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