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

   1 /*
   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.
   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.content.Context;
  21 import android.database.sqlite.SQLiteDatabase;
  22 import android.graphics.Typeface;
  23 import android.os.AsyncTask;
  24 import android.text.Spannable;
  25 import android.text.SpannableString;
  26 import android.text.style.StyleSpan;
  27 import android.view.Gravity;
  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.appcompat.widget.AppCompatTextView;
  36 import androidx.recyclerview.widget.RecyclerView;
  37
  38 import net.ktnx.mobileledger.App;
  39 import net.ktnx.mobileledger.R;
  40 import net.ktnx.mobileledger.model.Data;
  41 import net.ktnx.mobileledger.model.LedgerTransaction;
  42 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  43 import net.ktnx.mobileledger.model.TransactionListItem;
  44 import net.ktnx.mobileledger.utils.Colors;
  45 import net.ktnx.mobileledger.utils.Globals;
  46
  47 import java.text.DateFormat;
  48 import java.util.Date;
  49 import java.util.GregorianCalendar;
  50 import java.util.TimeZone;
  51
  52 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  53
  54 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  55     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  56         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  57
  58         // in a race when transaction value is reduced, but the model hasn't been notified yet
  59         // the view will disappear when the notifications reaches the model, so by simply omitting
  60         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  61         // a bit longer
  62         if (item == null) return;
  63
  64         switch (item.getType()) {
  65             case TRANSACTION:
  66                 holder.vTransaction.setVisibility(View.VISIBLE);
  67                 holder.vDelimiter.setVisibility(View.GONE);
  68                 LedgerTransaction tr = item.getTransaction();
  69
  70                 //        debug("transactions", String.format("Filling position %d with %d 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, Data.accountFilter.getValue(),
  76                                 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(View.MeasureSpec
  82                                 .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  83                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  84                 break;
  85             case DELIMITER:
  86                 Date date = item.getDate();
  87                 holder.vTransaction.setVisibility(View.GONE);
  88                 holder.vDelimiter.setVisibility(View.VISIBLE);
  89                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  90                 if (item.isMonthShown()) {
  91                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  92                     cal.setTime(date);
  93                     holder.tvDelimiterMonth
  94                             .setText(Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  95                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  96                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_8dp);
  97                     holder.vDelimiterLine.setVisibility(View.GONE);
  98                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
  99                 }
 100                 else {
 101                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 102                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_1dp);
 103                     holder.vDelimiterLine.setVisibility(View.VISIBLE);
 104                     holder.vDelimiterThick.setVisibility(View.GONE);
 105                 }
 106                 break;
 107         }
 108     }
 109
 110     @NonNull
 111     @Override
 112     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 113 //        debug("perf", "onCreateViewHolder called");
 114         View row = LayoutInflater.from(parent.getContext())
 115                 .inflate(R.layout.transaction_list_row, parent, false);
 116         return new TransactionRowHolder(row);
 117     }
 118
 119     @Override
 120     public int getItemCount() {
 121         return Data.transactions.size();
 122     }
 123     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 124     private static class TransactionLoader
 125             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 126         @Override
 127         protected Void doInBackground(TransactionLoaderParams... p) {
 128             LedgerTransaction tr = p[0].transaction;
 129             boolean odd = p[0].odd;
 130
 131             SQLiteDatabase db = App.getDatabase();
 132             tr.loadData(db);
 133
 134             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 135
 136             int rowIndex = 0;
 137             // FIXME ConcurrentModificationException in ArrayList$ltr.next (ArrayList.java:831)
 138             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 139 //                debug(c.getAccountName(), acc.getAmount()));
 140                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 141                         p[0].boldAccountName));
 142             }
 143
 144             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 145
 146             return null;
 147         }
 148         @Override
 149         protected void onProgressUpdate(TransactionLoaderStep... values) {
 150             super.onProgressUpdate(values);
 151             TransactionLoaderStep step = values[0];
 152             TransactionRowHolder holder = step.getHolder();
 153
 154             switch (step.getStep()) {
 155                 case HEAD:
 156                     holder.tvDescription.setText(step.getTransaction().getDescription());
 157
 158                     if (step.isOdd()) holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 159                     else holder.row.setBackgroundColor(Colors.tableRowLightBG);
 160
 161                     break;
 162                 case ACCOUNTS:
 163                     int rowIndex = step.getAccountPosition();
 164                     Context ctx = holder.row.getContext();
 165                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 166                     if (row == null) {
 167                         LayoutInflater inflater = ((Activity) ctx).getLayoutInflater();
 168                         row = (LinearLayout) inflater.inflate(
 169                                 R.layout.transaction_list_row_accounts_table_row,
 170                                 holder.tableAccounts);
 171                     }
 172                     TextView accName = row.findViewById(R.id.transaction_list_acc_row_acc_name);
 173                     TextView accComment =
 174                             row.findViewById(R.id.transaction_list_acc_row_acc_comment);
 175                     TextView accAmount = row.findViewById(R.id.transaction_list_acc_row_acc_amount);
 176                     LedgerTransactionAccount acc = step.getAccount();
 177
 178
 179 //                    debug("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 180 //                            acc.getAccountName(), acc.getAmount()));
 181
 182                     String boldAccountName = step.getBoldAccountName();
 183                     if ((boldAccountName != null) &&
 184                         acc.getAccountName().startsWith(boldAccountName))
 185                     {
 186                         accName.setTextColor(Colors.accent);
 187                         accAmount.setTextColor(Colors.accent);
 188
 189                         SpannableString ss = new SpannableString(acc.getAccountName());
 190                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 191                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 192                         accName.setText(ss);
 193                     }
 194                     else {
 195                         accName.setTextColor(Colors.defaultTextColor);
 196                         accAmount.setTextColor(Colors.defaultTextColor);
 197                         accName.setText(acc.getAccountName());
 198                     }
 199
 200                     String comment = acc.getComment();
 201                     if (comment != null && !comment.isEmpty()) {
 202                         accComment.setText(comment);
 203                         accComment.setVisibility(View.VISIBLE);
 204                     }
 205                     else {
 206                         accComment.setVisibility(View.GONE);
 207                     }
 208                     accAmount.setText(acc.toString());
 209
 210                     break;
 211                 case DONE:
 212                     int accCount = step.getAccountCount();
 213                     if (holder.tableAccounts.getChildCount() > accCount) {
 214                         holder.tableAccounts.removeViews(accCount,
 215                                 holder.tableAccounts.getChildCount() - accCount);
 216                     }
 217
 218 //                    debug("transactions",
 219 //                            String.format("Position %d fill done", step.getPosition()));
 220             }
 221         }
 222     }
 223
 224     private class TransactionLoaderParams {
 225         LedgerTransaction transaction;
 226         TransactionRowHolder holder;
 227         int position;
 228         String boldAccountName;
 229         boolean odd;
 230         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 231                                 int position, String boldAccountName, boolean odd) {
 232             this.transaction = transaction;
 233             this.holder = holder;
 234             this.position = position;
 235             this.boldAccountName = boldAccountName;
 236             this.odd = odd;
 237         }
 238     }
 239 }