4 files changed, 105 insertions, 8 deletions

diff --git a/webui/src/components/BackToListButton.tsx b/webui/src/components/BackToListButton.tsx
new file mode 100644
index 00000000..7ca53ad0
--- /dev/null
+++ b/webui/src/components/BackToListButton.tsx
@@ -0,0 +1,36 @@
+import React from 'react';
+
+import Button from '@material-ui/core/Button';
+import { makeStyles } from '@material-ui/core/styles';
+import ArrowBackIcon from '@material-ui/icons/ArrowBack';
+
+const useStyles = makeStyles((theme) => ({
+  backButton: {
+    position: 'sticky',
+    top: '80px',
+    backgroundColor: theme.palette.primary.dark,
+    color: theme.palette.primary.contrastText,
+    '&:hover': {
+      backgroundColor: theme.palette.primary.main,
+      color: theme.palette.primary.contrastText,
+    },
+  },
+}));
+
+function BackToListButton() {
+  const classes = useStyles();
+
+  return (
+    <Button
+      variant="contained"
+      className={classes.backButton}
+      aria-label="back to issue list"
+      href="/"
+    >
+      <ArrowBackIcon />
+      Back to List
+    </Button>
+  );
+}
+
+export default BackToListButton;
diff --git a/webui/src/components/BugTitleForm/BugTitleForm.tsx b/webui/src/components/BugTitleForm/BugTitleForm.tsx
index cc9f5267..a7d5a820 100644
--- a/webui/src/components/BugTitleForm/BugTitleForm.tsx
+++ b/webui/src/components/BugTitleForm/BugTitleForm.tsx
@@ -70,7 +70,7 @@ function BugTitleForm({ bug }: Props) {
 
   function isFormValid() {
     if (issueTitleInput) {
-      return issueTitleInput.value.length > 0 ? true : false;
+      return issueTitleInput.value.length > 0;
     } else {
       return false;
     }
diff --git a/webui/src/components/Content/PreTag.tsx b/webui/src/components/Content/PreTag.tsx
index 5256ab12..8e352153 100644
--- a/webui/src/components/Content/PreTag.tsx
+++ b/webui/src/components/Content/PreTag.tsx
@@ -11,7 +11,7 @@ const useStyles = makeStyles({
 
 const PreTag = (props: React.HTMLProps<HTMLPreElement>) => {
   const classes = useStyles();
-  return <pre className={classes.tag} {...props}></pre>;
+  return <pre className={classes.tag} {...props} />;
 };
 
 export default PreTag;
diff --git a/webui/src/components/Header/Header.tsx b/webui/src/components/Header/Header.tsx
index 3bdb252f..3064f6e4 100644
--- a/webui/src/components/Header/Header.tsx
+++ b/webui/src/components/Header/Header.tsx
@@ -1,12 +1,15 @@
 import React from 'react';
-import { Link } from 'react-router-dom';
+import { Link, useLocation } from 'react-router-dom';
 
 import AppBar from '@material-ui/core/AppBar';
+import Tab, { TabProps } from '@material-ui/core/Tab';
+import Tabs from '@material-ui/core/Tabs';
 import Toolbar from '@material-ui/core/Toolbar';
+import Tooltip from '@material-ui/core/Tooltip/Tooltip';
 import { makeStyles } from '@material-ui/core/styles';
 
-import { LightSwitch } from '../../components/Themer';
 import CurrentIdentity from '../CurrentIdentity/CurrentIdentity';
+import { LightSwitch } from '../Themer';
 
 const useStyles = makeStyles((theme) => ({
   offset: {
@@ -15,9 +18,13 @@ const useStyles = makeStyles((theme) => ({
   filler: {
     flexGrow: 1,
   },
+  appBar: {
+    backgroundColor: theme.palette.primary.dark,
+    color: theme.palette.primary.contrastText,
+  },
   appTitle: {
     ...theme.typography.h6,
-    color: 'white',
+    color: theme.palette.primary.contrastText,
     textDecoration: 'none',
     display: 'flex',
     alignItems: 'center',
@@ -31,18 +38,53 @@ const useStyles = makeStyles((theme) => ({
   },
 }));
 
+function a11yProps(index: any) {
+  return {
+    id: `nav-tab-${index}`,
+    'aria-controls': `nav-tabpanel-${index}`,
+  };
+}
+
+const DisabledTabWithTooltip = (props: TabProps) => {
+  /*The span elements around disabled tabs are needed, as the tooltip
+   * won't be triggered by disabled elements.
+   * See: https://material-ui.com/components/tooltips/#disabled-elements
+   * This must be done in a wrapper component, otherwise the TabS component
+   * cannot pass it styles down to the Tab component. Resulting in (console)
+   * warnings. This wrapper acceps the passed down TabProps and pass it around
+   * the span element to the Tab component.
+   */
+  const msg = `This feature doesn't exist yet. Come help us build it.`;
+  return (
+    <Tooltip title={msg}>
+      <span>
+        <Tab disabled {...props} />
+      </span>
+    </Tooltip>
+  );
+};
+
 function Header() {
   const classes = useStyles();
+  const location = useLocation();
+  const [selectedTab, setTab] = React.useState(location.pathname);
+
+  const handleTabClick = (
+    event: React.ChangeEvent<{}>,
+    newTabValue: string
+  ) => {
+    setTab(newTabValue);
+  };
 
   return (
     <>
-      <AppBar position="fixed" color="primary">
+      <AppBar position="fixed" className={classes.appBar}>
         <Toolbar>
           <Link to="/" className={classes.appTitle}>
-            <img src="/logo.svg" className={classes.logo} alt="git-bug" />
+            <img src="/logo.svg" className={classes.logo} alt="git-bug logo" />
             git-bug
           </Link>
-          <div className={classes.filler}></div>
+          <div className={classes.filler} />
           <div className={classes.lightSwitch}>
             <LightSwitch />
           </div>
@@ -50,6 +92,25 @@ function Header() {
         </Toolbar>
       </AppBar>
       <div className={classes.offset} />
+      <Tabs
+        centered
+        value={selectedTab}
+        onChange={handleTabClick}
+        aria-label="nav tabs"
+      >
+        <DisabledTabWithTooltip label="Code" value="/code" {...a11yProps(1)} />
+        <Tab label="Bugs" value="/" component={Link} to="/" {...a11yProps(2)} />
+        <DisabledTabWithTooltip
+          label="Pull Requests"
+          value="/pulls"
+          {...a11yProps(3)}
+        />
+        <DisabledTabWithTooltip
+          label="Settings"
+          value="/settings"
+          {...a11yProps(4)}
+        />
+      </Tabs>
     </>
   );
 }