41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var tslib_1 = require("tslib");
|
|
var react_1 = require("react");
|
|
var useIsomorphicLayoutEffect_1 = tslib_1.__importDefault(require("./useIsomorphicLayoutEffect"));
|
|
var util_1 = require("./misc/util");
|
|
var defaultState = {
|
|
x: 0,
|
|
y: 0,
|
|
width: 0,
|
|
height: 0,
|
|
top: 0,
|
|
left: 0,
|
|
bottom: 0,
|
|
right: 0,
|
|
};
|
|
function useMeasure() {
|
|
var _a = react_1.useState(null), element = _a[0], ref = _a[1];
|
|
var _b = react_1.useState(defaultState), rect = _b[0], setRect = _b[1];
|
|
var observer = react_1.useMemo(function () {
|
|
return new window.ResizeObserver(function (entries) {
|
|
if (entries[0]) {
|
|
var _a = entries[0].contentRect, x = _a.x, y = _a.y, width = _a.width, height = _a.height, top_1 = _a.top, left = _a.left, bottom = _a.bottom, right = _a.right;
|
|
setRect({ x: x, y: y, width: width, height: height, top: top_1, left: left, bottom: bottom, right: right });
|
|
}
|
|
});
|
|
}, []);
|
|
useIsomorphicLayoutEffect_1.default(function () {
|
|
if (!element)
|
|
return;
|
|
observer.observe(element);
|
|
return function () {
|
|
observer.disconnect();
|
|
};
|
|
}, [element]);
|
|
return [ref, rect];
|
|
}
|
|
exports.default = util_1.isBrowser && typeof window.ResizeObserver !== 'undefined'
|
|
? useMeasure
|
|
: (function () { return [util_1.noop, defaultState]; });
|