зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.3 KiB
C++
88 строки
2.3 KiB
C++
/* -*- 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/. */
|
|
|
|
/**
|
|
* ChildSHistory represents a view of session history from a child process. It
|
|
* exposes getters for some cached history state, and mutators which are
|
|
* implemented by communicating with the actual history storage in
|
|
* ParentSHistory.
|
|
*
|
|
* NOTE: Currently session history is in transition, meaning that we're still
|
|
* using the legacy nsSHistory class internally. The API exposed from this class
|
|
* should be only the API which we expect to expose when this transition is
|
|
* complete, and special cases will need to call through the LegacySHistory()
|
|
* getters.
|
|
*/
|
|
|
|
#ifndef mozilla_dom_ChildSHistory_h
|
|
#define mozilla_dom_ChildSHistory_h
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "mozilla/ErrorResult.h"
|
|
#include "nsWrapperCache.h"
|
|
|
|
class nsSHistory;
|
|
class nsDocShell;
|
|
class nsISHistory;
|
|
class nsIWebNavigation;
|
|
class nsIGlobalObject;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class ParentSHistory;
|
|
|
|
class ChildSHistory
|
|
: public nsISupports
|
|
, public nsWrapperCache
|
|
{
|
|
public:
|
|
friend class ParentSHistory;
|
|
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ChildSHistory)
|
|
nsISupports* GetParentObject() const;
|
|
JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
|
|
|
|
explicit ChildSHistory(nsDocShell* aDocShell);
|
|
|
|
int32_t Count();
|
|
int32_t Index();
|
|
|
|
/**
|
|
* Reload the current entry in the session history.
|
|
*/
|
|
void Reload(uint32_t aReloadFlags, ErrorResult& aRv);
|
|
|
|
/**
|
|
* The CanGo and Go methods are called with an offset from the current index.
|
|
* Positive numbers go forward in history, while negative numbers go
|
|
* backwards.
|
|
*/
|
|
bool CanGo(int32_t aOffset);
|
|
void Go(int32_t aOffset, ErrorResult& aRv);
|
|
|
|
/**
|
|
* Evicts all content viewers within the current process.
|
|
*/
|
|
void EvictLocalContentViewers();
|
|
|
|
nsISHistory* LegacySHistory();
|
|
|
|
ParentSHistory* GetParentIfSameProcess();
|
|
|
|
private:
|
|
virtual ~ChildSHistory();
|
|
|
|
RefPtr<nsDocShell> mDocShell;
|
|
RefPtr<nsSHistory> mHistory;
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif /* mozilla_dom_ChildSHistory_h */
|