152 lines
5.7 KiB
Markdown
152 lines
5.7 KiB
Markdown
<div align="center">
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<h1>React-remove-📜</h1>
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<br/>
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dont even scroll
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<br/>
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<a href="https://www.npmjs.com/package/react-remove-scroll">
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<img src="https://img.shields.io/npm/v/react-remove-scroll.svg?style=flat-square" />
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</a>
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<a href="https://travis-ci.org/theKashey/react-remove-scroll">
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<img src="https://img.shields.io/travis/theKashey/react-remove-scroll.svg?style=flat-square" alt="Build status">
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</a>
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<a href="https://www.npmjs.com/package/react-remove-scroll">
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<img src="https://img.shields.io/npm/dm/react-remove-scroll.svg" alt="npm downloads">
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</a>
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<a href="https://bundlephobia.com/result?p=react-remove-scroll">
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<img src="https://img.shields.io/bundlephobia/minzip/react-remove-scroll.svg" alt="bundle size">
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</a>
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<br/>
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</div>
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react-remove-scroll
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====
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[](https://www.npmjs.com/package/react-remove-scroll)
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Disables scroll outside of `children` node.
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- 🖱 mouse and touch devices friendly
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- 📈 vertical and horizontal
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- 📜 removes document scroll bar maintaining it space
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- ✅ support nested scrollable elements
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- 🕳 supports react-portals (uses React Event system)
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- ☠️ it could block literally any scroll anywhere
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# Usage
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Just wrap content, which should be scrollable, and everything else would not.
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```js
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import {RemoveScroll} from 'react-remove-scroll';
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<RemoveScroll>
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Only this content would be scrollable
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</RemoveScroll>
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```
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`RemoveScroll` accept following props
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- `children`
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- `[enabled]` - activate or deactivate component behaviour without removing it.
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- `[allowPinchZoom=false]` - enabled "pinch-n-zoom" behavior. By default it might be prevented. However - pinch and zoom might break "scroll isolation", and __disabled by default__.
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- `[noIsolation=false]` - disables outer event capturing. Event capturing is React friendly and unlikely be a problem.
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But if you are using _shadowbox_ of some sort - you dont need it.
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- `[inert=false]` - ☠️(be careful) disables events the rest of page completely using `pointer-events` except the Lock(+shards).
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React portals not friendly, might lead to production issues. Enable only for __rare__ cases, when you have to disable scrollbars somewhere on the page(except body, Lock and shards).
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- `[forwardProps]` - will forward all props to the `children`
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- `[className]` - className for an internal div
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- `[removeScrollBar]` - to control scroll bar removal. Set to false, if you prefer to keep it (wheel and touch scroll is still disabled).
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# Size
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- (🧩 full) 1.7kb after compression (excluding tslib).
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---
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- (👁 UI) __400b__, visual elements only
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- (🚗 sidecar) 1.5kb, side effects
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```js
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import {sidecar} from "react-remove-scroll";
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import {RemoveScroll} from 'react-remove-scroll/UI';
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const sidecar = sidecar(() => import('react-remove-scroll/sidecar'));
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<RemoveScroll sideCar={sidecar}>
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Will load logic from a sidecar when needed
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</RemoveScroll>
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```
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> Consider setting `-webkit-overflow-scrolling: touch;` on a document level for a proper mobile experience.
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## Internal div
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But default RemoveScroll will create a div to handle and capture events.
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You may specify `className` for it, if you need, or __remove it__.
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The following code samples will produce the same output
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```js
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<RemoveScroll className="scroll">
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Only this content would be scrollable
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</RemoveScroll>
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```
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```js
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<RemoveScroll forwardProps>
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<div className="scroll"> //RemoveScroll will inject props to this div
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Only this content would be scrollable
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</div>
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</RemoveScroll>
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```
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Pick the first one if you don't need a second.
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## Position:fixed elements
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To properly size these elements please add a special className to them.
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```jsx
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import {RemoveScroll} from 'react-remove-scroll';
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// to make "width: 100%"
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<div className={cx(classWithPositionFixed, RemoveScroll.classNames.fullWidth)} />
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// to make "right:0"
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<div className={cx(classWithPositionFixed, RemoveScroll.classNames.zeroRight)} />
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```
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See [react-remove-scroll-bar](https://github.com/theKashey/react-remove-scroll-bar) documentation for details.
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## More than one lock
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When stacked more is active (default) only one (last) component would be active.
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## Over isolation
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That could happen -
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you disable scroll on the body,
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you are suppressing all scroll and wheel events,
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and you are ghosting the rest of the page by the `inert` prop.
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Only something inside Lock does exists for the browser, and that might be less than you expected.
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Dont forget about `shard`, dont forget - `inert` is not portals friendly, dont forget - you dont need over isolation in most of the cases.
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> just be careful!
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# Performance
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To do the job this library setup _non_ passive event listener. Chrome dev tools would complain about it, as a
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performance no-op.
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We have to use synchronous scroll/touch handler, and it may affect scrolling performance.
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Consider using `noIsolation` mode, if you have large scrollable areas.
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# Supported React versions
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- v1 supports React 15/16
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- v2 requires 16.8.0+ (hooks)
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# Scroll-Locky
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This is a refactoring of another library - [react-scroll-locky](https://github.com/theKashey/react-scroll-locky) -
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to make package smaller and more react-portals friendly.
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## See also
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- [react-focus-on](https://github.com/theKashey/react-focus-on) - Finite Modal creator (uses Scroll-Locky) underneath.
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- [react-locky](https://github.com/theKashey/react-locky) - React event canceler
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- [react-scrolllock](https://github.com/jossmac/react-scrolllock) - React scroll lock
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- [scroll-lock](https://github.com/FL3NKEY/scroll-lock) - DOM scroll lock
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- [body-scroll-lock](https://github.com/willmcpo/body-scroll-lock) - DOM scroll lock
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> This package is relative smaller(1), more react friendly(2), works with non zero body margins(3), and has a better "overscroll" management.
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# License
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MIT |