// static
Modifiers
UIEvent::ComputeModifierState(const nsAString& aModifiersList)
{
if (aModifiersList.IsEmpty()) {
return 0;
}
// Be careful about the performance. If aModifiersList is too long,
// parsing it needs too long time.
// XXX Should we abort if aModifiersList is too long?
Modifiers modifiers = 0;
nsAString::const_iterator listStart, listEnd;
aModifiersList.BeginReading(listStart);
aModifiersList.EndReading(listEnd);
for (uint32_t i = 0; i < ArrayLength(kPairs); i++) {
nsAString::const_iterator start(listStart), end(listEnd);
if (!FindInReadable(NS_ConvertASCIItoUTF16(kPairs[i].name), start, end)) {
continue;
}
if ((start != listStart && !NS_IsAsciiWhitespace(*(--start))) ||
(end != listEnd && !NS_IsAsciiWhitespace(*(end)))) {
continue;
}
modifiers |= kPairs[i].modifier;
}
return modifiers;
}
NS_INTERFACE_MAP_END
/* Implementation */
static nsresult
GetValueFromString(const nsAString &aValueAsString,
bool aPercentagesAllowed,
float *aValue)
{
NS_ConvertUTF16toUTF8 value(aValueAsString);
const char *str = value.get();
if (NS_IsAsciiWhitespace(*str))
return NS_ERROR_DOM_SYNTAX_ERR;
char *rest;
*aValue = float(PR_strtod(str, &rest));
if (rest == str || !NS_finite(*aValue)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
if (*rest == '%' && aPercentagesAllowed) {
*aValue /= 100;
++rest;
}
if (*rest == '\0') {
return NS_OK;
}
return NS_ERROR_DOM_SYNTAX_ERR;
}
const nsDependentSubstring
IDRefsIterator::NextID()
{
for (; mCurrIdx < mIDs.Length(); mCurrIdx++) {
if (!NS_IsAsciiWhitespace(mIDs[mCurrIdx]))
break;
}
if (mCurrIdx >= mIDs.Length())
return nsDependentSubstring();
nsAString::index_type idStartIdx = mCurrIdx;
while (++mCurrIdx < mIDs.Length()) {
if (NS_IsAsciiWhitespace(mIDs[mCurrIdx]))
break;
}
return Substring(mIDs, idStartIdx, mCurrIdx++ - idStartIdx);
}
nsresult
nsSVGElement::ParseIntegerOptionalInteger(const nsAString& aValue,
PRUint32 aIndex1, PRUint32 aIndex2)
{
NS_ConvertUTF16toUTF8 value(aValue);
const char *str = value.get();
if (NS_IsAsciiWhitespace(*str))
return NS_ERROR_FAILURE;
char *rest;
PRInt32 x = strtol(str, &rest, 10);
PRInt32 y = x;
if (str == rest) {
//first value was illformed
return NS_ERROR_FAILURE;
}
if (*rest != '\0') {
while (NS_IsAsciiWhitespace(*rest)) {
++rest;
}
if (*rest == ',') {
++rest;
}
y = strtol(rest, &rest, 10);
if (*rest != '\0') {
//second value was illformed or there was trailing content
return NS_ERROR_FAILURE;
}
}
IntegerAttributesInfo integerInfo = GetIntegerInfo();
integerInfo.mIntegers[aIndex1].SetBaseValue(x, this, PR_FALSE);
integerInfo.mIntegers[aIndex2].SetBaseValue(y, this, PR_FALSE);
return NS_OK;
}
void
CompressWhitespace(nsAString& aString)
{
char16_t* start;
uint32_t len = NS_StringGetMutableData(aString, UINT32_MAX, &start);
char16_t* end = start + len;
char16_t* from = start;
char16_t* to = start;
// Skip any leading whitespace
while (from < end && NS_IsAsciiWhitespace(*from)) {
from++;
}
while (from < end) {
char16_t theChar = *from++;
if (NS_IsAsciiWhitespace(theChar)) {
// We found a whitespace char, so skip over any more
while (from < end && NS_IsAsciiWhitespace(*from)) {
from++;
}
// Turn all whitespace into spaces
theChar = ' ';
}
*to++ = theChar;
}
// Drop any trailing space
if (to > start && to[-1] == ' ') {
to--;
}
// Re-terminate the string
*to = '\0';
// Set the new length
aString.SetLength(to - start);
}
nsresult
nsSVGElement::ParseNumberOptionalNumber(const nsAString& aValue,
PRUint32 aIndex1, PRUint32 aIndex2)
{
NS_ConvertUTF16toUTF8 value(aValue);
const char *str = value.get();
if (NS_IsAsciiWhitespace(*str))
return NS_ERROR_FAILURE;
char *rest;
float x = float(PR_strtod(str, &rest));
float y = x;
if (str == rest || !NS_FloatIsFinite(x)) {
//first value was illformed
return NS_ERROR_FAILURE;
}
if (*rest != '\0') {
while (NS_IsAsciiWhitespace(*rest)) {
++rest;
}
if (*rest == ',') {
++rest;
}
y = float(PR_strtod(rest, &rest));
if (*rest != '\0' || !NS_FloatIsFinite(y)) {
//second value was illformed or there was trailing content
return NS_ERROR_FAILURE;
}
}
NumberAttributesInfo numberInfo = GetNumberInfo();
numberInfo.mNumbers[aIndex1].SetBaseValue(x, this, PR_FALSE);
numberInfo.mNumbers[aIndex2].SetBaseValue(y, this, PR_FALSE);
return NS_OK;
}
void
CompressWhitespace(nsAString& aString)
{
aString.Trim(" \n\t\r");
PRUnichar *start;
PRUint32 len = NS_StringGetMutableData(aString, PR_UINT32_MAX, &start);
PRUnichar *end = start + len;
for (PRUnichar *cur = start; cur < end; ++cur) {
if (!NS_IsAsciiWhitespace(*cur))
continue;
*cur = ' ';
PRUnichar *wend;
for (wend = cur + 1; wend < end && NS_IsAsciiWhitespace(*wend); ++wend) {
// nothing to do but loop
}
if (wend == cur + 1)
continue;
PRUint32 wlen = wend - cur - 1;
// fix "end"
end -= wlen;
// move everything forwards a bit
for (PRUnichar *m = cur + 1; m < end; ++m) {
*m = *(m + wlen);
}
}
// re-terminate
*end = '\0';
// Set the new length.
aString.SetLength(end - start);
}
static nsresult
GetValueFromString(const nsAString &aValueAsString,
float *aValue,
PRUint16 *aUnitType)
{
NS_ConvertUTF16toUTF8 value(aValueAsString);
const char *str = value.get();
if (NS_IsAsciiWhitespace(*str))
return NS_ERROR_DOM_SYNTAX_ERR;
char *rest;
*aValue = float(PR_strtod(str, &rest));
if (rest != str && NS_FloatIsFinite(*aValue)) {
*aUnitType = GetUnitTypeForString(rest);
if (IsValidUnitType(*aUnitType)) {
return NS_OK;
}
}
return NS_ERROR_DOM_SYNTAX_ERR;
}
NS_INTERFACE_MAP_END
/* Implementation */
nsresult
nsSVGNumber2::SetBaseValueString(const nsAString &aValueAsString,
nsSVGElement *aSVGElement,
PRBool aDoSetAttr)
{
NS_ConvertUTF16toUTF8 value(aValueAsString);
const char *str = value.get();
if (NS_IsAsciiWhitespace(*str))
return NS_ERROR_FAILURE;
char *rest;
float val = float(PR_strtod(str, &rest));
if (rest == str || *rest != '\0') {
return NS_ERROR_FAILURE;
}
mBaseVal = mAnimVal = val;
return NS_OK;
}
