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