|
|
@@ -0,0 +1,163 @@
|
|
|
+// 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
|
