protected Registry::postProcessExtension(array &$cache, ActiveTheme $theme)
Completes the theme registry adding discovered functions and hooks.
Parameters
array $cache: The theme registry as documented in \Drupal\Core\Theme\Registry::processExtension().
\Drupal\Core\Theme\ActiveTheme $theme: Current active theme.
See also
::processExtension()
File
- core/lib/Drupal/Core/Theme/Registry.php, line 635
Class
- Registry
- Defines the theme registry service.
Namespace
Drupal\Core\Theme
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | protected function postProcessExtension(array &$cache, ActiveTheme $theme) { $grouped_functions = $this->getPrefixGroupedUserFunctions(); // Gather prefixes. This will be used to limit the found functions to the // expected naming conventions. $prefixes = array_keys((array) $this->moduleHandler->getModuleList()); foreach (array_reverse($theme->getBaseThemes()) as $base) { $prefixes[] = $base->getName(); } if ($theme->getEngine()) { $prefixes[] = $theme->getEngine() . '_engine'; } $prefixes[] = $theme->getName(); // Collect all variable preprocess functions in the correct order. $suggestion_level = []; $matches = []; // Look for functions named according to the pattern and add them if they // have matching hooks in the registry. foreach ($prefixes as $prefix) { // Grep only the functions which are within the prefix group. list($first_prefix, ) = explode('_', $prefix, 2); if (!isset($grouped_functions[$first_prefix])) { continue; } // Add the function and the name of the associated theme hook to the list // of preprocess functions grouped by suggestion specificity if a matching // base hook is found. foreach ($grouped_functions[$first_prefix] as $candidate) { if (preg_match("/^{$prefix}_preprocess_(((?:[^_]++|_(?!_))+)__.*)/", $candidate, $matches)) { if (isset($cache[$matches[2]])) { $level = substr_count($matches[1], '__'); $suggestion_level[$level][$candidate] = $matches[1]; } } } } // Add missing variable preprocessors. This is needed for modules that do // not explicitly register the hook. For example, when a theme contains a // variable preprocess function but it does not implement a template, it // will go missing. This will add the expected function. It also allows // modules or themes to have a variable process function based on a pattern // even if the hook does not exist. ksort($suggestion_level); foreach ($suggestion_level as $level => $item) { foreach ($item as $preprocessor => $hook) { if (isset($cache[$hook]['preprocess functions']) && !in_array($hook, $cache[$hook]['preprocess functions'])) { // Add missing preprocessor to existing hook. $cache[$hook]['preprocess functions'][] = $preprocessor; } elseif (!isset($cache[$hook]) && strpos($hook, '__')) { // Process non-existing hook and register it. // Look for a previously defined hook that is either a less specific // suggestion hook or the base hook. $this->completeSuggestion($hook, $cache); $cache[$hook]['preprocess functions'][] = $preprocessor; } } } // Inherit all base hook variable preprocess functions into suggestion // hooks. This ensures that derivative hooks have a complete set of variable // preprocess functions. foreach ($cache as $hook => $info) { // The 'base hook' is only applied to derivative hooks already registered // from a pattern. This is typically set from // drupal_find_theme_functions() and drupal_find_theme_templates(). if (isset($info['incomplete preprocess functions'])) { $this->completeSuggestion($hook, $cache); unset($cache[$hook]['incomplete preprocess functions']); } // Optimize the registry. if (isset($cache[$hook]['preprocess functions']) && empty($cache[$hook]['preprocess functions'])) { unset($cache[$hook]['preprocess functions']); } // Ensure uniqueness. if (isset($cache[$hook]['preprocess functions'])) { $cache[$hook]['preprocess functions'] = array_unique($cache[$hook]['preprocess functions']); } }} |
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