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- <?php
- /**
- * @file
- * Hooks provided by the Filter module.
- */
- /**
- * @addtogroup hooks
- * @{
- */
- /**
- * Perform alterations on filter definitions.
- *
- * @param array $info
- * Array of information on filters exposed by filter plugins.
- */
- function hook_filter_info_alter(&$info) {
- // Alter the default settings of the URL filter provided by core.
- $info['filter_url']['default_settings'] = [
- 'filter_url_length' => 100,
- ];
- }
- /**
- * 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.
- $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);
- }
- /**
- * Perform actions when a text format has been disabled.
- *
- * @param \Drupal\filter\FilterFormatInterface $format
- * The format object of the format being disabled.
- */
- function hook_filter_format_disable($format) {
- mymodule_cache_rebuild();
- }
- /**
- * @} End of "addtogroup hooks".
- */
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