laipower/wp-content/plugins/w3-total-cache/Generic_Plugin_WidgetNews.php

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<?php
/**
* File: Generic_Plugin_WidgetNews.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class: Generic_Plugin_WidgetNews
*/
class Generic_Plugin_WidgetNews {
/**
* Config.
*
* @var Config
*/
private $_config = null; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
/**
* Constructor.
*/
public function __construct() {
$this->_config = Dispatcher::config();
}
/**
* Runs plugin.
*/
public function run() {
if ( Util_Admin::get_current_wp_page() === 'w3tc_dashboard' ) {
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
}
add_action( 'w3tc_widget_setup', array( $this, 'wp_dashboard_setup' ) );
add_action( 'w3tc_network_dashboard_setup', array( $this, 'wp_dashboard_setup' ) );
if ( is_admin() ) {
add_action( 'wp_ajax_w3tc_widget_latest_news_ajax', array( $this, 'action_widget_latest_news_ajax' ) );
}
}
/**
* Dashboard setup action.
*/
public function wp_dashboard_setup() {
Util_Widget::add(
'w3tc_latest_news',
__( 'News', 'w3-total-cache' ),
array(
$this,
'widget_latest',
),
array(
$this,
'widget_latest_control',
),
'side'
);
}
/**
* Returns key for transient cache of "widget latest"
*
* @return string
*/
public function _widget_latest_cache_key() { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore
return 'dash_' . md5( 'w3tc_latest_news' );
}
/**
* Prints latest widget contents
*
* @return void
*/
public function widget_latest() {
$output = get_transient( $this->_widget_latest_cache_key() );
if ( false !== $output ) {
echo wp_kses(
$output,
array(
'a' => array(
'href' => array(),
'target' => array(),
),
'h4' => array(),
'p' => array(
'style' => array(),
),
)
);
} else {
include W3TC_INC_DIR . '/widget/latest_news.php';
}
}
/**
* Prints latest widget contents.
*/
public function action_widget_latest_news_ajax() {
// load content of feed.
global $wp_version;
$items = array();
$items_count = $this->_config->get_integer( 'widget.latest_news.items' );
include_once ABSPATH . WPINC . '/feed.php';
$feed = fetch_feed( W3TC_NEWS_FEED_URL );
if ( ! is_wp_error( $feed ) ) {
$feed_items = $feed->get_items( 0, $items_count );
foreach ( $feed_items as $feed_item ) {
$items[] = array(
'link' => $feed_item->get_link(),
'title' => htmlspecialchars_decode( $feed_item->get_title() ),
);
}
}
ob_start();
include W3TC_INC_DIR . '/widget/latest_news_ajax.php';
// Default lifetime in cache of 12 hours (same as the feeds).
set_transient( $this->_widget_latest_cache_key(), ob_get_flush(), 43200 );
die();
}
/**
* Latest widget control.
*
* @param integer $widget_id Widget id.
* @param array $form_inputs Form inputs.
*/
public function widget_latest_control( $widget_id, $form_inputs = array() ) {
if ( 'POST' === ( isset( $_SERVER['REQUEST_METHOD'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) : '' ) ) {
$this->_config->set( 'widget.latest_news.items', Util_Request::get_integer( 'w3tc_widget_latest_news_items', 3 ) );
$this->_config->save();
delete_transient( $this->_widget_latest_cache_key() );
}
include W3TC_INC_DIR . '/widget/latest_news_control.php';
}
/**
* Enqueue scripts and styles.
*/
public function enqueue() {
wp_enqueue_style( 'w3tc-widget' );
wp_enqueue_script( 'w3tc-metadata' );
wp_enqueue_script( 'w3tc-widget' );
}
}