flow: page auto focus regression fix + e2e test (#1352)

Author: MykolaGolubyev

pom.xml

@@ -136,7 +136,7 @@
         <commonmark.version>0.23.0</commonmark.version>
         <antlr.version>4.5</antlr.version>
         <jackson.version>2.19.1</jackson.version>
-        <webtau.version>2.2</webtau.version>
+        <webtau.version>2.4</webtau.version>
         <jaxb.version>2.3.0</jaxb.version>
         <ant.version>1.10.11</ant.version>
         <ant-compress.version>1.5</ant-compress.version>

znai-docs/znai/release-notes/1.80/fix-2025-09-13-focus-page-content-on-load.md

@@ -0,0 +1 @@
+* Fix: Focus page content on page open or search open regression

znai-reactjs/src/layout/DocumentationLayout.tsx

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import React, { useRef, useState } from "react";
+import React, { useEffect, useRef, useState } from "react";
 
 import TocPanel from "./TocPanel";
 import { PageGenError } from "../doc-elements/page-gen-error/PageGenError";
@@ -93,6 +93,12 @@ export function DocumentationLayout({
 
   const panelFullClassName = mainPanelClassName + (isMobile ? " mobile" : "");
 
+  useEffect(() => {
+    if (contentRef.current) {
+      contentRef.current.focus();
+    }
+  }, [selectedTocItem]);
+
   return isMobile ? renderMobile() : renderDesktop();
 
   function renderPageContent() {

znai-tests/src/test/groovy/scenarios/docsContent.groovy

@@ -59,6 +59,13 @@ scenario('table of contents navigation') {
     browser.title.should == "Your Product: Page Three"
 }
 
+scenario('main content should have focus on page load and after navigation') {
+    browser.open(scaffoldServerUrl.get() + '/my-product/chapter-one/getting-started')
+    standardView.pageTitle.waitTo == "Getting Started"
+    browser.sendKeys(browser.keys.pageDown)
+    standardView.mainPanelScrollTop.waitToBe > 100
+}
+
 scenario('navigating back and forth should preserve scroll position') {
     standardView.gettingStartedTocItem.click()
     standardView.metaSection.waitTo visible