laipower/wp-content/plugins/w3-total-cache/extension-example/Extension_Example_Admin.php

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<?php
namespace W3TCExample;
/**
* Backend functionality of an extension.
* This class is loaded only for wp-admin/ requests
*/
class Extension_Example_Admin {
/**
* w3tc_extensions filter handler
*
* @param array $extensions array of extension descriptors to fill
* @param Config $config w3-total-cache configuration
* @return array
*/
static public function w3tc_extensions( $extensions, $config ) {
$extensions['example'] = array (
'name' => 'Example Extension',
'author' => 'W3 EDGE',
'description' => __( 'Example extension' ),
'author_uri' => 'https://www.w3-edge.com/',
'extension_uri' => 'https://www.w3-edge.com/',
'extension_id' => 'example',
'settings_exists' => true,
'version' => '1.0',
'enabled' => true,
'requirements' => '',
'path' => 'w3-total-cache-example/Extension_Example.php'
);
return $extensions;
}
/**
* Entry point of extension for wp-admin/ requests
* Called from Extension_Example.php
*/
public function run() {
// handle settings page of this extension
add_action( 'w3tc_extension_page_example', array(
$this,
'w3tc_extension_page'
) );
// get control when configuration is changed by user
add_action( 'w3tc_config_ui_save', array(
$this,
'w3tc_config_ui_save'
), 10, 2 );
// Register widget on W3 Total Cache Dashboard page
add_action( 'w3tc_widget_setup', array(
$this,
'w3tc_widget_setup'
) );
// get control when extension is deactivated
add_action( 'w3tc_deactivate_extension_example', array(
$this, 'w3tc_deactivate_extension' ) );
}
/**
* Show settings page
*/
public function w3tc_extension_page() {
include dirname( __FILE__ ) . '/Extension_Example_Page_View.php';
}
/**
* Get control when configuration is changed by user
*/
public function w3tc_config_ui_save( $config, $old_config ) {
if ( $config->get( array( 'example', 'is_title_postfix' ) ) !=
$old_config->get( array( 'example', 'is_title_postfix' ) ) ||
$config->get( array( 'example', 'title_postfix' ) ) !=
$old_config->get( array( 'example', 'title_postfix' ) ) ) {
// flush all content caches, since our extension will now alter
// content
w3tc_flush_posts();
}
}
/**
* Registers widget on W3 Total Cache Dashboard page
*/
public function w3tc_widget_setup() {
$screen = get_current_screen();
add_meta_box( 'example', 'example', array( $this, 'widget_content' ),
$screen, 'normal', 'core' );
}
/**
* Renders content of widget
*/
public function widget_content() {
echo "Example extension's widget";
}
/**
* Called when extension is deactivated.
* Perform a cleanup here
*/
public function w3tc_deactivate_extension() {
}
}