react-live-route

An enhanced version of react-router-v4 Route Component that keeps route component alive on unmatched path and restore it completely on match path.

Document

中文

Feedback

Feel free to open an issue to ask for help or have a discussion. If there is a detailed code problem help is needed, please fork this minimal demo to provide a reproduce scenario, or your issue might be closed directly due to lack of information.

Demo

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You can experience and review the source code on codeSandbox.


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You also can scan the QR code of the demo above to experience it on mobile device.

!qr

Install

``bash
npm install react-live-route
`

or

`bash
yarn add react-live-route
`

About

It will hide component of route instead of unmout it when the path is not match and restore it when come back. There are a few APIs provided to control the hidden condition of component.

Example：

There is a item list page, click on the items on this page will enter the item detail page. When entering the detail page, item list page will be hidden and it will keep hidden when you are on item detail page. Once back to the list page, the list page will be restored to the last state of leaving.

Features

- ✅ Fully compatible with react-router-v4, all passed the react-router-v4 unit tests.
- 🎯 Completely restored to the state of the last time you left (scroll position included).
- 🔒 Minimally invasive, all you need to do is import LiveRoute.
- ✌️ Super easy API.

Caveat ⚠️

- LiveRoute SHOULD NOT be wrapped by Switch directly, cause Switch only render the first matched child element so that LiveRoute may be skipped directly. You can move LiveRoute from Switch to the outside.
- If LiveRoute's parent route is unmounted on current location, then it will also be unmounted . This is determined by the top-down design principle of React. You can use LiveRoute to declares a parent route to solve this problem or stop nestting the router.
- In some cases the DOM of LiveRoute will be modified directly and the scroll position will not change when navigation. This is not a problem with react-live-route. You can scroll the screen to the top manually and you may get some help from this article from react-router. By the way, if the scroll position will be restored by LiveRoute, it will come up after the scroll operation in componet of LiveRoute due to the render order of React.

Usage

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The class imported from react-live-route must be wrapped by withRouter to touch the property of context to work as expected.

`jsx
import NotLiveRoute from 'react-live-route'
import { withRouter } from 'react-router-dom'

const LiveRoute = withRouter(NotLiveRoute)
`

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#### livePath: (string | string[])

livePath is the path you want to hide the component instead of unmount it. The specific rules of livePath are the same as path props of Route in react-router-v4. You still can use component or render props to render a component.

livePath also can accept an array of string above since 1.2.0. livePath is matched if any string in the array is matched.

LiveRoute will re-render when it come back from a path matching location from the livePath matching location. It will unmount on other unmatched locations.

Example:

The route of List will be rendered normally under /list, and it will be hidden when location change to /user/:id, and it will be unmounted normally when entering other locations.

`tsx
import NotLiveRoute from 'react-live-route'
import { withRouter } from 'react-router-dom'

const LiveRoute = withRouter(NotLiveRoute)


`

#### alwaysLive: boolean

alwaysLive is just like livePath. The difference is the component will not be unmount on any other location after the it's first mount.

Example:

After the first mount on match location, the Modal page will be hidden when the path is not matched, and will re-render when path match again.

`jsx
import NotLiveRoute from 'react-live-route'
import { withRouter } from 'react-router-dom'

const LiveRoute = withRouter(NotLiveRoute)


`

#### onHide: (location, match, history, livePath, alwaysLive) => any

This hook will be triggered when LiveRoute will hide in componentWillReceiveProps stage (so it happens before re-render).

Example of usage is below.

#### onReappear: (location, match, history, livePath, alwaysLive) => any

This hook will be triggered when LiveRoute will reappear from hide in componentWillReceiveProps stage (so it happens before re-render).

`js
import NotLiveRoute from 'react-live-route'
import { withRouter } from 'react-router-dom'

const LiveRoute = withRouter(NotLiveRoute)

path="/items"
component={List}
livePath="/item/:id"
name="items"
onHide={(location, match, livePath, alwaysLive) => {
console.log('[on hide]')
}}
onReappear={(location, match, livePath, alwaysLive) => {
console.log('[on reappear]')
console.log(routeState)
}}
/>
`

#### forceUnmount: (location, match, history, livePath, alwaysLive) => boolean

forceUnmount is funtion that return a boolean value to decide weather to forceUnmount the LiveRoute no matter it is matched or should be kept lived.

For example: when the user id equals to 27, List page will be force unmounted while routing on other value of id will be kept.

`jsx
import NotLiveRoute from 'react-live-route'
import { withRouter } from 'react-router-dom'

const LiveRoute = withRouter(NotLiveRoute)

match.params.id === 27}/>
`

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ensureDidMount is useful when using a route with react-loadable. Cause react-loadable will load the route component asynchronous. So the route component must give a hint to help react-live-route know when the real component is loaded so the DOM could be got.

`jsx
const LoadableItems = Loadable({
loader: () => import("./list"),
loading: () => () =>

xxx


})
`

List item:
`jsx
componentDidMount() {
this.props.ensureDidMount()
}
``

Licence

MIT