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