import { CommandFunction, IdentifierSchemaAttributes, KeyBindingProps, PlainExtension } from '@remirror/core';
import { NodeFormattingOptions, NodeTextAlignment } from './node-formatting-utils';
/**
 * Support consistent formatting of nodes within your editor.
 */
export declare class NodeFormattingExtension extends PlainExtension<NodeFormattingOptions> {
    get name(): "nodeFormatting";
    /**
     * Set up the extra attributes which are applied to the formattable node
     * blocks.
     */
    createSchemaAttributes(): IdentifierSchemaAttributes[];
    setLineHeight(lineHeight: number): CommandFunction;
    /**
     * Set the text alignment for the selected nodes.
     */
    setTextAlignment(alignment: NodeTextAlignment): CommandFunction;
    /**
     * Set the indent level for the selected nodes.
     */
    setIndent(level: number | '+1' | '-1'): CommandFunction;
    /**
     * Center the text within current block node.
     */
    centerAlign(): CommandFunction;
    /**
     * Justify the text within the current block node.
     */
    justifyAlign(): CommandFunction;
    /**
     * Left align the text within the current block node.
     */
    leftAlign(): CommandFunction;
    /**
     * Right align the text within the current block node.
     */
    rightAlign(): CommandFunction;
    /**
     * Increase the indentation level of the current block node, if applicable.
     */
    increaseIndent(): CommandFunction;
    /**
     * Decrease the indentation of the current block node.
     */
    decreaseIndent(): CommandFunction;
    centerAlignShortcut(props: KeyBindingProps): boolean;
    justifyAlignShortcut(props: KeyBindingProps): boolean;
    leftAlignShortcut(props: KeyBindingProps): boolean;
    rightAlignShortcut(props: KeyBindingProps): boolean;
    increaseIndentShortcut(props: KeyBindingProps): boolean;
    decreaseIndentShortcut(props: KeyBindingProps): boolean;
    /**
     * Add an indentation attribute to the formattable node blocks.
     */
    private nodeIndent;
    /**
     * Add the `nodeTextAlignment` attribute to the formattable block nodes.
     */
    private nodeTextAlignment;
    /**
     * Add a `line height` attribute to all the formattable block nodes selected.
     */
    private nodeLineHeight;
    private setNodeAttribute;
}
declare global {
    namespace Remirror {
        interface Attributes {
            /**
             * The indentation level for the formattable node.
             */
            nodeIndent?: number;
            /**
             * Set the text alignment fpr the formattable node.
             */
            nodeTextAlignment?: NodeTextAlignment;
            /**
             * A ratio with a minimum value of `1` (100%) for the line height of a
             * formattable node.
             */
            nodeLineHeight?: number;
        }
        interface AllExtensions {
            nodeFormatting: NodeFormattingExtension;
        }
    }
}