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.TextView;
  27
  28 import androidx.annotation.NonNull;
  29 import androidx.annotation.Nullable;
  30 import androidx.appcompat.app.AppCompatDialogFragment;
  31 import androidx.lifecycle.ViewModelProvider;
  32 import androidx.recyclerview.widget.GridLayoutManager;
  33 import androidx.recyclerview.widget.LinearLayoutManager;
  34 import androidx.recyclerview.widget.RecyclerView;
  35
  36 import com.google.android.material.switchmaterial.SwitchMaterial;
  37
  38 import net.ktnx.mobileledger.App;
  39 import net.ktnx.mobileledger.R;
  40 import net.ktnx.mobileledger.model.Currency;
  41 import net.ktnx.mobileledger.model.Data;
  42 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  43
  44 import java.util.ArrayList;
  45 import java.util.List;
  46 import java.util.Objects;
  47 import java.util.concurrent.CopyOnWriteArrayList;
  48
  49 /**
  50  * A fragment representing a list of Items.
  51  * <p/>
  52  * Activities containing this fragment MUST implement the {@link OnCurrencySelectedListener}
  53  * interface.
  54  */
  55 public class CurrencySelectorFragment extends AppCompatDialogFragment
  56         implements OnCurrencySelectedListener, OnCurrencyLongClickListener {
  57
  58     public static final int DEFAULT_COLUMN_COUNT = 2;
  59     public static final String ARG_COLUMN_COUNT = "column-count";
  60     public static final String ARG_SHOW_PARAMS = "show-params";
  61     public static final boolean DEFAULT_SHOW_PARAMS = true;
  62     private int mColumnCount = DEFAULT_COLUMN_COUNT;
  63     private CurrencySelectorModel model;
  64     private boolean deferredShowPositionAndPadding;
  65     private OnCurrencySelectedListener onCurrencySelectedListener;
  66
  67     /**
  68      * Mandatory empty constructor for the fragment manager to instantiate the
  69      * fragment (e.g. upon screen orientation changes).
  70      */
  71     public CurrencySelectorFragment() {
  72     }
  73     @SuppressWarnings("unused")
  74     public static CurrencySelectorFragment newInstance() {
  75         return newInstance(DEFAULT_COLUMN_COUNT, DEFAULT_SHOW_PARAMS);
  76     }
  77     public static CurrencySelectorFragment newInstance(int columnCount, boolean showParams) {
  78         CurrencySelectorFragment fragment = new CurrencySelectorFragment();
  79         Bundle args = new Bundle();
  80         args.putInt(ARG_COLUMN_COUNT, columnCount);
  81         args.putBoolean(ARG_SHOW_PARAMS, showParams);
  82         fragment.setArguments(args);
  83         return fragment;
  84     }
  85     @Override
  86     public void onCreate(Bundle savedInstanceState) {
  87         super.onCreate(savedInstanceState);
  88
  89         if (getArguments() != null) {
  90             mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT, DEFAULT_COLUMN_COUNT);
  91         }
  92     }
  93     @NonNull
  94     @Override
  95     public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
  96         Context context = requireContext();
  97         Dialog csd = new Dialog(context);
  98         csd.setContentView(R.layout.fragment_currency_selector_list);
  99         csd.setTitle(R.string.choose_currency_label);
 100
 101         RecyclerView recyclerView = csd.findViewById(R.id.list);
 102
 103         if (mColumnCount <= 1) {
 104             recyclerView.setLayoutManager(new LinearLayoutManager(context));
 105         }
 106         else {
 107             recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
 108         }
 109         model = new ViewModelProvider(this).get(CurrencySelectorModel.class);
 110         if (onCurrencySelectedListener != null)
 111             model.setOnCurrencySelectedListener(onCurrencySelectedListener);
 112         MobileLedgerProfile profile = Objects.requireNonNull(Data.getProfile());
 113
 114         model.currencies.setValue(new CopyOnWriteArrayList<>(profile.getCurrencies()));
 115         CurrencySelectorRecyclerViewAdapter adapter = new CurrencySelectorRecyclerViewAdapter();
 116         model.currencies.observe(this, adapter::submitList);
 117
 118         recyclerView.setAdapter(adapter);
 119         adapter.setCurrencySelectedListener(this);
 120         adapter.setCurrencyLongClickListener(this);
 121
 122         final TextView tvNewCurrName = csd.findViewById(R.id.new_currency_name);
 123         final TextView tvNoCurrBtn = csd.findViewById(R.id.btn_no_currency);
 124         final TextView tvAddCurrOkBtn = csd.findViewById(R.id.btn_add_currency);
 125         final TextView tvAddCurrBtn = csd.findViewById(R.id.btn_add_new);
 126
 127         tvNewCurrName.setVisibility(View.GONE);
 128         tvAddCurrOkBtn.setVisibility(View.GONE);
 129         tvNoCurrBtn.setVisibility(View.VISIBLE);
 130         tvAddCurrBtn.setVisibility(View.VISIBLE);
 131
 132         tvAddCurrBtn.setOnClickListener(v -> {
 133             tvNewCurrName.setVisibility(View.VISIBLE);
 134             tvAddCurrOkBtn.setVisibility(View.VISIBLE);
 135
 136             tvNoCurrBtn.setVisibility(View.GONE);
 137             tvAddCurrBtn.setVisibility(View.GONE);
 138
 139             tvNewCurrName.setText(null);
 140             tvNewCurrName.requestFocus();
 141             net.ktnx.mobileledger.utils.Misc.showSoftKeyboard(this);
 142         });
 143
 144         tvAddCurrOkBtn.setOnClickListener(v -> {
 145
 146
 147             String currName = String.valueOf(tvNewCurrName.getText());
 148             if (!currName.isEmpty()) {
 149                 List<Currency> list = new ArrayList<>(model.currencies.getValue());
 150                 // FIXME hardcoded position and gap setting
 151                 list.add(new Currency(profile, String.valueOf(tvNewCurrName.getText()),
 152                         Currency.Position.after, false));
 153                 model.currencies.setValue(list);
 154             }
 155
 156             tvNewCurrName.setVisibility(View.GONE);
 157             tvAddCurrOkBtn.setVisibility(View.GONE);
 158
 159             tvNoCurrBtn.setVisibility(View.VISIBLE);
 160             tvAddCurrBtn.setVisibility(View.VISIBLE);
 161         });
 162
 163         tvNoCurrBtn.setOnClickListener(v -> {
 164             adapter.notifyCurrencySelected(null);
 165             dismiss();
 166         });
 167
 168         RadioButton rbPositionLeft = csd.findViewById(R.id.currency_position_left);
 169         RadioButton rbPositionRight = csd.findViewById(R.id.currency_position_right);
 170
 171         if (Data.currencySymbolPosition.getValue() == Currency.Position.before)
 172             rbPositionLeft.toggle();
 173         else
 174             rbPositionRight.toggle();
 175
 176         RadioGroup rgPosition = csd.findViewById(R.id.position_radio_group);
 177         rgPosition.setOnCheckedChangeListener((group, checkedId) -> {
 178             if (checkedId == R.id.currency_position_left)
 179                 Data.currencySymbolPosition.setValue(Currency.Position.before);
 180             else
 181                 Data.currencySymbolPosition.setValue(Currency.Position.after);
 182         });
 183
 184         SwitchMaterial gap = csd.findViewById(R.id.currency_gap);
 185
 186         gap.setChecked(Data.currencyGap.getValue());
 187
 188         gap.setOnCheckedChangeListener((v, checked) -> Data.currencyGap.setValue(checked));
 189
 190         model.observePositionAndPaddingVisible(this, visible -> csd.findViewById(R.id.params_panel)
 191                                                                    .setVisibility(
 192                                                                            visible ? View.VISIBLE
 193                                                                                    : View.GONE));
 194
 195         if ((savedInstanceState != null) ? savedInstanceState.getBoolean(ARG_SHOW_PARAMS,
 196                 DEFAULT_SHOW_PARAMS) : DEFAULT_SHOW_PARAMS)
 197             model.showPositionAndPadding();
 198         else
 199             model.hidePositionAndPadding();
 200
 201         return csd;
 202     }
 203     public void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
 204         onCurrencySelectedListener = listener;
 205
 206         if (model != null)
 207             model.setOnCurrencySelectedListener(listener);
 208     }
 209     public void resetOnCurrencySelectedListener() {
 210         model.resetOnCurrencySelectedListener();
 211     }
 212     @Override
 213     public void onCurrencySelected(Currency item) {
 214         model.triggerOnCurrencySelectedListener(item);
 215
 216         dismiss();
 217     }
 218
 219     @Override
 220     public void onCurrencyLongClick(Currency item) {
 221         ArrayList<Currency> list = new ArrayList<>(model.currencies.getValue());
 222         App.getDatabase()
 223            .execSQL("delete from currencies where id=?", new Object[]{item.getId()});
 224         list.remove(item);
 225         model.currencies.setValue(list);
 226     }
 227     public void showPositionAndPadding() {
 228         deferredShowPositionAndPadding = true;
 229     }
 230     public void hidePositionAndPadding() {
 231         deferredShowPositionAndPadding = false;
 232     }
 233 }