mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-07-13 11:36:17 +09:00
Robin Cornett
f66959f4f5
added for Craig. Required going back to using actual item to determine width instead of using image metadata. Should still be OK with Photon but worth checking.
230 lines
8.0 KiB
PHP
230 lines
8.0 KiB
PHP
<?php
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/**
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* Common functions for plugin
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*
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* @package DisplayFeaturedImageGenesis
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* @since 1.2.1
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*/
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class Display_Featured_Image_Genesis_Common {
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/**
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* current plugin version
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* @var string
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* @since 1.4.3
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*/
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public static $version = '2.0.0';
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protected static $post_types;
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/**
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* set and retreive variables for the featured image.
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* @return $item
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*
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* @since 1.1.0
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*/
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public static function get_image_variables() {
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self::$post_types = array();
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$item = new stdClass();
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// variables internal to this function
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$frontpage = get_option( 'show_on_front' ); // either 'posts' or 'page'
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$postspage = get_option( 'page_for_posts' );
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$displaysetting = get_option( 'displayfeaturedimagegenesis' );
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$move_excerpts = $displaysetting['move_excerpts'];
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$postspage_image = get_post_thumbnail_id( $postspage );
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if ( is_singular() ) { // just checking for handling conditional variables set by width
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$thumb_metadata = wp_get_attachment_metadata( get_post_thumbnail_id( get_the_ID() ) ); // needed only for the next line
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$width = '';
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if ( $thumb_metadata ) {
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$width = $thumb_metadata['width'];
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}
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}
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// sitewide variables used outside this function
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$item->backstretch = '';
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$item->fallback = esc_attr( $displaysetting['default'] ); // url only
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$item->fallback_id = self::get_image_id( $item->fallback ); // gets image id with attached metadata
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$item->large = absint( get_option( 'large_size_w' ) );
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$item->medium = absint( get_option( 'medium_size_w' ) );
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$item->reduce = absint( $displaysetting['less_header'] );
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// Set Featured Image source ID
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$image_id = ''; // blank if nothing else
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/**
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* create a filter to use the fallback image
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* @var filter
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* @since 2.0.0 (deprecated old use_fallback_image function from 1.2.2)
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*/
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$use_fallback = apply_filters( 'display_featured_image_genesis_use_default', self::$post_types );
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// set here with fallback preemptively, if it exists
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if ( ! empty( $item->fallback ) ) {
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$image_id = $item->fallback_id;
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}
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$object = get_queried_object();
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// if it's a home page with a static front page, and there is a featured image set on the home page
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if ( is_home() && 'page' === $frontpage && ! empty( $postspage_image ) ) {
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$image_id = $postspage_image;
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}
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elseif ( is_post_type_archive() ) {
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$post_type = $object->name;
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if ( $displaysetting['post_type'][$post_type] ) {
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$image_id = self::get_image_id( $displaysetting['post_type'][$post_type] );
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}
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}
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// taxonomy
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elseif ( is_category() || is_tag() || is_tax() ) {
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$t_id = $object->term_id;
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$term_meta = get_option( "displayfeaturedimagegenesis_$t_id" );
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if ( $term_meta ) {
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$image_id = self::get_image_id( $term_meta['term_image'] );
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}
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}
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// any singular post/page/CPT or there is no $item->fallback
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elseif ( is_singular() && ! in_array( get_post_type(), $use_fallback ) ) {
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/**
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* create filter to use taxonomy image if single post doesn't have a thumbnail, but one of its terms does.
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* @var filter
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*/
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$use_tax_image = apply_filters( 'display_featured_image_genesis_use_taxonomy', self::$post_types );
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if ( has_post_thumbnail() && $width > $item->medium ) {
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$image_id = get_post_thumbnail_id( get_the_ID() );
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}
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elseif ( ! has_post_thumbnail() || in_array( get_post_type(), $use_tax_image ) ) {
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$taxonomies = get_taxonomies();
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$args = array( 'orderby' => 'count', 'order' => 'DESC' );
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$terms = wp_get_object_terms( get_the_ID(), $taxonomies, $args );
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foreach ( $terms as $term ) {
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$t_id = $term->term_id;
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$term_meta = get_option( "displayfeaturedimagegenesis_$t_id" );
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if ( $term_meta['term_image'] ) {
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$image_id = self::get_image_id( $term_meta['term_image'] );
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break;
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}
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}
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}
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}
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// turn Photon off so we can get the correct image
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$photon_removed = '';
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if ( class_exists( 'Jetpack' ) && Jetpack::is_module_active( 'photon' ) ) {
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$photon_removed = remove_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ) );
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}
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/**
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* create a filter for user to optionally force post types to use the large image instead of backstretch
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* @var filter
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*
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* @since 2.0.0
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*/
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$use_large_image = apply_filters( 'display_featured_image_genesis_use_large_image', self::$post_types );
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$image_size = 'displayfeaturedimage_backstretch';
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if ( in_array( get_post_type(), $use_large_image ) ) {
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$image_size = 'large';
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}
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$item->backstretch = wp_get_attachment_image_src( $image_id, $image_size );
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$item->width = '';
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if ( ! empty( $item->backstretch ) ) {
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$item->width = $item->backstretch[1];
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}
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// set a content variable so backstretch doesn't show if full size image exists in post.
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$item->content = '';
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// declare this last so that $item->backstretch is set.
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if ( ! is_admin() && is_singular() ) {
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$fullsize = wp_get_attachment_image_src( $image_id, 'original' );
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$post = get_post();
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$item->content = strpos( $post->post_content, 'src="' . $fullsize[0] );
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// reset backstretch image source to fallback if it exists and the featured image is being used in content.
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if ( ! empty( $item->fallback ) && false !== $item->content ) {
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$item->backstretch = wp_get_attachment_image_src( $item->fallback_id, $image_size );
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$item->content = strpos( $post->post_content, 'src="' . $item->backstretch[0] );
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}
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}
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// turn Photon back on
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if ( $photon_removed ) {
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add_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ), 10, 3 );
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}
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// Set Post/Page Title
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$item->title = $item->description = '';
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if ( is_singular() ) {
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$item->title = get_the_title();
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if ( has_excerpt() ) {
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$item->description = get_the_excerpt();
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}
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}
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elseif ( is_home() && 'page' === $frontpage ) {
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$item->title = get_post( $postspage )->post_title;
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$item->description = get_post( $postspage )->post_excerpt;
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}
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elseif ( is_category() || is_tag() || is_tax() ) {
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$term = is_tax() ? get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) ) : get_queried_object();
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if ( ! $term || ! isset( $term->meta ) ) {
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return;
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}
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$item->title = $term->meta['headline'];
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$item->description = $term->meta['intro_text'];
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}
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elseif ( is_author() ) {
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$item->title = get_the_author_meta( 'headline', (int) get_query_var( 'author' ) );
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$item->description = get_the_author_meta( 'intro_text', (int) get_query_var( 'author' ) );
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}
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elseif ( is_post_type_archive() && genesis_has_post_type_archive_support() && ! empty( $item->fallback ) ) {
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$item->title = genesis_get_cpt_option( 'headline' );
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$item->description = genesis_get_cpt_option( 'intro_text' );
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}
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return $item;
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}
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/**
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* Get the ID of each image dynamically.
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*
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* @since 1.2.0
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*
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* @author Philip Newcomer
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* @link http://philipnewcomer.net/2012/11/get-the-attachment-id-from-an-image-url-in-wordpress/
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*/
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public static function get_image_id( $attachment_url ) {
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global $wpdb;
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$attachment_id = false;
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// Get the upload directory paths
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$upload_dir_paths = wp_upload_dir();
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// Make sure the upload path base directory exists in the attachment URL, to verify that we're working with a media library image
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if ( false !== strpos( $attachment_url, $upload_dir_paths['baseurl'] ) ) {
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// If this is the URL of an auto-generated thumbnail, get the URL of the original image
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$attachment_url = preg_replace( '(-\d{3,4}x\d{3,4}.)', '.', $attachment_url );
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// Remove the upload path base directory from the attachment URL
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$attachment_url = str_replace( $upload_dir_paths['baseurl'] . '/', '', $attachment_url );
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// Finally, run a custom database query to get the attachment ID from the modified attachment URL
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$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 ) );
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}
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return $attachment_id;
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}
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}
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