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.services.XmppConnectionService.OnConversationUpdate;
 14import eu.siacs.conversations.utils.ExceptionHelper;
 15import eu.siacs.conversations.utils.UIHelper;
 16import android.net.Uri;
 17import android.os.AsyncTask;
 18import android.os.Bundle;
 19import android.preference.PreferenceManager;
 20import android.provider.MediaStore;
 21import android.app.AlertDialog;
 22import android.app.FragmentTransaction;
 23import android.app.PendingIntent;
 24import android.content.Context;
 25import android.content.DialogInterface;
 26import android.content.DialogInterface.OnClickListener;
 27import android.content.IntentSender.SendIntentException;
 28import android.content.Intent;
 29import android.content.SharedPreferences;
 30import android.content.res.Resources;
 31import android.graphics.Bitmap;
 32import android.graphics.Color;
 33import android.graphics.Typeface;
 34import android.graphics.drawable.BitmapDrawable;
 35import android.graphics.drawable.Drawable;
 36import android.support.v4.widget.SlidingPaneLayout;
 37import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
 38import android.util.DisplayMetrics;
 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 OnConversationUpdate onConvChanged = new OnConversationUpdate() {
 87		
 88		@Override
 89		public void onConversationUpdate() {
 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									StartConversationActivity.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 menuAttach = (MenuItem) menu.findItem(R.id.action_attach_file);
309		MenuItem menuClearHistory = (MenuItem) menu
310				.findItem(R.id.action_clear_history);
311		MenuItem menuAdd = (MenuItem) menu.findItem(R.id.action_add);
312		MenuItem menuInviteContact = (MenuItem) menu.findItem(R.id.action_invite);
313
314		if ((spl.isOpen() && (spl.isSlideable()))) {
315			menuArchive.setVisible(false);
316			menuMucDetails.setVisible(false);
317			menuContactDetails.setVisible(false);
318			menuSecure.setVisible(false);
319			menuInviteContact.setVisible(false);
320			menuAttach.setVisible(false);
321			menuClearHistory.setVisible(false);
322		} else {
323			menuAdd.setVisible(!spl.isSlideable());
324			if (this.getSelectedConversation() != null) {
325				if (this.getSelectedConversation().getLatestMessage()
326						.getEncryption() != Message.ENCRYPTION_NONE) {
327					menuSecure.setIcon(R.drawable.ic_action_secure);
328				}
329				if (this.getSelectedConversation().getMode() == Conversation.MODE_MULTI) {
330					menuContactDetails.setVisible(false);
331					menuAttach.setVisible(false);
332				} else {
333					menuMucDetails.setVisible(false);
334					menuInviteContact.setVisible(false);
335				}
336			}
337		}
338		return true;
339	}
340
341	private void selectPresenceToAttachFile(final int attachmentChoice) {
342		selectPresence(getSelectedConversation(), new OnPresenceSelected() {
343
344			@Override
345			public void onPresenceSelected() {
346				if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO) {
347					Intent takePictureIntent = new Intent(
348							MediaStore.ACTION_IMAGE_CAPTURE);
349					takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
350							ImageProvider.getIncomingContentUri());
351					if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
352						startActivityForResult(takePictureIntent,
353								REQUEST_IMAGE_CAPTURE);
354					}
355				} else if (attachmentChoice == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
356					Intent attachFileIntent = new Intent();
357					attachFileIntent.setType("image/*");
358					attachFileIntent.setAction(Intent.ACTION_GET_CONTENT);
359					Intent chooser = Intent.createChooser(attachFileIntent,
360							getString(R.string.attach_file));
361					startActivityForResult(chooser, REQUEST_ATTACH_FILE_DIALOG);
362				} else if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
363					Intent intent = new Intent(
364							MediaStore.Audio.Media.RECORD_SOUND_ACTION);
365					startActivityForResult(intent, REQUEST_RECORD_AUDIO);
366				}
367			}
368		});
369	}
370
371	private void attachFile(final int attachmentChoice) {
372		final Conversation conversation = getSelectedConversation();
373		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
374			if (hasPgp()) {
375				if (conversation.getContact().getPgpKeyId() != 0) {
376					xmppConnectionService.getPgpEngine().hasKey(
377							conversation.getContact(),
378							new UiCallback<Contact>() {
379
380								@Override
381								public void userInputRequried(PendingIntent pi,
382										Contact contact) {
383									ConversationActivity.this.runIntent(pi,
384											attachmentChoice);
385								}
386
387								@Override
388								public void success(Contact contact) {
389									selectPresenceToAttachFile(attachmentChoice);
390								}
391
392								@Override
393								public void error(int error, Contact contact) {
394									displayErrorDialog(error);
395								}
396							});
397				} else {
398					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
399							.findFragmentByTag("conversation");
400					if (fragment != null) {
401						fragment.showNoPGPKeyDialog(false,
402								new OnClickListener() {
403
404									@Override
405									public void onClick(DialogInterface dialog,
406											int which) {
407										conversation
408												.setNextEncryption(Message.ENCRYPTION_NONE);
409										selectPresenceToAttachFile(attachmentChoice);
410									}
411								});
412					}
413				}
414			} else {
415				showInstallPgpDialog();
416			}
417		} else if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_NONE) {
418			selectPresenceToAttachFile(attachmentChoice);
419		} else {
420			selectPresenceToAttachFile(attachmentChoice);
421		}
422	}
423
424	@Override
425	public boolean onOptionsItemSelected(MenuItem item) {
426		switch (item.getItemId()) {
427		case android.R.id.home:
428			spl.openPane();
429			break;
430		case R.id.action_attach_file:
431			View menuAttachFile = findViewById(R.id.action_attach_file);
432			if (menuAttachFile==null) {
433				break;
434			}
435			PopupMenu attachFilePopup = new PopupMenu(this, menuAttachFile);
436			attachFilePopup.inflate(R.menu.attachment_choices);
437			attachFilePopup
438					.setOnMenuItemClickListener(new OnMenuItemClickListener() {
439
440						@Override
441						public boolean onMenuItemClick(MenuItem item) {
442							switch (item.getItemId()) {
443							case R.id.attach_choose_picture:
444								attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
445								break;
446							case R.id.attach_take_picture:
447								attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
448								break;
449							case R.id.attach_record_voice:
450								attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
451								break;
452							}
453							return false;
454						}
455					});
456			attachFilePopup.show();
457			break;
458		case R.id.action_add:
459			startActivity(new Intent(this, StartConversationActivity.class));
460			break;
461		case R.id.action_archive:
462			this.endConversation(getSelectedConversation());
463			break;
464		case R.id.action_contact_details:
465			Contact contact = this.getSelectedConversation().getContact();
466			if (contact.showInRoster()) {
467				switchToContactDetails(contact);
468			} else {
469				showAddToRosterDialog(getSelectedConversation());
470			}
471			break;
472		case R.id.action_muc_details:
473			Intent intent = new Intent(this, ConferenceDetailsActivity.class);
474			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
475			intent.putExtra("uuid", getSelectedConversation().getUuid());
476			startActivity(intent);
477			break;
478		case R.id.action_invite:
479			inviteToConversation(getSelectedConversation());
480			break;
481		case R.id.action_security:
482			final Conversation conversation = getSelectedConversation();
483			View menuItemView = findViewById(R.id.action_security);
484			if (menuItemView==null) {
485				break;
486			}
487			PopupMenu popup = new PopupMenu(this, menuItemView);
488			final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
489					.findFragmentByTag("conversation");
490			if (fragment != null) {
491				popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
492
493					@Override
494					public boolean onMenuItemClick(MenuItem item) {
495						switch (item.getItemId()) {
496						case R.id.encryption_choice_none:
497							conversation
498									.setNextEncryption(Message.ENCRYPTION_NONE);
499							item.setChecked(true);
500							break;
501						case R.id.encryption_choice_otr:
502							conversation
503									.setNextEncryption(Message.ENCRYPTION_OTR);
504							item.setChecked(true);
505							break;
506						case R.id.encryption_choice_pgp:
507							if (hasPgp()) {
508								if (conversation.getAccount().getKeys()
509										.has("pgp_signature")) {
510									conversation
511											.setNextEncryption(Message.ENCRYPTION_PGP);
512									item.setChecked(true);
513								} else {
514									announcePgp(conversation.getAccount(),
515											conversation);
516								}
517							} else {
518								showInstallPgpDialog();
519							}
520							break;
521						default:
522							conversation
523									.setNextEncryption(Message.ENCRYPTION_NONE);
524							break;
525						}
526						fragment.updateChatMsgHint();
527						return true;
528					}
529				});
530				popup.inflate(R.menu.encryption_choices);
531				MenuItem otr = popup.getMenu().findItem(
532						R.id.encryption_choice_otr);
533				if (conversation.getMode() == Conversation.MODE_MULTI) {
534					otr.setEnabled(false);
535				}
536				switch (conversation.getNextEncryption()) {
537				case Message.ENCRYPTION_NONE:
538					popup.getMenu().findItem(R.id.encryption_choice_none)
539							.setChecked(true);
540					break;
541				case Message.ENCRYPTION_OTR:
542					otr.setChecked(true);
543					break;
544				case Message.ENCRYPTION_PGP:
545					popup.getMenu().findItem(R.id.encryption_choice_pgp)
546							.setChecked(true);
547					break;
548				default:
549					popup.getMenu().findItem(R.id.encryption_choice_none)
550							.setChecked(true);
551					break;
552				}
553				popup.show();
554			}
555
556			break;
557		case R.id.action_clear_history:
558			clearHistoryDialog(getSelectedConversation());
559			break;
560		default:
561			break;
562		}
563		return super.onOptionsItemSelected(item);
564	}
565
566	public void endConversation(Conversation conversation) {
567		conversation.setStatus(Conversation.STATUS_ARCHIVED);
568		paneShouldBeOpen = true;
569		spl.openPane();
570		xmppConnectionService.archiveConversation(conversation);
571		if (conversationList.size() > 0) {
572			setSelectedConversation(conversationList.get(0));
573		} else {
574			setSelectedConversation(null);
575		}
576	}
577
578	protected void clearHistoryDialog(final Conversation conversation) {
579		AlertDialog.Builder builder = new AlertDialog.Builder(this);
580		builder.setTitle(getString(R.string.clear_conversation_history));
581		View dialogView = getLayoutInflater().inflate(
582				R.layout.dialog_clear_history, null);
583		final CheckBox endConversationCheckBox = (CheckBox) dialogView
584				.findViewById(R.id.end_conversation_checkbox);
585		builder.setView(dialogView);
586		builder.setNegativeButton(getString(R.string.cancel), null);
587		builder.setPositiveButton(getString(R.string.delete_messages),
588				new OnClickListener() {
589
590					@Override
591					public void onClick(DialogInterface dialog, int which) {
592						activity.xmppConnectionService
593								.clearConversationHistory(conversation);
594						if (endConversationCheckBox.isChecked()) {
595							endConversation(conversation);
596						}
597					}
598				});
599		builder.create().show();
600	}
601
602	protected ConversationFragment swapConversationFragment() {
603		ConversationFragment selectedFragment = new ConversationFragment();
604
605		FragmentTransaction transaction = getFragmentManager()
606				.beginTransaction();
607		transaction.replace(R.id.selected_conversation, selectedFragment,
608				"conversation");
609		transaction.commitAllowingStateLoss();
610		return selectedFragment;
611	}
612
613	@Override
614	public boolean onKeyDown(int keyCode, KeyEvent event) {
615		if (keyCode == KeyEvent.KEYCODE_BACK) {
616			if (!spl.isOpen()) {
617				spl.openPane();
618				return false;
619			}
620		}
621		return super.onKeyDown(keyCode, event);
622	}
623
624	@Override
625	protected void onNewIntent(Intent intent) {
626		if (xmppConnectionServiceBound) {
627			if ((Intent.ACTION_VIEW.equals(intent.getAction()) && (VIEW_CONVERSATION
628					.equals(intent.getType())))) {
629				String convToView = (String) intent.getExtras().get(CONVERSATION);
630				updateConversationList();
631				for (int i = 0; i < conversationList.size(); ++i) {
632					if (conversationList.get(i).getUuid().equals(convToView)) {
633						setSelectedConversation(conversationList.get(i));
634						break;
635					}
636				}
637				paneShouldBeOpen = false;
638				String text = intent.getExtras().getString(TEXT, null);
639				swapConversationFragment().setText(text);
640			}
641		} else {
642			handledViewIntent = false;
643			setIntent(intent);
644		}
645	}
646
647	@Override
648	public void onStart() {
649		super.onStart();
650		SharedPreferences preferences = PreferenceManager
651				.getDefaultSharedPreferences(this);
652		this.useSubject = preferences.getBoolean("use_subject_in_muc", true);
653		this.showLastseen = preferences.getBoolean("show_last_seen", false);
654		if (this.xmppConnectionServiceBound) {
655			this.onBackendConnected();
656		}
657		if (conversationList.size() >= 1) {
658			onConvChanged.onConversationUpdate();
659		}
660	}
661
662	@Override
663	protected void onStop() {
664		if (xmppConnectionServiceBound) {
665			xmppConnectionService.removeOnConversationListChangedListener();
666		}
667		super.onStop();
668	}
669
670	@Override
671	void onBackendConnected() {
672		this.registerListener();
673		if (conversationList.size() == 0) {
674			updateConversationList();
675		}
676
677		if ((getIntent().getAction() != null)
678				&& (getIntent().getAction().equals(Intent.ACTION_VIEW) && (!handledViewIntent))) {
679			if (getIntent().getType().equals(
680					ConversationActivity.VIEW_CONVERSATION)) {
681				handledViewIntent = true;
682
683				String convToView = (String) getIntent().getExtras().get(
684						CONVERSATION);
685
686				for (int i = 0; i < conversationList.size(); ++i) {
687					if (conversationList.get(i).getUuid().equals(convToView)) {
688						setSelectedConversation(conversationList.get(i));
689					}
690				}
691				paneShouldBeOpen = false;
692				String text = getIntent().getExtras().getString(TEXT, null);
693				swapConversationFragment().setText(text);
694			}
695		} else {
696			if (xmppConnectionService.getAccounts().size() == 0) {
697				startActivity(new Intent(this, ManageAccountActivity.class));
698				finish();
699			} else if (conversationList.size() <= 0) {
700				// add no history
701				startActivity(new Intent(this, StartConversationActivity.class));
702				finish();
703			} else {
704				spl.openPane();
705				// find currently loaded fragment
706				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
707						.findFragmentByTag("conversation");
708				if (selectedFragment != null) {
709					selectedFragment.onBackendConnected();
710				} else {
711					setSelectedConversation(conversationList.get(0));
712					swapConversationFragment();
713				}
714				ExceptionHelper.checkForCrash(this, this.xmppConnectionService);
715			}
716		}
717	}
718
719	public void registerListener() {
720		if (xmppConnectionServiceBound) {
721			xmppConnectionService
722					.setOnConversationListChangedListener(this.onConvChanged);
723		}
724	}
725
726	@Override
727	protected void onActivityResult(int requestCode, int resultCode,
728			final Intent data) {
729		super.onActivityResult(requestCode, resultCode, data);
730		if (resultCode == RESULT_OK) {
731			if (requestCode == REQUEST_DECRYPT_PGP) {
732				ConversationFragment selectedFragment = (ConversationFragment) getFragmentManager()
733						.findFragmentByTag("conversation");
734				if (selectedFragment != null) {
735					selectedFragment.hideSnackbar();
736				}
737			} else if (requestCode == REQUEST_ATTACH_FILE_DIALOG) {
738				attachImageToConversation(getSelectedConversation(),
739						data.getData());
740			} else if (requestCode == REQUEST_SEND_PGP_IMAGE) {
741
742			} else if (requestCode == ATTACHMENT_CHOICE_CHOOSE_IMAGE) {
743				attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
744			} else if (requestCode == ATTACHMENT_CHOICE_TAKE_PHOTO) {
745				attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
746			} else if (requestCode == REQUEST_ANNOUNCE_PGP) {
747				announcePgp(getSelectedConversation().getAccount(),
748						getSelectedConversation());
749			} else if (requestCode == REQUEST_ENCRYPT_MESSAGE) {
750				// encryptTextMessage();
751			} else if (requestCode == REQUEST_IMAGE_CAPTURE) {
752				attachImageToConversation(getSelectedConversation(), null);
753			} else if (requestCode == REQUEST_RECORD_AUDIO) {
754				attachAudioToConversation(getSelectedConversation(),
755						data.getData());
756			}
757		}
758	}
759
760	private void attachAudioToConversation(Conversation conversation, Uri uri) {
761
762	}
763
764	private void attachImageToConversation(Conversation conversation, Uri uri) {
765		prepareImageToast = Toast.makeText(getApplicationContext(),
766				getText(R.string.preparing_image), Toast.LENGTH_LONG);
767		prepareImageToast.show();
768		xmppConnectionService.attachImageToConversation(conversation, uri,
769				new UiCallback<Message>() {
770
771					@Override
772					public void userInputRequried(PendingIntent pi,
773							Message object) {
774						hidePrepareImageToast();
775						ConversationActivity.this.runIntent(pi,
776								ConversationActivity.REQUEST_SEND_PGP_IMAGE);
777					}
778
779					@Override
780					public void success(Message message) {
781						xmppConnectionService.sendMessage(message);
782					}
783
784					@Override
785					public void error(int error, Message message) {
786						hidePrepareImageToast();
787						displayErrorDialog(error);
788					}
789				});
790	}
791
792	private void hidePrepareImageToast() {
793		if (prepareImageToast != null) {
794			runOnUiThread(new Runnable() {
795
796				@Override
797				public void run() {
798					prepareImageToast.cancel();
799				}
800			});
801		}
802	}
803
804	public void updateConversationList() {
805		xmppConnectionService.populateWithOrderedConversations(conversationList);
806		listView.invalidateViews();
807	}
808
809	public boolean showLastseen() {
810		if (getSelectedConversation() == null) {
811			return false;
812		} else {
813			return this.showLastseen
814					&& getSelectedConversation().getMode() == Conversation.MODE_SINGLE;
815		}
816	}
817
818	public void runIntent(PendingIntent pi, int requestCode) {
819		try {
820			this.startIntentSenderForResult(pi.getIntentSender(), requestCode,
821					null, 0, 0, 0);
822		} catch (SendIntentException e1) {}
823	}
824
825	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
826		private final WeakReference<ImageView> imageViewReference;
827		private Message message = null;
828
829		public BitmapWorkerTask(ImageView imageView) {
830			imageViewReference = new WeakReference<ImageView>(imageView);
831		}
832
833		@Override
834		protected Bitmap doInBackground(Message... params) {
835			message = params[0];
836			try {
837				return xmppConnectionService.getFileBackend().getThumbnail(
838						message, (int) (metrics.density * 288), false);
839			} catch (FileNotFoundException e) {
840				return null;
841			}
842		}
843
844		@Override
845		protected void onPostExecute(Bitmap bitmap) {
846			if (imageViewReference != null && bitmap != null) {
847				final ImageView imageView = imageViewReference.get();
848				if (imageView != null) {
849					imageView.setImageBitmap(bitmap);
850					imageView.setBackgroundColor(0x00000000);
851				}
852			}
853		}
854	}
855
856	public void loadBitmap(Message message, ImageView imageView) {
857		Bitmap bm;
858		try {
859			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
860					(int) (metrics.density * 288), true);
861		} catch (FileNotFoundException e) {
862			bm = null;
863		}
864		if (bm != null) {
865			imageView.setImageBitmap(bm);
866			imageView.setBackgroundColor(0x00000000);
867		} else {
868			if (cancelPotentialWork(message, imageView)) {
869				imageView.setBackgroundColor(0xff333333);
870				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
871				final AsyncDrawable asyncDrawable = new AsyncDrawable(
872						getResources(), null, task);
873				imageView.setImageDrawable(asyncDrawable);
874				task.execute(message);
875			}
876		}
877	}
878
879	public static boolean cancelPotentialWork(Message message,
880			ImageView imageView) {
881		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
882
883		if (bitmapWorkerTask != null) {
884			final Message oldMessage = bitmapWorkerTask.message;
885			if (oldMessage == null || message != oldMessage) {
886				bitmapWorkerTask.cancel(true);
887			} else {
888				return false;
889			}
890		}
891		return true;
892	}
893
894	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
895		if (imageView != null) {
896			final Drawable drawable = imageView.getDrawable();
897			if (drawable instanceof AsyncDrawable) {
898				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
899				return asyncDrawable.getBitmapWorkerTask();
900			}
901		}
902		return null;
903	}
904
905	static class AsyncDrawable extends BitmapDrawable {
906		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
907
908		public AsyncDrawable(Resources res, Bitmap bitmap,
909				BitmapWorkerTask bitmapWorkerTask) {
910			super(res, bitmap);
911			bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>(
912					bitmapWorkerTask);
913		}
914
915		public BitmapWorkerTask getBitmapWorkerTask() {
916			return bitmapWorkerTaskReference.get();
917		}
918	}
919
920	public void encryptTextMessage(Message message) {
921		xmppConnectionService.getPgpEngine().encrypt(message,
922				new UiCallback<Message>() {
923
924					@Override
925					public void userInputRequried(PendingIntent pi,
926							Message message) {
927						activity.runIntent(pi,
928								ConversationActivity.REQUEST_SEND_MESSAGE);
929					}
930
931					@Override
932					public void success(Message message) {
933						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
934						xmppConnectionService.sendMessage(message);
935					}
936
937					@Override
938					public void error(int error, Message message) {
939
940					}
941				});
942	}
943}