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This hoc wrap is used to add a float lable to form input
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import * as React from 'react'; | |
import { Omit, removeKeys } from '../utilities'; | |
export interface Props { | |
label: string | React.Component; | |
value?: any; | |
error?: string; | |
onChange: (newValue?: any) => void; | |
isRequired?: boolean; | |
focused?: boolean; | |
placeHolder?: string; | |
} | |
export interface States { | |
isFocused: boolean; | |
} | |
export default function FloatMaker<P extends Props>(Component: React.ComponentType<P>) { | |
return class FloatItem extends React.Component<P, States> { | |
state = { isFocused: false }; | |
setFocus = () => { | |
this.setState({ isFocused: true }); | |
} | |
setBlur = () => { | |
this.setState({ isFocused: false }); | |
} | |
checkFloatClass = (value: any) => { | |
const isFocused = this.state.isFocused; | |
if (Array.isArray(value) && value.length === 0 && !isFocused) { | |
return ''; | |
} else if (isFocused || !!value) { | |
return ' js-float'; | |
} else { | |
return ''; | |
} | |
} | |
render() { | |
const { label, value, error, isRequired, placeHolder } = this.props; | |
const { isFocused } = this.state; | |
const ComponentProps = { | |
onFocus: this.setFocus, | |
onBlur: this.setBlur, | |
value: value, | |
...removeKeys(this.props, ['error', 'label']) | |
}; | |
return ( | |
<div className={'y-floating-input' + this.checkFloatClass(value) + (error ? ' js-error' : '')}> | |
{label && <label>{label} {isRequired && <span className="required-sign" />} </label>} | |
<Component {...ComponentProps as any} placeHolder={isFocused ? placeHolder : ''} /> | |
</div> | |
); | |
} | |
}; | |
} |
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