For more information about this repository, visit the project page at https://www.drupal.org/project/bibcite_footnotes
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<?php
/**
* @file
* Contains bibcite_footnotes.module.
*/
use Drupal\Core\Routing\RouteMatchInterface;
/**
* Implements hook_help().
*/
function bibcite_footnotes_help($route_name, RouteMatchInterface $route_match) {
switch ($route_name) {
// Main module help for the bibcite_footnotes module.
case 'help.page.bibcite_footnotes':
$output = '';
$output .= '<h3>' . t('About') . '</h3>';
$output .= '<p>' . t('Inline footnote links for BibCite References') . '</p>';
return $output;
default:
}
}
/**
* Implements hook_theme().
*/
function bibcite_footnotes_theme() {
return [
'bibcite_footnotes' => [
'render element' => 'children',
],
];
}
function bibcite_footnotes_theme_registry_alter(&$theme_registry) {
$theme_registry['footnote_list']['function'] = 'bibcite_footnotes_theme_footnote_list';
}
function bibcite_footnotes_theme_footnote_list($footnotes) {
// @todo: change this ugly array for arguments in the function.
$footnotes = $footnotes['footnotes']['#footnotes'];
$str = '<ul class="footnotes">';
// Drupal 7 requires we use "render element" which just introduces a wrapper
// around the old array.
// $footnotes = $footnotes['footnotes'];
// loop through the footnotes.
$view_builder = \Drupal::entityTypeManager()->getViewBuilder('bibcite_reference');
foreach ($footnotes as $fn) {
if (!is_array($fn['ref_id'])) {
// Output normal footnote.
$str .= '<li class="footnote" id="' . $fn['fn_id'] . '"><a class="footnote-label" href="#' . $fn['ref_id'] . '">' . $fn['value'] . '.</a> ';
preg_match('/\[bibcite_reference:(\d*)\]/', $fn['text'], $matches);
$reference_entity_id = $matches[1];
if (!empty($reference_entity_id)) {
$reference_storage = \Drupal::entityTypeManager()
->getStorage('bibcite_reference')
->load($reference_entity_id);
$build = $view_builder->view($reference_storage, 'citation');
$render = render($build);
$str .= $render . "</li>\n";
}
else {
$str .= $fn['text'] . "</li>\n";
}
}
else {
// Output footnote that has more than one reference to it in the body.
// The only difference is to insert backlinks to all references.
// Helper: we need to enumerate a, b, c...
$abc = str_split("abcdefghijklmnopqrstuvwxyz");
$i = 0;
$str .= '<li class="footnote" id="' . $fn['fn_id'] . '"><a href="#' . $fn['ref_id'][0] . '" class="footnote-label">' . $fn['value'] . '.</a> ';
foreach ($fn['ref_id'] as $ref) {
$str .= '<a class="footnote-multi" href="#' . $ref . '">' . $abc[$i] . '.</a> ';
$i++;
}
$str .= $fn['text'] . "</li>\n";
}
}
$str .= "</ul>\nThat's all, folks";
return $str;
}