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.os.Build;
  22 import android.text.Editable;
  23 import android.text.TextWatcher;
  24 import android.text.method.DigitsKeyListener;
  25 import android.view.View;
  26 import android.view.ViewGroup;
  27 import android.view.inputmethod.EditorInfo;
  28 import android.widget.AutoCompleteTextView;
  29 import android.widget.EditText;
  30 import android.widget.FrameLayout;
  31 import android.widget.LinearLayout;
  32 import android.widget.TextView;
  33
  34 import androidx.annotation.NonNull;
  35 import androidx.appcompat.app.AppCompatActivity;
  36 import androidx.constraintlayout.widget.ConstraintLayout;
  37 import androidx.lifecycle.Observer;
  38 import androidx.recyclerview.widget.RecyclerView;
  39
  40 import net.ktnx.mobileledger.R;
  41 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  42 import net.ktnx.mobileledger.model.Data;
  43 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  44 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  45 import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
  46 import net.ktnx.mobileledger.ui.DatePickerFragment;
  47 import net.ktnx.mobileledger.ui.TextViewClearHelper;
  48 import net.ktnx.mobileledger.utils.Colors;
  49 import net.ktnx.mobileledger.utils.Logger;
  50 import net.ktnx.mobileledger.utils.MLDB;
  51 import net.ktnx.mobileledger.utils.Misc;
  52
  53 import java.text.DecimalFormatSymbols;
  54 import java.util.Calendar;
  55 import java.util.Date;
  56 import java.util.GregorianCalendar;
  57 import java.util.Locale;
  58
  59 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  60
  61 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  62         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  63     private final String decimalSeparator;
  64     private final String decimalDot;
  65     private NewTransactionModel.Item item;
  66     private TextView tvDate;
  67     private AutoCompleteTextView tvDescription;
  68     private AutoCompleteTextView tvAccount;
  69     private TextView tvComment;
  70     private EditText tvAmount;
  71     private LinearLayout lHead;
  72     private ViewGroup lAccount;
  73     private FrameLayout lPadding;
  74     private MobileLedgerProfile mProfile;
  75     private Date date;
  76     private Observer<Date> dateObserver;
  77     private Observer<String> descriptionObserver;
  78     private Observer<String> hintObserver;
  79     private Observer<Integer> focusedAccountObserver;
  80     private Observer<Integer> accountCountObserver;
  81     private Observer<Boolean> editableObserver;
  82     private Observer<Boolean> commentVisibleObserver;
  83     private Observer<String> commentObserver;
  84     private Observer<Locale> localeObserver;
  85     private boolean inUpdate = false;
  86     private boolean syncingData = false;
  87     private View commentButton;
  88     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
  89         super(itemView);
  90         tvAccount = itemView.findViewById(R.id.account_row_acc_name);
  91         tvComment = itemView.findViewById(R.id.comment);
  92         new TextViewClearHelper().attachToTextView((EditText) tvComment);
  93         commentButton = itemView.findViewById(R.id.comment_button);
  94         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
  95         tvDate = itemView.findViewById(R.id.new_transaction_date);
  96         tvDescription = itemView.findViewById(R.id.new_transaction_description);
  97         lHead = itemView.findViewById(R.id.ntr_data);
  98         lAccount = itemView.findViewById(R.id.ntr_account);
  99         lPadding = itemView.findViewById(R.id.ntr_padding);
 100
 101         tvDescription.setNextFocusForwardId(View.NO_ID);
 102         tvAccount.setNextFocusForwardId(View.NO_ID);
 103         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 104
 105         tvDate.setOnClickListener(v -> pickTransactionDate());
 106
 107         mProfile = Data.profile.getValue();
 108         if (mProfile == null)
 109             throw new AssertionError();
 110
 111         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 112             if (hasFocus) {
 113                 boolean wasSyncing = syncingData;
 114                 syncingData = true;
 115                 try {
 116                     final int pos = getAdapterPosition();
 117                     adapter.updateFocusedItem(pos);
 118                     switch (v.getId()) {
 119                         case R.id.account_row_acc_name:
 120                             adapter.noteFocusIsOnAccount(pos);
 121                             break;
 122                         case R.id.account_row_acc_amounts:
 123                             adapter.noteFocusIsOnAmount(pos);
 124                             break;
 125                         case R.id.comment:
 126                             adapter.noteFocusIsOnComment(pos);
 127                             break;
 128                     }
 129                 }
 130                 finally {
 131                     syncingData = wasSyncing;
 132                 }
 133             }
 134         };
 135
 136         tvDescription.setOnFocusChangeListener(focusMonitor);
 137         tvAccount.setOnFocusChangeListener(focusMonitor);
 138         tvAmount.setOnFocusChangeListener(focusMonitor);
 139
 140         itemView.findViewById(R.id.comment_button)
 141                 .setOnClickListener(v -> {
 142                     final int pos = getAdapterPosition();
 143                     adapter.toggleComment(pos);
 144                 });
 145         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 146                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 147         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 148                 "name", true, this, mProfile);
 149
 150         // FIXME: react on configuration (locale) changes
 151         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 152                                                               .getMonetaryDecimalSeparator());
 153         decimalDot = ".";
 154
 155         final TextWatcher tw = new TextWatcher() {
 156             @Override
 157             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 158             }
 159
 160             @Override
 161             public void onTextChanged(CharSequence s, int start, int before, int count) {
 162             }
 163
 164             @Override
 165             public void afterTextChanged(Editable s) {
 166 //                debug("input", "text changed");
 167                 if (inUpdate)
 168                     return;
 169
 170                 Logger.debug("textWatcher", "calling syncData()");
 171                 syncData();
 172                 Logger.debug("textWatcher",
 173                         "syncData() returned, checking if transaction is submittable");
 174                 adapter.model.checkTransactionSubmittable(adapter);
 175                 Logger.debug("textWatcher", "done");
 176             }
 177         };
 178         final TextWatcher amountWatcher = new TextWatcher() {
 179             @Override
 180             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 181             }
 182             @Override
 183             public void onTextChanged(CharSequence s, int start, int before, int count) {
 184
 185             }
 186             @Override
 187             public void afterTextChanged(Editable s) {
 188                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 189                     // only one decimal separator is allowed
 190                     // plus and minus are allowed only at the beginning
 191                     String allowed = "0123456789";
 192                     String val = s.toString();
 193                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 194                         allowed += "-";
 195                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 196                         allowed += decimalSeparator + decimalDot;
 197
 198                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 199
 200                     syncData();
 201                     adapter.model.checkTransactionSubmittable(adapter);
 202                 }
 203             }
 204         };
 205         tvDescription.addTextChangedListener(tw);
 206         tvAccount.addTextChangedListener(tw);
 207         tvComment.addTextChangedListener(tw);
 208         tvAmount.addTextChangedListener(amountWatcher);
 209
 210         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 211             tvAmount.setKeyListener(DigitsKeyListener.getInstance(Locale.getDefault(), true, true));
 212         else
 213             tvAmount.setKeyListener(
 214                     DigitsKeyListener.getInstance("0123456789+-" + decimalSeparator + decimalDot));
 215
 216         dateObserver = date -> {
 217             if (syncingData)
 218                 return;
 219             syncingData = true;
 220             try {
 221                 tvDate.setText(item.getFormattedDate());
 222             }
 223             finally {
 224                 syncingData = false;
 225             }
 226         };
 227         descriptionObserver = description -> {
 228             if (syncingData)
 229                 return;
 230             syncingData = true;
 231             try {
 232                 tvDescription.setText(description);
 233             }
 234             finally {
 235                 syncingData = false;
 236             }
 237         };
 238         hintObserver = hint -> {
 239             if (syncingData)
 240                 return;
 241             syncingData = true;
 242             try {
 243                 if (hint == null)
 244                     tvAmount.setHint(R.string.zero_amount);
 245                 else
 246                     tvAmount.setHint(hint);
 247             }
 248             finally {
 249                 syncingData = false;
 250             }
 251         };
 252         editableObserver = this::setEditable;
 253         commentVisibleObserver = this::setCommentVisible;
 254         commentObserver = this::setComment;
 255         focusedAccountObserver = index -> {
 256             if ((index != null) && index.equals(getAdapterPosition())) {
 257                 switch (item.getType()) {
 258                     case generalData:
 259                         // bad idea - double pop-up, and not really necessary.
 260                         // the user can tap the input to get the calendar
 261                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 262                         boolean focused = tvDescription.requestFocus();
 263                         tvDescription.dismissDropDown();
 264                         if (focused)
 265                             Misc.showSoftKeyboard(
 266                                     (NewTransactionActivity) tvDescription.getContext());
 267                         break;
 268                     case transactionRow:
 269                         // do nothing if a row element already has the focus
 270                         if (!itemView.hasFocus()) {
 271                             switch (item.getFocusedElement()) {
 272                                 case Amount:
 273                                     tvAmount.requestFocus();
 274                                     break;
 275                                 case Comment:
 276                                     tvComment.requestFocus();
 277                                     break;
 278                                 case Account:
 279                                     focused = tvAccount.requestFocus();
 280                                     tvAccount.dismissDropDown();
 281                                     if (focused)
 282                                         Misc.showSoftKeyboard(
 283                                                 (NewTransactionActivity) tvAccount.getContext());
 284                                     break;
 285                             }
 286                         }
 287
 288                         break;
 289                 }
 290             }
 291         };
 292         accountCountObserver = count -> {
 293             final int adapterPosition = getAdapterPosition();
 294             final int layoutPosition = getLayoutPosition();
 295             Logger.debug("holder",
 296                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 297                             adapterPosition, layoutPosition, item.getType()
 298                                                                  .toString()
 299                                                                  .concat(item.getType() ==
 300                                                                          ItemType.transactionRow
 301                                                                          ? String.format(Locale.US,
 302                                                                          "'%s'=%s",
 303                                                                          item.getAccount()
 304                                                                              .getAccountName(),
 305                                                                          item.getAccount()
 306                                                                              .isAmountSet()
 307                                                                          ? String.format(Locale.US,
 308                                                                                  "%.2f",
 309                                                                                  item.getAccount()
 310                                                                                      .getAmount())
 311                                                                          : "unset") : "")));
 312             if (adapterPosition == count)
 313                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 314             else
 315                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 316         };
 317
 318         localeObserver = locale -> {
 319             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 320                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 321         };
 322     }
 323     private void setEditable(Boolean editable) {
 324         tvDate.setEnabled(editable);
 325         tvDescription.setEnabled(editable);
 326         tvAccount.setEnabled(editable);
 327         tvAmount.setEnabled(editable);
 328     }
 329     private void setCommentVisible(Boolean visible) {
 330         if (visible) {
 331             // showing; show the comment view and align the comment button to it
 332             tvComment.setVisibility(View.VISIBLE);
 333             tvComment.requestFocus();
 334             ConstraintLayout.LayoutParams lp =
 335                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 336             lp.bottomToBottom = R.id.comment;
 337
 338             commentButton.setLayoutParams(lp);
 339         }
 340         else {
 341             // hiding; hide the comment comment view and align amounts layout under it
 342             tvComment.setVisibility(View.GONE);
 343             ConstraintLayout.LayoutParams lp =
 344                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 345             lp.bottomToBottom = R.id.ntr_account;   // R.id.parent doesn't work here
 346
 347             commentButton.setLayoutParams(lp);
 348         }
 349     }
 350     private void setComment(String comment) {
 351         if ((comment != null) && !comment.isEmpty())
 352             commentButton.setBackgroundResource(R.drawable.ic_comment_black_24dp);
 353         else
 354             commentButton.setBackgroundResource(R.drawable.ic_comment_gray_24dp);
 355     }
 356     private void beginUpdates() {
 357         if (inUpdate)
 358             throw new RuntimeException("Already in update mode");
 359         inUpdate = true;
 360     }
 361     private void endUpdates() {
 362         if (!inUpdate)
 363             throw new RuntimeException("Not in update mode");
 364         inUpdate = false;
 365     }
 366     /**
 367      * syncData()
 368      * <p>
 369      * Stores the data from the UI elements into the model item
 370      */
 371     private void syncData() {
 372         if (item == null)
 373             return;
 374
 375         if (syncingData) {
 376             Logger.debug("new-trans", "skipping syncData() loop");
 377             return;
 378         }
 379
 380         syncingData = true;
 381
 382         try {
 383             switch (item.getType()) {
 384                 case generalData:
 385                     item.setDate(String.valueOf(tvDate.getText()));
 386                     item.setDescription(String.valueOf(tvDescription.getText()));
 387                     break;
 388                 case transactionRow:
 389                     final LedgerTransactionAccount account = item.getAccount();
 390                     account.setAccountName(String.valueOf(tvAccount.getText()));
 391
 392                     item.setComment(String.valueOf(tvComment.getText()));
 393
 394                     // TODO: handle multiple amounts
 395                     String amount = String.valueOf(tvAmount.getText());
 396                     amount = amount.trim();
 397
 398                     if (amount.isEmpty()) {
 399                         account.resetAmount();
 400                     }
 401                     else {
 402                         try {
 403                             amount = amount.replace(decimalSeparator, decimalDot);
 404                             account.setAmount(Float.parseFloat(amount));
 405                         }
 406                         catch (NumberFormatException e) {
 407                             Logger.debug("new-trans", String.format(
 408                                     "assuming amount is not set due to number format exception. " +
 409                                     "input was '%s'", amount));
 410                             account.resetAmount();
 411                         }
 412                     }
 413
 414                     break;
 415                 case bottomFiller:
 416                     throw new RuntimeException("Should not happen");
 417             }
 418         }
 419         finally {
 420             syncingData = false;
 421         }
 422     }
 423     private void pickTransactionDate() {
 424         DatePickerFragment picker = new DatePickerFragment();
 425         picker.setFutureDates(mProfile.getFutureDates());
 426         picker.setOnDatePickedListener(this);
 427         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 428                 "datePicker");
 429     }
 430     /**
 431      * setData
 432      *
 433      * @param item updates the UI elements with the data from the model item
 434      */
 435     @SuppressLint("DefaultLocale")
 436     public void setData(NewTransactionModel.Item item) {
 437         beginUpdates();
 438         try {
 439             if (this.item != null && !this.item.equals(item)) {
 440                 this.item.stopObservingDate(dateObserver);
 441                 this.item.stopObservingDescription(descriptionObserver);
 442                 this.item.stopObservingAmountHint(hintObserver);
 443                 this.item.stopObservingEditableFlag(editableObserver);
 444                 this.item.stopObservingCommentVisible(commentVisibleObserver);
 445                 this.item.stopObservingComment(commentObserver);
 446                 this.item.getModel()
 447                          .stopObservingFocusedItem(focusedAccountObserver);
 448                 this.item.getModel()
 449                          .stopObservingAccountCount(accountCountObserver);
 450                 Data.locale.removeObserver(localeObserver);
 451
 452                 this.item = null;
 453             }
 454
 455             switch (item.getType()) {
 456                 case generalData:
 457                     tvDate.setText(item.getFormattedDate());
 458                     tvDescription.setText(item.getDescription());
 459                     lHead.setVisibility(View.VISIBLE);
 460                     lAccount.setVisibility(View.GONE);
 461                     lPadding.setVisibility(View.GONE);
 462                     setEditable(true);
 463                     break;
 464                 case transactionRow:
 465                     LedgerTransactionAccount acc = item.getAccount();
 466                     tvAccount.setText(acc.getAccountName());
 467                     tvComment.setText(acc.getComment());
 468                     if (acc.isAmountSet()) {
 469                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 470                     }
 471                     else {
 472                         tvAmount.setText("");
 473 //                        tvAmount.setHint(R.string.zero_amount);
 474                     }
 475                     tvAmount.setHint(item.getAmountHint());
 476                     lHead.setVisibility(View.GONE);
 477                     lAccount.setVisibility(View.VISIBLE);
 478                     lPadding.setVisibility(View.GONE);
 479                     setEditable(true);
 480                     break;
 481                 case bottomFiller:
 482                     lHead.setVisibility(View.GONE);
 483                     lAccount.setVisibility(View.GONE);
 484                     lPadding.setVisibility(View.VISIBLE);
 485                     setEditable(false);
 486                     break;
 487             }
 488
 489             if (this.item == null) { // was null or has changed
 490                 this.item = item;
 491                 final NewTransactionActivity activity =
 492                         (NewTransactionActivity) tvDescription.getContext();
 493                 item.observeDate(activity, dateObserver);
 494                 item.observeDescription(activity, descriptionObserver);
 495                 item.observeAmountHint(activity, hintObserver);
 496                 item.observeEditableFlag(activity, editableObserver);
 497                 item.observeCommentVisible(activity, commentVisibleObserver);
 498                 item.observeComment(activity, commentObserver);
 499                 item.getModel()
 500                     .observeFocusedItem(activity, focusedAccountObserver);
 501                 item.getModel()
 502                     .observeAccountCount(activity, accountCountObserver);
 503                 Data.locale.observe(activity, localeObserver);
 504             }
 505         }
 506         finally {
 507             endUpdates();
 508         }
 509     }
 510     @Override
 511     public void onDatePicked(int year, int month, int day) {
 512         final Calendar c = GregorianCalendar.getInstance();
 513         c.set(year, month, day);
 514         item.setDate(c.getTime());
 515         boolean focused = tvDescription.requestFocus();
 516         if (focused)
 517             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 518
 519     }
 520     @Override
 521     public void descriptionSelected(String description) {
 522         tvAccount.setText(description);
 523         tvAmount.requestFocus(View.FOCUS_FORWARD);
 524     }
 525 }