Grav Shortcode Owl Carousel Plugin
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shortcode-owl-carousel.yaml

README.md

Grav Shortcode Owl Carousel Plugin

About

The Shortcode Owl Carousel plugin makes it trivial to create Owl Carousel based sliders from within your page content. Owl Carousel provides a wide range of features and functionality that are directly accessible via shortcode attributes. Features include:

  • Infinity Loop
  • Center item
  • Smart Speed
  • Stage Padding
  • Item Margin
  • Ability to make almost all options responsive
  • Various Widths
  • Callback Events
  • RTL
  • YouTube/Vimeo/vzaar support (fetching thumbnails as well)
  • Anchors navigation
  • Merged Items
  • and more...

Installation

Typically a plugin should be installed via GPM (Grav Package Manager):

$ bin/gpm install shortcode-grav-carousel

Alternatively it can be installed via the Admin Plugin

Basic Example

This is a basic example that shows off how you can easily turn 3 images into a slider:

[owl-carousel items=1 margin=10 loop=true autoplay=true autoplayHoverPause=true nav=true]
![](image-1.jpg?cropZoom=1024,300)
![](image-2.jpg?cropZoom=1024,300)
![](image-3.jpg?cropZoom=1024,300)
[/owl-carousel]

In this examaple, we are wrapping 3 markdown-syntax images with the [owl-carousel][/owl-carousel] shortcode tag. Then we are adding shortcode attributes to set some Owl Carousel options.

Advanced Example

Every first-level HTML element that gets rendered between the shortcode tags, is treated as a slider item. This can be images, or even HTML div elements that allow for more complex content.

[owl-carousel items=2 margin=10 loop=true]
<div style="background: url({{ page.media['image-1.jpg'].url }}) 50% 50%;background-size: cover;color:#fff;">
  <h2>This is panel 1</h2>
  <p>foo</p>
</div>
<div style="background: url({{ page.media['image-2.jpg'].url }}) 50% 50%;background-size: cover;color:#fff;">
  <h2>This is panel 2</h2>
  <p>foo</p>
</div>
<div style="background: url({{ page.media['image-3.jpg'].url }}) 50% 50%;background-size: cover;color:#fff;">
  <h2>This is panel 3</h2>
  <p>foo</p>
</div>
[/owl-carousel]

In this example, we put HTML div tags between the shortcode tags, and set the number of items to display to 2, the margin between items to 10 and the loop option to true. We make use of Twig processing to dynamically add the URLs to the images that we are setting as the background of the divs. Then inside of the divs, we have some HTML content.

| Note: Markdown is not able to be processed within HTML tags, but you can use Twig if you enable Twig processing in the page frontmatter.

Owl Carousel Options

Options can be passed to Owl Carousel as attributes of the shortcode. Numbers can be passed simply as number=1, booleans can be entered as boolean=true, and strings can be entered between quotes such as string="foo" or string='foo'.

The options available are fully documented on the OWL Carousel site: https://owlcarousel2.github.io/OwlCarousel2/docs/api-options.html, but a summary of the current ones appears below:

items

Type: Number Default: 3

The number of items you want to see on the screen.

margin

Type: Number Default: 0

margin-right(px) on item.

loop

Type: Boolean Default: false

Infinity loop. Duplicate last and first items to get loop illusion.

center

Type: Boolean Default: false

Center item. Works well with even an odd number of items.

mouseDrag

Type: Boolean Default: true

Mouse drag enabled.

touchDrag

Type: Boolean Default: true

Touch drag enabled.

pullDrag

Type: Boolean Default: true

Stage pull to edge.

freeDrag

Type: Boolean Default: false

Item pull to edge.

stagePadding

Type: Number Default: 0

Padding left and right on stage (can see neighbours).

merge

Type: Boolean Default: false

Merge items. Looking for data-merge='{number}' inside item..

mergeFit

Type: Boolean Default: true

Fit merged items if screen is smaller than items value.

autoWidth

Type: Boolean Default: false

Set non grid content. Try using width style on divs.

startPosition

Type: Number/String Default: 0

Start position or URL Hash string like '#id'.

URLhashListener

Type: Boolean Default: false

Listen to url hash changes. data-hash on items is required.

nav

Type: Boolean Default: false

Show next/prev buttons.

rewind

Type: Boolean Default: true

Go backwards when the boundary has reached.

navText

Type: Array Default: [&#x27;next&#x27;,&#x27;prev&#x27;]

HTML allowed.

navElement

Type: String Default: div

DOM element type for a single directional navigation link.

slideBy

Type: Number/String Default: 1

Navigation slide by x. 'page' string can be set to slide by page.

dots

Type: Boolean Default: true

Show dots navigation.

dotsEach

Type: Number/Boolean Default: false

Show dots each x item.

dotData

Type: Boolean Default: false

Used by data-dot content.

lazyLoad

Type: Boolean Default: false

Lazy load images. data-src and data-src-retina for highres. Also load images into background inline style if element is not

lazyContent

Type: Boolean Default: false

lazyContent was introduced during beta tests but i removed it from the final release due to bad implementation. It is a nice options so i will work on it in the nearest feature.

autoplay

Type: Boolean Default: false

Autoplay.

autoplayTimeout

Type: Number Default: 5000

Autoplay interval timeout.

autoplayHoverPause

Type: Boolean Default: false

Pause on mouse hover.

smartSpeed

Type: Number Default: 250

Speed Calculate. More info to come..

fluidSpeed

Type: Boolean Default: Number

Speed Calculate. More info to come..

autoplaySpeed

Type: Number/Boolean Default: false

autoplay speed.

navSpeed

Type: Number/Boolean Default: false

Navigation speed.

dotsSpeed

Type: Boolean Default: Number/Boolean

Pagination speed.

dragEndSpeed

Type: Number/Boolean Default: false

Drag end speed.

callbacks

Type: Boolean Default: true

Enable callback events.

responsive

Type: Object Default: empty object

Object containing responsive options. Can be set to false to remove responsive capabilities.

responsiveRefreshRate

Type: Number Default: 200

Responsive refresh rate.

responsiveBaseElement

Type: DOM element Default: window

Set on any DOM element. If you care about non responsive browser (like ie8) then use it on main wrapper. This will prevent from crazy resizing.

video

Type: Boolean Default: false

Enable fetching YouTube/Vimeo/Vzaar videos.

videoHeight

Type: Number/Boolean Default: false

Set height for videos.

videoWidth

Type: Number/Boolean Default: false

Set width for videos.

animateOut

Type: String/Boolean Default: false

Class for CSS3 animation out.

animateInClass

Type: String/Boolean Default: false

Class for CSS3 animation in.

fallbackEasing

Type: String Default: swing

Easing for CSS2 $.animate.

info

Type: Function Default: false

Callback to retrieve basic information (current item/pages/widths). Info function second parameter is Owl DOM object reference.

nestedItemSelector

Type: String/Class Default: false

Use it if owl items are deep nested inside some generated content. E.g 'youritem'. Don't use dot before class name.

itemElement

Type: String Default: div

DOM element type for owl-item.

stageElement

Type: String Default: div

DOM element type for owl-stage.

navContainer

Type: String/Class/ID/Boolean Default: false

Set your own container for nav.

dotsContainer

Type: String/Class/ID/Boolean Default: false

Set your own container for nav.