app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java

   1 /*
   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.
   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.transaction_list;
  19
  20 import android.app.Activity;
  21 import android.content.Context;
  22 import android.database.sqlite.SQLiteDatabase;
  23 import android.graphics.Typeface;
  24 import android.os.AsyncTask;
  25 import android.text.Spannable;
  26 import android.text.SpannableString;
  27 import android.text.style.StyleSpan;
  28 import android.view.LayoutInflater;
  29 import android.view.View;
  30 import android.view.ViewGroup;
  31 import android.widget.LinearLayout;
  32 import android.widget.TextView;
  33
  34 import androidx.annotation.NonNull;
  35 import androidx.recyclerview.widget.RecyclerView;
  36
  37 import net.ktnx.mobileledger.App;
  38 import net.ktnx.mobileledger.R;
  39 import net.ktnx.mobileledger.model.Data;
  40 import net.ktnx.mobileledger.model.LedgerTransaction;
  41 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  42 import net.ktnx.mobileledger.model.TransactionListItem;
  43 import net.ktnx.mobileledger.utils.Colors;
  44 import net.ktnx.mobileledger.utils.Globals;
  45 import net.ktnx.mobileledger.utils.Misc;
  46 import net.ktnx.mobileledger.utils.SimpleDate;
  47
  48 import java.text.DateFormat;
  49 import java.util.GregorianCalendar;
  50 import java.util.TimeZone;
  51
  52 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  53     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  54         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  55
  56         // in a race when transaction value is reduced, but the model hasn't been notified yet
  57         // the view will disappear when the notifications reaches the model, so by simply omitting
  58         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  59         // a bit longer
  60         if (item == null)
  61             return;
  62
  63         switch (item.getType()) {
  64             case TRANSACTION:
  65                 holder.vTransaction.setVisibility(View.VISIBLE);
  66                 holder.vDelimiter.setVisibility(View.GONE);
  67                 LedgerTransaction tr = item.getTransaction();
  68
  69                 //        debug("transactions", String.format("Filling position %d with %d
  70                 //        accounts", position,
  71                 //                tr.getAccounts().size()));
  72
  73                 TransactionLoader loader = new TransactionLoader();
  74                 loader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
  75                         new TransactionLoaderParams(tr, holder, position,
  76                                 Data.accountFilter.getValue(), item.isOdd()));
  77
  78                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  79                 // when a view that was previously holding a delimiter is re-purposed
  80                 // occasionally it stays too short (not high enough)
  81                 holder.vTransaction.measure(
  82                         View.MeasureSpec.makeMeasureSpec(holder.itemView.getWidth(),
  83                                 View.MeasureSpec.EXACTLY),
  84                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  85                 break;
  86             case DELIMITER:
  87                 SimpleDate date = item.getDate();
  88                 holder.vTransaction.setVisibility(View.GONE);
  89                 holder.vDelimiter.setVisibility(View.VISIBLE);
  90                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance()
  91                                                          .format(date.toDate()));
  92                 if (item.isMonthShown()) {
  93                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  94                     cal.setTime(date.toDate());
  95                     holder.tvDelimiterMonth.setText(
  96                             Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  97                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  98                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
  99                     //                .dashed_border_8dp);
 100                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
 101                 }
 102                 else {
 103                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 104                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
 105                     //                .dashed_border_1dp);
 106                     holder.vDelimiterThick.setVisibility(View.GONE);
 107                 }
 108                 break;
 109         }
 110     }
 111
 112     @NonNull
 113     @Override
 114     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 115 //        debug("perf", "onCreateViewHolder called");
 116         View row = LayoutInflater.from(parent.getContext())
 117                                  .inflate(R.layout.transaction_list_row, parent, false);
 118         return new TransactionRowHolder(row);
 119     }
 120
 121     @Override
 122     public int getItemCount() {
 123         return Data.transactions.size();
 124     }
 125     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 126
 127     private static class TransactionLoader
 128             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 129         @Override
 130         protected Void doInBackground(TransactionLoaderParams... p) {
 131             LedgerTransaction tr = p[0].transaction;
 132             boolean odd = p[0].odd;
 133
 134             SQLiteDatabase db = App.getDatabase();
 135             tr.loadData(db);
 136
 137             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 138
 139             int rowIndex = 0;
 140             // FIXME ConcurrentModificationException in ArrayList$ltr.next (ArrayList.java:831)
 141             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 142 //                debug(c.getAccountName(), acc.getAmount()));
 143                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 144                         p[0].boldAccountName));
 145             }
 146
 147             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 148
 149             return null;
 150         }
 151         @Override
 152         protected void onProgressUpdate(TransactionLoaderStep... values) {
 153             super.onProgressUpdate(values);
 154             TransactionLoaderStep step = values[0];
 155             TransactionRowHolder holder = step.getHolder();
 156
 157             switch (step.getStep()) {
 158                 case HEAD:
 159                     holder.tvDescription.setText(step.getTransaction()
 160                                                      .getDescription());
 161                     String trComment = Misc.emptyIsNull(step.getTransaction()
 162                                                             .getComment());
 163                     if (trComment == null)
 164                         holder.tvComment.setVisibility(View.GONE);
 165                     else {
 166                         holder.tvComment.setText(trComment);
 167                         holder.tvComment.setVisibility(View.VISIBLE);
 168                     }
 169
 170 //                    if (step.isOdd())
 171 //                        holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 172 //                    else
 173 //                        holder.row.setBackgroundColor(Colors.tableRowLightBG);
 174
 175                     break;
 176                 case ACCOUNTS:
 177                     int rowIndex = step.getAccountPosition();
 178                     Context ctx = holder.row.getContext();
 179                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 180                     if (row == null) {
 181                         LayoutInflater inflater = ((Activity) ctx).getLayoutInflater();
 182                         row = (LinearLayout) inflater.inflate(
 183                                 R.layout.transaction_list_row_accounts_table_row, null);
 184                         // if the rootView above is given (and the line below is spared)
 185                         // the accounts remain with their default text (set in the layout resource)
 186                         holder.tableAccounts.addView(row);
 187                     }
 188                     TextView accName = row.findViewById(R.id.transaction_list_acc_row_acc_name);
 189                     TextView accComment =
 190                             row.findViewById(R.id.transaction_list_acc_row_acc_comment);
 191                     TextView accAmount = row.findViewById(R.id.transaction_list_acc_row_acc_amount);
 192                     LedgerTransactionAccount acc = step.getAccount();
 193
 194
 195 //                    debug("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 196 //                            acc.getAccountName(), acc.getAmount()));
 197
 198                     String boldAccountName = step.getBoldAccountName();
 199                     if ((boldAccountName != null) && acc.getAccountName()
 200                                                         .startsWith(boldAccountName))
 201                     {
 202                         accName.setTextColor(Colors.accent);
 203                         accAmount.setTextColor(Colors.accent);
 204
 205                         SpannableString ss = new SpannableString(acc.getAccountName());
 206                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 207                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 208                         accName.setText(ss);
 209                     }
 210                     else {
 211                         accName.setTextColor(Colors.defaultTextColor);
 212                         accAmount.setTextColor(Colors.defaultTextColor);
 213                         accName.setText(acc.getAccountName());
 214                     }
 215
 216                     String comment = acc.getComment();
 217                     if (comment != null && !comment.isEmpty()) {
 218                         accComment.setText(comment);
 219                         accComment.setVisibility(View.VISIBLE);
 220                     }
 221                     else {
 222                         accComment.setVisibility(View.GONE);
 223                     }
 224                     accAmount.setText(acc.toString());
 225
 226                     break;
 227                 case DONE:
 228                     int accCount = step.getAccountCount();
 229                     if (holder.tableAccounts.getChildCount() > accCount) {
 230                         holder.tableAccounts.removeViews(accCount,
 231                                 holder.tableAccounts.getChildCount() - accCount);
 232                     }
 233
 234 //                    debug("transactions",
 235 //                            String.format("Position %d fill done", step.getPosition()));
 236             }
 237         }
 238     }
 239
 240     private class TransactionLoaderParams {
 241         LedgerTransaction transaction;
 242         TransactionRowHolder holder;
 243         int position;
 244         String boldAccountName;
 245         boolean odd;
 246         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 247                                 int position, String boldAccountName, boolean odd) {
 248             this.transaction = transaction;
 249             this.holder = holder;
 250             this.position = position;
 251             this.boldAccountName = boldAccountName;
 252             this.odd = odd;
 253         }
 254     }
 255 }