@clayui/shared
Version:
ClayShared component
50 lines (49 loc) • 1.55 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var observeRect_exports = {};
__export(observeRect_exports, {
observeRect: () => observeRect
});
module.exports = __toCommonJS(observeRect_exports);
const rectAttrs = [
"bottom",
"height",
"left",
"right",
"top",
"width"
];
function rectChanged(a = {}, b = {}) {
return rectAttrs.some((prop) => a[prop] !== b[prop]);
}
let rafId;
function run(node, state) {
const newRect = node.getBoundingClientRect();
if (rectChanged(newRect, state.rect)) {
state.rect = newRect;
state.callback(state.rect);
}
rafId = window.requestAnimationFrame(() => run(node, state));
}
function observeRect(node, callback) {
run(node, { callback, hasRectChanged: false, rect: void 0 });
return () => {
cancelAnimationFrame(rafId);
};
}