78 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			78 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * @file
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 */
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use Drupal\Component\Utility\UrlHelper;
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use Drupal\Core\Language\LanguageInterface;
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/**
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 * Serializes #contextual_links property value array to a string.
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 *
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 * Examples:
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 *  - node:node=1:langcode=en
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 *  - views_ui_edit:view=frontpage:location=page&view_name=frontpage&view_display_id=page_1&langcode=en
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 *  - menu:menu=tools:langcode=en|block:block=olivero.tools:langcode=en
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 *
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 * So, expressed in a pattern:
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 *  <group>:<route parameters>:<metadata>
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 *
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 * The route parameters and options are encoded as query strings.
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 *
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 * @param array $contextual_links
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 *   The $element['#contextual_links'] value for some render element.
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 *
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 * @return string
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 *   A serialized representation of a #contextual_links property value array for
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 *   use in a data- attribute.
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 */
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function _contextual_links_to_id($contextual_links) {
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  $ids = [];
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  $langcode = \Drupal::languageManager()->getCurrentLanguage(LanguageInterface::TYPE_URL)->getId();
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  foreach ($contextual_links as $group => $args) {
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    $route_parameters = UrlHelper::buildQuery($args['route_parameters']);
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    $args += ['metadata' => []];
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    // Add the current URL language to metadata so a different ID will be
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    // computed when URLs vary by language. This allows to store different
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    // language-aware contextual links on the client side.
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    $args['metadata'] += ['langcode' => $langcode];
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    $metadata = UrlHelper::buildQuery($args['metadata']);
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    $ids[] = "{$group}:{$route_parameters}:{$metadata}";
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  }
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  return implode('|', $ids);
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}
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/**
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 * Unserializes the result of _contextual_links_to_id().
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 *
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 * Note that $id is user input. Before calling this method the ID should be
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 * checked against the token stored in the 'data-contextual-token' attribute
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 * which is passed via the 'tokens' request parameter to
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 * \Drupal\contextual\ContextualController::render().
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 *
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 * @param string $id
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 *   A serialized representation of a #contextual_links property value array.
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 *
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 * @return array
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 *   The value for a #contextual_links property.
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 *
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 * @see _contextual_links_to_id()
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 * @see \Drupal\contextual\ContextualController::render()
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 */
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function _contextual_id_to_links($id): array {
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  $contextual_links = [];
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  $contexts = explode('|', $id);
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  foreach ($contexts as $context) {
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    [$group, $route_parameters_raw, $metadata_raw] = explode(':', $context);
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    parse_str($route_parameters_raw, $route_parameters);
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    $metadata = [];
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    parse_str($metadata_raw, $metadata);
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    $contextual_links[$group] = [
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      'route_parameters' => $route_parameters,
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      'metadata' => $metadata,
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    ];
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  }
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  return $contextual_links;
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}
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