bool RenderSVGResourceClipper::drawContentIntoMaskImage(const ClipperMaskImage& clipperMaskImage, const FloatRect& objectBoundingBox)
{
ASSERT(clipperMaskImage);
GraphicsContext& maskContext = clipperMaskImage->context();
AffineTransform maskContentTransformation;
if (clipPathElement().clipPathUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
maskContentTransformation.translate(objectBoundingBox.x(), objectBoundingBox.y());
maskContentTransformation.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
maskContext.concatCTM(maskContentTransformation);
}
// Switch to a paint behavior where all children of this <clipPath> will be rendered using special constraints:
// - fill-opacity/stroke-opacity/opacity set to 1
// - masker/filter not applied when rendering the children
// - fill is set to the initial fill paint server (solid, black)
// - stroke is set to the initial stroke paint server (none)
PaintBehavior oldBehavior = view().frameView().paintBehavior();
view().frameView().setPaintBehavior(oldBehavior | PaintBehaviorRenderingSVGMask);
// Draw all clipPath children into a global mask.
for (auto& child : childrenOfType<SVGElement>(clipPathElement())) {
auto renderer = child.renderer();
if (!renderer)
continue;
if (renderer->needsLayout()) {
view().frameView().setPaintBehavior(oldBehavior);
return false;
}
const RenderStyle& style = renderer->style();
if (style.display() == NONE || style.visibility() != VISIBLE)
continue;
WindRule newClipRule = style.svgStyle().clipRule();
bool isUseElement = child.hasTagName(SVGNames::useTag);
if (isUseElement) {
SVGUseElement& useElement = downcast<SVGUseElement>(child);
renderer = useElement.rendererClipChild();
if (!renderer)
continue;
if (!useElement.hasAttributeWithoutSynchronization(SVGNames::clip_ruleAttr))
newClipRule = renderer->style().svgStyle().clipRule();
}
// Only shapes, paths and texts are allowed for clipping.
if (!renderer->isSVGShape() && !renderer->isSVGText())
continue;
maskContext.setFillRule(newClipRule);
// In the case of a <use> element, we obtained its renderere above, to retrieve its clipRule.
// We have to pass the <use> renderer itself to renderSubtreeToImageBuffer() to apply it's x/y/transform/etc. values when rendering.
// So if isUseElement is true, refetch the childNode->renderer(), as renderer got overriden above.
SVGRenderingContext::renderSubtreeToImageBuffer(clipperMaskImage.get(), isUseElement ? *child.renderer() : *renderer, maskContentTransformation);
}
view().frameView().setPaintBehavior(oldBehavior);
return true;
}
RenderPtr<RenderText> Text::createTextRenderer(const RenderStyle& style)
{
if (isSVGText(this) || isSVGShadowText(this))
return createRenderer<RenderSVGInlineText>(*this, data());
if (style.hasTextCombine())
return createRenderer<RenderCombineText>(*this, data());
return createRenderer<RenderText>(*this, data());
}
LayoutText* Text::createTextLayoutObject(const ComputedStyle& style)
{
if (isSVGText(this))
return new LayoutSVGInlineText(this, dataImpl());
if (style.hasTextCombine())
return new LayoutTextCombine(this, dataImpl());
return new LayoutText(this, dataImpl());
}
RenderText* Text::createTextRenderer(RenderStyle* style)
{
if (isSVGText(this))
return new RenderSVGInlineText(this, dataImpl());
if (style->hasTextCombine())
return new RenderCombineText(this, dataImpl());
return new RenderText(this, dataImpl());
}
RenderText* Text::createTextRenderer(RenderArena* arena, RenderStyle* style)
{
#if ENABLE(SVG)
if (isSVGText(this) || isSVGShadowText(this))
return new (arena) RenderSVGInlineText(this, dataImpl());
#endif
if (style->hasTextCombine())
return new (arena) RenderCombineText(this, dataImpl());
return new (arena) RenderText(this, dataImpl());
}