JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionGetBBox(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
JSC::JSValue result = toJS(exec, JSSVGStaticPODTypeWrapper<FloatRect>::create(imp->getBBox()).get(), imp);
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionCreateSVGAngle(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
JSC::JSValue result = toJS(exec, WTF::getPtr(imp->createSVGAngle()), imp);
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionSetCurrentTime(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
float seconds = args.at(0).toFloat(exec);
imp->setCurrentTime(seconds);
return jsUndefined();
}
bool SVGImage::usesContainerSize() const
{
if (!m_page)
return false;
Frame* frame = m_page->mainFrame();
SVGSVGElement* rootElement = static_cast<SVGDocument*>(frame->document())->rootElement();
if (!rootElement)
return false;
if (RenderSVGRoot* renderer = toRenderSVGRoot(rootElement->renderer()))
return !renderer->containerSize().isEmpty();
return false;
}
TransformationMatrix RenderSVGViewportContainer::viewportTransform() const
{
if (element()->hasTagName(SVGNames::svgTag)) {
SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
return svg->viewBoxToViewTransform(viewport().width(), viewport().height());
} else if (element()->hasTagName(SVGNames::markerTag)) {
SVGMarkerElement* marker = static_cast<SVGMarkerElement*>(element());
return marker->viewBoxToViewTransform(viewport().width(), viewport().height());
}
return TransformationMatrix();
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionGetCurrentTime(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
JSC::JSValue result = jsNumber(exec, imp->getCurrentTime());
return result;
}
// RenderBox methods will expect coordinates w/o any transforms in coordinates
// relative to our borderBox origin. This method gives us exactly that.
void RenderSVGRoot::buildLocalToBorderBoxTransform()
{
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
float scale = style()->effectiveZoom();
SVGPoint translate = svg->currentTranslate();
LayoutSize borderAndPadding(borderLeft() + paddingLeft(), borderTop() + paddingTop());
m_localToBorderBoxTransform = svg->viewBoxToViewTransform(contentWidth() / scale, contentHeight() / scale);
if (borderAndPadding.isEmpty() && scale == 1 && translate == SVGPoint::zero())
return;
m_localToBorderBoxTransform = AffineTransform(scale, 0, 0, scale, borderAndPadding.width() + translate.x(), borderAndPadding.height() + translate.y()) * m_localToBorderBoxTransform;
}
// LayoutBox methods will expect coordinates w/o any transforms in coordinates
// relative to our borderBox origin. This method gives us exactly that.
void LayoutSVGRoot::buildLocalToBorderBoxTransform()
{
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
float scale = style()->effectiveZoom();
FloatPoint translate = svg->currentTranslate();
LayoutSize borderAndPadding(borderLeft() + paddingLeft(), borderTop() + paddingTop());
m_localToBorderBoxTransform = svg->viewBoxToViewTransform(contentWidth() / scale, contentHeight() / scale);
AffineTransform viewToBorderBoxTransform(scale, 0, 0, scale, borderAndPadding.width() + translate.x(), borderAndPadding.height() + translate.y());
m_localToBorderBoxTransform.preMultiply(viewToBorderBoxTransform);
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
// An empty viewport disables rendering.
if (pixelSnappedBorderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitly disabled it.
if (paintInfo.context->paintingDisabled())
return;
// An empty viewBox also disables rendering.
// (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
if (svg->hasEmptyViewBox())
return;
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter())
return;
}
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip
if (shouldApplyViewportClip())
childPaintInfo.context->clip(pixelSnappedIntRect(overflowClipRect(paintOffset)));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x(), adjustedPaintOffset.y()) * localToBorderBoxTransform());
// SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
// changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
{
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering)
RenderBox::paint(childPaintInfo, LayoutPoint());
}
childPaintInfo.context->restore();
}
void SVGImage::drawSVGToImageBuffer(ImageBuffer* buffer, const IntSize& size, float zoom, ShouldClearBuffer shouldClear)
{
// FIXME: This doesn't work correctly with animations. If an image contains animations, that say run for 2 seconds,
// and we currently have one <img> that displays us. If we open another document referencing the same SVGImage it
// will display the document at a time where animations already ran - even though it has its own ImageBuffer.
// We currently don't implement SVGSVGElement::setCurrentTime, and can NOT go back in time, once animations started.
// There's no way to fix this besides avoiding style/attribute mutations from SVGAnimationElement.
ASSERT(buffer);
ASSERT(!size.isEmpty());
if (!m_page)
return;
Frame* frame = m_page->mainFrame();
SVGSVGElement* rootElement = static_cast<SVGDocument*>(frame->document())->rootElement();
if (!rootElement)
return;
RenderSVGRoot* renderer = toRenderSVGRoot(rootElement->renderer());
if (!renderer)
return;
// Draw image at requested size.
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due this relayout.
setImageObserver(0);
renderer->setContainerSize(size);
frame->view()->resize(this->size());
if (zoom != 1)
frame->setPageZoomFactor(zoom);
// Eventually clear image buffer.
IntRect rect(IntPoint(), size);
if (shouldClear == ClearImageBuffer)
buffer->context()->clearRect(rect);
// Draw SVG on top of ImageBuffer.
draw(buffer->context(), rect, rect, ColorSpaceDeviceRGB, CompositeSourceOver);
// Reset container size & zoom to initial state. Otherwhise the size() of this
// image would return whatever last size was set by drawSVGToImageBuffer().
if (zoom != 1)
frame->setPageZoomFactor(1);
renderer->setContainerSize(IntSize());
frame->view()->resize(this->size());
if (frame->view()->needsLayout())
frame->view()->layout();
setImageObserver(observer);
}
void SVGSVGElement::setupInitialView(const String& fragmentIdentifier, Element* anchorNode)
{
RenderObject* renderer = this->renderer();
SVGViewSpec* view = m_viewSpec.get();
if (view)
view->reset();
bool hadUseCurrentView = m_useCurrentView;
m_useCurrentView = false;
if (fragmentIdentifier.startsWith("xpointer(")) {
// FIXME: XPointer references are ignored (https://bugs.webkit.org/show_bug.cgi?id=17491)
if (renderer && hadUseCurrentView)
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
if (fragmentIdentifier.startsWith("svgView(")) {
if (!view)
view = currentView(); // Create the SVGViewSpec.
if (view->parseViewSpec(fragmentIdentifier))
m_useCurrentView = true;
else
view->reset();
if (renderer && (hadUseCurrentView || m_useCurrentView))
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
// Spec: If the SVG fragment identifier addresses a ‘view’ element within an SVG document (e.g., MyDrawing.svg#MyView
// or MyDrawing.svg#xpointer(id('MyView'))) then the closest ancestor ‘svg’ element is displayed in the viewport.
// Any view specification attributes included on the given ‘view’ element override the corresponding view specification
// attributes on the closest ancestor ‘svg’ element.
if (anchorNode && anchorNode->hasTagName(SVGNames::viewTag)) {
if (SVGViewElement* viewElement = anchorNode->hasTagName(SVGNames::viewTag) ? static_cast<SVGViewElement*>(anchorNode) : 0) {
SVGElement* element = SVGLocatable::nearestViewportElement(viewElement);
if (element->hasTagName(SVGNames::svgTag)) {
SVGSVGElement* svg = static_cast<SVGSVGElement*>(element);
svg->inheritViewAttributes(viewElement);
if (RenderObject* renderer = svg->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
}
return;
}
// FIXME: We need to decide which <svg> to focus on, and zoom to it.
// FIXME: We need to actually "highlight" the viewTarget(s).
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionCreateSVGTransformFromMatrix(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
TransformationMatrix matrix = toSVGMatrix(args.at(0));
JSC::JSValue result = toJS(exec, JSSVGStaticPODTypeWrapper<SVGTransform>::create(imp->createSVGTransformFromMatrix(matrix)).get(), imp);
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionSuspendRedraw(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
unsigned maxWaitMilliseconds = args.at(0).toInt32(exec);
JSC::JSValue result = jsNumber(exec, imp->suspendRedraw(maxWaitMilliseconds));
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionHasExtension(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
const UString& extension = args.at(0).toString(exec);
JSC::JSValue result = jsBoolean(imp->hasExtension(extension));
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionGetPresentationAttribute(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
const UString& name = args.at(0).toString(exec);
JSC::JSValue result = toJS(exec, WTF::getPtr(imp->getPresentationAttribute(name)));
return result;
}
void SVGDocumentExtensions::dispatchSVGLoadEventToOutermostSVGElements()
{
Vector<RefPtr<SVGSVGElement> > timeContainers;
timeContainers.appendRange(m_timeContainers.begin(), m_timeContainers.end());
Vector<RefPtr<SVGSVGElement> >::iterator end = timeContainers.end();
for (Vector<RefPtr<SVGSVGElement> >::iterator it = timeContainers.begin(); it != end; ++it) {
SVGSVGElement* outerSVG = (*it).get();
if (!outerSVG->isOutermostSVGSVGElement())
continue;
outerSVG->sendSVGLoadEventIfPossible();
}
}
void SVGImage::setContainerSize(const IntSize& containerSize)
{
if (containerSize.width() <= 0 || containerSize.height() <= 0)
return;
if (!m_frame || !m_frame->document())
return;
SVGSVGElement* rootElement = static_cast<SVGDocument*>(m_frame->document())->rootElement();
if (!rootElement)
return;
rootElement->setContainerSize(containerSize);
}
/* readonly attribute int32_t height; */
NS_IMETHODIMP
VectorImage::GetHeight(int32_t* aHeight)
{
if (mError || !mIsFullyLoaded) {
*aHeight = -1;
} else {
SVGSVGElement* rootElem = mSVGDocumentWrapper->GetRootSVGElem();
MOZ_ASSERT(rootElem, "Should have a root SVG elem, since we finished "
"loading without errors");
*aHeight = rootElem->GetIntrinsicHeight();
}
return *aHeight >= 0 ? NS_OK : NS_ERROR_FAILURE;
}
void SVGImage::setContainerSize(const IntSize& containerSize)
{
if (containerSize.isEmpty())
return;
if (!m_page)
return;
Frame* frame = m_page->mainFrame();
SVGSVGElement* rootElement = static_cast<SVGDocument*>(frame->document())->rootElement();
if (!rootElement)
return;
rootElement->setContainerSize(containerSize);
}
bool
nsSVGInnerSVGFrame::HasChildrenOnlyTransform(gfxMatrix *aTransform) const
{
SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);
if (content->HasViewBoxOrSyntheticViewBox()) {
// XXX Maybe return false if the transform is the identity transform?
if (aTransform) {
*aTransform = content->GetViewBoxTransform();
}
return true;
}
return false;
}
void
SVGDocumentWrapper::FlushImageTransformInvalidation()
{
NS_ABORT_IF_FALSE(!mIgnoreInvalidation, "shouldn't be reentrant");
SVGSVGElement* svgElem = GetRootSVGElem();
if (!svgElem)
return;
mIgnoreInvalidation = true;
svgElem->FlushImageTransformInvalidation();
FlushLayout();
mIgnoreInvalidation = false;
}
void SVGImage::setContainerSize(const IntSize& size)
{
SVGSVGElement* rootElement = svgRootElement(m_page.get());
if (!rootElement)
return;
FrameView* view = frameView();
view->resize(this->containerSize());
LayoutSVGRoot* layoutObject = toLayoutSVGRoot(rootElement->layoutObject());
if (!layoutObject)
return;
layoutObject->setContainerSize(size);
}
void RenderSVGRoot::computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio, bool& isPercentageIntrinsicSize) const
{
// Spec: http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing
// SVG needs to specify how to calculate some intrinsic sizing properties to enable inclusion within other languages.
// The intrinsic width and height of the viewport of SVG content must be determined from the ‘width’ and ‘height’ attributes.
// If either of these are not specified, a value of '100%' must be assumed. Note: the ‘width’ and ‘height’ attributes are not
// the same as the CSS width and height properties. Specifically, percentage values do not provide an intrinsic width or height,
// and do not indicate a percentage of the containing block. Rather, once the viewport is established, they indicate the portion
// of the viewport that is actually covered by image data.
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
Length intrinsicWidthAttribute = svg->intrinsicWidth(SVGSVGElement::IgnoreCSSProperties);
Length intrinsicHeightAttribute = svg->intrinsicHeight(SVGSVGElement::IgnoreCSSProperties);
// The intrinsic aspect ratio of the viewport of SVG content is necessary for example, when including SVG from an ‘object’
// element in HTML styled with CSS. It is possible (indeed, common) for an SVG graphic to have an intrinsic aspect ratio but
// not to have an intrinsic width or height. The intrinsic aspect ratio must be calculated based upon the following rules:
// - The aspect ratio is calculated by dividing a width by a height.
// - If the ‘width’ and ‘height’ of the rootmost ‘svg’ element are both specified with unit identifiers (in, mm, cm, pt, pc,
// px, em, ex) or in user units, then the aspect ratio is calculated from the ‘width’ and ‘height’ attributes after
// resolving both values to user units.
if (intrinsicWidthAttribute.isFixed() || intrinsicHeightAttribute.isFixed()) {
if (intrinsicWidthAttribute.isFixed())
intrinsicSize.setWidth(floatValueForLength(intrinsicWidthAttribute, 0));
if (intrinsicHeightAttribute.isFixed())
intrinsicSize.setHeight(floatValueForLength(intrinsicHeightAttribute, 0));
if (!intrinsicSize.isEmpty())
intrinsicRatio = intrinsicSize.width() / static_cast<double>(intrinsicSize.height());
return;
}
// - If either/both of the ‘width’ and ‘height’ of the rootmost ‘svg’ element are in percentage units (or omitted), the
// aspect ratio is calculated from the width and height values of the ‘viewBox’ specified for the current SVG document
// fragment. If the ‘viewBox’ is not correctly specified, or set to 'none', the intrinsic aspect ratio cannot be
// calculated and is considered unspecified.
intrinsicSize = svg->viewBox().size();
if (!intrinsicSize.isEmpty()) {
// The viewBox can only yield an intrinsic ratio, not an intrinsic size.
intrinsicRatio = intrinsicSize.width() / static_cast<double>(intrinsicSize.height());
intrinsicSize = FloatSize();
return;
}
// If our intrinsic size is in percentage units, return those to the caller through the intrinsicSize. Notify the caller
// about the special situation, by setting isPercentageIntrinsicSize=true, so it knows how to interpret the return values.
if (intrinsicWidthAttribute.isPercent() && intrinsicHeightAttribute.isPercent()) {
isPercentageIntrinsicSize = true;
intrinsicSize = FloatSize(intrinsicWidthAttribute.percent(), intrinsicHeightAttribute.percent());
}
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionUnsuspendRedraw(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
ExceptionCode ec = 0;
unsigned suspendHandleId = args.at(0).toInt32(exec);
imp->unsuspendRedraw(suspendHandleId, ec);
setDOMException(exec, ec);
return jsUndefined();
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionGetEnclosureList(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
FloatRect rect = toSVGRect(args.at(0));
SVGElement* referenceElement = toSVGElement(args.at(1));
JSC::JSValue result = toJS(exec, WTF::getPtr(imp->getEnclosureList(rect, referenceElement)));
return result;
}
JSValue JSC_HOST_CALL jsSVGSVGElementPrototypeFunctionCheckEnclosure(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
UNUSED_PARAM(args);
if (!thisValue.isObject(&JSSVGSVGElement::s_info))
return throwError(exec, TypeError);
JSSVGSVGElement* castedThisObj = static_cast<JSSVGSVGElement*>(asObject(thisValue));
SVGSVGElement* imp = static_cast<SVGSVGElement*>(castedThisObj->impl());
SVGElement* element = toSVGElement(args.at(0));
FloatRect rect = toSVGRect(args.at(1));
JSC::JSValue result = jsBoolean(imp->checkEnclosure(element, rect));
return result;
}
void SVGDocumentExtensions::dispatchSVGLoadEventToOutermostSVGElements()
{
WillBeHeapVector<RefPtrWillBeMember<SVGSVGElement>> timeContainers;
copyToVector(m_timeContainers, timeContainers);
for (const auto& container : timeContainers) {
SVGSVGElement* outerSVG = container.get();
if (!outerSVG->isOutermostSVGSVGElement())
continue;
// don't dispatch the load event document is not wellformed (for XML/standalone svg)
if (outerSVG->document().wellFormed() || !outerSVG->document().isSVGDocument())
outerSVG->sendSVGLoadEventIfPossible();
}
}
/* virtual */ nsSize
nsSVGOuterSVGFrame::GetIntrinsicRatio()
{
// We only have an intrinsic size/ratio if our width and height attributes
// are both specified and set to non-percentage values, or we have a viewBox
// rect: http://www.w3.org/TR/SVGMobile12/coords.html#IntrinsicSizing
SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);
nsSVGLength2 &width = content->mLengthAttributes[SVGSVGElement::ATTR_WIDTH];
nsSVGLength2 &height = content->mLengthAttributes[SVGSVGElement::ATTR_HEIGHT];
if (!width.IsPercentage() && !height.IsPercentage()) {
nsSize ratio(NSToCoordRoundWithClamp(width.GetAnimValue(content)),
NSToCoordRoundWithClamp(height.GetAnimValue(content)));
if (ratio.width < 0) {
ratio.width = 0;
}
if (ratio.height < 0) {
ratio.height = 0;
}
return ratio;
}
SVGViewElement* viewElement = content->GetCurrentViewElement();
const nsSVGViewBoxRect* viewbox = nullptr;
// The logic here should match HasViewBox().
if (viewElement && viewElement->mViewBox.HasRect()) {
viewbox = &viewElement->mViewBox.GetAnimValue();
} else if (content->mViewBox.HasRect()) {
viewbox = &content->mViewBox.GetAnimValue();
}
if (viewbox) {
float viewBoxWidth = viewbox->width;
float viewBoxHeight = viewbox->height;
if (viewBoxWidth < 0.0f) {
viewBoxWidth = 0.0f;
}
if (viewBoxHeight < 0.0f) {
viewBoxHeight = 0.0f;
}
return nsSize(NSToCoordRoundWithClamp(viewBoxWidth),
NSToCoordRoundWithClamp(viewBoxHeight));
}
return nsSVGOuterSVGFrameBase::GetIntrinsicRatio();
}
void SVGImage::computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
{
SVGSVGElement* rootElement = this->rootElement();
if (!rootElement)
return;
intrinsicWidth = rootElement->intrinsicWidth();
intrinsicHeight = rootElement->intrinsicHeight();
if (rootElement->preserveAspectRatio().align() == SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_NONE)
return;
intrinsicRatio = rootElement->viewBox().size();
if (intrinsicRatio.isEmpty() && intrinsicWidth.isFixed() && intrinsicHeight.isFixed())
intrinsicRatio = FloatSize(floatValueForLength(intrinsicWidth, 0), floatValueForLength(intrinsicHeight, 0));
}
gfxMatrix
nsSVGInnerSVGFrame::GetCanvasTM()
{
if (!mCanvasTM) {
NS_ASSERTION(GetParent(), "null parent");
nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(GetParent());
SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);
gfxMatrix tm = content->PrependLocalTransformsTo(parent->GetCanvasTM());
mCanvasTM = new gfxMatrix(tm);
}
return *mCanvasTM;
}
