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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
*
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Härtl <jus@bitgrid.net>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Dashboard;
use InvalidArgumentException;
use OCP\AppFramework\QueryException;
use OCP\Dashboard\IManager;
use OCP\Dashboard\IWidget;
use OCP\IServerContainer;
use Throwable;
use Psr\Log\LoggerInterface;
class Manager implements IManager {
/** @var array */
private $lazyWidgets = [];
/** @var IWidget[] */
private $widgets = [];
/** @var IServerContainer */
private $serverContainer;
public function __construct(IServerContainer $serverContainer) {
$this->serverContainer = $serverContainer;
}
private function registerWidget(IWidget $widget): void {
if (array_key_exists($widget->getId(), $this->widgets)) {
throw new InvalidArgumentException('Dashboard widget with this id has already been registered');
}
$this->widgets[$widget->getId()] = $widget;
}
public function lazyRegisterWidget(string $widgetClass): void {
$this->lazyWidgets[] = $widgetClass;
}
public function loadLazyPanels(): void {
$classes = $this->lazyWidgets;
foreach ($classes as $class) {
try {
/** @var IWidget $widget */
$widget = $this->serverContainer->query($class);
} catch (QueryException $e) {
/*
* There is a circular dependency between the logger and the registry, so
* we can not inject it. Thus the static call.
*/
\OC::$server->get(LoggerInterface::class)->critical(
'Could not load lazy dashboard widget: ' . $e->getMessage(),
['excepiton' => $e]
);
}
/**
* Try to register the loaded reporter. Theoretically it could be of a wrong
* type, so we might get a TypeError here that we should catch.
*/
try {
$this->registerWidget($widget);
} catch (Throwable $e) {
/*
* There is a circular dependency between the logger and the registry, so
* we can not inject it. Thus the static call.
*/
\OC::$server->get(LoggerInterface::class)->critical(
'Could not register lazy dashboard widget: ' . $e->getMessage(),
['excepiton' => $e]
);
}
try {
$startTime = microtime(true);
$widget->load();
$endTime = microtime(true);
$duration = $endTime - $startTime;
if ($duration > 1) {
\OC::$server->get(LoggerInterface::class)->error(
'Dashboard widget {widget} took {duration} seconds to load.', [
'widget' => $widget->getId(),
'duration' => round($duration, 2),
]);
}
} catch (Throwable $e) {
\OC::$server->get(LoggerInterface::class)->critical(
'Error during dashboard widget loading: ' . $e->getMessage(),
['excepiton' => $e]
);
}
}
$this->lazyWidgets = [];
}
public function getWidgets(): array {
$this->loadLazyPanels();
return $this->widgets;
}
}
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