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+19
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import * as React from 'react';
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import type { SizeInfo } from '.';
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type onCollectionResize = (size: SizeInfo, element: HTMLElement, data: any) => void;
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export declare const CollectionContext: React.Context<onCollectionResize>;
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export interface ResizeInfo {
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size: SizeInfo;
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data: any;
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element: HTMLElement;
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}
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export interface CollectionProps {
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/** Trigger when some children ResizeObserver changed. Collect by frame render level */
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onBatchResize?: (resizeInfo: ResizeInfo[]) => void;
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children?: React.ReactNode;
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}
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/**
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* Collect all the resize event from children ResizeObserver
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*/
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export declare function Collection({ children, onBatchResize }: CollectionProps): React.JSX.Element;
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export {};
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+34
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import * as React from 'react';
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export const CollectionContext = /*#__PURE__*/React.createContext(null);
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/**
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* Collect all the resize event from children ResizeObserver
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*/
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export function Collection({
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children,
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onBatchResize
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}) {
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const resizeIdRef = React.useRef(0);
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const resizeInfosRef = React.useRef([]);
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const onCollectionResize = React.useContext(CollectionContext);
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const onResize = React.useCallback((size, element, data) => {
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resizeIdRef.current += 1;
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const currentId = resizeIdRef.current;
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resizeInfosRef.current.push({
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size,
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element,
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data
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});
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Promise.resolve().then(() => {
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if (currentId === resizeIdRef.current) {
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onBatchResize?.(resizeInfosRef.current);
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resizeInfosRef.current = [];
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}
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});
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// Continue bubbling if parent exist
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onCollectionResize?.(size, element, data);
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}, [onBatchResize, onCollectionResize]);
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return /*#__PURE__*/React.createElement(CollectionContext.Provider, {
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value: onResize
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}, children);
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}
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Generated
Vendored
+7
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import * as React from 'react';
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import type { ResizeObserverProps } from '..';
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export interface SingleObserverProps extends ResizeObserverProps {
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children: React.ReactElement | ((ref: React.RefObject<Element>) => React.ReactElement);
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}
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declare const RefSingleObserver: React.ForwardRefExoticComponent<SingleObserverProps & React.RefAttributes<HTMLElement>>;
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export default RefSingleObserver;
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Generated
Vendored
+43
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import { getDOM } from "@rc-component/util/es/Dom/findDOMNode";
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import { supportRef, useComposeRef, getNodeRef } from "@rc-component/util/es/ref";
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import * as React from 'react';
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import { CollectionContext } from "../Collection";
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import useResizeObserver from "../useResizeObserver";
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function SingleObserver(props, ref) {
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const {
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children,
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disabled,
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onResize,
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data
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} = props;
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const elementRef = React.useRef(null);
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const onCollectionResize = React.useContext(CollectionContext);
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// =========================== Children ===========================
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const isRenderProps = typeof children === 'function';
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const mergedChildren = isRenderProps ? children(elementRef) : children;
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// ============================= Ref ==============================
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const canRef = !isRenderProps && /*#__PURE__*/React.isValidElement(mergedChildren) && supportRef(mergedChildren);
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const originRef = canRef ? getNodeRef(mergedChildren) : null;
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const mergedRef = useComposeRef(originRef, elementRef);
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const getDomElement = () => {
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return getDOM(elementRef.current);
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};
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React.useImperativeHandle(ref, () => getDomElement());
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// =========================== Observe ============================
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useResizeObserver(!disabled, getDomElement, onResize, (sizeInfo, target) => {
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onCollectionResize?.(sizeInfo, target, data);
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});
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// ============================ Render ============================
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return canRef ? /*#__PURE__*/React.cloneElement(mergedChildren, {
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ref: mergedRef
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}) : mergedChildren;
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}
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const RefSingleObserver = /*#__PURE__*/React.forwardRef(SingleObserver);
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if (process.env.NODE_ENV !== 'production') {
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RefSingleObserver.displayName = 'SingleObserver';
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}
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export default RefSingleObserver;
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+26
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import * as React from 'react';
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import { Collection } from './Collection';
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import { _rs } from './utils/observerUtil';
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export {
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/** @private Test only for mock trigger resize event */
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_rs, };
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export { default as useResizeObserver } from './useResizeObserver';
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export interface SizeInfo {
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width: number;
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height: number;
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offsetWidth: number;
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offsetHeight: number;
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}
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export type OnResize = (size: SizeInfo, element: HTMLElement) => void;
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export interface ResizeObserverProps {
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/** Pass to ResizeObserver.Collection with additional data */
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data?: any;
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children: React.ReactNode | ((ref: React.RefObject<any>) => React.ReactElement);
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disabled?: boolean;
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/** Trigger if element resized. Will always trigger when first time render. */
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onResize?: OnResize;
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}
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declare const RefResizeObserver: React.ForwardRefExoticComponent<ResizeObserverProps & React.RefAttributes<any>> & {
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Collection: typeof Collection;
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};
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export default RefResizeObserver;
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function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
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import * as React from 'react';
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import toArray from "@rc-component/util/es/Children/toArray";
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import { warning } from "@rc-component/util/es/warning";
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import SingleObserver from "./SingleObserver";
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import { Collection } from "./Collection";
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const INTERNAL_PREFIX_KEY = 'rc-observer-key';
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import { _rs } from "./utils/observerUtil";
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export { /** @private Test only for mock trigger resize event */
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_rs };
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export { default as useResizeObserver } from "./useResizeObserver";
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function ResizeObserver(props, ref) {
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const {
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children
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} = props;
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const childNodes = typeof children === 'function' ? [children] : toArray(children);
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if (process.env.NODE_ENV !== 'production') {
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if (childNodes.length > 1) {
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warning(false, 'Find more than one child node with `children` in ResizeObserver. Please use ResizeObserver.Collection instead.');
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} else if (childNodes.length === 0) {
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warning(false, '`children` of ResizeObserver is empty. Nothing is in observe.');
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}
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}
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return childNodes.map((child, index) => {
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const key = child?.key || `${INTERNAL_PREFIX_KEY}-${index}`;
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return /*#__PURE__*/React.createElement(SingleObserver, _extends({}, props, {
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key: key,
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ref: index === 0 ? ref : undefined
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}), child);
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});
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}
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const RefResizeObserver = /*#__PURE__*/React.forwardRef(ResizeObserver);
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if (process.env.NODE_ENV !== 'production') {
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RefResizeObserver.displayName = 'ResizeObserver';
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}
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RefResizeObserver.Collection = Collection;
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export default RefResizeObserver;
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Generated
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+2
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import type { OnResize } from '.';
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export default function useResizeObserver(enabled: boolean, getTarget: HTMLElement | (() => HTMLElement), onDelayResize?: OnResize, onSyncResize?: OnResize): void;
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Generated
Vendored
+81
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import * as React from 'react';
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import { observe, unobserve } from "./utils/observerUtil";
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import { useEvent } from '@rc-component/util';
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export default function useResizeObserver(enabled, getTarget, onDelayResize, onSyncResize) {
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// ============================= Size =============================
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const sizeRef = React.useRef({
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width: -1,
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height: -1,
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offsetWidth: -1,
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offsetHeight: -1
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});
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// =========================== Observe ============================
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// Handler
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const onInternalResize = useEvent(target => {
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const {
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width,
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height
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} = target.getBoundingClientRect();
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const {
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offsetWidth,
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offsetHeight
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} = target;
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/**
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* Resize observer trigger when content size changed.
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* In most case we just care about element size,
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* let's use `boundary` instead of `contentRect` here to avoid shaking.
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*/
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const fixedWidth = Math.floor(width);
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const fixedHeight = Math.floor(height);
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if (sizeRef.current.width !== fixedWidth || sizeRef.current.height !== fixedHeight || sizeRef.current.offsetWidth !== offsetWidth || sizeRef.current.offsetHeight !== offsetHeight) {
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const size = {
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width: fixedWidth,
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height: fixedHeight,
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offsetWidth,
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offsetHeight
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};
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sizeRef.current = size;
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// IE is strange, right?
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const mergedOffsetWidth = offsetWidth === Math.round(width) ? width : offsetWidth;
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const mergedOffsetHeight = offsetHeight === Math.round(height) ? height : offsetHeight;
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const sizeInfo = {
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...size,
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offsetWidth: mergedOffsetWidth,
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offsetHeight: mergedOffsetHeight
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};
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// Call the callback immediately, let the caller decide whether to defer
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// onResize(sizeInfo, target);
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onSyncResize?.(sizeInfo, target);
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// defer the callback but not defer to next frame
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Promise.resolve().then(() => {
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onDelayResize?.(sizeInfo, target);
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});
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}
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});
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// Dynamic observe
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const isFuncTarget = typeof getTarget === 'function';
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const funcTargetIdRef = React.useRef(0);
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React.useEffect(() => {
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const target = isFuncTarget ? getTarget() : getTarget;
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if (target && enabled) {
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observe(target, onInternalResize);
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} else if (enabled && isFuncTarget) {
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funcTargetIdRef.current += 1;
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}
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return () => {
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if (target) {
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unobserve(target, onInternalResize);
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}
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};
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}, [enabled,
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// If function target resolves after a parent render, the bumped ref value
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// lets the next render re-run this effect without watching the function identity.
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isFuncTarget ? funcTargetIdRef.current : getTarget]);
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}
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Generated
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+7
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export type ResizeListener = (element: Element) => void;
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declare function onResize(entities: ResizeObserverEntry[]): void;
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export declare const _el: Map<Element, Set<ResizeListener>>;
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export declare const _rs: typeof onResize;
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export declare function observe(element: Element, callback: ResizeListener): void;
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export declare function unobserve(element: Element, callback: ResizeListener): void;
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export {};
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Generated
Vendored
+41
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// =============================== Const ===============================
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const elementListeners = new Map();
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function onResize(entities) {
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entities.forEach(entity => {
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const {
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target
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} = entity;
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elementListeners.get(target)?.forEach(listener => listener(target));
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});
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}
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// Delay create ResizeObserver since it's not supported in server side
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let observer;
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function ensureResizeObserver() {
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if (!observer) {
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observer = new ResizeObserver(onResize);
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}
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return observer;
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}
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// Dev env only
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export const _el = process.env.NODE_ENV !== 'production' ? elementListeners : null; // eslint-disable-line
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export const _rs = process.env.NODE_ENV !== 'production' ? onResize : null; // eslint-disable-line
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// ============================== Observe ==============================
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export function observe(element, callback) {
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if (!elementListeners.has(element)) {
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elementListeners.set(element, new Set());
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ensureResizeObserver().observe(element);
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}
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elementListeners.get(element).add(callback);
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}
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export function unobserve(element, callback) {
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if (elementListeners.has(element)) {
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elementListeners.get(element).delete(callback);
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if (!elementListeners.get(element).size) {
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ensureResizeObserver().unobserve(element);
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elementListeners.delete(element);
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}
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}
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}
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