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

   1 /*
   2  * Copyright © 2018 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.design.widget.Snackbar;
  29 import android.support.v4.app.Fragment;
  30 import android.support.v4.widget.SwipeRefreshLayout;
  31 import android.support.v7.widget.LinearLayoutManager;
  32 import android.support.v7.widget.RecyclerView;
  33 import android.util.Log;
  34 import android.view.LayoutInflater;
  35 import android.view.Menu;
  36 import android.view.MenuInflater;
  37 import android.view.MenuItem;
  38 import android.view.View;
  39 import android.view.ViewGroup;
  40
  41 import net.ktnx.mobileledger.R;
  42 import net.ktnx.mobileledger.ui.RecyclerItemListener;
  43 import net.ktnx.mobileledger.async.RetrieveAccountsTask;
  44 import net.ktnx.mobileledger.model.LedgerAccount;
  45 import net.ktnx.mobileledger.ui.activity.MainActivity;
  46 import net.ktnx.mobileledger.utils.MLDB;
  47
  48 import java.lang.ref.WeakReference;
  49 import java.util.Date;
  50 import java.util.List;
  51
  52 import static net.ktnx.mobileledger.ui.activity.SettingsActivity.PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS;
  53
  54 public class AccountSummaryFragment extends Fragment {
  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 MainActivity mActivity;
  64     private FloatingActionButton fab;
  65     private SwipeRefreshLayout swiper;
  66     @Override
  67     public void onCreate(@Nullable Bundle savedInstanceState) {
  68         super.onCreate(savedInstanceState);
  69         setHasOptionsMenu(true);
  70     }
  71     public void onAttach(Context context) {
  72         super.onAttach(context);
  73         mActivity = (MainActivity) context;
  74     }
  75     @Override
  76     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
  77                              @Nullable Bundle savedInstanceState) {
  78         return inflater.inflate(R.layout.account_summary_fragment, container, false);
  79     }
  80
  81     @Override
  82     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
  83         super.onActivityCreated(savedInstanceState);
  84
  85         model = ViewModelProviders.of(this).get(AccountSummaryViewModel.class);
  86         List<LedgerAccount> accounts = model.getAccounts(this.getContext());
  87         modelAdapter = new AccountSummaryAdapter(accounts);
  88
  89         RecyclerView root = mActivity.findViewById(R.id.account_root);
  90         root.setAdapter(modelAdapter);
  91
  92         LinearLayoutManager llm = new LinearLayoutManager(mActivity);
  93         llm.setOrientation(LinearLayoutManager.VERTICAL);
  94         root.setLayoutManager(llm);
  95
  96         fab = mActivity.findViewById(R.id.btn_add_transaction);
  97
  98         root.addOnItemTouchListener(new RecyclerItemListener(mActivity, root,
  99                 new RecyclerItemListener.RecyclerTouchListener() {
 100                     @Override
 101                     public void onClickItem(View v, int position) {
 102                         Log.d("list", String.format("item %d clicked", position));
 103                         if (modelAdapter.isSelectionActive()) {
 104                             modelAdapter.selectItem(position);
 105                         }
 106                     }
 107
 108                     @Override
 109                     public void onLongClickItem(View v, int position) {
 110                         Log.d("list", String.format("item %d long-clicked", position));
 111                         modelAdapter.startSelection();
 112                         if (optMenu != null) {
 113                             optMenu.findItem(R.id.menu_acc_summary_cancel_selection)
 114                                     .setVisible(true);
 115                             optMenu.findItem(R.id.menu_acc_summary_confirm_selection)
 116                                     .setVisible(true);
 117                             optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(false);
 118                         }
 119                         {
 120                             if (fab != null) fab.hide();
 121                         }
 122                     }
 123                 }));
 124
 125         root.addOnScrollListener(new RecyclerView.OnScrollListener() {
 126             @Override
 127             public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
 128                 if (fab != null) {
 129                     if (dy < 0) fab.show();
 130                     if (dy > 0) fab.hide();
 131                 }
 132             }
 133         });
 134         swiper = mActivity.findViewById(R.id.account_swiper);
 135         swiper.setColorSchemeResources(R.color.colorPrimary, R.color.colorAccent);
 136         swiper.setOnRefreshListener(() -> {
 137             Log.d("ui", "refreshing accounts via swipe");
 138             update_accounts(true);
 139         });
 140         prepare_db();
 141 //        update_account_table();
 142         update_accounts(false);
 143
 144     }
 145     private void prepare_db() {
 146         account_list_last_updated = MLDB.get_option_value(mActivity, "last_refresh", (long) 0);
 147     }
 148
 149     private void update_accounts(boolean force) {
 150         long now = new Date().getTime();
 151         if ((now > (account_list_last_updated + (24 * 3600 * 1000))) || force) {
 152             Log.d("db",
 153                     "accounts last updated at " + account_list_last_updated + " and now is " + now +
 154                     ". re-fetching");
 155             update_accounts();
 156         }
 157     }
 158
 159     private void update_accounts() {
 160         RetrieveAccountsTask task = new RetrieveAccountsTask(new WeakReference<>(this));
 161
 162         task.setPref(PreferenceManager.getDefaultSharedPreferences(mActivity));
 163         task.execute();
 164
 165     }
 166     public void onAccountRefreshDone(int error) {
 167         swiper.setRefreshing(false);
 168         if (error != 0) {
 169             String err_text = getResources().getString(error);
 170             Log.d("visual", String.format("showing snackbar: %s", err_text));
 171             Snackbar.make(swiper, err_text, Snackbar.LENGTH_LONG).show();
 172         }
 173         else {
 174             MLDB.set_option_value(mActivity, "last_refresh", new Date().getTime());
 175             update_account_table();
 176         }
 177     }
 178     private void update_account_table() {
 179         if (this.getContext() == null) return;
 180
 181         model.reloadAccounts(this.getContext());
 182         modelAdapter.notifyDataSetChanged();
 183     }
 184     public void onRefreshAccountSummaryClicked(MenuItem mi) {
 185         update_accounts(true);
 186     }
 187
 188     public void onShowOnlyStarredClicked(MenuItem mi) {
 189         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(mActivity);
 190         boolean flag = pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false);
 191
 192         SharedPreferences.Editor editor = pref.edit();
 193         editor.putBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, !flag);
 194         Log.d("pref", "Setting show only starred accounts pref to " + (flag ? "false" : "true"));
 195         editor.apply();
 196
 197         update_account_table();
 198     }
 199
 200     void stopSelection() {
 201         modelAdapter.stopSelection();
 202         if (optMenu != null) {
 203             optMenu.findItem(R.id.menu_acc_summary_cancel_selection).setVisible(false);
 204             optMenu.findItem(R.id.menu_acc_summary_confirm_selection).setVisible(false);
 205             optMenu.findItem(R.id.menu_acc_summary_only_starred).setVisible(true);
 206         }
 207         {
 208             if (fab != null) fab.show();
 209         }
 210     }
 211     public void onCancelAccSelection(MenuItem item) {
 212         stopSelection();
 213     }
 214     public void onConfirmAccSelection(MenuItem item) {
 215         model.commitSelections(mActivity);
 216         stopSelection();
 217     }
 218     @Override
 219     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 220         // Inflate the menu; this adds items to the action bar if it is present.
 221         inflater.inflate(R.menu.account_summary, menu);
 222         optMenu = menu;
 223
 224         mShowHiddenAccounts = menu.findItem(R.id.menu_acc_summary_only_starred);
 225         if (mShowHiddenAccounts == null) throw new AssertionError();
 226
 227         sBindPreferenceSummaryToValueListener = (preference, value) -> mShowHiddenAccounts
 228                 .setChecked(preference.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
 229         SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(mActivity);
 230         pref.registerOnSharedPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
 231
 232         mShowHiddenAccounts.setChecked(pref.getBoolean(PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS, false));
 233
 234         Log.d("menu", "MainActivity: onCreateOptionsMenu called");
 235     }
 236 }