Implementing Vue.js Popover for Individual Dropdown Items: A How-To Guide

Question

Implementing Vue.js Popover for Individual Dropdown Items: A How-To Guide

I need unique information text to display for each dropdown item when hovered. I am using bootstrap-vue and have a loop set up for the dropdown items.

<b-dropdown :text="currentColorType">
    <b-dropdown-item v-for="colorType in colorTypes"
    :key="colorType.id"
    :value="colorType.name">{{colorType.name}}</b-dropdown-item>
</b-dropdown>
<b-popover target="id" placement="bottom" triggers="hover blur">
    <div>Unique Information Text Here</div>
</b-popover>

Is there a way to dynamically attach an id as target in the popover? I tried options like:

id="colorType.name"
id="`${colorType.name}`"

but they did not work. I'm also unsure if the popover would even trigger with this setup. Any suggestions on a better approach to show info on hover for dropdown items?

javascript css vue.js bootstrap-vue

Answer 1

Answer №1

If you want to simplify your code, consider using the v-b-popover directive instead of <b-popover>. This way, you can easily connect the popover directly to <b-dropdown-item>.

new Vue({
  el: '#app',
  data() {
    return {
      colorTypes: [{
          id: 1,
          name: 'Blue'
        },
        {
          id: 2,
          name: 'Red'
        },
        {
          id: 3,
          name: 'Green'
        }
      ]
    }
  }
})

<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="294b46465d5a5d5b4859691d071c071b">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2b0bdbda6a1a6a0b3a2ffa4a7b792e0fce3e4fce2">[email protected]</a>/dist/bootstrap-vue.css" rel="stylesheet" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.11/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5d3f3232292e292f3c2d702b28381d6f736c6b736d">[email protected]</a>/dist/bootstrap-vue.js"></script>

<div id="app">
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover="colorType.name">
      {{ colorType.name }}
    </b-dropdown-item>
  </b-dropdown>
</div>

Example with HTML inside the popover

new Vue({
  el: '#app',
  data() {
    return {
      colorTypes: [{
          id: 1,
          color: 'Blue',
          name: '<b class="text-primary">Blue<b>'
        },
        {
          id: 2,
          color: 'Red',
          name: '<b class="text-danger">Red<b>'
        },
        {
          id: 3,
          color: 'Green',
          name: '<b class="text-success">Green<b>'
        }
      ]
    }
  }
})

<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="accec3c3d8dfd8decddcec988299829e">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8defe2e2f9fef9ffecfda0fbf8e8cdbfa3bcbba3bd">[email protected]</a>/dist/bootstrap-vue.css" rel="stylesheet" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.11/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0b6964647f787f796a7b267d7e6e4b39253a3d253b">[email protected]</a>/dist/bootstrap-vue.js"></script>

<div id="app">
  <h5>Using the HTML modifier</h5>
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover.html="colorType.name">
      {{ colorType.color }}
    </b-dropdown-item>
  </b-dropdown>
  <hr />
  <h5>Using an object</h5>
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover="{ content: colorType.name, html: true }">
      {{ colorType.color }}
    </b-dropdown-item>
  </b-dropdown>
</div>

Answer 2

If you want to simplify your code, consider using the v-b-popover directive instead of <b-popover>. This way, you can easily connect the popover directly to <b-dropdown-item>.

new Vue({
  el: '#app',
  data() {
    return {
      colorTypes: [{
          id: 1,
          name: 'Blue'
        },
        {
          id: 2,
          name: 'Red'
        },
        {
          id: 3,
          name: 'Green'
        }
      ]
    }
  }
})

<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="294b46465d5a5d5b4859691d071c071b">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2b0bdbda6a1a6a0b3a2ffa4a7b792e0fce3e4fce2">[email protected]</a>/dist/bootstrap-vue.css" rel="stylesheet" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.11/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5d3f3232292e292f3c2d702b28381d6f736c6b736d">[email protected]</a>/dist/bootstrap-vue.js"></script>

<div id="app">
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover="colorType.name">
      {{ colorType.name }}
    </b-dropdown-item>
  </b-dropdown>
</div>

Example with HTML inside the popover

new Vue({
  el: '#app',
  data() {
    return {
      colorTypes: [{
          id: 1,
          color: 'Blue',
          name: '<b class="text-primary">Blue<b>'
        },
        {
          id: 2,
          color: 'Red',
          name: '<b class="text-danger">Red<b>'
        },
        {
          id: 3,
          color: 'Green',
          name: '<b class="text-success">Green<b>'
        }
      ]
    }
  }
})

<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="accec3c3d8dfd8decddcec988299829e">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8defe2e2f9fef9ffecfda0fbf8e8cdbfa3bcbba3bd">[email protected]</a>/dist/bootstrap-vue.css" rel="stylesheet" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.11/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0b6964647f787f796a7b267d7e6e4b39253a3d253b">[email protected]</a>/dist/bootstrap-vue.js"></script>

<div id="app">
  <h5>Using the HTML modifier</h5>
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover.html="colorType.name">
      {{ colorType.color }}
    </b-dropdown-item>
  </b-dropdown>
  <hr />
  <h5>Using an object</h5>
  <b-dropdown text="Colors">
    <b-dropdown-item v-for="colorType in colorTypes" :key="colorType.id" :value="colorType.name" v-b-popover.hover="{ content: colorType.name, html: true }">
      {{ colorType.color }}
    </b-dropdown-item>
  </b-dropdown>
</div>

Answer 3

Answer №2

To properly connect an element to another, consider binding a specific property to the

id attribute within the <b-dropdown> component.

Additionally, make sure to utilize the v-for directive when working with the <b-popover> as well.

For example:

<b-dropdown :value="selectedItem">
  <b-dropdown-item 
   v-for="item in items"
   :key="item.id"
   :id="item.id"
   :value="item.name"
  >
    {{ item.name }}
  </b-dropdown-item>
</b-dropdown>

<b-popover 
 v-for="(type, index) in types" 
 :key="index" 
 :target="type.id" 
 placement="top" 
 triggers="hover click"
>
  <div>Additional information will go here</div>
</b-popover>

Answer 4

To properly connect an element to another, consider binding a specific property to the

id attribute within the <b-dropdown> component.

Additionally, make sure to utilize the v-for directive when working with the <b-popover> as well.

For example:

<b-dropdown :value="selectedItem">
  <b-dropdown-item 
   v-for="item in items"
   :key="item.id"
   :id="item.id"
   :value="item.name"
  >
    {{ item.name }}
  </b-dropdown-item>
</b-dropdown>

<b-popover 
 v-for="(type, index) in types" 
 :key="index" 
 :target="type.id" 
 placement="top" 
 triggers="hover click"
>
  <div>Additional information will go here</div>
</b-popover>

Implementing Vue.js Popover for Individual Dropdown Items: A How-To Guide

Answer №1

Example with HTML inside the popover

Answer №2

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