29 lines
949 B
JavaScript
29 lines
949 B
JavaScript
export const zeroGap = {
|
|
left: 0,
|
|
top: 0,
|
|
right: 0,
|
|
gap: 0,
|
|
};
|
|
const parse = (x) => parseInt(x || '', 10) || 0;
|
|
const getOffset = (gapMode) => {
|
|
const cs = window.getComputedStyle(document.body);
|
|
const left = cs[gapMode === 'padding' ? 'paddingLeft' : 'marginLeft'];
|
|
const top = cs[gapMode === 'padding' ? 'paddingTop' : 'marginTop'];
|
|
const right = cs[gapMode === 'padding' ? 'paddingRight' : 'marginRight'];
|
|
return [parse(left), parse(top), parse(right)];
|
|
};
|
|
export const getGapWidth = (gapMode = 'margin') => {
|
|
if (typeof window === 'undefined') {
|
|
return zeroGap;
|
|
}
|
|
const offsets = getOffset(gapMode);
|
|
const documentWidth = document.documentElement.clientWidth;
|
|
const windowWidth = window.innerWidth;
|
|
return {
|
|
left: offsets[0],
|
|
top: offsets[1],
|
|
right: offsets[2],
|
|
gap: Math.max(0, windowWidth - documentWidth + offsets[2] - offsets[0]),
|
|
};
|
|
};
|