1package eu.siacs.conversations.ui.adapter;
   2
   3import android.Manifest;
   4import android.app.Activity;
   5import android.content.ActivityNotFoundException;
   6import android.content.Intent;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.content.pm.ResolveInfo;
  10import android.content.res.Resources;
  11import android.graphics.Bitmap;
  12import android.graphics.Color;
  13import android.graphics.Typeface;
  14import android.graphics.drawable.BitmapDrawable;
  15import android.graphics.drawable.Drawable;
  16import android.net.Uri;
  17import android.os.AsyncTask;
  18import android.preference.PreferenceManager;
  19import android.support.annotation.ColorInt;
  20import android.support.v4.app.ActivityCompat;
  21import android.support.v4.content.ContextCompat;
  22import android.text.Spannable;
  23import android.text.SpannableString;
  24import android.text.SpannableStringBuilder;
  25import android.text.Spanned;
  26import android.text.format.DateUtils;
  27import android.text.style.ForegroundColorSpan;
  28import android.text.style.RelativeSizeSpan;
  29import android.text.style.StyleSpan;
  30import android.text.util.Linkify;
  31import android.util.DisplayMetrics;
  32import android.util.Log;
  33import android.view.ActionMode;
  34import android.view.Menu;
  35import android.view.MenuItem;
  36import android.view.View;
  37import android.view.View.OnClickListener;
  38import android.view.ViewGroup;
  39import android.view.WindowManager;
  40import android.widget.ArrayAdapter;
  41import android.widget.Button;
  42import android.widget.ImageView;
  43import android.widget.LinearLayout;
  44import android.widget.RelativeLayout;
  45import android.widget.TextView;
  46import android.widget.Toast;
  47
  48import java.lang.ref.WeakReference;
  49import java.net.URL;
  50import java.util.List;
  51import java.util.Locale;
  52import java.util.concurrent.RejectedExecutionException;
  53import java.util.regex.Matcher;
  54import java.util.regex.Pattern;
  55
  56import eu.siacs.conversations.Config;
  57import eu.siacs.conversations.R;
  58import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  59import eu.siacs.conversations.entities.Account;
  60import eu.siacs.conversations.entities.Conversation;
  61import eu.siacs.conversations.entities.Conversational;
  62import eu.siacs.conversations.entities.DownloadableFile;
  63import eu.siacs.conversations.entities.Message;
  64import eu.siacs.conversations.entities.Message.FileParams;
  65import eu.siacs.conversations.entities.Transferable;
  66import eu.siacs.conversations.persistance.FileBackend;
  67import eu.siacs.conversations.services.MessageArchiveService;
  68import eu.siacs.conversations.services.NotificationService;
  69import eu.siacs.conversations.ui.ConversationsActivity;
  70import eu.siacs.conversations.ui.ConversationFragment;
  71import eu.siacs.conversations.ui.XmppActivity;
  72import eu.siacs.conversations.ui.service.AudioPlayer;
  73import eu.siacs.conversations.ui.text.DividerSpan;
  74import eu.siacs.conversations.ui.text.FixedURLSpan;
  75import eu.siacs.conversations.ui.text.QuoteSpan;
  76import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
  77import eu.siacs.conversations.ui.widget.CopyTextView;
  78import eu.siacs.conversations.ui.widget.ListSelectionManager;
  79import eu.siacs.conversations.utils.CryptoHelper;
  80import eu.siacs.conversations.utils.EmojiWrapper;
  81import eu.siacs.conversations.utils.Emoticons;
  82import eu.siacs.conversations.utils.GeoHelper;
  83import eu.siacs.conversations.utils.Patterns;
  84import eu.siacs.conversations.utils.StylingHelper;
  85import eu.siacs.conversations.utils.UIHelper;
  86import eu.siacs.conversations.utils.XmppUri;
  87import eu.siacs.conversations.xmpp.mam.MamReference;
  88
  89public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextView.CopyHandler {
  90
  91	public static final String DATE_SEPARATOR_BODY = "DATE_SEPARATOR";
  92	private static final int SENT = 0;
  93	private static final int RECEIVED = 1;
  94	private static final int STATUS = 2;
  95	private static final int DATE_SEPARATOR = 3;
  96	private static final Pattern XMPP_PATTERN = Pattern
  97			.compile("xmpp\\:(?:(?:["
  98					+ Patterns.GOOD_IRI_CHAR
  99					+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
 100					+ "|(?:\\%[a-fA-F0-9]{2}))+");
 101
 102	private String highlightedText = null;
 103
 104	private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = (matcher, url) -> {
 105		if (url == null) {
 106			return null;
 107		}
 108		final String lcUrl = url.toLowerCase(Locale.US);
 109		if (lcUrl.startsWith("http://") || lcUrl.startsWith("https://")) {
 110			return removeTrailingBracket(url);
 111		} else {
 112			return "http://" + removeTrailingBracket(url);
 113		}
 114	};
 115
 116	private static String removeTrailingBracket(final String url) {
 117		int numOpenBrackets = 0;
 118		for (char c : url.toCharArray()) {
 119			if (c == '(') {
 120				++numOpenBrackets;
 121			} else if (c == ')') {
 122				--numOpenBrackets;
 123			}
 124		}
 125		if (numOpenBrackets != 0 && url.charAt(url.length() - 1) == ')') {
 126			return url.substring(0, url.length() - 1);
 127		} else {
 128			return url;
 129		}
 130	}
 131
 132	private static final Linkify.MatchFilter WEBURL_MATCH_FILTER = (cs, start, end) -> start < 1 || (cs.charAt(start - 1) != '@' && cs.charAt(start - 1) != '.' && !cs.subSequence(Math.max(0, start - 3), start).equals("://"));
 133
 134	private static final Linkify.MatchFilter XMPPURI_MATCH_FILTER = (s, start, end) -> {
 135		XmppUri uri = new XmppUri(s.subSequence(start, end).toString());
 136		return uri.isJidValid();
 137	};
 138
 139	private final XmppActivity activity;
 140	private final ListSelectionManager listSelectionManager = new ListSelectionManager();
 141	private final AudioPlayer audioPlayer;
 142	private DisplayMetrics metrics;
 143	private OnContactPictureClicked mOnContactPictureClickedListener;
 144	private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
 145	private boolean mIndicateReceived = false;
 146	private boolean mUseGreenBackground = false;
 147	private OnQuoteListener onQuoteListener;
 148
 149	public MessageAdapter(XmppActivity activity, List<Message> messages) {
 150		super(activity, 0, messages);
 151		this.audioPlayer = new AudioPlayer(this);
 152		this.activity = activity;
 153		metrics = getContext().getResources().getDisplayMetrics();
 154		updatePreferences();
 155	}
 156
 157	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
 158		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
 159
 160		if (bitmapWorkerTask != null) {
 161			final Message oldMessage = bitmapWorkerTask.message;
 162			if (oldMessage == null || message != oldMessage) {
 163				bitmapWorkerTask.cancel(true);
 164			} else {
 165				return false;
 166			}
 167		}
 168		return true;
 169	}
 170
 171	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
 172		if (imageView != null) {
 173			final Drawable drawable = imageView.getDrawable();
 174			if (drawable instanceof AsyncDrawable) {
 175				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
 176				return asyncDrawable.getBitmapWorkerTask();
 177			}
 178		}
 179		return null;
 180	}
 181
 182	public void flagScreenOn() {
 183		activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 184	}
 185
 186	public void flagScreenOff() {
 187		activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 188	}
 189
 190	public void setOnContactPictureClicked(OnContactPictureClicked listener) {
 191		this.mOnContactPictureClickedListener = listener;
 192	}
 193
 194	public Activity getActivity() {
 195		return activity;
 196	}
 197
 198	public void setOnContactPictureLongClicked(
 199			OnContactPictureLongClicked listener) {
 200		this.mOnContactPictureLongClickedListener = listener;
 201	}
 202
 203	public void setOnQuoteListener(OnQuoteListener listener) {
 204		this.onQuoteListener = listener;
 205	}
 206
 207	@Override
 208	public int getViewTypeCount() {
 209		return 4;
 210	}
 211
 212	public int getItemViewType(Message message) {
 213		if (message.getType() == Message.TYPE_STATUS) {
 214			if (DATE_SEPARATOR_BODY.equals(message.getBody())) {
 215				return DATE_SEPARATOR;
 216			} else {
 217				return STATUS;
 218			}
 219		} else if (message.getStatus() <= Message.STATUS_RECEIVED) {
 220			return RECEIVED;
 221		}
 222
 223		return SENT;
 224	}
 225
 226	@Override
 227	public int getItemViewType(int position) {
 228		return this.getItemViewType(getItem(position));
 229	}
 230
 231	public int getMessageTextColor(boolean onDark, boolean primary) {
 232		if (onDark) {
 233			return ContextCompat.getColor(activity, primary ? R.color.white : R.color.white70);
 234		} else {
 235			return ContextCompat.getColor(activity, primary ? R.color.black87 : R.color.black54);
 236		}
 237	}
 238
 239	private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
 240		String filesize = null;
 241		String info = null;
 242		boolean error = false;
 243		if (viewHolder.indicatorReceived != null) {
 244			viewHolder.indicatorReceived.setVisibility(View.GONE);
 245		}
 246
 247		if (viewHolder.edit_indicator != null) {
 248			if (message.edited()) {
 249				viewHolder.edit_indicator.setVisibility(View.VISIBLE);
 250				viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
 251				viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
 252			} else {
 253				viewHolder.edit_indicator.setVisibility(View.GONE);
 254			}
 255		}
 256		boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
 257				&& message.getMergedStatus() <= Message.STATUS_RECEIVED;
 258		if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE || message.getTransferable() != null) {
 259			FileParams params = message.getFileParams();
 260			if (params.size > (1.5 * 1024 * 1024)) {
 261				filesize = Math.round(params.size * 1f / (1024 * 1024)) + " MiB";
 262			} else if (params.size >= 1024) {
 263				filesize = Math.round(params.size * 1f / 1024) + " KiB";
 264			} else if (params.size > 0) {
 265				filesize = params.size + " B";
 266			}
 267			if (message.getTransferable() != null && message.getTransferable().getStatus() == Transferable.STATUS_FAILED) {
 268				error = true;
 269			}
 270		}
 271		switch (message.getMergedStatus()) {
 272			case Message.STATUS_WAITING:
 273				info = getContext().getString(R.string.waiting);
 274				break;
 275			case Message.STATUS_UNSEND:
 276				Transferable d = message.getTransferable();
 277				if (d != null) {
 278					info = getContext().getString(R.string.sending_file, d.getProgress());
 279				} else {
 280					info = getContext().getString(R.string.sending);
 281				}
 282				break;
 283			case Message.STATUS_OFFERED:
 284				info = getContext().getString(R.string.offering);
 285				break;
 286			case Message.STATUS_SEND_RECEIVED:
 287				if (mIndicateReceived) {
 288					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
 289				}
 290				break;
 291			case Message.STATUS_SEND_DISPLAYED:
 292				if (mIndicateReceived) {
 293					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
 294				}
 295				break;
 296			case Message.STATUS_SEND_FAILED:
 297				info = getContext().getString(R.string.send_failed);
 298				error = true;
 299				break;
 300			default:
 301				if (multiReceived) {
 302					info = UIHelper.getMessageDisplayName(message);
 303				}
 304				break;
 305		}
 306		if (error && type == SENT) {
 307			viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_Warning);
 308		} else {
 309			if (darkBackground) {
 310				viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_OnDark);
 311			} else {
 312				viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption);
 313			}
 314			viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground, false));
 315		}
 316		if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 317			viewHolder.indicator.setVisibility(View.GONE);
 318		} else {
 319			boolean verified = false;
 320			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
 321				final FingerprintStatus status = message.getConversation()
 322						.getAccount().getAxolotlService().getFingerprintTrust(
 323								message.getFingerprint());
 324				if (status != null && status.isVerified()) {
 325					verified = true;
 326				}
 327			}
 328			if (verified) {
 329				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_verified_user_white_18dp : R.drawable.ic_verified_user_black_18dp);
 330			} else {
 331				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
 332			}
 333			if (darkBackground) {
 334				viewHolder.indicator.setAlpha(0.7f);
 335			} else {
 336				viewHolder.indicator.setAlpha(0.57f);
 337			}
 338			viewHolder.indicator.setVisibility(View.VISIBLE);
 339		}
 340
 341		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getMergedTimeSent());
 342		if (message.getStatus() <= Message.STATUS_RECEIVED) {
 343			if ((filesize != null) && (info != null)) {
 344				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize + " \u00B7 " + info);
 345			} else if ((filesize == null) && (info != null)) {
 346				viewHolder.time.setText(formatedTime + " \u00B7 " + info);
 347			} else if ((filesize != null) && (info == null)) {
 348				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize);
 349			} else {
 350				viewHolder.time.setText(formatedTime);
 351			}
 352		} else {
 353			if ((filesize != null) && (info != null)) {
 354				viewHolder.time.setText(filesize + " \u00B7 " + info);
 355			} else if ((filesize == null) && (info != null)) {
 356				if (error) {
 357					viewHolder.time.setText(info + " \u00B7 " + formatedTime);
 358				} else {
 359					viewHolder.time.setText(info);
 360				}
 361			} else if ((filesize != null) && (info == null)) {
 362				viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
 363			} else {
 364				viewHolder.time.setText(formatedTime);
 365			}
 366		}
 367	}
 368
 369	private void displayInfoMessage(ViewHolder viewHolder, String text, boolean darkBackground) {
 370		viewHolder.download_button.setVisibility(View.GONE);
 371		viewHolder.audioPlayer.setVisibility(View.GONE);
 372		viewHolder.image.setVisibility(View.GONE);
 373		viewHolder.messageBody.setVisibility(View.VISIBLE);
 374		viewHolder.messageBody.setText(text);
 375		if (darkBackground) {
 376			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Secondary_OnDark);
 377		} else {
 378			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Secondary);
 379		}
 380		viewHolder.messageBody.setTextIsSelectable(false);
 381	}
 382
 383	private void displayEmojiMessage(final ViewHolder viewHolder, final String body, final boolean darkBackground) {
 384		viewHolder.download_button.setVisibility(View.GONE);
 385		viewHolder.audioPlayer.setVisibility(View.GONE);
 386		viewHolder.image.setVisibility(View.GONE);
 387		viewHolder.messageBody.setVisibility(View.VISIBLE);
 388		if (darkBackground) {
 389			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Emoji_OnDark);
 390		} else {
 391			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Emoji);
 392		}
 393		Spannable span = new SpannableString(body);
 394		float size = Emoticons.isEmoji(body) ? 3.0f : 2.0f;
 395		span.setSpan(new RelativeSizeSpan(size), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 396		viewHolder.messageBody.setText(EmojiWrapper.transform(span));
 397	}
 398
 399	private int applyQuoteSpan(SpannableStringBuilder body, int start, int end, boolean darkBackground) {
 400		if (start > 1 && !"\n\n".equals(body.subSequence(start - 2, start).toString())) {
 401			body.insert(start++, "\n");
 402			body.setSpan(new DividerSpan(false), start - 2, start, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 403			end++;
 404		}
 405		if (end < body.length() - 1 && !"\n\n".equals(body.subSequence(end, end + 2).toString())) {
 406			body.insert(end, "\n");
 407			body.setSpan(new DividerSpan(false), end, end + 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 408		}
 409		int color = darkBackground ? this.getMessageTextColor(darkBackground, false)
 410				: ContextCompat.getColor(activity, R.color.green700_desaturated);
 411		DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
 412		body.setSpan(new QuoteSpan(color, metrics), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 413		return 0;
 414	}
 415
 416	/**
 417	 * Applies QuoteSpan to group of lines which starts with > or » characters.
 418	 * Appends likebreaks and applies DividerSpan to them to show a padding between quote and text.
 419	 */
 420	private boolean handleTextQuotes(SpannableStringBuilder body, boolean darkBackground) {
 421		boolean startsWithQuote = false;
 422		char previous = '\n';
 423		int lineStart = -1;
 424		int lineTextStart = -1;
 425		int quoteStart = -1;
 426		for (int i = 0; i <= body.length(); i++) {
 427			char current = body.length() > i ? body.charAt(i) : '\n';
 428			if (lineStart == -1) {
 429				if (previous == '\n') {
 430					if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body, i))
 431							|| current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body, i)) {
 432						// Line start with quote
 433						lineStart = i;
 434						if (quoteStart == -1) quoteStart = i;
 435						if (i == 0) startsWithQuote = true;
 436					} else if (quoteStart >= 0) {
 437						// Line start without quote, apply spans there
 438						applyQuoteSpan(body, quoteStart, i - 1, darkBackground);
 439						quoteStart = -1;
 440					}
 441				}
 442			} else {
 443				// Remove extra spaces between > and first character in the line
 444				// > character will be removed too
 445				if (current != ' ' && lineTextStart == -1) {
 446					lineTextStart = i;
 447				}
 448				if (current == '\n') {
 449					body.delete(lineStart, lineTextStart);
 450					i -= lineTextStart - lineStart;
 451					if (i == lineStart) {
 452						// Avoid empty lines because span over empty line can be hidden
 453						body.insert(i++, " ");
 454					}
 455					lineStart = -1;
 456					lineTextStart = -1;
 457				}
 458			}
 459			previous = current;
 460		}
 461		if (quoteStart >= 0) {
 462			// Apply spans to finishing open quote
 463			applyQuoteSpan(body, quoteStart, body.length(), darkBackground);
 464		}
 465		return startsWithQuote;
 466	}
 467
 468	private void displayTextMessage(final ViewHolder viewHolder, final Message message, boolean darkBackground, int type) {
 469		viewHolder.download_button.setVisibility(View.GONE);
 470		viewHolder.image.setVisibility(View.GONE);
 471		viewHolder.audioPlayer.setVisibility(View.GONE);
 472		viewHolder.messageBody.setVisibility(View.VISIBLE);
 473
 474		if (darkBackground) {
 475			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_OnDark);
 476		} else {
 477			viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1);
 478		}
 479		viewHolder.messageBody.setHighlightColor(ContextCompat.getColor(activity, darkBackground
 480				? (type == SENT || !mUseGreenBackground ? R.color.black26 : R.color.grey800) : R.color.grey500));
 481		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
 482
 483		if (message.getBody() != null) {
 484			final String nick = UIHelper.getMessageDisplayName(message);
 485			SpannableStringBuilder body = message.getMergedBody();
 486			boolean hasMeCommand = message.hasMeCommand();
 487			if (hasMeCommand) {
 488				body = body.replace(0, Message.ME_COMMAND.length(), nick + " ");
 489			}
 490			if (body.length() > Config.MAX_DISPLAY_MESSAGE_CHARS) {
 491				body = new SpannableStringBuilder(body, 0, Config.MAX_DISPLAY_MESSAGE_CHARS);
 492				body.append("\u2026");
 493			}
 494			Message.MergeSeparator[] mergeSeparators = body.getSpans(0, body.length(), Message.MergeSeparator.class);
 495			for (Message.MergeSeparator mergeSeparator : mergeSeparators) {
 496				int start = body.getSpanStart(mergeSeparator);
 497				int end = body.getSpanEnd(mergeSeparator);
 498				body.setSpan(new DividerSpan(true), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 499			}
 500			boolean startsWithQuote = handleTextQuotes(body, darkBackground);
 501			if (message.getType() != Message.TYPE_PRIVATE) {
 502				if (hasMeCommand) {
 503					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, nick.length(),
 504							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 505				}
 506			} else {
 507				String privateMarker;
 508				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 509					privateMarker = activity.getString(R.string.private_message);
 510				} else {
 511					final String to;
 512					if (message.getCounterpart() != null) {
 513						to = message.getCounterpart().getResource();
 514					} else {
 515						to = "";
 516					}
 517					privateMarker = activity.getString(R.string.private_message_to, to);
 518				}
 519				body.insert(0, privateMarker);
 520				int privateMarkerIndex = privateMarker.length();
 521				if (startsWithQuote) {
 522					body.insert(privateMarkerIndex, "\n\n");
 523					body.setSpan(new DividerSpan(false), privateMarkerIndex, privateMarkerIndex + 2,
 524							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 525				} else {
 526					body.insert(privateMarkerIndex, " ");
 527				}
 528				body.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground, false)), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 529				body.setSpan(new StyleSpan(Typeface.BOLD), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 530				if (hasMeCommand) {
 531					body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), privateMarkerIndex + 1,
 532							privateMarkerIndex + 1 + nick.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 533				}
 534			}
 535			if (message.getConversation().getMode() == Conversation.MODE_MULTI && message.getStatus() == Message.STATUS_RECEIVED) {
 536				if (message.getConversation() instanceof Conversation) {
 537					final Conversation conversation = (Conversation) message.getConversation();
 538					Pattern pattern = NotificationService.generateNickHighlightPattern(conversation.getMucOptions().getActualNick());
 539					Matcher matcher = pattern.matcher(body);
 540					while (matcher.find()) {
 541						body.setSpan(new StyleSpan(Typeface.BOLD), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 542					}
 543				}
 544			}
 545			Matcher matcher = Emoticons.generatePattern(body).matcher(body);
 546			while (matcher.find()) {
 547				if (matcher.start() < matcher.end()) {
 548					body.setSpan(new RelativeSizeSpan(1.2f), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 549				}
 550			}
 551
 552			StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
 553			if (highlightedText != null) {
 554				StylingHelper.highlight(activity, body, highlightedText, StylingHelper.isDarkText(viewHolder.messageBody));
 555			}
 556
 557			Linkify.addLinks(body, XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null);
 558			Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER);
 559			Linkify.addLinks(body, GeoHelper.GEO_URI, "geo");
 560			FixedURLSpan.fix(body);
 561			viewHolder.messageBody.setAutoLinkMask(0);
 562			viewHolder.messageBody.setText(EmojiWrapper.transform(body));
 563			viewHolder.messageBody.setTextIsSelectable(true);
 564			viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
 565			listSelectionManager.onUpdate(viewHolder.messageBody, message);
 566		} else {
 567			viewHolder.messageBody.setText("");
 568			viewHolder.messageBody.setTextIsSelectable(false);
 569		}
 570	}
 571
 572	private void displayDownloadableMessage(ViewHolder viewHolder, final Message message, String text) {
 573		viewHolder.image.setVisibility(View.GONE);
 574		viewHolder.messageBody.setVisibility(View.GONE);
 575		viewHolder.audioPlayer.setVisibility(View.GONE);
 576		viewHolder.download_button.setVisibility(View.VISIBLE);
 577		viewHolder.download_button.setText(text);
 578		viewHolder.download_button.setOnClickListener(v -> ConversationFragment.downloadFile(activity, message));
 579	}
 580
 581	private void displayOpenableMessage(ViewHolder viewHolder, final Message message) {
 582		viewHolder.image.setVisibility(View.GONE);
 583		viewHolder.messageBody.setVisibility(View.GONE);
 584		viewHolder.audioPlayer.setVisibility(View.GONE);
 585		viewHolder.download_button.setVisibility(View.VISIBLE);
 586		viewHolder.download_button.setText(activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message)));
 587		viewHolder.download_button.setOnClickListener(v -> openDownloadable(message));
 588	}
 589
 590	private void displayLocationMessage(ViewHolder viewHolder, final Message message) {
 591		viewHolder.image.setVisibility(View.GONE);
 592		viewHolder.messageBody.setVisibility(View.GONE);
 593		viewHolder.audioPlayer.setVisibility(View.GONE);
 594		viewHolder.download_button.setVisibility(View.VISIBLE);
 595		viewHolder.download_button.setText(R.string.show_location);
 596		viewHolder.download_button.setOnClickListener(v -> showLocation(message));
 597	}
 598
 599	private void displayAudioMessage(ViewHolder viewHolder, Message message, boolean darkBackground) {
 600		viewHolder.image.setVisibility(View.GONE);
 601		viewHolder.messageBody.setVisibility(View.GONE);
 602		viewHolder.download_button.setVisibility(View.GONE);
 603		final RelativeLayout audioPlayer = viewHolder.audioPlayer;
 604		audioPlayer.setVisibility(View.VISIBLE);
 605		AudioPlayer.ViewHolder.get(audioPlayer).setDarkBackground(darkBackground);
 606		this.audioPlayer.init(audioPlayer, message);
 607	}
 608
 609	private void displayImageMessage(ViewHolder viewHolder, final Message message) {
 610		viewHolder.download_button.setVisibility(View.GONE);
 611		viewHolder.messageBody.setVisibility(View.GONE);
 612		viewHolder.audioPlayer.setVisibility(View.GONE);
 613		viewHolder.image.setVisibility(View.VISIBLE);
 614		FileParams params = message.getFileParams();
 615		double target = metrics.density * 288;
 616		int scaledW;
 617		int scaledH;
 618		if (Math.max(params.height, params.width) * metrics.density <= target) {
 619			scaledW = (int) (params.width * metrics.density);
 620			scaledH = (int) (params.height * metrics.density);
 621		} else if (Math.max(params.height, params.width) <= target) {
 622			scaledW = params.width;
 623			scaledH = params.height;
 624		} else if (params.width <= params.height) {
 625			scaledW = (int) (params.width / ((double) params.height / target));
 626			scaledH = (int) target;
 627		} else {
 628			scaledW = (int) target;
 629			scaledH = (int) (params.height / ((double) params.width / target));
 630		}
 631		LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(scaledW, scaledH);
 632		layoutParams.setMargins(0, (int) (metrics.density * 4), 0, (int) (metrics.density * 4));
 633		viewHolder.image.setLayoutParams(layoutParams);
 634		activity.loadBitmap(message, viewHolder.image);
 635		viewHolder.image.setOnClickListener(v -> openDownloadable(message));
 636	}
 637
 638	private void loadMoreMessages(Conversation conversation) {
 639		conversation.setLastClearHistory(0, null);
 640		activity.xmppConnectionService.updateConversation(conversation);
 641		conversation.setHasMessagesLeftOnServer(true);
 642		conversation.setFirstMamReference(null);
 643		long timestamp = conversation.getLastMessageTransmitted().getTimestamp();
 644		if (timestamp == 0) {
 645			timestamp = System.currentTimeMillis();
 646		}
 647		conversation.messagesLoaded.set(true);
 648		MessageArchiveService.Query query = activity.xmppConnectionService.getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
 649		if (query != null) {
 650			Toast.makeText(activity, R.string.fetching_history_from_server, Toast.LENGTH_LONG).show();
 651		} else {
 652			Toast.makeText(activity, R.string.not_fetching_history_retention_period, Toast.LENGTH_SHORT).show();
 653		}
 654	}
 655
 656	@Override
 657	public View getView(int position, View view, ViewGroup parent) {
 658		final Message message = getItem(position);
 659		final boolean omemoEncryption = message.getEncryption() == Message.ENCRYPTION_AXOLOTL;
 660		final boolean isInValidSession = message.isValidInSession() && (!omemoEncryption || message.isTrusted());
 661		final Conversational conversation = message.getConversation();
 662		final Account account = conversation.getAccount();
 663		final int type = getItemViewType(position);
 664		ViewHolder viewHolder;
 665		if (view == null) {
 666			viewHolder = new ViewHolder();
 667			switch (type) {
 668				case DATE_SEPARATOR:
 669					view = activity.getLayoutInflater().inflate(R.layout.message_date_bubble, parent, false);
 670					viewHolder.status_message = view.findViewById(R.id.message_body);
 671					viewHolder.message_box = view.findViewById(R.id.message_box);
 672					break;
 673				case SENT:
 674					view = activity.getLayoutInflater().inflate(R.layout.message_sent, parent, false);
 675					viewHolder.message_box = view.findViewById(R.id.message_box);
 676					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 677					viewHolder.download_button = view.findViewById(R.id.download_button);
 678					viewHolder.indicator = view.findViewById(R.id.security_indicator);
 679					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 680					viewHolder.image = view.findViewById(R.id.message_image);
 681					viewHolder.messageBody = view.findViewById(R.id.message_body);
 682					viewHolder.time = view.findViewById(R.id.message_time);
 683					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 684					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 685					break;
 686				case RECEIVED:
 687					view = activity.getLayoutInflater().inflate(R.layout.message_received, parent, false);
 688					viewHolder.message_box = view.findViewById(R.id.message_box);
 689					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 690					viewHolder.download_button = view.findViewById(R.id.download_button);
 691					viewHolder.indicator = view.findViewById(R.id.security_indicator);
 692					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 693					viewHolder.image = view.findViewById(R.id.message_image);
 694					viewHolder.messageBody = view.findViewById(R.id.message_body);
 695					viewHolder.time = view.findViewById(R.id.message_time);
 696					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 697					viewHolder.encryption = view.findViewById(R.id.message_encryption);
 698					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 699					break;
 700				case STATUS:
 701					view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
 702					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 703					viewHolder.status_message = view.findViewById(R.id.status_message);
 704					viewHolder.load_more_messages = view.findViewById(R.id.load_more_messages);
 705					break;
 706				default:
 707					throw new AssertionError("Unknown view type");
 708			}
 709			if (viewHolder.messageBody != null) {
 710				listSelectionManager.onCreate(viewHolder.messageBody,
 711						new MessageBodyActionModeCallback(viewHolder.messageBody));
 712				viewHolder.messageBody.setCopyHandler(this);
 713			}
 714			view.setTag(viewHolder);
 715		} else {
 716			viewHolder = (ViewHolder) view.getTag();
 717			if (viewHolder == null) {
 718				return view;
 719			}
 720		}
 721
 722		boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
 723
 724		if (type == DATE_SEPARATOR) {
 725			if (UIHelper.today(message.getTimeSent())) {
 726				viewHolder.status_message.setText(R.string.today);
 727			} else if (UIHelper.yesterday(message.getTimeSent())) {
 728				viewHolder.status_message.setText(R.string.yesterday);
 729			} else {
 730				viewHolder.status_message.setText(DateUtils.formatDateTime(activity, message.getTimeSent(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR));
 731			}
 732			viewHolder.message_box.setBackgroundResource(activity.isDarkTheme() ? R.drawable.date_bubble_grey : R.drawable.date_bubble_white);
 733			return view;
 734		} else if (type == STATUS) {
 735			if ("LOAD_MORE".equals(message.getBody())) {
 736				viewHolder.status_message.setVisibility(View.GONE);
 737				viewHolder.contact_picture.setVisibility(View.GONE);
 738				viewHolder.load_more_messages.setVisibility(View.VISIBLE);
 739				viewHolder.load_more_messages.setOnClickListener(v -> loadMoreMessages((Conversation) message.getConversation()));
 740			} else {
 741				viewHolder.status_message.setVisibility(View.VISIBLE);
 742				viewHolder.load_more_messages.setVisibility(View.GONE);
 743				viewHolder.status_message.setText(message.getBody());
 744				boolean showAvatar;
 745				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 746					showAvatar = true;
 747					loadAvatar(message, viewHolder.contact_picture, activity.getPixel(32));
 748				} else if (message.getCounterpart() != null || message.getTrueCounterpart() != null || (message.getCounterparts() != null && message.getCounterparts().size() > 0)) {
 749					showAvatar = true;
 750					loadAvatar(message, viewHolder.contact_picture, activity.getPixel(32));
 751				} else {
 752					showAvatar = false;
 753				}
 754				if (showAvatar) {
 755					viewHolder.contact_picture.setAlpha(0.5f);
 756					viewHolder.contact_picture.setVisibility(View.VISIBLE);
 757				} else {
 758					viewHolder.contact_picture.setVisibility(View.GONE);
 759				}
 760			}
 761			return view;
 762		} else {
 763			loadAvatar(message, viewHolder.contact_picture, activity.getPixel(48));
 764		}
 765
 766		resetClickListener(viewHolder.message_box, viewHolder.messageBody);
 767
 768		viewHolder.contact_picture.setOnClickListener(v -> {
 769			if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
 770				MessageAdapter.this.mOnContactPictureClickedListener
 771						.onContactPictureClicked(message);
 772			}
 773
 774		});
 775		viewHolder.contact_picture.setOnLongClickListener(v -> {
 776			if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
 777				MessageAdapter.this.mOnContactPictureLongClickedListener
 778						.onContactPictureLongClicked(message);
 779				return true;
 780			} else {
 781				return false;
 782			}
 783		});
 784
 785		final Transferable transferable = message.getTransferable();
 786		if (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING) {
 787			if (transferable.getStatus() == Transferable.STATUS_OFFER) {
 788				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)));
 789			} else if (transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
 790				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)));
 791			} else {
 792				displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first, darkBackground);
 793			}
 794		} else if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
 795			displayImageMessage(viewHolder, message);
 796		} else if (message.getType() == Message.TYPE_FILE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
 797			if (message.getFileParams().width > 0 && message.getFileParams().height > 0) {
 798				displayImageMessage(viewHolder, message);
 799			} else if (message.getFileParams().runtime > 0) {
 800				displayAudioMessage(viewHolder, message, darkBackground);
 801			} else {
 802				displayOpenableMessage(viewHolder, message);
 803			}
 804		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 805			if (account.isPgpDecryptionServiceConnected()) {
 806				if (conversation instanceof Conversation && !account.hasPendingPgpIntent((Conversation) conversation)) {
 807					displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
 808				} else {
 809					displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
 810				}
 811			} else {
 812				displayInfoMessage(viewHolder, activity.getString(R.string.install_openkeychain), darkBackground);
 813				viewHolder.message_box.setOnClickListener(this::promptOpenKeychainInstall);
 814				viewHolder.messageBody.setOnClickListener(this::promptOpenKeychainInstall);
 815			}
 816		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 817			displayInfoMessage(viewHolder, activity.getString(R.string.decryption_failed), darkBackground);
 818		} else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
 819			displayInfoMessage(viewHolder, activity.getString(R.string.not_encrypted_for_this_device), darkBackground);
 820		} else {
 821			if (message.isGeoUri()) {
 822				displayLocationMessage(viewHolder, message);
 823			} else if (message.bodyIsOnlyEmojis() && message.getType() != Message.TYPE_PRIVATE) {
 824				displayEmojiMessage(viewHolder, message.getBody().trim(), darkBackground);
 825			} else if (message.treatAsDownloadable()) {
 826				try {
 827					URL url = new URL(message.getBody());
 828					displayDownloadableMessage(viewHolder,
 829							message,
 830							activity.getString(R.string.check_x_filesize_on_host,
 831									UIHelper.getFileDescriptionString(activity, message),
 832									url.getHost()));
 833				} catch (Exception e) {
 834					displayDownloadableMessage(viewHolder,
 835							message,
 836							activity.getString(R.string.check_x_filesize,
 837									UIHelper.getFileDescriptionString(activity, message)));
 838				}
 839			} else {
 840				displayTextMessage(viewHolder, message, darkBackground, type);
 841			}
 842		}
 843
 844		if (type == RECEIVED) {
 845			if (isInValidSession) {
 846				int bubble;
 847				if (!mUseGreenBackground) {
 848					bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
 849				} else {
 850					bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
 851				}
 852				viewHolder.message_box.setBackgroundResource(bubble);
 853				viewHolder.encryption.setVisibility(View.GONE);
 854			} else {
 855				viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
 856				viewHolder.encryption.setVisibility(View.VISIBLE);
 857				if (omemoEncryption && !message.isTrusted()) {
 858					viewHolder.encryption.setText(R.string.not_trusted);
 859				} else {
 860					viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
 861				}
 862			}
 863		}
 864
 865		displayStatus(viewHolder, message, type, darkBackground);
 866
 867		return view;
 868	}
 869
 870	private void promptOpenKeychainInstall(View view) {
 871		activity.showInstallPgpDialog();
 872	}
 873
 874	private static void resetClickListener(View... views) {
 875		for (View view : views) {
 876			view.setOnClickListener(null);
 877		}
 878	}
 879
 880	@Override
 881	public void notifyDataSetChanged() {
 882		listSelectionManager.onBeforeNotifyDataSetChanged();
 883		super.notifyDataSetChanged();
 884		listSelectionManager.onAfterNotifyDataSetChanged();
 885	}
 886
 887	private String transformText(CharSequence text, int start, int end, boolean forCopy) {
 888		SpannableStringBuilder builder = new SpannableStringBuilder(text);
 889		Object copySpan = new Object();
 890		builder.setSpan(copySpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 891		DividerSpan[] dividerSpans = builder.getSpans(0, builder.length(), DividerSpan.class);
 892		for (DividerSpan dividerSpan : dividerSpans) {
 893			builder.replace(builder.getSpanStart(dividerSpan), builder.getSpanEnd(dividerSpan),
 894					dividerSpan.isLarge() ? "\n\n" : "\n");
 895		}
 896		start = builder.getSpanStart(copySpan);
 897		end = builder.getSpanEnd(copySpan);
 898		if (start == -1 || end == -1) return "";
 899		builder = new SpannableStringBuilder(builder, start, end);
 900		if (forCopy) {
 901			QuoteSpan[] quoteSpans = builder.getSpans(0, builder.length(), QuoteSpan.class);
 902			for (QuoteSpan quoteSpan : quoteSpans) {
 903				builder.insert(builder.getSpanStart(quoteSpan), "> ");
 904			}
 905		}
 906		return builder.toString();
 907	}
 908
 909	@Override
 910	public String transformTextForCopy(CharSequence text, int start, int end) {
 911		if (text instanceof Spanned) {
 912			return transformText(text, start, end, true);
 913		} else {
 914			return text.toString().substring(start, end);
 915		}
 916	}
 917
 918	public FileBackend getFileBackend() {
 919		return activity.xmppConnectionService.getFileBackend();
 920	}
 921
 922	public void stopAudioPlayer() {
 923		audioPlayer.stop();
 924	}
 925
 926	public void startStopPending() {
 927		audioPlayer.startStopPending();
 928	}
 929
 930	public void openDownloadable(Message message) {
 931		if (ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 932			ConversationFragment.registerPendingMessage(activity, message);
 933			ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, ConversationsActivity.REQUEST_OPEN_MESSAGE);
 934			return;
 935		}
 936		DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 937		if (!file.exists()) {
 938			Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 939			return;
 940		}
 941		Intent openIntent = new Intent(Intent.ACTION_VIEW);
 942		String mime = file.getMimeType();
 943		if (mime == null) {
 944			mime = "*/*";
 945		}
 946		Uri uri;
 947		try {
 948			uri = FileBackend.getUriForFile(activity, file);
 949		} catch (SecurityException e) {
 950			Log.d(Config.LOGTAG, "No permission to access " + file.getAbsolutePath(), e);
 951			Toast.makeText(activity, activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
 952			return;
 953		}
 954		openIntent.setDataAndType(uri, mime);
 955		openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 956		PackageManager manager = activity.getPackageManager();
 957		List<ResolveInfo> info = manager.queryIntentActivities(openIntent, 0);
 958		if (info.size() == 0) {
 959			openIntent.setDataAndType(uri, "*/*");
 960		}
 961		try {
 962			getContext().startActivity(openIntent);
 963		} catch (ActivityNotFoundException e) {
 964			Toast.makeText(activity, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
 965		}
 966	}
 967
 968	public void showLocation(Message message) {
 969		for (Intent intent : GeoHelper.createGeoIntentsFromMessage(message)) {
 970			if (intent.resolveActivity(getContext().getPackageManager()) != null) {
 971				getContext().startActivity(intent);
 972				return;
 973			}
 974		}
 975		Toast.makeText(activity, R.string.no_application_found_to_display_location, Toast.LENGTH_SHORT).show();
 976	}
 977
 978	public void updatePreferences() {
 979		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
 980		this.mIndicateReceived = p.getBoolean("indicate_received", activity.getResources().getBoolean(R.bool.indicate_received));
 981		this.mUseGreenBackground = p.getBoolean("use_green_background", activity.getResources().getBoolean(R.bool.use_green_background));
 982	}
 983
 984	public void loadAvatar(Message message, ImageView imageView, int size) {
 985		if (cancelPotentialWork(message, imageView)) {
 986			final Bitmap bm = activity.avatarService().get(message, size, true);
 987			if (bm != null) {
 988				cancelPotentialWork(message, imageView);
 989				imageView.setImageBitmap(bm);
 990				imageView.setBackgroundColor(Color.TRANSPARENT);
 991			} else {
 992				@ColorInt int bg;
 993				if (message.getType() == Message.TYPE_STATUS && message.getCounterparts() != null && message.getCounterparts().size() > 1) {
 994					bg = Color.TRANSPARENT;
 995				} else {
 996					bg = UIHelper.getColorForName(UIHelper.getMessageDisplayName(message));
 997				}
 998				imageView.setBackgroundColor(bg);
 999				imageView.setImageDrawable(null);
1000				final BitmapWorkerTask task = new BitmapWorkerTask(imageView, size);
1001				final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
1002				imageView.setImageDrawable(asyncDrawable);
1003				try {
1004					task.execute(message);
1005				} catch (final RejectedExecutionException ignored) {
1006				}
1007			}
1008		}
1009	}
1010
1011	public void setHighlightedTerm(String term) {
1012		this.highlightedText = term;
1013	}
1014
1015	public interface OnQuoteListener {
1016		void onQuote(String text);
1017	}
1018
1019	public interface OnContactPictureClicked {
1020		void onContactPictureClicked(Message message);
1021	}
1022
1023	public interface OnContactPictureLongClicked {
1024		void onContactPictureLongClicked(Message message);
1025	}
1026
1027	private static class ViewHolder {
1028
1029		public Button load_more_messages;
1030		public ImageView edit_indicator;
1031		public RelativeLayout audioPlayer;
1032		protected LinearLayout message_box;
1033		protected Button download_button;
1034		protected ImageView image;
1035		protected ImageView indicator;
1036		protected ImageView indicatorReceived;
1037		protected TextView time;
1038		protected CopyTextView messageBody;
1039		protected ImageView contact_picture;
1040		protected TextView status_message;
1041		protected TextView encryption;
1042	}
1043
1044	static class AsyncDrawable extends BitmapDrawable {
1045		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1046
1047		public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
1048			super(res, bitmap);
1049			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
1050		}
1051
1052		public BitmapWorkerTask getBitmapWorkerTask() {
1053			return bitmapWorkerTaskReference.get();
1054		}
1055	}
1056
1057	private class MessageBodyActionModeCallback implements ActionMode.Callback {
1058
1059		private final TextView textView;
1060
1061		public MessageBodyActionModeCallback(TextView textView) {
1062			this.textView = textView;
1063		}
1064
1065		@Override
1066		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
1067			if (onQuoteListener != null) {
1068				int quoteResId = activity.getThemeResource(R.attr.icon_quote, R.drawable.ic_action_reply);
1069				// 3rd item is placed after "copy" item
1070				menu.add(0, android.R.id.button1, 3, R.string.quote).setIcon(quoteResId)
1071						.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
1072			}
1073			return false;
1074		}
1075
1076		@Override
1077		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
1078			return false;
1079		}
1080
1081		@Override
1082		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
1083			if (item.getItemId() == android.R.id.button1) {
1084				int start = textView.getSelectionStart();
1085				int end = textView.getSelectionEnd();
1086				if (end > start) {
1087					String text = transformText(textView.getText(), start, end, false);
1088					if (onQuoteListener != null) {
1089						onQuoteListener.onQuote(text);
1090					}
1091					mode.finish();
1092				}
1093				return true;
1094			}
1095			return false;
1096		}
1097
1098		@Override
1099		public void onDestroyActionMode(ActionMode mode) {
1100		}
1101	}
1102
1103	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1104		private final WeakReference<ImageView> imageViewReference;
1105		private final int size;
1106		private Message message = null;
1107
1108		public BitmapWorkerTask(ImageView imageView, int size) {
1109			imageViewReference = new WeakReference<>(imageView);
1110			this.size = size;
1111		}
1112
1113		@Override
1114		protected Bitmap doInBackground(Message... params) {
1115			this.message = params[0];
1116			return activity.avatarService().get(this.message, size, isCancelled());
1117		}
1118
1119		@Override
1120		protected void onPostExecute(Bitmap bitmap) {
1121			if (bitmap != null && !isCancelled()) {
1122				final ImageView imageView = imageViewReference.get();
1123				if (imageView != null) {
1124					imageView.setImageBitmap(bitmap);
1125					imageView.setBackgroundColor(0x00000000);
1126				}
1127			}
1128		}
1129	}
1130}