app/src/main/java/net/ktnx/mobileledger/ui/account_summary/AccountSummaryFragment.java

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of Mobile-Ledger.
   4  * Mobile-Ledger 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  * Mobile-Ledger 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 Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.account_summary;
  19
  20 import android.arch.lifecycle.ViewModelProviders;
  21 import android.content.Context;
  22 import android.content.SharedPreferences;
  23 import android.os.Bundle;
  24 import android.preference.PreferenceManager;
  25 import android.support.annotation.NonNull;
  26 import android.support.annotation.Nullable;
  27 import android.support.design.widget.FloatingActionButton;
  28 import android.support.v7.widget.LinearLayoutManager;
  29 import android.support.v7.widget.RecyclerView;
  30 import android.util.Log;
  31 import android.view.LayoutInflater;
  32 import android.view.Menu;
  33 import android.view.MenuInflater;
  34 import android.view.MenuItem;
  35 import android.view.View;
  36 import android.view.ViewGroup;
  37
  38 import net.ktnx.mobileledger.R;
  39 import net.ktnx.mobileledger.async.RetrieveAccountsTask;
  40 import net.ktnx.mobileledger.model.Data;
  41 import net.ktnx.mobileledger.model.LedgerAccount;
  42 import net.ktnx.mobileledger.ui.MobileLedgerListFragment;
  43 import net.ktnx.mobileledger.ui.RecyclerItemListener;
  44 import net.ktnx.mobileledger.ui.activity.MainActivity;
  45
  46 import java.lang.ref.WeakReference;
  47 import java.util.Date;
  48 import java.util.List;
  49 import java.util.Observable;
  50 import java.util.Observer;
  51
  52 import static net.ktnx.mobileledger.ui.activity.SettingsActivity.PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS;
  53
  54 public class AccountSummaryFragment extends MobileLedgerListFragment {
  55
  56     private static long account_list_last_updated;
  57     private static boolean account_list_needs_update = true;
  58     MenuItem mShowHiddenAccounts;
  59     SharedPreferences.OnSharedPreferenceChangeListener sBindPreferenceSummaryToValueListener;
  60     private AccountSummaryViewModel model;
  61     private AccountSummaryAdapter modelAdapter;
  62     private Menu optMenu;
  63     private FloatingActionButton fab;
  64     private Observer backgroundTaskCountObserver;
  65     @Override
  66     public void onDestroy() {
  67         if(backgroundTaskCountObserver!= null) {
  68             Log.d("acc", "destroying background task count observer");
  69             Data.backgroundTaskCount.deleteObserver(backgroundTaskCountObserver);
  70         }
  71         super.onDestroy();
  72     }
  73     @Override
  74     public void onCreate(@Nullable Bundle savedInstanceState) {
  75         super.onCreate(savedInstanceState);
  76         setHasOptionsMenu(true);
  77
  78         if (backgroundTaskCountObserver == null) {
  79             Log.d("acc", "creating background task count observer");
  80             Data.backgroundTaskCount.addObserver(backgroundTaskCountObserver = new Observer() {
  81                 @Override
  82                 public void update(Observable o, Object arg) {
  83                     if (mActivity == null) return;
  84                     if (swiper == null) return;
  85                     mActivity.runOnUiThread(new Runnable() {
  86                         @Override
  87                         public void run() {
  88                             int cnt = Data.backgroundTaskCount.get();
  89                             Log.d("acc", String.format("background task count changed to %d", cnt));
  90                             swiper.setRefreshing(cnt > 0);
  91                         }
  92                     });
  93                 }
  94             });
  95         }
  96     }
  97     public void onAttach(Context context) {
  98         super.onAttach(context);
  99         mActivity = (MainActivity) context;
 100     }
 101     @Override
 102     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
 103                              @Nullable Bundle savedInstanceState) {
 104         return inflater.inflate(R.layout.account_summary_fragment, container, false);
 105     }
 106
 107     @Override
 108     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 109         super.onActivityCreated(savedInstanceState);
 110
 111         mActivity.markDrawerItemCurrent(R.id.nav_account_summary);
 112
 113         model = ViewModelProviders.of(this).get(AccountSummaryViewModel.class);
 114         modelAdapter = new AccountSummaryAdapter();
 115
 116         RecyclerView root = mActivity.findViewById(R.id.account_root);
 117         root.setAdapter(modelAdapter);
 118
 119         LinearLayoutManager llm = new LinearLayoutManager(mActivity);
 120         llm.setOrientation(LinearLayoutManager.VERTICAL);
 121         root.setLayoutManager(llm);
 122
 123         fab = mActivity.findViewById(R.id.btn_add_transaction);
 124
 125         root.addOnItemTouchListener(new RecyclerItemListener(mActivity, root,
 126                 new RecyclerItemListener.RecyclerTouchListener() {
 127                     @Override
 128                     public void onClickItem(View v, int position) {
 129                         Log.d("value", String.format("item %d clicked", position));
 130                         if (modelAdapter.isSelectionActive()) {
 131                             modelAdapter.selectItem(position);
 132                         }
 133                         else {
 134                             List<LedgerAccount> accounts = Data.accounts.get();
 135                             if (accounts != null) {
 136                                 LedgerAccount account = accounts.get(position);
 137
 138                                 mActivity.showAccountTransactions(account);
 139                             }
 140                         }
 141                     }
 142
 143                     @Override
 144                     public void onLongClickItem(View v, int position) {
 145                         Log.d("value", String.format("item %d long-clicked", position));
 146                         modelAdapter.startSelection();
 147                         if (optMenu != null) {
 148                             optMenu.findItem(R.id.menu_acc_summary_cancel_selection)
 149                                     .setVisible(true);
 150                             optMenu.findItem(R.id.menu_acc_summary_confirm_selection)
 151                                     .setVisible(true);
 152                             optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(false);
 153                         }
 154                         {
 155                             if (fab != null) fab.hide();
 156                         }
 157                     }
 158                 }));
 159
 160         fab.show();
 161         root.addOnScrollListener(new RecyclerView.OnScrollListener() {
 162             @Override
 163             public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
 164                 if (fab != null) {
 165                     if (dy < 0) fab.show();
 166                     if (dy > 0) fab.hide();
 167                 }
 168             }
 169         });
 170         swiper = mActivity.findViewById(R.id.account_swiper);
 171         swiper.setColorSchemeResources(R.color.colorPrimary, R.color.colorAccent);
 172         swiper.setOnRefreshListener(() -> {
 173             Log.d("ui", "refreshing accounts via swipe");
 174             update_accounts(true);
 175         });
 176
 177         Data.accounts.addObserver(new Observer() {
 178             @Override
 179             public void update(Observable o, Object arg) {
 180                 mActivity.runOnUiThread(new Runnable() {
 181                     @Override
 182                     public void run() {
 183                         modelAdapter.notifyDataSetChanged();
 184                     }
 185                 });
 186             }
 187         });
 188         update_account_table();
 189     }
 190
 191     private void update_accounts(boolean force) {
 192         long now = new Date().getTime();
 193         if ((now > (account_list_last_updated + (24 * 3600 * 1000))) || force) {
 194             Log.d("db",
 195                     "accounts last updated at " + account_list_last_updated + " and now is " + now +
 196                     ". re-fetching");
 197             update_accounts();
 198         }
 199     }
 200
 201     private void update_accounts() {
 202         RetrieveAccountsTask task = new RetrieveAccountsTask(new WeakReference<>(mActivity));
 203
 204         task.setPref(PreferenceManager.getDefaultSharedPreferences(mActivity));
 205         task.execute();
 206
 207     }
 208     private void update_account_table() {
 209         if (this.getContext() == null) return;
 210
 211         model.scheduleAccountListReload(this.getContext());
 212     }
 213     public void onShowOnlyStarredClicked(MenuItem mi) {
 214         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(mActivity);
 215         boolean flag = pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false);
 216
 217         SharedPreferences.Editor editor = pref.edit();
 218         editor.putBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, !flag);
 219         Log.d("pref", "Setting show only starred accounts pref to " + (flag ? "false" : "true"));
 220         editor.apply();
 221
 222         update_account_table();
 223     }
 224
 225     void stopSelection() {
 226         modelAdapter.stopSelection();
 227         if (optMenu != null) {
 228             optMenu.findItem(R.id.menu_acc_summary_cancel_selection).setVisible(false);
 229             optMenu.findItem(R.id.menu_acc_summary_confirm_selection).setVisible(false);
 230             optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(true);
 231         }
 232         {
 233             if (fab != null) fab.show();
 234         }
 235     }
 236     public void onCancelAccSelection(MenuItem item) {
 237         stopSelection();
 238     }
 239     public void onConfirmAccSelection(MenuItem item) {
 240         AccountSummaryViewModel.commitSelections(mActivity);
 241         stopSelection();
 242     }
 243     @Override
 244     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 245         // Inflate the menu; this adds items to the action bar if it is present.
 246         inflater.inflate(R.menu.account_summary, menu);
 247         optMenu = menu;
 248
 249         mShowHiddenAccounts = menu.findItem(R.id.menu_acc_summary_only_starred);
 250         if (mShowHiddenAccounts == null) throw new AssertionError();
 251
 252         sBindPreferenceSummaryToValueListener = (preference, value) -> mShowHiddenAccounts
 253                 .setChecked(preference.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
 254         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(mActivity);
 255         pref.registerOnSharedPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
 256
 257         mShowHiddenAccounts.setChecked(pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
 258
 259         Log.d("menu", "MainActivity: onCreateOptionsMenu called");
 260     }
 261 }