| /* |
| * 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. |
| */ |
| |
| #include "sky/engine/core/css/resolver/StyleBuilderConverter.h" |
| |
| #include "sky/engine/core/css/CSSFontFeatureValue.h" |
| #include "sky/engine/core/css/CSSFunctionValue.h" |
| #include "sky/engine/core/css/CSSPrimitiveValueMappings.h" |
| #include "sky/engine/core/css/CSSShadowValue.h" |
| #include "sky/engine/core/css/Pair.h" |
| |
| namespace blink { |
| |
| Color StyleBuilderConverter::convertColor(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| return state.document().textLinkColors().colorFromPrimitiveValue(primitiveValue, state.style()->color()); |
| } |
| |
| AtomicString StyleBuilderConverter::convertFragmentIdentifier(StyleResolverState& state, CSSValue* value) |
| { |
| return nullAtom; |
| } |
| |
| PassRefPtr<FontFeatureSettings> StyleBuilderConverter::convertFontFeatureSettings(StyleResolverState& state, CSSValue* value) |
| { |
| if (value->isPrimitiveValue() && toCSSPrimitiveValue(value)->getValueID() == CSSValueNormal) |
| return FontBuilder::initialFeatureSettings(); |
| |
| CSSValueList* list = toCSSValueList(value); |
| RefPtr<FontFeatureSettings> settings = FontFeatureSettings::create(); |
| int len = list->length(); |
| for (int i = 0; i < len; ++i) { |
| CSSFontFeatureValue* feature = toCSSFontFeatureValue(list->item(i)); |
| settings->append(FontFeature(feature->tag(), feature->value())); |
| } |
| return settings; |
| } |
| |
| FontWeight StyleBuilderConverter::convertFontWeight(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| switch (primitiveValue->getValueID()) { |
| case CSSValueBolder: |
| return FontDescription::bolderWeight(state.parentStyle()->fontDescription().weight()); |
| case CSSValueLighter: |
| return FontDescription::lighterWeight(state.parentStyle()->fontDescription().weight()); |
| default: |
| return *primitiveValue; |
| } |
| } |
| |
| FontDescription::VariantLigatures StyleBuilderConverter::convertFontVariantLigatures(StyleResolverState&, CSSValue* value) |
| { |
| if (value->isValueList()) { |
| FontDescription::VariantLigatures ligatures; |
| CSSValueList* valueList = toCSSValueList(value); |
| for (size_t i = 0; i < valueList->length(); ++i) { |
| CSSValue* item = valueList->item(i); |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(item); |
| switch (primitiveValue->getValueID()) { |
| case CSSValueNoCommonLigatures: |
| ligatures.common = FontDescription::DisabledLigaturesState; |
| break; |
| case CSSValueCommonLigatures: |
| ligatures.common = FontDescription::EnabledLigaturesState; |
| break; |
| case CSSValueNoDiscretionaryLigatures: |
| ligatures.discretionary = FontDescription::DisabledLigaturesState; |
| break; |
| case CSSValueDiscretionaryLigatures: |
| ligatures.discretionary = FontDescription::EnabledLigaturesState; |
| break; |
| case CSSValueNoHistoricalLigatures: |
| ligatures.historical = FontDescription::DisabledLigaturesState; |
| break; |
| case CSSValueHistoricalLigatures: |
| ligatures.historical = FontDescription::EnabledLigaturesState; |
| break; |
| case CSSValueNoContextual: |
| ligatures.contextual = FontDescription::DisabledLigaturesState; |
| break; |
| case CSSValueContextual: |
| ligatures.contextual = FontDescription::EnabledLigaturesState; |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| } |
| return ligatures; |
| } |
| |
| ASSERT_WITH_SECURITY_IMPLICATION(value->isPrimitiveValue()); |
| ASSERT(toCSSPrimitiveValue(value)->getValueID() == CSSValueNormal); |
| return FontDescription::VariantLigatures(); |
| } |
| |
| Length StyleBuilderConverter::convertLength(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| Length result = primitiveValue->convertToLength<FixedConversion | PercentConversion>(state.cssToLengthConversionData()); |
| result.setQuirk(primitiveValue->isQuirkValue()); |
| return result; |
| } |
| |
| Length StyleBuilderConverter::convertLengthOrAuto(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| Length result = primitiveValue->convertToLength<FixedConversion | PercentConversion | AutoConversion>(state.cssToLengthConversionData()); |
| result.setQuirk(primitiveValue->isQuirkValue()); |
| return result; |
| } |
| |
| Length StyleBuilderConverter::convertLengthSizing(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| switch (primitiveValue->getValueID()) { |
| case CSSValueInvalid: |
| return convertLength(state, value); |
| case CSSValueIntrinsic: |
| return Length(Intrinsic); |
| case CSSValueMinIntrinsic: |
| return Length(MinIntrinsic); |
| case CSSValueWebkitMinContent: |
| return Length(MinContent); |
| case CSSValueWebkitMaxContent: |
| return Length(MaxContent); |
| case CSSValueWebkitFillAvailable: |
| return Length(FillAvailable); |
| case CSSValueWebkitFitContent: |
| return Length(FitContent); |
| case CSSValueAuto: |
| return Length(Auto); |
| default: |
| ASSERT_NOT_REACHED(); |
| return Length(); |
| } |
| } |
| |
| Length StyleBuilderConverter::convertLengthMaxSizing(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| if (primitiveValue->getValueID() == CSSValueNone) |
| return Length(MaxSizeNone); |
| return convertLengthSizing(state, value); |
| } |
| |
| LengthPoint StyleBuilderConverter::convertLengthPoint(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| Pair* pair = primitiveValue->getPairValue(); |
| Length x = pair->first()->convertToLength<FixedConversion | PercentConversion>(state.cssToLengthConversionData()); |
| Length y = pair->second()->convertToLength<FixedConversion | PercentConversion>(state.cssToLengthConversionData()); |
| return LengthPoint(x, y); |
| } |
| |
| LineBoxContain StyleBuilderConverter::convertLineBoxContain(StyleResolverState&, CSSValue* value) |
| { |
| if (value->isPrimitiveValue()) { |
| ASSERT(toCSSPrimitiveValue(value)->getValueID() == CSSValueNone); |
| return LineBoxContainNone; |
| } |
| |
| return toCSSLineBoxContainValue(value)->value(); |
| } |
| |
| float StyleBuilderConverter::convertNumberOrPercentage(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| ASSERT(primitiveValue->isNumber() || primitiveValue->isPercentage()); |
| if (primitiveValue->isNumber()) |
| return primitiveValue->getFloatValue(); |
| return primitiveValue->getFloatValue() / 100.0f; |
| } |
| |
| LengthSize StyleBuilderConverter::convertRadius(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| Pair* pair = primitiveValue->getPairValue(); |
| Length radiusWidth = pair->first()->convertToLength<FixedConversion | PercentConversion>(state.cssToLengthConversionData()); |
| Length radiusHeight = pair->second()->convertToLength<FixedConversion | PercentConversion>(state.cssToLengthConversionData()); |
| float width = radiusWidth.value(); |
| float height = radiusHeight.value(); |
| ASSERT(width >= 0 && height >= 0); |
| if (width <= 0 || height <= 0) |
| return LengthSize(Length(0, Fixed), Length(0, Fixed)); |
| return LengthSize(radiusWidth, radiusHeight); |
| } |
| |
| PassRefPtr<ShadowList> StyleBuilderConverter::convertShadow(StyleResolverState& state, CSSValue* value) |
| { |
| if (value->isPrimitiveValue()) { |
| ASSERT(toCSSPrimitiveValue(value)->getValueID() == CSSValueNone); |
| return PassRefPtr<ShadowList>(); |
| } |
| |
| const CSSValueList* valueList = toCSSValueList(value); |
| size_t shadowCount = valueList->length(); |
| ShadowDataVector shadows; |
| for (size_t i = 0; i < shadowCount; ++i) { |
| const CSSShadowValue* item = toCSSShadowValue(valueList->item(i)); |
| float x = item->x->computeLength<float>(state.cssToLengthConversionData()); |
| float y = item->y->computeLength<float>(state.cssToLengthConversionData()); |
| float blur = item->blur ? item->blur->computeLength<float>(state.cssToLengthConversionData()) : 0; |
| float spread = item->spread ? item->spread->computeLength<float>(state.cssToLengthConversionData()) : 0; |
| ShadowStyle shadowStyle = item->style && item->style->getValueID() == CSSValueInset ? Inset : Normal; |
| Color color; |
| if (item->color) |
| color = convertColor(state, item->color.get()); |
| else |
| color = state.style()->color(); |
| shadows.append(ShadowData(FloatPoint(x, y), blur, spread, shadowStyle, color)); |
| } |
| return ShadowList::adopt(shadows); |
| } |
| |
| float StyleBuilderConverter::convertSpacing(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| if (primitiveValue->getValueID() == CSSValueNormal) |
| return 0; |
| return primitiveValue->computeLength<float>(state.cssToLengthConversionData()); |
| } |
| |
| float StyleBuilderConverter::convertTextStrokeWidth(StyleResolverState& state, CSSValue* value) |
| { |
| CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value); |
| if (primitiveValue->getValueID()) { |
| float multiplier = convertLineWidth<float>(state, value); |
| return CSSPrimitiveValue::create(multiplier / 48, CSSPrimitiveValue::CSS_EMS)->computeLength<float>(state.cssToLengthConversionData()); |
| } |
| return primitiveValue->computeLength<float>(state.cssToLengthConversionData()); |
| } |
| |
| } // namespace blink |