gecko-dev/dom/file/uri/BlobURLChannel.h

53 строки
1.5 KiB
C++

/* -*- 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/. */
#ifndef mozilla_dom_BlobURLChannel_h
#define mozilla_dom_BlobURLChannel_h
#include "nsBaseChannel.h"
#include "nsCOMPtr.h"
#include "nsIInputStream.h"
class nsIURI;
namespace mozilla {
namespace dom {
class BlobImpl;
class BlobURLChannel final : public nsBaseChannel {
public:
BlobURLChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo);
// This method is called when there is not a valid BlobImpl for this channel.
// This method will make ::OpenContentStream to return NS_ERROR_MALFORMED_URI.
void InitFailed();
// There is a valid BlobImpl for the channel. The blob's inputStream will be
// used when ::OpenContentStream is called.
void Initialize(BlobImpl* aBlobImpl);
private:
~BlobURLChannel();
nsresult OpenContentStream(bool aAsync, nsIInputStream** aResult,
nsIChannel** aChannel) override;
void OnChannelDone() override;
// If Initialize() is called, this will contain the blob's inputStream.
nsCOMPtr<nsIInputStream> mInputStream;
// This boolean is used to check that InitFailed() or Initialize() are called
// just once.
bool mInitialized;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_BlobURLChannel_h */