wp-cache-sw/sw-cache.php at master · samvthom16/wp-cache-sw · GitHub

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<?php
   /*
   Plugin Name: WP SW Offline Cache
   Plugin URI:
   Description: A plugin to enhance offline capabilities using a service worker
   Version: 1.0
   Author: Mr. Samuel Thomas
   Author URI:
   License: GPL2
   */


	$sw_cache_setting = new sw_cache_setting;

	class sw_cache_setting{

    	function __construct( ) {

        	add_filter( 'admin_init' , array( &$this , 'register_fields' ) );

        	add_action('wp_footer', array( &$this, 'enqueue_script' ) );

    	}

    	function register_fields() {

        	register_setting( 'general', 'wp_sw_cache', 'esc_attr' );

        	add_settings_field('fav_color', '<label for="wp_sw_cache">'.__('Enable WP SW Cache' , 'wp_sw_cache' ).'</label>' , array(&$this, 'fields_html') , 'general' );

    	}

    	function is_cache_enabled(){

    		$value = get_option( 'wp_sw_cache', '' );

    		if( $value == 1 ){

    			return true;

    		}

    		return false;

    	}

    	function fields_html() {

			$checked = '';

        	if( $this->is_cache_enabled() ){

        		$checked = 'checked=checked';

        	}


        	echo '<input type="checkbox" id="wp_sw_cache" name="wp_sw_cache" value="1" '.$checked.' />';

    	}

    	function get_js_url(){

    		return plugins_url('wp-cache-sw/js/');

    	}

    	function enqueue_script(){

			$js_url = $this->get_js_url();

    		wp_enqueue_script('sw-cache', $js_url . 'main.js', array('jquery'), '3.3.9');

    		$sw_url = $js_url . 'sdk.js?v=6';

			$url = site_url('service-worker.js') . "?file=" . $sw_url;


    		wp_localize_script('sw-cache', 'wp_sw_cache_settings', array(

				'sw_js_url'	=> $url,

				'sw_enable'	=> $this->is_cache_enabled()

			));


    	}

	}