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.lang.reflect.Field;
  44import java.lang.reflect.Method;
  45import java.util.ArrayList;
  46import java.util.Iterator;
  47import java.util.List;
  48import java.util.concurrent.atomic.AtomicBoolean;
  49
  50import de.timroes.android.listview.EnhancedListView;
  51import eu.siacs.conversations.Config;
  52import eu.siacs.conversations.R;
  53import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  54import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  55import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
  56import eu.siacs.conversations.entities.Account;
  57import eu.siacs.conversations.entities.Blockable;
  58import eu.siacs.conversations.entities.Contact;
  59import eu.siacs.conversations.entities.Conversation;
  60import eu.siacs.conversations.entities.Message;
  61import eu.siacs.conversations.entities.Transferable;
  62import eu.siacs.conversations.persistance.FileBackend;
  63import eu.siacs.conversations.services.XmppConnectionService;
  64import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
  65import eu.siacs.conversations.services.XmppConnectionService.OnConversationUpdate;
  66import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  67import eu.siacs.conversations.ui.adapter.ConversationAdapter;
  68import eu.siacs.conversations.utils.ExceptionHelper;
  69import eu.siacs.conversations.utils.UIHelper;
  70import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  71import eu.siacs.conversations.xmpp.XmppConnection;
  72import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  73import eu.siacs.conversations.xmpp.jid.Jid;
  74
  75public class ConversationActivity extends XmppActivity
  76	implements OnAccountUpdate, OnConversationUpdate, OnRosterUpdate, OnUpdateBlocklist, XmppConnectionService.OnShowErrorToast {
  77
  78	public static final String ACTION_VIEW_CONVERSATION = "eu.siacs.conversations.action.VIEW";
  79	public static final String CONVERSATION = "conversationUuid";
  80	public static final String EXTRA_DOWNLOAD_UUID = "eu.siacs.conversations.download_uuid";
  81	public static final String TEXT = "text";
  82	public static final String NICK = "nick";
  83	public static final String PRIVATE_MESSAGE = "pm";
  84
  85	public static final int REQUEST_SEND_MESSAGE = 0x0201;
  86	public static final int REQUEST_DECRYPT_PGP = 0x0202;
  87	public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
  88	public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
  89	public static final int REQUEST_TRUST_KEYS_MENU = 0x0209;
  90	public static final int REQUEST_START_DOWNLOAD = 0x0210;
  91	public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
  92	public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
  93	public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
  94	public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
  95	public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
  96	public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
  97	private static final String STATE_OPEN_CONVERSATION = "state_open_conversation";
  98	private static final String STATE_PANEL_OPEN = "state_panel_open";
  99	private static final String STATE_PENDING_URI = "state_pending_uri";
 100	private static final String STATE_FIRST_VISIBLE = "first_visible";
 101	private static final String STATE_OFFSET_FROM_TOP = "offset_from_top";
 102
 103	private String mOpenConversation = null;
 104	private boolean mPanelOpen = true;
 105	private AtomicBoolean mShouldPanelBeOpen = new AtomicBoolean(false);
 106	private Pair<Integer,Integer> mScrollPosition = null;
 107	final private List<Uri> mPendingImageUris = new ArrayList<>();
 108	final private List<Uri> mPendingFileUris = new ArrayList<>();
 109	private Uri mPendingGeoUri = null;
 110	private boolean forbidProcessingPendings = false;
 111	private Message mPendingDownloadableMessage = null;
 112
 113	private boolean conversationWasSelectedByKeyboard = false;
 114
 115	private View mContentView;
 116
 117	private List<Conversation> conversationList = new ArrayList<>();
 118	private Conversation swipedConversation = null;
 119	private Conversation mSelectedConversation = null;
 120	private EnhancedListView listView;
 121	private ConversationFragment mConversationFragment;
 122
 123	private ArrayAdapter<Conversation> listAdapter;
 124
 125	private boolean mActivityPaused = false;
 126	private AtomicBoolean mRedirected = new AtomicBoolean(false);
 127	private Pair<Integer, Intent> mPostponedActivityResult;
 128	private boolean mUnprocessedNewIntent = false;
 129
 130	public Conversation getSelectedConversation() {
 131		return this.mSelectedConversation;
 132	}
 133
 134	public void setSelectedConversation(Conversation conversation) {
 135		this.mSelectedConversation = conversation;
 136	}
 137
 138	public void showConversationsOverview() {
 139		if (mContentView instanceof SlidingPaneLayout) {
 140			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 141			mShouldPanelBeOpen.set(true);
 142			mSlidingPaneLayout.openPane();
 143		}
 144	}
 145
 146	@Override
 147	protected String getShareableUri() {
 148		Conversation conversation = getSelectedConversation();
 149		if (conversation != null) {
 150			return conversation.getAccount().getShareableUri();
 151		} else {
 152			return "";
 153		}
 154	}
 155
 156	public void hideConversationsOverview() {
 157		if (mContentView instanceof SlidingPaneLayout) {
 158			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 159			mShouldPanelBeOpen.set(false);
 160			mSlidingPaneLayout.closePane();
 161		}
 162	}
 163
 164	public boolean isConversationsOverviewHideable() {
 165		return mContentView instanceof SlidingPaneLayout;
 166	}
 167
 168	public boolean isConversationsOverviewVisable() {
 169		if (mContentView instanceof SlidingPaneLayout) {
 170			return mShouldPanelBeOpen.get();
 171		} else {
 172			return true;
 173		}
 174	}
 175
 176	@Override
 177	protected void onCreate(final Bundle savedInstanceState) {
 178		super.onCreate(savedInstanceState);
 179		if (savedInstanceState != null) {
 180			mOpenConversation = savedInstanceState.getString(STATE_OPEN_CONVERSATION, null);
 181			mPanelOpen = savedInstanceState.getBoolean(STATE_PANEL_OPEN, true);
 182			int pos = savedInstanceState.getInt(STATE_FIRST_VISIBLE, -1);
 183			int offset = savedInstanceState.getInt(STATE_OFFSET_FROM_TOP, 1);
 184			if (pos >= 0 && offset <= 0) {
 185				Log.d(Config.LOGTAG,"retrieved scroll position from instanceState "+pos+":"+offset);
 186				mScrollPosition = new Pair<>(pos,offset);
 187			} else {
 188				mScrollPosition = null;
 189			}
 190			String pending = savedInstanceState.getString(STATE_PENDING_URI, null);
 191			if (pending != null) {
 192				Log.d(Config.LOGTAG,"ConversationsActivity.onCreate() - restoring pending image uri");
 193				mPendingImageUris.clear();
 194				mPendingImageUris.add(Uri.parse(pending));
 195			}
 196		}
 197
 198		setContentView(R.layout.fragment_conversations_overview);
 199
 200		this.mConversationFragment = new ConversationFragment();
 201		FragmentTransaction transaction = getFragmentManager().beginTransaction();
 202		transaction.replace(R.id.selected_conversation, this.mConversationFragment, "conversation");
 203		transaction.commit();
 204
 205		listView = (EnhancedListView) findViewById(R.id.list);
 206		this.listAdapter = new ConversationAdapter(this, conversationList);
 207		listView.setAdapter(this.listAdapter);
 208
 209		final ActionBar actionBar = getActionBar();
 210		if (actionBar != null) {
 211			actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_TITLE);
 212		}
 213
 214		listView.setOnItemClickListener(new OnItemClickListener() {
 215
 216			@Override
 217			public void onItemClick(AdapterView<?> arg0, View clickedView,
 218									int position, long arg3) {
 219				if (getSelectedConversation() != conversationList.get(position)) {
 220					setSelectedConversation(conversationList.get(position));
 221					ConversationActivity.this.mConversationFragment.reInit(getSelectedConversation());
 222					conversationWasSelectedByKeyboard = false;
 223				}
 224				hideConversationsOverview();
 225				openConversation();
 226			}
 227		});
 228
 229		listView.setDismissCallback(new EnhancedListView.OnDismissCallback() {
 230
 231			@Override
 232			public EnhancedListView.Undoable onDismiss(final EnhancedListView enhancedListView, final int position) {
 233
 234				final int index = listView.getFirstVisiblePosition();
 235				View v = listView.getChildAt(0);
 236				final int top = (v == null) ? 0 : (v.getTop() - listView.getPaddingTop());
 237
 238				try {
 239					swipedConversation = listAdapter.getItem(position);
 240				} catch (IndexOutOfBoundsException e) {
 241					return null;
 242				}
 243				listAdapter.remove(swipedConversation);
 244				xmppConnectionService.markRead(swipedConversation);
 245
 246				final boolean formerlySelected = (getSelectedConversation() == swipedConversation);
 247				if (position == 0 && listAdapter.getCount() == 0) {
 248					endConversation(swipedConversation, false, true);
 249					return null;
 250				} else if (formerlySelected) {
 251					setSelectedConversation(listAdapter.getItem(0));
 252					ConversationActivity.this.mConversationFragment
 253							.reInit(getSelectedConversation());
 254				}
 255
 256				return new EnhancedListView.Undoable() {
 257
 258					@Override
 259					public void undo() {
 260						listAdapter.insert(swipedConversation, position);
 261						if (formerlySelected) {
 262							setSelectedConversation(swipedConversation);
 263							ConversationActivity.this.mConversationFragment
 264									.reInit(getSelectedConversation());
 265						}
 266						swipedConversation = null;
 267						listView.setSelectionFromTop(index + (listView.getChildCount() < position ? 1 : 0), top);
 268					}
 269
 270					@Override
 271					public void discard() {
 272						if (!swipedConversation.isRead()
 273								&& swipedConversation.getMode() == Conversation.MODE_SINGLE) {
 274							swipedConversation = null;
 275							return;
 276						}
 277						endConversation(swipedConversation, false, false);
 278						swipedConversation = null;
 279					}
 280
 281					@Override
 282					public String getTitle() {
 283						if (swipedConversation.getMode() == Conversation.MODE_MULTI) {
 284							return getResources().getString(R.string.title_undo_swipe_out_muc);
 285						} else {
 286							return getResources().getString(R.string.title_undo_swipe_out_conversation);
 287						}
 288					}
 289				};
 290			}
 291		});
 292		listView.enableSwipeToDismiss();
 293		listView.setSwipingLayout(R.id.swipeable_item);
 294		listView.setUndoStyle(EnhancedListView.UndoStyle.SINGLE_POPUP);
 295		listView.setUndoHideDelay(5000);
 296		listView.setRequireTouchBeforeDismiss(false);
 297
 298		mContentView = findViewById(R.id.content_view_spl);
 299		if (mContentView == null) {
 300			mContentView = findViewById(R.id.content_view_ll);
 301		}
 302		if (mContentView instanceof SlidingPaneLayout) {
 303			SlidingPaneLayout mSlidingPaneLayout = (SlidingPaneLayout) mContentView;
 304			mSlidingPaneLayout.setShadowResource(R.drawable.es_slidingpane_shadow);
 305			mSlidingPaneLayout.setSliderFadeColor(0);
 306			mSlidingPaneLayout.setPanelSlideListener(new PanelSlideListener() {
 307
 308				@Override
 309				public void onPanelOpened(View arg0) {
 310					mShouldPanelBeOpen.set(true);
 311					updateActionBarTitle();
 312					invalidateOptionsMenu();
 313					hideKeyboard();
 314					if (xmppConnectionServiceBound) {
 315						xmppConnectionService.getNotificationService().setOpenConversation(null);
 316					}
 317					closeContextMenu();
 318				}
 319
 320				@Override
 321				public void onPanelClosed(View arg0) {
 322					mShouldPanelBeOpen.set(false);
 323					listView.discardUndo();
 324					openConversation();
 325				}
 326
 327				@Override
 328				public void onPanelSlide(View arg0, float arg1) {
 329					// TODO Auto-generated method stub
 330
 331				}
 332			});
 333		}
 334	}
 335
 336	@Override
 337	public void switchToConversation(Conversation conversation) {
 338		setSelectedConversation(conversation);
 339		runOnUiThread(new Runnable() {
 340			@Override
 341			public void run() {
 342				ConversationActivity.this.mConversationFragment.reInit(getSelectedConversation());
 343				openConversation();
 344			}
 345		});
 346	}
 347
 348	private void updateActionBarTitle() {
 349		updateActionBarTitle(isConversationsOverviewHideable() && !isConversationsOverviewVisable());
 350	}
 351
 352	private void updateActionBarTitle(boolean titleShouldBeName) {
 353		final ActionBar ab = getActionBar();
 354		final Conversation conversation = getSelectedConversation();
 355		if (ab != null) {
 356			if (titleShouldBeName && conversation != null) {
 357				if ((ab.getDisplayOptions() & ActionBar.DISPLAY_HOME_AS_UP) != ActionBar.DISPLAY_HOME_AS_UP) {
 358					ab.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP | ActionBar.DISPLAY_SHOW_TITLE);
 359				}
 360				if (conversation.getMode() == Conversation.MODE_SINGLE || useSubjectToIdentifyConference()) {
 361					ab.setTitle(conversation.getName());
 362				} else {
 363					ab.setTitle(conversation.getJid().toBareJid().toString());
 364				}
 365			} else {
 366				if ((ab.getDisplayOptions() & ActionBar.DISPLAY_HOME_AS_UP) == ActionBar.DISPLAY_HOME_AS_UP) {
 367					ab.setDisplayOptions(ActionBar.DISPLAY_SHOW_TITLE);
 368				}
 369				ab.setTitle(R.string.app_name);
 370			}
 371		}
 372	}
 373
 374	private void openConversation() {
 375		this.updateActionBarTitle();
 376		this.invalidateOptionsMenu();
 377		if (xmppConnectionServiceBound) {
 378			final Conversation conversation = getSelectedConversation();
 379			xmppConnectionService.getNotificationService().setOpenConversation(conversation);
 380			sendReadMarkerIfNecessary(conversation);
 381		}
 382		listAdapter.notifyDataSetChanged();
 383	}
 384
 385	public void sendReadMarkerIfNecessary(final Conversation conversation) {
 386		if (!mActivityPaused && !mUnprocessedNewIntent && conversation != null) {
 387			xmppConnectionService.sendReadMarker(conversation);
 388		}
 389	}
 390
 391	@Override
 392	public boolean onCreateOptionsMenu(Menu menu) {
 393		getMenuInflater().inflate(R.menu.conversations, menu);
 394		final MenuItem menuSecure = menu.findItem(R.id.action_security);
 395		final MenuItem menuArchive = menu.findItem(R.id.action_archive);
 396		final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 397		final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 398		final MenuItem menuAttach = menu.findItem(R.id.action_attach_file);
 399		final MenuItem menuClearHistory = menu.findItem(R.id.action_clear_history);
 400		final MenuItem menuAdd = menu.findItem(R.id.action_add);
 401		final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 402		final MenuItem menuMute = menu.findItem(R.id.action_mute);
 403		final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 404
 405		if (isConversationsOverviewVisable() && isConversationsOverviewHideable()) {
 406			menuArchive.setVisible(false);
 407			menuMucDetails.setVisible(false);
 408			menuContactDetails.setVisible(false);
 409			menuSecure.setVisible(false);
 410			menuInviteContact.setVisible(false);
 411			menuAttach.setVisible(false);
 412			menuClearHistory.setVisible(false);
 413			menuMute.setVisible(false);
 414			menuUnmute.setVisible(false);
 415		} else {
 416			menuAdd.setVisible(!isConversationsOverviewHideable());
 417			if (this.getSelectedConversation() != null) {
 418				if (this.getSelectedConversation().getNextEncryption() != Message.ENCRYPTION_NONE) {
 419					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 420						menuSecure.setIcon(R.drawable.ic_lock_white_24dp);
 421					} else {
 422						menuSecure.setIcon(R.drawable.ic_action_secure);
 423					}
 424				}
 425				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
 426					menuContactDetails.setVisible(false);
 427					menuAttach.setVisible(getSelectedConversation().getAccount().httpUploadAvailable() && getSelectedConversation().getMucOptions().participating());
 428					menuInviteContact.setVisible(getSelectedConversation().getMucOptions().canInvite());
 429					menuSecure.setVisible((Config.supportOpenPgp() || Config.supportOmemo()) && Config.multipleEncryptionChoices()); //only if pgp is supported we have a choice
 430				} else {
 431					menuContactDetails.setVisible(!this.getSelectedConversation().withSelf());
 432					menuMucDetails.setVisible(false);
 433					menuSecure.setVisible(Config.multipleEncryptionChoices());
 434					menuInviteContact.setVisible(xmppConnectionService != null && xmppConnectionService.findConferenceServer(getSelectedConversation().getAccount()) != null);
 435				}
 436				if (this.getSelectedConversation().isMuted()) {
 437					menuMute.setVisible(false);
 438				} else {
 439					menuUnmute.setVisible(false);
 440				}
 441			}
 442		}
 443		if (Config.supportOmemo()) {
 444			new Handler().post(new Runnable() {
 445				@Override
 446				public void run() {
 447					View view = findViewById(R.id.action_security);
 448					if (view != null) {
 449						view.setOnLongClickListener(new View.OnLongClickListener() {
 450							@Override
 451							public boolean onLongClick(View v) {
 452								return quickOmemoDebugger(getSelectedConversation());
 453							}
 454						});
 455					}
 456				}
 457			});
 458		}
 459		return super.onCreateOptionsMenu(menu);
 460	}
 461
 462	private boolean quickOmemoDebugger(Conversation c) {
 463		if (c != null) {
 464			boolean single = c.getMode() == Conversation.MODE_SINGLE;
 465			AxolotlService axolotlService = c.getAccount().getAxolotlService();
 466			Pair<AxolotlService.AxolotlCapability,Jid> capabilityJidPair = axolotlService.isConversationAxolotlCapableDetailed(c);
 467			switch (capabilityJidPair.first) {
 468				case MISSING_PRESENCE:
 469					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();
 470					return true;
 471				case MISSING_KEYS:
 472					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();
 473					return true;
 474				case WRONG_CONFIGURATION:
 475					Toast.makeText(ConversationActivity.this,R.string.wrong_conference_configuration, Toast.LENGTH_SHORT).show();
 476					return true;
 477				case NO_MEMBERS:
 478					Toast.makeText(ConversationActivity.this,R.string.this_conference_has_no_members, Toast.LENGTH_SHORT).show();
 479					return true;
 480			}
 481		}
 482		return false;
 483	}
 484
 485	protected void selectPresenceToAttachFile(final int attachmentChoice, final int encryption) {
 486		final Conversation conversation = getSelectedConversation();
 487		final Account account = conversation.getAccount();
 488		final OnPresenceSelected callback = new OnPresenceSelected() {
 489
 490			@Override
 491			public void onPresenceSelected() {
 492				Intent intent = new Intent();
 493				boolean chooser = false;
 494				String fallbackPackageId = null;
 495				switch (attachmentChoice) {
 496					case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 497						intent.setAction(Intent.ACTION_GET_CONTENT);
 498						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 499							intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
 500						}
 501						intent.setType("image/*");
 502						chooser = true;
 503						break;
 504					case ATTACHMENT_CHOICE_TAKE_PHOTO:
 505						Uri uri = xmppConnectionService.getFileBackend().getTakePhotoUri();
 506						intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 507						intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 508						intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
 509						intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
 510						mPendingImageUris.clear();
 511						mPendingImageUris.add(uri);
 512						break;
 513					case ATTACHMENT_CHOICE_CHOOSE_FILE:
 514						chooser = true;
 515						intent.setType("*/*");
 516						intent.addCategory(Intent.CATEGORY_OPENABLE);
 517						intent.setAction(Intent.ACTION_GET_CONTENT);
 518						break;
 519					case ATTACHMENT_CHOICE_RECORD_VOICE:
 520						intent.setAction(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
 521						fallbackPackageId = "eu.siacs.conversations.voicerecorder";
 522						break;
 523					case ATTACHMENT_CHOICE_LOCATION:
 524						intent.setAction("eu.siacs.conversations.location.request");
 525						fallbackPackageId = "eu.siacs.conversations.sharelocation";
 526						break;
 527				}
 528				if (intent.resolveActivity(getPackageManager()) != null) {
 529					if (chooser) {
 530						startActivityForResult(
 531								Intent.createChooser(intent, getString(R.string.perform_action_with)),
 532								attachmentChoice);
 533					} else {
 534						startActivityForResult(intent, attachmentChoice);
 535					}
 536				} else if (fallbackPackageId != null) {
 537					startActivity(getInstallApkIntent(fallbackPackageId));
 538				}
 539			}
 540		};
 541		if ((account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) && encryption != Message.ENCRYPTION_OTR) {
 542			conversation.setNextCounterpart(null);
 543			callback.onPresenceSelected();
 544		} else {
 545			selectPresence(conversation, callback);
 546		}
 547	}
 548
 549	private Intent getInstallApkIntent(final String packageId) {
 550		Intent intent = new Intent(Intent.ACTION_VIEW);
 551		intent.setData(Uri.parse("market://details?id=" + packageId));
 552		if (intent.resolveActivity(getPackageManager()) != null) {
 553			return intent;
 554		} else {
 555			intent.setData(Uri.parse("http://play.google.com/store/apps/details?id=" + packageId));
 556			return intent;
 557		}
 558	}
 559
 560	public void attachFile(final int attachmentChoice) {
 561		if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
 562			if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(attachmentChoice)) {
 563				return;
 564			}
 565		}
 566		switch (attachmentChoice) {
 567			case ATTACHMENT_CHOICE_LOCATION:
 568				getPreferences().edit().putString("recently_used_quick_action", "location").apply();
 569				break;
 570			case ATTACHMENT_CHOICE_RECORD_VOICE:
 571				getPreferences().edit().putString("recently_used_quick_action", "voice").apply();
 572				break;
 573			case ATTACHMENT_CHOICE_TAKE_PHOTO:
 574				getPreferences().edit().putString("recently_used_quick_action", "photo").apply();
 575				break;
 576			case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 577				getPreferences().edit().putString("recently_used_quick_action", "picture").apply();
 578				break;
 579		}
 580		final Conversation conversation = getSelectedConversation();
 581		final int encryption = conversation.getNextEncryption();
 582		final int mode = conversation.getMode();
 583		if (encryption == Message.ENCRYPTION_PGP) {
 584			if (hasPgp()) {
 585				if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
 586					xmppConnectionService.getPgpEngine().hasKey(
 587							conversation.getContact(),
 588							new UiCallback<Contact>() {
 589
 590								@Override
 591								public void userInputRequried(PendingIntent pi, Contact contact) {
 592									ConversationActivity.this.runIntent(pi, attachmentChoice);
 593								}
 594
 595								@Override
 596								public void success(Contact contact) {
 597									selectPresenceToAttachFile(attachmentChoice, encryption);
 598								}
 599
 600								@Override
 601								public void error(int error, Contact contact) {
 602									replaceToast(getString(error));
 603								}
 604							});
 605				} else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
 606					if (!conversation.getMucOptions().everybodyHasKeys()) {
 607						Toast warning = Toast
 608								.makeText(this,
 609										R.string.missing_public_keys,
 610										Toast.LENGTH_LONG);
 611						warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
 612						warning.show();
 613					}
 614					selectPresenceToAttachFile(attachmentChoice, encryption);
 615				} else {
 616					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 617							.findFragmentByTag("conversation");
 618					if (fragment != null) {
 619						fragment.showNoPGPKeyDialog(false,
 620								new OnClickListener() {
 621
 622									@Override
 623									public void onClick(DialogInterface dialog,
 624														int which) {
 625										conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 626										xmppConnectionService.updateConversation(conversation);
 627										selectPresenceToAttachFile(attachmentChoice, Message.ENCRYPTION_NONE);
 628									}
 629								});
 630					}
 631				}
 632			} else {
 633				showInstallPgpDialog();
 634			}
 635		} else {
 636			if (encryption != Message.ENCRYPTION_AXOLOTL || !trustKeysIfNeeded(REQUEST_TRUST_KEYS_MENU, attachmentChoice)) {
 637				selectPresenceToAttachFile(attachmentChoice, encryption);
 638			}
 639		}
 640	}
 641
 642	@Override
 643	public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 644		if (grantResults.length > 0)
 645			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 646				if (requestCode == REQUEST_START_DOWNLOAD) {
 647					if (this.mPendingDownloadableMessage != null) {
 648						startDownloadable(this.mPendingDownloadableMessage);
 649					}
 650				} else {
 651					attachFile(requestCode);
 652				}
 653			} else {
 654				Toast.makeText(this, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
 655			}
 656	}
 657
 658	public void startDownloadable(Message message) {
 659		if (!Config.ONLY_INTERNAL_STORAGE && !hasStoragePermission(ConversationActivity.REQUEST_START_DOWNLOAD)) {
 660			this.mPendingDownloadableMessage = message;
 661			return;
 662		}
 663		Transferable transferable = message.getTransferable();
 664		if (transferable != null) {
 665			if (!transferable.start()) {
 666				Toast.makeText(this, R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
 667			}
 668		} else if (message.treatAsDownloadable()) {
 669			xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
 670		}
 671	}
 672
 673	@Override
 674	public boolean onOptionsItemSelected(final MenuItem item) {
 675		if (item.getItemId() == android.R.id.home) {
 676			showConversationsOverview();
 677			return true;
 678		} else if (item.getItemId() == R.id.action_add) {
 679			startActivity(new Intent(this, StartConversationActivity.class));
 680			return true;
 681		} else if (getSelectedConversation() != null) {
 682			switch (item.getItemId()) {
 683				case R.id.action_attach_file:
 684					attachFileDialog();
 685					break;
 686				case R.id.action_archive:
 687					this.endConversation(getSelectedConversation());
 688					break;
 689				case R.id.action_contact_details:
 690					switchToContactDetails(getSelectedConversation().getContact());
 691					break;
 692				case R.id.action_muc_details:
 693					Intent intent = new Intent(this,
 694							ConferenceDetailsActivity.class);
 695					intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 696					intent.putExtra("uuid", getSelectedConversation().getUuid());
 697					startActivity(intent);
 698					break;
 699				case R.id.action_invite:
 700					inviteToConversation(getSelectedConversation());
 701					break;
 702				case R.id.action_security:
 703					selectEncryptionDialog(getSelectedConversation());
 704					break;
 705				case R.id.action_clear_history:
 706					clearHistoryDialog(getSelectedConversation());
 707					break;
 708				case R.id.action_mute:
 709					muteConversationDialog(getSelectedConversation());
 710					break;
 711				case R.id.action_unmute:
 712					unmuteConversation(getSelectedConversation());
 713					break;
 714				case R.id.action_block:
 715					BlockContactDialog.show(this, getSelectedConversation());
 716					break;
 717				case R.id.action_unblock:
 718					BlockContactDialog.show(this, getSelectedConversation());
 719					break;
 720				default:
 721					break;
 722			}
 723			return super.onOptionsItemSelected(item);
 724		} else {
 725			return super.onOptionsItemSelected(item);
 726		}
 727	}
 728
 729	public void endConversation(Conversation conversation) {
 730		endConversation(conversation, true, true);
 731	}
 732
 733	public void endConversation(Conversation conversation, boolean showOverview, boolean reinit) {
 734		if (showOverview) {
 735			showConversationsOverview();
 736		}
 737		xmppConnectionService.archiveConversation(conversation);
 738		if (reinit) {
 739			if (conversationList.size() > 0) {
 740				setSelectedConversation(conversationList.get(0));
 741				this.mConversationFragment.reInit(getSelectedConversation());
 742			} else {
 743				setSelectedConversation(null);
 744				if (mRedirected.compareAndSet(false, true)) {
 745					Intent intent = new Intent(this, StartConversationActivity.class);
 746					intent.putExtra("init", true);
 747					startActivity(intent);
 748					finish();
 749				}
 750			}
 751		}
 752	}
 753
 754	@SuppressLint("InflateParams")
 755	protected void clearHistoryDialog(final Conversation conversation) {
 756		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 757		builder.setTitle(getString(R.string.clear_conversation_history));
 758		View dialogView = getLayoutInflater().inflate(
 759				R.layout.dialog_clear_history, null);
 760		final CheckBox endConversationCheckBox = (CheckBox) dialogView
 761				.findViewById(R.id.end_conversation_checkbox);
 762		builder.setView(dialogView);
 763		builder.setNegativeButton(getString(R.string.cancel), null);
 764		builder.setPositiveButton(getString(R.string.delete_messages),
 765				new OnClickListener() {
 766
 767					@Override
 768					public void onClick(DialogInterface dialog, int which) {
 769						ConversationActivity.this.xmppConnectionService.clearConversationHistory(conversation);
 770						if (endConversationCheckBox.isChecked()) {
 771							endConversation(conversation);
 772						} else {
 773							updateConversationList();
 774							ConversationActivity.this.mConversationFragment.updateMessages();
 775						}
 776					}
 777				});
 778		builder.create().show();
 779	}
 780
 781	protected void attachFileDialog() {
 782		View menuAttachFile = findViewById(R.id.action_attach_file);
 783		if (menuAttachFile == null) {
 784			return;
 785		}
 786		PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
 787		attachFilePopup.inflate(R.menu.attachment_choices);
 788		if (new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION).resolveActivity(getPackageManager()) == null) {
 789			attachFilePopup.getMenu().findItem(R.id.attach_record_voice).setVisible(false);
 790		}
 791		if (new Intent("eu.siacs.conversations.location.request").resolveActivity(getPackageManager()) == null) {
 792			attachFilePopup.getMenu().findItem(R.id.attach_location).setVisible(false);
 793		}
 794		attachFilePopup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 795
 796			@Override
 797			public boolean onMenuItemClick(MenuItem item) {
 798				switch (item.getItemId()) {
 799					case R.id.attach_choose_picture:
 800						attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 801						break;
 802					case R.id.attach_take_picture:
 803						attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
 804						break;
 805					case R.id.attach_choose_file:
 806						attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
 807						break;
 808					case R.id.attach_record_voice:
 809						attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
 810						break;
 811					case R.id.attach_location:
 812						attachFile(ATTACHMENT_CHOICE_LOCATION);
 813						break;
 814				}
 815				return false;
 816			}
 817		});
 818		UIHelper.showIconsInPopup(attachFilePopup);
 819		attachFilePopup.show();
 820	}
 821
 822	public void verifyOtrSessionDialog(final Conversation conversation, View view) {
 823		if (!conversation.hasValidOtrSession() || conversation.getOtrSession().getSessionStatus() != SessionStatus.ENCRYPTED) {
 824			Toast.makeText(this, R.string.otr_session_not_started, Toast.LENGTH_LONG).show();
 825			return;
 826		}
 827		if (view == null) {
 828			return;
 829		}
 830		PopupMenu popup = new PopupMenu(this, view);
 831		popup.inflate(R.menu.verification_choices);
 832		popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 833			@Override
 834			public boolean onMenuItemClick(MenuItem menuItem) {
 835				Intent intent = new Intent(ConversationActivity.this, VerifyOTRActivity.class);
 836				intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
 837				intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
 838				intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 839				switch (menuItem.getItemId()) {
 840					case R.id.scan_fingerprint:
 841						intent.putExtra("mode", VerifyOTRActivity.MODE_SCAN_FINGERPRINT);
 842						break;
 843					case R.id.ask_question:
 844						intent.putExtra("mode", VerifyOTRActivity.MODE_ASK_QUESTION);
 845						break;
 846					case R.id.manual_verification:
 847						intent.putExtra("mode", VerifyOTRActivity.MODE_MANUAL_VERIFICATION);
 848						break;
 849				}
 850				startActivity(intent);
 851				return true;
 852			}
 853		});
 854		popup.show();
 855	}
 856
 857	protected void selectEncryptionDialog(final Conversation conversation) {
 858		View menuItemView = findViewById(R.id.action_security);
 859		if (menuItemView == null) {
 860			return;
 861		}
 862		PopupMenu popup = new PopupMenu(this, menuItemView);
 863		final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 864				.findFragmentByTag("conversation");
 865		if (fragment != null) {
 866			popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 867
 868				@Override
 869				public boolean onMenuItemClick(MenuItem item) {
 870					switch (item.getItemId()) {
 871						case R.id.encryption_choice_none:
 872							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 873							item.setChecked(true);
 874							break;
 875						case R.id.encryption_choice_otr:
 876							conversation.setNextEncryption(Message.ENCRYPTION_OTR);
 877							item.setChecked(true);
 878							break;
 879						case R.id.encryption_choice_pgp:
 880							if (hasPgp()) {
 881								if (conversation.getAccount().getPgpSignature() != null) {
 882									conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 883									item.setChecked(true);
 884								} else {
 885									announcePgp(conversation.getAccount(), conversation, onOpenPGPKeyPublished);
 886								}
 887							} else {
 888								showInstallPgpDialog();
 889							}
 890							break;
 891						case R.id.encryption_choice_axolotl:
 892							Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
 893									+ "Enabled axolotl for Contact " + conversation.getContact().getJid());
 894							conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
 895							item.setChecked(true);
 896							break;
 897						default:
 898							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 899							break;
 900					}
 901					xmppConnectionService.updateConversation(conversation);
 902					fragment.updateChatMsgHint();
 903					invalidateOptionsMenu();
 904					refreshUi();
 905					return true;
 906				}
 907			});
 908			popup.inflate(R.menu.encryption_choices);
 909			MenuItem otr = popup.getMenu().findItem(R.id.encryption_choice_otr);
 910			MenuItem none = popup.getMenu().findItem(R.id.encryption_choice_none);
 911			MenuItem pgp = popup.getMenu().findItem(R.id.encryption_choice_pgp);
 912			MenuItem axolotl = popup.getMenu().findItem(R.id.encryption_choice_axolotl);
 913			pgp.setVisible(Config.supportOpenPgp());
 914			none.setVisible(Config.supportUnencrypted() || conversation.getMode() == Conversation.MODE_MULTI);
 915			otr.setVisible(Config.supportOtr());
 916			axolotl.setVisible(Config.supportOmemo());
 917			if (conversation.getMode() == Conversation.MODE_MULTI) {
 918				otr.setVisible(false);
 919			}
 920			if (!conversation.getAccount().getAxolotlService().isConversationAxolotlCapable(conversation)) {
 921				axolotl.setEnabled(false);
 922			}
 923			switch (conversation.getNextEncryption()) {
 924				case Message.ENCRYPTION_NONE:
 925					none.setChecked(true);
 926					break;
 927				case Message.ENCRYPTION_OTR:
 928					otr.setChecked(true);
 929					break;
 930				case Message.ENCRYPTION_PGP:
 931					pgp.setChecked(true);
 932					break;
 933				case Message.ENCRYPTION_AXOLOTL:
 934					axolotl.setChecked(true);
 935					break;
 936				default:
 937					none.setChecked(true);
 938					break;
 939			}
 940			popup.show();
 941		}
 942	}
 943
 944	protected void muteConversationDialog(final Conversation conversation) {
 945		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 946		builder.setTitle(R.string.disable_notifications);
 947		final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
 948		builder.setItems(R.array.mute_options_descriptions,
 949				new OnClickListener() {
 950
 951					@Override
 952					public void onClick(final DialogInterface dialog, final int which) {
 953						final long till;
 954						if (durations[which] == -1) {
 955							till = Long.MAX_VALUE;
 956						} else {
 957							till = System.currentTimeMillis() + (durations[which] * 1000);
 958						}
 959						conversation.setMutedTill(till);
 960						ConversationActivity.this.xmppConnectionService.updateConversation(conversation);
 961						updateConversationList();
 962						ConversationActivity.this.mConversationFragment.updateMessages();
 963						invalidateOptionsMenu();
 964					}
 965				});
 966		builder.create().show();
 967	}
 968
 969	public void unmuteConversation(final Conversation conversation) {
 970		conversation.setMutedTill(0);
 971		this.xmppConnectionService.updateConversation(conversation);
 972		updateConversationList();
 973		ConversationActivity.this.mConversationFragment.updateMessages();
 974		invalidateOptionsMenu();
 975	}
 976
 977	@Override
 978	public void onBackPressed() {
 979		if (!isConversationsOverviewVisable()) {
 980			showConversationsOverview();
 981		} else {
 982			super.onBackPressed();
 983		}
 984	}
 985
 986	@Override
 987	public boolean onKeyUp(int key, KeyEvent event) {
 988		int rotation = getWindowManager().getDefaultDisplay().getRotation();
 989		final int upKey;
 990		final int downKey;
 991		switch (rotation) {
 992			case Surface.ROTATION_90:
 993				upKey = KeyEvent.KEYCODE_DPAD_LEFT;
 994				downKey = KeyEvent.KEYCODE_DPAD_RIGHT;
 995				break;
 996			case Surface.ROTATION_180:
 997				upKey = KeyEvent.KEYCODE_DPAD_DOWN;
 998				downKey = KeyEvent.KEYCODE_DPAD_UP;
 999				break;
1000			case Surface.ROTATION_270:
1001				upKey = KeyEvent.KEYCODE_DPAD_RIGHT;
1002				downKey = KeyEvent.KEYCODE_DPAD_LEFT;
1003				break;
1004			case Surface.ROTATION_0:
1005			default:
1006				upKey = KeyEvent.KEYCODE_DPAD_UP;
1007				downKey = KeyEvent.KEYCODE_DPAD_DOWN;
1008		}
1009		final boolean modifier = event.isCtrlPressed() || (event.getMetaState() & KeyEvent.META_ALT_LEFT_ON) != 0;
1010		if (modifier && key == KeyEvent.KEYCODE_TAB && isConversationsOverviewHideable()) {
1011			toggleConversationsOverview();
1012			return true;
1013		} else if (modifier && key == KeyEvent.KEYCODE_SPACE) {
1014			startActivity(new Intent(this, StartConversationActivity.class));
1015			return true;
1016		} else if (modifier && key == downKey) {
1017			if (isConversationsOverviewHideable() && !isConversationsOverviewVisable()) {
1018				showConversationsOverview();
1019				;
1020			}
1021			return selectDownConversation();
1022		} else if (modifier && key == upKey) {
1023			if (isConversationsOverviewHideable() && !isConversationsOverviewVisable()) {
1024				showConversationsOverview();
1025			}
1026			return selectUpConversation();
1027		} else if (modifier && key == KeyEvent.KEYCODE_1) {
1028			return openConversationByIndex(0);
1029		} else if (modifier && key == KeyEvent.KEYCODE_2) {
1030			return openConversationByIndex(1);
1031		} else if (modifier && key == KeyEvent.KEYCODE_3) {
1032			return openConversationByIndex(2);
1033		} else if (modifier && key == KeyEvent.KEYCODE_4) {
1034			return openConversationByIndex(3);
1035		} else if (modifier && key == KeyEvent.KEYCODE_5) {
1036			return openConversationByIndex(4);
1037		} else if (modifier && key == KeyEvent.KEYCODE_6) {
1038			return openConversationByIndex(5);
1039		} else if (modifier && key == KeyEvent.KEYCODE_7) {
1040			return openConversationByIndex(6);
1041		} else if (modifier && key == KeyEvent.KEYCODE_8) {
1042			return openConversationByIndex(7);
1043		} else if (modifier && key == KeyEvent.KEYCODE_9) {
1044			return openConversationByIndex(8);
1045		} else if (modifier && key == KeyEvent.KEYCODE_0) {
1046			return openConversationByIndex(9);
1047		} else {
1048			return super.onKeyUp(key, event);
1049		}
1050	}
1051
1052	private void toggleConversationsOverview() {
1053		if (isConversationsOverviewVisable()) {
1054			hideConversationsOverview();
1055			if (mConversationFragment != null) {
1056				mConversationFragment.setFocusOnInputField();
1057			}
1058		} else {
1059			showConversationsOverview();
1060		}
1061	}
1062
1063	private boolean selectUpConversation() {
1064		if (this.mSelectedConversation != null) {
1065			int index = this.conversationList.indexOf(this.mSelectedConversation);
1066			if (index > 0) {
1067				return openConversationByIndex(index - 1);
1068			}
1069		}
1070		return false;
1071	}
1072
1073	private boolean selectDownConversation() {
1074		if (this.mSelectedConversation != null) {
1075			int index = this.conversationList.indexOf(this.mSelectedConversation);
1076			if (index != -1 && index < this.conversationList.size() - 1) {
1077				return openConversationByIndex(index + 1);
1078			}
1079		}
1080		return false;
1081	}
1082
1083	private boolean openConversationByIndex(int index) {
1084		try {
1085			this.conversationWasSelectedByKeyboard = true;
1086			setSelectedConversation(this.conversationList.get(index));
1087			this.mConversationFragment.reInit(getSelectedConversation());
1088			if (index > listView.getLastVisiblePosition() - 1 || index < listView.getFirstVisiblePosition() + 1) {
1089				this.listView.setSelection(index);
1090			}
1091			openConversation();
1092			return true;
1093		} catch (IndexOutOfBoundsException e) {
1094			return false;
1095		}
1096	}
1097
1098	@Override
1099	protected void onNewIntent(final Intent intent) {
1100		if (intent != null && ACTION_VIEW_CONVERSATION.equals(intent.getAction())) {
1101			mOpenConversation = null;
1102			mUnprocessedNewIntent = true;
1103			if (xmppConnectionServiceBound) {
1104				handleViewConversationIntent(intent);
1105				intent.setAction(Intent.ACTION_MAIN);
1106			} else {
1107				setIntent(intent);
1108			}
1109		}
1110	}
1111
1112	@Override
1113	public void onStart() {
1114		super.onStart();
1115		this.mRedirected.set(false);
1116		if (this.xmppConnectionServiceBound) {
1117			this.onBackendConnected();
1118		}
1119		if (conversationList.size() >= 1) {
1120			this.onConversationUpdate();
1121		}
1122	}
1123
1124	@Override
1125	public void onPause() {
1126		listView.discardUndo();
1127		super.onPause();
1128		this.mActivityPaused = true;
1129	}
1130
1131	@Override
1132	public void onResume() {
1133		super.onResume();
1134		final int theme = findTheme();
1135		final boolean usingEnterKey = usingEnterKey();
1136		if (this.mTheme != theme || usingEnterKey != mUsingEnterKey) {
1137			recreate();
1138		}
1139		this.mActivityPaused = false;
1140
1141
1142		if (!isConversationsOverviewVisable() || !isConversationsOverviewHideable()) {
1143			sendReadMarkerIfNecessary(getSelectedConversation());
1144		}
1145
1146	}
1147
1148	@Override
1149	public void onSaveInstanceState(final Bundle savedInstanceState) {
1150		Conversation conversation = getSelectedConversation();
1151		if (conversation != null) {
1152			savedInstanceState.putString(STATE_OPEN_CONVERSATION, conversation.getUuid());
1153			Pair<Integer,Integer> scrollPosition = mConversationFragment.getScrollPosition();
1154			if (scrollPosition != null) {
1155				savedInstanceState.putInt(STATE_FIRST_VISIBLE, scrollPosition.first);
1156				savedInstanceState.putInt(STATE_OFFSET_FROM_TOP, scrollPosition.second);
1157			}
1158		} else {
1159			savedInstanceState.remove(STATE_OPEN_CONVERSATION);
1160		}
1161		savedInstanceState.putBoolean(STATE_PANEL_OPEN, isConversationsOverviewVisable());
1162		if (this.mPendingImageUris.size() >= 1) {
1163			Log.d(Config.LOGTAG,"ConversationsActivity.onSaveInstanceState() - saving pending image uri");
1164			savedInstanceState.putString(STATE_PENDING_URI, this.mPendingImageUris.get(0).toString());
1165		} else {
1166			savedInstanceState.remove(STATE_PENDING_URI);
1167		}
1168		super.onSaveInstanceState(savedInstanceState);
1169	}
1170
1171	private void clearPending() {
1172		mPendingImageUris.clear();
1173		mPendingFileUris.clear();
1174		mPendingGeoUri = null;
1175		mPostponedActivityResult = null;
1176	}
1177
1178	private void redirectToStartConversationActivity() {
1179		Account pendingAccount = xmppConnectionService.getPendingAccount();
1180		if (pendingAccount == null) {
1181			Intent startConversationActivity = new Intent(this, StartConversationActivity.class);
1182			startConversationActivity.putExtra("init", true);
1183			startActivity(startConversationActivity);
1184		} else {
1185			switchToAccount(pendingAccount, true);
1186		}
1187		finish();
1188	}
1189
1190	@Override
1191	void onBackendConnected() {
1192		this.xmppConnectionService.getNotificationService().setIsInForeground(true);
1193		updateConversationList();
1194
1195		if (mPendingConferenceInvite != null) {
1196			if (mPendingConferenceInvite.execute(this)) {
1197				mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
1198				mToast.show();
1199			}
1200			mPendingConferenceInvite = null;
1201		}
1202
1203		final Intent intent = getIntent();
1204
1205		if (xmppConnectionService.getAccounts().size() == 0) {
1206			if (mRedirected.compareAndSet(false, true)) {
1207				if (Config.X509_VERIFICATION) {
1208					startActivity(new Intent(this, ManageAccountActivity.class));
1209				} else if (Config.MAGIC_CREATE_DOMAIN != null) {
1210					startActivity(new Intent(this, WelcomeActivity.class));
1211				} else {
1212					Intent editAccount = new Intent(this, EditAccountActivity.class);
1213					editAccount.putExtra("init",true);
1214					startActivity(editAccount);
1215				}
1216				finish();
1217			}
1218		} else if (conversationList.size() <= 0) {
1219			if (mRedirected.compareAndSet(false, true)) {
1220				redirectToStartConversationActivity();
1221			}
1222		} else if (selectConversationByUuid(mOpenConversation)) {
1223			if (mPanelOpen) {
1224				showConversationsOverview();
1225			} else {
1226				if (isConversationsOverviewHideable()) {
1227					openConversation();
1228					updateActionBarTitle(true);
1229				}
1230			}
1231			if (this.mConversationFragment.reInit(getSelectedConversation())) {
1232				Log.d(Config.LOGTAG,"setting scroll position on fragment");
1233				this.mConversationFragment.setScrollPosition(mScrollPosition);
1234			}
1235			mOpenConversation = null;
1236		} else if (intent != null && ACTION_VIEW_CONVERSATION.equals(intent.getAction())) {
1237			clearPending();
1238			handleViewConversationIntent(intent);
1239			intent.setAction(Intent.ACTION_MAIN);
1240		} else if (getSelectedConversation() == null) {
1241			reInitLatestConversation();
1242		} else {
1243			this.mConversationFragment.messageListAdapter.updatePreferences();
1244			this.mConversationFragment.messagesView.invalidateViews();
1245			this.mConversationFragment.setupIme();
1246		}
1247
1248		if (this.mPostponedActivityResult != null) {
1249			this.onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
1250		}
1251
1252		final boolean stopping = isStopping();
1253
1254		if (!forbidProcessingPendings) {
1255			for (Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
1256				Uri foo = i.next();
1257				Log.d(Config.LOGTAG,"ConversationsActivity.onBackendConnected() - attaching image to conversations. stopping="+Boolean.toString(stopping));
1258				attachImageToConversation(getSelectedConversation(), foo);
1259			}
1260
1261			for (Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
1262				Log.d(Config.LOGTAG,"ConversationsActivity.onBackendConnected() - attaching file to conversations. stopping="+Boolean.toString(stopping));
1263				attachFileToConversation(getSelectedConversation(), i.next());
1264			}
1265
1266			if (mPendingGeoUri != null) {
1267				attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
1268				mPendingGeoUri = null;
1269			}
1270		}
1271		forbidProcessingPendings = false;
1272
1273		if (!ExceptionHelper.checkForCrash(this, this.xmppConnectionService)) {
1274			openBatteryOptimizationDialogIfNeeded();
1275		}
1276		if (isConversationsOverviewVisable() && isConversationsOverviewHideable()) {
1277			xmppConnectionService.getNotificationService().setOpenConversation(null);
1278		} else {
1279			xmppConnectionService.getNotificationService().setOpenConversation(getSelectedConversation());
1280		}
1281	}
1282
1283	private boolean isStopping() {
1284		if (Build.VERSION.SDK_INT >= 17) {
1285			return isFinishing() || isDestroyed();
1286		} else {
1287			return isFinishing();
1288		}
1289	}
1290
1291	private void reInitLatestConversation() {
1292		showConversationsOverview();
1293		clearPending();
1294		setSelectedConversation(conversationList.get(0));
1295		this.mConversationFragment.reInit(getSelectedConversation());
1296	}
1297
1298	private void handleViewConversationIntent(final Intent intent) {
1299		final String uuid = intent.getStringExtra(CONVERSATION);
1300		final String downloadUuid = intent.getStringExtra(EXTRA_DOWNLOAD_UUID);
1301		final String text = intent.getStringExtra(TEXT);
1302		final String nick = intent.getStringExtra(NICK);
1303		final boolean pm = intent.getBooleanExtra(PRIVATE_MESSAGE, false);
1304		if (selectConversationByUuid(uuid)) {
1305			this.mConversationFragment.reInit(getSelectedConversation());
1306			if (nick != null) {
1307				if (pm) {
1308					Jid jid = getSelectedConversation().getJid();
1309					try {
1310						Jid next = Jid.fromParts(jid.getLocalpart(), jid.getDomainpart(), nick);
1311						this.mConversationFragment.privateMessageWith(next);
1312					} catch (final InvalidJidException ignored) {
1313						//do nothing
1314					}
1315				} else {
1316					this.mConversationFragment.highlightInConference(nick);
1317				}
1318			} else {
1319				this.mConversationFragment.appendText(text);
1320			}
1321			hideConversationsOverview();
1322			mUnprocessedNewIntent = false;
1323			openConversation();
1324			if (mContentView instanceof SlidingPaneLayout) {
1325				updateActionBarTitle(true); //fixes bug where slp isn't properly closed yet
1326			}
1327			if (downloadUuid != null) {
1328				final Message message = mSelectedConversation.findMessageWithFileAndUuid(downloadUuid);
1329				if (message != null) {
1330					startDownloadable(message);
1331				}
1332			}
1333		} else {
1334			mUnprocessedNewIntent = false;
1335		}
1336	}
1337
1338	private boolean selectConversationByUuid(String uuid) {
1339		if (uuid == null) {
1340			return false;
1341		}
1342		for (Conversation aConversationList : conversationList) {
1343			if (aConversationList.getUuid().equals(uuid)) {
1344				setSelectedConversation(aConversationList);
1345				return true;
1346			}
1347		}
1348		return false;
1349	}
1350
1351	@Override
1352	protected void unregisterListeners() {
1353		super.unregisterListeners();
1354		xmppConnectionService.getNotificationService().setOpenConversation(null);
1355	}
1356
1357	@SuppressLint("NewApi")
1358	private static List<Uri> extractUriFromIntent(final Intent intent) {
1359		List<Uri> uris = new ArrayList<>();
1360		if (intent == null) {
1361			return uris;
1362		}
1363		Uri uri = intent.getData();
1364		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && uri == null) {
1365			final ClipData clipData = intent.getClipData();
1366			if (clipData != null) {
1367				for (int i = 0; i < clipData.getItemCount(); ++i) {
1368					uris.add(clipData.getItemAt(i).getUri());
1369				}
1370			}
1371		} else {
1372			uris.add(uri);
1373		}
1374		return uris;
1375	}
1376
1377	@Override
1378	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
1379		super.onActivityResult(requestCode, resultCode, data);
1380		if (resultCode == RESULT_OK) {
1381			if (requestCode == REQUEST_DECRYPT_PGP) {
1382				mConversationFragment.onActivityResult(requestCode, resultCode, data);
1383			} else if (requestCode == REQUEST_CHOOSE_PGP_ID) {
1384				// the user chose OpenPGP for encryption and selected his key in the PGP provider
1385				if (xmppConnectionServiceBound) {
1386					if (data.getExtras().containsKey(OpenPgpApi.EXTRA_SIGN_KEY_ID)) {
1387						// associate selected PGP keyId with the account
1388						mSelectedConversation.getAccount().setPgpSignId(data.getExtras().getLong(OpenPgpApi.EXTRA_SIGN_KEY_ID));
1389						// we need to announce the key as described in XEP-027
1390						announcePgp(mSelectedConversation.getAccount(), null, onOpenPGPKeyPublished);
1391					} else {
1392						choosePgpSignId(mSelectedConversation.getAccount());
1393					}
1394					this.mPostponedActivityResult = null;
1395				} else {
1396					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1397				}
1398			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
1399				if (xmppConnectionServiceBound) {
1400					announcePgp(mSelectedConversation.getAccount(), mSelectedConversation, onOpenPGPKeyPublished);
1401					this.mPostponedActivityResult = null;
1402				} else {
1403					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1404				}
1405			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
1406				mPendingImageUris.clear();
1407				mPendingImageUris.addAll(extractUriFromIntent(data));
1408				if (xmppConnectionServiceBound) {
1409					for (Iterator<Uri> i = mPendingImageUris.iterator(); i.hasNext(); i.remove()) {
1410						Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching image to conversations. CHOOSE_IMAGE");
1411						attachImageToConversation(getSelectedConversation(), i.next());
1412					}
1413				}
1414			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_FILE || requestCode == ATTACHMENT_CHOICE_RECORD_VOICE) {
1415				final List<Uri> uris = extractUriFromIntent(data);
1416				final Conversation c = getSelectedConversation();
1417				final OnPresenceSelected callback = new OnPresenceSelected() {
1418					@Override
1419					public void onPresenceSelected() {
1420						mPendingFileUris.clear();
1421						mPendingFileUris.addAll(uris);
1422						if (xmppConnectionServiceBound) {
1423							for (Iterator<Uri> i = mPendingFileUris.iterator(); i.hasNext(); i.remove()) {
1424								Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE");
1425								attachFileToConversation(c, i.next());
1426							}
1427						}
1428					}
1429				};
1430				if (c == null || c.getMode() == Conversation.MODE_MULTI
1431						|| FileBackend.allFilesUnderSize(this, uris, getMaxHttpUploadSize(c))
1432						|| c.getNextEncryption() == Message.ENCRYPTION_OTR) {
1433					callback.onPresenceSelected();
1434				} else {
1435					selectPresence(c, callback);
1436				}
1437			} else if (requestCode == ATTACHMENT_CHOICE_TAKE_PHOTO) {
1438				if (mPendingImageUris.size() == 1) {
1439					Uri uri = FileBackend.getIndexableTakePhotoUri(mPendingImageUris.get(0));
1440					mPendingImageUris.set(0, uri);
1441					if (xmppConnectionServiceBound) {
1442						Log.d(Config.LOGTAG,"ConversationsActivity.onActivityResult() - attaching image to conversations. TAKE_PHOTO");
1443						attachImageToConversation(getSelectedConversation(), uri);
1444						mPendingImageUris.clear();
1445					}
1446					if (!Config.ONLY_INTERNAL_STORAGE) {
1447						Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
1448						intent.setData(uri);
1449						sendBroadcast(intent);
1450					}
1451				} else {
1452					mPendingImageUris.clear();
1453				}
1454			} else if (requestCode == ATTACHMENT_CHOICE_LOCATION) {
1455				double latitude = data.getDoubleExtra("latitude", 0);
1456				double longitude = data.getDoubleExtra("longitude", 0);
1457				this.mPendingGeoUri = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
1458				if (xmppConnectionServiceBound) {
1459					attachLocationToConversation(getSelectedConversation(), mPendingGeoUri);
1460					this.mPendingGeoUri = null;
1461				}
1462			} else if (requestCode == REQUEST_TRUST_KEYS_TEXT || requestCode == REQUEST_TRUST_KEYS_MENU) {
1463				this.forbidProcessingPendings = !xmppConnectionServiceBound;
1464				if (xmppConnectionServiceBound) {
1465					mConversationFragment.onActivityResult(requestCode, resultCode, data);
1466					this.mPostponedActivityResult = null;
1467				} else {
1468					this.mPostponedActivityResult = new Pair<>(requestCode, data);
1469				}
1470
1471			}
1472		} else {
1473			mPendingImageUris.clear();
1474			mPendingFileUris.clear();
1475			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1476				mConversationFragment.onActivityResult(requestCode, resultCode, data);
1477			}
1478			if (requestCode == REQUEST_BATTERY_OP) {
1479				setNeverAskForBatteryOptimizationsAgain();
1480			}
1481		}
1482	}
1483
1484	private long getMaxHttpUploadSize(Conversation conversation) {
1485		final XmppConnection connection = conversation.getAccount().getXmppConnection();
1486		return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
1487	}
1488
1489	private void setNeverAskForBatteryOptimizationsAgain() {
1490		getPreferences().edit().putBoolean("show_battery_optimization", false).apply();
1491	}
1492
1493	private void openBatteryOptimizationDialogIfNeeded() {
1494		if (hasAccountWithoutPush()
1495				&& isOptimizingBattery()
1496				&& getPreferences().getBoolean("show_battery_optimization", true)) {
1497			AlertDialog.Builder builder = new AlertDialog.Builder(this);
1498			builder.setTitle(R.string.battery_optimizations_enabled);
1499			builder.setMessage(R.string.battery_optimizations_enabled_dialog);
1500			builder.setPositiveButton(R.string.next, new OnClickListener() {
1501				@Override
1502				public void onClick(DialogInterface dialog, int which) {
1503					Intent intent = new Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
1504					Uri uri = Uri.parse("package:" + getPackageName());
1505					intent.setData(uri);
1506					try {
1507						startActivityForResult(intent, REQUEST_BATTERY_OP);
1508					} catch (ActivityNotFoundException e) {
1509						Toast.makeText(ConversationActivity.this, R.string.device_does_not_support_battery_op, Toast.LENGTH_SHORT).show();
1510					}
1511				}
1512			});
1513			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1514				builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
1515					@Override
1516					public void onDismiss(DialogInterface dialog) {
1517						setNeverAskForBatteryOptimizationsAgain();
1518					}
1519				});
1520			}
1521			builder.create().show();
1522		}
1523	}
1524
1525	private boolean hasAccountWithoutPush() {
1526		for(Account account : xmppConnectionService.getAccounts()) {
1527			if (account.getStatus() != Account.State.DISABLED
1528					&& !xmppConnectionService.getPushManagementService().availableAndUseful(account)) {
1529				return true;
1530			}
1531		}
1532		return false;
1533	}
1534
1535	private void attachLocationToConversation(Conversation conversation, Uri uri) {
1536		if (conversation == null) {
1537			return;
1538		}
1539		xmppConnectionService.attachLocationToConversation(conversation,uri, new UiCallback<Message>() {
1540
1541			@Override
1542			public void success(Message message) {
1543				xmppConnectionService.sendMessage(message);
1544			}
1545
1546			@Override
1547			public void error(int errorCode, Message object) {
1548
1549			}
1550
1551			@Override
1552			public void userInputRequried(PendingIntent pi, Message object) {
1553
1554			}
1555		});
1556	}
1557
1558	private void attachFileToConversation(Conversation conversation, Uri uri) {
1559		if (conversation == null) {
1560			return;
1561		}
1562		final Toast prepareFileToast = Toast.makeText(getApplicationContext(),getText(R.string.preparing_file), Toast.LENGTH_LONG);
1563		prepareFileToast.show();
1564		xmppConnectionService.attachFileToConversation(conversation, uri, new UiInformableCallback<Message>() {
1565			@Override
1566			public void inform(final String text) {
1567				hidePrepareFileToast(prepareFileToast);
1568				runOnUiThread(new Runnable() {
1569					@Override
1570					public void run() {
1571						replaceToast(text);
1572					}
1573				});
1574			}
1575
1576			@Override
1577			public void success(Message message) {
1578				runOnUiThread(new Runnable() {
1579					@Override
1580					public void run() {
1581						hideToast();
1582					}
1583				});
1584				hidePrepareFileToast(prepareFileToast);
1585				xmppConnectionService.sendMessage(message);
1586			}
1587
1588			@Override
1589			public void error(final int errorCode, Message message) {
1590				hidePrepareFileToast(prepareFileToast);
1591				runOnUiThread(new Runnable() {
1592					@Override
1593					public void run() {
1594						replaceToast(getString(errorCode));
1595					}
1596				});
1597
1598			}
1599
1600			@Override
1601			public void userInputRequried(PendingIntent pi, Message message) {
1602				hidePrepareFileToast(prepareFileToast);
1603			}
1604		});
1605	}
1606
1607	public void attachImageToConversation(Uri uri) {
1608		this.attachImageToConversation(getSelectedConversation(), uri);
1609	}
1610
1611	private void attachImageToConversation(Conversation conversation, Uri uri) {
1612		if (conversation == null) {
1613			return;
1614		}
1615		final Toast prepareFileToast = Toast.makeText(getApplicationContext(),getText(R.string.preparing_image), Toast.LENGTH_LONG);
1616		prepareFileToast.show();
1617		xmppConnectionService.attachImageToConversation(conversation, uri,
1618				new UiCallback<Message>() {
1619
1620					@Override
1621					public void userInputRequried(PendingIntent pi, Message object) {
1622						hidePrepareFileToast(prepareFileToast);
1623					}
1624
1625					@Override
1626					public void success(Message message) {
1627						hidePrepareFileToast(prepareFileToast);
1628						xmppConnectionService.sendMessage(message);
1629					}
1630
1631					@Override
1632					public void error(final int error, Message message) {
1633						hidePrepareFileToast(prepareFileToast);
1634						runOnUiThread(new Runnable() {
1635							@Override
1636							public void run() {
1637								replaceToast(getString(error));
1638							}
1639						});
1640					}
1641				});
1642	}
1643
1644	private void hidePrepareFileToast(final Toast prepareFileToast) {
1645		if (prepareFileToast != null) {
1646			runOnUiThread(new Runnable() {
1647
1648				@Override
1649				public void run() {
1650					prepareFileToast.cancel();
1651				}
1652			});
1653		}
1654	}
1655
1656	public void updateConversationList() {
1657		xmppConnectionService.populateWithOrderedConversations(conversationList);
1658		if (!conversationList.contains(mSelectedConversation)) {
1659			mSelectedConversation = null;
1660		}
1661		if (swipedConversation != null) {
1662			if (swipedConversation.isRead()) {
1663				conversationList.remove(swipedConversation);
1664			} else {
1665				listView.discardUndo();
1666			}
1667		}
1668		listAdapter.notifyDataSetChanged();
1669	}
1670
1671	public void runIntent(PendingIntent pi, int requestCode) {
1672		try {
1673			this.startIntentSenderForResult(pi.getIntentSender(), requestCode,
1674					null, 0, 0, 0);
1675		} catch (final SendIntentException ignored) {
1676		}
1677	}
1678
1679	public void encryptTextMessage(Message message) {
1680		xmppConnectionService.getPgpEngine().encrypt(message,
1681				new UiCallback<Message>() {
1682
1683					@Override
1684					public void userInputRequried(PendingIntent pi,Message message) {
1685						ConversationActivity.this.runIntent(pi,ConversationActivity.REQUEST_SEND_MESSAGE);
1686					}
1687
1688					@Override
1689					public void success(Message message) {
1690						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1691						xmppConnectionService.sendMessage(message);
1692						runOnUiThread(new Runnable() {
1693							@Override
1694							public void run() {
1695								mConversationFragment.messageSent();
1696							}
1697						});
1698					}
1699
1700					@Override
1701					public void error(final int error, Message message) {
1702						runOnUiThread(new Runnable() {
1703							@Override
1704							public void run() {
1705								mConversationFragment.doneSendingPgpMessage();
1706								Toast.makeText(ConversationActivity.this,
1707										R.string.unable_to_connect_to_keychain,
1708										Toast.LENGTH_SHORT
1709								).show();
1710							}
1711						});
1712
1713					}
1714				});
1715	}
1716
1717	public boolean useSendButtonToIndicateStatus() {
1718		return getPreferences().getBoolean("send_button_status", false);
1719	}
1720
1721	public boolean indicateReceived() {
1722		return getPreferences().getBoolean("indicate_received", false);
1723	}
1724
1725	public boolean useGreenBackground() {
1726		return getPreferences().getBoolean("use_green_background",true);
1727	}
1728
1729	protected boolean trustKeysIfNeeded(int requestCode) {
1730		return trustKeysIfNeeded(requestCode, ATTACHMENT_CHOICE_INVALID);
1731	}
1732
1733	protected boolean trustKeysIfNeeded(int requestCode, int attachmentChoice) {
1734		AxolotlService axolotlService = mSelectedConversation.getAccount().getAxolotlService();
1735		final List<Jid> targets = axolotlService.getCryptoTargets(mSelectedConversation);
1736		boolean hasUnaccepted = !mSelectedConversation.getAcceptedCryptoTargets().containsAll(targets);
1737		boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
1738		boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
1739		boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(mSelectedConversation).isEmpty();
1740		boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
1741		if(hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted) {
1742			axolotlService.createSessionsIfNeeded(mSelectedConversation);
1743			Intent intent = new Intent(getApplicationContext(), TrustKeysActivity.class);
1744			String[] contacts = new String[targets.size()];
1745			for(int i = 0; i < contacts.length; ++i) {
1746				contacts[i] = targets.get(i).toString();
1747			}
1748			intent.putExtra("contacts", contacts);
1749			intent.putExtra(EXTRA_ACCOUNT, mSelectedConversation.getAccount().getJid().toBareJid().toString());
1750			intent.putExtra("choice", attachmentChoice);
1751			intent.putExtra("conversation",mSelectedConversation.getUuid());
1752			startActivityForResult(intent, requestCode);
1753			return true;
1754		} else {
1755			return false;
1756		}
1757	}
1758
1759	@Override
1760	protected void refreshUiReal() {
1761		updateConversationList();
1762		if (conversationList.size() > 0) {
1763			if (!this.mConversationFragment.isAdded()) {
1764				Log.d(Config.LOGTAG,"fragment NOT added to activity. detached="+Boolean.toString(mConversationFragment.isDetached()));
1765			}
1766			if (getSelectedConversation() == null) {
1767				reInitLatestConversation();
1768			} else {
1769				ConversationActivity.this.mConversationFragment.updateMessages();
1770				updateActionBarTitle();
1771				invalidateOptionsMenu();
1772			}
1773		} else {
1774			if (!isStopping() && mRedirected.compareAndSet(false, true)) {
1775				redirectToStartConversationActivity();
1776			}
1777			Log.d(Config.LOGTAG,"not updating conversations fragment because conversations list size was 0");
1778		}
1779	}
1780
1781	@Override
1782	public void onAccountUpdate() {
1783		this.refreshUi();
1784	}
1785
1786	@Override
1787	public void onConversationUpdate() {
1788		this.refreshUi();
1789	}
1790
1791	@Override
1792	public void onRosterUpdate() {
1793		this.refreshUi();
1794	}
1795
1796	@Override
1797	public void OnUpdateBlocklist(Status status) {
1798		this.refreshUi();
1799	}
1800
1801	public void unblockConversation(final Blockable conversation) {
1802		xmppConnectionService.sendUnblockRequest(conversation);
1803	}
1804
1805	public boolean enterIsSend() {
1806		return getPreferences().getBoolean("enter_is_send",getResources().getBoolean(R.bool.enter_is_send));
1807	}
1808
1809	@Override
1810	public void onShowErrorToast(final int resId) {
1811		runOnUiThread(new Runnable() {
1812			@Override
1813			public void run() {
1814				Toast.makeText(ConversationActivity.this,resId,Toast.LENGTH_SHORT).show();
1815			}
1816		});
1817	}
1818
1819	public boolean highlightSelectedConversations() {
1820		return !isConversationsOverviewHideable() || this.conversationWasSelectedByKeyboard;
1821	}
1822}