mirror of
https://github.com/10h30/display-featured-image-genesis.git
synced 2026-06-05 15:08:20 +09:00
Robin Cornett
258 lines
7.0 KiB
PHP
258 lines
7.0 KiB
PHP
<?php
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/**
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* Dependent class to establish/display columns for featured images
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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 2015 Robin Cornett Creative, LLC
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* @since 2.0.0
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*/
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class Display_Featured_Image_Genesis_Admin {
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protected $common;
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public function set_up_columns() {
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$this->common = new Display_Featured_Image_Genesis_Common();
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$this->set_up_taxonomy_columns();
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$this->set_up_post_type_columns();
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$this->set_up_author_columns();
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add_action( 'admin_enqueue_scripts', array( $this, 'featured_image_column_width' ) );
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add_action( 'pre_get_posts', array( $this, 'orderby' ) );
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}
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/**
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* set up new column for all public taxonomies
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*
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* @since 2.0.0
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*/
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protected function set_up_taxonomy_columns() {
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$args = array(
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'public' => true,
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);
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$output = 'names';
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$taxonomies = get_taxonomies( $args, $output );
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foreach ( $taxonomies as $taxonomy ) {
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add_filter( "manage_edit-{$taxonomy}_columns", array( $this, 'add_column' ) );
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add_action( "manage_{$taxonomy}_custom_column", array( $this, 'manage_taxonomy_column' ), 10, 3 );
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}
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}
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/**
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* set up new column for all public post types
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*
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* @since 2.0.0
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*/
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protected function set_up_post_type_columns() {
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$args = array(
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'public' => true,
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'_builtin' => false,
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);
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$output = 'names';
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$post_types = get_post_types( $args, $output );
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$post_types['post'] = 'post';
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$post_types['page'] = 'page';
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foreach ( $post_types as $post_type ) {
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if ( ! post_type_supports( $post_type, 'thumbnail' ) ) {
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continue;
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}
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add_filter( "manage_edit-{$post_type}_columns", array( $this, 'add_column' ) );
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add_action( "manage_{$post_type}_posts_custom_column", array( $this, 'custom_post_columns' ), 10, 2 );
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add_filter( "manage_edit-{$post_type}_sortable_columns", array( $this, 'make_sortable' ) );
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}
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}
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/**
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* Set up featured image column for users
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*
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* @since 2.3.0
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*/
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protected function set_up_author_columns() {
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add_filter( 'manage_users_columns', array( $this, 'add_column' ) );
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add_action( 'manage_users_custom_column', array( $this, 'manage_user_column' ), 10, 3 );
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}
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/**
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* add featured image column
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* @param column $columns set up new column to show featured image for taxonomies/posts/etc.
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*
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* @since 2.0.0
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*/
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public function add_column( $columns ) {
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$new_columns = $columns;
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array_splice( $new_columns, 1 );
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$new_columns['featured_image'] = __( 'Featured Image', 'display-featured-image-genesis' );
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return array_merge( $new_columns, $columns );
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}
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/**
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* manage new taxonomy column
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* @param blank $value blank (because WP)
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* @param column id $column column id is featured_image
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* @param term id $term_id term_id for taxonomy
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* @return featured image display featured image, if it exists, for each term in a public taxonomy
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*
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* @since 2.0.0
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*/
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public function manage_taxonomy_column( $value, $column, $term_id ) {
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if ( 'featured_image' !== $column ) {
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return;
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}
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$image_id = displayfeaturedimagegenesis_get_term_image( $term_id );
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if ( ! $image_id ) {
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return;
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}
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$taxonomy = filter_input( INPUT_POST, 'taxonomy', FILTER_SANITIZE_STRING );
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$taxonomy = ! is_null( $taxonomy ) ? $taxonomy : get_current_screen()->taxonomy;
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$image_id = displayfeaturedimagegenesis_check_image_id( $image_id );
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$args = array(
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'image_id' => $image_id,
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'context' => 'term',
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'alt' => get_term( $term_id, $taxonomy )->name,
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);
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echo wp_kses_post( $this->admin_featured_image( $args ) );
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}
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/**
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* manage new post_type column
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* @param column id $column column id is featured_image
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* @param post id $post_id id of each post
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* @return featured image display featured image, if it exists, for each post
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*
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* @since 2.0.0
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*/
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public function custom_post_columns( $column, $post_id ) {
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if ( 'featured_image' !== $column ) {
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return;
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}
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$image_id = get_post_thumbnail_id( $post_id );
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if ( ! $image_id ) {
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return;
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}
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$args = array(
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'image_id' => $image_id,
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'context' => 'post',
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'alt' => the_title_attribute( 'echo=0' ),
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);
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echo wp_kses_post( $this->admin_featured_image( $args ) );
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}
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/**
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* sets a width for the featured image column
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* @return stylesheet inline stylesheet to set featured image column width
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*/
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public function featured_image_column_width() {
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$screen = get_current_screen();
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if ( in_array( $screen->base, array( 'edit', 'edit-tags', 'users' ), true ) ) { ?>
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<style type="text/css">
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.column-featured_image { width: 105px; }
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.column-featured_image img { margin: 0 auto; display: block; height: auto; width: auto; max-width: 60px; max-height: 80px; }
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@media screen and (max-width: 782px) { .column-featured_image img { margin: 0; } }
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</style> <?php
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}
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}
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/**
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* User column output
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* @param string $value image to be output to column
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* @param string $column_name column name (featured_image)
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* @param int $user_id user id
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* @return string image
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*
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* @since 2.3.0
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*/
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public function manage_user_column( $value, $column_name, $user_id ) {
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if ( 'featured_image' !== $column_name ) {
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return;
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}
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$image_id = get_the_author_meta( 'displayfeaturedimagegenesis', (int) $user_id );
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if ( ! $image_id ) {
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return;
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}
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$args = array(
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'image_id' => $image_id,
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'context' => 'author',
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'alt' => get_the_author_meta( 'user_nicename', (int) $user_id ),
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);
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return $this->admin_featured_image( $args );
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}
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/**
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* Generic function to return featured image
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* @param array $args array of values to pass to function ( image_id, context, alt_tag )
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* @return string image html
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*
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* @since 2.3.0
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*/
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protected function admin_featured_image( $args ) {
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$image_id = $args['image_id'];
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$preview = wp_get_attachment_image_src( $image_id, 'thumbnail' );
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$preview = apply_filters( "display_featured_image_genesis_admin_{$args['context']}_thumbnail", $preview, $image_id );
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if ( ! $preview ) {
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return;
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}
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return sprintf( '<img src="%1$s" alt="%2$s" />', $preview[0], $args['alt'] );
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}
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/**
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* Make the featured image column sortable.
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* @param $columns
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* @return mixed
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* @since x.y.z
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*/
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public function make_sortable( $columns ) {
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$columns['featured_image'] = 'featured_image';
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return $columns;
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}
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/**
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* Set a custom query to handle sorting by featured image
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* @param $query
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* @since x.y.z
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*/
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public function orderby( $query ) {
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if ( ! is_admin() ) {
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return;
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}
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$orderby = $query->get( 'orderby' );
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if ( 'featured_image' === $orderby ) {
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$query->set(
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'meta_query', array(
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'relation' => 'OR',
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array(
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'key' => '_thumbnail_id',
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'compare' => 'NOT EXISTS',
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),
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array(
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'key' => '_thumbnail_id',
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'compare' => 'EXISTS',
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),
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)
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);
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$post_type = $query->get ( 'post_type' );
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$secondary_order = is_post_type_hierarchical( $post_type ) ? 'title' : 'date';
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$query->set( 'orderby', "meta_value_num $secondary_order" );
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}
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}
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}
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