多维表格
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const imageExt = [
'jpeg',
'gif',
'png',
'png',
'svg',
'bmp',
'ico',
'jpg',
'webp',
'avif',
'heif',
'heifs',
'heic',
'heic-sequence',
]
const videoExt = [
'webm',
'mpg',
'mp2',
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'mp3',
'mpeg',
'ogg',
'mp4',
'm4v',
'avi',
'wmv',
'mov',
'qt',
'flv',
'mkv',
'3gp',
'3g2',
'vob',
'ts',
]
const officeExt = [
'txt',
'css',
'html',
'php',
'c',
'cpp',
'h',
'hpp',
'js',
'doc',
'docx',
'xls',
'xlsx',
'ppt',
'pptx',
'pdf',
'pages',
'ai',
'psd',
'tiff',
'dxf',
'svg',
'eps',
'ps',
'ttf',
'xps',
'zip',
'rar',
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'csv',
]
const isAudio = (name: string, mimetype?: string) => {
return name?.toLowerCase().endsWith('.mp3') || mimetype?.startsWith('audio/')
}
const isVideo = (name: string, mimetype?: string) => {
return videoExt.some((e) => name?.toLowerCase().endsWith(`.${e}`)) || mimetype?.startsWith('video/')
}
const isImage = (name: string, mimetype?: string) => {
return imageExt.some((e) => name?.toLowerCase().endsWith(`.${e}`)) || mimetype?.startsWith('image/')
}
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const isPdf = (name: string, mimetype?: string) => {
return name?.toLowerCase().endsWith('.pdf') || mimetype?.startsWith('application/pdf')
}
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const isOffice = (name: string, _mimetype?: string) => {
return officeExt.some((e) => name?.toLowerCase().endsWith(`.${e}`))
}
export { isImage, imageExt, isVideo, isPdf, isOffice, isAudio }
// Ref : https://stackoverflow.com/a/12002275
// Tested in Mozilla Firefox browser, Chrome
export function readFile(FileElement: HTMLInputElement, CallBackFunction: (content?: any) => void) {
try {
if (!FileElement.files || !FileElement.files.length) {
return CallBackFunction()
}
const file = FileElement.files[0]
if (file) {
const reader = new FileReader()
reader.readAsText(file, 'UTF-8')
reader.onload = function (evt) {
CallBackFunction(evt.target?.result)
}
reader.onerror = function () {
CallBackFunction()
}
}
} catch (Exception) {
const fallBack = ieReadFile(FileElement.value)
// eslint-disable-next-line eqeqeq
if (fallBack != false) {
CallBackFunction(fallBack)
}
}
}
/// Reading files with Internet Explorer
function ieReadFile(filename: string) {
try {
const fso = new ActiveXObject('Scripting.FileSystemObject')
const fh = fso.OpenTextFile(filename, 1)
const contents = fh.ReadAll()
fh.Close()
return contents
} catch (Exception) {
return false
}
}
export function extractImageSrcFromRawHtml(rawText: string) {
// Parse the provided HTML string
const parser = new DOMParser()
const doc = parser.parseFromString(rawText, 'text/html')
// Extract the img element
const imgElement = doc.querySelector('img')
// Check if the img element exists
if (imgElement) {
// Extract the src attribute
return imgElement.getAttribute('src')
}
}