ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import android.support.annotation.IdRes;
  15import android.support.annotation.NonNull;
  16import android.support.annotation.StringRes;
  17import android.support.v7.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import android.support.v13.view.inputmethod.InputConnectionCompat;
  28import android.support.v13.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.KeyEvent;
  36import android.view.LayoutInflater;
  37import android.view.Menu;
  38import android.view.MenuInflater;
  39import android.view.MenuItem;
  40import android.view.MotionEvent;
  41import android.view.View;
  42import android.view.View.OnClickListener;
  43import android.view.ViewGroup;
  44import android.view.inputmethod.EditorInfo;
  45import android.view.inputmethod.InputMethodManager;
  46import android.widget.AbsListView;
  47import android.widget.AbsListView.OnScrollListener;
  48import android.widget.AdapterView;
  49import android.widget.AdapterView.AdapterContextMenuInfo;
  50import android.widget.CheckBox;
  51import android.widget.ListView;
  52import android.widget.PopupMenu;
  53import android.widget.TextView.OnEditorActionListener;
  54import android.widget.Toast;
  55
  56import com.google.common.base.Optional;
  57
  58import java.util.ArrayList;
  59import java.util.Arrays;
  60import java.util.Collection;
  61import java.util.Collections;
  62import java.util.HashSet;
  63import java.util.Iterator;
  64import java.util.List;
  65import java.util.Set;
  66import java.util.UUID;
  67import java.util.concurrent.atomic.AtomicBoolean;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  72import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  73import eu.siacs.conversations.databinding.FragmentConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Blockable;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Conversational;
  79import eu.siacs.conversations.entities.DownloadableFile;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.MucOptions;
  82import eu.siacs.conversations.entities.MucOptions.User;
  83import eu.siacs.conversations.entities.Presence;
  84import eu.siacs.conversations.entities.ReadByMarker;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.http.HttpDownloadConnection;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.Patterns;
 116import eu.siacs.conversations.utils.QuickLoader;
 117import eu.siacs.conversations.utils.StylingHelper;
 118import eu.siacs.conversations.utils.TimeFrameUtils;
 119import eu.siacs.conversations.utils.UIHelper;
 120import eu.siacs.conversations.xml.Namespace;
 121import eu.siacs.conversations.xmpp.XmppConnection;
 122import eu.siacs.conversations.xmpp.chatstate.ChatState;
 123import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 124import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 125import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 126import eu.siacs.conversations.xmpp.jingle.Media;
 127import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 128import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 129import eu.siacs.conversations.xmpp.Jid;
 130
 131import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 132import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 133import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 134import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 135import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 136import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 137
 138
 139public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 140
 141
 142    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 143    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 144    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 145    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 146    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 147    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 148    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 149    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 150    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 151    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 152    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 153    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 154    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 155    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 156    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 157    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 158    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 159
 160    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 161    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 162    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 163    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 164    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 165    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 166
 167    private final List<Message> messageList = new ArrayList<>();
 168    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 169    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 170    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 171    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 172    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 173    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 174    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 175    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 176    public Uri mPendingEditorContent = null;
 177    protected MessageAdapter messageListAdapter;
 178    private MediaPreviewAdapter mediaPreviewAdapter;
 179    private String lastMessageUuid = null;
 180    private Conversation conversation;
 181    private FragmentConversationBinding binding;
 182    private Toast messageLoaderToast;
 183    private ConversationsActivity activity;
 184    private boolean reInitRequiredOnStart = true;
 185    private OnClickListener clickToMuc = new OnClickListener() {
 186
 187        @Override
 188        public void onClick(View v) {
 189            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 190            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 191            intent.putExtra("uuid", conversation.getUuid());
 192            startActivity(intent);
 193        }
 194    };
 195    private OnClickListener leaveMuc = new OnClickListener() {
 196
 197        @Override
 198        public void onClick(View v) {
 199            activity.xmppConnectionService.archiveConversation(conversation);
 200        }
 201    };
 202    private OnClickListener joinMuc = new OnClickListener() {
 203
 204        @Override
 205        public void onClick(View v) {
 206            activity.xmppConnectionService.joinMuc(conversation);
 207        }
 208    };
 209
 210    private OnClickListener acceptJoin = new OnClickListener() {
 211        @Override
 212        public void onClick(View v) {
 213            conversation.setAttribute("accept_non_anonymous", true);
 214            activity.xmppConnectionService.updateConversation(conversation);
 215            activity.xmppConnectionService.joinMuc(conversation);
 216        }
 217    };
 218
 219    private OnClickListener enterPassword = new OnClickListener() {
 220
 221        @Override
 222        public void onClick(View v) {
 223            MucOptions muc = conversation.getMucOptions();
 224            String password = muc.getPassword();
 225            if (password == null) {
 226                password = "";
 227            }
 228            activity.quickPasswordEdit(password, value -> {
 229                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 230                return null;
 231            });
 232        }
 233    };
 234    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 235
 236        @Override
 237        public void onScrollStateChanged(AbsListView view, int scrollState) {
 238            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 239                fireReadEvent();
 240            }
 241        }
 242
 243        @Override
 244        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 245            toggleScrollDownButton(view);
 246            synchronized (ConversationFragment.this.messageList) {
 247                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 248                    long timestamp;
 249                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 250                        timestamp = messageList.get(1).getTimeSent();
 251                    } else {
 252                        timestamp = messageList.get(0).getTimeSent();
 253                    }
 254                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 255                        @Override
 256                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 257                            if (ConversationFragment.this.conversation != conversation) {
 258                                conversation.messagesLoaded.set(true);
 259                                return;
 260                            }
 261                            runOnUiThread(() -> {
 262                                synchronized (messageList) {
 263                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 264                                    Message message = null;
 265                                    int childPos;
 266                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 267                                        message = messageList.get(oldPosition + childPos);
 268                                        if (message.getType() != Message.TYPE_STATUS) {
 269                                            break;
 270                                        }
 271                                    }
 272                                    final String uuid = message != null ? message.getUuid() : null;
 273                                    View v = binding.messagesView.getChildAt(childPos);
 274                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 275                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 276                                    try {
 277                                        updateStatusMessages();
 278                                    } catch (IllegalStateException e) {
 279                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 280                                    }
 281                                    messageListAdapter.notifyDataSetChanged();
 282                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 283                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 284                                    if (messageLoaderToast != null) {
 285                                        messageLoaderToast.cancel();
 286                                    }
 287                                    conversation.messagesLoaded.set(true);
 288                                }
 289                            });
 290                        }
 291
 292                        @Override
 293                        public void informUser(final int resId) {
 294
 295                            runOnUiThread(() -> {
 296                                if (messageLoaderToast != null) {
 297                                    messageLoaderToast.cancel();
 298                                }
 299                                if (ConversationFragment.this.conversation != conversation) {
 300                                    return;
 301                                }
 302                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 303                                messageLoaderToast.show();
 304                            });
 305
 306                        }
 307                    });
 308
 309                }
 310            }
 311        }
 312    };
 313    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 314        @Override
 315        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 316            // try to get permission to read the image, if applicable
 317            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 318                try {
 319                    inputContentInfo.requestPermission();
 320                } catch (Exception e) {
 321                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 322                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 323                    ).show();
 324                    return false;
 325                }
 326            }
 327            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 328                attachEditorContentToConversation(inputContentInfo.getContentUri());
 329            } else {
 330                mPendingEditorContent = inputContentInfo.getContentUri();
 331            }
 332            return true;
 333        }
 334    };
 335    private Message selectedMessage;
 336    private OnClickListener mEnableAccountListener = new OnClickListener() {
 337        @Override
 338        public void onClick(View v) {
 339            final Account account = conversation == null ? null : conversation.getAccount();
 340            if (account != null) {
 341                account.setOption(Account.OPTION_DISABLED, false);
 342                activity.xmppConnectionService.updateAccount(account);
 343            }
 344        }
 345    };
 346    private OnClickListener mUnblockClickListener = new OnClickListener() {
 347        @Override
 348        public void onClick(final View v) {
 349            v.post(() -> v.setVisibility(View.INVISIBLE));
 350            if (conversation.isDomainBlocked()) {
 351                BlockContactDialog.show(activity, conversation);
 352            } else {
 353                unblockConversation(conversation);
 354            }
 355        }
 356    };
 357    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 358    private OnClickListener mAddBackClickListener = new OnClickListener() {
 359
 360        @Override
 361        public void onClick(View v) {
 362            final Contact contact = conversation == null ? null : conversation.getContact();
 363            if (contact != null) {
 364                activity.xmppConnectionService.createContact(contact, true);
 365                activity.switchToContactDetails(contact);
 366            }
 367        }
 368    };
 369    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 370    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 371        @Override
 372        public void onClick(View v) {
 373            final Contact contact = conversation == null ? null : conversation.getContact();
 374            if (contact != null) {
 375                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 376                        activity.xmppConnectionService.getPresenceGenerator()
 377                                .sendPresenceUpdatesTo(contact));
 378                hideSnackbar();
 379            }
 380        }
 381    };
 382    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 383
 384        @Override
 385        public void onClick(View v) {
 386            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 387            if (pendingIntent != null) {
 388                try {
 389                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 390                            REQUEST_DECRYPT_PGP,
 391                            null,
 392                            0,
 393                            0,
 394                            0);
 395                } catch (SendIntentException e) {
 396                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 397                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 398                }
 399            }
 400            updateSnackBar(conversation);
 401        }
 402    };
 403    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 404    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 405        if (actionId == EditorInfo.IME_ACTION_SEND) {
 406            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 407            if (imm != null && imm.isFullscreenMode()) {
 408                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 409            }
 410            sendMessage();
 411            return true;
 412        } else {
 413            return false;
 414        }
 415    };
 416    private OnClickListener mScrollButtonListener = new OnClickListener() {
 417
 418        @Override
 419        public void onClick(View v) {
 420            stopScrolling();
 421            setSelection(binding.messagesView.getCount() - 1, true);
 422        }
 423    };
 424    private OnClickListener mSendButtonListener = new OnClickListener() {
 425
 426        @Override
 427        public void onClick(View v) {
 428            Object tag = v.getTag();
 429            if (tag instanceof SendButtonAction) {
 430                SendButtonAction action = (SendButtonAction) tag;
 431                switch (action) {
 432                    case TAKE_PHOTO:
 433                    case RECORD_VIDEO:
 434                    case SEND_LOCATION:
 435                    case RECORD_VOICE:
 436                    case CHOOSE_PICTURE:
 437                        attachFile(action.toChoice());
 438                        break;
 439                    case CANCEL:
 440                        if (conversation != null) {
 441                            if (conversation.setCorrectingMessage(null)) {
 442                                binding.textinput.setText("");
 443                                binding.textinput.append(conversation.getDraftMessage());
 444                                conversation.setDraftMessage(null);
 445                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 446                                conversation.setNextCounterpart(null);
 447                                binding.textinput.setText("");
 448                            } else {
 449                                binding.textinput.setText("");
 450                            }
 451                            updateChatMsgHint();
 452                            updateSendButton();
 453                            updateEditablity();
 454                        }
 455                        break;
 456                    default:
 457                        sendMessage();
 458                }
 459            } else {
 460                sendMessage();
 461            }
 462        }
 463    };
 464    private int completionIndex = 0;
 465    private int lastCompletionLength = 0;
 466    private String incomplete;
 467    private int lastCompletionCursor;
 468    private boolean firstWord = false;
 469    private Message mPendingDownloadableMessage;
 470
 471    private static ConversationFragment findConversationFragment(Activity activity) {
 472        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 473        if (fragment instanceof ConversationFragment) {
 474            return (ConversationFragment) fragment;
 475        }
 476        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 477        if (fragment instanceof ConversationFragment) {
 478            return (ConversationFragment) fragment;
 479        }
 480        return null;
 481    }
 482
 483    public static void startStopPending(Activity activity) {
 484        ConversationFragment fragment = findConversationFragment(activity);
 485        if (fragment != null) {
 486            fragment.messageListAdapter.startStopPending();
 487        }
 488    }
 489
 490    public static void downloadFile(Activity activity, Message message) {
 491        ConversationFragment fragment = findConversationFragment(activity);
 492        if (fragment != null) {
 493            fragment.startDownloadable(message);
 494        }
 495    }
 496
 497    public static void registerPendingMessage(Activity activity, Message message) {
 498        ConversationFragment fragment = findConversationFragment(activity);
 499        if (fragment != null) {
 500            fragment.pendingMessage.push(message);
 501        }
 502    }
 503
 504    public static void openPendingMessage(Activity activity) {
 505        ConversationFragment fragment = findConversationFragment(activity);
 506        if (fragment != null) {
 507            Message message = fragment.pendingMessage.pop();
 508            if (message != null) {
 509                fragment.messageListAdapter.openDownloadable(message);
 510            }
 511        }
 512    }
 513
 514    public static Conversation getConversation(Activity activity) {
 515        return getConversation(activity, R.id.secondary_fragment);
 516    }
 517
 518    private static Conversation getConversation(Activity activity, @IdRes int res) {
 519        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 520        if (fragment != null && fragment instanceof ConversationFragment) {
 521            return ((ConversationFragment) fragment).getConversation();
 522        } else {
 523            return null;
 524        }
 525    }
 526
 527    public static ConversationFragment get(Activity activity) {
 528        FragmentManager fragmentManager = activity.getFragmentManager();
 529        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 530        if (fragment != null && fragment instanceof ConversationFragment) {
 531            return (ConversationFragment) fragment;
 532        } else {
 533            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 534            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 535        }
 536    }
 537
 538    public static Conversation getConversationReliable(Activity activity) {
 539        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 540        if (conversation != null) {
 541            return conversation;
 542        }
 543        return getConversation(activity, R.id.main_fragment);
 544    }
 545
 546    private static boolean scrolledToBottom(AbsListView listView) {
 547        final int count = listView.getCount();
 548        if (count == 0) {
 549            return true;
 550        } else if (listView.getLastVisiblePosition() == count - 1) {
 551            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 552            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 553        } else {
 554            return false;
 555        }
 556    }
 557
 558    private void toggleScrollDownButton() {
 559        toggleScrollDownButton(binding.messagesView);
 560    }
 561
 562    private void toggleScrollDownButton(AbsListView listView) {
 563        if (conversation == null) {
 564            return;
 565        }
 566        if (scrolledToBottom(listView)) {
 567            lastMessageUuid = null;
 568            hideUnreadMessagesCount();
 569        } else {
 570            binding.scrollToBottomButton.setEnabled(true);
 571            binding.scrollToBottomButton.show();
 572            if (lastMessageUuid == null) {
 573                lastMessageUuid = conversation.getLatestMessage().getUuid();
 574            }
 575            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 576                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 577            }
 578        }
 579    }
 580
 581    private int getIndexOf(String uuid, List<Message> messages) {
 582        if (uuid == null) {
 583            return messages.size() - 1;
 584        }
 585        for (int i = 0; i < messages.size(); ++i) {
 586            if (uuid.equals(messages.get(i).getUuid())) {
 587                return i;
 588            } else {
 589                Message next = messages.get(i);
 590                while (next != null && next.wasMergedIntoPrevious()) {
 591                    if (uuid.equals(next.getUuid())) {
 592                        return i;
 593                    }
 594                    next = next.next();
 595                }
 596
 597            }
 598        }
 599        return -1;
 600    }
 601
 602    private ScrollState getScrollPosition() {
 603        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 604        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 605            return null;
 606        } else {
 607            final int pos = listView.getFirstVisiblePosition();
 608            final View view = listView.getChildAt(0);
 609            if (view == null) {
 610                return null;
 611            } else {
 612                return new ScrollState(pos, view.getTop());
 613            }
 614        }
 615    }
 616
 617    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 618        if (scrollPosition != null) {
 619
 620            this.lastMessageUuid = lastMessageUuid;
 621            if (lastMessageUuid != null) {
 622                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 623            }
 624            //TODO maybe this needs a 'post'
 625            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 626            toggleScrollDownButton();
 627        }
 628    }
 629
 630    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 631        if (conversation == null) {
 632            return;
 633        }
 634        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 635
 636            @Override
 637            public void success(Message message) {
 638
 639            }
 640
 641            @Override
 642            public void error(int errorCode, Message object) {
 643                //TODO show possible pgp error
 644            }
 645
 646            @Override
 647            public void userInputRequired(PendingIntent pi, Message object) {
 648
 649            }
 650        });
 651    }
 652
 653    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 654        if (conversation == null) {
 655            return;
 656        }
 657        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 658        prepareFileToast.show();
 659        activity.delegateUriPermissionsToService(uri);
 660        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 661            @Override
 662            public void inform(final String text) {
 663                hidePrepareFileToast(prepareFileToast);
 664                runOnUiThread(() -> activity.replaceToast(text));
 665            }
 666
 667            @Override
 668            public void success(Message message) {
 669                runOnUiThread(() -> activity.hideToast());
 670                hidePrepareFileToast(prepareFileToast);
 671            }
 672
 673            @Override
 674            public void error(final int errorCode, Message message) {
 675                hidePrepareFileToast(prepareFileToast);
 676                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 677
 678            }
 679
 680            @Override
 681            public void userInputRequired(PendingIntent pi, Message message) {
 682                hidePrepareFileToast(prepareFileToast);
 683            }
 684        });
 685    }
 686
 687    public void attachEditorContentToConversation(Uri uri) {
 688        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 689        toggleInputMethod();
 690    }
 691
 692    private void attachImageToConversation(Conversation conversation, Uri uri) {
 693        if (conversation == null) {
 694            return;
 695        }
 696        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 697        prepareFileToast.show();
 698        activity.delegateUriPermissionsToService(uri);
 699        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 700                new UiCallback<Message>() {
 701
 702                    @Override
 703                    public void userInputRequired(PendingIntent pi, Message object) {
 704                        hidePrepareFileToast(prepareFileToast);
 705                    }
 706
 707                    @Override
 708                    public void success(Message message) {
 709                        hidePrepareFileToast(prepareFileToast);
 710                    }
 711
 712                    @Override
 713                    public void error(final int error, Message message) {
 714                        hidePrepareFileToast(prepareFileToast);
 715                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 716                    }
 717                });
 718    }
 719
 720    private void hidePrepareFileToast(final Toast prepareFileToast) {
 721        if (prepareFileToast != null && activity != null) {
 722            activity.runOnUiThread(prepareFileToast::cancel);
 723        }
 724    }
 725
 726    private void sendMessage() {
 727        if (mediaPreviewAdapter.hasAttachments()) {
 728            commitAttachments();
 729            return;
 730        }
 731        final Editable text = this.binding.textinput.getText();
 732        final String body = text == null ? "" : text.toString();
 733        final Conversation conversation = this.conversation;
 734        if (body.length() == 0 || conversation == null) {
 735            return;
 736        }
 737        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 738            return;
 739        }
 740        final Message message;
 741        if (conversation.getCorrectingMessage() == null) {
 742            message = new Message(conversation, body, conversation.getNextEncryption());
 743            Message.configurePrivateMessage(message);
 744        } else {
 745            message = conversation.getCorrectingMessage();
 746            message.setBody(body);
 747            message.putEdited(message.getUuid(), message.getServerMsgId());
 748            message.setServerMsgId(null);
 749            message.setUuid(UUID.randomUUID().toString());
 750        }
 751        switch (conversation.getNextEncryption()) {
 752            case Message.ENCRYPTION_PGP:
 753                sendPgpMessage(message);
 754                break;
 755            default:
 756                sendMessage(message);
 757        }
 758    }
 759
 760    protected boolean trustKeysIfNeeded(int requestCode) {
 761        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 762        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 763        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 764        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 765        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 766        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 767        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 768        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 769        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 770            axolotlService.createSessionsIfNeeded(conversation);
 771            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 772            String[] contacts = new String[targets.size()];
 773            for (int i = 0; i < contacts.length; ++i) {
 774                contacts[i] = targets.get(i).toString();
 775            }
 776            intent.putExtra("contacts", contacts);
 777            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toEscapedString());
 778            intent.putExtra("conversation", conversation.getUuid());
 779            startActivityForResult(intent, requestCode);
 780            return true;
 781        } else {
 782            return false;
 783        }
 784    }
 785
 786    public void updateChatMsgHint() {
 787        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 788        if (conversation.getCorrectingMessage() != null) {
 789            this.binding.textInputHint.setVisibility(View.GONE);
 790            this.binding.textinput.setHint(R.string.send_corrected_message);
 791        } else if (multi && conversation.getNextCounterpart() != null) {
 792            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 793            this.binding.textInputHint.setVisibility(View.VISIBLE);
 794            this.binding.textInputHint.setText(getString(
 795                    R.string.send_private_message_to,
 796                    conversation.getNextCounterpart().getResource()));
 797        } else if (multi && !conversation.getMucOptions().participating()) {
 798            this.binding.textInputHint.setVisibility(View.GONE);
 799            this.binding.textinput.setHint(R.string.you_are_not_participating);
 800        } else {
 801            this.binding.textInputHint.setVisibility(View.GONE);
 802            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 803            getActivity().invalidateOptionsMenu();
 804        }
 805    }
 806
 807    public void setupIme() {
 808        this.binding.textinput.refreshIme();
 809    }
 810
 811    private void handleActivityResult(ActivityResult activityResult) {
 812        if (activityResult.resultCode == Activity.RESULT_OK) {
 813            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 814        } else {
 815            handleNegativeActivityResult(activityResult.requestCode);
 816        }
 817    }
 818
 819    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 820        switch (requestCode) {
 821            case REQUEST_TRUST_KEYS_TEXT:
 822                sendMessage();
 823                break;
 824            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 825                commitAttachments();
 826                break;
 827            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 828                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 829                mediaPreviewAdapter.addMediaPreviews(imageUris);
 830                toggleInputMethod();
 831                break;
 832            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 833                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 834                if (takePhotoUri != null) {
 835                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 836                    toggleInputMethod();
 837                } else {
 838                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 839                }
 840                break;
 841            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 842            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 843            case ATTACHMENT_CHOICE_RECORD_VOICE:
 844                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 845                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 846                mediaPreviewAdapter.addMediaPreviews(fileUris);
 847                toggleInputMethod();
 848                break;
 849            case ATTACHMENT_CHOICE_LOCATION:
 850                double latitude = data.getDoubleExtra("latitude", 0);
 851                double longitude = data.getDoubleExtra("longitude", 0);
 852                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 853                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 854                toggleInputMethod();
 855                break;
 856            case REQUEST_INVITE_TO_CONVERSATION:
 857                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 858                if (invite != null) {
 859                    if (invite.execute(activity)) {
 860                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 861                        activity.mToast.show();
 862                    }
 863                }
 864                break;
 865        }
 866    }
 867
 868    private void commitAttachments() {
 869        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 870        if (anyNeedsExternalStoragePermission(attachments) && !hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 871            return;
 872        }
 873        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 874            return;
 875        }
 876        final PresenceSelector.OnPresenceSelected callback = () -> {
 877            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 878                final Attachment attachment = i.next();
 879                if (attachment.getType() == Attachment.Type.LOCATION) {
 880                    attachLocationToConversation(conversation, attachment.getUri());
 881                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 882                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 883                    attachImageToConversation(conversation, attachment.getUri());
 884                } else {
 885                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 886                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 887                }
 888            }
 889            mediaPreviewAdapter.notifyDataSetChanged();
 890            toggleInputMethod();
 891        };
 892        if (conversation == null
 893                || conversation.getMode() == Conversation.MODE_MULTI
 894                || Attachment.canBeSendInband(attachments)
 895                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 896            callback.onPresenceSelected();
 897        } else {
 898            activity.selectPresence(conversation, callback);
 899        }
 900    }
 901
 902
 903    private static boolean anyNeedsExternalStoragePermission(final Collection<Attachment> attachments) {
 904        for (final Attachment attachment : attachments) {
 905            if (attachment.getType() != Attachment.Type.LOCATION) {
 906                return true;
 907            }
 908        }
 909        return false;
 910    }
 911
 912    public void toggleInputMethod() {
 913        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 914        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 915        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 916        updateSendButton();
 917    }
 918
 919    private void handleNegativeActivityResult(int requestCode) {
 920        switch (requestCode) {
 921            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 922                if (pendingTakePhotoUri.clear()) {
 923                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 924                }
 925                break;
 926        }
 927    }
 928
 929    @Override
 930    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 931        super.onActivityResult(requestCode, resultCode, data);
 932        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 933        if (activity != null && activity.xmppConnectionService != null) {
 934            handleActivityResult(activityResult);
 935        } else {
 936            this.postponedActivityResult.push(activityResult);
 937        }
 938    }
 939
 940    public void unblockConversation(final Blockable conversation) {
 941        activity.xmppConnectionService.sendUnblockRequest(conversation);
 942    }
 943
 944    @Override
 945    public void onAttach(Activity activity) {
 946        super.onAttach(activity);
 947        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 948        if (activity instanceof ConversationsActivity) {
 949            this.activity = (ConversationsActivity) activity;
 950        } else {
 951            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 952        }
 953    }
 954
 955    @Override
 956    public void onDetach() {
 957        super.onDetach();
 958        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 959    }
 960
 961    @Override
 962    public void onCreate(Bundle savedInstanceState) {
 963        super.onCreate(savedInstanceState);
 964        setHasOptionsMenu(true);
 965    }
 966
 967    @Override
 968    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 969        menuInflater.inflate(R.menu.fragment_conversation, menu);
 970        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 971        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 972        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 973        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 974        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 975        final MenuItem menuCall = menu.findItem(R.id.action_call);
 976        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
 977        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 978        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
 979
 980
 981        if (conversation != null) {
 982            if (conversation.getMode() == Conversation.MODE_MULTI) {
 983                menuContactDetails.setVisible(false);
 984                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 985                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 986                menuCall.setVisible(false);
 987                menuOngoingCall.setVisible(false);
 988            } else {
 989                final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
 990                if (ongoingRtpSession.isPresent()) {
 991                    menuOngoingCall.setVisible(true);
 992                    menuCall.setVisible(false);
 993                } else {
 994                    menuOngoingCall.setVisible(false);
 995                    final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 996                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 997                    menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 998                }
 999                menuContactDetails.setVisible(!this.conversation.withSelf());
1000                menuMucDetails.setVisible(false);
1001                final XmppConnectionService service = activity.xmppConnectionService;
1002                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
1003            }
1004            if (conversation.isMuted()) {
1005                menuMute.setVisible(false);
1006            } else {
1007                menuUnmute.setVisible(false);
1008            }
1009            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1010            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1011            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1012                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1013            } else {
1014                menuTogglePinned.setTitle(R.string.add_to_favorites);
1015            }
1016        }
1017        super.onCreateOptionsMenu(menu, menuInflater);
1018    }
1019
1020    @Override
1021    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1022        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1023        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
1024
1025        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
1026
1027        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1028        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1029
1030        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1031
1032        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1033        binding.messagesView.setOnScrollListener(mOnScrollListener);
1034        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1035        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1036        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1037        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1038        messageListAdapter.setOnContactPictureClicked(this);
1039        messageListAdapter.setOnContactPictureLongClicked(this);
1040        messageListAdapter.setOnQuoteListener(this::quoteText);
1041        binding.messagesView.setAdapter(messageListAdapter);
1042
1043        registerForContextMenu(binding.messagesView);
1044
1045        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1046            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1047        }
1048
1049        return binding.getRoot();
1050    }
1051    @Override
1052    public void onDestroyView() {
1053        super.onDestroyView();
1054        Log.d(Config.LOGTAG,"ConversationFragment.onDestroyView()");
1055        messageListAdapter.setOnContactPictureClicked(null);
1056        messageListAdapter.setOnContactPictureLongClicked(null);
1057        messageListAdapter.setOnQuoteListener(null);
1058    }
1059
1060    private void quoteText(String text) {
1061        if (binding.textinput.isEnabled()) {
1062            binding.textinput.insertAsQuote(text);
1063            binding.textinput.requestFocus();
1064            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1065            if (inputMethodManager != null) {
1066                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1067            }
1068        }
1069    }
1070
1071    private void quoteMessage(Message message) {
1072        quoteText(MessageUtils.prepareQuote(message));
1073    }
1074
1075    @Override
1076    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1077        synchronized (this.messageList) {
1078            super.onCreateContextMenu(menu, v, menuInfo);
1079            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1080            this.selectedMessage = this.messageList.get(acmi.position);
1081            populateContextMenu(menu);
1082        }
1083    }
1084
1085    private void populateContextMenu(ContextMenu menu) {
1086        final Message m = this.selectedMessage;
1087        final Transferable t = m.getTransferable();
1088        Message relevantForCorrection = m;
1089        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1090            relevantForCorrection = relevantForCorrection.next();
1091        }
1092        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1093
1094            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1095                return;
1096            }
1097
1098            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1099                return;
1100            }
1101
1102            final boolean deleted = m.isDeleted();
1103            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1104                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1105            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1106            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1107            menu.setHeaderTitle(R.string.message_options);
1108            MenuItem openWith = menu.findItem(R.id.open_with);
1109            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1110            MenuItem copyLink = menu.findItem(R.id.copy_link);
1111            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1112            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1113            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1114            MenuItem shareWith = menu.findItem(R.id.share_with);
1115            MenuItem sendAgain = menu.findItem(R.id.send_again);
1116            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1117            MenuItem downloadFile = menu.findItem(R.id.download_file);
1118            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1119            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1120            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1121            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1122            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1123                copyMessage.setVisible(true);
1124                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1125                String body = m.getMergedBody().toString();
1126                if (ShareUtil.containsXmppUri(body)) {
1127                    copyLink.setTitle(R.string.copy_jabber_id);
1128                    copyLink.setVisible(true);
1129                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1130                    copyLink.setVisible(true);
1131                }
1132            }
1133            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1134                retryDecryption.setVisible(true);
1135            }
1136            if (!showError
1137                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1138                    && !m.isGeoUri()
1139                    && relevantForCorrection.isLastCorrectableMessage()
1140                    && m.getConversation() instanceof Conversation) {
1141                correctMessage.setVisible(true);
1142            }
1143            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1144                shareWith.setVisible(true);
1145            }
1146            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1147                sendAgain.setVisible(true);
1148            }
1149            if (m.hasFileOnRemoteHost()
1150                    || m.isGeoUri()
1151                    || m.treatAsDownloadable()
1152                    || t instanceof HttpDownloadConnection) {
1153                copyUrl.setVisible(true);
1154            }
1155            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1156                downloadFile.setVisible(true);
1157                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1158            }
1159            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1160                    || m.getStatus() == Message.STATUS_UNSEND
1161                    || m.getStatus() == Message.STATUS_OFFERED;
1162            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1163            if (cancelable) {
1164                cancelTransmission.setVisible(true);
1165            }
1166            if (m.isFileOrImage() && !deleted && !cancelable) {
1167                String path = m.getRelativeFilePath();
1168                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1169                    deleteFile.setVisible(true);
1170                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1171                }
1172            }
1173            if (showError) {
1174                showErrorMessage.setVisible(true);
1175            }
1176            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1177            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1178                openWith.setVisible(true);
1179            }
1180        }
1181    }
1182
1183    @Override
1184    public boolean onContextItemSelected(MenuItem item) {
1185        switch (item.getItemId()) {
1186            case R.id.share_with:
1187                ShareUtil.share(activity, selectedMessage);
1188                return true;
1189            case R.id.correct_message:
1190                correctMessage(selectedMessage);
1191                return true;
1192            case R.id.copy_message:
1193                ShareUtil.copyToClipboard(activity, selectedMessage);
1194                return true;
1195            case R.id.copy_link:
1196                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1197                return true;
1198            case R.id.quote_message:
1199                quoteMessage(selectedMessage);
1200                return true;
1201            case R.id.send_again:
1202                resendMessage(selectedMessage);
1203                return true;
1204            case R.id.copy_url:
1205                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1206                return true;
1207            case R.id.download_file:
1208                startDownloadable(selectedMessage);
1209                return true;
1210            case R.id.cancel_transmission:
1211                cancelTransmission(selectedMessage);
1212                return true;
1213            case R.id.retry_decryption:
1214                retryDecryption(selectedMessage);
1215                return true;
1216            case R.id.delete_file:
1217                deleteFile(selectedMessage);
1218                return true;
1219            case R.id.show_error_message:
1220                showErrorMessage(selectedMessage);
1221                return true;
1222            case R.id.open_with:
1223                openWith(selectedMessage);
1224                return true;
1225            default:
1226                return super.onContextItemSelected(item);
1227        }
1228    }
1229
1230    @Override
1231    public boolean onOptionsItemSelected(final MenuItem item) {
1232        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1233            return false;
1234        } else if (conversation == null) {
1235            return super.onOptionsItemSelected(item);
1236        }
1237        switch (item.getItemId()) {
1238            case R.id.encryption_choice_axolotl:
1239            case R.id.encryption_choice_pgp:
1240            case R.id.encryption_choice_none:
1241                handleEncryptionSelection(item);
1242                break;
1243            case R.id.attach_choose_picture:
1244            case R.id.attach_take_picture:
1245            case R.id.attach_record_video:
1246            case R.id.attach_choose_file:
1247            case R.id.attach_record_voice:
1248            case R.id.attach_location:
1249                handleAttachmentSelection(item);
1250                break;
1251            case R.id.action_search:
1252                startSearch();
1253                break;
1254            case R.id.action_archive:
1255                activity.xmppConnectionService.archiveConversation(conversation);
1256                break;
1257            case R.id.action_contact_details:
1258                activity.switchToContactDetails(conversation.getContact());
1259                break;
1260            case R.id.action_muc_details:
1261                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1262                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1263                intent.putExtra("uuid", conversation.getUuid());
1264                startActivity(intent);
1265                break;
1266            case R.id.action_invite:
1267                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1268                break;
1269            case R.id.action_clear_history:
1270                clearHistoryDialog(conversation);
1271                break;
1272            case R.id.action_mute:
1273                muteConversationDialog(conversation);
1274                break;
1275            case R.id.action_unmute:
1276                unmuteConversation(conversation);
1277                break;
1278            case R.id.action_block:
1279            case R.id.action_unblock:
1280                final Activity activity = getActivity();
1281                if (activity instanceof XmppActivity) {
1282                    BlockContactDialog.show((XmppActivity) activity, conversation);
1283                }
1284                break;
1285            case R.id.action_audio_call:
1286                checkPermissionAndTriggerAudioCall();
1287                break;
1288            case R.id.action_video_call:
1289                checkPermissionAndTriggerVideoCall();
1290                break;
1291            case R.id.action_ongoing_call:
1292                returnToOngoingCall();
1293                break;
1294            case R.id.action_toggle_pinned:
1295                togglePinned();
1296                break;
1297            default:
1298                break;
1299        }
1300        return super.onOptionsItemSelected(item);
1301    }
1302
1303    private void startSearch() {
1304        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1305        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1306        startActivity(intent);
1307    }
1308
1309    private void returnToOngoingCall() {
1310        final Optional<OngoingRtpSession> ongoingRtpSession = activity.xmppConnectionService.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
1311        if (ongoingRtpSession.isPresent()) {
1312            final OngoingRtpSession id = ongoingRtpSession.get();
1313            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1314            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1315            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1316            if (id instanceof AbstractJingleConnection.Id) {
1317                intent.setAction(Intent.ACTION_VIEW);
1318                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1319            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1320                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1321                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1322                } else {
1323                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1324                }
1325            }
1326            startActivity(intent);
1327        }
1328
1329    }
1330
1331    private void togglePinned() {
1332        final boolean pinned = conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1333        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1334        activity.xmppConnectionService.updateConversation(conversation);
1335        activity.invalidateOptionsMenu();
1336    }
1337
1338    private void checkPermissionAndTriggerAudioCall() {
1339        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1340            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1341            return;
1342        }
1343        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1344            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1345        }
1346    }
1347
1348    private void checkPermissionAndTriggerVideoCall() {
1349        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1350            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1351            return;
1352        }
1353        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1354            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1355        }
1356    }
1357
1358
1359    private void triggerRtpSession(final String action) {
1360        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1361            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG).show();
1362            return;
1363        }
1364
1365        final Contact contact = conversation.getContact();
1366        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1367            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1368        } else {
1369            final RtpCapability.Capability capability;
1370            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1371                capability = RtpCapability.Capability.VIDEO;
1372            } else {
1373                capability = RtpCapability.Capability.AUDIO;
1374            }
1375            PresenceSelector.selectFullJidForDirectRtpConnection(activity, contact, capability, fullJid -> {
1376                triggerRtpSession(contact.getAccount(), fullJid, action);
1377            });
1378        }
1379    }
1380
1381    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1382        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1383        intent.setAction(action);
1384        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1385        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1386        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1387        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1388        startActivity(intent);
1389    }
1390
1391    private void handleAttachmentSelection(MenuItem item) {
1392        switch (item.getItemId()) {
1393            case R.id.attach_choose_picture:
1394                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1395                break;
1396            case R.id.attach_take_picture:
1397                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1398                break;
1399            case R.id.attach_record_video:
1400                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1401                break;
1402            case R.id.attach_choose_file:
1403                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1404                break;
1405            case R.id.attach_record_voice:
1406                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1407                break;
1408            case R.id.attach_location:
1409                attachFile(ATTACHMENT_CHOICE_LOCATION);
1410                break;
1411        }
1412    }
1413
1414    private void handleEncryptionSelection(MenuItem item) {
1415        if (conversation == null) {
1416            return;
1417        }
1418        final boolean updated;
1419        switch (item.getItemId()) {
1420            case R.id.encryption_choice_none:
1421                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1422                item.setChecked(true);
1423                break;
1424            case R.id.encryption_choice_pgp:
1425                if (activity.hasPgp()) {
1426                    if (conversation.getAccount().getPgpSignature() != null) {
1427                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1428                        item.setChecked(true);
1429                    } else {
1430                        updated = false;
1431                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1432                    }
1433                } else {
1434                    activity.showInstallPgpDialog();
1435                    updated = false;
1436                }
1437                break;
1438            case R.id.encryption_choice_axolotl:
1439                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1440                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1441                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1442                item.setChecked(true);
1443                break;
1444            default:
1445                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1446                break;
1447        }
1448        if (updated) {
1449            activity.xmppConnectionService.updateConversation(conversation);
1450        }
1451        updateChatMsgHint();
1452        getActivity().invalidateOptionsMenu();
1453        activity.refreshUi();
1454    }
1455
1456    public void attachFile(final int attachmentChoice) {
1457        attachFile(attachmentChoice, true);
1458    }
1459
1460    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1461        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1462            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1463                return;
1464            }
1465        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1466            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1467                return;
1468            }
1469        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1470            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1471                return;
1472            }
1473        }
1474        if (updateRecentlyUsed) {
1475            storeRecentlyUsedQuickAction(attachmentChoice);
1476        }
1477        final int encryption = conversation.getNextEncryption();
1478        final int mode = conversation.getMode();
1479        if (encryption == Message.ENCRYPTION_PGP) {
1480            if (activity.hasPgp()) {
1481                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1482                    activity.xmppConnectionService.getPgpEngine().hasKey(
1483                            conversation.getContact(),
1484                            new UiCallback<Contact>() {
1485
1486                                @Override
1487                                public void userInputRequired(PendingIntent pi, Contact contact) {
1488                                    startPendingIntent(pi, attachmentChoice);
1489                                }
1490
1491                                @Override
1492                                public void success(Contact contact) {
1493                                    invokeAttachFileIntent(attachmentChoice);
1494                                }
1495
1496                                @Override
1497                                public void error(int error, Contact contact) {
1498                                    activity.replaceToast(getString(error));
1499                                }
1500                            });
1501                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1502                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1503                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1504                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1505                        warning.show();
1506                    }
1507                    invokeAttachFileIntent(attachmentChoice);
1508                } else {
1509                    showNoPGPKeyDialog(false, (dialog, which) -> {
1510                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1511                        activity.xmppConnectionService.updateConversation(conversation);
1512                        invokeAttachFileIntent(attachmentChoice);
1513                    });
1514                }
1515            } else {
1516                activity.showInstallPgpDialog();
1517            }
1518        } else {
1519            invokeAttachFileIntent(attachmentChoice);
1520        }
1521    }
1522
1523    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1524        try {
1525            activity.getPreferences().edit()
1526                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1527                    .apply();
1528        } catch (IllegalArgumentException e) {
1529            //just do not save
1530        }
1531    }
1532
1533    @Override
1534    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1535        if (grantResults.length > 0) {
1536            if (allGranted(grantResults)) {
1537                switch (requestCode) {
1538                    case REQUEST_START_DOWNLOAD:
1539                        if (this.mPendingDownloadableMessage != null) {
1540                            startDownloadable(this.mPendingDownloadableMessage);
1541                        }
1542                        break;
1543                    case REQUEST_ADD_EDITOR_CONTENT:
1544                        if (this.mPendingEditorContent != null) {
1545                            attachEditorContentToConversation(this.mPendingEditorContent);
1546                        }
1547                        break;
1548                    case REQUEST_COMMIT_ATTACHMENTS:
1549                        commitAttachments();
1550                        break;
1551                    case REQUEST_START_AUDIO_CALL:
1552                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1553                        break;
1554                    case REQUEST_START_VIDEO_CALL:
1555                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1556                        break;
1557                    default:
1558                        attachFile(requestCode);
1559                        break;
1560                }
1561            } else {
1562                @StringRes int res;
1563                String firstDenied = getFirstDenied(grantResults, permissions);
1564                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1565                    res = R.string.no_microphone_permission;
1566                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1567                    res = R.string.no_camera_permission;
1568                } else {
1569                    res = R.string.no_storage_permission;
1570                }
1571                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1572            }
1573        }
1574        if (writeGranted(grantResults, permissions)) {
1575            if (activity != null && activity.xmppConnectionService != null) {
1576                activity.xmppConnectionService.restartFileObserver();
1577            }
1578            refresh();
1579        }
1580    }
1581
1582    public void startDownloadable(Message message) {
1583        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1584            this.mPendingDownloadableMessage = message;
1585            return;
1586        }
1587        Transferable transferable = message.getTransferable();
1588        if (transferable != null) {
1589            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1590                createNewConnection(message);
1591                return;
1592            }
1593            if (!transferable.start()) {
1594                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1595                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1596            }
1597        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1598            createNewConnection(message);
1599        } else {
1600            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1601        }
1602    }
1603
1604    private void createNewConnection(final Message message) {
1605        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1606            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1607            return;
1608        }
1609        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1610    }
1611
1612    @SuppressLint("InflateParams")
1613    protected void clearHistoryDialog(final Conversation conversation) {
1614        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1615        builder.setTitle(getString(R.string.clear_conversation_history));
1616        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1617        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1618        builder.setView(dialogView);
1619        builder.setNegativeButton(getString(R.string.cancel), null);
1620        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1621            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1622            if (endConversationCheckBox.isChecked()) {
1623                this.activity.xmppConnectionService.archiveConversation(conversation);
1624                this.activity.onConversationArchived(conversation);
1625            } else {
1626                activity.onConversationsListItemUpdated();
1627                refresh();
1628            }
1629        });
1630        builder.create().show();
1631    }
1632
1633    protected void muteConversationDialog(final Conversation conversation) {
1634        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1635        builder.setTitle(R.string.disable_notifications);
1636        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1637        final CharSequence[] labels = new CharSequence[durations.length];
1638        for (int i = 0; i < durations.length; ++i) {
1639            if (durations[i] == -1) {
1640                labels[i] = getString(R.string.until_further_notice);
1641            } else {
1642                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1643            }
1644        }
1645        builder.setItems(labels, (dialog, which) -> {
1646            final long till;
1647            if (durations[which] == -1) {
1648                till = Long.MAX_VALUE;
1649            } else {
1650                till = System.currentTimeMillis() + (durations[which] * 1000);
1651            }
1652            conversation.setMutedTill(till);
1653            activity.xmppConnectionService.updateConversation(conversation);
1654            activity.onConversationsListItemUpdated();
1655            refresh();
1656            getActivity().invalidateOptionsMenu();
1657        });
1658        builder.create().show();
1659    }
1660
1661    private boolean hasPermissions(int requestCode, String... permissions) {
1662        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1663            final List<String> missingPermissions = new ArrayList<>();
1664            for (String permission : permissions) {
1665                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1666                    continue;
1667                }
1668                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1669                    missingPermissions.add(permission);
1670                }
1671            }
1672            if (missingPermissions.size() == 0) {
1673                return true;
1674            } else {
1675                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1676                return false;
1677            }
1678        } else {
1679            return true;
1680        }
1681    }
1682
1683    public void unmuteConversation(final Conversation conversation) {
1684        conversation.setMutedTill(0);
1685        this.activity.xmppConnectionService.updateConversation(conversation);
1686        this.activity.onConversationsListItemUpdated();
1687        refresh();
1688        getActivity().invalidateOptionsMenu();
1689    }
1690
1691
1692    protected void invokeAttachFileIntent(final int attachmentChoice) {
1693        Intent intent = new Intent();
1694        boolean chooser = false;
1695        switch (attachmentChoice) {
1696            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1697                intent.setAction(Intent.ACTION_GET_CONTENT);
1698                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1699                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1700                }
1701                intent.setType("image/*");
1702                chooser = true;
1703                break;
1704            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1705                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1706                break;
1707            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1708                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1709                pendingTakePhotoUri.push(uri);
1710                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1711                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1712                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1713                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1714                break;
1715            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1716                chooser = true;
1717                intent.setType("*/*");
1718                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1719                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1720                }
1721                intent.addCategory(Intent.CATEGORY_OPENABLE);
1722                intent.setAction(Intent.ACTION_GET_CONTENT);
1723                break;
1724            case ATTACHMENT_CHOICE_RECORD_VOICE:
1725                intent = new Intent(getActivity(), RecordingActivity.class);
1726                break;
1727            case ATTACHMENT_CHOICE_LOCATION:
1728                intent = GeoHelper.getFetchIntent(activity);
1729                break;
1730        }
1731        final Context context = getActivity();
1732        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1733            if (chooser) {
1734                startActivityForResult(
1735                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1736                        attachmentChoice);
1737            } else {
1738                startActivityForResult(intent, attachmentChoice);
1739            }
1740        }
1741    }
1742
1743    @Override
1744    public void onResume() {
1745        super.onResume();
1746        binding.messagesView.post(this::fireReadEvent);
1747    }
1748
1749    private void fireReadEvent() {
1750        if (activity != null && this.conversation != null) {
1751            String uuid = getLastVisibleMessageUuid();
1752            if (uuid != null) {
1753                activity.onConversationRead(this.conversation, uuid);
1754            }
1755        }
1756    }
1757
1758    private String getLastVisibleMessageUuid() {
1759        if (binding == null) {
1760            return null;
1761        }
1762        synchronized (this.messageList) {
1763            int pos = binding.messagesView.getLastVisiblePosition();
1764            if (pos >= 0) {
1765                Message message = null;
1766                for (int i = pos; i >= 0; --i) {
1767                    try {
1768                        message = (Message) binding.messagesView.getItemAtPosition(i);
1769                    } catch (IndexOutOfBoundsException e) {
1770                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1771                        continue;
1772                    }
1773                    if (message.getType() != Message.TYPE_STATUS) {
1774                        break;
1775                    }
1776                }
1777                if (message != null) {
1778                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1779                        message = message.next();
1780                    }
1781                    return message.getUuid();
1782                }
1783            }
1784        }
1785        return null;
1786    }
1787
1788    private void openWith(final Message message) {
1789        if (message.isGeoUri()) {
1790            GeoHelper.view(getActivity(), message);
1791        } else {
1792            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1793            ViewUtil.view(activity, file);
1794        }
1795    }
1796
1797    private void showErrorMessage(final Message message) {
1798        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1799        builder.setTitle(R.string.error_message);
1800        final String errorMessage = message.getErrorMessage();
1801        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1802        final String displayError;
1803        if (errorMessageParts.length == 2) {
1804            displayError = errorMessageParts[1];
1805        } else {
1806            displayError = errorMessage;
1807        }
1808        builder.setMessage(displayError);
1809        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1810            activity.copyTextToClipboard(displayError, R.string.error_message);
1811            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1812        });
1813        builder.setPositiveButton(R.string.confirm, null);
1814        builder.create().show();
1815    }
1816
1817
1818    private void deleteFile(final Message message) {
1819        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1820        builder.setNegativeButton(R.string.cancel, null);
1821        builder.setTitle(R.string.delete_file_dialog);
1822        builder.setMessage(R.string.delete_file_dialog_msg);
1823        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1824            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1825                message.setDeleted(true);
1826                activity.xmppConnectionService.evictPreview(message.getUuid());
1827                activity.xmppConnectionService.updateMessage(message, false);
1828                activity.onConversationsListItemUpdated();
1829                refresh();
1830            }
1831        });
1832        builder.create().show();
1833
1834    }
1835
1836    private void resendMessage(final Message message) {
1837        if (message.isFileOrImage()) {
1838            if (!(message.getConversation() instanceof Conversation)) {
1839                return;
1840            }
1841            final Conversation conversation = (Conversation) message.getConversation();
1842            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1843            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1844                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1845                if (!message.hasFileOnRemoteHost()
1846                        && xmppConnection != null
1847                        && conversation.getMode() == Conversational.MODE_SINGLE
1848                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1849                    activity.selectPresence(conversation, () -> {
1850                        message.setCounterpart(conversation.getNextCounterpart());
1851                        activity.xmppConnectionService.resendFailedMessages(message);
1852                        new Handler().post(() -> {
1853                            int size = messageList.size();
1854                            this.binding.messagesView.setSelection(size - 1);
1855                        });
1856                    });
1857                    return;
1858                }
1859            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1860                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1861                return;
1862            } else {
1863                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1864                message.setDeleted(true);
1865                activity.xmppConnectionService.updateMessage(message, false);
1866                activity.onConversationsListItemUpdated();
1867                refresh();
1868                return;
1869            }
1870        }
1871        activity.xmppConnectionService.resendFailedMessages(message);
1872        new Handler().post(() -> {
1873            int size = messageList.size();
1874            this.binding.messagesView.setSelection(size - 1);
1875        });
1876    }
1877
1878    private void cancelTransmission(Message message) {
1879        Transferable transferable = message.getTransferable();
1880        if (transferable != null) {
1881            transferable.cancel();
1882        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1883            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1884        }
1885    }
1886
1887    private void retryDecryption(Message message) {
1888        message.setEncryption(Message.ENCRYPTION_PGP);
1889        activity.onConversationsListItemUpdated();
1890        refresh();
1891        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1892    }
1893
1894    public void privateMessageWith(final Jid counterpart) {
1895        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1896            activity.xmppConnectionService.sendChatState(conversation);
1897        }
1898        this.binding.textinput.setText("");
1899        this.conversation.setNextCounterpart(counterpart);
1900        updateChatMsgHint();
1901        updateSendButton();
1902        updateEditablity();
1903    }
1904
1905    private void correctMessage(Message message) {
1906        while (message.mergeable(message.next())) {
1907            message = message.next();
1908        }
1909        this.conversation.setCorrectingMessage(message);
1910        final Editable editable = binding.textinput.getText();
1911        this.conversation.setDraftMessage(editable.toString());
1912        this.binding.textinput.setText("");
1913        this.binding.textinput.append(message.getBody());
1914
1915    }
1916
1917    private void highlightInConference(String nick) {
1918        final Editable editable = this.binding.textinput.getText();
1919        String oldString = editable.toString().trim();
1920        final int pos = this.binding.textinput.getSelectionStart();
1921        if (oldString.isEmpty() || pos == 0) {
1922            editable.insert(0, nick + ": ");
1923        } else {
1924            final char before = editable.charAt(pos - 1);
1925            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1926            if (before == '\n') {
1927                editable.insert(pos, nick + ": ");
1928            } else {
1929                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1930                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1931                        editable.insert(pos - 2, ", " + nick);
1932                        return;
1933                    }
1934                }
1935                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1936                if (Character.isWhitespace(after)) {
1937                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1938                }
1939            }
1940        }
1941    }
1942
1943    @Override
1944    public void startActivityForResult(Intent intent, int requestCode) {
1945        final Activity activity = getActivity();
1946        if (activity instanceof ConversationsActivity) {
1947            ((ConversationsActivity) activity).clearPendingViewIntent();
1948        }
1949        super.startActivityForResult(intent, requestCode);
1950    }
1951
1952    @Override
1953    public void onSaveInstanceState(Bundle outState) {
1954        super.onSaveInstanceState(outState);
1955        if (conversation != null) {
1956            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1957            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1958            final Uri uri = pendingTakePhotoUri.peek();
1959            if (uri != null) {
1960                outState.putString(STATE_PHOTO_URI, uri.toString());
1961            }
1962            final ScrollState scrollState = getScrollPosition();
1963            if (scrollState != null) {
1964                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1965            }
1966            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1967            if (attachments.size() > 0) {
1968                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1969            }
1970        }
1971    }
1972
1973    @Override
1974    public void onActivityCreated(Bundle savedInstanceState) {
1975        super.onActivityCreated(savedInstanceState);
1976        if (savedInstanceState == null) {
1977            return;
1978        }
1979        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1980        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1981        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1982        if (uuid != null) {
1983            QuickLoader.set(uuid);
1984            this.pendingConversationsUuid.push(uuid);
1985            if (attachments != null && attachments.size() > 0) {
1986                this.pendingMediaPreviews.push(attachments);
1987            }
1988            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1989            if (takePhotoUri != null) {
1990                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1991            }
1992            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1993        }
1994    }
1995
1996    @Override
1997    public void onStart() {
1998        super.onStart();
1999        if (this.reInitRequiredOnStart && this.conversation != null) {
2000            final Bundle extras = pendingExtras.pop();
2001            reInit(this.conversation, extras != null);
2002            if (extras != null) {
2003                processExtras(extras);
2004            }
2005        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
2006            final String uuid = pendingConversationsUuid.pop();
2007            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
2008            if (uuid != null) {
2009                findAndReInitByUuidOrArchive(uuid);
2010            }
2011        }
2012    }
2013
2014    @Override
2015    public void onStop() {
2016        super.onStop();
2017        final Activity activity = getActivity();
2018        messageListAdapter.unregisterListenerInAudioPlayer();
2019        if (activity == null || !activity.isChangingConfigurations()) {
2020            hideSoftKeyboard(activity);
2021            messageListAdapter.stopAudioPlayer();
2022        }
2023        if (this.conversation != null) {
2024            final String msg = this.binding.textinput.getText().toString();
2025            storeNextMessage(msg);
2026            updateChatState(this.conversation, msg);
2027            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2028        }
2029        this.reInitRequiredOnStart = true;
2030    }
2031
2032    private void updateChatState(final Conversation conversation, final String msg) {
2033        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2034        Account.State status = conversation.getAccount().getStatus();
2035        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2036            activity.xmppConnectionService.sendChatState(conversation);
2037        }
2038    }
2039
2040    private void saveMessageDraftStopAudioPlayer() {
2041        final Conversation previousConversation = this.conversation;
2042        if (this.activity == null || this.binding == null || previousConversation == null) {
2043            return;
2044        }
2045        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2046        final String msg = this.binding.textinput.getText().toString();
2047        storeNextMessage(msg);
2048        updateChatState(this.conversation, msg);
2049        messageListAdapter.stopAudioPlayer();
2050        mediaPreviewAdapter.clearPreviews();
2051        toggleInputMethod();
2052    }
2053
2054    public void reInit(final Conversation conversation, final Bundle extras) {
2055        QuickLoader.set(conversation.getUuid());
2056        final boolean changedConversation = this.conversation != conversation;
2057        if (changedConversation) {
2058            this.saveMessageDraftStopAudioPlayer();
2059        }
2060        this.clearPending();
2061        if (this.reInit(conversation, extras != null)) {
2062            if (extras != null) {
2063                processExtras(extras);
2064            }
2065            this.reInitRequiredOnStart = false;
2066        } else {
2067            this.reInitRequiredOnStart = true;
2068            pendingExtras.push(extras);
2069        }
2070        resetUnreadMessagesCount();
2071    }
2072
2073    private void reInit(Conversation conversation) {
2074        reInit(conversation, false);
2075    }
2076
2077    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2078        if (conversation == null) {
2079            return false;
2080        }
2081        this.conversation = conversation;
2082        //once we set the conversation all is good and it will automatically do the right thing in onStart()
2083        if (this.activity == null || this.binding == null) {
2084            return false;
2085        }
2086
2087        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2088            activity.onConversationArchived(this.conversation);
2089            return false;
2090        }
2091
2092        stopScrolling();
2093        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
2094
2095        if (this.conversation.isRead() && hasExtras) {
2096            Log.d(Config.LOGTAG, "trimming conversation");
2097            this.conversation.trim();
2098        }
2099
2100        setupIme();
2101
2102        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
2103
2104        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
2105        this.binding.textinput.setKeyboardListener(null);
2106        this.binding.textinput.setText("");
2107        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2108        if (participating) {
2109            this.binding.textinput.append(this.conversation.getNextMessage());
2110        }
2111        this.binding.textinput.setKeyboardListener(this);
2112        messageListAdapter.updatePreferences();
2113        refresh(false);
2114        this.conversation.messagesLoaded.set(true);
2115        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
2116
2117        if (hasExtras || scrolledToBottomAndNoPending) {
2118            resetUnreadMessagesCount();
2119            synchronized (this.messageList) {
2120                Log.d(Config.LOGTAG, "jump to first unread message");
2121                final Message first = conversation.getFirstUnreadMessage();
2122                final int bottom = Math.max(0, this.messageList.size() - 1);
2123                final int pos;
2124                final boolean jumpToBottom;
2125                if (first == null) {
2126                    pos = bottom;
2127                    jumpToBottom = true;
2128                } else {
2129                    int i = getIndexOf(first.getUuid(), this.messageList);
2130                    pos = i < 0 ? bottom : i;
2131                    jumpToBottom = false;
2132                }
2133                setSelection(pos, jumpToBottom);
2134            }
2135        }
2136
2137
2138        this.binding.messagesView.post(this::fireReadEvent);
2139        //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
2140        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2141        return true;
2142    }
2143
2144    private void resetUnreadMessagesCount() {
2145        lastMessageUuid = null;
2146        hideUnreadMessagesCount();
2147    }
2148
2149    private void hideUnreadMessagesCount() {
2150        if (this.binding == null) {
2151            return;
2152        }
2153        this.binding.scrollToBottomButton.setEnabled(false);
2154        this.binding.scrollToBottomButton.hide();
2155        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2156    }
2157
2158    private void setSelection(int pos, boolean jumpToBottom) {
2159        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2160        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2161        this.binding.messagesView.post(this::fireReadEvent);
2162    }
2163
2164
2165    private boolean scrolledToBottom() {
2166        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2167    }
2168
2169    private void processExtras(final Bundle extras) {
2170        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2171        final String text = extras.getString(Intent.EXTRA_TEXT);
2172        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2173        final String postInitAction = extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2174        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2175        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2176        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2177        final List<Uri> uris = extractUris(extras);
2178        if (uris != null && uris.size() > 0) {
2179            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2180                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2181            } else {
2182                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2183                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2184            }
2185            toggleInputMethod();
2186            return;
2187        }
2188        if (nick != null) {
2189            if (pm) {
2190                Jid jid = conversation.getJid();
2191                try {
2192                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2193                    privateMessageWith(next);
2194                } catch (final IllegalArgumentException ignored) {
2195                    //do nothing
2196                }
2197            } else {
2198                final MucOptions mucOptions = conversation.getMucOptions();
2199                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2200                    highlightInConference(nick);
2201                }
2202            }
2203        } else {
2204            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2205                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2206                toggleInputMethod();
2207                return;
2208            } else if (text != null && asQuote) {
2209                quoteText(text);
2210            } else {
2211                appendText(text, doNotAppend);
2212            }
2213        }
2214        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2215            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2216            return;
2217        }
2218        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2219        if (message != null) {
2220            startDownloadable(message);
2221        }
2222    }
2223
2224    private List<Uri> extractUris(final Bundle extras) {
2225        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2226        if (uris != null) {
2227            return uris;
2228        }
2229        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2230        if (uri != null) {
2231            return Collections.singletonList(uri);
2232        } else {
2233            return null;
2234        }
2235    }
2236
2237    private List<Uri> cleanUris(final List<Uri> uris) {
2238        Iterator<Uri> iterator = uris.iterator();
2239        while (iterator.hasNext()) {
2240            final Uri uri = iterator.next();
2241            if (FileBackend.weOwnFile(getActivity(), uri)) {
2242                iterator.remove();
2243                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2244            }
2245        }
2246        return uris;
2247    }
2248
2249    private boolean showBlockSubmenu(View view) {
2250        final Jid jid = conversation.getJid();
2251        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2252        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2253        popupMenu.inflate(R.menu.block);
2254        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2255        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2256        popupMenu.setOnMenuItemClickListener(menuItem -> {
2257            Blockable blockable;
2258            switch (menuItem.getItemId()) {
2259                case R.id.reject:
2260                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2261                    updateSnackBar(conversation);
2262                    return true;
2263                case R.id.block_domain:
2264                    blockable = conversation.getAccount().getRoster().getContact(jid.getDomain());
2265                    break;
2266                default:
2267                    blockable = conversation;
2268            }
2269            BlockContactDialog.show(activity, blockable);
2270            return true;
2271        });
2272        popupMenu.show();
2273        return true;
2274    }
2275
2276    private void updateSnackBar(final Conversation conversation) {
2277        final Account account = conversation.getAccount();
2278        final XmppConnection connection = account.getXmppConnection();
2279        final int mode = conversation.getMode();
2280        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2281        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2282            return;
2283        }
2284        if (account.getStatus() == Account.State.DISABLED) {
2285            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2286        } else if (conversation.isBlocked()) {
2287            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2288        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2289            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2290        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2291            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2292        } else if (mode == Conversation.MODE_MULTI
2293                && !conversation.getMucOptions().online()
2294                && account.getStatus() == Account.State.ONLINE) {
2295            switch (conversation.getMucOptions().getError()) {
2296                case NICK_IN_USE:
2297                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2298                    break;
2299                case NO_RESPONSE:
2300                    showSnackbar(R.string.joining_conference, 0, null);
2301                    break;
2302                case SERVER_NOT_FOUND:
2303                    if (conversation.receivedMessagesCount() > 0) {
2304                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2305                    } else {
2306                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2307                    }
2308                    break;
2309                case REMOTE_SERVER_TIMEOUT:
2310                    if (conversation.receivedMessagesCount() > 0) {
2311                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2312                    } else {
2313                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2314                    }
2315                    break;
2316                case PASSWORD_REQUIRED:
2317                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2318                    break;
2319                case BANNED:
2320                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2321                    break;
2322                case MEMBERS_ONLY:
2323                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2324                    break;
2325                case RESOURCE_CONSTRAINT:
2326                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2327                    break;
2328                case KICKED:
2329                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2330                    break;
2331                case UNKNOWN:
2332                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2333                    break;
2334                case INVALID_NICK:
2335                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2336                case SHUTDOWN:
2337                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2338                    break;
2339                case DESTROYED:
2340                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2341                    break;
2342                case NON_ANONYMOUS:
2343                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2344                    break;
2345                default:
2346                    hideSnackbar();
2347                    break;
2348            }
2349        } else if (account.hasPendingPgpIntent(conversation)) {
2350            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2351        } else if (connection != null
2352                && connection.getFeatures().blocking()
2353                && conversation.countMessages() != 0
2354                && !conversation.isBlocked()
2355                && conversation.isWithStranger()) {
2356            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2357        } else {
2358            hideSnackbar();
2359        }
2360    }
2361
2362    @Override
2363    public void refresh() {
2364        if (this.binding == null) {
2365            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2366            return;
2367        }
2368        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2369            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2370                activity.onConversationArchived(this.conversation);
2371                return;
2372            }
2373        }
2374        this.refresh(true);
2375    }
2376
2377    private void refresh(boolean notifyConversationRead) {
2378        synchronized (this.messageList) {
2379            if (this.conversation != null) {
2380                conversation.populateWithMessages(this.messageList);
2381                updateSnackBar(conversation);
2382                updateStatusMessages();
2383                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2384                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2385                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2386                }
2387                this.messageListAdapter.notifyDataSetChanged();
2388                updateChatMsgHint();
2389                if (notifyConversationRead && activity != null) {
2390                    binding.messagesView.post(this::fireReadEvent);
2391                }
2392                updateSendButton();
2393                updateEditablity();
2394                activity.invalidateOptionsMenu();
2395            }
2396        }
2397    }
2398
2399    protected void messageSent() {
2400        mSendingPgpMessage.set(false);
2401        this.binding.textinput.setText("");
2402        if (conversation.setCorrectingMessage(null)) {
2403            this.binding.textinput.append(conversation.getDraftMessage());
2404            conversation.setDraftMessage(null);
2405        }
2406        storeNextMessage();
2407        updateChatMsgHint();
2408        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2409        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2410        if (prefScrollToBottom || scrolledToBottom()) {
2411            new Handler().post(() -> {
2412                int size = messageList.size();
2413                this.binding.messagesView.setSelection(size - 1);
2414            });
2415        }
2416    }
2417
2418    private boolean storeNextMessage() {
2419        return storeNextMessage(this.binding.textinput.getText().toString());
2420    }
2421
2422    private boolean storeNextMessage(String msg) {
2423        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2424        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2425            this.activity.xmppConnectionService.updateConversation(this.conversation);
2426            return true;
2427        }
2428        return false;
2429    }
2430
2431    public void doneSendingPgpMessage() {
2432        mSendingPgpMessage.set(false);
2433    }
2434
2435    public long getMaxHttpUploadSize(Conversation conversation) {
2436        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2437        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2438    }
2439
2440    private void updateEditablity() {
2441        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2442        this.binding.textinput.setFocusable(canWrite);
2443        this.binding.textinput.setFocusableInTouchMode(canWrite);
2444        this.binding.textSendButton.setEnabled(canWrite);
2445        this.binding.textinput.setCursorVisible(canWrite);
2446        this.binding.textinput.setEnabled(canWrite);
2447    }
2448
2449    public void updateSendButton() {
2450        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2451        final Conversation c = this.conversation;
2452        final Presence.Status status;
2453        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2454        final SendButtonAction action;
2455        if (hasAttachments) {
2456            action = SendButtonAction.TEXT;
2457        } else {
2458            action = SendButtonTool.getAction(getActivity(), c, text);
2459        }
2460        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2461            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2462                status = Presence.Status.OFFLINE;
2463            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2464                status = c.getContact().getShownStatus();
2465            } else {
2466                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2467            }
2468        } else {
2469            status = Presence.Status.OFFLINE;
2470        }
2471        this.binding.textSendButton.setTag(action);
2472        final Activity activity = getActivity();
2473        if (activity != null) {
2474            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2475        }
2476    }
2477
2478    protected void updateStatusMessages() {
2479        DateSeparator.addAll(this.messageList);
2480        if (showLoadMoreMessages(conversation)) {
2481            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2482        }
2483        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2484            ChatState state = conversation.getIncomingChatState();
2485            if (state == ChatState.COMPOSING) {
2486                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2487            } else if (state == ChatState.PAUSED) {
2488                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2489            } else {
2490                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2491                    final Message message = this.messageList.get(i);
2492                    if (message.getType() != Message.TYPE_STATUS) {
2493                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2494                            return;
2495                        } else {
2496                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2497                                this.messageList.add(i + 1,
2498                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2499                                return;
2500                            }
2501                        }
2502                    }
2503                }
2504            }
2505        } else {
2506            final MucOptions mucOptions = conversation.getMucOptions();
2507            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2508            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2509            ChatState state = ChatState.COMPOSING;
2510            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2511            if (users.size() == 0) {
2512                state = ChatState.PAUSED;
2513                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2514            }
2515            if (mucOptions.isPrivateAndNonAnonymous()) {
2516                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2517                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2518                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2519                    for (ReadByMarker marker : markersForMessage) {
2520                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2521                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2522                            MucOptions.User user = mucOptions.findUser(marker);
2523                            if (user != null && !users.contains(user)) {
2524                                shownMarkers.add(user);
2525                            }
2526                        }
2527                    }
2528                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2529                    final Message statusMessage;
2530                    final int size = shownMarkers.size();
2531                    if (size > 1) {
2532                        final String body;
2533                        if (size <= 4) {
2534                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2535                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2536                            body = getString(R.string.everyone_has_read_up_to_this_point);
2537                        } else {
2538                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2539                        }
2540                        statusMessage = Message.createStatusMessage(conversation, body);
2541                        statusMessage.setCounterparts(shownMarkers);
2542                    } else if (size == 1) {
2543                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2544                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2545                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2546                    } else {
2547                        statusMessage = null;
2548                    }
2549                    if (statusMessage != null) {
2550                        this.messageList.add(i + 1, statusMessage);
2551                    }
2552                    addedMarkers.add(markerForSender);
2553                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2554                        break;
2555                    }
2556                }
2557            }
2558            if (users.size() > 0) {
2559                Message statusMessage;
2560                if (users.size() == 1) {
2561                    MucOptions.User user = users.get(0);
2562                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2563                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2564                    statusMessage.setTrueCounterpart(user.getRealJid());
2565                    statusMessage.setCounterpart(user.getFullJid());
2566                } else {
2567                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2568                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2569                    statusMessage.setCounterparts(users);
2570                }
2571                this.messageList.add(statusMessage);
2572            }
2573
2574        }
2575    }
2576
2577    private void stopScrolling() {
2578        long now = SystemClock.uptimeMillis();
2579        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2580        binding.messagesView.dispatchTouchEvent(cancel);
2581    }
2582
2583    private boolean showLoadMoreMessages(final Conversation c) {
2584        if (activity == null || activity.xmppConnectionService == null) {
2585            return false;
2586        }
2587        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2588        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2589        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2590    }
2591
2592    private boolean hasMamSupport(final Conversation c) {
2593        if (c.getMode() == Conversation.MODE_SINGLE) {
2594            final XmppConnection connection = c.getAccount().getXmppConnection();
2595            return connection != null && connection.getFeatures().mam();
2596        } else {
2597            return c.getMucOptions().mamSupport();
2598        }
2599    }
2600
2601    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2602        showSnackbar(message, action, clickListener, null);
2603    }
2604
2605    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2606        this.binding.snackbar.setVisibility(View.VISIBLE);
2607        this.binding.snackbar.setOnClickListener(null);
2608        this.binding.snackbarMessage.setText(message);
2609        this.binding.snackbarMessage.setOnClickListener(null);
2610        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2611        if (action != 0) {
2612            this.binding.snackbarAction.setText(action);
2613        }
2614        this.binding.snackbarAction.setOnClickListener(clickListener);
2615        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2616    }
2617
2618    protected void hideSnackbar() {
2619        this.binding.snackbar.setVisibility(View.GONE);
2620    }
2621
2622    protected void sendMessage(Message message) {
2623        activity.xmppConnectionService.sendMessage(message);
2624        messageSent();
2625    }
2626
2627    protected void sendPgpMessage(final Message message) {
2628        final XmppConnectionService xmppService = activity.xmppConnectionService;
2629        final Contact contact = message.getConversation().getContact();
2630        if (!activity.hasPgp()) {
2631            activity.showInstallPgpDialog();
2632            return;
2633        }
2634        if (conversation.getAccount().getPgpSignature() == null) {
2635            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2636            return;
2637        }
2638        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2639            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2640        }
2641        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2642            if (contact.getPgpKeyId() != 0) {
2643                xmppService.getPgpEngine().hasKey(contact,
2644                        new UiCallback<Contact>() {
2645
2646                            @Override
2647                            public void userInputRequired(PendingIntent pi, Contact contact) {
2648                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2649                            }
2650
2651                            @Override
2652                            public void success(Contact contact) {
2653                                encryptTextMessage(message);
2654                            }
2655
2656                            @Override
2657                            public void error(int error, Contact contact) {
2658                                activity.runOnUiThread(() -> Toast.makeText(activity,
2659                                        R.string.unable_to_connect_to_keychain,
2660                                        Toast.LENGTH_SHORT
2661                                ).show());
2662                                mSendingPgpMessage.set(false);
2663                            }
2664                        });
2665
2666            } else {
2667                showNoPGPKeyDialog(false, (dialog, which) -> {
2668                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2669                    xmppService.updateConversation(conversation);
2670                    message.setEncryption(Message.ENCRYPTION_NONE);
2671                    xmppService.sendMessage(message);
2672                    messageSent();
2673                });
2674            }
2675        } else {
2676            if (conversation.getMucOptions().pgpKeysInUse()) {
2677                if (!conversation.getMucOptions().everybodyHasKeys()) {
2678                    Toast warning = Toast
2679                            .makeText(getActivity(),
2680                                    R.string.missing_public_keys,
2681                                    Toast.LENGTH_LONG);
2682                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2683                    warning.show();
2684                }
2685                encryptTextMessage(message);
2686            } else {
2687                showNoPGPKeyDialog(true, (dialog, which) -> {
2688                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2689                    message.setEncryption(Message.ENCRYPTION_NONE);
2690                    xmppService.updateConversation(conversation);
2691                    xmppService.sendMessage(message);
2692                    messageSent();
2693                });
2694            }
2695        }
2696    }
2697
2698    public void encryptTextMessage(Message message) {
2699        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2700                new UiCallback<Message>() {
2701
2702                    @Override
2703                    public void userInputRequired(PendingIntent pi, Message message) {
2704                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2705                    }
2706
2707                    @Override
2708                    public void success(Message message) {
2709                        //TODO the following two call can be made before the callback
2710                        getActivity().runOnUiThread(() -> messageSent());
2711                    }
2712
2713                    @Override
2714                    public void error(final int error, Message message) {
2715                        getActivity().runOnUiThread(() -> {
2716                            doneSendingPgpMessage();
2717                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2718                        });
2719
2720                    }
2721                });
2722    }
2723
2724    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2725        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2726        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2727        if (plural) {
2728            builder.setTitle(getString(R.string.no_pgp_keys));
2729            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2730        } else {
2731            builder.setTitle(getString(R.string.no_pgp_key));
2732            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2733        }
2734        builder.setNegativeButton(getString(R.string.cancel), null);
2735        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2736        builder.create().show();
2737    }
2738
2739    public void appendText(String text, final boolean doNotAppend) {
2740        if (text == null) {
2741            return;
2742        }
2743        final Editable editable = this.binding.textinput.getText();
2744        String previous = editable == null ? "" : editable.toString();
2745        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2746            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2747            return;
2748        }
2749        if (UIHelper.isLastLineQuote(previous)) {
2750            text = '\n' + text;
2751        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2752            text = " " + text;
2753        }
2754        this.binding.textinput.append(text);
2755    }
2756
2757    @Override
2758    public boolean onEnterPressed(final boolean isCtrlPressed) {
2759        if (isCtrlPressed || enterIsSend()) {
2760            sendMessage();
2761            return true;
2762        }
2763        return false;
2764    }
2765
2766    private boolean enterIsSend() {
2767        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2768        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2769    }
2770
2771    public boolean onArrowUpCtrlPressed() {
2772        final Message lastEditableMessage = conversation == null ? null : conversation.getLastEditableMessage();
2773        if (lastEditableMessage != null) {
2774            correctMessage(lastEditableMessage);
2775            return true;
2776        } else {
2777            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG).show();
2778            return false;
2779        }
2780    }
2781
2782    @Override
2783    public void onTypingStarted() {
2784        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2785        if (service == null) {
2786            return;
2787        }
2788        final Account.State status = conversation.getAccount().getStatus();
2789        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2790            service.sendChatState(conversation);
2791        }
2792        runOnUiThread(this::updateSendButton);
2793    }
2794
2795    @Override
2796    public void onTypingStopped() {
2797        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2798        if (service == null) {
2799            return;
2800        }
2801        final Account.State status = conversation.getAccount().getStatus();
2802        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2803            service.sendChatState(conversation);
2804        }
2805    }
2806
2807    @Override
2808    public void onTextDeleted() {
2809        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2810        if (service == null) {
2811            return;
2812        }
2813        final Account.State status = conversation.getAccount().getStatus();
2814        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2815            service.sendChatState(conversation);
2816        }
2817        if (storeNextMessage()) {
2818            runOnUiThread(() -> {
2819                if (activity == null) {
2820                    return;
2821                }
2822                activity.onConversationsListItemUpdated();
2823            });
2824        }
2825        runOnUiThread(this::updateSendButton);
2826    }
2827
2828    @Override
2829    public void onTextChanged() {
2830        if (conversation != null && conversation.getCorrectingMessage() != null) {
2831            runOnUiThread(this::updateSendButton);
2832        }
2833    }
2834
2835    @Override
2836    public boolean onTabPressed(boolean repeated) {
2837        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2838            return false;
2839        }
2840        if (repeated) {
2841            completionIndex++;
2842        } else {
2843            lastCompletionLength = 0;
2844            completionIndex = 0;
2845            final String content = this.binding.textinput.getText().toString();
2846            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2847            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2848            firstWord = start == 0;
2849            incomplete = content.substring(start, lastCompletionCursor);
2850        }
2851        List<String> completions = new ArrayList<>();
2852        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2853            String name = user.getName();
2854            if (name != null && name.startsWith(incomplete)) {
2855                completions.add(name + (firstWord ? ": " : " "));
2856            }
2857        }
2858        Collections.sort(completions);
2859        if (completions.size() > completionIndex) {
2860            String completion = completions.get(completionIndex).substring(incomplete.length());
2861            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2862            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2863            lastCompletionLength = completion.length();
2864        } else {
2865            completionIndex = -1;
2866            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2867            lastCompletionLength = 0;
2868        }
2869        return true;
2870    }
2871
2872    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2873        try {
2874            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2875        } catch (final SendIntentException ignored) {
2876        }
2877    }
2878
2879    @Override
2880    public void onBackendConnected() {
2881        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2882        String uuid = pendingConversationsUuid.pop();
2883        if (uuid != null) {
2884            if (!findAndReInitByUuidOrArchive(uuid)) {
2885                return;
2886            }
2887        } else {
2888            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2889                clearPending();
2890                activity.onConversationArchived(conversation);
2891                return;
2892            }
2893        }
2894        ActivityResult activityResult = postponedActivityResult.pop();
2895        if (activityResult != null) {
2896            handleActivityResult(activityResult);
2897        }
2898        clearPending();
2899    }
2900
2901    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2902        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2903        if (conversation == null) {
2904            clearPending();
2905            activity.onConversationArchived(null);
2906            return false;
2907        }
2908        reInit(conversation);
2909        ScrollState scrollState = pendingScrollState.pop();
2910        String lastMessageUuid = pendingLastMessageUuid.pop();
2911        List<Attachment> attachments = pendingMediaPreviews.pop();
2912        if (scrollState != null) {
2913            setScrollPosition(scrollState, lastMessageUuid);
2914        }
2915        if (attachments != null && attachments.size() > 0) {
2916            Log.d(Config.LOGTAG, "had attachments on restore");
2917            mediaPreviewAdapter.addMediaPreviews(attachments);
2918            toggleInputMethod();
2919        }
2920        return true;
2921    }
2922
2923    private void clearPending() {
2924        if (postponedActivityResult.clear()) {
2925            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2926            if (pendingTakePhotoUri.clear()) {
2927                Log.e(Config.LOGTAG, "cleared pending photo uri");
2928            }
2929        }
2930        if (pendingScrollState.clear()) {
2931            Log.e(Config.LOGTAG, "cleared scroll state");
2932        }
2933        if (pendingConversationsUuid.clear()) {
2934            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2935        }
2936        if (pendingMediaPreviews.clear()) {
2937            Log.e(Config.LOGTAG, "cleared pending media previews");
2938        }
2939    }
2940
2941    public Conversation getConversation() {
2942        return conversation;
2943    }
2944
2945    @Override
2946    public void onContactPictureLongClicked(View v, final Message message) {
2947        final String fingerprint;
2948        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2949            fingerprint = "pgp";
2950        } else {
2951            fingerprint = message.getFingerprint();
2952        }
2953        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2954        final Contact contact = message.getContact();
2955        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2956            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2957                final Jid cp = message.getCounterpart();
2958                if (cp == null || cp.isBareJid()) {
2959                    return;
2960                }
2961                final Jid tcp = message.getTrueCounterpart();
2962                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2963                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2964                popupMenu.inflate(R.menu.muc_details_context);
2965                final Menu menu = popupMenu.getMenu();
2966                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2967                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2968            } else {
2969                popupMenu.inflate(R.menu.one_on_one_context);
2970                popupMenu.setOnMenuItemClickListener(item -> {
2971                    switch (item.getItemId()) {
2972                        case R.id.action_contact_details:
2973                            activity.switchToContactDetails(message.getContact(), fingerprint);
2974                            break;
2975                        case R.id.action_show_qr_code:
2976                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2977                            break;
2978                    }
2979                    return true;
2980                });
2981            }
2982        } else {
2983            popupMenu.inflate(R.menu.account_context);
2984            final Menu menu = popupMenu.getMenu();
2985            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2986            popupMenu.setOnMenuItemClickListener(item -> {
2987                switch (item.getItemId()) {
2988                    case R.id.action_show_qr_code:
2989                        activity.showQrCode(conversation.getAccount().getShareableUri());
2990                        break;
2991                    case R.id.action_account_details:
2992                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2993                        break;
2994                    case R.id.action_manage_accounts:
2995                        AccountUtils.launchManageAccounts(activity);
2996                        break;
2997                }
2998                return true;
2999            });
3000        }
3001        popupMenu.show();
3002    }
3003
3004    @Override
3005    public void onContactPictureClicked(Message message) {
3006        String fingerprint;
3007        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3008            fingerprint = "pgp";
3009        } else {
3010            fingerprint = message.getFingerprint();
3011        }
3012        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3013        if (received) {
3014            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3015                Jid tcp = message.getTrueCounterpart();
3016                Jid user = message.getCounterpart();
3017                if (user != null && !user.isBareJid()) {
3018                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
3019                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
3020                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
3021                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
3022                        }
3023                        highlightInConference(user.getResource());
3024                    } else {
3025                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
3026                    }
3027                }
3028                return;
3029            } else {
3030                if (!message.getContact().isSelf()) {
3031                    activity.switchToContactDetails(message.getContact(), fingerprint);
3032                    return;
3033                }
3034            }
3035        }
3036        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3037    }
3038}