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Bug 773296 - Part 14: Add an nsCSSProps::IsInherited function. r=dbaron

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Add a helper function to nsCSSProps to look up whether a given
nsCSSProperty lives in a style struct for inherited properties.
This commit is contained in:
Cameron McCormack 2013-12-12 13:09:43 +11:00
parent ee52e01c4a
commit 83df25c044
2 changed files with 12 additions and 0 deletions
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9
layout/style/nsCSSProps.cpp
View File

@ -349,6 +349,15 @@ nsCSSProps::ReleaseTable(void)
// Length of the "var-" custom property name prefix.
#define VAR_PREFIX_LENGTH 4
/* static */ bool
nsCSSProps::IsInherited(nsCSSProperty aProperty)
{
MOZ_ASSERT(!IsShorthand(aProperty));
nsStyleStructID sid = kSIDTable[aProperty];
return nsCachedStyleData::IsInherited(sid);
}
/* static */ bool
nsCSSProps::IsCustomPropertyName(const nsACString& aProperty)
{

3
layout/style/nsCSSProps.h
View File

@ -270,6 +270,9 @@ public:
return (aProperty >= eCSSProperty_COUNT_no_shorthands);
}
// Must be given a longhand property.
static bool IsInherited(nsCSSProperty aProperty);
// Same but for @font-face descriptors
static nsCSSFontDesc LookupFontDesc(const nsAString& aProperty);
static nsCSSFontDesc LookupFontDesc(const nsACString& aProperty);