void RenderFieldset::paintBoxDecorations(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (!paintInfo.shouldPaintWithinRoot(*this))
return;
LayoutRect paintRect(paintOffset, size());
RenderBox* legend = findLegend();
if (!legend)
return RenderBlockFlow::paintBoxDecorations(paintInfo, paintOffset);
// FIXME: We need to work with "rl" and "bt" block flow directions. In those
// cases the legend is embedded in the right and bottom borders respectively.
// https://bugs.webkit.org/show_bug.cgi?id=47236
if (style().isHorizontalWritingMode()) {
LayoutUnit yOff = (legend->y() > 0) ? LayoutUnit() : (legend->height() - borderTop()) / 2;
paintRect.setHeight(paintRect.height() - yOff);
paintRect.setY(paintRect.y() + yOff);
} else {
LayoutUnit xOff = (legend->x() > 0) ? LayoutUnit() : (legend->width() - borderLeft()) / 2;
paintRect.setWidth(paintRect.width() - xOff);
paintRect.setX(paintRect.x() + xOff);
}
if (!boxShadowShouldBeAppliedToBackground(determineBackgroundBleedAvoidance(paintInfo.context)))
paintBoxShadow(paintInfo, paintRect, style(), Normal);
paintFillLayers(paintInfo, style().visitedDependentColor(CSSPropertyBackgroundColor), style().backgroundLayers(), paintRect);
paintBoxShadow(paintInfo, paintRect, style(), Inset);
if (!style().hasBorder())
return;
// Create a clipping region around the legend and paint the border as normal
GraphicsContext* graphicsContext = paintInfo.context;
GraphicsContextStateSaver stateSaver(*graphicsContext);
// FIXME: We need to work with "rl" and "bt" block flow directions. In those
// cases the legend is embedded in the right and bottom borders respectively.
// https://bugs.webkit.org/show_bug.cgi?id=47236
LayoutRect clipRect;
if (style().isHorizontalWritingMode()) {
clipRect.setX(paintRect.x() + legend->x());
clipRect.setY(paintRect.y());
clipRect.setWidth(legend->width());
clipRect.setHeight(std::max<LayoutUnit>(style().borderTopWidth(), legend->height() - ((legend->height() - borderTop()) / 2)));
} else {
clipRect.setX(paintRect.x());
clipRect.setY(paintRect.y() + legend->y());
clipRect.setWidth(std::max<LayoutUnit>(style().borderLeftWidth(), legend->width()));
clipRect.setHeight(legend->height());
}
graphicsContext->clipOut(snapRectToDevicePixels(clipRect, document().deviceScaleFactor()));
paintBorder(paintInfo, paintRect, style());
}
LayoutRect AccessibilitySpinButtonPart::elementRect() const
{
// FIXME: This logic should exist in the render tree or elsewhere, but there is no
// relationship that exists that can be queried.
LayoutRect parentRect = parentObject()->elementRect();
if (m_isIncrementor)
parentRect.setHeight(parentRect.height() / 2);
else {
parentRect.setY(parentRect.y() + parentRect.height() / 2);
parentRect.setHeight(parentRect.height() / 2);
}
return parentRect;
}
IntRect RenderVideo::videoBox() const
{
if (m_cachedImageSize.isEmpty() && videoElement()->shouldDisplayPosterImage())
return IntRect();
LayoutSize elementSize;
if (videoElement()->shouldDisplayPosterImage())
elementSize = m_cachedImageSize;
else
elementSize = intrinsicSize();
IntRect contentRect = pixelSnappedIntRect(contentBoxRect());
if (elementSize.isEmpty() || contentRect.isEmpty())
return IntRect();
LayoutRect renderBox = contentRect;
LayoutUnit ratio = renderBox.width() * elementSize.height() - renderBox.height() * elementSize.width();
if (ratio > 0) {
LayoutUnit newWidth = renderBox.height() * elementSize.width() / elementSize.height();
// Just fill the whole area if the difference is one pixel or less (in both sides)
if (renderBox.width() - newWidth > 2)
renderBox.setWidth(newWidth);
renderBox.move((contentRect.width() - renderBox.width()) / 2, 0);
} else if (ratio < 0) {
LayoutUnit newHeight = renderBox.width() * elementSize.height() / elementSize.width();
if (renderBox.height() - newHeight > 2)
renderBox.setHeight(newHeight);
renderBox.move(0, (contentRect.height() - renderBox.height()) / 2);
}
return pixelSnappedIntRect(renderBox);
}
LayoutRect RenderRegion::rectFlowPortionForBox(const RenderBox* box, const LayoutRect& rect) const
{
RenderRegion* startRegion = 0;
RenderRegion* endRegion = 0;
m_flowThread->getRegionRangeForBox(box, startRegion, endRegion);
LayoutRect mappedRect = m_flowThread->mapFromLocalToFlowThread(box, rect);
if (flowThread()->isHorizontalWritingMode()) {
if (this != startRegion)
mappedRect.shiftYEdgeTo(std::max<LayoutUnit>(logicalTopForFlowThreadContent(), mappedRect.y()));
if (this != endRegion)
mappedRect.setHeight(std::max<LayoutUnit>(0, std::min<LayoutUnit>(logicalBottomForFlowThreadContent() - mappedRect.y(), mappedRect.height())));
} else {
if (this != startRegion)
mappedRect.shiftXEdgeTo(std::max<LayoutUnit>(logicalTopForFlowThreadContent(), mappedRect.x()));
if (this != endRegion)
mappedRect.setWidth(std::max<LayoutUnit>(0, std::min<LayoutUnit>(logicalBottomForFlowThreadContent() - mappedRect.x(), mappedRect.width())));
}
if (shouldClipFlowThreadContent()) {
LayoutRect portionRect;
if (isRenderNamedFlowFragment())
portionRect = toRenderNamedFlowFragment(this)->flowThreadPortionRectForClipping(this == startRegion, this == endRegion);
else
portionRect = flowThreadPortionRect();
mappedRect.intersect(portionRect);
}
return mappedRect.isEmpty() ? mappedRect : m_flowThread->mapFromFlowThreadToLocal(box, mappedRect);
}
LayoutRect RenderRegion::rectFlowPortionForBox(const RenderBox* box, const LayoutRect& rect) const
{
RenderRegion* startRegion = 0;
RenderRegion* endRegion = 0;
m_flowThread->getRegionRangeForBox(box, startRegion, endRegion);
LayoutRect mappedRect = m_flowThread->mapFromLocalToFlowThread(box, rect);
if (flowThread()->isHorizontalWritingMode()) {
if (this != startRegion)
mappedRect.shiftYEdgeTo(std::max<LayoutUnit>(logicalTopForFlowThreadContent(), mappedRect.y()));
if (this != endRegion)
mappedRect.setHeight(std::max<LayoutUnit>(0, std::min<LayoutUnit>(logicalBottomForFlowThreadContent() - mappedRect.y(), mappedRect.height())));
} else {
if (this != startRegion)
mappedRect.shiftXEdgeTo(std::max<LayoutUnit>(logicalTopForFlowThreadContent(), mappedRect.x()));
if (this != endRegion)
mappedRect.setWidth(std::max<LayoutUnit>(0, std::min<LayoutUnit>(logicalBottomForFlowThreadContent() - mappedRect.x(), mappedRect.width())));
}
bool isLastRegionWithRegionFragmentBreak = (isLastRegion() && (style().regionFragment() == BreakRegionFragment));
if (hasOverflowClip() || isLastRegionWithRegionFragmentBreak)
mappedRect.intersect(flowThreadPortionRect());
return mappedRect.isEmpty() ? mappedRect : m_flowThread->mapFromFlowThreadToLocal(box, mappedRect);
}
LayoutSize RenderMultiColumnFlowThread::physicalTranslationOffsetFromFlowToRegion(const RenderRegion* renderRegion, const LayoutUnit logicalOffset) const
{
// Now that we know which multicolumn set we hit, we need to get the appropriate translation offset for the column.
const RenderMultiColumnSet* columnSet = toRenderMultiColumnSet(renderRegion);
LayoutPoint translationOffset = columnSet->columnTranslationForOffset(logicalOffset);
// Now we know how we want the rect to be translated into the region. At this point we're converting
// back to physical coordinates.
if (style().isFlippedBlocksWritingMode()) {
LayoutRect portionRect(columnSet->flowThreadPortionRect());
LayoutRect columnRect = columnSet->columnRectAt(0);
LayoutUnit physicalDeltaFromPortionBottom = logicalHeight() - columnSet->logicalBottomInFlowThread();
if (isHorizontalWritingMode())
columnRect.setHeight(portionRect.height());
else
columnRect.setWidth(portionRect.width());
columnSet->flipForWritingMode(columnRect);
if (isHorizontalWritingMode())
translationOffset.move(0, columnRect.y() - portionRect.y() - physicalDeltaFromPortionBottom);
else
translationOffset.move(columnRect.x() - portionRect.x() - physicalDeltaFromPortionBottom, 0);
}
return LayoutSize(translationOffset.x(), translationOffset.y());
}
// Checks if |node| is offscreen the visible area (viewport) of its container
// document. In case it is, one can scroll in direction or take any different
// desired action later on.
bool hasOffscreenRect(Node* node, FocusType type)
{
// Get the FrameView in which |node| is (which means the current viewport if |node|
// is not in an inner document), so we can check if its content rect is visible
// before we actually move the focus to it.
FrameView* frameView = node->document().view();
if (!frameView)
return true;
ASSERT(!frameView->needsLayout());
LayoutRect containerViewportRect = frameView->visibleContentRect();
// We want to select a node if it is currently off screen, but will be
// exposed after we scroll. Adjust the viewport to post-scrolling position.
// If the container has overflow:hidden, we cannot scroll, so we do not pass direction
// and we do not adjust for scrolling.
switch (type) {
case FocusTypeLeft:
containerViewportRect.setX(containerViewportRect.x() - ScrollableArea::pixelsPerLineStep());
containerViewportRect.setWidth(containerViewportRect.width() + ScrollableArea::pixelsPerLineStep());
break;
case FocusTypeRight:
containerViewportRect.setWidth(containerViewportRect.width() + ScrollableArea::pixelsPerLineStep());
break;
case FocusTypeUp:
containerViewportRect.setY(containerViewportRect.y() - ScrollableArea::pixelsPerLineStep());
containerViewportRect.setHeight(containerViewportRect.height() + ScrollableArea::pixelsPerLineStep());
break;
case FocusTypeDown:
containerViewportRect.setHeight(containerViewportRect.height() + ScrollableArea::pixelsPerLineStep());
break;
default:
break;
}
RenderObject* render = node->renderer();
if (!render)
return true;
LayoutRect rect(render->absoluteClippedOverflowRect());
if (rect.isEmpty())
return true;
return !containerViewportRect.intersects(rect);
}
RenderBox::LogicalExtentComputedValues RenderProgress::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop) const
{
auto computedValues = RenderBox::computeLogicalHeight(logicalHeight, logicalTop);
LayoutRect frame = frameRect();
if (isHorizontalWritingMode())
frame.setHeight(computedValues.m_extent);
else
frame.setWidth(computedValues.m_extent);
IntSize frameSize = theme().progressBarRectForBounds(*this, snappedIntRect(frame)).size();
computedValues.m_extent = isHorizontalWritingMode() ? frameSize.height() : frameSize.width();
return computedValues;
}
void RenderMeter::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
{
RenderBox::computeLogicalHeight(logicalHeight, logicalTop, computedValues);
LayoutRect frame = frameRect();
if (isHorizontalWritingMode())
frame.setHeight(computedValues.m_extent);
else
frame.setWidth(computedValues.m_extent);
IntSize frameSize = theme().meterSizeForBounds(*this, pixelSnappedIntRect(frame));
computedValues.m_extent = isHorizontalWritingMode() ? frameSize.height() : frameSize.width();
}
void ShadowData::adjustRectForShadow(LayoutRect& rect, int additionalOutlineSize) const
{
int shadowLeft = 0;
int shadowRight = 0;
int shadowTop = 0;
int shadowBottom = 0;
calculateShadowExtent(this, additionalOutlineSize, shadowLeft, shadowRight, shadowTop, shadowBottom);
rect.move(shadowLeft, shadowTop);
rect.setWidth(rect.width() - shadowLeft + shadowRight);
rect.setHeight(rect.height() - shadowTop + shadowBottom);
}
void RenderLineBreak::collectSelectionRects(Vector<SelectionRect>& rects, unsigned, unsigned)
{
ensureLineBoxes(*this);
InlineElementBox* box = m_inlineBoxWrapper;
if (!box)
return;
const RootInlineBox& rootBox = box->root();
LayoutRect rect = rootBox.computeCaretRect(box->logicalLeft(), 0, nullptr);
if (rootBox.isFirstAfterPageBreak()) {
if (box->isHorizontal())
rect.shiftYEdgeTo(rootBox.lineTopWithLeading());
else
rect.shiftXEdgeTo(rootBox.lineTopWithLeading());
}
RenderBlock* containingBlock = this->containingBlock();
// Map rect, extended left to leftOffset, and right to rightOffset, through transforms to get minX and maxX.
LogicalSelectionOffsetCaches cache(*containingBlock);
LayoutUnit leftOffset = containingBlock->logicalLeftSelectionOffset(*containingBlock, box->logicalTop(), cache);
LayoutUnit rightOffset = containingBlock->logicalRightSelectionOffset(*containingBlock, box->logicalTop(), cache);
LayoutRect extentsRect = rect;
if (box->isHorizontal()) {
extentsRect.setX(leftOffset);
extentsRect.setWidth(rightOffset - leftOffset);
} else {
extentsRect.setY(leftOffset);
extentsRect.setHeight(rightOffset - leftOffset);
}
extentsRect = localToAbsoluteQuad(FloatRect(extentsRect)).enclosingBoundingBox();
if (!box->isHorizontal())
extentsRect = extentsRect.transposedRect();
bool isFirstOnLine = !box->previousOnLineExists();
bool isLastOnLine = !box->nextOnLineExists();
if (containingBlock->isRubyBase() || containingBlock->isRubyText())
isLastOnLine = !containingBlock->containingBlock()->inlineBoxWrapper()->nextOnLineExists();
bool isFixed = false;
IntRect absRect = localToAbsoluteQuad(FloatRect(rect), UseTransforms, &isFixed).enclosingBoundingBox();
bool boxIsHorizontal = !box->isSVGInlineTextBox() ? box->isHorizontal() : !style().svgStyle().isVerticalWritingMode();
// If the containing block is an inline element, we want to check the inlineBoxWrapper orientation
// to determine the orientation of the block. In this case we also use the inlineBoxWrapper to
// determine if the element is the last on the line.
if (containingBlock->inlineBoxWrapper()) {
if (containingBlock->inlineBoxWrapper()->isHorizontal() != boxIsHorizontal) {
boxIsHorizontal = containingBlock->inlineBoxWrapper()->isHorizontal();
isLastOnLine = !containingBlock->inlineBoxWrapper()->nextOnLineExists();
}
}
rects.append(SelectionRect(absRect, box->direction(), extentsRect.x(), extentsRect.maxX(), extentsRect.maxY(), 0, box->isLineBreak(), isFirstOnLine, isLastOnLine, false, false, boxIsHorizontal, isFixed, containingBlock->isRubyText(), view().pageNumberForBlockProgressionOffset(absRect.x())));
}
void IntersectionObserver::applyRootMargin(LayoutRect& rect) const
{
// TODO(szager): Make sure the spec is clear that left/right margins are resolved against
// width and not height.
LayoutUnit topMargin = computeMargin(m_topMargin, rect.height());
LayoutUnit rightMargin = computeMargin(m_rightMargin, rect.width());
LayoutUnit bottomMargin = computeMargin(m_bottomMargin, rect.height());
LayoutUnit leftMargin = computeMargin(m_leftMargin, rect.width());
rect.setX(rect.x() - leftMargin);
rect.setWidth(rect.width() + leftMargin + rightMargin);
rect.setY(rect.y() - topMargin);
rect.setHeight(rect.height() + topMargin + bottomMargin);
}
// The starting rect is the rect of the focused node, in document coordinates.
// Compose a virtual starting rect if there is no focused node or if it is off screen.
// The virtual rect is the edge of the container or frame. We select which
// edge depending on the direction of the navigation.
LayoutRect virtualRectForDirection(FocusType type, const LayoutRect& startingRect, LayoutUnit width)
{
LayoutRect virtualStartingRect = startingRect;
switch (type) {
case FocusTypeLeft:
virtualStartingRect.setX(virtualStartingRect.maxX() - width);
virtualStartingRect.setWidth(width);
break;
case FocusTypeUp:
virtualStartingRect.setY(virtualStartingRect.maxY() - width);
virtualStartingRect.setHeight(width);
break;
case FocusTypeRight:
virtualStartingRect.setWidth(width);
break;
case FocusTypeDown:
virtualStartingRect.setHeight(width);
break;
default:
ASSERT_NOT_REACHED();
}
return virtualStartingRect;
}
bool RenderFlowThread::objectInFlowRegion(const RenderObject* object, const RenderRegion* region) const
{
ASSERT(object);
ASSERT(region);
if (!object->inRenderFlowThread())
return false;
if (object->enclosingRenderFlowThread() != this)
return false;
if (!m_regionList.contains(const_cast<RenderRegion*>(region)))
return false;
RenderBox* enclosingBox = object->enclosingBox();
RenderRegion* enclosingBoxStartRegion = 0;
RenderRegion* enclosingBoxEndRegion = 0;
getRegionRangeForBox(enclosingBox, enclosingBoxStartRegion, enclosingBoxEndRegion);
if (!regionInRange(region, enclosingBoxStartRegion, enclosingBoxEndRegion))
return false;
if (object->isBox())
return true;
LayoutRect objectABBRect = object->absoluteBoundingBoxRect(true);
if (!objectABBRect.width())
objectABBRect.setWidth(1);
if (!objectABBRect.height())
objectABBRect.setHeight(1);
if (objectABBRect.intersects(region->absoluteBoundingBoxRect(true)))
return true;
if (region == lastRegion()) {
// If the object does not intersect any of the enclosing box regions
// then the object is in last region.
for (RenderRegionList::const_iterator it = m_regionList.find(enclosingBoxStartRegion); it != m_regionList.end(); ++it) {
const RenderRegion* currRegion = *it;
if (!region->isValid())
continue;
if (currRegion == region)
break;
if (objectABBRect.intersects(currRegion->absoluteBoundingBoxRect(true)))
return false;
}
return true;
}
return false;
}
LayoutRect nodeRectInAbsoluteCoordinates(Node* node, bool ignoreBorder)
{
ASSERT(node && node->renderer() && !node->document().view()->needsLayout());
if (node->isDocumentNode())
return frameRectInAbsoluteCoordinates(toDocument(node)->frame());
LayoutRect rect = rectToAbsoluteCoordinates(node->document().frame(), node->boundingBox());
// For authors that use border instead of outline in their CSS, we compensate by ignoring the border when calculating
// the rect of the focused element.
if (ignoreBorder) {
rect.move(node->renderer()->style()->borderLeftWidth(), node->renderer()->style()->borderTopWidth());
rect.setWidth(rect.width() - node->renderer()->style()->borderLeftWidth() - node->renderer()->style()->borderRightWidth());
rect.setHeight(rect.height() - node->renderer()->style()->borderTopWidth() - node->renderer()->style()->borderBottomWidth());
}
return rect;
}
static FloatRect localQuadForTextBox(const InlineTextBox& box, unsigned start, unsigned end, bool useSelectionHeight)
{
unsigned realEnd = std::min(box.end() + 1, end);
LayoutRect boxSelectionRect = box.localSelectionRect(start, realEnd);
if (!boxSelectionRect.height())
return FloatRect();
if (useSelectionHeight)
return boxSelectionRect;
// Change the height and y position (or width and x for vertical text)
// because selectionRect uses selection-specific values.
if (box.isHorizontal()) {
boxSelectionRect.setHeight(box.height());
boxSelectionRect.setY(box.y());
} else {
boxSelectionRect.setWidth(box.width());
boxSelectionRect.setX(box.x());
}
return boxSelectionRect;
}
static PassRefPtr<InspectorObject> buildObjectForRegionHighlight(FrameView* mainView, RenderRegion* region)
{
FrameView* containingView = region->frame().view();
if (!containingView)
return nullptr;
RenderBlockFlow* regionContainer = toRenderBlockFlow(region->parent());
LayoutRect borderBox = regionContainer->borderBoxRect();
borderBox.setWidth(borderBox.width() + regionContainer->verticalScrollbarWidth());
borderBox.setHeight(borderBox.height() + regionContainer->horizontalScrollbarHeight());
// Create incoming and outgoing boxes that we use to chain the regions toghether.
const LayoutSize linkBoxSize(10, 10);
const LayoutSize linkBoxMidpoint(linkBoxSize.width() / 2, linkBoxSize.height() / 2);
LayoutRect incomingRectBox = LayoutRect(borderBox.location() - linkBoxMidpoint, linkBoxSize);
LayoutRect outgoingRectBox = LayoutRect(borderBox.location() - linkBoxMidpoint + borderBox.size(), linkBoxSize);
// Move the link boxes slightly inside the region border box.
LayoutUnit maxUsableHeight = std::max(LayoutUnit(), borderBox.height() - linkBoxMidpoint.height());
LayoutUnit linkBoxVerticalOffset = std::min(LayoutUnit::fromPixel(15), maxUsableHeight);
incomingRectBox.move(0, linkBoxVerticalOffset);
outgoingRectBox.move(0, -linkBoxVerticalOffset);
FloatQuad borderRectQuad = regionContainer->localToAbsoluteQuad(FloatRect(borderBox));
FloatQuad incomingRectQuad = regionContainer->localToAbsoluteQuad(FloatRect(incomingRectBox));
FloatQuad outgoingRectQuad = regionContainer->localToAbsoluteQuad(FloatRect(outgoingRectBox));
contentsQuadToPage(mainView, containingView, borderRectQuad);
contentsQuadToPage(mainView, containingView, incomingRectQuad);
contentsQuadToPage(mainView, containingView, outgoingRectQuad);
RefPtr<InspectorObject> regionObject = InspectorObject::create();
regionObject->setArray("borderQuad", buildArrayForQuad(borderRectQuad));
regionObject->setArray("incomingQuad", buildArrayForQuad(incomingRectQuad));
regionObject->setArray("outgoingQuad", buildArrayForQuad(outgoingRectQuad));
return regionObject.release();
}
// Bounds of the LayoutObject relative to the scroller's visible content rect.
static LayoutRect relativeBounds(const LayoutObject* layoutObject,
const ScrollableArea* scroller) {
LayoutRect localBounds;
if (layoutObject->isBox()) {
localBounds = toLayoutBox(layoutObject)->borderBoxRect();
if (!layoutObject->hasOverflowClip()) {
// borderBoxRect doesn't include overflow content and floats.
LayoutUnit maxHeight =
std::max(localBounds.height(),
toLayoutBox(layoutObject)->layoutOverflowRect().height());
if (layoutObject->isLayoutBlockFlow() &&
toLayoutBlockFlow(layoutObject)->containsFloats()) {
// Note that lowestFloatLogicalBottom doesn't include floating
// grandchildren.
maxHeight = std::max(
maxHeight,
toLayoutBlockFlow(layoutObject)->lowestFloatLogicalBottom());
}
localBounds.setHeight(maxHeight);
}
} else if (layoutObject->isText()) {
// TODO(skobes): Use first and last InlineTextBox only?
for (InlineTextBox* box = toLayoutText(layoutObject)->firstTextBox(); box;
box = box->nextTextBox())
localBounds.unite(box->frameRect());
} else {
// Only LayoutBox and LayoutText are supported.
ASSERT_NOT_REACHED();
}
LayoutRect relativeBounds = LayoutRect(
scroller->localToVisibleContentQuad(FloatRect(localBounds), layoutObject)
.boundingBox());
return relativeBounds;
}
LayoutRect RenderNamedFlowThread::decorationsClipRectForBoxInNamedFlowFragment(const RenderBox& box, RenderNamedFlowFragment& fragment) const
{
LayoutRect visualOverflowRect = fragment.visualOverflowRectForBox(&box);
LayoutUnit initialLogicalX = style().isHorizontalWritingMode() ? visualOverflowRect.x() : visualOverflowRect.y();
// The visual overflow rect returned by visualOverflowRectForBox is already flipped but the
// RenderRegion::rectFlowPortionForBox method expects it unflipped.
flipForWritingModeLocalCoordinates(visualOverflowRect);
visualOverflowRect = fragment.rectFlowPortionForBox(&box, visualOverflowRect);
// Now flip it again.
flipForWritingModeLocalCoordinates(visualOverflowRect);
// Take the scrolled offset of this object's parents into consideration.
IntSize scrolledContentOffset;
RenderBlock* containingBlock = box.containingBlock();
while (containingBlock) {
if (containingBlock->isRenderNamedFlowThread()) {
// We've reached the flow thread, take the scrolled offset of the region into consideration.
ASSERT(containingBlock == this);
scrolledContentOffset += fragment.fragmentContainer().scrolledContentOffset();
break;
}
scrolledContentOffset += containingBlock->scrolledContentOffset();
containingBlock = containingBlock->containingBlock();
}
if (!scrolledContentOffset.isZero()) {
if (style().isFlippedBlocksWritingMode())
scrolledContentOffset = -scrolledContentOffset;
visualOverflowRect.inflateX(scrolledContentOffset.width());
visualOverflowRect.inflateY(scrolledContentOffset.height());
}
// Layers are in physical coordinates so the origin must be moved to the physical top-left of the flowthread.
if (style().isFlippedBlocksWritingMode()) {
if (style().isHorizontalWritingMode())
visualOverflowRect.moveBy(LayoutPoint(0, height()));
else
visualOverflowRect.moveBy(LayoutPoint(width(), 0));
}
const RenderBox* iterBox = &box;
while (iterBox && iterBox != this) {
RenderBlock* containerBlock = iterBox->containingBlock();
// FIXME: This doesn't work properly with flipped writing modes.
// https://bugs.webkit.org/show_bug.cgi?id=125149
if (iterBox->isPositioned()) {
// For positioned elements, just use the layer's absolute bounding box.
visualOverflowRect.moveBy(iterBox->layer()->absoluteBoundingBox().location());
break;
}
LayoutRect currentBoxRect = iterBox->frameRect();
if (iterBox->style().isFlippedBlocksWritingMode()) {
if (iterBox->style().isHorizontalWritingMode())
currentBoxRect.setY(currentBoxRect.height() - currentBoxRect.maxY());
else
currentBoxRect.setX(currentBoxRect.width() - currentBoxRect.maxX());
}
if (containerBlock->style().writingMode() != iterBox->style().writingMode())
iterBox->flipForWritingMode(currentBoxRect);
visualOverflowRect.moveBy(currentBoxRect.location());
iterBox = containerBlock;
}
// Since the purpose of this method is to make sure the borders of a fragmented
// element don't overflow the region in the fragmentation direction, there's no
// point in restricting the clipping rect on the logical X axis.
// This also saves us the trouble of handling percent-based widths and margins
// since the absolute bounding box of a positioned element would not contain
// the correct coordinates relative to the region we're interested in, but rather
// relative to the actual flow thread.
if (style().isHorizontalWritingMode()) {
if (initialLogicalX < visualOverflowRect.x())
visualOverflowRect.shiftXEdgeTo(initialLogicalX);
if (visualOverflowRect.width() < frameRect().width())
visualOverflowRect.setWidth(frameRect().width());
} else {
if (initialLogicalX < visualOverflowRect.y())
visualOverflowRect.shiftYEdgeTo(initialLogicalX);
if (visualOverflowRect.height() < frameRect().height())
visualOverflowRect.setHeight(frameRect().height());
}
return visualOverflowRect;
}
void RenderMathMLMenclose::paint(PaintInfo& info, const LayoutPoint& paintOffset)
{
RenderMathMLRow::paint(info, paintOffset);
if (info.context().paintingDisabled() || info.phase != PaintPhaseForeground || style().visibility() != VISIBLE)
return;
LayoutUnit thickness = ruleThickness();
// Make a copy of the PaintInfo because applyTransform will modify its rect.
PaintInfo paintInfo(info);
GraphicsContextStateSaver stateSaver(paintInfo.context());
paintInfo.context().setStrokeThickness(thickness);
paintInfo.context().setStrokeStyle(SolidStroke);
paintInfo.context().setStrokeColor(style().visitedDependentColor(CSSPropertyColor));
paintInfo.context().setFillColor(Color::transparent);
paintInfo.applyTransform(AffineTransform().translate(paintOffset + location()));
// In the MathML in HTML5 implementation note, the "left" notation is described as follows:
// - center of the left vertical bar is at 3\xi_8 padding + \xi_8 border/2 = 7\xi_8/2
// - top space is Overbar Vertical Gap + Overbar Rule Thickness = 3\xi_8 + \xi_8 = 4\xi_8
// - bottom space is Underbar Vertical Gap + Underbar Rule Thickness = 3\xi_8 + \xi_8 = 4\xi_8
if (hasNotation(MathMLMencloseElement::Left)) {
LayoutUnit x = m_contentRect.x() - 7 * thickness / 2;
LayoutUnit yStart = m_contentRect.y() - 4 * thickness;
LayoutUnit yEnd = m_contentRect.maxY() + 4 * thickness;
drawLine(info, x, yStart, x, yEnd);
}
// In the MathML in HTML5 implementation note, the "right" notation is described as follows:
// - center of the right vertical bar is at 3\xi_8 padding + \xi_8 border/2 = 7\xi_8/2
// - top space is Overbar Vertical Gap + Overbar Rule Thickness = 3\xi_8 + \xi_8 = 4\xi_8
// - bottom space is Underbar Vertical Gap + Underbar Rule Thickness = 3\xi_8 + \xi_8 = 4\xi_8
if (hasNotation(MathMLMencloseElement::Right)) {
LayoutUnit x = m_contentRect.maxX() + 7 * thickness / 2;
LayoutUnit yStart = m_contentRect.y() - 4 * thickness;
LayoutUnit yEnd = m_contentRect.maxY() + 4 * thickness;
drawLine(info, x, yStart, x, yEnd);
}
// In the MathML in HTML5 implementation note, the "vertical" notation is horizontally centered.
if (hasNotation(MathMLMencloseElement::VerticalStrike)) {
LayoutUnit x = m_contentRect.x() + (m_contentRect.width() - thickness) / 2;
LayoutUnit yStart = m_contentRect.y();
LayoutUnit yEnd = m_contentRect.maxY();
drawLine(info, x, yStart, x, yEnd);
}
// In the MathML in HTML5 implementation note, the "top" notation is described as follows:
// - middle of the top horizontal bar is at Vertical Gap + Rule Thickness / 2 = 7\xi_8/2
// - left and right spaces have size 4\xi_8
if (hasNotation(MathMLMencloseElement::Top)) {
LayoutUnit y = m_contentRect.y() - 7 * thickness / 2;
LayoutUnit xStart = m_contentRect.x() - 4 * thickness;
LayoutUnit xEnd = m_contentRect.maxX() + 4 * thickness;
drawLine(info, xStart, y, xEnd, y);
}
// In the MathML in HTML5 implementation note, the "bottom" notation is described as follows:
// - middle of the bottom horizontal bar is at Vertical Gap + Rule Thickness / 2 = 7\xi_8/2
// - left and right spaces have size 4\xi_8
if (hasNotation(MathMLMencloseElement::Bottom)) {
LayoutUnit y = m_contentRect.maxY() + 7 * thickness / 2;
LayoutUnit xStart = m_contentRect.x() - 4 * thickness;
LayoutUnit xEnd = m_contentRect.maxX() + 4 * thickness;
drawLine(info, xStart, y, xEnd, y);
}
// In the MathML in HTML5 implementation note, the "vertical" notation is vertically centered.
if (hasNotation(MathMLMencloseElement::HorizontalStrike)) {
LayoutUnit y = m_contentRect.y() + (m_contentRect.height() - thickness) / 2;
LayoutUnit xStart = m_contentRect.x();
LayoutUnit xEnd = m_contentRect.maxX();
drawLine(info, xStart, y, xEnd, y);
}
// In the MathML in HTML5 implementation note, the "updiagonalstrike" goes from the bottom left corner
// to the top right corner.
if (hasNotation(MathMLMencloseElement::UpDiagonalStrike))
drawLine(info, m_contentRect.x(), m_contentRect.maxY(), m_contentRect.maxX(), m_contentRect.y());
// In the MathML in HTML5 implementation note, the "downdiagonalstrike" goes from the top left corner
// to the bottom right corner.
if (hasNotation(MathMLMencloseElement::DownDiagonalStrike))
drawLine(info, m_contentRect.x(), m_contentRect.y(), m_contentRect.maxX(), m_contentRect.maxY());
// In the MathML in HTML5 implementation note, the "roundedbox" has radii size 3\xi_8 and is obtained
// by inflating the content box by 3\xi_8 + \xi_8/2 = 7\xi_8/2
if (hasNotation(MathMLMencloseElement::RoundedBox)) {
LayoutSize radiiSize(3 * thickness, 3 * thickness);
RoundedRect::Radii radii(radiiSize, radiiSize, radiiSize, radiiSize);
RoundedRect roundedRect(m_contentRect, radii);
roundedRect.inflate(7 * thickness / 2);
Path path;
path.addRoundedRect(roundedRect);
paintInfo.context().strokePath(path);
}
// For longdiv, we use our own rules for now:
// - top space is like "top" notation
// - bottom space is like "bottom" notation
// - right space is like "right" notation
// - left space is longDivLeftSpace * \xi_8
// - We subtract half of the thickness from these spaces to obtain "top", "bottom", "left"
// and "right" coordinates.
// - The top bar is drawn from "right" to "left" and positioned at vertical offset "top".
// - The left part is draw as a quadratic Bezier curve with end points going from "top" to
// "bottom" and positioned at horizontal offset "left".
// - In order to force the curvature of the left part, we use a middle point that is vertically
// centered and shifted towards the right by longDivLeftSpace * \xi_8
if (hasNotation(MathMLMencloseElement::LongDiv)) {
LayoutUnit top = m_contentRect.y() - 7 * thickness / 2;
LayoutUnit bottom = m_contentRect.maxY() + 7 * thickness / 2;
LayoutUnit left = m_contentRect.x() - longDivLeftSpace * thickness + thickness / 2;
LayoutUnit right = m_contentRect.maxX() + 4 * thickness;
LayoutUnit midX = left + longDivLeftSpace * thickness;
LayoutUnit midY = (top + bottom) / 2;
Path path;
path.moveTo(LayoutPoint(right, top));
path.addLineTo(LayoutPoint(left, top));
path.addQuadCurveTo(LayoutPoint(midX, midY), FloatPoint(left, bottom));
paintInfo.context().strokePath(path);
}
// In the MathML in HTML5 implementation note, the "circle" notation is described as follows:
// - The center and axes are the same as the content bounding box.
// - The width of the bounding box is \xi_8/2 + contentWidth * \sqrt{2} + \xi_8/2
// - The height is \xi_8/2 + contentHeight * \sqrt{2} + \xi_8/2
if (hasNotation(MathMLMencloseElement::Circle)) {
LayoutRect ellipseRect;
ellipseRect.setWidth(m_contentRect.width() * sqrtOfTwoFloat + thickness);
ellipseRect.setHeight(m_contentRect.height() * sqrtOfTwoFloat + thickness);
ellipseRect.setX(m_contentRect.x() - (ellipseRect.width() - m_contentRect.width()) / 2);
ellipseRect.setY(m_contentRect.y() - (ellipseRect.height() - m_contentRect.height()) / 2);
Path path;
path.addEllipse(ellipseRect);
paintInfo.context().strokePath(path);
}
}
bool InspectorHighlight::buildNodeQuads(Node* node, FloatQuad* content, FloatQuad* padding, FloatQuad* border, FloatQuad* margin)
{
LayoutObject* layoutObject = node->layoutObject();
if (!layoutObject)
return false;
FrameView* containingView = layoutObject->frameView();
if (!containingView)
return false;
if (!layoutObject->isBox() && !layoutObject->isLayoutInline())
return false;
LayoutRect contentBox;
LayoutRect paddingBox;
LayoutRect borderBox;
LayoutRect marginBox;
if (layoutObject->isBox()) {
LayoutBox* layoutBox = toLayoutBox(layoutObject);
// LayoutBox returns the "pure" content area box, exclusive of the scrollbars (if present), which also count towards the content area in CSS.
const int verticalScrollbarWidth = layoutBox->verticalScrollbarWidth();
const int horizontalScrollbarHeight = layoutBox->horizontalScrollbarHeight();
contentBox = layoutBox->contentBoxRect();
contentBox.setWidth(contentBox.width() + verticalScrollbarWidth);
contentBox.setHeight(contentBox.height() + horizontalScrollbarHeight);
paddingBox = layoutBox->paddingBoxRect();
paddingBox.setWidth(paddingBox.width() + verticalScrollbarWidth);
paddingBox.setHeight(paddingBox.height() + horizontalScrollbarHeight);
borderBox = layoutBox->borderBoxRect();
marginBox = LayoutRect(borderBox.x() - layoutBox->marginLeft(), borderBox.y() - layoutBox->marginTop(),
borderBox.width() + layoutBox->marginWidth(), borderBox.height() + layoutBox->marginHeight());
} else {
LayoutInline* layoutInline = toLayoutInline(layoutObject);
// LayoutInline's bounding box includes paddings and borders, excludes margins.
borderBox = LayoutRect(layoutInline->linesBoundingBox());
paddingBox = LayoutRect(borderBox.x() + layoutInline->borderLeft(), borderBox.y() + layoutInline->borderTop(),
borderBox.width() - layoutInline->borderLeft() - layoutInline->borderRight(), borderBox.height() - layoutInline->borderTop() - layoutInline->borderBottom());
contentBox = LayoutRect(paddingBox.x() + layoutInline->paddingLeft(), paddingBox.y() + layoutInline->paddingTop(),
paddingBox.width() - layoutInline->paddingLeft() - layoutInline->paddingRight(), paddingBox.height() - layoutInline->paddingTop() - layoutInline->paddingBottom());
// Ignore marginTop and marginBottom for inlines.
marginBox = LayoutRect(borderBox.x() - layoutInline->marginLeft(), borderBox.y(),
borderBox.width() + layoutInline->marginWidth(), borderBox.height());
}
*content = layoutObject->localToAbsoluteQuad(FloatRect(contentBox));
*padding = layoutObject->localToAbsoluteQuad(FloatRect(paddingBox));
*border = layoutObject->localToAbsoluteQuad(FloatRect(borderBox));
*margin = layoutObject->localToAbsoluteQuad(FloatRect(marginBox));
contentsQuadToViewport(containingView, *content);
contentsQuadToViewport(containingView, *padding);
contentsQuadToViewport(containingView, *border);
contentsQuadToViewport(containingView, *margin);
return true;
}