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 (trustKeysIfNeeded(conversation, 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    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 761        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(requestCode);
 762    }
 763
 764    protected boolean trustKeysIfNeeded(int requestCode) {
 765        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 766        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 767        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 768        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 769        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 770        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 771        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 772        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 773        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 774            axolotlService.createSessionsIfNeeded(conversation);
 775            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 776            String[] contacts = new String[targets.size()];
 777            for (int i = 0; i < contacts.length; ++i) {
 778                contacts[i] = targets.get(i).toString();
 779            }
 780            intent.putExtra("contacts", contacts);
 781            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toEscapedString());
 782            intent.putExtra("conversation", conversation.getUuid());
 783            startActivityForResult(intent, requestCode);
 784            return true;
 785        } else {
 786            return false;
 787        }
 788    }
 789
 790    public void updateChatMsgHint() {
 791        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 792        if (conversation.getCorrectingMessage() != null) {
 793            this.binding.textInputHint.setVisibility(View.GONE);
 794            this.binding.textinput.setHint(R.string.send_corrected_message);
 795        } else if (multi && conversation.getNextCounterpart() != null) {
 796            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 797            this.binding.textInputHint.setVisibility(View.VISIBLE);
 798            this.binding.textInputHint.setText(getString(
 799                    R.string.send_private_message_to,
 800                    conversation.getNextCounterpart().getResource()));
 801        } else if (multi && !conversation.getMucOptions().participating()) {
 802            this.binding.textInputHint.setVisibility(View.GONE);
 803            this.binding.textinput.setHint(R.string.you_are_not_participating);
 804        } else {
 805            this.binding.textInputHint.setVisibility(View.GONE);
 806            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 807            getActivity().invalidateOptionsMenu();
 808        }
 809    }
 810
 811    public void setupIme() {
 812        this.binding.textinput.refreshIme();
 813    }
 814
 815    private void handleActivityResult(ActivityResult activityResult) {
 816        if (activityResult.resultCode == Activity.RESULT_OK) {
 817            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 818        } else {
 819            handleNegativeActivityResult(activityResult.requestCode);
 820        }
 821    }
 822
 823    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 824        switch (requestCode) {
 825            case REQUEST_TRUST_KEYS_TEXT:
 826                sendMessage();
 827                break;
 828            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 829                commitAttachments();
 830                break;
 831            case REQUEST_START_AUDIO_CALL:
 832                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 833                break;
 834            case REQUEST_START_VIDEO_CALL:
 835                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 836                break;
 837            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 838                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 839                mediaPreviewAdapter.addMediaPreviews(imageUris);
 840                toggleInputMethod();
 841                break;
 842            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 843                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 844                if (takePhotoUri != null) {
 845                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 846                    toggleInputMethod();
 847                } else {
 848                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 849                }
 850                break;
 851            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 852            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 853            case ATTACHMENT_CHOICE_RECORD_VOICE:
 854                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 855                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 856                mediaPreviewAdapter.addMediaPreviews(fileUris);
 857                toggleInputMethod();
 858                break;
 859            case ATTACHMENT_CHOICE_LOCATION:
 860                double latitude = data.getDoubleExtra("latitude", 0);
 861                double longitude = data.getDoubleExtra("longitude", 0);
 862                Uri geo = Uri.parse("geo:" + latitude + "," + longitude);
 863                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 864                toggleInputMethod();
 865                break;
 866            case REQUEST_INVITE_TO_CONVERSATION:
 867                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 868                if (invite != null) {
 869                    if (invite.execute(activity)) {
 870                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 871                        activity.mToast.show();
 872                    }
 873                }
 874                break;
 875        }
 876    }
 877
 878    private void commitAttachments() {
 879        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 880        if (anyNeedsExternalStoragePermission(attachments) && !hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 881            return;
 882        }
 883        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 884            return;
 885        }
 886        final PresenceSelector.OnPresenceSelected callback = () -> {
 887            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 888                final Attachment attachment = i.next();
 889                if (attachment.getType() == Attachment.Type.LOCATION) {
 890                    attachLocationToConversation(conversation, attachment.getUri());
 891                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 892                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 893                    attachImageToConversation(conversation, attachment.getUri());
 894                } else {
 895                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 896                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 897                }
 898            }
 899            mediaPreviewAdapter.notifyDataSetChanged();
 900            toggleInputMethod();
 901        };
 902        if (conversation == null
 903                || conversation.getMode() == Conversation.MODE_MULTI
 904                || Attachment.canBeSendInband(attachments)
 905                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 906            callback.onPresenceSelected();
 907        } else {
 908            activity.selectPresence(conversation, callback);
 909        }
 910    }
 911
 912
 913    private static boolean anyNeedsExternalStoragePermission(final Collection<Attachment> attachments) {
 914        for (final Attachment attachment : attachments) {
 915            if (attachment.getType() != Attachment.Type.LOCATION) {
 916                return true;
 917            }
 918        }
 919        return false;
 920    }
 921
 922    public void toggleInputMethod() {
 923        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 924        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 925        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 926        updateSendButton();
 927    }
 928
 929    private void handleNegativeActivityResult(int requestCode) {
 930        switch (requestCode) {
 931            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 932                if (pendingTakePhotoUri.clear()) {
 933                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 934                }
 935                break;
 936        }
 937    }
 938
 939    @Override
 940    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 941        super.onActivityResult(requestCode, resultCode, data);
 942        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 943        if (activity != null && activity.xmppConnectionService != null) {
 944            handleActivityResult(activityResult);
 945        } else {
 946            this.postponedActivityResult.push(activityResult);
 947        }
 948    }
 949
 950    public void unblockConversation(final Blockable conversation) {
 951        activity.xmppConnectionService.sendUnblockRequest(conversation);
 952    }
 953
 954    @Override
 955    public void onAttach(Activity activity) {
 956        super.onAttach(activity);
 957        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 958        if (activity instanceof ConversationsActivity) {
 959            this.activity = (ConversationsActivity) activity;
 960        } else {
 961            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 962        }
 963    }
 964
 965    @Override
 966    public void onDetach() {
 967        super.onDetach();
 968        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 969    }
 970
 971    @Override
 972    public void onCreate(Bundle savedInstanceState) {
 973        super.onCreate(savedInstanceState);
 974        setHasOptionsMenu(true);
 975    }
 976
 977    @Override
 978    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 979        menuInflater.inflate(R.menu.fragment_conversation, menu);
 980        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 981        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 982        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 983        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 984        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 985        final MenuItem menuCall = menu.findItem(R.id.action_call);
 986        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
 987        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 988        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
 989
 990
 991        if (conversation != null) {
 992            if (conversation.getMode() == Conversation.MODE_MULTI) {
 993                menuContactDetails.setVisible(false);
 994                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 995                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 996                menuCall.setVisible(false);
 997                menuOngoingCall.setVisible(false);
 998            } else {
 999                final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
1000                final Optional<OngoingRtpSession> ongoingRtpSession = service == null ? Optional.absent() : service.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1001                if (ongoingRtpSession.isPresent()) {
1002                    menuOngoingCall.setVisible(true);
1003                    menuCall.setVisible(false);
1004                } else {
1005                    menuOngoingCall.setVisible(false);
1006                    final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
1007                    final boolean cameraAvailable = activity != null && activity.isCameraFeatureAvailable();
1008                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1009                    menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1010                }
1011                menuContactDetails.setVisible(!this.conversation.withSelf());
1012                menuMucDetails.setVisible(false);
1013                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
1014            }
1015            if (conversation.isMuted()) {
1016                menuMute.setVisible(false);
1017            } else {
1018                menuUnmute.setVisible(false);
1019            }
1020            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1021            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1022            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1023                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1024            } else {
1025                menuTogglePinned.setTitle(R.string.add_to_favorites);
1026            }
1027        }
1028        super.onCreateOptionsMenu(menu, menuInflater);
1029    }
1030
1031    @Override
1032    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1033        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1034        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
1035
1036        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
1037
1038        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1039        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1040
1041        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1042
1043        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1044        binding.messagesView.setOnScrollListener(mOnScrollListener);
1045        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1046        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1047        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1048        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1049        messageListAdapter.setOnContactPictureClicked(this);
1050        messageListAdapter.setOnContactPictureLongClicked(this);
1051        binding.messagesView.setAdapter(messageListAdapter);
1052
1053        registerForContextMenu(binding.messagesView);
1054
1055        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1056            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1057        }
1058
1059        return binding.getRoot();
1060    }
1061
1062    @Override
1063    public void onDestroyView() {
1064        super.onDestroyView();
1065        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1066        messageListAdapter.setOnContactPictureClicked(null);
1067        messageListAdapter.setOnContactPictureLongClicked(null);
1068    }
1069
1070    private void quoteText(String text) {
1071        if (binding.textinput.isEnabled()) {
1072            binding.textinput.insertAsQuote(text);
1073            binding.textinput.requestFocus();
1074            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1075            if (inputMethodManager != null) {
1076                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1077            }
1078        }
1079    }
1080
1081    private void quoteMessage(Message message) {
1082        quoteText(MessageUtils.prepareQuote(message));
1083    }
1084
1085    @Override
1086    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1087        //This should cancel any remaining click events that would otherwise trigger links
1088        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1089        synchronized (this.messageList) {
1090            super.onCreateContextMenu(menu, v, menuInfo);
1091            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1092            this.selectedMessage = this.messageList.get(acmi.position);
1093            populateContextMenu(menu);
1094        }
1095    }
1096
1097    private void populateContextMenu(ContextMenu menu) {
1098        final Message m = this.selectedMessage;
1099        final Transferable t = m.getTransferable();
1100        Message relevantForCorrection = m;
1101        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1102            relevantForCorrection = relevantForCorrection.next();
1103        }
1104        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1105
1106            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1107                return;
1108            }
1109
1110            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1111                return;
1112            }
1113
1114            final boolean deleted = m.isDeleted();
1115            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1116                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1117            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1118            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1119            menu.setHeaderTitle(R.string.message_options);
1120            MenuItem openWith = menu.findItem(R.id.open_with);
1121            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1122            MenuItem copyLink = menu.findItem(R.id.copy_link);
1123            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1124            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1125            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1126            MenuItem shareWith = menu.findItem(R.id.share_with);
1127            MenuItem sendAgain = menu.findItem(R.id.send_again);
1128            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1129            MenuItem downloadFile = menu.findItem(R.id.download_file);
1130            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1131            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1132            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1133            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1134            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1135            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable() && !unInitiatedButKnownSize && t == null) {
1136                copyMessage.setVisible(true);
1137                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1138                String body = m.getMergedBody().toString();
1139                if (ShareUtil.containsXmppUri(body)) {
1140                    copyLink.setTitle(R.string.copy_jabber_id);
1141                    copyLink.setVisible(true);
1142                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1143                    copyLink.setVisible(true);
1144                }
1145            }
1146            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1147                retryDecryption.setVisible(true);
1148            }
1149            if (!showError
1150                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1151                    && !m.isGeoUri()
1152                    && relevantForCorrection.isLastCorrectableMessage()
1153                    && m.getConversation() instanceof Conversation) {
1154                correctMessage.setVisible(true);
1155            }
1156            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable()) && !unInitiatedButKnownSize && t == null) {
1157                shareWith.setVisible(true);
1158            }
1159            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1160                sendAgain.setVisible(true);
1161            }
1162            if (m.hasFileOnRemoteHost()
1163                    || m.isGeoUri()
1164                    || m.treatAsDownloadable()
1165                    || unInitiatedButKnownSize
1166                    || t instanceof HttpDownloadConnection) {
1167                copyUrl.setVisible(true);
1168            }
1169            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1170                downloadFile.setVisible(true);
1171                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1172            }
1173            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1174                    || m.getStatus() == Message.STATUS_UNSEND
1175                    || m.getStatus() == Message.STATUS_OFFERED;
1176            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1177            if (cancelable) {
1178                cancelTransmission.setVisible(true);
1179            }
1180            if (m.isFileOrImage() && !deleted && !cancelable) {
1181                String path = m.getRelativeFilePath();
1182                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1183                    deleteFile.setVisible(true);
1184                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1185                }
1186            }
1187            if (showError) {
1188                showErrorMessage.setVisible(true);
1189            }
1190            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1191            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1192                openWith.setVisible(true);
1193            }
1194        }
1195    }
1196
1197    @Override
1198    public boolean onContextItemSelected(MenuItem item) {
1199        switch (item.getItemId()) {
1200            case R.id.share_with:
1201                ShareUtil.share(activity, selectedMessage);
1202                return true;
1203            case R.id.correct_message:
1204                correctMessage(selectedMessage);
1205                return true;
1206            case R.id.copy_message:
1207                ShareUtil.copyToClipboard(activity, selectedMessage);
1208                return true;
1209            case R.id.copy_link:
1210                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1211                return true;
1212            case R.id.quote_message:
1213                quoteMessage(selectedMessage);
1214                return true;
1215            case R.id.send_again:
1216                resendMessage(selectedMessage);
1217                return true;
1218            case R.id.copy_url:
1219                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1220                return true;
1221            case R.id.download_file:
1222                startDownloadable(selectedMessage);
1223                return true;
1224            case R.id.cancel_transmission:
1225                cancelTransmission(selectedMessage);
1226                return true;
1227            case R.id.retry_decryption:
1228                retryDecryption(selectedMessage);
1229                return true;
1230            case R.id.delete_file:
1231                deleteFile(selectedMessage);
1232                return true;
1233            case R.id.show_error_message:
1234                showErrorMessage(selectedMessage);
1235                return true;
1236            case R.id.open_with:
1237                openWith(selectedMessage);
1238                return true;
1239            default:
1240                return super.onContextItemSelected(item);
1241        }
1242    }
1243
1244    @Override
1245    public boolean onOptionsItemSelected(final MenuItem item) {
1246        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1247            return false;
1248        } else if (conversation == null) {
1249            return super.onOptionsItemSelected(item);
1250        }
1251        switch (item.getItemId()) {
1252            case R.id.encryption_choice_axolotl:
1253            case R.id.encryption_choice_pgp:
1254            case R.id.encryption_choice_none:
1255                handleEncryptionSelection(item);
1256                break;
1257            case R.id.attach_choose_picture:
1258            case R.id.attach_take_picture:
1259            case R.id.attach_record_video:
1260            case R.id.attach_choose_file:
1261            case R.id.attach_record_voice:
1262            case R.id.attach_location:
1263                handleAttachmentSelection(item);
1264                break;
1265            case R.id.action_search:
1266                startSearch();
1267                break;
1268            case R.id.action_archive:
1269                activity.xmppConnectionService.archiveConversation(conversation);
1270                break;
1271            case R.id.action_contact_details:
1272                activity.switchToContactDetails(conversation.getContact());
1273                break;
1274            case R.id.action_muc_details:
1275                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1276                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1277                intent.putExtra("uuid", conversation.getUuid());
1278                startActivity(intent);
1279                break;
1280            case R.id.action_invite:
1281                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1282                break;
1283            case R.id.action_clear_history:
1284                clearHistoryDialog(conversation);
1285                break;
1286            case R.id.action_mute:
1287                muteConversationDialog(conversation);
1288                break;
1289            case R.id.action_unmute:
1290                unmuteConversation(conversation);
1291                break;
1292            case R.id.action_block:
1293            case R.id.action_unblock:
1294                final Activity activity = getActivity();
1295                if (activity instanceof XmppActivity) {
1296                    BlockContactDialog.show((XmppActivity) activity, conversation);
1297                }
1298                break;
1299            case R.id.action_audio_call:
1300                checkPermissionAndTriggerAudioCall();
1301                break;
1302            case R.id.action_video_call:
1303                checkPermissionAndTriggerVideoCall();
1304                break;
1305            case R.id.action_ongoing_call:
1306                returnToOngoingCall();
1307                break;
1308            case R.id.action_toggle_pinned:
1309                togglePinned();
1310                break;
1311            default:
1312                break;
1313        }
1314        return super.onOptionsItemSelected(item);
1315    }
1316
1317    private void startSearch() {
1318        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1319        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1320        startActivity(intent);
1321    }
1322
1323    private void returnToOngoingCall() {
1324        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1325        if (ongoingRtpSession.isPresent()) {
1326            final OngoingRtpSession id = ongoingRtpSession.get();
1327            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1328            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1329            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1330            if (id instanceof AbstractJingleConnection.Id) {
1331                intent.setAction(Intent.ACTION_VIEW);
1332                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1333            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1334                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1335                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1336                } else {
1337                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1338                }
1339            }
1340            startActivity(intent);
1341        }
1342
1343    }
1344
1345    private void togglePinned() {
1346        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1347        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1348        activity.xmppConnectionService.updateConversation(conversation);
1349        activity.invalidateOptionsMenu();
1350    }
1351
1352    private void checkPermissionAndTriggerAudioCall() {
1353        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1354            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1355            return;
1356        }
1357        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1358            if (Config.REQUIRE_RTP_VERIFICATION && trustKeysIfNeeded(conversation, REQUEST_START_AUDIO_CALL)) {
1359                return;
1360            }
1361            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1362        }
1363    }
1364
1365    private void checkPermissionAndTriggerVideoCall() {
1366        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1367            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1368            return;
1369        }
1370        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1371            if (Config.REQUIRE_RTP_VERIFICATION && trustKeysIfNeeded(conversation, REQUEST_START_VIDEO_CALL)) {
1372                return;
1373            }
1374            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1375        }
1376    }
1377
1378
1379    private void triggerRtpSession(final String action) {
1380        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1381            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1382            return;
1383        }
1384        final Contact contact = conversation.getContact();
1385        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1386            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1387        } else {
1388            final RtpCapability.Capability capability;
1389            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1390                capability = RtpCapability.Capability.VIDEO;
1391            } else {
1392                capability = RtpCapability.Capability.AUDIO;
1393            }
1394            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1395                triggerRtpSession(contact.getAccount(), fullJid, action);
1396            });
1397        }
1398    }
1399
1400    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1401        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1402        intent.setAction(action);
1403        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1404        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1405        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1406        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1407        startActivity(intent);
1408    }
1409
1410    private void handleAttachmentSelection(MenuItem item) {
1411        switch (item.getItemId()) {
1412            case R.id.attach_choose_picture:
1413                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1414                break;
1415            case R.id.attach_take_picture:
1416                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1417                break;
1418            case R.id.attach_record_video:
1419                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1420                break;
1421            case R.id.attach_choose_file:
1422                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1423                break;
1424            case R.id.attach_record_voice:
1425                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1426                break;
1427            case R.id.attach_location:
1428                attachFile(ATTACHMENT_CHOICE_LOCATION);
1429                break;
1430        }
1431    }
1432
1433    private void handleEncryptionSelection(MenuItem item) {
1434        if (conversation == null) {
1435            return;
1436        }
1437        final boolean updated;
1438        switch (item.getItemId()) {
1439            case R.id.encryption_choice_none:
1440                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1441                item.setChecked(true);
1442                break;
1443            case R.id.encryption_choice_pgp:
1444                if (activity.hasPgp()) {
1445                    if (conversation.getAccount().getPgpSignature() != null) {
1446                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1447                        item.setChecked(true);
1448                    } else {
1449                        updated = false;
1450                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1451                    }
1452                } else {
1453                    activity.showInstallPgpDialog();
1454                    updated = false;
1455                }
1456                break;
1457            case R.id.encryption_choice_axolotl:
1458                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1459                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1460                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1461                item.setChecked(true);
1462                break;
1463            default:
1464                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1465                break;
1466        }
1467        if (updated) {
1468            activity.xmppConnectionService.updateConversation(conversation);
1469        }
1470        updateChatMsgHint();
1471        getActivity().invalidateOptionsMenu();
1472        activity.refreshUi();
1473    }
1474
1475    public void attachFile(final int attachmentChoice) {
1476        attachFile(attachmentChoice, true);
1477    }
1478
1479    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1480        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1481            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1482                return;
1483            }
1484        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1485            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1486                return;
1487            }
1488        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1489            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1490                return;
1491            }
1492        }
1493        if (updateRecentlyUsed) {
1494            storeRecentlyUsedQuickAction(attachmentChoice);
1495        }
1496        final int encryption = conversation.getNextEncryption();
1497        final int mode = conversation.getMode();
1498        if (encryption == Message.ENCRYPTION_PGP) {
1499            if (activity.hasPgp()) {
1500                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1501                    activity.xmppConnectionService.getPgpEngine().hasKey(
1502                            conversation.getContact(),
1503                            new UiCallback<Contact>() {
1504
1505                                @Override
1506                                public void userInputRequired(PendingIntent pi, Contact contact) {
1507                                    startPendingIntent(pi, attachmentChoice);
1508                                }
1509
1510                                @Override
1511                                public void success(Contact contact) {
1512                                    invokeAttachFileIntent(attachmentChoice);
1513                                }
1514
1515                                @Override
1516                                public void error(int error, Contact contact) {
1517                                    activity.replaceToast(getString(error));
1518                                }
1519                            });
1520                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1521                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1522                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1523                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1524                        warning.show();
1525                    }
1526                    invokeAttachFileIntent(attachmentChoice);
1527                } else {
1528                    showNoPGPKeyDialog(false, (dialog, which) -> {
1529                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1530                        activity.xmppConnectionService.updateConversation(conversation);
1531                        invokeAttachFileIntent(attachmentChoice);
1532                    });
1533                }
1534            } else {
1535                activity.showInstallPgpDialog();
1536            }
1537        } else {
1538            invokeAttachFileIntent(attachmentChoice);
1539        }
1540    }
1541
1542    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1543        try {
1544            activity.getPreferences().edit()
1545                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1546                    .apply();
1547        } catch (IllegalArgumentException e) {
1548            //just do not save
1549        }
1550    }
1551
1552    @Override
1553    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1554        if (grantResults.length > 0) {
1555            if (allGranted(grantResults)) {
1556                switch (requestCode) {
1557                    case REQUEST_START_DOWNLOAD:
1558                        if (this.mPendingDownloadableMessage != null) {
1559                            startDownloadable(this.mPendingDownloadableMessage);
1560                        }
1561                        break;
1562                    case REQUEST_ADD_EDITOR_CONTENT:
1563                        if (this.mPendingEditorContent != null) {
1564                            attachEditorContentToConversation(this.mPendingEditorContent);
1565                        }
1566                        break;
1567                    case REQUEST_COMMIT_ATTACHMENTS:
1568                        commitAttachments();
1569                        break;
1570                    case REQUEST_START_AUDIO_CALL:
1571                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1572                        break;
1573                    case REQUEST_START_VIDEO_CALL:
1574                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1575                        break;
1576                    default:
1577                        attachFile(requestCode);
1578                        break;
1579                }
1580            } else {
1581                @StringRes int res;
1582                String firstDenied = getFirstDenied(grantResults, permissions);
1583                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1584                    res = R.string.no_microphone_permission;
1585                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1586                    res = R.string.no_camera_permission;
1587                } else {
1588                    res = R.string.no_storage_permission;
1589                }
1590                Toast.makeText(getActivity(), getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT).show();
1591            }
1592        }
1593        if (writeGranted(grantResults, permissions)) {
1594            if (activity != null && activity.xmppConnectionService != null) {
1595                activity.xmppConnectionService.restartFileObserver();
1596            }
1597            refresh();
1598        }
1599    }
1600
1601    public void startDownloadable(Message message) {
1602        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1603            this.mPendingDownloadableMessage = message;
1604            return;
1605        }
1606        Transferable transferable = message.getTransferable();
1607        if (transferable != null) {
1608            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1609                createNewConnection(message);
1610                return;
1611            }
1612            if (!transferable.start()) {
1613                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1614                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1615            }
1616        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1617            createNewConnection(message);
1618        } else {
1619            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1620        }
1621    }
1622
1623    private void createNewConnection(final Message message) {
1624        if (!activity.xmppConnectionService.hasInternetConnection()) {
1625            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1626            return;
1627        }
1628        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1629    }
1630
1631    @SuppressLint("InflateParams")
1632    protected void clearHistoryDialog(final Conversation conversation) {
1633        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1634        builder.setTitle(getString(R.string.clear_conversation_history));
1635        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1636        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1637        builder.setView(dialogView);
1638        builder.setNegativeButton(getString(R.string.cancel), null);
1639        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1640            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1641            if (endConversationCheckBox.isChecked()) {
1642                this.activity.xmppConnectionService.archiveConversation(conversation);
1643                this.activity.onConversationArchived(conversation);
1644            } else {
1645                activity.onConversationsListItemUpdated();
1646                refresh();
1647            }
1648        });
1649        builder.create().show();
1650    }
1651
1652    protected void muteConversationDialog(final Conversation conversation) {
1653        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1654        builder.setTitle(R.string.disable_notifications);
1655        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1656        final CharSequence[] labels = new CharSequence[durations.length];
1657        for (int i = 0; i < durations.length; ++i) {
1658            if (durations[i] == -1) {
1659                labels[i] = getString(R.string.until_further_notice);
1660            } else {
1661                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1662            }
1663        }
1664        builder.setItems(labels, (dialog, which) -> {
1665            final long till;
1666            if (durations[which] == -1) {
1667                till = Long.MAX_VALUE;
1668            } else {
1669                till = System.currentTimeMillis() + (durations[which] * 1000);
1670            }
1671            conversation.setMutedTill(till);
1672            activity.xmppConnectionService.updateConversation(conversation);
1673            activity.onConversationsListItemUpdated();
1674            refresh();
1675            getActivity().invalidateOptionsMenu();
1676        });
1677        builder.create().show();
1678    }
1679
1680    private boolean hasPermissions(int requestCode, String... permissions) {
1681        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1682            final List<String> missingPermissions = new ArrayList<>();
1683            for (String permission : permissions) {
1684                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1685                    continue;
1686                }
1687                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1688                    missingPermissions.add(permission);
1689                }
1690            }
1691            if (missingPermissions.size() == 0) {
1692                return true;
1693            } else {
1694                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1695                return false;
1696            }
1697        } else {
1698            return true;
1699        }
1700    }
1701
1702    public void unmuteConversation(final Conversation conversation) {
1703        conversation.setMutedTill(0);
1704        this.activity.xmppConnectionService.updateConversation(conversation);
1705        this.activity.onConversationsListItemUpdated();
1706        refresh();
1707        getActivity().invalidateOptionsMenu();
1708    }
1709
1710
1711    protected void invokeAttachFileIntent(final int attachmentChoice) {
1712        Intent intent = new Intent();
1713        boolean chooser = false;
1714        switch (attachmentChoice) {
1715            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1716                intent.setAction(Intent.ACTION_GET_CONTENT);
1717                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1718                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1719                }
1720                intent.setType("image/*");
1721                chooser = true;
1722                break;
1723            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1724                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1725                break;
1726            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1727                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1728                pendingTakePhotoUri.push(uri);
1729                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1730                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1731                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1732                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1733                break;
1734            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1735                chooser = true;
1736                intent.setType("*/*");
1737                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1738                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1739                }
1740                intent.addCategory(Intent.CATEGORY_OPENABLE);
1741                intent.setAction(Intent.ACTION_GET_CONTENT);
1742                break;
1743            case ATTACHMENT_CHOICE_RECORD_VOICE:
1744                intent = new Intent(getActivity(), RecordingActivity.class);
1745                break;
1746            case ATTACHMENT_CHOICE_LOCATION:
1747                intent = GeoHelper.getFetchIntent(activity);
1748                break;
1749        }
1750        final Context context = getActivity();
1751        if (context == null) {
1752            return;
1753        }
1754        if (intent.resolveActivity(context.getPackageManager()) != null) {
1755            if (chooser) {
1756                startActivityForResult(
1757                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1758                        attachmentChoice);
1759            } else {
1760                startActivityForResult(intent, attachmentChoice);
1761            }
1762        } else {
1763            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
1764        }
1765    }
1766
1767    @Override
1768    public void onResume() {
1769        super.onResume();
1770        binding.messagesView.post(this::fireReadEvent);
1771    }
1772
1773    private void fireReadEvent() {
1774        if (activity != null && this.conversation != null) {
1775            String uuid = getLastVisibleMessageUuid();
1776            if (uuid != null) {
1777                activity.onConversationRead(this.conversation, uuid);
1778            }
1779        }
1780    }
1781
1782    private String getLastVisibleMessageUuid() {
1783        if (binding == null) {
1784            return null;
1785        }
1786        synchronized (this.messageList) {
1787            int pos = binding.messagesView.getLastVisiblePosition();
1788            if (pos >= 0) {
1789                Message message = null;
1790                for (int i = pos; i >= 0; --i) {
1791                    try {
1792                        message = (Message) binding.messagesView.getItemAtPosition(i);
1793                    } catch (IndexOutOfBoundsException e) {
1794                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1795                        continue;
1796                    }
1797                    if (message.getType() != Message.TYPE_STATUS) {
1798                        break;
1799                    }
1800                }
1801                if (message != null) {
1802                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1803                        message = message.next();
1804                    }
1805                    return message.getUuid();
1806                }
1807            }
1808        }
1809        return null;
1810    }
1811
1812    private void openWith(final Message message) {
1813        if (message.isGeoUri()) {
1814            GeoHelper.view(getActivity(), message);
1815        } else {
1816            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1817            ViewUtil.view(activity, file);
1818        }
1819    }
1820
1821    private void showErrorMessage(final Message message) {
1822        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1823        builder.setTitle(R.string.error_message);
1824        final String errorMessage = message.getErrorMessage();
1825        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1826        final String displayError;
1827        if (errorMessageParts.length == 2) {
1828            displayError = errorMessageParts[1];
1829        } else {
1830            displayError = errorMessage;
1831        }
1832        builder.setMessage(displayError);
1833        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1834            activity.copyTextToClipboard(displayError, R.string.error_message);
1835            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1836        });
1837        builder.setPositiveButton(R.string.confirm, null);
1838        builder.create().show();
1839    }
1840
1841
1842    private void deleteFile(final Message message) {
1843        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1844        builder.setNegativeButton(R.string.cancel, null);
1845        builder.setTitle(R.string.delete_file_dialog);
1846        builder.setMessage(R.string.delete_file_dialog_msg);
1847        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1848            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1849                message.setDeleted(true);
1850                activity.xmppConnectionService.evictPreview(message.getUuid());
1851                activity.xmppConnectionService.updateMessage(message, false);
1852                activity.onConversationsListItemUpdated();
1853                refresh();
1854            }
1855        });
1856        builder.create().show();
1857
1858    }
1859
1860    private void resendMessage(final Message message) {
1861        if (message.isFileOrImage()) {
1862            if (!(message.getConversation() instanceof Conversation)) {
1863                return;
1864            }
1865            final Conversation conversation = (Conversation) message.getConversation();
1866            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1867            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1868                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1869                if (!message.hasFileOnRemoteHost()
1870                        && xmppConnection != null
1871                        && conversation.getMode() == Conversational.MODE_SINGLE
1872                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1873                    activity.selectPresence(conversation, () -> {
1874                        message.setCounterpart(conversation.getNextCounterpart());
1875                        activity.xmppConnectionService.resendFailedMessages(message);
1876                        new Handler().post(() -> {
1877                            int size = messageList.size();
1878                            this.binding.messagesView.setSelection(size - 1);
1879                        });
1880                    });
1881                    return;
1882                }
1883            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1884                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1885                return;
1886            } else {
1887                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1888                message.setDeleted(true);
1889                activity.xmppConnectionService.updateMessage(message, false);
1890                activity.onConversationsListItemUpdated();
1891                refresh();
1892                return;
1893            }
1894        }
1895        activity.xmppConnectionService.resendFailedMessages(message);
1896        new Handler().post(() -> {
1897            int size = messageList.size();
1898            this.binding.messagesView.setSelection(size - 1);
1899        });
1900    }
1901
1902    private void cancelTransmission(Message message) {
1903        Transferable transferable = message.getTransferable();
1904        if (transferable != null) {
1905            transferable.cancel();
1906        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1907            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1908        }
1909    }
1910
1911    private void retryDecryption(Message message) {
1912        message.setEncryption(Message.ENCRYPTION_PGP);
1913        activity.onConversationsListItemUpdated();
1914        refresh();
1915        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1916    }
1917
1918    public void privateMessageWith(final Jid counterpart) {
1919        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1920            activity.xmppConnectionService.sendChatState(conversation);
1921        }
1922        this.binding.textinput.setText("");
1923        this.conversation.setNextCounterpart(counterpart);
1924        updateChatMsgHint();
1925        updateSendButton();
1926        updateEditablity();
1927    }
1928
1929    private void correctMessage(Message message) {
1930        while (message.mergeable(message.next())) {
1931            message = message.next();
1932        }
1933        this.conversation.setCorrectingMessage(message);
1934        final Editable editable = binding.textinput.getText();
1935        this.conversation.setDraftMessage(editable.toString());
1936        this.binding.textinput.setText("");
1937        this.binding.textinput.append(message.getBody());
1938
1939    }
1940
1941    private void highlightInConference(String nick) {
1942        final Editable editable = this.binding.textinput.getText();
1943        String oldString = editable.toString().trim();
1944        final int pos = this.binding.textinput.getSelectionStart();
1945        if (oldString.isEmpty() || pos == 0) {
1946            editable.insert(0, nick + ": ");
1947        } else {
1948            final char before = editable.charAt(pos - 1);
1949            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1950            if (before == '\n') {
1951                editable.insert(pos, nick + ": ");
1952            } else {
1953                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1954                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1955                        editable.insert(pos - 2, ", " + nick);
1956                        return;
1957                    }
1958                }
1959                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1960                if (Character.isWhitespace(after)) {
1961                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1962                }
1963            }
1964        }
1965    }
1966
1967    @Override
1968    public void startActivityForResult(Intent intent, int requestCode) {
1969        final Activity activity = getActivity();
1970        if (activity instanceof ConversationsActivity) {
1971            ((ConversationsActivity) activity).clearPendingViewIntent();
1972        }
1973        super.startActivityForResult(intent, requestCode);
1974    }
1975
1976    @Override
1977    public void onSaveInstanceState(Bundle outState) {
1978        super.onSaveInstanceState(outState);
1979        if (conversation != null) {
1980            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1981            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1982            final Uri uri = pendingTakePhotoUri.peek();
1983            if (uri != null) {
1984                outState.putString(STATE_PHOTO_URI, uri.toString());
1985            }
1986            final ScrollState scrollState = getScrollPosition();
1987            if (scrollState != null) {
1988                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1989            }
1990            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1991            if (attachments.size() > 0) {
1992                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1993            }
1994        }
1995    }
1996
1997    @Override
1998    public void onActivityCreated(Bundle savedInstanceState) {
1999        super.onActivityCreated(savedInstanceState);
2000        if (savedInstanceState == null) {
2001            return;
2002        }
2003        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2004        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2005        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2006        if (uuid != null) {
2007            QuickLoader.set(uuid);
2008            this.pendingConversationsUuid.push(uuid);
2009            if (attachments != null && attachments.size() > 0) {
2010                this.pendingMediaPreviews.push(attachments);
2011            }
2012            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2013            if (takePhotoUri != null) {
2014                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2015            }
2016            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2017        }
2018    }
2019
2020    @Override
2021    public void onStart() {
2022        super.onStart();
2023        if (this.reInitRequiredOnStart && this.conversation != null) {
2024            final Bundle extras = pendingExtras.pop();
2025            reInit(this.conversation, extras != null);
2026            if (extras != null) {
2027                processExtras(extras);
2028            }
2029        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2030            final String uuid = pendingConversationsUuid.pop();
2031            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2032            if (uuid != null) {
2033                findAndReInitByUuidOrArchive(uuid);
2034            }
2035        }
2036    }
2037
2038    @Override
2039    public void onStop() {
2040        super.onStop();
2041        final Activity activity = getActivity();
2042        messageListAdapter.unregisterListenerInAudioPlayer();
2043        if (activity == null || !activity.isChangingConfigurations()) {
2044            hideSoftKeyboard(activity);
2045            messageListAdapter.stopAudioPlayer();
2046        }
2047        if (this.conversation != null) {
2048            final String msg = this.binding.textinput.getText().toString();
2049            storeNextMessage(msg);
2050            updateChatState(this.conversation, msg);
2051            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2052        }
2053        this.reInitRequiredOnStart = true;
2054    }
2055
2056    private void updateChatState(final Conversation conversation, final String msg) {
2057        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2058        Account.State status = conversation.getAccount().getStatus();
2059        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2060            activity.xmppConnectionService.sendChatState(conversation);
2061        }
2062    }
2063
2064    private void saveMessageDraftStopAudioPlayer() {
2065        final Conversation previousConversation = this.conversation;
2066        if (this.activity == null || this.binding == null || previousConversation == null) {
2067            return;
2068        }
2069        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2070        final String msg = this.binding.textinput.getText().toString();
2071        storeNextMessage(msg);
2072        updateChatState(this.conversation, msg);
2073        messageListAdapter.stopAudioPlayer();
2074        mediaPreviewAdapter.clearPreviews();
2075        toggleInputMethod();
2076    }
2077
2078    public void reInit(final Conversation conversation, final Bundle extras) {
2079        QuickLoader.set(conversation.getUuid());
2080        final boolean changedConversation = this.conversation != conversation;
2081        if (changedConversation) {
2082            this.saveMessageDraftStopAudioPlayer();
2083        }
2084        this.clearPending();
2085        if (this.reInit(conversation, extras != null)) {
2086            if (extras != null) {
2087                processExtras(extras);
2088            }
2089            this.reInitRequiredOnStart = false;
2090        } else {
2091            this.reInitRequiredOnStart = true;
2092            pendingExtras.push(extras);
2093        }
2094        resetUnreadMessagesCount();
2095    }
2096
2097    private void reInit(Conversation conversation) {
2098        reInit(conversation, false);
2099    }
2100
2101    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2102        if (conversation == null) {
2103            return false;
2104        }
2105        this.conversation = conversation;
2106        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2107        if (this.activity == null || this.binding == null) {
2108            return false;
2109        }
2110
2111        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2112            activity.onConversationArchived(this.conversation);
2113            return false;
2114        }
2115
2116        stopScrolling();
2117        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2118
2119        if (this.conversation.isRead() && hasExtras) {
2120            Log.d(Config.LOGTAG, "trimming conversation");
2121            this.conversation.trim();
2122        }
2123
2124        setupIme();
2125
2126        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2127
2128        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2129        this.binding.textinput.setKeyboardListener(null);
2130        this.binding.textinput.setText("");
2131        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2132        if (participating) {
2133            this.binding.textinput.append(this.conversation.getNextMessage());
2134        }
2135        this.binding.textinput.setKeyboardListener(this);
2136        messageListAdapter.updatePreferences();
2137        refresh(false);
2138        activity.invalidateOptionsMenu();
2139        this.conversation.messagesLoaded.set(true);
2140        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2141
2142        if (hasExtras || scrolledToBottomAndNoPending) {
2143            resetUnreadMessagesCount();
2144            synchronized (this.messageList) {
2145                Log.d(Config.LOGTAG, "jump to first unread message");
2146                final Message first = conversation.getFirstUnreadMessage();
2147                final int bottom = Math.max(0, this.messageList.size() - 1);
2148                final int pos;
2149                final boolean jumpToBottom;
2150                if (first == null) {
2151                    pos = bottom;
2152                    jumpToBottom = true;
2153                } else {
2154                    int i = getIndexOf(first.getUuid(), this.messageList);
2155                    pos = i < 0 ? bottom : i;
2156                    jumpToBottom = false;
2157                }
2158                setSelection(pos, jumpToBottom);
2159            }
2160        }
2161
2162
2163        this.binding.messagesView.post(this::fireReadEvent);
2164        //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
2165        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2166        return true;
2167    }
2168
2169    private void resetUnreadMessagesCount() {
2170        lastMessageUuid = null;
2171        hideUnreadMessagesCount();
2172    }
2173
2174    private void hideUnreadMessagesCount() {
2175        if (this.binding == null) {
2176            return;
2177        }
2178        this.binding.scrollToBottomButton.setEnabled(false);
2179        this.binding.scrollToBottomButton.hide();
2180        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2181    }
2182
2183    private void setSelection(int pos, boolean jumpToBottom) {
2184        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2185        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2186        this.binding.messagesView.post(this::fireReadEvent);
2187    }
2188
2189
2190    private boolean scrolledToBottom() {
2191        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2192    }
2193
2194    private void processExtras(final Bundle extras) {
2195        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2196        final String text = extras.getString(Intent.EXTRA_TEXT);
2197        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2198        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2199        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2200        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2201        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2202        final List<Uri> uris = extractUris(extras);
2203        if (uris != null && uris.size() > 0) {
2204            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2205                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2206            } else {
2207                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2208                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2209            }
2210            toggleInputMethod();
2211            return;
2212        }
2213        if (nick != null) {
2214            if (pm) {
2215                Jid jid = conversation.getJid();
2216                try {
2217                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2218                    privateMessageWith(next);
2219                } catch (final IllegalArgumentException ignored) {
2220                    //do nothing
2221                }
2222            } else {
2223                final MucOptions mucOptions = conversation.getMucOptions();
2224                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2225                    highlightInConference(nick);
2226                }
2227            }
2228        } else {
2229            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2230                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2231                toggleInputMethod();
2232                return;
2233            } else if (text != null && asQuote) {
2234                quoteText(text);
2235            } else {
2236                appendText(text, doNotAppend);
2237            }
2238        }
2239        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2240            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2241            return;
2242        }
2243        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2244        if (message != null) {
2245            startDownloadable(message);
2246        }
2247    }
2248
2249    private List<Uri> extractUris(final Bundle extras) {
2250        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2251        if (uris != null) {
2252            return uris;
2253        }
2254        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2255        if (uri != null) {
2256            return Collections.singletonList(uri);
2257        } else {
2258            return null;
2259        }
2260    }
2261
2262    private List<Uri> cleanUris(final List<Uri> uris) {
2263        Iterator<Uri> iterator = uris.iterator();
2264        while (iterator.hasNext()) {
2265            final Uri uri = iterator.next();
2266            if (FileBackend.weOwnFile(getActivity(), uri)) {
2267                iterator.remove();
2268                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2269            }
2270        }
2271        return uris;
2272    }
2273
2274    private boolean showBlockSubmenu(View view) {
2275        final Jid jid = conversation.getJid();
2276        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2277        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2278        popupMenu.inflate(R.menu.block);
2279        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2280        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2281        popupMenu.setOnMenuItemClickListener(menuItem -> {
2282            Blockable blockable;
2283            switch (menuItem.getItemId()) {
2284                case R.id.reject:
2285                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2286                    updateSnackBar(conversation);
2287                    return true;
2288                case R.id.block_domain:
2289                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2290                    break;
2291                default:
2292                    blockable = conversation;
2293            }
2294            BlockContactDialog.show(activity, blockable);
2295            return true;
2296        });
2297        popupMenu.show();
2298        return true;
2299    }
2300
2301    private void updateSnackBar(final Conversation conversation) {
2302        final Account account = conversation.getAccount();
2303        final XmppConnection connection = account.getXmppConnection();
2304        final int mode = conversation.getMode();
2305        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2306        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2307            return;
2308        }
2309        if (account.getStatus() == Account.State.DISABLED) {
2310            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2311        } else if (conversation.isBlocked()) {
2312            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2313        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2314            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2315        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2316            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2317        } else if (mode == Conversation.MODE_MULTI
2318                && !conversation.getMucOptions().online()
2319                && account.getStatus() == Account.State.ONLINE) {
2320            switch (conversation.getMucOptions().getError()) {
2321                case NICK_IN_USE:
2322                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2323                    break;
2324                case NO_RESPONSE:
2325                    showSnackbar(R.string.joining_conference, 0, null);
2326                    break;
2327                case SERVER_NOT_FOUND:
2328                    if (conversation.receivedMessagesCount() > 0) {
2329                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2330                    } else {
2331                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2332                    }
2333                    break;
2334                case REMOTE_SERVER_TIMEOUT:
2335                    if (conversation.receivedMessagesCount() > 0) {
2336                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2337                    } else {
2338                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2339                    }
2340                    break;
2341                case PASSWORD_REQUIRED:
2342                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2343                    break;
2344                case BANNED:
2345                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2346                    break;
2347                case MEMBERS_ONLY:
2348                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2349                    break;
2350                case RESOURCE_CONSTRAINT:
2351                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2352                    break;
2353                case KICKED:
2354                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2355                    break;
2356                case UNKNOWN:
2357                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2358                    break;
2359                case INVALID_NICK:
2360                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2361                case SHUTDOWN:
2362                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2363                    break;
2364                case DESTROYED:
2365                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2366                    break;
2367                case NON_ANONYMOUS:
2368                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2369                    break;
2370                default:
2371                    hideSnackbar();
2372                    break;
2373            }
2374        } else if (account.hasPendingPgpIntent(conversation)) {
2375            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2376        } else if (connection != null
2377                && connection.getFeatures().blocking()
2378                && conversation.countMessages() != 0
2379                && !conversation.isBlocked()
2380                && conversation.isWithStranger()) {
2381            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2382        } else {
2383            hideSnackbar();
2384        }
2385    }
2386
2387    @Override
2388    public void refresh() {
2389        if (this.binding == null) {
2390            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2391            return;
2392        }
2393        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2394            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2395                activity.onConversationArchived(this.conversation);
2396                return;
2397            }
2398        }
2399        this.refresh(true);
2400    }
2401
2402    private void refresh(boolean notifyConversationRead) {
2403        synchronized (this.messageList) {
2404            if (this.conversation != null) {
2405                conversation.populateWithMessages(this.messageList);
2406                updateSnackBar(conversation);
2407                updateStatusMessages();
2408                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2409                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2410                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2411                }
2412                this.messageListAdapter.notifyDataSetChanged();
2413                updateChatMsgHint();
2414                if (notifyConversationRead && activity != null) {
2415                    binding.messagesView.post(this::fireReadEvent);
2416                }
2417                updateSendButton();
2418                updateEditablity();
2419            }
2420        }
2421    }
2422
2423    protected void messageSent() {
2424        mSendingPgpMessage.set(false);
2425        this.binding.textinput.setText("");
2426        if (conversation.setCorrectingMessage(null)) {
2427            this.binding.textinput.append(conversation.getDraftMessage());
2428            conversation.setDraftMessage(null);
2429        }
2430        storeNextMessage();
2431        updateChatMsgHint();
2432        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2433        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2434        if (prefScrollToBottom || scrolledToBottom()) {
2435            new Handler().post(() -> {
2436                int size = messageList.size();
2437                this.binding.messagesView.setSelection(size - 1);
2438            });
2439        }
2440    }
2441
2442    private boolean storeNextMessage() {
2443        return storeNextMessage(this.binding.textinput.getText().toString());
2444    }
2445
2446    private boolean storeNextMessage(String msg) {
2447        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2448        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2449            this.activity.xmppConnectionService.updateConversation(this.conversation);
2450            return true;
2451        }
2452        return false;
2453    }
2454
2455    public void doneSendingPgpMessage() {
2456        mSendingPgpMessage.set(false);
2457    }
2458
2459    public long getMaxHttpUploadSize(Conversation conversation) {
2460        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2461        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2462    }
2463
2464    private void updateEditablity() {
2465        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2466        this.binding.textinput.setFocusable(canWrite);
2467        this.binding.textinput.setFocusableInTouchMode(canWrite);
2468        this.binding.textSendButton.setEnabled(canWrite);
2469        this.binding.textinput.setCursorVisible(canWrite);
2470        this.binding.textinput.setEnabled(canWrite);
2471    }
2472
2473    public void updateSendButton() {
2474        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2475        final Conversation c = this.conversation;
2476        final Presence.Status status;
2477        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2478        final SendButtonAction action;
2479        if (hasAttachments) {
2480            action = SendButtonAction.TEXT;
2481        } else {
2482            action = SendButtonTool.getAction(getActivity(), c, text);
2483        }
2484        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2485            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2486                status = Presence.Status.OFFLINE;
2487            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2488                status = c.getContact().getShownStatus();
2489            } else {
2490                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2491            }
2492        } else {
2493            status = Presence.Status.OFFLINE;
2494        }
2495        this.binding.textSendButton.setTag(action);
2496        final Activity activity = getActivity();
2497        if (activity != null) {
2498            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2499        }
2500    }
2501
2502    protected void updateStatusMessages() {
2503        DateSeparator.addAll(this.messageList);
2504        if (showLoadMoreMessages(conversation)) {
2505            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2506        }
2507        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2508            ChatState state = conversation.getIncomingChatState();
2509            if (state == ChatState.COMPOSING) {
2510                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2511            } else if (state == ChatState.PAUSED) {
2512                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2513            } else {
2514                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2515                    final Message message = this.messageList.get(i);
2516                    if (message.getType() != Message.TYPE_STATUS) {
2517                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2518                            return;
2519                        } else {
2520                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2521                                this.messageList.add(i + 1,
2522                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2523                                return;
2524                            }
2525                        }
2526                    }
2527                }
2528            }
2529        } else {
2530            final MucOptions mucOptions = conversation.getMucOptions();
2531            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2532            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2533            ChatState state = ChatState.COMPOSING;
2534            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2535            if (users.size() == 0) {
2536                state = ChatState.PAUSED;
2537                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2538            }
2539            if (mucOptions.isPrivateAndNonAnonymous()) {
2540                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2541                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2542                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2543                    for (ReadByMarker marker : markersForMessage) {
2544                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2545                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2546                            MucOptions.User user = mucOptions.findUser(marker);
2547                            if (user != null && !users.contains(user)) {
2548                                shownMarkers.add(user);
2549                            }
2550                        }
2551                    }
2552                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2553                    final Message statusMessage;
2554                    final int size = shownMarkers.size();
2555                    if (size > 1) {
2556                        final String body;
2557                        if (size <= 4) {
2558                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2559                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2560                            body = getString(R.string.everyone_has_read_up_to_this_point);
2561                        } else {
2562                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2563                        }
2564                        statusMessage = Message.createStatusMessage(conversation, body);
2565                        statusMessage.setCounterparts(shownMarkers);
2566                    } else if (size == 1) {
2567                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2568                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2569                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2570                    } else {
2571                        statusMessage = null;
2572                    }
2573                    if (statusMessage != null) {
2574                        this.messageList.add(i + 1, statusMessage);
2575                    }
2576                    addedMarkers.add(markerForSender);
2577                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2578                        break;
2579                    }
2580                }
2581            }
2582            if (users.size() > 0) {
2583                Message statusMessage;
2584                if (users.size() == 1) {
2585                    MucOptions.User user = users.get(0);
2586                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2587                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2588                    statusMessage.setTrueCounterpart(user.getRealJid());
2589                    statusMessage.setCounterpart(user.getFullJid());
2590                } else {
2591                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2592                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2593                    statusMessage.setCounterparts(users);
2594                }
2595                this.messageList.add(statusMessage);
2596            }
2597
2598        }
2599    }
2600
2601    private void stopScrolling() {
2602        long now = SystemClock.uptimeMillis();
2603        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2604        binding.messagesView.dispatchTouchEvent(cancel);
2605    }
2606
2607    private boolean showLoadMoreMessages(final Conversation c) {
2608        if (activity == null || activity.xmppConnectionService == null) {
2609            return false;
2610        }
2611        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2612        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2613        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2614    }
2615
2616    private boolean hasMamSupport(final Conversation c) {
2617        if (c.getMode() == Conversation.MODE_SINGLE) {
2618            final XmppConnection connection = c.getAccount().getXmppConnection();
2619            return connection != null && connection.getFeatures().mam();
2620        } else {
2621            return c.getMucOptions().mamSupport();
2622        }
2623    }
2624
2625    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2626        showSnackbar(message, action, clickListener, null);
2627    }
2628
2629    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2630        this.binding.snackbar.setVisibility(View.VISIBLE);
2631        this.binding.snackbar.setOnClickListener(null);
2632        this.binding.snackbarMessage.setText(message);
2633        this.binding.snackbarMessage.setOnClickListener(null);
2634        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2635        if (action != 0) {
2636            this.binding.snackbarAction.setText(action);
2637        }
2638        this.binding.snackbarAction.setOnClickListener(clickListener);
2639        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2640    }
2641
2642    protected void hideSnackbar() {
2643        this.binding.snackbar.setVisibility(View.GONE);
2644    }
2645
2646    protected void sendMessage(Message message) {
2647        activity.xmppConnectionService.sendMessage(message);
2648        messageSent();
2649    }
2650
2651    protected void sendPgpMessage(final Message message) {
2652        final XmppConnectionService xmppService = activity.xmppConnectionService;
2653        final Contact contact = message.getConversation().getContact();
2654        if (!activity.hasPgp()) {
2655            activity.showInstallPgpDialog();
2656            return;
2657        }
2658        if (conversation.getAccount().getPgpSignature() == null) {
2659            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2660            return;
2661        }
2662        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2663            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2664        }
2665        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2666            if (contact.getPgpKeyId() != 0) {
2667                xmppService.getPgpEngine().hasKey(contact,
2668                        new UiCallback<Contact>() {
2669
2670                            @Override
2671                            public void userInputRequired(PendingIntent pi, Contact contact) {
2672                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2673                            }
2674
2675                            @Override
2676                            public void success(Contact contact) {
2677                                encryptTextMessage(message);
2678                            }
2679
2680                            @Override
2681                            public void error(int error, Contact contact) {
2682                                activity.runOnUiThread(() -> Toast.makeText(activity,
2683                                        R.string.unable_to_connect_to_keychain,
2684                                        Toast.LENGTH_SHORT
2685                                ).show());
2686                                mSendingPgpMessage.set(false);
2687                            }
2688                        });
2689
2690            } else {
2691                showNoPGPKeyDialog(false, (dialog, which) -> {
2692                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2693                    xmppService.updateConversation(conversation);
2694                    message.setEncryption(Message.ENCRYPTION_NONE);
2695                    xmppService.sendMessage(message);
2696                    messageSent();
2697                });
2698            }
2699        } else {
2700            if (conversation.getMucOptions().pgpKeysInUse()) {
2701                if (!conversation.getMucOptions().everybodyHasKeys()) {
2702                    Toast warning = Toast
2703                            .makeText(getActivity(),
2704                                    R.string.missing_public_keys,
2705                                    Toast.LENGTH_LONG);
2706                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2707                    warning.show();
2708                }
2709                encryptTextMessage(message);
2710            } else {
2711                showNoPGPKeyDialog(true, (dialog, which) -> {
2712                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2713                    message.setEncryption(Message.ENCRYPTION_NONE);
2714                    xmppService.updateConversation(conversation);
2715                    xmppService.sendMessage(message);
2716                    messageSent();
2717                });
2718            }
2719        }
2720    }
2721
2722    public void encryptTextMessage(Message message) {
2723        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2724                new UiCallback<Message>() {
2725
2726                    @Override
2727                    public void userInputRequired(PendingIntent pi, Message message) {
2728                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2729                    }
2730
2731                    @Override
2732                    public void success(Message message) {
2733                        //TODO the following two call can be made before the callback
2734                        getActivity().runOnUiThread(() -> messageSent());
2735                    }
2736
2737                    @Override
2738                    public void error(final int error, Message message) {
2739                        getActivity().runOnUiThread(() -> {
2740                            doneSendingPgpMessage();
2741                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2742                        });
2743
2744                    }
2745                });
2746    }
2747
2748    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2749        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2750        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2751        if (plural) {
2752            builder.setTitle(getString(R.string.no_pgp_keys));
2753            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2754        } else {
2755            builder.setTitle(getString(R.string.no_pgp_key));
2756            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2757        }
2758        builder.setNegativeButton(getString(R.string.cancel), null);
2759        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2760        builder.create().show();
2761    }
2762
2763    public void appendText(String text, final boolean doNotAppend) {
2764        if (text == null) {
2765            return;
2766        }
2767        final Editable editable = this.binding.textinput.getText();
2768        String previous = editable == null ? "" : editable.toString();
2769        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2770            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2771            return;
2772        }
2773        if (UIHelper.isLastLineQuote(previous)) {
2774            text = '\n' + text;
2775        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2776            text = " " + text;
2777        }
2778        this.binding.textinput.append(text);
2779    }
2780
2781    @Override
2782    public boolean onEnterPressed(final boolean isCtrlPressed) {
2783        if (isCtrlPressed || enterIsSend()) {
2784            sendMessage();
2785            return true;
2786        }
2787        return false;
2788    }
2789
2790    private boolean enterIsSend() {
2791        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2792        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2793    }
2794
2795    public boolean onArrowUpCtrlPressed() {
2796        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2797        if (lastEditableMessage != null) {
2798            correctMessage(lastEditableMessage);
2799            return true;
2800        } else {
2801            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2802            return false;
2803        }
2804    }
2805
2806    @Override
2807    public void onTypingStarted() {
2808        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2809        if (service == null) {
2810            return;
2811        }
2812        final Account.State status = conversation.getAccount().getStatus();
2813        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2814            service.sendChatState(conversation);
2815        }
2816        runOnUiThread(this::updateSendButton);
2817    }
2818
2819    @Override
2820    public void onTypingStopped() {
2821        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2822        if (service == null) {
2823            return;
2824        }
2825        final Account.State status = conversation.getAccount().getStatus();
2826        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2827            service.sendChatState(conversation);
2828        }
2829    }
2830
2831    @Override
2832    public void onTextDeleted() {
2833        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2834        if (service == null) {
2835            return;
2836        }
2837        final Account.State status = conversation.getAccount().getStatus();
2838        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2839            service.sendChatState(conversation);
2840        }
2841        if (storeNextMessage()) {
2842            runOnUiThread(() -> {
2843                if (activity == null) {
2844                    return;
2845                }
2846                activity.onConversationsListItemUpdated();
2847            });
2848        }
2849        runOnUiThread(this::updateSendButton);
2850    }
2851
2852    @Override
2853    public void onTextChanged() {
2854        if (conversation != null && conversation.getCorrectingMessage() != null) {
2855            runOnUiThread(this::updateSendButton);
2856        }
2857    }
2858
2859    @Override
2860    public boolean onTabPressed(boolean repeated) {
2861        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2862            return false;
2863        }
2864        if (repeated) {
2865            completionIndex++;
2866        } else {
2867            lastCompletionLength = 0;
2868            completionIndex = 0;
2869            final String content = this.binding.textinput.getText().toString();
2870            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2871            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2872            firstWord = start == 0;
2873            incomplete = content.substring(start, lastCompletionCursor);
2874        }
2875        List<String> completions = new ArrayList<>();
2876        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2877            String name = user.getName();
2878            if (name != null && name.startsWith(incomplete)) {
2879                completions.add(name + (firstWord ? ": " : " "));
2880            }
2881        }
2882        Collections.sort(completions);
2883        if (completions.size() > completionIndex) {
2884            String completion = completions.get(completionIndex).substring(incomplete.length());
2885            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2886            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2887            lastCompletionLength = completion.length();
2888        } else {
2889            completionIndex = -1;
2890            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2891            lastCompletionLength = 0;
2892        }
2893        return true;
2894    }
2895
2896    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2897        try {
2898            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2899        } catch (final SendIntentException ignored) {
2900        }
2901    }
2902
2903    @Override
2904    public void onBackendConnected() {
2905        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2906        String uuid = pendingConversationsUuid.pop();
2907        if (uuid != null) {
2908            if (!findAndReInitByUuidOrArchive(uuid)) {
2909                return;
2910            }
2911        } else {
2912            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2913                clearPending();
2914                activity.onConversationArchived(conversation);
2915                return;
2916            }
2917        }
2918        ActivityResult activityResult = postponedActivityResult.pop();
2919        if (activityResult != null) {
2920            handleActivityResult(activityResult);
2921        }
2922        clearPending();
2923    }
2924
2925    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2926        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2927        if (conversation == null) {
2928            clearPending();
2929            activity.onConversationArchived(null);
2930            return false;
2931        }
2932        reInit(conversation);
2933        ScrollState scrollState = pendingScrollState.pop();
2934        String lastMessageUuid = pendingLastMessageUuid.pop();
2935        List<Attachment> attachments = pendingMediaPreviews.pop();
2936        if (scrollState != null) {
2937            setScrollPosition(scrollState, lastMessageUuid);
2938        }
2939        if (attachments != null && attachments.size() > 0) {
2940            Log.d(Config.LOGTAG, "had attachments on restore");
2941            mediaPreviewAdapter.addMediaPreviews(attachments);
2942            toggleInputMethod();
2943        }
2944        return true;
2945    }
2946
2947    private void clearPending() {
2948        if (postponedActivityResult.clear()) {
2949            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2950            if (pendingTakePhotoUri.clear()) {
2951                Log.e(Config.LOGTAG, "cleared pending photo uri");
2952            }
2953        }
2954        if (pendingScrollState.clear()) {
2955            Log.e(Config.LOGTAG, "cleared scroll state");
2956        }
2957        if (pendingConversationsUuid.clear()) {
2958            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2959        }
2960        if (pendingMediaPreviews.clear()) {
2961            Log.e(Config.LOGTAG, "cleared pending media previews");
2962        }
2963    }
2964
2965    public Conversation getConversation() {
2966        return conversation;
2967    }
2968
2969    @Override
2970    public void onContactPictureLongClicked(View v, final Message message) {
2971        final String fingerprint;
2972        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2973            fingerprint = "pgp";
2974        } else {
2975            fingerprint = message.getFingerprint();
2976        }
2977        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2978        final Contact contact = message.getContact();
2979        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2980            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2981                final Jid cp = message.getCounterpart();
2982                if (cp == null || cp.isBareJid()) {
2983                    return;
2984                }
2985                final Jid tcp = message.getTrueCounterpart();
2986                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2987                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2988                popupMenu.inflate(R.menu.muc_details_context);
2989                final Menu menu = popupMenu.getMenu();
2990                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2991                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2992            } else {
2993                popupMenu.inflate(R.menu.one_on_one_context);
2994                popupMenu.setOnMenuItemClickListener(item -> {
2995                    switch (item.getItemId()) {
2996                        case R.id.action_contact_details:
2997                            activity.switchToContactDetails(message.getContact(), fingerprint);
2998                            break;
2999                        case R.id.action_show_qr_code:
3000                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
3001                            break;
3002                    }
3003                    return true;
3004                });
3005            }
3006        } else {
3007            popupMenu.inflate(R.menu.account_context);
3008            final Menu menu = popupMenu.getMenu();
3009            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
3010            popupMenu.setOnMenuItemClickListener(item -> {
3011                final XmppActivity activity = this.activity;
3012                if (activity == null) {
3013                    Log.e(Config.LOGTAG,"Unable to perform action. no context provided");
3014                    return true;
3015                }
3016                switch (item.getItemId()) {
3017                    case R.id.action_show_qr_code:
3018                        activity.showQrCode(conversation.getAccount().getShareableUri());
3019                        break;
3020                    case R.id.action_account_details:
3021                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3022                        break;
3023                    case R.id.action_manage_accounts:
3024                        AccountUtils.launchManageAccounts(activity);
3025                        break;
3026                }
3027                return true;
3028            });
3029        }
3030        popupMenu.show();
3031    }
3032
3033    @Override
3034    public void onContactPictureClicked(Message message) {
3035        String fingerprint;
3036        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3037            fingerprint = "pgp";
3038        } else {
3039            fingerprint = message.getFingerprint();
3040        }
3041        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3042        if (received) {
3043            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3044                Jid tcp = message.getTrueCounterpart();
3045                Jid user = message.getCounterpart();
3046                if (user != null && !user.isBareJid()) {
3047                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3048                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3049                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3050                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3051                        }
3052                        highlightInConference(user.getResource());
3053                    } else {
3054                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3055                    }
3056                }
3057                return;
3058            } else {
3059                if (!message.getContact().isSelf()) {
3060                    activity.switchToContactDetails(message.getContact(), fingerprint);
3061                    return;
3062                }
3063            }
3064        }
3065        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3066    }
3067}