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.text.Editable;
  22 import android.text.TextWatcher;
  23 import android.view.View;
  24 import android.view.inputmethod.EditorInfo;
  25 import android.widget.AutoCompleteTextView;
  26 import android.widget.FrameLayout;
  27 import android.widget.LinearLayout;
  28 import android.widget.TextView;
  29
  30 import androidx.annotation.NonNull;
  31 import androidx.constraintlayout.widget.ConstraintLayout;
  32 import androidx.lifecycle.Observer;
  33 import androidx.recyclerview.widget.RecyclerView;
  34
  35 import net.ktnx.mobileledger.R;
  36 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  37 import net.ktnx.mobileledger.model.Data;
  38 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  39 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  40 import net.ktnx.mobileledger.ui.DatePickerFragment;
  41 import net.ktnx.mobileledger.utils.Logger;
  42 import net.ktnx.mobileledger.utils.MLDB;
  43 import net.ktnx.mobileledger.utils.Misc;
  44
  45 import java.util.Calendar;
  46 import java.util.Date;
  47 import java.util.GregorianCalendar;
  48 import java.util.Locale;
  49
  50 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  51         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  52     private NewTransactionModel.Item item;
  53     private TextView tvDate;
  54     private AutoCompleteTextView tvDescription;
  55     private AutoCompleteTextView tvAccount;
  56     private TextView tvAmount;
  57     private ConstraintLayout lHead;
  58     private LinearLayout lAccount;
  59     private FrameLayout lPadding;
  60     private MobileLedgerProfile mProfile;
  61     private Date date;
  62     private Observer<Date> dateObserver;
  63     private Observer<String> descriptionObserver;
  64     private Observer<String> hintObserver;
  65     private Observer<Integer> focusedAccountObserver;
  66     private Observer<Integer> accountCountObserver;
  67     private Observer<Boolean> editableObserver;
  68     private boolean inUpdate = false;
  69     private boolean syncingData = false;
  70     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
  71         super(itemView);
  72         tvAccount = itemView.findViewById(R.id.account_row_acc_name);
  73         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
  74         tvDate = itemView.findViewById(R.id.new_transaction_date);
  75         tvDescription = itemView.findViewById(R.id.new_transaction_description);
  76         lHead = itemView.findViewById(R.id.ntr_data);
  77         lAccount = itemView.findViewById(R.id.ntr_account);
  78         lPadding = itemView.findViewById(R.id.ntr_padding);
  79
  80         tvDescription.setNextFocusForwardId(View.NO_ID);
  81         tvAccount.setNextFocusForwardId(View.NO_ID);
  82         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
  83
  84         tvDate.setOnFocusChangeListener((v, hasFocus) -> {
  85             if (hasFocus)
  86                 pickTransactionDate();
  87         });
  88         tvDate.setOnClickListener(v -> pickTransactionDate());
  89
  90         mProfile = Data.profile.getValue();
  91         if (mProfile == null)
  92             throw new AssertionError();
  93
  94         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
  95                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
  96         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
  97                 "name", true, this, mProfile);
  98
  99         final TextWatcher tw = new TextWatcher() {
 100             @Override
 101             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 102             }
 103
 104             @Override
 105             public void onTextChanged(CharSequence s, int start, int before, int count) {
 106             }
 107
 108             @Override
 109             public void afterTextChanged(Editable s) {
 110 //                debug("input", "text changed");
 111                 if (inUpdate)
 112                     return;
 113
 114                 Logger.debug("textWatcher", "calling syncData()");
 115                 syncData();
 116                 Logger.debug("textWatcher",
 117                         "syncData() returned, checking if transaction is submittable");
 118                 adapter.model.checkTransactionSubmittable(adapter);
 119                 Logger.debug("textWatcher", "done");
 120             }
 121         };
 122         tvDescription.addTextChangedListener(tw);
 123         tvAccount.addTextChangedListener(tw);
 124         tvAmount.addTextChangedListener(tw);
 125
 126         dateObserver = date -> {
 127             if (syncingData)
 128                 return;
 129             syncingData = true;
 130             try {
 131                 tvDate.setText(item.getFormattedDate());
 132             }
 133             finally {
 134                 syncingData = false;
 135             }
 136         };
 137         descriptionObserver = description -> {
 138             if (syncingData)
 139                 return;
 140             syncingData = true;
 141             try {
 142                 tvDescription.setText(description);
 143             }
 144             finally {
 145                 syncingData = false;
 146             }
 147         };
 148         hintObserver = hint -> {
 149             if (syncingData)
 150                 return;
 151             syncingData = true;
 152             try {
 153                 if (hint == null)
 154                     hint = tvAmount.getResources()
 155                                    .getString(R.string.zero_amount);
 156                 tvAmount.setHint(hint);
 157             }
 158             finally {
 159                 syncingData = false;
 160             }
 161         };
 162         editableObserver = this::setEditable;
 163         focusedAccountObserver = index -> {
 164             if ((index != null) && index.equals(getAdapterPosition())) {
 165                 switch (item.getType()) {
 166                     case generalData:
 167                         // bad idea - double pop-up, and not really necessary.
 168                         // the user can tap the input to get the calendar
 169                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 170                         boolean focused = tvDescription.requestFocus();
 171                         tvDescription.dismissDropDown();
 172                         if (focused)
 173                             Misc.showSoftKeyboard(
 174                                     (NewTransactionActivity) tvDescription.getContext());
 175                         break;
 176                     case transactionRow:
 177                         focused = tvAccount.requestFocus();
 178                         tvAccount.dismissDropDown();
 179                         if (focused)
 180                             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 181
 182                         break;
 183                 }
 184             }
 185         };
 186         accountCountObserver = count -> {
 187             final int adapterPosition = getAdapterPosition();
 188             final int layoutPosition = getLayoutPosition();
 189             Logger.debug("holder",
 190                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 191                             adapterPosition, layoutPosition, item.getType()
 192                                                                  .toString()
 193                                                                  .concat(item.getType() ==
 194                                                                          NewTransactionModel.ItemType.transactionRow
 195                                                                          ? String.format(Locale.US,
 196                                                                          "'%s'=%s",
 197                                                                          item.getAccount()
 198                                                                              .getAccountName(),
 199                                                                          item.getAccount()
 200                                                                              .isAmountSet()
 201                                                                          ? String.format(Locale.US,
 202                                                                                  "%.2f",
 203                                                                                  item.getAccount()
 204                                                                                      .getAmount())
 205                                                                          : "unset") : "")));
 206             if (adapterPosition == count)
 207                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 208             else
 209                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 210         };
 211     }
 212     private void setEditable(Boolean editable) {
 213         tvDate.setEnabled(editable);
 214         tvDescription.setEnabled(editable);
 215         tvAccount.setEnabled(editable);
 216         tvAmount.setEnabled(editable);
 217     }
 218     private void beginUpdates() {
 219         if (inUpdate)
 220             throw new RuntimeException("Already in update mode");
 221         inUpdate = true;
 222     }
 223     private void endUpdates() {
 224         if (!inUpdate)
 225             throw new RuntimeException("Not in update mode");
 226         inUpdate = false;
 227     }
 228     /**
 229      * syncData()
 230      * <p>
 231      * Stores the data from the UI elements into the model item
 232      */
 233     private void syncData() {
 234         if (item == null)
 235             return;
 236
 237         if (syncingData) {
 238             Logger.debug("new-trans", "skipping syncData() loop");
 239             return;
 240         }
 241
 242         syncingData = true;
 243
 244         try {
 245             switch (item.getType()) {
 246                 case generalData:
 247                     item.setDate(String.valueOf(tvDate.getText()));
 248                     item.setDescription(String.valueOf(tvDescription.getText()));
 249                     break;
 250                 case transactionRow:
 251                     item.getAccount()
 252                         .setAccountName(String.valueOf(tvAccount.getText()));
 253
 254                     // TODO: handle multiple amounts
 255                     String amount = String.valueOf(tvAmount.getText());
 256                     amount = amount.trim();
 257
 258                     if (!amount.isEmpty()) {
 259                         try {
 260                             item.getAccount()
 261                                 .setAmount(Float.parseFloat(amount));
 262                         }
 263                         catch (NumberFormatException e) {
 264                             Logger.debug("new-trans", String.format(
 265                                     "assuming amount is not set due to number format exception. " +
 266                                     "input was '%s'",
 267                                     amount));
 268                             item.getAccount()
 269                                 .resetAmount();
 270                         }
 271                     }
 272                     else
 273                         item.getAccount()
 274                             .resetAmount();
 275
 276                     break;
 277                 case bottomFiller:
 278                     throw new RuntimeException("Should not happen");
 279             }
 280         }
 281         finally {
 282             syncingData = false;
 283         }
 284     }
 285     private void pickTransactionDate() {
 286         DatePickerFragment picker = new DatePickerFragment();
 287         picker.setOnDatePickedListener(this);
 288         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 289                 "datePicker");
 290     }
 291     /**
 292      * setData
 293      *
 294      * @param item updates the UI elements with the data from the model item
 295      */
 296     @SuppressLint("DefaultLocale")
 297     public void setData(NewTransactionModel.Item item) {
 298         beginUpdates();
 299         try {
 300             if (this.item != null && !this.item.equals(item)) {
 301                 this.item.stopObservingDate(dateObserver);
 302                 this.item.stopObservingDescription(descriptionObserver);
 303                 this.item.stopObservingAmountHint(hintObserver);
 304                 this.item.stopObservingEditableFlag(editableObserver);
 305                 this.item.getModel()
 306                          .stopObservingFocusedItem(focusedAccountObserver);
 307                 this.item.getModel()
 308                          .stopObservingAccountCount(accountCountObserver);
 309
 310                 this.item = null;
 311             }
 312
 313             switch (item.getType()) {
 314                 case generalData:
 315                     tvDate.setText(item.getFormattedDate());
 316                     tvDescription.setText(item.getDescription());
 317                     lHead.setVisibility(View.VISIBLE);
 318                     lAccount.setVisibility(View.GONE);
 319                     lPadding.setVisibility(View.GONE);
 320                     setEditable(true);
 321                     break;
 322                 case transactionRow:
 323                     LedgerTransactionAccount acc = item.getAccount();
 324                     tvAccount.setText(acc.getAccountName());
 325                     tvAmount.setText(
 326                             acc.isAmountSet() ? String.format("%1.2f", acc.getAmount()) : "");
 327                     lHead.setVisibility(View.GONE);
 328                     lAccount.setVisibility(View.VISIBLE);
 329                     lPadding.setVisibility(View.GONE);
 330                     setEditable(true);
 331                     break;
 332                 case bottomFiller:
 333                     lHead.setVisibility(View.GONE);
 334                     lAccount.setVisibility(View.GONE);
 335                     lPadding.setVisibility(View.VISIBLE);
 336                     setEditable(false);
 337                     break;
 338             }
 339
 340             if (this.item == null) { // was null or has changed
 341                 this.item = item;
 342                 final NewTransactionActivity activity =
 343                         (NewTransactionActivity) tvDescription.getContext();
 344                 item.observeDate(activity, dateObserver);
 345                 item.observeDescription(activity, descriptionObserver);
 346                 item.observeAmountHint(activity, hintObserver);
 347                 item.observeEditableFlag(activity, editableObserver);
 348                 item.getModel()
 349                     .observeFocusedItem(activity, focusedAccountObserver);
 350                 item.getModel()
 351                     .observeAccountCount(activity, accountCountObserver);
 352             }
 353         }
 354         finally {
 355             endUpdates();
 356         }
 357     }
 358     @Override
 359     public void onDatePicked(int year, int month, int day) {
 360         final Calendar c = GregorianCalendar.getInstance();
 361         c.set(year, month, day);
 362         item.setDate(c.getTime());
 363         boolean focused = tvDescription.requestFocus();
 364         if (focused)
 365             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 366
 367     }
 368     @Override
 369     public void descriptionSelected(String description) {
 370         tvAccount.setText(description);
 371         tvAmount.requestFocus(View.FOCUS_FORWARD);
 372     }
 373 }