PRBool
nsAttrValue::ParsePositiveIntValue(const nsAString& aString)
{
ResetIfSet();
PRInt32 ec;
PRBool strict;
PRInt32 originalVal = StringToInteger(aString, &strict, &ec);
if (NS_FAILED(ec) || originalVal <= 0) {
return PR_FALSE;
}
SetIntValueAndType(originalVal, eInteger, nsnull);
return PR_TRUE;
}
void
nsAttrValue::SetTo(const nsAString& aValue)
{
ResetIfSet();
nsStringBuffer* buf = GetStringBuffer(aValue);
if (buf) {
SetPtrValueAndType(buf, eStringBase);
}
#ifdef TAINTED
if(aValue.isTainted()==1){
#ifdef DEBUG
printf("This Attribute is tainted! %x \n",this);
#endif
mTainted=1;
mJSStr=aValue.getJSReference();
}
#endif
}
PRBool
nsAttrValue::ParseColor(const nsAString& aString)
{
ResetIfSet();
// FIXME (partially, at least): HTML5's algorithm says we shouldn't do
// the whitespace compression, trimming, or the test for emptiness.
// (I'm a little skeptical that we shouldn't do the whitespace
// trimming; WebKit also does it.)
nsAutoString colorStr(aString);
colorStr.CompressWhitespace(PR_TRUE, PR_TRUE);
if (colorStr.IsEmpty()) {
return PR_FALSE;
}
nscolor color;
// No color names begin with a '#'; in standards mode, all acceptable
// numeric colors do.
if (colorStr.First() == '#') {
nsDependentString withoutHash(colorStr.get() + 1, colorStr.Length() - 1);
if (NS_HexToRGB(withoutHash, &color)) {
SetColorValue(color, aString);
return PR_TRUE;
}
} else {
if (NS_ColorNameToRGB(colorStr, &color)) {
SetColorValue(color, aString);
return PR_TRUE;
}
}
// FIXME (maybe): HTML5 says we should handle system colors. This
// means we probably need another storage type, since we'd need to
// handle dynamic changes. However, I think this is a bad idea:
// http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2010-May/026449.html
// Use NS_LooseHexToRGB as a fallback if nothing above worked.
if (NS_LooseHexToRGB(colorStr, &color)) {
SetColorValue(color, aString);
return PR_TRUE;
}
return PR_FALSE;
}
bool
nsAttrValue::EnsureEmptyMiscContainer()
{
MiscContainer* cont;
if (BaseType() == eOtherBase) {
ResetMiscAtomOrString();
cont = GetMiscContainer();
switch (cont->mType) {
case eCSSStyleRule:
{
NS_RELEASE(cont->mCSSStyleRule);
break;
}
case eAtomArray:
{
delete cont->mAtomArray;
break;
}
case eIntMarginValue:
{
delete cont->mIntMargin;
break;
}
default:
{
break;
}
}
}
else {
ResetIfSet();
cont = new MiscContainer;
NS_ENSURE_TRUE(cont, PR_FALSE);
SetPtrValueAndType(cont, eOtherBase);
}
cont->mType = eColor;
cont->mStringBits = 0;
cont->mColor = 0;
return PR_TRUE;
}
PRBool
nsAttrValue::EnsureEmptyMiscContainer()
{
MiscContainer* cont;
if (BaseType() == eOtherBase) {
cont = GetMiscContainer();
switch (cont->mType) {
case eCSSStyleRule:
{
NS_RELEASE(cont->mCSSStyleRule);
break;
}
case eAtomArray:
{
delete cont->mAtomArray;
break;
}
#ifdef MOZ_SVG
case eSVGValue:
{
NS_RELEASE(cont->mSVGValue);
break;
}
#endif
default:
{
break;
}
}
}
else {
ResetIfSet();
cont = new MiscContainer;
NS_ENSURE_TRUE(cont, PR_FALSE);
SetPtrValueAndType(cont, eOtherBase);
}
cont->mType = eColor;
cont->mColor = 0;
return PR_TRUE;
}
PRBool
nsAttrValue::ParseIntMarginValue(const nsAString& aString)
{
ResetIfSet();
nsIntMargin margins;
if (!nsContentUtils::ParseIntMarginValue(aString, margins))
return PR_FALSE;
if (EnsureEmptyMiscContainer()) {
MiscContainer* cont = GetMiscContainer();
cont->mIntMargin = new nsIntMargin(margins);
cont->mType = eIntMarginValue;
SetMiscAtomOrString(&aString);
return PR_TRUE;
}
return PR_FALSE;
}
PRBool
nsAttrValue::ParseEnumValue(const nsAString& aValue,
const EnumTable* aTable,
PRBool aCaseSensitive,
const EnumTable* aDefaultValue)
{
ResetIfSet();
const EnumTable* tableEntry = aTable;
while (tableEntry->tag) {
if (aCaseSensitive ? aValue.EqualsASCII(tableEntry->tag) :
aValue.LowerCaseEqualsASCII(tableEntry->tag)) {
PRInt32 value = EnumTableEntryToValue(aTable, tableEntry);
PRBool equals = aCaseSensitive || aValue.EqualsASCII(tableEntry->tag);
if (!equals) {
nsAutoString tag;
tag.AssignASCII(tableEntry->tag);
ToUpperCase(tag);
if ((equals = tag.Equals(aValue))) {
value |= NS_ATTRVALUE_ENUMTABLE_VALUE_NEEDS_TO_UPPER;
}
}
SetIntValueAndType(value, eEnum, equals ? nsnull : &aValue);
NS_ASSERTION(GetEnumValue() == tableEntry->value,
"failed to store enum properly");
return PR_TRUE;
}
tableEntry++;
}
if (aDefaultValue) {
NS_PRECONDITION(aTable <= aDefaultValue && aDefaultValue < tableEntry,
"aDefaultValue not inside aTable?");
SetIntValueAndType(EnumTableEntryToValue(aTable, aDefaultValue),
eEnum, &aValue);
return PR_TRUE;
}
return PR_FALSE;
}
PRBool nsAttrValue::ParseDoubleValue(const nsAString& aString)
{
ResetIfSet();
PRInt32 ec;
double val = PromiseFlatString(aString).ToDouble(&ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
if (EnsureEmptyMiscContainer()) {
MiscContainer* cont = GetMiscContainer();
cont->mDoubleValue = val;
cont->mType = eDoubleValue;
nsAutoString serializedFloat;
serializedFloat.AppendFloat(val);
SetMiscAtomOrString(serializedFloat.Equals(aString) ? nsnull : &aString);
return PR_TRUE;
}
return PR_FALSE;
}
PRBool
nsAttrValue::ParseEnumValue(const nsAString& aValue,
const EnumTable* aTable,
PRBool aCaseSensitive)
{
ResetIfSet();
const EnumTable* tableEntry = aTable;
while (tableEntry->tag) {
if (aCaseSensitive ? aValue.EqualsASCII(tableEntry->tag) :
aValue.LowerCaseEqualsASCII(tableEntry->tag)) {
PRInt16 index;
if (!GetEnumTableIndex(aTable, index)) {
return PR_FALSE;
}
PRInt32 value = (tableEntry->value << NS_ATTRVALUE_ENUMTABLEINDEX_BITS) +
index;
PRBool equals = aCaseSensitive || aValue.EqualsASCII(tableEntry->tag);
if (!equals) {
nsAutoString tag;
tag.AssignASCII(tableEntry->tag);
ToUpperCase(tag);
if ((equals = tag.Equals(aValue))) {
value |= NS_ATTRVALUE_ENUMTABLE_VALUE_NEEDS_TO_UPPER;
}
}
SetIntValueAndType(value, eEnum, equals ? nsnull : &aValue);
NS_ASSERTION(GetEnumValue() == tableEntry->value,
"failed to store enum properly");
return PR_TRUE;
}
tableEntry++;
}
return PR_FALSE;
}
PRBool
nsAttrValue::ParseIntWithBounds(const nsAString& aString,
PRInt32 aMin, PRInt32 aMax)
{
NS_PRECONDITION(aMin < aMax &&
aMin >= NS_ATTRVALUE_INTEGERTYPE_MINVALUE &&
aMax <= NS_ATTRVALUE_INTEGERTYPE_MAXVALUE, "bad boundaries");
ResetIfSet();
PRInt32 ec;
PRInt32 val = PromiseFlatString(aString).ToInteger(&ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
val = PR_MAX(val, aMin);
val = PR_MIN(val, aMax);
SetIntValueAndType(val, eInteger);
return PR_TRUE;
}
PRBool
nsAttrValue::ParseIntWithBounds(const nsAString& aString,
PRInt32 aMin, PRInt32 aMax)
{
NS_PRECONDITION(aMin < aMax, "bad boundaries");
ResetIfSet();
PRInt32 ec;
PRBool strict;
PRInt32 originalVal = StringToInteger(aString, &strict, &ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
PRInt32 val = NS_MAX(originalVal, aMin);
val = NS_MIN(val, aMax);
strict = strict && (originalVal == val);
SetIntValueAndType(val, eInteger, strict ? nsnull : &aString);
return PR_TRUE;
}
PRBool
nsAttrValue::ParseEnumValue(const nsAString& aValue,
const EnumTable* aTable,
PRBool aCaseSensitive)
{
ResetIfSet();
while (aTable->tag) {
if (aCaseSensitive ? aValue.EqualsASCII(aTable->tag) :
aValue.LowerCaseEqualsASCII(aTable->tag)) {
// Find index of EnumTable
PRInt16 index = sEnumTableArray->IndexOf(aTable);
if (index < 0) {
index = sEnumTableArray->Length();
NS_ASSERTION(index <= NS_ATTRVALUE_ENUMTABLEINDEX_MAXVALUE,
"too many enum tables");
if (!sEnumTableArray->AppendElement(aTable)) {
return PR_FALSE;
}
}
PRInt32 value = (aTable->value << NS_ATTRVALUE_ENUMTABLEINDEX_BITS) +
index;
SetIntValueAndType(value, eEnum);
NS_ASSERTION(GetEnumValue() == aTable->value,
"failed to store enum properly");
return PR_TRUE;
}
aTable++;
}
return PR_FALSE;
}
void
nsAttrValue::SetTo(const nsAttrValue& aOther)
{
switch (aOther.BaseType()) {
case eStringBase:
{
ResetIfSet();
nsStringBuffer* str = static_cast<nsStringBuffer*>(aOther.GetPtr());
if (str) {
str->AddRef();
SetPtrValueAndType(str, eStringBase);
}
#ifdef TAINTED
if(aOther.isTainted()==1){
mTainted=1;
mJSStr=aOther.mJSStr;
}
#endif
return;
}
case eOtherBase:
{
break;
}
case eAtomBase:
{
ResetIfSet();
nsIAtom* atom = aOther.GetAtomValue();
NS_ADDREF(atom);
SetPtrValueAndType(atom, eAtomBase);
return;
}
case eIntegerBase:
{
ResetIfSet();
mBits = aOther.mBits;
return;
}
}
MiscContainer* otherCont = aOther.GetMiscContainer();
if (!EnsureEmptyMiscContainer()) {
return;
}
MiscContainer* cont = GetMiscContainer();
switch (otherCont->mType) {
case eInteger:
{
cont->mInteger = otherCont->mInteger;
break;
}
case eEnum:
{
cont->mEnumValue = otherCont->mEnumValue;
break;
}
case ePercent:
{
cont->mPercent = otherCont->mPercent;
break;
}
case eColor:
{
cont->mColor = otherCont->mColor;
break;
}
case eCSSStyleRule:
{
NS_ADDREF(cont->mCSSStyleRule = otherCont->mCSSStyleRule);
break;
}
case eAtomArray:
{
if (!EnsureEmptyAtomArray() ||
!GetAtomArrayValue()->AppendElements(*otherCont->mAtomArray)) {
Reset();
return;
}
break;
}
case eSVGValue:
{
NS_ADDREF(cont->mSVGValue = otherCont->mSVGValue);
break;
}
case eDoubleValue:
{
cont->mDoubleValue = otherCont->mDoubleValue;
break;
}
case eIntMarginValue:
{
if (otherCont->mIntMargin)
cont->mIntMargin = new nsIntMargin(*otherCont->mIntMargin);
break;
}
default:
{
NS_NOTREACHED("unknown type stored in MiscContainer");
break;
}
}
void* otherPtr = MISC_STR_PTR(otherCont);
if (otherPtr) {
if (static_cast<ValueBaseType>(otherCont->mStringBits & NS_ATTRVALUE_BASETYPE_MASK) ==
eStringBase) {
static_cast<nsStringBuffer*>(otherPtr)->AddRef();
} else {
static_cast<nsIAtom*>(otherPtr)->AddRef();
}
cont->mStringBits = otherCont->mStringBits;
}
// Note, set mType after switch-case, otherwise EnsureEmptyAtomArray doesn't
// work correctly.
cont->mType = otherCont->mType;
}
nsAttrValue::~nsAttrValue()
{
ResetIfSet();
}
void
nsAttrValue::ParseAtomArray(const nsAString& aValue)
{
nsAString::const_iterator iter, end;
aValue.BeginReading(iter);
aValue.EndReading(end);
// skip initial whitespace
while (iter != end && nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
if (iter == end) {
ResetIfSet();
return;
}
nsAString::const_iterator start(iter);
// get first - and often only - atom
do {
++iter;
} while (iter != end && !nsCRT::IsAsciiSpace(*iter));
nsCOMPtr<nsIAtom> classAtom = do_GetAtom(Substring(start, iter));
if (!classAtom) {
Reset();
return;
}
// skip whitespace
while (iter != end && nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
if (iter == end) {
// we only found one classname so don't bother storing a list
ResetIfSet();
nsIAtom* atom = nsnull;
classAtom.swap(atom);
SetPtrValueAndType(atom, eAtomBase);
return;
}
if (!EnsureEmptyAtomArray()) {
return;
}
nsCOMArray<nsIAtom>* array = GetAtomArrayValue();
if (!array->AppendObject(classAtom)) {
Reset();
return;
}
// parse the rest of the classnames
do {
start = iter;
do {
++iter;
} while (iter != end && !nsCRT::IsAsciiSpace(*iter));
classAtom = do_GetAtom(Substring(start, iter));
if (!array->AppendObject(classAtom)) {
Reset();
return;
}
// skip whitespace
while (iter != end && nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
} while (iter != end);
return;
}
void
nsAttrValue::SetTo(PRInt16 aInt)
{
ResetIfSet();
SetIntValueAndType(aInt, eInteger, nsnull);
}
void
nsAttrValue::ParseAtomArray(const nsAString& aValue)
{
nsAString::const_iterator iter, end;
aValue.BeginReading(iter);
aValue.EndReading(end);
PRBool hasSpace = PR_FALSE;
// skip initial whitespace
while (iter != end && nsContentUtils::IsHTMLWhitespace(*iter)) {
hasSpace = PR_TRUE;
++iter;
}
if (iter == end) {
SetTo(aValue);
return;
}
nsAString::const_iterator start(iter);
// get first - and often only - atom
do {
++iter;
} while (iter != end && !nsContentUtils::IsHTMLWhitespace(*iter));
nsCOMPtr<nsIAtom> classAtom = do_GetAtom(Substring(start, iter));
if (!classAtom) {
Reset();
return;
}
// skip whitespace
while (iter != end && nsContentUtils::IsHTMLWhitespace(*iter)) {
hasSpace = PR_TRUE;
++iter;
}
if (iter == end && !hasSpace) {
// we only found one classname and there was no whitespace so
// don't bother storing a list
ResetIfSet();
nsIAtom* atom = nsnull;
classAtom.swap(atom);
SetPtrValueAndType(atom, eAtomBase);
return;
}
if (!EnsureEmptyAtomArray()) {
return;
}
AtomArray* array = GetAtomArrayValue();
if (!array->AppendElement(classAtom)) {
Reset();
return;
}
// parse the rest of the classnames
while (iter != end) {
start = iter;
do {
++iter;
} while (iter != end && !nsContentUtils::IsHTMLWhitespace(*iter));
classAtom = do_GetAtom(Substring(start, iter));
if (!array->AppendElement(classAtom)) {
Reset();
return;
}
// skip whitespace
while (iter != end && nsContentUtils::IsHTMLWhitespace(*iter)) {
++iter;
}
}
SetMiscAtomOrString(&aValue);
return;
}
void
nsAttrValue::SetTo(const nsAttrValue& aOther)
{
switch (aOther.BaseType()) {
case eStringBase:
{
ResetIfSet();
nsStringBuffer* str = static_cast<nsStringBuffer*>(aOther.GetPtr());
if (str) {
str->AddRef();
SetPtrValueAndType(str, eStringBase);
}
return;
}
case eOtherBase:
{
break;
}
case eAtomBase:
{
ResetIfSet();
nsIAtom* atom = aOther.GetAtomValue();
NS_ADDREF(atom);
SetPtrValueAndType(atom, eAtomBase);
return;
}
case eIntegerBase:
{
ResetIfSet();
mBits = aOther.mBits;
return;
}
}
MiscContainer* otherCont = aOther.GetMiscContainer();
switch (otherCont->mType) {
case eColor:
{
if (EnsureEmptyMiscContainer()) {
MiscContainer* cont = GetMiscContainer();
cont->mColor = otherCont->mColor;
cont->mType = eColor;
}
break;
}
case eCSSStyleRule:
{
SetTo(otherCont->mCSSStyleRule);
break;
}
case eAtomArray:
{
if (!EnsureEmptyAtomArray() ||
!GetAtomArrayValue()->AppendObjects(*otherCont->mAtomArray)) {
Reset();
}
break;
}
#ifdef MOZ_SVG
case eSVGValue:
{
SetTo(otherCont->mSVGValue);
}
#endif
default:
{
NS_NOTREACHED("unknown type stored in MiscContainer");
break;
}
}
}
