getElementsPositionInDocument() — astro Function Reference

Source Code

packages/astro/src/runtime/client/dev-toolbar/apps/utils/highlight.ts lines 29–44

export function getElementsPositionInDocument(el: Element) {
	let isFixed = false;
	let current: Element | ParentNode | null = el;
	while (current instanceof Element) {
		// all the way up the tree. We are only doing so when the app initializes, so the cost is one-time
		// If perf becomes an issue we'll want to refactor this somehow so that it reads this info in a rAF
		let style = getComputedStyle(current);
		if (style.position === 'fixed') {
			isFixed = true;
		}
		current = current.parentNode;
	}
	return {
		isFixed,
	};
}