MessageAdapter.java

  1package eu.siacs.conversations.ui.adapter;
  2
  3import android.content.ActivityNotFoundException;
  4import android.content.Intent;
  5import android.content.pm.PackageManager;
  6import android.content.pm.ResolveInfo;
  7import android.content.res.Resources;
  8import android.graphics.Bitmap;
  9import android.graphics.Typeface;
 10import android.graphics.drawable.BitmapDrawable;
 11import android.graphics.drawable.Drawable;
 12import android.net.Uri;
 13import android.os.AsyncTask;
 14import android.os.Build;
 15import android.support.v4.content.FileProvider;
 16import android.text.Spannable;
 17import android.text.SpannableString;
 18import android.text.SpannableStringBuilder;
 19import android.text.Spanned;
 20import android.text.style.ForegroundColorSpan;
 21import android.text.style.RelativeSizeSpan;
 22import android.text.style.StyleSpan;
 23import android.text.util.Linkify;
 24import android.util.DisplayMetrics;
 25import android.util.Patterns;
 26import android.view.View;
 27import android.view.View.OnClickListener;
 28import android.view.View.OnLongClickListener;
 29import android.view.ViewGroup;
 30import android.widget.ArrayAdapter;
 31import android.widget.Button;
 32import android.widget.ImageView;
 33import android.widget.LinearLayout;
 34import android.widget.TextView;
 35import android.widget.Toast;
 36
 37import java.lang.ref.WeakReference;
 38import java.net.URL;
 39import java.util.List;
 40import java.util.concurrent.RejectedExecutionException;
 41import java.util.regex.MatchResult;
 42import java.util.regex.Matcher;
 43import java.util.regex.Pattern;
 44
 45import eu.siacs.conversations.Config;
 46import eu.siacs.conversations.R;
 47import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
 48import eu.siacs.conversations.entities.Account;
 49import eu.siacs.conversations.entities.Conversation;
 50import eu.siacs.conversations.entities.DownloadableFile;
 51import eu.siacs.conversations.entities.Message;
 52import eu.siacs.conversations.entities.Message.FileParams;
 53import eu.siacs.conversations.entities.Transferable;
 54import eu.siacs.conversations.ui.ConversationActivity;
 55import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
 56import eu.siacs.conversations.utils.CryptoHelper;
 57import eu.siacs.conversations.utils.GeoHelper;
 58import eu.siacs.conversations.utils.UIHelper;
 59
 60public class MessageAdapter extends ArrayAdapter<Message> {
 61
 62	private static final int SENT = 0;
 63	private static final int RECEIVED = 1;
 64	private static final int STATUS = 2;
 65	private static final Pattern XMPP_PATTERN = Pattern
 66			.compile("xmpp\\:(?:(?:["
 67					+ Patterns.GOOD_IRI_CHAR
 68					+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
 69					+ "|(?:\\%[a-fA-F0-9]{2}))+");
 70
 71	private ConversationActivity activity;
 72
 73	private DisplayMetrics metrics;
 74
 75	private OnContactPictureClicked mOnContactPictureClickedListener;
 76	private OnContactPictureLongClicked mOnContactPictureLongClickedListener;
 77
 78	private OnLongClickListener openContextMenu = new OnLongClickListener() {
 79
 80		@Override
 81		public boolean onLongClick(View v) {
 82			v.showContextMenu();
 83			return true;
 84		}
 85	};
 86	private boolean mIndicateReceived = false;
 87	private boolean mUseGreenBackground = false;
 88
 89	public MessageAdapter(ConversationActivity activity, List<Message> messages) {
 90		super(activity, 0, messages);
 91		this.activity = activity;
 92		metrics = getContext().getResources().getDisplayMetrics();
 93		updatePreferences();
 94	}
 95
 96	public void setOnContactPictureClicked(OnContactPictureClicked listener) {
 97		this.mOnContactPictureClickedListener = listener;
 98	}
 99
100	public void setOnContactPictureLongClicked(
101			OnContactPictureLongClicked listener) {
102		this.mOnContactPictureLongClickedListener = listener;
103			}
104
105	@Override
106	public int getViewTypeCount() {
107		return 3;
108	}
109
110	public int getItemViewType(Message message) {
111		if (message.getType() == Message.TYPE_STATUS) {
112			return STATUS;
113		} else if (message.getStatus() <= Message.STATUS_RECEIVED) {
114			return RECEIVED;
115		}
116
117		return SENT;
118	}
119
120	@Override
121	public int getItemViewType(int position) {
122		return this.getItemViewType(getItem(position));
123	}
124
125	private int getMessageTextColor(boolean onDark, boolean primary) {
126		if (onDark) {
127			return activity.getResources().getColor(primary ? R.color.white : R.color.white70);
128		} else {
129			return activity.getResources().getColor(primary ? R.color.black87 : R.color.black54);
130		}
131	}
132
133	private void displayStatus(ViewHolder viewHolder, Message message, int type, boolean darkBackground) {
134		String filesize = null;
135		String info = null;
136		boolean error = false;
137		if (viewHolder.indicatorReceived != null) {
138			viewHolder.indicatorReceived.setVisibility(View.GONE);
139		}
140
141		if (viewHolder.edit_indicator != null) {
142			if (message.edited()) {
143				viewHolder.edit_indicator.setVisibility(View.VISIBLE);
144				viewHolder.edit_indicator.setImageResource(darkBackground ? R.drawable.ic_mode_edit_white_18dp : R.drawable.ic_mode_edit_black_18dp);
145				viewHolder.edit_indicator.setAlpha(darkBackground ? 0.7f : 0.57f);
146			} else {
147				viewHolder.edit_indicator.setVisibility(View.GONE);
148			}
149		}
150		boolean multiReceived = message.getConversation().getMode() == Conversation.MODE_MULTI
151			&& message.getMergedStatus() <= Message.STATUS_RECEIVED;
152		if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE || message.getTransferable() != null) {
153			FileParams params = message.getFileParams();
154			if (params.size > (1.5 * 1024 * 1024)) {
155				filesize = params.size / (1024 * 1024)+ " MiB";
156			} else if (params.size > 0) {
157				filesize = params.size / 1024 + " KiB";
158			}
159			if (message.getTransferable() != null && message.getTransferable().getStatus() == Transferable.STATUS_FAILED) {
160				error = true;
161			}
162		}
163		switch (message.getMergedStatus()) {
164			case Message.STATUS_WAITING:
165				info = getContext().getString(R.string.waiting);
166				break;
167			case Message.STATUS_UNSEND:
168				Transferable d = message.getTransferable();
169				if (d!=null) {
170					info = getContext().getString(R.string.sending_file,d.getProgress());
171				} else {
172					info = getContext().getString(R.string.sending);
173				}
174				break;
175			case Message.STATUS_OFFERED:
176				info = getContext().getString(R.string.offering);
177				break;
178			case Message.STATUS_SEND_RECEIVED:
179				if (mIndicateReceived) {
180					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
181				}
182				break;
183			case Message.STATUS_SEND_DISPLAYED:
184				if (mIndicateReceived) {
185					viewHolder.indicatorReceived.setVisibility(View.VISIBLE);
186				}
187				break;
188			case Message.STATUS_SEND_FAILED:
189				info = getContext().getString(R.string.send_failed);
190				error = true;
191				break;
192			default:
193				if (multiReceived) {
194					info = UIHelper.getMessageDisplayName(message);
195				}
196				break;
197		}
198		if (error && type == SENT) {
199			viewHolder.time.setTextColor(activity.getWarningTextColor());
200		} else {
201			viewHolder.time.setTextColor(this.getMessageTextColor(darkBackground,false));
202		}
203		if (message.getEncryption() == Message.ENCRYPTION_NONE) {
204			viewHolder.indicator.setVisibility(View.GONE);
205		} else {
206			viewHolder.indicator.setImageResource(darkBackground ? R.drawable.ic_lock_white_18dp : R.drawable.ic_lock_black_18dp);
207			viewHolder.indicator.setVisibility(View.VISIBLE);
208			if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
209				XmppAxolotlSession.Trust trust = message.getConversation()
210						.getAccount().getAxolotlService().getFingerprintTrust(
211								message.getFingerprint());
212
213				if(trust == null || (!trust.trusted() && !trust.trustedInactive())) {
214					viewHolder.indicator.setColorFilter(activity.getWarningTextColor());
215					viewHolder.indicator.setAlpha(1.0f);
216				} else {
217					viewHolder.indicator.clearColorFilter();
218					if (darkBackground) {
219						viewHolder.indicator.setAlpha(0.7f);
220					} else {
221						viewHolder.indicator.setAlpha(0.57f);
222					}
223				}
224			} else {
225				viewHolder.indicator.clearColorFilter();
226				if (darkBackground) {
227					viewHolder.indicator.setAlpha(0.7f);
228				} else {
229					viewHolder.indicator.setAlpha(0.57f);
230				}
231			}
232		}
233
234		String formatedTime = UIHelper.readableTimeDifferenceFull(getContext(),
235				message.getMergedTimeSent());
236		if (message.getStatus() <= Message.STATUS_RECEIVED) {
237			if ((filesize != null) && (info != null)) {
238				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize +" \u00B7 " + info);
239			} else if ((filesize == null) && (info != null)) {
240				viewHolder.time.setText(formatedTime + " \u00B7 " + info);
241			} else if ((filesize != null) && (info == null)) {
242				viewHolder.time.setText(formatedTime + " \u00B7 " + filesize);
243			} else {
244				viewHolder.time.setText(formatedTime);
245			}
246		} else {
247			if ((filesize != null) && (info != null)) {
248				viewHolder.time.setText(filesize + " \u00B7 " + info);
249			} else if ((filesize == null) && (info != null)) {
250				if (error) {
251					viewHolder.time.setText(info + " \u00B7 " + formatedTime);
252				} else {
253					viewHolder.time.setText(info);
254				}
255			} else if ((filesize != null) && (info == null)) {
256				viewHolder.time.setText(filesize + " \u00B7 " + formatedTime);
257			} else {
258				viewHolder.time.setText(formatedTime);
259			}
260		}
261	}
262
263	private void displayInfoMessage(ViewHolder viewHolder, String text, boolean darkBackground) {
264		if (viewHolder.download_button != null) {
265			viewHolder.download_button.setVisibility(View.GONE);
266		}
267		viewHolder.image.setVisibility(View.GONE);
268		viewHolder.messageBody.setVisibility(View.VISIBLE);
269		viewHolder.messageBody.setText(text);
270		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
271		viewHolder.messageBody.setTypeface(null, Typeface.ITALIC);
272		viewHolder.messageBody.setTextIsSelectable(false);
273	}
274
275	private void displayDecryptionFailed(ViewHolder viewHolder, boolean darkBackground) {
276		if (viewHolder.download_button != null) {
277			viewHolder.download_button.setVisibility(View.GONE);
278		}
279		viewHolder.image.setVisibility(View.GONE);
280		viewHolder.messageBody.setVisibility(View.VISIBLE);
281		viewHolder.messageBody.setText(getContext().getString(
282				R.string.decryption_failed));
283		viewHolder.messageBody.setTextColor(getMessageTextColor(darkBackground, false));
284		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
285		viewHolder.messageBody.setTextIsSelectable(false);
286	}
287
288	private void displayHeartMessage(final ViewHolder viewHolder, final String body) {
289		if (viewHolder.download_button != null) {
290			viewHolder.download_button.setVisibility(View.GONE);
291		}
292		viewHolder.image.setVisibility(View.GONE);
293		viewHolder.messageBody.setVisibility(View.VISIBLE);
294		viewHolder.messageBody.setIncludeFontPadding(false);
295		Spannable span = new SpannableString(body);
296		span.setSpan(new RelativeSizeSpan(4.0f), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
297		span.setSpan(new ForegroundColorSpan(activity.getWarningTextColor()), 0, body.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
298		viewHolder.messageBody.setText(span);
299	}
300
301	private void displayTextMessage(final ViewHolder viewHolder, final Message message, boolean darkBackground, int type) {
302		if (viewHolder.download_button != null) {
303			viewHolder.download_button.setVisibility(View.GONE);
304		}
305		viewHolder.image.setVisibility(View.GONE);
306		viewHolder.messageBody.setVisibility(View.VISIBLE);
307		viewHolder.messageBody.setIncludeFontPadding(true);
308		if (message.getBody() != null) {
309			final String nick = UIHelper.getMessageDisplayName(message);
310			String body;
311			try {
312				body = message.getMergedBody().replaceAll("^" + Message.ME_COMMAND, nick + " ");
313			} catch (ArrayIndexOutOfBoundsException e) {
314				body = message.getMergedBody();
315			}
316			if (body.length() > Config.MAX_DISPLAY_MESSAGE_CHARS) {
317				body = body.substring(0, Config.MAX_DISPLAY_MESSAGE_CHARS)+"\u2026";
318			}
319			Spannable formattedBody = new SpannableString(body);
320			int i = body.indexOf(Message.MERGE_SEPARATOR);
321			while(i >= 0) {
322				final int end = i + Message.MERGE_SEPARATOR.length();
323				formattedBody.setSpan(new RelativeSizeSpan(0.3f),i,end,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
324				i = body.indexOf(Message.MERGE_SEPARATOR,end);
325			}
326			if (message.getType() != Message.TYPE_PRIVATE) {
327				if (message.hasMeCommand()) {
328					formattedBody.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 0, nick.length(),
329							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
330				}
331			} else {
332				String privateMarker;
333				if (message.getStatus() <= Message.STATUS_RECEIVED) {
334					privateMarker = activity
335						.getString(R.string.private_message);
336				} else {
337					final String to;
338					if (message.getCounterpart() != null) {
339						to = message.getCounterpart().getResourcepart();
340					} else {
341						to = "";
342					}
343					privateMarker = activity.getString(R.string.private_message_to, to);
344				}
345				formattedBody = new SpannableStringBuilder().append(privateMarker).append(' ').append(formattedBody);
346				formattedBody.setSpan(new ForegroundColorSpan(getMessageTextColor(darkBackground,false)), 0, privateMarker
347						.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
348				formattedBody.setSpan(new StyleSpan(Typeface.BOLD), 0,
349						privateMarker.length(),
350						Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
351				if (message.hasMeCommand()) {
352					formattedBody.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), privateMarker.length() + 1,
353							privateMarker.length() + 1 + nick.length(),
354							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
355				}
356			}
357			Linkify.addLinks(formattedBody, Linkify.WEB_URLS);
358			Linkify.addLinks(formattedBody, XMPP_PATTERN, "xmpp");
359			Linkify.addLinks(formattedBody, GeoHelper.GEO_URI, "geo");
360			viewHolder.messageBody.setAutoLinkMask(0);
361			viewHolder.messageBody.setText(formattedBody);
362			viewHolder.messageBody.setTextIsSelectable(true);
363			viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
364		} else {
365			viewHolder.messageBody.setText("");
366			viewHolder.messageBody.setTextIsSelectable(false);
367		}
368		viewHolder.messageBody.setTextColor(this.getMessageTextColor(darkBackground, true));
369		viewHolder.messageBody.setLinkTextColor(this.getMessageTextColor(darkBackground, true));
370		viewHolder.messageBody.setHighlightColor(activity.getResources().getColor(darkBackground ? (type == SENT || !mUseGreenBackground ? R.color.black26 : R.color.grey800) : R.color.grey500));
371		viewHolder.messageBody.setTypeface(null, Typeface.NORMAL);
372		viewHolder.messageBody.setOnLongClickListener(openContextMenu);
373	}
374
375	private void displayDownloadableMessage(ViewHolder viewHolder,
376			final Message message, String text) {
377		viewHolder.image.setVisibility(View.GONE);
378		viewHolder.messageBody.setVisibility(View.GONE);
379		viewHolder.download_button.setVisibility(View.VISIBLE);
380		viewHolder.download_button.setText(text);
381		viewHolder.download_button.setOnClickListener(new OnClickListener() {
382
383			@Override
384			public void onClick(View v) {
385				activity.startDownloadable(message);
386			}
387		});
388		viewHolder.download_button.setOnLongClickListener(openContextMenu);
389	}
390
391	private void displayOpenableMessage(ViewHolder viewHolder,final Message message) {
392		viewHolder.image.setVisibility(View.GONE);
393		viewHolder.messageBody.setVisibility(View.GONE);
394		viewHolder.download_button.setVisibility(View.VISIBLE);
395		viewHolder.download_button.setText(activity.getString(R.string.open_x_file, UIHelper.getFileDescriptionString(activity, message)));
396		viewHolder.download_button.setOnClickListener(new OnClickListener() {
397
398			@Override
399			public void onClick(View v) {
400				openDownloadable(message);
401			}
402		});
403		viewHolder.download_button.setOnLongClickListener(openContextMenu);
404	}
405
406	private void displayLocationMessage(ViewHolder viewHolder, final Message message) {
407		viewHolder.image.setVisibility(View.GONE);
408		viewHolder.messageBody.setVisibility(View.GONE);
409		viewHolder.download_button.setVisibility(View.VISIBLE);
410		viewHolder.download_button.setText(R.string.show_location);
411		viewHolder.download_button.setOnClickListener(new OnClickListener() {
412
413			@Override
414			public void onClick(View v) {
415				showLocation(message);
416			}
417		});
418		viewHolder.download_button.setOnLongClickListener(openContextMenu);
419	}
420
421	private void displayImageMessage(ViewHolder viewHolder,
422			final Message message) {
423		if (viewHolder.download_button != null) {
424			viewHolder.download_button.setVisibility(View.GONE);
425		}
426		viewHolder.messageBody.setVisibility(View.GONE);
427		viewHolder.image.setVisibility(View.VISIBLE);
428		FileParams params = message.getFileParams();
429		double target = metrics.density * 288;
430		int scaledW;
431		int scaledH;
432		if (Math.max(params.height, params.width) * metrics.density <= target) {
433			scaledW = (int) (params.width * metrics.density);
434			scaledH = (int) (params.height * metrics.density);
435		} else if (Math.max(params.height,params.width) <= target) {
436			scaledW = params.width;
437			scaledH = params.height;
438		} else if (params.width <= params.height) {
439			scaledW = (int) (params.width / ((double) params.height / target));
440			scaledH = (int) target;
441		} else {
442			scaledW = (int) target;
443			scaledH = (int) (params.height / ((double) params.width / target));
444		}
445		LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(scaledW, scaledH);
446		layoutParams.setMargins(0, (int) (metrics.density * 4), 0, (int) (metrics.density * 4));
447		viewHolder.image.setLayoutParams(layoutParams);
448		activity.loadBitmap(message, viewHolder.image);
449		viewHolder.image.setOnClickListener(new OnClickListener() {
450
451			@Override
452			public void onClick(View v) {
453				openDownloadable(message);
454			}
455		});
456		viewHolder.image.setOnLongClickListener(openContextMenu);
457	}
458
459	private void loadMoreMessages(Conversation conversation) {
460		conversation.setLastClearHistory(0);
461		activity.xmppConnectionService.databaseBackend.updateConversation(conversation);
462		conversation.setHasMessagesLeftOnServer(true);
463		conversation.setFirstMamReference(null);
464		long timestamp = conversation.getLastMessageTransmitted();
465		if (timestamp == 0) {
466			timestamp = System.currentTimeMillis();
467		}
468		activity.setMessagesLoaded();
469		activity.xmppConnectionService.getMessageArchiveService().query(conversation, 0, timestamp);
470		Toast.makeText(activity, R.string.fetching_history_from_server,Toast.LENGTH_LONG).show();
471	}
472
473	@Override
474	public View getView(int position, View view, ViewGroup parent) {
475		final Message message = getItem(position);
476		final boolean isInValidSession = message.isValidInSession();
477		final Conversation conversation = message.getConversation();
478		final Account account = conversation.getAccount();
479		final int type = getItemViewType(position);
480		ViewHolder viewHolder;
481		if (view == null) {
482			viewHolder = new ViewHolder();
483			switch (type) {
484				case SENT:
485					view = activity.getLayoutInflater().inflate(
486							R.layout.message_sent, parent, false);
487					viewHolder.message_box = (LinearLayout) view
488						.findViewById(R.id.message_box);
489					viewHolder.contact_picture = (ImageView) view
490						.findViewById(R.id.message_photo);
491					viewHolder.download_button = (Button) view
492						.findViewById(R.id.download_button);
493					viewHolder.indicator = (ImageView) view
494						.findViewById(R.id.security_indicator);
495					viewHolder.edit_indicator = (ImageView) view.findViewById(R.id.edit_indicator);
496					viewHolder.image = (ImageView) view
497						.findViewById(R.id.message_image);
498					viewHolder.messageBody = (TextView) view
499						.findViewById(R.id.message_body);
500					viewHolder.time = (TextView) view
501						.findViewById(R.id.message_time);
502					viewHolder.indicatorReceived = (ImageView) view
503						.findViewById(R.id.indicator_received);
504					break;
505				case RECEIVED:
506					view = activity.getLayoutInflater().inflate(
507							R.layout.message_received, parent, false);
508					viewHolder.message_box = (LinearLayout) view
509						.findViewById(R.id.message_box);
510					viewHolder.contact_picture = (ImageView) view
511						.findViewById(R.id.message_photo);
512					viewHolder.download_button = (Button) view
513						.findViewById(R.id.download_button);
514					viewHolder.indicator = (ImageView) view
515						.findViewById(R.id.security_indicator);
516					viewHolder.edit_indicator = (ImageView) view.findViewById(R.id.edit_indicator);
517					viewHolder.image = (ImageView) view
518						.findViewById(R.id.message_image);
519					viewHolder.messageBody = (TextView) view
520						.findViewById(R.id.message_body);
521					viewHolder.time = (TextView) view
522						.findViewById(R.id.message_time);
523					viewHolder.indicatorReceived = (ImageView) view
524						.findViewById(R.id.indicator_received);
525					viewHolder.encryption = (TextView) view.findViewById(R.id.message_encryption);
526					break;
527				case STATUS:
528					view = activity.getLayoutInflater().inflate(R.layout.message_status, parent, false);
529					viewHolder.contact_picture = (ImageView) view.findViewById(R.id.message_photo);
530					viewHolder.status_message = (TextView) view.findViewById(R.id.status_message);
531					viewHolder.load_more_messages = (Button) view.findViewById(R.id.load_more_messages);
532					break;
533				default:
534					viewHolder = null;
535					break;
536			}
537			view.setTag(viewHolder);
538		} else {
539			viewHolder = (ViewHolder) view.getTag();
540			if (viewHolder == null) {
541				return view;
542			}
543		}
544
545		boolean darkBackground = type == RECEIVED && (!isInValidSession || mUseGreenBackground) || activity.isDarkTheme();
546
547		if (type == STATUS) {
548			if ("LOAD_MORE".equals(message.getBody())) {
549				viewHolder.status_message.setVisibility(View.GONE);
550				viewHolder.contact_picture.setVisibility(View.GONE);
551				viewHolder.load_more_messages.setVisibility(View.VISIBLE);
552				viewHolder.load_more_messages.setOnClickListener(new OnClickListener() {
553					@Override
554					public void onClick(View v) {
555						loadMoreMessages(message.getConversation());
556					}
557				});
558			} else {
559				viewHolder.status_message.setVisibility(View.VISIBLE);
560				viewHolder.contact_picture.setVisibility(View.VISIBLE);
561				viewHolder.load_more_messages.setVisibility(View.GONE);
562				if (conversation.getMode() == Conversation.MODE_SINGLE) {
563					viewHolder.contact_picture.setImageBitmap(activity
564							.avatarService().get(conversation.getContact(),
565									activity.getPixel(32)));
566					viewHolder.contact_picture.setAlpha(0.5f);
567				}
568				viewHolder.status_message.setText(message.getBody());
569			}
570			return view;
571		} else {
572			loadAvatar(message, viewHolder.contact_picture);
573		}
574
575		viewHolder.contact_picture
576			.setOnClickListener(new OnClickListener() {
577
578				@Override
579				public void onClick(View v) {
580					if (MessageAdapter.this.mOnContactPictureClickedListener != null) {
581						MessageAdapter.this.mOnContactPictureClickedListener
582								.onContactPictureClicked(message);
583					}
584
585				}
586			});
587		viewHolder.contact_picture
588			.setOnLongClickListener(new OnLongClickListener() {
589
590				@Override
591				public boolean onLongClick(View v) {
592					if (MessageAdapter.this.mOnContactPictureLongClickedListener != null) {
593						MessageAdapter.this.mOnContactPictureLongClickedListener
594								.onContactPictureLongClicked(message);
595						return true;
596					} else {
597						return false;
598					}
599				}
600			});
601
602		final Transferable transferable = message.getTransferable();
603		if (transferable != null && transferable.getStatus() != Transferable.STATUS_UPLOADING) {
604			if (transferable.getStatus() == Transferable.STATUS_OFFER) {
605				displayDownloadableMessage(viewHolder,message,activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, message)));
606			} else if (transferable.getStatus() == Transferable.STATUS_OFFER_CHECK_FILESIZE) {
607				displayDownloadableMessage(viewHolder, message, activity.getString(R.string.check_x_filesize, UIHelper.getFileDescriptionString(activity, message)));
608			} else {
609				displayInfoMessage(viewHolder, UIHelper.getMessagePreview(activity, message).first,darkBackground);
610			}
611		} else if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
612			displayImageMessage(viewHolder, message);
613		} else if (message.getType() == Message.TYPE_FILE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED) {
614			if (message.getFileParams().width > 0) {
615				displayImageMessage(viewHolder,message);
616			} else {
617				displayOpenableMessage(viewHolder, message);
618			}
619		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
620			if (account.isPgpDecryptionServiceConnected()) {
621				if (!account.hasPendingPgpIntent(conversation)) {
622					displayInfoMessage(viewHolder, activity.getString(R.string.message_decrypting), darkBackground);
623				} else {
624					displayInfoMessage(viewHolder, activity.getString(R.string.pgp_message), darkBackground);
625				}
626			} else {
627				displayInfoMessage(viewHolder,activity.getString(R.string.install_openkeychain),darkBackground);
628				if (viewHolder != null) {
629					viewHolder.message_box
630						.setOnClickListener(new OnClickListener() {
631
632							@Override
633							public void onClick(View v) {
634								activity.showInstallPgpDialog();
635							}
636						});
637				}
638			}
639		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
640			displayDecryptionFailed(viewHolder,darkBackground);
641		} else {
642			if (GeoHelper.isGeoUri(message.getBody())) {
643				displayLocationMessage(viewHolder,message);
644			} else if (message.bodyIsHeart()) {
645				displayHeartMessage(viewHolder, message.getBody().trim());
646			} else if (message.treatAsDownloadable() == Message.Decision.MUST) {
647				try {
648					URL url = new URL(message.getBody());
649					displayDownloadableMessage(viewHolder,
650							message,
651							activity.getString(R.string.check_x_filesize_on_host,
652									UIHelper.getFileDescriptionString(activity, message),
653									url.getHost()));
654				} catch (Exception e) {
655					displayDownloadableMessage(viewHolder,
656							message,
657							activity.getString(R.string.check_x_filesize,
658									UIHelper.getFileDescriptionString(activity, message)));
659				}
660			} else {
661				displayTextMessage(viewHolder, message, darkBackground, type);
662			}
663		}
664
665		if (type == RECEIVED) {
666			if(isInValidSession) {
667				int bubble;
668				if (!mUseGreenBackground) {
669					bubble = activity.getThemeResource(R.attr.message_bubble_received_monochrome, R.drawable.message_bubble_received_white);
670				} else {
671					bubble = activity.getThemeResource(R.attr.message_bubble_received_green, R.drawable.message_bubble_received);
672				}
673				viewHolder.message_box.setBackgroundResource(bubble);
674				viewHolder.encryption.setVisibility(View.GONE);
675			} else {
676				viewHolder.message_box.setBackgroundResource(R.drawable.message_bubble_received_warning);
677				viewHolder.encryption.setVisibility(View.VISIBLE);
678				viewHolder.encryption.setText(CryptoHelper.encryptionTypeToText(message.getEncryption()));
679			}
680		}
681
682		displayStatus(viewHolder, message, type, darkBackground);
683
684		return view;
685	}
686
687	public void openDownloadable(Message message) {
688		DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
689		if (!file.exists()) {
690			Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
691			return;
692		}
693		Intent openIntent = new Intent(Intent.ACTION_VIEW);
694		String mime = file.getMimeType();
695		if (mime == null) {
696			mime = "*/*";
697		}
698		Uri uri;
699		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
700			try {
701				uri = FileProvider.getUriForFile(activity, "eu.siacs.conversations.files", file);
702			} catch (IllegalArgumentException e) {
703				Toast.makeText(activity,activity.getString(R.string.no_permission_to_access_x,file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
704				return;
705			}
706			openIntent.setDataAndType(uri, mime);
707			openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
708		} else {
709			uri = Uri.fromFile(file);
710		}
711		openIntent.setDataAndType(uri, mime);
712		PackageManager manager = activity.getPackageManager();
713		List<ResolveInfo> info = manager.queryIntentActivities(openIntent, 0);
714		if (info.size() == 0) {
715			openIntent.setDataAndType(Uri.fromFile(file),"*/*");
716		}
717		try {
718			getContext().startActivity(openIntent);
719		}  catch (ActivityNotFoundException e) {
720			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
721		}
722	}
723
724	public void showLocation(Message message) {
725		for(Intent intent : GeoHelper.createGeoIntentsFromMessage(message)) {
726			if (intent.resolveActivity(getContext().getPackageManager()) != null) {
727				getContext().startActivity(intent);
728				return;
729			}
730		}
731		Toast.makeText(activity,R.string.no_application_found_to_display_location,Toast.LENGTH_SHORT).show();
732	}
733
734	public void updatePreferences() {
735		this.mIndicateReceived = activity.indicateReceived();
736		this.mUseGreenBackground = activity.useGreenBackground();
737	}
738
739	public TextView getMessageBody(View view) {
740		final Object tag = view.getTag();
741		if (tag instanceof ViewHolder) {
742			final ViewHolder viewHolder = (ViewHolder) tag;
743			return viewHolder.messageBody;
744		}
745		return null;
746	}
747
748	public interface OnContactPictureClicked {
749		void onContactPictureClicked(Message message);
750	}
751
752	public interface OnContactPictureLongClicked {
753		void onContactPictureLongClicked(Message message);
754	}
755
756	private static class ViewHolder {
757
758		protected LinearLayout message_box;
759		protected Button download_button;
760		protected ImageView image;
761		protected ImageView indicator;
762		protected ImageView indicatorReceived;
763		protected TextView time;
764		protected TextView messageBody;
765		protected ImageView contact_picture;
766		protected TextView status_message;
767		protected TextView encryption;
768		public Button load_more_messages;
769		public ImageView edit_indicator;
770	}
771
772	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
773		private final WeakReference<ImageView> imageViewReference;
774		private Message message = null;
775
776		public BitmapWorkerTask(ImageView imageView) {
777			imageViewReference = new WeakReference<>(imageView);
778		}
779
780		@Override
781		protected Bitmap doInBackground(Message... params) {
782			return activity.avatarService().get(params[0], activity.getPixel(48), isCancelled());
783		}
784
785		@Override
786		protected void onPostExecute(Bitmap bitmap) {
787			if (bitmap != null && !isCancelled()) {
788				final ImageView imageView = imageViewReference.get();
789				if (imageView != null) {
790					imageView.setImageBitmap(bitmap);
791					imageView.setBackgroundColor(0x00000000);
792				}
793			}
794		}
795	}
796
797	public void loadAvatar(Message message, ImageView imageView) {
798		if (cancelPotentialWork(message, imageView)) {
799			final Bitmap bm = activity.avatarService().get(message, activity.getPixel(48), true);
800			if (bm != null) {
801				cancelPotentialWork(message, imageView);
802				imageView.setImageBitmap(bm);
803				imageView.setBackgroundColor(0x00000000);
804			} else {
805				imageView.setBackgroundColor(UIHelper.getColorForName(UIHelper.getMessageDisplayName(message)));
806				imageView.setImageDrawable(null);
807				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
808				final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
809				imageView.setImageDrawable(asyncDrawable);
810				try {
811					task.execute(message);
812				} catch (final RejectedExecutionException ignored) {
813				}
814			}
815		}
816	}
817
818	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
819		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
820
821		if (bitmapWorkerTask != null) {
822			final Message oldMessage = bitmapWorkerTask.message;
823			if (oldMessage == null || message != oldMessage) {
824				bitmapWorkerTask.cancel(true);
825			} else {
826				return false;
827			}
828		}
829		return true;
830	}
831
832	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
833		if (imageView != null) {
834			final Drawable drawable = imageView.getDrawable();
835			if (drawable instanceof AsyncDrawable) {
836				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
837				return asyncDrawable.getBitmapWorkerTask();
838			}
839		}
840		return null;
841	}
842
843	static class AsyncDrawable extends BitmapDrawable {
844		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
845
846		public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
847			super(res, bitmap);
848			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
849		}
850
851		public BitmapWorkerTask getBitmapWorkerTask() {
852			return bitmapWorkerTaskReference.get();
853		}
854	}
855}