DataLinks: Bring back single click links for Stat, Gauge and BarGauge panel (#31692)

* Bring back clickable Stat, Gauge and BarGauge panels

* Demo dashboard

* Add DataLinksContextMenu tests

* Only use new UI for data links, revert panel links logic

packages/grafana-e2e-selectors/src/selectors/components.ts

@@ -181,4 +181,7 @@ export const Components = {
   CallToActionCard: {
     button: (name: string) => `Call to action button ${name}`,
   },
+  DataLinksContextMenu: {
+    singleLink: 'Data link',
+  },
 };

packages/grafana-ui/src/components/DataLinks/DataLinksContextMenu.test.tsx

@@ -0,0 +1,77 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import { DataLinksContextMenu } from './DataLinksContextMenu';
+import { selectors } from '@grafana/e2e-selectors';
+
+const fakeAriaLabel = 'fake aria label';
+describe('DataLinksContextMenu', () => {
+  it('renders context menu when there are more than one data links', () => {
+    render(
+      <DataLinksContextMenu
+        links={() => [
+          {
+            href: '/link1',
+            title: 'Link1',
+            target: '_blank',
+            origin: {},
+          },
+          {
+            href: '/link2',
+            title: 'Link2',
+            target: '_blank',
+            origin: {},
+          },
+        ]}
+        config={{
+          links: [
+            {
+              title: 'Link1',
+              url: '/link1',
+            },
+            {
+              title: 'Link2',
+              url: '/link2',
+            },
+          ],
+        }}
+      >
+        {() => {
+          return <div aria-label="fake aria label" />;
+        }}
+      </DataLinksContextMenu>
+    );
+
+    expect(screen.getByLabelText(fakeAriaLabel)).toBeInTheDocument();
+    expect(screen.queryAllByLabelText(selectors.components.DataLinksContextMenu.singleLink)).toHaveLength(0);
+  });
+
+  it('renders link when there is a single data link', () => {
+    render(
+      <DataLinksContextMenu
+        links={() => [
+          {
+            href: '/link1',
+            title: 'Link1',
+            target: '_blank',
+            origin: {},
+          },
+        ]}
+        config={{
+          links: [
+            {
+              title: 'Link1',
+              url: '/link1',
+            },
+          ],
+        }}
+      >
+        {() => {
+          return <div aria-label="fake aria label" />;
+        }}
+      </DataLinksContextMenu>
+    );
+
+    expect(screen.getByLabelText(fakeAriaLabel)).toBeInTheDocument();
+    expect(screen.getByLabelText(selectors.components.DataLinksContextMenu.singleLink)).toBeInTheDocument();
+  });
+});

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

@@ -1,12 +1,14 @@
 import React from 'react';
+import { FieldConfig, LinkModel } from '@grafana/data';
+import { selectors } from '@grafana/e2e-selectors';
+import { css } from 'emotion';
 import { WithContextMenu } from '../ContextMenu/WithContextMenu';
-import { LinkModel } from '@grafana/data';
 import { linkModelToContextMenuItems } from '../../utils/dataLinks';
-import { css } from 'emotion';
 
 interface DataLinksContextMenuProps {
   children: (props: DataLinksContextMenuApi) => JSX.Element;
   links: () => LinkModel[];
+  config: FieldConfig;
 }
 
 export interface DataLinksContextMenuApi {
@@ -14,7 +16,8 @@ export interface DataLinksContextMenuApi {
   targetClassName?: string;
 }
 
-export const DataLinksContextMenu: React.FC<DataLinksContextMenuProps> = ({ children, links }) => {
+export const DataLinksContextMenu: React.FC<DataLinksContextMenuProps> = ({ children, links, config }) => {
+  const linksCounter = config.links!.length;
   const getDataLinksContextMenuItems = () => {
     return [{ items: linkModelToContextMenuItems(links), label: 'Data links' }];
   };
@@ -24,6 +27,7 @@ export const DataLinksContextMenu: React.FC<DataLinksContextMenuProps> = ({ chil
     cursor: context-menu;
   `;
 
+  if (linksCounter > 1) {
     return (
       <WithContextMenu getContextMenuItems={getDataLinksContextMenuItems}>
         {({ openMenu }) => {
@@ -31,4 +35,19 @@ export const DataLinksContextMenu: React.FC<DataLinksContextMenuProps> = ({ chil
         }}
       </WithContextMenu>
     );
+  } else {
+    const linkModel = links()[0];
+    return (
+      <a
+        href={linkModel.href}
+        onClick={linkModel.onClick}
+        target={linkModel.target}
+        title={linkModel.title}
+        style={{ display: 'flex' }}
+        aria-label={selectors.components.DataLinksContextMenu.singleLink}
+      >
+        {children({})}
+      </a>
+    );
+  }
 };

public/app/plugins/panel/bargauge/BarGaugePanel.tsx

@@ -57,14 +57,13 @@ export class BarGaugePanel extends PureComponent<PanelProps<BarGaugeOptions>> {
 
     if (hasLinks && getLinks) {
       return (
-        <DataLinksContextMenu links={getLinks}>
+        <DataLinksContextMenu links={getLinks} config={value.field}>
           {(api) => {
             return this.renderComponent(valueProps, api);
           }}
         </DataLinksContextMenu>
       );
     }
-
     return this.renderComponent(valueProps, {});
   };
 

public/app/plugins/panel/gauge/GaugePanel.tsx

@@ -39,7 +39,7 @@ export class GaugePanel extends PureComponent<PanelProps<GaugeOptions>> {
 
     if (hasLinks && getLinks) {
       return (
-        <DataLinksContextMenu links={getLinks}>
+        <DataLinksContextMenu links={getLinks} config={value.field}>
           {(api) => {
             return this.renderComponent(valueProps, api);
           }}

public/app/plugins/panel/stat/StatPanel.tsx

@@ -69,7 +69,7 @@ export class StatPanel extends PureComponent<PanelProps<StatPanelOptions>> {
 
     if (hasLinks && getLinks) {
       return (
-        <DataLinksContextMenu links={getLinks}>
+        <DataLinksContextMenu links={getLinks} config={value.field}>
           {(api) => {
             return this.renderComponent(valueProps, api);
           }}