VisiblePosition RenderReplaced::positionForPoint(const IntPoint& point)
{
InlineBox* box = inlineBoxWrapper();
if (!box)
return createVisiblePosition(0, DOWNSTREAM);
// FIXME: This code is buggy if the replaced element is relative positioned.
RootInlineBox* root = box->root();
int top = root->selectionTop();
int bottom = root->selectionBottom();
int blockDirectionPosition = box->isHorizontal() ? point.y() + y() : point.x() + x();
int lineDirectionPosition = box->isHorizontal() ? point.x() + x() : point.y() + y();
if (blockDirectionPosition < top)
return createVisiblePosition(caretMinOffset(), DOWNSTREAM); // coordinates are above
if (blockDirectionPosition >= bottom)
return createVisiblePosition(caretMaxOffset(), DOWNSTREAM); // coordinates are below
if (node()) {
if (lineDirectionPosition <= box->logicalLeft() + (box->logicalWidth() / 2))
return createVisiblePosition(0, DOWNSTREAM);
return createVisiblePosition(1, DOWNSTREAM);
}
return RenderBox::positionForPoint(point);
}
// FIXME: This doesn't behave correctly for floating or positioned images, but WebCore doesn't handle those well
// during selection creation yet anyway.
// FIXME: We can't tell whether or not we contain the start or end of the selected Range using only the offsets
// of the start and end, we need to know the whole Position.
void RenderImage::collectSelectionRects(Vector<SelectionRect>& rects, unsigned, unsigned)
{
RenderBlock* containingBlock = this->containingBlock();
IntRect imageRect;
// FIXME: It doesn't make sense to package line bounds into SelectionRects. We should find
// the right and left extent of the selection once for the entire selected Range, perhaps
// using the Range's common ancestor.
IntRect lineExtentRect;
bool isFirstOnLine = false;
bool isLastOnLine = false;
InlineBox* inlineBox = inlineBoxWrapper();
if (!inlineBox) {
// This is a block image.
imageRect = IntRect(0, 0, width(), height());
isFirstOnLine = true;
isLastOnLine = true;
lineExtentRect = imageRect;
if (containingBlock->isHorizontalWritingMode()) {
lineExtentRect.setX(containingBlock->x());
lineExtentRect.setWidth(containingBlock->width());
} else {
lineExtentRect.setY(containingBlock->y());
lineExtentRect.setHeight(containingBlock->height());
}
} else {
LayoutUnit selectionTop = !containingBlock->style().isFlippedBlocksWritingMode() ? inlineBox->root().selectionTop() - logicalTop() : logicalBottom() - inlineBox->root().selectionBottom();
imageRect = IntRect(0, selectionTop, logicalWidth(), inlineBox->root().selectionHeight());
isFirstOnLine = !inlineBox->previousOnLineExists();
isLastOnLine = !inlineBox->nextOnLineExists();
LogicalSelectionOffsetCaches cache(*containingBlock);
LayoutUnit leftOffset = containingBlock->logicalLeftSelectionOffset(*containingBlock, inlineBox->logicalTop(), cache);
LayoutUnit rightOffset = containingBlock->logicalRightSelectionOffset(*containingBlock, inlineBox->logicalTop(), cache);
lineExtentRect = IntRect(leftOffset - logicalLeft(), imageRect.y(), rightOffset - leftOffset, imageRect.height());
if (!inlineBox->isHorizontal()) {
imageRect = imageRect.transposedRect();
lineExtentRect = lineExtentRect.transposedRect();
}
}
bool isFixed = false;
IntRect absoluteBounds = localToAbsoluteQuad(FloatRect(imageRect), UseTransforms, &isFixed).enclosingBoundingBox();
IntRect lineExtentBounds = localToAbsoluteQuad(FloatRect(lineExtentRect)).enclosingBoundingBox();
if (!containingBlock->isHorizontalWritingMode())
lineExtentBounds = lineExtentBounds.transposedRect();
// FIXME: We should consider either making SelectionRect a struct or better organize its optional fields into
// an auxiliary struct to simplify its initialization.
rects.append(SelectionRect(absoluteBounds, containingBlock->style().direction(), lineExtentBounds.x(), lineExtentBounds.maxX(), lineExtentBounds.maxY(), 0, false /* line break */, isFirstOnLine, isLastOnLine, false /* contains start */, false /* contains end */, containingBlock->style().isHorizontalWritingMode(), isFixed, false /* ruby text */, view().pageNumberForBlockProgressionOffset(absoluteBounds.x())));
}
