]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/ui/activity/MainActivity.java
no direct interface to ObservableList's value
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / activity / MainActivity.java
index 64f613827dc730e2e6f9efe654dabddb58bb1a85..0f668cee32379af896fc0293dfa47c1826f431e8 100644 (file)
 /*
- * Copyright © 2018 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
+ * Copyright © 2019 Damyan Ivanov.
+ * This file is part of MoLe.
+ * MoLe is free software: you can distribute it and/or modify it
  * under the term of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your opinion), any later version.
  *
- * Mobile-Ledger is distributed in the hope that it will be useful,
+ * MoLe is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License terms for details.
  *
  * You should have received a copy of the GNU General Public License
- * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  */
 
 package net.ktnx.mobileledger.ui.activity;
 
 import android.content.Intent;
 import android.content.pm.PackageInfo;
+import android.content.res.ColorStateList;
+import android.graphics.Color;
+import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.annotation.ColorInt;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentTransaction;
-import android.support.v4.view.GravityCompat;
-import android.support.v4.widget.DrawerLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
 import android.util.Log;
-import android.view.ContextMenu;
-import android.view.MenuItem;
 import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewPropertyAnimator;
+import android.view.animation.Animation;
+import android.view.animation.AnimationUtils;
 import android.widget.LinearLayout;
+import android.widget.ProgressBar;
 import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
 
 import net.ktnx.mobileledger.R;
+import net.ktnx.mobileledger.async.DbOpQueue;
+import net.ktnx.mobileledger.async.RefreshDescriptionsTask;
+import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
+import net.ktnx.mobileledger.model.Data;
 import net.ktnx.mobileledger.model.LedgerAccount;
+import net.ktnx.mobileledger.model.MobileLedgerProfile;
 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
+import net.ktnx.mobileledger.ui.profiles.ProfileDetailFragment;
+import net.ktnx.mobileledger.ui.profiles.ProfilesRecyclerViewAdapter;
 import net.ktnx.mobileledger.ui.transaction_list.TransactionListFragment;
+import net.ktnx.mobileledger.ui.transaction_list.TransactionListViewModel;
+import net.ktnx.mobileledger.utils.Colors;
+import net.ktnx.mobileledger.utils.MLDB;
+
+import java.lang.ref.WeakReference;
+import java.text.DateFormat;
+import java.util.Date;
+import java.util.List;
+import java.util.Observable;
+import java.util.Observer;
+
+import androidx.appcompat.app.ActionBarDrawerToggle;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.view.GravityCompat;
+import androidx.drawerlayout.widget.DrawerLayout;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.viewpager.widget.ViewPager;
 
-public class MainActivity extends AppCompatActivity {
+public class MainActivity extends ProfileThemedActivity {
+    private static final String STATE_CURRENT_PAGE = "current_page";
+    private static final String BUNDLE_SAVED_STATE = "bundle_savedState";
+    public AccountSummaryFragment mAccountSummaryFragment;
     DrawerLayout drawer;
-    private AccountSummaryFragment accountSummaryFragment;
-    private TransactionListFragment transactionListFragment;
-    private Fragment currentFragment = null;
+    private LinearLayout profileListContainer;
+    private View profileListHeadArrow, profileListHeadMore, profileListHeadCancel;
+    private LinearLayout profileListHeadMoreAndCancel;
     private FragmentManager fragmentManager;
+    private TextView tvLastUpdate;
+    private RetrieveTransactionsTask retrieveTransactionsTask;
+    private View bTransactionListCancelDownload;
+    private ProgressBar progressBar;
+    private LinearLayout progressLayout;
+    private SectionsPagerAdapter mSectionsPagerAdapter;
+    private ViewPager mViewPager;
+    private FloatingActionButton fab;
+    private boolean profileModificationEnabled = false;
+    private boolean profileListExpanded = false;
+    private ProfilesRecyclerViewAdapter mProfileListAdapter;
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        setupProfile();
 
+        updateLastUpdateTextFromDB();
+        Date lastUpdate = Data.lastUpdateDate.get();
+
+        long now = new Date().getTime();
+        if ((lastUpdate == null) || (now > (lastUpdate.getTime() + (24 * 3600 * 1000)))) {
+            if (lastUpdate == null) Log.d("db::", "WEB data never fetched. scheduling a fetch");
+            else Log.d("db",
+                    String.format("WEB data last fetched at %1.3f and now is %1.3f. re-fetching",
+                            lastUpdate.getTime() / 1000f, now / 1000f));
+
+            scheduleTransactionListRetrieval();
+        }
+    }
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putInt(STATE_CURRENT_PAGE, mViewPager.getCurrentItem());
+    }
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
         setContentView(R.layout.activity_main);
+
+        fab = findViewById(R.id.btn_add_transaction);
+        profileListContainer = findViewById(R.id.nav_profile_list_container);
+        profileListHeadArrow = findViewById(R.id.nav_profiles_arrow);
+        profileListHeadMore = findViewById(R.id.nav_profiles_start_edit);
+        profileListHeadCancel = findViewById(R.id.nav_profiles_cancel_edit);
+        profileListHeadMoreAndCancel = findViewById(R.id.nav_profile_list_head_buttons);
+        drawer = findViewById(R.id.drawer_layout);
+        tvLastUpdate = findViewById(R.id.transactions_last_update);
+        bTransactionListCancelDownload = findViewById(R.id.transaction_list_cancel_download);
+        progressBar = findViewById(R.id.transaction_list_progress_bar);
+        progressLayout = findViewById(R.id.transaction_progress_layout);
+        fragmentManager = getSupportFragmentManager();
+        mSectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager);
+        mViewPager = findViewById(R.id.root_frame);
+
+        Bundle extra = getIntent().getBundleExtra(BUNDLE_SAVED_STATE);
+        if (extra != null && savedInstanceState == null) savedInstanceState = extra;
+
+
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
-        drawer = findViewById(R.id.drawer_layout);
+        Data.profile.addObserver((o, arg) -> {
+            MobileLedgerProfile profile = Data.profile.get();
+            runOnUiThread(() -> {
+                if (profile == null) setTitle(R.string.app_name);
+                else setTitle(profile.getName());
+                updateLastUpdateTextFromDB();
+                if (profile.isPostingPermitted()) {
+                    toolbar.setSubtitle(null);
+                    fab.show();
+                }
+                else {
+                    toolbar.setSubtitle(R.string.profile_subitlte_read_only);
+                    fab.hide();
+                }
+
+                int newProfileTheme = profile.getThemeId();
+                if (newProfileTheme != Colors.profileThemeId) {
+                    Log.d("profiles", String.format("profile theme %d → %d", Colors.profileThemeId,
+                            newProfileTheme));
+                    profileThemeChanged();
+                    Colors.profileThemeId = newProfileTheme;
+                }
+            });
+        });
+        Data.profiles.addObserver((o, arg) -> {
+            findViewById(R.id.nav_profile_list).setMinimumHeight(
+                    (int) (getResources().getDimension(R.dimen.thumb_row_height) *
+                           Data.profiles.size()));
+            mProfileListAdapter.notifyDataSetChanged();
+        });
+
         ActionBarDrawerToggle toggle =
                 new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open,
                         R.string.navigation_drawer_close);
         drawer.addDrawerListener(toggle);
         toggle.syncState();
 
-        android.widget.TextView ver = drawer.findViewById(R.id.drawer_version_text);
+        TextView ver = drawer.findViewById(R.id.drawer_version_text);
 
         try {
             PackageInfo pi =
@@ -74,121 +190,218 @@ public class MainActivity extends AppCompatActivity {
             e.printStackTrace();
         }
 
-        fragmentManager = getSupportFragmentManager();
+        if (progressBar == null)
+            throw new RuntimeException("Can't get hold on the transaction value progress bar");
+        if (progressLayout == null) throw new RuntimeException(
+                "Can't get hold on the transaction value progress bar layout");
+
+        markDrawerItemCurrent(R.id.nav_account_summary);
+
+        mViewPager.setAdapter(mSectionsPagerAdapter);
+        mViewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
+            @Override
+            public void onPageSelected(int position) {
+                switch (position) {
+                    case 0:
+                        markDrawerItemCurrent(R.id.nav_account_summary);
+                        break;
+                    case 1:
+                        markDrawerItemCurrent(R.id.nav_latest_transactions);
+                        break;
+                    default:
+                        Log.e("MainActivity", String.format("Unexpected page index %d", position));
+                }
+
+                super.onPageSelected(position);
+            }
+        });
+
+        if (savedInstanceState != null) {
+            int currentPage = savedInstanceState.getInt(STATE_CURRENT_PAGE, -1);
+            if (currentPage != -1) {
+                mViewPager.setCurrentItem(currentPage, false);
+            }
+        }
+
+        Data.lastUpdateDate.addObserver((o, arg) -> {
+            Log.d("main", "lastUpdateDate changed");
+            runOnUiThread(this::updateLastUpdateDisplay);
+        });
+
+        updateLastUpdateDisplay();
+
+        findViewById(R.id.btn_no_profiles_add)
+                .setOnClickListener(v -> startEditProfileActivity(null));
+
+        findViewById(R.id.btn_add_transaction).setOnClickListener(this::fabNewTransactionClicked);
+
+        findViewById(R.id.nav_new_profile_button)
+                .setOnClickListener(v -> startEditProfileActivity(null));
+
+        RecyclerView root = findViewById(R.id.nav_profile_list);
+        if (root == null)
+            throw new RuntimeException("Can't get hold on the transaction value view");
+
+        mProfileListAdapter = new ProfilesRecyclerViewAdapter();
+        root.setAdapter(mProfileListAdapter);
+
+        mProfileListAdapter.addEditingProfilesObserver(new Observer() {
+            @Override
+            public void update(Observable o, Object arg) {
+                if (mProfileListAdapter.isEditingProfiles()) {
+                    profileListHeadArrow.clearAnimation();
+                    profileListHeadArrow.setVisibility(View.GONE);
+                    profileListHeadMore.setVisibility(View.GONE);
+                    profileListHeadCancel.setVisibility(View.VISIBLE);
+                }
+                else {
+                    profileListHeadArrow.setRotation(180f);
+                    profileListHeadArrow.setVisibility(View.VISIBLE);
+                    profileListHeadCancel.setVisibility(View.GONE);
+                    profileListHeadMore.setVisibility(View.GONE);
+                    profileListHeadMore
+                            .setVisibility(profileListExpanded ? View.VISIBLE : View.GONE);
+                }
+            }
+        });
 
-        onAccountSummaryClicked(null);
+        LinearLayoutManager llm = new LinearLayoutManager(this);
+
+        llm.setOrientation(RecyclerView.VERTICAL);
+        root.setLayoutManager(llm);
+
+        profileListHeadMore.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
+        profileListHeadCancel.setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
+        profileListHeadMoreAndCancel
+                .setOnClickListener((v) -> mProfileListAdapter.flipEditingProfiles());
+
+        drawer.addDrawerListener(new DrawerLayout.SimpleDrawerListener() {
+            @Override
+            public void onDrawerClosed(View drawerView) {
+                super.onDrawerClosed(drawerView);
+                collapseProfileList();
+            }
+        });
     }
-    public void fab_new_transaction_clicked(View view) {
-        Intent intent = new Intent(this, NewTransactionActivity.class);
-        startActivity(intent);
-        overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
+    private void updateLastUpdateDisplay() {
+        TextView v = findViewById(R.id.transactions_last_update);
+        Date date = Data.lastUpdateDate.get();
+        if (date == null) {
+            v.setText(R.string.transaction_last_update_never);
+            Log.d("main", "no last update date :(");
+        }
+        else {
+            final String text = DateFormat.getDateTimeInstance().format(date);
+            v.setText(text);
+            Log.d("main", String.format("Date formatted: %s", text));
+        }
     }
+    private void profileThemeChanged() {
+        setupProfileColors();
 
-    public void nav_exit_clicked(View view) {
-        Log.w("app", "exiting");
+        Bundle bundle = new Bundle();
+        onSaveInstanceState(bundle);
+        // restart activity to reflect theme change
         finish();
+        Intent intent = new Intent(this, this.getClass());
+        intent.putExtra(BUNDLE_SAVED_STATE, bundle);
+        startActivity(intent);
     }
+    public void startEditProfileActivity(MobileLedgerProfile profile) {
+        Intent intent = new Intent(this, ProfileDetailActivity.class);
+        Bundle args = new Bundle();
+        if (profile != null) {
+            int index = Data.getProfileIndex(profile);
+            if (index != -1) intent.putExtra(ProfileDetailFragment.ARG_ITEM_ID, index);
+        }
+        intent.putExtras(args);
+        startActivity(intent, args);
+    }
+    private void setupProfile() {
+        String profileUUID = MLDB.getOption(MLDB.OPT_PROFILE_UUID, null);
+        MobileLedgerProfile profile;
+
+        profile = MobileLedgerProfile.loadAllFromDB(profileUUID);
+
+        if (Data.profiles.isEmpty()) {
+            findViewById(R.id.no_profiles_layout).setVisibility(View.VISIBLE);
+            findViewById(R.id.pager_layout).setVisibility(View.GONE);
+            return;
+        }
+
+        findViewById(R.id.pager_layout).setVisibility(View.VISIBLE);
+        findViewById(R.id.no_profiles_layout).setVisibility(View.GONE);
+
+        if (profile == null) profile = Data.profiles.get(0);
 
-    public void nav_settings_clicked(View view) {
+        if (profile == null) throw new AssertionError("profile must have a value");
+
+        Data.setCurrentProfile(profile);
+    }
+    public void fabNewTransactionClicked(View view) {
+        Intent intent = new Intent(this, NewTransactionActivity.class);
+        startActivity(intent);
+        overridePendingTransition(R.anim.slide_in_right, R.anim.dummy);
+    }
+    public void navSettingsClicked(View view) {
         Intent intent = new Intent(this, SettingsActivity.class);
         startActivity(intent);
+        drawer.closeDrawers();
     }
     public void markDrawerItemCurrent(int id) {
         TextView item = drawer.findViewById(id);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            item.setBackgroundColor(getResources().getColor(R.color.table_row_even_bg, getTheme()));
-        }
-        else {
-            item.setBackgroundColor(getResources().getColor(R.color.table_row_even_bg));
-        }
-
-        setTitle(item.getText());
-
-        @ColorInt int transparent = getResources().getColor(android.R.color.transparent);
+        item.setBackgroundColor(Colors.tableRowDarkBG);
 
         LinearLayout actions = drawer.findViewById(R.id.nav_actions);
         for (int i = 0; i < actions.getChildCount(); i++) {
             View view = actions.getChildAt(i);
             if (view.getId() != id) {
-                view.setBackgroundColor(transparent);
+                view.setBackgroundColor(Color.TRANSPARENT);
             }
         }
     }
-    public void onOptionsMenuClicked(MenuItem menuItem) {
-        ContextMenu.ContextMenuInfo info = menuItem.getMenuInfo();
-        switch (menuItem.getItemId()) {
-            case R.id.menu_acc_summary_cancel_selection:
-                if (accountSummaryFragment != null)
-                    accountSummaryFragment.onCancelAccSelection(menuItem);
-                break;
-            case R.id.menu_acc_summary_confirm_selection:
-                if (accountSummaryFragment != null)
-                    accountSummaryFragment.onConfirmAccSelection(menuItem);
-                break;
-            case R.id.menu_acc_summary_only_starred:
-                if (accountSummaryFragment != null)
-                    accountSummaryFragment.onShowOnlyStarredClicked(menuItem);
-                break;
-            case R.id.menu_transaction_list_filter:
-                if (transactionListFragment != null)
-                    transactionListFragment.onShowFilterClick(menuItem);
-                break;
-            default:
-                Log.e("menu", String.format("Menu item %d not handled", menuItem.getItemId()));
-        }
-    }
-    public void onViewClicked(View view) {
-        switch (view.getId()) {
-            case R.id.clearAccountNameFilter:
-                if (transactionListFragment != null)
-                    transactionListFragment.onClearAccountNameClick(view);
-                break;
-            default:
-                Log.e("click", String.format("View %d click not handled", view.getId()));
-        }
-    }
     public void onAccountSummaryClicked(View view) {
         drawer.closeDrawers();
 
-        resetFragmentBackStack();
-
         showAccountSummaryFragment();
     }
     private void showAccountSummaryFragment() {
-        FragmentTransaction ft = fragmentManager.beginTransaction();
-        accountSummaryFragment = new AccountSummaryFragment();
-        ft.replace(R.id.root_frame, accountSummaryFragment);
-        ft.commit();
-        currentFragment = accountSummaryFragment;
+        mViewPager.setCurrentItem(0, true);
+        TransactionListFragment.accountFilter.set(null);
+//        FragmentTransaction ft = fragmentManager.beginTransaction();
+//        accountSummaryFragment = new AccountSummaryFragment();
+//        ft.replace(R.id.root_frame, accountSummaryFragment);
+//        ft.commit();
+//        currentFragment = accountSummaryFragment;
     }
     public void onLatestTransactionsClicked(View view) {
         drawer.closeDrawers();
 
-        resetFragmentBackStack();
-
         showTransactionsFragment(null);
     }
     private void resetFragmentBackStack() {
 //        fragmentManager.popBackStack(0, FragmentManager.POP_BACK_STACK_INCLUSIVE);
     }
     private void showTransactionsFragment(LedgerAccount account) {
-        FragmentTransaction ft = fragmentManager.beginTransaction();
-        if (transactionListFragment == null) {
-            Log.d("flow", "MainActivity creating TransactionListFragment");
-            transactionListFragment = new TransactionListFragment();
-        }
-        Bundle bundle = new Bundle();
-        if (account != null) {
-            bundle.putString(TransactionListFragment.BUNDLE_KEY_FILTER_ACCOUNT_NAME,
-                    account.getName());
-        }
-        transactionListFragment.setArguments(bundle);
-        ft.replace(R.id.root_frame, transactionListFragment);
-        if (account != null)
-            ft.addToBackStack(getResources().getString(R.string.title_activity_transaction_list));
-        ft.commit();
-
-        currentFragment = transactionListFragment;
+        if (account != null) TransactionListFragment.accountFilter.set(account.getName());
+        mViewPager.setCurrentItem(1, true);
+//        FragmentTransaction ft = fragmentManager.beginTransaction();
+//        if (transactionListFragment == null) {
+//            Log.d("flow", "MainActivity creating TransactionListFragment");
+//            transactionListFragment = new TransactionListFragment();
+//        }
+//        Bundle bundle = new Bundle();
+//        if (account != null) {
+//            bundle.putString(TransactionListFragment.BUNDLE_KEY_FILTER_ACCOUNT_NAME,
+//                    account.getName());
+//        }
+//        transactionListFragment.setArguments(bundle);
+//        ft.replace(R.id.root_frame, transactionListFragment);
+//        if (account != null)
+//            ft.addToBackStack(getResources().getString(R.string.title_activity_transaction_list));
+//        ft.commit();
+//
+//        currentFragment = transactionListFragment;
     }
     public void showAccountTransactions(LedgerAccount account) {
         showTransactionsFragment(account);
@@ -206,5 +419,250 @@ public class MainActivity extends AppCompatActivity {
             super.onBackPressed();
         }
     }
+    public void updateLastUpdateTextFromDB() {
+        {
+            final MobileLedgerProfile profile = Data.profile.get();
+            long last_update =
+                    (profile != null) ? profile.getLongOption(MLDB.OPT_LAST_SCRAPE, 0L) : 0;
+
+            Log.d("transactions", String.format("Last update = %d", last_update));
+            if (last_update == 0) {
+                Data.lastUpdateDate.set(null);
+            }
+            else {
+                Data.lastUpdateDate.set(new Date(last_update));
+            }
+        }
+    }
+    public void scheduleTransactionListRetrieval() {
+        if (Data.profile.get() == null) return;
+
+        retrieveTransactionsTask = new RetrieveTransactionsTask(new WeakReference<>(this));
+
+        retrieveTransactionsTask.execute();
+    }
+    public void onStopTransactionRefreshClick(View view) {
+        Log.d("interactive", "Cancelling transactions refresh");
+        if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
+        bTransactionListCancelDownload.setEnabled(false);
+    }
+    public void onRetrieveDone(String error) {
+        progressLayout.setVisibility(View.GONE);
+
+        if (error == null) {
+            updateLastUpdateTextFromDB();
+
+            new RefreshDescriptionsTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+            TransactionListViewModel.scheduleTransactionListReload();
+        }
+        else Toast.makeText(this, error, Toast.LENGTH_LONG).show();
+    }
+    public void onRetrieveStart() {
+        bTransactionListCancelDownload.setEnabled(true);
+        progressBar.setIndeterminateTintList(ColorStateList.valueOf(Colors.primary));
+        progressBar.setProgressTintList(ColorStateList.valueOf(Colors.primary));
+        progressBar.setIndeterminate(true);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) progressBar.setProgress(0, false);
+        else progressBar.setProgress(0);
+        progressLayout.setVisibility(View.VISIBLE);
+    }
+    public void onRetrieveProgress(RetrieveTransactionsTask.Progress progress) {
+        if ((progress.getTotal() == RetrieveTransactionsTask.Progress.INDETERMINATE) ||
+            (progress.getTotal() == 0))
+        {
+            progressBar.setIndeterminate(true);
+        }
+        else {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                progressBar.setMin(0);
+            }
+            progressBar.setMax(progress.getTotal());
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                progressBar.setProgress(progress.getProgress(), true);
+            }
+            else progressBar.setProgress(progress.getProgress());
+            progressBar.setIndeterminate(false);
+        }
+    }
+    public void fabShouldShow() {
+        MobileLedgerProfile profile = Data.profile.get();
+        if ((profile != null) && profile.isPostingPermitted()) fab.show();
+    }
+    public void navProfilesHeadClicked(View view) {
+        if (profileListExpanded) {
+            collapseProfileList();
+        }
+        else {
+            expandProfileList();
+        }
+    }
+    private void expandProfileList() {
+        profileListExpanded = true;
+
+
+        profileListContainer.setVisibility(View.VISIBLE);
+        profileListContainer.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_down));
+        profileListHeadArrow.startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180));
+        profileListHeadMore.setVisibility(View.VISIBLE);
+        profileListHeadMore.startAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
+        findViewById(R.id.nav_profile_list).setMinimumHeight(
+                (int) (getResources().getDimension(R.dimen.thumb_row_height) *
+                       Data.profiles.size()));
+    }
+    private void collapseProfileList() {
+        profileListExpanded = false;
+
+        final Animation animation = AnimationUtils.loadAnimation(this, R.anim.slide_up);
+        animation.setAnimationListener(new Animation.AnimationListener() {
+            @Override
+            public void onAnimationStart(Animation animation) {
+
+            }
+            @Override
+            public void onAnimationEnd(Animation animation) {
+                profileListContainer.setVisibility(View.GONE);
+            }
+            @Override
+            public void onAnimationRepeat(Animation animation) {
+
+            }
+        });
+        mProfileListAdapter.stopEditingProfiles();
+
+        profileListContainer.startAnimation(animation);
+        profileListHeadArrow.setRotation(0f);
+        profileListHeadArrow
+                .startAnimation(AnimationUtils.loadAnimation(this, R.anim.rotate_180_back));
+        profileListHeadMore.setVisibility(View.GONE);
+    }
+    public void onProfileRowClicked(View v) {
+        Data.setCurrentProfile((MobileLedgerProfile) v.getTag());
+    }
+    public void enableProfileModifications() {
+        profileModificationEnabled = true;
+        ViewGroup profileList = findViewById(R.id.nav_profile_list);
+        for (int i = 0; i < profileList.getChildCount(); i++) {
+            View aRow = profileList.getChildAt(i);
+            aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.VISIBLE);
+            aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.VISIBLE);
+        }
+        // FIXME enable rearranging
+
+    }
+    public void disableProfileModifications() {
+        profileModificationEnabled = false;
+        ViewGroup profileList = findViewById(R.id.nav_profile_list);
+        for (int i = 0; i < profileList.getChildCount(); i++) {
+            View aRow = profileList.getChildAt(i);
+            aRow.findViewById(R.id.profile_list_edit_button).setVisibility(View.GONE);
+            aRow.findViewById(R.id.profile_list_rearrange_handle).setVisibility(View.INVISIBLE);
+        }
+        // FIXME disable rearranging
+
+    }
+    public void onAccountSummaryRowViewClicked(View view) {
+        ViewGroup row = (ViewGroup) view.getParent();
+        LedgerAccount acc = (LedgerAccount) row.getTag();
+        switch (view.getId()) {
+            case R.id.account_row_acc_name:
+            case R.id.account_expander_container:
+                Log.d("accounts", "Account expander clicked");
+                if (!acc.hasSubAccounts()) return;
+
+                boolean wasExpanded = acc.isExpanded();
+
+                View arrow = row.findViewById(R.id.account_expander_container);
 
+                arrow.clearAnimation();
+                ViewPropertyAnimator animator = arrow.animate();
+
+                acc.toggleExpanded();
+                DbOpQueue.add("update accounts set expanded=? where name=? and profile=?",
+                        new Object[]{acc.isExpanded(), acc.getName(), Data.profile.get().getUuid()
+                        });
+
+                if (wasExpanded) {
+                    Log.d("accounts", String.format("Collapsing account '%s'", acc.getName()));
+                    arrow.setRotation(0);
+                    animator.rotationBy(180);
+
+                    // removing all child accounts from the view
+                    int start = -1, count = 0;
+                        for (int i = 0; i < Data.accounts.size(); i++) {
+                            if (acc.isParentOf(Data.accounts.get(i))) {
+//                                Log.d("accounts", String.format("Found a child '%s' at position %d",
+//                                        Data.accounts.get(i).getName(), i));
+                                if (start == -1) {
+                                    start = i;
+                                }
+                                count++;
+                            }
+                            else {
+                                if (start != -1) {
+//                                    Log.d("accounts",
+//                                            String.format("Found a non-child '%s' at position %d",
+//                                                    Data.accounts.get(i).getName(), i));
+                                    break;
+                                }
+                            }
+                        }
+
+                        if (start != -1) {
+                            for (int j = 0; j < count; j++) {
+//                                Log.d("accounts", String.format("Removing item %d: %s", start + j,
+//                                        Data.accounts.get(start).getName()));
+                                Data.accounts.removeQuietly(start);
+                            }
+
+                            mAccountSummaryFragment.modelAdapter
+                                    .notifyItemRangeRemoved(start, count);
+                    }
+                }
+                else {
+                    Log.d("accounts", String.format("Expanding account '%s'", acc.getName()));
+                    arrow.setRotation(180);
+                    animator.rotationBy(-180);
+                    List<LedgerAccount> children =
+                            Data.profile.get().loadVisibleChildAccountsOf(acc);
+                        int parentPos = Data.accounts.indexOf(acc);
+                        if (parentPos != -1) {
+                            // may have disappeared in a concurrent refresh operation
+                            Data.accounts.addAllQuietly(parentPos + 1, children);
+                            mAccountSummaryFragment.modelAdapter
+                                    .notifyItemRangeInserted(parentPos + 1, children.size());
+                        }
+                }
+                break;
+            case R.id.account_row_acc_amounts:
+                showAccountTransactions(acc);
+                break;
+        }
+    }
+
+    public class SectionsPagerAdapter extends FragmentPagerAdapter {
+
+        public SectionsPagerAdapter(FragmentManager fm) {
+            super(fm);
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            Log.d("main", String.format("Switching to fragment %d", position));
+            switch (position) {
+                case 0:
+//                    Log.d("flow", "Creating account summary fragment");
+                    return mAccountSummaryFragment = new AccountSummaryFragment();
+                case 1:
+                    return new TransactionListFragment();
+                default:
+                    throw new IllegalStateException(
+                            String.format("Unexpected fragment index: " + "%d", position));
+            }
+        }
+
+        @Override
+        public int getCount() {
+            return 2;
+        }
+    }
 }