image/decoders/icon/win/nsIconChannel.h
author Nicholas Nethercote <nnethercote@mozilla.com>
Thu, 17 Aug 2017 15:29:03 +1000
changeset 376429 e3e420a10be0c7b2037fab085aa7e25633b6242a
parent 238052 3888d638471522c96bfb27973a5a9f4bfbbbbdb6
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1390428 (part 9) - Remove nsXPIDLCString. r=erahm. This is straightforward, with only two notable things. - `#include "nsXPIDLString.h" is replaced with `#include "nsString.h"` throughout, because all nsXPIDLString.h did was include nsString.h. The exception is for files which already include nsString.h, in which case the patch just removes the nsXPIDLString.h inclusion. - The patch removes the |xpidl_string| gtest, but improves the |voided| test to cover some of its ground, e.g. testing Adopt(nullptr).

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * 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 "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"
#include "nsIIconURI.h"

#include <windows.h>

class nsIFile;

class nsIconChannel final : public nsIChannel, public nsIStreamListener
{
  ~nsIconChannel();

public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSIREQUEST
  NS_DECL_NSICHANNEL
  NS_DECL_NSIREQUESTOBSERVER
  NS_DECL_NSISTREAMLISTENER

  nsIconChannel();

  nsresult Init(nsIURI* uri);

protected:
  nsCOMPtr<nsIURI> mUrl;
  nsCOMPtr<nsIURI> mOriginalURI;
  nsCOMPtr<nsILoadGroup> mLoadGroup;
  nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
  nsCOMPtr<nsISupports>  mOwner;
  nsCOMPtr<nsILoadInfo>  mLoadInfo;

  nsCOMPtr<nsIInputStreamPump> mPump;
  nsCOMPtr<nsIStreamListener>  mListener;

  nsresult ExtractIconInfoFromUrl(nsIFile** aLocalFile,
                                  uint32_t* aDesiredImageSize,
                                  nsCString& aContentType,
                                  nsCString& aFileExtension);
  nsresult GetHIconFromFile(HICON* hIcon);
  nsresult MakeInputStream(nsIInputStream** _retval, bool nonBlocking);

  // Functions specific to Vista and above
protected:
  nsresult GetStockHIcon(nsIMozIconURI* aIconURI, HICON* hIcon);
};

#endif // mozilla_image_encoders_icon_win_nsIconChannel_h