import type { Editor } from "@tiptap/react";
/**
 * The px size the selection renders at while the run carries no `font_size` of
 * its own: the closest ancestor block that sets one, then the document base,
 * then the tier preset.
 *
 * The bubble menu shows this as an editable placeholder, so the size control is
 * never blank. "Closest ancestor wins" is the same order the canvas resolves in
 * — each block sets the tier CSS variable on its own wrapper — so a paragraph
 * inside a sized quote reports the quote's size.
 *
 * Exported for tests: the walk is the only part of this hook that isn't a thin
 * wrapper over `editor.isActive`.
 */
export declare const resolveSelectionFontSize: (editor: Editor, documentFontSize: number | null, documentLineHeight: number | null) => number;
export declare const useTextmenuStates: (editor: Editor | null) => {
    isBold: boolean;
    isItalic: boolean;
    isUnderline: boolean;
    isStrike: boolean;
    isAlignLeft: boolean;
    isAlignCenter: boolean;
    isAlignRight: boolean;
    isAlignJustify: boolean;
    isQuote: boolean;
    isOrderedList: boolean;
    isUnorderedList: boolean;
    isLink: boolean;
    isHeading: boolean;
    currentColor: string | undefined;
    currentFontSize: number | undefined;
    /** What the selection renders at while `currentFontSize` is unset. */
    inheritedFontSize: number | undefined;
    shouldShow: ({ editor }: {
        editor: Editor;
    }) => boolean;
};