RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect,
int topWidth, int bottomWidth, int leftWidth, int rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
{
LayoutRect innerRect(borderRect.x() + leftWidth,
borderRect.y() + topWidth,
borderRect.width() - leftWidth - rightWidth,
borderRect.height() - topWidth - bottomWidth);
RoundedRect roundedRect(pixelSnappedIntRect(innerRect));
if (hasBorderRadius()) {
RoundedRect::Radii radii = getRoundedBorderFor(borderRect).radii();
radii.shrink(topWidth, bottomWidth, leftWidth, rightWidth);
roundedRect.includeLogicalEdges(radii, includeLogicalLeftEdge, includeLogicalRightEdge);
}
return roundedRect;
}
void showLineLayoutForFlow(const RenderBlockFlow& flow, const Layout& layout, int depth)
{
int printedCharacters = 0;
printPrefix(printedCharacters, depth);
fprintf(stderr, "SimpleLineLayout (%u lines, %u runs) (%p)\n", layout.lineCount(), layout.runCount(), &layout);
++depth;
auto resolver = runResolver(flow, layout);
for (auto it = resolver.begin(), end = resolver.end(); it != end; ++it) {
const auto& run = *it;
LayoutRect r = run.rect();
printPrefix(printedCharacters, depth);
fprintf(stderr, "line %u run(%u, %u) (%.2f, %.2f) (%.2f, %.2f) \"%s\"\n", run.lineIndex(), run.start(), run.end(),
r.x().toFloat(), r.y().toFloat(), r.width().toFloat(), r.height().toFloat(), run.text().toStringWithoutCopying().utf8().data());
}
}
// 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);
}
void RenderMultiColumnSet::adjustRegionBoundsFromFlowThreadPortionRect(const LayoutPoint& layerOffset, LayoutRect& regionBounds)
{
LayoutUnit layerLogicalTop = isHorizontalWritingMode() ? layerOffset.y() : layerOffset.x();
unsigned startColumn = columnIndexAtOffset(layerLogicalTop);
LayoutUnit colGap = columnGap();
LayoutUnit colLogicalWidth = computedColumnWidth();
LayoutRect flowThreadPortion = flowThreadPortionRectAt(startColumn);
LayoutPoint translationOffset;
RenderBlockFlow* parentFlow = toRenderBlockFlow(parent());
bool progressionReversed = parentFlow->multiColumnFlowThread()->progressionIsReversed();
bool progressionIsInline = parentFlow->multiColumnFlowThread()->progressionIsInline();
LayoutUnit initialBlockOffset = initialBlockOffsetForPainting();
LayoutUnit inlineOffset = progressionIsInline ? startColumn * (colLogicalWidth + colGap) : LayoutUnit();
bool leftToRight = style().isLeftToRightDirection() ^ progressionReversed;
if (!leftToRight) {
inlineOffset = -inlineOffset;
if (progressionReversed)
inlineOffset += contentLogicalWidth() - colLogicalWidth;
}
translationOffset.setX(inlineOffset);
LayoutUnit blockOffset = initialBlockOffset + (isHorizontalWritingMode() ? -flowThreadPortion.y() : -flowThreadPortion.x());
if (!progressionIsInline) {
if (!progressionReversed)
blockOffset = startColumn * colGap;
else
blockOffset -= startColumn * (computedColumnHeight() + colGap);
}
if (isFlippedBlocksWritingMode(style().writingMode()))
blockOffset = -blockOffset;
translationOffset.setY(blockOffset);
if (!isHorizontalWritingMode())
translationOffset = translationOffset.transposedPoint();
// FIXME: The translation needs to include the multicolumn set's content offset within the
// multicolumn block as well. This won't be an issue until we start creating multiple multicolumn sets.
regionBounds.moveBy(roundedIntPoint(-translationOffset));
}
bool RenderInputSpeech::paintInputFieldSpeechButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
{
Element* element = object->node()->isElementNode() ? toElement(object->node()) : 0;
if (!element || !element->isInputFieldSpeechButtonElement())
return false;
// Get the renderer of <input> element.
Node* input = object->node()->shadowHost();
if (!input->renderer()->isBox())
return false;
RenderBox* inputRenderBox = toRenderBox(input->renderer());
LayoutRect inputContentBox = inputRenderBox->contentBoxRect();
// Make sure the scaled button stays square and will fit in its parent's box.
LayoutUnit buttonSize = std::min(inputContentBox.width(), std::min<LayoutUnit>(inputContentBox.height(), rect.height()));
// Calculate button's coordinates relative to the input element.
// Center the button vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
LayoutRect buttonRect(object->offsetFromAncestorContainer(inputRenderBox).width(),
inputContentBox.y() + (inputContentBox.height() - buttonSize + 1) / 2,
buttonSize, buttonSize);
// Compute an offset between the part renderer and the input renderer.
LayoutSize offsetFromInputRenderer = -(object->offsetFromAncestorContainer(inputRenderBox));
// Move the rect into partRenderer's coords.
buttonRect.move(offsetFromInputRenderer);
// Account for the local drawing offset.
buttonRect.moveBy(rect.location());
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateNormal, (Image::loadPlatformResource("inputSpeech")));
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateRecording, (Image::loadPlatformResource("inputSpeechRecording")));
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateWaiting, (Image::loadPlatformResource("inputSpeechWaiting")));
InputFieldSpeechButtonElement* speechButton = toInputFieldSpeechButtonElement(element);
Image* image = imageStateNormal.get();
if (speechButton->state() == InputFieldSpeechButtonElement::Recording)
image = imageStateRecording.get();
else if (speechButton->state() == InputFieldSpeechButtonElement::Recognizing)
image = imageStateWaiting.get();
paintInfo.context->drawImage(image, object->style()->colorSpace(), pixelSnappedIntRect(buttonRect));
return false;
}
LayoutRect RootFrameViewport::scrollIntoView(const LayoutRect& rectInContent, const ScrollAlignment& alignX, const ScrollAlignment& alignY)
{
// We want to move the rect into the viewport that excludes the scrollbars so we intersect
// the visual viewport with the scrollbar-excluded frameView content rect. However, we don't
// use visibleContentRect directly since it floors the scroll position. Instead, we use
// FrameView::scrollPositionDouble and construct a LayoutRect from that (the FrameView size
// is always integer sized.
LayoutRect frameRectInContent = LayoutRect(
layoutViewport().scrollPositionDouble(),
layoutViewport().visibleContentRect().size());
LayoutRect visualRectInContent = LayoutRect(
layoutViewport().scrollPositionDouble() + toDoubleSize(visualViewport().scrollPositionDouble()),
visualViewport().visibleContentRect().size());
LayoutRect viewRectInContent = intersection(visualRectInContent, frameRectInContent);
LayoutRect targetViewport =
ScrollAlignment::getRectToExpose(viewRectInContent, rectInContent, alignX, alignY);
// visualViewport.scrollIntoView will attempt to center the given rect within the viewport
// so to prevent it from adjusting r's coordinates the rect must match the viewport's size
// i.e. add the subtracted scrollbars from above back in.
// FIXME: This is hacky and required because getRectToExpose doesn't naturally account
// for the two viewports. crbug.com/449340.
targetViewport.setSize(LayoutSize(visualViewport().visibleContentRect().size()));
// Snap the visible rect to layout units to match the calculated target viewport rect.
FloatRect visible =
LayoutRect(visualViewport().scrollPositionDouble(), visualViewport().visibleContentRect().size());
float centeringOffsetX = (visible.width() - targetViewport.width()) / 2;
float centeringOffsetY = (visible.height() - targetViewport.height()) / 2;
DoublePoint targetOffset(
targetViewport.x() - centeringOffsetX,
targetViewport.y() - centeringOffsetY);
setScrollPosition(targetOffset, ProgrammaticScroll);
// RootFrameViewport only changes the viewport relative to the document so we can't change the input
// rect's location relative to the document origin.
return rectInContent;
}
static void adjustBubblePosition(const LayoutRect& hostRect, HTMLElement* bubble)
{
ASSERT(bubble);
if (hostRect.isEmpty())
return;
double hostX = hostRect.x();
double hostY = hostRect.y();
if (RenderBox* container = bubble->renderer()->containingBlock()) {
FloatPoint containerLocation = container->localToAbsolute();
hostX -= containerLocation.x() + container->borderLeft();
hostY -= containerLocation.y() + container->borderTop();
}
bubble->getInlineStyleDecl()->setProperty(CSSPropertyTop, hostY + hostRect.height(), CSSPrimitiveValue::CSS_PX);
// The 'left' value of ::-webkit-validation-bubble-arrow.
const int bubbleArrowTopOffset = 32;
double bubbleX = hostX;
if (hostRect.width() / 2 < bubbleArrowTopOffset)
bubbleX = max(hostX + hostRect.width() / 2 - bubbleArrowTopOffset, 0.0);
bubble->getInlineStyleDecl()->setProperty(CSSPropertyLeft, bubbleX, CSSPrimitiveValue::CSS_PX);
}
bool RenderReplaced::shouldPaint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseOutline && paintInfo.phase != PaintPhaseSelfOutline
&& paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseMask)
return false;
if (!paintInfo.shouldPaintWithinRoot(*this))
return false;
// if we're invisible or haven't received a layout yet, then just bail.
if (style().visibility() != VISIBLE)
return false;
RenderNamedFlowFragment* namedFlowFragment = currentRenderNamedFlowFragment();
// Check our region range to make sure we need to be painting in this region.
if (namedFlowFragment && !namedFlowFragment->flowThread()->objectShouldFragmentInFlowRegion(this, namedFlowFragment))
return false;
LayoutPoint adjustedPaintOffset = paintOffset + location();
// Early exit if the element touches the edges.
LayoutUnit top = adjustedPaintOffset.y() + visualOverflowRect().y();
LayoutUnit bottom = adjustedPaintOffset.y() + visualOverflowRect().maxY();
if (isSelected() && m_inlineBoxWrapper) {
const RootInlineBox& rootBox = m_inlineBoxWrapper->root();
LayoutUnit selTop = paintOffset.y() + rootBox.selectionTop();
LayoutUnit selBottom = paintOffset.y() + selTop + rootBox.selectionHeight();
top = std::min(selTop, top);
bottom = std::max(selBottom, bottom);
}
LayoutRect localRepaintRect = paintInfo.rect;
adjustRectWithMaximumOutline(paintInfo.phase, localRepaintRect);
if (adjustedPaintOffset.x() + visualOverflowRect().x() >= localRepaintRect.maxX() || adjustedPaintOffset.x() + visualOverflowRect().maxX() <= localRepaintRect.x())
return false;
if (top >= localRepaintRect.maxY() || bottom <= localRepaintRect.y())
return false;
return true;
}
bool ThemePainterDefault::paintSearchFieldCancelButton(
const LayoutObject& cancelButtonObject,
const PaintInfo& paintInfo,
const IntRect& r) {
// Get the layoutObject of <input> element.
if (!cancelButtonObject.node())
return false;
Node* input = cancelButtonObject.node()->ownerShadowHost();
const LayoutObject& baseLayoutObject =
input ? *input->layoutObject() : cancelButtonObject;
if (!baseLayoutObject.isBox())
return false;
const LayoutBox& inputLayoutBox = toLayoutBox(baseLayoutObject);
LayoutRect inputContentBox = inputLayoutBox.contentBoxRect();
// Make sure the scaled button stays square and will fit in its parent's box.
LayoutUnit cancelButtonSize =
std::min(inputContentBox.width(),
std::min(inputContentBox.height(), LayoutUnit(r.height())));
// Calculate cancel button's coordinates relative to the input element.
// Center the button vertically. Round up though, so if it has to be one
// pixel off-center, it will be one pixel closer to the bottom of the field.
// This tends to look better with the text.
LayoutRect cancelButtonRect(
cancelButtonObject.offsetFromAncestorContainer(&inputLayoutBox).width(),
inputContentBox.y() +
(inputContentBox.height() - cancelButtonSize + 1) / 2,
cancelButtonSize, cancelButtonSize);
IntRect paintingRect = convertToPaintingRect(
inputLayoutBox, cancelButtonObject, cancelButtonRect, r);
DEFINE_STATIC_REF(Image, cancelImage,
(Image::loadPlatformResource("searchCancel")));
DEFINE_STATIC_REF(Image, cancelPressedImage,
(Image::loadPlatformResource("searchCancelPressed")));
paintInfo.context.drawImage(LayoutTheme::isPressed(cancelButtonObject)
? cancelPressedImage
: cancelImage,
paintingRect);
return false;
}
bool FilterEffectRendererHelper::prepareFilterEffect(RenderLayer* renderLayer, const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect)
{
ASSERT(m_haveFilterEffect && renderLayer->filterRenderer());
m_renderLayer = renderLayer;
m_repaintRect = dirtyRect;
// Get the zoom factor to scale the filterSourceRect input
const RenderLayerModelObject* renderer = renderLayer->renderer();
const RenderStyle* style = renderer ? renderer->style() : 0;
float zoom = style ? style->effectiveZoom() : 1.0f;
// Prepare a transformation that brings the coordinates into the space
// filter coordinates are defined in.
AffineTransform absoluteTransform;
// FIXME: Should these really be upconverted to doubles and not rounded? crbug.com/350474
absoluteTransform.translate(filterBoxRect.x().toDouble(), filterBoxRect.y().toDouble());
absoluteTransform.scale(zoom, zoom);
FilterEffectRenderer* filter = renderLayer->filterRenderer();
filter->setAbsoluteTransform(absoluteTransform);
IntRect filterSourceRect = pixelSnappedIntRect(filter->computeSourceImageRectForDirtyRect(filterBoxRect, dirtyRect));
if (filterSourceRect.isEmpty()) {
// The dirty rect is not in view, just bail out.
m_haveFilterEffect = false;
return false;
}
filter->setFilterRegion(filter->mapAbsoluteRectToLocalRect(filterSourceRect));
filter->lastEffect()->determineFilterPrimitiveSubregion(MapRectForward);
bool hasUpdatedBackingStore = filter->updateBackingStoreRect(filterSourceRect);
if (filter->hasFilterThatMovesPixels()) {
if (hasUpdatedBackingStore)
m_repaintRect = filterSourceRect;
else
m_repaintRect.intersect(filterSourceRect);
}
return true;
}
void RenderMathMLOperator::paint(PaintInfo& info, const LayoutPoint& paintOffset)
{
RenderMathMLBlock::paint(info, paintOffset);
if (info.context->paintingDisabled() || info.phase != PaintPhaseForeground)
return;
if (!m_isStretched && !m_stretchyCharacter) {
RenderMathMLBlock::paint(info, paintOffset);
return;
}
GraphicsContextStateSaver stateSaver(*info.context);
info.context->setFillColor(style()->visitedDependentColor(CSSPropertyColor), style()->colorSpace());
ASSERT(m_stretchyCharacter->topGlyph);
ASSERT(m_stretchyCharacter->bottomGlyph);
// We are positioning the glyphs so that the edge of the tight glyph bounds line up exactly with the edges of our paint box.
LayoutPoint operatorTopLeft = ceiledIntPoint(paintOffset + location());
FloatRect topGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->topGlyph);
LayoutPoint topGlyphOrigin(operatorTopLeft.x(), operatorTopLeft.y() - topGlyphBounds.y());
LayoutRect topGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->topGlyph, topGlyphOrigin, TrimBottom);
FloatRect bottomGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->bottomGlyph);
LayoutPoint bottomGlyphOrigin(operatorTopLeft.x(), operatorTopLeft.y() + offsetHeight() - (bottomGlyphBounds.height() + bottomGlyphBounds.y()));
LayoutRect bottomGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->bottomGlyph, bottomGlyphOrigin, TrimTop);
if (m_stretchyCharacter->middleGlyph) {
// Center the glyph origin between the start and end glyph paint extents. Then shift it half the paint height toward the bottom glyph.
FloatRect middleGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->middleGlyph);
LayoutPoint middleGlyphOrigin(operatorTopLeft.x(), topGlyphOrigin.y() + y());
middleGlyphOrigin.moveBy(LayoutPoint(0, (bottomGlyphPaintRect.y() - topGlyphPaintRect.maxY()) / 2.0));
middleGlyphOrigin.moveBy(LayoutPoint(0, middleGlyphBounds.height() / 2.0));
LayoutRect middleGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->middleGlyph, middleGlyphOrigin, TrimTopAndBottom);
fillWithExtensionGlyph(info, topGlyphPaintRect.minXMaxYCorner(), middleGlyphPaintRect.minXMinYCorner());
fillWithExtensionGlyph(info, middleGlyphPaintRect.minXMaxYCorner(), bottomGlyphPaintRect.minXMinYCorner());
} else
fillWithExtensionGlyph(info, topGlyphPaintRect.minXMaxYCorner(), bottomGlyphPaintRect.minXMinYCorner());
}
LayoutRect RootInlineBox::paddedLayoutOverflowRect(LayoutUnit endPadding) const
{
LayoutRect lineLayoutOverflow = layoutOverflowRect(lineTop(), lineBottom());
if (!endPadding)
return lineLayoutOverflow;
// FIXME: Audit whether to use pixel snapped values when not using integers for layout: https://bugs.webkit.org/show_bug.cgi?id=63656
if (isHorizontal()) {
if (isLeftToRightDirection())
lineLayoutOverflow.shiftMaxXEdgeTo(std::max<LayoutUnit>(lineLayoutOverflow.maxX(), pixelSnappedLogicalRight() + endPadding));
else
lineLayoutOverflow.shiftXEdgeTo(std::min<LayoutUnit>(lineLayoutOverflow.x(), pixelSnappedLogicalLeft() - endPadding));
} else {
if (isLeftToRightDirection())
lineLayoutOverflow.shiftMaxYEdgeTo(std::max<LayoutUnit>(lineLayoutOverflow.maxY(), pixelSnappedLogicalRight() + endPadding));
else
lineLayoutOverflow.shiftYEdgeTo(std::min<LayoutUnit>(lineLayoutOverflow.y(), pixelSnappedLogicalLeft() - endPadding));
}
return lineLayoutOverflow;
}
LayoutRect MultiColumnFragmentainerGroup::flowThreadPortionOverflowRectAt(unsigned columnIndex) const
{
// This function determines the portion of the flow thread that paints for the column. Along the inline axis, columns are
// unclipped at outside edges (i.e., the first and last column in the set), and they clip to half the column
// gap along interior edges.
//
// In the block direction, we will not clip overflow out of the top of the first column, or out of the bottom of
// the last column. This applies only to the true first column and last column across all column sets.
//
// FIXME: Eventually we will know overflow on a per-column basis, but we can't do this until we have a painting
// mode that understands not to paint contents from a previous column in the overflow area of a following column.
bool isFirstColumnInRow = !columnIndex;
bool isLastColumnInRow = columnIndex == actualColumnCount() - 1;
bool isLTR = m_columnSet.style()->isLeftToRightDirection();
bool isLeftmostColumn = isLTR ? isFirstColumnInRow : isLastColumnInRow;
bool isRightmostColumn = isLTR ? isLastColumnInRow : isFirstColumnInRow;
LayoutRect portionRect = flowThreadPortionRectAt(columnIndex);
bool isFirstColumnInMulticolContainer = isFirstColumnInRow && this == &m_columnSet.firstFragmentainerGroup() && !m_columnSet.previousSiblingMultiColumnSet();
bool isLastColumnInMulticolContainer = isLastColumnInRow && this == &m_columnSet.lastFragmentainerGroup() && !m_columnSet.nextSiblingMultiColumnSet();
// Calculate the overflow rectangle, based on the flow thread's, clipped at column logical
// top/bottom unless it's the first/last column.
LayoutRect overflowRect = m_columnSet.overflowRectForFlowThreadPortion(portionRect, isFirstColumnInMulticolContainer, isLastColumnInMulticolContainer);
// Avoid overflowing into neighboring columns, by clipping in the middle of adjacent column
// gaps. Also make sure that we avoid rounding errors.
LayoutUnit columnGap = m_columnSet.columnGap();
if (m_columnSet.isHorizontalWritingMode()) {
if (!isLeftmostColumn)
overflowRect.shiftXEdgeTo(portionRect.x() - columnGap / 2);
if (!isRightmostColumn)
overflowRect.shiftMaxXEdgeTo(portionRect.maxX() + columnGap - columnGap / 2);
} else {
if (!isLeftmostColumn)
overflowRect.shiftYEdgeTo(portionRect.y() - columnGap / 2);
if (!isRightmostColumn)
overflowRect.shiftMaxYEdgeTo(portionRect.maxY() + columnGap - columnGap / 2);
}
return overflowRect;
}
LayoutRect RenderMultiColumnSet::flowThreadPortionOverflowRect(const LayoutRect& portionRect, unsigned index, unsigned colCount, LayoutUnit colGap)
{
// This function determines the portion of the flow thread that paints for the column. Along the inline axis, columns are
// unclipped at outside edges (i.e., the first and last column in the set), and they clip to half the column
// gap along interior edges.
//
// In the block direction, we will not clip overflow out of the top of the first column, or out of the bottom of
// the last column. This applies only to the true first column and last column across all column sets.
//
// FIXME: Eventually we will know overflow on a per-column basis, but we can't do this until we have a painting
// mode that understands not to paint contents from a previous column in the overflow area of a following column.
// This problem applies to regions and pages as well and is not unique to columns.
RenderBlockFlow* parentFlow = toRenderBlockFlow(parent());
bool progressionReversed = parentFlow->multiColumnFlowThread()->progressionIsReversed();
bool isFirstColumn = !index;
bool isLastColumn = index == colCount - 1;
bool isLeftmostColumn = style().isLeftToRightDirection() ^ progressionReversed ? isFirstColumn : isLastColumn;
bool isRightmostColumn = style().isLeftToRightDirection() ^ progressionReversed ? isLastColumn : isFirstColumn;
// Calculate the overflow rectangle, based on the flow thread's, clipped at column logical
// top/bottom unless it's the first/last column.
LayoutRect overflowRect = overflowRectForFlowThreadPortion(portionRect, isFirstColumn && isFirstRegion(), isLastColumn && isLastRegion(), VisualOverflow);
// Avoid overflowing into neighboring columns, by clipping in the middle of adjacent column
// gaps. Also make sure that we avoid rounding errors.
if (isHorizontalWritingMode()) {
if (!isLeftmostColumn)
overflowRect.shiftXEdgeTo(portionRect.x() - colGap / 2);
if (!isRightmostColumn)
overflowRect.shiftMaxXEdgeTo(portionRect.maxX() + colGap - colGap / 2);
} else {
if (!isLeftmostColumn)
overflowRect.shiftYEdgeTo(portionRect.y() - colGap / 2);
if (!isRightmostColumn)
overflowRect.shiftMaxYEdgeTo(portionRect.maxY() + colGap - colGap / 2);
}
return overflowRect;
}
bool RenderThemeChromiumSkia::paintSearchFieldResultsButton(RenderObject* magnifierObject, const PaintInfo& paintInfo, const IntRect& r)
{
// Get the renderer of <input> element.
Node* input = magnifierObject->node()->shadowHost();
RenderObject* baseRenderer = input ? input->renderer() : magnifierObject;
if (!baseRenderer->isBox())
return false;
RenderBox* inputRenderBox = toRenderBox(baseRenderer);
LayoutRect inputContentBox = inputRenderBox->contentBoxRect();
// Make sure the scaled decoration will fit in its parent's box.
LayoutUnit magnifierHeight = std::min<LayoutUnit>(inputContentBox.height(), r.height());
LayoutUnit magnifierWidth = std::min<LayoutUnit>(inputContentBox.width(), magnifierHeight * defaultSearchFieldResultsButtonWidth / defaultSearchFieldResultsDecorationSize);
LayoutRect magnifierRect(magnifierObject->offsetFromAncestorContainer(inputRenderBox).width(),
inputContentBox.y() + (inputContentBox.height() - magnifierHeight + 1) / 2,
magnifierWidth, magnifierHeight);
IntRect paintingRect = convertToPaintingRect(inputRenderBox, magnifierObject, magnifierRect, r);
static Image* magnifierImage = Image::loadPlatformResource("searchMagnifierResults").leakRef();
paintInfo.context->drawImage(magnifierImage, magnifierObject->style()->colorSpace(), paintingRect);
return false;
}
bool FilterEffectRendererHelper::prepareFilterEffect(RenderLayer* renderLayer, const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect, const LayoutRect& layerRepaintRect)
{
ASSERT(m_haveFilterEffect && renderLayer->filterRenderer());
m_renderLayer = renderLayer;
m_repaintRect = dirtyRect;
FilterEffectRenderer* filter = renderLayer->filterRenderer();
LayoutRect filterSourceRect = filter->computeSourceImageRectForDirtyRect(filterBoxRect, dirtyRect);
if (filterSourceRect.isEmpty()) {
// The dirty rect is not in view, just bail out.
m_haveFilterEffect = false;
return false;
}
// Get the zoom factor to scale the filterSourceRect input
const RenderLayerModelObject* renderer = renderLayer->renderer();
const RenderStyle* style = renderer ? renderer->style() : 0;
float zoom = style ? style->effectiveZoom() : 1.0f;
AffineTransform absoluteTransform;
absoluteTransform.translate(filterBoxRect.x(), filterBoxRect.y());
filter->setAbsoluteTransform(absoluteTransform);
filter->setAbsoluteFilterRegion(AffineTransform().scale(zoom).mapRect(filterSourceRect));
filter->setFilterRegion(absoluteTransform.inverse().mapRect(filterSourceRect));
filter->lastEffect()->determineFilterPrimitiveSubregion();
bool hasUpdatedBackingStore = filter->updateBackingStoreRect(filterSourceRect);
if (filter->hasFilterThatMovesPixels()) {
if (hasUpdatedBackingStore)
m_repaintRect = filterSourceRect;
else {
m_repaintRect.unite(layerRepaintRect);
m_repaintRect.intersect(filterSourceRect);
}
}
return true;
}
void Paragraph::paint(Canvas* canvas, double x, double y) {
SkCanvas* skCanvas = canvas->canvas();
if (!skCanvas)
return;
FontCachePurgePreventer fontCachePurgePreventer;
// Very simplified painting to allow painting an arbitrary (layer-less)
// subtree.
RenderBox* box = firstChildBox();
skCanvas->translate(x, y);
GraphicsContext context(skCanvas);
Vector<RenderBox*> layers;
LayoutRect bounds = box->absoluteBoundingBoxRect();
FTL_DCHECK(bounds.x() == 0 && bounds.y() == 0);
PaintInfo paintInfo(&context, enclosingIntRect(bounds), box);
box->paint(paintInfo, LayoutPoint(), layers);
// Note we're ignoring any layers encountered.
// TODO(abarth): Remove the concept of RenderLayers.
skCanvas->translate(-x, -y);
}
bool LineBoxList::rangeIntersectsRect(LayoutBoxModelObject* renderer, LayoutUnit logicalTop, LayoutUnit logicalBottom, const LayoutRect& rect, const LayoutPoint& offset) const
{
LayoutBox* block;
if (renderer->isBox())
block = toLayoutBox(renderer);
else
block = renderer->containingBlock();
LayoutUnit physicalStart = block->flipForWritingMode(logicalTop);
LayoutUnit physicalEnd = block->flipForWritingMode(logicalBottom);
LayoutUnit physicalExtent = absoluteValue(physicalEnd - physicalStart);
physicalStart = std::min(physicalStart, physicalEnd);
if (renderer->style()->isHorizontalWritingMode()) {
physicalStart += offset.y();
if (physicalStart >= rect.maxY() || physicalStart + physicalExtent <= rect.y())
return false;
} else {
physicalStart += offset.x();
if (physicalStart >= rect.maxX() || physicalStart + physicalExtent <= rect.x())
return false;
}
return true;
}
bool RenderReplaced::shouldPaint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseOutline && paintInfo.phase != PaintPhaseSelfOutline
&& paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseMask)
return false;
if (!paintInfo.shouldPaintWithinRoot(*this))
return false;
// if we're invisible or haven't received a layout yet, then just bail.
if (style().visibility() != VISIBLE)
return false;
LayoutPoint adjustedPaintOffset = paintOffset + location();
// Early exit if the element touches the edges.
LayoutUnit top = adjustedPaintOffset.y() + visualOverflowRect().y();
LayoutUnit bottom = adjustedPaintOffset.y() + visualOverflowRect().maxY();
if (isSelected() && m_inlineBoxWrapper) {
const RootInlineBox& rootBox = m_inlineBoxWrapper->root();
LayoutUnit selTop = paintOffset.y() + rootBox.selectionTop();
LayoutUnit selBottom = paintOffset.y() + selTop + rootBox.selectionHeight();
top = std::min(selTop, top);
bottom = std::max(selBottom, bottom);
}
LayoutRect localRepaintRect = paintInfo.rect;
localRepaintRect.inflate(maximalOutlineSize(paintInfo.phase));
if (adjustedPaintOffset.x() + visualOverflowRect().x() >= localRepaintRect.maxX() || adjustedPaintOffset.x() + visualOverflowRect().maxX() <= localRepaintRect.x())
return false;
if (top >= localRepaintRect.maxY() || bottom <= localRepaintRect.y())
return false;
return true;
}
bool RenderThemeChromiumSkia::paintSearchFieldResultsDecoration(RenderObject* magnifierObject, const PaintInfo& paintInfo, const IntRect& r)
{
// Get the renderer of <input> element.
Node* input = magnifierObject->node()->shadowHost();
RenderObject* baseRenderer = input ? input->renderer() : magnifierObject;
if (!baseRenderer->isBox())
return false;
RenderBox* inputRenderBox = toRenderBox(baseRenderer);
LayoutRect inputContentBox = inputRenderBox->contentBoxRect();
// Make sure the scaled decoration stays square and will fit in its parent's box.
LayoutUnit magnifierSize = std::min(inputContentBox.width(), std::min<LayoutUnit>(inputContentBox.height(), r.height()));
// Calculate decoration's coordinates relative to the input element.
// Center the decoration vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
LayoutRect magnifierRect(magnifierObject->offsetFromAncestorContainer(inputRenderBox).width(),
inputContentBox.y() + (inputContentBox.height() - magnifierSize + 1) / 2,
magnifierSize, magnifierSize);
IntRect paintingRect = convertToPaintingRect(inputRenderBox, magnifierObject, magnifierRect, r);
static Image* magnifierImage = Image::loadPlatformResource("searchMagnifier").leakRef();
paintInfo.context->drawImage(magnifierImage, magnifierObject->style()->colorSpace(), paintingRect);
return false;
}
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);
}
static void buildRendererHighlight(RenderObject* renderer, RenderRegion* region, const HighlightConfig& highlightConfig, Highlight* highlight, InspectorOverlay::CoordinateSystem coordinateSystem)
{
Frame* containingFrame = renderer->document().frame();
if (!containingFrame)
return;
highlight->setDataFromConfig(highlightConfig);
FrameView* containingView = containingFrame->view();
FrameView* mainView = containingFrame->page()->mainFrame().view();
// RenderSVGRoot should be highlighted through the isBox() code path, all other SVG elements should just dump their absoluteQuads().
bool isSVGRenderer = renderer->node() && renderer->node()->isSVGElement() && !renderer->isSVGRoot();
if (isSVGRenderer) {
highlight->type = HighlightTypeRects;
renderer->absoluteQuads(highlight->quads);
for (size_t i = 0; i < highlight->quads.size(); ++i)
contentsQuadToCoordinateSystem(mainView, containingView, highlight->quads[i], coordinateSystem);
} else if (renderer->isBox() || renderer->isRenderInline()) {
LayoutRect contentBox;
LayoutRect paddingBox;
LayoutRect borderBox;
LayoutRect marginBox;
if (renderer->isBox()) {
RenderBox* renderBox = toRenderBox(renderer);
LayoutBoxExtent margins(renderBox->marginTop(), renderBox->marginRight(), renderBox->marginBottom(), renderBox->marginLeft());
if (!renderBox->isOutOfFlowPositioned() && region) {
RenderBox::LogicalExtentComputedValues computedValues;
renderBox->computeLogicalWidthInRegion(computedValues, region);
margins.mutableLogicalLeft(renderBox->style().writingMode()) = computedValues.m_margins.m_start;
margins.mutableLogicalRight(renderBox->style().writingMode()) = computedValues.m_margins.m_end;
}
paddingBox = renderBox->clientBoxRectInRegion(region);
contentBox = LayoutRect(paddingBox.x() + renderBox->paddingLeft(), paddingBox.y() + renderBox->paddingTop(),
paddingBox.width() - renderBox->paddingLeft() - renderBox->paddingRight(), paddingBox.height() - renderBox->paddingTop() - renderBox->paddingBottom());
borderBox = LayoutRect(paddingBox.x() - renderBox->borderLeft(), paddingBox.y() - renderBox->borderTop(),
paddingBox.width() + renderBox->borderLeft() + renderBox->borderRight(), paddingBox.height() + renderBox->borderTop() + renderBox->borderBottom());
marginBox = LayoutRect(borderBox.x() - margins.left(), borderBox.y() - margins.top(),
borderBox.width() + margins.left() + margins.right(), borderBox.height() + margins.top() + margins.bottom());
} else {
RenderInline* renderInline = toRenderInline(renderer);
// RenderInline's bounding box includes paddings and borders, excludes margins.
borderBox = renderInline->linesBoundingBox();
paddingBox = LayoutRect(borderBox.x() + renderInline->borderLeft(), borderBox.y() + renderInline->borderTop(),
borderBox.width() - renderInline->borderLeft() - renderInline->borderRight(), borderBox.height() - renderInline->borderTop() - renderInline->borderBottom());
contentBox = LayoutRect(paddingBox.x() + renderInline->paddingLeft(), paddingBox.y() + renderInline->paddingTop(),
paddingBox.width() - renderInline->paddingLeft() - renderInline->paddingRight(), paddingBox.height() - renderInline->paddingTop() - renderInline->paddingBottom());
// Ignore marginTop and marginBottom for inlines.
marginBox = LayoutRect(borderBox.x() - renderInline->marginLeft(), borderBox.y(),
borderBox.width() + renderInline->horizontalMarginExtent(), borderBox.height());
}
FloatQuad absContentQuad;
FloatQuad absPaddingQuad;
FloatQuad absBorderQuad;
FloatQuad absMarginQuad;
if (region) {
RenderFlowThread* flowThread = region->flowThread();
// Figure out the quads in the space of the RenderFlowThread.
absContentQuad = renderer->localToContainerQuad(FloatRect(contentBox), flowThread);
absPaddingQuad = renderer->localToContainerQuad(FloatRect(paddingBox), flowThread);
absBorderQuad = renderer->localToContainerQuad(FloatRect(borderBox), flowThread);
absMarginQuad = renderer->localToContainerQuad(FloatRect(marginBox), flowThread);
// Move the quad relative to the space of the current region.
LayoutRect flippedRegionRect(region->flowThreadPortionRect());
flowThread->flipForWritingMode(flippedRegionRect);
FloatSize delta = region->contentBoxRect().location() - flippedRegionRect.location();
absContentQuad.move(delta);
absPaddingQuad.move(delta);
absBorderQuad.move(delta);
absMarginQuad.move(delta);
// Resolve the absolute quads starting from the current region.
absContentQuad = region->localToAbsoluteQuad(absContentQuad);
absPaddingQuad = region->localToAbsoluteQuad(absPaddingQuad);
absBorderQuad = region->localToAbsoluteQuad(absBorderQuad);
absMarginQuad = region->localToAbsoluteQuad(absMarginQuad);
} else {
absContentQuad = renderer->localToAbsoluteQuad(FloatRect(contentBox));
absPaddingQuad = renderer->localToAbsoluteQuad(FloatRect(paddingBox));
absBorderQuad = renderer->localToAbsoluteQuad(FloatRect(borderBox));
absMarginQuad = renderer->localToAbsoluteQuad(FloatRect(marginBox));
}
contentsQuadToCoordinateSystem(mainView, containingView, absContentQuad, coordinateSystem);
contentsQuadToCoordinateSystem(mainView, containingView, absPaddingQuad, coordinateSystem);
contentsQuadToCoordinateSystem(mainView, containingView, absBorderQuad, coordinateSystem);
contentsQuadToCoordinateSystem(mainView, containingView, absMarginQuad, coordinateSystem);
highlight->type = HighlightTypeNode;
highlight->quads.append(absMarginQuad);
highlight->quads.append(absBorderQuad);
highlight->quads.append(absPaddingQuad);
highlight->quads.append(absContentQuad);
}
}
LayoutUnit RenderRegion::logicalTopOfFlowThreadContentRect(const LayoutRect& rect) const
{
ASSERT(isValid());
return flowThread()->isHorizontalWritingMode() ? rect.y() : rect.x();
}
bool LayoutRect::contains(const LayoutRect& other) const
{
return x() <= other.x() && maxX() >= other.maxX()
&& y() <= other.y() && maxY() >= other.maxY();
}
IntPoint AccessibilityObject::clickPoint()
{
LayoutRect rect = elementRect();
return roundedIntPoint(LayoutPoint(rect.x() + rect.width() / 2, rect.y() + rect.height() / 2));
}
IntRect::IntRect(const LayoutRect& r)
: m_location(r.x(), r.y())
, m_size(r.width(), r.height())
{
}
void InlinePainter::paintOutlineForLine(GraphicsContext* graphicsContext, const LayoutPoint& paintOffset,
const LayoutRect& lastline, const LayoutRect& thisline, const LayoutRect& nextline, const Color outlineColor)
{
RenderStyle* styleToUse = m_renderInline.style();
int outlineWidth = styleToUse->outlineWidth();
EBorderStyle outlineStyle = styleToUse->outlineStyle();
bool antialias = BoxPainter::shouldAntialiasLines(graphicsContext);
int offset = m_renderInline.style()->outlineOffset();
LayoutRect box(LayoutPoint(paintOffset.x() + thisline.x() - offset, paintOffset.y() + thisline.y() - offset),
LayoutSize(thisline.width() + offset, thisline.height() + offset));
IntRect pixelSnappedBox = pixelSnappedIntRect(box);
if (pixelSnappedBox.width() < 0 || pixelSnappedBox.height() < 0)
return;
IntRect pixelSnappedLastLine = pixelSnappedIntRect(paintOffset.x() + lastline.x(), 0, lastline.width(), 0);
IntRect pixelSnappedNextLine = pixelSnappedIntRect(paintOffset.x() + nextline.x(), 0, nextline.width(), 0);
// left edge
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.x() - outlineWidth,
pixelSnappedBox.y() - (lastline.isEmpty() || thisline.x() < lastline.x() || (lastline.maxX() - 1) <= thisline.x() ? outlineWidth : 0),
pixelSnappedBox.x(),
pixelSnappedBox.maxY() + (nextline.isEmpty() || thisline.x() <= nextline.x() || (nextline.maxX() - 1) <= thisline.x() ? outlineWidth : 0),
BSLeft,
outlineColor, outlineStyle,
(lastline.isEmpty() || thisline.x() < lastline.x() || (lastline.maxX() - 1) <= thisline.x() ? outlineWidth : -outlineWidth),
(nextline.isEmpty() || thisline.x() <= nextline.x() || (nextline.maxX() - 1) <= thisline.x() ? outlineWidth : -outlineWidth),
antialias);
// right edge
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.maxX(),
pixelSnappedBox.y() - (lastline.isEmpty() || lastline.maxX() < thisline.maxX() || (thisline.maxX() - 1) <= lastline.x() ? outlineWidth : 0),
pixelSnappedBox.maxX() + outlineWidth,
pixelSnappedBox.maxY() + (nextline.isEmpty() || nextline.maxX() <= thisline.maxX() || (thisline.maxX() - 1) <= nextline.x() ? outlineWidth : 0),
BSRight,
outlineColor, outlineStyle,
(lastline.isEmpty() || lastline.maxX() < thisline.maxX() || (thisline.maxX() - 1) <= lastline.x() ? outlineWidth : -outlineWidth),
(nextline.isEmpty() || nextline.maxX() <= thisline.maxX() || (thisline.maxX() - 1) <= nextline.x() ? outlineWidth : -outlineWidth),
antialias);
// upper edge
if (thisline.x() < lastline.x()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.x() - outlineWidth,
pixelSnappedBox.y() - outlineWidth,
std::min(pixelSnappedBox.maxX() + outlineWidth, (lastline.isEmpty() ? 1000000 : pixelSnappedLastLine.x())),
pixelSnappedBox.y(),
BSTop, outlineColor, outlineStyle,
outlineWidth,
(!lastline.isEmpty() && paintOffset.x() + lastline.x() + 1 < pixelSnappedBox.maxX() + outlineWidth) ? -outlineWidth : outlineWidth,
antialias);
}
if (lastline.maxX() < thisline.maxX()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
std::max(lastline.isEmpty() ? -1000000 : pixelSnappedLastLine.maxX(), pixelSnappedBox.x() - outlineWidth),
pixelSnappedBox.y() - outlineWidth,
pixelSnappedBox.maxX() + outlineWidth,
pixelSnappedBox.y(),
BSTop, outlineColor, outlineStyle,
(!lastline.isEmpty() && pixelSnappedBox.x() - outlineWidth < paintOffset.x() + lastline.maxX()) ? -outlineWidth : outlineWidth,
outlineWidth, antialias);
}
if (thisline.x() == thisline.maxX()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.x() - outlineWidth,
pixelSnappedBox.y() - outlineWidth,
pixelSnappedBox.maxX() + outlineWidth,
pixelSnappedBox.y(),
BSTop, outlineColor, outlineStyle,
outlineWidth,
outlineWidth,
antialias);
}
// lower edge
if (thisline.x() < nextline.x()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.x() - outlineWidth,
pixelSnappedBox.maxY(),
std::min(pixelSnappedBox.maxX() + outlineWidth, !nextline.isEmpty() ? pixelSnappedNextLine.x() + 1 : 1000000),
pixelSnappedBox.maxY() + outlineWidth,
BSBottom, outlineColor, outlineStyle,
outlineWidth,
(!nextline.isEmpty() && paintOffset.x() + nextline.x() + 1 < pixelSnappedBox.maxX() + outlineWidth) ? -outlineWidth : outlineWidth,
antialias);
}
if (nextline.maxX() < thisline.maxX()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
std::max(!nextline.isEmpty() ? pixelSnappedNextLine.maxX() : -1000000, pixelSnappedBox.x() - outlineWidth),
pixelSnappedBox.maxY(),
pixelSnappedBox.maxX() + outlineWidth,
pixelSnappedBox.maxY() + outlineWidth,
BSBottom, outlineColor, outlineStyle,
(!nextline.isEmpty() && pixelSnappedBox.x() - outlineWidth < paintOffset.x() + nextline.maxX()) ? -outlineWidth : outlineWidth,
outlineWidth, antialias);
}
if (thisline.x() == thisline.maxX()) {
ObjectPainter::drawLineForBoxSide(graphicsContext,
pixelSnappedBox.x() - outlineWidth,
pixelSnappedBox.maxY(),
pixelSnappedBox.maxX() + outlineWidth,
pixelSnappedBox.maxY() + outlineWidth,
BSBottom, outlineColor, outlineStyle,
outlineWidth,
outlineWidth,
antialias);
}
}
bool RenderEmbeddedObject::isReplacementObscured() const
{
// Return whether or not the replacement content for blocked plugins is accessible to the user.
// Check the opacity of each layer containing the element or its ancestors.
float opacity = 1.0;
for (RenderLayer* layer = enclosingLayer(); layer; layer = layer->parent()) {
RenderLayerModelObject* renderer = layer->renderer();
RenderStyle* style = renderer->style();
opacity *= style->opacity();
if (opacity < 0.1)
return true;
}
// Calculate the absolute rect for the blocked plugin replacement text.
IntRect absoluteBoundingBox = absoluteBoundingBoxRect();
LayoutPoint absoluteLocation(absoluteBoundingBox.location());
LayoutRect rect = replacementTextRect(absoluteLocation);
if (rect.isEmpty())
return true;
RenderView* docRenderer = document()->renderView();
ASSERT(docRenderer);
if (!docRenderer)
return true;
HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::DisallowShadowContent);
HitTestResult result;
HitTestLocation location;
LayoutUnit x = rect.x();
LayoutUnit y = rect.y();
LayoutUnit width = rect.width();
LayoutUnit height = rect.height();
// Hit test the center and near the corners of the replacement text to ensure
// it is visible and is not masked by other elements.
bool hit = false;
location = LayoutPoint(x + width / 2, y + height / 2);
hit = docRenderer->hitTest(request, location, result);
if (!hit || result.innerNode() != node())
return true;
location = LayoutPoint(x, y);
hit = docRenderer->hitTest(request, location, result);
if (!hit || result.innerNode() != node())
return true;
location = LayoutPoint(x + width, y);
hit = docRenderer->hitTest(request, location, result);
if (!hit || result.innerNode() != node())
return true;
location = LayoutPoint(x + width, y + height);
hit = docRenderer->hitTest(request, location, result);
if (!hit || result.innerNode() != node())
return true;
location = LayoutPoint(x, y + height);
hit = docRenderer->hitTest(request, location, result);
if (!hit || result.innerNode() != node())
return true;
return false;
}
void RenderMultiColumnSet::collectLayerFragments(LayerFragments& fragments, const LayoutRect& layerBoundingBox, const LayoutRect& dirtyRect)
{
// The two rectangles passed to this method are physical, except that we pretend that there's
// only one long column (that's how a flow thread works).
//
// Then there's the output from this method - the stuff we put into the list of fragments. The
// fragment.paginationOffset point is the actual physical translation required to get from a
// location in the flow thread to a location in a given column. The fragment.paginationClip
// rectangle, on the other hand, is in the same coordinate system as the two rectangles passed
// to this method (flow thread coordinates).
//
// All other rectangles in this method are sized physically, and the inline direction coordinate
// is physical too, but the block direction coordinate is "logical top". This is the same as
// e.g. RenderBox::frameRect(). These rectangles also pretend that there's only one long column,
// i.e. they are for the flow thread.
// Put the layer bounds into flow thread-local coordinates by flipping it first. Since we're in
// a renderer, most rectangles are represented this way.
LayoutRect layerBoundsInFlowThread(layerBoundingBox);
flowThread()->flipForWritingMode(layerBoundsInFlowThread);
// Now we can compare with the flow thread portions owned by each column. First let's
// see if the rect intersects our flow thread portion at all.
LayoutRect clippedRect(layerBoundsInFlowThread);
clippedRect.intersect(RenderRegion::flowThreadPortionOverflowRect());
if (clippedRect.isEmpty())
return;
// Now we know we intersect at least one column. Let's figure out the logical top and logical
// bottom of the area we're checking.
LayoutUnit layerLogicalTop = isHorizontalWritingMode() ? layerBoundsInFlowThread.y() : layerBoundsInFlowThread.x();
LayoutUnit layerLogicalBottom = (isHorizontalWritingMode() ? layerBoundsInFlowThread.maxY() : layerBoundsInFlowThread.maxX()) - 1;
// Figure out the start and end columns and only check within that range so that we don't walk the
// entire column set.
unsigned startColumn = columnIndexAtOffset(layerLogicalTop);
unsigned endColumn = columnIndexAtOffset(layerLogicalBottom);
LayoutUnit colLogicalWidth = computedColumnWidth();
LayoutUnit colGap = columnGap();
unsigned colCount = columnCount();
for (unsigned i = startColumn; i <= endColumn; i++) {
// 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);
// In order to create a fragment we must intersect the portion painted by this column.
LayoutRect clippedRect(layerBoundsInFlowThread);
clippedRect.intersect(flowThreadOverflowPortion);
if (clippedRect.isEmpty())
continue;
// We also need to intersect the dirty rect. We have to apply a translation and shift based off
// our column index.
LayoutPoint translationOffset;
LayoutUnit inlineOffset = i * (colLogicalWidth + colGap);
if (!style()->isLeftToRightDirection())
inlineOffset = -inlineOffset;
translationOffset.setX(inlineOffset);
LayoutUnit blockOffset = isHorizontalWritingMode() ? -flowThreadPortion.y() : -flowThreadPortion.x();
if (isFlippedBlocksWritingMode(style()->writingMode()))
blockOffset = -blockOffset;
translationOffset.setY(blockOffset);
if (!isHorizontalWritingMode())
translationOffset = translationOffset.transposedPoint();
// FIXME: The translation needs to include the multicolumn set's content offset within the
// multicolumn block as well. This won't be an issue until we start creating multiple multicolumn sets.
// Shift the dirty rect to be in flow thread coordinates with this translation applied.
LayoutRect translatedDirtyRect(dirtyRect);
translatedDirtyRect.moveBy(-translationOffset);
// See if we intersect the dirty rect.
clippedRect = layerBoundingBox;
clippedRect.intersect(translatedDirtyRect);
if (clippedRect.isEmpty())
continue;
// Something does need to paint in this column. Make a fragment now and supply the physical translation
// offset and the clip rect for the column with that offset applied.
LayerFragment fragment;
fragment.paginationOffset = translationOffset;
LayoutRect flippedFlowThreadOverflowPortion(flowThreadOverflowPortion);
// Flip it into more a physical (RenderLayer-style) rectangle.
flowThread()->flipForWritingMode(flippedFlowThreadOverflowPortion);
fragment.paginationClip = flippedFlowThreadOverflowPortion;
fragments.append(fragment);
}
}
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;
}
