DataLinks: Allow providing a dynamic data link builder (#60452)

.betterer.results

@@ -247,13 +247,7 @@ exports[`better eslint`] = {
       [0, 0, 0, "Unexpected any. Specify a different type.", "24"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "25"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "26"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "27"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "28"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "29"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "30"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "31"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "32"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "33"]
+      [0, 0, 0, "Unexpected any. Specify a different type.", "27"]
     ],
     "packages/grafana-data/src/field/fieldOverrides.ts:5381": [
       [0, 0, 0, "Unexpected any. Specify a different type.", "0"],

packages/grafana-data/src/field/fieldOverrides.test.ts

@@ -9,6 +9,7 @@ import {
   FieldConfigPropertyItem,
   FieldConfigSource,
   FieldType,
+  GrafanaConfig,
   InterpolateFunction,
   ScopedVars,
   ThresholdsMode,
@@ -566,9 +567,9 @@ describe('setDynamicConfigValue', () => {
 describe('getLinksSupplier', () => {
   it('will replace variables in url and title of the data link', () => {
     locationUtil.initialize({
-      config: {} as any,
-      getVariablesUrlParams: (() => {}) as any,
-      getTimeRangeForUrl: (() => {}) as any,
+      config: {} as GrafanaConfig,
+      getVariablesUrlParams: () => ({}),
+      getTimeRangeForUrl: () => ({ from: 'now-7d', to: 'now' }),
     });
 
     const f0 = new MutableDataFrame({
@@ -601,9 +602,9 @@ describe('getLinksSupplier', () => {
 
   it('handles internal links', () => {
     locationUtil.initialize({
-      config: { appSubUrl: '' } as any,
-      getVariablesUrlParams: (() => {}) as any,
-      getTimeRangeForUrl: (() => {}) as any,
+      config: { appSubUrl: '' } as GrafanaConfig,
+      getVariablesUrlParams: () => ({}),
+      getTimeRangeForUrl: () => ({ from: 'now-7d', to: 'now' }),
     });
 
     const datasourceUid = '1234';
@@ -651,6 +652,93 @@ describe('getLinksSupplier', () => {
       })
     );
   });
+
+  describe('dynamic links', () => {
+    beforeEach(() => {
+      locationUtil.initialize({
+        config: {} as GrafanaConfig,
+        getVariablesUrlParams: () => ({}),
+        getTimeRangeForUrl: () => ({ from: 'now-7d', to: 'now' }),
+      });
+    });
+    it('handles link click handlers', () => {
+      const onClickSpy = jest.fn();
+      const replaceSpy = jest.fn();
+      const f0 = new MutableDataFrame({
+        name: 'A',
+        fields: [
+          {
+            name: 'message',
+            type: FieldType.string,
+            values: [10, 20],
+            config: {
+              links: [
+                {
+                  url: 'should not be ignored',
+                  onClick: onClickSpy,
+                  title: 'title to be interpolated',
+                },
+                {
+                  url: 'should not be ignored',
+                  title: 'title to be interpolated',
+                },
+              ],
+            },
+          },
+        ],
+      });
+
+      const supplier = getLinksSupplier(f0, f0.fields[0], {}, replaceSpy);
+      const links = supplier({});
+
+      expect(links.length).toBe(2);
+      expect(links[0].href).toEqual('should not be ignored');
+      expect(links[0].onClick).toBeDefined();
+
+      links[0].onClick!({});
+
+      expect(onClickSpy).toBeCalledTimes(1);
+    });
+
+    it('handles links built dynamically', () => {
+      const replaceSpy = jest.fn().mockReturnValue('url interpolated 10');
+      const onBuildUrlSpy = jest.fn();
+
+      const f0 = new MutableDataFrame({
+        name: 'A',
+        fields: [
+          {
+            name: 'message',
+            type: FieldType.string,
+            values: [10, 20],
+            config: {
+              links: [
+                {
+                  url: 'should be ignored',
+                  onBuildUrl: () => {
+                    onBuildUrlSpy();
+                    return 'url to be interpolated';
+                  },
+                  title: 'title to be interpolated',
+                },
+                {
+                  url: 'should not be ignored',
+                  title: 'title to be interpolated',
+                },
+              ],
+            },
+          },
+        ],
+      });
+
+      const supplier = getLinksSupplier(f0, f0.fields[0], {}, replaceSpy);
+      const links = supplier({});
+
+      expect(onBuildUrlSpy).toBeCalledTimes(1);
+      expect(links.length).toBe(2);
+      expect(links[0].href).toEqual('url interpolated 10');
+    });
+  });
 });
 
 describe('applyRawFieldOverrides', () => {

packages/grafana-data/src/field/fieldOverrides.ts

@@ -450,9 +450,18 @@ export const getLinksSupplier =
         });
       }
 
-      let href = locationUtil.assureBaseUrl(link.url.replace(/\n/g, ''));
-      href = replaceVariables(href, variables);
-      href = locationUtil.processUrl(href);
+      let href = link.onBuildUrl
+        ? link.onBuildUrl({
+            origin: field,
+            replaceVariables,
+          })
+        : link.url;
+
+      if (href) {
+        locationUtil.assureBaseUrl(href.replace(/\n/g, ''));
+        href = replaceVariables(href, variables);
+        href = locationUtil.processUrl(href);
+      }
 
       const info: LinkModel<Field> = {
         href,