Club Drupal

<?php

/**

 * @file

 * Stub file for "link" theme hook [pre]process functions.

 */

/**

 * Pre-processes variables for the "link" theme hook.

 *

 * See theme function for list of available variables.

 *

 * @see bootstrap_process_link()

 * @see theme_link()

 *

 * @ingroup theme_preprocess

 */

function bootstrap_preprocess_link(&$variables) {

  // Fill in missing defaults not provided by drupal_common_theme().

  $variables['options'] += array(

    'attributes' => array(),

    'html' => FALSE,

  );

  // Core is so backwards on this theme hook. It does not provide a proper

  // preprocess function or attributes array. Merge any passed attributes

  // (which take precedence over passed option attributes) into the options

  // attributes array.

  if (!empty($variables['attributes'])) {

    $variables['options']['attributes'] = drupal_array_merge_deep($variables['options']['attributes'], $variables['attributes']);

  }

  // Standardize "attributes" by referencing the attributes in options.

  $variables['attributes'] = &$variables['options']['attributes'];

  // Add the icon position class.

  if (!empty($variables['icon'])) {

    _bootstrap_add_class('icon-' . drupal_html_class($variables['icon_position'] === 'icon_only' ? 'only' : $variables['icon_position']), $variables);

  }

  // Remove any "href" attribute since it's manually added in theme_link().

  unset($variables['attributes']['href']);

}

/**

 * Processes variables for the "link" theme hook.

 *

 * See theme function for list of available variables.

 *

 * @see bootstrap_preprocess_link()

 * @see theme_link()

 *

 * @ingroup theme_process

 */

function bootstrap_process_link(&$variables) {

  // Render #icon and trim it (so it doesn't add underlines in whitespace).

  if (!empty($variables['icon']) && ($icon = trim(render($variables['icon'])))) {

    // Sanitize text, if necessary.

    $variables['text'] = !empty($variables['options']['html']) ? $variables['text'] : check_plain($variables['text']);

    // Override the HTML option so icon is printed.

    $variables['options']['html'] = TRUE;

    // Hide the link text, if necessary.

    if ($variables['icon_position'] === 'icon_only') {

      $variables['text'] = '<span class="sr-only">' . $variables['text'] . '</span>';

    }

    if ($variables['icon_position'] === 'after') {

      $variables['text'] .= $icon;

    }

    else {

      $variables['text'] = $icon . $variables['text'];

    }

  }

}