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import React, { useState, useRef } from 'react';
import Button from '@material-ui/core/Button';
import Paper from '@material-ui/core/Paper';
import Tab from '@material-ui/core/Tab';
import Tabs from '@material-ui/core/Tabs';
import TextField from '@material-ui/core/TextField';
import { makeStyles, Theme } from '@material-ui/core/styles';
import Content from 'src/components/Content';
import { useAddCommentMutation } from './CommentForm.generated';
import { TimelineDocument } from './TimelineQuery.generated';
type StyleProps = { loading: boolean };
const useStyles = makeStyles<Theme, StyleProps>((theme) => ({
container: {
margin: theme.spacing(2, 0),
padding: theme.spacing(0, 2, 2, 2),
},
textarea: {},
tabContent: {
margin: theme.spacing(2, 0),
},
preview: {
borderBottom: `solid 3px ${theme.palette.grey['200']}`,
minHeight: '5rem',
},
actions: {
display: 'flex',
justifyContent: 'flex-end',
},
}));
type TabPanelProps = {
children: React.ReactNode;
value: number;
index: number;
} & React.HTMLProps<HTMLDivElement>;
function TabPanel({ children, value, index, ...props }: TabPanelProps) {
return (
<div
role="tabpanel"
hidden={value !== index}
id={`editor-tabpanel-${index}`}
aria-labelledby={`editor-tab-${index}`}
{...props}
>
{value === index && children}
</div>
);
}
const a11yProps = (index: number) => ({
id: `editor-tab-${index}`,
'aria-controls': `editor-tabpanel-${index}`,
});
type Props = {
bugId: string;
};
function CommentForm({ bugId }: Props) {
const [addComment, { loading }] = useAddCommentMutation();
const [input, setInput] = useState<string>('');
const [tab, setTab] = useState(0);
const classes = useStyles({ loading });
const form = useRef<HTMLFormElement>(null);
const submit = () => {
addComment({
variables: {
input: {
prefix: bugId,
message: input,
},
},
refetchQueries: [
// TODO: update the cache instead of refetching
{
query: TimelineDocument,
variables: {
id: bugId,
first: 100,
},
},
],
awaitRefetchQueries: true,
}).then(() => setInput(''));
};
const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
e.preventDefault();
submit();
};
const handleKeyDown = (e: React.KeyboardEvent<HTMLElement>) => {
// Submit on cmd/ctrl+enter
if ((e.metaKey || e.altKey) && e.keyCode === 13) {
submit();
}
};
return (
<Paper className={classes.container}>
<form onSubmit={handleSubmit} ref={form}>
<Tabs value={tab} onChange={(_, t) => setTab(t)}>
<Tab label="Write" {...a11yProps(0)} />
<Tab label="Preview" {...a11yProps(1)} />
</Tabs>
<div className={classes.tabContent}>
<TabPanel value={tab} index={0}>
<TextField
onKeyDown={handleKeyDown}
fullWidth
label="Comment"
placeholder="Leave a comment"
className={classes.textarea}
multiline
value={input}
variant="filled"
rows="4" // TODO: rowsMin support
onChange={(e: any) => setInput(e.target.value)}
disabled={loading}
/>
</TabPanel>
<TabPanel value={tab} index={1} className={classes.preview}>
<Content markdown={input} />
</TabPanel>
</div>
<div className={classes.actions}>
<Button
variant="contained"
color="primary"
type="submit"
disabled={loading}
>
Comment
</Button>
</div>
</form>
</Paper>
);
}
export default CommentForm;
|
