void SVGLengthTearOff::setValue(float value, ExceptionState& exceptionState)
{
if (isImmutable()) {
exceptionState.throwDOMException(NoModificationAllowedError, "The attribute is read-only.");
return;
}
if (target()->isRelative() && !canResolveRelativeUnits(contextElement())) {
exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length.");
return;
}
SVGLengthContext lengthContext(contextElement());
target()->setValue(value, lengthContext);
commitChange();
}
void SVGAnimatedLengthListAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
{
ASSERT(from->type() == AnimatedLengthList);
ASSERT(from->type() == to->type());
const SVGLengthList& fromLengthList = from->lengthList();
SVGLengthList& toLengthList = to->lengthList();
unsigned fromLengthListSize = fromLengthList.size();
if (!fromLengthListSize || fromLengthListSize != toLengthList.size())
return;
SVGLengthContext lengthContext(m_contextElement);
for (unsigned i = 0; i < fromLengthListSize; ++i)
toLengthList[i].setValue(toLengthList[i].value(lengthContext) + fromLengthList[i].value(lengthContext), lengthContext, ASSERT_NO_EXCEPTION);
}
void SVGLengthTearOff::convertToSpecifiedUnits(unsigned short unitType, ExceptionState& exceptionState)
{
if (isImmutable()) {
exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
return;
}
if (unitType == LengthTypeUnknown || unitType > LengthTypePC) {
exceptionState.throwDOMException(NotSupportedError, "Cannot convert to unknown or invalid units (" + String::number(unitType) + ").");
return;
}
SVGLengthContext lengthContext(contextElement());
target()->convertToSpecifiedUnits(toSVGLengthType(unitType), lengthContext, exceptionState);
commitChange();
}
void FEImage::platformApplySoftware()
{
RenderObject* renderer = referencedRenderer();
if (!m_image && !renderer)
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
SVGFilter* svgFilter = static_cast<SVGFilter*>(filter());
FloatRect destRect = svgFilter->absoluteTransform().mapRect(filterPrimitiveSubregion());
FloatRect srcRect;
if (renderer)
srcRect = svgFilter->absoluteTransform().mapRect(renderer->repaintRectInLocalCoordinates());
else {
srcRect = FloatRect(FloatPoint(), m_image->size());
m_preserveAspectRatio.transformRect(destRect, srcRect);
}
IntPoint paintLocation = absolutePaintRect().location();
destRect.move(-paintLocation.x(), -paintLocation.y());
if (renderer) {
const AffineTransform& absoluteTransform = svgFilter->absoluteTransform();
resultImage->context()->concatCTM(absoluteTransform);
SVGElement* contextNode = static_cast<SVGElement*>(renderer->node());
if (contextNode->isStyled() && static_cast<SVGStyledElement*>(contextNode)->hasRelativeLengths()) {
SVGLengthContext lengthContext(contextNode);
float width = 0;
float height = 0;
// If we're referencing an element with percentage units, eg. <rect with="30%"> those values were resolved against the viewport.
// Build up a transformation that maps from the viewport space to the filter primitive subregion.
if (lengthContext.determineViewport(width, height))
resultImage->context()->concatCTM(makeMapBetweenRects(FloatRect(0, 0, width, height), destRect));
}
AffineTransform contentTransformation;
SVGRenderingContext::renderSubtreeToImageBuffer(resultImage, renderer, contentTransformation);
return;
}
resultImage->context()->drawImage(m_image.get(), ColorSpaceDeviceRGB, destRect, srcRect);
}
void SVGLengthTearOff::setValue(float value, ExceptionState& exceptionState) {
if (isImmutable()) {
throwReadOnly(exceptionState);
return;
}
if (target()->isRelative() && !canResolveRelativeUnits(contextElement())) {
exceptionState.throwDOMException(NotSupportedError,
"Could not resolve relative length.");
return;
}
SVGLengthContext lengthContext(contextElement());
if (target()->isCalculated())
target()->setValueAsNumber(value);
else
target()->setValue(value, lengthContext);
commitChange();
}
void SVGUseElement::toClipPath(Path& path) const
{
ASSERT(path.isEmpty());
const SVGGraphicsElement* element = targetGraphicsElementForClipping();
if (!element)
return;
if (element->isSVGGeometryElement()) {
toSVGGeometryElement(*element).toClipPath(path);
// FIXME: Avoid manual resolution of x/y here. Its potentially harmful.
SVGLengthContext lengthContext(this);
path.translate(FloatSize(m_x->currentValue()->value(lengthContext), m_y->currentValue()->value(lengthContext)));
path.transform(calculateAnimatedLocalTransform());
}
}
void RenderSVGEllipse::calculateRadiiAndCenter()
{
SVGLengthContext lengthContext(&graphicsElement());
m_center = FloatPoint(
lengthContext.valueForLength(style().svgStyle().cx(), LengthModeWidth),
lengthContext.valueForLength(style().svgStyle().cy(), LengthModeHeight));
if (is<SVGCircleElement>(graphicsElement())) {
float radius = lengthContext.valueForLength(style().svgStyle().r());
m_radii = FloatSize(radius, radius);
return;
}
ASSERT(is<SVGEllipseElement>(graphicsElement()));
m_radii = FloatSize(
lengthContext.valueForLength(style().svgStyle().rx(), LengthModeWidth),
lengthContext.valueForLength(style().svgStyle().ry(), LengthModeHeight));
}
void LayoutSVGEllipse::calculateRadiiAndCenter()
{
ASSERT(element());
SVGLengthContext lengthContext(element());
m_center = FloatPoint(
lengthContext.valueForLength(style()->svgStyle().cx(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(style()->svgStyle().cy(), styleRef(), SVGLengthMode::Height));
if (isSVGCircleElement(*element())) {
float radius = lengthContext.valueForLength(style()->svgStyle().r(), styleRef(), SVGLengthMode::Other);
m_radii = FloatSize(radius, radius);
} else {
m_radii = FloatSize(
lengthContext.valueForLength(style()->svgStyle().rx(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(style()->svgStyle().ry(), styleRef(), SVGLengthMode::Height));
}
}
void RenderSVGForeignObject::layout()
{
StackStats::LayoutCheckPoint layoutCheckPoint;
ASSERT(needsLayout());
ASSERT(!view()->layoutStateEnabled()); // RenderSVGRoot disables layoutState for the SVG rendering tree.
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
SVGForeignObjectElement* foreign = static_cast<SVGForeignObjectElement*>(node());
bool updateCachedBoundariesInParents = false;
if (m_needsTransformUpdate) {
m_localTransform = foreign->animatedLocalTransform();
m_needsTransformUpdate = false;
updateCachedBoundariesInParents = true;
}
FloatRect oldViewport = m_viewport;
// Cache viewport boundaries
SVGLengthContext lengthContext(foreign);
FloatPoint viewportLocation(foreign->x().value(lengthContext), foreign->y().value(lengthContext));
m_viewport = FloatRect(viewportLocation, FloatSize(foreign->width().value(lengthContext), foreign->height().value(lengthContext)));
if (!updateCachedBoundariesInParents)
updateCachedBoundariesInParents = oldViewport != m_viewport;
// Set box origin to the foreignObject x/y translation, so positioned objects in XHTML content get correct
// positions. A regular RenderBoxModelObject would pull this information from RenderStyle - in SVG those
// properties are ignored for non <svg> elements, so we mimic what happens when specifying them through CSS.
// FIXME: Investigate in location rounding issues - only affects RenderSVGForeignObject & RenderSVGText
setLocation(roundedIntPoint(viewportLocation));
bool layoutChanged = everHadLayout() && selfNeedsLayout();
RenderBlock::layout();
ASSERT(!needsLayout());
// If our bounds changed, notify the parents.
if (updateCachedBoundariesInParents)
RenderSVGBlock::setNeedsBoundariesUpdate();
// Invalidate all resources of this client if our layout changed.
if (layoutChanged)
SVGResourcesCache::clientLayoutChanged(this);
repainter.repaintAfterLayout();
}
void LayoutSVGViewportContainer::calcViewport()
{
SVGElement* element = this->element();
ASSERT(element);
if (!isSVGSVGElement(*element))
return;
SVGSVGElement* svg = toSVGSVGElement(element);
FloatRect oldViewport = m_viewport;
SVGLengthContext lengthContext(element);
m_viewport = FloatRect(svg->x()->currentValue()->value(lengthContext), svg->y()->currentValue()->value(lengthContext), svg->width()->currentValue()->value(lengthContext), svg->height()->currentValue()->value(lengthContext));
if (oldViewport != m_viewport) {
setNeedsBoundariesUpdate();
setNeedsTransformUpdate();
}
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const
{
AffineTransform viewBoxTransform;
if (hasAttribute(SVGNames::viewBoxAttr)) {
FloatSize size = currentViewportSize();
viewBoxTransform = viewBoxToViewTransform(size.width(), size.height());
}
AffineTransform transform;
if (!isOutermostSVGSVGElement()) {
SVGLengthContext lengthContext(this);
transform.translate(x().value(lengthContext), y().value(lengthContext));
} else if (mode == SVGLocatable::ScreenScope) {
if (RenderObject* renderer = this->renderer()) {
FloatPoint location;
float zoomFactor = 1;
// At the SVG/HTML boundary (aka RenderSVGRoot), we apply the localToBorderBoxTransform
// to map an element from SVG viewport coordinates to CSS box coordinates.
// RenderSVGRoot's localToAbsolute method expects CSS box coordinates.
// We also need to adjust for the zoom level factored into CSS coordinates (bug #96361).
if (renderer->isSVGRoot()) {
location = toRenderSVGRoot(renderer)->localToBorderBoxTransform().mapPoint(location);
zoomFactor = 1 / renderer->style()->effectiveZoom();
}
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
location = renderer->localToAbsolute(location, UseTransforms);
location.scale(zoomFactor, zoomFactor);
// Be careful here! localToBorderBoxTransform() included the x/y offset coming from the viewBoxToViewTransform(),
// so we have to subtract it here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(), location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (FrameView* view = document()->view()) {
LayoutSize scrollOffset = view->scrollOffset();
scrollOffset.scale(zoomFactor);
transform.translate(-scrollOffset.width(), -scrollOffset.height());
}
}
}
return transform.multiply(viewBoxTransform);
}
void LayoutSVGForeignObject::layout()
{
ASSERT(needsLayout());
SVGForeignObjectElement* foreign = toSVGForeignObjectElement(node());
bool updateCachedBoundariesInParents = false;
if (m_needsTransformUpdate) {
m_localTransform = foreign->calculateAnimatedLocalTransform();
m_needsTransformUpdate = false;
updateCachedBoundariesInParents = true;
}
FloatRect oldViewport = m_viewport;
// Cache viewport boundaries
SVGLengthContext lengthContext(foreign);
FloatPoint viewportLocation(
lengthContext.valueForLength(styleRef().svgStyle().x(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().svgStyle().y(), styleRef(), SVGLengthMode::Height));
m_viewport = FloatRect(viewportLocation, FloatSize(
lengthContext.valueForLength(styleRef().width(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().height(), styleRef(), SVGLengthMode::Height)));
if (!updateCachedBoundariesInParents)
updateCachedBoundariesInParents = oldViewport != m_viewport;
// Set box origin to the foreignObject x/y translation, so positioned objects in XHTML content get correct
// positions. A regular LayoutBoxModelObject would pull this information from ComputedStyle - in SVG those
// properties are ignored for non <svg> elements, so we mimic what happens when specifying them through CSS.
// FIXME: Investigate in location rounding issues - only affects LayoutSVGForeignObject & LayoutSVGText
setLocation(roundedIntPoint(viewportLocation));
bool layoutChanged = everHadLayout() && selfNeedsLayout();
LayoutBlock::layout();
ASSERT(!needsLayout());
// If our bounds changed, notify the parents.
if (updateCachedBoundariesInParents)
LayoutSVGBlock::setNeedsBoundariesUpdate();
// Invalidate all resources of this client if our layout changed.
if (layoutChanged)
SVGResourcesCache::clientLayoutChanged(this);
}
void LayoutSVGRect::updateShapeFromElement()
{
m_usePathFallback = false;
// Fallback to LayoutSVGShape and path-based hit detection if the rect
// has rounded corners or a non-scaling or non-simple stroke.
SVGLengthContext lengthContext(toSVGRectElement(element()));
if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
|| lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
|| hasNonScalingStroke()
|| !definitelyHasSimpleStroke(style()->svgStyle())) {
LayoutSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
}
clearPath();
}
static TextStream& operator<<(TextStream& ts, const RenderSVGShape& shape)
{
writePositionAndStyle(ts, shape);
ASSERT(shape.node()->isSVGElement());
SVGElement* svgElement = toSVGElement(shape.node());
SVGLengthContext lengthContext(svgElement);
if (svgElement->hasTagName(SVGNames::rectTag)) {
SVGRectElement* element = static_cast<SVGRectElement*>(svgElement);
writeNameValuePair(ts, "x", element->x().value(lengthContext));
writeNameValuePair(ts, "y", element->y().value(lengthContext));
writeNameValuePair(ts, "width", element->width().value(lengthContext));
writeNameValuePair(ts, "height", element->height().value(lengthContext));
} else if (svgElement->hasTagName(SVGNames::lineTag)) {
SVGLineElement* element = static_cast<SVGLineElement*>(svgElement);
writeNameValuePair(ts, "x1", element->x1().value(lengthContext));
writeNameValuePair(ts, "y1", element->y1().value(lengthContext));
writeNameValuePair(ts, "x2", element->x2().value(lengthContext));
writeNameValuePair(ts, "y2", element->y2().value(lengthContext));
} else if (svgElement->hasTagName(SVGNames::ellipseTag)) {
SVGEllipseElement* element = static_cast<SVGEllipseElement*>(svgElement);
writeNameValuePair(ts, "cx", element->cx().value(lengthContext));
writeNameValuePair(ts, "cy", element->cy().value(lengthContext));
writeNameValuePair(ts, "rx", element->rx().value(lengthContext));
writeNameValuePair(ts, "ry", element->ry().value(lengthContext));
} else if (svgElement->hasTagName(SVGNames::circleTag)) {
SVGCircleElement* element = static_cast<SVGCircleElement*>(svgElement);
writeNameValuePair(ts, "cx", element->cx().value(lengthContext));
writeNameValuePair(ts, "cy", element->cy().value(lengthContext));
writeNameValuePair(ts, "r", element->r().value(lengthContext));
} else if (svgElement->hasTagName(SVGNames::polygonTag) || svgElement->hasTagName(SVGNames::polylineTag)) {
SVGPolyElement* element = static_cast<SVGPolyElement*>(svgElement);
writeNameAndQuotedValue(ts, "points", element->pointList().valueAsString());
} else if (svgElement->hasTagName(SVGNames::pathTag)) {
SVGPathElement* element = toSVGPathElement(svgElement);
String pathString;
// FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
buildStringFromByteStream(element->pathByteStream(), pathString, NormalizedParsing);
writeNameAndQuotedValue(ts, "data", pathString);
} else
ASSERT_NOT_REACHED();
return ts;
}
void RenderSVGRect::updateShapeFromElement()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_fillBoundingBox = FloatRect();
m_innerStrokeRect = FloatRect();
m_outerStrokeRect = FloatRect();
SVGRectElement* rect = static_cast<SVGRectElement*>(node());
ASSERT(rect);
// Fallback to RenderSVGShape if rect has rounded corners or a non-scaling stroke.
if (rect->hasAttribute(SVGNames::rxAttr) || rect->hasAttribute(SVGNames::ryAttr) || hasNonScalingStroke()) {
RenderSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
} else
m_usePathFallback = false;
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(rect->width().value(lengthContext), rect->height().value(lengthContext));
if (boundingBoxSize.isEmpty())
return;
m_fillBoundingBox = FloatRect(FloatPoint(rect->x().value(lengthContext), rect->y().value(lengthContext)), boundingBoxSize);
// To decide if the stroke contains a point we create two rects which represent the inner and
// the outer stroke borders. A stroke contains the point, if the point is between them.
m_innerStrokeRect = m_fillBoundingBox;
m_outerStrokeRect = m_fillBoundingBox;
if (style()->svgStyle()->hasStroke()) {
float strokeWidth = this->strokeWidth();
m_innerStrokeRect.inflate(-strokeWidth / 2);
m_outerStrokeRect.inflate(strokeWidth / 2);
}
m_strokeBoundingBox = m_outerStrokeRect;
#if USE(CG)
// CoreGraphics can inflate the stroke by 1px when drawing a rectangle with antialiasing disabled at non-integer coordinates, we need to compensate.
if (style()->svgStyle()->shapeRendering() == SR_CRISPEDGES)
m_strokeBoundingBox.inflate(1);
#endif
}
void FEImage::applySoftware()
{
RenderObject* renderer = referencedRenderer();
if (!m_image && !renderer)
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
IntPoint paintLocation = absolutePaintRect().location();
resultImage->context()->translate(-paintLocation.x(), -paintLocation.y());
// FEImage results are always in ColorSpaceDeviceRGB
setResultColorSpace(ColorSpaceDeviceRGB);
FloatRect destRect = filter()->mapLocalRectToAbsoluteRect(filterPrimitiveSubregion());
FloatRect srcRect;
if (!renderer) {
srcRect = FloatRect(FloatPoint(), m_image->size());
m_preserveAspectRatio->transformRect(destRect, srcRect);
resultImage->context()->drawImage(m_image.get(), destRect, srcRect);
return;
}
SVGElement* contextNode = toSVGElement(renderer->node());
if (contextNode->hasRelativeLengths()) {
// FIXME: This fixes relative lengths but breaks non-relative ones (see crbug/260709).
SVGLengthContext lengthContext(contextNode);
FloatSize viewportSize;
// If we're referencing an element with percentage units, eg. <rect with="30%"> those values were resolved against the viewport.
// Build up a transformation that maps from the viewport space to the filter primitive subregion.
if (lengthContext.determineViewport(viewportSize))
resultImage->context()->concatCTM(makeMapBetweenRects(FloatRect(FloatPoint(), viewportSize), destRect));
} else {
resultImage->context()->translate(destRect.x(), destRect.y());
resultImage->context()->concatCTM(filter()->absoluteTransform());
}
AffineTransform contentTransformation;
SVGRenderingContext::renderSubtree(resultImage->context(), renderer, contentTransformation);
}
bool SVGTextLayoutEngine::parentDefinesTextLength(RenderObject* parent) const
{
RenderObject* currentParent = parent;
while (currentParent) {
if (SVGTextContentElement* textContentElement = SVGTextContentElement::elementFromRenderer(currentParent)) {
SVGLengthContext lengthContext(textContentElement);
if (textContentElement->lengthAdjust() == SVGLengthAdjustSpacing && textContentElement->specifiedTextLength().value(lengthContext) > 0)
return true;
}
if (currentParent->isSVGText())
return false;
currentParent = currentParent->parent();
}
ASSERT_NOT_REACHED();
return false;
}
static TextStream& operator<<(TextStream& ts, const RenderSVGShape& shape)
{
writePositionAndStyle(ts, shape);
SVGGraphicsElement& svgElement = shape.graphicsElement();
SVGLengthContext lengthContext(&svgElement);
if (isSVGRectElement(svgElement)) {
const SVGRectElement& element = toSVGRectElement(svgElement);
writeNameValuePair(ts, "x", element.x().value(lengthContext));
writeNameValuePair(ts, "y", element.y().value(lengthContext));
writeNameValuePair(ts, "width", element.width().value(lengthContext));
writeNameValuePair(ts, "height", element.height().value(lengthContext));
} else if (isSVGLineElement(svgElement)) {
const SVGLineElement& element = toSVGLineElement(svgElement);
writeNameValuePair(ts, "x1", element.x1().value(lengthContext));
writeNameValuePair(ts, "y1", element.y1().value(lengthContext));
writeNameValuePair(ts, "x2", element.x2().value(lengthContext));
writeNameValuePair(ts, "y2", element.y2().value(lengthContext));
} else if (isSVGEllipseElement(svgElement)) {
const SVGEllipseElement& element = toSVGEllipseElement(svgElement);
writeNameValuePair(ts, "cx", element.cx().value(lengthContext));
writeNameValuePair(ts, "cy", element.cy().value(lengthContext));
writeNameValuePair(ts, "rx", element.rx().value(lengthContext));
writeNameValuePair(ts, "ry", element.ry().value(lengthContext));
} else if (isSVGCircleElement(svgElement)) {
const SVGCircleElement& element = toSVGCircleElement(svgElement);
writeNameValuePair(ts, "cx", element.cx().value(lengthContext));
writeNameValuePair(ts, "cy", element.cy().value(lengthContext));
writeNameValuePair(ts, "r", element.r().value(lengthContext));
} else if (svgElement.hasTagName(SVGNames::polygonTag) || svgElement.hasTagName(SVGNames::polylineTag)) {
const SVGPolyElement& element = toSVGPolyElement(svgElement);
writeNameAndQuotedValue(ts, "points", element.pointList().valueAsString());
} else if (isSVGPathElement(svgElement)) {
const SVGPathElement& element = toSVGPathElement(svgElement);
String pathString;
// FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
buildStringFromByteStream(element.pathByteStream(), pathString, NormalizedParsing);
writeNameAndQuotedValue(ts, "data", pathString);
} else
ASSERT_NOT_REACHED();
return ts;
}
static TextStream& operator<<(TextStream& ts, const LayoutSVGShape& shape)
{
writePositionAndStyle(ts, shape);
SVGElement* svgElement = shape.element();
ASSERT(svgElement);
SVGLengthContext lengthContext(svgElement);
if (isSVGRectElement(*svgElement)) {
SVGRectElement& element = toSVGRectElement(*svgElement);
writeNameValuePair(ts, "x", element.x()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "y", element.y()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "width", element.width()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "height", element.height()->currentValue()->value(lengthContext));
} else if (isSVGLineElement(*svgElement)) {
SVGLineElement& element = toSVGLineElement(*svgElement);
writeNameValuePair(ts, "x1", element.x1()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "y1", element.y1()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "x2", element.x2()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "y2", element.y2()->currentValue()->value(lengthContext));
} else if (isSVGEllipseElement(*svgElement)) {
SVGEllipseElement& element = toSVGEllipseElement(*svgElement);
writeNameValuePair(ts, "cx", element.cx()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "cy", element.cy()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "rx", element.rx()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "ry", element.ry()->currentValue()->value(lengthContext));
} else if (isSVGCircleElement(*svgElement)) {
SVGCircleElement& element = toSVGCircleElement(*svgElement);
writeNameValuePair(ts, "cx", element.cx()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "cy", element.cy()->currentValue()->value(lengthContext));
writeNameValuePair(ts, "r", element.r()->currentValue()->value(lengthContext));
} else if (isSVGPolyElement(*svgElement)) {
writeNameAndQuotedValue(ts, "points", toSVGPolyElement(*svgElement).points()->currentValue()->valueAsString());
} else if (isSVGPathElement(*svgElement)) {
String pathString;
// FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
buildStringFromByteStream(*toSVGPathElement(*svgElement).pathByteStream(), pathString, NormalizedParsing);
writeNameAndQuotedValue(ts, "data", pathString);
} else {
ASSERT_NOT_REACHED();
}
return ts;
}
void LayoutSVGRect::updateShapeFromElement()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_fillBoundingBox = FloatRect();
m_strokeBoundingBox = FloatRect();
m_usePathFallback = false;
SVGRectElement* rect = toSVGRectElement(element());
ASSERT(rect);
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(
lengthContext.valueForLength(styleRef().width(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().height(), styleRef(), SVGLengthMode::Height));
// Spec: "A negative value is an error."
if (boundingBoxSize.width() < 0 || boundingBoxSize.height() < 0)
return;
// Spec: "A value of zero disables rendering of the element."
if (!boundingBoxSize.isEmpty()) {
// Fallback to LayoutSVGShape and path-based hit detection if the rect
// has rounded corners or a non-scaling or non-simple stroke.
if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
|| lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
|| hasNonScalingStroke()
|| !definitelyHasSimpleStroke()) {
LayoutSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
}
}
m_fillBoundingBox = FloatRect(
FloatPoint(
lengthContext.valueForLength(styleRef().svgStyle().x(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().svgStyle().y(), styleRef(), SVGLengthMode::Height)),
boundingBoxSize);
m_strokeBoundingBox = m_fillBoundingBox;
if (style()->svgStyle().hasStroke())
m_strokeBoundingBox.inflate(strokeWidth() / 2);
}
v8::Handle<v8::Value> V8SVGLength::convertToSpecifiedUnitsCallback(const v8::Arguments& args)
{
INC_STATS("DOM.SVGLength.convertToSpecifiedUnits");
SVGPropertyTearOff<SVGLength>* wrapper = V8SVGLength::toNative(args.Holder());
if (wrapper->role() == AnimValRole)
return V8Proxy::setDOMException(NO_MODIFICATION_ALLOWED_ERR, args.GetIsolate());
if (args.Length() < 1)
return V8Proxy::throwNotEnoughArgumentsError(args.GetIsolate());
SVGLength& imp = wrapper->propertyReference();
ExceptionCode ec = 0;
EXCEPTION_BLOCK(int, unitType, toUInt32(args[0]));
SVGLengthContext lengthContext(wrapper->contextElement());
imp.convertToSpecifiedUnits(unitType, lengthContext, ec);
if (UNLIKELY(ec))
return V8Proxy::setDOMException(ec, args.GetIsolate());
wrapper->commitChange();
return v8::Handle<v8::Value>();
}
FloatRect SVGLengthContext::resolveRectangle(const SVGElement* context,
SVGUnitTypes::SVGUnitType type,
const FloatRect& viewport,
const SVGLength& x,
const SVGLength& y,
const SVGLength& width,
const SVGLength& height) {
DCHECK_NE(SVGUnitTypes::kSvgUnitTypeUnknown, type);
if (type != SVGUnitTypes::kSvgUnitTypeUserspaceonuse) {
const FloatSize& viewportSize = viewport.size();
return FloatRect(
convertValueFromPercentageToUserUnits(x, viewportSize) + viewport.x(),
convertValueFromPercentageToUserUnits(y, viewportSize) + viewport.y(),
convertValueFromPercentageToUserUnits(width, viewportSize),
convertValueFromPercentageToUserUnits(height, viewportSize));
}
SVGLengthContext lengthContext(context);
return FloatRect(x.value(lengthContext), y.value(lengthContext),
width.value(lengthContext), height.value(lengthContext));
}
void SVGUseElement::toClipPath(Path& path)
{
ASSERT(path.isEmpty());
Node* n = m_targetElementInstance ? m_targetElementInstance->shadowTreeElement() : 0;
if (!n)
return;
if (n->isSVGElement() && toSVGElement(*n).isSVGGraphicsElement()) {
if (!isDirectReference(toSVGElement(*n))) {
// Spec: Indirect references are an error (14.3.5)
document().accessSVGExtensions()->reportError("Not allowed to use indirect reference in <clip-path>");
} else {
toSVGGraphicsElement(*n).toClipPath(path);
// FIXME: Avoid manual resolution of x/y here. Its potentially harmful.
SVGLengthContext lengthContext(this);
path.translate(FloatSize(x().value(lengthContext), y().value(lengthContext)));
path.transform(animatedLocalTransform());
}
}
}
void V8SVGLength::valueAttrSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
SVGPropertyTearOff<SVGLength>* wrapper = V8SVGLength::toNative(info.Holder());
if (wrapper->isReadOnly()) {
setDOMException(NoModificationAllowedError, info.GetIsolate());
return;
}
if (!isUndefinedOrNull(value) && !value->IsNumber() && !value->IsBoolean()) {
throwTypeError(info.GetIsolate());
return;
}
SVGLength& imp = wrapper->propertyReference();
ExceptionState es(info.GetIsolate());
SVGLengthContext lengthContext(wrapper->contextElement());
imp.setValue(static_cast<float>(value->NumberValue()), lengthContext, es);
if (es.throwIfNeeded())
return;
wrapper->commitChange();
}
void SVGLengthTearOff::convertToSpecifiedUnits(unsigned short unitType, ExceptionState& exceptionState)
{
if (isImmutable()) {
exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
return;
}
if (!isValidLengthUnit(unitType)) {
exceptionState.throwDOMException(NotSupportedError, "Cannot convert to unknown or invalid units (" + String::number(unitType) + ").");
return;
}
if ((target()->isRelative() || SVGLength::isRelativeUnit(toCSSUnitType(unitType)))
&& !canResolveRelativeUnits(contextElement())) {
exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length.");
return;
}
SVGLengthContext lengthContext(contextElement());
target()->convertToSpecifiedUnits(toCSSUnitType(unitType), lengthContext);
commitChange();
}
void V8SVGLength::convertToSpecifiedUnitsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
{
SVGPropertyTearOff<SVGLength>* wrapper = V8SVGLength::toNative(info.Holder());
if (wrapper->isReadOnly()) {
setDOMException(NoModificationAllowedError, info.GetIsolate());
return;
}
if (info.Length() < 1) {
throwTypeError(ExceptionMessages::failedToExecute("convertToSpecifiedUnits", "SVGLength", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
return;
}
SVGLength& imp = wrapper->propertyReference();
ExceptionState exceptionState(info.Holder(), info.GetIsolate());
V8TRYCATCH_VOID(int, unitType, toUInt32(info[0]));
SVGLengthContext lengthContext(wrapper->contextElement());
imp.convertToSpecifiedUnits(unitType, lengthContext, exceptionState);
if (exceptionState.throwIfNeeded())
return;
wrapper->commitChange();
}
void SVGAnimatedLengthListAnimator::calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString)
{
ASSERT(m_contextElement);
ASSERT(m_animationElement);
SVGAnimateElement* animationElement = static_cast<SVGAnimateElement*>(m_animationElement);
animationElement->determinePropertyValueTypes(fromString, byString);
from = constructFromString(fromString);
to = constructFromString(byString);
SVGLengthList& fromLengthList = from->lengthList();
SVGLengthList& toLengthList = to->lengthList();
unsigned itemsCount = fromLengthList.size();
if (itemsCount != toLengthList.size())
return;
SVGLengthContext lengthContext(m_contextElement);
ExceptionCode ec = 0;
for (unsigned i = 0; i < itemsCount; ++i) {
toLengthList[i].setValue(toLengthList[i].value(lengthContext) + fromLengthList[i].value(lengthContext), lengthContext, ec);
ASSERT(!ec);
}
}
void V8SVGLength::convertToSpecifiedUnitsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
{
SVGPropertyTearOff<SVGLength>* wrapper = V8SVGLength::toNative(args.Holder());
if (wrapper->isReadOnly()) {
setDOMException(NoModificationAllowedError, args.GetIsolate());
return;
}
if (args.Length() < 1) {
throwNotEnoughArgumentsError(args.GetIsolate());
return;
}
SVGLength& imp = wrapper->propertyReference();
ExceptionState es(args.GetIsolate());
V8TRYCATCH_VOID(int, unitType, toUInt32(args[0]));
SVGLengthContext lengthContext(wrapper->contextElement());
imp.convertToSpecifiedUnits(unitType, lengthContext, es);
if (es.throwIfNeeded())
return;
wrapper->commitChange();
}
void V8SVGLength::valueAccessorSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
{
INC_STATS("DOM.SVGLength.value._set");
SVGPropertyTearOff<SVGLength>* wrapper = V8SVGLength::toNative(info.Holder());
if (wrapper->role() == AnimValRole) {
V8Proxy::setDOMException(NO_MODIFICATION_ALLOWED_ERR, info.GetIsolate());
return;
}
if (!isUndefinedOrNull(value) && !value->IsNumber() && !value->IsBoolean()) {
V8Proxy::throwTypeError(0, info.GetIsolate());
return;
}
SVGLength& imp = wrapper->propertyReference();
ExceptionCode ec = 0;
SVGLengthContext lengthContext(wrapper->contextElement());
imp.setValue(static_cast<float>(value->NumberValue()), lengthContext, ec);
if (UNLIKELY(ec))
V8Proxy::setDOMException(ec, info.GetIsolate());
else
wrapper->commitChange();
}
float SVGTextLayoutEngineBaseline::calculateBaselineShift(const SVGRenderStyle* style, SVGElement* contextElement) const
{
if (style->baselineShift() == BS_LENGTH) {
SVGLength baselineShiftValueLength = style->baselineShiftValue();
if (baselineShiftValueLength.unitType() == LengthTypePercentage)
return baselineShiftValueLength.valueAsPercentage() * m_font.pixelSize();
SVGLengthContext lengthContext(contextElement);
return baselineShiftValueLength.value(lengthContext);
}
switch (style->baselineShift()) {
case BS_BASELINE:
return 0;
case BS_SUB:
return -m_font.fontMetrics().floatHeight() / 2;
case BS_SUPER:
return m_font.fontMetrics().floatHeight() / 2;
default:
ASSERT_NOT_REACHED();
return 0;
}
}