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<?php
namespace Imagely\NGG\Admin\Notifications;
use Imagely\NGG\Settings\Settings;
use Imagely\NGG\Util\URL;
class Manager {
public $_notifications = [];
public $_displayed_notice = false;
public $_dismiss_url = null;
/**
* @var Manager
*/
static $_instance = null;
/**
* @return Manager
*/
static function get_instance() {
if ( ! isset( self::$_instance ) ) {
self::$_instance = new Manager();
}
return self::$_instance;
}
public function __construct() {
$this->_dismiss_url = site_url( '/?ngg_dismiss_notice=1' );
}
public function has_displayed_notice() {
return $this->_displayed_notice;
}
public function add( $name, $handler ) {
$this->_notifications[ $name ] = $handler;
}
public function remove( $name ) {
unset( $this->_notifications[ $name ] );
}
public function render() {
$output = [];
foreach ( array_keys( $this->_notifications ) as $notice ) {
if ( ( $html = $this->render_notice( $notice ) ) ) {
$output[] = $html;
}
}
echo implode( "\n", $output );
}
public function is_dismissed( $name ) {
$retval = false;
$settings = Settings::get_instance();
$dismissed = $settings->get( 'dismissed_notifications', [] );
if ( isset( $dismissed[ $name ] ) ) {
if ( ( $id = get_current_user_id() ) ) {
if ( in_array( $id, $dismissed[ $name ] ) ) {
$retval = true;
} elseif ( in_array( 'unknown', $dismissed[ $name ] ) ) {
$retval = true;
}
}
}
return $retval;
}
public function dismiss( $name, $dismiss_code = 1 ) {
$response = [];
if ( ( $handler = $this->get_handler_instance( $name ) ) ) {
$has_method = method_exists( $handler, 'is_dismissable' );
if ( ( $has_method && $handler->is_dismissable() ) || ! $has_method ) {
if ( method_exists( $handler, 'dismiss' ) ) {
$response = $handler->dismiss( $dismiss_code );
$response['handled'] = true;
}
if ( is_bool( $response ) ) {
$response = [ 'dismiss' => $response ];
}
// Set default key/values
if ( ! isset( $response['handled'] ) ) {
$response['handled'] = false;
}
if ( ! isset( $response['dismiss'] ) ) {
$response['dismiss'] = true;
}
if ( ! isset( $response['persist'] ) ) {
$response['persist'] = $response['dismiss'];
}
if ( ! isset( $response['success'] ) ) {
$response['success'] = $response['dismiss'];
}
if ( ! isset( $response['code'] ) ) {
$response['code'] = $dismiss_code;
}
if ( $response['dismiss'] ) {
$settings = Settings::get_instance();
$dismissed = $settings->get( 'dismissed_notifications', [] );
if ( ! isset( $dismissed[ $name ] ) ) {
$dismissed[ $name ] = [];
}
$user_id = get_current_user_id();
$dismissed[ $name ][] = ( $user_id ? $user_id : 'unknown' );
$settings->set( 'dismissed_notifications', $dismissed );
if ( $response['persist'] ) {
$settings->save();
}
}
} else {
$response['error'] = __( 'Notice is not dismissible', 'nggallery' );
}
} else {
$response['error'] = __( 'No handler defined for this notice', 'nggallery' );
}
return $response;
}
public function get_handler_instance( $name ) {
$retval = null;
if ( isset( $this->_notifications[ $name ] ) ) {
$handler = $this->_notifications[ $name ];
if ( is_object( $handler ) ) {
$retval = $handler;
} elseif ( is_array( $handler ) ) {
$retval = new Wrapper( $name, $handler );
} elseif ( class_exists( $handler ) ) {
$retval = call_user_func( [ $handler, 'get_instance' ], $name );
}
}
return $retval;
}
public function enqueue_scripts() {
if ( $this->has_displayed_notice() ) {
$router = \Imagely\NGG\Util\Router::get_instance();
wp_enqueue_script(
'ngg_admin_notices',
$router->get_static_url( 'photocrati-nextgen_admin#admin_notices.js' ),
[],
NGG_SCRIPT_VERSION,
true
);
wp_localize_script(
'ngg_admin_notices',
'ngg_notification_dismiss_settings',
[
'url' => $this->_dismiss_url,
'nonce' => \wp_create_nonce( 'ngg_dismiss_notification' ),
]
);
}
}
public function serve_ajax_request() {
if ( isset( $_REQUEST['ngg_dismiss_notice'] ) ) {
$retval = [ 'failure' => true ];
if ( ! headers_sent() ) {
header( 'Content-Type: application/json' );
}
ob_start();
if ( ! isset( $_REQUEST['nonce'] ) || ! \wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['nonce'] ) ), 'ngg_dismiss_notification' ) ) {
$retval['msg'] = __( 'Invalid security token', 'nggallery' );
} else {
if ( ! isset( $_REQUEST['code'] ) ) {
$_REQUEST['code'] = 1;
}
if ( isset( $_REQUEST['name'] ) ) {
$retval = $this->dismiss(
sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ),
intval(
sanitize_text_field( wp_unslash( $_REQUEST['code'] ) )
)
);
} else {
$retval['msg'] = __( 'Not a valid notice name', 'nggallery' );
}
}
ob_end_clean();
echo json_encode( $retval );
exit();
}
}
public function render_notice( $name ) {
$retval = '';
if ( ( $handler = $this->get_handler_instance( $name ) ) && ! $this->is_dismissed( $name ) ) {
// Does the handler want to render?
$has_method = method_exists( $handler, 'is_renderable' );
if ( ( $has_method && $handler->is_renderable() ) || ! $has_method ) {
$show_dismiss_button = false;
if ( method_exists( $handler, 'show_dismiss_button' ) ) {
$show_dismiss_button = $handler->show_dismiss_button();
} elseif ( method_exists( $handler, 'is_dismissable' ) ) {
$show_dismiss_button = $handler->is_dismissable();
}
$template = method_exists( $handler, 'get_mvc_template' )
? $handler->get_mvc_template()
: 'photocrati-nextgen_admin#admin_notice';
// The 'inline' class is necessary to prevent our notices from being moved in the DOM
// see https://core.trac.wordpress.org/ticket/34570 for reference
$css_class = 'inline ';
$css_class .= ( method_exists( $handler, 'get_css_class' ) ? $handler->get_css_class() : 'updated' );
$view = new \C_MVC_View(
$template,
[
'css_class' => $css_class,
'is_dismissable' => ( method_exists( $handler, 'is_dismissable' ) ? $handler->is_dismissable() : false ),
'html' => ( method_exists( $handler, 'render' ) ? $handler->render() : '' ),
'show_dismiss_button' => $show_dismiss_button,
'notice_name' => $name,
]
);
$retval = $view->render( true );
if ( method_exists( $handler, 'enqueue_backend_resources' ) ) {
$handler->enqueue_backend_resources();
}
$this->_displayed_notice = true;
}
}
return $retval;
}
}