@aplus-frontend/antdv
Version:
Vue basic component library maintained based on ant-design-vue
62 lines (61 loc) • 1.98 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.isSamePoint = isSamePoint;
exports.monitorResize = monitorResize;
exports.restoreFocus = restoreFocus;
var _contains = _interopRequireDefault(require("../vc-util/Dom/contains"));
var _resizeObserverPolyfill = _interopRequireDefault(require("resize-observer-polyfill"));
function isSamePoint(prev, next) {
if (prev === next) return true;
if (!prev || !next) return false;
if ('pageX' in next && 'pageY' in next) {
return prev.pageX === next.pageX && prev.pageY === next.pageY;
}
if ('clientX' in next && 'clientY' in next) {
return prev.clientX === next.clientX && prev.clientY === next.clientY;
}
return false;
}
function restoreFocus(activeElement, container) {
// Focus back if is in the container
if (activeElement !== document.activeElement && (0, _contains.default)(container, activeElement) && typeof activeElement.focus === 'function') {
activeElement.focus();
}
}
function monitorResize(element, callback) {
let prevWidth = null;
let prevHeight = null;
function onResize(_ref) {
let [{
target
}] = _ref;
if (!document.documentElement.contains(target)) return;
const {
width,
height
} = target.getBoundingClientRect();
const fixedWidth = Math.floor(width);
const fixedHeight = Math.floor(height);
if (prevWidth !== fixedWidth || prevHeight !== fixedHeight) {
// https://webkit.org/blog/9997/resizeobserver-in-webkit/
Promise.resolve().then(() => {
callback({
width: fixedWidth,
height: fixedHeight
});
});
}
prevWidth = fixedWidth;
prevHeight = fixedHeight;
}
const resizeObserver = new _resizeObserverPolyfill.default(onResize);
if (element) {
resizeObserver.observe(element);
}
return () => {
resizeObserver.disconnect();
};
}