DataLinks: Fix onClick functionality (#94815)

* fix: add onclick functionality back to DataLinks in VizPanelFooter

---------

Co-authored-by: Adela Almasan <adela.almasan@grafana.com>
Co-authored-by: Matias Chomicki <matyax@gmail.com>

packages/grafana-ui/src/components/DataLinks/DataLinkButton.tsx

@@ -28,7 +28,7 @@ export function DataLinkButton({ link, buttonProps }: DataLinkButtonProps) {
       }
     >
       <Button
-        icon={link.target === '_blank' ? 'external-link-alt' : undefined}
+        icon={link.target === '_blank' ? 'external-link-alt' : 'link'}
         variant="primary"
         size="sm"
         {...buttonProps}

packages/grafana-ui/src/components/Link/TextLink.test.tsx

@@ -1,4 +1,5 @@
 import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
 import { MemoryRouter } from 'react-router-dom-v5-compat';
 
 import { GrafanaConfig, locationUtil } from '@grafana/data';
@@ -48,4 +49,17 @@ describe('TextLink', () => {
     );
     expect(screen.getByRole('link')).toHaveAttribute('href', '/after-sub-url');
   });
+  it('should fire onclick', async () => {
+    const onClick = jest.fn();
+
+    render(
+      <MemoryRouter>
+        <TextLink onClick={onClick} href={link}>
+          Link to Grafana
+        </TextLink>
+      </MemoryRouter>
+    );
+    await userEvent.click(screen.getByRole('link'));
+    expect(onClick).toHaveBeenCalled();
+  });
 });

packages/grafana-ui/src/components/VizTooltip/VizTooltipFooter.test.tsx

@@ -0,0 +1,35 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { MemoryRouter } from 'react-router-dom-v5-compat';
+
+import { Field, FieldType, LinkModel } from '@grafana/data';
+
+import { VizTooltipFooter } from './VizTooltipFooter';
+
+describe('VizTooltipFooter', () => {
+  it('should fire onclick', async () => {
+    const onClick = jest.fn();
+    const field: Field = {
+      name: '',
+      type: FieldType.string,
+      values: [],
+      config: {},
+    };
+
+    const link: LinkModel<Field> = {
+      href: '#',
+      onClick,
+      title: '',
+      origin: field,
+      target: undefined,
+    };
+
+    render(
+      <MemoryRouter>
+        <VizTooltipFooter dataLinks={[link]} />
+      </MemoryRouter>
+    );
+    await userEvent.click(screen.getByRole('link'));
+    expect(onClick).toHaveBeenCalled();
+  });
+});

packages/grafana-ui/src/components/VizTooltip/VizTooltipFooter.tsx

@@ -2,7 +2,7 @@ import { css } from '@emotion/css';
 
 import { ActionModel, Field, GrafanaTheme2, LinkModel } from '@grafana/data';
 
-import { Button, Stack, TextLink } from '..';
+import { Button, DataLinkButton, Stack } from '..';
 import { useStyles2 } from '../../themes';
 import { ActionButton } from '../Actions/ActionButton';
 
@@ -14,20 +14,11 @@ interface VizTooltipFooterProps {
 
 export const ADD_ANNOTATION_ID = 'add-annotation-button';
 
-const renderDataLinks = (dataLinks: LinkModel[]) => {
+const renderDataLinks = (dataLinks: LinkModel[], styles: ReturnType<typeof getStyles>) => {
   return (
-    <Stack direction="column" justifyContent="flex-start">
+    <Stack direction="column" justifyContent="flex-start" gap={0.5}>
       {dataLinks.map((link, i) => (
-        <TextLink
-          key={i}
-          href={link.href}
-          external={link.target === '_blank'}
-          weight={'medium'}
-          inline={false}
-          variant={'bodySmall'}
-        >
-          {link.title}
-        </TextLink>
+        <DataLinkButton link={link} key={i} buttonProps={{ className: styles.dataLinkButton, fill: 'text' }} />
       ))}
     </Stack>
   );
@@ -48,7 +39,7 @@ export const VizTooltipFooter = ({ dataLinks, actions, annotate }: VizTooltipFoo
 
   return (
     <div className={styles.wrapper}>
-      {dataLinks.length > 0 && <div className={styles.dataLinks}>{renderDataLinks(dataLinks)}</div>}
+      {dataLinks.length > 0 && <div className={styles.dataLinks}>{renderDataLinks(dataLinks, styles)}</div>}
       {actions && actions.length > 0 && <div className={styles.dataLinks}>{renderActions(actions)}</div>}
       {annotate != null && (
         <div className={styles.addAnnotations}>
@@ -76,4 +67,11 @@ const getStyles = (theme: GrafanaTheme2) => ({
     borderTop: `1px solid ${theme.colors.border.medium}`,
     padding: theme.spacing(1),
   }),
+  dataLinkButton: css({
+    cursor: 'pointer',
+    '&:hover': {
+      textDecoration: 'underline',
+      background: 'none',
+    },
+  }),
 });