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We shouldn't try to drain a data pipe when we have an invalid handle. Instead, we should just call the callback with |null|, like we do for decoding failures. R=jackson@google.com, jackson@chromium.org Review URL: https://codereview.chromium.org/1213313002.
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
// SKY_ENGINE_CORE_PAINTING_CANVASIMAGE_H_
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// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_ENGINE_CORE_LOADER_CANVASIMAGELOADER_H_
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#define SKY_ENGINE_CORE_LOADER_CANVASIMAGELOADER_H_
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#include "base/memory/weak_ptr.h"
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#include "mojo/common/data_pipe_drainer.h"
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#include "sky/engine/core/loader/ImageDecoderCallback.h"
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#include "sky/engine/platform/SharedBuffer.h"
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#include "sky/engine/tonic/dart_wrappable.h"
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#include "sky/engine/wtf/OwnPtr.h"
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#include "sky/engine/wtf/text/AtomicString.h"
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namespace blink {
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class CanvasImageDecoder : public mojo::common::DataPipeDrainer::Client,
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public RefCounted<CanvasImageDecoder>,
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public DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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public:
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static PassRefPtr<CanvasImageDecoder> create(mojo::ScopedDataPipeConsumerHandle handle, PassOwnPtr<ImageDecoderCallback> callback);
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virtual ~CanvasImageDecoder();
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// mojo::common::DataPipeDrainer::Client
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void OnDataAvailable(const void*, size_t) override;
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void OnDataComplete() override;
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private:
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CanvasImageDecoder(mojo::ScopedDataPipeConsumerHandle handle, PassOwnPtr<ImageDecoderCallback> callback);
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void RejectCallback();
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OwnPtr<mojo::common::DataPipeDrainer> drainer_;
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RefPtr<SharedBuffer> buffer_;
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OwnPtr<ImageDecoderCallback> callback_;
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base::WeakPtrFactory<CanvasImageDecoder> weak_factory_;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_LOADER_CANVASIMAGELOADER_H_
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