57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
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/**
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* 本地文件选择
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*/
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export class FilePicker {
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/**
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* 接口是否可用
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* @returns { Boolean }
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*/
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static canUse() {
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return !!(window.showDirectoryPicker && window.showOpenFilePicker)
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}
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/**
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* 选择一个目录
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* @returns { Promise<FileSystemDirectoryHandle> }
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*/
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static chooseDirectory() {
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if (!this.canUse()) {
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throw new Error('Not Support showDirectoryPicker')
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}
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return window.showDirectoryPicker()
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}
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/**
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* 选择一个文件
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* @param { Boolean } multiple
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* @param { { description?: string; accept?: { [key: string]: string[]; } } } types
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* @returns { Promise<FileSystemFileHandle[]> }
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*/
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static chooseFile(multiple, types) {
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if (!this.canUse()) {
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throw new Error('Not Support showOpenFilePicker')
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}
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const pickerOpts = {
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multiple,
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types,
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excludeAcceptAllOption: true
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}
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return window.showOpenFilePicker(pickerOpts)
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}
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/**
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* 判断一个文件是否在某个目录下
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* @param {FileSystemDirectoryHandle} directoryHandle
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* @param {FileSystemFileHandle} fileHandle
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*/
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static async isFileInDirectory(directoryHandle, fileHandle) {
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const relativePaths = await directoryHandle.resolve(fileHandle)
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if (relativePaths === null) {
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return false
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} else {
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return true
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}
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}
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}
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