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.content.Context;
  21 import android.text.Editable;
  22 import android.text.TextWatcher;
  23 import android.view.View;
  24 import android.view.inputmethod.EditorInfo;
  25 import android.view.inputmethod.InputMethodManager;
  26 import android.widget.AutoCompleteTextView;
  27 import android.widget.FrameLayout;
  28 import android.widget.LinearLayout;
  29 import android.widget.TextView;
  30
  31 import androidx.annotation.NonNull;
  32 import androidx.constraintlayout.widget.ConstraintLayout;
  33 import androidx.lifecycle.Observer;
  34 import androidx.recyclerview.widget.RecyclerView;
  35
  36 import net.ktnx.mobileledger.R;
  37 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  38 import net.ktnx.mobileledger.model.Data;
  39 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  40 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  41 import net.ktnx.mobileledger.ui.DatePickerFragment;
  42 import net.ktnx.mobileledger.utils.Logger;
  43 import net.ktnx.mobileledger.utils.MLDB;
  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 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         focusedAccountObserver = index -> {
 153             if ((index != null) && index.equals(getAdapterPosition())) {
 154                 switch (item.getType()) {
 155                     case generalData:
 156                         tvDate.requestFocus();
 157                         break;
 158                     case transactionRow:
 159                         tvAccount.requestFocus();
 160                         tvAccount.dismissDropDown();
 161                         break;
 162                 }
 163             }
 164         };
 165         accountCountObserver = count -> {
 166             if (getAdapterPosition() == count) tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 167             else tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 168         };
 169     }
 170     private void beginUpdates() {
 171         if (inUpdate) throw new RuntimeException("Already in update mode");
 172         inUpdate = true;
 173     }
 174     private void endUpdates() {
 175         if (!inUpdate) throw new RuntimeException("Not in update mode");
 176         inUpdate = false;
 177     }
 178     /**
 179      * syncData()
 180      * <p>
 181      * Stores the data from the UI elements into the model item
 182      */
 183     private void syncData() {
 184         if (item == null) return;
 185
 186         if (syncingData) {
 187             Logger.debug("new-trans", "skipping syncData() loop");
 188             return;
 189         }
 190
 191         syncingData = true;
 192
 193         try {
 194             switch (item.getType()) {
 195                 case generalData:
 196                     item.setDate(String.valueOf(tvDate.getText()));
 197                     item.setDescription(String.valueOf(tvDescription.getText()));
 198                     break;
 199                 case transactionRow:
 200                     item.getAccount()
 201                         .setAccountName(String.valueOf(tvAccount.getText()));
 202
 203                     // TODO: handle multiple amounts
 204                     String amount = String.valueOf(tvAmount.getText());
 205                     amount = amount.trim();
 206
 207                     if (!amount.isEmpty()) item.getAccount()
 208                                                .setAmount(Float.parseFloat(amount));
 209                     else item.getAccount()
 210                              .resetAmount();
 211
 212                     break;
 213                 case bottomFiller:
 214                     throw new RuntimeException("Should not happen");
 215             }
 216         }
 217         finally {
 218             syncingData = false;
 219         }
 220     }
 221     private void pickTransactionDate() {
 222         DatePickerFragment picker = new DatePickerFragment();
 223         picker.setOnDatePickedListener(this);
 224         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 225                 "datePicker");
 226     }
 227     /**
 228      * setData
 229      *
 230      * @param item updates the UI elements with the data from the model item
 231      */
 232     public void setData(NewTransactionModel.Item item) {
 233         beginUpdates();
 234         try {
 235             if (this.item != null && !this.item.equals(item)) {
 236                 this.item.stopObservingDate(dateObserver);
 237                 this.item.stopObservingDescription(descriptionObserver);
 238                 this.item.stopObservingAmountHint(hintObserver);
 239                 this.item.getModel()
 240                          .stopObservingFocusedItem(focusedAccountObserver);
 241                 this.item.getModel()
 242                          .stopObservingAccountCount(accountCountObserver);
 243
 244                 this.item = null;
 245             }
 246
 247             switch (item.getType()) {
 248                 case generalData:
 249                     tvDate.setText(item.getFormattedDate());
 250                     tvDescription.setText(item.getDescription());
 251                     lHead.setVisibility(View.VISIBLE);
 252                     lAccount.setVisibility(View.GONE);
 253                     lPadding.setVisibility(View.GONE);
 254                     break;
 255                 case transactionRow:
 256                     LedgerTransactionAccount acc = item.getAccount();
 257                     tvAccount.setText(acc.getAccountName());
 258                     tvAmount.setText(
 259                             acc.isAmountSet() ? String.format(Locale.US, "%1.2f", acc.getAmount())
 260                                               : "");
 261                     lHead.setVisibility(View.GONE);
 262                     lAccount.setVisibility(View.VISIBLE);
 263                     lPadding.setVisibility(View.GONE);
 264                     break;
 265                 case bottomFiller:
 266                     lHead.setVisibility(View.GONE);
 267                     lAccount.setVisibility(View.GONE);
 268                     lPadding.setVisibility(View.VISIBLE);
 269                     break;
 270             }
 271
 272             if (this.item == null) { // was null or has changed
 273                 this.item = item;
 274                 final NewTransactionActivity activity =
 275                         (NewTransactionActivity) tvDescription.getContext();
 276                 item.observeDate(activity, dateObserver);
 277                 item.observeDescription(activity, descriptionObserver);
 278                 item.observeAmountHint(activity, hintObserver);
 279                 item.getModel()
 280                     .observeFocusedItem(activity, focusedAccountObserver);
 281                 item.getModel()
 282                     .observeAccountCount(activity, accountCountObserver);
 283             }
 284         }
 285         finally {
 286             endUpdates();
 287         }
 288     }
 289     @Override
 290     public void onDatePicked(int year, int month, int day) {
 291         final Calendar c = GregorianCalendar.getInstance();
 292         c.set(year, month, day);
 293         item.setDate(c.getTime());
 294         boolean tookFocus = tvDescription.requestFocus();
 295         if (tookFocus) {
 296             // make the keyboard appear
 297             InputMethodManager imm = (InputMethodManager) tvDate.getContext()
 298                                                                 .getSystemService(
 299                                                                         Context.INPUT_METHOD_SERVICE);
 300             imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
 301         }
 302     }
 303     @Override
 304     public void descriptionSelected(String description) {
 305         tvAccount.setText(description);
 306         tvAmount.requestFocus(View.FOCUS_FORWARD);
 307     }
 308 }