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.Color;
  10import android.graphics.Typeface;
  11import android.graphics.drawable.BitmapDrawable;
  12import android.graphics.drawable.Drawable;
  13import android.net.Uri;
  14import android.os.AsyncTask;
  15import android.support.annotation.ColorInt;
  16import android.support.v4.content.ContextCompat;
  17import android.text.Spannable;
  18import android.text.SpannableString;
  19import android.text.SpannableStringBuilder;
  20import android.text.Spanned;
  21import android.text.format.DateUtils;
  22import android.text.style.ForegroundColorSpan;
  23import android.text.style.RelativeSizeSpan;
  24import android.text.style.StyleSpan;
  25import android.text.util.Linkify;
  26import android.util.DisplayMetrics;
  27import android.util.Log;
  28import android.view.ActionMode;
  29import android.view.Menu;
  30import android.view.MenuItem;
  31import android.view.View;
  32import android.view.View.OnClickListener;
  33import android.view.View.OnLongClickListener;
  34import android.view.ViewGroup;
  35import android.view.WindowManager;
  36import android.widget.ArrayAdapter;
  37import android.widget.Button;
  38import android.widget.ImageView;
  39import android.widget.LinearLayout;
  40import android.widget.RelativeLayout;
  41import android.widget.TextView;
  42import android.widget.Toast;
  43
  44import java.lang.ref.WeakReference;
  45import java.net.URL;
  46import java.util.List;
  47import java.util.Locale;
  48import java.util.concurrent.RejectedExecutionException;
  49import java.util.regex.Matcher;
  50import java.util.regex.Pattern;
  51
  52import eu.siacs.conversations.Config;
  53import eu.siacs.conversations.R;
  54import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  55import eu.siacs.conversations.entities.Account;
  56import eu.siacs.conversations.entities.Conversation;
  57import eu.siacs.conversations.entities.DownloadableFile;
  58import eu.siacs.conversations.entities.Message;
  59import eu.siacs.conversations.entities.Message.FileParams;
  60import eu.siacs.conversations.entities.Transferable;
  61import eu.siacs.conversations.persistance.FileBackend;
  62import eu.siacs.conversations.services.MessageArchiveService;
  63import eu.siacs.conversations.services.NotificationService;
  64import eu.siacs.conversations.ui.ConversationActivity;
  65import eu.siacs.conversations.ui.service.AudioPlayer;
  66import eu.siacs.conversations.ui.text.DividerSpan;
  67import eu.siacs.conversations.ui.text.FixedURLSpan;
  68import eu.siacs.conversations.ui.text.QuoteSpan;
  69import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
  70import eu.siacs.conversations.ui.widget.CopyTextView;
  71import eu.siacs.conversations.ui.widget.ListSelectionManager;
  72import eu.siacs.conversations.utils.CryptoHelper;
  73import eu.siacs.conversations.utils.EmojiWrapper;
  74import eu.siacs.conversations.utils.Emoticons;
  75import eu.siacs.conversations.utils.GeoHelper;
  76import eu.siacs.conversations.utils.Patterns;
  77import eu.siacs.conversations.utils.StylingHelper;
  78import eu.siacs.conversations.utils.UIHelper;
  79import eu.siacs.conversations.utils.XmppUri;
  80import eu.siacs.conversations.xmpp.mam.MamReference;
  81
  82public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextView.CopyHandler {
  83
  84	private static final int SENT = 0;
  85	private static final int RECEIVED = 1;
  86	private static final int STATUS = 2;
  87	private static final int DATE_SEPARATOR = 3;
  88
  89	public static final String DATE_SEPARATOR_BODY = "DATE_SEPARATOR";
  90
  91	private static final Pattern XMPP_PATTERN = Pattern
  92			.compile("xmpp\\:(?:(?:["
  93					+ Patterns.GOOD_IRI_CHAR
  94					+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
  95					+ "|(?:\\%[a-fA-F0-9]{2}))+");
  96
  97	private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = new Linkify.TransformFilter() {
  98		@Override
  99		public String transformUrl(Matcher matcher, String url) {
 100			if (url == null) {
 101				return null;
 102			}
 103			final String lcUrl = url.toLowerCase(Locale.US);
 104			if (lcUrl.startsWith("http://") || lcUrl.startsWith("https://")) {
 105				return url;
 106			} else {
 107				return "http://"+url;
 108			}
 109		}
 110	};
 111	private static final Linkify.MatchFilter WEBURL_MATCH_FILTER = new Linkify.MatchFilter() {
 112		@Override
 113		public boolean acceptMatch(CharSequence cs, int start, int end) {
 114			return start < 1 || (cs.charAt(start-1) != '@' && cs.charAt(start-1) != '.' && !cs.subSequence(Math.max(0,start - 3),start).equals("://"));
 115		}
 116	};
 117
 118	private static final Linkify.MatchFilter XMPPURI_MATCH_FILTER = new Linkify.MatchFilter() {
 119		@Override
 120		public boolean acceptMatch(CharSequence s, int start, int end) {
 121			XmppUri uri = new XmppUri(s.subSequence(start,end).toString());
 122			return uri.isJidValid();
 123		}
 124	};
 125
 126	private final ConversationActivity activity;
 127
 128	private DisplayMetrics metrics;
 129
 130	private OnContactPictureClicked mOnContactPictureClickedListener;
 131	private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
 132
 133	private boolean mIndicateReceived = false;
 134	private boolean mUseGreenBackground = false;
 135
 136	private OnQuoteListener onQuoteListener;
 137
 138	private final ListSelectionManager listSelectionManager = new ListSelectionManager();
 139
 140	private final AudioPlayer audioPlayer;
 141
 142	public MessageAdapter(ConversationActivity activity, List<Message> messages) {
 143		super(activity, 0, messages);
 144		this.audioPlayer = new AudioPlayer(this);
 145		this.activity = activity;
 146		metrics = getContext().getResources().getDisplayMetrics();
 147		updatePreferences();
 148	}
 149
 150	public void flagScreenOn() {
 151		activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 152	}
 153
 154	public void flagScreenOff() {
 155		activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 156	}
 157
 158	public void setOnContactPictureClicked(OnContactPictureClicked listener) {
 159		this.mOnContactPictureClickedListener = listener;
 160	}
 161
 162	public void setOnContactPictureLongClicked(
 163			OnContactPictureLongClicked listener) {
 164		this.mOnContactPictureLongClickedListener = listener;
 165			}
 166
 167	public void setOnQuoteListener(OnQuoteListener listener) {
 168		this.onQuoteListener = listener;
 169	}
 170
 171	@Override
 172	public int getViewTypeCount() {
 173		return 4;
 174	}
 175
 176	public int getItemViewType(Message message) {
 177		if (message.getType() == Message.TYPE_STATUS) {
 178			if (DATE_SEPARATOR_BODY.equals(message.getBody())) {
 179				return DATE_SEPARATOR;
 180			} else {
 181				return STATUS;
 182			}
 183		} else if (message.getStatus() <= Message.STATUS_RECEIVED) {
 184			return RECEIVED;
 185		}
 186
 187		return SENT;
 188	}
 189
 190	@Override
 191	public int getItemViewType(int position) {
 192		return this.getItemViewType(getItem(position));
 193	}
 194
 195	public int getMessageTextColor(boolean onDark, boolean primary) {
 196		if (onDark) {
 197			return ContextCompat.getColor(activity, primary ? R.color.white : R.color.white70);
 198		} else {
 199			return ContextCompat.getColor(activity, primary ? R.color.black87 : R.color.black54);
 200		}
 201	}
 202
 203	private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
 204		String filesize = null;
 205		String info = null;
 206		boolean error = false;
 207		if (viewHolder.indicatorReceived != null) {
 208			viewHolder.indicatorReceived.setVisibility(View.GONE);
 209		}
 210
 211		if (viewHolder.edit_indicator != null) {
 212			if (message.edited()) {
 213				viewHolder.edit_indicator.setVisibility(View.VISIBLE);
 214				viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
 215				viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
 216			} else {
 217				viewHolder.edit_indicator.setVisibility(View.GONE);
 218			}
 219		}
 220		boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
 221			&& message.getMergedStatus() <= Message.STATUS_RECEIVED;
 222		if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE || message.getTransferable() != null) {
 223			FileParams params = message.getFileParams();
 224			if (params.size > (1.5 * 1024 * 1024)) {
 225				filesize = Math.round(params.size * 1f/ (1024 * 1024))+ " MiB";
 226			} else if (params.size >= 1024) {
 227				filesize = Math.round(params.size * 1f/ 1024) + " KiB";
 228			} else if (params.size > 0){
 229				filesize = params.size + " B";
 230			}
 231			if (message.getTransferable() != null && message.getTransferable().getStatus() == Transferable.STATUS_FAILED) {
 232				error = true;
 233			}
 234		}
 235		switch (message.getMergedStatus()) {
 236			case Message.STATUS_WAITING:
 237				info = getContext().getString(R.string.waiting);
 238				break;
 239			case Message.STATUS_UNSEND:
 240				Transferable d = message.getTransferable();
 241				if (d!=null) {
 242					info = getContext().getString(R.string.sending_file,d.getProgress());
 243				} else {
 244					info = getContext().getString(R.string.sending);
 245				}
 246				break;
 247			case Message.STATUS_OFFERED:
 248				info = getContext().getString(R.string.offering);
 249				break;
 250			case Message.STATUS_SEND_RECEIVED:
 251				if (mIndicateReceived) {
 252					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
 253				}
 254				break;
 255			case Message.STATUS_SEND_DISPLAYED:
 256				if (mIndicateReceived) {
 257					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
 258				}
 259				break;
 260			case Message.STATUS_SEND_FAILED:
 261				info = getContext().getString(R.string.send_failed);
 262				error = true;
 263				break;
 264			default:
 265				if (multiReceived) {
 266					info = UIHelper.getMessageDisplayName(message);
 267				}
 268				break;
 269		}
 270		if (error && type == SENT) {
 271			viewHolder.time.setTextColor(activity.getWarningTextColor());
 272		} else {
 273			viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground,false));
 274		}
 275		if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 276			viewHolder.indicator.setVisibility(View.GONE);
 277		} else {
 278			boolean verified = false;
 279			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
 280				final FingerprintStatus status = message.getConversation()
 281						.getAccount().getAxolotlService().getFingerprintTrust(
 282								message.getFingerprint());
 283				if (status != null && status.isVerified()) {
 284					verified = true;
 285				}
 286			}
 287			if (verified) {
 288				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_verified_user_white_18dp : R.drawable.ic_verified_user_black_18dp);
 289			} else {
 290				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
 291			}
 292			if (darkBackground) {
 293				viewHolder.indicator.setAlpha(0.7f);
 294			} else {
 295				viewHolder.indicator.setAlpha(0.57f);
 296			}
 297			viewHolder.indicator.setVisibility(View.VISIBLE);
 298		}
 299
 300		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getMergedTimeSent());
 301		if (message.getStatus() <= Message.STATUS_RECEIVED) {
 302			if ((filesize != null) && (info != null)) {
 303				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize +" \u00B7 " + info);
 304			} else if ((filesize == null) && (info != null)) {
 305				viewHolder.time.setText(formatedTime + " \u00B7 " + info);
 306			} else if ((filesize != null) && (info == null)) {
 307				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize);
 308			} else {
 309				viewHolder.time.setText(formatedTime);
 310			}
 311		} else {
 312			if ((filesize != null) && (info != null)) {
 313				viewHolder.time.setText(filesize + " \u00B7 " + info);
 314			} else if ((filesize == null) && (info != null)) {
 315				if (error) {
 316					viewHolder.time.setText(info + " \u00B7 " + formatedTime);
 317				} else {
 318					viewHolder.time.setText(info);
 319				}
 320			} else if ((filesize != null) && (info == null)) {
 321				viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
 322			} else {
 323				viewHolder.time.setText(formatedTime);
 324			}
 325		}
 326	}
 327
 328	private void displayInfoMessage(ViewHolder viewHolder, String text, boolean darkBackground) {
 329		viewHolder.download_button.setVisibility(View.GONE);
 330		viewHolder.audioPlayer.setVisibility(View.GONE);
 331		viewHolder.image.setVisibility(View.GONE);
 332		viewHolder.messageBody.setVisibility(View.VISIBLE);
 333		viewHolder.messageBody.setText(text);
 334		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
 335		viewHolder.messageBody.setTypeface(null, Typeface.ITALIC);
 336		viewHolder.messageBody.setTextIsSelectable(false);
 337	}
 338
 339	private void displayDecryptionFailed(ViewHolder viewHolder, boolean darkBackground) {
 340		viewHolder.download_button.setVisibility(View.GONE);
 341		viewHolder.image.setVisibility(View.GONE);
 342		viewHolder.audioPlayer.setVisibility(View.GONE);
 343		viewHolder.messageBody.setVisibility(View.VISIBLE);
 344		viewHolder.messageBody.setText(getContext().getString(
 345				R.string.decryption_failed));
 346		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
 347		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
 348		viewHolder.messageBody.setTextIsSelectable(false);
 349	}
 350
 351	private void displayEmojiMessage(final ViewHolder viewHolder, final String body) {
 352		viewHolder.download_button.setVisibility(View.GONE);
 353		viewHolder.audioPlayer.setVisibility(View.GONE);
 354		viewHolder.image.setVisibility(View.GONE);
 355		viewHolder.messageBody.setVisibility(View.VISIBLE);
 356		Spannable span = new SpannableString(body);
 357		float size = Emoticons.isEmoji(body) ? 3.0f : 2.0f;
 358		span.setSpan(new RelativeSizeSpan(size), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 359		viewHolder.messageBody.setText(EmojiWrapper.transform(span));
 360	}
 361
 362	private int applyQuoteSpan(SpannableStringBuilder body, int start, int end, boolean darkBackground) {
 363		if (start > 1 && !"\n\n".equals(body.subSequence(start - 2, start).toString())) {
 364			body.insert(start++, "\n");
 365			body.setSpan(new DividerSpan(false), start - 2, start, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 366			end++;
 367		}
 368		if (end < body.length() - 1 && !"\n\n".equals(body.subSequence(end, end + 2).toString())) {
 369			body.insert(end, "\n");
 370			body.setSpan(new DividerSpan(false), end, end + 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 371		}
 372		int color = darkBackground ? this.getMessageTextColor(darkBackground, false)
 373				: ContextCompat.getColor(activity, R.color.bubble);
 374		DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
 375		body.setSpan(new QuoteSpan(color, metrics), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 376		return 0;
 377	}
 378
 379	/**
 380	 * Applies QuoteSpan to group of lines which starts with > or » characters.
 381	 * Appends likebreaks and applies DividerSpan to them to show a padding between quote and text.
 382	 */
 383	private boolean handleTextQuotes(SpannableStringBuilder body, boolean darkBackground) {
 384		boolean startsWithQuote = false;
 385		char previous = '\n';
 386		int lineStart = -1;
 387		int lineTextStart = -1;
 388		int quoteStart = -1;
 389		for (int i = 0; i <= body.length(); i++) {
 390			char current = body.length() > i ? body.charAt(i) : '\n';
 391			if (lineStart == -1) {
 392				if (previous == '\n') {
 393					if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body,i))
 394							|| current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body,i)) {
 395						// Line start with quote
 396						lineStart = i;
 397						if (quoteStart == -1) quoteStart = i;
 398						if (i == 0) startsWithQuote = true;
 399					} else if (quoteStart >= 0) {
 400						// Line start without quote, apply spans there
 401						applyQuoteSpan(body, quoteStart, i - 1, darkBackground);
 402						quoteStart = -1;
 403					}
 404				}
 405			} else {
 406				// Remove extra spaces between > and first character in the line
 407				// > character will be removed too
 408				if (current != ' ' && lineTextStart == -1) {
 409					lineTextStart = i;
 410				}
 411				if (current == '\n') {
 412					body.delete(lineStart, lineTextStart);
 413					i -= lineTextStart - lineStart;
 414					if (i == lineStart) {
 415						// Avoid empty lines because span over empty line can be hidden
 416						body.insert(i++, " ");
 417					}
 418					lineStart = -1;
 419					lineTextStart = -1;
 420				}
 421			}
 422			previous = current;
 423		}
 424		if (quoteStart >= 0) {
 425			// Apply spans to finishing open quote
 426			applyQuoteSpan(body, quoteStart, body.length(), darkBackground);
 427		}
 428		return startsWithQuote;
 429	}
 430
 431	private void displayTextMessage(final ViewHolder viewHolder, final Message message, boolean darkBackground, int type) {
 432		viewHolder.download_button.setVisibility(View.GONE);
 433		viewHolder.image.setVisibility(View.GONE);
 434		viewHolder.audioPlayer.setVisibility(View.GONE);
 435		viewHolder.messageBody.setVisibility(View.VISIBLE);
 436
 437		viewHolder.messageBody.setTextColor(this.getMessageTextColor(darkBackground, true));
 438		viewHolder.messageBody.setLinkTextColor(this.getMessageTextColor(darkBackground, true));
 439		viewHolder.messageBody.setHighlightColor(ContextCompat.getColor(activity, darkBackground
 440				? (type == SENT || !mUseGreenBackground ? R.color.black26 : R.color.grey800) : R.color.grey500));
 441		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
 442
 443		if (message.getBody() != null) {
 444			final String nick = UIHelper.getMessageDisplayName(message);
 445			SpannableStringBuilder body = message.getMergedBody();
 446			boolean hasMeCommand = message.hasMeCommand();
 447			if (hasMeCommand) {
 448				body = body.replace(0, Message.ME_COMMAND.length(), nick + " ");
 449			}
 450			if (body.length() > Config.MAX_DISPLAY_MESSAGE_CHARS) {
 451				body = new SpannableStringBuilder(body, 0, Config.MAX_DISPLAY_MESSAGE_CHARS);
 452				body.append("\u2026");
 453			}
 454			Message.MergeSeparator[] mergeSeparators = body.getSpans(0, body.length(), Message.MergeSeparator.class);
 455			for (Message.MergeSeparator mergeSeparator : mergeSeparators) {
 456				int start = body.getSpanStart(mergeSeparator);
 457				int end = body.getSpanEnd(mergeSeparator);
 458				body.setSpan(new DividerSpan(true), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 459			}
 460			boolean startsWithQuote = handleTextQuotes(body, darkBackground);
 461			if (message.getType() != Message.TYPE_PRIVATE) {
 462				if (hasMeCommand) {
 463					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, nick.length(),
 464							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 465				}
 466			} else {
 467				String privateMarker;
 468				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 469					privateMarker = activity.getString(R.string.private_message);
 470				} else {
 471					final String to;
 472					if (message.getCounterpart() != null) {
 473						to = message.getCounterpart().getResourcepart();
 474					} else {
 475						to = "";
 476					}
 477					privateMarker = activity.getString(R.string.private_message_to, to);
 478				}
 479				body.insert(0, privateMarker);
 480				int privateMarkerIndex = privateMarker.length();
 481				if (startsWithQuote) {
 482					body.insert(privateMarkerIndex, "\n\n");
 483					body.setSpan(new DividerSpan(false), privateMarkerIndex, privateMarkerIndex + 2,
 484							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 485				} else {
 486					body.insert(privateMarkerIndex, " ");
 487				}
 488				body.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground, false)), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 489				body.setSpan(new StyleSpan(Typeface.BOLD), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 490				if (hasMeCommand) {
 491					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), privateMarkerIndex + 1,
 492							privateMarkerIndex + 1 + nick.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 493				}
 494			}
 495			if (message.getConversation().getMode() == Conversation.MODE_MULTI && message.getStatus() == Message.STATUS_RECEIVED) {
 496				Pattern pattern = NotificationService.generateNickHighlightPattern(message.getConversation().getMucOptions().getActualNick());
 497				Matcher matcher = pattern.matcher(body);
 498				while(matcher.find()) {
 499					body.setSpan(new StyleSpan(Typeface.BOLD), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 500				}
 501			}
 502			Matcher matcher = Emoticons.generatePattern(body).matcher(body);
 503			while(matcher.find()) {
 504				if (matcher.start() < matcher.end()) {
 505					body.setSpan(new RelativeSizeSpan(1.2f), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 506				}
 507			}
 508
 509			StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
 510
 511			Linkify.addLinks(body, XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null);
 512			Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER);
 513			Linkify.addLinks(body, GeoHelper.GEO_URI, "geo");
 514			FixedURLSpan.fix(body);
 515			viewHolder.messageBody.setAutoLinkMask(0);
 516			viewHolder.messageBody.setText(EmojiWrapper.transform(body));
 517			viewHolder.messageBody.setTextIsSelectable(true);
 518			viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
 519			listSelectionManager.onUpdate(viewHolder.messageBody, message);
 520		} else {
 521			viewHolder.messageBody.setText("");
 522			viewHolder.messageBody.setTextIsSelectable(false);
 523		}
 524	}
 525
 526	private void displayDownloadableMessage(ViewHolder viewHolder, final Message message, String text) {
 527		viewHolder.image.setVisibility(View.GONE);
 528		viewHolder.messageBody.setVisibility(View.GONE);
 529		viewHolder.audioPlayer.setVisibility(View.GONE);
 530		viewHolder.download_button.setVisibility(View.VISIBLE);
 531		viewHolder.download_button.setText(text);
 532		viewHolder.download_button.setOnClickListener(new OnClickListener() {
 533
 534			@Override
 535			public void onClick(View v) {
 536				activity.startDownloadable(message);
 537			}
 538		});
 539	}
 540
 541	private void displayOpenableMessage(ViewHolder viewHolder,final Message message) {
 542		viewHolder.image.setVisibility(View.GONE);
 543		viewHolder.messageBody.setVisibility(View.GONE);
 544		viewHolder.audioPlayer.setVisibility(View.GONE);
 545		viewHolder.download_button.setVisibility(View.VISIBLE);
 546		viewHolder.download_button.setText(activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message)));
 547		viewHolder.download_button.setOnClickListener(new OnClickListener() {
 548
 549			@Override
 550			public void onClick(View v) {
 551				openDownloadable(message);
 552			}
 553		});
 554	}
 555
 556	private void displayLocationMessage(ViewHolder viewHolder, final Message message) {
 557		viewHolder.image.setVisibility(View.GONE);
 558		viewHolder.messageBody.setVisibility(View.GONE);
 559		viewHolder.audioPlayer.setVisibility(View.GONE);
 560		viewHolder.download_button.setVisibility(View.VISIBLE);
 561		viewHolder.download_button.setText(R.string.show_location);
 562		viewHolder.download_button.setOnClickListener(new OnClickListener() {
 563
 564			@Override
 565			public void onClick(View v) {
 566				showLocation(message);
 567			}
 568		});
 569	}
 570
 571	private void displayAudioMessage(ViewHolder viewHolder, Message message, boolean darkBackground) {
 572		viewHolder.image.setVisibility(View.GONE);
 573		viewHolder.messageBody.setVisibility(View.GONE);
 574		viewHolder.download_button.setVisibility(View.GONE);
 575		final RelativeLayout audioPlayer = viewHolder.audioPlayer;
 576		audioPlayer.setVisibility(View.VISIBLE);
 577		AudioPlayer.ViewHolder.get(audioPlayer).setDarkBackground(darkBackground);
 578		this.audioPlayer.init(audioPlayer, message);
 579	}
 580
 581
 582	private void displayImageMessage(ViewHolder viewHolder, final Message message) {
 583		viewHolder.download_button.setVisibility(View.GONE);
 584		viewHolder.messageBody.setVisibility(View.GONE);
 585		viewHolder.audioPlayer.setVisibility(View.GONE);
 586		viewHolder.image.setVisibility(View.VISIBLE);
 587		FileParams params = message.getFileParams();
 588		double target = metrics.density * 288;
 589		int scaledW;
 590		int scaledH;
 591		if (Math.max(params.height, params.width) * metrics.density <= target) {
 592			scaledW = (int) (params.width * metrics.density);
 593			scaledH = (int) (params.height * metrics.density);
 594		} else if (Math.max(params.height,params.width) <= target) {
 595			scaledW = params.width;
 596			scaledH = params.height;
 597		} else if (params.width <= params.height) {
 598			scaledW = (int) (params.width / ((double) params.height / target));
 599			scaledH = (int) target;
 600		} else {
 601			scaledW = (int) target;
 602			scaledH = (int) (params.height / ((double) params.width / target));
 603		}
 604		LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(scaledW, scaledH);
 605		layoutParams.setMargins(0, (int) (metrics.density * 4), 0, (int) (metrics.density * 4));
 606		viewHolder.image.setLayoutParams(layoutParams);
 607		activity.loadBitmap(message, viewHolder.image);
 608		viewHolder.image.setOnClickListener(new OnClickListener() {
 609
 610			@Override
 611			public void onClick(View v) {
 612				openDownloadable(message);
 613			}
 614		});
 615	}
 616
 617	private void loadMoreMessages(Conversation conversation) {
 618		conversation.setLastClearHistory(0,null);
 619		activity.xmppConnectionService.updateConversation(conversation);
 620		conversation.setHasMessagesLeftOnServer(true);
 621		conversation.setFirstMamReference(null);
 622		long timestamp = conversation.getLastMessageTransmitted().getTimestamp();
 623		if (timestamp == 0) {
 624			timestamp = System.currentTimeMillis();
 625		}
 626		conversation.messagesLoaded.set(true);
 627		MessageArchiveService.Query query = activity.xmppConnectionService.getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
 628		if (query != null) {
 629			Toast.makeText(activity, R.string.fetching_history_from_server, Toast.LENGTH_LONG).show();
 630		} else {
 631			Toast.makeText(activity,R.string.not_fetching_history_retention_period, Toast.LENGTH_SHORT).show();
 632		}
 633	}
 634
 635	@Override
 636	public View getView(int position, View view, ViewGroup parent) {
 637		final Message message = getItem(position);
 638		final boolean omemoEncryption = message.getEncryption() == Message.ENCRYPTION_AXOLOTL;
 639		final boolean isInValidSession = message.isValidInSession() && (!omemoEncryption || message.isTrusted());
 640		final Conversation conversation = message.getConversation();
 641		final Account account = conversation.getAccount();
 642		final int type = getItemViewType(position);
 643		ViewHolder viewHolder;
 644		if (view == null) {
 645			viewHolder = new ViewHolder();
 646			switch (type) {
 647				case DATE_SEPARATOR:
 648					view = activity.getLayoutInflater().inflate(R.layout.message_date_bubble, parent, false);
 649					viewHolder.status_message = view.findViewById(R.id.message_body);
 650					viewHolder.message_box = view.findViewById(R.id.message_box);
 651					break;
 652				case SENT:
 653					view = activity.getLayoutInflater().inflate(R.layout.message_sent, parent, false);
 654					viewHolder.message_box = view.findViewById(R.id.message_box);
 655					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 656					viewHolder.download_button = view.findViewById(R.id.download_button);
 657					viewHolder.indicator = view.findViewById(R.id.security_indicator);
 658					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 659					viewHolder.image = view.findViewById(R.id.message_image);
 660					viewHolder.messageBody = view.findViewById(R.id.message_body);
 661					viewHolder.time = view.findViewById(R.id.message_time);
 662					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 663					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 664					break;
 665				case RECEIVED:
 666					view = activity.getLayoutInflater().inflate(R.layout.message_received, parent, false);
 667					viewHolder.message_box = view.findViewById(R.id.message_box);
 668					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 669					viewHolder.download_button = view.findViewById(R.id.download_button);
 670					viewHolder.indicator = view.findViewById(R.id.security_indicator);
 671					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 672					viewHolder.image = view.findViewById(R.id.message_image);
 673					viewHolder.messageBody = view.findViewById(R.id.message_body);
 674					viewHolder.time = view.findViewById(R.id.message_time);
 675					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 676					viewHolder.encryption = view.findViewById(R.id.message_encryption);
 677					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 678					break;
 679				case STATUS:
 680					view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
 681					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 682					viewHolder.status_message = view.findViewById(R.id.status_message);
 683					viewHolder.load_more_messages = view.findViewById(R.id.load_more_messages);
 684					break;
 685				default:
 686					throw new AssertionError("Unknown view type");
 687			}
 688			if (viewHolder.messageBody != null) {
 689				listSelectionManager.onCreate(viewHolder.messageBody,
 690						new MessageBodyActionModeCallback(viewHolder.messageBody));
 691				viewHolder.messageBody.setCopyHandler(this);
 692			}
 693			view.setTag(viewHolder);
 694		} else {
 695			viewHolder = (ViewHolder) view.getTag();
 696			if (viewHolder == null) {
 697				return view;
 698			}
 699		}
 700
 701		boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
 702
 703		if (type == DATE_SEPARATOR) {
 704			if (UIHelper.today(message.getTimeSent())) {
 705				viewHolder.status_message.setText(R.string.today);
 706			} else if (UIHelper.yesterday(message.getTimeSent())) {
 707				viewHolder.status_message.setText(R.string.yesterday);
 708			} else {
 709				viewHolder.status_message.setText(DateUtils.formatDateTime(activity,message.getTimeSent(),DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR));
 710			}
 711			viewHolder.message_box.setBackgroundResource(activity.isDarkTheme() ? R.drawable.date_bubble_grey : R.drawable.date_bubble_white);
 712			viewHolder.status_message.setTextColor(activity.getSecondaryTextColor());
 713			return view;
 714		} else if (type == STATUS) {
 715			if ("LOAD_MORE".equals(message.getBody())) {
 716				viewHolder.status_message.setVisibility(View.GONE);
 717				viewHolder.contact_picture.setVisibility(View.GONE);
 718				viewHolder.load_more_messages.setVisibility(View.VISIBLE);
 719				viewHolder.load_more_messages.setOnClickListener(new OnClickListener() {
 720					@Override
 721					public void onClick(View v) {
 722						loadMoreMessages(message.getConversation());
 723					}
 724				});
 725			} else {
 726				viewHolder.status_message.setVisibility(View.VISIBLE);
 727				viewHolder.load_more_messages.setVisibility(View.GONE);
 728				viewHolder.status_message.setText(message.getBody());
 729				boolean showAvatar;
 730				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 731					showAvatar = true;
 732					loadAvatar(message,viewHolder.contact_picture,activity.getPixel(32));
 733				} else if (message.getCounterpart() != null || message.getTrueCounterpart() != null || (message.getCounterparts() != null && message.getCounterparts().size() > 0)) {
 734					showAvatar = true;
 735					loadAvatar(message,viewHolder.contact_picture,activity.getPixel(32));
 736				} else {
 737					showAvatar = false;
 738				}
 739				if (showAvatar) {
 740					viewHolder.contact_picture.setAlpha(0.5f);
 741					viewHolder.contact_picture.setVisibility(View.VISIBLE);
 742				} else {
 743					viewHolder.contact_picture.setVisibility(View.GONE);
 744				}
 745			}
 746			return view;
 747		} else {
 748			loadAvatar(message, viewHolder.contact_picture,activity.getPixel(48));
 749		}
 750
 751		viewHolder.contact_picture
 752			.setOnClickListener(new OnClickListener() {
 753
 754				@Override
 755				public void onClick(View v) {
 756					if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
 757						MessageAdapter.this.mOnContactPictureClickedListener
 758								.onContactPictureClicked(message);
 759					}
 760
 761				}
 762			});
 763		viewHolder.contact_picture
 764			.setOnLongClickListener(new OnLongClickListener() {
 765
 766				@Override
 767				public boolean onLongClick(View v) {
 768					if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
 769						MessageAdapter.this.mOnContactPictureLongClickedListener
 770								.onContactPictureLongClicked(message);
 771						return true;
 772					} else {
 773						return false;
 774					}
 775				}
 776			});
 777
 778		final Transferable transferable = message.getTransferable();
 779		if (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING) {
 780			if (transferable.getStatus() == Transferable.STATUS_OFFER) {
 781				displayDownloadableMessage(viewHolder,message,activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)));
 782			} else if (transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
 783				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)));
 784			} else {
 785				displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first,darkBackground);
 786			}
 787		} else if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
 788			displayImageMessage(viewHolder, message);
 789		} else if (message.getType() == Message.TYPE_FILE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
 790			if (message.getFileParams().width > 0 && message.getFileParams().height > 0) {
 791				displayImageMessage(viewHolder, message);
 792			} else if (message.getFileParams().runtime > 0) {
 793				displayAudioMessage(viewHolder, message, darkBackground);
 794			} else {
 795				displayOpenableMessage(viewHolder, message);
 796			}
 797		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 798			if (account.isPgpDecryptionServiceConnected()) {
 799				if (!account.hasPendingPgpIntent(conversation)) {
 800					displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
 801				} else {
 802					displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
 803				}
 804			} else {
 805				displayInfoMessage(viewHolder,activity.getString(R.string.install_openkeychain),darkBackground);
 806				viewHolder.message_box.setOnClickListener(new OnClickListener() {
 807
 808							@Override
 809							public void onClick(View v) {
 810								activity.showInstallPgpDialog();
 811							}
 812						});
 813			}
 814		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 815			displayDecryptionFailed(viewHolder,darkBackground);
 816		} else {
 817			if (message.isGeoUri()) {
 818				displayLocationMessage(viewHolder,message);
 819			} else if (message.bodyIsOnlyEmojis() && message.getType() != Message.TYPE_PRIVATE) {
 820				displayEmojiMessage(viewHolder, message.getBody().trim());
 821			} else if (message.treatAsDownloadable()) {
 822				try {
 823					URL url = new URL(message.getBody());
 824					displayDownloadableMessage(viewHolder,
 825							message,
 826							activity.getString(R.string.check_x_filesize_on_host,
 827									UIHelper.getFileDescriptionString(activity, message),
 828									url.getHost()));
 829				} catch (Exception e) {
 830					displayDownloadableMessage(viewHolder,
 831							message,
 832							activity.getString(R.string.check_x_filesize,
 833									UIHelper.getFileDescriptionString(activity, message)));
 834				}
 835			} else {
 836				displayTextMessage(viewHolder, message, darkBackground, type);
 837			}
 838		}
 839
 840		if (type == RECEIVED) {
 841			if(isInValidSession) {
 842				int bubble;
 843				if (!mUseGreenBackground) {
 844					bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
 845				} else {
 846					bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
 847				}
 848				viewHolder.message_box.setBackgroundResource(bubble);
 849				viewHolder.encryption.setVisibility(View.GONE);
 850			} else {
 851				viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
 852				viewHolder.encryption.setVisibility(View.VISIBLE);
 853				if (omemoEncryption && !message.isTrusted()) {
 854					viewHolder.encryption.setText(R.string.not_trusted);
 855				} else {
 856					viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
 857				}
 858			}
 859		}
 860
 861		displayStatus(viewHolder, message, type, darkBackground);
 862
 863		return view;
 864	}
 865
 866	@Override
 867	public void notifyDataSetChanged() {
 868		listSelectionManager.onBeforeNotifyDataSetChanged();
 869		super.notifyDataSetChanged();
 870		listSelectionManager.onAfterNotifyDataSetChanged();
 871	}
 872
 873	private String transformText(CharSequence text, int start, int end, boolean forCopy) {
 874		SpannableStringBuilder builder = new SpannableStringBuilder(text);
 875		Object copySpan = new Object();
 876		builder.setSpan(copySpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 877		DividerSpan[] dividerSpans = builder.getSpans(0, builder.length(), DividerSpan.class);
 878		for (DividerSpan dividerSpan : dividerSpans) {
 879			builder.replace(builder.getSpanStart(dividerSpan), builder.getSpanEnd(dividerSpan),
 880					dividerSpan.isLarge() ? "\n\n" : "\n");
 881		}
 882		start = builder.getSpanStart(copySpan);
 883		end = builder.getSpanEnd(copySpan);
 884		if (start == -1 || end == -1) return "";
 885		builder = new SpannableStringBuilder(builder, start, end);
 886		if (forCopy) {
 887			QuoteSpan[] quoteSpans = builder.getSpans(0, builder.length(), QuoteSpan.class);
 888			for (QuoteSpan quoteSpan : quoteSpans) {
 889				builder.insert(builder.getSpanStart(quoteSpan), "> ");
 890			}
 891		}
 892		return builder.toString();
 893	}
 894
 895	@Override
 896	public String transformTextForCopy(CharSequence text, int start, int end) {
 897		if (text instanceof Spanned) {
 898			return transformText(text, start, end, true);
 899		} else {
 900			return text.toString().substring(start, end);
 901		}
 902	}
 903
 904	public FileBackend getFileBackend() {
 905		return activity.xmppConnectionService.getFileBackend();
 906	}
 907
 908	public void stopAudioPlayer() {
 909		audioPlayer.stop();
 910	}
 911
 912	public interface OnQuoteListener {
 913		public void onQuote(String text);
 914	}
 915
 916	private class MessageBodyActionModeCallback implements ActionMode.Callback {
 917
 918		private final TextView textView;
 919
 920		public MessageBodyActionModeCallback(TextView textView) {
 921			this.textView = textView;
 922		}
 923
 924		@Override
 925		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
 926			if (onQuoteListener != null) {
 927				int quoteResId = activity.getThemeResource(R.attr.icon_quote, R.drawable.ic_action_reply);
 928				// 3rd item is placed after "copy" item
 929				menu.add(0, android.R.id.button1, 3, R.string.quote).setIcon(quoteResId)
 930						.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
 931			}
 932			return false;
 933		}
 934
 935		@Override
 936		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
 937			return false;
 938		}
 939
 940		@Override
 941		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
 942			if (item.getItemId() == android.R.id.button1) {
 943				int start = textView.getSelectionStart();
 944				int end = textView.getSelectionEnd();
 945				if (end > start) {
 946					String text = transformText(textView.getText(), start, end, false);
 947					if (onQuoteListener != null) {
 948						onQuoteListener.onQuote(text);
 949					}
 950					mode.finish();
 951				}
 952				return true;
 953			}
 954			return false;
 955		}
 956
 957		@Override
 958		public void onDestroyActionMode(ActionMode mode) {}
 959	}
 960
 961	public void openDownloadable(Message message) {
 962		DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 963		if (!file.exists()) {
 964			Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
 965			return;
 966		}
 967		Intent openIntent = new Intent(Intent.ACTION_VIEW);
 968		String mime = file.getMimeType();
 969		if (mime == null) {
 970			mime = "*/*";
 971		}
 972		Uri uri;
 973		try {
 974			uri = FileBackend.getUriForFile(activity, file);
 975		} catch (SecurityException e) {
 976			Log.d(Config.LOGTAG,"No permission to access "+file.getAbsolutePath(),e);
 977			Toast.makeText(activity, activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
 978			return;
 979		}
 980		openIntent.setDataAndType(uri, mime);
 981		openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 982		PackageManager manager = activity.getPackageManager();
 983		List<ResolveInfo> info = manager.queryIntentActivities(openIntent, 0);
 984		if (info.size() == 0) {
 985			openIntent.setDataAndType(uri,"*/*");
 986		}
 987		try {
 988			getContext().startActivity(openIntent);
 989		}  catch (ActivityNotFoundException e) {
 990			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
 991		}
 992	}
 993
 994	public void showLocation(Message message) {
 995		for(Intent intent : GeoHelper.createGeoIntentsFromMessage(message)) {
 996			if (intent.resolveActivity(getContext().getPackageManager()) != null) {
 997				getContext().startActivity(intent);
 998				return;
 999			}
1000		}
1001		Toast.makeText(activity,R.string.no_application_found_to_display_location,Toast.LENGTH_SHORT).show();
1002	}
1003
1004	public void updatePreferences() {
1005		this.mIndicateReceived = activity.indicateReceived();
1006		this.mUseGreenBackground = activity.useGreenBackground();
1007	}
1008
1009	public TextView getMessageBody(View view) {
1010		final Object tag = view.getTag();
1011		if (tag instanceof ViewHolder) {
1012			final ViewHolder viewHolder = (ViewHolder) tag;
1013			return viewHolder.messageBody;
1014		}
1015		return null;
1016	}
1017
1018	public interface OnContactPictureClicked {
1019		void onContactPictureClicked(Message message);
1020	}
1021
1022	public interface OnContactPictureLongClicked {
1023		void onContactPictureLongClicked(Message message);
1024	}
1025
1026	private static class ViewHolder {
1027
1028		protected LinearLayout message_box;
1029		protected Button download_button;
1030		protected ImageView image;
1031		protected ImageView indicator;
1032		protected ImageView indicatorReceived;
1033		protected TextView time;
1034		protected CopyTextView messageBody;
1035		protected ImageView contact_picture;
1036		protected TextView status_message;
1037		protected TextView encryption;
1038		public Button load_more_messages;
1039		public ImageView edit_indicator;
1040		public RelativeLayout audioPlayer;
1041	}
1042
1043	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1044		private final WeakReference<ImageView> imageViewReference;
1045		private Message message = null;
1046		private final int size;
1047
1048		public BitmapWorkerTask(ImageView imageView, int size) {
1049			imageViewReference = new WeakReference<>(imageView);
1050			this.size = size;
1051		}
1052
1053		@Override
1054		protected Bitmap doInBackground(Message... params) {
1055			this.message = params[0];
1056			return activity.avatarService().get(this.message, size, isCancelled());
1057		}
1058
1059		@Override
1060		protected void onPostExecute(Bitmap bitmap) {
1061			if (bitmap != null && !isCancelled()) {
1062				final ImageView imageView = imageViewReference.get();
1063				if (imageView != null) {
1064					imageView.setImageBitmap(bitmap);
1065					imageView.setBackgroundColor(0x00000000);
1066				}
1067			}
1068		}
1069	}
1070
1071	public void loadAvatar(Message message, ImageView imageView, int size) {
1072		if (cancelPotentialWork(message, imageView)) {
1073			final Bitmap bm = activity.avatarService().get(message, size, true);
1074			if (bm != null) {
1075				cancelPotentialWork(message, imageView);
1076				imageView.setImageBitmap(bm);
1077				imageView.setBackgroundColor(Color.TRANSPARENT);
1078			} else {
1079				@ColorInt int bg;
1080				if (message.getType() == Message.TYPE_STATUS && message.getCounterparts() != null && message.getCounterparts().size() > 1) {
1081					bg = Color.TRANSPARENT;
1082				} else {
1083					bg = UIHelper.getColorForName(UIHelper.getMessageDisplayName(message));
1084				}
1085				imageView.setBackgroundColor(bg);
1086				imageView.setImageDrawable(null);
1087				final BitmapWorkerTask task = new BitmapWorkerTask(imageView, size);
1088				final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
1089				imageView.setImageDrawable(asyncDrawable);
1090				try {
1091					task.execute(message);
1092				} catch (final RejectedExecutionException ignored) {
1093				}
1094			}
1095		}
1096	}
1097
1098	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
1099		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
1100
1101		if (bitmapWorkerTask != null) {
1102			final Message oldMessage = bitmapWorkerTask.message;
1103			if (oldMessage == null || message != oldMessage) {
1104				bitmapWorkerTask.cancel(true);
1105			} else {
1106				return false;
1107			}
1108		}
1109		return true;
1110	}
1111
1112	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
1113		if (imageView != null) {
1114			final Drawable drawable = imageView.getDrawable();
1115			if (drawable instanceof AsyncDrawable) {
1116				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
1117				return asyncDrawable.getBitmapWorkerTask();
1118			}
1119		}
1120		return null;
1121	}
1122
1123	static class AsyncDrawable extends BitmapDrawable {
1124		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1125
1126		public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
1127			super(res, bitmap);
1128			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
1129		}
1130
1131		public BitmapWorkerTask getBitmapWorkerTask() {
1132			return bitmapWorkerTaskReference.get();
1133		}
1134	}
1135}