app/src/main/java/net/ktnx/mobileledger/ui/activity/MainActivity.java

   1 /*
   2  * Copyright © 2020 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
  40 import androidx.annotation.NonNull;
  41 import androidx.appcompat.app.ActionBarDrawerToggle;
  42 import androidx.appcompat.widget.Toolbar;
  43 import androidx.core.view.GravityCompat;
  44 import androidx.drawerlayout.widget.DrawerLayout;
  45 import androidx.fragment.app.Fragment;
  46 import androidx.fragment.app.FragmentManager;
  47 import androidx.fragment.app.FragmentPagerAdapter;
  48 import androidx.recyclerview.widget.LinearLayoutManager;
  49 import androidx.recyclerview.widget.RecyclerView;
  50 import androidx.viewpager.widget.ViewPager;
  51
  52 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  53 import com.google.android.material.snackbar.Snackbar;
  54
  55 import net.ktnx.mobileledger.R;
  56 import net.ktnx.mobileledger.async.DbOpQueue;
  57 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
  58 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  59 import net.ktnx.mobileledger.model.Data;
  60 import net.ktnx.mobileledger.model.LedgerAccount;
  61 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  62 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryAdapter;
  63 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  64 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryViewModel;
  65 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  66 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  67 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  68 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  69 import net.ktnx.mobileledger.utils.Colors;
  70 import net.ktnx.mobileledger.utils.GetOptCallback;
  71 import net.ktnx.mobileledger.utils.LockHolder;
  72 import net.ktnx.mobileledger.utils.Logger;
  73 import net.ktnx.mobileledger.utils.MLDB;
  74
  75 import org.jetbrains.annotations.NotNull;
  76
  77 import java.text.DateFormat;
  78 import java.util.ArrayList;
  79 import java.util.Date;
  80 import java.util.List;
  81 import java.util.Locale;
  82
  83 import static net.ktnx.mobileledger.utils.Logger.debug;
  84
  85 /*
  86  * TODO: reports
  87  *  */
  88
  89 public class MainActivity extends ProfileThemedActivity {
  90     public static final String STATE_CURRENT_PAGE = "current_page";
  91     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  92     public static final String STATE_ACC_FILTER = "account_filter";
  93     private static final String PREF_THEME_ID = "themeId";
  94     DrawerLayout drawer;
  95     private View profileListHeadMore, profileListHeadCancel, profileListHeadAddProfile;
  96     private View bTransactionListCancelDownload;
  97     private SectionsPagerAdapter mSectionsPagerAdapter;
  98     private ViewPager mViewPager;
  99     private FloatingActionButton fab;
 100     private ProfilesRecyclerViewAdapter mProfileListAdapter;
 101     private int mCurrentPage;
 102     private boolean mBackMeansToAccountList = false;
 103     private Toolbar mToolbar;
 104     private DrawerLayout.SimpleDrawerListener drawerListener;
 105     private ActionBarDrawerToggle barDrawerToggle;
 106     private ViewPager.SimpleOnPageChangeListener pageChangeListener;
 107     private MobileLedgerProfile profile;
 108     @Override
 109     protected void onStart() {
 110         super.onStart();
 111
 112         Logger.debug("MainActivity", "onStart()");
 113
 114         mViewPager.setCurrentItem(mCurrentPage, false);
 115     }
 116     @Override
 117     protected void onSaveInstanceState(@NotNull Bundle outState) {
 118         super.onSaveInstanceState(outState);
 119         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 120         if (Data.accountFilter.getValue() != null)
 121             outState.putString(STATE_ACC_FILTER, Data.accountFilter.getValue());
 122     }
 123     @Override
 124     protected void onDestroy() {
 125         mSectionsPagerAdapter = null;
 126         RecyclerView root = findViewById(R.id.nav_profile_list);
 127         if (root != null)
 128             root.setAdapter(null);
 129         if (drawer != null)
 130             drawer.removeDrawerListener(drawerListener);
 131         drawerListener = null;
 132         if (drawer != null)
 133             drawer.removeDrawerListener(barDrawerToggle);
 134         barDrawerToggle = null;
 135         if (mViewPager != null)
 136             mViewPager.removeOnPageChangeListener(pageChangeListener);
 137         pageChangeListener = null;
 138         super.onDestroy();
 139     }
 140     @Override
 141     protected void setupProfileColors() {
 142         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 143         int profileColor = prefs.getInt(PREF_THEME_ID, -2);
 144         if (profileColor == -2)
 145             profileColor = Data.retrieveCurrentThemeIdFromDb();
 146         Colors.setupTheme(this, profileColor);
 147         Colors.profileThemeId = profileColor;
 148         storeThemeIdInPrefs(profileColor);
 149     }
 150     @Override
 151     protected void onResume() {
 152         super.onResume();
 153         fabShouldShow();
 154     }
 155     @Override
 156     protected void onCreate(Bundle savedInstanceState) {
 157         debug("MainActivity", "onCreate()/entry");
 158         super.onCreate(savedInstanceState);
 159         debug("MainActivity", "onCreate()/after super");
 160         setContentView(R.layout.activity_main);
 161
 162         fab = findViewById(R.id.btn_add_transaction);
 163         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 164         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 165         LinearLayout profileListHeadMoreAndCancel =
 166                 findViewById(R.id.nav_profile_list_head_buttons);
 167         profileListHeadAddProfile = findViewById(R.id.nav_new_profile_button);
 168         drawer = findViewById(R.id.drawer_layout);
 169         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 170         mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
 171         mViewPager = findViewById(R.id.root_frame);
 172
 173         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 174         if (extra != null && savedInstanceState == null)
 175             savedInstanceState = extra;
 176
 177
 178         mToolbar = findViewById(R.id.toolbar);
 179         setSupportActionBar(mToolbar);
 180
 181         Data.profile.observe(this, this::onProfileChanged);
 182
 183         Data.profiles.observe(this, this::onProfileListChanged);
 184
 185         if (barDrawerToggle == null) {
 186             barDrawerToggle = new ActionBarDrawerToggle(this, drawer, mToolbar,
 187                     R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 188             drawer.addDrawerListener(barDrawerToggle);
 189         }
 190         barDrawerToggle.syncState();
 191
 192         try {
 193             PackageInfo pi = getApplicationContext().getPackageManager()
 194                                                     .getPackageInfo(getPackageName(), 0);
 195             ((TextView) findViewById(R.id.nav_upper).findViewById(
 196                     R.id.drawer_version_text)).setText(pi.versionName);
 197             ((TextView) findViewById(R.id.no_profiles_layout).findViewById(
 198                     R.id.drawer_version_text)).setText(pi.versionName);
 199         }
 200         catch (Exception e) {
 201             e.printStackTrace();
 202         }
 203
 204         markDrawerItemCurrent(R.id.nav_account_summary);
 205
 206         mViewPager.setAdapter(mSectionsPagerAdapter);
 207
 208         if (pageChangeListener == null) {
 209             pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 210                 @Override
 211                 public void onPageSelected(int position) {
 212                     mCurrentPage = position;
 213                     switch (position) {
 214                         case 0:
 215                             markDrawerItemCurrent(R.id.nav_account_summary);
 216                             break;
 217                         case 1:
 218                             markDrawerItemCurrent(R.id.nav_latest_transactions);
 219                             break;
 220                         default:
 221                             Log.e("MainActivity",
 222                                     String.format("Unexpected page index %d", position));
 223                     }
 224
 225                     super.onPageSelected(position);
 226                 }
 227             };
 228             mViewPager.addOnPageChangeListener(pageChangeListener);
 229         }
 230
 231         mCurrentPage = 0;
 232         if (savedInstanceState != null) {
 233             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 234             if (currentPage != -1) {
 235                 mCurrentPage = currentPage;
 236             }
 237             Data.accountFilter.setValue(savedInstanceState.getString(STATE_ACC_FILTER, null));
 238         }
 239
 240         Data.lastUpdateDate.observe(this, this::updateLastUpdateDisplay);
 241
 242         findViewById(R.id.btn_no_profiles_add).setOnClickListener(
 243                 v -> startEditProfileActivity(null));
 244
 245         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 246
 247         findViewById(R.id.nav_new_profile_button).setOnClickListener(
 248                 v -> startEditProfileActivity(null));
 249
 250         RecyclerView root = findViewById(R.id.nav_profile_list);
 251         if (root == null)
 252             throw new RuntimeException("Can't get hold on the transaction value view");
 253
 254         if (mProfileListAdapter == null)
 255             mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 256         root.setAdapter(mProfileListAdapter);
 257
 258         mProfileListAdapter.editingProfiles.observe(this, newValue -> {
 259             if (newValue) {
 260                 profileListHeadMore.setVisibility(View.GONE);
 261                 profileListHeadCancel.setVisibility(View.VISIBLE);
 262                 profileListHeadAddProfile.setVisibility(View.VISIBLE);
 263                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 264                     profileListHeadMore.startAnimation(
 265                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 266                     profileListHeadCancel.startAnimation(
 267                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 268                     profileListHeadAddProfile.startAnimation(
 269                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 270                 }
 271             }
 272             else {
 273                 profileListHeadCancel.setVisibility(View.GONE);
 274                 profileListHeadMore.setVisibility(View.VISIBLE);
 275                 profileListHeadAddProfile.setVisibility(View.GONE);
 276                 if (drawer.isDrawerOpen(GravityCompat.START)) {
 277                     profileListHeadCancel.startAnimation(
 278                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 279                     profileListHeadMore.startAnimation(
 280                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in));
 281                     profileListHeadAddProfile.startAnimation(
 282                             AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_out));
 283                 }
 284             }
 285
 286             mProfileListAdapter.notifyDataSetChanged();
 287         });
 288
 289         LinearLayoutManager llm = new LinearLayoutManager(this);
 290
 291         llm.setOrientation(RecyclerView.VERTICAL);
 292         root.setLayoutManager(llm);
 293
 294         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 295         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 296         profileListHeadMoreAndCancel.setOnClickListener(
 297                 (v) -> mProfileListAdapter.flipEditingProfiles());
 298         if (drawerListener == null) {
 299             drawerListener = new DrawerLayout.SimpleDrawerListener() {
 300                 @Override
 301                 public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
 302                     if (slideOffset > 0.2)
 303                         fabHide();
 304                 }
 305                 @Override
 306                 public void onDrawerClosed(View drawerView) {
 307                     super.onDrawerClosed(drawerView);
 308                     mProfileListAdapter.setAnimationsEnabled(false);
 309                     mProfileListAdapter.editingProfiles.setValue(false);
 310                     Data.drawerOpen.setValue(false);
 311                     fabShouldShow();
 312                 }
 313                 @Override
 314                 public void onDrawerOpened(View drawerView) {
 315                     super.onDrawerOpened(drawerView);
 316                     mProfileListAdapter.setAnimationsEnabled(true);
 317                     Data.drawerOpen.setValue(true);
 318                     fabHide();
 319                 }
 320             };
 321             drawer.addDrawerListener(drawerListener);
 322         }
 323
 324         Data.drawerOpen.observe(this, open -> {
 325             if (open)
 326                 drawer.open();
 327             else
 328                 drawer.close();
 329         });
 330     }
 331     private void scheduleDataRetrievalIfStale(Date lastUpdate) {
 332         long now = new Date().getTime();
 333         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 334             if (lastUpdate == null)
 335                 debug("db::", "WEB data never fetched. scheduling a fetch");
 336             else
 337                 debug("db", String.format(Locale.ENGLISH,
 338                         "WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 339                         lastUpdate.getTime() / 1000f, now / 1000f));
 340
 341             Data.scheduleTransactionListRetrieval(this);
 342         }
 343     }
 344     private void createShortcuts(List<MobileLedgerProfile> list) {
 345         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1)
 346             return;
 347
 348         ShortcutManager sm = getSystemService(ShortcutManager.class);
 349         List<ShortcutInfo> shortcuts = new ArrayList<>();
 350         int i = 0;
 351         for (MobileLedgerProfile p : list) {
 352             if (shortcuts.size() >= sm.getMaxShortcutCountPerActivity())
 353                 break;
 354
 355             if (!p.isPostingPermitted())
 356                 continue;
 357
 358             final ShortcutInfo.Builder builder =
 359                     new ShortcutInfo.Builder(this, "new_transaction_" + p.getUuid());
 360             ShortcutInfo si = builder.setShortLabel(p.getName())
 361                                      .setIcon(Icon.createWithResource(this,
 362                                              R.drawable.thick_plus_icon))
 363                                      .setIntent(new Intent(Intent.ACTION_VIEW, null, this,
 364                                              NewTransactionActivity.class).putExtra("profile_uuid",
 365                                              p.getUuid()))
 366                                      .setRank(i)
 367                                      .build();
 368             shortcuts.add(si);
 369             i++;
 370         }
 371         sm.setDynamicShortcuts(shortcuts);
 372     }
 373     private void onProfileListChanged(List<MobileLedgerProfile> newList) {
 374         if ((newList == null) || newList.isEmpty()) {
 375             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 376             findViewById(R.id.main_app_layout).setVisibility(View.GONE);
 377             return;
 378         }
 379
 380         findViewById(R.id.main_app_layout).setVisibility(View.VISIBLE);
 381         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 382
 383         findViewById(R.id.nav_profile_list).setMinimumHeight(
 384                 (int) (getResources().getDimension(R.dimen.thumb_row_height) * newList.size()));
 385
 386         debug("profiles", "profile list changed");
 387         mProfileListAdapter.notifyDataSetChanged();
 388
 389         createShortcuts(newList);
 390     }
 391     /**
 392      * called when the current profile has changed
 393      */
 394     private void onProfileChanged(MobileLedgerProfile profile) {
 395         boolean haveProfile = profile != null;
 396
 397         if (haveProfile)
 398             setTitle(profile.getName());
 399         else
 400             setTitle(R.string.app_name);
 401
 402         this.profile = profile;
 403
 404         int newProfileTheme = haveProfile ? profile.getThemeHue() : -1;
 405         if (newProfileTheme != Colors.profileThemeId) {
 406             debug("profiles",
 407                     String.format(Locale.ENGLISH, "profile theme %d → %d", Colors.profileThemeId,
 408                             newProfileTheme));
 409             Colors.profileThemeId = newProfileTheme;
 410             profileThemeChanged();
 411             // profileThemeChanged would restart the activity, so no need to reload the
 412             // data sets below
 413             return;
 414         }
 415
 416         findViewById(R.id.no_profiles_layout).setVisibility(haveProfile ? View.GONE : View.VISIBLE);
 417         findViewById(R.id.pager_layout).setVisibility(haveProfile ? View.VISIBLE : View.VISIBLE);
 418
 419         mProfileListAdapter.notifyDataSetChanged();
 420
 421         Data.transactions.clear();
 422         debug("transactions", "requesting list reload");
 423         TransactionListViewModel.scheduleTransactionListReload();
 424
 425         Data.accounts.clear();
 426         AccountSummaryViewModel.scheduleAccountListReload();
 427
 428         if (haveProfile) {
 429             if (profile.isPostingPermitted()) {
 430                 mToolbar.setSubtitle(null);
 431                 fab.show();
 432             }
 433             else {
 434                 mToolbar.setSubtitle(R.string.profile_subtitle_read_only);
 435                 fab.hide();
 436             }
 437         }
 438         else {
 439             mToolbar.setSubtitle(null);
 440             fab.hide();
 441         }
 442
 443         updateLastUpdateTextFromDB();
 444     }
 445     private void updateLastUpdateDisplay(Date newValue) {
 446         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 447         TextView v = findViewById(R.id.transactions_last_update);
 448         if (newValue == null) {
 449             l.setVisibility(View.INVISIBLE);
 450             debug("main", "no last update date :(");
 451         }
 452         else {
 453             final String text = DateFormat.getDateTimeInstance()
 454                                           .format(newValue);
 455             v.setText(text);
 456             l.setVisibility(View.VISIBLE);
 457             debug("main", String.format("Date formatted: %s", text));
 458         }
 459
 460         scheduleDataRetrievalIfStale(newValue);
 461     }
 462     private void profileThemeChanged() {
 463         storeThemeIdInPrefs(profile.getThemeHue());
 464
 465         // un-hook all observed LiveData
 466         Data.profile.removeObservers(this);
 467         Data.profiles.removeObservers(this);
 468         Data.lastUpdateDate.removeObservers(this);
 469
 470         recreate();
 471     }
 472     private void storeThemeIdInPrefs(int themeId) {
 473         // store the new theme id in the preferences
 474         SharedPreferences prefs = getPreferences(MODE_PRIVATE);
 475         SharedPreferences.Editor e = prefs.edit();
 476         e.putInt(PREF_THEME_ID, themeId);
 477         e.apply();
 478     }
 479     public void startEditProfileActivity(MobileLedgerProfile profile) {
 480         Intent intent = new Intent(this, ProfileDetailActivity.class);
 481         Bundle args = new Bundle();
 482         if (profile != null) {
 483             int index = Data.getProfileIndex(profile);
 484             if (index != -1)
 485                 intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 486         }
 487         intent.putExtras(args);
 488         startActivity(intent, args);
 489     }
 490     private void setupProfile() {
 491         MLDB.getOption(MLDB.OPT_PROFILE_UUID, null, new GetOptCallback() {
 492             @Override
 493             protected void onResult(String profileUUID) {
 494                 MobileLedgerProfile startupProfile;
 495
 496                 startupProfile = Data.getProfile(profileUUID);
 497                 Data.setCurrentProfile(startupProfile);
 498             }
 499         });
 500     }
 501     public void fabNewTransactionClicked(View view) {
 502         Intent intent = new Intent(this, NewTransactionActivity.class);
 503         startActivity(intent);
 504         overridePendingTransition(R.anim.slide_in_up, R.anim.dummy);
 505     }
 506     public void markDrawerItemCurrent(int id) {
 507         TextView item = drawer.findViewById(id);
 508         item.setBackgroundColor(Colors.tableRowDarkBG);
 509
 510         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 511         for (int i = 0; i < actions.getChildCount(); i++) {
 512             View view = actions.getChildAt(i);
 513             if (view.getId() != id) {
 514                 view.setBackgroundColor(Color.TRANSPARENT);
 515             }
 516         }
 517     }
 518     public void onAccountSummaryClicked(View view) {
 519         drawer.closeDrawers();
 520
 521         showAccountSummaryFragment();
 522     }
 523     private void showAccountSummaryFragment() {
 524         mViewPager.setCurrentItem(0, true);
 525         Data.accountFilter.setValue(null);
 526     }
 527     public void onLatestTransactionsClicked(View view) {
 528         drawer.closeDrawers();
 529
 530         showTransactionsFragment((String) null);
 531     }
 532     private void showTransactionsFragment(String accName) {
 533         Data.accountFilter.setValue(accName);
 534         mViewPager.setCurrentItem(1, true);
 535     }
 536     private void showTransactionsFragment(LedgerAccount account) {
 537         showTransactionsFragment((account == null) ? null : account.getName());
 538     }
 539     public void showAccountTransactions(LedgerAccount account) {
 540         mBackMeansToAccountList = true;
 541         showTransactionsFragment(account);
 542     }
 543     @Override
 544     public void onBackPressed() {
 545         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 546         if (drawer.isDrawerOpen(GravityCompat.START)) {
 547             drawer.closeDrawer(GravityCompat.START);
 548         }
 549         else {
 550             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 551                 Data.accountFilter.setValue(null);
 552                 showAccountSummaryFragment();
 553                 mBackMeansToAccountList = false;
 554             }
 555             else {
 556                 debug("fragments", String.format(Locale.ENGLISH, "manager stack: %d",
 557                         getSupportFragmentManager().getBackStackEntryCount()));
 558
 559                 super.onBackPressed();
 560             }
 561         }
 562     }
 563     public void updateLastUpdateTextFromDB() {
 564         if (profile == null)
 565             return;
 566
 567         long last_update = profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L);
 568
 569         debug("transactions", String.format(Locale.ENGLISH, "Last update = %d", last_update));
 570         if (last_update == 0) {
 571             Data.lastUpdateDate.postValue(null);
 572         }
 573         else {
 574             Data.lastUpdateDate.postValue(new Date(last_update));
 575         }
 576     }
 577     public void onStopTransactionRefreshClick(View view) {
 578         debug("interactive", "Cancelling transactions refresh");
 579         Data.stopTransactionsRetrieval();
 580         bTransactionListCancelDownload.setEnabled(false);
 581     }
 582     public void onRetrieveDone(String error) {
 583         Data.transactionRetrievalDone();
 584         findViewById(R.id.transaction_progress_layout).setVisibility(View.GONE);
 585
 586         if (error == null) {
 587             updateLastUpdateTextFromDB();
 588
 589             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 590             TransactionListViewModel.scheduleTransactionListReload();
 591         }
 592         else
 593             Snackbar.make(mViewPager, error, Snackbar.LENGTH_LONG)
 594                     .show();
 595     }
 596     public void onRetrieveStart() {
 597         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 598         bTransactionListCancelDownload.setEnabled(true);
 599         ColorStateList csl = Colors.getColorStateList();
 600         progressBar.setIndeterminateTintList(csl);
 601         progressBar.setProgressTintList(csl);
 602         progressBar.setIndeterminate(true);
 603         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
 604             progressBar.setProgress(0, false);
 605         else
 606             progressBar.setProgress(0);
 607         findViewById(R.id.transaction_progress_layout).setVisibility(View.VISIBLE);
 608     }
 609     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 610         ProgressBar progressBar = findViewById(R.id.transaction_list_progress_bar);
 611         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 612             (progress.getTotal() == 0))
 613         {
 614             progressBar.setIndeterminate(true);
 615         }
 616         else {
 617             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 618                 progressBar.setMin(0);
 619             }
 620             progressBar.setMax(progress.getTotal());
 621             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 622                 progressBar.setProgress(progress.getProgress(), true);
 623             }
 624             else
 625                 progressBar.setProgress(progress.getProgress());
 626             progressBar.setIndeterminate(false);
 627         }
 628     }
 629     public void fabShouldShow() {
 630         if ((profile != null) && profile.isPostingPermitted() && !drawer.isOpen())
 631             fab.show();
 632         else
 633             fabHide();
 634     }
 635     public void fabHide() {
 636         fab.hide();
 637     }
 638     public void onAccountSummaryRowViewClicked(View view) {
 639         ViewGroup row;
 640         switch (view.getId()) {
 641             case R.id.account_expander:
 642                 row = (ViewGroup) view.getParent()
 643                                       .getParent()
 644                                       .getParent();
 645                 break;
 646             case R.id.account_expander_container:
 647             case R.id.account_row_acc_name:
 648                 row = (ViewGroup) view.getParent()
 649                                       .getParent();
 650                 break;
 651             default:
 652                 row = (ViewGroup) view.getParent();
 653                 break;
 654         }
 655
 656         LedgerAccount acc = (LedgerAccount) row.getTag();
 657         switch (view.getId()) {
 658             case R.id.account_row_acc_name:
 659             case R.id.account_expander:
 660             case R.id.account_expander_container:
 661                 debug("accounts", "Account expander clicked");
 662                 if (!acc.hasSubAccounts())
 663                     return;
 664
 665                 boolean wasExpanded = acc.isExpanded();
 666
 667                 View arrow = row.findViewById(R.id.account_expander_container);
 668
 669                 arrow.clearAnimation();
 670                 ViewPropertyAnimator animator = arrow.animate();
 671
 672                 acc.toggleExpanded();
 673                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
 674                         new Object[]{acc.isExpanded(), acc.getName(), profile.getUuid()
 675                         });
 676
 677                 if (wasExpanded) {
 678                     debug("accounts", String.format("Collapsing account '%s'", acc.getName()));
 679                     arrow.setRotation(0);
 680                     animator.rotationBy(180);
 681
 682                     // removing all child accounts from the view
 683                     int start = -1, count = 0;
 684                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 685                         for (int i = 0; i < Data.accounts.size(); i++) {
 686                             if (acc.isParentOf(Data.accounts.get(i))) {
 687 //                                debug("accounts", String.format("Found a child '%s' at position
 688 //                                %d",
 689 //                                        Data.accounts.get(i).getName(), i));
 690                                 if (start == -1) {
 691                                     start = i;
 692                                 }
 693                                 count++;
 694                             }
 695                             else {
 696                                 if (start != -1) {
 697 //                                    debug("accounts",
 698 //                                            String.format("Found a non-child '%s' at position %d",
 699 //                                                    Data.accounts.get(i).getName(), i));
 700                                     break;
 701                                 }
 702                             }
 703                         }
 704
 705                         if (start != -1) {
 706                             for (int j = 0; j < count; j++) {
 707 //                                debug("accounts", String.format("Removing item %d: %s", start + j,
 708 //                                        Data.accounts.get(start).getName()));
 709                                 Data.accounts.removeQuietly(start);
 710                             }
 711
 712                             mAccountSummaryFragment.modelAdapter.notifyItemRangeRemoved(start,
 713                                     count);
 714                         }
 715                     }
 716                 }
 717                 else {
 718                     debug("accounts", String.format("Expanding account '%s'", acc.getName()));
 719                     arrow.setRotation(180);
 720                     animator.rotationBy(-180);
 721                     List<LedgerAccount> children = profile.loadVisibleChildAccountsOf(acc);
 722                     try (LockHolder ignored = Data.accounts.lockForWriting()) {
 723                         int parentPos = Data.accounts.indexOf(acc);
 724                         if (parentPos != -1) {
 725                             // may have disappeared in a concurrent refresh operation
 726                             Data.accounts.addAllQuietly(parentPos + 1, children);
 727                             mAccountSummaryFragment.modelAdapter.notifyItemRangeInserted(
 728                                     parentPos + 1, children.size());
 729                         }
 730                     }
 731                 }
 732                 break;
 733             case R.id.account_row_acc_amounts:
 734                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
 735                     acc.toggleAmountsExpanded();
 736                     DbOpQueue.add(
 737                             "update accounts set amounts_expanded=? where name=? and profile=?",
 738                             new Object[]{acc.amountsExpanded(), acc.getName(), profile.getUuid()
 739                             });
 740                     Data.accounts.triggerItemChangedNotification(acc);
 741                 }
 742                 break;
 743         }
 744     }
 745
 746     public class SectionsPagerAdapter extends FragmentPagerAdapter {
 747
 748         SectionsPagerAdapter(FragmentManager fm) {
 749             super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
 750         }
 751
 752         @NotNull
 753         @Override
 754         public Fragment getItem(int position) {
 755             debug("main", String.format(Locale.ENGLISH, "Switching to fragment %d", position));
 756             switch (position) {
 757                 case 0:
 758 //                    debug("flow", "Creating account summary fragment");
 759                     return new AccountSummaryFragment();
 760                 case 1:
 761                     return new TransactionListFragment();
 762                 default:
 763                     throw new IllegalStateException(
 764                             String.format("Unexpected fragment index: " + "%d", position));
 765             }
 766         }
 767
 768         @Override
 769         public int getCount() {
 770             return 2;
 771         }
 772     }
 773 }