DashboardScenes: TemplateSrv should return timeRange from scenes if context found (#90735)

* templateSrv should return timeRange from scenes if context found

* add test

* prettier

* test

public/app/features/templating/template_srv.test.ts

@@ -30,12 +30,16 @@ variableAdapters.setInit(() => [
 ]);
 
 const interpolateMock = jest.fn();
+const timeRangeMock = jest.fn().mockReturnValue({
+  state: { value: { from: dateTime(1594671549254), to: dateTime(1594671549254), raw: { from: '12', to: '14' } } },
+});
 
 jest.mock('@grafana/scenes', () => ({
   ...jest.requireActual('@grafana/scenes'),
   sceneGraph: {
     ...jest.requireActual('@grafana/scenes').sceneGraph,
     interpolate: (...args: unknown[]) => interpolateMock(...args),
+    getTimeRange: (...args: unknown[]) => timeRangeMock(...args),
   },
 }));
 
@@ -889,5 +893,27 @@ describe('templateSrv', () => {
       expect(podVar.current.value).toEqual(['pA', 'pB']);
       expect(podVar.current.text).toEqual(['podA', 'podB']);
     });
+
+    it('Should return timeRange from scenes context', () => {
+      window.__grafanaSceneContext = new EmbeddedScene({
+        body: new SceneCanvasText({ text: 'hello' }),
+      });
+      _templateSrv.updateTimeRange({
+        from: dateTime(1594671549254),
+        to: dateTime(1594671549254),
+        raw: { from: '10', to: '10' },
+      });
+
+      const deactivate = window.__grafanaSceneContext.activate();
+
+      expect(_templateSrv.timeRange).not.toBeNull();
+      expect(_templateSrv.timeRange).not.toBeUndefined();
+      expect(_templateSrv.timeRange!.raw).toEqual({ from: '12', to: '14' });
+      expect(timeRangeMock).toHaveBeenCalled();
+
+      deactivate();
+
+      expect(_templateSrv.timeRange!.raw).toEqual({ from: '10', to: '10' });
+    });
   });
 });

public/app/features/templating/template_srv.ts

@@ -51,7 +51,7 @@ export class TemplateSrv implements BaseTemplateSrv {
   private regex = variableRegex;
   private index: any = {};
   private grafanaVariables = new Map<string, any>();
-  private timeRange?: TimeRange | null = null;
+  private _timeRange?: TimeRange | null = null;
   private _adhocFiltersDeprecationWarningLogged = new Map<string, boolean>();
 
   constructor(private dependencies: TemplateSrvDependencies = runtimeDependencies) {
@@ -60,7 +60,7 @@ export class TemplateSrv implements BaseTemplateSrv {
 
   init(variables: any, timeRange?: TimeRange) {
     this._variables = variables;
-    this.timeRange = timeRange;
+    this._timeRange = timeRange;
     this.updateIndex();
   }
 
@@ -83,6 +83,16 @@ export class TemplateSrv implements BaseTemplateSrv {
     return this.dependencies.getVariables();
   }
 
+  get timeRange(): TimeRange | null | undefined {
+    if (window.__grafanaSceneContext && window.__grafanaSceneContext.isActive) {
+      const sceneTimeRange = sceneGraph.getTimeRange(window.__grafanaSceneContext);
+
+      return sceneTimeRange.state.value;
+    }
+
+    return this._timeRange;
+  }
+
   updateIndex() {
     const existsOrEmpty = (value: unknown) => value || value === '';
 
@@ -110,7 +120,7 @@ export class TemplateSrv implements BaseTemplateSrv {
   }
 
   updateTimeRange(timeRange: TimeRange) {
-    this.timeRange = timeRange;
+    this._timeRange = timeRange;
     this.updateIndex();
   }