import { PresentationPointerTool, PresentationSnapshot } from 'pptx-viewer-shared';
/** Everything the strip needs to decide how a control currently reads. */
export interface PresenterStripState {
    snapshot: PresentationSnapshot;
    /** Whether the audience-display window is open (the `audience` toggle). */
    audienceOpen: boolean;
}
/**
 * Whether a strip control id names an annotation tool.
 *
 * A type guard rather than a cast at the call site: the console dispatches on
 * the shared inventory's `string` ids, and narrowing here is what keeps
 * `setTool` free of an unchecked assertion.
 */
export declare function isPresenterPointerTool(id: string): id is PresentationPointerTool;
/**
 * Whether a control currently reads as "on".
 *
 * Drives `aria-pressed` and the active styling for the toggles, and the
 * icon/label swap for the two slots whose appearance genuinely changes with
 * state (the timer shows a play glyph while paused, the audience toggle renames
 * itself once a display is open).
 */
export declare function presenterControlActive(id: string, state: PresenterStripState): boolean;
/**
 * Whether a control is unavailable.
 *
 * Only "swap displays", which needs a second window to swap with; React
 * disables it the same way. Everything else stays live, deliberately including
 * Next on the last slide (see the shared `presenterNextDisabled`).
 */
export declare function presenterControlDisabled(id: string, state: PresenterStripState): boolean;
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