declare namespace Ext {
    export namespace util {
        export interface FloatingConfig {
            alignOnScroll?: boolean;
            alwaysOnTop?: boolean | number;
            animateShadow?: boolean;
            constrain?: boolean;
            fixed?: boolean;
            focusOnToFront?: boolean;
            modal?: boolean;
            shadow?: string | boolean;
            shadowOffset?: number;
            shim?: boolean;
        }

        export class Floating extends Ext.Base  {
            public zIndexManager?: Ext.ZIndexManager;
            public zIndexParent?: Ext.container.Container;
            public center(): Ext.Component;
            public doConstrain(constrainTo?: string | Ext.dom.Element | Ext.util.Region | HTMLElement): void;
            public getAlwaysOnTop(): void;
            public setAlwaysOnTop(): void;
            public toBack(): Ext.Component;
            public toFront(preventFocus?: boolean): Ext.Component;
        }
    }
}