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gecko-dev/layout/style/nsCSSStyleRule.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* David Hyatt <hyatt@netscape.com>
* Daniel Glazman <glazman@netscape.com>
*
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsCSSRule.h"
#include "nsICSSStyleRule.h"
#include "nsICSSGroupRule.h"
#include "nsICSSDeclaration.h"
#include "nsICSSStyleSheet.h"
#include "nsICSSParser.h"
#include "nsICSSLoader.h"
#include "nsIHTMLContentContainer.h"
#include "nsIURL.h"
#include "nsIStyleContext.h"
#include "nsIPresContext.h"
#include "nsIDocument.h"
#include "nsIDeviceContext.h"
#include "nsIArena.h"
#include "nsIAtom.h"
#include "nsCRT.h"
#include "nsString.h"
#include "nsStyleConsts.h"
#include "nsHTMLAtoms.h"
#include "nsUnitConversion.h"
#include "nsStyleUtil.h"
#include "nsIFontMetrics.h"
#include "nsIDOMCSSStyleSheet.h"
#include "nsIDOMCSSRule.h"
#include "nsIDOMCSSStyleRule.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsDOMCSSDeclaration.h"
#include "nsINameSpaceManager.h"
#include "nsINameSpace.h"
#include "nsILookAndFeel.h"
#include "xp_core.h"
#include "nsIRuleNode.h"
#include "nsIStyleSet.h"
#include "nsISizeOfHandler.h"
#include "nsContentUtils.h"
// #define DEBUG_REFS
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kCSSFontSID, NS_CSS_FONT_SID);
static NS_DEFINE_IID(kCSSColorSID, NS_CSS_COLOR_SID);
static NS_DEFINE_IID(kCSSTextSID, NS_CSS_TEXT_SID);
static NS_DEFINE_IID(kCSSMarginSID, NS_CSS_MARGIN_SID);
static NS_DEFINE_IID(kCSSPositionSID, NS_CSS_POSITION_SID);
static NS_DEFINE_IID(kCSSListSID, NS_CSS_LIST_SID);
static NS_DEFINE_IID(kCSSDisplaySID, NS_CSS_DISPLAY_SID);
static NS_DEFINE_IID(kCSSTableSID, NS_CSS_TABLE_SID);
static NS_DEFINE_IID(kCSSContentSID, NS_CSS_CONTENT_SID);
static NS_DEFINE_IID(kCSSUserInterfaceSID, NS_CSS_USER_INTERFACE_SID);
static NS_DEFINE_IID(kCSSBreaksSID, NS_CSS_BREAKS_SID);
static NS_DEFINE_IID(kCSSPageSID, NS_CSS_PAGE_SID);
#ifdef INCLUDE_XUL
static NS_DEFINE_IID(kCSSXULSID, NS_CSS_XUL_SID);
#endif
// -- nsCSSSelector -------------------------------
#define NS_IF_COPY(dest,source,type) \
if (nsnull != source) dest = new type(*(source))
#define NS_IF_DELETE(ptr) \
if (nsnull != ptr) { delete ptr; ptr = nsnull; }
#define NS_IF_NEGATED_START(bool,str) \
if (bool) { str.Append(NS_LITERAL_STRING(":not(")); }
#define NS_IF_NEGATED_END(bool,str) \
if (bool) { str.Append(PRUnichar(')')); }
MOZ_DECL_CTOR_COUNTER(nsAtomList)
nsAtomList::nsAtomList(nsIAtom* aAtom)
: mAtom(aAtom),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAtomList);
NS_IF_ADDREF(mAtom);
}
nsAtomList::nsAtomList(const nsString& aAtomValue)
: mAtom(nsnull),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAtomList);
mAtom = NS_NewAtom(aAtomValue);
}
nsAtomList::nsAtomList(const nsAtomList& aCopy)
: mAtom(aCopy.mAtom),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAtomList);
NS_IF_ADDREF(mAtom);
NS_IF_COPY(mNext, aCopy.mNext, nsAtomList);
}
nsAtomList::~nsAtomList(void)
{
MOZ_COUNT_DTOR(nsAtomList);
NS_IF_RELEASE(mAtom);
NS_IF_DELETE(mNext);
}
PRBool nsAtomList::Equals(const nsAtomList* aOther) const
{
if (this == aOther) {
return PR_TRUE;
}
if (nsnull != aOther) {
if (mAtom == aOther->mAtom) {
if (nsnull != mNext) {
return mNext->Equals(aOther->mNext);
}
return PRBool(nsnull == aOther->mNext);
}
}
return PR_FALSE;
}
MOZ_DECL_CTOR_COUNTER(nsAttrSelector)
#ifdef DEBUG_REFS
PRUint32 gAttrSelectorCount=0;
#endif
nsAttrSelector::nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr)
: mNameSpace(aNameSpace),
mAttr(nsnull),
mFunction(NS_ATTR_FUNC_SET),
mCaseSensitive(1),
mValue(),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAttrSelector);
#ifdef DEBUG_REFS
gAttrSelectorCount++;
printf( "nsAttrSelector Instances (ctor): %ld\n", (long)gAttrSelectorCount);
#endif
mAttr = NS_NewAtom(aAttr);
}
nsAttrSelector::nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunction,
const nsString& aValue, PRBool aCaseSensitive)
: mNameSpace(aNameSpace),
mAttr(nsnull),
mFunction(aFunction),
mCaseSensitive(aCaseSensitive),
mValue(aValue),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAttrSelector);
#ifdef DEBUG_REFS
gAttrSelectorCount++;
printf( "nsAttrSelector Instances (ctor): %ld\n", (long)gAttrSelectorCount);
#endif
mAttr = NS_NewAtom(aAttr);
}
nsAttrSelector::nsAttrSelector(const nsAttrSelector& aCopy)
: mNameSpace(aCopy.mNameSpace),
mAttr(aCopy.mAttr),
mFunction(aCopy.mFunction),
mCaseSensitive(aCopy.mCaseSensitive),
mValue(aCopy.mValue),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsAttrSelector);
#ifdef DEBUG_REFS
gAttrSelectorCount++;
printf( "nsAttrSelector Instances (cp-ctor): %ld\n", (long)gAttrSelectorCount);
#endif
NS_IF_ADDREF(mAttr);
NS_IF_COPY(mNext, aCopy.mNext, nsAttrSelector);
}
nsAttrSelector::~nsAttrSelector(void)
{
MOZ_COUNT_DTOR(nsAttrSelector);
#ifdef DEBUG_REFS
gAttrSelectorCount--;
printf( "nsAttrSelector Instances (dtor): %ld\n", (long)gAttrSelectorCount);
#endif
NS_IF_RELEASE(mAttr);
NS_IF_DELETE(mNext);
}
PRBool nsAttrSelector::Equals(const nsAttrSelector* aOther) const
{
if (this == aOther) {
return PR_TRUE;
}
if (nsnull != aOther) {
if ((mNameSpace == aOther->mNameSpace) &&
(mAttr == aOther->mAttr) &&
(mFunction == aOther->mFunction) &&
(mCaseSensitive == aOther->mCaseSensitive) &&
mValue.Equals(aOther->mValue)) {
if (nsnull != mNext) {
return mNext->Equals(aOther->mNext);
}
return PRBool(nsnull == aOther->mNext);
}
}
return PR_FALSE;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as nsAttrSelector's size):
* 1) sizeof(*this) + the size of mAttr atom (if it exists and is unique)
*
* Contained / Aggregated data (not reported as nsAttrSelector's size):
* none
*
* Children / siblings / parents:
* 1) Recurses to the mMext instance which is reported as a seperate instance
*
******************************************************************************/
void nsAttrSelector::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("nsAttrSelector"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// add in the mAttr atom
if (mAttr && uniqueItems->AddItem(mAttr)){
mAttr->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
aSizeOfHandler->AddSize(tag,aSize);
// recurse to the next one...
if(mNext){
mNext->SizeOf(aSizeOfHandler, localSize);
}
}
MOZ_DECL_CTOR_COUNTER(nsCSSSelector)
#ifdef DEBUG_REFS
PRUint32 gSelectorCount=0;
#endif
nsCSSSelector::nsCSSSelector(void)
: mNameSpace(kNameSpaceID_Unknown), mTag(nsnull),
mIDList(nsnull),
mClassList(nsnull),
mPseudoClassList(nsnull),
mAttrList(nsnull),
mOperator(0),
mNegations(nsnull),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsCSSSelector);
#ifdef DEBUG_REFS
gSelectorCount++;
printf( "nsCSSSelector Instances (ctor): %ld\n", (long)gSelectorCount);
#endif
}
nsCSSSelector::nsCSSSelector(const nsCSSSelector& aCopy)
: mNameSpace(aCopy.mNameSpace), mTag(aCopy.mTag),
mIDList(nsnull),
mClassList(nsnull),
mPseudoClassList(nsnull),
mAttrList(nsnull),
mOperator(aCopy.mOperator),
mNegations(nsnull),
mNext(nsnull)
{
MOZ_COUNT_CTOR(nsCSSSelector);
NS_IF_ADDREF(mTag);
NS_IF_COPY(mIDList, aCopy.mIDList, nsAtomList);
NS_IF_COPY(mClassList, aCopy.mClassList, nsAtomList);
NS_IF_COPY(mPseudoClassList, aCopy.mPseudoClassList, nsAtomList);
NS_IF_COPY(mAttrList, aCopy.mAttrList, nsAttrSelector);
NS_IF_COPY(mNegations, aCopy.mNegations, nsCSSSelector);
#ifdef DEBUG_REFS
gSelectorCount++;
printf( "nsCSSSelector Instances (cp-ctor): %ld\n", (long)gSelectorCount);
#endif
}
nsCSSSelector::~nsCSSSelector(void)
{
MOZ_COUNT_DTOR(nsCSSSelector);
Reset();
#ifdef DEBUG_REFS
gSelectorCount--;
printf( "nsCSSSelector Instances (dtor): %ld\n", (long)gSelectorCount);
#endif
}
nsCSSSelector& nsCSSSelector::operator=(const nsCSSSelector& aCopy)
{
NS_IF_RELEASE(mTag);
NS_IF_DELETE(mIDList);
NS_IF_DELETE(mClassList);
NS_IF_DELETE(mPseudoClassList);
NS_IF_DELETE(mAttrList);
NS_IF_DELETE(mNegations);
mNameSpace = aCopy.mNameSpace;
mTag = aCopy.mTag;
NS_IF_COPY(mIDList, aCopy.mIDList, nsAtomList);
NS_IF_COPY(mClassList, aCopy.mClassList, nsAtomList);
NS_IF_COPY(mPseudoClassList, aCopy.mPseudoClassList, nsAtomList);
NS_IF_COPY(mAttrList, aCopy.mAttrList, nsAttrSelector);
mOperator = aCopy.mOperator;
NS_IF_COPY(mNegations, aCopy.mNegations, nsCSSSelector);
NS_IF_ADDREF(mTag);
return *this;
}
PRBool nsCSSSelector::Equals(const nsCSSSelector* aOther) const
{
if (this == aOther) {
return PR_TRUE;
}
if (nsnull != aOther) {
if ((aOther->mNameSpace == mNameSpace) &&
(aOther->mTag == mTag) &&
(aOther->mOperator == mOperator)) {
if (nsnull != mIDList) {
if (PR_FALSE == mIDList->Equals(aOther->mIDList)) {
return PR_FALSE;
}
}
else {
if (nsnull != aOther->mIDList) {
return PR_FALSE;
}
}
if (nsnull != mClassList) {
if (PR_FALSE == mClassList->Equals(aOther->mClassList)) {
return PR_FALSE;
}
}
else {
if (nsnull != aOther->mClassList) {
return PR_FALSE;
}
}
if (nsnull != mPseudoClassList) {
if (PR_FALSE == mPseudoClassList->Equals(aOther->mPseudoClassList)) {
return PR_FALSE;
}
}
else {
if (nsnull != aOther->mPseudoClassList) {
return PR_FALSE;
}
}
if (nsnull != mAttrList) {
if (PR_FALSE == mAttrList->Equals(aOther->mAttrList)) {
return PR_FALSE;
}
}
else {
if (nsnull != aOther->mAttrList) {
return PR_FALSE;
}
}
if (nsnull != mNegations) {
if (PR_FALSE == mNegations->Equals(aOther->mNegations)) {
return PR_FALSE;
}
}
return PR_TRUE;
}
}
return PR_FALSE;
}
void nsCSSSelector::Reset(void)
{
mNameSpace = kNameSpaceID_Unknown;
NS_IF_RELEASE(mTag);
NS_IF_DELETE(mIDList);
NS_IF_DELETE(mClassList);
NS_IF_DELETE(mPseudoClassList);
NS_IF_DELETE(mAttrList);
NS_IF_DELETE(mNegations);
mOperator = PRUnichar(0);
}
void nsCSSSelector::SetNameSpace(PRInt32 aNameSpace)
{
mNameSpace = aNameSpace;
}
void nsCSSSelector::SetTag(const nsString& aTag)
{
NS_IF_RELEASE(mTag);
if (0 < aTag.Length()) {
mTag = NS_NewAtom(aTag);
}
}
void nsCSSSelector::AddID(const nsString& aID)
{
if (0 < aID.Length()) {
nsAtomList** list = &mIDList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAtomList(aID);
}
}
void nsCSSSelector::AddClass(const nsString& aClass)
{
if (0 < aClass.Length()) {
nsAtomList** list = &mClassList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAtomList(aClass);
}
}
void nsCSSSelector::AddPseudoClass(const nsString& aPseudoClass)
{
if (0 < aPseudoClass.Length()) {
nsAtomList** list = &mPseudoClassList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAtomList(aPseudoClass);
}
}
void nsCSSSelector::AddPseudoClass(nsIAtom* aPseudoClass)
{
if (nsnull != aPseudoClass) {
nsAtomList** list = &mPseudoClassList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAtomList(aPseudoClass);
}
}
void nsCSSSelector::AddAttribute(PRInt32 aNameSpace, const nsString& aAttr)
{
if (0 < aAttr.Length()) {
nsAttrSelector** list = &mAttrList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAttrSelector(aNameSpace, aAttr);
}
}
void nsCSSSelector::AddAttribute(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunc,
const nsString& aValue, PRBool aCaseSensitive)
{
if (0 < aAttr.Length()) {
nsAttrSelector** list = &mAttrList;
while (nsnull != *list) {
list = &((*list)->mNext);
}
*list = new nsAttrSelector(aNameSpace, aAttr, aFunc, aValue, aCaseSensitive);
}
}
void nsCSSSelector::SetOperator(PRUnichar aOperator)
{
mOperator = aOperator;
}
PRInt32 nsCSSSelector::CalcWeight(void) const
{
PRInt32 weight = 0;
if (nsnull != mTag) {
weight += 0x000001;
}
nsAtomList* list = mIDList;
while (nsnull != list) {
weight += 0x010000;
list = list->mNext;
}
list = mClassList;
while (nsnull != list) {
weight += 0x000100;
list = list->mNext;
}
list = mPseudoClassList;
while (nsnull != list) {
weight += 0x000100;
list = list->mNext;
}
nsAttrSelector* attr = mAttrList;
while (nsnull != attr) {
weight += 0x000100;
attr = attr->mNext;
}
if (nsnull != mNegations) {
weight += mNegations->CalcWeight();
}
return weight;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as nsCSSSelector's size):
* 1) sizeof(*this) + the size of the mTag
* + the size of the mIDList unique items
* + the size of the mClassList and mPseudoClassList unique items
*
* Contained / Aggregated data (not reported as nsCSSSelector's size):
* 1) AttributeList is called out to seperately if it exists
*
* Children / siblings / parents:
* 1) Recurses to mNext which is counted as it's own instance
*
******************************************************************************/
void nsCSSSelector::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("nsCSSSelector"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// now get the member-atoms and add them in
if(mTag && uniqueItems->AddItem(mTag)){
localSize = 0;
mTag->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
// XXX ????
// a couple of simple atom lists
if(mIDList && uniqueItems->AddItem(mIDList)){
aSize += sizeof(*mIDList);
nsAtomList *pNext = nsnull;
pNext = mIDList;
while(pNext){
if(pNext->mAtom && uniqueItems->AddItem(pNext->mAtom)){
localSize = 0;
pNext->mAtom->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
pNext = pNext->mNext;
}
}
if(mClassList && uniqueItems->AddItem(mClassList)){
aSize += sizeof(*mClassList);
nsAtomList *pNext = nsnull;
pNext = mClassList;
while(pNext){
if(pNext->mAtom && uniqueItems->AddItem(pNext->mAtom)){
localSize = 0;
pNext->mAtom->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
pNext = pNext->mNext;
}
}
if(mPseudoClassList && uniqueItems->AddItem(mPseudoClassList)){
nsAtomList *pNext = nsnull;
pNext = mPseudoClassList;
while(pNext){
if(pNext->mAtom && uniqueItems->AddItem(pNext->mAtom)){
localSize = 0;
pNext->mAtom->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
pNext = pNext->mNext;
}
}
// done with undelegated sizes
aSizeOfHandler->AddSize(tag, aSize);
// the AttributeList gets its own delegation-call
if(mAttrList){
localSize = 0;
mAttrList->SizeOf(aSizeOfHandler, localSize);
}
// don't forget the negated selectors
if(mNegations) {
localSize = 0;
mNegations->SizeOf(aSizeOfHandler, localSize);
}
// finally chain to the next...
if(mNext){
localSize = 0;
mNext->SizeOf(aSizeOfHandler, localSize);
}
}
// pseudo-elements are stored in the selectors' chain using fictional elements;
// these fictional elements have mTag starting with a colon
static PRBool IsPseudoElement(nsIAtom* aAtom)
{
if (aAtom) {
const PRUnichar *str;
aAtom->GetUnicode(&str);
return str && (*str == ':');
}
return PR_FALSE;
}
void nsCSSSelector::AppendNegationToString(nsAWritableString& aString)
{
aString.Append(NS_LITERAL_STRING(":not("));
}
//
// Builds the textual representation of a selector. Called by DOM 2 CSS
// StyleRule:selectorText
//
nsresult nsCSSSelector::ToString( nsAWritableString& aString, nsICSSStyleSheet* aSheet, PRBool aIsPseudoElem,
PRInt8 aNegatedIndex) const
{
const PRUnichar* temp;
PRBool aIsNegated = PRBool(0 < aNegatedIndex);
// selectors are linked from right-to-left, so the next selector in the linked list
// actually precedes this one in the resulting string
if (mNext) {
mNext->ToString(aString, aSheet, IsPseudoElement(mTag), PR_FALSE);
if (!aIsNegated && !IsPseudoElement(mTag)) {
// don't add a leading whitespace if we have a pseudo-element
// or a negated simple selector
aString.Append(PRUnichar(' '));
}
}
if (1 < aNegatedIndex) {
// the first mNegations does not contain a negated type element selector
// or a negated universal selector
NS_IF_NEGATED_START(aIsNegated, aString)
}
// append the namespace prefix
if (mNameSpace > 0) {
nsCOMPtr<nsINameSpace> sheetNS;
aSheet->GetNameSpace(*getter_AddRefs(sheetNS));
nsCOMPtr<nsIAtom> prefixAtom;
// will return null if namespace was the default
sheetNS->FindNameSpacePrefix(mNameSpace, *getter_AddRefs(prefixAtom));
if (prefixAtom) {
const PRUnichar* prefix;
prefixAtom->GetUnicode(&prefix);
aString.Append(prefix);
aString.Append(PRUnichar('|'));
}
}
// smells like a universal selector
if (!mTag && !mIDList && !mClassList) {
if (1 != aNegatedIndex) {
aString.Append(PRUnichar('*'));
}
if (1 < aNegatedIndex) {
NS_IF_NEGATED_END(aIsNegated, aString)
}
} else {
// Append the tag name, if there is one
if (mTag) {
mTag->GetUnicode(&temp);
aString.Append(temp);
NS_IF_NEGATED_END(aIsNegated, aString)
}
// Append the id, if there is one
if (mIDList) {
nsAtomList* list = mIDList;
while (list != nsnull) {
list->mAtom->GetUnicode(&temp);
NS_IF_NEGATED_START(aIsNegated, aString)
aString.Append(PRUnichar('#'));
aString.Append(temp);
NS_IF_NEGATED_END(aIsNegated, aString)
list = list->mNext;
}
}
// Append each class in the linked list
if (mClassList) {
nsAtomList* list = mClassList;
while (list != nsnull) {
list->mAtom->GetUnicode(&temp);
NS_IF_NEGATED_START(aIsNegated, aString)
aString.Append(PRUnichar('.'));
aString.Append(temp);
NS_IF_NEGATED_END(aIsNegated, aString)
list = list->mNext;
}
}
}
// Append each attribute selector in the linked list
if (mAttrList) {
nsAttrSelector* list = mAttrList;
while (list != nsnull) {
NS_IF_NEGATED_START(aIsNegated, aString)
aString.Append(PRUnichar('['));
// Append the namespace prefix
if (list->mNameSpace > 0) {
nsCOMPtr<nsINameSpace> sheetNS;
aSheet->GetNameSpace(*getter_AddRefs(sheetNS));
nsCOMPtr<nsIAtom> prefixAtom;
// will return null if namespace was the default
sheetNS->FindNameSpacePrefix(list->mNameSpace, *getter_AddRefs(prefixAtom));
if (prefixAtom) {
const PRUnichar* prefix;
prefixAtom->GetUnicode(&prefix);
aString.Append(prefix);
aString.Append(PRUnichar('|'));
}
}
// Append the attribute name
list->mAttr->GetUnicode(&temp);
aString.Append(temp);
// Append the function
if (list->mFunction == NS_ATTR_FUNC_EQUALS) {
aString.Append(PRUnichar('='));
} else if (list->mFunction == NS_ATTR_FUNC_INCLUDES) {
aString.Append(PRUnichar('~'));
aString.Append(PRUnichar('='));
} else if (list->mFunction == NS_ATTR_FUNC_DASHMATCH) {
aString.Append(PRUnichar('|'));
aString.Append(PRUnichar('='));
} else if (list->mFunction == NS_ATTR_FUNC_BEGINSMATCH) {
aString.Append(PRUnichar('^'));
aString.Append(PRUnichar('='));
} else if (list->mFunction == NS_ATTR_FUNC_ENDSMATCH) {
aString.Append(PRUnichar('$'));
aString.Append(PRUnichar('='));
} else if (list->mFunction == NS_ATTR_FUNC_CONTAINSMATCH) {
aString.Append(PRUnichar('*'));
aString.Append(PRUnichar('='));
}
// Append the value
aString.Append(list->mValue);
aString.Append(PRUnichar(']'));
NS_IF_NEGATED_END(aIsNegated, aString)
list = list->mNext;
}
}
// Append each pseudo-class in the linked list
if (mPseudoClassList) {
nsAtomList* list = mPseudoClassList;
while (list != nsnull) {
list->mAtom->GetUnicode(&temp);
NS_IF_NEGATED_START(aIsNegated, aString)
aString.Append(temp);
NS_IF_NEGATED_END(aIsNegated, aString)
list = list->mNext;
}
}
if (mNegations) {
// chain all the negated selectors
mNegations->ToString(aString, aSheet, PR_FALSE, aNegatedIndex + 1);
}
// Append the operator only if the selector is not negated and is not
// a pseudo-element
if (!aIsNegated && mOperator && !aIsPseudoElem) {
aString.Append(PRUnichar(' '));
aString.Append(mOperator);
}
return NS_OK;
}
// -- CSSImportantRule -------------------------------
static nscoord CalcLength(const nsCSSValue& aValue, const nsFont& aFont,
nsIPresContext* aPresContext);
static PRBool SetCoord(const nsCSSValue& aValue, nsStyleCoord& aCoord,
const nsStyleCoord& aParentCoord,
PRInt32 aMask, const nsFont& aFont,
nsIPresContext* aPresContext);
// New map helpers shared by both important and regular rules.
static nsresult MapFontForDeclaration(nsICSSDeclaration* aDecl, nsCSSFont& aFont);
static nsresult MapDisplayForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSDisplay& aDisplay);
static nsresult MapColorForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSColor& aColor);
static nsresult MapMarginForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSMargin& aMargin);
static nsresult MapListForDeclaration(nsICSSDeclaration* aDecl, nsCSSList& aList);
static nsresult MapPositionForDeclaration(nsICSSDeclaration* aDecl, nsCSSPosition& aPosition);
static nsresult MapTableForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSTable& aTable);
static nsresult MapContentForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSContent& aContent);
static nsresult MapTextForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSText& aContent);
static nsresult MapUIForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSUserInterface& aContent);
#ifdef INCLUDE_XUL
static nsresult MapXULForDeclaration(nsICSSDeclaration* aDecl, nsCSSXUL& aXUL);
#endif
class CSSStyleRuleImpl;
class CSSImportantRule : public nsIStyleRule {
public:
CSSImportantRule(nsICSSStyleSheet* aSheet, nsICSSDeclaration* aDeclaration);
NS_DECL_ISUPPORTS
// NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const;
// NS_IMETHOD HashValue(PRUint32& aValue) const;
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
// Strength is an out-of-band weighting, useful for mapping CSS ! important
NS_IMETHOD GetStrength(PRInt32& aStrength) const;
// The new mapping function.
NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
protected:
virtual ~CSSImportantRule(void);
nsICSSDeclaration* mDeclaration;
nsICSSStyleSheet* mSheet;
friend class CSSStyleRuleImpl;
};
CSSImportantRule::CSSImportantRule(nsICSSStyleSheet* aSheet, nsICSSDeclaration* aDeclaration)
: mDeclaration(aDeclaration),
mSheet(aSheet)
{
NS_INIT_REFCNT();
NS_IF_ADDREF(mDeclaration);
}
CSSImportantRule::~CSSImportantRule(void)
{
NS_IF_RELEASE(mDeclaration);
}
NS_IMPL_ISUPPORTS1(CSSImportantRule, nsIStyleRule)
#if 0
NS_IMETHODIMP
CSSImportantRule::Equals(const nsIStyleRule* aRule, PRBool& aResult) const
{
aResult = PRBool(aRule == this);
return NS_OK;
}
NS_IMETHODIMP
CSSImportantRule::HashValue(PRUint32& aValue) const
{
aValue = PRUint32(mDeclaration);
return NS_OK;
}
#endif
NS_IMETHODIMP
CSSImportantRule::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
NS_IF_ADDREF(mSheet);
aSheet = mSheet;
return NS_OK;
}
// Strength is an out-of-band weighting, useful for mapping CSS ! important
NS_IMETHODIMP
CSSImportantRule::GetStrength(PRInt32& aStrength) const
{
aStrength = 1;
return NS_OK;
}
NS_IMETHODIMP
CSSImportantRule::MapRuleInfoInto(nsRuleData* aRuleData)
{
if (!aRuleData)
return NS_OK;
if (aRuleData->mFontData)
return MapFontForDeclaration(mDeclaration, *aRuleData->mFontData);
else if (aRuleData->mDisplayData)
return MapDisplayForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mDisplayData);
else if (aRuleData->mColorData)
return MapColorForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mColorData);
else if (aRuleData->mMarginData)
return MapMarginForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mMarginData);
else if (aRuleData->mListData)
return MapListForDeclaration(mDeclaration, *aRuleData->mListData);
else if (aRuleData->mPositionData)
return MapPositionForDeclaration(mDeclaration, *aRuleData->mPositionData);
else if (aRuleData->mTableData)
return MapTableForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mTableData);
else if (aRuleData->mContentData)
return MapContentForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mContentData);
else if (aRuleData->mTextData)
return MapTextForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mTextData);
else if (aRuleData->mUIData)
return MapUIForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mUIData);
#ifdef INCLUDE_XUL
else if (aRuleData->mXULData)
return MapXULForDeclaration(mDeclaration, *aRuleData->mXULData);
#endif
return NS_OK;
}
NS_IMETHODIMP
CSSImportantRule::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
fputs("! Important rule ", out);
if (nsnull != mDeclaration) {
mDeclaration->List(out);
}
else {
fputs("{ null declaration }", out);
}
fputs("\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSImportantRule's size):
* 1) sizeof(*this)
*
* Contained / Aggregated data (not reported as CSSImportantRule's size):
* 1) mDeclaration is sized seperately
* 2) mSheet is sized seperately
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSImportantRule::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSImportantRule"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(CSSImportantRule);
aSizeOfHandler->AddSize(tag,aSize);
// now dump the mDeclaration and mSheet
if(mDeclaration){
mDeclaration->SizeOf(aSizeOfHandler, localSize);
}
if(mSheet){
mSheet->SizeOf(aSizeOfHandler, localSize);
}
}
// -- nsDOMStyleRuleDeclaration -------------------------------
class DOMCSSDeclarationImpl : public nsDOMCSSDeclaration
{
public:
DOMCSSDeclarationImpl(nsICSSStyleRule *aRule);
~DOMCSSDeclarationImpl(void);
NS_IMETHOD RemoveProperty(const nsAReadableString& aPropertyName,
nsAWritableString& aReturn);
virtual void DropReference(void);
virtual nsresult GetCSSDeclaration(nsICSSDeclaration **aDecl,
PRBool aAllocate);
virtual nsresult SetCSSDeclaration(nsICSSDeclaration *aDecl);
virtual nsresult ParsePropertyValue(const nsAReadableString& aPropName,
const nsAReadableString& aPropValue);
virtual nsresult ParseDeclaration(const nsAReadableString& aDecl,
PRBool aParseOnlyOneDecl,
PRBool aClearOldDecl);
virtual nsresult GetParent(nsISupports **aParent);
protected:
nsICSSStyleRule *mRule;
};
MOZ_DECL_CTOR_COUNTER(DOMCSSDeclarationImpl)
DOMCSSDeclarationImpl::DOMCSSDeclarationImpl(nsICSSStyleRule *aRule)
{
MOZ_COUNT_CTOR(DOMCSSDeclarationImpl);
// This reference is not reference-counted. The rule
// object tells us when its about to go away.
mRule = aRule;
}
DOMCSSDeclarationImpl::~DOMCSSDeclarationImpl(void)
{
MOZ_COUNT_DTOR(DOMCSSDeclarationImpl);
}
NS_IMETHODIMP
DOMCSSDeclarationImpl::RemoveProperty(const nsAReadableString& aPropertyName,
nsAWritableString& aReturn)
{
aReturn.Truncate();
nsCOMPtr<nsICSSDeclaration> decl;
nsresult rv = GetCSSDeclaration(getter_AddRefs(decl), PR_TRUE);
if (NS_SUCCEEDED(rv) && decl) {
nsCSSProperty prop = nsCSSProps::LookupProperty(aPropertyName);
nsCSSValue val;
rv = decl->RemoveProperty(prop, val);
if (NS_SUCCEEDED(rv)) {
// We pass in eCSSProperty_UNKNOWN here so that we don't get the
// property name in the return string.
val.ToString(aReturn, eCSSProperty_UNKNOWN);
} else {
// If we tried to remove an invalid property or a property that wasn't
// set we simply return success and an empty string
rv = NS_OK;
}
}
return rv;
}
void
DOMCSSDeclarationImpl::DropReference(void)
{
mRule = nsnull;
}
nsresult
DOMCSSDeclarationImpl::GetCSSDeclaration(nsICSSDeclaration **aDecl,
PRBool aAllocate)
{
if (nsnull != mRule) {
*aDecl = mRule->GetDeclaration();
}
else {
*aDecl = nsnull;
}
return NS_OK;
}
nsresult
DOMCSSDeclarationImpl::SetCSSDeclaration(nsICSSDeclaration *aDecl)
{
if (nsnull != mRule) {
mRule->SetDeclaration(aDecl);
}
return NS_OK;
}
nsresult
DOMCSSDeclarationImpl::ParsePropertyValue(const nsAReadableString& aPropName,
const nsAReadableString& aPropValue)
{
nsCOMPtr<nsICSSDeclaration> decl;
nsresult result = GetCSSDeclaration(getter_AddRefs(decl), PR_TRUE);
if (!decl) {
return result;
}
nsCOMPtr<nsICSSLoader> cssLoader;
nsCOMPtr<nsICSSParser> cssParser;
nsCOMPtr<nsIURI> baseURI;
nsCOMPtr<nsICSSStyleSheet> cssSheet;
nsCOMPtr<nsIDocument> owningDoc;
nsCOMPtr<nsIStyleSheet> sheet;
if (mRule) {
mRule->GetStyleSheet(*getter_AddRefs(sheet));
if (sheet) {
sheet->GetURL(*getter_AddRefs(baseURI));
sheet->GetOwningDocument(*getter_AddRefs(owningDoc));
cssSheet = do_QueryInterface(sheet);
if (owningDoc) {
nsCOMPtr<nsIHTMLContentContainer> htmlContainer(do_QueryInterface(owningDoc));
if (htmlContainer) {
htmlContainer->GetCSSLoader(*getter_AddRefs(cssLoader));
}
}
}
}
if (cssLoader) {
result = cssLoader->GetParserFor(nsnull, getter_AddRefs(cssParser));
}
else {
result = NS_NewCSSParser(getter_AddRefs(cssParser));
}
if (NS_FAILED(result)) {
return result;
}
PRInt32 hint;
if (owningDoc) {
owningDoc->BeginUpdate();
}
result = cssParser->ParseProperty(aPropName, aPropValue, baseURI, decl, &hint);
if (NS_SUCCEEDED(result)) {
if (cssSheet) {
cssSheet->SetModified(PR_TRUE);
}
if (owningDoc) {
owningDoc->StyleRuleChanged(cssSheet, mRule, hint);
owningDoc->EndUpdate();
}
}
if (cssLoader) {
cssLoader->RecycleParser(cssParser);
}
return result;
}
nsresult
DOMCSSDeclarationImpl::ParseDeclaration(const nsAReadableString& aDecl,
PRBool aParseOnlyOneDecl,
PRBool aClearOldDecl)
{
nsCOMPtr<nsICSSDeclaration> decl;
nsresult result = GetCSSDeclaration(getter_AddRefs(decl), PR_TRUE);
if (decl) {
nsCOMPtr<nsICSSLoader> cssLoader;
nsCOMPtr<nsICSSParser> cssParser;
nsCOMPtr<nsIURI> baseURI;
nsCOMPtr<nsICSSStyleSheet> cssSheet;
nsCOMPtr<nsIDocument> owningDoc;
nsCOMPtr<nsIStyleSheet> sheet;
if (mRule) {
mRule->GetStyleSheet(*getter_AddRefs(sheet));
if (sheet) {
sheet->GetURL(*getter_AddRefs(baseURI));
sheet->GetOwningDocument(*getter_AddRefs(owningDoc));
cssSheet = do_QueryInterface(sheet);
if (owningDoc) {
nsCOMPtr<nsIHTMLContentContainer> htmlContainer(do_QueryInterface(owningDoc));
if (htmlContainer) {
htmlContainer->GetCSSLoader(*getter_AddRefs(cssLoader));
}
}
}
}
if (cssLoader) {
result = cssLoader->GetParserFor(nsnull, getter_AddRefs(cssParser));
}
else {
result = NS_NewCSSParser(getter_AddRefs(cssParser));
}
if (NS_SUCCEEDED(result)) {
nsCOMPtr<nsICSSDeclaration> declClone;
decl->Clone(*getter_AddRefs(declClone));
NS_ENSURE_TRUE(declClone, NS_ERROR_OUT_OF_MEMORY);
if (aClearOldDecl) {
// This should be done with decl->Clear() once such a method exists.
nsAutoString propName;
PRUint32 count, i;
decl->Count(&count);
for (i = 0; i < count; i++) {
decl->GetNthProperty(0, propName);
nsCSSProperty prop = nsCSSProps::LookupProperty(propName);
nsCSSValue val;
decl->RemoveProperty(prop, val);
}
}
PRInt32 hint;
result = cssParser->ParseAndAppendDeclaration(aDecl, baseURI, decl,
aParseOnlyOneDecl, &hint);
if (result == NS_CSS_PARSER_DROP_DECLARATION) {
SetCSSDeclaration(declClone);
result = NS_OK;
} else if (NS_SUCCEEDED(result)) {
if (cssSheet) {
cssSheet->SetModified(PR_TRUE);
}
if (owningDoc) {
owningDoc->StyleRuleChanged(cssSheet, mRule, hint);
}
}
if (cssLoader) {
cssLoader->RecycleParser(cssParser);
}
}
}
return result;
}
nsresult
DOMCSSDeclarationImpl::GetParent(nsISupports **aParent)
{
if (nsnull != mRule) {
return mRule->QueryInterface(kISupportsIID, (void **)aParent);
} else {
NS_ENSURE_ARG_POINTER(aParent);
*aParent = nsnull;
}
return NS_OK;
}
// -- nsCSSStyleRule -------------------------------
class CSSStyleRuleImpl : public nsCSSRule,
public nsICSSStyleRule,
public nsIDOMCSSStyleRule
{
public:
CSSStyleRuleImpl(const nsCSSSelector& aSelector);
CSSStyleRuleImpl(const CSSStyleRuleImpl& aCopy);
NS_DECL_ISUPPORTS_INHERITED
// NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const;
// NS_IMETHOD HashValue(PRUint32& aValue) const;
// Strength is an out-of-band weighting, useful for mapping CSS ! important
NS_IMETHOD GetStrength(PRInt32& aStrength) const;
virtual nsCSSSelector* FirstSelector(void);
virtual void AddSelector(const nsCSSSelector& aSelector);
virtual void DeleteSelector(nsCSSSelector* aSelector);
virtual void SetSourceSelectorText(const nsString& aSelectorText);
virtual void GetSourceSelectorText(nsString& aSelectorText) const;
virtual PRUint32 GetLineNumber(void) const;
virtual void SetLineNumber(PRUint32 aLineNumber);
virtual nsICSSDeclaration* GetDeclaration(void) const;
virtual void SetDeclaration(nsICSSDeclaration* aDeclaration);
virtual PRInt32 GetWeight(void) const;
virtual void SetWeight(PRInt32 aWeight);
virtual nsIStyleRule* GetImportantRule(void);
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet);
NS_IMETHOD SetParentRule(nsICSSGroupRule* aRule);
NS_IMETHOD GetType(PRInt32& aType) const;
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
// The new mapping function.
NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSStyleRule interface
NS_DECL_NSIDOMCSSSTYLERULE
private:
// These are not supported and are not implemented!
CSSStyleRuleImpl& operator=(const CSSStyleRuleImpl& aCopy);
protected:
virtual ~CSSStyleRuleImpl(void);
protected:
nsCSSSelector mSelector;
nsICSSDeclaration* mDeclaration;
PRInt32 mWeight;
CSSImportantRule* mImportantRule;
DOMCSSDeclarationImpl* mDOMDeclaration;
PRUint32 mLineNumber;
};
#ifdef DEBUG_REFS
PRUint32 gStyleRuleCount=0;
#endif
CSSStyleRuleImpl::CSSStyleRuleImpl(const nsCSSSelector& aSelector)
: nsCSSRule(),
mSelector(aSelector), mDeclaration(nsnull),
mWeight(0), mImportantRule(nsnull),
mDOMDeclaration(nsnull)
{
#ifdef DEBUG_REFS
gStyleRuleCount++;
printf( "CSSStyleRuleImpl Instances (ctor): %ld\n", (long)gStyleRuleCount);
#endif
}
CSSStyleRuleImpl::CSSStyleRuleImpl(const CSSStyleRuleImpl& aCopy)
: nsCSSRule(aCopy),
mSelector(aCopy.mSelector),
mDeclaration(nsnull),
mWeight(aCopy.mWeight),
mImportantRule(nsnull),
mDOMDeclaration(nsnull)
{
#ifdef DEBUG_REFS
gStyleRuleCount++;
printf( "CSSStyleRuleImpl Instances (cp-ctor): %ld\n", (long)gStyleRuleCount);
#endif
nsCSSSelector* copySel = aCopy.mSelector.mNext;
nsCSSSelector* ourSel = &mSelector;
while (copySel && ourSel) {
ourSel->mNext = new nsCSSSelector(*copySel);
ourSel = ourSel->mNext;
copySel = copySel->mNext;
}
if (aCopy.mDeclaration) {
aCopy.mDeclaration->Clone(mDeclaration);
}
// rest is constructed lazily on existing data
}
CSSStyleRuleImpl::~CSSStyleRuleImpl(void)
{
#ifdef DEBUG_REFS
gStyleRuleCount--;
printf( "CSSStyleRuleImpl Instances (dtor): %ld\n", (long)gStyleRuleCount);
#endif
nsCSSSelector* next = mSelector.mNext;
while (nsnull != next) {
nsCSSSelector* selector = next;
next = selector->mNext;
delete selector;
}
NS_IF_RELEASE(mDeclaration);
if (nsnull != mImportantRule) {
mImportantRule->mSheet = nsnull;
NS_RELEASE(mImportantRule);
}
if (nsnull != mDOMDeclaration) {
mDOMDeclaration->DropReference();
}
}
// QueryInterface implementation for CSSStyleRuleImpl
NS_INTERFACE_MAP_BEGIN(CSSStyleRuleImpl)
NS_INTERFACE_MAP_ENTRY(nsICSSStyleRule)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSStyleRule)
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(CSSStyleRule)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF_INHERITED(CSSStyleRuleImpl, nsCSSRule);
NS_IMPL_RELEASE_INHERITED(CSSStyleRuleImpl, nsCSSRule);
#if 0
NS_IMETHODIMP CSSStyleRuleImpl::Equals(const nsIStyleRule* aRule, PRBool& aResult) const
{
nsICSSStyleRule* iCSSRule;
if (this == aRule) {
aResult = PR_TRUE;
}
else {
aResult = PR_FALSE;
if ((nsnull != aRule) &&
(NS_OK == ((nsIStyleRule*)aRule)->QueryInterface(NS_GET_IID(nsICSSStyleRule), (void**) &iCSSRule))) {
CSSStyleRuleImpl* rule = (CSSStyleRuleImpl*)iCSSRule;
const nsCSSSelector* local = &mSelector;
const nsCSSSelector* other = &(rule->mSelector);
aResult = PR_TRUE;
if ((rule->mDeclaration != mDeclaration) ||
(rule->mWeight != mWeight)) {
aResult = PR_FALSE;
}
while ((PR_TRUE == aResult) && (nsnull != local) && (nsnull != other)) {
if (! local->Equals(other)) {
aResult = PR_FALSE;
}
local = local->mNext;
other = other->mNext;
}
if ((nsnull != local) || (nsnull != other)) { // more were left
aResult = PR_FALSE;
}
NS_RELEASE(iCSSRule);
}
}
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::HashValue(PRUint32& aValue) const
{
aValue = (PRUint32)this;
return NS_OK;
}
#endif
// Strength is an out-of-band weighting, useful for mapping CSS ! important
NS_IMETHODIMP
CSSStyleRuleImpl::GetStrength(PRInt32& aStrength) const
{
aStrength = 0;
return NS_OK;
}
nsCSSSelector* CSSStyleRuleImpl::FirstSelector(void)
{
return &mSelector;
}
void CSSStyleRuleImpl::AddSelector(const nsCSSSelector& aSelector)
{
nsCSSSelector* selector = new nsCSSSelector(aSelector);
nsCSSSelector* last = &mSelector;
while (nsnull != last->mNext) {
last = last->mNext;
}
last->mNext = selector;
}
void CSSStyleRuleImpl::DeleteSelector(nsCSSSelector* aSelector)
{
if (nsnull != aSelector) {
if (&mSelector == aSelector) { // handle first selector
if (nsnull != mSelector.mNext) {
nsCSSSelector* nextOne = mSelector.mNext;
mSelector = *nextOne; // assign values
mSelector.mNext = nextOne->mNext;
delete nextOne;
}
else {
mSelector.Reset();
}
}
else {
nsCSSSelector* selector = &mSelector;
while (nsnull != selector->mNext) {
if (aSelector == selector->mNext) {
selector->mNext = aSelector->mNext;
delete aSelector;
return;
}
selector = selector->mNext;
}
}
}
}
void CSSStyleRuleImpl::SetSourceSelectorText(const nsString& aSelectorText)
{
/* no need for set, since get recreates the string */
}
void CSSStyleRuleImpl::GetSourceSelectorText(nsString& aSelectorText) const
{
mSelector.ToString( aSelectorText, mSheet, IsPseudoElement(mSelector.mTag),
0 );
}
PRUint32 CSSStyleRuleImpl::GetLineNumber(void) const
{
return mLineNumber;
}
void CSSStyleRuleImpl::SetLineNumber(PRUint32 aLineNumber)
{
mLineNumber = aLineNumber;
}
nsICSSDeclaration* CSSStyleRuleImpl::GetDeclaration(void) const
{
nsICSSDeclaration* result = mDeclaration;
NS_IF_ADDREF(result);
return result;
}
void CSSStyleRuleImpl::SetDeclaration(nsICSSDeclaration* aDeclaration)
{
if (mDeclaration != aDeclaration) {
NS_IF_RELEASE(mImportantRule);
NS_IF_RELEASE(mDeclaration);
mDeclaration = aDeclaration;
NS_IF_ADDREF(mDeclaration);
}
}
PRInt32 CSSStyleRuleImpl::GetWeight(void) const
{
return mWeight;
}
void CSSStyleRuleImpl::SetWeight(PRInt32 aWeight)
{
mWeight = aWeight;
}
nsIStyleRule* CSSStyleRuleImpl::GetImportantRule(void)
{
if ((nsnull == mImportantRule) && (nsnull != mDeclaration)) {
nsICSSDeclaration* important;
mDeclaration->GetImportantValues(important);
if (nsnull != important) {
mImportantRule = new CSSImportantRule(mSheet, important);
NS_ADDREF(mImportantRule);
NS_RELEASE(important);
}
}
NS_IF_ADDREF(mImportantRule);
return mImportantRule;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
return nsCSSRule::GetStyleSheet(aSheet);
}
NS_IMETHODIMP
CSSStyleRuleImpl::SetStyleSheet(nsICSSStyleSheet* aSheet)
{
nsCSSRule::SetStyleSheet(aSheet);
if (nsnull != mImportantRule) { // we're responsible for this guy too
mImportantRule->mSheet = aSheet;
}
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::SetParentRule(nsICSSGroupRule* aRule)
{
return nsCSSRule::SetParentRule(aRule);
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetType(PRInt32& aType) const
{
aType = nsICSSRule::STYLE_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::Clone(nsICSSRule*& aClone) const
{
CSSStyleRuleImpl* clone = new CSSStyleRuleImpl(*this);
if (clone) {
return clone->QueryInterface(NS_GET_IID(nsICSSRule), (void **)&aClone);
}
aClone = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
CSSStyleRuleImpl::MapRuleInfoInto(nsRuleData* aRuleData)
{
if (!aRuleData)
return NS_OK;
if (aRuleData->mFontData)
return MapFontForDeclaration(mDeclaration, *aRuleData->mFontData);
else if (aRuleData->mDisplayData)
return MapDisplayForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mDisplayData);
else if (aRuleData->mColorData)
return MapColorForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mColorData);
else if (aRuleData->mMarginData)
return MapMarginForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mMarginData);
else if (aRuleData->mListData)
return MapListForDeclaration(mDeclaration, *aRuleData->mListData);
else if (aRuleData->mPositionData)
return MapPositionForDeclaration(mDeclaration, *aRuleData->mPositionData);
else if (aRuleData->mTableData)
return MapTableForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mTableData);
else if (aRuleData->mContentData)
return MapContentForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mContentData);
else if (aRuleData->mTextData)
return MapTextForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mTextData);
else if (aRuleData->mUIData)
return MapUIForDeclaration(mDeclaration, aRuleData->mSID, *aRuleData->mUIData);
#ifdef INCLUDE_XUL
else if (aRuleData->mXULData)
return MapXULForDeclaration(mDeclaration, *aRuleData->mXULData);
#endif
return NS_OK;
}
static nsresult
MapFontForDeclaration(nsICSSDeclaration* aDecl, nsCSSFont& aFont)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSFont* ourFont;
aDecl->GetData(kCSSFontSID, (nsCSSStruct**)&ourFont);
if (!ourFont)
return NS_OK; // We don't have any rules for fonts.
if (eCSSUnit_Null == aFont.mFamily.GetUnit() && eCSSUnit_Null != ourFont->mFamily.GetUnit())
aFont.mFamily = ourFont->mFamily;
if (eCSSUnit_Null == aFont.mStyle.GetUnit() && eCSSUnit_Null != ourFont->mStyle.GetUnit())
aFont.mStyle = ourFont->mStyle;
if (eCSSUnit_Null == aFont.mVariant.GetUnit() && eCSSUnit_Null != ourFont->mVariant.GetUnit())
aFont.mVariant = ourFont->mVariant;
if (eCSSUnit_Null == aFont.mWeight.GetUnit() && eCSSUnit_Null != ourFont->mWeight.GetUnit())
aFont.mWeight = ourFont->mWeight;
if (eCSSUnit_Null == aFont.mSize.GetUnit() && eCSSUnit_Null != ourFont->mSize.GetUnit())
aFont.mSize = ourFont->mSize;
if (eCSSUnit_Null == aFont.mSizeAdjust.GetUnit() && eCSSUnit_Null != ourFont->mSizeAdjust.GetUnit())
aFont.mSizeAdjust = ourFont->mSizeAdjust;
return NS_OK;
}
#ifdef INCLUDE_XUL
static nsresult
MapXULForDeclaration(nsICSSDeclaration* aDecl, nsCSSXUL& aXUL)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSXUL* ourXUL;
aDecl->GetData(kCSSXULSID, (nsCSSStruct**)&ourXUL);
if (!ourXUL)
return NS_OK; // We don't have any rules for XUL.
// box-align: enum, inherit
if (aXUL.mBoxAlign.GetUnit() == eCSSUnit_Null && ourXUL->mBoxAlign.GetUnit() != eCSSUnit_Null)
aXUL.mBoxAlign = ourXUL->mBoxAlign;
// box-direction: enum, inherit
if (aXUL.mBoxDirection.GetUnit() == eCSSUnit_Null && ourXUL->mBoxDirection.GetUnit() != eCSSUnit_Null)
aXUL.mBoxDirection = ourXUL->mBoxDirection;
// box-flex: enum, inherit
if (aXUL.mBoxFlex.GetUnit() == eCSSUnit_Null && ourXUL->mBoxFlex.GetUnit() != eCSSUnit_Null)
aXUL.mBoxFlex = ourXUL->mBoxFlex;
// box-orient: enum, inherit
if (aXUL.mBoxOrient.GetUnit() == eCSSUnit_Null && ourXUL->mBoxOrient.GetUnit() != eCSSUnit_Null)
aXUL.mBoxOrient = ourXUL->mBoxOrient;
// box-pack: enum, inherit
if (aXUL.mBoxPack.GetUnit() == eCSSUnit_Null && ourXUL->mBoxPack.GetUnit() != eCSSUnit_Null)
aXUL.mBoxPack = ourXUL->mBoxPack;
// box-ordinal-group: number
if (aXUL.mBoxOrdinal.GetUnit() == eCSSUnit_Null && ourXUL->mBoxOrdinal.GetUnit() != eCSSUnit_Null)
aXUL.mBoxOrdinal = ourXUL->mBoxOrdinal;
return NS_OK;
}
#endif
static nsresult
MapPositionForDeclaration(nsICSSDeclaration* aDecl, nsCSSPosition& aPosition)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSPosition* ourPosition;
aDecl->GetData(kCSSPositionSID, (nsCSSStruct**)&ourPosition);
if (!ourPosition)
return NS_OK; // We don't have any rules for position.
// box offsets: length, percent, auto, inherit
if (ourPosition->mOffset) {
if (aPosition.mOffset->mLeft.GetUnit() == eCSSUnit_Null && ourPosition->mOffset->mLeft.GetUnit() != eCSSUnit_Null)
aPosition.mOffset->mLeft = ourPosition->mOffset->mLeft;
if (aPosition.mOffset->mRight.GetUnit() == eCSSUnit_Null && ourPosition->mOffset->mRight.GetUnit() != eCSSUnit_Null)
aPosition.mOffset->mRight = ourPosition->mOffset->mRight;
if (aPosition.mOffset->mTop.GetUnit() == eCSSUnit_Null && ourPosition->mOffset->mTop.GetUnit() != eCSSUnit_Null)
aPosition.mOffset->mTop = ourPosition->mOffset->mTop;
if (aPosition.mOffset->mBottom.GetUnit() == eCSSUnit_Null && ourPosition->mOffset->mBottom.GetUnit() != eCSSUnit_Null)
aPosition.mOffset->mBottom = ourPosition->mOffset->mBottom;
}
// width/min-width/max-width
if (aPosition.mWidth.GetUnit() == eCSSUnit_Null && ourPosition->mWidth.GetUnit() != eCSSUnit_Null)
aPosition.mWidth = ourPosition->mWidth;
if (aPosition.mMinWidth.GetUnit() == eCSSUnit_Null && ourPosition->mMinWidth.GetUnit() != eCSSUnit_Null)
aPosition.mMinWidth = ourPosition->mMinWidth;
if (aPosition.mMaxWidth.GetUnit() == eCSSUnit_Null && ourPosition->mMaxWidth.GetUnit() != eCSSUnit_Null)
aPosition.mMaxWidth = ourPosition->mMaxWidth;
// height/min-height/max-height
if (aPosition.mHeight.GetUnit() == eCSSUnit_Null && ourPosition->mHeight.GetUnit() != eCSSUnit_Null)
aPosition.mHeight = ourPosition->mHeight;
if (aPosition.mMinHeight.GetUnit() == eCSSUnit_Null && ourPosition->mMinHeight.GetUnit() != eCSSUnit_Null)
aPosition.mMinHeight = ourPosition->mMinHeight;
if (aPosition.mMaxHeight.GetUnit() == eCSSUnit_Null && ourPosition->mMaxHeight.GetUnit() != eCSSUnit_Null)
aPosition.mMaxHeight = ourPosition->mMaxHeight;
// box-sizing: enum, inherit
if (aPosition.mBoxSizing.GetUnit() == eCSSUnit_Null && ourPosition->mBoxSizing.GetUnit() != eCSSUnit_Null)
aPosition.mBoxSizing = ourPosition->mBoxSizing;
// z-index
if (aPosition.mZIndex.GetUnit() == eCSSUnit_Null && ourPosition->mZIndex.GetUnit() != eCSSUnit_Null)
aPosition.mZIndex = ourPosition->mZIndex;
return NS_OK;
}
static nsresult
MapListForDeclaration(nsICSSDeclaration* aDecl, nsCSSList& aList)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSList* ourList;
aDecl->GetData(kCSSListSID, (nsCSSStruct**)&ourList);
if (!ourList)
return NS_OK; // We don't have any rules for lists.
// list-style-type: enum, none, inherit
if (aList.mType.GetUnit() == eCSSUnit_Null && ourList->mType.GetUnit() != eCSSUnit_Null)
aList.mType = ourList->mType;
// list-style-image: url, none, inherit
if (aList.mImage.GetUnit() == eCSSUnit_Null && ourList->mImage.GetUnit() != eCSSUnit_Null)
aList.mImage = ourList->mImage;
// list-style-position: enum, inherit
if (aList.mPosition.GetUnit() == eCSSUnit_Null && ourList->mPosition.GetUnit() != eCSSUnit_Null)
aList.mPosition = ourList->mPosition;
return NS_OK;
}
static nsresult
MapMarginForDeclaration(nsICSSDeclaration* aDeclaration, const nsStyleStructID& aSID, nsCSSMargin& aMargin)
{
nsCSSMargin* ourMargin;
aDeclaration->GetData(kCSSMarginSID, (nsCSSStruct**)&ourMargin);
if (!ourMargin)
return NS_OK;
// Margins
if (aSID == eStyleStruct_Margin && ourMargin->mMargin) {
if (eCSSUnit_Null == aMargin.mMargin->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mMargin->mLeft.GetUnit())
aMargin.mMargin->mLeft = ourMargin->mMargin->mLeft;
if (eCSSUnit_Null == aMargin.mMargin->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mMargin->mTop.GetUnit())
aMargin.mMargin->mTop = ourMargin->mMargin->mTop;
if (eCSSUnit_Null == aMargin.mMargin->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mMargin->mRight.GetUnit())
aMargin.mMargin->mRight = ourMargin->mMargin->mRight;
if (eCSSUnit_Null == aMargin.mMargin->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mMargin->mBottom.GetUnit())
aMargin.mMargin->mBottom = ourMargin->mMargin->mBottom;
}
// Padding
if (aSID == eStyleStruct_Padding && ourMargin->mPadding) {
if (eCSSUnit_Null == aMargin.mPadding->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mPadding->mLeft.GetUnit())
aMargin.mPadding->mLeft = ourMargin->mPadding->mLeft;
if (eCSSUnit_Null == aMargin.mPadding->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mPadding->mTop.GetUnit())
aMargin.mPadding->mTop = ourMargin->mPadding->mTop;
if (eCSSUnit_Null == aMargin.mPadding->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mPadding->mRight.GetUnit())
aMargin.mPadding->mRight = ourMargin->mPadding->mRight;
if (eCSSUnit_Null == aMargin.mPadding->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mPadding->mBottom.GetUnit())
aMargin.mPadding->mBottom = ourMargin->mPadding->mBottom;
}
// Borders
if (aSID == eStyleStruct_Border) {
// border-size
if (ourMargin->mBorderWidth) {
if (eCSSUnit_Null == aMargin.mBorderWidth->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mBorderWidth->mLeft.GetUnit())
aMargin.mBorderWidth->mLeft = ourMargin->mBorderWidth->mLeft;
if (eCSSUnit_Null == aMargin.mBorderWidth->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mBorderWidth->mTop.GetUnit())
aMargin.mBorderWidth->mTop = ourMargin->mBorderWidth->mTop;
if (eCSSUnit_Null == aMargin.mBorderWidth->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mBorderWidth->mRight.GetUnit())
aMargin.mBorderWidth->mRight = ourMargin->mBorderWidth->mRight;
if (eCSSUnit_Null == aMargin.mBorderWidth->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mBorderWidth->mBottom.GetUnit())
aMargin.mBorderWidth->mBottom = ourMargin->mBorderWidth->mBottom;
}
// border-style
if (ourMargin->mBorderStyle) {
if (eCSSUnit_Null == aMargin.mBorderStyle->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mBorderStyle->mLeft.GetUnit())
aMargin.mBorderStyle->mLeft = ourMargin->mBorderStyle->mLeft;
if (eCSSUnit_Null == aMargin.mBorderStyle->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mBorderStyle->mTop.GetUnit())
aMargin.mBorderStyle->mTop = ourMargin->mBorderStyle->mTop;
if (eCSSUnit_Null == aMargin.mBorderStyle->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mBorderStyle->mRight.GetUnit())
aMargin.mBorderStyle->mRight = ourMargin->mBorderStyle->mRight;
if (eCSSUnit_Null == aMargin.mBorderStyle->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mBorderStyle->mBottom.GetUnit())
aMargin.mBorderStyle->mBottom = ourMargin->mBorderStyle->mBottom;
}
// border-color
if (ourMargin->mBorderColor) {
if (eCSSUnit_Null == aMargin.mBorderColor->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mBorderColor->mLeft.GetUnit())
aMargin.mBorderColor->mLeft = ourMargin->mBorderColor->mLeft;
if (eCSSUnit_Null == aMargin.mBorderColor->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mBorderColor->mTop.GetUnit())
aMargin.mBorderColor->mTop = ourMargin->mBorderColor->mTop;
if (eCSSUnit_Null == aMargin.mBorderColor->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mBorderColor->mRight.GetUnit())
aMargin.mBorderColor->mRight = ourMargin->mBorderColor->mRight;
if (eCSSUnit_Null == aMargin.mBorderColor->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mBorderColor->mBottom.GetUnit())
aMargin.mBorderColor->mBottom = ourMargin->mBorderColor->mBottom;
}
// -moz-border-radius
if (ourMargin->mBorderRadius) {
if (eCSSUnit_Null == aMargin.mBorderRadius->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mBorderRadius->mLeft.GetUnit())
aMargin.mBorderRadius->mLeft = ourMargin->mBorderRadius->mLeft;
if (eCSSUnit_Null == aMargin.mBorderRadius->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mBorderRadius->mTop.GetUnit())
aMargin.mBorderRadius->mTop = ourMargin->mBorderRadius->mTop;
if (eCSSUnit_Null == aMargin.mBorderRadius->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mBorderRadius->mRight.GetUnit())
aMargin.mBorderRadius->mRight = ourMargin->mBorderRadius->mRight;
if (eCSSUnit_Null == aMargin.mBorderRadius->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mBorderRadius->mBottom.GetUnit())
aMargin.mBorderRadius->mBottom = ourMargin->mBorderRadius->mBottom;
}
// float-edge
if (eCSSUnit_Null == aMargin.mFloatEdge.GetUnit() && eCSSUnit_Null != ourMargin->mFloatEdge.GetUnit())
aMargin.mFloatEdge = ourMargin->mFloatEdge;
}
// Outline
if (aSID == eStyleStruct_Outline) {
// -moz-outline-radius
if (ourMargin->mOutlineRadius) {
if (eCSSUnit_Null == aMargin.mOutlineRadius->mLeft.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineRadius->mLeft.GetUnit())
aMargin.mOutlineRadius->mLeft = ourMargin->mOutlineRadius->mLeft;
if (eCSSUnit_Null == aMargin.mOutlineRadius->mTop.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineRadius->mTop.GetUnit())
aMargin.mOutlineRadius->mTop = ourMargin->mOutlineRadius->mTop;
if (eCSSUnit_Null == aMargin.mOutlineRadius->mRight.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineRadius->mRight.GetUnit())
aMargin.mOutlineRadius->mRight = ourMargin->mOutlineRadius->mRight;
if (eCSSUnit_Null == aMargin.mOutlineRadius->mBottom.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineRadius->mBottom.GetUnit())
aMargin.mOutlineRadius->mBottom = ourMargin->mOutlineRadius->mBottom;
}
// outline-width
if (eCSSUnit_Null == aMargin.mOutlineWidth.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineWidth.GetUnit())
aMargin.mOutlineWidth = ourMargin->mOutlineWidth;
// outline-color
if (eCSSUnit_Null == aMargin.mOutlineColor.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineColor.GetUnit())
aMargin.mOutlineColor = ourMargin->mOutlineColor;
// outline-style
if (eCSSUnit_Null == aMargin.mOutlineStyle.GetUnit() && eCSSUnit_Null != ourMargin->mOutlineStyle.GetUnit())
aMargin.mOutlineStyle = ourMargin->mOutlineStyle;
}
return NS_OK;
}
static nsresult
MapColorForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSColor& aColor)
{
if (!aDecl)
return NS_OK;
nsCSSColor* ourColor;
aDecl->GetData(kCSSColorSID, (nsCSSStruct**)&ourColor);
if (!ourColor)
return NS_OK; // No rules for color or background.
if (aID == eStyleStruct_Color) {
// color: color, string, inherit
if (aColor.mColor.GetUnit() == eCSSUnit_Null && ourColor->mColor.GetUnit() != eCSSUnit_Null)
aColor.mColor = ourColor->mColor;
}
else if (aID == eStyleStruct_Background) {
// background-color: color, string, enum (flags), inherit
if (aColor.mBackColor.GetUnit() == eCSSUnit_Null && ourColor->mBackColor.GetUnit() != eCSSUnit_Null)
aColor.mBackColor = ourColor->mBackColor;
// background-image: url, none, inherit
if (aColor.mBackImage.GetUnit() == eCSSUnit_Null && ourColor->mBackImage.GetUnit() != eCSSUnit_Null)
aColor.mBackImage = ourColor->mBackImage;
// background-repeat: enum, inherit
if (aColor.mBackRepeat.GetUnit() == eCSSUnit_Null && ourColor->mBackRepeat.GetUnit() != eCSSUnit_Null)
aColor.mBackRepeat = ourColor->mBackRepeat;
// background-attachment: enum, inherit
if (aColor.mBackAttachment.GetUnit() == eCSSUnit_Null && ourColor->mBackAttachment.GetUnit() != eCSSUnit_Null)
aColor.mBackAttachment = ourColor->mBackAttachment;
// background-position: enum, length, percent (flags), inherit
if (aColor.mBackPositionX.GetUnit() == eCSSUnit_Null && ourColor->mBackPositionX.GetUnit() != eCSSUnit_Null)
aColor.mBackPositionX = ourColor->mBackPositionX;
if (aColor.mBackPositionY.GetUnit() == eCSSUnit_Null && ourColor->mBackPositionY.GetUnit() != eCSSUnit_Null)
aColor.mBackPositionY = ourColor->mBackPositionY;
}
return NS_OK;
}
static nsresult
MapTableForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSTable& aTable)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSTable* ourTable;
aDecl->GetData(kCSSTableSID, (nsCSSStruct**)&ourTable);
if (!ourTable)
return NS_OK; // We don't have any rules for tables.
if (aID == eStyleStruct_TableBorder) {
// border-collapse: enum, inherit
if (aTable.mBorderCollapse.GetUnit() == eCSSUnit_Null && ourTable->mBorderCollapse.GetUnit() != eCSSUnit_Null)
aTable.mBorderCollapse = ourTable->mBorderCollapse;
// border-spacing-x: length, inherit
if (aTable.mBorderSpacingX.GetUnit() == eCSSUnit_Null && ourTable->mBorderSpacingX.GetUnit() != eCSSUnit_Null)
aTable.mBorderSpacingX = ourTable->mBorderSpacingX;
// border-spacing-y: length, inherit
if (aTable.mBorderSpacingY.GetUnit() == eCSSUnit_Null && ourTable->mBorderSpacingY.GetUnit() != eCSSUnit_Null)
aTable.mBorderSpacingY = ourTable->mBorderSpacingY;
// caption-side: enum, inherit
if (aTable.mCaptionSide.GetUnit() == eCSSUnit_Null && ourTable->mCaptionSide.GetUnit() != eCSSUnit_Null)
aTable.mCaptionSide = ourTable->mCaptionSide;
// empty-cells: enum, inherit
if (aTable.mEmptyCells.GetUnit() == eCSSUnit_Null && ourTable->mEmptyCells.GetUnit() != eCSSUnit_Null)
aTable.mEmptyCells = ourTable->mEmptyCells;
}
else if (aID == eStyleStruct_Table) {
// table-layout: auto, enum, inherit
if (aTable.mLayout.GetUnit() == eCSSUnit_Null && ourTable->mLayout.GetUnit() != eCSSUnit_Null)
aTable.mLayout = ourTable->mLayout;
}
return NS_OK;
}
static nsresult
MapContentForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSContent& aContent)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSContent* ourContent;
aDecl->GetData(kCSSContentSID, (nsCSSStruct**)&ourContent);
if (!ourContent)
return NS_OK; // We don't have any rules for content.
if (aID == eStyleStruct_Content) {
if (!aContent.mContent && ourContent->mContent)
aContent.mContent = ourContent->mContent;
if (!aContent.mCounterIncrement && ourContent->mCounterIncrement)
aContent.mCounterIncrement = ourContent->mCounterIncrement;
if (!aContent.mCounterReset && ourContent->mCounterReset)
aContent.mCounterReset = ourContent->mCounterReset;
if (aContent.mMarkerOffset.GetUnit() == eCSSUnit_Null && ourContent->mMarkerOffset.GetUnit() != eCSSUnit_Null)
aContent.mMarkerOffset = ourContent->mMarkerOffset;
}
else if (aID == eStyleStruct_Quotes) {
if (!aContent.mQuotes && ourContent->mQuotes)
aContent.mQuotes = ourContent->mQuotes;
}
return NS_OK;
}
static nsresult
MapTextForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSText& aText)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSText* ourText;
aDecl->GetData(kCSSTextSID, (nsCSSStruct**)&ourText);
if (!ourText)
return NS_OK; // We don't have any rules for text.
if (aID == eStyleStruct_Text) {
if (aText.mLetterSpacing.GetUnit() == eCSSUnit_Null && ourText->mLetterSpacing.GetUnit() != eCSSUnit_Null)
aText.mLetterSpacing = ourText->mLetterSpacing;
if (aText.mLineHeight.GetUnit() == eCSSUnit_Null && ourText->mLineHeight.GetUnit() != eCSSUnit_Null)
aText.mLineHeight = ourText->mLineHeight;
if (aText.mTextIndent.GetUnit() == eCSSUnit_Null && ourText->mTextIndent.GetUnit() != eCSSUnit_Null)
aText.mTextIndent = ourText->mTextIndent;
if (aText.mTextTransform.GetUnit() == eCSSUnit_Null && ourText->mTextTransform.GetUnit() != eCSSUnit_Null)
aText.mTextTransform = ourText->mTextTransform;
if (aText.mTextAlign.GetUnit() == eCSSUnit_Null && ourText->mTextAlign.GetUnit() != eCSSUnit_Null)
aText.mTextAlign = ourText->mTextAlign;
if (aText.mWhiteSpace.GetUnit() == eCSSUnit_Null && ourText->mWhiteSpace.GetUnit() != eCSSUnit_Null)
aText.mWhiteSpace = ourText->mWhiteSpace;
if (aText.mWordSpacing.GetUnit() == eCSSUnit_Null && ourText->mWordSpacing.GetUnit() != eCSSUnit_Null)
aText.mWordSpacing = ourText->mWordSpacing;
}
else if (aID == eStyleStruct_TextReset) {
if (aText.mVerticalAlign.GetUnit() == eCSSUnit_Null && ourText->mVerticalAlign.GetUnit() != eCSSUnit_Null)
aText.mVerticalAlign = ourText->mVerticalAlign;
if (aText.mDecoration.GetUnit() == eCSSUnit_Null && ourText->mDecoration.GetUnit() != eCSSUnit_Null)
aText.mDecoration = ourText->mDecoration;
#ifdef IBMBIDI
if (aText.mUnicodeBidi.GetUnit() == eCSSUnit_Null && ourText->mUnicodeBidi.GetUnit() != eCSSUnit_Null)
aText.mUnicodeBidi = ourText->mUnicodeBidi;
#endif
}
return NS_OK;
}
static nsresult
MapDisplayForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSDisplay& aDisplay)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSDisplay* ourDisplay;
aDecl->GetData(kCSSDisplaySID, (nsCSSStruct**)&ourDisplay);
if (!ourDisplay)
return NS_OK; // We don't have any rules for display.
if (aID == eStyleStruct_Display) {
// display: enum, none, inherit
if (aDisplay.mDisplay.GetUnit() == eCSSUnit_Null && ourDisplay->mDisplay.GetUnit() != eCSSUnit_Null)
aDisplay.mDisplay = ourDisplay->mDisplay;
// binding: url, none, inherit
if (aDisplay.mBinding.GetUnit() == eCSSUnit_Null && ourDisplay->mBinding.GetUnit() != eCSSUnit_Null)
aDisplay.mBinding = ourDisplay->mBinding;
// position: enum, inherit
if (aDisplay.mPosition.GetUnit() == eCSSUnit_Null && ourDisplay->mPosition.GetUnit() != eCSSUnit_Null)
aDisplay.mPosition = ourDisplay->mPosition;
// clear: enum, none, inherit
if (aDisplay.mClear.GetUnit() == eCSSUnit_Null && ourDisplay->mClear.GetUnit() != eCSSUnit_Null)
aDisplay.mClear = ourDisplay->mClear;
// float: enum, none, inherit
if (aDisplay.mFloat.GetUnit() == eCSSUnit_Null && ourDisplay->mFloat.GetUnit() != eCSSUnit_Null)
aDisplay.mFloat = ourDisplay->mFloat;
// overflow: enum, auto, inherit
if (aDisplay.mOverflow.GetUnit() == eCSSUnit_Null && ourDisplay->mOverflow.GetUnit() != eCSSUnit_Null)
aDisplay.mOverflow = ourDisplay->mOverflow;
// clip property: length, auto, inherit
if (ourDisplay->mClip) {
if (aDisplay.mClip->mLeft.GetUnit() == eCSSUnit_Null && ourDisplay->mClip->mLeft.GetUnit() != eCSSUnit_Null)
aDisplay.mClip->mLeft = ourDisplay->mClip->mLeft;
if (aDisplay.mClip->mRight.GetUnit() == eCSSUnit_Null && ourDisplay->mClip->mRight.GetUnit() != eCSSUnit_Null)
aDisplay.mClip->mRight = ourDisplay->mClip->mRight;
if (aDisplay.mClip->mTop.GetUnit() == eCSSUnit_Null && ourDisplay->mClip->mTop.GetUnit() != eCSSUnit_Null)
aDisplay.mClip->mTop = ourDisplay->mClip->mTop;
if (aDisplay.mClip->mBottom.GetUnit() == eCSSUnit_Null && ourDisplay->mClip->mBottom.GetUnit() != eCSSUnit_Null)
aDisplay.mClip->mBottom = ourDisplay->mClip->mBottom;
}
}
else if (aID == eStyleStruct_Visibility) {
// opacity: factor, percent, inherit
if (aDisplay.mOpacity.GetUnit() == eCSSUnit_Null && ourDisplay->mOpacity.GetUnit() != eCSSUnit_Null)
aDisplay.mOpacity = ourDisplay->mOpacity;
// direction: enum, inherit
if (aDisplay.mDirection.GetUnit() == eCSSUnit_Null && ourDisplay->mDirection.GetUnit() != eCSSUnit_Null)
aDisplay.mDirection = ourDisplay->mDirection;
// visibility: enum, inherit
if (aDisplay.mVisibility.GetUnit() == eCSSUnit_Null && ourDisplay->mVisibility.GetUnit() != eCSSUnit_Null)
aDisplay.mVisibility = ourDisplay->mVisibility;
}
return NS_OK;
}
static nsresult
MapUIForDeclaration(nsICSSDeclaration* aDecl, const nsStyleStructID& aID, nsCSSUserInterface& aUI)
{
if (!aDecl)
return NS_OK; // The rule must have a declaration.
nsCSSUserInterface* ourUI;
aDecl->GetData(kCSSUserInterfaceSID, (nsCSSStruct**)&ourUI);
if (!ourUI)
return NS_OK; // We don't have any rules for UI.
if (aID == eStyleStruct_UserInterface) {
if (aUI.mUserFocus.GetUnit() == eCSSUnit_Null && ourUI->mUserFocus.GetUnit() != eCSSUnit_Null)
aUI.mUserFocus = ourUI->mUserFocus;
if (aUI.mUserInput.GetUnit() == eCSSUnit_Null && ourUI->mUserInput.GetUnit() != eCSSUnit_Null)
aUI.mUserInput = ourUI->mUserInput;
if (aUI.mUserModify.GetUnit() == eCSSUnit_Null && ourUI->mUserModify.GetUnit() != eCSSUnit_Null)
aUI.mUserModify = ourUI->mUserModify;
if (!aUI.mCursor && ourUI->mCursor)
aUI.mCursor = ourUI->mCursor;
}
else if (aID == eStyleStruct_UIReset) {
if (aUI.mUserSelect.GetUnit() == eCSSUnit_Null && ourUI->mUserSelect.GetUnit() != eCSSUnit_Null)
aUI.mUserSelect = ourUI->mUserSelect;
if (!aUI.mKeyEquivalent && ourUI->mKeyEquivalent)
aUI.mKeyEquivalent = ourUI->mKeyEquivalent;
if (aUI.mResizer.GetUnit() == eCSSUnit_Null && ourUI->mResizer.GetUnit() != eCSSUnit_Null)
aUI.mResizer = ourUI->mResizer;
}
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
nsAutoString buffer;
mSelector.ToString(buffer, mSheet, PR_FALSE, 0);
buffer.AppendWithConversion(" weight: ");
buffer.AppendInt(mWeight, 10);
buffer.AppendWithConversion(" ");
fputs(buffer, out);
if (nsnull != mDeclaration) {
mDeclaration->List(out);
}
else {
fputs("{ null declaration }", out);
}
fputs("\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSStyleRuleImpl's size):
* 1) sizeof(*this)
* + sizeof the DOMDeclaration if it exists and is unique
*
* Contained / Aggregated data (not reported as CSSStyleRuleImpl's size):
* 1) mDeclaration if it exists
* 2) mImportantRule if it exists
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSStyleRuleImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSStyleRuleImpl"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// remove the sizeof the mSelector's class since we count it seperately below
aSize -= sizeof(mSelector);
// and add the size of the DOMDeclaration
// XXX - investigate the size and quantity of these
if(mDOMDeclaration && uniqueItems->AddItem(mDOMDeclaration)){
aSize += sizeof(DOMCSSDeclarationImpl);
}
aSizeOfHandler->AddSize(tag,aSize);
// now delegate to the Selector, Declaration, and ImportantRule
mSelector.SizeOf(aSizeOfHandler, localSize);
if(mDeclaration){
mDeclaration->SizeOf(aSizeOfHandler, localSize);
}
if(mImportantRule){
mImportantRule->SizeOf(aSizeOfHandler, localSize);
}
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetType(PRUint16* aType)
{
*aType = nsIDOMCSSRule::STYLE_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetCssText(nsAWritableString& aCssText)
{
mSelector.ToString( aCssText, mSheet, IsPseudoElement(mSelector.mTag),
0 );
aCssText.Append(PRUnichar(' '));
aCssText.Append(PRUnichar('{'));
aCssText.Append(PRUnichar(' '));
if (mDeclaration)
{
nsAutoString tempString;
mDeclaration->ToString( tempString );
aCssText.Append( tempString );
}
aCssText.Append(PRUnichar(' '));
aCssText.Append(PRUnichar('}'));
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::SetCssText(const nsAReadableString& aCssText)
{
// XXX TBI - need to re-parse rule & declaration
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
if (nsnull != mSheet) {
return mSheet->QueryInterface(NS_GET_IID(nsIDOMCSSStyleSheet), (void**)aSheet);
}
*aSheet = nsnull;
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return CallQueryInterface(mParentRule, aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetSelectorText(nsAWritableString& aSelectorText)
{
mSelector.ToString( aSelectorText, mSheet, IsPseudoElement(mSelector.mTag), 0 );
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::SetSelectorText(const nsAReadableString& aSelectorText)
{
// XXX TBI - get a parser and re-parse the selectors,
// XXX then need to re-compute the cascade
// XXX and dirty sheet
return NS_OK;
}
NS_IMETHODIMP
CSSStyleRuleImpl::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
{
if (nsnull == mDOMDeclaration) {
mDOMDeclaration = new DOMCSSDeclarationImpl(this);
if (nsnull == mDOMDeclaration) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(mDOMDeclaration);
}
*aStyle = mDOMDeclaration;
NS_ADDREF(mDOMDeclaration);
return NS_OK;
}
NS_HTML nsresult
NS_NewCSSStyleRule(nsICSSStyleRule** aInstancePtrResult, const nsCSSSelector& aSelector)
{
if (aInstancePtrResult == nsnull) {
return NS_ERROR_NULL_POINTER;
}
CSSStyleRuleImpl *it = new CSSStyleRuleImpl(aSelector);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(NS_GET_IID(nsICSSStyleRule), (void **) aInstancePtrResult);
}
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