app/src/main/java/net/ktnx/mobileledger/ui/account_summary/AccountSummaryAdapter.java

   1 /*
   2  * Copyright © 2021 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.account_summary;
  19
  20 import android.content.res.Resources;
  21 import android.os.AsyncTask;
  22 import android.os.Handler;
  23 import android.os.Looper;
  24 import android.view.LayoutInflater;
  25 import android.view.View;
  26 import android.view.ViewGroup;
  27
  28 import androidx.annotation.NonNull;
  29 import androidx.appcompat.app.AlertDialog;
  30 import androidx.constraintlayout.widget.ConstraintLayout;
  31 import androidx.lifecycle.LifecycleOwner;
  32 import androidx.recyclerview.widget.AsyncListDiffer;
  33 import androidx.recyclerview.widget.DiffUtil;
  34 import androidx.recyclerview.widget.RecyclerView;
  35
  36 import net.ktnx.mobileledger.R;
  37 import net.ktnx.mobileledger.databinding.AccountListRowBinding;
  38 import net.ktnx.mobileledger.databinding.AccountListSummaryRowBinding;
  39 import net.ktnx.mobileledger.db.Account;
  40 import net.ktnx.mobileledger.db.DB;
  41 import net.ktnx.mobileledger.model.AccountListItem;
  42 import net.ktnx.mobileledger.model.LedgerAccount;
  43 import net.ktnx.mobileledger.ui.activity.MainActivity;
  44 import net.ktnx.mobileledger.utils.Logger;
  45 import net.ktnx.mobileledger.utils.Misc;
  46
  47 import org.jetbrains.annotations.NotNull;
  48
  49 import java.util.List;
  50 import java.util.Locale;
  51
  52 import static net.ktnx.mobileledger.utils.Logger.debug;
  53
  54 public class AccountSummaryAdapter extends RecyclerView.Adapter<AccountSummaryAdapter.RowHolder> {
  55     public static final int AMOUNT_LIMIT = 3;
  56     private static final int ITEM_TYPE_HEADER = 1;
  57     private static final int ITEM_TYPE_ACCOUNT = 2;
  58     private final AsyncListDiffer<AccountListItem> listDiffer;
  59     AccountSummaryAdapter() {
  60         setHasStableIds(true);
  61
  62         listDiffer = new AsyncListDiffer<>(this, new DiffUtil.ItemCallback<AccountListItem>() {
  63             @Override
  64             public boolean areItemsTheSame(@NotNull AccountListItem oldItem,
  65                                            @NotNull AccountListItem newItem) {
  66                 final AccountListItem.Type oldType = oldItem.getType();
  67                 final AccountListItem.Type newType = newItem.getType();
  68                 if (oldType != newType)
  69                     return false;
  70                 if (oldType == AccountListItem.Type.HEADER)
  71                     return true;
  72
  73                 return Misc.equalStrings(oldItem.getAccount()
  74                                                 .getName(), newItem.getAccount()
  75                                                                    .getName());
  76             }
  77             @Override
  78             public boolean areContentsTheSame(@NotNull AccountListItem oldItem,
  79                                               @NotNull AccountListItem newItem) {
  80                 return oldItem.sameContent(newItem);
  81             }
  82         });
  83     }
  84     @Override
  85     public long getItemId(int position) {
  86         if (position == 0)
  87             return 0;
  88         return listDiffer.getCurrentList()
  89                          .get(position)
  90                          .getAccount()
  91                          .getId();
  92     }
  93     public void onBindViewHolder(@NonNull RowHolder holder, int position) {
  94         holder.bind(listDiffer.getCurrentList()
  95                               .get(position));
  96     }
  97
  98     @NonNull
  99     @Override
 100     public RowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 101         final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
 102
 103         final RowHolder result;
 104         switch (viewType) {
 105             case ITEM_TYPE_HEADER:
 106                 result = new HeaderRowHolder(
 107                         AccountListSummaryRowBinding.inflate(inflater, parent, false));
 108                 break;
 109             case ITEM_TYPE_ACCOUNT:
 110                 result = new AccountRowHolder(
 111                         AccountListRowBinding.inflate(inflater, parent, false));
 112                 break;
 113             default:
 114                 throw new IllegalStateException("Unexpected value: " + viewType);
 115         }
 116
 117         Logger.debug("acc-ui", "Creating " + result);
 118         return result;
 119     }
 120
 121     @Override
 122     public int getItemCount() {
 123         return listDiffer.getCurrentList()
 124                          .size();
 125     }
 126     @Override
 127     public int getItemViewType(int position) {
 128         return (position == 0) ? ITEM_TYPE_HEADER : ITEM_TYPE_ACCOUNT;
 129     }
 130     public void setAccounts(List<AccountListItem> newList) {
 131         new Handler(Looper.getMainLooper()).post(() -> listDiffer.submitList(newList));
 132     }
 133     static abstract class RowHolder extends RecyclerView.ViewHolder {
 134         public RowHolder(@NonNull View itemView) {
 135             super(itemView);
 136         }
 137         public abstract void bind(AccountListItem accountListItem);
 138     }
 139
 140     static class HeaderRowHolder extends RowHolder {
 141         private final AccountListSummaryRowBinding b;
 142         public HeaderRowHolder(@NonNull AccountListSummaryRowBinding binding) {
 143             super(binding.getRoot());
 144             b = binding;
 145         }
 146         @Override
 147         public void bind(AccountListItem item) {
 148             Resources r = itemView.getResources();
 149             Logger.debug("acc", itemView.getContext()
 150                                         .toString());
 151             ((AccountListItem.Header) item).getText()
 152                                            .observe((LifecycleOwner) itemView.getContext(),
 153                                                    b.lastUpdateText::setText);
 154         }
 155     }
 156
 157     class AccountRowHolder extends AccountSummaryAdapter.RowHolder {
 158         private final AccountListRowBinding b;
 159         public AccountRowHolder(@NonNull AccountListRowBinding binding) {
 160             super(binding.getRoot());
 161             b = binding;
 162
 163             itemView.setOnLongClickListener(this::onItemLongClick);
 164             b.accountRowAccName.setOnLongClickListener(this::onItemLongClick);
 165             b.accountRowAccAmounts.setOnLongClickListener(this::onItemLongClick);
 166             b.accountExpanderContainer.setOnLongClickListener(this::onItemLongClick);
 167             b.accountExpander.setOnLongClickListener(this::onItemLongClick);
 168
 169             b.accountRowAccName.setOnClickListener(v -> toggleAccountExpanded());
 170             b.accountExpanderContainer.setOnClickListener(v -> toggleAccountExpanded());
 171             b.accountExpander.setOnClickListener(v -> toggleAccountExpanded());
 172             b.accountRowAccAmounts.setOnClickListener(v -> toggleAmountsExpanded());
 173         }
 174         private void toggleAccountExpanded() {
 175             LedgerAccount account = getAccount();
 176             if (!account.hasSubAccounts())
 177                 return;
 178             debug("accounts", "Account expander clicked");
 179
 180             AsyncTask.execute(() -> {
 181                 Account dbo = account.toDBO();
 182                 dbo.setExpanded(!dbo.isExpanded());
 183                 Logger.debug("accounts",
 184                         String.format(Locale.ROOT, "%s (%d) → %s", account.getName(), dbo.getId(),
 185                                 dbo.isExpanded() ? "expanded" : "collapsed"));
 186                 DB.get()
 187                   .getAccountDAO()
 188                   .updateSync(dbo);
 189             });
 190         }
 191         @NotNull
 192         private LedgerAccount getAccount() {
 193             return listDiffer.getCurrentList()
 194                              .get(getAdapterPosition())
 195                              .getAccount();
 196         }
 197         private void toggleAmountsExpanded() {
 198             LedgerAccount account = getAccount();
 199             if (account.getAmountCount() <= AMOUNT_LIMIT)
 200                 return;
 201
 202             account.toggleAmountsExpanded();
 203             if (account.amountsExpanded()) {
 204                 b.accountRowAccAmounts.setText(account.getAmountsString());
 205                 b.accountRowAmountsExpanderContainer.setVisibility(View.GONE);
 206             }
 207             else {
 208                 b.accountRowAccAmounts.setText(account.getAmountsString(AMOUNT_LIMIT));
 209                 b.accountRowAmountsExpanderContainer.setVisibility(View.VISIBLE);
 210             }
 211
 212             AsyncTask.execute(() -> {
 213                 Account dbo = account.toDBO();
 214                 DB.get()
 215                   .getAccountDAO()
 216                   .updateSync(dbo);
 217             });
 218         }
 219         private boolean onItemLongClick(View v) {
 220             MainActivity activity = (MainActivity) v.getContext();
 221             AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 222             final String accountName = getAccount().getName();
 223             builder.setTitle(accountName);
 224             builder.setItems(R.array.acc_ctx_menu, (dialog, which) -> {
 225                 if (which == 0) {// show transactions
 226                     activity.showAccountTransactions(accountName);
 227                 }
 228                 else {
 229                     throw new RuntimeException(String.format("Unknown menu item id (%d)", which));
 230                 }
 231                 dialog.dismiss();
 232             });
 233             builder.show();
 234             return true;
 235         }
 236         @Override
 237         public void bind(AccountListItem item) {
 238             LedgerAccount acc = item.getAccount();
 239
 240             debug("accounts",
 241                     String.format(Locale.US, "Binding to '%s' to %s", acc.getName(), this));
 242             Resources rm = b.getRoot()
 243                             .getContext()
 244                             .getResources();
 245
 246             b.accountRowAccName.setText(acc.getShortName());
 247
 248             ConstraintLayout.LayoutParams lp =
 249                     (ConstraintLayout.LayoutParams) b.accountNameLayout.getLayoutParams();
 250             lp.setMarginStart(
 251                     acc.getLevel() * rm.getDimensionPixelSize(R.dimen.thumb_row_height) / 3);
 252
 253             if (acc.hasSubAccounts()) {
 254                 b.accountExpanderContainer.setVisibility(View.VISIBLE);
 255                 int wantedRotation = acc.isExpanded() ? 0 : 180;
 256                 if (b.accountExpanderContainer.getRotation() != wantedRotation) {
 257                     Logger.debug("acc-ui",
 258                             String.format(Locale.ROOT, "Rotating %s to %d", acc.getName(),
 259                                     wantedRotation));
 260                     b.accountExpanderContainer.animate()
 261                                               .rotation(wantedRotation);
 262                 }
 263             }
 264             else {
 265                 b.accountExpanderContainer.setVisibility(View.GONE);
 266             }
 267
 268             int amounts = acc.getAmountCount();
 269             if ((amounts > AMOUNT_LIMIT) && !acc.amountsExpanded()) {
 270                 b.accountRowAccAmounts.setText(acc.getAmountsString(AMOUNT_LIMIT));
 271                 b.accountRowAmountsExpanderContainer.setVisibility(View.VISIBLE);
 272             }
 273             else {
 274                 b.accountRowAccAmounts.setText(acc.getAmountsString());
 275                 b.accountRowAmountsExpanderContainer.setVisibility(View.GONE);
 276             }
 277         }
 278     }
 279 }