app/src/main/java/net/ktnx/mobileledger/NewTransactionActivity.java

   1 package net.ktnx.mobileledger;
   2
   3 import android.annotation.TargetApi;
   4 import android.database.Cursor;
   5 import android.database.MatrixCursor;
   6 import android.database.sqlite.SQLiteDatabase;
   7 import android.os.Build;
   8 import android.os.Bundle;
   9 import android.preference.PreferenceManager;
  10 import android.provider.FontsContract;
  11 import android.support.design.widget.BaseTransientBottomBar;
  12 import android.support.design.widget.Snackbar;
  13 import android.support.v4.app.DialogFragment;
  14 import android.support.v7.app.AppCompatActivity;
  15 import android.support.v7.widget.Toolbar;
  16 import android.text.Editable;
  17 import android.text.InputType;
  18 import android.text.TextWatcher;
  19 import android.util.Log;
  20 import android.util.TypedValue;
  21 import android.view.Menu;
  22 import android.view.MenuItem;
  23 import android.view.MotionEvent;
  24 import android.view.View;
  25 import android.widget.AutoCompleteTextView;
  26 import android.widget.EditText;
  27 import android.widget.FilterQueryProvider;
  28 import android.widget.ProgressBar;
  29 import android.widget.SimpleCursorAdapter;
  30 import android.widget.TableLayout;
  31 import android.widget.TableRow;
  32 import android.widget.TextView;
  33
  34 import java.util.Objects;
  35
  36 /*
  37  * TODO: auto-fill of transaction description
  38  *       if Android O's implementation won't work, add a custom one
  39  * TODO: nicer progress while transaction is submitted
  40  * TODO: periodic and manual refresh of available accounts
  41  *         (now done forcibly each time the main activity is started)
  42  * TODO: latest transactions, maybe with browsing further in the past?
  43  * TODO: reports
  44  * TODO: get rid of the custom session/cookie and auth code?
  45  *         (the last problem with the POST was the missing content-length header)
  46  * TODO: app icon
  47  * TODO: nicer swiping removal with visual feedback
  48  * TODO: activity with current balance
  49  * TODO: setup wizard
  50  * TODO: update accounts/check settings upon change of backend settings
  51  *  */
  52
  53 public class NewTransactionActivity extends AppCompatActivity implements TaskCallback {
  54     private TableLayout table;
  55     private ProgressBar progress;
  56     private TextView text_date;
  57     private AutoCompleteTextView text_descr;
  58     private static SaveTransactionTask saver;
  59     private MenuItem mSave;
  60
  61     @Override
  62     protected void onCreate(Bundle savedInstanceState) {
  63         super.onCreate(savedInstanceState);
  64         setContentView(R.layout.activity_new_transaction);
  65         Toolbar toolbar = findViewById(R.id.toolbar);
  66         setSupportActionBar(toolbar);
  67
  68         text_date = findViewById(R.id.new_transaction_date);
  69         text_descr = findViewById(R.id.new_transaction_description);
  70         hook_autocompletion_adapter(text_descr, MobileLedgerDB.DESCRIPTION_HISTORY_TABLE, "description");
  71
  72         progress = findViewById(R.id.save_transaction_progress);
  73
  74         Objects.requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true);
  75         table = findViewById(R.id.new_transaction_accounts_table);
  76         for (int i = 0; i < table.getChildCount(); i++) {
  77             TableRow row = (TableRow) table.getChildAt(i);
  78             AutoCompleteTextView acc_name_view = (AutoCompleteTextView) row.getChildAt(0);
  79             TextView amount_view = (TextView) row.getChildAt(1);
  80             hook_swipe_listener(row);
  81             hook_autocompletion_adapter(acc_name_view, MobileLedgerDB.ACCOUNTS_TABLE, "name");
  82             hook_text_change_listener(acc_name_view);
  83             hook_text_change_listener(amount_view);
  84 //            Log.d("swipe", "hooked to row "+i);
  85         }
  86     }
  87
  88     @Override
  89     public void finish() {
  90         super.finish();
  91         overridePendingTransition(R.anim.dummy, R.anim.slide_out_right);
  92     }
  93
  94     @Override
  95     public boolean onOptionsItemSelected(MenuItem item) {
  96         switch (item.getItemId()) {
  97             case android.R.id.home:
  98                 finish();
  99                 return true;
 100         }
 101         return super.onOptionsItemSelected(item);
 102     }
 103
 104     public void save_transaction() {
 105         if (mSave != null) mSave.setVisible(false);
 106         toggle_all_editing(false);
 107         progress.setVisibility(View.VISIBLE);
 108
 109         saver = new SaveTransactionTask(this);
 110
 111         saver.setPref(PreferenceManager.getDefaultSharedPreferences(this));
 112         LedgerTransaction tr = new LedgerTransaction(text_date.getText().toString(), text_descr.getText().toString());
 113
 114         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 115         for ( int i = 0; i < table.getChildCount(); i++ ) {
 116             TableRow row = (TableRow) table.getChildAt(i);
 117             String acc = ((TextView) row.getChildAt(0)).getText().toString();
 118             String amt = ((TextView) row.getChildAt(1)).getText().toString();
 119             LedgerTransactionItem item =
 120                     amt.length() > 0
 121                     ? new LedgerTransactionItem( acc, Float.parseFloat(amt))
 122                     : new LedgerTransactionItem( acc );
 123
 124             tr.add_item(item);
 125         }
 126         saver.execute(tr);
 127     }
 128
 129     private void toggle_all_editing(boolean enabled) {
 130         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 131         for (int i = 0; i < table.getChildCount(); i++) {
 132             TableRow row = (TableRow) table.getChildAt(i);
 133             for (int j = 0; j < row.getChildCount(); j++) {
 134                 row.getChildAt(j).setEnabled(enabled);
 135             }
 136         }
 137     }
 138
 139     private void hook_swipe_listener(final TableRow row) {
 140         row.getChildAt(0).setOnTouchListener(new OnSwipeTouchListener(this) {
 141             public void onSwipeLeft() {
 142 //                Log.d("swipe", "LEFT" + row.getId());
 143                 if (table.getChildCount() > 2) {
 144                     table.removeView(row);
 145 //                    Toast.makeText(NewTransactionActivity.this, "LEFT", Toast.LENGTH_LONG).show();
 146                 }
 147                 else {
 148                     Snackbar.make(table, R.string.msg_at_least_two_accounts_are_required, Snackbar.LENGTH_LONG)
 149                             .setAction("Action", null).show();
 150                 }
 151             }
 152 //            @Override
 153 //            public boolean performClick(View view, MotionEvent m) {
 154 //                return true;
 155 //            }
 156             public boolean onTouch(View view, MotionEvent m) {
 157                 return gestureDetector.onTouchEvent(m);
 158             }
 159         });
 160     }
 161
 162     private void hook_text_change_listener(final TextView view) {
 163         view.addTextChangedListener(new TextWatcher() {
 164             @Override
 165             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 166
 167             }
 168
 169             @Override
 170             public void onTextChanged(CharSequence s, int start, int before, int count) {
 171
 172             }
 173
 174             @Override
 175             public void afterTextChanged(Editable s) {
 176 //                Log.d("input", "text changed");
 177                 check_transaction_submittable();
 178             }
 179         });
 180
 181     }
 182
 183     @TargetApi(Build.VERSION_CODES.N)
 184     private void hook_autocompletion_adapter(final AutoCompleteTextView view, final String table, final String field) {
 185         String[] from = {field};
 186         int[] to = {android.R.id.text1};
 187         SQLiteDatabase db = MobileLedgerDB.db;
 188
 189         SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_dropdown_item_1line, null, from, to, 0);
 190         adapter.setStringConversionColumn(1);
 191
 192         FilterQueryProvider provider = new FilterQueryProvider() {
 193             @Override
 194             public Cursor runQuery(CharSequence constraint) {
 195                 if (constraint == null) return null;
 196
 197                 String str = constraint.toString().toUpperCase();
 198                 Log.d("autocompletion", "Looking for "+str);
 199                 String[] col_names = {FontsContract.Columns._ID, field};
 200                 MatrixCursor c = new MatrixCursor(col_names);
 201
 202                 Cursor matches = db.rawQuery(String.format(
 203                         "SELECT %s as a, case when %s_upper LIKE ?||'%%' then 1 " +
 204                                 "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
 205                                 "WHEN %s_upper LIKE '%% '||?||'%%' then 3 " + "else 9 end " +
 206                                 "FROM %s " + "WHERE %s_upper LIKE '%%'||?||'%%' " +
 207                                 "ORDER BY 2, 1;", field, field, field, field, table, field),
 208                         new String[]{str, str, str, str});
 209
 210                 try {
 211                     int i = 0;
 212                     while (matches.moveToNext()) {
 213                         String match = matches.getString(0);
 214                         int order = matches.getInt(1);
 215                         Log.d("autocompletion", String.format("match: %s |%d", match, order));
 216                         c.newRow().add(i++).add(match);
 217                     }
 218                 }
 219                 finally {
 220                     matches.close();
 221                 }
 222
 223                 return c;
 224
 225             }
 226         };
 227
 228         adapter.setFilterQueryProvider(provider);
 229
 230         view.setAdapter(adapter);
 231     }
 232
 233     public boolean onCreateOptionsMenu(Menu menu) {
 234         // Inflate the menu; this adds items to the action bar if it is present.
 235         getMenuInflater().inflate(R.menu.new_transaction, menu);
 236         mSave = menu.findItem(R.id.action_submit_transaction);
 237         if (mSave == null) throw new AssertionError();
 238
 239         return true;
 240     }
 241
 242     public void pickTransactionDate(View view) {
 243         DialogFragment picker = new DatePickerFragment();
 244         picker.show(getSupportFragmentManager(), "datePicker");
 245     }
 246
 247     public int dp2px(float dp) {
 248         return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics()));
 249     }
 250
 251     private void do_add_account_row(boolean focus) {
 252         final AutoCompleteTextView acc = new AutoCompleteTextView(this);
 253         acc.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 9f));
 254         acc.setHint(R.string.new_transaction_account_hint);
 255         acc.setWidth(0);
 256
 257         final EditText amt = new EditText(this);
 258         amt.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT, 1f));
 259         amt.setHint(R.string.new_transaction_amount_hint);
 260         amt.setWidth(0);
 261         amt.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL );
 262         amt.setMinWidth(dp2px(40));
 263         amt.setTextAlignment(EditText.TEXT_ALIGNMENT_VIEW_END);
 264
 265         final TableRow row = new TableRow(this);
 266         row.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT));
 267         row.addView(acc);
 268         row.addView(amt);
 269         table.addView(row);
 270
 271         if (focus) acc.requestFocus();
 272
 273         hook_swipe_listener(row);
 274         hook_autocompletion_adapter(acc, MobileLedgerDB.ACCOUNTS_TABLE, "name");
 275         hook_text_change_listener(acc);
 276         hook_text_change_listener(amt);
 277     }
 278
 279     public void addTransactionAccountFromMenu(MenuItem item) {
 280         do_add_account_row(true);
 281     }
 282
 283     public void saveTransactionFromMenu(MenuItem item) {
 284         save_transaction();
 285     }
 286
 287     private void check_transaction_submittable() {
 288         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 289         int accounts = 0;
 290         int accounts_with_values = 0;
 291         int empty_rows = 0;
 292         for(int i = 0; i < table.getChildCount(); i++ ) {
 293             TableRow row = (TableRow) table.getChildAt(i);
 294
 295             TextView acc_name_v = (TextView) row.getChildAt(0);
 296
 297             String acc_name = String.valueOf(acc_name_v.getText());
 298             acc_name = acc_name.trim();
 299             if (!acc_name.isEmpty()) {
 300                 accounts++;
 301
 302                 TextView amount_v = (TextView) row.getChildAt(1);
 303                 String amt = String.valueOf(amount_v.getText());
 304
 305                 if (!amt.isEmpty()) accounts_with_values++;
 306             } else empty_rows++;
 307         }
 308
 309         if (accounts_with_values == accounts && empty_rows == 0) {
 310             do_add_account_row(false);
 311         }
 312
 313         if ((accounts >= 2) && (accounts_with_values >= (accounts - 1))) {
 314             if (mSave != null) mSave.setVisible(true);
 315         } else {
 316             if (mSave != null) mSave.setVisible(false);
 317         }
 318     }
 319
 320     @Override
 321     public
 322     void done(String error) {
 323         progress.setVisibility(View.INVISIBLE);
 324         Log.d("visuals", "hiding progress");
 325
 326         if (error == null) reset_form();
 327         else Snackbar.make(findViewById(R.id.new_transaction_accounts_table), error,
 328                 BaseTransientBottomBar.LENGTH_LONG).show();
 329
 330         toggle_all_editing(true);
 331         check_transaction_submittable();
 332     }
 333
 334     private void reset_form() {
 335         text_date.setText("");
 336         text_descr.setText("");
 337         while(table.getChildCount() > 2) {
 338             table.removeViewAt(2);
 339         }
 340         for( int i = 0; i < 2; i++ ) {
 341             TableRow tr = (TableRow) table.getChildAt(i);
 342             if ( tr == null) break;
 343
 344             ((TextView)tr.getChildAt(0)).setText("");
 345             ((TextView)tr.getChildAt(1)).setText("");
 346         }
 347
 348         text_descr.requestFocus();
 349     }
 350 }