/**
* Add term/default image to blog/archive pages. Use:
* add_action( 'genesis_entry_content', 'display_featured_image_genesis_add_archive_thumbnails', 5 );
* @return image If a post doesn't have its own thumbnail, you can use this function to add one to archive pages.
*
* @since 2.1.0
*/
function display_featured_image_genesis_add_archive_thumbnails()
{
$show_thumbs = genesis_get_option('content_archive_thumbnail');
if (is_singular() || is_admin() || is_404() || !$show_thumbs) {
return;
}
$args = array('post_mime_type' => 'image', 'post_parent' => get_the_ID(), 'post_type' => 'attachment');
$attached_images = get_children($args);
if (has_post_thumbnail() || $attached_images) {
return;
}
$image_id = display_featured_image_genesis_get_term_image_id();
if (empty($image_id)) {
$image_id = display_featured_image_genesis_get_cpt_image_id();
if (empty($image_id)) {
$image_id = display_featured_image_genesis_get_default_image_id();
}
}
if (empty($image_id)) {
return;
}
$image = genesis_get_image(array('fallback' => apply_filters('display_featured_image_genesis_fallback_archive_thumbnail', $image_id), 'size' => genesis_get_option('image_size'), 'attr' => genesis_parse_attr('entry-image', array('alt' => get_the_title())), 'context' => 'archive'));
$permalink = get_permalink();
printf('<a href="%1$s" aria-hidden="true">%2$s</a>', esc_url($permalink), wp_kses_post($image));
}
/**
* Check the post content for the featured image. If it's there (full size), reset the featured image to a fallback.
* @param $image_id
*
* @return string
* @since 2.5.0
*/
static function singular_reset_image($image_id)
{
$fullsize = wp_get_attachment_image_src($image_id, 'full');
$post = get_post(get_the_ID());
$item_content = strpos($post->post_content, 'src="' . $fullsize[0]);
if (false === $item_content) {
return $image_id;
}
$term_image = display_featured_image_genesis_get_term_image_id();
$default_image = display_featured_image_genesis_get_default_image_id();
// reset backstretch image source to term image if it exists and the featured image is being used in content.
if ($term_image) {
$image_id = $term_image;
} elseif ($default_image) {
// else, reset backstretch image source to fallback.
$image_id = $default_image;
}
return $image_id;
}
/**
* retrieve image ID for output
* @param string $image_id variable, ID of featured image
*
* @since 2.2.1
*/
public static function set_image_id($image_id = '')
{
$frontpage = get_option('show_on_front');
// either 'posts' or 'page'
$postspage = get_option('page_for_posts');
$displaysetting = get_option('displayfeaturedimagegenesis');
$postspage_image = get_post_thumbnail_id($postspage);
$fallback = $displaysetting['default'];
$medium = (int) get_option('medium_size_w');
$fallback_id = displayfeaturedimagegenesis_check_image_id($fallback);
/**
* create a filter to use the fallback image
* @var filter
* @since 2.0.0 (deprecated old use_fallback_image function from 1.2.2)
*/
$use_fallback = apply_filters('display_featured_image_genesis_use_default', array());
// set here with fallback preemptively, if it exists
if (!empty($fallback)) {
$image_id = $fallback_id;
if (in_array(get_post_type(), $use_fallback)) {
return (int) $image_id;
}
}
// outlier: if it's a home page with a static front page, and there is a featured image set on the home page
// also provisionally sets featured image for posts, similar to CPT archives
if (is_home() && 'page' === $frontpage && !empty($postspage_image) || 'post' === get_post_type()) {
$image_id = $postspage_image ? $postspage_image : $image_id;
}
$object = get_queried_object();
// singular or archive CPT
if ($object && is_main_query() && !is_admin()) {
$post_type = '';
if ($object->name) {
// results in post type on cpt archive
$post_type = $object->name;
} elseif ($object->taxonomy) {
// on a tax/term/category
$tax_object = get_taxonomy($object->taxonomy);
$post_type = $tax_object->object_type[0];
} elseif ($object->post_type) {
// on singular
$post_type = $object->post_type;
}
if (!empty($displaysetting['post_type'][$post_type])) {
$image_id = displayfeaturedimagegenesis_check_image_id($displaysetting['post_type'][$post_type]);
/**
* use the custom post type featured image
*
* @since 2.2.1
*/
$use_cpt = apply_filters('displayfeaturedimagegenesis_use_post_type_image', array());
if (in_array(get_post_type(), $use_cpt)) {
return (int) $image_id;
}
}
}
if (is_author()) {
$image_id = get_the_author_meta('displayfeaturedimagegenesis', (int) get_query_var('author'));
}
// taxonomy
if (is_category() || is_tag() || is_tax()) {
$t_id = $object->term_id;
$term_meta = get_option("displayfeaturedimagegenesis_{$t_id}");
// if there is a term image
if (!empty($term_meta['term_image'])) {
$image_id = displayfeaturedimagegenesis_check_image_id($term_meta['term_image']);
}
}
// any singular post/page/CPT
if (is_singular()) {
$term_image = display_featured_image_genesis_get_term_image_id();
if (!empty($term_image)) {
$image_id = $term_image;
/**
* create filter to use taxonomy image if single post doesn't have a thumbnail, but one of its terms does.
* @var filter
*/
$use_tax_image = apply_filters('display_featured_image_genesis_use_taxonomy', array());
if (in_array(get_post_type(), $use_tax_image)) {
return (int) $image_id;
}
}
$thumb_metadata = wp_get_attachment_metadata(get_post_thumbnail_id(get_the_ID()));
// needed only for the next line
$width = $thumb_metadata ? $thumb_metadata['width'] : '';
if (has_post_thumbnail() && $width >= $medium) {
$image_id = get_post_thumbnail_id(get_the_ID());
}
}
/**
* filter to use a different image id
* @var $image_id
*
* @since 2.2.0
*/
$image_id = apply_filters('display_featured_image_genesis_image_id', $image_id);
// make sure the image id is an integer
$image_id = is_numeric($image_id) ? (int) $image_id : '';
return $image_id;
}
/**
* If there is no image to use for the post thumbnail in archives,
* optionally use the term or post type image as a fallback instead.
*
* @param $defaults
*
* @return mixed
* @since 2.5.0
*/
public function change_thumbnail_fallback($defaults)
{
if (!isset($this->setting['thumbnails']) || !$this->setting['thumbnails']) {
return $defaults;
}
remove_action('genesis_entry_content', 'display_featured_image_genesis_add_archive_thumbnails', 5);
$args = array('post_mime_type' => 'image', 'post_parent' => get_the_ID(), 'post_type' => 'attachment');
$attached_images = get_children($args);
if ($attached_images) {
return $defaults;
}
$image_id = display_featured_image_genesis_get_term_image_id();
if (empty($image_id)) {
$image_id = display_featured_image_genesis_get_cpt_image_id();
}
if ($image_id) {
$defaults['fallback'] = $image_id;
}
return $defaults;
}
