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.app.Fragment;
35import android.content.Intent;
36import androidx.databinding.DataBindingUtil;
37import android.graphics.Canvas;
38import android.graphics.Paint;
39import android.os.Bundle;
40import com.google.android.material.snackbar.Snackbar;
41import androidx.recyclerview.widget.LinearLayoutManager;
42import androidx.recyclerview.widget.RecyclerView;
43import androidx.recyclerview.widget.ItemTouchHelper;
44import android.util.Log;
45import android.view.LayoutInflater;
46import android.view.Menu;
47import android.view.MenuInflater;
48import android.view.MenuItem;
49import android.view.View;
50import android.view.ViewGroup;
51import android.widget.Toast;
52
53import com.google.common.collect.Collections2;
54
55import java.util.ArrayList;
56import java.util.List;
57import java.util.concurrent.atomic.AtomicReference;
58
59import eu.siacs.conversations.Config;
60import eu.siacs.conversations.R;
61import eu.siacs.conversations.databinding.FragmentConversationsOverviewBinding;
62import eu.siacs.conversations.entities.Account;
63import eu.siacs.conversations.entities.Conversation;
64import eu.siacs.conversations.entities.Conversational;
65import eu.siacs.conversations.ui.adapter.ConversationAdapter;
66import eu.siacs.conversations.ui.interfaces.OnConversationArchived;
67import eu.siacs.conversations.ui.interfaces.OnConversationSelected;
68import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
69import eu.siacs.conversations.ui.util.PendingActionHelper;
70import eu.siacs.conversations.ui.util.PendingItem;
71import eu.siacs.conversations.ui.util.ScrollState;
72import eu.siacs.conversations.ui.util.StyledAttributes;
73import eu.siacs.conversations.utils.AccountUtils;
74import eu.siacs.conversations.utils.EasyOnboardingInvite;
75import eu.siacs.conversations.utils.ThemeHelper;
76
77import static androidx.recyclerview.widget.ItemTouchHelper.LEFT;
78import static androidx.recyclerview.widget.ItemTouchHelper.RIGHT;
79
80public class ConversationsOverviewFragment extends XmppFragment {
81
82 private static final String STATE_SCROLL_POSITION = ConversationsOverviewFragment.class.getName()+".scroll_state";
83
84 private final List<Conversation> conversations = new ArrayList<>();
85 private final PendingItem<Conversation> swipedConversation = new PendingItem<>();
86 private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
87 private FragmentConversationsOverviewBinding binding;
88 private ConversationAdapter conversationsAdapter;
89 private XmppActivity activity;
90 private float mSwipeEscapeVelocity = 0f;
91 private PendingActionHelper pendingActionHelper = new PendingActionHelper();
92
93 private ItemTouchHelper.SimpleCallback callback = new ItemTouchHelper.SimpleCallback(0,LEFT|RIGHT) {
94 @Override
95 public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
96 //todo maybe we can manually changing the position of the conversation
97 return false;
98 }
99
100 @Override
101 public float getSwipeEscapeVelocity (float defaultValue) {
102 return mSwipeEscapeVelocity;
103 }
104
105 @Override
106 public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
107 float dX, float dY, int actionState, boolean isCurrentlyActive) {
108 super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
109 if(actionState != ItemTouchHelper.ACTION_STATE_IDLE){
110 Paint paint = new Paint();
111 paint.setColor(StyledAttributes.getColor(activity,R.attr.conversations_overview_background));
112 paint.setStyle(Paint.Style.FILL);
113 c.drawRect(viewHolder.itemView.getLeft(),viewHolder.itemView.getTop()
114 ,viewHolder.itemView.getRight(),viewHolder.itemView.getBottom(), paint);
115 }
116 }
117
118 @Override
119 public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
120 super.clearView(recyclerView, viewHolder);
121 viewHolder.itemView.setAlpha(1f);
122 }
123
124 @Override
125 public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
126 pendingActionHelper.execute();
127 int position = viewHolder.getLayoutPosition();
128 try {
129 swipedConversation.push(conversations.get(position));
130 } catch (IndexOutOfBoundsException e) {
131 return;
132 }
133 conversationsAdapter.remove(swipedConversation.peek(), position);
134 activity.xmppConnectionService.markRead(swipedConversation.peek());
135
136 if (position == 0 && conversationsAdapter.getItemCount() == 0) {
137 final Conversation c = swipedConversation.pop();
138 activity.xmppConnectionService.archiveConversation(c);
139 return;
140 }
141 final boolean formerlySelected = ConversationFragment.getConversation(getActivity()) == swipedConversation.peek();
142 if (activity instanceof OnConversationArchived) {
143 ((OnConversationArchived) activity).onConversationArchived(swipedConversation.peek());
144 }
145 final Conversation c = swipedConversation.peek();
146 final int title;
147 if (c.getMode() == Conversational.MODE_MULTI) {
148 if (c.getMucOptions().isPrivateAndNonAnonymous()) {
149 title = R.string.title_undo_swipe_out_group_chat;
150 } else {
151 title = R.string.title_undo_swipe_out_channel;
152 }
153 } else {
154 title = R.string.title_undo_swipe_out_conversation;
155 }
156
157 final Snackbar snackbar = Snackbar.make(binding.list, title, 5000)
158 .setAction(R.string.undo, v -> {
159 pendingActionHelper.undo();
160 Conversation conversation = swipedConversation.pop();
161 conversationsAdapter.insert(conversation, position);
162 if (formerlySelected) {
163 if (activity instanceof OnConversationSelected) {
164 ((OnConversationSelected) activity).onConversationSelected(c);
165 }
166 }
167 LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
168 if (position > layoutManager.findLastVisibleItemPosition()) {
169 binding.list.smoothScrollToPosition(position);
170 }
171 })
172 .addCallback(new Snackbar.Callback() {
173 @Override
174 public void onDismissed(Snackbar transientBottomBar, int event) {
175 switch (event) {
176 case DISMISS_EVENT_SWIPE:
177 case DISMISS_EVENT_TIMEOUT:
178 pendingActionHelper.execute();
179 break;
180 }
181 }
182 });
183
184 pendingActionHelper.push(() -> {
185 if (snackbar.isShownOrQueued()) {
186 snackbar.dismiss();
187 }
188 final Conversation conversation = swipedConversation.pop();
189 if(conversation != null){
190 if (!conversation.isRead() && conversation.getMode() == Conversation.MODE_SINGLE) {
191 return;
192 }
193 activity.xmppConnectionService.archiveConversation(c);
194 }
195 });
196
197 ThemeHelper.fix(snackbar);
198 snackbar.show();
199 }
200 };
201
202 private ItemTouchHelper touchHelper;
203
204 public static Conversation getSuggestion(Activity activity) {
205 final Conversation exception;
206 Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
207 if (fragment instanceof ConversationsOverviewFragment) {
208 exception = ((ConversationsOverviewFragment) fragment).swipedConversation.peek();
209 } else {
210 exception = null;
211 }
212 return getSuggestion(activity, exception);
213 }
214
215 public static Conversation getSuggestion(Activity activity, Conversation exception) {
216 Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
217 if (fragment instanceof ConversationsOverviewFragment) {
218 List<Conversation> conversations = ((ConversationsOverviewFragment) fragment).conversations;
219 if (conversations.size() > 0) {
220 Conversation suggestion = conversations.get(0);
221 if (suggestion == exception) {
222 if (conversations.size() > 1) {
223 return conversations.get(1);
224 }
225 } else {
226 return suggestion;
227 }
228 }
229 }
230 return null;
231
232 }
233
234 @Override
235 public void onActivityCreated(Bundle savedInstanceState) {
236 super.onActivityCreated(savedInstanceState);
237 if (savedInstanceState == null) {
238 return;
239 }
240 pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
241 }
242
243 @Override
244 public void onAttach(Activity activity) {
245 super.onAttach(activity);
246 if (activity instanceof XmppActivity) {
247 this.activity = (XmppActivity) activity;
248 } else {
249 throw new IllegalStateException("Trying to attach fragment to activity that is not an XmppActivity");
250 }
251 }
252 @Override
253 public void onDestroyView() {
254 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onDestroyView()");
255 super.onDestroyView();
256 this.binding = null;
257 this.conversationsAdapter = null;
258 this.touchHelper = null;
259 }
260 @Override
261 public void onDestroy() {
262 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onDestroy()");
263 super.onDestroy();
264
265 }
266 @Override
267 public void onPause() {
268 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onPause()");
269 pendingActionHelper.execute();
270 super.onPause();
271 }
272
273 @Override
274 public void onDetach() {
275 super.onDetach();
276 this.activity = null;
277 }
278
279 @Override
280 public void onCreate(Bundle savedInstanceState) {
281 super.onCreate(savedInstanceState);
282 setHasOptionsMenu(true);
283 }
284
285 @Override
286 public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
287 this.mSwipeEscapeVelocity = getResources().getDimension(R.dimen.swipe_escape_velocity);
288 this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversations_overview, container, false);
289 this.binding.fab.setOnClickListener((view) -> StartConversationActivity.launch(getActivity()));
290
291 this.conversationsAdapter = new ConversationAdapter(this.activity, this.conversations);
292 this.conversationsAdapter.setConversationClickListener((view, conversation) -> {
293 if (activity instanceof OnConversationSelected) {
294 ((OnConversationSelected) activity).onConversationSelected(conversation);
295 } else {
296 Log.w(ConversationsOverviewFragment.class.getCanonicalName(), "Activity does not implement OnConversationSelected");
297 }
298 });
299 this.binding.list.setAdapter(this.conversationsAdapter);
300 this.binding.list.setLayoutManager(new LinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false));
301 this.touchHelper = new ItemTouchHelper(this.callback);
302 this.touchHelper.attachToRecyclerView(this.binding.list);
303 return binding.getRoot();
304 }
305
306 @Override
307 public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
308 menuInflater.inflate(R.menu.fragment_conversations_overview, menu);
309 AccountUtils.showHideMenuItems(menu);
310 final MenuItem easyOnboardInvite = menu.findItem(R.id.action_easy_invite);
311 easyOnboardInvite.setVisible(EasyOnboardingInvite.anyHasSupport(activity == null ? null : activity.xmppConnectionService));
312 }
313
314 @Override
315 public void onBackendConnected() {
316 refresh();
317 }
318
319 @Override
320 public void onSaveInstanceState(Bundle bundle) {
321 super.onSaveInstanceState(bundle);
322 ScrollState scrollState = getScrollState();
323 if (scrollState != null) {
324 bundle.putParcelable(STATE_SCROLL_POSITION, scrollState);
325 }
326 }
327
328 private ScrollState getScrollState() {
329 if (this.binding == null) {
330 return null;
331 }
332 LinearLayoutManager layoutManager = (LinearLayoutManager) this.binding.list.getLayoutManager();
333 int position = layoutManager.findFirstVisibleItemPosition();
334 final View view = this.binding.list.getChildAt(0);
335 if (view != null) {
336 return new ScrollState(position,view.getTop());
337 } else {
338 return new ScrollState(position, 0);
339 }
340 }
341
342 @Override
343 public void onStart() {
344 super.onStart();
345 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onStart()");
346 if (activity.xmppConnectionService != null) {
347 refresh();
348 }
349 }
350
351 @Override
352 public void onResume() {
353 super.onResume();
354 Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onResume()");
355 }
356
357 @Override
358 public boolean onOptionsItemSelected(final MenuItem item) {
359 if (MenuDoubleTabUtil.shouldIgnoreTap()) {
360 return false;
361 }
362 switch (item.getItemId()) {
363 case R.id.action_search:
364 startActivity(new Intent(getActivity(), SearchActivity.class));
365 return true;
366 case R.id.action_easy_invite:
367 selectAccountToStartEasyInvite();
368 return true;
369 }
370 return super.onOptionsItemSelected(item);
371 }
372
373 private void selectAccountToStartEasyInvite() {
374 final List<Account> accounts = EasyOnboardingInvite.getSupportingAccounts(activity.xmppConnectionService);
375 if (accounts.size() == 0) {
376 //This can technically happen if opening the menu item races with accounts reconnecting or something
377 Toast.makeText(getActivity(),R.string.no_active_accounts_support_this, Toast.LENGTH_LONG).show();
378 } else if (accounts.size() == 1) {
379 openEasyInviteScreen(accounts.get(0));
380 } else {
381 final AtomicReference<Account> selectedAccount = new AtomicReference<>(accounts.get(0));
382 final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(activity);
383 alertDialogBuilder.setTitle(R.string.choose_account);
384 final String[] asStrings = Collections2.transform(accounts, a -> a.getJid().asBareJid().toEscapedString()).toArray(new String[0]);
385 alertDialogBuilder.setSingleChoiceItems(asStrings, 0, (dialog, which) -> selectedAccount.set(accounts.get(which)));
386 alertDialogBuilder.setNegativeButton(R.string.cancel, null);
387 alertDialogBuilder.setPositiveButton(R.string.ok, (dialog, which) -> openEasyInviteScreen(selectedAccount.get()));
388 alertDialogBuilder.create().show();
389 }
390 }
391
392 private void openEasyInviteScreen(final Account account) {
393 EasyOnboardingInviteActivity.launch(account, activity);
394 }
395
396 @Override
397 void refresh() {
398 if (this.binding == null || this.activity == null) {
399 Log.d(Config.LOGTAG,"ConversationsOverviewFragment.refresh() skipped updated because view binding or activity was null");
400 return;
401 }
402 this.activity.xmppConnectionService.populateWithOrderedConversations(this.conversations);
403 Conversation removed = this.swipedConversation.peek();
404 if (removed != null) {
405 if (removed.isRead()) {
406 this.conversations.remove(removed);
407 } else {
408 pendingActionHelper.execute();
409 }
410 }
411 this.conversationsAdapter.notifyDataSetChanged();
412 ScrollState scrollState = pendingScrollState.pop();
413 if (scrollState != null) {
414 setScrollPosition(scrollState);
415 }
416 }
417
418 private void setScrollPosition(ScrollState scrollPosition) {
419 if (scrollPosition != null) {
420 LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
421 layoutManager.scrollToPositionWithOffset(scrollPosition.position, scrollPosition.offset);
422 }
423 }
424}