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