mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-07-13 19:46:06 +09:00
Robin Cornett
200 lines
6.4 KiB
PHP
200 lines
6.4 KiB
PHP
<?php
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/**
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* @package DisplayFeaturedImageGenesis
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* @author Robin Cornett <hello@robincornett.com>
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* @license GPL-2.0+
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* @link http://robincornett.com
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* @copyright 2014 Robin Cornett Creative, LLC
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*/
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class Display_Featured_Image_Genesis_Output {
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/**
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* set parameters for scripts, etc. to run.
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*
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* @since 1.1.3
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*/
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public function manage_output() {
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if ( in_array( get_post_type(), $this->get_skipped_posttypes() ) ) {
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return;
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}
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elseif ( is_home() || is_singular() || is_post_type_archive() ) {
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add_action( 'wp_enqueue_scripts', array( $this, 'load_scripts' ) );
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add_filter( 'body_class', array( $this, 'add_body_class' ) );
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}
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}
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/**
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* set and retreive variables for the featured image.
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* @return $item
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*
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* @since 1.1.0
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*/
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protected function get_image_variables() {
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$item = new stdClass();
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global $post;
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$fallback = get_option( 'displayfeaturedimage_default' );
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$postspage = get_option( 'page_for_posts' );
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$postspage_image = get_post_thumbnail_id( $postspage );
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// Set Featured Image Source
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if ( is_home() && !empty( $postspage_image ) ) {
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$item->original = wp_get_attachment_image_src( get_post_thumbnail_id( $postspage ), 'original' );
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}
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elseif ( !empty( $fallback ) && ( ! has_post_thumbnail() || is_post_type_archive() ) ) {
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$fallback_id = $this->get_image_id( $fallback );
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$item->original = wp_get_attachment_image_src( $fallback_id, 'original' );
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}
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else {
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$item->original = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'original' );
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}
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// Set Post/Page Title
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if ( is_home() ) {
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$item->title = get_post( $postspage )->post_title;
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}
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elseif ( is_post_type_archive() ) {
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$item->title = '';
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}
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else {
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$item->title = get_the_title();
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}
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$item->large = get_option( 'large_size_w' );
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$item->medium = get_option( 'medium_size_w' );
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$item->reduce = get_option( 'displayfeaturedimage_less_header', 0 );
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$item->content = strpos( $post->post_content, $item->original[0] );
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return $item;
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}
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/**
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* skip certain post types
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* @return filter creates a new filter for themes/plugins to use to skip certain post types
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*
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* @since 1.0.1
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*/
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public function get_skipped_posttypes() {
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return apply_filters( 'display_featured_image_genesis_skipped_posttypes', array( 'attachment', 'revision', 'nav_menu_item' ) );
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}
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/**
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* enqueue plugin styles and scripts.
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* @return enqueue
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*
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* @since 1.0.0
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*/
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public function load_scripts() {
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$item = $this->get_image_variables();
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if ( ( !empty( $item->original ) && $item->content === false ) || is_home() ) {
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wp_enqueue_style( 'displayfeaturedimage-style', plugins_url( 'includes/css/display-featured-image-genesis.css', dirname( __FILE__ ) ), array(), 1.0 );
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if ( ( ( $item->original[1] ) > $item->large ) ) {
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wp_enqueue_script( 'displayfeaturedimage-backstretch', plugins_url( '/includes/js/backstretch.js', dirname( __FILE__ ) ), array( 'jquery' ), '1.0.0' );
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wp_enqueue_script( 'displayfeaturedimage-backstretch-set', plugins_url( '/includes/js/backstretch-set.js', dirname( __FILE__ ) ), array( 'jquery', 'displayfeaturedimage-backstretch' ), '1.0.0' );
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wp_localize_script( 'displayfeaturedimage-backstretch-set', 'BackStretchVars', array(
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'src' => $item->original[0],
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'height' => esc_attr( $item->reduce )
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));
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add_action( 'genesis_after_header', array( $this, 'do_backstretch_image_title' ) );
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}
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elseif ( ( $item->original[1] <= $item->large ) && ( $item->original[1] > $item->medium ) ) {
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add_action( 'genesis_before_entry', array( $this, 'do_large_image' ) ); // HTML5
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add_action( 'genesis_before_post', array( $this, 'do_large_image' ) ); // XHTML
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}
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}
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}
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/**
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* set body class if featured images are displayed using the plugin
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* @param filter $classes body_class
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*
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* @since 1.0.0
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*/
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public function add_body_class( $classes ) {
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global $post;
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$item = $this->get_image_variables();
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if ( !empty( $item->original ) && $item->content === false ) {
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if ( $item->original[1] > $item->large ) {
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$classes[] = 'has-leader';
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}
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elseif ( ( $item->original[1] <= $item->large ) && ( $item->original[1] > $item->medium ) ) {
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$classes[] = 'large-featured';
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}
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}
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return $classes;
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}
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/**
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* backstretch image title (for images which are larger than Media Settings > Large )
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* @return image
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*
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* @since 1.0.0
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*/
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public function do_backstretch_image_title() {
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$item = $this->get_image_variables();
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if ( ! is_home() && ! is_post_type_archive() ) {
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remove_action( 'genesis_entry_header', 'genesis_do_post_title' ); // HTML5
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remove_action( 'genesis_post_title', 'genesis_do_post_title' ); // XHTML
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}
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echo '<div class="big-leader"><div class="wrap">';
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echo '<h1 class="entry-title">' . $item->title . '</h1>';
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echo '</div></div>';
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}
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/**
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* Large image, centered above content
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* @return image
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*
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* @since 1.0.0
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*/
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public function do_large_image() {
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global $post;
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echo get_the_post_thumbnail( $post->ID, 'large', array( 'class' => 'aligncenter featured', 'alt' => the_title_attribute( 'echo=0' ) ) );
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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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protected 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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