app/src/main/java/net/ktnx/mobileledger/ui/activity/NewTransactionItemHolder.java

   1 /*
   2  * Copyright © 2019 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.os.Build;
  23 import android.text.Editable;
  24 import android.text.TextWatcher;
  25 import android.text.method.DigitsKeyListener;
  26 import android.view.Gravity;
  27 import android.view.View;
  28 import android.view.ViewGroup;
  29 import android.view.inputmethod.EditorInfo;
  30 import android.widget.AutoCompleteTextView;
  31 import android.widget.EditText;
  32 import android.widget.FrameLayout;
  33 import android.widget.TextView;
  34
  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.Colors;
  51 import net.ktnx.mobileledger.utils.DimensionUtils;
  52 import net.ktnx.mobileledger.utils.Logger;
  53 import net.ktnx.mobileledger.utils.MLDB;
  54 import net.ktnx.mobileledger.utils.Misc;
  55
  56 import java.text.DecimalFormatSymbols;
  57 import java.util.Calendar;
  58 import java.util.Date;
  59 import java.util.GregorianCalendar;
  60 import java.util.Locale;
  61
  62 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  63
  64 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  65         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  66     private final String decimalDot;
  67     private final TextView tvCurrency;
  68     private final Observer<Boolean> showCommentsObserver;
  69     private final TextView tvTransactionComment;
  70     private String decimalSeparator;
  71     private NewTransactionModel.Item item;
  72     private TextView tvDate;
  73     private AutoCompleteTextView tvDescription;
  74     private AutoCompleteTextView tvAccount;
  75     private TextView tvComment;
  76     private EditText tvAmount;
  77     private ViewGroup lHead;
  78     private ViewGroup lAccount;
  79     private FrameLayout lPadding;
  80     private MobileLedgerProfile mProfile;
  81     private Date date;
  82     private Observer<Date> dateObserver;
  83     private Observer<String> descriptionObserver;
  84     private Observer<String> transactionCommentObserver;
  85     private Observer<String> hintObserver;
  86     private Observer<Integer> focusedAccountObserver;
  87     private Observer<Integer> accountCountObserver;
  88     private Observer<Boolean> editableObserver;
  89     private Observer<Currency.Position> currencyPositionObserver;
  90     private Observer<Boolean> currencyGapObserver;
  91     private Observer<Locale> localeObserver;
  92     private Observer<Currency> currencyObserver;
  93     private Observer<Boolean> showCurrencyObserver;
  94     private Observer<String> commentObserver;
  95     private Observer<Boolean> amountValidityObserver;
  96     private boolean inUpdate = false;
  97     private boolean syncingData = false;
  98     private View commentButton;
  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         commentButton = lAccount.findViewById(R.id.comment_button);
 108         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
 109         tvCurrency = itemView.findViewById(R.id.currency);
 110         tvDate = itemView.findViewById(R.id.new_transaction_date);
 111         tvDescription = itemView.findViewById(R.id.new_transaction_description);
 112         lHead = itemView.findViewById(R.id.ntr_data);
 113         lPadding = itemView.findViewById(R.id.ntr_padding);
 114         final View commentLayout = itemView.findViewById(R.id.comment_layout);
 115         final View transactionCommentLayout =
 116                 itemView.findViewById(R.id.transaction_comment_layout);
 117
 118         tvDescription.setNextFocusForwardId(View.NO_ID);
 119         tvAccount.setNextFocusForwardId(View.NO_ID);
 120         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 121
 122         tvDate.setOnClickListener(v -> pickTransactionDate());
 123
 124         commentButton.setOnClickListener(v -> {
 125             tvComment.setVisibility(View.VISIBLE);
 126             tvComment.requestFocus();
 127         });
 128
 129         transactionCommentLayout.findViewById(R.id.comment_button)
 130                                 .setOnClickListener(v -> {
 131                                     tvTransactionComment.setVisibility(View.VISIBLE);
 132                                     tvTransactionComment.requestFocus();
 133                                 });
 134
 135         mProfile = Data.profile.getValue();
 136         if (mProfile == null)
 137             throw new AssertionError();
 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(commentLayout, tvComment, hasFocus);
 172             }
 173             else if (id == R.id.transaction_comment) {
 174                 commentFocusChanged(transactionCommentLayout, 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         // updated on locale changes by an observer below
 190         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 191                                                               .getMonetaryDecimalSeparator());
 192         decimalDot = ".";
 193
 194         final TextWatcher tw = new TextWatcher() {
 195             @Override
 196             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 197             }
 198
 199             @Override
 200             public void onTextChanged(CharSequence s, int start, int before, int count) {
 201             }
 202
 203             @Override
 204             public void afterTextChanged(Editable s) {
 205 //                debug("input", "text changed");
 206                 if (inUpdate)
 207                     return;
 208
 209                 Logger.debug("textWatcher", "calling syncData()");
 210                 syncData();
 211                 Logger.debug("textWatcher",
 212                         "syncData() returned, checking if transaction is submittable");
 213                 adapter.checkTransactionSubmittable();
 214                 Logger.debug("textWatcher", "done");
 215             }
 216         };
 217         final TextWatcher amountWatcher = new TextWatcher() {
 218             @Override
 219             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 220                 Logger.debug("num",
 221                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 222                                 start, count, after));
 223             }
 224             @Override
 225             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 226             @Override
 227             public void afterTextChanged(Editable s) {
 228
 229                 if (syncData())
 230                     adapter.checkTransactionSubmittable();
 231             }
 232         };
 233         tvDescription.addTextChangedListener(tw);
 234         tvTransactionComment.addTextChangedListener(tw);
 235         tvAccount.addTextChangedListener(tw);
 236         tvComment.addTextChangedListener(tw);
 237         tvAmount.addTextChangedListener(amountWatcher);
 238
 239         tvCurrency.setOnClickListener(v -> {
 240             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 241             cpf.showPositionAndPadding();
 242             cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
 243             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 244             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 245         });
 246
 247         dateObserver = date -> {
 248             if (syncingData)
 249                 return;
 250             syncingData = true;
 251             try {
 252                 tvDate.setText(item.getFormattedDate());
 253             }
 254             finally {
 255                 syncingData = false;
 256             }
 257         };
 258         descriptionObserver = description -> {
 259             if (syncingData)
 260                 return;
 261             syncingData = true;
 262             try {
 263                 tvDescription.setText(description);
 264             }
 265             finally {
 266                 syncingData = false;
 267             }
 268         };
 269         transactionCommentObserver = transactionComment -> {
 270             final View focusedView = tvTransactionComment.findFocus();
 271             tvTransactionComment.setTypeface(null,
 272                     (focusedView == tvTransactionComment) ? Typeface.NORMAL : Typeface.ITALIC);
 273             tvTransactionComment.setVisibility(((focusedView != tvTransactionComment) &&
 274                                                 Misc.isEmptyOrNull(transactionComment))
 275                                                ? View.INVISIBLE : View.VISIBLE);
 276
 277         };
 278         hintObserver = hint -> {
 279             if (syncingData)
 280                 return;
 281             syncingData = true;
 282             try {
 283                 if (hint == null)
 284                     tvAmount.setHint(R.string.zero_amount);
 285                 else
 286                     tvAmount.setHint(hint);
 287             }
 288             finally {
 289                 syncingData = false;
 290             }
 291         };
 292         editableObserver = this::setEditable;
 293         focusedAccountObserver = index -> {
 294             if ((index == null) || !index.equals(getAdapterPosition()) || itemView.hasFocus())
 295                 return;
 296
 297             switch (item.getType()) {
 298                 case generalData:
 299                     // bad idea - double pop-up, and not really necessary.
 300                     // the user can tap the input to get the calendar
 301                     //if (!tvDate.hasFocus()) tvDate.requestFocus();
 302                     switch (item.getFocusedElement()) {
 303                         case TransactionComment:
 304                             tvTransactionComment.setVisibility(View.VISIBLE);
 305                             tvTransactionComment.requestFocus();
 306                             break;
 307                         case Description:
 308                             boolean focused = tvDescription.requestFocus();
 309                             tvDescription.dismissDropDown();
 310                             if (focused)
 311                                 Misc.showSoftKeyboard(
 312                                         (NewTransactionActivity) tvDescription.getContext());
 313                             break;
 314                     }
 315                     break;
 316                 case transactionRow:
 317                     switch (item.getFocusedElement()) {
 318                         case Amount:
 319                             tvAmount.requestFocus();
 320                             break;
 321                         case Comment:
 322                             tvComment.setVisibility(View.VISIBLE);
 323                             tvComment.requestFocus();
 324                             break;
 325                         case Account:
 326                             boolean focused = tvAccount.requestFocus();
 327                             tvAccount.dismissDropDown();
 328                             if (focused)
 329                                 Misc.showSoftKeyboard(
 330                                         (NewTransactionActivity) tvAccount.getContext());
 331                             break;
 332                     }
 333
 334                     break;
 335             }
 336         };
 337         accountCountObserver = count -> {
 338             final int adapterPosition = getAdapterPosition();
 339             final int layoutPosition = getLayoutPosition();
 340             Logger.debug("holder",
 341                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 342                             adapterPosition, layoutPosition, item.getType()
 343                                                                  .toString()
 344                                                                  .concat(item.getType() ==
 345                                                                          ItemType.transactionRow
 346                                                                          ? String.format(Locale.US,
 347                                                                          "'%s'=%s",
 348                                                                          item.getAccount()
 349                                                                              .getAccountName(),
 350                                                                          item.getAccount()
 351                                                                              .isAmountSet()
 352                                                                          ? String.format(Locale.US,
 353                                                                                  "%.2f",
 354                                                                                  item.getAccount()
 355                                                                                      .getAmount())
 356                                                                          : "unset") : "")));
 357             if (adapterPosition == count)
 358                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 359             else
 360                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 361         };
 362
 363         localeObserver = locale -> {
 364             decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance(locale)
 365                                                                   .getMonetaryDecimalSeparator());
 366
 367             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 368                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 369         };
 370
 371         currencyObserver = currency -> {
 372             setCurrency(currency);
 373             adapter.checkTransactionSubmittable();
 374         };
 375
 376         currencyGapObserver =
 377                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 378                         hasGap);
 379
 380         currencyPositionObserver =
 381                 position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 382
 383         showCurrencyObserver = showCurrency -> {
 384             if (showCurrency) {
 385                 tvCurrency.setVisibility(View.VISIBLE);
 386             }
 387             else {
 388                 tvCurrency.setVisibility(View.GONE);
 389                 item.setCurrency(null);
 390             }
 391         };
 392
 393         commentObserver = comment -> {
 394             final View focusedView = tvComment.findFocus();
 395             tvComment.setTypeface(null,
 396                     (focusedView == tvComment) ? Typeface.NORMAL : Typeface.ITALIC);
 397             tvComment.setVisibility(
 398                     ((focusedView != tvComment) && Misc.isEmptyOrNull(comment)) ? View.INVISIBLE
 399                                                                                 : View.VISIBLE);
 400         };
 401
 402         showCommentsObserver = show -> {
 403             final View amountLayout = itemView.findViewById(R.id.amount_layout);
 404             ConstraintLayout.LayoutParams amountLayoutParams =
 405                     (ConstraintLayout.LayoutParams) amountLayout.getLayoutParams();
 406             ConstraintLayout.LayoutParams accountParams =
 407                     (ConstraintLayout.LayoutParams) tvAccount.getLayoutParams();
 408             if (show) {
 409                 accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
 410                 accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 411
 412                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
 413                 amountLayoutParams.topToBottom = tvAccount.getId();
 414
 415                 commentLayout.setVisibility(View.VISIBLE);
 416             }
 417             else {
 418                 accountParams.endToStart = amountLayout.getId();
 419                 accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 420
 421                 amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
 422                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
 423
 424                 commentLayout.setVisibility(View.GONE);
 425             }
 426
 427             tvAccount.setLayoutParams(accountParams);
 428             amountLayout.setLayoutParams(amountLayoutParams);
 429
 430             transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
 431         };
 432
 433         amountValidityObserver = valid -> {
 434             tvAmount.setCompoundDrawablesRelativeWithIntrinsicBounds(
 435                     valid ? 0 : R.drawable.ic_error_outline_black_24dp, 0, 0, 0);
 436             tvAmount.setMinEms(valid ? 4 : 5);
 437         };
 438     }
 439     private void commentFocusChanged(View layout, TextView textView, boolean hasFocus) {
 440         int textColor;
 441         if (hasFocus) {
 442             textColor = Colors.defaultTextColor;
 443             textView.setTypeface(null, Typeface.NORMAL);
 444             textView.setHint(R.string.transaction_account_comment_hint);
 445         }
 446         else {
 447             textColor = Colors.defaultTextColorDisabled;
 448             textView.setTypeface(null, Typeface.ITALIC);
 449             textView.setHint("");
 450             if (Misc.isEmptyOrNull(textView.getText())) {
 451                 textView.setVisibility(View.INVISIBLE);
 452             }
 453         }
 454         textView.setTextColor(textColor);
 455
 456     }
 457     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 458         ConstraintLayout.LayoutParams amountLP =
 459                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 460         ConstraintLayout.LayoutParams currencyLP =
 461                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 462
 463         if (position == Currency.Position.before) {
 464             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 465             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 466
 467             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 468             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 469             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 470             amountLP.startToEnd = tvCurrency.getId();
 471
 472             tvCurrency.setGravity(Gravity.END);
 473         }
 474         else {
 475             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 476             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 477
 478             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 479             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 480             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 481             amountLP.endToStart = tvCurrency.getId();
 482
 483             tvCurrency.setGravity(Gravity.START);
 484         }
 485
 486         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 487         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 488
 489         tvAmount.setLayoutParams(amountLP);
 490         tvCurrency.setLayoutParams(currencyLP);
 491
 492         // distance between the amount and the currency symbol
 493         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 494
 495         if (position == Currency.Position.before) {
 496             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 497         }
 498         else {
 499             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 500         }
 501     }
 502     private void setCurrencyString(String currency) {
 503         if ((currency == null) || currency.isEmpty()) {
 504             tvCurrency.setText(R.string.currency_symbol);
 505             tvCurrency.setTextColor(0x7f000000 + (0x00ffffff & Colors.defaultTextColor));
 506         }
 507         else {
 508             tvCurrency.setText(currency);
 509             tvCurrency.setTextColor(Colors.defaultTextColor);
 510         }
 511     }
 512     private void setCurrency(Currency currency) {
 513         setCurrencyString((currency == null) ? null : currency.getName());
 514     }
 515     private void setEditable(Boolean editable) {
 516         tvDate.setEnabled(editable);
 517         tvDescription.setEnabled(editable);
 518         tvAccount.setEnabled(editable);
 519         tvAmount.setEnabled(editable);
 520     }
 521     private void beginUpdates() {
 522         if (inUpdate)
 523             throw new RuntimeException("Already in update mode");
 524         inUpdate = true;
 525     }
 526     private void endUpdates() {
 527         if (!inUpdate)
 528             throw new RuntimeException("Not in update mode");
 529         inUpdate = false;
 530     }
 531     /**
 532      * syncData()
 533      * <p>
 534      * Stores the data from the UI elements into the model item
 535      * Returns true if there were changes made that suggest transaction has to be
 536      * checked for being submittable
 537      */
 538     private boolean syncData() {
 539         if (item == null)
 540             return false;
 541
 542         if (syncingData) {
 543             Logger.debug("new-trans", "skipping syncData() loop");
 544             return false;
 545         }
 546
 547         syncingData = true;
 548
 549         try {
 550             switch (item.getType()) {
 551                 case generalData:
 552                     item.setDate(String.valueOf(tvDate.getText()));
 553                     item.setDescription(String.valueOf(tvDescription.getText()));
 554                     item.setTransactionComment(String.valueOf(tvTransactionComment.getText()));
 555                     break;
 556                 case transactionRow:
 557                     final LedgerTransactionAccount account = item.getAccount();
 558                     account.setAccountName(String.valueOf(tvAccount.getText()));
 559
 560                     item.setComment(String.valueOf(tvComment.getText()));
 561
 562                     String amount = String.valueOf(tvAmount.getText());
 563                     amount = amount.trim();
 564
 565                     if (amount.isEmpty()) {
 566                         account.resetAmount();
 567                         item.validateAmount();
 568                     }
 569                     else {
 570                         try {
 571                             amount = amount.replace(decimalSeparator, decimalDot);
 572                             account.setAmount(Float.parseFloat(amount));
 573                             item.validateAmount();
 574                         }
 575                         catch (NumberFormatException e) {
 576                             Logger.debug("new-trans", String.format(
 577                                     "assuming amount is not set due to number format exception. " +
 578                                     "input was '%s'", amount));
 579                             account.invalidateAmount();
 580                             item.invalidateAmount();
 581                         }
 582                         final String curr = String.valueOf(tvCurrency.getText());
 583                         if (curr.equals(tvCurrency.getContext()
 584                                                   .getResources()
 585                                                   .getString(R.string.currency_symbol)) ||
 586                             curr.isEmpty())
 587                             account.setCurrency(null);
 588                         else
 589                             account.setCurrency(curr);
 590                     }
 591
 592                     break;
 593                 case bottomFiller:
 594                     throw new RuntimeException("Should not happen");
 595             }
 596
 597             return true;
 598         }
 599         finally {
 600             syncingData = false;
 601         }
 602     }
 603     private void pickTransactionDate() {
 604         DatePickerFragment picker = new DatePickerFragment();
 605         picker.setFutureDates(mProfile.getFutureDates());
 606         picker.setOnDatePickedListener(this);
 607         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 608                 "datePicker");
 609     }
 610     /**
 611      * setData
 612      *
 613      * @param item updates the UI elements with the data from the model item
 614      */
 615     @SuppressLint("DefaultLocale")
 616     public void setData(NewTransactionModel.Item item) {
 617         beginUpdates();
 618         try {
 619             if (this.item != null && !this.item.equals(item)) {
 620                 this.item.stopObservingDate(dateObserver);
 621                 this.item.stopObservingDescription(descriptionObserver);
 622                 this.item.stopObservingTransactionComment(transactionCommentObserver);
 623                 this.item.stopObservingAmountHint(hintObserver);
 624                 this.item.stopObservingEditableFlag(editableObserver);
 625                 this.item.getModel()
 626                          .stopObservingFocusedItem(focusedAccountObserver);
 627                 this.item.getModel()
 628                          .stopObservingAccountCount(accountCountObserver);
 629                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 630                 Data.currencyGap.removeObserver(currencyGapObserver);
 631                 Data.locale.removeObserver(localeObserver);
 632                 this.item.stopObservingCurrency(currencyObserver);
 633                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 634                 this.item.stopObservingComment(commentObserver);
 635                 this.item.getModel().showComments.removeObserver(showCommentsObserver);
 636                 this.item.stopObservingAmountValidity(amountValidityObserver);
 637
 638                 this.item = null;
 639             }
 640
 641             switch (item.getType()) {
 642                 case generalData:
 643                     tvDate.setText(item.getFormattedDate());
 644                     tvDescription.setText(item.getDescription());
 645                     tvTransactionComment.setText(item.getTransactionComment());
 646                     lHead.setVisibility(View.VISIBLE);
 647                     lAccount.setVisibility(View.GONE);
 648                     lPadding.setVisibility(View.GONE);
 649                     setEditable(true);
 650                     break;
 651                 case transactionRow:
 652                     LedgerTransactionAccount acc = item.getAccount();
 653                     tvAccount.setText(acc.getAccountName());
 654                     tvComment.setText(acc.getComment());
 655                     if (acc.isAmountSet()) {
 656                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 657                     }
 658                     else {
 659                         tvAmount.setText("");
 660 //                        tvAmount.setHint(R.string.zero_amount);
 661                     }
 662                     tvAmount.setHint(item.getAmountHint());
 663                     setCurrencyString(acc.getCurrency());
 664                     lHead.setVisibility(View.GONE);
 665                     lAccount.setVisibility(View.VISIBLE);
 666                     lPadding.setVisibility(View.GONE);
 667                     setEditable(true);
 668                     break;
 669                 case bottomFiller:
 670                     lHead.setVisibility(View.GONE);
 671                     lAccount.setVisibility(View.GONE);
 672                     lPadding.setVisibility(View.VISIBLE);
 673                     setEditable(false);
 674                     break;
 675             }
 676             if (this.item == null) { // was null or has changed
 677                 this.item = item;
 678                 final NewTransactionActivity activity =
 679                         (NewTransactionActivity) tvDescription.getContext();
 680
 681                 if (!item.isOfType(ItemType.bottomFiller)) {
 682                     item.observeEditableFlag(activity, editableObserver);
 683                     item.getModel()
 684                         .observeFocusedItem(activity, focusedAccountObserver);
 685                     item.getModel()
 686                         .observeShowComments(activity, showCommentsObserver);
 687                 }
 688                 switch (item.getType()) {
 689                     case generalData:
 690                         item.observeDate(activity, dateObserver);
 691                         item.observeDescription(activity, descriptionObserver);
 692                         item.observeTransactionComment(activity, transactionCommentObserver);
 693                         break;
 694                     case transactionRow:
 695                         item.observeAmountHint(activity, hintObserver);
 696                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 697                         Data.currencyGap.observe(activity, currencyGapObserver);
 698                         Data.locale.observe(activity, localeObserver);
 699                         item.observeCurrency(activity, currencyObserver);
 700                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 701                         item.observeComment(activity, commentObserver);
 702                         item.getModel()
 703                             .observeAccountCount(activity, accountCountObserver);
 704                         item.observeAmountValidity(activity, amountValidityObserver);
 705                         break;
 706                 }
 707             }
 708         }
 709         finally {
 710             endUpdates();
 711         }
 712     }
 713     @Override
 714     public void onDatePicked(int year, int month, int day) {
 715         final Calendar c = GregorianCalendar.getInstance();
 716         c.set(year, month, day);
 717         item.setDate(c.getTime());
 718         boolean focused = tvDescription.requestFocus();
 719         if (focused)
 720             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 721
 722     }
 723     @Override
 724     public void descriptionSelected(String description) {
 725         tvAccount.setText(description);
 726         tvAmount.requestFocus(View.FOCUS_FORWARD);
 727     }
 728 }