/* -*- 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 nsXBLChildrenElement_h___ #define nsXBLChildrenElement_h___ #include "nsIDOMElement.h" #include "nsINodeList.h" #include "nsBindingManager.h" #include "mozilla/dom/nsXMLElement.h" class nsAnonymousContentList; namespace mozilla { namespace dom { class XBLChildrenElement : public nsXMLElement { public: explicit XBLChildrenElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo) : nsXMLElement(aNodeInfo) { } explicit XBLChildrenElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) : nsXMLElement(aNodeInfo) { } // nsISupports NS_DECL_ISUPPORTS_INHERITED // nsINode interface methods virtual nsresult Clone(mozilla::dom::NodeInfo* aNodeInfo, nsINode** aResult) const override; virtual nsIDOMNode* AsDOMNode() override { return this; } // nsIContent interface methods virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute, bool aNotify) override; virtual bool ParseAttribute(int32_t aNamespaceID, nsIAtom* aAttribute, const nsAString& aValue, nsAttrValue& aResult) override; void AppendInsertedChild(nsIContent* aChild) { mInsertedChildren.AppendElement(aChild); aChild->SetXBLInsertionParent(GetParent()); // Appending an inserted child causes the inserted // children to be projected instead of default content. MaybeRemoveDefaultContent(); } void InsertInsertedChildAt(nsIContent* aChild, uint32_t aIndex) { mInsertedChildren.InsertElementAt(aIndex, aChild); aChild->SetXBLInsertionParent(GetParent()); // Inserting an inserted child causes the inserted // children to be projected instead of default content. MaybeRemoveDefaultContent(); } void RemoveInsertedChild(nsIContent* aChild) { // Can't use this assertion as we cheat for dynamic insertions and // only insert in the innermost insertion point. //NS_ASSERTION(mInsertedChildren.Contains(aChild), // "Removing child that's not there"); mInsertedChildren.RemoveElement(aChild); // After removing the inserted child, default content // may be projected into this insertion point. MaybeSetupDefaultContent(); } void ClearInsertedChildren() { for (uint32_t c = 0; c < mInsertedChildren.Length(); ++c) { mInsertedChildren[c]->SetXBLInsertionParent(nullptr); } mInsertedChildren.Clear(); // After clearing inserted children, default content // will be projected into this insertion point. MaybeSetupDefaultContent(); } void MaybeSetupDefaultContent() { if (!HasInsertedChildren()) { for (nsIContent* child = static_cast<nsINode*>(this)->GetFirstChild(); child; child = child->GetNextSibling()) { child->SetXBLInsertionParent(GetParent()); } } } void MaybeRemoveDefaultContent() { if (!HasInsertedChildren()) { for (nsIContent* child = static_cast<nsINode*>(this)->GetFirstChild(); child; child = child->GetNextSibling()) { child->SetXBLInsertionParent(nullptr); } } } uint32_t InsertedChildrenLength() { return mInsertedChildren.Length(); } bool HasInsertedChildren() { return !mInsertedChildren.IsEmpty(); } int32_t IndexOfInsertedChild(nsIContent* aChild) { return mInsertedChildren.IndexOf(aChild); } bool Includes(nsIContent* aChild) { NS_ASSERTION(!mIncludes.IsEmpty(), "Shouldn't check for includes on default insertion point"); return mIncludes.Contains(aChild->NodeInfo()->NameAtom()); } bool IsDefaultInsertion() { return mIncludes.IsEmpty(); } nsIContent* InsertedChild(uint32_t aIndex) { return mInsertedChildren[aIndex]; } protected: ~XBLChildrenElement(); private: nsTArray<nsIContent*> mInsertedChildren; // WEAK nsTArray<nsCOMPtr<nsIAtom> > mIncludes; }; } // namespace dom } // namespace mozilla class nsAnonymousContentList : public nsINodeList { public: explicit nsAnonymousContentList(nsIContent* aParent) : mParent(aParent) { MOZ_COUNT_CTOR(nsAnonymousContentList); } NS_DECL_CYCLE_COLLECTING_ISUPPORTS NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsAnonymousContentList) // nsIDOMNodeList interface NS_DECL_NSIDOMNODELIST // nsINodeList interface virtual int32_t IndexOf(nsIContent* aContent) override; virtual nsINode* GetParentObject() override { return mParent; } virtual nsIContent* Item(uint32_t aIndex) override; virtual JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override; bool IsListFor(nsIContent* aContent) { return mParent == aContent; } private: virtual ~nsAnonymousContentList() { MOZ_COUNT_DTOR(nsAnonymousContentList); } nsCOMPtr<nsIContent> mParent; }; #endif // nsXBLChildrenElement_h___