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.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
  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         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
  88                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
  89         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
  90                 "name", true, this, mProfile);
  91
  92         final TextWatcher tw = new TextWatcher() {
  93             @Override
  94             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
  95             }
  96
  97             @Override
  98             public void onTextChanged(CharSequence s, int start, int before, int count) {
  99             }
 100
 101             @Override
 102             public void afterTextChanged(Editable s) {
 103 //                debug("input", "text changed");
 104                 if (inUpdate) return;
 105
 106                 Logger.debug("textWatcher", "calling syncData()");
 107                 syncData();
 108                 Logger.debug("textWatcher",
 109                         "syncData() returned, checking if transaction is submittable");
 110                 adapter.model.checkTransactionSubmittable(adapter);
 111                 Logger.debug("textWatcher", "done");
 112             }
 113         };
 114         tvDescription.addTextChangedListener(tw);
 115         tvAccount.addTextChangedListener(tw);
 116         tvAmount.addTextChangedListener(tw);
 117
 118         dateObserver = date -> {
 119             if (syncingData) return;
 120             tvDate.setText(item.getFormattedDate());
 121         };
 122         descriptionObserver = description -> {
 123             if (syncingData) return;
 124             tvDescription.setText(description);
 125         };
 126         hintObserver = hint -> {
 127             if (syncingData) return;
 128             tvAmount.setHint(hint);
 129         };
 130         focusedAccountObserver = index -> {
 131             if ((index != null) && index.equals(getAdapterPosition())) {
 132                 switch (item.getType()) {
 133                     case generalData:
 134                         tvDate.requestFocus();
 135                         break;
 136                     case transactionRow:
 137                         tvAccount.requestFocus();
 138                         tvAccount.dismissDropDown();
 139                         tvAccount.selectAll();
 140                         break;
 141                 }
 142             }
 143         };
 144         accountCountObserver = count -> {
 145             if (getAdapterPosition() == count) tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 146             else tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 147         };
 148     }
 149     private void beginUpdates() {
 150         if (inUpdate) throw new RuntimeException("Already in update mode");
 151         inUpdate = true;
 152     }
 153     private void endUpdates() {
 154         if (!inUpdate) throw new RuntimeException("Not in update mode");
 155         inUpdate = false;
 156     }
 157     /**
 158      * syncData()
 159      * <p>
 160      * Stores the data from the UI elements into the model item
 161      */
 162     private void syncData() {
 163         if (item == null) return;
 164
 165         if (syncingData) {
 166             Logger.debug("new-trans", "skipping syncData() loop");
 167             return;
 168         }
 169
 170         syncingData = true;
 171
 172         try {
 173             switch (item.getType()) {
 174                 case generalData:
 175                     item.setDate(String.valueOf(tvDate.getText()));
 176                     item.setDescription(String.valueOf(tvDescription.getText()));
 177                     break;
 178                 case transactionRow:
 179                     item.getAccount()
 180                         .setAccountName(String.valueOf(tvAccount.getText()));
 181
 182                     // TODO: handle multiple amounts
 183                     String amount = String.valueOf(tvAmount.getText());
 184                     amount = amount.trim();
 185
 186                     if (!amount.isEmpty()) item.getAccount()
 187                                                .setAmount(Float.parseFloat(amount));
 188                     else item.getAccount()
 189                              .resetAmount();
 190
 191                     break;
 192                 case bottomFiller:
 193                     throw new RuntimeException("Should not happen");
 194             }
 195         }
 196         finally {
 197             syncingData = false;
 198         }
 199     }
 200     private void pickTransactionDate() {
 201         DatePickerFragment picker = new DatePickerFragment();
 202         picker.setOnDatePickedListener(this);
 203         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 204                 "datePicker");
 205     }
 206     /**
 207      * setData
 208      *
 209      * @param item updates the UI elements with the data from the model item
 210      */
 211     public void setData(NewTransactionModel.Item item) {
 212         beginUpdates();
 213         try {
 214             if (this.item != null && !this.item.equals(item)) {
 215                 this.item.stopObservingDate(dateObserver);
 216                 this.item.stopObservingDescription(descriptionObserver);
 217                 this.item.stopObservingAmountHint(hintObserver);
 218                 this.item.getModel()
 219                          .stopObservingFocusedItem(focusedAccountObserver);
 220                 this.item.getModel()
 221                          .stopObservingAccountCount(accountCountObserver);
 222
 223                 this.item = null;
 224             }
 225
 226             switch (item.getType()) {
 227                 case generalData:
 228                     tvDate.setText(item.getFormattedDate());
 229                     tvDescription.setText(item.getDescription());
 230                     lHead.setVisibility(View.VISIBLE);
 231                     lAccount.setVisibility(View.GONE);
 232                     lPadding.setVisibility(View.GONE);
 233                     break;
 234                 case transactionRow:
 235                     LedgerTransactionAccount acc = item.getAccount();
 236                     tvAccount.setText(acc.getAccountName());
 237                     tvAmount.setText(
 238                             acc.isAmountSet() ? String.format(Locale.US, "%1.2f", acc.getAmount())
 239                                               : "");
 240                     lHead.setVisibility(View.GONE);
 241                     lAccount.setVisibility(View.VISIBLE);
 242                     lPadding.setVisibility(View.GONE);
 243                     break;
 244                 case bottomFiller:
 245                     lHead.setVisibility(View.GONE);
 246                     lAccount.setVisibility(View.GONE);
 247                     lPadding.setVisibility(View.VISIBLE);
 248                     break;
 249             }
 250
 251             if (this.item == null) { // was null or has changed
 252                 this.item = item;
 253                 final NewTransactionActivity activity =
 254                         (NewTransactionActivity) tvDescription.getContext();
 255                 item.observeDate(activity, dateObserver);
 256                 item.observeDescription(activity, descriptionObserver);
 257                 item.observeAmountHint(activity, hintObserver);
 258                 item.getModel()
 259                     .observeFocusedItem(activity, focusedAccountObserver);
 260                 item.getModel()
 261                     .observeAccountCount(activity, accountCountObserver);
 262             }
 263         }
 264         finally {
 265             endUpdates();
 266         }
 267     }
 268     @Override
 269     public void onDatePicked(int year, int month, int day) {
 270         final Calendar c = GregorianCalendar.getInstance();
 271         c.set(year, month, day);
 272         item.setDate(c.getTime());
 273         boolean tookFocus = tvDescription.requestFocus();
 274         if (tookFocus) {
 275             // make the keyboard appear
 276             InputMethodManager imm = (InputMethodManager) tvDate.getContext()
 277                                                                 .getSystemService(
 278                                                                         Context.INPUT_METHOD_SERVICE);
 279             imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
 280         }
 281     }
 282     @Override
 283     public void descriptionSelected(String description) {
 284         tvAccount.setText(description);
 285         tvAmount.requestFocus(View.FOCUS_FORWARD);
 286     }
 287 }