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35 lines
881 B
TypeScript
35 lines
881 B
TypeScript
import type { Ref } from 'vue'
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function getDefaultValue<T>(propValue: Ref<T>, defaultValue?: T | (() => T)) {
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if (propValue.value !== undefined) {
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return propValue.value
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}
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if (defaultValue !== undefined) {
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return typeof defaultValue === 'function' ? (defaultValue as any)() : defaultValue
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}
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}
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export default function index<T, R = Ref<T>>(
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propValue: Ref<T>,
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option?: {
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defaultValue?: T | (() => T)
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onChange?: (value: T) => void
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}
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): [R, (value: T, ignoreDestroy?: boolean) => void] {
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const innerValue = ref(getDefaultValue(propValue, option?.defaultValue))
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watch(
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() => propValue.value,
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() => (innerValue.value = propValue.value)
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)
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const triggerChange = (newValue: T) => {
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innerValue.value = newValue
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if (option?.onChange) {
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option.onChange(newValue)
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}
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}
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return [innerValue as unknown as R, triggerChange]
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}
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