import { PptxSlideTransition, PptxTransitionType } from 'pptx-viewer-core';
import { RibbonTransitionDraft } from 'pptx-viewer-shared';
import { EditorState } from './editor-state.svelte';
/**
 * Slide-transition actions for the ribbon's Transitions tab, split out of
 * `EditorState` to keep it under the repo's 300-LOC budget. Playback already
 * reads `PptxSlide.transition` (see `presentation/presentation-controller.svelte.ts`),
 * so this only needs to write that same field, routed through
 * `EditorState.commitSlides` so it is history-integrated (undoable).
 *
 * `applyTransition` covers both the preset gallery buttons and the duration
 * input (the tab re-applies the currently-selected preset whenever the
 * duration changes), plus the "Apply to All Slides" checkbox: when
 * `applyToAll` is true every slide gets the same fresh `{ type, durationMs }`
 * transition; otherwise only the current slide is patched, preserving any
 * advanced fields (direction, sound, ...) it already carried.
 */
export declare class EditorTransitionController {
    #private;
    constructor(editor: EditorState);
    applyTransition(type: PptxTransitionType, durationMs: number, applyToAll: boolean): void;
    /**
     * Commit the Transitions tab's whole draft (preset + duration + the Advance
     * Slide modifiers) in one undoable step.
     *
     * The draft, and what it means for a slide's `p:transition`, is decided in
     * `pptx-viewer-shared` (`ribbon-transitions`) so every binding writes the
     * same fields; this only routes the result through `commitSlides`. Unlike
     * `applyTransition`'s apply-to-all, the draft is MERGED onto each target so a
     * slide keeps its authored direction / spokes / sound.
     */
    applyRibbonDraft(draft: RibbonTransitionDraft, applyToAll: boolean): void;
    /**
     * Merge a raw partial change onto the ACTIVE slide's transition, for
     * controls that write a single field outside the ribbon draft (currently
     * the Sound picker: a freshly-picked file's `soundData` has no equivalent
     * in {@link RibbonTransitionDraft}).
     */
    applyChange(changes: Partial<PptxSlideTransition>): void;
}
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