html_title.module in HTML Title 6

This module enables limited HTML to be used in node titles. It strips title markup from RSS feeds to eliminate unsightly markup in feed readers.

File

html_title.module

<?php

/**
 * @defgroup html_title HTML Title
 */

/**
 * @file
 * This module enables limited HTML to be used in node titles. It strips title
 * markup from RSS feeds to eliminate unsightly markup in feed readers.
 */

/**
 * Implementation of hook_menu()
 */
function html_title_menu() {
  $items['admin/settings/html_title'] = array(
    'title' => 'HTML Title settings',
    'description' => 'Configure HTML tags used in node titles.',
    'access arguments' => array(
      'administer site configuration',
    ),
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'html_title_admin_settings',
    ),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'html_title.admin.inc',
  );
  return $items;
}

/**
 * Implementation of hook_theme_registry_alter()
 */
function html_title_theme_registry_alter(&$theme_registry) {

  // Re-order search result pre-processing so ours always runs last
  if (module_exists('search') && is_array($theme_registry['search_result']['preprocess functions'])) {
    foreach ($theme_registry['search_result']['preprocess functions'] as $value) {
      if ($value != 'html_title_preprocess_search_result') {
        $callbacks[] = $value;
      }
    }
    $callbacks[] = 'html_title_preprocess_search_result';
    $theme_registry['search_result']['preprocess functions'] = $callbacks;
  }
}

/**
 * Implementation of hook_preprocess_page()
 */
function html_title_preprocess_page(&$vars) {
  if (array_key_exists('node', $vars)) {
    $elements = variable_get('html_title_allowed_elements', array(
      'em',
      'sub',
      'sup',
    ));

    // Reset title to allow safe HTML
    $vars['title'] = filter_xss($vars['node']->title, $elements);

    // Strip HTML from head title
    $vars['head_title'] = strip_tags($vars['node']->title);
    drupal_set_title($vars['head_title']);
  }
}

/**
 * Implementation of hook_preprocess_node()
 */
function html_title_preprocess_node(&$node) {
  if (isset($node['html_title_raw'])) {
    $elements = variable_get('html_title_allowed_elements', array(
      'em',
      'sub',
      'sup',
    ));
    $node['title'] = filter_xss($node['html_title_raw'], $elements);
  }
}

/**
 * Implementation of hook_preprocess_search_result()
 */
function html_title_preprocess_search_result(&$vars) {
  if (isset($vars['result']['title'])) {
    $elements = variable_get('html_title_allowed_elements', array(
      'em',
      'sub',
      'sup',
    ));
    $vars['title'] = filter_xss($vars['result']['title'], $elements);
  }
}

/**
 * Implementation of hook_nodeapi()
 */
function html_title_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'load':

      // Capture original title for use in hook_preprocess_node
      return array(
        'html_title_raw' => $node->title,
      );
      break;
    case 'rss item':

      // Strip html from titles
      $node->title = strip_tags($node->title);
      break;
    case 'view':

    // Strip html from titles for views feeds using 'node' rendering
    case 'alter':

      // Strip html from titles for views feeds using other rendering
      if ($node->build_mode == NODE_BUILD_RSS) {
        $node->title = strip_tags($node->title);
      }
      break;
  }
}

/**
* Implementation hook_views_api()
*/
function html_title_views_api() {
  return array(
    'api' => 2,
    'path' => drupal_get_path('module', 'html_title') . '/views',
  );
}

Functions

Name	Description
html_title_menu	Implementation of hook_menu()
html_title_nodeapi	Implementation of hook_nodeapi()
html_title_preprocess_node	Implementation of hook_preprocess_node()
html_title_preprocess_page	Implementation of hook_preprocess_page()
html_title_preprocess_search_result	Implementation of hook_preprocess_search_result()
html_title_theme_registry_alter	Implementation of hook_theme_registry_alter()
html_title_views_api	Implementation hook_views_api()