2026-03-31 11:31:22 +02:00

93 lines
2.6 KiB
TypeScript

import { memo, useEffect, useRef, useState } from '../../lib/teact/teact';
import type { TabWithProperties } from './SquareTabList';
export type { TabWithProperties };
import buildClassName from '../../util/buildClassName';
import useHorizontalScroll from '../../hooks/useHorizontalScroll';
import useLastCallback from '../../hooks/useLastCallback';
import useResizeObserver from '../../hooks/useResizeObserver';
import Icon from '../common/icons/Icon';
import styles from './TabList.module.scss';
type OwnProps = {
tabs: readonly TabWithProperties[];
activeTab: number;
className?: string;
onSwitchTab: (index: number) => void;
};
const TabList = ({
tabs,
activeTab,
className,
onSwitchTab,
}: OwnProps) => {
const containerRef = useRef<HTMLDivElement>();
const clipPathContainerRef = useRef<HTMLDivElement>();
const [clipPath, setClipPath] = useState<string>('');
useHorizontalScroll(containerRef, !tabs.length, true);
const updateClipPath = useLastCallback(() => {
const clipPathContainer = clipPathContainerRef.current;
const activeTabEl = activeTab >= 0 && clipPathContainer?.childNodes[activeTab] as HTMLElement | undefined;
if (clipPathContainer && activeTabEl && clipPathContainer.offsetWidth > 0) {
const { offsetLeft, offsetWidth } = activeTabEl;
const containerWidth = clipPathContainer.offsetWidth;
const left = (offsetLeft / containerWidth * 100).toFixed(1);
const right = ((containerWidth - (offsetLeft + offsetWidth)) / containerWidth * 100).toFixed(1);
setClipPath(`inset(0.25rem ${right}% 0.25rem ${left}% round 1.25rem)`);
}
});
useEffect(() => {
updateClipPath();
}, [activeTab, tabs]);
useResizeObserver(clipPathContainerRef, updateClipPath);
const handleTabClick = useLastCallback((index: number) => {
onSwitchTab(index);
});
if (!tabs.length) return undefined;
const renderTab = (tab: TabWithProperties, index: number) => (
<div
key={tab.id ?? index}
className={styles.tab}
onClick={() => handleTabClick(index)}
>
{tab.title}
{tab.isBlocked && <Icon name="lock-badge" className={styles.lockIcon} />}
</div>
);
return (
<div
ref={containerRef}
className={buildClassName(styles.container, className, clipPath && styles.ready)}
>
{tabs.map(renderTab)}
<div
ref={clipPathContainerRef}
className={styles.activeIndicator}
style={clipPath ? `clip-path: ${clipPath}` : undefined}
aria-hidden
>
{tabs.map(renderTab)}
</div>
</div>
);
};
export default memo(TabList);