import Vue from 'vue'
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// 导入组件
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import SaveShareFileDialog from './Dialog.vue'
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// 使用基础 Vue 构造器，创建一个“子类”
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const SaveShareFileConstructor = Vue.extend(SaveShareFileDialog)
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let saveShareFileInstance = null
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/**
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* 初始化保存分享文件实例
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* @param {array} fileInfo 要保存的文件数组
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*/
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const initInstanceSaveShareFile = (fileInfo) => {
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saveShareFileInstance = new SaveShareFileConstructor({
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el: document.createElement('div'),
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data() {
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return {
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fileInfo
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}
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}
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})
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}
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/**
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* 保存分享文件 Promise 函数
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* @returns {Promise} 抛出确认和取消回调函数
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*/
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const showSaveShareFileDialog = (obj) => {
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// 非首次调用服务时，在 DOM 中移除上个实例
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if (saveShareFileInstance !== null) {
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document.body.removeChild(saveShareFileInstance.$el)
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}
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let { fileInfo } = obj
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return new Promise((reslove) => {
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initInstanceSaveShareFile(fileInfo)
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saveShareFileInstance.callback = (res) => {
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reslove(res)
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// 服务取消时卸载 DOM
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if (res === 'cancel' && saveShareFileInstance !== null) {
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document.body.removeChild(saveShareFileInstance.$el)
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saveShareFileInstance = null
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}
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}
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document.body.appendChild(saveShareFileInstance.$el) // 挂载 DOM
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Vue.nextTick(() => {
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saveShareFileInstance.visible = true // 打开对话框
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})
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})
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}
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export default showSaveShareFileDialog
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