function HelpTopicSection::getPlugins

Gets the top level help topic plugins.

Return value

\Drupal\help_topics\HelpTopicPluginInterface[] The top level help topic plugins.

File

core/modules/help_topics/src/Plugin/HelpSection/HelpTopicSection.php, line 169

Class

HelpTopicSection

Provides the help topics list section for the help page.

Namespace

Code

protected function getPlugins() {
    if (!isset($this->topLevelPlugins)) {
        $definitions = $this->pluginManager
            ->getDefinitions();
        // Get all the top level topics and merge their list cache tags.
        foreach ($definitions as $definition) {
            if ($definition['top_level']) {
                $this->topLevelPlugins[$definition['id']] = $this->pluginManager
                    ->createInstance($definition['id']);
            }
        }
        // Sort the top level topics by label and, if the labels match, then by
        // plugin ID.
        usort($this->topLevelPlugins, function (HelpTopicPluginInterface $a, HelpTopicPluginInterface $b) {
            $a_label = (string) $a->getLabel();
            $b_label = (string) $b->getLabel();
            if ($a_label === $b_label) {
                return $a->getPluginId() < $b->getPluginId() ? -1 : 1;
            }
            return strnatcasecmp($a_label, $b_label);
        });
    }
    return $this->topLevelPlugins;
}