fant-mini-plus/components/hd-loading/index.ts

fant-mini-plus是一个基于Vue3和TypeScript的uni-app高效UI组件库，提供丰富的组件和样式，帮助开发者快速构建高质量的移动应用。

/*
 * @Author: weisheng
 * @Date: 2022-12-14 17:33:21
 * @LastEditTime: 2023-05-19 16:44:07
 * @LastEditors: weisheng
 * @Description:
 * @FilePath: \fant-mini-plus\src\uni_modules\fant-mini-plus\components\hd-loading\index.ts
 * 记得注释
 */
import { type InjectionKey, type Ref, nextTick, provide, ref } from 'vue'
import { CommonUtil } from '../../index'
import type { Loading, LoadingOptions } from './types'

/**
 * useLoading 用到的key
 *
 * @internal
 */
export const loadingDefaultKey = Symbol('__LOADING__') as InjectionKey<Ref<boolean>>
export const loadingDefaultOptionKey = Symbol('__LOADING_OPTION__') as InjectionKey<Ref<LoadingOptions>>

/**
 * 默认参数
 */
export const defaultLoadingOptions: LoadingOptions = {
  background: true,
  title: '',
  delayTime: 0,
  type: 'flower'
}

export function useLoading(selector: string = ''): Loading {
  const loadingShow = ref<boolean>(false) // 是否展示loading
  const loadingOption = ref<LoadingOptions>(defaultLoadingOptions) // Loading选项
  const loadingKey = selector ? '__LOADING__' + selector : loadingDefaultKey
  const loadingOptionKey = selector ? '__LOADING_OPTION__' + selector : loadingDefaultOptionKey
  provide(loadingOptionKey, loadingOption)
  provide(loadingKey, loadingShow)

  const showLoading = (option: LoadingOptions) => {
    loadingOption.value = CommonUtil.deepMerge(defaultLoadingOptions, option) as LoadingOptions
    if (loadingShow.value) {
      loadingShow.value = false
      nextTick(() => {
        loadingShow.value = true
      })
    } else {
      loadingShow.value = true
    }
  }

  const hideLoading = () => {
    loadingOption.value = defaultLoadingOptions
    loadingShow.value = false
  }
  return {
    showLoading,
    hideLoading
  }
}