ConversationActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import java.io.FileNotFoundException;
   4import java.lang.ref.WeakReference;
   5import java.util.ArrayList;
   6import java.util.Hashtable;
   7import java.util.List;
   8
   9import eu.siacs.conversations.R;
  10import eu.siacs.conversations.entities.Account;
  11import eu.siacs.conversations.entities.Contact;
  12import eu.siacs.conversations.entities.Conversation;
  13import eu.siacs.conversations.entities.Message;
  14import eu.siacs.conversations.services.ImageProvider;
  15import eu.siacs.conversations.utils.ExceptionHelper;
  16import eu.siacs.conversations.utils.UIHelper;
  17import android.net.Uri;
  18import android.os.AsyncTask;
  19import android.os.Bundle;
  20import android.preference.PreferenceManager;
  21import android.provider.MediaStore;
  22import android.app.AlertDialog;
  23import android.app.FragmentTransaction;
  24import android.app.PendingIntent;
  25import android.content.Context;
  26import android.content.DialogInterface;
  27import android.content.DialogInterface.OnClickListener;
  28import android.content.IntentSender.SendIntentException;
  29import android.content.Intent;
  30import android.content.SharedPreferences;
  31import android.content.res.Resources;
  32import android.graphics.Bitmap;
  33import android.graphics.Color;
  34import android.graphics.Typeface;
  35import android.graphics.drawable.BitmapDrawable;
  36import android.graphics.drawable.Drawable;
  37import android.support.v4.widget.SlidingPaneLayout;
  38import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
  39import android.util.DisplayMetrics;
  40import android.util.Log;
  41import android.view.KeyEvent;
  42import android.view.LayoutInflater;
  43import android.view.Menu;
  44import android.view.MenuItem;
  45import android.view.View;
  46import android.view.ViewGroup;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.OnItemClickListener;
  49import android.widget.ArrayAdapter;
  50import android.widget.CheckBox;
  51import android.widget.ListView;
  52import android.widget.PopupMenu;
  53import android.widget.PopupMenu.OnMenuItemClickListener;
  54import android.widget.TextView;
  55import android.widget.ImageView;
  56import android.widget.Toast;
  57
  58public class ConversationActivity extends XmppActivity {
  59
  60	public static final String VIEW_CONVERSATION = "viewConversation";
  61	public static final String CONVERSATION = "conversationUuid";
  62	public static final String TEXT = "text";
  63	public static final String PRESENCE = "eu.siacs.conversations.presence";
  64
  65	public static final int REQUEST_SEND_MESSAGE = 0x75441;
  66	public static final int REQUEST_DECRYPT_PGP = 0x76783;
  67	private static final int REQUEST_ATTACH_FILE_DIALOG = 0x48502;
  68	private static final int REQUEST_IMAGE_CAPTURE = 0x33788;
  69	private static final int REQUEST_SEND_PGP_IMAGE = 0x53883;
  70	private static final int REQUEST_ATTACH_FILE = 0x73824;
  71	public static final int REQUEST_ENCRYPT_MESSAGE = 0x378018;
  72
  73	protected SlidingPaneLayout spl;
  74
  75	private List<Conversation> conversationList = new ArrayList<Conversation>();
  76	private Conversation selectedConversation = null;
  77	private ListView listView;
  78	
  79	private boolean paneShouldBeOpen = true;
  80	private boolean useSubject = true;
  81	private ArrayAdapter<Conversation> listAdapter;
  82	
  83	public Message pendingMessage = null;
  84
  85	private OnConversationListChangedListener onConvChanged = new OnConversationListChangedListener() {
  86
  87		@Override
  88		public void onConversationListChanged() {
  89			runOnUiThread(new Runnable() {
  90
  91				@Override
  92				public void run() {
  93					updateConversationList();
  94					if (paneShouldBeOpen) {
  95						if (conversationList.size() >= 1) {
  96							swapConversationFragment();
  97						} else {
  98							startActivity(new Intent(getApplicationContext(),
  99									ContactsActivity.class));
 100							finish();
 101						}
 102					}
 103					ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 104							.findFragmentByTag("conversation");
 105					if (selectedFragment != null) {
 106						selectedFragment.updateMessages();
 107					}
 108				}
 109			});
 110		}
 111	};
 112	
 113	protected ConversationActivity activity = this;
 114	private DisplayMetrics metrics;
 115	private Toast prepareImageToast;
 116
 117	public List<Conversation> getConversationList() {
 118		return this.conversationList;
 119	}
 120
 121	public Conversation getSelectedConversation() {
 122		return this.selectedConversation;
 123	}
 124	
 125	public void setSelectedConversation(Conversation conversation) {
 126		this.selectedConversation = conversation;
 127	}
 128
 129	public ListView getConversationListView() {
 130		return this.listView;
 131	}
 132
 133	public SlidingPaneLayout getSlidingPaneLayout() {
 134		return this.spl;
 135	}
 136
 137	public boolean shouldPaneBeOpen() {
 138		return paneShouldBeOpen;
 139	}
 140
 141	@Override
 142	protected void onCreate(Bundle savedInstanceState) {
 143
 144		metrics = getResources().getDisplayMetrics();
 145		
 146		super.onCreate(savedInstanceState);
 147
 148		setContentView(R.layout.fragment_conversations_overview);
 149
 150		listView = (ListView) findViewById(R.id.list);
 151
 152		this.listAdapter = new ArrayAdapter<Conversation>(this,
 153				R.layout.conversation_list_row, conversationList) {
 154			@Override
 155			public View getView(int position, View view, ViewGroup parent) {
 156				if (view == null) {
 157					LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 158					view = (View) inflater.inflate(
 159							R.layout.conversation_list_row, null);
 160				}
 161				Conversation conv;
 162				if (conversationList.size() > position) {
 163					conv = getItem(position);
 164				} else {
 165					return view;
 166				}
 167				if (!spl.isSlideable()) {
 168					if (conv == getSelectedConversation()) {
 169						view.setBackgroundColor(0xffdddddd);
 170					} else {
 171						view.setBackgroundColor(Color.TRANSPARENT);
 172					}
 173				} else {
 174					view.setBackgroundColor(Color.TRANSPARENT);
 175				}
 176				TextView convName = (TextView) view
 177						.findViewById(R.id.conversation_name);
 178				convName.setText(conv.getName(useSubject));
 179				TextView convLastMsg = (TextView) view
 180						.findViewById(R.id.conversation_lastmsg);
 181				ImageView imagePreview = (ImageView) view.findViewById(R.id.conversation_lastimage);
 182				
 183				Message latestMessage = conv.getLatestMessage();
 184				
 185				if (latestMessage.getType() == Message.TYPE_TEXT) {
 186					if ((latestMessage.getEncryption() != Message.ENCRYPTION_PGP)&&(latestMessage.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED)) {
 187						convLastMsg.setText(conv.getLatestMessage().getBody());
 188					} else {
 189						convLastMsg.setText(getText(R.string.encrypted_message_received));
 190					}
 191					convLastMsg.setVisibility(View.VISIBLE);
 192					imagePreview.setVisibility(View.GONE);
 193				} else if (latestMessage.getType() == Message.TYPE_IMAGE) {
 194					if (latestMessage.getStatus() >= Message.STATUS_RECIEVED) {
 195						convLastMsg.setVisibility(View.GONE);
 196						imagePreview.setVisibility(View.VISIBLE);
 197						loadBitmap(latestMessage, imagePreview);
 198					} else {
 199						convLastMsg.setVisibility(View.VISIBLE);
 200						imagePreview.setVisibility(View.GONE);
 201						if (latestMessage.getStatus() == Message.STATUS_RECEIVED_OFFER) {
 202							convLastMsg.setText(getText(R.string.image_offered_for_download));
 203						} else if (latestMessage.getStatus() == Message.STATUS_RECIEVING) {
 204							convLastMsg.setText(getText(R.string.receiving_image));
 205						} else {
 206							convLastMsg.setText("");
 207						}
 208					}
 209				}
 210				
 211				
 212
 213				if (!conv.isRead()) {
 214					convName.setTypeface(null, Typeface.BOLD);
 215					convLastMsg.setTypeface(null, Typeface.BOLD);
 216				} else {
 217					convName.setTypeface(null, Typeface.NORMAL);
 218					convLastMsg.setTypeface(null, Typeface.NORMAL);
 219				}
 220
 221				((TextView) view.findViewById(R.id.conversation_lastupdate))
 222						.setText(UIHelper.readableTimeDifference(conv
 223								.getLatestMessage().getTimeSent()));
 224
 225				ImageView profilePicture = (ImageView) view
 226						.findViewById(R.id.conversation_image);
 227				profilePicture.setImageBitmap(UIHelper.getContactPicture(
 228						conv, 56, activity.getApplicationContext(), false));
 229				
 230				return view;
 231			}
 232
 233		};
 234
 235		listView.setAdapter(this.listAdapter);
 236
 237		listView.setOnItemClickListener(new OnItemClickListener() {
 238
 239			@Override
 240			public void onItemClick(AdapterView<?> arg0, View clickedView,
 241					int position, long arg3) {
 242				paneShouldBeOpen = false;
 243				if (getSelectedConversation() != conversationList.get(position)) {
 244					setSelectedConversation(conversationList.get(position));
 245					swapConversationFragment(); // .onBackendConnected(conversationList.get(position));
 246				} else {
 247					spl.closePane();
 248				}
 249			}
 250		});
 251		spl = (SlidingPaneLayout) findViewById(R.id.slidingpanelayout);
 252		spl.setParallaxDistance(150);
 253		spl.setShadowResource(R.drawable.es_slidingpane_shadow);
 254		spl.setSliderFadeColor(0);
 255		spl.setPanelSlideListener(new PanelSlideListener() {
 256
 257			@Override
 258			public void onPanelOpened(View arg0) {
 259				paneShouldBeOpen = true;
 260				getActionBar().setDisplayHomeAsUpEnabled(false);
 261				getActionBar().setTitle(R.string.app_name);
 262				invalidateOptionsMenu();
 263				hideKeyboard();
 264			}
 265
 266			@Override
 267			public void onPanelClosed(View arg0) {
 268				paneShouldBeOpen = false;
 269				if ((conversationList.size() > 0)
 270						&& (getSelectedConversation() != null)) {
 271					getActionBar().setDisplayHomeAsUpEnabled(true);
 272					getActionBar().setTitle(
 273							getSelectedConversation().getName(useSubject));
 274					invalidateOptionsMenu();
 275					if (!getSelectedConversation().isRead()) {
 276						getSelectedConversation().markRead();
 277						UIHelper.updateNotification(getApplicationContext(),
 278								getConversationList(), null, false);
 279						listView.invalidateViews();
 280					}
 281				}
 282			}
 283
 284			@Override
 285			public void onPanelSlide(View arg0, float arg1) {
 286				// TODO Auto-generated method stub
 287
 288			}
 289		});
 290	}
 291
 292	@Override
 293	public boolean onCreateOptionsMenu(Menu menu) {
 294		getMenuInflater().inflate(R.menu.conversations, menu);
 295		MenuItem menuSecure = (MenuItem) menu.findItem(R.id.action_security);
 296		MenuItem menuArchive = (MenuItem) menu.findItem(R.id.action_archive);
 297		MenuItem menuMucDetails = (MenuItem) menu
 298				.findItem(R.id.action_muc_details);
 299		MenuItem menuContactDetails = (MenuItem) menu
 300				.findItem(R.id.action_contact_details);
 301		MenuItem menuInviteContacts = (MenuItem) menu
 302				.findItem(R.id.action_invite);
 303		MenuItem menuAttach = (MenuItem) menu.findItem(R.id.action_attach_file);
 304		MenuItem menuClearHistory = (MenuItem) menu.findItem(R.id.action_clear_history);
 305
 306		if ((spl.isOpen() && (spl.isSlideable()))) {
 307			menuArchive.setVisible(false);
 308			menuMucDetails.setVisible(false);
 309			menuContactDetails.setVisible(false);
 310			menuSecure.setVisible(false);
 311			menuInviteContacts.setVisible(false);
 312			menuAttach.setVisible(false);
 313			menuClearHistory.setVisible(false);
 314		} else {
 315			((MenuItem) menu.findItem(R.id.action_add)).setVisible(!spl
 316					.isSlideable());
 317			if (this.getSelectedConversation() != null) {
 318				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
 319					menuContactDetails.setVisible(false);
 320					menuSecure.setVisible(false);
 321					menuAttach.setVisible(false);
 322				} else {
 323					menuMucDetails.setVisible(false);
 324					menuInviteContacts.setVisible(false);
 325					if (this.getSelectedConversation().getLatestMessage()
 326							.getEncryption() != Message.ENCRYPTION_NONE) {
 327						menuSecure.setIcon(R.drawable.ic_action_secure);
 328					}
 329				}
 330			}
 331		}
 332		return true;
 333	}
 334	
 335	private void attachFileDialog() {
 336		selectPresence(getSelectedConversation(), new OnPresenceSelected() {
 337			
 338			@Override
 339			public void onPresenceSelected(boolean success, String presence) {
 340				if (success) {
 341					Intent attachFileIntent = new Intent();
 342					attachFileIntent.setType("image/*");
 343					attachFileIntent.setAction(Intent.ACTION_GET_CONTENT);
 344					Intent chooser = Intent.createChooser(attachFileIntent, getString(R.string.attach_file));
 345					startActivityForResult(chooser,	REQUEST_ATTACH_FILE_DIALOG);
 346				}
 347			}
 348
 349			@Override
 350			public void onSendPlainTextInstead() {
 351				
 352			}
 353		},"file");
 354	}
 355	
 356	private void takePicture() {
 357		Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
 358		takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, ImageProvider.getIncomingContentUri());
 359	    if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
 360	        startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
 361	    }
 362
 363	}
 364
 365	private void attachFile() {
 366		final Conversation conversation = getSelectedConversation();
 367		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 368			if (hasPgp()) {
 369				if (conversation.getContact().getPgpKeyId()!=0) {
 370					xmppConnectionService.getPgpEngine().hasKey(conversation.getContact(), new UiCallback() {
 371						
 372						@Override
 373						public void userInputRequried(PendingIntent pi) {
 374							ConversationActivity.this.runIntent(pi, REQUEST_ATTACH_FILE);
 375						}
 376						
 377						@Override
 378						public void success() {
 379							attachFileDialog();
 380						}
 381						
 382						@Override
 383						public void error(int error) {
 384							displayErrorDialog(error);
 385							
 386						}
 387					});
 388				} else {
 389					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 390							.findFragmentByTag("conversation");
 391					if (fragment != null) {
 392						fragment.showNoPGPKeyDialog(new OnClickListener() {
 393							
 394							@Override
 395							public void onClick(DialogInterface dialog, int which) {
 396								conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 397								attachFileDialog();
 398							}
 399						});
 400					}
 401				}
 402			}
 403		} else if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_NONE) {
 404			attachFileDialog();
 405		} else {
 406			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 407			builder.setTitle(getString(R.string.otr_file_transfer));
 408			builder.setMessage(getString(R.string.otr_file_transfer_msg));
 409			builder.setNegativeButton(getString(R.string.cancel), null);
 410			if (conversation.getContact().getPgpKeyId()==0) {
 411				builder.setPositiveButton(getString(R.string.send_unencrypted), new OnClickListener() {
 412					
 413					@Override
 414					public void onClick(DialogInterface dialog, int which) {
 415						conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 416						attachFile();
 417					}
 418				});
 419			} else {
 420				builder.setPositiveButton(getString(R.string.use_pgp_encryption), new OnClickListener() {
 421					
 422					@Override
 423					public void onClick(DialogInterface dialog, int which) {
 424						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 425						attachFile();
 426					}
 427				});
 428			}
 429			builder.create().show();
 430		}
 431	}
 432	
 433	@Override
 434	public boolean onOptionsItemSelected(MenuItem item) {
 435		switch (item.getItemId()) {
 436		case android.R.id.home:
 437			spl.openPane();
 438			break;
 439		case R.id.action_attach_file:
 440			View menuAttachFile = findViewById(R.id.action_attach_file);
 441			PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
 442			attachFilePopup.inflate(R.menu.attachment_choices);
 443			attachFilePopup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 444				
 445				@Override
 446				public boolean onMenuItemClick(MenuItem item) {
 447					switch (item.getItemId()) {
 448					case R.id.attach_choose_picture:
 449						attachFile();
 450						break;
 451					case R.id.attach_take_picture:
 452						takePicture();
 453						break;
 454					}
 455					return false;
 456				}
 457			});
 458			attachFilePopup.show();
 459			break;
 460		case R.id.action_add:
 461			startActivity(new Intent(this, ContactsActivity.class));
 462			break;
 463		case R.id.action_archive:
 464			this.endConversation(getSelectedConversation());
 465			break;
 466		case R.id.action_contact_details:
 467			Contact contact = this.getSelectedConversation().getContact();
 468			if (contact != null) {
 469				Intent intent = new Intent(this, ContactDetailsActivity.class);
 470				intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 471				intent.putExtra("uuid", contact.getUuid());
 472				startActivity(intent);
 473			} else {
 474				showAddToRosterDialog(getSelectedConversation());
 475			}
 476			break;
 477		case R.id.action_muc_details:
 478			Intent intent = new Intent(this, MucDetailsActivity.class);
 479			intent.setAction(MucDetailsActivity.ACTION_VIEW_MUC);
 480			intent.putExtra("uuid", getSelectedConversation().getUuid());
 481			startActivity(intent);
 482			break;
 483		case R.id.action_invite:
 484			Intent inviteIntent = new Intent(getApplicationContext(),
 485					ContactsActivity.class);
 486			inviteIntent.setAction("invite");
 487			inviteIntent.putExtra("uuid", getSelectedConversation().getUuid());
 488			startActivity(inviteIntent);
 489			break;
 490		case R.id.action_security:
 491			final Conversation conversation = getSelectedConversation();
 492			View menuItemView = findViewById(R.id.action_security);
 493			PopupMenu popup = new PopupMenu(this, menuItemView);
 494			final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 495					.findFragmentByTag("conversation");
 496			if (fragment != null) {
 497				popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 498
 499					@Override
 500					public boolean onMenuItemClick(MenuItem item) {
 501						switch (item.getItemId()) {
 502						case R.id.encryption_choice_none:
 503							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 504							item.setChecked(true);
 505							break;
 506						case R.id.encryption_choice_otr:
 507							conversation.setNextEncryption(Message.ENCRYPTION_OTR);
 508							item.setChecked(true);
 509							break;
 510						case R.id.encryption_choice_pgp:
 511							if (hasPgp()) {
 512								if (conversation.getAccount().getKeys().has("pgp_signature")) {
 513									conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 514									item.setChecked(true);
 515								} else {
 516									announcePgp(conversation.getAccount(),conversation);
 517								}
 518							}
 519							break;
 520						default:
 521							conversation.setNextEncryption(Message.ENCRYPTION_NONE);
 522							break;
 523						}
 524						fragment.updateChatMsgHint();
 525						return true;
 526					}
 527				});
 528				popup.inflate(R.menu.encryption_choices);
 529				switch (conversation.getNextEncryption()) {
 530				case Message.ENCRYPTION_NONE:
 531					popup.getMenu().findItem(R.id.encryption_choice_none)
 532							.setChecked(true);
 533					break;
 534				case Message.ENCRYPTION_OTR:
 535					popup.getMenu().findItem(R.id.encryption_choice_otr)
 536							.setChecked(true);
 537					break;
 538				case Message.ENCRYPTION_PGP:
 539					popup.getMenu().findItem(R.id.encryption_choice_pgp)
 540							.setChecked(true);
 541					break;
 542				default:
 543					popup.getMenu().findItem(R.id.encryption_choice_none)
 544							.setChecked(true);
 545					break;
 546				}
 547				popup.show();
 548			}
 549
 550			break;
 551		case R.id.action_clear_history:
 552			clearHistoryDialog(getSelectedConversation());
 553			break;
 554		default:
 555			break;
 556		}
 557		return super.onOptionsItemSelected(item);
 558	}
 559	
 560	private void endConversation(Conversation conversation) {
 561		conversation.setStatus(Conversation.STATUS_ARCHIVED);
 562		paneShouldBeOpen = true;
 563		spl.openPane();
 564		xmppConnectionService.archiveConversation(conversation);
 565		if (conversationList.size() > 0) {
 566			setSelectedConversation(conversationList.get(0));
 567		} else {
 568			setSelectedConversation(null);
 569		}
 570	}
 571
 572	protected void clearHistoryDialog(final Conversation conversation) {
 573		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 574		builder.setTitle(getString(R.string.clear_conversation_history));
 575		View dialogView = getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
 576		final CheckBox endConversationCheckBox = (CheckBox) dialogView.findViewById(R.id.end_conversation_checkbox);
 577		builder.setView(dialogView);
 578		builder.setNegativeButton(getString(R.string.cancel), null);
 579		builder.setPositiveButton(getString(R.string.delete_messages), new OnClickListener() {
 580			
 581			@Override
 582			public void onClick(DialogInterface dialog, int which) {
 583				activity.xmppConnectionService.clearConversationHistory(conversation);
 584				if (endConversationCheckBox.isChecked()) {
 585					endConversation(conversation);
 586				}
 587			}
 588		});
 589		builder.create().show();
 590	}
 591
 592	protected ConversationFragment swapConversationFragment() {
 593		ConversationFragment selectedFragment = new ConversationFragment();
 594
 595		FragmentTransaction transaction = getFragmentManager()
 596				.beginTransaction();
 597		transaction.replace(R.id.selected_conversation, selectedFragment,
 598				"conversation");
 599		transaction.commit();
 600		return selectedFragment;
 601	}
 602
 603	@Override
 604	public boolean onKeyDown(int keyCode, KeyEvent event) {
 605		if (keyCode == KeyEvent.KEYCODE_BACK) {
 606			if (!spl.isOpen()) {
 607				spl.openPane();
 608				return false;
 609			}
 610		}
 611		return super.onKeyDown(keyCode, event);
 612	}
 613
 614	@Override
 615	public void onStart() {
 616		super.onStart();
 617		SharedPreferences preferences = PreferenceManager
 618				.getDefaultSharedPreferences(this);
 619		this.useSubject = preferences.getBoolean("use_subject_in_muc", true);
 620		if (this.xmppConnectionServiceBound) {
 621			this.onBackendConnected();
 622		}
 623		if (conversationList.size() >= 1) {
 624			onConvChanged.onConversationListChanged();
 625		}
 626	}
 627
 628	@Override
 629	protected void onStop() {
 630		if (xmppConnectionServiceBound) {
 631			xmppConnectionService.removeOnConversationListChangedListener();
 632		}
 633		super.onStop();
 634	}
 635
 636	@Override
 637	void onBackendConnected() {
 638		this.registerListener();
 639		if (conversationList.size() == 0) {
 640			updateConversationList();
 641		}
 642
 643		if ((getIntent().getAction() != null)
 644				&& (getIntent().getAction().equals(Intent.ACTION_VIEW) && (!handledViewIntent))) {
 645			if (getIntent().getType().equals(
 646					ConversationActivity.VIEW_CONVERSATION)) {
 647				handledViewIntent = true;
 648
 649				String convToView = (String) getIntent().getExtras().get(
 650						CONVERSATION);
 651
 652				for (int i = 0; i < conversationList.size(); ++i) {
 653					if (conversationList.get(i).getUuid().equals(convToView)) {
 654						setSelectedConversation(conversationList.get(i));
 655					}
 656				}
 657				paneShouldBeOpen = false;
 658				String text = getIntent().getExtras().getString(TEXT, null);
 659				swapConversationFragment().setText(text);
 660			}
 661		} else {
 662			if (xmppConnectionService.getAccounts().size() == 0) {
 663				startActivity(new Intent(this, ManageAccountActivity.class));
 664				finish();
 665			} else if (conversationList.size() <= 0) {
 666				// add no history
 667				startActivity(new Intent(this, ContactsActivity.class));
 668				finish();
 669			} else {
 670				spl.openPane();
 671				// find currently loaded fragment
 672				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 673						.findFragmentByTag("conversation");
 674				if (selectedFragment != null) {
 675					selectedFragment.onBackendConnected();
 676				} else {
 677					setSelectedConversation(conversationList.get(0));
 678					swapConversationFragment();
 679				}
 680				ExceptionHelper.checkForCrash(this, this.xmppConnectionService);
 681			}
 682		}
 683	}
 684
 685	public void registerListener() {
 686		if (xmppConnectionServiceBound) {
 687			xmppConnectionService
 688					.setOnConversationListChangedListener(this.onConvChanged);
 689		}
 690	}
 691
 692	@Override
 693	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
 694		super.onActivityResult(requestCode, resultCode, data);
 695		if (resultCode == RESULT_OK) {
 696			if (requestCode == REQUEST_DECRYPT_PGP) {
 697				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 698						.findFragmentByTag("conversation");
 699				if (selectedFragment != null) {
 700					selectedFragment.hidePgpPassphraseBox();
 701				}
 702			} else if (requestCode == REQUEST_ATTACH_FILE_DIALOG) {
 703				prepareImageToast = Toast.makeText(getApplicationContext(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 704				final Conversation conversation = getSelectedConversation();
 705				if (conversation.getNextEncryption() == Message.ENCRYPTION_NONE) {
 706					prepareImageToast.show();
 707					this.pendingMessage = xmppConnectionService.attachImageToConversation(conversation, data.getData(),new UiCallback() {
 708						
 709						@Override
 710						public void userInputRequried(PendingIntent pi) {
 711							
 712						}
 713						
 714						@Override
 715						public void success() {
 716							sendPendingImageMessage();
 717						}
 718						
 719						@Override
 720						public void error(int error) {
 721							pendingMessage = null;
 722							displayErrorDialog(error);
 723						}
 724					});
 725				} else if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 726					prepareImageToast.show();
 727					attachPgpFile(conversation,data.getData());
 728				} else {
 729					Log.d(LOGTAG,"unknown next message encryption: "+conversation.getNextEncryption());
 730				}
 731			} else if (requestCode == REQUEST_SEND_PGP_IMAGE) {
 732				
 733			} else if (requestCode == REQUEST_ATTACH_FILE) {
 734				attachFile();
 735			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
 736				announcePgp(getSelectedConversation().getAccount(),getSelectedConversation());
 737			} else if (requestCode == REQUEST_ENCRYPT_MESSAGE) {
 738				encryptTextMessage();
 739			} else if (requestCode == REQUEST_IMAGE_CAPTURE) {
 740				this.pendingMessage = xmppConnectionService.attachImageToConversation(getSelectedConversation(), null, new UiCallback() {
 741					
 742					@Override
 743					public void userInputRequried(PendingIntent pi) {
 744						// TODO Auto-generated method stub
 745						
 746					}
 747					
 748					@Override
 749					public void success() {
 750						sendPendingImageMessage();
 751					}
 752					
 753					@Override
 754					public void error(int errorCode) {
 755						// TODO Auto-generated method stub
 756						
 757					}
 758				});
 759			} else {
 760				Log.d(LOGTAG,"unknown result code:"+requestCode);
 761			}
 762		}
 763	}
 764	
 765	private void attachPgpFile(Conversation conversation, Uri uri) {
 766			pendingMessage = xmppConnectionService.attachImageToConversation(conversation, uri, new UiCallback() {
 767				
 768				@Override
 769				public void userInputRequried(PendingIntent pi) {
 770					ConversationActivity.this.runIntent(pi, ConversationActivity.REQUEST_SEND_PGP_IMAGE);
 771				}
 772				
 773				@Override
 774				public void success() {
 775					sendPendingImageMessage();
 776				}
 777				
 778				@Override
 779				public void error(int error) {
 780					pendingMessage = null;
 781					displayErrorDialog(error);
 782				}
 783			});
 784	}
 785
 786	private void sendPendingImageMessage() {
 787		pendingMessage.getConversation().getMessages().add(pendingMessage);
 788		xmppConnectionService.databaseBackend.createMessage(pendingMessage);
 789		xmppConnectionService.sendMessage(pendingMessage, null);
 790		xmppConnectionService.updateUi(pendingMessage.getConversation(), false);
 791		pendingMessage = null;
 792	}
 793	
 794	public void updateConversationList() {
 795		conversationList.clear();
 796		conversationList.addAll(xmppConnectionService.getConversations());
 797		listView.invalidateViews();
 798	}
 799	
 800	public void selectPresence(final Conversation conversation, final OnPresenceSelected listener, String reason) {
 801		Account account = conversation.getAccount();
 802		if (account.getStatus() != Account.STATUS_ONLINE) {
 803			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 804			builder.setTitle(getString(R.string.not_connected));
 805			builder.setIconAttribute(android.R.attr.alertDialogIcon);
 806			if ("otr".equals(reason)) {
 807				builder.setMessage(getString(R.string.you_are_offline,getString(R.string.otr_messages)));
 808			} else if ("file".equals(reason)) {
 809				builder.setMessage(getString(R.string.you_are_offline,getString(R.string.files)));
 810			} else {
 811				builder.setMessage(getString(R.string.you_are_offline_blank));
 812			}
 813			builder.setNegativeButton(getString(R.string.cancel), null);
 814			builder.setPositiveButton(getString(R.string.manage_account), new OnClickListener() {
 815				
 816				@Override
 817				public void onClick(DialogInterface dialog, int which) {
 818					startActivity(new Intent(activity, ManageAccountActivity.class));
 819				}
 820			});
 821			builder.create().show();
 822			listener.onPresenceSelected(false, null);
 823		} else {
 824			Contact contact = conversation.getContact();
 825			if (contact==null) {
 826				showAddToRosterDialog(conversation);
 827				listener.onPresenceSelected(false,null);
 828			} else {
 829				Hashtable<String, Integer> presences = contact.getPresences();
 830				if (presences.size() == 0) {
 831					AlertDialog.Builder builder = new AlertDialog.Builder(this);
 832					builder.setTitle(getString(R.string.contact_offline));
 833					if ("otr".equals(reason)) {
 834						builder.setMessage(getString(R.string.contact_offline_otr));
 835						builder.setPositiveButton(getString(R.string.send_unencrypted), new OnClickListener() {
 836							
 837							@Override
 838							public void onClick(DialogInterface dialog, int which) {
 839								listener.onSendPlainTextInstead();
 840							}
 841						});
 842					} else if ("file".equals(reason)) {
 843						builder.setMessage(getString(R.string.contact_offline_file));
 844					}
 845					builder.setIconAttribute(android.R.attr.alertDialogIcon);
 846					builder.setNegativeButton(getString(R.string.cancel), null);
 847					builder.create().show();
 848					listener.onPresenceSelected(false, null);
 849				} else if (presences.size() == 1) {
 850					String presence = (String) presences.keySet().toArray()[0];
 851					conversation.setNextPresence(presence);
 852					listener.onPresenceSelected(true, presence);
 853				} else {
 854					AlertDialog.Builder builder = new AlertDialog.Builder(this);
 855					builder.setTitle(getString(R.string.choose_presence));
 856					final String[] presencesArray = new String[presences.size()];
 857					presences.keySet().toArray(presencesArray);
 858					builder.setItems(presencesArray,
 859							new DialogInterface.OnClickListener() {
 860	
 861								@Override
 862								public void onClick(DialogInterface dialog,
 863										int which) {
 864									String presence = presencesArray[which];
 865									conversation.setNextPresence(presence);
 866									listener.onPresenceSelected(true,presence);
 867								}
 868							});
 869					builder.create().show();
 870				}
 871			}
 872		}
 873	}
 874	
 875	private void showAddToRosterDialog(final Conversation conversation) {
 876		String jid = conversation.getContactJid();
 877		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 878		builder.setTitle(jid);
 879		builder.setMessage(getString(R.string.not_in_roster));
 880		builder.setNegativeButton(getString(R.string.cancel), null);
 881		builder.setPositiveButton(getString(R.string.add_contact), new DialogInterface.OnClickListener() {
 882
 883			@Override
 884			public void onClick(DialogInterface dialog, int which) {
 885				String jid = conversation.getContactJid();
 886				Account account = getSelectedConversation().getAccount();
 887				String name = jid.split("@")[0];
 888				Contact contact = new Contact(account, name, jid, null);
 889				xmppConnectionService.createContact(contact);
 890			}
 891		});
 892		builder.create().show();
 893	}
 894	
 895	public void runIntent(PendingIntent pi, int requestCode) {
 896		try {
 897			this.startIntentSenderForResult(pi.getIntentSender(),requestCode, null, 0,
 898					0, 0);
 899		} catch (SendIntentException e1) {
 900			Log.d("xmppService","failed to start intent to send message");
 901		}
 902	}
 903	
 904	
 905	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
 906	    private final WeakReference<ImageView> imageViewReference;
 907	    private Message message = null;
 908
 909	    public BitmapWorkerTask(ImageView imageView) {
 910	        imageViewReference = new WeakReference<ImageView>(imageView);
 911	    }
 912
 913	    @Override
 914	    protected Bitmap doInBackground(Message... params) {
 915	        message = params[0];
 916	        try {
 917				return xmppConnectionService.getFileBackend().getThumbnail(message, (int) (metrics.density * 288),false);
 918			} catch (FileNotFoundException e) {
 919				Log.d("xmppService","file not found!");
 920				return null;
 921			}
 922	    }
 923
 924	    @Override
 925	    protected void onPostExecute(Bitmap bitmap) {
 926	        if (imageViewReference != null && bitmap != null) {
 927	            final ImageView imageView = imageViewReference.get();
 928	            if (imageView != null) {
 929	                imageView.setImageBitmap(bitmap);
 930	                imageView.setBackgroundColor(0x00000000);
 931	            }
 932	        }
 933	    }
 934	}
 935	
 936	public void loadBitmap(Message message, ImageView imageView) {
 937		Bitmap bm;
 938		try {
 939			bm = xmppConnectionService.getFileBackend().getThumbnail(message, (int) (metrics.density * 288), true);
 940		} catch (FileNotFoundException e) {
 941			bm = null;
 942		}
 943		if (bm!=null) {
 944			imageView.setImageBitmap(bm);
 945			imageView.setBackgroundColor(0x00000000);
 946		} else {
 947		    if (cancelPotentialWork(message, imageView)) {
 948		    	imageView.setBackgroundColor(0xff333333);
 949		        final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
 950		        final AsyncDrawable asyncDrawable =
 951		                new AsyncDrawable(getResources(), null, task);
 952		        imageView.setImageDrawable(asyncDrawable);
 953		        task.execute(message);
 954		    }
 955		}
 956	}
 957	
 958	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
 959	    final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
 960
 961	    if (bitmapWorkerTask != null) {
 962	        final Message oldMessage = bitmapWorkerTask.message;
 963	        if (oldMessage == null || message != oldMessage) {
 964	            bitmapWorkerTask.cancel(true);
 965	        } else {
 966	            return false;
 967	        }
 968	    }
 969	    return true;
 970	}
 971	
 972	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
 973		   if (imageView != null) {
 974		       final Drawable drawable = imageView.getDrawable();
 975		       if (drawable instanceof AsyncDrawable) {
 976		           final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
 977		           return asyncDrawable.getBitmapWorkerTask();
 978		       }
 979		    }
 980		    return null;
 981	}
 982	
 983	static class AsyncDrawable extends BitmapDrawable {
 984	    private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
 985
 986	    public AsyncDrawable(Resources res, Bitmap bitmap,
 987	            BitmapWorkerTask bitmapWorkerTask) {
 988	        super(res, bitmap);
 989	        bitmapWorkerTaskReference =
 990	            new WeakReference<BitmapWorkerTask>(bitmapWorkerTask);
 991	    }
 992
 993	    public BitmapWorkerTask getBitmapWorkerTask() {
 994	        return bitmapWorkerTaskReference.get();
 995	    }
 996	}
 997
 998	public void encryptTextMessage() {
 999		xmppConnectionService.getPgpEngine().encrypt(this.pendingMessage, new UiCallback() {
1000
1001					@Override
1002					public void userInputRequried(
1003							PendingIntent pi) {
1004						activity.runIntent(
1005								pi,
1006								ConversationActivity.REQUEST_SEND_MESSAGE);
1007					}
1008
1009					@Override
1010					public void success() {
1011						xmppConnectionService.sendMessage(pendingMessage, null);
1012						pendingMessage = null;
1013						ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
1014								.findFragmentByTag("conversation");
1015						if (selectedFragment != null) {
1016							selectedFragment.clearInputField();
1017						}
1018					}
1019
1020					@Override
1021					public void error(int error) {
1022
1023					}
1024				});
1025	}
1026}