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