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✏️ Editing: Extension_FragmentCache_Plugin_Admin.php

<?php
namespace W3TC;

class Extension_FragmentCache_Plugin_Admin {
	private $_config = null;

/**
	 * Called from outside, to get extension's details
	 */
	static public function w3tc_extensions( $extensions, $config ) {
		$requirements = array();
		if ( !Util_Environment::is_w3tc_pro( $config ) )
			$requirements[] = 'Available after <a href="#" class="button-buy-plugin">upgrade</a>';

$extensions['fragmentcache'] = array (
			'name' => 'Fragment Cache',
			'author' => 'W3 EDGE',
			'description' => 'Caching of page fragments.',
			'author_uri' => 'https://www.w3-edge.com/',
			'extension_uri' => 'https://www.w3-edge.com/',
			'extension_id' => 'fragmentcache',
			'settings_exists' => true,
			'version' => '1.0',
			'enabled' => empty( $requirements ),
			'requirements' => implode( ', ', $requirements ),
			'active_frontend_own_control' => true,
			'path' => 'w3-total-cache/Extension_FragmentCache_Plugin.php'
		);

return $extensions;
	}

function __construct() {
		$this->_config = Dispatcher::config();
	}

/**
	 * Runs plugin
	 */
	function run() {
		add_filter( 'w3tc_objectcache_addin_required', array(
				$this, 'w3tc_objectcache_addin_required' ) );

add_action( 'w3tc_environment_fix_on_event', array(
				'\W3TC\Extension_FragmentCache_Environment', 'fix_on_event' ),
			10, 2 );
		add_action( 'w3tc_deactivate_extension_fragmentcache', array(
				'\W3TC\Extension_FragmentCache_Environment', 'deactivate_extension' ) );

add_filter( 'w3tc_admin_menu', array( $this, 'w3tc_admin_menu' ) );
		add_filter( 'w3tc_admin_bar_menu', array( $this, 'w3tc_admin_bar_menu' ) );
		add_filter( 'w3tc_extension_plugin_links_fragmentcache',
			array( $this, 'w3tc_extension_plugin_links' ) );
		add_action( 'w3tc_settings_page-w3tc_fragmentcache',
			array( $this, 'w3tc_settings_page_w3tc_fragmentcache' ) );

add_action( 'admin_init_w3tc_general', array(
				'\W3TC\Extension_FragmentCache_GeneralPage',
				'admin_init_w3tc_general'
			) );

add_action( 'w3tc_config_save', array( $this, 'w3tc_config_save' ), 10, 1 );

add_filter( 'w3tc_usage_statistics_summary_from_history', array(
				$this, 'w3tc_usage_statistics_summary_from_history' ), 10, 2 );
	}

public function w3tc_objectcache_addin_required( $addin_required ) {
		if ( $this->_config->is_extension_active_frontend( 'fragmentcache' ) )
			return true;

return $addin_required;
	}

public function w3tc_extension_plugin_links( $links ) {
		$links = array();
		$links[] = '<a class="edit" href="' .
			esc_attr( Util_Ui::admin_url( 'admin.php?page=w3tc_fragmentcache' ) ) .
			'">'. __( 'Settings' ).'</a>';

return $links;
	}

public function w3tc_admin_menu( $menu ) {
		$menu['w3tc_fragmentcache'] = array(
			'page_title' => __( 'Fragment Cache', 'w3-total-cache' ),
			'menu_text' => '<span class="w3tc_menu_item_pro">' .
			__( 'Fragment Cache', 'w3-total-cache' ) . '</span>',
			'visible_always' => false,
			'order' => 1100
		);

return $menu;
	}

public function w3tc_admin_bar_menu( $menu_items ) {
		if ( $this->_config->is_extension_active_frontend( 'fragmentcache' ) ) {
			$menu_items['20510.fragmentcache'] = array(
				'id' => 'w3tc_flush_fragmentcache',
				'parent' => 'w3tc_flush',
				'title' => __( 'Fragment Cache: All Fragments', 'w3-total-cache' ),
				'href' => wp_nonce_url( network_admin_url(
						'admin.php?page=w3tc_dashboard&amp;w3tc_flush_fragmentcache' ), 'w3tc' )
			);
		}

return $menu_items;
	}

public function w3tc_settings_page_w3tc_fragmentcache() {
		$v = new Extension_FragmentCache_Page();
		$v->render_content();
	}

public function w3tc_config_save( $config ) {
		// frontend activity
		$engine = $config->get_string( array( 'fragmentcache', 'engine' ) );

$is_frontend_active = ( !empty( $engine ) &&
			Util_Environment::is_w3tc_pro( $config ) );

$config->set_extension_active_frontend( 'fragmentcache',
			$is_frontend_active );
	}

public function w3tc_usage_statistics_summary_from_history( $summary, $history ) {
		// memcached servers
		$c = Dispatcher::config();
		if ( $c->get_string( array( 'fragmentcache', 'engine' ) ) == 'memcached' ) {
			$summary['memcached_servers']['fragmentcache'] = array(
				'servers' => $c->get_array( array( 'fragmentcache', 'memcached.servers' ) ),
				'username' => $c->get_string( array( 'fragmentcache', 'memcached.username' ) ),
				'password' => $c->get_string( array( 'fragmentcache', 'memcached.password' ) ),
				'name' => __( 'Fragment Cache', 'w3-total-cache' )
			);
		} elseif ( $c->get_string( array( 'fragmentcache', 'engine' ) ) == 'redis' ) {
			$summary['redis_servers']['fragmentcache'] = array(
				'servers' => $c->get_array( array( 'fragmentcache', 'redis.servers' ) ),
				'username' => $c->get_boolean( array( 'fragmentcache', 'redis.username' ) ),
				'dbid' => $c->get_integer( array( 'fragmentcache', 'redis.dbid' ) ),
				'password' => $c->get_string( array( 'fragmentcache', 'redis.password' ) ),
				'name' => __( 'Fragment Cache', 'w3-total-cache' )
			);
		}

// counters
		$fragmentcache_calls_total = Util_UsageStatistics::sum( $history,
			'fragmentcache_calls_total' );
		$fragmentcache_calls_hits = Util_UsageStatistics::sum( $history,
			'fragmentcache_calls_hits' );

$summary['fragmentcache'] = array(
			'calls_total' => Util_UsageStatistics::integer(
				$fragmentcache_calls_total ),
			'calls_per_second' => Util_UsageStatistics::value_per_period_seconds(
				$fragmentcache_calls_total, $summary ),
			'hit_rate' => Util_UsageStatistics::percent(
				$fragmentcache_calls_total, $fragmentcache_calls_total )
		);

return $summary;
	}
}

MR SKB