Popovers

Overview

Things to know when using the popover plugin:

• Popovers rely on the 3rd party library Popper for positioning. You must include popper.min.js before boosted.js or use boosted.bundle.min.js / boosted.bundle.js which contains Popper in order for popovers to work!
• Popovers require the tooltip plugin as a dependency.
• Popovers are opt-in for performance reasons, so you must initialize them yourself.
• Zero-length title and content values will never show a popover.
• Specify container: 'body' to avoid rendering problems in more complex components (like our input groups, button groups, etc).
• Triggering popovers on hidden elements will not work.
• Popovers for .disabled or disabled elements must be triggered on a wrapper element.
• When triggered from anchors that wrap across multiple lines, popovers will be centered between the anchors' overall width. Use .text-nowrap on your <a>s to avoid this behavior.
• Popovers must be hidden before their corresponding elements have been removed from the DOM.
• Popovers can be triggered thanks to an element inside a shadow DOM.

Keep reading to see how popovers work with some examples.

Example: Enable popovers everywhere

One way to initialize all popovers on a page would be to select them by their data-bs-toggle attribute:

var popoverTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="popover"]'))
var popoverList = popoverTriggerList.map(function (popoverTriggerEl) {
  return new boosted.Popover(popoverTriggerEl)
})

Example: Using the container option

When you have some styles on a parent element that interfere with a popover, you’ll want to specify a custom container so that the popover’s HTML appears within that element instead.

var popover = new boosted.Popover(document.querySelector('.example-popover'), {
  container: 'body'
})

Example

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

Four directions

Four options are available: top, right, bottom, and left aligned. Directions are mirrored when using Boosted in RTL.

<button type="button" class="btn btn-secondary" data-bs-container="body" data-bs-toggle="popover" data-bs-placement="top" data-bs-content="Top popover">
  Popover on top
</button>

<button type="button" class="btn btn-secondary" data-bs-container="body" data-bs-toggle="popover" data-bs-placement="right" data-bs-content="Right popover">
  Popover on right
</button>

<button type="button" class="btn btn-secondary" data-bs-container="body" data-bs-toggle="popover" data-bs-placement="bottom" data-bs-content="Bottom popover">
  Popover on bottom
</button>

<button type="button" class="btn btn-secondary" data-bs-container="body" data-bs-toggle="popover" data-bs-placement="left" data-bs-content="Left popover">
  Popover on left
</button>

Dismiss on next click

Use the focus trigger to dismiss popovers on the user’s next click of a different element than the toggle element.

<a tabindex="0" class="btn btn-lg btn-danger" role="button" data-bs-toggle="popover" data-bs-trigger="focus" title="Dismissible popover" data-bs-content="And here's some amazing content. It's very engaging. Right?">Dismissible popover</a>

var popover = new boosted.Popover(document.querySelector('.popover-dismiss'), {
  trigger: 'focus'
})

Disabled elements

Elements with the disabled attribute aren’t interactive, meaning users cannot hover or click them to trigger a popover (or tooltip). As a workaround, you’ll want to trigger the popover from a wrapper <div> or <span>, ideally made keyboard-focusable using tabindex="0".

For disabled popover triggers, you may also prefer data-bs-trigger="hover focus" so that the popover appears as immediate visual feedback to your users as they may not expect to click on a disabled element.

<span class="d-inline-block" tabindex="0" data-bs-toggle="popover" data-bs-trigger="hover focus" data-bs-content="Disabled popover">
  <button class="btn btn-primary" type="button" disabled>Disabled button</button>
</span>

Sass

Variables

$popover-font-size:                 $font-size-sm;
$popover-font-weight:               $font-weight-bold; // Boosted mod
$popover-bg:                        $gray-400;
$popover-max-width:                 17.25rem;
$popover-border-width:              $border-width;
$popover-border-color:              $popover-bg;
$popover-border-radius:             $border-radius-lg;
$popover-inner-border-radius:       subtract($popover-border-radius, $popover-border-width);
$popover-box-shadow:                null;

$popover-header-bg:                 $popover-bg;
$popover-header-color:              $headings-color;
$popover-header-padding-y:          $spacer * .5;
$popover-header-padding-x:          $spacer * .5;

$popover-body-color:                $body-color;
$popover-body-padding-y:            $popover-header-padding-y;
$popover-body-padding-x:            $popover-header-padding-x;

$popover-arrow-width:               $spacer * .5;
$popover-arrow-height:              $popover-arrow-width * .5;
$popover-arrow-color:               $popover-bg;

$popover-arrow-outer-color:         $popover-border-color;

Usage

Enable popovers via JavaScript:

var exampleEl = document.getElementById('example')
var popover = new boosted.Popover(exampleEl, options)

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-bs-, as in data-bs-animation="". Make sure to change the case type of the option name from camelCase to kebab-case when passing the options via data attributes. For example, instead of using data-bs-customClass="beautifier", use data-bs-custom-class="beautifier".

Using function with popperConfig

var popover = new boosted.Popover(element, {
  popperConfig: function (defaultBsPopperConfig) {
    // var newPopperConfig = {...}
    // use defaultBsPopperConfig if needed...
    // return newPopperConfig
  }
})

Methods

show

Reveals an element’s popover. Returns to the caller before the popover has actually been shown (i.e. before the shown.bs.popover event occurs). This is considered a “manual” triggering of the popover. Popovers whose title and content are both zero-length are never displayed.

myPopover.show()

hide

Hides an element’s popover. Returns to the caller before the popover has actually been hidden (i.e. before the hidden.bs.popover event occurs). This is considered a “manual” triggering of the popover.

myPopover.hide()

toggle

Toggles an element’s popover. Returns to the caller before the popover has actually been shown or hidden (i.e. before the shown.bs.popover or hidden.bs.popover event occurs). This is considered a “manual” triggering of the popover.

myPopover.toggle()

dispose

Hides and destroys an element’s popover (Removes stored data on the DOM element). Popovers that use delegation (which are created using the selector option) cannot be individually destroyed on descendant trigger elements.

myPopover.dispose()

enable

Gives an element’s popover the ability to be shown. Popovers are enabled by default.

myPopover.enable()

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.

myPopover.disable()

toggleEnabled

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

myPopover.toggleEnabled()

update

Updates the position of an element’s popover.

myPopover.update()

getInstance

Static method which allows you to get the popover instance associated with a DOM element

var exampleTriggerEl = document.getElementById('example')
var popover = boosted.Popover.getInstance(exampleTriggerEl) // Returns a Boosted popover instance

getOrCreateInstance

Static method which allows you to get the popover instance associated with a DOM element, or create a new one in case it wasn’t initialised

var exampleTriggerEl = document.getElementById('example')
var popover = boosted.Popover.getOrCreateInstance(exampleTriggerEl) // Returns a Boosted popover instance

Events

var myPopoverTrigger = document.getElementById('myPopover')
myPopoverTrigger.addEventListener('hidden.bs.popover', function () {
  // do something...
})