Video/Iframe/Gallery/Inline Content Lightbox Library – Tobii

Tobii is a feature-rich, responsive, accessible, mobile-friendly lightbox library that makes it possible to display any content type (HTML5/Youtube video, iframe content, inline HTML, and even image gallery) in a modal popup.

More Features:

• Image captions.
• Smart navigation controls.
• Item counter.
• Keyboard interactions.
• Image loading indicator.
• Swipe & click outside to close.
• Auto play videos.

Install & Download:

# NPM
$ npm i @midzer/tobii

How to use it:

1. To get started, include the Tobii library’s files on the page.

<link href="dist/css/tobii.css" rel="stylesheet" />
<script src="dist/js/tobii.js"></script>

// OR as a module
import Tobii from './dist/tobii.modern.js';

2. Initialize the Tobii library and we’re ready to go.

const tobii = new Tobii();

3. Make an element to toggle a basic lightbox that loads content from an inline HTML element. Full HTML data attributes:

• data-type: html, iframe, or youtube.
• data-id: Youtube media id.
• data-target: Target for “iframe” and “html” types.
• data-group: Custom group.
• data-width: Container width for iframe or youtube types.
• data-height: Container height for iframe or youtube types.
• data-controls: Whether the video player controls are displayed: 0 do not display and 1 display controls in the player.
• data-allow: Allows to set allow attribute on iframes.
• data-srcset: Allows to have Responsive image or retina images.
• data-zoom: Allows to enable or disable zoom icon. Values: “true” or “false”

<button type="button" data-type="html" data-target="#modal" class="lightbox">
  Toggle
</button>

<div id="modal" class="modal">
  <div class="modal__inner">
    Modal Content Here
  </div>
</div>

4. Embed an iframe into the lightbox.

<button type="button" data-type="iframe" data-height="600" data-width="400" data-target="https://example.jpg" class="lightbox">
  Open Example.com
</button>

5. Embed a Youtube video into the lightbox.

<button type="button" data-type="youtube" data-id="VIDEO ID HERE" data-height="600" data-controls="1" class="lightbox">
  Play Youtube Video
</button>

6. Group your images using the data-group attribute and display them as an inline slider in the lightbox.

<a href="1.jpg" class="lightbox" data-group="gallery">
  <img src="1.jpg" alt="Alt" width="200">
</a>
<a href="2.jpg" class="lightbox" data-group="gallery">
  <img src="2.jpg" alt="Alt" width="200">
</a>
<a href="3.jpg" class="lightbox" data-group="gallery">
  <img src="3.jpg" alt="Alt" width="200">
</a>

7. Config the lightbox with the following options.

var tobii = new Tobii({

    // default selector
    selector: '.lightbox',

    // shows image captions
    captions: true,
    captionsSelector: 'img',
    captionAttribute: 'alt',
    captionText: null, // returns the caption text for the current element
    captionHTML: false, // allows HTML captions.

    // 'auto' = auto hides navigation controls on mobile devices
    nav: 'auto',

    // custom navigation controls
    navText: [
      '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M14 18l-6-6 6-6"/></svg>',
      '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M10 6l6 6-6 6"/></svg>'
    ],
    navLabel: [
      'Previous image',
      'Next image'
    ],

    // shows close button
    close: true,
    closeText: '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M6 6l12 12M6 18L18 6"/></svg>',
    closeLabel: 'Close lightbox',

    // image loading indicator
    loadingIndicatorLabel: 'Image loading',

    // shows image counter
    counter: true,
    
    // enables keyboard interactions
    keyboard: true,

    // shows a zoom image on the images
    zoom: true,
    zoomText: '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M21 16v5h-5"/><path d="M8 21H3v-5"/><path d="M16 3h5v5"/><path d="M3 8V3h5"/></svg>',

    // click/tap outside to close the lightbox
    docClose: true,

    // allows to close the lightbox with swipe event
    swipeClose: true,

    // hides scrollbar when the lightbox is activated
    hideScrollbar: true,

    // enables drag and touch swipe events
    draggable: true,

    // touch and mouse dragging threshold in pixels
    threshold: 100,
    
    // auto plays videos
    autoplayVideo: false,

    // modal mode
    modal: false,

    // theme class
    theme: 'tobii--theme-default'
    
});

8. API methods.

// open a specific item
instance.open(index, callback);

// goto the next item
instance.next(callback);

// back to the prev item
instance.prev(callback);

// close the lightbox
instance.close(callback);

// add a new item to the lightbox
instance.add(element, callback);

// remove an item
instance.remove(element, callback);

// check if is open
instance.isOpen();

// get the current item index
instance.currentSlide();

// select a specific group
instance.selectGroup(value);

// select a slide
instance.select(index);

// return the current slide index
instance.slidesIndex();

// return the current number of slides
instance.slidesCount();

// get the current group
instance.currentGroup();

// reset the lightbox
instance.reset();

// destroy the lightbox
instance.destroy();

9. Events.

instance.on(eventName, listener);
instance.off(eventName, listener);
instance.on('open', function(){
  // do something
})
instance.on('close', function(){
  // do something
})
instance.on('next', function(){
  // do something
})
instance.on('previous', function(){
  // do something
})

Changelog:

v2.8.0 (05/26/2025)

• Toggle caption display on click/touch

v2.7.3 (02/15/2025)

• fix unclickable top region for docClose

v2.7.2 (02/11/2025)

• Bugfixes

v2.7.0/1 (12/19/2024)

• Accessibility improvements
• Sizes attribute to properly handle responsive images
• Programmatically set focus on figure elements on slide change
• Fixed bugs

v2.6.6 (12/17/2024)

• Fixed bugs

v2.6.4 (12/12/2023)

• Fixed bugs

v2.6.0 (11/20/2023)

• Added: Pinch zoom feature for touch devices
• Added: Double click and wheel zoom with mouse/touch clamped pan
• Added: Delayed tap on mobile for prev/next navigation
• Fixed: Not clickable close() region above slider

v2.5.0 (01/17/2023)

• Apply opacity to buttons on :hover
• Change opacity on close button
• Support for audio element
• Introduce captionHTML parameter
• Replace em function
• Bugs fixed

v2.4.0 (06/07/2022)

• tobii.mjs -> tobii.modern.js
• All CSS custom properties are now prefixed with –tobii- to avoid conflicts (e.g. –tobii-base-font-size instead of –base-font-size: 18px).

v2.3.3 (03/16/2022)

• Fix Safari background scrolling issue

v2.3.2 (12/07/2021)

• Bugfix IE11

v2.3.0 (10/25/2021)

• Bugfixes

v2.3.0 (08/31/2021)

• Added close event
• button, background style changes
• Added ability to select HTML links using tab, ability to select text in HTML element
• Added data-zoom attribute
• ignore duplicates
• Split into modules
• proof that images with query parameters works fine
• console error on multiple instances
• lint update: allow for “font-weight: bold;”
• lint update: allow for “color: #aabbcc”
• bump dependencies

v2.2.0 (06/30/2021)

• Vimeo support
• better YouTube iframe support
• close event
• retina images support
• events with data
• styles for inline HTML
• improvements for iframe
• hide iframe until loaded
• bugfixes

v2.1.0 (04/27/2021)

• Rebuild

v0.2.6 (02/22/2021)

• Move to ES6
• Create extra module and UMD builds
• Add captionText config to set a callback for custom caption elements
• Add AVIF support

08/29/2020

• Add theme option/ class, improve small things

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