From ddfb8805dc1c2df97f0596cf063935b4f3c5b90b Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Sun, 27 Nov 2016 14:37:04 +0100
Subject: [PATCH] Make WebIDL static methods take a more specific global if
 possible

---
 components/script/dom/bindings/codegen/CodegenRust.py |  9 +++++----
 components/script/dom/bluetoothuuid.rs                | 10 +++++-----
 components/script/dom/css.rs                          |  4 ++--
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index 09681e579b90..28d0d9af459e 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -3378,12 +3378,13 @@ def __init__(self, descriptor, name):
             Argument('*mut JSVal', 'vp'),
         ]
         CGAbstractMethod.__init__(self, descriptor, name, "bool", args, extern=True)
+        self.exposureSet = descriptor.interface.exposureSet
 
     def definition_body(self):
-        preamble = CGGeneric("""\
-let global = GlobalScope::from_object(JS_CALLEE(cx, vp).to_object());
-""")
-        return CGList([preamble, self.generate_code()])
+        preamble = "let global = GlobalScope::from_object(JS_CALLEE(cx, vp).to_object());\n"
+        if len(self.exposureSet) == 1:
+            preamble += "let global = Root::downcast::<dom::types::%s>(global).unwrap();\n" % list(self.exposureSet)[0]
+        return CGList([CGGeneric(preamble), self.generate_code()])
 
     def generate_code(self):
         raise NotImplementedError  # Override me!
diff --git a/components/script/dom/bluetoothuuid.rs b/components/script/dom/bluetoothuuid.rs
index 11fb7af94cbf..fbf49142aa32 100644
--- a/components/script/dom/bluetoothuuid.rs
+++ b/components/script/dom/bluetoothuuid.rs
@@ -7,7 +7,7 @@ use dom::bindings::error::Error::Syntax;
 use dom::bindings::error::Fallible;
 use dom::bindings::reflector::Reflector;
 use dom::bindings::str::DOMString;
-use dom::globalscope::GlobalScope;
+use dom::window::Window;
 use regex::Regex;
 
 pub type UUID = DOMString;
@@ -271,22 +271,22 @@ const VALID_UUID_REGEX: &'static str = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-
 
 impl BluetoothUUID {
     // https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-canonicaluuid
-    pub fn CanonicalUUID(_: &GlobalScope, alias: u32) -> UUID {
+    pub fn CanonicalUUID(_: &Window, alias: u32) -> UUID {
         canonical_uuid(alias)
     }
 
     // https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getservice
-    pub fn GetService(_: &GlobalScope, name: BluetoothServiceUUID) -> Fallible<UUID> {
+    pub fn GetService(_: &Window, name: BluetoothServiceUUID) -> Fallible<UUID> {
         Self::service(name)
     }
 
     // https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getcharacteristic
-    pub fn GetCharacteristic(_: &GlobalScope, name: BluetoothCharacteristicUUID) -> Fallible<UUID> {
+    pub fn GetCharacteristic(_: &Window, name: BluetoothCharacteristicUUID) -> Fallible<UUID> {
         Self::characteristic(name)
     }
 
     // https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getdescriptor
-    pub fn GetDescriptor(_: &GlobalScope, name: BluetoothDescriptorUUID) -> Fallible<UUID> {
+    pub fn GetDescriptor(_: &Window, name: BluetoothDescriptorUUID) -> Fallible<UUID> {
         Self::descriptor(name)
     }
 }
diff --git a/components/script/dom/css.rs b/components/script/dom/css.rs
index f2256007aeb2..2e04aed50bc3 100644
--- a/components/script/dom/css.rs
+++ b/components/script/dom/css.rs
@@ -6,7 +6,7 @@ use cssparser::serialize_identifier;
 use dom::bindings::error::Fallible;
 use dom::bindings::reflector::Reflector;
 use dom::bindings::str::DOMString;
-use dom::globalscope::GlobalScope;
+use dom::window::Window;
 
 #[dom_struct]
 pub struct CSS {
@@ -15,7 +15,7 @@ pub struct CSS {
 
 impl CSS {
     // http://dev.w3.org/csswg/cssom/#serialize-an-identifier
-    pub fn Escape(_: &GlobalScope, ident: DOMString) -> Fallible<DOMString> {
+    pub fn Escape(_: &Window, ident: DOMString) -> Fallible<DOMString> {
         let mut escaped = String::new();
         serialize_identifier(&ident, &mut escaped).unwrap();
         Ok(DOMString::from(escaped))