gecko-dev/dom/html/HTMLAllCollection.h

92 строки
2.5 KiB
C++

/* -*- 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_HTMLAllCollection_h
#define mozilla_dom_HTMLAllCollection_h
#include "nsCycleCollectionParticipant.h"
#include "nsISupportsImpl.h"
#include "nsRefPtrHashtable.h"
#include "nsWrapperCache.h"
#include <stdint.h>
class nsContentList;
class nsHTMLDocument;
class nsINode;
namespace mozilla {
namespace dom {
class Element;
class OwningHTMLCollectionOrElement;
template <typename>
struct Nullable;
template <typename>
class Optional;
class HTMLAllCollection final : public nsISupports, public nsWrapperCache {
~HTMLAllCollection();
public:
explicit HTMLAllCollection(nsHTMLDocument* aDocument);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(HTMLAllCollection)
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
nsINode* GetParentObject() const;
uint32_t Length();
Element* IndexedGetter(uint32_t aIndex, bool& aFound) {
Element* result = Item(aIndex);
aFound = !!result;
return result;
}
void NamedItem(const nsAString& aName,
Nullable<OwningHTMLCollectionOrElement>& aResult) {
bool found = false;
NamedGetter(aName, found, aResult);
}
void NamedGetter(const nsAString& aName, bool& aFound,
Nullable<OwningHTMLCollectionOrElement>& aResult);
void GetSupportedNames(nsTArray<nsString>& aNames);
void Item(const Optional<nsAString>& aNameOrIndex,
Nullable<OwningHTMLCollectionOrElement>& aResult);
void LegacyCall(JS::Handle<JS::Value>,
const Optional<nsAString>& aNameOrIndex,
Nullable<OwningHTMLCollectionOrElement>& aResult) {
Item(aNameOrIndex, aResult);
}
private:
nsContentList* Collection();
/**
* Returns the HTMLCollection for document.all[aID], or null if there isn't
* one.
*/
nsContentList* GetDocumentAllList(const nsAString& aID);
/**
* Helper for indexed getter and spec Item() method.
*/
Element* Item(uint32_t aIndex);
RefPtr<nsHTMLDocument> mDocument;
RefPtr<nsContentList> mCollection;
nsRefPtrHashtable<nsStringHashKey, nsContentList> mNamedMap;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_HTMLAllCollection_h