mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 16:46:26 +00:00
8233 lines
260 KiB
C++
8233 lines
260 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 mozilla.org code.
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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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* emk <VYV03354@nifty.ne.jp>
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* Daniel Glazman <glazman@netscape.com>
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* L. David Baron <dbaron@dbaron.org>
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* Boris Zbarsky <bzbarsky@mit.edu>
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* Mats Palmgren <mats.palmgren@bredband.net>
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* Christian Biesinger <cbiesinger@web.de>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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/* parsing of CSS stylesheets, based on a token stream from the CSS scanner */
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#include "nsICSSParser.h"
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#include "nsCSSProps.h"
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#include "nsCSSKeywords.h"
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#include "nsCSSScanner.h"
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#include "nsICSSLoader.h"
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#include "nsICSSStyleRule.h"
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#include "nsICSSImportRule.h"
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#include "nsCSSRules.h"
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#include "nsICSSNameSpaceRule.h"
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#include "nsIUnicharInputStream.h"
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#include "nsICSSStyleSheet.h"
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#include "nsCSSDeclaration.h"
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#include "nsStyleConsts.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsUnicharUtils.h"
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#include "nsIAtom.h"
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#include "nsCOMArray.h"
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#include "nsColor.h"
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#include "nsStyleConsts.h"
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#include "nsCSSPseudoClasses.h"
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#include "nsCSSPseudoElements.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsINameSpaceManager.h"
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#include "nsXMLNameSpaceMap.h"
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#include "nsThemeConstants.h"
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#include "nsContentErrors.h"
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#include "nsPrintfCString.h"
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#include "nsIMediaList.h"
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#include "nsILookAndFeel.h"
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#include "nsStyleUtil.h"
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#include "nsIPrincipal.h"
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#include "prprf.h"
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#include "math.h"
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#include "nsContentUtils.h"
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#include "nsDOMError.h"
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#include "nsAutoPtr.h"
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#include "nsTArray.h"
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#include "prlog.h"
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// Flags for ParseVariant method
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#define VARIANT_KEYWORD 0x000001 // K
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#define VARIANT_LENGTH 0x000002 // L
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#define VARIANT_PERCENT 0x000004 // P
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#define VARIANT_COLOR 0x000008 // C eCSSUnit_Color, eCSSUnit_Ident (e.g. "red")
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#define VARIANT_URL 0x000010 // U
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#define VARIANT_NUMBER 0x000020 // N
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#define VARIANT_INTEGER 0x000040 // I
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#define VARIANT_ANGLE 0x000080 // G
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#define VARIANT_FREQUENCY 0x000100 // F
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#define VARIANT_TIME 0x000200 // T
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#define VARIANT_STRING 0x000400 // S
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#define VARIANT_COUNTER 0x000800 //
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#define VARIANT_ATTR 0x001000 //
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#define VARIANT_IDENTIFIER 0x002000 // D
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#define VARIANT_AUTO 0x010000 // A
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#define VARIANT_INHERIT 0x020000 // H eCSSUnit_Initial, eCSSUnit_Inherit
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#define VARIANT_NONE 0x040000 // O
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#define VARIANT_NORMAL 0x080000 // M
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#define VARIANT_SYSFONT 0x100000 // eCSSUnit_System_Font
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// Common combinations of variants
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#define VARIANT_AL (VARIANT_AUTO | VARIANT_LENGTH)
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#define VARIANT_LP (VARIANT_LENGTH | VARIANT_PERCENT)
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#define VARIANT_AH (VARIANT_AUTO | VARIANT_INHERIT)
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#define VARIANT_AHLP (VARIANT_AH | VARIANT_LP)
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#define VARIANT_AHI (VARIANT_AH | VARIANT_INTEGER)
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#define VARIANT_AHK (VARIANT_AH | VARIANT_KEYWORD)
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#define VARIANT_AHKLP (VARIANT_AHLP | VARIANT_KEYWORD)
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#define VARIANT_AUK (VARIANT_AUTO | VARIANT_URL | VARIANT_KEYWORD)
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#define VARIANT_AHUK (VARIANT_AH | VARIANT_URL | VARIANT_KEYWORD)
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#define VARIANT_AHL (VARIANT_AH | VARIANT_LENGTH)
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#define VARIANT_AHKL (VARIANT_AHK | VARIANT_LENGTH)
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#define VARIANT_HK (VARIANT_INHERIT | VARIANT_KEYWORD)
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#define VARIANT_HKF (VARIANT_HK | VARIANT_FREQUENCY)
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#define VARIANT_HKL (VARIANT_HK | VARIANT_LENGTH)
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#define VARIANT_HKLP (VARIANT_HK | VARIANT_LP)
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#define VARIANT_HKLPO (VARIANT_HKLP | VARIANT_NONE)
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#define VARIANT_HL (VARIANT_INHERIT | VARIANT_LENGTH)
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#define VARIANT_HI (VARIANT_INHERIT | VARIANT_INTEGER)
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#define VARIANT_HLP (VARIANT_HL | VARIANT_PERCENT)
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#define VARIANT_HLPN (VARIANT_HLP | VARIANT_NUMBER)
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#define VARIANT_HLPO (VARIANT_HLP | VARIANT_NONE)
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#define VARIANT_HTP (VARIANT_INHERIT | VARIANT_TIME | VARIANT_PERCENT)
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#define VARIANT_HMK (VARIANT_HK | VARIANT_NORMAL)
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#define VARIANT_HMKI (VARIANT_HMK | VARIANT_INTEGER)
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#define VARIANT_HC (VARIANT_INHERIT | VARIANT_COLOR)
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#define VARIANT_HCK (VARIANT_HK | VARIANT_COLOR)
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#define VARIANT_HUO (VARIANT_INHERIT | VARIANT_URL | VARIANT_NONE)
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#define VARIANT_AHUO (VARIANT_AUTO | VARIANT_HUO)
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#define VARIANT_HPN (VARIANT_INHERIT | VARIANT_PERCENT | VARIANT_NUMBER)
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#define VARIANT_HOK (VARIANT_HK | VARIANT_NONE)
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#define VARIANT_HN (VARIANT_INHERIT | VARIANT_NUMBER)
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#define VARIANT_HON (VARIANT_HN | VARIANT_NONE)
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#define VARIANT_HOS (VARIANT_INHERIT | VARIANT_NONE | VARIANT_STRING)
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//----------------------------------------------------------------------
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// Your basic top-down recursive descent style parser
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class CSSParserImpl : public nsICSSParser {
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public:
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CSSParserImpl();
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virtual ~CSSParserImpl();
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NS_DECL_ISUPPORTS
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NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet);
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NS_IMETHOD SetCaseSensitive(PRBool aCaseSensitive);
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NS_IMETHOD SetQuirkMode(PRBool aQuirkMode);
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#ifdef MOZ_SVG
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NS_IMETHOD SetSVGMode(PRBool aSVGMode);
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#endif
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NS_IMETHOD SetChildLoader(nsICSSLoader* aChildLoader);
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NS_IMETHOD Parse(nsIUnicharInputStream* aInput,
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nsIURI* aSheetURI,
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nsIURI* aBaseURI,
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nsIPrincipal* aSheetPrincipal,
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PRUint32 aLineNumber,
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PRBool aAllowUnsafeRules);
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NS_IMETHOD ParseStyleAttribute(const nsAString& aAttributeValue,
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nsIURI* aDocURL,
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nsIURI* aBaseURL,
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nsIPrincipal* aNodePrincipal,
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nsICSSStyleRule** aResult);
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NS_IMETHOD ParseAndAppendDeclaration(const nsAString& aBuffer,
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nsIURI* aSheetURL,
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nsIURI* aBaseURL,
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nsIPrincipal* aSheetPrincipal,
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nsCSSDeclaration* aDeclaration,
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PRBool aParseOnlyOneDecl,
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PRBool* aChanged,
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PRBool aClearOldDecl);
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NS_IMETHOD ParseRule(const nsAString& aRule,
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nsIURI* aSheetURL,
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nsIURI* aBaseURL,
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nsIPrincipal* aSheetPrincipal,
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nsCOMArray<nsICSSRule>& aResult);
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NS_IMETHOD ParseProperty(const nsCSSProperty aPropID,
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const nsAString& aPropValue,
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nsIURI* aSheetURL,
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nsIURI* aBaseURL,
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nsIPrincipal* aSheetPrincipal,
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nsCSSDeclaration* aDeclaration,
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PRBool* aChanged);
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NS_IMETHOD ParseMediaList(const nsSubstring& aBuffer,
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nsIURI* aURL, // for error reporting
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PRUint32 aLineNumber, // for error reporting
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nsMediaList* aMediaList,
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PRBool aHTMLMode);
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NS_IMETHOD ParseColorString(const nsSubstring& aBuffer,
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nsIURI* aURL, // for error reporting
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PRUint32 aLineNumber, // for error reporting
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nscolor* aColor);
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NS_IMETHOD ParseSelectorString(const nsSubstring& aSelectorString,
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nsIURI* aURL, // for error reporting
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PRUint32 aLineNumber, // for error reporting
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nsCSSSelectorList **aSelectorList);
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void AppendRule(nsICSSRule* aRule);
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protected:
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class nsAutoParseCompoundProperty;
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friend class nsAutoParseCompoundProperty;
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/**
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* This helper class automatically calls SetParsingCompoundProperty in its
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* constructor and takes care of resetting it to false in its destructor.
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*/
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class nsAutoParseCompoundProperty {
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public:
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nsAutoParseCompoundProperty(CSSParserImpl* aParser) : mParser(aParser)
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{
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NS_ASSERTION(!aParser->IsParsingCompoundProperty(),
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"already parsing compound property");
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NS_ASSERTION(aParser, "Null parser?");
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aParser->SetParsingCompoundProperty(PR_TRUE);
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}
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~nsAutoParseCompoundProperty()
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{
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mParser->SetParsingCompoundProperty(PR_FALSE);
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}
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private:
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CSSParserImpl* mParser;
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};
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void InitScanner(nsIUnicharInputStream* aInput, nsIURI* aSheetURI,
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PRUint32 aLineNumber, nsIURI* aBaseURI,
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nsIPrincipal* aSheetPrincipal);
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// the caller must hold on to aBuffer until parsing is done
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void InitScanner(const nsSubstring& aString, nsIURI* aSheetURI,
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PRUint32 aLineNumber, nsIURI* aBaseURI,
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nsIPrincipal* aSheetPrincipal);
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void ReleaseScanner(void);
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#ifdef MOZ_SVG
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PRBool IsSVGMode() const {
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return mScanner.IsSVGMode();
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}
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#endif
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PRBool GetToken(PRBool aSkipWS);
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PRBool GetURLToken();
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void UngetToken();
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void AssertInitialState() {
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NS_PRECONDITION(!mHTMLMediaMode, "Bad initial state");
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NS_PRECONDITION(!mUnresolvablePrefixException, "Bad initial state");
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NS_PRECONDITION(!mParsingCompoundProperty, "Bad initial state");
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}
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PRBool ExpectSymbol(PRUnichar aSymbol, PRBool aSkipWS);
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PRBool ExpectEndProperty();
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PRBool CheckEndProperty();
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nsSubstring* NextIdent();
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void SkipUntil(PRUnichar aStopSymbol);
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void SkipUntilOneOf(const PRUnichar* aStopSymbolChars);
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void SkipRuleSet();
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PRBool SkipAtRule();
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PRBool SkipDeclaration(PRBool aCheckForBraces);
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PRBool GetNonCloseParenToken(PRBool aSkipWS);
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PRBool PushGroup(nsICSSGroupRule* aRule);
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void PopGroup(void);
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PRBool ParseRuleSet(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseAtRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseCharsetRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseImportRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool GatherURL(nsString& aURL);
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PRBool GatherMedia(nsMediaList* aMedia,
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PRUnichar aStopSymbol);
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PRBool ParseMediaQuery(PRUnichar aStopSymbol, nsMediaQuery **aQuery,
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PRBool *aParsedSomething, PRBool *aHitStop);
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PRBool ParseMediaQueryExpression(nsMediaQuery* aQuery);
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PRBool ProcessImport(const nsString& aURLSpec,
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nsMediaList* aMedia,
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RuleAppendFunc aAppendFunc,
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void* aProcessData);
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PRBool ParseGroupRule(nsICSSGroupRule* aRule, RuleAppendFunc aAppendFunc,
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void* aProcessData);
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PRBool ParseMediaRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseMozDocumentRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseNameSpaceRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ProcessNameSpace(const nsString& aPrefix,
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const nsString& aURLSpec, RuleAppendFunc aAppendFunc,
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void* aProcessData);
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PRBool ParseFontFaceRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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PRBool ParseFontDescriptor(nsCSSFontFaceRule* aRule);
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PRBool ParseFontDescriptorValue(nsCSSFontDesc aDescID,
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nsCSSValue& aValue);
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PRBool ParsePageRule(RuleAppendFunc aAppendFunc, void* aProcessData);
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enum nsSelectorParsingStatus {
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// we have parsed a selector and we saw a token that cannot be
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// part of a selector:
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eSelectorParsingStatus_Done,
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// we should continue parsing the selector:
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eSelectorParsingStatus_Continue,
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// same as "Done" but we did not find a selector:
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eSelectorParsingStatus_Empty,
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// we saw an unexpected token or token value,
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// or we saw end-of-file with an unfinished selector:
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eSelectorParsingStatus_Error
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};
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nsSelectorParsingStatus ParseIDSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector);
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nsSelectorParsingStatus ParseClassSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector);
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nsSelectorParsingStatus ParsePseudoSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector,
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PRBool aIsNegated);
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nsSelectorParsingStatus ParseAttributeSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector);
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nsSelectorParsingStatus ParseTypeOrUniversalSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector,
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PRBool aIsNegated);
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nsSelectorParsingStatus ParsePseudoClassWithIdentArg(nsCSSSelector& aSelector,
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nsIAtom* aPseudo);
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nsSelectorParsingStatus ParsePseudoClassWithNthPairArg(nsCSSSelector& aSelector,
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nsIAtom* aPseudo);
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nsSelectorParsingStatus ParseNegatedSimpleSelector(PRInt32& aDataMask,
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nsCSSSelector& aSelector);
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nsSelectorParsingStatus ParseSelector(nsCSSSelector& aSelectorResult);
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// If aTerminateAtBrace is true, the selector list is done when we
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// hit a '{'. Otherwise, it's done when we hit EOF.
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PRBool ParseSelectorList(nsCSSSelectorList*& aListHead,
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PRBool aTerminateAtBrace);
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PRBool ParseSelectorGroup(nsCSSSelectorList*& aListHead);
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nsCSSDeclaration* ParseDeclarationBlock(PRBool aCheckForBraces);
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PRBool ParseDeclaration(nsCSSDeclaration* aDeclaration,
|
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PRBool aCheckForBraces,
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PRBool aMustCallValueAppended,
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PRBool* aChanged);
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// After a parse error parsing |aPropID|, clear the data in
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// |mTempData|.
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void ClearTempData(nsCSSProperty aPropID);
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// After a successful parse of |aPropID|, transfer data from
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// |mTempData| to |mData|. Set |*aChanged| to true if something
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// changed, but leave it unmodified otherwise. If aMustCallValueAppended
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// is false, will not call ValueAppended on aDeclaration if the property
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// is already set in it.
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void TransferTempData(nsCSSDeclaration* aDeclaration,
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nsCSSProperty aPropID, PRBool aIsImportant,
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PRBool aMustCallValueAppended,
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PRBool* aChanged);
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void DoTransferTempData(nsCSSDeclaration* aDeclaration,
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nsCSSProperty aPropID, PRBool aIsImportant,
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PRBool aMustCallValueAppended,
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PRBool* aChanged);
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PRBool ParseProperty(nsCSSProperty aPropID);
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PRBool ParseSingleValueProperty(nsCSSValue& aValue,
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|
nsCSSProperty aPropID);
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|
#ifdef MOZ_XUL
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PRBool ParseTreePseudoElement(nsCSSSelector& aSelector);
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|
#endif
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void InitBoxPropsAsPhysical(const nsCSSProperty *aSourceProperties);
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|
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// Property specific parsing routines
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PRBool ParseAzimuth(nsCSSValue& aValue);
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PRBool ParseBackground();
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|
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struct BackgroundItem;
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friend struct BackgroundItem;
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struct BackgroundItem {
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nsCSSValue mImage;
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nsCSSValue mRepeat;
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nsCSSValue mAttachment;
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nsCSSValuePair mPosition;
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|
nsCSSValue mClip;
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|
nsCSSValue mOrigin;
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// The background-color is set as a side-effect, and if so, mLastItem
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// is set to true.
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PRBool mLastItem;
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};
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struct BackgroundItemSimpleValueInfo {
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nsCSSValue BackgroundItem::*member;
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nsCSSProperty propID;
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};
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PRBool ParseBackgroundItem(BackgroundItem& aItem, PRBool aFirstItem);
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PRBool ParseBackgroundList(nsCSSProperty aPropID); // a single value prop-id
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PRBool ParseBackgroundColor(PRBool aInShorthand);
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PRBool ParseBackgroundPosition();
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PRBool ParseBoxPositionValues(nsCSSValuePair& aOut);
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PRBool ParseBorderColor();
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PRBool ParseBorderColors(nsCSSValueList** aResult,
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nsCSSProperty aProperty);
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PRBool ParseBorderImage();
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PRBool ParseBorderSpacing();
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PRBool ParseBorderSide(const nsCSSProperty aPropIDs[],
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PRBool aSetAllSides);
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|
PRBool ParseDirectionalBorderSide(const nsCSSProperty aPropIDs[],
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PRInt32 aSourceType);
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PRBool ParseBorderStyle();
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PRBool ParseBorderWidth();
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// for 'clip' and '-moz-image-region'
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PRBool ParseRect(nsCSSRect& aRect,
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nsCSSProperty aPropID);
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PRBool DoParseRect(nsCSSRect& aRect);
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PRBool ParseContent();
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|
PRBool ParseCounterData(nsCSSValuePairList** aResult,
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|
nsCSSProperty aPropID);
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|
PRBool ParseCue();
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PRBool ParseCursor();
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PRBool ParseFont();
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PRBool ParseFontWeight(nsCSSValue& aValue);
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|
PRBool ParseOneFamily(nsAString& aValue);
|
|
PRBool ParseFamily(nsCSSValue& aValue);
|
|
PRBool ParseFontSrc(nsCSSValue& aValue);
|
|
PRBool ParseFontSrcFormat(nsTArray<nsCSSValue>& values);
|
|
PRBool ParseFontRanges(nsCSSValue& aValue);
|
|
PRBool ParseListStyle();
|
|
PRBool ParseMargin();
|
|
PRBool ParseMarks(nsCSSValue& aValue);
|
|
PRBool ParseMozTransform();
|
|
PRBool ParseOutline();
|
|
PRBool ParseOverflow();
|
|
PRBool ParsePadding();
|
|
PRBool ParsePause();
|
|
PRBool ParseQuotes();
|
|
PRBool ParseSize();
|
|
PRBool ParseTextDecoration(nsCSSValue& aValue);
|
|
|
|
nsCSSValueList* ParseCSSShadowList(PRBool aIsBoxShadow);
|
|
PRBool ParseTextShadow();
|
|
PRBool ParseBoxShadow();
|
|
|
|
#ifdef MOZ_SVG
|
|
PRBool ParsePaint(nsCSSValuePair* aResult,
|
|
nsCSSProperty aPropID);
|
|
PRBool ParseDasharray();
|
|
PRBool ParseMarker();
|
|
#endif
|
|
|
|
// Reused utility parsing routines
|
|
void AppendValue(nsCSSProperty aPropID, const nsCSSValue& aValue);
|
|
PRBool ParseBoxProperties(nsCSSRect& aResult,
|
|
const nsCSSProperty aPropIDs[]);
|
|
PRBool ParseDirectionalBoxProperty(nsCSSProperty aProperty,
|
|
PRInt32 aSourceType);
|
|
PRBool ParseBoxCornerRadius(const nsCSSProperty aPropID);
|
|
PRBool ParseBoxCornerRadii(nsCSSCornerSizes& aRadii,
|
|
const nsCSSProperty aPropIDs[]);
|
|
PRInt32 ParseChoice(nsCSSValue aValues[],
|
|
const nsCSSProperty aPropIDs[], PRInt32 aNumIDs);
|
|
PRBool ParseColor(nsCSSValue& aValue);
|
|
PRBool ParseColorComponent(PRUint8& aComponent,
|
|
PRInt32& aType, char aStop);
|
|
// ParseHSLColor parses everything starting with the opening '('
|
|
// up through and including the aStop char.
|
|
PRBool ParseHSLColor(nscolor& aColor, char aStop);
|
|
// ParseColorOpacity will enforce that the color ends with a ')'
|
|
// after the opacity
|
|
PRBool ParseColorOpacity(PRUint8& aOpacity);
|
|
PRBool ParseEnum(nsCSSValue& aValue, const PRInt32 aKeywordTable[]);
|
|
PRBool ParseVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[]);
|
|
PRBool ParseNonNegativeVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[]);
|
|
PRBool ParsePositiveNonZeroVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[]);
|
|
PRBool ParseCounter(nsCSSValue& aValue);
|
|
PRBool ParseAttr(nsCSSValue& aValue);
|
|
PRBool ParseURL(nsCSSValue& aValue);
|
|
PRBool TranslateDimension(nsCSSValue& aValue, PRInt32 aVariantMask,
|
|
float aNumber, const nsString& aUnit);
|
|
|
|
void SetParsingCompoundProperty(PRBool aBool) {
|
|
NS_ASSERTION(aBool == PR_TRUE || aBool == PR_FALSE, "bad PRBool value");
|
|
mParsingCompoundProperty = aBool;
|
|
}
|
|
PRBool IsParsingCompoundProperty(void) const {
|
|
return mParsingCompoundProperty;
|
|
}
|
|
|
|
/* Functions for -moz-transform Parsing */
|
|
PRBool ReadSingleTransform(nsCSSValueList**& aTail);
|
|
PRBool ParseFunction(const nsString &aFunction, const PRInt32 aAllowedTypes[],
|
|
PRUint16 aMinElems, PRUint16 aMaxElems,
|
|
nsCSSValue &aValue);
|
|
PRBool ParseFunctionInternals(const PRInt32 aVariantMask[],
|
|
PRUint16 aMinElems,
|
|
PRUint16 aMaxElems,
|
|
nsTArray<nsCSSValue>& aOutput);
|
|
|
|
/* Functions for -moz-transform-origin Parsing */
|
|
PRBool ParseMozTransformOrigin();
|
|
|
|
|
|
/* Find and return the correct namespace ID for the prefix aPrefix.
|
|
If the prefix cannot be resolved to a namespace, this method will
|
|
return false. Otherwise it will return true. When returning
|
|
false, it may set the low-level error code, depending on the
|
|
value of mUnresolvablePrefixException.
|
|
|
|
This method never returns kNameSpaceID_Unknown or
|
|
kNameSpaceID_None for aNameSpaceID while returning true.
|
|
*/
|
|
PRBool GetNamespaceIdForPrefix(const nsString& aPrefix,
|
|
PRInt32* aNameSpaceID);
|
|
|
|
/* Find the correct default namespace, and set it on aSelector. */
|
|
void SetDefaultNamespaceOnSelector(nsCSSSelector& aSelector);
|
|
|
|
// Current token. The value is valid after calling GetToken and invalidated
|
|
// by UngetToken.
|
|
nsCSSToken mToken;
|
|
|
|
// Our scanner.
|
|
nsCSSScanner mScanner;
|
|
|
|
// The URI to be used as a base for relative URIs.
|
|
nsCOMPtr<nsIURI> mBaseURL;
|
|
|
|
// The URI to be used as an HTTP "Referer" and for error reporting.
|
|
nsCOMPtr<nsIURI> mSheetURL;
|
|
|
|
// The principal of the sheet involved
|
|
nsCOMPtr<nsIPrincipal> mSheetPrincipal;
|
|
|
|
// The sheet we're parsing into
|
|
nsCOMPtr<nsICSSStyleSheet> mSheet;
|
|
|
|
// Used for @import rules
|
|
nsICSSLoader* mChildLoader; // not ref counted, it owns us
|
|
|
|
// Sheet section we're in. This is used to enforce correct ordering of the
|
|
// various rule types (eg the fact that a @charset rule must come before
|
|
// anything else). Note that there are checks of similar things in various
|
|
// places in nsCSSStyleSheet.cpp (e.g in insertRule, RebuildChildList).
|
|
enum nsCSSSection {
|
|
eCSSSection_Charset,
|
|
eCSSSection_Import,
|
|
eCSSSection_NameSpace,
|
|
eCSSSection_General
|
|
};
|
|
nsCSSSection mSection;
|
|
|
|
nsXMLNameSpaceMap *mNameSpaceMap; // weak, mSheet owns it
|
|
|
|
// After an UngetToken is done this flag is true. The next call to
|
|
// GetToken clears the flag.
|
|
PRPackedBool mHavePushBack : 1;
|
|
|
|
// True if we are in quirks mode; false in standards or almost standards mode
|
|
PRPackedBool mNavQuirkMode : 1;
|
|
|
|
// True if unsafe rules should be allowed
|
|
PRPackedBool mUnsafeRulesEnabled : 1;
|
|
|
|
// True for parsing media lists for HTML attributes, where we have to
|
|
// ignore CSS comments.
|
|
PRPackedBool mHTMLMediaMode : 1;
|
|
|
|
// True if tagnames and attributes are case-sensitive
|
|
PRPackedBool mCaseSensitive : 1;
|
|
|
|
// This flag is set when parsing a non-box shorthand; it's used to not apply
|
|
// some quirks during shorthand parsing
|
|
PRPackedBool mParsingCompoundProperty : 1;
|
|
|
|
// If this flag is true, failure to resolve a namespace prefix
|
|
// should set the low-level error to NS_ERROR_DOM_NAMESPACE_ERR
|
|
PRPackedBool mUnresolvablePrefixException : 1;
|
|
|
|
// Stack of rule groups; used for @media and such.
|
|
nsCOMArray<nsICSSGroupRule> mGroupStack;
|
|
|
|
// During the parsing of a property (which may be a shorthand), the data
|
|
// are stored in |mTempData|. (It is needed to ensure that parser
|
|
// errors cause the data to be ignored, and to ensure that a
|
|
// non-'!important' declaration does not override an '!important'
|
|
// one.)
|
|
nsCSSExpandedDataBlock mTempData;
|
|
|
|
// All data from successfully parsed properties are placed into |mData|.
|
|
nsCSSExpandedDataBlock mData;
|
|
|
|
#ifdef DEBUG
|
|
PRPackedBool mScannerInited;
|
|
#endif
|
|
};
|
|
|
|
static void AppendRuleToArray(nsICSSRule* aRule, void* aArray)
|
|
{
|
|
static_cast<nsCOMArray<nsICSSRule>*>(aArray)->AppendObject(aRule);
|
|
}
|
|
|
|
static void AppendRuleToSheet(nsICSSRule* aRule, void* aParser)
|
|
{
|
|
CSSParserImpl* parser = (CSSParserImpl*) aParser;
|
|
parser->AppendRule(aRule);
|
|
}
|
|
|
|
nsresult
|
|
NS_NewCSSParser(nsICSSParser** aInstancePtrResult)
|
|
{
|
|
CSSParserImpl *it = new CSSParserImpl();
|
|
|
|
if (it == nsnull) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return it->QueryInterface(NS_GET_IID(nsICSSParser), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
#ifdef CSS_REPORT_PARSE_ERRORS
|
|
|
|
#define REPORT_UNEXPECTED(msg_) \
|
|
mScanner.ReportUnexpected(#msg_)
|
|
|
|
#define REPORT_UNEXPECTED_P(msg_, params_) \
|
|
mScanner.ReportUnexpectedParams(#msg_, params_, NS_ARRAY_LENGTH(params_))
|
|
|
|
#define REPORT_UNEXPECTED_EOF(lf_) \
|
|
mScanner.ReportUnexpectedEOF(#lf_)
|
|
|
|
#define REPORT_UNEXPECTED_EOF_CHAR(ch_) \
|
|
mScanner.ReportUnexpectedEOF(ch_)
|
|
|
|
#define REPORT_UNEXPECTED_TOKEN(msg_) \
|
|
mScanner.ReportUnexpectedToken(mToken, #msg_)
|
|
|
|
#define REPORT_UNEXPECTED_TOKEN_P(msg_, params_) \
|
|
mScanner.ReportUnexpectedTokenParams(mToken, #msg_, \
|
|
params_, NS_ARRAY_LENGTH(params_))
|
|
|
|
|
|
#define OUTPUT_ERROR() \
|
|
mScanner.OutputError()
|
|
|
|
#define CLEAR_ERROR() \
|
|
mScanner.ClearError()
|
|
|
|
#else
|
|
|
|
#define REPORT_UNEXPECTED(msg_)
|
|
#define REPORT_UNEXPECTED_P(msg_, params_)
|
|
#define REPORT_UNEXPECTED_EOF(lf_)
|
|
#define REPORT_UNEXPECTED_EOF_CHAR(ch_)
|
|
#define REPORT_UNEXPECTED_TOKEN(msg_)
|
|
#define REPORT_UNEXPECTED_TOKEN_P(msg_, params_)
|
|
#define OUTPUT_ERROR()
|
|
#define CLEAR_ERROR()
|
|
|
|
#endif
|
|
|
|
CSSParserImpl::CSSParserImpl()
|
|
: mToken(),
|
|
mScanner(),
|
|
mChildLoader(nsnull),
|
|
mSection(eCSSSection_Charset),
|
|
mNameSpaceMap(nsnull),
|
|
mHavePushBack(PR_FALSE),
|
|
mNavQuirkMode(PR_FALSE),
|
|
mUnsafeRulesEnabled(PR_FALSE),
|
|
mHTMLMediaMode(PR_FALSE),
|
|
mCaseSensitive(PR_FALSE),
|
|
mParsingCompoundProperty(PR_FALSE),
|
|
mUnresolvablePrefixException(PR_FALSE)
|
|
#ifdef DEBUG
|
|
, mScannerInited(PR_FALSE)
|
|
#endif
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS1(CSSParserImpl, nsICSSParser)
|
|
|
|
CSSParserImpl::~CSSParserImpl()
|
|
{
|
|
mData.AssertInitialState();
|
|
mTempData.AssertInitialState();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::SetStyleSheet(nsICSSStyleSheet* aSheet)
|
|
{
|
|
if (aSheet != mSheet) {
|
|
// Switch to using the new sheet, if any
|
|
mGroupStack.Clear();
|
|
mSheet = aSheet;
|
|
if (mSheet) {
|
|
mNameSpaceMap = mSheet->GetNameSpaceMap();
|
|
} else {
|
|
mNameSpaceMap = nsnull;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::SetCaseSensitive(PRBool aCaseSensitive)
|
|
{
|
|
NS_ASSERTION(aCaseSensitive == PR_TRUE || aCaseSensitive == PR_FALSE, "bad PRBool value");
|
|
mCaseSensitive = aCaseSensitive;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::SetQuirkMode(PRBool aQuirkMode)
|
|
{
|
|
NS_ASSERTION(aQuirkMode == PR_TRUE || aQuirkMode == PR_FALSE, "bad PRBool value");
|
|
mNavQuirkMode = aQuirkMode;
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::SetSVGMode(PRBool aSVGMode)
|
|
{
|
|
NS_ASSERTION(aSVGMode == PR_TRUE || aSVGMode == PR_FALSE,
|
|
"bad PRBool value");
|
|
mScanner.SetSVGMode(aSVGMode);
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::SetChildLoader(nsICSSLoader* aChildLoader)
|
|
{
|
|
mChildLoader = aChildLoader; // not ref counted, it owns us
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::InitScanner(nsIUnicharInputStream* aInput, nsIURI* aSheetURI,
|
|
PRUint32 aLineNumber, nsIURI* aBaseURI,
|
|
nsIPrincipal* aSheetPrincipal)
|
|
{
|
|
NS_ASSERTION(! mScannerInited, "already have scanner");
|
|
|
|
mScanner.Init(aInput, nsnull, 0, aSheetURI, aLineNumber);
|
|
#ifdef DEBUG
|
|
mScannerInited = PR_TRUE;
|
|
#endif
|
|
mBaseURL = aBaseURI;
|
|
mSheetURL = aSheetURI;
|
|
mSheetPrincipal = aSheetPrincipal;
|
|
|
|
mHavePushBack = PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::InitScanner(const nsSubstring& aString, nsIURI* aSheetURI,
|
|
PRUint32 aLineNumber, nsIURI* aBaseURI,
|
|
nsIPrincipal* aSheetPrincipal)
|
|
{
|
|
// Having it not own the string is OK since the caller will hold on to
|
|
// the stream until we're done parsing.
|
|
NS_ASSERTION(! mScannerInited, "already have scanner");
|
|
|
|
mScanner.Init(nsnull, aString.BeginReading(), aString.Length(), aSheetURI, aLineNumber);
|
|
|
|
#ifdef DEBUG
|
|
mScannerInited = PR_TRUE;
|
|
#endif
|
|
mBaseURL = aBaseURI;
|
|
mSheetURL = aSheetURI;
|
|
mSheetPrincipal = aSheetPrincipal;
|
|
|
|
mHavePushBack = PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::ReleaseScanner(void)
|
|
{
|
|
mScanner.Close();
|
|
#ifdef DEBUG
|
|
mScannerInited = PR_FALSE;
|
|
#endif
|
|
mBaseURL = nsnull;
|
|
mSheetURL = nsnull;
|
|
mSheetPrincipal = nsnull;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::Parse(nsIUnicharInputStream* aInput,
|
|
nsIURI* aSheetURI,
|
|
nsIURI* aBaseURI,
|
|
nsIPrincipal* aSheetPrincipal,
|
|
PRUint32 aLineNumber,
|
|
PRBool aAllowUnsafeRules)
|
|
{
|
|
NS_PRECONDITION(aSheetPrincipal, "Must have principal here!");
|
|
|
|
NS_ASSERTION(nsnull != aBaseURI, "need base URL");
|
|
NS_ASSERTION(nsnull != aSheetURI, "need sheet URL");
|
|
AssertInitialState();
|
|
|
|
NS_PRECONDITION(mSheet, "Must have sheet to parse into");
|
|
NS_ENSURE_STATE(mSheet);
|
|
|
|
#ifdef DEBUG
|
|
nsCOMPtr<nsIURI> uri;
|
|
mSheet->GetSheetURI(getter_AddRefs(uri));
|
|
PRBool equal;
|
|
NS_ASSERTION(NS_SUCCEEDED(aSheetURI->Equals(uri, &equal)) && equal,
|
|
"Sheet URI does not match passed URI");
|
|
NS_ASSERTION(NS_SUCCEEDED(mSheet->Principal()->Equals(aSheetPrincipal,
|
|
&equal)) &&
|
|
equal,
|
|
"Sheet principal does not match passed principal");
|
|
#endif
|
|
|
|
InitScanner(aInput, aSheetURI, aLineNumber, aBaseURI, aSheetPrincipal);
|
|
|
|
PRInt32 ruleCount = 0;
|
|
mSheet->StyleRuleCount(ruleCount);
|
|
if (0 < ruleCount) {
|
|
nsICSSRule* lastRule = nsnull;
|
|
mSheet->GetStyleRuleAt(ruleCount - 1, lastRule);
|
|
if (lastRule) {
|
|
PRInt32 type;
|
|
lastRule->GetType(type);
|
|
switch (type) {
|
|
case nsICSSRule::CHARSET_RULE:
|
|
case nsICSSRule::IMPORT_RULE:
|
|
mSection = eCSSSection_Import;
|
|
break;
|
|
case nsICSSRule::NAMESPACE_RULE:
|
|
mSection = eCSSSection_NameSpace;
|
|
break;
|
|
default:
|
|
mSection = eCSSSection_General;
|
|
break;
|
|
}
|
|
NS_RELEASE(lastRule);
|
|
}
|
|
}
|
|
else {
|
|
mSection = eCSSSection_Charset; // sheet is empty, any rules are fair
|
|
}
|
|
|
|
mUnsafeRulesEnabled = aAllowUnsafeRules;
|
|
|
|
nsCSSToken* tk = &mToken;
|
|
for (;;) {
|
|
// Get next non-whitespace token
|
|
if (!GetToken(PR_TRUE)) {
|
|
OUTPUT_ERROR();
|
|
break;
|
|
}
|
|
if (eCSSToken_HTMLComment == tk->mType) {
|
|
continue; // legal here only
|
|
}
|
|
if (eCSSToken_AtKeyword == tk->mType) {
|
|
ParseAtRule(AppendRuleToSheet, this);
|
|
continue;
|
|
}
|
|
UngetToken();
|
|
if (ParseRuleSet(AppendRuleToSheet, this)) {
|
|
mSection = eCSSSection_General;
|
|
}
|
|
}
|
|
ReleaseScanner();
|
|
|
|
mUnsafeRulesEnabled = PR_FALSE;
|
|
|
|
// XXX check for low level errors
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* Determines whether the identifier contained in the given string is a
|
|
* vendor-specific identifier, as described in CSS 2.1 section 4.1.2.1.
|
|
*/
|
|
static PRBool
|
|
NonMozillaVendorIdentifier(const nsAString& ident)
|
|
{
|
|
return (ident.First() == PRUnichar('-') &&
|
|
!StringBeginsWith(ident, NS_LITERAL_STRING("-moz-"))) ||
|
|
ident.First() == PRUnichar('_');
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseStyleAttribute(const nsAString& aAttributeValue,
|
|
nsIURI* aDocURL,
|
|
nsIURI* aBaseURL,
|
|
nsIPrincipal* aNodePrincipal,
|
|
nsICSSStyleRule** aResult)
|
|
{
|
|
NS_PRECONDITION(aNodePrincipal, "Must have principal here!");
|
|
AssertInitialState();
|
|
|
|
NS_ASSERTION(nsnull != aBaseURL, "need base URL");
|
|
|
|
// XXX line number?
|
|
InitScanner(aAttributeValue, aDocURL, 0, aBaseURL, aNodePrincipal);
|
|
|
|
mSection = eCSSSection_General;
|
|
|
|
// In quirks mode, allow style declarations to have braces or not
|
|
// (bug 99554).
|
|
PRBool haveBraces;
|
|
if (mNavQuirkMode && GetToken(PR_TRUE)) {
|
|
haveBraces = eCSSToken_Symbol == mToken.mType &&
|
|
'{' == mToken.mSymbol;
|
|
UngetToken();
|
|
}
|
|
else {
|
|
haveBraces = PR_FALSE;
|
|
}
|
|
|
|
nsCSSDeclaration* declaration = ParseDeclarationBlock(haveBraces);
|
|
if (declaration) {
|
|
// Create a style rule for the declaration
|
|
nsICSSStyleRule* rule = nsnull;
|
|
nsresult rv = NS_NewCSSStyleRule(&rule, nsnull, declaration);
|
|
if (NS_FAILED(rv)) {
|
|
declaration->RuleAbort();
|
|
ReleaseScanner();
|
|
return rv;
|
|
}
|
|
*aResult = rule;
|
|
}
|
|
else {
|
|
*aResult = nsnull;
|
|
}
|
|
|
|
ReleaseScanner();
|
|
|
|
// XXX check for low level errors
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseAndAppendDeclaration(const nsAString& aBuffer,
|
|
nsIURI* aSheetURL,
|
|
nsIURI* aBaseURL,
|
|
nsIPrincipal* aSheetPrincipal,
|
|
nsCSSDeclaration* aDeclaration,
|
|
PRBool aParseOnlyOneDecl,
|
|
PRBool* aChanged,
|
|
PRBool aClearOldDecl)
|
|
{
|
|
NS_PRECONDITION(aSheetPrincipal, "Must have principal here!");
|
|
AssertInitialState();
|
|
|
|
*aChanged = PR_FALSE;
|
|
|
|
InitScanner(aBuffer, aSheetURL, 0, aBaseURL, aSheetPrincipal);
|
|
|
|
mSection = eCSSSection_General;
|
|
|
|
if (aClearOldDecl) {
|
|
mData.AssertInitialState();
|
|
aDeclaration->ClearData();
|
|
// We could check if it was already empty, but...
|
|
*aChanged = PR_TRUE;
|
|
} else {
|
|
aDeclaration->ExpandTo(&mData);
|
|
}
|
|
|
|
nsresult rv = NS_OK;
|
|
do {
|
|
// If we cleared the old decl, then we want to be calling
|
|
// ValueAppended as we parse.
|
|
if (!ParseDeclaration(aDeclaration, PR_FALSE, aClearOldDecl, aChanged)) {
|
|
rv = mScanner.GetLowLevelError();
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
|
|
if (!SkipDeclaration(PR_FALSE)) {
|
|
rv = mScanner.GetLowLevelError();
|
|
break;
|
|
}
|
|
}
|
|
} while (!aParseOnlyOneDecl);
|
|
aDeclaration->CompressFrom(&mData);
|
|
|
|
ReleaseScanner();
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseRule(const nsAString& aRule,
|
|
nsIURI* aSheetURL,
|
|
nsIURI* aBaseURL,
|
|
nsIPrincipal* aSheetPrincipal,
|
|
nsCOMArray<nsICSSRule>& aResult)
|
|
{
|
|
NS_PRECONDITION(aSheetPrincipal, "Must have principal here!");
|
|
AssertInitialState();
|
|
|
|
NS_ASSERTION(nsnull != aBaseURL, "need base URL");
|
|
|
|
InitScanner(aRule, aSheetURL, 0, aBaseURL, aSheetPrincipal);
|
|
|
|
mSection = eCSSSection_Charset; // callers are responsible for rejecting invalid rules.
|
|
|
|
nsCSSToken* tk = &mToken;
|
|
// Get first non-whitespace token
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED(PEParseRuleWSOnly);
|
|
OUTPUT_ERROR();
|
|
} else if (eCSSToken_AtKeyword == tk->mType) {
|
|
ParseAtRule(AppendRuleToArray, &aResult);
|
|
}
|
|
else {
|
|
UngetToken();
|
|
ParseRuleSet(AppendRuleToArray, &aResult);
|
|
}
|
|
OUTPUT_ERROR();
|
|
ReleaseScanner();
|
|
// XXX check for low-level errors
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseProperty(const nsCSSProperty aPropID,
|
|
const nsAString& aPropValue,
|
|
nsIURI* aSheetURL,
|
|
nsIURI* aBaseURL,
|
|
nsIPrincipal* aSheetPrincipal,
|
|
nsCSSDeclaration* aDeclaration,
|
|
PRBool* aChanged)
|
|
{
|
|
NS_PRECONDITION(aSheetPrincipal, "Must have principal here!");
|
|
AssertInitialState();
|
|
|
|
NS_ASSERTION(nsnull != aBaseURL, "need base URL");
|
|
NS_ASSERTION(nsnull != aDeclaration, "Need declaration to parse into!");
|
|
*aChanged = PR_FALSE;
|
|
|
|
InitScanner(aPropValue, aSheetURL, 0, aBaseURL, aSheetPrincipal);
|
|
|
|
mSection = eCSSSection_General;
|
|
|
|
if (eCSSProperty_UNKNOWN == aPropID) { // unknown property
|
|
NS_ConvertASCIItoUTF16 propName(nsCSSProps::GetStringValue(aPropID));
|
|
const PRUnichar *params[] = {
|
|
propName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEUnknownProperty, params);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
ReleaseScanner();
|
|
return NS_OK;
|
|
}
|
|
|
|
mData.AssertInitialState();
|
|
mTempData.AssertInitialState();
|
|
aDeclaration->ExpandTo(&mData);
|
|
nsresult result = NS_OK;
|
|
PRBool parsedOK = ParseProperty(aPropID);
|
|
if (parsedOK && !GetToken(PR_TRUE)) {
|
|
TransferTempData(aDeclaration, aPropID, PR_FALSE, PR_FALSE, aChanged);
|
|
} else {
|
|
if (parsedOK) {
|
|
// Junk at end of property value.
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectEndValue);
|
|
}
|
|
NS_ConvertASCIItoUTF16 propName(nsCSSProps::GetStringValue(aPropID));
|
|
const PRUnichar *params[] = {
|
|
propName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEValueParsingError, params);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
ClearTempData(aPropID);
|
|
result = mScanner.GetLowLevelError();
|
|
}
|
|
CLEAR_ERROR();
|
|
|
|
aDeclaration->CompressFrom(&mData);
|
|
|
|
ReleaseScanner();
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseMediaList(const nsSubstring& aBuffer,
|
|
nsIURI* aURL, // for error reporting
|
|
PRUint32 aLineNumber, // for error reporting
|
|
nsMediaList* aMediaList,
|
|
PRBool aHTMLMode)
|
|
{
|
|
// XXX Are there cases where the caller wants to keep what it already
|
|
// has in case of parser error?
|
|
aMediaList->Clear();
|
|
|
|
// fake base URL since media lists don't have URLs in them
|
|
InitScanner(aBuffer, aURL, aLineNumber, aURL, nsnull);
|
|
|
|
AssertInitialState();
|
|
NS_ASSERTION(aHTMLMode == PR_TRUE || aHTMLMode == PR_FALSE,
|
|
"invalid PRBool");
|
|
mHTMLMediaMode = aHTMLMode;
|
|
|
|
// XXXldb We need to make the scanner not skip CSS comments! (Or
|
|
// should we?)
|
|
|
|
// For aHTMLMode, we used to follow the parsing rules in
|
|
// http://www.w3.org/TR/1999/REC-html401-19991224/types.html#type-media-descriptors
|
|
// which wouldn't work for media queries since they remove all but the
|
|
// first word. However, they're changed in
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/section-document.html#media2
|
|
// (as of 2008-05-29) which says that the media attribute just points
|
|
// to a media query. (The main substative difference is the relative
|
|
// precedence of commas and paretheses.)
|
|
|
|
if (!GatherMedia(aMediaList, PRUnichar(0))) {
|
|
aMediaList->Clear();
|
|
aMediaList->SetNonEmpty(); // don't match anything
|
|
if (!mHTMLMediaMode) {
|
|
OUTPUT_ERROR();
|
|
}
|
|
}
|
|
nsresult rv = mScanner.GetLowLevelError();
|
|
CLEAR_ERROR();
|
|
ReleaseScanner();
|
|
mHTMLMediaMode = PR_FALSE;
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseColorString(const nsSubstring& aBuffer,
|
|
nsIURI* aURL, // for error reporting
|
|
PRUint32 aLineNumber, // for error reporting
|
|
nscolor* aColor)
|
|
{
|
|
AssertInitialState();
|
|
InitScanner(aBuffer, aURL, aLineNumber, aURL, nsnull);
|
|
|
|
nsCSSValue value;
|
|
PRBool colorParsed = ParseColor(value);
|
|
nsresult rv = mScanner.GetLowLevelError();
|
|
OUTPUT_ERROR();
|
|
ReleaseScanner();
|
|
|
|
if (!colorParsed) {
|
|
return NS_FAILED(rv) ? rv : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (value.GetUnit() == eCSSUnit_Ident) {
|
|
nscolor rgba;
|
|
if (NS_ColorNameToRGB(nsDependentString(value.GetStringBufferValue()), &rgba)) {
|
|
(*aColor) = rgba;
|
|
rv = NS_OK;
|
|
}
|
|
} else if (value.GetUnit() == eCSSUnit_Color) {
|
|
(*aColor) = value.GetColorValue();
|
|
rv = NS_OK;
|
|
} else if (value.GetUnit() == eCSSUnit_EnumColor) {
|
|
PRInt32 intValue = value.GetIntValue();
|
|
if (intValue >= 0) {
|
|
nsCOMPtr<nsILookAndFeel> lfSvc = do_GetService("@mozilla.org/widget/lookandfeel;1");
|
|
if (lfSvc) {
|
|
nscolor rgba;
|
|
rv = lfSvc->GetColor((nsILookAndFeel::nsColorID) value.GetIntValue(), rgba);
|
|
if (NS_SUCCEEDED(rv))
|
|
(*aColor) = rgba;
|
|
}
|
|
} else {
|
|
// XXX - this is NS_COLOR_CURRENTCOLOR, NS_COLOR_MOZ_HYPERLINKTEXT, etc.
|
|
// which we don't handle as per the ParseColorString definition. Should
|
|
// remove this limitation at some point.
|
|
rv = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSParserImpl::ParseSelectorString(const nsSubstring& aSelectorString,
|
|
nsIURI* aURL, // for error reporting
|
|
PRUint32 aLineNumber, // for error reporting
|
|
nsCSSSelectorList **aSelectorList)
|
|
{
|
|
InitScanner(aSelectorString, aURL, aLineNumber, aURL, nsnull);
|
|
|
|
AssertInitialState();
|
|
|
|
mUnresolvablePrefixException = PR_TRUE;
|
|
|
|
PRBool success = ParseSelectorList(*aSelectorList, PR_FALSE);
|
|
nsresult rv = mScanner.GetLowLevelError();
|
|
OUTPUT_ERROR();
|
|
ReleaseScanner();
|
|
|
|
mUnresolvablePrefixException = PR_FALSE;
|
|
|
|
if (success) {
|
|
NS_ASSERTION(*aSelectorList, "Should have list!");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_ASSERTION(!*aSelectorList, "Shouldn't have list!");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = NS_ERROR_DOM_SYNTAX_ERR;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
PRBool
|
|
CSSParserImpl::GetToken(PRBool aSkipWS)
|
|
{
|
|
for (;;) {
|
|
if (!mHavePushBack) {
|
|
if (!mScanner.Next(mToken)) {
|
|
break;
|
|
}
|
|
}
|
|
mHavePushBack = PR_FALSE;
|
|
if (aSkipWS && (eCSSToken_WhiteSpace == mToken.mType)) {
|
|
continue;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::GetURLToken()
|
|
{
|
|
for (;;) {
|
|
// XXXldb This pushback code doesn't make sense.
|
|
if (! mHavePushBack) {
|
|
if (! mScanner.NextURL(mToken)) {
|
|
break;
|
|
}
|
|
}
|
|
mHavePushBack = PR_FALSE;
|
|
if (eCSSToken_WhiteSpace != mToken.mType) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::UngetToken()
|
|
{
|
|
NS_PRECONDITION(mHavePushBack == PR_FALSE, "double pushback");
|
|
mHavePushBack = PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ExpectSymbol(PRUnichar aSymbol,
|
|
PRBool aSkipWS)
|
|
{
|
|
if (!GetToken(aSkipWS)) {
|
|
// CSS2.1 specifies that all "open constructs" are to be closed at
|
|
// EOF. It simplifies higher layers if we claim to have found an
|
|
// ), ], }, or ; if we encounter EOF while looking for one of them.
|
|
// Do still issue a diagnostic, to aid debugging.
|
|
if (aSymbol == ')' || aSymbol == ']' ||
|
|
aSymbol == '}' || aSymbol == ';') {
|
|
REPORT_UNEXPECTED_EOF_CHAR(aSymbol);
|
|
return PR_TRUE;
|
|
}
|
|
else
|
|
return PR_FALSE;
|
|
}
|
|
if (mToken.IsSymbol(aSymbol)) {
|
|
return PR_TRUE;
|
|
}
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Checks to see if we're at the end of a property. If an error occurs during
|
|
// the check, does not signal a parse error.
|
|
PRBool
|
|
CSSParserImpl::CheckEndProperty()
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
return PR_TRUE; // properties may end with eof
|
|
}
|
|
if ((eCSSToken_Symbol == mToken.mType) &&
|
|
((';' == mToken.mSymbol) ||
|
|
('!' == mToken.mSymbol) ||
|
|
('}' == mToken.mSymbol))) {
|
|
// XXX need to verify that ! is only followed by "important [;|}]
|
|
// XXX this requires a multi-token pushback buffer
|
|
UngetToken();
|
|
return PR_TRUE;
|
|
}
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Checks if we're at the end of a property, raising an error if we're not.
|
|
PRBool
|
|
CSSParserImpl::ExpectEndProperty()
|
|
{
|
|
if (CheckEndProperty())
|
|
return PR_TRUE;
|
|
|
|
// If we're here, we read something incorrect, so we should report it.
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectEndValue);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
nsSubstring*
|
|
CSSParserImpl::NextIdent()
|
|
{
|
|
// XXX Error reporting?
|
|
if (!GetToken(PR_TRUE)) {
|
|
return nsnull;
|
|
}
|
|
if (eCSSToken_Ident != mToken.mType) {
|
|
UngetToken();
|
|
return nsnull;
|
|
}
|
|
return &mToken.mIdent;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::SkipAtRule()
|
|
{
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PESkipAtRuleEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Symbol == mToken.mType) {
|
|
PRUnichar symbol = mToken.mSymbol;
|
|
if (symbol == ';') {
|
|
break;
|
|
}
|
|
if (symbol == '{') {
|
|
SkipUntil('}');
|
|
break;
|
|
} else if (symbol == '(') {
|
|
SkipUntil(')');
|
|
} else if (symbol == '[') {
|
|
SkipUntil(']');
|
|
}
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseAtRule(RuleAppendFunc aAppendFunc,
|
|
void* aData)
|
|
{
|
|
nsCSSSection newSection;
|
|
PRBool (CSSParserImpl::*parseFunc)(RuleAppendFunc, void*);
|
|
|
|
if ((mSection <= eCSSSection_Charset) &&
|
|
(mToken.mIdent.LowerCaseEqualsLiteral("charset"))) {
|
|
parseFunc = &CSSParserImpl::ParseCharsetRule;
|
|
newSection = eCSSSection_Import; // only one charset allowed
|
|
|
|
} else if ((mSection <= eCSSSection_Import) &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("import")) {
|
|
parseFunc = &CSSParserImpl::ParseImportRule;
|
|
newSection = eCSSSection_Import;
|
|
|
|
} else if ((mSection <= eCSSSection_NameSpace) &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("namespace")) {
|
|
parseFunc = &CSSParserImpl::ParseNameSpaceRule;
|
|
newSection = eCSSSection_NameSpace;
|
|
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("media")) {
|
|
parseFunc = &CSSParserImpl::ParseMediaRule;
|
|
newSection = eCSSSection_General;
|
|
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("-moz-document")) {
|
|
parseFunc = &CSSParserImpl::ParseMozDocumentRule;
|
|
newSection = eCSSSection_General;
|
|
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("font-face")) {
|
|
parseFunc = &CSSParserImpl::ParseFontFaceRule;
|
|
newSection = eCSSSection_General;
|
|
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("page")) {
|
|
parseFunc = &CSSParserImpl::ParsePageRule;
|
|
newSection = eCSSSection_General;
|
|
|
|
} else {
|
|
if (!NonMozillaVendorIdentifier(mToken.mIdent)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEUnknownAtRule);
|
|
OUTPUT_ERROR();
|
|
}
|
|
// Skip over unsupported at rule, don't advance section
|
|
return SkipAtRule();
|
|
}
|
|
|
|
if (!(this->*parseFunc)(aAppendFunc, aData)) {
|
|
// Skip over invalid at rule, don't advance section
|
|
OUTPUT_ERROR();
|
|
return SkipAtRule();
|
|
}
|
|
|
|
mSection = newSection;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseCharsetRule(RuleAppendFunc aAppendFunc,
|
|
void* aData)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PECharsetRuleEOF);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (eCSSToken_String != mToken.mType) {
|
|
REPORT_UNEXPECTED_TOKEN(PECharsetRuleNotString);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsAutoString charset = mToken.mIdent;
|
|
|
|
if (!ExpectSymbol(';', PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsCOMPtr<nsICSSRule> rule;
|
|
NS_NewCSSCharsetRule(getter_AddRefs(rule), charset);
|
|
|
|
if (rule) {
|
|
(*aAppendFunc)(rule, aData);
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::GatherURL(nsString& aURL)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_String == mToken.mType) {
|
|
aURL = mToken.mIdent;
|
|
return PR_TRUE;
|
|
}
|
|
else if (eCSSToken_Function == mToken.mType &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("url") &&
|
|
ExpectSymbol('(', PR_FALSE) &&
|
|
GetURLToken() &&
|
|
(eCSSToken_String == mToken.mType ||
|
|
eCSSToken_URL == mToken.mType)) {
|
|
aURL = mToken.mIdent;
|
|
if (ExpectSymbol(')', PR_TRUE)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseMediaQuery(PRUnichar aStopSymbol,
|
|
nsMediaQuery **aQuery,
|
|
PRBool *aParsedSomething,
|
|
PRBool *aHitStop)
|
|
{
|
|
*aQuery = nsnull;
|
|
*aParsedSomething = PR_FALSE;
|
|
*aHitStop = PR_FALSE;
|
|
|
|
// "If the comma-separated list is the empty list it is assumed to
|
|
// specify the media query 'all'." (css3-mediaqueries, section
|
|
// "Media Queries")
|
|
if (!GetToken(PR_TRUE)) {
|
|
*aHitStop = PR_TRUE;
|
|
// expected termination by EOF
|
|
if (aStopSymbol == PRUnichar(0))
|
|
return PR_TRUE;
|
|
|
|
// unexpected termination by EOF
|
|
REPORT_UNEXPECTED_EOF(PEGatherMediaEOF);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
if (eCSSToken_Symbol == mToken.mType &&
|
|
mToken.mSymbol == aStopSymbol) {
|
|
*aHitStop = PR_TRUE;
|
|
UngetToken();
|
|
return PR_TRUE;
|
|
}
|
|
UngetToken();
|
|
|
|
*aParsedSomething = PR_TRUE;
|
|
|
|
nsAutoPtr<nsMediaQuery> query(new nsMediaQuery);
|
|
if (!query) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (ExpectSymbol('(', PR_TRUE)) {
|
|
// we got an expression without a media type
|
|
UngetToken(); // so ParseMediaQueryExpression can handle it
|
|
query->SetType(nsGkAtoms::all);
|
|
query->SetTypeOmitted();
|
|
// Just parse the first expression here.
|
|
if (!ParseMediaQueryExpression(query)) {
|
|
OUTPUT_ERROR();
|
|
query->SetHadUnknownExpression();
|
|
}
|
|
} else {
|
|
nsCOMPtr<nsIAtom> mediaType;
|
|
PRBool gotNotOrOnly = PR_FALSE;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEGatherMediaEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident != mToken.mType) {
|
|
REPORT_UNEXPECTED_TOKEN(PEGatherMediaNotIdent);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
// case insensitive from CSS - must be lower cased
|
|
ToLowerCase(mToken.mIdent);
|
|
mediaType = do_GetAtom(mToken.mIdent);
|
|
if (gotNotOrOnly ||
|
|
(mediaType != nsGkAtoms::_not && mediaType != nsGkAtoms::only))
|
|
break;
|
|
gotNotOrOnly = PR_TRUE;
|
|
if (mediaType == nsGkAtoms::_not)
|
|
query->SetNegated();
|
|
else
|
|
query->SetHasOnly();
|
|
}
|
|
query->SetType(mediaType);
|
|
}
|
|
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
*aHitStop = PR_TRUE;
|
|
// expected termination by EOF
|
|
if (aStopSymbol == PRUnichar(0))
|
|
break;
|
|
|
|
// unexpected termination by EOF
|
|
REPORT_UNEXPECTED_EOF(PEGatherMediaEOF);
|
|
break;
|
|
}
|
|
|
|
if (eCSSToken_Symbol == mToken.mType &&
|
|
mToken.mSymbol == aStopSymbol) {
|
|
*aHitStop = PR_TRUE;
|
|
UngetToken();
|
|
break;
|
|
}
|
|
if (eCSSToken_Symbol == mToken.mType && mToken.mSymbol == ',') {
|
|
// Done with the expressions for this query
|
|
break;
|
|
}
|
|
if (eCSSToken_Ident != mToken.mType ||
|
|
!mToken.mIdent.LowerCaseEqualsLiteral("and")) {
|
|
REPORT_UNEXPECTED_TOKEN(PEGatherMediaNotComma);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
if (!ParseMediaQueryExpression(query)) {
|
|
OUTPUT_ERROR();
|
|
query->SetHadUnknownExpression();
|
|
}
|
|
}
|
|
*aQuery = query.forget();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Returns false only when there is a low-level error in the scanner
|
|
// (out-of-memory).
|
|
PRBool
|
|
CSSParserImpl::GatherMedia(nsMediaList* aMedia,
|
|
PRUnichar aStopSymbol)
|
|
{
|
|
for (;;) {
|
|
nsAutoPtr<nsMediaQuery> query;
|
|
PRBool parsedSomething, hitStop;
|
|
if (!ParseMediaQuery(aStopSymbol, getter_Transfers(query),
|
|
&parsedSomething, &hitStop)) {
|
|
NS_ASSERTION(!hitStop, "should return true when hit stop");
|
|
if (NS_FAILED(mScanner.GetLowLevelError())) {
|
|
return PR_FALSE;
|
|
}
|
|
const PRUnichar stopChars[] =
|
|
{ PRUnichar(','), aStopSymbol /* may be null */, PRUnichar(0) };
|
|
SkipUntilOneOf(stopChars);
|
|
// Rely on SkipUntilOneOf leaving mToken around as the last token read.
|
|
if (mToken.mType == eCSSToken_Symbol && mToken.mSymbol == aStopSymbol) {
|
|
UngetToken();
|
|
hitStop = PR_TRUE;
|
|
}
|
|
}
|
|
if (parsedSomething) {
|
|
aMedia->SetNonEmpty();
|
|
}
|
|
if (query) {
|
|
nsresult rv = aMedia->AppendQuery(query);
|
|
if (NS_FAILED(rv)) {
|
|
mScanner.SetLowLevelError(rv);
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if (hitStop) {
|
|
break;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseMediaQueryExpression(nsMediaQuery* aQuery)
|
|
{
|
|
if (!ExpectSymbol('(', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMQExpectedExpressionStart);
|
|
return PR_FALSE;
|
|
}
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEMQExpressionEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident != mToken.mType) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMQExpectedFeatureName);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsMediaExpression *expr = aQuery->NewExpression();
|
|
if (!expr) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// case insensitive from CSS - must be lower cased
|
|
ToLowerCase(mToken.mIdent);
|
|
const PRUnichar *featureString;
|
|
if (StringBeginsWith(mToken.mIdent, NS_LITERAL_STRING("min-"))) {
|
|
expr->mRange = nsMediaExpression::eMin;
|
|
featureString = mToken.mIdent.get() + 4;
|
|
} else if (StringBeginsWith(mToken.mIdent, NS_LITERAL_STRING("max-"))) {
|
|
expr->mRange = nsMediaExpression::eMax;
|
|
featureString = mToken.mIdent.get() + 4;
|
|
} else {
|
|
expr->mRange = nsMediaExpression::eEqual;
|
|
featureString = mToken.mIdent.get();
|
|
}
|
|
|
|
nsCOMPtr<nsIAtom> mediaFeatureAtom = do_GetAtom(featureString);
|
|
const nsMediaFeature *feature = nsMediaFeatures::features;
|
|
for (; feature->mName; ++feature) {
|
|
if (*(feature->mName) == mediaFeatureAtom) {
|
|
break;
|
|
}
|
|
}
|
|
if (!feature->mName ||
|
|
(expr->mRange != nsMediaExpression::eEqual &&
|
|
feature->mRangeType != nsMediaFeature::eMinMaxAllowed)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMQExpectedFeatureName);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
expr->mFeature = feature;
|
|
|
|
if (!GetToken(PR_TRUE) || mToken.IsSymbol(')')) {
|
|
// Query expressions for any feature can be given without a value.
|
|
// However, min/max prefixes are not allowed.
|
|
if (expr->mRange != nsMediaExpression::eEqual) {
|
|
REPORT_UNEXPECTED(PEMQNoMinMaxWithoutValue);
|
|
return PR_FALSE;
|
|
}
|
|
expr->mValue.Reset();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
if (!mToken.IsSymbol(':')) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMQExpectedFeatureNameEnd);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool rv;
|
|
switch (feature->mValueType) {
|
|
case nsMediaFeature::eLength:
|
|
rv = ParseNonNegativeVariant(expr->mValue, VARIANT_LENGTH, nsnull);
|
|
break;
|
|
case nsMediaFeature::eInteger:
|
|
case nsMediaFeature::eBoolInteger:
|
|
rv = ParseNonNegativeVariant(expr->mValue, VARIANT_INTEGER, nsnull);
|
|
// Enforce extra restrictions for eBoolInteger
|
|
if (rv &&
|
|
feature->mValueType == nsMediaFeature::eBoolInteger &&
|
|
expr->mValue.GetIntValue() > 1)
|
|
rv = PR_FALSE;
|
|
break;
|
|
case nsMediaFeature::eIntRatio:
|
|
{
|
|
// Two integers separated by '/', with optional whitespace on
|
|
// either side of the '/'.
|
|
nsRefPtr<nsCSSValue::Array> a = nsCSSValue::Array::Create(2);
|
|
if (!a) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
expr->mValue.SetArrayValue(a, eCSSUnit_Array);
|
|
// We don't bother with ParseNonNegativeVariant since we have to
|
|
// check for != 0 as well; no need to worry about the UngetToken
|
|
// since we're throwing out up to the next ')' anyway.
|
|
rv = ParseVariant(a->Item(0), VARIANT_INTEGER, nsnull) &&
|
|
a->Item(0).GetIntValue() > 0 &&
|
|
ExpectSymbol('/', PR_TRUE) &&
|
|
ParseVariant(a->Item(1), VARIANT_INTEGER, nsnull) &&
|
|
a->Item(1).GetIntValue() > 0;
|
|
}
|
|
break;
|
|
case nsMediaFeature::eResolution:
|
|
rv = GetToken(PR_TRUE) && mToken.IsDimension() &&
|
|
mToken.mIntegerValid && mToken.mNumber > 0.0f;
|
|
if (rv) {
|
|
// No worries about whether unitless zero is allowed, since the
|
|
// value must be positive (and we checked that above).
|
|
NS_ASSERTION(!mToken.mIdent.IsEmpty(), "IsDimension lied");
|
|
if (mToken.mIdent.LowerCaseEqualsLiteral("dpi")) {
|
|
expr->mValue.SetFloatValue(mToken.mNumber, eCSSUnit_Inch);
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("dpcm")) {
|
|
expr->mValue.SetFloatValue(mToken.mNumber, eCSSUnit_Centimeter);
|
|
} else {
|
|
rv = PR_FALSE;
|
|
}
|
|
}
|
|
break;
|
|
case nsMediaFeature::eEnumerated:
|
|
rv = ParseVariant(expr->mValue, VARIANT_KEYWORD,
|
|
feature->mKeywordTable);
|
|
break;
|
|
}
|
|
if (!rv || !ExpectSymbol(')', PR_TRUE)) {
|
|
REPORT_UNEXPECTED(PEMQExpectedFeatureValue);
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Parse a CSS2 import rule: "@import STRING | URL [medium [, medium]]"
|
|
PRBool
|
|
CSSParserImpl::ParseImportRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
nsCOMPtr<nsMediaList> media = new nsMediaList();
|
|
if (!media) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsAutoString url;
|
|
if (!GatherURL(url)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEImportNotURI);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (!ExpectSymbol(';', PR_TRUE)) {
|
|
if (!GatherMedia(media, ';') ||
|
|
!ExpectSymbol(';', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEImportUnexpected);
|
|
// don't advance section, simply ignore invalid @import
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Safe to assert this, since we ensured that there is something
|
|
// other than the ';' coming after the @import's url() token.
|
|
NS_ASSERTION(media->Count() != 0, "media list must be nonempty");
|
|
}
|
|
|
|
ProcessImport(url, media, aAppendFunc, aData);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ProcessImport(const nsString& aURLSpec,
|
|
nsMediaList* aMedia,
|
|
RuleAppendFunc aAppendFunc,
|
|
void* aData)
|
|
{
|
|
nsCOMPtr<nsICSSImportRule> rule;
|
|
nsresult rv = NS_NewCSSImportRule(getter_AddRefs(rule), aURLSpec, aMedia);
|
|
if (NS_FAILED(rv)) {
|
|
mScanner.SetLowLevelError(rv);
|
|
return PR_FALSE;
|
|
}
|
|
(*aAppendFunc)(rule, aData);
|
|
|
|
if (mChildLoader) {
|
|
nsCOMPtr<nsIURI> url;
|
|
// XXX should pass a charset!
|
|
rv = NS_NewURI(getter_AddRefs(url), aURLSpec, nsnull, mBaseURL);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
// import url is bad
|
|
// XXX log this somewhere for easier web page debugging
|
|
mScanner.SetLowLevelError(rv);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
mChildLoader->LoadChildSheet(mSheet, url, aMedia, rule);
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Parse the {} part of an @media or @-moz-document rule.
|
|
PRBool
|
|
CSSParserImpl::ParseGroupRule(nsICSSGroupRule* aRule,
|
|
RuleAppendFunc aAppendFunc,
|
|
void* aData)
|
|
{
|
|
// XXXbz this could use better error reporting throughout the method
|
|
if (!ExpectSymbol('{', PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// push rule on stack, loop over children
|
|
if (!PushGroup(aRule)) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
nsCSSSection holdSection = mSection;
|
|
mSection = eCSSSection_General;
|
|
|
|
for (;;) {
|
|
// Get next non-whitespace token
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEGroupRuleEOF);
|
|
break;
|
|
}
|
|
if (mToken.IsSymbol('}')) { // done!
|
|
UngetToken();
|
|
break;
|
|
}
|
|
if (eCSSToken_AtKeyword == mToken.mType) {
|
|
SkipAtRule(); // group rules cannot contain @rules
|
|
continue;
|
|
}
|
|
UngetToken();
|
|
ParseRuleSet(AppendRuleToSheet, this);
|
|
}
|
|
PopGroup();
|
|
|
|
if (!ExpectSymbol('}', PR_TRUE)) {
|
|
mSection = holdSection;
|
|
return PR_FALSE;
|
|
}
|
|
(*aAppendFunc)(aRule, aData);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Parse a CSS2 media rule: "@media medium [, medium] { ... }"
|
|
PRBool
|
|
CSSParserImpl::ParseMediaRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
nsCOMPtr<nsMediaList> media = new nsMediaList();
|
|
if (!media) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (GatherMedia(media, '{')) {
|
|
// XXXbz this could use better error reporting throughout the method
|
|
nsRefPtr<nsCSSMediaRule> rule(new nsCSSMediaRule());
|
|
// Append first, so when we do SetMedia() the rule
|
|
// knows what its stylesheet is.
|
|
if (rule && ParseGroupRule(rule, aAppendFunc, aData)) {
|
|
rule->SetMedia(media);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Parse a @-moz-document rule. This is like an @media rule, but instead
|
|
// of a medium it has a nonempty list of items where each item is either
|
|
// url(), url-prefix(), or domain().
|
|
PRBool
|
|
CSSParserImpl::ParseMozDocumentRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
nsCSSDocumentRule::URL *urls = nsnull;
|
|
nsCSSDocumentRule::URL **next = &urls;
|
|
do {
|
|
if (!GetToken(PR_TRUE) ||
|
|
eCSSToken_Function != mToken.mType ||
|
|
!(mToken.mIdent.LowerCaseEqualsLiteral("url") ||
|
|
mToken.mIdent.LowerCaseEqualsLiteral("url-prefix") ||
|
|
mToken.mIdent.LowerCaseEqualsLiteral("domain"))) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMozDocRuleBadFunc);
|
|
delete urls;
|
|
return PR_FALSE;
|
|
}
|
|
nsCSSDocumentRule::URL *cur = *next = new nsCSSDocumentRule::URL;
|
|
if (!cur) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
delete urls;
|
|
return PR_FALSE;
|
|
}
|
|
next = &cur->next;
|
|
if (mToken.mIdent.LowerCaseEqualsLiteral("url")) {
|
|
cur->func = nsCSSDocumentRule::eURL;
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("url-prefix")) {
|
|
cur->func = nsCSSDocumentRule::eURLPrefix;
|
|
} else if (mToken.mIdent.LowerCaseEqualsLiteral("domain")) {
|
|
cur->func = nsCSSDocumentRule::eDomain;
|
|
}
|
|
|
|
if (!ExpectSymbol('(', PR_FALSE) ||
|
|
!GetURLToken() ||
|
|
(eCSSToken_String != mToken.mType &&
|
|
eCSSToken_URL != mToken.mType)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEMozDocRuleNotURI);
|
|
delete urls;
|
|
return PR_FALSE;
|
|
}
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
delete urls;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// We could try to make the URL (as long as it's not domain())
|
|
// canonical and absolute with NS_NewURI and GetSpec, but I'm
|
|
// inclined to think we shouldn't.
|
|
CopyUTF16toUTF8(mToken.mIdent, cur->url);
|
|
} while (ExpectSymbol(',', PR_TRUE));
|
|
|
|
nsRefPtr<nsCSSDocumentRule> rule(new nsCSSDocumentRule());
|
|
if (!rule) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
delete urls;
|
|
return PR_FALSE;
|
|
}
|
|
rule->SetURLs(urls);
|
|
|
|
return ParseGroupRule(rule, aAppendFunc, aData);
|
|
}
|
|
|
|
// Parse a CSS3 namespace rule: "@namespace [prefix] STRING | URL;"
|
|
PRBool
|
|
CSSParserImpl::ParseNameSpaceRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEAtNSPrefixEOF);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsAutoString prefix;
|
|
nsAutoString url;
|
|
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
prefix = mToken.mIdent;
|
|
// user-specified identifiers are case-sensitive (bug 416106)
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEAtNSURIEOF);
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
|
|
if (eCSSToken_String == mToken.mType) {
|
|
url = mToken.mIdent;
|
|
if (ExpectSymbol(';', PR_TRUE)) {
|
|
ProcessNameSpace(prefix, url, aAppendFunc, aData);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
else if ((eCSSToken_Function == mToken.mType) &&
|
|
(mToken.mIdent.LowerCaseEqualsLiteral("url"))) {
|
|
if (ExpectSymbol('(', PR_FALSE)) {
|
|
if (GetURLToken()) {
|
|
if ((eCSSToken_String == mToken.mType) || (eCSSToken_URL == mToken.mType)) {
|
|
url = mToken.mIdent;
|
|
if (ExpectSymbol(')', PR_TRUE)) {
|
|
if (ExpectSymbol(';', PR_TRUE)) {
|
|
ProcessNameSpace(prefix, url, aAppendFunc, aData);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
REPORT_UNEXPECTED_TOKEN(PEAtNSUnexpected);
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ProcessNameSpace(const nsString& aPrefix,
|
|
const nsString& aURLSpec,
|
|
RuleAppendFunc aAppendFunc,
|
|
void* aData)
|
|
{
|
|
PRBool result = PR_FALSE;
|
|
|
|
nsCOMPtr<nsICSSNameSpaceRule> rule;
|
|
nsCOMPtr<nsIAtom> prefix;
|
|
|
|
if (!aPrefix.IsEmpty()) {
|
|
prefix = do_GetAtom(aPrefix);
|
|
}
|
|
|
|
NS_NewCSSNameSpaceRule(getter_AddRefs(rule), prefix, aURLSpec);
|
|
if (rule) {
|
|
(*aAppendFunc)(rule, aData);
|
|
|
|
// If this was the first namespace rule encountered, it will trigger
|
|
// creation of a namespace map.
|
|
if (!mNameSpaceMap) {
|
|
mNameSpaceMap = mSheet->GetNameSpaceMap();
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// font-face-rule: '@font-face' '{' font-description '}'
|
|
// font-description: font-descriptor+
|
|
PRBool
|
|
CSSParserImpl::ParseFontFaceRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
if (!ExpectSymbol('{', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEBadFontBlockStart);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsRefPtr<nsCSSFontFaceRule> rule(new nsCSSFontFaceRule());
|
|
if (!rule) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEFontFaceEOF);
|
|
break;
|
|
}
|
|
if (mToken.IsSymbol('}')) { // done!
|
|
UngetToken();
|
|
break;
|
|
}
|
|
|
|
// ignore extra semicolons
|
|
if (mToken.IsSymbol(';'))
|
|
continue;
|
|
|
|
if (!ParseFontDescriptor(rule)) {
|
|
REPORT_UNEXPECTED(PEDeclSkipped);
|
|
OUTPUT_ERROR();
|
|
if (!SkipDeclaration(PR_TRUE))
|
|
break;
|
|
}
|
|
}
|
|
if (!ExpectSymbol('}', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEBadFontBlockEnd);
|
|
return PR_FALSE;
|
|
}
|
|
(*aAppendFunc)(rule, aData);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// font-descriptor: font-family-desc
|
|
// | font-style-desc
|
|
// | font-weight-desc
|
|
// | font-stretch-desc
|
|
// | font-src-desc
|
|
// | unicode-range-desc
|
|
//
|
|
// All font-*-desc productions follow the pattern
|
|
// IDENT ':' value ';'
|
|
//
|
|
// On entry to this function, mToken is the IDENT.
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFontDescriptor(nsCSSFontFaceRule* aRule)
|
|
{
|
|
if (eCSSToken_Ident != mToken.mType) {
|
|
REPORT_UNEXPECTED_TOKEN(PEFontDescExpected);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsString descName = mToken.mIdent;
|
|
if (!ExpectSymbol(':', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEParseDeclarationNoColon);
|
|
OUTPUT_ERROR();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(descName);
|
|
nsCSSValue value;
|
|
|
|
if (descID == eCSSFontDesc_UNKNOWN) {
|
|
if (NonMozillaVendorIdentifier(descName)) {
|
|
// silently skip other vendors' extensions
|
|
SkipDeclaration(PR_TRUE);
|
|
return PR_TRUE;
|
|
} else {
|
|
const PRUnichar *params[] = {
|
|
descName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEUnknownFontDesc, params);
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
|
|
if (!ParseFontDescriptorValue(descID, value)) {
|
|
const PRUnichar *params[] = {
|
|
descName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEValueParsingError, params);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
aRule->SetDesc(descID, value);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ParsePageRule(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
// XXX not yet implemented
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::SkipUntil(PRUnichar aStopSymbol)
|
|
{
|
|
nsCSSToken* tk = &mToken;
|
|
nsAutoTArray<PRUnichar, 16> stack;
|
|
stack.AppendElement(aStopSymbol);
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
break;
|
|
}
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
PRUnichar symbol = tk->mSymbol;
|
|
PRUint32 stackTopIndex = stack.Length() - 1;
|
|
if (symbol == stack.ElementAt(stackTopIndex)) {
|
|
stack.RemoveElementAt(stackTopIndex);
|
|
if (stackTopIndex == 0) {
|
|
break;
|
|
}
|
|
} else if ('{' == symbol) {
|
|
// In this case and the two below, just handle out-of-memory by
|
|
// parsing incorrectly. It's highly unlikely we're dealing with
|
|
// a legitimate style sheet anyway.
|
|
stack.AppendElement('}');
|
|
} else if ('[' == symbol) {
|
|
stack.AppendElement(']');
|
|
} else if ('(' == symbol) {
|
|
stack.AppendElement(')');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::SkipUntilOneOf(const PRUnichar* aStopSymbolChars)
|
|
{
|
|
nsCSSToken* tk = &mToken;
|
|
nsDependentString stopSymbolChars(aStopSymbolChars);
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
break;
|
|
}
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
PRUnichar symbol = tk->mSymbol;
|
|
if (stopSymbolChars.FindChar(symbol) != -1) {
|
|
break;
|
|
} else if ('{' == symbol) {
|
|
SkipUntil('}');
|
|
} else if ('[' == symbol) {
|
|
SkipUntil(']');
|
|
} else if ('(' == symbol) {
|
|
SkipUntil(')');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::GetNonCloseParenToken(PRBool aSkipWS)
|
|
{
|
|
if (!GetToken(aSkipWS))
|
|
return PR_FALSE;
|
|
if (mToken.mType == eCSSToken_Symbol && mToken.mSymbol == ')') {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::SkipDeclaration(PRBool aCheckForBraces)
|
|
{
|
|
nsCSSToken* tk = &mToken;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
if (aCheckForBraces) {
|
|
REPORT_UNEXPECTED_EOF(PESkipDeclBraceEOF);
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
PRUnichar symbol = tk->mSymbol;
|
|
if (';' == symbol) {
|
|
break;
|
|
}
|
|
if (aCheckForBraces) {
|
|
if ('}' == symbol) {
|
|
UngetToken();
|
|
break;
|
|
}
|
|
}
|
|
if ('{' == symbol) {
|
|
SkipUntil('}');
|
|
} else if ('(' == symbol) {
|
|
SkipUntil(')');
|
|
} else if ('[' == symbol) {
|
|
SkipUntil(']');
|
|
}
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::SkipRuleSet()
|
|
{
|
|
nsCSSToken* tk = &mToken;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PESkipRSBraceEOF);
|
|
break;
|
|
}
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
PRUnichar symbol = tk->mSymbol;
|
|
if ('{' == symbol) {
|
|
SkipUntil('}');
|
|
break;
|
|
}
|
|
if ('(' == symbol) {
|
|
SkipUntil(')');
|
|
} else if ('[' == symbol) {
|
|
SkipUntil(']');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::PushGroup(nsICSSGroupRule* aRule)
|
|
{
|
|
if (mGroupStack.AppendObject(aRule))
|
|
return PR_TRUE;
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::PopGroup(void)
|
|
{
|
|
PRInt32 count = mGroupStack.Count();
|
|
if (0 < count) {
|
|
mGroupStack.RemoveObjectAt(count - 1);
|
|
}
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::AppendRule(nsICSSRule* aRule)
|
|
{
|
|
PRInt32 count = mGroupStack.Count();
|
|
if (0 < count) {
|
|
mGroupStack[count - 1]->AppendStyleRule(aRule);
|
|
}
|
|
else {
|
|
mSheet->AppendStyleRule(aRule);
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseRuleSet(RuleAppendFunc aAppendFunc, void* aData)
|
|
{
|
|
// First get the list of selectors for the rule
|
|
nsCSSSelectorList* slist = nsnull;
|
|
PRUint32 linenum = mScanner.GetLineNumber();
|
|
if (! ParseSelectorList(slist, PR_TRUE)) {
|
|
REPORT_UNEXPECTED(PEBadSelectorRSIgnored);
|
|
OUTPUT_ERROR();
|
|
SkipRuleSet();
|
|
return PR_FALSE;
|
|
}
|
|
NS_ASSERTION(nsnull != slist, "null selector list");
|
|
CLEAR_ERROR();
|
|
|
|
// Next parse the declaration block
|
|
nsCSSDeclaration* declaration = ParseDeclarationBlock(PR_TRUE);
|
|
if (nsnull == declaration) {
|
|
// XXX skip something here
|
|
delete slist;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
#if 0
|
|
slist->Dump();
|
|
fputs("{\n", stdout);
|
|
declaration->List();
|
|
fputs("}\n", stdout);
|
|
#endif
|
|
|
|
// Translate the selector list and declaration block into style data
|
|
|
|
nsCOMPtr<nsICSSStyleRule> rule;
|
|
NS_NewCSSStyleRule(getter_AddRefs(rule), slist, declaration);
|
|
if (!rule) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
delete slist;
|
|
return PR_FALSE;
|
|
}
|
|
rule->SetLineNumber(linenum);
|
|
(*aAppendFunc)(rule, aData);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseSelectorList(nsCSSSelectorList*& aListHead,
|
|
PRBool aTerminateAtBrace)
|
|
{
|
|
nsCSSSelectorList* list = nsnull;
|
|
if (! ParseSelectorGroup(list)) {
|
|
// must have at least one selector group
|
|
aListHead = nsnull;
|
|
return PR_FALSE;
|
|
}
|
|
NS_ASSERTION(nsnull != list, "no selector list");
|
|
aListHead = list;
|
|
|
|
// After that there must either be a "," or a "{" (the latter if
|
|
// aTerminateAtBrace is true)
|
|
nsCSSToken* tk = &mToken;
|
|
for (;;) {
|
|
if (! GetToken(PR_TRUE)) {
|
|
if (!aTerminateAtBrace) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
REPORT_UNEXPECTED_EOF(PESelectorListExtraEOF);
|
|
break;
|
|
}
|
|
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
if (',' == tk->mSymbol) {
|
|
nsCSSSelectorList* newList = nsnull;
|
|
// Another selector group must follow
|
|
if (! ParseSelectorGroup(newList)) {
|
|
break;
|
|
}
|
|
// add new list to the end of the selector list
|
|
list->mNext = newList;
|
|
list = newList;
|
|
continue;
|
|
} else if ('{' == tk->mSymbol && aTerminateAtBrace) {
|
|
UngetToken();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
REPORT_UNEXPECTED_TOKEN(PESelectorListExtra);
|
|
UngetToken();
|
|
break;
|
|
}
|
|
|
|
delete aListHead;
|
|
aListHead = nsnull;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
static PRBool IsSinglePseudoClass(const nsCSSSelector& aSelector)
|
|
{
|
|
return PRBool((aSelector.mNameSpace == kNameSpaceID_Unknown) &&
|
|
(aSelector.mTag == nsnull) &&
|
|
(aSelector.mIDList == nsnull) &&
|
|
(aSelector.mClassList == nsnull) &&
|
|
(aSelector.mAttrList == nsnull) &&
|
|
(aSelector.mNegations == nsnull) &&
|
|
(aSelector.mPseudoClassList != nsnull) &&
|
|
(aSelector.mPseudoClassList->mNext == nsnull));
|
|
}
|
|
|
|
#ifdef MOZ_XUL
|
|
static PRBool IsTreePseudoElement(nsIAtom* aPseudo)
|
|
{
|
|
const char* str;
|
|
aPseudo->GetUTF8String(&str);
|
|
static const char moz_tree[] = ":-moz-tree-";
|
|
return nsCRT::strncmp(str, moz_tree, PRInt32(sizeof(moz_tree)-1)) == 0;
|
|
}
|
|
#endif
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseSelectorGroup(nsCSSSelectorList*& aList)
|
|
{
|
|
nsAutoPtr<nsCSSSelectorList> list;
|
|
PRUnichar combinator = PRUnichar(0);
|
|
PRInt32 weight = 0;
|
|
PRBool havePseudoElement = PR_FALSE;
|
|
PRBool done = PR_FALSE;
|
|
while (!done) {
|
|
nsAutoPtr<nsCSSSelector> newSelector(new nsCSSSelector());
|
|
if (!newSelector) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
nsSelectorParsingStatus parsingStatus =
|
|
ParseSelector(*newSelector);
|
|
if (parsingStatus == eSelectorParsingStatus_Empty) {
|
|
if (!list) {
|
|
REPORT_UNEXPECTED(PESelectorGroupNoSelector);
|
|
}
|
|
break;
|
|
}
|
|
if (parsingStatus == eSelectorParsingStatus_Error) {
|
|
list = nsnull;
|
|
break;
|
|
}
|
|
if (nsnull == list) {
|
|
list = new nsCSSSelectorList();
|
|
if (nsnull == list) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
list->AddSelector(newSelector);
|
|
nsCSSSelector* listSel = list->mSelectors;
|
|
|
|
// pull out pseudo elements here
|
|
nsPseudoClassList* prevList = nsnull;
|
|
nsPseudoClassList* pseudoClassList = listSel->mPseudoClassList;
|
|
while (nsnull != pseudoClassList) {
|
|
if (! nsCSSPseudoClasses::IsPseudoClass(pseudoClassList->mAtom)) {
|
|
havePseudoElement = PR_TRUE;
|
|
if (IsSinglePseudoClass(*listSel)) { // convert to pseudo element selector
|
|
nsIAtom* pseudoElement = pseudoClassList->mAtom; // steal ref count
|
|
pseudoClassList->mAtom = nsnull;
|
|
listSel->Reset();
|
|
if (listSel->mNext) {// more to the selector
|
|
listSel->mOperator = PRUnichar('>');
|
|
nsAutoPtr<nsCSSSelector> empty(new nsCSSSelector());
|
|
if (!empty) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
list->AddSelector(empty); // leave a blank (universal) selector in the middle
|
|
listSel = list->mSelectors; // use the new one for the pseudo
|
|
}
|
|
listSel->mTag = pseudoElement;
|
|
}
|
|
else { // append new pseudo element selector
|
|
nsAutoPtr<nsCSSSelector> pseudoTagSelector(new nsCSSSelector());
|
|
if (!pseudoTagSelector) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
pseudoTagSelector->mTag = pseudoClassList->mAtom; // steal ref count
|
|
#ifdef MOZ_XUL
|
|
if (IsTreePseudoElement(pseudoTagSelector->mTag)) {
|
|
// Take the remaining "pseudoclasses" that we parsed
|
|
// inside the tree pseudoelement's ()-list, and
|
|
// make our new selector have these pseudoclasses
|
|
// in its pseudoclass list.
|
|
pseudoTagSelector->mPseudoClassList = pseudoClassList->mNext;
|
|
pseudoClassList->mNext = nsnull;
|
|
}
|
|
#endif
|
|
list->AddSelector(pseudoTagSelector);
|
|
pseudoClassList->mAtom = nsnull;
|
|
listSel->mOperator = PRUnichar('>');
|
|
if (nsnull == prevList) { // delete list entry
|
|
listSel->mPseudoClassList = pseudoClassList->mNext;
|
|
}
|
|
else {
|
|
prevList->mNext = pseudoClassList->mNext;
|
|
}
|
|
pseudoClassList->mNext = nsnull;
|
|
delete pseudoClassList;
|
|
weight += listSel->CalcWeight(); // capture weight from remainder
|
|
}
|
|
break; // only one pseudo element per selector
|
|
}
|
|
prevList = pseudoClassList;
|
|
pseudoClassList = pseudoClassList->mNext;
|
|
}
|
|
|
|
combinator = PRUnichar(0);
|
|
if (!GetToken(PR_FALSE)) {
|
|
break;
|
|
}
|
|
|
|
// Assume we are done unless we find a combinator here.
|
|
done = PR_TRUE;
|
|
if (eCSSToken_WhiteSpace == mToken.mType) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
break;
|
|
}
|
|
done = PR_FALSE;
|
|
}
|
|
|
|
if (eCSSToken_Symbol == mToken.mType &&
|
|
('+' == mToken.mSymbol ||
|
|
'>' == mToken.mSymbol ||
|
|
'~' == mToken.mSymbol)) {
|
|
done = PR_FALSE;
|
|
combinator = mToken.mSymbol;
|
|
list->mSelectors->SetOperator(combinator);
|
|
}
|
|
else {
|
|
if (eCSSToken_Symbol == mToken.mType &&
|
|
('{' == mToken.mSymbol ||
|
|
',' == mToken.mSymbol)) {
|
|
// End of this selector group
|
|
done = PR_TRUE;
|
|
}
|
|
UngetToken(); // give it back to selector if we're not done, or make sure
|
|
// we see it as the end of the selector if we are.
|
|
}
|
|
|
|
if (havePseudoElement) {
|
|
break;
|
|
}
|
|
else {
|
|
weight += listSel->CalcWeight();
|
|
}
|
|
}
|
|
|
|
if (PRUnichar(0) != combinator) { // no dangling combinators
|
|
list = nsnull;
|
|
// This should report the problematic combinator
|
|
REPORT_UNEXPECTED(PESelectorGroupExtraCombinator);
|
|
}
|
|
aList = list.forget();
|
|
if (aList) {
|
|
aList->mWeight = weight;
|
|
}
|
|
return PRBool(nsnull != aList);
|
|
}
|
|
|
|
#define SEL_MASK_NSPACE 0x01
|
|
#define SEL_MASK_ELEM 0x02
|
|
#define SEL_MASK_ID 0x04
|
|
#define SEL_MASK_CLASS 0x08
|
|
#define SEL_MASK_ATTRIB 0x10
|
|
#define SEL_MASK_PCLASS 0x20
|
|
#define SEL_MASK_PELEM 0x40
|
|
|
|
//
|
|
// Parses an ID selector #name
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseIDSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector)
|
|
{
|
|
NS_ASSERTION(!mToken.mIdent.IsEmpty(),
|
|
"Empty mIdent in eCSSToken_ID token?");
|
|
aDataMask |= SEL_MASK_ID;
|
|
aSelector.AddID(mToken.mIdent);
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parses a class selector .name
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseClassSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector)
|
|
{
|
|
if (! GetToken(PR_FALSE)) { // get ident
|
|
REPORT_UNEXPECTED_EOF(PEClassSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident != mToken.mType) { // malformed selector
|
|
REPORT_UNEXPECTED_TOKEN(PEClassSelNotIdent);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
aDataMask |= SEL_MASK_CLASS;
|
|
|
|
aSelector.AddClass(mToken.mIdent);
|
|
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parse a type element selector or a universal selector
|
|
// namespace|type or namespace|* or *|* or *
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseTypeOrUniversalSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector,
|
|
PRBool aIsNegated)
|
|
{
|
|
nsAutoString buffer;
|
|
if (mToken.IsSymbol('*')) { // universal element selector, or universal namespace
|
|
if (ExpectSymbol('|', PR_FALSE)) { // was namespace
|
|
aDataMask |= SEL_MASK_NSPACE;
|
|
aSelector.SetNameSpace(kNameSpaceID_Unknown); // namespace wildcard
|
|
|
|
if (! GetToken(PR_FALSE)) {
|
|
REPORT_UNEXPECTED_EOF(PETypeSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // element name
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
if (mCaseSensitive) {
|
|
aSelector.SetTag(mToken.mIdent);
|
|
}
|
|
else {
|
|
ToLowerCase(mToken.mIdent, buffer);
|
|
aSelector.SetTag(buffer);
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('*')) { // universal selector
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
// don't set tag
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PETypeSelNotType);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else { // was universal element selector
|
|
SetDefaultNamespaceOnSelector(aSelector);
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
// don't set any tag in the selector
|
|
}
|
|
if (! GetToken(PR_FALSE)) { // premature eof is ok (here!)
|
|
return eSelectorParsingStatus_Done;
|
|
}
|
|
}
|
|
else if (eCSSToken_Ident == mToken.mType) { // element name or namespace name
|
|
buffer = mToken.mIdent; // hang on to ident
|
|
|
|
if (ExpectSymbol('|', PR_FALSE)) { // was namespace
|
|
aDataMask |= SEL_MASK_NSPACE;
|
|
PRInt32 nameSpaceID;
|
|
if (!GetNamespaceIdForPrefix(buffer, &nameSpaceID)) {
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
aSelector.SetNameSpace(nameSpaceID);
|
|
|
|
if (! GetToken(PR_FALSE)) {
|
|
REPORT_UNEXPECTED_EOF(PETypeSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // element name
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
if (mCaseSensitive) {
|
|
aSelector.SetTag(mToken.mIdent);
|
|
}
|
|
else {
|
|
ToLowerCase(mToken.mIdent, buffer);
|
|
aSelector.SetTag(buffer);
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('*')) { // universal selector
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
// don't set tag
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PETypeSelNotType);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else { // was element name
|
|
SetDefaultNamespaceOnSelector(aSelector);
|
|
if (mCaseSensitive) {
|
|
aSelector.SetTag(buffer);
|
|
}
|
|
else {
|
|
ToLowerCase(buffer);
|
|
aSelector.SetTag(buffer);
|
|
}
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
}
|
|
if (! GetToken(PR_FALSE)) { // premature eof is ok (here!)
|
|
return eSelectorParsingStatus_Done;
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('|')) { // No namespace
|
|
aDataMask |= SEL_MASK_NSPACE;
|
|
aSelector.SetNameSpace(kNameSpaceID_None); // explicit NO namespace
|
|
|
|
// get mandatory tag
|
|
if (! GetToken(PR_FALSE)) {
|
|
REPORT_UNEXPECTED_EOF(PETypeSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // element name
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
if (mCaseSensitive) {
|
|
aSelector.SetTag(mToken.mIdent);
|
|
}
|
|
else {
|
|
ToLowerCase(mToken.mIdent, buffer);
|
|
aSelector.SetTag(buffer);
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('*')) { // universal selector
|
|
aDataMask |= SEL_MASK_ELEM;
|
|
// don't set tag
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PETypeSelNotType);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (! GetToken(PR_FALSE)) { // premature eof is ok (here!)
|
|
return eSelectorParsingStatus_Done;
|
|
}
|
|
}
|
|
else {
|
|
SetDefaultNamespaceOnSelector(aSelector);
|
|
}
|
|
|
|
if (aIsNegated) {
|
|
// restore last token read in case of a negated type selector
|
|
UngetToken();
|
|
}
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parse attribute selectors [attr], [attr=value], [attr|=value],
|
|
// [attr~=value], [attr^=value], [attr$=value] and [attr*=value]
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseAttributeSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector)
|
|
{
|
|
if (! GetToken(PR_TRUE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
PRInt32 nameSpaceID = kNameSpaceID_None;
|
|
nsAutoString attr;
|
|
if (mToken.IsSymbol('*')) { // wildcard namespace
|
|
nameSpaceID = kNameSpaceID_Unknown;
|
|
if (ExpectSymbol('|', PR_FALSE)) {
|
|
if (! GetToken(PR_FALSE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // attr name
|
|
attr = mToken.mIdent;
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttSelNoBar);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('|')) { // NO namespace
|
|
if (! GetToken(PR_FALSE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // attr name
|
|
attr = mToken.mIdent;
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
|
|
attr = mToken.mIdent; // hang on to it
|
|
if (ExpectSymbol('|', PR_FALSE)) { // was a namespace
|
|
if (!GetNamespaceIdForPrefix(attr, &nameSpaceID)) {
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (! GetToken(PR_FALSE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) { // attr name
|
|
attr = mToken.mIdent;
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
}
|
|
else { // malformed
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameOrNamespaceExpected);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (! mCaseSensitive) {
|
|
ToLowerCase(attr);
|
|
}
|
|
if (! GetToken(PR_TRUE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttSelInnerEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if ((eCSSToken_Symbol == mToken.mType) ||
|
|
(eCSSToken_Includes == mToken.mType) ||
|
|
(eCSSToken_Dashmatch == mToken.mType) ||
|
|
(eCSSToken_Beginsmatch == mToken.mType) ||
|
|
(eCSSToken_Endsmatch == mToken.mType) ||
|
|
(eCSSToken_Containsmatch == mToken.mType)) {
|
|
PRUint8 func;
|
|
if (eCSSToken_Includes == mToken.mType) {
|
|
func = NS_ATTR_FUNC_INCLUDES;
|
|
}
|
|
else if (eCSSToken_Dashmatch == mToken.mType) {
|
|
func = NS_ATTR_FUNC_DASHMATCH;
|
|
}
|
|
else if (eCSSToken_Beginsmatch == mToken.mType) {
|
|
func = NS_ATTR_FUNC_BEGINSMATCH;
|
|
}
|
|
else if (eCSSToken_Endsmatch == mToken.mType) {
|
|
func = NS_ATTR_FUNC_ENDSMATCH;
|
|
}
|
|
else if (eCSSToken_Containsmatch == mToken.mType) {
|
|
func = NS_ATTR_FUNC_CONTAINSMATCH;
|
|
}
|
|
else if (']' == mToken.mSymbol) {
|
|
aDataMask |= SEL_MASK_ATTRIB;
|
|
aSelector.AddAttribute(nameSpaceID, attr);
|
|
func = NS_ATTR_FUNC_SET;
|
|
}
|
|
else if ('=' == mToken.mSymbol) {
|
|
func = NS_ATTR_FUNC_EQUALS;
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttSelUnexpected);
|
|
UngetToken(); // bad function
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (NS_ATTR_FUNC_SET != func) { // get value
|
|
if (! GetToken(PR_TRUE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttSelValueEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if ((eCSSToken_Ident == mToken.mType) || (eCSSToken_String == mToken.mType)) {
|
|
nsAutoString value(mToken.mIdent);
|
|
if (! GetToken(PR_TRUE)) { // premature EOF
|
|
REPORT_UNEXPECTED_EOF(PEAttSelCloseEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (mToken.IsSymbol(']')) {
|
|
PRBool isCaseSensitive = PR_TRUE;
|
|
|
|
// If we're parsing a style sheet for an HTML document, and
|
|
// the attribute selector is for a non-namespaced attribute,
|
|
// then check to see if it's one of the known attributes whose
|
|
// VALUE is case-insensitive.
|
|
if (!mCaseSensitive && nameSpaceID == kNameSpaceID_None) {
|
|
static const char* caseInsensitiveHTMLAttribute[] = {
|
|
// list based on http://www.w3.org/TR/html4/
|
|
"lang",
|
|
"dir",
|
|
"http-equiv",
|
|
"text",
|
|
"link",
|
|
"vlink",
|
|
"alink",
|
|
"compact",
|
|
"align",
|
|
"frame",
|
|
"rules",
|
|
"valign",
|
|
"scope",
|
|
"axis",
|
|
"nowrap",
|
|
"hreflang",
|
|
"rel",
|
|
"rev",
|
|
"charset",
|
|
"codetype",
|
|
"declare",
|
|
"valuetype",
|
|
"shape",
|
|
"nohref",
|
|
"media",
|
|
"bgcolor",
|
|
"clear",
|
|
"color",
|
|
"face",
|
|
"noshade",
|
|
"noresize",
|
|
"scrolling",
|
|
"target",
|
|
"method",
|
|
"enctype",
|
|
"accept-charset",
|
|
"accept",
|
|
"checked",
|
|
"multiple",
|
|
"selected",
|
|
"disabled",
|
|
"readonly",
|
|
"language",
|
|
"defer",
|
|
"type",
|
|
// additional attributes not in HTML4
|
|
"direction", // marquee
|
|
nsnull
|
|
};
|
|
short i = 0;
|
|
const char* htmlAttr;
|
|
while ((htmlAttr = caseInsensitiveHTMLAttribute[i++])) {
|
|
if (attr.EqualsIgnoreCase(htmlAttr)) {
|
|
isCaseSensitive = PR_FALSE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
aDataMask |= SEL_MASK_ATTRIB;
|
|
aSelector.AddAttribute(nameSpaceID, attr, func, value, isCaseSensitive);
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttSelNoClose);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttSelBadValue);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttSelUnexpected);
|
|
UngetToken(); // bad dog, no biscut!
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parse pseudo-classes and pseudo-elements
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParsePseudoSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector,
|
|
PRBool aIsNegated)
|
|
{
|
|
if (! GetToken(PR_FALSE)) { // premature eof
|
|
REPORT_UNEXPECTED_EOF(PEPseudoSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// First, find out whether we are parsing a CSS3 pseudo-element
|
|
PRBool parsingPseudoElement = PR_FALSE;
|
|
if (mToken.IsSymbol(':')) {
|
|
parsingPseudoElement = PR_TRUE;
|
|
if (! GetToken(PR_FALSE)) { // premature eof
|
|
REPORT_UNEXPECTED_EOF(PEPseudoSelEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
|
|
// Do some sanity-checking on the token
|
|
if (eCSSToken_Ident != mToken.mType && eCSSToken_Function != mToken.mType) {
|
|
// malformed selector
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelBadName);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// OK, now we know we have an mIdent. Atomize it. All the atoms, for
|
|
// pseudo-classes as well as pseudo-elements, start with a single ':'.
|
|
nsAutoString buffer;
|
|
buffer.Append(PRUnichar(':'));
|
|
buffer.Append(mToken.mIdent);
|
|
ToLowerCase(buffer);
|
|
nsCOMPtr<nsIAtom> pseudo = do_GetAtom(buffer);
|
|
|
|
// stash away some info about this pseudo so we only have to get it once.
|
|
PRBool isTreePseudo = PR_FALSE;
|
|
#ifdef MOZ_XUL
|
|
isTreePseudo = IsTreePseudoElement(pseudo);
|
|
// If a tree pseudo-element is using the function syntax, it will
|
|
// get isTree set here and will pass the check below that only
|
|
// allows functions if they are in our list of things allowed to be
|
|
// functions. If it is _not_ using the function syntax, isTree will
|
|
// be false, and it will still pass that check. So the tree
|
|
// pseudo-elements are allowed to be either functions or not, as
|
|
// desired.
|
|
PRBool isTree = (eCSSToken_Function == mToken.mType) && isTreePseudo;
|
|
#endif
|
|
PRBool isPseudoElement = nsCSSPseudoElements::IsPseudoElement(pseudo);
|
|
// anonymous boxes are only allowed if they're the tree boxes or we have
|
|
// enabled unsafe rules
|
|
PRBool isAnonBox = nsCSSAnonBoxes::IsAnonBox(pseudo) &&
|
|
(mUnsafeRulesEnabled || isTreePseudo);
|
|
PRBool isPseudoClass = nsCSSPseudoClasses::IsPseudoClass(pseudo);
|
|
|
|
if (!isPseudoClass && !isPseudoElement && !isAnonBox) {
|
|
// Not a pseudo-class, not a pseudo-element.... forget it
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelUnknown);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// If it's a function token, it better be on our "ok" list, and if the name
|
|
// is that of a function pseudo it better be a function token
|
|
if ((eCSSToken_Function == mToken.mType) !=
|
|
(
|
|
#ifdef MOZ_XUL
|
|
isTree ||
|
|
#endif
|
|
nsCSSPseudoClasses::notPseudo == pseudo ||
|
|
nsCSSPseudoClasses::HasStringArg(pseudo) ||
|
|
nsCSSPseudoClasses::HasNthPairArg(pseudo))) {
|
|
// There are no other function pseudos
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelNonFunc);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// If it starts with "::", it better be a pseudo-element
|
|
if (parsingPseudoElement &&
|
|
!isPseudoElement &&
|
|
!isAnonBox) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelNotPE);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (!parsingPseudoElement && nsCSSPseudoClasses::notPseudo == pseudo) {
|
|
if (aIsNegated) { // :not() can't be itself negated
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelDoubleNot);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
// CSS 3 Negation pseudo-class takes one simple selector as argument
|
|
nsSelectorParsingStatus parsingStatus =
|
|
ParseNegatedSimpleSelector(aDataMask, aSelector);
|
|
if (eSelectorParsingStatus_Continue != parsingStatus) {
|
|
return parsingStatus;
|
|
}
|
|
}
|
|
else if (!parsingPseudoElement && isPseudoClass) {
|
|
aDataMask |= SEL_MASK_PCLASS;
|
|
if (nsCSSPseudoClasses::HasStringArg(pseudo)) {
|
|
nsSelectorParsingStatus parsingStatus =
|
|
ParsePseudoClassWithIdentArg(aSelector, pseudo);
|
|
if (eSelectorParsingStatus_Continue != parsingStatus) {
|
|
return parsingStatus;
|
|
}
|
|
}
|
|
else if (nsCSSPseudoClasses::HasNthPairArg(pseudo)) {
|
|
nsSelectorParsingStatus parsingStatus =
|
|
ParsePseudoClassWithNthPairArg(aSelector, pseudo);
|
|
if (eSelectorParsingStatus_Continue != parsingStatus) {
|
|
return parsingStatus;
|
|
}
|
|
}
|
|
else {
|
|
aSelector.AddPseudoClass(pseudo);
|
|
}
|
|
}
|
|
else if (isPseudoElement || isAnonBox) {
|
|
// Pseudo-element. Make some more sanity checks.
|
|
|
|
if (aIsNegated) { // pseudo-elements can't be negated
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelPEInNot);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
// CSS2 pseudo-elements and -moz-tree-* pseudo-elements are allowed
|
|
// to have a single ':' on them. Others (CSS3+ pseudo-elements and
|
|
// various -moz-* pseudo-elements) must have |parsingPseudoElement|
|
|
// set.
|
|
if (!parsingPseudoElement &&
|
|
!nsCSSPseudoElements::IsCSS2PseudoElement(pseudo)
|
|
#ifdef MOZ_XUL
|
|
&& !isTreePseudo
|
|
#endif
|
|
) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelNewStyleOnly);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (0 == (aDataMask & SEL_MASK_PELEM)) {
|
|
aDataMask |= SEL_MASK_PELEM;
|
|
aSelector.AddPseudoClass(pseudo); // store it here, it gets pulled later
|
|
|
|
#ifdef MOZ_XUL
|
|
if (isTree) {
|
|
// We have encountered a pseudoelement of the form
|
|
// -moz-tree-xxxx(a,b,c). We parse (a,b,c) and add each
|
|
// item in the list to the pseudoclass list. They will be pulled
|
|
// from the list later along with the pseudo-element.
|
|
if (!ParseTreePseudoElement(aSelector)) {
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// ensure selector ends here, must be followed by EOF, space, '{' or ','
|
|
if (GetToken(PR_FALSE)) { // premature eof is ok (here!)
|
|
if ((eCSSToken_WhiteSpace == mToken.mType) ||
|
|
(mToken.IsSymbol('{') || mToken.IsSymbol(','))) {
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Done;
|
|
}
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelTrailing);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else { // multiple pseudo elements, not legal
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoSelMultiplePE);
|
|
UngetToken();
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
else {
|
|
// We should never end up here. Indeed, if we ended up here, we know (from
|
|
// the current if/else cascade) that !isPseudoElement and !isAnonBox. But
|
|
// then due to our earlier check we know that isPseudoClass. Since we
|
|
// didn't fall into the isPseudoClass case in this cascade, we must have
|
|
// parsingPseudoElement. But we've already checked the
|
|
// parsingPseudoElement && !isPseudoClass && !isAnonBox case and bailed if
|
|
// it's happened.
|
|
NS_NOTREACHED("How did this happen?");
|
|
}
|
|
#endif
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parse the argument of a negation pseudo-class :not()
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseNegatedSimpleSelector(PRInt32& aDataMask,
|
|
nsCSSSelector& aSelector)
|
|
{
|
|
// Check if we have the first parenthesis
|
|
if (!ExpectSymbol('(', PR_FALSE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PENegationBadArg);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (! GetToken(PR_TRUE)) { // premature eof
|
|
REPORT_UNEXPECTED_EOF(PENegationEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// Create a new nsCSSSelector and add it to the end of
|
|
// aSelector.mNegations.
|
|
// Given the current parsing rules, every selector in mNegations
|
|
// contains only one simple selector (css3 definition) within it.
|
|
// This could easily change in future versions of CSS, and the only
|
|
// thing we need to change to support that is this parsing code and the
|
|
// serialization code for nsCSSSelector.
|
|
nsCSSSelector *newSel = new nsCSSSelector();
|
|
if (!newSel) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
nsCSSSelector* negations = &aSelector;
|
|
while (negations->mNegations) {
|
|
negations = negations->mNegations;
|
|
}
|
|
negations->mNegations = newSel;
|
|
|
|
nsSelectorParsingStatus parsingStatus;
|
|
if (eCSSToken_ID == mToken.mType) { // #id
|
|
parsingStatus = ParseIDSelector(aDataMask, *newSel);
|
|
}
|
|
else if (mToken.IsSymbol('.')) { // .class
|
|
parsingStatus = ParseClassSelector(aDataMask, *newSel);
|
|
}
|
|
else if (mToken.IsSymbol(':')) { // :pseudo
|
|
parsingStatus = ParsePseudoSelector(aDataMask, *newSel, PR_TRUE);
|
|
}
|
|
else if (mToken.IsSymbol('[')) { // [attribute
|
|
parsingStatus = ParseAttributeSelector(aDataMask, *newSel);
|
|
}
|
|
else {
|
|
// then it should be a type element or universal selector
|
|
parsingStatus = ParseTypeOrUniversalSelector(aDataMask, *newSel, PR_TRUE);
|
|
}
|
|
if (eSelectorParsingStatus_Error == parsingStatus) {
|
|
REPORT_UNEXPECTED_TOKEN(PENegationBadInner);
|
|
return parsingStatus;
|
|
}
|
|
// close the parenthesis
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PENegationNoClose);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
NS_ASSERTION(newSel->mNameSpace == kNameSpaceID_Unknown ||
|
|
(!newSel->mIDList && !newSel->mClassList &&
|
|
!newSel->mPseudoClassList && !newSel->mAttrList),
|
|
"Need to fix the serialization code to deal with this");
|
|
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
//
|
|
// Parse the argument of a pseudo-class that has an ident arg
|
|
//
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParsePseudoClassWithIdentArg(nsCSSSelector& aSelector,
|
|
nsIAtom* aPseudo)
|
|
{
|
|
// Check if we have the first parenthesis
|
|
if (!ExpectSymbol('(', PR_FALSE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassNoArg);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (! GetToken(PR_TRUE)) { // premature eof
|
|
REPORT_UNEXPECTED_EOF(PEPseudoClassArgEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
// We expect an identifier with a language abbreviation
|
|
if (eCSSToken_Ident != mToken.mType) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotIdent);
|
|
UngetToken();
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// Add the pseudo with the language parameter
|
|
aSelector.AddPseudoClass(aPseudo, mToken.mIdent.get());
|
|
|
|
// close the parenthesis
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassNoClose);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParsePseudoClassWithNthPairArg(nsCSSSelector& aSelector,
|
|
nsIAtom* aPseudo)
|
|
{
|
|
PRInt32 numbers[2] = { 0, 0 };
|
|
PRBool lookForB = PR_TRUE;
|
|
|
|
// Check whether we have the first parenthesis
|
|
if (!ExpectSymbol('(', PR_FALSE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassNoArg);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
// Follow the whitespace rules as proposed in
|
|
// http://lists.w3.org/Archives/Public/www-style/2008Mar/0121.html
|
|
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEPseudoClassArgEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (eCSSToken_Ident == mToken.mType || eCSSToken_Dimension == mToken.mType) {
|
|
// The CSS tokenization doesn't handle :nth-child() containing - well:
|
|
// 2n-1 is a dimension
|
|
// n-1 is an identifier
|
|
// The easiest way to deal with that is to push everything from the
|
|
// minus on back onto the scanner's pushback buffer.
|
|
PRUint32 truncAt = 0;
|
|
if (StringBeginsWith(mToken.mIdent, NS_LITERAL_STRING("n-"))) {
|
|
truncAt = 1;
|
|
} else if (StringBeginsWith(mToken.mIdent, NS_LITERAL_STRING("-n-"))) {
|
|
truncAt = 2;
|
|
}
|
|
if (truncAt != 0) {
|
|
for (PRUint32 i = mToken.mIdent.Length() - 1; i >= truncAt; --i) {
|
|
mScanner.Pushback(mToken.mIdent[i]);
|
|
}
|
|
mToken.mIdent.Truncate(truncAt);
|
|
}
|
|
}
|
|
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
if (mToken.mIdent.EqualsIgnoreCase("odd")) {
|
|
numbers[0] = 2;
|
|
numbers[1] = 1;
|
|
lookForB = PR_FALSE;
|
|
}
|
|
else if (mToken.mIdent.EqualsIgnoreCase("even")) {
|
|
numbers[0] = 2;
|
|
numbers[1] = 0;
|
|
lookForB = PR_FALSE;
|
|
}
|
|
else if (mToken.mIdent.EqualsIgnoreCase("n")) {
|
|
numbers[0] = 1;
|
|
}
|
|
else if (mToken.mIdent.EqualsIgnoreCase("-n")) {
|
|
numbers[0] = -1;
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotNth);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
else if (eCSSToken_Number == mToken.mType) {
|
|
if (!mToken.mIntegerValid) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotNth);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
numbers[1] = mToken.mInteger;
|
|
lookForB = PR_FALSE;
|
|
}
|
|
else if (eCSSToken_Dimension == mToken.mType) {
|
|
if (!mToken.mIntegerValid || !mToken.mIdent.EqualsIgnoreCase("n")) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotNth);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
numbers[0] = mToken.mInteger;
|
|
}
|
|
// XXX If it's a ')', is that valid? (as 0n+0)
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotNth);
|
|
// XXX Call SkipUntil to the next ")" (unless this is one already)?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEPseudoClassArgEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
if (lookForB && !mToken.IsSymbol(')')) {
|
|
// The '+' or '-' sign can optionally be separated by whitespace.
|
|
// If it is separated by whitespace from what follows it, it appears
|
|
// as a separate token rather than part of the number token.
|
|
PRBool haveSign = PR_FALSE;
|
|
PRInt32 sign = 1;
|
|
if (mToken.IsSymbol('+') || mToken.IsSymbol('-')) {
|
|
haveSign = PR_TRUE;
|
|
if (mToken.IsSymbol('-')) {
|
|
sign = -1;
|
|
}
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEPseudoClassArgEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
if (eCSSToken_Number != mToken.mType ||
|
|
!mToken.mIntegerValid || mToken.mHasSign == haveSign) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassArgNotNth);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
numbers[1] = mToken.mInteger * sign;
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEPseudoClassArgEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
}
|
|
if (!mToken.IsSymbol(')')) {
|
|
REPORT_UNEXPECTED_TOKEN(PEPseudoClassNoClose);
|
|
// XXX Call SkipUntil to the next ")"?
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
aSelector.AddPseudoClass(aPseudo, numbers);
|
|
return eSelectorParsingStatus_Continue;
|
|
}
|
|
|
|
|
|
/**
|
|
* This is the format for selectors:
|
|
* operator? [[namespace |]? element_name]? [ ID | class | attrib | pseudo ]*
|
|
*/
|
|
CSSParserImpl::nsSelectorParsingStatus
|
|
CSSParserImpl::ParseSelector(nsCSSSelector& aSelector)
|
|
{
|
|
if (! GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PESelectorEOF);
|
|
return eSelectorParsingStatus_Error;
|
|
}
|
|
|
|
PRInt32 dataMask = 0;
|
|
nsSelectorParsingStatus parsingStatus =
|
|
ParseTypeOrUniversalSelector(dataMask, aSelector, PR_FALSE);
|
|
if (parsingStatus != eSelectorParsingStatus_Continue) {
|
|
return parsingStatus;
|
|
}
|
|
|
|
for (;;) {
|
|
if (eCSSToken_ID == mToken.mType) { // #id
|
|
parsingStatus = ParseIDSelector(dataMask, aSelector);
|
|
}
|
|
else if (mToken.IsSymbol('.')) { // .class
|
|
parsingStatus = ParseClassSelector(dataMask, aSelector);
|
|
}
|
|
else if (mToken.IsSymbol(':')) { // :pseudo
|
|
parsingStatus = ParsePseudoSelector(dataMask, aSelector, PR_FALSE);
|
|
}
|
|
else if (mToken.IsSymbol('[')) { // [attribute
|
|
parsingStatus = ParseAttributeSelector(dataMask, aSelector);
|
|
}
|
|
else { // not a selector token, we're done
|
|
parsingStatus = eSelectorParsingStatus_Done;
|
|
break;
|
|
}
|
|
|
|
if (parsingStatus != eSelectorParsingStatus_Continue) {
|
|
return parsingStatus;
|
|
}
|
|
|
|
if (! GetToken(PR_FALSE)) { // premature eof is ok (here!)
|
|
return eSelectorParsingStatus_Done;
|
|
}
|
|
}
|
|
UngetToken();
|
|
return dataMask ? parsingStatus : eSelectorParsingStatus_Empty;
|
|
}
|
|
|
|
nsCSSDeclaration*
|
|
CSSParserImpl::ParseDeclarationBlock(PRBool aCheckForBraces)
|
|
{
|
|
if (aCheckForBraces) {
|
|
if (!ExpectSymbol('{', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEBadDeclBlockStart);
|
|
OUTPUT_ERROR();
|
|
return nsnull;
|
|
}
|
|
}
|
|
nsCSSDeclaration* declaration = new nsCSSDeclaration();
|
|
mData.AssertInitialState();
|
|
if (declaration) {
|
|
for (;;) {
|
|
PRBool changed;
|
|
if (!ParseDeclaration(declaration, aCheckForBraces,
|
|
PR_TRUE, &changed)) {
|
|
if (!SkipDeclaration(aCheckForBraces)) {
|
|
break;
|
|
}
|
|
if (aCheckForBraces) {
|
|
if (ExpectSymbol('}', PR_TRUE)) {
|
|
break;
|
|
}
|
|
}
|
|
// Since the skipped declaration didn't end the block we parse
|
|
// the next declaration.
|
|
}
|
|
}
|
|
declaration->CompressFrom(&mData);
|
|
}
|
|
return declaration;
|
|
}
|
|
|
|
// The types to pass to ParseColorComponent. These correspond to the
|
|
// various datatypes that can go within rgb().
|
|
#define COLOR_TYPE_UNKNOWN 0
|
|
#define COLOR_TYPE_INTEGERS 1
|
|
#define COLOR_TYPE_PERCENTAGES 2
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseColor(nsCSSValue& aValue)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorEOF);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsCSSToken* tk = &mToken;
|
|
nscolor rgba;
|
|
switch (tk->mType) {
|
|
case eCSSToken_ID:
|
|
case eCSSToken_Ref:
|
|
// #xxyyzz
|
|
if (NS_HexToRGB(tk->mIdent, &rgba)) {
|
|
aValue.SetColorValue(rgba);
|
|
return PR_TRUE;
|
|
}
|
|
break;
|
|
|
|
case eCSSToken_Ident:
|
|
if (NS_ColorNameToRGB(tk->mIdent, &rgba)) {
|
|
aValue.SetStringValue(tk->mIdent, eCSSUnit_Ident);
|
|
return PR_TRUE;
|
|
}
|
|
else {
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(tk->mIdent);
|
|
if (eCSSKeyword_UNKNOWN < keyword) { // known keyword
|
|
PRInt32 value;
|
|
if (nsCSSProps::FindKeyword(keyword, nsCSSProps::kColorKTable, value)) {
|
|
aValue.SetIntValue(value, eCSSUnit_EnumColor);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case eCSSToken_Function:
|
|
if (mToken.mIdent.LowerCaseEqualsLiteral("rgb")) {
|
|
// rgb ( component , component , component )
|
|
PRUint8 r, g, b;
|
|
PRInt32 type = COLOR_TYPE_UNKNOWN;
|
|
if (ExpectSymbol('(', PR_FALSE) && // this won't fail
|
|
ParseColorComponent(r, type, ',') &&
|
|
ParseColorComponent(g, type, ',') &&
|
|
ParseColorComponent(b, type, ')')) {
|
|
aValue.SetColorValue(NS_RGB(r,g,b));
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE; // already pushed back
|
|
}
|
|
else if (mToken.mIdent.LowerCaseEqualsLiteral("-moz-rgba") ||
|
|
mToken.mIdent.LowerCaseEqualsLiteral("rgba")) {
|
|
// rgba ( component , component , component , opacity )
|
|
PRUint8 r, g, b, a;
|
|
PRInt32 type = COLOR_TYPE_UNKNOWN;
|
|
if (ExpectSymbol('(', PR_FALSE) && // this won't fail
|
|
ParseColorComponent(r, type, ',') &&
|
|
ParseColorComponent(g, type, ',') &&
|
|
ParseColorComponent(b, type, ',') &&
|
|
ParseColorOpacity(a)) {
|
|
aValue.SetColorValue(NS_RGBA(r, g, b, a));
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE; // already pushed back
|
|
}
|
|
else if (mToken.mIdent.LowerCaseEqualsLiteral("hsl")) {
|
|
// hsl ( hue , saturation , lightness )
|
|
// "hue" is a number, "saturation" and "lightness" are percentages.
|
|
if (ParseHSLColor(rgba, ')')) {
|
|
aValue.SetColorValue(rgba);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
else if (mToken.mIdent.LowerCaseEqualsLiteral("-moz-hsla") ||
|
|
mToken.mIdent.LowerCaseEqualsLiteral("hsla")) {
|
|
// hsla ( hue , saturation , lightness , opacity )
|
|
// "hue" is a number, "saturation" and "lightness" are percentages,
|
|
// "opacity" is a number.
|
|
PRUint8 a;
|
|
if (ParseHSLColor(rgba, ',') &&
|
|
ParseColorOpacity(a)) {
|
|
aValue.SetColorValue(NS_RGBA(NS_GET_R(rgba), NS_GET_G(rgba),
|
|
NS_GET_B(rgba), a));
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// try 'xxyyzz' without '#' prefix for compatibility with IE and Nav4x (bug 23236 and 45804)
|
|
if (mNavQuirkMode && !IsParsingCompoundProperty()) {
|
|
// - If the string starts with 'a-f', the nsCSSScanner builds the
|
|
// token as a eCSSToken_Ident and we can parse the string as a
|
|
// 'xxyyzz' RGB color.
|
|
// - If it only contains '0-9' digits, the token is a
|
|
// eCSSToken_Number and it must be converted back to a 6
|
|
// characters string to be parsed as a RGB color.
|
|
// - If it starts with '0-9' and contains any 'a-f', the token is a
|
|
// eCSSToken_Dimension, the mNumber part must be converted back to
|
|
// a string and the mIdent part must be appended to that string so
|
|
// that the resulting string has 6 characters.
|
|
// Note: This is a hack for Nav compatibility. Do not attempt to
|
|
// simplify it by hacking into the ncCSSScanner. This would be very
|
|
// bad.
|
|
nsAutoString str;
|
|
char buffer[20];
|
|
switch (tk->mType) {
|
|
case eCSSToken_Ident:
|
|
str.Assign(tk->mIdent);
|
|
break;
|
|
|
|
case eCSSToken_Number:
|
|
if (tk->mIntegerValid) {
|
|
PR_snprintf(buffer, sizeof(buffer), "%06d", tk->mInteger);
|
|
str.AssignWithConversion(buffer);
|
|
}
|
|
break;
|
|
|
|
case eCSSToken_Dimension:
|
|
if (tk->mIdent.Length() <= 6) {
|
|
PR_snprintf(buffer, sizeof(buffer), "%06.0f", tk->mNumber);
|
|
nsAutoString temp;
|
|
temp.AssignWithConversion(buffer);
|
|
temp.Right(str, 6 - tk->mIdent.Length());
|
|
str.Append(tk->mIdent);
|
|
}
|
|
break;
|
|
default:
|
|
// There is a whole bunch of cases that are
|
|
// not handled by this switch. Ignore them.
|
|
break;
|
|
}
|
|
if (NS_HexToRGB(str, &rgba)) {
|
|
aValue.SetColorValue(rgba);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// It's not a color
|
|
REPORT_UNEXPECTED_TOKEN(PEColorNotColor);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// aType will be set if we have already parsed other color components
|
|
// in this color spec
|
|
PRBool
|
|
CSSParserImpl::ParseColorComponent(PRUint8& aComponent,
|
|
PRInt32& aType,
|
|
char aStop)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorComponentEOF);
|
|
return PR_FALSE;
|
|
}
|
|
float value;
|
|
nsCSSToken* tk = &mToken;
|
|
switch (tk->mType) {
|
|
case eCSSToken_Number:
|
|
switch (aType) {
|
|
case COLOR_TYPE_UNKNOWN:
|
|
aType = COLOR_TYPE_INTEGERS;
|
|
break;
|
|
case COLOR_TYPE_INTEGERS:
|
|
break;
|
|
case COLOR_TYPE_PERCENTAGES:
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedPercent);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
default:
|
|
NS_NOTREACHED("Someone forgot to add the new color component type in here");
|
|
}
|
|
|
|
if (!mToken.mIntegerValid) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedInt);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
value = tk->mNumber;
|
|
break;
|
|
case eCSSToken_Percentage:
|
|
switch (aType) {
|
|
case COLOR_TYPE_UNKNOWN:
|
|
aType = COLOR_TYPE_PERCENTAGES;
|
|
break;
|
|
case COLOR_TYPE_INTEGERS:
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedInt);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
case COLOR_TYPE_PERCENTAGES:
|
|
break;
|
|
default:
|
|
NS_NOTREACHED("Someone forgot to add the new color component type in here");
|
|
}
|
|
value = tk->mNumber * 255.0f;
|
|
break;
|
|
default:
|
|
REPORT_UNEXPECTED_TOKEN(PEColorBadRGBContents);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
if (ExpectSymbol(aStop, PR_TRUE)) {
|
|
if (value < 0.0f) value = 0.0f;
|
|
if (value > 255.0f) value = 255.0f;
|
|
aComponent = NSToIntRound(value);
|
|
return PR_TRUE;
|
|
}
|
|
const PRUnichar stopString[] = { PRUnichar(aStop), PRUnichar(0) };
|
|
const PRUnichar *params[] = {
|
|
nsnull,
|
|
stopString
|
|
};
|
|
REPORT_UNEXPECTED_TOKEN_P(PEColorComponentBadTerm, params);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseHSLColor(nscolor& aColor,
|
|
char aStop)
|
|
{
|
|
float h, s, l;
|
|
if (!ExpectSymbol('(', PR_FALSE)) {
|
|
NS_ERROR("How did this get to be a function token?");
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Get the hue
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorHueEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (mToken.mType != eCSSToken_Number) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedNumber);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
h = mToken.mNumber;
|
|
h /= 360.0f;
|
|
// hue values are wraparound
|
|
h = h - floor(h);
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedComma);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Get the saturation
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorSaturationEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (mToken.mType != eCSSToken_Percentage) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedPercent);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
s = mToken.mNumber;
|
|
if (s < 0.0f) s = 0.0f;
|
|
if (s > 1.0f) s = 1.0f;
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedComma);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Get the lightness
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorLightnessEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (mToken.mType != eCSSToken_Percentage) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedPercent);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
l = mToken.mNumber;
|
|
if (l < 0.0f) l = 0.0f;
|
|
if (l > 1.0f) l = 1.0f;
|
|
|
|
if (ExpectSymbol(aStop, PR_TRUE)) {
|
|
aColor = NS_HSL2RGB(h, s, l);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
const PRUnichar stopString[] = { PRUnichar(aStop), PRUnichar(0) };
|
|
const PRUnichar *params[] = {
|
|
nsnull,
|
|
stopString
|
|
};
|
|
REPORT_UNEXPECTED_TOKEN_P(PEColorComponentBadTerm, params);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseColorOpacity(PRUint8& aOpacity)
|
|
{
|
|
if (!GetToken(PR_TRUE)) {
|
|
REPORT_UNEXPECTED_EOF(PEColorOpacityEOF);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (mToken.mType != eCSSToken_Number) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedNumber);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (mToken.mNumber < 0.0f) {
|
|
mToken.mNumber = 0.0f;
|
|
} else if (mToken.mNumber > 1.0f) {
|
|
mToken.mNumber = 1.0f;
|
|
}
|
|
|
|
PRUint8 value = nsStyleUtil::FloatToColorComponent(mToken.mNumber);
|
|
NS_ASSERTION(fabs(mToken.mNumber - value/255.0f) <= 0.5f,
|
|
"FloatToColorComponent did something weird");
|
|
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedCloseParen);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
aOpacity = value;
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
#ifdef MOZ_XUL
|
|
PRBool
|
|
CSSParserImpl::ParseTreePseudoElement(nsCSSSelector& aSelector)
|
|
{
|
|
if (ExpectSymbol('(', PR_FALSE)) {
|
|
while (!ExpectSymbol(')', PR_TRUE)) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
else if (eCSSToken_Ident == mToken.mType) {
|
|
nsCOMPtr<nsIAtom> pseudo = do_GetAtom(mToken.mIdent);
|
|
aSelector.AddPseudoClass(pseudo);
|
|
}
|
|
else if (eCSSToken_Symbol == mToken.mType) {
|
|
if (!mToken.IsSymbol(','))
|
|
return PR_FALSE;
|
|
}
|
|
else return PR_FALSE;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
#endif
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseDeclaration(nsCSSDeclaration* aDeclaration,
|
|
PRBool aCheckForBraces,
|
|
PRBool aMustCallValueAppended,
|
|
PRBool* aChanged)
|
|
{
|
|
mTempData.AssertInitialState();
|
|
|
|
// Get property name
|
|
nsCSSToken* tk = &mToken;
|
|
nsAutoString propertyName;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE)) {
|
|
if (aCheckForBraces) {
|
|
REPORT_UNEXPECTED_EOF(PEDeclEndEOF);
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident == tk->mType) {
|
|
propertyName = tk->mIdent;
|
|
// grab the ident before the ExpectSymbol trashes the token
|
|
if (!ExpectSymbol(':', PR_TRUE)) {
|
|
REPORT_UNEXPECTED_TOKEN(PEParseDeclarationNoColon);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
return PR_FALSE;
|
|
}
|
|
break;
|
|
}
|
|
if (tk->IsSymbol(';')) {
|
|
// dangling semicolons are skipped
|
|
continue;
|
|
}
|
|
|
|
if (!tk->IsSymbol('}')) {
|
|
REPORT_UNEXPECTED_TOKEN(PEParseDeclarationDeclExpected);
|
|
REPORT_UNEXPECTED(PEDeclSkipped);
|
|
OUTPUT_ERROR();
|
|
}
|
|
// Not a declaration...
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Map property name to its ID and then parse the property
|
|
nsCSSProperty propID = nsCSSProps::LookupProperty(propertyName);
|
|
if (eCSSProperty_UNKNOWN == propID) { // unknown property
|
|
if (!NonMozillaVendorIdentifier(propertyName)) {
|
|
const PRUnichar *params[] = {
|
|
propertyName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEUnknownProperty, params);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
if (! ParseProperty(propID)) {
|
|
// XXX Much better to put stuff in the value parsers instead...
|
|
const PRUnichar *params[] = {
|
|
propertyName.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEValueParsingError, params);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
ClearTempData(propID);
|
|
return PR_FALSE;
|
|
}
|
|
CLEAR_ERROR();
|
|
|
|
// See if the declaration is followed by a "!important" declaration
|
|
PRBool isImportant = PR_FALSE;
|
|
if (!GetToken(PR_TRUE)) {
|
|
// EOF is a perfectly good way to end a declaration and declaration block
|
|
TransferTempData(aDeclaration, propID, isImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
if (eCSSToken_Symbol == tk->mType && '!' == tk->mSymbol) {
|
|
// Look for important ident
|
|
if (!GetToken(PR_TRUE)) {
|
|
// Premature eof is not ok
|
|
REPORT_UNEXPECTED_EOF(PEImportantEOF);
|
|
ClearTempData(propID);
|
|
return PR_FALSE;
|
|
}
|
|
if ((eCSSToken_Ident != tk->mType) ||
|
|
!tk->mIdent.LowerCaseEqualsLiteral("important")) {
|
|
REPORT_UNEXPECTED_TOKEN(PEExpectedImportant);
|
|
OUTPUT_ERROR();
|
|
UngetToken();
|
|
ClearTempData(propID);
|
|
return PR_FALSE;
|
|
}
|
|
isImportant = PR_TRUE;
|
|
}
|
|
else {
|
|
// Not a !important declaration
|
|
UngetToken();
|
|
}
|
|
|
|
// Make sure valid property declaration is terminated with either a
|
|
// semicolon, EOF or a right-curly-brace (this last only when
|
|
// aCheckForBraces is true).
|
|
if (!GetToken(PR_TRUE)) {
|
|
// EOF is a perfectly good way to end a declaration and declaration block
|
|
TransferTempData(aDeclaration, propID, isImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
return PR_TRUE;
|
|
}
|
|
if (eCSSToken_Symbol == tk->mType) {
|
|
if (';' == tk->mSymbol) {
|
|
TransferTempData(aDeclaration, propID, isImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
return PR_TRUE;
|
|
}
|
|
if (aCheckForBraces && '}' == tk->mSymbol) {
|
|
// Unget the '}' so we'll be able to tell that this is the end
|
|
// of the declaration block when we unwind from here.
|
|
UngetToken();
|
|
TransferTempData(aDeclaration, propID, isImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if (aCheckForBraces)
|
|
REPORT_UNEXPECTED_TOKEN(PEBadDeclOrRuleEnd2);
|
|
else
|
|
REPORT_UNEXPECTED_TOKEN(PEBadDeclEnd);
|
|
REPORT_UNEXPECTED(PEDeclDropped);
|
|
OUTPUT_ERROR();
|
|
ClearTempData(propID);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::ClearTempData(nsCSSProperty aPropID)
|
|
{
|
|
if (nsCSSProps::IsShorthand(aPropID)) {
|
|
CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(p, aPropID) {
|
|
mTempData.ClearProperty(*p);
|
|
}
|
|
} else {
|
|
mTempData.ClearProperty(aPropID);
|
|
}
|
|
mTempData.AssertInitialState();
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::TransferTempData(nsCSSDeclaration* aDeclaration,
|
|
nsCSSProperty aPropID, PRBool aIsImportant,
|
|
PRBool aMustCallValueAppended,
|
|
PRBool* aChanged)
|
|
{
|
|
if (nsCSSProps::IsShorthand(aPropID)) {
|
|
CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(p, aPropID) {
|
|
DoTransferTempData(aDeclaration, *p, aIsImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
}
|
|
} else {
|
|
DoTransferTempData(aDeclaration, aPropID, aIsImportant,
|
|
aMustCallValueAppended, aChanged);
|
|
}
|
|
mTempData.AssertInitialState();
|
|
}
|
|
|
|
// Perhaps the transferring code should be in nsCSSExpandedDataBlock, in
|
|
// case some other caller wants to use it in the future (although I
|
|
// can't think of why).
|
|
void
|
|
CSSParserImpl::DoTransferTempData(nsCSSDeclaration* aDeclaration,
|
|
nsCSSProperty aPropID, PRBool aIsImportant,
|
|
PRBool aMustCallValueAppended,
|
|
PRBool* aChanged)
|
|
{
|
|
NS_ASSERTION(mTempData.HasPropertyBit(aPropID), "oops");
|
|
if (aIsImportant) {
|
|
if (!mData.HasImportantBit(aPropID))
|
|
*aChanged = PR_TRUE;
|
|
mData.SetImportantBit(aPropID);
|
|
} else {
|
|
if (mData.HasImportantBit(aPropID)) {
|
|
mTempData.ClearProperty(aPropID);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (aMustCallValueAppended || !mData.HasPropertyBit(aPropID)) {
|
|
aDeclaration->ValueAppended(aPropID);
|
|
}
|
|
|
|
mData.SetPropertyBit(aPropID);
|
|
mTempData.ClearPropertyBit(aPropID);
|
|
|
|
/*
|
|
* Save needless copying and allocation by calling the destructor in
|
|
* the destination, copying memory directly, and then using placement
|
|
* new.
|
|
*/
|
|
void *v_source = mTempData.PropertyAt(aPropID);
|
|
void *v_dest = mData.PropertyAt(aPropID);
|
|
switch (nsCSSProps::kTypeTable[aPropID]) {
|
|
case eCSSType_Value: {
|
|
nsCSSValue *source = static_cast<nsCSSValue*>(v_source);
|
|
nsCSSValue *dest = static_cast<nsCSSValue*>(v_dest);
|
|
if (*source != *dest)
|
|
*aChanged = PR_TRUE;
|
|
dest->~nsCSSValue();
|
|
memcpy(dest, source, sizeof(nsCSSValue));
|
|
new (source) nsCSSValue();
|
|
} break;
|
|
|
|
case eCSSType_Rect: {
|
|
nsCSSRect *source = static_cast<nsCSSRect*>(v_source);
|
|
nsCSSRect *dest = static_cast<nsCSSRect*>(v_dest);
|
|
if (*source != *dest)
|
|
*aChanged = PR_TRUE;
|
|
dest->~nsCSSRect();
|
|
memcpy(dest, source, sizeof(nsCSSRect));
|
|
new (source) nsCSSRect();
|
|
} break;
|
|
|
|
case eCSSType_ValuePair: {
|
|
nsCSSValuePair *source = static_cast<nsCSSValuePair*>(v_source);
|
|
nsCSSValuePair *dest = static_cast<nsCSSValuePair*>(v_dest);
|
|
if (*source != *dest)
|
|
*aChanged = PR_TRUE;
|
|
dest->~nsCSSValuePair();
|
|
memcpy(dest, source, sizeof(nsCSSValuePair));
|
|
new (source) nsCSSValuePair();
|
|
} break;
|
|
|
|
case eCSSType_ValueList: {
|
|
nsCSSValueList **source = static_cast<nsCSSValueList**>(v_source);
|
|
nsCSSValueList **dest = static_cast<nsCSSValueList**>(v_dest);
|
|
if (!nsCSSValueList::Equal(*source, *dest))
|
|
*aChanged = PR_TRUE;
|
|
delete *dest;
|
|
*dest = *source;
|
|
*source = nsnull;
|
|
} break;
|
|
|
|
case eCSSType_ValuePairList: {
|
|
nsCSSValuePairList **source =
|
|
static_cast<nsCSSValuePairList**>(v_source);
|
|
nsCSSValuePairList **dest =
|
|
static_cast<nsCSSValuePairList**>(v_dest);
|
|
if (!nsCSSValuePairList::Equal(*source, *dest))
|
|
*aChanged = PR_TRUE;
|
|
delete *dest;
|
|
*dest = *source;
|
|
*source = nsnull;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
static const nsCSSProperty kBorderTopIDs[] = {
|
|
eCSSProperty_border_top_width,
|
|
eCSSProperty_border_top_style,
|
|
eCSSProperty_border_top_color
|
|
};
|
|
static const nsCSSProperty kBorderRightIDs[] = {
|
|
eCSSProperty_border_right_width_value,
|
|
eCSSProperty_border_right_style_value,
|
|
eCSSProperty_border_right_color_value,
|
|
eCSSProperty_border_right_width,
|
|
eCSSProperty_border_right_style,
|
|
eCSSProperty_border_right_color
|
|
};
|
|
static const nsCSSProperty kBorderBottomIDs[] = {
|
|
eCSSProperty_border_bottom_width,
|
|
eCSSProperty_border_bottom_style,
|
|
eCSSProperty_border_bottom_color
|
|
};
|
|
static const nsCSSProperty kBorderLeftIDs[] = {
|
|
eCSSProperty_border_left_width_value,
|
|
eCSSProperty_border_left_style_value,
|
|
eCSSProperty_border_left_color_value,
|
|
eCSSProperty_border_left_width,
|
|
eCSSProperty_border_left_style,
|
|
eCSSProperty_border_left_color
|
|
};
|
|
static const nsCSSProperty kBorderStartIDs[] = {
|
|
eCSSProperty_border_start_width_value,
|
|
eCSSProperty_border_start_style_value,
|
|
eCSSProperty_border_start_color_value,
|
|
eCSSProperty_border_start_width,
|
|
eCSSProperty_border_start_style,
|
|
eCSSProperty_border_start_color
|
|
};
|
|
static const nsCSSProperty kBorderEndIDs[] = {
|
|
eCSSProperty_border_end_width_value,
|
|
eCSSProperty_border_end_style_value,
|
|
eCSSProperty_border_end_color_value,
|
|
eCSSProperty_border_end_width,
|
|
eCSSProperty_border_end_style,
|
|
eCSSProperty_border_end_color
|
|
};
|
|
static const nsCSSProperty kColumnRuleIDs[] = {
|
|
eCSSProperty__moz_column_rule_width,
|
|
eCSSProperty__moz_column_rule_style,
|
|
eCSSProperty__moz_column_rule_color
|
|
};
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseEnum(nsCSSValue& aValue,
|
|
const PRInt32 aKeywordTable[])
|
|
{
|
|
nsSubstring* ident = NextIdent();
|
|
if (nsnull == ident) {
|
|
return PR_FALSE;
|
|
}
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(*ident);
|
|
if (eCSSKeyword_UNKNOWN < keyword) {
|
|
PRInt32 value;
|
|
if (nsCSSProps::FindKeyword(keyword, aKeywordTable, value)) {
|
|
aValue.SetIntValue(value, eCSSUnit_Enumerated);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// Put the unknown identifier back and return
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
struct UnitInfo {
|
|
char name[5]; // needs to be long enough for the longest unit, with
|
|
// terminating null.
|
|
PRUint32 length;
|
|
nsCSSUnit unit;
|
|
PRInt32 type;
|
|
};
|
|
|
|
#define STR_WITH_LEN(_str) \
|
|
_str, sizeof(_str) - 1
|
|
|
|
const UnitInfo UnitData[] = {
|
|
{ STR_WITH_LEN("px"), eCSSUnit_Pixel, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("em"), eCSSUnit_EM, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("ex"), eCSSUnit_XHeight, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("pt"), eCSSUnit_Point, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("in"), eCSSUnit_Inch, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("cm"), eCSSUnit_Centimeter, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("ch"), eCSSUnit_Char, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("rem"), eCSSUnit_RootEM, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("mm"), eCSSUnit_Millimeter, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("pc"), eCSSUnit_Pica, VARIANT_LENGTH },
|
|
{ STR_WITH_LEN("deg"), eCSSUnit_Degree, VARIANT_ANGLE },
|
|
{ STR_WITH_LEN("grad"), eCSSUnit_Grad, VARIANT_ANGLE },
|
|
{ STR_WITH_LEN("rad"), eCSSUnit_Radian, VARIANT_ANGLE },
|
|
{ STR_WITH_LEN("hz"), eCSSUnit_Hertz, VARIANT_FREQUENCY },
|
|
{ STR_WITH_LEN("khz"), eCSSUnit_Kilohertz, VARIANT_FREQUENCY },
|
|
{ STR_WITH_LEN("s"), eCSSUnit_Seconds, VARIANT_TIME },
|
|
{ STR_WITH_LEN("ms"), eCSSUnit_Milliseconds, VARIANT_TIME }
|
|
};
|
|
|
|
#undef STR_WITH_LEN
|
|
|
|
PRBool
|
|
CSSParserImpl::TranslateDimension(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
float aNumber,
|
|
const nsString& aUnit)
|
|
{
|
|
nsCSSUnit units;
|
|
PRInt32 type = 0;
|
|
if (!aUnit.IsEmpty()) {
|
|
PRUint32 i;
|
|
for (i = 0; i < NS_ARRAY_LENGTH(UnitData); ++i) {
|
|
if (aUnit.LowerCaseEqualsASCII(UnitData[i].name,
|
|
UnitData[i].length)) {
|
|
units = UnitData[i].unit;
|
|
type = UnitData[i].type;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == NS_ARRAY_LENGTH(UnitData)) {
|
|
// Unknown unit
|
|
return PR_FALSE;
|
|
}
|
|
} else {
|
|
// Must be a zero number...
|
|
NS_ASSERTION(0 == aNumber, "numbers without units must be 0");
|
|
if ((VARIANT_LENGTH & aVariantMask) != 0) {
|
|
units = eCSSUnit_Point;
|
|
type = VARIANT_LENGTH;
|
|
}
|
|
else if ((VARIANT_ANGLE & aVariantMask) != 0) {
|
|
units = eCSSUnit_Degree;
|
|
type = VARIANT_ANGLE;
|
|
}
|
|
else if ((VARIANT_FREQUENCY & aVariantMask) != 0) {
|
|
units = eCSSUnit_Hertz;
|
|
type = VARIANT_FREQUENCY;
|
|
}
|
|
else if ((VARIANT_TIME & aVariantMask) != 0) {
|
|
units = eCSSUnit_Seconds;
|
|
type = VARIANT_TIME;
|
|
}
|
|
else {
|
|
NS_ERROR("Variant mask does not include dimension; why were we called?");
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if ((type & aVariantMask) != 0) {
|
|
aValue.SetFloatValue(aNumber, units);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
#define VARIANT_ALL_NONNUMERIC \
|
|
VARIANT_KEYWORD | \
|
|
VARIANT_COLOR | \
|
|
VARIANT_URL | \
|
|
VARIANT_STRING | \
|
|
VARIANT_COUNTER | \
|
|
VARIANT_ATTR | \
|
|
VARIANT_IDENTIFIER | \
|
|
VARIANT_AUTO | \
|
|
VARIANT_INHERIT | \
|
|
VARIANT_NONE | \
|
|
VARIANT_NORMAL | \
|
|
VARIANT_SYSFONT
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseNonNegativeVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[])
|
|
{
|
|
// The variant mask must only contain non-numeric variants or the ones
|
|
// that we specifically handle.
|
|
NS_ABORT_IF_FALSE((aVariantMask & ~(VARIANT_ALL_NONNUMERIC |
|
|
VARIANT_NUMBER |
|
|
VARIANT_LENGTH |
|
|
VARIANT_PERCENT |
|
|
VARIANT_INTEGER)) == 0,
|
|
"need to update code below to handle additional variants");
|
|
|
|
if (ParseVariant(aValue, aVariantMask, aKeywordTable)) {
|
|
if (eCSSUnit_Number == aValue.GetUnit() ||
|
|
aValue.IsLengthUnit()){
|
|
if (aValue.GetFloatValue() < 0) {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
else if (aValue.GetUnit() == eCSSUnit_Percent) {
|
|
if (aValue.GetPercentValue() < 0) {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
} else if (aValue.GetUnit() == eCSSUnit_Integer) {
|
|
if (aValue.GetIntValue() < 0) {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParsePositiveNonZeroVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[])
|
|
{
|
|
// The variant mask must only contain non-numeric variants or the ones
|
|
// that we specifically handle.
|
|
NS_ABORT_IF_FALSE((aVariantMask & ~(VARIANT_ALL_NONNUMERIC |
|
|
VARIANT_INTEGER)) == 0,
|
|
"need to update code below to handle additional variants");
|
|
|
|
if (ParseVariant(aValue, aVariantMask, aKeywordTable)) {
|
|
if (aValue.GetUnit() == eCSSUnit_Integer) {
|
|
if (aValue.GetIntValue() <= 0) {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Assigns to aValue iff it returns PR_TRUE.
|
|
PRBool
|
|
CSSParserImpl::ParseVariant(nsCSSValue& aValue,
|
|
PRInt32 aVariantMask,
|
|
const PRInt32 aKeywordTable[])
|
|
{
|
|
NS_ASSERTION(IsParsingCompoundProperty() ||
|
|
((~aVariantMask) & (VARIANT_LENGTH|VARIANT_COLOR)),
|
|
"cannot distinguish lengths and colors in quirks mode");
|
|
|
|
if (!GetToken(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
nsCSSToken* tk = &mToken;
|
|
if (((aVariantMask & (VARIANT_AHK | VARIANT_NORMAL | VARIANT_NONE)) != 0) &&
|
|
(eCSSToken_Ident == tk->mType)) {
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(tk->mIdent);
|
|
if (eCSSKeyword_UNKNOWN < keyword) { // known keyword
|
|
if ((aVariantMask & VARIANT_AUTO) != 0) {
|
|
if (eCSSKeyword_auto == keyword) {
|
|
aValue.SetAutoValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if ((aVariantMask & VARIANT_INHERIT) != 0) {
|
|
// XXX Should we check IsParsingCompoundProperty, or do all
|
|
// callers handle it? (Not all callers set it, though, since
|
|
// they want the quirks that are disabled by setting it.)
|
|
if (eCSSKeyword_inherit == keyword) {
|
|
aValue.SetInheritValue();
|
|
return PR_TRUE;
|
|
}
|
|
else if (eCSSKeyword__moz_initial == keyword) { // anything that can inherit can also take an initial val.
|
|
aValue.SetInitialValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if ((aVariantMask & VARIANT_NONE) != 0) {
|
|
if (eCSSKeyword_none == keyword) {
|
|
aValue.SetNoneValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if ((aVariantMask & VARIANT_NORMAL) != 0) {
|
|
if (eCSSKeyword_normal == keyword) {
|
|
aValue.SetNormalValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if ((aVariantMask & VARIANT_SYSFONT) != 0) {
|
|
if (eCSSKeyword__moz_use_system_font == keyword &&
|
|
!IsParsingCompoundProperty()) {
|
|
aValue.SetSystemFontValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
if ((aVariantMask & VARIANT_KEYWORD) != 0) {
|
|
PRInt32 value;
|
|
if (nsCSSProps::FindKeyword(keyword, aKeywordTable, value)) {
|
|
aValue.SetIntValue(value, eCSSUnit_Enumerated);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (((aVariantMask & (VARIANT_LENGTH | VARIANT_ANGLE | VARIANT_FREQUENCY | VARIANT_TIME)) != 0) &&
|
|
tk->IsDimension()) {
|
|
if (TranslateDimension(aValue, aVariantMask, tk->mNumber, tk->mIdent)) {
|
|
return PR_TRUE;
|
|
}
|
|
// Put the token back; we didn't parse it, so we shouldn't consume it
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
if (((aVariantMask & VARIANT_PERCENT) != 0) &&
|
|
(eCSSToken_Percentage == tk->mType)) {
|
|
aValue.SetPercentValue(tk->mNumber);
|
|
return PR_TRUE;
|
|
}
|
|
if (((aVariantMask & VARIANT_NUMBER) != 0) &&
|
|
(eCSSToken_Number == tk->mType)) {
|
|
aValue.SetFloatValue(tk->mNumber, eCSSUnit_Number);
|
|
return PR_TRUE;
|
|
}
|
|
if (((aVariantMask & VARIANT_INTEGER) != 0) &&
|
|
(eCSSToken_Number == tk->mType) && tk->mIntegerValid) {
|
|
aValue.SetIntValue(tk->mInteger, eCSSUnit_Integer);
|
|
return PR_TRUE;
|
|
}
|
|
if (mNavQuirkMode && !IsParsingCompoundProperty()) { // NONSTANDARD: Nav interprets unitless numbers as px
|
|
if (((aVariantMask & VARIANT_LENGTH) != 0) &&
|
|
(eCSSToken_Number == tk->mType)) {
|
|
aValue.SetFloatValue(tk->mNumber, eCSSUnit_Pixel);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
if (IsSVGMode() && !IsParsingCompoundProperty()) {
|
|
// STANDARD: SVG Spec states that lengths and coordinates can be unitless
|
|
// in which case they default to user-units (1 px = 1 user unit)
|
|
if (((aVariantMask & VARIANT_LENGTH) != 0) &&
|
|
(eCSSToken_Number == tk->mType)) {
|
|
aValue.SetFloatValue(tk->mNumber, eCSSUnit_Pixel);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (((aVariantMask & VARIANT_URL) != 0) &&
|
|
(eCSSToken_Function == tk->mType) &&
|
|
tk->mIdent.LowerCaseEqualsLiteral("url")) {
|
|
if (ParseURL(aValue)) {
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
if ((aVariantMask & VARIANT_COLOR) != 0) {
|
|
if ((mNavQuirkMode && !IsParsingCompoundProperty()) || // NONSTANDARD: Nav interprets 'xxyyzz' values even without '#' prefix
|
|
(eCSSToken_ID == tk->mType) ||
|
|
(eCSSToken_Ref == tk->mType) ||
|
|
(eCSSToken_Ident == tk->mType) ||
|
|
((eCSSToken_Function == tk->mType) &&
|
|
(tk->mIdent.LowerCaseEqualsLiteral("rgb") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("hsl") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("-moz-rgba") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("-moz-hsla") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("rgba") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("hsla"))))
|
|
{
|
|
// Put token back so that parse color can get it
|
|
UngetToken();
|
|
if (ParseColor(aValue)) {
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if (((aVariantMask & VARIANT_STRING) != 0) &&
|
|
(eCSSToken_String == tk->mType)) {
|
|
nsAutoString buffer;
|
|
buffer.Append(tk->mIdent);
|
|
aValue.SetStringValue(buffer, eCSSUnit_String);
|
|
return PR_TRUE;
|
|
}
|
|
if (((aVariantMask & VARIANT_IDENTIFIER) != 0) &&
|
|
(eCSSToken_Ident == tk->mType)) {
|
|
aValue.SetStringValue(tk->mIdent, eCSSUnit_Ident);
|
|
return PR_TRUE;
|
|
}
|
|
if (((aVariantMask & VARIANT_COUNTER) != 0) &&
|
|
(eCSSToken_Function == tk->mType) &&
|
|
(tk->mIdent.LowerCaseEqualsLiteral("counter") ||
|
|
tk->mIdent.LowerCaseEqualsLiteral("counters"))) {
|
|
return ParseCounter(aValue);
|
|
}
|
|
if (((aVariantMask & VARIANT_ATTR) != 0) &&
|
|
(eCSSToken_Function == tk->mType) &&
|
|
tk->mIdent.LowerCaseEqualsLiteral("attr")) {
|
|
return ParseAttr(aValue);
|
|
}
|
|
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseCounter(nsCSSValue& aValue)
|
|
{
|
|
nsCSSUnit unit = (mToken.mIdent.LowerCaseEqualsLiteral("counter") ?
|
|
eCSSUnit_Counter : eCSSUnit_Counters);
|
|
|
|
if (!ExpectSymbol('(', PR_FALSE))
|
|
return PR_FALSE;
|
|
|
|
if (!GetNonCloseParenToken(PR_TRUE) ||
|
|
eCSSToken_Ident != mToken.mType) {
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsRefPtr<nsCSSValue::Array> val =
|
|
nsCSSValue::Array::Create(unit == eCSSUnit_Counter ? 2 : 3);
|
|
if (!val) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
val->Item(0).SetStringValue(mToken.mIdent, eCSSUnit_Ident);
|
|
|
|
if (eCSSUnit_Counters == unit) {
|
|
// get mandatory separator string
|
|
if (!ExpectSymbol(',', PR_TRUE) ||
|
|
!(GetNonCloseParenToken(PR_TRUE) &&
|
|
eCSSToken_String == mToken.mType)) {
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
val->Item(1).SetStringValue(mToken.mIdent, eCSSUnit_String);
|
|
}
|
|
|
|
// get optional type
|
|
PRInt32 type = NS_STYLE_LIST_STYLE_DECIMAL;
|
|
if (ExpectSymbol(',', PR_TRUE)) {
|
|
nsCSSKeyword keyword;
|
|
PRBool success = GetNonCloseParenToken(PR_TRUE) &&
|
|
eCSSToken_Ident == mToken.mType &&
|
|
(keyword = nsCSSKeywords::LookupKeyword(mToken.mIdent)) !=
|
|
eCSSKeyword_UNKNOWN;
|
|
if (success) {
|
|
if (keyword == eCSSKeyword_none) {
|
|
type = NS_STYLE_LIST_STYLE_NONE;
|
|
} else {
|
|
success = nsCSSProps::FindKeyword(keyword,
|
|
nsCSSProps::kListStyleKTable, type);
|
|
}
|
|
}
|
|
if (!success) {
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
PRInt32 typeItem = eCSSUnit_Counters == unit ? 2 : 1;
|
|
if (type == NS_STYLE_LIST_STYLE_NONE) {
|
|
val->Item(typeItem).SetNoneValue();
|
|
} else {
|
|
val->Item(typeItem).SetIntValue(type, eCSSUnit_Enumerated);
|
|
}
|
|
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
SkipUntil(')');
|
|
return PR_FALSE;
|
|
}
|
|
|
|
aValue.SetArrayValue(val, unit);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseAttr(nsCSSValue& aValue)
|
|
{
|
|
if (ExpectSymbol('(', PR_FALSE)) {
|
|
if (GetToken(PR_TRUE)) {
|
|
nsAutoString attr;
|
|
if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
|
|
nsAutoString holdIdent(mToken.mIdent);
|
|
if (ExpectSymbol('|', PR_FALSE)) { // namespace
|
|
PRInt32 nameSpaceID;
|
|
if (!GetNamespaceIdForPrefix(holdIdent, &nameSpaceID)) {
|
|
return PR_FALSE;
|
|
}
|
|
attr.AppendInt(nameSpaceID, 10);
|
|
attr.Append(PRUnichar('|'));
|
|
if (! GetToken(PR_FALSE)) {
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
if (mCaseSensitive) {
|
|
attr.Append(mToken.mIdent);
|
|
} else {
|
|
nsAutoString buffer;
|
|
ToLowerCase(mToken.mIdent, buffer);
|
|
attr.Append(buffer);
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
else { // no namespace
|
|
if (mCaseSensitive) {
|
|
attr = holdIdent;
|
|
}
|
|
else {
|
|
ToLowerCase(holdIdent, attr);
|
|
}
|
|
}
|
|
}
|
|
else if (mToken.IsSymbol('*')) { // namespace wildcard
|
|
// Wildcard namespace makes no sense here and is not allowed
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
else if (mToken.IsSymbol('|')) { // explicit NO namespace
|
|
if (! GetToken(PR_FALSE)) {
|
|
REPORT_UNEXPECTED_EOF(PEAttributeNameEOF);
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
if (mCaseSensitive) {
|
|
attr.Append(mToken.mIdent);
|
|
} else {
|
|
nsAutoString buffer;
|
|
ToLowerCase(mToken.mIdent, buffer);
|
|
attr.Append(buffer);
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameExpected);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
else {
|
|
REPORT_UNEXPECTED_TOKEN(PEAttributeNameOrNamespaceExpected);
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
if (ExpectSymbol(')', PR_TRUE)) {
|
|
aValue.SetStringValue(attr, eCSSUnit_Attr);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseURL(nsCSSValue& aValue)
|
|
{
|
|
if (!mSheetPrincipal) {
|
|
NS_NOTREACHED("Codepaths that expect to parse URLs MUST pass in an "
|
|
"origin principal");
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (!ExpectSymbol('(', PR_FALSE))
|
|
return PR_FALSE;
|
|
if (!GetURLToken())
|
|
return PR_FALSE;
|
|
|
|
nsCSSToken* tk = &mToken;
|
|
if (eCSSToken_String != tk->mType && eCSSToken_URL != tk->mType)
|
|
return PR_FALSE;
|
|
|
|
nsString url = tk->mIdent;
|
|
if (!ExpectSymbol(')', PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
// Translate url into an absolute url if the url is relative to the
|
|
// style sheet.
|
|
nsCOMPtr<nsIURI> uri;
|
|
NS_NewURI(getter_AddRefs(uri), url, nsnull, mBaseURL);
|
|
|
|
nsStringBuffer* buffer = nsCSSValue::BufferFromString(url);
|
|
if (NS_UNLIKELY(!buffer)) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
nsCSSValue::URL *urlVal =
|
|
new nsCSSValue::URL(uri, buffer, mSheetURL, mSheetPrincipal);
|
|
|
|
buffer->Release();
|
|
if (NS_UNLIKELY(!urlVal)) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
aValue.SetURLValue(urlVal);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRInt32
|
|
CSSParserImpl::ParseChoice(nsCSSValue aValues[],
|
|
const nsCSSProperty aPropIDs[], PRInt32 aNumIDs)
|
|
{
|
|
PRInt32 found = 0;
|
|
nsAutoParseCompoundProperty compound(this);
|
|
|
|
PRInt32 loop;
|
|
for (loop = 0; loop < aNumIDs; loop++) {
|
|
// Try each property parser in order
|
|
PRInt32 hadFound = found;
|
|
PRInt32 index;
|
|
for (index = 0; index < aNumIDs; index++) {
|
|
PRInt32 bit = 1 << index;
|
|
if ((found & bit) == 0) {
|
|
if (ParseSingleValueProperty(aValues[index], aPropIDs[index])) {
|
|
found |= bit;
|
|
// It's more efficient to break since it will reset |hadFound|
|
|
// to |found|. Furthermore, ParseListStyle depends on our going
|
|
// through the properties in order for each value..
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (found == hadFound) { // found nothing new
|
|
break;
|
|
}
|
|
}
|
|
if (0 < found) {
|
|
if (1 == found) { // only first property
|
|
if (eCSSUnit_Inherit == aValues[0].GetUnit()) { // one inherit, all inherit
|
|
for (loop = 1; loop < aNumIDs; loop++) {
|
|
aValues[loop].SetInheritValue();
|
|
}
|
|
found = ((1 << aNumIDs) - 1);
|
|
}
|
|
else if (eCSSUnit_Initial == aValues[0].GetUnit()) { // one initial, all initial
|
|
for (loop = 1; loop < aNumIDs; loop++) {
|
|
aValues[loop].SetInitialValue();
|
|
}
|
|
found = ((1 << aNumIDs) - 1);
|
|
}
|
|
}
|
|
else { // more than one value, verify no inherits or initials
|
|
for (loop = 0; loop < aNumIDs; loop++) {
|
|
if (eCSSUnit_Inherit == aValues[loop].GetUnit()) {
|
|
found = -1;
|
|
break;
|
|
}
|
|
else if (eCSSUnit_Initial == aValues[loop].GetUnit()) {
|
|
found = -1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return found;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::AppendValue(nsCSSProperty aPropID, const nsCSSValue& aValue)
|
|
{
|
|
NS_ASSERTION(0 <= aPropID && aPropID < eCSSProperty_COUNT_no_shorthands,
|
|
"property out of range");
|
|
NS_ASSERTION(nsCSSProps::kTypeTable[aPropID] == eCSSType_Value,
|
|
nsPrintfCString(64, "type error (property=\'%s\')",
|
|
nsCSSProps::GetStringValue(aPropID).get()).get());
|
|
nsCSSValue& storage =
|
|
*static_cast<nsCSSValue*>(mTempData.PropertyAt(aPropID));
|
|
storage = aValue;
|
|
mTempData.SetPropertyBit(aPropID);
|
|
}
|
|
|
|
/**
|
|
* Parse a "box" property. Box properties have 1 to 4 values. When less
|
|
* than 4 values are provided a standard mapping is used to replicate
|
|
* existing values.
|
|
*/
|
|
PRBool
|
|
CSSParserImpl::ParseBoxProperties(nsCSSRect& aResult,
|
|
const nsCSSProperty aPropIDs[])
|
|
{
|
|
// Get up to four values for the property
|
|
PRInt32 count = 0;
|
|
nsCSSRect result;
|
|
NS_FOR_CSS_SIDES (index) {
|
|
if (! ParseSingleValueProperty(result.*(nsCSSRect::sides[index]),
|
|
aPropIDs[index])) {
|
|
break;
|
|
}
|
|
count++;
|
|
}
|
|
if ((count == 0) || (PR_FALSE == ExpectEndProperty())) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (1 < count) { // verify no more than single inherit or initial
|
|
NS_FOR_CSS_SIDES (index) {
|
|
nsCSSUnit unit = (result.*(nsCSSRect::sides[index])).GetUnit();
|
|
if (eCSSUnit_Inherit == unit || eCSSUnit_Initial == unit) {
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Provide missing values by replicating some of the values found
|
|
switch (count) {
|
|
case 1: // Make right == top
|
|
result.mRight = result.mTop;
|
|
case 2: // Make bottom == top
|
|
result.mBottom = result.mTop;
|
|
case 3: // Make left == right
|
|
result.mLeft = result.mRight;
|
|
}
|
|
|
|
NS_FOR_CSS_SIDES (index) {
|
|
mTempData.SetPropertyBit(aPropIDs[index]);
|
|
}
|
|
aResult = result;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseDirectionalBoxProperty(nsCSSProperty aProperty,
|
|
PRInt32 aSourceType)
|
|
{
|
|
const nsCSSProperty* subprops = nsCSSProps::SubpropertyEntryFor(aProperty);
|
|
NS_ASSERTION(subprops[3] == eCSSProperty_UNKNOWN,
|
|
"not box property with physical vs. logical cascading");
|
|
nsCSSValue value;
|
|
if (!ParseSingleValueProperty(value, subprops[0]) ||
|
|
!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
AppendValue(subprops[0], value);
|
|
nsCSSValue typeVal(aSourceType, eCSSUnit_Enumerated);
|
|
AppendValue(subprops[1], typeVal);
|
|
AppendValue(subprops[2], typeVal);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBoxCornerRadius(nsCSSProperty aPropID)
|
|
{
|
|
nsCSSValue dimenX, dimenY;
|
|
// required first value
|
|
if (! ParseNonNegativeVariant(dimenX, VARIANT_HLP, nsnull))
|
|
return PR_FALSE;
|
|
// optional second value (forbidden if first value is inherit/initial)
|
|
if (dimenX.GetUnit() == eCSSUnit_Inherit ||
|
|
dimenX.GetUnit() == eCSSUnit_Initial ||
|
|
! ParseNonNegativeVariant(dimenY, VARIANT_LP, nsnull))
|
|
dimenY = dimenX;
|
|
|
|
NS_ASSERTION(nsCSSProps::kTypeTable[aPropID] == eCSSType_ValuePair,
|
|
nsPrintfCString(64, "type error (property='%s')",
|
|
nsCSSProps::GetStringValue(aPropID).get())
|
|
.get());
|
|
nsCSSValuePair& storage =
|
|
*static_cast<nsCSSValuePair*>(mTempData.PropertyAt(aPropID));
|
|
storage.mXValue = dimenX;
|
|
storage.mYValue = dimenY;
|
|
mTempData.SetPropertyBit(aPropID);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBoxCornerRadii(nsCSSCornerSizes& aRadii,
|
|
const nsCSSProperty aPropIDs[])
|
|
{
|
|
// Rectangles are used as scratch storage.
|
|
// top => top-left, right => top-right,
|
|
// bottom => bottom-right, left => bottom-left.
|
|
nsCSSRect dimenX, dimenY;
|
|
PRInt32 countX = 0, countY = 0;
|
|
|
|
NS_FOR_CSS_SIDES (side) {
|
|
if (! ParseNonNegativeVariant(dimenX.*nsCSSRect::sides[side],
|
|
side > 0 ? VARIANT_LP : VARIANT_HLP, nsnull))
|
|
break;
|
|
countX++;
|
|
}
|
|
if (countX == 0)
|
|
return PR_FALSE;
|
|
|
|
if (ExpectSymbol('/', PR_TRUE)) {
|
|
NS_FOR_CSS_SIDES (side) {
|
|
if (! ParseNonNegativeVariant(dimenY.*nsCSSRect::sides[side],
|
|
VARIANT_LP, nsnull))
|
|
break;
|
|
countY++;
|
|
}
|
|
if (countY == 0)
|
|
return PR_FALSE;
|
|
}
|
|
if (!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
// if 'initial' or 'inherit' was used, it must be the only value
|
|
if (countX > 1 || countY > 0) {
|
|
nsCSSUnit unit = dimenX.mTop.GetUnit();
|
|
if (eCSSUnit_Inherit == unit || eCSSUnit_Initial == unit)
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// if we have no Y-values, use the X-values
|
|
if (countY == 0) {
|
|
dimenY = dimenX;
|
|
countY = countX;
|
|
}
|
|
|
|
// Provide missing values by replicating some of the values found
|
|
switch (countX) {
|
|
case 1: dimenX.mRight = dimenX.mTop; // top-right same as top-left, and
|
|
case 2: dimenX.mBottom = dimenX.mTop; // bottom-right same as top-left, and
|
|
case 3: dimenX.mLeft = dimenX.mRight; // bottom-left same as top-right
|
|
}
|
|
|
|
switch (countY) {
|
|
case 1: dimenY.mRight = dimenY.mTop; // top-right same as top-left, and
|
|
case 2: dimenY.mBottom = dimenY.mTop; // bottom-right same as top-left, and
|
|
case 3: dimenY.mLeft = dimenY.mRight; // bottom-left same as top-right
|
|
}
|
|
|
|
NS_FOR_CSS_SIDES(side) {
|
|
nsCSSValuePair& corner =
|
|
aRadii.GetFullCorner(NS_SIDE_TO_FULL_CORNER(side, PR_FALSE));
|
|
corner.mXValue = dimenX.*nsCSSRect::sides[side];
|
|
corner.mYValue = dimenY.*nsCSSRect::sides[side];
|
|
mTempData.SetPropertyBit(aPropIDs[side]);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// These must be in CSS order (top,right,bottom,left) for indexing to work
|
|
static const nsCSSProperty kBorderStyleIDs[] = {
|
|
eCSSProperty_border_top_style,
|
|
eCSSProperty_border_right_style_value,
|
|
eCSSProperty_border_bottom_style,
|
|
eCSSProperty_border_left_style_value
|
|
};
|
|
static const nsCSSProperty kBorderWidthIDs[] = {
|
|
eCSSProperty_border_top_width,
|
|
eCSSProperty_border_right_width_value,
|
|
eCSSProperty_border_bottom_width,
|
|
eCSSProperty_border_left_width_value
|
|
};
|
|
static const nsCSSProperty kBorderColorIDs[] = {
|
|
eCSSProperty_border_top_color,
|
|
eCSSProperty_border_right_color_value,
|
|
eCSSProperty_border_bottom_color,
|
|
eCSSProperty_border_left_color_value
|
|
};
|
|
static const nsCSSProperty kBorderRadiusIDs[] = {
|
|
eCSSProperty__moz_border_radius_topLeft,
|
|
eCSSProperty__moz_border_radius_topRight,
|
|
eCSSProperty__moz_border_radius_bottomRight,
|
|
eCSSProperty__moz_border_radius_bottomLeft
|
|
};
|
|
static const nsCSSProperty kOutlineRadiusIDs[] = {
|
|
eCSSProperty__moz_outline_radius_topLeft,
|
|
eCSSProperty__moz_outline_radius_topRight,
|
|
eCSSProperty__moz_outline_radius_bottomRight,
|
|
eCSSProperty__moz_outline_radius_bottomLeft
|
|
};
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseProperty(nsCSSProperty aPropID)
|
|
{
|
|
NS_ASSERTION(aPropID < eCSSProperty_COUNT, "index out of range");
|
|
|
|
switch (aPropID) { // handle shorthand or multiple properties
|
|
case eCSSProperty_background:
|
|
return ParseBackground();
|
|
case eCSSProperty_background_color:
|
|
return ParseBackgroundColor(PR_FALSE);
|
|
case eCSSProperty_background_position:
|
|
return ParseBackgroundPosition();
|
|
case eCSSProperty_background_attachment:
|
|
case eCSSProperty__moz_background_clip:
|
|
case eCSSProperty_background_image:
|
|
case eCSSProperty__moz_background_origin:
|
|
case eCSSProperty_background_repeat:
|
|
return ParseBackgroundList(aPropID);
|
|
case eCSSProperty_border:
|
|
return ParseBorderSide(kBorderTopIDs, PR_TRUE);
|
|
case eCSSProperty_border_color:
|
|
return ParseBorderColor();
|
|
case eCSSProperty_border_spacing:
|
|
return ParseBorderSpacing();
|
|
case eCSSProperty_border_style:
|
|
return ParseBorderStyle();
|
|
case eCSSProperty_border_bottom:
|
|
return ParseBorderSide(kBorderBottomIDs, PR_FALSE);
|
|
case eCSSProperty_border_end:
|
|
return ParseDirectionalBorderSide(kBorderEndIDs,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_left:
|
|
return ParseDirectionalBorderSide(kBorderLeftIDs,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_right:
|
|
return ParseDirectionalBorderSide(kBorderRightIDs,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_start:
|
|
return ParseDirectionalBorderSide(kBorderStartIDs,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_top:
|
|
return ParseBorderSide(kBorderTopIDs, PR_FALSE);
|
|
case eCSSProperty_border_bottom_colors:
|
|
return ParseBorderColors(&mTempData.mMargin.mBorderColors.mBottom,
|
|
aPropID);
|
|
case eCSSProperty_border_left_colors:
|
|
return ParseBorderColors(&mTempData.mMargin.mBorderColors.mLeft,
|
|
aPropID);
|
|
case eCSSProperty_border_right_colors:
|
|
return ParseBorderColors(&mTempData.mMargin.mBorderColors.mRight,
|
|
aPropID);
|
|
case eCSSProperty_border_top_colors:
|
|
return ParseBorderColors(&mTempData.mMargin.mBorderColors.mTop,
|
|
aPropID);
|
|
case eCSSProperty_border_image:
|
|
return ParseBorderImage();
|
|
case eCSSProperty_border_width:
|
|
return ParseBorderWidth();
|
|
case eCSSProperty_border_end_color:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_end_color,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_left_color:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_left_color,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_right_color:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_right_color,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_start_color:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_start_color,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_end_width:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_end_width,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_left_width:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_left_width,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_right_width:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_right_width,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_start_width:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_start_width,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_end_style:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_end_style,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_border_left_style:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_left_style,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_right_style:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_right_style,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_border_start_style:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_border_start_style,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty__moz_border_radius:
|
|
return ParseBoxCornerRadii(mTempData.mMargin.mBorderRadius,
|
|
kBorderRadiusIDs);
|
|
case eCSSProperty__moz_outline_radius:
|
|
return ParseBoxCornerRadii(mTempData.mMargin.mOutlineRadius,
|
|
kOutlineRadiusIDs);
|
|
|
|
case eCSSProperty__moz_border_radius_topLeft:
|
|
case eCSSProperty__moz_border_radius_topRight:
|
|
case eCSSProperty__moz_border_radius_bottomRight:
|
|
case eCSSProperty__moz_border_radius_bottomLeft:
|
|
case eCSSProperty__moz_outline_radius_topLeft:
|
|
case eCSSProperty__moz_outline_radius_topRight:
|
|
case eCSSProperty__moz_outline_radius_bottomRight:
|
|
case eCSSProperty__moz_outline_radius_bottomLeft:
|
|
return ParseBoxCornerRadius(aPropID);
|
|
|
|
case eCSSProperty_box_shadow:
|
|
return ParseBoxShadow();
|
|
case eCSSProperty_clip:
|
|
return ParseRect(mTempData.mDisplay.mClip, eCSSProperty_clip);
|
|
case eCSSProperty__moz_column_rule:
|
|
return ParseBorderSide(kColumnRuleIDs, PR_FALSE);
|
|
case eCSSProperty_content:
|
|
return ParseContent();
|
|
case eCSSProperty_counter_increment:
|
|
return ParseCounterData(&mTempData.mContent.mCounterIncrement,
|
|
aPropID);
|
|
case eCSSProperty_counter_reset:
|
|
return ParseCounterData(&mTempData.mContent.mCounterReset,
|
|
aPropID);
|
|
case eCSSProperty_cue:
|
|
return ParseCue();
|
|
case eCSSProperty_cursor:
|
|
return ParseCursor();
|
|
case eCSSProperty_font:
|
|
return ParseFont();
|
|
case eCSSProperty_image_region:
|
|
return ParseRect(mTempData.mList.mImageRegion,
|
|
eCSSProperty_image_region);
|
|
case eCSSProperty_list_style:
|
|
return ParseListStyle();
|
|
case eCSSProperty_margin:
|
|
return ParseMargin();
|
|
case eCSSProperty_margin_end:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_margin_end,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_margin_left:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_margin_left,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_margin_right:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_margin_right,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_margin_start:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_margin_start,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_outline:
|
|
return ParseOutline();
|
|
case eCSSProperty_overflow:
|
|
return ParseOverflow();
|
|
case eCSSProperty_padding:
|
|
return ParsePadding();
|
|
case eCSSProperty_padding_end:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_padding_end,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_padding_left:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_padding_left,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_padding_right:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_padding_right,
|
|
NS_BOXPROP_SOURCE_PHYSICAL);
|
|
case eCSSProperty_padding_start:
|
|
return ParseDirectionalBoxProperty(eCSSProperty_padding_start,
|
|
NS_BOXPROP_SOURCE_LOGICAL);
|
|
case eCSSProperty_pause:
|
|
return ParsePause();
|
|
case eCSSProperty_quotes:
|
|
return ParseQuotes();
|
|
case eCSSProperty_size:
|
|
return ParseSize();
|
|
case eCSSProperty_text_shadow:
|
|
return ParseTextShadow();
|
|
case eCSSProperty__moz_transform:
|
|
return ParseMozTransform();
|
|
case eCSSProperty__moz_transform_origin:
|
|
return ParseMozTransformOrigin();
|
|
|
|
#ifdef MOZ_SVG
|
|
case eCSSProperty_fill:
|
|
return ParsePaint(&mTempData.mSVG.mFill, eCSSProperty_fill);
|
|
case eCSSProperty_stroke:
|
|
return ParsePaint(&mTempData.mSVG.mStroke, eCSSProperty_stroke);
|
|
case eCSSProperty_stroke_dasharray:
|
|
return ParseDasharray();
|
|
case eCSSProperty_marker:
|
|
return ParseMarker();
|
|
#endif
|
|
|
|
// Strip out properties we use internally.
|
|
case eCSSProperty__x_system_font:
|
|
case eCSSProperty_margin_end_value:
|
|
case eCSSProperty_margin_left_value:
|
|
case eCSSProperty_margin_right_value:
|
|
case eCSSProperty_margin_start_value:
|
|
case eCSSProperty_margin_left_ltr_source:
|
|
case eCSSProperty_margin_left_rtl_source:
|
|
case eCSSProperty_margin_right_ltr_source:
|
|
case eCSSProperty_margin_right_rtl_source:
|
|
case eCSSProperty_padding_end_value:
|
|
case eCSSProperty_padding_left_value:
|
|
case eCSSProperty_padding_right_value:
|
|
case eCSSProperty_padding_start_value:
|
|
case eCSSProperty_padding_left_ltr_source:
|
|
case eCSSProperty_padding_left_rtl_source:
|
|
case eCSSProperty_padding_right_ltr_source:
|
|
case eCSSProperty_padding_right_rtl_source:
|
|
case eCSSProperty_border_end_color_value:
|
|
case eCSSProperty_border_left_color_value:
|
|
case eCSSProperty_border_right_color_value:
|
|
case eCSSProperty_border_start_color_value:
|
|
case eCSSProperty_border_left_color_ltr_source:
|
|
case eCSSProperty_border_left_color_rtl_source:
|
|
case eCSSProperty_border_right_color_ltr_source:
|
|
case eCSSProperty_border_right_color_rtl_source:
|
|
case eCSSProperty_border_end_style_value:
|
|
case eCSSProperty_border_left_style_value:
|
|
case eCSSProperty_border_right_style_value:
|
|
case eCSSProperty_border_start_style_value:
|
|
case eCSSProperty_border_left_style_ltr_source:
|
|
case eCSSProperty_border_left_style_rtl_source:
|
|
case eCSSProperty_border_right_style_ltr_source:
|
|
case eCSSProperty_border_right_style_rtl_source:
|
|
case eCSSProperty_border_end_width_value:
|
|
case eCSSProperty_border_left_width_value:
|
|
case eCSSProperty_border_right_width_value:
|
|
case eCSSProperty_border_start_width_value:
|
|
case eCSSProperty_border_left_width_ltr_source:
|
|
case eCSSProperty_border_left_width_rtl_source:
|
|
case eCSSProperty_border_right_width_ltr_source:
|
|
case eCSSProperty_border_right_width_rtl_source:
|
|
// The user can't use these
|
|
REPORT_UNEXPECTED(PEInaccessibleProperty2);
|
|
return PR_FALSE;
|
|
default: // must be single property
|
|
{
|
|
nsCSSValue value;
|
|
if (ParseSingleValueProperty(value, aPropID)) {
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(aPropID, value);
|
|
return PR_TRUE;
|
|
}
|
|
// XXX Report errors?
|
|
}
|
|
// XXX Report errors?
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Bits used in determining which background position info we have
|
|
#define BG_CENTER NS_STYLE_BG_POSITION_CENTER
|
|
#define BG_TOP NS_STYLE_BG_POSITION_TOP
|
|
#define BG_BOTTOM NS_STYLE_BG_POSITION_BOTTOM
|
|
#define BG_LEFT NS_STYLE_BG_POSITION_LEFT
|
|
#define BG_RIGHT NS_STYLE_BG_POSITION_RIGHT
|
|
#define BG_CTB (BG_CENTER | BG_TOP | BG_BOTTOM)
|
|
#define BG_CLR (BG_CENTER | BG_LEFT | BG_RIGHT)
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseSingleValueProperty(nsCSSValue& aValue,
|
|
nsCSSProperty aPropID)
|
|
{
|
|
switch (aPropID) {
|
|
case eCSSProperty_UNKNOWN:
|
|
case eCSSProperty_background:
|
|
case eCSSProperty_background_color:
|
|
case eCSSProperty_background_position:
|
|
case eCSSProperty_border:
|
|
case eCSSProperty_border_color:
|
|
case eCSSProperty_border_bottom_colors:
|
|
case eCSSProperty_border_image:
|
|
case eCSSProperty_border_left_colors:
|
|
case eCSSProperty_border_right_colors:
|
|
case eCSSProperty_border_end_color:
|
|
case eCSSProperty_border_left_color:
|
|
case eCSSProperty_border_right_color:
|
|
case eCSSProperty_border_start_color:
|
|
case eCSSProperty_border_end_style:
|
|
case eCSSProperty_border_left_style:
|
|
case eCSSProperty_border_right_style:
|
|
case eCSSProperty_border_start_style:
|
|
case eCSSProperty_border_end_width:
|
|
case eCSSProperty_border_left_width:
|
|
case eCSSProperty_border_right_width:
|
|
case eCSSProperty_border_start_width:
|
|
case eCSSProperty_border_top_colors:
|
|
case eCSSProperty_border_spacing:
|
|
case eCSSProperty_border_style:
|
|
case eCSSProperty_border_bottom:
|
|
case eCSSProperty_border_end:
|
|
case eCSSProperty_border_left:
|
|
case eCSSProperty_border_right:
|
|
case eCSSProperty_border_start:
|
|
case eCSSProperty_border_top:
|
|
case eCSSProperty_border_width:
|
|
case eCSSProperty__moz_border_radius:
|
|
case eCSSProperty__moz_border_radius_topLeft:
|
|
case eCSSProperty__moz_border_radius_topRight:
|
|
case eCSSProperty__moz_border_radius_bottomRight:
|
|
case eCSSProperty__moz_border_radius_bottomLeft:
|
|
case eCSSProperty_box_shadow:
|
|
case eCSSProperty_clip:
|
|
case eCSSProperty__moz_column_rule:
|
|
case eCSSProperty_content:
|
|
case eCSSProperty_counter_increment:
|
|
case eCSSProperty_counter_reset:
|
|
case eCSSProperty_cue:
|
|
case eCSSProperty_cursor:
|
|
case eCSSProperty_font:
|
|
case eCSSProperty_image_region:
|
|
case eCSSProperty_list_style:
|
|
case eCSSProperty_margin:
|
|
case eCSSProperty_margin_end:
|
|
case eCSSProperty_margin_left:
|
|
case eCSSProperty_margin_right:
|
|
case eCSSProperty_margin_start:
|
|
case eCSSProperty_outline:
|
|
case eCSSProperty__moz_outline_radius:
|
|
case eCSSProperty__moz_outline_radius_topLeft:
|
|
case eCSSProperty__moz_outline_radius_topRight:
|
|
case eCSSProperty__moz_outline_radius_bottomRight:
|
|
case eCSSProperty__moz_outline_radius_bottomLeft:
|
|
case eCSSProperty_overflow:
|
|
case eCSSProperty_padding:
|
|
case eCSSProperty_padding_end:
|
|
case eCSSProperty_padding_left:
|
|
case eCSSProperty_padding_right:
|
|
case eCSSProperty_padding_start:
|
|
case eCSSProperty_pause:
|
|
case eCSSProperty_quotes:
|
|
case eCSSProperty_size:
|
|
case eCSSProperty_text_shadow:
|
|
case eCSSProperty__moz_transform:
|
|
case eCSSProperty__moz_transform_origin:
|
|
case eCSSProperty_COUNT:
|
|
#ifdef MOZ_SVG
|
|
case eCSSProperty_fill:
|
|
case eCSSProperty_stroke:
|
|
case eCSSProperty_stroke_dasharray:
|
|
case eCSSProperty_marker:
|
|
#endif
|
|
NS_ERROR("not a single value property");
|
|
return PR_FALSE;
|
|
|
|
case eCSSProperty__x_system_font:
|
|
case eCSSProperty_margin_left_ltr_source:
|
|
case eCSSProperty_margin_left_rtl_source:
|
|
case eCSSProperty_margin_right_ltr_source:
|
|
case eCSSProperty_margin_right_rtl_source:
|
|
case eCSSProperty_padding_left_ltr_source:
|
|
case eCSSProperty_padding_left_rtl_source:
|
|
case eCSSProperty_padding_right_ltr_source:
|
|
case eCSSProperty_padding_right_rtl_source:
|
|
case eCSSProperty_border_left_color_ltr_source:
|
|
case eCSSProperty_border_left_color_rtl_source:
|
|
case eCSSProperty_border_right_color_ltr_source:
|
|
case eCSSProperty_border_right_color_rtl_source:
|
|
case eCSSProperty_border_left_style_ltr_source:
|
|
case eCSSProperty_border_left_style_rtl_source:
|
|
case eCSSProperty_border_right_style_ltr_source:
|
|
case eCSSProperty_border_right_style_rtl_source:
|
|
case eCSSProperty_border_left_width_ltr_source:
|
|
case eCSSProperty_border_left_width_rtl_source:
|
|
case eCSSProperty_border_right_width_ltr_source:
|
|
case eCSSProperty_border_right_width_rtl_source:
|
|
#ifdef MOZ_MATHML
|
|
case eCSSProperty_script_size_multiplier:
|
|
case eCSSProperty_script_min_size:
|
|
#endif
|
|
NS_ERROR("not currently parsed here");
|
|
return PR_FALSE;
|
|
|
|
case eCSSProperty_appearance:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kAppearanceKTable);
|
|
case eCSSProperty_azimuth:
|
|
return ParseAzimuth(aValue);
|
|
case eCSSProperty_background_attachment:
|
|
// Used only internally.
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBackgroundAttachmentKTable);
|
|
case eCSSProperty__moz_background_clip:
|
|
// Used only internally.
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBackgroundClipKTable);
|
|
case eCSSProperty_background_image:
|
|
// Used only internally.
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty__moz_background_inline_policy:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBackgroundInlinePolicyKTable);
|
|
case eCSSProperty__moz_background_origin:
|
|
// Used only internally.
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBackgroundOriginKTable);
|
|
case eCSSProperty_background_repeat:
|
|
// Used only internally.
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBackgroundRepeatKTable);
|
|
case eCSSProperty_binding:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_border_collapse:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBorderCollapseKTable);
|
|
case eCSSProperty_border_bottom_color:
|
|
case eCSSProperty_border_end_color_value: // for internal use
|
|
case eCSSProperty_border_left_color_value: // for internal use
|
|
case eCSSProperty_border_right_color_value: // for internal use
|
|
case eCSSProperty_border_start_color_value: // for internal use
|
|
case eCSSProperty_border_top_color:
|
|
case eCSSProperty__moz_column_rule_color:
|
|
return ParseVariant(aValue, VARIANT_HCK,
|
|
nsCSSProps::kBorderColorKTable);
|
|
case eCSSProperty_border_bottom_style:
|
|
case eCSSProperty_border_end_style_value: // for internal use
|
|
case eCSSProperty_border_left_style_value: // for internal use
|
|
case eCSSProperty_border_right_style_value: // for internal use
|
|
case eCSSProperty_border_start_style_value: // for internal use
|
|
case eCSSProperty_border_top_style:
|
|
case eCSSProperty__moz_column_rule_style:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kBorderStyleKTable);
|
|
case eCSSProperty_border_bottom_width:
|
|
case eCSSProperty_border_end_width_value: // for internal use
|
|
case eCSSProperty_border_left_width_value: // for internal use
|
|
case eCSSProperty_border_right_width_value: // for internal use
|
|
case eCSSProperty_border_start_width_value: // for internal use
|
|
case eCSSProperty_border_top_width:
|
|
case eCSSProperty__moz_column_rule_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HKL,
|
|
nsCSSProps::kBorderWidthKTable);
|
|
case eCSSProperty__moz_column_count:
|
|
// Need to reject 0 in addition to negatives. If we accept 0, we
|
|
// need to change NS_STYLE_COLUMN_COUNT_AUTO to something else.
|
|
return ParsePositiveNonZeroVariant(aValue, VARIANT_AHI, nsnull);
|
|
case eCSSProperty__moz_column_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_AHL, nsnull);
|
|
case eCSSProperty__moz_column_gap:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HL | VARIANT_NORMAL, nsnull);
|
|
case eCSSProperty_bottom:
|
|
case eCSSProperty_top:
|
|
case eCSSProperty_left:
|
|
case eCSSProperty_right:
|
|
return ParseVariant(aValue, VARIANT_AHLP, nsnull);
|
|
case eCSSProperty_box_align:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBoxAlignKTable);
|
|
case eCSSProperty_box_direction:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBoxDirectionKTable);
|
|
case eCSSProperty_box_flex:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HN, nsnull);
|
|
case eCSSProperty_box_orient:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBoxOrientKTable);
|
|
case eCSSProperty_box_pack:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBoxPackKTable);
|
|
case eCSSProperty_box_ordinal_group:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HI, nsnull);
|
|
#ifdef MOZ_SVG
|
|
case eCSSProperty_clip_path:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_clip_rule:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kFillRuleKTable);
|
|
case eCSSProperty_color_interpolation:
|
|
case eCSSProperty_color_interpolation_filters:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kColorInterpolationKTable);
|
|
case eCSSProperty_dominant_baseline:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kDominantBaselineKTable);
|
|
case eCSSProperty_fill_opacity:
|
|
return ParseVariant(aValue, VARIANT_HN,
|
|
nsnull);
|
|
case eCSSProperty_fill_rule:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kFillRuleKTable);
|
|
case eCSSProperty_filter:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_flood_color:
|
|
return ParseVariant(aValue, VARIANT_HC, nsnull);
|
|
case eCSSProperty_flood_opacity:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull);
|
|
case eCSSProperty_image_rendering:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kImageRenderingKTable);
|
|
case eCSSProperty_lighting_color:
|
|
return ParseVariant(aValue, VARIANT_HC, nsnull);
|
|
case eCSSProperty_marker_end:
|
|
case eCSSProperty_marker_mid:
|
|
case eCSSProperty_marker_start:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_mask:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_pointer_events:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kPointerEventsKTable);
|
|
case eCSSProperty_shape_rendering:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kShapeRenderingKTable);
|
|
case eCSSProperty_stop_color:
|
|
return ParseVariant(aValue, VARIANT_HC,
|
|
nsnull);
|
|
case eCSSProperty_stop_opacity:
|
|
return ParseVariant(aValue, VARIANT_HN,
|
|
nsnull);
|
|
case eCSSProperty_stroke_dashoffset:
|
|
return ParseVariant(aValue, VARIANT_HLPN,
|
|
nsnull);
|
|
case eCSSProperty_stroke_linecap:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kStrokeLinecapKTable);
|
|
case eCSSProperty_stroke_linejoin:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kStrokeLinejoinKTable);
|
|
case eCSSProperty_stroke_miterlimit:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull) &&
|
|
// Enforce the restriction that the value is greater than 1.
|
|
(aValue.GetUnit() != eCSSUnit_Number ||
|
|
aValue.GetFloatValue() >= 1.0f);
|
|
case eCSSProperty_stroke_opacity:
|
|
return ParseVariant(aValue, VARIANT_HN,
|
|
nsnull);
|
|
case eCSSProperty_stroke_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HLPN, nsnull);
|
|
case eCSSProperty_text_anchor:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kTextAnchorKTable);
|
|
case eCSSProperty_text_rendering:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kTextRenderingKTable);
|
|
#endif
|
|
case eCSSProperty_box_sizing:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kBoxSizingKTable);
|
|
case eCSSProperty_height:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_AHLP, nsnull);
|
|
case eCSSProperty_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_AHKLP,
|
|
nsCSSProps::kWidthKTable);
|
|
case eCSSProperty_force_broken_image_icon:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HI, nsnull);
|
|
case eCSSProperty_caption_side:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kCaptionSideKTable);
|
|
case eCSSProperty_clear:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kClearKTable);
|
|
case eCSSProperty_color:
|
|
return ParseVariant(aValue, VARIANT_HC, nsnull);
|
|
case eCSSProperty_cue_after:
|
|
case eCSSProperty_cue_before:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_direction:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kDirectionKTable);
|
|
case eCSSProperty_display:
|
|
if (ParseVariant(aValue, VARIANT_HOK, nsCSSProps::kDisplayKTable)) {
|
|
if (aValue.GetUnit() == eCSSUnit_Enumerated) {
|
|
switch (aValue.GetIntValue()) {
|
|
case NS_STYLE_DISPLAY_MARKER: // bug 2055
|
|
case NS_STYLE_DISPLAY_RUN_IN: // bug 2056
|
|
case NS_STYLE_DISPLAY_COMPACT: // bug 14983
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
case eCSSProperty_elevation:
|
|
return ParseVariant(aValue, VARIANT_HK | VARIANT_ANGLE,
|
|
nsCSSProps::kElevationKTable);
|
|
case eCSSProperty_empty_cells:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kEmptyCellsKTable);
|
|
case eCSSProperty_float:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kFloatKTable);
|
|
case eCSSProperty_float_edge:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kFloatEdgeKTable);
|
|
case eCSSProperty_font_family:
|
|
return ParseFamily(aValue);
|
|
case eCSSProperty_font_size:
|
|
return ParseNonNegativeVariant(aValue,
|
|
VARIANT_HKLP | VARIANT_SYSFONT,
|
|
nsCSSProps::kFontSizeKTable);
|
|
case eCSSProperty_font_size_adjust:
|
|
return ParseVariant(aValue, VARIANT_HON | VARIANT_SYSFONT,
|
|
nsnull);
|
|
case eCSSProperty_font_stretch:
|
|
return ParseVariant(aValue, VARIANT_HMK | VARIANT_SYSFONT,
|
|
nsCSSProps::kFontStretchKTable);
|
|
case eCSSProperty_font_style:
|
|
return ParseVariant(aValue, VARIANT_HMK | VARIANT_SYSFONT,
|
|
nsCSSProps::kFontStyleKTable);
|
|
case eCSSProperty_font_variant:
|
|
return ParseVariant(aValue, VARIANT_HMK | VARIANT_SYSFONT,
|
|
nsCSSProps::kFontVariantKTable);
|
|
case eCSSProperty_font_weight:
|
|
return ParseFontWeight(aValue);
|
|
case eCSSProperty_ime_mode:
|
|
return ParseVariant(aValue, VARIANT_AHK | VARIANT_NORMAL,
|
|
nsCSSProps::kIMEModeKTable);
|
|
case eCSSProperty_letter_spacing:
|
|
case eCSSProperty_word_spacing:
|
|
return ParseVariant(aValue, VARIANT_HL | VARIANT_NORMAL, nsnull);
|
|
case eCSSProperty_line_height:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HLPN | VARIANT_KEYWORD | VARIANT_NORMAL | VARIANT_SYSFONT, nsCSSProps::kLineHeightKTable);
|
|
case eCSSProperty_list_style_image:
|
|
return ParseVariant(aValue, VARIANT_HUO, nsnull);
|
|
case eCSSProperty_list_style_position:
|
|
return ParseVariant(aValue, VARIANT_HK, nsCSSProps::kListStylePositionKTable);
|
|
case eCSSProperty_list_style_type:
|
|
return ParseVariant(aValue, VARIANT_HOK, nsCSSProps::kListStyleKTable);
|
|
case eCSSProperty_margin_bottom:
|
|
case eCSSProperty_margin_end_value: // for internal use
|
|
case eCSSProperty_margin_left_value: // for internal use
|
|
case eCSSProperty_margin_right_value: // for internal use
|
|
case eCSSProperty_margin_start_value: // for internal use
|
|
case eCSSProperty_margin_top:
|
|
return ParseVariant(aValue, VARIANT_AHLP, nsnull);
|
|
case eCSSProperty_marker_offset:
|
|
return ParseVariant(aValue, VARIANT_AHL, nsnull);
|
|
case eCSSProperty_marks:
|
|
return ParseMarks(aValue);
|
|
case eCSSProperty_max_height:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HLPO, nsnull);
|
|
case eCSSProperty_max_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HKLPO,
|
|
nsCSSProps::kWidthKTable);
|
|
case eCSSProperty_min_height:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HLP, nsnull);
|
|
case eCSSProperty_min_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HKLP,
|
|
nsCSSProps::kWidthKTable);
|
|
case eCSSProperty_opacity:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull);
|
|
case eCSSProperty_orphans:
|
|
case eCSSProperty_widows:
|
|
return ParsePositiveNonZeroVariant(aValue, VARIANT_HI, nsnull);
|
|
case eCSSProperty_outline_color:
|
|
return ParseVariant(aValue, VARIANT_HCK,
|
|
nsCSSProps::kOutlineColorKTable);
|
|
case eCSSProperty_outline_style:
|
|
return ParseVariant(aValue, VARIANT_HOK | VARIANT_AUTO,
|
|
nsCSSProps::kOutlineStyleKTable);
|
|
case eCSSProperty_outline_width:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HKL,
|
|
nsCSSProps::kBorderWidthKTable);
|
|
case eCSSProperty_outline_offset:
|
|
return ParseVariant(aValue, VARIANT_HL, nsnull);
|
|
case eCSSProperty_overflow_x:
|
|
case eCSSProperty_overflow_y:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kOverflowSubKTable);
|
|
case eCSSProperty_padding_bottom:
|
|
case eCSSProperty_padding_end_value: // for internal use
|
|
case eCSSProperty_padding_left_value: // for internal use
|
|
case eCSSProperty_padding_right_value: // for internal use
|
|
case eCSSProperty_padding_start_value: // for internal use
|
|
case eCSSProperty_padding_top:
|
|
return ParseNonNegativeVariant(aValue, VARIANT_HLP, nsnull);
|
|
case eCSSProperty_page:
|
|
return ParseVariant(aValue, VARIANT_AUTO | VARIANT_IDENTIFIER, nsnull);
|
|
case eCSSProperty_page_break_after:
|
|
case eCSSProperty_page_break_before:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kPageBreakKTable);
|
|
case eCSSProperty_page_break_inside:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kPageBreakInsideKTable);
|
|
case eCSSProperty_pause_after:
|
|
case eCSSProperty_pause_before:
|
|
return ParseVariant(aValue, VARIANT_HTP, nsnull);
|
|
case eCSSProperty_pitch:
|
|
return ParseVariant(aValue, VARIANT_HKF, nsCSSProps::kPitchKTable);
|
|
case eCSSProperty_pitch_range:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull);
|
|
case eCSSProperty_position:
|
|
return ParseVariant(aValue, VARIANT_HK, nsCSSProps::kPositionKTable);
|
|
case eCSSProperty_richness:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull);
|
|
#ifdef MOZ_MATHML
|
|
// script-level can take Integer or Number values, but only Integer ("relative")
|
|
// values can be specified in a style sheet. Also we only allow this property
|
|
// when unsafe rules are enabled, because otherwise it could interfere
|
|
// with rulenode optimizations if used in a non-MathML-enabled document.
|
|
case eCSSProperty_script_level:
|
|
if (!mUnsafeRulesEnabled)
|
|
return PR_FALSE;
|
|
return ParseVariant(aValue, VARIANT_HI, nsnull);
|
|
#endif
|
|
case eCSSProperty_speak:
|
|
return ParseVariant(aValue, VARIANT_HMK | VARIANT_NONE,
|
|
nsCSSProps::kSpeakKTable);
|
|
case eCSSProperty_speak_header:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kSpeakHeaderKTable);
|
|
case eCSSProperty_speak_numeral:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kSpeakNumeralKTable);
|
|
case eCSSProperty_speak_punctuation:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kSpeakPunctuationKTable);
|
|
case eCSSProperty_speech_rate:
|
|
return ParseVariant(aValue, VARIANT_HN | VARIANT_KEYWORD,
|
|
nsCSSProps::kSpeechRateKTable);
|
|
case eCSSProperty_stack_sizing:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kStackSizingKTable);
|
|
case eCSSProperty_stress:
|
|
return ParseVariant(aValue, VARIANT_HN, nsnull);
|
|
case eCSSProperty_table_layout:
|
|
return ParseVariant(aValue, VARIANT_AHK,
|
|
nsCSSProps::kTableLayoutKTable);
|
|
case eCSSProperty_text_align:
|
|
// When we support aligning on a string, we can parse text-align
|
|
// as a string....
|
|
return ParseVariant(aValue, VARIANT_HK /* | VARIANT_STRING */,
|
|
nsCSSProps::kTextAlignKTable);
|
|
case eCSSProperty_text_decoration:
|
|
return ParseTextDecoration(aValue);
|
|
case eCSSProperty_text_indent:
|
|
return ParseVariant(aValue, VARIANT_HLP, nsnull);
|
|
case eCSSProperty_text_transform:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kTextTransformKTable);
|
|
case eCSSProperty_unicode_bidi:
|
|
return ParseVariant(aValue, VARIANT_HMK,
|
|
nsCSSProps::kUnicodeBidiKTable);
|
|
case eCSSProperty_user_focus:
|
|
return ParseVariant(aValue, VARIANT_HMK | VARIANT_NONE,
|
|
nsCSSProps::kUserFocusKTable);
|
|
case eCSSProperty_user_input:
|
|
return ParseVariant(aValue, VARIANT_AHK | VARIANT_NONE,
|
|
nsCSSProps::kUserInputKTable);
|
|
case eCSSProperty_user_modify:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kUserModifyKTable);
|
|
case eCSSProperty_user_select:
|
|
return ParseVariant(aValue, VARIANT_AHK | VARIANT_NONE,
|
|
nsCSSProps::kUserSelectKTable);
|
|
case eCSSProperty_vertical_align:
|
|
return ParseVariant(aValue, VARIANT_HKLP,
|
|
nsCSSProps::kVerticalAlignKTable);
|
|
case eCSSProperty_visibility:
|
|
return ParseVariant(aValue, VARIANT_HK,
|
|
nsCSSProps::kVisibilityKTable);
|
|
case eCSSProperty_voice_family:
|
|
return ParseFamily(aValue);
|
|
case eCSSProperty_volume:
|
|
return ParseVariant(aValue, VARIANT_HPN | VARIANT_KEYWORD,
|
|
nsCSSProps::kVolumeKTable);
|
|
case eCSSProperty_white_space:
|
|
return ParseVariant(aValue, VARIANT_HMK,
|
|
nsCSSProps::kWhitespaceKTable);
|
|
case eCSSProperty__moz_window_shadow:
|
|
return ParseVariant(aValue, VARIANT_HOK,
|
|
nsCSSProps::kWindowShadowKTable);
|
|
case eCSSProperty_word_wrap:
|
|
return ParseVariant(aValue, VARIANT_HMK,
|
|
nsCSSProps::kWordwrapKTable);
|
|
case eCSSProperty_z_index:
|
|
return ParseVariant(aValue, VARIANT_AHI, nsnull);
|
|
case eCSSPropertyExtra_x_none_value:
|
|
return ParseVariant(aValue, VARIANT_NONE | VARIANT_INHERIT, nsnull);
|
|
}
|
|
// explicitly do NOT have a default case to let the compiler
|
|
// help find missing properties
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// nsFont::EnumerateFamilies callback for ParseFontDescriptorValue
|
|
struct NS_STACK_CLASS ExtractFirstFamilyData {
|
|
nsAutoString mFamilyName;
|
|
PRBool mGood;
|
|
ExtractFirstFamilyData() : mFamilyName(), mGood(PR_FALSE) {}
|
|
};
|
|
|
|
static PRBool
|
|
ExtractFirstFamily(const nsString& aFamily,
|
|
PRBool aGeneric,
|
|
void* aData)
|
|
{
|
|
ExtractFirstFamilyData* realData = (ExtractFirstFamilyData*) aData;
|
|
if (aGeneric || realData->mFamilyName.Length() > 0) {
|
|
realData->mGood = PR_FALSE;
|
|
return PR_FALSE;
|
|
}
|
|
realData->mFamilyName.Assign(aFamily);
|
|
realData->mGood = PR_TRUE;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// font-descriptor: descriptor ':' value ';'
|
|
// caller has advanced mToken to point at the descriptor
|
|
PRBool
|
|
CSSParserImpl::ParseFontDescriptorValue(nsCSSFontDesc aDescID,
|
|
nsCSSValue& aValue)
|
|
{
|
|
switch (aDescID) {
|
|
// These four are similar to the properties of the same name,
|
|
// possibly with more restrictions on the values they can take.
|
|
case eCSSFontDesc_Family: {
|
|
if (!ParseFamily(aValue) ||
|
|
aValue.GetUnit() != eCSSUnit_Families)
|
|
return PR_FALSE;
|
|
|
|
// the style parameters to the nsFont constructor are ignored,
|
|
// because it's only being used to call EnumerateFamilies
|
|
nsAutoString valueStr;
|
|
aValue.GetStringValue(valueStr);
|
|
nsFont font(valueStr, 0, 0, 0, 0, 0, 0);
|
|
ExtractFirstFamilyData dat;
|
|
|
|
font.EnumerateFamilies(ExtractFirstFamily, (void*) &dat);
|
|
if (!dat.mGood)
|
|
return PR_FALSE;
|
|
|
|
aValue.SetStringValue(dat.mFamilyName, eCSSUnit_String);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
case eCSSFontDesc_Style:
|
|
// property is VARIANT_HMK|VARIANT_SYSFONT
|
|
return ParseVariant(aValue, VARIANT_KEYWORD | VARIANT_NORMAL,
|
|
nsCSSProps::kFontStyleKTable);
|
|
|
|
case eCSSFontDesc_Weight:
|
|
return (ParseFontWeight(aValue) &&
|
|
aValue.GetUnit() != eCSSUnit_Inherit &&
|
|
aValue.GetUnit() != eCSSUnit_Initial &&
|
|
(aValue.GetUnit() != eCSSUnit_Enumerated ||
|
|
(aValue.GetIntValue() != NS_STYLE_FONT_WEIGHT_BOLDER &&
|
|
aValue.GetIntValue() != NS_STYLE_FONT_WEIGHT_LIGHTER)));
|
|
|
|
case eCSSFontDesc_Stretch:
|
|
// property is VARIANT_HMK|VARIANT_SYSFONT
|
|
return (ParseVariant(aValue, VARIANT_KEYWORD | VARIANT_NORMAL,
|
|
nsCSSProps::kFontStretchKTable) &&
|
|
(aValue.GetUnit() != eCSSUnit_Enumerated ||
|
|
(aValue.GetIntValue() != NS_STYLE_FONT_STRETCH_WIDER &&
|
|
aValue.GetIntValue() != NS_STYLE_FONT_STRETCH_NARROWER)));
|
|
|
|
// These two are unique to @font-face and have their own special grammar.
|
|
case eCSSFontDesc_Src:
|
|
return ParseFontSrc(aValue);
|
|
|
|
case eCSSFontDesc_UnicodeRange:
|
|
return ParseFontRanges(aValue);
|
|
|
|
case eCSSFontDesc_UNKNOWN:
|
|
case eCSSFontDesc_COUNT:
|
|
NS_NOTREACHED("bad nsCSSFontDesc code");
|
|
}
|
|
// explicitly do NOT have a default case to let the compiler
|
|
// help find missing descriptors
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::InitBoxPropsAsPhysical(const nsCSSProperty *aSourceProperties)
|
|
{
|
|
nsCSSValue physical(NS_BOXPROP_SOURCE_PHYSICAL, eCSSUnit_Enumerated);
|
|
for (const nsCSSProperty *prop = aSourceProperties;
|
|
*prop != eCSSProperty_UNKNOWN; ++prop) {
|
|
AppendValue(*prop, physical);
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseAzimuth(nsCSSValue& aValue)
|
|
{
|
|
if (ParseVariant(aValue, VARIANT_HK | VARIANT_ANGLE,
|
|
nsCSSProps::kAzimuthKTable)) {
|
|
if (eCSSUnit_Enumerated == aValue.GetUnit()) {
|
|
PRInt32 intValue = aValue.GetIntValue();
|
|
if ((NS_STYLE_AZIMUTH_LEFT_SIDE <= intValue) &&
|
|
(intValue <= NS_STYLE_AZIMUTH_BEHIND)) { // look for optional modifier
|
|
nsCSSValue modifier;
|
|
if (ParseEnum(modifier, nsCSSProps::kAzimuthKTable)) {
|
|
PRInt32 enumValue = modifier.GetIntValue();
|
|
if (((intValue == NS_STYLE_AZIMUTH_BEHIND) &&
|
|
(NS_STYLE_AZIMUTH_LEFT_SIDE <= enumValue) && (enumValue <= NS_STYLE_AZIMUTH_RIGHT_SIDE)) ||
|
|
((enumValue == NS_STYLE_AZIMUTH_BEHIND) &&
|
|
(NS_STYLE_AZIMUTH_LEFT_SIDE <= intValue) && (intValue <= NS_STYLE_AZIMUTH_RIGHT_SIDE))) {
|
|
aValue.SetIntValue(intValue | enumValue, eCSSUnit_Enumerated);
|
|
return PR_TRUE;
|
|
}
|
|
// Put the unknown identifier back and return
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
static nsCSSValue
|
|
BoxPositionMaskToCSSValue(PRInt32 aMask, PRBool isX)
|
|
{
|
|
PRInt32 val = NS_STYLE_BG_POSITION_CENTER;
|
|
if (isX) {
|
|
if (aMask & BG_LEFT) {
|
|
val = NS_STYLE_BG_POSITION_LEFT;
|
|
}
|
|
else if (aMask & BG_RIGHT) {
|
|
val = NS_STYLE_BG_POSITION_RIGHT;
|
|
}
|
|
}
|
|
else {
|
|
if (aMask & BG_TOP) {
|
|
val = NS_STYLE_BG_POSITION_TOP;
|
|
}
|
|
else if (aMask & BG_BOTTOM) {
|
|
val = NS_STYLE_BG_POSITION_BOTTOM;
|
|
}
|
|
}
|
|
|
|
return nsCSSValue(val, eCSSUnit_Enumerated);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBackground()
|
|
{
|
|
nsAutoParseCompoundProperty compound(this);
|
|
|
|
// These two are set through side-effects of ParseBackgroundItem.
|
|
mTempData.SetPropertyBit(eCSSProperty_background_color);
|
|
mTempData.mColor.mBackColor.mXValue.SetColorValue(NS_RGBA(0, 0, 0, 0));
|
|
mTempData.mColor.mBackColor.mYValue.SetColorValue(NS_RGBA(0, 0, 0, 0));
|
|
|
|
BackgroundItem bgitem;
|
|
nsCSSValuePairList *positionHead = nsnull, **positionTail = &positionHead;
|
|
static const BackgroundItemSimpleValueInfo simpleValues[] = {
|
|
{ &BackgroundItem::mImage, eCSSProperty_background_image },
|
|
{ &BackgroundItem::mRepeat, eCSSProperty_background_repeat },
|
|
{ &BackgroundItem::mAttachment, eCSSProperty_background_attachment },
|
|
{ &BackgroundItem::mClip, eCSSProperty__moz_background_clip },
|
|
{ &BackgroundItem::mOrigin, eCSSProperty__moz_background_origin }
|
|
};
|
|
nsCSSValueList *simpleHeads[NS_ARRAY_LENGTH(simpleValues)];
|
|
nsCSSValueList **simpleTails[NS_ARRAY_LENGTH(simpleValues)];
|
|
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(simpleValues); ++i) {
|
|
simpleHeads[i] = nsnull;
|
|
simpleTails[i] = &simpleHeads[i];
|
|
}
|
|
for (;;) {
|
|
if (!ParseBackgroundItem(bgitem, !positionHead)) {
|
|
break;
|
|
}
|
|
nsCSSValuePairList *positionItem = new nsCSSValuePairList;
|
|
if (!positionItem) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
positionItem->mXValue = bgitem.mPosition.mXValue;
|
|
positionItem->mYValue = bgitem.mPosition.mYValue;
|
|
*positionTail = positionItem;
|
|
positionTail = &positionItem->mNext;
|
|
|
|
PRBool fail = PR_FALSE;
|
|
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(simpleValues); ++i) {
|
|
nsCSSValueList *item = new nsCSSValueList;
|
|
if (!item) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
fail = PR_TRUE;
|
|
break;
|
|
}
|
|
item->mValue = bgitem.*(simpleValues[i].member);
|
|
*simpleTails[i] = item;
|
|
simpleTails[i] = &item->mNext;
|
|
}
|
|
if (fail) {
|
|
break;
|
|
}
|
|
|
|
if (!bgitem.mLastItem && ExpectSymbol(',', PR_TRUE)) {
|
|
continue;
|
|
}
|
|
if (!ExpectEndProperty()) {
|
|
break;
|
|
}
|
|
|
|
mTempData.mColor.mBackPosition = positionHead;
|
|
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(simpleValues); ++i) {
|
|
nsCSSValueList **source = static_cast<nsCSSValueList**>(
|
|
mTempData.PropertyAt(simpleValues[i].propID));
|
|
*source = simpleHeads[i];
|
|
}
|
|
|
|
mTempData.SetPropertyBit(eCSSProperty_background_image);
|
|
mTempData.SetPropertyBit(eCSSProperty_background_repeat);
|
|
mTempData.SetPropertyBit(eCSSProperty_background_attachment);
|
|
mTempData.SetPropertyBit(eCSSProperty_background_position);
|
|
mTempData.SetPropertyBit(eCSSProperty__moz_background_clip);
|
|
mTempData.SetPropertyBit(eCSSProperty__moz_background_origin);
|
|
return PR_TRUE;
|
|
}
|
|
delete positionHead;
|
|
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(simpleValues); ++i) {
|
|
delete simpleHeads[i];
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Parse one item of the background shorthand property.
|
|
PRBool
|
|
CSSParserImpl::ParseBackgroundItem(CSSParserImpl::BackgroundItem& aItem,
|
|
PRBool aFirstItem)
|
|
{
|
|
// Fill in the values that the shorthand will set if we don't find
|
|
// other values.
|
|
aItem.mImage.SetNoneValue();
|
|
aItem.mRepeat.SetIntValue(NS_STYLE_BG_REPEAT_XY, eCSSUnit_Enumerated);
|
|
aItem.mAttachment.SetIntValue(NS_STYLE_BG_ATTACHMENT_SCROLL,
|
|
eCSSUnit_Enumerated);
|
|
aItem.mPosition.mXValue.SetPercentValue(0.0f);
|
|
aItem.mPosition.mYValue.SetPercentValue(0.0f);
|
|
aItem.mClip.SetIntValue(NS_STYLE_BG_CLIP_BORDER, eCSSUnit_Enumerated);
|
|
aItem.mOrigin.SetIntValue(NS_STYLE_BG_ORIGIN_PADDING, eCSSUnit_Enumerated);
|
|
aItem.mLastItem = PR_FALSE;
|
|
|
|
PRBool haveColor = PR_FALSE,
|
|
haveImage = PR_FALSE,
|
|
haveRepeat = PR_FALSE,
|
|
haveAttach = PR_FALSE,
|
|
havePosition = PR_FALSE,
|
|
haveSomething = PR_FALSE;
|
|
while (GetToken(PR_TRUE)) {
|
|
nsCSSTokenType tt = mToken.mType;
|
|
UngetToken(); // ...but we'll still cheat and use mToken
|
|
if (tt == eCSSToken_Symbol) {
|
|
// ExpectEndProperty only looks for symbols, and nothing else will
|
|
// show up as one.
|
|
break;
|
|
}
|
|
|
|
if (tt == eCSSToken_Ident) {
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(mToken.mIdent);
|
|
PRInt32 dummy;
|
|
if (keyword == eCSSKeyword_inherit ||
|
|
keyword == eCSSKeyword__moz_initial) {
|
|
if (haveSomething || !aFirstItem)
|
|
return PR_FALSE;
|
|
haveColor = haveImage = haveRepeat = haveAttach = havePosition =
|
|
PR_TRUE;
|
|
GetToken(PR_TRUE); // undo the UngetToken above
|
|
nsCSSValue val;
|
|
if (keyword == eCSSKeyword_inherit) {
|
|
val.SetInheritValue();
|
|
} else {
|
|
val.SetInitialValue();
|
|
}
|
|
mTempData.mColor.mBackColor.SetBothValuesTo(val);
|
|
aItem.mImage = val;
|
|
aItem.mRepeat = val;
|
|
aItem.mAttachment = val;
|
|
aItem.mPosition.SetBothValuesTo(val);
|
|
aItem.mClip = val;
|
|
aItem.mOrigin = val;
|
|
aItem.mLastItem = PR_TRUE;
|
|
haveSomething = PR_TRUE;
|
|
break;
|
|
} else if (keyword == eCSSKeyword_none) {
|
|
if (haveImage)
|
|
return PR_FALSE;
|
|
haveImage = PR_TRUE;
|
|
if (!ParseSingleValueProperty(aItem.mImage,
|
|
eCSSProperty_background_image)) {
|
|
NS_NOTREACHED("should be able to parse");
|
|
return PR_FALSE;
|
|
}
|
|
} else if (nsCSSProps::FindKeyword(keyword,
|
|
nsCSSProps::kBackgroundAttachmentKTable, dummy)) {
|
|
if (haveAttach)
|
|
return PR_FALSE;
|
|
haveAttach = PR_TRUE;
|
|
if (!ParseSingleValueProperty(aItem.mAttachment,
|
|
eCSSProperty_background_attachment)) {
|
|
NS_NOTREACHED("should be able to parse");
|
|
return PR_FALSE;
|
|
}
|
|
} else if (nsCSSProps::FindKeyword(keyword,
|
|
nsCSSProps::kBackgroundRepeatKTable, dummy)) {
|
|
if (haveRepeat)
|
|
return PR_FALSE;
|
|
haveRepeat = PR_TRUE;
|
|
if (!ParseSingleValueProperty(aItem.mRepeat,
|
|
eCSSProperty_background_repeat)) {
|
|
NS_NOTREACHED("should be able to parse");
|
|
return PR_FALSE;
|
|
}
|
|
} else if (nsCSSProps::FindKeyword(keyword,
|
|
nsCSSProps::kBackgroundPositionKTable, dummy)) {
|
|
if (havePosition)
|
|
return PR_FALSE;
|
|
havePosition = PR_TRUE;
|
|
if (!ParseBoxPositionValues(aItem.mPosition)) {
|
|
return PR_FALSE;
|
|
}
|
|
#if 0
|
|
// This is commented out for now until we change
|
|
// -moz-background-clip to background-clip, -moz-background-origin
|
|
// to background-origin, change their value names to *-box, and add
|
|
// support for content-box on background-clip.
|
|
} else if (nsCSSProps::FindKeyword(keyword,
|
|
nsCSSProps::kBackgroundClipKTable, dummy)) {
|
|
// For now, we use the background-clip table, because we don't
|
|
// support 'content' on background-clip. But that's dangerous
|
|
// if we eventually support no-clip.
|
|
NS_ASSERTION(
|
|
nsCSSProps::kBackgroundClipKTable[0] == eCSSKeyword_border &&
|
|
nsCSSProps::kBackgroundClipKTable[2] == eCSSKeyword_padding &&
|
|
nsCSSProps::kBackgroundClipKTable[4] == eCSSKeyword_UNKNOWN,
|
|
"need to rewrite this code");
|
|
if (haveOrigin)
|
|
return PR_FALSE;
|
|
haveOrigin = PR_TRUE;
|
|
if (!ParseSingleValueProperty(aItem.mOrigin,
|
|
eCSSProperty__moz_background_origin)) {
|
|
NS_NOTREACHED("should be able to parse");
|
|
return PR_FALSE;
|
|
}
|
|
PR_STATIC_ASSERT(NS_STYLE_BG_CLIP_BORDER ==
|
|
NS_STYLE_BG_ORIGIN_BORDER);
|
|
PR_STATIC_ASSERT(NS_STYLE_BG_CLIP_PADDING ==
|
|
NS_STYLE_BG_ORIGIN_PADDING);
|
|
// PR_STATIC_ASSERT(NS_STYLE_BG_CLIP_CONTENT == /* does not exist */
|
|
// NS_STYLE_BG_ORIGIN_CONTENT);
|
|
// When we support 'no-clip', this needs to be conditional on haveClip:
|
|
aItem.mClip = aItem.mOrigin;
|
|
// We'd support 'no-clip' as an additional |else| here.
|
|
#endif
|
|
} else {
|
|
if (haveColor)
|
|
return PR_FALSE;
|
|
haveColor = PR_TRUE;
|
|
if (!ParseBackgroundColor(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
aItem.mLastItem = PR_TRUE;
|
|
}
|
|
} else if (eCSSToken_Function == tt &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("url")) {
|
|
if (haveImage)
|
|
return PR_FALSE;
|
|
haveImage = PR_TRUE;
|
|
if (!ParseSingleValueProperty(aItem.mImage,
|
|
eCSSProperty_background_image)) {
|
|
return PR_FALSE;
|
|
}
|
|
} else if (mToken.IsDimension() || tt == eCSSToken_Percentage) {
|
|
if (havePosition)
|
|
return PR_FALSE;
|
|
havePosition = PR_TRUE;
|
|
if (!ParseBoxPositionValues(aItem.mPosition)) {
|
|
return PR_FALSE;
|
|
}
|
|
} else {
|
|
if (haveColor)
|
|
return PR_FALSE;
|
|
haveColor = PR_TRUE;
|
|
// Note: ParseBackgroundColor parses 'inherit' and 'initial', but
|
|
// we've already checked for them, so it's ok.
|
|
if (!ParseBackgroundColor(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
aItem.mLastItem = PR_TRUE;
|
|
}
|
|
haveSomething = PR_TRUE;
|
|
}
|
|
|
|
return haveSomething;
|
|
}
|
|
|
|
// This function is very similar to ParseBackgroundPosition.
|
|
PRBool
|
|
CSSParserImpl::ParseBackgroundList(nsCSSProperty aPropID)
|
|
{
|
|
// aPropID is a single value prop-id
|
|
nsCSSValue value;
|
|
nsCSSValueList *head = nsnull, **tail = &head;
|
|
for (;;) {
|
|
if (!ParseSingleValueProperty(value, aPropID)) {
|
|
break;
|
|
}
|
|
PRBool inheritOrInitial = value.GetUnit() == eCSSUnit_Inherit ||
|
|
value.GetUnit() == eCSSUnit_Initial;
|
|
if (inheritOrInitial && head) {
|
|
// inherit and initial are only allowed on their own
|
|
break;
|
|
}
|
|
nsCSSValueList *item = new nsCSSValueList;
|
|
if (!item) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
item->mValue = value;
|
|
*tail = item;
|
|
tail = &item->mNext;
|
|
if (!inheritOrInitial && ExpectSymbol(',', PR_TRUE)) {
|
|
continue;
|
|
}
|
|
if (!ExpectEndProperty()) {
|
|
break;
|
|
}
|
|
nsCSSValueList **source =
|
|
static_cast<nsCSSValueList**>(mTempData.PropertyAt(aPropID));
|
|
*source = head;
|
|
mTempData.SetPropertyBit(aPropID);
|
|
return PR_TRUE;
|
|
}
|
|
delete head;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBackgroundColor(PRBool aInShorthand)
|
|
{
|
|
nsCSSValuePair &backColor = mTempData.mColor.mBackColor;
|
|
mTempData.SetPropertyBit(eCSSProperty_background_color);
|
|
if (!ParseVariant(backColor.mXValue,
|
|
aInShorthand ? VARIANT_COLOR : VARIANT_HC, nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
backColor.mYValue = backColor.mXValue;
|
|
switch (backColor.mXValue.GetUnit()) {
|
|
case eCSSUnit_Inherit:
|
|
case eCSSUnit_Initial:
|
|
NS_ASSERTION(!aInShorthand,
|
|
"should not get inherit or initial in shorthand");
|
|
return ExpectEndProperty(); // we're done
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// Ignore success, since the value is optional.
|
|
ParseVariant(backColor.mYValue, VARIANT_COLOR, nsnull);
|
|
|
|
return aInShorthand || ExpectEndProperty();
|
|
}
|
|
|
|
// This function is very similar to ParseBackgroundList.
|
|
PRBool
|
|
CSSParserImpl::ParseBackgroundPosition()
|
|
{
|
|
// aPropID is a single value prop-id
|
|
nsCSSValuePair valuePair;
|
|
nsCSSValuePairList *head = nsnull, **tail = &head;
|
|
for (;;) {
|
|
if (!ParseBoxPositionValues(valuePair)) {
|
|
break;
|
|
}
|
|
PRBool inheritOrInitial = valuePair.mXValue.GetUnit() == eCSSUnit_Inherit ||
|
|
valuePair.mXValue.GetUnit() == eCSSUnit_Initial;
|
|
if (inheritOrInitial && head) {
|
|
// inherit and initial are only allowed on their own
|
|
break;
|
|
}
|
|
nsCSSValuePairList *item = new nsCSSValuePairList;
|
|
if (!item) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
item->mXValue = valuePair.mXValue;
|
|
item->mYValue = valuePair.mYValue;
|
|
*tail = item;
|
|
tail = &item->mNext;
|
|
if (!inheritOrInitial && ExpectSymbol(',', PR_TRUE)) {
|
|
continue;
|
|
}
|
|
if (!ExpectEndProperty()) {
|
|
break;
|
|
}
|
|
mTempData.mColor.mBackPosition = head;
|
|
mTempData.SetPropertyBit(eCSSProperty_background_position);
|
|
return PR_TRUE;
|
|
}
|
|
delete head;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/**
|
|
* Parses two values that correspond to positions in a box. These can be
|
|
* values corresponding to percentages of the box, raw offsets, or keywords
|
|
* like "top," "left center," etc.
|
|
*
|
|
* @param aOut The nsCSSValuePair where to place the result.
|
|
* @return Whether or not the operation succeeded.
|
|
*/
|
|
PRBool CSSParserImpl::ParseBoxPositionValues(nsCSSValuePair &aOut)
|
|
{
|
|
// First try a percentage or a length value
|
|
nsCSSValue &xValue = aOut.mXValue,
|
|
&yValue = aOut.mYValue;
|
|
if (ParseVariant(xValue, VARIANT_HLP, nsnull)) {
|
|
if (eCSSUnit_Inherit == xValue.GetUnit() ||
|
|
eCSSUnit_Initial == xValue.GetUnit()) { // both are inherited or both are set to initial
|
|
yValue = xValue;
|
|
return PR_TRUE;
|
|
}
|
|
// We have one percentage/length. Get the optional second
|
|
// percentage/length/keyword.
|
|
if (ParseVariant(yValue, VARIANT_LP, nsnull)) {
|
|
// We have two numbers
|
|
return PR_TRUE;
|
|
}
|
|
|
|
if (ParseEnum(yValue, nsCSSProps::kBackgroundPositionKTable)) {
|
|
PRInt32 yVal = yValue.GetIntValue();
|
|
if (!(yVal & BG_CTB)) {
|
|
// The second keyword can only be 'center', 'top', or 'bottom'
|
|
return PR_FALSE;
|
|
}
|
|
yValue = BoxPositionMaskToCSSValue(yVal, PR_FALSE);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// If only one percentage or length value is given, it sets the
|
|
// horizontal position only, and the vertical position will be 50%.
|
|
yValue.SetPercentValue(0.5f);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Now try keywords. We do this manually to allow for the first
|
|
// appearance of "center" to apply to the either the x or y
|
|
// position (it's ambiguous so we have to disambiguate). Each
|
|
// allowed keyword value is assigned it's own bit. We don't allow
|
|
// any duplicate keywords other than center. We try to get two
|
|
// keywords but it's okay if there is only one.
|
|
PRInt32 mask = 0;
|
|
if (ParseEnum(xValue, nsCSSProps::kBackgroundPositionKTable)) {
|
|
PRInt32 bit = xValue.GetIntValue();
|
|
mask |= bit;
|
|
if (ParseEnum(xValue, nsCSSProps::kBackgroundPositionKTable)) {
|
|
bit = xValue.GetIntValue();
|
|
if (mask & (bit & ~BG_CENTER)) {
|
|
// Only the 'center' keyword can be duplicated.
|
|
return PR_FALSE;
|
|
}
|
|
mask |= bit;
|
|
}
|
|
else {
|
|
// Only one keyword. See if we have a length or percentage.
|
|
if (ParseVariant(yValue, VARIANT_LP, nsnull)) {
|
|
if (!(mask & BG_CLR)) {
|
|
// The first keyword can only be 'center', 'left', or 'right'
|
|
return PR_FALSE;
|
|
}
|
|
|
|
xValue = BoxPositionMaskToCSSValue(mask, PR_TRUE);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for bad input. Bad input consists of no matching keywords,
|
|
// or pairs of x keywords or pairs of y keywords.
|
|
if ((mask == 0) || (mask == (BG_TOP | BG_BOTTOM)) ||
|
|
(mask == (BG_LEFT | BG_RIGHT))) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Create style values
|
|
xValue = BoxPositionMaskToCSSValue(mask, PR_TRUE);
|
|
yValue = BoxPositionMaskToCSSValue(mask, PR_FALSE);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderColor()
|
|
{
|
|
static const nsCSSProperty kBorderColorSources[] = {
|
|
eCSSProperty_border_left_color_ltr_source,
|
|
eCSSProperty_border_left_color_rtl_source,
|
|
eCSSProperty_border_right_color_ltr_source,
|
|
eCSSProperty_border_right_color_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
// do this now, in case 4 values weren't specified
|
|
InitBoxPropsAsPhysical(kBorderColorSources);
|
|
return ParseBoxProperties(mTempData.mMargin.mBorderColor,
|
|
kBorderColorIDs);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderImage()
|
|
{
|
|
if (ParseVariant(mTempData.mMargin.mBorderImage,
|
|
VARIANT_INHERIT | VARIANT_NONE, nsnull)) {
|
|
mTempData.SetPropertyBit(eCSSProperty_border_image);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// <uri> [<number> | <percentage>]{1,4} [ / <border-width>{1,4} ]? [stretch | repeat | round]{0,2}
|
|
nsRefPtr<nsCSSValue::Array> arr = nsCSSValue::Array::Create(11);
|
|
if (!arr) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsCSSValue& url = arr->Item(0);
|
|
nsCSSValue& splitTop = arr->Item(1);
|
|
nsCSSValue& splitRight = arr->Item(2);
|
|
nsCSSValue& splitBottom = arr->Item(3);
|
|
nsCSSValue& splitLeft = arr->Item(4);
|
|
nsCSSValue& borderWidthTop = arr->Item(5);
|
|
nsCSSValue& borderWidthRight = arr->Item(6);
|
|
nsCSSValue& borderWidthBottom = arr->Item(7);
|
|
nsCSSValue& borderWidthLeft = arr->Item(8);
|
|
nsCSSValue& horizontalKeyword = arr->Item(9);
|
|
nsCSSValue& verticalKeyword = arr->Item(10);
|
|
|
|
// <uri>
|
|
if (!ParseVariant(url, VARIANT_URL, nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// [<number> | <percentage>]{1,4}
|
|
if (!ParseNonNegativeVariant(splitTop,
|
|
VARIANT_NUMBER | VARIANT_PERCENT, nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (!ParseNonNegativeVariant(splitRight,
|
|
VARIANT_NUMBER | VARIANT_PERCENT, nsnull)) {
|
|
splitRight = splitTop;
|
|
}
|
|
if (!ParseNonNegativeVariant(splitBottom,
|
|
VARIANT_NUMBER | VARIANT_PERCENT, nsnull)) {
|
|
splitBottom = splitTop;
|
|
}
|
|
if (!ParseNonNegativeVariant(splitLeft,
|
|
VARIANT_NUMBER | VARIANT_PERCENT, nsnull)) {
|
|
splitLeft = splitRight;
|
|
}
|
|
|
|
// [ / <border-width>{1,4} ]?
|
|
if (ExpectSymbol('/', PR_TRUE)) {
|
|
// if have '/', at least one value is required
|
|
if (!ParseNonNegativeVariant(borderWidthTop, VARIANT_LENGTH, nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (!ParseNonNegativeVariant(borderWidthRight, VARIANT_LENGTH, nsnull)) {
|
|
borderWidthRight = borderWidthTop;
|
|
}
|
|
if (!ParseNonNegativeVariant(borderWidthBottom, VARIANT_LENGTH, nsnull)) {
|
|
borderWidthBottom = borderWidthTop;
|
|
}
|
|
if (!ParseNonNegativeVariant(borderWidthLeft, VARIANT_LENGTH, nsnull)) {
|
|
borderWidthLeft = borderWidthRight;
|
|
}
|
|
}
|
|
|
|
// [stretch | repeat | round]{0,2}
|
|
// missing keywords are handled in nsRuleNode::ComputeBorderData()
|
|
if (ParseEnum(horizontalKeyword, nsCSSProps::kBorderImageKTable)) {
|
|
ParseEnum(verticalKeyword, nsCSSProps::kBorderImageKTable);
|
|
}
|
|
|
|
if (!ExpectEndProperty()) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
mTempData.mMargin.mBorderImage.SetArrayValue(arr, eCSSUnit_Array);
|
|
mTempData.SetPropertyBit(eCSSProperty_border_image);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderSpacing()
|
|
{
|
|
nsCSSValue xValue;
|
|
if (ParseNonNegativeVariant(xValue, VARIANT_HL, nsnull)) {
|
|
if (xValue.IsLengthUnit()) {
|
|
// We have one length. Get the optional second length.
|
|
nsCSSValue yValue;
|
|
if (ParseNonNegativeVariant(yValue, VARIANT_LENGTH, nsnull)) {
|
|
// We have two numbers
|
|
if (ExpectEndProperty()) {
|
|
mTempData.mTable.mBorderSpacing.mXValue = xValue;
|
|
mTempData.mTable.mBorderSpacing.mYValue = yValue;
|
|
mTempData.SetPropertyBit(eCSSProperty_border_spacing);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
|
|
// We have one length which is the horizontal spacing. Create a value for
|
|
// the vertical spacing which is equal
|
|
if (ExpectEndProperty()) {
|
|
mTempData.mTable.mBorderSpacing.SetBothValuesTo(xValue);
|
|
mTempData.SetPropertyBit(eCSSProperty_border_spacing);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderSide(const nsCSSProperty aPropIDs[],
|
|
PRBool aSetAllSides)
|
|
{
|
|
const PRInt32 numProps = 3;
|
|
nsCSSValue values[numProps];
|
|
|
|
PRInt32 found = ParseChoice(values, aPropIDs, numProps);
|
|
if ((found < 1) || (PR_FALSE == ExpectEndProperty())) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if ((found & 1) == 0) { // Provide default border-width
|
|
values[0].SetIntValue(NS_STYLE_BORDER_WIDTH_MEDIUM, eCSSUnit_Enumerated);
|
|
}
|
|
if ((found & 2) == 0) { // Provide default border-style
|
|
values[1].SetNoneValue();
|
|
}
|
|
if ((found & 4) == 0) { // text color will be used
|
|
values[2].SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
|
|
}
|
|
|
|
if (aSetAllSides) {
|
|
static const nsCSSProperty kBorderSources[] = {
|
|
eCSSProperty_border_left_color_ltr_source,
|
|
eCSSProperty_border_left_color_rtl_source,
|
|
eCSSProperty_border_right_color_ltr_source,
|
|
eCSSProperty_border_right_color_rtl_source,
|
|
eCSSProperty_border_left_style_ltr_source,
|
|
eCSSProperty_border_left_style_rtl_source,
|
|
eCSSProperty_border_right_style_ltr_source,
|
|
eCSSProperty_border_right_style_rtl_source,
|
|
eCSSProperty_border_left_width_ltr_source,
|
|
eCSSProperty_border_left_width_rtl_source,
|
|
eCSSProperty_border_right_width_ltr_source,
|
|
eCSSProperty_border_right_width_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
InitBoxPropsAsPhysical(kBorderSources);
|
|
|
|
// Parsing "border" shorthand; set all four sides to the same thing
|
|
for (PRInt32 index = 0; index < 4; index++) {
|
|
NS_ASSERTION(numProps == 3, "This code needs updating");
|
|
AppendValue(kBorderWidthIDs[index], values[0]);
|
|
AppendValue(kBorderStyleIDs[index], values[1]);
|
|
AppendValue(kBorderColorIDs[index], values[2]);
|
|
}
|
|
}
|
|
else {
|
|
// Just set our one side
|
|
for (PRInt32 index = 0; index < numProps; index++) {
|
|
AppendValue(aPropIDs[index], values[index]);
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseDirectionalBorderSide(const nsCSSProperty aPropIDs[],
|
|
PRInt32 aSourceType)
|
|
{
|
|
const PRInt32 numProps = 3;
|
|
nsCSSValue values[numProps];
|
|
|
|
PRInt32 found = ParseChoice(values, aPropIDs, numProps);
|
|
if ((found < 1) || (PR_FALSE == ExpectEndProperty())) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if ((found & 1) == 0) { // Provide default border-width
|
|
values[0].SetIntValue(NS_STYLE_BORDER_WIDTH_MEDIUM, eCSSUnit_Enumerated);
|
|
}
|
|
if ((found & 2) == 0) { // Provide default border-style
|
|
values[1].SetNoneValue();
|
|
}
|
|
if ((found & 4) == 0) { // text color will be used
|
|
values[2].SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
|
|
}
|
|
for (PRInt32 index = 0; index < numProps; index++) {
|
|
const nsCSSProperty* subprops =
|
|
nsCSSProps::SubpropertyEntryFor(aPropIDs[index + numProps]);
|
|
NS_ASSERTION(subprops[3] == eCSSProperty_UNKNOWN,
|
|
"not box property with physical vs. logical cascading");
|
|
AppendValue(subprops[0], values[index]);
|
|
nsCSSValue typeVal(aSourceType, eCSSUnit_Enumerated);
|
|
AppendValue(subprops[1], typeVal);
|
|
AppendValue(subprops[2], typeVal);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderStyle()
|
|
{
|
|
static const nsCSSProperty kBorderStyleSources[] = {
|
|
eCSSProperty_border_left_style_ltr_source,
|
|
eCSSProperty_border_left_style_rtl_source,
|
|
eCSSProperty_border_right_style_ltr_source,
|
|
eCSSProperty_border_right_style_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
// do this now, in case 4 values weren't specified
|
|
InitBoxPropsAsPhysical(kBorderStyleSources);
|
|
return ParseBoxProperties(mTempData.mMargin.mBorderStyle,
|
|
kBorderStyleIDs);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderWidth()
|
|
{
|
|
static const nsCSSProperty kBorderWidthSources[] = {
|
|
eCSSProperty_border_left_width_ltr_source,
|
|
eCSSProperty_border_left_width_rtl_source,
|
|
eCSSProperty_border_right_width_ltr_source,
|
|
eCSSProperty_border_right_width_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
// do this now, in case 4 values weren't specified
|
|
InitBoxPropsAsPhysical(kBorderWidthSources);
|
|
return ParseBoxProperties(mTempData.mMargin.mBorderWidth,
|
|
kBorderWidthIDs);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBorderColors(nsCSSValueList** aResult,
|
|
nsCSSProperty aProperty)
|
|
{
|
|
nsCSSValueList *list = nsnull;
|
|
for (nsCSSValueList **curp = &list, *cur; ; curp = &cur->mNext) {
|
|
cur = *curp = new nsCSSValueList();
|
|
if (!cur) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
if (!ParseVariant(cur->mValue,
|
|
(cur == list)
|
|
? (VARIANT_HCK | VARIANT_NONE)
|
|
: (VARIANT_COLOR | VARIANT_KEYWORD),
|
|
nsCSSProps::kBorderColorKTable)) {
|
|
break;
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
// Only success case here, since having the failure case at the
|
|
// end allows more sharing of code.
|
|
mTempData.SetPropertyBit(aProperty);
|
|
*aResult = list;
|
|
return PR_TRUE;
|
|
}
|
|
if (cur->mValue.GetUnit() == eCSSUnit_Inherit ||
|
|
cur->mValue.GetUnit() == eCSSUnit_Initial ||
|
|
cur->mValue.GetUnit() == eCSSUnit_None) {
|
|
// 'inherit', 'initial', and 'none' are only allowed on their own
|
|
break;
|
|
}
|
|
}
|
|
// Have failure case at the end so we can |break| to get to it.
|
|
delete list;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseRect(nsCSSRect& aRect, nsCSSProperty aPropID)
|
|
{
|
|
nsCSSRect rect;
|
|
PRBool result;
|
|
if ((result = DoParseRect(rect)) &&
|
|
rect != aRect) {
|
|
aRect = rect;
|
|
mTempData.SetPropertyBit(aPropID);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::DoParseRect(nsCSSRect& aRect)
|
|
{
|
|
if (! GetToken(PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(mToken.mIdent);
|
|
switch (keyword) {
|
|
case eCSSKeyword_auto:
|
|
if (ExpectEndProperty()) {
|
|
aRect.SetAllSidesTo(nsCSSValue(eCSSUnit_RectIsAuto));
|
|
return PR_TRUE;
|
|
}
|
|
break;
|
|
case eCSSKeyword_inherit:
|
|
if (ExpectEndProperty()) {
|
|
aRect.SetAllSidesTo(nsCSSValue(eCSSUnit_Inherit));
|
|
return PR_TRUE;
|
|
}
|
|
break;
|
|
case eCSSKeyword__moz_initial:
|
|
if (ExpectEndProperty()) {
|
|
aRect.SetAllSidesTo(nsCSSValue(eCSSUnit_Initial));
|
|
return PR_TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
UngetToken();
|
|
break;
|
|
}
|
|
} else if ((eCSSToken_Function == mToken.mType) &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("rect")) {
|
|
if (!ExpectSymbol('(', PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
NS_FOR_CSS_SIDES(side) {
|
|
if (! ParseVariant(aRect.*(nsCSSRect::sides[side]),
|
|
VARIANT_AL, nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (3 != side) {
|
|
// skip optional commas between elements
|
|
ExpectSymbol(',', PR_TRUE);
|
|
}
|
|
}
|
|
if (!ExpectSymbol(')', PR_TRUE)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
return PR_TRUE;
|
|
}
|
|
} else {
|
|
UngetToken();
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
#define VARIANT_CONTENT (VARIANT_STRING | VARIANT_URL | VARIANT_COUNTER | VARIANT_ATTR | \
|
|
VARIANT_KEYWORD)
|
|
PRBool
|
|
CSSParserImpl::ParseContent()
|
|
{
|
|
// XXX Rewrite to make it look more like ParseCursor or ParseCounterData?
|
|
nsCSSValue value;
|
|
if (ParseVariant(value,
|
|
VARIANT_CONTENT | VARIANT_INHERIT | VARIANT_NORMAL |
|
|
VARIANT_NONE,
|
|
nsCSSProps::kContentKTable)) {
|
|
nsCSSValueList* listHead = new nsCSSValueList();
|
|
nsCSSValueList* list = listHead;
|
|
if (nsnull == list) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
list->mValue = value;
|
|
|
|
while (nsnull != list) {
|
|
if (ExpectEndProperty()) {
|
|
mTempData.SetPropertyBit(eCSSProperty_content);
|
|
mTempData.mContent.mContent = listHead;
|
|
return PR_TRUE;
|
|
}
|
|
if (eCSSUnit_Inherit == value.GetUnit() ||
|
|
eCSSUnit_Initial == value.GetUnit() ||
|
|
eCSSUnit_Normal == value.GetUnit() ||
|
|
eCSSUnit_None == value.GetUnit() ||
|
|
(eCSSUnit_Enumerated == value.GetUnit() &&
|
|
NS_STYLE_CONTENT_ALT_CONTENT == value.GetIntValue())) {
|
|
// This only matters the first time through the loop.
|
|
delete listHead;
|
|
return PR_FALSE;
|
|
}
|
|
if (ParseVariant(value, VARIANT_CONTENT, nsCSSProps::kContentKTable) &&
|
|
// Make sure we didn't end up with NS_STYLE_CONTENT_ALT_CONTENT here
|
|
(value.GetUnit() != eCSSUnit_Enumerated ||
|
|
value.GetIntValue() != NS_STYLE_CONTENT_ALT_CONTENT)) {
|
|
list->mNext = new nsCSSValueList();
|
|
list = list->mNext;
|
|
if (nsnull != list) {
|
|
list->mValue = value;
|
|
}
|
|
else {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
delete listHead;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
struct SingleCounterPropValue {
|
|
char str[13];
|
|
nsCSSUnit unit;
|
|
};
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseCounterData(nsCSSValuePairList** aResult,
|
|
nsCSSProperty aPropID)
|
|
{
|
|
nsSubstring* ident = NextIdent();
|
|
if (nsnull == ident) {
|
|
return PR_FALSE;
|
|
}
|
|
static const SingleCounterPropValue singleValues[] = {
|
|
{ "none", eCSSUnit_None },
|
|
{ "inherit", eCSSUnit_Inherit },
|
|
{ "-moz-initial", eCSSUnit_Initial }
|
|
};
|
|
for (const SingleCounterPropValue *sv = singleValues,
|
|
*sv_end = singleValues + NS_ARRAY_LENGTH(singleValues);
|
|
sv != sv_end; ++sv) {
|
|
if (ident->LowerCaseEqualsASCII(sv->str)) {
|
|
if (CheckEndProperty()) {
|
|
nsCSSValuePairList* dataHead = new nsCSSValuePairList();
|
|
if (!dataHead) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
dataHead->mXValue = nsCSSValue(sv->unit);
|
|
*aResult = dataHead;
|
|
mTempData.SetPropertyBit(aPropID);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
UngetToken(); // undo NextIdent
|
|
|
|
nsCSSValuePairList* dataHead = nsnull;
|
|
nsCSSValuePairList **next = &dataHead;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE) || mToken.mType != eCSSToken_Ident) {
|
|
break;
|
|
}
|
|
nsCSSValuePairList *data = *next = new nsCSSValuePairList();
|
|
if (!data) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
next = &data->mNext;
|
|
data->mXValue.SetStringValue(mToken.mIdent, eCSSUnit_Ident);
|
|
if (GetToken(PR_TRUE)) {
|
|
if (eCSSToken_Number == mToken.mType && mToken.mIntegerValid) {
|
|
data->mYValue.SetIntValue(mToken.mInteger, eCSSUnit_Integer);
|
|
} else {
|
|
UngetToken();
|
|
}
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
mTempData.SetPropertyBit(aPropID);
|
|
*aResult = dataHead;
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
delete dataHead;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseCue()
|
|
{
|
|
nsCSSValue before;
|
|
if (ParseSingleValueProperty(before, eCSSProperty_cue_before)) {
|
|
if (eCSSUnit_Inherit != before.GetUnit() &&
|
|
eCSSUnit_Initial != before.GetUnit()) {
|
|
nsCSSValue after;
|
|
if (ParseSingleValueProperty(after, eCSSProperty_cue_after)) {
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty_cue_before, before);
|
|
AppendValue(eCSSProperty_cue_after, after);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty_cue_before, before);
|
|
AppendValue(eCSSProperty_cue_after, before);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseCursor()
|
|
{
|
|
nsCSSValueList *list = nsnull;
|
|
for (nsCSSValueList **curp = &list, *cur; ; curp = &cur->mNext) {
|
|
cur = *curp = new nsCSSValueList();
|
|
if (!cur) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
if (!ParseVariant(cur->mValue,
|
|
(cur == list) ? VARIANT_AHUK : VARIANT_AUK,
|
|
nsCSSProps::kCursorKTable)) {
|
|
break;
|
|
}
|
|
if (cur->mValue.GetUnit() != eCSSUnit_URL) {
|
|
if (!ExpectEndProperty()) {
|
|
break;
|
|
}
|
|
// Only success case here, since having the failure case at the
|
|
// end allows more sharing of code.
|
|
mTempData.SetPropertyBit(eCSSProperty_cursor);
|
|
mTempData.mUserInterface.mCursor = list;
|
|
return PR_TRUE;
|
|
}
|
|
// We have a URL, so make a value array with three values.
|
|
nsRefPtr<nsCSSValue::Array> val = nsCSSValue::Array::Create(3);
|
|
if (!val) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
val->Item(0) = cur->mValue;
|
|
cur->mValue.SetArrayValue(val, eCSSUnit_Array);
|
|
|
|
// Parse optional x and y position of cursor hotspot (css3-ui).
|
|
if (ParseVariant(val->Item(1), VARIANT_NUMBER, nsnull)) {
|
|
// If we have one number, we must have two.
|
|
if (!ParseVariant(val->Item(2), VARIANT_NUMBER, nsnull)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE)) {
|
|
break;
|
|
}
|
|
}
|
|
// Have failure case at the end so we can |break| to get to it.
|
|
delete list;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFont()
|
|
{
|
|
static const nsCSSProperty fontIDs[] = {
|
|
eCSSProperty_font_style,
|
|
eCSSProperty_font_variant,
|
|
eCSSProperty_font_weight
|
|
};
|
|
|
|
nsCSSValue family;
|
|
if (ParseVariant(family, VARIANT_HK, nsCSSProps::kFontKTable)) {
|
|
if (ExpectEndProperty()) {
|
|
if (eCSSUnit_Inherit == family.GetUnit() ||
|
|
eCSSUnit_Initial == family.GetUnit()) {
|
|
AppendValue(eCSSProperty__x_system_font, nsCSSValue(eCSSUnit_None));
|
|
AppendValue(eCSSProperty_font_family, family);
|
|
AppendValue(eCSSProperty_font_style, family);
|
|
AppendValue(eCSSProperty_font_variant, family);
|
|
AppendValue(eCSSProperty_font_weight, family);
|
|
AppendValue(eCSSProperty_font_size, family);
|
|
AppendValue(eCSSProperty_line_height, family);
|
|
AppendValue(eCSSProperty_font_stretch, family);
|
|
AppendValue(eCSSProperty_font_size_adjust, family);
|
|
}
|
|
else {
|
|
AppendValue(eCSSProperty__x_system_font, family);
|
|
nsCSSValue systemFont(eCSSUnit_System_Font);
|
|
AppendValue(eCSSProperty_font_family, systemFont);
|
|
AppendValue(eCSSProperty_font_style, systemFont);
|
|
AppendValue(eCSSProperty_font_variant, systemFont);
|
|
AppendValue(eCSSProperty_font_weight, systemFont);
|
|
AppendValue(eCSSProperty_font_size, systemFont);
|
|
AppendValue(eCSSProperty_line_height, systemFont);
|
|
AppendValue(eCSSProperty_font_stretch, systemFont);
|
|
AppendValue(eCSSProperty_font_size_adjust, systemFont);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Get optional font-style, font-variant and font-weight (in any order)
|
|
const PRInt32 numProps = 3;
|
|
nsCSSValue values[numProps];
|
|
PRInt32 found = ParseChoice(values, fontIDs, numProps);
|
|
if ((found < 0) || (eCSSUnit_Inherit == values[0].GetUnit()) ||
|
|
(eCSSUnit_Initial == values[0].GetUnit())) { // illegal data
|
|
return PR_FALSE;
|
|
}
|
|
if ((found & 1) == 0) {
|
|
// Provide default font-style
|
|
values[0].SetNormalValue();
|
|
}
|
|
if ((found & 2) == 0) {
|
|
// Provide default font-variant
|
|
values[1].SetNormalValue();
|
|
}
|
|
if ((found & 4) == 0) {
|
|
// Provide default font-weight
|
|
values[2].SetNormalValue();
|
|
}
|
|
|
|
// Get mandatory font-size
|
|
nsCSSValue size;
|
|
if (! ParseVariant(size, VARIANT_KEYWORD | VARIANT_LP, nsCSSProps::kFontSizeKTable)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Get optional "/" line-height
|
|
nsCSSValue lineHeight;
|
|
if (ExpectSymbol('/', PR_TRUE)) {
|
|
if (! ParseNonNegativeVariant(lineHeight,
|
|
VARIANT_NUMBER | VARIANT_LP | VARIANT_NORMAL,
|
|
nsnull)) {
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
else {
|
|
lineHeight.SetNormalValue();
|
|
}
|
|
|
|
// Get final mandatory font-family
|
|
nsAutoParseCompoundProperty compound(this);
|
|
if (ParseFamily(family)) {
|
|
if ((eCSSUnit_Inherit != family.GetUnit()) && (eCSSUnit_Initial != family.GetUnit()) &&
|
|
ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty__x_system_font, nsCSSValue(eCSSUnit_None));
|
|
AppendValue(eCSSProperty_font_family, family);
|
|
AppendValue(eCSSProperty_font_style, values[0]);
|
|
AppendValue(eCSSProperty_font_variant, values[1]);
|
|
AppendValue(eCSSProperty_font_weight, values[2]);
|
|
AppendValue(eCSSProperty_font_size, size);
|
|
AppendValue(eCSSProperty_line_height, lineHeight);
|
|
AppendValue(eCSSProperty_font_stretch, nsCSSValue(eCSSUnit_Normal));
|
|
AppendValue(eCSSProperty_font_size_adjust, nsCSSValue(eCSSUnit_None));
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFontWeight(nsCSSValue& aValue)
|
|
{
|
|
if (ParseVariant(aValue, VARIANT_HMKI | VARIANT_SYSFONT, nsCSSProps::kFontWeightKTable)) {
|
|
if (eCSSUnit_Integer == aValue.GetUnit()) { // ensure unit value
|
|
PRInt32 intValue = aValue.GetIntValue();
|
|
if ((100 <= intValue) &&
|
|
(intValue <= 900) &&
|
|
(0 == (intValue % 100))) {
|
|
return PR_TRUE;
|
|
} else {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseOneFamily(nsAString& aFamily)
|
|
{
|
|
if (!GetToken(PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
nsCSSToken* tk = &mToken;
|
|
|
|
if (eCSSToken_Ident == tk->mType) {
|
|
aFamily.Append(tk->mIdent);
|
|
for (;;) {
|
|
if (!GetToken(PR_FALSE))
|
|
break;
|
|
|
|
if (eCSSToken_Ident == tk->mType) {
|
|
aFamily.Append(tk->mIdent);
|
|
} else if (eCSSToken_WhiteSpace == tk->mType) {
|
|
// Lookahead one token and drop whitespace if we are ending the
|
|
// font name.
|
|
if (!GetToken(PR_TRUE))
|
|
break;
|
|
|
|
UngetToken();
|
|
if (eCSSToken_Ident == tk->mType)
|
|
aFamily.Append(PRUnichar(' '));
|
|
else
|
|
break;
|
|
} else {
|
|
UngetToken();
|
|
break;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
|
|
} else if (eCSSToken_String == tk->mType) {
|
|
aFamily.Append(tk->mSymbol); // replace the quotes
|
|
aFamily.Append(tk->mIdent); // XXX What if it had escaped quotes?
|
|
aFamily.Append(tk->mSymbol);
|
|
return PR_TRUE;
|
|
|
|
} else {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////
|
|
// -moz-transform Parsing Implementation
|
|
|
|
/* Reads a function list of arguments. Do not call this function
|
|
* directly; it's mean to be caled from ParseFunction.
|
|
*/
|
|
PRBool
|
|
CSSParserImpl::ParseFunctionInternals(const PRInt32 aVariantMask[],
|
|
PRUint16 aMinElems,
|
|
PRUint16 aMaxElems,
|
|
nsTArray<nsCSSValue> &aOutput)
|
|
{
|
|
for (PRUint16 index = 0; index < aMaxElems; ++index) {
|
|
nsCSSValue newValue;
|
|
if (!ParseVariant(newValue, aVariantMask[index], nsnull))
|
|
return PR_FALSE;
|
|
|
|
if (!aOutput.AppendElement(newValue)) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// See whether to continue or whether to look for end of function.
|
|
if (!ExpectSymbol(',', PR_TRUE)) {
|
|
// We need to read the closing parenthesis, and also must take care
|
|
// that we haven't read too few symbols.
|
|
return ExpectSymbol(')', PR_TRUE) && (index + 1) >= aMinElems;
|
|
}
|
|
}
|
|
|
|
// If we're here, we finished looping without hitting the end, so we read too
|
|
// many elements.
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Parses a function [ input of the form (a [, b]*) ] and stores it
|
|
* as an nsCSSValue that holds a function of the form
|
|
* function-name arg1 arg2 ... argN
|
|
*
|
|
* On error, the return value is PR_FALSE.
|
|
*
|
|
* @param aFunction The name of the function that we're reading.
|
|
* @param aAllowedTypes An array of values corresponding to the legal
|
|
* types for each element in the function. The zeroth element in the
|
|
* array corresponds to the first function parameter, etc. The length
|
|
* of this array _must_ be greater than or equal to aMaxElems or the
|
|
* behavior is undefined.
|
|
* @param aMinElems Minimum number of elements to read. Reading fewer than
|
|
* this many elements will result in the function failing.
|
|
* @param aMaxElems Maximum number of elements to read. Reading more than
|
|
* this many elements will result in the function failing.
|
|
* @param aValue (out) The value that was parsed.
|
|
*/
|
|
PRBool
|
|
CSSParserImpl::ParseFunction(const nsString &aFunction,
|
|
const PRInt32 aAllowedTypes[],
|
|
PRUint16 aMinElems, PRUint16 aMaxElems,
|
|
nsCSSValue &aValue)
|
|
{
|
|
typedef nsTArray<nsCSSValue>::size_type arrlen_t;
|
|
|
|
/* 2^16 - 2, so that if we have 2^16 - 2 transforms, we have 2^16 - 1
|
|
* elements stored in the the nsCSSValue::Array.
|
|
*/
|
|
static const arrlen_t MAX_ALLOWED_ELEMS = 0xFFFE;
|
|
|
|
/* Make a copy of the function name, since the reference is _probably_ to
|
|
* mToken.mIdent, which is going to get overwritten during the course of this
|
|
* function.
|
|
*/
|
|
nsString functionName(aFunction);
|
|
|
|
/* First things first... read the parenthesis. If it fails, abort. */
|
|
if (!ExpectSymbol('(', PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
/* Read in a list of values as an nsTArray, failing if we can't or if
|
|
* it's out of bounds.
|
|
*/
|
|
nsTArray<nsCSSValue> foundValues;
|
|
if (!ParseFunctionInternals(aAllowedTypes, aMinElems, aMaxElems,
|
|
foundValues))
|
|
return PR_FALSE;
|
|
|
|
/* Now, convert this nsTArray into an nsCSSValue::Array object.
|
|
* We'll need N + 1 spots, one for the function name and the rest for the
|
|
* arguments. In case the user has given us more than 2^16 - 2 arguments,
|
|
* we'll truncate them at 2^16 - 2 arguments.
|
|
*/
|
|
PRUint16 numElements = (foundValues.Length() <= MAX_ALLOWED_ELEMS ?
|
|
foundValues.Length() + 1 : MAX_ALLOWED_ELEMS);
|
|
nsRefPtr<nsCSSValue::Array> convertedArray =
|
|
nsCSSValue::Array::Create(numElements);
|
|
if (!convertedArray) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Copy things over. */
|
|
convertedArray->Item(0).SetStringValue(functionName, eCSSUnit_Ident);
|
|
for (PRUint16 index = 0; index + 1 < numElements; ++index)
|
|
convertedArray->Item(index + 1) = foundValues[static_cast<arrlen_t>(index)];
|
|
|
|
/* Fill in the outparam value with the array. */
|
|
aValue.SetArrayValue(convertedArray, eCSSUnit_Function);
|
|
|
|
/* Return it! */
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/**
|
|
* Given a token, determines the minimum and maximum number of function
|
|
* parameters to read, along with the mask that should be used to read
|
|
* those function parameters. If the token isn't a transform function,
|
|
* returns an error.
|
|
*
|
|
* @param aToken The token identifying the function.
|
|
* @param aMinElems [out] The minimum number of elements to read.
|
|
* @param aMaxElems [out] The maximum number of elements to read
|
|
* @param aVariantMask [out] The variant mask to use during parsing
|
|
* @return Whether the information was loaded successfully.
|
|
*/
|
|
static PRBool GetFunctionParseInformation(nsCSSKeyword aToken,
|
|
PRUint16 &aMinElems,
|
|
PRUint16 &aMaxElems,
|
|
const PRInt32 *& aVariantMask)
|
|
{
|
|
/* These types represent the common variant masks that will be used to
|
|
* parse out the individual functions. The order in the enumeration
|
|
* must match the order in which the masks are declared.
|
|
*/
|
|
enum { eLengthPercent,
|
|
eTwoLengthPercents,
|
|
eAngle,
|
|
eTwoAngles,
|
|
eNumber,
|
|
eTwoNumbers,
|
|
eMatrix,
|
|
eNumVariantMasks };
|
|
static const PRInt32 kMaxElemsPerFunction = 6;
|
|
static const PRInt32 kVariantMasks[eNumVariantMasks][kMaxElemsPerFunction] = {
|
|
{VARIANT_LENGTH | VARIANT_PERCENT},
|
|
{VARIANT_LENGTH | VARIANT_PERCENT, VARIANT_LENGTH | VARIANT_PERCENT},
|
|
{VARIANT_ANGLE},
|
|
{VARIANT_ANGLE, VARIANT_ANGLE},
|
|
{VARIANT_NUMBER},
|
|
{VARIANT_NUMBER, VARIANT_NUMBER},
|
|
{VARIANT_NUMBER, VARIANT_NUMBER, VARIANT_NUMBER, VARIANT_NUMBER,
|
|
VARIANT_LENGTH | VARIANT_PERCENT, VARIANT_LENGTH | VARIANT_PERCENT}};
|
|
|
|
#ifdef DEBUG
|
|
static const PRUint8 kVariantMaskLengths[eNumVariantMasks] =
|
|
{1, 2, 1, 2, 1, 2, 6};
|
|
#endif
|
|
|
|
PRInt32 variantIndex = eNumVariantMasks;
|
|
|
|
switch (aToken) {
|
|
case eCSSKeyword_translatex:
|
|
/* Exactly one length or percent. */
|
|
variantIndex = eLengthPercent;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_translatey:
|
|
/* Exactly one length or percent. */
|
|
variantIndex = eLengthPercent;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_scalex:
|
|
/* Exactly one scale factor. */
|
|
variantIndex = eNumber;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_scaley:
|
|
/* Exactly one scale factor. */
|
|
variantIndex = eNumber;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_rotate:
|
|
/* Exactly one angle. */
|
|
variantIndex = eAngle;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_translate:
|
|
/* One or two lengths or percents. */
|
|
variantIndex = eTwoLengthPercents;
|
|
aMinElems = 1U;
|
|
aMaxElems = 2U;
|
|
break;
|
|
case eCSSKeyword_skew:
|
|
/* Exactly one or two angles. */
|
|
variantIndex = eTwoAngles;
|
|
aMinElems = 1U;
|
|
aMaxElems = 2U;
|
|
break;
|
|
case eCSSKeyword_scale:
|
|
/* One or two scale factors. */
|
|
variantIndex = eTwoNumbers;
|
|
aMinElems = 1U;
|
|
aMaxElems = 2U;
|
|
break;
|
|
case eCSSKeyword_skewx:
|
|
/* Exactly one angle. */
|
|
variantIndex = eAngle;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_skewy:
|
|
/* Exactly one angle. */
|
|
variantIndex = eAngle;
|
|
aMinElems = 1U;
|
|
aMaxElems = 1U;
|
|
break;
|
|
case eCSSKeyword_matrix:
|
|
/* Six values, which can be numbers, lengths, or percents. */
|
|
variantIndex = eMatrix;
|
|
aMinElems = 6U;
|
|
aMaxElems = 6U;
|
|
break;
|
|
default:
|
|
/* Oh dear, we didn't match. Report an error. */
|
|
return PR_FALSE;
|
|
}
|
|
|
|
NS_ASSERTION(aMinElems > 0, "Didn't update minimum elements!");
|
|
NS_ASSERTION(aMaxElems > 0, "Didn't update maximum elements!");
|
|
NS_ASSERTION(aMinElems <= aMaxElems, "aMinElems > aMaxElems!");
|
|
NS_ASSERTION(variantIndex >= 0, "Invalid variant mask!");
|
|
NS_ASSERTION(variantIndex < eNumVariantMasks, "Invalid variant mask!");
|
|
#ifdef DEBUG
|
|
NS_ASSERTION(aMaxElems <= kVariantMaskLengths[variantIndex],
|
|
"Invalid aMaxElems for this variant mask.");
|
|
#endif
|
|
|
|
// Convert the index into a mask.
|
|
aVariantMask = kVariantMasks[variantIndex];
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
/* Reads a single transform function from the tokenizer stream, reporting an
|
|
* error if something goes wrong.
|
|
*/
|
|
PRBool CSSParserImpl::ReadSingleTransform(nsCSSValueList **& aTail)
|
|
{
|
|
typedef nsTArray<nsCSSValue>::size_type arrlen_t;
|
|
|
|
if (!GetToken(PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
/* Check to make sure that we've read a function. */
|
|
if (mToken.mType != eCSSToken_Function) {
|
|
UngetToken();
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Load up the variant mask information for ParseFunction. If we can't,
|
|
* abort.
|
|
*/
|
|
const PRInt32* variantMask;
|
|
PRUint16 minElems, maxElems;
|
|
if (!GetFunctionParseInformation(nsCSSKeywords::LookupKeyword(mToken.mIdent),
|
|
minElems, maxElems, variantMask))
|
|
return PR_FALSE;
|
|
|
|
/* Create a cell to populate, fail if we're out of memory. */
|
|
nsAutoPtr<nsCSSValue> newCell(new nsCSSValue);
|
|
if (!newCell) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Try reading things in, failing if we can't */
|
|
if (!ParseFunction(mToken.mIdent, variantMask, minElems, maxElems, *newCell))
|
|
return PR_FALSE;
|
|
|
|
/* Wrap up our result in an nsCSSValueList cell. */
|
|
nsAutoPtr<nsCSSValueList> toAppend(new nsCSSValueList);
|
|
if (!toAppend)
|
|
return PR_FALSE;
|
|
|
|
toAppend->mValue = *newCell;
|
|
|
|
/* Chain the element to the end of the transform list, then update the
|
|
* list.
|
|
*/
|
|
*aTail = toAppend.forget();
|
|
aTail = &(*aTail)->mNext;
|
|
|
|
/* It worked! Return true. */
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/* Parses a -moz-transform property list by continuously reading in properties
|
|
* and constructing a matrix from it.
|
|
*/
|
|
PRBool CSSParserImpl::ParseMozTransform()
|
|
{
|
|
mTempData.mDisplay.mTransform = nsnull;
|
|
|
|
/* First, check to see if this is some sort of keyword - none, inherit,
|
|
* or initial.
|
|
*/
|
|
nsCSSValue keywordValue;
|
|
if (ParseVariant(keywordValue, VARIANT_INHERIT | VARIANT_NONE, nsnull)) {
|
|
/* Looks like it is. Make a new value list and fill it in, failing if
|
|
* we can't.
|
|
*/
|
|
mTempData.mDisplay.mTransform = new nsCSSValueList;
|
|
if (!mTempData.mDisplay.mTransform) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Inform the parser that everything worked. */
|
|
mTempData.mDisplay.mTransform->mValue = keywordValue;
|
|
mTempData.SetPropertyBit(eCSSProperty__moz_transform);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/* We will read a nonempty list of transforms. Thus we'll read in a
|
|
* transform, then continuously read transforms until we're no longer
|
|
* able to do so.
|
|
*/
|
|
nsCSSValueList *transformList = nsnull;
|
|
nsCSSValueList **tail = &transformList;
|
|
do {
|
|
/* Try reading a transform. If we fail to do so, abort. */
|
|
if (!ReadSingleTransform(tail)) {
|
|
delete transformList;
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
while (!CheckEndProperty());
|
|
|
|
/* Confirm that this is the end of the property and set error code
|
|
* appropriately otherwise.
|
|
*/
|
|
if (!ExpectEndProperty()) {
|
|
delete transformList;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/* Validate our data. */
|
|
NS_ASSERTION(transformList, "Didn't read any transforms!");
|
|
|
|
mTempData.SetPropertyBit(eCSSProperty__moz_transform);
|
|
mTempData.mDisplay.mTransform = transformList;
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool CSSParserImpl::ParseMozTransformOrigin()
|
|
{
|
|
/* Read in a box position, fail if we can't. */
|
|
if (!ParseBoxPositionValues(mTempData.mDisplay.mTransformOrigin) ||
|
|
!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
/* Set the property bit and return. */
|
|
mTempData.SetPropertyBit(eCSSProperty__moz_transform_origin);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFamily(nsCSSValue& aValue)
|
|
{
|
|
if (!GetToken(PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
if (eCSSToken_Ident == mToken.mType) {
|
|
nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(mToken.mIdent);
|
|
if (keyword == eCSSKeyword_inherit) {
|
|
aValue.SetInheritValue();
|
|
return PR_TRUE;
|
|
}
|
|
if (keyword == eCSSKeyword__moz_initial) {
|
|
aValue.SetInitialValue();
|
|
return PR_TRUE;
|
|
}
|
|
if (keyword == eCSSKeyword__moz_use_system_font &&
|
|
!IsParsingCompoundProperty()) {
|
|
aValue.SetSystemFontValue();
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
UngetToken();
|
|
|
|
nsAutoString family;
|
|
for (;;) {
|
|
if (!ParseOneFamily(family))
|
|
return PR_FALSE;
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE))
|
|
break;
|
|
|
|
family.Append(PRUnichar(','));
|
|
}
|
|
|
|
if (family.IsEmpty()) {
|
|
return PR_FALSE;
|
|
}
|
|
aValue.SetStringValue(family, eCSSUnit_Families);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// src: ( uri-src | local-src ) (',' ( uri-src | local-src ) )*
|
|
// uri-src: uri [ 'format(' string ( ',' string )* ')' ]
|
|
// local-src: 'local(' ( string | ident ) ')'
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFontSrc(nsCSSValue& aValue)
|
|
{
|
|
// could we maybe turn nsCSSValue::Array into nsTArray<nsCSSValue>?
|
|
nsTArray<nsCSSValue> values;
|
|
nsCSSValue cur;
|
|
for (;;) {
|
|
if (!GetToken(PR_TRUE))
|
|
break;
|
|
|
|
if (mToken.mType == eCSSToken_Function &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("url")) {
|
|
if (!ParseURL(cur))
|
|
return PR_FALSE;
|
|
values.AppendElement(cur);
|
|
if (!ParseFontSrcFormat(values))
|
|
return PR_FALSE;
|
|
|
|
} else if (mToken.mType == eCSSToken_Function &&
|
|
mToken.mIdent.LowerCaseEqualsLiteral("local")) {
|
|
// css3-fonts does not specify a formal grammar for local().
|
|
// The text permits both unquoted identifiers and quoted
|
|
// strings. We resolve this ambiguity in the spec by
|
|
// assuming that the appropriate production is a single
|
|
// <family-name>, possibly surrounded by whitespace.
|
|
|
|
nsAutoString family;
|
|
if (!ExpectSymbol('(', PR_FALSE))
|
|
return PR_FALSE;
|
|
if (!ParseOneFamily(family))
|
|
return PR_FALSE;
|
|
if (!ExpectSymbol(')', PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
// the style parameters to the nsFont constructor are ignored,
|
|
// because it's only being used to call EnumerateFamilies
|
|
nsFont font(family, 0, 0, 0, 0, 0, 0);
|
|
ExtractFirstFamilyData dat;
|
|
|
|
font.EnumerateFamilies(ExtractFirstFamily, (void*) &dat);
|
|
if (!dat.mGood)
|
|
return PR_FALSE;
|
|
|
|
cur.SetStringValue(dat.mFamilyName, eCSSUnit_Local_Font);
|
|
values.AppendElement(cur);
|
|
} else {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE))
|
|
break;
|
|
}
|
|
|
|
nsRefPtr<nsCSSValue::Array> srcVals
|
|
= nsCSSValue::Array::Create(values.Length());
|
|
if (!srcVals)
|
|
return PR_FALSE;
|
|
|
|
PRUint32 i;
|
|
for (i = 0; i < values.Length(); i++)
|
|
srcVals->Item(i) = values[i];
|
|
aValue.SetArrayValue(srcVals, eCSSUnit_Array);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseFontSrcFormat(nsTArray<nsCSSValue> & values)
|
|
{
|
|
if (!GetToken(PR_TRUE))
|
|
return PR_TRUE; // EOF harmless here
|
|
if (mToken.mType != eCSSToken_Function ||
|
|
!mToken.mIdent.LowerCaseEqualsLiteral("format")) {
|
|
UngetToken();
|
|
return PR_TRUE;
|
|
}
|
|
if (!ExpectSymbol('(', PR_FALSE))
|
|
return PR_FALSE;
|
|
|
|
do {
|
|
if (!GetToken(PR_TRUE))
|
|
return PR_FALSE;
|
|
|
|
if (mToken.mType != eCSSToken_String)
|
|
return PR_FALSE;
|
|
|
|
nsCSSValue cur(mToken.mIdent, eCSSUnit_Font_Format);
|
|
values.AppendElement(cur);
|
|
} while (ExpectSymbol(',', PR_TRUE));
|
|
|
|
return ExpectSymbol(')', PR_TRUE);
|
|
}
|
|
|
|
// font-ranges: urange ( ',' urange )*
|
|
PRBool
|
|
CSSParserImpl::ParseFontRanges(nsCSSValue& aValue)
|
|
{
|
|
// not currently implemented (bug 443976)
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseListStyle()
|
|
{
|
|
// 'list-style' can accept 'none' for two different subproperties,
|
|
// 'list-style-type' and 'list-style-position'. In order to accept
|
|
// 'none' as the value of either but still allow another value for
|
|
// either, we need to ensure that the first 'none' we find gets
|
|
// allocated to a dummy property instead.
|
|
static const nsCSSProperty listStyleIDs[] = {
|
|
eCSSPropertyExtra_x_none_value,
|
|
eCSSProperty_list_style_type,
|
|
eCSSProperty_list_style_position,
|
|
eCSSProperty_list_style_image
|
|
};
|
|
|
|
nsCSSValue values[NS_ARRAY_LENGTH(listStyleIDs)];
|
|
PRInt32 found =
|
|
ParseChoice(values, listStyleIDs, NS_ARRAY_LENGTH(listStyleIDs));
|
|
if (found < 1 || !ExpectEndProperty()) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if ((found & (1|2|8)) == (1|2|8)) {
|
|
if (values[0].GetUnit() == eCSSUnit_None) {
|
|
// We found a 'none' plus another value for both of
|
|
// 'list-style-type' and 'list-style-image'. This is a parse
|
|
// error, since the 'none' has to count for at least one of them.
|
|
return PR_FALSE;
|
|
} else {
|
|
NS_ASSERTION(found == (1|2|4|8) && values[0] == values[1] &&
|
|
values[0] == values[2] && values[0] == values[3],
|
|
"should be a special value");
|
|
}
|
|
}
|
|
|
|
// Provide default values
|
|
if ((found & 2) == 0) {
|
|
if (found & 1) {
|
|
values[1].SetNoneValue();
|
|
} else {
|
|
values[1].SetIntValue(NS_STYLE_LIST_STYLE_DISC, eCSSUnit_Enumerated);
|
|
}
|
|
}
|
|
if ((found & 4) == 0) {
|
|
values[2].SetIntValue(NS_STYLE_LIST_STYLE_POSITION_OUTSIDE,
|
|
eCSSUnit_Enumerated);
|
|
}
|
|
if ((found & 8) == 0) {
|
|
values[3].SetNoneValue();
|
|
}
|
|
|
|
// Start at 1 to avoid appending fake value.
|
|
for (PRUint32 index = 1; index < NS_ARRAY_LENGTH(listStyleIDs); ++index) {
|
|
AppendValue(listStyleIDs[index], values[index]);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseMargin()
|
|
{
|
|
static const nsCSSProperty kMarginSideIDs[] = {
|
|
eCSSProperty_margin_top,
|
|
eCSSProperty_margin_right_value,
|
|
eCSSProperty_margin_bottom,
|
|
eCSSProperty_margin_left_value
|
|
};
|
|
static const nsCSSProperty kMarginSources[] = {
|
|
eCSSProperty_margin_left_ltr_source,
|
|
eCSSProperty_margin_left_rtl_source,
|
|
eCSSProperty_margin_right_ltr_source,
|
|
eCSSProperty_margin_right_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
// do this now, in case 4 values weren't specified
|
|
InitBoxPropsAsPhysical(kMarginSources);
|
|
return ParseBoxProperties(mTempData.mMargin.mMargin,
|
|
kMarginSideIDs);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseMarks(nsCSSValue& aValue)
|
|
{
|
|
if (ParseVariant(aValue, VARIANT_HOK, nsCSSProps::kPageMarksKTable)) {
|
|
if (eCSSUnit_Enumerated == aValue.GetUnit()) {
|
|
if (PR_FALSE == CheckEndProperty()) {
|
|
nsCSSValue second;
|
|
if (ParseEnum(second, nsCSSProps::kPageMarksKTable)) {
|
|
aValue.SetIntValue(aValue.GetIntValue() | second.GetIntValue(), eCSSUnit_Enumerated);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseOutline()
|
|
{
|
|
const PRInt32 numProps = 3;
|
|
static const nsCSSProperty kOutlineIDs[] = {
|
|
eCSSProperty_outline_color,
|
|
eCSSProperty_outline_style,
|
|
eCSSProperty_outline_width
|
|
};
|
|
|
|
nsCSSValue values[numProps];
|
|
PRInt32 found = ParseChoice(values, kOutlineIDs, numProps);
|
|
if ((found < 1) || (PR_FALSE == ExpectEndProperty())) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// Provide default values
|
|
if ((found & 1) == 0) {
|
|
#ifdef GFX_HAS_INVERT
|
|
values[0].SetIntValue(NS_STYLE_COLOR_INVERT, eCSSUnit_Enumerated);
|
|
#else
|
|
values[0].SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
|
|
#endif
|
|
}
|
|
if ((found & 2) == 0) {
|
|
values[1].SetNoneValue();
|
|
}
|
|
if ((found & 4) == 0) {
|
|
values[2].SetIntValue(NS_STYLE_BORDER_WIDTH_MEDIUM, eCSSUnit_Enumerated);
|
|
}
|
|
|
|
PRInt32 index;
|
|
for (index = 0; index < numProps; index++) {
|
|
AppendValue(kOutlineIDs[index], values[index]);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseOverflow()
|
|
{
|
|
nsCSSValue overflow;
|
|
if (!ParseVariant(overflow, VARIANT_AHK,
|
|
nsCSSProps::kOverflowKTable) ||
|
|
!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
nsCSSValue overflowX(overflow);
|
|
nsCSSValue overflowY(overflow);
|
|
if (eCSSUnit_Enumerated == overflow.GetUnit())
|
|
switch(overflow.GetIntValue()) {
|
|
case NS_STYLE_OVERFLOW_SCROLLBARS_HORIZONTAL:
|
|
overflowX.SetIntValue(NS_STYLE_OVERFLOW_SCROLL, eCSSUnit_Enumerated);
|
|
overflowY.SetIntValue(NS_STYLE_OVERFLOW_HIDDEN, eCSSUnit_Enumerated);
|
|
break;
|
|
case NS_STYLE_OVERFLOW_SCROLLBARS_VERTICAL:
|
|
overflowX.SetIntValue(NS_STYLE_OVERFLOW_HIDDEN, eCSSUnit_Enumerated);
|
|
overflowY.SetIntValue(NS_STYLE_OVERFLOW_SCROLL, eCSSUnit_Enumerated);
|
|
break;
|
|
}
|
|
AppendValue(eCSSProperty_overflow_x, overflowX);
|
|
AppendValue(eCSSProperty_overflow_y, overflowY);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParsePadding()
|
|
{
|
|
static const nsCSSProperty kPaddingSideIDs[] = {
|
|
eCSSProperty_padding_top,
|
|
eCSSProperty_padding_right_value,
|
|
eCSSProperty_padding_bottom,
|
|
eCSSProperty_padding_left_value
|
|
};
|
|
static const nsCSSProperty kPaddingSources[] = {
|
|
eCSSProperty_padding_left_ltr_source,
|
|
eCSSProperty_padding_left_rtl_source,
|
|
eCSSProperty_padding_right_ltr_source,
|
|
eCSSProperty_padding_right_rtl_source,
|
|
eCSSProperty_UNKNOWN
|
|
};
|
|
|
|
// do this now, in case 4 values weren't specified
|
|
InitBoxPropsAsPhysical(kPaddingSources);
|
|
return ParseBoxProperties(mTempData.mMargin.mPadding,
|
|
kPaddingSideIDs);
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParsePause()
|
|
{
|
|
nsCSSValue before;
|
|
if (ParseSingleValueProperty(before, eCSSProperty_pause_before)) {
|
|
if (eCSSUnit_Inherit != before.GetUnit() && eCSSUnit_Initial != before.GetUnit()) {
|
|
nsCSSValue after;
|
|
if (ParseSingleValueProperty(after, eCSSProperty_pause_after)) {
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty_pause_before, before);
|
|
AppendValue(eCSSProperty_pause_after, after);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty_pause_before, before);
|
|
AppendValue(eCSSProperty_pause_after, before);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseQuotes()
|
|
{
|
|
nsCSSValue open;
|
|
if (ParseVariant(open, VARIANT_HOS, nsnull)) {
|
|
if (eCSSUnit_String == open.GetUnit()) {
|
|
nsCSSValuePairList* quotesHead = new nsCSSValuePairList();
|
|
nsCSSValuePairList* quotes = quotesHead;
|
|
if (nsnull == quotes) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
quotes->mXValue = open;
|
|
while (nsnull != quotes) {
|
|
// get mandatory close
|
|
if (ParseVariant(quotes->mYValue, VARIANT_STRING,
|
|
nsnull)) {
|
|
if (CheckEndProperty()) {
|
|
mTempData.SetPropertyBit(eCSSProperty_quotes);
|
|
mTempData.mContent.mQuotes = quotesHead;
|
|
return PR_TRUE;
|
|
}
|
|
// look for another open
|
|
if (ParseVariant(open, VARIANT_STRING, nsnull)) {
|
|
quotes->mNext = new nsCSSValuePairList();
|
|
quotes = quotes->mNext;
|
|
if (nsnull != quotes) {
|
|
quotes->mXValue = open;
|
|
continue;
|
|
}
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
delete quotesHead;
|
|
return PR_FALSE;
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
nsCSSValuePairList* quotesHead = new nsCSSValuePairList();
|
|
quotesHead->mXValue = open;
|
|
mTempData.mContent.mQuotes = quotesHead;
|
|
mTempData.SetPropertyBit(eCSSProperty_quotes);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseSize()
|
|
{
|
|
nsCSSValue width;
|
|
if (ParseVariant(width, VARIANT_AHKL, nsCSSProps::kPageSizeKTable)) {
|
|
if (width.IsLengthUnit()) {
|
|
nsCSSValue height;
|
|
if (ParseVariant(height, VARIANT_LENGTH, nsnull)) {
|
|
if (ExpectEndProperty()) {
|
|
mTempData.mPage.mSize.mXValue = width;
|
|
mTempData.mPage.mSize.mYValue = height;
|
|
mTempData.SetPropertyBit(eCSSProperty_size);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
if (ExpectEndProperty()) {
|
|
mTempData.mPage.mSize.SetBothValuesTo(width);
|
|
mTempData.SetPropertyBit(eCSSProperty_size);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseTextDecoration(nsCSSValue& aValue)
|
|
{
|
|
if (ParseVariant(aValue, VARIANT_HOK, nsCSSProps::kTextDecorationKTable)) {
|
|
if (eCSSUnit_Enumerated == aValue.GetUnit()) { // look for more keywords
|
|
PRInt32 intValue = aValue.GetIntValue();
|
|
nsCSSValue keyword;
|
|
PRInt32 index;
|
|
for (index = 0; index < 3; index++) {
|
|
if (ParseEnum(keyword, nsCSSProps::kTextDecorationKTable)) {
|
|
PRInt32 newValue = keyword.GetIntValue();
|
|
if (newValue & intValue) {
|
|
// duplicate keyword is not allowed
|
|
return PR_FALSE;
|
|
}
|
|
intValue |= newValue;
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
aValue.SetIntValue(intValue, eCSSUnit_Enumerated);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsCSSValueList*
|
|
CSSParserImpl::ParseCSSShadowList(PRBool aIsBoxShadow)
|
|
{
|
|
nsAutoParseCompoundProperty compound(this);
|
|
|
|
// Parses x, y, radius, color (in two possible orders)
|
|
// This parses the input into a list. Either it contains just a "none" or
|
|
// "inherit" value, or a list of arrays.
|
|
// The resulting arrays will always contain the above order, with color and
|
|
// radius as null values as needed
|
|
enum {
|
|
IndexX,
|
|
IndexY,
|
|
IndexRadius,
|
|
IndexSpread,
|
|
IndexColor,
|
|
IndexInset
|
|
};
|
|
|
|
nsCSSValueList *list = nsnull;
|
|
for (nsCSSValueList **curp = &list, *cur; ; curp = &cur->mNext) {
|
|
cur = *curp = new nsCSSValueList();
|
|
if (!cur) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
|
|
nsCSSValue isInset;
|
|
if (aIsBoxShadow) {
|
|
// Optional inset keyword (ignore errors)
|
|
ParseVariant(isInset, VARIANT_KEYWORD,
|
|
nsCSSProps::kBoxShadowTypeKTable);
|
|
}
|
|
|
|
PRBool isFirstToken = (cur == list && isInset.GetUnit() == eCSSUnit_Null);
|
|
if (!ParseVariant(cur->mValue,
|
|
isFirstToken ? VARIANT_HC | VARIANT_LENGTH | VARIANT_NONE
|
|
: VARIANT_COLOR | VARIANT_LENGTH,
|
|
nsnull)) {
|
|
break;
|
|
}
|
|
|
|
nsCSSUnit unit = cur->mValue.GetUnit();
|
|
if (unit != eCSSUnit_None && unit != eCSSUnit_Inherit &&
|
|
unit != eCSSUnit_Initial) {
|
|
nsRefPtr<nsCSSValue::Array> val = nsCSSValue::Array::Create(6);
|
|
if (!val) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
PRBool haveColor = PR_FALSE;
|
|
if (cur->mValue.IsLengthUnit()) {
|
|
val->Item(IndexX) = cur->mValue;
|
|
} else {
|
|
// Must be a color (as string or color value)
|
|
NS_ASSERTION(unit == eCSSUnit_Ident || unit == eCSSUnit_Color ||
|
|
unit == eCSSUnit_EnumColor,
|
|
"Must be a color value (named color, numeric color, "
|
|
"or system color)");
|
|
haveColor = PR_TRUE;
|
|
val->Item(IndexColor) = cur->mValue;
|
|
|
|
// Parse the X coordinate
|
|
if (!ParseVariant(val->Item(IndexX), VARIANT_LENGTH,
|
|
nsnull)) {
|
|
break;
|
|
}
|
|
}
|
|
cur->mValue.SetArrayValue(val, eCSSUnit_Array);
|
|
|
|
// Y coordinate; this one is not optional
|
|
if (!ParseVariant(val->Item(IndexY), VARIANT_LENGTH, nsnull)) {
|
|
break;
|
|
}
|
|
|
|
// Optional radius. Ignore errors except if they pass a negative
|
|
// value which we must reject. If we use ParseNonNegativeVariant we can't
|
|
// tell the difference between an unspecified radius and a negative
|
|
// radius, so that's why we don't use it.
|
|
if (ParseVariant(val->Item(IndexRadius), VARIANT_LENGTH, nsnull) &&
|
|
val->Item(IndexRadius).GetFloatValue() < 0) {
|
|
break;
|
|
}
|
|
|
|
if (aIsBoxShadow) {
|
|
// Optional spread (ignore errors)
|
|
ParseVariant(val->Item(IndexSpread), VARIANT_LENGTH,
|
|
nsnull);
|
|
}
|
|
|
|
if (!haveColor) {
|
|
// Optional color (ignore errors)
|
|
ParseVariant(val->Item(IndexColor), VARIANT_COLOR,
|
|
nsnull);
|
|
}
|
|
|
|
if (aIsBoxShadow && isInset.GetUnit() == eCSSUnit_Null) {
|
|
// Optional inset keyword (ignore errors)
|
|
ParseVariant(val->Item(IndexInset), VARIANT_KEYWORD,
|
|
nsCSSProps::kBoxShadowTypeKTable);
|
|
} else if (isInset.GetUnit() == eCSSUnit_Enumerated) {
|
|
val->Item(IndexInset) = isInset;
|
|
}
|
|
|
|
// Might be at a comma now
|
|
if (ExpectSymbol(',', PR_TRUE)) {
|
|
// Go to next value
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!ExpectEndProperty()) {
|
|
// If we don't have a comma to delimit the next value, we
|
|
// must be at the end of the property. Otherwise we've hit
|
|
// something else, which is an error.
|
|
break;
|
|
}
|
|
|
|
// Only success case here, since having the failure case at the
|
|
// end allows more sharing of code.
|
|
return list;
|
|
}
|
|
// Have failure case at the end so we can |break| to get to it.
|
|
delete list;
|
|
return nsnull;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseTextShadow()
|
|
{
|
|
nsCSSValueList* list = ParseCSSShadowList(PR_FALSE);
|
|
if (!list)
|
|
return PR_FALSE;
|
|
|
|
mTempData.SetPropertyBit(eCSSProperty_text_shadow);
|
|
mTempData.mText.mTextShadow = list;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseBoxShadow()
|
|
{
|
|
nsCSSValueList* list = ParseCSSShadowList(PR_TRUE);
|
|
if (!list)
|
|
return PR_FALSE;
|
|
|
|
mTempData.SetPropertyBit(eCSSProperty_box_shadow);
|
|
mTempData.mMargin.mBoxShadow = list;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::GetNamespaceIdForPrefix(const nsString& aPrefix,
|
|
PRInt32* aNameSpaceID)
|
|
{
|
|
NS_PRECONDITION(!aPrefix.IsEmpty(), "Must have a prefix here");
|
|
|
|
PRInt32 nameSpaceID = kNameSpaceID_Unknown;
|
|
if (mNameSpaceMap) {
|
|
// user-specified identifiers are case-sensitive (bug 416106)
|
|
nsCOMPtr<nsIAtom> prefix = do_GetAtom(aPrefix);
|
|
nameSpaceID = mNameSpaceMap->FindNameSpaceID(prefix);
|
|
}
|
|
// else no declared namespaces
|
|
|
|
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
|
|
const PRUnichar *params[] = {
|
|
aPrefix.get()
|
|
};
|
|
REPORT_UNEXPECTED_P(PEUnknownNamespacePrefix, params);
|
|
if (mUnresolvablePrefixException)
|
|
mScanner.SetLowLevelError(NS_ERROR_DOM_NAMESPACE_ERR);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
*aNameSpaceID = nameSpaceID;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
void
|
|
CSSParserImpl::SetDefaultNamespaceOnSelector(nsCSSSelector& aSelector)
|
|
{
|
|
if (mNameSpaceMap) {
|
|
aSelector.SetNameSpace(mNameSpaceMap->FindNameSpaceID(nsnull));
|
|
} else {
|
|
aSelector.SetNameSpace(kNameSpaceID_Unknown); // wildcard
|
|
}
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
PRBool
|
|
CSSParserImpl::ParsePaint(nsCSSValuePair* aResult,
|
|
nsCSSProperty aPropID)
|
|
{
|
|
if (!ParseVariant(aResult->mXValue,
|
|
VARIANT_HC | VARIANT_NONE | VARIANT_URL,
|
|
nsnull))
|
|
return PR_FALSE;
|
|
|
|
if (aResult->mXValue.GetUnit() == eCSSUnit_URL) {
|
|
if (!ParseVariant(aResult->mYValue, VARIANT_COLOR | VARIANT_NONE,
|
|
nsnull))
|
|
aResult->mYValue.SetColorValue(NS_RGB(0, 0, 0));
|
|
} else {
|
|
aResult->mYValue = aResult->mXValue;
|
|
}
|
|
|
|
if (!ExpectEndProperty())
|
|
return PR_FALSE;
|
|
|
|
mTempData.SetPropertyBit(aPropID);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseDasharray()
|
|
{
|
|
nsCSSValue value;
|
|
if (ParseVariant(value, VARIANT_HLPN | VARIANT_NONE, nsnull)) {
|
|
nsCSSValueList *listHead = new nsCSSValueList;
|
|
nsCSSValueList *list = listHead;
|
|
if (!list) {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
list->mValue = value;
|
|
|
|
for (;;) {
|
|
if (CheckEndProperty()) {
|
|
mTempData.SetPropertyBit(eCSSProperty_stroke_dasharray);
|
|
mTempData.mSVG.mStrokeDasharray = listHead;
|
|
return PR_TRUE;
|
|
}
|
|
|
|
if (eCSSUnit_Inherit == value.GetUnit() ||
|
|
eCSSUnit_Initial == value.GetUnit() ||
|
|
eCSSUnit_None == value.GetUnit())
|
|
break;
|
|
|
|
if (!ExpectSymbol(',', PR_TRUE))
|
|
break;
|
|
|
|
if (!ParseVariant(value,
|
|
VARIANT_LENGTH | VARIANT_PERCENT | VARIANT_NUMBER,
|
|
nsnull))
|
|
break;
|
|
|
|
list->mNext = new nsCSSValueList;
|
|
list = list->mNext;
|
|
if (list)
|
|
list->mValue = value;
|
|
else {
|
|
mScanner.SetLowLevelError(NS_ERROR_OUT_OF_MEMORY);
|
|
break;
|
|
}
|
|
}
|
|
delete listHead;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
CSSParserImpl::ParseMarker()
|
|
{
|
|
nsCSSValue marker;
|
|
if (ParseSingleValueProperty(marker, eCSSProperty_marker_end)) {
|
|
if (ExpectEndProperty()) {
|
|
AppendValue(eCSSProperty_marker_end, marker);
|
|
AppendValue(eCSSProperty_marker_mid, marker);
|
|
AppendValue(eCSSProperty_marker_start, marker);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
#endif
|