<el-dialog :visible.sync="iframeOpen" title="文档" ref="appendixDialog" :show-close="true" :width="'900px'"
class="dialog-div-pre-style" center>
<div v-html="fileUrl"></div>
</el-dialog>
// 下载pdf 和 wrod MP4
down(){
const fileRoute = this.formData.responsibilityConfirmation ? this.formData.responsibilityConfirmation :
'' // (新增与修改字段不同导致需要进行兼容)
const type = fileRoute.substring(fileRoute.lastIndexOf('.') + 1).toLocaleLowerCase() // 后缀名
this.fileUrl = process.env.VUE_APP_BASE_API + fileRoute
fetch(this.fileUrl).then(res => res.blob()).then(blob => { /// MP4 转成文件流
const a = document.createElement('a');
document.body.appendChild(a)
a.style.display = 'none'
// 使用获取到的blob对象创建的url
const url = window.URL.createObjectURL(blob);
a.href = url;
// 指定下载的文件名
a.download = new Date().getTime() + "xxxx."+type;
a.click();
document.body.removeChild(a)
// 移除blob对象的url
window.URL.revokeObjectURL(url);
});
},
iframeOk() {
// 读取 wrod 转成 html 渲染页面
const fileRoute = this.formData.responsibilityConfirmation ?this.formData.responsibilityConfirmation :
'' // (新增与修改字段不同导致需要进行兼容)
const type = fileRoute.substring(fileRoute.lastIndexOf('.') + 1).toLocaleLowerCase() // 后缀名
this.fileUrl = process.env.VUE_APP_BASE_API + fileRoute
if(type=='pdf'){
window.open(this.fileUrl);
}else{
this.iframeOpen = true
this.fileName = '预览'
if (type.indexOf('doc') !== -1 || type.indexOf('docx') !== -1) { // WORD
this.fileType = 'doc'
this.handlerDocPreview() // 现在不需要file对象，直接使用数据缓冲区
}
}
handlerDocPreview() {
try {
// ArrayBuffer
const file = this.fileUrl
this.fileUrl = '正在加载……'
var xhr = new XMLHttpRequest()
xhr.open('get', file, true)
xhr.responseType = 'arraybuffer'
const that = this
xhr.onload = function(e) {
console.log(xhr)
if (xhr.status == 200) {
const data = new Uint8Array(xhr.response) // 可直接使用xhr.reponse
mammoth.convertToHtml({
arrayBuffer: data
}).then((result) => {
that.fileUrl = result.value
}).done()
}
}
xhr.send()
} catch (e) {
this.fileUrl = '<h1 style="text-align: center">' + this.emptyTips + '</h1>'
}
},
// 打印内容
printContext() {
this.$print(this.$refs.print)
this.$print(this.$refs.print, {
'no-print': '.do-not-print-div' // 这是不打印的 内容
})
},
image.png
image.png
image.png
image.png
print.js
// 打印类属性、方法定义
/* eslint-disable */
const Print = function (dom, options) {
if (!(this instanceof Print)) return new Print(dom, options);
this.options = this.extend({
'noPrint': '.no-print'
}, options);
if ((typeof dom) === "string") {
this.dom = document.querySelector(dom);
} else {
this.isDOM(dom)
this.dom = this.isDOM(dom) ? dom : dom.$el;
}
this.init();
};
Print.prototype = {
init: function () {
var content = this.getStyle() + this.getHtml();
this.writeIframe(content);
},
extend: function (obj, obj2) {
for (var k in obj2) {
obj[k] = obj2[k];
}
return obj;
},
getStyle: function () {
var str = "",
styles = document.querySelectorAll('style,link');
for (var i = 0; i < styles.length; i++) {
str += styles[i].outerHTML;
}
str += "<style>" + (this.options.noPrint ? this.options.noPrint : '.no-print') + "{display:none;}</style>";
return str;
},
getHtml: function () {
var inputs = document.querySelectorAll('input');
var textareas = document.querySelectorAll('textarea');
var selects = document.querySelectorAll('select');
for (var k = 0; k < inputs.length; k++) {
if (inputs[k].type == "checkbox" || inputs[k].type == "radio") {
if (inputs[k].checked == true) {
inputs[k].setAttribute('checked', "checked")
} else {
inputs[k].removeAttribute('checked')
}
} else if (inputs[k].type == "text") {
inputs[k].setAttribute('value', inputs[k].value)
} else {
inputs[k].setAttribute('value', inputs[k].value)
}
}
for (var k2 = 0; k2 < textareas.length; k2++) {
if (textareas[k2].type == 'textarea') {
textareas[k2].innerHTML = textareas[k2].value
}
}
for (var k3 = 0; k3 < selects.length; k3++) {
if (selects[k3].type == 'select-one') {
var child = selects[k3].children;
for (var i in child) {
if (child[i].tagName == 'OPTION') {
if (child[i].selected == true) {
child[i].setAttribute('selected', "selected")
} else {
child[i].removeAttribute('selected')
}
}
}
}
}
// 包裹要打印的元素
// fix: https://github.com/xyl66/vuePlugs_printjs/issues/36
let outerHTML = this.wrapperRefDom(this.dom).outerHTML
return outerHTML;
},
// 向父级元素循环，包裹当前需要打印的元素
// 防止根级别开头的 css 选择器不生效
wrapperRefDom: function (refDom) {
let prevDom = null
let currDom = refDom
// 判断当前元素是否在 body 中，不在文档中则直接返回该节点
if (!this.isInBody(currDom)) return currDom
while (currDom) {
if (prevDom) {
let element = currDom.cloneNode(false)
element.appendChild(prevDom)
prevDom = element
} else {
prevDom = currDom.cloneNode(true)
}
currDom = currDom.parentElement
}
return prevDom
},
writeIframe: function (content) {
var w, doc, iframe = document.createElement('iframe'),
f = document.body.appendChild(iframe);
iframe.id = "myIframe";
//iframe.style = "position:absolute;width:0;height:0;top:-10px;left:-10px;";
iframe.setAttribute('style', 'position:absolute;width:0;height:0;top:-10px;left:-10px;');
w = f.contentWindow || f.contentDocument;
doc = f.contentDocument || f.contentWindow.document;
doc.open();
doc.write(content);
doc.close();
var _this = this
iframe.onload = function(){
_this.toPrint(w);
setTimeout(function () {
document.body.removeChild(iframe)
}, 100)
}
},
toPrint: function (frameWindow) {
try {
setTimeout(function () {
frameWindow.focus();
try {
if (!frameWindow.document.execCommand('print', false, null)) {
frameWindow.print();
}
} catch (e) {
frameWindow.print();
}
frameWindow.close();
}, 10);
} catch (err) {
console.log('err', err);
}
},
// 检查一个元素是否是 body 元素的后代元素且非 body 元素本身
isInBody: function (node) {
return (node === document.body) ? false : document.body.contains(node);
},
isDOM: (typeof HTMLElement === 'object') ?
function (obj) {
return obj instanceof HTMLElement;
} :
function (obj) {
return obj && typeof obj === 'object' && obj.nodeType === 1 && typeof obj.nodeName === 'string';
}
};
const MyPlugin = {}
MyPlugin.install = function (Vue, options) {
// 4. 添加实例方法
Vue.prototype.$print = Print
}
export default MyPlugin
