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 boolean inUpdate = false;
  85     private boolean syncingData = false;
  86     private View commentButton;
  87     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
  88         super(itemView);
  89         tvAccount = itemView.findViewById(R.id.account_row_acc_name);
  90         tvComment = itemView.findViewById(R.id.comment);
  91         new TextViewClearHelper().attachToTextView((EditText) tvComment);
  92         commentButton = itemView.findViewById(R.id.comment_button);
  93         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
  94         tvDate = itemView.findViewById(R.id.new_transaction_date);
  95         tvDescription = itemView.findViewById(R.id.new_transaction_description);
  96         lHead = itemView.findViewById(R.id.ntr_data);
  97         lAccount = itemView.findViewById(R.id.ntr_account);
  98         lPadding = itemView.findViewById(R.id.ntr_padding);
  99
 100         tvDescription.setNextFocusForwardId(View.NO_ID);
 101         tvAccount.setNextFocusForwardId(View.NO_ID);
 102         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 103
 104         tvDate.setOnClickListener(v -> pickTransactionDate());
 105
 106         mProfile = Data.profile.getValue();
 107         if (mProfile == null)
 108             throw new AssertionError();
 109
 110         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 111             if (hasFocus) {
 112                 boolean wasSyncing = syncingData;
 113                 syncingData = true;
 114                 try {
 115                     final int pos = getAdapterPosition();
 116                     adapter.updateFocusedItem(pos);
 117                     switch (v.getId()) {
 118                         case R.id.account_row_acc_name:
 119                             adapter.noteFocusIsOnAccount(pos);
 120                             break;
 121                         case R.id.account_row_acc_amounts:
 122                             adapter.noteFocusIsOnAmount(pos);
 123                             break;
 124                         case R.id.comment:
 125                             adapter.noteFocusIsOnComment(pos);
 126                             break;
 127                     }
 128                 }
 129                 finally {
 130                     syncingData = wasSyncing;
 131                 }
 132             }
 133         };
 134
 135         tvDescription.setOnFocusChangeListener(focusMonitor);
 136         tvAccount.setOnFocusChangeListener(focusMonitor);
 137         tvAmount.setOnFocusChangeListener(focusMonitor);
 138
 139         itemView.findViewById(R.id.comment_button)
 140                 .setOnClickListener(v -> {
 141                     final int pos = getAdapterPosition();
 142                     adapter.toggleComment(pos);
 143                 });
 144         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 145                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 146         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 147                 "name", true, this, mProfile);
 148
 149         // FIXME: react on configuration (locale) changes
 150         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 151                                                               .getMonetaryDecimalSeparator());
 152         decimalDot = ".";
 153
 154         final TextWatcher tw = new TextWatcher() {
 155             @Override
 156             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 157             }
 158
 159             @Override
 160             public void onTextChanged(CharSequence s, int start, int before, int count) {
 161             }
 162
 163             @Override
 164             public void afterTextChanged(Editable s) {
 165 //                debug("input", "text changed");
 166                 if (inUpdate)
 167                     return;
 168
 169                 Logger.debug("textWatcher", "calling syncData()");
 170                 syncData();
 171                 Logger.debug("textWatcher",
 172                         "syncData() returned, checking if transaction is submittable");
 173                 adapter.model.checkTransactionSubmittable(adapter);
 174                 Logger.debug("textWatcher", "done");
 175             }
 176         };
 177         final TextWatcher amountWatcher = new TextWatcher() {
 178             @Override
 179             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 180             }
 181             @Override
 182             public void onTextChanged(CharSequence s, int start, int before, int count) {
 183
 184             }
 185             @Override
 186             public void afterTextChanged(Editable s) {
 187                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 188                     // only one decimal separator is allowed
 189                     // plus and minus are allowed only at the beginning
 190                     String allowed = "0123456789";
 191                     String val = s.toString();
 192                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 193                         allowed += "-";
 194                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 195                         allowed += decimalSeparator + decimalDot;
 196
 197                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 198
 199                     syncData();
 200                     adapter.model.checkTransactionSubmittable(adapter);
 201                 }
 202             }
 203         };
 204         tvDescription.addTextChangedListener(tw);
 205         tvAccount.addTextChangedListener(tw);
 206         tvComment.addTextChangedListener(tw);
 207         tvAmount.addTextChangedListener(amountWatcher);
 208
 209         // FIXME: react on locale changes
 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     private void setEditable(Boolean editable) {
 319         tvDate.setEnabled(editable);
 320         tvDescription.setEnabled(editable);
 321         tvAccount.setEnabled(editable);
 322         tvAmount.setEnabled(editable);
 323     }
 324     private void setCommentVisible(Boolean visible) {
 325         if (visible) {
 326             // showing; show the comment view and align the comment button to it
 327             tvComment.setVisibility(View.VISIBLE);
 328             tvComment.requestFocus();
 329             ConstraintLayout.LayoutParams lp =
 330                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 331             lp.bottomToBottom = R.id.comment;
 332
 333             commentButton.setLayoutParams(lp);
 334         }
 335         else {
 336             // hiding; hide the comment comment view and align amounts layout under it
 337             tvComment.setVisibility(View.GONE);
 338             ConstraintLayout.LayoutParams lp =
 339                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 340             lp.bottomToBottom = R.id.ntr_account;   // R.id.parent doesn't work here
 341
 342             commentButton.setLayoutParams(lp);
 343         }
 344     }
 345     private void setComment(String comment) {
 346         if ((comment != null) && !comment.isEmpty())
 347             commentButton.setBackgroundResource(R.drawable.ic_comment_black_24dp);
 348         else
 349             commentButton.setBackgroundResource(R.drawable.ic_comment_gray_24dp);
 350     }
 351     private void beginUpdates() {
 352         if (inUpdate)
 353             throw new RuntimeException("Already in update mode");
 354         inUpdate = true;
 355     }
 356     private void endUpdates() {
 357         if (!inUpdate)
 358             throw new RuntimeException("Not in update mode");
 359         inUpdate = false;
 360     }
 361     /**
 362      * syncData()
 363      * <p>
 364      * Stores the data from the UI elements into the model item
 365      */
 366     private void syncData() {
 367         if (item == null)
 368             return;
 369
 370         if (syncingData) {
 371             Logger.debug("new-trans", "skipping syncData() loop");
 372             return;
 373         }
 374
 375         syncingData = true;
 376
 377         try {
 378             switch (item.getType()) {
 379                 case generalData:
 380                     item.setDate(String.valueOf(tvDate.getText()));
 381                     item.setDescription(String.valueOf(tvDescription.getText()));
 382                     break;
 383                 case transactionRow:
 384                     final LedgerTransactionAccount account = item.getAccount();
 385                     account.setAccountName(String.valueOf(tvAccount.getText()));
 386
 387                     item.setComment(String.valueOf(tvComment.getText()));
 388
 389                     // TODO: handle multiple amounts
 390                     String amount = String.valueOf(tvAmount.getText());
 391                     amount = amount.trim();
 392
 393                     if (amount.isEmpty()) {
 394                         account.resetAmount();
 395                     }
 396                     else {
 397                         try {
 398                             amount = amount.replace(decimalSeparator, decimalDot);
 399                             account.setAmount(Float.parseFloat(amount));
 400                         }
 401                         catch (NumberFormatException e) {
 402                             Logger.debug("new-trans", String.format(
 403                                     "assuming amount is not set due to number format exception. " +
 404                                     "input was '%s'", amount));
 405                             account.resetAmount();
 406                         }
 407                     }
 408
 409                     break;
 410                 case bottomFiller:
 411                     throw new RuntimeException("Should not happen");
 412             }
 413         }
 414         finally {
 415             syncingData = false;
 416         }
 417     }
 418     private void pickTransactionDate() {
 419         DatePickerFragment picker = new DatePickerFragment();
 420         picker.setFutureDates(mProfile.getFutureDates());
 421         picker.setOnDatePickedListener(this);
 422         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 423                 "datePicker");
 424     }
 425     /**
 426      * setData
 427      *
 428      * @param item updates the UI elements with the data from the model item
 429      */
 430     @SuppressLint("DefaultLocale")
 431     public void setData(NewTransactionModel.Item item) {
 432         beginUpdates();
 433         try {
 434             if (this.item != null && !this.item.equals(item)) {
 435                 this.item.stopObservingDate(dateObserver);
 436                 this.item.stopObservingDescription(descriptionObserver);
 437                 this.item.stopObservingAmountHint(hintObserver);
 438                 this.item.stopObservingEditableFlag(editableObserver);
 439                 this.item.stopObservingCommentVisible(commentVisibleObserver);
 440                 this.item.stopObservingComment(commentObserver);
 441                 this.item.getModel()
 442                          .stopObservingFocusedItem(focusedAccountObserver);
 443                 this.item.getModel()
 444                          .stopObservingAccountCount(accountCountObserver);
 445
 446                 this.item = null;
 447             }
 448
 449             switch (item.getType()) {
 450                 case generalData:
 451                     tvDate.setText(item.getFormattedDate());
 452                     tvDescription.setText(item.getDescription());
 453                     lHead.setVisibility(View.VISIBLE);
 454                     lAccount.setVisibility(View.GONE);
 455                     lPadding.setVisibility(View.GONE);
 456                     setEditable(true);
 457                     break;
 458                 case transactionRow:
 459                     LedgerTransactionAccount acc = item.getAccount();
 460                     tvAccount.setText(acc.getAccountName());
 461                     tvComment.setText(acc.getComment());
 462                     if (acc.isAmountSet()) {
 463                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 464                     }
 465                     else {
 466                         tvAmount.setText("");
 467 //                        tvAmount.setHint(R.string.zero_amount);
 468                     }
 469                     tvAmount.setHint(item.getAmountHint());
 470                     lHead.setVisibility(View.GONE);
 471                     lAccount.setVisibility(View.VISIBLE);
 472                     lPadding.setVisibility(View.GONE);
 473                     setEditable(true);
 474                     break;
 475                 case bottomFiller:
 476                     lHead.setVisibility(View.GONE);
 477                     lAccount.setVisibility(View.GONE);
 478                     lPadding.setVisibility(View.VISIBLE);
 479                     setEditable(false);
 480                     break;
 481             }
 482
 483             if (this.item == null) { // was null or has changed
 484                 this.item = item;
 485                 final NewTransactionActivity activity =
 486                         (NewTransactionActivity) tvDescription.getContext();
 487                 item.observeDate(activity, dateObserver);
 488                 item.observeDescription(activity, descriptionObserver);
 489                 item.observeAmountHint(activity, hintObserver);
 490                 item.observeEditableFlag(activity, editableObserver);
 491                 item.observeCommentVisible(activity, commentVisibleObserver);
 492                 item.observeComment(activity, commentObserver);
 493                 item.getModel()
 494                     .observeFocusedItem(activity, focusedAccountObserver);
 495                 item.getModel()
 496                     .observeAccountCount(activity, accountCountObserver);
 497             }
 498         }
 499         finally {
 500             endUpdates();
 501         }
 502     }
 503     @Override
 504     public void onDatePicked(int year, int month, int day) {
 505         final Calendar c = GregorianCalendar.getInstance();
 506         c.set(year, month, day);
 507         item.setDate(c.getTime());
 508         boolean focused = tvDescription.requestFocus();
 509         if (focused)
 510             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 511
 512     }
 513     @Override
 514     public void descriptionSelected(String description) {
 515         tvAccount.setText(description);
 516         tvAmount.requestFocus(View.FOCUS_FORWARD);
 517     }
 518 }