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.res.ColorStateList;
  23 import android.graphics.Color;
  24 import android.os.AsyncTask;
  25 import android.os.Build;
  26 import android.os.Bundle;
  27 import android.util.Log;
  28 import android.view.View;
  29 import android.view.ViewGroup;
  30 import android.view.ViewPropertyAnimator;
  31 import android.view.animation.Animation;
  32 import android.view.animation.AnimationUtils;
  33 import android.widget.LinearLayout;
  34 import android.widget.ProgressBar;
  35 import android.widget.TextView;
  36 import android.widget.Toast;
  37
  38 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  39
  40 import net.ktnx.mobileledger.R;
  41 import net.ktnx.mobileledger.async.DbOpQueue;
  42 import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
  43 import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
  44 import net.ktnx.mobileledger.model.Data;
  45 import net.ktnx.mobileledger.model.LedgerAccount;
  46 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  47 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryAdapter;
  48 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
  49 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryViewModel;
  50 import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
  51 import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
  52 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
  53 import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
  54 import net.ktnx.mobileledger.utils.Colors;
  55 import net.ktnx.mobileledger.utils.LockHolder;
  56 import net.ktnx.mobileledger.utils.MLDB;
  57
  58 import java.lang.ref.WeakReference;
  59 import java.text.DateFormat;
  60 import java.util.Date;
  61 import java.util.List;
  62 import java.util.Observer;
  63
  64 import androidx.appcompat.app.ActionBarDrawerToggle;
  65 import androidx.appcompat.widget.Toolbar;
  66 import androidx.core.view.GravityCompat;
  67 import androidx.drawerlayout.widget.DrawerLayout;
  68 import androidx.fragment.app.Fragment;
  69 import androidx.fragment.app.FragmentManager;
  70 import androidx.fragment.app.FragmentPagerAdapter;
  71 import androidx.recyclerview.widget.LinearLayoutManager;
  72 import androidx.recyclerview.widget.RecyclerView;
  73 import androidx.viewpager.widget.ViewPager;
  74
  75 public class MainActivity extends ProfileThemedActivity {
  76     public static final String STATE_CURRENT_PAGE = "current_page";
  77     public static final String BUNDLE_SAVED_STATE = "bundle_savedState";
  78     public static final String STATE_ACC_FILTER = "account_filter";
  79     public AccountSummaryFragment mAccountSummaryFragment;
  80     DrawerLayout drawer;
  81     private LinearLayout profileListContainer;
  82     private View profileListHeadArrow, profileListHeadMore, profileListHeadCancel;
  83     private LinearLayout profileListHeadMoreAndCancel;
  84     private FragmentManager fragmentManager;
  85     private TextView tvLastUpdate;
  86     private RetrieveTransactionsTask retrieveTransactionsTask;
  87     private View bTransactionListCancelDownload;
  88     private ProgressBar progressBar;
  89     private LinearLayout progressLayout;
  90     private SectionsPagerAdapter mSectionsPagerAdapter;
  91     private ViewPager mViewPager;
  92     private FloatingActionButton fab;
  93     private boolean profileModificationEnabled = false;
  94     private boolean profileListExpanded = false;
  95     private ProfilesRecyclerViewAdapter mProfileListAdapter;
  96     private int mCurrentPage;
  97     private String mAccountFilter;
  98     private boolean mBackMeansToAccountList = false;
  99     private Observer profileObserver;
 100     private Observer profilesObserver;
 101     private Observer lastUpdateDateObserver;
 102     private Toolbar mToolbar;
 103     @Override
 104     protected void onStart() {
 105         super.onStart();
 106
 107         Log.d("flow", "MainActivity.onStart()");
 108         mViewPager.setCurrentItem(mCurrentPage, false);
 109         if (mAccountFilter != null) showTransactionsFragment(mAccountFilter);
 110         else Data.accountFilter.set(null);
 111
 112     }
 113     @Override
 114     protected void onSaveInstanceState(Bundle outState) {
 115         super.onSaveInstanceState(outState);
 116         outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
 117         if (Data.accountFilter.get() != null)
 118             outState.putString(STATE_ACC_FILTER, Data.accountFilter.get());
 119     }
 120     @Override
 121     protected void onDestroy() {
 122         mSectionsPagerAdapter = null;
 123         Data.profile.deleteObserver(profileObserver);
 124         profileObserver = null;
 125         Data.profiles.deleteObserver(profilesObserver);
 126         profilesObserver = null;
 127         Data.lastUpdateDate.deleteObserver(lastUpdateDateObserver);
 128         RecyclerView root = findViewById(R.id.nav_profile_list);
 129         if (root != null) root.setAdapter(null);
 130         super.onDestroy();
 131     }
 132     @Override
 133     protected void onCreate(Bundle savedInstanceState) {
 134         super.onCreate(savedInstanceState);
 135         Log.d("flow", "MainActivity.onCreate()");
 136         int profileColor = Data.retrieveCurrentThemeIdFromDb();
 137         Colors.setupTheme(this, profileColor);
 138         Colors.profileThemeId = profileColor;
 139         setContentView(R.layout.activity_main);
 140
 141         fab = findViewById(R.id.btn_add_transaction);
 142         profileListContainer = findViewById(R.id.nav_profile_list_container);
 143         profileListHeadArrow = findViewById(R.id.nav_profiles_arrow);
 144         profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
 145         profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
 146         profileListHeadMoreAndCancel = findViewById(R.id.nav_profile_list_head_buttons);
 147         drawer = findViewById(R.id.drawer_layout);
 148         tvLastUpdate = findViewById(R.id.transactions_last_update);
 149         bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
 150         progressBar = findViewById(R.id.transaction_list_progress_bar);
 151         progressLayout = findViewById(R.id.transaction_progress_layout);
 152         fragmentManager = getSupportFragmentManager();
 153         mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
 154         mViewPager = findViewById(R.id.root_frame);
 155
 156         Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
 157         if (extra != null && savedInstanceState == null) savedInstanceState = extra;
 158
 159
 160         mToolbar = findViewById(R.id.toolbar);
 161         setSupportActionBar(mToolbar);
 162
 163         if (profileObserver == null) {
 164             profileObserver = (o, arg) -> onProfileChanged(arg);
 165             Data.profile.addObserver(profileObserver);
 166         }
 167
 168         if (profilesObserver == null) {
 169             profilesObserver = (o, arg) -> onProfileListChanged(arg);
 170             Data.profiles.addObserver(profilesObserver);
 171         }
 172
 173         ActionBarDrawerToggle toggle =
 174                 new ActionBarDrawerToggle(this, drawer, mToolbar, R.string.navigation_drawer_open,
 175                         R.string.navigation_drawer_close);
 176         drawer.addDrawerListener(toggle);
 177         toggle.syncState();
 178
 179         TextView ver = drawer.findViewById(R.id.drawer_version_text);
 180
 181         try {
 182             PackageInfo pi =
 183                     getApplicationContext().getPackageManager().getPackageInfo(getPackageName(), 0);
 184             ver.setText(pi.versionName);
 185         }
 186         catch (Exception e) {
 187             e.printStackTrace();
 188         }
 189
 190         if (progressBar == null)
 191             throw new RuntimeException("Can't get hold on the transaction value progress bar");
 192         if (progressLayout == null) throw new RuntimeException(
 193                 "Can't get hold on the transaction value progress bar layout");
 194
 195         markDrawerItemCurrent(R.id.nav_account_summary);
 196
 197         mViewPager.setAdapter(mSectionsPagerAdapter);
 198         mViewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
 199             @Override
 200             public void onPageSelected(int position) {
 201                 switch (position) {
 202                     case 0:
 203                         markDrawerItemCurrent(R.id.nav_account_summary);
 204                         break;
 205                     case 1:
 206                         markDrawerItemCurrent(R.id.nav_latest_transactions);
 207                         break;
 208                     default:
 209                         Log.e("MainActivity", String.format("Unexpected page index %d", position));
 210                 }
 211
 212                 super.onPageSelected(position);
 213             }
 214         });
 215
 216         mCurrentPage = 0;
 217         if (savedInstanceState != null) {
 218             int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
 219             if (currentPage != -1) {
 220                 mCurrentPage = currentPage;
 221             }
 222             mAccountFilter = savedInstanceState.getString(STATE_ACC_FILTER, null);
 223         }
 224         else mAccountFilter = null;
 225
 226         lastUpdateDateObserver = (o, arg) -> {
 227             Log.d("main", "lastUpdateDate changed");
 228             runOnUiThread(this::updateLastUpdateDisplay);
 229         };
 230         Data.lastUpdateDate.addObserver(lastUpdateDateObserver);
 231
 232         updateLastUpdateDisplay();
 233
 234         findViewById(R.id.btn_no_profiles_add)
 235                 .setOnClickListener(v -> startEditProfileActivity(null));
 236
 237         findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
 238
 239         findViewById(R.id.nav_new_profile_button)
 240                 .setOnClickListener(v -> startEditProfileActivity(null));
 241
 242         RecyclerView root = findViewById(R.id.nav_profile_list);
 243         if (root == null)
 244             throw new RuntimeException("Can't get hold on the transaction value view");
 245
 246         if (mProfileListAdapter == null) mProfileListAdapter = new ProfilesRecyclerViewAdapter();
 247         root.setAdapter(mProfileListAdapter);
 248
 249         mProfileListAdapter.addEditingProfilesObserver((o, arg) -> {
 250             if (mProfileListAdapter.isEditingProfiles()) {
 251                 profileListHeadArrow.clearAnimation();
 252                 profileListHeadArrow.setVisibility(View.GONE);
 253                 profileListHeadMore.setVisibility(View.GONE);
 254                 profileListHeadCancel.setVisibility(View.VISIBLE);
 255             }
 256             else {
 257                 profileListHeadArrow.setRotation(180f);
 258                 profileListHeadArrow.setVisibility(View.VISIBLE);
 259                 profileListHeadCancel.setVisibility(View.GONE);
 260                 profileListHeadMore.setVisibility(View.GONE);
 261                 profileListHeadMore.setVisibility(profileListExpanded ? View.VISIBLE : View.GONE);
 262             }
 263         });
 264
 265         LinearLayoutManager llm = new LinearLayoutManager(this);
 266
 267         llm.setOrientation(RecyclerView.VERTICAL);
 268         root.setLayoutManager(llm);
 269
 270         profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 271         profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 272         profileListHeadMoreAndCancel
 273                 .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
 274
 275         drawer.addDrawerListener(new DrawerLayout.SimpleDrawerListener() {
 276             @Override
 277             public void onDrawerClosed(View drawerView) {
 278                 super.onDrawerClosed(drawerView);
 279                 collapseProfileList();
 280             }
 281         });
 282
 283         setupProfile();
 284
 285         updateLastUpdateTextFromDB();
 286         Date lastUpdate = Data.lastUpdateDate.get();
 287
 288         long now = new Date().getTime();
 289         if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
 290             if (lastUpdate == null) Log.d("db::", "WEB data never fetched. scheduling a fetch");
 291             else Log.d("db",
 292                     String.format("WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
 293                             lastUpdate.getTime() / 1000f, now / 1000f));
 294
 295             scheduleTransactionListRetrieval();
 296         }
 297     }
 298     private void onProfileListChanged(Object arg) {
 299         findViewById(R.id.nav_profile_list).setMinimumHeight(
 300                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
 301                        Data.profiles.size()));
 302
 303         Log.d("profiles", "profile list changed");
 304         if (arg == null) mProfileListAdapter.notifyDataSetChanged();
 305         else mProfileListAdapter.notifyItemChanged((int) arg);
 306     }
 307     private void onProfileChanged(Object arg) {
 308         MobileLedgerProfile profile = Data.profile.get();
 309         MainActivity.this.runOnUiThread(() -> {
 310
 311             Data.transactions.clear();
 312             Log.d("transactions", "requesting list reload");
 313             TransactionListViewModel.scheduleTransactionListReload();
 314
 315             Data.accounts.clear();
 316             AccountSummaryViewModel.scheduleAccountListReload();
 317
 318             if (profile == null) MainActivity.this.setTitle(R.string.app_name);
 319             else MainActivity.this.setTitle(profile.getName());
 320             MainActivity.this.updateLastUpdateTextFromDB();
 321             int old_index = -1;
 322             int new_index = -1;
 323             if (arg != null) {
 324                 MobileLedgerProfile old = (MobileLedgerProfile) arg;
 325                 old_index = Data.getProfileIndex(old);
 326                 new_index = Data.getProfileIndex(profile);
 327             }
 328
 329             if ((old_index != -1) && (new_index != -1)) {
 330                 mProfileListAdapter.notifyItemChanged(old_index);
 331                 mProfileListAdapter.notifyItemChanged(new_index);
 332             }
 333             else mProfileListAdapter.notifyDataSetChanged();
 334
 335             MainActivity.this.collapseProfileList();
 336
 337             int newProfileTheme = (profile == null) ? -1 : profile.getThemeId();
 338             if (newProfileTheme != Colors.profileThemeId) {
 339                 Log.d("profiles", String.format("profile theme %d → %d", Colors.profileThemeId,
 340                         newProfileTheme));
 341                 MainActivity.this.profileThemeChanged();
 342                 Colors.profileThemeId = newProfileTheme;
 343                 // profileThemeChanged would restart the activity, so no need to reload the
 344                 // data sets below
 345                 return;
 346             }
 347             drawer.closeDrawers();
 348
 349             if (profile == null) {
 350                 mToolbar.setSubtitle(null);
 351                 fab.hide();
 352             }
 353             else {
 354                 if (profile.isPostingPermitted()) {
 355                     mToolbar.setSubtitle(null);
 356                     fab.show();
 357                 }
 358                 else {
 359                     mToolbar.setSubtitle(R.string.profile_subitlte_read_only);
 360                     fab.hide();
 361                 }
 362             }
 363         });
 364     }
 365     private void updateLastUpdateDisplay() {
 366         LinearLayout l = findViewById(R.id.transactions_last_update_layout);
 367         TextView v = findViewById(R.id.transactions_last_update);
 368         Date date = Data.lastUpdateDate.get();
 369         if (date == null) {
 370             l.setVisibility(View.INVISIBLE);
 371             Log.d("main", "no last update date :(");
 372         }
 373         else {
 374             final String text = DateFormat.getDateTimeInstance().format(date);
 375             v.setText(text);
 376             l.setVisibility(View.VISIBLE);
 377             Log.d("main", String.format("Date formatted: %s", text));
 378         }
 379     }
 380     @Override
 381     public void finish() {
 382         if (profilesObserver != null) {
 383             Data.profiles.deleteObserver(profilesObserver);
 384             profilesObserver = null;
 385         }
 386
 387         if (profileObserver != null) {
 388             Data.profile.deleteObserver(profileObserver);
 389             profileObserver = null;
 390         }
 391
 392         super.finish();
 393     }
 394     private void profileThemeChanged() {
 395         setupProfileColors();
 396
 397         Bundle bundle = new Bundle();
 398         onSaveInstanceState(bundle);
 399         // restart activity to reflect theme change
 400         finish();
 401         Intent intent = new Intent(this, this.getClass());
 402         intent.putExtra(BUNDLE_SAVED_STATE, bundle);
 403         startActivity(intent);
 404     }
 405     public void startEditProfileActivity(MobileLedgerProfile profile) {
 406         Intent intent = new Intent(this, ProfileDetailActivity.class);
 407         Bundle args = new Bundle();
 408         if (profile != null) {
 409             int index = Data.getProfileIndex(profile);
 410             if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
 411         }
 412         intent.putExtras(args);
 413         startActivity(intent, args);
 414     }
 415     private void setupProfile() {
 416         String profileUUID = MLDB.getOption(MLDB.OPT_PROFILE_UUID, null);
 417         MobileLedgerProfile profile;
 418
 419         profile = Data.getProfile(profileUUID);
 420
 421         if (Data.profiles.isEmpty()) {
 422             findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
 423             findViewById(R.id.pager_layout).setVisibility(View.GONE);
 424             return;
 425         }
 426
 427         findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
 428         findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
 429
 430         if (profile == null) profile = Data.profiles.get(0);
 431
 432         if (profile == null) throw new AssertionError("profile must have a value");
 433
 434         Data.setCurrentProfile(profile);
 435     }
 436     public void fabNewTransactionClicked(View view) {
 437         Intent intent = new Intent(this, NewTransactionActivity.class);
 438         startActivity(intent);
 439         overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
 440     }
 441     public void navSettingsClicked(View view) {
 442         Intent intent = new Intent(this, SettingsActivity.class);
 443         startActivity(intent);
 444         drawer.closeDrawers();
 445     }
 446     public void markDrawerItemCurrent(int id) {
 447         TextView item = drawer.findViewById(id);
 448         item.setBackgroundColor(Colors.tableRowDarkBG);
 449
 450         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
 451         for (int i = 0; i < actions.getChildCount(); i++) {
 452             View view = actions.getChildAt(i);
 453             if (view.getId() != id) {
 454                 view.setBackgroundColor(Color.TRANSPARENT);
 455             }
 456         }
 457     }
 458     public void onAccountSummaryClicked(View view) {
 459         drawer.closeDrawers();
 460
 461         showAccountSummaryFragment();
 462     }
 463     private void showAccountSummaryFragment() {
 464         mViewPager.setCurrentItem(0, true);
 465         Data.accountFilter.set(null);
 466 //        FragmentTransaction ft = fragmentManager.beginTransaction();
 467 //        accountSummaryFragment = new AccountSummaryFragment();
 468 //        ft.replace(R.id.root_frame, accountSummaryFragment);
 469 //        ft.commit();
 470 //        currentFragment = accountSummaryFragment;
 471     }
 472     public void onLatestTransactionsClicked(View view) {
 473         drawer.closeDrawers();
 474
 475         showTransactionsFragment((String) null);
 476     }
 477     private void resetFragmentBackStack() {
 478 //        fragmentManager.popBackStack(0, FragmentManager.POP_BACK_STACK_INCLUSIVE);
 479     }
 480     private void showTransactionsFragment(String accName) {
 481         Data.accountFilter.set(accName);
 482         Data.accountFilter.notifyObservers();
 483         mViewPager.setCurrentItem(1, true);
 484     }
 485     private void showTransactionsFragment(LedgerAccount account) {
 486         showTransactionsFragment((account == null) ? (String) null : account.getName());
 487 //        FragmentTransaction ft = fragmentManager.beginTransaction();
 488 //        if (transactionListFragment == null) {
 489 //            Log.d("flow", "MainActivity creating TransactionListFragment");
 490 //            transactionListFragment = new TransactionListFragment();
 491 //        }
 492 //        Bundle bundle = new Bundle();
 493 //        if (account != null) {
 494 //            bundle.putString(TransactionListFragment.BUNDLE_KEY_FILTER_ACCOUNT_NAME,
 495 //                    account.getName());
 496 //        }
 497 //        transactionListFragment.setArguments(bundle);
 498 //        ft.replace(R.id.root_frame, transactionListFragment);
 499 //        if (account != null)
 500 //            ft.addToBackStack(getResources().getString(R.string.title_activity_transaction_list));
 501 //        ft.commit();
 502 //
 503 //        currentFragment = transactionListFragment;
 504     }
 505     public void showAccountTransactions(LedgerAccount account) {
 506         mBackMeansToAccountList = true;
 507         showTransactionsFragment(account);
 508     }
 509     @Override
 510     public void onBackPressed() {
 511         DrawerLayout drawer = findViewById(R.id.drawer_layout);
 512         if (drawer.isDrawerOpen(GravityCompat.START)) {
 513             drawer.closeDrawer(GravityCompat.START);
 514         }
 515         else {
 516             if (mBackMeansToAccountList && (mViewPager.getCurrentItem() == 1)) {
 517                 Data.accountFilter.set(null);
 518                 showAccountSummaryFragment();
 519                 mBackMeansToAccountList = false;
 520             }
 521             else {
 522                 Log.d("fragments", String.format("manager stack: %d",
 523                         fragmentManager.getBackStackEntryCount()));
 524
 525                 super.onBackPressed();
 526             }
 527         }
 528     }
 529     public void updateLastUpdateTextFromDB() {
 530         {
 531             final MobileLedgerProfile profile = Data.profile.get();
 532             long last_update =
 533                     (profile != null) ? profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L) : 0;
 534
 535             Log.d("transactions", String.format("Last update = %d", last_update));
 536             if (last_update == 0) {
 537                 Data.lastUpdateDate.set(null);
 538             }
 539             else {
 540                 Data.lastUpdateDate.set(new Date(last_update));
 541             }
 542         }
 543     }
 544     public void scheduleTransactionListRetrieval() {
 545         if (Data.profile.get() == null) return;
 546
 547         retrieveTransactionsTask = new RetrieveTransactionsTask(new WeakReference<>(this));
 548
 549         retrieveTransactionsTask.execute();
 550     }
 551     public void onStopTransactionRefreshClick(View view) {
 552         Log.d("interactive", "Cancelling transactions refresh");
 553         if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
 554         bTransactionListCancelDownload.setEnabled(false);
 555     }
 556     public void onRetrieveDone(String error) {
 557         progressLayout.setVisibility(View.GONE);
 558
 559         if (error == null) {
 560             updateLastUpdateTextFromDB();
 561
 562             new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 563             TransactionListViewModel.scheduleTransactionListReload();
 564         }
 565         else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
 566     }
 567     public void onRetrieveStart() {
 568         bTransactionListCancelDownload.setEnabled(true);
 569         progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
 570         progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
 571         progressBar.setIndeterminate(true);
 572         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
 573         else progressBar.setProgress(0);
 574         progressLayout.setVisibility(View.VISIBLE);
 575     }
 576     public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
 577         if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
 578             (progress.getTotal() == 0))
 579         {
 580             progressBar.setIndeterminate(true);
 581         }
 582         else {
 583             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 584                 progressBar.setMin(0);
 585             }
 586             progressBar.setMax(progress.getTotal());
 587             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 588                 progressBar.setProgress(progress.getProgress(), true);
 589             }
 590             else progressBar.setProgress(progress.getProgress());
 591             progressBar.setIndeterminate(false);
 592         }
 593     }
 594     public void fabShouldShow() {
 595         MobileLedgerProfile profile = Data.profile.get();
 596         if ((profile != null) && profile.isPostingPermitted()) fab.show();
 597     }
 598     public void navProfilesHeadClicked(View view) {
 599         if (profileListExpanded) {
 600             collapseProfileList();
 601         }
 602         else {
 603             expandProfileList();
 604         }
 605     }
 606     private void expandProfileList() {
 607         profileListExpanded = true;
 608
 609
 610         profileListContainer.setVisibility(View.VISIBLE);
 611         profileListContainer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_down));
 612         profileListHeadArrow.startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180));
 613         profileListHeadMore.setVisibility(View.VISIBLE);
 614         profileListHeadMore.startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
 615         findViewById(R.id.nav_profile_list).setMinimumHeight(
 616                 (int) (getResources().getDimension(R.dimen.thumb_row_height) *
 617                        Data.profiles.size()));
 618     }
 619     private void collapseProfileList() {
 620         profileListExpanded = false;
 621
 622         final Animation animation = AnimationUtils.loadAnimation(this, R.anim.slide_up);
 623         animation.setAnimationListener(new Animation.AnimationListener() {
 624             @Override
 625             public void onAnimationStart(Animation animation) {
 626
 627             }
 628             @Override
 629             public void onAnimationEnd(Animation animation) {
 630                 profileListContainer.setVisibility(View.GONE);
 631             }
 632             @Override
 633             public void onAnimationRepeat(Animation animation) {
 634
 635             }
 636         });
 637         mProfileListAdapter.stopEditingProfiles();
 638
 639         profileListContainer.startAnimation(animation);
 640         profileListHeadArrow.setRotation(0f);
 641         profileListHeadArrow
 642                 .startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180_back));
 643         profileListHeadMore.setVisibility(View.GONE);
 644     }
 645     public void onProfileRowClicked(View v) {
 646         Data.setCurrentProfile((MobileLedgerProfile) v.getTag());
 647     }
 648     public void enableProfileModifications() {
 649         profileModificationEnabled = true;
 650         ViewGroup profileList = findViewById(R.id.nav_profile_list);
 651         for (int i = 0; i < profileList.getChildCount(); i++) {
 652             View aRow = profileList.getChildAt(i);
 653             aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.VISIBLE);
 654             aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.VISIBLE);
 655         }
 656         // FIXME enable rearranging
 657
 658     }
 659     public void disableProfileModifications() {
 660         profileModificationEnabled = false;
 661         ViewGroup profileList = findViewById(R.id.nav_profile_list);
 662         for (int i = 0; i < profileList.getChildCount(); i++) {
 663             View aRow = profileList.getChildAt(i);
 664             aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.GONE);
 665             aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.INVISIBLE);
 666         }
 667         // FIXME disable rearranging
 668
 669     }
 670     public void onAccountSummaryRowViewClicked(View view) {
 671         ViewGroup row;
 672         if ( view.getId() == R.id.account_expander ) row = (ViewGroup) view.getParent().getParent();
 673         else row = (ViewGroup) view.getParent();
 674
 675         LedgerAccount acc = (LedgerAccount) row.getTag();
 676         switch (view.getId()) {
 677             case R.id.account_row_acc_name:
 678             case R.id.account_expander:
 679             case R.id.account_expander_container:
 680                 Log.d("accounts", "Account expander clicked");
 681                 if (!acc.hasSubAccounts()) return;
 682
 683                 boolean wasExpanded = acc.isExpanded();
 684
 685                 View arrow = row.findViewById(R.id.account_expander_container);
 686
 687                 arrow.clearAnimation();
 688                 ViewPropertyAnimator animator = arrow.animate();
 689
 690                 acc.toggleExpanded();
 691                 DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
 692                         new Object[]{acc.isExpanded(), acc.getName(), Data.profile.get().getUuid()
 693                         });
 694
 695                 if (wasExpanded) {
 696                     Log.d("accounts", String.format("Collapsing account '%s'", acc.getName()));
 697                     arrow.setRotation(0);
 698                     animator.rotationBy(180);
 699
 700                     // removing all child accounts from the view
 701                     int start = -1, count = 0;
 702                     try (LockHolder lh = Data.accounts.lockForWriting()) {
 703                         for (int i = 0; i < Data.accounts.size(); i++) {
 704                             if (acc.isParentOf(Data.accounts.get(i))) {
 705 //                                Log.d("accounts", String.format("Found a child '%s' at position %d",
 706 //                                        Data.accounts.get(i).getName(), i));
 707                                 if (start == -1) {
 708                                     start = i;
 709                                 }
 710                                 count++;
 711                             }
 712                             else {
 713                                 if (start != -1) {
 714 //                                    Log.d("accounts",
 715 //                                            String.format("Found a non-child '%s' at position %d",
 716 //                                                    Data.accounts.get(i).getName(), i));
 717                                     break;
 718                                 }
 719                             }
 720                         }
 721
 722                         if (start != -1) {
 723                             for (int j = 0; j < count; j++) {
 724 //                                Log.d("accounts", String.format("Removing item %d: %s", start + j,
 725 //                                        Data.accounts.get(start).getName()));
 726                                 Data.accounts.removeQuietly(start);
 727                             }
 728
 729                             mAccountSummaryFragment.modelAdapter
 730                                     .notifyItemRangeRemoved(start, count);
 731                         }
 732                     }
 733                 }
 734                 else {
 735                     Log.d("accounts", String.format("Expanding account '%s'", acc.getName()));
 736                     arrow.setRotation(180);
 737                     animator.rotationBy(-180);
 738                     List<LedgerAccount> children =
 739                             Data.profile.get().loadVisibleChildAccountsOf(acc);
 740                     try (LockHolder lh = Data.accounts.lockForWriting()) {
 741                         int parentPos = Data.accounts.indexOf(acc);
 742                         if (parentPos != -1) {
 743                             // may have disappeared in a concurrent refresh operation
 744                             Data.accounts.addAllQuietly(parentPos + 1, children);
 745                             mAccountSummaryFragment.modelAdapter
 746                                     .notifyItemRangeInserted(parentPos + 1, children.size());
 747                         }
 748                     }
 749                 }
 750                 break;
 751             case R.id.account_row_acc_amounts:
 752                 if (acc.getAmountCount() > AccountSummaryAdapter.AMOUNT_LIMIT) {
 753                     acc.toggleAmountsExpanded();
 754                     DbOpQueue
 755                             .add("update accounts set amounts_expanded=? where name=? and profile=?",
 756                                     new Object[]{acc.amountsExpanded(), acc.getName(),
 757                                                  Data.profile.get().getUuid()
 758                                     });
 759                     Data.accounts.triggerItemChangedNotification(acc);
 760                 }
 761                 break;
 762         }
 763     }
 764
 765     public class SectionsPagerAdapter extends FragmentPagerAdapter {
 766
 767         public SectionsPagerAdapter(FragmentManager fm) {
 768             super(fm);
 769         }
 770
 771         @Override
 772         public Fragment getItem(int position) {
 773             Log.d("main", String.format("Switching to fragment %d", position));
 774             switch (position) {
 775                 case 0:
 776 //                    Log.d("flow", "Creating account summary fragment");
 777                     return mAccountSummaryFragment = new AccountSummaryFragment();
 778                 case 1:
 779                     return new TransactionListFragment();
 780                 default:
 781                     throw new IllegalStateException(
 782                             String.format("Unexpected fragment index: " + "%d", position));
 783             }
 784         }
 785
 786         @Override
 787         public int getCount() {
 788             return 2;
 789         }
 790     }
 791 }