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fix: trigger onChange twice when inputting using the input method #60

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fix: trigger onChange twice when inputting using the input method #60

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92486ac
fix: trigger onChange twice when inputting using the input method
Adrian-Zephyr-Liao Dec 25, 2023
2b01a69
style: if statement wrapped in braces
Adrian-Zephyr-Liao Dec 25, 2023
01f47ba
test: add test cases for onChange when input method combination is input
Adrian-Zephyr-Liao Dec 25, 2023
a8a9b4e
perf: extracts the logic of the formatter, the condition calls trigge…
Adrian-Zephyr-Liao Dec 26, 2023
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22 changes: 13 additions & 9 deletions src/Input.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,14 @@ const Input = forwardRef<InputRef, InputProps>((props, ref) => {
const valueLength = countConfig.strategy(formatValue);

const isOutOfRange = !!mergedMax && valueLength > mergedMax;
const isExceed = (currentValue: string) => {
return (
!compositionRef.current &&
countConfig.exceedFormatter &&
countConfig.max &&
countConfig.strategy(currentValue) > countConfig.max
);
};

// ======================= Ref ========================
useImperativeHandle(ref, () => ({
Expand Down Expand Up @@ -100,14 +108,9 @@ const Input = forwardRef<InputRef, InputProps>((props, ref) => {
) => {
let cutValue = currentValue;

if (
!compositionRef.current &&
countConfig.exceedFormatter &&
countConfig.max &&
countConfig.strategy(currentValue) > countConfig.max
) {
cutValue = countConfig.exceedFormatter(currentValue, {
max: countConfig.max,
if (isExceed(currentValue)) {
cutValue = countConfig.exceedFormatter!(currentValue, {
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这里不要使用!

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isExceed 里确实判断，看有没有更好的代替？

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我目前能想到的还有一个思路是：
将formatter相关的代码抽离出来，返回一个cutValue和isExceed
const { cutValue, isExceed } = onInternalFormatter(e.currentTarget.value);
在onInternalChange的事件中，formatter后直接触发triggerChange
在onInternalCompositionEnd的事件中，判断是否isExceed，如果为true就触发triggerChange

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感觉这样会容易混淆逻辑 🤔

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我认为fomatter是一个独立的事情，isExceed和cutValue都是和formatter相关的内容，表示格式化后是否超出限制和最终裁剪的值。目前的处境是在change的时候需要格式化，在compositionEnd的时候需要格式化并且条件调用change

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改改看

max: countConfig.max!,
});

if (currentValue !== cutValue) {
Expand Down Expand Up @@ -138,7 +141,8 @@ const Input = forwardRef<InputRef, InputProps>((props, ref) => {
e: React.CompositionEvent<HTMLInputElement>,
) => {
compositionRef.current = false;
triggerChange(e, e.currentTarget.value);
if (isExceed(e.currentTarget.value))
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triggerChange(e, e.currentTarget.value);
onCompositionEnd?.(e);
};

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