app/src/main/java/net/ktnx/mobileledger/ui/templates/TemplateDetailsAdapter.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.templates;
  19
  20 import android.annotation.SuppressLint;
  21 import android.content.res.Resources;
  22 import android.text.Editable;
  23 import android.text.TextWatcher;
  24 import android.view.LayoutInflater;
  25 import android.view.MotionEvent;
  26 import android.view.View;
  27 import android.view.ViewGroup;
  28 import android.widget.TextView;
  29
  30 import androidx.annotation.NonNull;
  31 import androidx.appcompat.app.AppCompatActivity;
  32 import androidx.recyclerview.widget.AsyncListDiffer;
  33 import androidx.recyclerview.widget.DiffUtil;
  34 import androidx.recyclerview.widget.ItemTouchHelper;
  35 import androidx.recyclerview.widget.RecyclerView;
  36
  37 import net.ktnx.mobileledger.R;
  38 import net.ktnx.mobileledger.databinding.TemplateDetailsAccountBinding;
  39 import net.ktnx.mobileledger.databinding.TemplateDetailsHeaderBinding;
  40 import net.ktnx.mobileledger.db.AccountAutocompleteAdapter;
  41 import net.ktnx.mobileledger.db.TemplateBase;
  42 import net.ktnx.mobileledger.model.Data;
  43 import net.ktnx.mobileledger.model.TemplateDetailsItem;
  44 import net.ktnx.mobileledger.ui.QRScanCapableFragment;
  45 import net.ktnx.mobileledger.ui.TemplateDetailSourceSelectorFragment;
  46 import net.ktnx.mobileledger.utils.Logger;
  47 import net.ktnx.mobileledger.utils.Misc;
  48
  49 import org.jetbrains.annotations.NotNull;
  50
  51 import java.text.ParseException;
  52 import java.util.ArrayList;
  53 import java.util.List;
  54 import java.util.Locale;
  55 import java.util.regex.Matcher;
  56 import java.util.regex.Pattern;
  57
  58 class TemplateDetailsAdapter extends RecyclerView.Adapter<TemplateDetailsAdapter.ViewHolder> {
  59     private static final String D_TEMPLATE_UI = "template-ui";
  60     private final AsyncListDiffer<TemplateDetailsItem> differ;
  61     private final TemplateDetailsViewModel mModel;
  62     private final ItemTouchHelper itemTouchHelper;
  63     public TemplateDetailsAdapter(TemplateDetailsViewModel model) {
  64         super();
  65         mModel = model;
  66         setHasStableIds(true);
  67         differ = new AsyncListDiffer<>(this, new DiffUtil.ItemCallback<TemplateDetailsItem>() {
  68             @Override
  69             public boolean areItemsTheSame(@NonNull TemplateDetailsItem oldItem,
  70                                            @NonNull TemplateDetailsItem newItem) {
  71                 if (oldItem.getType() != newItem.getType())
  72                     return false;
  73                 if (oldItem.getType()
  74                            .equals(TemplateDetailsItem.Type.HEADER))
  75                     return true;    // only one header item, ever
  76                 // the rest is comparing two account row items
  77                 return oldItem.asAccountRowItem()
  78                               .getId() == newItem.asAccountRowItem()
  79                                                  .getId();
  80             }
  81             @Override
  82             public boolean areContentsTheSame(@NonNull TemplateDetailsItem oldItem,
  83                                               @NonNull TemplateDetailsItem newItem) {
  84                 if (oldItem.getType()
  85                            .equals(TemplateDetailsItem.Type.HEADER))
  86                 {
  87                     TemplateDetailsItem.Header oldHeader = oldItem.asHeaderItem();
  88                     TemplateDetailsItem.Header newHeader = newItem.asHeaderItem();
  89
  90                     return oldHeader.equalContents(newHeader);
  91                 }
  92                 else {
  93                     TemplateDetailsItem.AccountRow oldAcc = oldItem.asAccountRowItem();
  94                     TemplateDetailsItem.AccountRow newAcc = newItem.asAccountRowItem();
  95
  96                     return oldAcc.equalContents(newAcc);
  97                 }
  98             }
  99         });
 100         itemTouchHelper = new ItemTouchHelper(new ItemTouchHelper.Callback() {
 101             @Override
 102             public float getMoveThreshold(@NonNull RecyclerView.ViewHolder viewHolder) {
 103                 return 0.1f;
 104             }
 105             @Override
 106             public boolean isLongPressDragEnabled() {
 107                 return false;
 108             }
 109             @Override
 110             public RecyclerView.ViewHolder chooseDropTarget(
 111                     @NonNull RecyclerView.ViewHolder selected,
 112                     @NonNull List<RecyclerView.ViewHolder> dropTargets, int curX, int curY) {
 113                 RecyclerView.ViewHolder best = null;
 114                 int bestDistance = 0;
 115                 for (RecyclerView.ViewHolder v : dropTargets) {
 116                     if (v == selected)
 117                         continue;
 118
 119                     final int viewTop = v.itemView.getTop();
 120                     int distance = Math.abs(viewTop - curY);
 121                     if (best == null) {
 122                         best = v;
 123                         bestDistance = distance;
 124                     }
 125                     else {
 126                         if (distance < bestDistance) {
 127                             bestDistance = distance;
 128                             best = v;
 129                         }
 130                     }
 131                 }
 132
 133                 Logger.debug("dnd", "Best target is " + best);
 134                 return best;
 135             }
 136             @Override
 137             public boolean canDropOver(@NonNull RecyclerView recyclerView,
 138                                        @NonNull RecyclerView.ViewHolder current,
 139                                        @NonNull RecyclerView.ViewHolder target) {
 140                 final int adapterPosition = target.getAdapterPosition();
 141
 142                 // first item is immovable
 143                 if (adapterPosition == 0)
 144                     return false;
 145
 146                 return super.canDropOver(recyclerView, current, target);
 147             }
 148             @Override
 149             public int getMovementFlags(@NonNull RecyclerView recyclerView,
 150                                         @NonNull RecyclerView.ViewHolder viewHolder) {
 151                 int flags = 0;
 152                 // the top item (transaction params) is always there
 153                 final int adapterPosition = viewHolder.getAdapterPosition();
 154                 if (adapterPosition > 0)
 155                     flags |= makeFlag(ItemTouchHelper.ACTION_STATE_DRAG,
 156                             ItemTouchHelper.UP | ItemTouchHelper.DOWN) |
 157                              makeFlag(ItemTouchHelper.ACTION_STATE_SWIPE,
 158                                      ItemTouchHelper.START | ItemTouchHelper.END);
 159
 160                 return flags;
 161             }
 162             @Override
 163             public boolean onMove(@NonNull RecyclerView recyclerView,
 164                                   @NonNull RecyclerView.ViewHolder viewHolder,
 165                                   @NonNull RecyclerView.ViewHolder target) {
 166
 167                 final int fromPosition = viewHolder.getAdapterPosition();
 168                 final int toPosition = target.getAdapterPosition();
 169                 if (fromPosition == toPosition) {
 170                     Logger.debug("drag", String.format(Locale.US,
 171                             "Ignoring request to move an account from position %d to %d",
 172                             fromPosition, toPosition));
 173                     return false;
 174                 }
 175
 176                 Logger.debug("drag",
 177                         String.format(Locale.US, "Moving account from %d to %d", fromPosition,
 178                                 toPosition));
 179                 mModel.moveItem(fromPosition, toPosition);
 180
 181                 return true;
 182             }
 183             @Override
 184             public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction) {
 185                 int pos = viewHolder.getAdapterPosition();
 186                 mModel.removeItem(pos);
 187             }
 188         });
 189     }
 190     @Override
 191     public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
 192         super.onAttachedToRecyclerView(recyclerView);
 193
 194         itemTouchHelper.attachToRecyclerView(recyclerView);
 195     }
 196     @Override
 197     public void onDetachedFromRecyclerView(@NonNull RecyclerView recyclerView) {
 198         super.onDetachedFromRecyclerView(recyclerView);
 199
 200         itemTouchHelper.attachToRecyclerView(null);
 201     }
 202     @Override
 203     public long getItemId(int position) {
 204         // header item is always first and IDs id may duplicate some of the account IDs
 205         if (position == 0)
 206             return 0;
 207         TemplateDetailsItem.AccountRow accRow = differ.getCurrentList()
 208                                                       .get(position)
 209                                                       .asAccountRowItem();
 210         return accRow.getId();
 211     }
 212     @Override
 213     public int getItemViewType(int position) {
 214
 215         return differ.getCurrentList()
 216                      .get(position)
 217                      .getType()
 218                      .toInt();
 219     }
 220     @NonNull
 221     @Override
 222     public TemplateDetailsAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent,
 223                                                                 int viewType) {
 224         final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
 225         switch (viewType) {
 226             case TemplateDetailsItem.TYPE.header:
 227                 return new Header(TemplateDetailsHeaderBinding.inflate(inflater, parent, false));
 228             case TemplateDetailsItem.TYPE.accountItem:
 229                 return new AccountRow(
 230                         TemplateDetailsAccountBinding.inflate(inflater, parent, false));
 231             default:
 232                 throw new IllegalStateException("Unsupported view type " + viewType);
 233         }
 234     }
 235     @Override
 236     public void onBindViewHolder(@NonNull TemplateDetailsAdapter.ViewHolder holder, int position) {
 237         TemplateDetailsItem item = differ.getCurrentList()
 238                                          .get(position);
 239         holder.bind(item);
 240     }
 241     @Override
 242     public int getItemCount() {
 243         return differ.getCurrentList()
 244                      .size();
 245     }
 246     public void setTemplateItems(List<TemplateBase> items) {
 247         ArrayList<TemplateDetailsItem> list = new ArrayList<>();
 248         for (TemplateBase p : items) {
 249             TemplateDetailsItem item = TemplateDetailsItem.fromRoomObject(p);
 250             list.add(item);
 251         }
 252         setItems(list);
 253     }
 254     public void setItems(List<TemplateDetailsItem> items) {
 255         differ.submitList(items);
 256     }
 257     public String getMatchGroupText(int groupNumber) {
 258         TemplateDetailsItem.Header header = getHeader();
 259         Pattern p = header.getCompiledPattern();
 260         if (p == null)
 261             return null;
 262
 263         final String testText = Misc.nullIsEmpty(header.getTestText());
 264         Matcher m = p.matcher(testText);
 265         if (m.matches() && m.groupCount() >= groupNumber)
 266             return m.group(groupNumber);
 267         else
 268             return null;
 269     }
 270     protected TemplateDetailsItem.Header getHeader() {
 271         return differ.getCurrentList()
 272                      .get(0)
 273                      .asHeaderItem();
 274     }
 275
 276     private enum HeaderDetail {DESCRIPTION, COMMENT, DATE_YEAR, DATE_MONTH, DATE_DAY}
 277
 278     private enum AccDetail {ACCOUNT, COMMENT, AMOUNT}
 279
 280     public abstract static class ViewHolder extends RecyclerView.ViewHolder {
 281         ViewHolder(@NonNull View itemView) {
 282             super(itemView);
 283         }
 284         abstract void bind(TemplateDetailsItem item);
 285     }
 286
 287     private abstract static class BaseItem extends ViewHolder {
 288         boolean updatePropagationDisabled = false;
 289         BaseItem(@NonNull View itemView) {
 290             super(itemView);
 291         }
 292         void disableUpdatePropagation() {
 293             updatePropagationDisabled = true;
 294         }
 295         void enableUpdatePropagation() {
 296             updatePropagationDisabled = false;
 297         }
 298     }
 299
 300     public class Header extends BaseItem {
 301         private final TemplateDetailsHeaderBinding b;
 302         boolean updatePropagationDisabled = false;
 303         public Header(@NonNull TemplateDetailsHeaderBinding binding) {
 304             super(binding.getRoot());
 305             b = binding;
 306
 307             TextWatcher templateNameWatcher = new TextWatcher() {
 308                 @Override
 309                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 310                 @Override
 311                 public void onTextChanged(CharSequence s, int start, int before, int count) {}
 312                 @Override
 313                 public void afterTextChanged(Editable s) {
 314                     if (updatePropagationDisabled)
 315                         return;
 316
 317                     final TemplateDetailsItem.Header header = getItem();
 318                     Logger.debug(D_TEMPLATE_UI,
 319                             "Storing changed template name " + s + "; header=" + header);
 320                     header.setName(String.valueOf(s));
 321                 }
 322             };
 323             b.templateName.addTextChangedListener(templateNameWatcher);
 324
 325             TextWatcher patternWatcher = new TextWatcher() {
 326                 @Override
 327                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 328                 @Override
 329                 public void onTextChanged(CharSequence s, int start, int before, int count) {}
 330                 @Override
 331                 public void afterTextChanged(Editable s) {
 332                     if (updatePropagationDisabled)
 333                         return;
 334
 335                     final TemplateDetailsItem.Header header = getItem();
 336                     Logger.debug(D_TEMPLATE_UI,
 337                             "Storing changed pattern " + s + "; header=" + header);
 338                     header.setPattern(String.valueOf(s));
 339
 340                     checkPatternError(header);
 341                 }
 342             };
 343             b.pattern.addTextChangedListener(patternWatcher);
 344
 345             TextWatcher testTextWatcher = new TextWatcher() {
 346                 @Override
 347                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 348                 @Override
 349                 public void onTextChanged(CharSequence s, int start, int before, int count) {}
 350                 @Override
 351                 public void afterTextChanged(Editable s) {
 352                     if (updatePropagationDisabled)
 353                         return;
 354
 355                     final TemplateDetailsItem.Header header = getItem();
 356                     Logger.debug(D_TEMPLATE_UI,
 357                             "Storing changed test text " + s + "; header=" + header);
 358                     header.setTestText(String.valueOf(s));
 359
 360                     checkPatternError(header);
 361                 }
 362             };
 363             b.testText.addTextChangedListener(testTextWatcher);
 364
 365             TextWatcher transactionDescriptionWatcher = new TextWatcher() {
 366                 @Override
 367                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 368                 }
 369                 @Override
 370                 public void onTextChanged(CharSequence s, int start, int before, int count) {
 371                 }
 372                 @Override
 373                 public void afterTextChanged(Editable s) {
 374                     if (updatePropagationDisabled)
 375                         return;
 376
 377                     final TemplateDetailsItem.Header header = getItem();
 378                     Logger.debug(D_TEMPLATE_UI,
 379                             "Storing changed transaction description " + s + "; header=" + header);
 380                     header.setTransactionDescription(String.valueOf(s));
 381                 }
 382             };
 383             b.transactionDescription.addTextChangedListener(transactionDescriptionWatcher);
 384             TextWatcher transactionCommentWatcher = new TextWatcher() {
 385                 @Override
 386                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 387                 }
 388                 @Override
 389                 public void onTextChanged(CharSequence s, int start, int before, int count) {
 390                 }
 391                 @Override
 392                 public void afterTextChanged(Editable s) {
 393                     if (updatePropagationDisabled)
 394                         return;
 395
 396                     final TemplateDetailsItem.Header header = getItem();
 397                     Logger.debug(D_TEMPLATE_UI,
 398                             "Storing changed transaction description " + s + "; header=" + header);
 399                     header.setTransactionComment(String.valueOf(s));
 400                 }
 401             };
 402             b.transactionComment.addTextChangedListener(transactionCommentWatcher);
 403         }
 404         @NotNull
 405         private TemplateDetailsItem.Header getItem() {
 406             int pos = getAdapterPosition();
 407             return differ.getCurrentList()
 408                          .get(pos)
 409                          .asHeaderItem();
 410         }
 411         private void selectHeaderDetailSource(View v, HeaderDetail detail) {
 412             TemplateDetailsItem.Header header = getItem();
 413             Logger.debug(D_TEMPLATE_UI, "header is " + header);
 414             TemplateDetailSourceSelectorFragment sel =
 415                     TemplateDetailSourceSelectorFragment.newInstance(1, header.getPattern(),
 416                             header.getTestText());
 417             sel.setOnSourceSelectedListener((literal, group) -> {
 418                 if (literal) {
 419                     switch (detail) {
 420                         case DESCRIPTION:
 421                             header.switchToLiteralTransactionDescription();
 422                             break;
 423                         case COMMENT:
 424                             header.switchToLiteralTransactionComment();
 425                             break;
 426                         case DATE_YEAR:
 427                             header.switchToLiteralDateYear();
 428                             break;
 429                         case DATE_MONTH:
 430                             header.switchToLiteralDateMonth();
 431                             break;
 432                         case DATE_DAY:
 433                             header.switchToLiteralDateDay();
 434                             break;
 435                         default:
 436                             throw new IllegalStateException("Unexpected detail " + detail);
 437                     }
 438                 }
 439                 else {
 440                     switch (detail) {
 441                         case DESCRIPTION:
 442                             header.setTransactionDescriptionMatchGroup(group);
 443                             break;
 444                         case COMMENT:
 445                             header.setTransactionCommentMatchGroup(group);
 446                             break;
 447                         case DATE_YEAR:
 448                             header.setDateYearMatchGroup(group);
 449                             break;
 450                         case DATE_MONTH:
 451                             header.setDateMonthMatchGroup(group);
 452                             break;
 453                         case DATE_DAY:
 454                             header.setDateDayMatchGroup(group);
 455                             break;
 456                         default:
 457                             throw new IllegalStateException("Unexpected detail " + detail);
 458                     }
 459                 }
 460
 461                 notifyItemChanged(getAdapterPosition());
 462             });
 463             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 464             sel.show(activity.getSupportFragmentManager(), "template-details-source-selector");
 465         }
 466         @Override
 467         void bind(TemplateDetailsItem item) {
 468             TemplateDetailsItem.Header header = item.asHeaderItem();
 469             Logger.debug(D_TEMPLATE_UI, "Binding to header " + header);
 470
 471             disableUpdatePropagation();
 472             try {
 473                 String groupNoText = b.getRoot()
 474                                       .getResources()
 475                                       .getString(R.string.template_item_match_group_source);
 476
 477                 b.templateName.setText(header.getName());
 478                 b.pattern.setText(header.getPattern());
 479                 b.testText.setText(header.getTestText());
 480
 481                 if (header.hasLiteralDateYear()) {
 482                     b.templateDetailsYearSource.setText(R.string.template_details_source_literal);
 483                     final Integer dateYear = header.getDateYear();
 484                     b.templateDetailsDateYear.setText(
 485                             (dateYear == null) ? null : String.valueOf(dateYear));
 486                     b.templateDetailsDateYearLayout.setVisibility(View.VISIBLE);
 487                 }
 488                 else {
 489                     b.templateDetailsDateYearLayout.setVisibility(View.GONE);
 490                     b.templateDetailsYearSource.setText(
 491                             String.format(Locale.US, groupNoText, header.getDateYearMatchGroup(),
 492                                     getMatchGroupText(header.getDateYearMatchGroup())));
 493                 }
 494                 b.templateDetailsYearSourceLabel.setOnClickListener(
 495                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_YEAR));
 496                 b.templateDetailsYearSource.setOnClickListener(
 497                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_YEAR));
 498
 499                 if (header.hasLiteralDateMonth()) {
 500                     b.templateDetailsMonthSource.setText(R.string.template_details_source_literal);
 501                     final Integer dateMonth = header.getDateMonth();
 502                     b.templateDetailsDateMonth.setText(
 503                             (dateMonth == null) ? null : String.valueOf(dateMonth));
 504                     b.templateDetailsDateMonthLayout.setVisibility(View.VISIBLE);
 505                 }
 506                 else {
 507                     b.templateDetailsDateMonthLayout.setVisibility(View.GONE);
 508                     b.templateDetailsMonthSource.setText(
 509                             String.format(Locale.US, groupNoText, header.getDateMonthMatchGroup(),
 510                                     getMatchGroupText(header.getDateMonthMatchGroup())));
 511                 }
 512                 b.templateDetailsMonthSourceLabel.setOnClickListener(
 513                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_MONTH));
 514                 b.templateDetailsMonthSource.setOnClickListener(
 515                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_MONTH));
 516
 517                 if (header.hasLiteralDateDay()) {
 518                     b.templateDetailsDaySource.setText(R.string.template_details_source_literal);
 519                     final Integer dateDay = header.getDateDay();
 520                     b.templateDetailsDateDay.setText(
 521                             (dateDay == null) ? null : String.valueOf(dateDay));
 522                     b.templateDetailsDateDayLayout.setVisibility(View.VISIBLE);
 523                 }
 524                 else {
 525                     b.templateDetailsDateDayLayout.setVisibility(View.GONE);
 526                     b.templateDetailsDaySource.setText(
 527                             String.format(Locale.US, groupNoText, header.getDateDayMatchGroup(),
 528                                     getMatchGroupText(header.getDateDayMatchGroup())));
 529                 }
 530                 b.templateDetailsDaySourceLabel.setOnClickListener(
 531                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_DAY));
 532                 b.templateDetailsDaySource.setOnClickListener(
 533                         v -> selectHeaderDetailSource(v, HeaderDetail.DATE_DAY));
 534
 535                 if (header.hasLiteralTransactionDescription()) {
 536                     b.templateTransactionDescriptionSource.setText(
 537                             R.string.template_details_source_literal);
 538                     b.transactionDescription.setText(header.getTransactionDescription());
 539                     b.transactionDescriptionLayout.setVisibility(View.VISIBLE);
 540                 }
 541                 else {
 542                     b.transactionDescriptionLayout.setVisibility(View.GONE);
 543                     b.templateTransactionDescriptionSource.setText(
 544                             String.format(Locale.US, groupNoText,
 545                                     header.getTransactionDescriptionMatchGroup(), getMatchGroupText(
 546                                             header.getTransactionDescriptionMatchGroup())));
 547
 548                 }
 549                 b.templateTransactionDescriptionSourceLabel.setOnClickListener(
 550                         v -> selectHeaderDetailSource(v, HeaderDetail.DESCRIPTION));
 551                 b.templateTransactionDescriptionSource.setOnClickListener(
 552                         v -> selectHeaderDetailSource(v, HeaderDetail.DESCRIPTION));
 553
 554                 if (header.hasLiteralTransactionComment()) {
 555                     b.templateTransactionCommentSource.setText(
 556                             R.string.template_details_source_literal);
 557                     b.transactionComment.setText(header.getTransactionComment());
 558                     b.transactionCommentLayout.setVisibility(View.VISIBLE);
 559                 }
 560                 else {
 561                     b.transactionCommentLayout.setVisibility(View.GONE);
 562                     b.templateTransactionCommentSource.setText(String.format(Locale.US, groupNoText,
 563                             header.getTransactionCommentMatchGroup(),
 564                             getMatchGroupText(header.getTransactionCommentMatchGroup())));
 565
 566                 }
 567                 b.templateTransactionCommentSourceLabel.setOnClickListener(
 568                         v -> selectHeaderDetailSource(v, HeaderDetail.COMMENT));
 569                 b.templateTransactionCommentSource.setOnClickListener(
 570                         v -> selectHeaderDetailSource(v, HeaderDetail.COMMENT));
 571
 572                 b.templateDetailsHeadScanQrButton.setOnClickListener(this::scanTestQR);
 573
 574                 checkPatternError(header);
 575             }
 576             finally {
 577                 enableUpdatePropagation();
 578             }
 579         }
 580         private void checkPatternError(TemplateDetailsItem.Header item) {
 581             if (item.getPatternError() != null) {
 582                 b.patternLayout.setError(item.getPatternError());
 583                 b.patternHintTitle.setVisibility(View.GONE);
 584                 b.patternHintText.setVisibility(View.GONE);
 585             }
 586             else {
 587                 b.patternLayout.setError(null);
 588                 if (item.testMatch() != null) {
 589                     b.patternHintText.setText(item.testMatch());
 590                     b.patternHintTitle.setVisibility(View.VISIBLE);
 591                     b.patternHintText.setVisibility(View.VISIBLE);
 592                 }
 593                 else {
 594                     b.patternLayout.setError(null);
 595                     b.patternHintTitle.setVisibility(View.GONE);
 596                     b.patternHintText.setVisibility(View.GONE);
 597                 }
 598             }
 599
 600         }
 601         private void scanTestQR(View view) {
 602             QRScanCapableFragment.triggerQRScan();
 603         }
 604     }
 605
 606     public class AccountRow extends BaseItem {
 607         private final TemplateDetailsAccountBinding b;
 608         public AccountRow(@NonNull TemplateDetailsAccountBinding binding) {
 609             super(binding.getRoot());
 610             b = binding;
 611
 612             TextWatcher accountNameWatcher = new TextWatcher() {
 613                 @Override
 614                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 615                 @Override
 616                 public void onTextChanged(CharSequence s, int start, int before, int count) {}
 617                 @Override
 618                 public void afterTextChanged(Editable s) {
 619                     if (updatePropagationDisabled)
 620                         return;
 621
 622                     TemplateDetailsItem.AccountRow accRow = getItem();
 623                     Logger.debug(D_TEMPLATE_UI,
 624                             "Storing changed account name " + s + "; accRow=" + accRow);
 625                     accRow.setAccountName(String.valueOf(s));
 626                 }
 627             };
 628             b.templateDetailsAccountName.addTextChangedListener(accountNameWatcher);
 629             b.templateDetailsAccountName.setAdapter(new AccountAutocompleteAdapter(b.getRoot()
 630                                                                                     .getContext()));
 631             b.templateDetailsAccountName.setOnItemClickListener(
 632                     (parent, view, position, id) -> b.templateDetailsAccountName.setText(
 633                             ((TextView) view).getText()));
 634             TextWatcher accountCommentWatcher = new TextWatcher() {
 635                 @Override
 636                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 637                 @Override
 638                 public void onTextChanged(CharSequence s, int start, int before, int count) {}
 639                 @Override
 640                 public void afterTextChanged(Editable s) {
 641                     if (updatePropagationDisabled)
 642                         return;
 643
 644                     TemplateDetailsItem.AccountRow accRow = getItem();
 645                     Logger.debug(D_TEMPLATE_UI,
 646                             "Storing changed account comment " + s + "; accRow=" + accRow);
 647                     accRow.setAccountComment(String.valueOf(s));
 648                 }
 649             };
 650             b.templateDetailsAccountComment.addTextChangedListener(accountCommentWatcher);
 651
 652             b.templateDetailsAccountAmount.addTextChangedListener(new TextWatcher() {
 653                 @Override
 654                 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 655
 656                 }
 657                 @Override
 658                 public void onTextChanged(CharSequence s, int start, int before, int count) {
 659
 660                 }
 661                 @Override
 662                 public void afterTextChanged(Editable s) {
 663                     if (updatePropagationDisabled)
 664                         return;
 665
 666                     TemplateDetailsItem.AccountRow accRow = getItem();
 667
 668                     String str = String.valueOf(s);
 669                     if (Misc.emptyIsNull(str) == null) {
 670                         accRow.setAmount(null);
 671                     }
 672                     else {
 673                         try {
 674                             final float amount = Data.parseNumber(str);
 675                             accRow.setAmount(amount);
 676                             b.templateDetailsAccountAmountLayout.setError(null);
 677
 678                             Logger.debug(D_TEMPLATE_UI, String.format(Locale.US,
 679                                     "Storing changed account amount %s [%4.2f]; accRow=%s", s,
 680                                     amount, accRow));
 681                         }
 682                         catch (NumberFormatException | ParseException e) {
 683                             b.templateDetailsAccountAmountLayout.setError("!");
 684                         }
 685                     }
 686                 }
 687             });
 688             b.templateDetailsAccountAmount.setOnFocusChangeListener((v, hasFocus) -> {
 689                 if (hasFocus)
 690                     return;
 691
 692                 TemplateDetailsItem.AccountRow accRow = getItem();
 693                 if (!accRow.hasLiteralAmount())
 694                     return;
 695                 Float amt = accRow.getAmount();
 696                 if (amt == null)
 697                     return;
 698
 699                 b.templateDetailsAccountAmount.setText(Data.formatNumber(amt));
 700             });
 701
 702             b.negateAmountSwitch.setOnCheckedChangeListener((buttonView, isChecked) -> {
 703                 if (updatePropagationDisabled)
 704                     return;
 705
 706                 getItem().setNegateAmount(isChecked);
 707                 b.templateDetailsNegateAmountText.setText(
 708                         isChecked ? R.string.template_account_change_amount_sign
 709                                   : R.string.template_account_keep_amount_sign);
 710             });
 711             final View.OnClickListener negLabelClickListener =
 712                     (view) -> b.negateAmountSwitch.toggle();
 713             b.templateDetailsNegateAmountLabel.setOnClickListener(negLabelClickListener);
 714             b.templateDetailsNegateAmountText.setOnClickListener(negLabelClickListener);
 715             manageAccountLabelDrag();
 716         }
 717         @SuppressLint("ClickableViewAccessibility")
 718         public void manageAccountLabelDrag() {
 719             b.patternAccountLabel.setOnTouchListener((v, event) -> {
 720                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 721                     itemTouchHelper.startDrag(this);
 722                 }
 723                 return false;
 724             });
 725         }
 726         @Override
 727         void bind(TemplateDetailsItem item) {
 728             disableUpdatePropagation();
 729             try {
 730                 final Resources resources = b.getRoot()
 731                                              .getResources();
 732                 String groupNoText = resources.getString(R.string.template_item_match_group_source);
 733
 734                 TemplateDetailsItem.AccountRow accRow = item.asAccountRowItem();
 735                 b.patternAccountLabel.setText(String.format(Locale.US,
 736                         resources.getString(R.string.template_details_account_row_label),
 737                         accRow.getPosition()));
 738                 if (accRow.hasLiteralAccountName()) {
 739                     b.templateDetailsAccountNameLayout.setVisibility(View.VISIBLE);
 740                     b.templateDetailsAccountName.setText(accRow.getAccountName());
 741                     b.templateDetailsAccountNameSource.setText(
 742                             R.string.template_details_source_literal);
 743                 }
 744                 else {
 745                     b.templateDetailsAccountNameLayout.setVisibility(View.GONE);
 746                     b.templateDetailsAccountNameSource.setText(
 747                             String.format(Locale.US, groupNoText, accRow.getAccountNameMatchGroup(),
 748                                     getMatchGroupText(accRow.getAccountNameMatchGroup())));
 749                 }
 750
 751                 if (accRow.hasLiteralAccountComment()) {
 752                     b.templateDetailsAccountCommentLayout.setVisibility(View.VISIBLE);
 753                     b.templateDetailsAccountComment.setText(accRow.getAccountComment());
 754                     b.templateDetailsAccountCommentSource.setText(
 755                             R.string.template_details_source_literal);
 756                 }
 757                 else {
 758                     b.templateDetailsAccountCommentLayout.setVisibility(View.GONE);
 759                     b.templateDetailsAccountCommentSource.setText(
 760                             String.format(Locale.US, groupNoText,
 761                                     accRow.getAccountCommentMatchGroup(),
 762                                     getMatchGroupText(accRow.getAccountCommentMatchGroup())));
 763                 }
 764
 765                 if (accRow.hasLiteralAmount()) {
 766                     b.templateDetailsAccountAmountSource.setText(
 767                             R.string.template_details_source_literal);
 768                     b.templateDetailsAccountAmount.setVisibility(View.VISIBLE);
 769                     Float amt = accRow.getAmount();
 770                     b.templateDetailsAccountAmount.setText((amt == null) ? null : String.format(
 771                             Data.locale.getValue(), "%,4.2f", (accRow.getAmount())));
 772                     b.negateAmountSwitch.setVisibility(View.GONE);
 773                     b.templateDetailsNegateAmountLabel.setVisibility(View.GONE);
 774                     b.templateDetailsNegateAmountText.setVisibility(View.GONE);
 775                 }
 776                 else {
 777                     b.templateDetailsAccountAmountSource.setText(
 778                             String.format(Locale.US, groupNoText, accRow.getAmountMatchGroup(),
 779                                     getMatchGroupText(accRow.getAmountMatchGroup())));
 780                     b.templateDetailsAccountAmountLayout.setVisibility(View.GONE);
 781                     b.negateAmountSwitch.setVisibility(View.VISIBLE);
 782                     b.negateAmountSwitch.setChecked(accRow.isNegateAmount());
 783                     b.templateDetailsNegateAmountText.setText(
 784                             accRow.isNegateAmount() ? R.string.template_account_change_amount_sign
 785                                                     : R.string.template_account_keep_amount_sign);
 786                     b.templateDetailsNegateAmountLabel.setVisibility(View.VISIBLE);
 787                     b.templateDetailsNegateAmountText.setVisibility(View.VISIBLE);
 788                 }
 789
 790                 b.templateAccountNameSourceLabel.setOnClickListener(
 791                         v -> selectAccountRowDetailSource(v, AccDetail.ACCOUNT));
 792                 b.templateDetailsAccountNameSource.setOnClickListener(
 793                         v -> selectAccountRowDetailSource(v, AccDetail.ACCOUNT));
 794                 b.templateAccountCommentSourceLabel.setOnClickListener(
 795                         v -> selectAccountRowDetailSource(v, AccDetail.COMMENT));
 796                 b.templateDetailsAccountCommentSource.setOnClickListener(
 797                         v -> selectAccountRowDetailSource(v, AccDetail.COMMENT));
 798                 b.templateAccountAmountSourceLabel.setOnClickListener(
 799                         v -> selectAccountRowDetailSource(v, AccDetail.AMOUNT));
 800                 b.templateDetailsAccountAmountSource.setOnClickListener(
 801                         v -> selectAccountRowDetailSource(v, AccDetail.AMOUNT));
 802             }
 803             finally {
 804                 enableUpdatePropagation();
 805             }
 806         }
 807         private @NotNull TemplateDetailsItem.AccountRow getItem() {
 808             return differ.getCurrentList()
 809                          .get(getAdapterPosition())
 810                          .asAccountRowItem();
 811         }
 812         private void selectAccountRowDetailSource(View v, AccDetail detail) {
 813             TemplateDetailsItem.AccountRow accRow = getItem();
 814             final TemplateDetailsItem.Header header = getHeader();
 815             Logger.debug(D_TEMPLATE_UI, "header is " + header);
 816             TemplateDetailSourceSelectorFragment sel =
 817                     TemplateDetailSourceSelectorFragment.newInstance(1, header.getPattern(),
 818                             header.getTestText());
 819             sel.setOnSourceSelectedListener((literal, group) -> {
 820                 if (literal) {
 821                     switch (detail) {
 822                         case ACCOUNT:
 823                             accRow.switchToLiteralAccountName();
 824                             break;
 825                         case COMMENT:
 826                             accRow.switchToLiteralAccountComment();
 827                             break;
 828                         case AMOUNT:
 829                             accRow.switchToLiteralAmount();
 830                             break;
 831                         default:
 832                             throw new IllegalStateException("Unexpected detail " + detail);
 833                     }
 834                 }
 835                 else {
 836                     switch (detail) {
 837                         case ACCOUNT:
 838                             accRow.setAccountNameMatchGroup(group);
 839                             break;
 840                         case COMMENT:
 841                             accRow.setAccountCommentMatchGroup(group);
 842                             break;
 843                         case AMOUNT:
 844                             accRow.setAmountMatchGroup(group);
 845                             break;
 846                         default:
 847                             throw new IllegalStateException("Unexpected detail " + detail);
 848                     }
 849                 }
 850
 851                 notifyItemChanged(getAdapterPosition());
 852             });
 853             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 854             sel.show(activity.getSupportFragmentManager(), "template-details-source-selector");
 855         }
 856     }
 857 }