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