[SmartCrawl] - Twitter Cards Full Size Images

sc-twitter-cards-full-images-sizes.php

<?php
/**
* Plugin Name: [SmartCrawl] - Twitter Cards Full Size Images
* Plugin URI: https://premium.wpmudev.org/
* Description: Forces full size images on Smartcrawl's Twitter cards
* Author: Panos Lyrakis @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*/


if ( ! defined( 'ABSPATH' ) ) {
    exit;
}


if ( ! class_exists( 'WPMUDEV_SmartCrawl_Twitter_Cards_Full_Imgs' ) ) {
    
    class WPMUDEV_SmartCrawl_Twitter_Cards_Full_Imgs {

    	private $size = 'full'; // or 'large'

        private static $_instance = null;
        private $twitter_printer = null;
        private $_is_running = false;
		private $_is_done = false;

		/**
		 * Holds resolver instance
		 *
		 * @var Smartcrawl_Endpoint_Resolver instance
		 */
		private $_resolver;

        public static function get_instance() {

            if( is_null( self::$_instance ) ){
                self::$_instance = new WPMUDEV_SmartCrawl_Twitter_Cards_Full_Imgs();
            }
            return self::$_instance;
            
        }

        private function __construct() {

            if ( ! class_exists( 'Smartcrawl_Twitter_Printer' ) ) {
                return;
            }

            add_action( 'init', array( $this, 'rm_default_hooks' ), 99 );

			add_action( 'wp_head', array( $this, 'dispatch_tags_injection' ), 50 );
			add_action( 'wds_head-after_output', array( $this, 'dispatch_tags_injection' ) );

        }


        public function rm_default_hooks() {

        	$this->twitter_printer = Smartcrawl_Twitter_Printer::get();
        	remove_action( 'wp_head', array( $this->twitter_printer, 'dispatch_tags_injection' ), 50 );
			remove_action( 'wds_head-after_output', array( $this->twitter_printer, 'dispatch_tags_injection' ) );

        }

        public function dispatch_tags_injection() {

			if ( ! ! $this->_is_done ) {
				return false;
			}
			$this->_is_done = true;

			if ( ! $this->is_enabled() ) {
				return false;
			}

			$card = $this->twitter_printer->get_card_content();
			$this->print_html_tag( 'card', $card );

			$this->_resolver = Smartcrawl_Endpoint_Resolver::resolve();

			$site = $this->twitter_printer->get_site_content();
			if ( ! empty( $site ) ) {
				$this->print_html_tag( 'site', $site );
			}

			$title = $this->twitter_printer->get_title_content();
			if ( ! empty( $title ) ) {
				$this->print_html_tag( 'title', $title );
			}

			$desc = $this->twitter_printer->get_description_content();
			if ( ! empty( $desc ) ) {
				$this->print_html_tag( 'description', $desc );
			}

			$img = $this->get_image_content();
			if ( ! empty( $img ) ) {
				$this->print_html_tag( 'image', $img );
			}

        }

        public function get_image_content() {

			$url = '';
			if ( is_singular() && has_post_thumbnail() ) {
				$url = get_the_post_thumbnail_url( null, $this->size );
			}

			$images = $this->get_tag_content( 'images', array( $url ) );

			return empty( $images ) ? '' : $images[0];

        }

		private function get_tag_content( $key, $default ) {
			// Check the object meta for required value
			$value_from_meta = $this->get_twitter_meta( $key );
			if ( ! empty( $value_from_meta ) ) {
				return Smartcrawl_Replacement_Helper::replace( $value_from_meta );
			}

			// Check the plugin settings for required value
			$value_from_settings = $this->get_twitter_setting( $key );
			if ( ! empty( $value_from_settings ) ) {
				return Smartcrawl_Replacement_Helper::replace( $value_from_settings );
			}

			return $default;
		}

		private function is_enabled() {
			$disabled_for_object = (bool) $this->get_twitter_meta( 'disabled' );
			$enabled_for_type = (bool) $this->get_twitter_setting( 'active' );

			return $this->is_globally_enabled()
			       && $enabled_for_type
			       && ! $disabled_for_object;
		}


		private function get_twitter_meta( $key ) {
			$meta = array();
			$queried_object = $this->get_queried_object();
			if ( is_a( $queried_object, 'WP_Post' ) ) {
				$meta = smartcrawl_get_value( 'twitter', $queried_object->ID );
			} elseif ( is_a( $queried_object, 'WP_Term' ) ) {
				$meta = smartcrawl_get_term_meta( $queried_object, $queried_object->taxonomy, 'twitter' );
			}

			return isset( $meta[ $key ] ) ? $meta[ $key ] : '';
		}


		private function get_twitter_setting( $key ) {
			$settings = Smartcrawl_Settings::get_options();
			$resolver = Smartcrawl_Endpoint_Resolver::resolve();
			$type_string = $this->get_type_string( $resolver->get_location() );
			$setting_key = sprintf( 'twitter-%s-%s', $key, $type_string );

			return isset( $settings[ $setting_key ] ) ? $settings[ $setting_key ] : '';
		}

		private function get_type_string( $location ) {
			// @todo: make sure are location types from Smartcrawl_Endpoint_Resolver are handled
			$mapping = array(
				Smartcrawl_Endpoint_Resolver::L_BLOG_HOME      => 'home',
				Smartcrawl_Endpoint_Resolver::L_STATIC_HOME    => 'page',
				Smartcrawl_Endpoint_Resolver::L_SEARCH         => 'search',
				Smartcrawl_Endpoint_Resolver::L_404            => '404',
				Smartcrawl_Endpoint_Resolver::L_AUTHOR_ARCHIVE => 'author',
				Smartcrawl_Endpoint_Resolver::L_BP_GROUPS      => 'bp_groups',
				Smartcrawl_Endpoint_Resolver::L_BP_PROFILE     => 'bp_profile',
				Smartcrawl_Endpoint_Resolver::L_DATE_ARCHIVE   => 'date',
			);

			$queried_object = $this->get_queried_object();
			if ( is_a( $queried_object, 'WP_Post' ) ) {
				$mapping[ Smartcrawl_Endpoint_Resolver::L_SINGULAR ] = get_post_type( $queried_object );
			} elseif ( is_a( $queried_object, 'WP_Term' ) ) {
				$mapping[ Smartcrawl_Endpoint_Resolver::L_TAX_ARCHIVE ] = $queried_object->taxonomy;
			} elseif ( is_a( $queried_object, 'WP_Post_Type' ) ) {
				$mapping[ Smartcrawl_Endpoint_Resolver::L_PT_ARCHIVE ] = Smartcrawl_Onpage_Settings::PT_ARCHIVE_PREFIX . $queried_object->name;
			}

			return isset( $mapping[ $location ] ) ? $mapping[ $location ] : '';
		}

		private function get_queried_object() {
			$resolver = Smartcrawl_Endpoint_Resolver::resolve();
			$query = $resolver->get_query_context();

			return ! empty( $query ) ? $query->get_queried_object() : null;
		}

		private function is_globally_enabled() {
			$settings = Smartcrawl_Settings::get_options();
			return ! empty( $settings['twitter-card-enable'] );
		}

		private function get_allowed_tags() {
			$allowed_tags = array(
				'meta' => array(
					'name'    => array(),
					'content' => array(),
				),
			);

			return $allowed_tags;
		}

		private function print_html_tag( $type, $content ) {
			echo wp_kses( $this->twitter_printer->get_html_tag( $type, $content ), $this->get_allowed_tags() );
		}


    }


    if ( ! function_exists( 'wpmudev_smartcrawl_twitter_cards_full_imgs' ) ) {

        function wpmudev_smartcrawl_twitter_cards_full_imgs(){         
            return WPMUDEV_SmartCrawl_Twitter_Cards_Full_Imgs::get_instance();
        };

        add_action( 'plugins_loaded', 'wpmudev_smartcrawl_twitter_cards_full_imgs', 10 );
    }

}