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73bafcec5e
MozReview-Commit-ID: 8HdaBppsJsc --HG-- extra : rebase_source : 617c17b1162265e44810597fa69d533316da1a6b
164 lines
5.4 KiB
C++
164 lines
5.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsScriptNameSpaceManager_h__
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#define nsScriptNameSpaceManager_h__
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#include "mozilla/MemoryReporting.h"
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#include "nsBaseHashtable.h"
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#include "nsIMemoryReporter.h"
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#include "nsIScriptNameSpaceManager.h"
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#include "nsString.h"
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#include "nsID.h"
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#include "PLDHashTable.h"
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#include "nsDOMClassInfo.h"
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#include "nsIObserver.h"
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#include "nsWeakReference.h"
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#include "xpcpublic.h"
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struct nsGlobalNameStruct
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{
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enum nametype {
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eTypeNotInitialized,
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eTypeProperty,
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eTypeExternalConstructor,
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eTypeClassConstructor,
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eTypeClassProto,
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} mType;
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bool mChromeOnly : 1;
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bool mAllowXBL : 1;
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union {
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int32_t mDOMClassInfoID; // eTypeClassConstructor
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nsIID mIID; // eTypeClassProto
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nsCID mCID; // All other types
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};
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};
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class GlobalNameMapEntry : public PLDHashEntryHdr
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{
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public:
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// Our hash table ops don't care about the order of these members.
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nsString mKey;
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nsGlobalNameStruct mGlobalName;
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
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// Measurement of the following members may be added later if DMD finds it
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// is worthwhile:
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// - mGlobalName
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return mKey.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
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}
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};
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class nsICategoryManager;
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class nsScriptNameSpaceManager : public nsIObserver,
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public nsSupportsWeakReference,
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public nsIMemoryReporter
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIMEMORYREPORTER
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nsScriptNameSpaceManager();
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nsresult Init();
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// Returns a nsGlobalNameStruct for aName, or null if one is not
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// found. The returned nsGlobalNameStruct is only guaranteed to be
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// valid until the next call to any of the methods in this class.
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// It also returns a pointer to the string buffer of the classname
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// in the nsGlobalNameStruct.
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const nsGlobalNameStruct* LookupName(const nsAString& aName,
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const char16_t **aClassName = nullptr);
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nsresult RegisterClassName(const char *aClassName,
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int32_t aDOMClassInfoID,
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bool aPrivileged,
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bool aXBLAllowed,
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const char16_t **aResult);
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nsresult RegisterClassProto(const char *aClassName,
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const nsIID *aConstructorProtoIID,
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bool *aFoundOld);
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class NameIterator : public PLDHashTable::Iterator
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{
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public:
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typedef PLDHashTable::Iterator Base;
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explicit NameIterator(PLDHashTable* aTable) : Base(aTable) {}
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NameIterator(NameIterator&& aOther) : Base(mozilla::Move(aOther.mTable)) {}
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const GlobalNameMapEntry* Get() const
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{
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return static_cast<const GlobalNameMapEntry*>(Base::Get());
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}
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private:
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NameIterator() = delete;
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NameIterator(const NameIterator&) = delete;
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NameIterator& operator=(const NameIterator&) = delete;
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NameIterator& operator=(const NameIterator&&) = delete;
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};
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NameIterator GlobalNameIter() { return NameIterator(&mGlobalNames); }
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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virtual ~nsScriptNameSpaceManager();
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// Adds a new entry to the hash and returns the nsGlobalNameStruct
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// that aKey will be mapped to. If mType in the returned
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// nsGlobalNameStruct is != eTypeNotInitialized, an entry for aKey
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// already existed.
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nsGlobalNameStruct *AddToHash(const char *aKey,
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const char16_t **aClassName = nullptr);
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// Removes an existing entry from the hash.
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void RemoveFromHash(const nsAString *aKey);
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nsresult FillHash(nsICategoryManager *aCategoryManager,
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const char *aCategory);
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/**
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* Add a new category entry into the hash table.
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* Only some categories can be added (see the beginning of the definition).
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* The other ones will be ignored.
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*
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* @aCategoryManager Instance of the category manager service.
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* @aCategory Category where the entry comes from.
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* @aEntry The entry that should be added.
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*/
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nsresult AddCategoryEntryToHash(nsICategoryManager* aCategoryManager,
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const char* aCategory,
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nsISupports* aEntry);
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/**
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* Remove an existing category entry from the hash table.
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* Only some categories can be removed (see the beginning of the definition).
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* The other ones will be ignored.
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*
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* @aCategory Category where the entry will be removed from.
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* @aEntry The entry that should be removed.
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*/
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nsresult RemoveCategoryEntryFromHash(nsICategoryManager* aCategoryManager,
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const char* aCategory,
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nsISupports* aEntry);
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// common helper for AddCategoryEntryToHash and RemoveCategoryEntryFromHash
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nsresult OperateCategoryEntryHash(nsICategoryManager* aCategoryManager,
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const char* aCategory,
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nsISupports* aEntry,
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bool aRemove);
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PLDHashTable mGlobalNames;
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};
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#endif /* nsScriptNameSpaceManager_h__ */
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