适用于vue项目的打印插件
此方法只适用于现代浏览器,IE10以下就别用了
// 使用时请尽量在nickTick中调用此方法
//打印
export default (refs, cb) => {
let cloneN
if (Array.isArray(refs)) {
cloneN = refs[0].cloneNode(true)
} else {
cloneN = refs.cloneNode(true)
}
const body = document.getElementsByTagName('body')[0]
cloneN.style.position = 'absolute'
cloneN.style.zIndex = '9999999999'
cloneN.style.top = 0
cloneN.style.left = 0
cloneN.style.width = '100%'
cloneN.style.minHeight = '100%'
cloneN.style.background = '#fff'
body.appendChild(cloneN)
// 配置样式
const bt = body.style.cssText
body.style.overflowY = 'auto'
body.style.cloneN = 'auto'
const eld = document.querySelector('.el-dialog__wrapper')
const dc = eld.style.cssText
eld.style.display = 'none'
// 图片全部加载完成后再开始打印
let imgs = cloneN.getElementsByTagName('img')
let len = imgs.length
let ni = 0
const print = () => {
ni += 1
if (ni === len) {
// 开始打印
window.print()
// 还原样式
body.style = bt
eld.style = dc
// 移除节点
body.removeChild(cloneN)
// 回调
if (cb) {
cb()
}
}
}
for (let i of imgs) {
i.onload = () => {
print()
}
i.onerror = () => {
print()
}
}
}