app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionItemHolder.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.new_transaction;
  19
  20 import android.annotation.SuppressLint;
  21 import android.graphics.Typeface;
  22 import android.text.Editable;
  23 import android.text.TextUtils;
  24 import android.text.TextWatcher;
  25 import android.view.Gravity;
  26 import android.view.View;
  27 import android.view.inputmethod.EditorInfo;
  28 import android.widget.EditText;
  29 import android.widget.SimpleCursorAdapter;
  30 import android.widget.TextView;
  31
  32 import androidx.annotation.ColorInt;
  33 import androidx.annotation.NonNull;
  34 import androidx.constraintlayout.widget.ConstraintLayout;
  35 import androidx.recyclerview.widget.RecyclerView;
  36
  37 import net.ktnx.mobileledger.R;
  38 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  39 import net.ktnx.mobileledger.databinding.NewTransactionRowBinding;
  40 import net.ktnx.mobileledger.db.AccountAutocompleteAdapter;
  41 import net.ktnx.mobileledger.model.Currency;
  42 import net.ktnx.mobileledger.model.Data;
  43 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  44 import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
  45 import net.ktnx.mobileledger.ui.DatePickerFragment;
  46 import net.ktnx.mobileledger.ui.TextViewClearHelper;
  47 import net.ktnx.mobileledger.utils.DimensionUtils;
  48 import net.ktnx.mobileledger.utils.Logger;
  49 import net.ktnx.mobileledger.utils.MLDB;
  50 import net.ktnx.mobileledger.utils.Misc;
  51 import net.ktnx.mobileledger.utils.SimpleDate;
  52
  53 import java.text.DecimalFormatSymbols;
  54 import java.text.ParseException;
  55 import java.util.Objects;
  56
  57 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  58         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  59     private final String decimalDot = ".";
  60     private final MobileLedgerProfile mProfile;
  61     private final NewTransactionRowBinding b;
  62     private final NewTransactionItemsAdapter mAdapter;
  63     private boolean ignoreFocusChanges = false;
  64     private String decimalSeparator;
  65     private boolean inUpdate = false;
  66     private boolean syncingData = false;
  67     //TODO multiple amounts with different currencies per posting?
  68     NewTransactionItemHolder(@NonNull NewTransactionRowBinding b,
  69                              NewTransactionItemsAdapter adapter) {
  70         super(b.getRoot());
  71         this.b = b;
  72         this.mAdapter = adapter;
  73         new TextViewClearHelper().attachToTextView(b.comment);
  74
  75         b.newTransactionDescription.setNextFocusForwardId(View.NO_ID);
  76         b.accountRowAccName.setNextFocusForwardId(View.NO_ID);
  77         b.accountRowAccAmounts.setNextFocusForwardId(View.NO_ID); // magic!
  78
  79         b.newTransactionDate.setOnClickListener(v -> pickTransactionDate());
  80
  81         b.accountCommentButton.setOnClickListener(v -> {
  82             b.comment.setVisibility(View.VISIBLE);
  83             b.comment.requestFocus();
  84         });
  85
  86         b.transactionCommentButton.setOnClickListener(v -> {
  87             b.transactionComment.setVisibility(View.VISIBLE);
  88             b.transactionComment.requestFocus();
  89         });
  90
  91         mProfile = Data.getProfile();
  92
  93         @SuppressLint("DefaultLocale") View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
  94             final int id = v.getId();
  95             if (hasFocus) {
  96                 boolean wasSyncing = syncingData;
  97                 syncingData = true;
  98                 try {
  99                     final int pos = getAdapterPosition();
 100                     if (id == R.id.account_row_acc_name) {
 101                         adapter.noteFocusIsOnAccount(pos);
 102                     }
 103                     else if (id == R.id.account_row_acc_amounts) {
 104                         adapter.noteFocusIsOnAmount(pos);
 105                     }
 106                     else if (id == R.id.comment) {
 107                         adapter.noteFocusIsOnComment(pos);
 108                     }
 109                     else if (id == R.id.transaction_comment) {
 110                         adapter.noteFocusIsOnTransactionComment(pos);
 111                     }
 112                     else if (id == R.id.new_transaction_description) {
 113                         adapter.noteFocusIsOnDescription(pos);
 114                     }
 115                     else
 116                         throw new IllegalStateException("Where is the focus?");
 117                 }
 118                 finally {
 119                     syncingData = wasSyncing;
 120                 }
 121             }
 122             else {  // lost focus
 123                 if (id == R.id.account_row_acc_amounts) {
 124                     try {
 125                         String input = String.valueOf(b.accountRowAccAmounts.getText());
 126                         input = input.replace(decimalSeparator, decimalDot);
 127                         b.accountRowAccAmounts.setText(
 128                                 String.format("%4.2f", Float.parseFloat(input)));
 129                     }
 130                     catch (NumberFormatException ex) {
 131                         // ignored
 132                     }
 133                 }
 134             }
 135
 136             if (id == R.id.comment) {
 137                 commentFocusChanged(b.comment, hasFocus);
 138             }
 139             else if (id == R.id.transaction_comment) {
 140                 commentFocusChanged(b.transactionComment, hasFocus);
 141             }
 142         };
 143
 144         b.newTransactionDescription.setOnFocusChangeListener(focusMonitor);
 145         b.accountRowAccName.setOnFocusChangeListener(focusMonitor);
 146         b.accountRowAccAmounts.setOnFocusChangeListener(focusMonitor);
 147         b.comment.setOnFocusChangeListener(focusMonitor);
 148         b.transactionComment.setOnFocusChangeListener(focusMonitor);
 149
 150         NewTransactionActivity activity = (NewTransactionActivity) b.getRoot()
 151                                                                     .getContext();
 152
 153         MLDB.hookAutocompletionAdapter(activity, b.newTransactionDescription,
 154                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, activity, mProfile);
 155         b.accountRowAccName.setAdapter(new AccountAutocompleteAdapter(b.getRoot()
 156                                                                        .getContext(), mProfile));
 157
 158         decimalSeparator = "";
 159         Data.locale.observe(activity, locale -> decimalSeparator = String.valueOf(
 160                 DecimalFormatSymbols.getInstance(locale)
 161                                     .getMonetaryDecimalSeparator()));
 162
 163         final TextWatcher tw = new TextWatcher() {
 164             @Override
 165             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 166             }
 167
 168             @Override
 169             public void onTextChanged(CharSequence s, int start, int before, int count) {
 170             }
 171
 172             @Override
 173             public void afterTextChanged(Editable s) {
 174 //                debug("input", "text changed");
 175                 if (inUpdate)
 176                     return;
 177
 178                 Logger.debug("textWatcher", "calling syncData()");
 179                 if (syncData()) {
 180                     Logger.debug("textWatcher",
 181                             "syncData() returned, checking if transaction is submittable");
 182                     adapter.model.checkTransactionSubmittable(null);
 183                 }
 184                 Logger.debug("textWatcher", "done");
 185             }
 186         };
 187         final TextWatcher amountWatcher = new TextWatcher() {
 188             @Override
 189             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 190             @Override
 191             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 192             @Override
 193             public void afterTextChanged(Editable s) {
 194                 checkAmountValid(s.toString());
 195
 196                 if (syncData())
 197                     adapter.model.checkTransactionSubmittable(null);
 198             }
 199         };
 200         b.newTransactionDescription.addTextChangedListener(tw);
 201         monitorComment(b.transactionComment);
 202         b.accountRowAccName.addTextChangedListener(tw);
 203         monitorComment(b.comment);
 204         b.accountRowAccAmounts.addTextChangedListener(amountWatcher);
 205
 206         b.currencyButton.setOnClickListener(v -> {
 207             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 208             cpf.showPositionAndPadding();
 209             cpf.setOnCurrencySelectedListener(
 210                     c -> adapter.setItemCurrency(getAdapterPosition(), c.getName()));
 211             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 212         });
 213
 214         commentFocusChanged(b.transactionComment, false);
 215         commentFocusChanged(b.comment, false);
 216
 217         adapter.model.getFocusInfo()
 218                      .observe(activity, focusInfo -> {
 219                          if (ignoreFocusChanges) {
 220                              Logger.debug("new-trans", "Ignoring focus change");
 221                              return;
 222                          }
 223                          ignoreFocusChanges = true;
 224                          try {
 225                              if (((focusInfo == null) || (focusInfo.element == null) ||
 226                                   focusInfo.position != getAdapterPosition()) ||
 227                                  itemView.hasFocus())
 228                                  return;
 229
 230                              NewTransactionModel.Item item = getItem();
 231                              if (item instanceof NewTransactionModel.TransactionHead) {
 232                                  NewTransactionModel.TransactionHead head =
 233                                          item.toTransactionHead();
 234                                  // bad idea - double pop-up, and not really necessary.
 235                                  // the user can tap the input to get the calendar
 236                                  //if (!tvDate.hasFocus()) tvDate.requestFocus();
 237                                  switch (focusInfo.element) {
 238                                      case TransactionComment:
 239                                          b.transactionComment.setVisibility(View.VISIBLE);
 240                                          b.transactionComment.requestFocus();
 241                                          break;
 242                                      case Description:
 243                                          boolean focused =
 244                                                  b.newTransactionDescription.requestFocus();
 245 //                            tvDescription.dismissDropDown();
 246                                          if (focused)
 247                                              Misc.showSoftKeyboard(
 248                                                      (NewTransactionActivity) b.getRoot()
 249                                                                                .getContext());
 250                                          break;
 251                                  }
 252                              }
 253                              else if (item instanceof NewTransactionModel.TransactionAccount) {
 254                                  NewTransactionModel.TransactionAccount acc =
 255                                          item.toTransactionAccount();
 256                                  switch (focusInfo.element) {
 257                                      case Amount:
 258                                          b.accountRowAccAmounts.requestFocus();
 259                                          break;
 260                                      case Comment:
 261                                          b.comment.setVisibility(View.VISIBLE);
 262                                          b.comment.requestFocus();
 263                                          break;
 264                                      case Account:
 265                                          boolean focused = b.accountRowAccName.requestFocus();
 266 //                                         b.accountRowAccName.dismissDropDown();
 267                                          if (focused)
 268                                              Misc.showSoftKeyboard(
 269                                                      (NewTransactionActivity) b.getRoot()
 270                                                                                .getContext());
 271                                          break;
 272                                  }
 273                              }
 274                          }
 275                          finally {
 276                              ignoreFocusChanges = false;
 277                          }
 278                      });
 279
 280         Data.currencyGap.observe(activity,
 281                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 282                         hasGap));
 283
 284         Data.currencySymbolPosition.observe(activity,
 285                 position -> updateCurrencyPositionAndPadding(position,
 286                         Data.currencyGap.getValue()));
 287
 288         adapter.model.getShowCurrency()
 289                      .observe(activity, showCurrency -> {
 290                          if (showCurrency) {
 291                              b.currency.setVisibility(View.VISIBLE);
 292                              b.currencyButton.setVisibility(View.VISIBLE);
 293                              b.currency.setText(mProfile.getDefaultCommodity());
 294                          }
 295                          else {
 296                              b.currency.setVisibility(View.GONE);
 297                              b.currencyButton.setVisibility(View.GONE);
 298                              b.currency.setText(null);
 299                          }
 300                      });
 301
 302         adapter.model.getShowComments()
 303                      .observe(activity, show -> {
 304                          ConstraintLayout.LayoutParams amountLayoutParams =
 305                                  (ConstraintLayout.LayoutParams) b.amountLayout.getLayoutParams();
 306                          ConstraintLayout.LayoutParams accountParams =
 307                                  (ConstraintLayout.LayoutParams) b.accountRowAccName.getLayoutParams();
 308
 309                          if (show) {
 310                              accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
 311                              accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 312
 313                              amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
 314                              amountLayoutParams.topToBottom = b.accountRowAccName.getId();
 315
 316                              b.commentLayout.setVisibility(View.VISIBLE);
 317                          }
 318                          else {
 319                              accountParams.endToStart = b.amountLayout.getId();
 320                              accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 321
 322                              amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
 323                              amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
 324
 325                              b.commentLayout.setVisibility(View.GONE);
 326                          }
 327
 328                          b.accountRowAccName.setLayoutParams(accountParams);
 329                          b.amountLayout.setLayoutParams(amountLayoutParams);
 330
 331                          b.transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
 332                      });
 333     }
 334     public void checkAmountValid(String s) {
 335         boolean valid = true;
 336         try {
 337             if (s.length() > 0) {
 338                 float ignored = Float.parseFloat(s.replace(decimalSeparator, decimalDot));
 339             }
 340         }
 341         catch (NumberFormatException ex) {
 342             valid = false;
 343         }
 344
 345         displayAmountValidity(valid);
 346     }
 347     private void displayAmountValidity(boolean valid) {
 348         b.accountRowAccAmounts.setCompoundDrawablesRelativeWithIntrinsicBounds(
 349                 valid ? 0 : R.drawable.ic_error_outline_black_24dp, 0, 0, 0);
 350         b.accountRowAccAmounts.setMinEms(valid ? 4 : 5);
 351     }
 352     private void monitorComment(EditText editText) {
 353         editText.addTextChangedListener(new TextWatcher() {
 354             @Override
 355             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 356             }
 357             @Override
 358             public void onTextChanged(CharSequence s, int start, int before, int count) {
 359             }
 360             @Override
 361             public void afterTextChanged(Editable s) {
 362 //                debug("input", "text changed");
 363                 if (inUpdate)
 364                     return;
 365
 366                 Logger.debug("textWatcher", "calling syncData()");
 367                 syncData();
 368                 Logger.debug("textWatcher",
 369                         "syncData() returned, checking if transaction is submittable");
 370                 styleComment(editText, s.toString());
 371                 Logger.debug("textWatcher", "done");
 372             }
 373         });
 374     }
 375     private void commentFocusChanged(TextView textView, boolean hasFocus) {
 376         @ColorInt int textColor;
 377         textColor = b.dummyText.getTextColors()
 378                                .getDefaultColor();
 379         if (hasFocus) {
 380             textView.setTypeface(null, Typeface.NORMAL);
 381             textView.setHint(R.string.transaction_account_comment_hint);
 382         }
 383         else {
 384             int alpha = (textColor >> 24 & 0xff);
 385             alpha = 3 * alpha / 4;
 386             textColor = (alpha << 24) | (0x00ffffff & textColor);
 387             textView.setTypeface(null, Typeface.ITALIC);
 388             textView.setHint("");
 389             if (TextUtils.isEmpty(textView.getText())) {
 390                 textView.setVisibility(View.INVISIBLE);
 391             }
 392         }
 393         textView.setTextColor(textColor);
 394
 395     }
 396     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 397         ConstraintLayout.LayoutParams amountLP =
 398                 (ConstraintLayout.LayoutParams) b.accountRowAccAmounts.getLayoutParams();
 399         ConstraintLayout.LayoutParams currencyLP =
 400                 (ConstraintLayout.LayoutParams) b.currency.getLayoutParams();
 401
 402         if (position == Currency.Position.before) {
 403             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 404             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 405
 406             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 407             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 408             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 409             amountLP.startToEnd = b.currency.getId();
 410
 411             b.currency.setGravity(Gravity.END);
 412         }
 413         else {
 414             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 415             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 416
 417             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 418             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 419             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 420             amountLP.endToStart = b.currency.getId();
 421
 422             b.currency.setGravity(Gravity.START);
 423         }
 424
 425         amountLP.resolveLayoutDirection(b.accountRowAccAmounts.getLayoutDirection());
 426         currencyLP.resolveLayoutDirection(b.currency.getLayoutDirection());
 427
 428         b.accountRowAccAmounts.setLayoutParams(amountLP);
 429         b.currency.setLayoutParams(currencyLP);
 430
 431         // distance between the amount and the currency symbol
 432         int gapSize = DimensionUtils.sp2px(b.currency.getContext(), 5);
 433
 434         if (position == Currency.Position.before) {
 435             b.currency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 436         }
 437         else {
 438             b.currency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 439         }
 440     }
 441     private void setCurrencyString(String currency) {
 442         @ColorInt int textColor = b.dummyText.getTextColors()
 443                                              .getDefaultColor();
 444         if ((currency == null) || currency.isEmpty()) {
 445             b.currency.setText(R.string.currency_symbol);
 446             int alpha = (textColor >> 24) & 0xff;
 447             alpha = alpha * 3 / 4;
 448             b.currency.setTextColor((alpha << 24) | (0x00ffffff & textColor));
 449         }
 450         else {
 451             b.currency.setText(currency);
 452             b.currency.setTextColor(textColor);
 453         }
 454     }
 455     private void setCurrency(Currency currency) {
 456         setCurrencyString((currency == null) ? null : currency.getName());
 457     }
 458     private void setEditable(Boolean editable) {
 459         b.newTransactionDate.setEnabled(editable);
 460         b.newTransactionDescription.setEnabled(editable);
 461         b.accountRowAccName.setEnabled(editable);
 462         b.accountRowAccAmounts.setEnabled(editable);
 463     }
 464     private void beginUpdates() {
 465         if (inUpdate)
 466             throw new RuntimeException("Already in update mode");
 467         inUpdate = true;
 468     }
 469     private void endUpdates() {
 470         if (!inUpdate)
 471             throw new RuntimeException("Not in update mode");
 472         inUpdate = false;
 473     }
 474     /**
 475      * syncData()
 476      * <p>
 477      * Stores the data from the UI elements into the model item
 478      * Returns true if there were changes made that suggest transaction has to be
 479      * checked for being submittable
 480      */
 481     private boolean syncData() {
 482         if (syncingData) {
 483             Logger.debug("new-trans", "skipping syncData() loop");
 484             return false;
 485         }
 486
 487         NewTransactionModel.Item item = getItem();
 488
 489         syncingData = true;
 490
 491         boolean significantChange = false;
 492
 493         try {
 494             if (item instanceof NewTransactionModel.TransactionHead) {
 495                 NewTransactionModel.TransactionHead head = item.toTransactionHead();
 496
 497                 head.setDate(String.valueOf(b.newTransactionDate.getText()));
 498
 499                 // transaction description is required
 500                 if (!significantChange && TextUtils.isEmpty(head.getDescription()) !=
 501                                           TextUtils.isEmpty(b.newTransactionDescription.getText()))
 502                     significantChange = true;
 503
 504                 head.setDescription(String.valueOf(b.newTransactionDescription.getText()));
 505                 head.setComment(String.valueOf(b.transactionComment.getText()));
 506             }
 507             else if (item instanceof NewTransactionModel.TransactionAccount) {
 508                 NewTransactionModel.TransactionAccount acc = item.toTransactionAccount();
 509
 510                 // having account name is important
 511                 if (!significantChange && TextUtils.isEmpty(acc.getAccountName()) !=
 512                                           TextUtils.isEmpty(b.accountRowAccName.getText()))
 513                     significantChange = true;
 514
 515                 acc.setAccountName(String.valueOf(b.accountRowAccName.getText()));
 516
 517                 acc.setComment(String.valueOf(b.comment.getText()));
 518
 519                 String amount = String.valueOf(b.accountRowAccAmounts.getText());
 520                 amount = amount.trim();
 521
 522                 if (amount.isEmpty()) {
 523                     if (acc.isAmountSet())
 524                         significantChange = true;
 525                     acc.resetAmount();
 526                     acc.setAmountValid(true);
 527                 }
 528                 else {
 529                     try {
 530                         amount = amount.replace(decimalSeparator, decimalDot);
 531                         final float parsedAmount = Float.parseFloat(amount);
 532                         if (!acc.isAmountSet() || !Misc.equalFloats(parsedAmount, acc.getAmount()))
 533                             significantChange = true;
 534                         acc.setAmount(parsedAmount);
 535                         acc.setAmountValid(true);
 536                     }
 537                     catch (NumberFormatException e) {
 538                         Logger.debug("new-trans", String.format(
 539                                 "assuming amount is not set due to number format exception. " +
 540                                 "input was '%s'", amount));
 541                         if (acc.isAmountValid())
 542                             significantChange = true;
 543                         acc.setAmountValid(false);
 544                     }
 545                     final String curr = String.valueOf(b.currency.getText());
 546                     final String currValue;
 547                     if (curr.equals(b.currency.getContext()
 548                                               .getResources()
 549                                               .getString(R.string.currency_symbol)) ||
 550                         curr.isEmpty())
 551                         currValue = null;
 552                     else
 553                         currValue = curr;
 554
 555                     if (!significantChange && !TextUtils.equals(acc.getCurrency(), currValue))
 556                         significantChange = true;
 557                     acc.setCurrency(currValue);
 558                 }
 559             }
 560             else {
 561                 throw new RuntimeException("Should not happen");
 562             }
 563
 564             return significantChange;
 565         }
 566         catch (ParseException e) {
 567             throw new RuntimeException("Should not happen", e);
 568         }
 569         finally {
 570             syncingData = false;
 571         }
 572     }
 573     private void pickTransactionDate() {
 574         DatePickerFragment picker = new DatePickerFragment();
 575         picker.setFutureDates(mProfile.getFutureDates());
 576         picker.setOnDatePickedListener(this);
 577         picker.setCurrentDateFromText(b.newTransactionDate.getText());
 578         picker.show(((NewTransactionActivity) b.getRoot()
 579                                                .getContext()).getSupportFragmentManager(), null);
 580     }
 581     /**
 582      * bind
 583      *
 584      * @param item updates the UI elements with the data from the model item
 585      */
 586     @SuppressLint("DefaultLocale")
 587     public void bind(@NonNull NewTransactionModel.Item item) {
 588         beginUpdates();
 589         try {
 590             syncingData = true;
 591             try {
 592                 if (item instanceof NewTransactionModel.TransactionHead) {
 593                     NewTransactionModel.TransactionHead head = item.toTransactionHead();
 594                     b.newTransactionDate.setText(head.getFormattedDate());
 595
 596                     // avoid triggering completion pop-up
 597                     SimpleCursorAdapter a =
 598                             (SimpleCursorAdapter) b.newTransactionDescription.getAdapter();
 599                     try {
 600                         b.newTransactionDescription.setAdapter(null);
 601                         b.newTransactionDescription.setText(head.getDescription());
 602                     }
 603                     finally {
 604                         b.newTransactionDescription.setAdapter(a);
 605                     }
 606
 607                     b.transactionComment.setText(head.getComment());
 608                     //styleComment(b.transactionComment, head.getComment());
 609
 610                     b.ntrData.setVisibility(View.VISIBLE);
 611                     b.ntrAccount.setVisibility(View.GONE);
 612                     b.ntrPadding.setVisibility(View.GONE);
 613                     setEditable(true);
 614                 }
 615                 else if (item instanceof NewTransactionModel.TransactionAccount) {
 616                     NewTransactionModel.TransactionAccount acc = item.toTransactionAccount();
 617
 618                     // avoid triggering completion pop-up
 619                     AccountAutocompleteAdapter a =
 620                             (AccountAutocompleteAdapter) b.accountRowAccName.getAdapter();
 621                     try {
 622                         b.accountRowAccName.setAdapter(null);
 623                         b.accountRowAccName.setText(acc.getAccountName());
 624                     }
 625                     finally {
 626                         b.accountRowAccName.setAdapter(a);
 627                     }
 628
 629                     final String amountHint = acc.getAmountHint();
 630                     if (amountHint == null) {
 631                         b.accountRowAccAmounts.setHint(R.string.zero_amount);
 632                     }
 633                     else {
 634                         b.accountRowAccAmounts.setHint(amountHint);
 635                     }
 636
 637                     b.accountRowAccAmounts.setImeOptions(
 638                             acc.isLast() ? EditorInfo.IME_ACTION_DONE : EditorInfo.IME_ACTION_NEXT);
 639
 640                     setCurrencyString(acc.getCurrency());
 641                     b.accountRowAccAmounts.setText(
 642                             acc.isAmountSet() ? String.format("%4.2f", acc.getAmount()) : null);
 643                     displayAmountValidity(true);
 644
 645                     b.comment.setText(acc.getComment());
 646
 647                     b.ntrData.setVisibility(View.GONE);
 648                     b.ntrAccount.setVisibility(View.VISIBLE);
 649                     b.ntrPadding.setVisibility(View.GONE);
 650
 651                     setEditable(true);
 652                 }
 653                 else {
 654                     throw new RuntimeException("Don't know how to handle " + item);
 655                 }
 656             }
 657             finally {
 658                 syncingData = false;
 659             }
 660         }
 661         finally {
 662             endUpdates();
 663         }
 664     }
 665     private void styleComment(EditText editText, String comment) {
 666         final View focusedView = editText.findFocus();
 667         editText.setTypeface(null, (focusedView == editText) ? Typeface.NORMAL : Typeface.ITALIC);
 668         editText.setVisibility(
 669                 ((focusedView != editText) && TextUtils.isEmpty(comment)) ? View.INVISIBLE
 670                                                                           : View.VISIBLE);
 671     }
 672     @Override
 673     public void onDatePicked(int year, int month, int day) {
 674         final NewTransactionModel.TransactionHead head = getItem().toTransactionHead();
 675         head.setDate(new SimpleDate(year, month + 1, day));
 676         b.newTransactionDate.setText(head.getFormattedDate());
 677
 678         boolean focused = b.newTransactionDescription.requestFocus();
 679         if (focused)
 680             Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
 681                                                             .getContext());
 682
 683     }
 684     private NewTransactionModel.Item getItem() {
 685         return Objects.requireNonNull(mAdapter.model.getItems()
 686                                                     .getValue())
 687                       .get(getAdapterPosition());
 688     }
 689     @Override
 690     public void descriptionSelected(String description) {
 691         b.accountRowAccName.setText(description);
 692         b.accountRowAccAmounts.requestFocus(View.FOCUS_FORWARD);
 693     }
 694 }