AdminNotification.php

<?php

namespace Piwik\Plugins\AdminNotification;

use Piwik\Piwik;
use Piwik\Notification;

/**
 */
class AdminNotification extends \Piwik\Plugin
{
    private static $hooks = array(
            'Login.authenticate.successful' => 'setNotificationV3', //Version 3.X Post login handler
            'SystemSettings.updated' => 'settingsChangedV3' //Version 3.X Setting updated handler
    );

    public function registerEvents()
    {
        return self::$hooks;
    }

    public function settingsChangedV3($settings)
    {
        if ($settings->getPluginName() === 'AdminNotification') {
            $this->setNotificationV3();
        }
    }

    public function setNotificationV3()
    {
            // Known issue. The alert notification is not updated until login/logout on v3.x.

            // 2.X Compatibility. This method appears to be getting called in v2.X which I didn't
            // believe would trigger the newer hooks.
        if (!class_exists('\Piwik\Settings\Plugin\SystemSettings')) { //If class doesn't exist just get out.
            return;
        }

            $settings = new SystemSettings();
            //print_r($settings->enabled->getValue());

        if ($settings->enabled->getValue()) {
            $notification = new Notification($settings->message->getValue());
            $notification->title = $settings->messageTitle->getValue();
            $notification->context = $settings->context->getValue();
            $notification->type = Notification::TYPE_PERSISTENT;
            //$notification->priority = Notification::PRIORITY_MAX;

            //echo "NOTIFY";
            //print_r($notification);

            Notification\Manager::notify('AdminNotification_notice', $notification);
        } else {
            //echo "NOTIFY CANCEL";
            Notification\Manager::cancel('AdminNotification_notice');
        }
    }
}