mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-09 14:28:25 +00:00
d225f7151b
(Path is actually r=froydnj.) Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of nsISupports. This means that nsAtom is now a better name for it than nsIAtom. MozReview-Commit-ID: 91U22X2NydP --HG-- rename : xpcom/ds/nsIAtom.h => xpcom/ds/nsAtom.h extra : rebase_source : ac3e904a21b8b48e74534fff964f1623ee937c67
84 lines
2.8 KiB
C++
84 lines
2.8 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 "nsAtom.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIObserver.h"
|
|
#include "nsStringFwd.h"
|
|
#include "nsTArray.h"
|
|
|
|
#include "mozilla/StaticPtr.h"
|
|
|
|
/**
|
|
* 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 nsIObserver
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
virtual nsresult RegisterNameSpace(const nsAString& aURI,
|
|
int32_t& aNameSpaceID);
|
|
|
|
virtual nsresult GetNameSpaceURI(int32_t aNameSpaceID, nsAString& aURI);
|
|
|
|
// Returns the atom for the namespace URI associated with the given ID. The
|
|
// ID must be within range and not be kNameSpaceID_None (i.e. zero);
|
|
nsAtom* NameSpaceURIAtom(int32_t aNameSpaceID) {
|
|
MOZ_ASSERT(aNameSpaceID > 0);
|
|
return NameSpaceURIAtomForServo(aNameSpaceID);
|
|
}
|
|
|
|
// NB: This function should only be called by Servo code (and the above
|
|
// accessor), which uses the empty atom to represent kNameSpaceID_None.
|
|
nsAtom* NameSpaceURIAtomForServo(int32_t aNameSpaceID) {
|
|
MOZ_ASSERT(aNameSpaceID >= 0);
|
|
MOZ_ASSERT((int64_t) aNameSpaceID < (int64_t) mURIArray.Length());
|
|
return mURIArray.ElementAt(aNameSpaceID);
|
|
}
|
|
|
|
int32_t GetNameSpaceID(const nsAString& aURI,
|
|
bool aInChromeDoc);
|
|
int32_t GetNameSpaceID(nsAtom* aURI,
|
|
bool aInChromeDoc);
|
|
|
|
bool HasElementCreator(int32_t aNameSpaceID);
|
|
|
|
static nsNameSpaceManager* GetInstance();
|
|
bool mMathMLDisabled;
|
|
bool mSVGDisabled;
|
|
|
|
private:
|
|
bool Init();
|
|
nsresult AddNameSpace(already_AddRefed<nsAtom> aURI, const int32_t aNameSpaceID);
|
|
nsresult AddDisabledNameSpace(already_AddRefed<nsAtom> aURI, const int32_t aNameSpaceID);
|
|
~nsNameSpaceManager() {};
|
|
|
|
nsDataHashtable<nsRefPtrHashKey<nsAtom>, int32_t> mURIToIDTable;
|
|
nsDataHashtable<nsRefPtrHashKey<nsAtom>, int32_t> mDisabledURIToIDTable;
|
|
nsTArray<RefPtr<nsAtom>> mURIArray;
|
|
|
|
static mozilla::StaticRefPtr<nsNameSpaceManager> sInstance;
|
|
};
|
|
|
|
#endif // nsNameSpaceManager_h___
|