ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.Fragment;
   7import android.app.FragmentManager;
   8import android.app.PendingIntent;
   9import android.content.Context;
  10import android.content.DialogInterface;
  11import android.content.Intent;
  12import android.content.IntentSender.SendIntentException;
  13import android.content.SharedPreferences;
  14import android.content.pm.PackageManager;
  15import android.net.Uri;
  16import android.os.Build;
  17import android.os.Bundle;
  18import android.os.Handler;
  19import android.os.SystemClock;
  20import android.preference.PreferenceManager;
  21import android.provider.MediaStore;
  22import android.text.Editable;
  23import android.text.TextUtils;
  24import android.util.Log;
  25import android.view.ContextMenu;
  26import android.view.ContextMenu.ContextMenuInfo;
  27import android.view.Gravity;
  28import android.view.LayoutInflater;
  29import android.view.Menu;
  30import android.view.MenuInflater;
  31import android.view.MenuItem;
  32import android.view.MotionEvent;
  33import android.view.View;
  34import android.view.View.OnClickListener;
  35import android.view.ViewGroup;
  36import android.view.inputmethod.EditorInfo;
  37import android.view.inputmethod.InputMethodManager;
  38import android.widget.AbsListView;
  39import android.widget.AbsListView.OnScrollListener;
  40import android.widget.AdapterView;
  41import android.widget.AdapterView.AdapterContextMenuInfo;
  42import android.widget.CheckBox;
  43import android.widget.ListView;
  44import android.widget.PopupMenu;
  45import android.widget.TextView.OnEditorActionListener;
  46import android.widget.Toast;
  47
  48import androidx.annotation.IdRes;
  49import androidx.annotation.NonNull;
  50import androidx.annotation.StringRes;
  51import androidx.appcompat.app.AlertDialog;
  52import androidx.core.view.inputmethod.InputConnectionCompat;
  53import androidx.core.view.inputmethod.InputContentInfoCompat;
  54import androidx.databinding.DataBindingUtil;
  55
  56import com.google.common.base.Optional;
  57
  58import java.util.ArrayList;
  59import java.util.Arrays;
  60import java.util.Collection;
  61import java.util.Collections;
  62import java.util.HashSet;
  63import java.util.Iterator;
  64import java.util.List;
  65import java.util.Set;
  66import java.util.UUID;
  67import java.util.concurrent.atomic.AtomicBoolean;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  72import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  73import eu.siacs.conversations.databinding.FragmentConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Blockable;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Conversational;
  79import eu.siacs.conversations.entities.DownloadableFile;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.MucOptions;
  82import eu.siacs.conversations.entities.MucOptions.User;
  83import eu.siacs.conversations.entities.Presence;
  84import eu.siacs.conversations.entities.ReadByMarker;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.http.HttpDownloadConnection;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.Patterns;
 116import eu.siacs.conversations.utils.QuickLoader;
 117import eu.siacs.conversations.utils.StylingHelper;
 118import eu.siacs.conversations.utils.TimeFrameUtils;
 119import eu.siacs.conversations.utils.UIHelper;
 120import eu.siacs.conversations.xml.Namespace;
 121import eu.siacs.conversations.xmpp.Jid;
 122import eu.siacs.conversations.xmpp.XmppConnection;
 123import eu.siacs.conversations.xmpp.chatstate.ChatState;
 124import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 125import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 126import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 127import eu.siacs.conversations.xmpp.jingle.Media;
 128import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 129import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 130
 131import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 132import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 133import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 134import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 135import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 136import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 137
 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 final 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 final OnClickListener leaveMuc = new OnClickListener() {
 196
 197        @Override
 198        public void onClick(View v) {
 199            activity.xmppConnectionService.archiveConversation(conversation);
 200        }
 201    };
 202    private final OnClickListener joinMuc = new OnClickListener() {
 203
 204        @Override
 205        public void onClick(View v) {
 206            activity.xmppConnectionService.joinMuc(conversation);
 207        }
 208    };
 209
 210    private final 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 final 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 final 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 final 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 final 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 final 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 final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 358    private final 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 final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 370    private final 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 final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 404    private final 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 final 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 final 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 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 instanceof ConversationFragment) {
 531            return (ConversationFragment) fragment;
 532        } else {
 533            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 534            return 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:" + latitude + "," + 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 XmppConnectionService service = activity.xmppConnectionService;
 990                final Optional<OngoingRtpSession> ongoingRtpSession = service == null ? Optional.absent() : service.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
 991                if (ongoingRtpSession.isPresent()) {
 992                    menuOngoingCall.setVisible(true);
 993                    menuCall.setVisible(false);
 994                } else {
 995                    menuOngoingCall.setVisible(false);
 996                    final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 997                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 998                    menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 999                }
1000                menuContactDetails.setVisible(!this.conversation.withSelf());
1001                menuMucDetails.setVisible(false);
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        //This should cancel any remaining click events that would otherwise trigger links
1079        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1080        synchronized (this.messageList) {
1081            super.onCreateContextMenu(menu, v, menuInfo);
1082            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1083            this.selectedMessage = this.messageList.get(acmi.position);
1084            populateContextMenu(menu);
1085        }
1086    }
1087
1088    private void populateContextMenu(ContextMenu menu) {
1089        final Message m = this.selectedMessage;
1090        final Transferable t = m.getTransferable();
1091        Message relevantForCorrection = m;
1092        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1093            relevantForCorrection = relevantForCorrection.next();
1094        }
1095        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1096
1097            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1098                return;
1099            }
1100
1101            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1102                return;
1103            }
1104
1105            final boolean deleted = m.isDeleted();
1106            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1107                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1108            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1109            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1110            menu.setHeaderTitle(R.string.message_options);
1111            MenuItem openWith = menu.findItem(R.id.open_with);
1112            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1113            MenuItem copyLink = menu.findItem(R.id.copy_link);
1114            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1115            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1116            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1117            MenuItem shareWith = menu.findItem(R.id.share_with);
1118            MenuItem sendAgain = menu.findItem(R.id.send_again);
1119            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1120            MenuItem downloadFile = menu.findItem(R.id.download_file);
1121            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1122            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1123            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1124            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1125            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1126            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable() && !unInitiatedButKnownSize && t == null) {
1127                copyMessage.setVisible(true);
1128                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1129                String body = m.getMergedBody().toString();
1130                if (ShareUtil.containsXmppUri(body)) {
1131                    copyLink.setTitle(R.string.copy_jabber_id);
1132                    copyLink.setVisible(true);
1133                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1134                    copyLink.setVisible(true);
1135                }
1136            }
1137            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1138                retryDecryption.setVisible(true);
1139            }
1140            if (!showError
1141                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1142                    && !m.isGeoUri()
1143                    && relevantForCorrection.isLastCorrectableMessage()
1144                    && m.getConversation() instanceof Conversation) {
1145                correctMessage.setVisible(true);
1146            }
1147            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable()) && !unInitiatedButKnownSize && t == null) {
1148                shareWith.setVisible(true);
1149            }
1150            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1151                sendAgain.setVisible(true);
1152            }
1153            if (m.hasFileOnRemoteHost()
1154                    || m.isGeoUri()
1155                    || m.treatAsDownloadable()
1156                    || unInitiatedButKnownSize
1157                    || t instanceof HttpDownloadConnection) {
1158                copyUrl.setVisible(true);
1159            }
1160            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1161                downloadFile.setVisible(true);
1162                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1163            }
1164            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1165                    || m.getStatus() == Message.STATUS_UNSEND
1166                    || m.getStatus() == Message.STATUS_OFFERED;
1167            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1168            if (cancelable) {
1169                cancelTransmission.setVisible(true);
1170            }
1171            if (m.isFileOrImage() && !deleted && !cancelable) {
1172                String path = m.getRelativeFilePath();
1173                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1174                    deleteFile.setVisible(true);
1175                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1176                }
1177            }
1178            if (showError) {
1179                showErrorMessage.setVisible(true);
1180            }
1181            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1182            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1183                openWith.setVisible(true);
1184            }
1185        }
1186    }
1187
1188    @Override
1189    public boolean onContextItemSelected(MenuItem item) {
1190        switch (item.getItemId()) {
1191            case R.id.share_with:
1192                ShareUtil.share(activity, selectedMessage);
1193                return true;
1194            case R.id.correct_message:
1195                correctMessage(selectedMessage);
1196                return true;
1197            case R.id.copy_message:
1198                ShareUtil.copyToClipboard(activity, selectedMessage);
1199                return true;
1200            case R.id.copy_link:
1201                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1202                return true;
1203            case R.id.quote_message:
1204                quoteMessage(selectedMessage);
1205                return true;
1206            case R.id.send_again:
1207                resendMessage(selectedMessage);
1208                return true;
1209            case R.id.copy_url:
1210                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1211                return true;
1212            case R.id.download_file:
1213                startDownloadable(selectedMessage);
1214                return true;
1215            case R.id.cancel_transmission:
1216                cancelTransmission(selectedMessage);
1217                return true;
1218            case R.id.retry_decryption:
1219                retryDecryption(selectedMessage);
1220                return true;
1221            case R.id.delete_file:
1222                deleteFile(selectedMessage);
1223                return true;
1224            case R.id.show_error_message:
1225                showErrorMessage(selectedMessage);
1226                return true;
1227            case R.id.open_with:
1228                openWith(selectedMessage);
1229                return true;
1230            default:
1231                return super.onContextItemSelected(item);
1232        }
1233    }
1234
1235    @Override
1236    public boolean onOptionsItemSelected(final MenuItem item) {
1237        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1238            return false;
1239        } else if (conversation == null) {
1240            return super.onOptionsItemSelected(item);
1241        }
1242        switch (item.getItemId()) {
1243            case R.id.encryption_choice_axolotl:
1244            case R.id.encryption_choice_pgp:
1245            case R.id.encryption_choice_none:
1246                handleEncryptionSelection(item);
1247                break;
1248            case R.id.attach_choose_picture:
1249            case R.id.attach_take_picture:
1250            case R.id.attach_record_video:
1251            case R.id.attach_choose_file:
1252            case R.id.attach_record_voice:
1253            case R.id.attach_location:
1254                handleAttachmentSelection(item);
1255                break;
1256            case R.id.action_search:
1257                startSearch();
1258                break;
1259            case R.id.action_archive:
1260                activity.xmppConnectionService.archiveConversation(conversation);
1261                break;
1262            case R.id.action_contact_details:
1263                activity.switchToContactDetails(conversation.getContact());
1264                break;
1265            case R.id.action_muc_details:
1266                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1267                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1268                intent.putExtra("uuid", conversation.getUuid());
1269                startActivity(intent);
1270                break;
1271            case R.id.action_invite:
1272                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1273                break;
1274            case R.id.action_clear_history:
1275                clearHistoryDialog(conversation);
1276                break;
1277            case R.id.action_mute:
1278                muteConversationDialog(conversation);
1279                break;
1280            case R.id.action_unmute:
1281                unmuteConversation(conversation);
1282                break;
1283            case R.id.action_block:
1284            case R.id.action_unblock:
1285                final Activity activity = getActivity();
1286                if (activity instanceof XmppActivity) {
1287                    BlockContactDialog.show((XmppActivity) activity, conversation);
1288                }
1289                break;
1290            case R.id.action_audio_call:
1291                checkPermissionAndTriggerAudioCall();
1292                break;
1293            case R.id.action_video_call:
1294                checkPermissionAndTriggerVideoCall();
1295                break;
1296            case R.id.action_ongoing_call:
1297                returnToOngoingCall();
1298                break;
1299            case R.id.action_toggle_pinned:
1300                togglePinned();
1301                break;
1302            default:
1303                break;
1304        }
1305        return super.onOptionsItemSelected(item);
1306    }
1307
1308    private void startSearch() {
1309        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1310        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1311        startActivity(intent);
1312    }
1313
1314    private void returnToOngoingCall() {
1315        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1316        if (ongoingRtpSession.isPresent()) {
1317            final OngoingRtpSession id = ongoingRtpSession.get();
1318            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1319            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1320            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1321            if (id instanceof AbstractJingleConnection.Id) {
1322                intent.setAction(Intent.ACTION_VIEW);
1323                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1324            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1325                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1326                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1327                } else {
1328                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1329                }
1330            }
1331            startActivity(intent);
1332        }
1333
1334    }
1335
1336    private void togglePinned() {
1337        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1338        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1339        activity.xmppConnectionService.updateConversation(conversation);
1340        activity.invalidateOptionsMenu();
1341    }
1342
1343    private void checkPermissionAndTriggerAudioCall() {
1344        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1345            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1346            return;
1347        }
1348        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1349            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1350        }
1351    }
1352
1353    private void checkPermissionAndTriggerVideoCall() {
1354        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1355            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1356            return;
1357        }
1358        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1359            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1360        }
1361    }
1362
1363
1364    private void triggerRtpSession(final String action) {
1365        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1366            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1367            return;
1368        }
1369
1370        final Contact contact = conversation.getContact();
1371        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1372            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1373        } else {
1374            final RtpCapability.Capability capability;
1375            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1376                capability = RtpCapability.Capability.VIDEO;
1377            } else {
1378                capability = RtpCapability.Capability.AUDIO;
1379            }
1380            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1381                triggerRtpSession(contact.getAccount(), fullJid, action);
1382            });
1383        }
1384    }
1385
1386    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1387        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1388        intent.setAction(action);
1389        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1390        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1391        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1392        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1393        startActivity(intent);
1394    }
1395
1396    private void handleAttachmentSelection(MenuItem item) {
1397        switch (item.getItemId()) {
1398            case R.id.attach_choose_picture:
1399                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1400                break;
1401            case R.id.attach_take_picture:
1402                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1403                break;
1404            case R.id.attach_record_video:
1405                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1406                break;
1407            case R.id.attach_choose_file:
1408                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1409                break;
1410            case R.id.attach_record_voice:
1411                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1412                break;
1413            case R.id.attach_location:
1414                attachFile(ATTACHMENT_CHOICE_LOCATION);
1415                break;
1416        }
1417    }
1418
1419    private void handleEncryptionSelection(MenuItem item) {
1420        if (conversation == null) {
1421            return;
1422        }
1423        final boolean updated;
1424        switch (item.getItemId()) {
1425            case R.id.encryption_choice_none:
1426                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1427                item.setChecked(true);
1428                break;
1429            case R.id.encryption_choice_pgp:
1430                if (activity.hasPgp()) {
1431                    if (conversation.getAccount().getPgpSignature() != null) {
1432                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1433                        item.setChecked(true);
1434                    } else {
1435                        updated = false;
1436                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1437                    }
1438                } else {
1439                    activity.showInstallPgpDialog();
1440                    updated = false;
1441                }
1442                break;
1443            case R.id.encryption_choice_axolotl:
1444                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1445                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1446                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1447                item.setChecked(true);
1448                break;
1449            default:
1450                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1451                break;
1452        }
1453        if (updated) {
1454            activity.xmppConnectionService.updateConversation(conversation);
1455        }
1456        updateChatMsgHint();
1457        getActivity().invalidateOptionsMenu();
1458        activity.refreshUi();
1459    }
1460
1461    public void attachFile(final int attachmentChoice) {
1462        attachFile(attachmentChoice, true);
1463    }
1464
1465    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1466        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1467            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1468                return;
1469            }
1470        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1471            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1472                return;
1473            }
1474        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1475            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1476                return;
1477            }
1478        }
1479        if (updateRecentlyUsed) {
1480            storeRecentlyUsedQuickAction(attachmentChoice);
1481        }
1482        final int encryption = conversation.getNextEncryption();
1483        final int mode = conversation.getMode();
1484        if (encryption == Message.ENCRYPTION_PGP) {
1485            if (activity.hasPgp()) {
1486                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1487                    activity.xmppConnectionService.getPgpEngine().hasKey(
1488                            conversation.getContact(),
1489                            new UiCallback<Contact>() {
1490
1491                                @Override
1492                                public void userInputRequired(PendingIntent pi, Contact contact) {
1493                                    startPendingIntent(pi, attachmentChoice);
1494                                }
1495
1496                                @Override
1497                                public void success(Contact contact) {
1498                                    invokeAttachFileIntent(attachmentChoice);
1499                                }
1500
1501                                @Override
1502                                public void error(int error, Contact contact) {
1503                                    activity.replaceToast(getString(error));
1504                                }
1505                            });
1506                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1507                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1508                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1509                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1510                        warning.show();
1511                    }
1512                    invokeAttachFileIntent(attachmentChoice);
1513                } else {
1514                    showNoPGPKeyDialog(false, (dialog, which) -> {
1515                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1516                        activity.xmppConnectionService.updateConversation(conversation);
1517                        invokeAttachFileIntent(attachmentChoice);
1518                    });
1519                }
1520            } else {
1521                activity.showInstallPgpDialog();
1522            }
1523        } else {
1524            invokeAttachFileIntent(attachmentChoice);
1525        }
1526    }
1527
1528    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1529        try {
1530            activity.getPreferences().edit()
1531                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1532                    .apply();
1533        } catch (IllegalArgumentException e) {
1534            //just do not save
1535        }
1536    }
1537
1538    @Override
1539    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1540        if (grantResults.length > 0) {
1541            if (allGranted(grantResults)) {
1542                switch (requestCode) {
1543                    case REQUEST_START_DOWNLOAD:
1544                        if (this.mPendingDownloadableMessage != null) {
1545                            startDownloadable(this.mPendingDownloadableMessage);
1546                        }
1547                        break;
1548                    case REQUEST_ADD_EDITOR_CONTENT:
1549                        if (this.mPendingEditorContent != null) {
1550                            attachEditorContentToConversation(this.mPendingEditorContent);
1551                        }
1552                        break;
1553                    case REQUEST_COMMIT_ATTACHMENTS:
1554                        commitAttachments();
1555                        break;
1556                    case REQUEST_START_AUDIO_CALL:
1557                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1558                        break;
1559                    case REQUEST_START_VIDEO_CALL:
1560                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1561                        break;
1562                    default:
1563                        attachFile(requestCode);
1564                        break;
1565                }
1566            } else {
1567                @StringRes int res;
1568                String firstDenied = getFirstDenied(grantResults, permissions);
1569                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1570                    res = R.string.no_microphone_permission;
1571                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1572                    res = R.string.no_camera_permission;
1573                } else {
1574                    res = R.string.no_storage_permission;
1575                }
1576                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1577            }
1578        }
1579        if (writeGranted(grantResults, permissions)) {
1580            if (activity != null && activity.xmppConnectionService != null) {
1581                activity.xmppConnectionService.restartFileObserver();
1582            }
1583            refresh();
1584        }
1585    }
1586
1587    public void startDownloadable(Message message) {
1588        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1589            this.mPendingDownloadableMessage = message;
1590            return;
1591        }
1592        Transferable transferable = message.getTransferable();
1593        if (transferable != null) {
1594            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1595                createNewConnection(message);
1596                return;
1597            }
1598            if (!transferable.start()) {
1599                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1600                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1601            }
1602        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1603            createNewConnection(message);
1604        } else {
1605            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1606        }
1607    }
1608
1609    private void createNewConnection(final Message message) {
1610        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1611            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1612            return;
1613        }
1614        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1615    }
1616
1617    @SuppressLint("InflateParams")
1618    protected void clearHistoryDialog(final Conversation conversation) {
1619        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1620        builder.setTitle(getString(R.string.clear_conversation_history));
1621        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1622        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1623        builder.setView(dialogView);
1624        builder.setNegativeButton(getString(R.string.cancel), null);
1625        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1626            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1627            if (endConversationCheckBox.isChecked()) {
1628                this.activity.xmppConnectionService.archiveConversation(conversation);
1629                this.activity.onConversationArchived(conversation);
1630            } else {
1631                activity.onConversationsListItemUpdated();
1632                refresh();
1633            }
1634        });
1635        builder.create().show();
1636    }
1637
1638    protected void muteConversationDialog(final Conversation conversation) {
1639        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1640        builder.setTitle(R.string.disable_notifications);
1641        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1642        final CharSequence[] labels = new CharSequence[durations.length];
1643        for (int i = 0; i < durations.length; ++i) {
1644            if (durations[i] == -1) {
1645                labels[i] = getString(R.string.until_further_notice);
1646            } else {
1647                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1648            }
1649        }
1650        builder.setItems(labels, (dialog, which) -> {
1651            final long till;
1652            if (durations[which] == -1) {
1653                till = Long.MAX_VALUE;
1654            } else {
1655                till = System.currentTimeMillis() + (durations[which] * 1000);
1656            }
1657            conversation.setMutedTill(till);
1658            activity.xmppConnectionService.updateConversation(conversation);
1659            activity.onConversationsListItemUpdated();
1660            refresh();
1661            getActivity().invalidateOptionsMenu();
1662        });
1663        builder.create().show();
1664    }
1665
1666    private boolean hasPermissions(int requestCode, String... permissions) {
1667        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1668            final List<String> missingPermissions = new ArrayList<>();
1669            for (String permission : permissions) {
1670                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1671                    continue;
1672                }
1673                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1674                    missingPermissions.add(permission);
1675                }
1676            }
1677            if (missingPermissions.size() == 0) {
1678                return true;
1679            } else {
1680                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1681                return false;
1682            }
1683        } else {
1684            return true;
1685        }
1686    }
1687
1688    public void unmuteConversation(final Conversation conversation) {
1689        conversation.setMutedTill(0);
1690        this.activity.xmppConnectionService.updateConversation(conversation);
1691        this.activity.onConversationsListItemUpdated();
1692        refresh();
1693        getActivity().invalidateOptionsMenu();
1694    }
1695
1696
1697    protected void invokeAttachFileIntent(final int attachmentChoice) {
1698        Intent intent = new Intent();
1699        boolean chooser = false;
1700        switch (attachmentChoice) {
1701            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1702                intent.setAction(Intent.ACTION_GET_CONTENT);
1703                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1704                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1705                }
1706                intent.setType("image/*");
1707                chooser = true;
1708                break;
1709            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1710                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1711                break;
1712            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1713                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1714                pendingTakePhotoUri.push(uri);
1715                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1716                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1717                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1718                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1719                break;
1720            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1721                chooser = true;
1722                intent.setType("*/*");
1723                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1724                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1725                }
1726                intent.addCategory(Intent.CATEGORY_OPENABLE);
1727                intent.setAction(Intent.ACTION_GET_CONTENT);
1728                break;
1729            case ATTACHMENT_CHOICE_RECORD_VOICE:
1730                intent = new Intent(getActivity(), RecordingActivity.class);
1731                break;
1732            case ATTACHMENT_CHOICE_LOCATION:
1733                intent = GeoHelper.getFetchIntent(activity);
1734                break;
1735        }
1736        final Context context = getActivity();
1737        if (context == null) {
1738            return;
1739        }
1740        if (intent.resolveActivity(context.getPackageManager()) != null) {
1741            if (chooser) {
1742                startActivityForResult(
1743                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1744                        attachmentChoice);
1745            } else {
1746                startActivityForResult(intent, attachmentChoice);
1747            }
1748        } else {
1749            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
1750        }
1751    }
1752
1753    @Override
1754    public void onResume() {
1755        super.onResume();
1756        binding.messagesView.post(this::fireReadEvent);
1757    }
1758
1759    private void fireReadEvent() {
1760        if (activity != null && this.conversation != null) {
1761            String uuid = getLastVisibleMessageUuid();
1762            if (uuid != null) {
1763                activity.onConversationRead(this.conversation, uuid);
1764            }
1765        }
1766    }
1767
1768    private String getLastVisibleMessageUuid() {
1769        if (binding == null) {
1770            return null;
1771        }
1772        synchronized (this.messageList) {
1773            int pos = binding.messagesView.getLastVisiblePosition();
1774            if (pos >= 0) {
1775                Message message = null;
1776                for (int i = pos; i >= 0; --i) {
1777                    try {
1778                        message = (Message) binding.messagesView.getItemAtPosition(i);
1779                    } catch (IndexOutOfBoundsException e) {
1780                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1781                        continue;
1782                    }
1783                    if (message.getType() != Message.TYPE_STATUS) {
1784                        break;
1785                    }
1786                }
1787                if (message != null) {
1788                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1789                        message = message.next();
1790                    }
1791                    return message.getUuid();
1792                }
1793            }
1794        }
1795        return null;
1796    }
1797
1798    private void openWith(final Message message) {
1799        if (message.isGeoUri()) {
1800            GeoHelper.view(getActivity(), message);
1801        } else {
1802            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1803            ViewUtil.view(activity, file);
1804        }
1805    }
1806
1807    private void showErrorMessage(final Message message) {
1808        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1809        builder.setTitle(R.string.error_message);
1810        final String errorMessage = message.getErrorMessage();
1811        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1812        final String displayError;
1813        if (errorMessageParts.length == 2) {
1814            displayError = errorMessageParts[1];
1815        } else {
1816            displayError = errorMessage;
1817        }
1818        builder.setMessage(displayError);
1819        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1820            activity.copyTextToClipboard(displayError, R.string.error_message);
1821            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1822        });
1823        builder.setPositiveButton(R.string.confirm, null);
1824        builder.create().show();
1825    }
1826
1827
1828    private void deleteFile(final Message message) {
1829        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1830        builder.setNegativeButton(R.string.cancel, null);
1831        builder.setTitle(R.string.delete_file_dialog);
1832        builder.setMessage(R.string.delete_file_dialog_msg);
1833        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1834            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1835                message.setDeleted(true);
1836                activity.xmppConnectionService.evictPreview(message.getUuid());
1837                activity.xmppConnectionService.updateMessage(message, false);
1838                activity.onConversationsListItemUpdated();
1839                refresh();
1840            }
1841        });
1842        builder.create().show();
1843
1844    }
1845
1846    private void resendMessage(final Message message) {
1847        if (message.isFileOrImage()) {
1848            if (!(message.getConversation() instanceof Conversation)) {
1849                return;
1850            }
1851            final Conversation conversation = (Conversation) message.getConversation();
1852            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1853            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1854                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1855                if (!message.hasFileOnRemoteHost()
1856                        && xmppConnection != null
1857                        && conversation.getMode() == Conversational.MODE_SINGLE
1858                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1859                    activity.selectPresence(conversation, () -> {
1860                        message.setCounterpart(conversation.getNextCounterpart());
1861                        activity.xmppConnectionService.resendFailedMessages(message);
1862                        new Handler().post(() -> {
1863                            int size = messageList.size();
1864                            this.binding.messagesView.setSelection(size - 1);
1865                        });
1866                    });
1867                    return;
1868                }
1869            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1870                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1871                return;
1872            } else {
1873                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1874                message.setDeleted(true);
1875                activity.xmppConnectionService.updateMessage(message, false);
1876                activity.onConversationsListItemUpdated();
1877                refresh();
1878                return;
1879            }
1880        }
1881        activity.xmppConnectionService.resendFailedMessages(message);
1882        new Handler().post(() -> {
1883            int size = messageList.size();
1884            this.binding.messagesView.setSelection(size - 1);
1885        });
1886    }
1887
1888    private void cancelTransmission(Message message) {
1889        Transferable transferable = message.getTransferable();
1890        if (transferable != null) {
1891            transferable.cancel();
1892        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1893            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1894        }
1895    }
1896
1897    private void retryDecryption(Message message) {
1898        message.setEncryption(Message.ENCRYPTION_PGP);
1899        activity.onConversationsListItemUpdated();
1900        refresh();
1901        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1902    }
1903
1904    public void privateMessageWith(final Jid counterpart) {
1905        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1906            activity.xmppConnectionService.sendChatState(conversation);
1907        }
1908        this.binding.textinput.setText("");
1909        this.conversation.setNextCounterpart(counterpart);
1910        updateChatMsgHint();
1911        updateSendButton();
1912        updateEditablity();
1913    }
1914
1915    private void correctMessage(Message message) {
1916        while (message.mergeable(message.next())) {
1917            message = message.next();
1918        }
1919        this.conversation.setCorrectingMessage(message);
1920        final Editable editable = binding.textinput.getText();
1921        this.conversation.setDraftMessage(editable.toString());
1922        this.binding.textinput.setText("");
1923        this.binding.textinput.append(message.getBody());
1924
1925    }
1926
1927    private void highlightInConference(String nick) {
1928        final Editable editable = this.binding.textinput.getText();
1929        String oldString = editable.toString().trim();
1930        final int pos = this.binding.textinput.getSelectionStart();
1931        if (oldString.isEmpty() || pos == 0) {
1932            editable.insert(0, nick + ": ");
1933        } else {
1934            final char before = editable.charAt(pos - 1);
1935            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1936            if (before == '\n') {
1937                editable.insert(pos, nick + ": ");
1938            } else {
1939                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1940                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1941                        editable.insert(pos - 2, ", " + nick);
1942                        return;
1943                    }
1944                }
1945                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1946                if (Character.isWhitespace(after)) {
1947                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1948                }
1949            }
1950        }
1951    }
1952
1953    @Override
1954    public void startActivityForResult(Intent intent, int requestCode) {
1955        final Activity activity = getActivity();
1956        if (activity instanceof ConversationsActivity) {
1957            ((ConversationsActivity) activity).clearPendingViewIntent();
1958        }
1959        super.startActivityForResult(intent, requestCode);
1960    }
1961
1962    @Override
1963    public void onSaveInstanceState(Bundle outState) {
1964        super.onSaveInstanceState(outState);
1965        if (conversation != null) {
1966            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1967            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1968            final Uri uri = pendingTakePhotoUri.peek();
1969            if (uri != null) {
1970                outState.putString(STATE_PHOTO_URI, uri.toString());
1971            }
1972            final ScrollState scrollState = getScrollPosition();
1973            if (scrollState != null) {
1974                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1975            }
1976            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1977            if (attachments.size() > 0) {
1978                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1979            }
1980        }
1981    }
1982
1983    @Override
1984    public void onActivityCreated(Bundle savedInstanceState) {
1985        super.onActivityCreated(savedInstanceState);
1986        if (savedInstanceState == null) {
1987            return;
1988        }
1989        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1990        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1991        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1992        if (uuid != null) {
1993            QuickLoader.set(uuid);
1994            this.pendingConversationsUuid.push(uuid);
1995            if (attachments != null && attachments.size() > 0) {
1996                this.pendingMediaPreviews.push(attachments);
1997            }
1998            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1999            if (takePhotoUri != null) {
2000                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2001            }
2002            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2003        }
2004    }
2005
2006    @Override
2007    public void onStart() {
2008        super.onStart();
2009        if (this.reInitRequiredOnStart && this.conversation != null) {
2010            final Bundle extras = pendingExtras.pop();
2011            reInit(this.conversation, extras != null);
2012            if (extras != null) {
2013                processExtras(extras);
2014            }
2015        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2016            final String uuid = pendingConversationsUuid.pop();
2017            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2018            if (uuid != null) {
2019                findAndReInitByUuidOrArchive(uuid);
2020            }
2021        }
2022    }
2023
2024    @Override
2025    public void onStop() {
2026        super.onStop();
2027        final Activity activity = getActivity();
2028        messageListAdapter.unregisterListenerInAudioPlayer();
2029        if (activity == null || !activity.isChangingConfigurations()) {
2030            hideSoftKeyboard(activity);
2031            messageListAdapter.stopAudioPlayer();
2032        }
2033        if (this.conversation != null) {
2034            final String msg = this.binding.textinput.getText().toString();
2035            storeNextMessage(msg);
2036            updateChatState(this.conversation, msg);
2037            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2038        }
2039        this.reInitRequiredOnStart = true;
2040    }
2041
2042    private void updateChatState(final Conversation conversation, final String msg) {
2043        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2044        Account.State status = conversation.getAccount().getStatus();
2045        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2046            activity.xmppConnectionService.sendChatState(conversation);
2047        }
2048    }
2049
2050    private void saveMessageDraftStopAudioPlayer() {
2051        final Conversation previousConversation = this.conversation;
2052        if (this.activity == null || this.binding == null || previousConversation == null) {
2053            return;
2054        }
2055        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2056        final String msg = this.binding.textinput.getText().toString();
2057        storeNextMessage(msg);
2058        updateChatState(this.conversation, msg);
2059        messageListAdapter.stopAudioPlayer();
2060        mediaPreviewAdapter.clearPreviews();
2061        toggleInputMethod();
2062    }
2063
2064    public void reInit(final Conversation conversation, final Bundle extras) {
2065        QuickLoader.set(conversation.getUuid());
2066        final boolean changedConversation = this.conversation != conversation;
2067        if (changedConversation) {
2068            this.saveMessageDraftStopAudioPlayer();
2069        }
2070        this.clearPending();
2071        if (this.reInit(conversation, extras != null)) {
2072            if (extras != null) {
2073                processExtras(extras);
2074            }
2075            this.reInitRequiredOnStart = false;
2076        } else {
2077            this.reInitRequiredOnStart = true;
2078            pendingExtras.push(extras);
2079        }
2080        resetUnreadMessagesCount();
2081    }
2082
2083    private void reInit(Conversation conversation) {
2084        reInit(conversation, false);
2085    }
2086
2087    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2088        if (conversation == null) {
2089            return false;
2090        }
2091        this.conversation = conversation;
2092        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2093        if (this.activity == null || this.binding == null) {
2094            return false;
2095        }
2096
2097        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2098            activity.onConversationArchived(this.conversation);
2099            return false;
2100        }
2101
2102        stopScrolling();
2103        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2104
2105        if (this.conversation.isRead() && hasExtras) {
2106            Log.d(Config.LOGTAG, "trimming conversation");
2107            this.conversation.trim();
2108        }
2109
2110        setupIme();
2111
2112        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2113
2114        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2115        this.binding.textinput.setKeyboardListener(null);
2116        this.binding.textinput.setText("");
2117        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2118        if (participating) {
2119            this.binding.textinput.append(this.conversation.getNextMessage());
2120        }
2121        this.binding.textinput.setKeyboardListener(this);
2122        messageListAdapter.updatePreferences();
2123        refresh(false);
2124        activity.invalidateOptionsMenu();
2125        this.conversation.messagesLoaded.set(true);
2126        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2127
2128        if (hasExtras || scrolledToBottomAndNoPending) {
2129            resetUnreadMessagesCount();
2130            synchronized (this.messageList) {
2131                Log.d(Config.LOGTAG, "jump to first unread message");
2132                final Message first = conversation.getFirstUnreadMessage();
2133                final int bottom = Math.max(0, this.messageList.size() - 1);
2134                final int pos;
2135                final boolean jumpToBottom;
2136                if (first == null) {
2137                    pos = bottom;
2138                    jumpToBottom = true;
2139                } else {
2140                    int i = getIndexOf(first.getUuid(), this.messageList);
2141                    pos = i < 0 ? bottom : i;
2142                    jumpToBottom = false;
2143                }
2144                setSelection(pos, jumpToBottom);
2145            }
2146        }
2147
2148
2149        this.binding.messagesView.post(this::fireReadEvent);
2150        //TODO if we only do this when this fragment is running on main it won't *bing* in tablet layout which might be unnecessary since we can *see* it
2151        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2152        return true;
2153    }
2154
2155    private void resetUnreadMessagesCount() {
2156        lastMessageUuid = null;
2157        hideUnreadMessagesCount();
2158    }
2159
2160    private void hideUnreadMessagesCount() {
2161        if (this.binding == null) {
2162            return;
2163        }
2164        this.binding.scrollToBottomButton.setEnabled(false);
2165        this.binding.scrollToBottomButton.hide();
2166        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2167    }
2168
2169    private void setSelection(int pos, boolean jumpToBottom) {
2170        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2171        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2172        this.binding.messagesView.post(this::fireReadEvent);
2173    }
2174
2175
2176    private boolean scrolledToBottom() {
2177        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2178    }
2179
2180    private void processExtras(final Bundle extras) {
2181        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2182        final String text = extras.getString(Intent.EXTRA_TEXT);
2183        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2184        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2185        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2186        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2187        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2188        final List<Uri> uris = extractUris(extras);
2189        if (uris != null && uris.size() > 0) {
2190            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2191                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2192            } else {
2193                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2194                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2195            }
2196            toggleInputMethod();
2197            return;
2198        }
2199        if (nick != null) {
2200            if (pm) {
2201                Jid jid = conversation.getJid();
2202                try {
2203                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2204                    privateMessageWith(next);
2205                } catch (final IllegalArgumentException ignored) {
2206                    //do nothing
2207                }
2208            } else {
2209                final MucOptions mucOptions = conversation.getMucOptions();
2210                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2211                    highlightInConference(nick);
2212                }
2213            }
2214        } else {
2215            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2216                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2217                toggleInputMethod();
2218                return;
2219            } else if (text != null && asQuote) {
2220                quoteText(text);
2221            } else {
2222                appendText(text, doNotAppend);
2223            }
2224        }
2225        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2226            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2227            return;
2228        }
2229        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2230        if (message != null) {
2231            startDownloadable(message);
2232        }
2233    }
2234
2235    private List<Uri> extractUris(final Bundle extras) {
2236        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2237        if (uris != null) {
2238            return uris;
2239        }
2240        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2241        if (uri != null) {
2242            return Collections.singletonList(uri);
2243        } else {
2244            return null;
2245        }
2246    }
2247
2248    private List<Uri> cleanUris(final List<Uri> uris) {
2249        Iterator<Uri> iterator = uris.iterator();
2250        while (iterator.hasNext()) {
2251            final Uri uri = iterator.next();
2252            if (FileBackend.weOwnFile(getActivity(), uri)) {
2253                iterator.remove();
2254                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2255            }
2256        }
2257        return uris;
2258    }
2259
2260    private boolean showBlockSubmenu(View view) {
2261        final Jid jid = conversation.getJid();
2262        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2263        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2264        popupMenu.inflate(R.menu.block);
2265        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2266        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2267        popupMenu.setOnMenuItemClickListener(menuItem -> {
2268            Blockable blockable;
2269            switch (menuItem.getItemId()) {
2270                case R.id.reject:
2271                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2272                    updateSnackBar(conversation);
2273                    return true;
2274                case R.id.block_domain:
2275                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2276                    break;
2277                default:
2278                    blockable = conversation;
2279            }
2280            BlockContactDialog.show(activity, blockable);
2281            return true;
2282        });
2283        popupMenu.show();
2284        return true;
2285    }
2286
2287    private void updateSnackBar(final Conversation conversation) {
2288        final Account account = conversation.getAccount();
2289        final XmppConnection connection = account.getXmppConnection();
2290        final int mode = conversation.getMode();
2291        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2292        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2293            return;
2294        }
2295        if (account.getStatus() == Account.State.DISABLED) {
2296            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2297        } else if (conversation.isBlocked()) {
2298            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2299        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2300            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2301        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2302            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2303        } else if (mode == Conversation.MODE_MULTI
2304                && !conversation.getMucOptions().online()
2305                && account.getStatus() == Account.State.ONLINE) {
2306            switch (conversation.getMucOptions().getError()) {
2307                case NICK_IN_USE:
2308                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2309                    break;
2310                case NO_RESPONSE:
2311                    showSnackbar(R.string.joining_conference, 0, null);
2312                    break;
2313                case SERVER_NOT_FOUND:
2314                    if (conversation.receivedMessagesCount() > 0) {
2315                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2316                    } else {
2317                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2318                    }
2319                    break;
2320                case REMOTE_SERVER_TIMEOUT:
2321                    if (conversation.receivedMessagesCount() > 0) {
2322                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2323                    } else {
2324                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2325                    }
2326                    break;
2327                case PASSWORD_REQUIRED:
2328                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2329                    break;
2330                case BANNED:
2331                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2332                    break;
2333                case MEMBERS_ONLY:
2334                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2335                    break;
2336                case RESOURCE_CONSTRAINT:
2337                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2338                    break;
2339                case KICKED:
2340                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2341                    break;
2342                case UNKNOWN:
2343                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2344                    break;
2345                case INVALID_NICK:
2346                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2347                case SHUTDOWN:
2348                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2349                    break;
2350                case DESTROYED:
2351                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2352                    break;
2353                case NON_ANONYMOUS:
2354                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2355                    break;
2356                default:
2357                    hideSnackbar();
2358                    break;
2359            }
2360        } else if (account.hasPendingPgpIntent(conversation)) {
2361            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2362        } else if (connection != null
2363                && connection.getFeatures().blocking()
2364                && conversation.countMessages() != 0
2365                && !conversation.isBlocked()
2366                && conversation.isWithStranger()) {
2367            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2368        } else {
2369            hideSnackbar();
2370        }
2371    }
2372
2373    @Override
2374    public void refresh() {
2375        if (this.binding == null) {
2376            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2377            return;
2378        }
2379        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2380            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2381                activity.onConversationArchived(this.conversation);
2382                return;
2383            }
2384        }
2385        this.refresh(true);
2386    }
2387
2388    private void refresh(boolean notifyConversationRead) {
2389        synchronized (this.messageList) {
2390            if (this.conversation != null) {
2391                conversation.populateWithMessages(this.messageList);
2392                updateSnackBar(conversation);
2393                updateStatusMessages();
2394                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2395                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2396                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2397                }
2398                this.messageListAdapter.notifyDataSetChanged();
2399                updateChatMsgHint();
2400                if (notifyConversationRead && activity != null) {
2401                    binding.messagesView.post(this::fireReadEvent);
2402                }
2403                updateSendButton();
2404                updateEditablity();
2405            }
2406        }
2407    }
2408
2409    protected void messageSent() {
2410        mSendingPgpMessage.set(false);
2411        this.binding.textinput.setText("");
2412        if (conversation.setCorrectingMessage(null)) {
2413            this.binding.textinput.append(conversation.getDraftMessage());
2414            conversation.setDraftMessage(null);
2415        }
2416        storeNextMessage();
2417        updateChatMsgHint();
2418        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2419        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2420        if (prefScrollToBottom || scrolledToBottom()) {
2421            new Handler().post(() -> {
2422                int size = messageList.size();
2423                this.binding.messagesView.setSelection(size - 1);
2424            });
2425        }
2426    }
2427
2428    private boolean storeNextMessage() {
2429        return storeNextMessage(this.binding.textinput.getText().toString());
2430    }
2431
2432    private boolean storeNextMessage(String msg) {
2433        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2434        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2435            this.activity.xmppConnectionService.updateConversation(this.conversation);
2436            return true;
2437        }
2438        return false;
2439    }
2440
2441    public void doneSendingPgpMessage() {
2442        mSendingPgpMessage.set(false);
2443    }
2444
2445    public long getMaxHttpUploadSize(Conversation conversation) {
2446        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2447        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2448    }
2449
2450    private void updateEditablity() {
2451        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2452        this.binding.textinput.setFocusable(canWrite);
2453        this.binding.textinput.setFocusableInTouchMode(canWrite);
2454        this.binding.textSendButton.setEnabled(canWrite);
2455        this.binding.textinput.setCursorVisible(canWrite);
2456        this.binding.textinput.setEnabled(canWrite);
2457    }
2458
2459    public void updateSendButton() {
2460        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2461        final Conversation c = this.conversation;
2462        final Presence.Status status;
2463        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2464        final SendButtonAction action;
2465        if (hasAttachments) {
2466            action = SendButtonAction.TEXT;
2467        } else {
2468            action = SendButtonTool.getAction(getActivity(), c, text);
2469        }
2470        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2471            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2472                status = Presence.Status.OFFLINE;
2473            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2474                status = c.getContact().getShownStatus();
2475            } else {
2476                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2477            }
2478        } else {
2479            status = Presence.Status.OFFLINE;
2480        }
2481        this.binding.textSendButton.setTag(action);
2482        final Activity activity = getActivity();
2483        if (activity != null) {
2484            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2485        }
2486    }
2487
2488    protected void updateStatusMessages() {
2489        DateSeparator.addAll(this.messageList);
2490        if (showLoadMoreMessages(conversation)) {
2491            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2492        }
2493        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2494            ChatState state = conversation.getIncomingChatState();
2495            if (state == ChatState.COMPOSING) {
2496                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2497            } else if (state == ChatState.PAUSED) {
2498                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2499            } else {
2500                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2501                    final Message message = this.messageList.get(i);
2502                    if (message.getType() != Message.TYPE_STATUS) {
2503                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2504                            return;
2505                        } else {
2506                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2507                                this.messageList.add(i + 1,
2508                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2509                                return;
2510                            }
2511                        }
2512                    }
2513                }
2514            }
2515        } else {
2516            final MucOptions mucOptions = conversation.getMucOptions();
2517            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2518            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2519            ChatState state = ChatState.COMPOSING;
2520            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2521            if (users.size() == 0) {
2522                state = ChatState.PAUSED;
2523                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2524            }
2525            if (mucOptions.isPrivateAndNonAnonymous()) {
2526                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2527                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2528                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2529                    for (ReadByMarker marker : markersForMessage) {
2530                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2531                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2532                            MucOptions.User user = mucOptions.findUser(marker);
2533                            if (user != null && !users.contains(user)) {
2534                                shownMarkers.add(user);
2535                            }
2536                        }
2537                    }
2538                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2539                    final Message statusMessage;
2540                    final int size = shownMarkers.size();
2541                    if (size > 1) {
2542                        final String body;
2543                        if (size <= 4) {
2544                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2545                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2546                            body = getString(R.string.everyone_has_read_up_to_this_point);
2547                        } else {
2548                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2549                        }
2550                        statusMessage = Message.createStatusMessage(conversation, body);
2551                        statusMessage.setCounterparts(shownMarkers);
2552                    } else if (size == 1) {
2553                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2554                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2555                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2556                    } else {
2557                        statusMessage = null;
2558                    }
2559                    if (statusMessage != null) {
2560                        this.messageList.add(i + 1, statusMessage);
2561                    }
2562                    addedMarkers.add(markerForSender);
2563                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2564                        break;
2565                    }
2566                }
2567            }
2568            if (users.size() > 0) {
2569                Message statusMessage;
2570                if (users.size() == 1) {
2571                    MucOptions.User user = users.get(0);
2572                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2573                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2574                    statusMessage.setTrueCounterpart(user.getRealJid());
2575                    statusMessage.setCounterpart(user.getFullJid());
2576                } else {
2577                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2578                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2579                    statusMessage.setCounterparts(users);
2580                }
2581                this.messageList.add(statusMessage);
2582            }
2583
2584        }
2585    }
2586
2587    private void stopScrolling() {
2588        long now = SystemClock.uptimeMillis();
2589        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2590        binding.messagesView.dispatchTouchEvent(cancel);
2591    }
2592
2593    private boolean showLoadMoreMessages(final Conversation c) {
2594        if (activity == null || activity.xmppConnectionService == null) {
2595            return false;
2596        }
2597        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2598        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2599        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2600    }
2601
2602    private boolean hasMamSupport(final Conversation c) {
2603        if (c.getMode() == Conversation.MODE_SINGLE) {
2604            final XmppConnection connection = c.getAccount().getXmppConnection();
2605            return connection != null && connection.getFeatures().mam();
2606        } else {
2607            return c.getMucOptions().mamSupport();
2608        }
2609    }
2610
2611    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2612        showSnackbar(message, action, clickListener, null);
2613    }
2614
2615    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2616        this.binding.snackbar.setVisibility(View.VISIBLE);
2617        this.binding.snackbar.setOnClickListener(null);
2618        this.binding.snackbarMessage.setText(message);
2619        this.binding.snackbarMessage.setOnClickListener(null);
2620        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2621        if (action != 0) {
2622            this.binding.snackbarAction.setText(action);
2623        }
2624        this.binding.snackbarAction.setOnClickListener(clickListener);
2625        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2626    }
2627
2628    protected void hideSnackbar() {
2629        this.binding.snackbar.setVisibility(View.GONE);
2630    }
2631
2632    protected void sendMessage(Message message) {
2633        activity.xmppConnectionService.sendMessage(message);
2634        messageSent();
2635    }
2636
2637    protected void sendPgpMessage(final Message message) {
2638        final XmppConnectionService xmppService = activity.xmppConnectionService;
2639        final Contact contact = message.getConversation().getContact();
2640        if (!activity.hasPgp()) {
2641            activity.showInstallPgpDialog();
2642            return;
2643        }
2644        if (conversation.getAccount().getPgpSignature() == null) {
2645            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2646            return;
2647        }
2648        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2649            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2650        }
2651        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2652            if (contact.getPgpKeyId() != 0) {
2653                xmppService.getPgpEngine().hasKey(contact,
2654                        new UiCallback<Contact>() {
2655
2656                            @Override
2657                            public void userInputRequired(PendingIntent pi, Contact contact) {
2658                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2659                            }
2660
2661                            @Override
2662                            public void success(Contact contact) {
2663                                encryptTextMessage(message);
2664                            }
2665
2666                            @Override
2667                            public void error(int error, Contact contact) {
2668                                activity.runOnUiThread(() -> Toast.makeText(activity,
2669                                        R.string.unable_to_connect_to_keychain,
2670                                        Toast.LENGTH_SHORT
2671                                ).show());
2672                                mSendingPgpMessage.set(false);
2673                            }
2674                        });
2675
2676            } else {
2677                showNoPGPKeyDialog(false, (dialog, which) -> {
2678                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2679                    xmppService.updateConversation(conversation);
2680                    message.setEncryption(Message.ENCRYPTION_NONE);
2681                    xmppService.sendMessage(message);
2682                    messageSent();
2683                });
2684            }
2685        } else {
2686            if (conversation.getMucOptions().pgpKeysInUse()) {
2687                if (!conversation.getMucOptions().everybodyHasKeys()) {
2688                    Toast warning = Toast
2689                            .makeText(getActivity(),
2690                                    R.string.missing_public_keys,
2691                                    Toast.LENGTH_LONG);
2692                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2693                    warning.show();
2694                }
2695                encryptTextMessage(message);
2696            } else {
2697                showNoPGPKeyDialog(true, (dialog, which) -> {
2698                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2699                    message.setEncryption(Message.ENCRYPTION_NONE);
2700                    xmppService.updateConversation(conversation);
2701                    xmppService.sendMessage(message);
2702                    messageSent();
2703                });
2704            }
2705        }
2706    }
2707
2708    public void encryptTextMessage(Message message) {
2709        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2710                new UiCallback<Message>() {
2711
2712                    @Override
2713                    public void userInputRequired(PendingIntent pi, Message message) {
2714                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2715                    }
2716
2717                    @Override
2718                    public void success(Message message) {
2719                        //TODO the following two call can be made before the callback
2720                        getActivity().runOnUiThread(() -> messageSent());
2721                    }
2722
2723                    @Override
2724                    public void error(final int error, Message message) {
2725                        getActivity().runOnUiThread(() -> {
2726                            doneSendingPgpMessage();
2727                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2728                        });
2729
2730                    }
2731                });
2732    }
2733
2734    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2735        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2736        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2737        if (plural) {
2738            builder.setTitle(getString(R.string.no_pgp_keys));
2739            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2740        } else {
2741            builder.setTitle(getString(R.string.no_pgp_key));
2742            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2743        }
2744        builder.setNegativeButton(getString(R.string.cancel), null);
2745        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2746        builder.create().show();
2747    }
2748
2749    public void appendText(String text, final boolean doNotAppend) {
2750        if (text == null) {
2751            return;
2752        }
2753        final Editable editable = this.binding.textinput.getText();
2754        String previous = editable == null ? "" : editable.toString();
2755        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2756            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2757            return;
2758        }
2759        if (UIHelper.isLastLineQuote(previous)) {
2760            text = '\n' + text;
2761        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2762            text = " " + text;
2763        }
2764        this.binding.textinput.append(text);
2765    }
2766
2767    @Override
2768    public boolean onEnterPressed(final boolean isCtrlPressed) {
2769        if (isCtrlPressed || enterIsSend()) {
2770            sendMessage();
2771            return true;
2772        }
2773        return false;
2774    }
2775
2776    private boolean enterIsSend() {
2777        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2778        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2779    }
2780
2781    public boolean onArrowUpCtrlPressed() {
2782        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2783        if (lastEditableMessage != null) {
2784            correctMessage(lastEditableMessage);
2785            return true;
2786        } else {
2787            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2788            return false;
2789        }
2790    }
2791
2792    @Override
2793    public void onTypingStarted() {
2794        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2795        if (service == null) {
2796            return;
2797        }
2798        final Account.State status = conversation.getAccount().getStatus();
2799        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2800            service.sendChatState(conversation);
2801        }
2802        runOnUiThread(this::updateSendButton);
2803    }
2804
2805    @Override
2806    public void onTypingStopped() {
2807        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2808        if (service == null) {
2809            return;
2810        }
2811        final Account.State status = conversation.getAccount().getStatus();
2812        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2813            service.sendChatState(conversation);
2814        }
2815    }
2816
2817    @Override
2818    public void onTextDeleted() {
2819        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2820        if (service == null) {
2821            return;
2822        }
2823        final Account.State status = conversation.getAccount().getStatus();
2824        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2825            service.sendChatState(conversation);
2826        }
2827        if (storeNextMessage()) {
2828            runOnUiThread(() -> {
2829                if (activity == null) {
2830                    return;
2831                }
2832                activity.onConversationsListItemUpdated();
2833            });
2834        }
2835        runOnUiThread(this::updateSendButton);
2836    }
2837
2838    @Override
2839    public void onTextChanged() {
2840        if (conversation != null && conversation.getCorrectingMessage() != null) {
2841            runOnUiThread(this::updateSendButton);
2842        }
2843    }
2844
2845    @Override
2846    public boolean onTabPressed(boolean repeated) {
2847        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2848            return false;
2849        }
2850        if (repeated) {
2851            completionIndex++;
2852        } else {
2853            lastCompletionLength = 0;
2854            completionIndex = 0;
2855            final String content = this.binding.textinput.getText().toString();
2856            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2857            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2858            firstWord = start == 0;
2859            incomplete = content.substring(start, lastCompletionCursor);
2860        }
2861        List<String> completions = new ArrayList<>();
2862        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2863            String name = user.getName();
2864            if (name != null && name.startsWith(incomplete)) {
2865                completions.add(name + (firstWord ? ": " : " "));
2866            }
2867        }
2868        Collections.sort(completions);
2869        if (completions.size() > completionIndex) {
2870            String completion = completions.get(completionIndex).substring(incomplete.length());
2871            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2872            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2873            lastCompletionLength = completion.length();
2874        } else {
2875            completionIndex = -1;
2876            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2877            lastCompletionLength = 0;
2878        }
2879        return true;
2880    }
2881
2882    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2883        try {
2884            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2885        } catch (final SendIntentException ignored) {
2886        }
2887    }
2888
2889    @Override
2890    public void onBackendConnected() {
2891        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2892        String uuid = pendingConversationsUuid.pop();
2893        if (uuid != null) {
2894            if (!findAndReInitByUuidOrArchive(uuid)) {
2895                return;
2896            }
2897        } else {
2898            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2899                clearPending();
2900                activity.onConversationArchived(conversation);
2901                return;
2902            }
2903        }
2904        ActivityResult activityResult = postponedActivityResult.pop();
2905        if (activityResult != null) {
2906            handleActivityResult(activityResult);
2907        }
2908        clearPending();
2909    }
2910
2911    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2912        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2913        if (conversation == null) {
2914            clearPending();
2915            activity.onConversationArchived(null);
2916            return false;
2917        }
2918        reInit(conversation);
2919        ScrollState scrollState = pendingScrollState.pop();
2920        String lastMessageUuid = pendingLastMessageUuid.pop();
2921        List<Attachment> attachments = pendingMediaPreviews.pop();
2922        if (scrollState != null) {
2923            setScrollPosition(scrollState, lastMessageUuid);
2924        }
2925        if (attachments != null && attachments.size() > 0) {
2926            Log.d(Config.LOGTAG, "had attachments on restore");
2927            mediaPreviewAdapter.addMediaPreviews(attachments);
2928            toggleInputMethod();
2929        }
2930        return true;
2931    }
2932
2933    private void clearPending() {
2934        if (postponedActivityResult.clear()) {
2935            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2936            if (pendingTakePhotoUri.clear()) {
2937                Log.e(Config.LOGTAG, "cleared pending photo uri");
2938            }
2939        }
2940        if (pendingScrollState.clear()) {
2941            Log.e(Config.LOGTAG, "cleared scroll state");
2942        }
2943        if (pendingConversationsUuid.clear()) {
2944            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2945        }
2946        if (pendingMediaPreviews.clear()) {
2947            Log.e(Config.LOGTAG, "cleared pending media previews");
2948        }
2949    }
2950
2951    public Conversation getConversation() {
2952        return conversation;
2953    }
2954
2955    @Override
2956    public void onContactPictureLongClicked(View v, final Message message) {
2957        final String fingerprint;
2958        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2959            fingerprint = "pgp";
2960        } else {
2961            fingerprint = message.getFingerprint();
2962        }
2963        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2964        final Contact contact = message.getContact();
2965        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2966            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2967                final Jid cp = message.getCounterpart();
2968                if (cp == null || cp.isBareJid()) {
2969                    return;
2970                }
2971                final Jid tcp = message.getTrueCounterpart();
2972                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2973                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2974                popupMenu.inflate(R.menu.muc_details_context);
2975                final Menu menu = popupMenu.getMenu();
2976                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2977                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2978            } else {
2979                popupMenu.inflate(R.menu.one_on_one_context);
2980                popupMenu.setOnMenuItemClickListener(item -> {
2981                    switch (item.getItemId()) {
2982                        case R.id.action_contact_details:
2983                            activity.switchToContactDetails(message.getContact(), fingerprint);
2984                            break;
2985                        case R.id.action_show_qr_code:
2986                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2987                            break;
2988                    }
2989                    return true;
2990                });
2991            }
2992        } else {
2993            popupMenu.inflate(R.menu.account_context);
2994            final Menu menu = popupMenu.getMenu();
2995            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2996            popupMenu.setOnMenuItemClickListener(item -> {
2997                switch (item.getItemId()) {
2998                    case R.id.action_show_qr_code:
2999                        activity.showQrCode(conversation.getAccount().getShareableUri());
3000                        break;
3001                    case R.id.action_account_details:
3002                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3003                        break;
3004                    case R.id.action_manage_accounts:
3005                        AccountUtils.launchManageAccounts(activity);
3006                        break;
3007                }
3008                return true;
3009            });
3010        }
3011        popupMenu.show();
3012    }
3013
3014    @Override
3015    public void onContactPictureClicked(Message message) {
3016        String fingerprint;
3017        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3018            fingerprint = "pgp";
3019        } else {
3020            fingerprint = message.getFingerprint();
3021        }
3022        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3023        if (received) {
3024            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3025                Jid tcp = message.getTrueCounterpart();
3026                Jid user = message.getCounterpart();
3027                if (user != null && !user.isBareJid()) {
3028                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3029                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3030                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3031                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3032                        }
3033                        highlightInConference(user.getResource());
3034                    } else {
3035                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3036                    }
3037                }
3038                return;
3039            } else {
3040                if (!message.getContact().isSelf()) {
3041                    activity.switchToContactDetails(message.getContact(), fingerprint);
3042                    return;
3043                }
3044            }
3045        }
3046        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3047    }
3048}