bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty)
{
tx += m_x;
ty += m_y;
// Hit test the markup box.
if (m_markupBox) {
RenderStyle* style = m_renderer->style(m_firstLine);
int mtx = tx + m_width - m_markupBox->x();
int mty = ty + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());
if (m_markupBox->nodeAtPoint(request, result, x, y, mtx, mty)) {
renderer()->updateHitTestResult(result, IntPoint(x - mtx, y - mty));
return true;
}
}
IntRect boundsRect = IntRect(tx, ty, m_width, m_height);
if (visibleToHitTesting() && boundsRect.intersects(result.rectFromPoint(x, y))) {
renderer()->updateHitTestResult(result, IntPoint(x - tx, y - ty));
if (!result.addNodeToRectBasedTestResult(renderer()->node(), x, y, boundsRect))
return true;
}
return false;
}
bool RootInlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty)
{
if (m_hasEllipsisBox && visibleToHitTesting()) {
if (ellipsisBox()->nodeAtPoint(request, result, x, y, tx, ty)) {
renderer()->updateHitTestResult(result, IntPoint(x - tx, y - ty));
return true;
}
}
return InlineFlowBox::nodeAtPoint(request, result, x, y, tx, ty);
}
bool RootInlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
if (hasEllipsisBox() && visibleToHitTesting()) {
if (ellipsisBox()->nodeAtPoint(request, result, locationInContainer, accumulatedOffset, lineTop, lineBottom)) {
renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
return true;
}
}
return InlineFlowBox::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, lineTop, lineBottom);
}
bool InlineTextBox::nodeAtPoint(const HitTestRequest&, HitTestResult& result, int x, int y, int tx, int ty)
{
if (isLineBreak())
return false;
IntRect rect(tx + m_x, ty + m_y, m_width, m_height);
if (m_truncation != cFullTruncation && visibleToHitTesting() && rect.contains(x, y)) {
object()->updateHitTestResult(result, IntPoint(x - tx, y - ty));
return true;
}
return false;
}
// Hit Testing
bool RenderRegion::hitTestFlowThreadContents(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
{
if (!isValid() || action != HitTestForeground)
return false;
LayoutRect boundsRect = borderBoxRectInRegion(locationInContainer.region());
boundsRect.moveBy(accumulatedOffset);
if (visibleToHitTesting() && locationInContainer.intersects(boundsRect)) {
if (m_flowThread->hitTestFlowThreadPortionInRegion(this, flowThreadPortionRect(), flowThreadPortionOverflowRect(), request, result,
locationInContainer, LayoutPoint(accumulatedOffset.x() + borderLeft() + paddingLeft(), accumulatedOffset.y() + borderTop() + paddingTop())))
return true;
}
return false;
}
bool RenderMultiColumnSet::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
{
LayoutPoint adjustedLocation = accumulatedOffset + location();
// Check our bounds next. For this purpose always assume that we can only be hit in the
// foreground phase (which is true for replaced elements like images).
// FIXME: Once we support overflow, we need to intersect with that and not with the bounds rect.
LayoutRect boundsRect = borderBoxRectInRegion(locationInContainer.region());
boundsRect.moveBy(adjustedLocation);
if (!visibleToHitTesting() || action != HitTestForeground || !locationInContainer.intersects(boundsRect))
return false;
// The point is in one specific column. Since columns can't overlap, we don't ever have to test
// multiple columns. Put the
// FIXME: It would be nice to jump right to the specific column by just doing math on the point. Since columns
// can't overlap, we shouldn't have to walk every column like this. The old column code walked all the columns, though,
// so this is no worse. We'd have to watch out for rect-based hit testing, though, which actually could overlap
// multiple columns.
LayoutUnit colGap = columnGap();
unsigned colCount = columnCount();
for (unsigned i = 0; i < colCount; i++) {
// First we get the column rect, which is in our local coordinate space, and we make it physical and apply
// the hit test offset to it. That gives us the physical location that we want to paint the column at.
LayoutRect colRect = columnRectAt(i);
flipForWritingMode(colRect);
colRect.moveBy(adjustedLocation);
// Next we get the portion of the flow thread that corresponds to this column.
LayoutRect flowThreadPortion = flowThreadPortionRectAt(i);
// Now get the overflow rect that corresponds to the column.
LayoutRect flowThreadOverflowPortion = flowThreadPortionOverflowRect(flowThreadPortion, i, colCount, colGap);
// Do the hit test with the computed rects.
if (flowThread()->hitTestFlowThreadPortionInRegion(this, flowThreadPortion, flowThreadOverflowPortion, request, result, locationInContainer, colRect.location()))
return true;
}
updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
return !result.addNodeToRectBasedTestResult(node(), request, locationInContainer, boundsRect);
}
// Hit Testing
bool RenderRegion::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
{
if (!isValid())
return false;
LayoutPoint adjustedLocation = accumulatedOffset + location();
// Check our bounds next. For this purpose always assume that we can only be hit in the
// foreground phase (which is true for replaced elements like images).
LayoutRect boundsRect(adjustedLocation, size());
if (visibleToHitTesting() && action == HitTestForeground && boundsRect.intersects(result.rectForPoint(pointInContainer))) {
// Check the contents of the RenderFlowThread.
if (m_flowThread && m_flowThread->hitTestRegion(this, request, result, pointInContainer, LayoutPoint(adjustedLocation.x() + borderLeft() + paddingLeft(), adjustedLocation.y() + borderTop() + paddingTop())))
return true;
updateHitTestResult(result, pointInContainer - toLayoutSize(adjustedLocation));
if (!result.addNodeToRectBasedTestResult(node(), pointInContainer, boundsRect))
return true;
}
return false;
}
bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty)
{
tx += m_x;
ty += m_y;
// Hit test the markup box.
if (m_markupBox) {
RenderStyle* style = m_renderer->style(m_firstLine);
int mtx = tx + m_width - m_markupBox->x();
int mty = ty + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());
if (m_markupBox->nodeAtPoint(request, result, x, y, mtx, mty)) {
renderer()->updateHitTestResult(result, IntPoint(x - mtx, y - mty));
return true;
}
}
if (visibleToHitTesting() && IntRect(tx, ty, m_width, m_height).contains(x, y)) {
renderer()->updateHitTestResult(result, IntPoint(x - tx, y - ty));
return true;
}
return false;
}
bool RenderSVGRoot::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
{
LayoutPoint pointInParent = locationInContainer.point() - toLayoutSize(accumulatedOffset);
LayoutPoint pointInBorderBox = pointInParent - toLayoutSize(location());
// Only test SVG content if the point is in our content box.
// FIXME: This should be an intersection when rect-based hit tests are supported by nodeAtFloatPoint.
if (contentBoxRect().contains(pointInBorderBox)) {
FloatPoint localPoint = localToParentTransform().inverse().mapPoint(FloatPoint(pointInParent));
for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
// FIXME: nodeAtFloatPoint() doesn't handle rect-based hit tests yet.
if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
updateHitTestResult(result, pointInBorderBox);
if (!result.addNodeToRectBasedTestResult(child->node(), request, locationInContainer))
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 && visibleToHitTesting()) {
// 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.
LayoutRect boundsRect(accumulatedOffset + location(), size());
if (locationInContainer.intersects(boundsRect)) {
updateHitTestResult(result, pointInBorderBox);
if (!result.addNodeToRectBasedTestResult(&svgSVGElement(), request, locationInContainer, boundsRect))
return true;
}
}
return false;
}
bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom, HitTestAction hitTestAction)
{
LayoutPoint adjustedLocation = accumulatedOffset + LayoutPoint(topLeft());
// Hit test the markup box.
if (InlineBox* markupBox = this->markupBox()) {
const RenderStyle& lineStyle = this->lineStyle();
LayoutUnit mtx = adjustedLocation.x() + m_logicalWidth - markupBox->x();
LayoutUnit mty = adjustedLocation.y() + lineStyle.fontMetrics().ascent() - (markupBox->y() + markupBox->lineStyle().fontMetrics().ascent());
if (markupBox->nodeAtPoint(request, result, locationInContainer, LayoutPoint(mtx, mty), lineTop, lineBottom, hitTestAction)) {
blockFlow().updateHitTestResult(result, locationInContainer.point() - LayoutSize(mtx, mty));
return true;
}
}
LayoutRect boundsRect(adjustedLocation, LayoutSize(m_logicalWidth, m_height));
if (visibleToHitTesting() && boundsRect.intersects(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0))) {
blockFlow().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
if (!result.addNodeToRectBasedTestResult(blockFlow().element(), request, locationInContainer, boundsRect))
return true;
}
return false;
}
