Auto merge of #20036 - paavininanda:BrowsingNames, r=jdm

Browsing context names

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix https://github.com/servo/servo/issues/14453

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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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components/script/dom/htmliframeelement.rs

@@ -457,6 +457,22 @@ impl HTMLIFrameElementMethods for HTMLIFrameElement {
     make_getter!(FrameBorder, "frameborder");
     // https://html.spec.whatwg.org/multipage/#other-elements,-attributes-and-apis:attr-iframe-frameborder
     make_setter!(SetFrameBorder, "frameborder");
+
+    // https://html.spec.whatwg.org/multipage/#dom-iframe-name
+    fn SetName(&self, name: DOMString) {
+        if let Some(window) = self.GetContentWindow() {
+            window.set_name(name)
+        }
+    }
+
+    // https://html.spec.whatwg.org/multipage/#dom-iframe-name
+    fn Name(&self) -> DOMString {
+        if let Some(window) = self.GetContentWindow() {
+            window.get_name()
+        } else {
+            DOMString::new()
+        }
+    }
 }
 
 impl VirtualMethods for HTMLIFrameElement {
@@ -498,6 +514,11 @@ impl VirtualMethods for HTMLIFrameElement {
                     self.process_the_iframe_attributes(ProcessingMode::NotFirstTime);
                 }
             },
+            &local_name!("name") => {
+                let new_value = mutation.new_value(attr);
+                let value = new_value.as_ref().map_or("", |v| &v);
+                self.SetName(DOMString::from(value.to_owned()));
+            },
             _ => {},
         }
     }

components/script/dom/webidls/HTMLIFrameElement.webidl

@@ -10,9 +10,8 @@ interface HTMLIFrameElement : HTMLElement {
   // [CEReactions]
   //         attribute DOMString srcdoc;
 
-  // https://github.com/servo/servo/issues/14453
-  // [CEReactions]
-  // attribute DOMString name;
+  [CEReactions]
+  attribute DOMString name;
 
   [SameObject, PutForwards=value]
            readonly attribute DOMTokenList sandbox;

components/script/dom/webidls/Window.webidl

@@ -10,8 +10,7 @@
   [BinaryName="Self_", Replaceable] readonly attribute WindowProxy self;
   [Unforgeable] readonly attribute Document document;
 
-  // https://github.com/servo/servo/issues/14453
-  // attribute DOMString name;
+  attribute DOMString name;
 
   [/*PutForwards=href, */Unforgeable] readonly attribute Location location;
   readonly attribute History history;

components/script/dom/window.rs

@@ -1025,6 +1025,16 @@ impl WindowMethods for Window {
     fn TestRunner(&self) -> DomRoot<TestRunner> {
         self.test_runner.or_init(|| TestRunner::new(self.upcast()))
     }
+
+    // https://html.spec.whatwg.org/multipage/#dom-name
+    fn SetName(&self, name: DOMString) {
+        self.window_proxy().set_name(name);
+    }
+
+    // https://html.spec.whatwg.org/multipage/#dom-name
+    fn Name(&self) -> DOMString {
+        self.window_proxy().get_name()
+    }
 }
 
 impl Window {

components/script/dom/windowproxy.rs

@@ -2,12 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use dom::bindings::cell::DomRefCell;
 use dom::bindings::conversions::{ToJSValConvertible, root_from_handleobject};
 use dom::bindings::error::{Error, throw_dom_exception};
 use dom::bindings::inheritance::Castable;
 use dom::bindings::proxyhandler::{fill_property_descriptor, get_property_descriptor};
 use dom::bindings::reflector::{DomObject, Reflector};
 use dom::bindings::root::{Dom, DomRoot, RootedReference};
+use dom::bindings::str::DOMString;
 use dom::bindings::trace::JSTraceable;
 use dom::bindings::utils::{WindowProxyHandler, get_array_index_from_id, AsVoidPtr};
 use dom::dissimilaroriginwindow::DissimilarOriginWindow;
@@ -55,6 +57,8 @@ pub struct WindowProxy {
     /// In the case that this is a top-level window, this is our id.
     top_level_browsing_context_id: TopLevelBrowsingContextId,
 
+    /// The name of the browsing context
+    name: DomRefCell<DOMString>,
     /// The pipeline id of the currently active document.
     /// May be None, when the currently active document is in another script thread.
     /// We do not try to keep the pipeline id for documents in other threads,
@@ -80,10 +84,12 @@ impl WindowProxy {
                          parent: Option<&WindowProxy>)
                          -> WindowProxy
     {
+        let name = frame_element.map_or(DOMString::new(), |e| e.get_string_attribute(&local_name!("name")));
         WindowProxy {
             reflector: Reflector::new(),
             browsing_context_id: browsing_context_id,
             top_level_browsing_context_id: top_level_browsing_context_id,
+            name: DomRefCell::new(name),
             currently_active: Cell::new(currently_active),
             discarded: Cell::new(false),
             frame_element: frame_element.map(Dom::from_ref),
@@ -276,6 +282,14 @@ impl WindowProxy {
     pub fn currently_active(&self) -> Option<PipelineId> {
         self.currently_active.get()
     }
+
+    pub fn get_name(&self) -> DOMString {
+        self.name.borrow().clone()
+    }
+
+    pub fn set_name(&self, name: DOMString) {
+        *self.name.borrow_mut() = name;
+    }
 }
 
 #[allow(unsafe_code)]