[8.x] [Lens][Embeddable] Use reload$ api for custom component (#203755)…

… (#204946)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Lens][Embeddable] Use reload$ api for custom component
(#203755)](#203755)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Marco
Liberati","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-12-19T13:44:12Z","message":"[Lens][Embeddable]
Use reload$ api for custom component (#203755)\n\n##
Summary\r\n\r\nFixes #203457 \r\n\r\nUse the `lastReloadRequestTime`
prop to trigger a reload in place of the\r\nlegacy `searchSessionId`
system.","sha":"3875d26ae8c9be4b5684b7e582eb237113286f99","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Visualizations","release_note:skip","Feature:Lens","v9.0.0","backport:prev-minor"],"title":"[Lens][Embeddable]
Use reload$ api for custom
component","number":203755,"url":"https://github.com/elastic/kibana/pull/203755","mergeCommit":{"message":"[Lens][Embeddable]
Use reload$ api for custom component (#203755)\n\n##
Summary\r\n\r\nFixes #203457 \r\n\r\nUse the `lastReloadRequestTime`
prop to trigger a reload in place of the\r\nlegacy `searchSessionId`
system.","sha":"3875d26ae8c9be4b5684b7e582eb237113286f99"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/203755","number":203755,"mergeCommit":{"message":"[Lens][Embeddable]
Use reload$ api for custom component (#203755)\n\n##
Summary\r\n\r\nFixes #203457 \r\n\r\nUse the `lastReloadRequestTime`
prop to trigger a reload in place of the\r\nlegacy `searchSessionId`
system.","sha":"3875d26ae8c9be4b5684b7e582eb237113286f99"}}]}]
BACKPORT-->

Co-authored-by: Marco Liberati <[email protected]>

x-pack/plugins/lens/public/react_embeddable/renderer/lens_custom_renderer_component.tsx

@@ -61,6 +61,7 @@ export function LensRenderer({
   disabledActions,
   searchSessionId,
   hidePanelTitles,
+  lastReloadRequestTime,
   ...props
 }: LensRendererProps) {
   // Use the settings interface to store panel settings
@@ -86,6 +87,11 @@ export function LensRenderer({
 
   const showPanelChrome = Boolean(withDefaultActions) || (extraActions?.length || 0) > 0;
 
+  const reload$ = useMemo(() => new BehaviorSubject<void>(undefined), []);
+  useEffect(() => {
+    reload$.next();
+  }, [reload$, lastReloadRequestTime]);
+
   // Re-render on changes
   // internally the embeddable will evaluate whether it is worth to actual render or not
   useEffect(() => {
@@ -152,6 +158,7 @@ export function LensRenderer({
           attributes: props.attributes,
         }),
         hidePanelTitle: hidePanelTitles$,
+        reload$, // trigger a reload (replacement for deprepcated searchSessionId)
       })}
       onApiAvailable={setLensApi}
       hidePanelChrome={!showPanelChrome}