utils.js
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import test from '../../libs/function/test'
function pickExclude(obj, keys) {
// 某些情况下，type可能会为
if (!['[object Object]', '[object File]'].includes(Object.prototype.toString.call(obj))) {
return {}
}
return Object.keys(obj).reduce((prev, key) => {
if (!keys.includes(key)) {
prev[key] = obj[key]
}
return prev
}, {})
}
function formatImage(res) {
return res.tempFiles.map((item) => ({
...pickExclude(item, ['path']),
type: 'image',
url: item.path,
thumb: item.path,
size: item.size,
// #ifdef H5
name: item.name,
file: item
// #endif
// #ifndef H5
name: item.path.split('/').pop() + '.png',
// #endif
}))
}
function formatVideo(res) {
// console.log(res)
return [
{
...pickExclude(res, ['tempFilePath', 'thumbTempFilePath', 'errMsg']),
type: 'video',
url: res.tempFilePath,
thumb: res.thumbTempFilePath,
size: res.size,
width: res.width || 0, // APP 2.1.0+、H5、微信小程序、京东小程序
height: res.height || 0, // APP 2.1.0+、H5、微信小程序、京东小程序
// #ifdef H5
name: res.name,
file: res
// #endif
// #ifndef H5
name: res.tempFilePath.split('/').pop() + '.mp4',
// #endif
}
]
}
function formatMedia(res) {
return res.tempFiles.map((item) => ({
...pickExclude(item, ['fileType', 'thumbTempFilePath', 'tempFilePath']),
type: res.type,
url: item.tempFilePath,
thumb: res.type === 'video' ? item.thumbTempFilePath : item.tempFilePath,
size: item.size,
// #ifdef H5
file: item
// #endif
// #ifndef H5
name: item.tempFilePath.split('/').pop() + (res.type === 'video' ? '.mp4': '.png'),
// #endif
}))
}
function formatFile(res) {
return res.tempFiles.map((item) => ({
...pickExclude(item, ['path']),
url: item.path,
size:item.size,
// #ifdef H5
name: item.name,
type: item.type,
file: item
// #endif
}))
}
export function chooseFile({
accept,
multiple,
capture,
compressed,
maxDuration,
sizeType,
camera,
maxCount,
extension
}) {
try {
capture = test.array(capture) ? capture : capture.split(',');
} catch(e) {
capture = [];
}
return new Promise((resolve, reject) => {
switch (accept) {
case 'image':
uni.chooseImage({
count: multiple ? Math.min(maxCount, 9) : 1,
sourceType: capture,
sizeType,
success: (res) => resolve(formatImage(res)),
fail: reject
})
break
// #ifdef MP-WEIXIN
// 只有微信小程序才支持chooseMedia接口
case 'media':
wx.chooseMedia({
count: multiple ? Math.min(maxCount, 9) : 1,
sourceType: capture,
maxDuration,
sizeType,
camera,
success: (res) => resolve(formatMedia(res)),
fail: reject
})
break
// #endif
case 'video':
uni.chooseVideo({
sourceType: capture,
compressed,
maxDuration,
camera,
success: (res) => resolve(formatVideo(res)),
fail: reject
})
break
// #ifdef MP-WEIXIN || H5
// 只有微信小程序才支持chooseMessageFile接口
case 'file':
let params = {
count: multiple ? maxCount : 1,
type: accept,
success: (res) => resolve(formatFile(res)),
fail: reject
}
// Array<string>根据文件拓展名过滤，仅 type==file 时有效。每一项都不能是空字符串。默认不过滤。
if (extension.length && extension.length > 0) {
params.extension = extension
}
// #ifdef MP-WEIXIN
wx.chooseMessageFile(params)
// #endif
// #ifdef H5
// 需要hx2.9.9以上才支持uni.chooseFile
uni.chooseFile(params)
// #endif
break
// #endif
default:
// 此为保底选项，在accept不为上面任意一项的时候选取全部文件
// #ifdef MP-WEIXIN
wx.chooseMessageFile({
count: multiple ? maxCount : 1,
type: 'all',
success: (res) => resolve(formatFile(res)),
fail: reject
})
// #endif
// #ifdef H5
// 需要hx2.9.9以上才支持uni.chooseFile
let paramsFile = {
count: multiple ? maxCount : 1,
type: 'all',
success: (res) => resolve(formatFile(res)),
fail: reject
}
if (extension.length && extension.length > 0) {
paramsFile.extension = extension
}
uni.chooseFile(paramsFile)
// #endif
}
})
}