How to implement dialog boxes and modal boxes in Vue?

How to implement dialog boxes and modal boxes in Vue?

With the continuous development and updating of front-end technology, the development of front-end pages has become more and more complex and diverse. Dialog boxes and modal boxes are elements that often appear in front-end pages and can help us achieve more flexible and diverse interactive effects. In Vue, there are many ways to implement dialog boxes and modal boxes. This article will introduce you to several common implementation methods.

1. Use Vue’s own components

Vue.js provides some built-in components, such as transition and transition-group. These components can be used to create dynamic effects. We can use these components To implement dialog boxes and modal boxes. The specific implementation process is as follows:

1. Add the template of the dialog box in HTML:

<transition name="modal">
  <div class="modal-mask" v-if="showModal">
    <div class="modal-wrapper">
      <div class="modal-container">
        <h3>我是标题</h3>
        <div class="modal-body">
            这里是对话框的内容
        </div>
        <div class="modal-footer">
          <button class="modal-default-button" @click="showModal = false">
            关闭
          </button>
        </div>
      </div>
    </div>
  </div>
</transition>

2. Add data attributes and methods to the Vue instance to control the appearance and closing of the dialog box:

data: {
  showModal: false
},
methods: {
  toggleModal: function(){
    this.showModal = !this.showModal;
  }
}

2. Use third-party components

In addition to Vue’s own components, we can also use third-party UI frameworks to implement dialog boxes and modal boxes. This method can reduce our development time and code amount. Commonly used UI frameworks include ElementUI, Vuetify, Bootstrap-Vue, etc. For example, the implementation code for using a dialog box in Element UI is as follows:

1. Add the template of the dialog box in HTML:

<el-dialog :visible.sync="dialogVisible">
  <span slot="title">对话框标题</span>
  <div>这里是对话框的内容</div>
  <div slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary">确 定</el-button>
  </div>
</el-dialog>

2. Add data attributes and methods to the Vue instance to control The appearance and closing of the dialog box:

data() {
  return {
    dialogVisible: false
  }
}

3. Handwriting the components of the dialog box

If we don’t want to use third-party UI components, we can also handwrite the components of the dialog box and modal box, so that we It can be implemented exactly according to your own needs and style. The specific implementation process of the handwriting component is as follows:

1. Create the component of the dialog box:

<template>
  <div class="dialog-mask" v-if="value">
    <div class="dialog">
      <div class="dialog-header">
        <h3>{{title}}</h3>
        <span class="close-btn" @click="close()">X</span>
      </div>
      <div class="dialog-body">
        <slot name="content"></slot>
      </div>
      <div class="dialog-footer">
        <button class="confirm-btn" @click="confirm()">确定</button>
        <button class="cancel-btn" @click="close()">取消</button>
      </div>
    </div>
  </div>
</template>

2. Register the dialog box component in the Vue instance, and define data attributes and methods to control the dialog box The appearance and closing:

Vue.component('dialog-box', {
  props: {
    value: {
      type: Boolean,
      default: false
    },
    title: {
      type: String,
      default: '对话框标题'
    }
  },
  methods: {
    close(){
      this.$emit('input', false);
    },
    confirm(){
      this.$emit('confirm');
      this.$emit('input', false);
    }
  }
})

Finally, when using the dialog component, you can use v-model to bind data in two directions, and change the bound data when the dialog box needs to pop up.

Summary

The above three methods are relatively common methods to implement dialog boxes and modal boxes. Using Vue's own components can reduce the amount of code we use. Using third-party UI frameworks can improve development efficiency and beautify the page style. Handwritten components can be implemented completely according to your own needs and style. In actual development, we need to choose the implementation method that best suits us based on actual needs.

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