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Use Redux Connect, with context in your map* methods!
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import React from 'react'; | |
import { connect as reduxConnect } from 'react-redux'; | |
function wrapWithContext(mapStateToProps, mapDispatchToProps, contextTypes, component) { | |
return class ConnectedComponent extends React.Component { | |
constructor(props, context) { | |
super(props, context); | |
/* | |
* This is the magic right here! | |
*/ | |
this.mapStateToProps = mapStateToProps | |
? (state, ownProps) => mapStateToProps(state, ownProps, context) | |
: null; | |
this.mapDispatchToProps = mapDispatchToProps | |
? (dispatch, ownProps) => mapDispatchToProps(dispatch, ownProps, context) | |
: null; | |
this.component = reduxConnect(this.mapStateToProps, this.mapDispatchToProps)(component); | |
// should we do this for other methods too? | |
this.shouldComponentUpdate = this.component.shouldComponentUpdate; | |
} | |
static contextTypes = contextTypes; | |
render() { | |
const Component = this.component; | |
return <Component {...this.props} />; | |
} | |
}; | |
} | |
/** | |
* Enhanced version of redux' connect that provides context to the map methods. | |
* | |
* @param {Function} mapStateToProps - The function to mapStateToProps | |
* @param {Function} mapDispatchToProps - The function to mapDispatchToProps | |
* @param {Object} contextTypes - Must adhere to the contextTypes-style object | |
* @returns {Function} - returns a function that wraps a provided component with context | |
* | |
* This impl does not include `mergeProps` or `options` though you can easily add it by just passing it through. | |
*/ | |
export default function connect(mapStateToProps, mapDispatchToProps, contextTypes) { | |
return component => { | |
return wrapWithContext( | |
mapStateToProps, | |
mapDispatchToProps, | |
contextTypes, | |
component | |
); | |
}; | |
} |
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import { connect } from './connect-context'; // special connect-context (not an npm package, code below!) | |
import { PropTypes } from 'react'; | |
const contextTypes = { | |
valueFromContext: PropTypes.object.isRequired, | |
}; | |
function mapStateToProps(state, ownProps, context) { /* .. */ } | |
function mapDispatchToProps(dispatch, ownProps, context) { /* .. */ } | |
function Component(props, context) { /* .. */ } | |
export default connect(mapStateToProps, mapDispatchToProps, contextTypes)(Component); |
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