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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/style/PreloadedStyleSheet.h | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.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 '')
-rw-r--r-- | layout/style/PreloadedStyleSheet.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/layout/style/PreloadedStyleSheet.h b/layout/style/PreloadedStyleSheet.h new file mode 100644 index 0000000000..e201d76daf --- /dev/null +++ b/layout/style/PreloadedStyleSheet.h @@ -0,0 +1,75 @@ +/* -*- 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/. */ + +/* a CSS style sheet returned from nsIStyleSheetService.preloadSheet */ + +#ifndef mozilla_PreloadedStyleSheet_h +#define mozilla_PreloadedStyleSheet_h + +#include "mozilla/css/SheetParsingMode.h" +#include "mozilla/NotNull.h" +#include "mozilla/Result.h" +#include "nsCOMPtr.h" +#include "nsCycleCollectionParticipant.h" +#include "nsICSSLoaderObserver.h" +#include "nsIPreloadedStyleSheet.h" + +class nsIURI; + +namespace mozilla { +namespace dom { +class Promise; +} + +class StyleSheet; + +class PreloadedStyleSheet : public nsIPreloadedStyleSheet { + public: + PreloadedStyleSheet(nsIURI*, css::SheetParsingMode); + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_CYCLE_COLLECTION_CLASS(PreloadedStyleSheet) + + // *aResult is not addrefed, since the PreloadedStyleSheet holds a strong + // reference to the sheet. + nsresult GetSheet(StyleSheet** aResult); + + nsresult Preload(); + nsresult PreloadAsync(NotNull<dom::Promise*> aPromise); + + protected: + virtual ~PreloadedStyleSheet() = default; + + private: + class StylesheetPreloadObserver final : public nsICSSLoaderObserver { + public: + NS_DECL_ISUPPORTS + + explicit StylesheetPreloadObserver(NotNull<dom::Promise*> aPromise, + PreloadedStyleSheet* aSheet) + : mPromise(aPromise), mPreloadedSheet(aSheet) {} + + NS_IMETHOD StyleSheetLoaded(StyleSheet* aSheet, bool aWasDeferred, + nsresult aStatus) override; + + protected: + virtual ~StylesheetPreloadObserver() = default; + + private: + RefPtr<dom::Promise> mPromise; + RefPtr<PreloadedStyleSheet> mPreloadedSheet; + }; + + RefPtr<StyleSheet> mSheet; + + bool mLoaded; + nsCOMPtr<nsIURI> mURI; + css::SheetParsingMode mParsingMode; +}; + +} // namespace mozilla + +#endif // mozilla_PreloadedStyleSheet_h |