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         table.removeAllViews();
  82         do_add_account_row(false);
  83         do_add_account_row(false);
  84     }
  85
  86     @Override
  87     public void finish() {
  88         super.finish();
  89         overridePendingTransition(R.anim.dummy, R.anim.slide_out_right);
  90     }
  91
  92     @Override
  93     public boolean onOptionsItemSelected(MenuItem item) {
  94         switch (item.getItemId()) {
  95             case android.R.id.home:
  96                 finish();
  97                 return true;
  98         }
  99         return super.onOptionsItemSelected(item);
 100     }
 101
 102     public void save_transaction() {
 103         if (mSave != null) mSave.setVisible(false);
 104         toggle_all_editing(false);
 105         progress.setVisibility(View.VISIBLE);
 106
 107         saver = new SaveTransactionTask(this);
 108
 109         saver.setPref(PreferenceManager.getDefaultSharedPreferences(this));
 110         LedgerTransaction tr = new LedgerTransaction(text_date.getText().toString(), text_descr.getText().toString());
 111
 112         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 113         for ( int i = 0; i < table.getChildCount(); i++ ) {
 114             TableRow row = (TableRow) table.getChildAt(i);
 115             String acc = ((TextView) row.getChildAt(0)).getText().toString();
 116             String amt = ((TextView) row.getChildAt(1)).getText().toString();
 117             LedgerTransactionItem item =
 118                     amt.length() > 0
 119                     ? new LedgerTransactionItem( acc, Float.parseFloat(amt))
 120                     : new LedgerTransactionItem( acc );
 121
 122             tr.add_item(item);
 123         }
 124         saver.execute(tr);
 125     }
 126
 127     private void toggle_all_editing(boolean enabled) {
 128         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 129         for (int i = 0; i < table.getChildCount(); i++) {
 130             TableRow row = (TableRow) table.getChildAt(i);
 131             for (int j = 0; j < row.getChildCount(); j++) {
 132                 row.getChildAt(j).setEnabled(enabled);
 133             }
 134         }
 135     }
 136
 137     private void hook_swipe_listener(final TableRow row) {
 138         row.getChildAt(0).setOnTouchListener(new OnSwipeTouchListener(this) {
 139             public void onSwipeLeft() {
 140 //                Log.d("swipe", "LEFT" + row.getId());
 141                 if (table.getChildCount() > 2) {
 142                     table.removeView(row);
 143 //                    Toast.makeText(NewTransactionActivity.this, "LEFT", Toast.LENGTH_LONG).show();
 144                 }
 145                 else {
 146                     Snackbar.make(table, R.string.msg_at_least_two_accounts_are_required, Snackbar.LENGTH_LONG)
 147                             .setAction("Action", null).show();
 148                 }
 149             }
 150 //            @Override
 151 //            public boolean performClick(View view, MotionEvent m) {
 152 //                return true;
 153 //            }
 154             public boolean onTouch(View view, MotionEvent m) {
 155                 return gestureDetector.onTouchEvent(m);
 156             }
 157         });
 158     }
 159
 160     private void hook_text_change_listener(final TextView view) {
 161         view.addTextChangedListener(new TextWatcher() {
 162             @Override
 163             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 164
 165             }
 166
 167             @Override
 168             public void onTextChanged(CharSequence s, int start, int before, int count) {
 169
 170             }
 171
 172             @Override
 173             public void afterTextChanged(Editable s) {
 174 //                Log.d("input", "text changed");
 175                 check_transaction_submittable();
 176             }
 177         });
 178
 179     }
 180
 181     @TargetApi(Build.VERSION_CODES.N)
 182     private void hook_autocompletion_adapter(final AutoCompleteTextView view, final String table, final String field) {
 183         String[] from = {field};
 184         int[] to = {android.R.id.text1};
 185         SQLiteDatabase db = MobileLedgerDB.db;
 186
 187         SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_dropdown_item_1line, null, from, to, 0);
 188         adapter.setStringConversionColumn(1);
 189
 190         FilterQueryProvider provider = new FilterQueryProvider() {
 191             @Override
 192             public Cursor runQuery(CharSequence constraint) {
 193                 if (constraint == null) return null;
 194
 195                 String str = constraint.toString().toUpperCase();
 196                 Log.d("autocompletion", "Looking for "+str);
 197                 String[] col_names = {FontsContract.Columns._ID, field};
 198                 MatrixCursor c = new MatrixCursor(col_names);
 199
 200                 Cursor matches = db.rawQuery(String.format(
 201                         "SELECT %s as a, case when %s_upper LIKE ?||'%%' then 1 " +
 202                                 "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
 203                                 "WHEN %s_upper LIKE '%% '||?||'%%' then 3 " + "else 9 end " +
 204                                 "FROM %s " + "WHERE %s_upper LIKE '%%'||?||'%%' " +
 205                                 "ORDER BY 2, 1;", field, field, field, field, table, field),
 206                         new String[]{str, str, str, str});
 207
 208                 try {
 209                     int i = 0;
 210                     while (matches.moveToNext()) {
 211                         String match = matches.getString(0);
 212                         int order = matches.getInt(1);
 213                         Log.d("autocompletion", String.format("match: %s |%d", match, order));
 214                         c.newRow().add(i++).add(match);
 215                     }
 216                 }
 217                 finally {
 218                     matches.close();
 219                 }
 220
 221                 return c;
 222
 223             }
 224         };
 225
 226         adapter.setFilterQueryProvider(provider);
 227
 228         view.setAdapter(adapter);
 229     }
 230
 231     public boolean onCreateOptionsMenu(Menu menu) {
 232         // Inflate the menu; this adds items to the action bar if it is present.
 233         getMenuInflater().inflate(R.menu.new_transaction, menu);
 234         mSave = menu.findItem(R.id.action_submit_transaction);
 235         if (mSave == null) throw new AssertionError();
 236
 237         check_transaction_submittable();
 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,
 259                 TableRow.LayoutParams.MATCH_PARENT, 1f));
 260         amt.setHint(R.string.new_transaction_amount_hint);
 261         amt.setWidth(0);
 262         amt.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL );
 263         amt.setMinWidth(dp2px(40));
 264         amt.setTextAlignment(EditText.TEXT_ALIGNMENT_VIEW_END);
 265
 266         final TableRow row = new TableRow(this);
 267         row.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT));
 268         row.setGravity(Gravity.BOTTOM);
 269         row.addView(acc);
 270         row.addView(amt);
 271         table.addView(row);
 272
 273         if (focus) acc.requestFocus();
 274
 275         hook_swipe_listener(row);
 276         hook_autocompletion_adapter(acc, MobileLedgerDB.ACCOUNTS_TABLE, "name");
 277         hook_text_change_listener(acc);
 278         hook_text_change_listener(amt);
 279     }
 280
 281     public void addTransactionAccountFromMenu(MenuItem item) {
 282         do_add_account_row(true);
 283     }
 284
 285     public void saveTransactionFromMenu(MenuItem item) {
 286         save_transaction();
 287     }
 288
 289     private void check_transaction_submittable() {
 290         TableLayout table = findViewById(R.id.new_transaction_accounts_table);
 291         int accounts = 0;
 292         int accounts_with_values = 0;
 293         int empty_rows = 0;
 294         for(int i = 0; i < table.getChildCount(); i++ ) {
 295             TableRow row = (TableRow) table.getChildAt(i);
 296
 297             TextView acc_name_v = (TextView) row.getChildAt(0);
 298
 299             String acc_name = String.valueOf(acc_name_v.getText());
 300             acc_name = acc_name.trim();
 301             if (!acc_name.isEmpty()) {
 302                 accounts++;
 303
 304                 TextView amount_v = (TextView) row.getChildAt(1);
 305                 String amt = String.valueOf(amount_v.getText());
 306
 307                 if (!amt.isEmpty()) accounts_with_values++;
 308             } else empty_rows++;
 309         }
 310
 311         if (accounts_with_values == accounts && empty_rows == 0) {
 312             do_add_account_row(false);
 313         }
 314
 315         if ((accounts >= 2) && (accounts_with_values >= (accounts - 1))) {
 316             if (mSave != null) mSave.setVisible(true);
 317         } else {
 318             if (mSave != null) mSave.setVisible(false);
 319         }
 320     }
 321
 322     @Override
 323     public
 324     void done(String error) {
 325         progress.setVisibility(View.INVISIBLE);
 326         Log.d("visuals", "hiding progress");
 327
 328         if (error == null) reset_form();
 329         else Snackbar.make(findViewById(R.id.new_transaction_accounts_table), error,
 330                 BaseTransientBottomBar.LENGTH_LONG).show();
 331
 332         toggle_all_editing(true);
 333         check_transaction_submittable();
 334     }
 335
 336     private void reset_form() {
 337         text_date.setText("");
 338         text_descr.setText("");
 339         while(table.getChildCount() > 2) {
 340             table.removeViewAt(2);
 341         }
 342         for( int i = 0; i < 2; i++ ) {
 343             TableRow tr = (TableRow) table.getChildAt(i);
 344             if ( tr == null) break;
 345
 346             ((TextView)tr.getChildAt(0)).setText("");
 347             ((TextView)tr.getChildAt(1)).setText("");
 348         }
 349
 350         text_descr.requestFocus();
 351     }
 352 }