import type { Ref } from 'vue';
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import { getCurrentInstance, reactive, shallowRef, watchEffect } from 'vue';
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import { camelCase } from 'lodash-es';
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interface Params {
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excludeDefaultKeys?: boolean;
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excludeKeys?: string[];
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excludeListeners?: boolean;
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isCamelCase?: boolean;
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}
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const DEFAULT_EXCLUDE_KEYS = ['class', 'style'];
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const LISTENER_PREFIX = /^on[A-Z]/;
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function entries<T>(obj: Recordable<T>): [string, T | undefined][] {
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return Object.keys(obj).map((key: string) => [key, obj[key]]);
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}
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export function useAttrs(params: Params = {}): object | Ref<Recordable> {
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const instance = getCurrentInstance();
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if (!instance) return {};
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const {
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excludeDefaultKeys = true,
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excludeKeys = [],
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excludeListeners = false,
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isCamelCase = true, // 是否默认转驼峰
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} = params;
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const attrs = shallowRef({});
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const allExcludeKeys = new Set([
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...(excludeDefaultKeys ? DEFAULT_EXCLUDE_KEYS : []),
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...excludeKeys,
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]);
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// Since attrs are not reactive, make it reactive instead of doing in `onUpdated` hook for better performance
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instance.attrs = reactive(instance.attrs);
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watchEffect(() => {
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const res = entries(instance.attrs).reduce((acm, [key, val]) => {
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if (
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!allExcludeKeys.has(key) &&
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!(excludeListeners && LISTENER_PREFIX.test(key))
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) {
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const realKey =
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isCamelCase && !key.includes(':') ? camelCase(key) : key;
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acm[realKey] = val;
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}
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return acm;
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}, {} as Recordable);
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attrs.value = res;
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});
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return attrs;
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}
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