import * as React from 'react';
import { useFluent_unstable } from '@fluentui/react-shared-contexts';
import { ChevronRight12Regular } from '@fluentui/react-icons';
import { durations, curves } from '@fluentui/react-motion';
import { useTreeItemContext_unstable } from '../contexts/treeItemContext';
export const TreeItemChevron = /*#__PURE__*/ React.memo(()=>{
    const open = useTreeItemContext_unstable((ctx)=>ctx.open);
    const { dir } = useFluent_unstable();
    const expandIconRotation = open ? 90 : dir !== 'rtl' ? 0 : 180;
    return /*#__PURE__*/ React.createElement(ChevronRight12Regular, {
        style: {
            ...expandIconInlineStyles[expandIconRotation],
            transition: `transform ${durations.durationNormal}ms ${curves.curveEasyEaseMax}`
        }
    });
});
TreeItemChevron.displayName = 'TreeItemChevron';
const expandIconInlineStyles = {
    90: {
        transform: `rotate(90deg)`
    },
    0: {
        transform: `rotate(0deg)`
    },
    180: {
        transform: `rotate(180deg)`
    }
};