/ Menu

A nice Vue.js Multi-Level Tree Menu

A nice Vue.js Multi-Level Tree Menu

Vue Tree Menu

A nice Vue.js Multi-Level Tree Menu.

Made with

Html
Css
Vue.js

Author

Béla Varga

Html

<div class="container center" id="app">
  <ul class="cd-accordion-menu">
    <item :model="treeData"></item>
  </ul>
</div>

Css

*, *::after, *::before {
  box-sizing: border-box;
}

body {
  color: #fff;
  background: #949c4e;
  background: linear-gradient(
    115deg,
    rgba(86, 216, 228, 1) 10%,
    rgba(159, 1, 234, 1) 90%
  );
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

html,
body,
.container {
  min-height: 100vh;
}

.center {
  display: flex;
  justify-content: center;
  align-items: center;
}

ol, ul {
	list-style: none;
  padding: 0px;
}

a {
  color: #a0f6aa;
  text-decoration: none;
}

h1 {
  text-align: center;
  width: 90%;
  margin: 2em auto 0;
  color: #507b55;
  font-weight: bold;
}

.cd-accordion-menu {
  width: 90%;
  max-width: 600px;
  margin: 4em auto;
    background: rgba(0, 0, 0, 0.8);
  box-shadow: 0 4px 6px 0 rgba(0, 0, 0, 0.3);
}

.cd-accordion-menu li {
  user-select: none;
}

.cd-accordion-menu li span {
    float: right;
}

.cd-accordion-menu label, .cd-accordion-menu a {
  position: relative;
  display: block;
  padding: 18px 18px 18px 45px;
  box-shadow: inset 0 -1px #000;
  color: #ffffff;
}
.no-touch .cd-accordion-menu label:hover,
.no-touch .cd-accordion-menu a:hover {
  background: #52565d;
}
.cd-accordion-menu label::before,
.cd-accordion-menu label::after,
.cd-accordion-menu a::after {
  /* icons */
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.cd-accordion-menu label {
  cursor: pointer;
}

.cd-accordion-menu label span {
  float: right;
  color: #828282;
}

.cd-accordion-menu li.file > label::before {
content: "\f15b";  
}
.cd-accordion-menu li.folder > label::before {
  content: "\f054";
}

.cd-accordion-menu li.file > label::before {
content: "\f15b";  
}
.cd-accordion-menu li.add > label::before {
  content: "\f067";
}


.cd-accordion-menu label::before {
  /* arrow icon */
  font: normal normal normal 14px/1 FontAwesome;
  left: 18px;
  transform: translateY(-50%);
  transition: transform 0.3s;
}
.cd-accordion-menu label.open::before {
  transform: translateY(-25%) rotate(90deg);
}

.cd-accordion-menu ul label,
.cd-accordion-menu ul a {
  background: #000;
  box-shadow: inset 0 -1px #141617;
  padding-left: 82px;
}
.no-touch .cd-accordion-menu ul label:hover,
.no-touch .cd-accordion-menu ul a:hover {
  background: #3c3f45;
}
.cd-accordion-menu > li:last-of-type > label,
.cd-accordion-menu > li:last-of-type > a,
.cd-accordion-menu > li > ul > li:last-of-type label,
.cd-accordion-menu > li > ul > li:last-of-type a {
  box-shadow: none;
}
.cd-accordion-menu ul label::before {
  left: 36px;
}
.cd-accordion-menu ul label::after,
.cd-accordion-menu ul a::after {
  left: 59px;
}
.cd-accordion-menu ul ul label,
.cd-accordion-menu ul ul a {
  padding-left: 100px;
}
.cd-accordion-menu ul ul label::before {
  left: 54px;
}
.cd-accordion-menu ul ul label::after,
.cd-accordion-menu ul ul a::after {
  left: 77px;
}
.cd-accordion-menu ul ul ul label,
.cd-accordion-menu ul ul ul a {
  padding-left: 118px;
}
.cd-accordion-menu ul ul ul label::before {
  left: 72px;
}
.cd-accordion-menu ul ul ul label::after,
.cd-accordion-menu ul ul ul a::after {
  left: 95px;
}

Javascript

var treeData = {
  name: "Group",
  children: [
    {
      name: "Sub Group",
      children: [{ name: "Item" }, { name: "Item" }]
    },
    { name: "Item" }
  ]
};

Vue.component("item", {
  template: `<li :class="[isFolder ? 'folder' : 'file']">
    <label
      :class="{'open': open}"
      @click="toggle"
      @dblclick="changeType">
      {{ model.name }}
      <span v-if="isFolder">{{ isFolder ? model.children.length : '' }}</span>
    </label>
    <ul v-show="open" v-if="isFolder" :class="{'open': open}">
      <item
        v-for="(model, index) in model.children"
        :key="index"
        :model="model">
      </item>
      <li class="add" @click="addChild"><label>Add New Item</label></li>
    </ul>
  </li>`,
  props: {
    model: Object
  },
  data: function() {
    return {
      open: false
    };
  },
  computed: {
    isFolder: function() {
      return this.model.children && this.model.children.length;
    }
  },
  methods: {
    toggle: function() {
      if (this.isFolder) {
        this.open = !this.open;
      }
    },
    changeType: function() {
      if (!this.isFolder) {
        Vue.set(this.model, "children", []);
        this.addChild();
        this.open = true;
      }
    },
    addChild: function() {
      this.model.children.push({
        name: "New Item"
      });
    }
  }
});

new Vue({
  el: "#app",
  data: {
    treeData: treeData
  }
});

Demo

See the Pen Vue Tree Menu by Béla Varga (@netzzwerg) on CodePen.