@aplus-frontend/antdv
Version:
Vue basic component library maintained based on ant-design-vue
28 lines • 885 B
JavaScript
export default (isScrollAtTop, isScrollAtBottom) => {
// Do lock for a wheel when scrolling
let lock = false;
let lockTimeout = null;
function lockScroll() {
clearTimeout(lockTimeout);
lock = true;
lockTimeout = setTimeout(() => {
lock = false;
}, 50);
}
return function (deltaY) {
let smoothOffset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
const originScroll =
// Pass origin wheel when on the top
deltaY < 0 && isScrollAtTop.value ||
// Pass origin wheel when on the bottom
deltaY > 0 && isScrollAtBottom.value;
if (smoothOffset && originScroll) {
// No need lock anymore when it's smooth offset from touchMove interval
clearTimeout(lockTimeout);
lock = false;
} else if (!originScroll || lock) {
lockScroll();
}
return !lock && originScroll;
};
};