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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 mozilla_dom_HTMLContentElement_h__
#define mozilla_dom_HTMLContentElement_h__
#include "nsAutoPtr.h"
#include "nsINodeList.h"
#include "nsGenericHTMLElement.h"
struct nsCSSSelectorList;
namespace mozilla {
namespace dom {
class DistributedContentList;
class HTMLContentElement final : public nsGenericHTMLElement
{
public:
explicit HTMLContentElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLContentElement,
nsGenericHTMLElement)
static HTMLContentElement* FromContent(nsIContent* aContent)
{
if (aContent->IsHTMLContentElement()) {
return static_cast<HTMLContentElement*>(aContent);
}
return nullptr;
}
virtual bool IsHTMLContentElement() const override { return true; }
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
virtual nsIDOMNode* AsDOMNode() override { return this; }
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers) override;
virtual void UnbindFromTree(bool aDeep = true,
bool aNullParent = true) override;
/**
* Returns whether if the selector of this insertion point
* matches the provided content.
*/
bool Match(nsIContent* aContent);
bool IsInsertionPoint() const { return mIsInsertionPoint; }
nsCOMArray<nsIContent>& MatchedNodes() { return mMatchedNodes; }
void AppendMatchedNode(nsIContent* aContent);
void RemoveMatchedNode(nsIContent* aContent);
void InsertMatchedNode(uint32_t aIndex, nsIContent* aContent);
void ClearMatchedNodes();
virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsIAtom* aPrefix, const nsAString& aValue,
bool aNotify) override;
virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify) override;
// WebIDL methods.
already_AddRefed<DistributedContentList> GetDistributedNodes();
void GetSelect(nsAString& aSelect)
{
Element::GetAttr(kNameSpaceID_None, nsGkAtoms::select, aSelect);
}
void SetSelect(const nsAString& aSelect)
{
Element::SetAttr(kNameSpaceID_None, nsGkAtoms::select, aSelect, true);
}
protected:
virtual ~HTMLContentElement();
virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
/**
* Updates the destination insertion points of the fallback
* content of this insertion point. If there are nodes matched
* to this insertion point, then destination insertion points
* of fallback are cleared, otherwise, this insertion point
* is a destination insertion point.
*/
void UpdateFallbackDistribution();
/**
* An array of nodes from the ShadowRoot host that match the
* content insertion selector.
*/
nsCOMArray<nsIContent> mMatchedNodes;
nsAutoPtr<nsCSSSelectorList> mSelectorList;
bool mValidSelector;
bool mIsInsertionPoint;
};
class DistributedContentList : public nsINodeList
{
public:
explicit DistributedContentList(HTMLContentElement* aHostElement);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DistributedContentList)
// nsIDOMNodeList
NS_DECL_NSIDOMNODELIST
// nsINodeList
virtual nsIContent* Item(uint32_t aIndex) override;
virtual int32_t IndexOf(nsIContent* aContent) override;
virtual nsINode* GetParentObject() override { return mParent; }
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
virtual ~DistributedContentList();
RefPtr<HTMLContentElement> mParent;
nsCOMArray<nsIContent> mDistributedNodes;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_HTMLContentElement_h__
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