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/* -*- 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
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