app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionHeaderItemHolder.java

   1 /*
   2  * Copyright © 2021 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.new_transaction;
  19
  20 import android.annotation.SuppressLint;
  21 import android.graphics.Typeface;
  22 import android.text.Editable;
  23 import android.text.TextUtils;
  24 import android.text.TextWatcher;
  25 import android.view.View;
  26 import android.widget.EditText;
  27 import android.widget.ListAdapter;
  28 import android.widget.TextView;
  29
  30 import androidx.annotation.ColorInt;
  31 import androidx.annotation.NonNull;
  32 import androidx.recyclerview.widget.RecyclerView;
  33
  34 import net.ktnx.mobileledger.R;
  35 import net.ktnx.mobileledger.databinding.NewTransactionHeaderRowBinding;
  36 import net.ktnx.mobileledger.db.TransactionDescriptionAutocompleteAdapter;
  37 import net.ktnx.mobileledger.model.Data;
  38 import net.ktnx.mobileledger.model.FutureDates;
  39 import net.ktnx.mobileledger.ui.DatePickerFragment;
  40 import net.ktnx.mobileledger.utils.Logger;
  41 import net.ktnx.mobileledger.utils.Misc;
  42 import net.ktnx.mobileledger.utils.SimpleDate;
  43
  44 import java.text.DecimalFormatSymbols;
  45 import java.text.ParseException;
  46
  47 class NewTransactionHeaderItemHolder extends NewTransactionItemViewHolder
  48         implements DatePickerFragment.DatePickedListener {
  49     private final NewTransactionHeaderRowBinding b;
  50     private boolean ignoreFocusChanges = false;
  51     private String decimalSeparator;
  52     private boolean inUpdate = false;
  53     private boolean syncingData = false;
  54     //TODO multiple amounts with different currencies per posting?
  55     NewTransactionHeaderItemHolder(@NonNull NewTransactionHeaderRowBinding b,
  56                                    NewTransactionItemsAdapter adapter) {
  57         super(b.getRoot());
  58         this.b = b;
  59
  60         b.newTransactionDescription.setNextFocusForwardId(View.NO_ID);
  61
  62         b.newTransactionDate.setOnClickListener(v -> pickTransactionDate());
  63
  64         b.transactionCommentButton.setOnClickListener(v -> {
  65             b.transactionComment.setVisibility(View.VISIBLE);
  66             b.transactionComment.requestFocus();
  67         });
  68
  69         @SuppressLint("DefaultLocale") View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
  70             final int id = v.getId();
  71             if (hasFocus) {
  72                 boolean wasSyncing = syncingData;
  73                 syncingData = true;
  74                 try {
  75                     final int pos = getBindingAdapterPosition();
  76                     if (id == R.id.transaction_comment) {
  77                         adapter.noteFocusIsOnTransactionComment(pos);
  78                     }
  79                     else if (id == R.id.new_transaction_description) {
  80                         adapter.noteFocusIsOnDescription(pos);
  81                     }
  82                     else
  83                         throw new IllegalStateException("Where is the focus? " + id);
  84                 }
  85                 finally {
  86                     syncingData = wasSyncing;
  87                 }
  88             }
  89
  90             if (id == R.id.transaction_comment) {
  91                 commentFocusChanged(b.transactionComment, hasFocus);
  92             }
  93         };
  94
  95         b.newTransactionDescription.setOnFocusChangeListener(focusMonitor);
  96         b.transactionComment.setOnFocusChangeListener(focusMonitor);
  97
  98         NewTransactionActivity activity = (NewTransactionActivity) b.getRoot()
  99                                                                     .getContext();
 100
 101         b.newTransactionDescription.setAdapter(
 102                 new TransactionDescriptionAutocompleteAdapter(activity));
 103         b.newTransactionDescription.setOnItemClickListener(
 104                 (parent, view, position, id) -> activity.descriptionSelected(
 105                         parent.getItemAtPosition(position)
 106                               .toString()));
 107
 108         decimalSeparator = "";
 109         Data.locale.observe(activity, locale -> decimalSeparator = String.valueOf(
 110                 DecimalFormatSymbols.getInstance(locale)
 111                                     .getMonetaryDecimalSeparator()));
 112
 113         final TextWatcher tw = new TextWatcher() {
 114             @Override
 115             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 116             }
 117
 118             @Override
 119             public void onTextChanged(CharSequence s, int start, int before, int count) {
 120             }
 121
 122             @Override
 123             public void afterTextChanged(Editable s) {
 124 //                debug("input", "text changed");
 125                 if (inUpdate)
 126                     return;
 127
 128                 Logger.debug("textWatcher", "calling syncData()");
 129                 if (syncData()) {
 130                     Logger.debug("textWatcher",
 131                             "syncData() returned, checking if transaction is submittable");
 132                     adapter.model.checkTransactionSubmittable(null);
 133                 }
 134                 Logger.debug("textWatcher", "done");
 135             }
 136         };
 137         b.newTransactionDescription.addTextChangedListener(tw);
 138         monitorComment(b.transactionComment);
 139
 140         commentFocusChanged(b.transactionComment, false);
 141
 142         adapter.model.getFocusInfo()
 143                      .observe(activity, this::applyFocus);
 144
 145         adapter.model.getShowComments()
 146                      .observe(activity, show -> b.transactionCommentLayout.setVisibility(
 147                              show ? View.VISIBLE : View.GONE));
 148     }
 149     private void applyFocus(NewTransactionModel.FocusInfo focusInfo) {
 150         if (ignoreFocusChanges) {
 151             Logger.debug("new-trans", "Ignoring focus change");
 152             return;
 153         }
 154         ignoreFocusChanges = true;
 155         try {
 156             if (((focusInfo == null) || (focusInfo.element == null) ||
 157                  focusInfo.position != getBindingAdapterPosition()))
 158                 return;
 159
 160             final NewTransactionModel.Item item = getItem();
 161             if (item == null)
 162                 return;
 163
 164             NewTransactionModel.Item head = item.toTransactionHead();
 165             // bad idea - double pop-up, and not really necessary.
 166             // the user can tap the input to get the calendar
 167             //if (!tvDate.hasFocus()) tvDate.requestFocus();
 168             switch (focusInfo.element) {
 169                 case TransactionComment:
 170                     b.transactionComment.setVisibility(View.VISIBLE);
 171                     b.transactionComment.requestFocus();
 172                     break;
 173                 case Description:
 174                     boolean focused = b.newTransactionDescription.requestFocus();
 175 //                            tvDescription.dismissDropDown();
 176                     if (focused)
 177                         Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
 178                                                                         .getContext());
 179                     break;
 180             }
 181         }
 182         finally {
 183             ignoreFocusChanges = false;
 184         }
 185     }
 186     private void monitorComment(EditText editText) {
 187         editText.addTextChangedListener(new TextWatcher() {
 188             @Override
 189             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 190             }
 191             @Override
 192             public void onTextChanged(CharSequence s, int start, int before, int count) {
 193             }
 194             @Override
 195             public void afterTextChanged(Editable s) {
 196 //                debug("input", "text changed");
 197                 if (inUpdate)
 198                     return;
 199
 200                 Logger.debug("textWatcher", "calling syncData()");
 201                 syncData();
 202                 Logger.debug("textWatcher",
 203                         "syncData() returned, checking if transaction is submittable");
 204                 styleComment(editText, s.toString());
 205                 Logger.debug("textWatcher", "done");
 206             }
 207         });
 208     }
 209     private void commentFocusChanged(TextView textView, boolean hasFocus) {
 210         @ColorInt int textColor;
 211         textColor = b.dummyText.getTextColors()
 212                                .getDefaultColor();
 213         if (hasFocus) {
 214             textView.setTypeface(null, Typeface.NORMAL);
 215             textView.setHint(R.string.transaction_account_comment_hint);
 216         }
 217         else {
 218             int alpha = (textColor >> 24 & 0xff);
 219             alpha = 3 * alpha / 4;
 220             textColor = (alpha << 24) | (0x00ffffff & textColor);
 221             textView.setTypeface(null, Typeface.ITALIC);
 222             textView.setHint("");
 223             if (TextUtils.isEmpty(textView.getText())) {
 224                 textView.setVisibility(View.INVISIBLE);
 225             }
 226         }
 227         textView.setTextColor(textColor);
 228
 229     }
 230     private void setEditable(Boolean editable) {
 231         b.newTransactionDate.setEnabled(editable);
 232         b.newTransactionDescription.setEnabled(editable);
 233     }
 234     private void beginUpdates() {
 235         if (inUpdate)
 236             throw new RuntimeException("Already in update mode");
 237         inUpdate = true;
 238     }
 239     private void endUpdates() {
 240         if (!inUpdate)
 241             throw new RuntimeException("Not in update mode");
 242         inUpdate = false;
 243     }
 244     /**
 245      * syncData()
 246      * <p>
 247      * Stores the data from the UI elements into the model item
 248      * Returns true if there were changes made that suggest transaction has to be
 249      * checked for being submittable
 250      */
 251     private boolean syncData() {
 252         if (syncingData) {
 253             Logger.debug("new-trans", "skipping syncData() loop");
 254             return false;
 255         }
 256
 257         if (getBindingAdapterPosition() == RecyclerView.NO_POSITION) {
 258             // probably the row was swiped out
 259             Logger.debug("new-trans", "Ignoring request to suncData(): adapter position negative");
 260             return false;
 261         }
 262
 263
 264         boolean significantChange = false;
 265
 266         syncingData = true;
 267         try {
 268             final NewTransactionModel.Item item = getItem();
 269             if (item == null)
 270                 return false;
 271
 272             NewTransactionModel.TransactionHead head = item.toTransactionHead();
 273
 274             head.setDate(String.valueOf(b.newTransactionDate.getText()));
 275
 276             // transaction description is required
 277             if (TextUtils.isEmpty(head.getDescription()) !=
 278                 TextUtils.isEmpty(b.newTransactionDescription.getText()))
 279                 significantChange = true;
 280
 281             head.setDescription(String.valueOf(b.newTransactionDescription.getText()));
 282             head.setComment(String.valueOf(b.transactionComment.getText()));
 283
 284             return significantChange;
 285         }
 286         catch (ParseException e) {
 287             throw new RuntimeException("Should not happen", e);
 288         }
 289         finally {
 290             syncingData = false;
 291         }
 292     }
 293     private void pickTransactionDate() {
 294         DatePickerFragment picker = new DatePickerFragment();
 295         picker.setFutureDates(FutureDates.valueOf(mProfile.getFutureDates()));
 296         picker.setOnDatePickedListener(this);
 297         picker.setCurrentDateFromText(b.newTransactionDate.getText());
 298         picker.show(((NewTransactionActivity) b.getRoot()
 299                                                .getContext()).getSupportFragmentManager(), null);
 300     }
 301     /**
 302      * bind
 303      *
 304      * @param item updates the UI elements with the data from the model item
 305      */
 306     @SuppressLint("DefaultLocale")
 307     public void bind(@NonNull NewTransactionModel.Item item) {
 308         beginUpdates();
 309         try {
 310             syncingData = true;
 311             try {
 312                 NewTransactionModel.TransactionHead head = item.toTransactionHead();
 313                 b.newTransactionDate.setText(head.getFormattedDate());
 314
 315                 // avoid triggering completion pop-up
 316                 ListAdapter a = b.newTransactionDescription.getAdapter();
 317                 try {
 318                     b.newTransactionDescription.setAdapter(null);
 319                     b.newTransactionDescription.setText(head.getDescription());
 320                 }
 321                 finally {
 322                     b.newTransactionDescription.setAdapter(
 323                             (TransactionDescriptionAutocompleteAdapter) a);
 324                 }
 325
 326                 final String comment = head.getComment();
 327                 b.transactionComment.setText(comment);
 328                 styleComment(b.transactionComment, comment); // would hide or make it visible
 329
 330                 setEditable(true);
 331
 332                 NewTransactionItemsAdapter adapter =
 333                         (NewTransactionItemsAdapter) getBindingAdapter();
 334                 if (adapter != null)
 335                     applyFocus(adapter.model.getFocusInfo()
 336                                             .getValue());
 337             }
 338             finally {
 339                 syncingData = false;
 340             }
 341         }
 342         finally {
 343             endUpdates();
 344         }
 345     }
 346     private void styleComment(EditText editText, String comment) {
 347         final View focusedView = editText.findFocus();
 348         editText.setTypeface(null, (focusedView == editText) ? Typeface.NORMAL : Typeface.ITALIC);
 349         editText.setVisibility(
 350                 ((focusedView != editText) && TextUtils.isEmpty(comment)) ? View.INVISIBLE
 351                                                                           : View.VISIBLE);
 352     }
 353     @Override
 354     public void onDatePicked(int year, int month, int day) {
 355         final NewTransactionModel.Item item = getItem();
 356         if (item == null)
 357             return;
 358
 359         final NewTransactionModel.TransactionHead head = item.toTransactionHead();
 360         head.setDate(new SimpleDate(year, month + 1, day));
 361         b.newTransactionDate.setText(head.getFormattedDate());
 362
 363         boolean focused = b.newTransactionDescription.requestFocus();
 364         if (focused)
 365             Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
 366                                                             .getContext());
 367
 368     }
 369 }