vue 点击复制 （自定义指令）

安装插件 clipboard

npm install clipboard --save
           

封装成指令

//directive/copytext.js 文件  基于使用vue+iview的项目
import Clipboard from "clipboard";
import Vue from "vue";

export default {
  bind: (el, binding = {}, vnode) => {
    const clipboard = new Clipboard(el, {
      text: () => binding.value
    });
    const Message = Vue.prototype.$Message;
    clipboard.on("success", e => {
      Message.success(e.text + " 已复制到剪切板");
    });
    clipboard.on("error", e => {
      Message.error("复制失败");
    });
    if (el) {
      el.__clipboard__ = clipboard;
      el.style.cursor = "pointer";
      el.title = el.title || "点击复制";
      el.onmouseover = () => {
        el.style.color = "#4395FF";
      };
      el.onmouseout = () => {
        el.style.color = "";
      };
    }
  },
  update: (el, binding, vnode) => {
    el.__clipboard__.text = () => binding.value;
  },
  unbind: (el, binding) => {
    if (!el) return;
    el.__clipboard__ && el.__clipboard__.destroy();
    delete el.__clipboard__;
  }
};

//directive/index.js
import copytext from "./copytext";
const importDirective = Vue => {
  Vue.directive("copytext", copytext);
};
export default importDirective;

//main.js
import importDirective from '@/directive'
import Vue from 'vue'
/**
 * 注册指令
 */
importDirective(Vue)
           

使用