Archived
112 lines
2.6 KiB
PHP
112 lines
2.6 KiB
PHP
<?php
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/**
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* @package WPSEO\Frontend
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*/
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/**
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* This code handles the Google+ specific output that's not covered by OpenGraph.
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*/
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class WPSEO_GooglePlus {
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/**
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* @var object Instance of this class
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*/
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public static $instance;
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/**
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* Class constructor.
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*/
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public function __construct() {
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add_action( 'wpseo_googleplus', array( $this, 'google_plus_title' ), 10 );
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add_action( 'wpseo_googleplus', array( $this, 'description' ), 11 );
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add_action( 'wpseo_googleplus', array( $this, 'google_plus_image' ), 12 );
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add_action( 'wpseo_head', array( $this, 'output' ), 40 );
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}
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/**
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* Get the singleton instance of this class
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*
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* @return object
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*/
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public static function get_instance() {
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if ( ! ( self::$instance instanceof self ) ) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Output the Google+ specific content
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*/
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public function output() {
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/**
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* Action: 'wpseo_googleplus' - Hook to add all Google+ specific output to.
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*/
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do_action( 'wpseo_googleplus' );
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}
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/**
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* Output the Google+ specific description
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*/
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public function description() {
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if ( is_singular() ) {
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$desc = WPSEO_Meta::get_value( 'google-plus-description' );
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/**
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* Filter: 'wpseo_googleplus_desc' - Allow developers to change the Google+ specific description output
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*
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* @api string $desc The description string
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*/
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$desc = trim( apply_filters( 'wpseo_googleplus_desc', $desc ) );
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if ( is_string( $desc ) && '' !== $desc ) {
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echo '<meta itemprop="description" content="', esc_attr( $desc ), '">', "\n";
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}
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}
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}
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/**
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* Output the Google+ specific title
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*/
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public function google_plus_title() {
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if ( is_singular() ) {
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$title = WPSEO_Meta::get_value( 'google-plus-title' );
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/**
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* Filter: 'wpseo_googleplus_title' - Allow developers to change the Google+ specific title
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*
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* @api string $title The title string
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*/
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$title = trim( apply_filters( 'wpseo_googleplus_title', $title ) );
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if ( is_string( $title ) && $title !== '' ) {
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$title = wpseo_replace_vars( $title, get_post() );
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echo '<meta itemprop="name" content="', esc_attr( $title ), '">', "\n";
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}
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}
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}
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/**
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* Output the Google+ specific image
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*/
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public function google_plus_image() {
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if ( is_singular() ) {
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$image = WPSEO_Meta::get_value( 'google-plus-image' );
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/**
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* Filter: 'wpseo_googleplus_image' - Allow changing the Google+ image
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*
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* @api string $img Image URL string
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*/
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$image = trim( apply_filters( 'wpseo_googleplus_image', $image ) );
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if ( is_string( $image ) && $image !== '' ) {
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echo '<meta itemprop="image" content="', esc_url( $image ), '">', "\n";
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}
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}
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}
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}
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