void RenderLayerModelObject::createLayer(LayerType type)
{
ASSERT(!m_layer);
m_layer = adoptPtr(new RenderLayer(this, type));
setHasLayer(true);
m_layer->insertOnlyThisLayer();
}
RenderView::RenderView(Node* node, FrameView* view)
: RenderBlock(node)
, m_frameView(view)
, m_selectionStart(0)
, m_selectionEnd(0)
, m_selectionStartPos(-1)
, m_selectionEndPos(-1)
, m_printImages(true)
, m_maximalOutlineSize(0)
, m_layoutState(0)
, m_layoutStateDisableCount(0)
{
// Clear our anonymous bit, set because RenderObject assumes
// any renderer with document as the node is anonymous.
setIsAnonymous(false);
// init RenderObject attributes
setInline(false);
m_minPrefWidth = 0;
m_maxPrefWidth = 0;
setPrefWidthsDirty(true, false);
setPositioned(true); // to 0,0 :)
// Create a new root layer for our layer hierarchy.
m_layer = new (node->document()->renderArena()) RenderLayer(this);
setHasLayer(true);
}
void RenderLayerModelObject::createLayer()
{
ASSERT(!m_layer);
m_layer = std::make_unique<RenderLayer>(*this);
setHasLayer(true);
m_layer->insertOnlyThisLayer();
}
void RenderLayerModelObject::ensureLayer()
{
if (m_layer)
return;
m_layer = new (renderArena()) RenderLayer(this);
setHasLayer(true);
m_layer->insertOnlyThisLayer();
}
void RenderWidget::destroy()
{
// We can't call the base class's destroy because we don't
// want to unconditionally delete ourselves (we're ref-counted).
// So the code below includes copied and pasted contents of
// both RenderBox::destroy() and RenderObject::destroy().
// Fix originally made for <rdar://problem/4228818>.
animation()->cancelAnimations(this);
if (RenderView* v = view())
v->removeWidget(this);
if (AXObjectCache::accessibilityEnabled()) {
document()->axObjectCache()->childrenChanged(this->parent());
document()->axObjectCache()->remove(this);
}
remove();
if (m_widget) {
if (m_frameView)
m_frameView->removeChild(m_widget.get());
widgetRendererMap().remove(m_widget.get());
}
// removes from override size map
if (hasOverrideSize())
setOverrideSize(-1);
if (style() && (style()->height().isPercent() || style()->minHeight().isPercent() || style()->maxHeight().isPercent()))
RenderBlock::removePercentHeightDescendant(this);
if (hasLayer()) {
layer()->clearClipRects();
setHasLayer(false);
destroyLayer();
}
// Grab the arena from node()->document()->renderArena() before clearing the node pointer.
// Clear the node before deref-ing, as this may be deleted when deref is called.
RenderArena* arena = renderArena();
setNode(0);
deref(arena);
}
void RenderLayerModelObject::destroyLayer()
{
setHasLayer(false);
m_layer = nullptr;
}