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.annotation.Nullable;
  30 import androidx.appcompat.app.AlertDialog;
  31 import androidx.constraintlayout.widget.ConstraintLayout;
  32 import androidx.lifecycle.LifecycleOwner;
  33 import androidx.recyclerview.widget.AsyncListDiffer;
  34 import androidx.recyclerview.widget.DiffUtil;
  35 import androidx.recyclerview.widget.RecyclerView;
  36
  37 import net.ktnx.mobileledger.R;
  38 import net.ktnx.mobileledger.databinding.AccountListRowBinding;
  39 import net.ktnx.mobileledger.databinding.AccountListSummaryRowBinding;
  40 import net.ktnx.mobileledger.db.Account;
  41 import net.ktnx.mobileledger.db.DB;
  42 import net.ktnx.mobileledger.model.AccountListItem;
  43 import net.ktnx.mobileledger.model.LedgerAccount;
  44 import net.ktnx.mobileledger.ui.activity.MainActivity;
  45 import net.ktnx.mobileledger.utils.Logger;
  46 import net.ktnx.mobileledger.utils.Misc;
  47
  48 import org.jetbrains.annotations.NotNull;
  49
  50 import java.util.List;
  51 import java.util.Locale;
  52
  53 import static net.ktnx.mobileledger.utils.Logger.debug;
  54
  55 public class AccountSummaryAdapter extends RecyclerView.Adapter<AccountSummaryAdapter.RowHolder> {
  56     public static final int AMOUNT_LIMIT = 3;
  57     private static final int ITEM_TYPE_HEADER = 1;
  58     private static final int ITEM_TYPE_ACCOUNT = 2;
  59     private final AsyncListDiffer<AccountListItem> listDiffer;
  60
  61     AccountSummaryAdapter() {
  62         setHasStableIds(true);
  63
  64         listDiffer = new AsyncListDiffer<>(this, new DiffUtil.ItemCallback<AccountListItem>() {
  65             @Nullable
  66             @Override
  67             public Object getChangePayload(@NonNull AccountListItem oldItem,
  68                                            @NonNull AccountListItem newItem) {
  69                 Change changes = new Change();
  70
  71                 final LedgerAccount oldAcc = oldItem.getAccount();
  72                 final LedgerAccount newAcc = newItem.getAccount();
  73
  74                 if (!Misc.equalStrings(oldAcc.getName(), newAcc.getName()))
  75                     changes.add(Change.NAME);
  76
  77                 if (oldAcc.getLevel() != newAcc.getLevel())
  78                     changes.add(Change.LEVEL);
  79
  80                 if (oldAcc.isExpanded() != newAcc.isExpanded())
  81                     changes.add(Change.EXPANDED);
  82
  83                 if (oldAcc.amountsExpanded() != newAcc.amountsExpanded())
  84                     changes.add(Change.EXPANDED_AMOUNTS);
  85
  86                 if (!oldAcc.getAmountsString()
  87                            .equals(newAcc.getAmountsString()))
  88                     changes.add(Change.AMOUNTS);
  89
  90                 return changes.toPayload();
  91             }
  92             @Override
  93             public boolean areItemsTheSame(@NotNull AccountListItem oldItem,
  94                                            @NotNull AccountListItem newItem) {
  95                 final AccountListItem.Type oldType = oldItem.getType();
  96                 final AccountListItem.Type newType = newItem.getType();
  97                 if (oldType != newType)
  98                     return false;
  99                 if (oldType == AccountListItem.Type.HEADER)
 100                     return true;
 101
 102                 return oldItem.getAccount()
 103                               .getId() == newItem.getAccount()
 104                                                  .getId();
 105             }
 106             @Override
 107             public boolean areContentsTheSame(@NotNull AccountListItem oldItem,
 108                                               @NotNull AccountListItem newItem) {
 109                 return oldItem.sameContent(newItem);
 110             }
 111         });
 112     }
 113     @Override
 114     public long getItemId(int position) {
 115         if (position == 0)
 116             return 0;
 117         return listDiffer.getCurrentList()
 118                          .get(position)
 119                          .getAccount()
 120                          .getId();
 121     }
 122     @Override
 123     public void onBindViewHolder(@NonNull RowHolder holder, int position,
 124                                  @NonNull List<Object> payloads) {
 125         holder.bind(listDiffer.getCurrentList()
 126                               .get(position), payloads);
 127         super.onBindViewHolder(holder, position, payloads);
 128     }
 129     public void onBindViewHolder(@NonNull RowHolder holder, int position) {
 130         holder.bind(listDiffer.getCurrentList()
 131                               .get(position), null);
 132     }
 133     @NonNull
 134     @Override
 135     public RowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 136         final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
 137
 138         final RowHolder result;
 139         switch (viewType) {
 140             case ITEM_TYPE_HEADER:
 141                 result = new HeaderRowHolder(
 142                         AccountListSummaryRowBinding.inflate(inflater, parent, false));
 143                 break;
 144             case ITEM_TYPE_ACCOUNT:
 145                 result = new AccountRowHolder(
 146                         AccountListRowBinding.inflate(inflater, parent, false));
 147                 break;
 148             default:
 149                 throw new IllegalStateException("Unexpected value: " + viewType);
 150         }
 151
 152 //        Logger.debug("acc-ui", "Creating " + result);
 153         return result;
 154     }
 155     @Override
 156     public int getItemCount() {
 157         return listDiffer.getCurrentList()
 158                          .size();
 159     }
 160     @Override
 161     public int getItemViewType(int position) {
 162         return (position == 0) ? ITEM_TYPE_HEADER : ITEM_TYPE_ACCOUNT;
 163     }
 164     public void setAccounts(List<AccountListItem> newList) {
 165         new Handler(Looper.getMainLooper()).post(() -> listDiffer.submitList(newList));
 166     }
 167     static class Change {
 168         static final int NAME = 1;
 169         static final int EXPANDED = 1 << 1;
 170         static final int LEVEL = 1 << 2;
 171         static final int EXPANDED_AMOUNTS = 1 << 3;
 172         static final int AMOUNTS = 1 << 4;
 173         private int value = 0;
 174         public Change() {
 175         }
 176         public Change(int initialValue) {
 177             value = initialValue;
 178         }
 179         public void add(int bits) {
 180             value = value | bits;
 181         }
 182         public void add(Change change) {
 183             value = value | change.value;
 184         }
 185         public void remove(int bits) {
 186             value = value & (~bits);
 187         }
 188         public void remove(Change change) {
 189             value = value & (~change.value);
 190         }
 191         public Change toPayload() {
 192             if (value == 0)
 193                 return null;
 194             return this;
 195         }
 196         public boolean has(int bits) {
 197             return value == 0 || (value & bits) == bits;
 198         }
 199     }
 200
 201     static abstract class RowHolder extends RecyclerView.ViewHolder {
 202         public RowHolder(@NonNull View itemView) {
 203             super(itemView);
 204         }
 205         public abstract void bind(AccountListItem accountListItem, @Nullable List<Object> payloads);
 206     }
 207
 208     static class HeaderRowHolder extends RowHolder {
 209         private final AccountListSummaryRowBinding b;
 210         public HeaderRowHolder(@NonNull AccountListSummaryRowBinding binding) {
 211             super(binding.getRoot());
 212             b = binding;
 213         }
 214         @Override
 215         public void bind(AccountListItem item, @Nullable List<Object> payloads) {
 216             Resources r = itemView.getResources();
 217 //            Logger.debug("acc", itemView.getContext()
 218 //                                        .toString());
 219             ((AccountListItem.Header) item).getText()
 220                                            .observe((LifecycleOwner) itemView.getContext(),
 221                                                    b.lastUpdateText::setText);
 222         }
 223     }
 224
 225     class AccountRowHolder extends AccountSummaryAdapter.RowHolder {
 226         private final AccountListRowBinding b;
 227         public AccountRowHolder(@NonNull AccountListRowBinding binding) {
 228             super(binding.getRoot());
 229             b = binding;
 230
 231             itemView.setOnLongClickListener(this::onItemLongClick);
 232             b.accountRowAccName.setOnLongClickListener(this::onItemLongClick);
 233             b.accountRowAccAmounts.setOnLongClickListener(this::onItemLongClick);
 234             b.accountExpanderContainer.setOnLongClickListener(this::onItemLongClick);
 235             b.accountExpander.setOnLongClickListener(this::onItemLongClick);
 236
 237             b.accountRowAccName.setOnClickListener(v -> toggleAccountExpanded());
 238             b.accountExpanderContainer.setOnClickListener(v -> toggleAccountExpanded());
 239             b.accountExpander.setOnClickListener(v -> toggleAccountExpanded());
 240             b.accountRowAccAmounts.setOnClickListener(v -> toggleAmountsExpanded());
 241         }
 242         private void toggleAccountExpanded() {
 243             LedgerAccount account = getAccount();
 244             if (!account.hasSubAccounts())
 245                 return;
 246             debug("accounts", "Account expander clicked");
 247
 248             AsyncTask.execute(() -> {
 249                 Account dbo = account.toDBO();
 250                 dbo.setExpanded(!dbo.isExpanded());
 251                 Logger.debug("accounts",
 252                         String.format(Locale.ROOT, "%s (%d) → %s", account.getName(), dbo.getId(),
 253                                 dbo.isExpanded() ? "expanded" : "collapsed"));
 254                 DB.get()
 255                   .getAccountDAO()
 256                   .updateSync(dbo);
 257             });
 258         }
 259         @NotNull
 260         private LedgerAccount getAccount() {
 261             return listDiffer.getCurrentList()
 262                              .get(getBindingAdapterPosition())
 263                              .getAccount();
 264         }
 265         private void toggleAmountsExpanded() {
 266             LedgerAccount account = getAccount();
 267             if (account.getAmountCount() <= AMOUNT_LIMIT)
 268                 return;
 269
 270             account.toggleAmountsExpanded();
 271             if (account.amountsExpanded()) {
 272                 b.accountRowAccAmounts.setText(account.getAmountsString());
 273                 b.accountRowAmountsExpanderContainer.setVisibility(View.GONE);
 274             }
 275             else {
 276                 b.accountRowAccAmounts.setText(account.getAmountsString(AMOUNT_LIMIT));
 277                 b.accountRowAmountsExpanderContainer.setVisibility(View.VISIBLE);
 278             }
 279
 280             AsyncTask.execute(() -> {
 281                 Account dbo = account.toDBO();
 282                 DB.get()
 283                   .getAccountDAO()
 284                   .updateSync(dbo);
 285             });
 286         }
 287         private boolean onItemLongClick(View v) {
 288             MainActivity activity = (MainActivity) v.getContext();
 289             AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 290             final String accountName = getAccount().getName();
 291             builder.setTitle(accountName);
 292             builder.setItems(R.array.acc_ctx_menu, (dialog, which) -> {
 293                 if (which == 0) {// show transactions
 294                     activity.showAccountTransactions(accountName);
 295                 }
 296                 else {
 297                     throw new RuntimeException(String.format("Unknown menu item id (%d)", which));
 298                 }
 299                 dialog.dismiss();
 300             });
 301             builder.show();
 302             return true;
 303         }
 304         @Override
 305         public void bind(AccountListItem item, @Nullable List<Object> payloads) {
 306             LedgerAccount acc = item.getAccount();
 307
 308             Change changes = new Change();
 309             if (payloads != null) {
 310                 for (Object p : payloads) {
 311                     if (p instanceof Change)
 312                         changes.add((Change) p);
 313                 }
 314             }
 315 //            debug("accounts",
 316 //                    String.format(Locale.US, "Binding '%s' to %s", acc.getName(), this));
 317
 318             Resources rm = b.getRoot()
 319                             .getContext()
 320                             .getResources();
 321
 322             if (changes.has(Change.NAME))
 323                 b.accountRowAccName.setText(acc.getShortName());
 324
 325             if (changes.has(Change.LEVEL)) {
 326                 ConstraintLayout.LayoutParams lp =
 327                         (ConstraintLayout.LayoutParams) b.accountNameLayout.getLayoutParams();
 328                 lp.setMarginStart(
 329                         acc.getLevel() * rm.getDimensionPixelSize(R.dimen.thumb_row_height) / 3);
 330             }
 331
 332             if (acc.hasSubAccounts()) {
 333                 b.accountExpanderContainer.setVisibility(View.VISIBLE);
 334
 335                 if (changes.has(Change.EXPANDED)) {
 336                     int wantedRotation = acc.isExpanded() ? 0 : 180;
 337                     if (b.accountExpanderContainer.getRotation() != wantedRotation) {
 338 //                        Logger.debug("acc-ui",
 339 //                                String.format(Locale.ROOT, "Rotating %s to %d", acc.getName(),
 340 //                                        wantedRotation));
 341                         b.accountExpanderContainer.animate()
 342                                                   .rotation(wantedRotation);
 343                     }
 344                 }
 345             }
 346             else {
 347                 b.accountExpanderContainer.setVisibility(View.GONE);
 348             }
 349
 350             if (changes.has(Change.EXPANDED_AMOUNTS)) {
 351                 int amounts = acc.getAmountCount();
 352                 if ((amounts > AMOUNT_LIMIT) && !acc.amountsExpanded()) {
 353                     b.accountRowAccAmounts.setText(acc.getAmountsString(AMOUNT_LIMIT));
 354                     b.accountRowAmountsExpanderContainer.setVisibility(View.VISIBLE);
 355                 }
 356                 else {
 357                     b.accountRowAccAmounts.setText(acc.getAmountsString());
 358                     b.accountRowAmountsExpanderContainer.setVisibility(View.GONE);
 359                 }
 360             }
 361         }
 362     }
 363 }