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<?php
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/**
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* @file
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* Colorbox theme functions.
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*/
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/**
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* Returns HTML for an Colorbox image field formatter.
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*
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* @param array $variables
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* An associative array containing:
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* - item: An array of image data.
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* - image_style: An optional image style.
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* - path: An array containing the link 'path' and link 'options'.
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*
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* @return string
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* An HTML string representing the themed output.
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*
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* @ingroup themeable
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*/
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function theme_colorbox_image_formatter($variables) {
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static $gallery_token = NULL;
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$item = $variables['item'];
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$entity_type = $variables['entity_type'];
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$entity = $variables['entity'];
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$field = $variables['field'];
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$settings = $variables['display_settings'];
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$image = array(
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'path' => $item['uri'],
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'alt' => isset($item['alt']) ? $item['alt'] : '',
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'title' => isset($item['title']) ? $item['title'] : '',
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'style_name' => $settings['colorbox_node_style'],
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);
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if ($variables['delta'] == 0 && !empty($settings['colorbox_node_style_first'])) {
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$image['style_name'] = $settings['colorbox_node_style_first'];
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}
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if (isset($item['width']) && isset($item['height'])) {
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$image['width'] = $item['width'];
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$image['height'] = $item['height'];
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}
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if (isset($item['attributes'])) {
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$image['attributes'] = $item['attributes'];
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}
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// Allow image attributes to be overridden.
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if (isset($variables['item']['override']['attributes'])) {
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foreach (array('width', 'height', 'alt', 'title') as $key) {
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if (isset($variables['item']['override']['attributes'][$key])) {
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$image[$key] = $variables['item']['override']['attributes'][$key];
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unset($variables['item']['override']['attributes'][$key]);
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}
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}
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if (isset($image['attributes'])) {
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$image['attributes'] = $variables['item']['override']['attributes'] + $image['attributes'];
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}
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else {
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$image['attributes'] = $variables['item']['override']['attributes'];
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}
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}
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$entity_title = entity_label($entity_type, $entity);
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switch ($settings['colorbox_caption']) {
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case 'auto':
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// If the title is empty use alt or the entity title in that order.
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if (!empty($image['title'])) {
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$caption = $image['title'];
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}
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elseif (!empty($image['alt'])) {
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$caption = $image['alt'];
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}
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elseif (!empty($entity_title)) {
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$caption = $entity_title;
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}
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else {
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$caption = '';
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}
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break;
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case 'title':
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$caption = $image['title'];
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break;
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case 'alt':
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$caption = $image['alt'];
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break;
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case 'node_title':
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$caption = $entity_title;
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break;
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case 'custom':
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$caption = token_replace($settings['colorbox_caption_custom'], array($entity_type => $entity, 'file' => (object) $item), array('clear' => TRUE));
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break;
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default:
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$caption = '';
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}
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// Shorten the caption for the example styles or when caption shortening is active.
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$colorbox_style = variable_get('colorbox_style', 'default');
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$trim_length = variable_get('colorbox_caption_trim_length', 75);
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if (((strpos($colorbox_style, 'colorbox/example') !== FALSE) || variable_get('colorbox_caption_trim', 0)) && (drupal_strlen($caption) > $trim_length)) {
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$caption = drupal_substr($caption, 0, $trim_length - 5) . '...';
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}
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// Build the gallery id.
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list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
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$entity_id = !empty($id) ? $entity_type . '-' . $id : 'entity-id';
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switch ($settings['colorbox_gallery']) {
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case 'post':
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$gallery_id = 'gallery-' . $entity_id;
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break;
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case 'page':
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$gallery_id = 'gallery-all';
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break;
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case 'field_post':
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$gallery_id = 'gallery-' . $entity_id . '-' . $field['field_name'];
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break;
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case 'field_page':
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$gallery_id = 'gallery-' . $field['field_name'];
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break;
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case 'custom':
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$gallery_id = $settings['colorbox_gallery_custom'];
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break;
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default:
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$gallery_id = '';
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}
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// If gallery id is not empty add unique per-request token to avoid images being added manually to galleries.
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if (!empty($gallery_id) && variable_get('colorbox_unique_token', 1)) {
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// Check if gallery token has already been set, we need to reuse the token for the whole request.
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if (is_null($gallery_token)) {
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// We use a short token since randomness is not critical.
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$gallery_token = drupal_random_key(8);
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}
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$gallery_id = $gallery_id . '-' . $gallery_token;
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}
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if ($style_name = $settings['colorbox_image_style']) {
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$path = image_style_url($style_name, $image['path']);
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}
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else {
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$path = file_create_url($image['path']);
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}
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return theme('colorbox_imagefield', array('image' => $image, 'path' => $path, 'title' => $caption, 'gid' => $gallery_id));
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}
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/**
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* Returns HTML for an image using a specific Colorbox image style.
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*
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* @param array $variables
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* An associative array containing:
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* - image: image item as array.
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* - path: The path of the image that should be displayed in the Colorbox.
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* - title: The title text that will be used as a caption in the Colorbox.
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* - gid: Gallery id for Colorbox image grouping.
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*
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* @return string
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* An HTML string containing a link to the given path.
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*
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* @ingroup themeable
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*/
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function theme_colorbox_imagefield($variables) {
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$class = array('colorbox');
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if ($variables['image']['style_name'] == 'hide') {
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$image = '';
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$class[] = 'js-hide';
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}
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elseif (!empty($variables['image']['style_name'])) {
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$image = theme('image_style', $variables['image']);
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}
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else {
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$image = theme('image', $variables['image']);
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}
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$options = drupal_parse_url($variables['path']);
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$options += array(
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'html' => TRUE,
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'attributes' => array(
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'title' => $variables['title'],
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'class' => $class,
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'data-colorbox-gallery' => $variables['gid'],
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'data-cbox-img-attrs' => '{"title": "' . $variables['image']['title'] . '", "alt": "' . $variables['image']['alt'] . '"}',
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),
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);
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return l($image, $options['path'], $options);
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}
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/**
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* Preprocess variables for the colorbox-insert-image.tpl.php file.
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*
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* @param array $variables
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*/
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function template_preprocess_colorbox_insert_image(&$variables) {
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$item = $variables['item'];
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$variables['file'] = file_load($item['fid']);
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$variables['style_name'] = $item['style_name'];
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$variables['width'] = isset($item['width']) ? $item['width'] : NULL;
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$variables['height'] = isset($item['height']) ? $item['height'] : NULL;
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// Determine dimensions of the image after the image style transformations.
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image_style_transform_dimensions($variables['style_name'], $variables);
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$class = array();
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if (!empty($variables['widget']['settings']['insert_class'])) {
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$class = explode(' ', $variables['widget']['settings']['insert_class']);
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}
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$class[] = 'image-' . $variables['style_name'];
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foreach ($class as $key => $value) {
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$class[$key] = drupal_html_class($value);
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}
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$variables['class'] = implode(' ', $class);
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$variables['uri'] = image_style_path($variables['style_name'], $variables['file']->uri);
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$absolute = isset($variables['widget']['settings']['insert_absolute']) ? $variables['widget']['settings']['insert_absolute'] : NULL;
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$variables['url'] = insert_create_url($variables['uri'], $absolute, variable_get('clean_url'));
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// http://drupal.org/node/1923336
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if (function_exists('image_style_path_token')) {
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$token_query = array(IMAGE_DERIVATIVE_TOKEN => image_style_path_token($variables['style_name'], $variables['file']->uri));
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$variables['url'] .= (strpos($variables['url'], '?') !== FALSE ? '&' : '?') . drupal_http_build_query($token_query);
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}
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if ($style_name = variable_get('colorbox_image_style', '')) {
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$variables['path'] = image_style_url($style_name, $variables['file']->uri);
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}
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else {
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$variables['path'] = file_create_url($variables['file']->uri);
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}
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$variables['gallery_id'] = '';
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switch (variable_get('colorbox_insert_gallery', 0)) {
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case 0:
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case 1:
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case 2:
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$variables['gallery_id'] = 'gallery-all';
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break;
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case 3:
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$variables['gallery_id'] = '';
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break;
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}
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}
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