/usr/include/thunderbird/nsStyleUtil.h is in thunderbird-dev 1:24.4.0+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsStyleUtil_h___
#define nsStyleUtil_h___
#include "nsCoord.h"
#include "nsCSSProperty.h"
#include "gfxFontFeatures.h"
#include "nsIPrincipal.h"
#include "nsSubstring.h"
class nsCSSValue;
class nsStringComparator;
class nsIContent;
struct gfxFontFeature;
class nsCSSValueList;
template <class E> class nsTArray;
// Style utility functions
class nsStyleUtil {
public:
static bool DashMatchCompare(const nsAString& aAttributeValue,
const nsAString& aSelectorValue,
const nsStringComparator& aComparator);
// Append a quoted (with 'quoteChar') and escaped version of aString
// to aResult. 'quoteChar' must be ' or ".
static void AppendEscapedCSSString(const nsAString& aString,
nsAString& aResult,
PRUnichar quoteChar = '"');
// Append the identifier given by |aIdent| to |aResult|, with
// appropriate escaping so that it can be reparsed to the same
// identifier.
static void AppendEscapedCSSIdent(const nsAString& aIdent,
nsAString& aResult);
// Append a bitmask-valued property's value(s) (space-separated) to aResult.
static void AppendBitmaskCSSValue(nsCSSProperty aProperty,
int32_t aMaskedValue,
int32_t aFirstMask,
int32_t aLastMask,
nsAString& aResult);
static void AppendPaintOrderValue(uint8_t aValue, nsAString& aResult);
static void AppendFontFeatureSettings(const nsTArray<gfxFontFeature>& aFeatures,
nsAString& aResult);
static void AppendFontFeatureSettings(const nsCSSValue& src,
nsAString& aResult);
// convert bitmask value to keyword name for a functional alternate
static void GetFunctionalAlternatesName(int32_t aFeature,
nsAString& aFeatureName);
// Append functional font-variant-alternates values to string
static void
SerializeFunctionalAlternates(const nsTArray<gfxAlternateValue>& aAlternates,
nsAString& aResult);
// List of functional font-variant-alternates values to feature/value pairs
static void
ComputeFunctionalAlternates(const nsCSSValueList* aList,
nsTArray<gfxAlternateValue>& aAlternateValues);
/*
* Convert an author-provided floating point number to an integer (0
* ... 255) appropriate for use in the alpha component of a color.
*/
static uint8_t FloatToColorComponent(float aAlpha)
{
NS_ASSERTION(0.0 <= aAlpha && aAlpha <= 1.0, "out of range");
return NSToIntRound(aAlpha * 255);
}
/*
* Convert the alpha component of an nscolor (0 ... 255) to the
* floating point number with the least accurate *decimal*
* representation that is converted to that color.
*
* Should be used only by serialization code.
*/
static float ColorComponentToFloat(uint8_t aAlpha);
/*
* Does this child count as significant for selector matching?
*/
static bool IsSignificantChild(nsIContent* aChild,
bool aTextIsSignificant,
bool aWhitespaceIsSignificant);
/*
* Does this principal have a CSP that blocks the application of
* inline styles ? Returns false if application of the style should
* be blocked.
*
* Note that the principal passed in here needs to be the principal
* of the document, not of the style sheet. The document's principal
* is where any Content Security Policy that should be used to
* block or allow inline styles will be located.
*/
static bool CSPAllowsInlineStyle(nsIPrincipal* aPrincipal,
nsIURI* aSourceURI,
uint32_t aLineNumber,
const nsSubstring& aStyleText,
nsresult* aRv);
};
#endif /* nsStyleUtil_h___ */
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