<?php
// $Id$
/**
* @file
* Functions for the oEmbed filter
*/
function _oembed_filter_apply($text, $format) {
global $_oembed_default_attributes;
$_oembed_default_attributes = array(
'maxwidth' => intval(variable_get('oembed_maxwidth_' . $format, '')),
'maxheight' => intval(variable_get('oembed_maxheight_' . $format, '')),
);
$text = preg_replace_callback("`(^|<p>|<li>|<br\s*/?>|[ \n\r\t\(])((http://|https://|ftp://|mailto:|smb://|afp://|file://|gopher://|news://|ssl://|sslv2://|sslv3://|tls://|tcp://|udp://)([a-zA-Z0-9@:%_+*~#?&=.,/;-]*[a-zA-Z0-9@:%_+*~#&=/;-]))([.,?!]*?)(?=($|</p>|</li>|<br\s*/?>|[ \n\r\t\)]))`i", '_oembed_preg_parse', $text);
unset($_oembed_default_attributes);
return $text;
}
function _oembed_filter_settings($format) {
$form = array();
$form['oembed'] = array(
'#type' => 'fieldset',
'#title' => t('oEmbed'),
'#collapsible' => TRUE,
);
$form['oembed']['oembed_maxwidth_' . $format] = array(
'#type' => 'textfield',
'#title' => t('Maximum width of embed'),
'#default_value' => variable_get('oembed_maxwidth_' . $format, ''),
'#description' => t('The maximum width of an embed, isn\'t respected by all providers'),
);
$form['oembed']['oembed_maxheight_' . $format] = array(
'#type' => 'textfield',
'#title' => t('Maximum height of embed'),
'#default_value' => variable_get('oembed_maxheight_' . $format, ''),
'#description' => t('The maximum height of an embed, isn\'t respected by all providers'),
);
return $form;
}
function _oembed_preg_parse($match) {
return _oembed_resolve_link($match[2], $match[1], $match[5]);
}
function _oembed_resolve_link($match, $prefix, $suffix) {
$return = '';
$url = decode_entities($match);
$matches = array();
if ($provider = oembedcore_get_provider($url, $matches)) {
$embed = oembedcore_oembed_fetch($provider, $url, $matches);
$return = oembedcore_oembed_html($embed, $url);
}
if (empty($return)) {
$return = l($match, $url, array('absolute' => TRUE));
}
return $prefix . $return . $suffix;
}
