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116 lines
4.4 KiB
C++
116 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is atom lists for CSS pseudos.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@dbaron.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* atom list for CSS pseudo-elements */
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#include "nsCSSPseudoElements.h"
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#include "nsAtomListUtils.h"
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#include "nsStaticAtom.h"
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#include "nsMemory.h"
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#include "nsCSSAnonBoxes.h"
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// define storage for all atoms
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#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
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nsICSSPseudoElement* nsCSSPseudoElements::name_;
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#include "nsCSSPseudoElementList.h"
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#undef CSS_PSEUDO_ELEMENT
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static const nsStaticAtom CSSPseudoElements_info[] = {
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#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
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{ value_, (nsIAtom**)&nsCSSPseudoElements::name_ },
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#include "nsCSSPseudoElementList.h"
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#undef CSS_PSEUDO_ELEMENT
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};
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// Separate from the array above so that we can have an array of
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// nsStaticAtom (to pass to NS_RegisterStaticAtoms and
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// nsAtomListUtils::IsMember), but with corresponding indices (so the
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// i-th element of this array is the flags for the i-th pseudo-element
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// in the previous array).
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static const PRUint32 CSSPseudoElements_flags[] = {
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#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
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flags_,
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#include "nsCSSPseudoElementList.h"
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#undef CSS_PSEUDO_ELEMENT
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};
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void nsCSSPseudoElements::AddRefAtoms()
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{
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NS_RegisterStaticAtoms(CSSPseudoElements_info,
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NS_ARRAY_LENGTH(CSSPseudoElements_info));
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}
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PRBool nsCSSPseudoElements::IsPseudoElement(nsIAtom *aAtom)
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{
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return nsAtomListUtils::IsMember(aAtom, CSSPseudoElements_info,
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NS_ARRAY_LENGTH(CSSPseudoElements_info));
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}
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/* static */ PRBool
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nsCSSPseudoElements::IsCSS2PseudoElement(nsIAtom *aAtom)
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{
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// We don't implement this using PseudoElementHasFlags because callers
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// want to pass things that could be anon boxes.
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NS_ASSERTION(nsCSSPseudoElements::IsPseudoElement(aAtom) ||
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nsCSSAnonBoxes::IsAnonBox(aAtom),
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"must be pseudo element or anon box");
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PRBool result = aAtom == nsCSSPseudoElements::after ||
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aAtom == nsCSSPseudoElements::before ||
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aAtom == nsCSSPseudoElements::firstLetter ||
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aAtom == nsCSSPseudoElements::firstLine;
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NS_ASSERTION(nsCSSAnonBoxes::IsAnonBox(aAtom) ||
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result ==
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PseudoElementHasFlags(aAtom, CSS_PSEUDO_ELEMENT_IS_CSS2),
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"result doesn't match flags");
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return result;
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}
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/* static */ PRUint32
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nsCSSPseudoElements::FlagsForPseudoElement(nsIAtom *aAtom)
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{
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PRUint32 i;
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for (i = 0; i < NS_ARRAY_LENGTH(CSSPseudoElements_info); ++i) {
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if (*CSSPseudoElements_info[i].mAtom == aAtom) {
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break;
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}
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}
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NS_ASSERTION(i < NS_ARRAY_LENGTH(CSSPseudoElements_info),
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"argument must be a pseudo-element");
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return CSSPseudoElements_flags[i];
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}
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