XmppActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.annotation.TargetApi;
   6import android.support.v7.app.ActionBar;
   7import android.support.v7.app.AlertDialog;
   8import android.support.v7.app.AlertDialog.Builder;
   9import android.app.PendingIntent;
  10import android.content.ActivityNotFoundException;
  11import android.content.ClipData;
  12import android.content.ClipboardManager;
  13import android.content.ComponentName;
  14import android.content.Context;
  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.BitmapDrawable;
  28import android.graphics.drawable.Drawable;
  29import android.net.ConnectivityManager;
  30import android.net.Uri;
  31import android.os.AsyncTask;
  32import android.os.Build;
  33import android.os.Bundle;
  34import android.os.Handler;
  35import android.os.IBinder;
  36import android.os.PowerManager;
  37import android.os.SystemClock;
  38import android.preference.PreferenceManager;
  39import android.support.v4.content.ContextCompat;
  40import android.support.v7.app.AppCompatActivity;
  41import android.support.v7.app.AppCompatDelegate;
  42import android.text.InputType;
  43import android.util.DisplayMetrics;
  44import android.util.Log;
  45import android.view.Menu;
  46import android.view.MenuItem;
  47import android.view.View;
  48import android.view.inputmethod.InputMethodManager;
  49import android.widget.EditText;
  50import android.widget.ImageView;
  51import android.widget.Toast;
  52
  53import java.io.FileNotFoundException;
  54import java.lang.ref.WeakReference;
  55import java.util.ArrayList;
  56import java.util.List;
  57import java.util.concurrent.RejectedExecutionException;
  58
  59import eu.siacs.conversations.Config;
  60import eu.siacs.conversations.R;
  61import eu.siacs.conversations.crypto.PgpEngine;
  62import eu.siacs.conversations.entities.Account;
  63import eu.siacs.conversations.entities.Contact;
  64import eu.siacs.conversations.entities.Conversation;
  65import eu.siacs.conversations.entities.Message;
  66import eu.siacs.conversations.entities.Presences;
  67import eu.siacs.conversations.services.AvatarService;
  68import eu.siacs.conversations.services.BarcodeProvider;
  69import eu.siacs.conversations.services.XmppConnectionService;
  70import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
  71import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  72import eu.siacs.conversations.ui.util.PresenceSelector;
  73import eu.siacs.conversations.utils.ExceptionHelper;
  74import eu.siacs.conversations.utils.ThemeHelper;
  75import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  76import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  77import rocks.xmpp.addr.Jid;
  78
  79public abstract class XmppActivity extends AppCompatActivity {
  80
  81	public static final String EXTRA_ACCOUNT = "account";
  82	protected static final int REQUEST_ANNOUNCE_PGP = 0x0101;
  83	protected static final int REQUEST_INVITE_TO_CONVERSATION = 0x0102;
  84	protected static final int REQUEST_CHOOSE_PGP_ID = 0x0103;
  85	protected static final int REQUEST_BATTERY_OP = 0x49ff;
  86	public XmppConnectionService xmppConnectionService;
  87	public boolean xmppConnectionServiceBound = false;
  88	protected boolean registeredListeners = false;
  89
  90	protected int mColorRed;
  91	protected int mColorOrange;
  92	protected int mColorGreen;
  93
  94	protected static final String FRAGMENT_TAG_DIALOG = "dialog";
  95
  96	private boolean isCameraFeatureAvailable = false;
  97
  98	protected boolean mUseSubject = true;
  99	protected int mTheme;
 100	protected boolean mUsingEnterKey = false;
 101	protected Toast mToast;
 102	public Runnable onOpenPGPKeyPublished = () -> Toast.makeText(XmppActivity.this, R.string.openpgp_has_been_published, Toast.LENGTH_SHORT).show();
 103	protected ConferenceInvite mPendingConferenceInvite = null;
 104	protected ServiceConnection mConnection = new ServiceConnection() {
 105
 106		@Override
 107		public void onServiceConnected(ComponentName className, IBinder service) {
 108			XmppConnectionBinder binder = (XmppConnectionBinder) service;
 109			xmppConnectionService = binder.getService();
 110			xmppConnectionServiceBound = true;
 111			if (!registeredListeners && shouldRegisterListeners()) {
 112				registerListeners();
 113				registeredListeners = true;
 114			}
 115			onBackendConnected();
 116		}
 117
 118		@Override
 119		public void onServiceDisconnected(ComponentName arg0) {
 120			xmppConnectionServiceBound = false;
 121		}
 122	};
 123	private DisplayMetrics metrics;
 124	private long mLastUiRefresh = 0;
 125	private Handler mRefreshUiHandler = new Handler();
 126	private Runnable mRefreshUiRunnable = () -> {
 127		mLastUiRefresh = SystemClock.elapsedRealtime();
 128		refreshUiReal();
 129	};
 130	private UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 131		@Override
 132		public void success(final Conversation conversation) {
 133			runOnUiThread(() -> {
 134				switchToConversation(conversation);
 135				hideToast();
 136			});
 137		}
 138
 139		@Override
 140		public void error(final int errorCode, Conversation object) {
 141			runOnUiThread(() -> replaceToast(getString(errorCode)));
 142		}
 143
 144		@Override
 145		public void userInputRequried(PendingIntent pi, Conversation object) {
 146
 147		}
 148	};
 149	public boolean mSkipBackgroundBinding = false;
 150
 151	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
 152		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
 153
 154		if (bitmapWorkerTask != null) {
 155			final Message oldMessage = bitmapWorkerTask.message;
 156			if (oldMessage == null || message != oldMessage) {
 157				bitmapWorkerTask.cancel(true);
 158			} else {
 159				return false;
 160			}
 161		}
 162		return true;
 163	}
 164
 165	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
 166		if (imageView != null) {
 167			final Drawable drawable = imageView.getDrawable();
 168			if (drawable instanceof AsyncDrawable) {
 169				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
 170				return asyncDrawable.getBitmapWorkerTask();
 171			}
 172		}
 173		return null;
 174	}
 175
 176	protected void hideToast() {
 177		if (mToast != null) {
 178			mToast.cancel();
 179		}
 180	}
 181
 182	protected void replaceToast(String msg) {
 183		replaceToast(msg, true);
 184	}
 185
 186	protected void replaceToast(String msg, boolean showlong) {
 187		hideToast();
 188		mToast = Toast.makeText(this, msg, showlong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT);
 189		mToast.show();
 190	}
 191
 192	protected final void refreshUi() {
 193		final long diff = SystemClock.elapsedRealtime() - mLastUiRefresh;
 194		if (diff > Config.REFRESH_UI_INTERVAL) {
 195			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 196			runOnUiThread(mRefreshUiRunnable);
 197		} else {
 198			final long next = Config.REFRESH_UI_INTERVAL - diff;
 199			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 200			mRefreshUiHandler.postDelayed(mRefreshUiRunnable, next);
 201		}
 202	}
 203
 204	abstract protected void refreshUiReal();
 205
 206	@Override
 207	protected void onStart() {
 208		super.onStart();
 209		if (!xmppConnectionServiceBound) {
 210			if (this.mSkipBackgroundBinding) {
 211				Log.d(Config.LOGTAG,"skipping background binding");
 212			} else {
 213				connectToBackend();
 214			}
 215		} else {
 216			if (!registeredListeners) {
 217				this.registerListeners();
 218				this.registeredListeners = true;
 219			}
 220			this.onBackendConnected();
 221		}
 222	}
 223
 224	@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
 225	protected boolean shouldRegisterListeners() {
 226		if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
 227			return !isDestroyed() && !isFinishing();
 228		} else {
 229			return !isFinishing();
 230		}
 231	}
 232
 233	public void connectToBackend() {
 234		Intent intent = new Intent(this, XmppConnectionService.class);
 235		intent.setAction("ui");
 236		startService(intent);
 237		bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
 238	}
 239
 240	@Override
 241	protected void onStop() {
 242		super.onStop();
 243		if (xmppConnectionServiceBound) {
 244			if (registeredListeners) {
 245				this.unregisterListeners();
 246				this.registeredListeners = false;
 247			}
 248			unbindService(mConnection);
 249			xmppConnectionServiceBound = false;
 250		}
 251	}
 252
 253	protected void hideKeyboard() {
 254		final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 255		View focus = getCurrentFocus();
 256		if (focus != null && inputManager != null) {
 257			inputManager.hideSoftInputFromWindow(focus.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
 258		}
 259	}
 260
 261	public boolean hasPgp() {
 262		return xmppConnectionService.getPgpEngine() != null;
 263	}
 264
 265	public void showInstallPgpDialog() {
 266		Builder builder = new AlertDialog.Builder(this);
 267		builder.setTitle(getString(R.string.openkeychain_required));
 268		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 269		builder.setMessage(getText(R.string.openkeychain_required_long));
 270		builder.setNegativeButton(getString(R.string.cancel), null);
 271		builder.setNeutralButton(getString(R.string.restart),
 272				(dialog, which) -> {
 273					if (xmppConnectionServiceBound) {
 274						unbindService(mConnection);
 275						xmppConnectionServiceBound = false;
 276					}
 277					stopService(new Intent(XmppActivity.this,
 278							XmppConnectionService.class));
 279					finish();
 280				});
 281		builder.setPositiveButton(getString(R.string.install),
 282				(dialog, which) -> {
 283					Uri uri = Uri
 284							.parse("market://details?id=org.sufficientlysecure.keychain");
 285					Intent marketIntent = new Intent(Intent.ACTION_VIEW,
 286							uri);
 287					PackageManager manager = getApplicationContext()
 288							.getPackageManager();
 289					List<ResolveInfo> infos = manager
 290							.queryIntentActivities(marketIntent, 0);
 291					if (infos.size() > 0) {
 292						startActivity(marketIntent);
 293					} else {
 294						uri = Uri.parse("http://www.openkeychain.org/");
 295						Intent browserIntent = new Intent(
 296								Intent.ACTION_VIEW, uri);
 297						startActivity(browserIntent);
 298					}
 299					finish();
 300				});
 301		builder.create().show();
 302	}
 303
 304	abstract void onBackendConnected();
 305
 306	protected void registerListeners() {
 307		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 308			this.xmppConnectionService.setOnConversationListChangedListener((XmppConnectionService.OnConversationUpdate) this);
 309		}
 310		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 311			this.xmppConnectionService.setOnAccountListChangedListener((XmppConnectionService.OnAccountUpdate) this);
 312		}
 313		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 314			this.xmppConnectionService.setOnCaptchaRequestedListener((XmppConnectionService.OnCaptchaRequested) this);
 315		}
 316		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 317			this.xmppConnectionService.setOnRosterUpdateListener((XmppConnectionService.OnRosterUpdate) this);
 318		}
 319		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 320			this.xmppConnectionService.setOnMucRosterUpdateListener((XmppConnectionService.OnMucRosterUpdate) this);
 321		}
 322		if (this instanceof OnUpdateBlocklist) {
 323			this.xmppConnectionService.setOnUpdateBlocklistListener((OnUpdateBlocklist) this);
 324		}
 325		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 326			this.xmppConnectionService.setOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 327		}
 328		if (this instanceof OnKeyStatusUpdated) {
 329			this.xmppConnectionService.setOnKeyStatusUpdatedListener((OnKeyStatusUpdated) this);
 330		}
 331	}
 332
 333	protected void unregisterListeners() {
 334		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 335			this.xmppConnectionService.removeOnConversationListChangedListener();
 336		}
 337		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 338			this.xmppConnectionService.removeOnAccountListChangedListener();
 339		}
 340		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 341			this.xmppConnectionService.removeOnCaptchaRequestedListener();
 342		}
 343		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 344			this.xmppConnectionService.removeOnRosterUpdateListener();
 345		}
 346		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 347			this.xmppConnectionService.removeOnMucRosterUpdateListener();
 348		}
 349		if (this instanceof OnUpdateBlocklist) {
 350			this.xmppConnectionService.removeOnUpdateBlocklistListener();
 351		}
 352		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 353			this.xmppConnectionService.removeOnShowErrorToastListener();
 354		}
 355		if (this instanceof OnKeyStatusUpdated) {
 356			this.xmppConnectionService.removeOnNewKeysAvailableListener();
 357		}
 358	}
 359
 360	@Override
 361	public boolean onOptionsItemSelected(final MenuItem item) {
 362		switch (item.getItemId()) {
 363			case R.id.action_settings:
 364				startActivity(new Intent(this, SettingsActivity.class));
 365				break;
 366			case R.id.action_accounts:
 367				startActivity(new Intent(this, ManageAccountActivity.class));
 368				break;
 369			case android.R.id.home:
 370				finish();
 371				break;
 372			case R.id.action_show_qr_code:
 373				showQrCode();
 374				break;
 375		}
 376		return super.onOptionsItemSelected(item);
 377	}
 378
 379	public void selectPresence(final Conversation conversation, final PresenceSelector.OnPresenceSelected listener) {
 380		final Contact contact = conversation.getContact();
 381		if (!contact.showInRoster()) {
 382			showAddToRosterDialog(conversation.getContact());
 383		} else {
 384			final Presences presences = contact.getPresences();
 385			if (presences.size() == 0) {
 386				if (!contact.getOption(Contact.Options.TO)
 387						&& !contact.getOption(Contact.Options.ASKING)
 388						&& contact.getAccount().getStatus() == Account.State.ONLINE) {
 389					showAskForPresenceDialog(contact);
 390				} else if (!contact.getOption(Contact.Options.TO)
 391						|| !contact.getOption(Contact.Options.FROM)) {
 392					PresenceSelector.warnMutualPresenceSubscription(this, conversation, listener);
 393				} else {
 394					conversation.setNextCounterpart(null);
 395					listener.onPresenceSelected();
 396				}
 397			} else if (presences.size() == 1) {
 398				String presence = presences.toResourceArray()[0];
 399				try {
 400					conversation.setNextCounterpart(Jid.of(contact.getJid().getLocal(), contact.getJid().getDomain(), presence));
 401				} catch (IllegalArgumentException e) {
 402					conversation.setNextCounterpart(null);
 403				}
 404				listener.onPresenceSelected();
 405			} else {
 406				PresenceSelector.showPresenceSelectionDialog(this, conversation, listener);
 407			}
 408		}
 409	}
 410
 411	@Override
 412	protected void onCreate(Bundle savedInstanceState) {
 413		super.onCreate(savedInstanceState);
 414		metrics = getResources().getDisplayMetrics();
 415		ExceptionHelper.init(getApplicationContext());
 416		this.isCameraFeatureAvailable = getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA);
 417
 418		mColorRed = ContextCompat.getColor(this, R.color.red800);
 419		mColorOrange = ContextCompat.getColor(this, R.color.orange500);
 420		mColorGreen = ContextCompat.getColor(this, R.color.green500);
 421
 422		this.mTheme = findTheme();
 423		setTheme(this.mTheme);
 424
 425		this.mUsingEnterKey = usingEnterKey();
 426		mUseSubject = getPreferences().getBoolean("use_subject", getResources().getBoolean(R.bool.use_subject));
 427	}
 428
 429	protected boolean isCameraFeatureAvailable() {
 430		return this.isCameraFeatureAvailable;
 431	}
 432
 433	public boolean isDarkTheme() {
 434		return ThemeHelper.isDark(mTheme);
 435	}
 436
 437	public int getThemeResource(int r_attr_name, int r_drawable_def) {
 438		int[] attrs = {r_attr_name};
 439		TypedArray ta = this.getTheme().obtainStyledAttributes(attrs);
 440
 441		int res = ta.getResourceId(0, r_drawable_def);
 442		ta.recycle();
 443
 444		return res;
 445	}
 446
 447	protected boolean isOptimizingBattery() {
 448		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 449			final PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
 450			return pm != null
 451					&& !pm.isIgnoringBatteryOptimizations(getPackageName());
 452		} else {
 453			return false;
 454		}
 455	}
 456
 457	protected boolean isAffectedByDataSaver() {
 458		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 459			final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 460			return cm != null
 461					&& cm.isActiveNetworkMetered()
 462					&& cm.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED;
 463		} else {
 464			return false;
 465		}
 466	}
 467
 468	protected boolean usingEnterKey() {
 469		return getPreferences().getBoolean("display_enter_key", getResources().getBoolean(R.bool.display_enter_key));
 470	}
 471
 472	protected SharedPreferences getPreferences() {
 473		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
 474	}
 475
 476	public boolean useSubjectToIdentifyConference() {
 477		return mUseSubject;
 478	}
 479
 480	public void switchToConversation(Conversation conversation) {
 481		switchToConversation(conversation, null, false);
 482	}
 483
 484	public void switchToConversation(Conversation conversation, String text,
 485	                                 boolean newTask) {
 486		switchToConversation(conversation, text, null, false, newTask);
 487	}
 488
 489	public void highlightInMuc(Conversation conversation, String nick) {
 490		switchToConversation(conversation, null, nick, false, false);
 491	}
 492
 493	public void privateMsgInMuc(Conversation conversation, String nick) {
 494		switchToConversation(conversation, null, nick, true, false);
 495	}
 496
 497	private void switchToConversation(Conversation conversation, String text, String nick, boolean pm, boolean newTask) {
 498		Intent intent = new Intent(this, ConversationsActivity.class);
 499		intent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
 500		intent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
 501		if (text != null) {
 502			intent.putExtra(ConversationsActivity.EXTRA_TEXT, text);
 503		}
 504		if (nick != null) {
 505			intent.putExtra(ConversationsActivity.EXTRA_NICK, nick);
 506			intent.putExtra(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, pm);
 507		}
 508		if (newTask) {
 509			intent.setFlags(intent.getFlags()
 510					| Intent.FLAG_ACTIVITY_NEW_TASK
 511					| Intent.FLAG_ACTIVITY_SINGLE_TOP);
 512		} else {
 513			intent.setFlags(intent.getFlags()
 514					| Intent.FLAG_ACTIVITY_CLEAR_TOP);
 515		}
 516		startActivity(intent);
 517		finish();
 518	}
 519
 520	public void switchToContactDetails(Contact contact) {
 521		switchToContactDetails(contact, null);
 522	}
 523
 524	public void switchToContactDetails(Contact contact, String messageFingerprint) {
 525		Intent intent = new Intent(this, ContactDetailsActivity.class);
 526		intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 527		intent.putExtra(EXTRA_ACCOUNT, contact.getAccount().getJid().asBareJid().toString());
 528		intent.putExtra("contact", contact.getJid().toString());
 529		intent.putExtra("fingerprint", messageFingerprint);
 530		startActivity(intent);
 531	}
 532
 533	public void switchToAccount(Account account) {
 534		switchToAccount(account, false);
 535	}
 536
 537	public void switchToAccount(Account account, boolean init) {
 538		Intent intent = new Intent(this, EditAccountActivity.class);
 539		intent.putExtra("jid", account.getJid().asBareJid().toString());
 540		intent.putExtra("init", init);
 541		if (init) {
 542			intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION);
 543		}
 544		startActivity(intent);
 545		if (init) {
 546			overridePendingTransition(0, 0);
 547		}
 548	}
 549
 550	protected void delegateUriPermissionsToService(Uri uri) {
 551		Intent intent = new Intent(this,XmppConnectionService.class);
 552		intent.setAction(Intent.ACTION_SEND);
 553		intent.setData(uri);
 554		intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 555		startService(intent);
 556	}
 557
 558	protected void inviteToConversation(Conversation conversation) {
 559		startActivityForResult(ChooseContactActivity.create(this,conversation), REQUEST_INVITE_TO_CONVERSATION);
 560	}
 561
 562	protected void announcePgp(final Account account, final Conversation conversation, Intent intent, final Runnable onSuccess) {
 563		if (account.getPgpId() == 0) {
 564			choosePgpSignId(account);
 565		} else {
 566			String status = null;
 567			if (manuallyChangePresence()) {
 568				status = account.getPresenceStatusMessage();
 569			}
 570			if (status == null) {
 571				status = "";
 572			}
 573			xmppConnectionService.getPgpEngine().generateSignature(intent, account, status, new UiCallback<String>() {
 574
 575				@Override
 576				public void userInputRequried(PendingIntent pi, String signature) {
 577					try {
 578						startIntentSenderForResult(pi.getIntentSender(), REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
 579					} catch (final SendIntentException ignored) {
 580					}
 581				}
 582
 583				@Override
 584				public void success(String signature) {
 585					account.setPgpSignature(signature);
 586					xmppConnectionService.databaseBackend.updateAccount(account);
 587					xmppConnectionService.sendPresence(account);
 588					if (conversation != null) {
 589						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 590						xmppConnectionService.updateConversation(conversation);
 591						refreshUi();
 592					}
 593					if (onSuccess != null) {
 594						runOnUiThread(onSuccess);
 595					}
 596				}
 597
 598				@Override
 599				public void error(int error, String signature) {
 600					if (error == 0) {
 601						account.setPgpSignId(0);
 602						account.unsetPgpSignature();
 603						xmppConnectionService.databaseBackend.updateAccount(account);
 604						choosePgpSignId(account);
 605					} else {
 606						displayErrorDialog(error);
 607					}
 608				}
 609			});
 610		}
 611	}
 612
 613	public static void configureActionBar(ActionBar actionBar) {
 614		if (actionBar != null) {
 615			actionBar.setHomeButtonEnabled(true);
 616			actionBar.setDisplayHomeAsUpEnabled(true);
 617		}
 618	}
 619
 620	protected boolean noAccountUsesPgp() {
 621		if (!hasPgp()) {
 622			return true;
 623		}
 624		for (Account account : xmppConnectionService.getAccounts()) {
 625			if (account.getPgpId() != 0) {
 626				return false;
 627			}
 628		}
 629		return true;
 630	}
 631
 632	@SuppressWarnings("deprecation")
 633	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 634	protected void setListItemBackgroundOnView(View view) {
 635		int sdk = android.os.Build.VERSION.SDK_INT;
 636		if (sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
 637			view.setBackgroundDrawable(getResources().getDrawable(R.drawable.greybackground));
 638		} else {
 639			view.setBackground(getResources().getDrawable(R.drawable.greybackground));
 640		}
 641	}
 642
 643	protected void choosePgpSignId(Account account) {
 644		xmppConnectionService.getPgpEngine().chooseKey(account, new UiCallback<Account>() {
 645			@Override
 646			public void success(Account account1) {
 647			}
 648
 649			@Override
 650			public void error(int errorCode, Account object) {
 651
 652			}
 653
 654			@Override
 655			public void userInputRequried(PendingIntent pi, Account object) {
 656				try {
 657					startIntentSenderForResult(pi.getIntentSender(),
 658							REQUEST_CHOOSE_PGP_ID, null, 0, 0, 0);
 659				} catch (final SendIntentException ignored) {
 660				}
 661			}
 662		});
 663	}
 664
 665	protected void displayErrorDialog(final int errorCode) {
 666		runOnUiThread(() -> {
 667			Builder builder = new Builder(XmppActivity.this);
 668			builder.setIconAttribute(android.R.attr.alertDialogIcon);
 669			builder.setTitle(getString(R.string.error));
 670			builder.setMessage(errorCode);
 671			builder.setNeutralButton(R.string.accept, null);
 672			builder.create().show();
 673		});
 674
 675	}
 676
 677	protected void showAddToRosterDialog(final Contact contact) {
 678		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 679		builder.setTitle(contact.getJid().toString());
 680		builder.setMessage(getString(R.string.not_in_roster));
 681		builder.setNegativeButton(getString(R.string.cancel), null);
 682		builder.setPositiveButton(getString(R.string.add_contact), (dialog, which) -> xmppConnectionService.createContact(contact,true));
 683		builder.create().show();
 684	}
 685
 686	private void showAskForPresenceDialog(final Contact contact) {
 687		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 688		builder.setTitle(contact.getJid().toString());
 689		builder.setMessage(R.string.request_presence_updates);
 690		builder.setNegativeButton(R.string.cancel, null);
 691		builder.setPositiveButton(R.string.request_now,
 692				(dialog, which) -> {
 693					if (xmppConnectionServiceBound) {
 694						xmppConnectionService.sendPresencePacket(contact
 695								.getAccount(), xmppConnectionService
 696								.getPresenceGenerator()
 697								.requestPresenceUpdatesFrom(contact));
 698					}
 699				});
 700		builder.create().show();
 701	}
 702
 703	protected void quickEdit(String previousValue, int hint, OnValueEdited callback) {
 704		quickEdit(previousValue, callback, hint, false);
 705	}
 706
 707	protected void quickPasswordEdit(String previousValue, OnValueEdited callback) {
 708		quickEdit(previousValue, callback, R.string.password, true);
 709	}
 710
 711	@SuppressLint("InflateParams")
 712	private void quickEdit(final String previousValue,
 713	                       final OnValueEdited callback,
 714	                       final int hint,
 715	                       boolean password) {
 716		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 717		View view = getLayoutInflater().inflate(R.layout.quickedit, null);
 718		final EditText editor = view.findViewById(R.id.editor);
 719		if (password) {
 720			editor.setInputType(InputType.TYPE_CLASS_TEXT
 721					| InputType.TYPE_TEXT_VARIATION_PASSWORD);
 722		}
 723		builder.setPositiveButton(R.string.accept, null);
 724		if (hint != 0) {
 725			editor.setHint(hint);
 726		}
 727		editor.requestFocus();
 728		editor.setText("");
 729		if (previousValue != null) {
 730			editor.getText().append(previousValue);
 731		}
 732		builder.setView(view);
 733		builder.setNegativeButton(R.string.cancel, null);
 734		final AlertDialog dialog = builder.create();
 735		dialog.show();
 736		View.OnClickListener clickListener = v -> {
 737			String value = editor.getText().toString();
 738			if (!value.equals(previousValue) && value.trim().length() > 0) {
 739				String error = callback.onValueEdited(value);
 740				if (error != null) {
 741					editor.setError(error);
 742					return;
 743				}
 744			}
 745			dialog.dismiss();
 746		};
 747		dialog.getButton(DialogInterface.BUTTON_POSITIVE).setOnClickListener(clickListener);
 748	}
 749
 750	protected boolean hasStoragePermission(int requestCode) {
 751		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 752			if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 753				requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
 754				return false;
 755			} else {
 756				return true;
 757			}
 758		} else {
 759			return true;
 760		}
 761	}
 762
 763	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
 764		super.onActivityResult(requestCode, resultCode, data);
 765		if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 766			mPendingConferenceInvite = ConferenceInvite.parse(data);
 767			if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 768				if (mPendingConferenceInvite.execute(this)) {
 769					mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 770					mToast.show();
 771				}
 772				mPendingConferenceInvite = null;
 773			}
 774		}
 775	}
 776
 777	public int getWarningTextColor() {
 778		return this.mColorRed;
 779	}
 780
 781	public int getOnlineColor() {
 782		return this.mColorGreen;
 783	}
 784
 785	public int getPixel(int dp) {
 786		DisplayMetrics metrics = getResources().getDisplayMetrics();
 787		return ((int) (dp * metrics.density));
 788	}
 789
 790	public boolean copyTextToClipboard(String text, int labelResId) {
 791		ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 792		String label = getResources().getString(labelResId);
 793		if (mClipBoardManager != null) {
 794			ClipData mClipData = ClipData.newPlainText(label, text);
 795			mClipBoardManager.setPrimaryClip(mClipData);
 796			return true;
 797		}
 798		return false;
 799	}
 800
 801	protected boolean neverCompressPictures() {
 802		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression)).equals("never");
 803	}
 804
 805	protected boolean manuallyChangePresence() {
 806		return getPreferences().getBoolean(SettingsActivity.MANUALLY_CHANGE_PRESENCE, getResources().getBoolean(R.bool.manually_change_presence));
 807	}
 808
 809	protected String getShareableUri() {
 810		return getShareableUri(false);
 811	}
 812
 813	protected String getShareableUri(boolean http) {
 814		return null;
 815	}
 816
 817	protected void shareLink(boolean http) {
 818		String uri = getShareableUri(http);
 819		if (uri == null || uri.isEmpty()) {
 820			return;
 821		}
 822		Intent intent = new Intent(Intent.ACTION_SEND);
 823		intent.setType("text/plain");
 824		intent.putExtra(Intent.EXTRA_TEXT, getShareableUri(http));
 825		try {
 826			startActivity(Intent.createChooser(intent, getText(R.string.share_uri_with)));
 827		} catch (ActivityNotFoundException e) {
 828			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 829		}
 830	}
 831
 832	protected void launchOpenKeyChain(long keyId) {
 833		PgpEngine pgp = XmppActivity.this.xmppConnectionService.getPgpEngine();
 834		try {
 835			startIntentSenderForResult(
 836					pgp.getIntentForKey(keyId).getIntentSender(), 0, null, 0,
 837					0, 0);
 838		} catch (Throwable e) {
 839			Toast.makeText(XmppActivity.this, R.string.openpgp_error, Toast.LENGTH_SHORT).show();
 840		}
 841	}
 842
 843	@Override
 844	public void onResume() {
 845		super.onResume();
 846	}
 847
 848	protected int findTheme() {
 849		return ThemeHelper.find(this);
 850	}
 851
 852	@Override
 853	public void onPause() {
 854		super.onPause();
 855	}
 856
 857	@Override
 858	public boolean onMenuOpened(int id, Menu menu) {
 859		if(id == AppCompatDelegate.FEATURE_SUPPORT_ACTION_BAR && menu != null) {
 860			MenuDoubleTabUtil.recordMenuOpen();
 861		}
 862		return super.onMenuOpened(id, menu);
 863	}
 864
 865	protected void showQrCode() {
 866		showQrCode(getShareableUri());
 867	}
 868
 869	protected void showQrCode(final String uri) {
 870		if (uri == null || uri.isEmpty()) {
 871			return;
 872		}
 873		Point size = new Point();
 874		getWindowManager().getDefaultDisplay().getSize(size);
 875		final int width = (size.x < size.y ? size.x : size.y);
 876		Bitmap bitmap = BarcodeProvider.create2dBarcodeBitmap(uri, width);
 877		ImageView view = new ImageView(this);
 878		view.setBackgroundColor(Color.WHITE);
 879		view.setImageBitmap(bitmap);
 880		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 881		builder.setView(view);
 882		builder.create().show();
 883	}
 884
 885	protected Account extractAccount(Intent intent) {
 886		String jid = intent != null ? intent.getStringExtra(EXTRA_ACCOUNT) : null;
 887		try {
 888			return jid != null ? xmppConnectionService.findAccountByJid(Jid.of(jid)) : null;
 889		} catch (IllegalArgumentException e) {
 890			return null;
 891		}
 892	}
 893
 894	public AvatarService avatarService() {
 895		return xmppConnectionService.getAvatarService();
 896	}
 897
 898	public void loadBitmap(Message message, ImageView imageView) {
 899		Bitmap bm;
 900		try {
 901			bm = xmppConnectionService.getFileBackend().getThumbnail(message, (int) (metrics.density * 288), true);
 902		} catch (FileNotFoundException e) {
 903			bm = null;
 904		}
 905		if (bm != null) {
 906			cancelPotentialWork(message, imageView);
 907			imageView.setImageBitmap(bm);
 908			imageView.setBackgroundColor(0x00000000);
 909		} else {
 910			if (cancelPotentialWork(message, imageView)) {
 911				imageView.setBackgroundColor(0xff333333);
 912				imageView.setImageDrawable(null);
 913				final BitmapWorkerTask task = new BitmapWorkerTask(this, imageView);
 914				final AsyncDrawable asyncDrawable = new AsyncDrawable(
 915						getResources(), null, task);
 916				imageView.setImageDrawable(asyncDrawable);
 917				try {
 918					task.execute(message);
 919				} catch (final RejectedExecutionException ignored) {
 920					ignored.printStackTrace();
 921				}
 922			}
 923		}
 924	}
 925
 926	protected interface OnValueEdited {
 927		String onValueEdited(String value);
 928	}
 929
 930	public static class ConferenceInvite {
 931		private String uuid;
 932		private List<Jid> jids = new ArrayList<>();
 933
 934		public static ConferenceInvite parse(Intent data) {
 935			ConferenceInvite invite = new ConferenceInvite();
 936			invite.uuid = data.getStringExtra("conversation");
 937			if (invite.uuid == null) {
 938				return null;
 939			}
 940			try {
 941				if (data.getBooleanExtra("multiple", false)) {
 942					String[] toAdd = data.getStringArrayExtra("contacts");
 943					for (String item : toAdd) {
 944						invite.jids.add(Jid.of(item));
 945					}
 946				} else {
 947					invite.jids.add(Jid.of(data.getStringExtra("contact")));
 948				}
 949			} catch (final IllegalArgumentException ignored) {
 950				return null;
 951			}
 952			return invite;
 953		}
 954
 955		public boolean execute(XmppActivity activity) {
 956			XmppConnectionService service = activity.xmppConnectionService;
 957			Conversation conversation = service.findConversationByUuid(this.uuid);
 958			if (conversation == null) {
 959				return false;
 960			}
 961			if (conversation.getMode() == Conversation.MODE_MULTI) {
 962				for (Jid jid : jids) {
 963					service.invite(conversation, jid);
 964				}
 965				return false;
 966			} else {
 967				jids.add(conversation.getJid().asBareJid());
 968				return service.createAdhocConference(conversation.getAccount(), null, jids, activity.adhocCallback);
 969			}
 970		}
 971	}
 972
 973	static class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
 974		private final WeakReference<ImageView> imageViewReference;
 975		private final WeakReference<XmppActivity> activity;
 976		private Message message = null;
 977
 978		private BitmapWorkerTask(XmppActivity activity, ImageView imageView) {
 979			this.activity = new WeakReference<>(activity);
 980			this.imageViewReference = new WeakReference<>(imageView);
 981		}
 982
 983		@Override
 984		protected Bitmap doInBackground(Message... params) {
 985			if (isCancelled()) {
 986				return null;
 987			}
 988			message = params[0];
 989			try {
 990				XmppActivity activity = this.activity.get();
 991				if (activity != null && activity.xmppConnectionService != null) {
 992					return activity.xmppConnectionService.getFileBackend().getThumbnail(message, (int) (activity.metrics.density * 288), false);
 993				} else {
 994					return null;
 995				}
 996			} catch (FileNotFoundException e) {
 997				return null;
 998			}
 999		}
1000
1001		@Override
1002		protected void onPostExecute(Bitmap bitmap) {
1003			if (bitmap != null && !isCancelled()) {
1004				final ImageView imageView = imageViewReference.get();
1005				if (imageView != null) {
1006					imageView.setImageBitmap(bitmap);
1007					imageView.setBackgroundColor(0x00000000);
1008				}
1009			}
1010		}
1011	}
1012
1013	private static class AsyncDrawable extends BitmapDrawable {
1014		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1015
1016		private AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
1017			super(res, bitmap);
1018			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
1019		}
1020
1021		private BitmapWorkerTask getBitmapWorkerTask() {
1022			return bitmapWorkerTaskReference.get();
1023		}
1024	}
1025}