Merge pull request #163 from Onix-Systems/fix/formatters

fix: 'jumping' cursor

Author: cozvtieg9

lib/app/util/formatters/first_character_is_not_digit_formatter.dart

@@ -12,6 +12,8 @@ class FirstCharacterNotDigitFormatter extends TextInputFormatter {
         newValue.text[0].contains(RegExp('[0-9]'))) {
       return oldValue;
     }
-    return newValue;
+    return newValue.copyWith(
+      selection: newValue.selection,
+    );
   }
 }

lib/app/util/formatters/lower_case_formatter.dart

@@ -8,9 +8,15 @@ class LowerCaseFormatter extends TextInputFormatter {
     TextEditingValue oldValue,
     TextEditingValue newValue,
   ) {
+    final newText = newValue.text.toLowerCase();
     return TextEditingValue(
-      text: newValue.text.toLowerCase(),
-      selection: newValue.selection,
+      text: newText,
+      selection: newValue.selection.copyWith(
+        baseOffset: newText.length -
+            (newValue.text.length - newValue.selection.baseOffset),
+        extentOffset: newText.length -
+            (newValue.text.length - newValue.selection.extentOffset),
+      ),
     );
   }
 }

lib/app/util/formatters/method_name_formatter.dart

@@ -25,7 +25,12 @@ class MethodNameFormatter extends TextInputFormatter {
 
     return TextEditingValue(
       text: text,
-      selection: TextSelection.collapsed(offset: text.length),
+      selection: newValue.selection.copyWith(
+        baseOffset: text.length -
+            (newValue.text.length - newValue.selection.baseOffset),
+        extentOffset: text.length -
+            (newValue.text.length - newValue.selection.extentOffset),
+      ),
     );
   }
 }

lib/app/util/formatters/pascal_case_formatter.dart

@@ -9,9 +9,15 @@ class PascalCaseFormatter extends TextInputFormatter {
     TextEditingValue oldValue,
     TextEditingValue newValue,
   ) {
+    final newText = newValue.text.pascalCase;
     return TextEditingValue(
-      text: newValue.text.pascalCase,
-      selection: newValue.selection,
+      text: newText,
+      selection: newValue.selection.copyWith(
+        baseOffset: newText.length -
+            (newValue.text.length - newValue.selection.baseOffset),
+        extentOffset: newText.length -
+            (newValue.text.length - newValue.selection.extentOffset),
+      ),
     );
   }
 }

lib/app/util/formatters/path_formatter.dart

@@ -36,8 +36,11 @@ class PathFormatter extends TextInputFormatter {
 
     return TextEditingValue(
       text: text,
-      selection: TextSelection.collapsed(
-        offset: text.length,
+      selection: newValue.selection.copyWith(
+        baseOffset: text.length -
+            (newValue.text.length - newValue.selection.baseOffset),
+        extentOffset: text.length -
+            (newValue.text.length - newValue.selection.extentOffset),
       ),
     );
   }