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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /image/MultipartImage.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'image/MultipartImage.h')
-rw-r--r--image/MultipartImage.h81
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diff --git a/image/MultipartImage.h b/image/MultipartImage.h
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+/* -*- 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