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             if (getAdapterPosition() == count) tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 175             else tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 176         };
 177     }
 178     private void beginUpdates() {
 179         if (inUpdate) throw new RuntimeException("Already in update mode");
 180         inUpdate = true;
 181     }
 182     private void endUpdates() {
 183         if (!inUpdate) throw new RuntimeException("Not in update mode");
 184         inUpdate = false;
 185     }
 186     /**
 187      * syncData()
 188      * <p>
 189      * Stores the data from the UI elements into the model item
 190      */
 191     private void syncData() {
 192         if (item == null) return;
 193
 194         if (syncingData) {
 195             Logger.debug("new-trans", "skipping syncData() loop");
 196             return;
 197         }
 198
 199         syncingData = true;
 200
 201         try {
 202             switch (item.getType()) {
 203                 case generalData:
 204                     item.setDate(String.valueOf(tvDate.getText()));
 205                     item.setDescription(String.valueOf(tvDescription.getText()));
 206                     break;
 207                 case transactionRow:
 208                     item.getAccount()
 209                         .setAccountName(String.valueOf(tvAccount.getText()));
 210
 211                     // TODO: handle multiple amounts
 212                     String amount = String.valueOf(tvAmount.getText());
 213                     amount = amount.trim();
 214
 215                     if (!amount.isEmpty()) item.getAccount()
 216                                                .setAmount(Float.parseFloat(amount));
 217                     else item.getAccount()
 218                              .resetAmount();
 219
 220                     break;
 221                 case bottomFiller:
 222                     throw new RuntimeException("Should not happen");
 223             }
 224         }
 225         finally {
 226             syncingData = false;
 227         }
 228     }
 229     private void pickTransactionDate() {
 230         DatePickerFragment picker = new DatePickerFragment();
 231         picker.setOnDatePickedListener(this);
 232         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 233                 "datePicker");
 234     }
 235     /**
 236      * setData
 237      *
 238      * @param item updates the UI elements with the data from the model item
 239      */
 240     public void setData(NewTransactionModel.Item item) {
 241         beginUpdates();
 242         try {
 243             if (this.item != null && !this.item.equals(item)) {
 244                 this.item.stopObservingDate(dateObserver);
 245                 this.item.stopObservingDescription(descriptionObserver);
 246                 this.item.stopObservingAmountHint(hintObserver);
 247                 this.item.getModel()
 248                          .stopObservingFocusedItem(focusedAccountObserver);
 249                 this.item.getModel()
 250                          .stopObservingAccountCount(accountCountObserver);
 251
 252                 this.item = null;
 253             }
 254
 255             switch (item.getType()) {
 256                 case generalData:
 257                     tvDate.setText(item.getFormattedDate());
 258                     tvDescription.setText(item.getDescription());
 259                     lHead.setVisibility(View.VISIBLE);
 260                     lAccount.setVisibility(View.GONE);
 261                     lPadding.setVisibility(View.GONE);
 262                     break;
 263                 case transactionRow:
 264                     LedgerTransactionAccount acc = item.getAccount();
 265                     tvAccount.setText(acc.getAccountName());
 266                     tvAmount.setText(
 267                             acc.isAmountSet() ? String.format(Locale.US, "%1.2f", acc.getAmount())
 268                                               : "");
 269                     lHead.setVisibility(View.GONE);
 270                     lAccount.setVisibility(View.VISIBLE);
 271                     lPadding.setVisibility(View.GONE);
 272                     break;
 273                 case bottomFiller:
 274                     lHead.setVisibility(View.GONE);
 275                     lAccount.setVisibility(View.GONE);
 276                     lPadding.setVisibility(View.VISIBLE);
 277                     break;
 278             }
 279
 280             if (this.item == null) { // was null or has changed
 281                 this.item = item;
 282                 final NewTransactionActivity activity =
 283                         (NewTransactionActivity) tvDescription.getContext();
 284                 item.observeDate(activity, dateObserver);
 285                 item.observeDescription(activity, descriptionObserver);
 286                 item.observeAmountHint(activity, hintObserver);
 287                 item.getModel()
 288                     .observeFocusedItem(activity, focusedAccountObserver);
 289                 item.getModel()
 290                     .observeAccountCount(activity, accountCountObserver);
 291             }
 292         }
 293         finally {
 294             endUpdates();
 295         }
 296     }
 297     @Override
 298     public void onDatePicked(int year, int month, int day) {
 299         final Calendar c = GregorianCalendar.getInstance();
 300         c.set(year, month, day);
 301         item.setDate(c.getTime());
 302         boolean focused = tvDescription.requestFocus();
 303         if (focused) Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 304
 305     }
 306     @Override
 307     public void descriptionSelected(String description) {
 308         tvAccount.setText(description);
 309         tvAmount.requestFocus(View.FOCUS_FORWARD);
 310     }
 311 }