75 lines
3.9 KiB
Plaintext
75 lines
3.9 KiB
Plaintext
<?php
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/**
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* @file
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* Defines simple link field types.
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*/
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use Drupal\Component\Utility\String;
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use Symfony\Component\HttpFoundation\Request;
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/**
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* Implements hook_help().
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*/
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function link_help($route_name, Request $request) {
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switch ($route_name) {
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case 'help.page.link':
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$output = '';
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$output .= '<h3>' . t('About') . '</h3>';
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$output .= '<p>' . t('The Link module allows you to create fields that contain internal or external URLs and optional link text. See the <a href="!field">Field module help</a> and the <a href="!field_ui">Field UI help</a> pages for general information on fields and how to create and manage them. For more information, see the <a href="!link_documentation">online documentation for the Link module</a>.', array('!field' => \Drupal::url('help.page', array('name' => 'field')), '!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')), '!link_documentation' => 'https://drupal.org/documentation/modules/link')) . '</p>';
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$output .= '<h3>' . t('Uses') . '</h3>';
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$output .= '<dl>';
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$output .= '<dt>' . t('Managing and displaying link fields') . '</dt>';
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$output .= '<dd>' . t('The <em>settings</em> and the <em>display</em> of the link field can be configured separately. See the <a href="!field_ui">Field UI help</a> for more information on how to manage fields and their display.', array('!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')))) . '</dd>';
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$output .= '<dt>' . t('Adding link text') . '</dt>';
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$output .= '<dd>' . t('In the field settings you can define additional link text to be <em>optional</em> or <em>required</em> in any link field.') . '</dd>';
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$output .= '<dt>' . t('Displaying link text') . '</dt>';
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$output .= '<dd>' . t('If link text has been submitted for a URL, then by default this link text is displayed as a link to the URL. If you want to display both the link text <em>and</em> the URL, choose the appropriate link format from the drop-down menu in the <em>Manage display</em> page. If you only want to display the URL even if link text has been submitted, choose <em>Link</em> as the format, and then change its <em>Format settings</em> to display <em>URL only</em>.') . '</dd>';
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$output .= '<dt>' . t('Adding attributes to links') . '</dt>';
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$output .= '<dd>' . t('You can add attributes to links, by changing the <em>Format settings</em> in the <em>Manage display</em> page. Adding <em>rel="nofollow"</em> notifies search engines that links should not be followed.') . '</dd>';
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$output .= '<dt>' . t('Validating URLs') . '</dt>';
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$output .= '<dd>' . t('All links are validated after a link field is filled in. They can include anchors or query strings.') . '</dd>';
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$output .= '</dl>';
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return $output;
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}
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}
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/**
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* Implements hook_theme().
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*/
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function link_theme() {
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return array(
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'link_formatter_link_separate' => array(
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'variables' => array('title' => NULL, 'url_title' => NULL, 'url' => NULL),
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'template' => 'link-formatter-link-separate',
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),
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);
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}
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/**
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* Prepares variables for separated link field templates.
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*
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* This template outputs a separate title and link.
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*
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* Default template: link-formatter-link-separate.html.twig.
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*
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* @param array $variables
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* An associative array containing:
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* - title: (optional) A descriptive or alternate title for the link, which
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* may be different than the actual link text.
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* - url_title: The anchor text for the link.
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* - url: A \Drupal\Core\Url object.
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*/
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function template_preprocess_link_formatter_link_separate(&$variables) {
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if (!empty($variables['title'])) {
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$variables['title'] = String::checkPlain($variables['title']);
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}
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if (!$variables['url']->isExternal()) {
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$variables['link'] = \Drupal::linkGenerator()->generateFromUrl($variables['url_title'], $variables['url']);
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}
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else {
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$variables['link'] = l($variables['url_title'], $variables['url']->getPath(), $variables['url']->getOptions());
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}
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}
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