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localgov_base.theme
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localgov_base.theme
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<?php
/**
* @file
* Theme hooks to support the LocalGov Base Theme.
*/
use Drupal\Component\Utility\Crypt;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\ViewExecutable;
/**
* Implements hook_form_system_theme_settings_alter().
*/
function localgov_base_form_system_theme_settings_alter(&$form, FormStateInterface $form_state, $form_id = NULL) {
// Work-around for a core bug affecting admin themes. See issue #943212.
if (isset($form_id)) {
return;
}
$form['localgov_base_remove_css'] = [
'#type' => 'checkbox',
'#title' => t('Remove CSS libraries from base theme.'),
'#default_value' => theme_get_setting('localgov_base_remove_css'),
'#description' => t("Check this box to disable the base theme's CSS"),
];
$form['localgov_base_remove_js'] = [
'#type' => 'checkbox',
'#title' => t('Remove JS libraries from base theme.'),
'#default_value' => theme_get_setting('localgov_base_remove_js'),
'#description' => t("Check this box to disable the base theme's JavaScript"),
];
$form['localgov_base_add_unpublished_background_colour'] = [
'#type' => 'checkbox',
'#title' => t('Add background colour to unpublished content.'),
'#default_value' => theme_get_setting('localgov_base_add_unpublished_background_colour'),
'#description' => t("If you remove the background colour, you should probably also check the box below to add '[Draft]' to the title of unpublished content."),
];
$form['localgov_base_add_draft_note_to_unpublished_content'] = [
'#type' => 'checkbox',
'#title' => t('Add "Draft" to title of unpublished content.'),
'#default_value' => theme_get_setting('localgov_base_add_draft_note_to_unpublished_content'),
'#description' => t('This adds the word "Draft" to the title of any unpublished content. This is useful if you have removed the pink background from unpublished content.'),
];
}
/**
* Implements hook_preprocess_HOOK().
*/
function localgov_base_preprocess_page(&$variables) {
// Work around for Drupal core issue.
// Blocks employ lazy building. This makes it difficult to determine from
// **Twig templates** if they will eventually produce empty content or not.
// @see https://www.drupal.org/node/953034
// @see https://www.drupal.org/forum/support/module-development-and-code-questions/2016-04-07/drupal-8-regions-with-and-empty#comment-12149518
$active_theme = \Drupal::service('theme.manager')->getActiveTheme()->getName();
$regions = array_keys(system_region_list($active_theme, REGIONS_VISIBLE));
$excluded_regions = [
'messages',
'disabled',
];
foreach ($regions as $region) {
if (in_array($region, $excluded_regions)) {
continue;
}
$copy = $variables['page'][$region];
$rendered = \Drupal::service('renderer')->renderPlain($copy);
$variables['has_' . $region] = !empty(trim(strip_tags($rendered, '<drupal-render-placeholder><embed><hr><iframe><img><input><link><object><script><source><style><video>')));
}
$variables['has_sidebars'] = $variables['has_sidebar_first'] || $variables['has_sidebar_second'];
if (!isset($variables['localgov_base_remove_css'])) {
$variables['#attached']['library'][] = 'localgov_base/global';
}
// We have a theme setting boolean for removing the pink background from
// unpublished content. If that setting is false,
// we will add the 'unpublished' library to our page.
if (theme_get_setting('localgov_base_add_unpublished_background_colour') == TRUE) {
$variables['#attached']['library'][] = 'localgov_base/unpublished-bg';
}
}
/**
* Implements hook_preprocess_HOOK().
*/
function localgov_base_preprocess_node(&$variables) {
$node_status = $variables['node']->isPublished();
if ($node_status === FALSE) {
if (theme_get_setting('localgov_base_add_draft_note_to_unpublished_content') == TRUE) {
$variables['label'] = t('[Draft]') . " " . $variables['node']->label();
}
}
}
/**
* Implements hook_preprocess_HOOK().
*/
function localgov_base_preprocess_block(&$variables) {
if ($variables['plugin_id'] === 'localgov_page_header_block') {
$route_match = Drupal::routeMatch();
// Check if we are on a node page, latest version or a preview link.
$route = $route_match->getRouteName();
if ($route == 'entity.node.canonical' || $route == 'entity.node.latest_version' || $route == 'entity.node.preview_link') {
$node = $route_match->getParameter('node');
$node_status = $node->isPublished();
if ($node_status === FALSE) {
if (theme_get_setting('localgov_base_add_draft_note_to_unpublished_content') == TRUE) {
$current_title = $variables['content'][0]['#title'];
$variables['content'][0]['#title'] = t('[Draft]') . " " . $current_title;
}
}
}
}
}
/**
* Implements hook_preprocess_file_link().
*
* Changes:
* - Inserts file *type* and size into the theme variable.
* - Reformats file size. Example: 123.4KB.
* - Appends file metadata to the file link text.
*
* @see template_preprocess_file_link()
*/
function localgov_base_preprocess_file_link(&$variables) {
$file = $variables['file'];
$filename = $file->getFilename();
$file_extension = pathinfo($filename, PATHINFO_EXTENSION);
$variables['file_type'] = strtoupper($file_extension);
// 123.45 KB -> 123.45KB
$variables['file_size'] = strtr($variables['file_size'], [' ' => '']);
if (isset($variables['link']['#title'])) {
$variables['link']['#title'] = [
'#markup' => "{$variables['link']['#title']} <span class=\"file-meta\">(<span class=\"file-type\">{$variables['file_type']}</span>, <span class=\"file-size\">{$variables['file_size']}</span>)</span>",
];
}
else {
$file_title = $variables['link'];
$variables['link'] = [
'#markup' => "{$file_title} <span class=\"file-meta\">(<span class=\"file-type\">{$variables['file_type']}</span>, <span class=\"file-size\">{$variables['file_size']}</span>)</span>",
];
}
}
/**
* Implements hook_views_pre_render().
*/
function localgov_base_views_pre_render(ViewExecutable $view) {
if ($view->storage->id() == 'localgov_sitewide_search') {
$view->element['#attached']['library'][] = 'localgov_base/sitewide-search';
}
}
/**
* Implements hook_preprocess_container().
*/
function localgov_base_preprocess_container(&$variables) {
// Randomize form container IDs for accessibility.
// See https://www.drupal.org/project/drupal/issues/1852090
if (isset($variables['element']['#id'])) {
$id = $variables['element']['#id'];
if ($id == 'edit-actions') {
$id .= '--' . Crypt::randomBytesBase64(8);
}
$variables['attributes']['id'] = $id;
$variables['attributes']['data-drupal-selector'] = $id;
$variables['element']['#attributes']['data-drupal-selector'] = $id;
$variables['element']['#id'] = $id;
}
}
/**
* Implements hook_form_FORM_ID_alter().
*/
function localgov_base_form_preview_link_entity_form_alter(&$form, $form_state, $form_id) {
$form['#attached']['library'][''] = 'localgov_base/preview-link';
}