vue实现弹窗组件

Vue 弹窗组件的实现方法

基础弹窗组件实现

创建一个名为Modal.vue的组件文件，包含模板、样式和逻辑：

<template>
  <div class="modal-mask" v-show="visible" @click.self="close">
    <div class="modal-container">
      <div class="modal-header">
        <slot name="header"></slot>
      </div>
      <div class="modal-body">
        <slot></slot>
      </div>
      <div class="modal-footer">
        <slot name="footer"></slot>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    visible: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    close() {
      this.$emit('update:visible', false)
    }
  }
}
</script>

<style>
.modal-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.modal-container {
  background: white;
  padding: 20px;
  border-radius: 4px;
  min-width: 300px;
}
</style>

使用弹窗组件

在父组件中引入并使用弹窗：

<template>
  <button @click="showModal = true">打开弹窗</button>
  <Modal v-model:visible="showModal">
    <template #header>
      <h3>标题</h3>
    </template>
    <p>弹窗内容</p>
    <template #footer>
      <button @click="showModal = false">关闭</button>
    </template>
  </Modal>
</template>

<script>
import Modal from './Modal.vue'

export default {
  components: { Modal },
  data() {
    return {
      showModal: false
    }
  }
}
</script>

动画效果增强

为弹窗添加过渡动画：

<template>
  <transition name="modal">
    <div class="modal-mask" v-show="visible" @click.self="close">
      <!-- 其余内容不变 -->
    </div>
  </transition>
</template>

<style>
.modal-enter-active, .modal-leave-active {
  transition: opacity 0.3s ease;
}

.modal-enter-from, .modal-leave-to {
  opacity: 0;
}

.modal-container {
  transition: transform 0.3s ease;
}

.modal-enter-active .modal-container {
  animation: bounce-in 0.3s;
}

.modal-leave-active .modal-container {
  animation: bounce-in 0.3s reverse;
}

@keyframes bounce-in {
  0% {
    transform: scale(0.95);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
</style>

全局弹窗服务

创建可编程调用的全局弹窗：

// modalService.js
import { createApp, h } from 'vue'

export function showModal(options) {
  const div = document.createElement('div')
  document.body.appendChild(div)

  const app = createApp({
    render() {
      return h(Modal, {
        visible: true,
        onClose: () => {
          app.unmount()
          div.remove()
        },
        ...options
      })
    }
  })

  app.mount(div)
}

使用全局弹窗：

import { showModal } from './modalService'

showModal({
  title: '全局弹窗',
  content: '通过服务调用的弹窗',
  onConfirm() {
    console.log('确认操作')
  }
})

可复用配置选项

扩展弹窗组件支持更多配置：

<script>
export default {
  props: {
    title: String,
    showClose: {
      type: Boolean,
      default: true
    },
    width: {
      type: String,
      default: '50%'
    },
    beforeClose: Function
  },
  methods: {
    close() {
      if (this.beforeClose) {
        this.beforeClose(() => {
          this.doClose()
        })
      } else {
        this.doClose()
      }
    },
    doClose() {
      this.$emit('update:visible', false)
    }
  }
}
</script>