vue自定义全局弹框组件

1. 在components文件夹下新增一个组件文件夹Dialog，新建一个模板组件Dialog.vue

   <template>
     <div class="u_dialog_panel" @touchmove.stop="noop">
       <div class="mask" v-if="visible" @click="handleClose"></div>
       <transition name="open">
         <div v-if="visible" class="dialog_body">
           <slot></slot>
           <div class="btns" v-if="confirmText || cancleText">
             <div class="cancle btn" v-if="cancleText" @click="handleCancle">{{cancleText}}</div>
             <div class="confirm btn" :style="confirmStyle" v-if="confirmText" @click="handleConfirm">{{confirmText}}</div>
           </div>
         </div>
       </transition>
     </div>
   </template>
   <script>
   export default {
     name: 'UDialog',
     props: {
       visible: { type: Boolean, default: false, required: true },
       // 确定按钮的文案
       confirmText: { type: String, default: '确定' },
       confirmStyle: { type: String, default: '' },
       // 取消按钮的文案
       cancleText: { type: String, default: '取消' },
       cancleStyle: { type: String, default: '' },
     },
     created () {
       this.$nextTick(() => {
         document.body.insertBefore(this.$el, document.body.lastChild)
       })
     },
     beforeDestroy () {
       document.body.removeChild(this.$el)
     },
     methods: {
       // 关闭弹窗
       handleClose () { this.$emit('close') },
       // 确定按钮
       handleConfirm () { this.$emit('confirm') },
       // 取消按钮
       handleCancle () { this.$emit('cancle') },
       noop () {}
     }
   }
   </script>
   
   <style lang="less" scoped>
   .u_dialog_panel {
     .mask {
       width: 100vw;
       height: 100vh;
       background-color: rgba(0, 0, 0, 0.5);
       position: fixed;
       left: 0;
       top: 0;
       z-index: 100;
       backdrop-filter: blur(5px);
     }
     .dialog_body{
       width: 80vw;
       background-color: #fff;
       position: fixed;
       left: 50vw;
       top: 50vh;
       z-index: 100;
       transform: translate(-50%, -50%);
       transform-origin: 0 0;
       border-radius: .875rem;
       &.open-enter {
         opacity: 0;
         transform: scale(0.7) translate(-50%, -50%);
         transition: all 0.3s;
       }
       &.open-enter-to {
         opacity: 1;
         transform: scale(1) translate(-50%, -50%);
         transition: all 0.3s;
       }
       .btns {
         display: flex;
         justify-content: space-between;
         align-items: center;
         .btn {
           display: flex;
           justify-content: center;
           align-items: center;
           flex-grow: 1;
           width: 50%;
           height: 2.875rem;
           border-top: 1px solid #ddd;
           box-sizing: border-box;
           display: flex;
           justify-content: center;
           align-items: center;
           font-size: .875rem;
           & + .btn {
             border-left: 1px solid #ddd;
           }
           &.cancle {
             color: #666666;
           }
           &.confirm {
             color: #FF5883;
           }
         }
       }
     }
   }
   </style>
   
   

2. 在此文件夹再新建一个index.js

   import Dialog from './Dialog'
   
   Dialog.install = function (Vue, options) {
     Vue.component(`${Dialog.name}`, Dialog)
   }
   
   export default Dialog
   
   

3. 最后再main.js里注册为全局组件

   import Dialog from './components/Dialog/index.js'
   
   Vue.use(Dialog)
   

这样就可以在其他组件里无需声明而使用此组件