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    @Override
1053    public void onDestroyView() {
1054        super.onDestroyView();
1055        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1056        messageListAdapter.setOnContactPictureClicked(null);
1057        messageListAdapter.setOnContactPictureLongClicked(null);
1058        messageListAdapter.setOnQuoteListener(null);
1059    }
1060
1061    private void quoteText(String text) {
1062        if (binding.textinput.isEnabled()) {
1063            binding.textinput.insertAsQuote(text);
1064            binding.textinput.requestFocus();
1065            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1066            if (inputMethodManager != null) {
1067                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1068            }
1069        }
1070    }
1071
1072    private void quoteMessage(Message message) {
1073        quoteText(MessageUtils.prepareQuote(message));
1074    }
1075
1076    @Override
1077    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1078        synchronized (this.messageList) {
1079            super.onCreateContextMenu(menu, v, menuInfo);
1080            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1081            this.selectedMessage = this.messageList.get(acmi.position);
1082            populateContextMenu(menu);
1083        }
1084    }
1085
1086    private void populateContextMenu(ContextMenu menu) {
1087        final Message m = this.selectedMessage;
1088        final Transferable t = m.getTransferable();
1089        Message relevantForCorrection = m;
1090        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1091            relevantForCorrection = relevantForCorrection.next();
1092        }
1093        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1094
1095            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1096                return;
1097            }
1098
1099            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1100                return;
1101            }
1102
1103            final boolean deleted = m.isDeleted();
1104            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1105                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1106            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1107            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1108            menu.setHeaderTitle(R.string.message_options);
1109            MenuItem openWith = menu.findItem(R.id.open_with);
1110            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1111            MenuItem copyLink = menu.findItem(R.id.copy_link);
1112            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1113            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1114            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1115            MenuItem shareWith = menu.findItem(R.id.share_with);
1116            MenuItem sendAgain = menu.findItem(R.id.send_again);
1117            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1118            MenuItem downloadFile = menu.findItem(R.id.download_file);
1119            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1120            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1121            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1122            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1123            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1124                copyMessage.setVisible(true);
1125                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1126                String body = m.getMergedBody().toString();
1127                if (ShareUtil.containsXmppUri(body)) {
1128                    copyLink.setTitle(R.string.copy_jabber_id);
1129                    copyLink.setVisible(true);
1130                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1131                    copyLink.setVisible(true);
1132                }
1133            }
1134            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1135                retryDecryption.setVisible(true);
1136            }
1137            if (!showError
1138                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1139                    && !m.isGeoUri()
1140                    && relevantForCorrection.isLastCorrectableMessage()
1141                    && m.getConversation() instanceof Conversation) {
1142                correctMessage.setVisible(true);
1143            }
1144            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1145                shareWith.setVisible(true);
1146            }
1147            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1148                sendAgain.setVisible(true);
1149            }
1150            if (m.hasFileOnRemoteHost()
1151                    || m.isGeoUri()
1152                    || m.treatAsDownloadable()
1153                    || t instanceof HttpDownloadConnection) {
1154                copyUrl.setVisible(true);
1155            }
1156            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1157                downloadFile.setVisible(true);
1158                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1159            }
1160            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1161                    || m.getStatus() == Message.STATUS_UNSEND
1162                    || m.getStatus() == Message.STATUS_OFFERED;
1163            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1164            if (cancelable) {
1165                cancelTransmission.setVisible(true);
1166            }
1167            if (m.isFileOrImage() && !deleted && !cancelable) {
1168                String path = m.getRelativeFilePath();
1169                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1170                    deleteFile.setVisible(true);
1171                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1172                }
1173            }
1174            if (showError) {
1175                showErrorMessage.setVisible(true);
1176            }
1177            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1178            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1179                openWith.setVisible(true);
1180            }
1181        }
1182    }
1183
1184    @Override
1185    public boolean onContextItemSelected(MenuItem item) {
1186        switch (item.getItemId()) {
1187            case R.id.share_with:
1188                ShareUtil.share(activity, selectedMessage);
1189                return true;
1190            case R.id.correct_message:
1191                correctMessage(selectedMessage);
1192                return true;
1193            case R.id.copy_message:
1194                ShareUtil.copyToClipboard(activity, selectedMessage);
1195                return true;
1196            case R.id.copy_link:
1197                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1198                return true;
1199            case R.id.quote_message:
1200                quoteMessage(selectedMessage);
1201                return true;
1202            case R.id.send_again:
1203                resendMessage(selectedMessage);
1204                return true;
1205            case R.id.copy_url:
1206                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1207                return true;
1208            case R.id.download_file:
1209                startDownloadable(selectedMessage);
1210                return true;
1211            case R.id.cancel_transmission:
1212                cancelTransmission(selectedMessage);
1213                return true;
1214            case R.id.retry_decryption:
1215                retryDecryption(selectedMessage);
1216                return true;
1217            case R.id.delete_file:
1218                deleteFile(selectedMessage);
1219                return true;
1220            case R.id.show_error_message:
1221                showErrorMessage(selectedMessage);
1222                return true;
1223            case R.id.open_with:
1224                openWith(selectedMessage);
1225                return true;
1226            default:
1227                return super.onContextItemSelected(item);
1228        }
1229    }
1230
1231    @Override
1232    public boolean onOptionsItemSelected(final MenuItem item) {
1233        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1234            return false;
1235        } else if (conversation == null) {
1236            return super.onOptionsItemSelected(item);
1237        }
1238        switch (item.getItemId()) {
1239            case R.id.encryption_choice_axolotl:
1240            case R.id.encryption_choice_pgp:
1241            case R.id.encryption_choice_none:
1242                handleEncryptionSelection(item);
1243                break;
1244            case R.id.attach_choose_picture:
1245            case R.id.attach_take_picture:
1246            case R.id.attach_record_video:
1247            case R.id.attach_choose_file:
1248            case R.id.attach_record_voice:
1249            case R.id.attach_location:
1250                handleAttachmentSelection(item);
1251                break;
1252            case R.id.action_search:
1253                startSearch();
1254                break;
1255            case R.id.action_archive:
1256                activity.xmppConnectionService.archiveConversation(conversation);
1257                break;
1258            case R.id.action_contact_details:
1259                activity.switchToContactDetails(conversation.getContact());
1260                break;
1261            case R.id.action_muc_details:
1262                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1263                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1264                intent.putExtra("uuid", conversation.getUuid());
1265                startActivity(intent);
1266                break;
1267            case R.id.action_invite:
1268                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1269                break;
1270            case R.id.action_clear_history:
1271                clearHistoryDialog(conversation);
1272                break;
1273            case R.id.action_mute:
1274                muteConversationDialog(conversation);
1275                break;
1276            case R.id.action_unmute:
1277                unmuteConversation(conversation);
1278                break;
1279            case R.id.action_block:
1280            case R.id.action_unblock:
1281                final Activity activity = getActivity();
1282                if (activity instanceof XmppActivity) {
1283                    BlockContactDialog.show((XmppActivity) activity, conversation);
1284                }
1285                break;
1286            case R.id.action_audio_call:
1287                checkPermissionAndTriggerAudioCall();
1288                break;
1289            case R.id.action_video_call:
1290                checkPermissionAndTriggerVideoCall();
1291                break;
1292            case R.id.action_ongoing_call:
1293                returnToOngoingCall();
1294                break;
1295            case R.id.action_toggle_pinned:
1296                togglePinned();
1297                break;
1298            default:
1299                break;
1300        }
1301        return super.onOptionsItemSelected(item);
1302    }
1303
1304    private void startSearch() {
1305        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1306        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1307        startActivity(intent);
1308    }
1309
1310    private void returnToOngoingCall() {
1311        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1312        if (ongoingRtpSession.isPresent()) {
1313            final OngoingRtpSession id = ongoingRtpSession.get();
1314            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1315            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1316            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1317            if (id instanceof AbstractJingleConnection.Id) {
1318                intent.setAction(Intent.ACTION_VIEW);
1319                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1320            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1321                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1322                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1323                } else {
1324                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1325                }
1326            }
1327            startActivity(intent);
1328        }
1329
1330    }
1331
1332    private void togglePinned() {
1333        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1334        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1335        activity.xmppConnectionService.updateConversation(conversation);
1336        activity.invalidateOptionsMenu();
1337    }
1338
1339    private void checkPermissionAndTriggerAudioCall() {
1340        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1341            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1342            return;
1343        }
1344        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1345            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1346        }
1347    }
1348
1349    private void checkPermissionAndTriggerVideoCall() {
1350        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1351            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1352            return;
1353        }
1354        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1355            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1356        }
1357    }
1358
1359
1360    private void triggerRtpSession(final String action) {
1361        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1362            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1363            return;
1364        }
1365
1366        final Contact contact = conversation.getContact();
1367        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1368            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1369        } else {
1370            final RtpCapability.Capability capability;
1371            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1372                capability = RtpCapability.Capability.VIDEO;
1373            } else {
1374                capability = RtpCapability.Capability.AUDIO;
1375            }
1376            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1377                triggerRtpSession(contact.getAccount(), fullJid, action);
1378            });
1379        }
1380    }
1381
1382    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1383        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1384        intent.setAction(action);
1385        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1386        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1387        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1388        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1389        startActivity(intent);
1390    }
1391
1392    private void handleAttachmentSelection(MenuItem item) {
1393        switch (item.getItemId()) {
1394            case R.id.attach_choose_picture:
1395                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1396                break;
1397            case R.id.attach_take_picture:
1398                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1399                break;
1400            case R.id.attach_record_video:
1401                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1402                break;
1403            case R.id.attach_choose_file:
1404                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1405                break;
1406            case R.id.attach_record_voice:
1407                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1408                break;
1409            case R.id.attach_location:
1410                attachFile(ATTACHMENT_CHOICE_LOCATION);
1411                break;
1412        }
1413    }
1414
1415    private void handleEncryptionSelection(MenuItem item) {
1416        if (conversation == null) {
1417            return;
1418        }
1419        final boolean updated;
1420        switch (item.getItemId()) {
1421            case R.id.encryption_choice_none:
1422                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1423                item.setChecked(true);
1424                break;
1425            case R.id.encryption_choice_pgp:
1426                if (activity.hasPgp()) {
1427                    if (conversation.getAccount().getPgpSignature() != null) {
1428                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1429                        item.setChecked(true);
1430                    } else {
1431                        updated = false;
1432                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1433                    }
1434                } else {
1435                    activity.showInstallPgpDialog();
1436                    updated = false;
1437                }
1438                break;
1439            case R.id.encryption_choice_axolotl:
1440                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1441                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1442                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1443                item.setChecked(true);
1444                break;
1445            default:
1446                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1447                break;
1448        }
1449        if (updated) {
1450            activity.xmppConnectionService.updateConversation(conversation);
1451        }
1452        updateChatMsgHint();
1453        getActivity().invalidateOptionsMenu();
1454        activity.refreshUi();
1455    }
1456
1457    public void attachFile(final int attachmentChoice) {
1458        attachFile(attachmentChoice, true);
1459    }
1460
1461    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1462        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1463            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1464                return;
1465            }
1466        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1467            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1468                return;
1469            }
1470        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1471            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1472                return;
1473            }
1474        }
1475        if (updateRecentlyUsed) {
1476            storeRecentlyUsedQuickAction(attachmentChoice);
1477        }
1478        final int encryption = conversation.getNextEncryption();
1479        final int mode = conversation.getMode();
1480        if (encryption == Message.ENCRYPTION_PGP) {
1481            if (activity.hasPgp()) {
1482                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1483                    activity.xmppConnectionService.getPgpEngine().hasKey(
1484                            conversation.getContact(),
1485                            new UiCallback<Contact>() {
1486
1487                                @Override
1488                                public void userInputRequired(PendingIntent pi, Contact contact) {
1489                                    startPendingIntent(pi, attachmentChoice);
1490                                }
1491
1492                                @Override
1493                                public void success(Contact contact) {
1494                                    invokeAttachFileIntent(attachmentChoice);
1495                                }
1496
1497                                @Override
1498                                public void error(int error, Contact contact) {
1499                                    activity.replaceToast(getString(error));
1500                                }
1501                            });
1502                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1503                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1504                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1505                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1506                        warning.show();
1507                    }
1508                    invokeAttachFileIntent(attachmentChoice);
1509                } else {
1510                    showNoPGPKeyDialog(false, (dialog, which) -> {
1511                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1512                        activity.xmppConnectionService.updateConversation(conversation);
1513                        invokeAttachFileIntent(attachmentChoice);
1514                    });
1515                }
1516            } else {
1517                activity.showInstallPgpDialog();
1518            }
1519        } else {
1520            invokeAttachFileIntent(attachmentChoice);
1521        }
1522    }
1523
1524    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1525        try {
1526            activity.getPreferences().edit()
1527                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1528                    .apply();
1529        } catch (IllegalArgumentException e) {
1530            //just do not save
1531        }
1532    }
1533
1534    @Override
1535    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1536        if (grantResults.length > 0) {
1537            if (allGranted(grantResults)) {
1538                switch (requestCode) {
1539                    case REQUEST_START_DOWNLOAD:
1540                        if (this.mPendingDownloadableMessage != null) {
1541                            startDownloadable(this.mPendingDownloadableMessage);
1542                        }
1543                        break;
1544                    case REQUEST_ADD_EDITOR_CONTENT:
1545                        if (this.mPendingEditorContent != null) {
1546                            attachEditorContentToConversation(this.mPendingEditorContent);
1547                        }
1548                        break;
1549                    case REQUEST_COMMIT_ATTACHMENTS:
1550                        commitAttachments();
1551                        break;
1552                    case REQUEST_START_AUDIO_CALL:
1553                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1554                        break;
1555                    case REQUEST_START_VIDEO_CALL:
1556                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1557                        break;
1558                    default:
1559                        attachFile(requestCode);
1560                        break;
1561                }
1562            } else {
1563                @StringRes int res;
1564                String firstDenied = getFirstDenied(grantResults, permissions);
1565                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1566                    res = R.string.no_microphone_permission;
1567                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1568                    res = R.string.no_camera_permission;
1569                } else {
1570                    res = R.string.no_storage_permission;
1571                }
1572                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1573            }
1574        }
1575        if (writeGranted(grantResults, permissions)) {
1576            if (activity != null && activity.xmppConnectionService != null) {
1577                activity.xmppConnectionService.restartFileObserver();
1578            }
1579            refresh();
1580        }
1581    }
1582
1583    public void startDownloadable(Message message) {
1584        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1585            this.mPendingDownloadableMessage = message;
1586            return;
1587        }
1588        Transferable transferable = message.getTransferable();
1589        if (transferable != null) {
1590            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1591                createNewConnection(message);
1592                return;
1593            }
1594            if (!transferable.start()) {
1595                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1596                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1597            }
1598        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1599            createNewConnection(message);
1600        } else {
1601            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1602        }
1603    }
1604
1605    private void createNewConnection(final Message message) {
1606        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1607            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1608            return;
1609        }
1610        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1611    }
1612
1613    @SuppressLint("InflateParams")
1614    protected void clearHistoryDialog(final Conversation conversation) {
1615        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1616        builder.setTitle(getString(R.string.clear_conversation_history));
1617        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1618        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1619        builder.setView(dialogView);
1620        builder.setNegativeButton(getString(R.string.cancel), null);
1621        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1622            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1623            if (endConversationCheckBox.isChecked()) {
1624                this.activity.xmppConnectionService.archiveConversation(conversation);
1625                this.activity.onConversationArchived(conversation);
1626            } else {
1627                activity.onConversationsListItemUpdated();
1628                refresh();
1629            }
1630        });
1631        builder.create().show();
1632    }
1633
1634    protected void muteConversationDialog(final Conversation conversation) {
1635        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1636        builder.setTitle(R.string.disable_notifications);
1637        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1638        final CharSequence[] labels = new CharSequence[durations.length];
1639        for (int i = 0; i < durations.length; ++i) {
1640            if (durations[i] == -1) {
1641                labels[i] = getString(R.string.until_further_notice);
1642            } else {
1643                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1644            }
1645        }
1646        builder.setItems(labels, (dialog, which) -> {
1647            final long till;
1648            if (durations[which] == -1) {
1649                till = Long.MAX_VALUE;
1650            } else {
1651                till = System.currentTimeMillis() + (durations[which] * 1000);
1652            }
1653            conversation.setMutedTill(till);
1654            activity.xmppConnectionService.updateConversation(conversation);
1655            activity.onConversationsListItemUpdated();
1656            refresh();
1657            getActivity().invalidateOptionsMenu();
1658        });
1659        builder.create().show();
1660    }
1661
1662    private boolean hasPermissions(int requestCode, String... permissions) {
1663        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1664            final List<String> missingPermissions = new ArrayList<>();
1665            for (String permission : permissions) {
1666                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1667                    continue;
1668                }
1669                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1670                    missingPermissions.add(permission);
1671                }
1672            }
1673            if (missingPermissions.size() == 0) {
1674                return true;
1675            } else {
1676                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1677                return false;
1678            }
1679        } else {
1680            return true;
1681        }
1682    }
1683
1684    public void unmuteConversation(final Conversation conversation) {
1685        conversation.setMutedTill(0);
1686        this.activity.xmppConnectionService.updateConversation(conversation);
1687        this.activity.onConversationsListItemUpdated();
1688        refresh();
1689        getActivity().invalidateOptionsMenu();
1690    }
1691
1692
1693    protected void invokeAttachFileIntent(final int attachmentChoice) {
1694        Intent intent = new Intent();
1695        boolean chooser = false;
1696        switch (attachmentChoice) {
1697            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1698                intent.setAction(Intent.ACTION_GET_CONTENT);
1699                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1700                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1701                }
1702                intent.setType("image/*");
1703                chooser = true;
1704                break;
1705            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1706                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1707                break;
1708            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1709                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1710                pendingTakePhotoUri.push(uri);
1711                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1712                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1713                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1714                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1715                break;
1716            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1717                chooser = true;
1718                intent.setType("*/*");
1719                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1720                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1721                }
1722                intent.addCategory(Intent.CATEGORY_OPENABLE);
1723                intent.setAction(Intent.ACTION_GET_CONTENT);
1724                break;
1725            case ATTACHMENT_CHOICE_RECORD_VOICE:
1726                intent = new Intent(getActivity(), RecordingActivity.class);
1727                break;
1728            case ATTACHMENT_CHOICE_LOCATION:
1729                intent = GeoHelper.getFetchIntent(activity);
1730                break;
1731        }
1732        final Context context = getActivity();
1733        if (context == null) {
1734            return;
1735        }
1736        if (intent.resolveActivity(context.getPackageManager()) != null) {
1737            if (chooser) {
1738                startActivityForResult(
1739                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1740                        attachmentChoice);
1741            } else {
1742                startActivityForResult(intent, attachmentChoice);
1743            }
1744        } else {
1745            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
1746        }
1747    }
1748
1749    @Override
1750    public void onResume() {
1751        super.onResume();
1752        binding.messagesView.post(this::fireReadEvent);
1753    }
1754
1755    private void fireReadEvent() {
1756        if (activity != null && this.conversation != null) {
1757            String uuid = getLastVisibleMessageUuid();
1758            if (uuid != null) {
1759                activity.onConversationRead(this.conversation, uuid);
1760            }
1761        }
1762    }
1763
1764    private String getLastVisibleMessageUuid() {
1765        if (binding == null) {
1766            return null;
1767        }
1768        synchronized (this.messageList) {
1769            int pos = binding.messagesView.getLastVisiblePosition();
1770            if (pos >= 0) {
1771                Message message = null;
1772                for (int i = pos; i >= 0; --i) {
1773                    try {
1774                        message = (Message) binding.messagesView.getItemAtPosition(i);
1775                    } catch (IndexOutOfBoundsException e) {
1776                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1777                        continue;
1778                    }
1779                    if (message.getType() != Message.TYPE_STATUS) {
1780                        break;
1781                    }
1782                }
1783                if (message != null) {
1784                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1785                        message = message.next();
1786                    }
1787                    return message.getUuid();
1788                }
1789            }
1790        }
1791        return null;
1792    }
1793
1794    private void openWith(final Message message) {
1795        if (message.isGeoUri()) {
1796            GeoHelper.view(getActivity(), message);
1797        } else {
1798            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1799            ViewUtil.view(activity, file);
1800        }
1801    }
1802
1803    private void showErrorMessage(final Message message) {
1804        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1805        builder.setTitle(R.string.error_message);
1806        final String errorMessage = message.getErrorMessage();
1807        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1808        final String displayError;
1809        if (errorMessageParts.length == 2) {
1810            displayError = errorMessageParts[1];
1811        } else {
1812            displayError = errorMessage;
1813        }
1814        builder.setMessage(displayError);
1815        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1816            activity.copyTextToClipboard(displayError, R.string.error_message);
1817            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1818        });
1819        builder.setPositiveButton(R.string.confirm, null);
1820        builder.create().show();
1821    }
1822
1823
1824    private void deleteFile(final Message message) {
1825        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1826        builder.setNegativeButton(R.string.cancel, null);
1827        builder.setTitle(R.string.delete_file_dialog);
1828        builder.setMessage(R.string.delete_file_dialog_msg);
1829        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1830            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1831                message.setDeleted(true);
1832                activity.xmppConnectionService.evictPreview(message.getUuid());
1833                activity.xmppConnectionService.updateMessage(message, false);
1834                activity.onConversationsListItemUpdated();
1835                refresh();
1836            }
1837        });
1838        builder.create().show();
1839
1840    }
1841
1842    private void resendMessage(final Message message) {
1843        if (message.isFileOrImage()) {
1844            if (!(message.getConversation() instanceof Conversation)) {
1845                return;
1846            }
1847            final Conversation conversation = (Conversation) message.getConversation();
1848            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1849            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1850                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1851                if (!message.hasFileOnRemoteHost()
1852                        && xmppConnection != null
1853                        && conversation.getMode() == Conversational.MODE_SINGLE
1854                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1855                    activity.selectPresence(conversation, () -> {
1856                        message.setCounterpart(conversation.getNextCounterpart());
1857                        activity.xmppConnectionService.resendFailedMessages(message);
1858                        new Handler().post(() -> {
1859                            int size = messageList.size();
1860                            this.binding.messagesView.setSelection(size - 1);
1861                        });
1862                    });
1863                    return;
1864                }
1865            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1866                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1867                return;
1868            } else {
1869                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1870                message.setDeleted(true);
1871                activity.xmppConnectionService.updateMessage(message, false);
1872                activity.onConversationsListItemUpdated();
1873                refresh();
1874                return;
1875            }
1876        }
1877        activity.xmppConnectionService.resendFailedMessages(message);
1878        new Handler().post(() -> {
1879            int size = messageList.size();
1880            this.binding.messagesView.setSelection(size - 1);
1881        });
1882    }
1883
1884    private void cancelTransmission(Message message) {
1885        Transferable transferable = message.getTransferable();
1886        if (transferable != null) {
1887            transferable.cancel();
1888        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1889            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1890        }
1891    }
1892
1893    private void retryDecryption(Message message) {
1894        message.setEncryption(Message.ENCRYPTION_PGP);
1895        activity.onConversationsListItemUpdated();
1896        refresh();
1897        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1898    }
1899
1900    public void privateMessageWith(final Jid counterpart) {
1901        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1902            activity.xmppConnectionService.sendChatState(conversation);
1903        }
1904        this.binding.textinput.setText("");
1905        this.conversation.setNextCounterpart(counterpart);
1906        updateChatMsgHint();
1907        updateSendButton();
1908        updateEditablity();
1909    }
1910
1911    private void correctMessage(Message message) {
1912        while (message.mergeable(message.next())) {
1913            message = message.next();
1914        }
1915        this.conversation.setCorrectingMessage(message);
1916        final Editable editable = binding.textinput.getText();
1917        this.conversation.setDraftMessage(editable.toString());
1918        this.binding.textinput.setText("");
1919        this.binding.textinput.append(message.getBody());
1920
1921    }
1922
1923    private void highlightInConference(String nick) {
1924        final Editable editable = this.binding.textinput.getText();
1925        String oldString = editable.toString().trim();
1926        final int pos = this.binding.textinput.getSelectionStart();
1927        if (oldString.isEmpty() || pos == 0) {
1928            editable.insert(0, nick + ": ");
1929        } else {
1930            final char before = editable.charAt(pos - 1);
1931            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1932            if (before == '\n') {
1933                editable.insert(pos, nick + ": ");
1934            } else {
1935                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1936                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1937                        editable.insert(pos - 2, ", " + nick);
1938                        return;
1939                    }
1940                }
1941                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1942                if (Character.isWhitespace(after)) {
1943                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1944                }
1945            }
1946        }
1947    }
1948
1949    @Override
1950    public void startActivityForResult(Intent intent, int requestCode) {
1951        final Activity activity = getActivity();
1952        if (activity instanceof ConversationsActivity) {
1953            ((ConversationsActivity) activity).clearPendingViewIntent();
1954        }
1955        super.startActivityForResult(intent, requestCode);
1956    }
1957
1958    @Override
1959    public void onSaveInstanceState(Bundle outState) {
1960        super.onSaveInstanceState(outState);
1961        if (conversation != null) {
1962            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1963            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1964            final Uri uri = pendingTakePhotoUri.peek();
1965            if (uri != null) {
1966                outState.putString(STATE_PHOTO_URI, uri.toString());
1967            }
1968            final ScrollState scrollState = getScrollPosition();
1969            if (scrollState != null) {
1970                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1971            }
1972            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1973            if (attachments.size() > 0) {
1974                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1975            }
1976        }
1977    }
1978
1979    @Override
1980    public void onActivityCreated(Bundle savedInstanceState) {
1981        super.onActivityCreated(savedInstanceState);
1982        if (savedInstanceState == null) {
1983            return;
1984        }
1985        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1986        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1987        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1988        if (uuid != null) {
1989            QuickLoader.set(uuid);
1990            this.pendingConversationsUuid.push(uuid);
1991            if (attachments != null && attachments.size() > 0) {
1992                this.pendingMediaPreviews.push(attachments);
1993            }
1994            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1995            if (takePhotoUri != null) {
1996                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1997            }
1998            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1999        }
2000    }
2001
2002    @Override
2003    public void onStart() {
2004        super.onStart();
2005        if (this.reInitRequiredOnStart && this.conversation != null) {
2006            final Bundle extras = pendingExtras.pop();
2007            reInit(this.conversation, extras != null);
2008            if (extras != null) {
2009                processExtras(extras);
2010            }
2011        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2012            final String uuid = pendingConversationsUuid.pop();
2013            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2014            if (uuid != null) {
2015                findAndReInitByUuidOrArchive(uuid);
2016            }
2017        }
2018    }
2019
2020    @Override
2021    public void onStop() {
2022        super.onStop();
2023        final Activity activity = getActivity();
2024        messageListAdapter.unregisterListenerInAudioPlayer();
2025        if (activity == null || !activity.isChangingConfigurations()) {
2026            hideSoftKeyboard(activity);
2027            messageListAdapter.stopAudioPlayer();
2028        }
2029        if (this.conversation != null) {
2030            final String msg = this.binding.textinput.getText().toString();
2031            storeNextMessage(msg);
2032            updateChatState(this.conversation, msg);
2033            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2034        }
2035        this.reInitRequiredOnStart = true;
2036    }
2037
2038    private void updateChatState(final Conversation conversation, final String msg) {
2039        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2040        Account.State status = conversation.getAccount().getStatus();
2041        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2042            activity.xmppConnectionService.sendChatState(conversation);
2043        }
2044    }
2045
2046    private void saveMessageDraftStopAudioPlayer() {
2047        final Conversation previousConversation = this.conversation;
2048        if (this.activity == null || this.binding == null || previousConversation == null) {
2049            return;
2050        }
2051        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2052        final String msg = this.binding.textinput.getText().toString();
2053        storeNextMessage(msg);
2054        updateChatState(this.conversation, msg);
2055        messageListAdapter.stopAudioPlayer();
2056        mediaPreviewAdapter.clearPreviews();
2057        toggleInputMethod();
2058    }
2059
2060    public void reInit(final Conversation conversation, final Bundle extras) {
2061        QuickLoader.set(conversation.getUuid());
2062        final boolean changedConversation = this.conversation != conversation;
2063        if (changedConversation) {
2064            this.saveMessageDraftStopAudioPlayer();
2065        }
2066        this.clearPending();
2067        if (this.reInit(conversation, extras != null)) {
2068            if (extras != null) {
2069                processExtras(extras);
2070            }
2071            this.reInitRequiredOnStart = false;
2072        } else {
2073            this.reInitRequiredOnStart = true;
2074            pendingExtras.push(extras);
2075        }
2076        resetUnreadMessagesCount();
2077    }
2078
2079    private void reInit(Conversation conversation) {
2080        reInit(conversation, false);
2081    }
2082
2083    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2084        if (conversation == null) {
2085            return false;
2086        }
2087        this.conversation = conversation;
2088        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2089        if (this.activity == null || this.binding == null) {
2090            return false;
2091        }
2092
2093        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2094            activity.onConversationArchived(this.conversation);
2095            return false;
2096        }
2097
2098        stopScrolling();
2099        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
2100
2101        if (this.conversation.isRead() && hasExtras) {
2102            Log.d(Config.LOGTAG, "trimming conversation");
2103            this.conversation.trim();
2104        }
2105
2106        setupIme();
2107
2108        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2109
2110        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2111        this.binding.textinput.setKeyboardListener(null);
2112        this.binding.textinput.setText("");
2113        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2114        if (participating) {
2115            this.binding.textinput.append(this.conversation.getNextMessage());
2116        }
2117        this.binding.textinput.setKeyboardListener(this);
2118        messageListAdapter.updatePreferences();
2119        refresh(false);
2120        activity.invalidateOptionsMenu();
2121        this.conversation.messagesLoaded.set(true);
2122        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
2123
2124        if (hasExtras || scrolledToBottomAndNoPending) {
2125            resetUnreadMessagesCount();
2126            synchronized (this.messageList) {
2127                Log.d(Config.LOGTAG, "jump to first unread message");
2128                final Message first = conversation.getFirstUnreadMessage();
2129                final int bottom = Math.max(0, this.messageList.size() - 1);
2130                final int pos;
2131                final boolean jumpToBottom;
2132                if (first == null) {
2133                    pos = bottom;
2134                    jumpToBottom = true;
2135                } else {
2136                    int i = getIndexOf(first.getUuid(), this.messageList);
2137                    pos = i < 0 ? bottom : i;
2138                    jumpToBottom = false;
2139                }
2140                setSelection(pos, jumpToBottom);
2141            }
2142        }
2143
2144
2145        this.binding.messagesView.post(this::fireReadEvent);
2146        //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
2147        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2148        return true;
2149    }
2150
2151    private void resetUnreadMessagesCount() {
2152        lastMessageUuid = null;
2153        hideUnreadMessagesCount();
2154    }
2155
2156    private void hideUnreadMessagesCount() {
2157        if (this.binding == null) {
2158            return;
2159        }
2160        this.binding.scrollToBottomButton.setEnabled(false);
2161        this.binding.scrollToBottomButton.hide();
2162        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2163    }
2164
2165    private void setSelection(int pos, boolean jumpToBottom) {
2166        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2167        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2168        this.binding.messagesView.post(this::fireReadEvent);
2169    }
2170
2171
2172    private boolean scrolledToBottom() {
2173        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2174    }
2175
2176    private void processExtras(final Bundle extras) {
2177        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2178        final String text = extras.getString(Intent.EXTRA_TEXT);
2179        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2180        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2181        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2182        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2183        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2184        final List<Uri> uris = extractUris(extras);
2185        if (uris != null && uris.size() > 0) {
2186            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2187                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2188            } else {
2189                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2190                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2191            }
2192            toggleInputMethod();
2193            return;
2194        }
2195        if (nick != null) {
2196            if (pm) {
2197                Jid jid = conversation.getJid();
2198                try {
2199                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2200                    privateMessageWith(next);
2201                } catch (final IllegalArgumentException ignored) {
2202                    //do nothing
2203                }
2204            } else {
2205                final MucOptions mucOptions = conversation.getMucOptions();
2206                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2207                    highlightInConference(nick);
2208                }
2209            }
2210        } else {
2211            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2212                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2213                toggleInputMethod();
2214                return;
2215            } else if (text != null && asQuote) {
2216                quoteText(text);
2217            } else {
2218                appendText(text, doNotAppend);
2219            }
2220        }
2221        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2222            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2223            return;
2224        }
2225        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2226        if (message != null) {
2227            startDownloadable(message);
2228        }
2229    }
2230
2231    private List<Uri> extractUris(final Bundle extras) {
2232        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2233        if (uris != null) {
2234            return uris;
2235        }
2236        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2237        if (uri != null) {
2238            return Collections.singletonList(uri);
2239        } else {
2240            return null;
2241        }
2242    }
2243
2244    private List<Uri> cleanUris(final List<Uri> uris) {
2245        Iterator<Uri> iterator = uris.iterator();
2246        while (iterator.hasNext()) {
2247            final Uri uri = iterator.next();
2248            if (FileBackend.weOwnFile(getActivity(), uri)) {
2249                iterator.remove();
2250                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2251            }
2252        }
2253        return uris;
2254    }
2255
2256    private boolean showBlockSubmenu(View view) {
2257        final Jid jid = conversation.getJid();
2258        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2259        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2260        popupMenu.inflate(R.menu.block);
2261        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2262        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2263        popupMenu.setOnMenuItemClickListener(menuItem -> {
2264            Blockable blockable;
2265            switch (menuItem.getItemId()) {
2266                case R.id.reject:
2267                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2268                    updateSnackBar(conversation);
2269                    return true;
2270                case R.id.block_domain:
2271                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2272                    break;
2273                default:
2274                    blockable = conversation;
2275            }
2276            BlockContactDialog.show(activity, blockable);
2277            return true;
2278        });
2279        popupMenu.show();
2280        return true;
2281    }
2282
2283    private void updateSnackBar(final Conversation conversation) {
2284        final Account account = conversation.getAccount();
2285        final XmppConnection connection = account.getXmppConnection();
2286        final int mode = conversation.getMode();
2287        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2288        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2289            return;
2290        }
2291        if (account.getStatus() == Account.State.DISABLED) {
2292            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2293        } else if (conversation.isBlocked()) {
2294            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2295        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2296            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2297        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2298            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2299        } else if (mode == Conversation.MODE_MULTI
2300                && !conversation.getMucOptions().online()
2301                && account.getStatus() == Account.State.ONLINE) {
2302            switch (conversation.getMucOptions().getError()) {
2303                case NICK_IN_USE:
2304                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2305                    break;
2306                case NO_RESPONSE:
2307                    showSnackbar(R.string.joining_conference, 0, null);
2308                    break;
2309                case SERVER_NOT_FOUND:
2310                    if (conversation.receivedMessagesCount() > 0) {
2311                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2312                    } else {
2313                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2314                    }
2315                    break;
2316                case REMOTE_SERVER_TIMEOUT:
2317                    if (conversation.receivedMessagesCount() > 0) {
2318                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2319                    } else {
2320                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2321                    }
2322                    break;
2323                case PASSWORD_REQUIRED:
2324                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2325                    break;
2326                case BANNED:
2327                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2328                    break;
2329                case MEMBERS_ONLY:
2330                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2331                    break;
2332                case RESOURCE_CONSTRAINT:
2333                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2334                    break;
2335                case KICKED:
2336                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2337                    break;
2338                case UNKNOWN:
2339                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2340                    break;
2341                case INVALID_NICK:
2342                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2343                case SHUTDOWN:
2344                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2345                    break;
2346                case DESTROYED:
2347                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2348                    break;
2349                case NON_ANONYMOUS:
2350                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2351                    break;
2352                default:
2353                    hideSnackbar();
2354                    break;
2355            }
2356        } else if (account.hasPendingPgpIntent(conversation)) {
2357            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2358        } else if (connection != null
2359                && connection.getFeatures().blocking()
2360                && conversation.countMessages() != 0
2361                && !conversation.isBlocked()
2362                && conversation.isWithStranger()) {
2363            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2364        } else {
2365            hideSnackbar();
2366        }
2367    }
2368
2369    @Override
2370    public void refresh() {
2371        if (this.binding == null) {
2372            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2373            return;
2374        }
2375        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2376            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2377                activity.onConversationArchived(this.conversation);
2378                return;
2379            }
2380        }
2381        this.refresh(true);
2382    }
2383
2384    private void refresh(boolean notifyConversationRead) {
2385        synchronized (this.messageList) {
2386            if (this.conversation != null) {
2387                conversation.populateWithMessages(this.messageList);
2388                updateSnackBar(conversation);
2389                updateStatusMessages();
2390                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2391                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2392                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2393                }
2394                this.messageListAdapter.notifyDataSetChanged();
2395                updateChatMsgHint();
2396                if (notifyConversationRead && activity != null) {
2397                    binding.messagesView.post(this::fireReadEvent);
2398                }
2399                updateSendButton();
2400                updateEditablity();
2401            }
2402        }
2403    }
2404
2405    protected void messageSent() {
2406        mSendingPgpMessage.set(false);
2407        this.binding.textinput.setText("");
2408        if (conversation.setCorrectingMessage(null)) {
2409            this.binding.textinput.append(conversation.getDraftMessage());
2410            conversation.setDraftMessage(null);
2411        }
2412        storeNextMessage();
2413        updateChatMsgHint();
2414        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2415        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2416        if (prefScrollToBottom || scrolledToBottom()) {
2417            new Handler().post(() -> {
2418                int size = messageList.size();
2419                this.binding.messagesView.setSelection(size - 1);
2420            });
2421        }
2422    }
2423
2424    private boolean storeNextMessage() {
2425        return storeNextMessage(this.binding.textinput.getText().toString());
2426    }
2427
2428    private boolean storeNextMessage(String msg) {
2429        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2430        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2431            this.activity.xmppConnectionService.updateConversation(this.conversation);
2432            return true;
2433        }
2434        return false;
2435    }
2436
2437    public void doneSendingPgpMessage() {
2438        mSendingPgpMessage.set(false);
2439    }
2440
2441    public long getMaxHttpUploadSize(Conversation conversation) {
2442        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2443        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2444    }
2445
2446    private void updateEditablity() {
2447        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2448        this.binding.textinput.setFocusable(canWrite);
2449        this.binding.textinput.setFocusableInTouchMode(canWrite);
2450        this.binding.textSendButton.setEnabled(canWrite);
2451        this.binding.textinput.setCursorVisible(canWrite);
2452        this.binding.textinput.setEnabled(canWrite);
2453    }
2454
2455    public void updateSendButton() {
2456        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2457        final Conversation c = this.conversation;
2458        final Presence.Status status;
2459        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2460        final SendButtonAction action;
2461        if (hasAttachments) {
2462            action = SendButtonAction.TEXT;
2463        } else {
2464            action = SendButtonTool.getAction(getActivity(), c, text);
2465        }
2466        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2467            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2468                status = Presence.Status.OFFLINE;
2469            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2470                status = c.getContact().getShownStatus();
2471            } else {
2472                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2473            }
2474        } else {
2475            status = Presence.Status.OFFLINE;
2476        }
2477        this.binding.textSendButton.setTag(action);
2478        final Activity activity = getActivity();
2479        if (activity != null) {
2480            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2481        }
2482    }
2483
2484    protected void updateStatusMessages() {
2485        DateSeparator.addAll(this.messageList);
2486        if (showLoadMoreMessages(conversation)) {
2487            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2488        }
2489        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2490            ChatState state = conversation.getIncomingChatState();
2491            if (state == ChatState.COMPOSING) {
2492                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2493            } else if (state == ChatState.PAUSED) {
2494                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2495            } else {
2496                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2497                    final Message message = this.messageList.get(i);
2498                    if (message.getType() != Message.TYPE_STATUS) {
2499                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2500                            return;
2501                        } else {
2502                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2503                                this.messageList.add(i + 1,
2504                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2505                                return;
2506                            }
2507                        }
2508                    }
2509                }
2510            }
2511        } else {
2512            final MucOptions mucOptions = conversation.getMucOptions();
2513            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2514            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2515            ChatState state = ChatState.COMPOSING;
2516            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2517            if (users.size() == 0) {
2518                state = ChatState.PAUSED;
2519                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2520            }
2521            if (mucOptions.isPrivateAndNonAnonymous()) {
2522                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2523                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2524                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2525                    for (ReadByMarker marker : markersForMessage) {
2526                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2527                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2528                            MucOptions.User user = mucOptions.findUser(marker);
2529                            if (user != null && !users.contains(user)) {
2530                                shownMarkers.add(user);
2531                            }
2532                        }
2533                    }
2534                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2535                    final Message statusMessage;
2536                    final int size = shownMarkers.size();
2537                    if (size > 1) {
2538                        final String body;
2539                        if (size <= 4) {
2540                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2541                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2542                            body = getString(R.string.everyone_has_read_up_to_this_point);
2543                        } else {
2544                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2545                        }
2546                        statusMessage = Message.createStatusMessage(conversation, body);
2547                        statusMessage.setCounterparts(shownMarkers);
2548                    } else if (size == 1) {
2549                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2550                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2551                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2552                    } else {
2553                        statusMessage = null;
2554                    }
2555                    if (statusMessage != null) {
2556                        this.messageList.add(i + 1, statusMessage);
2557                    }
2558                    addedMarkers.add(markerForSender);
2559                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2560                        break;
2561                    }
2562                }
2563            }
2564            if (users.size() > 0) {
2565                Message statusMessage;
2566                if (users.size() == 1) {
2567                    MucOptions.User user = users.get(0);
2568                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2569                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2570                    statusMessage.setTrueCounterpart(user.getRealJid());
2571                    statusMessage.setCounterpart(user.getFullJid());
2572                } else {
2573                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2574                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2575                    statusMessage.setCounterparts(users);
2576                }
2577                this.messageList.add(statusMessage);
2578            }
2579
2580        }
2581    }
2582
2583    private void stopScrolling() {
2584        long now = SystemClock.uptimeMillis();
2585        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2586        binding.messagesView.dispatchTouchEvent(cancel);
2587    }
2588
2589    private boolean showLoadMoreMessages(final Conversation c) {
2590        if (activity == null || activity.xmppConnectionService == null) {
2591            return false;
2592        }
2593        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2594        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2595        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2596    }
2597
2598    private boolean hasMamSupport(final Conversation c) {
2599        if (c.getMode() == Conversation.MODE_SINGLE) {
2600            final XmppConnection connection = c.getAccount().getXmppConnection();
2601            return connection != null && connection.getFeatures().mam();
2602        } else {
2603            return c.getMucOptions().mamSupport();
2604        }
2605    }
2606
2607    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2608        showSnackbar(message, action, clickListener, null);
2609    }
2610
2611    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2612        this.binding.snackbar.setVisibility(View.VISIBLE);
2613        this.binding.snackbar.setOnClickListener(null);
2614        this.binding.snackbarMessage.setText(message);
2615        this.binding.snackbarMessage.setOnClickListener(null);
2616        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2617        if (action != 0) {
2618            this.binding.snackbarAction.setText(action);
2619        }
2620        this.binding.snackbarAction.setOnClickListener(clickListener);
2621        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2622    }
2623
2624    protected void hideSnackbar() {
2625        this.binding.snackbar.setVisibility(View.GONE);
2626    }
2627
2628    protected void sendMessage(Message message) {
2629        activity.xmppConnectionService.sendMessage(message);
2630        messageSent();
2631    }
2632
2633    protected void sendPgpMessage(final Message message) {
2634        final XmppConnectionService xmppService = activity.xmppConnectionService;
2635        final Contact contact = message.getConversation().getContact();
2636        if (!activity.hasPgp()) {
2637            activity.showInstallPgpDialog();
2638            return;
2639        }
2640        if (conversation.getAccount().getPgpSignature() == null) {
2641            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2642            return;
2643        }
2644        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2645            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2646        }
2647        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2648            if (contact.getPgpKeyId() != 0) {
2649                xmppService.getPgpEngine().hasKey(contact,
2650                        new UiCallback<Contact>() {
2651
2652                            @Override
2653                            public void userInputRequired(PendingIntent pi, Contact contact) {
2654                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2655                            }
2656
2657                            @Override
2658                            public void success(Contact contact) {
2659                                encryptTextMessage(message);
2660                            }
2661
2662                            @Override
2663                            public void error(int error, Contact contact) {
2664                                activity.runOnUiThread(() -> Toast.makeText(activity,
2665                                        R.string.unable_to_connect_to_keychain,
2666                                        Toast.LENGTH_SHORT
2667                                ).show());
2668                                mSendingPgpMessage.set(false);
2669                            }
2670                        });
2671
2672            } else {
2673                showNoPGPKeyDialog(false, (dialog, which) -> {
2674                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2675                    xmppService.updateConversation(conversation);
2676                    message.setEncryption(Message.ENCRYPTION_NONE);
2677                    xmppService.sendMessage(message);
2678                    messageSent();
2679                });
2680            }
2681        } else {
2682            if (conversation.getMucOptions().pgpKeysInUse()) {
2683                if (!conversation.getMucOptions().everybodyHasKeys()) {
2684                    Toast warning = Toast
2685                            .makeText(getActivity(),
2686                                    R.string.missing_public_keys,
2687                                    Toast.LENGTH_LONG);
2688                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2689                    warning.show();
2690                }
2691                encryptTextMessage(message);
2692            } else {
2693                showNoPGPKeyDialog(true, (dialog, which) -> {
2694                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2695                    message.setEncryption(Message.ENCRYPTION_NONE);
2696                    xmppService.updateConversation(conversation);
2697                    xmppService.sendMessage(message);
2698                    messageSent();
2699                });
2700            }
2701        }
2702    }
2703
2704    public void encryptTextMessage(Message message) {
2705        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2706                new UiCallback<Message>() {
2707
2708                    @Override
2709                    public void userInputRequired(PendingIntent pi, Message message) {
2710                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2711                    }
2712
2713                    @Override
2714                    public void success(Message message) {
2715                        //TODO the following two call can be made before the callback
2716                        getActivity().runOnUiThread(() -> messageSent());
2717                    }
2718
2719                    @Override
2720                    public void error(final int error, Message message) {
2721                        getActivity().runOnUiThread(() -> {
2722                            doneSendingPgpMessage();
2723                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2724                        });
2725
2726                    }
2727                });
2728    }
2729
2730    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2731        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2732        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2733        if (plural) {
2734            builder.setTitle(getString(R.string.no_pgp_keys));
2735            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2736        } else {
2737            builder.setTitle(getString(R.string.no_pgp_key));
2738            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2739        }
2740        builder.setNegativeButton(getString(R.string.cancel), null);
2741        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2742        builder.create().show();
2743    }
2744
2745    public void appendText(String text, final boolean doNotAppend) {
2746        if (text == null) {
2747            return;
2748        }
2749        final Editable editable = this.binding.textinput.getText();
2750        String previous = editable == null ? "" : editable.toString();
2751        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2752            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2753            return;
2754        }
2755        if (UIHelper.isLastLineQuote(previous)) {
2756            text = '\n' + text;
2757        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2758            text = " " + text;
2759        }
2760        this.binding.textinput.append(text);
2761    }
2762
2763    @Override
2764    public boolean onEnterPressed(final boolean isCtrlPressed) {
2765        if (isCtrlPressed || enterIsSend()) {
2766            sendMessage();
2767            return true;
2768        }
2769        return false;
2770    }
2771
2772    private boolean enterIsSend() {
2773        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2774        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2775    }
2776
2777    public boolean onArrowUpCtrlPressed() {
2778        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2779        if (lastEditableMessage != null) {
2780            correctMessage(lastEditableMessage);
2781            return true;
2782        } else {
2783            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2784            return false;
2785        }
2786    }
2787
2788    @Override
2789    public void onTypingStarted() {
2790        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2791        if (service == null) {
2792            return;
2793        }
2794        final Account.State status = conversation.getAccount().getStatus();
2795        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2796            service.sendChatState(conversation);
2797        }
2798        runOnUiThread(this::updateSendButton);
2799    }
2800
2801    @Override
2802    public void onTypingStopped() {
2803        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2804        if (service == null) {
2805            return;
2806        }
2807        final Account.State status = conversation.getAccount().getStatus();
2808        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2809            service.sendChatState(conversation);
2810        }
2811    }
2812
2813    @Override
2814    public void onTextDeleted() {
2815        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2816        if (service == null) {
2817            return;
2818        }
2819        final Account.State status = conversation.getAccount().getStatus();
2820        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2821            service.sendChatState(conversation);
2822        }
2823        if (storeNextMessage()) {
2824            runOnUiThread(() -> {
2825                if (activity == null) {
2826                    return;
2827                }
2828                activity.onConversationsListItemUpdated();
2829            });
2830        }
2831        runOnUiThread(this::updateSendButton);
2832    }
2833
2834    @Override
2835    public void onTextChanged() {
2836        if (conversation != null && conversation.getCorrectingMessage() != null) {
2837            runOnUiThread(this::updateSendButton);
2838        }
2839    }
2840
2841    @Override
2842    public boolean onTabPressed(boolean repeated) {
2843        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2844            return false;
2845        }
2846        if (repeated) {
2847            completionIndex++;
2848        } else {
2849            lastCompletionLength = 0;
2850            completionIndex = 0;
2851            final String content = this.binding.textinput.getText().toString();
2852            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2853            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2854            firstWord = start == 0;
2855            incomplete = content.substring(start, lastCompletionCursor);
2856        }
2857        List<String> completions = new ArrayList<>();
2858        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2859            String name = user.getName();
2860            if (name != null && name.startsWith(incomplete)) {
2861                completions.add(name + (firstWord ? ": " : " "));
2862            }
2863        }
2864        Collections.sort(completions);
2865        if (completions.size() > completionIndex) {
2866            String completion = completions.get(completionIndex).substring(incomplete.length());
2867            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2868            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2869            lastCompletionLength = completion.length();
2870        } else {
2871            completionIndex = -1;
2872            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2873            lastCompletionLength = 0;
2874        }
2875        return true;
2876    }
2877
2878    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2879        try {
2880            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2881        } catch (final SendIntentException ignored) {
2882        }
2883    }
2884
2885    @Override
2886    public void onBackendConnected() {
2887        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2888        String uuid = pendingConversationsUuid.pop();
2889        if (uuid != null) {
2890            if (!findAndReInitByUuidOrArchive(uuid)) {
2891                return;
2892            }
2893        } else {
2894            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2895                clearPending();
2896                activity.onConversationArchived(conversation);
2897                return;
2898            }
2899        }
2900        ActivityResult activityResult = postponedActivityResult.pop();
2901        if (activityResult != null) {
2902            handleActivityResult(activityResult);
2903        }
2904        clearPending();
2905    }
2906
2907    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2908        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2909        if (conversation == null) {
2910            clearPending();
2911            activity.onConversationArchived(null);
2912            return false;
2913        }
2914        reInit(conversation);
2915        ScrollState scrollState = pendingScrollState.pop();
2916        String lastMessageUuid = pendingLastMessageUuid.pop();
2917        List<Attachment> attachments = pendingMediaPreviews.pop();
2918        if (scrollState != null) {
2919            setScrollPosition(scrollState, lastMessageUuid);
2920        }
2921        if (attachments != null && attachments.size() > 0) {
2922            Log.d(Config.LOGTAG, "had attachments on restore");
2923            mediaPreviewAdapter.addMediaPreviews(attachments);
2924            toggleInputMethod();
2925        }
2926        return true;
2927    }
2928
2929    private void clearPending() {
2930        if (postponedActivityResult.clear()) {
2931            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2932            if (pendingTakePhotoUri.clear()) {
2933                Log.e(Config.LOGTAG, "cleared pending photo uri");
2934            }
2935        }
2936        if (pendingScrollState.clear()) {
2937            Log.e(Config.LOGTAG, "cleared scroll state");
2938        }
2939        if (pendingConversationsUuid.clear()) {
2940            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2941        }
2942        if (pendingMediaPreviews.clear()) {
2943            Log.e(Config.LOGTAG, "cleared pending media previews");
2944        }
2945    }
2946
2947    public Conversation getConversation() {
2948        return conversation;
2949    }
2950
2951    @Override
2952    public void onContactPictureLongClicked(View v, final Message message) {
2953        final String fingerprint;
2954        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2955            fingerprint = "pgp";
2956        } else {
2957            fingerprint = message.getFingerprint();
2958        }
2959        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2960        final Contact contact = message.getContact();
2961        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2962            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2963                final Jid cp = message.getCounterpart();
2964                if (cp == null || cp.isBareJid()) {
2965                    return;
2966                }
2967                final Jid tcp = message.getTrueCounterpart();
2968                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2969                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2970                popupMenu.inflate(R.menu.muc_details_context);
2971                final Menu menu = popupMenu.getMenu();
2972                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2973                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2974            } else {
2975                popupMenu.inflate(R.menu.one_on_one_context);
2976                popupMenu.setOnMenuItemClickListener(item -> {
2977                    switch (item.getItemId()) {
2978                        case R.id.action_contact_details:
2979                            activity.switchToContactDetails(message.getContact(), fingerprint);
2980                            break;
2981                        case R.id.action_show_qr_code:
2982                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2983                            break;
2984                    }
2985                    return true;
2986                });
2987            }
2988        } else {
2989            popupMenu.inflate(R.menu.account_context);
2990            final Menu menu = popupMenu.getMenu();
2991            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2992            popupMenu.setOnMenuItemClickListener(item -> {
2993                switch (item.getItemId()) {
2994                    case R.id.action_show_qr_code:
2995                        activity.showQrCode(conversation.getAccount().getShareableUri());
2996                        break;
2997                    case R.id.action_account_details:
2998                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2999                        break;
3000                    case R.id.action_manage_accounts:
3001                        AccountUtils.launchManageAccounts(activity);
3002                        break;
3003                }
3004                return true;
3005            });
3006        }
3007        popupMenu.show();
3008    }
3009
3010    @Override
3011    public void onContactPictureClicked(Message message) {
3012        String fingerprint;
3013        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3014            fingerprint = "pgp";
3015        } else {
3016            fingerprint = message.getFingerprint();
3017        }
3018        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3019        if (received) {
3020            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3021                Jid tcp = message.getTrueCounterpart();
3022                Jid user = message.getCounterpart();
3023                if (user != null && !user.isBareJid()) {
3024                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3025                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3026                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3027                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3028                        }
3029                        highlightInConference(user.getResource());
3030                    } else {
3031                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3032                    }
3033                }
3034                return;
3035            } else {
3036                if (!message.getContact().isSelf()) {
3037                    activity.switchToContactDetails(message.getContact(), fingerprint);
3038                    return;
3039                }
3040            }
3041        }
3042        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3043    }
3044}