Popovers

The bs-component popovers use the bs-tooltip web component. Make sure to set data-toggle="popover" or else you will see some behavior that is more like a tooltip.

Example

Click to toggle popover
<vs-tooltip role="button" class="btn btn-lg btn-danger" data-toggle="popover" title="Popover title" data-content="And here's some amazing content. It's very engaging. Right?">
  Click to toggle popover
</vs-tooltip>

Four Directions

Popover on top Popover on right Popover on bottom Popover on left
<bs-tooltip role="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="top" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on top
</bs-tooltip>

<bs-tooltip role="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on right
</bs-tooltip>

<bs-tooltip role="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="bottom" data-content="Vivamus
sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on bottom
</bs-tooltip>

<bs-tooltip role="button" class="btn btn-secondary" data-container="body" data-toggle="popover" data-placement="left" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on left
</bs-tooltip>

Without bs-tooltip

Without the bs-tooltip tag a popover will not appear

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-animation="".

Name Type Default Description
animation boolean true Apply a CSS fade transition to the popover
container string | element | false false Appends the popover to a specific element. Example: container: 'body'. This option is particularly useful in that it allows you to position the popover in the flow of the document near the triggering element - which will prevent the popover from floating away from the triggering element during a window resize.
content string | element | function '' Default content value if data-content attribute isn't present. If a function is given, it will be called with its this reference set to the element that the popover is attached to.
delay number | object 0 Delay showing and hiding the popover (ms) - does not apply to manual trigger type. If a number is supplied, delay is applied to both hide/show. Object structure is: delay: { "show": 500, "hide": 100 }
html boolean false Allow HTML in the popover. If true, HTML tags in the popovers title will be rendered in the popover. If false, .innerText method will be used to insert content into the DOM. Use text if you're worried about XSS attacks.
placement string | function 'right' How to position the popover - auto | top | bottom | left | right. When auto is specified, it will dynamically reorient the popover. When a function is used to determine the placement, it is called with the popover DOM node as its first argument and the triggering element DOM node as its second. The this context is set to the popover instance.
selector string | false not really needed for web components as web components can be created and destroyed dynamically
template string '<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-header"></h3><div class="popover-body"></div></div>'
title string | element | function '' Default title value if title attribute isn't present. If a function is given, it will be called with its this reference set to the element that the popover is attached to.
trigger string 'click' How popover is triggered - click
offset number | string 0 Offset of the popover relative to its target. For more information refer to Popper.js's offset docs.
fallbackPlacement string | array 'flip' Allow to specify which position Popper will use on fallback. For more information refer to Popper.js's behavior docs
boundary string | element 'scrollParent' Overflow constraint boundary of the popover. Accepts the values of 'viewport', 'window', 'scrollParent', or an HTMLElement reference (JavaScript only). For more information refer to Popper.js's preventOverflow docs.

Attributes

Attribute Type Default Description
show-popover boolean false when set to true the popover will toggle open
disabled boolean false when set to true the popover will be disabled. if disabled is set to true initially then the popover will not start enabled.
bs-title string '' will override any other title settings and use this for the popover title. The value is watched so that it will update dynamically.
bs-content string '' will override any other content settings and use this for the popover content. The value is watched so that it will update dynamically.

Example js how to set an attribute true:

document.querySelector('#my-popover').setAttribute('show-popover', true);

Example HTML with an attribute set to true

<bs-tooltip role="button" class="btn btn-secondary" data-toggle="popover" bs-title="this will change if updated dynamically" bs-content="this auto updates too">
  My popover
</bs-tooltip>

Methods

.popover(options);

Attaches a popover handler to an element collection.

document.querySelector('#my-popover').popover({ content: 'This is a popover with some content' });

.popover('show');

Reveals an element’s popover.

document.querySelector('#my-popover').popover('show');

.popover('hide');

hides an element’s popover.

document.querySelector('#my-popover').popover('hide');

.popover('toggle');

toggles an element’s popover.

document.querySelector('#my-popover').popover('toggle');

.popover('enable');

Gives an element’s popover the ability to be shown.

document.querySelector('#my-popover').popover('enable');

.popover('disable');

Removes the ability for an element’s popover to be shown. The popover will only be able to be shown if it is re-enabled.

document.querySelector('#my-popover').popover('disable');

.popover('toggleEnabled');

Toggles the ability for an element’s popover to be shown or hidden.

document.querySelector('#my-popover').popover('toggleEnabled');

.popover('update');

Updates the position of an element’s popover.

document.querySelector('#my-popover').popover('update');

Events

Event Type Description
show.bs.popover This event fires immediately when the show instance method is called.
shown.bs.popover This event is fired when the popover has been made visible to the user (will wait for CSS transitions, to complete).
hide.bs.popover This event is fired immediately when the hide instance method has been called.
hidden.bs.popover This event is fired when the popover has finished being hidden from the user (will wait for CSS transitions, to complete).
inserted.bs.popover This event is fired after the show.bs.popover event when the popover template has been added to the DOM.
enable.bs.popover triggered when a popover is first enabled. If .defaultPrevented() is used on the event then the popover will not be enabled.
enabled.bs.popover triggered when a popover has finished being enabled.
disable.bs.popover triggered when a popover is first disabled. If .defaultPrevented() is used on the event then the popover will not be disabled.
disabled.bs.popover triggered when a popover has finished being disabled.

Event Renaming Attributes

Attribute Default
show-event-name show.bs.popover
shown-event-name shown.bs.popover
hide-event-name hide.bs.popover
hidden-event-name hidden.bs.popover
inserted-event-name inserted.bs.popover
enable-event-name enable.bs.popover
enabled-event-name enabled.bs.popover
disable-event-name disable.bs.popover
disabled-event-name disabled.bs.popover
<bs-tooltip id="my-popover" inserted-event-name="popover-is-in" role="button" class="btn btn-secondary" data-toggle="popover" title="this is a what ya call a popover">
  Tooltip
</bs-tooltip>
document.getElementById('my-popover').addEventListener('popover-is-in', function(event) {
  console.log('my popover was inserted into the DOM');
});

Virtual DOM example

Note: This example uses Vue but the same thing is possible in React, Angular, and plain JavaScript.

<template>
  <div>
    <div class="row">
      <div class="col-sm-3">
        <bs-tooltip role="button" class="btn btn-secondary" data-toggle="popover"
          v-bind:show-popover="showPopover"
          v-bind:bs-title="bsTitle"
          v-bind:bs-content="bsContent"
          shown-event-name="popover-shown" v-on:popover-shown="() => showPopover = true"
          hidden-event-name="popover-hidden" v-on:popover-hidden="() => showPopover = false"
        >
          popover
        </bs-tooltip>
      </div>
      <div class="col-sm-3">
        <a class="btn btn-link" href="#" role="button" v-on:click.stop.prevent="() => showPopover = !showPopover">
          Click here to manually toggle popover <span v-if="!this.showPopover">Open</span><span v-else>Closed</span>
        </a>
      </div>
    </div>
    <div class="form-group row">
      <label for="popover-title" class="col-sm-3 col-form-label">Popover Title</label>
      <div class="col-sm-9">
        <input v-model="bsTitle" type="text" class="form-control" id="popover-title" aria-describedby="popoverTitle" placeholder="Popover Title">
      </div>
    </div>
    <div class="form-group row">
      <label for="popover-content" class="col-sm-3 col-form-label">Popover Content</label>
      <div class="col-sm-9">
        <input v-model="bsContent" type="text" class="form-control" id="popover-content" aria-describedby="popoverContent" placeholder="Popover Content">
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: 'popover-example',
  data() {
    return {
      showPopover: false,
      bsTitle: 'dynamic title',
      bsContent: 'dynamic content',
    };
  },
}
</script>