seven.theme in Drupal 9
Same filename and directory in other branches
Functions to support theming in the Seven theme.
File
core/themes/seven/seven.themeView source
<?php
/**
* @file
* Functions to support theming in the Seven theme.
*/
use Drupal\Component\Utility\Html;
use Drupal\Core\Url;
use Drupal\Core\Form\FormStateInterface;
use Drupal\media\MediaForm;
use Drupal\views\Form\ViewsForm;
use Drupal\views\ViewExecutable;
/**
* Implements hook_preprocess_HOOK() for HTML document templates.
*/
function seven_preprocess_html(&$variables) {
// If on a node add or edit page, add a node-layout class.
$path_args = explode('/', \Drupal::request()
->getPathInfo());
if ($suggestions = theme_get_suggestions($path_args, 'page', '-')) {
foreach ($suggestions as $suggestion) {
if ($suggestion === 'page-node-edit' || strpos($suggestion, 'page-node-add') !== FALSE) {
$variables['attributes']['class'][] = 'node-form-layout';
}
}
}
}
/**
* Implements hook_preprocess_HOOK() for menu-local-tasks templates.
*
* Use preprocess hook to set #attached to child elements
* because they will be processed by Twig and drupal_render will
* be invoked.
*/
function seven_preprocess_menu_local_tasks(&$variables) {
if (!empty($variables['primary'])) {
$variables['primary']['#attached'] = [
'library' => [
'seven/drupal.nav-tabs',
],
];
}
elseif (!empty($variables['secondary'])) {
$variables['secondary']['#attached'] = [
'library' => [
'seven/drupal.nav-tabs',
],
];
}
}
/**
* Implements hook_preprocess_HOOK() for menu-local-task templates.
*/
function seven_preprocess_menu_local_task(&$variables) {
$variables['attributes']['class'][] = 'tabs__tab';
}
/**
* Implements hook_preprocess_HOOK() for list of available node type templates.
*/
function seven_preprocess_node_add_list(&$variables) {
if (!empty($variables['content'])) {
/** @var \Drupal\node\NodeTypeInterface $type */
foreach ($variables['content'] as $type) {
$variables['types'][$type
->id()]['label'] = $type
->label();
$variables['types'][$type
->id()]['url'] = Url::fromRoute('node.add', [
'node_type' => $type
->id(),
])
->toString();
}
}
}
/**
* Implements hook_preprocess_HOOK() for block content add list templates.
*
* Displays the list of available custom block types for creation, adding
* separate variables for the label and url.
*/
function seven_preprocess_block_content_add_list(&$variables) {
if (!empty($variables['content'])) {
foreach ($variables['content'] as $type) {
$variables['types'][$type
->id()]['label'] = $type
->label();
$options = [
'query' => \Drupal::request()->query
->all(),
];
$variables['types'][$type
->id()]['url'] = Url::fromRoute('block_content.add_form', [
'block_content_type' => $type
->id(),
], $options)
->toString();
}
}
}
/**
* Implements hook_preprocess_block() for block content.
*
* Disables contextual links for all blocks except for layout builder blocks.
*/
function seven_preprocess_block(&$variables) {
if (isset($variables['title_suffix']['contextual_links']) && !isset($variables['elements']['#contextual_links']['layout_builder_block'])) {
unset($variables['title_suffix']['contextual_links']);
unset($variables['elements']['#contextual_links']);
$variables['attributes']['class'] = array_diff($variables['attributes']['class'], [
'contextual-region',
]);
}
}
/**
* Implements hook_preprocess_HOOK() for block admin page templates.
*/
function seven_preprocess_admin_block_content(&$variables) {
if (!empty($variables['content'])) {
foreach ($variables['content'] as $key => $item) {
$variables['content'][$key]['url'] = $item['url']
->toString();
}
}
}
/**
* Implements hook_preprocess_HOOK() for menu-local-action templates.
*/
function seven_preprocess_menu_local_action(array &$variables) {
$variables['link']['#options']['attributes']['class'][] = 'button--primary';
$variables['link']['#options']['attributes']['class'][] = 'button--small';
// We require Modernizr's touch test for button styling.
$variables['#attached']['library'][] = 'core/modernizr';
}
/**
* Implements hook_element_info_alter().
*/
function seven_element_info_alter(&$type) {
// We require Modernizr for button styling.
if (isset($type['button'])) {
$type['button']['#attached']['library'][] = 'core/modernizr';
}
}
/**
* Implements hook_preprocess_install_page().
*/
function seven_preprocess_install_page(&$variables) {
// Seven has custom styling for the install page.
$variables['#attached']['library'][] = 'seven/install-page';
}
/**
* Implements hook_preprocess_maintenance_page().
*/
function seven_preprocess_maintenance_page(&$variables) {
// Seven has custom styling for the maintenance page.
$variables['#attached']['library'][] = 'seven/maintenance-page';
}
/**
* Implements hook_form_BASE_FORM_ID_alter() for \Drupal\node\NodeForm.
*
* Changes vertical tabs to container.
*/
function seven_form_node_form_alter(&$form, FormStateInterface $form_state) {
$form['#theme'] = [
'node_edit_form',
];
$form['#attached']['library'][] = 'seven/node-form';
$form['advanced']['#type'] = 'container';
$form['meta']['#type'] = 'container';
$form['meta']['#access'] = TRUE;
$form['meta']['changed']['#wrapper_attributes']['class'][] = 'container-inline';
$form['meta']['author']['#wrapper_attributes']['class'][] = 'container-inline';
$form['revision_information']['#type'] = 'container';
$form['revision_information']['#group'] = 'meta';
}
/**
* Implements hook_form_BASE_FORM_ID_alter() for \Drupal\media\MediaForm.
*/
function seven_form_media_form_alter(&$form, FormStateInterface $form_state) {
// Only attach CSS from core if this form comes from Media core, and not from
// the contrib Media Entity 1.x branch.
if (\Drupal::moduleHandler()
->moduleExists('media') && $form_state
->getFormObject() instanceof MediaForm) {
// @todo Revisit after https://www.drupal.org/node/2892304 is in. It
// introduces a footer region to these forms which will allow for us to
// display a top border over the published checkbox by defining a
// media-edit-form.html.twig template the same way node does.
$form['#attached']['library'][] = 'seven/media-form';
}
}
/**
* Implements hook_form_FORM_ID_alter() for language_content_settings_form().
*/
function seven_form_language_content_settings_form_alter(array &$form, FormStateInterface $form_state) {
$form['#attached']['library'][] = 'seven/layout_builder_content_translation_admin';
}
/**
* Implements hook_preprocess_views_view_fields().
*
* This targets each rendered media item in the grid display of the media
* library's modal dialog.
*/
function seven_preprocess_views_view_fields__media_library(array &$variables) {
// Add classes to media rendered entity field so it can be targeted for
// styling. Adding this class in a template is very difficult to do.
if (isset($variables['fields']['rendered_entity']->wrapper_attributes)) {
$variables['fields']['rendered_entity']->wrapper_attributes
->addClass('media-library-item__click-to-select-trigger');
}
}
/**
* Implements hook_form_alter().
*/
function seven_form_alter(array &$form, FormStateInterface $form_state, $form_id) {
$form_object = $form_state
->getFormObject();
if ($form_object instanceof ViewsForm && strpos($form_object
->getBaseFormId(), 'views_form_media_library') === 0) {
if (isset($form['header'])) {
$form['header']['#attributes']['class'][] = 'media-library-views-form__header';
$form['header']['media_bulk_form']['#attributes']['class'][] = 'media-library-views-form__bulk_form';
}
$form['actions']['submit']['#attributes']['class'] = [
'media-library-select',
];
// This conditional exists because the media-library-views-form class is
// currently added by Classy, but Seven will eventually not use Classy as a
// base theme.
// @todo remove conditional, keep class addition in
// https://drupal.org/node/3110137
// @see https://www.drupal.org/node/3109287
// @see classy_form_alter()
if (!isset($form['#attributes']['class']) || !in_array('media-library-views-form', $form['#attributes']['class'])) {
$form['#attributes']['class'][] = 'media-library-views-form';
}
}
// Add after build to add a CSS class to the form actions.
if ($form_id === 'views_exposed_form' && strpos($form['#id'], 'views-exposed-form-media-library-widget') === 0) {
$form['actions']['#attributes']['class'][] = 'media-library-view--form-actions';
}
}
/**
* Implements hook_form_BASE_FORM_ID_alter().
*/
function seven_form_media_library_add_form_alter(array &$form, FormStateInterface $form_state) {
$form['#attributes']['class'][] = 'media-library-add-form';
$form['#attached']['library'][] = 'seven/media_library';
// If there are unsaved media items, apply styling classes to various parts
// of the form.
if (isset($form['media'])) {
$form['#attributes']['class'][] = 'media-library-add-form--with-input';
// Put a wrapper around the informational message above the unsaved media
// items.
$form['description']['#template'] = '<p class="media-library-add-form__description">{{ text }}</p>';
}
else {
$form['#attributes']['class'][] = 'media-library-add-form--without-input';
}
}
/**
* Implements hook_form_FORM_ID_alter().
*/
function seven_form_media_library_add_form_upload_alter(array &$form, FormStateInterface $form_state) {
$form['#attributes']['class'][] = 'media-library-add-form--upload';
if (isset($form['container'])) {
$form['container']['#attributes']['class'][] = 'media-library-add-form__input-wrapper';
}
}
/**
* Implements hook_form_FORM_ID_alter().
*/
function seven_form_media_library_add_form_oembed_alter(array &$form, FormStateInterface $form_state) {
$form['#attributes']['class'][] = 'media-library-add-form--oembed';
// If no media items have been added yet, add a couple of styling classes
// to the initial URL form.
if (isset($form['container'])) {
$form['container']['#attributes']['class'][] = 'media-library-add-form__input-wrapper';
$form['container']['url']['#attributes']['class'][] = 'media-library-add-form-oembed-url';
$form['container']['submit']['#attributes']['class'][] = 'media-library-add-form-oembed-submit';
}
}
/**
* Implements hook_preprocess_item_list__media_library_add_form_media_list().
*
* This targets each new, unsaved media item added to the media library, before
* they are saved.
*/
function seven_preprocess_item_list__media_library_add_form_media_list(array &$variables) {
foreach ($variables['items'] as &$item) {
$item['value']['preview']['#attributes']['class'][] = 'media-library-add-form__preview';
$item['value']['fields']['#attributes']['class'][] = 'media-library-add-form__fields';
$item['value']['remove_button']['#attributes']['class'][] = 'media-library-add-form__remove-button';
// #source_field_name is set by AddFormBase::buildEntityFormElement()
// to help themes and form_alter hooks identify the source field.
$fields =& $item['value']['fields'];
$source_field_name = $fields['#source_field_name'];
if (isset($fields[$source_field_name])) {
$fields[$source_field_name]['#attributes']['class'][] = 'media-library-add-form__source-field';
}
}
}
/**
* Implements hook_preprocess_media_library_item__widget().
*
* This targets each media item selected in an entity reference field.
*/
function seven_preprocess_media_library_item__widget(array &$variables) {
$variables['content']['remove_button']['#attributes']['class'][] = 'media-library-item__remove';
}
/**
* Implements hook_preprocess_media_library_item__small().
*
* This targets each pre-selected media item selected when adding new media in
* the modal media library dialog.
*/
function seven_preprocess_media_library_item__small(array &$variables) {
$variables['content']['select']['#attributes']['class'][] = 'media-library-item__click-to-select-checkbox';
}
/**
* @todo Remove this when https://www.drupal.org/project/drupal/issues/2999549
* lands.
*
* @see \Drupal\media_library\Plugin\Field\FieldWidget\MediaLibraryWidget::formElement()
*/
function seven_preprocess_fieldset__media_library_widget(array &$variables) {
if (isset($variables['prefix']['weight_toggle'])) {
$variables['prefix']['weight_toggle']['#attributes']['class'][] = 'media-library-widget__toggle-weight';
}
if (isset($variables['suffix']['open_button'])) {
$variables['suffix']['open_button']['#attributes']['class'][] = 'media-library-open-button';
}
}
/**
* Implements hook_views_pre_render().
*/
function seven_views_pre_render(ViewExecutable $view) {
$add_classes = function (&$option, array $classes_to_add) {
$classes = preg_split('/\\s+/', $option);
$classes = array_filter($classes);
$classes = array_merge($classes, $classes_to_add);
$option = implode(' ', array_unique($classes));
};
if ($view
->id() === 'media_library') {
if ($view->display_handler->options['defaults']['css_class']) {
$add_classes($view->displayHandlers
->get('default')->options['css_class'], [
'media-library-view',
]);
}
else {
$add_classes($view->display_handler->options['css_class'], [
'media-library-view',
]);
}
if ($view->current_display === 'page') {
if (array_key_exists('media_bulk_form', $view->field)) {
$add_classes($view->field['media_bulk_form']->options['element_class'], [
'media-library-item__click-to-select-checkbox',
]);
}
if (array_key_exists('rendered_entity', $view->field)) {
$add_classes($view->field['rendered_entity']->options['element_class'], [
'media-library-item__content',
]);
}
if (array_key_exists('edit_media', $view->field)) {
$add_classes($view->field['edit_media']->options['alter']['link_class'], [
'media-library-item__edit',
]);
}
if (array_key_exists('delete_media', $view->field)) {
$add_classes($view->field['delete_media']->options['alter']['link_class'], [
'media-library-item__remove',
]);
}
}
elseif (strpos($view->current_display, 'widget') === 0) {
if (array_key_exists('rendered_entity', $view->field)) {
$add_classes($view->field['rendered_entity']->options['element_class'], [
'media-library-item__content',
]);
}
if (array_key_exists('media_library_select_form', $view->field)) {
$add_classes($view->field['media_library_select_form']->options['element_wrapper_class'], [
'media-library-item__click-to-select-checkbox',
]);
}
if ($view->display_handler->options['defaults']['css_class']) {
$add_classes($view->displayHandlers
->get('default')->options['css_class'], [
'media-library-view--widget',
]);
}
else {
$add_classes($view->display_handler->options['css_class'], [
'media-library-view--widget',
]);
}
}
}
}
/**
* Implements hook_preprocess_links__media_library_menu().
*
* This targets the menu of available media types in the media library's modal
* dialog.
*
* @todo Do this in the relevant template once
* https://www.drupal.org/project/drupal/issues/3088856 is resolved.
* @todo revisit in https://drupal.org/node/3110132
*/
function seven_preprocess_links__media_library_menu(array &$variables) {
foreach ($variables['links'] as &$link) {
// This conditional exists because the media-library-menu__link class is
// currently added by Classy, but Seven will eventually not use Classy as a
// base theme.
// @todo remove conditional, keep class addition in
// https://drupal.org/node/3110137
// @see https://www.drupal.org/node/3109287
// @see classy_preprocess_links__media_library_menu()
if (!isset($link['link']['#options']['attributes']['class']) || !in_array('media-library-menu__link', $link['link']['#options']['attributes']['class'])) {
$link['link']['#options']['attributes']['class'][] = 'media-library-menu__link';
}
}
}
/**
* Implements hook_preprocess_image_widget().
*/
function seven_preprocess_image_widget(array &$variables) {
$data =& $variables['data'];
// This prevents image widget templates from rendering preview container HTML
// to users that do not have permission to access these previews.
// @todo revisit in https://drupal.org/node/953034
// @todo revisit in https://drupal.org/node/3114318
if (isset($data['preview']['#access']) && $data['preview']['#access'] === FALSE) {
unset($data['preview']);
}
// @todo Revisit everything in this conditional in
// https://drupal.org/node/3117430
if (!empty($variables['element']['fids']['#value'])) {
$file = reset($variables['element']['#files']);
$data["file_{$file->id()}"]['filename']['#suffix'] = ' <span class="file-size">(' . format_size($file
->getSize()) . ')</span> ';
}
}
/**
* Prepares variables for update version templates.
*
* Default template: update-version.html.twig.
*
* @param array $variables
* An associative array containing:
* - version: An array of information about the release version.
*/
function seven_preprocess_update_version(array &$variables) {
$variables['#attached']['library'][] = 'seven/update-report';
}
/**
* Implements template_preprocess_links().
*
* This makes it so array keys of #links items are added as a class. This
* functionality was removed in Drupal 8.1, but still necessary in some
* instances.
*
* @todo remove in https://drupal.org/node/3120962
*/
function seven_preprocess_links(&$variables) {
if (!empty($variables['links'])) {
foreach ($variables['links'] as $key => $value) {
if (!is_numeric($key)) {
$class = Html::getClass($key);
$variables['links'][$key]['attributes']
->addClass($class);
}
}
}
}