void HTMLBodyElement::setScrollTop(int scrollTop)
{
Document& document = this->document();
document.updateLayoutIgnorePendingStylesheets();
if (RuntimeEnabledFeatures::scrollTopLeftInteropEnabled()) {
RenderBox* render = renderBox();
if (!render)
return;
if (render->hasOverflowClip()) {
// FIXME: Investigate how are other browsers casting to int (rounding, ceiling, ...).
render->setScrollTop(static_cast<int>(scrollTop * render->style()->effectiveZoom()));
return;
}
if (!document.inQuirksMode())
return;
}
LocalFrame* frame = document.frame();
if (!frame)
return;
FrameView* view = frame->view();
if (!view)
return;
view->setScrollPosition(IntPoint(view->scrollX(), static_cast<int>(scrollTop * frame->pageZoomFactor())));
}
int HTMLBodyElement::scrollTop()
{
Document& document = this->document();
document.updateLayoutIgnorePendingStylesheets();
if (RuntimeEnabledFeatures::scrollTopLeftInteropEnabled()) {
RenderBox* render = renderBox();
if (!render)
return 0;
if (render->hasOverflowClip())
return adjustForAbsoluteZoom(render->scrollTop(), render);
if (!document.inQuirksMode())
return 0;
}
FrameView* view = document.view();
return view ? adjustForZoom(view->scrollY(), &document) : 0;
}
double HTMLBodyElement::scrollTop()
{
Document& document = this->document();
document.updateLayoutIgnorePendingStylesheets();
if (RuntimeEnabledFeatures::scrollTopLeftInteropEnabled()) {
RenderBox* render = renderBox();
if (!render)
return 0;
if (render->hasOverflowClip())
return adjustLayoutUnitForAbsoluteZoom(render->scrollTop(), *render);
if (!document.inQuirksMode())
return 0;
}
if (FrameView* view = document.view())
return adjustScrollForAbsoluteZoom(view->scrollY(), document.frame()->pageZoomFactor());
return 0;
}
void RenderListItem::positionListMarker()
{
if (m_marker && m_marker->parent()->isBox() && !m_marker->isInside() && m_marker->inlineBoxWrapper()) {
LayoutUnit markerOldLogicalLeft = m_marker->logicalLeft();
LayoutUnit blockOffset = 0;
LayoutUnit lineOffset = 0;
for (RenderBox* o = m_marker->parentBox(); o != this; o = o->parentBox()) {
blockOffset += o->logicalTop();
lineOffset += o->logicalLeft();
}
bool adjustOverflow = false;
LayoutUnit markerLogicalLeft;
RootInlineBox& root = m_marker->inlineBoxWrapper()->root();
bool hitSelfPaintingLayer = false;
LayoutUnit lineTop = root.lineTop();
LayoutUnit lineBottom = root.lineBottom();
// FIXME: Need to account for relative positioning in the layout overflow.
if (style()->isLeftToRightDirection()) {
LayoutUnit leftLineOffset = logicalLeftOffsetForLine(blockOffset, logicalLeftOffsetForLine(blockOffset, false), false);
markerLogicalLeft = leftLineOffset - lineOffset - paddingStart() - borderStart() + m_marker->marginStart();
m_marker->inlineBoxWrapper()->adjustLineDirectionPosition((markerLogicalLeft - markerOldLogicalLeft).toFloat());
for (InlineFlowBox* box = m_marker->inlineBoxWrapper()->parent(); box; box = box->parent()) {
LayoutRect newLogicalVisualOverflowRect = box->logicalVisualOverflowRect(lineTop, lineBottom);
LayoutRect newLogicalLayoutOverflowRect = box->logicalLayoutOverflowRect(lineTop, lineBottom);
if (markerLogicalLeft < newLogicalVisualOverflowRect.x() && !hitSelfPaintingLayer) {
newLogicalVisualOverflowRect.setWidth(newLogicalVisualOverflowRect.maxX() - markerLogicalLeft);
newLogicalVisualOverflowRect.setX(markerLogicalLeft);
if (box == root)
adjustOverflow = true;
}
if (markerLogicalLeft < newLogicalLayoutOverflowRect.x()) {
newLogicalLayoutOverflowRect.setWidth(newLogicalLayoutOverflowRect.maxX() - markerLogicalLeft);
newLogicalLayoutOverflowRect.setX(markerLogicalLeft);
if (box == root)
adjustOverflow = true;
}
box->setOverflowFromLogicalRects(newLogicalLayoutOverflowRect, newLogicalVisualOverflowRect, lineTop, lineBottom);
if (box->boxModelObject()->hasSelfPaintingLayer())
hitSelfPaintingLayer = true;
}
} else {
LayoutUnit rightLineOffset = logicalRightOffsetForLine(blockOffset, logicalRightOffsetForLine(blockOffset, false), false);
markerLogicalLeft = rightLineOffset - lineOffset + paddingStart() + borderStart() + m_marker->marginEnd();
m_marker->inlineBoxWrapper()->adjustLineDirectionPosition((markerLogicalLeft - markerOldLogicalLeft).toFloat());
for (InlineFlowBox* box = m_marker->inlineBoxWrapper()->parent(); box; box = box->parent()) {
LayoutRect newLogicalVisualOverflowRect = box->logicalVisualOverflowRect(lineTop, lineBottom);
LayoutRect newLogicalLayoutOverflowRect = box->logicalLayoutOverflowRect(lineTop, lineBottom);
if (markerLogicalLeft + m_marker->logicalWidth() > newLogicalVisualOverflowRect.maxX() && !hitSelfPaintingLayer) {
newLogicalVisualOverflowRect.setWidth(markerLogicalLeft + m_marker->logicalWidth() - newLogicalVisualOverflowRect.x());
if (box == root)
adjustOverflow = true;
}
if (markerLogicalLeft + m_marker->logicalWidth() > newLogicalLayoutOverflowRect.maxX()) {
newLogicalLayoutOverflowRect.setWidth(markerLogicalLeft + m_marker->logicalWidth() - newLogicalLayoutOverflowRect.x());
if (box == root)
adjustOverflow = true;
}
box->setOverflowFromLogicalRects(newLogicalLayoutOverflowRect, newLogicalVisualOverflowRect, lineTop, lineBottom);
if (box->boxModelObject()->hasSelfPaintingLayer())
hitSelfPaintingLayer = true;
}
}
if (adjustOverflow) {
LayoutRect markerRect(LayoutPoint(markerLogicalLeft + lineOffset, blockOffset), m_marker->size());
if (!style()->isHorizontalWritingMode())
markerRect = markerRect.transposedRect();
RenderBox* o = m_marker;
bool propagateVisualOverflow = true;
bool propagateLayoutOverflow = true;
do {
o = o->parentBox();
if (o->isRenderBlock()) {
if (propagateVisualOverflow)
toRenderBlock(o)->addContentsVisualOverflow(markerRect);
if (propagateLayoutOverflow)
toRenderBlock(o)->addLayoutOverflow(markerRect);
}
if (o->hasOverflowClip()) {
propagateLayoutOverflow = false;
propagateVisualOverflow = false;
}
if (o->hasSelfPaintingLayer())
propagateVisualOverflow = false;
markerRect.moveBy(-o->location());
} while (o != this && propagateVisualOverflow && propagateLayoutOverflow);
}
}
}
void RenderListItem::positionListMarker()
{
if (!m_marker || !m_marker->parent() || !m_marker->parent()->isBox())
return;
if (m_marker->isInside() || !m_marker->inlineBoxWrapper())
return;
LayoutUnit markerOldLogicalLeft = m_marker->logicalLeft();
LayoutUnit blockOffset = 0;
LayoutUnit lineOffset = 0;
for (RenderBox* o = m_marker->parentBox(); o != this; o = o->parentBox()) {
blockOffset += o->logicalTop();
lineOffset += o->logicalLeft();
}
bool adjustOverflow = false;
LayoutUnit markerLogicalLeft;
bool hitSelfPaintingLayer = false;
const RootInlineBox& rootBox = m_marker->inlineBoxWrapper()->root();
LayoutUnit lineTop = rootBox.lineTop();
LayoutUnit lineBottom = rootBox.lineBottom();
// FIXME: Need to account for relative positioning in the layout overflow.
if (style().isLeftToRightDirection()) {
markerLogicalLeft = m_marker->lineOffsetForListItem() - lineOffset - paddingStart() - borderStart() + m_marker->marginStart();
m_marker->inlineBoxWrapper()->adjustLineDirectionPosition(markerLogicalLeft - markerOldLogicalLeft);
for (InlineFlowBox* box = m_marker->inlineBoxWrapper()->parent(); box; box = box->parent()) {
LayoutRect newLogicalVisualOverflowRect = box->logicalVisualOverflowRect(lineTop, lineBottom);
LayoutRect newLogicalLayoutOverflowRect = box->logicalLayoutOverflowRect(lineTop, lineBottom);
if (markerLogicalLeft < newLogicalVisualOverflowRect.x() && !hitSelfPaintingLayer) {
newLogicalVisualOverflowRect.setWidth(newLogicalVisualOverflowRect.maxX() - markerLogicalLeft);
newLogicalVisualOverflowRect.setX(markerLogicalLeft);
if (box == &rootBox)
adjustOverflow = true;
}
if (markerLogicalLeft < newLogicalLayoutOverflowRect.x()) {
newLogicalLayoutOverflowRect.setWidth(newLogicalLayoutOverflowRect.maxX() - markerLogicalLeft);
newLogicalLayoutOverflowRect.setX(markerLogicalLeft);
if (box == &rootBox)
adjustOverflow = true;
}
box->setOverflowFromLogicalRects(newLogicalLayoutOverflowRect, newLogicalVisualOverflowRect, lineTop, lineBottom);
if (box->renderer().hasSelfPaintingLayer())
hitSelfPaintingLayer = true;
}
} else {
markerLogicalLeft = m_marker->lineOffsetForListItem() - lineOffset + paddingStart() + borderStart() + m_marker->marginEnd();
m_marker->inlineBoxWrapper()->adjustLineDirectionPosition(markerLogicalLeft - markerOldLogicalLeft);
for (InlineFlowBox* box = m_marker->inlineBoxWrapper()->parent(); box; box = box->parent()) {
LayoutRect newLogicalVisualOverflowRect = box->logicalVisualOverflowRect(lineTop, lineBottom);
LayoutRect newLogicalLayoutOverflowRect = box->logicalLayoutOverflowRect(lineTop, lineBottom);
if (markerLogicalLeft + m_marker->logicalWidth() > newLogicalVisualOverflowRect.maxX() && !hitSelfPaintingLayer) {
newLogicalVisualOverflowRect.setWidth(markerLogicalLeft + m_marker->logicalWidth() - newLogicalVisualOverflowRect.x());
if (box == &rootBox)
adjustOverflow = true;
}
if (markerLogicalLeft + m_marker->logicalWidth() > newLogicalLayoutOverflowRect.maxX()) {
newLogicalLayoutOverflowRect.setWidth(markerLogicalLeft + m_marker->logicalWidth() - newLogicalLayoutOverflowRect.x());
if (box == &rootBox)
adjustOverflow = true;
}
box->setOverflowFromLogicalRects(newLogicalLayoutOverflowRect, newLogicalVisualOverflowRect, lineTop, lineBottom);
if (box->renderer().hasSelfPaintingLayer())
hitSelfPaintingLayer = true;
}
}
if (adjustOverflow) {
LayoutRect markerRect(markerLogicalLeft + lineOffset, blockOffset, m_marker->width(), m_marker->height());
if (!style().isHorizontalWritingMode())
markerRect = markerRect.transposedRect();
RenderBox* o = m_marker;
bool propagateVisualOverflow = true;
bool propagateLayoutOverflow = true;
do {
o = o->parentBox();
if (o->hasOverflowClip())
propagateVisualOverflow = false;
if (is<RenderBlock>(*o)) {
if (propagateVisualOverflow)
downcast<RenderBlock>(*o).addVisualOverflow(markerRect);
if (propagateLayoutOverflow)
downcast<RenderBlock>(*o).addLayoutOverflow(markerRect);
}
if (o->hasOverflowClip())
propagateLayoutOverflow = false;
if (o->hasSelfPaintingLayer())
propagateVisualOverflow = false;
markerRect.moveBy(-o->location());
} while (o != this && propagateVisualOverflow && propagateLayoutOverflow);
}
}