Implement XMLSerializer interface

components/script/dom/mod.rs

@@ -533,6 +533,7 @@ pub mod xmldocument;
 pub mod xmlhttprequest;
 pub mod xmlhttprequesteventtarget;
 pub mod xmlhttprequestupload;
+pub mod xmlserializer;
 pub mod xr;
 pub mod xrframe;
 pub mod xrlayer;

components/script/dom/webidls/XMLSerializer.webidl

@@ -0,0 +1,13 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+/*
+ * The origin of this IDL file is
+ * https://w3c.github.io/DOM-Parsing/#the-domparser-interface
+ */
+
+[Constructor]
+interface XMLSerializer {
+  [Throws]
+  DOMString serializeToString(Node root);
+};

components/script/dom/xmlserializer.rs

@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::bindings::codegen::Bindings::XMLSerializerBinding;
+use crate::dom::bindings::codegen::Bindings::XMLSerializerBinding::XMLSerializerMethods;
+use crate::dom::bindings::error::{Error, Fallible};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
+use crate::dom::bindings::root::{Dom, DomRoot};
+use crate::dom::bindings::str::DOMString;
+use crate::dom::node::Node;
+use crate::dom::window::Window;
+use dom_struct::dom_struct;
+use xml5ever::serialize::{serialize, SerializeOpts, TraversalScope};
+
+#[dom_struct]
+pub struct XMLSerializer {
+    reflector_: Reflector,
+    window: Dom<Window>,
+}
+
+impl XMLSerializer {
+    fn new_inherited(window: &Window) -> XMLSerializer {
+        XMLSerializer {
+            reflector_: Reflector::new(),
+            window: Dom::from_ref(window),
+        }
+    }
+
+    pub fn new(window: &Window) -> DomRoot<XMLSerializer> {
+        reflect_dom_object(
+            Box::new(XMLSerializer::new_inherited(window)),
+            window,
+            XMLSerializerBinding::Wrap,
+        )
+    }
+
+    pub fn Constructor(window: &Window) -> Fallible<DomRoot<XMLSerializer>> {
+        Ok(XMLSerializer::new(window))
+    }
+}
+
+impl XMLSerializerMethods for XMLSerializer {
+    // https://w3c.github.io/DOM-Parsing/#the-xmlserializer-interface
+    fn SerializeToString(&self, root: &Node) -> Fallible<DOMString> {
+        let mut writer = vec![];
+        match serialize(
+            &mut writer,
+            &root,
+            SerializeOpts {
+                traversal_scope: TraversalScope::IncludeNode,
+            },
+        ) {
+            Ok(_) => Ok(DOMString::from(String::from_utf8(writer).unwrap())),
+            Err(_) => Err(Error::Type(String::from(
+                "root must be a Node or an Attr object",
+            ))),
+        }
+    }
+}

tests/wpt/metadata/domparsing/XMLSerializer-serializeToString.html.ini

@@ -1,11 +1,5 @@
 [XMLSerializer-serializeToString.html]
   type: testharness
-  [check  XMLSerializer.serializeToString method could parsing xmldoc to string]
-    expected: FAIL
-
-  [check XMLSerializer.serializeToString method could parsing xmldoc to string]
-    expected: FAIL
-
   [Check if the default namespace is correctly reset.]
     expected: FAIL
 

tests/wpt/metadata/domparsing/interfaces.any.js.ini

@@ -5,39 +5,6 @@
   [interfaces]
     expected: FAIL
 
-  [XMLSerializer interface: existence and properties of interface object]
-    expected: FAIL
-
-  [XMLSerializer interface object length]
-    expected: FAIL
-
-  [XMLSerializer interface object name]
-    expected: FAIL
-
-  [XMLSerializer interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [XMLSerializer interface: existence and properties of interface prototype object's "constructor" property]
-    expected: FAIL
-
-  [XMLSerializer interface: existence and properties of interface prototype object's @@unscopables property]
-    expected: FAIL
-
-  [XMLSerializer interface: operation serializeToString(Node)]
-    expected: FAIL
-
-  [Stringification of new XMLSerializer()]
-    expected: FAIL
-
-  [XMLSerializer interface: calling serializeToString(Node) on new XMLSerializer() with too few arguments must throw TypeError]
-    expected: FAIL
-
-  [XMLSerializer must be primary interface of new XMLSerializer()]
-    expected: FAIL
-
-  [XMLSerializer interface: new XMLSerializer() must inherit property "serializeToString(Node)" with the proper type]
-    expected: FAIL
-
   [ShadowRoot interface: attribute innerHTML]
     expected: FAIL
 

tests/wpt/metadata/domparsing/xml-serialization.xhtml.ini

@@ -1,20 +1,5 @@
 [xml-serialization.xhtml]
   type: testharness
-  [Comment: containing --]
-    expected: FAIL
-
-  [Comment: starting with -]
-    expected: FAIL
-
-  [Comment: ending with -]
-    expected: FAIL
-
-  [Comment: containing -->]
-    expected: FAIL
-
-  [DocumentType: empty public and system id]
-    expected: FAIL
-
   [DocumentType: empty system id]
     expected: FAIL
 
@@ -33,18 +18,6 @@
   [DocumentType: 'APOSTROPHE' (U+0027) and 'QUOTATION MARK' (U+0022)]
     expected: FAIL
 
-  [ProcessingInstruction: empty data]
-    expected: FAIL
-
-  [ProcessingInstruction: non-empty data]
-    expected: FAIL
-
-  [ProcessingInstruction: target contains xml]
-    expected: FAIL
-
-  [ProcessingInstruction: target contains a 'COLON' (U+003A)]
-    expected: FAIL
-
   [Element: href attributes are not percent-encoded]
     expected: FAIL
 

tests/wpt/mozilla/meta/MANIFEST.json

@@ -20254,7 +20254,7 @@
    "testharness"
   ],
   "mozilla/interfaces.html": [
-   "f8d8ab879f84bf03f89b12d5d010c83c1025265a",
+   "a2b9fd23948319fabc0b5fff550b9565704b6678",
    "testharness"
   ],
   "mozilla/interfaces.js": [

tests/wpt/mozilla/tests/mozilla/interfaces.html

@@ -246,6 +246,7 @@ test_interfaces([
   "XMLHttpRequest",
   "XMLHttpRequestEventTarget",
   "XMLHttpRequestUpload",
+  "XMLSerializer",
   "console",
 ]);
 </script>