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     public static final String ARG_COLUMN_COUNT = "column-count";
  59     public static final String ARG_SHOW_PARAMS = "show-params";
  60     public static final boolean DEFAULT_SHOW_PARAMS = true;
  61     private int mColumnCount = DEFAULT_COLUMN_COUNT;
  62     private OnCurrencySelectedListener mListener;
  63     private CurrencySelectorModel model;
  64     private boolean deferredShowPositionAndPadding;
  65
  66     /**
  67      * Mandatory empty constructor for the fragment manager to instantiate the
  68      * fragment (e.g. upon screen orientation changes).
  69      */
  70     public CurrencySelectorFragment() {
  71     }
  72     @SuppressWarnings("unused")
  73     public static CurrencySelectorFragment newInstance() {
  74         return newInstance(DEFAULT_COLUMN_COUNT, DEFAULT_SHOW_PARAMS);
  75     }
  76     public static CurrencySelectorFragment newInstance(int columnCount, boolean showParams) {
  77         CurrencySelectorFragment fragment = new CurrencySelectorFragment();
  78         Bundle args = new Bundle();
  79         args.putInt(ARG_COLUMN_COUNT, columnCount);
  80         args.putBoolean(ARG_SHOW_PARAMS, showParams);
  81         fragment.setArguments(args);
  82         return fragment;
  83     }
  84     @Override
  85     public void onCreate(Bundle savedInstanceState) {
  86         super.onCreate(savedInstanceState);
  87
  88         if (getArguments() != null) {
  89             mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT, DEFAULT_COLUMN_COUNT);
  90         }
  91     }
  92     @NonNull
  93     @Override
  94     public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
  95         Context context = Objects.requireNonNull(getContext());
  96         Dialog csd = new Dialog(context);
  97         csd.setContentView(R.layout.fragment_currency_selector_list);
  98         csd.setTitle(R.string.choose_currency_label);
  99
 100         RecyclerView recyclerView = csd.findViewById(R.id.list);
 101
 102         if (mColumnCount <= 1) {
 103             recyclerView.setLayoutManager(new LinearLayoutManager(context));
 104         }
 105         else {
 106             recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
 107         }
 108         model = new ViewModelProvider(this).get(CurrencySelectorModel.class);
 109         MobileLedgerProfile profile = Objects.requireNonNull(Data.profile.getValue());
 110
 111         model.currencies.setValue(new CopyOnWriteArrayList<>(profile.getCurrencies()));
 112         CurrencySelectorRecyclerViewAdapter adapter = new CurrencySelectorRecyclerViewAdapter();
 113         model.currencies.observe(this, list -> adapter.submitList(list));
 114
 115         recyclerView.setAdapter(adapter);
 116         adapter.setCurrencySelectedListener(this);
 117         adapter.setCurrencyLongClickListener(this);
 118
 119         final TextView tvNewCurrName = csd.findViewById(R.id.new_currency_name);
 120         final TextView tvNoCurrBtn = csd.findViewById(R.id.btn_no_currency);
 121         final TextView tvAddCurrOkBtn = csd.findViewById(R.id.btn_add_currency);
 122         final TextView tvAddCurrBtn = csd.findViewById(R.id.btn_add_new);
 123
 124         tvNewCurrName.setVisibility(View.GONE);
 125         tvAddCurrOkBtn.setVisibility(View.GONE);
 126         tvNoCurrBtn.setVisibility(View.VISIBLE);
 127         tvAddCurrBtn.setVisibility(View.VISIBLE);
 128
 129         tvAddCurrBtn.setOnClickListener(v -> {
 130             tvNewCurrName.setVisibility(View.VISIBLE);
 131             tvAddCurrOkBtn.setVisibility(View.VISIBLE);
 132
 133             tvNoCurrBtn.setVisibility(View.GONE);
 134             tvAddCurrBtn.setVisibility(View.GONE);
 135
 136             tvNewCurrName.setText(null);
 137             tvNewCurrName.requestFocus();
 138             net.ktnx.mobileledger.utils.Misc.showSoftKeyboard(this);
 139         });
 140
 141         tvAddCurrOkBtn.setOnClickListener(v -> {
 142
 143
 144             String currName = String.valueOf(tvNewCurrName.getText());
 145             if (!currName.isEmpty()) {
 146                 List<Currency> list = new ArrayList<>(model.currencies.getValue());
 147                 // FIXME hardcoded position and gap setting
 148                 list.add(new Currency(profile, String.valueOf(tvNewCurrName.getText()),
 149                         Currency.Position.after, false));
 150                 model.currencies.setValue(list);
 151             }
 152
 153             tvNewCurrName.setVisibility(View.GONE);
 154             tvAddCurrOkBtn.setVisibility(View.GONE);
 155
 156             tvNoCurrBtn.setVisibility(View.VISIBLE);
 157             tvAddCurrBtn.setVisibility(View.VISIBLE);
 158         });
 159
 160         tvNoCurrBtn.setOnClickListener(v -> {
 161             adapter.notifyCurrencySelected(null);
 162             dismiss();
 163         });
 164
 165         RadioButton rbPositionLeft = csd.findViewById(R.id.currency_position_left);
 166         RadioButton rbPositionRight = csd.findViewById(R.id.currency_position_right);
 167
 168         if (Data.currencySymbolPosition.getValue() == Currency.Position.before)
 169             rbPositionLeft.toggle();
 170         else
 171             rbPositionRight.toggle();
 172
 173         RadioGroup rgPosition = csd.findViewById(R.id.position_radio_group);
 174         rgPosition.setOnCheckedChangeListener((group, checkedId) -> {
 175             if (checkedId == R.id.currency_position_left)
 176                 Data.currencySymbolPosition.setValue(Currency.Position.before);
 177             else
 178                 Data.currencySymbolPosition.setValue(Currency.Position.after);
 179         });
 180
 181         Switch gap = csd.findViewById(R.id.currency_gap);
 182
 183         gap.setChecked(Data.currencyGap.getValue());
 184
 185         gap.setOnCheckedChangeListener((v, checked) -> {
 186             Data.currencyGap.setValue(checked);
 187         });
 188
 189         model.observePositionAndPaddingVisible(this, visible -> {
 190             csd.findViewById(R.id.params_panel)
 191                .setVisibility(visible ? View.VISIBLE : View.GONE);
 192         });
 193
 194         if ((savedInstanceState != null) ? savedInstanceState.getBoolean(ARG_SHOW_PARAMS,
 195                 DEFAULT_SHOW_PARAMS) : DEFAULT_SHOW_PARAMS)
 196             model.showPositionAndPadding();
 197         else
 198             model.hidePositionAndPadding();
 199
 200         return csd;
 201     }
 202     public void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
 203         mListener = listener;
 204     }
 205     public void resetOnCurrencySelectedListener() {
 206         mListener = null;
 207     }
 208     @Override
 209     public void onCurrencySelected(Currency item) {
 210         if (mListener != null)
 211             mListener.onCurrencySelected(item);
 212
 213         dismiss();
 214     }
 215
 216     @Override
 217     public void onCurrencyLongClick(Currency item) {
 218         ArrayList<Currency> list = new ArrayList<>(model.currencies.getValue());
 219         App.getDatabase()
 220            .execSQL("delete from currencies where id=?", new Object[]{item.getId()});
 221         list.remove(item);
 222         model.currencies.setValue(list);
 223     }
 224     public void showPositionAndPadding() {
 225         deferredShowPositionAndPadding = true;
 226     }
 227     public void hidePositionAndPadding() {
 228         deferredShowPositionAndPadding = false;
 229     }
 230 }