Improve performance of testing for visited links CSS selector matching by reducing string conversion and by caching the state of the link on the link element. r=waterson b=25963
git-svn-id: svn://10.0.0.236/trunk@74959 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
dbaron%fas.harvard.edu
@@ -1,4 +1,5 @@
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nsIForm.h
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nsIFormControl.h
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nsILink.h
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nsISelectElement.h
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@@ -31,6 +31,7 @@ MODULE = layout
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EXPORTS = \
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nsIFormControl.h \
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nsIForm.h \
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nsILink.h \
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nsISelectElement.h \
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$(NULL)
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@@ -21,7 +21,7 @@
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DEPTH=..\..\..\..
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EXPORTS=nsIFormControl.h nsIForm.h nsISelectElement.h
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EXPORTS=nsIFormControl.h nsIForm.h nsILink.h nsISelectElement.h
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MODULE=raptor
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78
mozilla/content/html/content/public/nsILink.h
Normal file
78
mozilla/content/html/content/public/nsILink.h
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@@ -0,0 +1,78 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@fas.harvard.edu>
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*/
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#ifndef nsILink_h___
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#define nsILink_h___
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#include "nsISupports.h"
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#include "nsILinkHandler.h" // definition of nsLinkState
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// IID for the nsILink interface
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#define NS_ILINK_IID \
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{ 0xa904ac22, 0x28fa, 0x4812, \
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{ 0xbe, 0xf3, 0x2, 0x2f, 0xf3, 0x3b, 0x8e, 0xf5 } }
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/**
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* This interface allows SelectorMatches to get the canonical
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* URL pointed to by an element representing a link and allows
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* it to store the visited state of a link element in the link.
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* It is needed for performance reasons (to prevent copying of
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* strings and excessive calls to history).
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*/
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class nsILink : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ILINK_IID)
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/**
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* Get the cached state of the link. If the state is unknown,
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* return eLinkState_Unknown.
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*
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* @param aState [out] The cached link state of the link.
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* @return NS_OK
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*/
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NS_IMETHOD GetLinkState(nsLinkState &aState) = 0;
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/**
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* Set the cached state of the link.
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*
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* @param aState The cached link state of the link.
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* @return NS_OK
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*/
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NS_IMETHOD SetLinkState(nsLinkState aState) = 0;
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/**
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* Get a pointer to the canonical URL (i.e., fully resolved to the
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* base URL) that this linkable element points to. The buffer
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* returned has been allocated for and should be deleted by the
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* caller.
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*
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* @param aBuf [out] A pointer to be filled in with a pointer to a
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* null-terminated string containing the canonical URL.
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* If the element has no HREF attribute, it is set to
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* nsnull.
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* @return NS_OK if the out pointer is filled in
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*/
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NS_IMETHOD GetHrefCString(char* &aBuf) = 0;
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};
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#endif /* nsILink_h___ */
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@@ -1,4 +1,5 @@
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nsIForm.h
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nsIFormControl.h
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nsILink.h
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nsISelectElement.h
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@@ -31,6 +31,7 @@ MODULE = layout
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EXPORTS = \
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nsIFormControl.h \
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nsIForm.h \
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nsILink.h \
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nsISelectElement.h \
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$(NULL)
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@@ -21,7 +21,7 @@
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DEPTH=..\..\..\..
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EXPORTS=nsIFormControl.h nsIForm.h nsISelectElement.h
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EXPORTS=nsIFormControl.h nsIForm.h nsILink.h nsISelectElement.h
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MODULE=raptor
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78
mozilla/layout/html/content/public/nsILink.h
Normal file
78
mozilla/layout/html/content/public/nsILink.h
Normal file
@@ -0,0 +1,78 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@fas.harvard.edu>
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*/
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#ifndef nsILink_h___
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#define nsILink_h___
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#include "nsISupports.h"
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#include "nsILinkHandler.h" // definition of nsLinkState
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// IID for the nsILink interface
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#define NS_ILINK_IID \
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{ 0xa904ac22, 0x28fa, 0x4812, \
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{ 0xbe, 0xf3, 0x2, 0x2f, 0xf3, 0x3b, 0x8e, 0xf5 } }
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/**
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* This interface allows SelectorMatches to get the canonical
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* URL pointed to by an element representing a link and allows
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* it to store the visited state of a link element in the link.
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* It is needed for performance reasons (to prevent copying of
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* strings and excessive calls to history).
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*/
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class nsILink : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ILINK_IID)
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/**
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* Get the cached state of the link. If the state is unknown,
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* return eLinkState_Unknown.
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*
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* @param aState [out] The cached link state of the link.
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* @return NS_OK
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*/
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NS_IMETHOD GetLinkState(nsLinkState &aState) = 0;
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/**
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* Set the cached state of the link.
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*
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* @param aState The cached link state of the link.
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* @return NS_OK
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*/
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NS_IMETHOD SetLinkState(nsLinkState aState) = 0;
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/**
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* Get a pointer to the canonical URL (i.e., fully resolved to the
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* base URL) that this linkable element points to. The buffer
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* returned has been allocated for and should be deleted by the
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* caller.
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*
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* @param aBuf [out] A pointer to be filled in with a pointer to a
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* null-terminated string containing the canonical URL.
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* If the element has no HREF attribute, it is set to
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* nsnull.
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* @return NS_OK if the out pointer is filled in
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*/
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NS_IMETHOD GetHrefCString(char* &aBuf) = 0;
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};
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#endif /* nsILink_h___ */
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