OnClickListener mUnblockClickListener = new OnClickListener() {
 347        @Override
 348        public void onClick(final View v) {
 349            v.post(() -> v.setVisibility(View.INVISIBLE));
 350            if (conversation.isDomainBlocked()) {
 351                BlockContactDialog.show(activity, conversation);
 352            } else {
 353                unblockConversation(conversation);
 354            }
 355        }
 356    };
 357    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 358    private OnClickListener mAddBackClickListener = new OnClickListener() {
 359
 360        @Override
 361        public void onClick(View v) {
 362            final Contact contact = conversation == null ? null : conversation.getContact();
 363            if (contact != null) {
 364                activity.xmppConnectionService.createContact(contact, true);
 365                activity.switchToContactDetails(contact);
 366            }
 367        }
 368    };
 369    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 370    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 371        @Override
 372        public void onClick(View v) {
 373            final Contact contact = conversation == null ? null : conversation.getContact();
 374            if (contact != null) {
 375                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 376                        activity.xmppConnectionService.getPresenceGenerator()
 377                                .sendPresenceUpdatesTo(contact));
 378                hideSnackbar();
 379            }
 380        }
 381    };
 382    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 383
 384        @Override
 385        public void onClick(View v) {
 386            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 387            if (pendingIntent != null) {
 388                try {
 389                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 390                            REQUEST_DECRYPT_PGP,
 391                            null,
 392                            0,
 393                            0,
 394                            0);
 395                } catch (SendIntentException e) {
 396                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 397                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 398                }
 399            }
 400            updateSnackBar(conversation);
 401        }
 402    };
 403    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 404    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 405        if (actionId == EditorInfo.IME_ACTION_SEND) {
 406            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 407            if (imm != null && imm.isFullscreenMode()) {
 408                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 409            }
 410            sendMessage();
 411            return true;
 412        } else {
 413            return false;
 414        }
 415    };
 416    private OnClickListener mScrollButtonListener = new OnClickListener() {
 417
 418        @Override
 419        public void onClick(View v) {
 420            stopScrolling();
 421            setSelection(binding.messagesView.getCount() - 1, true);
 422        }
 423    };
 424    private OnClickListener mSendButtonListener = new OnClickListener() {
 425
 426        @Override
 427        public void onClick(View v) {
 428            Object tag = v.getTag();
 429            if (tag instanceof SendButtonAction) {
 430                SendButtonAction action = (SendButtonAction) tag;
 431                switch (action) {
 432                    case TAKE_PHOTO:
 433                    case RECORD_VIDEO:
 434                    case SEND_LOCATION:
 435                    case RECORD_VOICE:
 436                    case CHOOSE_PICTURE:
 437                        attachFile(action.toChoice());
 438                        break;
 439                    case CANCEL:
 440                        if (conversation != null) {
 441                            if (conversation.setCorrectingMessage(null)) {
 442                                binding.textinput.setText("");
 443                                binding.textinput.append(conversation.getDraftMessage());
 444                                conversation.setDraftMessage(null);
 445                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 446                                conversation.setNextCounterpart(null);
 447                                binding.textinput.setText("");
 448                            } else {
 449                                binding.textinput.setText("");
 450                            }
 451                            updateChatMsgHint();
 452                            updateSendButton();
 453                            updateEditablity();
 454                        }
 455                        break;
 456                    default:
 457                        sendMessage();
 458                }
 459            } else {
 460                sendMessage();
 461            }
 462        }
 463    };
 464    private int completionIndex = 0;
 465    private int lastCompletionLength = 0;
 466    private String incomplete;
 467    private int lastCompletionCursor;
 468    private boolean firstWord = false;
 469    private Message mPendingDownloadableMessage;
 470
 471    private static ConversationFragment findConversationFragment(Activity activity) {
 472        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 473        if (fragment instanceof ConversationFragment) {
 474            return (ConversationFragment) fragment;
 475        }
 476        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 477        if (fragment instanceof ConversationFragment) {
 478            return (ConversationFragment) fragment;
 479        }
 480        return null;
 481    }
 482
 483    public static void startStopPending(Activity activity) {
 484        ConversationFragment fragment = findConversationFragment(activity);
 485        if (fragment != null) {
 486            fragment.messageListAdapter.startStopPending();
 487        }
 488    }
 489
 490    public static void downloadFile(Activity activity, Message message) {
 491        ConversationFragment fragment = findConversationFragment(activity);
 492        if (fragment != null) {
 493            fragment.startDownloadable(message);
 494        }
 495    }
 496
 497    public static void registerPendingMessage(Activity activity, Message message) {
 498        ConversationFragment fragment = findConversationFragment(activity);
 499        if (fragment != null) {
 500            fragment.pendingMessage.push(message);
 501        }
 502    }
 503
 504    public static void openPendingMessage(Activity activity) {
 505        ConversationFragment fragment = findConversationFragment(activity);
 506        if (fragment != null) {
 507            Message message = fragment.pendingMessage.pop();
 508            if (message != null) {
 509                fragment.messageListAdapter.openDownloadable(message);
 510            }
 511        }
 512    }
 513
 514    public static Conversation getConversation(Activity activity) {
 515        return getConversation(activity, R.id.secondary_fragment);
 516    }
 517
 518    private static Conversation getConversation(Activity activity, @IdRes int res) {
 519        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 520        if (fragment != null && fragment instanceof ConversationFragment) {
 521            return ((ConversationFragment) fragment).getConversation();
 522        } else {
 523            return null;
 524        }
 525    }
 526
 527    public static ConversationFragment get(Activity activity) {
 528        FragmentManager fragmentManager = activity.getFragmentManager();
 529        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 530        if (fragment != null && fragment instanceof ConversationFragment) {
 531            return (ConversationFragment) fragment;
 532        } else {
 533            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 534            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 535        }
 536    }
 537
 538    public static Conversation getConversationReliable(Activity activity) {
 539        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 540        if (conversation != null) {
 541            return conversation;
 542        }
 543        return getConversation(activity, R.id.main_fragment);
 544    }
 545
 546    private static boolean scrolledToBottom(AbsListView listView) {
 547        final int count = listView.getCount();
 548        if (count == 0) {
 549            return true;
 550        } else if (listView.getLastVisiblePosition() == count - 1) {
 551            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 552            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 553        } else {
 554            return false;
 555        }
 556    }
 557
 558    private void toggleScrollDownButton() {
 559        toggleScrollDownButton(binding.messagesView);
 560    }
 561
 562    private void toggleScrollDownButton(AbsListView listView) {
 563        if (conversation == null) {
 564            return;
 565        }
 566        if (scrolledToBottom(listView)) {
 567            lastMessageUuid = null;
 568            hideUnreadMessagesCount();
 569        } else {
 570            binding.scrollToBottomButton.setEnabled(true);
 571            binding.scrollToBottomButton.show();
 572            if (lastMessageUuid == null) {
 573                lastMessageUuid = conversation.getLatestMessage().getUuid();
 574            }
 575            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 576                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 577            }
 578        }
 579    }
 580
 581    private int getIndexOf(String uuid, List<Message> messages) {
 582        if (uuid == null) {
 583            return messages.size() - 1;
 584        }
 585        for (int i = 0; i < messages.size(); ++i) {
 586            if (uuid.equals(messages.get(i).getUuid())) {
 587                return i;
 588            } else {
 589                Message next = messages.get(i);
 590                while (next != null && next.wasMergedIntoPrevious()) {
 591                    if (uuid.equals(next.getUuid())) {
 592                        return i;
 593                    }
 594                    next = next.next();
 595                }
 596
 597            }
 598        }
 599        return -1;
 600    }
 601
 602    private ScrollState getScrollPosition() {
 603        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 604        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 605            return null;
 606        } else {
 607            final int pos = listView.getFirstVisiblePosition();
 608            final View view = listView.getChildAt(0);
 609            if (view == null) {
 610                return null;
 611            } else {
 612                return new ScrollState(pos, view.getTop());
 613            }
 614        }
 615    }
 616
 617    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 618        if (scrollPosition != null) {
 619
 620            this.lastMessageUuid = lastMessageUuid;
 621            if (lastMessageUuid != null) {
 622                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 623            }
 624            //TODO maybe this needs a 'post'
 625            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 626            toggleScrollDownButton();
 627        }
 628    }
 629
 630    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 631        if (conversation == null) {
 632            return;
 633        }
 634        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 635
 636            @Override
 637            public void success(Message message) {
 638
 639            }
 640
 641            @Override
 642            public void error(int errorCode, Message object) {
 643                //TODO show possible pgp error
 644            }
 645
 646            @Override
 647            public void userInputRequired(PendingIntent pi, Message object) {
 648
 649            }
 650        });
 651    }
 652
 653    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 654        if (conversation == null) {
 655            return;
 656        }
 657        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 658        prepareFileToast.show();
 659        activity.delegateUriPermissionsToService(uri);
 660        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 661            @Override
 662            public void inform(final String text) {
 663                hidePrepareFileToast(prepareFileToast);
 664                runOnUiThread(() -> activity.replaceToast(text));
 665            }
 666
 667            @Override
 668            public void success(Message message) {
 669                runOnUiThread(() -> activity.hideToast());
 670                hidePrepareFileToast(prepareFileToast);
 671            }
 672
 673            @Override
 674            public void error(final int errorCode, Message message) {
 675                hidePrepareFileToast(prepareFileToast);
 676                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 677
 678            }
 679
 680            @Override
 681            public void userInputRequired(PendingIntent pi, Message message) {
 682                hidePrepareFileToast(prepareFileToast);
 683            }
 684        });
 685    }
 686
 687    public void attachEditorContentToConversation(Uri uri) {
 688        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 689        toggleInputMethod();
 690    }
 691
 692    private void attachImageToConversation(Conversation conversation, Uri uri) {
 693        if (conversation == null) {
 694            return;
 695        }
 696        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 697        prepareFileToast.show();
 698        activity.delegateUriPermissionsToService(uri);
 699        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 700                new UiCallback<Message>() {
 701
 702                    @Override
 703                    public void userInputRequired(PendingIntent pi, Message object) {
 704                        hidePrepareFileToast(prepareFileToast);
 705                    }
 706
 707                    @Override
 708                    public void success(Message message) {
 709                        hidePrepareFileToast(prepareFileToast);
 710                    }
 711
 712                    @Override
 713                    public void error(final int error, Message message) {
 714                        hidePrepareFileToast(prepareFileToast);
 715                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 716                    }
 717                });
 718    }
 719
 720    private void hidePrepareFileToast(final Toast prepareFileToast) {
 721        if (prepareFileToast != null && activity != null) {
 722            activity.runOnUiThread(prepareFileToast::cancel);
 723        }
 724    }
 725
 726    private void sendMessage() {
 727        if (mediaPreviewAdapter.hasAttachments()) {
 728            commitAttachments();
 729            return;
 730        }
 731        final Editable text = this.binding.textinput.getText();
 732        final String body = text == null ? "" : text.toString();
 733        final Conversation conversation = this.conversation;
 734        if (body.length() == 0 || conversation == null) {
 735            return;
 736        }
 737        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 738            return;
 739        }
 740        final Message message;
 741        if (conversation.getCorrectingMessage() == null) {
 742            message = new Message(conversation, body, conversation.getNextEncryption());
 743            Message.configurePrivateMessage(message);
 744        } else {
 745            message = conversation.getCorrectingMessage();
 746            message.setBody(body);
 747            message.putEdited(message.getUuid(), message.getServerMsgId());
 748            message.setServerMsgId(null);
 749            message.setUuid(UUID.randomUUID().toString());
 750        }
 751        switch (conversation.getNextEncryption()) {
 752            case Message.ENCRYPTION_PGP:
 753                sendPgpMessage(message);
 754                break;
 755            default:
 756                sendMessage(message);
 757        }
 758    }
 759
 760    protected boolean trustKeysIfNeeded(int requestCode) {
 761        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 762        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 763        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 764        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 765        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 766        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 767        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 768        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 769        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 770            axolotlService.createSessionsIfNeeded(conversation);
 771            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 772            String[] contacts = new String[targets.size()];
 773            for (int i = 0; i < contacts.length; ++i) {
 774                contacts[i] = targets.get(i).toString();
 775            }
 776            intent.putExtra("contacts", contacts);
 777            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toEscapedString());
 778            intent.putExtra("conversation", conversation.getUuid());
 779            startActivityForResult(intent, requestCode);
 780            return true;
 781        } else {
 782            return false;
 783        }
 784    }
 785
 786    public void updateChatMsgHint() {
 787        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 788        if (conversation.getCorrectingMessage() != null) {
 789            this.binding.textInputHint.setVisibility(View.GONE);
 790            this.binding.textinput.setHint(R.string.send_corrected_message);
 791        } else if (multi && conversation.getNextCounterpart() != null) {
 792            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 793            this.binding.textInputHint.setVisibility(View.VISIBLE);
 794            this.binding.textInputHint.setText(getString(
 795                    R.string.send_private_message_to,
 796                    conversation.getNextCounterpart().getResource()));
 797        } else if (multi && !conversation.getMucOptions().participating()) {
 798            this.binding.textInputHint.setVisibility(View.GONE);
 799            this.binding.textinput.setHint(R.string.you_are_not_participating);
 800        } else {
 801            this.binding.textInputHint.setVisibility(View.GONE);
 802            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 803            getActivity().invalidateOptionsMenu();
 804        }
 805    }
 806
 807    public void setupIme() {
 808        this.binding.textinput.refreshIme();
 809    }
 810
 811    private void handleActivityResult(ActivityResult activityResult) {
 812        if (activityResult.resultCode == Activity.RESULT_OK) {
 813            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 814        } else {
 815            handleNegativeActivityResult(activityResult.requestCode);
 816        }
 817    }
 818
 819    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 820        switch (requestCode) {
 821            case REQUEST_TRUST_KEYS_TEXT:
 822                sendMessage();
 823                break;
 824            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 825                commitAttachments();
 826                break;
 827            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 828                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 829                mediaPreviewAdapter.addMediaPreviews(imageUris);
 830                toggleInputMethod();
 831                break;
 832            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 833                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 834                if (takePhotoUri != null) {
 835                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 836                    toggleInputMethod();
 837                } else {
 838                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 839                }
 840                break;
 841            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 842            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 843            case ATTACHMENT_CHOICE_RECORD_VOICE:
 844                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 845                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 846                mediaPreviewAdapter.addMediaPreviews(fileUris);
 847                toggleInputMethod();
 848                break;
 849            case ATTACHMENT_CHOICE_LOCATION:
 850                double latitude = data.getDoubleExtra("latitude", 0);
 851                double longitude = data.getDoubleExtra("longitude", 0);
 852                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 853                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 854                toggleInputMethod();
 855                break;
 856            case REQUEST_INVITE_TO_CONVERSATION:
 857                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 858                if (invite != null) {
 859                    if (invite.execute(activity)) {
 860                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 861                        activity.mToast.show();
 862                    }
 863                }
 864                break;
 865        }
 866    }
 867
 868    private void commitAttachments() {
 869        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 870        if (anyNeedsExternalStoragePermission(attachments) && !hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 871            return;
 872        }
 873        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 874            return;
 875        }
 876        final PresenceSelector.OnPresenceSelected callback = () -> {
 877            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 878                final Attachment attachment = i.next();
 879                if (attachment.getType() == Attachment.Type.LOCATION) {
 880                    attachLocationToConversation(conversation, attachment.getUri());
 881                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 882                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 883                    attachImageToConversation(conversation, attachment.getUri());
 884                } else {
 885                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 886                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 887                }
 888            }
 889            mediaPreviewAdapter.notifyDataSetChanged();
 890            toggleInputMethod();
 891        };
 892        if (conversation == null
 893                || conversation.getMode() == Conversation.MODE_MULTI
 894                || Attachment.canBeSendInband(attachments)
 895                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 896            callback.onPresenceSelected();
 897        } else {
 898            activity.selectPresence(conversation, callback);
 899        }
 900    }
 901
 902
 903    private static boolean anyNeedsExternalStoragePermission(final Collection<Attachment> attachments) {
 904        for (final Attachment attachment : attachments) {
 905            if (attachment.getType() != Attachment.Type.LOCATION) {
 906                return true;
 907            }
 908        }
 909        return false;
 910    }
 911
 912    public void toggleInputMethod() {
 913        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 914        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 915        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 916        updateSendButton();
 917    }
 918
 919    private void handleNegativeActivityResult(int requestCode) {
 920        switch (requestCode) {
 921            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 922                if (pendingTakePhotoUri.clear()) {
 923                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 924                }
 925                break;
 926        }
 927    }
 928
 929    @Override
 930    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 931        super.onActivityResult(requestCode, resultCode, data);
 932        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 933        if (activity != null && activity.xmppConnectionService != null) {
 934            handleActivityResult(activityResult);
 935        } else {
 936            this.postponedActivityResult.push(activityResult);
 937        }
 938    }
 939
 940    public void unblockConversation(final Blockable conversation) {
 941        activity.xmppConnectionService.sendUnblockRequest(conversation);
 942    }
 943
 944    @Override
 945    public void onAttach(Activity activity) {
 946        super.onAttach(activity);
 947        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 948        if (activity instanceof ConversationsActivity) {
 949            this.activity = (ConversationsActivity) activity;
 950        } else {
 951            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 952        }
 953    }
 954
 955    @Override
 956    public void onDetach() {
 957        super.onDetach();
 958        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 959    }
 960
 961    @Override
 962    public void onCreate(Bundle savedInstanceState) {
 963        super.onCreate(savedInstanceState);
 964        setHasOptionsMenu(true);
 965    }
 966
 967    @Override
 968    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 969        menuInflater.inflate(R.menu.fragment_conversation, menu);
 970        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 971        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 972        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 973        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 974        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 975        final MenuItem menuCall = menu.findItem(R.id.action_call);
 976        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
 977        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 978        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
 979
 980
 981        if (conversation != null) {
 982            if (conversation.getMode() == Conversation.MODE_MULTI) {
 983                menuContactDetails.setVisible(false);
 984                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 985                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 986                menuCall.setVisible(false);
 987                menuOngoingCall.setVisible(false);
 988            } else {
 989                final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.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                final XmppConnectionService service = activity.xmppConnectionService;
1002                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
1003            }
1004            if (conversation.isMuted()) {
1005                menuMute.setVisible(false);
1006            } else {
1007                menuUnmute.setVisible(false);
1008            }
1009            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1010            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1011            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1012                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1013            } else {
1014                menuTogglePinned.setTitle(R.string.add_to_favorites);
1015            }
1016        }
1017        super.onCreateOptionsMenu(menu, menuInflater);
1018    }
1019
1020    @Override
1021    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1022        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1023        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
1024
1025        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
1026
1027        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1028        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1029
1030        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1031
1032        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1033        binding.messagesView.setOnScrollListener(mOnScrollListener);
1034        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1035        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1036        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1037        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1038        messageListAdapter.setOnContactPictureClicked(this);
1039        messageListAdapter.setOnContactPictureLongClicked(this);
1040        messageListAdapter.setOnQuoteListener(this::quoteText);
1041        binding.messagesView.setAdapter(messageListAdapter);
1042
1043        registerForContextMenu(binding.messagesView);
1044
1045        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1046            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1047        }
1048
1049        return binding.getRoot();
1050    }
1051
1052    private void quoteText(String text) {
1053        if (binding.textinput.isEnabled()) {
1054            binding.textinput.insertAsQuote(text);
1055            binding.textinput.requestFocus();
1056            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1057            if (inputMethodManager != null) {
1058                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1059            }
1060        }
1061    }
1062
1063    private void quoteMessage(Message message) {
1064        quoteText(MessageUtils.prepareQuote(message));
1065    }
1066
1067    @Override
1068    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1069        synchronized (this.messageList) {
1070            super.onCreateContextMenu(menu, v, menuInfo);
1071            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1072            this.selectedMessage = this.messageList.get(acmi.position);
1073            populateContextMenu(menu);
1074        }
1075    }
1076
1077    private void populateContextMenu(ContextMenu menu) {
1078        final Message m = this.selectedMessage;
1079        final Transferable t = m.getTransferable();
1080        Message relevantForCorrection = m;
1081        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1082            relevantForCorrection = relevantForCorrection.next();
1083        }
1084        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1085
1086            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1087                return;
1088            }
1089
1090            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1091                return;
1092            }
1093
1094            final boolean deleted = m.isDeleted();
1095            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1096                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1097            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1098            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1099            menu.setHeaderTitle(R.string.message_options);
1100            MenuItem openWith = menu.findItem(R.id.open_with);
1101            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1102            MenuItem copyLink = menu.findItem(R.id.copy_link);
1103            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1104            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1105            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1106            MenuItem shareWith = menu.findItem(R.id.share_with);
1107            MenuItem sendAgain = menu.findItem(R.id.send_again);
1108            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1109            MenuItem downloadFile = menu.findItem(R.id.download_file);
1110            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1111            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1112            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1113            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1114            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1115                copyMessage.setVisible(true);
1116                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1117                String body = m.getMergedBody().toString();
1118                if (ShareUtil.containsXmppUri(body)) {
1119                    copyLink.setTitle(R.string.copy_jabber_id);
1120                    copyLink.setVisible(true);
1121                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1122                    copyLink.setVisible(true);
1123                }
1124            }
1125            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1126                retryDecryption.setVisible(true);
1127            }
1128            if (!showError
1129                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1130                    && !m.isGeoUri()
1131                    && relevantForCorrection.isLastCorrectableMessage()
1132                    && m.getConversation() instanceof Conversation) {
1133                correctMessage.setVisible(true);
1134            }
1135            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1136                shareWith.setVisible(true);
1137            }
1138            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1139                sendAgain.setVisible(true);
1140            }
1141            if (m.hasFileOnRemoteHost()
1142                    || m.isGeoUri()
1143                    || m.treatAsDownloadable()
1144                    || t instanceof HttpDownloadConnection) {
1145                copyUrl.setVisible(true);
1146            }
1147            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1148                downloadFile.setVisible(true);
1149                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1150            }
1151            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1152                    || m.getStatus() == Message.STATUS_UNSEND
1153                    || m.getStatus() == Message.STATUS_OFFERED;
1154            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1155            if (cancelable) {
1156                cancelTransmission.setVisible(true);
1157            }
1158            if (m.isFileOrImage() && !deleted && !cancelable) {
1159                String path = m.getRelativeFilePath();
1160                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1161                    deleteFile.setVisible(true);
1162                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1163                }
1164            }
1165            if (showError) {
1166                showErrorMessage.setVisible(true);
1167            }
1168            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1169            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1170                openWith.setVisible(true);
1171            }
1172        }
1173    }
1174
1175    @Override
1176    public boolean onContextItemSelected(MenuItem item) {
1177        switch (item.getItemId()) {
1178            case R.id.share_with:
1179                ShareUtil.share(activity, selectedMessage);
1180                return true;
1181            case R.id.correct_message:
1182                correctMessage(selectedMessage);
1183                return true;
1184            case R.id.copy_message:
1185                ShareUtil.copyToClipboard(activity, selectedMessage);
1186                return true;
1187            case R.id.copy_link:
1188                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1189                return true;
1190            case R.id.quote_message:
1191                quoteMessage(selectedMessage);
1192                return true;
1193            case R.id.send_again:
1194                resendMessage(selectedMessage);
1195                return true;
1196            case R.id.copy_url:
1197                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1198                return true;
1199            case R.id.download_file:
1200                startDownloadable(selectedMessage);
1201                return true;
1202            case R.id.cancel_transmission:
1203                cancelTransmission(selectedMessage);
1204                return true;
1205            case R.id.retry_decryption:
1206                retryDecryption(selectedMessage);
1207                return true;
1208            case R.id.delete_file:
1209                deleteFile(selectedMessage);
1210                return true;
1211            case R.id.show_error_message:
1212                showErrorMessage(selectedMessage);
1213                return true;
1214            case R.id.open_with:
1215                openWith(selectedMessage);
1216                return true;
1217            default:
1218                return super.onContextItemSelected(item);
1219        }
1220    }
1221
1222    @Override
1223    public boolean onOptionsItemSelected(final MenuItem item) {
1224        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1225            return false;
1226        } else if (conversation == null) {
1227            return super.onOptionsItemSelected(item);
1228        }
1229        switch (item.getItemId()) {
1230            case R.id.encryption_choice_axolotl:
1231            case R.id.encryption_choice_pgp:
1232            case R.id.encryption_choice_none:
1233                handleEncryptionSelection(item);
1234                break;
1235            case R.id.attach_choose_picture:
1236            case R.id.attach_take_picture:
1237            case R.id.attach_record_video:
1238            case R.id.attach_choose_file:
1239            case R.id.attach_record_voice:
1240            case R.id.attach_location:
1241                handleAttachmentSelection(item);
1242                break;
1243            case R.id.action_archive:
1244                activity.xmppConnectionService.archiveConversation(conversation);
1245                break;
1246            case R.id.action_contact_details:
1247                activity.switchToContactDetails(conversation.getContact());
1248                break;
1249            case R.id.action_muc_details:
1250                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1251                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1252                intent.putExtra("uuid", conversation.getUuid());
1253                startActivity(intent);
1254                break;
1255            case R.id.action_invite:
1256                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1257                break;
1258            case R.id.action_clear_history:
1259                clearHistoryDialog(conversation);
1260                break;
1261            case R.id.action_mute:
1262                muteConversationDialog(conversation);
1263                break;
1264            case R.id.action_unmute:
1265                unmuteConversation(conversation);
1266                break;
1267            case R.id.action_block:
1268            case R.id.action_unblock:
1269                final Activity activity = getActivity();
1270                if (activity instanceof XmppActivity) {
1271                    BlockContactDialog.show((XmppActivity) activity, conversation);
1272                }
1273                break;
1274            case R.id.action_audio_call:
1275                checkPermissionAndTriggerAudioCall();
1276                break;
1277            case R.id.action_video_call:
1278                checkPermissionAndTriggerVideoCall();
1279                break;
1280            case R.id.action_ongoing_call:
1281                returnToOngoingCall();
1282                break;
1283            case R.id.action_toggle_pinned:
1284                togglePinned();
1285                break;
1286            default:
1287                break;
1288        }
1289        return super.onOptionsItemSelected(item);
1290    }
1291
1292    private void returnToOngoingCall() {
1293        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1294        if (ongoingRtpSession.isPresent()) {
1295            final OngoingRtpSession id = ongoingRtpSession.get();
1296            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1297            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1298            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1299            if (id instanceof AbstractJingleConnection.Id) {
1300                intent.setAction(Intent.ACTION_VIEW);
1301                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1302            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1303                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1304                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1305                } else {
1306                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1307                }
1308            }
1309            startActivity(intent);
1310        }
1311
1312    }
1313
1314    private void togglePinned() {
1315        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1316        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1317        activity.xmppConnectionService.updateConversation(conversation);
1318        activity.invalidateOptionsMenu();
1319    }
1320
1321    private void checkPermissionAndTriggerAudioCall() {
1322        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1323            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1324            return;
1325        }
1326        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1327            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1328        }
1329    }
1330
1331    private void checkPermissionAndTriggerVideoCall() {
1332        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1333            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1334            return;
1335        }
1336        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1337            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1338        }
1339    }
1340
1341
1342    private void triggerRtpSession(final String action) {
1343        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1344            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1345            return;
1346        }
1347
1348        final Contact contact = conversation.getContact();
1349        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1350            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1351        } else {
1352            final RtpCapability.Capability capability;
1353            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1354                capability = RtpCapability.Capability.VIDEO;
1355            } else {
1356                capability = RtpCapability.Capability.AUDIO;
1357            }
1358            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1359                triggerRtpSession(contact.getAccount(), fullJid, action);
1360            });
1361        }
1362    }
1363
1364    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1365        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1366        intent.setAction(action);
1367        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1368        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1369        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1370        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1371        startActivity(intent);
1372    }
1373
1374    private void handleAttachmentSelection(MenuItem item) {
1375        switch (item.getItemId()) {
1376            case R.id.attach_choose_picture:
1377                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1378                break;
1379            case R.id.attach_take_picture:
1380                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1381                break;
1382            case R.id.attach_record_video:
1383                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1384                break;
1385            case R.id.attach_choose_file:
1386                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1387                break;
1388            case R.id.attach_record_voice:
1389                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1390                break;
1391            case R.id.attach_location:
1392                attachFile(ATTACHMENT_CHOICE_LOCATION);
1393                break;
1394        }
1395    }
1396
1397    private void handleEncryptionSelection(MenuItem item) {
1398        if (conversation == null) {
1399            return;
1400        }
1401        final boolean updated;
1402        switch (item.getItemId()) {
1403            case R.id.encryption_choice_none:
1404                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1405                item.setChecked(true);
1406                break;
1407            case R.id.encryption_choice_pgp:
1408                if (activity.hasPgp()) {
1409                    if (conversation.getAccount().getPgpSignature() != null) {
1410                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1411                        item.setChecked(true);
1412                    } else {
1413                        updated = false;
1414                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1415                    }
1416                } else {
1417                    activity.showInstallPgpDialog();
1418                    updated = false;
1419                }
1420                break;
1421            case R.id.encryption_choice_axolotl:
1422                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1423                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1424                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1425                item.setChecked(true);
1426                break;
1427            default:
1428                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1429                break;
1430        }
1431        if (updated) {
1432            activity.xmppConnectionService.updateConversation(conversation);
1433        }
1434        updateChatMsgHint();
1435        getActivity().invalidateOptionsMenu();
1436        activity.refreshUi();
1437    }
1438
1439    public void attachFile(final int attachmentChoice) {
1440        attachFile(attachmentChoice, true);
1441    }
1442
1443    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1444        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1445            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1446                return;
1447            }
1448        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1449            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1450                return;
1451            }
1452        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1453            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1454                return;
1455            }
1456        }
1457        if (updateRecentlyUsed) {
1458            storeRecentlyUsedQuickAction(attachmentChoice);
1459        }
1460        final int encryption = conversation.getNextEncryption();
1461        final int mode = conversation.getMode();
1462        if (encryption == Message.ENCRYPTION_PGP) {
1463            if (activity.hasPgp()) {
1464                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1465                    activity.xmppConnectionService.getPgpEngine().hasKey(
1466                            conversation.getContact(),
1467                            new UiCallback<Contact>() {
1468
1469                                @Override
1470                                public void userInputRequired(PendingIntent pi, Contact contact) {
1471                                    startPendingIntent(pi, attachmentChoice);
1472                                }
1473
1474                                @Override
1475                                public void success(Contact contact) {
1476                                    invokeAttachFileIntent(attachmentChoice);
1477                                }
1478
1479                                @Override
1480                                public void error(int error, Contact contact) {
1481                                    activity.replaceToast(getString(error));
1482                                }
1483                            });
1484                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1485                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1486                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1487                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1488                        warning.show();
1489                    }
1490                    invokeAttachFileIntent(attachmentChoice);
1491                } else {
1492                    showNoPGPKeyDialog(false, (dialog, which) -> {
1493                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1494                        activity.xmppConnectionService.updateConversation(conversation);
1495                        invokeAttachFileIntent(attachmentChoice);
1496                    });
1497                }
1498            } else {
1499                activity.showInstallPgpDialog();
1500            }
1501        } else {
1502            invokeAttachFileIntent(attachmentChoice);
1503        }
1504    }
1505
1506    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1507        try {
1508            activity.getPreferences().edit()
1509                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1510                    .apply();
1511        } catch (IllegalArgumentException e) {
1512            //just do not save
1513        }
1514    }
1515
1516    @Override
1517    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1518        if (grantResults.length > 0) {
1519            if (allGranted(grantResults)) {
1520                switch (requestCode) {
1521                    case REQUEST_START_DOWNLOAD:
1522                        if (this.mPendingDownloadableMessage != null) {
1523                            startDownloadable(this.mPendingDownloadableMessage);
1524                        }
1525                        break;
1526                    case REQUEST_ADD_EDITOR_CONTENT:
1527                        if (this.mPendingEditorContent != null) {
1528                            attachEditorContentToConversation(this.mPendingEditorContent);
1529                        }
1530                        break;
1531                    case REQUEST_COMMIT_ATTACHMENTS:
1532                        commitAttachments();
1533                        break;
1534                    case REQUEST_START_AUDIO_CALL:
1535                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1536                        break;
1537                    case REQUEST_START_VIDEO_CALL:
1538                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1539                        break;
1540                    default:
1541                        attachFile(requestCode);
1542                        break;
1543                }
1544            } else {
1545                @StringRes int res;
1546                String firstDenied = getFirstDenied(grantResults, permissions);
1547                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1548                    res = R.string.no_microphone_permission;
1549                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1550                    res = R.string.no_camera_permission;
1551                } else {
1552                    res = R.string.no_storage_permission;
1553                }
1554                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1555            }
1556        }
1557        if (writeGranted(grantResults, permissions)) {
1558            if (activity != null && activity.xmppConnectionService != null) {
1559                activity.xmppConnectionService.restartFileObserver();
1560            }
1561            refresh();
1562        }
1563    }
1564
1565    public void startDownloadable(Message message) {
1566        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1567            this.mPendingDownloadableMessage = message;
1568            return;
1569        }
1570        Transferable transferable = message.getTransferable();
1571        if (transferable != null) {
1572            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1573                createNewConnection(message);
1574                return;
1575            }
1576            if (!transferable.start()) {
1577                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1578                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1579            }
1580        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1581            createNewConnection(message);
1582        } else {
1583            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1584        }
1585    }
1586
1587    private void createNewConnection(final Message message) {
1588        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1589            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1590            return;
1591        }
1592        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1593    }
1594
1595    @SuppressLint("InflateParams")
1596    protected void clearHistoryDialog(final Conversation conversation) {
1597        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1598        builder.setTitle(getString(R.string.clear_conversation_history));
1599        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1600        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1601        builder.setView(dialogView);
1602        builder.setNegativeButton(getString(R.string.cancel), null);
1603        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1604            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1605            if (endConversationCheckBox.isChecked()) {
1606                this.activity.xmppConnectionService.archiveConversation(conversation);
1607                this.activity.onConversationArchived(conversation);
1608            } else {
1609                activity.onConversationsListItemUpdated();
1610                refresh();
1611            }
1612        });
1613        builder.create().show();
1614    }
1615
1616    protected void muteConversationDialog(final Conversation conversation) {
1617        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1618        builder.setTitle(R.string.disable_notifications);
1619        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1620        final CharSequence[] labels = new CharSequence[durations.length];
1621        for (int i = 0; i < durations.length; ++i) {
1622            if (durations[i] == -1) {
1623                labels[i] = getString(R.string.until_further_notice);
1624            } else {
1625                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1626            }
1627        }
1628        builder.setItems(labels, (dialog, which) -> {
1629            final long till;
1630            if (durations[which] == -1) {
1631                till = Long.MAX_VALUE;
1632            } else {
1633                till = System.currentTimeMillis() + (durations[which] * 1000);
1634            }
1635            conversation.setMutedTill(till);
1636            activity.xmppConnectionService.updateConversation(conversation);
1637            activity.onConversationsListItemUpdated();
1638            refresh();
1639            getActivity().invalidateOptionsMenu();
1640        });
1641        builder.create().show();
1642    }
1643
1644    private boolean hasPermissions(int requestCode, String... permissions) {
1645        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1646            final List<String> missingPermissions = new ArrayList<>();
1647            for (String permission : permissions) {
1648                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1649                    continue;
1650                }
1651                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1652                    missingPermissions.add(permission);
1653                }
1654            }
1655            if (missingPermissions.size() == 0) {
1656                return true;
1657            } else {
1658                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1659                return false;
1660            }
1661        } else {
1662            return true;
1663        }
1664    }
1665
1666    public void unmuteConversation(final Conversation conversation) {
1667        conversation.setMutedTill(0);
1668        this.activity.xmppConnectionService.updateConversation(conversation);
1669        this.activity.onConversationsListItemUpdated();
1670        refresh();
1671        getActivity().invalidateOptionsMenu();
1672    }
1673
1674
1675    protected void invokeAttachFileIntent(final int attachmentChoice) {
1676        Intent intent = new Intent();
1677        boolean chooser = false;
1678        switch (attachmentChoice) {
1679            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1680                intent.setAction(Intent.ACTION_GET_CONTENT);
1681                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1682                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1683                }
1684                intent.setType("image/*");
1685                chooser = true;
1686                break;
1687            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1688                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1689                break;
1690            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1691                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1692                pendingTakePhotoUri.push(uri);
1693                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1694                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1695                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1696                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1697                break;
1698            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1699                chooser = true;
1700                intent.setType("*/*");
1701                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1702                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1703                }
1704                intent.addCategory(Intent.CATEGORY_OPENABLE);
1705                intent.setAction(Intent.ACTION_GET_CONTENT);
1706                break;
1707            case ATTACHMENT_CHOICE_RECORD_VOICE:
1708                intent = new Intent(getActivity(), RecordingActivity.class);
1709                break;
1710            case ATTACHMENT_CHOICE_LOCATION:
1711                intent = GeoHelper.getFetchIntent(activity);
1712                break;
1713        }
1714        final Context context = getActivity();
1715        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1716            if (chooser) {
1717                startActivityForResult(
1718                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1719                        attachmentChoice);
1720            } else {
1721                startActivityForResult(intent, attachmentChoice);
1722            }
1723        }
1724    }
1725
1726    @Override
1727    public void onResume() {
1728        super.onResume();
1729        binding.messagesView.post(this::fireReadEvent);
1730    }
1731
1732    private void fireReadEvent() {
1733        if (activity != null && this.conversation != null) {
1734            String uuid = getLastVisibleMessageUuid();
1735            if (uuid != null) {
1736                activity.onConversationRead(this.conversation, uuid);
1737            }
1738        }
1739    }
1740
1741    private String getLastVisibleMessageUuid() {
1742        if (binding == null) {
1743            return null;
1744        }
1745        synchronized (this.messageList) {
1746            int pos = binding.messagesView.getLastVisiblePosition();
1747            if (pos >= 0) {
1748                Message message = null;
1749                for (int i = pos; i >= 0; --i) {
1750                    try {
1751                        message = (Message) binding.messagesView.getItemAtPosition(i);
1752                    } catch (IndexOutOfBoundsException e) {
1753                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1754                        continue;
1755                    }
1756                    if (message.getType() != Message.TYPE_STATUS) {
1757                        break;
1758                    }
1759                }
1760                if (message != null) {
1761                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1762                        message = message.next();
1763                    }
1764                    return message.getUuid();
1765                }
1766            }
1767        }
1768        return null;
1769    }
1770
1771    private void openWith(final Message message) {
1772        if (message.isGeoUri()) {
1773            GeoHelper.view(getActivity(), message);
1774        } else {
1775            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1776            ViewUtil.view(activity, file);
1777        }
1778    }
1779
1780    private void showErrorMessage(final Message message) {
1781        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1782        builder.setTitle(R.string.error_message);
1783        final String errorMessage = message.getErrorMessage();
1784        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1785        final String displayError;
1786        if (errorMessageParts.length == 2) {
1787            displayError = errorMessageParts[1];
1788        } else {
1789            displayError = errorMessage;
1790        }
1791        builder.setMessage(displayError);
1792        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1793            activity.copyTextToClipboard(displayError, R.string.error_message);
1794            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1795        });
1796        builder.setPositiveButton(R.string.confirm, null);
1797        builder.create().show();
1798    }
1799
1800
1801    private void deleteFile(final Message message) {
1802        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1803        builder.setNegativeButton(R.string.cancel, null);
1804        builder.setTitle(R.string.delete_file_dialog);
1805        builder.setMessage(R.string.delete_file_dialog_msg);
1806        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1807            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1808                message.setDeleted(true);
1809                activity.xmppConnectionService.evictPreview(message.getUuid());
1810                activity.xmppConnectionService.updateMessage(message, false);
1811                activity.onConversationsListItemUpdated();
1812                refresh();
1813            }
1814        });
1815        builder.create().show();
1816
1817    }
1818
1819    private void resendMessage(final Message message) {
1820        if (message.isFileOrImage()) {
1821            if (!(message.getConversation() instanceof Conversation)) {
1822                return;
1823            }
1824            final Conversation conversation = (Conversation) message.getConversation();
1825            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1826            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1827                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1828                if (!message.hasFileOnRemoteHost()
1829                        && xmppConnection != null
1830                        && conversation.getMode() == Conversational.MODE_SINGLE
1831                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1832                    activity.selectPresence(conversation, () -> {
1833                        message.setCounterpart(conversation.getNextCounterpart());
1834                        activity.xmppConnectionService.resendFailedMessages(message);
1835                        new Handler().post(() -> {
1836                            int size = messageList.size();
1837                            this.binding.messagesView.setSelection(size - 1);
1838                        });
1839                    });
1840                    return;
1841                }
1842            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1843                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1844                return;
1845            } else {
1846                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1847                message.setDeleted(true);
1848                activity.xmppConnectionService.updateMessage(message, false);
1849                activity.onConversationsListItemUpdated();
1850                refresh();
1851                return;
1852            }
1853        }
1854        activity.xmppConnectionService.resendFailedMessages(message);
1855        new Handler().post(() -> {
1856            int size = messageList.size();
1857            this.binding.messagesView.setSelection(size - 1);
1858        });
1859    }
1860
1861    private void cancelTransmission(Message message) {
1862        Transferable transferable = message.getTransferable();
1863        if (transferable != null) {
1864            transferable.cancel();
1865        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1866            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1867        }
1868    }
1869
1870    private void retryDecryption(Message message) {
1871        message.setEncryption(Message.ENCRYPTION_PGP);
1872        activity.onConversationsListItemUpdated();
1873        refresh();
1874        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1875    }
1876
1877    public void privateMessageWith(final Jid counterpart) {
1878        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1879            activity.xmppConnectionService.sendChatState(conversation);
1880        }
1881        this.binding.textinput.setText("");
1882        this.conversation.setNextCounterpart(counterpart);
1883        updateChatMsgHint();
1884        updateSendButton();
1885        updateEditablity();
1886    }
1887
1888    private void correctMessage(Message message) {
1889        while (message.mergeable(message.next())) {
1890            message = message.next();
1891        }
1892        this.conversation.setCorrectingMessage(message);
1893        final Editable editable = binding.textinput.getText();
1894        this.conversation.setDraftMessage(editable.toString());
1895        this.binding.textinput.setText("");
1896        this.binding.textinput.append(message.getBody());
1897
1898    }
1899
1900    private void highlightInConference(String nick) {
1901        final Editable editable = this.binding.textinput.getText();
1902        String oldString = editable.toString().trim();
1903        final int pos = this.binding.textinput.getSelectionStart();
1904        if (oldString.isEmpty() || pos == 0) {
1905            editable.insert(0, nick + ": ");
1906        } else {
1907            final char before = editable.charAt(pos - 1);
1908            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1909            if (before == '\n') {
1910                editable.insert(pos, nick + ": ");
1911            } else {
1912                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1913                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1914                        editable.insert(pos - 2, ", " + nick);
1915                        return;
1916                    }
1917                }
1918                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1919                if (Character.isWhitespace(after)) {
1920                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1921                }
1922            }
1923        }
1924    }
1925
1926    @Override
1927    public void startActivityForResult(Intent intent, int requestCode) {
1928        final Activity activity = getActivity();
1929        if (activity instanceof ConversationsActivity) {
1930            ((ConversationsActivity) activity).clearPendingViewIntent();
1931        }
1932        super.startActivityForResult(intent, requestCode);
1933    }
1934
1935    @Override
1936    public void onSaveInstanceState(Bundle outState) {
1937        super.onSaveInstanceState(outState);
1938        if (conversation != null) {
1939            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1940            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1941            final Uri uri = pendingTakePhotoUri.peek();
1942            if (uri != null) {
1943                outState.putString(STATE_PHOTO_URI, uri.toString());
1944            }
1945            final ScrollState scrollState = getScrollPosition();
1946            if (scrollState != null) {
1947                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1948            }
1949            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1950            if (attachments.size() > 0) {
1951                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1952            }
1953        }
1954    }
1955
1956    @Override
1957    public void onActivityCreated(Bundle savedInstanceState) {
1958        super.onActivityCreated(savedInstanceState);
1959        if (savedInstanceState == null) {
1960            return;
1961        }
1962        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1963        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1964        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1965        if (uuid != null) {
1966            QuickLoader.set(uuid);
1967            this.pendingConversationsUuid.push(uuid);
1968            if (attachments != null && attachments.size() > 0) {
1969                this.pendingMediaPreviews.push(attachments);
1970            }
1971            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1972            if (takePhotoUri != null) {
1973                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1974            }
1975            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1976        }
1977    }
1978
1979    @Override
1980    public void onStart() {
1981        super.onStart();
1982        if (this.reInitRequiredOnStart && this.conversation != null) {
1983            final Bundle extras = pendingExtras.pop();
1984            reInit(this.conversation, extras != null);
1985            if (extras != null) {
1986                processExtras(extras);
1987            }
1988        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1989            final String uuid = pendingConversationsUuid.pop();
1990            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1991            if (uuid != null) {
1992                findAndReInitByUuidOrArchive(uuid);
1993            }
1994        }
1995    }
1996
1997    @Override
1998    public void onStop() {
1999        super.onStop();
2000        final Activity activity = getActivity();
2001        messageListAdapter.unregisterListenerInAudioPlayer();
2002        if (activity == null || !activity.isChangingConfigurations()) {
2003            hideSoftKeyboard(activity);
2004            messageListAdapter.stopAudioPlayer();
2005        }
2006        if (this.conversation != null) {
2007            final String msg = this.binding.textinput.getText().toString();
2008            storeNextMessage(msg);
2009            updateChatState(this.conversation, msg);
2010            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2011        }
2012        this.reInitRequiredOnStart = true;
2013    }
2014
2015    private void updateChatState(final Conversation conversation, final String msg) {
2016        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2017        Account.State status = conversation.getAccount().getStatus();
2018        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2019            activity.xmppConnectionService.sendChatState(conversation);
2020        }
2021    }
2022
2023    private void saveMessageDraftStopAudioPlayer() {
2024        final Conversation previousConversation = this.conversation;
2025        if (this.activity == null || this.binding == null || previousConversation == null) {
2026            return;
2027        }
2028        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2029        final String msg = this.binding.textinput.getText().toString();
2030        storeNextMessage(msg);
2031        updateChatState(this.conversation, msg);
2032        messageListAdapter.stopAudioPlayer();
2033        mediaPreviewAdapter.clearPreviews();
2034        toggleInputMethod();
2035    }
2036
2037    public void reInit(Conversation conversation, Bundle extras) {
2038        QuickLoader.set(conversation.getUuid());
2039        this.saveMessageDraftStopAudioPlayer();
2040        this.clearPending();
2041        if (this.reInit(conversation, extras != null)) {
2042            if (extras != null) {
2043                processExtras(extras);
2044            }
2045            this.reInitRequiredOnStart = false;
2046        } else {
2047            this.reInitRequiredOnStart = true;
2048            pendingExtras.push(extras);
2049        }
2050        resetUnreadMessagesCount();
2051    }
2052
2053    private void reInit(Conversation conversation) {
2054        reInit(conversation, false);
2055    }
2056
2057    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2058        if (conversation == null) {
2059            return false;
2060        }
2061        this.conversation = conversation;
2062        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2063        if (this.activity == null || this.binding == null) {
2064            return false;
2065        }
2066
2067        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2068            activity.onConversationArchived(this.conversation);
2069            return false;
2070        }
2071
2072        stopScrolling();
2073        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
2074
2075        if (this.conversation.isRead() && hasExtras) {
2076            Log.d(Config.LOGTAG, "trimming conversation");
2077            this.conversation.trim();
2078        }
2079
2080        setupIme();
2081
2082        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2083
2084        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2085        this.binding.textinput.setKeyboardListener(null);
2086        this.binding.textinput.setText("");
2087        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2088        if (participating) {
2089            this.binding.textinput.append(this.conversation.getNextMessage());
2090        }
2091        this.binding.textinput.setKeyboardListener(this);
2092        messageListAdapter.updatePreferences();
2093        refresh(false);
2094        this.conversation.messagesLoaded.set(true);
2095        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
2096
2097        if (hasExtras || scrolledToBottomAndNoPending) {
2098            resetUnreadMessagesCount();
2099            synchronized (this.messageList) {
2100                Log.d(Config.LOGTAG, "jump to first unread message");
2101                final Message first = conversation.getFirstUnreadMessage();
2102                final int bottom = Math.max(0, this.messageList.size() - 1);
2103                final int pos;
2104                final boolean jumpToBottom;
2105                if (first == null) {
2106                    pos = bottom;
2107                    jumpToBottom = true;
2108                } else {
2109                    int i = getIndexOf(first.getUuid(), this.messageList);
2110                    pos = i < 0 ? bottom : i;
2111                    jumpToBottom = false;
2112                }
2113                setSelection(pos, jumpToBottom);
2114            }
2115        }
2116
2117
2118        this.binding.messagesView.post(this::fireReadEvent);
2119        //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
2120        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2121        return true;
2122    }
2123
2124    private void resetUnreadMessagesCount() {
2125        lastMessageUuid = null;
2126        hideUnreadMessagesCount();
2127    }
2128
2129    private void hideUnreadMessagesCount() {
2130        if (this.binding == null) {
2131            return;
2132        }
2133        this.binding.scrollToBottomButton.setEnabled(false);
2134        this.binding.scrollToBottomButton.hide();
2135        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2136    }
2137
2138    private void setSelection(int pos, boolean jumpToBottom) {
2139        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2140        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2141        this.binding.messagesView.post(this::fireReadEvent);
2142    }
2143
2144
2145    private boolean scrolledToBottom() {
2146        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2147    }
2148
2149    private void processExtras(final Bundle extras) {
2150        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2151        final String text = extras.getString(Intent.EXTRA_TEXT);
2152        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2153        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2154        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2155        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2156        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2157        final List<Uri> uris = extractUris(extras);
2158        if (uris != null && uris.size() > 0) {
2159            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2160                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2161            } else {
2162                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2163                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2164            }
2165            toggleInputMethod();
2166            return;
2167        }
2168        if (nick != null) {
2169            if (pm) {
2170                Jid jid = conversation.getJid();
2171                try {
2172                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2173                    privateMessageWith(next);
2174                } catch (final IllegalArgumentException ignored) {
2175                    //do nothing
2176                }
2177            } else {
2178                final MucOptions mucOptions = conversation.getMucOptions();
2179                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2180                    highlightInConference(nick);
2181                }
2182            }
2183        } else {
2184            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2185                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2186                toggleInputMethod();
2187                return;
2188            } else if (text != null && asQuote) {
2189                quoteText(text);
2190            } else {
2191                appendText(text, doNotAppend);
2192            }
2193        }
2194        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2195            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2196            return;
2197        }
2198        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2199        if (message != null) {
2200            startDownloadable(message);
2201        }
2202    }
2203
2204    private List<Uri> extractUris(final Bundle extras) {
2205        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2206        if (uris != null) {
2207            return uris;
2208        }
2209        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2210        if (uri != null) {
2211            return Collections.singletonList(uri);
2212        } else {
2213            return null;
2214        }
2215    }
2216
2217    private List<Uri> cleanUris(final List<Uri> uris) {
2218        Iterator<Uri> iterator = uris.iterator();
2219        while (iterator.hasNext()) {
2220            final Uri uri = iterator.next();
2221            if (FileBackend.weOwnFile(getActivity(), uri)) {
2222                iterator.remove();
2223                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2224            }
2225        }
2226        return uris;
2227    }
2228
2229    private boolean showBlockSubmenu(View view) {
2230        final Jid jid = conversation.getJid();
2231        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2232        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2233        popupMenu.inflate(R.menu.block);
2234        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2235        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2236        popupMenu.setOnMenuItemClickListener(menuItem -> {
2237            Blockable blockable;
2238            switch (menuItem.getItemId()) {
2239                case R.id.reject:
2240                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2241                    updateSnackBar(conversation);
2242                    return true;
2243                case R.id.block_domain:
2244                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2245                    break;
2246                default:
2247                    blockable = conversation;
2248            }
2249            BlockContactDialog.show(activity, blockable);
2250            return true;
2251        });
2252        popupMenu.show();
2253        return true;
2254    }
2255
2256    private void updateSnackBar(final Conversation conversation) {
2257        final Account account = conversation.getAccount();
2258        final XmppConnection connection = account.getXmppConnection();
2259        final int mode = conversation.getMode();
2260        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2261        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2262            return;
2263        }
2264        if (account.getStatus() == Account.State.DISABLED) {
2265            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2266        } else if (conversation.isBlocked()) {
2267            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2268        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2269            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2270        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2271            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2272        } else if (mode == Conversation.MODE_MULTI
2273                && !conversation.getMucOptions().online()
2274                && account.getStatus() == Account.State.ONLINE) {
2275            switch (conversation.getMucOptions().getError()) {
2276                case NICK_IN_USE:
2277                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2278                    break;
2279                case NO_RESPONSE:
2280                    showSnackbar(R.string.joining_conference, 0, null);
2281                    break;
2282                case SERVER_NOT_FOUND:
2283                    if (conversation.receivedMessagesCount() > 0) {
2284                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2285                    } else {
2286                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2287                    }
2288                    break;
2289                case REMOTE_SERVER_TIMEOUT:
2290                    if (conversation.receivedMessagesCount() > 0) {
2291                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2292                    } else {
2293                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2294                    }
2295                    break;
2296                case PASSWORD_REQUIRED:
2297                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2298                    break;
2299                case BANNED:
2300                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2301                    break;
2302                case MEMBERS_ONLY:
2303                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2304                    break;
2305                case RESOURCE_CONSTRAINT:
2306                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2307                    break;
2308                case KICKED:
2309                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2310                    break;
2311                case UNKNOWN:
2312                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2313                    break;
2314                case INVALID_NICK:
2315                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2316                case SHUTDOWN:
2317                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2318                    break;
2319                case DESTROYED:
2320                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2321                    break;
2322                case NON_ANONYMOUS:
2323                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2324                    break;
2325                default:
2326                    hideSnackbar();
2327                    break;
2328            }
2329        } else if (account.hasPendingPgpIntent(conversation)) {
2330            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2331        } else if (connection != null
2332                && connection.getFeatures().blocking()
2333                && conversation.countMessages() != 0
2334                && !conversation.isBlocked()
2335                && conversation.isWithStranger()) {
2336            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2337        } else {
2338            hideSnackbar();
2339        }
2340    }
2341
2342    @Override
2343    public void refresh() {
2344        if (this.binding == null) {
2345            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2346            return;
2347        }
2348        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2349            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2350                activity.onConversationArchived(this.conversation);
2351                return;
2352            }
2353        }
2354        this.refresh(true);
2355    }
2356
2357    private void refresh(boolean notifyConversationRead) {
2358        synchronized (this.messageList) {
2359            if (this.conversation != null) {
2360                conversation.populateWithMessages(this.messageList);
2361                updateSnackBar(conversation);
2362                updateStatusMessages();
2363                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2364                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2365                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2366                }
2367                this.messageListAdapter.notifyDataSetChanged();
2368                updateChatMsgHint();
2369                if (notifyConversationRead && activity != null) {
2370                    binding.messagesView.post(this::fireReadEvent);
2371                }
2372                updateSendButton();
2373                updateEditablity();
2374                activity.invalidateOptionsMenu();
2375            }
2376        }
2377    }
2378
2379    protected void messageSent() {
2380        mSendingPgpMessage.set(false);
2381        this.binding.textinput.setText("");
2382        if (conversation.setCorrectingMessage(null)) {
2383            this.binding.textinput.append(conversation.getDraftMessage());
2384            conversation.setDraftMessage(null);
2385        }
2386        storeNextMessage();
2387        updateChatMsgHint();
2388        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2389        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2390        if (prefScrollToBottom || scrolledToBottom()) {
2391            new Handler().post(() -> {
2392                int size = messageList.size();
2393                this.binding.messagesView.setSelection(size - 1);
2394            });
2395        }
2396    }
2397
2398    private boolean storeNextMessage() {
2399        return storeNextMessage(this.binding.textinput.getText().toString());
2400    }
2401
2402    private boolean storeNextMessage(String msg) {
2403        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2404        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2405            this.activity.xmppConnectionService.updateConversation(this.conversation);
2406            return true;
2407        }
2408        return false;
2409    }
2410
2411    public void doneSendingPgpMessage() {
2412        mSendingPgpMessage.set(false);
2413    }
2414
2415    public long getMaxHttpUploadSize(Conversation conversation) {
2416        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2417        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2418    }
2419
2420    private void updateEditablity() {
2421        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2422        this.binding.textinput.setFocusable(canWrite);
2423        this.binding.textinput.setFocusableInTouchMode(canWrite);
2424        this.binding.textSendButton.setEnabled(canWrite);
2425        this.binding.textinput.setCursorVisible(canWrite);
2426        this.binding.textinput.setEnabled(canWrite);
2427    }
2428
2429    public void updateSendButton() {
2430        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2431        final Conversation c = this.conversation;
2432        final Presence.Status status;
2433        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2434        final SendButtonAction action;
2435        if (hasAttachments) {
2436            action = SendButtonAction.TEXT;
2437        } else {
2438            action = SendButtonTool.getAction(getActivity(), c, text);
2439        }
2440        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2441            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2442                status = Presence.Status.OFFLINE;
2443            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2444                status = c.getContact().getShownStatus();
2445            } else {
2446                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2447            }
2448        } else {
2449            status = Presence.Status.OFFLINE;
2450        }
2451        this.binding.textSendButton.setTag(action);
2452        final Activity activity = getActivity();
2453        if (activity != null) {
2454            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2455        }
2456    }
2457
2458    protected void updateStatusMessages() {
2459        DateSeparator.addAll(this.messageList);
2460        if (showLoadMoreMessages(conversation)) {
2461            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2462        }
2463        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2464            ChatState state = conversation.getIncomingChatState();
2465            if (state == ChatState.COMPOSING) {
2466                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2467            } else if (state == ChatState.PAUSED) {
2468                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2469            } else {
2470                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2471                    final Message message = this.messageList.get(i);
2472                    if (message.getType() != Message.TYPE_STATUS) {
2473                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2474                            return;
2475                        } else {
2476                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2477                                this.messageList.add(i + 1,
2478                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2479                                return;
2480                            }
2481                        }
2482                    }
2483                }
2484            }
2485        } else {
2486            final MucOptions mucOptions = conversation.getMucOptions();
2487            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2488            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2489            ChatState state = ChatState.COMPOSING;
2490            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2491            if (users.size() == 0) {
2492                state = ChatState.PAUSED;
2493                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2494            }
2495            if (mucOptions.isPrivateAndNonAnonymous()) {
2496                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2497                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2498                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2499                    for (ReadByMarker marker : markersForMessage) {
2500                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2501                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2502                            MucOptions.User user = mucOptions.findUser(marker);
2503                            if (user != null && !users.contains(user)) {
2504                                shownMarkers.add(user);
2505                            }
2506                        }
2507                    }
2508                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2509                    final Message statusMessage;
2510                    final int size = shownMarkers.size();
2511                    if (size > 1) {
2512                        final String body;
2513                        if (size <= 4) {
2514                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2515                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2516                            body = getString(R.string.everyone_has_read_up_to_this_point);
2517                        } else {
2518                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2519                        }
2520                        statusMessage = Message.createStatusMessage(conversation, body);
2521                        statusMessage.setCounterparts(shownMarkers);
2522                    } else if (size == 1) {
2523                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2524                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2525                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2526                    } else {
2527                        statusMessage = null;
2528                    }
2529                    if (statusMessage != null) {
2530                        this.messageList.add(i + 1, statusMessage);
2531                    }
2532                    addedMarkers.add(markerForSender);
2533                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2534                        break;
2535                    }
2536                }
2537            }
2538            if (users.size() > 0) {
2539                Message statusMessage;
2540                if (users.size() == 1) {
2541                    MucOptions.User user = users.get(0);
2542                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2543                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2544                    statusMessage.setTrueCounterpart(user.getRealJid());
2545                    statusMessage.setCounterpart(user.getFullJid());
2546                } else {
2547                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2548                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2549                    statusMessage.setCounterparts(users);
2550                }
2551                this.messageList.add(statusMessage);
2552            }
2553
2554        }
2555    }
2556
2557    private void stopScrolling() {
2558        long now = SystemClock.uptimeMillis();
2559        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2560        binding.messagesView.dispatchTouchEvent(cancel);
2561    }
2562
2563    private boolean showLoadMoreMessages(final Conversation c) {
2564        if (activity == null || activity.xmppConnectionService == null) {
2565            return false;
2566        }
2567        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2568        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2569        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2570    }
2571
2572    private boolean hasMamSupport(final Conversation c) {
2573        if (c.getMode() == Conversation.MODE_SINGLE) {
2574            final XmppConnection connection = c.getAccount().getXmppConnection();
2575            return connection != null && connection.getFeatures().mam();
2576        } else {
2577            return c.getMucOptions().mamSupport();
2578        }
2579    }
2580
2581    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2582        showSnackbar(message, action, clickListener, null);
2583    }
2584
2585    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2586        this.binding.snackbar.setVisibility(View.VISIBLE);
2587        this.binding.snackbar.setOnClickListener(null);
2588        this.binding.snackbarMessage.setText(message);
2589        this.binding.snackbarMessage.setOnClickListener(null);
2590        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2591        if (action != 0) {
2592            this.binding.snackbarAction.setText(action);
2593        }
2594        this.binding.snackbarAction.setOnClickListener(clickListener);
2595        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2596    }
2597
2598    protected void hideSnackbar() {
2599        this.binding.snackbar.setVisibility(View.GONE);
2600    }
2601
2602    protected void sendMessage(Message message) {
2603        activity.xmppConnectionService.sendMessage(message);
2604        messageSent();
2605    }
2606
2607    protected void sendPgpMessage(final Message message) {
2608        final XmppConnectionService xmppService = activity.xmppConnectionService;
2609        final Contact contact = message.getConversation().getContact();
2610        if (!activity.hasPgp()) {
2611            activity.showInstallPgpDialog();
2612            return;
2613        }
2614        if (conversation.getAccount().getPgpSignature() == null) {
2615            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2616            return;
2617        }
2618        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2619            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2620        }
2621        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2622            if (contact.getPgpKeyId() != 0) {
2623                xmppService.getPgpEngine().hasKey(contact,
2624                        new UiCallback<Contact>() {
2625
2626                            @Override
2627                            public void userInputRequired(PendingIntent pi, Contact contact) {
2628                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2629                            }
2630
2631                            @Override
2632                            public void success(Contact contact) {
2633                                encryptTextMessage(message);
2634                            }
2635
2636                            @Override
2637                            public void error(int error, Contact contact) {
2638                                activity.runOnUiThread(() -> Toast.makeText(activity,
2639                                        R.string.unable_to_connect_to_keychain,
2640                                        Toast.LENGTH_SHORT
2641                                ).show());
2642                                mSendingPgpMessage.set(false);
2643                            }
2644                        });
2645
2646            } else {
2647                showNoPGPKeyDialog(false, (dialog, which) -> {
2648                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2649                    xmppService.updateConversation(conversation);
2650                    message.setEncryption(Message.ENCRYPTION_NONE);
2651                    xmppService.sendMessage(message);
2652                    messageSent();
2653                });
2654            }
2655        } else {
2656            if (conversation.getMucOptions().pgpKeysInUse()) {
2657                if (!conversation.getMucOptions().everybodyHasKeys()) {
2658                    Toast warning = Toast
2659                            .makeText(getActivity(),
2660                                    R.string.missing_public_keys,
2661                                    Toast.LENGTH_LONG);
2662                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2663                    warning.show();
2664                }
2665                encryptTextMessage(message);
2666            } else {
2667                showNoPGPKeyDialog(true, (dialog, which) -> {
2668                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2669                    message.setEncryption(Message.ENCRYPTION_NONE);
2670                    xmppService.updateConversation(conversation);
2671                    xmppService.sendMessage(message);
2672                    messageSent();
2673                });
2674            }
2675        }
2676    }
2677
2678    public void encryptTextMessage(Message message) {
2679        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2680                new UiCallback<Message>() {
2681
2682                    @Override
2683                    public void userInputRequired(PendingIntent pi, Message message) {
2684                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2685                    }
2686
2687                    @Override
2688                    public void success(Message message) {
2689                        //TODO the following two call can be made before the callback
2690                        getActivity().runOnUiThread(() -> messageSent());
2691                    }
2692
2693                    @Override
2694                    public void error(final int error, Message message) {
2695                        getActivity().runOnUiThread(() -> {
2696                            doneSendingPgpMessage();
2697                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2698                        });
2699
2700                    }
2701                });
2702    }
2703
2704    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2705        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2706        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2707        if (plural) {
2708            builder.setTitle(getString(R.string.no_pgp_keys));
2709            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2710        } else {
2711            builder.setTitle(getString(R.string.no_pgp_key));
2712            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2713        }
2714        builder.setNegativeButton(getString(R.string.cancel), null);
2715        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2716        builder.create().show();
2717    }
2718
2719    public void appendText(String text, final boolean doNotAppend) {
2720        if (text == null) {
2721            return;
2722        }
2723        final Editable editable = this.binding.textinput.getText();
2724        String previous = editable == null ? "" : editable.toString();
2725        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2726            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2727            return;
2728        }
2729        if (UIHelper.isLastLineQuote(previous)) {
2730            text = '\n' + text;
2731        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2732            text = " " + text;
2733        }
2734        this.binding.textinput.append(text);
2735    }
2736
2737    @Override
2738    public boolean onEnterPressed(KeyEvent event) {
2739        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2740        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2741        if (enterIsSend || event.isCtrlPressed()) {
2742            sendMessage();
2743            return true;
2744        } else {
2745            return false;
2746        }
2747    }
2748
2749    @Override
2750    public void onTypingStarted() {
2751        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2752        if (service == null) {
2753            return;
2754        }
2755        Account.State status = conversation.getAccount().getStatus();
2756        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2757            service.sendChatState(conversation);
2758        }
2759        runOnUiThread(this::updateSendButton);
2760    }
2761
2762    @Override
2763    public void onTypingStopped() {
2764        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2765        if (service == null) {
2766            return;
2767        }
2768        Account.State status = conversation.getAccount().getStatus();
2769        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2770            service.sendChatState(conversation);
2771        }
2772    }
2773
2774    @Override
2775    public void onTextDeleted() {
2776        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2777        if (service == null) {
2778            return;
2779        }
2780        Account.State status = conversation.getAccount().getStatus();
2781        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2782            service.sendChatState(conversation);
2783        }
2784        if (storeNextMessage()) {
2785            runOnUiThread(() -> {
2786                if (activity == null) {
2787                    return;
2788                }
2789                activity.onConversationsListItemUpdated();
2790            });
2791        }
2792        runOnUiThread(this::updateSendButton);
2793    }
2794
2795    @Override
2796    public void onTextChanged() {
2797        if (conversation != null && conversation.getCorrectingMessage() != null) {
2798            runOnUiThread(this::updateSendButton);
2799        }
2800    }
2801
2802    @Override
2803    public boolean onTabPressed(boolean repeated) {
2804        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2805            return false;
2806        }
2807        if (repeated) {
2808            completionIndex++;
2809        } else {
2810            lastCompletionLength = 0;
2811            completionIndex = 0;
2812            final String content = this.binding.textinput.getText().toString();
2813            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2814            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2815            firstWord = start == 0;
2816            incomplete = content.substring(start, lastCompletionCursor);
2817        }
2818        List<String> completions = new ArrayList<>();
2819        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2820            String name = user.getName();
2821            if (name != null && name.startsWith(incomplete)) {
2822                completions.add(name + (firstWord ? ": " : " "));
2823            }
2824        }
2825        Collections.sort(completions);
2826        if (completions.size() > completionIndex) {
2827            String completion = completions.get(completionIndex).substring(incomplete.length());
2828            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2829            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2830            lastCompletionLength = completion.length();
2831        } else {
2832            completionIndex = -1;
2833            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2834            lastCompletionLength = 0;
2835        }
2836        return true;
2837    }
2838
2839    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2840        try {
2841            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2842        } catch (final SendIntentException ignored) {
2843        }
2844    }
2845
2846    @Override
2847    public void onBackendConnected() {
2848        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2849        String uuid = pendingConversationsUuid.pop();
2850        if (uuid != null) {
2851            if (!findAndReInitByUuidOrArchive(uuid)) {
2852                return;
2853            }
2854        } else {
2855            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2856                clearPending();
2857                activity.onConversationArchived(conversation);
2858                return;
2859            }
2860        }
2861        ActivityResult activityResult = postponedActivityResult.pop();
2862        if (activityResult != null) {
2863            handleActivityResult(activityResult);
2864        }
2865        clearPending();
2866    }
2867
2868    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2869        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2870        if (conversation == null) {
2871            clearPending();
2872            activity.onConversationArchived(null);
2873            return false;
2874        }
2875        reInit(conversation);
2876        ScrollState scrollState = pendingScrollState.pop();
2877        String lastMessageUuid = pendingLastMessageUuid.pop();
2878        List<Attachment> attachments = pendingMediaPreviews.pop();
2879        if (scrollState != null) {
2880            setScrollPosition(scrollState, lastMessageUuid);
2881        }
2882        if (attachments != null && attachments.size() > 0) {
2883            Log.d(Config.LOGTAG, "had attachments on restore");
2884            mediaPreviewAdapter.addMediaPreviews(attachments);
2885            toggleInputMethod();
2886        }
2887        return true;
2888    }
2889
2890    private void clearPending() {
2891        if (postponedActivityResult.clear()) {
2892            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2893            if (pendingTakePhotoUri.clear()) {
2894                Log.e(Config.LOGTAG, "cleared pending photo uri");
2895            }
2896        }
2897        if (pendingScrollState.clear()) {
2898            Log.e(Config.LOGTAG, "cleared scroll state");
2899        }
2900        if (pendingConversationsUuid.clear()) {
2901            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2902        }
2903        if (pendingMediaPreviews.clear()) {
2904            Log.e(Config.LOGTAG, "cleared pending media previews");
2905        }
2906    }
2907
2908    public Conversation getConversation() {
2909        return conversation;
2910    }
2911
2912    @Override
2913    public void onContactPictureLongClicked(View v, final Message message) {
2914        final String fingerprint;
2915        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2916            fingerprint = "pgp";
2917        } else {
2918            fingerprint = message.getFingerprint();
2919        }
2920        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2921        final Contact contact = message.getContact();
2922        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2923            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2924                final Jid cp = message.getCounterpart();
2925                if (cp == null || cp.isBareJid()) {
2926                    return;
2927                }
2928                final Jid tcp = message.getTrueCounterpart();
2929                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2930                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2931                popupMenu.inflate(R.menu.muc_details_context);
2932                final Menu menu = popupMenu.getMenu();
2933                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2934                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2935            } else {
2936                popupMenu.inflate(R.menu.one_on_one_context);
2937                popupMenu.setOnMenuItemClickListener(item -> {
2938                    switch (item.getItemId()) {
2939                        case R.id.action_contact_details:
2940                            activity.switchToContactDetails(message.getContact(), fingerprint);
2941                            break;
2942                        case R.id.action_show_qr_code:
2943                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2944                            break;
2945                    }
2946                    return true;
2947                });
2948            }
2949        } else {
2950            popupMenu.inflate(R.menu.account_context);
2951            final Menu menu = popupMenu.getMenu();
2952            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2953            popupMenu.setOnMenuItemClickListener(item -> {
2954                switch (item.getItemId()) {
2955                    case R.id.action_show_qr_code:
2956                        activity.showQrCode(conversation.getAccount().getShareableUri());
2957                        break;
2958                    case R.id.action_account_details:
2959                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2960                        break;
2961                    case R.id.action_manage_accounts:
2962                        AccountUtils.launchManageAccounts(activity);
2963                        break;
2964                }
2965                return true;
2966            });
2967        }
2968        popupMenu.show();
2969    }
2970
2971    @Override
2972    public void onContactPictureClicked(Message message) {
2973        String fingerprint;
2974        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2975            fingerprint = "pgp";
2976        } else {
2977            fingerprint = message.getFingerprint();
2978        }
2979        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2980        if (received) {
2981            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2982                Jid tcp = message.getTrueCounterpart();
2983                Jid user = message.getCounterpart();
2984                if (user != null && !user.isBareJid()) {
2985                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2986                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2987                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2988                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2989                        }
2990                        highlightInConference(user.getResource());
2991                    } else {
2992                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2993                    }
2994                }
2995                return;
2996            } else {
2997                if (!message.getContact().isSelf()) {
2998                    activity.switchToContactDetails(message.getContact(), fingerprint);
2999                    return;
3000                }
3001            }
3002        }
3003        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3004    }
3005}