rework account list management to be fully asynchronous

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

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java
index f8b870723ac629c7478a165b75f4f778d3d58845..d251cc8dc79962110cf42b9f72f62c481c9a6e85 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java
@@ -31,7 +31,10 @@ import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.AsyncListDiffer;
+import androidx.recyclerview.widget.DiffUtil;
 import androidx.recyclerview.widget.RecyclerView;
 
 import net.ktnx.mobileledger.App;
@@ -39,6 +42,7 @@ import net.ktnx.mobileledger.R;
 import net.ktnx.mobileledger.model.Data;
 import net.ktnx.mobileledger.model.LedgerTransaction;
 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
+import net.ktnx.mobileledger.model.MobileLedgerProfile;
 import net.ktnx.mobileledger.model.TransactionListItem;
 import net.ktnx.mobileledger.utils.Colors;
 import net.ktnx.mobileledger.utils.Globals;
@@ -47,9 +51,53 @@ import net.ktnx.mobileledger.utils.SimpleDate;
 
 import java.text.DateFormat;
 import java.util.GregorianCalendar;
+import java.util.Locale;
 import java.util.TimeZone;
 
 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
+    private MobileLedgerProfile profile;
+    private AsyncListDiffer<TransactionListItem> listDiffer;
+    public TransactionListAdapter() {
+        super();
+        listDiffer = new AsyncListDiffer<>(this, new DiffUtil.ItemCallback<TransactionListItem>() {
+            @Override
+            public boolean areItemsTheSame(@NonNull TransactionListItem oldItem,
+                                           @NonNull TransactionListItem newItem) {
+                if (oldItem.getType() != newItem.getType())
+                    return false;
+                switch (oldItem.getType()) {
+                    case DELIMITER:
+                        return (oldItem.getDate()
+                                       .equals(newItem.getDate()));
+                    case TRANSACTION:
+                        return oldItem.getTransaction()
+                                      .getId() == newItem.getTransaction()
+                                                         .getId();
+                    default:
+                        throw new IllegalStateException(
+                                String.format(Locale.US, "Unexpected transaction item type %s",
+                                        oldItem.getType()));
+                }
+            }
+            @Override
+            public boolean areContentsTheSame(@NonNull TransactionListItem oldItem,
+                                              @NonNull TransactionListItem newItem) {
+                switch (oldItem.getType()) {
+                    case DELIMITER:
+                        // Delimiters items are "same" for same dates and the contents are the date
+                        return true;
+                    case TRANSACTION:
+                        return oldItem.getTransaction()
+                                      .equals(newItem.getTransaction());
+                    default:
+                        throw new IllegalStateException(
+                                String.format(Locale.US, "Unexpected transaction item type %s",
+                                        oldItem.getType()));
+
+                }
+            }
+        });
+    }
     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
 
@@ -92,6 +140,7 @@ public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowH
                 if (item.isMonthShown()) {
                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
                     cal.setTime(date.toDate());
+                    App.prepareMonthNames();
                     holder.tvDelimiterMonth.setText(
                             Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
@@ -185,6 +234,7 @@ public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowH
                         // the accounts remain with their default text (set in the layout resource)
                         holder.tableAccounts.addView(row);
                     }
+                    TextView dummyText = row.findViewById(R.id.dummy_text);
                     TextView accName = row.findViewById(R.id.transaction_list_acc_row_acc_name);
                     TextView accComment =
                             row.findViewById(R.id.transaction_list_acc_row_acc_comment);
@@ -199,8 +249,8 @@ public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowH
                     if ((boldAccountName != null) && acc.getAccountName()
                                                         .startsWith(boldAccountName))
                     {
-                        accName.setTextColor(Colors.accent);
-                        accAmount.setTextColor(Colors.accent);
+                        accName.setTextColor(Colors.secondary);
+                        accAmount.setTextColor(Colors.secondary);
 
                         SpannableString ss = new SpannableString(acc.getAccountName());
                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
@@ -208,8 +258,10 @@ public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowH
                         accName.setText(ss);
                     }
                     else {
-                        accName.setTextColor(Colors.defaultTextColor);
-                        accAmount.setTextColor(Colors.defaultTextColor);
+                        @ColorInt int textColor = dummyText.getTextColors()
+                                                           .getDefaultColor();
+                        accName.setTextColor(textColor);
+                        accAmount.setTextColor(textColor);
                         accName.setText(acc.getAccountName());
                     }