vue-it-bigger

Vue It Bigger!

A simple image / (YouTube) video lightbox component for Vue 3.

Click on the screenshot above for a demo.

Features

• Unobtrusive interface that disappears after a few seconds, reappears on mouse activity
• Optional thumbnail strip with all of the gallery's media
• Can show an HTML enabled caption under each image or video
• Can play the slideshow automatically
• All of the graphics (previous, next and close buttons) can be customized via slots
• Can skip to next / previous media programatically
• Allows embedding YouTube videos
• Lightbox opens and closes with a short fade
• Media's width is no longer limited (stretches to the full width / height of the window)
• When opening the lightbox the media doesn't flicker
• Moved caption bar and image counter off the media to the bottom of the screen
• Moved thumbnails to the top of the screen (as the bottom is now used by the caption bar)
• All interface elements have a background for better visibility
• Simplified CSS

Installation

You know the drill:

npm install vue-it-bigger

Usage

You can view App.vue or the demo for an usage example.

In the <script> section of your component import it:

import LightBox from 'vue-it-bigger'
import 'vue-it-bigger/dist/vue-it-bigger.css'

Add it to the list of used components:

export default {
  components: {
    LightBox,
  },
}

And use it in the <template> section:

<LightBox :media="media"></LightBox>

The media prop has the following structure:

[
  { // For an image
    type: 'image', // Can be omitted for image
    thumb: 'http://example.com/thumb.jpg',
    src: 'http://example.com/image.jpg',
    caption: 'Caption to display. HTML <b>enabled</b>', // Optional
    srcset: '...' // Optional for displaying responsive images
  },
  { // For a YouTube video
    type: 'youtube',
    thumb: 'https://img.youtube.com/vi/WsptdUFthWI/hqdefault.jpg',
    id: 'WsptdUFthWI',
    caption: 'HTML <b>enabled</b> caption to display' // Optional
  },
  { // For a video that can be played in the <video> tag
    type: 'video',
    thumb: 'https://s3-us-west-1.amazonaws.com/powr/defaults/image-slider2.jpg',
    sources: [
      {
        src: 'https://www.w3schools.com/html/mov_bbb.mp4',
        type: 'video/mp4'
      }
    ],
    caption: '<h4>Monsters Inc.</h4>',
    width: 800, // Required
    height: 600, // Required
    autoplay: true // Optional: Autoplay video when the lightbox opens
  }
]

Options

Properties

Methods

Slots

close

The content of the close button.

footer

The content of the footer under the image.

Slot props

previous

The previous button on the main image.

next

The next button on the main image.

customCaption

The caption of the current image.

Slot props

Usage example:

<LightBox
  ref="customCaptionLightbox"
  :media="media"
  :show-caption="true"
>
  <template v-slot:customCaption="slotProps">
    {{ slotProps.currentMedia.caption }}<br>
    There could be some description here.
  </template>
</LightBox>

imageOverlay

Content rendered on top of the currently displayed image, sized and positioned to match the image box, not the surrounding viewport. Only shows up for image slides; video and YouTube slides skip it. Pointer events are off on the overlay by default so it doesn't block swipe or click navigation — turn them back on for individual elements in the slot if you need something in there to be clickable. Handy for drawing arrows or highlight boxes over a photo.

Slot props

Usage example:

<LightBox
  ref="overlayLightbox"
  :media="media"
>
  <template v-slot:imageOverlay="{ currentMedia }">
    <MyAnnotationsOverlay :annotations="currentMedia.annotations" />
  </template>
</LightBox>

videoIcon

The Icon used for videos

Events

• onOpened: Emit when the lightbox is opened.
• onClosed: Emit when the lightbox is closed.
• onLastIndex: Emit when the current image is the last one of the list.
• onFirstIndex: Emit when the current image is the first one of the list.
• onStartIndex: Emit when the current image is at the startAt index (specified in the properties).
• onLoad: Emit when there are lengthToLoadMore images left in the array (specified in the properties). For example, if lengthToLoadMore = 2 and there are 7 images in your array, when you reach index 4 (which means there are 2 images left which are not discovered yet), this event will be emitted. After that, if the image array are updated and there are totally 15 images, the event will be emitted at index 12.

Development

Clone the repository, cd into it and run:

npm install
npm run dev

The demo app will be available at http://localhost:1805

After you add or modify something make sure the tests still pass:

npm test
npm run lint

To build the library:

npm run build

Release

1. Make sure everything works locally by running npm run dev, npm run build, and npm test
2. Bump the version in package.json
3. Add an entry for the new version in CHANGELOG.md following the Keep a Changelog format
4. Commit and push the changes to master
5. Draft a new release on the releases page
   • Create a tag with the prefix v and the version, eg: v1.0.0
   • Prefix the release title with the tag, eg: v1.0.0 - Vue 3 Migration
6. Publish the release

The publish workflow will automatically validate that the release tag matches the version in package.json and that CHANGELOG.md has an entry for the version, then build and publish to npm.

Credits

• Based on vue-image-lightbox by @pexea12
• Thanks Ana Vidra for helping with the YouTube embed styling
• Original CSS was based on react-images
• Other contributors

License

This project is licensed under the the Apache License, Version 2.0.