bool RenderSVGRoot::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction)
{
IntPoint pointInContainer(_x, _y);
IntSize containerToParentOffset(_tx, _ty);
IntPoint pointInParent = pointInContainer - containerToParentOffset;
IntPoint pointInBorderBox = pointInParent - parentOriginToBorderBox();
// Note: For now, we're ignoring hits to border and padding for <svg>
IntPoint pointInContentBox = pointInBorderBox - borderOriginToContentBox();
if (!contentBoxRect().contains(pointInContentBox))
return false;
IntPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
// FIXME: CSS/HTML assumes the local point is relative to the border box, right?
updateHitTestResult(result, pointInBorderBox);
return true;
}
}
// Spec: Only graphical elements can be targeted by the mouse, so we don't check self here.
// 16.4: "If there are no graphics elements whose relevant graphics content is under the pointer (i.e., there is no target element), the event is not dispatched."
return false;
}
bool RenderSVGRoot::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const IntPoint& pointInContainer, const IntPoint& accumulatedOffset, HitTestAction hitTestAction)
{
IntPoint pointInParent = pointInContainer - toSize(accumulatedOffset);
IntPoint pointInBorderBox = pointInParent - parentOriginToBorderBox();
// Note: For now, we're ignoring hits to border and padding for <svg>
IntPoint pointInContentBox = pointInBorderBox - borderOriginToContentBox();
if (!contentBoxRect().contains(pointInContentBox))
return false;
IntPoint localPoint = localToParentTransform().inverse().mapPoint(pointInParent);
for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
// FIXME: CSS/HTML assumes the local point is relative to the border box, right?
updateHitTestResult(result, pointInBorderBox);
// FIXME: nodeAtFloatPoint() doesn't handle rect-based hit tests yet.
result.addNodeToRectBasedTestResult(child->node(), pointInContainer);
return true;
}
}
// If we didn't early exit above, we've just hit the container <svg> element. Unlike SVG 1.1, 2nd Edition allows container elements to be hit.
if (hitTestAction == HitTestBlockBackground && style()->pointerEvents() != PE_NONE) {
// Only return true here, if the last hit testing phase 'BlockBackground' is executed. If we'd return true in the 'Foreground' phase,
// hit testing would stop immediately. For SVG only trees this doesn't matter. Though when we have a <foreignObject> subtree we need
// to be able to detect hits on the background of a <div> element. If we'd return true here in the 'Foreground' phase, we are not able
// to detect these hits anymore.
updateHitTestResult(result, roundedIntPoint(localPoint));
return true;
}
return false;
}
// RenderBox methods will expect coordinates w/o any transforms in coordinates
// relative to our borderBox origin. This method gives us exactly that.
AffineTransform RenderSVGRoot::localToBorderBoxTransform() const
{
IntSize borderAndPadding = borderOriginToContentBox();
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
float scale = svg->currentScale();
AffineTransform ctm(scale, 0, 0, scale, borderAndPadding.width(), borderAndPadding.height());
ctm.translate(svg->currentTranslate().x(), svg->currentTranslate().y());
return svg->viewBoxToViewTransform(width(), height()) * ctm;
}
// RenderBox methods will expect coordinates w/o any transforms in coordinates
// relative to our borderBox origin. This method gives us exactly that.
AffineTransform RenderSVGRoot::localToBorderBoxTransform() const
{
IntSize borderAndPadding = borderOriginToContentBox();
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
float scale = style()->effectiveZoom();
FloatPoint translate = svg->currentTranslate();
AffineTransform ctm(scale, 0, 0, scale, borderAndPadding.width() + translate.x(), borderAndPadding.height() + translate.y());
return ctm * svg->viewBoxToViewTransform(width() / scale, height() / scale);
}
