1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #ifndef nsHistory_h___
7 #define nsHistory_h___
8 
9 #include "mozilla/Attributes.h"
10 #include "mozilla/dom/HistoryBinding.h"
11 #include "mozilla/dom/ChildSHistory.h"
12 #include "nsCOMPtr.h"
13 #include "nsCycleCollectionParticipant.h"
14 #include "nsIWeakReferenceUtils.h"  // for nsWeakPtr
15 #include "nsPIDOMWindow.h"          // for GetParentObject
16 #include "nsStringFwd.h"
17 #include "nsWrapperCache.h"
18 
19 class nsIDocShell;
20 class nsISHistory;
21 class nsIWeakReference;
22 class nsPIDOMWindowInner;
23 
24 namespace mozilla {
25 class ErrorResult;
26 }
27 
28 // Script "History" object
29 class nsHistory final : public nsISupports, public nsWrapperCache {
30  public:
31   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
32   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsHistory)
33 
34  public:
35   explicit nsHistory(nsPIDOMWindowInner* aInnerWindow);
36 
37   nsPIDOMWindowInner* GetParentObject() const;
38   virtual JSObject* WrapObject(JSContext* aCx,
39                                JS::Handle<JSObject*> aGivenProto) override;
40 
41   uint32_t GetLength(mozilla::ErrorResult& aRv) const;
42   mozilla::dom::ScrollRestoration GetScrollRestoration(
43       mozilla::ErrorResult& aRv);
44   void SetScrollRestoration(mozilla::dom::ScrollRestoration aMode,
45                             mozilla::ErrorResult& aRv);
46   void GetState(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
47                 mozilla::ErrorResult& aRv) const;
48   void Go(int32_t aDelta, nsIPrincipal& aSubjectPrincipal,
49           mozilla::ErrorResult& aRv);
50   void Back(mozilla::dom::CallerType aCallerType, mozilla::ErrorResult& aRv);
51   void Forward(mozilla::dom::CallerType aCallerType, mozilla::ErrorResult& aRv);
52   void PushState(JSContext* aCx, JS::Handle<JS::Value> aData,
53                  const nsAString& aTitle, const nsAString& aUrl,
54                  mozilla::dom::CallerType aCallerType,
55                  mozilla::ErrorResult& aRv);
56   void ReplaceState(JSContext* aCx, JS::Handle<JS::Value> aData,
57                     const nsAString& aTitle, const nsAString& aUrl,
58                     mozilla::dom::CallerType aCallerType,
59                     mozilla::ErrorResult& aRv);
60 
61  protected:
62   virtual ~nsHistory();
63 
64   void PushOrReplaceState(JSContext* aCx, JS::Handle<JS::Value> aData,
65                           const nsAString& aTitle, const nsAString& aUrl,
66                           mozilla::dom::CallerType aCallerType,
67                           mozilla::ErrorResult& aRv, bool aReplace);
68 
69   already_AddRefed<mozilla::dom::ChildSHistory> GetSessionHistory() const;
70 
71   nsWeakPtr mInnerWindow;
72 };
73 
74 #endif /* nsHistory_h___ */
75