2 * Copyright © 2020 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.
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.
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/>.
18 package net.ktnx.mobileledger.ui;
20 import androidx.lifecycle.LifecycleOwner;
21 import androidx.lifecycle.MutableLiveData;
22 import androidx.lifecycle.Observer;
23 import androidx.lifecycle.ViewModel;
25 import net.ktnx.mobileledger.model.Currency;
27 import java.util.ArrayList;
28 import java.util.List;
30 public class CurrencySelectorModel extends ViewModel {
31 public final MutableLiveData<List<Currency>> currencies;
32 private final MutableLiveData<Boolean> positionAndPaddingVisible = new MutableLiveData<>(true);
33 private OnCurrencySelectedListener selectionListener;
34 public CurrencySelectorModel() {
35 this.currencies = new MutableLiveData<>(new ArrayList<>());
37 public void showPositionAndPadding() {
38 positionAndPaddingVisible.postValue(true);
40 public void hidePositionAndPadding() {
41 positionAndPaddingVisible.postValue(false);
43 public void observePositionAndPaddingVisible(LifecycleOwner activity,
44 Observer<Boolean> observer) {
45 positionAndPaddingVisible.observe(activity, observer);
47 void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
48 selectionListener = listener;
50 void resetOnCurrencySelectedListener() {
51 selectionListener = null;
53 void triggerOnCurrencySelectedListener(Currency c) {
54 if (selectionListener != null)
55 selectionListener.onCurrencySelected(c);