2147 lines
78 KiB
PHP
2147 lines
78 KiB
PHP
<?php
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/**
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* @file
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* The theme system, which controls the output of Drupal.
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*
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* The theme system allows for nearly all output of the Drupal system to be
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* customized by user themes.
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*/
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use Drupal\Component\Render\FormattableMarkup;
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use Drupal\Core\Url;
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use Drupal\Component\Serialization\Json;
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use Drupal\Component\Utility\Crypt;
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use Drupal\Component\Utility\Html;
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use Drupal\Component\Render\MarkupInterface;
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use Drupal\Core\Cache\CacheableDependencyInterface;
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use Drupal\Core\Config\Config;
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use Drupal\Core\Config\StorageException;
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use Drupal\Core\Render\AttachmentsInterface;
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use Drupal\Core\Render\BubbleableMetadata;
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use Drupal\Core\Render\RenderableInterface;
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use Drupal\Core\Template\Attribute;
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use Drupal\Core\Template\AttributeHelper;
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use Drupal\Core\Theme\ThemeSettings;
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use Drupal\Core\Render\Element;
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use Drupal\Core\Render\Markup;
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use Drupal\Core\Utility\TableSort;
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/**
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* @defgroup content_flags Content markers
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* @{
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* Markers used by mark.html.twig and node_mark() to designate content.
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*
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* @see mark.html.twig
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* @see node_mark()
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*/
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/**
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* Mark content as read.
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*/
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const MARK_READ = 0;
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/**
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* Mark content as being new.
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*/
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const MARK_NEW = 1;
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/**
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* Mark content as being updated.
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*/
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const MARK_UPDATED = 2;
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/**
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* A responsive table class; hide table cell on narrow devices.
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*
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* Indicates that a column has medium priority and thus can be hidden on narrow
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* width devices and shown on medium+ width devices (i.e. tablets and desktops).
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*/
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const RESPONSIVE_PRIORITY_MEDIUM = 'priority-medium';
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/**
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* A responsive table class; only show table cell on wide devices.
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*
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* Indicates that a column has low priority and thus can be hidden on narrow
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* and medium viewports and shown on wide devices (i.e. desktops).
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*/
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const RESPONSIVE_PRIORITY_LOW = 'priority-low';
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/**
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* @} End of "defgroup content_flags".
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*/
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/**
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* Gets the theme registry.
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*
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* @param bool $complete
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* Optional boolean to indicate whether to return the complete theme registry
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* array or an instance of the Drupal\Core\Utility\ThemeRegistry class.
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* If TRUE, the complete theme registry array will be returned. This is useful
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* if you want to foreach over the whole registry, use array_* functions or
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* inspect it in a debugger. If FALSE, an instance of the
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* Drupal\Core\Utility\ThemeRegistry class will be returned, this provides an
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* ArrayObject which allows it to be accessed with array syntax and isset(),
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* and should be more lightweight than the full registry. Defaults to TRUE.
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*
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* @return
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* The complete theme registry array, or an instance of the
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* Drupal\Core\Utility\ThemeRegistry class.
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*/
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function theme_get_registry($complete = TRUE) {
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$theme_registry = \Drupal::service('theme.registry');
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if ($complete) {
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return $theme_registry->get();
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}
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else {
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return $theme_registry->getRuntime();
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}
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}
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/**
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* Returns an array of default theme features.
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*
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* @see \Drupal\Core\Extension\ThemeExtensionList::$defaults
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*/
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function _system_default_theme_features() {
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return [
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'favicon',
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'logo',
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'node_user_picture',
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'comment_user_picture',
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'comment_user_verification',
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];
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}
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/**
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* Forces the system to rebuild the theme registry.
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*
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* This function should be called when modules are added to the system, or when
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* a dynamic system needs to add more theme hooks.
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*/
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function drupal_theme_rebuild() {
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\Drupal::service('theme.registry')->reset();
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}
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/**
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* Allows themes and/or theme engines to discover overridden theme functions.
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*
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* @internal only exists to support discovery of deprecated theme functions,
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* will be removed in Drupal 10.0.0.
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*
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* @param array $cache
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* The existing cache of theme hooks to test against.
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* @param array $prefixes
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* An array of prefixes to test, in reverse order of importance.
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*
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* @return array
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* The functions found, suitable for returning from hook_theme;
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*/
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function drupal_find_theme_functions($cache, $prefixes) {
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$implementations = [];
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$grouped_functions = \Drupal::service('theme.registry')->getPrefixGroupedUserFunctions($prefixes);
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foreach ($cache as $hook => $info) {
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foreach ($prefixes as $prefix) {
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// Find theme functions that implement possible "suggestion" variants of
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// registered theme hooks and add those as new registered theme hooks.
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// The 'pattern' key defines a common prefix that all suggestions must
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// start with. The default is the name of the hook followed by '__'. A
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// 'base hook' key is added to each entry made for a found suggestion,
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// so that common functionality can be implemented for all suggestions of
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// the same base hook. To keep things simple, deep hierarchy of
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// suggestions is not supported: each suggestion's 'base hook' key
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// refers to a base hook, not to another suggestion, and all suggestions
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// are found using the base hook's pattern, not a pattern from an
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// intermediary suggestion.
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$pattern = $info['pattern'] ?? ($hook . '__');
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// Grep only the functions which are within the prefix group.
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[$first_prefix] = explode('_', $prefix, 2);
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if (!isset($info['base hook']) && !empty($pattern) && isset($grouped_functions[$first_prefix])) {
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$matches = preg_grep('/^' . $prefix . '_' . $pattern . '/', $grouped_functions[$first_prefix]);
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if ($matches) {
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foreach ($matches as $match) {
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$new_hook = substr($match, strlen($prefix) + 1);
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$arg_name = isset($info['variables']) ? 'variables' : 'render element';
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$implementations[$new_hook] = [
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'function' => $match,
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$arg_name => $info[$arg_name],
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'base hook' => $hook,
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];
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}
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}
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}
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// Find theme functions that implement registered theme hooks and include
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// that in what is returned so that the registry knows that the theme has
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// this implementation.
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if (function_exists($prefix . '_' . $hook)) {
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$implementations[$hook] = [
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'function' => $prefix . '_' . $hook,
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];
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}
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}
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}
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return $implementations;
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}
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/**
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* Allows themes and/or theme engines to easily discover overridden templates.
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*
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* @param $cache
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* The existing cache of theme hooks to test against.
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* @param $extension
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* The extension that these templates will have.
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* @param $path
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* The path to search.
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*/
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function drupal_find_theme_templates($cache, $extension, $path) {
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$implementations = [];
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// Collect paths to all sub-themes grouped by base themes. These will be
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// used for filtering. This allows base themes to have sub-themes in its
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// folder hierarchy without affecting the base themes template discovery.
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$theme_paths = [];
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foreach (\Drupal::service('theme_handler')->listInfo() as $theme_info) {
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if (!empty($theme_info->base_theme)) {
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$theme_paths[$theme_info->base_theme][$theme_info->getName()] = $theme_info->getPath();
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}
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}
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foreach ($theme_paths as $basetheme => $subthemes) {
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foreach ($subthemes as $subtheme => $subtheme_path) {
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if (isset($theme_paths[$subtheme])) {
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$theme_paths[$basetheme] = array_merge($theme_paths[$basetheme], $theme_paths[$subtheme]);
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}
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}
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}
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$theme = \Drupal::theme()->getActiveTheme()->getName();
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$subtheme_paths = $theme_paths[$theme] ?? [];
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// Escape the periods in the extension.
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$regex = '/' . str_replace('.', '\.', $extension) . '$/';
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// Get a listing of all template files in the path to search.
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$files = [];
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if (is_dir($path)) {
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$files = \Drupal::service('file_system')->scanDirectory($path, $regex, ['key' => 'filename']);
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}
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// Find templates that implement registered theme hooks and include that in
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// what is returned so that the registry knows that the theme has this
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// implementation.
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foreach ($files as $template => $file) {
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// Ignore sub-theme templates for the current theme.
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if (strpos($file->uri, str_replace($subtheme_paths, '', $file->uri)) !== 0) {
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continue;
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}
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// Remove the extension from the filename.
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$template = str_replace($extension, '', $template);
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// Transform - in filenames to _ to match function naming scheme
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// for the purposes of searching.
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$hook = strtr($template, '-', '_');
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if (isset($cache[$hook])) {
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$implementations[$hook] = [
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'template' => $template,
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'path' => dirname($file->uri),
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];
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}
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// Match templates based on the 'template' filename.
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foreach ($cache as $hook => $info) {
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if (isset($info['template'])) {
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if ($template === $info['template']) {
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$implementations[$hook] = [
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'template' => $template,
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'path' => dirname($file->uri),
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];
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}
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}
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}
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}
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// Find templates that implement possible "suggestion" variants of registered
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// theme hooks and add those as new registered theme hooks. See
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// drupal_find_theme_functions() for more information about suggestions and
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// the use of 'pattern' and 'base hook'.
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$patterns = array_keys($files);
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foreach ($cache as $hook => $info) {
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$pattern = $info['pattern'] ?? ($hook . '__');
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if (!isset($info['base hook']) && !empty($pattern)) {
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// Transform _ in pattern to - to match file naming scheme
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// for the purposes of searching.
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$pattern = strtr($pattern, '_', '-');
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$matches = preg_grep('/^' . $pattern . '/', $patterns);
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if ($matches) {
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foreach ($matches as $match) {
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$file = $match;
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// Remove the extension from the filename.
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$file = str_replace($extension, '', $file);
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// Put the underscores back in for the hook name and register this
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// pattern.
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$arg_name = isset($info['variables']) ? 'variables' : 'render element';
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$implementations[strtr($file, '-', '_')] = [
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'template' => $file,
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'path' => dirname($files[$match]->uri),
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$arg_name => $info[$arg_name],
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'base hook' => $hook,
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];
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}
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}
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}
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}
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return $implementations;
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}
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/**
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* Retrieves a setting for the current theme or for a given theme.
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*
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* The final setting is obtained from the last value found in the following
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* sources:
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* - the saved values from the global theme settings form
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* - the saved values from the theme's settings form
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* To only retrieve the default global theme setting, an empty string should be
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* given for $theme.
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*
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* @param $setting_name
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* The name of the setting to be retrieved.
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* @param $theme
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* The name of a given theme; defaults to the current theme.
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*
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* @return
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* The value of the requested setting, NULL if the setting does not exist.
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*/
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function theme_get_setting($setting_name, $theme = NULL) {
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/** @var \Drupal\Core\Theme\ThemeSettings[] $cache */
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$cache = &drupal_static(__FUNCTION__, []);
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// If no key is given, use the current theme if we can determine it.
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if (!isset($theme)) {
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$theme = \Drupal::theme()->getActiveTheme()->getName();
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}
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if (empty($cache[$theme])) {
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// Create a theme settings object.
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$cache[$theme] = new ThemeSettings($theme);
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// Get the global settings from configuration.
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$cache[$theme]->setData(\Drupal::config('system.theme.global')->get());
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// Get the values for the theme-specific settings from the .info.yml files
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// of the theme and all its base themes.
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$themes = \Drupal::service('theme_handler')->listInfo();
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if (isset($themes[$theme])) {
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$theme_object = $themes[$theme];
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// Retrieve configured theme-specific settings, if any.
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try {
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if ($theme_settings = \Drupal::config($theme . '.settings')->get()) {
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$cache[$theme]->merge($theme_settings);
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}
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}
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catch (StorageException $e) {
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}
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// If the theme does not support a particular feature, override the global
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// setting and set the value to NULL.
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if (!empty($theme_object->info['features'])) {
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foreach (_system_default_theme_features() as $feature) {
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if (!in_array($feature, $theme_object->info['features'])) {
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$cache[$theme]->set('features.' . $feature, NULL);
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}
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}
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}
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/** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
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$file_url_generator = \Drupal::service('file_url_generator');
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// Generate the path to the logo image.
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if ($cache[$theme]->get('logo.use_default')) {
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$logo = \Drupal::service('theme.initialization')->getActiveThemeByName($theme)->getLogo();
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$cache[$theme]->set('logo.url', $file_url_generator->generateString($logo));
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}
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elseif ($logo_path = $cache[$theme]->get('logo.path')) {
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$cache[$theme]->set('logo.url', $file_url_generator->generateString($logo_path));
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}
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// Generate the path to the favicon.
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if ($cache[$theme]->get('features.favicon')) {
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$favicon_path = $cache[$theme]->get('favicon.path');
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if ($cache[$theme]->get('favicon.use_default')) {
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if (file_exists($favicon = $theme_object->getPath() . '/favicon.ico')) {
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$cache[$theme]->set('favicon.url', $file_url_generator->generateString($favicon));
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}
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else {
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$cache[$theme]->set('favicon.url', $file_url_generator->generateString('core/misc/favicon.ico'));
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}
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}
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elseif ($favicon_path) {
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$cache[$theme]->set('favicon.url', $file_url_generator->generateString($favicon_path));
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}
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else {
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$cache[$theme]->set('features.favicon', FALSE);
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}
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}
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}
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}
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return $cache[$theme]->get($setting_name);
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}
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/**
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* Escapes and renders variables for theme functions.
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*
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* This method is used in theme functions to ensure that the result is safe for
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* output inside HTML fragments. This mimics the behavior of the auto-escape
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* functionality in Twig.
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*
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* Note: This function should be kept in sync with
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* \Drupal\Core\Template\TwigExtension::escapeFilter().
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*
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* @param mixed $arg
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* The string, object, or render array to escape if needed.
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*
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* @return string
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* The rendered string, safe for use in HTML. The string is not safe when used
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* as any part of an HTML attribute name or value.
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*
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* @throws \Exception
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* Thrown when an object is passed in which cannot be printed.
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*
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* @see \Drupal\Core\Template\TwigExtension::escapeFilter()
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*
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* @todo Discuss deprecating this in https://www.drupal.org/node/2575081.
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* @todo Refactor this to keep it in sync with Twig filtering in
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* https://www.drupal.org/node/2575065
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*/
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function theme_render_and_autoescape($arg) {
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// If it's a renderable, then it'll be up to the generated render array it
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// returns to contain the necessary cacheability & attachment metadata. If
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// it doesn't implement CacheableDependencyInterface or AttachmentsInterface
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// then there is nothing to do here.
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if (!($arg instanceof RenderableInterface) && ($arg instanceof CacheableDependencyInterface || $arg instanceof AttachmentsInterface)) {
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$arg_bubbleable = [];
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BubbleableMetadata::createFromObject($arg)
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->applyTo($arg_bubbleable);
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\Drupal::service('renderer')->render($arg_bubbleable);
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}
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if ($arg instanceof MarkupInterface) {
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return (string) $arg;
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}
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$return = NULL;
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if (is_scalar($arg)) {
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$return = (string) $arg;
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}
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elseif (is_object($arg)) {
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if ($arg instanceof RenderableInterface) {
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$arg = $arg->toRenderable();
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}
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elseif (method_exists($arg, '__toString')) {
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$return = (string) $arg;
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}
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// You can't throw exceptions in the magic PHP __toString methods, see
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// http://php.net/manual/language.oop5.magic.php#object.tostring so
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// we also support a toString method.
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elseif (method_exists($arg, 'toString')) {
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$return = $arg->toString();
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}
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else {
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throw new \Exception('Object of type ' . get_class($arg) . ' cannot be printed.');
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}
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}
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// We have a string or an object converted to a string: Escape it!
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if (isset($return)) {
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return $return instanceof MarkupInterface ? $return : Html::escape($return);
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}
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// This is a normal render array, which is safe by definition, with special
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// simple cases already handled.
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// Early return if this element was pre-rendered (no need to re-render).
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if (isset($arg['#printed']) && $arg['#printed'] == TRUE && isset($arg['#markup']) && strlen($arg['#markup']) > 0) {
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return (string) $arg['#markup'];
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}
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$arg['#printed'] = FALSE;
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return (string) \Drupal::service('renderer')->render($arg);
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}
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/**
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* Converts theme settings to configuration.
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*
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* @see system_theme_settings_submit()
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*
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* @param array $theme_settings
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* An array of theme settings from system setting form or a Drupal 7 variable.
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* @param \Drupal\Core\Config\Config $config
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* The configuration object to update.
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*
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* @return
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* The Config object with updated data.
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*/
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function theme_settings_convert_to_config(array $theme_settings, Config $config) {
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foreach ($theme_settings as $key => $value) {
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if ($key == 'default_logo') {
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$config->set('logo.use_default', $value);
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}
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elseif ($key == 'logo_path') {
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$config->set('logo.path', $value);
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}
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elseif ($key == 'default_favicon') {
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$config->set('favicon.use_default', $value);
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}
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elseif ($key == 'favicon_path') {
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$config->set('favicon.path', $value);
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}
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elseif ($key == 'favicon_mimetype') {
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$config->set('favicon.mimetype', $value);
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}
|
|
elseif (substr($key, 0, 7) == 'toggle_') {
|
|
$config->set('features.' . mb_substr($key, 7), $value);
|
|
}
|
|
elseif (!in_array($key, ['theme', 'logo_upload'])) {
|
|
$config->set($key, $value);
|
|
}
|
|
}
|
|
return $config;
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for time templates.
|
|
*
|
|
* Default template: time.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array possibly containing:
|
|
* - attributes['timestamp']:
|
|
* - timestamp:
|
|
* - text:
|
|
*/
|
|
function template_preprocess_time(&$variables) {
|
|
/** @var \Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
|
|
$date_formatter = \Drupal::service('date.formatter');
|
|
// Format the 'datetime' attribute based on the timestamp.
|
|
// @see http://www.w3.org/TR/html5-author/the-time-element.html#attr-time-datetime
|
|
if (!isset($variables['attributes']['datetime']) && isset($variables['timestamp'])) {
|
|
$variables['attributes']['datetime'] = $date_formatter->format($variables['timestamp'], 'html_datetime', '', 'UTC');
|
|
}
|
|
|
|
// If no text was provided, try to auto-generate it.
|
|
if (!isset($variables['text'])) {
|
|
// Format and use a human-readable version of the timestamp, if any.
|
|
if (isset($variables['timestamp'])) {
|
|
$variables['text'] = $date_formatter->format($variables['timestamp']);
|
|
}
|
|
// Otherwise, use the literal datetime attribute.
|
|
elseif (isset($variables['attributes']['datetime'])) {
|
|
$variables['text'] = $variables['attributes']['datetime'];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for datetime form element templates.
|
|
*
|
|
* The datetime form element serves as a wrapper around the date element type,
|
|
* which creates a date and a time component for a date.
|
|
*
|
|
* Default template: datetime-form.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: An associative array containing the properties of the element.
|
|
* Properties used: #title, #value, #options, #description, #required,
|
|
* #attributes.
|
|
*
|
|
* @see form_process_datetime()
|
|
*/
|
|
function template_preprocess_datetime_form(&$variables) {
|
|
$element = $variables['element'];
|
|
|
|
$variables['attributes'] = [];
|
|
|
|
if (isset($element['#id'])) {
|
|
$variables['attributes']['id'] = $element['#id'];
|
|
}
|
|
if (!empty($element['#attributes']['class'])) {
|
|
$variables['attributes']['class'] = (array) $element['#attributes']['class'];
|
|
}
|
|
|
|
$variables['content'] = $element;
|
|
|
|
// Add instructional text describing the required date and time formats.
|
|
// This will be hidden on JavaScript-enabled browsers that have a native
|
|
// datepicker.
|
|
if (!empty($element['#date_date_format'])) {
|
|
$placeholder_date = 'YYYY-MM-DD';
|
|
$variables['attributes']['data-drupal-field-elements'] = 'date' . ($element['#date_time_element'] === 'none' ? '' : '-time');
|
|
$date_format = is_array($element['#date_date_format']) ? $element['#date_date_format'][0] : date($element['#date_date_format']);
|
|
$variables['content']['date']['#attributes']['placeholder'] = $placeholder_date;
|
|
$help_date = t('Enter the date using the format @placeholder_date (e.g., @date_format).', ['@date_format' => $date_format, '@placeholder_date' => $placeholder_date]);
|
|
$variables['content']['date']['#attributes']['data-help'] = $help_date;
|
|
|
|
// Include time formatting instructions when a time input is present.
|
|
if (!empty($element['#date_time_format'])) {
|
|
$placeholder_time = 'hh:mm:ss';
|
|
$time_format = is_array($element['#date_time_format']) ? $element['#date_time_format'][0] : date($element['#date_time_format']);
|
|
$variables['content']['time']['#attributes']['placeholder'] = $placeholder_time;
|
|
$help_time = t('Enter the time using the format @placeholder_time (e.g., @time_format).', ['@time_format' => $time_format, '@placeholder_time' => $placeholder_time]);
|
|
$variables['content']['time']['#attributes']['data-help'] = $help_time;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for datetime form wrapper templates.
|
|
*
|
|
* Default template: datetime-wrapper.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: An associative array containing the properties of the element.
|
|
* Properties used: #title, #children, #required, #attributes.
|
|
*/
|
|
function template_preprocess_datetime_wrapper(&$variables) {
|
|
$element = $variables['element'];
|
|
|
|
if (!empty($element['#title'])) {
|
|
$variables['title'] = $element['#title'];
|
|
// If the element title is a string, wrap it a render array so that markup
|
|
// will not be escaped (but XSS-filtered).
|
|
if (is_string($variables['title']) && $variables['title'] !== '') {
|
|
$variables['title'] = ['#markup' => $variables['title']];
|
|
}
|
|
}
|
|
|
|
// Suppress error messages.
|
|
$variables['errors'] = NULL;
|
|
|
|
$variables['description'] = NULL;
|
|
if (!empty($element['#description'])) {
|
|
$description_attributes = [];
|
|
if (!empty($element['#id'])) {
|
|
$description_attributes['id'] = $element['#id'] . '--description';
|
|
}
|
|
$description_attributes['data-drupal-field-elements'] = 'description';
|
|
$variables['description'] = $element['#description'];
|
|
$variables['description_attributes'] = new Attribute($description_attributes);
|
|
}
|
|
|
|
$variables['required'] = FALSE;
|
|
// For required datetime fields 'form-required' & 'js-form-required' classes
|
|
// are appended to the label attributes.
|
|
if (!empty($element['#required'])) {
|
|
$variables['required'] = TRUE;
|
|
}
|
|
$variables['content'] = $element['#children'];
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for links templates.
|
|
*
|
|
* Default template: links.html.twig.
|
|
*
|
|
* Unfortunately links templates duplicate the "active" class handling of l()
|
|
* and LinkGenerator::generate() because it needs to be able to set the "active"
|
|
* class not on the links themselves (<a> tags), but on the list items (<li>
|
|
* tags) that contain the links. This is necessary for CSS to be able to style
|
|
* list items differently when the link is active, since CSS does not yet allow
|
|
* one to style list items only if it contains a certain element with a certain
|
|
* class. I.e. we cannot yet convert this jQuery selector to a CSS selector:
|
|
* jQuery('li:has("a.is-active")')
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - links: An array of links to be themed. Each link itself is an array, with
|
|
* the following elements:
|
|
* - title: The link text.
|
|
* - url: (optional) The \Drupal\Core\Url object to link to. If the 'url'
|
|
* element is supplied, the 'title' and 'url' are used to generate a link
|
|
* through \Drupal::linkGenerator()->generate(). All data from the link
|
|
* array other than 'title' and 'url' are added as #options on
|
|
* the URL object. See \Drupal\Core\Url::fromUri() for details on the
|
|
* options. If no 'url' is supplied, the 'title' is printed as plain text.
|
|
* - attributes: (optional) Attributes for the anchor, or for the <span>
|
|
* tag used in its place if no 'url' is supplied. If element 'class' is
|
|
* included, it must be an array of one or more class names.
|
|
* - attributes: A keyed array of attributes for the <ul> containing the list
|
|
* of links.
|
|
* - set_active_class: (optional) Whether each link should compare the
|
|
* route_name + route_parameters or url (path), language, and query options
|
|
* to the current URL, to determine whether the link is "active". If so,
|
|
* attributes will be added to the HTML elements for both the link and the
|
|
* list item that contains it, which will result in an "is-active" class
|
|
* being added to both. The class is added via JavaScript for authenticated
|
|
* users (in the active-link library), and via PHP for anonymous users (in
|
|
* the \Drupal\Core\EventSubscriber\ActiveLinkResponseFilter class).
|
|
* - heading: (optional) A heading to precede the links. May be an
|
|
* associative array or a string. If it's an array, it can have the
|
|
* following elements:
|
|
* - text: The heading text.
|
|
* - level: The heading level (e.g. 'h2', 'h3').
|
|
* - attributes: (optional) An array of the CSS attributes for the heading.
|
|
* When using a string it will be used as the text of the heading and the
|
|
* level will default to 'h2'. Headings should be used on navigation menus
|
|
* and any list of links that consistently appears on multiple pages. To
|
|
* make the heading invisible use the 'visually-hidden' CSS class. Do not
|
|
* use 'display:none', which removes it from screen readers and assistive
|
|
* technology. Headings allow screen reader and keyboard only users to
|
|
* navigate to or skip the links. See
|
|
* http://juicystudio.com/article/screen-readers-display-none.php and
|
|
* http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
|
|
*
|
|
* @see \Drupal\Core\Utility\LinkGenerator
|
|
* @see \Drupal\Core\Utility\LinkGenerator::generate()
|
|
* @see system_page_attachments()
|
|
*/
|
|
function template_preprocess_links(&$variables) {
|
|
$links = $variables['links'];
|
|
$heading = &$variables['heading'];
|
|
|
|
if (!empty($links)) {
|
|
// Prepend the heading to the list, if any.
|
|
if (!empty($heading)) {
|
|
// Convert a string heading into an array, using a <h2> tag by default.
|
|
if (is_string($heading)) {
|
|
$heading = ['text' => $heading];
|
|
}
|
|
// Merge in default array properties into $heading.
|
|
$heading += [
|
|
'level' => 'h2',
|
|
'attributes' => [],
|
|
];
|
|
// Convert the attributes array into an Attribute object.
|
|
$heading['attributes'] = new Attribute($heading['attributes']);
|
|
}
|
|
|
|
$variables['links'] = [];
|
|
foreach ($links as $key => $link) {
|
|
$item = [];
|
|
$link += [
|
|
'ajax' => NULL,
|
|
'url' => NULL,
|
|
];
|
|
|
|
$li_attributes = [];
|
|
$keys = ['title', 'url'];
|
|
$link_element = [
|
|
'#type' => 'link',
|
|
'#title' => $link['title'],
|
|
'#options' => array_diff_key($link, array_combine($keys, $keys)),
|
|
'#url' => $link['url'],
|
|
'#ajax' => $link['ajax'],
|
|
];
|
|
|
|
// Handle links and ensure that the active class is added on the LIs, but
|
|
// only if the 'set_active_class' option is not empty. Links templates
|
|
// duplicate the "is-active" class handling of l() and
|
|
// LinkGenerator::generate() because they need to be able to set the
|
|
// "is-active" class not on the links themselves (<a> tags), but on the
|
|
// list items (<li> tags) that contain the links. This is necessary for
|
|
// CSS to be able to style list items differently when the link is active,
|
|
// since CSS does not yet allow one to style list items only if they
|
|
// contain a certain element with a certain class. That is, we cannot yet
|
|
// convert this jQuery selector to a CSS selector:
|
|
// jQuery('li:has("a.is-active")')
|
|
if (isset($link['url'])) {
|
|
if (!empty($variables['set_active_class'])) {
|
|
|
|
// Also enable set_active_class for the contained link.
|
|
$link_element['#options']['set_active_class'] = TRUE;
|
|
|
|
if (!empty($link['language'])) {
|
|
$li_attributes['hreflang'] = $link['language']->getId();
|
|
}
|
|
|
|
// Add a "data-drupal-link-query" attribute to let the
|
|
// drupal.active-link library know the query in a standardized manner.
|
|
// Only add the data- attribute. The "is-active" class will be
|
|
// calculated using JavaScript, to prevent breaking the render cache.
|
|
if (!empty($link['query'])) {
|
|
$query = $link['query'];
|
|
ksort($query);
|
|
$li_attributes['data-drupal-link-query'] = Json::encode($query);
|
|
}
|
|
|
|
/** @var \Drupal\Core\Url $url */
|
|
$url = $link['url'];
|
|
if ($url->isRouted()) {
|
|
// Add a "data-drupal-link-system-path" attribute to let the
|
|
// drupal.active-link library know the path in a standardized
|
|
// manner. Only add the data- attribute. The "is-active" class will
|
|
// be calculated using JavaScript, to prevent breaking the render
|
|
// cache.
|
|
$system_path = $url->getInternalPath();
|
|
// @todo System path is deprecated - use the route name and parameters.
|
|
// Special case for the front page.
|
|
$li_attributes['data-drupal-link-system-path'] = $system_path == '' ? '<front>' : $system_path;
|
|
}
|
|
}
|
|
|
|
$item['link'] = $link_element;
|
|
}
|
|
|
|
// Handle title-only text items.
|
|
$item['text'] = $link['title'];
|
|
if (isset($link['attributes'])) {
|
|
$item['text_attributes'] = new Attribute($link['attributes']);
|
|
}
|
|
|
|
// Handle list item attributes.
|
|
$item['attributes'] = new Attribute($li_attributes);
|
|
|
|
// Add the item to the list of links.
|
|
$variables['links'][$key] = $item;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for image templates.
|
|
*
|
|
* Default template: image.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - uri: Either the path of the image file (relative to base_path()) or a
|
|
* full URL.
|
|
* - width: The width of the image (if known).
|
|
* - height: The height of the image (if known).
|
|
* - alt: The alternative text for text-based browsers. HTML 4 and XHTML 1.0
|
|
* always require an alt attribute. The HTML 5 draft allows the alt
|
|
* attribute to be omitted in some cases. Therefore, this variable defaults
|
|
* to an empty string, but can be set to NULL for the attribute to be
|
|
* omitted. Usually, neither omission nor an empty string satisfies
|
|
* accessibility requirements, so it is strongly encouraged for code
|
|
* building variables for image.html.twig templates to pass a meaningful
|
|
* value for this variable.
|
|
* - http://www.w3.org/TR/REC-html40/struct/objects.html#h-13.8
|
|
* - http://www.w3.org/TR/xhtml1/dtds.html
|
|
* - http://dev.w3.org/html5/spec/Overview.html#alt
|
|
* - title: The title text is displayed when the image is hovered in some
|
|
* popular browsers.
|
|
* - attributes: Associative array of attributes to be placed in the img tag.
|
|
* - srcset: Array of multiple URIs and sizes/multipliers.
|
|
* - sizes: The sizes attribute for viewport-based selection of images.
|
|
* - http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content.html#introduction-3:viewport-based-selection-2
|
|
*/
|
|
function template_preprocess_image(&$variables) {
|
|
/** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
|
|
$file_url_generator = \Drupal::service('file_url_generator');
|
|
|
|
if (!empty($variables['uri'])) {
|
|
$variables['attributes']['src'] = $file_url_generator->generateString($variables['uri']);
|
|
}
|
|
// Generate a srcset attribute conforming to the spec at
|
|
// http://www.w3.org/html/wg/drafts/html/master/embedded-content.html#attr-img-srcset
|
|
if (!empty($variables['srcset'])) {
|
|
$srcset = [];
|
|
foreach ($variables['srcset'] as $src) {
|
|
// URI is mandatory.
|
|
$source = $file_url_generator->generateString($src['uri']);
|
|
if (isset($src['width']) && !empty($src['width'])) {
|
|
$source .= ' ' . $src['width'];
|
|
}
|
|
elseif (isset($src['multiplier']) && !empty($src['multiplier'])) {
|
|
$source .= ' ' . $src['multiplier'];
|
|
}
|
|
$srcset[] = $source;
|
|
}
|
|
$variables['attributes']['srcset'] = implode(', ', $srcset);
|
|
}
|
|
|
|
foreach (['width', 'height', 'alt', 'title', 'sizes'] as $key) {
|
|
if (isset($variables[$key])) {
|
|
// If the property has already been defined in the attributes,
|
|
// do not override, including NULL.
|
|
if (AttributeHelper::attributeExists($key, $variables['attributes'])) {
|
|
continue;
|
|
}
|
|
$variables['attributes'][$key] = $variables[$key];
|
|
}
|
|
}
|
|
|
|
// Without dimensions specified, layout shifts can occur,
|
|
// which are more noticeable on pages that take some time to load.
|
|
// As a result, only mark images as lazy load that have dimensions.
|
|
if (isset($variables['width'], $variables['height']) && !isset($variables['attributes']['loading'])) {
|
|
$variables['attributes']['loading'] = 'lazy';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for table templates.
|
|
*
|
|
* Default template: table.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - header: An array containing the table headers. Each element of the array
|
|
* can be either a localized string or an associative array with the
|
|
* following keys:
|
|
* - data: The localized title of the table column, as a string or render
|
|
* array.
|
|
* - field: The database field represented in the table column (required
|
|
* if user is to be able to sort on this column).
|
|
* - sort: A default sort order for this column ("asc" or "desc"). Only
|
|
* one column should be given a default sort order because table sorting
|
|
* only applies to one column at a time.
|
|
* - initial_click_sort: Set the initial sort of the column when clicked.
|
|
* Defaults to "asc".
|
|
* - class: An array of values for the 'class' attribute. In particular,
|
|
* the least important columns that can be hidden on narrow and medium
|
|
* width screens should have a 'priority-low' class, referenced with the
|
|
* RESPONSIVE_PRIORITY_LOW constant. Columns that should be shown on
|
|
* medium+ wide screens should be marked up with a class of
|
|
* 'priority-medium', referenced by with the RESPONSIVE_PRIORITY_MEDIUM
|
|
* constant. Themes may hide columns with one of these two classes on
|
|
* narrow viewports to save horizontal space.
|
|
* - Any HTML attributes, such as "colspan", to apply to the column header
|
|
* cell.
|
|
* - rows: An array of table rows. Every row is an array of cells, or an
|
|
* associative array with the following keys:
|
|
* - data: An array of cells.
|
|
* - Any HTML attributes, such as "class", to apply to the table row.
|
|
* - no_striping: A Boolean indicating that the row should receive no
|
|
* 'even / odd' styling. Defaults to FALSE.
|
|
* Each cell can be either a string or an associative array with the
|
|
* following keys:
|
|
* - data: The string or render array to display in the table cell.
|
|
* - header: Indicates this cell is a header.
|
|
* - Any HTML attributes, such as "colspan", to apply to the table cell.
|
|
* Here's an example for $rows:
|
|
* @code
|
|
* $rows = array(
|
|
* // Simple row
|
|
* array(
|
|
* 'Cell 1', 'Cell 2', 'Cell 3'
|
|
* ),
|
|
* // Row with attributes on the row and some of its cells.
|
|
* array(
|
|
* 'data' => array('Cell 1', array('data' => 'Cell 2', 'colspan' => 2)), 'class' => array('funky')
|
|
* ),
|
|
* );
|
|
* @endcode
|
|
* - footer: An array of table rows which will be printed within a <tfoot>
|
|
* tag, in the same format as the rows element (see above).
|
|
* - attributes: An array of HTML attributes to apply to the table tag.
|
|
* - caption: A localized string to use for the <caption> tag.
|
|
* - colgroups: An array of column groups. Each element of the array can be
|
|
* either:
|
|
* - An array of columns, each of which is an associative array of HTML
|
|
* attributes applied to the <col> element.
|
|
* - An array of attributes applied to the <colgroup> element, which must
|
|
* include a "data" attribute. To add attributes to <col> elements,
|
|
* set the "data" attribute with an array of columns, each of which is an
|
|
* associative array of HTML attributes.
|
|
* Here's an example for $colgroup:
|
|
* @code
|
|
* $colgroup = array(
|
|
* // <colgroup> with one <col> element.
|
|
* array(
|
|
* array(
|
|
* 'class' => array('funky'), // Attribute for the <col> element.
|
|
* ),
|
|
* ),
|
|
* // <colgroup> with attributes and inner <col> elements.
|
|
* array(
|
|
* 'data' => array(
|
|
* array(
|
|
* 'class' => array('funky'), // Attribute for the <col> element.
|
|
* ),
|
|
* ),
|
|
* 'class' => array('jazzy'), // Attribute for the <colgroup> element.
|
|
* ),
|
|
* );
|
|
* @endcode
|
|
* These optional tags are used to group and set properties on columns
|
|
* within a table. For example, one may easily group three columns and
|
|
* apply same background style to all.
|
|
* - sticky: Use a "sticky" table header.
|
|
* - empty: The message to display in an extra row if table does not have any
|
|
* rows.
|
|
*/
|
|
function template_preprocess_table(&$variables) {
|
|
// Format the table columns:
|
|
if (!empty($variables['colgroups'])) {
|
|
foreach ($variables['colgroups'] as &$colgroup) {
|
|
// Check if we're dealing with a simple or complex column
|
|
if (isset($colgroup['data'])) {
|
|
$cols = $colgroup['data'];
|
|
unset($colgroup['data']);
|
|
$colgroup_attributes = $colgroup;
|
|
}
|
|
else {
|
|
$cols = $colgroup;
|
|
$colgroup_attributes = [];
|
|
}
|
|
$colgroup = [];
|
|
$colgroup['attributes'] = new Attribute($colgroup_attributes);
|
|
$colgroup['cols'] = [];
|
|
|
|
// Build columns.
|
|
if (is_array($cols) && !empty($cols)) {
|
|
foreach ($cols as $col_key => $col) {
|
|
$colgroup['cols'][$col_key]['attributes'] = new Attribute($col);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Build an associative array of responsive classes keyed by column.
|
|
$responsive_classes = [];
|
|
|
|
// Format the table header:
|
|
$ts = [];
|
|
$header_columns = 0;
|
|
if (!empty($variables['header'])) {
|
|
$ts = TableSort::getContextFromRequest($variables['header'], \Drupal::request());
|
|
|
|
// Use a separate index with responsive classes as headers
|
|
// may be associative.
|
|
$responsive_index = -1;
|
|
foreach ($variables['header'] as $col_key => $cell) {
|
|
// Increase the responsive index.
|
|
$responsive_index++;
|
|
|
|
if (!is_array($cell)) {
|
|
$header_columns++;
|
|
$cell_content = $cell;
|
|
$cell_attributes = new Attribute();
|
|
$is_header = TRUE;
|
|
}
|
|
else {
|
|
if (isset($cell['colspan'])) {
|
|
$header_columns += $cell['colspan'];
|
|
}
|
|
else {
|
|
$header_columns++;
|
|
}
|
|
$cell_content = '';
|
|
if (isset($cell['data'])) {
|
|
$cell_content = $cell['data'];
|
|
unset($cell['data']);
|
|
}
|
|
// Flag the cell as a header or not and remove the flag.
|
|
$is_header = $cell['header'] ?? TRUE;
|
|
unset($cell['header']);
|
|
|
|
// Track responsive classes for each column as needed. Only the header
|
|
// cells for a column are marked up with the responsive classes by a
|
|
// module developer or themer. The responsive classes on the header cells
|
|
// must be transferred to the content cells.
|
|
if (!empty($cell['class']) && is_array($cell['class'])) {
|
|
if (in_array(RESPONSIVE_PRIORITY_MEDIUM, $cell['class'])) {
|
|
$responsive_classes[$responsive_index] = RESPONSIVE_PRIORITY_MEDIUM;
|
|
}
|
|
elseif (in_array(RESPONSIVE_PRIORITY_LOW, $cell['class'])) {
|
|
$responsive_classes[$responsive_index] = RESPONSIVE_PRIORITY_LOW;
|
|
}
|
|
}
|
|
|
|
TableSort::header($cell_content, $cell, $variables['header'], $ts);
|
|
|
|
// TableSort::header() removes the 'sort', 'initial_click_sort' and
|
|
// 'field' keys.
|
|
$cell_attributes = new Attribute($cell);
|
|
}
|
|
$variables['header'][$col_key] = [];
|
|
$variables['header'][$col_key]['tag'] = $is_header ? 'th' : 'td';
|
|
$variables['header'][$col_key]['attributes'] = $cell_attributes;
|
|
$variables['header'][$col_key]['content'] = $cell_content;
|
|
}
|
|
}
|
|
$variables['header_columns'] = $header_columns;
|
|
|
|
// Rows and footer have the same structure.
|
|
$sections = ['rows' , 'footer'];
|
|
foreach ($sections as $section) {
|
|
if (!empty($variables[$section])) {
|
|
foreach ($variables[$section] as $row_key => $row) {
|
|
$cells = $row;
|
|
$row_attributes = [];
|
|
|
|
// Check if we're dealing with a simple or complex row
|
|
if (isset($row['data'])) {
|
|
$cells = $row['data'];
|
|
$variables['no_striping'] = $row['no_striping'] ?? FALSE;
|
|
|
|
// Set the attributes array and exclude 'data' and 'no_striping'.
|
|
$row_attributes = $row;
|
|
unset($row_attributes['data']);
|
|
unset($row_attributes['no_striping']);
|
|
}
|
|
|
|
// Build row.
|
|
$variables[$section][$row_key] = [];
|
|
$variables[$section][$row_key]['attributes'] = new Attribute($row_attributes);
|
|
$variables[$section][$row_key]['cells'] = [];
|
|
if (!empty($cells)) {
|
|
// Reset the responsive index.
|
|
$responsive_index = -1;
|
|
foreach ($cells as $col_key => $cell) {
|
|
// Increase the responsive index.
|
|
$responsive_index++;
|
|
|
|
if (!is_array($cell)) {
|
|
$cell_content = $cell;
|
|
$cell_attributes = [];
|
|
$is_header = FALSE;
|
|
}
|
|
else {
|
|
$cell_content = '';
|
|
if (isset($cell['data'])) {
|
|
$cell_content = $cell['data'];
|
|
unset($cell['data']);
|
|
}
|
|
|
|
// Flag the cell as a header or not and remove the flag.
|
|
$is_header = !empty($cell['header']);
|
|
unset($cell['header']);
|
|
|
|
$cell_attributes = $cell;
|
|
}
|
|
// Active table sort information.
|
|
if (isset($variables['header'][$col_key]['data']) && $variables['header'][$col_key]['data'] == $ts['name'] && !empty($variables['header'][$col_key]['field'])) {
|
|
$variables[$section][$row_key]['cells'][$col_key]['active_table_sort'] = TRUE;
|
|
}
|
|
// Copy RESPONSIVE_PRIORITY_LOW/RESPONSIVE_PRIORITY_MEDIUM
|
|
// class from header to cell as needed.
|
|
if (isset($responsive_classes[$responsive_index])) {
|
|
$cell_attributes['class'][] = $responsive_classes[$responsive_index];
|
|
}
|
|
$variables[$section][$row_key]['cells'][$col_key]['tag'] = $is_header ? 'th' : 'td';
|
|
$variables[$section][$row_key]['cells'][$col_key]['attributes'] = new Attribute($cell_attributes);
|
|
$variables[$section][$row_key]['cells'][$col_key]['content'] = $cell_content;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (empty($variables['no_striping'])) {
|
|
$variables['attributes']['data-striping'] = 1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for item list templates.
|
|
*
|
|
* Default template: item-list.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - items: An array of items to be displayed in the list. Each item can be
|
|
* either a string or a render array. If #type, #theme, or #markup
|
|
* properties are not specified for child render arrays, they will be
|
|
* inherited from the parent list, allowing callers to specify larger
|
|
* nested lists without having to explicitly specify and repeat the
|
|
* render properties for all nested child lists.
|
|
* - title: A title to be prepended to the list.
|
|
* - list_type: The type of list to return (e.g. "ul", "ol").
|
|
* - wrapper_attributes: HTML attributes to be applied to the list wrapper.
|
|
*
|
|
* @see https://www.drupal.org/node/1842756
|
|
*/
|
|
function template_preprocess_item_list(&$variables) {
|
|
$variables['wrapper_attributes'] = new Attribute($variables['wrapper_attributes']);
|
|
foreach ($variables['items'] as &$item) {
|
|
$attributes = [];
|
|
// If the item value is an array, then it is a render array.
|
|
if (is_array($item)) {
|
|
// List items support attributes via the '#wrapper_attributes' property.
|
|
if (isset($item['#wrapper_attributes'])) {
|
|
$attributes = $item['#wrapper_attributes'];
|
|
}
|
|
// Determine whether there are any child elements in the item that are not
|
|
// fully-specified render arrays. If there are any, then the child
|
|
// elements present nested lists and we automatically inherit the render
|
|
// array properties of the current list to them.
|
|
foreach (Element::children($item) as $key) {
|
|
$child = &$item[$key];
|
|
// If this child element does not specify how it can be rendered, then
|
|
// we need to inherit the render properties of the current list.
|
|
if (!isset($child['#type']) && !isset($child['#theme']) && !isset($child['#markup'])) {
|
|
// Since item-list.html.twig supports both strings and render arrays
|
|
// as items, the items of the nested list may have been specified as
|
|
// the child elements of the nested list, instead of #items. For
|
|
// convenience, we automatically move them into #items.
|
|
if (!isset($child['#items'])) {
|
|
// This is the same condition as in
|
|
// \Drupal\Core\Render\Element::children(), which cannot be used
|
|
// here, since it triggers an error on string values.
|
|
foreach ($child as $child_key => $child_value) {
|
|
if (is_int($child_key) || $child_key === '' || $child_key[0] !== '#') {
|
|
$child['#items'][$child_key] = $child_value;
|
|
unset($child[$child_key]);
|
|
}
|
|
}
|
|
}
|
|
// Lastly, inherit the original theme variables of the current list.
|
|
$child['#theme'] = $variables['theme_hook_original'];
|
|
$child['#list_type'] = $variables['list_type'];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set the item's value and attributes for the template.
|
|
$item = [
|
|
'value' => $item,
|
|
'attributes' => new Attribute($attributes),
|
|
];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for container templates.
|
|
*
|
|
* Default template: container.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: An associative array containing the properties of the element.
|
|
* Properties used: #id, #attributes, #children.
|
|
*/
|
|
function template_preprocess_container(&$variables) {
|
|
$variables['has_parent'] = FALSE;
|
|
$element = $variables['element'];
|
|
// Ensure #attributes is set.
|
|
$element += ['#attributes' => []];
|
|
|
|
// Special handling for form elements.
|
|
if (isset($element['#array_parents'])) {
|
|
// Assign an html ID.
|
|
if (!isset($element['#attributes']['id'])) {
|
|
$element['#attributes']['id'] = $element['#id'];
|
|
}
|
|
$variables['has_parent'] = TRUE;
|
|
}
|
|
|
|
$variables['children'] = $element['#children'];
|
|
$variables['attributes'] = $element['#attributes'];
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for maintenance task list templates.
|
|
*
|
|
* Default template: maintenance-task-list.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - items: An associative array of maintenance tasks.
|
|
* It's the caller's responsibility to ensure this array's items contain no
|
|
* dangerous HTML such as <script> tags.
|
|
* - active: The key for the currently active maintenance task.
|
|
*/
|
|
function template_preprocess_maintenance_task_list(&$variables) {
|
|
$items = $variables['items'];
|
|
$active = $variables['active'];
|
|
|
|
$done = isset($items[$active]) || $active == NULL;
|
|
foreach ($items as $k => $item) {
|
|
$variables['tasks'][$k]['item'] = $item;
|
|
$variables['tasks'][$k]['attributes'] = new Attribute();
|
|
if ($active == $k) {
|
|
$variables['tasks'][$k]['attributes']->addClass('is-active');
|
|
$variables['tasks'][$k]['status'] = t('active');
|
|
$done = FALSE;
|
|
}
|
|
else {
|
|
if ($done) {
|
|
$variables['tasks'][$k]['attributes']->addClass('done');
|
|
$variables['tasks'][$k]['status'] = t('done');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a default set of helper variables for preprocessors and templates.
|
|
*
|
|
* This function is called for every theme hook. It is the first in the
|
|
* sequence of preprocessing functions called when preparing variables for a
|
|
* template.
|
|
*
|
|
* See the @link themeable Default theme implementations topic @endlink for
|
|
* details.
|
|
*/
|
|
function template_preprocess(&$variables, $hook, $info) {
|
|
// Merge in variables that don't depend on hook and don't change during a
|
|
// single page request.
|
|
// Use the advanced drupal_static() pattern, since this is called very often.
|
|
static $drupal_static_fast;
|
|
if (!isset($drupal_static_fast)) {
|
|
$drupal_static_fast['default_variables'] = &drupal_static(__FUNCTION__);
|
|
}
|
|
$default_variables = &$drupal_static_fast['default_variables'];
|
|
if (!isset($default_variables)) {
|
|
$default_variables = _template_preprocess_default_variables();
|
|
}
|
|
$variables += $default_variables;
|
|
|
|
// When theming a render element, merge its #attributes into
|
|
// $variables['attributes'].
|
|
if (isset($info['render element'])) {
|
|
$key = $info['render element'];
|
|
if (isset($variables[$key]['#attributes'])) {
|
|
$variables['attributes'] = AttributeHelper::mergeCollections($variables['attributes'], $variables[$key]['#attributes']);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns hook-independent variables to template_preprocess().
|
|
*/
|
|
function _template_preprocess_default_variables() {
|
|
// Variables that don't depend on a database connection.
|
|
$variables = [
|
|
'attributes' => [],
|
|
'title_attributes' => [],
|
|
'content_attributes' => [],
|
|
'title_prefix' => [],
|
|
'title_suffix' => [],
|
|
'db_is_active' => !defined('MAINTENANCE_MODE'),
|
|
'is_admin' => FALSE,
|
|
'logged_in' => FALSE,
|
|
];
|
|
|
|
// Give modules a chance to alter the default template variables.
|
|
\Drupal::moduleHandler()->alter('template_preprocess_default_variables', $variables);
|
|
|
|
// Tell all templates where they are located.
|
|
$variables['directory'] = \Drupal::theme()->getActiveTheme()->getPath();
|
|
|
|
return $variables;
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for HTML document templates.
|
|
*
|
|
* Default template: html.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - page: A render element representing the page.
|
|
*/
|
|
function template_preprocess_html(&$variables) {
|
|
$variables['page'] = $variables['html']['page'];
|
|
unset($variables['html']['page']);
|
|
$variables['page_top'] = NULL;
|
|
if (isset($variables['html']['page_top'])) {
|
|
$variables['page_top'] = $variables['html']['page_top'];
|
|
unset($variables['html']['page_top']);
|
|
}
|
|
$variables['page_bottom'] = NULL;
|
|
if (isset($variables['html']['page_bottom'])) {
|
|
$variables['page_bottom'] = $variables['html']['page_bottom'];
|
|
unset($variables['html']['page_bottom']);
|
|
}
|
|
|
|
$variables['html_attributes'] = new Attribute();
|
|
|
|
// <html> element attributes.
|
|
$language_interface = \Drupal::languageManager()->getCurrentLanguage();
|
|
$variables['html_attributes']['lang'] = $language_interface->getId();
|
|
$variables['html_attributes']['dir'] = $language_interface->getDirection();
|
|
|
|
if (isset($variables['db_is_active']) && !$variables['db_is_active']) {
|
|
$variables['db_offline'] = TRUE;
|
|
}
|
|
|
|
// Add a variable for the root path. This can be used to create a class and
|
|
// theme the page depending on the current path (e.g. node, admin, user) as
|
|
// well as more specific data like path-frontpage.
|
|
$is_front_page = \Drupal::service('path.matcher')->isFrontPage();
|
|
|
|
if ($is_front_page) {
|
|
$variables['root_path'] = FALSE;
|
|
}
|
|
else {
|
|
$system_path = \Drupal::service('path.current')->getPath();
|
|
$variables['root_path'] = explode('/', $system_path)[1];
|
|
}
|
|
|
|
$site_config = \Drupal::config('system.site');
|
|
// Construct page title.
|
|
if (isset($variables['page']['#title']) && is_array($variables['page']['#title'])) {
|
|
// Do an early render if the title is a render array.
|
|
$variables['page']['#title'] = (string) \Drupal::service('renderer')->render($variables['page']['#title']);
|
|
}
|
|
if (!empty($variables['page']['#title'])) {
|
|
$head_title = [
|
|
// Marking the title as safe since it has had the tags stripped.
|
|
'title' => Markup::create(trim(strip_tags($variables['page']['#title']))),
|
|
'name' => $site_config->get('name'),
|
|
];
|
|
}
|
|
// @todo Remove once views is not bypassing the view subscriber anymore.
|
|
// @see https://www.drupal.org/node/2068471
|
|
elseif ($is_front_page) {
|
|
$head_title = [
|
|
'title' => t('Home'),
|
|
'name' => $site_config->get('name'),
|
|
];
|
|
}
|
|
else {
|
|
$head_title = ['name' => $site_config->get('name')];
|
|
if ($site_config->get('slogan')) {
|
|
$head_title['slogan'] = strip_tags($site_config->get('slogan'));
|
|
}
|
|
}
|
|
|
|
$variables['head_title'] = $head_title;
|
|
|
|
// Create placeholder strings for these keys.
|
|
// @see \Drupal\Core\Render\HtmlResponseSubscriber
|
|
$types = [
|
|
'styles' => 'css',
|
|
'scripts' => 'js',
|
|
'scripts_bottom' => 'js-bottom',
|
|
'head' => 'head',
|
|
];
|
|
$variables['placeholder_token'] = Crypt::randomBytesBase64(55);
|
|
foreach ($types as $type => $placeholder_name) {
|
|
$placeholder = '<' . $placeholder_name . '-placeholder token="' . $variables['placeholder_token'] . '">';
|
|
$variables['#attached']['html_response_attachment_placeholders'][$type] = $placeholder;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for the page template.
|
|
*
|
|
* Default template: page.html.twig.
|
|
*
|
|
* See the page.html.twig template for the list of variables.
|
|
*/
|
|
function template_preprocess_page(&$variables) {
|
|
$language_interface = \Drupal::languageManager()->getCurrentLanguage();
|
|
|
|
foreach (\Drupal::theme()->getActiveTheme()->getRegions() as $region) {
|
|
if (!isset($variables['page'][$region])) {
|
|
$variables['page'][$region] = [];
|
|
}
|
|
}
|
|
|
|
$variables['base_path'] = base_path();
|
|
$variables['front_page'] = Url::fromRoute('<front>')->toString();
|
|
$variables['language'] = $language_interface;
|
|
|
|
// An exception might be thrown.
|
|
try {
|
|
$variables['is_front'] = \Drupal::service('path.matcher')->isFrontPage();
|
|
}
|
|
catch (Exception $e) {
|
|
// If the database is not yet available, set default values for these
|
|
// variables.
|
|
$variables['is_front'] = FALSE;
|
|
$variables['db_is_active'] = FALSE;
|
|
}
|
|
|
|
if ($node = \Drupal::routeMatch()->getParameter('node')) {
|
|
$variables['node'] = $node;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate an array of suggestions from path arguments.
|
|
*
|
|
* This is typically called for adding to the suggestions in
|
|
* hook_theme_suggestions_HOOK_alter() or adding to 'attributes' class key
|
|
* variables from within preprocess functions, when wanting to base the
|
|
* additional suggestions or classes on the path of the current page.
|
|
*
|
|
* @param $args
|
|
* An array of path arguments.
|
|
* @param $base
|
|
* A string identifying the base 'thing' from which more specific suggestions
|
|
* are derived. For example, 'page' or 'html'.
|
|
* @param $delimiter
|
|
* The string used to delimit increasingly specific information. The default
|
|
* of '__' is appropriate for theme hook suggestions. '-' is appropriate for
|
|
* extra classes.
|
|
*
|
|
* @return
|
|
* An array of suggestions, suitable for adding to
|
|
* hook_theme_suggestions_HOOK_alter() or to $variables['attributes']['class']
|
|
* if the suggestions represent extra CSS classes.
|
|
*/
|
|
function theme_get_suggestions($args, $base, $delimiter = '__') {
|
|
|
|
// Build a list of suggested theme hooks in order of
|
|
// specificity. One suggestion is made for every element of the current path,
|
|
// though numeric elements are not carried to subsequent suggestions. For
|
|
// example, for $base='page', http://www.example.com/node/1/edit would result
|
|
// in the following suggestions:
|
|
//
|
|
// page__node
|
|
// page__node__%
|
|
// page__node__1
|
|
// page__node__edit
|
|
|
|
$suggestions = [];
|
|
$prefix = $base;
|
|
foreach ($args as $arg) {
|
|
// Remove slashes or null per SA-CORE-2009-003 and change - (hyphen) to _
|
|
// (underscore).
|
|
//
|
|
// When we discover templates in @see drupal_find_theme_templates,
|
|
// hyphens (-) are converted to underscores (_) before the theme hook
|
|
// is registered. We do this because the hyphens used for delimiters
|
|
// in hook suggestions cannot be used in the function names of the
|
|
// associated preprocess functions. Any page templates designed to be used
|
|
// on paths that contain a hyphen are also registered with these hyphens
|
|
// converted to underscores so here we must convert any hyphens in path
|
|
// arguments to underscores here before fetching theme hook suggestions
|
|
// to ensure the templates are appropriately recognized.
|
|
$arg = str_replace(["/", "\\", "\0", '-'], ['', '', '', '_'], $arg);
|
|
// The percent acts as a wildcard for numeric arguments since
|
|
// asterisks are not valid filename characters on many filesystems.
|
|
if (is_numeric($arg)) {
|
|
$suggestions[] = $prefix . $delimiter . '%';
|
|
}
|
|
$suggestions[] = $prefix . $delimiter . $arg;
|
|
if (!is_numeric($arg)) {
|
|
$prefix .= $delimiter . $arg;
|
|
}
|
|
}
|
|
if (\Drupal::service('path.matcher')->isFrontPage()) {
|
|
// Front templates should be based on root only, not prefixed arguments.
|
|
$suggestions[] = $base . $delimiter . 'front';
|
|
}
|
|
|
|
return $suggestions;
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for maintenance page templates.
|
|
*
|
|
* Default template: maintenance-page.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - content - An array of page content.
|
|
*
|
|
* @see system_page_attachments()
|
|
*/
|
|
function template_preprocess_maintenance_page(&$variables) {
|
|
// @todo Rename the templates to page--maintenance + page--install.
|
|
template_preprocess_page($variables);
|
|
|
|
// @see system_page_attachments()
|
|
$variables['#attached']['library'][] = 'system/maintenance';
|
|
|
|
// Maintenance page and install page need branding info in variables because
|
|
// there is no blocks.
|
|
$site_config = \Drupal::config('system.site');
|
|
$variables['logo'] = theme_get_setting('logo.url');
|
|
$variables['site_name'] = $site_config->get('name');
|
|
$variables['site_slogan'] = $site_config->get('slogan');
|
|
|
|
// Maintenance page and install page need page title in variable because there
|
|
// are no blocks.
|
|
$variables['title'] = $variables['page']['#title'];
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for install page templates.
|
|
*
|
|
* Default template: install-page.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - content - An array of page content.
|
|
*
|
|
* @see template_preprocess_maintenance_page()
|
|
*/
|
|
function template_preprocess_install_page(&$variables) {
|
|
template_preprocess_maintenance_page($variables);
|
|
|
|
// Override the site name that is displayed on the page, since Drupal is
|
|
// still in the process of being installed.
|
|
$distribution_name = drupal_install_profile_distribution_name();
|
|
$variables['site_name'] = $distribution_name;
|
|
$variables['site_version'] = drupal_install_profile_distribution_version();
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for region templates.
|
|
*
|
|
* Default template: region.html.twig.
|
|
*
|
|
* Prepares the values passed to the theme_region function to be passed into a
|
|
* pluggable template engine. Uses the region name to generate a template file
|
|
* suggestions.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - elements: An associative array containing properties of the region.
|
|
*/
|
|
function template_preprocess_region(&$variables) {
|
|
// Create the $content variable that templates expect.
|
|
$variables['content'] = $variables['elements']['#children'];
|
|
$variables['region'] = $variables['elements']['#region'];
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for field templates.
|
|
*
|
|
* Default template: field.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: A render element representing the field.
|
|
* - attributes: A string containing the attributes for the wrapping div.
|
|
* - title_attributes: A string containing the attributes for the title.
|
|
*/
|
|
function template_preprocess_field(&$variables, $hook) {
|
|
$element = $variables['element'];
|
|
|
|
// Creating variables for the template.
|
|
$variables['entity_type'] = $element['#entity_type'];
|
|
$variables['field_name'] = $element['#field_name'];
|
|
$variables['field_type'] = $element['#field_type'];
|
|
$variables['label_display'] = $element['#label_display'];
|
|
|
|
$variables['label_hidden'] = ($element['#label_display'] == 'hidden');
|
|
// Always set the field label - allow themes to decide whether to display it.
|
|
// In addition the label should be rendered but hidden to support screen
|
|
// readers.
|
|
$variables['label'] = $element['#title'];
|
|
|
|
$variables['multiple'] = $element['#is_multiple'];
|
|
|
|
static $default_attributes;
|
|
if (!isset($default_attributes)) {
|
|
$default_attributes = new Attribute();
|
|
}
|
|
|
|
// Merge attributes when a single-value field has a hidden label.
|
|
if ($element['#label_display'] == 'hidden' && !$variables['multiple'] && !empty($element['#items'][0]->_attributes)) {
|
|
$variables['attributes'] = AttributeHelper::mergeCollections($variables['attributes'], (array) $element['#items'][0]->_attributes);
|
|
}
|
|
|
|
// We want other preprocess functions and the theme implementation to have
|
|
// fast access to the field item render arrays. The item render array keys
|
|
// (deltas) should always be numerically indexed starting from 0, and looping
|
|
// on those keys is faster than calling Element::children() or looping on all
|
|
// keys within $element, since that requires traversal of all element
|
|
// properties.
|
|
$variables['items'] = [];
|
|
$delta = 0;
|
|
while (!empty($element[$delta])) {
|
|
$variables['items'][$delta]['content'] = $element[$delta];
|
|
|
|
// Modules (e.g., rdf.module) can add field item attributes (to
|
|
// $item->_attributes) within hook_entity_prepare_view(). Some field
|
|
// formatters move those attributes into some nested formatter-specific
|
|
// element in order have them rendered on the desired HTML element (e.g., on
|
|
// the <a> element of a field item being rendered as a link). Other field
|
|
// formatters leave them within $element['#items'][$delta]['_attributes'] to
|
|
// be rendered on the item wrappers provided by field.html.twig.
|
|
$variables['items'][$delta]['attributes'] = !empty($element['#items'][$delta]->_attributes) ? new Attribute($element['#items'][$delta]->_attributes) : clone($default_attributes);
|
|
$delta++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for individual form element templates.
|
|
*
|
|
* Default template: field-multiple-value-form.html.twig.
|
|
*
|
|
* Combines multiple values into a table with drag-n-drop reordering.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: A render element representing the form element.
|
|
*/
|
|
function template_preprocess_field_multiple_value_form(&$variables) {
|
|
$element = $variables['element'];
|
|
$variables['multiple'] = $element['#cardinality_multiple'];
|
|
$variables['attributes'] = $element['#attributes'];
|
|
|
|
if ($variables['multiple']) {
|
|
$table_id = Html::getUniqueId($element['#field_name'] . '_values');
|
|
$order_class = $element['#field_name'] . '-delta-order';
|
|
$header_attributes = new Attribute(['class' => ['label']]);
|
|
if (!empty($element['#required'])) {
|
|
$header_attributes['class'][] = 'js-form-required';
|
|
$header_attributes['class'][] = 'form-required';
|
|
}
|
|
$header = [
|
|
[
|
|
'data' => [
|
|
'#prefix' => '<h4' . $header_attributes . '>',
|
|
'#markup' => $element['#title'],
|
|
'#suffix' => '</h4>',
|
|
],
|
|
'colspan' => 2,
|
|
'class' => ['field-label'],
|
|
],
|
|
t('Order', [], ['context' => 'Sort order']),
|
|
];
|
|
$rows = [];
|
|
|
|
// Sort items according to '_weight' (needed when the form comes back after
|
|
// preview or failed validation).
|
|
$items = [];
|
|
$variables['button'] = [];
|
|
foreach (Element::children($element) as $key) {
|
|
if ($key === 'add_more') {
|
|
$variables['button'] = &$element[$key];
|
|
}
|
|
else {
|
|
$items[] = &$element[$key];
|
|
}
|
|
}
|
|
usort($items, '_field_multiple_value_form_sort_helper');
|
|
|
|
// Add the items as table rows.
|
|
foreach ($items as $item) {
|
|
$item['_weight']['#attributes']['class'] = [$order_class];
|
|
|
|
// Remove weight form element from item render array so it can be rendered
|
|
// in a separate table column.
|
|
$delta_element = $item['_weight'];
|
|
unset($item['_weight']);
|
|
|
|
$cells = [
|
|
['data' => '', 'class' => ['field-multiple-drag']],
|
|
['data' => $item],
|
|
['data' => $delta_element, 'class' => ['delta-order']],
|
|
];
|
|
$rows[] = [
|
|
'data' => $cells,
|
|
'class' => ['draggable'],
|
|
];
|
|
}
|
|
|
|
$variables['table'] = [
|
|
'#type' => 'table',
|
|
'#header' => $header,
|
|
'#rows' => $rows,
|
|
'#attributes' => [
|
|
'id' => $table_id,
|
|
'class' => ['field-multiple-table'],
|
|
],
|
|
'#tabledrag' => [
|
|
[
|
|
'action' => 'order',
|
|
'relationship' => 'sibling',
|
|
'group' => $order_class,
|
|
],
|
|
],
|
|
];
|
|
|
|
if (!empty($element['#description'])) {
|
|
$description_id = $element['#attributes']['aria-describedby'];
|
|
$description_attributes['id'] = $description_id;
|
|
$variables['description']['attributes'] = new Attribute($description_attributes);
|
|
$variables['description']['content'] = $element['#description'];
|
|
|
|
// Add the description's id to the table aria attributes.
|
|
$variables['table']['#attributes']['aria-describedby'] = $element['#attributes']['aria-describedby'];
|
|
}
|
|
}
|
|
else {
|
|
$variables['elements'] = [];
|
|
foreach (Element::children($element) as $key) {
|
|
$variables['elements'][] = $element[$key];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for breadcrumb templates.
|
|
*
|
|
* Default template: breadcrumb.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - links: A list of \Drupal\Core\Link objects which should be rendered.
|
|
*/
|
|
function template_preprocess_breadcrumb(&$variables) {
|
|
$variables['breadcrumb'] = [];
|
|
/** @var \Drupal\Core\Link $link */
|
|
foreach ($variables['links'] as $key => $link) {
|
|
$variables['breadcrumb'][$key] = ['text' => $link->getText(), 'url' => $link->getUrl()->toString()];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for pager templates.
|
|
*
|
|
* Default template: pager.html.twig.
|
|
*
|
|
* Menu callbacks that display paged query results should use #type => pager
|
|
* to retrieve a pager control so that users can view other results. Format a
|
|
* list of nearby pages with additional query results.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - pager: A render element containing:
|
|
* - #tags: An array of labels for the controls in the pager.
|
|
* - #element: An optional integer to distinguish between multiple pagers on
|
|
* one page.
|
|
* - #parameters: An associative array of query string parameters to append
|
|
* to the pager links.
|
|
* - #route_parameters: An associative array of the route parameters.
|
|
* - #quantity: The number of pages in the list.
|
|
*/
|
|
function template_preprocess_pager(&$variables) {
|
|
$element = $variables['pager']['#element'];
|
|
$parameters = $variables['pager']['#parameters'];
|
|
$quantity = empty($variables['pager']['#quantity']) ? 0 : $variables['pager']['#quantity'];
|
|
$route_name = $variables['pager']['#route_name'];
|
|
$route_parameters = $variables['pager']['#route_parameters'] ?? [];
|
|
|
|
/** @var \Drupal\Core\Pager\PagerManagerInterface $pager_manager */
|
|
$pager_manager = \Drupal::service('pager.manager');
|
|
|
|
$pager = $pager_manager->getPager($element);
|
|
|
|
// Nothing to do if there is no pager.
|
|
if (!isset($pager)) {
|
|
return;
|
|
}
|
|
|
|
$pager_max = $pager->getTotalPages();
|
|
|
|
// Nothing to do if there is only one page.
|
|
if ($pager_max <= 1) {
|
|
return;
|
|
}
|
|
|
|
$tags = $variables['pager']['#tags'];
|
|
|
|
// Calculate various markers within this pager piece:
|
|
// Middle is used to "center" pages around the current page.
|
|
$pager_middle = ceil($quantity / 2);
|
|
$current_page = $pager->getCurrentPage();
|
|
// The current pager is the page we are currently paged to.
|
|
$pager_current = $current_page + 1;
|
|
// The first pager is the first page listed by this pager piece (re quantity).
|
|
$pager_first = $pager_current - $pager_middle + 1;
|
|
// The last is the last page listed by this pager piece (re quantity).
|
|
$pager_last = $pager_current + $quantity - $pager_middle;
|
|
// End of marker calculations.
|
|
|
|
// Prepare for generation loop.
|
|
$i = $pager_first;
|
|
if ($pager_last > $pager_max) {
|
|
// Adjust "center" if at end of query.
|
|
$i = $i + ($pager_max - $pager_last);
|
|
$pager_last = $pager_max;
|
|
}
|
|
if ($i <= 0) {
|
|
// Adjust "center" if at start of query.
|
|
$pager_last = $pager_last + (1 - $i);
|
|
$i = 1;
|
|
}
|
|
// End of generation loop preparation.
|
|
|
|
// Create the "first" and "previous" links if we are not on the first page.
|
|
if ($current_page > 0) {
|
|
$items['first'] = [];
|
|
$items['first']['attributes'] = new Attribute();
|
|
$options = [
|
|
'query' => $pager_manager->getUpdatedParameters($parameters, $element, 0),
|
|
];
|
|
$items['first']['href'] = Url::fromRoute($route_name, $route_parameters, $options)->toString();
|
|
if (isset($tags[0])) {
|
|
$items['first']['text'] = $tags[0];
|
|
}
|
|
|
|
$items['previous'] = [];
|
|
$items['previous']['attributes'] = new Attribute();
|
|
$options = [
|
|
'query' => $pager_manager->getUpdatedParameters($parameters, $element, $current_page - 1),
|
|
];
|
|
$items['previous']['href'] = Url::fromRoute($route_name, $route_parameters, $options)->toString();
|
|
if (isset($tags[1])) {
|
|
$items['previous']['text'] = $tags[1];
|
|
}
|
|
}
|
|
|
|
if ($i != $pager_max) {
|
|
// Add an ellipsis if there are further previous pages.
|
|
if ($i > 1) {
|
|
$variables['ellipses']['previous'] = TRUE;
|
|
}
|
|
// Now generate the actual pager piece.
|
|
for (; $i <= $pager_last && $i <= $pager_max; $i++) {
|
|
$options = [
|
|
'query' => $pager_manager->getUpdatedParameters($parameters, $element, $i - 1),
|
|
];
|
|
$items['pages'][$i]['href'] = Url::fromRoute($route_name, $route_parameters, $options)->toString();
|
|
$items['pages'][$i]['attributes'] = new Attribute();
|
|
if ($i == $pager_current) {
|
|
$variables['current'] = $i;
|
|
}
|
|
}
|
|
// Add an ellipsis if there are further next pages.
|
|
if ($i < $pager_max + 1) {
|
|
$variables['ellipses']['next'] = TRUE;
|
|
}
|
|
}
|
|
|
|
// Create the "next" and "last" links if we are not on the last page.
|
|
if ($current_page < ($pager_max - 1)) {
|
|
$items['next'] = [];
|
|
$items['next']['attributes'] = new Attribute();
|
|
$options = [
|
|
'query' => $pager_manager->getUpdatedParameters($parameters, $element, $current_page + 1),
|
|
];
|
|
$items['next']['href'] = Url::fromRoute($route_name, $route_parameters, $options)->toString();
|
|
if (isset($tags[3])) {
|
|
$items['next']['text'] = $tags[3];
|
|
}
|
|
|
|
$items['last'] = [];
|
|
$items['last']['attributes'] = new Attribute();
|
|
$options = [
|
|
'query' => $pager_manager->getUpdatedParameters($parameters, $element, $pager_max - 1),
|
|
];
|
|
$items['last']['href'] = Url::fromRoute($route_name, $route_parameters, $options)->toString();
|
|
if (isset($tags[4])) {
|
|
$items['last']['text'] = $tags[4];
|
|
}
|
|
}
|
|
|
|
$variables['items'] = $items;
|
|
$variables['heading_id'] = Html::getUniqueId('pagination-heading');
|
|
|
|
// The rendered link needs to play well with any other query parameter used
|
|
// on the page, like exposed filters, so for the cacheability all query
|
|
// parameters matter.
|
|
$variables['#cache']['contexts'][] = 'url.query_args';
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for single local task link templates.
|
|
*
|
|
* Default template: menu-local-task.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: A render element containing:
|
|
* - #link: A menu link array with 'title', 'url', and (optionally)
|
|
* 'localized_options' keys.
|
|
* - #active: A boolean indicating whether the local task is active.
|
|
*/
|
|
function template_preprocess_menu_local_task(&$variables) {
|
|
$link = $variables['element']['#link'];
|
|
$link += [
|
|
'localized_options' => [],
|
|
];
|
|
$link_text = $link['title'];
|
|
|
|
if (!empty($variables['element']['#active'])) {
|
|
$variables['is_active'] = TRUE;
|
|
|
|
// Add text to indicate active tab for non-visual users.
|
|
$active = new FormattableMarkup('<span class="visually-hidden">@label</span>', ['@label' => t('(active tab)')]);
|
|
$link_text = t('@local-task-title@active', ['@local-task-title' => $link_text, '@active' => $active]);
|
|
}
|
|
|
|
$link['localized_options']['set_active_class'] = TRUE;
|
|
|
|
$variables['link'] = [
|
|
'#type' => 'link',
|
|
'#title' => $link_text,
|
|
'#url' => $link['url'],
|
|
'#options' => $link['localized_options'],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Prepares variables for single local action link templates.
|
|
*
|
|
* Default template: menu-local-action.html.twig.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing:
|
|
* - element: A render element containing:
|
|
* - #link: A menu link array with 'title', 'url', and (optionally)
|
|
* 'localized_options' keys.
|
|
*/
|
|
function template_preprocess_menu_local_action(&$variables) {
|
|
$link = $variables['element']['#link'];
|
|
$link += [
|
|
'localized_options' => [],
|
|
];
|
|
$link['localized_options']['attributes']['class'][] = 'button';
|
|
$link['localized_options']['attributes']['class'][] = 'button-action';
|
|
$link['localized_options']['set_active_class'] = TRUE;
|
|
|
|
$variables['link'] = [
|
|
'#type' => 'link',
|
|
'#title' => $link['title'],
|
|
'#options' => $link['localized_options'],
|
|
'#url' => $link['url'],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Callback for usort() within template_preprocess_field_multiple_value_form().
|
|
*
|
|
* Sorts using ['_weight']['#value']
|
|
*/
|
|
function _field_multiple_value_form_sort_helper($a, $b) {
|
|
$a_weight = (is_array($a) && isset($a['_weight']['#value']) ? $a['_weight']['#value'] : 0);
|
|
$b_weight = (is_array($b) && isset($b['_weight']['#value']) ? $b['_weight']['#value'] : 0);
|
|
return $a_weight - $b_weight;
|
|
}
|
|
|
|
/**
|
|
* Provides theme registration for themes across .inc files.
|
|
*/
|
|
function drupal_common_theme() {
|
|
return [
|
|
// From theme.inc.
|
|
'html' => [
|
|
'render element' => 'html',
|
|
],
|
|
'page' => [
|
|
'render element' => 'page',
|
|
],
|
|
'page_title' => [
|
|
'variables' => ['title' => NULL],
|
|
],
|
|
'region' => [
|
|
'render element' => 'elements',
|
|
],
|
|
'time' => [
|
|
'variables' => ['timestamp' => NULL, 'text' => NULL, 'attributes' => []],
|
|
],
|
|
'datetime_form' => [
|
|
'render element' => 'element',
|
|
],
|
|
'datetime_wrapper' => [
|
|
'render element' => 'element',
|
|
],
|
|
'status_messages' => [
|
|
'variables' => ['status_headings' => [], 'message_list' => NULL],
|
|
],
|
|
'links' => [
|
|
'variables' => ['links' => [], 'attributes' => ['class' => ['links']], 'heading' => [], 'set_active_class' => FALSE],
|
|
],
|
|
'dropbutton_wrapper' => [
|
|
'variables' => ['children' => NULL],
|
|
],
|
|
'image' => [
|
|
// HTML 4 and XHTML 1.0 always require an alt attribute. The HTML 5 draft
|
|
// allows the alt attribute to be omitted in some cases. Therefore,
|
|
// default the alt attribute to an empty string, but allow code providing
|
|
// variables to image.html.twig templates to pass explicit NULL for it to
|
|
// be omitted. Usually, neither omission nor an empty string satisfies
|
|
// accessibility requirements, so it is strongly encouraged for code
|
|
// building variables for image.html.twig templates to pass a meaningful
|
|
// value for the alt variable.
|
|
// - http://www.w3.org/TR/REC-html40/struct/objects.html#h-13.8
|
|
// - http://www.w3.org/TR/xhtml1/dtds.html
|
|
// - http://dev.w3.org/html5/spec/Overview.html#alt
|
|
// The title attribute is optional in all cases, so it is omitted by
|
|
// default.
|
|
'variables' => ['uri' => NULL, 'width' => NULL, 'height' => NULL, 'alt' => '', 'title' => NULL, 'attributes' => [], 'sizes' => NULL, 'srcset' => [], 'style_name' => NULL],
|
|
],
|
|
'breadcrumb' => [
|
|
'variables' => ['links' => []],
|
|
],
|
|
'table' => [
|
|
'variables' => ['header' => NULL, 'rows' => NULL, 'footer' => NULL, 'attributes' => [], 'caption' => NULL, 'colgroups' => [], 'sticky' => FALSE, 'responsive' => TRUE, 'empty' => ''],
|
|
],
|
|
'tablesort_indicator' => [
|
|
'variables' => ['style' => NULL],
|
|
],
|
|
'mark' => [
|
|
'variables' => ['status' => MARK_NEW],
|
|
],
|
|
'item_list' => [
|
|
'variables' => ['items' => [], 'title' => '', 'list_type' => 'ul', 'wrapper_attributes' => [], 'attributes' => [], 'empty' => NULL, 'context' => []],
|
|
],
|
|
'feed_icon' => [
|
|
'variables' => ['url' => NULL, 'title' => NULL],
|
|
],
|
|
'progress_bar' => [
|
|
'variables' => ['label' => NULL, 'percent' => NULL, 'message' => NULL],
|
|
],
|
|
'indentation' => [
|
|
'variables' => ['size' => 1],
|
|
],
|
|
// From theme.maintenance.inc.
|
|
'maintenance_page' => [
|
|
'render element' => 'page',
|
|
],
|
|
'install_page' => [
|
|
'render element' => 'page',
|
|
],
|
|
'maintenance_task_list' => [
|
|
'variables' => ['items' => NULL, 'active' => NULL, 'variant' => NULL],
|
|
],
|
|
'authorize_report' => [
|
|
'variables' => ['messages' => [], 'attributes' => []],
|
|
'includes' => ['core/includes/theme.maintenance.inc'],
|
|
'template' => 'authorize-report',
|
|
],
|
|
'pager' => [
|
|
'render element' => 'pager',
|
|
],
|
|
// From menu.inc.
|
|
'menu' => [
|
|
'variables' => ['menu_name' => NULL, 'items' => [], 'attributes' => []],
|
|
],
|
|
'menu_local_task' => [
|
|
'render element' => 'element',
|
|
],
|
|
'menu_local_action' => [
|
|
'render element' => 'element',
|
|
],
|
|
'menu_local_tasks' => [
|
|
'variables' => ['primary' => [], 'secondary' => []],
|
|
],
|
|
// From form.inc.
|
|
'input' => [
|
|
'render element' => 'element',
|
|
],
|
|
'select' => [
|
|
'render element' => 'element',
|
|
],
|
|
'fieldset' => [
|
|
'render element' => 'element',
|
|
],
|
|
'details' => [
|
|
'render element' => 'element',
|
|
],
|
|
'radios' => [
|
|
'render element' => 'element',
|
|
],
|
|
'checkboxes' => [
|
|
'render element' => 'element',
|
|
],
|
|
'form' => [
|
|
'render element' => 'element',
|
|
],
|
|
'textarea' => [
|
|
'render element' => 'element',
|
|
],
|
|
'form_element' => [
|
|
'render element' => 'element',
|
|
],
|
|
'form_element_label' => [
|
|
'render element' => 'element',
|
|
],
|
|
'vertical_tabs' => [
|
|
'render element' => 'element',
|
|
],
|
|
'container' => [
|
|
'render element' => 'element',
|
|
],
|
|
// From field system.
|
|
'field' => [
|
|
'render element' => 'element',
|
|
],
|
|
'field_multiple_value_form' => [
|
|
'render element' => 'element',
|
|
],
|
|
];
|
|
}
|