C++ RenderStyle::filter方法代码示例

bool SVGResources::buildCachedResources(const RenderElement& renderer, const RenderStyle& style)
{
    ASSERT(renderer.element());
    ASSERT_WITH_SECURITY_IMPLICATION(renderer.element()->isSVGElement());

    if (!renderer.element())
        return false;

    auto& element = downcast<SVGElement>(*renderer.element());

    Document& document = element.document();

    SVGDocumentExtensions& extensions = document.accessSVGExtensions();

    const AtomicString& tagName = element.localName();
    if (tagName.isNull())
        return false;

    const SVGRenderStyle& svgStyle = style.svgStyle();

    bool foundResources = false;
    if (clipperFilterMaskerTags().contains(tagName)) {
        if (svgStyle.hasClipper()) {
            AtomicString id(svgStyle.clipperResource());
            if (setClipper(getRenderSVGResourceById<RenderSVGResourceClipper>(document, id)))
                foundResources = true;
            else
                registerPendingResource(extensions, id, element);
        }

        if (style.hasFilter()) {
            const FilterOperations& filterOperations = style.filter();
            if (filterOperations.size() == 1) {
                const FilterOperation& filterOperation = *filterOperations.at(0);
                if (filterOperation.type() == FilterOperation::REFERENCE) {
                    const auto& referenceFilterOperation = downcast<ReferenceFilterOperation>(filterOperation);
                    AtomicString id = SVGURIReference::fragmentIdentifierFromIRIString(referenceFilterOperation.url(), element.document());
                    if (setFilter(getRenderSVGResourceById<RenderSVGResourceFilter>(document, id)))
                        foundResources = true;
                    else
                        registerPendingResource(extensions, id, element);
                }
            }
        }

        if (svgStyle.hasMasker()) {
            AtomicString id(svgStyle.maskerResource());
            if (setMasker(getRenderSVGResourceById<RenderSVGResourceMasker>(document, id)))
                foundResources = true;
            else
                registerPendingResource(extensions, id, element);
        }
    }

    if (markerTags().contains(tagName) && svgStyle.hasMarkers()) {
        AtomicString markerStartId(svgStyle.markerStartResource());
        if (setMarkerStart(getRenderSVGResourceById<RenderSVGResourceMarker>(document, markerStartId)))
            foundResources = true;
        else
            registerPendingResource(extensions, markerStartId, element);

        AtomicString markerMidId(svgStyle.markerMidResource());
        if (setMarkerMid(getRenderSVGResourceById<RenderSVGResourceMarker>(document, markerMidId)))
            foundResources = true;
        else
            registerPendingResource(extensions, markerMidId, element);

        AtomicString markerEndId(svgStyle.markerEndResource());
        if (setMarkerEnd(getRenderSVGResourceById<RenderSVGResourceMarker>(document, markerEndId)))
            foundResources = true;
        else
            registerPendingResource(extensions, markerEndId, element);
    }

    if (fillAndStrokeTags().contains(tagName)) {
        if (svgStyle.hasFill()) {
            bool hasPendingResource = false;
            AtomicString id;
            if (setFill(paintingResourceFromSVGPaint(document, svgStyle.fillPaintType(), svgStyle.fillPaintUri(), id, hasPendingResource)))
                foundResources = true;
            else if (hasPendingResource)
                registerPendingResource(extensions, id, element);
        }

        if (svgStyle.hasStroke()) {
            bool hasPendingResource = false;
            AtomicString id;
            if (setStroke(paintingResourceFromSVGPaint(document, svgStyle.strokePaintType(), svgStyle.strokePaintUri(), id, hasPendingResource)))
                foundResources = true;
            else if (hasPendingResource)
                registerPendingResource(extensions, id, element);
        }
    }

    if (chainableResourceTags().contains(tagName)) {
        AtomicString id(targetReferenceFromResource(element));
        if (setLinkedResource(getRenderSVGResourceContainerById(document, id)))
            foundResources = true;
        else
            registerPendingResource(extensions, id, element);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        return a.stopOpacity() == b.stopOpacity();
    case CSSPropertyStroke:
        return a.strokePaintType() == b.strokePaintType()
            && (a.strokePaintType() != SVGPaint::SVG_PAINTTYPE_RGBCOLOR || a.strokePaintColor() == b.strokePaintColor());
    case CSSPropertyStrokeDasharray:
        return dataEquivalent(a.strokeDashArray(), b.strokeDashArray());
    case CSSPropertyStrokeDashoffset:
        return dataEquivalent(a.strokeDashOffset(), b.strokeDashOffset());
    case CSSPropertyStrokeMiterlimit:
        return a.strokeMiterLimit() == b.strokeMiterLimit();
    case CSSPropertyStrokeOpacity:
        return a.strokeOpacity() == b.strokeOpacity();
    case CSSPropertyStrokeWidth:
        return dataEquivalent(a.strokeWidth(), b.strokeWidth());
    case CSSPropertyTextDecorationColor:
        return a.textDecorationColor().resolve(a.color()) == b.textDecorationColor().resolve(b.color())
            && a.visitedLinkTextDecorationColor().resolve(a.color()) == b.visitedLinkTextDecorationColor().resolve(b.color());
    case CSSPropertyTextIndent:
        return a.textIndent() == b.textIndent();
    case CSSPropertyTextShadow:
        return dataEquivalent(a.textShadow(), b.textShadow());
    case CSSPropertyTop:
        return a.top() == b.top();
    case CSSPropertyVisibility:
        return a.visibility() == b.visibility();
    case CSSPropertyWebkitBackgroundSize:
        return fillLayersEqual<CSSPropertyWebkitBackgroundSize>(a.backgroundLayers(), b.backgroundLayers());
    case CSSPropertyWebkitBorderHorizontalSpacing:
        return a.horizontalBorderSpacing() == b.horizontalBorderSpacing();
    case CSSPropertyWebkitBorderVerticalSpacing:
        return a.verticalBorderSpacing() == b.verticalBorderSpacing();
    case CSSPropertyWebkitBoxShadow:
        return dataEquivalent(a.boxShadow(), b.boxShadow());
    case CSSPropertyWebkitClipPath:
        return dataEquivalent(a.clipPath(), b.clipPath());
    case CSSPropertyWebkitColumnCount:
        return a.columnCount() == b.columnCount();
    case CSSPropertyWebkitColumnGap:
        return a.columnGap() == b.columnGap();
    case CSSPropertyWebkitColumnRuleColor:
        return a.columnRuleColor().resolve(a.color()) == b.columnRuleColor().resolve(b.color())
            && a.visitedLinkColumnRuleColor().resolve(a.color()) == b.visitedLinkColumnRuleColor().resolve(b.color());
    case CSSPropertyWebkitColumnRuleWidth:
        return a.columnRuleWidth() == b.columnRuleWidth();
    case CSSPropertyWebkitColumnWidth:
        return a.columnWidth() == b.columnWidth();
    case CSSPropertyWebkitFilter:
        return a.filter() == b.filter();
    case CSSPropertyWebkitMaskBoxImageOutset:
        return a.maskBoxImageOutset() == b.maskBoxImageOutset();
    case CSSPropertyWebkitMaskBoxImageSlice:
        return a.maskBoxImageSlices() == b.maskBoxImageSlices();
    case CSSPropertyWebkitMaskBoxImageSource:
        return dataEquivalent(a.maskBoxImageSource(), b.maskBoxImageSource());
    case CSSPropertyWebkitMaskBoxImageWidth:
        return a.maskBoxImageWidth() == b.maskBoxImageWidth();
    case CSSPropertyWebkitMaskImage:
        return dataEquivalent(a.maskImage(), b.maskImage());
    case CSSPropertyWebkitMaskPositionX:
        return fillLayersEqual<CSSPropertyWebkitMaskPositionX>(a.maskLayers(), b.maskLayers());
    case CSSPropertyWebkitMaskPositionY:
        return fillLayersEqual<CSSPropertyWebkitMaskPositionY>(a.maskLayers(), b.maskLayers());
    case CSSPropertyWebkitMaskSize:
        return fillLayersEqual<CSSPropertyWebkitMaskSize>(a.maskLayers(), b.maskLayers());
    case CSSPropertyPerspective:
        return a.perspective() == b.perspective();
    case CSSPropertyPerspectiveOrigin:
        return a.perspectiveOriginX() == b.perspectiveOriginX() && a.perspectiveOriginY() == b.perspectiveOriginY();
    case CSSPropertyWebkitPerspectiveOriginX:
        return a.perspectiveOriginX() == b.perspectiveOriginX();
    case CSSPropertyWebkitPerspectiveOriginY:
        return a.perspectiveOriginY() == b.perspectiveOriginY();
    case CSSPropertyWebkitTextStrokeColor:
        return a.textStrokeColor().resolve(a.color()) == b.textStrokeColor().resolve(b.color())
            && a.visitedLinkTextStrokeColor().resolve(a.color()) == b.visitedLinkTextStrokeColor().resolve(b.color());
    case CSSPropertyTransform:
        return a.transform() == b.transform();
    case CSSPropertyTransformOrigin:
        return a.transformOriginX() == b.transformOriginX() && a.transformOriginY() == b.transformOriginY() && a.transformOriginZ() == b.transformOriginZ();
    case CSSPropertyWebkitTransformOriginX:
        return a.transformOriginX() == b.transformOriginX();
    case CSSPropertyWebkitTransformOriginY:
        return a.transformOriginY() == b.transformOriginY();
    case CSSPropertyWebkitTransformOriginZ:
        return a.transformOriginZ() == b.transformOriginZ();
    case CSSPropertyWidows:
        return a.widows() == b.widows();
    case CSSPropertyWidth:
        return a.width() == b.width();
    case CSSPropertyWordSpacing:
        return a.wordSpacing() == b.wordSpacing();
    case CSSPropertyZIndex:
        return a.zIndex() == b.zIndex();
    case CSSPropertyZoom:
        return a.zoom() == b.zoom();
    default:
        ASSERT_NOT_REACHED();
        return true;
    }
}

// FIXME: Generate this function.
PassRefPtr<AnimatableValue> CSSAnimatableValueFactory::create(CSSPropertyID property, const RenderStyle& style)
{
    ASSERT(CSSPropertyMetadata::isAnimatableProperty(property));
    switch (property) {
    case CSSPropertyBackgroundColor:
        return createFromColor(property, style);
    case CSSPropertyBackgroundImage:
        return createFromFillLayers<CSSPropertyBackgroundImage>(style.backgroundLayers(), style);
    case CSSPropertyBackgroundPositionX:
        return createFromFillLayers<CSSPropertyBackgroundPositionX>(style.backgroundLayers(), style);
    case CSSPropertyBackgroundPositionY:
        return createFromFillLayers<CSSPropertyBackgroundPositionY>(style.backgroundLayers(), style);
    case CSSPropertyBackgroundSize:
    case CSSPropertyWebkitBackgroundSize:
        return createFromFillLayers<CSSPropertyBackgroundSize>(style.backgroundLayers(), style);
    case CSSPropertyBorderBottomColor:
        return createFromColor(property, style);
    case CSSPropertyBorderBottomLeftRadius:
        return createFromLengthSize(style.borderBottomLeftRadius(), style);
    case CSSPropertyBorderBottomRightRadius:
        return createFromLengthSize(style.borderBottomRightRadius(), style);
    case CSSPropertyBorderBottomWidth:
        return createFromDouble(style.borderBottomWidth());
    case CSSPropertyBorderImageOutset:
        return createFromBorderImageLengthBox(style.borderImageOutset(), style);
    case CSSPropertyBorderImageSlice:
        return createFromLengthBox(style.borderImageSlices(), style);
    case CSSPropertyBorderImageSource:
        return createFromStyleImage(style.borderImageSource());
    case CSSPropertyBorderImageWidth:
        return createFromBorderImageLengthBox(style.borderImageWidth(), style);
    case CSSPropertyBorderLeftColor:
        return createFromColor(property, style);
    case CSSPropertyBorderLeftWidth:
        return createFromDouble(style.borderLeftWidth());
    case CSSPropertyBorderRightColor:
        return createFromColor(property, style);
    case CSSPropertyBorderRightWidth:
        return createFromDouble(style.borderRightWidth());
    case CSSPropertyBorderTopColor:
        return createFromColor(property, style);
    case CSSPropertyBorderTopLeftRadius:
        return createFromLengthSize(style.borderTopLeftRadius(), style);
    case CSSPropertyBorderTopRightRadius:
        return createFromLengthSize(style.borderTopRightRadius(), style);
    case CSSPropertyBorderTopWidth:
        return createFromDouble(style.borderTopWidth());
    case CSSPropertyBottom:
        return createFromLength(style.bottom(), style);
    case CSSPropertyBoxShadow:
    case CSSPropertyWebkitBoxShadow:
        return AnimatableShadow::create(style.boxShadow());
    case CSSPropertyClip:
        if (style.hasAutoClip())
            return AnimatableUnknown::create(CSSPrimitiveValue::create(CSSValueAuto));
        return createFromLengthBox(style.clip(), style);
    case CSSPropertyColor:
        return createFromColor(property, style);
    case CSSPropertyFilter:
        return AnimatableFilterOperations::create(style.filter());
    case CSSPropertyFlexGrow:
        return createFromDouble(style.flexGrow(), AnimatableDouble::InterpolationIsNonContinuousWithZero);
    case CSSPropertyFlexShrink:
        return createFromDouble(style.flexShrink(), AnimatableDouble::InterpolationIsNonContinuousWithZero);
    case CSSPropertyFlexBasis:
        return createFromLength(style.flexBasis(), style);
    case CSSPropertyFontSize:
        // Must pass a specified size to setFontSize if Text Autosizing is enabled, but a computed size
        // if text zoom is enabled (if neither is enabled it's irrelevant as they're probably the same).
        // FIXME: Should we introduce an option to pass the computed font size here, allowing consumers to
        // enable text zoom rather than Text Autosizing? See http://crbug.com/227545.
        return createFromDouble(style.specifiedFontSize());
    case CSSPropertyFontStretch:
        return createFromFontStretch(style.fontStretch());
    case CSSPropertyFontWeight:
        return createFromFontWeight(style.fontWeight());
    case CSSPropertyHeight:
        return createFromLength(style.height(), style);
    case CSSPropertyLeft:
        return createFromLength(style.left(), style);
    case CSSPropertyLetterSpacing:
        return createFromDouble(style.letterSpacing());
    case CSSPropertyLineHeight:
        return createFromLineHeight(style.specifiedLineHeight(), style);
    case CSSPropertyMarginBottom:
        return createFromLength(style.marginBottom(), style);
    case CSSPropertyMarginLeft:
        return createFromLength(style.marginLeft(), style);
    case CSSPropertyMarginRight:
        return createFromLength(style.marginRight(), style);
    case CSSPropertyMarginTop:
        return createFromLength(style.marginTop(), style);
    case CSSPropertyMaxHeight:
        return createFromLength(style.maxHeight(), style);
    case CSSPropertyMaxWidth:
        return createFromLength(style.maxWidth(), style);
    case CSSPropertyMinHeight:
        return createFromLength(style.minHeight(), style);
    case CSSPropertyMinWidth:
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        return createFromLength(style.right(), style);
    case CSSPropertyStrokeWidth:
        return AnimatableSVGLength::create(style.strokeWidth());
    case CSSPropertyStopColor:
        return createFromColor(property, style);
    case CSSPropertyStopOpacity:
        return createFromDouble(style.stopOpacity());
    case CSSPropertyStrokeDasharray:
        return AnimatableStrokeDasharrayList::create(style.strokeDashArray());
    case CSSPropertyStrokeDashoffset:
        return AnimatableSVGLength::create(style.strokeDashOffset());
    case CSSPropertyStrokeMiterlimit:
        return createFromDouble(style.strokeMiterLimit());
    case CSSPropertyStrokeOpacity:
        return createFromDouble(style.strokeOpacity());
    case CSSPropertyStroke:
        return AnimatableSVGPaint::create(style.svgStyle()->strokePaintType(), style.svgStyle()->strokePaintColor(), style.svgStyle()->strokePaintUri());
    case CSSPropertyTextDecorationColor:
        return createFromColor(property, style);
    case CSSPropertyTextIndent:
        return createFromLength(style.textIndent(), style);
    case CSSPropertyTextShadow:
        return AnimatableShadow::create(style.textShadow());
    case CSSPropertyTop:
        return createFromLength(style.top(), style);
    case CSSPropertyWebkitBorderHorizontalSpacing:
        return createFromDouble(style.horizontalBorderSpacing());
    case CSSPropertyWebkitBorderVerticalSpacing:
        return createFromDouble(style.verticalBorderSpacing());
    case CSSPropertyWebkitClipPath:
        return AnimatableClipPathOperation::create(style.clipPath());
    case CSSPropertyWebkitColumnCount:
        return createFromDouble(style.columnCount());
    case CSSPropertyWebkitColumnGap:
        return createFromDouble(style.columnGap());
    case CSSPropertyWebkitColumnRuleColor:
        return createFromColor(property, style);
    case CSSPropertyWebkitColumnRuleWidth:
        return createFromDouble(style.columnRuleWidth());
    case CSSPropertyWebkitColumnWidth:
        return createFromDouble(style.columnWidth());
    case CSSPropertyWebkitFilter:
        return AnimatableFilterOperations::create(style.filter());
    case CSSPropertyWebkitMaskBoxImageOutset:
        return createFromBorderImageLengthBox(style.maskBoxImageOutset(), style);
    case CSSPropertyWebkitMaskBoxImageSlice:
        return createFromLengthBoxAndBool(style.maskBoxImageSlices(), style.maskBoxImageSlicesFill(), style);
    case CSSPropertyWebkitMaskBoxImageSource:
        return createFromStyleImage(style.maskBoxImageSource());
    case CSSPropertyWebkitMaskBoxImageWidth:
        return createFromBorderImageLengthBox(style.maskBoxImageWidth(), style);
    case CSSPropertyWebkitMaskImage:
        return createFromFillLayers<CSSPropertyWebkitMaskImage>(style.maskLayers(), style);
    case CSSPropertyWebkitMaskPositionX:
        return createFromFillLayers<CSSPropertyWebkitMaskPositionX>(style.maskLayers(), style);
    case CSSPropertyWebkitMaskPositionY:
        return createFromFillLayers<CSSPropertyWebkitMaskPositionY>(style.maskLayers(), style);
    case CSSPropertyWebkitMaskSize:
        return createFromFillLayers<CSSPropertyWebkitMaskSize>(style.maskLayers(), style);
    case CSSPropertyWebkitPerspective:
        return createFromDouble(style.perspective());
    case CSSPropertyWebkitPerspectiveOriginX:
        return createFromLength(style.perspectiveOriginX(), style);
    case CSSPropertyWebkitPerspectiveOriginY:
        return createFromLength(style.perspectiveOriginY(), style);
    case CSSPropertyShapeInside:
        return AnimatableShapeValue::create(style.shapeInside());
    case CSSPropertyShapeOutside:
        return AnimatableShapeValue::create(style.shapeOutside());
    case CSSPropertyShapeMargin:
        return createFromLength(style.shapeMargin(), style);
    case CSSPropertyWebkitTextStrokeColor:
        return createFromColor(property, style);
    case CSSPropertyWebkitTransform:
        return AnimatableTransform::create(style.transform());
    case CSSPropertyWebkitTransformOriginX:
        return createFromLength(style.transformOriginX(), style);
    case CSSPropertyWebkitTransformOriginY:
        return createFromLength(style.transformOriginY(), style);
    case CSSPropertyWebkitTransformOriginZ:
        return createFromDouble(style.transformOriginZ());
    case CSSPropertyWidows:
        return createFromDouble(style.widows());
    case CSSPropertyWidth:
        return createFromLength(style.width(), style);
    case CSSPropertyWordSpacing:
        return createFromDouble(style.wordSpacing());
    case CSSPropertyVisibility:
        return AnimatableVisibility::create(style.visibility());
    case CSSPropertyZIndex:
        return createFromDouble(style.zIndex());
    case CSSPropertyZoom:
        return createFromDouble(style.zoom());
    default:
        ASSERT_WITH_MESSAGE(!CSSAnimations::isAnimatableProperty(property), "Web Animations not yet implemented: Create AnimatableValue from render style: %s", getPropertyNameString(property).utf8().data());
        ASSERT_NOT_REACHED();
        // This return value is to avoid a release crash if possible.
        return AnimatableUnknown::create(0);
    }
}