another major rework, transaction list is fully asynchronous

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / transaction_list / TransactionListViewModel.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
index 10aa2e9bc62630949cf9df03607463bc12d306de..f1c6df01348e000947d75fb5f314ea60014de7c4 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
@@ -17,8 +17,60 @@
 
 package net.ktnx.mobileledger.ui.transaction_list;
 
+import android.app.Activity;
 import android.arch.lifecycle.ViewModel;
+import android.os.AsyncTask;
+import android.view.View;
+import android.widget.AutoCompleteTextView;
+
+import net.ktnx.mobileledger.R;
+import net.ktnx.mobileledger.async.UpdateTransactionsTask;
+import net.ktnx.mobileledger.model.Data;
+import net.ktnx.mobileledger.model.LedgerTransaction;
+import net.ktnx.mobileledger.model.ObservableValue;
+
+import java.util.List;
 
 public class TransactionListViewModel extends ViewModel {
-    // TODO: Implement the ViewModel
+    public static ObservableValue<Boolean> updating = new ObservableValue<>();
+
+    public static void scheduleTransactionListReload(Activity act) {
+        boolean hasFilter =
+                act.findViewById(R.id.transaction_list_account_name_filter).getVisibility() ==
+                View.VISIBLE;
+        String accFilter = hasFilter ? String.valueOf(
+                ((AutoCompleteTextView) act.findViewById(R.id.transaction_filter_account_name))
+                        .getText()) : null;
+        updating.set(true);
+        AsyncTask<String, Void, List<LedgerTransaction>> task = new UTT();
+        task.execute(accFilter);
+    }
+    public static LedgerTransaction getTransaction(int position) {
+        List<LedgerTransaction> transactions = Data.transactions.get();
+        if (position >= transactions.size()) return null;
+        return transactions.get(position);
+    }
+    public static int getTransactionCount() {
+        List<LedgerTransaction> transactions = Data.transactions.get();
+        if (transactions == null) return 0;
+        return transactions.size();
+    }
+    private static class UTT extends UpdateTransactionsTask {
+        @Override
+        protected void onPostExecute(List<LedgerTransaction> list) {
+            super.onPostExecute(list);
+            updating.set(false);
+            if (list != null) Data.transactions.set(list);
+        }
+        @Override
+        protected void onCancelled(List<LedgerTransaction> ledgerTransactions) {
+            super.onCancelled(ledgerTransactions);
+            updating.set(false);
+        }
+        @Override
+        protected void onCancelled() {
+            super.onCancelled();
+            updating.set(false);
+        }
+    }
 }