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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/generic/nsIStatefulFrame.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/generic/nsIStatefulFrame.h')
-rw-r--r-- | layout/generic/nsIStatefulFrame.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/layout/generic/nsIStatefulFrame.h b/layout/generic/nsIStatefulFrame.h new file mode 100644 index 0000000000..33a24e5e05 --- /dev/null +++ b/layout/generic/nsIStatefulFrame.h @@ -0,0 +1,40 @@ +/* -*- 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/. */ + +/* + * 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" + +namespace mozilla { +class PresState; +} // namespace mozilla + +class nsIStatefulFrame { + public: + NS_DECL_QUERYFRAME_TARGET(nsIStatefulFrame) + + // Save the state for this frame. + virtual mozilla::UniquePtr<mozilla::PresState> SaveState() = 0; + + // Restore the state for this frame from aState + NS_IMETHOD RestoreState(mozilla::PresState* aState) = 0; + + // Generate a key for this stateful frame + virtual void GenerateStateKey(nsIContent* aContent, + mozilla::dom::Document* aDocument, + nsACString& aKey) { + nsContentUtils::GenerateStateKey(aContent, aDocument, aKey); + }; +}; + +#endif /* _nsIStatefulFrame_h */ |