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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/.
*
*
* This Original Code has been modified by IBM Corporation.
* Modifications made by IBM described herein are
* Copyright (c) International Business Machines
* Corporation, 2000
*
* Modifications to Mozilla code or documentation
* identified per MPL Section 3.3
*
* Date Modified by Description of modification
* 03/27/2000 IBM Corp. Added PR_CALLBACK for Optlink
* use in OS2
*/
#ifndef nsScriptNameSpaceManager_h__
#define nsScriptNameSpaceManager_h__
#include "mozilla/MemoryReporting.h"
#include "nsBaseHashtable.h"
#include "nsIMemoryReporter.h"
#include "nsIScriptNameSpaceManager.h"
#include "nsString.h"
#include "nsID.h"
#include "PLDHashTable.h"
#include "nsDOMClassInfo.h"
#include "nsIObserver.h"
#include "nsWeakReference.h"
#include "xpcpublic.h"
struct nsGlobalNameStruct
{
enum nametype {
eTypeNotInitialized,
eTypeProperty,
eTypeExternalConstructor,
eTypeClassConstructor,
eTypeClassProto,
} mType;
bool mChromeOnly : 1;
bool mAllowXBL : 1;
union {
int32_t mDOMClassInfoID; // eTypeClassConstructor
nsIID mIID; // eTypeClassProto
nsCID mCID; // All other types
};
};
class GlobalNameMapEntry : public PLDHashEntryHdr
{
public:
// Our hash table ops don't care about the order of these members.
nsString mKey;
nsGlobalNameStruct mGlobalName;
size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
// Measurement of the following members may be added later if DMD finds it
// is worthwhile:
// - mGlobalName
return mKey.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
}
};
class nsICategoryManager;
class nsScriptNameSpaceManager : public nsIObserver,
public nsSupportsWeakReference,
public nsIMemoryReporter
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSIMEMORYREPORTER
nsScriptNameSpaceManager();
nsresult Init();
// Returns a nsGlobalNameStruct for aName, or null if one is not
// found. The returned nsGlobalNameStruct is only guaranteed to be
// valid until the next call to any of the methods in this class.
// It also returns a pointer to the string buffer of the classname
// in the nsGlobalNameStruct.
const nsGlobalNameStruct* LookupName(const nsAString& aName,
const char16_t **aClassName = nullptr);
nsresult RegisterClassName(const char *aClassName,
int32_t aDOMClassInfoID,
bool aPrivileged,
bool aXBLAllowed,
const char16_t **aResult);
nsresult RegisterClassProto(const char *aClassName,
const nsIID *aConstructorProtoIID,
bool *aFoundOld);
class NameIterator : public PLDHashTable::Iterator
{
public:
typedef PLDHashTable::Iterator Base;
explicit NameIterator(PLDHashTable* aTable) : Base(aTable) {}
NameIterator(NameIterator&& aOther) : Base(mozilla::Move(aOther.mTable)) {}
const GlobalNameMapEntry* Get() const
{
return static_cast<const GlobalNameMapEntry*>(Base::Get());
}
private:
NameIterator() = delete;
NameIterator(const NameIterator&) = delete;
NameIterator& operator=(const NameIterator&) = delete;
NameIterator& operator=(const NameIterator&&) = delete;
};
NameIterator GlobalNameIter() { return NameIterator(&mGlobalNames); }
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
private:
virtual ~nsScriptNameSpaceManager();
// Adds a new entry to the hash and returns the nsGlobalNameStruct
// that aKey will be mapped to. If mType in the returned
// nsGlobalNameStruct is != eTypeNotInitialized, an entry for aKey
// already existed.
nsGlobalNameStruct *AddToHash(const char *aKey,
const char16_t **aClassName = nullptr);
// Removes an existing entry from the hash.
void RemoveFromHash(const nsAString *aKey);
nsresult FillHash(nsICategoryManager *aCategoryManager,
const char *aCategory);
/**
* Add a new category entry into the hash table.
* Only some categories can be added (see the beginning of the definition).
* The other ones will be ignored.
*
* @aCategoryManager Instance of the category manager service.
* @aCategory Category where the entry comes from.
* @aEntry The entry that should be added.
*/
nsresult AddCategoryEntryToHash(nsICategoryManager* aCategoryManager,
const char* aCategory,
nsISupports* aEntry);
/**
* Remove an existing category entry from the hash table.
* Only some categories can be removed (see the beginning of the definition).
* The other ones will be ignored.
*
* @aCategory Category where the entry will be removed from.
* @aEntry The entry that should be removed.
*/
nsresult RemoveCategoryEntryFromHash(nsICategoryManager* aCategoryManager,
const char* aCategory,
nsISupports* aEntry);
// common helper for AddCategoryEntryToHash and RemoveCategoryEntryFromHash
nsresult OperateCategoryEntryHash(nsICategoryManager* aCategoryManager,
const char* aCategory,
nsISupports* aEntry,
bool aRemove);
PLDHashTable mGlobalNames;
};
#endif /* nsScriptNameSpaceManager_h__ */
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