protected function ElementInfoManager::buildInfo in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Render/ElementInfoManager.php \Drupal\Core\Render\ElementInfoManager::buildInfo()
2. 10 core/lib/Drupal/Core/Render/ElementInfoManager.php \Drupal\Core\Render\ElementInfoManager::buildInfo()

Builds up all element information.

Parameters

string $theme_name: The theme name.

Return value

array

1 call to ElementInfoManager::buildInfo()

ElementInfoManager::getInfo in core/lib/Drupal/Core/Render/ElementInfoManager.php

Retrieves the default properties for the defined element type.

File

core/lib/Drupal/Core/Render/ElementInfoManager.php, line 101

Class

ElementInfoManager

Provides a plugin manager for element plugins.

Namespace

Drupal\Core\Render

Code

protected function buildInfo($theme_name) {

  // Get cached definitions.
  $cid = $this
    ->getCid($theme_name);
  if ($cache = $this->cacheBackend
    ->get($cid)) {
    return $cache->data;
  }

  // Otherwise, rebuild and cache.
  $info = [];
  foreach ($this
    ->getDefinitions() as $element_type => $definition) {
    $element = $this
      ->createInstance($element_type);
    $element_info = $element
      ->getInfo();

    // If this is element is to be used exclusively in a form, denote that it
    // will receive input, and assign the value callback.
    if ($element instanceof FormElementInterface) {
      $element_info['#input'] = TRUE;
      $element_info['#value_callback'] = [
        $definition['class'],
        'valueCallback',
      ];
    }
    $info[$element_type] = $element_info;
  }
  foreach ($info as $element_type => $element) {
    $info[$element_type]['#type'] = $element_type;
  }

  // Allow modules to alter the element type defaults.
  $this->moduleHandler
    ->alter('element_info', $info);
  $this->themeManager
    ->alter('element_info', $info);
  $this->cacheBackend
    ->set($cid, $info, Cache::PERMANENT, [
    'element_info_build',
  ]);
  return $info;
}