mirror of
https://github.com/mozilla/gecko-dev.git
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cdd39b8817
(instead of an env var) bug 299681 patch by Christian Persch <chpe@gnome.org> r+sr=roc a=bsmedberg
556 lines
16 KiB
C++
556 lines
16 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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*
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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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#include "nsCSSValue.h"
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#include "nsString.h"
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#include "nsCSSProps.h"
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#include "nsReadableUtils.h"
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#include "imgIRequest.h"
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#include "nsIDocument.h"
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#include "nsContentUtils.h"
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// Paint forcing
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#include "prenv.h"
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//#include "nsStyleConsts.h"
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nsCSSValue::nsCSSValue(PRInt32 aValue, nsCSSUnit aUnit)
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: mUnit(aUnit)
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{
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NS_ASSERTION((eCSSUnit_Integer == aUnit) ||
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(eCSSUnit_Enumerated == aUnit), "not an int value");
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if ((eCSSUnit_Integer == aUnit) ||
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(eCSSUnit_Enumerated == aUnit)) {
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mValue.mInt = aValue;
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}
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else {
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mUnit = eCSSUnit_Null;
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mValue.mInt = 0;
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}
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}
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nsCSSValue::nsCSSValue(float aValue, nsCSSUnit aUnit)
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: mUnit(aUnit)
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{
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NS_ASSERTION(eCSSUnit_Percent <= aUnit, "not a float value");
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if (eCSSUnit_Percent <= aUnit) {
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mValue.mFloat = aValue;
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}
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else {
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mUnit = eCSSUnit_Null;
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mValue.mInt = 0;
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}
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}
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nsCSSValue::nsCSSValue(const nsAString& aValue, nsCSSUnit aUnit)
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: mUnit(aUnit)
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{
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NS_ASSERTION((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Attr), "not a string value");
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if ((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Attr)) {
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mValue.mString = ToNewUnicode(aValue);
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}
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else {
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mUnit = eCSSUnit_Null;
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mValue.mInt = 0;
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}
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}
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nsCSSValue::nsCSSValue(nscolor aValue)
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: mUnit(eCSSUnit_Color)
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{
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mValue.mColor = aValue;
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}
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nsCSSValue::nsCSSValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
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: mUnit(aUnit)
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{
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NS_ASSERTION(eCSSUnit_Array <= aUnit && aUnit <= eCSSUnit_Counters,
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"bad unit");
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mValue.mArray = aValue;
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mValue.mArray->AddRef();
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}
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nsCSSValue::nsCSSValue(nsCSSValue::URL* aValue)
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: mUnit(eCSSUnit_URL)
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{
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mValue.mURL = aValue;
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mValue.mURL->AddRef();
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}
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nsCSSValue::nsCSSValue(nsCSSValue::Image* aValue)
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: mUnit(eCSSUnit_Image)
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{
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mValue.mImage = aValue;
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mValue.mImage->AddRef();
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}
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nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
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: mUnit(aCopy.mUnit)
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{
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if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Attr)) {
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if (nsnull != aCopy.mValue.mString) {
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mValue.mString = nsCRT::strdup(aCopy.mValue.mString);
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}
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else {
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mValue.mString = nsnull;
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}
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}
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else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
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mValue.mInt = aCopy.mValue.mInt;
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}
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else if (eCSSUnit_Color == mUnit){
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mValue.mColor = aCopy.mValue.mColor;
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}
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else if (eCSSUnit_Array <= mUnit && mUnit <= eCSSUnit_Counters) {
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mValue.mArray = aCopy.mValue.mArray;
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mValue.mArray->AddRef();
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}
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else if (eCSSUnit_URL == mUnit){
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mValue.mURL = aCopy.mValue.mURL;
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mValue.mURL->AddRef();
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}
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else if (eCSSUnit_Image == mUnit){
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mValue.mImage = aCopy.mValue.mImage;
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mValue.mImage->AddRef();
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}
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else {
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mValue.mFloat = aCopy.mValue.mFloat;
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}
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}
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nsCSSValue::~nsCSSValue()
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{
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Reset();
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}
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nsCSSValue& nsCSSValue::operator=(const nsCSSValue& aCopy)
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{
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if (this != &aCopy) {
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Reset();
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new (this) nsCSSValue(aCopy);
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}
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return *this;
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}
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PRBool nsCSSValue::operator==(const nsCSSValue& aOther) const
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{
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if (mUnit == aOther.mUnit) {
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if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Attr)) {
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if (nsnull == mValue.mString) {
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if (nsnull == aOther.mValue.mString) {
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return PR_TRUE;
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}
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}
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else if (nsnull != aOther.mValue.mString) {
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return (nsCRT::strcmp(mValue.mString, aOther.mValue.mString) == 0);
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}
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}
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else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
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return mValue.mInt == aOther.mValue.mInt;
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}
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else if (eCSSUnit_Color == mUnit) {
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return mValue.mColor == aOther.mValue.mColor;
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}
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else if (eCSSUnit_Array <= mUnit && mUnit <= eCSSUnit_Counters) {
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return *mValue.mArray == *aOther.mValue.mArray;
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}
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else if (eCSSUnit_URL == mUnit) {
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return *mValue.mURL == *aOther.mValue.mURL;
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}
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else if (eCSSUnit_Image == mUnit) {
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return *mValue.mImage == *aOther.mValue.mImage;
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}
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else {
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return mValue.mFloat == aOther.mValue.mFloat;
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}
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}
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return PR_FALSE;
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}
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imgIRequest* nsCSSValue::GetImageValue() const
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{
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NS_ASSERTION(mUnit == eCSSUnit_Image, "not an Image value");
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return mValue.mImage->mRequest;
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}
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nscoord nsCSSValue::GetLengthTwips() const
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{
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NS_ASSERTION(IsFixedLengthUnit(), "not a fixed length unit");
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if (IsFixedLengthUnit()) {
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switch (mUnit) {
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case eCSSUnit_Inch:
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return NS_INCHES_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Foot:
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return NS_FEET_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Mile:
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return NS_MILES_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Millimeter:
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return NS_MILLIMETERS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Centimeter:
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return NS_CENTIMETERS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Meter:
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return NS_METERS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Kilometer:
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return NS_KILOMETERS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Point:
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return NSFloatPointsToTwips(mValue.mFloat);
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case eCSSUnit_Pica:
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return NS_PICAS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Didot:
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return NS_DIDOTS_TO_TWIPS(mValue.mFloat);
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case eCSSUnit_Cicero:
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return NS_CICEROS_TO_TWIPS(mValue.mFloat);
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default:
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NS_ERROR("should never get here");
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break;
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}
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}
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return 0;
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}
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void nsCSSValue::SetIntValue(PRInt32 aValue, nsCSSUnit aUnit)
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{
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NS_ASSERTION((eCSSUnit_Integer == aUnit) ||
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(eCSSUnit_Enumerated == aUnit), "not an int value");
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Reset();
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if ((eCSSUnit_Integer == aUnit) ||
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(eCSSUnit_Enumerated == aUnit)) {
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mUnit = aUnit;
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mValue.mInt = aValue;
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}
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}
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void nsCSSValue::SetPercentValue(float aValue)
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{
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Reset();
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mUnit = eCSSUnit_Percent;
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mValue.mFloat = aValue;
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}
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void nsCSSValue::SetFloatValue(float aValue, nsCSSUnit aUnit)
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{
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NS_ASSERTION(eCSSUnit_Number <= aUnit, "not a float value");
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Reset();
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if (eCSSUnit_Number <= aUnit) {
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mUnit = aUnit;
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mValue.mFloat = aValue;
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}
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}
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void nsCSSValue::SetStringValue(const nsAString& aValue,
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nsCSSUnit aUnit)
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{
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NS_ASSERTION((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Attr), "not a string unit");
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Reset();
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if ((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Attr)) {
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mUnit = aUnit;
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mValue.mString = ToNewUnicode(aValue);
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}
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}
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void nsCSSValue::SetColorValue(nscolor aValue)
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{
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Reset();
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mUnit = eCSSUnit_Color;
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mValue.mColor = aValue;
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}
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void nsCSSValue::SetArrayValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
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{
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NS_ASSERTION(eCSSUnit_Array <= aUnit && aUnit <= eCSSUnit_Counters,
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"bad unit");
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Reset();
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mUnit = aUnit;
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mValue.mArray = aValue;
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mValue.mArray->AddRef();
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}
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void nsCSSValue::SetURLValue(nsCSSValue::URL* aValue)
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{
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Reset();
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mUnit = eCSSUnit_URL;
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mValue.mURL = aValue;
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mValue.mURL->AddRef();
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}
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void nsCSSValue::SetImageValue(nsCSSValue::Image* aValue)
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{
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Reset();
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mUnit = eCSSUnit_Image;
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mValue.mImage = aValue;
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mValue.mImage->AddRef();
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}
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void nsCSSValue::SetAutoValue()
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{
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Reset();
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mUnit = eCSSUnit_Auto;
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}
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void nsCSSValue::SetInheritValue()
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{
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Reset();
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mUnit = eCSSUnit_Inherit;
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}
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void nsCSSValue::SetInitialValue()
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{
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Reset();
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mUnit = eCSSUnit_Initial;
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}
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void nsCSSValue::SetNoneValue()
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{
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Reset();
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mUnit = eCSSUnit_None;
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}
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void nsCSSValue::SetNormalValue()
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{
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Reset();
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mUnit = eCSSUnit_Normal;
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}
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void nsCSSValue::StartImageLoad(nsIDocument* aDocument, PRBool aIsBGImage) const
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{
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NS_PRECONDITION(eCSSUnit_URL == mUnit, "Not a URL value!");
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nsCSSValue::Image* image =
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new nsCSSValue::Image(mValue.mURL->mURI,
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mValue.mURL->mString,
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mValue.mURL->mReferrer,
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aDocument, aIsBGImage);
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if (image) {
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if (image->mString) {
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nsCSSValue* writable = NS_CONST_CAST(nsCSSValue*, this);
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writable->SetImageValue(image);
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} else {
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delete image;
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}
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}
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}
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nsCSSValue::Image::Image(nsIURI* aURI, const PRUnichar* aString,
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nsIURI* aReferrer, nsIDocument* aDocument,
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PRBool aIsBGImage)
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: URL(aURI, aString, aReferrer)
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{
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MOZ_COUNT_CTOR(nsCSSValue::Image);
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// Check for failed mString allocation first
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if (!mString)
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return;
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// If the pref is enabled, force all background image loads to
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// complete before firing onload for the document. Otherwise, background
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// image loads are special and don't block onload.
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PRInt32 loadFlag = (PRInt32)nsIRequest::LOAD_NORMAL;
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if (aIsBGImage) {
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static PRBool onloadAfterImageBackgroundLoads =
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nsContentUtils::GetBoolPref
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("layout.fire_onload_after_image_background_loads");
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if (!onloadAfterImageBackgroundLoads) {
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loadFlag = (PRInt32)nsIRequest::LOAD_BACKGROUND;
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}
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}
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if (mURI &&
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nsContentUtils::CanLoadImage(mURI, aDocument, aDocument)) {
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nsContentUtils::LoadImage(mURI, aDocument, aReferrer, nsnull,
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loadFlag,
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getter_AddRefs(mRequest));
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}
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}
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nsCSSValue::Image::~Image()
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{
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MOZ_COUNT_DTOR(nsCSSValue::Image);
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}
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#ifdef DEBUG
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void nsCSSValue::AppendToString(nsAString& aBuffer,
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nsCSSProperty aPropID) const
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{
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if (eCSSUnit_Null == mUnit) {
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return;
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}
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if (-1 < aPropID) {
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AppendASCIItoUTF16(nsCSSProps::GetStringValue(aPropID), aBuffer);
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aBuffer.AppendLiteral(": ");
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}
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switch (mUnit) {
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case eCSSUnit_Image:
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case eCSSUnit_URL: aBuffer.AppendLiteral("url("); break;
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case eCSSUnit_Attr: aBuffer.AppendLiteral("attr("); break;
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case eCSSUnit_Counter: aBuffer.AppendLiteral("counter("); break;
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case eCSSUnit_Counters: aBuffer.AppendLiteral("counters("); break;
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default: break;
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}
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if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Attr)) {
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if (nsnull != mValue.mString) {
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aBuffer.Append(PRUnichar('"'));
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aBuffer.Append(mValue.mString);
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aBuffer.Append(PRUnichar('"'));
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}
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else {
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aBuffer.AppendLiteral("null str");
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}
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}
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else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
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nsAutoString intStr;
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intStr.AppendInt(mValue.mInt, 10);
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aBuffer.Append(intStr);
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aBuffer.AppendLiteral("[0x");
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intStr.Truncate();
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intStr.AppendInt(mValue.mInt, 16);
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aBuffer.Append(intStr);
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aBuffer.Append(PRUnichar(']'));
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}
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else if (eCSSUnit_Color == mUnit) {
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aBuffer.AppendLiteral("(0x");
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nsAutoString intStr;
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intStr.AppendInt(NS_GET_R(mValue.mColor), 16);
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aBuffer.Append(intStr);
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aBuffer.AppendLiteral(" 0x");
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intStr.Truncate();
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intStr.AppendInt(NS_GET_G(mValue.mColor), 16);
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aBuffer.Append(intStr);
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aBuffer.AppendLiteral(" 0x");
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intStr.Truncate();
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intStr.AppendInt(NS_GET_B(mValue.mColor), 16);
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aBuffer.Append(intStr);
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aBuffer.AppendLiteral(" 0x");
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intStr.Truncate();
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intStr.AppendInt(NS_GET_A(mValue.mColor), 16);
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aBuffer.Append(intStr);
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aBuffer.Append(PRUnichar(')'));
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}
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else if (eCSSUnit_Array <= mUnit && mUnit <= eCSSUnit_Counters) {
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for (PRUint16 i = 0, i_end = mValue.mArray->Count(); i != i_end; ++i) {
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(*mValue.mArray)[i].AppendToString(aBuffer, aPropID);
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}
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}
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else if (eCSSUnit_URL == mUnit) {
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aBuffer.Append(mValue.mURL->mString);
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}
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else if (eCSSUnit_Image == mUnit) {
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aBuffer.Append(mValue.mImage->mString);
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}
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else if (eCSSUnit_Percent == mUnit) {
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nsAutoString floatString;
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floatString.AppendFloat(mValue.mFloat * 100.0f);
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aBuffer.Append(floatString);
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}
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else if (eCSSUnit_Percent < mUnit) {
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nsAutoString floatString;
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floatString.AppendFloat(mValue.mFloat);
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aBuffer.Append(floatString);
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}
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switch (mUnit) {
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case eCSSUnit_Null: break;
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case eCSSUnit_Auto: aBuffer.AppendLiteral("auto"); break;
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case eCSSUnit_Inherit: aBuffer.AppendLiteral("inherit"); break;
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case eCSSUnit_Initial: aBuffer.AppendLiteral("-moz-initial"); break;
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case eCSSUnit_None: aBuffer.AppendLiteral("none"); break;
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case eCSSUnit_Normal: aBuffer.AppendLiteral("normal"); break;
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case eCSSUnit_Array:
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|
case eCSSUnit_String: break;
|
|
case eCSSUnit_URL:
|
|
case eCSSUnit_Image:
|
|
case eCSSUnit_Attr:
|
|
case eCSSUnit_Counter:
|
|
case eCSSUnit_Counters: aBuffer.Append(NS_LITERAL_STRING(")")); break;
|
|
case eCSSUnit_Integer: aBuffer.AppendLiteral("int"); break;
|
|
case eCSSUnit_Enumerated: aBuffer.AppendLiteral("enum"); break;
|
|
case eCSSUnit_Color: aBuffer.AppendLiteral("rbga"); break;
|
|
case eCSSUnit_Percent: aBuffer.AppendLiteral("%"); break;
|
|
case eCSSUnit_Number: aBuffer.AppendLiteral("#"); break;
|
|
case eCSSUnit_Inch: aBuffer.AppendLiteral("in"); break;
|
|
case eCSSUnit_Foot: aBuffer.AppendLiteral("ft"); break;
|
|
case eCSSUnit_Mile: aBuffer.AppendLiteral("mi"); break;
|
|
case eCSSUnit_Millimeter: aBuffer.AppendLiteral("mm"); break;
|
|
case eCSSUnit_Centimeter: aBuffer.AppendLiteral("cm"); break;
|
|
case eCSSUnit_Meter: aBuffer.AppendLiteral("m"); break;
|
|
case eCSSUnit_Kilometer: aBuffer.AppendLiteral("km"); break;
|
|
case eCSSUnit_Point: aBuffer.AppendLiteral("pt"); break;
|
|
case eCSSUnit_Pica: aBuffer.AppendLiteral("pc"); break;
|
|
case eCSSUnit_Didot: aBuffer.AppendLiteral("dt"); break;
|
|
case eCSSUnit_Cicero: aBuffer.AppendLiteral("cc"); break;
|
|
case eCSSUnit_EM: aBuffer.AppendLiteral("em"); break;
|
|
case eCSSUnit_EN: aBuffer.AppendLiteral("en"); break;
|
|
case eCSSUnit_XHeight: aBuffer.AppendLiteral("ex"); break;
|
|
case eCSSUnit_CapHeight: aBuffer.AppendLiteral("cap"); break;
|
|
case eCSSUnit_Char: aBuffer.AppendLiteral("ch"); break;
|
|
case eCSSUnit_Pixel: aBuffer.AppendLiteral("px"); break;
|
|
case eCSSUnit_Proportional: aBuffer.AppendLiteral("*"); break;
|
|
case eCSSUnit_Degree: aBuffer.AppendLiteral("deg"); break;
|
|
case eCSSUnit_Grad: aBuffer.AppendLiteral("grad"); break;
|
|
case eCSSUnit_Radian: aBuffer.AppendLiteral("rad"); break;
|
|
case eCSSUnit_Hertz: aBuffer.AppendLiteral("Hz"); break;
|
|
case eCSSUnit_Kilohertz: aBuffer.AppendLiteral("kHz"); break;
|
|
case eCSSUnit_Seconds: aBuffer.AppendLiteral("s"); break;
|
|
case eCSSUnit_Milliseconds: aBuffer.AppendLiteral("ms"); break;
|
|
}
|
|
aBuffer.AppendLiteral(" ");
|
|
}
|
|
|
|
void nsCSSValue::ToString(nsAString& aBuffer,
|
|
nsCSSProperty aPropID) const
|
|
{
|
|
aBuffer.Truncate();
|
|
AppendToString(aBuffer, aPropID);
|
|
}
|
|
|
|
#endif /* defined(DEBUG) */
|