1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #include "mozilla/dom/StyleSheetList.h"
8 
9 #include "mozilla/dom/StyleSheetListBinding.h"
10 #include "nsINode.h"
11 
12 namespace mozilla::dom {
13 
14 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(StyleSheetList)
15 
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StyleSheetList)16 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StyleSheetList)
17   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
18   NS_INTERFACE_MAP_ENTRY(nsIMutationObserver)
19   NS_INTERFACE_MAP_ENTRY(nsISupports)
20 NS_INTERFACE_MAP_END
21 
22 NS_IMPL_CYCLE_COLLECTING_ADDREF(StyleSheetList)
23 NS_IMPL_CYCLE_COLLECTING_RELEASE(StyleSheetList)
24 
25 /* virtual */
26 JSObject* StyleSheetList::WrapObject(JSContext* aCx,
27                                      JS::Handle<JSObject*> aGivenProto) {
28   return StyleSheetList_Binding::Wrap(aCx, this, aGivenProto);
29 }
30 
NodeWillBeDestroyed(const nsINode * aNode)31 void StyleSheetList::NodeWillBeDestroyed(const nsINode* aNode) {
32   mDocumentOrShadowRoot = nullptr;
33 }
34 
StyleSheetList(DocumentOrShadowRoot & aScope)35 StyleSheetList::StyleSheetList(DocumentOrShadowRoot& aScope)
36     : mDocumentOrShadowRoot(&aScope) {
37   mDocumentOrShadowRoot->AsNode().AddMutationObserver(this);
38 }
39 
~StyleSheetList()40 StyleSheetList::~StyleSheetList() {
41   if (mDocumentOrShadowRoot) {
42     mDocumentOrShadowRoot->AsNode().RemoveMutationObserver(this);
43   }
44 }
45 
46 }  // namespace mozilla::dom
47