@1stdibs/react-portal 中文文档教程
React-portal
在 React 中与模态框、灯箱或加载条苦苦挣扎? React-portal 创建了一个新的顶级 React 树并将其子树注入其中。 这对于正确的样式(尤其是定位)是必要的。
Features
- transports its child into a new React component and appends it to the document.body (creates a new independent React tree)
- can be opened by the prop isOpened
- can be opened after a click on an element that you pass through the prop openByClickOn (and then it takes care of the open/close state)
- doesn't leave any mess in DOM after closing
- provides its child with this.props.closePortal callback
- provides close on ESC and close on outside mouse click out of the box
- supports absolute positioned components (great for tooltips)
- no dependencies
- fully covered by tests
Demo
尝试 https://miksu.cz/react-portal 或
git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm run build:examples
open examples/index.html
Installation
npm install react react-dom react-portal --save
Usage
import React from 'react';
import ReactDOM from 'react-dom';
import Portal from 'react-portal';
export default class App extends React.Component {
render() {
const button1 = <button>Open portal with pseudo modal</button>;
return (
<Portal closeOnEsc closeOnOutsideClick openByClickOn={button1}>
<PseudoModal>
<h2>Pseudo Modal</h2>
<p>This react component is appended to the document body.</p>
</PseudoModal>
</Portal>
);
}
}
export class PseudoModal extends React.Component {
render() {
return (
<div>
{this.props.children}
<p><button onClick={this.props.closePortal}>Close this</button></p>
</div>
);
}
}
ReactDOM.render(<App />, document.getElementById('react-body'));
Documentation - props
Always required
children : ReactElement
门户需要一个孩子(
) 将被移植。
One of these two required
isOpened : bool
如果为 true,则门户是打开的。 如果为假,门户将关闭。 由您负责关闭(也称为照顾状态)。 如果你想让你的生活更轻松,请不要使用这个道具。 请改用 openByClickOn!
openByClickOn : ReactElement
第二种方式如何打开传送门。 该元素将立即由门户呈现 使用触发门户打开的 onClick
处理程序。 然后如何关闭门户? 门户为其已移植的子级提供回调 this.props.closePortal
。 或者您可以使用内置的门户关闭方法(closeOnEsc,……更多内容见下文)。 请注意,您不必处理打开/关闭状态(就像使用 isOpened
属性时一样)。
Optional
closeOnEsc: bool
如果为真,则可以通过 ESC 键关闭门户。
closeOnOutsideClick: bool
如果为 true,则可以通过单击外部鼠标来关闭门户。
onOpen: func(DOMNode)
当门户打开并呈现时调用此回调(对于为 DOMNode 设置动画很有用)。
beforeClose: func(DOMNode, removeFromDOM)
当触发关闭事件时调用此回调,但它会阻止从 DOM 中正常移除。 因此,您可以先做一些 DOMNode 动画,然后调用 removeFromDOM() 从 DOM 中删除门户。
onClose: func
当门户关闭时和 beforeClose 之后调用此回调。
onUpdate: func
当(重新)呈现门户时调用此回调。
Tips & Tricks
- Does your modal have a fullscreen overlay and the
closeOnOutsideClick
doesn't work? There is a simple solution. - Does your inner inner component
<LevelTwo />
<Portal>
<LevelOne>
<LevelTwo />
</LevelOne>
</Portal>
还需要访问 this.props.closePortal()
? 您不能只在
组件的渲染方法中使用 {this.props.children}
。 您必须改为克隆它:
{React.cloneElement(
this.props.children,
{closePortal: this.props.closePortal}
)}
Open modal programmatically
有时您需要自动打开门户(例如模态)。 没有按钮可以点击。 没问题,因为门户有 isOpen
道具,所以您可以将其设置为 true
或 false
。 然而,这完全取决于您来处理门户关闭(ESC,外部点击,没有 this.props.closePortal
回调...)。
但是,即使没有 isOpen
,也有一个很好的技巧可以实现这一点:
<Portal ref="myPortal">
<Modal title="My modal">
Modal content
</Modal>
</Portal>
this.refs.myPortal.openPortal()
// opens the portal, yay!
Contribution
请创建问题和拉取请求。
git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm start
open http://localhost:3000
不要忘记在每次提交之前运行它:
npm test
Credits
React-portal
Struggling with modals, lightboxes or loading bars in React? React-portal creates a new top-level React tree and injects its child into it. That's necessary for proper styling (especially positioning).
Features
- transports its child into a new React component and appends it to the document.body (creates a new independent React tree)
- can be opened by the prop isOpened
- can be opened after a click on an element that you pass through the prop openByClickOn (and then it takes care of the open/close state)
- doesn't leave any mess in DOM after closing
- provides its child with this.props.closePortal callback
- provides close on ESC and close on outside mouse click out of the box
- supports absolute positioned components (great for tooltips)
- no dependencies
- fully covered by tests
Demo
Try https://miksu.cz/react-portal or
git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm run build:examples
open examples/index.html
Installation
npm install react react-dom react-portal --save
Usage
import React from 'react';
import ReactDOM from 'react-dom';
import Portal from 'react-portal';
export default class App extends React.Component {
render() {
const button1 = <button>Open portal with pseudo modal</button>;
return (
<Portal closeOnEsc closeOnOutsideClick openByClickOn={button1}>
<PseudoModal>
<h2>Pseudo Modal</h2>
<p>This react component is appended to the document body.</p>
</PseudoModal>
</Portal>
);
}
}
export class PseudoModal extends React.Component {
render() {
return (
<div>
{this.props.children}
<p><button onClick={this.props.closePortal}>Close this</button></p>
</div>
);
}
}
ReactDOM.render(<App />, document.getElementById('react-body'));
Documentation - props
Always required
children : ReactElement
The portal expects one child (<Portal><Child ... /></Portal>
) that will be ported.
One of these two required
isOpened : bool
If true, the portal is open. If false, the portal is closed. It's up to you to take care of the closing (aka taking care of the state). Don't use this prop if you want to make your life easier. Use openByClickOn instead!
openByClickOn : ReactElement
The second way how to open the portal. This element will be rendered by the portal immediately with onClick
handler that triggers portal opening. How to close the portal then? The portal provides its ported child with a callback this.props.closePortal
. Or you can use built-in portal closing methods (closeOnEsc, … more below). Notice that you don't have to deal with the open/close state (like when using the isOpened
prop).
Optional
closeOnEsc: bool
If true, the portal can be closed by the key ESC.
closeOnOutsideClick: bool
If true, the portal can be closed by the outside mouse click.
onOpen: func(DOMNode)
This callback is called when the portal is opened and rendered (useful for animating the DOMNode).
beforeClose: func(DOMNode, removeFromDOM)
This callback is called when the closing event is triggered but it prevents normal removal from the DOM. So, you can do some DOMNode animation first and then call removeFromDOM() that removes the portal from DOM.
onClose: func
This callback is called when the portal closes and after beforeClose.
onUpdate: func
This callback is called when the portal is (re)rendered.
Tips & Tricks
- Does your modal have a fullscreen overlay and the
closeOnOutsideClick
doesn't work? There is a simple solution. - Does your inner inner component
<LevelTwo />
<Portal>
<LevelOne>
<LevelTwo />
</LevelOne>
</Portal>
also needs an access to this.props.closePortal()
? You can't just use {this.props.children}
in render method of <LevelOne>
component. You have to clone it instead:
{React.cloneElement(
this.props.children,
{closePortal: this.props.closePortal}
)}
Open modal programmatically
Sometimes you need to open your portal (e.g. modal) automatically. There is no button to click on. No problem, because the portal has the isOpen
prop, so you can just set it to true
or false
. However, then it's completely up to you to take care about the portal closing (ESC, outside click, no this.props.closePortal
callback…).
However, there is a nice trick how to make this happen even without isOpen
:
<Portal ref="myPortal">
<Modal title="My modal">
Modal content
</Modal>
</Portal>
this.refs.myPortal.openPortal()
// opens the portal, yay!
Contribution
Please, create issues and pull requests.
git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm start
open http://localhost:3000
Don't forget to run this before every commit:
npm test
Credits
Inspired by the talk React.js Conf 2015 - Hype!, Ryan Florence