antd
Version:
An enterprise-class UI design language and React components implementation
38 lines (37 loc) • 1.43 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.isWindow = exports.default = void 0;
var _is = require("./is");
const isWindow = obj => {
return (0, _is.isNonNullable)(obj) && obj === obj.window;
};
exports.isWindow = isWindow;
const getScroll = target => {
if (typeof window === 'undefined') {
/* istanbul ignore next */
return 0;
}
let result = 0;
if (isWindow(target)) {
result = target.pageYOffset;
} else if (target instanceof Document) {
result = target.documentElement.scrollTop;
} else if (target instanceof HTMLElement) {
result = target.scrollTop;
} else if (target) {
// According to the type inference, the `target` is `never` type.
// Since we configured the loose mode type checking, and supports mocking the target with such shape below::
// `{ documentElement: { scrollLeft: 200, scrollTop: 400 } }`,
// the program may falls into this branch.
// Check the corresponding tests for details. Don't sure what is the real scenario this happens.
/* biome-ignore lint/complexity/useLiteralKeys: target is a never type */ /* eslint-disable-next-line dot-notation */
result = target['scrollTop'];
}
if (target && !isWindow(target) && typeof result !== 'number') {
result = (target.ownerDocument ?? target).documentElement?.scrollTop;
}
return result;
};
var _default = exports.default = getScroll;