gecko-dev/layout/style/nsLayoutStylesheetCache.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Gecko Layout
 *
 * The Initial Developer of the Original Code is
 * Benjamin Smedberg <bsmedberg@covad.net>
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsLayoutStylesheetCache_h__
#define nsLayoutStylesheetCache_h__

#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsAutoPtr.h"

class nsIFile;
class nsCSSStyleSheet;
class nsIURI;

namespace mozilla {
namespace css {
class Loader;
}
}

class nsLayoutStylesheetCache
 : public nsIObserver
{
  NS_DECL_ISUPPORTS
  NS_DECL_NSIOBSERVER

  static nsCSSStyleSheet* ScrollbarsSheet();
  static nsCSSStyleSheet* FormsSheet();
  static nsCSSStyleSheet* UserContentSheet();
  static nsCSSStyleSheet* UserChromeSheet();
  static nsCSSStyleSheet* UASheet();
  static nsCSSStyleSheet* QuirkSheet();

  static void Shutdown();

private:
  nsLayoutStylesheetCache();
  ~nsLayoutStylesheetCache() {}

  static void EnsureGlobal();
  void InitFromProfile();
  static void LoadSheetFile(nsIFile* aFile, nsRefPtr<nsCSSStyleSheet> &aSheet);
  static void LoadSheet(nsIURI* aURI, nsRefPtr<nsCSSStyleSheet> &aSheet,
                        PRBool aEnableUnsafeRules);

  static nsLayoutStylesheetCache* gStyleCache;
  static mozilla::css::Loader* gCSSLoader;
  nsRefPtr<nsCSSStyleSheet> mScrollbarsSheet;
  nsRefPtr<nsCSSStyleSheet> mFormsSheet;
  nsRefPtr<nsCSSStyleSheet> mUserContentSheet;
  nsRefPtr<nsCSSStyleSheet> mUserChromeSheet;
  nsRefPtr<nsCSSStyleSheet> mUASheet;
  nsRefPtr<nsCSSStyleSheet> mQuirkSheet;
};

#endif