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.ColorInt;
  35 import androidx.annotation.NonNull;
  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 import net.ktnx.mobileledger.utils.Misc;
  47 import net.ktnx.mobileledger.utils.SimpleDate;
  48
  49 import java.text.DateFormat;
  50 import java.util.GregorianCalendar;
  51 import java.util.TimeZone;
  52
  53 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  54     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  55         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  56
  57         // in a race when transaction value is reduced, but the model hasn't been notified yet
  58         // the view will disappear when the notifications reaches the model, so by simply omitting
  59         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  60         // a bit longer
  61         if (item == null)
  62             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
  71                 //        accounts", position,
  72                 //                tr.getAccounts().size()));
  73
  74                 TransactionLoader loader = new TransactionLoader();
  75                 loader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
  76                         new TransactionLoaderParams(tr, holder, position,
  77                                 Data.accountFilter.getValue(), item.isOdd()));
  78
  79                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  80                 // when a view that was previously holding a delimiter is re-purposed
  81                 // occasionally it stays too short (not high enough)
  82                 holder.vTransaction.measure(
  83                         View.MeasureSpec.makeMeasureSpec(holder.itemView.getWidth(),
  84                                 View.MeasureSpec.EXACTLY),
  85                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  86                 break;
  87             case DELIMITER:
  88                 SimpleDate date = item.getDate();
  89                 holder.vTransaction.setVisibility(View.GONE);
  90                 holder.vDelimiter.setVisibility(View.VISIBLE);
  91                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance()
  92                                                          .format(date.toDate()));
  93                 if (item.isMonthShown()) {
  94                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  95                     cal.setTime(date.toDate());
  96                     App.prepareMonthNames();
  97                     holder.tvDelimiterMonth.setText(
  98                             Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  99                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
 100                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
 101                     //                .dashed_border_8dp);
 102                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
 103                 }
 104                 else {
 105                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 106                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
 107                     //                .dashed_border_1dp);
 108                     holder.vDelimiterThick.setVisibility(View.GONE);
 109                 }
 110                 break;
 111         }
 112     }
 113
 114     @NonNull
 115     @Override
 116     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 117 //        debug("perf", "onCreateViewHolder called");
 118         View row = LayoutInflater.from(parent.getContext())
 119                                  .inflate(R.layout.transaction_list_row, parent, false);
 120         return new TransactionRowHolder(row);
 121     }
 122
 123     @Override
 124     public int getItemCount() {
 125         return Data.transactions.size();
 126     }
 127     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 128
 129     private static class TransactionLoader
 130             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 131         @Override
 132         protected Void doInBackground(TransactionLoaderParams... p) {
 133             LedgerTransaction tr = p[0].transaction;
 134             boolean odd = p[0].odd;
 135
 136             SQLiteDatabase db = App.getDatabase();
 137             tr.loadData(db);
 138
 139             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 140
 141             int rowIndex = 0;
 142             // FIXME ConcurrentModificationException in ArrayList$ltr.next (ArrayList.java:831)
 143             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 144 //                debug(c.getAccountName(), acc.getAmount()));
 145                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 146                         p[0].boldAccountName));
 147             }
 148
 149             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 150
 151             return null;
 152         }
 153         @Override
 154         protected void onProgressUpdate(TransactionLoaderStep... values) {
 155             super.onProgressUpdate(values);
 156             TransactionLoaderStep step = values[0];
 157             TransactionRowHolder holder = step.getHolder();
 158
 159             switch (step.getStep()) {
 160                 case HEAD:
 161                     holder.tvDescription.setText(step.getTransaction()
 162                                                      .getDescription());
 163                     String trComment = Misc.emptyIsNull(step.getTransaction()
 164                                                             .getComment());
 165                     if (trComment == null)
 166                         holder.tvComment.setVisibility(View.GONE);
 167                     else {
 168                         holder.tvComment.setText(trComment);
 169                         holder.tvComment.setVisibility(View.VISIBLE);
 170                     }
 171
 172 //                    if (step.isOdd())
 173 //                        holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 174 //                    else
 175 //                        holder.row.setBackgroundColor(Colors.tableRowLightBG);
 176
 177                     break;
 178                 case ACCOUNTS:
 179                     int rowIndex = step.getAccountPosition();
 180                     Context ctx = holder.row.getContext();
 181                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 182                     if (row == null) {
 183                         LayoutInflater inflater = ((Activity) ctx).getLayoutInflater();
 184                         row = (LinearLayout) inflater.inflate(
 185                                 R.layout.transaction_list_row_accounts_table_row, null);
 186                         // if the rootView above is given (and the line below is spared)
 187                         // the accounts remain with their default text (set in the layout resource)
 188                         holder.tableAccounts.addView(row);
 189                     }
 190                     TextView dummyText = row.findViewById(R.id.dummy_text);
 191                     TextView accName = row.findViewById(R.id.transaction_list_acc_row_acc_name);
 192                     TextView accComment =
 193                             row.findViewById(R.id.transaction_list_acc_row_acc_comment);
 194                     TextView accAmount = row.findViewById(R.id.transaction_list_acc_row_acc_amount);
 195                     LedgerTransactionAccount acc = step.getAccount();
 196
 197
 198 //                    debug("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 199 //                            acc.getAccountName(), acc.getAmount()));
 200
 201                     String boldAccountName = step.getBoldAccountName();
 202                     if ((boldAccountName != null) && acc.getAccountName()
 203                                                         .startsWith(boldAccountName))
 204                     {
 205                         accName.setTextColor(Colors.secondary);
 206                         accAmount.setTextColor(Colors.secondary);
 207
 208                         SpannableString ss = new SpannableString(acc.getAccountName());
 209                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 210                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 211                         accName.setText(ss);
 212                     }
 213                     else {
 214                         @ColorInt int textColor = dummyText.getTextColors()
 215                                                            .getDefaultColor();
 216                         accName.setTextColor(textColor);
 217                         accAmount.setTextColor(textColor);
 218                         accName.setText(acc.getAccountName());
 219                     }
 220
 221                     String comment = acc.getComment();
 222                     if (comment != null && !comment.isEmpty()) {
 223                         accComment.setText(comment);
 224                         accComment.setVisibility(View.VISIBLE);
 225                     }
 226                     else {
 227                         accComment.setVisibility(View.GONE);
 228                     }
 229                     accAmount.setText(acc.toString());
 230
 231                     break;
 232                 case DONE:
 233                     int accCount = step.getAccountCount();
 234                     if (holder.tableAccounts.getChildCount() > accCount) {
 235                         holder.tableAccounts.removeViews(accCount,
 236                                 holder.tableAccounts.getChildCount() - accCount);
 237                     }
 238
 239 //                    debug("transactions",
 240 //                            String.format("Position %d fill done", step.getPosition()));
 241             }
 242         }
 243     }
 244
 245     private class TransactionLoaderParams {
 246         LedgerTransaction transaction;
 247         TransactionRowHolder holder;
 248         int position;
 249         String boldAccountName;
 250         boolean odd;
 251         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 252                                 int position, String boldAccountName, boolean odd) {
 253             this.transaction = transaction;
 254             this.holder = holder;
 255             this.position = position;
 256             this.boldAccountName = boldAccountName;
 257             this.odd = odd;
 258         }
 259     }
 260 }