VUE3 基本チュートリアル: Vue.js プラグインを使用して展開コンポーネントと折りたたみコンポーネントをカプセル化する

<template>
  <div>
    <div v-if="showContent">
      <slot></slot>
    </div>
    <div v-else>
      <slot name="less"></slot>
    </div>
    <button v-if="isButtonVisible" @click="toggleContent">
      {{ showContent ? buttonText.less : buttonText.more }}
    </button>
  </div>
</template>

<script>
export default {
  name: 'collapse-transition',
  props: {
    buttonText: {
      type: Object,
      default: () => ({ more: '展开', less: '收起' })
    },
    visible: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      showContent: this.visible,
    }
  },
  methods: {
    toggleContent() {
      this.showContent = !this.showContent;
    }
  },
  computed: {
    isButtonVisible() {
      return this.$slots.less !== undefined;
    }
  }
}
</script>

import CollapseTransition from './CollapseTransition.vue'

const plugin = {
  install(Vue) {
    Vue.component('CollapseTransition', CollapseTransition)
  }
}

export default plugin

export { CollapseTransition }

{
  "name": "vue-collapse-transition-plugin",
  "version": "1.0.0",
  "description": "A Vue.js plugin for creating collapse transitions",
  "main": "dist/index.js",
  "keywords": [
    "Vue.js",
    "plugin",
    "transition",
    "collapse"
  ],
  "dependencies": {
    "vue": "^3.0.0"
  }
}

import resolve from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import babel from '@rollup/plugin-babel'
import { terser } from 'rollup-plugin-terser'

import pkg from './package.json'

export default {
  input: 'index.js',
  output: [
    {
      file: pkg.main,
      format: 'umd',
      name: 'VueCollapseTransition',
      plugins: [terser()]
    },
    {
      file: pkg.module,
      format: 'es'
    }
  ],
  external: ['vue'],
  plugins: [
    resolve(),
    commonjs(),
    babel({ babelHelpers: 'runtime' })
  ]
}

npm install vue-collapse-transition-plugin

import Vue from 'vue'
import App from './App.vue'
import plugin from 'vue-collapse-transition-plugin'

Vue.config.productionTip = false

Vue.use(plugin)

new Vue({
  render: h => h(App),
}).$mount('#app')

<template>
  <CollapseTransition :buttonText="{ more: '展开一下', less: '收起一下' }">
    <template #less>
      更多信息
    </template>
    <div>
      <ul>
        <li v-for="(item, index) in list" :key="index">{{ item }}</li>
      </ul>
    </div>
  </CollapseTransition>
</template>

<script>
import { CollapseTransition } from 'vue-collapse-transition-plugin'

export default {
  name: 'App',
  data() {
    return {
      list: ['item 1', 'item 2', 'item 3', 'item 4', 'item 5']
    }
  },
  components: {
    CollapseTransition
  }
}
</script>