TimeSrv: Add Scenes compatibility patch (#75728)

* TimeSrv: Add scenes compatibility patch

* Get that lint out of my way

public/app/features/dashboard/services/TimeSrv.test.ts

@@ -3,6 +3,7 @@ import { ContextSrvStub } from 'test/specs/helpers';
 
 import { dateTime, isDateTime } from '@grafana/data';
 import { config, HistoryWrapper, locationService, setLocationService } from '@grafana/runtime';
+import { SceneTimeRange } from '@grafana/scenes';
 
 import { TimeModel } from '../state/TimeModel';
 
@@ -342,4 +343,25 @@ describe('timeSrv', () => {
       });
     });
   });
+
+  describe('Scenes compatibility', () => {
+    it('should use scene provided range if active', () => {
+      timeSrv.setTime({ from: 'now-6h', to: 'now' });
+
+      const timeRange = new SceneTimeRange({
+        from: 'now-1h',
+        to: 'now',
+      });
+      window.__timeRangeSceneObject = timeRange;
+
+      let time = timeSrv.timeRange();
+      expect(time.raw.from).toBe('now-6h');
+      expect(time.raw.to).toBe('now');
+
+      timeRange.activate();
+      time = timeSrv.timeRange();
+      expect(time.raw.from).toBe('now-1h');
+      expect(time.raw.to).toBe('now');
+    });
+  });
 });

public/app/features/dashboard/services/TimeSrv.ts

@@ -338,6 +338,12 @@ export class TimeSrv {
   };
 
   timeRange(): TimeRange {
+    // Scenes can set this global object to the current time range.
+    // This is a patch to support data sources that rely on TimeSrv.getTimeRange()
+    if (window.__timeRangeSceneObject && window.__timeRangeSceneObject.isActive) {
+      return window.__timeRangeSceneObject.state.value;
+    }
+
     return getTimeRange(this.time, this.timeModel);
   }
 

public/app/types/window.d.ts

@@ -1,5 +1,11 @@
 export declare global {
   interface Window {
+    __timeRangeSceneObject: {
+      isActive: boolean;
+      state: {
+        value: TimeRange;
+      };
+    };
     __grafana_app_bundle_loaded: boolean;
     __grafana_public_path__: string;
     __grafana_load_failed: () => void;