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