feat(json-schema-2020-12): add support for defs deep extend

Refs #8513

src/core/plugins/json-schema-2020-12/components/keywords/$defs.jsx

@@ -5,6 +5,7 @@ import React, { useCallback, useState } from "react"
 
 import { schema } from "../../prop-types"
 import { useComponent, useIsExpandedDeeply } from "../../hooks"
+import { JSONSchemaDeepExpansionContext } from "../../context"
 
 const $defs = ({ schema }) => {
   const $defs = schema?.$defs || {}
@@ -15,20 +16,31 @@ const $defs = ({ schema }) => {
 
   const isExpandedDeeply = useIsExpandedDeeply()
   const [expanded, setExpanded] = useState(isExpandedDeeply)
+  const [expandedDeeply, setExpandedDeeply] = useState(false)
   const Accordion = useComponent("Accordion")
+  const ExpandDeepButton = useComponent("ExpandDeepButton")
   const JSONSchema = useComponent("JSONSchema")
 
+  /**
+   * Event handlers.
+   */
   const handleExpansion = useCallback(() => {
     setExpanded((prev) => !prev)
   }, [])
+  const handleExpansionDeep = useCallback((e, expandedDeepNew) => {
+    setExpanded(expandedDeepNew)
+    setExpandedDeeply(expandedDeepNew)
+  }, [])
 
   return (
+    <JSONSchemaDeepExpansionContext.Provider value={expandedDeeply}>
       <div className="json-schema-2020-12-keyword json-schema-2020-12-keyword--$defs">
         <Accordion expanded={expanded} onChange={handleExpansion}>
           <span className="json-schema-2020-12-keyword__name json-schema-2020-12-keyword__name--secondary">
             $defs
           </span>
         </Accordion>
+        <ExpandDeepButton expanded={expanded} onClick={handleExpansionDeep} />
         <span className="json-schema-2020-12__type">object</span>
         {expanded && (
           <ul>
@@ -40,6 +52,7 @@ const $defs = ({ schema }) => {
           </ul>
         )}
       </div>
+    </JSONSchemaDeepExpansionContext.Provider>
   )
 }