420 lines
10 KiB
PHP
420 lines
10 KiB
PHP
<?php
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/**
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* Add custom meta data to posts.
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*
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* @package visual-portfolio/admin
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* Class Visual_Portfolio_Custom_Post_Meta
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*/
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class Visual_Portfolio_Custom_Post_Meta {
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/**
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* Visual_Portfolio_Custom_Post_Meta constructor.
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*/
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public static function init() {
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// add post formats.
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add_action( 'after_setup_theme', array( __CLASS__, 'add_extra_post_format' ), 99 );
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add_action( 'init', array( __CLASS__, 'register_post_meta' ) );
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add_action( 'add_meta_boxes', array( __CLASS__, 'add_post_format_metaboxes' ), 1 );
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add_action( 'save_post', array( __CLASS__, 'save_post_format_metaboxes' ) );
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add_action( 'save_post', array( __CLASS__, 'update_words_count' ) );
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add_action( 'wp_head', array( __CLASS__, 'update_views_count' ) );
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}
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/**
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* Check if current page is gutenberg.
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*
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* @return boolean
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*/
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public static function is_gutenberg() {
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$current_screen = get_current_screen();
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if ( method_exists( $current_screen, 'is_block_editor' ) && $current_screen->is_block_editor() ) {
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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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* Add video post format.
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*/
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public static function add_extra_post_format() {
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global $_wp_theme_features;
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$formats = array( 'image', 'video' );
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// Add existing formats.
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if ( isset( $_wp_theme_features['post-formats'] ) && isset( $_wp_theme_features['post-formats'][0] ) ) {
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$formats = array_merge( (array) $_wp_theme_features['post-formats'][0], $formats );
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}
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$formats = array_unique( $formats );
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add_theme_support( 'post-formats', $formats );
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}
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/**
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* Register post meta.
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*/
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public static function register_post_meta() {
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$post_type_names = array_keys( get_post_types() );
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foreach ( $post_type_names as $post_type ) {
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if ( ! is_post_type_viewable( $post_type ) ) {
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continue;
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}
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// Register meta for all post types.
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register_meta(
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'post',
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'_vp_format_video_url',
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array(
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'object_subtype' => $post_type,
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'type' => 'string',
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'single' => true,
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'show_in_rest' => true,
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'auth_callback' => array( __CLASS__, 'rest_auth' ),
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)
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);
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register_meta(
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'post',
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'_vp_image_focal_point',
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array(
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'object_subtype' => $post_type,
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'type' => 'object',
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'single' => true,
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'show_in_rest' => array(
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'schema' => array(
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'type' => 'object',
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'properties' => array(
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'x' => array(
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'type' => 'number',
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),
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'y' => array(
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'type' => 'number',
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),
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),
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),
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),
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'auth_callback' => array( __CLASS__, 'rest_auth' ),
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)
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);
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// Add support for 'custom-fields' to work in Gutenberg.
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add_post_type_support( $post_type, 'custom-fields' );
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}
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}
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/**
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* Determines REST API authentication.
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*
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* @param bool $allowed Whether it is allowed.
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* @param string $meta_key The meta key being checked.
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* @param int $post_id The post ID being checked.
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* @param int $user_id The user ID being checked.
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* @param string $cap The current capability.
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* @param array $caps All capabilities.
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* @return bool Whether the user can do it.
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*/
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// phpcs:ignore
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public static function rest_auth( $allowed, $meta_key, $post_id, $user_id, $cap, $caps ) {
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return user_can( $user_id, 'edit_post', $post_id );
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}
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/**
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* Add post format metaboxes.
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*
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* @param string $post_type post type.
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*/
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public static function add_post_format_metaboxes( $post_type ) {
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// Prevent if Gutenberg enabled.
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if ( self::is_gutenberg() ) {
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return;
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}
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// Prevent if no Video post format supported.
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if ( ! post_type_supports( $post_type, 'post-formats' ) ) {
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return;
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}
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add_meta_box(
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'vp_format_video',
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esc_html__( 'Video', 'visual-portfolio' ),
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array( __CLASS__, 'add_video_format_metabox' ),
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null,
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'side',
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'default'
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);
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}
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/**
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* Add Video Format metabox
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*
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* @param object $post The post object.
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*/
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public static function add_video_format_metabox( $post ) {
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wp_nonce_field( basename( __FILE__ ), 'vp_format_video_nonce' );
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$video_url = self::get_video_format_url( $post->ID );
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$oembed_html = false;
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$wpkses_iframe = array(
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'iframe' => array(
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'src' => array(),
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'height' => array(),
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'width' => array(),
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'frameborder' => array(),
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'allowfullscreen' => array(),
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),
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);
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if ( $video_url ) {
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$oembed = visual_portfolio()->get_oembed_data( $video_url );
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if ( $oembed && isset( $oembed['html'] ) ) {
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$oembed_html = $oembed['html'];
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}
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}
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?>
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<p></p>
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<input class="vp-input" name="_vp_format_video_url" type="url" id="_vp_format_video_url" value="<?php echo esc_attr( $video_url ); ?>" placeholder="<?php echo esc_attr__( 'https://', 'visual-portfolio' ); ?>">
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<div class="vp-oembed-preview">
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<?php
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if ( $oembed_html ) {
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echo wp_kses( $oembed_html, $wpkses_iframe );
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}
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?>
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</div>
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<style>
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#vp_format_video {
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display: <?php echo has_post_format( 'video' ) ? 'block' : 'none'; ?>;
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}
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</style>
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<?php
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}
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/**
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* Save Format metabox
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*
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* @param int $post_id The post ID.
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*/
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public static function save_post_format_metaboxes( $post_id ) {
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if ( ! isset( $_POST['vp_format_video_nonce'] ) ) {
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return;
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}
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if ( ! wp_verify_nonce( sanitize_key( $_POST['vp_format_video_nonce'] ), basename( __FILE__ ) ) ) {
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return;
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}
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$meta = array(
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'_vp_format_video_url',
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);
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foreach ( $meta as $item ) {
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if ( isset( $_POST[ $item ] ) ) {
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if ( is_array( $_POST[ $item ] ) ) {
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$result = array_map( 'sanitize_text_field', wp_unslash( $_POST[ $item ] ) );
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} else {
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$result = sanitize_text_field( wp_unslash( $_POST[ $item ] ) );
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}
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update_post_meta( $post_id, $item, $result );
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// remove old video meta.
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if ( '_vp_format_video_url' === $item && get_post_meta( $post_id, 'video_url', true ) ) {
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delete_post_meta( $post_id, 'video_url' );
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}
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} else {
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update_post_meta( $post_id, $item, false );
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}
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}
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}
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/**
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* Get video format URL.
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*
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* @param int $post_id The post ID.
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*/
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public static function get_video_format_url( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$video_url = get_post_meta( $post_id, '_vp_format_video_url', true );
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// fallback.
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if ( ! $video_url ) {
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$video_url = get_post_meta( $post_id, 'video_url', true );
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}
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return $video_url;
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}
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/**
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* Get featured image focal point.
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*
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* @param int $post_id The post ID.
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*/
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public static function get_featured_image_focal_point( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$focal_point = get_post_meta( $post_id, '_vp_image_focal_point', true );
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if (
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! isset( $focal_point ) ||
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empty( $focal_point ) ||
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! isset( $focal_point['x'] ) || ! isset( $focal_point['y'] ) ||
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( '0.5' === $focal_point['x'] && '0.5' === $focal_point['y'] )
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) {
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return null;
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}
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return $focal_point;
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}
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/**
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* Update views count.
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*
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* @param int $post_id The post ID.
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*/
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public static function update_views_count( $post_id ) {
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if ( ! is_single() ) {
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return;
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}
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$current_views = self::get_views_count( $post_id );
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update_post_meta( $post_id, '_vp_views_count', $current_views + 1 );
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// Support for https://wordpress.org/plugins/post-views-counter/ .
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if ( function_exists( 'pvc_view_post' ) ) {
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pvc_view_post( $post_id );
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}
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}
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/**
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* Get views count.
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*
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* @param int $post_id The post ID.
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*/
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public static function get_views_count( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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// Support for https://wordpress.org/plugins/post-views-counter/ .
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if ( function_exists( 'pvc_get_post_views' ) ) {
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return pvc_get_post_views( $post_id );
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}
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$current_views = get_post_meta( $post_id, '_vp_views_count', true );
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if ( ! $current_views ) {
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$current_views = 0;
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}
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return $current_views;
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}
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/**
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* Update reading time.
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*
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* @param int $post_id The post ID.
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*/
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public static function update_words_count( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$current_reading_time = self::calculate_words_count( $post_id );
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update_post_meta( $post_id, '_vp_words_count', $current_reading_time );
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}
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/**
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* Get reading time.
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*
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* Read time is based on the average reading speed of an adult (roughly 265 WPM).
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* We take the total word count of a post and translate it into minutes.
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* For posts in Chinese, Japanese and Korean, it's a function of
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* number of characters (500 characters/min).
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*
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* @thanks https://help.medium.com/hc/en-us/articles/214991667-Read-time
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*
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* @param int $post_id The post ID.
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*/
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public static function get_reading_time( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$post_words_count = get_post_meta( $post_id, '_vp_words_count', true );
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if ( ! $post_words_count ) {
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$post_words_count = self::calculate_words_count( $post_id );
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}
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$locale = get_locale();
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switch ( $locale ) {
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// zh_CN - Chinese (China)
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// zh_HK - Chinese (Hong Kong SAR China)
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// zh_SG - Chinese (Singapore)
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// zh_TW - Chinese (Taiwan)
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// ja_JP - Japanese (Japan)
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// ko_KR - Korean (South Korea).
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case 'zh_CN':
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case 'zh_HK':
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case 'zh_SG':
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case 'zh_TW':
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case 'ja_JP':
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case 'ko_KR':
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$reading_time = $post_words_count / 500;
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break;
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default:
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$reading_time = $post_words_count / 265;
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break;
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}
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// When reading time is 0, return it as `< 1` instead of `0`.
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if ( 1 > $reading_time ) {
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$reading_time = esc_html__( '< 1', 'visual-portfolio' );
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} else {
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$reading_time = ceil( $reading_time );
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}
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return $reading_time;
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}
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/**
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* Calculate words count.
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*
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* @param int $post_id The post ID.
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*/
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public static function calculate_words_count( $post_id ) {
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if ( ! $post_id ) {
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$post_id = get_the_ID();
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}
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$content = get_the_content( null, false, $post_id );
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$content = wp_strip_all_tags( $content );
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$words_count = count( preg_split( '/\s+/', $content ) );
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return $words_count;
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}
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}
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Visual_Portfolio_Custom_Post_Meta::init();
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