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import React, { Component } from "react"; |
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import _ from "lodash"; |
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// Lodash's debounce doesn't work properly if imported |
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// by itself... something to do with how it handles 'this' |
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import TextArea, { TextAreaProps } from "./TextArea"; |
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export interface UpdatingTextAreaProps extends TextAreaProps { |
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updateDelay?: number | null; |
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handleSave: () => void; |
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} |
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export interface UpdatingTextAreaState { |
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updateDelay: number | null | undefined; |
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} |
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class UpdatingTextArea extends Component< |
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UpdatingTextAreaProps, |
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UpdatingTextAreaState |
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> { |
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public constructor(props) { |
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super(props); |
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const { updateDelay } = this.props; |
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if (updateDelay) { |
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const bounceDelay: number = updateDelay; |
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this.state = { |
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updateDelay: bounceDelay, |
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}; |
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// Lodash's debounce doesn't work properly if imported |
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// by itself... something to do with how it handles 'this' |
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this.triggerSave = _.debounce(this.triggerSave, bounceDelay); |
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} |
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} |
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public triggerSave(): void { |
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const { value, minLength, handleSave } = this.props; |
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if (value !== undefined) { |
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if ( |
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value.toString().length > (minLength || 3) || |
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value.toString().length === 0 |
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) { |
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handleSave(); |
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} |
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} |
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} |
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public render(): React.ReactElement { |
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const { |
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id, |
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name, |
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label, |
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required, |
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placeholder, |
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value, |
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onChange, |
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errorText, |
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handleSave, |
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minLength, |
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maxLength, |
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} = this.props; |
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return ( |
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<TextArea |
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id={id} |
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name={name} |
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label={label} |
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required={required} |
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placeholder={placeholder} |
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value={value} |
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minLength={minLength} |
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maxLength={maxLength} |
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onChange={(event: React.ChangeEvent<HTMLTextAreaElement>): void => { |
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onChange(event); |
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if (this.state) { |
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const { updateDelay } = this.state; |
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if (updateDelay) { |
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this.triggerSave(); |
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} |
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} |
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}} |
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onBlur={handleSave} |
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errorText={errorText} |
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/> |
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); |
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} |
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} |
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export default UpdatingTextArea; |
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