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