app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionRowHolder.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.text.format.DateUtils;
  21 import android.view.View;
  22 import android.widget.LinearLayout;
  23 import android.widget.TextView;
  24
  25 import androidx.annotation.NonNull;
  26 import androidx.cardview.widget.CardView;
  27 import androidx.constraintlayout.widget.ConstraintLayout;
  28 import androidx.recyclerview.widget.RecyclerView;
  29
  30 import net.ktnx.mobileledger.R;
  31 import net.ktnx.mobileledger.model.Data;
  32 import net.ktnx.mobileledger.model.TransactionListItem;
  33
  34 import java.util.Observer;
  35
  36 class TransactionRowHolder extends RecyclerView.ViewHolder {
  37     final TextView tvDescription;
  38     final TextView tvComment;
  39     final LinearLayout tableAccounts;
  40     final ConstraintLayout row;
  41     final ConstraintLayout vDelimiter;
  42     final CardView vTransaction;
  43     final TextView tvDelimiterMonth, tvDelimiterDate;
  44     final View vDelimiterThick;
  45     final View vHeader;
  46     final TextView tvLastUpdate;
  47     TransactionListItem.Type lastType;
  48     private Observer lastUpdateObserver;
  49     public TransactionRowHolder(@NonNull View itemView) {
  50         super(itemView);
  51         this.row = itemView.findViewById(R.id.transaction_row);
  52         this.tvDescription = itemView.findViewById(R.id.transaction_row_description);
  53         this.tvComment = itemView.findViewById(R.id.transaction_comment);
  54         this.tableAccounts = itemView.findViewById(R.id.transaction_row_acc_amounts);
  55         this.vDelimiter = itemView.findViewById(R.id.transaction_delimiter);
  56         this.vTransaction = itemView.findViewById(R.id.transaction_card_view);
  57         this.tvDelimiterDate = itemView.findViewById(R.id.transaction_delimiter_date);
  58         this.tvDelimiterMonth = itemView.findViewById(R.id.transaction_delimiter_month);
  59         this.vDelimiterThick = itemView.findViewById(R.id.transaction_delimiter_thick);
  60         this.vHeader = itemView.findViewById(R.id.last_update_container);
  61         this.tvLastUpdate = itemView.findViewById(R.id.last_update_text);
  62     }
  63     private void initLastUpdateObserver() {
  64         if (lastUpdateObserver != null)
  65             return;
  66
  67         lastUpdateObserver = (o, arg) -> setLastUpdateText(Data.lastUpdate.get());
  68
  69         Data.lastUpdate.addObserver(lastUpdateObserver);
  70     }
  71     void setLastUpdateText(long lastUpdate) {
  72         final int formatFlags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
  73                                 DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_NUMERIC_DATE;
  74         tvLastUpdate.setText((lastUpdate == 0) ? "----"
  75                                                : DateUtils.formatDateTime(tvLastUpdate.getContext(),
  76                                                        lastUpdate, formatFlags));
  77     }
  78     private void dropLastUpdateObserver() {
  79         if (lastUpdateObserver == null)
  80             return;
  81
  82         Data.lastUpdate.deleteObserver(lastUpdateObserver);
  83         lastUpdateObserver = null;
  84     }
  85     void setType(TransactionListItem.Type newType) {
  86         if (newType == lastType)
  87             return;
  88
  89         switch (newType) {
  90             case TRANSACTION:
  91                 vHeader.setVisibility(View.GONE);
  92                 vTransaction.setVisibility(View.VISIBLE);
  93                 vDelimiter.setVisibility(View.GONE);
  94                 dropLastUpdateObserver();
  95                 break;
  96             case DELIMITER:
  97                 vHeader.setVisibility(View.GONE);
  98                 vTransaction.setVisibility(View.GONE);
  99                 vDelimiter.setVisibility(View.VISIBLE);
 100                 dropLastUpdateObserver();
 101                 break;
 102             case HEADER:
 103                 vHeader.setVisibility(View.VISIBLE);
 104                 vTransaction.setVisibility(View.GONE);
 105                 vDelimiter.setVisibility(View.GONE);
 106                 initLastUpdateObserver();
 107                 break;
 108             default:
 109                 throw new IllegalStateException("Unexpected value: " + newType);
 110         }
 111
 112         lastType = newType;
 113     }
 114 }