1 files changed, 44 insertions, 1 deletions
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 1117eff6d3c..e9d36a01426 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -110,7 +110,7 @@ use crate::dom::pointerevent::{PointerEvent, PointerId};
 use crate::dom::processinginstruction::ProcessingInstruction;
 use crate::dom::range::WeakRangeVec;
 use crate::dom::raredata::NodeRareData;
-use crate::dom::servoparser::serialize_html_fragment;
+use crate::dom::servoparser::{ServoParser, serialize_html_fragment};
 use crate::dom::shadowroot::{IsUserAgentWidget, LayoutShadowRootHelpers, ShadowRoot};
 use crate::dom::stylesheetlist::StyleSheetListOwner;
 use crate::dom::svgsvgelement::{LayoutSVGSVGElementHelpers, SVGSVGElement};
@@ -316,6 +316,34 @@ impl Node {
         }
     }
 
+    /// Implements the "unsafely set HTML" algorithm as specified in:
+    /// <https://html.spec.whatwg.org/multipage/#concept-unsafely-set-html>
+    pub fn unsafely_set_html(
+        target: &Node,
+        context_element: &Element,
+        html: DOMString,
+        can_gc: CanGc,
+    ) {
+        // Step 1. Let newChildren be the result of the HTML fragment parsing algorithm.
+        let new_children = ServoParser::parse_html_fragment(context_element, html, true, can_gc);
+
+        // Step 2. Let fragment be a new DocumentFragment whose node document is contextElement's node document.
+
+        let context_document = context_element.owner_document();
+        let fragment = DocumentFragment::new(&context_document, can_gc);
+
+        // Step 3. For each node in newChildren, append node to fragment.
+        for child in new_children {
+            fragment
+                .upcast::<Node>()
+                .AppendChild(&child, can_gc)
+                .unwrap();
+        }
+
+        // Step 4. Replace all with fragment within target.
+        Node::replace_all(Some(fragment.upcast()), target, can_gc);
+    }
+
     pub(crate) fn clean_up_style_and_layout_data(&self) {
         self.owner_doc().cancel_animations_for_node(self);
         self.style_data.borrow_mut().take();
@@ -1283,6 +1311,21 @@ impl Node {
             is_shadow_host,
             shadow_root_mode,
             display,
+            doctype_name: self
+                .downcast::<DocumentType>()
+                .map(DocumentType::name)
+                .cloned()
+                .map(String::from),
+            doctype_public_identifier: self
+                .downcast::<DocumentType>()
+                .map(DocumentType::public_id)
+                .cloned()
+                .map(String::from),
+            doctype_system_identifier: self
+                .downcast::<DocumentType>()
+                .map(DocumentType::system_id)
+                .cloned()
+                .map(String::from),
         }
     }