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content/base/src/nsNodeInfoManager.h@6474c204b198 (annotated)

content/base/src/nsNodeInfoManager.h

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/*
michael@0	7	* A class for handing out nodeinfos and ensuring sharing of them as needed.
michael@0	8	*/
michael@0	9
michael@0	10	#ifndef nsNodeInfoManager_h___
michael@0	11	#define nsNodeInfoManager_h___
michael@0	12
michael@0	13	#include "mozilla/Attributes.h" // for MOZ_FINAL
michael@0	14	#include "nsCOMPtr.h" // for member
michael@0	15	#include "nsAutoPtr.h" // for nsRefPtr
michael@0	16	#include "nsCycleCollectionParticipant.h" // for NS_DECL_CYCLE_*
michael@0	17	#include "plhash.h" // for typedef PLHashNumber
michael@0	18
michael@0	19	class nsAString;
michael@0	20	class nsBindingManager;
michael@0	21	class nsIAtom;
michael@0	22	class nsIDocument;
michael@0	23	class nsIDOMDocumentType;
michael@0	24	class nsINodeInfo;
michael@0	25	class nsIPrincipal;
michael@0	26	class nsNodeInfo;
michael@0	27	struct PLHashEntry;
michael@0	28	struct PLHashTable;
michael@0	29	template<class T> struct already_AddRefed;
michael@0	30
michael@0	31	class nsNodeInfoManager MOZ_FINAL
michael@0	32	{
michael@0	33	public:
michael@0	34	nsNodeInfoManager();
michael@0	35	~nsNodeInfoManager();
michael@0	36
michael@0	37	NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsNodeInfoManager)
michael@0	38
michael@0	39	NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(nsNodeInfoManager)
michael@0	40
michael@0	41	/**
michael@0	42	* Initialize the nodeinfo manager with a document.
michael@0	43	*/
michael@0	44	nsresult Init(nsIDocument *aDocument);
michael@0	45
michael@0	46	/**
michael@0	47	* Release the reference to the document, this will be called when
michael@0	48	* the document is going away.
michael@0	49	*/
michael@0	50	void DropDocumentReference();
michael@0	51
michael@0	52	/**
michael@0	53	* Methods for creating nodeinfo's from atoms and/or strings.
michael@0	54	*/
michael@0	55	already_AddRefed<nsINodeInfo> GetNodeInfo(nsIAtom *aName, nsIAtom *aPrefix,
michael@0	56	int32_t aNamespaceID,
michael@0	57	uint16_t aNodeType,
michael@0	58	nsIAtom* aExtraName = nullptr);
michael@0	59	nsresult GetNodeInfo(const nsAString& aName, nsIAtom *aPrefix,
michael@0	60	int32_t aNamespaceID, uint16_t aNodeType,
michael@0	61	nsINodeInfo** aNodeInfo);
michael@0	62	nsresult GetNodeInfo(const nsAString& aName, nsIAtom *aPrefix,
michael@0	63	const nsAString& aNamespaceURI, uint16_t aNodeType,
michael@0	64	nsINodeInfo** aNodeInfo);
michael@0	65
michael@0	66	/**
michael@0	67	* Returns the nodeinfo for text nodes. Can return null if OOM.
michael@0	68	*/
michael@0	69	already_AddRefed<nsINodeInfo> GetTextNodeInfo();
michael@0	70
michael@0	71	/**
michael@0	72	* Returns the nodeinfo for comment nodes. Can return null if OOM.
michael@0	73	*/
michael@0	74	already_AddRefed<nsINodeInfo> GetCommentNodeInfo();
michael@0	75
michael@0	76	/**
michael@0	77	* Returns the nodeinfo for the document node. Can return null if OOM.
michael@0	78	*/
michael@0	79	already_AddRefed<nsINodeInfo> GetDocumentNodeInfo();
michael@0	80
michael@0	81	/**
michael@0	82	* Retrieve a pointer to the document that owns this node info
michael@0	83	* manager.
michael@0	84	*/
michael@0	85	nsIDocument* GetDocument() const
michael@0	86	{
michael@0	87	return mDocument;
michael@0	88	}
michael@0	89
michael@0	90	/**
michael@0	91	* Gets the principal of the document this nodeinfo manager belongs to.
michael@0	92	*/
michael@0	93	nsIPrincipal *DocumentPrincipal() const {
michael@0	94	NS_ASSERTION(mPrincipal, "How'd that happen?");
michael@0	95	return mPrincipal;
michael@0	96	}
michael@0	97
michael@0	98	void RemoveNodeInfo(nsNodeInfo *aNodeInfo);
michael@0	99
michael@0	100	nsBindingManager* GetBindingManager() const
michael@0	101	{
michael@0	102	return mBindingManager;
michael@0	103	}
michael@0	104
michael@0	105	protected:
michael@0	106	friend class nsDocument;
michael@0	107	friend class nsXULPrototypeDocument;
michael@0	108	friend nsresult NS_NewDOMDocumentType(nsIDOMDocumentType** ,
michael@0	109	nsNodeInfoManager *,
michael@0	110	nsIAtom *,
michael@0	111	const nsAString& ,
michael@0	112	const nsAString& ,
michael@0	113	const nsAString& );
michael@0	114
michael@0	115	/**
michael@0	116	* Sets the principal of the document this nodeinfo manager belongs to.
michael@0	117	*/
michael@0	118	void SetDocumentPrincipal(nsIPrincipal *aPrincipal);
michael@0	119
michael@0	120	private:
michael@0	121	static int NodeInfoInnerKeyCompare(const void *key1, const void *key2);
michael@0	122	static PLHashNumber GetNodeInfoInnerHashValue(const void *key);
michael@0	123	static int DropNodeInfoDocument(PLHashEntry *he, int hashIndex,
michael@0	124	void *arg);
michael@0	125
michael@0	126	PLHashTable *mNodeInfoHash;
michael@0	127	nsIDocument *mDocument; // WEAK
michael@0	128	uint32_t mNonDocumentNodeInfos;
michael@0	129	nsCOMPtr<nsIPrincipal> mPrincipal; // Never null after Init() succeeds.
michael@0	130	nsCOMPtr<nsIPrincipal> mDefaultPrincipal; // Never null after Init() succeeds
michael@0	131	nsINodeInfo *mTextNodeInfo; // WEAK to avoid circular ownership
michael@0	132	nsINodeInfo *mCommentNodeInfo; // WEAK to avoid circular ownership
michael@0	133	nsINodeInfo *mDocumentNodeInfo; // WEAK to avoid circular ownership
michael@0	134	nsRefPtr<nsBindingManager> mBindingManager;
michael@0	135	};
michael@0	136
michael@0	137	#endif /* nsNodeInfoManager_h___ */