MessageAdapter.java

   1package eu.siacs.conversations.ui.adapter;
   2
   3import android.Manifest;
   4import android.app.Activity;
   5import android.content.Intent;
   6import android.content.SharedPreferences;
   7import android.content.pm.PackageManager;
   8import android.graphics.Typeface;
   9import android.preference.PreferenceManager;
  10import android.support.v4.app.ActivityCompat;
  11import android.support.v4.content.ContextCompat;
  12import android.text.Spannable;
  13import android.text.SpannableString;
  14import android.text.SpannableStringBuilder;
  15import android.text.Spanned;
  16import android.text.format.DateUtils;
  17import android.text.style.ForegroundColorSpan;
  18import android.text.style.RelativeSizeSpan;
  19import android.text.style.StyleSpan;
  20import android.util.DisplayMetrics;
  21import android.view.ActionMode;
  22import android.view.Menu;
  23import android.view.MenuItem;
  24import android.view.View;
  25import android.view.ViewGroup;
  26import android.view.WindowManager;
  27import android.widget.ArrayAdapter;
  28import android.widget.Button;
  29import android.widget.ImageView;
  30import android.widget.LinearLayout;
  31import android.widget.RelativeLayout;
  32import android.widget.TextView;
  33import android.widget.Toast;
  34
  35import com.google.common.base.Strings;
  36
  37import java.net.URL;
  38import java.util.List;
  39import java.util.Locale;
  40import java.util.regex.Matcher;
  41import java.util.regex.Pattern;
  42
  43import eu.siacs.conversations.Config;
  44import eu.siacs.conversations.R;
  45import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  46import eu.siacs.conversations.entities.Account;
  47import eu.siacs.conversations.entities.Conversation;
  48import eu.siacs.conversations.entities.Conversational;
  49import eu.siacs.conversations.entities.DownloadableFile;
  50import eu.siacs.conversations.entities.Message;
  51import eu.siacs.conversations.entities.Message.FileParams;
  52import eu.siacs.conversations.entities.RtpSessionStatus;
  53import eu.siacs.conversations.entities.Transferable;
  54import eu.siacs.conversations.http.P1S3UrlStreamHandler;
  55import eu.siacs.conversations.persistance.FileBackend;
  56import eu.siacs.conversations.services.MessageArchiveService;
  57import eu.siacs.conversations.services.NotificationService;
  58import eu.siacs.conversations.ui.ConversationFragment;
  59import eu.siacs.conversations.ui.ConversationsActivity;
  60import eu.siacs.conversations.ui.XmppActivity;
  61import eu.siacs.conversations.ui.service.AudioPlayer;
  62import eu.siacs.conversations.ui.text.DividerSpan;
  63import eu.siacs.conversations.ui.text.QuoteSpan;
  64import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  65import eu.siacs.conversations.ui.util.MyLinkify;
  66import eu.siacs.conversations.ui.util.ViewUtil;
  67import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
  68import eu.siacs.conversations.ui.widget.CopyTextView;
  69import eu.siacs.conversations.ui.widget.ListSelectionManager;
  70import eu.siacs.conversations.utils.CryptoHelper;
  71import eu.siacs.conversations.utils.EmojiWrapper;
  72import eu.siacs.conversations.utils.Emoticons;
  73import eu.siacs.conversations.utils.GeoHelper;
  74import eu.siacs.conversations.utils.MessageUtils;
  75import eu.siacs.conversations.utils.StylingHelper;
  76import eu.siacs.conversations.utils.TimeFrameUtils;
  77import eu.siacs.conversations.utils.UIHelper;
  78import eu.siacs.conversations.xmpp.mam.MamReference;
  79import eu.siacs.conversations.xmpp.Jid;
  80
  81public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextView.CopyHandler {
  82
  83    public static final String DATE_SEPARATOR_BODY = "DATE_SEPARATOR";
  84    private static final int SENT = 0;
  85    private static final int RECEIVED = 1;
  86    private static final int STATUS = 2;
  87    private static final int DATE_SEPARATOR = 3;
  88    private static final int RTP_SESSION = 4;
  89    private final XmppActivity activity;
  90    private final ListSelectionManager listSelectionManager = new ListSelectionManager();
  91    private final AudioPlayer audioPlayer;
  92    private List<String> highlightedTerm = null;
  93    private DisplayMetrics metrics;
  94    private OnContactPictureClicked mOnContactPictureClickedListener;
  95    private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
  96    private boolean mUseGreenBackground = false;
  97    private OnQuoteListener onQuoteListener;
  98
  99    public MessageAdapter(XmppActivity activity, List<Message> messages) {
 100        super(activity, 0, messages);
 101        this.audioPlayer = new AudioPlayer(this);
 102        this.activity = activity;
 103        metrics = getContext().getResources().getDisplayMetrics();
 104        updatePreferences();
 105    }
 106
 107
 108    private static void resetClickListener(View... views) {
 109        for (View view : views) {
 110            view.setOnClickListener(null);
 111        }
 112    }
 113
 114    public void flagScreenOn() {
 115        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 116    }
 117
 118    public void flagScreenOff() {
 119        activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 120    }
 121
 122    public void setOnContactPictureClicked(OnContactPictureClicked listener) {
 123        this.mOnContactPictureClickedListener = listener;
 124    }
 125
 126    public Activity getActivity() {
 127        return activity;
 128    }
 129
 130    public void setOnContactPictureLongClicked(
 131            OnContactPictureLongClicked listener) {
 132        this.mOnContactPictureLongClickedListener = listener;
 133    }
 134
 135    public void setOnQuoteListener(OnQuoteListener listener) {
 136        this.onQuoteListener = listener;
 137    }
 138
 139    @Override
 140    public int getViewTypeCount() {
 141        return 5;
 142    }
 143
 144    private int getItemViewType(Message message) {
 145        if (message.getType() == Message.TYPE_STATUS) {
 146            if (DATE_SEPARATOR_BODY.equals(message.getBody())) {
 147                return DATE_SEPARATOR;
 148            } else {
 149                return STATUS;
 150            }
 151        } else if (message.getType() == Message.TYPE_RTP_SESSION) {
 152            return RTP_SESSION;
 153        } else if (message.getStatus() <= Message.STATUS_RECEIVED) {
 154            return RECEIVED;
 155        } else {
 156            return SENT;
 157        }
 158    }
 159
 160    @Override
 161    public int getItemViewType(int position) {
 162        return this.getItemViewType(getItem(position));
 163    }
 164
 165    private int getMessageTextColor(boolean onDark, boolean primary) {
 166        if (onDark) {
 167            return ContextCompat.getColor(activity, primary ? R.color.white : R.color.white70);
 168        } else {
 169            return ContextCompat.getColor(activity, primary ? R.color.black87 : R.color.black54);
 170        }
 171    }
 172
 173    private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
 174        String filesize = null;
 175        String info = null;
 176        boolean error = false;
 177        if (viewHolder.indicatorReceived != null) {
 178            viewHolder.indicatorReceived.setVisibility(View.GONE);
 179        }
 180
 181        if (viewHolder.edit_indicator != null) {
 182            if (message.edited()) {
 183                viewHolder.edit_indicator.setVisibility(View.VISIBLE);
 184                viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
 185                viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
 186            } else {
 187                viewHolder.edit_indicator.setVisibility(View.GONE);
 188            }
 189        }
 190        final Transferable transferable = message.getTransferable();
 191        boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
 192                && message.getMergedStatus() <= Message.STATUS_RECEIVED;
 193        if (message.isFileOrImage() || transferable != null || MessageUtils.unInitiatedButKnownSize(message)) {
 194            FileParams params = message.getFileParams();
 195            filesize = params.size > 0 ? UIHelper.filesizeToString(params.size) : null;
 196            if (transferable != null && (transferable.getStatus() == Transferable.STATUS_FAILED || transferable.getStatus() == Transferable.STATUS_CANCELLED)) {
 197                error = true;
 198            }
 199        }
 200        switch (message.getMergedStatus()) {
 201            case Message.STATUS_WAITING:
 202                info = getContext().getString(R.string.waiting);
 203                break;
 204            case Message.STATUS_UNSEND:
 205                if (transferable != null) {
 206                    info = getContext().getString(R.string.sending_file, transferable.getProgress());
 207                } else {
 208                    info = getContext().getString(R.string.sending);
 209                }
 210                break;
 211            case Message.STATUS_OFFERED:
 212                info = getContext().getString(R.string.offering);
 213                break;
 214            case Message.STATUS_SEND_RECEIVED:
 215            case Message.STATUS_SEND_DISPLAYED:
 216                viewHolder.indicatorReceived.setImageResource(darkBackground ? R.drawable.ic_done_white_18dp : R.drawable.ic_done_black_18dp);
 217                viewHolder.indicatorReceived.setAlpha(darkBackground ? 0.7f : 0.57f);
 218                viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
 219                break;
 220            case Message.STATUS_SEND_FAILED:
 221                final String errorMessage = message.getErrorMessage();
 222                if (Message.ERROR_MESSAGE_CANCELLED.equals(errorMessage)) {
 223                    info = getContext().getString(R.string.cancelled);
 224                } else if (errorMessage != null) {
 225                    final String[] errorParts = errorMessage.split("\\u001f", 2);
 226                    if (errorParts.length == 2) {
 227                        switch (errorParts[0]) {
 228                            case "file-too-large":
 229                                info = getContext().getString(R.string.file_too_large);
 230                                break;
 231                            default:
 232                                info = getContext().getString(R.string.send_failed);
 233                                break;
 234                        }
 235                    } else {
 236                        info = getContext().getString(R.string.send_failed);
 237                    }
 238                } else {
 239                    info = getContext().getString(R.string.send_failed);
 240                }
 241                error = true;
 242                break;
 243            default:
 244                if (multiReceived) {
 245                    info = UIHelper.getMessageDisplayName(message);
 246                }
 247                break;
 248        }
 249        if (error && type == SENT) {
 250            if (darkBackground) {
 251                viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_Warning_OnDark);
 252            } else {
 253                viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_Warning);
 254            }
 255        } else {
 256            if (darkBackground) {
 257                viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_OnDark);
 258            } else {
 259                viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption);
 260            }
 261            viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground, false));
 262        }
 263        if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 264            viewHolder.indicator.setVisibility(View.GONE);
 265        } else {
 266            boolean verified = false;
 267            if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
 268                final FingerprintStatus status = message.getConversation()
 269                        .getAccount().getAxolotlService().getFingerprintTrust(
 270                                message.getFingerprint());
 271                if (status != null && status.isVerified()) {
 272                    verified = true;
 273                }
 274            }
 275            if (verified) {
 276                viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_verified_user_white_18dp : R.drawable.ic_verified_user_black_18dp);
 277            } else {
 278                viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
 279            }
 280            if (darkBackground) {
 281                viewHolder.indicator.setAlpha(0.7f);
 282            } else {
 283                viewHolder.indicator.setAlpha(0.57f);
 284            }
 285            viewHolder.indicator.setVisibility(View.VISIBLE);
 286        }
 287
 288        final String formattedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getMergedTimeSent());
 289        final String bodyLanguage = message.getBodyLanguage();
 290        final String bodyLanguageInfo = bodyLanguage == null ? "" : String.format(" \u00B7 %s", bodyLanguage.toUpperCase(Locale.US));
 291        if (message.getStatus() <= Message.STATUS_RECEIVED) {
 292            if ((filesize != null) && (info != null)) {
 293                viewHolder.time.setText(formattedTime + " \u00B7 " + filesize + " \u00B7 " + info + bodyLanguageInfo);
 294            } else if ((filesize == null) && (info != null)) {
 295                viewHolder.time.setText(formattedTime + " \u00B7 " + info + bodyLanguageInfo);
 296            } else if ((filesize != null) && (info == null)) {
 297                viewHolder.time.setText(formattedTime + " \u00B7 " + filesize + bodyLanguageInfo);
 298            } else {
 299                viewHolder.time.setText(formattedTime + bodyLanguageInfo);
 300            }
 301        } else {
 302            if ((filesize != null) && (info != null)) {
 303                viewHolder.time.setText(filesize + " \u00B7 " + info + bodyLanguageInfo);
 304            } else if ((filesize == null) && (info != null)) {
 305                if (error) {
 306                    viewHolder.time.setText(info + " \u00B7 " + formattedTime + bodyLanguageInfo);
 307                } else {
 308                    viewHolder.time.setText(info);
 309                }
 310            } else if ((filesize != null) && (info == null)) {
 311                viewHolder.time.setText(filesize + " \u00B7 " + formattedTime + bodyLanguageInfo);
 312            } else {
 313                viewHolder.time.setText(formattedTime + bodyLanguageInfo);
 314            }
 315        }
 316    }
 317
 318    private void displayInfoMessage(ViewHolder viewHolder, CharSequence text, boolean darkBackground) {
 319        viewHolder.download_button.setVisibility(View.GONE);
 320        viewHolder.audioPlayer.setVisibility(View.GONE);
 321        viewHolder.image.setVisibility(View.GONE);
 322        viewHolder.messageBody.setVisibility(View.VISIBLE);
 323        viewHolder.messageBody.setText(text);
 324        if (darkBackground) {
 325            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Secondary_OnDark);
 326        } else {
 327            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Secondary);
 328        }
 329        viewHolder.messageBody.setTextIsSelectable(false);
 330    }
 331
 332    private void displayEmojiMessage(final ViewHolder viewHolder, final String body, final boolean darkBackground) {
 333        viewHolder.download_button.setVisibility(View.GONE);
 334        viewHolder.audioPlayer.setVisibility(View.GONE);
 335        viewHolder.image.setVisibility(View.GONE);
 336        viewHolder.messageBody.setVisibility(View.VISIBLE);
 337        if (darkBackground) {
 338            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Emoji_OnDark);
 339        } else {
 340            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_Emoji);
 341        }
 342        Spannable span = new SpannableString(body);
 343        float size = Emoticons.isEmoji(body) ? 3.0f : 2.0f;
 344        span.setSpan(new RelativeSizeSpan(size), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 345        viewHolder.messageBody.setText(EmojiWrapper.transform(span));
 346    }
 347
 348    private void applyQuoteSpan(SpannableStringBuilder body, int start, int end, boolean darkBackground) {
 349        if (start > 1 && !"\n\n".equals(body.subSequence(start - 2, start).toString())) {
 350            body.insert(start++, "\n");
 351            body.setSpan(new DividerSpan(false), start - 2, start, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 352            end++;
 353        }
 354        if (end < body.length() - 1 && !"\n\n".equals(body.subSequence(end, end + 2).toString())) {
 355            body.insert(end, "\n");
 356            body.setSpan(new DividerSpan(false), end, end + 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 357        }
 358        int color = darkBackground ? this.getMessageTextColor(darkBackground, false)
 359                : ContextCompat.getColor(activity, R.color.green700_desaturated);
 360        DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
 361        body.setSpan(new QuoteSpan(color, metrics), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 362    }
 363
 364    /**
 365     * Applies QuoteSpan to group of lines which starts with > or » characters.
 366     * Appends likebreaks and applies DividerSpan to them to show a padding between quote and text.
 367     */
 368    private boolean handleTextQuotes(SpannableStringBuilder body, boolean darkBackground) {
 369        boolean startsWithQuote = false;
 370        char previous = '\n';
 371        int lineStart = -1;
 372        int lineTextStart = -1;
 373        int quoteStart = -1;
 374        for (int i = 0; i <= body.length(); i++) {
 375            char current = body.length() > i ? body.charAt(i) : '\n';
 376            if (lineStart == -1) {
 377                if (previous == '\n') {
 378                    if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body, i))
 379                            || current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body, i)) {
 380                        // Line start with quote
 381                        lineStart = i;
 382                        if (quoteStart == -1) quoteStart = i;
 383                        if (i == 0) startsWithQuote = true;
 384                    } else if (quoteStart >= 0) {
 385                        // Line start without quote, apply spans there
 386                        applyQuoteSpan(body, quoteStart, i - 1, darkBackground);
 387                        quoteStart = -1;
 388                    }
 389                }
 390            } else {
 391                // Remove extra spaces between > and first character in the line
 392                // > character will be removed too
 393                if (current != ' ' && lineTextStart == -1) {
 394                    lineTextStart = i;
 395                }
 396                if (current == '\n') {
 397                    body.delete(lineStart, lineTextStart);
 398                    i -= lineTextStart - lineStart;
 399                    if (i == lineStart) {
 400                        // Avoid empty lines because span over empty line can be hidden
 401                        body.insert(i++, " ");
 402                    }
 403                    lineStart = -1;
 404                    lineTextStart = -1;
 405                }
 406            }
 407            previous = current;
 408        }
 409        if (quoteStart >= 0) {
 410            // Apply spans to finishing open quote
 411            applyQuoteSpan(body, quoteStart, body.length(), darkBackground);
 412        }
 413        return startsWithQuote;
 414    }
 415
 416    private void displayTextMessage(final ViewHolder viewHolder, final Message message, boolean darkBackground, int type) {
 417        viewHolder.download_button.setVisibility(View.GONE);
 418        viewHolder.image.setVisibility(View.GONE);
 419        viewHolder.audioPlayer.setVisibility(View.GONE);
 420        viewHolder.messageBody.setVisibility(View.VISIBLE);
 421
 422        if (darkBackground) {
 423            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1_OnDark);
 424        } else {
 425            viewHolder.messageBody.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Body1);
 426        }
 427        viewHolder.messageBody.setHighlightColor(ContextCompat.getColor(activity, darkBackground
 428                ? (type == SENT || !mUseGreenBackground ? R.color.black26 : R.color.grey800) : R.color.grey500));
 429        viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
 430
 431        if (message.getBody() != null) {
 432            final String nick = UIHelper.getMessageDisplayName(message);
 433            SpannableStringBuilder body = message.getMergedBody();
 434            boolean hasMeCommand = message.hasMeCommand();
 435            if (hasMeCommand) {
 436                body = body.replace(0, Message.ME_COMMAND.length(), nick + " ");
 437            }
 438            if (body.length() > Config.MAX_DISPLAY_MESSAGE_CHARS) {
 439                body = new SpannableStringBuilder(body, 0, Config.MAX_DISPLAY_MESSAGE_CHARS);
 440                body.append("\u2026");
 441            }
 442            Message.MergeSeparator[] mergeSeparators = body.getSpans(0, body.length(), Message.MergeSeparator.class);
 443            for (Message.MergeSeparator mergeSeparator : mergeSeparators) {
 444                int start = body.getSpanStart(mergeSeparator);
 445                int end = body.getSpanEnd(mergeSeparator);
 446                body.setSpan(new DividerSpan(true), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 447            }
 448            boolean startsWithQuote = handleTextQuotes(body, darkBackground);
 449            if (!message.isPrivateMessage()) {
 450                if (hasMeCommand) {
 451                    body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, nick.length(),
 452                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 453                }
 454            } else {
 455                String privateMarker;
 456                if (message.getStatus() <= Message.STATUS_RECEIVED) {
 457                    privateMarker = activity.getString(R.string.private_message);
 458                } else {
 459                    Jid cp = message.getCounterpart();
 460                    privateMarker = activity.getString(R.string.private_message_to, Strings.nullToEmpty(cp == null ? null : cp.getResource()));
 461                }
 462                body.insert(0, privateMarker);
 463                int privateMarkerIndex = privateMarker.length();
 464                if (startsWithQuote) {
 465                    body.insert(privateMarkerIndex, "\n\n");
 466                    body.setSpan(new DividerSpan(false), privateMarkerIndex, privateMarkerIndex + 2,
 467                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 468                } else {
 469                    body.insert(privateMarkerIndex, " ");
 470                }
 471                body.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground, false)), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 472                body.setSpan(new StyleSpan(Typeface.BOLD), 0, privateMarkerIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 473                if (hasMeCommand) {
 474                    body.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), privateMarkerIndex + 1,
 475                            privateMarkerIndex + 1 + nick.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 476                }
 477            }
 478            if (message.getConversation().getMode() == Conversation.MODE_MULTI && message.getStatus() == Message.STATUS_RECEIVED) {
 479                if (message.getConversation() instanceof Conversation) {
 480                    final Conversation conversation = (Conversation) message.getConversation();
 481                    Pattern pattern = NotificationService.generateNickHighlightPattern(conversation.getMucOptions().getActualNick());
 482                    Matcher matcher = pattern.matcher(body);
 483                    while (matcher.find()) {
 484                        body.setSpan(new StyleSpan(Typeface.BOLD), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 485                    }
 486                }
 487            }
 488            Matcher matcher = Emoticons.getEmojiPattern(body).matcher(body);
 489            while (matcher.find()) {
 490                if (matcher.start() < matcher.end()) {
 491                    body.setSpan(new RelativeSizeSpan(1.2f), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 492                }
 493            }
 494
 495            StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
 496            if (highlightedTerm != null) {
 497                StylingHelper.highlight(activity, body, highlightedTerm, StylingHelper.isDarkText(viewHolder.messageBody));
 498            }
 499            MyLinkify.addLinks(body, true);
 500            viewHolder.messageBody.setAutoLinkMask(0);
 501            viewHolder.messageBody.setText(EmojiWrapper.transform(body));
 502            viewHolder.messageBody.setTextIsSelectable(true);
 503            viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
 504            listSelectionManager.onUpdate(viewHolder.messageBody, message);
 505        } else {
 506            viewHolder.messageBody.setText("");
 507            viewHolder.messageBody.setTextIsSelectable(false);
 508        }
 509    }
 510
 511    private void displayDownloadableMessage(ViewHolder viewHolder, final Message message, String text, final boolean darkBackground) {
 512        toggleWhisperInfo(viewHolder, message, darkBackground);
 513        viewHolder.image.setVisibility(View.GONE);
 514        viewHolder.audioPlayer.setVisibility(View.GONE);
 515        viewHolder.download_button.setVisibility(View.VISIBLE);
 516        viewHolder.download_button.setText(text);
 517        viewHolder.download_button.setOnClickListener(v -> ConversationFragment.downloadFile(activity, message));
 518    }
 519
 520    private void displayOpenableMessage(ViewHolder viewHolder, final Message message, final boolean darkBackground) {
 521        toggleWhisperInfo(viewHolder, message, darkBackground);
 522        viewHolder.image.setVisibility(View.GONE);
 523        viewHolder.audioPlayer.setVisibility(View.GONE);
 524        viewHolder.download_button.setVisibility(View.VISIBLE);
 525        viewHolder.download_button.setText(activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message)));
 526        viewHolder.download_button.setOnClickListener(v -> openDownloadable(message));
 527    }
 528
 529    private void displayLocationMessage(ViewHolder viewHolder, final Message message, final boolean darkBackground) {
 530        toggleWhisperInfo(viewHolder, message, darkBackground);
 531        viewHolder.image.setVisibility(View.GONE);
 532        viewHolder.audioPlayer.setVisibility(View.GONE);
 533        viewHolder.download_button.setVisibility(View.VISIBLE);
 534        viewHolder.download_button.setText(R.string.show_location);
 535        viewHolder.download_button.setOnClickListener(v -> showLocation(message));
 536    }
 537
 538    private void displayAudioMessage(ViewHolder viewHolder, Message message, boolean darkBackground) {
 539        toggleWhisperInfo(viewHolder, message, darkBackground);
 540        viewHolder.image.setVisibility(View.GONE);
 541        viewHolder.download_button.setVisibility(View.GONE);
 542        final RelativeLayout audioPlayer = viewHolder.audioPlayer;
 543        audioPlayer.setVisibility(View.VISIBLE);
 544        AudioPlayer.ViewHolder.get(audioPlayer).setDarkBackground(darkBackground);
 545        this.audioPlayer.init(audioPlayer, message);
 546    }
 547
 548    private void displayMediaPreviewMessage(ViewHolder viewHolder, final Message message, final boolean darkBackground) {
 549        toggleWhisperInfo(viewHolder, message, darkBackground);
 550        viewHolder.download_button.setVisibility(View.GONE);
 551        viewHolder.audioPlayer.setVisibility(View.GONE);
 552        viewHolder.image.setVisibility(View.VISIBLE);
 553        final FileParams params = message.getFileParams();
 554        final double target = metrics.density * 288;
 555        final int scaledW;
 556        final int scaledH;
 557        if (Math.max(params.height, params.width) * metrics.density <= target) {
 558            scaledW = (int) (params.width * metrics.density);
 559            scaledH = (int) (params.height * metrics.density);
 560        } else if (Math.max(params.height, params.width) <= target) {
 561            scaledW = params.width;
 562            scaledH = params.height;
 563        } else if (params.width <= params.height) {
 564            scaledW = (int) (params.width / ((double) params.height / target));
 565            scaledH = (int) target;
 566        } else {
 567            scaledW = (int) target;
 568            scaledH = (int) (params.height / ((double) params.width / target));
 569        }
 570        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(scaledW, scaledH);
 571        layoutParams.setMargins(0, (int) (metrics.density * 4), 0, (int) (metrics.density * 4));
 572        viewHolder.image.setLayoutParams(layoutParams);
 573        activity.loadBitmap(message, viewHolder.image);
 574        viewHolder.image.setOnClickListener(v -> openDownloadable(message));
 575    }
 576
 577    private void toggleWhisperInfo(ViewHolder viewHolder, final Message message, final boolean darkBackground) {
 578        if (message.isPrivateMessage()) {
 579            final String privateMarker;
 580            if (message.getStatus() <= Message.STATUS_RECEIVED) {
 581                privateMarker = activity.getString(R.string.private_message);
 582            } else {
 583                Jid cp = message.getCounterpart();
 584                privateMarker = activity.getString(R.string.private_message_to, Strings.nullToEmpty(cp == null ? null : cp.getResource()));
 585            }
 586            final SpannableString body = new SpannableString(privateMarker);
 587            body.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground, false)), 0, privateMarker.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 588            body.setSpan(new StyleSpan(Typeface.BOLD), 0, privateMarker.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 589            viewHolder.messageBody.setText(body);
 590            viewHolder.messageBody.setVisibility(View.VISIBLE);
 591        } else {
 592            viewHolder.messageBody.setVisibility(View.GONE);
 593        }
 594    }
 595
 596    private void loadMoreMessages(Conversation conversation) {
 597        conversation.setLastClearHistory(0, null);
 598        activity.xmppConnectionService.updateConversation(conversation);
 599        conversation.setHasMessagesLeftOnServer(true);
 600        conversation.setFirstMamReference(null);
 601        long timestamp = conversation.getLastMessageTransmitted().getTimestamp();
 602        if (timestamp == 0) {
 603            timestamp = System.currentTimeMillis();
 604        }
 605        conversation.messagesLoaded.set(true);
 606        MessageArchiveService.Query query = activity.xmppConnectionService.getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
 607        if (query != null) {
 608            Toast.makeText(activity, R.string.fetching_history_from_server, Toast.LENGTH_LONG).show();
 609        } else {
 610            Toast.makeText(activity, R.string.not_fetching_history_retention_period, Toast.LENGTH_SHORT).show();
 611        }
 612    }
 613
 614    @Override
 615    public View getView(int position, View view, ViewGroup parent) {
 616        final Message message = getItem(position);
 617        final boolean omemoEncryption = message.getEncryption() == Message.ENCRYPTION_AXOLOTL;
 618        final boolean isInValidSession = message.isValidInSession() && (!omemoEncryption || message.isTrusted());
 619        final Conversational conversation = message.getConversation();
 620        final Account account = conversation.getAccount();
 621        final int type = getItemViewType(position);
 622        ViewHolder viewHolder;
 623        if (view == null) {
 624            viewHolder = new ViewHolder();
 625            switch (type) {
 626                case DATE_SEPARATOR:
 627                    view = activity.getLayoutInflater().inflate(R.layout.message_date_bubble, parent, false);
 628                    viewHolder.status_message = view.findViewById(R.id.message_body);
 629                    viewHolder.message_box = view.findViewById(R.id.message_box);
 630                    viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 631                    break;
 632                case RTP_SESSION:
 633                    view = activity.getLayoutInflater().inflate(R.layout.message_rtp_session, parent, false);
 634                    viewHolder.status_message = view.findViewById(R.id.message_body);
 635                    viewHolder.message_box = view.findViewById(R.id.message_box);
 636                    viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 637                    break;
 638                case SENT:
 639                    view = activity.getLayoutInflater().inflate(R.layout.message_sent, parent, false);
 640                    viewHolder.message_box = view.findViewById(R.id.message_box);
 641                    viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 642                    viewHolder.download_button = view.findViewById(R.id.download_button);
 643                    viewHolder.indicator = view.findViewById(R.id.security_indicator);
 644                    viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 645                    viewHolder.image = view.findViewById(R.id.message_image);
 646                    viewHolder.messageBody = view.findViewById(R.id.message_body);
 647                    viewHolder.time = view.findViewById(R.id.message_time);
 648                    viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 649                    viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 650                    break;
 651                case RECEIVED:
 652                    view = activity.getLayoutInflater().inflate(R.layout.message_received, parent, false);
 653                    viewHolder.message_box = view.findViewById(R.id.message_box);
 654                    viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 655                    viewHolder.download_button = view.findViewById(R.id.download_button);
 656                    viewHolder.indicator = view.findViewById(R.id.security_indicator);
 657                    viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
 658                    viewHolder.image = view.findViewById(R.id.message_image);
 659                    viewHolder.messageBody = view.findViewById(R.id.message_body);
 660                    viewHolder.time = view.findViewById(R.id.message_time);
 661                    viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
 662                    viewHolder.encryption = view.findViewById(R.id.message_encryption);
 663                    viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
 664                    break;
 665                case STATUS:
 666                    view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
 667                    viewHolder.contact_picture = view.findViewById(R.id.message_photo);
 668                    viewHolder.status_message = view.findViewById(R.id.status_message);
 669                    viewHolder.load_more_messages = view.findViewById(R.id.load_more_messages);
 670                    break;
 671                default:
 672                    throw new AssertionError("Unknown view type");
 673            }
 674            if (viewHolder.messageBody != null) {
 675                listSelectionManager.onCreate(viewHolder.messageBody,
 676                        new MessageBodyActionModeCallback(viewHolder.messageBody));
 677                viewHolder.messageBody.setCopyHandler(this);
 678            }
 679            view.setTag(viewHolder);
 680        } else {
 681            viewHolder = (ViewHolder) view.getTag();
 682            if (viewHolder == null) {
 683                return view;
 684            }
 685        }
 686
 687        boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
 688
 689        if (type == DATE_SEPARATOR) {
 690            if (UIHelper.today(message.getTimeSent())) {
 691                viewHolder.status_message.setText(R.string.today);
 692            } else if (UIHelper.yesterday(message.getTimeSent())) {
 693                viewHolder.status_message.setText(R.string.yesterday);
 694            } else {
 695                viewHolder.status_message.setText(DateUtils.formatDateTime(activity, message.getTimeSent(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR));
 696            }
 697            viewHolder.message_box.setBackgroundResource(activity.isDarkTheme() ? R.drawable.date_bubble_grey : R.drawable.date_bubble_white);
 698            return view;
 699        } else if (type == RTP_SESSION) {
 700            final boolean isDarkTheme = activity.isDarkTheme();
 701            final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
 702            final RtpSessionStatus rtpSessionStatus = RtpSessionStatus.of(message.getBody());
 703            final long duration = rtpSessionStatus.duration;
 704            if (received) {
 705                if (duration > 0) {
 706                    viewHolder.status_message.setText(activity.getString(R.string.incoming_call_duration, TimeFrameUtils.resolve(activity, duration)));
 707                } else if (rtpSessionStatus.successful) {
 708                    viewHolder.status_message.setText(R.string.incoming_call);
 709                } else {
 710                    viewHolder.status_message.setText(activity.getString(R.string.incoming_call_duration, UIHelper.readableTimeDifferenceFull(activity, message.getTimeSent())));
 711                }
 712            } else {
 713                if (duration > 0) {
 714                    viewHolder.status_message.setText(activity.getString(R.string.outgoing_call_duration, TimeFrameUtils.resolve(activity, duration)));
 715                } else {
 716                    viewHolder.status_message.setText(R.string.outgoing_call);
 717                }
 718            }
 719            viewHolder.indicatorReceived.setImageResource(RtpSessionStatus.getDrawable(received, rtpSessionStatus.successful, isDarkTheme));
 720            viewHolder.indicatorReceived.setAlpha(isDarkTheme ? 0.7f : 0.57f);
 721            viewHolder.message_box.setBackgroundResource(isDarkTheme ? R.drawable.date_bubble_grey : R.drawable.date_bubble_white);
 722            return view;
 723        } else if (type == STATUS) {
 724            if ("LOAD_MORE".equals(message.getBody())) {
 725                viewHolder.status_message.setVisibility(View.GONE);
 726                viewHolder.contact_picture.setVisibility(View.GONE);
 727                viewHolder.load_more_messages.setVisibility(View.VISIBLE);
 728                viewHolder.load_more_messages.setOnClickListener(v -> loadMoreMessages((Conversation) message.getConversation()));
 729            } else {
 730                viewHolder.status_message.setVisibility(View.VISIBLE);
 731                viewHolder.load_more_messages.setVisibility(View.GONE);
 732                viewHolder.status_message.setText(message.getBody());
 733                boolean showAvatar;
 734                if (conversation.getMode() == Conversation.MODE_SINGLE) {
 735                    showAvatar = true;
 736                    AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar_on_status_message);
 737                } else if (message.getCounterpart() != null || message.getTrueCounterpart() != null || (message.getCounterparts() != null && message.getCounterparts().size() > 0)) {
 738                    showAvatar = true;
 739                    AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar_on_status_message);
 740                } else {
 741                    showAvatar = false;
 742                }
 743                if (showAvatar) {
 744                    viewHolder.contact_picture.setAlpha(0.5f);
 745                    viewHolder.contact_picture.setVisibility(View.VISIBLE);
 746                } else {
 747                    viewHolder.contact_picture.setVisibility(View.GONE);
 748                }
 749            }
 750            return view;
 751        } else {
 752            AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar);
 753        }
 754
 755        resetClickListener(viewHolder.message_box, viewHolder.messageBody);
 756
 757        viewHolder.contact_picture.setOnClickListener(v -> {
 758            if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
 759                MessageAdapter.this.mOnContactPictureClickedListener
 760                        .onContactPictureClicked(message);
 761            }
 762
 763        });
 764        viewHolder.contact_picture.setOnLongClickListener(v -> {
 765            if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
 766                MessageAdapter.this.mOnContactPictureLongClickedListener
 767                        .onContactPictureLongClicked(v, message);
 768                return true;
 769            } else {
 770                return false;
 771            }
 772        });
 773
 774        final Transferable transferable = message.getTransferable();
 775        final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(message);
 776        if (unInitiatedButKnownSize || message.isDeleted() || (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING)) {
 777            if (unInitiatedButKnownSize || transferable != null && transferable.getStatus() == Transferable.STATUS_OFFER) {
 778                displayDownloadableMessage(viewHolder, message, activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)), darkBackground);
 779            } else if (transferable != null && transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
 780                displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)), darkBackground);
 781            } else {
 782                displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first, darkBackground);
 783            }
 784        } else if (message.isFileOrImage() && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
 785            if (message.getFileParams().width > 0 && message.getFileParams().height > 0) {
 786                displayMediaPreviewMessage(viewHolder, message, darkBackground);
 787            } else if (message.getFileParams().runtime > 0) {
 788                displayAudioMessage(viewHolder, message, darkBackground);
 789            } else {
 790                displayOpenableMessage(viewHolder, message, darkBackground);
 791            }
 792        } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 793            if (account.isPgpDecryptionServiceConnected()) {
 794                if (conversation instanceof Conversation && !account.hasPendingPgpIntent((Conversation) conversation)) {
 795                    displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
 796                } else {
 797                    displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
 798                }
 799            } else {
 800                displayInfoMessage(viewHolder, activity.getString(R.string.install_openkeychain), darkBackground);
 801                viewHolder.message_box.setOnClickListener(this::promptOpenKeychainInstall);
 802                viewHolder.messageBody.setOnClickListener(this::promptOpenKeychainInstall);
 803            }
 804        } else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 805            displayInfoMessage(viewHolder, activity.getString(R.string.decryption_failed), darkBackground);
 806        } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
 807            displayInfoMessage(viewHolder, activity.getString(R.string.not_encrypted_for_this_device), darkBackground);
 808        } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
 809            displayInfoMessage(viewHolder, activity.getString(R.string.omemo_decryption_failed), darkBackground);
 810        } else {
 811            if (message.isGeoUri()) {
 812                displayLocationMessage(viewHolder, message, darkBackground);
 813            } else if (message.bodyIsOnlyEmojis() && message.getType() != Message.TYPE_PRIVATE) {
 814                displayEmojiMessage(viewHolder, message.getBody().trim(), darkBackground);
 815            } else if (message.treatAsDownloadable()) {
 816                try {
 817                    URL url = new URL(message.getBody());
 818                    if (P1S3UrlStreamHandler.PROTOCOL_NAME.equalsIgnoreCase(url.getProtocol())) {
 819                        displayDownloadableMessage(viewHolder,
 820                                message,
 821                                activity.getString(R.string.check_x_filesize,
 822                                        UIHelper.getFileDescriptionString(activity, message)),
 823                                darkBackground);
 824                    } else {
 825                        displayDownloadableMessage(viewHolder,
 826                                message,
 827                                activity.getString(R.string.check_x_filesize_on_host,
 828                                        UIHelper.getFileDescriptionString(activity, message),
 829                                        url.getHost()),
 830                                darkBackground);
 831                    }
 832                } catch (Exception e) {
 833                    displayDownloadableMessage(viewHolder,
 834                            message,
 835                            activity.getString(R.string.check_x_filesize,
 836                                    UIHelper.getFileDescriptionString(activity, message)),
 837                            darkBackground);
 838                }
 839            } else {
 840                displayTextMessage(viewHolder, message, darkBackground, type);
 841            }
 842        }
 843
 844        if (type == RECEIVED) {
 845            if (isInValidSession) {
 846                int bubble;
 847                if (!mUseGreenBackground) {
 848                    bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
 849                } else {
 850                    bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
 851                }
 852                viewHolder.message_box.setBackgroundResource(bubble);
 853                viewHolder.encryption.setVisibility(View.GONE);
 854            } else {
 855                viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
 856                viewHolder.encryption.setVisibility(View.VISIBLE);
 857                if (omemoEncryption && !message.isTrusted()) {
 858                    viewHolder.encryption.setText(R.string.not_trusted);
 859                } else {
 860                    viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
 861                }
 862            }
 863        }
 864
 865        displayStatus(viewHolder, message, type, darkBackground);
 866
 867        return view;
 868    }
 869
 870    private void promptOpenKeychainInstall(View view) {
 871        activity.showInstallPgpDialog();
 872    }
 873
 874    @Override
 875    public void notifyDataSetChanged() {
 876        listSelectionManager.onBeforeNotifyDataSetChanged();
 877        super.notifyDataSetChanged();
 878        listSelectionManager.onAfterNotifyDataSetChanged();
 879    }
 880
 881    private String transformText(CharSequence text, int start, int end, boolean forCopy) {
 882        SpannableStringBuilder builder = new SpannableStringBuilder(text);
 883        Object copySpan = new Object();
 884        builder.setSpan(copySpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 885        DividerSpan[] dividerSpans = builder.getSpans(0, builder.length(), DividerSpan.class);
 886        for (DividerSpan dividerSpan : dividerSpans) {
 887            builder.replace(builder.getSpanStart(dividerSpan), builder.getSpanEnd(dividerSpan),
 888                    dividerSpan.isLarge() ? "\n\n" : "\n");
 889        }
 890        start = builder.getSpanStart(copySpan);
 891        end = builder.getSpanEnd(copySpan);
 892        if (start == -1 || end == -1) return "";
 893        builder = new SpannableStringBuilder(builder, start, end);
 894        if (forCopy) {
 895            QuoteSpan[] quoteSpans = builder.getSpans(0, builder.length(), QuoteSpan.class);
 896            for (QuoteSpan quoteSpan : quoteSpans) {
 897                builder.insert(builder.getSpanStart(quoteSpan), "> ");
 898            }
 899        }
 900        return builder.toString();
 901    }
 902
 903    @Override
 904    public String transformTextForCopy(CharSequence text, int start, int end) {
 905        if (text instanceof Spanned) {
 906            return transformText(text, start, end, true);
 907        } else {
 908            return text.toString().substring(start, end);
 909        }
 910    }
 911
 912    public FileBackend getFileBackend() {
 913        return activity.xmppConnectionService.getFileBackend();
 914    }
 915
 916    public void stopAudioPlayer() {
 917        audioPlayer.stop();
 918    }
 919
 920    public void unregisterListenerInAudioPlayer() {
 921        audioPlayer.unregisterListener();
 922    }
 923
 924    public void startStopPending() {
 925        audioPlayer.startStopPending();
 926    }
 927
 928    public void openDownloadable(Message message) {
 929        if (ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 930            ConversationFragment.registerPendingMessage(activity, message);
 931            ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, ConversationsActivity.REQUEST_OPEN_MESSAGE);
 932            return;
 933        }
 934        final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 935        ViewUtil.view(activity, file);
 936    }
 937
 938    private void showLocation(Message message) {
 939        for (Intent intent : GeoHelper.createGeoIntentsFromMessage(activity, message)) {
 940            if (intent.resolveActivity(getContext().getPackageManager()) != null) {
 941                getContext().startActivity(intent);
 942                return;
 943            }
 944        }
 945        Toast.makeText(activity, R.string.no_application_found_to_display_location, Toast.LENGTH_SHORT).show();
 946    }
 947
 948    public void updatePreferences() {
 949        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
 950        this.mUseGreenBackground = p.getBoolean("use_green_background", activity.getResources().getBoolean(R.bool.use_green_background));
 951    }
 952
 953
 954    public void setHighlightedTerm(List<String> terms) {
 955        this.highlightedTerm = terms == null ? null : StylingHelper.filterHighlightedWords(terms);
 956    }
 957
 958    public interface OnQuoteListener {
 959        void onQuote(String text);
 960    }
 961
 962    public interface OnContactPictureClicked {
 963        void onContactPictureClicked(Message message);
 964    }
 965
 966    public interface OnContactPictureLongClicked {
 967        void onContactPictureLongClicked(View v, Message message);
 968    }
 969
 970    private static class ViewHolder {
 971
 972        public Button load_more_messages;
 973        public ImageView edit_indicator;
 974        public RelativeLayout audioPlayer;
 975        protected LinearLayout message_box;
 976        protected Button download_button;
 977        protected ImageView image;
 978        protected ImageView indicator;
 979        protected ImageView indicatorReceived;
 980        protected TextView time;
 981        protected CopyTextView messageBody;
 982        protected ImageView contact_picture;
 983        protected TextView status_message;
 984        protected TextView encryption;
 985    }
 986
 987
 988    private class MessageBodyActionModeCallback implements ActionMode.Callback {
 989
 990        private final TextView textView;
 991
 992        public MessageBodyActionModeCallback(TextView textView) {
 993            this.textView = textView;
 994        }
 995
 996        @Override
 997        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
 998            if (onQuoteListener != null) {
 999                int quoteResId = activity.getThemeResource(R.attr.icon_quote, R.drawable.ic_action_reply);
1000                // 3rd item is placed after "copy" item
1001                menu.add(0, android.R.id.button1, 3, R.string.quote).setIcon(quoteResId)
1002                        .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
1003            }
1004            return false;
1005        }
1006
1007        @Override
1008        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
1009            return false;
1010        }
1011
1012        @Override
1013        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
1014            if (item.getItemId() == android.R.id.button1) {
1015                int start = textView.getSelectionStart();
1016                int end = textView.getSelectionEnd();
1017                if (end > start) {
1018                    String text = transformText(textView.getText(), start, end, false);
1019                    if (onQuoteListener != null) {
1020                        onQuoteListener.onQuote(text);
1021                    }
1022                    mode.finish();
1023                }
1024                return true;
1025            }
1026            return false;
1027        }
1028
1029        @Override
1030        public void onDestroyActionMode(ActionMode mode) {
1031        }
1032    }
1033}