XmppActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import android.telephony.TelephonyManager;
   4
   5import android.Manifest;
   6import android.annotation.SuppressLint;
   7import android.annotation.TargetApi;
   8import android.app.PendingIntent;
   9import android.content.ActivityNotFoundException;
  10import android.content.ClipData;
  11import android.content.ClipboardManager;
  12import android.content.ComponentName;
  13import android.content.Context;
  14import android.content.ContextWrapper;
  15import android.content.DialogInterface;
  16import android.content.Intent;
  17import android.content.IntentSender.SendIntentException;
  18import android.content.ServiceConnection;
  19import android.content.SharedPreferences;
  20import android.content.pm.PackageManager;
  21import android.content.pm.ResolveInfo;
  22import android.content.res.Resources;
  23import android.content.res.TypedArray;
  24import android.graphics.Bitmap;
  25import android.graphics.Color;
  26import android.graphics.Point;
  27import android.graphics.drawable.AnimatedImageDrawable;
  28import android.graphics.drawable.BitmapDrawable;
  29import android.graphics.drawable.Drawable;
  30import android.net.ConnectivityManager;
  31import android.net.Uri;
  32import android.os.AsyncTask;
  33import android.os.Build;
  34import android.os.Bundle;
  35import android.os.Handler;
  36import android.os.IBinder;
  37import android.os.PowerManager;
  38import android.os.SystemClock;
  39import android.preference.PreferenceManager;
  40import android.text.Html;
  41import android.text.InputType;
  42import android.util.DisplayMetrics;
  43import android.util.Log;
  44import android.util.Pair;
  45import android.view.Menu;
  46import android.view.MenuItem;
  47import android.view.View;
  48import android.webkit.ValueCallback;
  49import android.widget.Button;
  50import android.widget.CheckBox;
  51import android.widget.ImageView;
  52import android.widget.Toast;
  53
  54import androidx.annotation.BoolRes;
  55import androidx.annotation.NonNull;
  56import androidx.annotation.RequiresApi;
  57import androidx.annotation.StringRes;
  58import androidx.appcompat.app.AlertDialog;
  59import androidx.appcompat.app.AlertDialog.Builder;
  60import androidx.appcompat.app.AppCompatDelegate;
  61import androidx.databinding.DataBindingUtil;
  62
  63import com.google.common.base.Strings;
  64
  65import java.io.IOException;
  66import java.lang.ref.WeakReference;
  67import java.util.ArrayList;
  68import java.util.HashMap;
  69import java.util.List;
  70import java.util.PriorityQueue;
  71import java.util.concurrent.RejectedExecutionException;
  72
  73import eu.siacs.conversations.Config;
  74import eu.siacs.conversations.R;
  75import eu.siacs.conversations.crypto.PgpEngine;
  76import eu.siacs.conversations.databinding.DialogQuickeditBinding;
  77import eu.siacs.conversations.entities.Account;
  78import eu.siacs.conversations.entities.Contact;
  79import eu.siacs.conversations.entities.Conversation;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.Presences;
  82import eu.siacs.conversations.services.AvatarService;
  83import eu.siacs.conversations.services.BarcodeProvider;
  84import eu.siacs.conversations.services.EmojiInitializationService;
  85import eu.siacs.conversations.services.QuickConversationsService;
  86import eu.siacs.conversations.services.XmppConnectionService;
  87import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
  88import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  89import eu.siacs.conversations.ui.util.PresenceSelector;
  90import eu.siacs.conversations.ui.util.SoftKeyboardUtils;
  91import eu.siacs.conversations.utils.AccountUtils;
  92import eu.siacs.conversations.utils.Compatibility;
  93import eu.siacs.conversations.utils.ExceptionHelper;
  94import eu.siacs.conversations.ui.util.SettingsUtils;
  95import eu.siacs.conversations.utils.SignupUtils;
  96import eu.siacs.conversations.utils.ThemeHelper;
  97import eu.siacs.conversations.xmpp.Jid;
  98import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  99import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 100
 101public abstract class XmppActivity extends ActionBarActivity {
 102
 103    public static final String EXTRA_ACCOUNT = "account";
 104    protected static final int REQUEST_ANNOUNCE_PGP = 0x0101;
 105    protected static final int REQUEST_INVITE_TO_CONVERSATION = 0x0102;
 106    protected static final int REQUEST_CHOOSE_PGP_ID = 0x0103;
 107    protected static final int REQUEST_BATTERY_OP = 0x49ff;
 108    protected static final int REQUEST_POST_NOTIFICATION = 0x50ff;
 109    public XmppConnectionService xmppConnectionService;
 110    public boolean xmppConnectionServiceBound = false;
 111
 112    protected static final String FRAGMENT_TAG_DIALOG = "dialog";
 113
 114    private boolean isCameraFeatureAvailable = false;
 115
 116    protected int mTheme;
 117    protected HashMap<Integer,Integer> mCustomColors;
 118    protected boolean mUsingEnterKey = false;
 119    protected boolean mUseTor = false;
 120    protected Toast mToast;
 121    public Runnable onOpenPGPKeyPublished = () -> Toast.makeText(XmppActivity.this, R.string.openpgp_has_been_published, Toast.LENGTH_SHORT).show();
 122    protected ConferenceInvite mPendingConferenceInvite = null;
 123    protected PriorityQueue<Pair<Integer, ValueCallback<Uri[]>>> activityCallbacks = new PriorityQueue<>((x, y) -> y.first.compareTo(x.first));
 124    protected ServiceConnection mConnection = new ServiceConnection() {
 125
 126        @Override
 127        public void onServiceConnected(ComponentName className, IBinder service) {
 128            XmppConnectionBinder binder = (XmppConnectionBinder) service;
 129            xmppConnectionService = binder.getService();
 130            xmppConnectionServiceBound = true;
 131            registerListeners();
 132            onBackendConnected();
 133        }
 134
 135        @Override
 136        public void onServiceDisconnected(ComponentName arg0) {
 137            xmppConnectionServiceBound = false;
 138        }
 139    };
 140    private DisplayMetrics metrics;
 141    private long mLastUiRefresh = 0;
 142    private final Handler mRefreshUiHandler = new Handler();
 143    private final Runnable mRefreshUiRunnable = () -> {
 144        mLastUiRefresh = SystemClock.elapsedRealtime();
 145        refreshUiReal();
 146    };
 147    private final UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 148        @Override
 149        public void success(final Conversation conversation) {
 150            runOnUiThread(() -> {
 151                switchToConversation(conversation);
 152                hideToast();
 153            });
 154        }
 155
 156        @Override
 157        public void error(final int errorCode, Conversation object) {
 158            runOnUiThread(() -> replaceToast(getString(errorCode)));
 159        }
 160
 161        @Override
 162        public void userInputRequired(PendingIntent pi, Conversation object) {
 163
 164        }
 165    };
 166    public boolean mSkipBackgroundBinding = false;
 167
 168    public static boolean cancelPotentialWork(Message message, ImageView imageView) {
 169        final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
 170
 171        if (bitmapWorkerTask != null) {
 172            final Message oldMessage = bitmapWorkerTask.message;
 173            if (oldMessage == null || message != oldMessage) {
 174                bitmapWorkerTask.cancel(true);
 175            } else {
 176                return false;
 177            }
 178        }
 179        return true;
 180    }
 181
 182    private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
 183        if (imageView != null) {
 184            final Drawable drawable = imageView.getDrawable();
 185            if (drawable instanceof AsyncDrawable) {
 186                final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
 187                return asyncDrawable.getBitmapWorkerTask();
 188            }
 189        }
 190        return null;
 191    }
 192
 193    protected void hideToast() {
 194        if (mToast != null) {
 195            mToast.cancel();
 196        }
 197    }
 198
 199    protected void replaceToast(String msg) {
 200        replaceToast(msg, true);
 201    }
 202
 203    protected void replaceToast(String msg, boolean showlong) {
 204        hideToast();
 205        mToast = Toast.makeText(this, msg, showlong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT);
 206        mToast.show();
 207    }
 208
 209    protected final void refreshUi() {
 210        final long diff = SystemClock.elapsedRealtime() - mLastUiRefresh;
 211        if (diff > Config.REFRESH_UI_INTERVAL) {
 212            mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 213            runOnUiThread(mRefreshUiRunnable);
 214        } else {
 215            final long next = Config.REFRESH_UI_INTERVAL - diff;
 216            mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 217            mRefreshUiHandler.postDelayed(mRefreshUiRunnable, next);
 218        }
 219    }
 220
 221    abstract protected void refreshUiReal();
 222
 223    @Override
 224    protected void onStart() {
 225        super.onStart();
 226        if (!xmppConnectionServiceBound) {
 227            if (this.mSkipBackgroundBinding) {
 228                Log.d(Config.LOGTAG, "skipping background binding");
 229            } else {
 230                connectToBackend();
 231            }
 232        } else {
 233            this.registerListeners();
 234            this.onBackendConnected();
 235        }
 236        this.mUsingEnterKey = usingEnterKey();
 237        this.mUseTor = useTor();
 238    }
 239
 240    public void connectToBackend() {
 241        Intent intent = new Intent(this, XmppConnectionService.class);
 242        intent.setAction("ui");
 243        try {
 244            startService(intent);
 245        } catch (IllegalStateException e) {
 246            Log.w(Config.LOGTAG, "unable to start service from " + getClass().getSimpleName());
 247        }
 248        bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
 249    }
 250
 251    @Override
 252    protected void onStop() {
 253        super.onStop();
 254        if (xmppConnectionServiceBound) {
 255            this.unregisterListeners();
 256            unbindService(mConnection);
 257            xmppConnectionServiceBound = false;
 258        }
 259    }
 260
 261
 262    public boolean hasPgp() {
 263        return xmppConnectionService.getPgpEngine() != null;
 264    }
 265
 266    public void showInstallPgpDialog() {
 267        Builder builder = new AlertDialog.Builder(this);
 268        builder.setTitle(getString(R.string.openkeychain_required));
 269        builder.setIconAttribute(android.R.attr.alertDialogIcon);
 270        builder.setMessage(Html.fromHtml(getString(R.string.openkeychain_required_long, getString(R.string.app_name))));
 271        builder.setNegativeButton(getString(R.string.cancel), null);
 272        builder.setNeutralButton(getString(R.string.restart),
 273                (dialog, which) -> {
 274                    if (xmppConnectionServiceBound) {
 275                        unbindService(mConnection);
 276                        xmppConnectionServiceBound = false;
 277                    }
 278                    stopService(new Intent(XmppActivity.this,
 279                            XmppConnectionService.class));
 280                    finish();
 281                });
 282        builder.setPositiveButton(getString(R.string.install),
 283                (dialog, which) -> {
 284                    Uri uri = Uri
 285                            .parse("market://details?id=org.sufficientlysecure.keychain");
 286                    Intent marketIntent = new Intent(Intent.ACTION_VIEW,
 287                            uri);
 288                    PackageManager manager = getApplicationContext()
 289                            .getPackageManager();
 290                    List<ResolveInfo> infos = manager
 291                            .queryIntentActivities(marketIntent, 0);
 292                    if (infos.size() > 0) {
 293                        startActivity(marketIntent);
 294                    } else {
 295                        uri = Uri.parse("http://www.openkeychain.org/");
 296                        Intent browserIntent = new Intent(
 297                                Intent.ACTION_VIEW, uri);
 298                        startActivity(browserIntent);
 299                    }
 300                    finish();
 301                });
 302        builder.create().show();
 303    }
 304
 305    protected void deleteAccount(final Account account) {
 306        this.deleteAccount(account, null);
 307    }
 308
 309    protected void deleteAccount(final Account account, final Runnable postDelete) {
 310        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 311        final View dialogView = getLayoutInflater().inflate(R.layout.dialog_delete_account, null);
 312        final CheckBox deleteFromServer =
 313                dialogView.findViewById(R.id.delete_from_server);
 314        builder.setView(dialogView);
 315        builder.setTitle(R.string.mgmt_account_delete);
 316        builder.setPositiveButton(getString(R.string.delete),null);
 317        builder.setNegativeButton(getString(R.string.cancel), null);
 318        final AlertDialog dialog = builder.create();
 319        dialog.setOnShowListener(dialogInterface->{
 320            final Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
 321            button.setOnClickListener(v -> {
 322                final boolean unregister = deleteFromServer.isChecked();
 323                if (unregister) {
 324                    if (account.isOnlineAndConnected()) {
 325                        deleteFromServer.setEnabled(false);
 326                        button.setText(R.string.please_wait);
 327                        button.setEnabled(false);
 328                        xmppConnectionService.unregisterAccount(account, result -> {
 329                            if (result) {
 330                                dialog.dismiss();
 331                                if (postDelete != null) {
 332                                    postDelete.run();
 333                                }
 334                                if (xmppConnectionService.getAccounts().size() == 0 && Config.MAGIC_CREATE_DOMAIN != null) {
 335                                    final Intent intent = SignupUtils.getSignUpIntent(this);
 336                                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
 337                                    startActivity(intent);
 338                                }
 339                            } else {
 340                                deleteFromServer.setEnabled(true);
 341                                button.setText(R.string.delete);
 342                                button.setEnabled(true);
 343                                Toast.makeText(this,R.string.could_not_delete_account_from_server,Toast.LENGTH_LONG).show();
 344                            }
 345                        });
 346                    } else {
 347                        Toast.makeText(this,R.string.not_connected_try_again,Toast.LENGTH_LONG).show();
 348                    }
 349                } else {
 350                    xmppConnectionService.deleteAccount(account);
 351                    dialog.dismiss();
 352                    if (xmppConnectionService.getAccounts().size() == 0 && Config.MAGIC_CREATE_DOMAIN != null) {
 353                        final Intent intent = SignupUtils.getSignUpIntent(this);
 354                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
 355                        startActivity(intent);
 356                    } else if (postDelete != null) {
 357                        postDelete.run();
 358                    }
 359                }
 360            });
 361        });
 362        dialog.show();
 363    }
 364
 365    abstract void onBackendConnected();
 366
 367    protected void registerListeners() {
 368        if (this instanceof XmppConnectionService.OnConversationUpdate) {
 369            this.xmppConnectionService.setOnConversationListChangedListener((XmppConnectionService.OnConversationUpdate) this);
 370        }
 371        if (this instanceof XmppConnectionService.OnAccountUpdate) {
 372            this.xmppConnectionService.setOnAccountListChangedListener((XmppConnectionService.OnAccountUpdate) this);
 373        }
 374        if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 375            this.xmppConnectionService.setOnCaptchaRequestedListener((XmppConnectionService.OnCaptchaRequested) this);
 376        }
 377        if (this instanceof XmppConnectionService.OnRosterUpdate) {
 378            this.xmppConnectionService.setOnRosterUpdateListener((XmppConnectionService.OnRosterUpdate) this);
 379        }
 380        if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 381            this.xmppConnectionService.setOnMucRosterUpdateListener((XmppConnectionService.OnMucRosterUpdate) this);
 382        }
 383        if (this instanceof OnUpdateBlocklist) {
 384            this.xmppConnectionService.setOnUpdateBlocklistListener((OnUpdateBlocklist) this);
 385        }
 386        if (this instanceof XmppConnectionService.OnShowErrorToast) {
 387            this.xmppConnectionService.setOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 388        }
 389        if (this instanceof OnKeyStatusUpdated) {
 390            this.xmppConnectionService.setOnKeyStatusUpdatedListener((OnKeyStatusUpdated) this);
 391        }
 392        if (this instanceof XmppConnectionService.OnJingleRtpConnectionUpdate) {
 393            this.xmppConnectionService.setOnRtpConnectionUpdateListener((XmppConnectionService.OnJingleRtpConnectionUpdate) this);
 394        }
 395    }
 396
 397    protected void unregisterListeners() {
 398        if (this instanceof XmppConnectionService.OnConversationUpdate) {
 399            this.xmppConnectionService.removeOnConversationListChangedListener((XmppConnectionService.OnConversationUpdate) this);
 400        }
 401        if (this instanceof XmppConnectionService.OnAccountUpdate) {
 402            this.xmppConnectionService.removeOnAccountListChangedListener((XmppConnectionService.OnAccountUpdate) this);
 403        }
 404        if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 405            this.xmppConnectionService.removeOnCaptchaRequestedListener((XmppConnectionService.OnCaptchaRequested) this);
 406        }
 407        if (this instanceof XmppConnectionService.OnRosterUpdate) {
 408            this.xmppConnectionService.removeOnRosterUpdateListener((XmppConnectionService.OnRosterUpdate) this);
 409        }
 410        if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 411            this.xmppConnectionService.removeOnMucRosterUpdateListener((XmppConnectionService.OnMucRosterUpdate) this);
 412        }
 413        if (this instanceof OnUpdateBlocklist) {
 414            this.xmppConnectionService.removeOnUpdateBlocklistListener((OnUpdateBlocklist) this);
 415        }
 416        if (this instanceof XmppConnectionService.OnShowErrorToast) {
 417            this.xmppConnectionService.removeOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 418        }
 419        if (this instanceof OnKeyStatusUpdated) {
 420            this.xmppConnectionService.removeOnNewKeysAvailableListener((OnKeyStatusUpdated) this);
 421        }
 422        if (this instanceof XmppConnectionService.OnJingleRtpConnectionUpdate) {
 423            this.xmppConnectionService.removeRtpConnectionUpdateListener((XmppConnectionService.OnJingleRtpConnectionUpdate) this);
 424        }
 425    }
 426
 427    @Override
 428    public boolean onOptionsItemSelected(final MenuItem item) {
 429        switch (item.getItemId()) {
 430            case R.id.action_settings:
 431                startActivity(new Intent(this, SettingsActivity.class));
 432                break;
 433            case R.id.action_accounts:
 434                AccountUtils.launchManageAccounts(this);
 435                break;
 436            case R.id.action_account:
 437                AccountUtils.launchManageAccount(this);
 438                break;
 439            case android.R.id.home:
 440                finish();
 441                break;
 442            case R.id.action_show_qr_code:
 443                showQrCode();
 444                break;
 445        }
 446        return super.onOptionsItemSelected(item);
 447    }
 448
 449    public void selectPresence(final Conversation conversation, final PresenceSelector.OnPresenceSelected listener) {
 450        final Contact contact = conversation.getContact();
 451        if (contact.showInRoster() || contact.isSelf()) {
 452            final Presences presences = contact.getPresences();
 453            if (presences.size() == 0) {
 454                if (contact.isSelf()) {
 455                    conversation.setNextCounterpart(null);
 456                    listener.onPresenceSelected();
 457                } else if (!contact.getOption(Contact.Options.TO)
 458                        && !contact.getOption(Contact.Options.ASKING)
 459                        && contact.getAccount().getStatus() == Account.State.ONLINE) {
 460                    showAskForPresenceDialog(contact);
 461                } else if (!contact.getOption(Contact.Options.TO)
 462                        || !contact.getOption(Contact.Options.FROM)) {
 463                    PresenceSelector.warnMutualPresenceSubscription(this, conversation, listener);
 464                } else {
 465                    conversation.setNextCounterpart(null);
 466                    listener.onPresenceSelected();
 467                }
 468            } else if (presences.size() == 1) {
 469                final String presence = presences.toResourceArray()[0];
 470                conversation.setNextCounterpart(PresenceSelector.getNextCounterpart(contact, presence));
 471                listener.onPresenceSelected();
 472            } else {
 473                PresenceSelector.showPresenceSelectionDialog(this, conversation, listener);
 474            }
 475        } else {
 476            showAddToRosterDialog(conversation.getContact());
 477        }
 478    }
 479
 480    @SuppressLint("UnsupportedChromeOsCameraSystemFeature")
 481    @Override
 482    protected void onCreate(Bundle savedInstanceState) {
 483        super.onCreate(savedInstanceState);
 484        metrics = getResources().getDisplayMetrics();
 485        ExceptionHelper.init(getApplicationContext());
 486        EmojiInitializationService.execute(this);
 487        this.isCameraFeatureAvailable = getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY);
 488        this.mTheme = findTheme();
 489        setTheme(this.mTheme);
 490        this.mCustomColors = ThemeHelper.applyCustomColors(this);
 491    }
 492
 493    protected boolean isCameraFeatureAvailable() {
 494        return this.isCameraFeatureAvailable;
 495    }
 496
 497    public boolean isDarkTheme() {
 498        return ThemeHelper.isDark(mTheme);
 499    }
 500
 501    public int getThemeResource(int r_attr_name, int r_drawable_def) {
 502        int[] attrs = {r_attr_name};
 503        TypedArray ta = this.getTheme().obtainStyledAttributes(attrs);
 504
 505        int res = ta.getResourceId(0, r_drawable_def);
 506        ta.recycle();
 507
 508        return res;
 509    }
 510
 511    protected boolean isOptimizingBattery() {
 512        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 513            final PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
 514            return pm != null
 515                    && !pm.isIgnoringBatteryOptimizations(getPackageName());
 516        } else {
 517            return false;
 518        }
 519    }
 520
 521    protected boolean isAffectedByDataSaver() {
 522        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 523            final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 524            return cm != null
 525                    && cm.isActiveNetworkMetered()
 526                    && Compatibility.getRestrictBackgroundStatus(cm) == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED;
 527        } else {
 528            return false;
 529        }
 530    }
 531
 532    private boolean usingEnterKey() {
 533        return getBooleanPreference("display_enter_key", R.bool.display_enter_key);
 534    }
 535
 536    private boolean useTor() {
 537        return getBooleanPreference("use_tor", R.bool.use_tor);
 538    }
 539
 540    protected SharedPreferences getPreferences() {
 541        return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
 542    }
 543
 544    protected boolean getBooleanPreference(String name, @BoolRes int res) {
 545        return getPreferences().getBoolean(name, getResources().getBoolean(res));
 546    }
 547
 548    public void startCommand(final Account account, final Jid jid, final String node) {
 549        Intent intent = new Intent(this, ConversationsActivity.class);
 550        intent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
 551        intent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, xmppConnectionService.findOrCreateConversation(account, jid, false, false).getUuid());
 552        intent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, "command");
 553        intent.putExtra(ConversationsActivity.EXTRA_NODE, node);
 554        intent.putExtra(ConversationsActivity.EXTRA_JID, (CharSequence) jid);
 555        intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
 556        startActivity(intent);
 557    }
 558
 559    public void switchToConversation(Conversation conversation) {
 560        switchToConversation(conversation, null);
 561    }
 562
 563    public void switchToConversationAndQuote(Conversation conversation, String text) {
 564        switchToConversation(conversation, text, true, null, false, false);
 565    }
 566
 567    public void switchToConversation(Conversation conversation, String text) {
 568        switchToConversation(conversation, text, false, null, false, false);
 569    }
 570
 571    public void switchToConversationDoNotAppend(Conversation conversation, String text) {
 572        switchToConversation(conversation, text, false, null, false, true);
 573    }
 574
 575    public void highlightInMuc(Conversation conversation, String nick) {
 576        switchToConversation(conversation, null, false, nick, false, false);
 577    }
 578
 579    public void privateMsgInMuc(Conversation conversation, String nick) {
 580        switchToConversation(conversation, null, false, nick, true, false);
 581    }
 582
 583    public void switchToConversation(Conversation conversation, String text, boolean asQuote, String nick, boolean pm, boolean doNotAppend) {
 584        switchToConversation(conversation, text, asQuote, nick, pm, doNotAppend, null);
 585    }
 586
 587    public void switchToConversation(Conversation conversation, String text, boolean asQuote, String nick, boolean pm, boolean doNotAppend, String postInit) {
 588        if (conversation == null) return;
 589
 590        Intent intent = new Intent(this, ConversationsActivity.class);
 591        intent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
 592        intent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
 593        if (text != null) {
 594            intent.putExtra(Intent.EXTRA_TEXT, text);
 595            if (asQuote) {
 596                intent.putExtra(ConversationsActivity.EXTRA_AS_QUOTE, true);
 597            }
 598        }
 599        if (nick != null) {
 600            intent.putExtra(ConversationsActivity.EXTRA_NICK, nick);
 601            intent.putExtra(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, pm);
 602        }
 603        if (doNotAppend) {
 604            intent.putExtra(ConversationsActivity.EXTRA_DO_NOT_APPEND, true);
 605        }
 606        intent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, postInit);
 607        intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
 608        startActivity(intent);
 609        finish();
 610    }
 611
 612    public void switchToContactDetails(Contact contact) {
 613        switchToContactDetails(contact, null);
 614    }
 615
 616    public void switchToContactDetails(Contact contact, String messageFingerprint) {
 617        Intent intent = new Intent(this, ContactDetailsActivity.class);
 618        intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 619        intent.putExtra(EXTRA_ACCOUNT, contact.getAccount().getJid().asBareJid().toEscapedString());
 620        intent.putExtra("contact", contact.getJid().toEscapedString());
 621        intent.putExtra("fingerprint", messageFingerprint);
 622        startActivity(intent);
 623    }
 624
 625    public void switchToAccount(Account account, String fingerprint) {
 626        switchToAccount(account, false, fingerprint);
 627    }
 628
 629    public void switchToAccount(Account account) {
 630        switchToAccount(account, false, null);
 631    }
 632
 633    public void switchToAccount(Account account, boolean init, String fingerprint) {
 634        Intent intent = new Intent(this, EditAccountActivity.class);
 635        intent.putExtra("jid", account.getJid().asBareJid().toEscapedString());
 636        intent.putExtra("init", init);
 637        if (init) {
 638            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION);
 639        }
 640        if (fingerprint != null) {
 641            intent.putExtra("fingerprint", fingerprint);
 642        }
 643        startActivity(intent);
 644        if (init) {
 645            overridePendingTransition(0, 0);
 646        }
 647    }
 648
 649    protected void delegateUriPermissionsToService(Uri uri) {
 650        Intent intent = new Intent(this, XmppConnectionService.class);
 651        intent.setAction(Intent.ACTION_SEND);
 652        intent.setData(uri);
 653        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 654        try {
 655            startService(intent);
 656        } catch (Exception e) {
 657            Log.e(Config.LOGTAG, "unable to delegate uri permission", e);
 658        }
 659    }
 660
 661    protected void inviteToConversation(Conversation conversation) {
 662        startActivityForResult(ChooseContactActivity.create(this, conversation), REQUEST_INVITE_TO_CONVERSATION);
 663    }
 664
 665    protected void announcePgp(final Account account, final Conversation conversation, Intent intent, final Runnable onSuccess) {
 666        if (account.getPgpId() == 0) {
 667            choosePgpSignId(account);
 668        } else {
 669            final String status = Strings.nullToEmpty(account.getPresenceStatusMessage());
 670            xmppConnectionService.getPgpEngine().generateSignature(intent, account, status, new UiCallback<String>() {
 671
 672                @Override
 673                public void userInputRequired(PendingIntent pi, String signature) {
 674                    try {
 675                        startIntentSenderForResult(pi.getIntentSender(), REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
 676                    } catch (final SendIntentException ignored) {
 677                    }
 678                }
 679
 680                @Override
 681                public void success(String signature) {
 682                    account.setPgpSignature(signature);
 683                    xmppConnectionService.databaseBackend.updateAccount(account);
 684                    xmppConnectionService.sendPresence(account);
 685                    if (conversation != null) {
 686                        conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 687                        xmppConnectionService.updateConversation(conversation);
 688                        refreshUi();
 689                    }
 690                    if (onSuccess != null) {
 691                        runOnUiThread(onSuccess);
 692                    }
 693                }
 694
 695                @Override
 696                public void error(int error, String signature) {
 697                    if (error == 0) {
 698                        account.setPgpSignId(0);
 699                        account.unsetPgpSignature();
 700                        xmppConnectionService.databaseBackend.updateAccount(account);
 701                        choosePgpSignId(account);
 702                    } else {
 703                        displayErrorDialog(error);
 704                    }
 705                }
 706            });
 707        }
 708    }
 709
 710    @SuppressWarnings("deprecation")
 711    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 712    protected void setListItemBackgroundOnView(View view) {
 713        int sdk = android.os.Build.VERSION.SDK_INT;
 714        if (sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
 715            view.setBackgroundDrawable(getResources().getDrawable(R.drawable.greybackground));
 716        } else {
 717            view.setBackground(getResources().getDrawable(R.drawable.greybackground));
 718        }
 719    }
 720
 721    protected void choosePgpSignId(Account account) {
 722        xmppConnectionService.getPgpEngine().chooseKey(account, new UiCallback<Account>() {
 723            @Override
 724            public void success(Account account1) {
 725            }
 726
 727            @Override
 728            public void error(int errorCode, Account object) {
 729
 730            }
 731
 732            @Override
 733            public void userInputRequired(PendingIntent pi, Account object) {
 734                try {
 735                    startIntentSenderForResult(pi.getIntentSender(),
 736                            REQUEST_CHOOSE_PGP_ID, null, 0, 0, 0);
 737                } catch (final SendIntentException ignored) {
 738                }
 739            }
 740        });
 741    }
 742
 743    protected void displayErrorDialog(final int errorCode) {
 744        runOnUiThread(() -> {
 745            Builder builder = new Builder(XmppActivity.this);
 746            builder.setIconAttribute(android.R.attr.alertDialogIcon);
 747            builder.setTitle(getString(R.string.error));
 748            builder.setMessage(errorCode);
 749            builder.setNeutralButton(R.string.accept, null);
 750            builder.create().show();
 751        });
 752
 753    }
 754
 755    protected void showAddToRosterDialog(final Contact contact) {
 756        AlertDialog.Builder builder = new AlertDialog.Builder(this);
 757        builder.setTitle(contact.getJid().toString());
 758        builder.setMessage(getString(R.string.not_in_roster));
 759        builder.setNegativeButton(getString(R.string.cancel), null);
 760        builder.setPositiveButton(getString(R.string.add_contact), (dialog, which) -> {
 761            contact.copySystemTagsToGroups();
 762            xmppConnectionService.createContact(contact, true);
 763        });
 764        builder.create().show();
 765    }
 766
 767    private void showAskForPresenceDialog(final Contact contact) {
 768        AlertDialog.Builder builder = new AlertDialog.Builder(this);
 769        builder.setTitle(contact.getJid().toString());
 770        builder.setMessage(R.string.request_presence_updates);
 771        builder.setNegativeButton(R.string.cancel, null);
 772        builder.setPositiveButton(R.string.request_now,
 773                (dialog, which) -> {
 774                    if (xmppConnectionServiceBound) {
 775                        xmppConnectionService.sendPresencePacket(contact
 776                                .getAccount(), xmppConnectionService
 777                                .getPresenceGenerator()
 778                                .requestPresenceUpdatesFrom(contact));
 779                    }
 780                });
 781        builder.create().show();
 782    }
 783
 784    protected void quickEdit(String previousValue, @StringRes int hint, OnValueEdited callback) {
 785        quickEdit(previousValue, callback, hint, false, false);
 786    }
 787
 788    protected void quickEdit(String previousValue, @StringRes int hint, OnValueEdited callback, boolean permitEmpty) {
 789        quickEdit(previousValue, callback, hint, false, permitEmpty);
 790    }
 791
 792    protected void quickPasswordEdit(String previousValue, OnValueEdited callback) {
 793        quickEdit(previousValue, callback, R.string.password, true, false);
 794    }
 795
 796    protected void quickEdit(final String previousValue, final OnValueEdited callback, final @StringRes int hint, boolean password, boolean permitEmpty) {
 797        quickEdit(previousValue, callback, hint, password, permitEmpty, false);
 798    }
 799
 800    @SuppressLint("InflateParams")
 801    protected void quickEdit(final String previousValue,
 802                           final OnValueEdited callback,
 803                           final @StringRes int hint,
 804                           boolean password,
 805                           boolean permitEmpty,
 806                           boolean alwaysCallback) {
 807        AlertDialog.Builder builder = new AlertDialog.Builder(this);
 808        DialogQuickeditBinding binding = DataBindingUtil.inflate(getLayoutInflater(), R.layout.dialog_quickedit, null, false);
 809        if (password) {
 810            binding.inputEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 811        }
 812        builder.setPositiveButton(R.string.accept, null);
 813        if (hint != 0) {
 814            binding.inputLayout.setHint(getString(hint));
 815        }
 816        binding.inputEditText.requestFocus();
 817        if (previousValue != null) {
 818            binding.inputEditText.getText().append(previousValue);
 819        }
 820        builder.setView(binding.getRoot());
 821        builder.setNegativeButton(R.string.cancel, null);
 822        final AlertDialog dialog = builder.create();
 823        dialog.setOnShowListener(d -> SoftKeyboardUtils.showKeyboard(binding.inputEditText));
 824        dialog.show();
 825        View.OnClickListener clickListener = v -> {
 826            String value = binding.inputEditText.getText().toString();
 827            if ((alwaysCallback || !value.equals(previousValue)) && (!value.trim().isEmpty() || permitEmpty)) {
 828                String error = callback.onValueEdited(value);
 829                if (error != null) {
 830                    binding.inputLayout.setError(error);
 831                    return;
 832                }
 833            }
 834            SoftKeyboardUtils.hideSoftKeyboard(binding.inputEditText);
 835            dialog.dismiss();
 836        };
 837        dialog.getButton(DialogInterface.BUTTON_POSITIVE).setOnClickListener(clickListener);
 838        dialog.getButton(DialogInterface.BUTTON_NEGATIVE).setOnClickListener((v -> {
 839            SoftKeyboardUtils.hideSoftKeyboard(binding.inputEditText);
 840            dialog.dismiss();
 841        }));
 842        dialog.setCanceledOnTouchOutside(false);
 843        dialog.setOnDismissListener(dialog1 -> {
 844            SoftKeyboardUtils.hideSoftKeyboard(binding.inputEditText);
 845        });
 846    }
 847
 848    protected boolean hasStoragePermission(int requestCode) {
 849        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) {
 850            if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 851                requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
 852                return false;
 853            } else {
 854                return true;
 855            }
 856        } else {
 857            return true;
 858        }
 859    }
 860
 861    public synchronized void startActivityWithCallback(Intent intent, ValueCallback<Uri[]> cb) {
 862        Pair<Integer, ValueCallback<Uri[]>> peek = activityCallbacks.peek();
 863        int index = peek == null ? 1 : peek.first + 1;
 864        activityCallbacks.add(new Pair<>(index, cb));
 865        startActivityForResult(intent, index);
 866    }
 867
 868    protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
 869        super.onActivityResult(requestCode, resultCode, data);
 870        if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 871            mPendingConferenceInvite = ConferenceInvite.parse(data);
 872            if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 873                if (mPendingConferenceInvite.execute(this)) {
 874                    mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 875                    mToast.show();
 876                }
 877                mPendingConferenceInvite = null;
 878            }
 879        } else if (resultCode == RESULT_OK) {
 880            for (Pair<Integer, ValueCallback<Uri[]>> cb : new ArrayList<>(activityCallbacks)) {
 881                if (cb.first == requestCode) {
 882                    activityCallbacks.remove(cb);
 883                    ArrayList<Uri> dataUris = new ArrayList<>();
 884                    if (data.getDataString() != null) {
 885                        dataUris.add(Uri.parse(data.getDataString()));
 886                    } else if (data.getClipData() != null) {
 887                        for (int i = 0; i < data.getClipData().getItemCount(); i++) {
 888                            dataUris.add(data.getClipData().getItemAt(i).getUri());
 889                        }
 890                    }
 891                    cb.second.onReceiveValue(dataUris.toArray(new Uri[0]));
 892                }
 893            }
 894        }
 895    }
 896
 897    public boolean copyTextToClipboard(String text, int labelResId) {
 898        ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 899        String label = getResources().getString(labelResId);
 900        if (mClipBoardManager != null) {
 901            ClipData mClipData = ClipData.newPlainText(label, text);
 902            mClipBoardManager.setPrimaryClip(mClipData);
 903            return true;
 904        }
 905        return false;
 906    }
 907
 908    protected boolean manuallyChangePresence() {
 909        return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 910    }
 911
 912    protected String getShareableUri() {
 913        return getShareableUri(false);
 914    }
 915
 916    protected String getShareableUri(boolean http) {
 917        return null;
 918    }
 919
 920    protected void shareLink(boolean http) {
 921        String uri = getShareableUri(http);
 922        if (uri == null || uri.isEmpty()) {
 923            return;
 924        }
 925        Intent intent = new Intent(Intent.ACTION_SEND);
 926        intent.setType("text/plain");
 927        intent.putExtra(Intent.EXTRA_TEXT, getShareableUri(http));
 928        try {
 929            startActivity(Intent.createChooser(intent, getText(R.string.share_uri_with)));
 930        } catch (ActivityNotFoundException e) {
 931            Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 932        }
 933    }
 934
 935    protected void launchOpenKeyChain(long keyId) {
 936        PgpEngine pgp = XmppActivity.this.xmppConnectionService.getPgpEngine();
 937        try {
 938            startIntentSenderForResult(
 939                    pgp.getIntentForKey(keyId).getIntentSender(), 0, null, 0,
 940                    0, 0);
 941        } catch (Throwable e) {
 942            Toast.makeText(XmppActivity.this, R.string.openpgp_error, Toast.LENGTH_SHORT).show();
 943        }
 944    }
 945
 946    @Override
 947    protected void onResume(){
 948        super.onResume();
 949        SettingsUtils.applyScreenshotPreventionSetting(this);
 950    }
 951
 952    protected int findTheme() {
 953        return ThemeHelper.find(this);
 954    }
 955
 956    @Override
 957    public void onPause() {
 958        super.onPause();
 959    }
 960
 961    @Override
 962    public boolean onMenuOpened(int id, Menu menu) {
 963        if (id == AppCompatDelegate.FEATURE_SUPPORT_ACTION_BAR && menu != null) {
 964            MenuDoubleTabUtil.recordMenuOpen();
 965        }
 966        return super.onMenuOpened(id, menu);
 967    }
 968
 969    protected void showQrCode() {
 970        showQrCode(getShareableUri());
 971    }
 972
 973    protected void showQrCode(final String uri) {
 974        if (uri == null || uri.isEmpty()) {
 975            return;
 976        }
 977        Point size = new Point();
 978        getWindowManager().getDefaultDisplay().getSize(size);
 979        final int width = (size.x < size.y ? size.x : size.y);
 980        Bitmap bitmap = BarcodeProvider.create2dBarcodeBitmap(uri, width);
 981        ImageView view = new ImageView(this);
 982        view.setBackgroundColor(Color.WHITE);
 983        view.setImageBitmap(bitmap);
 984        AlertDialog.Builder builder = new AlertDialog.Builder(this);
 985        builder.setView(view);
 986        builder.create().show();
 987    }
 988
 989    protected Account extractAccount(Intent intent) {
 990        final String jid = intent != null ? intent.getStringExtra(EXTRA_ACCOUNT) : null;
 991        try {
 992            return jid != null ? xmppConnectionService.findAccountByJid(Jid.ofEscaped(jid)) : null;
 993        } catch (IllegalArgumentException e) {
 994            return null;
 995        }
 996    }
 997
 998    public AvatarService avatarService() {
 999        return xmppConnectionService.getAvatarService();
1000    }
1001
1002    public void loadBitmap(Message message, ImageView imageView) {
1003        Drawable bm;
1004        try {
1005            bm = xmppConnectionService.getFileBackend().getThumbnail(message, getResources(), (int) (metrics.density * 288), true);
1006        } catch (IOException e) {
1007            bm = null;
1008        }
1009        if (bm != null) {
1010            cancelPotentialWork(message, imageView);
1011            imageView.setImageDrawable(bm);
1012            imageView.setBackgroundColor(0x00000000);
1013            if (Build.VERSION.SDK_INT >= 28 && bm instanceof AnimatedImageDrawable) {
1014                ((AnimatedImageDrawable) bm).start();
1015            }
1016        } else {
1017            if (cancelPotentialWork(message, imageView)) {
1018                final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
1019                final BitmapDrawable fallbackThumb = xmppConnectionService.getFileBackend().getFallbackThumbnail(message, (int) (metrics.density * 288), true);
1020                imageView.setBackgroundColor(fallbackThumb == null ? 0xff333333 : 0x00000000);
1021                final AsyncDrawable asyncDrawable = new AsyncDrawable(
1022                        getResources(), fallbackThumb != null ? fallbackThumb.getBitmap() : null, task);
1023                imageView.setImageDrawable(asyncDrawable);
1024                try {
1025                    task.execute(message);
1026                } catch (final RejectedExecutionException ignored) {
1027                    ignored.printStackTrace();
1028                }
1029            }
1030        }
1031    }
1032
1033    protected interface OnValueEdited {
1034        String onValueEdited(String value);
1035    }
1036
1037    public static class ConferenceInvite {
1038        private String uuid;
1039        private final List<Jid> jids = new ArrayList<>();
1040
1041        public static ConferenceInvite parse(Intent data) {
1042            ConferenceInvite invite = new ConferenceInvite();
1043            invite.uuid = data.getStringExtra(ChooseContactActivity.EXTRA_CONVERSATION);
1044            if (invite.uuid == null) {
1045                return null;
1046            }
1047            invite.jids.addAll(ChooseContactActivity.extractJabberIds(data));
1048            return invite;
1049        }
1050
1051        public boolean execute(XmppActivity activity) {
1052            XmppConnectionService service = activity.xmppConnectionService;
1053            Conversation conversation = service.findConversationByUuid(this.uuid);
1054            if (conversation == null) {
1055                return false;
1056            }
1057            if (conversation.getMode() == Conversation.MODE_MULTI) {
1058                for (Jid jid : jids) {
1059                    service.invite(conversation, jid);
1060                }
1061                return false;
1062            } else {
1063                jids.add(conversation.getJid().asBareJid());
1064                return service.createAdhocConference(conversation.getAccount(), null, jids, activity.adhocCallback);
1065            }
1066        }
1067    }
1068
1069    static class BitmapWorkerTask extends AsyncTask<Message, Void, Drawable> {
1070        private final WeakReference<ImageView> imageViewReference;
1071        private Message message = null;
1072
1073        private BitmapWorkerTask(ImageView imageView) {
1074            this.imageViewReference = new WeakReference<>(imageView);
1075        }
1076
1077        @Override
1078        protected Drawable doInBackground(Message... params) {
1079            if (isCancelled()) {
1080                return null;
1081            }
1082            final XmppActivity activity = find(imageViewReference);
1083            Drawable d = null;
1084            message = params[0];
1085            try {
1086                if (activity != null && activity.xmppConnectionService != null) {
1087                    d = activity.xmppConnectionService.getFileBackend().getThumbnail(message, imageViewReference.get().getContext().getResources(), (int) (activity.metrics.density * 288), false);
1088                }
1089            } catch (IOException e) { e.printStackTrace(); }
1090            final ImageView imageView = imageViewReference.get();
1091            if (d == null && activity != null && activity.xmppConnectionService != null && imageView != null && imageView.getDrawable() instanceof AsyncDrawable && ((AsyncDrawable) imageView.getDrawable()).getBitmap() == null) {
1092                d = activity.xmppConnectionService.getFileBackend().getFallbackThumbnail(message, (int) (activity.metrics.density * 288), false);
1093            }
1094            return d;
1095        }
1096
1097        @Override
1098        protected void onPostExecute(final Drawable drawable) {
1099            if (!isCancelled()) {
1100                final ImageView imageView = imageViewReference.get();
1101                if (imageView != null) {
1102                    Drawable old = imageView.getDrawable();
1103                    if (old instanceof AsyncDrawable) {
1104                        ((AsyncDrawable) old).clearTask();
1105                    }
1106                    if (drawable != null) {
1107                        imageView.setImageDrawable(drawable);
1108                    }
1109                    imageView.setBackgroundColor(drawable == null ? 0xff333333 : 0x00000000);
1110                    if (Build.VERSION.SDK_INT >= 28 && drawable instanceof AnimatedImageDrawable) {
1111                        ((AnimatedImageDrawable) drawable).start();
1112                    }
1113                }
1114            }
1115        }
1116    }
1117
1118    private static class AsyncDrawable extends BitmapDrawable {
1119        private WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1120
1121        private AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
1122            super(res, bitmap);
1123            bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
1124        }
1125
1126        private synchronized BitmapWorkerTask getBitmapWorkerTask() {
1127            if (bitmapWorkerTaskReference == null) return null;
1128
1129            return bitmapWorkerTaskReference.get();
1130        }
1131
1132        public synchronized void clearTask() {
1133            bitmapWorkerTaskReference = null;
1134        }
1135    }
1136
1137    public static XmppActivity find(@NonNull WeakReference<ImageView> viewWeakReference) {
1138        final View view = viewWeakReference.get();
1139        return view == null ? null : find(view);
1140    }
1141
1142    public static XmppActivity find(@NonNull final View view) {
1143        Context context = view.getContext();
1144        while (context instanceof ContextWrapper) {
1145            if (context instanceof XmppActivity) {
1146                return (XmppActivity) context;
1147            }
1148            context = ((ContextWrapper) context).getBaseContext();
1149        }
1150        return null;
1151    }
1152}