nsIconChannel.h - mozsearch

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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_encoders_icon_win_nsIconChannel_h

#define mozilla_image_encoders_icon_win_nsIconChannel_h

#include "mozilla/Attributes.h"

#include "mozilla/MozPromise.h"

#include "nsCOMPtr.h"

#include "nsString.h"

#include "nsIChannel.h"

#include "nsILoadGroup.h"

#include "nsILoadInfo.h"

#include "nsIInterfaceRequestor.h"

#include "nsIInterfaceRequestorUtils.h"

#include "nsIURI.h"

#include "nsIInputStreamPump.h"

#include "nsIStreamListener.h"

namespace mozilla::ipc {

class ByteBuf;

class nsIconChannel final : public nsIChannel, public nsIStreamListener {

 public:

  using ByteBufPromise =

      mozilla::MozPromise<mozilla::ipc::ByteBuf, nsresult, true>;

  NS_DECL_THREADSAFE_ISUPPORTS

  NS_DECL_NSIREQUEST

  NS_DECL_NSICHANNEL

  NS_DECL_NSIREQUESTOBSERVER

  NS_DECL_NSISTREAMLISTENER

  nsIconChannel();

  nsresult Init(nsIURI* uri);

  /// Obtains an icon in Windows ICO format as a ByteBuf instead

  /// of a channel. For use with IPC.

  static RefPtr<ByteBufPromise> GetIconAsync(nsIURI* aURI);

 private:

  ~nsIconChannel();

  nsresult StartAsyncOpen();

  nsCOMPtr<nsIURI> mUrl;

  nsCOMPtr<nsIURI> mOriginalURI;

  nsCOMPtr<nsILoadGroup> mLoadGroup;

  nsCOMPtr<nsIInterfaceRequestor> mCallbacks;

  nsCOMPtr<nsISupports> mOwner;

  nsCOMPtr<nsILoadInfo> mLoadInfo;

  nsCOMPtr<nsIInputStreamPump> mPump;

  nsCOMPtr<nsIStreamListener> mListener;

  bool mCanceled = false;

};

#endif  // mozilla_image_encoders_icon_win_nsIconChannel_h