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import { isEqual } from 'lodash' | |
import { inject } from 'mobx-react' | |
import { Component } from 'react' | |
import { jss } from 'react-jss' | |
import { compose, createEagerElement, getDisplayName } from 'recompose' | |
const InstanceSheetInjector = BaseComponent => class extends Component { | |
static displayName = 'applyTheme-instanceSheet'; | |
instanceSheet; | |
constructor(props) { | |
super(props); | |
this.attachSheet(props.themeStyles); | |
} | |
componentWillUpdate(nextProps) { | |
if (!isEqual(this.props.themeStyles, nextProps.themeStyles)) { | |
this.detachSheet(); | |
this.attachSheet(nextProps.themeStyles); | |
} | |
} | |
componentWillUnmount() { | |
this.detachSheet(); | |
} | |
render() { | |
const {themeStyles: _, ...rest} = this.props; | |
const {classes} = this.instanceSheet; | |
return createEagerElement(BaseComponent, { classes, ...rest }); | |
} | |
attachSheet(themeStyles) { | |
this.instanceSheet = jss.createStyleSheet(themeStyles, { | |
link: true, | |
meta: getDisplayName(BaseComponent) + '-instanceSheet' | |
}).attach(); | |
} | |
detachSheet() { | |
jss.removeStyleSheet(this.instanceSheet); | |
this.instanceSheet = undefined; | |
} | |
}; | |
const ClassSheetInjector = BaseComponent => { | |
let | |
classSheet, | |
instanceCount = 0, | |
updateId = 0; | |
return class extends Component { | |
static displayName = 'applyTheme-classSheet'; | |
updateId = 0; | |
constructor(props) { | |
super(props); | |
if (instanceCount === 0) { | |
this.attachSheet(props.themeStyles); | |
} | |
instanceCount++; | |
} | |
componentWillUpdate(nextProps) { | |
if (!isEqual(this.props.themeStyles, nextProps.themeStyles)) { | |
if ( this.updateId === updateId ) { | |
this.detachSheet(); | |
this.attachSheet(nextProps.themeStyles); | |
updateId += 1; | |
} | |
this.updateId = updateId; | |
} | |
} | |
componentWillUnmount() { | |
instanceCount--; | |
if (instanceCount === 0) { | |
this.detachSheet(); | |
} | |
} | |
render() { | |
const {themeStyles: _, ...rest} = this.props; | |
const {classes} = classSheet; | |
return createEagerElement(BaseComponent, { classes, ...rest }); | |
} | |
attachSheet(themeStyles) { | |
classSheet = jss.createStyleSheet(themeStyles, { | |
link: true, | |
meta: getDisplayName(BaseComponent) + '-classSheet' | |
}).attach(); | |
} | |
detachSheet() { | |
jss.removeStyleSheet(classSheet); | |
classSheet = undefined; | |
} | |
} | |
}; | |
export const applyTheme = ( mapThemeToStyles = () => ({}), mapThemeToProps = () => ({}), {sheetPerInstance = false} = {} ) => compose( | |
inject(({themeStore: {theme}}, props, context) => ({ | |
...mapThemeToProps(theme, props, context), | |
themeStyles: mapThemeToStyles(theme, props, context) | |
})), | |
sheetPerInstance ? InstanceSheetInjector : ClassSheetInjector | |
); |
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