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 android.app.Activity;
33import android.app.AlertDialog;
34import android.content.Intent;
35import android.graphics.Canvas;
36import android.graphics.Paint;
37import android.os.Bundle;
38import android.util.Log;
39import android.view.LayoutInflater;
40import android.view.Menu;
41import android.view.MenuInflater;
42import android.view.MenuItem;
43import android.view.View;
44import android.view.ViewGroup;
45import android.widget.Toast;
46
47import androidx.databinding.DataBindingUtil;
48import androidx.fragment.app.Fragment;
49import androidx.fragment.app.FragmentManager;
50import androidx.recyclerview.widget.ItemTouchHelper;
51import androidx.recyclerview.widget.LinearLayoutManager;
52import androidx.recyclerview.widget.RecyclerView;
53
54import com.google.android.material.snackbar.Snackbar;
55import com.google.common.collect.Collections2;
56
57import java.util.ArrayList;
58import java.util.List;
59import java.util.concurrent.atomic.AtomicReference;
60
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.ui.adapter.ConversationAdapter;
68import eu.siacs.conversations.ui.interfaces.OnConversationArchived;
69import eu.siacs.conversations.ui.interfaces.OnConversationSelected;
70import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
71import eu.siacs.conversations.ui.util.PendingActionHelper;
72import eu.siacs.conversations.ui.util.PendingItem;
73import eu.siacs.conversations.ui.util.ScrollState;
74import eu.siacs.conversations.ui.util.StyledAttributes;
75import eu.siacs.conversations.utils.AccountUtils;
76import eu.siacs.conversations.utils.EasyOnboardingInvite;
77import eu.siacs.conversations.utils.ThemeHelper;
78
79import static androidx.recyclerview.widget.ItemTouchHelper.LEFT;
80import static androidx.recyclerview.widget.ItemTouchHelper.RIGHT;
81
82public class ConversationsOverviewFragment extends XmppFragment {
83
84 private static final String STATE_SCROLL_POSITION = ConversationsOverviewFragment.class.getName()+".scroll_state";
85
86 private final List<Conversation> conversations = new ArrayList<>();
87 private final PendingItem<Conversation> swipedConversation = new PendingItem<>();
88 private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
89 private FragmentConversationsOverviewBinding binding;
90 private ConversationAdapter conversationsAdapter;
91 private XmppActivity activity;
92 private float mSwipeEscapeVelocity = 0f;
93 private final PendingActionHelper pendingActionHelper = new PendingActionHelper();
94
95 private final ItemTouchHelper.SimpleCallback callback = new ItemTouchHelper.SimpleCallback(0,LEFT|RIGHT) {
96 @Override
97 public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
98 //todo maybe we can manually changing the position of the conversation
99 return false;
100 }
101
102 @Override
103 public float getSwipeEscapeVelocity (float defaultValue) {
104 return mSwipeEscapeVelocity;
105 }
106
107 @Override
108 public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
109 float dX, float dY, int actionState, boolean isCurrentlyActive) {
110 super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
111 if(actionState != ItemTouchHelper.ACTION_STATE_IDLE){
112 Paint paint = new Paint();
113 paint.setColor(StyledAttributes.getColor(activity,R.attr.conversations_overview_background));
114 paint.setStyle(Paint.Style.FILL);
115 c.drawRect(viewHolder.itemView.getLeft(),viewHolder.itemView.getTop()
116 ,viewHolder.itemView.getRight(),viewHolder.itemView.getBottom(), paint);
117 }
118 }
119
120 @Override
121 public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
122 super.clearView(recyclerView, viewHolder);
123 viewHolder.itemView.setAlpha(1f);
124 }
125
126 @Override
127 public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
128 pendingActionHelper.execute();
129 int position = viewHolder.getLayoutPosition();
130 try {
131 swipedConversation.push(conversations.get(position));
132 } catch (IndexOutOfBoundsException e) {
133 return;
134 }
135 conversationsAdapter.remove(swipedConversation.peek(), position);
136 activity.xmppConnectionService.markRead(swipedConversation.peek());
137
138 if (position == 0 && conversationsAdapter.getItemCount() == 0) {
139 final Conversation c = swipedConversation.pop();
140 activity.xmppConnectionService.archiveConversation(c);
141 return;
142 }
143 final boolean formerlySelected = ConversationFragment.getConversation(requireActivity().getSupportFragmentManager()) == swipedConversation.peek();
144 if (activity instanceof OnConversationArchived) {
145 ((OnConversationArchived) activity).onConversationArchived(swipedConversation.peek());
146 }
147 final Conversation c = swipedConversation.peek();
148 final int title;
149 if (c.getMode() == Conversational.MODE_MULTI) {
150 if (c.getMucOptions().isPrivateAndNonAnonymous()) {
151 title = R.string.title_undo_swipe_out_group_chat;
152 } else {
153 title = R.string.title_undo_swipe_out_channel;
154 }
155 } else {
156 title = R.string.title_undo_swipe_out_conversation;
157 }
158
159 final Snackbar snackbar = Snackbar.make(binding.list, title, 5000)
160 .setAction(R.string.undo, v -> {
161 pendingActionHelper.undo();
162 Conversation conversation = swipedConversation.pop();
163 conversationsAdapter.insert(conversation, position);
164 if (formerlySelected) {
165 if (activity instanceof OnConversationSelected) {
166 ((OnConversationSelected) activity).onConversationSelected(c);
167 }
168 }
169 LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
170 if (position > layoutManager.findLastVisibleItemPosition()) {
171 binding.list.smoothScrollToPosition(position);
172 }
173 })
174 .addCallback(new Snackbar.Callback() {
175 @Override
176 public void onDismissed(Snackbar transientBottomBar, int event) {
177 switch (event) {
178 case DISMISS_EVENT_SWIPE:
179 case DISMISS_EVENT_TIMEOUT:
180 pendingActionHelper.execute();
181 break;
182 }
183 }
184 });
185
186 pendingActionHelper.push(() -> {
187 if (snackbar.isShownOrQueued()) {
188 snackbar.dismiss();
189 }
190 final Conversation conversation = swipedConversation.pop();
191 if(conversation != null){
192 if (!conversation.isRead() && conversation.getMode() == Conversation.MODE_SINGLE) {
193 return;
194 }
195 activity.xmppConnectionService.archiveConversation(c);
196 }
197 });
198
199 ThemeHelper.fix(snackbar);
200 snackbar.show();
201 }
202 };
203
204 private ItemTouchHelper touchHelper;
205
206 public static Conversation getSuggestion(FragmentManager fragmentManager) {
207 final Conversation exception;
208 Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
209 if (fragment instanceof ConversationsOverviewFragment) {
210 exception = ((ConversationsOverviewFragment) fragment).swipedConversation.peek();
211 } else {
212 exception = null;
213 }
214 return getSuggestion(fragmentManager, exception);
215 }
216
217 public static Conversation getSuggestion(FragmentManager fragmentManager, Conversation exception) {
218 Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
219 if (fragment instanceof ConversationsOverviewFragment) {
220 List<Conversation> conversations = ((ConversationsOverviewFragment) fragment).conversations;
221 if (conversations.size() > 0) {
222 Conversation suggestion = conversations.get(0);
223 if (suggestion == exception) {
224 if (conversations.size() > 1) {
225 return conversations.get(1);
226 }
227 } else {
228 return suggestion;
229 }
230 }
231 }
232 return null;
233
234 }
235
236 @Override
237 public void onActivityCreated(Bundle savedInstanceState) {
238 super.onActivityCreated(savedInstanceState);
239 if (savedInstanceState == null) {
240 return;
241 }
242 pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
243 }
244
245 @Override
246 public void onAttach(Activity activity) {
247 super.onAttach(activity);
248 if (activity instanceof XmppActivity) {
249 this.activity = (XmppActivity) activity;
250 } else {
251 throw new IllegalStateException("Trying to attach fragment to activity that is not an XmppActivity");
252 }
253 }
254 @Override
255 public void onDestroyView() {
256 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onDestroyView()");
257 super.onDestroyView();
258 this.binding = null;
259 this.conversationsAdapter = null;
260 this.touchHelper = null;
261 }
262 @Override
263 public void onDestroy() {
264 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onDestroy()");
265 super.onDestroy();
266
267 }
268 @Override
269 public void onPause() {
270 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onPause()");
271 pendingActionHelper.execute();
272 super.onPause();
273 }
274
275 @Override
276 public void onDetach() {
277 super.onDetach();
278 this.activity = null;
279 }
280
281 @Override
282 public void onCreate(Bundle savedInstanceState) {
283 super.onCreate(savedInstanceState);
284 setHasOptionsMenu(true);
285 }
286
287 @Override
288 public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
289 this.mSwipeEscapeVelocity = getResources().getDimension(R.dimen.swipe_escape_velocity);
290 this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversations_overview, container, false);
291 this.binding.fab.setOnClickListener((view) -> StartConversationActivity.launch(getActivity()));
292
293 this.conversationsAdapter = new ConversationAdapter(this.activity, this.conversations);
294 this.conversationsAdapter.setConversationClickListener((view, conversation) -> {
295 if (activity instanceof OnConversationSelected) {
296 ((OnConversationSelected) activity).onConversationSelected(conversation);
297 } else {
298 Log.w(ConversationsOverviewFragment.class.getCanonicalName(), "Activity does not implement OnConversationSelected");
299 }
300 });
301 this.binding.list.setAdapter(this.conversationsAdapter);
302 this.binding.list.setLayoutManager(new LinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false));
303 this.touchHelper = new ItemTouchHelper(this.callback);
304 this.touchHelper.attachToRecyclerView(this.binding.list);
305 return binding.getRoot();
306 }
307
308 @Override
309 public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
310 menuInflater.inflate(R.menu.fragment_conversations_overview, menu);
311 AccountUtils.showHideMenuItems(menu);
312 final MenuItem easyOnboardInvite = menu.findItem(R.id.action_easy_invite);
313 easyOnboardInvite.setVisible(EasyOnboardingInvite.anyHasSupport(activity == null ? null : activity.xmppConnectionService));
314 }
315
316 @Override
317 public void onBackendConnected() {
318 refresh();
319 }
320
321 @Override
322 public void onSaveInstanceState(Bundle bundle) {
323 super.onSaveInstanceState(bundle);
324 ScrollState scrollState = getScrollState();
325 if (scrollState != null) {
326 bundle.putParcelable(STATE_SCROLL_POSITION, scrollState);
327 }
328 }
329
330 private ScrollState getScrollState() {
331 if (this.binding == null) {
332 return null;
333 }
334 LinearLayoutManager layoutManager = (LinearLayoutManager) this.binding.list.getLayoutManager();
335 int position = layoutManager.findFirstVisibleItemPosition();
336 final View view = this.binding.list.getChildAt(0);
337 if (view != null) {
338 return new ScrollState(position,view.getTop());
339 } else {
340 return new ScrollState(position, 0);
341 }
342 }
343
344 @Override
345 public void onStart() {
346 super.onStart();
347 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onStart()");
348 if (activity.xmppConnectionService != null) {
349 refresh();
350 }
351 }
352
353 @Override
354 public void onResume() {
355 super.onResume();
356 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onResume()");
357 }
358
359 @Override
360 public boolean onOptionsItemSelected(final MenuItem item) {
361 if (MenuDoubleTabUtil.shouldIgnoreTap()) {
362 return false;
363 }
364 switch (item.getItemId()) {
365 case R.id.action_search:
366 startActivity(new Intent(getActivity(), SearchActivity.class));
367 return true;
368 case R.id.action_easy_invite:
369 selectAccountToStartEasyInvite();
370 return true;
371 }
372 return super.onOptionsItemSelected(item);
373 }
374
375 private void selectAccountToStartEasyInvite() {
376 final List<Account> accounts = EasyOnboardingInvite.getSupportingAccounts(activity.xmppConnectionService);
377 if (accounts.size() == 0) {
378 //This can technically happen if opening the menu item races with accounts reconnecting or something
379 Toast.makeText(getActivity(),R.string.no_active_accounts_support_this, Toast.LENGTH_LONG).show();
380 } else if (accounts.size() == 1) {
381 openEasyInviteScreen(accounts.get(0));
382 } else {
383 final AtomicReference<Account> selectedAccount = new AtomicReference<>(accounts.get(0));
384 final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(activity);
385 alertDialogBuilder.setTitle(R.string.choose_account);
386 final String[] asStrings = Collections2.transform(accounts, a -> a.getJid().asBareJid().toEscapedString()).toArray(new String[0]);
387 alertDialogBuilder.setSingleChoiceItems(asStrings, 0, (dialog, which) -> selectedAccount.set(accounts.get(which)));
388 alertDialogBuilder.setNegativeButton(R.string.cancel, null);
389 alertDialogBuilder.setPositiveButton(R.string.ok, (dialog, which) -> openEasyInviteScreen(selectedAccount.get()));
390 alertDialogBuilder.create().show();
391 }
392 }
393
394 private void openEasyInviteScreen(final Account account) {
395 EasyOnboardingInviteActivity.launch(account, activity);
396 }
397
398 @Override
399 void refresh() {
400 if (this.binding == null || this.activity == null) {
401 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.refresh() skipped updated because view binding or activity was null");
402 return;
403 }
404 this.activity.xmppConnectionService.populateWithOrderedConversations(this.conversations);
405 Conversation removed = this.swipedConversation.peek();
406 if (removed != null) {
407 if (removed.isRead()) {
408 this.conversations.remove(removed);
409 } else {
410 pendingActionHelper.execute();
411 }
412 }
413 this.conversationsAdapter.notifyDataSetChanged();
414 ScrollState scrollState = pendingScrollState.pop();
415 if (scrollState != null) {
416 setScrollPosition(scrollState);
417 }
418 }
419
420 private void setScrollPosition(ScrollState scrollPosition) {
421 if (scrollPosition != null) {
422 LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
423 layoutManager.scrollToPositionWithOffset(scrollPosition.position, scrollPosition.offset);
424 }
425 }
426}