1/*
2 * Copyright (c) 2018, Daniel Gultsch All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation and/or
12 * other materials provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors
15 * may be used to endorse or promote products derived from this software without
16 * specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
25 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30package eu.siacs.conversations.ui;
31
32import static androidx.recyclerview.widget.ItemTouchHelper.LEFT;
33import static androidx.recyclerview.widget.ItemTouchHelper.RIGHT;
34
35import android.app.Activity;
36import android.app.Fragment;
37import android.content.Intent;
38import android.graphics.Canvas;
39import android.os.Bundle;
40import android.util.Log;
41import android.view.ContextMenu;
42import android.view.LayoutInflater;
43import android.view.Menu;
44import android.view.MenuInflater;
45import android.view.MenuItem;
46import android.view.View;
47import android.view.ViewGroup;
48import android.widget.AdapterView.AdapterContextMenuInfo;
49import android.widget.PopupMenu;
50import android.widget.Toast;
51import androidx.annotation.NonNull;
52import androidx.databinding.DataBindingUtil;
53import androidx.recyclerview.widget.ItemTouchHelper;
54import androidx.recyclerview.widget.LinearLayoutManager;
55import androidx.recyclerview.widget.RecyclerView;
56import com.google.android.material.dialog.MaterialAlertDialogBuilder;
57import com.google.android.material.snackbar.Snackbar;
58import com.google.common.base.Optional;
59import com.google.common.collect.Collections2;
60import eu.siacs.conversations.BuildConfig;
61import eu.siacs.conversations.Config;
62import eu.siacs.conversations.R;
63import eu.siacs.conversations.databinding.FragmentConversationsOverviewBinding;
64import eu.siacs.conversations.entities.Account;
65import eu.siacs.conversations.entities.Conversation;
66import eu.siacs.conversations.entities.Conversational;
67import eu.siacs.conversations.services.XmppConnectionService;
68import eu.siacs.conversations.services.QuickConversationsService;
69import eu.siacs.conversations.ui.adapter.ConversationAdapter;
70import eu.siacs.conversations.ui.interfaces.OnConversationArchived;
71import eu.siacs.conversations.ui.interfaces.OnConversationSelected;
72import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
73import eu.siacs.conversations.ui.util.PendingActionHelper;
74import eu.siacs.conversations.ui.util.PendingItem;
75import eu.siacs.conversations.ui.util.ScrollState;
76import eu.siacs.conversations.utils.AccountUtils;
77import eu.siacs.conversations.utils.EasyOnboardingInvite;
78import eu.siacs.conversations.utils.ThemeHelper;
79import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
80
81import static androidx.recyclerview.widget.ItemTouchHelper.LEFT;
82import static androidx.recyclerview.widget.ItemTouchHelper.RIGHT;
83
84import java.util.ArrayList;
85import java.util.List;
86import java.util.concurrent.atomic.AtomicReference;
87
88public class ConversationsOverviewFragment extends XmppFragment {
89
90 private static final String STATE_SCROLL_POSITION =
91 ConversationsOverviewFragment.class.getName() + ".scroll_state";
92
93 private final List<Conversation> conversations = new ArrayList<>();
94 private final PendingItem<Conversation> swipedConversation = new PendingItem<>();
95 private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
96 private FragmentConversationsOverviewBinding binding;
97 private ConversationAdapter conversationsAdapter;
98 private XmppActivity activity;
99 private final PendingActionHelper pendingActionHelper = new PendingActionHelper();
100
101 private final ItemTouchHelper.SimpleCallback callback =
102 new ItemTouchHelper.SimpleCallback(0, LEFT | RIGHT) {
103 @Override
104 public boolean onMove(
105 @NonNull RecyclerView recyclerView,
106 @NonNull RecyclerView.ViewHolder viewHolder,
107 @NonNull RecyclerView.ViewHolder target) {
108 return false;
109 }
110
111 @Override
112 public void onChildDraw(
113 @NonNull Canvas c,
114 @NonNull RecyclerView recyclerView,
115 @NonNull RecyclerView.ViewHolder viewHolder,
116 float dX,
117 float dY,
118 int actionState,
119 boolean isCurrentlyActive) {
120 if (viewHolder
121 instanceof
122 ConversationAdapter.ConversationViewHolder conversationViewHolder) {
123 getDefaultUIUtil()
124 .onDraw(
125 c,
126 recyclerView,
127 conversationViewHolder.binding.frame,
128 dX,
129 dY,
130 actionState,
131 isCurrentlyActive);
132 }
133 }
134
135 @Override
136 public void clearView(
137 @NonNull RecyclerView recyclerView,
138 @NonNull RecyclerView.ViewHolder viewHolder) {
139 if (viewHolder
140 instanceof
141 ConversationAdapter.ConversationViewHolder conversationViewHolder) {
142 getDefaultUIUtil().clearView(conversationViewHolder.binding.frame);
143 }
144 }
145
146 @Override
147 public float getSwipeEscapeVelocity(final float defaultEscapeVelocity) {
148 return 32 * defaultEscapeVelocity;
149 }
150
151 @Override
152 public void onSwiped(
153 final RecyclerView.ViewHolder viewHolder, final int direction) {
154 pendingActionHelper.execute();
155 int position = viewHolder.getLayoutPosition();
156 try {
157 swipedConversation.push(conversations.get(position));
158 } catch (IndexOutOfBoundsException e) {
159 return;
160 }
161 conversationsAdapter.remove(swipedConversation.peek(), position);
162 activity.xmppConnectionService.markRead(swipedConversation.peek());
163
164 if (position == 0 && conversationsAdapter.getItemCount() == 0) {
165 final Conversation c = swipedConversation.pop();
166 activity.xmppConnectionService.archiveConversation(c);
167 return;
168 }
169 final boolean formerlySelected =
170 ConversationFragment.getConversation(getActivity())
171 == swipedConversation.peek();
172 if (activity instanceof OnConversationArchived) {
173 ((OnConversationArchived) activity)
174 .onConversationArchived(swipedConversation.peek());
175 }
176 final Conversation c = swipedConversation.peek();
177 final int title;
178 if (c.getMode() == Conversational.MODE_MULTI) {
179 if (c.getMucOptions().isPrivateAndNonAnonymous()) {
180 title = R.string.title_undo_swipe_out_group_chat;
181 } else {
182 title = R.string.title_undo_swipe_out_channel;
183 }
184 } else {
185 title = R.string.title_undo_swipe_out_chat;
186 }
187
188 final Snackbar snackbar =
189 Snackbar.make(binding.list, title, 5000)
190 .setAction(
191 R.string.undo,
192 v -> {
193 pendingActionHelper.undo();
194 Conversation conversation =
195 swipedConversation.pop();
196 conversationsAdapter.insert(conversation, position);
197 if (formerlySelected) {
198 if (activity
199 instanceof OnConversationSelected) {
200 ((OnConversationSelected) activity)
201 .onConversationSelected(c);
202 }
203 }
204 LinearLayoutManager layoutManager =
205 (LinearLayoutManager)
206 binding.list.getLayoutManager();
207 if (position
208 > layoutManager
209 .findLastVisibleItemPosition()) {
210 binding.list.smoothScrollToPosition(position);
211 }
212 })
213 .addCallback(
214 new Snackbar.Callback() {
215 @Override
216 public void onDismissed(
217 Snackbar transientBottomBar, int event) {
218 switch (event) {
219 case DISMISS_EVENT_SWIPE:
220 case DISMISS_EVENT_TIMEOUT:
221 pendingActionHelper.execute();
222 break;
223 }
224 }
225 });
226
227 pendingActionHelper.push(
228 () -> {
229 if (snackbar.isShownOrQueued()) {
230 snackbar.dismiss();
231 }
232 final Conversation conversation = swipedConversation.pop();
233 if (conversation != null) {
234 if (!conversation.isRead(activity.xmppConnectionService)
235 && conversation.getMode() == Conversation.MODE_SINGLE) {
236 return;
237 }
238 activity.xmppConnectionService.archiveConversation(c);
239 }
240 });
241 snackbar.show();
242 }
243 };
244
245 private ItemTouchHelper touchHelper;
246
247 public static Conversation getSuggestion(Activity activity) {
248 final Conversation exception;
249 Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
250 if (fragment instanceof ConversationsOverviewFragment) {
251 exception = ((ConversationsOverviewFragment) fragment).swipedConversation.peek();
252 } else {
253 exception = null;
254 }
255 return getSuggestion(activity, exception);
256 }
257
258 public static Conversation getSuggestion(Activity activity, Conversation exception) {
259 Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
260 if (fragment instanceof ConversationsOverviewFragment) {
261 List<Conversation> conversations =
262 ((ConversationsOverviewFragment) fragment).conversations;
263 if (conversations.size() > 0) {
264 Conversation suggestion = conversations.get(0);
265 if (suggestion == exception) {
266 if (conversations.size() > 1) {
267 return conversations.get(1);
268 }
269 } else {
270 return suggestion;
271 }
272 }
273 }
274 return null;
275 }
276
277 @Override
278 public void onActivityCreated(Bundle savedInstanceState) {
279 super.onActivityCreated(savedInstanceState);
280 if (savedInstanceState == null) {
281 return;
282 }
283 pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
284 }
285
286 @Override
287 public void onAttach(Activity activity) {
288 super.onAttach(activity);
289 if (activity instanceof XmppActivity) {
290 this.activity = (XmppActivity) activity;
291 } else {
292 throw new IllegalStateException(
293 "Trying to attach fragment to activity that is not an XmppActivity");
294 }
295 }
296
297 @Override
298 public void onDestroyView() {
299 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onDestroyView()");
300 super.onDestroyView();
301 this.binding = null;
302 this.conversationsAdapter = null;
303 this.touchHelper = null;
304 }
305
306 @Override
307 public void onDestroy() {
308 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onDestroy()");
309 super.onDestroy();
310 }
311
312 @Override
313 public void onPause() {
314 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onPause()");
315 pendingActionHelper.execute();
316 super.onPause();
317 }
318
319 @Override
320 public void onDetach() {
321 super.onDetach();
322 this.activity = null;
323 }
324
325 @Override
326 public void onCreate(Bundle savedInstanceState) {
327 super.onCreate(savedInstanceState);
328 setHasOptionsMenu(true);
329 }
330
331 @Override
332 public View onCreateView(
333 final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
334 this.binding =
335 DataBindingUtil.inflate(
336 inflater, R.layout.fragment_conversations_overview, container, false);
337 this.binding.fab.setOnClickListener(
338 (view) -> StartConversationActivity.launch(getActivity()));
339
340 this.conversationsAdapter = new ConversationAdapter(this.activity, this.conversations);
341 this.conversationsAdapter.setConversationClickListener(
342 (view, conversation) -> {
343 if (activity instanceof OnConversationSelected) {
344 ((OnConversationSelected) activity).onConversationSelected(conversation);
345 } else {
346 Log.w(
347 ConversationsOverviewFragment.class.getCanonicalName(),
348 "Activity does not implement OnConversationSelected");
349 }
350 });
351 this.binding.list.setAdapter(this.conversationsAdapter);
352 this.binding.list.setLayoutManager(
353 new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false));
354 registerForContextMenu(this.binding.list);
355 this.binding.list.addOnScrollListener(ExtendedFabSizeChanger.of(binding.fab));
356 this.touchHelper = new ItemTouchHelper(this.callback);
357 this.touchHelper.attachToRecyclerView(this.binding.list);
358 return binding.getRoot();
359 }
360
361 @Override
362 public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
363 menuInflater.inflate(R.menu.fragment_conversations_overview, menu);
364 AccountUtils.showHideMenuItems(menu);
365 final MenuItem easyOnboardInvite = menu.findItem(R.id.action_easy_invite);
366 easyOnboardInvite.setVisible(EasyOnboardingInvite.anyHasSupport(activity == null ? null : activity.xmppConnectionService));
367 if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.isOnboarding()) {
368 final MenuItem manageAccounts = menu.findItem(R.id.action_accounts);
369 if (manageAccounts != null) manageAccounts.setVisible(false);
370
371 final MenuItem settings = menu.findItem(R.id.action_settings);
372 if (settings != null) settings.setVisible(false);
373 }
374 }
375
376 @Override
377 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
378 activity.getMenuInflater().inflate(R.menu.conversations, menu);
379
380 final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
381 final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
382 final MenuItem menuMute = menu.findItem(R.id.action_mute);
383 final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
384 final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
385 final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
386 final MenuItem menuArchiveChat = menu.findItem(R.id.action_archive);
387
388 if (menuInfo == null) return;
389 int pos = ((AdapterContextMenuInfo) menuInfo).position;
390 if (pos < 0) return;
391 Conversation conversation = conversations.get(pos);
392 if (conversation != null) {
393 if (conversation.getMode() == Conversation.MODE_MULTI) {
394 menuContactDetails.setVisible(false);
395 menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
396 menuOngoingCall.setVisible(false);
397 menuArchiveChat.setTitle("Leave " + (conversation.getMucOptions().isPrivateAndNonAnonymous() ? "group chat" : "Channel"));
398 } else {
399 final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
400 final Optional<OngoingRtpSession> ongoingRtpSession = service == null ? Optional.absent() : service.getJingleConnectionManager().getOngoingRtpConnection(conversation.getContact());
401 if (ongoingRtpSession.isPresent()) {
402 menuOngoingCall.setVisible(true);
403 } else {
404 menuOngoingCall.setVisible(false);
405 }
406 menuContactDetails.setVisible(!conversation.withSelf());
407 menuMucDetails.setVisible(false);
408 menuArchiveChat.setTitle(R.string.action_archive_chat);
409 }
410 if (conversation.isMuted()) {
411 menuMute.setVisible(false);
412 } else {
413 menuUnmute.setVisible(false);
414 }
415 if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
416 menuTogglePinned.setTitle(R.string.remove_from_favorites);
417 } else {
418 menuTogglePinned.setTitle(R.string.add_to_favorites);
419 }
420 }
421 super.onCreateContextMenu(menu, view, menuInfo);
422 }
423
424 @Override
425 public boolean onContextItemSelected(MenuItem item) {
426 final var info = ((AdapterContextMenuInfo) item.getMenuInfo());
427 if (info == null) return false;
428
429 int pos = info.position;
430 if (conversations == null || conversations.size() <= pos || pos < 0) return false;
431
432 Conversation conversation = conversations.get(pos);
433 ConversationFragment fragment = new ConversationFragment();
434 fragment.setHasOptionsMenu(false);
435 fragment.onAttach(activity);
436 fragment.reInit(conversation, null);
437 boolean r = fragment.onOptionsItemSelected(item);
438 refresh();
439 return r;
440 }
441
442 @Override
443 public void onBackendConnected() {
444 refresh();
445 }
446
447 private void setupSwipe() {
448 if (this.touchHelper == null && (activity.xmppConnectionService == null || !activity.xmppConnectionService.isOnboarding())) {
449 this.touchHelper = new ItemTouchHelper(this.callback);
450 this.touchHelper.attachToRecyclerView(this.binding.list);
451 }
452 }
453
454 @Override
455 public void onSaveInstanceState(Bundle bundle) {
456 super.onSaveInstanceState(bundle);
457 ScrollState scrollState = getScrollState();
458 if (scrollState != null) {
459 bundle.putParcelable(STATE_SCROLL_POSITION, scrollState);
460 }
461 }
462
463 private ScrollState getScrollState() {
464 if (this.binding == null) {
465 return null;
466 }
467 if (this.binding.list.getLayoutManager()
468 instanceof LinearLayoutManager linearLayoutManager) {
469 final int position = linearLayoutManager.findFirstVisibleItemPosition();
470 final View view = this.binding.list.getChildAt(0);
471 if (view != null) {
472 return new ScrollState(position, view.getTop());
473 } else {
474 return new ScrollState(position, 0);
475 }
476 }
477 return null;
478 }
479
480 @Override
481 public void onStart() {
482 super.onStart();
483 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onStart()");
484 if (activity.xmppConnectionService != null) {
485 refresh();
486 }
487 }
488
489 @Override
490 public void onResume() {
491 super.onResume();
492 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onResume()");
493 }
494
495 @Override
496 public boolean onOptionsItemSelected(final MenuItem item) {
497 if (MenuDoubleTabUtil.shouldIgnoreTap()) {
498 return false;
499 }
500 switch (item.getItemId()) {
501 case R.id.action_search:
502 startActivity(new Intent(getActivity(), SearchActivity.class));
503 return true;
504 case R.id.action_easy_invite:
505 selectAccountToStartEasyInvite();
506 return true;
507 }
508 return super.onOptionsItemSelected(item);
509 }
510
511 private void selectAccountToStartEasyInvite() {
512 final List<Account> accounts =
513 EasyOnboardingInvite.getSupportingAccounts(activity.xmppConnectionService);
514 if (accounts.isEmpty()) {
515 // This can technically happen if opening the menu item races with accounts reconnecting
516 // or something
517 Toast.makeText(
518 getActivity(),
519 R.string.no_active_accounts_support_this,
520 Toast.LENGTH_LONG)
521 .show();
522 } else if (accounts.size() == 1) {
523 openEasyInviteScreen(accounts.get(0));
524 } else {
525 final AtomicReference<Account> selectedAccount = new AtomicReference<>(accounts.get(0));
526 final MaterialAlertDialogBuilder alertDialogBuilder =
527 new MaterialAlertDialogBuilder(activity);
528 alertDialogBuilder.setTitle(R.string.choose_account);
529 final String[] asStrings =
530 Collections2.transform(accounts, a -> a.getJid().asBareJid().toString())
531 .toArray(new String[0]);
532 alertDialogBuilder.setSingleChoiceItems(
533 asStrings, 0, (dialog, which) -> selectedAccount.set(accounts.get(which)));
534 alertDialogBuilder.setNegativeButton(R.string.cancel, null);
535 alertDialogBuilder.setPositiveButton(
536 R.string.ok, (dialog, which) -> openEasyInviteScreen(selectedAccount.get()));
537 alertDialogBuilder.create().show();
538 }
539 }
540
541 private void openEasyInviteScreen(final Account account) {
542 EasyOnboardingInviteActivity.launch(account, activity);
543 }
544
545 @Override
546 protected void refresh() {
547 if (binding == null || this.activity == null) {
548 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.refresh() skipped updated because view binding or activity was null");
549 return;
550 }
551 this.activity.populateWithOrderedConversations(this.conversations);
552 Conversation removed = this.swipedConversation.peek();
553 if (removed != null) {
554 if (removed.isRead(activity == null ? null : activity.xmppConnectionService)) {
555 this.conversations.remove(removed);
556 } else {
557 pendingActionHelper.execute();
558 }
559 }
560 this.conversationsAdapter.notifyDataSetChanged();
561 final var scrollState = pendingScrollState.pop();
562 if (scrollState != null) {
563 setScrollPosition(scrollState);
564 }
565
566 if (activity.xmppConnectionService != null && activity.xmppConnectionService.isOnboarding()) {
567 binding.fab.setVisibility(View.GONE);
568
569 if (this.conversations.size() == 1) {
570 if (activity instanceof OnConversationSelected) {
571 ((OnConversationSelected) activity).onConversationSelected(this.conversations.get(0));
572 } else {
573 Log.w(ConversationsOverviewFragment.class.getCanonicalName(), "Activity does not implement OnConversationSelected");
574 }
575 }
576 } else {
577 binding.fab.setVisibility(View.VISIBLE);
578 }
579 setupSwipe();
580
581 if (activity.xmppConnectionService == null || binding == null || binding.overviewSnackbar == null) return;
582 binding.overviewSnackbar.setVisibility(View.GONE);
583 for (final var account : activity.xmppConnectionService.getAccounts()) {
584 if (activity.getPreferences().getBoolean("no_mam_pref_warn:" + account.getUuid(), false)) continue;
585 if (account.mamPrefs() != null && !"always".equals(account.mamPrefs().getAttribute("default"))) {
586 binding.overviewSnackbar.setVisibility(View.VISIBLE);
587 binding.overviewSnackbarMessage.setText("Your account " + account.getJid().asBareJid().toString() + " does not have archiving fully enabled. This may result in missed messages if you use multiple devices or apps.");
588 binding.overviewSnackbarAction.setOnClickListener((v) -> {
589 final var prefs = account.mamPrefs();
590 prefs.setAttribute("default", "always");
591 activity.xmppConnectionService.pushMamPreferences(account, prefs);
592 refresh();
593 });
594
595 binding.overviewSnackbarAction.setOnLongClickListener((v) -> {
596 PopupMenu popupMenu = new PopupMenu(getActivity(), v);
597 popupMenu.inflate(R.menu.mam_pref_fix);
598 popupMenu.setOnMenuItemClickListener(menuItem -> {
599 switch (menuItem.getItemId()) {
600 case R.id.ignore:
601 final var editor = activity.getPreferences().edit();
602 editor.putBoolean("no_mam_pref_warn:" + account.getUuid(), true).apply();
603 editor.apply();
604 refresh();
605 return true;
606 }
607 return true;
608 });
609 popupMenu.show();
610 return true;
611 });
612 break;
613 }
614 }
615 }
616
617 private void setScrollPosition(@NonNull final ScrollState scrollPosition) {
618 if (binding.list.getLayoutManager() instanceof LinearLayoutManager linearLayoutManager) {
619 linearLayoutManager.scrollToPositionWithOffset(
620 scrollPosition.position, scrollPosition.offset);
621 if (scrollPosition.position > 0) {
622 binding.fab.shrink();
623 } else {
624 binding.fab.extend();
625 }
626 binding.fab.clearAnimation();
627 }
628 }
629}