mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-06-05 15:08:20 +09:00
Robin Cornett
c5acb81938
needs checking to see what happens if there is no tax image, but there is a fallback image
245 lines
8.4 KiB
PHP
245 lines
8.4 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Common functions for plugin
|
|
*
|
|
* @package DisplayFeaturedImageGenesis
|
|
* @since 1.2.1
|
|
*/
|
|
class Display_Featured_Image_Genesis_Common {
|
|
|
|
/**
|
|
* current plugin version
|
|
* @var string
|
|
* @since 1.4.3
|
|
*/
|
|
public static $version = '1.5.0';
|
|
|
|
/**
|
|
* set and retreive variables for the featured image.
|
|
* @return $item
|
|
*
|
|
* @since 1.1.0
|
|
*/
|
|
public static function get_image_variables() {
|
|
|
|
$item = new stdClass();
|
|
global $post;
|
|
|
|
// variables internal to this function
|
|
$frontpage = get_option( 'show_on_front' ); // either 'posts' or 'page'
|
|
$postspage = get_option( 'page_for_posts' );
|
|
$displaysetting = get_option( 'displayfeaturedimagegenesis' );
|
|
$move_excerpts = $displaysetting['move_excerpts'];
|
|
$postspage_image = get_post_thumbnail_id( $postspage );
|
|
|
|
if ( is_singular() ) { // just checking for handling conditional variables set by width
|
|
$thumb_metadata = wp_get_attachment_metadata( get_post_thumbnail_id( $post->ID ) ); // needed only for the next line
|
|
$width = '';
|
|
if ( $thumb_metadata ) {
|
|
$width = $thumb_metadata['width'];
|
|
}
|
|
}
|
|
|
|
// sitewide variables used outside this function
|
|
$item->fallback = esc_attr( $displaysetting['default'] ); // url only
|
|
$item->fallback_id = self::get_image_id( $item->fallback ); // gets image id with attached metadata
|
|
$item->large = absint( get_option( 'large_size_w' ) );
|
|
$item->medium = absint( get_option( 'medium_size_w' ) );
|
|
$item->reduce = absint( $displaysetting['less_header'] );
|
|
|
|
// Set Featured Image source ID
|
|
$image_id = ''; // blank if nothing else
|
|
|
|
// set here with fallback preemptively, if it exists
|
|
if ( ! empty( $item->fallback ) ) {
|
|
$image_id = $item->fallback_id;
|
|
}
|
|
|
|
// if it's a home page with a static front page, and there is a featured image set on the home page
|
|
if ( is_home() && 'page' === $frontpage && ! empty( $postspage_image ) ) {
|
|
$image_id = $postspage_image;
|
|
}
|
|
// taxonomy
|
|
elseif ( is_category() || is_tax() ) {
|
|
$term = get_queried_object();
|
|
$t_id = $term->term_id;
|
|
$term_meta = get_option( "taxonomy_$t_id" );
|
|
$image_id = self::get_image_id( $term_meta['dfig_image'] );
|
|
}
|
|
// any singular post/page/CPT with either a post_thumbnail larger than medium size OR there is no $item->fallback
|
|
elseif ( is_singular() ) {
|
|
if ( ( $width > $item->medium /*|| empty( $item->fallback )*/ ) && ! in_array( get_post_type(), self::use_fallback_image() ) ) {
|
|
$image_id = get_post_thumbnail_id( $post->ID );
|
|
}
|
|
elseif ( ! has_post_thumbnail() ) {
|
|
$terms = get_taxonomies();
|
|
$args = array( 'fields' => 'ids', 'orderby' => 'term_group', 'order' => 'DESC' );
|
|
$terms = wp_get_object_terms( get_the_ID(), $terms, $args );
|
|
|
|
foreach ( $terms as $t_id ) {
|
|
$term_meta = get_option( "taxonomy_$t_id" );
|
|
$image_id = Display_Featured_Image_Genesis_Common::get_image_id( $term_meta['dfig_image'] );
|
|
}
|
|
}
|
|
}
|
|
|
|
//now actually set the backstretch image source, which includes some metadata
|
|
$metadata = wp_get_attachment_metadata( $image_id );
|
|
|
|
// turn Photon off so we can get the correct image
|
|
$photon_removed = '';
|
|
if ( class_exists( 'Jetpack' ) && Jetpack::is_module_active( 'photon' ) ) {
|
|
$photon_removed = remove_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ) );
|
|
}
|
|
|
|
$item->backstretch = wp_get_attachment_image_src( $image_id, 'displayfeaturedimage_backstretch' );
|
|
$item->width = '';
|
|
if ( ! empty( $item->backstretch ) ) {
|
|
$item->width = $metadata['width'];
|
|
}
|
|
|
|
// set a content variable so backstretch doesn't show if full size image exists in post.
|
|
$item->content = '';
|
|
// declare this last so that $item->backstretch is set.
|
|
if ( ! is_admin() && is_singular() ) {
|
|
$fullsize = wp_get_attachment_image_src( $image_id, 'original' );
|
|
$item->content = strpos( $post->post_content, 'src="' . $fullsize[0] );
|
|
// reset backstretch image source to fallback if it exists and the featured image is being used in content.
|
|
if ( ! empty( $item->fallback ) && false !== $item->content ) {
|
|
$item->backstretch = wp_get_attachment_image_src( $item->fallback_id, 'displayfeaturedimage_backstretch' );
|
|
$item->content = strpos( $post->post_content, 'src="' . $item->backstretch[0] );
|
|
}
|
|
}
|
|
|
|
// turn Photon back on
|
|
if ( $photon_removed ) {
|
|
add_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ), 10, 3 );
|
|
}
|
|
|
|
// Set Post/Page Title
|
|
$item->title = $item->description = '';
|
|
|
|
if ( is_singular() ) {
|
|
$item->title = get_the_title();
|
|
if ( has_excerpt() ) {
|
|
$item->description = get_the_excerpt();
|
|
}
|
|
}
|
|
elseif ( is_home() && 'page' === $frontpage ) {
|
|
$item->title = get_post( $postspage )->post_title;
|
|
$item->description = get_post( $postspage )->post_excerpt;
|
|
}
|
|
elseif ( is_category() || is_tag() || is_tax() ) {
|
|
$term = is_tax() ? get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) ) : get_queried_object();
|
|
if ( ! $term || ! isset( $term->meta ) ) {
|
|
return;
|
|
}
|
|
$item->title = $term->meta['headline'];
|
|
$item->description = $term->meta['intro_text'];
|
|
|
|
}
|
|
elseif ( is_author() ) {
|
|
$item->title = get_the_author_meta( 'headline', (int) get_query_var( 'author' ) );
|
|
$item->description = get_the_author_meta( 'intro_text', (int) get_query_var( 'author' ) );
|
|
}
|
|
elseif ( is_post_type_archive() && genesis_has_post_type_archive_support() && ! empty( $item->fallback ) ) {
|
|
$item->title = genesis_get_cpt_option( 'headline' );
|
|
$item->description = genesis_get_cpt_option( 'intro_text' );
|
|
}
|
|
|
|
return $item;
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Get the ID of each image dynamically.
|
|
*
|
|
* @since 1.2.0
|
|
*
|
|
* @author Philip Newcomer
|
|
* @link http://philipnewcomer.net/2012/11/get-the-attachment-id-from-an-image-url-in-wordpress/
|
|
*/
|
|
public static function get_image_id( $attachment_url ) {
|
|
global $wpdb;
|
|
$attachment_id = false;
|
|
|
|
// Get the upload directory paths
|
|
$upload_dir_paths = wp_upload_dir();
|
|
|
|
// Make sure the upload path base directory exists in the attachment URL, to verify that we're working with a media library image
|
|
if ( false !== strpos( $attachment_url, $upload_dir_paths['baseurl'] ) ) {
|
|
|
|
// If this is the URL of an auto-generated thumbnail, get the URL of the original image
|
|
$attachment_url = preg_replace( '(-\d{3,4}x\d{3,4}.)', '.', $attachment_url );
|
|
|
|
// Remove the upload path base directory from the attachment URL
|
|
$attachment_url = str_replace( $upload_dir_paths['baseurl'] . '/', '', $attachment_url );
|
|
|
|
// Finally, run a custom database query to get the attachment ID from the modified attachment URL
|
|
$attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT wposts.ID FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta WHERE wposts.ID = wpostmeta.post_id AND wpostmeta.meta_key = '_wp_attached_file' AND wpostmeta.meta_value = '%s' AND wposts.post_type = 'attachment'", $attachment_url ) );
|
|
|
|
}
|
|
|
|
return $attachment_id;
|
|
}
|
|
|
|
|
|
/**
|
|
* skip certain post types
|
|
* @return filter creates a new filter for themes/plugins to use to skip certain post types
|
|
*
|
|
* @since 1.0.1
|
|
*/
|
|
public static function get_skipped_posttypes() {
|
|
|
|
$displaysetting = get_option( 'displayfeaturedimagegenesis' );
|
|
$skip = $displaysetting['exclude_front'];
|
|
|
|
$post_types = array();
|
|
$post_types[] = 'attachment';
|
|
$post_types[] = 'revision';
|
|
$post_types[] = 'nav_menu_item';
|
|
if ( $skip ) $post_types[] = is_front_page();
|
|
|
|
return apply_filters( 'display_featured_image_genesis_skipped_posttypes', $post_types );
|
|
|
|
}
|
|
|
|
/**
|
|
* use fallback image as backstretch
|
|
* @return filter creates a new filter for themes/plugins to use to use the fallback image even if a large featured image is in place
|
|
*
|
|
* @since 1.2.0
|
|
*/
|
|
public static function use_fallback_image() {
|
|
|
|
$post_types = array();
|
|
$post_types[] = 'attachment';
|
|
$post_types[] = 'revision';
|
|
$post_types[] = 'nav_menu_item';
|
|
|
|
return apply_filters( 'display_featured_image_genesis_use_default', $post_types );
|
|
|
|
}
|
|
|
|
/**
|
|
* don't show excerpts even if they exist.
|
|
* @return filter creates a new filter for themes/plugins to omit the excerpt on a post type even if an excerpt exists.
|
|
*
|
|
* @since 1.3.0
|
|
*/
|
|
public static function omit_excerpt() {
|
|
|
|
$post_types = array();
|
|
$post_types[] = 'attachment';
|
|
$post_types[] = 'revision';
|
|
$post_types[] = 'nav_menu_item';
|
|
|
|
return apply_filters( 'display_featured_image_genesis_omit_excerpt', $post_types );
|
|
|
|
}
|
|
|
|
}
|