Club Drupal

<?php

/**

 * @file

 * Colorbox theme functions.

 */

/**

 * Returns HTML for an Colorbox image field formatter.

 *

 * @param array $variables

 *   An associative array containing:

 *   - item: An array of image data.

 *   - image_style: An optional image style.

 *   - path: An array containing the link 'path' and link 'options'.

 *

 * @return string

 *   An HTML string representing the themed output.

 *

 * @ingroup themeable

 */

function theme_colorbox_image_formatter($variables) {

  static $gallery_token = NULL;

  $item = $variables['item'];

  $entity_type = $variables['entity_type'];

  $entity = $variables['entity'];

  $field = $variables['field'];

  $settings = $variables['display_settings'];

  $image = array(

    'path' => $item['uri'],

    'alt' => isset($item['alt']) ? $item['alt'] : '',

    'title' => isset($item['title']) ? $item['title'] : '',

    'style_name' => $settings['colorbox_node_style'],

  );

  if ($variables['delta'] == 0 && !empty($settings['colorbox_node_style_first'])) {

    $image['style_name'] = $settings['colorbox_node_style_first'];

  }

  if (isset($item['width']) && isset($item['height'])) {

    $image['width'] = $item['width'];

    $image['height'] = $item['height'];

  }

  if (isset($item['attributes'])) {

    $image['attributes'] = $item['attributes'];

  }

  // Allow image attributes to be overridden.

  if (isset($variables['item']['override']['attributes'])) {

    foreach (array('width', 'height', 'alt', 'title') as $key) {

      if (isset($variables['item']['override']['attributes'][$key])) {

        $image[$key] = $variables['item']['override']['attributes'][$key];

        unset($variables['item']['override']['attributes'][$key]);

      }

    }

    if (isset($image['attributes'])) {

      $image['attributes'] = $variables['item']['override']['attributes'] + $image['attributes'];

    }

    else {

      $image['attributes'] = $variables['item']['override']['attributes'];

    }

  }

  $entity_title = entity_label($entity_type, $entity);

  switch ($settings['colorbox_caption']) {

     case 'auto':

      // If the title is empty use alt or the entity title in that order.

      if (!empty($image['title'])) {

        $caption = $image['title'];

      }

      elseif (!empty($image['alt'])) {

        $caption = $image['alt'];

      }

      elseif (!empty($entity_title)) {

        $caption = $entity_title;

      }

      else {

        $caption = '';

      }

      break;

    case 'title':

      $caption = $image['title'];

      break;

    case 'alt':

      $caption = $image['alt'];

      break;

    case 'node_title':

      $caption = $entity_title;

      break;

    case 'custom':

      $caption = token_replace($settings['colorbox_caption_custom'], array($entity_type => $entity, 'file' => (object) $item), array('clear' => TRUE));

      break;

    default:

      $caption = '';

  }

  // Shorten the caption for the example styles or when caption shortening is active.

  $colorbox_style = variable_get('colorbox_style', 'default');

  $trim_length = variable_get('colorbox_caption_trim_length', 75);

  if (((strpos($colorbox_style, 'colorbox/example') !== FALSE) || variable_get('colorbox_caption_trim', 0)) && (drupal_strlen($caption) > $trim_length)) {

    $caption = drupal_substr($caption, 0, $trim_length - 5) . '...';

  }

  // Build the gallery id.

  list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);

  $entity_id = !empty($id) ? $entity_type . '-' . $id : 'entity-id';

  switch ($settings['colorbox_gallery']) {

    case 'post':

      $gallery_id = 'gallery-' . $entity_id;

      break;

    case 'page':

      $gallery_id = 'gallery-all';

      break;

    case 'field_post':

      $gallery_id = 'gallery-' . $entity_id . '-' . $field['field_name'];

      break;

    case 'field_page':

      $gallery_id = 'gallery-' . $field['field_name'];

      break;

    case 'custom':

      $gallery_id = $settings['colorbox_gallery_custom'];

      break;

    default:

      $gallery_id = '';

  }

  // If gallery id is not empty add unique per-request token to avoid images being added manually to galleries.

  if (!empty($gallery_id) && variable_get('colorbox_unique_token', 1)) {

    // Check if gallery token has already been set, we need to reuse the token for the whole request.

    if (is_null($gallery_token)) {

      // We use a short token since randomness is not critical.

      $gallery_token = drupal_random_key(8);

    }

    $gallery_id = $gallery_id . '-' . $gallery_token;

  }

  if ($style_name = $settings['colorbox_image_style']) {

    $path = image_style_url($style_name, $image['path']);

  }

  else {

    $path = file_create_url($image['path']);

  }

  return theme('colorbox_imagefield', array('image' => $image, 'path' => $path, 'title' => $caption, 'gid' => $gallery_id));

}

/**

 * Returns HTML for an image using a specific Colorbox image style.

 *

 * @param array $variables

 *   An associative array containing:

 *   - image: image item as array.

 *   - path: The path of the image that should be displayed in the Colorbox.

 *   - title: The title text that will be used as a caption in the Colorbox.

 *   - gid: Gallery id for Colorbox image grouping.

 *

 * @return string

 *   An HTML string containing a link to the given path.

 *

 * @ingroup themeable

 */

function theme_colorbox_imagefield($variables) {

  $class = array('colorbox');

  if ($variables['image']['style_name'] == 'hide') {

    $image = '';

    $class[] = 'js-hide';

  }

  elseif (!empty($variables['image']['style_name'])) {

    $image = theme('image_style', $variables['image']);

  }

  else {

    $image = theme('image', $variables['image']);

  }

  $options = drupal_parse_url($variables['path']);

  $options += array(

    'html' => TRUE,

    'attributes' => array(

      'title' => $variables['title'],

      'class' => $class,

      'data-colorbox-gallery' => $variables['gid'],

    ),

  );

  return l($image, $options['path'], $options);

}

/**

 * Preprocess variables for the colorbox-insert-image.tpl.php file.

 *

 * @param array $variables

 */

function template_preprocess_colorbox_insert_image(&$variables) {

  $item = $variables['item'];

  $variables['file'] = file_load($item['fid']);

  $variables['style_name'] = $item['style_name'];

  $variables['width'] = isset($item['width']) ? $item['width'] : NULL;

  $variables['height'] = isset($item['height']) ? $item['height'] : NULL;

  // Determine dimensions of the image after the image style transformations.

  image_style_transform_dimensions($variables['style_name'], $variables);

  $class = array();

  if (!empty($variables['widget']['settings']['insert_class'])) {

    $class = explode(' ', $variables['widget']['settings']['insert_class']);

  }

  $class[] = 'image-' . $variables['style_name'];

  foreach ($class as $key => $value) {

    $class[$key] = drupal_html_class($value);

  }

  $variables['class'] = implode(' ', $class);

  $variables['uri'] = image_style_path($variables['style_name'], $variables['file']->uri);

  $absolute = isset($variables['widget']['settings']['insert_absolute']) ? $variables['widget']['settings']['insert_absolute'] : NULL;

  $variables['url'] = insert_create_url($variables['uri'], $absolute, variable_get('clean_url'));

  // http://drupal.org/node/1923336

  if (function_exists('image_style_path_token')) {

    $token_query = array(IMAGE_DERIVATIVE_TOKEN => image_style_path_token($variables['style_name'], $variables['file']->uri));

    $variables['url'] .= (strpos($variables['url'], '?') !== FALSE ? '&' : '?') . drupal_http_build_query($token_query);

  }

  if ($style_name = variable_get('colorbox_image_style', '')) {

    $variables['path'] = image_style_url($style_name, $variables['file']->uri);

  }

  else {

    $variables['path'] = file_create_url($variables['file']->uri);

  }

  $variables['gallery_id'] = '';

  switch (variable_get('colorbox_insert_gallery', 0)) {

    case 0:

    case 1:

    case 2:

      $variables['gallery_id'] = 'gallery-all';

      break;

    case 3:

      $variables['gallery_id'] = '';

      break;

  }

}