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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsIContentInlines_h
#define nsIContentInlines_h
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsContentUtils.h"
#include "mozilla/dom/Element.h"
inline bool
nsIContent::IsInHTMLDocument() const
{
return OwnerDoc()->IsHTMLDocument();
}
inline bool
nsIContent::IsInChromeDocument() const
{
return nsContentUtils::IsChromeDoc(OwnerDoc());
}
inline mozilla::dom::ShadowRoot* nsIContent::GetShadowRoot() const
{
if (!IsElement()) {
return nullptr;
}
return AsElement()->FastGetShadowRoot();
}
template<nsIContent::FlattenedParentType Type>
static inline nsINode*
GetFlattenedTreeParentNode(const nsINode* aNode)
{
nsINode* parent = aNode->GetParentNode();
// Try to short-circuit past the complicated and not-exactly-fast logic for
// computing the flattened parent.
//
// There are four cases where we need might something other than parentNode:
// (1) The node is an explicit child of an XBL-bound element, re-bound
// to an XBL insertion point.
// (2) The node is a top-level element in a shadow tree, whose flattened
// parent is the host element (as opposed to the actual parent which
// is the shadow root).
// (3) The node is an explicit child of an element with a shadow root,
// re-bound to an insertion point.
// (4) We want the flattened parent for style, and the node is the root
// of a native anonymous content subtree parented to the document's
// root element.
bool needSlowCall = aNode->HasFlag(NODE_MAY_BE_IN_BINDING_MNGR) ||
aNode->IsInShadowTree() ||
(parent &&
parent->IsContent() &&
parent->AsContent()->GetShadowRoot()) ||
(Type == nsIContent::eForStyle &&
aNode->IsContent() &&
aNode->AsContent()->IsRootOfNativeAnonymousSubtree() &&
aNode->OwnerDoc()->GetRootElement() == parent);
if (MOZ_UNLIKELY(needSlowCall)) {
MOZ_ASSERT(aNode->IsContent());
return aNode->AsContent()->GetFlattenedTreeParentNodeInternal(Type);
}
return parent;
}
inline nsINode*
nsINode::GetFlattenedTreeParentNode() const
{
return ::GetFlattenedTreeParentNode<nsIContent::eNotForStyle>(this);
}
inline nsIContent*
nsIContent::GetFlattenedTreeParent() const
{
nsINode* parent = GetFlattenedTreeParentNode();
return (parent && parent->IsContent()) ? parent->AsContent() : nullptr;
}
inline nsINode*
nsINode::GetFlattenedTreeParentNodeForStyle() const
{
return ::GetFlattenedTreeParentNode<nsIContent::eForStyle>(this);
}
#endif // nsIContentInlines_h
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