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import React, { useState, useEffect, useRef } from 'react';
import PropTypes from 'prop-types';
import { useFormState } from 'react-use-form-state';
import { MessageType } from './Types';
import Icon from './Icon';
import Button from './Button';
import UploadButton from './UploadButton';
export default function MessageInput({ text, data, rows, children, onSend }) {
let textareaRef = useRef();
let fileinput = useRef();
let updateFocus = () => {
const isDesktop = window.matchMedia('(min-width: 62.5rem)');
if (isDesktop.matches) {
textareaRef.current.focus();
}
};
useEffect(() => {
textareaRef.current.value = text;
updateFocus();
}, []);
let handleCtrlEnter = (event) => {
if (event.ctrlKey && (event.charCode == 10 || event.charCode == 13)) {
onSubmit({});
}
};
let textChanged = (event) => {
const el = textareaRef.current;
const offset = el.offsetHeight - el.clientHeight;
const height = el.scrollHeight + offset;
el.style.height = `${height + offset}px`;
};
const [attach, setAttach] = useState('');
const [formState, { textarea }] = useFormState();
let uploadValueChanged = (attach) => {
setAttach(attach);
};
let onSubmit = (event) => {
if (event.preventDefault) {
event.preventDefault();
}
const input = fileinput.current;
onSend({
mid: data.mid,
rid: data.rid || 0,
body: formState.values.body,
attach: attach ? input.files[0] : '',
to: data.to || {}
});
setAttach('');
formState.values.body = '';
textareaRef.current.value = '';
textareaRef.current.style.height = '';
updateFocus();
};
return (
<form className="msg-comment-target" style={{ padding: '12px' }} onSubmit={onSubmit}>
<div style={commentStyle}>
<textarea onChange={textChanged} onKeyPress={handleCtrlEnter}
ref={textareaRef} style={textInputStyle} value={formState.values.body}
rows={rows || '1'} placeholder={children} {...textarea('body')} />
<div style={inputBarStyle}>
<UploadButton inputRef={fileinput} value={attach} onChange={uploadValueChanged} />
<Button onClick={onSubmit}><Icon name="ei-envelope" size="s" />Send</Button>
</div>
</div>
</form>
);
}
const commentStyle = {
display: 'flex',
flexDirection: 'column',
borderTop: '1px #eee solid',
width: '100%',
marginTop: '10px'
};
const inputBarStyle = {
display: 'flex',
alignItems: 'center',
justifyContent: 'space-between',
padding: '3px'
};
const textInputStyle = {
overflow: 'hidden',
resize: 'none',
display: 'block',
boxSizing: 'border-box',
border: 0,
outline: 'none',
padding: '4px'
};
MessageInput.propTypes = {
children: PropTypes.node,
data: MessageType.isRequired,
onSend: PropTypes.func.isRequired,
rows: PropTypes.string,
text: PropTypes.string
};
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