gecko-dev/layout/style/nsStyleContext.cpp

715 lines
21 KiB
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 "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsString.h"
#include "nsUnitConversion.h"
#include "nsIContent.h"
#include "nsIPresContext.h"
#include "nsIStyleRule.h"
#include "nsISupportsArray.h"
#include "nsCRT.h"
#include "nsIFrame.h"
//#define DEBUG_REFS
#ifdef NS_DEBUG
static PRBool gsDebug = PR_FALSE;
#else
static const PRBool gsDebug = PR_FALSE;
#endif
static NS_DEFINE_IID(kStyleFontSID, NS_STYLEFONT_SID);
static NS_DEFINE_IID(kStyleColorSID, NS_STYLECOLOR_SID);
static NS_DEFINE_IID(kStyleSpacingSID, NS_STYLESPACING_SID);
static NS_DEFINE_IID(kStyleBorderSID, NS_STYLEBORDER_SID);
static NS_DEFINE_IID(kStyleListSID, NS_STYLELIST_SID);
static NS_DEFINE_IID(kStyleMoleculeSID, NS_STYLEMOLECULE_SID);
static NS_DEFINE_IID(kIStyleContextIID, NS_ISTYLECONTEXT_IID);
// --------------------
// nsStyleFont
//
nsStyleFont::nsStyleFont(const nsFont& aFont)
: mFont(aFont)
{
}
nsStyleFont::~nsStyleFont(void)
{
}
struct StyleFontImpl : public nsStyleFont {
StyleFontImpl(const nsFont& aFont)
: nsStyleFont(aFont)
{}
~StyleFontImpl()
{}
virtual const nsID& GetID(void)
{ return kStyleFontSID; }
virtual void InheritFrom(const nsStyleFont& aCopy);
private: // These are not allowed
StyleFontImpl(const StyleFontImpl& aOther);
StyleFontImpl& operator=(const StyleFontImpl& aOther);
};
void StyleFontImpl::InheritFrom(const nsStyleFont& aCopy)
{
mFont = aCopy.mFont;
mThreeD = aCopy.mThreeD;
}
// --------------------
// nsStyleColor
//
struct StyleColorImpl: public nsStyleColor {
StyleColorImpl(void)
{
mBackgroundAttachment = NS_STYLE_BG_ATTACHMENT_SCROLL;
mBackgroundFlags = NS_STYLE_BG_COLOR_TRANSPARENT;
mBackgroundRepeat = NS_STYLE_BG_REPEAT_OFF;
mBackgroundColor = NS_RGB(192,192,192);
}
~StyleColorImpl(void)
{}
virtual const nsID& GetID(void)
{ return kStyleColorSID; }
virtual void InheritFrom(const nsStyleColor& aCopy);
private: // These are not allowed
StyleColorImpl(const StyleColorImpl& aOther);
StyleColorImpl& operator=(const StyleColorImpl& aOther);
};
void StyleColorImpl::InheritFrom(const nsStyleColor& aCopy)
{
mColor = aCopy.mColor;
mBackgroundFlags = NS_STYLE_BG_COLOR_TRANSPARENT;
}
// --------------------
// nsStyleSpacing
//
nsStyleSpacing::nsStyleSpacing(void)
: mMargin(0, 0, 0, 0),
mPadding(0, 0, 0, 0),
mBorderPadding(0, 0, 0, 0)
{
}
nsStyleSpacing::~nsStyleSpacing(void)
{
}
struct StyleSpacingImpl: public nsStyleSpacing {
StyleSpacingImpl(void)
: nsStyleSpacing()
{}
~StyleSpacingImpl(void)
{}
virtual const nsID& GetID(void)
{ return kStyleSpacingSID; }
virtual void InheritFrom(const nsStyleSpacing& aCopy);
};
void StyleSpacingImpl::InheritFrom(const nsStyleSpacing& aCopy)
{
// spacing values not inherited
}
// --------------------
// nsStyleBorder
//
nsStyleBorder::nsStyleBorder(void)
: mSize(0, 0, 0, 0)
{
mSizeFlag[0] = mSizeFlag[1] = mSizeFlag[2] = mSizeFlag[3] = NS_STYLE_BORDER_WIDTH_LENGTH_VALUE;
mStyle[0] = mStyle[1] = mStyle[2] = mStyle[3] = NS_STYLE_BORDER_STYLE_NONE;
mColor[0] = mColor[1] = mColor[2] = mColor[3] = NS_RGB(0, 0, 0);
}
nsStyleBorder::~nsStyleBorder(void)
{
}
struct StyleBorderImpl: public nsStyleBorder {
StyleBorderImpl(void)
: nsStyleBorder()
{}
~StyleBorderImpl(void)
{}
virtual const nsID& GetID(void)
{ return kStyleBorderSID; }
virtual void InheritFrom(const nsStyleBorder& aCopy);
};
void StyleBorderImpl::InheritFrom(const nsStyleBorder& aCopy)
{
// border values not inherited
}
// --------------------
// nsStyleList
//
struct StyleListImpl: public nsStyleList {
StyleListImpl(void)
{
mListStyleType = NS_STYLE_LIST_STYLE_BASIC;
mListStylePosition = NS_STYLE_LIST_STYLE_POSITION_OUTSIDE;
}
~StyleListImpl(void)
{
}
virtual const nsID& GetID(void)
{ return kStyleListSID; }
virtual void InheritFrom(const nsStyleList& aCopy);
};
void StyleListImpl::InheritFrom(const nsStyleList& aCopy)
{
mListStyleType = aCopy.mListStyleType;
mListStyleImage = aCopy.mListStyleImage;
mListStylePosition = aCopy.mListStylePosition;
}
// --------------------
// nsStyleMolecule
//
nsStyleMolecule::nsStyleMolecule()
{
}
nsStyleMolecule::~nsStyleMolecule()
{
}
struct StyleMoleculeImpl : public nsStyleMolecule {
StyleMoleculeImpl(void)
{}
~StyleMoleculeImpl(void)
{}
virtual const nsID& GetID(void)
{ return kStyleMoleculeSID; }
virtual void InheritFrom(const nsStyleMolecule& aCopy);
private: // These are not allowed
StyleMoleculeImpl(const StyleMoleculeImpl& aOther);
StyleMoleculeImpl& operator=(const StyleMoleculeImpl& aOther);
};
void StyleMoleculeImpl::InheritFrom(const nsStyleMolecule& aCopy)
{
cursor = aCopy.cursor;
direction = aCopy.direction;
textDecoration = aCopy.textDecoration;
textAlign = aCopy.textAlign;
whiteSpace = aCopy.whiteSpace;
// lineHeight = aCopy.lineHeight;
}
//----------------------------------------------------------------------
class StyleContextImpl : public nsIStyleContext {
public:
StyleContextImpl(nsIStyleContext* aParent, nsISupportsArray* aRules, nsIPresContext* aPresContext);
~StyleContextImpl();
void* operator new(size_t sz) {
void* rv = new char[sz];
nsCRT::zero(rv, sz);
return rv;
}
NS_DECL_ISUPPORTS
virtual nsIStyleContext* GetParent(void) const;
virtual nsISupportsArray* GetStyleRules(void) const;
virtual PRBool Equals(const nsIStyleContext* aOther) const;
virtual PRUint32 HashValue(void) const;
virtual nsStyleStruct* GetData(const nsIID& aSID);
virtual void InheritFrom(const StyleContextImpl& aParent);
virtual void PostProcessData(void);
virtual void HackStyleFor(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aFrame);
nsIStyleContext* mParent;
PRUint32 mHashValid: 1;
PRUint32 mHashValue: 31;
nsISupportsArray* mRules;
// the style data...
StyleFontImpl mFont;
StyleColorImpl mColor;
StyleSpacingImpl mSpacing;
StyleBorderImpl mBorder;
StyleListImpl mList;
// xxx backward support hack
StyleMoleculeImpl mMolecule;
};
#ifdef DEBUG_REFS
static PRInt32 gInstanceCount;
#endif
StyleContextImpl::StyleContextImpl(nsIStyleContext* aParent, nsISupportsArray* aRules,
nsIPresContext* aPresContext)
: mParent(aParent), // weak ref
mRules(aRules),
mFont(aPresContext->GetDefaultFont()),
mColor(),
mSpacing(),
mBorder(),
mList(),
mMolecule()
{
NS_INIT_REFCNT();
NS_IF_ADDREF(mRules);
if (nsnull != aParent) {
InheritFrom((StyleContextImpl&)*aParent);
}
if (nsnull != mRules) {
PRInt32 index = mRules->Count();
while (0 < index) {
nsIStyleRule* rule = (nsIStyleRule*)mRules->ElementAt(--index);
rule->MapStyleInto(this, aPresContext);
NS_RELEASE(rule);
}
}
#ifdef DEBUG_REFS
++gInstanceCount;
fprintf(stdout, "%d + StyleContext\n", gInstanceCount);
#endif
}
StyleContextImpl::~StyleContextImpl()
{
mParent = nsnull; // weak ref
NS_IF_RELEASE(mRules);
#ifdef DEBUG_REFS
--gInstanceCount;
fprintf(stdout, "%d - StyleContext\n", gInstanceCount);
#endif
}
NS_IMPL_ISUPPORTS(StyleContextImpl, kIStyleContextIID)
nsIStyleContext* StyleContextImpl::GetParent(void) const
{
NS_IF_ADDREF(mParent);
return mParent;
}
nsISupportsArray* StyleContextImpl::GetStyleRules(void) const
{
NS_IF_ADDREF(mRules);
return mRules;
}
PRBool StyleContextImpl::Equals(const nsIStyleContext* aOther) const
{
PRBool result = PR_TRUE;
const StyleContextImpl* other = (StyleContextImpl*)aOther;
if (other != this) {
if (mParent != other->mParent) {
result = PR_FALSE;
}
else {
if ((nsnull != mRules) && (nsnull != other->mRules)) {
result = mRules->Equals(other->mRules);
}
else {
result = PRBool((nsnull == mRules) && (nsnull == other->mRules));
}
}
}
return result;
}
PRUint32 StyleContextImpl::HashValue(void) const
{
if (0 == mHashValid) {
((StyleContextImpl*)this)->mHashValue = ((nsnull != mParent) ? mParent->HashValue() : 0);
if (nsnull != mRules) {
PRInt32 index = mRules->Count();
while (0 <= --index) {
nsIStyleRule* rule = (nsIStyleRule*)mRules->ElementAt(index);
PRUint32 hash = rule->HashValue();
((StyleContextImpl*)this)->mHashValue ^= (hash & 0x7FFFFFFF);
NS_RELEASE(rule);
}
}
((StyleContextImpl*)this)->mHashValid = 1;
}
return mHashValue;
}
nsStyleStruct* StyleContextImpl::GetData(const nsIID& aSID)
{
if (aSID.Equals(kStyleFontSID)) {
return &mFont;
}
if (aSID.Equals(kStyleColorSID)) {
return &mColor;
}
if (aSID.Equals(kStyleSpacingSID)) {
return &mSpacing;
}
if (aSID.Equals(kStyleBorderSID)) {
return &mBorder;
}
if (aSID.Equals(kStyleListSID)) {
return &mList;
}
if (aSID.Equals(kStyleMoleculeSID)) {
return &mMolecule;
}
return nsnull;
}
void StyleContextImpl::InheritFrom(const StyleContextImpl& aParent)
{
mFont.InheritFrom(aParent.mFont);
mColor.InheritFrom(aParent.mColor);
mSpacing.InheritFrom(aParent.mSpacing);
mBorder.InheritFrom(aParent.mBorder);
mList.InheritFrom(aParent.mList);
mMolecule.InheritFrom(aParent.mMolecule);
}
static void CalcBorderSize(nscoord& aSize, PRUint8 aFlag)
{
static const nscoord kBorderSize[3] = // XXX need real numbers here (this is probably wrong anyway)
{ NS_POINTS_TO_TWIPS_INT(1),
NS_POINTS_TO_TWIPS_INT(3),
NS_POINTS_TO_TWIPS_INT(5) };
if (aFlag < NS_STYLE_BORDER_WIDTH_LENGTH_VALUE) {
aSize = kBorderSize[aFlag];
}
}
void StyleContextImpl::PostProcessData(void)
{
CalcBorderSize(mBorder.mSize.top, mBorder.mSizeFlag[NS_SIDE_TOP]);
CalcBorderSize(mBorder.mSize.right, mBorder.mSizeFlag[NS_SIDE_RIGHT]);
CalcBorderSize(mBorder.mSize.bottom, mBorder.mSizeFlag[NS_SIDE_BOTTOM]);
CalcBorderSize(mBorder.mSize.left, mBorder.mSizeFlag[NS_SIDE_LEFT]);
mSpacing.mBorder = mBorder.mSize;
mSpacing.mBorderPadding = mSpacing.mPadding;
mSpacing.mBorderPadding += mBorder.mSize;
// XXX hack fill in molecule
mMolecule.border = mBorder.mSize;
mMolecule.margin = mSpacing.mMargin;
mMolecule.borderPadding = mSpacing.mBorderPadding;
}
void StyleContextImpl::HackStyleFor(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParentFrame)
{
mMolecule.display = NS_STYLE_DISPLAY_BLOCK;
mMolecule.whiteSpace = NS_STYLE_WHITESPACE_NORMAL;
mMolecule.verticalAlign = NS_STYLE_VERTICAL_ALIGN_BASELINE;
mMolecule.textAlign = NS_STYLE_TEXT_ALIGN_LEFT;
mMolecule.floats = 0;
// XXX If it's a B guy then make it inline
nsIAtom* tag = aContent->GetTag();
nsAutoString buf;
if (tag != nsnull) {
tag->ToString(buf);
NS_RELEASE(tag);
if (buf.EqualsIgnoreCase("B")) {
// float p2t = aPresContext->GetPixelsToTwips();
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("A")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
mMolecule.cursor = NS_STYLE_CURSOR_HAND;
} else if (buf.EqualsIgnoreCase("BR")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
nsString align("CLEAR");
nsString value;
if (eContentAttr_HasValue == aContent->GetAttribute(align, value)) {
if (0 == value.Compare("left", PR_TRUE)) {
mMolecule.clear = NS_STYLE_CLEAR_LEFT;
} else if (0 == value.Compare("right", PR_TRUE)) {
mMolecule.clear = NS_STYLE_CLEAR_RIGHT;
} else if (0 == value.Compare("all", PR_TRUE)) {
mMolecule.clear = NS_STYLE_CLEAR_BOTH;
}
}
} else if (buf.EqualsIgnoreCase("SPACER")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("WBR")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("INPUT")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("I")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("S")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("PRE")) {
mMolecule.whiteSpace = NS_STYLE_WHITESPACE_PRE;
mSpacing.mMargin.top = NS_POINTS_TO_TWIPS_INT(3);
mSpacing.mMargin.bottom = NS_POINTS_TO_TWIPS_INT(3);
} else if (buf.EqualsIgnoreCase("U")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("FONT")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("THREED")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
mFont.mThreeD = 1;
} else if (buf.EqualsIgnoreCase("TT")) {
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
} else if (buf.EqualsIgnoreCase("IMG")) {
float p2t = aPresContext->GetPixelsToTwips();
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
mSpacing.mPadding.top = nscoord(2 * p2t);
mSpacing.mPadding.right = nscoord(2 * p2t);
mSpacing.mPadding.bottom = nscoord(2 * p2t);
mSpacing.mPadding.left = nscoord(2 * p2t);
nsString align("ALIGN");
nsString value;
if (eContentAttr_HasValue == aContent->GetAttribute(align, value)) {
if (0 == value.Compare("left", PR_TRUE)) {
mMolecule.floats = NS_STYLE_FLOAT_LEFT;
} else if (0 == value.Compare("right", PR_TRUE)) {
mMolecule.floats = NS_STYLE_FLOAT_RIGHT;
}
}
} else if (buf.EqualsIgnoreCase("P")) {
nsString align("align");
nsString value;
if (eContentAttr_NotThere != aContent->GetAttribute(align, value)) {
if (0 == value.Compare("center", PR_TRUE)) {
mMolecule.textAlign = NS_STYLE_TEXT_ALIGN_CENTER;
}
if (0 == value.Compare("right", PR_TRUE)) {
mMolecule.textAlign = NS_STYLE_TEXT_ALIGN_RIGHT;
}
}
// mSpacing.mMargin.top = NS_POINTS_TO_TWIPS_INT(2);
// mSpacing.mMargin.bottom = NS_POINTS_TO_TWIPS_INT(2);
} else if (buf.EqualsIgnoreCase("BODY")) {
float p2t = aPresContext->GetPixelsToTwips();
mSpacing.mPadding.top = nscoord(5 * p2t);
mSpacing.mPadding.right = nscoord(5 * p2t);
mSpacing.mPadding.bottom = nscoord(5 * p2t);
mSpacing.mPadding.left = nscoord(5 * p2t);
mBorder.mSize.top = nscoord(1 * p2t);
mBorder.mSize.right = nscoord(1 * p2t);
mBorder.mSize.bottom = nscoord(1 * p2t);
mBorder.mSize.left = nscoord(1 * p2t);
for (int i = 0; i < 4; i++) {
mBorder.mStyle[i] = NS_STYLE_BORDER_STYLE_SOLID;
mBorder.mColor[i] = NS_RGB(0, 255, 0);
}
} else if (buf.EqualsIgnoreCase("LI")) {
mMolecule.display = NS_STYLE_DISPLAY_LIST_ITEM;
} else if (buf.EqualsIgnoreCase("UL") || buf.EqualsIgnoreCase("OL")) {
float p2t = aPresContext->GetPixelsToTwips();
mSpacing.mPadding.left = nscoord(40 * p2t);
mSpacing.mMargin.top = NS_POINTS_TO_TWIPS_INT(5);
mSpacing.mMargin.bottom = NS_POINTS_TO_TWIPS_INT(5);
} else if (buf.EqualsIgnoreCase("TABLE")) { // TABLE
mBorder.mSize.top = NS_POINTS_TO_TWIPS_INT(1);
mBorder.mSize.bottom = NS_POINTS_TO_TWIPS_INT(1);
mBorder.mSize.right = NS_POINTS_TO_TWIPS_INT(1);
mBorder.mSize.left = NS_POINTS_TO_TWIPS_INT(1);
mBorder.mStyle[0] = mBorder.mStyle[1] =
mBorder.mStyle[2] = mBorder.mStyle[3] = NS_STYLE_BORDER_STYLE_SOLID;
mMolecule.fixedWidth = -1;
mMolecule.proportionalWidth = -1;
nsString align("ALIGN");
nsString value;
if (eContentAttr_HasValue == aContent->GetAttribute(align, value)) {
if (0 == value.Compare("left", PR_TRUE)) {
mMolecule.floats = NS_STYLE_FLOAT_LEFT;
} else if (0 == value.Compare("right", PR_TRUE)) {
mMolecule.floats = NS_STYLE_FLOAT_RIGHT;
}
}
} else if (buf.EqualsIgnoreCase("CAPTION")) { // CAPTION
mMolecule.verticalAlign = NS_STYLE_VERTICAL_ALIGN_TOP;
} else if (buf.EqualsIgnoreCase("TBODY")) { // TBODY
mSpacing.mPadding.top = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.bottom = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.right = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.left = NS_POINTS_TO_TWIPS_INT(0);
} else if (buf.EqualsIgnoreCase("TR")) { // TROW
mSpacing.mPadding.top = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.bottom = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.right = NS_POINTS_TO_TWIPS_INT(0);
mSpacing.mPadding.left = NS_POINTS_TO_TWIPS_INT(0);
} else if (buf.EqualsIgnoreCase("TD")) { // TD
float p2t = aPresContext->GetPixelsToTwips();
// Set padding to twenty for testing purposes
int cellPadding = 1;
if (gsDebug==PR_TRUE)
cellPadding = 20;
mMolecule.verticalAlign = NS_STYLE_VERTICAL_ALIGN_MIDDLE;
mSpacing.mPadding.top = NS_POINTS_TO_TWIPS_INT(cellPadding);
mSpacing.mPadding.bottom = NS_POINTS_TO_TWIPS_INT(cellPadding);
mSpacing.mPadding.right = NS_POINTS_TO_TWIPS_INT(cellPadding);
mSpacing.mPadding.left = NS_POINTS_TO_TWIPS_INT(cellPadding);
mBorder.mSize.top = nscoord(1 * p2t);
mBorder.mSize.right = nscoord(1 * p2t);
mBorder.mSize.bottom = nscoord(1 * p2t);
mBorder.mSize.left = nscoord(1 * p2t);
for (int i = 0; i < 4; i++) {
mBorder.mStyle[i] = NS_STYLE_BORDER_STYLE_SOLID;
mBorder.mColor[i] = NS_RGB(128, 128, 128);
}
mMolecule.fixedWidth = -1;
mMolecule.proportionalWidth = -1;
mMolecule.fixedHeight = -1;
mMolecule.proportionalHeight = -1;
} else if (buf.EqualsIgnoreCase("COL")) {
mMolecule.fixedWidth = -1;
mMolecule.proportionalWidth = -1;
mMolecule.fixedHeight = -1;
mMolecule.proportionalHeight = -1;
}
} else {
// It's text (!)
mMolecule.display = NS_STYLE_DISPLAY_INLINE;
mMolecule.cursor = NS_STYLE_CURSOR_IBEAM;
nsIContent* content;
aParentFrame->GetContent(content);
nsIAtom* parentTag = content->GetTag();
parentTag->ToString(buf);
NS_RELEASE(content);
NS_RELEASE(parentTag);
if (buf.EqualsIgnoreCase("B")) {
} else if (buf.EqualsIgnoreCase("A")) {
// This simulates a <PRE><A>text inheritance rule
// Check the parent of the A
nsIFrame* parentParentFrame;
aParentFrame->GetGeometricParent(parentParentFrame);
if (nsnull != parentParentFrame) {
nsIContent* parentParentContent;
parentParentFrame->GetContent(parentParentContent);
nsIAtom* parentParentTag = parentParentContent->GetTag();
parentParentTag->ToString(buf);
NS_RELEASE(parentParentTag);
NS_RELEASE(parentParentContent);
if (buf.EqualsIgnoreCase("PRE")) {
mMolecule.whiteSpace = NS_STYLE_WHITESPACE_PRE;
}
}
} else if (buf.EqualsIgnoreCase("THREED")) {
mFont.mThreeD = 1;
} else if (buf.EqualsIgnoreCase("I")) {
} else if (buf.EqualsIgnoreCase("BLINK")) {
} else if (buf.EqualsIgnoreCase("TT")) {
} else if (buf.EqualsIgnoreCase("S")) {
} else if (buf.EqualsIgnoreCase("U")) {
} else if (buf.EqualsIgnoreCase("PRE")) {
mMolecule.whiteSpace = NS_STYLE_WHITESPACE_PRE;
}
}
#if 0
if ((NS_STYLE_DISPLAY_BLOCK == mMolecule.display) ||
(NS_STYLE_DISPLAY_LIST_ITEM == mMolecule.display)) {
// Always justify text (take that ie)
mMolecule.textAlign = NS_STYLE_TEXT_ALIGN_JUSTIFY;
}
#endif
}
NS_LAYOUT nsresult
NS_NewStyleContext(nsIStyleContext** aInstancePtrResult,
nsISupportsArray* aRules,
nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParentFrame)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIStyleContext* parent = nsnull;
if (nsnull != aParentFrame) {
aParentFrame->GetStyleContext(aPresContext, parent);
NS_ASSERTION(nsnull != parent, "parent frame must have style context");
}
StyleContextImpl* context = new StyleContextImpl(parent, aRules, aPresContext);
NS_IF_RELEASE(parent);
if (nsnull == context) {
return NS_ERROR_OUT_OF_MEMORY;
}
context->HackStyleFor(aPresContext, aContent, aParentFrame);
context->PostProcessData();
return context->QueryInterface(kIStyleContextIID, (void **) aInstancePtrResult);
}