<?php

/**

 * @file

 * Administrative page callbacks for the HTML Purifier module.

 */

/**

 * Generate a form for configuring overall HTML Purifier settings.

 *

 * @ingroup forms

 * @see htmlpurifier_admin_settings_submit()

 */

function htmlpurifier_admin_settings($form, &$form_state) {

  $form['htmlpurifier_introduction'] = array(

    '#markup' => t('<p>This page contains global settings for all HTML Purifier enabled filters.  If you are looking for specific filter configuration options, check <a href="@format">the format configurations page</a> and select the specific format you would like to configure.</p>', array('@filter' => url('admin/config/content/formats'))),

  );

  $form['htmlpurifier_clear_cache'] = array(

    '#type' => 'submit',

    '#value' => t('Clear cache (Warning: Can result in performance degradation)'),

    '#submit' => array('_htmlpurifier_clear_cache')

  );

  $form = system_settings_form($form);

  $form['#submit'][] = 'htmlpurifier_admin_settings_submit';

  return $form;

}

/**

 * Submit handler for the HTML Purifier settings form.

 */

function htmlpurifier_admin_settings_submit($form, &$form_state) {

  // Resave all text formats so that the new cache settings for each format are

  // recorded.

  // TODO: There should be a better way to do this.

  foreach (filter_formats() as $format) {

    $format->filters = filter_list_format($format->format);

    foreach ($format->filters as &$filter) {

      $filter = (array) $filter;

    }

    filter_format_save($format);

  }

}