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