This time I will show you how to apply the vue file tree component, and what are the precautions for using the vue file tree component. The following is a practical case, let's take a look.
First is the html template:
<li> <p //文件夹加粗表示 :class="{bold: isFolder}" //处理单击事件 打开闭合文件列表 @click="toggle" //处理双击事件 双击子文件,子文件属性变为文件夹 @dblclick="changeType"> //显示文件名 {{model.name}} //若是文件夹的话则显示[+]来控制文件夹的开关闭合 <span v-if="isFolder">[{{open ? '-' : '+'}}]</span> </p> <ul v-show="open" v-if="isFolder"> //利用v-for显示子文件列表,通过递归使用item组件来完成文件树 <item class="item" v-for="model in model.children" :model="model"> </item> //增加一个+标记,单击可以增加子文件 <li class="add" @click="addChild">+</li> </ul> </li>
Next is the source code of the component part:
Vue.component('item', { template: '#item-template', props: { model: Object //将文件数据通过props传入 }, data: function () { return { open: false //open表示文件夹闭合状态 } }, computed: { isFolder: function () { return this.model.children && this.model.children.length } }, //计算对象是否有子节点并且子节点数大于0来判断是否是文件夹 methods: { toggle: function () { if (this.isFolder) { this.open = !this.open } }, //控制文件夹闭合的方法 单击触发改变open changeType: function () { if (!this.isFolder) { Vue.set(this.model, 'children', []) this.addChild() this.open = true } }, //双击触发,通过给文件增加子节点来使文件属性变成文件夹 addChild: function () { this.model.children.push({ name: 'new stuff' }) //点击文件夹里的+节点触发 为文件夹添加一个新文件 } } })
So the design idea is to determine whether the object has child nodes to determine whether it is a folder or file, and then recursively reuse the
Finally is the data format of the incoming component:
var data = { name: 'My Tree', children: [ { name: 'hello' }, { name: 'wat' }, { name: 'child folder', children: [ { name: 'child folder', children: [ { name: 'hello' }, { name: 'wat' } ] }, { name: 'hello' }, { name: 'wat' }, { name: 'child folder', children: [ { name: 'hello' }, { name: 'wat' } ] } ] } ] }
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
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The above is the detailed content of How to apply vue file tree component. For more information, please follow other related articles on the PHP Chinese website!