ConversationActivity.java

  1package eu.siacs.conversations.ui;
  2
  3import java.io.FileNotFoundException;
  4import java.lang.ref.WeakReference;
  5import java.util.ArrayList;
  6import java.util.List;
  7
  8import eu.siacs.conversations.R;
  9import eu.siacs.conversations.entities.Contact;
 10import eu.siacs.conversations.entities.Conversation;
 11import eu.siacs.conversations.entities.Message;
 12import eu.siacs.conversations.services.ImageProvider;
 13import eu.siacs.conversations.utils.ExceptionHelper;
 14import eu.siacs.conversations.utils.UIHelper;
 15import android.net.Uri;
 16import android.os.AsyncTask;
 17import android.os.Bundle;
 18import android.preference.PreferenceManager;
 19import android.provider.MediaStore;
 20import android.app.AlertDialog;
 21import android.app.FragmentTransaction;
 22import android.app.PendingIntent;
 23import android.content.Context;
 24import android.content.DialogInterface;
 25import android.content.DialogInterface.OnClickListener;
 26import android.content.IntentSender.SendIntentException;
 27import android.content.Intent;
 28import android.content.SharedPreferences;
 29import android.content.res.Resources;
 30import android.graphics.Bitmap;
 31import android.graphics.Color;
 32import android.graphics.Typeface;
 33import android.graphics.drawable.BitmapDrawable;
 34import android.graphics.drawable.Drawable;
 35import android.support.v4.widget.SlidingPaneLayout;
 36import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
 37import android.util.DisplayMetrics;
 38import android.util.Log;
 39import android.view.KeyEvent;
 40import android.view.LayoutInflater;
 41import android.view.Menu;
 42import android.view.MenuItem;
 43import android.view.View;
 44import android.view.ViewGroup;
 45import android.widget.AdapterView;
 46import android.widget.AdapterView.OnItemClickListener;
 47import android.widget.ArrayAdapter;
 48import android.widget.CheckBox;
 49import android.widget.ListView;
 50import android.widget.PopupMenu;
 51import android.widget.PopupMenu.OnMenuItemClickListener;
 52import android.widget.TextView;
 53import android.widget.ImageView;
 54import android.widget.Toast;
 55
 56public class ConversationActivity extends XmppActivity {
 57
 58	public static final String VIEW_CONVERSATION = "viewConversation";
 59	public static final String CONVERSATION = "conversationUuid";
 60	public static final String TEXT = "text";
 61	public static final String PRESENCE = "eu.siacs.conversations.presence";
 62
 63	public static final int REQUEST_SEND_MESSAGE = 0x75441;
 64	public static final int REQUEST_DECRYPT_PGP = 0x76783;
 65	private static final int REQUEST_ATTACH_FILE_DIALOG = 0x48502;
 66	private static final int REQUEST_IMAGE_CAPTURE = 0x33788;
 67	private static final int REQUEST_RECORD_AUDIO = 0x46189;
 68	private static final int REQUEST_SEND_PGP_IMAGE = 0x53883;
 69	public static final int REQUEST_ENCRYPT_MESSAGE = 0x378018;
 70
 71	private static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x92734;
 72	private static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x84123;
 73	private static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x75291;
 74
 75	protected SlidingPaneLayout spl;
 76
 77	private List<Conversation> conversationList = new ArrayList<Conversation>();
 78	private Conversation selectedConversation = null;
 79	private ListView listView;
 80
 81	private boolean paneShouldBeOpen = true;
 82	private boolean useSubject = true;
 83	private boolean showLastseen = false;
 84	private ArrayAdapter<Conversation> listAdapter;
 85
 86	private OnConversationListChangedListener onConvChanged = new OnConversationListChangedListener() {
 87
 88		@Override
 89		public void onConversationListChanged() {
 90			runOnUiThread(new Runnable() {
 91
 92				@Override
 93				public void run() {
 94					updateConversationList();
 95					if (paneShouldBeOpen) {
 96						if (conversationList.size() >= 1) {
 97							swapConversationFragment();
 98						} else {
 99							startActivity(new Intent(getApplicationContext(),
100									ContactsActivity.class));
101							finish();
102						}
103					}
104					ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
105							.findFragmentByTag("conversation");
106					if (selectedFragment != null) {
107						selectedFragment.updateMessages();
108					}
109				}
110			});
111		}
112	};
113
114	protected ConversationActivity activity = this;
115	private DisplayMetrics metrics;
116	private Toast prepareImageToast;
117
118	public List<Conversation> getConversationList() {
119		return this.conversationList;
120	}
121
122	public Conversation getSelectedConversation() {
123		return this.selectedConversation;
124	}
125
126	public void setSelectedConversation(Conversation conversation) {
127		this.selectedConversation = conversation;
128	}
129
130	public ListView getConversationListView() {
131		return this.listView;
132	}
133
134	public SlidingPaneLayout getSlidingPaneLayout() {
135		return this.spl;
136	}
137
138	public boolean shouldPaneBeOpen() {
139		return paneShouldBeOpen;
140	}
141
142	@Override
143	protected void onCreate(Bundle savedInstanceState) {
144
145		metrics = getResources().getDisplayMetrics();
146
147		super.onCreate(savedInstanceState);
148
149		setContentView(R.layout.fragment_conversations_overview);
150
151		listView = (ListView) findViewById(R.id.list);
152
153		this.listAdapter = new ArrayAdapter<Conversation>(this,
154				R.layout.conversation_list_row, conversationList) {
155			@Override
156			public View getView(int position, View view, ViewGroup parent) {
157				if (view == null) {
158					LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
159					view = (View) inflater.inflate(
160							R.layout.conversation_list_row, null);
161				}
162				Conversation conv;
163				if (conversationList.size() > position) {
164					conv = getItem(position);
165				} else {
166					return view;
167				}
168				if (!spl.isSlideable()) {
169					if (conv == getSelectedConversation()) {
170						view.setBackgroundColor(0xffdddddd);
171					} else {
172						view.setBackgroundColor(Color.TRANSPARENT);
173					}
174				} else {
175					view.setBackgroundColor(Color.TRANSPARENT);
176				}
177				TextView convName = (TextView) view
178						.findViewById(R.id.conversation_name);
179				convName.setText(conv.getName(useSubject));
180				TextView convLastMsg = (TextView) view
181						.findViewById(R.id.conversation_lastmsg);
182				ImageView imagePreview = (ImageView) view
183						.findViewById(R.id.conversation_lastimage);
184
185				Message latestMessage = conv.getLatestMessage();
186
187				if (latestMessage.getType() == Message.TYPE_TEXT) {
188					if ((latestMessage.getEncryption() != Message.ENCRYPTION_PGP)
189							&& (latestMessage.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED)) {
190						convLastMsg.setText(conv.getLatestMessage().getBody());
191					} else {
192						convLastMsg
193								.setText(getText(R.string.encrypted_message_received));
194					}
195					convLastMsg.setVisibility(View.VISIBLE);
196					imagePreview.setVisibility(View.GONE);
197				} else if (latestMessage.getType() == Message.TYPE_IMAGE) {
198					if (latestMessage.getStatus() >= Message.STATUS_RECIEVED) {
199						convLastMsg.setVisibility(View.GONE);
200						imagePreview.setVisibility(View.VISIBLE);
201						loadBitmap(latestMessage, imagePreview);
202					} else {
203						convLastMsg.setVisibility(View.VISIBLE);
204						imagePreview.setVisibility(View.GONE);
205						if (latestMessage.getStatus() == Message.STATUS_RECEIVED_OFFER) {
206							convLastMsg
207									.setText(getText(R.string.image_offered_for_download));
208						} else if (latestMessage.getStatus() == Message.STATUS_RECIEVING) {
209							convLastMsg
210									.setText(getText(R.string.receiving_image));
211						} else {
212							convLastMsg.setText("");
213						}
214					}
215				}
216
217				if (!conv.isRead()) {
218					convName.setTypeface(null, Typeface.BOLD);
219					convLastMsg.setTypeface(null, Typeface.BOLD);
220				} else {
221					convName.setTypeface(null, Typeface.NORMAL);
222					convLastMsg.setTypeface(null, Typeface.NORMAL);
223				}
224
225				((TextView) view.findViewById(R.id.conversation_lastupdate))
226						.setText(UIHelper.readableTimeDifference(getContext(),
227								conv.getLatestMessage().getTimeSent()));
228
229				ImageView profilePicture = (ImageView) view
230						.findViewById(R.id.conversation_image);
231				profilePicture.setImageBitmap(UIHelper.getContactPicture(conv,
232						56, activity.getApplicationContext(), false));
233
234				return view;
235			}
236
237		};
238
239		listView.setAdapter(this.listAdapter);
240
241		listView.setOnItemClickListener(new OnItemClickListener() {
242
243			@Override
244			public void onItemClick(AdapterView<?> arg0, View clickedView,
245					int position, long arg3) {
246				paneShouldBeOpen = false;
247				if (getSelectedConversation() != conversationList.get(position)) {
248					setSelectedConversation(conversationList.get(position));
249					swapConversationFragment(); // .onBackendConnected(conversationList.get(position));
250				} else {
251					spl.closePane();
252				}
253			}
254		});
255		spl = (SlidingPaneLayout) findViewById(R.id.slidingpanelayout);
256		spl.setParallaxDistance(150);
257		spl.setShadowResource(R.drawable.es_slidingpane_shadow);
258		spl.setSliderFadeColor(0);
259		spl.setPanelSlideListener(new PanelSlideListener() {
260
261			@Override
262			public void onPanelOpened(View arg0) {
263				paneShouldBeOpen = true;
264				getActionBar().setDisplayHomeAsUpEnabled(false);
265				getActionBar().setHomeButtonEnabled(false);
266				getActionBar().setTitle(R.string.app_name);
267				invalidateOptionsMenu();
268				hideKeyboard();
269			}
270
271			@Override
272			public void onPanelClosed(View arg0) {
273				paneShouldBeOpen = false;
274				if ((conversationList.size() > 0)
275						&& (getSelectedConversation() != null)) {
276					getActionBar().setDisplayHomeAsUpEnabled(true);
277					getActionBar().setHomeButtonEnabled(true);
278					getActionBar().setTitle(
279							getSelectedConversation().getName(useSubject));
280					invalidateOptionsMenu();
281					if (!getSelectedConversation().isRead()) {
282						xmppConnectionService
283								.markRead(getSelectedConversation());
284						UIHelper.updateNotification(getApplicationContext(),
285								getConversationList(), null, false);
286						listView.invalidateViews();
287					}
288				}
289			}
290
291			@Override
292			public void onPanelSlide(View arg0, float arg1) {
293				// TODO Auto-generated method stub
294
295			}
296		});
297	}
298
299	@Override
300	public boolean onCreateOptionsMenu(Menu menu) {
301		getMenuInflater().inflate(R.menu.conversations, menu);
302		MenuItem menuSecure = (MenuItem) menu.findItem(R.id.action_security);
303		MenuItem menuArchive = (MenuItem) menu.findItem(R.id.action_archive);
304		MenuItem menuMucDetails = (MenuItem) menu
305				.findItem(R.id.action_muc_details);
306		MenuItem menuContactDetails = (MenuItem) menu
307				.findItem(R.id.action_contact_details);
308		MenuItem menuInviteContacts = (MenuItem) menu
309				.findItem(R.id.action_invite);
310		MenuItem menuAttach = (MenuItem) menu.findItem(R.id.action_attach_file);
311		MenuItem menuClearHistory = (MenuItem) menu
312				.findItem(R.id.action_clear_history);
313
314		if ((spl.isOpen() && (spl.isSlideable()))) {
315			menuArchive.setVisible(false);
316			menuMucDetails.setVisible(false);
317			menuContactDetails.setVisible(false);
318			menuSecure.setVisible(false);
319			menuInviteContacts.setVisible(false);
320			menuAttach.setVisible(false);
321			menuClearHistory.setVisible(false);
322		} else {
323			((MenuItem) menu.findItem(R.id.action_add)).setVisible(!spl
324					.isSlideable());
325			if (this.getSelectedConversation() != null) {
326				if (this.getSelectedConversation().getLatestMessage()
327						.getEncryption() != Message.ENCRYPTION_NONE) {
328					menuSecure.setIcon(R.drawable.ic_action_secure);
329				}
330				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
331					menuContactDetails.setVisible(false);
332					menuAttach.setVisible(false);
333				} else {
334					menuMucDetails.setVisible(false);
335					menuInviteContacts.setVisible(false);
336				}
337			}
338		}
339		return true;
340	}
341
342	private void selectPresenceToAttachFile(final int attachmentChoice) {
343		selectPresence(getSelectedConversation(), new OnPresenceSelected() {
344
345			@Override
346			public void onPresenceSelected() {
347				if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO) {
348					Intent takePictureIntent = new Intent(
349							MediaStore.ACTION_IMAGE_CAPTURE);
350					takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
351							ImageProvider.getIncomingContentUri());
352					if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
353						startActivityForResult(takePictureIntent,
354								REQUEST_IMAGE_CAPTURE);
355					}
356				} else if (attachmentChoice == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
357					Intent attachFileIntent = new Intent();
358					attachFileIntent.setType("image/*");
359					attachFileIntent.setAction(Intent.ACTION_GET_CONTENT);
360					Intent chooser = Intent.createChooser(attachFileIntent,
361							getString(R.string.attach_file));
362					startActivityForResult(chooser, REQUEST_ATTACH_FILE_DIALOG);
363				} else if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
364					Intent intent = new Intent(
365							MediaStore.Audio.Media.RECORD_SOUND_ACTION);
366					startActivityForResult(intent, REQUEST_RECORD_AUDIO);
367				}
368			}
369		});
370	}
371
372	private void attachFile(final int attachmentChoice) {
373		final Conversation conversation = getSelectedConversation();
374		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
375			if (hasPgp()) {
376				if (conversation.getContact().getPgpKeyId() != 0) {
377					xmppConnectionService.getPgpEngine().hasKey(
378							conversation.getContact(),
379							new UiCallback<Contact>() {
380
381								@Override
382								public void userInputRequried(PendingIntent pi,
383										Contact contact) {
384									ConversationActivity.this.runIntent(pi,
385											attachmentChoice);
386								}
387
388								@Override
389								public void success(Contact contact) {
390									selectPresenceToAttachFile(attachmentChoice);
391								}
392
393								@Override
394								public void error(int error, Contact contact) {
395									displayErrorDialog(error);
396								}
397							});
398				} else {
399					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
400							.findFragmentByTag("conversation");
401					if (fragment != null) {
402						fragment.showNoPGPKeyDialog(false,
403								new OnClickListener() {
404
405									@Override
406									public void onClick(DialogInterface dialog,
407											int which) {
408										conversation
409												.setNextEncryption(Message.ENCRYPTION_NONE);
410										selectPresenceToAttachFile(attachmentChoice);
411									}
412								});
413					}
414				}
415			} else {
416				showInstallPgpDialog();
417			}
418		} else if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_NONE) {
419			selectPresenceToAttachFile(attachmentChoice);
420		} else {
421			selectPresenceToAttachFile(attachmentChoice);
422			/*AlertDialog.Builder builder = new AlertDialog.Builder(this);
423			builder.setTitle(getString(R.string.otr_file_transfer));
424			builder.setMessage(getString(R.string.otr_file_transfer_msg));
425			builder.setNegativeButton(getString(R.string.cancel), null);
426			if (conversation.getContact().getPgpKeyId() == 0) {
427				builder.setPositiveButton(getString(R.string.send_unencrypted),
428						new OnClickListener() {
429
430							@Override
431							public void onClick(DialogInterface dialog,
432									int which) {
433								conversation
434										.setNextEncryption(Message.ENCRYPTION_NONE);
435								attachFile(attachmentChoice);
436							}
437						});
438			} else {
439				builder.setPositiveButton(
440						getString(R.string.use_pgp_encryption),
441						new OnClickListener() {
442
443							@Override
444							public void onClick(DialogInterface dialog,
445									int which) {
446								conversation
447										.setNextEncryption(Message.ENCRYPTION_PGP);
448								attachFile(attachmentChoice);
449							}
450						});
451			}
452			builder.create().show();*/
453		}
454	}
455
456	@Override
457	public boolean onOptionsItemSelected(MenuItem item) {
458		switch (item.getItemId()) {
459		case android.R.id.home:
460			spl.openPane();
461			break;
462		case R.id.action_attach_file:
463			View menuAttachFile = findViewById(R.id.action_attach_file);
464			if (menuAttachFile==null) {
465				break;
466			}
467			PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
468			attachFilePopup.inflate(R.menu.attachment_choices);
469			attachFilePopup
470					.setOnMenuItemClickListener(new OnMenuItemClickListener() {
471
472						@Override
473						public boolean onMenuItemClick(MenuItem item) {
474							switch (item.getItemId()) {
475							case R.id.attach_choose_picture:
476								attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
477								break;
478							case R.id.attach_take_picture:
479								attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
480								break;
481							case R.id.attach_record_voice:
482								attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
483								break;
484							}
485							return false;
486						}
487					});
488			attachFilePopup.show();
489			break;
490		case R.id.action_add:
491			startActivity(new Intent(this, StartConversation.class));
492			break;
493		case R.id.action_archive:
494			this.endConversation(getSelectedConversation());
495			break;
496		case R.id.action_contact_details:
497			Contact contact = this.getSelectedConversation().getContact();
498			if (contact.showInRoster()) {
499				switchToContactDetails(contact);
500			} else {
501				showAddToRosterDialog(getSelectedConversation());
502			}
503			break;
504		case R.id.action_muc_details:
505			Intent intent = new Intent(this, MucDetailsActivity.class);
506			intent.setAction(MucDetailsActivity.ACTION_VIEW_MUC);
507			intent.putExtra("uuid", getSelectedConversation().getUuid());
508			startActivity(intent);
509			break;
510		case R.id.action_invite:
511			Intent inviteIntent = new Intent(getApplicationContext(),
512					ContactsActivity.class);
513			inviteIntent.setAction("invite");
514			inviteIntent.putExtra("uuid", getSelectedConversation().getUuid());
515			startActivity(inviteIntent);
516			break;
517		case R.id.action_security:
518			final Conversation conversation = getSelectedConversation();
519			View menuItemView = findViewById(R.id.action_security);
520			if (menuItemView==null) {
521				break;
522			}
523			PopupMenu popup = new PopupMenu(this, menuItemView);
524			final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
525					.findFragmentByTag("conversation");
526			if (fragment != null) {
527				popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
528
529					@Override
530					public boolean onMenuItemClick(MenuItem item) {
531						switch (item.getItemId()) {
532						case R.id.encryption_choice_none:
533							conversation
534									.setNextEncryption(Message.ENCRYPTION_NONE);
535							item.setChecked(true);
536							break;
537						case R.id.encryption_choice_otr:
538							conversation
539									.setNextEncryption(Message.ENCRYPTION_OTR);
540							item.setChecked(true);
541							break;
542						case R.id.encryption_choice_pgp:
543							if (hasPgp()) {
544								if (conversation.getAccount().getKeys()
545										.has("pgp_signature")) {
546									conversation
547											.setNextEncryption(Message.ENCRYPTION_PGP);
548									item.setChecked(true);
549								} else {
550									announcePgp(conversation.getAccount(),
551											conversation);
552								}
553							} else {
554								showInstallPgpDialog();
555							}
556							break;
557						default:
558							conversation
559									.setNextEncryption(Message.ENCRYPTION_NONE);
560							break;
561						}
562						fragment.updateChatMsgHint();
563						return true;
564					}
565				});
566				popup.inflate(R.menu.encryption_choices);
567				MenuItem otr = popup.getMenu().findItem(
568						R.id.encryption_choice_otr);
569				if (conversation.getMode() == Conversation.MODE_MULTI) {
570					otr.setEnabled(false);
571				}
572				switch (conversation.getNextEncryption()) {
573				case Message.ENCRYPTION_NONE:
574					popup.getMenu().findItem(R.id.encryption_choice_none)
575							.setChecked(true);
576					break;
577				case Message.ENCRYPTION_OTR:
578					otr.setChecked(true);
579					break;
580				case Message.ENCRYPTION_PGP:
581					popup.getMenu().findItem(R.id.encryption_choice_pgp)
582							.setChecked(true);
583					break;
584				default:
585					popup.getMenu().findItem(R.id.encryption_choice_none)
586							.setChecked(true);
587					break;
588				}
589				popup.show();
590			}
591
592			break;
593		case R.id.action_clear_history:
594			clearHistoryDialog(getSelectedConversation());
595			break;
596		default:
597			break;
598		}
599		return super.onOptionsItemSelected(item);
600	}
601
602	private void endConversation(Conversation conversation) {
603		conversation.setStatus(Conversation.STATUS_ARCHIVED);
604		paneShouldBeOpen = true;
605		spl.openPane();
606		xmppConnectionService.archiveConversation(conversation);
607		if (conversationList.size() > 0) {
608			setSelectedConversation(conversationList.get(0));
609		} else {
610			setSelectedConversation(null);
611		}
612	}
613
614	protected void clearHistoryDialog(final Conversation conversation) {
615		AlertDialog.Builder builder = new AlertDialog.Builder(this);
616		builder.setTitle(getString(R.string.clear_conversation_history));
617		View dialogView = getLayoutInflater().inflate(
618				R.layout.dialog_clear_history, null);
619		final CheckBox endConversationCheckBox = (CheckBox) dialogView
620				.findViewById(R.id.end_conversation_checkbox);
621		builder.setView(dialogView);
622		builder.setNegativeButton(getString(R.string.cancel), null);
623		builder.setPositiveButton(getString(R.string.delete_messages),
624				new OnClickListener() {
625
626					@Override
627					public void onClick(DialogInterface dialog, int which) {
628						activity.xmppConnectionService
629								.clearConversationHistory(conversation);
630						if (endConversationCheckBox.isChecked()) {
631							endConversation(conversation);
632						}
633					}
634				});
635		builder.create().show();
636	}
637
638	protected ConversationFragment swapConversationFragment() {
639		ConversationFragment selectedFragment = new ConversationFragment();
640
641		FragmentTransaction transaction = getFragmentManager()
642				.beginTransaction();
643		transaction.replace(R.id.selected_conversation, selectedFragment,
644				"conversation");
645		transaction.commitAllowingStateLoss();
646		return selectedFragment;
647	}
648
649	@Override
650	public boolean onKeyDown(int keyCode, KeyEvent event) {
651		if (keyCode == KeyEvent.KEYCODE_BACK) {
652			if (!spl.isOpen()) {
653				spl.openPane();
654				return false;
655			}
656		}
657		return super.onKeyDown(keyCode, event);
658	}
659
660	@Override
661	protected void onNewIntent(Intent intent) {
662		if ((Intent.ACTION_VIEW.equals(intent.getAction()) && (VIEW_CONVERSATION
663				.equals(intent.getType())))) {
664			String convToView = (String) intent.getExtras().get(CONVERSATION);
665			updateConversationList();
666			for (int i = 0; i < conversationList.size(); ++i) {
667				if (conversationList.get(i).getUuid().equals(convToView)) {
668					setSelectedConversation(conversationList.get(i));
669					break;
670				}
671			}
672			paneShouldBeOpen = false;
673			String text = intent.getExtras().getString(TEXT, null);
674			swapConversationFragment().setText(text);
675		}
676	}
677
678	@Override
679	public void onStart() {
680		super.onStart();
681		SharedPreferences preferences = PreferenceManager
682				.getDefaultSharedPreferences(this);
683		this.useSubject = preferences.getBoolean("use_subject_in_muc", true);
684		this.showLastseen = preferences.getBoolean("show_last_seen", false);
685		if (this.xmppConnectionServiceBound) {
686			this.onBackendConnected();
687		}
688		if (conversationList.size() >= 1) {
689			onConvChanged.onConversationListChanged();
690		}
691	}
692
693	@Override
694	protected void onStop() {
695		if (xmppConnectionServiceBound) {
696			xmppConnectionService.removeOnConversationListChangedListener();
697		}
698		super.onStop();
699	}
700
701	@Override
702	void onBackendConnected() {
703		this.registerListener();
704		if (conversationList.size() == 0) {
705			updateConversationList();
706		}
707
708		if ((getIntent().getAction() != null)
709				&& (getIntent().getAction().equals(Intent.ACTION_VIEW) && (!handledViewIntent))) {
710			if (getIntent().getType().equals(
711					ConversationActivity.VIEW_CONVERSATION)) {
712				handledViewIntent = true;
713
714				String convToView = (String) getIntent().getExtras().get(
715						CONVERSATION);
716
717				for (int i = 0; i < conversationList.size(); ++i) {
718					if (conversationList.get(i).getUuid().equals(convToView)) {
719						setSelectedConversation(conversationList.get(i));
720					}
721				}
722				paneShouldBeOpen = false;
723				String text = getIntent().getExtras().getString(TEXT, null);
724				swapConversationFragment().setText(text);
725			}
726		} else {
727			if (xmppConnectionService.getAccounts().size() == 0) {
728				startActivity(new Intent(this, ManageAccountActivity.class));
729				finish();
730			} else if (conversationList.size() <= 0) {
731				// add no history
732				startActivity(new Intent(this, ContactsActivity.class));
733				finish();
734			} else {
735				spl.openPane();
736				// find currently loaded fragment
737				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
738						.findFragmentByTag("conversation");
739				if (selectedFragment != null) {
740					selectedFragment.onBackendConnected();
741				} else {
742					setSelectedConversation(conversationList.get(0));
743					swapConversationFragment();
744				}
745				ExceptionHelper.checkForCrash(this, this.xmppConnectionService);
746			}
747		}
748	}
749
750	public void registerListener() {
751		if (xmppConnectionServiceBound) {
752			xmppConnectionService
753					.setOnConversationListChangedListener(this.onConvChanged);
754		}
755	}
756
757	@Override
758	protected void onActivityResult(int requestCode, int resultCode,
759			final Intent data) {
760		super.onActivityResult(requestCode, resultCode, data);
761		if (resultCode == RESULT_OK) {
762			if (requestCode == REQUEST_DECRYPT_PGP) {
763				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
764						.findFragmentByTag("conversation");
765				if (selectedFragment != null) {
766					selectedFragment.hideSnackbar();
767				}
768			} else if (requestCode == REQUEST_ATTACH_FILE_DIALOG) {
769				attachImageToConversation(getSelectedConversation(),
770						data.getData());
771			} else if (requestCode == REQUEST_SEND_PGP_IMAGE) {
772
773			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
774				attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
775			} else if (requestCode == ATTACHMENT_CHOICE_TAKE_PHOTO) {
776				attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
777			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
778				announcePgp(getSelectedConversation().getAccount(),
779						getSelectedConversation());
780			} else if (requestCode == REQUEST_ENCRYPT_MESSAGE) {
781				// encryptTextMessage();
782			} else if (requestCode == REQUEST_IMAGE_CAPTURE) {
783				attachImageToConversation(getSelectedConversation(), null);
784			} else if (requestCode == REQUEST_RECORD_AUDIO) {
785				Log.d("xmppService", data.getData().toString());
786				attachAudioToConversation(getSelectedConversation(),
787						data.getData());
788			} else {
789				Log.d(LOGTAG, "unknown result code:" + requestCode);
790			}
791		}
792	}
793
794	private void attachAudioToConversation(Conversation conversation, Uri uri) {
795
796	}
797
798	private void attachImageToConversation(Conversation conversation, Uri uri) {
799		prepareImageToast = Toast.makeText(getApplicationContext(),
800				getText(R.string.preparing_image), Toast.LENGTH_LONG);
801		prepareImageToast.show();
802		xmppConnectionService.attachImageToConversation(conversation, uri,
803				new UiCallback<Message>() {
804
805					@Override
806					public void userInputRequried(PendingIntent pi,
807							Message object) {
808						hidePrepareImageToast();
809						ConversationActivity.this.runIntent(pi,
810								ConversationActivity.REQUEST_SEND_PGP_IMAGE);
811					}
812
813					@Override
814					public void success(Message message) {
815						xmppConnectionService.sendMessage(message);
816					}
817
818					@Override
819					public void error(int error, Message message) {
820						hidePrepareImageToast();
821						displayErrorDialog(error);
822					}
823				});
824	}
825
826	private void hidePrepareImageToast() {
827		if (prepareImageToast != null) {
828			runOnUiThread(new Runnable() {
829
830				@Override
831				public void run() {
832					prepareImageToast.cancel();
833				}
834			});
835		}
836	}
837
838	public void updateConversationList() {
839		conversationList.clear();
840		conversationList.addAll(xmppConnectionService.getConversations());
841		listView.invalidateViews();
842	}
843
844	public boolean showLastseen() {
845		if (getSelectedConversation() == null) {
846			return false;
847		} else {
848			return this.showLastseen
849					&& getSelectedConversation().getMode() == Conversation.MODE_SINGLE;
850		}
851	}
852
853	public void runIntent(PendingIntent pi, int requestCode) {
854		try {
855			this.startIntentSenderForResult(pi.getIntentSender(), requestCode,
856					null, 0, 0, 0);
857		} catch (SendIntentException e1) {
858			Log.d("xmppService", "failed to start intent to send message");
859		}
860	}
861
862	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
863		private final WeakReference<ImageView> imageViewReference;
864		private Message message = null;
865
866		public BitmapWorkerTask(ImageView imageView) {
867			imageViewReference = new WeakReference<ImageView>(imageView);
868		}
869
870		@Override
871		protected Bitmap doInBackground(Message... params) {
872			message = params[0];
873			try {
874				return xmppConnectionService.getFileBackend().getThumbnail(
875						message, (int) (metrics.density * 288), false);
876			} catch (FileNotFoundException e) {
877				Log.d("xmppService", "file not found!");
878				return null;
879			}
880		}
881
882		@Override
883		protected void onPostExecute(Bitmap bitmap) {
884			if (imageViewReference != null && bitmap != null) {
885				final ImageView imageView = imageViewReference.get();
886				if (imageView != null) {
887					imageView.setImageBitmap(bitmap);
888					imageView.setBackgroundColor(0x00000000);
889				}
890			}
891		}
892	}
893
894	public void loadBitmap(Message message, ImageView imageView) {
895		Bitmap bm;
896		try {
897			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
898					(int) (metrics.density * 288), true);
899		} catch (FileNotFoundException e) {
900			bm = null;
901		}
902		if (bm != null) {
903			imageView.setImageBitmap(bm);
904			imageView.setBackgroundColor(0x00000000);
905		} else {
906			if (cancelPotentialWork(message, imageView)) {
907				imageView.setBackgroundColor(0xff333333);
908				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
909				final AsyncDrawable asyncDrawable = new AsyncDrawable(
910						getResources(), null, task);
911				imageView.setImageDrawable(asyncDrawable);
912				task.execute(message);
913			}
914		}
915	}
916
917	public static boolean cancelPotentialWork(Message message,
918			ImageView imageView) {
919		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
920
921		if (bitmapWorkerTask != null) {
922			final Message oldMessage = bitmapWorkerTask.message;
923			if (oldMessage == null || message != oldMessage) {
924				bitmapWorkerTask.cancel(true);
925			} else {
926				return false;
927			}
928		}
929		return true;
930	}
931
932	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
933		if (imageView != null) {
934			final Drawable drawable = imageView.getDrawable();
935			if (drawable instanceof AsyncDrawable) {
936				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
937				return asyncDrawable.getBitmapWorkerTask();
938			}
939		}
940		return null;
941	}
942
943	static class AsyncDrawable extends BitmapDrawable {
944		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
945
946		public AsyncDrawable(Resources res, Bitmap bitmap,
947				BitmapWorkerTask bitmapWorkerTask) {
948			super(res, bitmap);
949			bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>(
950					bitmapWorkerTask);
951		}
952
953		public BitmapWorkerTask getBitmapWorkerTask() {
954			return bitmapWorkerTaskReference.get();
955		}
956	}
957
958	public void encryptTextMessage(Message message) {
959		xmppConnectionService.getPgpEngine().encrypt(message,
960				new UiCallback<Message>() {
961
962					@Override
963					public void userInputRequried(PendingIntent pi,
964							Message message) {
965						activity.runIntent(pi,
966								ConversationActivity.REQUEST_SEND_MESSAGE);
967					}
968
969					@Override
970					public void success(Message message) {
971						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
972						xmppConnectionService.sendMessage(message);
973					}
974
975					@Override
976					public void error(int error, Message message) {
977
978					}
979				});
980	}
981}