friendica-addons/highlightjs/highlightjs.php
2018-09-19 22:03:15 -04:00

52 lines
1.1 KiB
PHP

<?php
/**
* Name: Syntax Highlighting
* Description: Highlights syntax of code blocks with highlight.js
* Version: 1.0
* Author: Hypolite Petovan <hypolite@mrpetovan.com>
*/
use Friendica\App;
use Friendica\Core\Addon;
function highlightjs_install()
{
Addon::registerHook('page_end', __FILE__, 'highlightjs_page_end');
}
function highlightjs_uninstall()
{
Addon::unregisterHook('page_end', __FILE__, 'highlightjs_page_end');
}
function highlightjs_page_end(App $a, &$b)
{
$basedir = $a->get_baseurl() . '/addon/highlightjs/asset';
if ($a->getCurrentTheme() == 'frio') {
$style = 'bootstrap';
} else {
$style = 'default';
}
$a->page['htmlhead'] .= <<< HTML
<link rel="stylesheet" href="{$basedir}/styles/{$style}.css">
HTML;
$b .= <<< HTML
<script type="text/javascript" src="{$basedir}/highlight.pack.js"></script>
<script type="text/javascript">
hljs.initHighlightingOnLoad();
document.addEventListener('postprocess_liveupdate', function () {
var blocks = document.querySelectorAll('pre code:not(.hljs)');
Array.prototype.forEach.call(blocks, hljs.highlightBlock);
});
</script>
HTML;
}