app/src/main/java/net/ktnx/mobileledger/ui/activity/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.activity;
  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.ViewGroup;
  28 import android.view.inputmethod.EditorInfo;
  29 import android.widget.AutoCompleteTextView;
  30 import android.widget.EditText;
  31 import android.widget.FrameLayout;
  32 import android.widget.TextView;
  33
  34 import androidx.annotation.ColorInt;
  35 import androidx.annotation.NonNull;
  36 import androidx.appcompat.app.AppCompatActivity;
  37 import androidx.constraintlayout.widget.ConstraintLayout;
  38 import androidx.lifecycle.Observer;
  39 import androidx.recyclerview.widget.RecyclerView;
  40
  41 import net.ktnx.mobileledger.R;
  42 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  43 import net.ktnx.mobileledger.model.Currency;
  44 import net.ktnx.mobileledger.model.Data;
  45 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  46 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  47 import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
  48 import net.ktnx.mobileledger.ui.DatePickerFragment;
  49 import net.ktnx.mobileledger.ui.TextViewClearHelper;
  50 import net.ktnx.mobileledger.utils.DimensionUtils;
  51 import net.ktnx.mobileledger.utils.Logger;
  52 import net.ktnx.mobileledger.utils.MLDB;
  53 import net.ktnx.mobileledger.utils.Misc;
  54 import net.ktnx.mobileledger.utils.SimpleDate;
  55
  56 import java.text.DecimalFormatSymbols;
  57 import java.text.ParseException;
  58 import java.util.Date;
  59 import java.util.Locale;
  60
  61 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  62
  63 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  64         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  65     private final String decimalDot;
  66     private final TextView tvCurrency;
  67     private final Observer<Boolean> showCommentsObserver;
  68     private final TextView tvTransactionComment;
  69     private final TextView tvDate;
  70     private final AutoCompleteTextView tvDescription;
  71     private final TextView tvDummy;
  72     private final AutoCompleteTextView tvAccount;
  73     private final TextView tvComment;
  74     private final EditText tvAmount;
  75     private final ViewGroup lHead;
  76     private final ViewGroup lAccount;
  77     private final FrameLayout lPadding;
  78     private final MobileLedgerProfile mProfile;
  79     private final Observer<SimpleDate> dateObserver;
  80     private final Observer<String> descriptionObserver;
  81     private final Observer<String> transactionCommentObserver;
  82     private final Observer<String> hintObserver;
  83     private final Observer<Integer> focusedAccountObserver;
  84     private final Observer<Integer> accountCountObserver;
  85     private final Observer<Boolean> editableObserver;
  86     private final Observer<Currency.Position> currencyPositionObserver;
  87     private final Observer<Boolean> currencyGapObserver;
  88     private final Observer<Locale> localeObserver;
  89     private final Observer<Currency> currencyObserver;
  90     private final Observer<Boolean> showCurrencyObserver;
  91     private final Observer<String> commentObserver;
  92     private final Observer<Boolean> amountValidityObserver;
  93     private final View tvCurrencyButton;
  94     private String decimalSeparator;
  95     private NewTransactionModel.Item item;
  96     private Date date;
  97     private boolean inUpdate = false;
  98     private boolean syncingData = false;
  99     //TODO multiple amounts with different currencies per posting
 100     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
 101         super(itemView);
 102         lAccount = itemView.findViewById(R.id.ntr_account);
 103         tvAccount = lAccount.findViewById(R.id.account_row_acc_name);
 104         tvComment = lAccount.findViewById(R.id.comment);
 105         tvTransactionComment = itemView.findViewById(R.id.transaction_comment);
 106         new TextViewClearHelper().attachToTextView((EditText) tvComment);
 107         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
 108         tvCurrency = itemView.findViewById(R.id.currency);
 109         tvCurrencyButton = lAccount.findViewById(R.id.currencyButton);
 110         tvDate = itemView.findViewById(R.id.new_transaction_date);
 111         tvDescription = itemView.findViewById(R.id.new_transaction_description);
 112         tvDummy = itemView.findViewById(R.id.dummy_text);
 113         lHead = itemView.findViewById(R.id.ntr_data);
 114         lPadding = itemView.findViewById(R.id.ntr_padding);
 115         final View commentLayout = itemView.findViewById(R.id.comment_layout);
 116         final View transactionCommentLayout =
 117                 itemView.findViewById(R.id.transaction_comment_layout);
 118
 119         tvDescription.setNextFocusForwardId(View.NO_ID);
 120         tvAccount.setNextFocusForwardId(View.NO_ID);
 121         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 122
 123         tvDate.setOnClickListener(v -> pickTransactionDate());
 124
 125         lAccount.findViewById(R.id.comment_button)
 126                 .setOnClickListener(v -> {
 127                     tvComment.setVisibility(View.VISIBLE);
 128                     tvComment.requestFocus();
 129                 });
 130
 131         transactionCommentLayout.findViewById(R.id.comment_button)
 132                                 .setOnClickListener(v -> {
 133                                     tvTransactionComment.setVisibility(View.VISIBLE);
 134                                     tvTransactionComment.requestFocus();
 135                                 });
 136
 137         mProfile = Data.getProfile();
 138
 139         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 140             final int id = v.getId();
 141             if (hasFocus) {
 142                 boolean wasSyncing = syncingData;
 143                 syncingData = true;
 144                 try {
 145                     final int pos = getAdapterPosition();
 146                     adapter.updateFocusedItem(pos);
 147                     switch (id) {
 148                         case R.id.account_row_acc_name:
 149                             adapter.noteFocusIsOnAccount(pos);
 150                             break;
 151                         case R.id.account_row_acc_amounts:
 152                             adapter.noteFocusIsOnAmount(pos);
 153                             break;
 154                         case R.id.comment:
 155                             adapter.noteFocusIsOnComment(pos);
 156                             break;
 157                         case R.id.transaction_comment:
 158                             adapter.noteFocusIsOnTransactionComment(pos);
 159                             break;
 160                         case R.id.new_transaction_description:
 161                             adapter.noteFocusIsOnDescription(pos);
 162                             break;
 163                     }
 164                 }
 165                 finally {
 166                     syncingData = wasSyncing;
 167                 }
 168             }
 169
 170             if (id == R.id.comment) {
 171                 commentFocusChanged(tvComment, hasFocus);
 172             }
 173             else if (id == R.id.transaction_comment) {
 174                 commentFocusChanged(tvTransactionComment, hasFocus);
 175             }
 176         };
 177
 178         tvDescription.setOnFocusChangeListener(focusMonitor);
 179         tvAccount.setOnFocusChangeListener(focusMonitor);
 180         tvAmount.setOnFocusChangeListener(focusMonitor);
 181         tvComment.setOnFocusChangeListener(focusMonitor);
 182         tvTransactionComment.setOnFocusChangeListener(focusMonitor);
 183
 184         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 185                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 186         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 187                 "name", true, this, mProfile);
 188
 189         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 190                                                               .getMonetaryDecimalSeparator());
 191         localeObserver = locale -> decimalSeparator = String.valueOf(
 192                 DecimalFormatSymbols.getInstance(locale)
 193                                     .getMonetaryDecimalSeparator());
 194
 195         decimalDot = ".";
 196
 197         final TextWatcher tw = new TextWatcher() {
 198             @Override
 199             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 200             }
 201
 202             @Override
 203             public void onTextChanged(CharSequence s, int start, int before, int count) {
 204             }
 205
 206             @Override
 207             public void afterTextChanged(Editable s) {
 208 //                debug("input", "text changed");
 209                 if (inUpdate)
 210                     return;
 211
 212                 Logger.debug("textWatcher", "calling syncData()");
 213                 syncData();
 214                 Logger.debug("textWatcher",
 215                         "syncData() returned, checking if transaction is submittable");
 216                 adapter.checkTransactionSubmittable();
 217                 Logger.debug("textWatcher", "done");
 218             }
 219         };
 220         final TextWatcher amountWatcher = new TextWatcher() {
 221             @Override
 222             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 223                 Logger.debug("num",
 224                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 225                                 start, count, after));
 226             }
 227             @Override
 228             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 229             @Override
 230             public void afterTextChanged(Editable s) {
 231
 232                 if (syncData())
 233                     adapter.checkTransactionSubmittable();
 234             }
 235         };
 236         tvDescription.addTextChangedListener(tw);
 237         tvTransactionComment.addTextChangedListener(tw);
 238         tvAccount.addTextChangedListener(tw);
 239         tvComment.addTextChangedListener(tw);
 240         tvAmount.addTextChangedListener(amountWatcher);
 241
 242         tvCurrencyButton.setOnClickListener(v -> {
 243             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 244             cpf.showPositionAndPadding();
 245             cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
 246             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 247             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 248         });
 249
 250         dateObserver = date -> {
 251             if (syncingData)
 252                 return;
 253             syncingData = true;
 254             try {
 255                 tvDate.setText(item.getFormattedDate());
 256             }
 257             finally {
 258                 syncingData = false;
 259             }
 260         };
 261         descriptionObserver = description -> {
 262             if (syncingData)
 263                 return;
 264             syncingData = true;
 265             try {
 266                 tvDescription.setText(description);
 267             }
 268             finally {
 269                 syncingData = false;
 270             }
 271         };
 272         transactionCommentObserver = transactionComment -> {
 273             final View focusedView = tvTransactionComment.findFocus();
 274             tvTransactionComment.setTypeface(null,
 275                     (focusedView == tvTransactionComment) ? Typeface.NORMAL : Typeface.ITALIC);
 276             tvTransactionComment.setVisibility(
 277                     ((focusedView != tvTransactionComment) && TextUtils.isEmpty(transactionComment))
 278                     ? View.INVISIBLE : View.VISIBLE);
 279
 280         };
 281         hintObserver = hint -> {
 282             if (syncingData)
 283                 return;
 284             syncingData = true;
 285             try {
 286                 if (hint == null)
 287                     tvAmount.setHint(R.string.zero_amount);
 288                 else
 289                     tvAmount.setHint(hint);
 290             }
 291             finally {
 292                 syncingData = false;
 293             }
 294         };
 295         editableObserver = this::setEditable;
 296         commentFocusChanged(tvTransactionComment, false);
 297         commentFocusChanged(tvComment, false);
 298         focusedAccountObserver = index -> {
 299             if ((index == null) || !index.equals(getAdapterPosition()) || itemView.hasFocus())
 300                 return;
 301
 302             switch (item.getType()) {
 303                 case generalData:
 304                     // bad idea - double pop-up, and not really necessary.
 305                     // the user can tap the input to get the calendar
 306                     //if (!tvDate.hasFocus()) tvDate.requestFocus();
 307                     switch (item.getFocusedElement()) {
 308                         case TransactionComment:
 309                             tvTransactionComment.setVisibility(View.VISIBLE);
 310                             tvTransactionComment.requestFocus();
 311                             break;
 312                         case Description:
 313                             boolean focused = tvDescription.requestFocus();
 314 //                            tvDescription.dismissDropDown();
 315                             if (focused)
 316                                 Misc.showSoftKeyboard(
 317                                         (NewTransactionActivity) tvDescription.getContext());
 318                             break;
 319                     }
 320                     break;
 321                 case transactionRow:
 322                     switch (item.getFocusedElement()) {
 323                         case Amount:
 324                             tvAmount.requestFocus();
 325                             break;
 326                         case Comment:
 327                             tvComment.setVisibility(View.VISIBLE);
 328                             tvComment.requestFocus();
 329                             break;
 330                         case Account:
 331                             boolean focused = tvAccount.requestFocus();
 332                             tvAccount.dismissDropDown();
 333                             if (focused)
 334                                 Misc.showSoftKeyboard(
 335                                         (NewTransactionActivity) tvAccount.getContext());
 336                             break;
 337                     }
 338
 339                     break;
 340             }
 341         };
 342         accountCountObserver = count -> {
 343             final int adapterPosition = getAdapterPosition();
 344             final int layoutPosition = getLayoutPosition();
 345             Logger.debug("holder",
 346                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 347                             adapterPosition, layoutPosition, item.getType()
 348                                                                  .toString()
 349                                                                  .concat(item.getType() ==
 350                                                                          ItemType.transactionRow
 351                                                                          ? String.format(Locale.US,
 352                                                                          "'%s'=%s",
 353                                                                          item.getAccount()
 354                                                                              .getAccountName(),
 355                                                                          item.getAccount()
 356                                                                              .isAmountSet()
 357                                                                          ? String.format(Locale.US,
 358                                                                                  "%.2f",
 359                                                                                  item.getAccount()
 360                                                                                      .getAmount())
 361                                                                          : "unset") : "")));
 362             if (adapterPosition == count)
 363                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 364             else
 365                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 366         };
 367
 368         currencyObserver = currency -> {
 369             setCurrency(currency);
 370             adapter.checkTransactionSubmittable();
 371         };
 372
 373         currencyGapObserver =
 374                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 375                         hasGap);
 376
 377         currencyPositionObserver =
 378                 position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 379
 380         showCurrencyObserver = showCurrency -> {
 381             if (showCurrency) {
 382                 tvCurrency.setVisibility(View.VISIBLE);
 383                 tvCurrencyButton.setVisibility(View.VISIBLE);
 384                 String defaultCommodity = mProfile.getDefaultCommodity();
 385                 item.setCurrency(
 386                         (defaultCommodity == null) ? null : Currency.loadByName(defaultCommodity));
 387             }
 388             else {
 389                 tvCurrency.setVisibility(View.GONE);
 390                 tvCurrencyButton.setVisibility(View.GONE);
 391                 item.setCurrency(null);
 392             }
 393         };
 394
 395         commentObserver = comment -> {
 396             final View focusedView = tvComment.findFocus();
 397             tvComment.setTypeface(null,
 398                     (focusedView == tvComment) ? Typeface.NORMAL : Typeface.ITALIC);
 399             tvComment.setVisibility(
 400                     ((focusedView != tvComment) && TextUtils.isEmpty(comment)) ? View.INVISIBLE
 401                                                                                : View.VISIBLE);
 402         };
 403
 404         showCommentsObserver = show -> {
 405             final View amountLayout = itemView.findViewById(R.id.amount_layout);
 406             ConstraintLayout.LayoutParams amountLayoutParams =
 407                     (ConstraintLayout.LayoutParams) amountLayout.getLayoutParams();
 408             ConstraintLayout.LayoutParams accountParams =
 409                     (ConstraintLayout.LayoutParams) tvAccount.getLayoutParams();
 410             if (show) {
 411                 accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
 412                 accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 413
 414                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
 415                 amountLayoutParams.topToBottom = tvAccount.getId();
 416
 417                 commentLayout.setVisibility(View.VISIBLE);
 418             }
 419             else {
 420                 accountParams.endToStart = amountLayout.getId();
 421                 accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 422
 423                 amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
 424                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
 425
 426                 commentLayout.setVisibility(View.GONE);
 427             }
 428
 429             tvAccount.setLayoutParams(accountParams);
 430             amountLayout.setLayoutParams(amountLayoutParams);
 431
 432             transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
 433         };
 434
 435         amountValidityObserver = valid -> {
 436             tvAmount.setCompoundDrawablesRelativeWithIntrinsicBounds(
 437                     valid ? 0 : R.drawable.ic_error_outline_black_24dp, 0, 0, 0);
 438             tvAmount.setMinEms(valid ? 4 : 5);
 439         };
 440     }
 441     private void commentFocusChanged(TextView textView, boolean hasFocus) {
 442         @ColorInt int textColor;
 443         textColor = tvDummy.getTextColors()
 444                            .getDefaultColor();
 445         if (hasFocus) {
 446             textView.setTypeface(null, Typeface.NORMAL);
 447             textView.setHint(R.string.transaction_account_comment_hint);
 448         }
 449         else {
 450             int alpha = (textColor >> 24 & 0xff);
 451             alpha = 3 * alpha / 4;
 452             textColor = (alpha << 24) | (0x00ffffff & textColor);
 453             textView.setTypeface(null, Typeface.ITALIC);
 454             textView.setHint("");
 455             if (TextUtils.isEmpty(textView.getText())) {
 456                 textView.setVisibility(View.INVISIBLE);
 457             }
 458         }
 459         textView.setTextColor(textColor);
 460
 461     }
 462     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 463         ConstraintLayout.LayoutParams amountLP =
 464                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 465         ConstraintLayout.LayoutParams currencyLP =
 466                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 467
 468         if (position == Currency.Position.before) {
 469             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 470             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 471
 472             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 473             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 474             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 475             amountLP.startToEnd = tvCurrency.getId();
 476
 477             tvCurrency.setGravity(Gravity.END);
 478         }
 479         else {
 480             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 481             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 482
 483             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 484             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 485             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 486             amountLP.endToStart = tvCurrency.getId();
 487
 488             tvCurrency.setGravity(Gravity.START);
 489         }
 490
 491         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 492         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 493
 494         tvAmount.setLayoutParams(amountLP);
 495         tvCurrency.setLayoutParams(currencyLP);
 496
 497         // distance between the amount and the currency symbol
 498         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 499
 500         if (position == Currency.Position.before) {
 501             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 502         }
 503         else {
 504             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 505         }
 506     }
 507     private void setCurrencyString(String currency) {
 508         @ColorInt int textColor = tvDummy.getTextColors()
 509                                          .getDefaultColor();
 510         if ((currency == null) || currency.isEmpty()) {
 511             tvCurrency.setText(R.string.currency_symbol);
 512             int alpha = (textColor >> 24) & 0xff;
 513             alpha = alpha * 3 / 4;
 514             tvCurrency.setTextColor((alpha << 24) | (0x00ffffff & textColor));
 515         }
 516         else {
 517             tvCurrency.setText(currency);
 518             tvCurrency.setTextColor(textColor);
 519         }
 520     }
 521     private void setCurrency(Currency currency) {
 522         setCurrencyString((currency == null) ? null : currency.getName());
 523     }
 524     private void setEditable(Boolean editable) {
 525         tvDate.setEnabled(editable);
 526         tvDescription.setEnabled(editable);
 527         tvAccount.setEnabled(editable);
 528         tvAmount.setEnabled(editable);
 529     }
 530     private void beginUpdates() {
 531         if (inUpdate)
 532             throw new RuntimeException("Already in update mode");
 533         inUpdate = true;
 534     }
 535     private void endUpdates() {
 536         if (!inUpdate)
 537             throw new RuntimeException("Not in update mode");
 538         inUpdate = false;
 539     }
 540     /**
 541      * syncData()
 542      * <p>
 543      * Stores the data from the UI elements into the model item
 544      * Returns true if there were changes made that suggest transaction has to be
 545      * checked for being submittable
 546      */
 547     private boolean syncData() {
 548         if (item == null)
 549             return false;
 550
 551         if (syncingData) {
 552             Logger.debug("new-trans", "skipping syncData() loop");
 553             return false;
 554         }
 555
 556         syncingData = true;
 557
 558         try {
 559             switch (item.getType()) {
 560                 case generalData:
 561                     item.setDate(String.valueOf(tvDate.getText()));
 562                     item.setDescription(String.valueOf(tvDescription.getText()));
 563                     item.setTransactionComment(String.valueOf(tvTransactionComment.getText()));
 564                     break;
 565                 case transactionRow:
 566                     final LedgerTransactionAccount account = item.getAccount();
 567                     account.setAccountName(String.valueOf(tvAccount.getText()));
 568
 569                     item.setComment(String.valueOf(tvComment.getText()));
 570
 571                     String amount = String.valueOf(tvAmount.getText());
 572                     amount = amount.trim();
 573
 574                     if (amount.isEmpty()) {
 575                         account.resetAmount();
 576                         item.validateAmount();
 577                     }
 578                     else {
 579                         try {
 580                             amount = amount.replace(decimalSeparator, decimalDot);
 581                             account.setAmount(Float.parseFloat(amount));
 582                             item.validateAmount();
 583                         }
 584                         catch (NumberFormatException e) {
 585                             Logger.debug("new-trans", String.format(
 586                                     "assuming amount is not set due to number format exception. " +
 587                                     "input was '%s'", amount));
 588                             account.invalidateAmount();
 589                             item.invalidateAmount();
 590                         }
 591                         final String curr = String.valueOf(tvCurrency.getText());
 592                         if (curr.equals(tvCurrency.getContext()
 593                                                   .getResources()
 594                                                   .getString(R.string.currency_symbol)) ||
 595                             curr.isEmpty())
 596                             account.setCurrency(null);
 597                         else
 598                             account.setCurrency(curr);
 599                     }
 600
 601                     break;
 602                 case bottomFiller:
 603                     throw new RuntimeException("Should not happen");
 604             }
 605
 606             return true;
 607         }
 608         catch (ParseException e) {
 609             throw new RuntimeException("Should not happen", e);
 610         }
 611         finally {
 612             syncingData = false;
 613         }
 614     }
 615     private void pickTransactionDate() {
 616         DatePickerFragment picker = new DatePickerFragment();
 617         picker.setFutureDates(mProfile.getFutureDates());
 618         picker.setOnDatePickedListener(this);
 619         picker.setCurrentDateFromText(tvDate.getText());
 620         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 621                 null);
 622     }
 623     /**
 624      * setData
 625      *
 626      * @param item updates the UI elements with the data from the model item
 627      */
 628     @SuppressLint("DefaultLocale")
 629     public void setData(NewTransactionModel.Item item) {
 630         beginUpdates();
 631         try {
 632             if (this.item != null && !this.item.equals(item)) {
 633                 this.item.stopObservingDate(dateObserver);
 634                 this.item.stopObservingDescription(descriptionObserver);
 635                 this.item.stopObservingTransactionComment(transactionCommentObserver);
 636                 this.item.stopObservingAmountHint(hintObserver);
 637                 this.item.stopObservingEditableFlag(editableObserver);
 638                 this.item.getModel()
 639                          .stopObservingFocusedItem(focusedAccountObserver);
 640                 this.item.getModel()
 641                          .stopObservingAccountCount(accountCountObserver);
 642                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 643                 Data.currencyGap.removeObserver(currencyGapObserver);
 644                 Data.locale.removeObserver(localeObserver);
 645                 this.item.stopObservingCurrency(currencyObserver);
 646                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 647                 this.item.stopObservingComment(commentObserver);
 648                 this.item.getModel().showComments.removeObserver(showCommentsObserver);
 649                 this.item.stopObservingAmountValidity(amountValidityObserver);
 650
 651                 this.item = null;
 652             }
 653
 654             switch (item.getType()) {
 655                 case generalData:
 656                     tvDate.setText(item.getFormattedDate());
 657                     tvDescription.setText(item.getDescription());
 658                     tvTransactionComment.setText(item.getTransactionComment());
 659                     lHead.setVisibility(View.VISIBLE);
 660                     lAccount.setVisibility(View.GONE);
 661                     lPadding.setVisibility(View.GONE);
 662                     setEditable(true);
 663                     break;
 664                 case transactionRow:
 665                     LedgerTransactionAccount acc = item.getAccount();
 666                     tvAccount.setText(acc.getAccountName());
 667                     tvComment.setText(acc.getComment());
 668                     if (acc.isAmountSet()) {
 669                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 670                     }
 671                     else {
 672                         tvAmount.setText("");
 673 //                        tvAmount.setHint(R.string.zero_amount);
 674                     }
 675                     tvAmount.setHint(item.getAmountHint());
 676                     setCurrencyString(acc.getCurrency());
 677                     lHead.setVisibility(View.GONE);
 678                     lAccount.setVisibility(View.VISIBLE);
 679                     lPadding.setVisibility(View.GONE);
 680                     setEditable(true);
 681                     break;
 682                 case bottomFiller:
 683                     lHead.setVisibility(View.GONE);
 684                     lAccount.setVisibility(View.GONE);
 685                     lPadding.setVisibility(View.VISIBLE);
 686                     setEditable(false);
 687                     break;
 688             }
 689             if (this.item == null) { // was null or has changed
 690                 this.item = item;
 691                 final NewTransactionActivity activity =
 692                         (NewTransactionActivity) tvDescription.getContext();
 693
 694                 if (!item.isBottomFiller()) {
 695                     item.observeEditableFlag(activity, editableObserver);
 696                     item.getModel()
 697                         .observeFocusedItem(activity, focusedAccountObserver);
 698                     item.getModel()
 699                         .observeShowComments(activity, showCommentsObserver);
 700                 }
 701                 switch (item.getType()) {
 702                     case generalData:
 703                         item.observeDate(activity, dateObserver);
 704                         item.observeDescription(activity, descriptionObserver);
 705                         item.observeTransactionComment(activity, transactionCommentObserver);
 706                         break;
 707                     case transactionRow:
 708                         item.observeAmountHint(activity, hintObserver);
 709                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 710                         Data.currencyGap.observe(activity, currencyGapObserver);
 711                         Data.locale.observe(activity, localeObserver);
 712                         item.observeCurrency(activity, currencyObserver);
 713                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 714                         item.observeComment(activity, commentObserver);
 715                         item.getModel()
 716                             .observeAccountCount(activity, accountCountObserver);
 717                         item.observeAmountValidity(activity, amountValidityObserver);
 718                         break;
 719                 }
 720             }
 721         }
 722         finally {
 723             endUpdates();
 724         }
 725     }
 726     @Override
 727     public void onDatePicked(int year, int month, int day) {
 728         item.setDate(new SimpleDate(year, month + 1, day));
 729         boolean focused = tvDescription.requestFocus();
 730         if (focused)
 731             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 732
 733     }
 734     @Override
 735     public void descriptionSelected(String description) {
 736         tvAccount.setText(description);
 737         tvAmount.requestFocus(View.FOCUS_FORWARD);
 738     }
 739 }