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