bool RenderFlowThread::hitTestFlowThreadPortionInRegion(RenderRegion* region, LayoutRect flowThreadPortionRect, LayoutRect flowThreadPortionOverflowRect, const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) const
{
LayoutRect regionClippingRect(accumulatedOffset + (flowThreadPortionOverflowRect.location() - flowThreadPortionRect.location()), flowThreadPortionOverflowRect.size());
if (!regionClippingRect.contains(locationInContainer.point()))
return false;
LayoutSize renderFlowThreadOffset;
if (style()->isFlippedBlocksWritingMode()) {
LayoutRect flippedFlowThreadPortionRect(flowThreadPortionRect);
flipForWritingMode(flippedFlowThreadPortionRect);
renderFlowThreadOffset = accumulatedOffset - flippedFlowThreadPortionRect.location();
} else
renderFlowThreadOffset = accumulatedOffset - flowThreadPortionRect.location();
// Always ignore clipping, since the RenderFlowThread has nothing to do with the bounds of the FrameView.
HitTestRequest newRequest(request.type() | HitTestRequest::IgnoreClipping);
// Make a new temporary HitTestLocation in the new region.
HitTestLocation newHitTestLocation(locationInContainer, -renderFlowThreadOffset, region);
bool isPointInsideFlowThread = layer()->hitTest(newRequest, newHitTestLocation, result);
// FIXME: Should we set result.m_localPoint back to the RenderRegion's coordinate space or leave it in the RenderFlowThread's coordinate
// space? Right now it's staying in the RenderFlowThread's coordinate space, which may end up being ok. We will know more when we get around to
// patching positionForPoint.
return isPointInsideFlowThread;
}
LayoutPoint MultiColumnFragmentainerGroup::visualPointToFlowThreadPoint(const LayoutPoint& visualPoint) const
{
unsigned columnIndex = columnIndexAtVisualPoint(visualPoint);
LayoutRect columnRect = columnRectAt(columnIndex);
LayoutPoint localPoint(visualPoint);
localPoint.moveBy(-columnRect.location());
// Before converting to a flow thread position, if the block direction coordinate is outside the
// column, snap to the bounds of the column, and reset the inline direction coordinate to the
// start position in the column. The effect of this is that if the block position is before the
// column rectangle, we'll get to the beginning of this column, while if the block position is
// after the column rectangle, we'll get to the beginning of the next column.
if (!m_columnSet.isHorizontalWritingMode()) {
LayoutUnit columnStart = m_columnSet.style()->isLeftToRightDirection() ? LayoutUnit() : columnRect.height();
if (localPoint.x() < 0)
localPoint = LayoutPoint(LayoutUnit(), columnStart);
else if (localPoint.x() > logicalHeight())
localPoint = LayoutPoint(logicalHeight(), columnStart);
return LayoutPoint(localPoint.x() + logicalTopInFlowThreadAt(columnIndex), localPoint.y());
}
LayoutUnit columnStart = m_columnSet.style()->isLeftToRightDirection() ? LayoutUnit() : columnRect.width();
if (localPoint.y() < 0)
localPoint = LayoutPoint(columnStart, LayoutUnit());
else if (localPoint.y() > logicalHeight())
localPoint = LayoutPoint(columnStart, logicalHeight());
return LayoutPoint(localPoint.x(), localPoint.y() + logicalTopInFlowThreadAt(columnIndex));
}
AccessibilityObject* AccessibilityListBox::elementAccessibilityHitTest(const LayoutPoint& point) const
{
// the internal HTMLSelectElement methods for returning a listbox option at a point
// ignore optgroup elements.
if (!m_renderer)
return 0;
Node* node = m_renderer->node();
if (!node)
return 0;
LayoutRect parentRect = boundingBoxRect();
AccessibilityObject* listBoxOption = 0;
unsigned length = m_children.size();
for (unsigned i = 0; i < length; i++) {
LayoutRect rect = toRenderListBox(m_renderer)->itemBoundingBoxRect(parentRect.location(), i);
// The cast to HTMLElement below is safe because the only other possible listItem type
// would be a WMLElement, but WML builds don't use accessibility features at all.
if (rect.contains(point)) {
listBoxOption = m_children[i].get();
break;
}
}
if (listBoxOption && !listBoxOption->accessibilityIsIgnored())
return listBoxOption;
return axObjectCache()->getOrCreate(m_renderer);
}
FloatPoint RotationViewportAnchor::getInnerOrigin(
const FloatSize& innerSize) const {
if (!m_anchorNode || !m_anchorNode->isConnected())
return m_visualViewportInDocument;
const LayoutRect currentNodeBounds = m_anchorNode->boundingBox();
if (m_anchorNodeBounds == currentNodeBounds)
return m_visualViewportInDocument;
RootFrameViewport* rootFrameViewport =
m_rootFrameView->getRootFrameViewport();
const LayoutRect currentNodeBoundsInLayoutViewport =
rootFrameViewport->rootContentsToLayoutViewportContents(
*m_rootFrameView.get(), currentNodeBounds);
// Compute the new anchor point relative to the node position
FloatSize anchorOffsetFromNode(currentNodeBoundsInLayoutViewport.size());
anchorOffsetFromNode.scale(m_anchorInNodeCoords.width(),
m_anchorInNodeCoords.height());
FloatPoint anchorPoint =
FloatPoint(currentNodeBoundsInLayoutViewport.location()) +
anchorOffsetFromNode;
// Compute the new origin point relative to the new anchor point
FloatSize anchorOffsetFromOrigin = innerSize;
anchorOffsetFromOrigin.scale(m_anchorInInnerViewCoords.width(),
m_anchorInInnerViewCoords.height());
return anchorPoint - anchorOffsetFromOrigin;
}
bool RenderFlowThread::hitTestRegion(RenderRegion* region, const HitTestRequest& request, HitTestResult& result, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset)
{
LayoutRect regionRect(region->regionRect());
LayoutRect regionOverflowRect = region->regionOverflowRect();
LayoutRect regionClippingRect(accumulatedOffset + (regionOverflowRect.location() - regionRect.location()), regionOverflowRect.size());
if (!regionClippingRect.contains(pointInContainer))
return false;
LayoutPoint renderFlowThreadOffset;
if (style()->isFlippedBlocksWritingMode()) {
LayoutRect flippedRegionRect(regionRect);
flipForWritingMode(flippedRegionRect);
renderFlowThreadOffset = LayoutPoint(accumulatedOffset - flippedRegionRect.location());
} else
renderFlowThreadOffset = LayoutPoint(accumulatedOffset - regionRect.location());
LayoutPoint transformedPoint(pointInContainer.x() - renderFlowThreadOffset.x(), pointInContainer.y() - renderFlowThreadOffset.y());
// Always ignore clipping, since the RenderFlowThread has nothing to do with the bounds of the FrameView.
HitTestRequest newRequest(request.type() | HitTestRequest::IgnoreClipping);
RenderRegion* oldRegion = result.region();
result.setRegion(region);
LayoutPoint oldPoint = result.point();
result.setPoint(transformedPoint);
bool isPointInsideFlowThread = layer()->hitTest(newRequest, result);
result.setPoint(oldPoint);
result.setRegion(oldRegion);
// FIXME: Should we set result.m_localPoint back to the RenderRegion's coordinate space or leave it in the RenderFlowThread's coordinate
// space? Right now it's staying in the RenderFlowThread's coordinate space, which may end up being ok. We will know more when we get around to
// patching positionForPoint.
return isPointInsideFlowThread;
}
LayoutRect RenderFlowThread::computeRegionClippingRect(const LayoutPoint& offset, const LayoutRect& flowThreadPortionRect, const LayoutRect& flowThreadPortionOverflowRect) const
{
LayoutRect regionClippingRect(offset + (flowThreadPortionOverflowRect.location() - flowThreadPortionRect.location()), flowThreadPortionOverflowRect.size());
if (style()->isFlippedBlocksWritingMode())
regionClippingRect.move(flowThreadPortionRect.size() - flowThreadPortionOverflowRect.size());
return regionClippingRect;
}
// Abs x/y position of the caret ignoring transforms.
// TODO(yosin) navigation with transforms should be smarter.
static LayoutUnit lineDirectionPointForBlockDirectionNavigationOf(
const VisiblePosition& visiblePosition) {
if (visiblePosition.isNull())
return LayoutUnit();
LayoutObject* layoutObject;
LayoutRect localRect = localCaretRectOfPosition(
visiblePosition.toPositionWithAffinity(), layoutObject);
if (localRect.isEmpty() || !layoutObject)
return LayoutUnit();
// This ignores transforms on purpose, for now. Vertical navigation is done
// without consulting transforms, so that 'up' in transformed text is 'up'
// relative to the text, not absolute 'up'.
FloatPoint caretPoint =
layoutObject->localToAbsolute(FloatPoint(localRect.location()));
LayoutObject* containingBlock = layoutObject->containingBlock();
if (!containingBlock) {
// Just use ourselves to determine the writing mode if we have no containing
// block.
containingBlock = layoutObject;
}
return LayoutUnit(containingBlock->isHorizontalWritingMode()
? caretPoint.x()
: caretPoint.y());
}
void TableCellPainter::paintBackgroundsBehindCell(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutObject* backgroundObject)
{
if (!paintInfo.shouldPaintWithinRoot(&m_layoutTableCell))
return;
if (!backgroundObject)
return;
if (m_layoutTableCell.style()->visibility() != VISIBLE)
return;
LayoutTable* tableElt = m_layoutTableCell.table();
if (!tableElt->collapseBorders() && m_layoutTableCell.style()->emptyCells() == HIDE && !m_layoutTableCell.firstChild())
return;
Color c = backgroundObject->resolveColor(CSSPropertyBackgroundColor);
const FillLayer& bgLayer = backgroundObject->style()->backgroundLayers();
LayoutRect paintRect = paintBounds(paintOffset, backgroundObject != &m_layoutTableCell ? AddOffsetFromParent : DoNotAddOffsetFromParent);
if (bgLayer.hasImage() || c.alpha()) {
// We have to clip here because the background would paint
// on top of the borders otherwise. This only matters for cells and rows.
bool shouldClip = backgroundObject->hasLayer() && (backgroundObject == &m_layoutTableCell || backgroundObject == m_layoutTableCell.parent()) && tableElt->collapseBorders();
GraphicsContextStateSaver stateSaver(*paintInfo.context, shouldClip);
if (shouldClip) {
LayoutRect clipRect(paintRect.location(), m_layoutTableCell.size());
clipRect.expand(m_layoutTableCell.borderInsets());
paintInfo.context->clip(clipRect);
}
BoxPainter(m_layoutTableCell).paintFillLayers(paintInfo, c, bgLayer, paintRect, BackgroundBleedNone, SkXfermode::kSrcOver_Mode, backgroundObject);
}
}
void SVGRootInlineBox::layoutRootBox(const FloatRect& childRect)
{
RenderBlock* parentBlock = block();
ASSERT(parentBlock);
// Finally, assign the root block position, now that all content is laid out.
LayoutRect boundingRect = enclosingLayoutRect(childRect);
parentBlock->setLocation(boundingRect.location());
parentBlock->setSize(boundingRect.size());
// Position all children relative to the parent block.
for (InlineBox* child = firstChild(); child; child = child->nextOnLine()) {
// Skip generated content.
if (!child->renderer()->node())
continue;
child->adjustPosition(-childRect.x(), -childRect.y());
}
// Position ourselves.
setX(0);
setY(0);
setLogicalWidth(childRect.width());
setLogicalHeight(childRect.height());
setLineTopBottomPositions(0, boundingRect.height(), 0, boundingRect.height());
}
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);
m_paintOffset = filterSourceRect.location();
if (filterSourceRect.isEmpty()) {
// The dirty rect is not in view, just bail out.
m_haveFilterEffect = false;
return false;
}
bool hasUpdatedBackingStore = filter->updateBackingStoreRect(filterSourceRect);
if (filter->hasFilterThatMovesPixels()) {
if (hasUpdatedBackingStore)
m_repaintRect = filterSourceRect;
else {
m_repaintRect.unite(layerRepaintRect);
m_repaintRect.intersect(filterSourceRect);
}
}
return true;
}
LayoutUnit LayoutMedia::computePanelWidth(const LayoutRect& mediaRect) const {
// TODO(mlamouri): we don't know if the main frame has an horizontal scrollbar
// if it is out of process. See https://crbug.com/662480
if (document().page()->mainFrame()->isRemoteFrame())
return mediaRect.width();
FrameHost* frameHost = document().frameHost();
LocalFrame* mainFrame = document().page()->deprecatedLocalMainFrame();
FrameView* pageView = mainFrame ? mainFrame->view() : nullptr;
if (!frameHost || !mainFrame || !pageView)
return mediaRect.width();
if (pageView->horizontalScrollbarMode() != ScrollbarAlwaysOff)
return mediaRect.width();
// On desktop, this will include scrollbars when they stay visible.
const LayoutUnit visibleWidth(frameHost->visualViewport().visibleWidth());
const LayoutUnit absoluteXOffset(
localToAbsolute(
FloatPoint(mediaRect.location()),
UseTransforms | ApplyContainerFlip | TraverseDocumentBoundaries)
.x());
DCHECK_GE(visibleWidth - absoluteXOffset, 0);
return std::min(mediaRect.width(), visibleWidth - absoluteXOffset);
}
LayoutRect FilterEffectRenderer::computeSourceImageRectForDirtyRect(const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect)
{
if (hasCustomShaderFilter()) {
// When we have at least a custom shader in the chain, we need to compute the whole source image, because the shader can
// reference any pixel and we cannot control that.
return filterBoxRect;
}
// The result of this function is the area in the "filterBoxRect" that needs to be repainted, so that we fully cover the "dirtyRect".
FloatRect rectForRepaint = dirtyRect;
rectForRepaint.move(-filterBoxRect.location().x(), -filterBoxRect.location().y());
float inf = std::numeric_limits<float>::infinity();
FloatRect clipRect = FloatRect(FloatPoint(-inf, -inf), FloatSize(inf, inf));
rectForRepaint = lastEffect()->getSourceRect(rectForRepaint, clipRect);
rectForRepaint.move(filterBoxRect.location().x(), filterBoxRect.location().y());
rectForRepaint.intersect(filterBoxRect);
return LayoutRect(rectForRepaint);
}
void RenderRegion::adjustRegionBoundsFromFlowThreadPortionRect(const LayoutPoint& layerOffset, LayoutRect& regionBounds)
{
LayoutRect flippedFlowThreadPortionRect = flowThreadPortionRect();
flowThread()->flipForWritingMode(flippedFlowThreadPortionRect);
regionBounds.moveBy(flippedFlowThreadPortionRect.location());
UNUSED_PARAM(layerOffset);
}
LayoutRect InlineBox::logicalRectToPhysicalRect(const LayoutRect& current)
{
LayoutRect retval = current;
if (!isHorizontal()) {
retval = retval.transposedRect();
}
retval.setLocation(logicalPositionToPhysicalPoint(FloatPoint(retval.location()), FloatSize(retval.size())).toLayoutPoint());
return retval;
}
void TableCellPainter::paintBackgroundsBehindCell(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, const LayoutObject* backgroundObject, DisplayItem::Type type)
{
if (!paintInfo.shouldPaintWithinRoot(&m_layoutTableCell))
return;
if (!backgroundObject)
return;
if (m_layoutTableCell.style()->visibility() != VISIBLE)
return;
LayoutTable* tableElt = m_layoutTableCell.table();
if (!tableElt->collapseBorders() && m_layoutTableCell.style()->emptyCells() == HIDE && !m_layoutTableCell.firstChild())
return;
LayoutRect paintRect = paintBounds(paintOffset, backgroundObject != &m_layoutTableCell ? AddOffsetFromParent : DoNotAddOffsetFromParent);
// Record drawing only if the cell is painting background from containers.
Optional<LayoutObjectDrawingRecorder> recorder;
if (backgroundObject != &m_layoutTableCell) {
LayoutPoint adjustedPaintOffset = paintRect.location();
if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutTableCell, type, adjustedPaintOffset))
return;
recorder.emplace(*paintInfo.context, m_layoutTableCell, type, paintRect, adjustedPaintOffset);
} else {
ASSERT(paintRect.location() == paintOffset);
}
Color c = backgroundObject->resolveColor(CSSPropertyBackgroundColor);
const FillLayer& bgLayer = backgroundObject->style()->backgroundLayers();
if (bgLayer.hasImage() || c.alpha()) {
// We have to clip here because the background would paint
// on top of the borders otherwise. This only matters for cells and rows.
bool shouldClip = backgroundObject->hasLayer() && (backgroundObject == &m_layoutTableCell || backgroundObject == m_layoutTableCell.parent()) && tableElt->collapseBorders();
GraphicsContextStateSaver stateSaver(*paintInfo.context, shouldClip);
if (shouldClip) {
LayoutRect clipRect(paintRect.location(), m_layoutTableCell.size());
clipRect.expand(m_layoutTableCell.borderInsets());
paintInfo.context->clip(pixelSnappedIntRect(clipRect));
}
BoxPainter(m_layoutTableCell).paintFillLayers(paintInfo, c, bgLayer, paintRect, BackgroundBleedNone, SkXfermode::kSrcOver_Mode, backgroundObject);
}
}
void InlineBox::logicalRectToPhysicalRect(LayoutRect& current) const
{
if (isHorizontal() && !lineLayoutItem().hasFlippedBlocksWritingMode())
return;
if (!isHorizontal()) {
current = current.transposedRect();
}
current.setLocation(logicalPositionToPhysicalPoint(current.location(), current.size()));
return;
}
void RenderListBox::paintItemForeground(PaintInfo& paintInfo, const LayoutPoint& paintOffset, int listIndex)
{
FontCachePurgePreventer fontCachePurgePreventer;
const Vector<HTMLElement*>& listItems = toHTMLSelectElement(node())->listItems();
HTMLElement* element = listItems[listIndex];
RenderStyle* itemStyle = element->renderStyle();
if (!itemStyle)
itemStyle = style();
if (itemStyle->visibility() == HIDDEN)
return;
String itemText;
bool isOptionElement = element->hasTagName(optionTag);
if (isOptionElement)
itemText = toHTMLOptionElement(element)->textIndentedToRespectGroupLabel();
else if (element->hasTagName(optgroupTag))
itemText = static_cast<const HTMLOptGroupElement*>(element)->groupLabelText();
applyTextTransform(style(), itemText, ' ');
Color textColor = element->renderStyle() ? element->renderStyle()->visitedDependentColor(CSSPropertyColor) : style()->visitedDependentColor(CSSPropertyColor);
if (isOptionElement && toHTMLOptionElement(element)->selected()) {
if (frame()->selection()->isFocusedAndActive() && document()->focusedNode() == node())
textColor = theme()->activeListBoxSelectionForegroundColor();
// Honor the foreground color for disabled items
else if (!element->disabled())
textColor = theme()->inactiveListBoxSelectionForegroundColor();
}
ColorSpace colorSpace = itemStyle->colorSpace();
paintInfo.context->setFillColor(textColor, colorSpace);
unsigned length = itemText.length();
const UChar* string = itemText.characters();
TextRun textRun(string, length, false, 0, 0, TextRun::AllowTrailingExpansion, itemStyle->direction(), itemStyle->unicodeBidi() == Override, TextRun::NoRounding);
Font itemFont = style()->font();
LayoutRect r = itemBoundingBoxRect(paintOffset, listIndex);
r.move(itemOffsetForAlignment(textRun, itemStyle, itemFont, r));
if (element->hasTagName(optgroupTag)) {
FontDescription d = itemFont.fontDescription();
d.setWeight(d.bolderWeight());
itemFont = Font(d, itemFont.letterSpacing(), itemFont.wordSpacing());
itemFont.update(document()->styleSelector()->fontSelector());
}
// Draw the item text
paintInfo.context->drawBidiText(itemFont, textRun, r.location());
}
void RenderFlowThread::paintFlowThreadPortionInRegion(PaintInfo& paintInfo, RenderRegion* region, LayoutRect flowThreadPortionRect, LayoutRect flowThreadPortionOverflowRect, const LayoutPoint& paintOffset) const
{
GraphicsContext* context = paintInfo.context;
if (!context)
return;
// Adjust the clipping rect for the region.
// paintOffset contains the offset where the painting should occur
// adjusted with the region padding and border.
LayoutRect regionClippingRect(paintOffset + (flowThreadPortionOverflowRect.location() - flowThreadPortionRect.location()), flowThreadPortionOverflowRect.size());
PaintInfo info(paintInfo);
info.rect.intersect(pixelSnappedIntRect(regionClippingRect));
if (!info.rect.isEmpty()) {
context->save();
context->clip(regionClippingRect);
// RenderFlowThread should start painting its content in a position that is offset
// from the region rect's current position. The amount of offset is equal to the location of
// the flow thread portion in the flow thread's local coordinates.
IntPoint renderFlowThreadOffset;
if (style()->isFlippedBlocksWritingMode()) {
LayoutRect flippedFlowThreadPortionRect(flowThreadPortionRect);
flipForWritingMode(flippedFlowThreadPortionRect);
renderFlowThreadOffset = roundedIntPoint(paintOffset - flippedFlowThreadPortionRect.location());
} else
renderFlowThreadOffset = roundedIntPoint(paintOffset - flowThreadPortionRect.location());
context->translate(renderFlowThreadOffset.x(), renderFlowThreadOffset.y());
info.rect.moveBy(-renderFlowThreadOffset);
layer()->paint(context, info.rect, 0, 0, region, RenderLayer::PaintLayerTemporaryClipRects);
context->restore();
}
}
void RenderRegion::computeOverflowFromFlowThread()
{
ASSERT(isValid());
LayoutRect layoutRect = overflowRectForFlowThreadPortion(flowThreadPortionRect(), isFirstRegion(), isLastRegion(), LayoutOverflow);
layoutRect.setLocation(contentBoxRect().location() + (layoutRect.location() - m_flowThreadPortionRect.location()));
// FIXME: Correctly adjust the layout overflow for writing modes.
addLayoutOverflow(layoutRect);
updateLayerTransform();
updateScrollInfoAfterLayout();
}
LayoutPoint RenderRegion::flowThreadPortionLocation() const
{
LayoutPoint portionLocation;
LayoutRect portionRect = flowThreadPortionRect();
if (flowThread()->style().isFlippedBlocksWritingMode()) {
LayoutRect flippedFlowThreadPortionRect(portionRect);
flowThread()->flipForWritingMode(flippedFlowThreadPortionRect);
portionLocation = flippedFlowThreadPortionRect.location();
} else
portionLocation = portionRect.location();
return portionLocation;
}
int VisiblePosition::lineDirectionPointForBlockDirectionNavigation() const
{
RenderObject* renderer;
LayoutRect localRect = localCaretRect(renderer);
if (localRect.isEmpty() || !renderer)
return 0;
// This ignores transforms on purpose, for now. Vertical navigation is done
// without consulting transforms, so that 'up' in transformed text is 'up'
// relative to the text, not absolute 'up'.
FloatPoint caretPoint = renderer->localToAbsolute(localRect.location());
RenderObject* containingBlock = renderer->containingBlock();
if (!containingBlock)
containingBlock = renderer; // Just use ourselves to determine the writing mode if we have no containing block.
return containingBlock->isHorizontalWritingMode() ? caretPoint.x() : caretPoint.y();
}
void RenderSnapshottedPlugIn::paintReplacedSnapshotWithLabel(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (contentBoxRect().isEmpty())
return;
if (!plugInImageElement()->hovered() && m_showReason == UserMousedOver)
return;
m_showedLabelOnce = true;
LayoutRect rect = contentBoxRect();
LayoutRect labelRect = tryToFitStartLabel(LabelSizeLarge, rect);
LabelSize size = NoLabel;
if (!labelRect.isEmpty())
size = LabelSizeLarge;
else {
labelRect = tryToFitStartLabel(LabelSizeSmall, rect);
if (!labelRect.isEmpty())
size = LabelSizeSmall;
else
return;
}
Image* labelImage = startLabelImage(size);
if (!labelImage)
return;
RefPtr<Image> snapshotImage = m_snapshotResource->image();
if (!snapshotImage || snapshotImage->isNull())
return;
#if ENABLE(FILTERS)
RefPtr<Image> blurredSnapshotImage = m_snapshotResourceForLabel->image();
if (!blurredSnapshotImage || blurredSnapshotImage->isNull()) {
blurredSnapshotImage = snapshottedPluginImageForLabelDisplay(snapshotImage, labelRect);
m_snapshotResourceForLabel->setCachedImage(new CachedImage(blurredSnapshotImage.get()));
}
snapshotImage = blurredSnapshotImage;
#endif
paintSnapshot(snapshotImage.get(), paintInfo, paintOffset);
// Remember that the labelRect includes the label inset, so we need to adjust for it.
paintInfo.context->drawImage(labelImage, ColorSpaceDeviceRGB,
IntRect(roundedIntPoint(paintOffset + labelRect.location() - IntSize(startLabelInset, startLabelInset)),
roundedIntSize(labelRect.size() + IntSize(2 * startLabelInset, 2 * startLabelInset))),
labelImage->rect());
}
void RenderFlowThread::paintFlowThreadPortionInRegion(PaintInfo& paintInfo, RenderRegion* region, LayoutRect flowThreadPortionRect, LayoutRect flowThreadPortionOverflowRect, const LayoutPoint& paintOffset) const
{
GraphicsContext* context = paintInfo.context;
if (!context)
return;
// RenderFlowThread should start painting its content in a position that is offset
// from the region rect's current position. The amount of offset is equal to the location of
// the flow thread portion in the flow thread's local coordinates.
// Note that we have to pixel snap the location at which we're going to paint, since this is necessary
// to minimize the amount of incorrect snapping that would otherwise occur.
// If we tried to paint by applying a non-integral translation, then all the
// layout code that attempted to pixel snap would be incorrect.
IntPoint adjustedPaintOffset;
LayoutPoint portionLocation;
if (style()->isFlippedBlocksWritingMode()) {
LayoutRect flippedFlowThreadPortionRect(flowThreadPortionRect);
flipForWritingMode(flippedFlowThreadPortionRect);
portionLocation = flippedFlowThreadPortionRect.location();
} else
portionLocation = flowThreadPortionRect.location();
adjustedPaintOffset = roundedIntPoint(paintOffset - portionLocation);
// The clipping rect for the region is set up by assuming the flowThreadPortionRect is going to paint offset from adjustedPaintOffset.
// Remember that we pixel snapped and moved the paintOffset and stored the snapped result in adjustedPaintOffset. Now we add back in
// the flowThreadPortionRect's location to get the spot where we expect the portion to actually paint. This can be non-integral and
// that's ok. We then pixel snap the resulting clipping rect to account for snapping that will occur when the flow thread paints.
IntRect regionClippingRect = pixelSnappedIntRect(computeRegionClippingRect(adjustedPaintOffset + portionLocation, flowThreadPortionRect, flowThreadPortionOverflowRect));
PaintInfo info(paintInfo);
info.rect.intersect(regionClippingRect);
if (!info.rect.isEmpty()) {
context->save();
context->clip(regionClippingRect);
context->translate(adjustedPaintOffset.x(), adjustedPaintOffset.y());
info.rect.moveBy(-adjustedPaintOffset);
layer()->paint(context, info.rect, 0, 0, region, RenderLayer::PaintLayerTemporaryClipRects);
context->restore();
}
}
FloatPoint ViewportAnchor::getInnerOrigin(const FloatSize& innerSize) const
{
if (!m_anchorNode || !m_anchorNode->inDocument())
return m_pinchViewportInDocument;
const LayoutRect currentNodeBounds = m_anchorNode->boundingBox();
if (m_anchorNodeBounds == currentNodeBounds)
return m_pinchViewportInDocument;
// Compute the new anchor point relative to the node position
FloatSize anchorOffsetFromNode(currentNodeBounds.size());
anchorOffsetFromNode.scale(m_anchorInNodeCoords.width(), m_anchorInNodeCoords.height());
FloatPoint anchorPoint = FloatPoint(currentNodeBounds.location()) + anchorOffsetFromNode;
// Compute the new origin point relative to the new anchor point
FloatSize anchorOffsetFromOrigin = innerSize;
anchorOffsetFromOrigin.scale(m_anchorInInnerViewCoords.width(), m_anchorInInnerViewCoords.height());
return anchorPoint - anchorOffsetFromOrigin;
}
IntPoint ViewportAnchor::computeOrigin(const IntSize& currentViewSize) const
{
if (!m_anchorNode || !m_anchorNode->inDocument())
return m_viewRect.location();
const LayoutRect currentNodeBounds = m_anchorNode->boundingBox();
if (m_anchorNodeBounds == currentNodeBounds)
return m_viewRect.location();
// Compute the new anchor point relative to the node position
FloatSize anchorOffsetFromNode = currentNodeBounds.size();
anchorOffsetFromNode.scale(m_anchorInNodeCoords.width(), m_anchorInNodeCoords.height());
FloatPoint anchorPoint = currentNodeBounds.location() + anchorOffsetFromNode;
// Compute the new origin point relative to the new anchor point
FloatSize anchorOffsetFromOrigin = currentViewSize;
anchorOffsetFromOrigin.scale(m_anchorInViewCoords.width(), m_anchorInViewCoords.height());
return flooredIntPoint(anchorPoint - anchorOffsetFromOrigin);
}
void InlineFlowBoxPainter::paintFillLayer(const PaintInfo& paintInfo, const Color& c, const FillLayer& fillLayer, const LayoutRect& rect, SkXfermode::Mode op)
{
StyleImage* img = fillLayer.image();
bool hasFillImage = img && img->canRender(m_inlineFlowBox.layoutObject(), m_inlineFlowBox.layoutObject().style()->effectiveZoom());
if ((!hasFillImage && !m_inlineFlowBox.layoutObject().style()->hasBorderRadius()) || (!m_inlineFlowBox.prevLineBox() && !m_inlineFlowBox.nextLineBox()) || !m_inlineFlowBox.parent()) {
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else if (m_inlineFlowBox.layoutObject().style()->boxDecorationBreak() == DCLONE) {
GraphicsContextStateSaver stateSaver(*paintInfo.context);
paintInfo.context->clip(LayoutRect(rect.x(), rect.y(), m_inlineFlowBox.width(), m_inlineFlowBox.height()));
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else {
// We have a fill image that spans multiple lines.
// FIXME: frameSize ought to be the same as rect.size().
LayoutSize frameSize(m_inlineFlowBox.width().toLayoutUnit(), m_inlineFlowBox.height().toLayoutUnit());
LayoutRect imageStripPaintRect = paintRectForImageStrip(rect.location(), frameSize, m_inlineFlowBox.layoutObject().style()->direction());
GraphicsContextStateSaver stateSaver(*paintInfo.context);
paintInfo.context->clip(LayoutRect(rect.x(), rect.y(), m_inlineFlowBox.width(), m_inlineFlowBox.height()));
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, imageStripPaintRect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
}
}
void RenderView::mapRectToPaintInvalidationBacking(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect& rect, ViewportConstrainedPosition viewportConstraint, const PaintInvalidationState* state) const
{
if (document().printing())
return;
if (style()->slowIsFlippedBlocksWritingMode()) {
// We have to flip by hand since the view's logical height has not been determined. We
// can use the viewport width and height.
if (style()->isHorizontalWritingMode())
rect.setY(viewHeight() - rect.maxY());
else
rect.setX(viewWidth() - rect.maxX());
}
adjustViewportConstrainedOffset(rect, viewportConstraint);
// Apply our transform if we have one (because of full page zooming).
if (!paintInvalidationContainer && layer() && layer()->transform())
rect = layer()->transform()->mapRect(rect);
ASSERT(paintInvalidationContainer);
if (paintInvalidationContainer == this)
return;
Element* owner = document().ownerElement();
if (!owner)
return;
if (RenderBox* obj = owner->renderBox()) {
// Intersect the viewport with the paint invalidation rect.
LayoutRect viewRectangle = viewRect();
rect.intersect(viewRectangle);
// Adjust for scroll offset of the view.
rect.moveBy(-viewRectangle.location());
// Adjust for frame border.
rect.moveBy(obj->contentBoxRect().location());
obj->mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, 0);
}
}
LayoutRect AccessibilityListBoxOption::elementRect() const
{
LayoutRect rect;
if (!m_optionElement)
return rect;
HTMLSelectElement* listBoxParentNode = listBoxOptionParentNode();
if (!listBoxParentNode)
return rect;
RenderObject* listBoxRenderer = listBoxParentNode->renderer();
if (!listBoxRenderer)
return rect;
LayoutRect parentRect = listBoxRenderer->document()->axObjectCache()->getOrCreate(listBoxRenderer)->boundingBoxRect();
int index = listBoxOptionIndex();
if (index != -1)
rect = toRenderListBox(listBoxRenderer)->itemBoundingBoxRect(parentRect.location(), index);
return rect;
}
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();
}
void RenderScrollbarPart::paintIntoRect(GraphicsContext* graphicsContext, const LayoutPoint& paintOffset, const LayoutRect& rect)
{
// Make sure our dimensions match the rect.
setLocation(rect.location() - toSize(paintOffset));
setWidth(rect.width());
setHeight(rect.height());
if (graphicsContext->paintingDisabled())
return;
// Now do the paint.
PaintInfo paintInfo(graphicsContext, rect, PaintPhaseBlockBackground, false, 0, 0, 0);
paint(paintInfo, paintOffset);
paintInfo.phase = PaintPhaseChildBlockBackgrounds;
paint(paintInfo, paintOffset);
paintInfo.phase = PaintPhaseFloat;
paint(paintInfo, paintOffset);
paintInfo.phase = PaintPhaseForeground;
paint(paintInfo, paintOffset);
paintInfo.phase = PaintPhaseOutline;
paint(paintInfo, paintOffset);
}