/
OverlayTrigger.tsx
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/
OverlayTrigger.tsx
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import contains from 'dom-helpers/contains';
import PropTypes from 'prop-types';
import React, { cloneElement, useCallback, useRef } from 'react';
import safeFindDOMNode from 'react-overlays/safeFindDOMNode';
import warning from 'warning';
import { useUncontrolledProp } from 'uncontrollable';
import Overlay, { OverlayChildren, OverlayProps } from './Overlay';
import useDelayToggleCallback from './useDelayToggleCallback';
export type OverlayTriggerType = 'hover' | 'click' | 'focus';
export type OverlayDelay = number | { show: number; hide: number };
export type OverlayInjectedProps = {
onFocus?: (...args: any[]) => any;
};
export type OverlayTriggerRenderProps = OverlayInjectedProps & {
ref: React.Ref<any>;
};
export interface OverlayTriggerProps
extends Omit<OverlayProps, 'children' | 'target'> {
children:
| React.ReactElement
| ((props: OverlayTriggerRenderProps) => React.ReactNode);
trigger?: OverlayTriggerType | OverlayTriggerType[];
delay?: OverlayDelay;
globalDelay?: boolean;
show?: boolean;
defaultShow?: boolean;
onToggle?: (nextShow: boolean) => void;
flip?: boolean;
overlay: OverlayChildren;
target?: never;
onHide?: never;
}
class RefHolder extends React.Component {
render() {
return this.props.children;
}
}
const normalizeDelay = (delay: OverlayDelay): [number, number] =>
typeof delay === 'object' ? [delay.show, delay.hide] : [delay, delay];
// Simple implementation of mouseEnter and mouseLeave.
// React's built version is broken: https://github.com/facebook/react/issues/4251
// for cases when the trigger is disabled and mouseOut/Over can cause flicker
// moving from one child element to another.
function handleMouseOverOut(
handler: (...args: [React.MouseEvent, ...any[]]) => any,
args: [React.MouseEvent, ...any[]],
relatedNative: 'fromElement' | 'toElement',
) {
const [e] = args;
const target = e.currentTarget;
const related = e.relatedTarget || e.nativeEvent[relatedNative];
if ((!related || related !== target) && !contains(target, related)) {
handler(...args);
}
}
const triggerType = PropTypes.oneOf(['click', 'hover', 'focus']);
const propTypes = {
children: PropTypes.element.isRequired,
/**
* Specify which action or actions trigger Overlay visibility
*
* @type {'hover' | 'click' |'focus' | Array<'hover' | 'click' |'focus'>}
*/
trigger: PropTypes.oneOfType([triggerType, PropTypes.arrayOf(triggerType)]),
/**
* A millisecond delay amount to show and hide the Overlay once triggered
*/
delay: PropTypes.oneOfType([
PropTypes.number,
PropTypes.shape({
show: PropTypes.number,
hide: PropTypes.number,
}),
]),
/**
* The visibility of the Overlay. `show` is a _controlled_ prop so should be paired
* with `onToggle` to avoid breaking user interactions.
*
* Manually toggling `show` does **not** wait for `delay` to change the visibility.
*
* @controllable onToggle
*/
show: PropTypes.bool,
/**
* The initial visibility state of the Overlay.
*/
defaultShow: PropTypes.bool,
/**
* A callback that fires when the user triggers a change in tooltip visibility.
*
* `onToggle` is called with the desired next `show`, and generally should be passed
* back to the `show` prop. `onToggle` fires _after_ the configured `delay`
*
* @controllable `show`
*/
onToggle: PropTypes.func,
/**
The initial flip state of the Overlay.
*/
flip: PropTypes.bool,
/**
* An element or text to overlay next to the target.
*/
overlay: PropTypes.oneOfType([PropTypes.func, PropTypes.element.isRequired]),
/**
* A Popper.js config object passed to the the underlying popper instance.
*/
popperConfig: PropTypes.object,
// Overridden props from `<Overlay>`.
/**
* @private
*/
target: PropTypes.oneOf([null]),
/**
* @private
*/
onHide: PropTypes.oneOf([null]),
/**
* The placement of the Overlay in relation to it's `target`.
*/
placement: PropTypes.oneOf([
'auto-start',
'auto',
'auto-end',
'top-start',
'top',
'top-end',
'right-start',
'right',
'right-end',
'bottom-end',
'bottom',
'bottom-start',
'left-end',
'left',
'left-start',
]),
};
const defaultProps = {
defaultShow: false,
trigger: ['hover', 'focus'],
};
function OverlayTrigger({
trigger,
overlay,
children,
popperConfig = {},
show: propsShow,
defaultShow = false,
onToggle,
delay,
globalDelay = false,
placement,
flip = placement && placement.indexOf('auto') !== -1,
...props
}: OverlayTriggerProps) {
const triggerNodeRef = useRef(null);
const [show, setShow] = useUncontrolledProp(propsShow, defaultShow, onToggle);
const debouncedSetShow = useDelayToggleCallback(
delay == null ? null : normalizeDelay(delay),
setShow,
globalDelay,
);
const { onFocus, onBlur, onClick } =
typeof children !== 'function'
? React.Children.only(children).props
: ({} as any);
const getTarget = useCallback(
() => safeFindDOMNode(triggerNodeRef.current),
[],
);
const handleShow = useCallback(() => {
debouncedSetShow(true);
}, [debouncedSetShow]);
const handleHide = useCallback(() => {
debouncedSetShow(false);
}, [debouncedSetShow]);
const handleFocus = useCallback(
(...args: any[]) => {
handleShow();
onFocus?.(...args);
},
[handleShow, onFocus],
);
const handleBlur = useCallback(
(...args: any[]) => {
handleHide();
onBlur?.(...args);
},
[handleHide, onBlur],
);
const handleClick = useCallback(
(...args: any[]) => {
setShow(!show);
if (onClick) onClick(...args);
},
[onClick, setShow, show],
);
const handleMouseOver = useCallback(
(...args: [React.MouseEvent, ...any[]]) => {
handleMouseOverOut(handleShow, args, 'fromElement');
},
[handleShow],
);
const handleMouseOut = useCallback(
(...args: [React.MouseEvent, ...any[]]) => {
handleMouseOverOut(handleHide, args, 'toElement');
},
[handleHide],
);
const triggers: string[] = trigger == null ? [] : [].concat(trigger as any);
const triggerProps: any = {};
if (triggers.indexOf('click') !== -1) {
triggerProps.onClick = handleClick;
}
if (triggers.indexOf('focus') !== -1) {
triggerProps.onFocus = handleFocus;
triggerProps.onBlur = handleBlur;
}
if (triggers.indexOf('hover') !== -1) {
warning(
triggers.length > 1,
'[react-bootstrap] Specifying only the `"hover"` trigger limits the visibility of the overlay to just mouse users. Consider also including the `"focus"` trigger so that touch and keyboard only users can see the overlay as well.',
);
triggerProps.onMouseOver = handleMouseOver;
triggerProps.onMouseOut = handleMouseOut;
}
return (
<>
{typeof children === 'function' ? (
children({ ...triggerProps, ref: triggerNodeRef })
) : (
<RefHolder ref={triggerNodeRef}>
{cloneElement(children as any, triggerProps)}
</RefHolder>
)}
<Overlay
{...props}
show={show}
onHide={handleHide}
flip={flip}
placement={placement}
popperConfig={popperConfig}
target={getTarget as any}
>
{overlay}
</Overlay>
</>
);
}
OverlayTrigger.propTypes = propTypes;
OverlayTrigger.defaultProps = defaultProps;
export default OverlayTrigger;