app/src/main/java/net/ktnx/mobileledger/ui/CurrencySelectorFragment.java

   1 /*
   2  * Copyright © 2021 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.R;
  39 import net.ktnx.mobileledger.dao.CurrencyDAO;
  40 import net.ktnx.mobileledger.db.DB;
  41 import net.ktnx.mobileledger.db.Profile;
  42 import net.ktnx.mobileledger.model.Currency;
  43 import net.ktnx.mobileledger.model.Data;
  44
  45 import java.util.ArrayList;
  46 import java.util.List;
  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 CurrencySelectorModel model;
  63     private boolean deferredShowPositionAndPadding;
  64     private OnCurrencySelectedListener onCurrencySelectedListener;
  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 = requireContext();
  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         if (onCurrencySelectedListener != null)
 110             model.setOnCurrencySelectedListener(onCurrencySelectedListener);
 111         Profile profile = Data.getProfile();
 112
 113         CurrencySelectorRecyclerViewAdapter adapter = new CurrencySelectorRecyclerViewAdapter();
 114         DB.get()
 115           .getCurrencyDAO()
 116           .getAll()
 117           .observe(this, list -> {
 118               List<String> strings = new ArrayList<>();
 119               for (net.ktnx.mobileledger.db.Currency c : list) {
 120                   strings.add(c.getName());
 121               }
 122               adapter.submitList(strings);
 123           });
 124
 125         recyclerView.setAdapter(adapter);
 126         adapter.setCurrencySelectedListener(this);
 127         adapter.setCurrencyLongClickListener(this);
 128
 129         final TextView tvNewCurrName = csd.findViewById(R.id.new_currency_name);
 130         final TextView tvNoCurrBtn = csd.findViewById(R.id.btn_no_currency);
 131         final TextView tvAddCurrOkBtn = csd.findViewById(R.id.btn_add_currency);
 132         final TextView tvAddCurrBtn = csd.findViewById(R.id.btn_add_new);
 133         final SwitchMaterial gap = csd.findViewById(R.id.currency_gap);
 134         final RadioGroup rgPosition = csd.findViewById(R.id.position_radio_group);
 135
 136         tvNewCurrName.setVisibility(View.GONE);
 137         tvAddCurrOkBtn.setVisibility(View.GONE);
 138         tvNoCurrBtn.setVisibility(View.VISIBLE);
 139         tvAddCurrBtn.setVisibility(View.VISIBLE);
 140
 141         tvAddCurrBtn.setOnClickListener(v -> {
 142             tvNewCurrName.setVisibility(View.VISIBLE);
 143             tvAddCurrOkBtn.setVisibility(View.VISIBLE);
 144
 145             tvNoCurrBtn.setVisibility(View.GONE);
 146             tvAddCurrBtn.setVisibility(View.GONE);
 147
 148             tvNewCurrName.setText(null);
 149             tvNewCurrName.requestFocus();
 150             net.ktnx.mobileledger.utils.Misc.showSoftKeyboard(this);
 151         });
 152
 153         tvAddCurrOkBtn.setOnClickListener(v -> {
 154             String currName = String.valueOf(tvNewCurrName.getText());
 155             if (!currName.isEmpty()) {
 156                 DB.get()
 157                   .getCurrencyDAO()
 158                   .insert(new net.ktnx.mobileledger.db.Currency(0,
 159                           String.valueOf(tvNewCurrName.getText()),
 160                           (rgPosition.getCheckedRadioButtonId() == R.id.currency_position_left)
 161                           ? "before" : "after", gap.isChecked()));
 162             }
 163
 164             tvNewCurrName.setVisibility(View.GONE);
 165             tvAddCurrOkBtn.setVisibility(View.GONE);
 166
 167             tvNoCurrBtn.setVisibility(View.VISIBLE);
 168             tvAddCurrBtn.setVisibility(View.VISIBLE);
 169         });
 170
 171         tvNoCurrBtn.setOnClickListener(v -> {
 172             adapter.notifyCurrencySelected(null);
 173             dismiss();
 174         });
 175
 176         RadioButton rbPositionLeft = csd.findViewById(R.id.currency_position_left);
 177         RadioButton rbPositionRight = csd.findViewById(R.id.currency_position_right);
 178
 179         if (Data.currencySymbolPosition.getValue() == Currency.Position.before)
 180             rbPositionLeft.toggle();
 181         else
 182             rbPositionRight.toggle();
 183
 184         rgPosition.setOnCheckedChangeListener((group, checkedId) -> {
 185             if (checkedId == R.id.currency_position_left)
 186                 Data.currencySymbolPosition.setValue(Currency.Position.before);
 187             else
 188                 Data.currencySymbolPosition.setValue(Currency.Position.after);
 189         });
 190
 191         gap.setChecked(Data.currencyGap.getValue());
 192
 193         gap.setOnCheckedChangeListener((v, checked) -> Data.currencyGap.setValue(checked));
 194
 195         model.observePositionAndPaddingVisible(this, visible -> csd.findViewById(R.id.params_panel)
 196                                                                    .setVisibility(
 197                                                                            visible ? View.VISIBLE
 198                                                                                    : View.GONE));
 199
 200         final boolean showParams;
 201         if (getArguments() == null)
 202             showParams = DEFAULT_SHOW_PARAMS;
 203         else
 204             showParams = getArguments().getBoolean(ARG_SHOW_PARAMS, DEFAULT_SHOW_PARAMS);
 205
 206         if (showParams)
 207             model.showPositionAndPadding();
 208         else
 209             model.hidePositionAndPadding();
 210
 211         return csd;
 212     }
 213     public void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
 214         onCurrencySelectedListener = listener;
 215
 216         if (model != null)
 217             model.setOnCurrencySelectedListener(listener);
 218     }
 219     public void resetOnCurrencySelectedListener() {
 220         model.resetOnCurrencySelectedListener();
 221     }
 222     @Override
 223     public void onCurrencySelected(String item) {
 224         model.triggerOnCurrencySelectedListener(item);
 225
 226         dismiss();
 227     }
 228
 229     @Override
 230     public void onCurrencyLongClick(String item) {
 231         CurrencyDAO dao = DB.get()
 232                             .getCurrencyDAO();
 233         dao.getByName(item)
 234            .observe(this, dao::deleteSync);
 235     }
 236     public void showPositionAndPadding() {
 237         deferredShowPositionAndPadding = true;
 238     }
 239     public void hidePositionAndPadding() {
 240         deferredShowPositionAndPadding = false;
 241     }
 242 }