mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 16:46:26 +00:00
64 lines
1.9 KiB
C++
64 lines
1.9 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 nsNameSpaceManager_h___
|
|
#define nsNameSpaceManager_h___
|
|
|
|
#include "nsDataHashtable.h"
|
|
#include "nsHashKeys.h"
|
|
#include "nsIAtom.h"
|
|
#include "nsTArray.h"
|
|
|
|
#include "mozilla/StaticPtr.h"
|
|
|
|
class nsAString;
|
|
|
|
/**
|
|
* The Name Space Manager tracks the association between a NameSpace
|
|
* URI and the int32_t runtime id. Mappings between NameSpaces and
|
|
* NameSpace prefixes are managed by nsINameSpaces.
|
|
*
|
|
* All NameSpace URIs are stored in a global table so that IDs are
|
|
* consistent accross the app. NameSpace IDs are only consistent at runtime
|
|
* ie: they are not guaranteed to be consistent accross app sessions.
|
|
*
|
|
* The nsNameSpaceManager needs to have a live reference for as long as
|
|
* the NameSpace IDs are needed.
|
|
*
|
|
*/
|
|
|
|
class nsNameSpaceManager final
|
|
{
|
|
public:
|
|
~nsNameSpaceManager() {}
|
|
|
|
nsresult RegisterNameSpace(const nsAString& aURI, int32_t& aNameSpaceID);
|
|
|
|
nsresult GetNameSpaceURI(int32_t aNameSpaceID, nsAString& aURI);
|
|
|
|
nsIAtom* NameSpaceURIAtom(int32_t aNameSpaceID) {
|
|
MOZ_ASSERT(aNameSpaceID > 0 && (int64_t) aNameSpaceID <= (int64_t) mURIArray.Length());
|
|
return mURIArray.ElementAt(aNameSpaceID - 1); // id is index + 1
|
|
}
|
|
|
|
int32_t GetNameSpaceID(const nsAString& aURI);
|
|
int32_t GetNameSpaceID(nsIAtom* aURI);
|
|
|
|
bool HasElementCreator(int32_t aNameSpaceID);
|
|
|
|
static nsNameSpaceManager* GetInstance();
|
|
private:
|
|
bool Init();
|
|
nsresult AddNameSpace(already_AddRefed<nsIAtom> aURI, const int32_t aNameSpaceID);
|
|
|
|
nsDataHashtable<nsISupportsHashKey, int32_t> mURIToIDTable;
|
|
nsTArray<nsCOMPtr<nsIAtom>> mURIArray;
|
|
|
|
static mozilla::StaticAutoPtr<nsNameSpaceManager> sInstance;
|
|
};
|
|
|
|
#endif // nsNameSpaceManager_h___
|