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add debounce support for resizeObserver #95

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add debounce support for resizeObserver #95

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29 changes: 19 additions & 10 deletions src/hooks.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,14 @@
import { select } from 'd3-selection';
import { useEffect, useRef, useState } from 'react';
import debounce from 'lodash.debounce';
import ResizeObserver from 'resize-observer-polyfill';

export function useResponsiveSvgSelection(minSize, initialSize, svgAttributes) {
export function useResponsiveSvgSelection(
minSize,
initialSize,
svgAttributes,
debounceTime = 0,
) {
const elementRef = useRef();
const [size, setSize] = useState(initialSize);
const [selection, setSelection] = useState(null);
Expand Down Expand Up @@ -46,16 +52,19 @@ export function useResponsiveSvgSelection(minSize, initialSize, svgAttributes) {
updateSize(width, height);

// Update resize using a resize observer
const resizeObserver = new ResizeObserver(entries => {
if (!entries || entries.length === 0) {
return;
}
const resizeObserver = new ResizeObserver(
debounce((entries) => {
if (!entries || entries.length === 0) {
return;
}

if (initialSize === undefined) {
const { width, height } = entries[0].contentRect;
updateSize(width, height);
}
}, debounceTime)
);

if (initialSize === undefined) {
const { width, height } = entries[0].contentRect;
updateSize(width, height);
}
});
resizeObserver.observe(element);

// Cleanup
Expand Down