37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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// Utilities
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import { onBeforeUnmount, readonly, ref, watch } from 'vue';
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import { refElement } from "../util/index.mjs";
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import { IN_BROWSER } from "../util/globals.mjs"; // Types
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export function useResizeObserver(callback) {
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let box = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'content';
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const resizeRef = ref();
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const contentRect = ref();
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if (IN_BROWSER) {
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const observer = new ResizeObserver(entries => {
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callback?.(entries, observer);
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if (!entries.length) return;
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if (box === 'content') {
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contentRect.value = entries[0].contentRect;
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} else {
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contentRect.value = entries[0].target.getBoundingClientRect();
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}
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});
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onBeforeUnmount(() => {
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observer.disconnect();
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});
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watch(resizeRef, (newValue, oldValue) => {
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if (oldValue) {
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observer.unobserve(refElement(oldValue));
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contentRect.value = undefined;
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}
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if (newValue) observer.observe(refElement(newValue));
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}, {
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flush: 'post'
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});
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}
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return {
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resizeRef,
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contentRect: readonly(contentRect)
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};
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}
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//# sourceMappingURL=resizeObserver.mjs.map
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