import { UVEEventHandler, UVEEventType } from '@dotcms/types';
/**
 * Subscribes to content changes in the UVE editor
 *
 * @param {UVEEventHandler} callback - Function to be called when content changes are detected
 * @returns {Object} Object containing unsubscribe function and event type
 * @returns {Function} .unsubscribe - Function to remove the event listener
 * @returns {UVEEventType} .event - The event type being subscribed to
 * @internal
 */
export declare function onContentChanges(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * Subscribes to page reload events in the UVE editor
 *
 * @param {UVEEventHandler} callback - Function to be called when page reload is triggered
 * @returns {Object} Object containing unsubscribe function and event type
 * @returns {Function} .unsubscribe - Function to remove the event listener
 * @returns {UVEEventType} .event - The event type being subscribed to
 * @internal
 */
export declare function onPageReload(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * The single bounds-sync channel. Observes the iframe document and
 * every `[data-dot-object="container"]` with a single ResizeObserver,
 * debounces the trailing edge by {@link AUTO_BOUNDS_DEBOUNCE_MS}ms, and
 * emits the full `getDotCMSPageBounds(...)` payload whenever the layout
 * settles. Also listens on `scroll` (since scrolling moves contentlets
 * without changing layout) and on `UVE_FLUSH_BOUNDS` (the editor's
 * "give me bounds NOW, skip the debounce" message used during drag).
 *
 * Re-runs `querySelectorAll` and the observer wiring whenever a
 * MutationObserver detects child changes that touch container nodes,
 * so containers that mount/unmount after page-load are picked up
 * automatically.
 *
 * @internal
 */
export declare function onAutoBounds(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * Subscribes to iframe scroll events in the UVE editor
 *
 * @param {UVEEventHandler} callback - Function to be called when iframe scroll occurs
 * @returns {Object} Object containing unsubscribe function and event type
 * @returns {Function} .unsubscribe - Function to remove the event listener
 * @returns {UVEEventType} .event - The event type being subscribed to
 * @internal
 */
export declare function onIframeScroll(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * Listens for scroll-to-section requests from the UVE editor.
 *
 * Queries `#dot-section-{n}` first, then falls back to `#section-{n}`.
 * If the element is found, calls the callback with `{ sectionIndex, offsetTop }`.
 * If not found, the callback is not invoked.
 *
 * @param {UVEEventHandler} callback - Receives `{ sectionIndex: number; offsetTop: number }`.
 * @internal
 */
export declare function onScrollToSection(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * Subscribes to contentlet hover events in the UVE editor.
 *
 * The callback is invoked with a payload while the pointer is over a
 * DotCMS element, and once with `null` when the pointer leaves the last
 * reported element (transitions onto dead space). The editor uses the
 * `null` signal to clear the hover overlay so it doesn't linger over
 * areas that no longer have a contentlet under the pointer.
 *
 * @param {UVEEventHandler} callback - Function to be called when hover state changes
 * @returns {Object} Object containing unsubscribe function and event type
 * @returns {Function} .unsubscribe - Function to remove the event listener
 * @returns {UVEEventType} .event - The event type being subscribed to
 * @internal
 */
export declare function onContentletHovered(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};
/**
 * Subscribes to contentlet click events in the UVE editor.
 *
 * The editor's hover overlay is `pointer-events: none` so wheel events pass
 * through to the iframe. We detect the user's selection click here instead and
 * post it back to the editor.
 *
 * @param {UVEEventHandler} callback - Function to be called when a contentlet is clicked
 * @returns {Object} Object containing unsubscribe function and event type
 * @internal
 */
export declare function onContentletClicked(callback: UVEEventHandler): {
    unsubscribe: () => void;
    event: UVEEventType;
};