fix: resolve [object Object] in ChangeHistory aria-label and dropdown scrolbar

.changeset/change-history-label-and-scrollbar.md

@@ -0,0 +1,12 @@
+---
+'@doc-kit/generator-react': patch
+---
+
+Fix `[object Object]` in ChangeHistory aria-label and dropdown horizontal scrollbar
+
+- Change history labels were passing a JSX AST object instead of a plain text
+  string to the `ChangeHistory` component, causing `aria-label` to render as
+  `[object Object]`. Labels are now extracted as plain text via `remark-parse`.
+- The ChangeHistory dropdown could show a horizontal scrollbar when label text
+  overflowed the fixed-width container. Added `overflow-wrap` and `word-break`
+  rules to prevent this.

packages/react/src/html/ui/index.css

@@ -120,6 +120,12 @@ main {
 
       div[role='menu'] {
         left: 0;
+
+        /* Prevent long labels from overflowing dropdown width */
+        a[role='menuitem'] div {
+          overflow-wrap: anywhere;
+          word-break: break-word;
+        }
       }
     }
   }

packages/react/src/jsx-ast/utils/__tests__/buildContent.test.mjs

@@ -3,7 +3,7 @@ import { describe, it } from 'node:test';
 
 import { setConfig } from '@doc-kit/core/utils/configuration/index.mjs';
 
-import { transformHeadingNode } from '../buildContent.mjs';
+import { transformHeadingNode, gatherChangeEntries } from '../buildContent.mjs';
 
 const heading = {
   type: 'heading',
@@ -67,3 +67,78 @@ describe('transformHeadingNode (deprecation Type -> AlertBox level)', () => {
     assert.equal(levelAttr.value, 'danger');
   });
 });
+
+describe('gatherChangeEntries', () => {
+  it('returns empty array when entry has no changes', () => {
+    assert.deepEqual(gatherChangeEntries({}), []);
+  });
+
+  it('collects lifecycle changes with formatted labels', () => {
+    const result = gatherChangeEntries({
+      added: ['v20.0.0', 'v18.0.0'],
+      deprecated: 'v22.0.0',
+    });
+
+    assert.equal(result.length, 2);
+    assert.deepEqual(result[0], {
+      versions: ['v20.0.0', 'v18.0.0'],
+      label: 'Added in: v20.0.0, v18.0.0',
+    });
+    assert.deepEqual(result[1], {
+      versions: ['v22.0.0'],
+      label: 'Deprecated in: v22.0.0',
+    });
+  });
+
+  it('extracts plain text labels from markdown descriptions', () => {
+    const result = gatherChangeEntries({
+      changes: [
+        {
+          version: 'v25.0.0',
+          description:
+            'Add `modifyPrototype` option to conditionally modify the prototype.',
+          'pr-url': 'https://github.com/nodejs/node/pull/123',
+        },
+      ],
+    });
+
+    assert.equal(result.length, 1);
+    assert.equal(
+      result[0].label,
+      'Add `modifyPrototype` option to conditionally modify the prototype.'
+    );
+    assert.equal(result[0].url, 'https://github.com/nodejs/node/pull/123');
+    assert.deepEqual(result[0].versions, ['v25.0.0']);
+  });
+
+  it('produces a string label, not an object (regression for [object Object])', () => {
+    const result = gatherChangeEntries({
+      changes: [
+        {
+          version: 'v1.0.0',
+          description: 'Some **bold** and _italic_ text.',
+        },
+      ],
+    });
+
+    assert.equal(typeof result[0].label, 'string');
+    assert.equal(result[0].label, 'Some **bold** and _italic_ text.');
+  });
+
+  it('combines lifecycle changes and explicit changes', () => {
+    const result = gatherChangeEntries({
+      added: 'v20.0.0',
+      changes: [
+        {
+          version: 'v21.0.0',
+          description: 'Added new feature.',
+          'pr-url': 'https://example.com/pr/1',
+        },
+      ],
+    });
+
+    assert.equal(result.length, 2);
+    assert.equal(result[0].label, 'Added in: v20.0.0');
+    assert.equal(result[1].label, 'Added new feature.');
+  });
+});

packages/react/src/jsx-ast/utils/buildContent.mjs

@@ -8,9 +8,12 @@ import {
 } from '@doc-kit/core/utils/configuration/templates.mjs';
 import { omitKeys } from '@doc-kit/core/utils/misc.mjs';
 import { UNIST } from '@doc-kit/core/utils/queries/index.mjs';
+import { transformNodesToString } from '@doc-kit/core/utils/unist.mjs';
 import { h as createElement } from 'hastscript';
 import { slice } from 'mdast-util-slice-markdown';
 import readingTime from 'reading-time';
+import remarkParse from 'remark-parse';
+import { unified } from 'unified';
 import { u as createTree } from 'unist-builder';
 import { SKIP, visit } from 'unist-util-visit';
 
@@ -35,6 +38,18 @@ import {
   getFullName,
 } from './signature.mjs';
 
+/**
+ * Converts a markdown string to plain text by parsing it and extracting
+ * text and inline code values.
+ *
+ * @param {string} markdown - The markdown string to convert.
+ * @returns {string} The plain text representation.
+ */
+const toPlainText = markdown =>
+  transformNodesToString(
+    unified().use(remarkParse).parse(markdown).children
+  ).trim();
+
 /**
  * Processes lifecycle and change history data into a sorted array of change entries.
  * @param {import('@doc-kit/core/generators/metadata/types').MetadataEntry} entry - The metadata entry
@@ -48,11 +63,10 @@ export const gatherChangeEntries = entry => {
       label: `${label}: ${enforceArray(entry[field]).join(', ')}`,
     }));
 
-  // Explicit changes with parsed JSX labels
+  // Explicit changes with plain-text labels extracted from markdown
   const explicitChanges = (entry.changes || []).map(change => ({
     versions: enforceArray(change.version),
-    label: remark().runSync(remark().parse(change.description)).body[0]
-      .expression,
+    label: toPlainText(change.description),
     url: change['pr-url'],
   }));