docshell/base/nsWebNavigationInfo.h
author Karl Tomlinson <karlt+@karlt.net>
Mon, 24 Aug 2015 19:30:36 +1200
changeset 261782 e4fb01e4e3cd2eed2668c0efc85c35f8a8d42224
parent 242694 db70fd907041471df8102f6bd4a3250078cda8c7
permissions -rw-r--r--
bug 1198656 delay AudioBuffer allocation until required r=padenot This saves an allocation and zeroing for buffers generated by AudioNodes and avoids allocation altogether for empty buffers. Incidentally, RestoreJSChannelData() now avoids unnecessary recreation of Float32Arrays if they already exist after a previous call failed.

/* -*- 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 nsWebNavigationInfo_h__
#define nsWebNavigationInfo_h__

#include "nsIWebNavigationInfo.h"
#include "nsCOMPtr.h"
#include "nsICategoryManager.h"
#include "mozilla/Attributes.h"

class nsCString;

#define NS_WEBNAVIGATION_INFO_CID \
 { 0xf30bc0a2, 0x958b, 0x4287,{0xbf, 0x62, 0xce, 0x38, 0xba, 0x0c, 0x81, 0x1e}}

class nsWebNavigationInfo final : public nsIWebNavigationInfo
{
public:
  nsWebNavigationInfo() {}

  NS_DECL_ISUPPORTS

  NS_DECL_NSIWEBNAVIGATIONINFO

  nsresult Init();

private:
  ~nsWebNavigationInfo() {}

  // Check whether aType is supported.  If this method throws, the
  // value of aIsSupported is not changed.
  nsresult IsTypeSupportedInternal(const nsCString& aType,
                                   uint32_t* aIsSupported);

  nsCOMPtr<nsICategoryManager> mCategoryManager;
};

#endif  // nsWebNavigationInfo_h__