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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | 1x 8x 8x 8x 8x 8x 4x 4x 4x 4x 4x 4x 4x 8x 8x 8x 8x 8x 8x 8x 5x 6x 6x 5x 8x 8x 8x 5x | import React, { type JSX, useCallback, useEffect, useMemo, useRef, useState } from 'react';
import { useTheme } from '@mui/material';
import ClusterBadge from './ClusterBadge';
import TimelineDot from './TimelineDot';
import TimelineRail from './TimelineRail';
import { DEFAULT_CLUSTER_THRESHOLD_PX, buildLayout } from './layout';
import './styles.scss';
import type { TimelineNode, TimelineSliderV2Mark } from './types';
export type { TimelineSliderV2Mark };
export type TimelineSliderV2Props = {
clusterThresholdPx?: number;
labelEnd?: string;
labelStart?: string;
marks: TimelineSliderV2Mark[];
onSelect?: (markId: string) => void;
selectedMarkId?: string;
};
const TimelineSliderV2 = ({
clusterThresholdPx = DEFAULT_CLUSTER_THRESHOLD_PX,
labelEnd,
labelStart,
marks,
onSelect,
selectedMarkId,
}: TimelineSliderV2Props): JSX.Element => {
const theme = useTheme();
const containerRef = useRef<HTMLDivElement | null>(null);
const [containerWidth, setContainerWidth] = useState(0);
const [expandedClusterId, setExpandedClusterId] = useState<string>();
useEffect(() => {
const node = containerRef.current;
Iif (node === null) {
return;
}
const measure = () => setContainerWidth(node.clientWidth);
measure();
const observer = new ResizeObserver(measure);
observer.observe(node);
return () => observer.disconnect();
}, []);
const layout = useMemo(
() => buildLayout({ containerWidth, expandedClusterId, marks, thresholdPx: clusterThresholdPx }),
[clusterThresholdPx, containerWidth, expandedClusterId, marks]
);
useEffect(() => {
Iif (containerWidth > 0 && expandedClusterId !== undefined && layout.band === undefined) {
setExpandedClusterId(undefined);
}
}, [containerWidth, expandedClusterId, layout.band]);
const selectedLabel = useMemo(() => marks.find((mark) => mark.id === selectedMarkId)?.label, [marks, selectedMarkId]);
const markNames = useMemo(() => new Map(marks.map((mark) => [mark.id, mark.ariaLabel ?? mark.label])), [marks]);
const nodeAriaLabel = useCallback(
(node: TimelineNode): string | undefined => {
const names = node.markIds
.map((markId) => markNames.get(markId))
.filter((name): name is string => name !== undefined);
return names.length > 0 ? names.join(', ') : undefined;
},
[markNames]
);
const handleNodeClick = useCallback(
(node: TimelineNode) => {
if (node.markIds.length > 1) {
setExpandedClusterId(node.id);
} else {
onSelect?.(node.markIds[0]);
}
},
[onSelect]
);
const handleCollapse = useCallback(() => setExpandedClusterId(undefined), []);
return (
<div className='timeline-v2'>
<div className='timeline-v2-label' style={{ marginRight: theme.spacing(2) }}>
{labelStart}
</div>
<div className='timeline-v2-container' ref={containerRef}>
<TimelineRail />
{layout.band && (
<>
<div
className='timeline-v2-band'
style={{ left: `${layout.band.leftPx}px`, width: `${layout.band.widthPx}px` }}
/>
<ClusterBadge
count={layout.band.memberCount}
leftPx={layout.band.leftPx + layout.band.widthPx / 2}
onClose={handleCollapse}
/>
</>
)}
{layout.nodes.map((node) => (
<TimelineDot
key={node.id}
ariaLabel={nodeAriaLabel(node)}
colorWeights={node.colorWeights}
dimmed={node.dimmed}
leftPx={node.leftPx}
markCount={node.markIds.length}
onClick={() => handleNodeClick(node)}
selected={selectedMarkId !== undefined && node.markIds.includes(selectedMarkId)}
sizePx={node.sizePx}
/>
))}
</div>
<div className='timeline-v2-label' style={{ marginLeft: theme.spacing(2) }}>
{labelEnd}
</div>
{selectedLabel && <div className='timeline-v2-selected-label'>{selectedLabel}</div>}
</div>
);
};
export default TimelineSliderV2;
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