]> git.ktnx.net Git - mobile-ledger.git/blob - app/src/main/java/net/ktnx/mobileledger/ui/CurrencySelectorFragment.java
fix crash when auto-balancing multi currency transaction
[mobile-ledger.git] / 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 }