mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-06-05 15:08:20 +09:00
Robin Cornett
469 lines
16 KiB
PHP
469 lines
16 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 2014-2017 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_Common $common
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*/
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protected $common;
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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 $item;
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/**
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* set parameters for scripts, etc. to run.
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*
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* @since 1.1.3
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*/
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public function manage_output() {
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$this->setting = displayfeaturedimagegenesis_get_setting();
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if ( $this->quit_now() ) {
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return;
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}
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$this->common = new Display_Featured_Image_Genesis_Common();
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$this->item = Display_Featured_Image_Genesis_Common::get_image_variables();
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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 ( ! $this->can_do_things() ) {
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return;
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}
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$css_file = apply_filters( 'display_featured_image_genesis_css_file', plugin_dir_url( __FILE__ ) . 'css/display-featured-image-genesis.css' );
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wp_enqueue_style( 'displayfeaturedimage-style', esc_url( $css_file ), array(), $this->common->version );
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if ( $this->setting['max_height'] ) {
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$this->add_inline_style();
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}
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add_filter( 'body_class', array( $this, 'add_body_class' ) );
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$large = $this->common->minimum_backstretch_width();
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$width = absint( $this->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 > $large || Display_Featured_Image_Genesis_Common::is_in_array( 'force_backstretch' ) ) {
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$this->do_backstretch_image_things();
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} else {
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$this->do_large_image_things();
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}
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}
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/**
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* Add max_height to output via inline style.
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*
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* @since 2.6.0
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*/
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public function add_inline_style() {
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$css = sprintf( '.big-leader { max-height: %spx; }', $this->setting['max_height'] );
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wp_add_inline_style( 'displayfeaturedimage-style', strip_tags( $css ) );
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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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if ( ! $this->can_do_things() ) {
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return $classes;
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}
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$large = $this->common->minimum_backstretch_width();
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$width = (int) $this->item->backstretch[1];
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if ( false === $this->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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* All actions required to output the backstretch image
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* @since 2.3.4
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*/
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protected function do_backstretch_image_things() {
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wp_register_script( 'displayfeaturedimage-backstretch', plugins_url( '/includes/js/backstretch.js', dirname( __FILE__ ) ), array( 'jquery' ), $this->common->version, true );
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wp_enqueue_script( 'displayfeaturedimage-backstretch-set', plugins_url( '/includes/js/backstretch-set.js', dirname( __FILE__ ) ), array( 'jquery', 'displayfeaturedimage-backstretch' ), $this->common->version, true );
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add_action( 'wp_print_scripts', array( $this, 'localize_scripts' ) );
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$hook = apply_filters( 'display_featured_image_move_backstretch_image', 'genesis_after_header' );
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$priority = apply_filters( 'display_featured_image_move_backstretch_image_priority', 10 );
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add_action( esc_attr( $hook ), array( $this, 'do_backstretch_image_title' ), $priority );
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}
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/**
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* Pass variables through to our js
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*
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* @since 2.3.0
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*/
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public function localize_scripts() {
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// backstretch settings which can be filtered
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$backstretch_vars = apply_filters( 'display_featured_image_genesis_backstretch_variables', array(
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'centeredX' => $this->setting['centeredX'],
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'centeredY' => $this->setting['centeredY'],
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'fade' => $this->setting['fade'],
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) );
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$image_id = Display_Featured_Image_Genesis_Common::set_image_id();
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$large = wp_get_attachment_image_src( $image_id, 'large' );
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$medium_large = wp_get_attachment_image_src( $image_id, 'medium_large' );
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$responsive = apply_filters( 'displayfeaturedimagegenesis_responsive_backstretch', true );
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$output = array(
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'source' => array(
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'backstretch' => esc_url( $this->item->backstretch[0] ),
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'large' => $large[3] && $responsive ? esc_url( $large[0] ) : '',
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'medium_large' => $medium_large[3] && $responsive ? esc_url( $medium_large[0] ) : '',
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),
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'width' => array(
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'backstretch' => $this->item->backstretch[1],
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'large' => $large[3] ? $large[1] : '',
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'medium_large' => $medium_large[3] ? $medium_large[1] : '',
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),
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'image_height' => array(
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'backstretch' => $this->item->backstretch[2],
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'large' => $large[3] ? $large[2] : '',
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'medium_large' => $medium_large[3] ? $medium_large[2] : '',
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),
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'height' => (int) $this->setting['less_header'],
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'centeredX' => (bool) $backstretch_vars['centeredX'],
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'centeredY' => (bool) $backstretch_vars['centeredY'],
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'fade' => (int) $backstretch_vars['fade'],
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'title' => esc_attr( $this->get_image_alt_text( $image_id ) ),
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);
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wp_localize_script( 'displayfeaturedimage-backstretch-set', 'BackStretchVars', $output );
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}
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/**
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* backstretch image title ( for images which are larger than Media Settings > Large )
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*
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* @since 1.0.0
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*/
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public function do_backstretch_image_title() {
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$this->description = new Display_Featured_Image_Genesis_Description();
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if ( $this->move_title() ) {
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$this->remove_title_descriptions();
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}
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echo '<div class="big-leader">';
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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 ( $this->move_excerpts() ) {
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$this->do_title_descriptions();
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} elseif ( $this->move_title() ) { // if titles are being moved to overlay the image
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if ( ! empty( $this->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( $this, 'add_descriptions' ) );
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}
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do_action( 'display_featured_image_genesis_after_title' );
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// close wrap
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echo '</div>';
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// if javascript not enabled, do a fallback featured image
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$image_id = Display_Featured_Image_Genesis_Common::set_image_id();
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$image = wp_get_attachment_image( $image_id, 'displayfeaturedimage_backstretch', false, array( 'alt' => $this->get_image_alt_text( $image_id ), 'class' => 'post-image', 'aria-hidden' => 'true' ) );
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printf( '<noscript><div class="backstretch no-js">%s</div></noscript>', $image );
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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 alt text for the featured image. Use the image alt text if filter is true.
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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( $image_id = '' ) {
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$alt_text = $this->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 $alt_text;
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}
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/**
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* All actions required to output the large image
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* @since 2.3.4
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*/
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protected function do_large_image_things() {
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remove_action( 'genesis_before_loop', 'genesis_do_cpt_archive_title_description' );
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add_action( 'genesis_before_loop', 'genesis_do_cpt_archive_title_description', 15 );
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$hook = apply_filters( 'display_featured_image_genesis_move_large_image', 'genesis_before_loop' );
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if ( ! is_singular() || is_page_template( 'page_blog.php' ) ) {
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$check = strpos( $hook, 'entry' ) || strpos( $hook, 'post' );
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if ( false !== $check ) {
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$hook = 'genesis_before_loop';
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}
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}
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$priority = apply_filters( 'display_featured_image_genesis_move_large_image_priority', 12 );
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add_action( esc_attr( $hook ), array( $this, 'do_large_image' ), $priority ); // works for both HTML5 and XHTML
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}
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/**
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* Large image, centered above content
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*
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* @since 1.0.0
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*/
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public function do_large_image() {
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$image_id = Display_Featured_Image_Genesis_Common::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', Display_Featured_Image_Genesis_Common::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 );
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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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if ( is_front_page() && ! $this->description->show_front_page_title() ) {
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return '';
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}
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$class = is_singular() ? 'entry-title' : 'archive-title';
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$itemprop = genesis_html5() ? 'itemprop="headline"' : '';
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$title = $this->item->title;
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$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 ), $title );
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}
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/**
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* Separate archive titles from descriptions. Titles show in leader image
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* area; descriptions show before loop.
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*
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* @since 1.3.0
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*
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*/
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public function add_descriptions() {
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$this->description->do_tax_description();
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$this->description->do_author_description();
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$this->description->do_cpt_archive_description();
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}
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/**
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* Do title and description together (for excerpt output)
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*
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* @since 2.3.1
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*/
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protected function do_title_descriptions() {
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$this->description->do_front_blog_excerpt();
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$this->description->do_excerpt();
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genesis_do_taxonomy_title_description();
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genesis_do_author_title_description();
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genesis_do_cpt_archive_title_description();
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}
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/**
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* Remove Genesis titles/descriptions
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* @since 2.3.1
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*/
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protected function remove_title_descriptions() {
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if ( is_singular() && ! is_page_template( 'page_blog.php' ) ) {
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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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if ( ! post_type_supports( get_post_type( get_the_ID() ), 'genesis-entry-meta-before-content' ) && apply_filters( 'displayfeaturedimagegenesis_remove_entry_header', true ) ) {
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remove_action( 'genesis_entry_header', 'genesis_entry_header_markup_open', 5 );
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remove_action( 'genesis_entry_header', 'genesis_entry_header_markup_close', 15 );
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}
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}
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remove_action( 'genesis_before_loop', 'genesis_do_taxonomy_title_description', 15 );
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remove_action( 'genesis_before_loop', 'genesis_do_author_title_description', 15 );
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remove_action( 'genesis_before_loop', 'genesis_do_cpt_archive_title_description' );
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remove_action( 'genesis_before_loop', 'genesis_do_blog_template_heading' );
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remove_action( 'genesis_before_loop', 'genesis_do_posts_page_heading' );
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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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$disable = false;
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$exclude_front = is_front_page() && $this->setting['exclude_front'];
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$post_type = get_post_type();
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$skip_singular = is_singular() && isset( $this->setting['skip'][ $post_type ] ) && $this->setting['skip'][ $post_type ] ? true : false;
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if ( $this->get_skipped_posttypes() || $skip_singular || $exclude_front || $this->check_post_meta( '_displayfeaturedimagegenesis_disable' ) ) {
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$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 Display_Featured_Image_Genesis_Common::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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$medium = (int) apply_filters( 'displayfeaturedimagegenesis_set_medium_width', get_option( 'medium_size_w' ) );
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$width = (int) $this->item->backstretch[1];
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// check if they have enabled display on subsequent pages
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$is_paged = ! empty( $this->setting['is_paged'] ) ? $this->setting['is_paged'] : 0;
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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( $this->item->backstretch ) || $width <= $medium || ( is_paged() && ! $is_paged ) || ( is_singular() && false !== $this->item->content ) ) {
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$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->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 ( $move_excerpts && ! Display_Featured_Image_Genesis_Common::is_in_array( 'omit_excerpt' ) ) {
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return true;
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}
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return false;
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}
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/**
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* filter to maybe move titles, or not
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* @return bool
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* @since 2.2.0
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*/
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protected function move_title() {
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$keep_titles = $this->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 || Display_Featured_Image_Genesis_Common::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 ( ! isset( $this->setting['thumbnails'] ) || ! $this->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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}
|
|
|
|
/**
|
|
* Check the post_meta for singular posts/pages/posts page.
|
|
* @param $meta_key string the post_meta key to check
|
|
*
|
|
* @return bool
|
|
* @since 2.5.2
|
|
*/
|
|
protected function check_post_meta( $meta_key ) {
|
|
$post_id = get_option( 'page_for_posts' ) && is_home() ? get_option( 'page_for_posts' ) : get_the_ID();
|
|
$post_meta = (bool) get_post_meta( $post_id, $meta_key, true );
|
|
return (bool) ( is_home() || is_singular() ) && $post_meta;
|
|
}
|
|
}
|