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

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