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.SharedPreferences;
  22 import android.content.pm.PackageInfo;
  23 import android.content.pm.ShortcutInfo;
  24 import android.content.pm.ShortcutManager;
  25 import android.content.res.ColorStateList;
  26 import android.graphics.Color;
  27 import android.graphics.drawable.Icon;
  28 import android.os.AsyncTask;
  29 import android.os.Build;
  30 import android.os.Bundle;
  31 import android.util.Log;
  32 import android.view.View;
  33 import android.view.ViewGroup;
  34 import android.view.ViewPropertyAnimator;
  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.GetOptCallback;
  59 import net.ktnx.mobileledger.utils.LockHolder;
  60 import net.ktnx.mobileledger.utils.MLDB;
  61
  62 import org.jetbrains.annotations.NotNull;
  63
  64 import java.text.DateFormat;
  65 import java.util.ArrayList;
  66 import java.util.Date;
  67 import java.util.List;
  68 import java.util.Locale;
  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     private static final String PREF_THEME_ID = "themeId";
  88     public AccountSummaryFragment mAccountSummaryFragment;
  89     DrawerLayout drawer;
  90     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  91     private FragmentManager fragmentManager;
  92     private View bTransactionListCancelDownload;
  93     private SectionsPagerAdapter mSectionsPagerAdapter;
  94     private ViewPager mViewPager;
  95     private FloatingActionButton fab;
  96     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  97     private int mCurrentPage;
  98     private String mAccountFilter;
  99     private boolean mBackMeansToAccountList = false;
 100     private Toolbar mToolbar;
 101     private DrawerLayout.SimpleDrawerListener drawerListener;
 102     private ActionBarDrawerToggle barDrawerToggle;
 103     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
 104     private MobileLedgerProfile profile;
 105     @Override
 106     protected void onStart() {
 107         super.onStart();
 108
 109         debug("flow", String.format(Locale.ENGLISH,
 110                 "MainActivity.onStart(), currentPage is %d, accountFilter is %s", mCurrentPage,
 111                 (mAccountFilter == null) ? "<NULL>" : mAccountFilter));
 112         mViewPager.setCurrentItem(mCurrentPage, false);
 113         if (mAccountFilter != null) showTransactionsFragment(mAccountFilter);
 114         else Data.accountFilter.setValue(null);
 115
 116     }
 117     @Override
 118     protected void onSaveInstanceState(@NotNull Bundle outState) {
 119         super.onSaveInstanceState(outState);
 120         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 121         if (mAccountFilter != null) outState.putString(STATE_ACC_FILTER, mAccountFilter);
 122     }
 123     @Override
 124     protected void onDestroy() {
 125         mSectionsPagerAdapter = null;
 126         RecyclerView root = findViewById(R.id.nav_profile_list);
 127         if (root != null) root.setAdapter(null);
 128         if (drawer != null) drawer.removeDrawerListener(drawerListener);
 129         drawerListener = null;
 130         if (drawer != null) drawer.removeDrawerListener(barDrawerToggle);
 131         barDrawerToggle = null;
 132         if (mViewPager != null) mViewPager.removeOnPageChangeListener(pageChangeListener);
 133         pageChangeListener = null;
 134         super.onDestroy();
 135     }
 136     @Override
 137     protected void setupProfileColors() {
 138         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 139         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 140         if (profileColor == -2) profileColor = Data.retrieveCurrentThemeIdFromDb();
 141         Colors.setupTheme(this, profileColor);
 142         Colors.profileThemeId = profileColor;
 143         storeThemeIdInPrefs(profileColor);
 144     }
 145     @Override
 146     protected void onResume() {
 147         super.onResume();
 148         fabShouldShow();
 149     }
 150     @Override
 151     protected void onCreate(Bundle savedInstanceState) {
 152         super.onCreate(savedInstanceState);
 153         debug("flow", "MainActivity.onCreate()");
 154         setContentView(R.layout.activity_main);
 155
 156         fab = findViewById(R.id.btn_add_transaction);
 157         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 158         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 159         LinearLayout profileListHeadMoreAndCancel =
 160                 findViewById(R.id.nav_profile_list_head_buttons);
 161         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 162         drawer = findViewById(R.id.drawer_layout);
 163         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 164         fragmentManager = getSupportFragmentManager();
 165         mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
 166         mViewPager = findViewById(R.id.root_frame);
 167
 168         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 169         if (extra != null && savedInstanceState == null) savedInstanceState = extra;
 170
 171
 172         mToolbar = findViewById(R.id.toolbar);
 173         setSupportActionBar(mToolbar);
 174
 175         Data.profile.observe(this, this::onProfileChanged);
 176
 177         Data.profiles.observe(this, this::onProfileListChanged);
 178
 179         if (barDrawerToggle == null) {
 180             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 181                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 182             drawer.addDrawerListener(barDrawerToggle);
 183         }
 184         barDrawerToggle.syncState();
 185
 186         TextView ver = drawer.findViewById(R.id.drawer_version_text);
 187
 188         try {
 189             PackageInfo pi =
 190                     getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
 191             ver.setText(pi.versionName);
 192         }
 193         catch (Exception e) {
 194             e.printStackTrace();
 195         }
 196
 197         markDrawerItemCurrent(R.id.nav_account_summary);
 198
 199         mViewPager.setAdapter(mSectionsPagerAdapter);
 200
 201         if (pageChangeListener == null) {
 202             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 203                 @Override
 204                 public void onPageSelected(int position) {
 205                     mCurrentPage = position;
 206                     switch (position) {
 207                         case 0:
 208                             markDrawerItemCurrent(R.id.nav_account_summary);
 209                             break;
 210                         case 1:
 211                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 212                             break;
 213                         default:
 214                             Log.e("MainActivity",
 215                                     String.format("Unexpected page index %d", position));
 216                     }
 217
 218                     super.onPageSelected(position);
 219                 }
 220             };
 221             mViewPager.addOnPageChangeListener(pageChangeListener);
 222         }
 223
 224         mCurrentPage = 0;
 225         if (savedInstanceState != null) {
 226             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 227             if (currentPage != -1) {
 228                 mCurrentPage = currentPage;
 229             }
 230             mAccountFilter = savedInstanceState.getString(STATE_ACC_FILTER, null);
 231         }
 232         else mAccountFilter = null;
 233
 234         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 235
 236         findViewById(R.id.btn_no_profiles_add)
 237                 .setOnClickListener(v -> startEditProfileActivity(null));
 238
 239         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 240
 241         findViewById(R.id.nav_new_profile_button)
 242                 .setOnClickListener(v -> startEditProfileActivity(null));
 243
 244         RecyclerView root = findViewById(R.id.nav_profile_list);
 245         if (root == null)
 246             throw new RuntimeException("Can't get hold on the transaction value view");
 247
 248         if (mProfileListAdapter == null) mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 249         root.setAdapter(mProfileListAdapter);
 250
 251         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 252             if (newValue) {
 253                 profileListHeadMore.setVisibility(View.GONE);
 254                 profileListHeadCancel.setVisibility(View.VISIBLE);
 255                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 256                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 257                     profileListHeadMore.startAnimation(
 258                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 259                     profileListHeadCancel.startAnimation(
 260                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 261                     profileListHeadAddProfile.startAnimation(
 262                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 263                 }
 264             }
 265             else {
 266                 profileListHeadCancel.setVisibility(View.GONE);
 267                 profileListHeadMore.setVisibility(View.VISIBLE);
 268                 profileListHeadAddProfile.setVisibility(View.GONE);
 269                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 270                     profileListHeadCancel.startAnimation(
 271                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 272                     profileListHeadMore.startAnimation(
 273                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 274                     profileListHeadAddProfile.startAnimation(
 275                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 276                 }
 277             }
 278
 279             mProfileListAdapter.notifyDataSetChanged();
 280         });
 281
 282         LinearLayoutManager llm = new LinearLayoutManager(this);
 283
 284         llm.setOrientation(RecyclerView.VERTICAL);
 285         root.setLayoutManager(llm);
 286
 287         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 288         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 289         profileListHeadMoreAndCancel
 290                 .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 291         if (drawerListener == null) {
 292             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 293                 @Override
 294                 public void onDrawerClosed(View drawerView) {
 295                     super.onDrawerClosed(drawerView);
 296                     mProfileListAdapter.setAnimationsEnabled(false);
 297                     mProfileListAdapter.editingProfiles.setValue(false);
 298                 }
 299                 @Override
 300                 public void onDrawerOpened(View drawerView) {
 301                     super.onDrawerOpened(drawerView);
 302                     mProfileListAdapter.setAnimationsEnabled(true);
 303                 }
 304             };
 305             drawer.addDrawerListener(drawerListener);
 306         }
 307         setupProfile();
 308     }
 309     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
 310         long now = new Date().getTime();
 311         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 312             if (lastUpdate == null) debug("db::", "WEB data never fetched. scheduling a fetch");
 313             else debug("db", String.format(Locale.ENGLISH,
 314                     "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 315                     lastUpdate.getTime() / 1000f, now / 1000f));
 316
 317             Data.scheduleTransactionListRetrieval(this);
 318         }
 319     }
 320     private void createShortcuts(List<MobileLedgerProfile> list) {
 321         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
 322
 323         List<ShortcutInfo> shortcuts = new ArrayList<>();
 324         int i = 0;
 325         for (MobileLedgerProfile p : list) {
 326             if (!p.isPostingPermitted()) continue;
 327
 328             ShortcutInfo si = new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid())
 329                     .setShortLabel(p.getName())
 330                     .setIcon(Icon.createWithResource(this, R.drawable.svg_thick_plus_white))
 331                     .setIntent(
 332                             new Intent(Intent.ACTION_VIEW, null, this, NewTransactionActivity.class)
 333                                     .putExtra("profile_uuid", p.getUuid())).setRank(i).build();
 334             shortcuts.add(si);
 335             i++;
 336         }
 337         ShortcutManager sm = getSystemService(ShortcutManager.class);
 338         sm.setDynamicShortcuts(shortcuts);
 339     }
 340     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 341         if (newList == null) {
 342             // profiles not yet loaded from DB
 343             findViewById(R.id.loading_layout).setVisibility(View.VISIBLE);
 344             findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 345             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 346             return;
 347         }
 348
 349         if (newList.isEmpty()) {
 350             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 351             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 352             findViewById(R.id.loading_layout).setVisibility(View.GONE);
 353             return;
 354         }
 355
 356         findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
 357         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 358         findViewById(R.id.loading_layout).setVisibility(View.GONE);
 359
 360         findViewById(R.id.nav_profile_list).setMinimumHeight(
 361                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 362
 363         debug("profiles", "profile list changed");
 364         mProfileListAdapter.notifyDataSetChanged();
 365
 366         createShortcuts(newList);
 367     }
 368     /**
 369      * called when the current profile has changed
 370      */
 371     private void onProfileChanged(MobileLedgerProfile profile) {
 372         boolean haveProfile = profile != null;
 373         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 374         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 375
 376         if (haveProfile) setTitle(profile.getName());
 377         else setTitle(R.string.app_name);
 378
 379         this.profile = profile;
 380
 381         mProfileListAdapter.notifyDataSetChanged();
 382
 383         int newProfileTheme = haveProfile ? profile.getThemeId() : -1;
 384         if (newProfileTheme != Colors.profileThemeId) {
 385             debug("profiles",
 386                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 387                             newProfileTheme));
 388             MainActivity.this.profileThemeChanged();
 389             Colors.profileThemeId = newProfileTheme;
 390             // profileThemeChanged would restart the activity, so no need to reload the
 391             // data sets below
 392             return;
 393         }
 394
 395         drawer.closeDrawers();
 396
 397         Data.transactions.clear();
 398         debug("transactions", "requesting list reload");
 399         TransactionListViewModel.scheduleTransactionListReload();
 400
 401         Data.accounts.clear();
 402         AccountSummaryViewModel.scheduleAccountListReload();
 403
 404         if (haveProfile) {
 405             if (profile.isPostingPermitted()) {
 406                 mToolbar.setSubtitle(null);
 407                 fab.show();
 408             }
 409             else {
 410                 mToolbar.setSubtitle(R.string.profile_subitlte_read_only);
 411                 fab.hide();
 412             }
 413         }
 414         else {
 415             mToolbar.setSubtitle(null);
 416             fab.hide();
 417         }
 418
 419         updateLastUpdateTextFromDB();
 420     }
 421     private void updateLastUpdateDisplay(Date newValue) {
 422         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 423         TextView v = findViewById(R.id.transactions_last_update);
 424         if (newValue == null) {
 425             l.setVisibility(View.INVISIBLE);
 426             debug("main", "no last update date :(");
 427         }
 428         else {
 429             final String text = DateFormat.getDateTimeInstance().format(newValue);
 430             v.setText(text);
 431             l.setVisibility(View.VISIBLE);
 432             debug("main", String.format("Date formatted: %s", text));
 433         }
 434
 435         scheduleDataRetrievalIfStale(newValue);
 436     }
 437     private void profileThemeChanged() {
 438         Bundle bundle = new Bundle();
 439         onSaveInstanceState(bundle);
 440
 441         storeThemeIdInPrefs(profile.getThemeId());
 442
 443         // restart activity to reflect theme change
 444         finish();
 445
 446         // un-hook all observed LiveData
 447         Data.profile.removeObservers(this);
 448         Data.profiles.removeObservers(this);
 449         Data.lastUpdateDate.removeObservers(this);
 450         Intent intent = new Intent(this, this.getClass());
 451         intent.putExtra(BUNDLE_SAVED_STATE, bundle);
 452         startActivity(intent);
 453     }
 454     private void storeThemeIdInPrefs(int themeId) {
 455         // store the new theme id in the preferences
 456         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 457         SharedPreferences.Editor e = prefs.edit();
 458         e.putInt(PREF_THEME_ID, themeId);
 459         e.apply();
 460     }
 461     public void startEditProfileActivity(MobileLedgerProfile profile) {
 462         Intent intent = new Intent(this, ProfileDetailActivity.class);
 463         Bundle args = new Bundle();
 464         if (profile != null) {
 465             int index = Data.getProfileIndex(profile);
 466             if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 467         }
 468         intent.putExtras(args);
 469         startActivity(intent, args);
 470     }
 471     private void setupProfile() {
 472         MLDB.getOption(MLDB.OPT_PROFILE_UUID, null, new GetOptCallback() {
 473             @Override
 474             protected void onResult(String profileUUID) {
 475                 MobileLedgerProfile startupProfile;
 476
 477                 startupProfile = Data.getProfile(profileUUID);
 478                 Data.setCurrentProfile(startupProfile);
 479             }
 480         });
 481     }
 482     public void fabNewTransactionClicked(View view) {
 483         Intent intent = new Intent(this, NewTransactionActivity.class);
 484         startActivity(intent);
 485         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
 486     }
 487     public void navSettingsClicked(View view) {
 488         Intent intent = new Intent(this, SettingsActivity.class);
 489         startActivity(intent);
 490         drawer.closeDrawers();
 491     }
 492     public void markDrawerItemCurrent(int id) {
 493         TextView item = drawer.findViewById(id);
 494         item.setBackgroundColor(Colors.tableRowDarkBG);
 495
 496         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 497         for (int i = 0; i < actions.getChildCount(); i++) {
 498             View view = actions.getChildAt(i);
 499             if (view.getId() != id) {
 500                 view.setBackgroundColor(Color.TRANSPARENT);
 501             }
 502         }
 503     }
 504     public void onAccountSummaryClicked(View view) {
 505         drawer.closeDrawers();
 506
 507         showAccountSummaryFragment();
 508     }
 509     private void showAccountSummaryFragment() {
 510         mViewPager.setCurrentItem(0, true);
 511         Data.accountFilter.setValue(null);
 512     }
 513     public void onLatestTransactionsClicked(View view) {
 514         drawer.closeDrawers();
 515
 516         showTransactionsFragment((String) null);
 517     }
 518     private void showTransactionsFragment(String accName) {
 519         Data.accountFilter.setValue(accName);
 520         mViewPager.setCurrentItem(1, true);
 521     }
 522     private void showTransactionsFragment(LedgerAccount account) {
 523         showTransactionsFragment((account == null) ? null : account.getName());
 524     }
 525     public void showAccountTransactions(LedgerAccount account) {
 526         mBackMeansToAccountList = true;
 527         showTransactionsFragment(account);
 528     }
 529     @Override
 530     public void onBackPressed() {
 531         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 532         if (drawer.isDrawerOpen(GravityCompat.START)) {
 533             drawer.closeDrawer(GravityCompat.START);
 534         }
 535         else {
 536             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 537                 Data.accountFilter.setValue(null);
 538                 showAccountSummaryFragment();
 539                 mBackMeansToAccountList = false;
 540             }
 541             else {
 542                 debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 543                         fragmentManager.getBackStackEntryCount()));
 544
 545                 super.onBackPressed();
 546             }
 547         }
 548     }
 549     public void updateLastUpdateTextFromDB() {
 550         if (profile == null) return;
 551
 552         long last_update = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 553
 554         debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", last_update));
 555         if (last_update == 0) {
 556             Data.lastUpdateDate.postValue(null);
 557         }
 558         else {
 559             Data.lastUpdateDate.postValue(new Date(last_update));
 560         }
 561     }
 562     public void onStopTransactionRefreshClick(View view) {
 563         debug("interactive", "Cancelling transactions refresh");
 564         Data.stopTransactionsRetrieval();
 565         bTransactionListCancelDownload.setEnabled(false);
 566     }
 567     public void onRetrieveDone(String error) {
 568         Data.transactionRetrievalDone();
 569         findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 570
 571         if (error == null) {
 572             updateLastUpdateTextFromDB();
 573
 574             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 575             TransactionListViewModel.scheduleTransactionListReload();
 576         }
 577         else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
 578     }
 579     public void onRetrieveStart() {
 580         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 581         bTransactionListCancelDownload.setEnabled(true);
 582         progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
 583         progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
 584         progressBar.setIndeterminate(true);
 585         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
 586         else progressBar.setProgress(0);
 587         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 588     }
 589     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 590         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 591         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 592             (progress.getTotal() == 0))
 593         {
 594             progressBar.setIndeterminate(true);
 595         }
 596         else {
 597             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 598                 progressBar.setMin(0);
 599             }
 600             progressBar.setMax(progress.getTotal());
 601             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 602                 progressBar.setProgress(progress.getProgress(), true);
 603             }
 604             else progressBar.setProgress(progress.getProgress());
 605             progressBar.setIndeterminate(false);
 606         }
 607     }
 608     public void fabShouldShow() {
 609         if ((profile != null) && profile.isPostingPermitted()) fab.show();
 610     }
 611     public void fabHide() {
 612         fab.hide();
 613     }
 614     public void onAccountSummaryRowViewClicked(View view) {
 615         ViewGroup row;
 616         if (view.getId() == R.id.account_expander) row = (ViewGroup) view.getParent().getParent();
 617         else row = (ViewGroup) view.getParent();
 618
 619         LedgerAccount acc = (LedgerAccount) row.getTag();
 620         switch (view.getId()) {
 621             case R.id.account_row_acc_name:
 622             case R.id.account_expander:
 623             case R.id.account_expander_container:
 624                 debug("accounts", "Account expander clicked");
 625                 if (!acc.hasSubAccounts()) return;
 626
 627                 boolean wasExpanded = acc.isExpanded();
 628
 629                 View arrow = row.findViewById(R.id.account_expander_container);
 630
 631                 arrow.clearAnimation();
 632                 ViewPropertyAnimator animator = arrow.animate();
 633
 634                 acc.toggleExpanded();
 635                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
 636                         new Object[]{acc.isExpanded(), acc.getName(), profile.getUuid()
 637                         });
 638
 639                 if (wasExpanded) {
 640                     debug("accounts", String.format("Collapsing account '%s'", acc.getName()));
 641                     arrow.setRotation(0);
 642                     animator.rotationBy(180);
 643
 644                     // removing all child accounts from the view
 645                     int start = -1, count = 0;
 646                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 647                         for (int i = 0; i < Data.accounts.size(); i++) {
 648                             if (acc.isParentOf(Data.accounts.get(i))) {
 649 //                                debug("accounts", String.format("Found a child '%s' at position %d",
 650 //                                        Data.accounts.get(i).getName(), i));
 651                                 if (start == -1) {
 652                                     start = i;
 653                                 }
 654                                 count++;
 655                             }
 656                             else {
 657                                 if (start != -1) {
 658 //                                    debug("accounts",
 659 //                                            String.format("Found a non-child '%s' at position %d",
 660 //                                                    Data.accounts.get(i).getName(), i));
 661                                     break;
 662                                 }
 663                             }
 664                         }
 665
 666                         if (start != -1) {
 667                             for (int j = 0; j < count; j++) {
 668 //                                debug("accounts", String.format("Removing item %d: %s", start + j,
 669 //                                        Data.accounts.get(start).getName()));
 670                                 Data.accounts.removeQuietly(start);
 671                             }
 672
 673                             mAccountSummaryFragment.modelAdapter
 674                                     .notifyItemRangeRemoved(start, count);
 675                         }
 676                     }
 677                 }
 678                 else {
 679                     debug("accounts", String.format("Expanding account '%s'", acc.getName()));
 680                     arrow.setRotation(180);
 681                     animator.rotationBy(-180);
 682                     List<LedgerAccount> children = profile.loadVisibleChildAccountsOf(acc);
 683                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 684                         int parentPos = Data.accounts.indexOf(acc);
 685                         if (parentPos != -1) {
 686                             // may have disappeared in a concurrent refresh operation
 687                             Data.accounts.addAllQuietly(parentPos + 1, children);
 688                             mAccountSummaryFragment.modelAdapter
 689                                     .notifyItemRangeInserted(parentPos + 1, children.size());
 690                         }
 691                     }
 692                 }
 693                 break;
 694             case R.id.account_row_acc_amounts:
 695                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
 696                     acc.toggleAmountsExpanded();
 697                     DbOpQueue
 698                             .add("update accounts set amounts_expanded=? where name=? and profile=?",
 699                                     new Object[]{acc.amountsExpanded(), acc.getName(),
 700                                                  profile.getUuid()
 701                                     });
 702                     Data.accounts.triggerItemChangedNotification(acc);
 703                 }
 704                 break;
 705         }
 706     }
 707
 708     public class SectionsPagerAdapter extends FragmentPagerAdapter {
 709
 710         SectionsPagerAdapter(FragmentManager fm) {
 711             super(fm);
 712         }
 713
 714         @NotNull
 715         @Override
 716         public Fragment getItem(int position) {
 717             debug("main", String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 718             switch (position) {
 719                 case 0:
 720 //                    debug("flow", "Creating account summary fragment");
 721                     return mAccountSummaryFragment = new AccountSummaryFragment();
 722                 case 1:
 723                     return new TransactionListFragment();
 724                 default:
 725                     throw new IllegalStateException(
 726                             String.format("Unexpected fragment index: " + "%d", position));
 727             }
 728         }
 729
 730         @Override
 731         public int getCount() {
 732             return 2;
 733         }
 734     }
 735 }