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_RECORD_AUDIO = 0x46189;
  70	private static final int REQUEST_SEND_PGP_IMAGE = 0x53883;
  71	public static final int REQUEST_ENCRYPT_MESSAGE = 0x378018;
  72
  73	private static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x92734;
  74	private static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x84123;
  75	private static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x75291;
  76
  77	protected SlidingPaneLayout spl;
  78
  79	private List<Conversation> conversationList = new ArrayList<Conversation>();
  80	private Conversation selectedConversation = null;
  81	private ListView listView;
  82
  83	private boolean paneShouldBeOpen = true;
  84	private boolean useSubject = true;
  85	private boolean showLastseen = false;
  86	private ArrayAdapter<Conversation> listAdapter;
  87
  88	private OnConversationListChangedListener onConvChanged = new OnConversationListChangedListener() {
  89
  90		@Override
  91		public void onConversationListChanged() {
  92			runOnUiThread(new Runnable() {
  93
  94				@Override
  95				public void run() {
  96					updateConversationList();
  97					if (paneShouldBeOpen) {
  98						if (conversationList.size() >= 1) {
  99							swapConversationFragment();
 100						} else {
 101							startActivity(new Intent(getApplicationContext(),
 102									ContactsActivity.class));
 103							finish();
 104						}
 105					}
 106					ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 107							.findFragmentByTag("conversation");
 108					if (selectedFragment != null) {
 109						selectedFragment.updateMessages();
 110					}
 111				}
 112			});
 113		}
 114	};
 115
 116	protected ConversationActivity activity = this;
 117	private DisplayMetrics metrics;
 118	private Toast prepareImageToast;
 119
 120	public List<Conversation> getConversationList() {
 121		return this.conversationList;
 122	}
 123
 124	public Conversation getSelectedConversation() {
 125		return this.selectedConversation;
 126	}
 127
 128	public void setSelectedConversation(Conversation conversation) {
 129		this.selectedConversation = conversation;
 130	}
 131
 132	public ListView getConversationListView() {
 133		return this.listView;
 134	}
 135
 136	public SlidingPaneLayout getSlidingPaneLayout() {
 137		return this.spl;
 138	}
 139
 140	public boolean shouldPaneBeOpen() {
 141		return paneShouldBeOpen;
 142	}
 143
 144	@Override
 145	protected void onCreate(Bundle savedInstanceState) {
 146
 147		metrics = getResources().getDisplayMetrics();
 148
 149		super.onCreate(savedInstanceState);
 150
 151		setContentView(R.layout.fragment_conversations_overview);
 152
 153		listView = (ListView) findViewById(R.id.list);
 154
 155		this.listAdapter = new ArrayAdapter<Conversation>(this,
 156				R.layout.conversation_list_row, conversationList) {
 157			@Override
 158			public View getView(int position, View view, ViewGroup parent) {
 159				if (view == null) {
 160					LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 161					view = (View) inflater.inflate(
 162							R.layout.conversation_list_row, null);
 163				}
 164				Conversation conv;
 165				if (conversationList.size() > position) {
 166					conv = getItem(position);
 167				} else {
 168					return view;
 169				}
 170				if (!spl.isSlideable()) {
 171					if (conv == getSelectedConversation()) {
 172						view.setBackgroundColor(0xffdddddd);
 173					} else {
 174						view.setBackgroundColor(Color.TRANSPARENT);
 175					}
 176				} else {
 177					view.setBackgroundColor(Color.TRANSPARENT);
 178				}
 179				TextView convName = (TextView) view
 180						.findViewById(R.id.conversation_name);
 181				convName.setText(conv.getName(useSubject));
 182				TextView convLastMsg = (TextView) view
 183						.findViewById(R.id.conversation_lastmsg);
 184				ImageView imagePreview = (ImageView) view
 185						.findViewById(R.id.conversation_lastimage);
 186
 187				Message latestMessage = conv.getLatestMessage();
 188
 189				if (latestMessage.getType() == Message.TYPE_TEXT) {
 190					if ((latestMessage.getEncryption() != Message.ENCRYPTION_PGP)
 191							&& (latestMessage.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED)) {
 192						convLastMsg.setText(conv.getLatestMessage().getBody());
 193					} else {
 194						convLastMsg
 195								.setText(getText(R.string.encrypted_message_received));
 196					}
 197					convLastMsg.setVisibility(View.VISIBLE);
 198					imagePreview.setVisibility(View.GONE);
 199				} else if (latestMessage.getType() == Message.TYPE_IMAGE) {
 200					if (latestMessage.getStatus() >= Message.STATUS_RECIEVED) {
 201						convLastMsg.setVisibility(View.GONE);
 202						imagePreview.setVisibility(View.VISIBLE);
 203						loadBitmap(latestMessage, imagePreview);
 204					} else {
 205						convLastMsg.setVisibility(View.VISIBLE);
 206						imagePreview.setVisibility(View.GONE);
 207						if (latestMessage.getStatus() == Message.STATUS_RECEIVED_OFFER) {
 208							convLastMsg
 209									.setText(getText(R.string.image_offered_for_download));
 210						} else if (latestMessage.getStatus() == Message.STATUS_RECIEVING) {
 211							convLastMsg
 212									.setText(getText(R.string.receiving_image));
 213						} else {
 214							convLastMsg.setText("");
 215						}
 216					}
 217				}
 218
 219				if (!conv.isRead()) {
 220					convName.setTypeface(null, Typeface.BOLD);
 221					convLastMsg.setTypeface(null, Typeface.BOLD);
 222				} else {
 223					convName.setTypeface(null, Typeface.NORMAL);
 224					convLastMsg.setTypeface(null, Typeface.NORMAL);
 225				}
 226
 227				((TextView) view.findViewById(R.id.conversation_lastupdate))
 228						.setText(UIHelper.readableTimeDifference(getContext(),
 229								conv.getLatestMessage().getTimeSent()));
 230
 231				ImageView profilePicture = (ImageView) view
 232						.findViewById(R.id.conversation_image);
 233				profilePicture.setImageBitmap(UIHelper.getContactPicture(conv,
 234						56, activity.getApplicationContext(), false));
 235
 236				return view;
 237			}
 238
 239		};
 240
 241		listView.setAdapter(this.listAdapter);
 242
 243		listView.setOnItemClickListener(new OnItemClickListener() {
 244
 245			@Override
 246			public void onItemClick(AdapterView<?> arg0, View clickedView,
 247					int position, long arg3) {
 248				paneShouldBeOpen = false;
 249				if (getSelectedConversation() != conversationList.get(position)) {
 250					setSelectedConversation(conversationList.get(position));
 251					swapConversationFragment(); // .onBackendConnected(conversationList.get(position));
 252				} else {
 253					spl.closePane();
 254				}
 255			}
 256		});
 257		spl = (SlidingPaneLayout) findViewById(R.id.slidingpanelayout);
 258		spl.setParallaxDistance(150);
 259		spl.setShadowResource(R.drawable.es_slidingpane_shadow);
 260		spl.setSliderFadeColor(0);
 261		spl.setPanelSlideListener(new PanelSlideListener() {
 262
 263			@Override
 264			public void onPanelOpened(View arg0) {
 265				paneShouldBeOpen = true;
 266				getActionBar().setDisplayHomeAsUpEnabled(false);
 267				getActionBar().setHomeButtonEnabled(false);
 268				getActionBar().setTitle(R.string.app_name);
 269				invalidateOptionsMenu();
 270				hideKeyboard();
 271				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 272						.findFragmentByTag("conversation");
 273				if (selectedFragment != null) {
 274					selectedFragment.lastSeen.setVisibility(View.GONE);
 275				}
 276			}
 277
 278			@Override
 279			public void onPanelClosed(View arg0) {
 280				paneShouldBeOpen = false;
 281				if ((conversationList.size() > 0)
 282						&& (getSelectedConversation() != null)) {
 283					getActionBar().setDisplayHomeAsUpEnabled(true);
 284					getActionBar().setHomeButtonEnabled(true);
 285					getActionBar().setTitle(
 286							getSelectedConversation().getName(useSubject));
 287					invalidateOptionsMenu();
 288					if (!getSelectedConversation().isRead()) {
 289						xmppConnectionService
 290								.markRead(getSelectedConversation());
 291						UIHelper.updateNotification(getApplicationContext(),
 292								getConversationList(), null, false);
 293						listView.invalidateViews();
 294					}
 295					ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 296							.findFragmentByTag("conversation");
 297					if ((selectedFragment != null) && (showLastseen())) {
 298						selectedFragment.lastSeen.setVisibility(View.VISIBLE);
 299					}
 300				}
 301			}
 302
 303			@Override
 304			public void onPanelSlide(View arg0, float arg1) {
 305				// TODO Auto-generated method stub
 306
 307			}
 308		});
 309	}
 310
 311	@Override
 312	public boolean onCreateOptionsMenu(Menu menu) {
 313		getMenuInflater().inflate(R.menu.conversations, menu);
 314		MenuItem menuSecure = (MenuItem) menu.findItem(R.id.action_security);
 315		MenuItem menuArchive = (MenuItem) menu.findItem(R.id.action_archive);
 316		MenuItem menuMucDetails = (MenuItem) menu
 317				.findItem(R.id.action_muc_details);
 318		MenuItem menuContactDetails = (MenuItem) menu
 319				.findItem(R.id.action_contact_details);
 320		MenuItem menuInviteContacts = (MenuItem) menu
 321				.findItem(R.id.action_invite);
 322		MenuItem menuAttach = (MenuItem) menu.findItem(R.id.action_attach_file);
 323		MenuItem menuClearHistory = (MenuItem) menu
 324				.findItem(R.id.action_clear_history);
 325
 326		if ((spl.isOpen() && (spl.isSlideable()))) {
 327			menuArchive.setVisible(false);
 328			menuMucDetails.setVisible(false);
 329			menuContactDetails.setVisible(false);
 330			menuSecure.setVisible(false);
 331			menuInviteContacts.setVisible(false);
 332			menuAttach.setVisible(false);
 333			menuClearHistory.setVisible(false);
 334		} else {
 335			((MenuItem) menu.findItem(R.id.action_add)).setVisible(!spl
 336					.isSlideable());
 337			if (this.getSelectedConversation() != null) {
 338				if (this.getSelectedConversation().getLatestMessage()
 339						.getEncryption() != Message.ENCRYPTION_NONE) {
 340					menuSecure.setIcon(R.drawable.ic_action_secure);
 341				}
 342				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
 343					menuContactDetails.setVisible(false);
 344					menuAttach.setVisible(false);
 345				} else {
 346					menuMucDetails.setVisible(false);
 347					menuInviteContacts.setVisible(false);
 348				}
 349			}
 350		}
 351		return true;
 352	}
 353
 354	private void selectPresenceToAttachFile(final int attachmentChoice) {
 355		selectPresence(getSelectedConversation(), new OnPresenceSelected() {
 356
 357			@Override
 358			public void onPresenceSelected(boolean success, String presence) {
 359				if (success) {
 360					if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO) {
 361						Intent takePictureIntent = new Intent(
 362								MediaStore.ACTION_IMAGE_CAPTURE);
 363						takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
 364								ImageProvider.getIncomingContentUri());
 365						if (takePictureIntent
 366								.resolveActivity(getPackageManager()) != null) {
 367							startActivityForResult(takePictureIntent,
 368									REQUEST_IMAGE_CAPTURE);
 369						}
 370					} else if (attachmentChoice == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
 371						Intent attachFileIntent = new Intent();
 372						attachFileIntent.setType("image/*");
 373						attachFileIntent.setAction(Intent.ACTION_GET_CONTENT);
 374						Intent chooser = Intent.createChooser(attachFileIntent,
 375								getString(R.string.attach_file));
 376						startActivityForResult(chooser,
 377								REQUEST_ATTACH_FILE_DIALOG);
 378					} else if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
 379						Intent intent = new Intent(
 380								MediaStore.Audio.Media.RECORD_SOUND_ACTION);
 381						startActivityForResult(intent, REQUEST_RECORD_AUDIO);
 382					}
 383				}
 384			}
 385
 386			@Override
 387			public void onSendPlainTextInstead() {
 388				// TODO Auto-generated method stub
 389
 390			}
 391		}, "file");
 392	}
 393
 394	private void attachFile(final int attachmentChoice) {
 395		final Conversation conversation = getSelectedConversation();
 396		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 397			if (hasPgp()) {
 398				if (conversation.getContact().getPgpKeyId() != 0) {
 399					xmppConnectionService.getPgpEngine().hasKey(
 400							conversation.getContact(),
 401							new UiCallback<Contact>() {
 402
 403								@Override
 404								public void userInputRequried(PendingIntent pi,
 405										Contact contact) {
 406									ConversationActivity.this.runIntent(pi,
 407											attachmentChoice);
 408								}
 409
 410								@Override
 411								public void success(Contact contact) {
 412									selectPresenceToAttachFile(attachmentChoice);
 413								}
 414
 415								@Override
 416								public void error(int error, Contact contact) {
 417									displayErrorDialog(error);
 418								}
 419							});
 420				} else {
 421					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 422							.findFragmentByTag("conversation");
 423					if (fragment != null) {
 424						fragment.showNoPGPKeyDialog(false,
 425								new OnClickListener() {
 426
 427									@Override
 428									public void onClick(DialogInterface dialog,
 429											int which) {
 430										conversation
 431												.setNextEncryption(Message.ENCRYPTION_NONE);
 432										selectPresenceToAttachFile(attachmentChoice);
 433									}
 434								});
 435					}
 436				}
 437			}
 438		} else if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_NONE) {
 439			selectPresenceToAttachFile(attachmentChoice);
 440		} else {
 441			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 442			builder.setTitle(getString(R.string.otr_file_transfer));
 443			builder.setMessage(getString(R.string.otr_file_transfer_msg));
 444			builder.setNegativeButton(getString(R.string.cancel), null);
 445			if (conversation.getContact().getPgpKeyId() == 0) {
 446				builder.setPositiveButton(getString(R.string.send_unencrypted),
 447						new OnClickListener() {
 448
 449							@Override
 450							public void onClick(DialogInterface dialog,
 451									int which) {
 452								conversation
 453										.setNextEncryption(Message.ENCRYPTION_NONE);
 454								attachFile(attachmentChoice);
 455							}
 456						});
 457			} else {
 458				builder.setPositiveButton(
 459						getString(R.string.use_pgp_encryption),
 460						new OnClickListener() {
 461
 462							@Override
 463							public void onClick(DialogInterface dialog,
 464									int which) {
 465								conversation
 466										.setNextEncryption(Message.ENCRYPTION_PGP);
 467								attachFile(attachmentChoice);
 468							}
 469						});
 470			}
 471			builder.create().show();
 472		}
 473	}
 474
 475	@Override
 476	public boolean onOptionsItemSelected(MenuItem item) {
 477		switch (item.getItemId()) {
 478		case android.R.id.home:
 479			spl.openPane();
 480			break;
 481		case R.id.action_attach_file:
 482			View menuAttachFile = findViewById(R.id.action_attach_file);
 483			PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
 484			attachFilePopup.inflate(R.menu.attachment_choices);
 485			attachFilePopup
 486					.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 487
 488						@Override
 489						public boolean onMenuItemClick(MenuItem item) {
 490							switch (item.getItemId()) {
 491							case R.id.attach_choose_picture:
 492								attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 493								break;
 494							case R.id.attach_take_picture:
 495								attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
 496								break;
 497							case R.id.attach_record_voice:
 498								attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
 499								break;
 500							}
 501							return false;
 502						}
 503					});
 504			attachFilePopup.show();
 505			break;
 506		case R.id.action_add:
 507			startActivity(new Intent(this, ContactsActivity.class));
 508			break;
 509		case R.id.action_archive:
 510			this.endConversation(getSelectedConversation());
 511			break;
 512		case R.id.action_contact_details:
 513			Contact contact = this.getSelectedConversation().getContact();
 514			if (contact.showInRoster()) {
 515				Intent intent = new Intent(this, ContactDetailsActivity.class);
 516				intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 517				intent.putExtra("account", this.getSelectedConversation()
 518						.getAccount().getJid());
 519				intent.putExtra("contact", contact.getJid());
 520				startActivity(intent);
 521			} else {
 522				showAddToRosterDialog(getSelectedConversation());
 523			}
 524			break;
 525		case R.id.action_muc_details:
 526			Intent intent = new Intent(this, MucDetailsActivity.class);
 527			intent.setAction(MucDetailsActivity.ACTION_VIEW_MUC);
 528			intent.putExtra("uuid", getSelectedConversation().getUuid());
 529			startActivity(intent);
 530			break;
 531		case R.id.action_invite:
 532			Intent inviteIntent = new Intent(getApplicationContext(),
 533					ContactsActivity.class);
 534			inviteIntent.setAction("invite");
 535			inviteIntent.putExtra("uuid", getSelectedConversation().getUuid());
 536			startActivity(inviteIntent);
 537			break;
 538		case R.id.action_security:
 539			final Conversation conversation = getSelectedConversation();
 540			View menuItemView = findViewById(R.id.action_security);
 541			PopupMenu popup = new PopupMenu(this, menuItemView);
 542			final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
 543					.findFragmentByTag("conversation");
 544			if (fragment != null) {
 545				popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 546
 547					@Override
 548					public boolean onMenuItemClick(MenuItem item) {
 549						switch (item.getItemId()) {
 550						case R.id.encryption_choice_none:
 551							conversation
 552									.setNextEncryption(Message.ENCRYPTION_NONE);
 553							item.setChecked(true);
 554							break;
 555						case R.id.encryption_choice_otr:
 556							conversation
 557									.setNextEncryption(Message.ENCRYPTION_OTR);
 558							item.setChecked(true);
 559							break;
 560						case R.id.encryption_choice_pgp:
 561							if (hasPgp()) {
 562								if (conversation.getAccount().getKeys()
 563										.has("pgp_signature")) {
 564									conversation
 565											.setNextEncryption(Message.ENCRYPTION_PGP);
 566									item.setChecked(true);
 567								} else {
 568									announcePgp(conversation.getAccount(),
 569											conversation);
 570								}
 571							}
 572							break;
 573						default:
 574							conversation
 575									.setNextEncryption(Message.ENCRYPTION_NONE);
 576							break;
 577						}
 578						fragment.updateChatMsgHint();
 579						return true;
 580					}
 581				});
 582				popup.inflate(R.menu.encryption_choices);
 583				MenuItem otr = popup.getMenu().findItem(
 584						R.id.encryption_choice_otr);
 585				if (conversation.getMode() == Conversation.MODE_MULTI) {
 586					otr.setEnabled(false);
 587				}
 588				switch (conversation.getNextEncryption()) {
 589				case Message.ENCRYPTION_NONE:
 590					popup.getMenu().findItem(R.id.encryption_choice_none)
 591							.setChecked(true);
 592					break;
 593				case Message.ENCRYPTION_OTR:
 594					otr.setChecked(true);
 595					break;
 596				case Message.ENCRYPTION_PGP:
 597					popup.getMenu().findItem(R.id.encryption_choice_pgp)
 598							.setChecked(true);
 599					break;
 600				default:
 601					popup.getMenu().findItem(R.id.encryption_choice_none)
 602							.setChecked(true);
 603					break;
 604				}
 605				popup.show();
 606			}
 607
 608			break;
 609		case R.id.action_clear_history:
 610			clearHistoryDialog(getSelectedConversation());
 611			break;
 612		default:
 613			break;
 614		}
 615		return super.onOptionsItemSelected(item);
 616	}
 617
 618	private void endConversation(Conversation conversation) {
 619		conversation.setStatus(Conversation.STATUS_ARCHIVED);
 620		paneShouldBeOpen = true;
 621		spl.openPane();
 622		xmppConnectionService.archiveConversation(conversation);
 623		if (conversationList.size() > 0) {
 624			setSelectedConversation(conversationList.get(0));
 625		} else {
 626			setSelectedConversation(null);
 627		}
 628	}
 629
 630	protected void clearHistoryDialog(final Conversation conversation) {
 631		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 632		builder.setTitle(getString(R.string.clear_conversation_history));
 633		View dialogView = getLayoutInflater().inflate(
 634				R.layout.dialog_clear_history, null);
 635		final CheckBox endConversationCheckBox = (CheckBox) dialogView
 636				.findViewById(R.id.end_conversation_checkbox);
 637		builder.setView(dialogView);
 638		builder.setNegativeButton(getString(R.string.cancel), null);
 639		builder.setPositiveButton(getString(R.string.delete_messages),
 640				new OnClickListener() {
 641
 642					@Override
 643					public void onClick(DialogInterface dialog, int which) {
 644						activity.xmppConnectionService
 645								.clearConversationHistory(conversation);
 646						if (endConversationCheckBox.isChecked()) {
 647							endConversation(conversation);
 648						}
 649					}
 650				});
 651		builder.create().show();
 652	}
 653
 654	protected ConversationFragment swapConversationFragment() {
 655		ConversationFragment selectedFragment = new ConversationFragment();
 656
 657		FragmentTransaction transaction = getFragmentManager()
 658				.beginTransaction();
 659		transaction.replace(R.id.selected_conversation, selectedFragment,
 660				"conversation");
 661		transaction.commit();
 662		return selectedFragment;
 663	}
 664
 665	@Override
 666	public boolean onKeyDown(int keyCode, KeyEvent event) {
 667		if (keyCode == KeyEvent.KEYCODE_BACK) {
 668			if (!spl.isOpen()) {
 669				spl.openPane();
 670				return false;
 671			}
 672		}
 673		return super.onKeyDown(keyCode, event);
 674	}
 675
 676	@Override
 677	protected void onNewIntent(Intent intent) {
 678		if ((Intent.ACTION_VIEW.equals(intent.getAction()) && (VIEW_CONVERSATION
 679				.equals(intent.getType())))) {
 680			String convToView = (String) intent.getExtras().get(CONVERSATION);
 681			updateConversationList();
 682			for (int i = 0; i < conversationList.size(); ++i) {
 683				if (conversationList.get(i).getUuid().equals(convToView)) {
 684					setSelectedConversation(conversationList.get(i));
 685					break;
 686				}
 687			}
 688			paneShouldBeOpen = false;
 689			String text = intent.getExtras().getString(TEXT, null);
 690			swapConversationFragment().setText(text);
 691		}
 692	}
 693
 694	@Override
 695	public void onStart() {
 696		super.onStart();
 697		SharedPreferences preferences = PreferenceManager
 698				.getDefaultSharedPreferences(this);
 699		this.useSubject = preferences.getBoolean("use_subject_in_muc", true);
 700		this.showLastseen = preferences.getBoolean("show_last_seen", false);
 701		if (this.xmppConnectionServiceBound) {
 702			this.onBackendConnected();
 703		}
 704		if (conversationList.size() >= 1) {
 705			onConvChanged.onConversationListChanged();
 706		}
 707	}
 708
 709	@Override
 710	protected void onStop() {
 711		if (xmppConnectionServiceBound) {
 712			xmppConnectionService.removeOnConversationListChangedListener();
 713		}
 714		super.onStop();
 715	}
 716
 717	@Override
 718	void onBackendConnected() {
 719		this.registerListener();
 720		if (conversationList.size() == 0) {
 721			updateConversationList();
 722		}
 723
 724		if ((getIntent().getAction() != null)
 725				&& (getIntent().getAction().equals(Intent.ACTION_VIEW) && (!handledViewIntent))) {
 726			if (getIntent().getType().equals(
 727					ConversationActivity.VIEW_CONVERSATION)) {
 728				handledViewIntent = true;
 729
 730				String convToView = (String) getIntent().getExtras().get(
 731						CONVERSATION);
 732
 733				for (int i = 0; i < conversationList.size(); ++i) {
 734					if (conversationList.get(i).getUuid().equals(convToView)) {
 735						setSelectedConversation(conversationList.get(i));
 736					}
 737				}
 738				paneShouldBeOpen = false;
 739				String text = getIntent().getExtras().getString(TEXT, null);
 740				swapConversationFragment().setText(text);
 741			}
 742		} else {
 743			if (xmppConnectionService.getAccounts().size() == 0) {
 744				startActivity(new Intent(this, ManageAccountActivity.class));
 745				finish();
 746			} else if (conversationList.size() <= 0) {
 747				// add no history
 748				startActivity(new Intent(this, ContactsActivity.class));
 749				finish();
 750			} else {
 751				spl.openPane();
 752				// find currently loaded fragment
 753				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 754						.findFragmentByTag("conversation");
 755				if (selectedFragment != null) {
 756					selectedFragment.onBackendConnected();
 757				} else {
 758					setSelectedConversation(conversationList.get(0));
 759					swapConversationFragment();
 760				}
 761				ExceptionHelper.checkForCrash(this, this.xmppConnectionService);
 762			}
 763		}
 764	}
 765
 766	public void registerListener() {
 767		if (xmppConnectionServiceBound) {
 768			xmppConnectionService
 769					.setOnConversationListChangedListener(this.onConvChanged);
 770		}
 771	}
 772
 773	@Override
 774	protected void onActivityResult(int requestCode, int resultCode,
 775			final Intent data) {
 776		super.onActivityResult(requestCode, resultCode, data);
 777		if (resultCode == RESULT_OK) {
 778			if (requestCode == REQUEST_DECRYPT_PGP) {
 779				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
 780						.findFragmentByTag("conversation");
 781				if (selectedFragment != null) {
 782					selectedFragment.hidePgpPassphraseBox();
 783				}
 784			} else if (requestCode == REQUEST_ATTACH_FILE_DIALOG) {
 785				attachImageToConversation(getSelectedConversation(),
 786						data.getData());
 787			} else if (requestCode == REQUEST_SEND_PGP_IMAGE) {
 788
 789			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
 790				attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 791			} else if (requestCode == ATTACHMENT_CHOICE_TAKE_PHOTO) {
 792				attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
 793			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
 794				announcePgp(getSelectedConversation().getAccount(),
 795						getSelectedConversation());
 796			} else if (requestCode == REQUEST_ENCRYPT_MESSAGE) {
 797				// encryptTextMessage();
 798			} else if (requestCode == REQUEST_IMAGE_CAPTURE) {
 799				attachImageToConversation(getSelectedConversation(), null);
 800			} else if (requestCode == REQUEST_RECORD_AUDIO) {
 801				Log.d("xmppService", data.getData().toString());
 802				attachAudioToConversation(getSelectedConversation(),
 803						data.getData());
 804			} else {
 805				Log.d(LOGTAG, "unknown result code:" + requestCode);
 806			}
 807		}
 808	}
 809
 810	private void attachAudioToConversation(Conversation conversation, Uri uri) {
 811
 812	}
 813
 814	private void attachImageToConversation(Conversation conversation, Uri uri) {
 815		prepareImageToast = Toast.makeText(getApplicationContext(),
 816				getText(R.string.preparing_image), Toast.LENGTH_LONG);
 817		prepareImageToast.show();
 818		xmppConnectionService.attachImageToConversation(conversation, uri,
 819				new UiCallback<Message>() {
 820
 821					@Override
 822					public void userInputRequried(PendingIntent pi,
 823							Message object) {
 824						hidePrepareImageToast();
 825						ConversationActivity.this.runIntent(pi,
 826								ConversationActivity.REQUEST_SEND_PGP_IMAGE);
 827					}
 828
 829					@Override
 830					public void success(Message message) {
 831						message.getConversation().getMessages().add(message);
 832						xmppConnectionService.databaseBackend
 833								.createMessage(message);
 834						xmppConnectionService.sendMessage(message, null);
 835						xmppConnectionService.updateUi(
 836								message.getConversation(), false);
 837					}
 838
 839					@Override
 840					public void error(int error, Message message) {
 841						hidePrepareImageToast();
 842						displayErrorDialog(error);
 843					}
 844				});
 845	}
 846
 847	private void hidePrepareImageToast() {
 848		if (prepareImageToast != null) {
 849			runOnUiThread(new Runnable() {
 850
 851				@Override
 852				public void run() {
 853					prepareImageToast.cancel();
 854				}
 855			});
 856		}
 857	}
 858
 859	public void updateConversationList() {
 860		conversationList.clear();
 861		conversationList.addAll(xmppConnectionService.getConversations());
 862		listView.invalidateViews();
 863	}
 864
 865	public void selectPresence(final Conversation conversation,
 866			final OnPresenceSelected listener, String reason) {
 867		Account account = conversation.getAccount();
 868		if (account.getStatus() != Account.STATUS_ONLINE) {
 869			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 870			builder.setTitle(getString(R.string.not_connected));
 871			builder.setIconAttribute(android.R.attr.alertDialogIcon);
 872			if ("otr".equals(reason)) {
 873				builder.setMessage(getString(R.string.you_are_offline,
 874						getString(R.string.otr_messages)));
 875			} else if ("file".equals(reason)) {
 876				builder.setMessage(getString(R.string.you_are_offline,
 877						getString(R.string.files)));
 878			} else {
 879				builder.setMessage(getString(R.string.you_are_offline_blank));
 880			}
 881			builder.setNegativeButton(getString(R.string.cancel), null);
 882			builder.setPositiveButton(getString(R.string.manage_account),
 883					new OnClickListener() {
 884
 885						@Override
 886						public void onClick(DialogInterface dialog, int which) {
 887							startActivity(new Intent(activity,
 888									ManageAccountActivity.class));
 889						}
 890					});
 891			builder.create().show();
 892			listener.onPresenceSelected(false, null);
 893		} else {
 894			Contact contact = conversation.getContact();
 895			if (contact == null) {
 896				showAddToRosterDialog(conversation);
 897				listener.onPresenceSelected(false, null);
 898			} else {
 899				Hashtable<String, Integer> presences = contact.getPresences();
 900				if (presences.size() == 0) {
 901					AlertDialog.Builder builder = new AlertDialog.Builder(this);
 902					builder.setTitle(getString(R.string.contact_offline));
 903					if ("otr".equals(reason)) {
 904						builder.setMessage(getString(R.string.contact_offline_otr));
 905						builder.setPositiveButton(
 906								getString(R.string.send_unencrypted),
 907								new OnClickListener() {
 908
 909									@Override
 910									public void onClick(DialogInterface dialog,
 911											int which) {
 912										listener.onSendPlainTextInstead();
 913									}
 914								});
 915					} else if ("file".equals(reason)) {
 916						builder.setMessage(getString(R.string.contact_offline_file));
 917					}
 918					builder.setIconAttribute(android.R.attr.alertDialogIcon);
 919					builder.setNegativeButton(getString(R.string.cancel), null);
 920					builder.create().show();
 921					listener.onPresenceSelected(false, null);
 922				} else if (presences.size() == 1) {
 923					String presence = (String) presences.keySet().toArray()[0];
 924					conversation.setNextPresence(presence);
 925					listener.onPresenceSelected(true, presence);
 926				} else {
 927					AlertDialog.Builder builder = new AlertDialog.Builder(this);
 928					builder.setTitle(getString(R.string.choose_presence));
 929					final String[] presencesArray = new String[presences.size()];
 930					presences.keySet().toArray(presencesArray);
 931					builder.setItems(presencesArray,
 932							new DialogInterface.OnClickListener() {
 933
 934								@Override
 935								public void onClick(DialogInterface dialog,
 936										int which) {
 937									String presence = presencesArray[which];
 938									conversation.setNextPresence(presence);
 939									listener.onPresenceSelected(true, presence);
 940								}
 941							});
 942					builder.create().show();
 943				}
 944			}
 945		}
 946	}
 947
 948	public boolean showLastseen() {
 949		if (getSelectedConversation() == null) {
 950			return false;
 951		} else {
 952			return this.showLastseen
 953					&& getSelectedConversation().getMode() == Conversation.MODE_SINGLE;
 954		}
 955	}
 956
 957	private void showAddToRosterDialog(final Conversation conversation) {
 958		String jid = conversation.getContactJid();
 959		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 960		builder.setTitle(jid);
 961		builder.setMessage(getString(R.string.not_in_roster));
 962		builder.setNegativeButton(getString(R.string.cancel), null);
 963		builder.setPositiveButton(getString(R.string.add_contact),
 964				new DialogInterface.OnClickListener() {
 965
 966					@Override
 967					public void onClick(DialogInterface dialog, int which) {
 968						String jid = conversation.getContactJid();
 969						Account account = getSelectedConversation()
 970								.getAccount();
 971						Contact contact = account.getRoster().getContact(jid);
 972						xmppConnectionService.createContact(contact);
 973					}
 974				});
 975		builder.create().show();
 976	}
 977
 978	public void runIntent(PendingIntent pi, int requestCode) {
 979		try {
 980			this.startIntentSenderForResult(pi.getIntentSender(), requestCode,
 981					null, 0, 0, 0);
 982		} catch (SendIntentException e1) {
 983			Log.d("xmppService", "failed to start intent to send message");
 984		}
 985	}
 986
 987	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
 988		private final WeakReference<ImageView> imageViewReference;
 989		private Message message = null;
 990
 991		public BitmapWorkerTask(ImageView imageView) {
 992			imageViewReference = new WeakReference<ImageView>(imageView);
 993		}
 994
 995		@Override
 996		protected Bitmap doInBackground(Message... params) {
 997			message = params[0];
 998			try {
 999				return xmppConnectionService.getFileBackend().getThumbnail(
1000						message, (int) (metrics.density * 288), false);
1001			} catch (FileNotFoundException e) {
1002				Log.d("xmppService", "file not found!");
1003				return null;
1004			}
1005		}
1006
1007		@Override
1008		protected void onPostExecute(Bitmap bitmap) {
1009			if (imageViewReference != null && bitmap != null) {
1010				final ImageView imageView = imageViewReference.get();
1011				if (imageView != null) {
1012					imageView.setImageBitmap(bitmap);
1013					imageView.setBackgroundColor(0x00000000);
1014				}
1015			}
1016		}
1017	}
1018
1019	public void loadBitmap(Message message, ImageView imageView) {
1020		Bitmap bm;
1021		try {
1022			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
1023					(int) (metrics.density * 288), true);
1024		} catch (FileNotFoundException e) {
1025			bm = null;
1026		}
1027		if (bm != null) {
1028			imageView.setImageBitmap(bm);
1029			imageView.setBackgroundColor(0x00000000);
1030		} else {
1031			if (cancelPotentialWork(message, imageView)) {
1032				imageView.setBackgroundColor(0xff333333);
1033				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
1034				final AsyncDrawable asyncDrawable = new AsyncDrawable(
1035						getResources(), null, task);
1036				imageView.setImageDrawable(asyncDrawable);
1037				task.execute(message);
1038			}
1039		}
1040	}
1041
1042	public static boolean cancelPotentialWork(Message message,
1043			ImageView imageView) {
1044		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
1045
1046		if (bitmapWorkerTask != null) {
1047			final Message oldMessage = bitmapWorkerTask.message;
1048			if (oldMessage == null || message != oldMessage) {
1049				bitmapWorkerTask.cancel(true);
1050			} else {
1051				return false;
1052			}
1053		}
1054		return true;
1055	}
1056
1057	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
1058		if (imageView != null) {
1059			final Drawable drawable = imageView.getDrawable();
1060			if (drawable instanceof AsyncDrawable) {
1061				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
1062				return asyncDrawable.getBitmapWorkerTask();
1063			}
1064		}
1065		return null;
1066	}
1067
1068	static class AsyncDrawable extends BitmapDrawable {
1069		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1070
1071		public AsyncDrawable(Resources res, Bitmap bitmap,
1072				BitmapWorkerTask bitmapWorkerTask) {
1073			super(res, bitmap);
1074			bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>(
1075					bitmapWorkerTask);
1076		}
1077
1078		public BitmapWorkerTask getBitmapWorkerTask() {
1079			return bitmapWorkerTaskReference.get();
1080		}
1081	}
1082
1083	public void encryptTextMessage(Message message) {
1084		xmppConnectionService.getPgpEngine().encrypt(message,
1085				new UiCallback<Message>() {
1086
1087					@Override
1088					public void userInputRequried(PendingIntent pi,
1089							Message message) {
1090						activity.runIntent(pi,
1091								ConversationActivity.REQUEST_SEND_MESSAGE);
1092					}
1093
1094					@Override
1095					public void success(Message message) {
1096						xmppConnectionService.sendMessage(message, null);
1097					}
1098
1099					@Override
1100					public void error(int error, Message message) {
1101
1102					}
1103				});
1104	}
1105}