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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef StyleBuilderConverter_h
#define StyleBuilderConverter_h
#include "core/css/CSSIdentifierValue.h"
#include "core/css/CSSStringValue.h"
#include "core/css/CSSValue.h"
#include "core/css/CSSValueList.h"
#include "core/css/CSSValuePair.h"
#include "core/css/resolver/StyleResolverState.h"
#include "core/style/QuotesData.h"
#include "core/style/ShadowList.h"
#include "core/style/StyleOffsetRotation.h"
#include "core/style/StyleReflection.h"
#include "core/style/StyleScrollSnapData.h"
#include "core/style/TransformOrigin.h"
#include "platform/LengthSize.h"
#include "platform/fonts/FontDescription.h"
#include "platform/text/TabSize.h"
#include "platform/transforms/Rotation.h"
#include "wtf/Allocator.h"
namespace blink {
class ClipPathOperation;
class RotateTransformOperation;
class ScaleTransformOperation;
class StylePath;
class TextSizeAdjust;
class TranslateTransformOperation;
// Note that we assume the parser only allows valid CSSValue types.
class StyleBuilderConverter {
STATIC_ONLY(StyleBuilderConverter);
public:
static PassRefPtr<StyleReflection> convertBoxReflect(StyleResolverState&,
const CSSValue&);
static AtomicString convertFragmentIdentifier(StyleResolverState&,
const CSSValue&);
static Color convertColor(StyleResolverState&,
const CSSValue&,
bool forVisitedLink = false);
template <typename T>
static T convertComputedLength(StyleResolverState&, const CSSValue&);
static LengthBox convertClip(StyleResolverState&, const CSSValue&);
static PassRefPtr<ClipPathOperation> convertClipPath(StyleResolverState&,
const CSSValue&);
static FilterOperations convertFilterOperations(StyleResolverState&,
const CSSValue&);
template <typename T>
static T convertFlags(StyleResolverState&, const CSSValue&);
static FontDescription::FamilyDescription convertFontFamily(
StyleResolverState&,
const CSSValue&);
static PassRefPtr<FontFeatureSettings> convertFontFeatureSettings(
StyleResolverState&,
const CSSValue&);
static PassRefPtr<FontVariationSettings> convertFontVariationSettings(
StyleResolverState&,
const CSSValue&);
static FontDescription::Size convertFontSize(StyleResolverState&,
const CSSValue&);
static float convertFontSizeAdjust(StyleResolverState&, const CSSValue&);
static FontWeight convertFontWeight(StyleResolverState&, const CSSValue&);
static FontDescription::FontVariantCaps convertFontVariantCaps(
StyleResolverState&,
const CSSValue&);
static FontDescription::VariantLigatures convertFontVariantLigatures(
StyleResolverState&,
const CSSValue&);
static FontVariantNumeric convertFontVariantNumeric(StyleResolverState&,
const CSSValue&);
static StyleSelfAlignmentData convertSelfOrDefaultAlignmentData(
StyleResolverState&,
const CSSValue&);
static StyleContentAlignmentData convertContentAlignmentData(
StyleResolverState&,
const CSSValue&);
static GridAutoFlow convertGridAutoFlow(StyleResolverState&, const CSSValue&);
static GridPosition convertGridPosition(StyleResolverState&, const CSSValue&);
static GridTrackSize convertGridTrackSize(StyleResolverState&,
const CSSValue&);
static Vector<GridTrackSize> convertGridTrackSizeList(StyleResolverState&,
const CSSValue&);
template <typename T>
static T convertLineWidth(StyleResolverState&, const CSSValue&);
static Length convertLength(const StyleResolverState&, const CSSValue&);
static UnzoomedLength convertUnzoomedLength(const StyleResolverState&,
const CSSValue&);
static Length convertLengthOrAuto(const StyleResolverState&, const CSSValue&);
static Length convertLengthSizing(StyleResolverState&, const CSSValue&);
static Length convertLengthMaxSizing(StyleResolverState&, const CSSValue&);
static TabSize convertLengthOrTabSpaces(StyleResolverState&, const CSSValue&);
static Length convertLineHeight(StyleResolverState&, const CSSValue&);
static float convertNumberOrPercentage(StyleResolverState&, const CSSValue&);
static StyleOffsetRotation convertOffsetRotate(StyleResolverState&,
const CSSValue&);
static LengthPoint convertPosition(StyleResolverState&, const CSSValue&);
static LengthPoint convertPositionOrAuto(StyleResolverState&,
const CSSValue&);
static float convertPerspective(StyleResolverState&, const CSSValue&);
static Length convertQuirkyLength(StyleResolverState&, const CSSValue&);
static PassRefPtr<QuotesData> convertQuotes(StyleResolverState&,
const CSSValue&);
static LengthSize convertRadius(StyleResolverState&, const CSSValue&);
static EPaintOrder convertPaintOrder(StyleResolverState&, const CSSValue&);
static ShadowData convertShadow(StyleResolverState&, const CSSValue&);
static PassRefPtr<ShadowList> convertShadowList(StyleResolverState&,
const CSSValue&);
static ShapeValue* convertShapeValue(StyleResolverState&, const CSSValue&);
static float convertSpacing(StyleResolverState&, const CSSValue&);
template <CSSValueID IdForNone>
static AtomicString convertString(StyleResolverState&, const CSSValue&);
static PassRefPtr<SVGDashArray> convertStrokeDasharray(StyleResolverState&,
const CSSValue&);
static StyleColor convertStyleColor(StyleResolverState&,
const CSSValue&,
bool forVisitedLink = false);
static StyleAutoColor convertStyleAutoColor(StyleResolverState&,
const CSSValue&,
bool forVisitedLink = false);
static float convertTextStrokeWidth(StyleResolverState&, const CSSValue&);
static TextSizeAdjust convertTextSizeAdjust(StyleResolverState&,
const CSSValue&);
static TransformOperations convertTransformOperations(StyleResolverState&,
const CSSValue&);
static TransformOrigin convertTransformOrigin(StyleResolverState&,
const CSSValue&);
static void convertGridTrackList(const CSSValue&,
Vector<GridTrackSize>&,
NamedGridLinesMap&,
OrderedNamedGridLines&,
Vector<GridTrackSize>& autoRepeatTrackSizes,
NamedGridLinesMap&,
OrderedNamedGridLines&,
size_t& autoRepeatInsertionPoint,
AutoRepeatType&,
StyleResolverState&);
static void createImplicitNamedGridLinesFromGridArea(
const NamedGridAreaMap&,
NamedGridLinesMap&,
GridTrackSizingDirection);
static void convertOrderedNamedGridLinesMapToNamedGridLinesMap(
const OrderedNamedGridLines&,
NamedGridLinesMap&);
static ScrollSnapPoints convertSnapPoints(StyleResolverState&,
const CSSValue&);
static Vector<LengthPoint> convertSnapCoordinates(StyleResolverState&,
const CSSValue&);
static LengthPoint convertSnapDestination(StyleResolverState&,
const CSSValue&);
static PassRefPtr<TranslateTransformOperation> convertTranslate(
StyleResolverState&,
const CSSValue&);
static PassRefPtr<RotateTransformOperation> convertRotate(StyleResolverState&,
const CSSValue&);
static PassRefPtr<ScaleTransformOperation> convertScale(StyleResolverState&,
const CSSValue&);
static RespectImageOrientationEnum convertImageOrientation(
StyleResolverState&,
const CSSValue&);
static PassRefPtr<StylePath> convertPathOrNone(StyleResolverState&,
const CSSValue&);
static StyleOffsetRotation convertOffsetRotate(const CSSValue&);
template <CSSValueID cssValueFor0, CSSValueID cssValueFor100>
static Length convertPositionLength(StyleResolverState&, const CSSValue&);
static Rotation convertRotation(const CSSValue&);
static const CSSValue& convertRegisteredPropertyInitialValue(const CSSValue&);
static const CSSValue& convertRegisteredPropertyValue(
const StyleResolverState&,
const CSSValue&);
};
template <typename T>
T StyleBuilderConverter::convertComputedLength(StyleResolverState& state,
const CSSValue& value) {
return toCSSPrimitiveValue(value).computeLength<T>(
state.cssToLengthConversionData());
}
template <typename T>
T StyleBuilderConverter::convertFlags(StyleResolverState& state,
const CSSValue& value) {
T flags = static_cast<T>(0);
if (value.isIdentifierValue() &&
toCSSIdentifierValue(value).getValueID() == CSSValueNone)
return flags;
for (auto& flagValue : toCSSValueList(value))
flags |= toCSSIdentifierValue(*flagValue).convertTo<T>();
return flags;
}
template <typename T>
T StyleBuilderConverter::convertLineWidth(StyleResolverState& state,
const CSSValue& value) {
if (value.isIdentifierValue()) {
CSSValueID valueID = toCSSIdentifierValue(value).getValueID();
if (valueID == CSSValueThin)
return 1;
if (valueID == CSSValueMedium)
return 3;
if (valueID == CSSValueThick)
return 5;
NOTREACHED();
return 0;
}
const CSSPrimitiveValue& primitiveValue = toCSSPrimitiveValue(value);
// FIXME: We are moving to use the full page zoom implementation to handle
// high-dpi. In that case specyfing a border-width of less than 1px would
// result in a border that is one device pixel thick. With this change that
// would instead be rounded up to 2 device pixels. Consider clamping it to
// device pixels or zoom adjusted CSS pixels instead of raw CSS pixels.
// Reference crbug.com/485650 and crbug.com/382483
double result =
primitiveValue.computeLength<double>(state.cssToLengthConversionData());
if (result > 0.0 && result < 1.0)
return 1.0;
return clampTo<T>(roundForImpreciseConversion<T>(result),
defaultMinimumForClamp<T>(), defaultMaximumForClamp<T>());
}
template <CSSValueID cssValueFor0, CSSValueID cssValueFor100>
Length StyleBuilderConverter::convertPositionLength(StyleResolverState& state,
const CSSValue& value) {
if (value.isValuePair()) {
const CSSValuePair& pair = toCSSValuePair(value);
Length length = StyleBuilderConverter::convertLength(state, pair.second());
if (toCSSIdentifierValue(pair.first()).getValueID() == cssValueFor0)
return length;
DCHECK_EQ(toCSSIdentifierValue(pair.first()).getValueID(), cssValueFor100);
return length.subtractFromOneHundredPercent();
}
if (value.isIdentifierValue()) {
switch (toCSSIdentifierValue(value).getValueID()) {
case cssValueFor0:
return Length(0, Percent);
case cssValueFor100:
return Length(100, Percent);
case CSSValueCenter:
return Length(50, Percent);
default:
NOTREACHED();
}
}
return StyleBuilderConverter::convertLength(state,
toCSSPrimitiveValue(value));
}
template <CSSValueID IdForNone>
AtomicString StyleBuilderConverter::convertString(StyleResolverState&,
const CSSValue& value) {
if (value.isStringValue())
return AtomicString(toCSSStringValue(value).value());
DCHECK_EQ(toCSSIdentifierValue(value).getValueID(), IdForNone);
return nullAtom;
}
} // namespace blink
#endif
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