App\Http\Controllers\WidgetBoxController::edit PHP Method

    public function edit(Request $request, WidgetBoxHandler $handler, $id)
    {
        /** @var WidgetBox $widgetbox */
        $widgetbox = $handler->find($id);
        if ($widgetbox === null) {
            throw new NotFoundWidgetBoxException();
        }
        if (\Gate::denies('edit', new Instance('widgetbox.' . $id))) {
            throw new AccessDeniedHttpException();
        }
        app('xe.theme')->selectBlankTheme();
        $permission = null;
        if ($request->user()->isAdmin()) {
            $permission = array_merge($this->getPermArguments('widgetbox.' . $id, ['edit'])['edit'], ['mode' => null]);
        }
        return XePresenter::make('widgetbox.edit', compact('widgetbox', 'permission'));
    }