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Allow paste + enter on Dropdown #1937

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Allow paste + enter on Dropdown #1937

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315753c
enable paste + enter for dropdown
Nov 24, 2019
b7ae79c
deep equal
Nov 24, 2019
7c5e3f1
useRef instead of useState for stateValue
Nov 24, 2019
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28 changes: 17 additions & 11 deletions packages/react-components/src/Dropdown.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@

import { BareProps } from './types';

import React, { useEffect, useState } from 'react';
import React, { useEffect, useMemo, useState } from 'react';
import styled from 'styled-components';
import SUIButton from 'semantic-ui-react/dist/commonjs/elements/Button/Button';
import SUIDropdown, { DropdownProps } from 'semantic-ui-react/dist/commonjs/modules/Dropdown/Dropdown';
Expand Down Expand Up @@ -40,31 +40,37 @@ interface Props<Option> extends BareProps {
}

function Dropdown<Option> ({ allowAdd = false, className, defaultValue, dropdownClassName, help, isButton, isDisabled, isError, isMultiple, label, labelExtra, onAdd, onBlur, onChange, onClose, onSearch, options, placeholder, renderLabel, searchInput, style, transform, withEllipsis, withLabel, value }: Props<Option>): React.ReactElement<Props<Option>> {
const valueProp = useMemo(
() => isUndefined(value) ? defaultValue : value,
[defaultValue, value]
);
const [stateValue, setStateValue] = useState<any>();

const _onAdd = (_: React.SyntheticEvent<HTMLElement>, { value }: DropdownProps): void =>
onAdd && onAdd(value);

const _onChange = (_: React.SyntheticEvent<HTMLElement> | null, { value }: DropdownProps): void => {
const handleOnChange = (value: any): void => {
setStateValue(value);

onChange && onChange(
transform
? transform(value)
: value
);
};

useEffect((): void => {
const newValue = isUndefined(value)
? defaultValue
: value;
const _onChange = (_: React.SyntheticEvent<HTMLElement> | null, { value }: DropdownProps): void => {
if (JSON.stringify({ v: valueProp }) === JSON.stringify({ v: value })) {
return;
}
handleOnChange(value);
};

// only update parent if we have had something changed
if (JSON.stringify({ v: newValue }) !== JSON.stringify({ v: stateValue })) {
_onChange(null, { value: newValue });
useEffect(() => {
if (JSON.stringify({ v: valueProp }) === JSON.stringify({ v: stateValue })) {
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return;
}
}, [defaultValue, stateValue, value]);
handleOnChange(valueProp);
}, [valueProp]);

const dropdown = (
<SUIDropdown
Expand Down