import { PptxElement, TextSegment } from 'pptx-viewer-core';
/**
 * Pure helpers for inline text editing. The editable surface itself is a
 * Svelte component (`InlineTextEditor.svelte`); this module only holds the
 * framework-agnostic logic: which elements are editable, remapping edited
 * plain text back onto the original rich segments (via the shared
 * `remapTextToSegments`, so per-run styles and field metadata survive), and
 * reading plain text out of a contenteditable surface.
 */
/**
 * Only elements that carry text (and are not locked) get the inline editor.
 * Equation-bearing text NEVER enters inline editing: the editor would only see
 * the literal "[Equation]" placeholder and committing would permanently drop
 * the OMML (`textSegments[].equationXml`). Mirrors the vanilla/Vue/React guard.
 */
export declare function canInlineEditElement(element: PptxElement | undefined): boolean;
/** Remap edited plain text back onto the element's original segments. */
export declare function remapInlineText(element: PptxElement, text: string): {
    text: string;
    textSegments: TextSegment[];
};
/**
 * Read the plain text of a contenteditable back out, translating `<br>` and
 * block-element boundaries into `\n` (contenteditable normalises Enter into
 * nested blocks or `<br>` depending on the browser).
 */
export declare function readEditableText(root: HTMLElement): string;
/**
 * `a:spAutoFit` ("Resize shape to fit text") editor-commit resize: decide the
 * element's new height from its text style, current height, and the live
 * (still-mounted) editor DOM node - `undefined` when the element carries no
 * text properties, autofit isn't `'shrink'`, or the measured height did not
 * meaningfully change.
 *
 * `EditorElementController#commitInlineText` calls this before it replaces
 * the element; `editorEl` there is found via
 * `document.querySelector('[data-inline-editor]')`, which still resolves at
 * that point because `InlineTextEditor.svelte`'s `close()` invokes `oncommit`
 * (the call that reaches here) BEFORE `onclose()` - only `onclose()` sets
 * `editingId = null`, which is what unmounts the editor on Svelte's next
 * update.
 */
export declare function resolveInlineTextAutoFitHeight(element: PptxElement, editorEl: HTMLElement | null): number | undefined;
/** Initial plain text + optional font style for the inline surface. */
export interface InlineTextSurface {
    text: string;
    fontSize: number | undefined;
    fontFamily: string | undefined;
}
/** Resolve the seed text and font hints for an element's inline editor. */
export declare function resolveInlineSurface(element: PptxElement): InlineTextSurface;
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