[Resolver] model location.search in redux (#76140)

Read location.search from the redux store instead of a hook so that the entire view has a single (synchronized) source of truth.

Also, no longer pass `pushToQueryParams` function to various components.

x-pack/plugins/security_solution/public/resolver/models/location_search.ts

@@ -0,0 +1,39 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+/**
+ * The legacy `crumbEvent` and `crumbId` parameters.
+ * @deprecated
+ */
+export function breadcrumbParameters(
+  locationSearch: string,
+  resolverComponentInstanceID: string
+): { crumbEvent: string; crumbId: string } {
+  const urlSearchParams = new URLSearchParams(locationSearch);
+  const { eventKey, idKey } = parameterNames(resolverComponentInstanceID);
+  return {
+    // Use `''` for backwards compatibility with deprecated code.
+    crumbEvent: urlSearchParams.get(eventKey) ?? '',
+    crumbId: urlSearchParams.get(idKey) ?? '',
+  };
+}
+
+/**
+ * Parameter names based on the `resolverComponentInstanceID`.
+ */
+function parameterNames(
+  resolverComponentInstanceID: string
+): {
+  idKey: string;
+  eventKey: string;
+} {
+  const idKey: string = `resolver-${resolverComponentInstanceID}-id`;
+  const eventKey: string = `resolver-${resolverComponentInstanceID}-event`;
+  return {
+    idKey,
+    eventKey,
+  };
+}

x-pack/plugins/security_solution/public/resolver/store/actions.ts

@@ -101,9 +101,37 @@ interface UserSelectedRelatedEventCategory {
   };
 }
 
+/**
+ * Used by `useStateSyncingActions` hook.
+ * This is dispatched when external sources provide new parameters for Resolver.
+ * When the component receives a new 'databaseDocumentID' prop, this is fired.
+ */
+interface AppReceivedNewExternalProperties {
+  type: 'appReceivedNewExternalProperties';
+  /**
+   * Defines the externally provided properties that Resolver acknowledges.
+   */
+  payload: {
+    /**
+     * the `_id` of an ES document. This defines the origin of the Resolver graph.
+     */
+    databaseDocumentID?: string;
+    /**
+     * An ID that uniquely identifies this Resolver instance from other concurrent Resolvers.
+     */
+    resolverComponentInstanceID: string;
+
+    /**
+     * The `search` part of the URL of this page.
+     */
+    locationSearch: string;
+  };
+}
+
 export type ResolverAction =
   | CameraAction
   | DataAction
+  | AppReceivedNewExternalProperties
   | UserBroughtProcessIntoView
   | UserFocusedOnResolverNode
   | UserSelectedResolverNode

x-pack/plugins/security_solution/public/resolver/store/data/action.ts

@@ -60,30 +60,10 @@ interface ServerReturnedRelatedEventData {
   readonly payload: ResolverRelatedEvents;
 }
 
-/**
- * Used by `useStateSyncingActions` hook.
- * This is dispatched when external sources provide new parameters for Resolver.
- * When the component receives a new 'databaseDocumentID' prop, this is fired.
- */
-interface AppReceivedNewExternalProperties {
-  type: 'appReceivedNewExternalProperties';
-  /**
-   * Defines the externally provided properties that Resolver acknowledges.
-   */
-  payload: {
-    /**
-     * the `_id` of an ES document. This defines the origin of the Resolver graph.
-     */
-    databaseDocumentID?: string;
-    resolverComponentInstanceID: string;
-  };
-}
-
 export type DataAction =
   | ServerReturnedResolverData
   | ServerFailedToReturnResolverData
   | ServerFailedToReturnRelatedEventData
   | ServerReturnedRelatedEventData
-  | AppReceivedNewExternalProperties
   | AppRequestedResolverData
   | AppAbortedResolverDataRequest;

x-pack/plugins/security_solution/public/resolver/store/data/selectors.test.ts

@@ -6,8 +6,8 @@
 
 import * as selectors from './selectors';
 import { DataState } from '../../types';
+import { ResolverAction } from '../actions';
 import { dataReducer } from './reducer';
-import { DataAction } from './action';
 import { createStore } from 'redux';
 import {
   mockTreeWithNoAncestorsAnd2Children,
@@ -20,7 +20,7 @@ import { uniquePidForProcess } from '../../models/process_event';
 import { EndpointEvent } from '../../../../common/endpoint/types';
 
 describe('data state', () => {
-  let actions: DataAction[] = [];
+  let actions: ResolverAction[] = [];
 
   /**
    * Get state, given an ordered collection of actions.
@@ -68,7 +68,13 @@ describe('data state', () => {
       actions = [
         {
           type: 'appReceivedNewExternalProperties',
-          payload: { databaseDocumentID, resolverComponentInstanceID },
+          payload: {
+            databaseDocumentID,
+            resolverComponentInstanceID,
+
+            // `locationSearch` doesn't matter for this test
+            locationSearch: '',
+          },
         },
       ];
     });
@@ -120,7 +126,13 @@ describe('data state', () => {
       actions = [
         {
           type: 'appReceivedNewExternalProperties',
-          payload: { databaseDocumentID, resolverComponentInstanceID },
+          payload: {
+            databaseDocumentID,
+            resolverComponentInstanceID,
+
+            // `locationSearch` doesn't matter for this test
+            locationSearch: '',
+          },
         },
         {
           type: 'appRequestedResolverData',
@@ -182,6 +194,8 @@ describe('data state', () => {
           payload: {
             databaseDocumentID: firstDatabaseDocumentID,
             resolverComponentInstanceID: resolverComponentInstanceID1,
+            // `locationSearch` doesn't matter for this test
+            locationSearch: '',
           },
         },
         // this happens when the middleware starts the request
@@ -195,6 +209,8 @@ describe('data state', () => {
           payload: {
             databaseDocumentID: secondDatabaseDocumentID,
             resolverComponentInstanceID: resolverComponentInstanceID2,
+            // `locationSearch` doesn't matter for this test
+            locationSearch: '',
           },
         },
       ];

x-pack/plugins/security_solution/public/resolver/store/reducer.ts

@@ -48,6 +48,13 @@ const uiReducer: Reducer<ResolverUIState, ResolverAction> = (
       selectedNode: nodeID,
     };
     return next;
+  } else if (action.type === 'appReceivedNewExternalProperties') {
+    const next: ResolverUIState = {
+      ...state,
+      locationSearch: action.payload.locationSearch,
+      resolverComponentInstanceID: action.payload.resolverComponentInstanceID,
+    };
+    return next;
   } else {
     return state;
   }

x-pack/plugins/security_solution/public/resolver/store/selectors.ts

@@ -301,6 +301,15 @@ export const ariaFlowtoNodeID: (
   }
 );
 
+/**
+ * The legacy `crumbEvent` and `crumbId` parameters.
+ * @deprecated
+ */
+export const breadcrumbParameters = composeSelectors(
+  uiStateSelector,
+  uiSelectors.breadcrumbParameters
+);
+
 /**
  * Calls the `secondSelector` with the result of the `selector`. Use this when re-exporting a
  * concern-specific selector. `selector` should return the concern-specific state.

x-pack/plugins/security_solution/public/resolver/store/ui/selectors.ts

@@ -1,30 +1,50 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License;
- * you may not use this file except in compliance with the Elastic License.
- */
-
-import { createSelector } from 'reselect';
-import { ResolverUIState } from '../../types';
-
-/**
- * id of the "current" tree node (fake-focused)
- */
-export const ariaActiveDescendant = createSelector(
-  (uiState: ResolverUIState) => uiState,
-  /* eslint-disable no-shadow */
-  ({ ariaActiveDescendant }) => {
-    return ariaActiveDescendant;
-  }
-);
-
-/**
- * id of the currently "selected" tree node
- */
-export const selectedNode = createSelector(
-  (uiState: ResolverUIState) => uiState,
-  /* eslint-disable no-shadow */
-  ({ selectedNode }: ResolverUIState) => {
-    return selectedNode;
-  }
-);
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { createSelector } from 'reselect';
+import { ResolverUIState } from '../../types';
+import * as locationSearchModel from '../../models/location_search';
+
+/**
+ * id of the "current" tree node (fake-focused)
+ */
+export const ariaActiveDescendant = createSelector(
+  (uiState: ResolverUIState) => uiState,
+  /* eslint-disable no-shadow */
+  ({ ariaActiveDescendant }) => {
+    return ariaActiveDescendant;
+  }
+);
+
+/**
+ * id of the currently "selected" tree node
+ */
+export const selectedNode = createSelector(
+  (uiState: ResolverUIState) => uiState,
+  /* eslint-disable no-shadow */
+  ({ selectedNode }: ResolverUIState) => {
+    return selectedNode;
+  }
+);
+
+/**
+ * The legacy `crumbEvent` and `crumbId` parameters.
+ * @deprecated
+ */
+export const breadcrumbParameters = createSelector(
+  (state: ResolverUIState) => state.locationSearch,
+  (state: ResolverUIState) => state.resolverComponentInstanceID,
+  (locationSearch, resolverComponentInstanceID) => {
+    if (locationSearch === undefined || resolverComponentInstanceID === undefined) {
+      // Equivalent to `null`
+      return {
+        crumbId: '',
+        crumbEvent: '',
+      };
+    }
+    return locationSearchModel.breadcrumbParameters(locationSearch, resolverComponentInstanceID);
+  }
+);

x-pack/plugins/security_solution/public/resolver/types.ts

@@ -50,6 +50,16 @@ export interface ResolverUIState {
    * `nodeID` of the selected node
    */
   readonly selectedNode: string | null;
+
+  /**
+   * The `search` part of the URL.
+   */
+  readonly locationSearch?: string;
+
+  /**
+   * An ID that is used to differentiate this Resolver instance from others concurrently running on the same page.
+   */
+  readonly resolverComponentInstanceID?: string;
 }
 
 /**
@@ -198,7 +208,12 @@ export interface DataState {
    * The id used for the pending request, if there is one.
    */
   readonly pendingRequestDatabaseDocumentID?: string;
-  readonly resolverComponentInstanceID: string | undefined;
+
+  /**
+   * An ID that is used to differentiate this Resolver instance from others concurrently running on the same page.
+   * Used to prevent collisions in things like query parameters.
+   */
+  readonly resolverComponentInstanceID?: string;
 
   /**
    * The parameters and response from the last successful request.
@@ -510,8 +525,9 @@ export interface ResolverProps {
    * Used as the origin of the Resolver graph.
    */
   databaseDocumentID?: string;
+
   /**
-   * A string literal describing where in the application resolver is located.
+   * An ID that is used to differentiate this Resolver instance from others concurrently running on the same page.
    * Used to prevent collisions in things like query parameters.
    */
   resolverComponentInstanceID: string;

x-pack/plugins/security_solution/public/resolver/view/panels/event_counts_for_process.tsx

@@ -12,7 +12,7 @@ import { StyledBreadcrumbs } from './panel_content_utilities';
 
 import * as event from '../../../../common/endpoint/models/event';
 import { ResolverEvent, ResolverNodeStats } from '../../../../common/endpoint/types';
-import { CrumbInfo } from '../../types';
+import { useReplaceBreadcrumbParameters } from '../use_replace_breadcrumb_parameters';
 
 /**
  * This view gives counts for all the related events of a process grouped by related event type.
@@ -27,11 +27,9 @@ import { CrumbInfo } from '../../types';
  */
 export const EventCountsForProcess = memo(function EventCountsForProcess({
   processEvent,
-  pushToQueryParams,
   relatedStats,
 }: {
   processEvent: ResolverEvent;
-  pushToQueryParams: (queryStringKeyValuePair: CrumbInfo) => unknown;
   relatedStats: ResolverNodeStats;
 }) {
   interface EventCountsTableView {
@@ -62,6 +60,7 @@ export const EventCountsForProcess = memo(function EventCountsForProcess({
       defaultMessage: 'Events',
     }
   );
+  const pushToQueryParams = useReplaceBreadcrumbParameters();
   const crumbs = useMemo(() => {
     return [
       {