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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /image/MultipartImage.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'image/MultipartImage.h')
-rw-r--r-- | image/MultipartImage.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/image/MultipartImage.h b/image/MultipartImage.h new file mode 100644 index 0000000000..d4dbb845c0 --- /dev/null +++ b/image/MultipartImage.h @@ -0,0 +1,81 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +#ifndef mozilla_image_MultipartImage_h +#define mozilla_image_MultipartImage_h + +#include "ImageWrapper.h" +#include "IProgressObserver.h" +#include "ProgressTracker.h" + +namespace mozilla { +namespace image { + +class NextPartObserver; + +/** + * An Image wrapper that implements support for multipart/x-mixed-replace + * images. + */ +class MultipartImage : public ImageWrapper, public IProgressObserver { + public: + MOZ_DECLARE_REFCOUNTED_TYPENAME(MultipartImage) + // We need to always declare refcounting here, because + // IProgressObserver has pure-virtual refcounting. + NS_DECL_ISUPPORTS_INHERITED + + void BeginTransitionToPart(Image* aNextPart); + + // Overridden ImageWrapper methods: + virtual already_AddRefed<imgIContainer> Unwrap() override; + virtual already_AddRefed<ProgressTracker> GetProgressTracker() override; + virtual void SetProgressTracker(ProgressTracker* aTracker) override; + virtual nsresult OnImageDataAvailable(nsIRequest* aRequest, + nsIInputStream* aInStr, + uint64_t aSourceOffset, + uint32_t aCount) override; + virtual nsresult OnImageDataComplete(nsIRequest* aRequest, nsresult aStatus, + bool aLastPart) override; + + // We don't support locking or track animation consumers for individual parts, + // so we override these methods to do nothing. + NS_IMETHOD LockImage() override { return NS_OK; } + NS_IMETHOD UnlockImage() override { return NS_OK; } + virtual void IncrementAnimationConsumers() override {} + virtual void DecrementAnimationConsumers() override {} +#ifdef DEBUG + virtual uint32_t GetAnimationConsumers() override { return 1; } +#endif + + // Overridden IProgressObserver methods: + virtual void Notify(int32_t aType, const nsIntRect* aRect = nullptr) override; + virtual void OnLoadComplete(bool aLastPart) override; + virtual void SetHasImage() override; + virtual bool NotificationsDeferred() const override; + virtual void MarkPendingNotify() override; + virtual void ClearPendingNotify() override; + + protected: + virtual ~MultipartImage(); + + private: + friend class ImageFactory; + friend class NextPartObserver; + + explicit MultipartImage(Image* aFirstPart); + void Init(); + + void FinishTransition(); + + RefPtr<ProgressTracker> mTracker; + RefPtr<NextPartObserver> mNextPartObserver; + RefPtr<Image> mNextPart; + bool mPendingNotify : 1; +}; + +} // namespace image +} // namespace mozilla + +#endif // mozilla_image_MultipartImage_h |