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import { useEffect, useRef, type RefObject } from "react";
import { useEditor } from "@/editor/use-editor";
import {
SeekController,
type SeekConfig,
} from "@/timeline/controllers/seek-controller";
interface UseTimelineSeekProps {
playheadRef: RefObject<HTMLDivElement | null>;
trackLabelsRef: RefObject<HTMLDivElement | null>;
rulerScrollRef: RefObject<HTMLDivElement | null>;
tracksScrollRef: RefObject<HTMLDivElement | null>;
zoomLevel: number;
duration: number;
isSelecting: boolean;
clearSelectedElements: () => void;
seek: (time: number) => void;
}
export function useTimelineSeek({
playheadRef,
trackLabelsRef,
rulerScrollRef,
tracksScrollRef,
zoomLevel,
duration,
isSelecting,
clearSelectedElements,
seek,
}: UseTimelineSeekProps) {
const editor = useEditor();
const config: SeekConfig = {
zoomLevel,
duration,
isSelecting,
getPlayheadEl: () => playheadRef.current,
getTrackLabelsEl: () => trackLabelsRef.current,
getRulerScrollEl: () => rulerScrollRef.current,
getTracksScrollEl: () => tracksScrollRef.current,
getActiveProjectFps: () => editor.project.getActive()?.settings.fps ?? null,
clearSelectedElements,
seek,
setTimelineViewState: (viewState) =>
editor.project.setTimelineViewState({ viewState }),
};
const configRef = useRef(config);
configRef.current = config;
const controllerRef = useRef<SeekController | null>(null);
if (!controllerRef.current) {
controllerRef.current = new SeekController({ configRef });
}
const controller = controllerRef.current;
useEffect(() => () => controller.destroy(), [controller]);
return {
handleTracksMouseDown: controller.onTracksMouseDown,
handleTracksClick: controller.onTracksClick,
handleRulerMouseDown: controller.onRulerMouseDown,
handleRulerClick: controller.onRulerClick,
};
}
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