@arco-design/web-react
Version:
Arco Design React UI Library.
71 lines (70 loc) • 2.28 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getScrollElements = exports.isScrollElement = exports.contains = exports.off = exports.on = exports.isServerRendering = void 0;
var constant_1 = require("./constant");
exports.isServerRendering = (function () {
try {
return !(typeof window !== 'undefined' && document !== undefined);
}
catch (e) {
return true;
}
})();
exports.on = (function () {
if (exports.isServerRendering) {
return constant_1.NOOP;
}
return function (element, event, handler, options) {
element && element.addEventListener(event, handler, options || false);
};
})();
exports.off = (function () {
if (exports.isServerRendering) {
return constant_1.NOOP;
}
return function (element, event, handler, options) {
element && element.removeEventListener(event, handler, options || false);
};
})();
var contains = function (root, ele) {
if (!root) {
return false;
}
if (root.contains) {
return root.contains(ele);
}
var node = ele;
while (node) {
if (node === root) {
return true;
}
node = node.parentNode;
}
return false;
};
exports.contains = contains;
var isScrollElement = function (element) {
var clientHeight = element === document.documentElement ? element.clientHeight : element.offsetHeight;
var clientWidth = element === document.documentElement ? element.clientWidth : element.offsetWidth;
return element.scrollHeight > clientHeight || element.scrollWidth > clientWidth;
};
exports.isScrollElement = isScrollElement;
/**
* 从当前节点向上查找所有的滚动元素
* @param container 当前节点
* @param top 查找到 top 节点就终止，不再继续查找
* @returns
*/
var getScrollElements = function (container, top) {
if (top === void 0) { top = document.documentElement; }
var scrollElements = [];
var element = container;
while (element && element !== top) {
if ((0, exports.isScrollElement)(element)) {
scrollElements.push(element);
}
element = element.parentElement;
}
return scrollElements;
};
exports.getScrollElements = getScrollElements;