layout/style/nsLayoutStylesheetCache.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is Mozilla Gecko Layout
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Benjamin Smedberg <bsmedberg@covad.net>
  19  * Portions created by the Initial Developer are Copyright (C) 2004
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nsLayoutStylesheetCache_h__
  39 #define nsLayoutStylesheetCache_h__
  40
  41 #include "nsICSSStyleSheet.h"
  42 #include "nsCOMPtr.h"
  43 #include "nsIObserver.h"
  44
  45 class nsIFile;
  46 class nsICSSLoader;
  47
  48 class nsLayoutStylesheetCache
  49  : public nsIObserver
  50 {
  51   NS_DECL_ISUPPORTS
  52   NS_DECL_NSIOBSERVER
  53
  54   static nsICSSStyleSheet* ScrollbarsSheet();
  55   static nsICSSStyleSheet* FormsSheet();
  56   static nsICSSStyleSheet* UserContentSheet();
  57   static nsICSSStyleSheet* UserChromeSheet();
  58
  59   static void Shutdown();
  60
  61 private:
  62   nsLayoutStylesheetCache();
  63   ~nsLayoutStylesheetCache();
  64
  65   static void EnsureGlobal();
  66   void InitFromProfile();
  67   static void LoadSheetFile(nsIFile* aFile, nsCOMPtr<nsICSSStyleSheet> &aSheet);
  68   static void LoadSheet(nsIURI* aURI, nsCOMPtr<nsICSSStyleSheet> &aSheet,
  69                         PRBool aEnableUnsafeRules);
  70
  71   static nsLayoutStylesheetCache* gStyleCache;
  72   static nsICSSLoader* gCSSLoader;
  73   nsCOMPtr<nsICSSStyleSheet> mScrollbarsSheet;
  74   nsCOMPtr<nsICSSStyleSheet> mFormsSheet;
  75   nsCOMPtr<nsICSSStyleSheet> mUserContentSheet;
  76   nsCOMPtr<nsICSSStyleSheet> mUserChromeSheet;
  77 };
  78
  79 #endif