motion-dom

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JavaScript
import { convertBoundingBoxToBox, transformBoxPoints } from '../geometry/conversion.mjs';
import { translateAxis } from '../geometry/delta-apply.mjs';

function measureViewportBox(instance, transformPoint) {
    return convertBoundingBoxToBox(transformBoxPoints(instance.getBoundingClientRect(), transformPoint));
}
function measurePageBox(element, rootProjectionNode, transformPagePoint) {
    const viewportBox = measureViewportBox(element, transformPagePoint);
    const { scroll } = rootProjectionNode;
    if (scroll) {
        translateAxis(viewportBox.x, scroll.offset.x);
        translateAxis(viewportBox.y, scroll.offset.y);
    }
    return viewportBox;
}
const measureDocumentScroll = () => ({
    x: document.documentElement.scrollLeft || document.body?.scrollLeft || 0,
    y: document.documentElement.scrollTop || document.body?.scrollTop || 0,
});

export { measureDocumentScroll, measurePageBox, measureViewportBox };
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