File Content: secondary-image.php <?php /** * Addional featured image for any post types * * @addon secondary-image * @version 1.2 * * @package ThemeREX Addons * @since v1.84.0 */ class TRX_Addons_Secondary_Image { /** * The class arguments. * * @since 1.84.0 * @access private * @var array */ private $args = array(); /** * Constructor. * * @since 1.84.0 * @access public * @param array $args The arguments. * @return void */ public function __construct( $args = array() ) { $this->args = wp_parse_args( $args, array( 'store_as_url' => true, 'post_type' => 'post', 'name' => esc_attr__( 'Secondary Image', 'trx_addons' ), 'label_set' => esc_attr__( 'Set secondary image', 'trx_addons' ), 'label_remove' => esc_attr__( 'Remove secondary image', 'trx_addons' ), ) ); $this->args['metabox_id'] = 'secondary_image'; $this->args['post_meta_key'] = 'trx_addons_' . $this->args['metabox_id']; $this->args['nonce_action'] = $this->args['metabox_id'] . '_nonce_action'; $this->args['nonce_name'] = $this->args['metabox_id'] . '_nonce_name'; add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ) ); add_action( 'save_post', array( $this, 'save_meta_box' ) ); } /** * Add metabox for a secondary image. * * @since 1.84.0 * @access public * @return void */ public function add_meta_box() { add_meta_box( $this->args['metabox_id'], $this->args['name'], array( $this, 'show_meta_box' ), $this->args['post_type'], 'side', 'default' ); } /** * Output the metabox content. * * @since 1.84.0 * @access public * @global object $post * @return void */ public function show_meta_box() { global $post; $image_id = get_post_meta( $post->ID, $this->args['post_meta_key'], true ); if ( is_numeric( $image_id ) && (int) $image_id > 0 ) { $attachment = wp_get_attachment_image_src( $image_id, 'post-thumbnail' ); $image_url = empty( $attachment[0] ) ? '' : $attachment[0]; } else { $image_url = $image_id; } $output = '<div class="trx_addons-secondary-image-meta-box">' . wp_nonce_field( $this->args['nonce_action'], $this->args['nonce_name'], true, false ) . '<input type="hidden"' . ' id="' . esc_attr( $this->args['post_meta_key'] ) . '_pt"' . ' name="' . esc_attr( $this->args['post_meta_key'] ) . '_pt"' . ' value="' . esc_attr( $this->args['post_type'] ) . '"' . '>' . '<input type="hidden"' . ' id="' . esc_attr( $this->args['post_meta_key'] ) . '"' . ' name="' . esc_attr( $this->args['post_meta_key'] ) . '"' . ' value="' . esc_attr( $image_url ) . '"' . '>' . trx_addons_options_show_custom_field( $this->args['post_meta_key'] . '_button', array( 'type' => 'mediamanager', 'multiple' => false, 'data_type' => 'image', 'button_caption' => '', 'class_field' => '', 'linked_field_id' => $this->args['post_meta_key'] ), $image_url ) . '</div>'; trx_addons_show_layout( $output ); } /** * Saves the metabox. * * @since 1.84 * @access public * @param string|int $post_id The post ID. * @return void. */ public function save_meta_box( $post_id ) { // check nonce if ( ! wp_verify_nonce( trx_addons_get_value_gp( $this->args['nonce_name'] ), $this->args['nonce_action'] ) ) { return; } // check autosave if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) { return $post_id; } // check permissions $capability = 'post'; $post_type = trx_addons_get_value_gp( $this->args['post_meta_key'] . '_pt', trx_addons_get_value_gp( 'post_type' ) ); if ( ! empty( $post_type ) ) { $post_types = get_post_types( array( 'name' => $post_type ), 'objects' ); if (!empty($post_types) && is_array($post_types)) { foreach ($post_types as $type) { $capability = $type->capability_type; break; } } } if ( ! current_user_can( "edit_{$capability}", $post_id ) ) { return $post_id; } // save post meta $image_url = sanitize_text_field( trx_addons_get_value_gp( $this->args['post_meta_key'] ) ); $image_id = empty( $this->args['store_as_url'] ) ? trx_addons_attachment_url_to_postid( $image_url ) : 0; update_post_meta( $post_id, $this->args['post_meta_key'], is_numeric( $image_id ) && (int) $image_id > 0 ? $image_id : $image_url ); } /** * Return the ID of the secondary image. * * @since 1.84.0 * @static * @access public * @param int $post_id A custom post ID. * @return int The secondary image ID. */ public static function get_secondary_image_id( $post_id = -1, $check_pt = true ) { $image_id = 0; if ( $post_id == -1 ) { $post_id = get_the_ID(); } $checked = ! $check_pt; if ( ! $checked ) { $post_types = trx_addons_get_option('secondary_image_post_types'); $post_type = get_post_type( $post_id ); $checked = is_array($post_types) && ! empty( $post_types[ $post_type ] ); } if ( $checked ) { $image_id = get_post_meta( $post_id, 'trx_addons_secondary_image', true ); if ( ! empty( $image_id ) && (int) $image_id == 0 ) { $image_id = trx_addons_attachment_url_to_postid( trx_addons_clear_thumb_size( $image_id ) ); } } return apply_filters( 'trx_addons_filter_secondary_image_id', $image_id ); } /** * Return the url of the secondary image. * * @since 1.84.0 * @static * @access public * @param string $post_type The post type of the post the featured image belongs to. * @param int $post_id A custom post ID. * @return int The secondary image ID. */ public static function get_secondary_image_url( $thumb_size, $post_id = -1, $check_pt = true ) { $image_url = 0; if ( $post_id == -1 ) { $post_id = get_the_ID(); } $checked = ! $check_pt; if ( ! $checked ) { $post_types = trx_addons_get_option('secondary_image_post_types'); $post_type = get_post_type( $post_id ); $checked = is_array($post_types) && ! empty( $post_types[ $post_type ] ); } if ( $checked ) { $image_id = get_post_meta( $post_id, 'trx_addons_secondary_image', true ); if ( is_numeric( $image_id ) && (int) $image_id > 0 ) { $attachment = wp_get_attachment_image_src( $image_id, $thumb_size ); $image_url = empty( $attachment[0] ) ? '' : $attachment[0]; } else { $image_url = trx_addons_add_thumb_size( $image_id, $thumb_size ); } } return apply_filters( 'trx_addons_filter_secondary_image_url', $image_url ); } } // Return the ID of the secondary image. if ( ! function_exists( 'trx_addons_get_secondary_image_id' ) ) { function trx_addons_get_secondary_image_id( $post_id = -1 ) { return TRX_Addons_Secondary_Image::get_secondary_image_id( $post_id ); } } // Return the url of the secondary image. if ( ! function_exists( 'trx_addons_get_secondary_image_url' ) ) { function trx_addons_get_secondary_image_url( $thumb_size, $post_id = -1 ) { return TRX_Addons_Secondary_Image::get_secondary_image_url( $thumb_size, $post_id ); } } // Add params to the ThemeREX Addons Options. if ( ! function_exists( 'trx_addons_secondary_image_add_options' ) ) { add_filter( 'trx_addons_filter_options', 'trx_addons_secondary_image_add_options' ); function trx_addons_secondary_image_add_options( $options ) { trx_addons_array_insert_before($options, 'sc_section', apply_filters( 'trx_addons_filter_options_secondary_image', array( 'secondary_image_section' => array( "title" => esc_html__('Secondary image', 'trx_addons'), 'icon' => 'trx_addons_icon-format-image', "type" => "section" ), 'secondary_image_section_info' => array( "title" => esc_html__('Secondary image settings', 'trx_addons') . trx_addons_get_theme_doc_link( '#themerex_addons_secondary_image' ), "desc" => wp_kses_data( __("Settings of the secondary images for any post type", 'trx_addons') ), "type" => "info" ), "secondary_image_post_types" => array( "title" => esc_html__("Post types", 'trx_addons'), "desc" => wp_kses_data( __("Select post types to add secondary image (showed on hover in shortcodes and post type archives)", 'trx_addons') ), "dir" => 'horizontal', "std" => array( 'post' => 1 ), "options" => array(), "type" => "checklist" ), ))); return $options; } } // Fill 'Post types' before show ThemeREX Addons Options if ( ! function_exists('trx_addons_secondary_image_before_show_options')) { add_filter( 'trx_addons_filter_before_show_options', 'trx_addons_secondary_image_before_show_options', 10, 2); function trx_addons_secondary_image_before_show_options($options, $pt='') { if ( isset($options['secondary_image_post_types']) ) { $options['secondary_image_post_types']['options'] = trx_addons_get_list_posts_types(); } return $options; } } // Init secondary image for selected post types if ( ! function_exists( 'trx_addons_secondary_image_init_post_types' ) ) { add_filter( 'init', 'trx_addons_secondary_image_init_post_types' ); function trx_addons_secondary_image_init_post_types() { $post_types = trx_addons_get_option('secondary_image_post_types'); if ( is_array($post_types) ) { foreach( $post_types as $pt => $v ) { if ( empty($v) ) continue; new TRX_Addons_Secondary_Image( array( 'post_type' => $pt ) ); } } } } // Load required styles and scripts for the frontend if ( ! function_exists( 'trx_addons_secondary_image_load_scripts_front' ) ) { add_action("wp_enqueue_scripts", 'trx_addons_secondary_image_load_scripts_front', TRX_ADDONS_ENQUEUE_SCRIPTS_PRIORITY); function trx_addons_secondary_image_load_scripts_front() { if ( trx_addons_is_on( trx_addons_get_option('debug_mode') ) ) { wp_enqueue_style( 'trx_addons-secondary-image', trx_addons_get_file_url( TRX_ADDONS_PLUGIN_ADDONS . "secondary-image/secondary-image.css" ), array(), null ); } } } // Merge styles to the single stylesheet if ( ! function_exists( 'trx_addons_secondary_image_merge_styles' ) ) { add_filter("trx_addons_filter_merge_styles", 'trx_addons_secondary_image_merge_styles'); function trx_addons_secondary_image_merge_styles($list) { $list[ TRX_ADDONS_PLUGIN_ADDONS . "secondary-image/secondary-image.css" ] = true; return $list; } } // Return secondary image layout if ( ! function_exists( 'trx_addons_secondary_image_get_layout' ) ) { function trx_addons_secondary_image_get_layout() { $output = ''; $image_url = trx_addons_get_secondary_image_url( apply_filters('trx_addons_filter_thumb_size', trx_addons_is_single() ? 'full' : trx_addons_get_thumb_size( 'masonry-big' ), 'secondary-image') ); if ( ! empty( $image_url ) ) { $output = '<div class="trx_addons_secondary_image ' . trx_addons_add_inline_css_class( 'background-image:url(' . esc_url( $image_url ) . ');' ) . '"></div>'; } return $output; } } // Start capture the featured image output if ( ! function_exists( 'trx_addons_secondary_image_start_capture_featured_image_output' ) ) { add_filter( 'trx_addons_filter_featured_image', 'trx_addons_secondary_image_start_capture_featured_image_output', 1, 2 ); function trx_addons_secondary_image_start_capture_featured_image_output( $done, $args=array() ) { $post_types = trx_addons_get_option('secondary_image_post_types'); $post_type = get_post_type(); if ( is_array($post_types) && ! empty( $post_types[ $post_type ] ) ) { ob_start(); } return $done; } } // Add secondary image to the featured image output if ( ! function_exists( 'trx_addons_secondary_image_add_to_featured_image_output' ) ) { add_filter( 'trx_addons_filter_featured_image', 'trx_addons_secondary_image_add_to_featured_image_output', 1000, 2 ); function trx_addons_secondary_image_add_to_featured_image_output( $done, $args=array() ) { $post_types = trx_addons_get_option('secondary_image_post_types'); $post_type = get_post_type(); if ( is_array($post_types) && ! empty( $post_types[ $post_type ] ) ) { $output = ob_get_contents(); ob_end_clean(); if ( ! empty( $output ) ) { if ( strpos( $output, 'post_featured') !== false && strpos( $output, 'trx_addons_secondary_image') === false ) { $html = trx_addons_secondary_image_get_layout(); if ( ! empty( $html ) ) { $output = preg_replace( '/(<div[\s]*class="[^"]*post_featured)([^>]*>)/', '$1 with_secondary_image $2' . $html, $output ); } } trx_addons_show_layout( $output ); } } return $done; } } // Add secondary image to the featured image output if ( ! function_exists( 'trx_addons_secondary_image_add_to_featured_image_internal' ) ) { add_action( 'trx_addons_action_before_featured', 'trx_addons_secondary_image_add_to_featured_image_internal' ); function trx_addons_secondary_image_add_to_featured_image_internal() { $output = trx_addons_secondary_image_get_layout(); if ( ! empty( $output ) ) { echo wp_kses( trx_addons_secondary_image_get_layout(), 'trx_addons_kses_content' ); } } } Submit