utils.js
2.23 KB
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/**
* 获取文件名和后缀
* @param {String} name
*/
export const get_file_ext = (name) => {
const last_len = name.lastIndexOf('.')
const len = name.length
return {
name: name.substring(0, last_len),
ext: name.substring(last_len + 1, len)
}
}
/**
* 获取扩展名
* @param {Array} fileExtname
*/
export const get_extname = (fileExtname) => {
if (!Array.isArray(fileExtname)) {
let extname = fileExtname.replace(/(\[|\])/g, '')
return extname.split(',')
} else {
return fileExtname
}
return []
}
/**
* 获取文件和检测是否可选
*/
export const get_files_and_is_max = (res, _extname) => {
let filePaths = []
let files = []
if(!_extname || _extname.length === 0){
return {
filePaths,
files
}
}
res.tempFiles.forEach(v => {
let fileFullName = get_file_ext(v.name)
const extname = fileFullName.ext.toLowerCase()
if (_extname.indexOf(extname) !== -1) {
files.push(v)
filePaths.push(v.path)
}
})
if (files.length !== res.tempFiles.length) {
uni.showToast({
title: `当前选择了${res.tempFiles.length}个文件 ，${res.tempFiles.length - files.length} 个文件格式不正确`,
icon: 'none',
duration: 5000
})
}
return {
filePaths,
files
}
}
/**
* 获取图片信息
* @param {Object} filepath
*/
export const get_file_info = (filepath) => {
return new Promise((resolve, reject) => {
uni.getImageInfo({
src: filepath,
success(res) {
resolve(res)
},
fail(err) {
reject(err)
}
})
})
}
/**
* 获取封装数据
*/
export const get_file_data = async (files, type = 'image') => {
// 最终需要上传数据库的数据
let fileFullName = get_file_ext(files.name)
const extname = fileFullName.ext.toLowerCase()
let filedata = {
name: files.name,
uuid: files.uuid,
extname: extname || '',
cloudPath: files.cloudPath,
fileType: files.fileType,
url: files.path || files.path,
size: files.size, //单位是字节
image: {},
path: files.path,
video: {}
}
if (type === 'image') {
const imageinfo = await get_file_info(files.path)
delete filedata.video
filedata.image.width = imageinfo.width
filedata.image.height = imageinfo.height
filedata.image.location = imageinfo.path
} else {
delete filedata.image
}
return filedata
}