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<?php
/**
* @file
* General functions and hook implementations for Hierarchy Manager module.
*/
/**
* Implements hook_library_info_alter().
*/
function hierarchy_manager_library_info_alter(array &$libraries, $module) {
if ('hierarchy_manager' == $module) {
// Use CDN instead of all local missing libraries.
// Fancytree min js.
$cdn_library = _hierarchy_manager_use_cdn($libraries, 'libraries.jquery.fancytree', 'js');
if ($cdn_library) {
$libraries['libraries.jquery.fancytree']['js'] = $cdn_library;
}
// Fancytree drag and drop for html 5 js.
$cdn_library = _hierarchy_manager_use_cdn($libraries, 'libraries.jquery.fancytree.dnd5', 'js');
if ($cdn_library) {
$libraries['libraries.jquery.fancytree.dnd5']['js'] = $cdn_library;
}
// Fancytree win-8 theme.
$cdn_library = _hierarchy_manager_use_cdn($libraries, 'libraries.jquery.fancytree.skin-win8', 'css');
if ($cdn_library) {
$libraries['libraries.jquery.fancytree.skin-win8']['css']['component'] = $cdn_library;
}
// Fancytree win-8 theme.
$cdn_library = _hierarchy_manager_use_cdn($libraries, 'libraries.jquery.fancytree.skin-bootstrap', 'css');
if ($cdn_library) {
$libraries['libraries.jquery.fancytree.skin-bootstrap']['css']['component'] = $cdn_library;
}
}
}
/**
* Replace local library with CDN.
*
* @param array $libraries
* The libraries array.
* @param string $library_name
* The library name.
* @param string $type
* The library type.
* @param bool $replace_local
* Force to replace local libraries with CDN.
*
* @return array
* The new library array (CDN)
*/
function _hierarchy_manager_use_cdn(array $libraries, $library_name, $type, $replace_local = FALSE) {
if (isset($libraries[$library_name])) {
if (isset($libraries[$library_name][$type]) && isset($libraries[$library_name]['cdn'])) {
$library_array = [];
$updated = FALSE;
// CSS library has a sub-array called component.
if ($type === 'css') {
if (isset($libraries[$library_name][$type]['component'])) {
$local_library = $libraries[$library_name][$type]['component'];
}
else {
return FALSE;
}
}
else {
// Local js library.
$local_library = $libraries[$library_name][$type];
}
foreach ($local_library as $key => $value) {
if (!file_exists(DRUPAL_ROOT . $key) || $replace_local) {
// The js file doesn't exist.
// Replace it with remote cdn.
$library_array[$libraries[$library_name]['cdn'] . basename($key)] = $value;
$updated = TRUE;
}
else {
$library_array[$key] = $value;
}
}
}
}
return empty($updated) ? FALSE : $library_array;
}