@1771technologies/lytenyte-pro
Version:
Blazingly fast headless React data grid with 100s of features.
39 lines (38 loc) • 1.65 kB
JavaScript
export const transformOrigin = (options) => ({
name: "transformOrigin",
options,
fn(data) {
const { placement, rects, middlewareData } = data;
const cannotCenterArrow = middlewareData.arrow?.centerOffset !== 0;
const isArrowHidden = cannotCenterArrow;
const arrowWidth = isArrowHidden ? 0 : options.arrowWidth;
const arrowHeight = isArrowHidden ? 0 : options.arrowHeight;
const [placedSide, placedAlign] = getSideAndAlignFromPlacement(placement);
const noArrowAlign = { start: "0%", center: "50%", end: "100%" }[placedAlign];
const arrowXCenter = (middlewareData.arrow?.x ?? 0) + arrowWidth / 2;
const arrowYCenter = (middlewareData.arrow?.y ?? 0) + arrowHeight / 2;
let x = "";
let y = "";
if (placedSide === "bottom") {
x = isArrowHidden ? noArrowAlign : `${arrowXCenter}px`;
y = `${-arrowHeight}px`;
}
else if (placedSide === "top") {
x = isArrowHidden ? noArrowAlign : `${arrowXCenter}px`;
y = `${rects.floating.height + arrowHeight}px`;
}
else if (placedSide === "right") {
x = `${-arrowHeight}px`;
y = isArrowHidden ? noArrowAlign : `${arrowYCenter}px`;
}
else if (placedSide === "left") {
x = `${rects.floating.width + arrowHeight}px`;
y = isArrowHidden ? noArrowAlign : `${arrowYCenter}px`;
}
return { data: { x, y } };
},
});
function getSideAndAlignFromPlacement(placement) {
const [side, align = "center"] = placement.split("-");
return [side, align];
}