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 java.net.URL;
 36import java.util.List;
 37import java.util.regex.Matcher;
 38import java.util.regex.Pattern;
 39
 40import eu.siacs.conversations.Config;
 41import eu.siacs.conversations.R;
 42import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
 43import eu.siacs.conversations.entities.Account;
 44import eu.siacs.conversations.entities.Conversation;
 45import eu.siacs.conversations.entities.Conversational;
 46import eu.siacs.conversations.entities.DownloadableFile;
 47import eu.siacs.conversations.entities.Message;
 48import eu.siacs.conversations.entities.Message.FileParams;
 49import eu.siacs.conversations.entities.Transferable;
 50import eu.siacs.conversations.http.P1S3UrlStreamHandler;
 51import eu.siacs.conversations.persistance.FileBackend;
 52import eu.siacs.conversations.services.MessageArchiveService;
 53import eu.siacs.conversations.services.NotificationService;
 54import eu.siacs.conversations.ui.ConversationFragment;
 55import eu.siacs.conversations.ui.ConversationsActivity;
 56import eu.siacs.conversations.ui.XmppActivity;
 57import eu.siacs.conversations.ui.service.AudioPlayer;
 58import eu.siacs.conversations.ui.text.DividerSpan;
 59import eu.siacs.conversations.ui.text.QuoteSpan;
 60import eu.siacs.conversations.ui.util.AvatarWorkerTask;
 61import eu.siacs.conversations.ui.util.MyLinkify;
 62import eu.siacs.conversations.ui.util.ViewUtil;
 63import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
 64import eu.siacs.conversations.ui.widget.CopyTextView;
 65import eu.siacs.conversations.ui.widget.ListSelectionManager;
 66import eu.siacs.conversations.utils.CryptoHelper;
 67import eu.siacs.conversations.utils.EmojiWrapper;
 68import eu.siacs.conversations.utils.Emoticons;
 69import eu.siacs.conversations.utils.GeoHelper;
 70import eu.siacs.conversations.utils.StylingHelper;
 71import eu.siacs.conversations.utils.UIHelper;
 72import eu.siacs.conversations.xmpp.mam.MamReference;
 73
 74public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextView.CopyHandler {
 75
 76	public static final String DATE_SEPARATOR_BODY = "DATE_SEPARATOR";
 77	private static final int SENT = 0;
 78	private static final int RECEIVED = 1;
 79	private static final int STATUS = 2;
 80	private static final int DATE_SEPARATOR = 3;
 81	private final XmppActivity activity;
 82	private final ListSelectionManager listSelectionManager = new ListSelectionManager();
 83	private final AudioPlayer audioPlayer;
 84	private List<String> highlightedTerm = null;
 85	private DisplayMetrics metrics;
 86	private OnContactPictureClicked mOnContactPictureClickedListener;
 87	private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
 88	private boolean mIndicateReceived = false;
 89	private boolean mUseGreenBackground = false;
 90	private OnQuoteListener onQuoteListener;
 91	public MessageAdapter(XmppActivity activity, List<Message> messages) {
 92		super(activity, 0, messages);
 93		this.audioPlayer = new AudioPlayer(this);
 94		this.activity = activity;
 95		metrics = getContext().getResources().getDisplayMetrics();
 96		updatePreferences();
 97	}
 98
 99
100
101	private static void resetClickListener(View... views) {
102		for (View view : views) {
103			view.setOnClickListener(null);
104		}
105	}
106
107	public void flagScreenOn() {
108		activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
109	}
110
111	public void flagScreenOff() {
112		activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
113	}
114
115	public void setOnContactPictureClicked(OnContactPictureClicked listener) {
116		this.mOnContactPictureClickedListener = listener;
117	}
118
119	public Activity getActivity() {
120		return activity;
121	}
122
123	public void setOnContactPictureLongClicked(
124			OnContactPictureLongClicked listener) {
125		this.mOnContactPictureLongClickedListener = listener;
126	}
127
128	public void setOnQuoteListener(OnQuoteListener listener) {
129		this.onQuoteListener = listener;
130	}
131
132	@Override
133	public int getViewTypeCount() {
134		return 4;
135	}
136
137	private int getItemViewType(Message message) {
138		if (message.getType() == Message.TYPE_STATUS) {
139			if (DATE_SEPARATOR_BODY.equals(message.getBody())) {
140				return DATE_SEPARATOR;
141			} else {
142				return STATUS;
143			}
144		} else if (message.getStatus() <= Message.STATUS_RECEIVED) {
145			return RECEIVED;
146		}
147
148		return SENT;
149	}
150
151	@Override
152	public int getItemViewType(int position) {
153		return this.getItemViewType(getItem(position));
154	}
155
156	private int getMessageTextColor(boolean onDark, boolean primary) {
157		if (onDark) {
158			return ContextCompat.getColor(activity, primary ? R.color.white : R.color.white70);
159		} else {
160			return ContextCompat.getColor(activity, primary ? R.color.black87 : R.color.black54);
161		}
162	}
163
164	private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
165		String filesize = null;
166		String info = null;
167		boolean error = false;
168		if (viewHolder.indicatorReceived != null) {
169			viewHolder.indicatorReceived.setVisibility(View.GONE);
170		}
171
172		if (viewHolder.edit_indicator != null) {
173			if (message.edited()) {
174				viewHolder.edit_indicator.setVisibility(View.VISIBLE);
175				viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
176				viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
177			} else {
178				viewHolder.edit_indicator.setVisibility(View.GONE);
179			}
180		}
181		final Transferable transferable = message.getTransferable();
182		boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
183				&& message.getMergedStatus() <= Message.STATUS_RECEIVED;
184		if (message.isFileOrImage() || transferable != null) {
185			FileParams params = message.getFileParams();
186			if (params.size > (1.5 * 1024 * 1024)) {
187				filesize = Math.round(params.size * 1f / (1024 * 1024)) + " MiB";
188			} else if (params.size >= 1024) {
189				filesize = Math.round(params.size * 1f / 1024) + " KiB";
190			} else if (params.size > 0) {
191				filesize = params.size + " B";
192			}
193			if (transferable != null && transferable.getStatus() == Transferable.STATUS_FAILED) {
194				error = true;
195			}
196		}
197		switch (message.getMergedStatus()) {
198			case Message.STATUS_WAITING:
199				info = getContext().getString(R.string.waiting);
200				break;
201			case Message.STATUS_UNSEND:
202				if (transferable != null) {
203					info = getContext().getString(R.string.sending_file, transferable.getProgress());
204				} else {
205					info = getContext().getString(R.string.sending);
206				}
207				break;
208			case Message.STATUS_OFFERED:
209				info = getContext().getString(R.string.offering);
210				break;
211			case Message.STATUS_SEND_RECEIVED:
212				if (mIndicateReceived) {
213					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
214				}
215				break;
216			case Message.STATUS_SEND_DISPLAYED:
217				if (mIndicateReceived) {
218					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
219				}
220				break;
221			case Message.STATUS_SEND_FAILED:
222				final String errorMessage = message.getErrorMessage();
223				if (Message.ERROR_MESSAGE_CANCELLED.equals(errorMessage)) {
224					info = getContext().getString(R.string.cancelled);
225				} else if (errorMessage != null) {
226					final String[] errorParts = errorMessage.split("\\u001f", 2);
227					if (errorParts.length == 2) {
228						switch (errorParts[0]) {
229							case "file-too-large":
230								info = getContext().getString(R.string.file_too_large);
231								break;
232							default:
233								info = getContext().getString(R.string.send_failed);
234								break;
235						}
236					} else {
237						info = getContext().getString(R.string.send_failed);
238					}
239				} else {
240					info = getContext().getString(R.string.send_failed);
241				}
242				error = true;
243				break;
244			default:
245				if (multiReceived) {
246					info = UIHelper.getMessageDisplayName(message);
247				}
248				break;
249		}
250		if (error && type == SENT) {
251			viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_Warning);
252		} else {
253			if (darkBackground) {
254				viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption_OnDark);
255			} else {
256				viewHolder.time.setTextAppearance(getContext(), R.style.TextAppearance_Conversations_Caption);
257			}
258			viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground, false));
259		}
260		if (message.getEncryption() == Message.ENCRYPTION_NONE) {
261			viewHolder.indicator.setVisibility(View.GONE);
262		} else {
263			boolean verified = false;
264			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
265				final FingerprintStatus status = message.getConversation()
266						.getAccount().getAxolotlService().getFingerprintTrust(
267								message.getFingerprint());
268				if (status != null && status.isVerified()) {
269					verified = true;
270				}
271			}
272			if (verified) {
273				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_verified_user_white_18dp : R.drawable.ic_verified_user_black_18dp);
274			} else {
275				viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
276			}
277			if (darkBackground) {
278				viewHolder.indicator.setAlpha(0.7f);
279			} else {
280				viewHolder.indicator.setAlpha(0.57f);
281			}
282			viewHolder.indicator.setVisibility(View.VISIBLE);
283		}
284
285		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(), message.getMergedTimeSent());
286		if (message.getStatus() <= Message.STATUS_RECEIVED) {
287			if ((filesize != null) && (info != null)) {
288				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize + " \u00B7 " + info);
289			} else if ((filesize == null) && (info != null)) {
290				viewHolder.time.setText(formatedTime + " \u00B7 " + info);
291			} else if ((filesize != null) && (info == null)) {
292				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize);
293			} else {
294				viewHolder.time.setText(formatedTime);
295			}
296		} else {
297			if ((filesize != null) && (info != null)) {
298				viewHolder.time.setText(filesize + " \u00B7 " + info);
299			} else if ((filesize == null) && (info != null)) {
300				if (error) {
301					viewHolder.time.setText(info + " \u00B7 " + formatedTime);
302				} else {
303					viewHolder.time.setText(info);
304				}
305			} else if ((filesize != null) && (info == null)) {
306				viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
307			} else {
308				viewHolder.time.setText(formatedTime);
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.getType() != Message.TYPE_PRIVATE) {
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					final String to;
455					if (message.getCounterpart() != null) {
456						to = message.getCounterpart().getResource();
457					} else {
458						to = "";
459					}
460					privateMarker = activity.getString(R.string.private_message_to, to);
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) {
512		viewHolder.image.setVisibility(View.GONE);
513		viewHolder.messageBody.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) {
521		viewHolder.image.setVisibility(View.GONE);
522		viewHolder.messageBody.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) {
530		viewHolder.image.setVisibility(View.GONE);
531		viewHolder.messageBody.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		viewHolder.image.setVisibility(View.GONE);
540		viewHolder.messageBody.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 displayImageMessage(ViewHolder viewHolder, final Message message) {
549		viewHolder.download_button.setVisibility(View.GONE);
550		viewHolder.messageBody.setVisibility(View.GONE);
551		viewHolder.audioPlayer.setVisibility(View.GONE);
552		viewHolder.image.setVisibility(View.VISIBLE);
553		FileParams params = message.getFileParams();
554		double target = metrics.density * 288;
555		int scaledW;
556		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 loadMoreMessages(Conversation conversation) {
578		conversation.setLastClearHistory(0, null);
579		activity.xmppConnectionService.updateConversation(conversation);
580		conversation.setHasMessagesLeftOnServer(true);
581		conversation.setFirstMamReference(null);
582		long timestamp = conversation.getLastMessageTransmitted().getTimestamp();
583		if (timestamp == 0) {
584			timestamp = System.currentTimeMillis();
585		}
586		conversation.messagesLoaded.set(true);
587		MessageArchiveService.Query query = activity.xmppConnectionService.getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
588		if (query != null) {
589			Toast.makeText(activity, R.string.fetching_history_from_server, Toast.LENGTH_LONG).show();
590		} else {
591			Toast.makeText(activity, R.string.not_fetching_history_retention_period, Toast.LENGTH_SHORT).show();
592		}
593	}
594
595	@Override
596	public View getView(int position, View view, ViewGroup parent) {
597		final Message message = getItem(position);
598		final boolean omemoEncryption = message.getEncryption() == Message.ENCRYPTION_AXOLOTL;
599		final boolean isInValidSession = message.isValidInSession() && (!omemoEncryption || message.isTrusted());
600		final Conversational conversation = message.getConversation();
601		final Account account = conversation.getAccount();
602		final int type = getItemViewType(position);
603		ViewHolder viewHolder;
604		if (view == null) {
605			viewHolder = new ViewHolder();
606			switch (type) {
607				case DATE_SEPARATOR:
608					view = activity.getLayoutInflater().inflate(R.layout.message_date_bubble, parent, false);
609					viewHolder.status_message = view.findViewById(R.id.message_body);
610					viewHolder.message_box = view.findViewById(R.id.message_box);
611					break;
612				case SENT:
613					view = activity.getLayoutInflater().inflate(R.layout.message_sent, parent, false);
614					viewHolder.message_box = view.findViewById(R.id.message_box);
615					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
616					viewHolder.download_button = view.findViewById(R.id.download_button);
617					viewHolder.indicator = view.findViewById(R.id.security_indicator);
618					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
619					viewHolder.image = view.findViewById(R.id.message_image);
620					viewHolder.messageBody = view.findViewById(R.id.message_body);
621					viewHolder.time = view.findViewById(R.id.message_time);
622					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
623					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
624					break;
625				case RECEIVED:
626					view = activity.getLayoutInflater().inflate(R.layout.message_received, parent, false);
627					viewHolder.message_box = view.findViewById(R.id.message_box);
628					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
629					viewHolder.download_button = view.findViewById(R.id.download_button);
630					viewHolder.indicator = view.findViewById(R.id.security_indicator);
631					viewHolder.edit_indicator = view.findViewById(R.id.edit_indicator);
632					viewHolder.image = view.findViewById(R.id.message_image);
633					viewHolder.messageBody = view.findViewById(R.id.message_body);
634					viewHolder.time = view.findViewById(R.id.message_time);
635					viewHolder.indicatorReceived = view.findViewById(R.id.indicator_received);
636					viewHolder.encryption = view.findViewById(R.id.message_encryption);
637					viewHolder.audioPlayer = view.findViewById(R.id.audio_player);
638					break;
639				case STATUS:
640					view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
641					viewHolder.contact_picture = view.findViewById(R.id.message_photo);
642					viewHolder.status_message = view.findViewById(R.id.status_message);
643					viewHolder.load_more_messages = view.findViewById(R.id.load_more_messages);
644					break;
645				default:
646					throw new AssertionError("Unknown view type");
647			}
648			if (viewHolder.messageBody != null) {
649				listSelectionManager.onCreate(viewHolder.messageBody,
650						new MessageBodyActionModeCallback(viewHolder.messageBody));
651				viewHolder.messageBody.setCopyHandler(this);
652			}
653			view.setTag(viewHolder);
654		} else {
655			viewHolder = (ViewHolder) view.getTag();
656			if (viewHolder == null) {
657				return view;
658			}
659		}
660
661		boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
662
663		if (type == DATE_SEPARATOR) {
664			if (UIHelper.today(message.getTimeSent())) {
665				viewHolder.status_message.setText(R.string.today);
666			} else if (UIHelper.yesterday(message.getTimeSent())) {
667				viewHolder.status_message.setText(R.string.yesterday);
668			} else {
669				viewHolder.status_message.setText(DateUtils.formatDateTime(activity, message.getTimeSent(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR));
670			}
671			viewHolder.message_box.setBackgroundResource(activity.isDarkTheme() ? R.drawable.date_bubble_grey : R.drawable.date_bubble_white);
672			return view;
673		} else if (type == STATUS) {
674			if ("LOAD_MORE".equals(message.getBody())) {
675				viewHolder.status_message.setVisibility(View.GONE);
676				viewHolder.contact_picture.setVisibility(View.GONE);
677				viewHolder.load_more_messages.setVisibility(View.VISIBLE);
678				viewHolder.load_more_messages.setOnClickListener(v -> loadMoreMessages((Conversation) message.getConversation()));
679			} else {
680				viewHolder.status_message.setVisibility(View.VISIBLE);
681				viewHolder.load_more_messages.setVisibility(View.GONE);
682				viewHolder.status_message.setText(message.getBody());
683				boolean showAvatar;
684				if (conversation.getMode() == Conversation.MODE_SINGLE) {
685					showAvatar = true;
686					AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar_on_status_message);
687				} else if (message.getCounterpart() != null || message.getTrueCounterpart() != null || (message.getCounterparts() != null && message.getCounterparts().size() > 0)) {
688					showAvatar = true;
689					AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar_on_status_message);
690				} else {
691					showAvatar = false;
692				}
693				if (showAvatar) {
694					viewHolder.contact_picture.setAlpha(0.5f);
695					viewHolder.contact_picture.setVisibility(View.VISIBLE);
696				} else {
697					viewHolder.contact_picture.setVisibility(View.GONE);
698				}
699			}
700			return view;
701		} else {
702			AvatarWorkerTask.loadAvatar(message, viewHolder.contact_picture, R.dimen.avatar);
703		}
704
705		resetClickListener(viewHolder.message_box, viewHolder.messageBody);
706
707		viewHolder.contact_picture.setOnClickListener(v -> {
708			if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
709				MessageAdapter.this.mOnContactPictureClickedListener
710						.onContactPictureClicked(message);
711			}
712
713		});
714		viewHolder.contact_picture.setOnLongClickListener(v -> {
715			if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
716				MessageAdapter.this.mOnContactPictureLongClickedListener
717						.onContactPictureLongClicked(v, message);
718				return true;
719			} else {
720				return false;
721			}
722		});
723
724		final Transferable transferable = message.getTransferable();
725		if (message.isDeleted() || (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING)) {
726			if (transferable != null && transferable.getStatus() == Transferable.STATUS_OFFER) {
727				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)));
728			} else if (transferable != null && transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
729				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)));
730			} else {
731				displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first, darkBackground);
732			}
733		} else if (message.isFileOrImage() && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
734			if (message.getFileParams().width > 0 && message.getFileParams().height > 0) {
735				displayImageMessage(viewHolder, message);
736			} else if (message.getFileParams().runtime > 0) {
737				displayAudioMessage(viewHolder, message, darkBackground);
738			} else {
739				displayOpenableMessage(viewHolder, message);
740			}
741		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
742			if (account.isPgpDecryptionServiceConnected()) {
743				if (conversation instanceof Conversation && !account.hasPendingPgpIntent((Conversation) conversation)) {
744					displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
745				} else {
746					displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
747				}
748			} else {
749				displayInfoMessage(viewHolder, activity.getString(R.string.install_openkeychain), darkBackground);
750				viewHolder.message_box.setOnClickListener(this::promptOpenKeychainInstall);
751				viewHolder.messageBody.setOnClickListener(this::promptOpenKeychainInstall);
752			}
753		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
754			displayInfoMessage(viewHolder, activity.getString(R.string.decryption_failed), darkBackground);
755		} else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
756			displayInfoMessage(viewHolder, activity.getString(R.string.not_encrypted_for_this_device), darkBackground);
757		} else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
758			displayInfoMessage(viewHolder, activity.getString(R.string.omemo_decryption_failed), darkBackground);
759		} else {
760			if (message.isGeoUri()) {
761				displayLocationMessage(viewHolder, message);
762			} else if (message.bodyIsOnlyEmojis() && message.getType() != Message.TYPE_PRIVATE) {
763				displayEmojiMessage(viewHolder, message.getBody().trim(), darkBackground);
764			} else if (message.treatAsDownloadable()) {
765				try {
766					URL url = new URL(message.getBody());
767					if (P1S3UrlStreamHandler.PROTOCOL_NAME.equalsIgnoreCase(url.getProtocol())) {
768						displayDownloadableMessage(viewHolder,
769								message,
770								activity.getString(R.string.check_x_filesize,
771										UIHelper.getFileDescriptionString(activity, message)));
772					} else {
773						displayDownloadableMessage(viewHolder,
774								message,
775								activity.getString(R.string.check_x_filesize_on_host,
776										UIHelper.getFileDescriptionString(activity, message),
777										url.getHost()));
778					}
779				} catch (Exception e) {
780					displayDownloadableMessage(viewHolder,
781							message,
782							activity.getString(R.string.check_x_filesize,
783									UIHelper.getFileDescriptionString(activity, message)));
784				}
785			} else {
786				displayTextMessage(viewHolder, message, darkBackground, type);
787			}
788		}
789
790		if (type == RECEIVED) {
791			if (isInValidSession) {
792				int bubble;
793				if (!mUseGreenBackground) {
794					bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
795				} else {
796					bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
797				}
798				viewHolder.message_box.setBackgroundResource(bubble);
799				viewHolder.encryption.setVisibility(View.GONE);
800			} else {
801				viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
802				viewHolder.encryption.setVisibility(View.VISIBLE);
803				if (omemoEncryption && !message.isTrusted()) {
804					viewHolder.encryption.setText(R.string.not_trusted);
805				} else {
806					viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
807				}
808			}
809		}
810
811		displayStatus(viewHolder, message, type, darkBackground);
812
813		return view;
814	}
815
816	private void promptOpenKeychainInstall(View view) {
817		activity.showInstallPgpDialog();
818	}
819
820	@Override
821	public void notifyDataSetChanged() {
822		listSelectionManager.onBeforeNotifyDataSetChanged();
823		super.notifyDataSetChanged();
824		listSelectionManager.onAfterNotifyDataSetChanged();
825	}
826
827	private String transformText(CharSequence text, int start, int end, boolean forCopy) {
828		SpannableStringBuilder builder = new SpannableStringBuilder(text);
829		Object copySpan = new Object();
830		builder.setSpan(copySpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
831		DividerSpan[] dividerSpans = builder.getSpans(0, builder.length(), DividerSpan.class);
832		for (DividerSpan dividerSpan : dividerSpans) {
833			builder.replace(builder.getSpanStart(dividerSpan), builder.getSpanEnd(dividerSpan),
834					dividerSpan.isLarge() ? "\n\n" : "\n");
835		}
836		start = builder.getSpanStart(copySpan);
837		end = builder.getSpanEnd(copySpan);
838		if (start == -1 || end == -1) return "";
839		builder = new SpannableStringBuilder(builder, start, end);
840		if (forCopy) {
841			QuoteSpan[] quoteSpans = builder.getSpans(0, builder.length(), QuoteSpan.class);
842			for (QuoteSpan quoteSpan : quoteSpans) {
843				builder.insert(builder.getSpanStart(quoteSpan), "> ");
844			}
845		}
846		return builder.toString();
847	}
848
849	@Override
850	public String transformTextForCopy(CharSequence text, int start, int end) {
851		if (text instanceof Spanned) {
852			return transformText(text, start, end, true);
853		} else {
854			return text.toString().substring(start, end);
855		}
856	}
857
858	public FileBackend getFileBackend() {
859		return activity.xmppConnectionService.getFileBackend();
860	}
861
862	public void stopAudioPlayer() {
863		audioPlayer.stop();
864	}
865
866	public void unregisterListenerInAudioPlayer() {
867		audioPlayer.unregisterListener();
868	}
869
870	public void startStopPending() {
871		audioPlayer.startStopPending();
872	}
873
874	public void openDownloadable(Message message) {
875		if (ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
876			ConversationFragment.registerPendingMessage(activity, message);
877			ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, ConversationsActivity.REQUEST_OPEN_MESSAGE);
878			return;
879		}
880		final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
881		ViewUtil.view(activity, file);
882	}
883
884	private void showLocation(Message message) {
885		for (Intent intent : GeoHelper.createGeoIntentsFromMessage(activity, message)) {
886			if (intent.resolveActivity(getContext().getPackageManager()) != null) {
887				getContext().startActivity(intent);
888				return;
889			}
890		}
891		Toast.makeText(activity, R.string.no_application_found_to_display_location, Toast.LENGTH_SHORT).show();
892	}
893
894	public void updatePreferences() {
895		SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
896		this.mIndicateReceived = p.getBoolean("indicate_received", activity.getResources().getBoolean(R.bool.indicate_received));
897		this.mUseGreenBackground = p.getBoolean("use_green_background", activity.getResources().getBoolean(R.bool.use_green_background));
898	}
899
900
901	public void setHighlightedTerm(List<String> terms) {
902		this.highlightedTerm = terms == null ? null : StylingHelper.filterHighlightedWords(terms);
903	}
904
905	public interface OnQuoteListener {
906		void onQuote(String text);
907	}
908
909	public interface OnContactPictureClicked {
910		void onContactPictureClicked(Message message);
911	}
912
913	public interface OnContactPictureLongClicked {
914		void onContactPictureLongClicked(View v, Message message);
915	}
916
917	private static class ViewHolder {
918
919		public Button load_more_messages;
920		public ImageView edit_indicator;
921		public RelativeLayout audioPlayer;
922		protected LinearLayout message_box;
923		protected Button download_button;
924		protected ImageView image;
925		protected ImageView indicator;
926		protected ImageView indicatorReceived;
927		protected TextView time;
928		protected CopyTextView messageBody;
929		protected ImageView contact_picture;
930		protected TextView status_message;
931		protected TextView encryption;
932	}
933
934
935	private class MessageBodyActionModeCallback implements ActionMode.Callback {
936
937		private final TextView textView;
938
939		public MessageBodyActionModeCallback(TextView textView) {
940			this.textView = textView;
941		}
942
943		@Override
944		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
945			if (onQuoteListener != null) {
946				int quoteResId = activity.getThemeResource(R.attr.icon_quote, R.drawable.ic_action_reply);
947				// 3rd item is placed after "copy" item
948				menu.add(0, android.R.id.button1, 3, R.string.quote).setIcon(quoteResId)
949						.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
950			}
951			return false;
952		}
953
954		@Override
955		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
956			return false;
957		}
958
959		@Override
960		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
961			if (item.getItemId() == android.R.id.button1) {
962				int start = textView.getSelectionStart();
963				int end = textView.getSelectionEnd();
964				if (end > start) {
965					String text = transformText(textView.getText(), start, end, false);
966					if (onQuoteListener != null) {
967						onQuoteListener.onQuote(text);
968					}
969					mode.finish();
970				}
971				return true;
972			}
973			return false;
974		}
975
976		@Override
977		public void onDestroyActionMode(ActionMode mode) {
978		}
979	}
980}