antd
Version:
An enterprise-class UI design language and React components implementation
19 lines • 737 B
JavaScript
export function getTargetRect(target) {
return target !== window ? target.getBoundingClientRect() : {
top: 0,
bottom: window.innerHeight
};
}
export function getFixedTop(placeholderRect, targetRect, offsetTop) {
if (offsetTop !== undefined && Math.round(targetRect.top) > Math.round(placeholderRect.top) - offsetTop) {
return offsetTop + targetRect.top;
}
return undefined;
}
export function getFixedBottom(placeholderRect, targetRect, offsetBottom) {
if (offsetBottom !== undefined && Math.round(targetRect.bottom) < Math.round(placeholderRect.bottom) + offsetBottom) {
const targetBottomOffset = window.innerHeight - targetRect.bottom;
return offsetBottom + targetBottomOffset;
}
return undefined;
}