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267 lines
8.8 KiB
267 lines
8.8 KiB
5 years ago
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<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\Admin
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*/
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/**
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* This class adds the Social tab to the Yoast SEO metabox and makes sure the settings are saved.
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*/
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class WPSEO_Social_Admin extends WPSEO_Metabox {
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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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self::translate_meta_boxes();
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add_filter( 'wpseo_save_metaboxes', array( $this, 'save_meta_boxes' ), 10, 1 );
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add_action( 'wpseo_save_compare_data', array( $this, 'og_data_compare' ), 10, 1 );
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}
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/**
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* Translate text strings for use in the meta box.
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*
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* IMPORTANT: if you want to add a new string (option) somewhere, make sure you add that array key to
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* the main meta box definition array in the class WPSEO_Meta() as well!!!!
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*/
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public static function translate_meta_boxes() {
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/* translators: %s expands to the social network's name. */
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$title_text = __( 'If you don\'t want to use the post title for sharing the post on %s but instead want another title there, write it here.', 'wordpress-seo' );
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/* translators: %s expands to the social network's name. */
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$description_text = __( 'If you don\'t want to use the meta description for sharing the post on %s but want another description there, write it here.', 'wordpress-seo' );
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/* translators: %s expands to the social network's name. */
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$image_text = __( 'If you want to override the image used on %s for this post, upload / choose an image here.', 'wordpress-seo' );
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/* translators: %1$s expands to the social network, %2$s to the recommended image size. */
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$image_size_text = __( 'The recommended image size for %1$s is %2$s pixels.', 'wordpress-seo' );
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$social_networks = array(
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'opengraph' => __( 'Facebook', 'wordpress-seo' ),
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'twitter' => __( 'Twitter', 'wordpress-seo' ),
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);
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// Source: https://blog.bufferapp.com/ideal-image-sizes-social-media-posts.
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$recommended_image_sizes = array(
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/* translators: %1$s expands to the image recommended width, %2$s to its height. */
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'opengraph' => sprintf( __( '%1$s by %2$s', 'wordpress-seo' ), '1200', '630' ),
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// Source: https://developers.facebook.com/docs/sharing/best-practices#images.
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/* translators: %1$s expands to the image recommended width, %2$s to its height. */
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'twitter' => sprintf( __( '%1$s by %2$s', 'wordpress-seo' ), '1024', '512' ),
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);
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foreach ( $social_networks as $network => $label ) {
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if ( true === WPSEO_Options::get( $network, false ) ) {
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/* translators: %s expands to the name of a social network. */
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WPSEO_Meta::$meta_fields['social'][ $network . '-title' ]['title'] = sprintf( __( '%s Title', 'wordpress-seo' ), $label );
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WPSEO_Meta::$meta_fields['social'][ $network . '-title' ]['description'] = sprintf( $title_text, $label );
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/* translators: %s expands to the name of a social network. */
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WPSEO_Meta::$meta_fields['social'][ $network . '-description' ]['title'] = sprintf( __( '%s Description', 'wordpress-seo' ), $label );
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WPSEO_Meta::$meta_fields['social'][ $network . '-description' ]['description'] = sprintf( $description_text, $label );
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/* translators: %s expands to the name of a social network. */
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WPSEO_Meta::$meta_fields['social'][ $network . '-image' ]['title'] = sprintf( __( '%s Image', 'wordpress-seo' ), $label );
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WPSEO_Meta::$meta_fields['social'][ $network . '-image' ]['description'] = sprintf( $image_text, $label ) . ' ' . sprintf( $image_size_text, $label, $recommended_image_sizes[ $network ] );
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}
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}
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}
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/**
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* Returns the metabox section for the social settings.
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*
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* @return WPSEO_Metabox_Collapsibles_Sections
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*/
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public function get_meta_section() {
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$tabs = array();
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$social_meta_fields = WPSEO_Meta::get_meta_field_defs( 'social' );
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$opengraph = WPSEO_Options::get( 'opengraph' );
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$twitter = WPSEO_Options::get( 'twitter' );
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if ( $opengraph === true && $twitter === true ) {
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$single = null;
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}
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wp_nonce_field( 'yoast_free_metabox_social', 'yoast_free_metabox_social_nonce' );
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if ( $opengraph === true ) {
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$tabs[] = new WPSEO_Metabox_Collapsible(
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'facebook',
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$this->get_social_tab_content( 'opengraph', $social_meta_fields ),
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__( 'Facebook', 'wordpress-seo' )
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);
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}
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if ( $twitter === true ) {
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$tabs[] = new WPSEO_Metabox_Collapsible(
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'twitter',
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$this->get_social_tab_content( 'twitter', $social_meta_fields ),
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__( 'Twitter', 'wordpress-seo' )
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);
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}
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return new WPSEO_Metabox_Collapsibles_Sections(
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'social',
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'<span class="dashicons dashicons-share"></span>' . __( 'Social', 'wordpress-seo' ),
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$tabs
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);
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}
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/**
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* Generates the html for a social settings tab for one of the supported social media.
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*
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* @param string $medium Medium. Can be 'opengraph' or 'twitter'.
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* @param array $meta_field_defs The social meta field definitions.
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*
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* @return string
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*/
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private function get_social_tab_content( $medium, $meta_field_defs ) {
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$field_names = array(
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$medium . '-title',
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$medium . '-description',
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$medium . '-image',
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$medium . '-image-id',
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);
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$tab_content = $this->get_premium_notice( $medium );
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foreach ( $field_names as $field_name ) {
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$tab_content .= $this->do_meta_box( $meta_field_defs[ $field_name ], $field_name );
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}
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/**
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* If premium hide the form to show the social preview instead, we still need the fields to be output because
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* the values of the social preview are saved in the hidden field.
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*/
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$features = new WPSEO_Features();
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if ( $features->is_premium() ) {
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return $this->hide_form( $tab_content );
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}
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return $tab_content;
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}
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/**
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* Hides the given output when rendered to HTML.
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*
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* @param string $tab_content The social tab content.
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*
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* @return string The content.
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*/
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private function hide_form( $tab_content ) {
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return '<div class="hidden">' . $tab_content . '</div>';
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}
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/**
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* Returns the Upgrade to Premium notice.
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*
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* @param string $network The social network.
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*
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* @return string The notice HTML on the free version, empty string on premium.
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*/
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public function get_premium_notice( $network ) {
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$features = new WPSEO_Features();
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if ( $features->is_premium() ) {
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return '';
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}
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$network_name = __( 'Facebook', 'wordpress-seo' );
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if ( 'twitter' === $network ) {
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$network_name = __( 'Twitter', 'wordpress-seo' );
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}
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return sprintf(
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'<div class="notice inline yoast-notice yoast-notice-go-premium">
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<p>%1$s</p>
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<p><a href="%2$s" target="_blank">%3$s</a></p>
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</div>',
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sprintf(
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/* translators: %1$s expands to the social network's name, %2$s to Yoast SEO Premium. */
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esc_html__( 'Do you want to preview what it will look like if people share this post on %1$s? You can, with %2$s.', 'wordpress-seo' ),
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esc_html( $network_name ),
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'<strong>Yoast SEO Premium</strong>'
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),
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esc_url( WPSEO_Shortlinker::get( 'https://yoa.st/179' ) ),
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sprintf(
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/* translators: %s expands to Yoast SEO Premium. */
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esc_html__( 'Find out why you should upgrade to %s', 'wordpress-seo' ),
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'Yoast SEO Premium'
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)
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);
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}
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/**
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* Filter over the meta boxes to save, this function adds the Social meta boxes.
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*
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* @param array $field_defs Array of metaboxes to save.
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*
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* @return array
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*/
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public function save_meta_boxes( $field_defs ) {
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if ( ! isset( $_POST['yoast_free_metabox_social_nonce'] ) || ! wp_verify_nonce( $_POST['yoast_free_metabox_social_nonce'], 'yoast_free_metabox_social' ) ) {
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return $field_defs;
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}
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return array_merge( $field_defs, WPSEO_Meta::get_meta_field_defs( 'social' ) );
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}
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/**
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* This method will compare opengraph fields with the posted values.
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*
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* When fields are changed, the facebook cache will be purged.
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*
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* @param WP_Post $post Post instance.
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*/
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public function og_data_compare( $post ) {
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if ( empty( $_POST ) ) {
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return;
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}
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if ( empty( $post->ID ) || $post->post_status !== 'publish' ) {
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return;
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}
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if ( ! isset( $_POST['yoast_free_metabox_social_nonce'] ) || ! wp_verify_nonce( $_POST['yoast_free_metabox_social_nonce'], 'yoast_free_metabox_social' ) ) {
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return;
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}
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if ( ! isset( $_POST['original_post_status'] ) || $_POST['original_post_status'] !== 'publish' ) {
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return;
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}
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$fields_to_compare = array(
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'opengraph-title',
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'opengraph-description',
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'opengraph-image',
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);
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$reset_facebook_cache = false;
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foreach ( $fields_to_compare as $field_to_compare ) {
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$old_value = WPSEO_Meta::get_value( $field_to_compare, $post->ID );
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$new_value = '';
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$post_key = WPSEO_Meta::$form_prefix . $field_to_compare;
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if ( isset( $_POST[ $post_key ] ) ) {
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$new_value = sanitize_text_field( wp_unslash( $_POST[ $post_key ] ) );
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}
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if ( $old_value !== $new_value ) {
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$reset_facebook_cache = true;
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break;
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}
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}
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unset( $old_value, $new_value );
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if ( $reset_facebook_cache ) {
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wp_remote_get(
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'https://graph.facebook.com/?id=' . get_permalink( $post->ID ) . '&scrape=true&method=post'
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);
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}
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}
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} /* End of class */
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