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.
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.transaction_list;
20 import android.os.AsyncTask;
22 import net.ktnx.mobileledger.async.UpdateTransactionsTask;
23 import net.ktnx.mobileledger.model.Data;
24 import net.ktnx.mobileledger.model.TransactionListItem;
25 import net.ktnx.mobileledger.utils.ObservableValue;
27 import java.util.List;
29 import androidx.lifecycle.ViewModel;
31 public class TransactionListViewModel extends ViewModel {
32 public static ObservableValue<Boolean> updating = new ObservableValue<>();
33 public static ObservableValue<String> updateError = new ObservableValue<>();
35 public static void scheduleTransactionListReload() {
36 if (Data.profile.get() == null) return;
38 String filter = TransactionListFragment.accountFilter.get();
39 AsyncTask<String, Void, String> task = new UTT();
40 task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, filter);
42 public static TransactionListItem getTransactionListItem(int position) {
43 List<TransactionListItem> transactions = Data.transactions.get();
44 if (transactions == null) return null;
45 if (position >= transactions.size() + 1) return null;
46 if (position == transactions.size()) return new TransactionListItem();
47 return transactions.get(position);
49 public static int getTransactionCount() {
50 List<TransactionListItem> transactions = Data.transactions.get();
51 if (transactions == null) return 0;
52 return transactions.size();
54 private static class UTT extends UpdateTransactionsTask {
56 protected void onPostExecute(String error) {
57 super.onPostExecute(error);
58 if (error != null) updateError.set(error);