Viewing file:  News.php (4.24 KB) -rw-rw-rw-
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<?php
/**
* W3 Forum Widget
*/
if (!defined('W3TC')) {
die();
}
w3_require_once(W3TC_LIB_W3_DIR . '/Plugin.php');
w3_require_once(W3TC_INC_DIR . '/functions/widgets.php');
/**
* Class W3_Widget_Forum
*/
class W3_Widget_News extends W3_Plugin {
function run() {
w3_require_once(W3TC_INC_FUNCTIONS_DIR . '/admin.php');
if(w3tc_get_current_wp_page() == 'w3tc_dashboard')
add_action('admin_enqueue_scripts', array($this,'enqueue'));
add_action('w3tc_dashboard_setup', array(
&$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
*
* @return void
*/
function wp_dashboard_setup() {
w3tc_add_dashboard_widget('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
*/
function _widget_latest_cache_key() {
return 'dash_' . md5('w3tc_latest_news');
}
/**
* Prints latest widget contents
*
* @return void
*/
function widget_latest() {
if (false !== ($output = get_transient($this->_widget_latest_cache_key())))
echo $output;
else
include W3TC_INC_DIR . '/widget/latest_news.php';
}
/**
* Prints latest widget contents
*
* @return void
*/
function action_widget_latest_news_ajax() {
// load content of feed
global $wp_version;
$items = array();
$items_count = $this->_config->get_integer('widget.latest_news.items');
if ($wp_version >= 2.8) {
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' => $feed_item->get_title(),
'description' => $feed_item->get_description()
);
}
}
} else {
include_once (ABSPATH . WPINC . '/rss.php');
$rss = fetch_rss(W3TC_NEWS_FEED_URL);
if (is_object($rss)) {
$items = array_slice($rss->items, 0, $items_count);
}
}
// Removes feedburner tracking images when site is https
if (w3_is_https()) {
$total = sizeof($items);
for($i = 0; $i < $total; $i++) {
if (isset($items[$i]['description'])) {
$items[$i]['description'] = preg_replace('/<img[^>]+src[^>]+W3TOTALCACHE[^>]+>/',
'', $items[$i]['description']);
}
}
}
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
* @param array $form_inputs
* @return void
*/
function widget_latest_control($widget_id, $form_inputs = array()) {
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
w3_require_once(W3TC_LIB_W3_DIR . '/Request.php');
$this->_config->set('widget.latest_news.items', W3_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';
}
public function enqueue() {
wp_enqueue_style('w3tc-widget');
wp_enqueue_script('w3tc-metadata');
wp_enqueue_script('w3tc-widget');
}
}
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