| /* |
| * 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_STYLE_BUILDER_CONVERTER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_STYLE_BUILDER_CONVERTER_H_ |
| |
| #include "cc/input/scroll_snap_data.h" |
| #include "third_party/blink/renderer/core/css/css_function_value.h" |
| #include "third_party/blink/renderer/core/css/css_identifier_value.h" |
| #include "third_party/blink/renderer/core/css/css_primitive_value.h" |
| #include "third_party/blink/renderer/core/css/css_string_value.h" |
| #include "third_party/blink/renderer/core/css/css_value.h" |
| #include "third_party/blink/renderer/core/css/css_value_list.h" |
| #include "third_party/blink/renderer/core/css/css_value_pair.h" |
| #include "third_party/blink/renderer/core/css/css_variable_data.h" |
| #include "third_party/blink/renderer/core/css/resolver/style_resolver_state.h" |
| #include "third_party/blink/renderer/core/style/computed_style.h" |
| #include "third_party/blink/renderer/core/style/grid_area.h" |
| #include "third_party/blink/renderer/core/style/grid_positions_resolver.h" |
| #include "third_party/blink/renderer/core/style/named_grid_lines_map.h" |
| #include "third_party/blink/renderer/core/style/ordered_named_grid_lines.h" |
| #include "third_party/blink/renderer/core/style/quotes_data.h" |
| #include "third_party/blink/renderer/core/style/shadow_list.h" |
| #include "third_party/blink/renderer/core/style/style_offset_rotation.h" |
| #include "third_party/blink/renderer/core/style/style_reflection.h" |
| #include "third_party/blink/renderer/core/style/transform_origin.h" |
| #include "third_party/blink/renderer/platform/fonts/font_description.h" |
| #include "third_party/blink/renderer/platform/geometry/length_size.h" |
| #include "third_party/blink/renderer/platform/graphics/image_orientation.h" |
| #include "third_party/blink/renderer/platform/text/tab_size.h" |
| #include "third_party/blink/renderer/platform/transforms/rotation.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/text/text_encoding.h" |
| |
| namespace blink { |
| |
| class ClipPathOperation; |
| class CSSToLengthConversionData; |
| class Font; |
| class FontBuilder; |
| class RotateTransformOperation; |
| class ScaleTransformOperation; |
| class StyleAutoColor; |
| class StylePath; |
| class StyleResolverState; |
| class StyleSVGResource; |
| 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&); |
| template <typename T> |
| static T ConvertComputedLength(StyleResolverState&, const CSSValue&); |
| static LengthBox ConvertClip(StyleResolverState&, const CSSValue&); |
| static scoped_refptr<ClipPathOperation> ConvertClipPath(StyleResolverState&, |
| const CSSValue&); |
| static scoped_refptr<StyleSVGResource> ConvertElementReference( |
| StyleResolverState&, |
| const CSSValue&); |
| static FilterOperations ConvertFilterOperations(StyleResolverState&, |
| const CSSValue&, |
| CSSPropertyID); |
| static FilterOperations ConvertOffscreenFilterOperations(const CSSValue&, |
| const Font&); |
| 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( |
| const 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 GridAutoFlow ConvertGridAutoFlow(StyleResolverState&, const CSSValue&); |
| static GridPosition ConvertGridPosition(StyleResolverState&, const CSSValue&); |
| static GridTrackSize ConvertGridTrackSize(StyleResolverState&, |
| const CSSValue&); |
| static GridTrackList ConvertGridTrackSizeList(StyleResolverState&, |
| const CSSValue&); |
| template <typename T> |
| static T ConvertLineWidth(StyleResolverState&, const CSSValue&); |
| static float ConvertBorderWidth(StyleResolverState&, const CSSValue&); |
| static LayoutUnit ConvertLayoutUnit(StyleResolverState&, const CSSValue&); |
| static base::Optional<Length> ConvertGapLength(const StyleResolverState&, |
| const CSSValue&); |
| static Length ConvertLength(const StyleResolverState&, const CSSValue&); |
| static UnzoomedLength ConvertUnzoomedLength(const StyleResolverState&, |
| const CSSValue&); |
| static float ConvertZoom(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 float ConvertAlpha(StyleResolverState&, |
| const CSSValue&); // clamps to [0,1] |
| 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 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 SVGPaint ConvertSVGPaint(StyleResolverState&, |
| const CSSValue&, |
| bool for_visited_link); |
| static TextDecorationThickness ConvertTextDecorationThickness( |
| StyleResolverState&, |
| const CSSValue&); |
| static TextEmphasisPosition ConvertTextTextEmphasisPosition( |
| StyleResolverState&, |
| const CSSValue&); |
| static float ConvertTextStrokeWidth(StyleResolverState&, const CSSValue&); |
| static TextSizeAdjust ConvertTextSizeAdjust(StyleResolverState&, |
| const CSSValue&); |
| static TextUnderlinePosition ConvertTextUnderlinePosition( |
| StyleResolverState& state, |
| const CSSValue& value); |
| static Length ConvertTextUnderlineOffset(StyleResolverState& state, |
| const CSSValue& value); |
| static TransformOperations ConvertTransformOperations(StyleResolverState&, |
| const CSSValue&); |
| static TransformOrigin ConvertTransformOrigin(StyleResolverState&, |
| const CSSValue&); |
| |
| static void ConvertGridTrackList( |
| const CSSValue&, |
| GridTrackList&, |
| 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 cc::ScrollSnapType ConvertSnapType(StyleResolverState&, |
| const CSSValue&); |
| static cc::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 Document&, |
| const CSSValue&); |
| static const CSSValue& ConvertRegisteredPropertyValue( |
| const StyleResolverState&, |
| const CSSValue&, |
| const String& base_url, |
| const WTF::TextEncoding&); |
| |
| static scoped_refptr<CSSVariableData> ConvertRegisteredPropertyVariableData( |
| const CSSValue&, |
| bool is_animation_tainted); |
| |
| static LengthSize ConvertIntrinsicSize(StyleResolverState&, const CSSValue&); |
| |
| static StyleAspectRatio ConvertAspectRatio(const StyleResolverState&, |
| const CSSValue&); |
| |
| static bool ConvertInternalAlignSelfBlock(StyleResolverState& state, |
| const CSSValue& value); |
| static bool ConvertInternalEmptyLineHeight(StyleResolverState& state, |
| const CSSValue& value); |
| |
| static AtomicString ConvertPage(StyleResolverState&, const CSSValue&); |
| |
| static RubyPosition ConvertRubyPosition(StyleResolverState& state, |
| const CSSValue& value); |
| |
| static ScrollbarGutter ConvertScrollbarGutter(StyleResolverState& state, |
| const CSSValue& value); |
| |
| static void CountSystemColorComputeToSelfUsage( |
| const StyleResolverState& state); |
| }; |
| |
| template <typename T> |
| T StyleBuilderConverter::ConvertComputedLength(StyleResolverState& state, |
| const CSSValue& value) { |
| return To<CSSPrimitiveValue>(value).ComputeLength<T>( |
| state.CssToLengthConversionData()); |
| } |
| |
| template <typename T> |
| T StyleBuilderConverter::ConvertFlags(StyleResolverState& state, |
| const CSSValue& value) { |
| T flags = static_cast<T>(0); |
| auto* identifier_value = DynamicTo<CSSIdentifierValue>(value); |
| if (identifier_value && identifier_value->GetValueID() == CSSValueID::kNone) |
| return flags; |
| for (auto& flag_value : To<CSSValueList>(value)) |
| flags |= To<CSSIdentifierValue>(*flag_value).ConvertTo<T>(); |
| return flags; |
| } |
| |
| template <typename T> |
| T StyleBuilderConverter::ConvertLineWidth(StyleResolverState& state, |
| const CSSValue& value) { |
| double result = 0; |
| if (auto* identifier_value = DynamicTo<CSSIdentifierValue>(value)) { |
| switch (identifier_value->GetValueID()) { |
| case CSSValueID::kThin: |
| result = 1; |
| break; |
| case CSSValueID::kMedium: |
| result = 3; |
| break; |
| case CSSValueID::kThick: |
| result = 5; |
| break; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| result = state.CssToLengthConversionData().ZoomedComputedPixels( |
| result, CSSPrimitiveValue::UnitType::kPixels); |
| } else { |
| result = To<CSSPrimitiveValue>(value).ComputeLength<double>( |
| state.CssToLengthConversionData()); |
| } |
| // TODO(crbug.com/485650, crbug.com/382483): 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. |
| double zoomed_result = state.StyleRef().EffectiveZoom() * result; |
| if (zoomed_result > 0.0 && zoomed_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 (const auto* pair = DynamicTo<CSSValuePair>(value)) { |
| Length length = StyleBuilderConverter::ConvertLength(state, pair->Second()); |
| if (To<CSSIdentifierValue>(pair->First()).GetValueID() == cssValueFor0) |
| return length; |
| DCHECK_EQ(To<CSSIdentifierValue>(pair->First()).GetValueID(), |
| cssValueFor100); |
| return length.SubtractFromOneHundredPercent(); |
| } |
| |
| if (auto* identifier_value = DynamicTo<CSSIdentifierValue>(value)) { |
| switch (identifier_value->GetValueID()) { |
| case cssValueFor0: |
| return Length::Percent(0); |
| case cssValueFor100: |
| return Length::Percent(100); |
| case CSSValueID::kCenter: |
| return Length::Percent(50); |
| default: |
| NOTREACHED(); |
| } |
| } |
| |
| return StyleBuilderConverter::ConvertLength(state, |
| To<CSSPrimitiveValue>(value)); |
| } |
| |
| template <CSSValueID IdForNone> |
| AtomicString StyleBuilderConverter::ConvertString(StyleResolverState&, |
| const CSSValue& value) { |
| if (auto* string_value = DynamicTo<CSSStringValue>(value)) |
| return AtomicString(string_value->Value()); |
| DCHECK_EQ(To<CSSIdentifierValue>(value).GetValueID(), IdForNone); |
| return g_null_atom; |
| } |
| |
| } // namespace blink |
| |
| #endif |
