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<?php
/**
* @file
* Hooks provided by the Filter module.
*/
/**
* @addtogroup hooks
* @{
*/
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/**
* Perform alterations on filter definitions.
*
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* @param array $info
* Array of information on filters exposed by filter plugins.
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*/
function hook_filter_info_alter(&$info) {
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// Alter the default settings of the URL filter provided by core.
$info['filter_url']['default_settings'] = array(
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'filter_url_length' => 100,
);
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}
/**
* Alters images with an invalid source.
*
* When the 'Restrict images to this site' filter is enabled, any images that
* are not hosted on the site will be passed through this hook, most commonly to
* replace the invalid image with an error indicator.
*
* @param DOMElement $image
* An IMG node to format, parsed from the filtered text.
*/
function hook_filter_secure_image_alter(&$image) {
// Turn an invalid image into an error indicator.
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$image->setAttribute('src', base_path() . 'core/misc/icons/e32700/error.svg');
$image->setAttribute('alt', t('Image removed.'));
$image->setAttribute('title', t('This image has been removed. For security reasons, only images from the local domain are allowed.'));
// Add a CSS class to aid in styling.
$class = ($image->getAttribute('class') ? trim($image->getAttribute('class')) . ' ' : '');
$class .= 'filter-image-invalid';
$image->setAttribute('class', $class);
}
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/**
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* Perform actions when a text format has been disabled.
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*
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* @param \Drupal\filter\FilterFormatInterface $format
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* The format object of the format being disabled.
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*/
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function hook_filter_format_disable($format) {
mymodule_cache_rebuild();
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}
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/**
* @} End of "addtogroup hooks".
*/