IntRect CaretBase::absoluteBoundsForLocalRect(Node* node, const LayoutRect& rect) const
{
LayoutBlock* caretPainter = caretLayoutObject(node);
if (!caretPainter)
return IntRect();
LayoutRect localRect(rect);
caretPainter->flipForWritingMode(localRect);
return caretPainter->localToAbsoluteQuad(FloatRect(localRect)).enclosingBoundingBox();
}
// TODO(yoichio): |node| is FrameSelection::m_previousCaretNode and this is bad
// design. We should use only previous layoutObject or Rectangle to invalidate
// old caret.
void CaretBase::invalidateLocalCaretRect(Node* node, const LayoutRect& rect) {
LayoutBlock* caretLayoutBlock = caretLayoutObject(node);
if (!caretLayoutBlock)
return;
// FIXME: Need to over-paint 1 pixel to workaround some rounding problems.
// https://bugs.webkit.org/show_bug.cgi?id=108283
LayoutRect inflatedRect = rect;
inflatedRect.inflate(LayoutUnit(1));
// FIXME: We should not allow paint invalidation out of paint invalidation
// state. crbug.com/457415
DisablePaintInvalidationStateAsserts disabler;
m_visualRect =
node->layoutObject()->invalidatePaintRectangle(inflatedRect, this);
}
void CaretBase::invalidateLocalCaretRect(Node* node, const LayoutRect& rect)
{
LayoutBlock* caretPainter = caretLayoutObject(node);
if (!caretPainter)
return;
// FIXME: Need to over-paint 1 pixel to workaround some rounding problems.
// https://bugs.webkit.org/show_bug.cgi?id=108283
LayoutRect inflatedRect = rect;
inflatedRect.inflate(1);
// FIXME: We should use mapLocalToContainer() since we know we're not un-rooted.
mapCaretRectToCaretPainter(node->layoutObject(), caretPainter, inflatedRect);
// FIXME: We should not allow paint invalidation out of paint invalidation state. crbug.com/457415
DisablePaintInvalidationStateAsserts disabler;
caretPainter->invalidatePaintRectangle(inflatedRect);
}
void CaretBase::paintCaret(Node* node,
GraphicsContext& context,
const LayoutPoint& paintOffset,
DisplayItem::Type displayItemType) const {
if (DrawingRecorder::useCachedDrawingIfPossible(context, *this,
displayItemType))
return;
LayoutRect drawingRect = localCaretRectWithoutUpdate();
if (LayoutBlock* layoutObject = caretLayoutObject(node))
layoutObject->flipForWritingMode(drawingRect);
drawingRect.moveBy(paintOffset);
const Color caretColor = node->layoutObject()->resolveColor(CSSPropertyColor);
IntRect paintRect = pixelSnappedIntRect(drawingRect);
DrawingRecorder drawingRecorder(context, *this, DisplayItem::kCaret,
paintRect);
context.fillRect(paintRect, caretColor);
}
void CaretBase::updateCaretRect(const PositionWithAffinity& caretPosition) {
m_caretLocalRect = LayoutRect();
if (caretPosition.isNull())
return;
DCHECK(caretPosition.anchorNode()->layoutObject());
// First compute a rect local to the layoutObject at the selection start.
LayoutObject* layoutObject;
m_caretLocalRect = localCaretRectOfPosition(caretPosition, layoutObject);
// Get the layoutObject that will be responsible for painting the caret
// (which is either the layoutObject we just found, or one of its containers).
LayoutBlockItem caretPainterItem =
LayoutBlockItem(caretLayoutObject(caretPosition.anchorNode()));
mapCaretRectToCaretPainter(LayoutItem(layoutObject), caretPainterItem,
m_caretLocalRect);
}
bool CaretBase::updateCaretRect(const PositionWithAffinity& caretPosition)
{
m_caretLocalRect = LayoutRect();
if (caretPosition.position().isNull())
return false;
ASSERT(caretPosition.position().anchorNode()->layoutObject());
// First compute a rect local to the layoutObject at the selection start.
LayoutObject* layoutObject;
m_caretLocalRect = localCaretRectOfPosition(caretPosition, layoutObject);
// Get the layoutObject that will be responsible for painting the caret
// (which is either the layoutObject we just found, or one of its containers).
LayoutBlock* caretPainter = caretLayoutObject(caretPosition.position().anchorNode());
mapCaretRectToCaretPainter(layoutObject, caretPainter, m_caretLocalRect);
return true;
}
void CaretBase::paintCaret(Node* node, GraphicsContext* context, const LayoutPoint& paintOffset) const
{
if (m_caretVisibility == Hidden)
return;
LayoutRect drawingRect = localCaretRectWithoutUpdate();
if (LayoutBlock* layoutObject = caretLayoutObject(node))
layoutObject->flipForWritingMode(drawingRect);
drawingRect.moveBy(roundedIntPoint(paintOffset));
Color caretColor = Color::black;
Element* element;
if (node->isElementNode())
element = toElement(node);
else
element = node->parentElement();
if (element && element->layoutObject())
caretColor = element->layoutObject()->resolveColor(CSSPropertyColor);
context->fillRect(FloatRect(drawingRect), caretColor);
}