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Issue #1384 - Match standard for colSpan/rowSpan

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HTML standardizes proper behavior of colSpan and rowSpan:

The main thing is that getting the .rowSpan and .colSpan IDL properties will now return the actual clamped value that we use.
This commit is contained in:
win7-7 2020-02-03 16:59:23 +02:00 • committed by Roy Tam
commit 51f5cb3576
6 changed files with 59 additions and 19 deletions
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34
dom/base/nsAttrValue.cpp
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@ -1526,6 +1526,40 @@ nsAttrValue::ParseIntWithFallback(const nsAString& aString, int32_t aDefault,
SetIntValueAndType(val, eInteger, nonStrict ? &aString : nullptr);
}
void
nsAttrValue::ParseClampedNonNegativeInt(const nsAString& aString,
int32_t aDefault, int32_t aMin,
int32_t aMax)
{
ResetIfSet();
nsContentUtils::ParseHTMLIntegerResultFlags result;
int32_t val = nsContentUtils::ParseHTMLInteger(aString, &result);
bool nonStrict = (result & nsContentUtils::eParseHTMLInteger_IsPercent) ||
(result & nsContentUtils::eParseHTMLInteger_NonStandard) ||
(result & nsContentUtils::eParseHTMLInteger_DidNotConsumeAllInput);
if (result & nsContentUtils::eParseHTMLInteger_ErrorOverflow) {
if (result & nsContentUtils::eParseHTMLInteger_Negative) {
val = aDefault;
} else {
val = aMax;
}
nonStrict = true;
} else if ((result & nsContentUtils::eParseHTMLInteger_Error) || val < 0) {
val = aDefault;
nonStrict = true;
} else if (val < aMin) {
val = aMin;
nonStrict = true;
} else if (val > aMax) {
val = aMax;
nonStrict = true;
}
SetIntValueAndType(val, eInteger, nonStrict ? &aString : nullptr);
}
bool
nsAttrValue::ParseNonNegativeIntValue(const nsAString& aString)
{