mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-06-05 15:08:20 +09:00
Robin Cornett
514 lines
15 KiB
PHP
514 lines
15 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 https://robincornett.com
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* @copyright 2014-2019 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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* @var Display_Featured_Image_Genesis_Description $description
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*/
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protected $description;
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/**
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* @var
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*/
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protected $setting;
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/**
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* @var
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*/
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protected $item;
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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 ( $this->quit_now() ) {
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return;
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}
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add_filter( 'jetpack_photon_override_image_downsize', '__return_true' );
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add_action( 'wp_enqueue_scripts', array( $this, 'load_scripts' ) );
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}
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/**
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* enqueue plugin styles and scripts.
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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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if ( ! $this->can_do_things() ) {
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return;
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}
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include_once 'class-displayfeaturedimagegenesis-enqueue.php';
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$enqueue = new DisplayFeaturedImageGenesisEnqueue( $this->get_setting(), $this->get_item() );
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$enqueue->enqueue_style();
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add_filter( 'body_class', array( $this, 'add_body_class' ) );
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$large = $this->get_minimum_backstretch_width();
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$item = $this->get_item();
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$width = absint( $item->backstretch[1] );
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/**
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* Creates display_featured_image_genesis_force_backstretch filter to check
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* whether get_post_type array should force the backstretch effect for this post type.
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* @uses is_in_array()
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*/
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if ( $width > $large || displayfeaturedimagegenesis_get()->is_in_array( 'force_backstretch' ) ) {
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$scriptless = displayfeaturedimagegenesis_get_setting( 'scriptless' );
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if ( ! $scriptless ) {
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$enqueue->enqueue_scripts();
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}
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$this->launch_backstretch_image();
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} else {
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$this->do_large_image_things();
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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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*
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* @param $classes array
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*
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* @return array
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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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if ( ! $this->can_do_things() ) {
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return $classes;
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}
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$large = $this->get_minimum_backstretch_width();
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$item = $this->get_item();
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$width = (int) $item->backstretch[1];
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if ( false === $item->content || ! is_singular() ) {
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if ( $width > $large ) {
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$classes[] = 'has-leader';
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} elseif ( $width <= $large ) {
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$classes[] = 'large-featured';
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}
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}
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return apply_filters( 'display_featured_image_genesis_classes', $classes );
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}
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/**
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* Actually output the backstretch/banner image and title markup at the designated hook.
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* @since 3.1.0
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*/
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protected function launch_backstretch_image() {
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$location = $this->get_hooks();
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add_action( esc_attr( $location['backstretch']['hook'] ), array( $this, 'do_backstretch_image_title' ), $location['backstretch']['priority'] );
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}
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/**
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* backstretch image title ( for images which are larger than Media Settings > Large )
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*
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* @since 1.0.0
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*/
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public function do_backstretch_image_title() {
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$description = $this->get_description_class();
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if ( $this->move_title() ) {
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$description->remove_title_descriptions();
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}
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$class = 'big-leader';
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$scriptless = displayfeaturedimagegenesis_get_setting( 'scriptless' );
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if ( $scriptless ) {
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$class .= ' big-leader--scriptless';
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}
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echo '<div class="' . esc_attr( $class ) . '">';
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$image = $this->get_banner_image();
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if ( $scriptless ) {
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// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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echo $image;
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}
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echo '<div class="wrap">';
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do_action( 'display_featured_image_genesis_before_title' );
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if ( $this->move_title() ) {
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if ( $this->move_excerpts() ) {
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$description->do_title_descriptions();
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} else {
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$item = $this->get_item();
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if ( ! empty( $item->title ) && $this->do_the_title() ) {
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echo $this->do_the_title();
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}
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add_action( 'genesis_before_loop', array( $description, 'add_descriptions' ) );
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}
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}
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do_action( 'display_featured_image_genesis_after_title' );
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// close wrap
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echo '</div>';
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if ( ! $scriptless ) {
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printf( '<noscript><div class="backstretch no-js">%s</div></noscript>', $image );
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}
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// close big-leader
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echo '</div>';
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add_filter( 'jetpack_photon_override_image_downsize', '__return_false' );
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}
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/**
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* Get the banner/noscript image.
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* @since 3.1.0
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*
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* @return string
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*/
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protected function get_banner_image() {
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$image_id = displayfeaturedimagegenesis_get()->set_image_id();
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return wp_get_attachment_image(
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$image_id,
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'displayfeaturedimage_backstretch',
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false,
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array(
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'alt' => $this->get_image_alt_text( $image_id ),
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'class' => 'big-leader__image post-image',
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'aria-hidden' => 'true',
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)
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);
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}
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/**
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* Get the alt text for the featured image. Use the image alt text if filter is true.
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*
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* @param string $image_id
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*
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* @return mixed
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*/
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protected function get_image_alt_text( $image_id = '' ) {
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$item = $this->get_item();
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$alt_text = $item->title;
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if ( $image_id && apply_filters( 'displayfeaturedimagegenesis_prefer_image_alt', false ) ) {
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$image_alt = get_post_meta( $image_id, '_wp_attachment_image_alt', true );
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if ( $image_alt ) {
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$alt_text = $image_alt;
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}
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}
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return $alt_text;
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}
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/**
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* All actions required to output the large image
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* @since 2.3.4
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*/
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protected function do_large_image_things() {
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remove_action( 'genesis_before_loop', 'genesis_do_cpt_archive_title_description' );
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add_action( 'genesis_before_loop', 'genesis_do_cpt_archive_title_description', 15 );
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$location = $this->get_hooks();
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add_action( esc_attr( $location['large']['hook'] ), array( $this, 'do_large_image' ), $location['large']['priority'] ); // works for both HTML5 and XHTML
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}
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/**
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* Large image, centered above content
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*
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* @since 1.0.0
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*/
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public function do_large_image() {
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$image_id = displayfeaturedimagegenesis_get()->set_image_id();
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$attr['class'] = 'aligncenter featured';
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$attr['alt'] = $this->get_image_alt_text( $image_id );
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$image_size = apply_filters( 'display_featured_image_large_image_size', displayfeaturedimagegenesis_get()->image_size() );
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$image = wp_get_attachment_image( $image_id, $image_size, false, $attr );
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$image = apply_filters( 'display_featured_image_genesis_large_image_output', $image, $image_id );
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echo wp_kses_post( $image );
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}
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/**
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* Return the title.
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* @return string title with markup.
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*
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* @since 2.3.1
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*/
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protected function do_the_title() {
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$description = $this->get_description_class();
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if ( is_front_page() && ! $description->show_front_page_title() ) {
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return '';
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}
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$class = is_singular() ? 'entry-title' : 'archive-title';
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$itemprop = genesis_html5() ? 'itemprop="headline"' : '';
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$item = $this->get_item();
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$title = $item->title;
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$title_output = sprintf( '<h1 class="%s featured-image-overlay" %s>%s</h1>', $class, $itemprop, $title );
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return apply_filters( 'display_featured_image_genesis_modify_title_overlay', $title_output, esc_attr( $class ), esc_attr( $itemprop ), $title );
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}
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/**
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* Check plugin settings/filters to see if the featured image should output on this post/etc. at all.
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* Returns true to quit now; false to carry on.
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* @return bool
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*/
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protected function quit_now() {
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$setting = $this->get_setting();
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$disable = false;
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$exclude_front = is_front_page() && $setting['exclude_front'];
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$post_type = get_post_type();
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$skip_singular = is_singular() && isset( $setting['skip'][ $post_type ] ) && $setting['skip'][ $post_type ] ? true : false;
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$post_id = displayfeaturedimagegenesis_get()->get_post_id();
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$post_meta = 1 === (int) get_post_meta( $post_id, '_displayfeaturedimagegenesis_disable', true );
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if ( $this->get_skipped_posttypes() || $skip_singular || $exclude_front || $post_meta ) {
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$disable = true;
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}
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/**
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* Allow users to decide to quite early conditionally, outside of specific post types.
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* @since 2.6.1
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*/
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return apply_filters( 'displayfeaturedimagegenesis_disable', $disable );
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}
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/**
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* Creates display_featured_image_genesis_skipped_posttypes filter to check
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* whether get_post_type array should not run plugin on this post type.
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* @uses is_in_array()
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*/
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protected function get_skipped_posttypes() {
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$post_types = array( 'attachment', 'revision', 'nav_menu_item' );
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return displayfeaturedimagegenesis_get()->is_in_array( 'skipped_posttypes', $post_types );
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}
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/**
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* Check whether plugin can output backstretch or large image
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* @return boolean checks featured image size. returns true if can proceed; false if cannot
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*
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* @since 2.3.4
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*/
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public function can_do_things() {
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$can_do = true;
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$item = $this->get_item();
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$medium = (int) apply_filters( 'displayfeaturedimagegenesis_set_medium_width', get_option( 'medium_size_w' ) );
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$width = (int) $item->backstretch[1];
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// check if they have enabled display on subsequent pages
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$is_paged = $this->get_setting( 'is_paged' );
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// if there is no backstretch image set, or it is too small, or the image is in the content, or it's page 2+ and they didn't change the setting, die
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if ( empty( $item->backstretch ) || $width <= $medium || ( is_paged() && ! $is_paged ) || ( is_singular() && false !== $item->content ) ) {
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$can_do = false;
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}
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return apply_filters( 'displayfeaturedimagegenesis_can_do', $can_do );
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}
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/**
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* Create a filter to not move excerpts if move excerpts is enabled.
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* @return bool
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* @since 2.0.0 (deprecated old function from 1.3.3)
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*/
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protected function move_excerpts() {
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$move_excerpts = $this->get_setting( 'move_excerpts' );
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/**
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* Creates display_featured_image_genesis_omit_excerpt filter to check
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* whether get_post_type array should not move excerpts for this post type.
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* @uses is_in_array()
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*/
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if ( $move_excerpts && ! displayfeaturedimagegenesis_get()->is_in_array( 'omit_excerpt' ) ) {
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return true;
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}
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return false;
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}
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/**
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* filter to maybe move titles, or not
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* @return bool
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* @since 2.2.0
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*/
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protected function move_title() {
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$keep_titles = $this->get_setting( 'keep_titles' );
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/**
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* Creates display_featured_image_genesis_do_not_move_titles filter to check
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* whether get_post_type array should not move titles to overlay the featured image.
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* @uses is_in_array()
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*/
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if ( $keep_titles || displayfeaturedimagegenesis_get()->is_in_array( 'do_not_move_titles' ) || $this->check_post_meta( '_displayfeaturedimagegenesis_move' ) ) {
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return false;
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}
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return true;
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}
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/**
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* If there is no image to use for the post thumbnail in archives,
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* optionally use the term or post type image as a fallback instead.
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*
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* @param $defaults
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*
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* @return mixed
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* @since 2.5.0
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*/
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public function change_thumbnail_fallback( $defaults ) {
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if ( ! $this->get_setting( 'thumbnails' ) ) {
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return $defaults;
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}
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remove_action( 'genesis_entry_content', 'display_featured_image_genesis_add_archive_thumbnails', 5 );
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$args = array(
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'post_mime_type' => 'image',
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'post_parent' => get_the_ID(),
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'post_type' => 'attachment',
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);
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$attached_images = get_children( $args );
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if ( $attached_images ) {
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return $defaults;
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}
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$image_id = display_featured_image_genesis_get_term_image_id();
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if ( empty( $image_id ) ) {
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$image_id = display_featured_image_genesis_get_cpt_image_id();
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}
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if ( $image_id ) {
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$defaults['fallback'] = $image_id;
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}
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return $defaults;
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}
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/**
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* Instantiate the description class as needed.
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* @return \Display_Featured_Image_Genesis_Description
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* @since 3.1.0
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*/
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protected function get_description_class() {
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if ( isset( $this->description ) ) {
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return $this->description;
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}
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include_once 'class-displayfeaturedimagegenesis-description.php';
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$this->description = new Display_Featured_Image_Genesis_Description();
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return $this->description;
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}
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/**
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* Get the current featured image and related variables.
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* @return \stdClass
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*/
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protected function get_item() {
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if ( isset( $this->item ) ) {
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return $this->item;
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}
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$this->item = displayfeaturedimagegenesis_get()->get_image_variables();
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return $this->item;
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}
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/**
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* Get the minimum acceptable backstretch width.
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*
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* @return int
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*/
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protected function get_minimum_backstretch_width() {
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return displayfeaturedimagegenesis_get()->minimum_backstretch_width();
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}
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/**
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* Define the hooks/priorities for image output.
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*
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* @return array
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*/
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protected function get_hooks() {
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$setting = displayfeaturedimagegenesis_get_setting();
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$large_hook = apply_filters( 'display_featured_image_genesis_move_large_image', $setting['large_hook'] );
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if ( ! is_singular() || is_page_template( 'page_blog.php' ) ) {
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$check = strpos( $large_hook, 'entry' ) || strpos( $large_hook, 'post' );
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if ( false !== $check ) {
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$large_hook = 'genesis_before_loop';
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}
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}
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return apply_filters( 'displayfeaturedimagegenesis_hooks', array(
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'backstretch' => array(
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'hook' => apply_filters( 'display_featured_image_move_backstretch_image', $setting['backstretch_hook'] ),
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'priority' => apply_filters( 'display_featured_image_move_backstretch_image_priority', $setting['backstretch_priority'] ),
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),
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'large' => array(
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'hook' => $large_hook,
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'priority' => apply_filters( 'display_featured_image_genesis_move_large_image_priority', $setting['large_priority'] ),
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),
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) );
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}
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/**
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* Check the post_meta for singular posts/pages/posts page.
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*
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* @param $meta_key string the post_meta key to check
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*
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* @return bool
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* @since 2.5.2
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*/
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protected function check_post_meta( $meta_key ) {
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$post_id = get_option( 'page_for_posts' ) && is_home() ? get_option( 'page_for_posts' ) : get_the_ID();
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$post_meta = (bool) get_post_meta( $post_id, $meta_key, true );
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return (bool) ( is_home() || is_singular() ) && $post_meta;
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}
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/**
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* Get the plugin setting.
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* @param string $key
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*
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* @return mixed
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*/
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private function get_setting( $key = '' ) {
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if ( isset( $this->setting ) ) {
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return $key ? $this->setting[ $key ] : $this->setting;
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}
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$this->setting = displayfeaturedimagegenesis_get_setting();
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return $key ? $this->setting[ $key ] : $this->setting;
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}
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/**
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* Remove Genesis titles/descriptions
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* Deprecated in 2.4.0 as function was moved to the descriptions class instead.
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*
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* @since 2.3.1
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*/
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public function remove_title_descriptions() {
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$description = $this->get_description_class();
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_deprecated_function( __FUNCTION__, '3.1.0', '$description->remove_title_descriptions' );
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$description->remove_title_descriptions();
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}
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/**
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* Do title and description together (for excerpt output)
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* Deprecated in 2.4.0 as function was moved to the descriptions class instead.
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*
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* @since 2.3.1
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*/
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public function do_title_descriptions() {
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$description = $this->get_description_class();
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_deprecated_function( __FUNCTION__, '3.1.0', '$description->do_title_descriptions' );
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$description->do_title_descriptions();
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}
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/**
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* Separate archive titles from descriptions. Titles show in leader image
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* area; descriptions show before loop.
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* Deprecated in 2.4.0 as function was moved to the descriptions class instead.
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*
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* @since 1.3.0
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*/
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public function add_descriptions() {
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$description = $this->get_description_class();
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_deprecated_function( __FUNCTION__, '3.1.0', '$description->add_descriptions' );
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$description->add_descriptions();
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}
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}
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