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.Gravity;
  22 import android.view.Menu;
  23 import android.view.MenuItem;
  24 import android.view.MotionEvent;
  25 import android.view.View;
  26 import android.widget.AutoCompleteTextView;
  27 import android.widget.EditText;
  28 import android.widget.FilterQueryProvider;
  29 import android.widget.ProgressBar;
  30 import android.widget.SimpleCursorAdapter;
  31 import android.widget.TableLayout;
  32 import android.widget.TableRow;
  33 import android.widget.TextView;
  34
  35 import java.util.Objects;
  36
  37 /*
  38  * TODO: auto-fill of transaction description
  39  *       if Android O's implementation won't work, add a custom one
  40  * TODO: nicer progress while transaction is submitted
  41  * TODO: latest transactions, maybe with browsing further in the past?
  42  * TODO: reports
  43  * TODO: get rid of the custom session/cookie and auth code?
  44  *         (the last problem with the POST was the missing content-length header)
  45  * TODO: app icon
  46  * TODO: nicer swiping removal with visual feedback
  47  * TODO: setup wizard
  48  * TODO: update accounts/check settings upon change of backend settings
  49  *  */
  50
  51 public class NewTransactionActivity extends AppCompatActivity implements TaskCallback {
  52     private TableLayout table;
  53     private ProgressBar progress;
  54     private TextView text_date;
  55     private AutoCompleteTextView text_descr;
  56     private static SaveTransactionTask saver;
  57     private MenuItem mSave;
  58
  59     @Override
  60     protected void onCreate(Bundle savedInstanceState) {
  61         super.onCreate(savedInstanceState);
  62         setContentView(R.layout.activity_new_transaction);
  63         Toolbar toolbar = findViewById(R.id.toolbar);
  64         setSupportActionBar(toolbar);
  65
  66         text_date = findViewById(R.id.new_transaction_date);
  67         text_date.setOnFocusChangeListener(new View.OnFocusChangeListener() {
  68             @Override
  69             public
  70             void onFocusChange(View v, boolean hasFocus) {
  71                 if (hasFocus) pickTransactionDate(v);
  72             }
  73         });
  74         text_descr = findViewById(R.id.new_transaction_description);
  75         hook_autocompletion_adapter(text_descr, MobileLedgerDB.DESCRIPTION_HISTORY_TABLE, "description");
  76
  77         progress = findViewById(R.id.save_transaction_progress);
  78
  79         Objects.requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true);
  80         table = findViewById(R.id.new_transaction_accounts_table);
  81         for (int i = 0; i < table.getChildCount(); i++) {
  82             TableRow row = (TableRow) table.getChildAt(i);
  83             AutoCompleteTextView acc_name_view = (AutoCompleteTextView) row.getChildAt(0);
  84             TextView amount_view = (TextView) row.getChildAt(1);
  85             hook_swipe_listener(row);
  86             hook_autocompletion_adapter(acc_name_view, MobileLedgerDB.ACCOUNTS_TABLE, "name");
  87             hook_text_change_listener(acc_name_view);
  88             hook_text_change_listener(amount_view);
  89 //            Log.d("swipe", "hooked to row "+i);
  90         }
  91     }
  92
  93     @Override
  94     public void finish() {
  95         super.finish();
  96         overridePendingTransition(R.anim.dummy, R.anim.slide_out_right);
  97     }
  98
  99     @Override
 100     public boolean onOptionsItemSelected(MenuItem item) {
 101         switch (item.getItemId()) {
 102             case android.R.id.home:
 103                 finish();
 104                 return true;
 105         }
 106         return super.onOptionsItemSelected(item);
 107     }
 108
 109     public void save_transaction() {
 110         if (mSave != null) mSave.setVisible(false);
 111         toggle_all_editing(false);
 112         progress.setVisibility(View.VISIBLE);
 113
 114         saver = new SaveTransactionTask(this);
 115
 116         saver.setPref(PreferenceManager.getDefaultSharedPreferences(this));
 117         LedgerTransaction tr = new LedgerTransaction(text_date.getText().toString(), text_descr.getText().toString());
 118
 119         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 120         for ( int i = 0; i < table.getChildCount(); i++ ) {
 121             TableRow row = (TableRow) table.getChildAt(i);
 122             String acc = ((TextView) row.getChildAt(0)).getText().toString();
 123             String amt = ((TextView) row.getChildAt(1)).getText().toString();
 124             LedgerTransactionItem item =
 125                     amt.length() > 0
 126                     ? new LedgerTransactionItem( acc, Float.parseFloat(amt))
 127                     : new LedgerTransactionItem( acc );
 128
 129             tr.add_item(item);
 130         }
 131         saver.execute(tr);
 132     }
 133
 134     private void toggle_all_editing(boolean enabled) {
 135         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 136         for (int i = 0; i < table.getChildCount(); i++) {
 137             TableRow row = (TableRow) table.getChildAt(i);
 138             for (int j = 0; j < row.getChildCount(); j++) {
 139                 row.getChildAt(j).setEnabled(enabled);
 140             }
 141         }
 142     }
 143
 144     private void hook_swipe_listener(final TableRow row) {
 145         row.getChildAt(0).setOnTouchListener(new OnSwipeTouchListener(this) {
 146             public void onSwipeLeft() {
 147 //                Log.d("swipe", "LEFT" + row.getId());
 148                 if (table.getChildCount() > 2) {
 149                     table.removeView(row);
 150 //                    Toast.makeText(NewTransactionActivity.this, "LEFT", Toast.LENGTH_LONG).show();
 151                 }
 152                 else {
 153                     Snackbar.make(table, R.string.msg_at_least_two_accounts_are_required, Snackbar.LENGTH_LONG)
 154                             .setAction("Action", null).show();
 155                 }
 156             }
 157 //            @Override
 158 //            public boolean performClick(View view, MotionEvent m) {
 159 //                return true;
 160 //            }
 161             public boolean onTouch(View view, MotionEvent m) {
 162                 return gestureDetector.onTouchEvent(m);
 163             }
 164         });
 165     }
 166
 167     private void hook_text_change_listener(final TextView view) {
 168         view.addTextChangedListener(new TextWatcher() {
 169             @Override
 170             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 171
 172             }
 173
 174             @Override
 175             public void onTextChanged(CharSequence s, int start, int before, int count) {
 176
 177             }
 178
 179             @Override
 180             public void afterTextChanged(Editable s) {
 181 //                Log.d("input", "text changed");
 182                 check_transaction_submittable();
 183             }
 184         });
 185
 186     }
 187
 188     @TargetApi(Build.VERSION_CODES.N)
 189     private void hook_autocompletion_adapter(final AutoCompleteTextView view, final String table, final String field) {
 190         String[] from = {field};
 191         int[] to = {android.R.id.text1};
 192         SQLiteDatabase db = MobileLedgerDB.db;
 193
 194         SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_dropdown_item_1line, null, from, to, 0);
 195         adapter.setStringConversionColumn(1);
 196
 197         FilterQueryProvider provider = new FilterQueryProvider() {
 198             @Override
 199             public Cursor runQuery(CharSequence constraint) {
 200                 if (constraint == null) return null;
 201
 202                 String str = constraint.toString().toUpperCase();
 203                 Log.d("autocompletion", "Looking for "+str);
 204                 String[] col_names = {FontsContract.Columns._ID, field};
 205                 MatrixCursor c = new MatrixCursor(col_names);
 206
 207                 Cursor matches = db.rawQuery(String.format(
 208                         "SELECT %s as a, case when %s_upper LIKE ?||'%%' then 1 " +
 209                                 "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
 210                                 "WHEN %s_upper LIKE '%% '||?||'%%' then 3 " + "else 9 end " +
 211                                 "FROM %s " + "WHERE %s_upper LIKE '%%'||?||'%%' " +
 212                                 "ORDER BY 2, 1;", field, field, field, field, table, field),
 213                         new String[]{str, str, str, str});
 214
 215                 try {
 216                     int i = 0;
 217                     while (matches.moveToNext()) {
 218                         String match = matches.getString(0);
 219                         int order = matches.getInt(1);
 220                         Log.d("autocompletion", String.format("match: %s |%d", match, order));
 221                         c.newRow().add(i++).add(match);
 222                     }
 223                 }
 224                 finally {
 225                     matches.close();
 226                 }
 227
 228                 return c;
 229
 230             }
 231         };
 232
 233         adapter.setFilterQueryProvider(provider);
 234
 235         view.setAdapter(adapter);
 236     }
 237
 238     public boolean onCreateOptionsMenu(Menu menu) {
 239         // Inflate the menu; this adds items to the action bar if it is present.
 240         getMenuInflater().inflate(R.menu.new_transaction, menu);
 241         mSave = menu.findItem(R.id.action_submit_transaction);
 242         if (mSave == null) throw new AssertionError();
 243
 244         check_transaction_submittable();
 245
 246         return true;
 247     }
 248
 249     public void pickTransactionDate(View view) {
 250         DialogFragment picker = new DatePickerFragment();
 251         picker.show(getSupportFragmentManager(), "datePicker");
 252     }
 253
 254     public int dp2px(float dp) {
 255         return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics()));
 256     }
 257
 258     private void do_add_account_row(boolean focus) {
 259         final AutoCompleteTextView acc = new AutoCompleteTextView(this);
 260         acc.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 9f));
 261         acc.setHint(R.string.new_transaction_account_hint);
 262         acc.setWidth(0);
 263
 264         final EditText amt = new EditText(this);
 265         amt.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,
 266                 TableRow.LayoutParams.MATCH_PARENT, 1f));
 267         amt.setHint(R.string.new_transaction_amount_hint);
 268         amt.setWidth(0);
 269         amt.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL );
 270         amt.setMinWidth(dp2px(40));
 271         amt.setTextAlignment(EditText.TEXT_ALIGNMENT_VIEW_END);
 272
 273         final TableRow row = new TableRow(this);
 274         row.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT));
 275         row.setGravity(Gravity.BOTTOM);
 276         row.addView(acc);
 277         row.addView(amt);
 278         table.addView(row);
 279
 280         if (focus) acc.requestFocus();
 281
 282         hook_swipe_listener(row);
 283         hook_autocompletion_adapter(acc, MobileLedgerDB.ACCOUNTS_TABLE, "name");
 284         hook_text_change_listener(acc);
 285         hook_text_change_listener(amt);
 286     }
 287
 288     public void addTransactionAccountFromMenu(MenuItem item) {
 289         do_add_account_row(true);
 290     }
 291
 292     public void saveTransactionFromMenu(MenuItem item) {
 293         save_transaction();
 294     }
 295
 296     private void check_transaction_submittable() {
 297         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 298         int accounts = 0;
 299         int accounts_with_values = 0;
 300         int empty_rows = 0;
 301         for(int i = 0; i < table.getChildCount(); i++ ) {
 302             TableRow row = (TableRow) table.getChildAt(i);
 303
 304             TextView acc_name_v = (TextView) row.getChildAt(0);
 305
 306             String acc_name = String.valueOf(acc_name_v.getText());
 307             acc_name = acc_name.trim();
 308             if (!acc_name.isEmpty()) {
 309                 accounts++;
 310
 311                 TextView amount_v = (TextView) row.getChildAt(1);
 312                 String amt = String.valueOf(amount_v.getText());
 313
 314                 if (!amt.isEmpty()) accounts_with_values++;
 315             } else empty_rows++;
 316         }
 317
 318         if (accounts_with_values == accounts && empty_rows == 0) {
 319             do_add_account_row(false);
 320         }
 321
 322         if ((accounts >= 2) && (accounts_with_values >= (accounts - 1))) {
 323             if (mSave != null) mSave.setVisible(true);
 324         } else {
 325             if (mSave != null) mSave.setVisible(false);
 326         }
 327     }
 328
 329     @Override
 330     public
 331     void done(String error) {
 332         progress.setVisibility(View.INVISIBLE);
 333         Log.d("visuals", "hiding progress");
 334
 335         if (error == null) reset_form();
 336         else Snackbar.make(findViewById(R.id.new_transaction_accounts_table), error,
 337                 BaseTransientBottomBar.LENGTH_LONG).show();
 338
 339         toggle_all_editing(true);
 340         check_transaction_submittable();
 341     }
 342
 343     private void reset_form() {
 344         text_date.setText("");
 345         text_descr.setText("");
 346         while(table.getChildCount() > 2) {
 347             table.removeViewAt(2);
 348         }
 349         for( int i = 0; i < 2; i++ ) {
 350             TableRow tr = (TableRow) table.getChildAt(i);
 351             if ( tr == null) break;
 352
 353             ((TextView)tr.getChildAt(0)).setText("");
 354             ((TextView)tr.getChildAt(1)).setText("");
 355         }
 356
 357         text_descr.requestFocus();
 358     }
 359 }