function views_rss_core_preprocess_channel_image in Views RSS 8.2

Same name and namespace in other branches

1. 8.3 modules/views_rss_core/views_rss_core.inc \views_rss_core_preprocess_channel_image()
2. 6.2 modules/views_rss_core/views_rss_core.inc \views_rss_core_preprocess_channel_image()
3. 7.2 modules/views_rss_core/views_rss_core.inc \views_rss_core_preprocess_channel_image()

Preprocess function for channel <image> element.

1 string reference to 'views_rss_core_preprocess_channel_image'

views_rss_core_views_rss_channel_elements in modules/views_rss_core/views_rss_core.module

Implements hook_views_rss_item_elements().

File

modules/views_rss_core/views_rss_core.inc, line 99

Preprocess functions for Views RSS: Core Elements module.

Code

function views_rss_core_preprocess_channel_image(&$variables) {

  // No value = no preprocessing.
  if (empty($variables['elements'][0]['value'])) {
    return;
  }
  $image_path = $variables['elements'][0]['value'];

  // Get value of channel <title> element from its preprocess function.
  views_rss_core_preprocess_channel_title($variables);
  $title = $variables['elements'][0]['value'];

  // Create subelements array.
  $variables['elements'][0]['value'] = array(
    // The image's url element identifies the URL of the image.
    'url' => file_create_url($image_path),
    // The image's title element SHOULD have the same text as the channel's
    // title element and be suitable for use as the alt attribute of the img
    // tag in an HTML rendering.
    'title' => $title,
    // The image's link element identifies the URL of the web site represented
    // by the image (not the feed URL).
    'link' => $GLOBALS['base_url'] . '/',
  );

  // Try to get image description from website's mission.
  if ($site_slogan = \Drupal::config('system.site')
    ->get('slogan')) {
    $variables['elements'][0]['value']['description'] = $site_slogan;
  }

  // Get image width and height.
  $image = Drupal::service('image.factory')
    ->get($image_path);
  if (!empty($image)) {
    $variables['elements'][0]['value']['width'] = $image
      ->getWidth();
    $variables['elements'][0]['value']['height'] = $image
      ->getHeight();
  }
}