@attio/react-native-bottom-sheet-toolbox/dist/module/hooks/use-bottom-sheet-direction.js

"use strict";

import { useDerivedValue, useSharedValue } from "react-native-reanimated";
import { useBottomSheetToolboxInternalContext } from "../context";

/**
 * Returns the direction the bottom sheet is moving in.
 * +1 = moving up
 * 0 = not moving
 * -1 = moving down
 */
export function useBottomSheetDirection() {
  const {
    currentPositionSharedValue
  } = useBottomSheetToolboxInternalContext();
  const lastPositionSharedValue = useSharedValue(0);
  return useDerivedValue(() => {
    const currentPosition = currentPositionSharedValue.get();
    const lastPosition = lastPositionSharedValue.get();
    const delta = currentPosition - lastPosition;
    const direction = Math.sign(delta);
    lastPositionSharedValue.set(currentPosition);
    return direction;
  }, [currentPositionSharedValue]);
}
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