| /* |
| * 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/CSSFunctionValue.h" |
| #include "core/css/CSSIdentifierValue.h" |
| #include "core/css/CSSPrimitiveValue.h" |
| #include "core/css/CSSStringValue.h" |
| #include "core/css/CSSValue.h" |
| #include "core/css/CSSValueList.h" |
| #include "core/css/CSSValuePair.h" |
| #include "core/style/GridArea.h" |
| #include "core/style/GridPositionsResolver.h" |
| #include "core/style/NamedGridLinesMap.h" |
| #include "core/style/OrderedNamedGridLines.h" |
| #include "core/style/QuotesData.h" |
| #include "core/style/SVGComputedStyleDefs.h" |
| #include "core/style/ShadowList.h" |
| #include "core/style/StyleOffsetRotation.h" |
| #include "core/style/StyleReflection.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 "platform/wtf/Allocator.h" |
| |
| namespace blink { |
| |
| class ClipPathOperation; |
| class CSSToLengthConversionData; |
| class FontBuilder; |
| class RotateTransformOperation; |
| class ScaleTransformOperation; |
| class StyleAutoColor; |
| class StylePath; |
| class StyleResolverState; |
| class TextSizeAdjust; |
| class TranslateTransformOperation; |
| class UnzoomedLength; |
| |
| class StyleBuilderConverterBase { |
| STATIC_ONLY(StyleBuilderConverterBase); |
| |
| public: |
| static FontSelectionValue ConvertFontStretch(const CSSValue&); |
| static FontSelectionValue ConvertFontStyle(const CSSValue&); |
| static FontSelectionValue ConvertFontWeight(const CSSValue&, |
| FontSelectionValue); |
| static FontDescription::FontVariantCaps ConvertFontVariantCaps( |
| const CSSValue&); |
| static FontDescription::FamilyDescription ConvertFontFamily( |
| const CSSValue&, |
| FontBuilder*, |
| const Document* document_for_count); |
| static FontDescription::Size ConvertFontSize( |
| const CSSValue&, |
| const CSSToLengthConversionData&, |
| FontDescription::Size parent_size); |
| }; |
| |
| // Note that we assume the parser only allows valid CSSValue types. |
| class StyleBuilderConverter { |
| STATIC_ONLY(StyleBuilderConverter); |
| |
| public: |
| static scoped_refptr<StyleReflection> ConvertBoxReflect(StyleResolverState&, |
| const CSSValue&); |
| static AtomicString ConvertFragmentIdentifier(StyleResolverState&, |
| const CSSValue&); |
| static Color ConvertColor(StyleResolverState&, |
| const CSSValue&, |
| bool for_visited_link = false); |
| template <typename T> |
| static T ConvertComputedLength(StyleResolverState&, const CSSValue&); |
| static LengthBox ConvertClip(StyleResolverState&, const CSSValue&); |
| static scoped_refptr<ClipPathOperation> ConvertClipPath(StyleResolverState&, |
| const CSSValue&); |
| static FilterOperations ConvertFilterOperations(StyleResolverState&, |
| const CSSValue&); |
| static FilterOperations ConvertOffscreenFilterOperations(const CSSValue&); |
| template <typename T> |
| static T ConvertFlags(StyleResolverState&, const CSSValue&); |
| static FontDescription::FamilyDescription ConvertFontFamily( |
| StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<FontFeatureSettings> ConvertFontFeatureSettings( |
| StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<FontVariationSettings> ConvertFontVariationSettings( |
| StyleResolverState&, |
| const CSSValue&); |
| static FontDescription::Size ConvertFontSize(StyleResolverState&, |
| const CSSValue&); |
| static float ConvertFontSizeAdjust(StyleResolverState&, const CSSValue&); |
| |
| static FontSelectionValue ConvertFontStretch(StyleResolverState&, |
| const CSSValue&); |
| static FontSelectionValue ConvertFontStyle(StyleResolverState&, |
| const CSSValue&); |
| static FontSelectionValue 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 FontVariantEastAsian ConvertFontVariantEastAsian(StyleResolverState&, |
| const CSSValue&); |
| static StyleSelfAlignmentData ConvertSelfOrDefaultAlignmentData( |
| StyleResolverState&, |
| const CSSValue&); |
| static StyleContentAlignmentData ConvertContentAlignmentData( |
| StyleResolverState&, |
| const CSSValue&); |
| static GapLength ConvertGapLength(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 float ConvertBorderWidth(StyleResolverState&, const CSSValue&); |
| static GapLength ConvertGapLength(const 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 scoped_refptr<QuotesData> ConvertQuotes(StyleResolverState&, |
| const CSSValue&); |
| static LengthSize ConvertRadius(StyleResolverState&, const CSSValue&); |
| static EPaintOrder ConvertPaintOrder(StyleResolverState&, const CSSValue&); |
| static ShadowData ConvertShadow(const CSSToLengthConversionData&, |
| StyleResolverState*, |
| const CSSValue&); |
| static double ConvertValueToNumber(const CSSFunctionValue*, |
| const CSSPrimitiveValue*); |
| static scoped_refptr<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 scoped_refptr<SVGDashArray> ConvertStrokeDasharray(StyleResolverState&, |
| const CSSValue&); |
| static StyleColor ConvertStyleColor(StyleResolverState&, |
| const CSSValue&, |
| bool for_visited_link = false); |
| static StyleAutoColor ConvertStyleAutoColor(StyleResolverState&, |
| const CSSValue&, |
| bool for_visited_link = false); |
| static TextEmphasisPosition ConvertTextTextEmphasisPosition( |
| StyleResolverState&, |
| const CSSValue&); |
| 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>& auto_repeat_track_sizes, |
| NamedGridLinesMap&, |
| OrderedNamedGridLines&, |
| size_t& auto_repeat_insertion_point, |
| AutoRepeatType&, |
| StyleResolverState&); |
| static void CreateImplicitNamedGridLinesFromGridArea( |
| const NamedGridAreaMap&, |
| NamedGridLinesMap&, |
| GridTrackSizingDirection); |
| static void ConvertOrderedNamedGridLinesMapToNamedGridLinesMap( |
| const OrderedNamedGridLines&, |
| NamedGridLinesMap&); |
| |
| static ScrollSnapType ConvertSnapType(StyleResolverState&, const CSSValue&); |
| static ScrollSnapAlign ConvertSnapAlign(StyleResolverState&, const CSSValue&); |
| static scoped_refptr<TranslateTransformOperation> ConvertTranslate( |
| StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<RotateTransformOperation> ConvertRotate( |
| StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<ScaleTransformOperation> ConvertScale( |
| StyleResolverState&, |
| const CSSValue&); |
| static RespectImageOrientationEnum ConvertImageOrientation( |
| StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<StylePath> ConvertPathOrNone(StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<BasicShape> ConvertOffsetPath(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&); |
| |
| private: |
| static const CSSToLengthConversionData& CssToLengthConversionData( |
| StyleResolverState&); |
| }; |
| |
| template <typename T> |
| T StyleBuilderConverter::ConvertComputedLength(StyleResolverState& state, |
| const CSSValue& value) { |
| return ToCSSPrimitiveValue(value).ComputeLength<T>( |
| CssToLengthConversionData(state)); |
| } |
| |
| 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& flag_value : ToCSSValueList(value)) |
| flags |= ToCSSIdentifierValue(*flag_value).ConvertTo<T>(); |
| return flags; |
| } |
| |
| template <typename T> |
| T StyleBuilderConverter::ConvertLineWidth(StyleResolverState& state, |
| const CSSValue& value) { |
| if (value.IsIdentifierValue()) { |
| CSSValueID value_id = ToCSSIdentifierValue(value).GetValueID(); |
| if (value_id == CSSValueThin) |
| return 1; |
| if (value_id == CSSValueMedium) |
| return 3; |
| if (value_id == CSSValueThick) |
| return 5; |
| NOTREACHED(); |
| return 0; |
| } |
| const CSSPrimitiveValue& primitive_value = 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 = |
| primitive_value.ComputeLength<double>(CssToLengthConversionData(state)); |
| 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, kPercent); |
| case cssValueFor100: |
| return Length(100, kPercent); |
| case CSSValueCenter: |
| return Length(50, kPercent); |
| 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 g_null_atom; |
| } |
| |
| } // namespace blink |
| |
| #endif |
