4.11.0

CHANGELOG.md

@@ -1,3 +1,7 @@
+## [4.11.0] - 2024-06-07
+- Added `forceCursorToEnd` parameter: now you can define if the controller will always force the user to input the numbers on the end of the string.
+- Fixed If enableNegative + showZeroValue properties are true, then negative #s cannot be entered! [22](https://github.com/IsaiasSantana/currency_textfield/issues/22).
+
 ## [4.10.1] - 2024-06-04
 - Added ios folder to example.
 

example/lib/input_field.dart

@@ -70,7 +70,7 @@ class _BuildInputFieldState extends State<BuildInputField> {
           style: widget.estilo,
           maxLines: widget.lines,
           obscureText: widget.oculto,
-          cursorColor: Colors.transparent,
+          cursorColor: Colors.red,
           controller: widget.controle,
           inputFormatters: [widget.mascara ?? allValues],
           autocorrect: false,

lib/currency_textfield.dart

@@ -8,61 +8,68 @@ import 'dart:math';
 ///
 /// `currencySymbol` is your currency symbol.
 ///
-/// Default `R\$`
+/// Default: `R\$`
 ///
 /// `decimalSymbol` is the decimal separator symbol.
 ///
-/// Default `,`
+/// Default: `,`
 ///
 /// `thousandSymbol` is the thousand separator symbol.
 ///
-/// @Default `.`
+/// @Default: `.`
 ///
 /// `initDoubleValue` is the optional initial value in double format.
 ///
-/// Default `null`
+/// Default: `null`
 ///
 /// `initIntValue` is the optional initial value in int format. It'll be divided by 100 before being presented.
 ///
-/// Default `null`
+/// Default: `null`
 ///
 /// `numberOfDecimals` lets you define the max number of decimal digits to be presented.
 ///
-/// Default `2`
+/// Default: `2`
 ///
 /// `maxDigits` lets you define the max number of digits to be presented.
 ///
-/// Default `15`
+/// Default: `15`
 ///
 /// `currencyOnLeft` lets you define if the symbol will be on left or right of the value.
 ///
-/// Default `true`
+/// Default: `true`
 ///
 /// `enableNegative` lets you define if the user can set negative values.
 ///
-/// Default `true`
+/// Default: `true`
 ///
 /// `currencySeparator` lets you define the separator between the symbol and the value.
 ///
-/// Default `' '`
+/// Default: `' '`
 ///
 /// `maxValue` lets you define the maximum allowed value of the controller.
 ///
-/// Default `null`
+/// Default: `null`
 ///
 /// `startWithSeparator` lets you define if the controller starts with decimals activated.
 ///
-/// Default `true`
+/// Default: `true`
 ///
 /// `showZeroValue` lets you define if the controller will show the 0 value.
 ///
-/// Default `false`
+/// Default: `false`
+///
+/// `forceCursorToEnd` lets you define if the controller will always force the user to input the numbers on the end of the string.
+///
+/// Default: `true`
 ///
 class CurrencyTextFieldController extends TextEditingController {
   final int _maxDigits, _numberOfDecimals;
   final String _decimalSymbol, _thousandSymbol, _currencySeparator;
-  final bool _currencyOnLeft, _enableNegative, _resetSeparator;
-  final bool _showZeroValue;
+  final bool _currencyOnLeft,
+      _enableNegative,
+      _resetSeparator,
+      _showZeroValue,
+      _forceCursorToEnd;
   final RegExp _onlyNumbersRegex = RegExp(r'[^\d]');
   late String _currencySymbol, _symbolSeparator;
 
@@ -115,6 +122,7 @@ class CurrencyTextFieldController extends TextEditingController {
     double? maxValue,
     bool startWithSeparator = true,
     bool showZeroValue = false,
+    bool forceCursorToEnd = true,
   })  : assert(thousandSymbol != decimalSymbol,
             "thousandSymbol must be different from decimalSymbol."),
         assert(numberOfDecimals >= 0,
@@ -130,15 +138,18 @@ class CurrencyTextFieldController extends TextEditingController {
         _maxValue = maxValue,
         _startWithSeparator = startWithSeparator,
         _resetSeparator = !startWithSeparator,
-        _showZeroValue = showZeroValue {
+        _showZeroValue = showZeroValue,
+        _forceCursorToEnd = forceCursorToEnd {
     _changeSymbol();
     forceValue(initDoubleValue: initDoubleValue, initIntValue: initIntValue);
     addListener(_listener);
   }
 
   void _listener() {
     if (_previewsText == text) {
-      _setSelectionBy(offset: text.length);
+      if (_forceCursorToEnd) {
+        _setSelectionBy(offset: text.length);
+      }
       return;
     }
 
@@ -168,7 +179,7 @@ class CurrencyTextFieldController extends TextEditingController {
     }
 
     if ((double.tryParse(clearText) ?? 0.0) == 0.0) {
-      _zeroValue();
+      _zeroValue(forceNegative: text.endsWith('-'));
       return;
     }
 
@@ -284,9 +295,9 @@ class CurrencyTextFieldController extends TextEditingController {
   }
 
   ///resets the controller to 0.
-  void _zeroValue({bool resetText = true}) {
+  void _zeroValue({bool resetText = true, bool forceNegative = false}) {
     _value = 0;
-    _isNegative = false;
+    _isNegative = forceNegative;
 
     if (resetText || _showZeroValue) {
       _changeText();

pubspec.yaml

@@ -1,6 +1,6 @@
 name: currency_textfield
 description: A flutter package that implements a Controller for currency text input.
-version: 4.10.1
+version: 4.11.0
 homepage: https://github.com/IsaiasSantana/currency_textfield
 environment:
   sdk: '>=3.0.0 <4.0.0'

test/currency_textfield_test.dart

@@ -195,4 +195,14 @@ void main() {
     expect(controller.text, '');
     expect(controller2.text, '');
   });
+
+  test('enableNegative + showZeroValue bug fix', () {
+    final controller = CurrencyTextFieldController(showZeroValue: true);
+    controller.text = "R\$ 0,00-";
+
+    expect(controller.text, '-R\$ 0,00');
+    controller.clear();
+    controller.text = "R\$ 7,00-";
+    expect(controller.text, "R\$ 7,00");
+  });
 }