add category hints from methodlist

ccp/js/methodeditorcontroller.js

@@ -763,8 +763,9 @@ class CCPMethodEditorController extends HTMLElement{
   }
   
   renderCategoryHints(){
-    const cats1 = ["Uncategorized", this.getCurrentCategory()]
-    const cats = [...new Set(cats1)]
+    const s = new Set(["Uncategorized", this.getCurrentCategory()])
+    const ml = document.querySelector("d4s-ccp-methodlist")
+    const cats = ml ? [...s].concat(ml.getCategoryHints()) : [...s]
     return `
       <datalist id="categoryhints">
         ${cats.map(c=>`<option value="${c}">${c}</option>`)}

ccp/js/methodlistcontroller.js

@@ -195,6 +195,15 @@ class CCPMethodList extends HTMLElement{
       }, {})
     }
     
+    getCategoryHints(){
+      const s = new Set()
+      for(let i=0; i < this.#data.length; i++){
+        const cat = m.metadata.filter(md=>md.role === "category").map(md=>md.title)
+        s.add(cat)
+      }
+      return [...s]
+    }
+    
     exportCategory(category){
       Promise.all(
         this.#filtered[category].map(m=>this.exportMethod(m.id))