# react-modal-hook [![](https://img.shields.io/npm/v/react-modal-hook.svg)](https://www.npmjs.com/package/react-modal-hook) [![](https://img.shields.io/travis/mpontus/react-modal-hook.svg)](https://travis-ci.org/mpontus/react-modal-hook) [![](https://img.shields.io/codecov/c/github/mpontus/react-modal-hook.svg)](https://codecov.io/gh/mpontus/react-modal-hook) [![](https://img.shields.io/npm/dt/react-modal-hook.svg)](https://www.npmjs.com/package/react-modal-hook) > Syntactic sugar for handling modal windows using React Hooks. This library does not provide any UI, but instead offers a convenient way to render modal components defined elsewhere. For a simple modal component check out [`react-modal`](https://github.com/reactjs/react-modal), which works well with this library. [**Demo** (Material-UI)](https://codesandbox.io/s/v8qy4w1j77) ## Table of Contents - [Install](#install) - [Usage](#usage) - [Updating Modals](#updating-modals) - [Animated Modals](#animated-modals) - [License](#license) ## Install ```bash npm install --save react-modal-hook ``` ## Usage Use `ModalProvider` to provide modal context for your application: ```jsx import React from "react"; import ReactDOM from "react-dom"; import { ModalProvider } from "react-modal-hook"; import App from "./App"; ReactDOM.render( , document.getElementById("root") ); ``` Call `useModal` with the dialog component of your choice. Example using [`react-modal`](https://github.com/reactjs/react-modal): ```jsx import React from "react"; import ReactModal from "react-modal"; import { useModal } from "react-modal-hook"; const App = () => { const [showModal, hideModal] = useModal(() => (

Modal content

)); return ; }; ``` ### Updating Modals Second argument to `useModals` should contain an array of values referenced inside the modal: ```jsx const App = () => { const [count, setCount] = useState(0); const [showModal] = useModal( () => ( The count is {count} ), [count] ); return ; }; ``` Modals are also functional components and can use react hooks themselves: ```jsx const App = () => { const [showModal] = useModal(() => { const [count, setCount] = useState(0); return ( The count is {count} ); }); return ; }; ``` ### Animated Modals Use [`TransitionGroup`](https://github.com/reactjs/react-transition-group) as the container for the modals: ```jsx import React from "react"; import ReactDOM from "react-dom"; import { ModalProvider } from "react-modal-hook"; import { TransitionGroup } from "react-transition-group"; import App from "./App"; ReactDOM.render( , document.getElementById("root") ); ``` When `TransitionGroup` detects of one of its children removed, it will set its `in` prop to false and wait for `onExited` callback to be called before removing it from the DOM. Those props are automatically added to all components passed to `useModal`. You can can pass them down to [`CSSTransition`](http://reactcommunity.org/react-transition-group/css-transition/) or modal component with transition support. Here's an example using Material-UI's [`Dialog`](https://material-ui.com/components/dialogs/): ```jsx import React from "react"; import { useModal } from "react-modal-hook"; import { Button, Dialog, DialogActions, DialogTitle } from "@material-ui/core"; const App = () => { const [showModal, hideModal] = useModal(({ in: open, onExited }) => ( )); return ; }; ``` ## License MIT © [mpontus](https://github.com/mpontus)

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