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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* 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/. */
#ifndef mozilla_dom_StyleSheetList_h
#define mozilla_dom_StyleSheetList_h
#include "mozilla/dom/StyleScope.h"
#include "nsIDOMStyleSheetList.h"
#include "nsWrapperCache.h"
#include "nsStubDocumentObserver.h"
class nsINode;
namespace mozilla {
class StyleSheet;
namespace dom {
class StyleSheetList final : public nsIDOMStyleSheetList
, public nsWrapperCache
, public nsStubDocumentObserver
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(StyleSheetList, nsIDOMStyleSheetList)
NS_DECL_NSIDOMSTYLESHEETLIST
NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
explicit StyleSheetList(StyleScope& aScope);
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override final;
nsINode* GetParentObject() const
{
return mStyleScope ? &mStyleScope->AsNode() : nullptr;
}
uint32_t Length() const
{
return mStyleScope ? mStyleScope->SheetCount() : 0;
}
StyleSheet* IndexedGetter(uint32_t aIndex, bool& aFound) const
{
if (!mStyleScope) {
aFound = false;
return nullptr;
}
StyleSheet* sheet = mStyleScope->SheetAt(aIndex);
aFound = !!sheet;
return sheet;
}
StyleSheet* Item(uint32_t aIndex) const
{
bool dummy = false;
return IndexedGetter(aIndex, dummy);
}
protected:
virtual ~StyleSheetList();
StyleScope* mStyleScope; // Weak, cleared on "NodeWillBeDestroyed".
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_StyleSheetList_h
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