Merge pull request Expensify#49180 from software-mansion-labs/fix/per…

…centage-form

iOS Rules - Text cursor moves to front after entering the third digit in Percentage field

src/components/PercentageForm.tsx

@@ -1,6 +1,5 @@
 import type {ForwardedRef} from 'react';
-import React, {forwardRef, useCallback, useMemo, useRef, useState} from 'react';
-import type {NativeSyntheticEvent, TextInputSelectionChangeEventData} from 'react-native';
+import React, {forwardRef, useCallback, useMemo, useRef} from 'react';
 import useLocalize from '@hooks/useLocalize';
 import * as MoneyRequestUtils from '@libs/MoneyRequestUtils';
 import CONST from '@src/CONST';
@@ -21,28 +20,13 @@ type PercentageFormProps = {
     label?: string;
 };
 
-/**
- * Returns the new selection object based on the updated amount's length
- */
-const getNewSelection = (oldSelection: {start: number; end: number}, prevLength: number, newLength: number) => {
-    const cursorPosition = oldSelection.end + (newLength - prevLength);
-    return {start: cursorPosition, end: cursorPosition};
-};
-
 function PercentageForm({value: amount, errorText, onInputChange, label, ...rest}: PercentageFormProps, forwardedRef: ForwardedRef<BaseTextInputRef>) {
     const {toLocaleDigit, numberFormat} = useLocalize();
 
     const textInput = useRef<BaseTextInputRef | null>(null);
 
     const currentAmount = useMemo(() => (typeof amount === 'string' ? amount : ''), [amount]);
 
-    const [selection, setSelection] = useState({
-        start: currentAmount.length,
-        end: currentAmount.length,
-    });
-
-    const forwardDeletePressedRef = useRef(false);
-
     /**
      * Sets the selection and the amount accordingly to the value passed to the input
      * @param newAmount - Changed amount from user input
@@ -55,16 +39,13 @@ function PercentageForm({value: amount, errorText, onInputChange, label, ...rest
             // Use a shallow copy of selection to trigger setSelection
             // More info: https://github.com/Expensify/App/issues/16385
             if (!MoneyRequestUtils.validatePercentage(newAmountWithoutSpaces)) {
-                setSelection((prevSelection) => ({...prevSelection}));
                 return;
             }
 
             const strippedAmount = MoneyRequestUtils.stripCommaFromAmount(newAmountWithoutSpaces);
-            const isForwardDelete = currentAmount.length > strippedAmount.length && forwardDeletePressedRef.current;
-            setSelection(getNewSelection(selection, isForwardDelete ? strippedAmount.length : currentAmount.length, strippedAmount.length));
             onInputChange?.(strippedAmount);
         },
-        [currentAmount, onInputChange, selection],
+        [onInputChange],
     );
 
     const formattedAmount = MoneyRequestUtils.replaceAllDigits(currentAmount, toLocaleDigit);
@@ -84,10 +65,6 @@ function PercentageForm({value: amount, errorText, onInputChange, label, ...rest
                 }
                 textInput.current = ref;
             }}
-            selection={selection}
-            onSelectionChange={(e: NativeSyntheticEvent<TextInputSelectionChangeEventData>) => {
-                setSelection(e.nativeEvent.selection);
-            }}
             suffixCharacter="%"
             keyboardType={CONST.KEYBOARD_TYPE.DECIMAL_PAD}
             // eslint-disable-next-line react/jsx-props-no-spreading