readme.md

Codepen extension for Kirby 2 (fork of Kirbytext Codepen tag by ClementRoy)

This extension for Kirby 2 enables you to easily embed CodePen ‘Pens’ into your sites pages.

(codepen: http://codepen.io/chriscoyier/pen/oqHlh/)

Kirby 2 allows Kirbytext (Kirbys custom implementation of Mark Down) to be extended with custom ‘Kirbytags’. More about Kirbytags.

Sorry, not backwards compatible with Kirby 1. Kirbytext Codepen tag by ClementRoy is compatible.

Installation

Place codepen.php in your /site/tags/ folder, or create a ‘tags’ folder inside your site folder if one is not there.

Usage

Now in your content text files you can now use the new codepen tag:

(codepen: http://codepen.io/chriscoyier/pen/oqHlh/)

This will embed the specified Pen using a default height and styled with the standard CodePen embed theme.

Parameters

You can supply additional parameters in the tag to override the height (500 = 500px height embed) or type (html, css result displayed).

(codepen: http://codepen.io/chriscoyier/pen/oqHlh/ height: 250 type: html)

You can specify an additional class which will apply to the CodePen iframe.

(codepen: http://codepen.io/chriscoyier/pen/oqHlh/ class: picked-pen)

This should be considered for adding custom styles to specific Pens. To apply a theme to all Pens, see next section.

Default Theme

This is a more advanced option and not essential, CodePen embeds will use the default CodePen theme style by default.

If you are a CodePen user, pen themes enable you to create a theme style for your embedded Pens.

Note: Changing the default theme requires editing codepen.php file directly

To change from the default CodePen theme to your personal embed theme, open site/tags/codepen.php and edit the $theme = ''; value, to your theme (data-theme-id) value.

You can find your Theme ID in the standard embed code from the ‘Share’ option in any Pen. Look for the data-theme-id value.

Note: Amending this value will change the theme of ALL your CodePen embeds using this Kirby extension.

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Update Updated to include new support for CodePen iframe classes see Parameters section or read about the class feature.

codepen.php

<?php

kirbytext::$tags['codepen'] = array(

	'attr' => array(
			'height', 'type', 'class'
		),
		'html' => function($tag) {
			
			$source = $tag->attr('codepen');
			
			if( !preg_match('!codepen.io\/([a-z0-9A-Z_-]+)\/pen\/([a-z0-9_-]+)!i', $source, $array) ) {
				return false;
			}
			
			// Set default Pen height or use 350 default
			$height = $tag->attr('height', '350');
			
			// Accept Pen type overide or use result as default
			$result = $tag->attr('type', 'result');
			
			// Set a class on the CodePen iframe
			$penclass = $tag->attr('class', '');
			
			// Set default theme-id embed theme (About embed themes: http://blog.codepen.io/2013/07/23/the-new-embed-builder-customize-every-aspect/)
			$theme = ""; // Add your theme-id value here. Uses standard CodePen embed theme by default if left blank.
						
			// Builds Pen HTML output
			$html = '<figure class="code-container">';
			$html .= '<pre class="codepen" data-theme-id="'. $theme .'" data-height="'. $height .'" data-type="'. $result .'" data-slug-hash="'. $array[2] .'" data-user="'. $array[1] .'" data-class="'. $penclass .'"><code></code></pre>';
			$html .= '<script async src="http://codepen.io/assets/embed/ei.js"></script></figure>';
		
			return $html;
		
	}

);