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