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React wrapper around Tether, a positioning engine to make overlays, tooltips and dropdowns better

npm install react-tether

As of version 2, a minimum of React 16.3 is required. If you need support for React < 16.3 please use the 1.x branch.

import TetherComponent from "react-tether";

class SimpleDemo extends React.Component {
	constructor(props) {
		super(props);
		this.state = {
			isOpen: false,
		};
	}

	render() {
		const { isOpen } = this.state;

		return (
			<TetherComponent
				attachment="top center"
				constraints={[
					{
						to: "scrollParent",
						attachment: "together",
					},
				]}
				/* renderTarget: This is what the item will be tethered to, make sure to attach the ref */
				renderTarget={(ref) => (
					<button
						ref={ref}
						onClick={() => {
							this.setState({ isOpen: !isOpen });
						}}
					>
						Toggle Tethered Content
					</button>
				)}
				/* renderElement: If present, this item will be tethered to the the component returned by renderTarget */
				renderElement={(ref) =>
					isOpen && (
						<div ref={ref}>
							<h2>Tethered Content</h2>
							<p>A paragraph to accompany the title.</p>
						</div>
					)
				}
			/>
		);
	}
}

This is a render prop, the component returned from this function will be Tether's target. One argument, ref, is passed into this function. This is a ref that must be attached to the highest possible DOM node in the tree. If this is not done the element will not render.

This is a render prop, the component returned from this function will be Tether's element, that will be moved. If no component is returned, the target will still render, but with no element tethered. One argument, ref, is passed into this function. This is a ref that must be attached to the highest possible DOM node in the tree. If this is not done the element will not render.

The tag that is used to render the Tether element, defaults to div.

Where in the DOM the Tether element is appended. Passes in any valid selector to document.querySelector. Defaults to document.body.

Tether requires this element to be position: static;, otherwise it will default to document.body. See this example for more information.

Any valid Tether options.

Previous versions of react-tether used children to render the target and component, using children will now throw an error. Please use renderTarget and renderElement instead

The following methods are exposed on the component instance:

• getTetherInstance(): Tether
• disable(): void
• enable(): void
• on(event: string, handler: function, ctx: any): void
• once(event: string, handler: function, ctx: any): void
• off(event: string, handler: function): void
• position(): void

<TetherComponent
	ref={(tether) => (this.tether = tether)}
	renderTarget={(ref) => <Target ref={ref} />}
	renderElement={(ref) => (
		<Element ref={ref} onResize={() => this.tether && this.tether.position()} />
	)}
/>

clone repo

git clone git@github.com:danreeves/react-tether.git

move into folder

cd ~/react-tether

install dependencies

npm install

run dev mode

npm run demo

open your browser and visit: http://localhost:1234/