/**-----------------------------------------------------------------------------------------
* Copyright © 2026 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { EditorState } from '@progress/kendo-editor-common';
import { ActiveMarks } from './common/active-marks';
import { Predicate } from './common/predicate';
/**
 * @hidden
 */
export declare function outerWidth(element: HTMLElement): number;
/**
 * @hidden
 */
export declare const removeEntries: <T>(obj: T, predicate: Predicate<string>) => Partial<T>;
/**
 * @hidden
 */
export declare const removeEmptyEntries: <T>(obj: T) => Partial<T>;
/**
 * @hidden
 */
export declare const isEmpty: (obj: object) => boolean;
/**
 * @hidden
 */
export declare const isNullOrUndefined: (value: any) => boolean;
/**
 * @hidden
 */
export declare const isPresent: (value: any) => boolean;
/**
 * @hidden
 */
export declare const safeString: (value: any) => string;
/**
 * @hidden
 */
export declare const first: (arr: any[]) => any;
/**
 * @hidden
 */
export declare const last: (arr: any[]) => any;
/**
 * @hidden
 */
export declare const unique: (arr: any[]) => any[];
/**
 * @hidden
 */
export declare const split: (splitter: string) => (value: string) => string[];
/**
 * @hidden
 */
export declare const trim: (value: string) => string;
/**
 * @hidden
 */
export declare const filter: (predicate: (value: any) => boolean) => (arr: any[]) => any[];
/**
 * @hidden
 */
export declare const toArray: <T = any>(x: T | T[]) => T[];
/**
 * @hidden
 */
export declare const getUniqueStyleValues: (style: ActiveMarks, cssStyle: string) => string;
/**
 * @hidden
 */
export declare const conditionallyExecute: <T, R>(fn: (x: T) => R) => (condition: boolean) => (param: T) => T | R;
/**
 * Extracts the text from the current editor state's selection ([see example](https://www.telerik.com/kendo-angular-ui/components/editor/plugins#popup-tools)).
 *
 * @example
 * ```ts
 * import { getSelectionText } from '@progress/kendo-angular-editor';
 *
 * export class AppComponent {
 *     @ViewChild('editor') public editor;
 *     public onClick() {
 *         const selection = getSelectionText(this.editor.view.state);
 *     }
 * }
 * ```
 * @param state The current `EditorState`.
 * @returns The selected text.
 */
export declare const getSelectionText: (state: EditorState) => string;
/**
 * @hidden
 */
export declare const replaceMessagePlaceholder: (message: string, replacements: {
    placeholder: string;
    value: string;
}[]) => string;