felixarntz/site-icon-extended

<?php
/**
 * WPSIE\PinnedTabIconHandler class
 *
 * @package WPSIE
 * @author Felix Arntz <felix-arntz@leaves-and-love.net>
 * @since 0.2.0
 */

namespace WPSIE;

use WP_Customize_Image_Control;
use WP_Customize_Color_Control;

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

if ( ! class_exists( 'WPSIE\PinnedTabIconHandler' ) ) {
    /**
     * This class is responsible for everything related to handling the Safari Pinned Tab Icon.
     *
     * @since 0.2.0
     */
    class PinnedTabIconHandler {

        /**
         * @since 0.2.0
         * @var WPSIE\PinnedTabIconHandler|null Holds the singleton instance of the class.
         */
        private static $instance = null;

        /**
         * Returns the singleton instance of the class.
         *
         * @since 0.2.0
         * @return WPSIE\PinnedTabIconHandler
         */
        public static function instance() {
            if ( null === self::$instance ) {
                self::$instance = new self();
            }
            return self::$instance;
        }

        /**
         * Class constructor.
         *
         * @since 0.2.0
         */
        private function __construct() {
        }

        /**
         * Adds actions and filters to integrate the class functionality into WordPress.
         *
         * @since 0.2.0
         */
        public function add_hooks() {
            if ( ! defined( 'WPSIE_PREVENT_SVG_UPLOAD' ) || ! WPSIE_PREVENT_SVG_UPLOAD ) {
                add_action( 'customize_register', array( $this, 'customize_register_pinned_tab_icon' ), 99, 1 );
                add_filter( 'upload_mimes', array( $this, 'allow_svg_uploads' ) );
            }
        }

        /**
         * Gets the Pinned Tab Icon URL.
         *
         * @since 0.2.0
         * @return string|false the URL to the icon or false if not set
         */
        public function get_svg_url() {
            return get_option( 'wpsie_pinned_tab_icon_url', false );
        }

        /**
         * Gets the Pinned Tab Icon color setting.
         *
         * @since 0.2.0
         * @return string a hexadecimal color string (black as default)
         */
        public function get_color() {
            return get_option( 'wpsie_pinned_tab_icon_color', '#000000' );
        }

        /**
         * Registers the Pinned Tab Icon settings in the Customizer. They are shown below the Site Icon setting.
         *
         * @since 0.2.0
         * @param WP_Customize_Manager $wp_customize action argument passed by WordPress
         */
        public function customize_register_pinned_tab_icon( $wp_customize ) {
            $site_icon_control = $wp_customize->get_control( 'site_icon' );
            if ( ! $site_icon_control ) {
                return;
            }

            $wp_customize->add_setting( 'wpsie_pinned_tab_icon_url', array(
                'type'            => 'option',
                'capability'    => 'manage_options',
                'transport'        => 'postMessage',
            ) );

            $wp_customize->add_setting( 'wpsie_pinned_tab_icon_color', array(
                'type'            => 'option',
                'capability'    => 'manage_options',
                'transport'        => 'postMessage',
            ) );

            $wp_customize->add_control( new WP_Customize_Image_Control( $wp_customize, 'wpsie_pinned_tab_icon_url', array(
                'label'            => __( 'Pinned Tab Icon', 'site-icon-extended' ),
                'description'    => __( 'Upload a square SVG image with all vectors 100% black to use as Pinned Tab Icon for Safari.', 'site-icon-extended' ),
                'section'        => $site_icon_control->section,
                'priority'        => $site_icon_control->priority + 2,
            ) ) );

            $wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, 'wpsie_pinned_tab_icon_color', array(
                'label'            => __( 'Pinned Tab Icon Color', 'site-icon-extended' ),
                'description'    => __( 'Set the color to be applied to the Pinned Tab Icon.', 'site-icon-extended' ),
                'section'        => $site_icon_control->section,
                'priority'        => $site_icon_control->priority + 3,
            ) ) );
        }

        /**
         * Filters the upload MIME types to allow uploading SVG files.
         *
         * @since 0.2.0
         * @param array $mime_types the original MIME types
         * @return array the filtered MIME types containing SVG
         */
        public function allow_svg_uploads( $mime_types ) {
            $mime_types['svg'] = 'image/svg+xml';

            return $mime_types;
        }
    }
}