MessageAdapter.java

  1package eu.siacs.conversations.ui.adapter;
  2
  3import android.content.ActivityNotFoundException;
  4import android.content.Intent;
  5import android.content.pm.PackageManager;
  6import android.content.pm.ResolveInfo;
  7import android.content.res.Resources;
  8import android.graphics.Bitmap;
  9import android.graphics.Typeface;
 10import android.graphics.drawable.BitmapDrawable;
 11import android.graphics.drawable.Drawable;
 12import android.net.Uri;
 13import android.os.AsyncTask;
 14import android.os.Build;
 15import android.support.v4.content.FileProvider;
 16import android.text.Spannable;
 17import android.text.SpannableString;
 18import android.text.SpannableStringBuilder;
 19import android.text.Spanned;
 20import android.text.style.ForegroundColorSpan;
 21import android.text.style.RelativeSizeSpan;
 22import android.text.style.StyleSpan;
 23import android.text.util.Linkify;
 24import android.util.DisplayMetrics;
 25import android.util.Patterns;
 26import android.view.View;
 27import android.view.View.OnClickListener;
 28import android.view.View.OnLongClickListener;
 29import android.view.ViewGroup;
 30import android.widget.ArrayAdapter;
 31import android.widget.Button;
 32import android.widget.ImageView;
 33import android.widget.LinearLayout;
 34import android.widget.TextView;
 35import android.widget.Toast;
 36
 37import java.lang.ref.WeakReference;
 38import java.net.URL;
 39import java.util.List;
 40import java.util.concurrent.RejectedExecutionException;
 41import java.util.regex.MatchResult;
 42import java.util.regex.Matcher;
 43import java.util.regex.Pattern;
 44
 45import eu.siacs.conversations.Config;
 46import eu.siacs.conversations.R;
 47import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
 48import eu.siacs.conversations.entities.Account;
 49import eu.siacs.conversations.entities.Conversation;
 50import eu.siacs.conversations.entities.DownloadableFile;
 51import eu.siacs.conversations.entities.Message;
 52import eu.siacs.conversations.entities.Message.FileParams;
 53import eu.siacs.conversations.entities.Transferable;
 54import eu.siacs.conversations.persistance.FileBackend;
 55import eu.siacs.conversations.ui.ConversationActivity;
 56import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
 57import eu.siacs.conversations.ui.widget.ListSelectionManager;
 58import eu.siacs.conversations.utils.CryptoHelper;
 59import eu.siacs.conversations.utils.GeoHelper;
 60import eu.siacs.conversations.utils.UIHelper;
 61
 62public class MessageAdapter extends ArrayAdapter<Message> {
 63
 64	private static final int SENT = 0;
 65	private static final int RECEIVED = 1;
 66	private static final int STATUS = 2;
 67	private static final Pattern XMPP_PATTERN = Pattern
 68			.compile("xmpp\\:(?:(?:["
 69					+ Patterns.GOOD_IRI_CHAR
 70					+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
 71					+ "|(?:\\%[a-fA-F0-9]{2}))+");
 72
 73	private ConversationActivity activity;
 74
 75	private DisplayMetrics metrics;
 76
 77	private OnContactPictureClicked mOnContactPictureClickedListener;
 78	private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
 79
 80	private boolean mIndicateReceived = false;
 81	private boolean mUseGreenBackground = false;
 82
 83	private final ListSelectionManager listSelectionManager = new ListSelectionManager();
 84
 85	public MessageAdapter(ConversationActivity activity, List<Message> messages) {
 86		super(activity, 0, messages);
 87		this.activity = activity;
 88		metrics = getContext().getResources().getDisplayMetrics();
 89		updatePreferences();
 90	}
 91
 92	public void setOnContactPictureClicked(OnContactPictureClicked listener) {
 93		this.mOnContactPictureClickedListener = listener;
 94	}
 95
 96	public void setOnContactPictureLongClicked(
 97			OnContactPictureLongClicked listener) {
 98		this.mOnContactPictureLongClickedListener = listener;
 99			}
100
101	@Override
102	public int getViewTypeCount() {
103		return 3;
104	}
105
106	public int getItemViewType(Message message) {
107		if (message.getType() == Message.TYPE_STATUS) {
108			return STATUS;
109		} else if (message.getStatus() <= Message.STATUS_RECEIVED) {
110			return RECEIVED;
111		}
112
113		return SENT;
114	}
115
116	@Override
117	public int getItemViewType(int position) {
118		return this.getItemViewType(getItem(position));
119	}
120
121	private int getMessageTextColor(boolean onDark, boolean primary) {
122		if (onDark) {
123			return activity.getResources().getColor(primary ? R.color.white : R.color.white70);
124		} else {
125			return activity.getResources().getColor(primary ? R.color.black87 : R.color.black54);
126		}
127	}
128
129	private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
130		String filesize = null;
131		String info = null;
132		boolean error = false;
133		if (viewHolder.indicatorReceived != null) {
134			viewHolder.indicatorReceived.setVisibility(View.GONE);
135		}
136
137		if (viewHolder.edit_indicator != null) {
138			if (message.edited()) {
139				viewHolder.edit_indicator.setVisibility(View.VISIBLE);
140				viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
141				viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
142			} else {
143				viewHolder.edit_indicator.setVisibility(View.GONE);
144			}
145		}
146		boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
147			&& message.getMergedStatus() <= Message.STATUS_RECEIVED;
148		if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE || message.getTransferable() != null) {
149			FileParams params = message.getFileParams();
150			if (params.size > (1.5 * 1024 * 1024)) {
151				filesize = params.size / (1024 * 1024)+ " MiB";
152			} else if (params.size > 0) {
153				filesize = params.size / 1024 + " KiB";
154			}
155			if (message.getTransferable() != null && message.getTransferable().getStatus() == Transferable.STATUS_FAILED) {
156				error = true;
157			}
158		}
159		switch (message.getMergedStatus()) {
160			case Message.STATUS_WAITING:
161				info = getContext().getString(R.string.waiting);
162				break;
163			case Message.STATUS_UNSEND:
164				Transferable d = message.getTransferable();
165				if (d!=null) {
166					info = getContext().getString(R.string.sending_file,d.getProgress());
167				} else {
168					info = getContext().getString(R.string.sending);
169				}
170				break;
171			case Message.STATUS_OFFERED:
172				info = getContext().getString(R.string.offering);
173				break;
174			case Message.STATUS_SEND_RECEIVED:
175				if (mIndicateReceived) {
176					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
177				}
178				break;
179			case Message.STATUS_SEND_DISPLAYED:
180				if (mIndicateReceived) {
181					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
182				}
183				break;
184			case Message.STATUS_SEND_FAILED:
185				info = getContext().getString(R.string.send_failed);
186				error = true;
187				break;
188			default:
189				if (multiReceived) {
190					info = UIHelper.getMessageDisplayName(message);
191				}
192				break;
193		}
194		if (error && type == SENT) {
195			viewHolder.time.setTextColor(activity.getWarningTextColor());
196		} else {
197			viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground,false));
198		}
199		if (message.getEncryption() == Message.ENCRYPTION_NONE) {
200			viewHolder.indicator.setVisibility(View.GONE);
201		} else {
202			viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
203			viewHolder.indicator.setVisibility(View.VISIBLE);
204			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
205				XmppAxolotlSession.Trust trust = message.getConversation()
206						.getAccount().getAxolotlService().getFingerprintTrust(
207								message.getFingerprint());
208
209				if(trust == null || (!trust.trusted() && !trust.trustedInactive())) {
210					viewHolder.indicator.setColorFilter(activity.getWarningTextColor());
211					viewHolder.indicator.setAlpha(1.0f);
212				} else {
213					viewHolder.indicator.clearColorFilter();
214					if (darkBackground) {
215						viewHolder.indicator.setAlpha(0.7f);
216					} else {
217						viewHolder.indicator.setAlpha(0.57f);
218					}
219				}
220			} else {
221				viewHolder.indicator.clearColorFilter();
222				if (darkBackground) {
223					viewHolder.indicator.setAlpha(0.7f);
224				} else {
225					viewHolder.indicator.setAlpha(0.57f);
226				}
227			}
228		}
229
230		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(),
231				message.getMergedTimeSent());
232		if (message.getStatus() <= Message.STATUS_RECEIVED) {
233			if ((filesize != null) && (info != null)) {
234				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize +" \u00B7 " + info);
235			} else if ((filesize == null) && (info != null)) {
236				viewHolder.time.setText(formatedTime + " \u00B7 " + info);
237			} else if ((filesize != null) && (info == null)) {
238				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize);
239			} else {
240				viewHolder.time.setText(formatedTime);
241			}
242		} else {
243			if ((filesize != null) && (info != null)) {
244				viewHolder.time.setText(filesize + " \u00B7 " + info);
245			} else if ((filesize == null) && (info != null)) {
246				if (error) {
247					viewHolder.time.setText(info + " \u00B7 " + formatedTime);
248				} else {
249					viewHolder.time.setText(info);
250				}
251			} else if ((filesize != null) && (info == null)) {
252				viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
253			} else {
254				viewHolder.time.setText(formatedTime);
255			}
256		}
257	}
258
259	private void displayInfoMessage(ViewHolder viewHolder, String text, boolean darkBackground) {
260		if (viewHolder.download_button != null) {
261			viewHolder.download_button.setVisibility(View.GONE);
262		}
263		viewHolder.image.setVisibility(View.GONE);
264		viewHolder.messageBody.setVisibility(View.VISIBLE);
265		viewHolder.messageBody.setText(text);
266		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
267		viewHolder.messageBody.setTypeface(null, Typeface.ITALIC);
268		viewHolder.messageBody.setTextIsSelectable(false);
269	}
270
271	private void displayDecryptionFailed(ViewHolder viewHolder, boolean darkBackground) {
272		if (viewHolder.download_button != null) {
273			viewHolder.download_button.setVisibility(View.GONE);
274		}
275		viewHolder.image.setVisibility(View.GONE);
276		viewHolder.messageBody.setVisibility(View.VISIBLE);
277		viewHolder.messageBody.setText(getContext().getString(
278				R.string.decryption_failed));
279		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
280		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
281		viewHolder.messageBody.setTextIsSelectable(false);
282	}
283
284	private void displayHeartMessage(final ViewHolder viewHolder, final String body) {
285		if (viewHolder.download_button != null) {
286			viewHolder.download_button.setVisibility(View.GONE);
287		}
288		viewHolder.image.setVisibility(View.GONE);
289		viewHolder.messageBody.setVisibility(View.VISIBLE);
290		viewHolder.messageBody.setIncludeFontPadding(false);
291		Spannable span = new SpannableString(body);
292		span.setSpan(new RelativeSizeSpan(4.0f), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
293		span.setSpan(new ForegroundColorSpan(activity.getWarningTextColor()), 0, body.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
294		viewHolder.messageBody.setText(span);
295	}
296
297	private void displayTextMessage(final ViewHolder viewHolder, final Message message, boolean darkBackground, int type) {
298		if (viewHolder.download_button != null) {
299			viewHolder.download_button.setVisibility(View.GONE);
300		}
301		viewHolder.image.setVisibility(View.GONE);
302		viewHolder.messageBody.setVisibility(View.VISIBLE);
303		viewHolder.messageBody.setIncludeFontPadding(true);
304		if (message.getBody() != null) {
305			final String nick = UIHelper.getMessageDisplayName(message);
306			SpannableStringBuilder body = message.getMergedBody();
307			boolean hasMeCommand = message.hasMeCommand();
308			if (hasMeCommand) {
309				body = body.replace(0, Message.ME_COMMAND.length(), nick + " ");
310			}
311			if (body.length() > Config.MAX_DISPLAY_MESSAGE_CHARS) {
312				body = new SpannableStringBuilder(body, 0, Config.MAX_DISPLAY_MESSAGE_CHARS);
313				body.append("\u2026");
314			}
315			Message.MergeSeparator[] mergeSeparators = body.getSpans(0, body.length(), Message.MergeSeparator.class);
316			for (Message.MergeSeparator mergeSeparator : mergeSeparators) {
317				int start = body.getSpanStart(mergeSeparator);
318				int end = body.getSpanEnd(mergeSeparator);
319				body.setSpan(new RelativeSizeSpan(0.3f), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
320			}
321			if (message.getType() != Message.TYPE_PRIVATE) {
322				if (hasMeCommand) {
323					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, nick.length(),
324							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
325				}
326			} else {
327				String privateMarker;
328				if (message.getStatus() <= Message.STATUS_RECEIVED) {
329					privateMarker = activity.getString(R.string.private_message);
330				} else {
331					final String to;
332					if (message.getCounterpart() != null) {
333						to = message.getCounterpart().getResourcepart();
334					} else {
335						to = "";
336					}
337					privateMarker = activity.getString(R.string.private_message_to, to);
338				}
339				body.insert(0, privateMarker);
340				int privateMarkerIndex = privateMarker.length();
341				body.insert(privateMarkerIndex, " ");
342				body.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground, false)),
343						0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
344				body.setSpan(new StyleSpan(Typeface.BOLD),
345						0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
346				if (hasMeCommand) {
347					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), privateMarkerIndex + 1,
348							privateMarkerIndex + 1 + nick.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
349				}
350			}
351			Linkify.addLinks(body, Linkify.WEB_URLS);
352			Linkify.addLinks(body, XMPP_PATTERN, "xmpp");
353			Linkify.addLinks(body, GeoHelper.GEO_URI, "geo");
354			viewHolder.messageBody.setAutoLinkMask(0);
355			viewHolder.messageBody.setText(body);
356			viewHolder.messageBody.setTextIsSelectable(true);
357			viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
358			listSelectionManager.onUpdate(viewHolder.messageBody, message);
359		} else {
360			viewHolder.messageBody.setText("");
361			viewHolder.messageBody.setTextIsSelectable(false);
362		}
363		viewHolder.messageBody.setTextColor(this.getMessageTextColor(darkBackground, true));
364		viewHolder.messageBody.setLinkTextColor(this.getMessageTextColor(darkBackground, true));
365		viewHolder.messageBody.setHighlightColor(activity.getResources().getColor(darkBackground ? (type == SENT || !mUseGreenBackground ? R.color.black26 : R.color.grey800) : R.color.grey500));
366		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
367	}
368
369	private void displayDownloadableMessage(ViewHolder viewHolder,
370			final Message message, String text) {
371		viewHolder.image.setVisibility(View.GONE);
372		viewHolder.messageBody.setVisibility(View.GONE);
373		viewHolder.download_button.setVisibility(View.VISIBLE);
374		viewHolder.download_button.setText(text);
375		viewHolder.download_button.setOnClickListener(new OnClickListener() {
376
377			@Override
378			public void onClick(View v) {
379				activity.startDownloadable(message);
380			}
381		});
382	}
383
384	private void displayOpenableMessage(ViewHolder viewHolder,final Message message) {
385		viewHolder.image.setVisibility(View.GONE);
386		viewHolder.messageBody.setVisibility(View.GONE);
387		viewHolder.download_button.setVisibility(View.VISIBLE);
388		viewHolder.download_button.setText(activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message)));
389		viewHolder.download_button.setOnClickListener(new OnClickListener() {
390
391			@Override
392			public void onClick(View v) {
393				openDownloadable(message);
394			}
395		});
396	}
397
398	private void displayLocationMessage(ViewHolder viewHolder, final Message message) {
399		viewHolder.image.setVisibility(View.GONE);
400		viewHolder.messageBody.setVisibility(View.GONE);
401		viewHolder.download_button.setVisibility(View.VISIBLE);
402		viewHolder.download_button.setText(R.string.show_location);
403		viewHolder.download_button.setOnClickListener(new OnClickListener() {
404
405			@Override
406			public void onClick(View v) {
407				showLocation(message);
408			}
409		});
410	}
411
412	private void displayImageMessage(ViewHolder viewHolder,
413			final Message message) {
414		if (viewHolder.download_button != null) {
415			viewHolder.download_button.setVisibility(View.GONE);
416		}
417		viewHolder.messageBody.setVisibility(View.GONE);
418		viewHolder.image.setVisibility(View.VISIBLE);
419		FileParams params = message.getFileParams();
420		double target = metrics.density * 288;
421		int scaledW;
422		int scaledH;
423		if (Math.max(params.height, params.width) * metrics.density <= target) {
424			scaledW = (int) (params.width * metrics.density);
425			scaledH = (int) (params.height * metrics.density);
426		} else if (Math.max(params.height,params.width) <= target) {
427			scaledW = params.width;
428			scaledH = params.height;
429		} else if (params.width <= params.height) {
430			scaledW = (int) (params.width / ((double) params.height / target));
431			scaledH = (int) target;
432		} else {
433			scaledW = (int) target;
434			scaledH = (int) (params.height / ((double) params.width / target));
435		}
436		LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(scaledW, scaledH);
437		layoutParams.setMargins(0, (int) (metrics.density * 4), 0, (int) (metrics.density * 4));
438		viewHolder.image.setLayoutParams(layoutParams);
439		activity.loadBitmap(message, viewHolder.image);
440		viewHolder.image.setOnClickListener(new OnClickListener() {
441
442			@Override
443			public void onClick(View v) {
444				openDownloadable(message);
445			}
446		});
447	}
448
449	private void loadMoreMessages(Conversation conversation) {
450		conversation.setLastClearHistory(0);
451		activity.xmppConnectionService.updateConversation(conversation);
452		conversation.setHasMessagesLeftOnServer(true);
453		conversation.setFirstMamReference(null);
454		long timestamp = conversation.getLastMessageTransmitted();
455		if (timestamp == 0) {
456			timestamp = System.currentTimeMillis();
457		}
458		activity.setMessagesLoaded();
459		activity.xmppConnectionService.getMessageArchiveService().query(conversation, 0, timestamp);
460		Toast.makeText(activity, R.string.fetching_history_from_server,Toast.LENGTH_LONG).show();
461	}
462
463	@Override
464	public View getView(int position, View view, ViewGroup parent) {
465		final Message message = getItem(position);
466		final boolean isInValidSession = message.isValidInSession();
467		final Conversation conversation = message.getConversation();
468		final Account account = conversation.getAccount();
469		final int type = getItemViewType(position);
470		ViewHolder viewHolder;
471		if (view == null) {
472			viewHolder = new ViewHolder();
473			switch (type) {
474				case SENT:
475					view = activity.getLayoutInflater().inflate(
476							R.layout.message_sent, parent, false);
477					viewHolder.message_box = (LinearLayout) view
478						.findViewById(R.id.message_box);
479					viewHolder.contact_picture = (ImageView) view
480						.findViewById(R.id.message_photo);
481					viewHolder.download_button = (Button) view
482						.findViewById(R.id.download_button);
483					viewHolder.indicator = (ImageView) view
484						.findViewById(R.id.security_indicator);
485					viewHolder.edit_indicator = (ImageView) view.findViewById(R.id.edit_indicator);
486					viewHolder.image = (ImageView) view
487						.findViewById(R.id.message_image);
488					viewHolder.messageBody = (TextView) view
489						.findViewById(R.id.message_body);
490					viewHolder.time = (TextView) view
491						.findViewById(R.id.message_time);
492					viewHolder.indicatorReceived = (ImageView) view
493						.findViewById(R.id.indicator_received);
494					break;
495				case RECEIVED:
496					view = activity.getLayoutInflater().inflate(
497							R.layout.message_received, parent, false);
498					viewHolder.message_box = (LinearLayout) view
499						.findViewById(R.id.message_box);
500					viewHolder.contact_picture = (ImageView) view
501						.findViewById(R.id.message_photo);
502					viewHolder.download_button = (Button) view
503						.findViewById(R.id.download_button);
504					viewHolder.indicator = (ImageView) view
505						.findViewById(R.id.security_indicator);
506					viewHolder.edit_indicator = (ImageView) view.findViewById(R.id.edit_indicator);
507					viewHolder.image = (ImageView) view
508						.findViewById(R.id.message_image);
509					viewHolder.messageBody = (TextView) view
510						.findViewById(R.id.message_body);
511					viewHolder.time = (TextView) view
512						.findViewById(R.id.message_time);
513					viewHolder.indicatorReceived = (ImageView) view
514						.findViewById(R.id.indicator_received);
515					viewHolder.encryption = (TextView) view.findViewById(R.id.message_encryption);
516					break;
517				case STATUS:
518					view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
519					viewHolder.contact_picture = (ImageView) view.findViewById(R.id.message_photo);
520					viewHolder.status_message = (TextView) view.findViewById(R.id.status_message);
521					viewHolder.load_more_messages = (Button) view.findViewById(R.id.load_more_messages);
522					break;
523				default:
524					viewHolder = null;
525					break;
526			}
527			if (viewHolder.messageBody != null) listSelectionManager.onCreate(viewHolder.messageBody);
528			view.setTag(viewHolder);
529		} else {
530			viewHolder = (ViewHolder) view.getTag();
531			if (viewHolder == null) {
532				return view;
533			}
534		}
535
536		boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
537
538		if (type == STATUS) {
539			if ("LOAD_MORE".equals(message.getBody())) {
540				viewHolder.status_message.setVisibility(View.GONE);
541				viewHolder.contact_picture.setVisibility(View.GONE);
542				viewHolder.load_more_messages.setVisibility(View.VISIBLE);
543				viewHolder.load_more_messages.setOnClickListener(new OnClickListener() {
544					@Override
545					public void onClick(View v) {
546						loadMoreMessages(message.getConversation());
547					}
548				});
549			} else {
550				viewHolder.status_message.setVisibility(View.VISIBLE);
551				viewHolder.contact_picture.setVisibility(View.VISIBLE);
552				viewHolder.load_more_messages.setVisibility(View.GONE);
553				if (conversation.getMode() == Conversation.MODE_SINGLE) {
554					viewHolder.contact_picture.setImageBitmap(activity
555							.avatarService().get(conversation.getContact(),
556									activity.getPixel(32)));
557					viewHolder.contact_picture.setAlpha(0.5f);
558				}
559				viewHolder.status_message.setText(message.getBody());
560			}
561			return view;
562		} else {
563			loadAvatar(message, viewHolder.contact_picture);
564		}
565
566		viewHolder.contact_picture
567			.setOnClickListener(new OnClickListener() {
568
569				@Override
570				public void onClick(View v) {
571					if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
572						MessageAdapter.this.mOnContactPictureClickedListener
573								.onContactPictureClicked(message);
574					}
575
576				}
577			});
578		viewHolder.contact_picture
579			.setOnLongClickListener(new OnLongClickListener() {
580
581				@Override
582				public boolean onLongClick(View v) {
583					if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
584						MessageAdapter.this.mOnContactPictureLongClickedListener
585								.onContactPictureLongClicked(message);
586						return true;
587					} else {
588						return false;
589					}
590				}
591			});
592
593		final Transferable transferable = message.getTransferable();
594		if (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING) {
595			if (transferable.getStatus() == Transferable.STATUS_OFFER) {
596				displayDownloadableMessage(viewHolder,message,activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)));
597			} else if (transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
598				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)));
599			} else {
600				displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first,darkBackground);
601			}
602		} else if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
603			displayImageMessage(viewHolder, message);
604		} else if (message.getType() == Message.TYPE_FILE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
605			if (message.getFileParams().width > 0) {
606				displayImageMessage(viewHolder,message);
607			} else {
608				displayOpenableMessage(viewHolder, message);
609			}
610		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
611			if (account.isPgpDecryptionServiceConnected()) {
612				if (!account.hasPendingPgpIntent(conversation)) {
613					displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
614				} else {
615					displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
616				}
617			} else {
618				displayInfoMessage(viewHolder,activity.getString(R.string.install_openkeychain),darkBackground);
619				if (viewHolder != null) {
620					viewHolder.message_box
621						.setOnClickListener(new OnClickListener() {
622
623							@Override
624							public void onClick(View v) {
625								activity.showInstallPgpDialog();
626							}
627						});
628				}
629			}
630		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
631			displayDecryptionFailed(viewHolder,darkBackground);
632		} else {
633			if (GeoHelper.isGeoUri(message.getBody())) {
634				displayLocationMessage(viewHolder,message);
635			} else if (message.bodyIsHeart()) {
636				displayHeartMessage(viewHolder, message.getBody().trim());
637			} else if (message.treatAsDownloadable() == Message.Decision.MUST) {
638				try {
639					URL url = new URL(message.getBody());
640					displayDownloadableMessage(viewHolder,
641							message,
642							activity.getString(R.string.check_x_filesize_on_host,
643									UIHelper.getFileDescriptionString(activity, message),
644									url.getHost()));
645				} catch (Exception e) {
646					displayDownloadableMessage(viewHolder,
647							message,
648							activity.getString(R.string.check_x_filesize,
649									UIHelper.getFileDescriptionString(activity, message)));
650				}
651			} else {
652				displayTextMessage(viewHolder, message, darkBackground, type);
653			}
654		}
655
656		if (type == RECEIVED) {
657			if(isInValidSession) {
658				int bubble;
659				if (!mUseGreenBackground) {
660					bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
661				} else {
662					bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
663				}
664				viewHolder.message_box.setBackgroundResource(bubble);
665				viewHolder.encryption.setVisibility(View.GONE);
666			} else {
667				viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
668				viewHolder.encryption.setVisibility(View.VISIBLE);
669				viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
670			}
671		}
672
673		displayStatus(viewHolder, message, type, darkBackground);
674
675		return view;
676	}
677
678	@Override
679	public void notifyDataSetChanged() {
680		listSelectionManager.onBeforeNotifyDataSetChanged();
681		super.notifyDataSetChanged();
682		listSelectionManager.onAfterNotifyDataSetChanged();
683	}
684
685	public void openDownloadable(Message message) {
686		DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
687		if (!file.exists()) {
688			Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
689			return;
690		}
691		Intent openIntent = new Intent(Intent.ACTION_VIEW);
692		String mime = file.getMimeType();
693		if (mime == null) {
694			mime = "*/*";
695		}
696		Uri uri;
697		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
698			try {
699				uri = FileProvider.getUriForFile(activity, FileBackend.CONVERSATIONS_FILE_PROVIDER, file);
700			} catch (IllegalArgumentException e) {
701				Toast.makeText(activity,activity.getString(R.string.no_permission_to_access_x,file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
702				return;
703			}
704			openIntent.setDataAndType(uri, mime);
705			openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
706		} else {
707			uri = Uri.fromFile(file);
708		}
709		openIntent.setDataAndType(uri, mime);
710		PackageManager manager = activity.getPackageManager();
711		List<ResolveInfo> info = manager.queryIntentActivities(openIntent, 0);
712		if (info.size() == 0) {
713			openIntent.setDataAndType(Uri.fromFile(file),"*/*");
714		}
715		try {
716			getContext().startActivity(openIntent);
717		}  catch (ActivityNotFoundException e) {
718			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
719		}
720	}
721
722	public void showLocation(Message message) {
723		for(Intent intent : GeoHelper.createGeoIntentsFromMessage(message)) {
724			if (intent.resolveActivity(getContext().getPackageManager()) != null) {
725				getContext().startActivity(intent);
726				return;
727			}
728		}
729		Toast.makeText(activity,R.string.no_application_found_to_display_location,Toast.LENGTH_SHORT).show();
730	}
731
732	public void updatePreferences() {
733		this.mIndicateReceived = activity.indicateReceived();
734		this.mUseGreenBackground = activity.useGreenBackground();
735	}
736
737	public TextView getMessageBody(View view) {
738		final Object tag = view.getTag();
739		if (tag instanceof ViewHolder) {
740			final ViewHolder viewHolder = (ViewHolder) tag;
741			return viewHolder.messageBody;
742		}
743		return null;
744	}
745
746	public interface OnContactPictureClicked {
747		void onContactPictureClicked(Message message);
748	}
749
750	public interface OnContactPictureLongClicked {
751		void onContactPictureLongClicked(Message message);
752	}
753
754	private static class ViewHolder {
755
756		protected LinearLayout message_box;
757		protected Button download_button;
758		protected ImageView image;
759		protected ImageView indicator;
760		protected ImageView indicatorReceived;
761		protected TextView time;
762		protected TextView messageBody;
763		protected ImageView contact_picture;
764		protected TextView status_message;
765		protected TextView encryption;
766		public Button load_more_messages;
767		public ImageView edit_indicator;
768	}
769
770	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
771		private final WeakReference<ImageView> imageViewReference;
772		private Message message = null;
773
774		public BitmapWorkerTask(ImageView imageView) {
775			imageViewReference = new WeakReference<>(imageView);
776		}
777
778		@Override
779		protected Bitmap doInBackground(Message... params) {
780			return activity.avatarService().get(params[0], activity.getPixel(48), isCancelled());
781		}
782
783		@Override
784		protected void onPostExecute(Bitmap bitmap) {
785			if (bitmap != null && !isCancelled()) {
786				final ImageView imageView = imageViewReference.get();
787				if (imageView != null) {
788					imageView.setImageBitmap(bitmap);
789					imageView.setBackgroundColor(0x00000000);
790				}
791			}
792		}
793	}
794
795	public void loadAvatar(Message message, ImageView imageView) {
796		if (cancelPotentialWork(message, imageView)) {
797			final Bitmap bm = activity.avatarService().get(message, activity.getPixel(48), true);
798			if (bm != null) {
799				cancelPotentialWork(message, imageView);
800				imageView.setImageBitmap(bm);
801				imageView.setBackgroundColor(0x00000000);
802			} else {
803				imageView.setBackgroundColor(UIHelper.getColorForName(UIHelper.getMessageDisplayName(message)));
804				imageView.setImageDrawable(null);
805				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
806				final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
807				imageView.setImageDrawable(asyncDrawable);
808				try {
809					task.execute(message);
810				} catch (final RejectedExecutionException ignored) {
811				}
812			}
813		}
814	}
815
816	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
817		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
818
819		if (bitmapWorkerTask != null) {
820			final Message oldMessage = bitmapWorkerTask.message;
821			if (oldMessage == null || message != oldMessage) {
822				bitmapWorkerTask.cancel(true);
823			} else {
824				return false;
825			}
826		}
827		return true;
828	}
829
830	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
831		if (imageView != null) {
832			final Drawable drawable = imageView.getDrawable();
833			if (drawable instanceof AsyncDrawable) {
834				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
835				return asyncDrawable.getBitmapWorkerTask();
836			}
837		}
838		return null;
839	}
840
841	static class AsyncDrawable extends BitmapDrawable {
842		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
843
844		public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
845			super(res, bitmap);
846			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
847		}
848
849		public BitmapWorkerTask getBitmapWorkerTask() {
850			return bitmapWorkerTaskReference.get();
851		}
852	}
853}