1 files changed, 96 insertions, 0 deletions
diff --git a/webui/src/pages/bug/CommentInput.tsx b/webui/src/pages/bug/CommentInput.tsx
new file mode 100644
index 00000000..540a53f7
--- /dev/null
+++ b/webui/src/pages/bug/CommentInput.tsx
@@ -0,0 +1,96 @@
+import React, { useState, useEffect } from 'react';
+
+import Tab from '@material-ui/core/Tab';
+import Tabs from '@material-ui/core/Tabs';
+import TextField from '@material-ui/core/TextField';
+import { makeStyles } from '@material-ui/core/styles';
+
+import Content from 'src/components/Content';
+
+const useStyles = makeStyles((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 = {
+  loading: boolean;
+  onChange: (comment: string) => void;
+};
+
+function CommentInput({ loading, onChange }: Props) {
+  const [input, setInput] = useState<string>('');
+  const [tab, setTab] = useState(0);
+  const classes = useStyles();
+
+  useEffect(() => {
+    onChange(input);
+  }, [input, onChange]);
+
+  return (
+    <div>
+      <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
+            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>
+  );
+}
+
+export default CommentInput;