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)
  85                 pickTransactionDate();
  86         });
  87         tvDate.setOnClickListener(v -> pickTransactionDate());
  88
  89         mProfile = Data.profile.getValue();
  90         if (mProfile == null)
  91             throw new AssertionError();
  92
  93         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
  94                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
  95         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
  96                 "name", true, this, mProfile);
  97
  98         final TextWatcher tw = new TextWatcher() {
  99             @Override
 100             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 101             }
 102
 103             @Override
 104             public void onTextChanged(CharSequence s, int start, int before, int count) {
 105             }
 106
 107             @Override
 108             public void afterTextChanged(Editable s) {
 109 //                debug("input", "text changed");
 110                 if (inUpdate)
 111                     return;
 112
 113                 Logger.debug("textWatcher", "calling syncData()");
 114                 syncData();
 115                 Logger.debug("textWatcher",
 116                         "syncData() returned, checking if transaction is submittable");
 117                 adapter.model.checkTransactionSubmittable(adapter);
 118                 Logger.debug("textWatcher", "done");
 119             }
 120         };
 121         tvDescription.addTextChangedListener(tw);
 122         tvAccount.addTextChangedListener(tw);
 123         tvAmount.addTextChangedListener(tw);
 124
 125         dateObserver = date -> {
 126             if (syncingData)
 127                 return;
 128             syncingData = true;
 129             try {
 130                 tvDate.setText(item.getFormattedDate());
 131             }
 132             finally {
 133                 syncingData = false;
 134             }
 135         };
 136         descriptionObserver = description -> {
 137             if (syncingData)
 138                 return;
 139             syncingData = true;
 140             try {
 141                 tvDescription.setText(description);
 142             }
 143             finally {
 144                 syncingData = false;
 145             }
 146         };
 147         hintObserver = hint -> {
 148             if (syncingData)
 149                 return;
 150             syncingData = true;
 151             try {
 152                 tvAmount.setHint(hint);
 153             }
 154             finally {
 155                 syncingData = false;
 156             }
 157         };
 158         editableObserver = this::setEditable;
 159         focusedAccountObserver = index -> {
 160             if ((index != null) && index.equals(getAdapterPosition())) {
 161                 switch (item.getType()) {
 162                     case generalData:
 163                         // bad idea - double pop-up, and not really necessary.
 164                         // the user can tap the input to get the calendar
 165                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 166                         boolean focused = tvDescription.requestFocus();
 167                         tvDescription.dismissDropDown();
 168                         if (focused)
 169                             Misc.showSoftKeyboard(
 170                                     (NewTransactionActivity) tvDescription.getContext());
 171                         break;
 172                     case transactionRow:
 173                         focused = tvAccount.requestFocus();
 174                         tvAccount.dismissDropDown();
 175                         if (focused)
 176                             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 177
 178                         break;
 179                 }
 180             }
 181         };
 182         accountCountObserver = count -> {
 183             final int adapterPosition = getAdapterPosition();
 184             final int layoutPosition = getLayoutPosition();
 185             Logger.debug("holder",
 186                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 187                             adapterPosition, layoutPosition, item.getType()
 188                                                                  .toString()
 189                                                                  .concat(item.getType() ==
 190                                                                          NewTransactionModel.ItemType.transactionRow
 191                                                                          ? String.format(Locale.US,
 192                                                                          "'%s'=%s",
 193                                                                          item.getAccount()
 194                                                                              .getAccountName(),
 195                                                                          item.getAccount()
 196                                                                              .isAmountSet()
 197                                                                          ? String.format(Locale.US,
 198                                                                                  "%.2f",
 199                                                                                  item.getAccount()
 200                                                                                      .getAmount())
 201                                                                          : "unset") : "")));
 202             if (adapterPosition == count)
 203                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 204             else
 205                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 206         };
 207     }
 208     private void setEditable(Boolean editable) {
 209         tvDate.setEnabled(editable);
 210         tvDescription.setEnabled(editable);
 211         tvAccount.setEnabled(editable);
 212         tvAmount.setEnabled(editable);
 213     }
 214     private void beginUpdates() {
 215         if (inUpdate)
 216             throw new RuntimeException("Already in update mode");
 217         inUpdate = true;
 218     }
 219     private void endUpdates() {
 220         if (!inUpdate)
 221             throw new RuntimeException("Not in update mode");
 222         inUpdate = false;
 223     }
 224     /**
 225      * syncData()
 226      * <p>
 227      * Stores the data from the UI elements into the model item
 228      */
 229     private void syncData() {
 230         if (item == null)
 231             return;
 232
 233         if (syncingData) {
 234             Logger.debug("new-trans", "skipping syncData() loop");
 235             return;
 236         }
 237
 238         syncingData = true;
 239
 240         try {
 241             switch (item.getType()) {
 242                 case generalData:
 243                     item.setDate(String.valueOf(tvDate.getText()));
 244                     item.setDescription(String.valueOf(tvDescription.getText()));
 245                     break;
 246                 case transactionRow:
 247                     item.getAccount()
 248                         .setAccountName(String.valueOf(tvAccount.getText()));
 249
 250                     // TODO: handle multiple amounts
 251                     String amount = String.valueOf(tvAmount.getText());
 252                     amount = amount.trim();
 253
 254                     if (!amount.isEmpty()) {
 255                         try {
 256                             item.getAccount()
 257                                 .setAmount(Float.parseFloat(amount));
 258                         }
 259                         catch (NumberFormatException e) {
 260                             Logger.debug("new-trans", String.format(
 261                                     "assuming amount is not set due to number format exception. " +
 262                                     "input was '%s'",
 263                                     amount));
 264                             item.getAccount()
 265                                 .resetAmount();
 266                         }
 267                     }
 268                     else
 269                         item.getAccount()
 270                             .resetAmount();
 271
 272                     break;
 273                 case bottomFiller:
 274                     throw new RuntimeException("Should not happen");
 275             }
 276         }
 277         finally {
 278             syncingData = false;
 279         }
 280     }
 281     private void pickTransactionDate() {
 282         DatePickerFragment picker = new DatePickerFragment();
 283         picker.setOnDatePickedListener(this);
 284         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 285                 "datePicker");
 286     }
 287     /**
 288      * setData
 289      *
 290      * @param item updates the UI elements with the data from the model item
 291      */
 292     public void setData(NewTransactionModel.Item item) {
 293         beginUpdates();
 294         try {
 295             if (this.item != null && !this.item.equals(item)) {
 296                 this.item.stopObservingDate(dateObserver);
 297                 this.item.stopObservingDescription(descriptionObserver);
 298                 this.item.stopObservingAmountHint(hintObserver);
 299                 this.item.stopObservingEditableFlag(editableObserver);
 300                 this.item.getModel()
 301                          .stopObservingFocusedItem(focusedAccountObserver);
 302                 this.item.getModel()
 303                          .stopObservingAccountCount(accountCountObserver);
 304
 305                 this.item = null;
 306             }
 307
 308             switch (item.getType()) {
 309                 case generalData:
 310                     tvDate.setText(item.getFormattedDate());
 311                     tvDescription.setText(item.getDescription());
 312                     lHead.setVisibility(View.VISIBLE);
 313                     lAccount.setVisibility(View.GONE);
 314                     lPadding.setVisibility(View.GONE);
 315                     setEditable(true);
 316                     break;
 317                 case transactionRow:
 318                     LedgerTransactionAccount acc = item.getAccount();
 319                     tvAccount.setText(acc.getAccountName());
 320                     tvAmount.setText(
 321                             acc.isAmountSet() ? String.format(Locale.US, "%1.2f", acc.getAmount())
 322                                               : "");
 323                     lHead.setVisibility(View.GONE);
 324                     lAccount.setVisibility(View.VISIBLE);
 325                     lPadding.setVisibility(View.GONE);
 326                     setEditable(true);
 327                     break;
 328                 case bottomFiller:
 329                     lHead.setVisibility(View.GONE);
 330                     lAccount.setVisibility(View.GONE);
 331                     lPadding.setVisibility(View.VISIBLE);
 332                     setEditable(false);
 333                     break;
 334             }
 335
 336             if (this.item == null) { // was null or has changed
 337                 this.item = item;
 338                 final NewTransactionActivity activity =
 339                         (NewTransactionActivity) tvDescription.getContext();
 340                 item.observeDate(activity, dateObserver);
 341                 item.observeDescription(activity, descriptionObserver);
 342                 item.observeAmountHint(activity, hintObserver);
 343                 item.observeEditableFlag(activity, editableObserver);
 344                 item.getModel()
 345                     .observeFocusedItem(activity, focusedAccountObserver);
 346                 item.getModel()
 347                     .observeAccountCount(activity, accountCountObserver);
 348             }
 349         }
 350         finally {
 351             endUpdates();
 352         }
 353     }
 354     @Override
 355     public void onDatePicked(int year, int month, int day) {
 356         final Calendar c = GregorianCalendar.getInstance();
 357         c.set(year, month, day);
 358         item.setDate(c.getTime());
 359         boolean focused = tvDescription.requestFocus();
 360         if (focused)
 361             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 362
 363     }
 364     @Override
 365     public void descriptionSelected(String description) {
 366         tvAccount.setText(description);
 367         tvAmount.requestFocus(View.FOCUS_FORWARD);
 368     }
 369 }