app/src/main/java/net/ktnx/mobileledger/ui/CurrencySelectorFragment.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;
  19
  20 import android.app.Dialog;
  21 import android.content.Context;
  22 import android.os.Bundle;
  23 import android.view.View;
  24 import android.widget.RadioButton;
  25 import android.widget.RadioGroup;
  26 import android.widget.Switch;
  27 import android.widget.TextView;
  28
  29 import androidx.annotation.NonNull;
  30 import androidx.annotation.Nullable;
  31 import androidx.appcompat.app.AppCompatDialogFragment;
  32 import androidx.lifecycle.ViewModelProvider;
  33 import androidx.recyclerview.widget.GridLayoutManager;
  34 import androidx.recyclerview.widget.LinearLayoutManager;
  35 import androidx.recyclerview.widget.RecyclerView;
  36
  37 import net.ktnx.mobileledger.App;
  38 import net.ktnx.mobileledger.R;
  39 import net.ktnx.mobileledger.model.Currency;
  40 import net.ktnx.mobileledger.model.Data;
  41 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  42
  43 import java.util.ArrayList;
  44 import java.util.List;
  45 import java.util.Objects;
  46 import java.util.concurrent.CopyOnWriteArrayList;
  47
  48 /**
  49  * A fragment representing a list of Items.
  50  * <p/>
  51  * Activities containing this fragment MUST implement the {@link OnCurrencySelectedListener}
  52  * interface.
  53  */
  54 public class CurrencySelectorFragment extends AppCompatDialogFragment
  55         implements OnCurrencySelectedListener, OnCurrencyLongClickListener {
  56
  57     public static final int DEFAULT_COLUMN_COUNT = 2;
  58     private static final String ARG_COLUMN_COUNT = "column-count";
  59     private int mColumnCount = DEFAULT_COLUMN_COUNT;
  60     private OnCurrencySelectedListener mListener;
  61     private CurrencySelectorModel model;
  62
  63     /**
  64      * Mandatory empty constructor for the fragment manager to instantiate the
  65      * fragment (e.g. upon screen orientation changes).
  66      */
  67     public CurrencySelectorFragment() {
  68     }
  69     @SuppressWarnings("unused")
  70     public static CurrencySelectorFragment newInstance() {
  71         return newInstance(DEFAULT_COLUMN_COUNT);
  72     }
  73     public static CurrencySelectorFragment newInstance(int columnCount) {
  74         CurrencySelectorFragment fragment = new CurrencySelectorFragment();
  75         Bundle args = new Bundle();
  76         args.putInt(ARG_COLUMN_COUNT, columnCount);
  77         fragment.setArguments(args);
  78         return fragment;
  79     }
  80     @Override
  81     public void onCreate(Bundle savedInstanceState) {
  82         super.onCreate(savedInstanceState);
  83
  84         if (getArguments() != null) {
  85             mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT, DEFAULT_COLUMN_COUNT);
  86         }
  87     }
  88     @NonNull
  89     @Override
  90     public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
  91         Context context = Objects.requireNonNull(getContext());
  92         Dialog csd = new Dialog(context);
  93         csd.setContentView(R.layout.fragment_currency_selector_list);
  94         csd.setTitle(R.string.choose_currency_label);
  95
  96         RecyclerView recyclerView = csd.findViewById(R.id.list);
  97
  98         if (mColumnCount <= 1) {
  99             recyclerView.setLayoutManager(new LinearLayoutManager(context));
 100         }
 101         else {
 102             recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
 103         }
 104         model = new ViewModelProvider(this).get(CurrencySelectorModel.class);
 105         MobileLedgerProfile profile = Objects.requireNonNull(Data.profile.getValue());
 106
 107         model.currencies.setValue(new CopyOnWriteArrayList<>(profile.getCurrencies()));
 108         CurrencySelectorRecyclerViewAdapter adapter = new CurrencySelectorRecyclerViewAdapter();
 109         model.currencies.observe(this, list -> adapter.submitList(list));
 110
 111         recyclerView.setAdapter(adapter);
 112         adapter.setCurrencySelectedListener(this);
 113         adapter.setCurrencyLongClickListener(this);
 114
 115         final TextView tvNewCurrName = csd.findViewById(R.id.new_currency_name);
 116         final TextView tvNoCurrBtn = csd.findViewById(R.id.btn_no_currency);
 117         final TextView tvAddCurrOkBtn = csd.findViewById(R.id.btn_add_currency);
 118         final TextView tvAddCurrBtn = csd.findViewById(R.id.btn_add_new);
 119
 120         tvNewCurrName.setVisibility(View.GONE);
 121         tvAddCurrOkBtn.setVisibility(View.GONE);
 122         tvNoCurrBtn.setVisibility(View.VISIBLE);
 123         tvAddCurrBtn.setVisibility(View.VISIBLE);
 124
 125         tvAddCurrBtn.setOnClickListener(v -> {
 126             tvNewCurrName.setVisibility(View.VISIBLE);
 127             tvAddCurrOkBtn.setVisibility(View.VISIBLE);
 128
 129             tvNoCurrBtn.setVisibility(View.GONE);
 130             tvAddCurrBtn.setVisibility(View.GONE);
 131
 132             tvNewCurrName.setText(null);
 133             tvNewCurrName.requestFocus();
 134             net.ktnx.mobileledger.utils.Misc.showSoftKeyboard(this);
 135         });
 136
 137         tvAddCurrOkBtn.setOnClickListener(v -> {
 138
 139
 140             String currName = String.valueOf(tvNewCurrName.getText());
 141             if (!currName.isEmpty()) {
 142                 List<Currency> list = new ArrayList<>(model.currencies.getValue());
 143                 // FIXME hardcoded position and gap setting
 144                 list.add(new Currency(profile, String.valueOf(tvNewCurrName.getText()),
 145                         Currency.Position.after, false));
 146                 model.currencies.setValue(list);
 147             }
 148
 149             tvNewCurrName.setVisibility(View.GONE);
 150             tvAddCurrOkBtn.setVisibility(View.GONE);
 151
 152             tvNoCurrBtn.setVisibility(View.VISIBLE);
 153             tvAddCurrBtn.setVisibility(View.VISIBLE);
 154         });
 155
 156         tvNoCurrBtn.setOnClickListener(v -> {
 157             adapter.notifyCurrencySelected(null);
 158             dismiss();
 159         });
 160
 161         RadioButton rbPositionLeft = csd.findViewById(R.id.currency_position_left);
 162         RadioButton rbPositionRight = csd.findViewById(R.id.currency_position_right);
 163
 164         if (Data.currencySymbolPosition.getValue() == Currency.Position.before)
 165             rbPositionLeft.toggle();
 166         else
 167             rbPositionRight.toggle();
 168
 169         RadioGroup rgPosition = csd.findViewById(R.id.position_radio_group);
 170         rgPosition.setOnCheckedChangeListener((group, checkedId) -> {
 171             if (checkedId == R.id.currency_position_left)
 172                 Data.currencySymbolPosition.setValue(Currency.Position.before);
 173             else
 174                 Data.currencySymbolPosition.setValue(Currency.Position.after);
 175         });
 176
 177         Switch gap = csd.findViewById(R.id.currency_gap);
 178
 179         gap.setChecked(Data.currencyGap.getValue());
 180
 181         gap.setOnCheckedChangeListener((v, checked) -> {
 182             Data.currencyGap.setValue(checked);
 183         });
 184
 185         return csd;
 186     }
 187     public void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
 188         mListener = listener;
 189     }
 190     public void resetOnCurrencySelectedListener() {
 191         mListener = null;
 192     }
 193     @Override
 194     public void onCurrencySelected(Currency item) {
 195         if (mListener != null)
 196             mListener.onCurrencySelected(item);
 197
 198         dismiss();
 199     }
 200
 201     @Override
 202     public void onCurrencyLongClick(Currency item) {
 203         ArrayList<Currency> list = new ArrayList<>(model.currencies.getValue());
 204         App.getDatabase()
 205            .execSQL("delete from currencies where id=?", new Object[]{item.getId()});
 206         list.remove(item);
 207         model.currencies.setValue(list);
 208     }
 209 }