filter y-xml when domFilter is set

rollup.test.js

@@ -3,7 +3,7 @@ import commonjs from 'rollup-plugin-commonjs'
 import multiEntry from 'rollup-plugin-multi-entry'
 
 export default {
-  input: 'test/*.tests.js',
+  input: 'test/y-xml.tests.js',
   name: 'y-tests',
   sourcemap: true,
   output: {
@@ -11,12 +11,12 @@ export default {
     format: 'umd'
   },
   plugins: [
+    multiEntry(),
     nodeResolve({
       main: true,
       module: true,
       browser: true
     }),
-    commonjs(),
-    multiEntry()
+    commonjs()
   ]
 }

src/Type/y-xml/YXmlFragment.js

@@ -143,6 +143,23 @@ export default class YXmlFragment extends YArray {
   }
   setDomFilter (f) {
     this._domFilter = f
+    let attributes = new Map()
+    if (this.getAttributes !== undefined) {
+      let attrs = this.getAttributes()
+      for (let key in attrs) {
+        attributes.set(key, attrs[key])
+      }
+    }
+    let result = this._domFilter(this.nodeName, new Map(attributes))
+    if (result === null) {
+      this._delete(this._y)
+    } else {
+      attributes.forEach((value, key) => {
+        if (!result.has(key)) {
+          this.removeAttribute(key)
+        }
+      })
+    }
     this.forEach(xml => {
       xml.setDomFilter(f)
     })