name intentionally unused variable as 'ignored'
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / activity / MainActivity.java
1 /*
2  * Copyright © 2019 Damyan Ivanov.
3  * This file is part of MoLe.
4  * MoLe is free software: you can distribute it and/or modify it
5  * under the term of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your opinion), any later version.
8  *
9  * MoLe is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License terms for details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
16  */
17
18 package net.ktnx.mobileledger.ui.activity;
19
20 import android.content.Intent;
21 import android.content.pm.PackageInfo;
22 import android.content.pm.ShortcutInfo;
23 import android.content.pm.ShortcutManager;
24 import android.content.res.ColorStateList;
25 import android.graphics.Color;
26 import android.graphics.drawable.Icon;
27 import android.os.AsyncTask;
28 import android.os.Build;
29 import android.os.Bundle;
30 import android.util.Log;
31 import android.view.View;
32 import android.view.ViewGroup;
33 import android.view.ViewPropertyAnimator;
34 import android.view.animation.Animation;
35 import android.view.animation.AnimationUtils;
36 import android.widget.LinearLayout;
37 import android.widget.ProgressBar;
38 import android.widget.TextView;
39 import android.widget.Toast;
40
41 import com.google.android.material.floatingactionbutton.FloatingActionButton;
42
43 import net.ktnx.mobileledger.R;
44 import net.ktnx.mobileledger.async.DbOpQueue;
45 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
46 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
47 import net.ktnx.mobileledger.model.Data;
48 import net.ktnx.mobileledger.model.LedgerAccount;
49 import net.ktnx.mobileledger.model.MobileLedgerProfile;
50 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryAdapter;
51 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
52 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryViewModel;
53 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
54 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
55 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
56 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
57 import net.ktnx.mobileledger.utils.Colors;
58 import net.ktnx.mobileledger.utils.LockHolder;
59 import net.ktnx.mobileledger.utils.MLDB;
60
61 import org.jetbrains.annotations.NotNull;
62
63 import java.lang.ref.WeakReference;
64 import java.text.DateFormat;
65 import java.util.ArrayList;
66 import java.util.Date;
67 import java.util.List;
68 import java.util.Observer;
69
70 import androidx.appcompat.app.ActionBarDrawerToggle;
71 import androidx.appcompat.widget.Toolbar;
72 import androidx.core.view.GravityCompat;
73 import androidx.drawerlayout.widget.DrawerLayout;
74 import androidx.fragment.app.Fragment;
75 import androidx.fragment.app.FragmentManager;
76 import androidx.fragment.app.FragmentPagerAdapter;
77 import androidx.recyclerview.widget.LinearLayoutManager;
78 import androidx.recyclerview.widget.RecyclerView;
79 import androidx.viewpager.widget.ViewPager;
80
81 import static net.ktnx.mobileledger.utils.Logger.debug;
82
83 public class MainActivity extends ProfileThemedActivity {
84     public static final String STATE_CURRENT_PAGE = "current_page";
85     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
86     public static final String STATE_ACC_FILTER = "account_filter";
87     public AccountSummaryFragment mAccountSummaryFragment;
88     DrawerLayout drawer;
89     private LinearLayout profileListContainer;
90     private View profileListHeadArrow, profileListHeadMore, profileListHeadCancel;
91     private FragmentManager fragmentManager;
92     private RetrieveTransactionsTask retrieveTransactionsTask;
93     private View bTransactionListCancelDownload;
94     private ProgressBar progressBar;
95     private LinearLayout progressLayout;
96     private SectionsPagerAdapter mSectionsPagerAdapter;
97     private ViewPager mViewPager;
98     private FloatingActionButton fab;
99     private boolean profileListExpanded = false;
100     private ProfilesRecyclerViewAdapter mProfileListAdapter;
101     private int mCurrentPage;
102     private String mAccountFilter;
103     private boolean mBackMeansToAccountList = false;
104     private Observer profileObserver;
105     private Observer profilesObserver;
106     private Toolbar mToolbar;
107     private DrawerLayout.SimpleDrawerListener drawerListener;
108     private ActionBarDrawerToggle barDrawerToggle;
109     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
110     private Observer editingProfilesObserver;
111     @Override
112     protected void onStart() {
113         super.onStart();
114
115         debug("flow", "MainActivity.onStart()");
116         mViewPager.setCurrentItem(mCurrentPage, false);
117         if (mAccountFilter != null) showTransactionsFragment(mAccountFilter);
118         else Data.accountFilter.setValue(null);
119
120     }
121     @Override
122     protected void onSaveInstanceState(@NotNull Bundle outState) {
123         super.onSaveInstanceState(outState);
124         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
125         if (mAccountFilter != null) outState.putString(STATE_ACC_FILTER, mAccountFilter);
126     }
127     @Override
128     protected void onDestroy() {
129         mSectionsPagerAdapter = null;
130         Data.profile.deleteObserver(profileObserver);
131         profileObserver = null;
132         Data.profiles.deleteObserver(profilesObserver);
133         profilesObserver = null;
134         RecyclerView root = findViewById(R.id.nav_profile_list);
135         if (root != null) root.setAdapter(null);
136         if (drawer != null) drawer.removeDrawerListener(drawerListener);
137         drawerListener = null;
138         if (drawer != null) drawer.removeDrawerListener(barDrawerToggle);
139         barDrawerToggle = null;
140         if (mViewPager != null) mViewPager.removeOnPageChangeListener(pageChangeListener);
141         pageChangeListener = null;
142         if (mProfileListAdapter != null)
143             mProfileListAdapter.deleteEditingProfilesObserver(editingProfilesObserver);
144         editingProfilesObserver = null;
145         super.onDestroy();
146     }
147     @Override
148     protected void onCreate(Bundle savedInstanceState) {
149         super.onCreate(savedInstanceState);
150         debug("flow", "MainActivity.onCreate()");
151         int profileColor = Data.retrieveCurrentThemeIdFromDb();
152         Colors.setupTheme(this, profileColor);
153         Colors.profileThemeId = profileColor;
154         setContentView(R.layout.activity_main);
155
156         fab = findViewById(R.id.btn_add_transaction);
157         profileListContainer = findViewById(R.id.nav_profile_list_container);
158         profileListHeadArrow = findViewById(R.id.nav_profiles_arrow);
159         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
160         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
161         profileListHeadMoreAndCancel = findViewById(R.id.nav_profile_list_head_buttons);
162         drawer = findViewById(R.id.drawer_layout);
163         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
164         progressBar = findViewById(R.id.transaction_list_progress_bar);
165         progressLayout = findViewById(R.id.transaction_progress_layout);
166         fragmentManager = getSupportFragmentManager();
167         mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
168         mViewPager = findViewById(R.id.root_frame);
169
170         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
171         if (extra != null && savedInstanceState == null) savedInstanceState = extra;
172
173
174         mToolbar = findViewById(R.id.toolbar);
175         setSupportActionBar(mToolbar);
176
177         if (profileObserver == null) {
178             profileObserver = (o, arg) -> onProfileChanged(arg);
179             Data.profile.addObserver(profileObserver);
180         }
181
182         if (profilesObserver == null) {
183             profilesObserver = (o, arg) -> onProfileListChanged(arg);
184             Data.profiles.addObserver(profilesObserver);
185         }
186
187         if (barDrawerToggle == null) {
188             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
189                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
190             drawer.addDrawerListener(barDrawerToggle);
191         }
192         barDrawerToggle.syncState();
193
194         TextView ver = drawer.findViewById(R.id.drawer_version_text);
195
196         try {
197             PackageInfo pi =
198                     getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
199             ver.setText(pi.versionName);
200         }
201         catch (Exception e) {
202             e.printStackTrace();
203         }
204
205         if (progressBar == null)
206             throw new RuntimeException("Can't get hold on the transaction value progress bar");
207         if (progressLayout == null) throw new RuntimeException(
208                 "Can't get hold on the transaction value progress bar layout");
209
210         markDrawerItemCurrent(R.id.nav_account_summary);
211
212         mViewPager.setAdapter(mSectionsPagerAdapter);
213
214         if (pageChangeListener == null) {
215             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
216                 @Override
217                 public void onPageSelected(int position) {
218                     switch (position) {
219                         case 0:
220                             markDrawerItemCurrent(R.id.nav_account_summary);
221                             break;
222                         case 1:
223                             markDrawerItemCurrent(R.id.nav_latest_transactions);
224                             break;
225                         default:
226                             Log.e("MainActivity",
227                                     String.format("Unexpected page index %d", position));
228                     }
229
230                     super.onPageSelected(position);
231                 }
232             };
233             mViewPager.addOnPageChangeListener(pageChangeListener);
234         }
235
236         mCurrentPage = 0;
237         if (savedInstanceState != null) {
238             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
239             if (currentPage != -1) {
240                 mCurrentPage = currentPage;
241             }
242             mAccountFilter = savedInstanceState.getString(STATE_ACC_FILTER, null);
243         }
244         else mAccountFilter = null;
245
246         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
247
248         findViewById(R.id.btn_no_profiles_add)
249                 .setOnClickListener(v -> startEditProfileActivity(null));
250
251         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
252
253         findViewById(R.id.nav_new_profile_button)
254                 .setOnClickListener(v -> startEditProfileActivity(null));
255
256         RecyclerView root = findViewById(R.id.nav_profile_list);
257         if (root == null)
258             throw new RuntimeException("Can't get hold on the transaction value view");
259
260         if (mProfileListAdapter == null) mProfileListAdapter = new ProfilesRecyclerViewAdapter();
261         root.setAdapter(mProfileListAdapter);
262
263         if (editingProfilesObserver == null) {
264             editingProfilesObserver = (o, arg) -> {
265                 if (mProfileListAdapter.isEditingProfiles()) {
266                     profileListHeadArrow.clearAnimation();
267                     profileListHeadArrow.setVisibility(View.GONE);
268                     profileListHeadMore.setVisibility(View.GONE);
269                     profileListHeadMore
270                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_out));
271                     profileListHeadCancel.setVisibility(View.VISIBLE);
272                     profileListHeadCancel
273                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
274                 }
275                 else {
276                     profileListHeadArrow.setRotation(180f);
277                     profileListHeadArrow.setVisibility(View.VISIBLE);
278                     profileListHeadCancel.setVisibility(View.GONE);
279                     profileListHeadCancel
280                             .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_out));
281                     profileListHeadMore.setVisibility(View.GONE);
282                     if (profileListExpanded) {
283                         profileListHeadMore.setVisibility(View.VISIBLE);
284                         profileListHeadMore
285                                 .startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
286                     }
287                     else profileListHeadMore.setVisibility(View.GONE);
288                 }
289             };
290             mProfileListAdapter.addEditingProfilesObserver(editingProfilesObserver);
291         }
292
293         LinearLayoutManager llm = new LinearLayoutManager(this);
294
295         llm.setOrientation(RecyclerView.VERTICAL);
296         root.setLayoutManager(llm);
297
298         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
299         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
300         profileListHeadMoreAndCancel
301                 .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
302
303         if (drawerListener == null) {
304             drawerListener = new DrawerLayout.SimpleDrawerListener() {
305                 @Override
306                 public void onDrawerClosed(View drawerView) {
307                     super.onDrawerClosed(drawerView);
308                     collapseProfileList();
309                 }
310             };
311             drawer.addDrawerListener(drawerListener);
312         }
313
314         findViewById(R.id.nav_profile_list_head_layout)
315                 .setOnClickListener(this::navProfilesHeadClicked);
316         findViewById(R.id.nav_profiles_label).setOnClickListener(this::navProfilesHeadClicked);
317         boolean initialStart = Data.profile.get() == null;
318         setupProfile();
319         if (!initialStart) onProfileChanged(null);
320
321         updateLastUpdateTextFromDB();
322     }
323     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
324         long now = new Date().getTime();
325         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
326             if (lastUpdate == null) debug("db::", "WEB data never fetched. scheduling a fetch");
327             else debug("db",
328                     String.format("WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
329                             lastUpdate.getTime() / 1000f, now / 1000f));
330
331             scheduleTransactionListRetrieval();
332         }
333     }
334     private void createShortcuts() {
335         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) return;
336
337         List<ShortcutInfo> shortcuts = new ArrayList<>();
338         try (LockHolder ignored = Data.profiles.lockForReading()) {
339             for (int i = 0; i < Data.profiles.size(); i++) {
340                 MobileLedgerProfile p = Data.profiles.get(i);
341                 if (!p.isPostingPermitted()) continue;
342
343                 ShortcutInfo si = new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid())
344                         .setShortLabel(p.getName())
345                         .setIcon(Icon.createWithResource(this, R.drawable.svg_thick_plus_white))
346                         .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
347                                 NewTransactionActivity.class).putExtra("profile_uuid", p.getUuid()))
348                         .setRank(i).build();
349                 shortcuts.add(si);
350             }
351         }
352         ShortcutManager sm = getSystemService(ShortcutManager.class);
353         sm.setDynamicShortcuts(shortcuts);
354     }
355     private void onProfileListChanged(Object arg) {
356         findViewById(R.id.nav_profile_list).setMinimumHeight(
357                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
358                        Data.profiles.size()));
359
360         debug("profiles", "profile list changed");
361         if (arg == null) mProfileListAdapter.notifyDataSetChanged();
362         else mProfileListAdapter.notifyItemChanged((int) arg);
363
364         createShortcuts();
365     }
366     private void onProfileChanged(Object arg) {
367         MobileLedgerProfile profile = Data.profile.get();
368         MainActivity.this.runOnUiThread(() -> {
369
370             boolean haveProfile = profile != null;
371             findViewById(R.id.no_profiles_layout)
372                     .setVisibility(haveProfile ? View.GONE : View.VISIBLE);
373             findViewById(R.id.pager_layout)
374                     .setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
375
376             if (profile == null) MainActivity.this.setTitle(R.string.app_name);
377             else MainActivity.this.setTitle(profile.getName());
378             MainActivity.this.updateLastUpdateTextFromDB();
379             int old_index = -1;
380             int new_index = -1;
381             if (arg != null) {
382                 MobileLedgerProfile old = (MobileLedgerProfile) arg;
383                 old_index = Data.getProfileIndex(old);
384                 new_index = Data.getProfileIndex(profile);
385             }
386
387             if ((old_index != -1) && (new_index != -1)) {
388                 mProfileListAdapter.notifyItemChanged(old_index);
389                 mProfileListAdapter.notifyItemChanged(new_index);
390             }
391             else mProfileListAdapter.notifyDataSetChanged();
392
393             MainActivity.this.collapseProfileList();
394
395             int newProfileTheme = (profile == null) ? -1 : profile.getThemeId();
396             if (newProfileTheme != Colors.profileThemeId) {
397                 debug("profiles", String.format("profile theme %d → %d", Colors.profileThemeId,
398                         newProfileTheme));
399                 MainActivity.this.profileThemeChanged();
400                 Colors.profileThemeId = newProfileTheme;
401                 // profileThemeChanged would restart the activity, so no need to reload the
402                 // data sets below
403                 return;
404             }
405             drawer.closeDrawers();
406
407             Data.transactions.clear();
408             debug("transactions", "requesting list reload");
409             TransactionListViewModel.scheduleTransactionListReload();
410
411             Data.accounts.clear();
412             AccountSummaryViewModel.scheduleAccountListReload();
413
414             if (profile == null) {
415                 mToolbar.setSubtitle(null);
416                 fab.hide();
417             }
418             else {
419                 if (profile.isPostingPermitted()) {
420                     mToolbar.setSubtitle(null);
421                     fab.show();
422                 }
423                 else {
424                     mToolbar.setSubtitle(R.string.profile_subitlte_read_only);
425                     fab.hide();
426                 }
427             }
428
429             updateLastUpdateTextFromDB();
430         });
431     }
432     private void updateLastUpdateDisplay(Date newValue) {
433         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
434         TextView v = findViewById(R.id.transactions_last_update);
435         if (newValue == null) {
436             l.setVisibility(View.INVISIBLE);
437             debug("main", "no last update date :(");
438         }
439         else {
440             final String text = DateFormat.getDateTimeInstance().format(newValue);
441             v.setText(text);
442             l.setVisibility(View.VISIBLE);
443             debug("main", String.format("Date formatted: %s", text));
444         }
445
446         scheduleDataRetrievalIfStale(newValue);
447     }
448     @Override
449     public void finish() {
450         if (profilesObserver != null) {
451             Data.profiles.deleteObserver(profilesObserver);
452             profilesObserver = null;
453         }
454
455         if (profileObserver != null) {
456             Data.profile.deleteObserver(profileObserver);
457             profileObserver = null;
458         }
459
460         super.finish();
461     }
462     private void profileThemeChanged() {
463         setupProfileColors();
464
465         Bundle bundle = new Bundle();
466         onSaveInstanceState(bundle);
467         // restart activity to reflect theme change
468         finish();
469         Intent intent = new Intent(this, this.getClass());
470         intent.putExtra(BUNDLE_SAVED_STATE, bundle);
471         startActivity(intent);
472     }
473     public void startEditProfileActivity(MobileLedgerProfile profile) {
474         Intent intent = new Intent(this, ProfileDetailActivity.class);
475         Bundle args = new Bundle();
476         if (profile != null) {
477             int index = Data.getProfileIndex(profile);
478             if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
479         }
480         intent.putExtras(args);
481         startActivity(intent, args);
482     }
483     private void setupProfile() {
484         String profileUUID = MLDB.getOption(MLDB.OPT_PROFILE_UUID, null);
485         MobileLedgerProfile profile;
486
487         profile = Data.getProfile(profileUUID);
488
489         if (Data.profiles.isEmpty()) {
490             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
491             findViewById(R.id.pager_layout).setVisibility(View.GONE);
492             return;
493         }
494
495         findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
496         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
497
498         if (profile == null) profile = Data.profiles.get(0);
499
500         if (profile == null) throw new AssertionError("profile must have a value");
501
502         Data.setCurrentProfile(profile);
503     }
504     public void fabNewTransactionClicked(View view) {
505         Intent intent = new Intent(this, NewTransactionActivity.class);
506         startActivity(intent);
507         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
508     }
509     public void navSettingsClicked(View view) {
510         Intent intent = new Intent(this, SettingsActivity.class);
511         startActivity(intent);
512         drawer.closeDrawers();
513     }
514     public void markDrawerItemCurrent(int id) {
515         TextView item = drawer.findViewById(id);
516         item.setBackgroundColor(Colors.tableRowDarkBG);
517
518         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
519         for (int i = 0; i < actions.getChildCount(); i++) {
520             View view = actions.getChildAt(i);
521             if (view.getId() != id) {
522                 view.setBackgroundColor(Color.TRANSPARENT);
523             }
524         }
525     }
526     public void onAccountSummaryClicked(View view) {
527         drawer.closeDrawers();
528
529         showAccountSummaryFragment();
530     }
531     private void showAccountSummaryFragment() {
532         mViewPager.setCurrentItem(0, true);
533         Data.accountFilter.setValue(null);
534     }
535     public void onLatestTransactionsClicked(View view) {
536         drawer.closeDrawers();
537
538         showTransactionsFragment((String) null);
539     }
540     private void showTransactionsFragment(String accName) {
541         Data.accountFilter.setValue(accName);
542         mViewPager.setCurrentItem(1, true);
543     }
544     private void showTransactionsFragment(LedgerAccount account) {
545         showTransactionsFragment((account == null) ? (String) null : account.getName());
546     }
547     public void showAccountTransactions(LedgerAccount account) {
548         mBackMeansToAccountList = true;
549         showTransactionsFragment(account);
550     }
551     @Override
552     public void onBackPressed() {
553         DrawerLayout drawer = findViewById(R.id.drawer_layout);
554         if (drawer.isDrawerOpen(GravityCompat.START)) {
555             drawer.closeDrawer(GravityCompat.START);
556         }
557         else {
558             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
559                 Data.accountFilter.setValue(null);
560                 showAccountSummaryFragment();
561                 mBackMeansToAccountList = false;
562             }
563             else {
564                 debug("fragments", String.format("manager stack: %d",
565                         fragmentManager.getBackStackEntryCount()));
566
567                 super.onBackPressed();
568             }
569         }
570     }
571     public void updateLastUpdateTextFromDB() {
572         final MobileLedgerProfile profile = Data.profile.get();
573         long last_update = (profile != null) ? profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L) : 0;
574
575         debug("transactions", String.format("Last update = %d", last_update));
576         if (last_update == 0) {
577             Data.lastUpdateDate.postValue(null);
578         }
579         else {
580             Data.lastUpdateDate.postValue(new Date(last_update));
581         }
582     }
583     public void scheduleTransactionListRetrieval() {
584         if (Data.profile.get() == null) return;
585
586         retrieveTransactionsTask = new RetrieveTransactionsTask(new WeakReference<>(this));
587
588         retrieveTransactionsTask.execute();
589     }
590     public void onStopTransactionRefreshClick(View view) {
591         debug("interactive", "Cancelling transactions refresh");
592         if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
593         bTransactionListCancelDownload.setEnabled(false);
594     }
595     public void onRetrieveDone(String error) {
596         progressLayout.setVisibility(View.GONE);
597
598         if (error == null) {
599             updateLastUpdateTextFromDB();
600
601             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
602             TransactionListViewModel.scheduleTransactionListReload();
603         }
604         else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
605     }
606     public void onRetrieveStart() {
607         bTransactionListCancelDownload.setEnabled(true);
608         progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
609         progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
610         progressBar.setIndeterminate(true);
611         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
612         else progressBar.setProgress(0);
613         progressLayout.setVisibility(View.VISIBLE);
614     }
615     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
616         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
617             (progress.getTotal() == 0))
618         {
619             progressBar.setIndeterminate(true);
620         }
621         else {
622             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
623                 progressBar.setMin(0);
624             }
625             progressBar.setMax(progress.getTotal());
626             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
627                 progressBar.setProgress(progress.getProgress(), true);
628             }
629             else progressBar.setProgress(progress.getProgress());
630             progressBar.setIndeterminate(false);
631         }
632     }
633     public void fabShouldShow() {
634         MobileLedgerProfile profile = Data.profile.get();
635         if ((profile != null) && profile.isPostingPermitted()) fab.show();
636     }
637     public void navProfilesHeadClicked(View view) {
638         if (profileListExpanded) {
639             collapseProfileList();
640         }
641         else {
642             expandProfileList();
643         }
644     }
645     private void expandProfileList() {
646         profileListExpanded = true;
647
648
649         profileListContainer.setVisibility(View.VISIBLE);
650         profileListContainer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_down));
651         profileListHeadArrow.startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180));
652         profileListHeadMore.setVisibility(View.VISIBLE);
653         profileListHeadMore.startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
654         findViewById(R.id.nav_profile_list).setMinimumHeight(
655                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
656                        Data.profiles.size()));
657     }
658     private void collapseProfileList() {
659         boolean wasExpanded = profileListExpanded;
660         profileListExpanded = false;
661
662         if (wasExpanded) {
663             final Animation animation = AnimationUtils.loadAnimation(this, R.anim.slide_up);
664             animation.setAnimationListener(new Animation.AnimationListener() {
665                 @Override
666                 public void onAnimationStart(Animation animation) {
667
668                 }
669                 @Override
670                 public void onAnimationEnd(Animation animation) {
671                     profileListContainer.setVisibility(View.GONE);
672                 }
673                 @Override
674                 public void onAnimationRepeat(Animation animation) {
675
676                 }
677             });
678             mProfileListAdapter.stopEditingProfiles();
679
680             profileListContainer.startAnimation(animation);
681             profileListHeadArrow.setRotation(0f);
682             profileListHeadArrow
683                     .startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180_back));
684             final Animation moreAnimation = AnimationUtils.loadAnimation(this, R.anim.fade_out);
685             moreAnimation.setAnimationListener(new Animation.AnimationListener() {
686                 @Override
687                 public void onAnimationStart(Animation animation) {
688                 }
689                 @Override
690                 public void onAnimationEnd(Animation animation) {
691                     profileListHeadMore.setVisibility(View.GONE);
692                 }
693                 @Override
694                 public void onAnimationRepeat(Animation animation) {
695                 }
696             });
697             profileListHeadMore.startAnimation(moreAnimation);
698         }
699         else {
700             profileListContainer.setVisibility(View.GONE);
701             profileListHeadArrow.setRotation(0f);
702             profileListHeadMore.setVisibility(View.GONE);
703         }
704     }
705     public void onAccountSummaryRowViewClicked(View view) {
706         ViewGroup row;
707         if (view.getId() == R.id.account_expander) row = (ViewGroup) view.getParent().getParent();
708         else row = (ViewGroup) view.getParent();
709
710         LedgerAccount acc = (LedgerAccount) row.getTag();
711         switch (view.getId()) {
712             case R.id.account_row_acc_name:
713             case R.id.account_expander:
714             case R.id.account_expander_container:
715                 debug("accounts", "Account expander clicked");
716                 if (!acc.hasSubAccounts()) return;
717
718                 boolean wasExpanded = acc.isExpanded();
719
720                 View arrow = row.findViewById(R.id.account_expander_container);
721
722                 arrow.clearAnimation();
723                 ViewPropertyAnimator animator = arrow.animate();
724
725                 acc.toggleExpanded();
726                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
727                         new Object[]{acc.isExpanded(), acc.getName(), Data.profile.get().getUuid()
728                         });
729
730                 if (wasExpanded) {
731                     debug("accounts", String.format("Collapsing account '%s'", acc.getName()));
732                     arrow.setRotation(0);
733                     animator.rotationBy(180);
734
735                     // removing all child accounts from the view
736                     int start = -1, count = 0;
737                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
738                         for (int i = 0; i < Data.accounts.size(); i++) {
739                             if (acc.isParentOf(Data.accounts.get(i))) {
740 //                                debug("accounts", String.format("Found a child '%s' at position %d",
741 //                                        Data.accounts.get(i).getName(), i));
742                                 if (start == -1) {
743                                     start = i;
744                                 }
745                                 count++;
746                             }
747                             else {
748                                 if (start != -1) {
749 //                                    debug("accounts",
750 //                                            String.format("Found a non-child '%s' at position %d",
751 //                                                    Data.accounts.get(i).getName(), i));
752                                     break;
753                                 }
754                             }
755                         }
756
757                         if (start != -1) {
758                             for (int j = 0; j < count; j++) {
759 //                                debug("accounts", String.format("Removing item %d: %s", start + j,
760 //                                        Data.accounts.get(start).getName()));
761                                 Data.accounts.removeQuietly(start);
762                             }
763
764                             mAccountSummaryFragment.modelAdapter
765                                     .notifyItemRangeRemoved(start, count);
766                         }
767                     }
768                 }
769                 else {
770                     debug("accounts", String.format("Expanding account '%s'", acc.getName()));
771                     arrow.setRotation(180);
772                     animator.rotationBy(-180);
773                     List<LedgerAccount> children =
774                             Data.profile.get().loadVisibleChildAccountsOf(acc);
775                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
776                         int parentPos = Data.accounts.indexOf(acc);
777                         if (parentPos != -1) {
778                             // may have disappeared in a concurrent refresh operation
779                             Data.accounts.addAllQuietly(parentPos + 1, children);
780                             mAccountSummaryFragment.modelAdapter
781                                     .notifyItemRangeInserted(parentPos + 1, children.size());
782                         }
783                     }
784                 }
785                 break;
786             case R.id.account_row_acc_amounts:
787                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
788                     acc.toggleAmountsExpanded();
789                     DbOpQueue
790                             .add("update accounts set amounts_expanded=? where name=? and profile=?",
791                                     new Object[]{acc.amountsExpanded(), acc.getName(),
792                                                  Data.profile.get().getUuid()
793                                     });
794                     Data.accounts.triggerItemChangedNotification(acc);
795                 }
796                 break;
797         }
798     }
799
800     public class SectionsPagerAdapter extends FragmentPagerAdapter {
801
802         public SectionsPagerAdapter(FragmentManager fm) {
803             super(fm);
804         }
805
806         @NotNull
807         @Override
808         public Fragment getItem(int position) {
809             debug("main", String.format("Switching to fragment %d", position));
810             switch (position) {
811                 case 0:
812 //                    debug("flow", "Creating account summary fragment");
813                     return mAccountSummaryFragment = new AccountSummaryFragment();
814                 case 1:
815                     return new TransactionListFragment();
816                 default:
817                     throw new IllegalStateException(
818                             String.format("Unexpected fragment index: " + "%d", position));
819             }
820         }
821
822         @Override
823         public int getCount() {
824             return 2;
825         }
826     }
827 }