/**
 * @oxpulse/chat-widget — ReactionQuickBar (reactions quick-bar redesign,
 * heart-first amendment 2026-07-14). Renamed from ReactionPicker (W2.2
 * slice 3) — same floating-popover mechanics, now reached by holding the
 * per-bubble heart button (≥400ms touch/pen hold, ≥400ms mouse hover-intent)
 * or pressing ArrowUp on it, instead of a click-triggered two-step flow (see
 * ui/reaction-trigger.ts and MessageList's wiring).
 *
 * Plain TS class, no framework. Renders emoji buttons inside the container,
 * handles keyboard navigation, outside click, and AbortSignal.
 */
export interface ReactionQuickBarOptions {
    /** Container element to render the bar inside. */
    container: HTMLElement;
    /** Called when the user selects an emoji. */
    onSelect: (emoji: string) => void;
    /** Optional abort signal — when aborted, show() becomes a no-op. */
    signal?: AbortSignal;
    /** BCP-47 tag or an already-resolved Locale. Optional — defaults via resolveLocale(). */
    lang?: string;
    /** The caller's current own reaction on this message, if any (spec 2026-07-14).
     *  Marks the matching button aria-pressed=true + an accent ring so the bar
     *  reflects existing state, not just a blank picker. */
    ownEmoji?: string;
    /** Whether the message this bar is attached to is the caller's own
     *  (reuse-update 2026-07-14) — drives right-edge vs left-edge anchoring
     *  via computeQuickBarPosition, ported from oxpulse-chat web's
     *  computePopoverPosition. Default false. */
    isOwnMessage?: boolean;
    /** Called whenever the bar closes ITSELF — Escape, outside-pointerdown,
     *  or an explicit hide()/re-show() (review fix HIGH#4, 2026-07-14).
     *  Without this, a caller that tracks "which message currently owns the
     *  bar" (MessageList's #quickBar/#quickBarMsgId) has no way to learn the
     *  bar closed on its own — its state goes stale and an idempotent-reshow
     *  guard keyed on that state blocks reopening the SAME message forever.
     *  NOT called for a redundant hide() on an already-closed bar. */
    onHide?: () => void;
}
/** MOTION (spec 2026-07-14): select fires a burst/scale-pop on the chosen
 *  button before the bar dismisses — this is the visual budget for that pop
 *  to play before DOM removal. Reduced-motion is handled entirely in CSS
 *  (the keyframe is zeroed under `prefers-reduced-motion: reduce`); this
 *  fixed short delay is imperceptible either way and keeps onSelect's
 *  business-logic side effect synchronous regardless of motion preference. */
export declare const SELECT_DISMISS_DELAY_MS = 160;
/**
 * ReactionQuickBar renders a floating emoji quick-select bar.
 *
 * Lifecycle:
 *   show(anchorEl) — appends bar to container, positions it, focuses first emoji
 *   hide()         — removes from DOM, restores focus to anchor
 *
 * A11y:
 *   role="dialog", first emoji focused on open, Arrow keys navigate,
 *   Escape hides + restores focus to anchor (deferred to a microtask),
 *   outside capture-phase pointerdown hides.
 */
export declare class ReactionQuickBar {
    #private;
    constructor(opts: ReactionQuickBarOptions);
    /**
     * Show the bar anchored to the given element.
     *
     * @param anchorEl  — element to anchor position to
     * @param mountTo   — element to append the bar to (default: constructor container).
     *                    Pass the ShadowRoot host element to escape overflow:hidden clip contexts.
     *                    F3 (design MAJOR-5): container has overflow:hidden which clips absolute children.
     * @param restoreFocusEl — element Escape restores focus to. Defaults to anchorEl.
     *                    Pass the heart button (anchorEl is the bubble, which is
     *                    not itself focusable).
     * @param focusFirstButton — whether to move focus into the bar on open.
     *                    Default true. Pass false for a passively-opened bar
     *                    (review fix CRITICAL#2, 2026-07-14: a mouse
     *                    hover-intent open must not steal focus from wherever
     *                    the user was, e.g. mid-typing in the composer) —
     *                    a deliberate hold/keyboard open should still focus it.
     */
    show(anchorEl: HTMLElement, mountTo?: HTMLElement, restoreFocusEl?: HTMLElement, focusFirstButton?: boolean): void;
    /** Hide the bar without firing onSelect. */
    hide(): void;
}
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