mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-09 03:15:11 +00:00
5efd12c5f0
MozReview-Commit-ID: ETITppCzDjo --HG-- extra : rebase_source : ca6f99991c9dfb1cf00c716c57b959d825560858
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/* 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/. */
|
|
|
|
/*
|
|
* interface for rendering objects whose state is saved in
|
|
* session-history (back-forward navigation)
|
|
*/
|
|
|
|
#ifndef _nsIStatefulFrame_h
|
|
#define _nsIStatefulFrame_h
|
|
|
|
#include "nsContentUtils.h"
|
|
#include "nsQueryFrame.h"
|
|
|
|
class nsPresState;
|
|
|
|
class nsIStatefulFrame
|
|
{
|
|
public:
|
|
NS_DECL_QUERYFRAME_TARGET(nsIStatefulFrame)
|
|
|
|
// Save the state for this frame. If this method succeeds, the caller is
|
|
// responsible for deleting the resulting state when done with it.
|
|
NS_IMETHOD SaveState(nsPresState** aState) = 0;
|
|
|
|
// Restore the state for this frame from aState
|
|
NS_IMETHOD RestoreState(nsPresState* aState) = 0;
|
|
|
|
// Generate a key for this stateful frame
|
|
NS_IMETHOD GenerateStateKey(nsIContent* aContent,
|
|
nsIDocument* aDocument,
|
|
nsACString& aKey)
|
|
{
|
|
return nsContentUtils::GenerateStateKey(aContent, aDocument, aKey);
|
|
};
|
|
};
|
|
|
|
#endif /* _nsIStatefulFrame_h */
|