hook_theme_suggestions_HOOK_alter(array &$suggestions, array $variables)
Alters named suggestions for a specific theme hook.
This hook allows any module or theme to provide alternative theme function or template name suggestions and reorder or remove suggestions provided by hook_theme_suggestions_HOOK() or by earlier invocations of this hook.
HOOK is the least-specific version of the hook being called. For example, if '#theme' => 'node__article' is called, then node_theme_suggestions_node() will be invoked, not node_theme_suggestions_node__article(). The specific hook called (in this case 'node__article') is available in $variables['theme_hook_original'].
@todo Add @code sample.
Parameters
array $suggestions: An array of theme suggestions.
array $variables: An array of variables passed to the theme hook. Note that this hook is invoked before any preprocessing.
See also
hook_theme_suggestions_alter()
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/lib/Drupal/Core/Render/theme.api.php, line 714
- Hooks and documentation related to the theme and render system.
Code
function hook_theme_suggestions_HOOK_alter(array &$suggestions, array $variables) { if (empty($variables['header'])) { $suggestions[] = 'hookname__' . 'no_header'; } }
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