// 打印类属性、方法定义
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/* eslint-disable */
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const Print = function (dom, options) {
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if (!(this instanceof Print)) return new Print(dom, options);
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this.options = this.extend({
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'noPrint': '.no-print'
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}, options);
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if ((typeof dom) === "string") {
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this.dom = document.querySelector(dom);
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} else {
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this.isDOM(dom)
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this.dom = this.isDOM(dom) ? dom : dom.$el;
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}
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this.init();
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};
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Print.prototype = {
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init: function () {
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var content = this.getStyle() + this.getHtml();
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this.writeIframe(content);
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},
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extend: function (obj, obj2) {
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for (var k in obj2) {
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obj[k] = obj2[k];
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}
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return obj;
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},
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getStyle: function () {
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var str = "",
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styles = document.querySelectorAll('style,link');
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for (var i = 0; i < styles.length; i++) {
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str += styles[i].outerHTML;
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}
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str += "<style>" + (this.options.noPrint ? this.options.noPrint : '.no-print') + "{display:none;}</style>";
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return str;
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},
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getHtml: function () {
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var inputs = document.querySelectorAll('input');
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var textareas = document.querySelectorAll('textarea');
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var selects = document.querySelectorAll('select');
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for (var k = 0; k < inputs.length; k++) {
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if (inputs[k].type == "checkbox" || inputs[k].type == "radio") {
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if (inputs[k].checked == true) {
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inputs[k].setAttribute('checked', "checked")
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} else {
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inputs[k].removeAttribute('checked')
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}
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} else if (inputs[k].type == "text") {
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inputs[k].setAttribute('value', inputs[k].value)
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} else {
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inputs[k].setAttribute('value', inputs[k].value)
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}
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}
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for (var k2 = 0; k2 < textareas.length; k2++) {
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if (textareas[k2].type == 'textarea') {
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textareas[k2].innerHTML = textareas[k2].value
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}
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}
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for (var k3 = 0; k3 < selects.length; k3++) {
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if (selects[k3].type == 'select-one') {
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var child = selects[k3].children;
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for (var i in child) {
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if (child[i].tagName == 'OPTION') {
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if (child[i].selected == true) {
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child[i].setAttribute('selected', "selected")
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} else {
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child[i].removeAttribute('selected')
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}
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}
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}
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}
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}
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return this.dom.outerHTML;
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},
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writeIframe: function (content) {
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var w, doc, iframe = document.createElement('iframe'),
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f = document.body.appendChild(iframe);
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iframe.id = "myIframe";
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//iframe.style = "position:absolute;width:0;height:0;top:-10px;left:-10px;";
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iframe.setAttribute('style', 'position:absolute;width:0;height:0;top:-10px;left:-10px;');
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w = f.contentWindow || f.contentDocument;
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doc = f.contentDocument || f.contentWindow.document;
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doc.open();
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doc.write(content);
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doc.close();
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var _this = this
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iframe.onload = function(){
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_this.toPrint(w);
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setTimeout(function () {
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document.body.removeChild(iframe)
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}, 100)
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}
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},
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toPrint: function (frameWindow) {
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try {
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setTimeout(function () {
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frameWindow.focus();
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try {
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if (!frameWindow.document.execCommand('print', false, null)) {
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frameWindow.print();
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}
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} catch (e) {
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frameWindow.print();
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}
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frameWindow.close();
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}, 10);
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} catch (err) {
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console.log('err', err);
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}
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},
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isDOM: (typeof HTMLElement === 'object') ?
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function (obj) {
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return obj instanceof HTMLElement;
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} :
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function (obj) {
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return obj && typeof obj === 'object' && obj.nodeType === 1 && typeof obj.nodeName === 'string';
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}
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};
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const MyPlugin = {}
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MyPlugin.install = function (Vue, options) {
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// 4. 添加实例方法
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Vue.prototype.$print = Print
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}
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export default MyPlugin
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