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 {
13 namespace dom {
14 
15 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(StyleSheetList)
16 
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StyleSheetList)17 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StyleSheetList)
18   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
19   NS_INTERFACE_MAP_ENTRY(nsIMutationObserver)
20   NS_INTERFACE_MAP_ENTRY(nsISupports)
21 NS_INTERFACE_MAP_END
22 
23 NS_IMPL_CYCLE_COLLECTING_ADDREF(StyleSheetList)
24 NS_IMPL_CYCLE_COLLECTING_RELEASE(StyleSheetList)
25 
26 /* virtual */
27 JSObject* StyleSheetList::WrapObject(JSContext* aCx,
28                                      JS::Handle<JSObject*> aGivenProto) {
29   return StyleSheetList_Binding::Wrap(aCx, this, aGivenProto);
30 }
31 
NodeWillBeDestroyed(const nsINode * aNode)32 void StyleSheetList::NodeWillBeDestroyed(const nsINode* aNode) {
33   mDocumentOrShadowRoot = nullptr;
34 }
35 
StyleSheetList(DocumentOrShadowRoot & aScope)36 StyleSheetList::StyleSheetList(DocumentOrShadowRoot& aScope)
37     : mDocumentOrShadowRoot(&aScope) {
38   mDocumentOrShadowRoot->AsNode().AddMutationObserver(this);
39 }
40 
~StyleSheetList()41 StyleSheetList::~StyleSheetList() {
42   if (mDocumentOrShadowRoot) {
43     mDocumentOrShadowRoot->AsNode().RemoveMutationObserver(this);
44   }
45 }
46 
47 }  // namespace dom
48 }  // namespace mozilla
49