[APM] Fixes rare cases where KibanaLink is loaded outside of React context (#24705) (#24737)

* Fixes rare cases where KibanaLink will be loaded outside of React context and requires no redux connect dependency

* Fixes tests for updated Kibana link component

* Removes obsolete snapshot

x-pack/plugins/apm/public/components/app/ErrorGroupOverview/Watcher/WatcherFlyOut.js

@@ -33,7 +33,7 @@ import {
 
 import { XPACK_DOCS } from '../../../../utils/documentation/xpack';
 
-import { KibanaLink } from '../../../../utils/url';
+import { UnconnectedKibanaLink } from '../../../../utils/url';
 import { createErrorGroupWatch } from './createErrorGroupWatch';
 import chrome from 'ui/chrome';
 
@@ -187,12 +187,13 @@ export default class WatcherFlyout extends Component {
         <p>
           The watch is now ready and will send error reports for{' '}
           {this.props.serviceName}.{' '}
-          <KibanaLink
+          <UnconnectedKibanaLink
+            location={this.props.location}
             pathname={'/app/kibana'}
             hash={`/management/elasticsearch/watcher/watches/watch/${id}`}
           >
             View watch.
-          </KibanaLink>
+          </UnconnectedKibanaLink>
         </p>
       )
     });
@@ -419,6 +420,7 @@ export default class WatcherFlyout extends Component {
 }
 
 WatcherFlyout.propTypes = {
+  location: PropTypes.object.isRequired,
   isOpen: PropTypes.bool.isRequired,
   serviceName: PropTypes.string,
   onClose: PropTypes.func.isRequired

x-pack/plugins/apm/public/components/app/ErrorGroupOverview/view.js

@@ -53,6 +53,7 @@ class ErrorGroupOverview extends Component {
         />
 
         <WatcherFlyout
+          location={location}
           serviceName={serviceName}
           isOpen={this.state.isFlyoutOpen}
           onClose={this.onCloseFlyout}

x-pack/plugins/apm/public/utils/__test__/__snapshots__/url.test.js.snap

@@ -1,14 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`KibanaLinkComponent should render correct markup 1`] = `
-<a
-  className="euiLink euiLink--primary"
-  href="myBasePath/app/kibana#/discover?_a=(interval:auto,query:(language:lucene,query:'context.service.name:myServiceName AND error.grouping_key:myGroupId'),sort:('@timestamp':desc))&_g="
->
-  Go to Discover
-</a>
-`;
-
 exports[`RelativeLinkComponent should render correct markup 1`] = `
 <a
   className="euiLink euiLink--primary "
@@ -19,9 +10,23 @@ exports[`RelativeLinkComponent should render correct markup 1`] = `
 </a>
 `;
 
+exports[`UnconnectedKibanaLink should render correct markup 1`] = `
+<a
+  className="euiLink euiLink--primary"
+  href="myBasePath/app/kibana#/discover?_a=(interval:auto,query:(language:lucene,query:'context.service.name:myServiceName AND error.grouping_key:myGroupId'),sort:('@timestamp':desc))&_g="
+>
+  Go to Discover
+</a>
+`;
+
 exports[`ViewMLJob should render component 1`] = `
-<Connect(KibanaLinkComponent)
+<Component
   hash="/timeseriesexplorer"
+  location={
+    Object {
+      "search": "",
+    }
+  }
   pathname="/app/ml"
   query={
     Object {
@@ -37,5 +42,5 @@ exports[`ViewMLJob should render component 1`] = `
   }
 >
   View Job
-</Connect(KibanaLinkComponent)>
+</Component>
 `;

x-pack/plugins/apm/public/utils/__test__/url.test.js

@@ -11,7 +11,7 @@ import createHistory from 'history/createMemoryHistory';
 import {
   toQuery,
   fromQuery,
-  KibanaLinkComponent,
+  UnconnectedKibanaLink,
   RelativeLinkComponent,
   encodeKibanaSearchParams,
   decodeKibanaSearchParams,
@@ -182,7 +182,7 @@ describe('RelativeLinkComponent', () => {
   });
 });
 
-describe('KibanaLinkComponent', () => {
+describe('UnconnectedKibanaLink', () => {
   let wrapper;
 
   beforeEach(() => {
@@ -198,14 +198,14 @@ describe('KibanaLinkComponent', () => {
     };
 
     wrapper = mount(
-      <KibanaLinkComponent
+      <UnconnectedKibanaLink
         location={{ search: '' }}
         pathname={'/app/kibana'}
         hash={'/discover'}
         query={discoverQuery}
       >
         Go to Discover
-      </KibanaLinkComponent>
+      </UnconnectedKibanaLink>
     );
   });
 

x-pack/plugins/apm/public/utils/url.tsx

@@ -44,7 +44,8 @@ export function ViewMLJob({
   };
 
   return (
-    <KibanaLink
+    <UnconnectedKibanaLink
+      location={location}
       pathname={pathname}
       hash={hash}
       query={query}
@@ -164,13 +165,19 @@ export interface KibanaLinkArgs {
   className?: string;
 }
 
-export function KibanaLinkComponent({
+/**
+ * NOTE: Use this component directly if you have to use a link that is
+ * going to be rendered outside of React, e.g. in the Kibana global toast loader.
+ *
+ * You must remember to pass in location in that case.
+ */
+export const UnconnectedKibanaLink: React.SFC<KibanaLinkArgs> = ({
   location,
   pathname,
   hash,
   query = {},
   ...props
-}: KibanaLinkArgs) {
+}) => {
   // Preserve current _g and _a
   const currentQuery = toQuery(location.search);
   const nextQuery = {
@@ -186,14 +193,14 @@ export function KibanaLinkComponent({
   });
 
   return <EuiLink {...props} href={href} />;
-}
+};
 
 const withLocation = connect(
   ({ location }: { location: any }) => ({ location }),
   {}
 );
 export const RelativeLink = withLocation(RelativeLinkComponent);
-export const KibanaLink = withLocation(KibanaLinkComponent);
+export const KibanaLink = withLocation(UnconnectedKibanaLink);
 
 // This is downright horrible 😭 💔
 // Angular decodes encoded url tokens like "%2F" to "/" which causes the route to change.