gecko-dev/layout/style/nsCSSStyleRule.cpp

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C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsICSSStyleRule.h"
#include "nsICSSDeclaration.h"
#include "nsIStyleContext.h"
#include "nsIPresContext.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"
//#define DEBUG_REFS
static NS_DEFINE_IID(kIStyleRuleIID, NS_ISTYLE_RULE_IID);
static NS_DEFINE_IID(kICSSDeclarationIID, NS_ICSS_DECLARATION_IID);
static NS_DEFINE_IID(kICSSStyleRuleIID, NS_ICSS_STYLE_RULE_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);
// -- nsCSSSelector -------------------------------
nsCSSSelector::nsCSSSelector()
: mTag(nsnull), mID(nsnull), mClass(nsnull), mPseudoClass(nsnull),
mNext(nsnull)
{
}
nsCSSSelector::nsCSSSelector(nsIAtom* aTag, nsIAtom* aID, nsIAtom* aClass, nsIAtom* aPseudoClass)
: mTag(aTag), mID(aID), mClass(aClass), mPseudoClass(aPseudoClass),
mNext(nsnull)
{
NS_IF_ADDREF(mTag);
NS_IF_ADDREF(mID);
NS_IF_ADDREF(mClass);
NS_IF_ADDREF(mPseudoClass);
}
nsCSSSelector::nsCSSSelector(const nsCSSSelector& aCopy)
: mTag(aCopy.mTag), mID(aCopy.mID), mClass(aCopy.mClass), mPseudoClass(aCopy.mPseudoClass),
mNext(nsnull)
{ // implmented to support extension to CSS2 (when we have to copy the array)
NS_IF_ADDREF(mTag);
NS_IF_ADDREF(mID);
NS_IF_ADDREF(mClass);
NS_IF_ADDREF(mPseudoClass);
}
nsCSSSelector::~nsCSSSelector()
{
NS_IF_RELEASE(mTag);
NS_IF_RELEASE(mID);
NS_IF_RELEASE(mClass);
NS_IF_RELEASE(mPseudoClass);
}
nsCSSSelector& nsCSSSelector::operator=(const nsCSSSelector& aCopy)
{
NS_IF_RELEASE(mTag);
NS_IF_RELEASE(mID);
NS_IF_RELEASE(mClass);
NS_IF_RELEASE(mPseudoClass);
mTag = aCopy.mTag;
mID = aCopy.mID;
mClass = aCopy.mClass;
mPseudoClass = aCopy.mPseudoClass;
NS_IF_ADDREF(mTag);
NS_IF_ADDREF(mID);
NS_IF_ADDREF(mClass);
NS_IF_ADDREF(mPseudoClass);
return *this;
}
PRBool nsCSSSelector::Equals(const nsCSSSelector* aOther) const
{
if (nsnull != aOther) {
return (PRBool)((aOther->mTag == mTag) && (aOther->mID == mID) &&
(aOther->mClass == mClass) && (aOther->mPseudoClass == mPseudoClass));
}
return PR_FALSE;
}
void nsCSSSelector::Set(const nsString& aTag, const nsString& aID,
const nsString& aClass, const nsString& aPseudoClass)
{
nsAutoString buffer;
NS_IF_RELEASE(mTag);
NS_IF_RELEASE(mID);
NS_IF_RELEASE(mClass);
NS_IF_RELEASE(mPseudoClass);
if (0 < aTag.Length()) {
aTag.ToUpperCase(buffer); // XXX is this correct? what about class?
mTag = NS_NewAtom(buffer);
}
if (0 < aID.Length()) {
mID = NS_NewAtom(aID);
}
if (0 < aClass.Length()) {
mClass = NS_NewAtom(aClass);
}
if (0 < aPseudoClass.Length()) {
aPseudoClass.ToUpperCase(buffer);
mPseudoClass = NS_NewAtom(buffer);
if (nsnull == mTag) {
mTag = nsHTMLAtoms::a;
NS_ADDREF(mTag);
}
}
}
// -- nsCSSStyleRule -------------------------------
class CSSStyleRuleImpl : public nsICSSStyleRule {
public:
void* operator new(size_t size);
void* operator new(size_t size, nsIArena* aArena);
void operator delete(void* ptr);
CSSStyleRuleImpl(const nsCSSSelector& aSelector);
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
NS_IMETHOD_(nsrefcnt) AddRef();
NS_IMETHOD_(nsrefcnt) Release();
virtual PRBool Equals(const nsIStyleRule* aRule) const;
virtual PRUint32 HashValue(void) const;
virtual nsCSSSelector* FirstSelector(void);
virtual void AddSelector(const nsCSSSelector& aSelector);
virtual void DeleteSelector(nsCSSSelector* aSelector);
virtual nsICSSDeclaration* GetDeclaration(void) const;
virtual void SetDeclaration(nsICSSDeclaration* aDeclaration);
virtual PRInt32 GetWeight(void) const;
virtual void SetWeight(PRInt32 aWeight);
virtual nscoord CalcLength(const nsCSSValue& aValue, const nsStyleFont* aFont,
nsIPresContext* aPresContext);
virtual PRBool SetCoord(const nsCSSValue& aValue, nsStyleCoord& aCoord,
PRInt32 aMask, const nsStyleFont* aFont,
nsIPresContext* aPresContext);
virtual void MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
private:
// These are not supported and are not implemented!
CSSStyleRuleImpl(const CSSStyleRuleImpl& aCopy);
CSSStyleRuleImpl& operator=(const CSSStyleRuleImpl& aCopy);
protected:
virtual ~CSSStyleRuleImpl();
protected:
PRUint32 mInHeap : 1;
PRUint32 mRefCnt : 31;
nsCSSSelector mSelector;
nsICSSDeclaration* mDeclaration;
PRInt32 mWeight;
#ifdef DEBUG_REFS
PRInt32 mInstance;
#endif
};
void* CSSStyleRuleImpl::operator new(size_t size)
{
CSSStyleRuleImpl* rv = (CSSStyleRuleImpl*) ::operator new(size);
#ifdef NS_DEBUG
if (nsnull != rv) {
nsCRT::memset(rv, 0xEE, size);
}
#endif
rv->mInHeap = 1;
return (void*) rv;
}
void* CSSStyleRuleImpl::operator new(size_t size, nsIArena* aArena)
{
CSSStyleRuleImpl* rv = (CSSStyleRuleImpl*) aArena->Alloc(PRInt32(size));
#ifdef NS_DEBUG
if (nsnull != rv) {
nsCRT::memset(rv, 0xEE, size);
}
#endif
rv->mInHeap = 0;
return (void*) rv;
}
void CSSStyleRuleImpl::operator delete(void* ptr)
{
CSSStyleRuleImpl* rule = (CSSStyleRuleImpl*) ptr;
if (nsnull != rule) {
if (rule->mInHeap) {
::delete ptr;
}
}
}
#ifdef DEBUG_REFS
static PRInt32 gInstanceCount;
static const PRInt32 kInstrument = 1075;
#endif
CSSStyleRuleImpl::CSSStyleRuleImpl(const nsCSSSelector& aSelector)
: mSelector(aSelector), mDeclaration(nsnull), mWeight(0)
{
NS_INIT_REFCNT();
#ifdef DEBUG_REFS
mInstance = gInstanceCount++;
fprintf(stdout, "%d of %d + CSSStyleRule\n", mInstance, gInstanceCount);
#endif
}
CSSStyleRuleImpl::~CSSStyleRuleImpl()
{
nsCSSSelector* next = mSelector.mNext;
while (nsnull != next) {
nsCSSSelector* selector = next;
next = selector->mNext;
delete selector;
}
NS_IF_RELEASE(mDeclaration);
#ifdef DEBUG_REFS
--gInstanceCount;
fprintf(stdout, "%d of %d - CSSStyleRule\n", mInstance, gInstanceCount);
#endif
}
#ifdef DEBUG_REFS
nsrefcnt CSSStyleRuleImpl::AddRef(void)
{
if (mInstance == kInstrument) {
fprintf(stdout, "%d AddRef CSSStyleRule\n", mRefCnt + 1);
}
return ++mRefCnt;
}
nsrefcnt CSSStyleRuleImpl::Release(void)
{
if (mInstance == kInstrument) {
fprintf(stdout, "%d Release CSSStyleRule\n", mRefCnt - 1);
}
if (--mRefCnt == 0) {
delete this;
return 0;
}
return mRefCnt;
}
#else
NS_IMPL_ADDREF(CSSStyleRuleImpl)
NS_IMPL_RELEASE(CSSStyleRuleImpl)
#endif
nsresult CSSStyleRuleImpl::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
if (aIID.Equals(kICSSStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSStyleRule*)this);
AddRef();
return NS_OK;
}
if (aIID.Equals(kIStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsIStyleRule*)this);
AddRef();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtrResult = (void*) ((nsISupports*)this);
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
PRBool CSSStyleRuleImpl::Equals(const nsIStyleRule* aRule) const
{
nsICSSStyleRule* iCSSRule;
if (this == aRule) {
return PR_TRUE;
}
if ((nsnull != aRule) &&
(NS_OK == ((nsIStyleRule*)aRule)->QueryInterface(kICSSStyleRuleIID, (void**) &iCSSRule))) {
CSSStyleRuleImpl* rule = (CSSStyleRuleImpl*)iCSSRule;
const nsCSSSelector* local = &mSelector;
const nsCSSSelector* other = &(rule->mSelector);
PRBool result = PR_TRUE;
while ((PR_TRUE == result) && (nsnull != local) && (nsnull != other)) {
if (! local->Equals(other)) {
result = PR_FALSE;
}
local = local->mNext;
other = other->mNext;
}
if ((nsnull != local) || (nsnull != other)) { // more were left
result = PR_FALSE;
}
if ((rule->mDeclaration != mDeclaration) ||
(rule->mWeight != mWeight)) {
result = PR_FALSE;
}
NS_RELEASE(iCSSRule);
return result;
}
return PR_FALSE;
}
PRUint32 CSSStyleRuleImpl::HashValue(void) const
{
return (PRUint32)this;
}
nsCSSSelector* CSSStyleRuleImpl::FirstSelector(void)
{
return &mSelector;
}
void CSSStyleRuleImpl::AddSelector(const nsCSSSelector& aSelector)
{
if ((nsnull != aSelector.mTag) || (nsnull != aSelector.mID) ||
(nsnull != aSelector.mClass) || (nsnull != aSelector.mPseudoClass)) { // skip empty selectors
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
mSelector = *aSelector; // assign value
mSelector.mNext = aSelector->mNext;
delete aSelector;
}
else {
nsCSSSelector* selector = &mSelector;
while (nsnull != selector->mNext) {
if (aSelector == selector->mNext) {
selector->mNext = aSelector->mNext;
delete aSelector;
return;
}
selector = selector->mNext;
}
}
}
}
nsICSSDeclaration* CSSStyleRuleImpl::GetDeclaration(void) const
{
NS_IF_ADDREF(mDeclaration);
return mDeclaration;
}
void CSSStyleRuleImpl::SetDeclaration(nsICSSDeclaration* aDeclaration)
{
NS_IF_RELEASE(mDeclaration);
mDeclaration = aDeclaration;
NS_IF_ADDREF(mDeclaration);
}
PRInt32 CSSStyleRuleImpl::GetWeight(void) const
{
return mWeight;
}
void CSSStyleRuleImpl::SetWeight(PRInt32 aWeight)
{
mWeight = aWeight;
}
nscoord CSSStyleRuleImpl::CalcLength(const nsCSSValue& aValue,
const nsStyleFont* aFont,
nsIPresContext* aPresContext)
{
NS_ASSERTION(aValue.IsLengthUnit(), "not a length unit");
if (aValue.IsFixedLengthUnit()) {
return aValue.GetLengthTwips();
}
nsCSSUnit unit = aValue.GetUnit();
switch (unit) {
case eCSSUnit_EM:
return aFont->mFont.size;
case eCSSUnit_EN:
return (aFont->mFont.size / 2);
case eCSSUnit_XHeight:
NS_NOTYETIMPLEMENTED("x height unit");
return ((aFont->mFont.size / 3) * 2); // XXX HACK!
case eCSSUnit_CapHeight:
NS_NOTYETIMPLEMENTED("cap height unit");
return ((aFont->mFont.size / 3) * 2); // XXX HACK!
case eCSSUnit_Pixel:
return NSFloatPixelsToTwips(aValue.GetFloatValue(), aPresContext->GetPixelsToTwips());
}
return 0;
}
#define SETCOORD_NORMAL 0x01
#define SETCOORD_AUTO 0x02
#define SETCOORD_INHERIT 0x04
#define SETCOORD_PERCENT 0x08
#define SETCOORD_FACTOR 0x10
#define SETCOORD_LENGTH 0x20
#define SETCOORD_INTEGER 0x40
#define SETCOORD_ENUMERATED 0x80
#define SETCOORD_LP (SETCOORD_LENGTH | SETCOORD_PERCENT)
#define SETCOORD_LH (SETCOORD_LENGTH | SETCOORD_INHERIT)
#define SETCOORD_AH (SETCOORD_AUTO | SETCOORD_INHERIT)
#define SETCOORD_LPH (SETCOORD_LP | SETCOORD_INHERIT)
#define SETCOORD_LPFHN (SETCOORD_LPH | SETCOORD_FACTOR | SETCOORD_NORMAL)
#define SETCOORD_LPAH (SETCOORD_LP | SETCOORD_AH)
#define SETCOORD_LPEH (SETCOORD_LP | SETCOORD_ENUMERATED | SETCOORD_INHERIT)
#define SETCOORD_IAH (SETCOORD_INTEGER | SETCOORD_AH)
PRBool CSSStyleRuleImpl::SetCoord(const nsCSSValue& aValue, nsStyleCoord& aCoord,
PRInt32 aMask, const nsStyleFont* aFont,
nsIPresContext* aPresContext)
{
PRBool result = PR_TRUE;
if (aValue.GetUnit() == eCSSUnit_Null) {
result = PR_FALSE;
}
else if (((aMask & SETCOORD_LENGTH) != 0) &&
aValue.IsLengthUnit()) {
aCoord.SetCoordValue(CalcLength(aValue, aFont, aPresContext));
}
else if (((aMask & SETCOORD_PERCENT) != 0) &&
(aValue.GetUnit() == eCSSUnit_Percent)) {
aCoord.SetPercentValue(aValue.GetPercentValue());
}
else if (((aMask & SETCOORD_INTEGER) != 0) &&
(aValue.GetUnit() == eCSSUnit_Integer)) {
aCoord.SetIntValue(aValue.GetIntValue(), eStyleUnit_Integer);
}
else if (((aMask & SETCOORD_ENUMERATED) != 0) &&
(aValue.GetUnit() == eCSSUnit_Enumerated)) {
aCoord.SetIntValue(aValue.GetIntValue(), eStyleUnit_Enumerated);
}
else if (((aMask & SETCOORD_AUTO) != 0) &&
(aValue.GetUnit() == eCSSUnit_Auto)) {
aCoord.SetAutoValue();
}
else if (((aMask & SETCOORD_INHERIT) != 0) &&
(aValue.GetUnit() == eCSSUnit_Inherit)) {
aCoord.SetInheritValue();
}
else if (((aMask & SETCOORD_NORMAL) != 0) &&
(aValue.GetUnit() == eCSSUnit_Normal)) {
aCoord.SetNormalValue();
}
else if (((aMask & SETCOORD_FACTOR) != 0) &&
(aValue.GetUnit() == eCSSUnit_Number)) {
aCoord.SetFactorValue(aValue.GetFloatValue());
}
else {
result = PR_FALSE; // didn't set anything
}
return result;
}
void CSSStyleRuleImpl::MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
if (nsnull != mDeclaration) {
nsStyleFont* font = (nsStyleFont*)aContext->GetMutableStyleData(eStyleStruct_Font);
nsCSSFont* ourFont;
if (NS_OK == mDeclaration->GetData(kCSSFontSID, (nsCSSStruct**)&ourFont)) {
if (nsnull != ourFont) {
const nsStyleFont* parentFont = font;
nsIStyleContext* parentContext = aContext->GetParent();
if (nsnull != parentContext) {
parentFont = (const nsStyleFont*)parentContext->GetStyleData(eStyleStruct_Font);
}
const nsFont& defaultFont = aPresContext->GetDefaultFont();
const nsFont& defaultFixedFont = aPresContext->GetDefaultFixedFont();
// font-family: string list
if (ourFont->mFamily.GetUnit() == eCSSUnit_String) {
nsIDeviceContext* dc = aPresContext->GetDeviceContext();
if (nsnull != dc) {
nsAutoString familyList;
ourFont->mFamily.GetStringValue(familyList);
font->mFont.name = familyList;
nsAutoString face;
if (NS_OK == dc->FirstExistingFont(font->mFont, face)) {
if (face.EqualsIgnoreCase("monospace")) {
font->mFont = font->mFixedFont;
}
else {
font->mFixedFont.name = familyList;
}
}
else {
font->mFont.name = defaultFont.name;
font->mFixedFont.name = defaultFixedFont.name;
}
font->mFlags |= NS_STYLE_FONT_FACE_EXPLICIT;
NS_RELEASE(dc);
}
}
// font-style: enum
if (ourFont->mStyle.GetUnit() == eCSSUnit_Enumerated) {
font->mFont.style = ourFont->mStyle.GetIntValue();
font->mFixedFont.style = ourFont->mStyle.GetIntValue();
}
// font-variant: enum
if (ourFont->mVariant.GetUnit() == eCSSUnit_Enumerated) {
font->mFont.variant = ourFont->mVariant.GetIntValue();
font->mFixedFont.variant = ourFont->mVariant.GetIntValue();
}
// font-weight: abs, enum
if (ourFont->mWeight.GetUnit() == eCSSUnit_Integer) {
font->mFont.weight = ourFont->mWeight.GetIntValue();
font->mFixedFont.weight = ourFont->mWeight.GetIntValue();
}
else if (ourFont->mWeight.GetUnit() == eCSSUnit_Enumerated) {
PRInt32 value = ourFont->mWeight.GetIntValue();
switch (value) {
case NS_STYLE_FONT_WEIGHT_NORMAL:
case NS_STYLE_FONT_WEIGHT_BOLD:
font->mFont.weight = value;
font->mFixedFont.weight = value;
break;
case NS_STYLE_FONT_WEIGHT_BOLDER:
case NS_STYLE_FONT_WEIGHT_LIGHTER:
font->mFont.weight = (parentFont->mFont.weight + value);
font->mFixedFont.weight = (parentFont->mFixedFont.weight + value);
break;
}
}
// font-size: enum, length, percent
if (ourFont->mSize.GetUnit() == eCSSUnit_Enumerated) {
PRInt32 value = ourFont->mSize.GetIntValue();
PRInt32 scaler = aPresContext->GetFontScaler();
float scaleFactor = nsStyleUtil::GetScalingFactor(scaler);
if ((NS_STYLE_FONT_SIZE_XXSMALL <= value) &&
(value <= NS_STYLE_FONT_SIZE_XXLARGE)) {
font->mFont.size = nsStyleUtil::CalcFontPointSize(value + 1, (PRInt32)defaultFont.size, scaleFactor);
font->mFixedFont.size = nsStyleUtil::CalcFontPointSize(value + 1, (PRInt32)defaultFixedFont.size, scaleFactor);
}
else if (NS_STYLE_FONT_SIZE_LARGER == value) {
PRInt32 index = nsStyleUtil::FindNextLargerFontSize(parentFont->mFont.size, (PRInt32)defaultFont.size, scaleFactor);
font->mFont.size = nsStyleUtil::CalcFontPointSize(index, (PRInt32)defaultFont.size, scaleFactor);
font->mFixedFont.size = nsStyleUtil::CalcFontPointSize(index, (PRInt32)defaultFixedFont.size, scaleFactor);
}
else if (NS_STYLE_FONT_SIZE_SMALLER == value) {
PRInt32 index = nsStyleUtil::FindNextSmallerFontSize(parentFont->mFont.size, (PRInt32)defaultFont.size, scaleFactor);
font->mFont.size = nsStyleUtil::CalcFontPointSize(index, (PRInt32)defaultFont.size, scaleFactor);
font->mFixedFont.size = nsStyleUtil::CalcFontPointSize(index, (PRInt32)defaultFixedFont.size, scaleFactor);
}
// this does NOT explicitly set font size
}
else if (ourFont->mSize.IsLengthUnit()) {
font->mFont.size = CalcLength(ourFont->mSize, parentFont, aPresContext);
font->mFixedFont.size = CalcLength(ourFont->mSize, parentFont, aPresContext);
font->mFlags |= NS_STYLE_FONT_SIZE_EXPLICIT;
}
else if (ourFont->mSize.GetUnit() == eCSSUnit_Percent) {
font->mFont.size = (nscoord)((float)(parentFont->mFont.size) * ourFont->mSize.GetPercentValue());
font->mFixedFont.size = (nscoord)((float)(parentFont->mFixedFont.size) * ourFont->mSize.GetPercentValue());
font->mFlags |= NS_STYLE_FONT_SIZE_EXPLICIT;
}
NS_IF_RELEASE(parentContext);
}
}
nsCSSText* ourText;
if (NS_OK == mDeclaration->GetData(kCSSTextSID, (nsCSSStruct**)&ourText)) {
if (nsnull != ourText) {
// Get our text style and our parent's text style
nsStyleText* text = (nsStyleText*) aContext->GetMutableStyleData(eStyleStruct_Text);
// letter-spacing
SetCoord(ourText->mLetterSpacing, text->mLetterSpacing, SETCOORD_LH | SETCOORD_NORMAL,
font, aPresContext);
// line-height
SetCoord(ourText->mLineHeight, text->mLineHeight, SETCOORD_LPFHN, font, aPresContext);
// text-align
if (ourText->mTextAlign.GetUnit() == eCSSUnit_Enumerated) {
text->mTextAlign = ourText->mTextAlign.GetIntValue();
}
// text-indent
SetCoord(ourText->mTextIndent, text->mTextIndent, SETCOORD_LPH, font, aPresContext);
// text-decoration: enum, int (bit field)
if ((ourText->mDecoration.GetUnit() == eCSSUnit_Enumerated) ||
(ourText->mDecoration.GetUnit() == eCSSUnit_Integer)) {
PRInt32 td = ourText->mDecoration.GetIntValue();
font->mFont.decorations = td;
font->mFixedFont.decorations = td;
text->mTextDecoration = td;
}
// text-transform
if (ourText->mTextTransform.GetUnit() == eCSSUnit_Enumerated) {
text->mTextTransform = ourText->mTextTransform.GetIntValue();
}
// vertical-align
SetCoord(ourText->mVerticalAlign, text->mVerticalAlign, SETCOORD_LPEH,
font, aPresContext);
// white-space
if (ourText->mWhiteSpace.GetUnit() == eCSSUnit_Enumerated) {
text->mWhiteSpace = ourText->mWhiteSpace.GetIntValue();
}
// word-spacing
SetCoord(ourText->mWordSpacing, text->mWordSpacing, SETCOORD_LH | SETCOORD_NORMAL,
font, aPresContext);
}
}
nsCSSDisplay* ourDisplay;
if (NS_OK == mDeclaration->GetData(kCSSDisplaySID, (nsCSSStruct**)&ourDisplay)) {
if (nsnull != ourDisplay) {
// Get our style and our parent's style
nsStyleDisplay* display = (nsStyleDisplay*)
aContext->GetMutableStyleData(eStyleStruct_Display);
const nsStyleDisplay* parentDisplay = display;
nsIStyleContext* parentContext = aContext->GetParent();
if (nsnull != parentContext) {
parentDisplay = (const nsStyleDisplay*)parentContext->GetStyleData(eStyleStruct_Display);
}
// display
if (ourDisplay->mDisplay.GetUnit() == eCSSUnit_Enumerated) {
display->mDisplay = ourDisplay->mDisplay.GetIntValue();
}
// direction: enum
if (ourDisplay->mDirection.GetUnit() == eCSSUnit_Enumerated) {
display->mDirection = ourDisplay->mDirection.GetIntValue();
}
// clear: enum
if (ourDisplay->mClear.GetUnit() == eCSSUnit_Enumerated) {
display->mBreakType = ourDisplay->mClear.GetIntValue();
}
// float: enum
if (ourDisplay->mFloat.GetUnit() == eCSSUnit_Enumerated) {
display->mFloats = ourDisplay->mFloat.GetIntValue();
}
// visibility: enum, inherit
if (ourDisplay->mVisibility.GetUnit() == eCSSUnit_Enumerated) {
display->mVisible = PRBool (NS_STYLE_VISIBILITY_VISIBLE == ourDisplay->mVisibility.GetIntValue());
}
else if (ourDisplay->mVisibility.GetUnit() == eCSSUnit_Inherit) {
display->mVisible = parentDisplay->mVisible;
}
// overflow
if (ourDisplay->mOverflow.GetUnit() == eCSSUnit_Enumerated) {
display->mOverflow = ourDisplay->mOverflow.GetIntValue();
}
// clip property: length, auto, inherit
if (nsnull != ourDisplay->mClip) {
if (ourDisplay->mClip->mTop.GetUnit() == eCSSUnit_Inherit) { // if one is inherit, they all are
display->mClipFlags = NS_STYLE_CLIP_INHERIT;
}
else {
PRBool fullAuto = PR_TRUE;
display->mClipFlags = 0; // clear it
if (ourDisplay->mClip->mTop.GetUnit() == eCSSUnit_Auto) {
display->mClip.top = 0;
display->mClipFlags |= NS_STYLE_CLIP_TOP_AUTO;
} else if (ourDisplay->mClip->mTop.IsLengthUnit()) {
display->mClip.top = CalcLength(ourDisplay->mClip->mTop, font, aPresContext);
fullAuto = PR_FALSE;
}
if (ourDisplay->mClip->mRight.GetUnit() == eCSSUnit_Auto) {
display->mClip.right = 0;
display->mClipFlags |= NS_STYLE_CLIP_RIGHT_AUTO;
} else if (ourDisplay->mClip->mRight.IsLengthUnit()) {
display->mClip.right = CalcLength(ourDisplay->mClip->mRight, font, aPresContext);
fullAuto = PR_FALSE;
}
if (ourDisplay->mClip->mBottom.GetUnit() == eCSSUnit_Auto) {
display->mClip.bottom = 0;
display->mClipFlags |= NS_STYLE_CLIP_BOTTOM_AUTO;
} else if (ourDisplay->mClip->mBottom.IsLengthUnit()) {
display->mClip.bottom = CalcLength(ourDisplay->mClip->mBottom, font, aPresContext);
fullAuto = PR_FALSE;
}
if (ourDisplay->mClip->mLeft.GetUnit() == eCSSUnit_Auto) {
display->mClip.left = 0;
display->mClipFlags |= NS_STYLE_CLIP_LEFT_AUTO;
} else if (ourDisplay->mClip->mLeft.IsLengthUnit()) {
display->mClip.left = CalcLength(ourDisplay->mClip->mLeft, font, aPresContext);
fullAuto = PR_FALSE;
}
display->mClipFlags &= ~NS_STYLE_CLIP_TYPE_MASK;
if (fullAuto) {
display->mClipFlags |= NS_STYLE_CLIP_AUTO;
}
else {
display->mClipFlags |= NS_STYLE_CLIP_RECT;
}
}
}
NS_IF_RELEASE(parentContext);
}
}
nsCSSColor* ourColor;
if (NS_OK == mDeclaration->GetData(kCSSColorSID, (nsCSSStruct**)&ourColor)) {
if (nsnull != ourColor) {
nsStyleColor* color = (nsStyleColor*)aContext->GetMutableStyleData(eStyleStruct_Color);
// color: color
if (ourColor->mColor.GetUnit() == eCSSUnit_Color) {
color->mColor = ourColor->mColor.GetColorValue();
}
// cursor: enum, auto, inherit
if (ourColor->mCursor.GetUnit() == eCSSUnit_Enumerated) {
color->mCursor = ourColor->mCursor.GetIntValue();
}
else if (ourColor->mCursor.GetUnit() == eCSSUnit_Auto) {
color->mCursor = NS_STYLE_CURSOR_AUTO;
}
else if (ourColor->mCursor.GetUnit() == eCSSUnit_Inherit) {
color->mCursor = NS_STYLE_CURSOR_INHERIT;
}
// cursor-image: string
if (ourColor->mCursorImage.GetUnit() == eCSSUnit_String) {
ourColor->mCursorImage.GetStringValue(color->mCursorImage);
}
// background-color: color, enum (flags)
if (ourColor->mBackColor.GetUnit() == eCSSUnit_Color) {
color->mBackgroundColor = ourColor->mBackColor.GetColorValue();
color->mBackgroundFlags &= ~NS_STYLE_BG_COLOR_TRANSPARENT;
}
else if (ourColor->mBackColor.GetUnit() == eCSSUnit_Enumerated) {
color->mBackgroundFlags |= NS_STYLE_BG_COLOR_TRANSPARENT;
}
// background-image: string (url), none
if (ourColor->mBackImage.GetUnit() == eCSSUnit_String) {
ourColor->mBackImage.GetStringValue(color->mBackgroundImage);
color->mBackgroundFlags &= ~NS_STYLE_BG_IMAGE_NONE;
}
else if (ourColor->mBackImage.GetUnit() == eCSSUnit_None) {
color->mBackgroundImage.Truncate();
color->mBackgroundFlags |= NS_STYLE_BG_IMAGE_NONE;
}
// background-repeat: enum
if (ourColor->mBackRepeat.GetUnit() == eCSSUnit_Enumerated) {
color->mBackgroundRepeat = ourColor->mBackRepeat.GetIntValue();
}
// background-attachment: enum
if (ourColor->mBackAttachment.GetUnit() == eCSSUnit_Enumerated) {
color->mBackgroundAttachment = ourColor->mBackAttachment.GetIntValue();
}
// background-position: length, percent (flags)
if (ourColor->mBackPositionX.GetUnit() == eCSSUnit_Percent) {
color->mBackgroundXPosition = (nscoord)(100.0f * ourColor->mBackPositionX.GetPercentValue());
color->mBackgroundFlags |= NS_STYLE_BG_X_POSITION_PERCENT;
color->mBackgroundFlags &= ~NS_STYLE_BG_X_POSITION_LENGTH;
}
else if (ourColor->mBackPositionX.IsLengthUnit()) {
color->mBackgroundXPosition = CalcLength(ourColor->mBackPositionX,
font, aPresContext);
color->mBackgroundFlags |= NS_STYLE_BG_X_POSITION_LENGTH;
color->mBackgroundFlags &= ~NS_STYLE_BG_X_POSITION_PERCENT;
}
if (ourColor->mBackPositionY.GetUnit() == eCSSUnit_Percent) {
color->mBackgroundYPosition = (nscoord)(100.0f * ourColor->mBackPositionY.GetPercentValue());
color->mBackgroundFlags |= NS_STYLE_BG_Y_POSITION_PERCENT;
color->mBackgroundFlags &= ~NS_STYLE_BG_Y_POSITION_LENGTH;
}
else if (ourColor->mBackPositionY.IsLengthUnit()) {
color->mBackgroundYPosition = CalcLength(ourColor->mBackPositionY,
font, aPresContext);
color->mBackgroundFlags |= NS_STYLE_BG_Y_POSITION_LENGTH;
color->mBackgroundFlags &= ~NS_STYLE_BG_Y_POSITION_PERCENT;
}
// opacity: factor, percent, enum
if (ourColor->mOpacity.GetUnit() == eCSSUnit_Percent) {
color->mOpacity = ourColor->mOpacity.GetPercentValue();
}
else if (ourColor->mOpacity.GetUnit() == eCSSUnit_Number) {
color->mOpacity = ourColor->mOpacity.GetFloatValue();
}
else if (ourColor->mOpacity.GetUnit() == eCSSUnit_Inherit) {
const nsStyleColor* parentColor = color;
nsIStyleContext* parentContext = aContext->GetParent();
if (nsnull != parentContext) {
parentColor = (const nsStyleColor*)parentContext->GetStyleData(eStyleStruct_Color);
color->mOpacity = parentColor->mOpacity;
NS_RELEASE(parentContext);
}
}
// XXX: NYI nsCSSValue mBackFilter;
}
}
nsCSSMargin* ourMargin;
if (NS_OK == mDeclaration->GetData(kCSSMarginSID, (nsCSSStruct**)&ourMargin)) {
if (nsnull != ourMargin) {
nsStyleSpacing* spacing = (nsStyleSpacing*)
aContext->GetMutableStyleData(eStyleStruct_Spacing);
// margin: length, percent, auto, inherit
if (nsnull != ourMargin->mMargin) {
nsStyleCoord coord;
if (SetCoord(ourMargin->mMargin->mLeft, coord, SETCOORD_LPAH, font, aPresContext)) {
spacing->mMargin.SetLeft(coord);
}
if (SetCoord(ourMargin->mMargin->mTop, coord, SETCOORD_LPAH, font, aPresContext)) {
spacing->mMargin.SetTop(coord);
}
if (SetCoord(ourMargin->mMargin->mRight, coord, SETCOORD_LPAH, font, aPresContext)) {
spacing->mMargin.SetRight(coord);
}
if (SetCoord(ourMargin->mMargin->mBottom, coord, SETCOORD_LPAH, font, aPresContext)) {
spacing->mMargin.SetBottom(coord);
}
}
// padding: length, percent, inherit
if (nsnull != ourMargin->mPadding) {
nsStyleCoord coord;
if (SetCoord(ourMargin->mPadding->mLeft, coord, SETCOORD_LPH, font, aPresContext)) {
spacing->mPadding.SetLeft(coord);
}
if (SetCoord(ourMargin->mPadding->mTop, coord, SETCOORD_LPH, font, aPresContext)) {
spacing->mPadding.SetTop(coord);
}
if (SetCoord(ourMargin->mPadding->mRight, coord, SETCOORD_LPH, font, aPresContext)) {
spacing->mPadding.SetRight(coord);
}
if (SetCoord(ourMargin->mPadding->mBottom, coord, SETCOORD_LPH, font, aPresContext)) {
spacing->mPadding.SetBottom(coord);
}
}
// border-size: length, enum (percent), inherit
if (nsnull != ourMargin->mBorder) {
nsStyleCoord coord;
if (SetCoord(ourMargin->mBorder->mLeft, coord, SETCOORD_LPEH, font, aPresContext)) {
spacing->mBorder.SetLeft(coord);
}
if (SetCoord(ourMargin->mBorder->mTop, coord, SETCOORD_LPEH, font, aPresContext)) {
spacing->mBorder.SetTop(coord);
}
if (SetCoord(ourMargin->mBorder->mRight, coord, SETCOORD_LPEH, font, aPresContext)) {
spacing->mBorder.SetRight(coord);
}
if (SetCoord(ourMargin->mBorder->mBottom, coord, SETCOORD_LPEH, font, aPresContext)) {
spacing->mBorder.SetBottom(coord);
}
}
// border-style
if (nsnull != ourMargin->mStyle) {
nsCSSRect* ourStyle = ourMargin->mStyle;
if (ourStyle->mTop.GetUnit() == eCSSUnit_Enumerated) {
spacing->mBorderStyle[NS_SIDE_TOP] = ourStyle->mTop.GetIntValue();
}
if (ourStyle->mRight.GetUnit() == eCSSUnit_Enumerated) {
spacing->mBorderStyle[NS_SIDE_RIGHT] = ourStyle->mRight.GetIntValue();
}
if (ourStyle->mBottom.GetUnit() == eCSSUnit_Enumerated) {
spacing->mBorderStyle[NS_SIDE_BOTTOM] = ourStyle->mBottom.GetIntValue();
}
if (ourStyle->mLeft.GetUnit() == eCSSUnit_Enumerated) {
spacing->mBorderStyle[NS_SIDE_LEFT] = ourStyle->mLeft.GetIntValue();
}
}
// border-color
if (nsnull != ourMargin->mColor) {
nsCSSRect* ourColor = ourMargin->mColor;
if (ourColor->mTop.GetUnit() == eCSSUnit_Color) {
spacing->mBorderColor[NS_SIDE_TOP] = ourColor->mTop.GetColorValue();
}
if (ourColor->mRight.GetUnit() == eCSSUnit_Color) {
spacing->mBorderColor[NS_SIDE_RIGHT] = ourColor->mRight.GetColorValue();
}
if (ourColor->mBottom.GetUnit() == eCSSUnit_Color) {
spacing->mBorderColor[NS_SIDE_BOTTOM] = ourColor->mBottom.GetColorValue();
}
if (ourColor->mLeft.GetUnit() == eCSSUnit_Color) {
spacing->mBorderColor[NS_SIDE_LEFT] = ourColor->mLeft.GetColorValue();
}
}
}
}
nsCSSPosition* ourPosition;
if (NS_OK == mDeclaration->GetData(kCSSPositionSID, (nsCSSStruct**)&ourPosition)) {
if (nsnull != ourPosition) {
nsStylePosition* position = (nsStylePosition*)aContext->GetMutableStyleData(eStyleStruct_Position);
// position: normal, enum, inherit
if (ourPosition->mPosition.GetUnit() == eCSSUnit_Normal) {
position->mPosition = NS_STYLE_POSITION_NORMAL;
}
else if (ourPosition->mPosition.GetUnit() == eCSSUnit_Enumerated) {
position->mPosition = ourPosition->mPosition.GetIntValue();
}
else if (ourPosition->mPosition.GetUnit() == eCSSUnit_Inherit) {
// explicit inheritance
nsIStyleContext* parentContext = aContext->GetParent();
if (nsnull != parentContext) {
const nsStylePosition* parentPosition = (const nsStylePosition*)parentContext->GetStyleData(eStyleStruct_Position);
position->mPosition = parentPosition->mPosition;
}
}
// box offsets: length, percent, auto, inherit
SetCoord(ourPosition->mLeft, position->mLeftOffset, SETCOORD_LPAH, font, aPresContext);
SetCoord(ourPosition->mTop, position->mTopOffset, SETCOORD_LPAH, font, aPresContext);
SetCoord(ourPosition->mWidth, position->mWidth, SETCOORD_LPAH, font, aPresContext);
SetCoord(ourPosition->mHeight, position->mHeight, SETCOORD_LPAH, font, aPresContext);
// z-index
SetCoord(ourPosition->mZIndex, position->mZIndex, SETCOORD_IAH, nsnull, nsnull);
}
}
nsCSSList* ourList;
if (NS_OK == mDeclaration->GetData(kCSSListSID, (nsCSSStruct**)&ourList)) {
if (nsnull != ourList) {
nsStyleList* list = (nsStyleList*)aContext->GetMutableStyleData(eStyleStruct_List);
// list-style-type: enum
if (ourList->mType.GetUnit() == eCSSUnit_Enumerated) {
list->mListStyleType = ourList->mType.GetIntValue();
}
if (ourList->mImage.GetUnit() == eCSSUnit_String) {
// list-style-image: string
ourList->mImage.GetStringValue(list->mListStyleImage);
}
else if (ourList->mImage.GetUnit() == eCSSUnit_Enumerated) {
// list-style-image: none
list->mListStyleImage = "";
}
// list-style-position: enum
if (ourList->mPosition.GetUnit() == eCSSUnit_Enumerated) {
list->mListStylePosition = ourList->mPosition.GetIntValue();
}
}
}
}
}
static void ListSelector(FILE* out, const nsCSSSelector* aSelector)
{
nsAutoString buffer;
if (nsnull != aSelector->mTag) {
aSelector->mTag->ToString(buffer);
fputs(buffer, out);
}
if (nsnull != aSelector->mID) {
aSelector->mID->ToString(buffer);
fputs("#", out);
fputs(buffer, out);
}
if (nsnull != aSelector->mClass) {
aSelector->mClass->ToString(buffer);
fputs(".", out);
fputs(buffer, out);
}
if (nsnull != aSelector->mPseudoClass) {
aSelector->mPseudoClass->ToString(buffer);
fputs(":", out);
fputs(buffer, out);
}
}
void CSSStyleRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
const nsCSSSelector* selector = &mSelector;
while (nsnull != selector) {
ListSelector(out, selector);
fputs(" ", out);
selector = selector->mNext;
}
nsAutoString buffer;
buffer.Append("weight: ");
buffer.Append(mWeight, 10);
buffer.Append(" ");
fputs(buffer, out);
if (nsnull != mDeclaration) {
mDeclaration->List(out);
}
else {
fputs("{ null declaration }", out);
}
fputs("\n", out);
}
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(kICSSStyleRuleIID, (void **) aInstancePtrResult);
}