1package eu.siacs.conversations.ui;
   2
   3import android.annotation.SuppressLint;
   4import android.app.ActionBar;
   5import android.app.AlertDialog;
   6import android.app.FragmentTransaction;
   7import android.app.PendingIntent;
   8import android.content.ActivityNotFoundException;
   9import android.content.ClipData;
  10import android.content.DialogInterface;
  11import android.content.DialogInterface.OnClickListener;
  12import android.content.Intent;
  13import android.content.IntentSender.SendIntentException;
  14import android.content.pm.PackageManager;
  15import android.net.Uri;
  16import android.os.Build;
  17import android.os.Bundle;
  18import android.os.Handler;
  19import android.provider.MediaStore;
  20import android.provider.Settings;
  21import android.support.v4.widget.SlidingPaneLayout;
  22import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
  23import android.util.Log;
  24import android.util.Pair;
  25import android.view.Gravity;
  26import android.view.KeyEvent;
  27import android.view.Menu;
  28import android.view.MenuItem;
  29import android.view.Surface;
  30import android.view.View;
  31import android.widget.AdapterView;
  32import android.widget.AdapterView.OnItemClickListener;
  33import android.widget.ArrayAdapter;
  34import android.widget.CheckBox;
  35import android.widget.PopupMenu;
  36import android.widget.PopupMenu.OnMenuItemClickListener;
  37import android.widget.Toast;
  38
  39import net.java.otr4j.session.SessionStatus;
  40
  41import org.openintents.openpgp.util.OpenPgpApi;
  42
  43import java.util.ArrayList;
  44import java.util.Iterator;
  45import java.util.List;
  46import java.util.concurrent.atomic.AtomicBoolean;
  47
  48import de.timroes.android.listview.EnhancedListView;
  49import eu.siacs.conversations.Config;
  50import eu.siacs.conversations.R;
  51import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  52import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  53import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
  54import eu.siacs.conversations.entities.Account;
  55import eu.siacs.conversations.entities.Blockable;
  56import eu.siacs.conversations.entities.Contact;
  57import eu.siacs.conversations.entities.Conversation;
  58import eu.siacs.conversations.entities.Message;
  59import eu.siacs.conversations.entities.Transferable;
  60import eu.siacs.conversations.persistance.FileBackend;
  61import eu.siacs.conversations.services.XmppConnectionService;
  62import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
  63import eu.siacs.conversations.services.XmppConnectionService.OnConversationUpdate;
  64import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  65import eu.siacs.conversations.ui.adapter.ConversationAdapter;
  66import eu.siacs.conversations.utils.ExceptionHelper;
  67import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  68import eu.siacs.conversations.xmpp.XmppConnection;
  69import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  70import eu.siacs.conversations.xmpp.jid.Jid;
  71
  72public class ConversationActivity extends XmppActivity
  73	implements OnAccountUpdate, OnConversationUpdate, OnRosterUpdate, OnUpdateBlocklist, XmppConnectionService.OnShowErrorToast {
  74
  75	public static final String ACTION_VIEW_CONVERSATION = "eu.siacs.conversations.action.VIEW";
  76	public static final String CONVERSATION = "conversationUuid";
  77	public static final String EXTRA_DOWNLOAD_UUID = "eu.siacs.conversations.download_uuid";
  78	public static final String TEXT = "text";
  79	public static final String NICK = "nick";
  80	public static final String PRIVATE_MESSAGE = "pm";
  81
  82	public static final int REQUEST_SEND_MESSAGE = 0x0201;
  83	public static final int REQUEST_DECRYPT_PGP = 0x0202;
  84	public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
  85	public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
  86	public static final int REQUEST_TRUST_KEYS_MENU = 0x0209;
  87	public static final int REQUEST_START_DOWNLOAD = 0x0210;
  88	public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
  89	public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
  90	public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
  91	public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
  92	public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
  93	public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
  94	private static final String STATE_OPEN_CONVERSATION = "state_open_conversation";
  95	private static final String STATE_PANEL_OPEN = "state_panel_open";
  96	private static final String STATE_PENDING_URI = "state_pending_uri";
  97	private static final String STATE_FIRST_VISIBLE = "first_visible";
  98	private static final String STATE_OFFSET_FROM_TOP = "offset_from_top";
  99
 100	private String mOpenConversation = null;
 101	private boolean mPanelOpen = true;
 102	private Pair<Integer,Integer> mScrollPosition = null;
 103	final private List<Uri> mPendingImageUris = new ArrayList<>();
 104	final private List<Uri> mPendingFileUris = new ArrayList<>();
 105	private Uri mPendingGeoUri = null;
 106	private boolean forbidProcessingPendings = false;
 107	private Message mPendingDownloadableMessage = null;
 108
 109	private boolean conversationWasSelectedByKeyboard = false;
 110
 111	private View mContentView;
 112
 113	private List<Conversation> conversationList = new ArrayList<>();
 114	private Conversation swipedConversation = null;
 115	private Conversation mSelectedConversation = null;
 116	private EnhancedListView listView;
 117	private ConversationFragment mConversationFragment;
 118
 119	private ArrayAdapter<Conversation> listAdapter;
 120
 121	private boolean mActivityPaused = false;
 122	private AtomicBoolean mRedirected = new AtomicBoolean(false);
 123	private Pair<Integer, Intent> mPostponedActivityResult;
 124	private boolean mUnprocessedNewIntent = false;
 125
 126	public Conversation getSelectedConversation() {
 127		return this.mSelectedConversation;
 128	}
 129
 130	public void setSelectedConversation(Conversation conversation) {
 131		this.mSelectedConversation = conversation;
 132	}
 133
 134	public void showConversationsOverview() {
 135		if (mContentView instanceof SlidingPaneLayout) {
 136			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 137			mSlidingPaneLayout.openPane();
 138		}
 139	}
 140
 141	@Override
 142	protected String getShareableUri() {
 143		Conversation conversation = getSelectedConversation();
 144		if (conversation != null) {
 145			return conversation.getAccount().getShareableUri();
 146		} else {
 147			return "";
 148		}
 149	}
 150
 151	public void hideConversationsOverview() {
 152		if (mContentView instanceof SlidingPaneLayout) {
 153			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 154			mSlidingPaneLayout.closePane();
 155		}
 156	}
 157
 158	public boolean isConversationsOverviewHideable() {
 159		return mContentView instanceof SlidingPaneLayout;
 160	}
 161
 162	public boolean isConversationsOverviewVisable() {
 163		if (mContentView instanceof SlidingPaneLayout) {
 164			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 165			return mSlidingPaneLayout.isOpen();
 166		} else {
 167			return true;
 168		}
 169	}
 170
 171	@Override
 172	protected void onCreate(final Bundle savedInstanceState) {
 173		super.onCreate(savedInstanceState);
 174		if (savedInstanceState != null) {
 175			mOpenConversation = savedInstanceState.getString(STATE_OPEN_CONVERSATION, null);
 176			mPanelOpen = savedInstanceState.getBoolean(STATE_PANEL_OPEN, true);
 177			int pos = savedInstanceState.getInt(STATE_FIRST_VISIBLE, -1);
 178			int offset = savedInstanceState.getInt(STATE_OFFSET_FROM_TOP, 1);
 179			if (pos >= 0 && offset <= 0) {
 180				Log.d(Config.LOGTAG,"retrieved scroll position from instanceState "+pos+":"+offset);
 181				mScrollPosition = new Pair<>(pos,offset);
 182			} else {
 183				mScrollPosition = null;
 184			}
 185			String pending = savedInstanceState.getString(STATE_PENDING_URI, null);
 186			if (pending != null) {
 187				Log.d(Config.LOGTAG,"ConversationsActivity.onCreate() - restoring pending image uri");
 188				mPendingImageUris.clear();
 189				mPendingImageUris.add(Uri.parse(pending));
 190			}
 191		}
 192
 193		setContentView(R.layout.fragment_conversations_overview);
 194
 195		this.mConversationFragment = new ConversationFragment();
 196		FragmentTransaction transaction = getFragmentManager().beginTransaction();
 197		transaction.replace(R.id.selected_conversation, this.mConversationFragment, "conversation");
 198		transaction.commit();
 199
 200		listView = (EnhancedListView) findViewById(R.id.list);
 201		this.listAdapter = new ConversationAdapter(this, conversationList);
 202		listView.setAdapter(this.listAdapter);
 203
 204		if (getActionBar() != null) {
 205			getActionBar().setDisplayHomeAsUpEnabled(false);
 206			getActionBar().setHomeButtonEnabled(false);
 207		}
 208
 209		listView.setOnItemClickListener(new OnItemClickListener() {
 210
 211			@Override
 212			public void onItemClick(AdapterView<?> arg0, View clickedView,
 213									int position, long arg3) {
 214				if (getSelectedConversation() != conversationList.get(position)) {
 215					setSelectedConversation(conversationList.get(position));
 216					ConversationActivity.this.mConversationFragment.reInit(getSelectedConversation());
 217					conversationWasSelectedByKeyboard = false;
 218				}
 219				hideConversationsOverview();
 220				openConversation();
 221			}
 222		});
 223
 224		listView.setDismissCallback(new EnhancedListView.OnDismissCallback() {
 225
 226			@Override
 227			public EnhancedListView.Undoable onDismiss(final EnhancedListView enhancedListView, final int position) {
 228
 229				final int index = listView.getFirstVisiblePosition();
 230				View v = listView.getChildAt(0);
 231				final int top = (v == null) ? 0 : (v.getTop() - listView.getPaddingTop());
 232
 233				try {
 234					swipedConversation = listAdapter.getItem(position);
 235				} catch (IndexOutOfBoundsException e) {
 236					return null;
 237				}
 238				listAdapter.remove(swipedConversation);
 239				xmppConnectionService.markRead(swipedConversation);
 240
 241				final boolean formerlySelected = (getSelectedConversation() == swipedConversation);
 242				if (position == 0 && listAdapter.getCount() == 0) {
 243					endConversation(swipedConversation, false, true);
 244					return null;
 245				} else if (formerlySelected) {
 246					setSelectedConversation(listAdapter.getItem(0));
 247					ConversationActivity.this.mConversationFragment
 248							.reInit(getSelectedConversation());
 249				}
 250
 251				return new EnhancedListView.Undoable() {
 252
 253					@Override
 254					public void undo() {
 255						listAdapter.insert(swipedConversation, position);
 256						if (formerlySelected) {
 257							setSelectedConversation(swipedConversation);
 258							ConversationActivity.this.mConversationFragment
 259									.reInit(getSelectedConversation());
 260						}
 261						swipedConversation = null;
 262						listView.setSelectionFromTop(index + (listView.getChildCount() < position ? 1 : 0), top);
 263					}
 264
 265					@Override
 266					public void discard() {
 267						if (!swipedConversation.isRead()
 268								&& swipedConversation.getMode() == Conversation.MODE_SINGLE) {
 269							swipedConversation = null;
 270							return;
 271						}
 272						endConversation(swipedConversation, false, false);
 273						swipedConversation = null;
 274					}
 275
 276					@Override
 277					public String getTitle() {
 278						if (swipedConversation.getMode() == Conversation.MODE_MULTI) {
 279							return getResources().getString(R.string.title_undo_swipe_out_muc);
 280						} else {
 281							return getResources().getString(R.string.title_undo_swipe_out_conversation);
 282						}
 283					}
 284				};
 285			}
 286		});
 287		listView.enableSwipeToDismiss();
 288		listView.setSwipingLayout(R.id.swipeable_item);
 289		listView.setUndoStyle(EnhancedListView.UndoStyle.SINGLE_POPUP);
 290		listView.setUndoHideDelay(5000);
 291		listView.setRequireTouchBeforeDismiss(false);
 292
 293		mContentView = findViewById(R.id.content_view_spl);
 294		if (mContentView == null) {
 295			mContentView = findViewById(R.id.content_view_ll);
 296		}
 297		if (mContentView instanceof SlidingPaneLayout) {
 298			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 299			mSlidingPaneLayout.setParallaxDistance(150);
 300			mSlidingPaneLayout
 301					.setShadowResource(R.drawable.es_slidingpane_shadow);
 302			mSlidingPaneLayout.setSliderFadeColor(0);
 303			mSlidingPaneLayout.setPanelSlideListener(new PanelSlideListener() {
 304
 305				@Override
 306				public void onPanelOpened(View arg0) {
 307					updateActionBarTitle();
 308					invalidateOptionsMenu();
 309					hideKeyboard();
 310					if (xmppConnectionServiceBound) {
 311						xmppConnectionService.getNotificationService()
 312								.setOpenConversation(null);
 313					}
 314					closeContextMenu();
 315				}
 316
 317				@Override
 318				public void onPanelClosed(View arg0) {
 319					listView.discardUndo();
 320					openConversation();
 321				}
 322
 323				@Override
 324				public void onPanelSlide(View arg0, float arg1) {
 325					// TODO Auto-generated method stub
 326
 327				}
 328			});
 329		}
 330	}
 331
 332	@Override
 333	public void switchToConversation(Conversation conversation) {
 334		setSelectedConversation(conversation);
 335		runOnUiThread(new Runnable() {
 336			@Override
 337			public void run() {
 338				ConversationActivity.this.mConversationFragment.reInit(getSelectedConversation());
 339				openConversation();
 340			}
 341		});
 342	}
 343
 344	private void updateActionBarTitle() {
 345		updateActionBarTitle(isConversationsOverviewHideable() && !isConversationsOverviewVisable());
 346	}
 347
 348	private void updateActionBarTitle(boolean titleShouldBeName) {
 349		final ActionBar ab = getActionBar();
 350		final Conversation conversation = getSelectedConversation();
 351		if (ab != null) {
 352			if (titleShouldBeName && conversation != null) {
 353				ab.setDisplayHomeAsUpEnabled(true);
 354				ab.setHomeButtonEnabled(true);
 355				if (conversation.getMode() == Conversation.MODE_SINGLE || useSubjectToIdentifyConference()) {
 356					ab.setTitle(conversation.getName());
 357				} else {
 358					ab.setTitle(conversation.getJid().toBareJid().toString());
 359				}
 360			} else {
 361				ab.setDisplayHomeAsUpEnabled(false);
 362				ab.setHomeButtonEnabled(false);
 363				ab.setTitle(R.string.app_name);
 364			}
 365		}
 366	}
 367
 368	private void openConversation() {
 369		this.updateActionBarTitle();
 370		this.invalidateOptionsMenu();
 371		if (xmppConnectionServiceBound) {
 372			final Conversation conversation = getSelectedConversation();
 373			xmppConnectionService.getNotificationService().setOpenConversation(conversation);
 374			sendReadMarkerIfNecessary(conversation);
 375		}
 376		listAdapter.notifyDataSetChanged();
 377	}
 378
 379	public void sendReadMarkerIfNecessary(final Conversation conversation) {
 380		if (!mActivityPaused && !mUnprocessedNewIntent && conversation != null) {
 381			xmppConnectionService.sendReadMarker(conversation);
 382		}
 383	}
 384
 385	@Override
 386	public boolean onCreateOptionsMenu(Menu menu) {
 387		getMenuInflater().inflate(R.menu.conversations, menu);
 388		final MenuItem menuSecure = menu.findItem(R.id.action_security);
 389		final MenuItem menuArchive = menu.findItem(R.id.action_archive);
 390		final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 391		final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 392		final MenuItem menuAttach = menu.findItem(R.id.action_attach_file);
 393		final MenuItem menuClearHistory = menu.findItem(R.id.action_clear_history);
 394		final MenuItem menuAdd = menu.findItem(R.id.action_add);
 395		final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 396		final MenuItem menuMute = menu.findItem(R.id.action_mute);
 397		final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 398
 399		if (isConversationsOverviewVisable() && isConversationsOverviewHideable()) {
 400			menuArchive.setVisible(false);
 401			menuMucDetails.setVisible(false);
 402			menuContactDetails.setVisible(false);
 403			menuSecure.setVisible(false);
 404			menuInviteContact.setVisible(false);
 405			menuAttach.setVisible(false);
 406			menuClearHistory.setVisible(false);
 407			menuMute.setVisible(false);
 408			menuUnmute.setVisible(false);
 409		} else {
 410			menuAdd.setVisible(!isConversationsOverviewHideable());
 411			if (this.getSelectedConversation() != null) {
 412				if (this.getSelectedConversation().getNextEncryption() != Message.ENCRYPTION_NONE) {
 413					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 414						menuSecure.setIcon(R.drawable.ic_lock_white_24dp);
 415					} else {
 416						menuSecure.setIcon(R.drawable.ic_action_secure);
 417					}
 418				}
 419				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
 420					menuContactDetails.setVisible(false);
 421					menuAttach.setVisible(getSelectedConversation().getAccount().httpUploadAvailable() && getSelectedConversation().getMucOptions().participating());
 422					menuInviteContact.setVisible(getSelectedConversation().getMucOptions().canInvite());
 423					menuSecure.setVisible((Config.supportOpenPgp() || Config.supportOmemo()) && Config.multipleEncryptionChoices()); //only if pgp is supported we have a choice
 424				} else {
 425					menuContactDetails.setVisible(!this.getSelectedConversation().withSelf());
 426					menuMucDetails.setVisible(false);
 427					menuSecure.setVisible(Config.multipleEncryptionChoices());
 428				}
 429				if (this.getSelectedConversation().isMuted()) {
 430					menuMute.setVisible(false);
 431				} else {
 432					menuUnmute.setVisible(false);
 433				}
 434			}
 435		}
 436		if (Config.supportOmemo()) {
 437			new Handler().post(new Runnable() {
 438				@Override
 439				public void run() {
 440					View view = findViewById(R.id.action_security);
 441					if (view != null) {
 442						view.setOnLongClickListener(new View.OnLongClickListener() {
 443							@Override
 444							public boolean onLongClick(View v) {
 445								return quickOmemoDebugger(getSelectedConversation());
 446							}
 447						});
 448					}
 449				}
 450			});
 451		}
 452		return super.onCreateOptionsMenu(menu);
 453	}
 454
 455	private boolean quickOmemoDebugger(Conversation c) {
 456		if (c != null) {
 457			boolean single = c.getMode() == Conversation.MODE_SINGLE;
 458			AxolotlService axolotlService = c.getAccount().getAxolotlService();
 459			Pair<AxolotlService.AxolotlCapability,Jid> capabilityJidPair = axolotlService.isConversationAxolotlCapableDetailed(c);
 460			switch (capabilityJidPair.first) {
 461				case MISSING_PRESENCE:
 462					Toast.makeText(ConversationActivity.this,single ? getString(R.string.missing_presence_subscription) : getString(R.string.missing_presence_subscription_with_x,capabilityJidPair.second.toBareJid().toString()),Toast.LENGTH_SHORT).show();
 463					return true;
 464				case MISSING_KEYS:
 465					Toast.makeText(ConversationActivity.this,single ? getString(R.string.missing_omemo_keys) : getString(R.string.missing_keys_from_x,capabilityJidPair.second.toBareJid().toString()),Toast.LENGTH_SHORT).show();
 466					return true;
 467				case WRONG_CONFIGURATION:
 468					Toast.makeText(ConversationActivity.this,R.string.wrong_conference_configuration, Toast.LENGTH_SHORT).show();
 469					return true;
 470				case NO_MEMBERS:
 471					Toast.makeText(ConversationActivity.this,R.string.this_conference_has_no_members, Toast.LENGTH_SHORT).show();
 472					return true;
 473			}
 474		}
 475		return false;
 476	}
 477
 478	protected void selectPresenceToAttachFile(final int attachmentChoice, final int encryption) {
 479		final Conversation conversation = getSelectedConversation();
 480		final Account account = conversation.getAccount();
 481		final OnPresenceSelected callback = new OnPresenceSelected() {
 482
 483			@Override
 484			public void onPresenceSelected() {
 485				Intent intent = new Intent();
 486				boolean chooser = false;
 487				String fallbackPackageId = null;
 488				switch (attachmentChoice) {
 489					case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 490						intent.setAction(Intent.ACTION_GET_CONTENT);
 491						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 492							intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
 493						}
 494						intent.setType("image/*");
 495						chooser = true;
 496						break;
 497					case ATTACHMENT_CHOICE_TAKE_PHOTO:
 498						Uri uri = xmppConnectionService.getFileBackend().getTakePhotoUri();
 499						intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 500						intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
 501						intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
 502						mPendingImageUris.clear();
 503						mPendingImageUris.add(uri);
 504						break;
 505					case ATTACHMENT_CHOICE_CHOOSE_FILE:
 506						chooser = true;
 507						intent.setType("*/*");
 508						intent.addCategory(Intent.CATEGORY_OPENABLE);
 509						intent.setAction(Intent.ACTION_GET_CONTENT);
 510						break;
 511					case ATTACHMENT_CHOICE_RECORD_VOICE:
 512						intent.setAction(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
 513						fallbackPackageId = "eu.siacs.conversations.voicerecorder";
 514						break;
 515					case ATTACHMENT_CHOICE_LOCATION:
 516						intent.setAction("eu.siacs.conversations.location.request");
 517						fallbackPackageId = "eu.siacs.conversations.sharelocation";
 518						break;
 519				}
 520				if (intent.resolveActivity(getPackageManager()) != null) {
 521					if (chooser) {
 522						startActivityForResult(
 523								Intent.createChooser(intent, getString(R.string.perform_action_with)),
 524								attachmentChoice);
 525					} else {
 526						startActivityForResult(intent, attachmentChoice);
 527					}
 528				} else if (fallbackPackageId != null) {
 529					startActivity(getInstallApkIntent(fallbackPackageId));
 530				}
 531			}
 532		};
 533		if ((account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) && encryption != Message.ENCRYPTION_OTR) {
 534			conversation.setNextCounterpart(null);
 535			callback.onPresenceSelected();
 536		} else {
 537			selectPresence(conversation, callback);
 538		}
 539	}
 540
 541	private Intent getInstallApkIntent(final String packageId) {
 542		Intent intent = new Intent(Intent.ACTION_VIEW);
 543		intent.setData(Uri.parse("market://details?id=" + packageId));
 544		if (intent.resolveActivity(getPackageManager()) != null) {
 545			return intent;
 546		} else {
 547			intent.setData(Uri.parse("http://play.google.com/store/apps/details?id=" + packageId));
 548			return intent;
 549		}
 550	}
 551
 552	public void attachFile(final int attachmentChoice) {
 553		if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
 554			if (!hasStoragePermission(attachmentChoice)) {
 555				return;
 556			}
 557		}
 558		switch (attachmentChoice) {
 559			case ATTACHMENT_CHOICE_LOCATION:
 560				getPreferences().edit().putString("recently_used_quick_action", "location").apply();
 561				break;
 562			case ATTACHMENT_CHOICE_RECORD_VOICE:
 563				getPreferences().edit().putString("recently_used_quick_action", "voice").apply();
 564				break;
 565			case ATTACHMENT_CHOICE_TAKE_PHOTO:
 566				getPreferences().edit().putString("recently_used_quick_action", "photo").apply();
 567				break;
 568			case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 569				getPreferences().edit().putString("recently_used_quick_action", "picture").apply();
 570				break;
 571		}
 572		final Conversation conversation = getSelectedConversation();
 573		final int encryption = conversation.getNextEncryption();
 574		final int mode = conversation.getMode();
 575		if (encryption == Message.ENCRYPTION_PGP) {
 576			if (hasPgp()) {
 577				if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
 578					xmppConnectionService.getPgpEngine().hasKey(
 579							conversation.getContact(),
 580							new UiCallback<Contact>() {
 581
 582								@Override
 583								public void userInputRequried(PendingIntent pi, Contact contact) {
 584									ConversationActivity.this.runIntent(pi, attachmentChoice);
 585								}
 586
 587								@Override
 588								public void success(Contact contact) {
 589									selectPresenceToAttachFile(attachmentChoice, encryption);
 590								}
 591
 592								@Override
 593								public void error(int error, Contact contact) {
 594									replaceToast(getString(error));
 595								}
 596							});
 597				} else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
 598					if (!conversation.getMucOptions().everybodyHasKeys()) {
 599						Toast warning = Toast
 600								.makeText(this,
 601										R.string.missing_public_keys,
 602										Toast.LENGTH_LONG);
 603						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
 604						warning.show();
 605					}
 606					selectPresenceToAttachFile(attachmentChoice, encryption);
 607				} else {
 608					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 609							.findFragmentByTag("conversation");
 610					if (fragment != null) {
 611						fragment.showNoPGPKeyDialog(false,
 612								new OnClickListener() {
 613
 614									@Override
 615									public void onClick(DialogInterface dialog,
 616														int which) {
 617										conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 618										xmppConnectionService.updateConversation(conversation);
 619										selectPresenceToAttachFile(attachmentChoice, Message.ENCRYPTION_NONE);
 620									}
 621								});
 622					}
 623				}
 624			} else {
 625				showInstallPgpDialog();
 626			}
 627		} else {
 628			if (encryption != Message.ENCRYPTION_AXOLOTL || !trustKeysIfNeeded(REQUEST_TRUST_KEYS_MENU, attachmentChoice)) {
 629				selectPresenceToAttachFile(attachmentChoice, encryption);
 630			}
 631		}
 632	}
 633
 634	@Override
 635	public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 636		if (grantResults.length > 0)
 637			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 638				if (requestCode == REQUEST_START_DOWNLOAD) {
 639					if (this.mPendingDownloadableMessage != null) {
 640						startDownloadable(this.mPendingDownloadableMessage);
 641					}
 642				} else {
 643					attachFile(requestCode);
 644				}
 645			} else {
 646				Toast.makeText(this, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
 647			}
 648	}
 649
 650	public void startDownloadable(Message message) {
 651		if (!hasStoragePermission(ConversationActivity.REQUEST_START_DOWNLOAD)) {
 652			this.mPendingDownloadableMessage = message;
 653			return;
 654		}
 655		Transferable transferable = message.getTransferable();
 656		if (transferable != null) {
 657			if (!transferable.start()) {
 658				Toast.makeText(this, R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
 659			}
 660		} else if (message.treatAsDownloadable() != Message.Decision.NEVER) {
 661			xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
 662		}
 663	}
 664
 665	@Override
 666	public boolean onOptionsItemSelected(final MenuItem item) {
 667		if (item.getItemId() == android.R.id.home) {
 668			showConversationsOverview();
 669			return true;
 670		} else if (item.getItemId() == R.id.action_add) {
 671			startActivity(new Intent(this, StartConversationActivity.class));
 672			return true;
 673		} else if (getSelectedConversation() != null) {
 674			switch (item.getItemId()) {
 675				case R.id.action_attach_file:
 676					attachFileDialog();
 677					break;
 678				case R.id.action_archive:
 679					this.endConversation(getSelectedConversation());
 680					break;
 681				case R.id.action_contact_details:
 682					switchToContactDetails(getSelectedConversation().getContact());
 683					break;
 684				case R.id.action_muc_details:
 685					Intent intent = new Intent(this,
 686							ConferenceDetailsActivity.class);
 687					intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 688					intent.putExtra("uuid", getSelectedConversation().getUuid());
 689					startActivity(intent);
 690					break;
 691				case R.id.action_invite:
 692					inviteToConversation(getSelectedConversation());
 693					break;
 694				case R.id.action_security:
 695					selectEncryptionDialog(getSelectedConversation());
 696					break;
 697				case R.id.action_clear_history:
 698					clearHistoryDialog(getSelectedConversation());
 699					break;
 700				case R.id.action_mute:
 701					muteConversationDialog(getSelectedConversation());
 702					break;
 703				case R.id.action_unmute:
 704					unmuteConversation(getSelectedConversation());
 705					break;
 706				case R.id.action_block:
 707					BlockContactDialog.show(this, xmppConnectionService, getSelectedConversation());
 708					break;
 709				case R.id.action_unblock:
 710					BlockContactDialog.show(this, xmppConnectionService, getSelectedConversation());
 711					break;
 712				default:
 713					break;
 714			}
 715			return super.onOptionsItemSelected(item);
 716		} else {
 717			return super.onOptionsItemSelected(item);
 718		}
 719	}
 720
 721	public void endConversation(Conversation conversation) {
 722		endConversation(conversation, true, true);
 723	}
 724
 725	public void endConversation(Conversation conversation, boolean showOverview, boolean reinit) {
 726		if (showOverview) {
 727			showConversationsOverview();
 728		}
 729		xmppConnectionService.archiveConversation(conversation);
 730		if (reinit) {
 731			if (conversationList.size() > 0) {
 732				setSelectedConversation(conversationList.get(0));
 733				this.mConversationFragment.reInit(getSelectedConversation());
 734			} else {
 735				setSelectedConversation(null);
 736				if (mRedirected.compareAndSet(false, true)) {
 737					Intent intent = new Intent(this, StartConversationActivity.class);
 738					intent.putExtra("init", true);
 739					startActivity(intent);
 740					finish();
 741				}
 742			}
 743		}
 744	}
 745
 746	@SuppressLint("InflateParams")
 747	protected void clearHistoryDialog(final Conversation conversation) {
 748		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 749		builder.setTitle(getString(R.string.clear_conversation_history));
 750		View dialogView = getLayoutInflater().inflate(
 751				R.layout.dialog_clear_history, null);
 752		final CheckBox endConversationCheckBox = (CheckBox) dialogView
 753				.findViewById(R.id.end_conversation_checkbox);
 754		builder.setView(dialogView);
 755		builder.setNegativeButton(getString(R.string.cancel), null);
 756		builder.setPositiveButton(getString(R.string.delete_messages),
 757				new OnClickListener() {
 758
 759					@Override
 760					public void onClick(DialogInterface dialog, int which) {
 761						ConversationActivity.this.xmppConnectionService.clearConversationHistory(conversation);
 762						if (endConversationCheckBox.isChecked()) {
 763							endConversation(conversation);
 764						} else {
 765							updateConversationList();
 766							ConversationActivity.this.mConversationFragment.updateMessages();
 767						}
 768					}
 769				});
 770		builder.create().show();
 771	}
 772
 773	protected void attachFileDialog() {
 774		View menuAttachFile = findViewById(R.id.action_attach_file);
 775		if (menuAttachFile == null) {
 776			return;
 777		}
 778		PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
 779		attachFilePopup.inflate(R.menu.attachment_choices);
 780		if (new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION).resolveActivity(getPackageManager()) == null) {
 781			attachFilePopup.getMenu().findItem(R.id.attach_record_voice).setVisible(false);
 782		}
 783		if (new Intent("eu.siacs.conversations.location.request").resolveActivity(getPackageManager()) == null) {
 784			attachFilePopup.getMenu().findItem(R.id.attach_location).setVisible(false);
 785		}
 786		attachFilePopup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 787
 788			@Override
 789			public boolean onMenuItemClick(MenuItem item) {
 790				switch (item.getItemId()) {
 791					case R.id.attach_choose_picture:
 792						attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 793						break;
 794					case R.id.attach_take_picture:
 795						attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
 796						break;
 797					case R.id.attach_choose_file:
 798						attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
 799						break;
 800					case R.id.attach_record_voice:
 801						attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
 802						break;
 803					case R.id.attach_location:
 804						attachFile(ATTACHMENT_CHOICE_LOCATION);
 805						break;
 806				}
 807				return false;
 808			}
 809		});
 810		attachFilePopup.show();
 811	}
 812
 813	public void verifyOtrSessionDialog(final Conversation conversation, View view) {
 814		if (!conversation.hasValidOtrSession() || conversation.getOtrSession().getSessionStatus() != SessionStatus.ENCRYPTED) {
 815			Toast.makeText(this, R.string.otr_session_not_started, Toast.LENGTH_LONG).show();
 816			return;
 817		}
 818		if (view == null) {
 819			return;
 820		}
 821		PopupMenu popup = new PopupMenu(this, view);
 822		popup.inflate(R.menu.verification_choices);
 823		popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 824			@Override
 825			public boolean onMenuItemClick(MenuItem menuItem) {
 826				Intent intent = new Intent(ConversationActivity.this, VerifyOTRActivity.class);
 827				intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 828				intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 829				intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 830				switch (menuItem.getItemId()) {
 831					case R.id.scan_fingerprint:
 832						intent.putExtra("mode", VerifyOTRActivity.MODE_SCAN_FINGERPRINT);
 833						break;
 834					case R.id.ask_question:
 835						intent.putExtra("mode", VerifyOTRActivity.MODE_ASK_QUESTION);
 836						break;
 837					case R.id.manual_verification:
 838						intent.putExtra("mode", VerifyOTRActivity.MODE_MANUAL_VERIFICATION);
 839						break;
 840				}
 841				startActivity(intent);
 842				return true;
 843			}
 844		});
 845		popup.show();
 846	}
 847
 848	protected void selectEncryptionDialog(final Conversation conversation) {
 849		View menuItemView = findViewById(R.id.action_security);
 850		if (menuItemView == null) {
 851			return;
 852		}
 853		PopupMenu popup = new PopupMenu(this, menuItemView);
 854		final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 855				.findFragmentByTag("conversation");
 856		if (fragment != null) {
 857			popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 858
 859				@Override
 860				public boolean onMenuItemClick(MenuItem item) {
 861					switch (item.getItemId()) {
 862						case R.id.encryption_choice_none:
 863							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 864							item.setChecked(true);
 865							break;
 866						case R.id.encryption_choice_otr:
 867							conversation.setNextEncryption(Message.ENCRYPTION_OTR);
 868							item.setChecked(true);
 869							break;
 870						case R.id.encryption_choice_pgp:
 871							if (hasPgp()) {
 872								if (conversation.getAccount().getPgpSignature() != null) {
 873									conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 874									item.setChecked(true);
 875								} else {
 876									announcePgp(conversation.getAccount(), conversation, onOpenPGPKeyPublished);
 877								}
 878							} else {
 879								showInstallPgpDialog();
 880							}
 881							break;
 882						case R.id.encryption_choice_axolotl:
 883							Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
 884									+ "Enabled axolotl for Contact " + conversation.getContact().getJid());
 885							conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
 886							item.setChecked(true);
 887							break;
 888						default:
 889							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 890							break;
 891					}
 892					xmppConnectionService.updateConversation(conversation);
 893					fragment.updateChatMsgHint();
 894					invalidateOptionsMenu();
 895					refreshUi();
 896					return true;
 897				}
 898			});
 899			popup.inflate(R.menu.encryption_choices);
 900			MenuItem otr = popup.getMenu().findItem(R.id.encryption_choice_otr);
 901			MenuItem none = popup.getMenu().findItem(R.id.encryption_choice_none);
 902			MenuItem pgp = popup.getMenu().findItem(R.id.encryption_choice_pgp);
 903			MenuItem axolotl = popup.getMenu().findItem(R.id.encryption_choice_axolotl);
 904			pgp.setVisible(Config.supportOpenPgp());
 905			none.setVisible(Config.supportUnencrypted() || conversation.getMode() == Conversation.MODE_MULTI);
 906			otr.setVisible(Config.supportOtr());
 907			axolotl.setVisible(Config.supportOmemo());
 908			if (conversation.getMode() == Conversation.MODE_MULTI) {
 909				otr.setVisible(false);
 910			}
 911			if (!conversation.getAccount().getAxolotlService().isConversationAxolotlCapable(conversation)) {
 912				axolotl.setEnabled(false);
 913			}
 914			switch (conversation.getNextEncryption()) {
 915				case Message.ENCRYPTION_NONE:
 916					none.setChecked(true);
 917					break;
 918				case Message.ENCRYPTION_OTR:
 919					otr.setChecked(true);
 920					break;
 921				case Message.ENCRYPTION_PGP:
 922					pgp.setChecked(true);
 923					break;
 924				case Message.ENCRYPTION_AXOLOTL:
 925					axolotl.setChecked(true);
 926					break;
 927				default:
 928					none.setChecked(true);
 929					break;
 930			}
 931			popup.show();
 932		}
 933	}
 934
 935	protected void muteConversationDialog(final Conversation conversation) {
 936		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 937		builder.setTitle(R.string.disable_notifications);
 938		final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
 939		builder.setItems(R.array.mute_options_descriptions,
 940				new OnClickListener() {
 941
 942					@Override
 943					public void onClick(final DialogInterface dialog, final int which) {
 944						final long till;
 945						if (durations[which] == -1) {
 946							till = Long.MAX_VALUE;
 947						} else {
 948							till = System.currentTimeMillis() + (durations[which] * 1000);
 949						}
 950						conversation.setMutedTill(till);
 951						ConversationActivity.this.xmppConnectionService.updateConversation(conversation);
 952						updateConversationList();
 953						ConversationActivity.this.mConversationFragment.updateMessages();
 954						invalidateOptionsMenu();
 955					}
 956				});
 957		builder.create().show();
 958	}
 959
 960	public void unmuteConversation(final Conversation conversation) {
 961		conversation.setMutedTill(0);
 962		this.xmppConnectionService.updateConversation(conversation);
 963		updateConversationList();
 964		ConversationActivity.this.mConversationFragment.updateMessages();
 965		invalidateOptionsMenu();
 966	}
 967
 968	@Override
 969	public void onBackPressed() {
 970		if (!isConversationsOverviewVisable()) {
 971			showConversationsOverview();
 972		} else {
 973			moveTaskToBack(true);
 974		}
 975	}
 976
 977	@Override
 978	public boolean onKeyUp(int key, KeyEvent event) {
 979		int rotation = getWindowManager().getDefaultDisplay().getRotation();
 980		final int upKey;
 981		final int downKey;
 982		switch (rotation) {
 983			case Surface.ROTATION_90:
 984				upKey = KeyEvent.KEYCODE_DPAD_LEFT;
 985				downKey = KeyEvent.KEYCODE_DPAD_RIGHT;
 986				break;
 987			case Surface.ROTATION_180:
 988				upKey = KeyEvent.KEYCODE_DPAD_DOWN;
 989				downKey = KeyEvent.KEYCODE_DPAD_UP;
 990				break;
 991			case Surface.ROTATION_270:
 992				upKey = KeyEvent.KEYCODE_DPAD_RIGHT;
 993				downKey = KeyEvent.KEYCODE_DPAD_LEFT;
 994				break;
 995			default:
 996				upKey = KeyEvent.KEYCODE_DPAD_UP;
 997				downKey = KeyEvent.KEYCODE_DPAD_DOWN;
 998		}
 999		final boolean modifier = event.isCtrlPressed() || (event.getMetaState() & KeyEvent.META_ALT_LEFT_ON) != 0;
1000		if (modifier && key == KeyEvent.KEYCODE_TAB && isConversationsOverviewHideable()) {
1001			toggleConversationsOverview();
1002			return true;
1003		} else if (modifier && key == KeyEvent.KEYCODE_SPACE) {
1004			startActivity(new Intent(this, StartConversationActivity.class));
1005			return true;
1006		} else if (modifier && key == downKey) {
1007			if (isConversationsOverviewHideable() && !isConversationsOverviewVisable()) {
1008				showConversationsOverview();
1009				;
1010			}
1011			return selectDownConversation();
1012		} else if (modifier && key == upKey) {
1013			if (isConversationsOverviewHideable() && !isConversationsOverviewVisable()) {
1014				showConversationsOverview();
1015			}
1016			return selectUpConversation();
1017		} else if (modifier && key == KeyEvent.KEYCODE_1) {
1018			return openConversationByIndex(0);
1019		} else if (modifier && key == KeyEvent.KEYCODE_2) {
1020			return openConversationByIndex(1);
1021		} else if (modifier && key == KeyEvent.KEYCODE_3) {
1022			return openConversationByIndex(2);
1023		} else if (modifier && key == KeyEvent.KEYCODE_4) {
1024			return openConversationByIndex(3);
1025		} else if (modifier && key == KeyEvent.KEYCODE_5) {
1026			return openConversationByIndex(4);
1027		} else if (modifier && key == KeyEvent.KEYCODE_6) {
1028			return openConversationByIndex(5);
1029		} else if (modifier && key == KeyEvent.KEYCODE_7) {
1030			return openConversationByIndex(6);
1031		} else if (modifier && key == KeyEvent.KEYCODE_8) {
1032			return openConversationByIndex(7);
1033		} else if (modifier && key == KeyEvent.KEYCODE_9) {
1034			return openConversationByIndex(8);
1035		} else if (modifier && key == KeyEvent.KEYCODE_0) {
1036			return openConversationByIndex(9);
1037		} else {
1038			return super.onKeyUp(key, event);
1039		}
1040	}
1041
1042	private void toggleConversationsOverview() {
1043		if (isConversationsOverviewVisable()) {
1044			hideConversationsOverview();
1045			if (mConversationFragment != null) {
1046				mConversationFragment.setFocusOnInputField();
1047			}
1048		} else {
1049			showConversationsOverview();
1050		}
1051	}
1052
1053	private boolean selectUpConversation() {
1054		if (this.mSelectedConversation != null) {
1055			int index = this.conversationList.indexOf(this.mSelectedConversation);
1056			if (index > 0) {
1057				return openConversationByIndex(index - 1);
1058			}
1059		}
1060		return false;
1061	}
1062
1063	private boolean selectDownConversation() {
1064		if (this.mSelectedConversation != null) {
1065			int index = this.conversationList.indexOf(this.mSelectedConversation);
1066			if (index != -1 && index < this.conversationList.size() - 1) {
1067				return openConversationByIndex(index + 1);
1068			}
1069		}
1070		return false;
1071	}
1072
1073	private boolean openConversationByIndex(int index) {
1074		try {
1075			this.conversationWasSelectedByKeyboard = true;
1076			setSelectedConversation(this.conversationList.get(index));
1077			this.mConversationFragment.reInit(getSelectedConversation());
1078			if (index > listView.getLastVisiblePosition() - 1 || index < listView.getFirstVisiblePosition() + 1) {
1079				this.listView.setSelection(index);
1080			}
1081			openConversation();
1082			return true;
1083		} catch (IndexOutOfBoundsException e) {
1084			return false;
1085		}
1086	}
1087
1088	@Override
1089	protected void onNewIntent(final Intent intent) {
1090		if (intent != null && ACTION_VIEW_CONVERSATION.equals(intent.getAction())) {
1091			mOpenConversation = null;
1092			mUnprocessedNewIntent = true;
1093			if (xmppConnectionServiceBound) {
1094				handleViewConversationIntent(intent);
1095				intent.setAction(Intent.ACTION_MAIN);
1096			} else {
1097				setIntent(intent);
1098			}
1099		}
1100	}
1101
1102	@Override
1103	public void onStart() {
1104		super.onStart();
1105		this.mRedirected.set(false);
1106		if (this.xmppConnectionServiceBound) {
1107			this.onBackendConnected();
1108		}
1109		if (conversationList.size() >= 1) {
1110			this.onConversationUpdate();
1111		}
1112	}
1113
1114	@Override
1115	public void onPause() {
1116		listView.discardUndo();
1117		super.onPause();
1118		this.mActivityPaused = true;
1119	}
1120
1121	@Override
1122	public void onResume() {
1123		super.onResume();
1124		final int theme = findTheme();
1125		final boolean usingEnterKey = usingEnterKey();
1126		if (this.mTheme != theme || usingEnterKey != mUsingEnterKey) {
1127			recreate();
1128		}
1129		this.mActivityPaused = false;
1130
1131
1132		if (!isConversationsOverviewVisable() || !isConversationsOverviewHideable()) {
1133			sendReadMarkerIfNecessary(getSelectedConversation());
1134		}
1135
1136	}
1137
1138	@Override
1139	public void onSaveInstanceState(final Bundle savedInstanceState) {
1140		Conversation conversation = getSelectedConversation();
1141		if (conversation != null) {
1142			savedInstanceState.putString(STATE_OPEN_CONVERSATION, conversation.getUuid());
1143			Pair<Integer,Integer> scrollPosition = mConversationFragment.getScrollPosition();
1144			if (scrollPosition != null) {
1145				savedInstanceState.putInt(STATE_FIRST_VISIBLE, scrollPosition.first);
1146				savedInstanceState.putInt(STATE_OFFSET_FROM_TOP, scrollPosition.second);
1147			}
1148		} else {
1149			savedInstanceState.remove(STATE_OPEN_CONVERSATION);
1150		}
1151		savedInstanceState.putBoolean(STATE_PANEL_OPEN, isConversationsOverviewVisable());
1152		if (this.mPendingImageUris.size() >= 1) {
1153			Log.d(Config.LOGTAG,"ConversationsActivity.onSaveInstanceState() - saving pending image uri");
1154			savedInstanceState.putString(STATE_PENDING_URI, this.mPendingImageUris.get(0).toString());
1155		} else {
1156			savedInstanceState.remove(STATE_PENDING_URI);
1157		}
1158		super.onSaveInstanceState(savedInstanceState);
1159	}
1160
1161	private void clearPending() {
1162		mPendingImageUris.clear();
1163		mPendingFileUris.clear();
1164		mPendingGeoUri = null;
1165		mPostponedActivityResult = null;
1166	}
1167
1168	@Override
1169	void onBackendConnected() {
1170		this.xmppConnectionService.getNotificationService().setIsInForeground(true);
1171		updateConversationList();
1172
1173		if (mPendingConferenceInvite != null) {
1174			if (mPendingConferenceInvite.execute(this)) {
1175				mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
1176				mToast.show();
1177			}
1178			mPendingConferenceInvite = null;
1179		}
1180
1181		final Intent intent = getIntent();
1182
1183		if (xmppConnectionService.getAccounts().size() == 0) {
1184			if (mRedirected.compareAndSet(false, true)) {
1185				if (Config.X509_VERIFICATION) {
1186					startActivity(new Intent(this, ManageAccountActivity.class));
1187				} else if (Config.MAGIC_CREATE_DOMAIN != null) {
1188					startActivity(new Intent(this, WelcomeActivity.class));
1189				} else {
1190					Intent editAccount = new Intent(this, EditAccountActivity.class);
1191					editAccount.putExtra("init",true);
1192					startActivity(editAccount);
1193				}
1194				finish();
1195			}
1196		} else if (conversationList.size() <= 0) {
1197			if (mRedirected.compareAndSet(false, true)) {
1198				Account pendingAccount = xmppConnectionService.getPendingAccount();
1199				if (pendingAccount == null) {
1200					Intent startConversationActivity = new Intent(this, StartConversationActivity.class);
1201					intent.putExtra("init", true);
1202					startActivity(startConversationActivity);
1203				} else {
1204					switchToAccount(pendingAccount, true);
1205				}
1206				finish();
1207			}
1208		} else if (selectConversationByUuid(mOpenConversation)) {
1209			if (mPanelOpen) {
1210				showConversationsOverview();
1211			} else {
1212				if (isConversationsOverviewHideable()) {
1213					openConversation();
1214					updateActionBarTitle(true);
1215				}
1216			}
1217			if (this.mConversationFragment.reInit(getSelectedConversation())) {
1218				Log.d(Config.LOGTAG,"setting scroll position on fragment");
1219				this.mConversationFragment.setScrollPosition(mScrollPosition);
1220			}
1221			mOpenConversation = null;
1222		} else if (intent != null && ACTION_VIEW_CONVERSATION.equals(intent.getAction())) {
1223			clearPending();
1224			handleViewConversationIntent(intent);
1225			intent.setAction(Intent.ACTION_MAIN);
1226		} else if (getSelectedConversation() == null) {
1227			showConversationsOverview();
1228			clearPending();
1229			setSelectedConversation(conversationList.get(0));
1230			this.mConversationFragment.reInit(getSelectedConversation());
1231		} else {
1232			this.mConversationFragment.messageListAdapter.updatePreferences();
1233			this.mConversationFragment.messagesView.invalidateViews();
1234			this.mConversationFragment.setupIme();
1235		}
1236
1237		if (this.mPostponedActivityResult != null) {
1238			this.onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
1239		}
1240
1241		final boolean stopping;
1242		if (Build.VERSION.SDK_INT >= 17) {
1243			stopping = isFinishing() || isDestroyed();
1244		} else {
1245			stopping = isFinishing();
1246		}
1247
1248		if (!forbidProcessingPendings) {
1249			for (Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
1250				Uri foo = i.next();
1251				Log.d(Config.LOGTAG,"ConversationsActivity.onBackendConnected() - attaching image to conversations. stopping="+Boolean.toString(stopping));
1252				attachImageToConversation(getSelectedConversation(), foo);
1253			}
1254
1255			for (Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
1256				Log.d(Config.LOGTAG,"ConversationsActivity.onBackendConnected() - attaching file to conversations. stopping="+Boolean.toString(stopping));
1257				attachFileToConversation(getSelectedConversation(), i.next());
1258			}
1259
1260			if (mPendingGeoUri != null) {
1261				attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
1262				mPendingGeoUri = null;
1263			}
1264		}
1265		forbidProcessingPendings = false;
1266
1267		if (!ExceptionHelper.checkForCrash(this, this.xmppConnectionService)) {
1268			openBatteryOptimizationDialogIfNeeded();
1269		}
1270	}
1271
1272	private void handleViewConversationIntent(final Intent intent) {
1273		final String uuid = intent.getStringExtra(CONVERSATION);
1274		final String downloadUuid = intent.getStringExtra(EXTRA_DOWNLOAD_UUID);
1275		final String text = intent.getStringExtra(TEXT);
1276		final String nick = intent.getStringExtra(NICK);
1277		final boolean pm = intent.getBooleanExtra(PRIVATE_MESSAGE, false);
1278		if (selectConversationByUuid(uuid)) {
1279			this.mConversationFragment.reInit(getSelectedConversation());
1280			if (nick != null) {
1281				if (pm) {
1282					Jid jid = getSelectedConversation().getJid();
1283					try {
1284						Jid next = Jid.fromParts(jid.getLocalpart(), jid.getDomainpart(), nick);
1285						this.mConversationFragment.privateMessageWith(next);
1286					} catch (final InvalidJidException ignored) {
1287						//do nothing
1288					}
1289				} else {
1290					this.mConversationFragment.highlightInConference(nick);
1291				}
1292			} else {
1293				this.mConversationFragment.appendText(text);
1294			}
1295			hideConversationsOverview();
1296			mUnprocessedNewIntent = false;
1297			openConversation();
1298			if (mContentView instanceof SlidingPaneLayout) {
1299				updateActionBarTitle(true); //fixes bug where slp isn't properly closed yet
1300			}
1301			if (downloadUuid != null) {
1302				final Message message = mSelectedConversation.findMessageWithFileAndUuid(downloadUuid);
1303				if (message != null) {
1304					startDownloadable(message);
1305				}
1306			}
1307		} else {
1308			mUnprocessedNewIntent = false;
1309		}
1310	}
1311
1312	private boolean selectConversationByUuid(String uuid) {
1313		if (uuid == null) {
1314			return false;
1315		}
1316		for (Conversation aConversationList : conversationList) {
1317			if (aConversationList.getUuid().equals(uuid)) {
1318				setSelectedConversation(aConversationList);
1319				return true;
1320			}
1321		}
1322		return false;
1323	}
1324
1325	@Override
1326	protected void unregisterListeners() {
1327		super.unregisterListeners();
1328		xmppConnectionService.getNotificationService().setOpenConversation(null);
1329	}
1330
1331	@SuppressLint("NewApi")
1332	private static List<Uri> extractUriFromIntent(final Intent intent) {
1333		List<Uri> uris = new ArrayList<>();
1334		if (intent == null) {
1335			return uris;
1336		}
1337		Uri uri = intent.getData();
1338		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && uri == null) {
1339			final ClipData clipData = intent.getClipData();
1340			if (clipData != null) {
1341				for (int i = 0; i < clipData.getItemCount(); ++i) {
1342					uris.add(clipData.getItemAt(i).getUri());
1343				}
1344			}
1345		} else {
1346			uris.add(uri);
1347		}
1348		return uris;
1349	}
1350
1351	@Override
1352	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
1353		super.onActivityResult(requestCode, resultCode, data);
1354		if (resultCode == RESULT_OK) {
1355			if (requestCode == REQUEST_DECRYPT_PGP) {
1356				mConversationFragment.onActivityResult(requestCode, resultCode, data);
1357			} else if (requestCode == REQUEST_CHOOSE_PGP_ID) {
1358				// the user chose OpenPGP for encryption and selected his key in the PGP provider
1359				if (xmppConnectionServiceBound) {
1360					if (data.getExtras().containsKey(OpenPgpApi.EXTRA_SIGN_KEY_ID)) {
1361						// associate selected PGP keyId with the account
1362						mSelectedConversation.getAccount().setPgpSignId(data.getExtras().getLong(OpenPgpApi.EXTRA_SIGN_KEY_ID));
1363						// we need to announce the key as described in XEP-027
1364						announcePgp(mSelectedConversation.getAccount(), null, onOpenPGPKeyPublished);
1365					} else {
1366						choosePgpSignId(mSelectedConversation.getAccount());
1367					}
1368					this.mPostponedActivityResult = null;
1369				} else {
1370					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1371				}
1372			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
1373				if (xmppConnectionServiceBound) {
1374					announcePgp(mSelectedConversation.getAccount(), mSelectedConversation, onOpenPGPKeyPublished);
1375					this.mPostponedActivityResult = null;
1376				} else {
1377					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1378				}
1379			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
1380				mPendingImageUris.clear();
1381				mPendingImageUris.addAll(extractUriFromIntent(data));
1382				if (xmppConnectionServiceBound) {
1383					for (Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
1384						Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching image to conversations. CHOOSE_IMAGE");
1385						attachImageToConversation(getSelectedConversation(), i.next());
1386					}
1387				}
1388			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_FILE || requestCode == ATTACHMENT_CHOICE_RECORD_VOICE) {
1389				final List<Uri> uris = extractUriFromIntent(data);
1390				final Conversation c = getSelectedConversation();
1391				final OnPresenceSelected callback = new OnPresenceSelected() {
1392					@Override
1393					public void onPresenceSelected() {
1394						mPendingFileUris.clear();
1395						mPendingFileUris.addAll(uris);
1396						if (xmppConnectionServiceBound) {
1397							for (Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
1398								Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE");
1399								attachFileToConversation(c, i.next());
1400							}
1401						}
1402					}
1403				};
1404				if (c == null || c.getMode() == Conversation.MODE_MULTI
1405						|| FileBackend.allFilesUnderSize(this, uris, getMaxHttpUploadSize(c))
1406						|| c.getNextEncryption() == Message.ENCRYPTION_OTR) {
1407					callback.onPresenceSelected();
1408				} else {
1409					selectPresence(c, callback);
1410				}
1411			} else if (requestCode == ATTACHMENT_CHOICE_TAKE_PHOTO) {
1412				if (mPendingImageUris.size() == 1) {
1413					Uri uri = FileBackend.getIndexableTakePhotoUri(mPendingImageUris.get(0));
1414					mPendingImageUris.set(0, uri);
1415					if (xmppConnectionServiceBound) {
1416						Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching image to conversations. TAKE_PHOTO");
1417						attachImageToConversation(getSelectedConversation(), uri);
1418						mPendingImageUris.clear();
1419					}
1420					Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
1421					intent.setData(uri);
1422					sendBroadcast(intent);
1423				} else {
1424					mPendingImageUris.clear();
1425				}
1426			} else if (requestCode == ATTACHMENT_CHOICE_LOCATION) {
1427				double latitude = data.getDoubleExtra("latitude", 0);
1428				double longitude = data.getDoubleExtra("longitude", 0);
1429				this.mPendingGeoUri = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
1430				if (xmppConnectionServiceBound) {
1431					attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
1432					this.mPendingGeoUri = null;
1433				}
1434			} else if (requestCode == REQUEST_TRUST_KEYS_TEXT || requestCode == REQUEST_TRUST_KEYS_MENU) {
1435				this.forbidProcessingPendings = !xmppConnectionServiceBound;
1436				if (xmppConnectionServiceBound) {
1437					mConversationFragment.onActivityResult(requestCode, resultCode, data);
1438					this.mPostponedActivityResult = null;
1439				} else {
1440					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1441				}
1442
1443			}
1444		} else {
1445			mPendingImageUris.clear();
1446			mPendingFileUris.clear();
1447			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1448				mConversationFragment.onActivityResult(requestCode, resultCode, data);
1449			}
1450			if (requestCode == REQUEST_BATTERY_OP) {
1451				setNeverAskForBatteryOptimizationsAgain();
1452			}
1453		}
1454	}
1455
1456	private long getMaxHttpUploadSize(Conversation conversation) {
1457		final XmppConnection connection = conversation.getAccount().getXmppConnection();
1458		return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
1459	}
1460
1461	private void setNeverAskForBatteryOptimizationsAgain() {
1462		getPreferences().edit().putBoolean("show_battery_optimization", false).commit();
1463	}
1464
1465	private void openBatteryOptimizationDialogIfNeeded() {
1466		if (hasAccountWithoutPush()
1467				&& isOptimizingBattery()
1468				&& getPreferences().getBoolean("show_battery_optimization", true)) {
1469			AlertDialog.Builder builder = new AlertDialog.Builder(this);
1470			builder.setTitle(R.string.battery_optimizations_enabled);
1471			builder.setMessage(R.string.battery_optimizations_enabled_dialog);
1472			builder.setPositiveButton(R.string.next, new OnClickListener() {
1473				@Override
1474				public void onClick(DialogInterface dialog, int which) {
1475					Intent intent = new Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
1476					Uri uri = Uri.parse("package:" + getPackageName());
1477					intent.setData(uri);
1478					try {
1479						startActivityForResult(intent, REQUEST_BATTERY_OP);
1480					} catch (ActivityNotFoundException e) {
1481						Toast.makeText(ConversationActivity.this, R.string.device_does_not_support_battery_op, Toast.LENGTH_SHORT).show();
1482					}
1483				}
1484			});
1485			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1486				builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
1487					@Override
1488					public void onDismiss(DialogInterface dialog) {
1489						setNeverAskForBatteryOptimizationsAgain();
1490					}
1491				});
1492			}
1493			builder.create().show();
1494		}
1495	}
1496
1497	private boolean hasAccountWithoutPush() {
1498		for(Account account : xmppConnectionService.getAccounts()) {
1499			if (account.getStatus() != Account.State.DISABLED
1500					&& !xmppConnectionService.getPushManagementService().available(account)) {
1501				return true;
1502			}
1503		}
1504		return false;
1505	}
1506
1507	private void attachLocationToConversation(Conversation conversation, Uri uri) {
1508		if (conversation == null) {
1509			return;
1510		}
1511		xmppConnectionService.attachLocationToConversation(conversation,uri, new UiCallback<Message>() {
1512
1513			@Override
1514			public void success(Message message) {
1515				xmppConnectionService.sendMessage(message);
1516			}
1517
1518			@Override
1519			public void error(int errorCode, Message object) {
1520
1521			}
1522
1523			@Override
1524			public void userInputRequried(PendingIntent pi, Message object) {
1525
1526			}
1527		});
1528	}
1529
1530	private void attachFileToConversation(Conversation conversation, Uri uri) {
1531		if (conversation == null) {
1532			return;
1533		}
1534		final Toast prepareFileToast = Toast.makeText(getApplicationContext(),getText(R.string.preparing_file), Toast.LENGTH_LONG);
1535		prepareFileToast.show();
1536		xmppConnectionService.attachFileToConversation(conversation, uri, new UiCallback<Message>() {
1537			@Override
1538			public void success(Message message) {
1539				hidePrepareFileToast(prepareFileToast);
1540				xmppConnectionService.sendMessage(message);
1541			}
1542
1543			@Override
1544			public void error(final int errorCode, Message message) {
1545				hidePrepareFileToast(prepareFileToast);
1546				runOnUiThread(new Runnable() {
1547					@Override
1548					public void run() {
1549						replaceToast(getString(errorCode));
1550					}
1551				});
1552
1553			}
1554
1555			@Override
1556			public void userInputRequried(PendingIntent pi, Message message) {
1557				hidePrepareFileToast(prepareFileToast);
1558			}
1559		});
1560	}
1561
1562	private void attachImageToConversation(Conversation conversation, Uri uri) {
1563		if (conversation == null) {
1564			return;
1565		}
1566		final Toast prepareFileToast = Toast.makeText(getApplicationContext(),getText(R.string.preparing_image), Toast.LENGTH_LONG);
1567		prepareFileToast.show();
1568		xmppConnectionService.attachImageToConversation(conversation, uri,
1569				new UiCallback<Message>() {
1570
1571					@Override
1572					public void userInputRequried(PendingIntent pi, Message object) {
1573						hidePrepareFileToast(prepareFileToast);
1574					}
1575
1576					@Override
1577					public void success(Message message) {
1578						hidePrepareFileToast(prepareFileToast);
1579						xmppConnectionService.sendMessage(message);
1580					}
1581
1582					@Override
1583					public void error(final int error, Message message) {
1584						hidePrepareFileToast(prepareFileToast);
1585						runOnUiThread(new Runnable() {
1586							@Override
1587							public void run() {
1588								replaceToast(getString(error));
1589							}
1590						});
1591					}
1592				});
1593	}
1594
1595	private void hidePrepareFileToast(final Toast prepareFileToast) {
1596		if (prepareFileToast != null) {
1597			runOnUiThread(new Runnable() {
1598
1599				@Override
1600				public void run() {
1601					prepareFileToast.cancel();
1602				}
1603			});
1604		}
1605	}
1606
1607	public void updateConversationList() {
1608		xmppConnectionService
1609			.populateWithOrderedConversations(conversationList);
1610		if (swipedConversation != null) {
1611			if (swipedConversation.isRead()) {
1612				conversationList.remove(swipedConversation);
1613			} else {
1614				listView.discardUndo();
1615			}
1616		}
1617		listAdapter.notifyDataSetChanged();
1618	}
1619
1620	public void runIntent(PendingIntent pi, int requestCode) {
1621		try {
1622			this.startIntentSenderForResult(pi.getIntentSender(), requestCode,
1623					null, 0, 0, 0);
1624		} catch (final SendIntentException ignored) {
1625		}
1626	}
1627
1628	public void encryptTextMessage(Message message) {
1629		xmppConnectionService.getPgpEngine().encrypt(message,
1630				new UiCallback<Message>() {
1631
1632					@Override
1633					public void userInputRequried(PendingIntent pi,Message message) {
1634						ConversationActivity.this.runIntent(pi,ConversationActivity.REQUEST_SEND_MESSAGE);
1635					}
1636
1637					@Override
1638					public void success(Message message) {
1639						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1640						xmppConnectionService.sendMessage(message);
1641						if (mConversationFragment != null) {
1642							mConversationFragment.messageSent();
1643						}
1644					}
1645
1646					@Override
1647					public void error(final int error, Message message) {
1648						runOnUiThread(new Runnable() {
1649							@Override
1650							public void run() {
1651								Toast.makeText(ConversationActivity.this,
1652										R.string.unable_to_connect_to_keychain,
1653										Toast.LENGTH_SHORT
1654								).show();
1655							}
1656						});
1657					}
1658				});
1659	}
1660
1661	public boolean useSendButtonToIndicateStatus() {
1662		return getPreferences().getBoolean("send_button_status", false);
1663	}
1664
1665	public boolean indicateReceived() {
1666		return getPreferences().getBoolean("indicate_received", false);
1667	}
1668
1669	public boolean useGreenBackground() {
1670		return getPreferences().getBoolean("use_green_background",true);
1671	}
1672
1673	protected boolean trustKeysIfNeeded(int requestCode) {
1674		return trustKeysIfNeeded(requestCode, ATTACHMENT_CHOICE_INVALID);
1675	}
1676
1677	protected boolean trustKeysIfNeeded(int requestCode, int attachmentChoice) {
1678		AxolotlService axolotlService = mSelectedConversation.getAccount().getAxolotlService();
1679		final List<Jid> targets = axolotlService.getCryptoTargets(mSelectedConversation);
1680		boolean hasUnaccepted = !mSelectedConversation.getAcceptedCryptoTargets().containsAll(targets);
1681		boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
1682		boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
1683		boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(mSelectedConversation).isEmpty();
1684		boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
1685		if(hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted) {
1686			axolotlService.createSessionsIfNeeded(mSelectedConversation);
1687			Intent intent = new Intent(getApplicationContext(), TrustKeysActivity.class);
1688			String[] contacts = new String[targets.size()];
1689			for(int i = 0; i < contacts.length; ++i) {
1690				contacts[i] = targets.get(i).toString();
1691			}
1692			intent.putExtra("contacts", contacts);
1693			intent.putExtra(EXTRA_ACCOUNT, mSelectedConversation.getAccount().getJid().toBareJid().toString());
1694			intent.putExtra("choice", attachmentChoice);
1695			intent.putExtra("conversation",mSelectedConversation.getUuid());
1696			startActivityForResult(intent, requestCode);
1697			return true;
1698		} else {
1699			return false;
1700		}
1701	}
1702
1703	@Override
1704	protected void refreshUiReal() {
1705		updateConversationList();
1706		if (conversationList.size() > 0) {
1707			if (!this.mConversationFragment.isAdded()) {
1708				Log.d(Config.LOGTAG,"fragment NOT added to activity. detached="+Boolean.toString(mConversationFragment.isDetached()));
1709			}
1710			ConversationActivity.this.mConversationFragment.updateMessages();
1711			updateActionBarTitle();
1712			invalidateOptionsMenu();
1713		} else {
1714			Log.d(Config.LOGTAG,"not updating conversations fragment because conversations list size was 0");
1715		}
1716	}
1717
1718	@Override
1719	public void onAccountUpdate() {
1720		this.refreshUi();
1721	}
1722
1723	@Override
1724	public void onConversationUpdate() {
1725		this.refreshUi();
1726	}
1727
1728	@Override
1729	public void onRosterUpdate() {
1730		this.refreshUi();
1731	}
1732
1733	@Override
1734	public void OnUpdateBlocklist(Status status) {
1735		this.refreshUi();
1736	}
1737
1738	public void unblockConversation(final Blockable conversation) {
1739		xmppConnectionService.sendUnblockRequest(conversation);
1740	}
1741
1742	public boolean enterIsSend() {
1743		return getPreferences().getBoolean("enter_is_send",false);
1744	}
1745
1746	@Override
1747	public void onShowErrorToast(final int resId) {
1748		runOnUiThread(new Runnable() {
1749			@Override
1750			public void run() {
1751				Toast.makeText(ConversationActivity.this,resId,Toast.LENGTH_SHORT).show();
1752			}
1753		});
1754	}
1755
1756	public boolean highlightSelectedConversations() {
1757		return !isConversationsOverviewHideable() || this.conversationWasSelectedByKeyboard;
1758	}
1759
1760	public void setMessagesLoaded() {
1761		if (mConversationFragment != null) {
1762			mConversationFragment.setMessagesLoaded();
1763			mConversationFragment.updateMessages();
1764		}
1765	}
1766}