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<?php |
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/** |
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* Meta class |
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* |
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* @package sharing-image |
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* @author Anton Lukin |
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*/ |
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|
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namespace Sharing_Image; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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die; |
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} |
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|
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/** |
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* Meta class |
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* |
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* @class Meta |
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*/ |
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class Meta { |
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/** |
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* The instance of Settings class. |
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* |
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* @var instance |
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*/ |
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private $settings; |
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|
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/** |
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* Widget constructor. |
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*/ |
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public function __construct() { |
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$this->settings = new Settings(); |
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} |
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|
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/** |
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* Init class actions and filters. |
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*/ |
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public function init() { |
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add_action( 'wp_head', array( $this, 'show_header' ) ); |
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} |
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|
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/** |
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* Print poster image meta tags. |
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*/ |
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public function show_header() { |
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/** |
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* Easy way to hide poster meta. |
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* |
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* @param bool $hide_meta Set true to hide poster meta. |
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*/ |
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$hide_meta = apply_filters( 'sharing_image_hide_meta', false ); |
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|
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if ( $hide_meta ) { |
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return; |
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} |
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|
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$poster = $this->get_poster_src(); |
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|
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if ( false === $poster ) { |
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return; |
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} |
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|
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list( $image, $width, $height ) = $poster; |
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|
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printf( |
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'<meta property="og:image" content="%s">' . "\n", |
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esc_url( $image ) |
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); |
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|
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printf( |
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'<meta property="og:image:width" content="%s">' . "\n", |
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esc_attr( $width ) |
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); |
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|
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printf( |
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'<meta property="og:image:height" content="%s">' . "\n", |
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esc_attr( $height ) |
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); |
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} |
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|
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/** |
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* Public method to get Sharing Image poster. |
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* |
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* @param int $object_id Optional. Post ID or Taxonomy term ID. |
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|
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* @return string Url to poster. |
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*/ |
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public function get_poster( $object_id = null ) { |
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$poster = $this->get_poster_src( $object_id ); |
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|
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if ( ! isset( $poster[0] ) ) { |
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return null; |
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} |
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|
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return $poster[0]; |
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} |
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|
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/** |
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* Public method to get Sharing Image poster url, width and height. |
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* |
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* @param int $object_id Optional. Post ID or Taxonomy term ID. |
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|
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* @return array|false Poster image, width and height data or false if undefined. |
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*/ |
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public function get_poster_src( $object_id = null ) { |
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$poster = $this->get_widget_poster_src( $object_id ); |
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|
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if ( false === $poster ) { |
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$poster = $this->settings->get_default_poster_src(); |
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} |
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|
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/** |
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* Filters default template image data. |
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* |
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* @param array|false $image List of image data, or boolean false if no image is available. |
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* @param int $object_id Post ID or Taxonomy term ID. |
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*/ |
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return apply_filters( 'sharing_image_poster_src', $poster, $object_id ); |
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} |
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|
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/** |
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* Get post or term meta Sharing Image poster data. |
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* |
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* @param int $object_id Optional. Post ID or Taxonomy term ID. |
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|
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* @return array|false Widget poster image, width and height data or false if undefined. |
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*/ |
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public function get_widget_poster_src( $object_id = null ) { |
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$meta = array(); |
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|
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if ( is_singular() ) { |
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$meta = $this->get_singular_poster_meta( $object_id ); |
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} |
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|
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if ( is_category() || is_tag() || is_tax() ) { |
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$meta = $this->get_taxonomy_poster_meta( $object_id ); |
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} |
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|
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$poster = false; |
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|
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if ( is_array( $meta ) ) { |
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$meta = wp_array_slice_assoc( $meta, array( 'poster', 'width', 'height' ) ); |
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|
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if ( 3 === count( $meta ) ) { |
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$poster = array_values( $meta ); |
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} |
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} |
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|
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return $poster; |
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} |
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|
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/** |
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* Get singular template poster meta. |
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* |
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* @param int $post_id Optional. Post ID. |
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|
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* @return array|false Singular poster meta. False if undefined. |
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*/ |
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private function get_singular_poster_meta( $post_id = null ) { |
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$post = get_post( $post_id ); |
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|
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// Get post meta using Widget meta name const. |
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$meta = get_post_meta( $post->ID, Widget::WIDGET_META, true ); |
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|
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/** |
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* Filters singular template poster data. |
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* |
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* @param array|false $meta Singular poster meta. |
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* @param int $post_id Post ID. |
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*/ |
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return apply_filters( 'sharing_image_singular_poster_meta', $meta, $post_id ); |
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} |
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|
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/** |
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* Get taxonomy template poster data. |
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* |
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* @param int $term_id Optional. Term ID. |
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|
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* @return array|false Taxonomy poster meta. False if undefined. |
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*/ |
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private function get_taxonomy_poster_meta( $term_id = null ) { |
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if ( ! $this->settings->is_premium_features() ) { |
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return false; |
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} |
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|
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if ( null === $term_id ) { |
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$term_id = get_queried_object_id(); |
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} |
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|
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// Get term meta using Widget meta name const. |
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$meta = get_term_meta( $term_id, Widget::WIDGET_META, true ); |
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|
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/** |
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* Filters taxonomy template poster data. |
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* |
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* @param array $meta Term poster image meta. |
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* @param int $post_id Term ID. |
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*/ |
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return apply_filters( 'sharing_image_taxonomy_poster_meta', $meta, $term_id ); |
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} |
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} |
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|
