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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsXULPrototypeDocument_h__
#define nsXULPrototypeDocument_h__
#include "js/TracingAPI.h"
#include "mozilla/Attributes.h"
#include "nsCOMArray.h"
#include "nsCOMPtr.h"
#include "nsTArray.h"
#include "nsISerializable.h"
#include "nsCycleCollectionParticipant.h"
#include <functional>
#include "mozilla/dom/Element.h"
class nsAtom;
class nsIPrincipal;
class nsIURI;
class nsNodeInfoManager;
class nsXULPrototypeElement;
class nsXULPrototypePI;
/**
* A "prototype" document that stores shared document information
* for the XUL cache.
* Among other things, stores the tree of nsXULPrototype*
* objects, from which the real DOM tree is built later in
* PrototypeDocumentContentSink::ResumeWalk.
*/
class nsXULPrototypeDocument final : public nsISerializable {
public:
typedef std::function<void()> Callback;
// nsISupports interface
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
// nsISerializable interface
NS_DECL_NSISERIALIZABLE
nsresult InitPrincipal(nsIURI* aURI, nsIPrincipal* aPrincipal);
nsIURI* GetURI();
/**
* Get/set the root nsXULPrototypeElement of the document.
*/
nsXULPrototypeElement* GetRootElement();
void SetRootElement(nsXULPrototypeElement* aElement);
/**
* Add a processing instruction to the prolog. Note that only
* PI nodes are currently stored in a XUL prototype document's
* prolog and that they're handled separately from the rest of
* prototype node tree.
*
* @param aPI an already adrefed PI proto to add. This method takes
* ownership of the passed PI.
*/
nsresult AddProcessingInstruction(nsXULPrototypePI* aPI);
/**
* @note GetProcessingInstructions retains the ownership (the PI
* protos only get deleted when the proto document is deleted)
*/
const nsTArray<RefPtr<nsXULPrototypePI> >& GetProcessingInstructions() const;
nsIPrincipal* DocumentPrincipal();
void SetDocumentPrincipal(nsIPrincipal* aPrincipal);
/**
* If current prototype document has not yet finished loading,
* appends aDocument to the list of documents to notify (via
* PrototypeDocumentContentSink::OnPrototypeLoadDone()) and
* sets aLoaded to false. Otherwise sets aLoaded to true.
*/
nsresult AwaitLoadDone(Callback&& aCallback, bool* aResult);
/**
* Notifies each document registered via AwaitLoadDone on this
* prototype document that the prototype has finished loading.
* The notification is performed by calling
* PrototypeDocumentContentSink::OnPrototypeLoadDone on the
* registered documents.
*/
nsresult NotifyLoadDone();
nsNodeInfoManager* GetNodeInfoManager();
void MarkInCCGeneration(uint32_t aCCGeneration);
NS_DECL_CYCLE_COLLECTION_CLASS(nsXULPrototypeDocument)
void TraceProtos(JSTracer* aTrc);
bool WasL10nCached() { return mWasL10nCached; };
void SetIsL10nCached(bool aIsCached);
void RebuildPrototypeFromElement(nsXULPrototypeElement* aPrototype,
mozilla::dom::Element* aElement, bool aDeep);
void RebuildL10nPrototype(mozilla::dom::Element* aElement, bool aDeep);
protected:
nsCOMPtr<nsIURI> mURI;
RefPtr<nsXULPrototypeElement> mRoot;
nsTArray<RefPtr<nsXULPrototypePI> > mProcessingInstructions;
bool mLoaded;
nsTArray<Callback> mPrototypeWaiters;
RefPtr<nsNodeInfoManager> mNodeInfoManager;
uint32_t mCCGeneration;
uint32_t mGCNumber;
nsXULPrototypeDocument();
virtual ~nsXULPrototypeDocument();
nsresult Init();
friend NS_IMETHODIMP NS_NewXULPrototypeDocument(
nsXULPrototypeDocument** aResult);
static uint32_t gRefCnt;
bool mWasL10nCached;
};
#endif // nsXULPrototypeDocument_h__