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drupalcampbristol/web/modules/contrib/webform/includes/webform.libraries.inc
2018-11-23 12:29:20 +00:00

107 lines
3.2 KiB
PHP

<?php
/**
* @file
* Webform libraries.
*/
/**
* Implements hook_library_info_alter().
*/
function webform_library_info_alter(&$libraries, $extension) {
$webform_libraries_modules = \Drupal::moduleHandler()->getImplementations('webform_libraries_info');
$webform_libraries_modules[] = 'webform';
// Only alter modules that declare webform libraries.
// @see hook_webform_libraries_info()
if (!in_array($extension, $webform_libraries_modules)) {
return;
}
// Prevent duplicate instances of the chosen plugin and use
// the chosen_lib.module's as the dependency.
if (isset($libraries['webform.element.chosen']) && \Drupal::moduleHandler()->moduleExists('chosen_lib')) {
$dependencies =& $libraries['webform.element.chosen']['dependencies'];
foreach ($dependencies as $index => $dependency) {
if ($dependency === 'webform/libraries.jquery.chosen') {
$dependencies[$index] = 'chosen_lib/chosen';
$dependencies[] = 'chosen_lib/chosen.css';
break;
}
}
}
/** @var \Drupal\webform\WebformLibrariesManagerInterface $libraries_manager */
$libraries_manager = \Drupal::service('webform.libraries_manager');
// Map /library/* paths to CDN.
// @see webform.libraries.yml.
foreach ($libraries as $library_name => &$library) {
// Remove excluded libraries.
if ($libraries_manager->isExcluded($library_name)) {
unset($libraries[$library_name]);
continue;
}
if (!empty($library['dependencies'])) {
// Remove excluded libraries from dependencies.
foreach ($library['dependencies'] as $dependency_index => $dependency_name) {
if ($libraries_manager->isExcluded($dependency_name)) {
$library['dependencies'][$dependency_index] = NULL;
$library['dependencies'] = array_filter($library['dependencies']);
}
}
}
// Check CDN setting exists.
if (!isset($library['cdn'])) {
continue;
}
// Check if the CDN's source /library/* path exists.
reset($library['cdn']);
if (file_exists(DRUPAL_ROOT . key($library['cdn']))) {
continue;
}
_webform_library_info_alter_recursive($library, $library['cdn']);
}
}
/**
* Recursive through a webform library.
*
* @param array $library
* A webform library defined in webform.libraries.yml.
* @param array $cdn
* A associative array of library paths mapped to CDN URL.
*/
function _webform_library_info_alter_recursive(array &$library, array $cdn) {
foreach ($library as $key => &$value) {
// CSS and JS files and listed in associative arrays keyed via string.
if (!is_string($key) || !is_array($value)) {
continue;
}
// Ignore the CDN's associative array.
if ($key == 'cdn') {
continue;
}
// Replace the CDN sources (i.e. /library/*) with the CDN URL destination
// (https://cdnjs.cloudflare.com/ajax/libs/*).
foreach ($cdn as $source => $destination) {
if (strpos($key, $source) === 0) {
$uri = str_replace($source, $destination, $key);
$library[$uri] = $value;
$library[$uri]['type'] = 'external';
unset($library[$key]);
break;
}
}
// Recurse downward to find nested libraries.
_webform_library_info_alter_recursive($value, $cdn);
}
}